id stringlengths 19 19 | content stringlengths 22 69.3k | max_stars_repo_path stringlengths 91 133 |
|---|---|---|
d2a_code_data_44354 | void avformat_free_context(AVFormatContext *s)
{
int i;
AVStream *st;
av_opt_free(s);
if (s->iformat && s->iformat->priv_class && s->priv_data)
av_opt_free(s->priv_data);
for(i=0;i<s->nb_streams;i++) {
st = s->streams[i];
if (st->parser) {
av_parser_close(st->parser);
}
if (st->attached_pic.data)
av_free_packet(&st->attached_pic);
av_dict_free(&st->metadata);
av_free(st->index_entries);
av_free(st->codec->extradata);
av_free(st->codec->subtitle_header);
av_free(st->codec);
av_free(st->priv_data);
av_free(st->info);
av_free(st);
}
for(i=s->nb_programs-1; i>=0; i--) {
av_dict_free(&s->programs[i]->metadata);
av_freep(&s->programs[i]->stream_index);
av_freep(&s->programs[i]);
}
av_freep(&s->programs);
av_freep(&s->priv_data);
while(s->nb_chapters--) {
av_dict_free(&s->chapters[s->nb_chapters]->metadata);
av_free(s->chapters[s->nb_chapters]);
}
av_freep(&s->chapters);
av_dict_free(&s->metadata);
av_freep(&s->streams);
av_free(s);
} | https://github.com/libav/libav/blob/a7329e5fc22433dfeaf7af22fb40fe3cada21385/libavformat/utils.c/#L2649 |
d2a_code_data_44355 | STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method,
STACK_OF(SSL_CIPHER) *tls13_ciphersuites,
STACK_OF(SSL_CIPHER) **cipher_list,
STACK_OF(SSL_CIPHER) **cipher_list_by_id,
const char *rule_str,
CERT *c)
{
int ok, num_of_ciphers, num_of_alias_max, num_of_group_aliases, i;
uint32_t disabled_mkey, disabled_auth, disabled_enc, disabled_mac;
STACK_OF(SSL_CIPHER) *cipherstack;
const char *rule_p;
CIPHER_ORDER *co_list = NULL, *head = NULL, *tail = NULL, *curr;
const SSL_CIPHER **ca_list = NULL;
if (rule_str == NULL || cipher_list == NULL || cipher_list_by_id == NULL)
return NULL;
#ifndef OPENSSL_NO_EC
if (!check_suiteb_cipher_list(ssl_method, c, &rule_str))
return NULL;
#endif
disabled_mkey = disabled_mkey_mask;
disabled_auth = disabled_auth_mask;
disabled_enc = disabled_enc_mask;
disabled_mac = disabled_mac_mask;
num_of_ciphers = ssl_method->num_ciphers();
co_list = OPENSSL_malloc(sizeof(*co_list) * num_of_ciphers);
if (co_list == NULL) {
SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
return NULL;
}
ssl_cipher_collect_ciphers(ssl_method, num_of_ciphers,
disabled_mkey, disabled_auth, disabled_enc,
disabled_mac, co_list, &head, &tail);
ssl_cipher_apply_rule(0, SSL_kECDHE, SSL_aECDSA, 0, 0, 0, 0, CIPHER_ADD,
-1, &head, &tail);
ssl_cipher_apply_rule(0, SSL_kECDHE, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head,
&tail);
ssl_cipher_apply_rule(0, SSL_kECDHE, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head,
&tail);
ssl_cipher_apply_rule(0, 0, 0, SSL_AESGCM, 0, 0, 0, CIPHER_ADD, -1,
&head, &tail);
ssl_cipher_apply_rule(0, 0, 0, SSL_CHACHA20, 0, 0, 0, CIPHER_ADD, -1,
&head, &tail);
ssl_cipher_apply_rule(0, 0, 0, SSL_AES ^ SSL_AESGCM, 0, 0, 0, CIPHER_ADD,
-1, &head, &tail);
ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, &tail);
ssl_cipher_apply_rule(0, 0, 0, 0, SSL_MD5, 0, 0, CIPHER_ORD, -1, &head,
&tail);
ssl_cipher_apply_rule(0, 0, SSL_aNULL, 0, 0, 0, 0, CIPHER_ORD, -1, &head,
&tail);
ssl_cipher_apply_rule(0, SSL_kRSA, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head,
&tail);
ssl_cipher_apply_rule(0, SSL_kPSK, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head,
&tail);
ssl_cipher_apply_rule(0, 0, 0, SSL_RC4, 0, 0, 0, CIPHER_ORD, -1, &head,
&tail);
if (!ssl_cipher_strength_sort(&head, &tail)) {
OPENSSL_free(co_list);
return NULL;
}
ssl_cipher_apply_rule(0, 0, 0, 0, 0, TLS1_2_VERSION, 0, CIPHER_BUMP, -1,
&head, &tail);
ssl_cipher_apply_rule(0, 0, 0, 0, SSL_AEAD, 0, 0, CIPHER_BUMP, -1,
&head, &tail);
ssl_cipher_apply_rule(0, SSL_kDHE | SSL_kECDHE, 0, 0, 0, 0, 0,
CIPHER_BUMP, -1, &head, &tail);
ssl_cipher_apply_rule(0, SSL_kDHE | SSL_kECDHE, 0, 0, SSL_AEAD, 0, 0,
CIPHER_BUMP, -1, &head, &tail);
ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, &tail);
num_of_group_aliases = OSSL_NELEM(cipher_aliases);
num_of_alias_max = num_of_ciphers + num_of_group_aliases + 1;
ca_list = OPENSSL_malloc(sizeof(*ca_list) * num_of_alias_max);
if (ca_list == NULL) {
OPENSSL_free(co_list);
SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
return NULL;
}
ssl_cipher_collect_aliases(ca_list, num_of_group_aliases,
disabled_mkey, disabled_auth, disabled_enc,
disabled_mac, head);
ok = 1;
rule_p = rule_str;
if (strncmp(rule_str, "DEFAULT", 7) == 0) {
ok = ssl_cipher_process_rulestr(SSL_DEFAULT_CIPHER_LIST,
&head, &tail, ca_list, c);
rule_p += 7;
if (*rule_p == ':')
rule_p++;
}
if (ok && (strlen(rule_p) > 0))
ok = ssl_cipher_process_rulestr(rule_p, &head, &tail, ca_list, c);
OPENSSL_free(ca_list);
if (!ok) {
OPENSSL_free(co_list);
return NULL;
}
if ((cipherstack = sk_SSL_CIPHER_new_null()) == NULL) {
OPENSSL_free(co_list);
return NULL;
}
for (i = 0; i < sk_SSL_CIPHER_num(tls13_ciphersuites); i++) {
if (!sk_SSL_CIPHER_push(cipherstack,
sk_SSL_CIPHER_value(tls13_ciphersuites, i))) {
sk_SSL_CIPHER_free(cipherstack);
return NULL;
}
}
for (curr = head; curr != NULL; curr = curr->next) {
if (curr->active) {
if (!sk_SSL_CIPHER_push(cipherstack, curr->cipher)) {
OPENSSL_free(co_list);
sk_SSL_CIPHER_free(cipherstack);
return NULL;
}
#ifdef CIPHER_DEBUG
fprintf(stderr, "<%s>\n", curr->cipher->name);
#endif
}
}
OPENSSL_free(co_list);
if (!update_cipher_list_by_id(cipher_list_by_id, cipherstack)) {
sk_SSL_CIPHER_free(cipherstack);
return NULL;
}
sk_SSL_CIPHER_free(*cipher_list);
*cipher_list = cipherstack;
return cipherstack;
} | https://github.com/openssl/openssl/blob/4845aeba4c49e1bd65259a5014d7e3ab38657d42/ssl/ssl_ciph.c/#L1577 |
d2a_code_data_44356 | static int kek_unwrap_key(unsigned char *out, size_t *outlen,
const unsigned char *in, size_t inlen,
EVP_CIPHER_CTX *ctx)
{
size_t blocklen = EVP_CIPHER_CTX_block_size(ctx);
unsigned char *tmp;
int outl, rv = 0;
if (inlen < 2 * blocklen) {
return 0;
}
if (inlen % blocklen) {
return 0;
}
tmp = OPENSSL_malloc(inlen);
if (tmp == NULL)
return 0;
if (!EVP_DecryptUpdate(ctx, tmp + inlen - 2 * blocklen, &outl,
in + inlen - 2 * blocklen, blocklen * 2)
|| !EVP_DecryptUpdate(ctx, tmp, &outl,
tmp + inlen - blocklen, blocklen)
|| !EVP_DecryptUpdate(ctx, tmp, &outl, in, inlen - blocklen)
|| !EVP_DecryptInit_ex(ctx, NULL, NULL, NULL, NULL)
|| !EVP_DecryptUpdate(ctx, tmp, &outl, tmp, inlen))
goto err;
if (((tmp[1] ^ tmp[4]) & (tmp[2] ^ tmp[5]) & (tmp[3] ^ tmp[6])) != 0xff) {
goto err;
}
if (inlen < (size_t)(tmp[0] - 4)) {
goto err;
}
*outlen = (size_t)tmp[0];
memcpy(out, tmp + 4, *outlen);
rv = 1;
err:
OPENSSL_clear_free(tmp, inlen);
return rv;
} | https://github.com/openssl/openssl/blob/846ec07d904f9cc81d486db0db14fb84f61ff6e5/crypto/cms/cms_pwri.c/#L258 |
d2a_code_data_44357 | int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
{
int i, nw, lb, rb;
BN_ULONG *t, *f;
BN_ULONG l;
bn_check_top(r);
bn_check_top(a);
if (n < 0) {
BNerr(BN_F_BN_LSHIFT, BN_R_INVALID_SHIFT);
return 0;
}
nw = n / BN_BITS2;
if (bn_wexpand(r, a->top + nw + 1) == NULL)
return 0;
r->neg = a->neg;
lb = n % BN_BITS2;
rb = BN_BITS2 - lb;
f = a->d;
t = r->d;
t[a->top + nw] = 0;
if (lb == 0)
for (i = a->top - 1; i >= 0; i--)
t[nw + i] = f[i];
else
for (i = a->top - 1; i >= 0; i--) {
l = f[i];
t[nw + i + 1] |= (l >> rb) & BN_MASK2;
t[nw + i] = (l << lb) & BN_MASK2;
}
memset(t, 0, sizeof(*t) * nw);
r->top = a->top + nw + 1;
bn_correct_top(r);
bn_check_top(r);
return 1;
} | https://github.com/openssl/openssl/blob/b8c32081e02b7008a90d878eccce46da256dfe86/crypto/bn/bn_shift.c/#L112 |
d2a_code_data_44358 | static SwsVector *sws_getShiftedVec(SwsVector *a, int shift){
int length= a->length + FFABS(shift)*2;
double *coeff= av_malloc(length*sizeof(double));
int i;
SwsVector *vec= av_malloc(sizeof(SwsVector));
vec->coeff= coeff;
vec->length= length;
for (i=0; i<length; i++) coeff[i]= 0.0;
for (i=0; i<a->length; i++)
{
coeff[i + (length-1)/2 - (a->length-1)/2 - shift]= a->coeff[i];
}
return vec;
} | https://github.com/libav/libav/blob/184bc53db4fded8857af09cee2adc7197940deb7/libswscale/swscale.c/#L3012 |
d2a_code_data_44359 | TXT_DB *TXT_DB_read(BIO *in, int num)
{
TXT_DB *ret = NULL;
int esc = 0;
long ln = 0;
int i, add, n;
int size = BUFSIZE;
int offset = 0;
char *p, *f;
OPENSSL_STRING *pp;
BUF_MEM *buf = NULL;
if ((buf = BUF_MEM_new()) == NULL)
goto err;
if (!BUF_MEM_grow(buf, size))
goto err;
if ((ret = OPENSSL_malloc(sizeof(*ret))) == NULL)
goto err;
ret->num_fields = num;
ret->index = NULL;
ret->qual = NULL;
if ((ret->data = sk_OPENSSL_PSTRING_new_null()) == NULL)
goto err;
if ((ret->index = OPENSSL_malloc(sizeof(*ret->index) * num)) == NULL)
goto err;
if ((ret->qual = OPENSSL_malloc(sizeof(*(ret->qual)) * num)) == NULL)
goto err;
for (i = 0; i < num; i++) {
ret->index[i] = NULL;
ret->qual[i] = NULL;
}
add = (num + 1) * sizeof(char *);
buf->data[size - 1] = '\0';
offset = 0;
for (;;) {
if (offset != 0) {
size += BUFSIZE;
if (!BUF_MEM_grow_clean(buf, size))
goto err;
}
buf->data[offset] = '\0';
BIO_gets(in, &(buf->data[offset]), size - offset);
ln++;
if (buf->data[offset] == '\0')
break;
if ((offset == 0) && (buf->data[0] == '#'))
continue;
i = strlen(&(buf->data[offset]));
offset += i;
if (buf->data[offset - 1] != '\n')
continue;
else {
buf->data[offset - 1] = '\0';
if ((p = OPENSSL_malloc(add + offset)) == NULL)
goto err;
offset = 0;
}
pp = (char **)p;
p += add;
n = 0;
pp[n++] = p;
i = 0;
f = buf->data;
esc = 0;
for (;;) {
if (*f == '\0')
break;
if (*f == '\t') {
if (esc)
p--;
else {
*(p++) = '\0';
f++;
if (n >= num)
break;
pp[n++] = p;
continue;
}
}
esc = (*f == '\\');
*(p++) = *(f++);
}
*(p++) = '\0';
if ((n != num) || (*f != '\0')) {
OPENSSL_free(pp);
ret->error = DB_ERROR_WRONG_NUM_FIELDS;
goto err;
}
pp[n] = p;
if (!sk_OPENSSL_PSTRING_push(ret->data, pp)) {
OPENSSL_free(pp);
goto err;
}
}
BUF_MEM_free(buf);
return ret;
err:
BUF_MEM_free(buf);
if (ret != NULL) {
sk_OPENSSL_PSTRING_free(ret->data);
OPENSSL_free(ret->index);
OPENSSL_free(ret->qual);
OPENSSL_free(ret);
}
return NULL;
} | https://github.com/openssl/openssl/blob/a8ca496ddb532d7f7dc356fd2b026697388d2384/crypto/txt_db/txt_db.c/#L111 |
d2a_code_data_44360 | static int seq_parse_frame_data(SeqDemuxContext *seq, ByteIOContext *pb)
{
unsigned int offset_table[4], buffer_num[4];
TiertexSeqFrameBuffer *seq_buffer;
int i, e, err;
seq->current_frame_offs += SEQ_FRAME_SIZE;
url_fseek(pb, seq->current_frame_offs, SEEK_SET);
seq->current_audio_data_offs = get_le16(pb);
if (seq->current_audio_data_offs != 0) {
seq->current_audio_data_size = SEQ_AUDIO_BUFFER_SIZE * 2;
} else {
seq->current_audio_data_size = 0;
}
seq->current_pal_data_offs = get_le16(pb);
if (seq->current_pal_data_offs != 0) {
seq->current_pal_data_size = 768;
} else {
seq->current_pal_data_size = 0;
}
for (i = 0; i < 4; i++)
buffer_num[i] = get_byte(pb);
for (i = 0; i < 4; i++)
offset_table[i] = get_le16(pb);
for (i = 0; i < 3; i++) {
if (offset_table[i] != 0) {
for (e = i + 1; e < 4 && offset_table[e] == 0; e++);
err = seq_fill_buffer(seq, pb, buffer_num[1 + i],
offset_table[i],
offset_table[e] - offset_table[i]);
if (err != 0)
return err;
}
}
if (buffer_num[0] != 255) {
if (buffer_num[0] >= SEQ_NUM_FRAME_BUFFERS)
return AVERROR_INVALIDDATA;
seq_buffer = &seq->frame_buffers[buffer_num[0]];
seq->current_video_data_size = seq_buffer->fill_size;
seq->current_video_data_ptr = seq_buffer->data;
seq_buffer->fill_size = 0;
} else {
seq->current_video_data_size = 0;
seq->current_video_data_ptr = 0;
}
return 0;
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavformat/tiertexseq.c/#L157 |
d2a_code_data_44361 | void *OPENSSL_LH_delete(OPENSSL_LHASH *lh, const void *data)
{
unsigned long hash;
OPENSSL_LH_NODE *nn, **rn;
void *ret;
lh->error = 0;
rn = getrn(lh, data, &hash);
if (*rn == NULL) {
lh->num_no_delete++;
return (NULL);
} else {
nn = *rn;
*rn = nn->next;
ret = nn->data;
OPENSSL_free(nn);
lh->num_delete++;
}
lh->num_items--;
if ((lh->num_nodes > MIN_NODES) &&
(lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))
contract(lh);
return (ret);
} | https://github.com/openssl/openssl/blob/6438632420cee9821409221ef6717edc5ee408c1/crypto/lhash/lhash.c/#L123 |
d2a_code_data_44362 | static void opt_output_file(const char *filename)
{
AVFormatContext *oc;
int err, use_video, use_audio, use_subtitle, use_data;
int input_has_video, input_has_audio, input_has_subtitle, input_has_data;
AVFormatParameters params, *ap = ¶ms;
AVOutputFormat *file_oformat;
if (!strcmp(filename, "-"))
filename = "pipe:";
oc = avformat_alloc_context();
if (!oc) {
print_error(filename, AVERROR(ENOMEM));
ffmpeg_exit(1);
}
if (last_asked_format) {
file_oformat = av_guess_format(last_asked_format, NULL, NULL);
if (!file_oformat) {
fprintf(stderr, "Requested output format '%s' is not a suitable output format\n", last_asked_format);
ffmpeg_exit(1);
}
last_asked_format = NULL;
} else {
file_oformat = av_guess_format(NULL, filename, NULL);
if (!file_oformat) {
fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
filename);
ffmpeg_exit(1);
}
}
oc->oformat = file_oformat;
av_strlcpy(oc->filename, filename, sizeof(oc->filename));
if (!strcmp(file_oformat->name, "ffm") &&
av_strstart(filename, "http:", NULL)) {
int err = read_ffserver_streams(oc, filename);
if (err < 0) {
print_error(filename, err);
ffmpeg_exit(1);
}
} else {
use_video = file_oformat->video_codec != CODEC_ID_NONE || video_stream_copy || video_codec_name;
use_audio = file_oformat->audio_codec != CODEC_ID_NONE || audio_stream_copy || audio_codec_name;
use_subtitle = file_oformat->subtitle_codec != CODEC_ID_NONE || subtitle_stream_copy || subtitle_codec_name;
use_data = data_stream_copy || data_codec_name;
if (nb_input_files > 0) {
check_inputs(&input_has_video,
&input_has_audio,
&input_has_subtitle,
&input_has_data);
if (!input_has_video)
use_video = 0;
if (!input_has_audio)
use_audio = 0;
if (!input_has_subtitle)
use_subtitle = 0;
if (!input_has_data)
use_data = 0;
}
if (audio_disable) use_audio = 0;
if (video_disable) use_video = 0;
if (subtitle_disable) use_subtitle = 0;
if (data_disable) use_data = 0;
if (use_video) new_video_stream(oc, nb_output_files);
if (use_audio) new_audio_stream(oc, nb_output_files);
if (use_subtitle) new_subtitle_stream(oc, nb_output_files);
if (use_data) new_data_stream(oc, nb_output_files);
oc->timestamp = recording_timestamp;
av_metadata_copy(&oc->metadata, metadata, 0);
av_metadata_free(&metadata);
}
output_files[nb_output_files++] = oc;
if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
if (!av_filename_number_test(oc->filename)) {
print_error(oc->filename, AVERROR(EINVAL));
ffmpeg_exit(1);
}
}
if (!(oc->oformat->flags & AVFMT_NOFILE)) {
if (!file_overwrite &&
(strchr(filename, ':') == NULL ||
filename[1] == ':' ||
av_strstart(filename, "file:", NULL))) {
if (avio_check(filename, 0) == 0) {
if (!using_stdin) {
fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
fflush(stderr);
if (!read_yesno()) {
fprintf(stderr, "Not overwriting - exiting\n");
ffmpeg_exit(1);
}
}
else {
fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
ffmpeg_exit(1);
}
}
}
if ((err = avio_open(&oc->pb, filename, AVIO_FLAG_WRITE)) < 0) {
print_error(filename, err);
ffmpeg_exit(1);
}
}
memset(ap, 0, sizeof(*ap));
if (av_set_parameters(oc, ap) < 0) {
fprintf(stderr, "%s: Invalid encoding parameters\n",
oc->filename);
ffmpeg_exit(1);
}
oc->preload= (int)(mux_preload*AV_TIME_BASE);
oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
oc->loop_output = loop_output;
oc->flags |= AVFMT_FLAG_NONBLOCK;
set_context_opts(oc, avformat_opts, AV_OPT_FLAG_ENCODING_PARAM, NULL);
av_freep(&forced_key_frames);
uninit_opts();
init_opts();
} | https://github.com/libav/libav/blob/d0005d347d0831c904630fe70408c9fd4eec18e8/ffmpeg.c/#L3741 |
d2a_code_data_44363 | static int sab_diamond_search(MpegEncContext * s, int *best, int dmin,
int src_index, int ref_index, int const penalty_factor,
int size, int h, int flags)
{
MotionEstContext * const c= &s->me;
me_cmp_func cmpf, chroma_cmpf;
Minima minima[MAX_SAB_SIZE];
const int minima_count= FFABS(c->dia_size);
int i, j;
LOAD_COMMON
LOAD_COMMON2
int map_generation= c->map_generation;
cmpf= s->dsp.me_cmp[size];
chroma_cmpf= s->dsp.me_cmp[size+1];
for(j=i=0; i<ME_MAP_SIZE && j<MAX_SAB_SIZE; i++){
uint32_t key= map[i];
key += (1<<(ME_MAP_MV_BITS-1)) + (1<<(2*ME_MAP_MV_BITS-1));
if((key&((-1)<<(2*ME_MAP_MV_BITS))) != map_generation) continue;
minima[j].height= score_map[i];
minima[j].x= key & ((1<<ME_MAP_MV_BITS)-1); key>>=ME_MAP_MV_BITS;
minima[j].y= key & ((1<<ME_MAP_MV_BITS)-1);
minima[j].x-= (1<<(ME_MAP_MV_BITS-1));
minima[j].y-= (1<<(ME_MAP_MV_BITS-1));
if( minima[j].x > xmax || minima[j].x < xmin
|| minima[j].y > ymax || minima[j].y < ymin)
continue;
minima[j].checked=0;
if(minima[j].x || minima[j].y)
minima[j].height+= (mv_penalty[((minima[j].x)<<shift)-pred_x] + mv_penalty[((minima[j].y)<<shift)-pred_y])*penalty_factor;
j++;
}
qsort(minima, j, sizeof(Minima), minima_cmp);
for(; j<minima_count; j++){
minima[j].height=256*256*256*64;
minima[j].checked=0;
minima[j].x= minima[j].y=0;
}
for(i=0; i<minima_count; i++){
const int x= minima[i].x;
const int y= minima[i].y;
int d;
if(minima[i].checked) continue;
if( x >= xmax || x <= xmin
|| y >= ymax || y <= ymin)
continue;
SAB_CHECK_MV(x-1, y)
SAB_CHECK_MV(x+1, y)
SAB_CHECK_MV(x , y-1)
SAB_CHECK_MV(x , y+1)
minima[i].checked= 1;
}
best[0]= minima[0].x;
best[1]= minima[0].y;
dmin= minima[0].height;
if( best[0] < xmax && best[0] > xmin
&& best[1] < ymax && best[1] > ymin){
int d;
CHECK_MV(best[0]-1, best[1])
CHECK_MV(best[0]+1, best[1])
CHECK_MV(best[0], best[1]-1)
CHECK_MV(best[0], best[1]+1)
}
return dmin;
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/motion_est_template.c/#L891 |
d2a_code_data_44364 | static void vp5_parse_coeff(VP56Context *s)
{
VP56RangeCoder *c = &s->c;
VP56Model *model = s->modelp;
uint8_t *permute = s->scantable.permutated;
uint8_t *model1, *model2;
int coeff, sign, coeff_idx;
int b, i, cg, idx, ctx, ctx_last;
int pt = 0;
for (b=0; b<6; b++) {
int ct = 1;
if (b > 3) pt = 1;
ctx = 6*s->coeff_ctx[vp56_b6to4[b]][0]
+ s->above_blocks[s->above_block_idx[b]].not_null_dc;
model1 = model->coeff_dccv[pt];
model2 = model->coeff_dcct[pt][ctx];
coeff_idx = 0;
for (;;) {
if (vp56_rac_get_prob(c, model2[0])) {
if (vp56_rac_get_prob(c, model2[2])) {
