id stringlengths 19 19 | content stringlengths 22 69.3k | max_stars_repo_path stringlengths 91 133 |
|---|---|---|
d2a_code_data_45354 | static int bnrand(BNRAND_FLAG flag, BIGNUM *rnd, int bits, int top, int bottom)
{
unsigned char *buf = NULL;
int b, ret = 0, bit, bytes, mask;
if (bits == 0) {
if (top != BN_RAND_TOP_ANY || bottom != BN_RAND_BOTTOM_ANY)
goto toosmall;
BN_zero(rnd);
return 1;
}
if (bits < 0 || (bits == 1 && top > 0))
goto toosmall;
bytes = (bits + 7) / 8;
bit = (bits - 1) % 8;
mask = 0xff << (bit + 1);
buf = OPENSSL_malloc(bytes);
if (buf == NULL) {
BNerr(BN_F_BNRAND, ERR_R_MALLOC_FAILURE);
goto err;
}
b = flag == NORMAL ? RAND_bytes(buf, bytes) : RAND_priv_bytes(buf, bytes);
if (b <= 0)
goto err;
if (flag == TESTING) {
int i;
unsigned char c;
for (i = 0; i < bytes; i++) {
if (RAND_bytes(&c, 1) <= 0)
goto err;
if (c >= 128 && i > 0)
buf[i] = buf[i - 1];
else if (c < 42)
buf[i] = 0;
else if (c < 84)
buf[i] = 255;
}
}
if (top >= 0) {
if (top) {
if (bit == 0) {
buf[0] = 1;
buf[1] |= 0x80;
} else {
buf[0] |= (3 << (bit - 1));
}
} else {
buf[0] |= (1 << bit);
}
}
buf[0] &= ~mask;
if (bottom)
buf[bytes - 1] |= 1;
if (!BN_bin2bn(buf, bytes, rnd))
goto err;
ret = 1;
err:
OPENSSL_clear_free(buf, bytes);
bn_check_top(rnd);
return ret;
toosmall:
BNerr(BN_F_BNRAND, BN_R_BITS_TOO_SMALL);
return 0;
} | https://github.com/openssl/openssl/blob/49cd47eaababc8c57871b929080fc1357e2ad7b8/crypto/bn/bn_rand.c/#L83 |
d2a_code_data_45355 | void RC2_set_key(RC2_KEY *key, int len, const unsigned char *data, int bits)
#ifdef OPENSSL_FIPS
{
fips_cipher_abort(RC2);
private_RC2_set_key(key, len, data, bits);
}
void private_RC2_set_key(RC2_KEY *key, int len, const unsigned char *data, int bits)
#endif
{
int i,j;
unsigned char *k;
RC2_INT *ki;
unsigned int c,d;
k= (unsigned char *)&(key->data[0]);
*k=0;
if (len > 128) len=128;
if (bits <= 0) bits=1024;
if (bits > 1024) bits=1024;
for (i=0; i<len; i++)
k[i]=data[i];
d=k[len-1];
j=0;
for (i=len; i < 128; i++,j++)
{
d=key_table[(k[j]+d)&0xff];
k[i]=d;
}
j=(bits+7)>>3;
i=128-j;
c= (0xff>>(-bits & 0x07));
d=key_table[k[i]&c];
k[i]=d;
while (i--)
{
d=key_table[k[i+j]^d];
k[i]=d;
}
ki= &(key->data[63]);
for (i=127; i>=0; i-=2)
*(ki--)=((k[i]<<8)|k[i-1])&0xffff;
} | https://github.com/openssl/openssl/blob/4af793036f6ef4f0a1078e5d7155426a98d50e37/crypto/rc2/rc2_skey.c/#L120 |
d2a_code_data_45356 | static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
{
OutputStream *ost;
AVStream *st = avformat_new_stream(oc, NULL);
int idx = oc->nb_streams - 1, ret = 0;
char *bsf = NULL, *next, *codec_tag = NULL;
AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
double qscale = -1;
char *buf = NULL, *arg = NULL, *preset = NULL;
AVIOContext *s = NULL;
if (!st) {
av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
exit_program(1);
}
if (oc->nb_streams - 1 < o->nb_streamid_map)
st->id = o->streamid_map[oc->nb_streams - 1];
output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
nb_output_streams + 1);
ost = &output_streams[nb_output_streams - 1];
ost->file_index = nb_output_files;
ost->index = idx;
ost->st = st;
st->codec->codec_type = type;
choose_encoder(o, oc, ost);
if (ost->enc) {
ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
}
avcodec_get_context_defaults3(st->codec, ost->enc);
st->codec->codec_type = type;
MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
do {
buf = get_line(s);
if (!buf[0] || buf[0] == '#') {
av_free(buf);
continue;
}
if (!(arg = strchr(buf, '='))) {
av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
exit_program(1);
}
*arg++ = 0;
av_dict_set(&ost->opts, buf, arg, AV_DICT_DONT_OVERWRITE);
av_free(buf);
} while (!s->eof_reached);
avio_close(s);
}
if (ret) {
av_log(NULL, AV_LOG_FATAL,
"Preset %s specified for stream %d:%d, but could not be opened.\n",
preset, ost->file_index, ost->index);
exit_program(1);
}
ost->max_frames = INT64_MAX;
MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
while (bsf) {
if (next = strchr(bsf, ','))
*next++ = 0;
if (!(bsfc = av_bitstream_filter_init(bsf))) {
av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
exit_program(1);
}
if (bsfc_prev)
bsfc_prev->next = bsfc;
else
ost->bitstream_filters = bsfc;
bsfc_prev = bsfc;
bsf = next;
}
MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
if (codec_tag) {
uint32_t tag = strtol(codec_tag, &next, 0);
if (*next)
tag = AV_RL32(codec_tag);
st->codec->codec_tag = tag;
}
MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
if (qscale >= 0 || same_quant) {
st->codec->flags |= CODEC_FLAG_QSCALE;
st->codec->global_quality = FF_QP2LAMBDA * qscale;
}
if (oc->oformat->flags & AVFMT_GLOBALHEADER)
st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
av_opt_get_int(sws_opts, "sws_flags", 0, &ost->sws_flags);
return ost;
} | https://github.com/libav/libav/blob/e551a6f49a13f2e992c42bc00a8b45ad636e52ad/avconv.c/#L3122 |
d2a_code_data_45357 | static void new_audio_stream(AVFormatContext *oc)
{
AVStream *st;
AVCodecContext *audio_enc;
int codec_id;
st = av_new_stream(oc, oc->nb_streams);
if (!st) {
fprintf(stderr, "Could not alloc stream\n");
av_exit(1);
}
avcodec_get_context_defaults2(st->codec, CODEC_TYPE_AUDIO);
bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
audio_bitstream_filters= NULL;
if(thread_count>1)
avcodec_thread_init(st->codec, thread_count);
audio_enc = st->codec;
audio_enc->codec_type = CODEC_TYPE_AUDIO;
if(audio_codec_tag)
audio_enc->codec_tag= audio_codec_tag;
if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
avctx_opts[CODEC_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
}
if (audio_stream_copy) {
st->stream_copy = 1;
audio_enc->channels = audio_channels;
} else {
AVCodec *codec;
set_context_opts(audio_enc, avctx_opts[CODEC_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
if (audio_codec_name) {
codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 1);
codec = avcodec_find_encoder_by_name(audio_codec_name);
output_codecs[nb_ocodecs] = codec;
} else {
codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_AUDIO);
codec = avcodec_find_encoder(codec_id);
}
audio_enc->codec_id = codec_id;
if (audio_qscale > QSCALE_NONE) {
audio_enc->flags |= CODEC_FLAG_QSCALE;
audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
}
audio_enc->thread_count = thread_count;
audio_enc->channels = audio_channels;
audio_enc->sample_fmt = audio_sample_fmt;
audio_enc->channel_layout = channel_layout;
if(codec && codec->sample_fmts){
const enum SampleFormat *p= codec->sample_fmts;
for(; *p!=-1; p++){
if(*p == audio_enc->sample_fmt)
break;
}
if(*p == -1)
audio_enc->sample_fmt = codec->sample_fmts[0];
}
}
nb_ocodecs++;
audio_enc->sample_rate = audio_sample_rate;
audio_enc->time_base= (AVRational){1, audio_sample_rate};
if (audio_language) {
av_metadata_set(&st->metadata, "language", audio_language);
av_free(audio_language);
audio_language = NULL;
}
audio_disable = 0;
av_freep(&audio_codec_name);
audio_stream_copy = 0;
} | https://github.com/libav/libav/blob/9aaa2077e5879b153d2ce6bea2e42f0c349a083f/ffmpeg.c/#L3107 |
d2a_code_data_45358 | static void opt_input_ts_scale(const char *arg)
{
unsigned int stream;
double scale;
char *p;
stream = strtol(arg, &p, 0);
if (*p)
p++;
scale= strtod(p, &p);
if(stream >= MAX_STREAMS)
ffmpeg_exit(1);
input_files_ts_scale[nb_input_files] = grow_array(input_files_ts_scale[nb_input_files], sizeof(*input_files_ts_scale[nb_input_files]), &nb_input_files_ts_scale[nb_input_files], stream + 1);
input_files_ts_scale[nb_input_files][stream]= scale;
} | https://github.com/libav/libav/blob/f4c79d1e0b2e797012304db57903e4091b0c2d7c/ffmpeg.c/#L3057 |
d2a_code_data_45359 | int BN_GF2m_mod_solve_quad_arr(BIGNUM *r, const BIGNUM *a_, const unsigned int p[], BN_CTX *ctx)
{
int ret = 0, count = 0;
unsigned int j;
BIGNUM *a, *z, *rho, *w, *w2, *tmp;
if (!p[0])
return BN_zero(r);
BN_CTX_start(ctx);
a = BN_CTX_get(ctx);
z = BN_CTX_get(ctx);
w = BN_CTX_get(ctx);
if (w == NULL) goto err;
if (!BN_GF2m_mod_arr(a, a_, p)) goto err;
if (BN_is_zero(a))
{
ret = BN_zero(r);
goto err;
}
if (p[0] & 0x1)
{
if (!BN_copy(z, a)) goto err;
for (j = 1; j <= (p[0] - 1) / 2; j++)
{
if (!BN_GF2m_mod_sqr_arr(z, z, p, ctx)) goto err;
if (!BN_GF2m_mod_sqr_arr(z, z, p, ctx)) goto err;
if (!BN_GF2m_add(z, z, a)) goto err;
}
}
else
{
rho = BN_CTX_get(ctx);
w2 = BN_CTX_get(ctx);
tmp = BN_CTX_get(ctx);
if (tmp == NULL) goto err;
do
{
if (!BN_rand(rho, p[0], 0, 0)) goto err;
if (!BN_GF2m_mod_arr(rho, rho, p)) goto err;
if (!BN_zero(z)) goto err;
if (!BN_copy(w, rho)) goto err;
for (j = 1; j <= p[0] - 1; j++)
{
if (!BN_GF2m_mod_sqr_arr(z, z, p, ctx)) goto err;
if (!BN_GF2m_mod_sqr_arr(w2, w, p, ctx)) goto err;
if (!BN_GF2m_mod_mul_arr(tmp, w2, a, p, ctx)) goto err;
if (!BN_GF2m_add(z, z, tmp)) goto err;
if (!BN_GF2m_add(w, w2, rho)) goto err;
}
count++;
} while (BN_is_zero(w) && (count < MAX_ITERATIONS));
if (BN_is_zero(w))
{
BNerr(BN_F_BN_GF2M_MOD_SOLVE_QUAD_ARR,BN_R_TOO_MANY_ITERATIONS);
goto err;
}
}
if (!BN_GF2m_mod_sqr_arr(w, z, p, ctx)) goto err;
if (!BN_GF2m_add(w, z, w)) goto err;
if (BN_GF2m_cmp(w, a)) goto err;
if (!BN_copy(r, z)) goto err;
bn_check_top(r);
ret = 1;
err:
BN_CTX_end(ctx);
return ret;
} | https://github.com/openssl/openssl/blob/6defae04f3c44087d9129994fa88b4f9271b153f/crypto/bn/bn_gf2m.c/#L902 |
d2a_code_data_45360 | IMPLEMENT_new_ctx(ofb, OFB, 128) | https://github.com/openssl/openssl/blob/f79858ac4d90a450d0620d1ecb713bc35d7d9f8d/providers/common/ciphers/aes.c/#L300 |
d2a_code_data_45361 | 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/#L103 |
d2a_code_data_45362 | int test_sqr(BIO *bp, BN_CTX *ctx)
{
BIGNUM *a, *c, *d, *e;
int i, ret = 0;
a = BN_new();
c = BN_new();
d = BN_new();
e = BN_new();
if (a == NULL || c == NULL || d == NULL || e == NULL) {
goto err;
}
for (i = 0; i < num0; i++) {
BN_bntest_rand(a, 40 + i * 10, 0, 0);
a->neg = rand_neg();
BN_sqr(c, a, ctx);
if (bp != NULL) {
if (!results) {
BN_print(bp, a);
BIO_puts(bp, " * ");
BN_print(bp, a);
BIO_puts(bp, " - ");
}
BN_print(bp, c);
BIO_puts(bp, "\n");
}
BN_div(d, e, c, a, ctx);
BN_sub(d, d, a);
if (!BN_is_zero(d) || !BN_is_zero(e)) {
fprintf(stderr, "Square test failed!\n");
goto err;
}
}
BN_hex2bn(&a,
"80000000000000008000000000000001"
"FFFFFFFFFFFFFFFE0000000000000000");
BN_sqr(c, a, ctx);
if (bp != NULL) {
if (!results) {
BN_print(bp, a);
BIO_puts(bp, " * ");
BN_print(bp, a);
BIO_puts(bp, " - ");
}
BN_print(bp, c);
BIO_puts(bp, "\n");
}
BN_mul(d, a, a, ctx);
if (BN_cmp(c, d)) {
fprintf(stderr, "Square test failed: BN_sqr and BN_mul produce "
"different results!\n");
goto err;
}
BN_hex2bn(&a,
"80000000000000000000000080000001"
"FFFFFFFE000000000000000000000000");
BN_sqr(c, a, ctx);
if (bp != NULL) {
if (!results) {
BN_print(bp, a);
BIO_puts(bp, " * ");
BN_print(bp, a);
BIO_puts(bp, " - ");
}
BN_print(bp, c);
BIO_puts(bp, "\n");
}
BN_mul(d, a, a, ctx);
if (BN_cmp(c, d)) {
fprintf(stderr, "Square test failed: BN_sqr and BN_mul produce "
"different results!\n");
goto err;
}
ret = 1;
err:
BN_free(a);
BN_free(c);
BN_free(d);
BN_free(e);
return ret;
} | https://github.com/openssl/openssl/blob/ec04e866343d40a1e3e8e5db79557e279a2dd0d8/test/bntest.c/#L734 |
d2a_code_data_45363 | 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/440bce8f813fa661437ce52378c3df38e2fd073b/crypto/bn/bn_lib.c/#L295 |
d2a_code_data_45364 | static int decode_header_trees(SmackVContext *smk) {
GetBitContext gb;
int mmap_size, mclr_size, full_size, type_size;
mmap_size = AV_RL32(smk->avctx->extradata);
mclr_size = AV_RL32(smk->avctx->extradata + 4);
full_size = AV_RL32(smk->avctx->extradata + 8);
type_size = AV_RL32(smk->avctx->extradata + 12);
init_get_bits(&gb, smk->avctx->extradata + 16, (smk->avctx->extradata_size - 16) * 8);
if(!get_bits1(&gb)) {
av_log(smk->avctx, AV_LOG_INFO, "Skipping MMAP tree\n");
smk->mmap_tbl = av_malloc(sizeof(int) * 2);
if (!smk->mmap_tbl)
return AVERROR(ENOMEM);
smk->mmap_tbl[0] = 0;
smk->mmap_last[0] = smk->mmap_last[1] = smk->mmap_last[2] = 1;
} else {
if (smacker_decode_header_tree(smk, &gb, &smk->mmap_tbl, smk->mmap_last, mmap_size))
return -1;
}
if(!get_bits1(&gb)) {
av_log(smk->avctx, AV_LOG_INFO, "Skipping MCLR tree\n");
smk->mclr_tbl = av_malloc(sizeof(int) * 2);
if (!smk->mclr_tbl)
return AVERROR(ENOMEM);
smk->mclr_tbl[0] = 0;
smk->mclr_last[0] = smk->mclr_last[1] = smk->mclr_last[2] = 1;
} else {
if (smacker_decode_header_tree(smk, &gb, &smk->mclr_tbl, smk->mclr_last, mclr_size))
return -1;
}
if(!get_bits1(&gb)) {
av_log(smk->avctx, AV_LOG_INFO, "Skipping FULL tree\n");
smk->full_tbl = av_malloc(sizeof(int) * 2);
if (!smk->full_tbl)
return AVERROR(ENOMEM);
smk->full_tbl[0] = 0;
smk->full_last[0] = smk->full_last[1] = smk->full_last[2] = 1;
} else {
if (smacker_decode_header_tree(smk, &gb, &smk->full_tbl, smk->full_last, full_size))
return -1;
}
if(!get_bits1(&gb)) {
av_log(smk->avctx, AV_LOG_INFO, "Skipping TYPE tree\n");
smk->type_tbl = av_malloc(sizeof(int) * 2);
if (!smk->type_tbl)
return AVERROR(ENOMEM);
smk->type_tbl[0] = 0;
smk->type_last[0] = smk->type_last[1] = smk->type_last[2] = 1;
} else {
if (smacker_decode_header_tree(smk, &gb, &smk->type_tbl, smk->type_last, type_size))
return -1;
}
return 0;
} | https://github.com/libav/libav/blob/77ab341c0c6cdf2bd437bb48d429e797d1e60da2/libavcodec/smacker.c/#L306 |
d2a_code_data_45365 | 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_45366 | static void copy_flags(BIO *bio)
{
int flags;
BIO *next = BIO_next(bio);
flags = BIO_test_flags(next, BIO_FLAGS_SHOULD_RETRY | BIO_FLAGS_RWS);
BIO_clear_flags(bio, BIO_FLAGS_SHOULD_RETRY | BIO_FLAGS_RWS);
BIO_set_flags(bio, flags);
} | https://github.com/openssl/openssl/blob/cbe952418376a25acd872db4281a0b09735001f1/test/ssltestlib.c/#L73 |
d2a_code_data_45367 | static int config_props_output(AVFilterLink *outlink)
{
AVFilterContext *ctx = outlink->src;
TransContext *trans = ctx->priv;
AVFilterLink *inlink = ctx->inputs[0];
const AVPixFmtDescriptor *desc_out = av_pix_fmt_desc_get(outlink->format);
const AVPixFmtDescriptor *desc_in = av_pix_fmt_desc_get(inlink->format);
trans->hsub = desc_in->log2_chroma_w;
trans->vsub = desc_in->log2_chroma_h;
av_image_fill_max_pixsteps(trans->pixsteps, NULL, desc_out);
outlink->w = inlink->h;
outlink->h = inlink->w;
if (inlink->sample_aspect_ratio.num)
outlink->sample_aspect_ratio = av_div_q((AVRational) { 1, 1 },
inlink->sample_aspect_ratio);
else
outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
av_log(ctx, AV_LOG_VERBOSE,
"w:%d h:%d dir:%d -> w:%d h:%d rotation:%s vflip:%d\n",
inlink->w, inlink->h, trans->dir, outlink->w, outlink->h,
trans->dir == 1 || trans->dir == 3 ? "clockwise" : "counterclockwise",
trans->dir == 0 || trans->dir == 3);
return 0;
} | https://github.com/libav/libav/blob/dc0c70e018f6b04488333e7e26ec26359e614e4e/libavfilter/vf_transpose.c/#L94 |
d2a_code_data_45368 | void BN_consttime_swap(BN_ULONG condition, BIGNUM *a, BIGNUM *b, int nwords)
{
BN_ULONG t;
int i;
bn_wcheck_size(a, nwords);
bn_wcheck_size(b, nwords);
assert(a != b);
assert((condition & (condition - 1)) == 0);
assert(sizeof(BN_ULONG) >= sizeof(int));
condition = ((condition - 1) >> (BN_BITS2 - 1)) - 1;
t = (a->top ^ b->top) & condition;
a->top ^= t;
b->top ^= t;
#define BN_CONSTTIME_SWAP(ind) \
do { \
t = (a->d[ind] ^ b->d[ind]) & condition; \
a->d[ind] ^= t; \
b->d[ind] ^= t; \
} while (0)
switch (nwords) {
default:
for (i = 10; i < nwords; i++)
BN_CONSTTIME_SWAP(i);
case 10:
BN_CONSTTIME_SWAP(9);
case 9:
BN_CONSTTIME_SWAP(8);
case 8:
BN_CONSTTIME_SWAP(7);
case 7:
BN_CONSTTIME_SWAP(6);
case 6:
BN_CONSTTIME_SWAP(5);
case 5:
BN_CONSTTIME_SWAP(4);
case 4:
BN_CONSTTIME_SWAP(3);
case 3:
BN_CONSTTIME_SWAP(2);
case 2:
BN_CONSTTIME_SWAP(1);
case 1:
BN_CONSTTIME_SWAP(0);
}
#undef BN_CONSTTIME_SWAP
} | https://github.com/openssl/openssl/blob/d7c42d71ba407a4b3c26ed58263ae225976bbac3/crypto/bn/bn_lib.c/#L863 |
d2a_code_data_45369 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | https://github.com/openssl/openssl/blob/10bc3409459a525654d6b986b3cd49d22dd95460/crypto/bn/bn_ctx.c/#L273 |
d2a_code_data_45370 | MSG_PROCESS_RETURN tls_process_cert_verify(SSL *s, PACKET *pkt)
{
EVP_PKEY *pkey = NULL;
unsigned char *sig, *data;
int al, ret = MSG_PROCESS_ERROR;
int type = 0, j;
unsigned int len;
X509 *peer;
const EVP_MD *md = NULL;
long hdatalen = 0;
void *hdata;
EVP_MD_CTX *mctx = EVP_MD_CTX_new();
if (mctx == NULL) {
SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, ERR_R_MALLOC_FAILURE);
al = SSL_AD_INTERNAL_ERROR;
goto f_err;
}
peer = s->session->peer;
pkey = X509_get0_pubkey(peer);
type = X509_certificate_type(peer, pkey);
if (!(type & EVP_PKT_SIGN)) {
SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY,
SSL_R_SIGNATURE_FOR_NON_SIGNING_CERTIFICATE);
al = SSL_AD_ILLEGAL_PARAMETER;
goto f_err;
}
#ifndef OPENSSL_NO_GOST
if (PACKET_remaining(pkt) == 64 && pkey->type == NID_id_GostR3410_2001) {
len = 64;
} else
#endif
{
if (SSL_USE_SIGALGS(s)) {
int rv;
if (!PACKET_get_bytes(pkt, &sig, 2)) {
al = SSL_AD_DECODE_ERROR;
goto f_err;
}
rv = tls12_check_peer_sigalg(&md, s, sig, 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
} else {
int idx = ssl_cert_type(NULL, pkey);
if (idx >= 0)
md = s->s3->tmp.md[idx];
if (md == NULL) {
al = SSL_AD_INTERNAL_ERROR;
goto f_err;
}
}
if (!PACKET_get_net_2(pkt, &len)) {
SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, SSL_R_LENGTH_MISMATCH);
al = SSL_AD_DECODE_ERROR;
goto f_err;
}
}
j = EVP_PKEY_size(pkey);
if (((int)len > j) || ((int)PACKET_remaining(pkt) > j)
|| (PACKET_remaining(pkt) == 0)) {
SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, SSL_R_WRONG_SIGNATURE_SIZE);
al = SSL_AD_DECODE_ERROR;
goto f_err;
}
if (!PACKET_get_bytes(pkt, &data, len)) {
SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, SSL_R_LENGTH_MISMATCH);
al = SSL_AD_DECODE_ERROR;
goto f_err;
}
hdatalen = BIO_get_mem_data(s->s3->handshake_buffer, &hdata);
if (hdatalen <= 0) {
SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, ERR_R_INTERNAL_ERROR);
al = SSL_AD_INTERNAL_ERROR;
goto f_err;
}
#ifdef SSL_DEBUG
fprintf(stderr, "Using 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_TLS_PROCESS_CERT_VERIFY, ERR_R_EVP_LIB);
al = SSL_AD_INTERNAL_ERROR;
goto f_err;
}
#ifndef OPENSSL_NO_GOST
if (pkey->type == NID_id_GostR3410_2001
|| pkey->type == NID_id_GostR3410_2012_256
|| pkey->type == NID_id_GostR3410_2012_512) {
BUF_reverse(data, NULL, len);
}
#endif
if (s->version == SSL3_VERSION
&& !EVP_MD_CTX_ctrl(mctx, EVP_CTRL_SSL3_MASTER_SECRET,
s->session->master_key_length,
s->session->master_key)) {
SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, ERR_R_EVP_LIB);
al = SSL_AD_INTERNAL_ERROR;
goto f_err;
}
if (EVP_VerifyFinal(mctx, data, len, pkey) <= 0) {
al = SSL_AD_DECRYPT_ERROR;
SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, SSL_R_BAD_SIGNATURE);
goto f_err;
}
ret = MSG_PROCESS_CONTINUE_PROCESSING;
if (0) {
f_err:
ssl3_send_alert(s, SSL3_AL_FATAL, al);
ossl_statem_set_error(s);
}
BIO_free(s->s3->handshake_buffer);
s->s3->handshake_buffer = NULL;
EVP_MD_CTX_free(mctx);
return ret;
} | https://github.com/openssl/openssl/blob/ec04e866343d40a1e3e8e5db79557e279a2dd0d8/ssl/statem/statem_srvr.c/#L2685 |
d2a_code_data_45371 | static TS_VERIFY_CTX *create_verify_ctx(char *data, char *digest,
char *queryfile,
char *CApath, char *CAfile,
char *untrusted,
X509_VERIFY_PARAM *vpm)
{
TS_VERIFY_CTX *ctx = NULL;
BIO *input = NULL;
TS_REQ *request = NULL;
int ret = 0;
int f = 0;
if (data != NULL || digest != NULL) {
if ((ctx = TS_VERIFY_CTX_new()) == NULL)
goto err;
f = TS_VFY_VERSION | TS_VFY_SIGNER;
if (data != NULL) {
f |= TS_VFY_DATA;
if (TS_VERIFY_CTX_set_data(ctx, BIO_new_file(data, "rb")) == NULL)
goto err;
} else if (digest != NULL) {
long imprint_len;
unsigned char *hexstr = string_to_hex(digest, &imprint_len);
f |= TS_VFY_IMPRINT;
if (TS_VERIFY_CTX_set_imprint(ctx, hexstr, imprint_len) == NULL) {
BIO_printf(bio_err, "invalid digest string\n");
goto err;
}
}
} else if (queryfile != NULL) {
if ((input = BIO_new_file(queryfile, "rb")) == NULL)
goto err;
if ((request = d2i_TS_REQ_bio(input, NULL)) == NULL)
goto err;
if ((ctx = TS_REQ_to_TS_VERIFY_CTX(request, NULL)) == NULL)
goto err;
} else
return NULL;
TS_VERIFY_CTX_add_flags(ctx, f | TS_VFY_SIGNATURE);
if (TS_VERIFY_CTX_set_store(ctx, create_cert_store(CApath, CAfile, vpm))
== NULL)
goto err;
if (untrusted
&& TS_VERIFY_CTS_set_certs(ctx, TS_CONF_load_certs(untrusted)) == NULL)