if (vp56_rac_get_prob(c, model2[3])) {
s->coeff_ctx[vp56_b6to4[b]][coeff_idx] = 4;
idx = vp56_rac_get_tree(c, vp56_pc_tree, model1);
sign = vp56_rac_get(c);
coeff = vp56_coeff_bias[idx+5];
for (i=vp56_coeff_bit_length[idx]; i>=0; i--)
coeff += vp56_rac_get_prob(c, vp56_coeff_parse_table[idx][i]) << i;
} else {
if (vp56_rac_get_prob(c, model2[4])) {
coeff = 3 + vp56_rac_get_prob(c, model1[5]);
s->coeff_ctx[vp56_b6to4[b]][coeff_idx] = 3;
} else {
coeff = 2;
s->coeff_ctx[vp56_b6to4[b]][coeff_idx] = 2;
}
sign = vp56_rac_get(c);
}
ct = 2;
} else {
ct = 1;
s->coeff_ctx[vp56_b6to4[b]][coeff_idx] = 1;
sign = vp56_rac_get(c);
coeff = 1;
}
coeff = (coeff ^ -sign) + sign;
if (coeff_idx)
coeff *= s->dequant_ac;
s->block_coeff[b][permute[coeff_idx]] = coeff;
} else {
if (ct && !vp56_rac_get_prob(c, model2[1]))
break;
ct = 0;
s->coeff_ctx[vp56_b6to4[b]][coeff_idx] = 0;
}
coeff_idx++;
if (coeff_idx >= 64)
break;
cg = vp5_coeff_groups[coeff_idx];
ctx = s->coeff_ctx[vp56_b6to4[b]][coeff_idx];
model1 = model->coeff_ract[pt][ct][cg];
model2 = cg > 2 ? model1 : model->coeff_acct[pt][ct][cg][ctx];
}
ctx_last = FFMIN(s->coeff_ctx_last[vp56_b6to4[b]], 24);
s->coeff_ctx_last[vp56_b6to4[b]] = coeff_idx;
if (coeff_idx < ctx_last)
for (i=coeff_idx; i<=ctx_last; i++)
s->coeff_ctx[vp56_b6to4[b]][i] = 5;
s->above_blocks[s->above_block_idx[b]].not_null_dc = s->coeff_ctx[vp56_b6to4[b]][0];
}
} | https://github.com/libav/libav/blob/dbc2424baa5aa4c72026d167f0678f2374620f44/libavcodec/vp5.c/#L240 |
d2a_code_data_44365 | static int cms_SignerInfo_content_sign(CMS_ContentInfo *cms,
CMS_SignerInfo *si, BIO *chain)
{
EVP_MD_CTX *mctx = EVP_MD_CTX_new();
int r = 0;
EVP_PKEY_CTX *pctx = NULL;
if (mctx == NULL) {
CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, ERR_R_MALLOC_FAILURE);
return 0;
}
if (!si->pkey) {
CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, CMS_R_NO_PRIVATE_KEY);
goto err;
}
if (!cms_DigestAlgorithm_find_ctx(mctx, chain, si->digestAlgorithm))
goto err;
if (si->pctx && !cms_sd_asn1_ctrl(si, 0))
goto err;
if (CMS_signed_get_attr_count(si) >= 0) {
ASN1_OBJECT *ctype =
cms->d.signedData->encapContentInfo->eContentType;
unsigned char md[EVP_MAX_MD_SIZE];
unsigned int mdlen;
if (!EVP_DigestFinal_ex(mctx, md, &mdlen))
goto err;
if (!CMS_signed_add1_attr_by_NID(si, NID_pkcs9_messageDigest,
V_ASN1_OCTET_STRING, md, mdlen))
goto err;
if (CMS_signed_add1_attr_by_NID(si, NID_pkcs9_contentType,
V_ASN1_OBJECT, ctype, -1) <= 0)
goto err;
if (!CMS_SignerInfo_sign(si))
goto err;
} else if (si->pctx) {
unsigned char *sig;
size_t siglen;
unsigned char md[EVP_MAX_MD_SIZE];
unsigned int mdlen;
pctx = si->pctx;
if (!EVP_DigestFinal_ex(mctx, md, &mdlen))
goto err;
siglen = EVP_PKEY_size(si->pkey);
sig = OPENSSL_malloc(siglen);
if (sig == NULL) {
CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, ERR_R_MALLOC_FAILURE);
goto err;
}
if (EVP_PKEY_sign(pctx, sig, &siglen, md, mdlen) <= 0) {
OPENSSL_free(sig);
goto err;
}
ASN1_STRING_set0(si->signature, sig, siglen);
} else {
unsigned char *sig;
unsigned int siglen;
sig = OPENSSL_malloc(EVP_PKEY_size(si->pkey));
if (sig == NULL) {
CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, ERR_R_MALLOC_FAILURE);
goto err;
}
if (!EVP_SignFinal(mctx, sig, &siglen, si->pkey)) {
CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, CMS_R_SIGNFINAL_ERROR);
OPENSSL_free(sig);
goto err;
}
ASN1_STRING_set0(si->signature, sig, siglen);
}
r = 1;
err:
EVP_MD_CTX_free(mctx);
EVP_PKEY_CTX_free(pctx);
return r;
} | https://github.com/openssl/openssl/blob/b842fcbb37cf3cded72dd7706abd8d54a10cd508/crypto/cms/cms_sd.c/#L614 |
d2a_code_data_44366 | static int cert_status_cb(SSL *s, void *arg)
{
tlsextstatusctx *srctx = arg;
BIO *err = srctx->err;
char *host, *port, *path;
int use_ssl;
unsigned char *rspder = NULL;
int rspderlen;
STACK_OF(OPENSSL_STRING) *aia = NULL;
X509 *x = NULL;
X509_STORE_CTX inctx;
X509_OBJECT obj;
OCSP_REQUEST *req = NULL;
OCSP_RESPONSE *resp = NULL;
OCSP_CERTID *id = NULL;
STACK_OF(X509_EXTENSION) *exts;
int ret = SSL_TLSEXT_ERR_NOACK;
int i;
#if 0
STACK_OF(OCSP_RESPID) *ids;
SSL_get_tlsext_status_ids(s, &ids);
BIO_printf(err, "cert_status: received %d ids\n", sk_OCSP_RESPID_num(ids));
#endif
if (srctx->verbose)
BIO_puts(err, "cert_status: callback called\n");
x = SSL_get_certificate(s);
aia = X509_get1_ocsp(x);
if (aia)
{
if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
&host, &port, &path, &use_ssl))
{
BIO_puts(err, "cert_status: can't parse AIA URL\n");
goto err;
}
if (srctx->verbose)
BIO_printf(err, "cert_status: AIA URL: %s\n",
sk_OPENSSL_STRING_value(aia, 0));
}
else
{
if (!srctx->host)
{
BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n");
goto done;
}
host = srctx->host;
path = srctx->path;
port = srctx->port;
use_ssl = srctx->use_ssl;
}
if (!X509_STORE_CTX_init(&inctx,
SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
NULL, NULL))
goto err;
if (X509_STORE_get_by_subject(&inctx,X509_LU_X509,
X509_get_issuer_name(x),&obj) <= 0)
{
BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
X509_STORE_CTX_cleanup(&inctx);
goto done;
}
req = OCSP_REQUEST_new();
if (!req)
goto err;
id = OCSP_cert_to_id(NULL, x, obj.data.x509);
X509_free(obj.data.x509);
X509_STORE_CTX_cleanup(&inctx);
if (!id)
goto err;
if (!OCSP_request_add0_id(req, id))
goto err;
id = NULL;
SSL_get_tlsext_status_exts(s, &exts);
for (i = 0; i < sk_X509_EXTENSION_num(exts); i++)
{
X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
if (!OCSP_REQUEST_add_ext(req, ext, -1))
goto err;
}
resp = process_responder(err, req, host, path, port, use_ssl, NULL,
srctx->timeout);
if (!resp)
{
BIO_puts(err, "cert_status: error querying responder\n");
goto done;
}
rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
if (rspderlen <= 0)
goto err;
SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
if (srctx->verbose)
{
BIO_puts(err, "cert_status: ocsp response sent:\n");
OCSP_RESPONSE_print(err, resp, 2);
}
ret = SSL_TLSEXT_ERR_OK;
done:
if (ret != SSL_TLSEXT_ERR_OK)
ERR_print_errors(err);
if (aia)
{
OPENSSL_free(host);
OPENSSL_free(path);
OPENSSL_free(port);
X509_email_free(aia);
}
if (id)
OCSP_CERTID_free(id);
if (req)
OCSP_REQUEST_free(req);
if (resp)
OCSP_RESPONSE_free(resp);
return ret;
err:
ret = SSL_TLSEXT_ERR_ALERT_FATAL;
goto done;
} | https://github.com/openssl/openssl/blob/ec4a50b3c3f2f50caccfd52e939857a5d6f02fd1/apps/s_server.c/#L822 |
d2a_code_data_44367 | static int epzs_motion_search4(MpegEncContext * s,
int *mx_ptr, int *my_ptr, int P[10][2],
int src_index, int ref_index, int16_t (*last_mv)[2],
int ref_mv_scale)
{
MotionEstContext * const c= &s->me;
int best[2]={0, 0};
int d, dmin;
int map_generation;
const int penalty_factor= c->penalty_factor;
const int size=1;
const int h=8;
const int ref_mv_stride= s->mb_stride;
const int ref_mv_xy= s->mb_x + s->mb_y *ref_mv_stride;
me_cmp_func cmpf, chroma_cmpf;
LOAD_COMMON
int flags= c->flags;
LOAD_COMMON2
cmpf= s->dsp.me_cmp[size];
chroma_cmpf= s->dsp.me_cmp[size+1];
map_generation= update_map_generation(c);
dmin = 1000000;
if (s->first_slice_line) {
CHECK_MV(P_LEFT[0]>>shift, P_LEFT[1]>>shift)
CHECK_CLIPPED_MV((last_mv[ref_mv_xy][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy][1]*ref_mv_scale + (1<<15))>>16)
CHECK_MV(P_MV1[0]>>shift, P_MV1[1]>>shift)
}else{
CHECK_MV(P_MV1[0]>>shift, P_MV1[1]>>shift)
CHECK_MV(P_MEDIAN[0]>>shift, P_MEDIAN[1]>>shift)
CHECK_MV(P_LEFT[0]>>shift, P_LEFT[1]>>shift)
CHECK_MV(P_TOP[0]>>shift, P_TOP[1]>>shift)
CHECK_MV(P_TOPRIGHT[0]>>shift, P_TOPRIGHT[1]>>shift)
CHECK_CLIPPED_MV((last_mv[ref_mv_xy][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy][1]*ref_mv_scale + (1<<15))>>16)
}
if(dmin>64*4){
CHECK_CLIPPED_MV((last_mv[ref_mv_xy+1][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy+1][1]*ref_mv_scale + (1<<15))>>16)
if(s->mb_y+1<s->end_mb_y)
CHECK_CLIPPED_MV((last_mv[ref_mv_xy+ref_mv_stride][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy+ref_mv_stride][1]*ref_mv_scale + (1<<15))>>16)
}
dmin= diamond_search(s, best, dmin, src_index, ref_index, penalty_factor, size, h, flags);
*mx_ptr= best[0];
*my_ptr= best[1];
return dmin;
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/motion_est_template.c/#L1168 |
d2a_code_data_44368 | static int var_diamond_search(MpegEncContext * s, int *best, int dmin,
int src_index, int ref_index, int const penalty_factor,
int size, int h, int flags)
{
MotionEstContext * const c= &s->me;
me_cmp_func cmpf, chroma_cmpf;
int dia_size;
LOAD_COMMON
LOAD_COMMON2
int map_generation= c->map_generation;
cmpf= s->dsp.me_cmp[size];
chroma_cmpf= s->dsp.me_cmp[size+1];
for(dia_size=1; dia_size<=c->dia_size; dia_size++){
int dir, start, end;
const int x= best[0];
const int y= best[1];
start= FFMAX(0, y + dia_size - ymax);
end = FFMIN(dia_size, xmax - x + 1);
for(dir= start; dir<end; dir++){
int d;
CHECK_MV(x + dir , y + dia_size - dir);
}
start= FFMAX(0, x + dia_size - xmax);
end = FFMIN(dia_size, y - ymin + 1);
for(dir= start; dir<end; dir++){
int d;
CHECK_MV(x + dia_size - dir, y - dir );
}
start= FFMAX(0, -y + dia_size + ymin );
end = FFMIN(dia_size, x - xmin + 1);
for(dir= start; dir<end; dir++){
int d;
CHECK_MV(x - dir , y - dia_size + dir);
}
start= FFMAX(0, -x + dia_size + xmin );
end = FFMIN(dia_size, ymax - y + 1);
for(dir= start; dir<end; dir++){
int d;
CHECK_MV(x - dia_size + dir, y + dir );
}
if(x!=best[0] || y!=best[1])
dia_size=0;
#if 0
{
int dx, dy, i;
static int stats[8*8];
dx= FFABS(x-best[0]);
dy= FFABS(y-best[1]);
stats[dy*8 + dx] ++;
if(256*256*256*64 % (stats[0]+1)==0){
for(i=0; i<64; i++){
if((i&7)==0) printf("\n");
printf("%6d ", stats[i]);
}
printf("\n");
}
}
#endif
}
return dmin;
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/motion_est_template.c/#L930 |
d2a_code_data_44369 | int rtp_parse_packet(RTPDemuxContext *s, AVPacket *pkt,
const uint8_t *buf, int len)
{
unsigned int ssrc, h;
int payload_type, seq, ret, flags = 0;
AVStream *st;
uint32_t timestamp;
int rv= 0;
if (!buf) {
if(s->st && s->parse_packet) {
timestamp = RTP_NOTS_VALUE;
rv= s->parse_packet(s->ic, s->dynamic_protocol_context,
s->st, pkt, ×tamp, NULL, 0, flags);
finalize_packet(s, pkt, timestamp);
return rv;
} else {
if (s->read_buf_index >= s->read_buf_size)
return -1;
ret = ff_mpegts_parse_packet(s->ts, pkt, s->buf + s->read_buf_index,
s->read_buf_size - s->read_buf_index);
if (ret < 0)
return -1;
s->read_buf_index += ret;
if (s->read_buf_index < s->read_buf_size)
return 1;
else
return 0;
}
}
if (len < 12)
return -1;
if ((buf[0] & 0xc0) != (RTP_VERSION << 6))
return -1;
if (buf[1] >= RTCP_SR && buf[1] <= RTCP_APP) {
return rtcp_parse_packet(s, buf, len);
}
payload_type = buf[1] & 0x7f;
if (buf[1] & 0x80)
flags |= RTP_FLAG_MARKER;
seq = AV_RB16(buf + 2);
timestamp = AV_RB32(buf + 4);
ssrc = AV_RB32(buf + 8);
s->ssrc = ssrc;
if (s->payload_type != payload_type)
return -1;
st = s->st;
if(!rtp_valid_packet_in_sequence(&s->statistics, seq))
{
av_log(st?st->codec:NULL, AV_LOG_ERROR, "RTP: PT=%02x: bad cseq %04x expected=%04x\n",
payload_type, seq, ((s->seq + 1) & 0xffff));
return -1;
}
s->seq = seq;
len -= 12;
buf += 12;
if (!st) {
ret = ff_mpegts_parse_packet(s->ts, pkt, buf, len);
if (ret < 0)
return -1;
if (ret < len) {
s->read_buf_size = len - ret;
memcpy(s->buf, buf + ret, s->read_buf_size);
s->read_buf_index = 0;
return 1;
}
return 0;
} else if (s->parse_packet) {
rv = s->parse_packet(s->ic, s->dynamic_protocol_context,
s->st, pkt, ×tamp, buf, len, flags);
} else {
switch(st->codec->codec_id) {
case CODEC_ID_MP2:
case CODEC_ID_MP3:
if (len <= 4)
return -1;
h = AV_RB32(buf);
len -= 4;
buf += 4;
av_new_packet(pkt, len);
memcpy(pkt->data, buf, len);
break;
case CODEC_ID_MPEG1VIDEO:
case CODEC_ID_MPEG2VIDEO:
if (len <= 4)
return -1;
h = AV_RB32(buf);
buf += 4;
len -= 4;
if (h & (1 << 26)) {
if (len <= 4)
return -1;
buf += 4;
len -= 4;
}
av_new_packet(pkt, len);
memcpy(pkt->data, buf, len);
break;
default:
av_new_packet(pkt, len);
memcpy(pkt->data, buf, len);
break;
}
pkt->stream_index = st->index;
}
finalize_packet(s, pkt, timestamp);
return rv;
} | https://github.com/libav/libav/blob/f41237c9dbe9751ef025812edebdec762797e57d/libavformat/rtpdec.c/#L518 |
d2a_code_data_44370 | int DH_check_pub_key(const DH *dh, const BIGNUM *pub_key, int *ret)
{
int ok = 0;
BIGNUM *q = NULL;
*ret = 0;
q = BN_new();
if (q == NULL)
goto err;
BN_set_word(q, 1);
if (BN_cmp(pub_key, q) <= 0)
*ret |= DH_CHECK_PUBKEY_TOO_SMALL;
BN_copy(q, dh->p);
BN_sub_word(q, 1);
if (BN_cmp(pub_key, q) >= 0)
*ret |= DH_CHECK_PUBKEY_TOO_LARGE;
ok = 1;
err:
BN_free(q);
return (ok);
} | https://github.com/openssl/openssl/blob/ec04e866343d40a1e3e8e5db79557e279a2dd0d8/crypto/dh/dh_check.c/#L162 |
d2a_code_data_44371 | static void
doapr_outch(char **sbuffer,
char **buffer, size_t *currlen, size_t *maxlen, int c)
{
assert(*sbuffer != NULL || buffer != NULL);
if (buffer) {
while (*currlen >= *maxlen) {
if (*buffer == NULL) {
if (*maxlen == 0)
*maxlen = 1024;
*buffer = OPENSSL_malloc(*maxlen);
if(!*buffer) {
return;
}
if (*currlen > 0) {
assert(*sbuffer != NULL);
memcpy(*buffer, *sbuffer, *currlen);
}
*sbuffer = NULL;
} else {
*maxlen += 1024;
*buffer = OPENSSL_realloc(*buffer, *maxlen);
if(!*buffer) {
return;
}
}
}
assert(*sbuffer != NULL || *buffer != NULL);
}
if (*currlen < *maxlen) {
if (*sbuffer)
(*sbuffer)[(*currlen)++] = (char)c;
else
(*buffer)[(*currlen)++] = (char)c;
}
return;
} | https://github.com/openssl/openssl/blob/ac5a110621ca48f0bebd5b4d76d081de403da29e/crypto/bio/b_print.c/#L740 |
d2a_code_data_44372 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | https://github.com/openssl/openssl/blob/fff684168c7923aa85e6b4381d71d933396e32b0/crypto/bn/bn_ctx.c/#L268 |
d2a_code_data_44373 | static char *shacrypt(const char *passwd, const char *magic, const char *salt)
{
static const char rounds_prefix[] = "rounds=";
# define SALT_LEN_MAX 16
# define ROUNDS_DEFAULT 5000
# define ROUNDS_MIN 1000
# define ROUNDS_MAX 999999999
static char out_buf[3 + 17 + 17 + 86 + 1];
unsigned char buf[SHA512_DIGEST_LENGTH];
unsigned char temp_buf[SHA512_DIGEST_LENGTH];
size_t buf_size = 0;
char ascii_magic[2];
char ascii_salt[17];
char *ascii_passwd = NULL;
size_t n;
EVP_MD_CTX *md = NULL, *md2 = NULL;
const EVP_MD *sha = NULL;
size_t passwd_len, salt_len, magic_len;
unsigned int rounds = 5000;
char rounds_custom = 0;
char *p_bytes = NULL;
char *s_bytes = NULL;
char *cp = NULL;
passwd_len = strlen(passwd);
magic_len = strlen(magic);
if (magic_len != 1)
return NULL;
switch (magic[0]) {
case '5':
sha = EVP_sha256();
buf_size = 32;
break;
case '6':
sha = EVP_sha512();
buf_size = 64;
break;
default:
return NULL;
}
if (strncmp(salt, rounds_prefix, sizeof(rounds_prefix) - 1) == 0) {
const char *num = salt + sizeof(rounds_prefix) - 1;
char *endp;
unsigned long int srounds = strtoul (num, &endp, 10);
if (*endp == '$') {
salt = endp + 1;
if (srounds > ROUNDS_MAX)
rounds = ROUNDS_MAX;
else if (srounds < ROUNDS_MIN)
rounds = ROUNDS_MIN;
else
rounds = (unsigned int)srounds;
rounds_custom = 1;
} else {
return NULL;
}
}
OPENSSL_strlcpy(ascii_magic, magic, sizeof(ascii_magic));
#ifdef CHARSET_EBCDIC
if ((magic[0] & 0x80) != 0)
ebcdic2ascii(ascii_magic, ascii_magic, magic_len);
#endif
OPENSSL_strlcpy(ascii_salt, salt, sizeof(ascii_salt));
salt_len = strlen(ascii_salt);
#ifdef CHARSET_EBCDIC
ebcdic2ascii(ascii_salt, ascii_salt, salt_len);
#endif
#ifdef CHARSET_EBCDIC
ascii_passwd = OPENSSL_strdup(passwd);
if (ascii_passwd == NULL)
return NULL;
ebcdic2ascii(ascii_passwd, ascii_passwd, passwd_len);
passwd = ascii_passwd;
#endif
out_buf[0] = 0;
OPENSSL_strlcat(out_buf, ascii_dollar, sizeof(out_buf));
OPENSSL_strlcat(out_buf, ascii_magic, sizeof(out_buf));
OPENSSL_strlcat(out_buf, ascii_dollar, sizeof(out_buf));
if (rounds_custom) {
char tmp_buf[80];
sprintf(tmp_buf, "rounds=%u", rounds);
#ifdef CHARSET_EBCDIC
if (tmp_buf[0] != 0x72)
ebcdic2ascii(tmp_buf, tmp_buf, strlen(tmp_buf));
#endif
OPENSSL_strlcat(out_buf, tmp_buf, sizeof(out_buf));
OPENSSL_strlcat(out_buf, ascii_dollar, sizeof(out_buf));
}
OPENSSL_strlcat(out_buf, ascii_salt, sizeof(out_buf));
if (strlen(out_buf) > 3 + 17 * rounds_custom + salt_len )
goto err;
md = EVP_MD_CTX_new();
if (md == NULL
|| !EVP_DigestInit_ex(md, sha, NULL)
|| !EVP_DigestUpdate(md, passwd, passwd_len)
|| !EVP_DigestUpdate(md, ascii_salt, salt_len))
goto err;
md2 = EVP_MD_CTX_new();
if (md2 == NULL
|| !EVP_DigestInit_ex(md2, sha, NULL)
|| !EVP_DigestUpdate(md2, passwd, passwd_len)
|| !EVP_DigestUpdate(md2, ascii_salt, salt_len)
|| !EVP_DigestUpdate(md2, passwd, passwd_len)
|| !EVP_DigestFinal_ex(md2, buf, NULL))
goto err;
for (n = passwd_len; n > buf_size; n -= buf_size) {
if (!EVP_DigestUpdate(md, buf, buf_size))
goto err;
}
if (!EVP_DigestUpdate(md, buf, n))
goto err;
n = passwd_len;
while (n) {
if (!EVP_DigestUpdate(md,
(n & 1) ? buf : (unsigned const char *)passwd,
(n & 1) ? buf_size : passwd_len))
goto err;
n >>= 1;
}
if (!EVP_DigestFinal_ex(md, buf, NULL))
return NULL;
if (!EVP_DigestInit_ex(md2, sha, NULL))
goto err;
for (n = passwd_len; n > 0; n--)
if (!EVP_DigestUpdate(md2, passwd, passwd_len))
goto err;
if (!EVP_DigestFinal_ex(md2, temp_buf, NULL))
return NULL;
if ((p_bytes = OPENSSL_zalloc(passwd_len)) == NULL)
goto err;
for (cp = p_bytes, n = passwd_len; n > buf_size; n -= buf_size, cp += buf_size)
memcpy(cp, temp_buf, buf_size);
memcpy(cp, temp_buf, n);
if (!EVP_DigestInit_ex(md2, sha, NULL))
goto err;
for (n = 16 + buf[0]; n > 0; n--)
if (!EVP_DigestUpdate(md2, ascii_salt, salt_len))
goto err;
if (!EVP_DigestFinal_ex(md2, temp_buf, NULL))
return NULL;
if ((s_bytes = OPENSSL_zalloc(salt_len)) == NULL)
goto err;
for (cp = s_bytes, n = salt_len; n > buf_size; n -= buf_size, cp += buf_size)
memcpy(cp, temp_buf, buf_size);
memcpy(cp, temp_buf, n);
for (n = 0; n < rounds; n++) {
if (!EVP_DigestInit_ex(md2, sha, NULL))
goto err;
if (!EVP_DigestUpdate(md2,
(n & 1) ? (unsigned const char *)p_bytes : buf,
(n & 1) ? passwd_len : buf_size))
goto err;
if (n % 3) {
if (!EVP_DigestUpdate(md2, s_bytes, salt_len))
goto err;
}
if (n % 7) {
if (!EVP_DigestUpdate(md2, p_bytes, passwd_len))
goto err;
}
if (!EVP_DigestUpdate(md2,
(n & 1) ? buf : (unsigned const char *)p_bytes,
(n & 1) ? buf_size : passwd_len))
goto err;
if (!EVP_DigestFinal_ex(md2, buf, NULL))
goto err;
}
EVP_MD_CTX_free(md2);
EVP_MD_CTX_free(md);
md2 = NULL;
md = NULL;
OPENSSL_free(p_bytes);
OPENSSL_free(s_bytes);
p_bytes = NULL;
s_bytes = NULL;
cp = out_buf + strlen(out_buf);
*cp++ = ascii_dollar[0];
# define b64_from_24bit(B2, B1, B0, N) \
do { \
unsigned int w = ((B2) << 16) | ((B1) << 8) | (B0); \
int i = (N); \
while (i-- > 0) \
{ \
*cp++ = cov_2char[w & 0x3f]; \
w >>= 6; \
} \
} while (0)
switch (magic[0]) {
case '5':
b64_from_24bit (buf[0], buf[10], buf[20], 4);
b64_from_24bit (buf[21], buf[1], buf[11], 4);
b64_from_24bit (buf[12], buf[22], buf[2], 4);
b64_from_24bit (buf[3], buf[13], buf[23], 4);
b64_from_24bit (buf[24], buf[4], buf[14], 4);
b64_from_24bit (buf[15], buf[25], buf[5], 4);
b64_from_24bit (buf[6], buf[16], buf[26], 4);
b64_from_24bit (buf[27], buf[7], buf[17], 4);
b64_from_24bit (buf[18], buf[28], buf[8], 4);
b64_from_24bit (buf[9], buf[19], buf[29], 4);
b64_from_24bit (0, buf[31], buf[30], 3);
break;
case '6':
b64_from_24bit (buf[0], buf[21], buf[42], 4);
b64_from_24bit (buf[22], buf[43], buf[1], 4);
b64_from_24bit (buf[44], buf[2], buf[23], 4);
b64_from_24bit (buf[3], buf[24], buf[45], 4);
b64_from_24bit (buf[25], buf[46], buf[4], 4);
b64_from_24bit (buf[47], buf[5], buf[26], 4);
b64_from_24bit (buf[6], buf[27], buf[48], 4);
b64_from_24bit (buf[28], buf[49], buf[7], 4);
b64_from_24bit (buf[50], buf[8], buf[29], 4);
b64_from_24bit (buf[9], buf[30], buf[51], 4);
b64_from_24bit (buf[31], buf[52], buf[10], 4);
b64_from_24bit (buf[53], buf[11], buf[32], 4);
b64_from_24bit (buf[12], buf[33], buf[54], 4);
b64_from_24bit (buf[34], buf[55], buf[13], 4);
b64_from_24bit (buf[56], buf[14], buf[35], 4);
b64_from_24bit (buf[15], buf[36], buf[57], 4);
b64_from_24bit (buf[37], buf[58], buf[16], 4);
b64_from_24bit (buf[59], buf[17], buf[38], 4);
b64_from_24bit (buf[18], buf[39], buf[60], 4);
b64_from_24bit (buf[40], buf[61], buf[19], 4);
b64_from_24bit (buf[62], buf[20], buf[41], 4);
b64_from_24bit (0, 0, buf[63], 2);
break;
default:
goto err;
}
*cp = '\0';
#ifdef CHARSET_EBCDIC
ascii2ebcdic(out_buf, out_buf, strlen(out_buf));
#endif
return out_buf;
err:
EVP_MD_CTX_free(md2);
EVP_MD_CTX_free(md);
OPENSSL_free(p_bytes);
OPENSSL_free(s_bytes);
OPENSSL_free(ascii_passwd);
return NULL;
} | https://github.com/openssl/openssl/blob/8ae173bb57819a23717fd3c8e7c51cb62f4268d0/apps/passwd.c/#L653 |
d2a_code_data_44374 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | https://github.com/openssl/openssl/blob/18e1e302452e6dea4500b6f981cee7e151294dea/crypto/bn/bn_ctx.c/#L268 |
d2a_code_data_44375 | int BN_hex2bn(BIGNUM **bn, const char *a)
{
BIGNUM *ret = NULL;
BN_ULONG l = 0;
int neg = 0, h, m, i, j, k, c;
int num;
if ((a == NULL) || (*a == '\0'))
return (0);
if (*a == '-') {
neg = 1;
a++;
}
for (i = 0; isxdigit((unsigned char)a[i]); i++) ;
num = i + neg;
if (bn == NULL)
return (num);
if (*bn == NULL) {
if ((ret = BN_new()) == NULL)
return (0);
} else {
ret = *bn;
BN_zero(ret);
}
if (bn_expand(ret, i * 4) == NULL)
goto err;
j = i;
m = 0;
h = 0;
while (j > 0) {
m = ((BN_BYTES * 2) <= j) ? (BN_BYTES * 2) : j;
l = 0;
for (;;) {
c = a[j - m];
if ((c >= '0') && (c <= '9'))
k = c - '0';
else if ((c >= 'a') && (c <= 'f'))
k = c - 'a' + 10;
else if ((c >= 'A') && (c <= 'F'))
k = c - 'A' + 10;
else
k = 0;
l = (l << 4) | k;
if (--m <= 0) {
ret->d[h++] = l;
break;
}
}
j -= (BN_BYTES * 2);
}
ret->top = h;
bn_correct_top(ret);
ret->neg = neg;
*bn = ret;
bn_check_top(ret);
return (num);
err:
if (*bn == NULL)
BN_free(ret);
return (0);
} | https://github.com/openssl/openssl/blob/9c46f4b9cd4912b61cb546c48b678488d7f26ed6/crypto/bn/bn_print.c/#L213 |
d2a_code_data_44376 | static ngx_int_t
ngx_http_upstream_get_random_peer(ngx_peer_connection_t *pc, void *data)
{
ngx_http_upstream_random_peer_data_t *rp = data;
time_t now;
uintptr_t m;
ngx_uint_t i, n;
ngx_http_upstream_rr_peer_t *peer;
ngx_http_upstream_rr_peers_t *peers;
ngx_http_upstream_rr_peer_data_t *rrp;
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, pc->log, 0,
"get random peer, try: %ui", pc->tries);
rrp = &rp->rrp;
peers = rrp->peers;
ngx_http_upstream_rr_peers_rlock(peers);
if (rp->tries > 20 || peers->single) {
ngx_http_upstream_rr_peers_unlock(peers);
return ngx_http_upstream_get_round_robin_peer(pc, rrp);
}
pc->cached = 0;
pc->connection = NULL;
now = ngx_time();
for ( ;; ) {
i = ngx_http_upstream_peek_random_peer(peers, rp);
peer = rp->conf->ranges[i].peer;
n = i / (8 * sizeof(uintptr_t));
m = (uintptr_t) 1 << i % (8 * sizeof(uintptr_t));
if (rrp->tried[n] & m) {
goto next;
}
ngx_http_upstream_rr_peer_lock(peers, peer);
if (peer->down) {
ngx_http_upstream_rr_peer_unlock(peers, peer);
goto next;
}
if (peer->max_fails
&& peer->fails >= peer->max_fails
&& now - peer->checked <= peer->fail_timeout)
{
ngx_http_upstream_rr_peer_unlock(peers, peer);
goto next;
}
if (peer->max_conns && peer->conns >= peer->max_conns) {
ngx_http_upstream_rr_peer_unlock(peers, peer);
goto next;
}
break;
next:
if (++rp->tries > 20) {
ngx_http_upstream_rr_peers_unlock(peers);
return ngx_http_upstream_get_round_robin_peer(pc, rrp);
}
}
rrp->current = peer;
if (now - peer->checked > peer->fail_timeout) {
peer->checked = now;
}
pc->sockaddr = peer->sockaddr;
pc->socklen = peer->socklen;
pc->name = &peer->name;
peer->conns++;
ngx_http_upstream_rr_peer_unlock(peers, peer);
ngx_http_upstream_rr_peers_unlock(peers);
rrp->tried[n] |= m;
return NGX_OK;
} | https://github.com/nginx/nginx/blob/468e37734c48e63296e9f633fd6319519b5f8c74/src/http/modules/ngx_http_upstream_random_module.c/#L276 |
d2a_code_data_44377 | int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
{
assert(pkt->subs != NULL && len != 0);
if (pkt->subs == NULL || len == 0)
return 0;
if (pkt->maxsize - pkt->written < len)
return 0;
if (pkt->buf->length - pkt->written < len) {
size_t newlen;
size_t reflen;
reflen = (len > pkt->buf->length) ? len : pkt->buf->length;
if (reflen > SIZE_MAX / 2) {
newlen = SIZE_MAX;
} else {
newlen = reflen * 2;
if (newlen < DEFAULT_BUF_SIZE)
newlen = DEFAULT_BUF_SIZE;
}
if (BUF_MEM_grow(pkt->buf, newlen) == 0)
return 0;
}
*allocbytes = (unsigned char *)pkt->buf->data + pkt->curr;
return 1;
} | https://github.com/openssl/openssl/blob/e4e1aa903e624044d3319622fc50222f1b2c7328/ssl/packet.c/#L46 |
d2a_code_data_44378 | void *OPENSSL_LH_delete(OPENSSL_LHASH *lh, const void *data)
{
unsigned long hash;
OPENSSL_LH_NODE *nn, **rn;
void *ret;
lh->error = 0;
rn = getrn(lh, data, &hash);
if (*rn == NULL) {
lh->num_no_delete++;
return (NULL);
} else {
nn = *rn;
*rn = nn->next;
ret = nn->data;
OPENSSL_free(nn);
lh->num_delete++;
}
lh->num_items--;
if ((lh->num_nodes > MIN_NODES) &&
(lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))
contract(lh);
return (ret);
} | https://github.com/openssl/openssl/blob/2a7de0fd5d9baf946ef4d2c51096b04dd47a8143/crypto/lhash/lhash.c/#L123 |
d2a_code_data_44379 | static inline void pred_direct_motion(H264Context * const h, int *mb_type){
MpegEncContext * const s = &h->s;
const int mb_xy = s->mb_x + s->mb_y*s->mb_stride;
const int b8_xy = 2*s->mb_x + 2*s->mb_y*h->b8_stride;
const int b4_xy = 4*s->mb_x + 4*s->mb_y*h->b_stride;
const int mb_type_col = h->ref_list[1][0].mb_type[mb_xy];
const int16_t (*l1mv0)[2] = (const int16_t (*)[2]) &h->ref_list[1][0].motion_val[0][b4_xy];
const int16_t (*l1mv1)[2] = (const int16_t (*)[2]) &h->ref_list[1][0].motion_val[1][b4_xy];
const int8_t *l1ref0 = &h->ref_list[1][0].ref_index[0][b8_xy];
const int8_t *l1ref1 = &h->ref_list[1][0].ref_index[1][b8_xy];
const int is_b8x8 = IS_8X8(*mb_type);
unsigned int sub_mb_type;
int i8, i4;
#define MB_TYPE_16x16_OR_INTRA (MB_TYPE_16x16|MB_TYPE_INTRA4x4|MB_TYPE_INTRA16x16|MB_TYPE_INTRA_PCM)
if(IS_8X8(mb_type_col) && !h->sps.direct_8x8_inference_flag){
sub_mb_type = MB_TYPE_8x8|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2;
*mb_type = MB_TYPE_8x8|MB_TYPE_L0L1;
}else if(!is_b8x8 && (mb_type_col & MB_TYPE_16x16_OR_INTRA)){
sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2;
*mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2;
}else{
sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2;
*mb_type = MB_TYPE_8x8|MB_TYPE_L0L1;
}
if(!is_b8x8)
*mb_type |= MB_TYPE_DIRECT2;
if(MB_FIELD)
*mb_type |= MB_TYPE_INTERLACED;
tprintf(s->avctx, "mb_type = %08x, sub_mb_type = %08x, is_b8x8 = %d, mb_type_col = %08x\n", *mb_type, sub_mb_type, is_b8x8, mb_type_col);
if(h->direct_spatial_mv_pred){
int ref[2];
int mv[2][2];
int list;
for(list=0; list<2; list++){
int refa = h->ref_cache[list][scan8[0] - 1];
int refb = h->ref_cache[list][scan8[0] - 8];
int refc = h->ref_cache[list][scan8[0] - 8 + 4];
if(refc == -2)
refc = h->ref_cache[list][scan8[0] - 8 - 1];
ref[list] = refa;
if(ref[list] < 0 || (refb < ref[list] && refb >= 0))
ref[list] = refb;
if(ref[list] < 0 || (refc < ref[list] && refc >= 0))
ref[list] = refc;
if(ref[list] < 0)
ref[list] = -1;
}
if(ref[0] < 0 && ref[1] < 0){
ref[0] = ref[1] = 0;
mv[0][0] = mv[0][1] =
mv[1][0] = mv[1][1] = 0;
}else{
for(list=0; list<2; list++){
if(ref[list] >= 0)
pred_motion(h, 0, 4, list, ref[list], &mv[list][0], &mv[list][1]);
else
mv[list][0] = mv[list][1] = 0;
}
}
if(ref[1] < 0){
if(!is_b8x8)
*mb_type &= ~MB_TYPE_L1;
sub_mb_type &= ~MB_TYPE_L1;
}else if(ref[0] < 0){
if(!is_b8x8)
*mb_type &= ~MB_TYPE_L0;
sub_mb_type &= ~MB_TYPE_L0;
}
if(IS_INTERLACED(*mb_type) != IS_INTERLACED(mb_type_col)){
int pair_xy = s->mb_x + (s->mb_y&~1)*s->mb_stride;
int mb_types_col[2];
int b8_stride = h->b8_stride;
int b4_stride = h->b_stride;
*mb_type = (*mb_type & ~MB_TYPE_16x16) | MB_TYPE_8x8;
if(IS_INTERLACED(*mb_type)){
mb_types_col[0] = h->ref_list[1][0].mb_type[pair_xy];
mb_types_col[1] = h->ref_list[1][0].mb_type[pair_xy+s->mb_stride];
if(s->mb_y&1){
l1ref0 -= 2*b8_stride;
l1ref1 -= 2*b8_stride;
l1mv0 -= 4*b4_stride;
l1mv1 -= 4*b4_stride;
}
b8_stride *= 3;
b4_stride *= 6;
}else{
int cur_poc = s->current_picture_ptr->poc;
int *col_poc = h->ref_list[1]->field_poc;
int col_parity = FFABS(col_poc[0] - cur_poc) >= FFABS(col_poc[1] - cur_poc);
int dy = 2*col_parity - (s->mb_y&1);
mb_types_col[0] =
mb_types_col[1] = h->ref_list[1][0].mb_type[pair_xy + col_parity*s->mb_stride];
l1ref0 += dy*b8_stride;
l1ref1 += dy*b8_stride;
l1mv0 += 2*dy*b4_stride;
l1mv1 += 2*dy*b4_stride;
b8_stride = 0;
}
for(i8=0; i8<4; i8++){
int x8 = i8&1;
int y8 = i8>>1;
int xy8 = x8+y8*b8_stride;
int xy4 = 3*x8+y8*b4_stride;
int a=0, b=0;
if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
continue;
h->sub_mb_type[i8] = sub_mb_type;
fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[0], 1);
fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[1], 1);
if(!IS_INTRA(mb_types_col[y8])
&& ( (l1ref0[xy8] == 0 && FFABS(l1mv0[xy4][0]) <= 1 && FFABS(l1mv0[xy4][1]) <= 1)
|| (l1ref0[xy8] < 0 && l1ref1[xy8] == 0 && FFABS(l1mv1[xy4][0]) <= 1 && FFABS(l1mv1[xy4][1]) <= 1))){
if(ref[0] > 0)
a= pack16to32(mv[0][0],mv[0][1]);
if(ref[1] > 0)
b= pack16to32(mv[1][0],mv[1][1]);
}else{
a= pack16to32(mv[0][0],mv[0][1]);
b= pack16to32(mv[1][0],mv[1][1]);
}
fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, a, 4);
fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, b, 4);
}
}else if(IS_16X16(*mb_type)){
int a=0, b=0;
fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, (uint8_t)ref[0], 1);
fill_rectangle(&h->ref_cache[1][scan8[0]], 4, 4, 8, (uint8_t)ref[1], 1);
if(!IS_INTRA(mb_type_col)
&& ( (l1ref0[0] == 0 && FFABS(l1mv0[0][0]) <= 1 && FFABS(l1mv0[0][1]) <= 1)
|| (l1ref0[0] < 0 && l1ref1[0] == 0 && FFABS(l1mv1[0][0]) <= 1 && FFABS(l1mv1[0][1]) <= 1
&& (h->x264_build>33 || !h->x264_build)))){
if(ref[0] > 0)
a= pack16to32(mv[0][0],mv[0][1]);
if(ref[1] > 0)
b= pack16to32(mv[1][0],mv[1][1]);
}else{
a= pack16to32(mv[0][0],mv[0][1]);
b= pack16to32(mv[1][0],mv[1][1]);
}
fill_rectangle(&h->mv_cache[0][scan8[0]], 4, 4, 8, a, 4);
fill_rectangle(&h->mv_cache[1][scan8[0]], 4, 4, 8, b, 4);
}else{
for(i8=0; i8<4; i8++){
const int x8 = i8&1;
const int y8 = i8>>1;
if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
continue;
h->sub_mb_type[i8] = sub_mb_type;
fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, pack16to32(mv[0][0],mv[0][1]), 4);
fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, pack16to32(mv[1][0],mv[1][1]), 4);
fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[0], 1);
fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[1], 1);
if(!IS_INTRA(mb_type_col) && ( l1ref0[x8 + y8*h->b8_stride] == 0
|| (l1ref0[x8 + y8*h->b8_stride] < 0 && l1ref1[x8 + y8*h->b8_stride] == 0
&& (h->x264_build>33 || !h->x264_build)))){
const int16_t (*l1mv)[2]= l1ref0[x8 + y8*h->b8_stride] == 0 ? l1mv0 : l1mv1;
if(IS_SUB_8X8(sub_mb_type)){
const int16_t *mv_col = l1mv[x8*3 + y8*3*h->b_stride];
if(FFABS(mv_col[0]) <= 1 && FFABS(mv_col[1]) <= 1){
if(ref[0] == 0)
fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, 0, 4);
if(ref[1] == 0)
fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, 0, 4);
}
}else
for(i4=0; i4<4; i4++){
const int16_t *mv_col = l1mv[x8*2 + (i4&1) + (y8*2 + (i4>>1))*h->b_stride];
if(FFABS(mv_col[0]) <= 1 && FFABS(mv_col[1]) <= 1){
if(ref[0] == 0)
*(uint32_t*)h->mv_cache[0][scan8[i8*4+i4]] = 0;
if(ref[1] == 0)
*(uint32_t*)h->mv_cache[1][scan8[i8*4+i4]] = 0;
}
}
}
}
}
}else{
const int *map_col_to_list0[2] = {h->map_col_to_list0[0], h->map_col_to_list0[1]};
const int *dist_scale_factor = h->dist_scale_factor;
if(FRAME_MBAFF){
if(IS_INTERLACED(*mb_type)){
map_col_to_list0[0] = h->map_col_to_list0_field[0];
map_col_to_list0[1] = h->map_col_to_list0_field[1];
dist_scale_factor = h->dist_scale_factor_field;
}
if(IS_INTERLACED(*mb_type) != IS_INTERLACED(mb_type_col)){
const int pair_xy = s->mb_x + (s->mb_y&~1)*s->mb_stride;
int mb_types_col[2];
int y_shift;
*mb_type = MB_TYPE_8x8|MB_TYPE_L0L1
| (is_b8x8 ? 0 : MB_TYPE_DIRECT2)
| (*mb_type & MB_TYPE_INTERLACED);
sub_mb_type = MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2|MB_TYPE_16x16;
if(IS_INTERLACED(*mb_type)){
mb_types_col[0] = h->ref_list[1][0].mb_type[pair_xy];
mb_types_col[1] = h->ref_list[1][0].mb_type[pair_xy+s->mb_stride];
if(s->mb_y&1){
l1ref0 -= 2*h->b8_stride;
l1ref1 -= 2*h->b8_stride;
l1mv0 -= 4*h->b_stride;
l1mv1 -= 4*h->b_stride;
}
y_shift = 0;
if( (mb_types_col[0] & MB_TYPE_16x16_OR_INTRA)
&& (mb_types_col[1] & MB_TYPE_16x16_OR_INTRA)
&& !is_b8x8)
*mb_type |= MB_TYPE_16x8;
else
*mb_type |= MB_TYPE_8x8;
}else{
int dy = (s->mb_y&1) ? 1 : 2;
mb_types_col[0] =
mb_types_col[1] = h->ref_list[1][0].mb_type[pair_xy+s->mb_stride];
l1ref0 += dy*h->b8_stride;
l1ref1 += dy*h->b8_stride;
l1mv0 += 2*dy*h->b_stride;
l1mv1 += 2*dy*h->b_stride;
y_shift = 2;
if((mb_types_col[0] & (MB_TYPE_16x16_OR_INTRA|MB_TYPE_16x8))
&& !is_b8x8)
*mb_type |= MB_TYPE_16x16;
else
*mb_type |= MB_TYPE_8x8;
}
for(i8=0; i8<4; i8++){
const int x8 = i8&1;
const int y8 = i8>>1;
int ref0, scale;
const int16_t (*l1mv)[2]= l1mv0;
if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
continue;
h->sub_mb_type[i8] = sub_mb_type;
fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, 0, 1);
if(IS_INTRA(mb_types_col[y8])){
fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, 0, 1);
fill_rectangle(&h-> mv_cache[0][scan8[i8*4]], 2, 2, 8, 0, 4);
fill_rectangle(&h-> mv_cache[1][scan8[i8*4]], 2, 2, 8, 0, 4);
continue;
}
ref0 = l1ref0[x8 + (y8*2>>y_shift)*h->b8_stride];
if(ref0 >= 0)
ref0 = map_col_to_list0[0][ref0*2>>y_shift];
else{
ref0 = map_col_to_list0[1][l1ref1[x8 + (y8*2>>y_shift)*h->b8_stride]*2>>y_shift];
l1mv= l1mv1;
}
scale = dist_scale_factor[ref0];
fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, ref0, 1);
{
const int16_t *mv_col = l1mv[x8*3 + (y8*6>>y_shift)*h->b_stride];
int my_col = (mv_col[1]<<y_shift)/2;
int mx = (scale * mv_col[0] + 128) >> 8;
int my = (scale * my_col + 128) >> 8;
fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, pack16to32(mx,my), 4);
fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, pack16to32(mx-mv_col[0],my-my_col), 4);
}
}
return;
}
}
if(IS_16X16(*mb_type)){
int ref, mv0, mv1;
fill_rectangle(&h->ref_cache[1][scan8[0]], 4, 4, 8, 0, 1);
if(IS_INTRA(mb_type_col)){
ref=mv0=mv1=0;
}else{
const int ref0 = l1ref0[0] >= 0 ? map_col_to_list0[0][l1ref0[0]]
: map_col_to_list0[1][l1ref1[0]];
const int scale = dist_scale_factor[ref0];
const int16_t *mv_col = l1ref0[0] >= 0 ? l1mv0[0] : l1mv1[0];
int mv_l0[2];
mv_l0[0] = (scale * mv_col[0] + 128) >> 8;
mv_l0[1] = (scale * mv_col[1] + 128) >> 8;
ref= ref0;
mv0= pack16to32(mv_l0[0],mv_l0[1]);
mv1= pack16to32(mv_l0[0]-mv_col[0],mv_l0[1]-mv_col[1]);
}
fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, ref, 1);
fill_rectangle(&h-> mv_cache[0][scan8[0]], 4, 4, 8, mv0, 4);
fill_rectangle(&h-> mv_cache[1][scan8[0]], 4, 4, 8, mv1, 4);
}else{
for(i8=0; i8<4; i8++){
const int x8 = i8&1;
const int y8 = i8>>1;
int ref0, scale;
const int16_t (*l1mv)[2]= l1mv0;
if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
continue;
h->sub_mb_type[i8] = sub_mb_type;
fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, 0, 1);
if(IS_INTRA(mb_type_col)){
fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, 0, 1);
fill_rectangle(&h-> mv_cache[0][scan8[i8*4]], 2, 2, 8, 0, 4);
fill_rectangle(&h-> mv_cache[1][scan8[i8*4]], 2, 2, 8, 0, 4);
continue;
}
ref0 = l1ref0[x8 + y8*h->b8_stride];
if(ref0 >= 0)
ref0 = map_col_to_list0[0][ref0];
else{
ref0 = map_col_to_list0[1][l1ref1[x8 + y8*h->b8_stride]];
l1mv= l1mv1;
}
scale = dist_scale_factor[ref0];
fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, ref0, 1);
if(IS_SUB_8X8(sub_mb_type)){
const int16_t *mv_col = l1mv[x8*3 + y8*3*h->b_stride];
int mx = (scale * mv_col[0] + 128) >> 8;
int my = (scale * mv_col[1] + 128) >> 8;
fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, pack16to32(mx,my), 4);
fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, pack16to32(mx-mv_col[0],my-mv_col[1]), 4);
}else
for(i4=0; i4<4; i4++){
const int16_t *mv_col = l1mv[x8*2 + (i4&1) + (y8*2 + (i4>>1))*h->b_stride];
int16_t *mv_l0 = h->mv_cache[0][scan8[i8*4+i4]];
mv_l0[0] = (scale * mv_col[0] + 128) >> 8;
mv_l0[1] = (scale * mv_col[1] + 128) >> 8;
*(uint32_t*)h->mv_cache[1][scan8[i8*4+i4]] =
pack16to32(mv_l0[0]-mv_col[0],mv_l0[1]-mv_col[1]);
}
}
}
}
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/h264.c/#L1080 |
d2a_code_data_44380 | static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
{
const char *codec_string = encoder ? "encoder" : "decoder";
AVCodec *codec;
codec = encoder ?