goto err;
ret = 1;
err:
if (!ret) {
TS_VERIFY_CTX_free(ctx);
ctx = NULL;
}
BIO_free_all(input);
TS_REQ_free(request);
return ctx;
} | https://github.com/openssl/openssl/blob/6457615ac82d688a965c9b2cce9611e0559635be/apps/ts.c/#L976 |
d2a_code_data_45372 | void
ngx_slab_free_locked(ngx_slab_pool_t *pool, void *p)
{
size_t size;
uintptr_t slab, m, *bitmap;
ngx_uint_t n, type, slot, shift, map;
ngx_slab_page_t *slots, *page;
ngx_log_debug1(NGX_LOG_DEBUG_ALLOC, ngx_cycle->log, 0, "slab free: %p", p);
if ((u_char *) p < pool->start || (u_char *) p > pool->end) {
ngx_slab_error(pool, NGX_LOG_ALERT, "ngx_slab_free(): outside of pool");
goto fail;
}
n = ((u_char *) p - pool->start) >> ngx_pagesize_shift;
page = &pool->pages[n];
slab = page->slab;
type = page->prev & NGX_SLAB_PAGE_MASK;
switch (type) {
case NGX_SLAB_SMALL:
shift = slab & NGX_SLAB_SHIFT_MASK;
size = 1 << shift;
if ((uintptr_t) p & (size - 1)) {
goto wrong_chunk;
}
n = ((uintptr_t) p & (ngx_pagesize - 1)) >> shift;
m = (uintptr_t) 1 << (n & (sizeof(uintptr_t) * 8 - 1));
n /= (sizeof(uintptr_t) * 8);
bitmap = (uintptr_t *) ((uintptr_t) p & ~(ngx_pagesize - 1));
if (bitmap[n] & m) {
if (page->next == NULL) {
slots = (ngx_slab_page_t *)
((u_char *) pool + sizeof(ngx_slab_pool_t));
slot = shift - pool->min_shift;
page->next = slots[slot].next;
slots[slot].next = page;
page->prev = (uintptr_t) &slots[slot] | NGX_SLAB_SMALL;
page->next->prev = (uintptr_t) page | NGX_SLAB_SMALL;
}
bitmap[n] &= ~m;
n = (1 << (ngx_pagesize_shift - shift)) / 8 / (1 << shift);
if (n == 0) {
n = 1;
}
if (bitmap[0] & ~(((uintptr_t) 1 << n) - 1)) {
goto done;
}
map = (1 << (ngx_pagesize_shift - shift)) / (sizeof(uintptr_t) * 8);
for (n = 1; n < map; n++) {
if (bitmap[n]) {
goto done;
}
}
ngx_slab_free_pages(pool, page, 1);
goto done;
}
goto chunk_already_free;
case NGX_SLAB_EXACT:
m = (uintptr_t) 1 <<
(((uintptr_t) p & (ngx_pagesize - 1)) >> ngx_slab_exact_shift);
size = ngx_slab_exact_size;
if ((uintptr_t) p & (size - 1)) {
goto wrong_chunk;
}
if (slab & m) {
if (slab == NGX_SLAB_BUSY) {
slots = (ngx_slab_page_t *)
((u_char *) pool + sizeof(ngx_slab_pool_t));
slot = ngx_slab_exact_shift - pool->min_shift;
page->next = slots[slot].next;
slots[slot].next = page;
page->prev = (uintptr_t) &slots[slot] | NGX_SLAB_EXACT;
page->next->prev = (uintptr_t) page | NGX_SLAB_EXACT;
}
page->slab &= ~m;
if (page->slab) {
goto done;
}
ngx_slab_free_pages(pool, page, 1);
goto done;
}
goto chunk_already_free;
case NGX_SLAB_BIG:
shift = slab & NGX_SLAB_SHIFT_MASK;
size = 1 << shift;
if ((uintptr_t) p & (size - 1)) {
goto wrong_chunk;
}
m = (uintptr_t) 1 << ((((uintptr_t) p & (ngx_pagesize - 1)) >> shift)
+ NGX_SLAB_MAP_SHIFT);
if (slab & m) {
if (page->next == NULL) {
slots = (ngx_slab_page_t *)
((u_char *) pool + sizeof(ngx_slab_pool_t));
slot = shift - pool->min_shift;
page->next = slots[slot].next;
slots[slot].next = page;
page->prev = (uintptr_t) &slots[slot] | NGX_SLAB_BIG;
page->next->prev = (uintptr_t) page | NGX_SLAB_BIG;
}
page->slab &= ~m;
if (page->slab & NGX_SLAB_MAP_MASK) {
goto done;
}
ngx_slab_free_pages(pool, page, 1);
goto done;
}
goto chunk_already_free;
case NGX_SLAB_PAGE:
if ((uintptr_t) p & (ngx_pagesize - 1)) {
goto wrong_chunk;
}
if (slab == NGX_SLAB_PAGE_FREE) {
ngx_slab_error(pool, NGX_LOG_ALERT,
"ngx_slab_free(): page is already free");
goto fail;
}
if (slab == NGX_SLAB_PAGE_BUSY) {
ngx_slab_error(pool, NGX_LOG_ALERT,
"ngx_slab_free(): pointer to wrong page");
goto fail;
}
n = ((u_char *) p - pool->start) >> ngx_pagesize_shift;
size = slab & ~NGX_SLAB_PAGE_START;
ngx_slab_free_pages(pool, &pool->pages[n], size);
ngx_slab_junk(p, size << ngx_pagesize_shift);
return;
}
return;
done:
ngx_slab_junk(p, size);
return;
wrong_chunk:
ngx_slab_error(pool, NGX_LOG_ALERT,
"ngx_slab_free(): pointer to wrong chunk");
goto fail;
chunk_already_free:
ngx_slab_error(pool, NGX_LOG_ALERT,
"ngx_slab_free(): chunk is already free");
fail:
return;
} | https://github.com/nginx/nginx/blob/e4ecddfdb0d2ffc872658e36028971ad9a873726/src/core/ngx_slab.c/#L464 |
d2a_code_data_45373 | int test_gf2m_add(BIO *bp)
{
BIGNUM *a, *b, *c;
int i, ret = 0;
a = BN_new();
b = BN_new();
c = BN_new();
for (i = 0; i < num0; i++) {
BN_rand(a, 512, 0, 0);
BN_copy(b, BN_value_one());
a->neg = rand_neg();
b->neg = rand_neg();
BN_GF2m_add(c, a, b);
if ((BN_is_odd(a) && BN_is_odd(c))
|| (!BN_is_odd(a) && !BN_is_odd(c))) {
fprintf(stderr, "GF(2^m) addition test (a) failed!\n");
goto err;
}
BN_GF2m_add(c, c, c);
if (!BN_is_zero(c)) {
fprintf(stderr, "GF(2^m) addition test (b) failed!\n");
goto err;
}
}
ret = 1;
err:
BN_free(a);
BN_free(b);
BN_free(c);
return ret;
} | https://github.com/openssl/openssl/blob/ec04e866343d40a1e3e8e5db79557e279a2dd0d8/test/bntest.c/#L1263 |
d2a_code_data_45374 | 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_45375 | static inline int pred_non_zero_count(H264Context *h, int n){
const int index8= scan8[n];
const int left= h->non_zero_count_cache[index8 - 1];
const int top = h->non_zero_count_cache[index8 - 8];
int i= left + top;
if(i<64) i= (i+1)>>1;
tprintf(h->s.avctx, "pred_nnz L%X T%X n%d s%d P%X\n", left, top, n, scan8[n], i&31);
return i&31;
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/h264.c/#L679 |
d2a_code_data_45376 | 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; i <= (INT_MAX/4) && isxdigit((unsigned char)a[i]); i++)
continue;
if (i == 0 || i > INT_MAX/4)
goto err;
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];
k = OPENSSL_hexchar2int(c);
if (k < 0)
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);
*bn = ret;
bn_check_top(ret);
if (ret->top != 0)
ret->neg = neg;
return (num);
err:
if (*bn == NULL)
BN_free(ret);
return (0);
} | https://github.com/openssl/openssl/blob/3f97052392cb10fca5309212bf720685262ad4a6/crypto/bn/bn_print.c/#L139 |
d2a_code_data_45377 | int ff_h264_find_frame_end(H264Context *h, const uint8_t *buf, int buf_size)
{
int i;
uint32_t state;
ParseContext *pc = &(h->s.parse_context);
state= pc->state;
if(state>13)
state= 7;
for(i=0; i<buf_size; i++){
if(state==7){
for(; i<buf_size; i++){
if(!buf[i]){
state=2;
break;
}
}
}else if(state<=2){
if(buf[i]==1) state^= 5;
else if(buf[i]) state = 7;
else state>>=1;
}else if(state<=5){
int v= buf[i] & 0x1F;
if(v==7 || v==8 || v==9){
if(pc->frame_start_found){
i++;
found:
pc->state=7;
pc->frame_start_found= 0;
return i-(state&5);
}
}else if(v==1 || v==2 || v==5){
if(pc->frame_start_found){
state+=8;
continue;
}else
pc->frame_start_found = 1;
}
state= 7;
}else{
if(buf[i] & 0x80)
goto found;
state= 7;
}
}
pc->state= state;
return END_NOT_FOUND;
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/h264_parser.c/#L65 |
d2a_code_data_45378 | static int read_sl_header(PESContext *pes, SLConfigDescr *sl,
const uint8_t *buf, int buf_size)
{
GetBitContext gb;
int au_start_flag = 0, au_end_flag = 0, ocr_flag = 0, idle_flag = 0;
int padding_flag = 0, padding_bits = 0, inst_bitrate_flag = 0;
int dts_flag = -1, cts_flag = -1;
int64_t dts = AV_NOPTS_VALUE, cts = AV_NOPTS_VALUE;
init_get_bits(&gb, buf, buf_size * 8);
if (sl->use_au_start)
au_start_flag = get_bits1(&gb);
if (sl->use_au_end)
au_end_flag = get_bits1(&gb);
if (!sl->use_au_start && !sl->use_au_end)
au_start_flag = au_end_flag = 1;
if (sl->ocr_len > 0)
ocr_flag = get_bits1(&gb);
if (sl->use_idle)
idle_flag = get_bits1(&gb);
if (sl->use_padding)
padding_flag = get_bits1(&gb);
if (padding_flag)
padding_bits = get_bits(&gb, 3);
if (!idle_flag && (!padding_flag || padding_bits != 0)) {
if (sl->packet_seq_num_len)
skip_bits_long(&gb, sl->packet_seq_num_len);
if (sl->degr_prior_len)
if (get_bits1(&gb))
skip_bits(&gb, sl->degr_prior_len);
if (ocr_flag)
skip_bits_long(&gb, sl->ocr_len);
if (au_start_flag) {
if (sl->use_rand_acc_pt)
get_bits1(&gb);
if (sl->au_seq_num_len > 0)
skip_bits_long(&gb, sl->au_seq_num_len);
if (sl->use_timestamps) {
dts_flag = get_bits1(&gb);
cts_flag = get_bits1(&gb);
}
}
if (sl->inst_bitrate_len)
inst_bitrate_flag = get_bits1(&gb);
if (dts_flag == 1)
dts = get_bits64(&gb, sl->timestamp_len);
if (cts_flag == 1)
cts = get_bits64(&gb, sl->timestamp_len);
if (sl->au_len > 0)
skip_bits_long(&gb, sl->au_len);
if (inst_bitrate_flag)
skip_bits_long(&gb, sl->inst_bitrate_len);
}
if (dts != AV_NOPTS_VALUE)
pes->dts = dts;
if (cts != AV_NOPTS_VALUE)
pes->pts = cts;
if (sl->timestamp_len && sl->timestamp_res)
avpriv_set_pts_info(pes->st, sl->timestamp_len, 1, sl->timestamp_res);
return (get_bits_count(&gb) + 7) >> 3;
} | https://github.com/libav/libav/blob/77ab341c0c6cdf2bd437bb48d429e797d1e60da2/libavformat/mpegts.c/#L747 |
d2a_code_data_45379 | 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/49cd47eaababc8c57871b929080fc1357e2ad7b8/crypto/bn/bn_lib.c/#L233 |
d2a_code_data_45380 | static void build_file_streams(void)
{
FFStream *stream, *stream_next;
int i, ret;
for(stream = first_stream; stream != NULL; stream = stream_next) {
AVFormatContext *infile = NULL;
stream_next = stream->next;
if (stream->stream_type == STREAM_TYPE_LIVE &&
!stream->feed) {
if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
av_dict_set(&stream->in_opts, "mpeg2ts_compute_pcr", "1", 0);
}
http_log("Opening file '%s'\n", stream->feed_filename);
if ((ret = avformat_open_input(&infile, stream->feed_filename, stream->ifmt, &stream->in_opts)) < 0) {
http_log("Could not open '%s': %d\n", stream->feed_filename, ret);
fail:
remove_stream(stream);
} else {
if (avformat_find_stream_info(infile, NULL) < 0) {
http_log("Could not find codec parameters from '%s'\n",
stream->feed_filename);
avformat_close_input(&infile);
goto fail;
}
extract_mpeg4_header(infile);
for(i=0;i<infile->nb_streams;i++)
add_av_stream1(stream, infile->streams[i]->codec, 1);
avformat_close_input(&infile);
}
}
}
} | https://github.com/libav/libav/blob/e46ad30a808744ddf3855567e162292a4eaabac7/avserver.c/#L3617 |
d2a_code_data_45381 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | https://github.com/openssl/openssl/blob/0282aeb690d63fab73a07191b63300a2fe30d212/crypto/bn/bn_ctx.c/#L273 |
d2a_code_data_45382 | void ssl3_cbc_digest_record(const EVP_MD_CTX *ctx,
unsigned char *md_out,
size_t *md_out_size,
const unsigned char header[13],
const unsigned char *data,
size_t data_plus_mac_size,
size_t data_plus_mac_plus_padding_size,
const unsigned char *mac_secret,
unsigned mac_secret_length, char is_sslv3)
{
union {
double align;
unsigned char c[sizeof(LARGEST_DIGEST_CTX)];
} md_state;
void (*md_final_raw) (void *ctx, unsigned char *md_out);
void (*md_transform) (void *ctx, const unsigned char *block);
unsigned md_size, md_block_size = 64;
unsigned sslv3_pad_length = 40, header_length, variance_blocks,
len, max_mac_bytes, num_blocks,
num_starting_blocks, k, mac_end_offset, c, index_a, index_b;
unsigned int bits;
unsigned char length_bytes[MAX_HASH_BIT_COUNT_BYTES];
unsigned char hmac_pad[MAX_HASH_BLOCK_SIZE];
unsigned char first_block[MAX_HASH_BLOCK_SIZE];
unsigned char mac_out[EVP_MAX_MD_SIZE];
unsigned i, j, md_out_size_u;
EVP_MD_CTX md_ctx;
unsigned md_length_size = 8;
char length_is_big_endian = 1;
int ret;
OPENSSL_assert(data_plus_mac_plus_padding_size < 1024 * 1024);
switch (EVP_MD_CTX_type(ctx)) {
case NID_md5:
MD5_Init((MD5_CTX *)md_state.c);
md_final_raw = tls1_md5_final_raw;
md_transform =
(void (*)(void *ctx, const unsigned char *block))MD5_Transform;
md_size = 16;
sslv3_pad_length = 48;
length_is_big_endian = 0;
break;
case NID_sha1:
SHA1_Init((SHA_CTX *)md_state.c);
md_final_raw = tls1_sha1_final_raw;
md_transform =
(void (*)(void *ctx, const unsigned char *block))SHA1_Transform;
md_size = 20;
break;
#ifndef OPENSSL_NO_SHA256
case NID_sha224:
SHA224_Init((SHA256_CTX *)md_state.c);
md_final_raw = tls1_sha256_final_raw;
md_transform =
(void (*)(void *ctx, const unsigned char *block))SHA256_Transform;
md_size = 224 / 8;
break;
case NID_sha256:
SHA256_Init((SHA256_CTX *)md_state.c);
md_final_raw = tls1_sha256_final_raw;
md_transform =
(void (*)(void *ctx, const unsigned char *block))SHA256_Transform;
md_size = 32;
break;
#endif
#ifndef OPENSSL_NO_SHA512
case NID_sha384:
SHA384_Init((SHA512_CTX *)md_state.c);
md_final_raw = tls1_sha512_final_raw;
md_transform =
(void (*)(void *ctx, const unsigned char *block))SHA512_Transform;
md_size = 384 / 8;
md_block_size = 128;
md_length_size = 16;
break;
case NID_sha512:
SHA512_Init((SHA512_CTX *)md_state.c);
md_final_raw = tls1_sha512_final_raw;
md_transform =
(void (*)(void *ctx, const unsigned char *block))SHA512_Transform;
md_size = 64;
md_block_size = 128;
md_length_size = 16;
break;
#endif
default:
OPENSSL_assert(0);
if (md_out_size)
*md_out_size = -1;
return;
}
OPENSSL_assert(md_length_size <= MAX_HASH_BIT_COUNT_BYTES);
OPENSSL_assert(md_block_size <= MAX_HASH_BLOCK_SIZE);
OPENSSL_assert(md_size <= EVP_MAX_MD_SIZE);
header_length = 13;
if (is_sslv3) {
header_length = mac_secret_length + sslv3_pad_length + 8 +
1 +
2 ;
}
variance_blocks = is_sslv3 ? 2 : 6;
len = data_plus_mac_plus_padding_size + header_length;
max_mac_bytes = len - md_size - 1;
num_blocks =
(max_mac_bytes + 1 + md_length_size + md_block_size -
1) / md_block_size;
num_starting_blocks = 0;
k = 0;
mac_end_offset = data_plus_mac_size + header_length - md_size;
c = mac_end_offset % md_block_size;
index_a = mac_end_offset / md_block_size;
index_b = (mac_end_offset + md_length_size) / md_block_size;
if (num_blocks > variance_blocks + (is_sslv3 ? 1 : 0)) {
num_starting_blocks = num_blocks - variance_blocks;
k = md_block_size * num_starting_blocks;
}
bits = 8 * mac_end_offset;
if (!is_sslv3) {
bits += 8 * md_block_size;
memset(hmac_pad, 0, md_block_size);
OPENSSL_assert(mac_secret_length <= sizeof(hmac_pad));
memcpy(hmac_pad, mac_secret, mac_secret_length);
for (i = 0; i < md_block_size; i++)
hmac_pad[i] ^= 0x36;
md_transform(md_state.c, hmac_pad);
}
if (length_is_big_endian) {
memset(length_bytes, 0, md_length_size - 4);
length_bytes[md_length_size - 4] = (unsigned char)(bits >> 24);
length_bytes[md_length_size - 3] = (unsigned char)(bits >> 16);
length_bytes[md_length_size - 2] = (unsigned char)(bits >> 8);
length_bytes[md_length_size - 1] = (unsigned char)bits;
} else {
memset(length_bytes, 0, md_length_size);
length_bytes[md_length_size - 5] = (unsigned char)(bits >> 24);
length_bytes[md_length_size - 6] = (unsigned char)(bits >> 16);
length_bytes[md_length_size - 7] = (unsigned char)(bits >> 8);
length_bytes[md_length_size - 8] = (unsigned char)bits;
}
if (k > 0) {
if (is_sslv3) {
unsigned overhang = header_length - md_block_size;
md_transform(md_state.c, header);
memcpy(first_block, header + md_block_size, overhang);
memcpy(first_block + overhang, data, md_block_size - overhang);
md_transform(md_state.c, first_block);
for (i = 1; i < k / md_block_size - 1; i++)
md_transform(md_state.c, data + md_block_size * i - overhang);
} else {
memcpy(first_block, header, 13);
memcpy(first_block + 13, data, md_block_size - 13);
md_transform(md_state.c, first_block);
for (i = 1; i < k / md_block_size; i++)
md_transform(md_state.c, data + md_block_size * i - 13);
}
}
memset(mac_out, 0, sizeof(mac_out));
for (i = num_starting_blocks; i <= num_starting_blocks + variance_blocks;
i++) {
unsigned char block[MAX_HASH_BLOCK_SIZE];
unsigned char is_block_a = constant_time_eq_8(i, index_a);
unsigned char is_block_b = constant_time_eq_8(i, index_b);
for (j = 0; j < md_block_size; j++) {
unsigned char b = 0, is_past_c, is_past_cp1;
if (k < header_length)
b = header[k];
else if (k < data_plus_mac_plus_padding_size + header_length)
b = data[k - header_length];
k++;
is_past_c = is_block_a & constant_time_ge_8(j, c);
is_past_cp1 = is_block_a & constant_time_ge_8(j, c + 1);
b = constant_time_select_8(is_past_c, 0x80, b);
b = b & ~is_past_cp1;
b &= ~is_block_b | is_block_a;
if (j >= md_block_size - md_length_size) {
b = constant_time_select_8(is_block_b,
length_bytes[j -
(md_block_size -
md_length_size)], b);
}
block[j] = b;
}
md_transform(md_state.c, block);
md_final_raw(md_state.c, block);
for (j = 0; j < md_size; j++)
mac_out[j] |= block[j] & is_block_b;
}
EVP_MD_CTX_init(&md_ctx);
EVP_DigestInit_ex(&md_ctx, ctx->digest, NULL );
if (is_sslv3) {
memset(hmac_pad, 0x5c, sslv3_pad_length);
EVP_DigestUpdate(&md_ctx, mac_secret, mac_secret_length);
EVP_DigestUpdate(&md_ctx, hmac_pad, sslv3_pad_length);
EVP_DigestUpdate(&md_ctx, mac_out, md_size);
} else {
for (i = 0; i < md_block_size; i++)
hmac_pad[i] ^= 0x6a;
EVP_DigestUpdate(&md_ctx, hmac_pad, md_block_size);
EVP_DigestUpdate(&md_ctx, mac_out, md_size);
}
ret = EVP_DigestFinal(&md_ctx, md_out, &md_out_size_u);
if (ret && md_out_size)
*md_out_size = md_out_size_u;
EVP_MD_CTX_cleanup(&md_ctx);
} | https://github.com/openssl/openssl/blob/9c46f4b9cd4912b61cb546c48b678488d7f26ed6/ssl/s3_cbc.c/#L644 |
d2a_code_data_45383 | static int opt_preset(const char *opt, const char *arg)
{
FILE *f=NULL;
char filename[1000], tmp[1000], tmp2[1000], line[1000];
char *codec_name = *opt == 'v' ? video_codec_name :
*opt == 'a' ? audio_codec_name :
subtitle_codec_name;
if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
fprintf(stderr, "File for preset '%s' not found\n", arg);
ffmpeg_exit(1);
}
while(!feof(f)){
int e= fscanf(f, "%999[^\n]\n", line) - 1;
if(line[0] == '#' && !e)
continue;
e|= sscanf(line, "%999[^=]=%999[^\n]\n", tmp, tmp2) - 2;
if(e){
fprintf(stderr, "%s: Invalid syntax: '%s'\n", filename, line);
ffmpeg_exit(1);
}
if(!strcmp(tmp, "acodec")){
opt_audio_codec(tmp2);
}else if(!strcmp(tmp, "vcodec")){
opt_video_codec(tmp2);
}else if(!strcmp(tmp, "scodec")){
opt_subtitle_codec(tmp2);
}else if(!strcmp(tmp, "dcodec")){
opt_data_codec(tmp2);
}else if(opt_default(tmp, tmp2) < 0){
fprintf(stderr, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n", filename, line, tmp, tmp2);
ffmpeg_exit(1);
}
}
fclose(f);
return 0;
} | https://github.com/libav/libav/blob/5da116a3fde9013846bd7b385cdde5ce2951869c/ffmpeg.c/#L4194 |
d2a_code_data_45384 | static inline int w_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int w, int h, int type){
int s, i, j;
const int dec_count= w==8 ? 3 : 4;
int tmp[32*32];
int level, ori;
static const int scale[2][2][4][4]={
{
{
{268, 239, 239, 213},
{ 0, 224, 224, 152},
{ 0, 135, 135, 110},
},{
{344, 310, 310, 280},
{ 0, 320, 320, 228},
{ 0, 175, 175, 136},
{ 0, 129, 129, 102},
}
},{
{
{275, 245, 245, 218},
{ 0, 230, 230, 156},
{ 0, 138, 138, 113},
},{
{352, 317, 317, 286},
{ 0, 328, 328, 233},
{ 0, 180, 180, 140},
{ 0, 132, 132, 105},
}
}
};
for (i = 0; i < h; i++) {
for (j = 0; j < w; j+=4) {
tmp[32*i+j+0] = (pix1[j+0] - pix2[j+0])<<4;
tmp[32*i+j+1] = (pix1[j+1] - pix2[j+1])<<4;
tmp[32*i+j+2] = (pix1[j+2] - pix2[j+2])<<4;
tmp[32*i+j+3] = (pix1[j+3] - pix2[j+3])<<4;
}
pix1 += line_size;
pix2 += line_size;
}
ff_spatial_dwt(tmp, w, h, 32, type, dec_count);
s=0;
assert(w==h);
for(level=0; level<dec_count; level++){
for(ori= level ? 1 : 0; ori<4; ori++){
int size= w>>(dec_count-level);
int sx= (ori&1) ? size : 0;
int stride= 32<<(dec_count-level);
int sy= (ori&2) ? stride>>1 : 0;
for(i=0; i<size; i++){
for(j=0; j<size; j++){
int v= tmp[sx + sy + i*stride + j] * scale[type][dec_count-3][level][ori];
s += FFABS(v);
}
}
}
}
assert(s>=0);
return s>>9;
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/dsputil.c/#L376 |
d2a_code_data_45385 | 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/#L1167 |
d2a_code_data_45386 | static int opt_preset(const char *opt, const char *arg)
{
FILE *f=NULL;
char filename[1000], tmp[1000], tmp2[1000], line[1000];
char *codec_name = *opt == 'v' ? video_codec_name :
*opt == 'a' ? audio_codec_name :
subtitle_codec_name;
if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
fprintf(stderr, "File for preset '%s' not found\n", arg);
ffmpeg_exit(1);
}
while(!feof(f)){
int e= fscanf(f, "%999[^\n]\n", line) - 1;
if(line[0] == '#' && !e)
continue;
e|= sscanf(line, "%999[^=]=%999[^\n]\n", tmp, tmp2) - 2;
if(e){
fprintf(stderr, "%s: Invalid syntax: '%s'\n", filename, line);
ffmpeg_exit(1);
}
if(!strcmp(tmp, "acodec")){
opt_audio_codec(tmp2);
}else if(!strcmp(tmp, "vcodec")){
opt_video_codec(tmp2);
}else if(!strcmp(tmp, "scodec")){
opt_subtitle_codec(tmp2);
}else if(opt_default(tmp, tmp2) < 0){
fprintf(stderr, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n", filename, line, tmp, tmp2);
ffmpeg_exit(1);
}
}
fclose(f);
return 0;