avcodec_find_encoder_by_name(name) :
avcodec_find_decoder_by_name(name);
if(!codec) {
av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
exit_program(1);
}
if(codec->type != type) {
av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
exit_program(1);
}
return codec;
} | https://github.com/libav/libav/blob/4bf3c8f226252e18de8051fd0d417c1d39857b67/avconv.c/#L2876 |
d2a_code_data_44381 | static av_always_inline int epzs_motion_search_internal(MpegEncContext * s, int *mx_ptr, int *my_ptr,
int P[10][2], int src_index, int ref_index, int16_t (*last_mv)[2],
int ref_mv_scale, int flags, int size, int h)
{
MotionEstContext * const c= &s->me;
int best[2]={0, 0};
int d;
int dmin;
int map_generation;
int penalty_factor;
const int ref_mv_stride= s->mb_stride;
const int ref_mv_xy= s->mb_x + s->mb_y*ref_mv_stride;
me_cmp_func cmpf, chroma_cmpf;
LOAD_COMMON
LOAD_COMMON2
if(c->pre_pass){
penalty_factor= c->pre_penalty_factor;
cmpf= s->dsp.me_pre_cmp[size];
chroma_cmpf= s->dsp.me_pre_cmp[size+1];
}else{
penalty_factor= c->penalty_factor;
cmpf= s->dsp.me_cmp[size];
chroma_cmpf= s->dsp.me_cmp[size+1];
}
map_generation= update_map_generation(c);
assert(cmpf);
dmin= cmp(s, 0, 0, 0, 0, size, h, ref_index, src_index, cmpf, chroma_cmpf, flags);
map[0]= map_generation;
score_map[0]= dmin;
if((s->pict_type == FF_B_TYPE && !(c->flags & FLAG_DIRECT)) || s->flags&CODEC_FLAG_MV0)
dmin += (mv_penalty[pred_x] + mv_penalty[pred_y])*penalty_factor;
if (s->first_slice_line) {
CHECK_MV(P_LEFT[0]>>shift, P_LEFT[1]>>shift)
CHECK_CLIPPED_MV((last_mv[ref_mv_xy][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy][1]*ref_mv_scale + (1<<15))>>16)
}else{
if(dmin<((h*h*s->avctx->mv0_threshold)>>8)
&& ( P_LEFT[0] |P_LEFT[1]
|P_TOP[0] |P_TOP[1]
|P_TOPRIGHT[0]|P_TOPRIGHT[1])==0){
*mx_ptr= 0;
*my_ptr= 0;
c->skip=1;
return dmin;
}
CHECK_MV( P_MEDIAN[0] >>shift , P_MEDIAN[1] >>shift)
CHECK_CLIPPED_MV((P_MEDIAN[0]>>shift) , (P_MEDIAN[1]>>shift)-1)
CHECK_CLIPPED_MV((P_MEDIAN[0]>>shift) , (P_MEDIAN[1]>>shift)+1)
CHECK_CLIPPED_MV((P_MEDIAN[0]>>shift)-1, (P_MEDIAN[1]>>shift) )
CHECK_CLIPPED_MV((P_MEDIAN[0]>>shift)+1, (P_MEDIAN[1]>>shift) )
CHECK_CLIPPED_MV((last_mv[ref_mv_xy][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy][1]*ref_mv_scale + (1<<15))>>16)
CHECK_MV(P_LEFT[0] >>shift, P_LEFT[1] >>shift)
CHECK_MV(P_TOP[0] >>shift, P_TOP[1] >>shift)
CHECK_MV(P_TOPRIGHT[0]>>shift, P_TOPRIGHT[1]>>shift)
}
if(dmin>h*h*4){
if(c->pre_pass){
CHECK_CLIPPED_MV((last_mv[ref_mv_xy-1][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy-1][1]*ref_mv_scale + (1<<15))>>16)
if(!s->first_slice_line)
CHECK_CLIPPED_MV((last_mv[ref_mv_xy-ref_mv_stride][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy-ref_mv_stride][1]*ref_mv_scale + (1<<15))>>16)
}else{
CHECK_CLIPPED_MV((last_mv[ref_mv_xy+1][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy+1][1]*ref_mv_scale + (1<<15))>>16)
if(s->mb_y+1<s->end_mb_y)
CHECK_CLIPPED_MV((last_mv[ref_mv_xy+ref_mv_stride][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy+ref_mv_stride][1]*ref_mv_scale + (1<<15))>>16)
}
}
if(c->avctx->last_predictor_count){
const int count= c->avctx->last_predictor_count;
const int xstart= FFMAX(0, s->mb_x - count);
const int ystart= FFMAX(0, s->mb_y - count);
const int xend= FFMIN(s->mb_width , s->mb_x + count + 1);
const int yend= FFMIN(s->mb_height, s->mb_y + count + 1);
int mb_y;
for(mb_y=ystart; mb_y<yend; mb_y++){
int mb_x;
for(mb_x=xstart; mb_x<xend; mb_x++){
const int xy= mb_x + 1 + (mb_y + 1)*ref_mv_stride;
int mx= (last_mv[xy][0]*ref_mv_scale + (1<<15))>>16;
int my= (last_mv[xy][1]*ref_mv_scale + (1<<15))>>16;
if(mx>xmax || mx<xmin || my>ymax || my<ymin) continue;
CHECK_MV(mx,my)
}
}
}
dmin= diamond_search(s, best, dmin, src_index, ref_index, penalty_factor, size, h, flags);
*mx_ptr= best[0];
*my_ptr= best[1];
return dmin;
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/motion_est_template.c/#L1056 |
d2a_code_data_44382 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | https://github.com/openssl/openssl/blob/56c7754cab3da9745e52e36b0bf998f8356fd6d5/crypto/bn/bn_ctx.c/#L353 |
d2a_code_data_44383 | ssize_t
ngx_readv_chain(ngx_connection_t *c, ngx_chain_t *chain)
{
u_char *prev;
ssize_t n, size;
ngx_err_t err;
ngx_array_t vec;
ngx_event_t *rev;
struct iovec *iov, iovs[NGX_IOVS];
prev = NULL;
iov = NULL;
size = 0;
vec.elts = iovs;
vec.nelts = 0;
vec.size = sizeof(struct iovec);
vec.nalloc = NGX_IOVS;
vec.pool = c->pool;
while (chain) {
if (prev == chain->buf->last) {
iov->iov_len += chain->buf->end - chain->buf->last;
} else {
iov = ngx_array_push(&vec);
if (iov == NULL) {
return NGX_ERROR;
}
iov->iov_base = (void *) chain->buf->last;
iov->iov_len = chain->buf->end - chain->buf->last;
}
size += chain->buf->end - chain->buf->last;
prev = chain->buf->end;
chain = chain->next;
}
ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
"readv: %d:%d", vec.nelts, iov->iov_len);
rev = c->read;
do {
n = readv(c->fd, (struct iovec *) vec.elts, vec.nelts);
if (n == 0) {
rev->ready = 0;
rev->eof = 1;
return n;
} else if (n > 0) {
if (n < size && !(ngx_event_flags & NGX_USE_GREEDY_EVENT)) {
rev->ready = 0;
}
return n;
}
err = ngx_socket_errno;
if (err == NGX_EAGAIN || err == NGX_EINTR) {
ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err,
"readv() not ready");
n = NGX_AGAIN;
} else {
n = ngx_connection_error(c, err, "readv() failed");
break;
}
} while (err == NGX_EINTR);
rev->ready = 0;
if (n == NGX_ERROR){
c->read->error = 1;
}
return n;
} | https://github.com/nginx/nginx/blob/e4ecddfdb0d2ffc872658e36028971ad9a873726/src/os/unix/ngx_readv_chain.c/#L194 |
d2a_code_data_44384 | int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack,
const char *dir)
{
DIR *d;
struct dirent *dstruct;
int ret = 0;
CRYPTO_w_lock(CRYPTO_LOCK_READDIR);
d = opendir(dir);
if(!d)
{
SYSerr(SYS_F_OPENDIR, get_last_sys_error());
ERR_add_error_data(3, "opendir('", dir, "')");
SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, ERR_R_SYS_LIB);
goto err;
}
while((dstruct=readdir(d)))
{
char buf[1024];
int r;
if(strlen(dir)+strlen(dstruct->d_name)+2 > sizeof buf)
{
SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK,SSL_R_PATH_TOO_LONG);
goto err;
}
r = BIO_snprintf(buf,sizeof buf,"%s/%s",dir,dstruct->d_name);
if (r <= 0 || r >= sizeof buf)
goto err;
if(!SSL_add_file_cert_subjects_to_stack(stack,buf))
goto err;
}
ret = 1;
err:
CRYPTO_w_unlock(CRYPTO_LOCK_READDIR);
return ret;
} | https://github.com/openssl/openssl/blob/4bf4bc784f12bcdc3a3e772f85f6d33f5eccdab3/ssl/ssl_cert.c/#L768 |
d2a_code_data_44385 | static void apply_window_mp3_c(MPA_INT *synth_buf, MPA_INT *window,
int *dither_state, OUT_INT *samples, int incr)
{
register const MPA_INT *w, *w2, *p;
int j;
OUT_INT *samples2;
#if CONFIG_FLOAT
float sum, sum2;
#elif FRAC_BITS <= 15
int sum, sum2;
#else
int64_t sum, sum2;
#endif
memcpy(synth_buf + 512, synth_buf, 32 * sizeof(*synth_buf));
samples2 = samples + 31 * incr;
w = window;
w2 = window + 31;
sum = *dither_state;
p = synth_buf + 16;
SUM8(MACS, sum, w, p);
p = synth_buf + 48;
SUM8(MLSS, sum, w + 32, p);
*samples = round_sample(&sum);
samples += incr;
w++;
for(j=1;j<16;j++) {
sum2 = 0;
p = synth_buf + 16 + j;
SUM8P2(sum, MACS, sum2, MLSS, w, w2, p);
p = synth_buf + 48 - j;
SUM8P2(sum, MLSS, sum2, MLSS, w + 32, w2 + 32, p);
*samples = round_sample(&sum);
samples += incr;
sum += sum2;
*samples2 = round_sample(&sum);
samples2 -= incr;
w++;
w2--;
}
p = synth_buf + 32;
SUM8(MLSS, sum, w + 32, p);
*samples = round_sample(&sum);
*dither_state= sum;
} | https://github.com/libav/libav/blob/63e8d9760f23a4edf81e9ae58c4f6d3baa6ff4dd/libavcodec/mpegaudiodec.c/#L695 |
d2a_code_data_44386 | static int cert_status_cb(SSL *s, void *arg)
{
tlsextstatusctx *srctx = arg;
BIO *err = srctx->err;
char *host, *port, *path;
int use_ssl;
unsigned char *rspder = NULL;
int rspderlen;
STACK_OF(OPENSSL_STRING) *aia = NULL;
X509 *x = NULL;
X509_STORE_CTX inctx;
X509_OBJECT obj;
OCSP_REQUEST *req = NULL;
OCSP_RESPONSE *resp = NULL;
OCSP_CERTID *id = NULL;
STACK_OF(X509_EXTENSION) *exts;
int ret = SSL_TLSEXT_ERR_NOACK;
int i;
#if 0
STACK_OF(OCSP_RESPID) *ids;
SSL_get_tlsext_status_ids(s, &ids);
BIO_printf(err, "cert_status: received %d ids\n", sk_OCSP_RESPID_num(ids));
#endif
if (srctx->verbose)
BIO_puts(err, "cert_status: callback called\n");
x = SSL_get_certificate(s);
aia = X509_get1_ocsp(x);
if (aia)
{
if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
&host, &port, &path, &use_ssl))
{
BIO_puts(err, "cert_status: can't parse AIA URL\n");
goto err;
}
if (srctx->verbose)
BIO_printf(err, "cert_status: AIA URL: %s\n",
sk_OPENSSL_STRING_value(aia, 0));
}
else
{
if (!srctx->host)
{
BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n");
goto done;
}
host = srctx->host;
path = srctx->path;
port = srctx->port;
use_ssl = srctx->use_ssl;
}
if (!X509_STORE_CTX_init(&inctx,
SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
NULL, NULL))
goto err;
if (X509_STORE_get_by_subject(&inctx,X509_LU_X509,
X509_get_issuer_name(x),&obj) <= 0)
{
BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
X509_STORE_CTX_cleanup(&inctx);
goto done;
}
req = OCSP_REQUEST_new();
if (!req)
goto err;
id = OCSP_cert_to_id(NULL, x, obj.data.x509);
X509_free(obj.data.x509);
X509_STORE_CTX_cleanup(&inctx);
if (!id)
goto err;
if (!OCSP_request_add0_id(req, id))
goto err;
id = NULL;
SSL_get_tlsext_status_exts(s, &exts);
for (i = 0; i < sk_X509_EXTENSION_num(exts); i++)
{
X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
if (!OCSP_REQUEST_add_ext(req, ext, -1))
goto err;
}
resp = process_responder(err, req, host, path, port, use_ssl, NULL,
srctx->timeout);
if (!resp)
{
BIO_puts(err, "cert_status: error querying responder\n");
goto done;
}
rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
if (rspderlen <= 0)
goto err;
SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
if (srctx->verbose)
{
BIO_puts(err, "cert_status: ocsp response sent:\n");
OCSP_RESPONSE_print(err, resp, 2);
}
ret = SSL_TLSEXT_ERR_OK;
done:
if (ret != SSL_TLSEXT_ERR_OK)
ERR_print_errors(err);
if (aia)
{
OPENSSL_free(host);
OPENSSL_free(path);
OPENSSL_free(port);
X509_email_free(aia);
}
if (id)
OCSP_CERTID_free(id);
if (req)
OCSP_REQUEST_free(req);
if (resp)
OCSP_RESPONSE_free(resp);
return ret;
err:
ret = SSL_TLSEXT_ERR_ALERT_FATAL;
goto done;
} | https://github.com/openssl/openssl/blob/1c16fd1f033816c98b96a41691625c0c2788e805/apps/s_server.c/#L820 |
d2a_code_data_44387 | static int dvbsub_display_end_segment(AVCodecContext *avctx, const uint8_t *buf,
int buf_size, AVSubtitle *sub)
{
DVBSubContext *ctx = avctx->priv_data;
DVBSubDisplayDefinition *display_def = ctx->display_definition;
DVBSubRegion *region;
DVBSubRegionDisplay *display;
AVSubtitleRect *rect;
DVBSubCLUT *clut;
uint32_t *clut_table;
int i;
int offset_x=0, offset_y=0;
sub->rects = NULL;
sub->start_display_time = 0;
sub->end_display_time = ctx->time_out * 1000;
sub->format = 0;
if (display_def) {
offset_x = display_def->x;
offset_y = display_def->y;
}
sub->num_rects = ctx->display_list_size;
if (sub->num_rects > 0) {
sub->rects = av_mallocz(sizeof(*sub->rects) * sub->num_rects);
if (!sub->rects)
return AVERROR(ENOMEM);
for (i = 0; i < sub->num_rects; i++) {
sub->rects[i] = av_mallocz(sizeof(*sub->rects[i]));
if (!sub->rects[i]) {
int j;
for (j = 0; j < i; j ++)
av_free(sub->rects[j]);
av_free(sub->rects);
return AVERROR(ENOMEM);
}
}
}
i = 0;
for (display = ctx->display_list; display; display = display->next) {
region = get_region(ctx, display->region_id);
rect = sub->rects[i];
if (!region)
continue;
rect->x = display->x_pos + offset_x;
rect->y = display->y_pos + offset_y;
rect->w = region->width;
rect->h = region->height;
rect->nb_colors = 16;
rect->type = SUBTITLE_BITMAP;
rect->linesize[0] = region->width;
clut = get_clut(ctx, region->clut);
if (!clut)
clut = &default_clut;
switch (region->depth) {
case 2:
clut_table = clut->clut4;
break;
case 8:
clut_table = clut->clut256;
break;
case 4:
default:
clut_table = clut->clut16;
break;
}
rect->data[1] = av_mallocz(AVPALETTE_SIZE);
if (!rect->data[1]) {
for (i = 0; i < sub->num_rects; i++)
av_free(sub->rects[i]);
av_free(sub->rects);
return AVERROR(ENOMEM);
}
memcpy(rect->data[1], clut_table, (1 << region->depth) * sizeof(uint32_t));
rect->data[0] = av_malloc(region->buf_size);
if (!rect->data[0]) {
av_free(rect->data[1]);
for (i = 0; i < sub->num_rects; i++)
av_free(sub->rects[i]);
av_free(sub->rects);
return AVERROR(ENOMEM);
}
memcpy(rect->data[0], region->pbuf, region->buf_size);
#if FF_API_AVPICTURE
FF_DISABLE_DEPRECATION_WARNINGS
{
int j;
for (j = 0; j < 4; j++) {
rect->pict.data[j] = rect->data[j];
rect->pict.linesize[j] = rect->linesize[j];
}
}
FF_ENABLE_DEPRECATION_WARNINGS
#endif
i++;
}
sub->num_rects = i;
#ifdef DEBUG
save_display_set(ctx);
#endif
return 1;
} | https://github.com/libav/libav/blob/969f215957b25ec014aeed6e440ecb450e6927c1/libavcodec/dvbsubdec.c/#L1309 |
d2a_code_data_44388 | void *lh_delete(_LHASH *lh, const void *data)
{
unsigned long hash;
LHASH_NODE *nn, **rn;
void *ret;
lh->error = 0;
rn = getrn(lh, data, &hash);
if (*rn == NULL) {
lh->num_no_delete++;
return (NULL);
} else {
nn = *rn;
*rn = nn->next;
ret = nn->data;
OPENSSL_free(nn);
lh->num_delete++;
}
lh->num_items--;
if ((lh->num_nodes > MIN_NODES) &&
(lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))
contract(lh);
return (ret);
} | https://github.com/openssl/openssl/blob/f8e0a5573820bd7318782d4954c6643ff7e58102/crypto/lhash/lhash.c/#L209 |
d2a_code_data_44389 | int ssl3_get_cert_verify(SSL *s)
{
EVP_PKEY *pkey=NULL;
unsigned char *p;
int al,ok,ret=0;
long n;
int type=0,i,j;
X509 *peer;
const EVP_MD *md = NULL;
EVP_MD_CTX mctx;
EVP_MD_CTX_init(&mctx);
n=s->method->ssl_get_message(s,
SSL3_ST_SR_CERT_VRFY_A,
SSL3_ST_SR_CERT_VRFY_B,
-1,
SSL3_RT_MAX_PLAIN_LENGTH,
&ok);
if (!ok) return((int)n);
if (s->session->peer != NULL)
{
peer=s->session->peer;
pkey=X509_get_pubkey(peer);
type=X509_certificate_type(peer,pkey);
}
else
{
peer=NULL;
pkey=NULL;
}
if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE_VERIFY)
{
s->s3->tmp.reuse_message=1;
if ((peer != NULL) && (type & EVP_PKT_SIGN))
{
al=SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_MISSING_VERIFY_MESSAGE);
goto f_err;
}
ret=1;
goto end;
}
if (peer == NULL)
{
SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_NO_CLIENT_CERT_RECEIVED);
al=SSL_AD_UNEXPECTED_MESSAGE;
goto f_err;
}
if (!(type & EVP_PKT_SIGN))
{
SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_SIGNATURE_FOR_NON_SIGNING_CERTIFICATE);
al=SSL_AD_ILLEGAL_PARAMETER;
goto f_err;
}
if (s->s3->change_cipher_spec)
{
SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_CCS_RECEIVED_EARLY);
al=SSL_AD_UNEXPECTED_MESSAGE;
goto f_err;
}
p=(unsigned char *)s->init_msg;
if (n==64 && (pkey->type==NID_id_GostR3410_94 ||
pkey->type == NID_id_GostR3410_2001) )
{
i=64;
}
else
{
if (SSL_USE_SIGALGS(s))
{
int rv = tls12_check_peer_sigalg(&md, s, p, pkey);
if (rv == -1)
{
al = SSL_AD_INTERNAL_ERROR;
goto f_err;
}
else if (rv == 0)
{
al = SSL_AD_DECODE_ERROR;
goto f_err;
}
#ifdef SSL_DEBUG
fprintf(stderr, "USING TLSv1.2 HASH %s\n", EVP_MD_name(md));
#endif
p += 2;
n -= 2;
}
n2s(p,i);
n-=2;
if (i > n)
{
SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_LENGTH_MISMATCH);
al=SSL_AD_DECODE_ERROR;
goto f_err;
}
}
j=EVP_PKEY_size(pkey);
if ((i > j) || (n > j) || (n <= 0))
{
SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_WRONG_SIGNATURE_SIZE);
al=SSL_AD_DECODE_ERROR;
goto f_err;
}
if (SSL_USE_SIGALGS(s))
{
long hdatalen = 0;
void *hdata;
hdatalen = BIO_get_mem_data(s->s3->handshake_buffer, &hdata);
if (hdatalen <= 0)
{
SSLerr(SSL_F_SSL3_GET_CERT_VERIFY, ERR_R_INTERNAL_ERROR);
al=SSL_AD_INTERNAL_ERROR;
goto f_err;
}
#ifdef SSL_DEBUG
fprintf(stderr, "Using TLS 1.2 with client verify alg %s\n",
EVP_MD_name(md));
#endif
if (!EVP_VerifyInit_ex(&mctx, md, NULL)
|| !EVP_VerifyUpdate(&mctx, hdata, hdatalen))
{
SSLerr(SSL_F_SSL3_GET_CERT_VERIFY, ERR_R_EVP_LIB);
al=SSL_AD_INTERNAL_ERROR;
goto f_err;
}
if (EVP_VerifyFinal(&mctx, p , i, pkey) <= 0)
{
al=SSL_AD_DECRYPT_ERROR;
SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_BAD_SIGNATURE);
goto f_err;
}
}
else
#ifndef OPENSSL_NO_RSA
if (pkey->type == EVP_PKEY_RSA)
{
i=RSA_verify(NID_md5_sha1, s->s3->tmp.cert_verify_md,
MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH, p, i,
pkey->pkey.rsa);
if (i < 0)
{
al=SSL_AD_DECRYPT_ERROR;
SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_BAD_RSA_DECRYPT);
goto f_err;
}
if (i == 0)
{
al=SSL_AD_DECRYPT_ERROR;
SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_BAD_RSA_SIGNATURE);
goto f_err;
}
}
else
#endif
#ifndef OPENSSL_NO_DSA
if (pkey->type == EVP_PKEY_DSA)
{
j=DSA_verify(pkey->save_type,
&(s->s3->tmp.cert_verify_md[MD5_DIGEST_LENGTH]),
SHA_DIGEST_LENGTH,p,i,pkey->pkey.dsa);
if (j <= 0)
{
al=SSL_AD_DECRYPT_ERROR;
SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_BAD_DSA_SIGNATURE);
goto f_err;
}
}
else
#endif
#ifndef OPENSSL_NO_ECDSA
if (pkey->type == EVP_PKEY_EC)
{
j=ECDSA_verify(pkey->save_type,
&(s->s3->tmp.cert_verify_md[MD5_DIGEST_LENGTH]),
SHA_DIGEST_LENGTH,p,i,pkey->pkey.ec);
if (j <= 0)
{
al=SSL_AD_DECRYPT_ERROR;
SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,
SSL_R_BAD_ECDSA_SIGNATURE);
goto f_err;
}
}
else
#endif
if (pkey->type == NID_id_GostR3410_94 || pkey->type == NID_id_GostR3410_2001)
{ unsigned char signature[64];
int idx;
EVP_PKEY_CTX *pctx = EVP_PKEY_CTX_new(pkey,NULL);
EVP_PKEY_verify_init(pctx);
if (i!=64) {
fprintf(stderr,"GOST signature length is %d",i);
}
for (idx=0;idx<64;idx++) {
signature[63-idx]=p[idx];
}
j=EVP_PKEY_verify(pctx,signature,64,s->s3->tmp.cert_verify_md,32);
EVP_PKEY_CTX_free(pctx);
if (j<=0)
{
al=SSL_AD_DECRYPT_ERROR;
SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,
SSL_R_BAD_ECDSA_SIGNATURE);
goto f_err;
}
}
else
{
SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,ERR_R_INTERNAL_ERROR);
al=SSL_AD_UNSUPPORTED_CERTIFICATE;
goto f_err;
}
ret=1;
if (0)
{
f_err:
ssl3_send_alert(s,SSL3_AL_FATAL,al);
}
end:
if (s->s3->handshake_buffer)
{
BIO_free(s->s3->handshake_buffer);
s->s3->handshake_buffer = NULL;
s->s3->flags &= ~TLS1_FLAGS_KEEP_HANDSHAKE;
}
EVP_MD_CTX_cleanup(&mctx);
EVP_PKEY_free(pkey);
return(ret);
} | https://github.com/openssl/openssl/blob/9e189b9dc10786c755919e6792e923c584c918a1/ssl/s3_srvr.c/#L3135 |
d2a_code_data_44390 | static inline unsigned int constant_time_lt(unsigned int a, unsigned int b)
{
return constant_time_msb(a^((a^b)|((a-b)^b)));