} | https://github.com/libav/libav/blob/f4c79d1e0b2e797012304db57903e4091b0c2d7c/ffmpeg.c/#L4152 |
d2a_code_data_45387 | int av_new_packet(AVPacket *pkt, int size)
{
uint8_t *data;
if((unsigned)size > (unsigned)size + FF_INPUT_BUFFER_PADDING_SIZE)
return AVERROR(ENOMEM);
data = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
if (!data)
return AVERROR(ENOMEM);
memset(data + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
av_init_packet(pkt);
pkt->data = data;
pkt->size = size;
pkt->destruct = av_destruct_packet;
return 0;
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavformat/utils.c/#L210 |
d2a_code_data_45388 | static av_always_inline int cmp(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
const int size, const int h, int ref_index, int src_index,
me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){
MotionEstContext * const c= &s->me;
const int stride= c->stride;
const int uvstride= c->uvstride;
const int qpel= flags&FLAG_QPEL;
const int chroma= flags&FLAG_CHROMA;
const int dxy= subx + (suby<<(1+qpel));
const int hx= subx + (x<<(1+qpel));
const int hy= suby + (y<<(1+qpel));
uint8_t * const * const ref= c->ref[ref_index];
uint8_t * const * const src= c->src[src_index];
int d;
if(flags&FLAG_DIRECT){
assert(x >= c->xmin && hx <= c->xmax<<(qpel+1) && y >= c->ymin && hy <= c->ymax<<(qpel+1));
if(x >= c->xmin && hx <= c->xmax<<(qpel+1) && y >= c->ymin && hy <= c->ymax<<(qpel+1)){
const int time_pp= s->pp_time;
const int time_pb= s->pb_time;
const int mask= 2*qpel+1;
if(s->mv_type==MV_TYPE_8X8){
int i;
for(i=0; i<4; i++){
int fx = c->direct_basis_mv[i][0] + hx;
int fy = c->direct_basis_mv[i][1] + hy;
int bx = hx ? fx - c->co_located_mv[i][0] : c->co_located_mv[i][0]*(time_pb - time_pp)/time_pp + ((i &1)<<(qpel+4));
int by = hy ? fy - c->co_located_mv[i][1] : c->co_located_mv[i][1]*(time_pb - time_pp)/time_pp + ((i>>1)<<(qpel+4));
int fxy= (fx&mask) + ((fy&mask)<<(qpel+1));
int bxy= (bx&mask) + ((by&mask)<<(qpel+1));
uint8_t *dst= c->temp + 8*(i&1) + 8*stride*(i>>1);
if(qpel){
c->qpel_put[1][fxy](dst, ref[0] + (fx>>2) + (fy>>2)*stride, stride);
c->qpel_avg[1][bxy](dst, ref[8] + (bx>>2) + (by>>2)*stride, stride);
}else{
c->hpel_put[1][fxy](dst, ref[0] + (fx>>1) + (fy>>1)*stride, stride, 8);
c->hpel_avg[1][bxy](dst, ref[8] + (bx>>1) + (by>>1)*stride, stride, 8);
}
}
}else{
int fx = c->direct_basis_mv[0][0] + hx;
int fy = c->direct_basis_mv[0][1] + hy;
int bx = hx ? fx - c->co_located_mv[0][0] : (c->co_located_mv[0][0]*(time_pb - time_pp)/time_pp);
int by = hy ? fy - c->co_located_mv[0][1] : (c->co_located_mv[0][1]*(time_pb - time_pp)/time_pp);
int fxy= (fx&mask) + ((fy&mask)<<(qpel+1));
int bxy= (bx&mask) + ((by&mask)<<(qpel+1));
if(qpel){
c->qpel_put[1][fxy](c->temp , ref[0] + (fx>>2) + (fy>>2)*stride , stride);
c->qpel_put[1][fxy](c->temp + 8 , ref[0] + (fx>>2) + (fy>>2)*stride + 8 , stride);
c->qpel_put[1][fxy](c->temp + 8*stride, ref[0] + (fx>>2) + (fy>>2)*stride + 8*stride, stride);
c->qpel_put[1][fxy](c->temp + 8 + 8*stride, ref[0] + (fx>>2) + (fy>>2)*stride + 8 + 8*stride, stride);
c->qpel_avg[1][bxy](c->temp , ref[8] + (bx>>2) + (by>>2)*stride , stride);
c->qpel_avg[1][bxy](c->temp + 8 , ref[8] + (bx>>2) + (by>>2)*stride + 8 , stride);
c->qpel_avg[1][bxy](c->temp + 8*stride, ref[8] + (bx>>2) + (by>>2)*stride + 8*stride, stride);
c->qpel_avg[1][bxy](c->temp + 8 + 8*stride, ref[8] + (bx>>2) + (by>>2)*stride + 8 + 8*stride, stride);
}else{
assert((fx>>1) + 16*s->mb_x >= -16);
assert((fy>>1) + 16*s->mb_y >= -16);
assert((fx>>1) + 16*s->mb_x <= s->width);
assert((fy>>1) + 16*s->mb_y <= s->height);
assert((bx>>1) + 16*s->mb_x >= -16);
assert((by>>1) + 16*s->mb_y >= -16);
assert((bx>>1) + 16*s->mb_x <= s->width);
assert((by>>1) + 16*s->mb_y <= s->height);
c->hpel_put[0][fxy](c->temp, ref[0] + (fx>>1) + (fy>>1)*stride, stride, 16);
c->hpel_avg[0][bxy](c->temp, ref[8] + (bx>>1) + (by>>1)*stride, stride, 16);
}
}
d = cmp_func(s, c->temp, src[0], stride, 16);
}else
d= 256*256*256*32;
}else{
int uvdxy;
if(dxy){
if(qpel){
c->qpel_put[size][dxy](c->temp, ref[0] + x + y*stride, stride);
if(chroma){
int cx= hx/2;
int cy= hy/2;
cx= (cx>>1)|(cx&1);
cy= (cy>>1)|(cy&1);
uvdxy= (cx&1) + 2*(cy&1);
}
}else{
c->hpel_put[size][dxy](c->temp, ref[0] + x + y*stride, stride, h);
if(chroma)
uvdxy= dxy | (x&1) | (2*(y&1));
}
d = cmp_func(s, c->temp, src[0], stride, h);
}else{
d = cmp_func(s, src[0], ref[0] + x + y*stride, stride, h);
if(chroma)
uvdxy= (x&1) + 2*(y&1);
}
if(chroma){
uint8_t * const uvtemp= c->temp + 16*stride;
c->hpel_put[size+1][uvdxy](uvtemp , ref[1] + (x>>1) + (y>>1)*uvstride, uvstride, h>>1);
c->hpel_put[size+1][uvdxy](uvtemp+8, ref[2] + (x>>1) + (y>>1)*uvstride, uvstride, h>>1);
d += chroma_cmp_func(s, uvtemp , src[1], uvstride, h>>1);
d += chroma_cmp_func(s, uvtemp+8, src[2], uvstride, h>>1);
}
}
#if 0
if(full_pel){
const int index= (((y)<<ME_MAP_SHIFT) + (x))&(ME_MAP_SIZE-1);
score_map[index]= d;
}
d += (c->mv_penalty[hx - c->pred_x] + c->mv_penalty[hy - c->pred_y])*c->penalty_factor;
#endif
return d;
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/motion_est.c/#L176 |
d2a_code_data_45389 | size_t CRYPTO_128_unwrap_pad(void *key, const unsigned char *icv,
unsigned char *out,
const unsigned char *in, size_t inlen, block128_f block)
{
size_t n = inlen / 8 - 1;
size_t padded_len;
size_t padding_len;
size_t ptext_len;
unsigned char aiv[8];
static unsigned char zeros[8] = {0x0};
size_t ret;
if ((inlen & 0x7) != 0 || inlen < 16 || inlen >= CRYPTO128_WRAP_MAX)
return 0;
memmove(out, in, inlen);
if (inlen == 16)
{
block(out, out, key);
memcpy(aiv, out, 8);
memmove(out, out + 8, 8);
padded_len = 8;
}
else
{
padded_len = inlen - 8;
ret = crypto_128_unwrap_raw(key, aiv, out, out, inlen, block);
if (padded_len != ret)
{
OPENSSL_cleanse(out, inlen);
return 0;
}
}
if ((!icv && CRYPTO_memcmp(aiv, default_aiv, 4))
|| (icv && CRYPTO_memcmp(aiv, icv, 4)))
{
OPENSSL_cleanse(out, inlen);
return 0;
}
ptext_len = (aiv[4] << 24) | (aiv[5] << 16) | (aiv[6] << 8) | aiv[7];
if (8*(n-1) >= ptext_len || ptext_len > 8*n)
{
OPENSSL_cleanse(out, inlen);
return 0;
}
padding_len = padded_len - ptext_len;
if (CRYPTO_memcmp(out + ptext_len, zeros, padding_len) != 0)
{
OPENSSL_cleanse(out, inlen);
return 0;
}
return ptext_len;
} | https://github.com/openssl/openssl/blob/50bba6852df4d978d0b15ca8a087c6b0ac1a6e87/crypto/modes/wrap128.c/#L302 |
d2a_code_data_45390 | 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_45391 | 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_45392 | 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/#L119 |
d2a_code_data_45393 | char *X509_NAME_oneline(X509_NAME *a, char *buf, int len)
{
X509_NAME_ENTRY *ne;
int i;
int n, lold, l, l1, l2, num, j, type;
const char *s;
char *p;
unsigned char *q;
BUF_MEM *b = NULL;
static const char hex[17] = "0123456789ABCDEF";
int gs_doit[4];
char tmp_buf[80];
#ifdef CHARSET_EBCDIC
unsigned char ebcdic_buf[1024];
#endif
if (buf == NULL) {
if ((b = BUF_MEM_new()) == NULL)
goto err;
if (!BUF_MEM_grow(b, 200))
goto err;
b->data[0] = '\0';
len = 200;
} else if (len == 0) {
return NULL;
}
if (a == NULL) {
if (b) {
buf = b->data;
OPENSSL_free(b);
}
strncpy(buf, "NO X509_NAME", len);
buf[len - 1] = '\0';
return buf;
}
len--;
l = 0;
for (i = 0; i < sk_X509_NAME_ENTRY_num(a->entries); i++) {
ne = sk_X509_NAME_ENTRY_value(a->entries, i);
n = OBJ_obj2nid(ne->object);
if ((n == NID_undef) || ((s = OBJ_nid2sn(n)) == NULL)) {
i2t_ASN1_OBJECT(tmp_buf, sizeof(tmp_buf), ne->object);
s = tmp_buf;
}
l1 = strlen(s);
type = ne->value->type;
num = ne->value->length;
if (num > NAME_ONELINE_MAX) {
X509err(X509_F_X509_NAME_ONELINE, X509_R_NAME_TOO_LONG);
goto end;
}
q = ne->value->data;
#ifdef CHARSET_EBCDIC
if (type == V_ASN1_GENERALSTRING ||
type == V_ASN1_VISIBLESTRING ||
type == V_ASN1_PRINTABLESTRING ||
type == V_ASN1_TELETEXSTRING ||
type == V_ASN1_VISIBLESTRING || type == V_ASN1_IA5STRING) {
ascii2ebcdic(ebcdic_buf, q, (num > (int)sizeof(ebcdic_buf))
? (int)sizeof(ebcdic_buf) : num);
q = ebcdic_buf;
}
#endif
if ((type == V_ASN1_GENERALSTRING) && ((num % 4) == 0)) {
gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 0;
for (j = 0; j < num; j++)
if (q[j] != 0)
gs_doit[j & 3] = 1;
if (gs_doit[0] | gs_doit[1] | gs_doit[2])
gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 1;
else {
gs_doit[0] = gs_doit[1] = gs_doit[2] = 0;
gs_doit[3] = 1;
}
} else
gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 1;
for (l2 = j = 0; j < num; j++) {
if (!gs_doit[j & 3])
continue;
l2++;
#ifndef CHARSET_EBCDIC
if ((q[j] < ' ') || (q[j] > '~'))
l2 += 3;
#else
if ((os_toascii[q[j]] < os_toascii[' ']) ||
(os_toascii[q[j]] > os_toascii['~']))
l2 += 3;
#endif
}
lold = l;
l += 1 + l1 + 1 + l2;
if (l > NAME_ONELINE_MAX) {
X509err(X509_F_X509_NAME_ONELINE, X509_R_NAME_TOO_LONG);
goto end;
}
if (b != NULL) {
if (!BUF_MEM_grow(b, l + 1))
goto err;
p = &(b->data[lold]);
} else if (l > len) {
break;
} else
p = &(buf[lold]);
*(p++) = '/';
memcpy(p, s, (unsigned int)l1);
p += l1;
*(p++) = '=';
#ifndef CHARSET_EBCDIC
q = ne->value->data;
#endif
for (j = 0; j < num; j++) {
if (!gs_doit[j & 3])
continue;
#ifndef CHARSET_EBCDIC
n = q[j];
if ((n < ' ') || (n > '~')) {
*(p++) = '\\';
*(p++) = 'x';
*(p++) = hex[(n >> 4) & 0x0f];
*(p++) = hex[n & 0x0f];
} else
*(p++) = n;
#else
n = os_toascii[q[j]];
if ((n < os_toascii[' ']) || (n > os_toascii['~'])) {
*(p++) = '\\';
*(p++) = 'x';
*(p++) = hex[(n >> 4) & 0x0f];
*(p++) = hex[n & 0x0f];
} else
*(p++) = q[j];
#endif
}
*p = '\0';
}
if (b != NULL) {
p = b->data;
OPENSSL_free(b);
} else
p = buf;
if (i == 0)
*p = '\0';
return (p);
err:
X509err(X509_F_X509_NAME_ONELINE, ERR_R_MALLOC_FAILURE);
end:
BUF_MEM_free(b);
return (NULL);
} | https://github.com/openssl/openssl/blob/24c2cd3967ed23acc0bd31a3781c4525e2e42a2c/crypto/x509/x509_obj.c/#L104 |
d2a_code_data_45394 | int BN_mod_exp_mont(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,
const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *in_mont)
{
int i, j, bits, ret = 0, wstart, wend, window, wvalue;
int start = 1;
BIGNUM *d, *r;
const BIGNUM *aa;
BIGNUM *val[TABLE_SIZE];
BN_MONT_CTX *mont = NULL;
if (BN_get_flags(p, BN_FLG_CONSTTIME) != 0) {
return BN_mod_exp_mont_consttime(rr, a, p, m, ctx, in_mont);
}
bn_check_top(a);
bn_check_top(p);
bn_check_top(m);
if (!BN_is_odd(m)) {
BNerr(BN_F_BN_MOD_EXP_MONT, BN_R_CALLED_WITH_EVEN_MODULUS);
return (0);
}
bits = BN_num_bits(p);
if (bits == 0) {
if (BN_is_one(m)) {
ret = 1;
BN_zero(rr);
} else {
ret = BN_one(rr);
}
return ret;
}
BN_CTX_start(ctx);
d = BN_CTX_get(ctx);
r = BN_CTX_get(ctx);
val[0] = BN_CTX_get(ctx);
if (!d || !r || !val[0])
goto err;
if (in_mont != NULL)
mont = in_mont;
else {
if ((mont = BN_MONT_CTX_new()) == NULL)
goto err;
if (!BN_MONT_CTX_set(mont, m, ctx))
goto err;
}
if (a->neg || BN_ucmp(a, m) >= 0) {
if (!BN_nnmod(val[0], a, m, ctx))
goto err;
aa = val[0];
} else
aa = a;
if (BN_is_zero(aa)) {
BN_zero(rr);
ret = 1;
goto err;
}
if (!BN_to_montgomery(val[0], aa, mont, ctx))
goto err;
window = BN_window_bits_for_exponent_size(bits);
if (window > 1) {
if (!BN_mod_mul_montgomery(d, val[0], val[0], mont, ctx))
goto err;
j = 1 << (window - 1);
for (i = 1; i < j; i++) {
if (((val[i] = BN_CTX_get(ctx)) == NULL) ||
!BN_mod_mul_montgomery(val[i], val[i - 1], d, mont, ctx))
goto err;
}
}
start = 1;
wvalue = 0;
wstart = bits - 1;
wend = 0;
#if 1
j = m->top;
if (m->d[j - 1] & (((BN_ULONG)1) << (BN_BITS2 - 1))) {
if (bn_wexpand(r, j) == NULL)
goto err;
r->d[0] = (0 - m->d[0]) & BN_MASK2;
for (i = 1; i < j; i++)
r->d[i] = (~m->d[i]) & BN_MASK2;
r->top = j;
bn_correct_top(r);
} else
#endif
if (!BN_to_montgomery(r, BN_value_one(), mont, ctx))
goto err;
for (;;) {
if (BN_is_bit_set(p, wstart) == 0) {
if (!start) {
if (!BN_mod_mul_montgomery(r, r, r, mont, ctx))
goto err;
}
if (wstart == 0)
break;
wstart--;
continue;
}
j = wstart;
wvalue = 1;
wend = 0;
for (i = 1; i < window; i++) {
if (wstart - i < 0)
break;
if (BN_is_bit_set(p, wstart - i)) {
wvalue <<= (i - wend);
wvalue |= 1;
wend = i;
}
}
j = wend + 1;
if (!start)
for (i = 0; i < j; i++) {
if (!BN_mod_mul_montgomery(r, r, r, mont, ctx))
goto err;
}
if (!BN_mod_mul_montgomery(r, r, val[wvalue >> 1], mont, ctx))
goto err;
wstart -= wend + 1;
wvalue = 0;
start = 0;
if (wstart < 0)
break;
}
#if defined(SPARC_T4_MONT)
if (OPENSSL_sparcv9cap_P[0] & (SPARCV9_VIS3 | SPARCV9_PREFER_FPU)) {
j = mont->N.top;
val[0]->d[0] = 1;
for (i = 1; i < j; i++)
val[0]->d[i] = 0;
val[0]->top = j;
if (!BN_mod_mul_montgomery(rr, r, val[0], mont, ctx))
goto err;
} else
#endif
if (!BN_from_montgomery(rr, r, mont, ctx))
goto err;
ret = 1;
err:
if (in_mont == NULL)
BN_MONT_CTX_free(mont);
BN_CTX_end(ctx);
bn_check_top(rr);
return (ret);
} | https://github.com/openssl/openssl/blob/757264207ad8650a89ea903d48ad89f61d56ea9c/crypto/bn/bn_exp.c/#L390 |
d2a_code_data_45395 | 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_45396 | static inline void skip_remaining(BitstreamContext *bc, unsigned n)
{
#ifdef BITSTREAM_READER_LE
bc->bits >>= n;
#else
bc->bits <<= n;
#endif
bc->bits_left -= n;
} | https://github.com/libav/libav/blob/562ef82d6a7f96f6b9da1219a5aaf7d9d7056f1b/libavcodec/bitstream.h/#L237 |
d2a_code_data_45397 | 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_45398 | 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;
}
r->neg = a->neg;
nw = n / BN_BITS2;
if (bn_wexpand(r, a->top + nw + 1) == NULL)
return (0);
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/0282aeb690d63fab73a07191b63300a2fe30d212/crypto/bn/bn_shift.c/#L110 |
d2a_code_data_45399 | static int decode_header_trees(SmackVContext *smk) {
GetBitContext gb;
int mmap_size, mclr_size, full_size, type_size;
mmap_size = AV_RL32(smk->avctx->extradata);
mclr_size = AV_RL32(smk->avctx->extradata + 4);
full_size = AV_RL32(smk->avctx->extradata + 8);
type_size = AV_RL32(smk->avctx->extradata + 12);
init_get_bits(&gb, smk->avctx->extradata + 16, (smk->avctx->extradata_size - 16) * 8);
if(!get_bits1(&gb)) {
av_log(smk->avctx, AV_LOG_INFO, "Skipping MMAP tree\n");
smk->mmap_tbl = av_malloc(sizeof(int) * 2);
smk->mmap_tbl[0] = 0;
smk->mmap_last[0] = smk->mmap_last[1] = smk->mmap_last[2] = 1;
} else {
if (smacker_decode_header_tree(smk, &gb, &smk->mmap_tbl, smk->mmap_last, mmap_size))
return -1;
}
if(!get_bits1(&gb)) {
av_log(smk->avctx, AV_LOG_INFO, "Skipping MCLR tree\n");
smk->mclr_tbl = av_malloc(sizeof(int) * 2);
smk->mclr_tbl[0] = 0;
smk->mclr_last[0] = smk->mclr_last[1] = smk->mclr_last[2] = 1;
} else {
if (smacker_decode_header_tree(smk, &gb, &smk->mclr_tbl, smk->mclr_last, mclr_size))
return -1;
}
if(!get_bits1(&gb)) {
av_log(smk->avctx, AV_LOG_INFO, "Skipping FULL tree\n");
smk->full_tbl = av_malloc(sizeof(int) * 2);
smk->full_tbl[0] = 0;
smk->full_last[0] = smk->full_last[1] = smk->full_last[2] = 1;
} else {
if (smacker_decode_header_tree(smk, &gb, &smk->full_tbl, smk->full_last, full_size))
return -1;
}
if(!get_bits1(&gb)) {
av_log(smk->avctx, AV_LOG_INFO, "Skipping TYPE tree\n");
smk->type_tbl = av_malloc(sizeof(int) * 2);
smk->type_tbl[0] = 0;
smk->type_last[0] = smk->type_last[1] = smk->type_last[2] = 1;
} else {
if (smacker_decode_header_tree(smk, &gb, &smk->type_tbl, smk->type_last, type_size))
return -1;
}
return 0;
} | https://github.com/libav/libav/blob/d7d2f0e63c8187d531168256a0ce2aac21d5fce6/libavcodec/smacker.c/#L319 |
d2a_code_data_45400 | 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/757264207ad8650a89ea903d48ad89f61d56ea9c/crypto/bn/bn_lib.c/#L333 |
d2a_code_data_45401 | static void deinterlace_bottom_field_inplace(uint8_t *src1, int src_wrap,
int width, int height)
{
uint8_t *src_m1, *src_0, *src_p1, *src_p2;
int y;
uint8_t *buf;
buf = (uint8_t*)av_malloc(width);
src_m1 = src1;
memcpy(buf,src_m1,width);
src_0=&src_m1[src_wrap];
src_p1=&src_0[src_wrap];
src_p2=&src_p1[src_wrap];
for(y=0;y<(height-2);y+=2) {
deinterlace_line_inplace(buf,src_m1,src_0,src_p1,src_p2,width);
src_m1 = src_p1;
src_0 = src_p2;
src_p1 += 2*src_wrap;
src_p2 += 2*src_wrap;
}
deinterlace_line_inplace(buf,src_m1,src_0,src_0,src_0,width);
av_free(buf);
} | https://github.com/libav/libav/blob/5301a05d3ea208c140b41515468f98f5d94ddab9/libavcodec/imgconvert.c/#L1486 |
d2a_code_data_45402 | int RAND_status(void)
{
const RAND_METHOD *meth = RAND_get_rand_method();
if (meth->status != NULL)
return meth->status();
return 0;
} | https://github.com/openssl/openssl/blob/363e941ed43c648adf4d6d0874077ddd80041e1f/crypto/rand/rand_lib.c/#L866 |
d2a_code_data_45403 | static int www_body(char *hostname, int s, int stype, unsigned char *context)
{
char *buf = NULL;
int ret = 1;
int i, j, k, dot;
SSL *con;
const SSL_CIPHER *c;
BIO *io, *ssl_bio, *sbio;
#ifdef RENEG
int total_bytes = 0;
#endif
int width;
fd_set readfds;
width = s + 1;
buf = app_malloc(bufsize, "server www buffer");
io = BIO_new(BIO_f_buffer());
ssl_bio = BIO_new(BIO_f_ssl());
if ((io == NULL) || (ssl_bio == NULL))
goto err;
#ifdef FIONBIO
if (s_nbio) {
unsigned long sl = 1;
if (!s_quiet)
BIO_printf(bio_err, "turning on non blocking io\n");
if (BIO_socket_ioctl(s, FIONBIO, &sl) < 0)
ERR_print_errors(bio_err);
}
#endif
if (!BIO_set_write_buffer_size(io, bufsize))
goto err;
if ((con = SSL_new(ctx)) == NULL)
goto err;
if (s_tlsextdebug) {
SSL_set_tlsext_debug_callback(con, tlsext_cb);
SSL_set_tlsext_debug_arg(con, bio_s_out);
}
if (context && !SSL_set_session_id_context(con, context,
strlen((char *)context)))
goto err;
sbio = BIO_new_socket(s, BIO_NOCLOSE);
if (s_nbio_test) {
BIO *test;
test = BIO_new(BIO_f_nbio_test());
sbio = BIO_push(test, sbio);
}
SSL_set_bio(con, sbio, sbio);
SSL_set_accept_state(con);
BIO_set_ssl(ssl_bio, con, BIO_CLOSE);
BIO_push(io, ssl_bio);
#ifdef CHARSET_EBCDIC
io = BIO_push(BIO_new(BIO_f_ebcdic_filter()), io);
#endif
if (s_debug) {
SSL_set_debug(con, 1);
BIO_set_callback(SSL_get_rbio(con), bio_dump_callback);
BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
}
if (s_msg) {
#ifndef OPENSSL_NO_SSL_TRACE
if (s_msg == 2)
SSL_set_msg_callback(con, SSL_trace);
else
#endif
SSL_set_msg_callback(con, msg_cb);
SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
}
for (;;) {
i = BIO_gets(io, buf, bufsize - 1);
if (i < 0) {
if (!BIO_should_retry(io) && !SSL_waiting_for_async(con)) {
if (!s_quiet)
ERR_print_errors(bio_err);
goto err;
} else {
BIO_printf(bio_s_out, "read R BLOCK\n");
#ifndef OPENSSL_NO_SRP
if (BIO_should_io_special(io)
&& BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) {
BIO_printf(bio_s_out, "LOOKUP renego during read\n");
srp_callback_parm.user =
SRP_VBASE_get_by_user(srp_callback_parm.vb,
srp_callback_parm.login);
if (srp_callback_parm.user)
BIO_printf(bio_s_out, "LOOKUP done %s\n",
srp_callback_parm.user->info);
else
BIO_printf(bio_s_out, "LOOKUP not successful\n");
continue;
}
#endif
#if defined(OPENSSL_SYS_NETWARE)
delay(1000);
#elif !defined(OPENSSL_SYS_MSDOS)
sleep(1);
#endif
continue;
}
} else if (i == 0) {
ret = 1;
goto end;
}
if (((www == 1) && (strncmp("GET ", buf, 4) == 0)) ||
((www == 2) && (strncmp("GET /stats ", buf, 11) == 0))) {
char *p;
X509 *peer;
STACK_OF(SSL_CIPHER) *sk;
static const char *space = " ";
if (www == 1 && strncmp("GET /reneg", buf, 10) == 0) {
if (strncmp("GET /renegcert", buf, 14) == 0)
SSL_set_verify(con,
SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE,
NULL);
i = SSL_renegotiate(con);
BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n", i);
i = SSL_do_handshake(con);
if (i <= 0) {
BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n",
SSL_get_error(con, i));
ERR_print_errors(bio_err);
goto err;
}
FD_ZERO(&readfds);
openssl_fdset(s, &readfds);
i = select(width, (void *)&readfds, NULL, NULL, NULL);
if (i <= 0 || !FD_ISSET(s, &readfds)) {
BIO_printf(bio_s_out, "Error waiting for client response\n");
ERR_print_errors(bio_err);
goto err;
}
BIO_gets(io, buf, bufsize - 1);
}
BIO_puts(io,
"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
BIO_puts(io, "<HTML><BODY BGCOLOR=\"#ffffff\">\n");
BIO_puts(io, "<pre>\n");
BIO_puts(io, "\n");
for (i = 0; i < local_argc; i++) {
const char *myp;
for (myp = local_argv[i]; *myp; myp++)
switch (*myp) {
case '<':
BIO_puts(io, "<");
break;
case '>':
BIO_puts(io, ">");
break;
case '&':
BIO_puts(io, "&");
break;
default:
BIO_write(io, myp, 1);
break;
}
BIO_write(io, " ", 1);
}
BIO_puts(io, "\n");
BIO_printf(io,
"Secure Renegotiation IS%s supported\n",
SSL_get_secure_renegotiation_support(con) ?