} | https://github.com/openssl/openssl/blob/732192a0796c4ecbef3b13ccc8ee8ab23e28f483/crypto/constant_time_locl.h/#L137 |
d2a_code_data_44391 | static void floor_encode(venc_context_t * venc, floor_t * fc, PutBitContext * pb, uint_fast16_t * posts, float * floor, int samples) {
int range = 255 / fc->multiplier + 1;
int coded[fc->values];
int i, counter;
put_bits(pb, 1, 1);
put_bits(pb, ilog(range - 1), posts[0]);
put_bits(pb, ilog(range - 1), posts[1]);
coded[0] = coded[1] = 1;
for (i = 2; i < fc->values; i++) {
int predicted = render_point(fc->list[fc->list[i].low].x,
posts[fc->list[i].low],
fc->list[fc->list[i].high].x,
posts[fc->list[i].high],
fc->list[i].x);
int highroom = range - predicted;
int lowroom = predicted;
int room = FFMIN(highroom, lowroom);
if (predicted == posts[i]) {
coded[i] = 0;
continue;
} else {
if (!coded[fc->list[i].low ]) coded[fc->list[i].low ] = -1;
if (!coded[fc->list[i].high]) coded[fc->list[i].high] = -1;
}
if (posts[i] > predicted) {
if (posts[i] - predicted > room)
coded[i] = posts[i] - predicted + lowroom;
else
coded[i] = (posts[i] - predicted) << 1;
} else {
if (predicted - posts[i] > room)
coded[i] = predicted - posts[i] + highroom - 1;
else
coded[i] = ((predicted - posts[i]) << 1) - 1;
}
}
counter = 2;
for (i = 0; i < fc->partitions; i++) {
floor_class_t * c = &fc->classes[fc->partition_to_class[i]];
int k, cval = 0, csub = 1<<c->subclass;
if (c->subclass) {
codebook_t * book = &venc->codebooks[c->masterbook];
int cshift = 0;
for (k = 0; k < c->dim; k++) {
int l;
for (l = 0; l < csub; l++) {
int maxval = 1;
if (c->books[l] != -1)
maxval = venc->codebooks[c->books[l]].nentries;
if (coded[counter + k] < maxval) break;
}
assert(l != csub);
cval |= l << cshift;
cshift += c->subclass;
}
put_codeword(pb, book, cval);
}
for (k = 0; k < c->dim; k++) {
int book = c->books[cval & (csub-1)];
int entry = coded[counter++];
cval >>= c->subclass;
if (book == -1) continue;
if (entry == -1) entry = 0;
put_codeword(pb, &venc->codebooks[book], entry);
}
}
ff_vorbis_floor1_render_list(fc->list, fc->values, posts, coded, fc->multiplier, floor, samples);
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/vorbis_enc.c/#L742 |
d2a_code_data_44392 | static int sab_diamond_search(MpegEncContext * s, int *best, int dmin,
int src_index, int ref_index, int const penalty_factor,
int size, int h, int flags)
{
MotionEstContext * const c= &s->me;
me_cmp_func cmpf, chroma_cmpf;
Minima minima[MAX_SAB_SIZE];
const int minima_count= FFABS(c->dia_size);
int i, j;
LOAD_COMMON
LOAD_COMMON2
int map_generation= c->map_generation;
cmpf= s->dsp.me_cmp[size];
chroma_cmpf= s->dsp.me_cmp[size+1];
for(j=i=0; i<ME_MAP_SIZE && j<MAX_SAB_SIZE; i++){
uint32_t key= map[i];
key += (1<<(ME_MAP_MV_BITS-1)) + (1<<(2*ME_MAP_MV_BITS-1));
if((key&((-1)<<(2*ME_MAP_MV_BITS))) != map_generation) continue;
minima[j].height= score_map[i];
minima[j].x= key & ((1<<ME_MAP_MV_BITS)-1); key>>=ME_MAP_MV_BITS;
minima[j].y= key & ((1<<ME_MAP_MV_BITS)-1);
minima[j].x-= (1<<(ME_MAP_MV_BITS-1));
minima[j].y-= (1<<(ME_MAP_MV_BITS-1));
if( minima[j].x > xmax || minima[j].x < xmin
|| minima[j].y > ymax || minima[j].y < ymin)
continue;
minima[j].checked=0;
if(minima[j].x || minima[j].y)
minima[j].height+= (mv_penalty[((minima[j].x)<<shift)-pred_x] + mv_penalty[((minima[j].y)<<shift)-pred_y])*penalty_factor;
j++;
}
qsort(minima, j, sizeof(Minima), minima_cmp);
for(; j<minima_count; j++){
minima[j].height=256*256*256*64;
minima[j].checked=0;
minima[j].x= minima[j].y=0;
}
for(i=0; i<minima_count; i++){
const int x= minima[i].x;
const int y= minima[i].y;
int d;
if(minima[i].checked) continue;
if( x >= xmax || x <= xmin
|| y >= ymax || y <= ymin)
continue;
SAB_CHECK_MV(x-1, y)
SAB_CHECK_MV(x+1, y)
SAB_CHECK_MV(x , y-1)
SAB_CHECK_MV(x , y+1)
minima[i].checked= 1;
}
best[0]= minima[0].x;
best[1]= minima[0].y;
dmin= minima[0].height;
if( best[0] < xmax && best[0] > xmin
&& best[1] < ymax && best[1] > ymin){
int d;
CHECK_MV(best[0]-1, best[1])
CHECK_MV(best[0]+1, best[1])
CHECK_MV(best[0], best[1]-1)
CHECK_MV(best[0], best[1]+1)
}
return dmin;
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/motion_est_template.c/#L890 |
d2a_code_data_44393 | BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
{
bn_check_top(b);
if (a == b)
return a;
if (bn_wexpand(a, b->top) == NULL)
return NULL;
if (b->top > 0)
memcpy(a->d, b->d, sizeof(b->d[0]) * b->top);
a->top = b->top;
a->neg = b->neg;
bn_check_top(a);
return a;
} | https://github.com/openssl/openssl/blob/b8c32081e02b7008a90d878eccce46da256dfe86/crypto/bn/bn_lib.c/#L295 |
d2a_code_data_44394 | static void slide(signed char *r, const uint8_t *a) {
int i;
int b;
int k;
for (i = 0; i < 256; ++i) {
r[i] = 1 & (a[i >> 3] >> (i & 7));
}
for (i = 0; i < 256; ++i) {
if (r[i]) {
for (b = 1; b <= 6 && i + b < 256; ++b) {
if (r[i + b]) {
if (r[i] + (r[i + b] << b) <= 15) {
r[i] += r[i + b] << b;
r[i + b] = 0;
} else if (r[i] - (r[i + b] << b) >= -15) {
r[i] -= r[i + b] << b;
for (k = i + b; k < 256; ++k) {
if (!r[k]) {
r[k] = 1;
break;
}
r[k] = 0;
}
} else {
break;
}
}
}
}
}
} | https://github.com/openssl/openssl/blob/04dec1ab34df70c1588d42cc394e8fa8b5f3191c/crypto/ec/curve25519.c/#L3600 |
d2a_code_data_44395 | static int encode_test_init(struct evp_test *t, const char *encoding)
{
struct encode_data *edata = OPENSSL_zalloc(sizeof(*edata));
if (strcmp(encoding, "canonical") == 0) {
edata->encoding = BASE64_CANONICAL_ENCODING;
} else if (strcmp(encoding, "valid") == 0) {
edata->encoding = BASE64_VALID_ENCODING;
} else if (strcmp(encoding, "invalid") == 0) {
edata->encoding = BASE64_INVALID_ENCODING;
t->expected_err = OPENSSL_strdup("DECODE_ERROR");
if (t->expected_err == NULL)
return 0;
} else {
fprintf(stderr, "Bad encoding: %s. Should be one of "
"{canonical, valid, invalid}\n", encoding);
return 0;
}
t->data = edata;
return 1;
} | https://github.com/openssl/openssl/blob/ec04e866343d40a1e3e8e5db79557e279a2dd0d8/test/evp_test.c/#L1561 |
d2a_code_data_44396 | DEFINE_RUN_ONCE_STATIC(do_load_builtin_compressions)
{
SSL_COMP *comp = NULL;
COMP_METHOD *method = COMP_zlib();
CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE);
ssl_comp_methods = sk_SSL_COMP_new(sk_comp_cmp);
if (COMP_get_type(method) != NID_undef && ssl_comp_methods != NULL) {
comp = OPENSSL_malloc(sizeof(*comp));
if (comp != NULL) {
comp->method = method;
comp->id = SSL_COMP_ZLIB_IDX;
comp->name = COMP_get_name(method);
sk_SSL_COMP_push(ssl_comp_methods, comp);
sk_SSL_COMP_sort(ssl_comp_methods);
}
}
CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE);
return 1;
} | https://github.com/openssl/openssl/blob/7f9ae88817ddf0aac5c6bd95d9a5af1c54ed5bbf/ssl/ssl_ciph.c/#L489 |
d2a_code_data_44397 | int ASN1_GENERALIZEDTIME_print(BIO *bp, const ASN1_GENERALIZEDTIME *tm)
{
char *v;
int gmt=0;
int i;
int y=0,M=0,d=0,h=0,m=0,s=0;
char *f = NULL;
int f_len = 0;
i=tm->length;
v=(char *)tm->data;
if (i < 12) goto err;
if (v[i-1] == 'Z') gmt=1;
for (i=0; i<12; i++)
if ((v[i] > '9') || (v[i] < '0')) goto err;
y= (v[0]-'0')*1000+(v[1]-'0')*100 + (v[2]-'0')*10+(v[3]-'0');
M= (v[4]-'0')*10+(v[5]-'0');
if ((M > 12) || (M < 1)) goto err;
d= (v[6]-'0')*10+(v[7]-'0');
h= (v[8]-'0')*10+(v[9]-'0');
m= (v[10]-'0')*10+(v[11]-'0');
if ( (v[12] >= '0') && (v[12] <= '9') &&
(v[13] >= '0') && (v[13] <= '9'))
{
s= (v[12]-'0')*10+(v[13]-'0');
if (v[14] == '.')
{
int l = tm->length;
f = &v[14];
f_len = 1;
while (14 + f_len < l && f[f_len] >= '0' && f[f_len] <= '9')
++f_len;
}
}
if (BIO_printf(bp,"%s %2d %02d:%02d:%02d%.*s %d%s",
mon[M-1],d,h,m,s,f_len,f,y,(gmt)?" GMT":"") <= 0)
return(0);
else
return(1);
err:
BIO_write(bp,"Bad time value",14);
return(0);
} | https://github.com/openssl/openssl/blob/985de8634000df9b33b8ac4519fa10a99e43b314/crypto/asn1/t_x509.c/#L389 |
d2a_code_data_44398 | int WPACKET_allocate_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
{
assert(pkt->subs != NULL && len != 0);
if (pkt->subs == NULL || len == 0)
return 0;
if (pkt->maxsize - pkt->written < len)
return 0;
if (pkt->buf->length - pkt->written < len) {
size_t newlen;
if (pkt->buf->length > SIZE_MAX / 2) {
newlen = SIZE_MAX;
} else {
newlen = (pkt->buf->length == 0) ? DEFAULT_BUF_SIZE
: pkt->buf->length * 2;
}
if (BUF_MEM_grow(pkt->buf, newlen) == 0)
return 0;
}
*allocbytes = (unsigned char *)pkt->buf->data + pkt->curr;
pkt->written += len;
pkt->curr += len;
return 1;
} | https://github.com/openssl/openssl/blob/84d5549e692e63a16fa1b11603e4098fc31746e9/ssl/packet.c/#L25 |
d2a_code_data_44399 | int X509_NAME_print(BIO *bp, X509_NAME *name, int obase)
{
char *s, *c, *b;
int l, i;
l = 80 - 2 - obase;
b = X509_NAME_oneline(name, NULL, 0);
if (!b)
return 0;
if (!*b) {
OPENSSL_free(b);
return 1;
}
s = b + 1;
c = s;
for (;;) {
#ifndef CHARSET_EBCDIC
if (((*s == '/') &&
((s[1] >= 'A') && (s[1] <= 'Z') && ((s[2] == '=') ||
((s[2] >= 'A')
&& (s[2] <= 'Z')
&& (s[3] == '='))
))) || (*s == '\0'))
#else
if (((*s == '/') &&
(isupper(s[1]) && ((s[2] == '=') ||
(isupper(s[2]) && (s[3] == '='))
))) || (*s == '\0'))
#endif
{
i = s - c;
if (BIO_write(bp, c, i) != i)
goto err;
c = s + 1;
if (*s != '\0') {
if (BIO_write(bp, ", ", 2) != 2)
goto err;
}
l--;
}
if (*s == '\0')
break;
s++;
l--;
}
OPENSSL_free(b);
return 1;
err:
X509err(X509_F_X509_NAME_PRINT, ERR_R_BUF_LIB);
OPENSSL_free(b);
return 0;
} | https://github.com/openssl/openssl/blob/24c2cd3967ed23acc0bd31a3781c4525e2e42a2c/crypto/x509/x_name.c/#L552 |
d2a_code_data_44400 | static int BN_from_montgomery_word(BIGNUM *ret, BIGNUM *r, BN_MONT_CTX *mont)
{
BIGNUM *n;
BN_ULONG *ap, *np, *rp, n0, v, carry;
int nl, max, i;
n = &(mont->N);
nl = n->top;
if (nl == 0) {
ret->top = 0;
return (1);
}
max = (2 * nl);
if (bn_wexpand(r, max) == NULL)
return (0);
r->neg ^= n->neg;
np = n->d;
rp = r->d;
i = max - r->top;
if (i)
memset(&rp[r->top], 0, sizeof(*rp) * i);
r->top = max;
n0 = mont->n0[0];
for (carry = 0, i = 0; i < nl; i++, rp++) {
v = bn_mul_add_words(rp, np, nl, (rp[0] * n0) & BN_MASK2);
v = (v + carry + rp[nl]) & BN_MASK2;
carry |= (v != rp[nl]);
carry &= (v <= rp[nl]);
rp[nl] = v;
}
if (bn_wexpand(ret, nl) == NULL)
return (0);
ret->top = nl;
ret->neg = r->neg;
rp = ret->d;
ap = &(r->d[nl]);
# define BRANCH_FREE 1
# if BRANCH_FREE
{
BN_ULONG *nrp;
size_t m;
v = bn_sub_words(rp, ap, np, nl) - carry;
m = (0 - (size_t)v);
nrp =
(BN_ULONG *)(((PTR_SIZE_INT) rp & ~m) | ((PTR_SIZE_INT) ap & m));
for (i = 0, nl -= 4; i < nl; i += 4) {
BN_ULONG t1, t2, t3, t4;
t1 = nrp[i + 0];
t2 = nrp[i + 1];
t3 = nrp[i + 2];
ap[i + 0] = 0;
t4 = nrp[i + 3];
ap[i + 1] = 0;
rp[i + 0] = t1;
ap[i + 2] = 0;
rp[i + 1] = t2;
ap[i + 3] = 0;
rp[i + 2] = t3;
rp[i + 3] = t4;
}
for (nl += 4; i < nl; i++)
rp[i] = nrp[i], ap[i] = 0;
}
# else
if (bn_sub_words(rp, ap, np, nl) - carry)
memcpy(rp, ap, nl * sizeof(BN_ULONG));
# endif
bn_correct_top(r);
bn_correct_top(ret);
bn_check_top(ret);
return (1);
} | https://github.com/openssl/openssl/blob/3f97052392cb10fca5309212bf720685262ad4a6/crypto/bn/bn_mont.c/#L106 |
d2a_code_data_44401 | static void update(Real288_internal *glob)
{
int x,y;
float buffer1[40],temp1[37];
float buffer2[8],temp2[11];
for (x=0,y=glob->phasep+5;x<40;buffer1[x++]=glob->output[(y++)%40]);
co(36,40,35,buffer1,temp1,glob->st1a,glob->st1b,table1);
if (pred(temp1,glob->st1,36))
colmult(glob->pr1,glob->st1,table1a,36);
for (x=0,y=glob->phase+1;x<8;buffer2[x++]=glob->history[(y++)%8]);
co(10,8,20,buffer2,temp2,glob->st2a,glob->st2b,table2);
if (pred(temp2,glob->st2,10))
colmult(glob->pr2,glob->st2,table2a,10);
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/ra288.c/#L79 |
d2a_code_data_44402 | static void mov_create_chapter_track(AVFormatContext *s, int tracknum)
{
MOVMuxContext *mov = s->priv_data;
MOVTrack *track = &mov->tracks[tracknum];
AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
int i, len;
track->mode = mov->mode;
track->tag = MKTAG('t','e','x','t');
track->timescale = MOV_TIMESCALE;
track->enc = avcodec_alloc_context3(NULL);
track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
for (i = 0; i < s->nb_chapters; i++) {
AVChapter *c = s->chapters[i];
AVDictionaryEntry *t;
int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
pkt.duration = end - pkt.dts;
if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
len = strlen(t->value);
pkt.size = len+2;
pkt.data = av_malloc(pkt.size);
AV_WB16(pkt.data, len);
memcpy(pkt.data+2, t->value, len);
ff_mov_write_packet(s, &pkt);
av_freep(&pkt.data);
}
}
} | https://github.com/libav/libav/blob/f53221049933627a31fb4a530c290802715ccf65/libavformat/movenc.c/#L2770 |
d2a_code_data_44403 | int is_partially_overlapping(const void *ptr1, const void *ptr2, int len)
{
PTRDIFF_T diff = (PTRDIFF_T)ptr1-(PTRDIFF_T)ptr2;
int overlapped = (len > 0) & (diff != 0) & ((diff < (PTRDIFF_T)len) |
(diff > (0 - (PTRDIFF_T)len)));
return overlapped;
} | https://github.com/openssl/openssl/blob/4086b42b2d58773bee8463f69eee4bf8c299b589/crypto/evp/evp_enc.c/#L288 |
d2a_code_data_44404 | static void decode_gain_and_index(QCELPContext *q,
float *gain) {
int i, subframes_count, g1[16];
float slope;
if(q->bitrate >= RATE_QUARTER)
{
switch(q->bitrate)
{
case RATE_FULL: subframes_count = 16; break;
case RATE_HALF: subframes_count = 4; break;
default: subframes_count = 5;
}
for(i=0; i<subframes_count; i++)
{
g1[i] = 4 * q->frame.cbgain[i];
if(q->bitrate == RATE_FULL && !((i+1) & 3))
{
g1[i] += av_clip((g1[i-1] + g1[i-2] + g1[i-3]) / 3 - 6, 0, 32);
}
gain[i] = qcelp_g12ga[g1[i]];
if(q->frame.cbsign[i])
{
gain[i] = -gain[i];
q->frame.cindex[i] = (q->frame.cindex[i]-89) & 127;
}
}
q->prev_g1[0] = g1[i-2];
q->prev_g1[1] = g1[i-1];
q->last_codebook_gain = qcelp_g12ga[g1[i-1]];
if(q->bitrate == RATE_QUARTER)
{
gain[7] = gain[4];
gain[6] = 0.4*gain[3] + 0.6*gain[4];
gain[5] = gain[3];
gain[4] = 0.8*gain[2] + 0.2*gain[3];
gain[3] = 0.2*gain[1] + 0.8*gain[2];
gain[2] = gain[1];
gain[1] = 0.6*gain[0] + 0.4*gain[1];
}
}else
{
if(q->bitrate == RATE_OCTAVE)
{
g1[0] = 2 * q->frame.cbgain[0]
+ av_clip((q->prev_g1[0] + q->prev_g1[1]) / 2 - 5, 0, 54);
subframes_count = 8;
}else
{
assert(q->bitrate == I_F_Q);
g1[0] = q->prev_g1[1];
switch(q->erasure_count)
{
case 1 : break;
case 2 : g1[0] -= 1; break;
case 3 : g1[0] -= 2; break;
default: g1[0] -= 6;
}
if(g1[0] < 0)
g1[0] = 0;
subframes_count = 4;
}
slope = 0.5*(qcelp_g12ga[g1[0]] - q->last_codebook_gain) / subframes_count;
for(i=1; i<=subframes_count; i++)
gain[i-1] = q->last_codebook_gain + slope * i;
q->last_codebook_gain = gain[i-2];
q->prev_g1[0] = q->prev_g1[1];
q->prev_g1[1] = g1[0];
}
} | https://github.com/libav/libav/blob/ce60c2d133876b2878b724cb512b81d4a149c72e/libavcodec/qcelpdec.c/#L233 |
d2a_code_data_44405 | static inline void pred_direct_motion(H264Context * const h, int *mb_type){
MpegEncContext * const s = &h->s;
const int mb_xy = s->mb_x + s->mb_y*s->mb_stride;
const int b8_xy = 2*s->mb_x + 2*s->mb_y*h->b8_stride;
const int b4_xy = 4*s->mb_x + 4*s->mb_y*h->b_stride;
const int mb_type_col = h->ref_list[1][0].mb_type[mb_xy];
const int16_t (*l1mv0)[2] = (const int16_t (*)[2]) &h->ref_list[1][0].motion_val[0][b4_xy];
const int16_t (*l1mv1)[2] = (const int16_t (*)[2]) &h->ref_list[1][0].motion_val[1][b4_xy];
const int8_t *l1ref0 = &h->ref_list[1][0].ref_index[0][b8_xy];
const int8_t *l1ref1 = &h->ref_list[1][0].ref_index[1][b8_xy];
const int is_b8x8 = IS_8X8(*mb_type);
unsigned int sub_mb_type;
int i8, i4;
#define MB_TYPE_16x16_OR_INTRA (MB_TYPE_16x16|MB_TYPE_INTRA4x4|MB_TYPE_INTRA16x16|MB_TYPE_INTRA_PCM)
if(IS_8X8(mb_type_col) && !h->sps.direct_8x8_inference_flag){
sub_mb_type = MB_TYPE_8x8|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2;
*mb_type = MB_TYPE_8x8|MB_TYPE_L0L1;
}else if(!is_b8x8 && (mb_type_col & MB_TYPE_16x16_OR_INTRA)){
sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2;
*mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2;
}else{
sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2;
*mb_type = MB_TYPE_8x8|MB_TYPE_L0L1;
}
if(!is_b8x8)
*mb_type |= MB_TYPE_DIRECT2;
if(MB_FIELD)
*mb_type |= MB_TYPE_INTERLACED;
tprintf(s->avctx, "mb_type = %08x, sub_mb_type = %08x, is_b8x8 = %d, mb_type_col = %08x\n", *mb_type, sub_mb_type, is_b8x8, mb_type_col);
if(h->direct_spatial_mv_pred){
int ref[2];
int mv[2][2];
int list;
for(list=0; list<2; list++){
int refa = h->ref_cache[list][scan8[0] - 1];
int refb = h->ref_cache[list][scan8[0] - 8];
int refc = h->ref_cache[list][scan8[0] - 8 + 4];
if(refc == -2)
refc = h->ref_cache[list][scan8[0] - 8 - 1];
ref[list] = refa;
if(ref[list] < 0 || (refb < ref[list] && refb >= 0))
ref[list] = refb;
if(ref[list] < 0 || (refc < ref[list] && refc >= 0))
ref[list] = refc;
if(ref[list] < 0)
ref[list] = -1;
}
if(ref[0] < 0 && ref[1] < 0){
ref[0] = ref[1] = 0;
mv[0][0] = mv[0][1] =
mv[1][0] = mv[1][1] = 0;
}else{
for(list=0; list<2; list++){
if(ref[list] >= 0)
pred_motion(h, 0, 4, list, ref[list], &mv[list][0], &mv[list][1]);
else
mv[list][0] = mv[list][1] = 0;
}
}
if(ref[1] < 0){
if(!is_b8x8)
*mb_type &= ~MB_TYPE_L1;
sub_mb_type &= ~MB_TYPE_L1;
}else if(ref[0] < 0){
if(!is_b8x8)
*mb_type &= ~MB_TYPE_L0;
sub_mb_type &= ~MB_TYPE_L0;
}
if(IS_INTERLACED(*mb_type) != IS_INTERLACED(mb_type_col)){
int pair_xy = s->mb_x + (s->mb_y&~1)*s->mb_stride;
int mb_types_col[2];
int b8_stride = h->b8_stride;
int b4_stride = h->b_stride;
*mb_type = (*mb_type & ~MB_TYPE_16x16) | MB_TYPE_8x8;
if(IS_INTERLACED(*mb_type)){
mb_types_col[0] = h->ref_list[1][0].mb_type[pair_xy];
mb_types_col[1] = h->ref_list[1][0].mb_type[pair_xy+s->mb_stride];
if(s->mb_y&1){
l1ref0 -= 2*b8_stride;
l1ref1 -= 2*b8_stride;
l1mv0 -= 4*b4_stride;
l1mv1 -= 4*b4_stride;
}
b8_stride *= 3;
b4_stride *= 6;
}else{
int cur_poc = s->current_picture_ptr->poc;
int *col_poc = h->ref_list[1]->field_poc;
int col_parity = FFABS(col_poc[0] - cur_poc) >= FFABS(col_poc[1] - cur_poc);
int dy = 2*col_parity - (s->mb_y&1);
mb_types_col[0] =
mb_types_col[1] = h->ref_list[1][0].mb_type[pair_xy + col_parity*s->mb_stride];
l1ref0 += dy*b8_stride;
l1ref1 += dy*b8_stride;
l1mv0 += 2*dy*b4_stride;
l1mv1 += 2*dy*b4_stride;
b8_stride = 0;
}
for(i8=0; i8<4; i8++){
int x8 = i8&1;
int y8 = i8>>1;
int xy8 = x8+y8*b8_stride;
int xy4 = 3*x8+y8*b4_stride;
int a=0, b=0;
if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
continue;
h->sub_mb_type[i8] = sub_mb_type;
fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[0], 1);
fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[1], 1);
if(!IS_INTRA(mb_types_col[y8])
&& ( (l1ref0[xy8] == 0 && FFABS(l1mv0[xy4][0]) <= 1 && FFABS(l1mv0[xy4][1]) <= 1)
|| (l1ref0[xy8] < 0 && l1ref1[xy8] == 0 && FFABS(l1mv1[xy4][0]) <= 1 && FFABS(l1mv1[xy4][1]) <= 1))){
if(ref[0] > 0)
a= pack16to32(mv[0][0],mv[0][1]);
if(ref[1] > 0)
b= pack16to32(mv[1][0],mv[1][1]);
}else{
a= pack16to32(mv[0][0],mv[0][1]);
b= pack16to32(mv[1][0],mv[1][1]);
}
fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, a, 4);
fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, b, 4);
}
}else if(IS_16X16(*mb_type)){
int a=0, b=0;
fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, (uint8_t)ref[0], 1);
fill_rectangle(&h->ref_cache[1][scan8[0]], 4, 4, 8, (uint8_t)ref[1], 1);
if(!IS_INTRA(mb_type_col)
&& ( (l1ref0[0] == 0 && FFABS(l1mv0[0][0]) <= 1 && FFABS(l1mv0[0][1]) <= 1)
|| (l1ref0[0] < 0 && l1ref1[0] == 0 && FFABS(l1mv1[0][0]) <= 1 && FFABS(l1mv1[0][1]) <= 1
&& (h->x264_build>33 || !h->x264_build)))){
if(ref[0] > 0)
a= pack16to32(mv[0][0],mv[0][1]);
if(ref[1] > 0)
b= pack16to32(mv[1][0],mv[1][1]);
}else{
a= pack16to32(mv[0][0],mv[0][1]);
b= pack16to32(mv[1][0],mv[1][1]);
}
fill_rectangle(&h->mv_cache[0][scan8[0]], 4, 4, 8, a, 4);
fill_rectangle(&h->mv_cache[1][scan8[0]], 4, 4, 8, b, 4);
}else{
for(i8=0; i8<4; i8++){
const int x8 = i8&1;
const int y8 = i8>>1;
if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
continue;
h->sub_mb_type[i8] = sub_mb_type;
fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, pack16to32(mv[0][0],mv[0][1]), 4);
fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, pack16to32(mv[1][0],mv[1][1]), 4);
fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[0], 1);
fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[1], 1);
if(!IS_INTRA(mb_type_col) && ( l1ref0[x8 + y8*h->b8_stride] == 0
|| (l1ref0[x8 + y8*h->b8_stride] < 0 && l1ref1[x8 + y8*h->b8_stride] == 0
&& (h->x264_build>33 || !h->x264_build)))){
const int16_t (*l1mv)[2]= l1ref0[x8 + y8*h->b8_stride] == 0 ? l1mv0 : l1mv1;
if(IS_SUB_8X8(sub_mb_type)){
const int16_t *mv_col = l1mv[x8*3 + y8*3*h->b_stride];
if(FFABS(mv_col[0]) <= 1 && FFABS(mv_col[1]) <= 1){
if(ref[0] == 0)
fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, 0, 4);
if(ref[1] == 0)
fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, 0, 4);
}
}else
for(i4=0; i4<4; i4++){
const int16_t *mv_col = l1mv[x8*2 + (i4&1) + (y8*2 + (i4>>1))*h->b_stride];
if(FFABS(mv_col[0]) <= 1 && FFABS(mv_col[1]) <= 1){
if(ref[0] == 0)
*(uint32_t*)h->mv_cache[0][scan8[i8*4+i4]] = 0;
if(ref[1] == 0)
*(uint32_t*)h->mv_cache[1][scan8[i8*4+i4]] = 0;
}
}
}
}
}
}else{
const int *map_col_to_list0[2] = {h->map_col_to_list0[0], h->map_col_to_list0[1]};
const int *dist_scale_factor = h->dist_scale_factor;
if(FRAME_MBAFF){
if(IS_INTERLACED(*mb_type)){
map_col_to_list0[0] = h->map_col_to_list0_field[0];
map_col_to_list0[1] = h->map_col_to_list0_field[1];
dist_scale_factor = h->dist_scale_factor_field;
}
if(IS_INTERLACED(*mb_type) != IS_INTERLACED(mb_type_col)){
const int pair_xy = s->mb_x + (s->mb_y&~1)*s->mb_stride;
int mb_types_col[2];
int y_shift;
*mb_type = MB_TYPE_8x8|MB_TYPE_L0L1
| (is_b8x8 ? 0 : MB_TYPE_DIRECT2)
| (*mb_type & MB_TYPE_INTERLACED);
sub_mb_type = MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2|MB_TYPE_16x16;
if(IS_INTERLACED(*mb_type)){
mb_types_col[0] = h->ref_list[1][0].mb_type[pair_xy];
mb_types_col[1] = h->ref_list[1][0].mb_type[pair_xy+s->mb_stride];
if(s->mb_y&1){
l1ref0 -= 2*h->b8_stride;
l1ref1 -= 2*h->b8_stride;
l1mv0 -= 4*h->b_stride;
l1mv1 -= 4*h->b_stride;
}
y_shift = 0;
if( (mb_types_col[0] & MB_TYPE_16x16_OR_INTRA)
&& (mb_types_col[1] & MB_TYPE_16x16_OR_INTRA)
&& !is_b8x8)
*mb_type |= MB_TYPE_16x8;
else
*mb_type |= MB_TYPE_8x8;
}else{
int dy = (s->mb_y&1) ? 1 : 2;
mb_types_col[0] =
mb_types_col[1] = h->ref_list[1][0].mb_type[pair_xy+s->mb_stride];
l1ref0 += dy*h->b8_stride;
l1ref1 += dy*h->b8_stride;
l1mv0 += 2*dy*h->b_stride;
l1mv1 += 2*dy*h->b_stride;
y_shift = 2;
if((mb_types_col[0] & (MB_TYPE_16x16_OR_INTRA|MB_TYPE_16x8))
&& !is_b8x8)
*mb_type |= MB_TYPE_16x16;
else
*mb_type |= MB_TYPE_8x8;
}
for(i8=0; i8<4; i8++){
const int x8 = i8&1;
const int y8 = i8>>1;
int ref0, scale;
const int16_t (*l1mv)[2]= l1mv0;
if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
continue;
h->sub_mb_type[i8] = sub_mb_type;
fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, 0, 1);
if(IS_INTRA(mb_types_col[y8])){
fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, 0, 1);
fill_rectangle(&h-> mv_cache[0][scan8[i8*4]], 2, 2, 8, 0, 4);
fill_rectangle(&h-> mv_cache[1][scan8[i8*4]], 2, 2, 8, 0, 4);
continue;
}
ref0 = l1ref0[x8 + (y8*2>>y_shift)*h->b8_stride];
if(ref0 >= 0)
ref0 = map_col_to_list0[0][ref0*2>>y_shift];
else{
ref0 = map_col_to_list0[1][l1ref1[x8 + (y8*2>>y_shift)*h->b8_stride]*2>>y_shift];
l1mv= l1mv1;
}
scale = dist_scale_factor[ref0];
fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, ref0, 1);
{
const int16_t *mv_col = l1mv[x8*3 + (y8*6>>y_shift)*h->b_stride];
int my_col = (mv_col[1]<<y_shift)/2;
int mx = (scale * mv_col[0] + 128) >> 8;
int my = (scale * my_col + 128) >> 8;
fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, pack16to32(mx,my), 4);
fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, pack16to32(mx-mv_col[0],my-my_col), 4);
}
}
return;
}
}
if(IS_16X16(*mb_type)){
int ref, mv0, mv1;
fill_rectangle(&h->ref_cache[1][scan8[0]], 4, 4, 8, 0, 1);
if(IS_INTRA(mb_type_col)){
ref=mv0=mv1=0;
}else{
const int ref0 = l1ref0[0] >= 0 ? map_col_to_list0[0][l1ref0[0]]
: map_col_to_list0[1][l1ref1[0]];
const int scale = dist_scale_factor[ref0];
const int16_t *mv_col = l1ref0[0] >= 0 ? l1mv0[0] : l1mv1[0];
int mv_l0[2];
mv_l0[0] = (scale * mv_col[0] + 128) >> 8;
mv_l0[1] = (scale * mv_col[1] + 128) >> 8;
ref= ref0;
mv0= pack16to32(mv_l0[0],mv_l0[1]);
mv1= pack16to32(mv_l0[0]-mv_col[0],mv_l0[1]-mv_col[1]);
}
fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, ref, 1);
fill_rectangle(&h-> mv_cache[0][scan8[0]], 4, 4, 8, mv0, 4);
fill_rectangle(&h-> mv_cache[1][scan8[0]], 4, 4, 8, mv1, 4);
}else{
for(i8=0; i8<4; i8++){
const int x8 = i8&1;
const int y8 = i8>>1;
int ref0, scale;
const int16_t (*l1mv)[2]= l1mv0;
if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
continue;
h->sub_mb_type[i8] = sub_mb_type;
fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, 0, 1);
if(IS_INTRA(mb_type_col)){
fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, 0, 1);
fill_rectangle(&h-> mv_cache[0][scan8[i8*4]], 2, 2, 8, 0, 4);
fill_rectangle(&h-> mv_cache[1][scan8[i8*4]], 2, 2, 8, 0, 4);
continue;
}
ref0 = l1ref0[x8 + y8*h->b8_stride];
if(ref0 >= 0)
ref0 = map_col_to_list0[0][ref0];
else{
ref0 = map_col_to_list0[1][l1ref1[x8 + y8*h->b8_stride]];
l1mv= l1mv1;
}
scale = dist_scale_factor[ref0];
fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, ref0, 1);
if(IS_SUB_8X8(sub_mb_type)){
const int16_t *mv_col = l1mv[x8*3 + y8*3*h->b_stride];
int mx = (scale * mv_col[0] + 128) >> 8;
int my = (scale * mv_col[1] + 128) >> 8;
fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, pack16to32(mx,my), 4);
fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, pack16to32(mx-mv_col[0],my-mv_col[1]), 4);
}else
for(i4=0; i4<4; i4++){
const int16_t *mv_col = l1mv[x8*2 + (i4&1) + (y8*2 + (i4>>1))*h->b_stride];
int16_t *mv_l0 = h->mv_cache[0][scan8[i8*4+i4]];
mv_l0[0] = (scale * mv_col[0] + 128) >> 8;
mv_l0[1] = (scale * mv_col[1] + 128) >> 8;
*(uint32_t*)h->mv_cache[1][scan8[i8*4+i4]] =
pack16to32(mv_l0[0]-mv_col[0],mv_l0[1]-mv_col[1]);
}
}
}
}
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/h264.c/#L1079 |
d2a_code_data_44406 | unsigned char *next_protos_parse(size_t *outlen, const char *in)
{
size_t len;
unsigned char *out;
size_t i, start = 0;
len = strlen(in);
if (len >= 65535)
return NULL;
out = app_malloc(strlen(in) + 1, "NPN buffer");
for (i = 0; i <= len; ++i) {
if (i == len || in[i] == ',') {
if (i - start > 255) {
OPENSSL_free(out);
return NULL;
}
out[start] = (unsigned char)(i - start);
start = i + 1;
} else {
out[i + 1] = in[i];
}
}
*outlen = len + 1;
return out;
} | https://github.com/openssl/openssl/blob/d3620841cc39aaa4a3d75ea32e94ccd110b5bef4/apps/apps.c/#L1812 |
d2a_code_data_44407 | static inline uint64_t get_val(BitstreamContext *bc, unsigned n)
{
#ifdef BITSTREAM_READER_LE
uint64_t ret = bc->bits & ((UINT64_C(1) << n) - 1);
bc->bits >>= n;
#else
uint64_t ret = bc->bits >> (64 - n);
bc->bits <<= n;
#endif
bc->bits_left -= n;
return ret;
} | https://github.com/libav/libav/blob/562ef82d6a7f96f6b9da1219a5aaf7d9d7056f1b/libavcodec/bitstream.h/#L139 |
d2a_code_data_44408 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | https://github.com/openssl/openssl/blob/18e1e302452e6dea4500b6f981cee7e151294dea/crypto/bn/bn_ctx.c/#L268 |
d2a_code_data_44409 | static int pbe_test_init(EVP_TEST *t, const char *alg)
{
PBE_DATA *pdat;
int pbe_type = 0;
if (strcmp(alg, "scrypt") == 0) {
#ifndef OPENSSL_NO_SCRYPT
pbe_type = PBE_TYPE_SCRYPT;
#else
t->skip = 1;
return 1;
#endif
} else if (strcmp(alg, "pbkdf2") == 0) {
pbe_type = PBE_TYPE_PBKDF2;
} else if (strcmp(alg, "pkcs12") == 0) {
pbe_type = PBE_TYPE_PKCS12;
} else {
TEST_error("Unknown pbe algorithm %s", alg);
}
pdat = OPENSSL_malloc(sizeof(*pdat));
pdat->pbe_type = pbe_type;
pdat->pass = NULL;
pdat->salt = NULL;
pdat->N = 0;
pdat->r = 0;
pdat->p = 0;
pdat->maxmem = 0;
pdat->id = 0;
pdat->iter = 0;
pdat->md = NULL;
t->data = pdat;
return 1;
} | https://github.com/openssl/openssl/blob/69b4c01fd26e6eb72b156ed3014522c3295a7669/test/evp_test.c/#L1641 |
d2a_code_data_44410 | void avfilter_unref_buffer(AVFilterBufferRef *ref)
{
if(!(--ref->buf->refcount))
ref->buf->free(ref->buf);
av_free(ref->video);
av_free(ref);
} | https://github.com/libav/libav/blob/ad0d70c964f852a18e9ab8124f0e7aa8876cac6e/libavfilter/avfilter.c/#L63 |
d2a_code_data_44411 | static void doall_util_fn(OPENSSL_LHASH *lh, int use_arg,
OPENSSL_LH_DOALL_FUNC func,
OPENSSL_LH_DOALL_FUNCARG func_arg, void *arg)
{
int i;
OPENSSL_LH_NODE *a, *n;
if (lh == NULL)
return;
for (i = lh->num_nodes - 1; i >= 0; i--) {
a = lh->b[i];
while (a != NULL) {
n = a->next;
if (use_arg)
func_arg(a->data, arg);
else
func(a->data);
a = n;
}
}
} | https://github.com/openssl/openssl/blob/6e68dae85a8f91944370125561c7ec0d5da46c20/crypto/lhash/lhash.c/#L191 |
d2a_code_data_44412 | static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
{
BN_ULONG *a = NULL;
bn_check_top(b);
if (words > (INT_MAX / (4 * BN_BITS2))) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);
return NULL;
}
if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);
return (NULL);
}
if (BN_get_flags(b, BN_FLG_SECURE))
a = OPENSSL_secure_zalloc(words * sizeof(*a));
else
a = OPENSSL_zalloc(words * sizeof(*a));
if (a == NULL) {
BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);
return (NULL);
}
assert(b->top <= words);
if (b->top > 0)
memcpy(a, b->d, sizeof(*a) * b->top);
return a;
} | https://github.com/openssl/openssl/blob/757264207ad8650a89ea903d48ad89f61d56ea9c/crypto/bn/bn_lib.c/#L271 |
d2a_code_data_44413 | u_char *
ngx_vsnprintf(u_char *buf, size_t max, const char *fmt, va_list args)
{
u_char *p, zero, *last;
int d;
float f, scale;
size_t len, slen;
int64_t i64;
uint64_t ui64;
ngx_msec_t ms;
ngx_uint_t width, sign, hex, max_width, frac_width, i;
ngx_str_t *v;
ngx_variable_value_t *vv;
if (max == 0) {
return buf;
}
last = buf + max;
while (*fmt && buf < last) {
if (*fmt == '%') {
i64 = 0;
ui64 = 0;
zero = (u_char) ((*++fmt == '0') ? '0' : ' ');
width = 0;
sign = 1;
hex = 0;
max_width = 0;
frac_width = 0;
slen = (size_t) -1;
while (*fmt >= '0' && *fmt <= '9') {
width = width * 10 + *fmt++ - '0';
}
for ( ;; ) {
switch (*fmt) {
case 'u':
sign = 0;
fmt++;
continue;
case 'm':
max_width = 1;
fmt++;
continue;
case 'X':
hex = 2;
sign = 0;
fmt++;
continue;
case 'x':
hex = 1;
sign = 0;
fmt++;
continue;
case '.':
fmt++;
while (*fmt >= '0' && *fmt <= '9') {
frac_width = frac_width * 10 + *fmt++ - '0';
}
break;
case '*':
slen = va_arg(args, size_t);
fmt++;
continue;
default:
break;
}
break;
}
switch (*fmt) {
case 'V':
v = va_arg(args, ngx_str_t *);
len = v->len;
len = (buf + len < last) ? len : (size_t) (last - buf);
buf = ngx_cpymem(buf, v->data, len);
fmt++;
continue;
case 'v':
vv = va_arg(args, ngx_variable_value_t *);
len = vv->len;
len = (buf + len < last) ? len : (size_t) (last - buf);
buf = ngx_cpymem(buf, vv->data, len);
fmt++;
continue;
case 's':
p = va_arg(args, u_char *);
if (slen == (size_t) -1) {
while (*p && buf < last) {
*buf++ = *p++;
}
} else {
len = (buf + slen < last) ? slen : (size_t) (last - buf);
buf = ngx_cpymem(buf, p, len);
}
fmt++;
continue;
case 'O':
i64 = (int64_t) va_arg(args, off_t);
sign = 1;
break;
case 'P':
i64 = (int64_t) va_arg(args, ngx_pid_t);
sign = 1;
break;
case 'T':
i64 = (int64_t) va_arg(args, time_t);
sign = 1;
break;
case 'M':
ms = (ngx_msec_t) va_arg(args, ngx_msec_t);
if ((ngx_msec_int_t) ms == -1) {
sign = 1;
i64 = -1;
} else {
sign = 0;
ui64 = (uint64_t) ms;
}
break;
case 'z':
if (sign) {
i64 = (int64_t) va_arg(args, ssize_t);
} else {
ui64 = (uint64_t) va_arg(args, size_t);
}
break;
case 'i':
if (sign) {
i64 = (int64_t) va_arg(args, ngx_int_t);
} else {
ui64 = (uint64_t) va_arg(args, ngx_uint_t);
}
if (max_width) {
width = NGX_INT_T_LEN;
}
break;
case 'd':
if (sign) {
i64 = (int64_t) va_arg(args, int);
} else {
ui64 = (uint64_t) va_arg(args, u_int);
}
break;
case 'l':
if (sign) {
i64 = (int64_t) va_arg(args, long);
} else {
ui64 = (uint64_t) va_arg(args, u_long);
}
break;
case 'D':
if (sign) {
i64 = (int64_t) va_arg(args, int32_t);
} else {
ui64 = (uint64_t) va_arg(args, uint32_t);
}
break;
case 'L':
if (sign) {
i64 = va_arg(args, int64_t);
} else {
ui64 = va_arg(args, uint64_t);
}
break;
case 'A':
if (sign) {
i64 = (int64_t) va_arg(args, ngx_atomic_int_t);
} else {
ui64 = (uint64_t) va_arg(args, ngx_atomic_uint_t);
}
if (max_width) {
width = NGX_ATOMIC_T_LEN;
}
break;
case 'f':
f = (float) va_arg(args, double);
if (f < 0) {
*buf++ = '-';
f = -f;
}
ui64 = (int64_t) f;
buf = ngx_sprintf_num(buf, last, ui64, zero, 0, width);
if (frac_width) {
if (buf < last) {
*buf++ = '.';
}
scale = 1.0;
for (i = 0; i < frac_width; i++) {
scale *= 10.0;
}
ui64 = (uint64_t) ((f - (int64_t) ui64) * scale);
buf = ngx_sprintf_num(buf, last, ui64, '0', 0, frac_width);
}
fmt++;
continue;
#if !(NGX_WIN32)
case 'r':
i64 = (int64_t) va_arg(args, rlim_t);
sign = 1;
break;
#endif
case 'p':
ui64 = (uintptr_t) va_arg(args, void *);
hex = 2;
sign = 0;
zero = '0';
width = NGX_PTR_SIZE * 2;
break;
case 'c':
d = va_arg(args, int);
*buf++ = (u_char) (d & 0xff);
fmt++;
continue;
case 'Z':
*buf++ = '\0';
fmt++;
continue;
case 'N':
#if (NGX_WIN32)
*buf++ = CR;
#endif
*buf++ = LF;
fmt++;
continue;
case '%':
*buf++ = '%';
fmt++;
continue;
default:
*buf++ = *fmt++;
continue;
}
if (sign) {
if (i64 < 0) {
*buf++ = '-';
ui64 = (uint64_t) -i64;
} else {
ui64 = (uint64_t) i64;
}
}
buf = ngx_sprintf_num(buf, last, ui64, zero, hex, width);
fmt++;
} else {
*buf++ = *fmt++;
}
}
return buf;
} | https://github.com/nginx/nginx/blob/e4ecddfdb0d2ffc872658e36028971ad9a873726/src/core/ngx_string.c/#L244 |
d2a_code_data_44414 | void CRYPTO_gcm128_tag(GCM128_CONTEXT *ctx, unsigned char *tag, size_t len)
{
CRYPTO_gcm128_finish(ctx, NULL, 0);
memcpy(tag, ctx->Xi.c, len<=sizeof(ctx->Xi.c)?len:sizeof(ctx->Xi.c));
} | https://github.com/openssl/openssl/blob/f4001a0d192a2462bcedbaadf95e778ddc352ebb/crypto/modes/gcm128.c/#L1379 |
d2a_code_data_44415 | void *OPENSSL_LH_delete(OPENSSL_LHASH *lh, const void *data)
{
unsigned long hash;
OPENSSL_LH_NODE *nn, **rn;
void *ret;
lh->error = 0;
rn = getrn(lh, data, &hash);
if (*rn == NULL) {
lh->num_no_delete++;
return (NULL);
} else {
nn = *rn;
*rn = nn->next;
ret = nn->data;
OPENSSL_free(nn);
lh->num_delete++;
}
lh->num_items--;
if ((lh->num_nodes > MIN_NODES) &&
(lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))
contract(lh);
return (ret);
} | https://github.com/openssl/openssl/blob/2a7de0fd5d9baf946ef4d2c51096b04dd47a8143/crypto/lhash/lhash.c/#L123 |
d2a_code_data_44416 | static void opt_output_file(void *optctx, const char *filename)
{
OptionsContext *o = optctx;
AVFormatContext *oc;
int i, err;
AVOutputFormat *file_oformat;
OutputStream *ost;
InputStream *ist;
if (!strcmp(filename, "-"))
filename = "pipe:";
oc = avformat_alloc_context();
if (!oc) {
print_error(filename, AVERROR(ENOMEM));
exit_program(1);
}
if (o->format) {
file_oformat = av_guess_format(o->format, NULL, NULL);
if (!file_oformat) {
av_log(NULL, AV_LOG_FATAL, "Requested output format '%s' is not a suitable output format\n", o->format);
exit_program(1);
}
} else {
file_oformat = av_guess_format(NULL, filename, NULL);
if (!file_oformat) {
av_log(NULL, AV_LOG_FATAL, "Unable to find a suitable output format for '%s'\n",
filename);
exit_program(1);
}
}
oc->oformat = file_oformat;
av_strlcpy(oc->filename, filename, sizeof(oc->filename));
if (!strcmp(file_oformat->name, "ffm") &&
av_strstart(filename, "http:", NULL)) {
int err = read_avserver_streams(o, oc, filename);
if (err < 0) {
print_error(filename, err);
exit_program(1);
}
} else if (!o->nb_stream_maps) {
#define NEW_STREAM(type, index)\
if (index >= 0) {\
ost = new_ ## type ## _stream(o, oc);\
ost->source_index = index;\
ost->sync_ist = &input_streams[index];\
input_streams[index].discard = 0;\
}
if (!o->video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
int area = 0, idx = -1;
for (i = 0; i < nb_input_streams; i++) {
ist = &input_streams[i];
if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
ist->st->codec->width * ist->st->codec->height > area) {
area = ist->st->codec->width * ist->st->codec->height;
idx = i;
}
}
NEW_STREAM(video, idx);
}
if (!o->audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
int channels = 0, idx = -1;
for (i = 0; i < nb_input_streams; i++) {
ist = &input_streams[i];
if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
ist->st->codec->channels > channels) {
channels = ist->st->codec->channels;
idx = i;
}
}
NEW_STREAM(audio, idx);
}
if (!o->subtitle_disable && oc->oformat->subtitle_codec != CODEC_ID_NONE) {
for (i = 0; i < nb_input_streams; i++)
if (input_streams[i].st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
NEW_STREAM(subtitle, i);
break;
}
}
} else {
for (i = 0; i < o->nb_stream_maps; i++) {
StreamMap *map = &o->stream_maps[i];
if (map->disabled)
continue;
ist = &input_streams[input_files[map->file_index].ist_index + map->stream_index];
switch (ist->st->codec->codec_type) {
case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc); break;
case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc); break;
case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(o, oc); break;
case AVMEDIA_TYPE_DATA: ost = new_data_stream(o, oc); break;