"" : " NOT");
BIO_printf(io, "Ciphers supported in s_server binary\n");
sk = SSL_get_ciphers(con);
j = sk_SSL_CIPHER_num(sk);
for (i = 0; i < j; i++) {
c = sk_SSL_CIPHER_value(sk, i);
BIO_printf(io, "%-11s:%-25s ",
SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
if ((((i + 1) % 2) == 0) && (i + 1 != j))
BIO_puts(io, "\n");
}
BIO_puts(io, "\n");
p = SSL_get_shared_ciphers(con, buf, bufsize);
if (p != NULL) {
BIO_printf(io,
"---\nCiphers common between both SSL end points:\n");
j = i = 0;
while (*p) {
if (*p == ':') {
BIO_write(io, space, 26 - j);
i++;
j = 0;
BIO_write(io, ((i % 3) ? " " : "\n"), 1);
} else {
BIO_write(io, p, 1);
j++;
}
p++;
}
BIO_puts(io, "\n");
}
ssl_print_sigalgs(io, con);
#ifndef OPENSSL_NO_EC
ssl_print_curves(io, con, 0);
#endif
BIO_printf(io, (SSL_cache_hit(con)
? "---\nReused, " : "---\nNew, "));
c = SSL_get_current_cipher(con);
BIO_printf(io, "%s, Cipher is %s\n",
SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
SSL_SESSION_print(io, SSL_get_session(con));
BIO_printf(io, "---\n");
print_stats(io, SSL_get_SSL_CTX(con));
BIO_printf(io, "---\n");
peer = SSL_get_peer_certificate(con);
if (peer != NULL) {
BIO_printf(io, "Client certificate\n");
X509_print(io, peer);
PEM_write_bio_X509(io, peer);
} else
BIO_puts(io, "no client certificate available\n");
BIO_puts(io, "</BODY></HTML>\r\n\r\n");
break;
} else if ((www == 2 || www == 3)
&& (strncmp("GET /", buf, 5) == 0)) {
BIO *file;
char *p, *e;
static const char *text =
"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
p = &(buf[5]);
dot = 1;
for (e = p; *e != '\0'; e++) {
if (e[0] == ' ')
break;
switch (dot) {
case 1:
dot = (e[0] == '.') ? 2 : 0;
break;
case 2:
dot = (e[0] == '.') ? 3 : 0;
break;
case 3:
dot = (e[0] == '/') ? -1 : 0;
break;
}
if (dot == 0)
dot = (e[0] == '/') ? 1 : 0;
}
dot = (dot == 3) || (dot == -1);
if (*e == '\0') {
BIO_puts(io, text);
BIO_printf(io, "'%s' is an invalid file name\r\n", p);
break;
}
*e = '\0';
if (dot) {
BIO_puts(io, text);
BIO_printf(io, "'%s' contains '..' reference\r\n", p);
break;
}
if (*p == '/') {
BIO_puts(io, text);
BIO_printf(io, "'%s' is an invalid path\r\n", p);
break;
}
if (app_isdir(p) > 0) {
BIO_puts(io, text);
BIO_printf(io, "'%s' is a directory\r\n", p);
break;
}
if ((file = BIO_new_file(p, "r")) == NULL) {
BIO_puts(io, text);
BIO_printf(io, "Error opening '%s'\r\n", p);
ERR_print_errors(io);
break;
}
if (!s_quiet)
BIO_printf(bio_err, "FILE:%s\n", p);
if (www == 2) {
i = strlen(p);
if (((i > 5) && (strcmp(&(p[i - 5]), ".html") == 0)) ||
((i > 4) && (strcmp(&(p[i - 4]), ".php") == 0)) ||
((i > 4) && (strcmp(&(p[i - 4]), ".htm") == 0)))
BIO_puts(io,
"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
else
BIO_puts(io,
"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
}
for (;;) {
i = BIO_read(file, buf, bufsize);
if (i <= 0)
break;
#ifdef RENEG
total_bytes += i;
BIO_printf(bio_err, "%d\n", i);
if (total_bytes > 3 * 1024) {
total_bytes = 0;
BIO_printf(bio_err, "RENEGOTIATE\n");
SSL_renegotiate(con);
}
#endif
for (j = 0; j < i;) {
#ifdef RENEG
{
static count = 0;
if (++count == 13) {
SSL_renegotiate(con);
}
}
#endif
k = BIO_write(io, &(buf[j]), i - j);
if (k <= 0) {
if (!BIO_should_retry(io) && !SSL_waiting_for_async(con))
goto write_error;
else {
BIO_printf(bio_s_out, "rwrite W BLOCK\n");
}
} else {
j += k;
}
}
}
write_error:
BIO_free(file);
break;
}
}
for (;;) {
i = (int)BIO_flush(io);
if (i <= 0) {
if (!BIO_should_retry(io))
break;
} else
break;
}
end:
SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);
err:
if (ret >= 0)
BIO_printf(bio_s_out, "ACCEPT\n");
OPENSSL_free(buf);
BIO_free_all(io);
return (ret);
} | https://github.com/openssl/openssl/blob/ec04e866343d40a1e3e8e5db79557e279a2dd0d8/apps/s_server.c/#L2606 |
d2a_code_data_45404 | int test_div(BIO *bp, BN_CTX *ctx)
{
BIGNUM *a, *b, *c, *d, *e;
int i;
a = BN_new();
b = BN_new();
c = BN_new();
d = BN_new();
e = BN_new();
BN_one(a);
BN_zero(b);
if (BN_div(d, c, a, b, ctx)) {
fprintf(stderr, "Division by zero succeeded!\n");
return 0;
}
for (i = 0; i < num0 + num1; i++) {
if (i < num1) {
BN_bntest_rand(a, 400, 0, 0);
BN_copy(b, a);
BN_lshift(a, a, i);
BN_add_word(a, i);
} else
BN_bntest_rand(b, 50 + 3 * (i - num1), 0, 0);
a->neg = rand_neg();
b->neg = rand_neg();
BN_div(d, c, a, b, ctx);
if (bp != NULL) {
if (!results) {
BN_print(bp, a);
BIO_puts(bp, " / ");
BN_print(bp, b);
BIO_puts(bp, " - ");
}
BN_print(bp, d);
BIO_puts(bp, "\n");
if (!results) {
BN_print(bp, a);
BIO_puts(bp, " % ");
BN_print(bp, b);
BIO_puts(bp, " - ");
}
BN_print(bp, c);
BIO_puts(bp, "\n");
}
BN_mul(e, d, b, ctx);
BN_add(d, e, c);
BN_sub(d, d, a);
if (!BN_is_zero(d)) {
fprintf(stderr, "Division test failed!\n");
return 0;
}
}
BN_free(a);
BN_free(b);
BN_free(c);
BN_free(d);
BN_free(e);
return (1);
} | https://github.com/openssl/openssl/blob/d9e309a675900030d7308e36f614962a344816f9/test/bntest.c/#L498 |
d2a_code_data_45405 | void ERR_add_error_vdata(int num, va_list args)
{
int i, n, s;
char *str, *p, *a;
s = 80;
str = OPENSSL_malloc(s + 1);
if (str == NULL)
return;
str[0] = '\0';
n = 0;
for (i = 0; i < num; i++) {
a = va_arg(args, char *);
if (a == NULL)
a = "<NULL>";
n += strlen(a);
if (n > s) {
s = n + 20;
p = OPENSSL_realloc(str, s + 1);
if (p == NULL) {
OPENSSL_free(str);
return;
}
str = p;
}
OPENSSL_strlcat(str, a, (size_t)s + 1);
}
ERR_set_error_data(str, ERR_TXT_MALLOCED | ERR_TXT_STRING);
} | https://github.com/openssl/openssl/blob/f770d75b1cac264d6280ec7326277daff6965cbb/crypto/err/err.c/#L756 |
d2a_code_data_45406 | int Camellia_Ekeygen(int keyBitLength, const u8 *rawKey, KEY_TABLE_TYPE k)
{
register u32 s0, s1, s2, s3;
k[0] = s0 = GETU32(rawKey);
k[1] = s1 = GETU32(rawKey + 4);
k[2] = s2 = GETU32(rawKey + 8);
k[3] = s3 = GETU32(rawKey + 12);
if (keyBitLength != 128) {
k[8] = s0 = GETU32(rawKey + 16);
k[9] = s1 = GETU32(rawKey + 20);
if (keyBitLength == 192) {
k[10] = s2 = ~s0;
k[11] = s3 = ~s1;
} else {
k[10] = s2 = GETU32(rawKey + 24);
k[11] = s3 = GETU32(rawKey + 28);
}
s0 ^= k[0], s1 ^= k[1], s2 ^= k[2], s3 ^= k[3];
}
Camellia_Feistel(s0, s1, s2, s3, SIGMA + 0);
Camellia_Feistel(s2, s3, s0, s1, SIGMA + 2);
s0 ^= k[0], s1 ^= k[1], s2 ^= k[2], s3 ^= k[3];
Camellia_Feistel(s0, s1, s2, s3, SIGMA + 4);
Camellia_Feistel(s2, s3, s0, s1, SIGMA + 6);
if (keyBitLength == 128) {
k[4] = s0, k[5] = s1, k[6] = s2, k[7] = s3;
RotLeft128(s0, s1, s2, s3, 15);
k[12] = s0, k[13] = s1, k[14] = s2, k[15] = s3;
RotLeft128(s0, s1, s2, s3, 15);
k[16] = s0, k[17] = s1, k[18] = s2, k[19] = s3;
RotLeft128(s0, s1, s2, s3, 15);
k[24] = s0, k[25] = s1;
RotLeft128(s0, s1, s2, s3, 15);
k[28] = s0, k[29] = s1, k[30] = s2, k[31] = s3;
RotLeft128(s1, s2, s3, s0, 2);
k[40] = s1, k[41] = s2, k[42] = s3, k[43] = s0;
RotLeft128(s1, s2, s3, s0, 17);
k[48] = s1, k[49] = s2, k[50] = s3, k[51] = s0;
s0 = k[0], s1 = k[1], s2 = k[2], s3 = k[3];
RotLeft128(s0, s1, s2, s3, 15);
k[8] = s0, k[9] = s1, k[10] = s2, k[11] = s3;
RotLeft128(s0, s1, s2, s3, 30);
k[20] = s0, k[21] = s1, k[22] = s2, k[23] = s3;
RotLeft128(s0, s1, s2, s3, 15);
k[26] = s2, k[27] = s3;
RotLeft128(s0, s1, s2, s3, 17);
k[32] = s0, k[33] = s1, k[34] = s2, k[35] = s3;
RotLeft128(s0, s1, s2, s3, 17);
k[36] = s0, k[37] = s1, k[38] = s2, k[39] = s3;
RotLeft128(s0, s1, s2, s3, 17);
k[44] = s0, k[45] = s1, k[46] = s2, k[47] = s3;
return 3;
} else {
k[12] = s0, k[13] = s1, k[14] = s2, k[15] = s3;
s0 ^= k[8], s1 ^= k[9], s2 ^= k[10], s3 ^= k[11];
Camellia_Feistel(s0, s1, s2, s3, (SIGMA + 8));
Camellia_Feistel(s2, s3, s0, s1, (SIGMA + 10));
k[4] = s0, k[5] = s1, k[6] = s2, k[7] = s3;
RotLeft128(s0, s1, s2, s3, 30);
k[20] = s0, k[21] = s1, k[22] = s2, k[23] = s3;
RotLeft128(s0, s1, s2, s3, 30);
k[40] = s0, k[41] = s1, k[42] = s2, k[43] = s3;
RotLeft128(s1, s2, s3, s0, 19);
k[64] = s1, k[65] = s2, k[66] = s3, k[67] = s0;
s0 = k[8], s1 = k[9], s2 = k[10], s3 = k[11];
RotLeft128(s0, s1, s2, s3, 15);
k[8] = s0, k[9] = s1, k[10] = s2, k[11] = s3;
RotLeft128(s0, s1, s2, s3, 15);
k[16] = s0, k[17] = s1, k[18] = s2, k[19] = s3;
RotLeft128(s0, s1, s2, s3, 30);
k[36] = s0, k[37] = s1, k[38] = s2, k[39] = s3;
RotLeft128(s1, s2, s3, s0, 2);
k[52] = s1, k[53] = s2, k[54] = s3, k[55] = s0;
s0 = k[12], s1 = k[13], s2 = k[14], s3 = k[15];
RotLeft128(s0, s1, s2, s3, 15);
k[12] = s0, k[13] = s1, k[14] = s2, k[15] = s3;
RotLeft128(s0, s1, s2, s3, 30);
k[28] = s0, k[29] = s1, k[30] = s2, k[31] = s3;
k[48] = s1, k[49] = s2, k[50] = s3, k[51] = s0;
RotLeft128(s1, s2, s3, s0, 17);
k[56] = s1, k[57] = s2, k[58] = s3, k[59] = s0;
s0 = k[0], s1 = k[1], s2 = k[2], s3 = k[3];
RotLeft128(s1, s2, s3, s0, 13);
k[24] = s1, k[25] = s2, k[26] = s3, k[27] = s0;
RotLeft128(s1, s2, s3, s0, 15);
k[32] = s1, k[33] = s2, k[34] = s3, k[35] = s0;
RotLeft128(s1, s2, s3, s0, 17);
k[44] = s1, k[45] = s2, k[46] = s3, k[47] = s0;
RotLeft128(s2, s3, s0, s1, 2);
k[60] = s2, k[61] = s3, k[62] = s0, k[63] = s1;
return 4;
}
} | https://github.com/openssl/openssl/blob/1dce6c3f9eef0da2866b82d816dc945883427060/crypto/camellia/camellia.c/#L380 |