case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc); break;
default:
av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
map->file_index, map->stream_index);
exit_program(1);
}
ost->source_index = input_files[map->file_index].ist_index + map->stream_index;
ost->sync_ist = &input_streams[input_files[map->sync_file_index].ist_index +
map->sync_stream_index];
ist->discard = 0;
}
}
for (i = 0; i < o->nb_attachments; i++) {
AVIOContext *pb;
uint8_t *attachment;
const char *p;
int64_t len;
if ((err = avio_open(&pb, o->attachments[i], AVIO_FLAG_READ)) < 0) {
av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
o->attachments[i]);
exit_program(1);
}
if ((len = avio_size(pb)) <= 0) {
av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
o->attachments[i]);
exit_program(1);
}
if (!(attachment = av_malloc(len))) {
av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
o->attachments[i]);
exit_program(1);
}
avio_read(pb, attachment, len);
ost = new_attachment_stream(o, oc);
ost->stream_copy = 0;
ost->source_index = -1;
ost->attachment_filename = o->attachments[i];
ost->st->codec->extradata = attachment;
ost->st->codec->extradata_size = len;
p = strrchr(o->attachments[i], '/');
av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
avio_close(pb);
}
output_files = grow_array(output_files, sizeof(*output_files), &nb_output_files, nb_output_files + 1);
output_files[nb_output_files - 1].ctx = oc;
output_files[nb_output_files - 1].ost_index = nb_output_streams - oc->nb_streams;
output_files[nb_output_files - 1].recording_time = o->recording_time;
output_files[nb_output_files - 1].start_time = o->start_time;
output_files[nb_output_files - 1].limit_filesize = o->limit_filesize;
av_dict_copy(&output_files[nb_output_files - 1].opts, format_opts, 0);
if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
if (!av_filename_number_test(oc->filename)) {
print_error(oc->filename, AVERROR(EINVAL));
exit_program(1);
}
}
if (!(oc->oformat->flags & AVFMT_NOFILE)) {
assert_file_overwrite(filename);
if ((err = avio_open(&oc->pb, filename, AVIO_FLAG_WRITE)) < 0) {
print_error(filename, err);
exit_program(1);
}
}
if (o->mux_preload) {
uint8_t buf[64];
snprintf(buf, sizeof(buf), "%d", (int)(o->mux_preload*AV_TIME_BASE));
av_dict_set(&output_files[nb_output_files - 1].opts, "preload", buf, 0);
}
oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
oc->flags |= AVFMT_FLAG_NONBLOCK;
if (o->chapters_input_file >= nb_input_files) {
if (o->chapters_input_file == INT_MAX) {
o->chapters_input_file = -1;
for (i = 0; i < nb_input_files; i++)
if (input_files[i].ctx->nb_chapters) {
o->chapters_input_file = i;
break;
}
} else {
av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
o->chapters_input_file);
exit_program(1);
}
}
if (o->chapters_input_file >= 0)
copy_chapters(&input_files[o->chapters_input_file], &output_files[nb_output_files - 1],
!o->metadata_chapters_manual);
for (i = 0; i < o->nb_meta_data_maps; i++) {
AVFormatContext *files[2];
AVDictionary **meta[2];
int j;
#define METADATA_CHECK_INDEX(index, nb_elems, desc)\
if ((index) < 0 || (index) >= (nb_elems)) {\
av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps\n",\
(desc), (index));\
exit_program(1);\
}
int in_file_index = o->meta_data_maps[i][1].file;
if (in_file_index < 0)
continue;
METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
files[0] = oc;
files[1] = input_files[in_file_index].ctx;
for (j = 0; j < 2; j++) {
MetadataMap *map = &o->meta_data_maps[i][j];
switch (map->type) {
case 'g':
meta[j] = &files[j]->metadata;
break;
case 's':
METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
meta[j] = &files[j]->streams[map->index]->metadata;
break;
case 'c':
METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
meta[j] = &files[j]->chapters[map->index]->metadata;
break;
case 'p':
METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
meta[j] = &files[j]->programs[map->index]->metadata;
break;
}
}
av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
}
if (!o->metadata_global_manual && nb_input_files)
av_dict_copy(&oc->metadata, input_files[0].ctx->metadata,
AV_DICT_DONT_OVERWRITE);
if (!o->metadata_streams_manual)
for (i = output_files[nb_output_files - 1].ost_index; i < nb_output_streams; i++) {
InputStream *ist;
if (output_streams[i].source_index < 0)
continue;
ist = &input_streams[output_streams[i].source_index];
av_dict_copy(&output_streams[i].st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
}
for (i = 0; i < o->nb_metadata; i++) {
AVDictionary **m;
char type, *val;
int index = 0;
val = strchr(o->metadata[i].u.str, '=');
if (!val) {
av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
o->metadata[i].u.str);
exit_program(1);
}
*val++ = 0;
parse_meta_type(o->metadata[i].specifier, &type, &index);
switch (type) {
case 'g':
m = &oc->metadata;
break;
case 's':
if (index < 0 || index >= oc->nb_streams) {
av_log(NULL, AV_LOG_FATAL, "Invalid stream index %d in metadata specifier.\n", index);
exit_program(1);
}
m = &oc->streams[index]->metadata;
break;
case 'c':
if (index < 0 || index >= oc->nb_chapters) {
av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
exit_program(1);
}
m = &oc->chapters[index]->metadata;
break;
default:
av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
exit_program(1);
}
av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
}
reset_options(o);
} | https://github.com/libav/libav/blob/e551a6f49a13f2e992c42bc00a8b45ad636e52ad/avconv.c/#L3531 |
d2a_code_data_44417 | int av_samples_get_buffer_size(int *linesize, int nb_channels, int nb_samples,
enum AVSampleFormat sample_fmt, int align)
{
int line_size;
int sample_size = av_get_bytes_per_sample(sample_fmt);
int planar = av_sample_fmt_is_planar(sample_fmt);
if (!sample_size || nb_samples <= 0 || nb_channels <= 0)
return AVERROR(EINVAL);
if (!align) {
if (nb_samples > INT_MAX - 31)
return AVERROR(EINVAL);
align = 1;
nb_samples = FFALIGN(nb_samples, 32);
}
if (nb_channels > INT_MAX / align ||
(int64_t)nb_channels * nb_samples > (INT_MAX - (align * nb_channels)) / sample_size)
return AVERROR(EINVAL);
line_size = planar ? FFALIGN(nb_samples * sample_size, align) :
FFALIGN(nb_samples * sample_size * nb_channels, align);
if (linesize)
*linesize = line_size;
return planar ? line_size * nb_channels : line_size;
} | https://github.com/libav/libav/blob/ccea588f831906084b8c8235222920e6984beb72/libavutil/samplefmt.c/#L124 |
d2a_code_data_44418 | off_t
ngx_parse_offset(ngx_str_t *line)
{
u_char unit;
off_t offset;
size_t len;
ngx_int_t scale;
len = line->len;
unit = line->data[len - 1];
switch (unit) {
case 'K':
case 'k':
len--;
scale = 1024;
break;
case 'M':
case 'm':
len--;
scale = 1024 * 1024;
break;
case 'G':
case 'g':
len--;
scale = 1024 * 1024 * 1024;
break;
default:
scale = 1;
}
offset = ngx_atoof(line->data, len);
if (offset == NGX_ERROR) {
return NGX_ERROR;
}
offset *= scale;
return offset;
} | https://github.com/nginx/nginx/blob/e4ecddfdb0d2ffc872658e36028971ad9a873726/src/core/ngx_parse.c/#L59 |
d2a_code_data_44419 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | https://github.com/openssl/openssl/blob/ec772a817afc0f788c38006f623204a7d76221ec/crypto/bn/bn_ctx.c/#L273 |
d2a_code_data_44420 | static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
{
BN_ULONG *a = NULL;
if (words > (INT_MAX / (4 * BN_BITS2))) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);
return NULL;
}
if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);
return NULL;
}
if (BN_get_flags(b, BN_FLG_SECURE))
a = OPENSSL_secure_zalloc(words * sizeof(*a));
else
a = OPENSSL_zalloc(words * sizeof(*a));
if (a == NULL) {
BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);
return NULL;
}
assert(b->top <= words);
if (b->top > 0)
memcpy(a, b->d, sizeof(*a) * b->top);
return a;
} | https://github.com/openssl/openssl/blob/18e1e302452e6dea4500b6f981cee7e151294dea/crypto/bn/bn_lib.c/#L232 |
d2a_code_data_44421 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | https://github.com/openssl/openssl/blob/e113c9c59dcb419dd00525cec431edb854a6c897/crypto/bn/bn_ctx.c/#L328 |
d2a_code_data_44422 | void bn_sqr_normal(BN_ULONG *r, const BN_ULONG *a, int n, BN_ULONG *tmp)
{
int i, j, max;
const BN_ULONG *ap;
BN_ULONG *rp;
max = n * 2;
ap = a;
rp = r;
rp[0] = rp[max - 1] = 0;
rp++;
j = n;
if (--j > 0) {
ap++;
rp[j] = bn_mul_words(rp, ap, j, ap[-1]);
rp += 2;
}
for (i = n - 2; i > 0; i--) {
j--;
ap++;
rp[j] = bn_mul_add_words(rp, ap, j, ap[-1]);
rp += 2;
}
bn_add_words(r, r, r, max);
bn_sqr_words(tmp, a, n);
bn_add_words(r, r, tmp, max);
} | https://github.com/openssl/openssl/blob/69588edbaa424beb71c6a9b1be416588232cb78c/crypto/bn/bn_sqr.c/#L113 |
d2a_code_data_44423 | int av_base64_decode(uint8_t * out, const char *in, int out_length)
{
int i, v;
uint8_t *dst = out;
v = 0;
for (i = 0; in[i] && in[i] != '='; i++) {
unsigned int index= in[i]-43;
if (index>=(sizeof(map2)/sizeof(map2[0])) || map2[index] == 0xff)
return -1;
v = (v << 6) + map2[index];
if (i & 3) {
if (dst - out < out_length) {
*dst++ = v >> (6 - 2 * (i & 3));
}
}
}
return (dst - out);
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavutil/base64.c/#L54 |
d2a_code_data_44424 | void bn_sqr_normal(BN_ULONG *r, const BN_ULONG *a, int n, BN_ULONG *tmp)
{
int i, j, max;
const BN_ULONG *ap;
BN_ULONG *rp;
max = n * 2;
ap = a;
rp = r;
rp[0] = rp[max - 1] = 0;
rp++;
j = n;
if (--j > 0) {
ap++;
rp[j] = bn_mul_words(rp, ap, j, ap[-1]);
rp += 2;
}
for (i = n - 2; i > 0; i--) {
j--;
ap++;
rp[j] = bn_mul_add_words(rp, ap, j, ap[-1]);
rp += 2;
}
bn_add_words(r, r, r, max);
bn_sqr_words(tmp, a, n);
bn_add_words(r, r, tmp, max);
} | https://github.com/openssl/openssl/blob/a8ca496ddb532d7f7dc356fd2b026697388d2384/crypto/bn/bn_sqr.c/#L114 |
d2a_code_data_44425 | static int epzs_motion_search4(MpegEncContext * s,
int *mx_ptr, int *my_ptr, int P[10][2],
int src_index, int ref_index, int16_t (*last_mv)[2],
int ref_mv_scale)
{
MotionEstContext * const c= &s->me;
int best[2]={0, 0};
int d, dmin;
int map_generation;
const int penalty_factor= c->penalty_factor;
const int size=1;
const int h=8;
const int ref_mv_stride= s->mb_stride;
const int ref_mv_xy= s->mb_x + s->mb_y *ref_mv_stride;
me_cmp_func cmpf, chroma_cmpf;
LOAD_COMMON
int flags= c->flags;
LOAD_COMMON2
cmpf= s->dsp.me_cmp[size];
chroma_cmpf= s->dsp.me_cmp[size+1];
map_generation= update_map_generation(c);
dmin = 1000000;
if (s->first_slice_line) {
CHECK_MV(P_LEFT[0]>>shift, P_LEFT[1]>>shift)
CHECK_CLIPPED_MV((last_mv[ref_mv_xy][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy][1]*ref_mv_scale + (1<<15))>>16)
CHECK_MV(P_MV1[0]>>shift, P_MV1[1]>>shift)
}else{
CHECK_MV(P_MV1[0]>>shift, P_MV1[1]>>shift)
CHECK_MV(P_MEDIAN[0]>>shift, P_MEDIAN[1]>>shift)
CHECK_MV(P_LEFT[0]>>shift, P_LEFT[1]>>shift)
CHECK_MV(P_TOP[0]>>shift, P_TOP[1]>>shift)
CHECK_MV(P_TOPRIGHT[0]>>shift, P_TOPRIGHT[1]>>shift)
CHECK_CLIPPED_MV((last_mv[ref_mv_xy][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy][1]*ref_mv_scale + (1<<15))>>16)
}
if(dmin>64*4){
CHECK_CLIPPED_MV((last_mv[ref_mv_xy+1][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy+1][1]*ref_mv_scale + (1<<15))>>16)
if(s->mb_y+1<s->end_mb_y)
CHECK_CLIPPED_MV((last_mv[ref_mv_xy+ref_mv_stride][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy+ref_mv_stride][1]*ref_mv_scale + (1<<15))>>16)
}
dmin= diamond_search(s, best, dmin, src_index, ref_index, penalty_factor, size, h, flags);
*mx_ptr= best[0];
*my_ptr= best[1];
return dmin;
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/motion_est_template.c/#L1166 |
d2a_code_data_44426 | static void unpack_input(const unsigned char *input, unsigned int *output)
{
unsigned int outbuffer[28];
unsigned short inbuffer[10];
unsigned int x;
unsigned int *ptr;
for (x=0;x<20;x+=2)
inbuffer[x/2]=(input[x]<<8)+input[x+1];
ptr=outbuffer;
*(ptr++)=27;
*(ptr++)=(inbuffer[0]>>10)&0x3f;
*(ptr++)=(inbuffer[0]>>5)&0x1f;
*(ptr++)=inbuffer[0]&0x1f;
*(ptr++)=(inbuffer[1]>>12)&0xf;
*(ptr++)=(inbuffer[1]>>8)&0xf;
*(ptr++)=(inbuffer[1]>>5)&7;
*(ptr++)=(inbuffer[1]>>2)&7;
*(ptr++)=((inbuffer[1]<<1)&6)|((inbuffer[2]>>15)&1);
*(ptr++)=(inbuffer[2]>>12)&7;
*(ptr++)=(inbuffer[2]>>10)&3;
*(ptr++)=(inbuffer[2]>>5)&0x1f;
*(ptr++)=((inbuffer[2]<<2)&0x7c)|((inbuffer[3]>>14)&3);
*(ptr++)=(inbuffer[3]>>6)&0xff;
*(ptr++)=((inbuffer[3]<<1)&0x7e)|((inbuffer[4]>>15)&1);
*(ptr++)=(inbuffer[4]>>8)&0x7f;
*(ptr++)=(inbuffer[4]>>1)&0x7f;
*(ptr++)=((inbuffer[4]<<7)&0x80)|((inbuffer[5]>>9)&0x7f);
*(ptr++)=(inbuffer[5]>>2)&0x7f;
*(ptr++)=((inbuffer[5]<<5)&0x60)|((inbuffer[6]>>11)&0x1f);
*(ptr++)=(inbuffer[6]>>4)&0x7f;
*(ptr++)=((inbuffer[6]<<4)&0xf0)|((inbuffer[7]>>12)&0xf);
*(ptr++)=(inbuffer[7]>>5)&0x7f;
*(ptr++)=((inbuffer[7]<<2)&0x7c)|((inbuffer[8]>>14)&3);
*(ptr++)=(inbuffer[8]>>7)&0x7f;
*(ptr++)=((inbuffer[8]<<1)&0xfe)|((inbuffer[9]>>15)&1);
*(ptr++)=(inbuffer[9]>>8)&0x7f;
*(ptr++)=(inbuffer[9]>>1)&0x7f;
*(output++)=outbuffer[11];
for (x=1;x<11;*(output++)=outbuffer[x++]);
ptr=outbuffer+12;
for (x=0;x<16;x+=4)
{
*(output++)=ptr[x];
*(output++)=ptr[x+2];
*(output++)=ptr[x+3];
*(output++)=ptr[x+1];
}
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/ra144.c/#L268 |
d2a_code_data_44427 | ngx_int_t
ngx_conf_full_name(ngx_cycle_t *cycle, ngx_str_t *name, ngx_uint_t conf_prefix)
{
size_t len;
u_char *p, *prefix;
ngx_str_t old;
if (name->data[0] == '/') {
return NGX_OK;
}
#if (NGX_WIN32)
if (name->len > 2
&& name->data[1] == ':'
&& ((name->data[0] >= 'a' && name->data[0] <= 'z')
|| (name->data[0] >= 'A' && name->data[0] <= 'Z')))
{
return NGX_OK;
}
#endif
old = *name;
if (conf_prefix) {
len = sizeof(NGX_CONF_PREFIX) - 1;
prefix = (u_char *) NGX_CONF_PREFIX;
} else {
len = cycle->root.len;
prefix = cycle->root.data;
}
name->len = len + old.len;
name->data = ngx_pnalloc(cycle->pool, name->len + 1);
if (name->data == NULL) {
return NGX_ERROR;
}
p = ngx_cpymem(name->data, prefix, len);
ngx_cpystrn(p, old.data, old.len + 1);
return NGX_OK;
} | https://github.com/nginx/nginx/blob/e4ecddfdb0d2ffc872658e36028971ad9a873726/src/core/ngx_conf_file.c/#L834 |
d2a_code_data_44428 | static int check_image_pointers(uint8_t *data[4], enum AVPixelFormat pix_fmt,
const int linesizes[4])
{
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
int i;
for (i = 0; i < 4; i++) {
int plane = desc->comp[i].plane;
if (!data[plane] || !linesizes[plane])
return 0;
}
return 1;
} | https://github.com/libav/libav/blob/5f87c277bd5caa09cc4f9061d4ccdd58dc121110/libswscale/swscale_unscaled.c/#L1118 |
d2a_code_data_44429 | static void contract(LHASH *lh)
{
LHASH_NODE **n,*n1,*np;
np=lh->b[lh->p+lh->pmax-1];
lh->b[lh->p+lh->pmax-1]=NULL;
if (lh->p == 0)
{
n=(LHASH_NODE **)Realloc(lh->b,
(unsigned int)(sizeof(LHASH_NODE *)*lh->pmax));
if (n == NULL)
{
lh->error++;
return;
}
lh->num_contract_reallocs++;
lh->num_alloc_nodes/=2;
lh->pmax/=2;
lh->p=lh->pmax-1;
lh->b=n;
}
else
lh->p--;
lh->num_nodes--;
lh->num_contracts++;
n1=lh->b[(int)lh->p];
if (n1 == NULL)
lh->b[(int)lh->p]=np;
else
{
while (n1->next != NULL)
n1=n1->next;
n1->next=np;
}
} | https://github.com/openssl/openssl/blob/1c890fa86415d7f739509701e213a2093fe53438/crypto/lhash/lhash.c/#L356 |
d2a_code_data_44430 | int ASN1_GENERALIZEDTIME_print(BIO *bp, const ASN1_GENERALIZEDTIME *tm)
{
char *v;
int gmt = 0;
int i;
int y = 0, M = 0, d = 0, h = 0, m = 0, s = 0;
char *f = NULL;
int f_len = 0;
i = tm->length;
v = (char *)tm->data;
if (i < 12)
goto err;
if (v[i - 1] == 'Z')
gmt = 1;
for (i = 0; i < 12; i++)
if ((v[i] > '9') || (v[i] < '0'))
goto err;
y = (v[0] - '0') * 1000 + (v[1] - '0') * 100
+ (v[2] - '0') * 10 + (v[3] - '0');
M = (v[4] - '0') * 10 + (v[5] - '0');
if ((M > 12) || (M < 1))
goto err;
d = (v[6] - '0') * 10 + (v[7] - '0');
h = (v[8] - '0') * 10 + (v[9] - '0');
m = (v[10] - '0') * 10 + (v[11] - '0');
if (tm->length >= 14 &&
(v[12] >= '0') && (v[12] <= '9') &&
(v[13] >= '0') && (v[13] <= '9')) {
s = (v[12] - '0') * 10 + (v[13] - '0');
if (tm->length >= 15 && v[14] == '.') {
int l = tm->length;
f = &v[14];
f_len = 1;
while (14 + f_len < l && f[f_len] >= '0' && f[f_len] <= '9')
++f_len;
}
}
if (BIO_printf(bp, "%s %2d %02d:%02d:%02d%.*s %d%s",
_asn1_mon[M - 1], d, h, m, s, f_len, f, y,
(gmt) ? " GMT" : "") <= 0)
return (0);
else
return (1);
err:
BIO_write(bp, "Bad time value", 14);
return (0);
} | https://github.com/openssl/openssl/blob/01b7851aa27aa144372f5484da916be042d9aa4f/crypto/asn1/a_gentm.c/#L308 |
d2a_code_data_44431 | static SwsVector *sws_sumVec(SwsVector *a, SwsVector *b){
int length= FFMAX(a->length, b->length);
double *coeff= av_malloc(length*sizeof(double));
int i;
SwsVector *vec= av_malloc(sizeof(SwsVector));
vec->coeff= coeff;
vec->length= length;
for (i=0; i<length; i++) coeff[i]= 0.0;
for (i=0; i<a->length; i++) coeff[i + (length-1)/2 - (a->length-1)/2]+= a->coeff[i];
for (i=0; i<b->length; i++) coeff[i + (length-1)/2 - (b->length-1)/2]+= b->coeff[i];
return vec;
} | https://github.com/libav/libav/blob/184bc53db4fded8857af09cee2adc7197940deb7/libswscale/swscale.c/#L2977 |
d2a_code_data_44432 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | https://github.com/openssl/openssl/blob/a055a8815587f402d700093dea0dec6bf34631a3/crypto/bn/bn_ctx.c/#L273 |
d2a_code_data_44433 | static ossl_inline size_t constant_time_lt_s(size_t a, size_t b)
{
return constant_time_msb_s(a ^ ((a ^ b) | ((a - b) ^ b)));
} | https://github.com/openssl/openssl/blob/7f7eb90b8ac55997c5c825bb3ebcfe28611e06f5/include/internal/constant_time_locl.h/#L119 |
d2a_code_data_44434 | int BN_X931_generate_Xpq(BIGNUM *Xp, BIGNUM *Xq, int nbits, BN_CTX *ctx)
{
BIGNUM *t;
int i;
if ((nbits < 1024) || (nbits & 0xff))
return 0;
nbits >>= 1;
if (!BN_rand(Xp, nbits, BN_RAND_TOP_TWO, BN_RAND_BOTTOM_ANY))
goto err;
BN_CTX_start(ctx);
t = BN_CTX_get(ctx);
for (i = 0; i < 1000; i++) {
if (!BN_rand(Xq, nbits, BN_RAND_TOP_TWO, BN_RAND_BOTTOM_ANY))
goto err;
BN_sub(t, Xp, Xq);
if (BN_num_bits(t) > (nbits - 100))
break;
}
BN_CTX_end(ctx);
if (i < 1000)
return 1;
return 0;
err:
BN_CTX_end(ctx);
return 0;
} | https://github.com/openssl/openssl/blob/c6231e9c7baec688792e043d12508e608545fffb/crypto/bn/bn_x931p.c/#L187 |
d2a_code_data_44435 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | https://github.com/openssl/openssl/blob/4af793036f6ef4f0a1078e5d7155426a98d50e37/crypto/bn/bn_ctx.c/#L353 |
d2a_code_data_44436 | static int seq_parse_frame_data(SeqDemuxContext *seq, ByteIOContext *pb)
{
unsigned int offset_table[4], buffer_num[4];
TiertexSeqFrameBuffer *seq_buffer;
int i, e, err;
seq->current_frame_offs += SEQ_FRAME_SIZE;
url_fseek(pb, seq->current_frame_offs, SEEK_SET);
seq->current_audio_data_offs = get_le16(pb);
if (seq->current_audio_data_offs != 0) {
seq->current_audio_data_size = SEQ_AUDIO_BUFFER_SIZE * 2;
} else {
seq->current_audio_data_size = 0;
}
seq->current_pal_data_offs = get_le16(pb);
if (seq->current_pal_data_offs != 0) {
seq->current_pal_data_size = 768;
} else {
seq->current_pal_data_size = 0;
}
for (i = 0; i < 4; i++)
buffer_num[i] = get_byte(pb);
for (i = 0; i < 4; i++)
offset_table[i] = get_le16(pb);
for (i = 0; i < 3; i++) {
if (offset_table[i] != 0) {
for (e = i + 1; e < 4 && offset_table[e] == 0; e++);
err = seq_fill_buffer(seq, pb, buffer_num[1 + i],
offset_table[i],
offset_table[e] - offset_table[i]);
if (err != 0)
return err;
}
}
if (buffer_num[0] != 255) {
if (buffer_num[0] >= SEQ_NUM_FRAME_BUFFERS)
return AVERROR_INVALIDDATA;
seq_buffer = &seq->frame_buffers[buffer_num[0]];
seq->current_video_data_size = seq_buffer->fill_size;
seq->current_video_data_ptr = seq_buffer->data;
seq_buffer->fill_size = 0;
} else {
seq->current_video_data_size = 0;
seq->current_video_data_ptr = 0;
}
return 0;
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavformat/tiertexseq.c/#L159 |
d2a_code_data_44437 | static void pred8x8l_vertical_right_c(uint8_t *src, int has_topleft, int has_topright, int stride)
{
PREDICT_8x8_LOAD_TOP;
PREDICT_8x8_LOAD_LEFT;
PREDICT_8x8_LOAD_TOPLEFT;
SRC(0,6)= (l5 + 2*l4 + l3 + 2) >> 2;
SRC(0,7)= (l6 + 2*l5 + l4 + 2) >> 2;
SRC(0,4)=SRC(1,6)= (l3 + 2*l2 + l1 + 2) >> 2;
SRC(0,5)=SRC(1,7)= (l4 + 2*l3 + l2 + 2) >> 2;
SRC(0,2)=SRC(1,4)=SRC(2,6)= (l1 + 2*l0 + lt + 2) >> 2;
SRC(0,3)=SRC(1,5)=SRC(2,7)= (l2 + 2*l1 + l0 + 2) >> 2;
SRC(0,1)=SRC(1,3)=SRC(2,5)=SRC(3,7)= (l0 + 2*lt + t0 + 2) >> 2;
SRC(0,0)=SRC(1,2)=SRC(2,4)=SRC(3,6)= (lt + t0 + 1) >> 1;
SRC(1,1)=SRC(2,3)=SRC(3,5)=SRC(4,7)= (lt + 2*t0 + t1 + 2) >> 2;
SRC(1,0)=SRC(2,2)=SRC(3,4)=SRC(4,6)= (t0 + t1 + 1) >> 1;
SRC(2,1)=SRC(3,3)=SRC(4,5)=SRC(5,7)= (t0 + 2*t1 + t2 + 2) >> 2;
SRC(2,0)=SRC(3,2)=SRC(4,4)=SRC(5,6)= (t1 + t2 + 1) >> 1;
SRC(3,1)=SRC(4,3)=SRC(5,5)=SRC(6,7)= (t1 + 2*t2 + t3 + 2) >> 2;
SRC(3,0)=SRC(4,2)=SRC(5,4)=SRC(6,6)= (t2 + t3 + 1) >> 1;
SRC(4,1)=SRC(5,3)=SRC(6,5)=SRC(7,7)= (t2 + 2*t3 + t4 + 2) >> 2;
SRC(4,0)=SRC(5,2)=SRC(6,4)=SRC(7,6)= (t3 + t4 + 1) >> 1;
SRC(5,1)=SRC(6,3)=SRC(7,5)= (t3 + 2*t4 + t5 + 2) >> 2;
SRC(5,0)=SRC(6,2)=SRC(7,4)= (t4 + t5 + 1) >> 1;
SRC(6,1)=SRC(7,3)= (t4 + 2*t5 + t6 + 2) >> 2;
SRC(6,0)=SRC(7,2)= (t5 + t6 + 1) >> 1;
SRC(7,1)= (t5 + 2*t6 + t7 + 2) >> 2;
SRC(7,0)= (t6 + t7 + 1) >> 1;
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/h264pred.c/#L900 |
d2a_code_data_44438 | int is_partially_overlapping(const void *ptr1, const void *ptr2, int len)
{
PTRDIFF_T diff = (PTRDIFF_T)ptr1-(PTRDIFF_T)ptr2;
int overlapped = (len > 0) & (diff != 0) & ((diff < (PTRDIFF_T)len) |
(diff > (0 - (PTRDIFF_T)len)));
return overlapped;
} | https://github.com/openssl/openssl/blob/b1531d8e6cc95837e38b10d875ae64144c6fdf7a/crypto/evp/evp_enc.c/#L288 |
d2a_code_data_44439 | static int opt_streamid(OptionsContext *o, const char *opt, const char *arg)
{
int idx;
char *p;
char idx_str[16];
av_strlcpy(idx_str, arg, sizeof(idx_str));
p = strchr(idx_str, ':');
if (!p) {
av_log(NULL, AV_LOG_FATAL,
"Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
arg, opt);
exit_program(1);
}
*p++ = '\0';
idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
return 0;
} | https://github.com/libav/libav/blob/1be8c90847300ac7889833612c99d57c58ff64b1/avconv.c/#L4063 |
d2a_code_data_44440 | void avformat_close_input(AVFormatContext **ps)
{
AVFormatContext *s = *ps;
AVIOContext *pb = s->pb;
if ((s->iformat && s->iformat->flags & AVFMT_NOFILE) ||
(s->flags & AVFMT_FLAG_CUSTOM_IO))
pb = NULL;
flush_packet_queue(s);
if (s->iformat) {
if (s->iformat->read_close)
s->iformat->read_close(s);
}
avformat_free_context(s);
*ps = NULL;
avio_close(pb);
} | https://github.com/libav/libav/blob/d7b3ee9a3a03ab88d61a5895fbdbc6689f4dd671/libavformat/utils.c/#L2559 |
d2a_code_data_44441 | static void doall_util_fn(OPENSSL_LHASH *lh, int use_arg,
OPENSSL_LH_DOALL_FUNC func,
OPENSSL_LH_DOALL_FUNCARG func_arg, void *arg)
{
int i;
OPENSSL_LH_NODE *a, *n;
if (lh == NULL)
return;
for (i = lh->num_nodes - 1; i >= 0; i--) {
a = lh->b[i];
while (a != NULL) {
n = a->next;
if (use_arg)
func_arg(a->data, arg);
else
func(a->data);
a = n;
}
}
} | https://github.com/openssl/openssl/blob/034cb87b6c7758986b40692d1d5abdd2a7ba826e/crypto/lhash/lhash.c/#L180 |
d2a_code_data_44442 | static inline uint64_t get_val(BitstreamContext *bc, unsigned n)
{
#ifdef BITSTREAM_READER_LE
uint64_t ret = bc->bits & ((UINT64_C(1) << n) - 1);
bc->bits >>= n;
#else
uint64_t ret = bc->bits >> (64 - n);
bc->bits <<= n;
#endif
bc->bits_left -= n;
return ret;
} | https://github.com/libav/libav/blob/562ef82d6a7f96f6b9da1219a5aaf7d9d7056f1b/libavcodec/bitstream.h/#L139 |
d2a_code_data_44443 | int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
{
int i, nw, lb, rb;
BN_ULONG *t, *f;
BN_ULONG l;
bn_check_top(r);
bn_check_top(a);
if (n < 0) {
BNerr(BN_F_BN_LSHIFT, BN_R_INVALID_SHIFT);
return 0;
}
nw = n / BN_BITS2;
if (bn_wexpand(r, a->top + nw + 1) == NULL)
return 0;
r->neg = a->neg;
lb = n % BN_BITS2;
rb = BN_BITS2 - lb;
f = a->d;
t = r->d;
t[a->top + nw] = 0;
if (lb == 0)
for (i = a->top - 1; i >= 0; i--)
t[nw + i] = f[i];
else
for (i = a->top - 1; i >= 0; i--) {
l = f[i];
t[nw + i + 1] |= (l >> rb) & BN_MASK2;
t[nw + i] = (l << lb) & BN_MASK2;
}
memset(t, 0, sizeof(*t) * nw);
r->top = a->top + nw + 1;
bn_correct_top(r);
bn_check_top(r);
return 1;
} | https://github.com/openssl/openssl/blob/630fe1da888490b7dfef3fe0928b813ddff5d51a/crypto/bn/bn_shift.c/#L112 |
d2a_code_data_44444 | int test_gf2m_mod_sqrt(BIO *bp, BN_CTX *ctx)
{
BIGNUM *a, *b[2], *c, *d, *e, *f;
int i, j, ret = 0;
int p0[] = { 163, 7, 6, 3, 0, -1 };
int p1[] = { 193, 15, 0, -1 };
a = BN_new();
b[0] = BN_new();
b[1] = BN_new();
c = BN_new();
d = BN_new();
e = BN_new();
f = BN_new();
BN_GF2m_arr2poly(p0, b[0]);
BN_GF2m_arr2poly(p1, b[1]);
for (i = 0; i < num0; i++) {
BN_bntest_rand(a, 512, 0, 0);
for (j = 0; j < 2; j++) {
BN_GF2m_mod(c, a, b[j]);
BN_GF2m_mod_sqrt(d, a, b[j], ctx);
BN_GF2m_mod_sqr(e, d, b[j], ctx);
BN_GF2m_add(f, c, e);
if (!BN_is_zero(f)) {
fprintf(stderr, "GF(2^m) modular square root test failed!\n");
goto err;
}
}
}
ret = 1;
err:
BN_free(a);
BN_free(b[0]);
BN_free(b[1]);
BN_free(c);
BN_free(d);
BN_free(e);
BN_free(f);
return ret;
} | https://github.com/openssl/openssl/blob/ec04e866343d40a1e3e8e5db79557e279a2dd0d8/test/bntest.c/#L1568 |
d2a_code_data_44445 | static RSA *tmp_rsa_cb(SSL *s, int is_export, int keylength)
{
BIGNUM *bn = NULL;
static RSA *rsa_tmp = NULL;
if (!rsa_tmp && ((bn = BN_new()) == NULL))
BIO_printf(bio_err, "Allocation error in generating RSA key\n");
if (!rsa_tmp && bn) {
if (!s_quiet) {
BIO_printf(bio_err, "Generating temp (%d bit) RSA key...",
keylength);
(void)BIO_flush(bio_err);
}
if (!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
!RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL)) {
RSA_free(rsa_tmp);
rsa_tmp = NULL;
}
if (!s_quiet) {
BIO_printf(bio_err, "\n");
(void)BIO_flush(bio_err);
}
BN_free(bn);
}
return (rsa_tmp);
} | https://github.com/openssl/openssl/blob/f3b9257f8239e06cc30cea47558d37fc540853ee/apps/s_server.c/#L3116 |
d2a_code_data_44446 | static void test_fail_bignum_common(const char *prefix, const char *file,
int line, const char *type,
const char *left, const char *right,
const char *op,
const BIGNUM *bn1, const BIGNUM *bn2)
{
const int indent = subtest_level();
const size_t bytes = bn_bytes;
char b1[MAX_STRING_WIDTH + 1], b2[MAX_STRING_WIDTH + 1];
char *p, bdiff[MAX_STRING_WIDTH + 1];
size_t l1, l2, n1, n2, i, len;
unsigned int cnt, diff, real_diff;
unsigned char *m1 = NULL, *m2 = NULL;
int lz1 = 1, lz2 = 1;
unsigned char buffer[MEM_BUFFER_SIZE * 2], *bufp = buffer;
l1 = bn1 == NULL ? 0 : (BN_num_bytes(bn1) + (BN_is_negative(bn1) ? 1 : 0));
l2 = bn2 == NULL ? 0 : (BN_num_bytes(bn2) + (BN_is_negative(bn2) ? 1 : 0));
if (l1 == 0 && l2 == 0) {
if ((bn1 == NULL) == (bn2 == NULL)) {
test_bignum_header_line();
test_bignum_zero_print(bn1, ' ');
} else {
test_diff_header(left, right);
test_bignum_header_line();
test_bignum_zero_print(bn1, '-');
test_bignum_zero_print(bn2, '+');
}
goto fin;
}
if (l1 != l2 || bn1 == NULL || bn2 == NULL || BN_cmp(bn1, bn2) != 0)
test_diff_header(left, right);
test_bignum_header_line();
len = ((l1 > l2 ? l1 : l2) + bytes - 1) / bytes * bytes;
if (len > MEM_BUFFER_SIZE && (bufp = OPENSSL_malloc(len * 2)) == NULL) {
bufp = buffer;
len = MEM_BUFFER_SIZE;
test_printf_stderr("%*s# WARNING: these BIGNUMs have been truncated",
indent, "");
}
if (bn1 != NULL) {
m1 = bufp;
BN_bn2binpad(bn1, m1, len);
}
if (bn2 != NULL) {
m2 = bufp + len;
BN_bn2binpad(bn2, m2, len);
}
while (len > 0) {
cnt = 8 * (len - bytes);
n1 = convert_bn_memory(m1, bytes, b1, &lz1, bn1);
n2 = convert_bn_memory(m2, bytes, b2, &lz2, bn2);
diff = real_diff = 0;
i = 0;
p = bdiff;
for (i=0; b1[i] != '\0'; i++)
if (b1[i] == b2[i] || b1[i] == ' ' || b2[i] == ' ') {
*p++ = ' ';
diff |= b1[i] != b2[i];
} else {
*p++ = '^';
real_diff = diff = 1;
}
*p++ = '\0';
if (!diff) {
test_printf_stderr("%*s# %s:% 5d\n", indent, "",
n2 > n1 ? b2 : b1, cnt);
} else {
if (cnt == 0 && bn1 == NULL)
test_printf_stderr("%*s# -%s\n", indent, "", b1);
else if (cnt == 0 || n1 > 0)
test_printf_stderr("%*s# -%s:% 5d\n", indent, "", b1, cnt);
if (cnt == 0 && bn2 == NULL)
test_printf_stderr("%*s# +%s\n", indent, "", b2);
else if (cnt == 0 || n2 > 0)
test_printf_stderr("%*s# +%s:% 5d\n", indent, "", b2, cnt);
if (real_diff && (cnt == 0 || (n1 > 0 && n2 > 0))
&& bn1 != NULL && bn2 != NULL)
test_printf_stderr("%*s# %s\n", indent, "", bdiff);
}
if (m1 != NULL)
m1 += bytes;
if (m2 != NULL)
m2 += bytes;
len -= bytes;
}
fin:
test_printf_stderr("\n");
test_flush_stderr();
if (bufp != buffer)
OPENSSL_free(bufp);
} | https://github.com/openssl/openssl/blob/ffbaf06ade6dab6a0805a24087cf2e84c5db8d43/test/testutil/tests.c/#L331 |
d2a_code_data_44447 | static void info_cb(const SSL *s, int where, int ret)
{
if (where & SSL_CB_ALERT) {
HANDSHAKE_EX_DATA *ex_data =
(HANDSHAKE_EX_DATA*)(SSL_get_ex_data(s, ex_data_idx));
if (where & SSL_CB_WRITE) {
ex_data->alert_sent = ret;
if (strcmp(SSL_alert_type_string(ret), "F") == 0
|| strcmp(SSL_alert_desc_string(ret), "CN") == 0)
ex_data->num_fatal_alerts_sent++;
} else {
ex_data->alert_received = ret;
}
}
} | https://github.com/openssl/openssl/blob/0f5df0f1037590de12cc11eeab26fe29bf3f16a3/test/handshake_helper.c/#L95 |
d2a_code_data_44448 | static int sbr_make_f_master(AACContext *ac, SpectralBandReplication *sbr,
SpectrumParameters *spectrum)
{
unsigned int temp, max_qmf_subbands;
unsigned int start_min, stop_min;
int k;
const int8_t *sbr_offset_ptr;
int16_t stop_dk[13];
if (sbr->sample_rate < 32000) {
temp = 3000;
} else if (sbr->sample_rate < 64000) {
temp = 4000;
} else
temp = 5000;
start_min = ((temp << 7) + (sbr->sample_rate >> 1)) / sbr->sample_rate;
stop_min = ((temp << 8) + (sbr->sample_rate >> 1)) / sbr->sample_rate;
switch (sbr->sample_rate) {
case 16000:
sbr_offset_ptr = sbr_offset[0];
break;
case 22050:
sbr_offset_ptr = sbr_offset[1];
break;
case 24000:
sbr_offset_ptr = sbr_offset[2];
break;
case 32000:
sbr_offset_ptr = sbr_offset[3];
break;
case 44100: case 48000: case 64000:
sbr_offset_ptr = sbr_offset[4];
break;
case 88200: case 96000: case 128000: case 176400: case 192000:
sbr_offset_ptr = sbr_offset[5];
break;
default:
av_log(ac->avctx, AV_LOG_ERROR,
"Unsupported sample rate for SBR: %d\n", sbr->sample_rate);
return -1;
}
sbr->k[0] = start_min + sbr_offset_ptr[spectrum->bs_start_freq];
if (spectrum->bs_stop_freq < 14) {
sbr->k[2] = stop_min;
make_bands(stop_dk, stop_min, 64, 13);
qsort(stop_dk, 13, sizeof(stop_dk[0]), qsort_comparison_function_int16);
for (k = 0; k < spectrum->bs_stop_freq; k++)
sbr->k[2] += stop_dk[k];
} else if (spectrum->bs_stop_freq == 14) {
sbr->k[2] = 2*sbr->k[0];
} else if (spectrum->bs_stop_freq == 15) {
sbr->k[2] = 3*sbr->k[0];
} else {
av_log(ac->avctx, AV_LOG_ERROR,
"Invalid bs_stop_freq: %d\n", spectrum->bs_stop_freq);
return -1;
}
sbr->k[2] = FFMIN(64, sbr->k[2]);
if (sbr->sample_rate <= 32000) {
max_qmf_subbands = 48;
} else if (sbr->sample_rate == 44100) {
max_qmf_subbands = 35;
} else if (sbr->sample_rate >= 48000)
max_qmf_subbands = 32;
if (sbr->k[2] - sbr->k[0] > max_qmf_subbands) {
av_log(ac->avctx, AV_LOG_ERROR,
"Invalid bitstream, too many QMF subbands: %d\n", sbr->k[2] - sbr->k[0]);
return -1;
}
if (!spectrum->bs_freq_scale) {
int dk, k2diff;
dk = spectrum->bs_alter_scale + 1;
sbr->n_master = ((sbr->k[2] - sbr->k[0] + (dk&2)) >> dk) << 1;
if (check_n_master(ac->avctx, sbr->n_master, sbr->spectrum_params.bs_xover_band))
return -1;
for (k = 1; k <= sbr->n_master; k++)
sbr->f_master[k] = dk;
k2diff = sbr->k[2] - sbr->k[0] - sbr->n_master * dk;
if (k2diff < 0) {
sbr->f_master[1]--;
sbr->f_master[2]-= (k2diff < -1);
} else if (k2diff) {
sbr->f_master[sbr->n_master]++;
}
sbr->f_master[0] = sbr->k[0];
for (k = 1; k <= sbr->n_master; k++)
sbr->f_master[k] += sbr->f_master[k - 1];
} else {
int half_bands = 7 - spectrum->bs_freq_scale;
int two_regions, num_bands_0;
int vdk0_max, vdk1_min;
int16_t vk0[49];
if (49 * sbr->k[2] > 110 * sbr->k[0]) {
two_regions = 1;
sbr->k[1] = 2 * sbr->k[0];
} else {
two_regions = 0;
sbr->k[1] = sbr->k[2];
}
num_bands_0 = lrintf(half_bands * log2f(sbr->k[1] / (float)sbr->k[0])) * 2;
if (num_bands_0 <= 0) {
av_log(ac->avctx, AV_LOG_ERROR, "Invalid num_bands_0: %d\n", num_bands_0);
return -1;
}
vk0[0] = 0;
make_bands(vk0+1, sbr->k[0], sbr->k[1], num_bands_0);
qsort(vk0 + 1, num_bands_0, sizeof(vk0[1]), qsort_comparison_function_int16);
vdk0_max = vk0[num_bands_0];
vk0[0] = sbr->k[0];
for (k = 1; k <= num_bands_0; k++) {
if (vk0[k] <= 0) {
av_log(ac->avctx, AV_LOG_ERROR, "Invalid vDk0[%d]: %d\n", k, vk0[k]);
return -1;
}
vk0[k] += vk0[k-1];
}
if (two_regions) {
int16_t vk1[49];
float invwarp = spectrum->bs_alter_scale ? 0.76923076923076923077f
: 1.0f;
int num_bands_1 = lrintf(half_bands * invwarp *
log2f(sbr->k[2] / (float)sbr->k[1])) * 2;
make_bands(vk1+1, sbr->k[1], sbr->k[2], num_bands_1);
vdk1_min = array_min_int16(vk1 + 1, num_bands_1);
if (vdk1_min < vdk0_max) {
int change;
qsort(vk1 + 1, num_bands_1, sizeof(vk1[1]), qsort_comparison_function_int16);
change = FFMIN(vdk0_max - vk1[1], (vk1[num_bands_1] - vk1[1]) >> 1);
vk1[1] += change;
vk1[num_bands_1] -= change;
}
qsort(vk1 + 1, num_bands_1, sizeof(vk1[1]), qsort_comparison_function_int16);
vk1[0] = sbr->k[1];
for (k = 1; k <= num_bands_1; k++) {
if (vk1[k] <= 0) {
av_log(ac->avctx, AV_LOG_ERROR, "Invalid vDk1[%d]: %d\n", k, vk1[k]);
return -1;
}
vk1[k] += vk1[k-1];
}
sbr->n_master = num_bands_0 + num_bands_1;
if (check_n_master(ac->avctx, sbr->n_master, sbr->spectrum_params.bs_xover_band))
return -1;
memcpy(&sbr->f_master[0], vk0,
(num_bands_0 + 1) * sizeof(sbr->f_master[0]));
memcpy(&sbr->f_master[num_bands_0 + 1], vk1 + 1,
num_bands_1 * sizeof(sbr->f_master[0]));
} else {
sbr->n_master = num_bands_0;
if (check_n_master(ac->avctx, sbr->n_master, sbr->spectrum_params.bs_xover_band))
return -1;
memcpy(sbr->f_master, vk0, (num_bands_0 + 1) * sizeof(sbr->f_master[0]));
}
}
return 0;
} | https://github.com/libav/libav/blob/5634f30c4a25c17c1de26703948efeafb733413d/libavcodec/aacsbr.c/#L395 |
d2a_code_data_44449 | int WPACKET_allocate_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
{
assert(pkt->subs != NULL && len != 0);
if (pkt->subs == NULL || len == 0)
return 0;
if (pkt->maxsize - pkt->written < len)
return 0;
if (pkt->buf->length - pkt->written < len) {
size_t newlen;
if (pkt->buf->length > SIZE_MAX / 2) {
newlen = SIZE_MAX;
} else {
newlen = (pkt->buf->length == 0) ? DEFAULT_BUF_SIZE
: pkt->buf->length * 2;
}
if (BUF_MEM_grow(pkt->buf, newlen) == 0)
return 0;
}
*allocbytes = (unsigned char *)pkt->buf->data + pkt->curr;
pkt->written += len;
pkt->curr += len;
return 1;
} | https://github.com/openssl/openssl/blob/84d5549e692e63a16fa1b11603e4098fc31746e9/ssl/packet.c/#L25 |
d2a_code_data_44450 | static void BN_POOL_release(BN_POOL *p, unsigned int num)
{
unsigned int offset = (p->used - 1) % BN_CTX_POOL_SIZE;
p->used -= num;
while (num--) {
bn_check_top(p->current->vals + offset);
if (offset == 0) {
offset = BN_CTX_POOL_SIZE - 1;
p->current = p->current->prev;
} else
offset--;
}
} | https://github.com/openssl/openssl/blob/fff684168c7923aa85e6b4381d71d933396e32b0/crypto/bn/bn_ctx.c/#L340 |
d2a_code_data_44451 | static int asn1_get_length(const unsigned char **pp, int *inf, long *rl,
long max)
{
const unsigned char *p = *pp;
unsigned long ret = 0;
unsigned long i;
if (max-- < 1)
return 0;
if (*p == 0x80) {
*inf = 1;
ret = 0;
p++;
} else {
*inf = 0;
i = *p & 0x7f;
if (*(p++) & 0x80) {
if (max < (long)i + 1)
return 0;
while (i && *p == 0) {
p++;
i--;
}
if (i > sizeof(long))
return 0;
while (i-- > 0) {
ret <<= 8L;
ret |= *(p++);
}
} else
ret = i;
}
if (ret > LONG_MAX)
return 0;
*pp = p;
*rl = (long)ret;
return 1;
} | https://github.com/openssl/openssl/blob/7671342e550ed2de676b23c79d0e7f45a381c76e/crypto/asn1/asn1_lib.c/#L125 |
d2a_code_data_44452 | static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
{
BN_ULONG *a = NULL;
bn_check_top(b);
if (words > (INT_MAX / (4 * BN_BITS2))) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);
return NULL;
}
if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);
return NULL;
}
if (BN_get_flags(b, BN_FLG_SECURE))
a = OPENSSL_secure_zalloc(words * sizeof(*a));
else
a = OPENSSL_zalloc(words * sizeof(*a));
if (a == NULL) {
BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);
return NULL;
}
assert(b->top <= words);
if (b->top > 0)
memcpy(a, b->d, sizeof(*a) * b->top);
return a;
} | https://github.com/openssl/openssl/blob/b48d4397b8ee4256f0b0a115eb99f27ae89995e0/crypto/bn/bn_lib.c/#L233 |
d2a_code_data_44453 | static int check_name_constraints(X509_STORE_CTX *ctx)
{
X509 *x;
int i, j, rv;
for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
{
x = sk_X509_value(ctx->chain, i);
if (i && (x->ex_flags & EXFLAG_SI))
continue;
for (j = sk_X509_num(ctx->chain) - 1; j > i; j--)
{
NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;
if (nc)
{
rv = NAME_CONSTRAINTS_check(x, nc);
if (rv != X509_V_OK)
{
ctx->error = rv;
ctx->error_depth = i;
ctx->current_cert = x;
if (!ctx->verify_cb(0,ctx))
return 0;
}
}
}
}
return 1;
} | https://github.com/openssl/openssl/blob/2dac2667d1ec0ffd9f5609cc07f7e1221624e152/crypto/x509/x509_vfy.c/#L704 |
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