d2a_code_data_45407 | 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_45408 | int av_interleave_packet_per_dts(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush){
AVPacketList *pktl, **next_point, *this_pktl;
int stream_count=0;
int streams[MAX_STREAMS];
if(pkt){
AVStream *st= s->streams[ pkt->stream_index];
this_pktl = av_mallocz(sizeof(AVPacketList));
this_pktl->pkt= *pkt;
if(pkt->destruct == av_destruct_packet)
pkt->destruct= NULL;
else
av_dup_packet(&this_pktl->pkt);
next_point = &s->packet_buffer;
while(*next_point){
AVStream *st2= s->streams[ (*next_point)->pkt.stream_index];
int64_t left= st2->time_base.num * (int64_t)st ->time_base.den;
int64_t right= st ->time_base.num * (int64_t)st2->time_base.den;
if((*next_point)->pkt.dts * left > pkt->dts * right)
break;
next_point= &(*next_point)->next;
}
this_pktl->next= *next_point;
*next_point= this_pktl;
}
memset(streams, 0, sizeof(streams));
pktl= s->packet_buffer;
while(pktl){
if(streams[ pktl->pkt.stream_index ] == 0)
stream_count++;
streams[ pktl->pkt.stream_index ]++;
pktl= pktl->next;
}
if(stream_count && (s->nb_streams == stream_count || flush)){
pktl= s->packet_buffer;
*out= pktl->pkt;
s->packet_buffer= pktl->next;
av_freep(&pktl);
return 1;
}else{
av_init_packet(out);
return 0;
}
} | https://github.com/libav/libav/blob/beca9a286c46a67b39fde5fab62a60d0766fc5ad/libavformat/utils.c/#L2609 |
d2a_code_data_45409 | 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/#L1078 |
d2a_code_data_45410 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | https://github.com/openssl/openssl/blob/a8ea8018fa187e22fb4989450b550589e20f62c2/crypto/bn/bn_ctx.c/#L273 |
d2a_code_data_45411 | int test_mod_exp_mont_consttime(BIO *bp, BN_CTX *ctx)
{
BIGNUM *a, *b, *c, *d, *e;
int i;
a = BN_new();
b = BN_new();
c = BN_new();
d = BN_new();
e = BN_new();
BN_one(a);
BN_one(b);
BN_zero(c);
if (BN_mod_exp_mont_consttime(d, a, b, c, ctx, NULL)) {
fprintf(stderr, "BN_mod_exp_mont_consttime with zero modulus "
"succeeded\n");
return 0;
}
BN_set_word(c, 16);
if (BN_mod_exp_mont_consttime(d, a, b, c, ctx, NULL)) {
fprintf(stderr, "BN_mod_exp_mont_consttime with even modulus "
"succeeded\n");
return 0;
}
BN_bntest_rand(c, 30, 0, 1);
for (i = 0; i < num2; i++) {
BN_bntest_rand(a, 20 + i * 5, 0, 0);
BN_bntest_rand(b, 2 + i, 0, 0);
if (!BN_mod_exp_mont_consttime(d, a, b, c, ctx, NULL))
return (00);
if (bp != NULL) {
if (!results) {
BN_print(bp, a);
BIO_puts(bp, " ^ ");
BN_print(bp, b);
BIO_puts(bp, " % ");
BN_print(bp, c);
BIO_puts(bp, " - ");
}
BN_print(bp, d);
BIO_puts(bp, "\n");
}
BN_exp(e, a, b, ctx);
BN_sub(e, e, d);
BN_div(a, b, e, c, ctx);
if (!BN_is_zero(b)) {
fprintf(stderr, "Modulo exponentiation test failed!\n");
return 0;
}
}
BN_free(a);
BN_free(b);
BN_free(c);
BN_free(d);
BN_free(e);
return (1);
} | https://github.com/openssl/openssl/blob/d9e309a675900030d7308e36f614962a344816f9/test/bntest.c/#L1064 |
d2a_code_data_45412 | int test_gf2m_mod_exp(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);
BN_bntest_rand(c, 512, 0, 0);
BN_bntest_rand(d, 512, 0, 0);
for (j = 0; j < 2; j++) {
BN_GF2m_mod_exp(e, a, c, b[j], ctx);
BN_GF2m_mod_exp(f, a, d, b[j], ctx);
BN_GF2m_mod_mul(e, e, f, b[j], ctx);
BN_add(f, c, d);
BN_GF2m_mod_exp(f, a, f, b[j], ctx);
BN_GF2m_add(f, e, f);
if (!BN_is_zero(f)) {
fprintf(stderr,
"GF(2^m) modular exponentiation 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/#L1524 |
d2a_code_data_45413 | 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_45414 | 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/789da2c73d875af59b14156b6295aa4bdfc4f424/crypto/lhash/lhash.c/#L240 |
d2a_code_data_45415 | char *X509_NAME_oneline(X509_NAME *a, char *buf, int len)
{
X509_NAME_ENTRY *ne;
int i;
int n, lold, l, l1, l2, num, j, type;
const char *s;
char *p;
unsigned char *q;
BUF_MEM *b = NULL;
static const char hex[17] = "0123456789ABCDEF";
int gs_doit[4];
char tmp_buf[80];
#ifdef CHARSET_EBCDIC
unsigned char ebcdic_buf[1024];
#endif
if (buf == NULL) {
if ((b = BUF_MEM_new()) == NULL)
goto err;
if (!BUF_MEM_grow(b, 200))
goto err;
b->data[0] = '\0';
len = 200;
} else if (len == 0) {
return NULL;
}
if (a == NULL) {
if (b) {
buf = b->data;
OPENSSL_free(b);
}
strncpy(buf, "NO X509_NAME", len);
buf[len - 1] = '\0';
return buf;
}
len--;
l = 0;
for (i = 0; i < sk_X509_NAME_ENTRY_num(a->entries); i++) {
ne = sk_X509_NAME_ENTRY_value(a->entries, i);
n = OBJ_obj2nid(ne->object);
if ((n == NID_undef) || ((s = OBJ_nid2sn(n)) == NULL)) {
i2t_ASN1_OBJECT(tmp_buf, sizeof(tmp_buf), ne->object);
s = tmp_buf;
}
l1 = strlen(s);
type = ne->value->type;
num = ne->value->length;
if (num > NAME_ONELINE_MAX) {
X509err(X509_F_X509_NAME_ONELINE, X509_R_NAME_TOO_LONG);
goto end;
}
q = ne->value->data;
#ifdef CHARSET_EBCDIC
if (type == V_ASN1_GENERALSTRING ||
type == V_ASN1_VISIBLESTRING ||
type == V_ASN1_PRINTABLESTRING ||
type == V_ASN1_TELETEXSTRING ||
type == V_ASN1_VISIBLESTRING || type == V_ASN1_IA5STRING) {
ascii2ebcdic(ebcdic_buf, q, (num > (int)sizeof(ebcdic_buf))
? (int)sizeof(ebcdic_buf) : num);
q = ebcdic_buf;
}
#endif
if ((type == V_ASN1_GENERALSTRING) && ((num % 4) == 0)) {
gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 0;
for (j = 0; j < num; j++)
if (q[j] != 0)
gs_doit[j & 3] = 1;
if (gs_doit[0] | gs_doit[1] | gs_doit[2])
gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 1;
else {
gs_doit[0] = gs_doit[1] = gs_doit[2] = 0;
gs_doit[3] = 1;
}
} else
gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 1;
for (l2 = j = 0; j < num; j++) {
if (!gs_doit[j & 3])
continue;
l2++;
#ifndef CHARSET_EBCDIC
if ((q[j] < ' ') || (q[j] > '~'))
l2 += 3;
#else
if ((os_toascii[q[j]] < os_toascii[' ']) ||
(os_toascii[q[j]] > os_toascii['~']))
l2 += 3;
#endif
}
lold = l;
l += 1 + l1 + 1 + l2;
if (l > NAME_ONELINE_MAX) {
X509err(X509_F_X509_NAME_ONELINE, X509_R_NAME_TOO_LONG);
goto end;
}
if (b != NULL) {
if (!BUF_MEM_grow(b, l + 1))
goto err;
p = &(b->data[lold]);
} else if (l > len) {
break;
} else
p = &(buf[lold]);
*(p++) = '/';
memcpy(p, s, (unsigned int)l1);
p += l1;
*(p++) = '=';
#ifndef CHARSET_EBCDIC
q = ne->value->data;
#endif
for (j = 0; j < num; j++) {
if (!gs_doit[j & 3])
continue;
#ifndef CHARSET_EBCDIC
n = q[j];
if ((n < ' ') || (n > '~')) {
*(p++) = '\\';
*(p++) = 'x';
*(p++) = hex[(n >> 4) & 0x0f];
*(p++) = hex[n & 0x0f];
} else
*(p++) = n;
#else
n = os_toascii[q[j]];
if ((n < os_toascii[' ']) || (n > os_toascii['~'])) {
*(p++) = '\\';
*(p++) = 'x';
*(p++) = hex[(n >> 4) & 0x0f];
*(p++) = hex[n & 0x0f];
} else
*(p++) = q[j];
#endif
}
*p = '\0';
}
if (b != NULL) {
p = b->data;
OPENSSL_free(b);
} else
p = buf;
if (i == 0)
*p = '\0';
return (p);
err:
X509err(X509_F_X509_NAME_ONELINE, ERR_R_MALLOC_FAILURE);
end:
BUF_MEM_free(b);
return (NULL);
} | https://github.com/openssl/openssl/blob/24c2cd3967ed23acc0bd31a3781c4525e2e42a2c/crypto/x509/x509_obj.c/#L181 |
d2a_code_data_45416 | void ff_lsp2polyf(const double *lsp, double *f, int lp_half_order)
{
int i, j;
f[0] = 1.0;
f[1] = -2 * lsp[0];
lsp -= 2;
for(i=2; i<=lp_half_order; i++)
{
double val = -2 * lsp[2*i];
f[i] = val * f[i-1] + 2*f[i-2];
for(j=i-1; j>1; j--)
f[j] += f[j-1] * val + f[j-2];
f[1] += val;
}
} | https://github.com/libav/libav/blob/539ff40c2d685508c62f040693df0f0facda39ff/libavcodec/lsp.c/#L175 |
d2a_code_data_45417 | 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)));
assert(!overlapped);
return overlapped;
} | https://github.com/openssl/openssl/blob/7141ba31969d0b378d08104a51f8f99b9187b9d5/crypto/evp/evp_enc.c/#L288 |
d2a_code_data_45418 | static int opt_vstats(const char *opt, const char *arg)
{
char filename[40];
time_t today2 = time(NULL);
struct tm *today = localtime(&today2);
snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
today->tm_sec);
return opt_vstats_file(opt, filename);
} | https://github.com/libav/libav/blob/1ce5dce454ea46280b188f0b7e37fc976fcfb606/avconv_opt.c/#L1656 |
d2a_code_data_45419 | int BN_GF2m_mod_div(BIGNUM *r, const BIGNUM *y, const BIGNUM *x,
const BIGNUM *p, BN_CTX *ctx)
{
BIGNUM *xinv = NULL;
int ret = 0;
bn_check_top(y);
bn_check_top(x);
bn_check_top(p);
BN_CTX_start(ctx);
xinv = BN_CTX_get(ctx);
if (xinv == NULL)
goto err;
if (!BN_GF2m_mod_inv(xinv, x, p, ctx))
goto err;
if (!BN_GF2m_mod_mul(r, y, xinv, p, ctx))
goto err;
bn_check_top(r);
ret = 1;
err:
BN_CTX_end(ctx);
return ret;
} | https://github.com/openssl/openssl/blob/ec04e866343d40a1e3e8e5db79557e279a2dd0d8/crypto/bn/bn_gf2m.c/#L846 |
d2a_code_data_45420 | 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/4973a60cb92dc121fc09246bff3815afc0f8ab9a/crypto/bn/bn_sqr.c/#L119 |
d2a_code_data_45421 | 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_45422 | static int encode_test_run(struct evp_test *t)
{
struct encode_data *edata = t->data;
unsigned char *encode_out = NULL, *decode_out = NULL;
int output_len, chunk_len;
const char *err = "INTERNAL_ERROR";
EVP_ENCODE_CTX *decode_ctx = EVP_ENCODE_CTX_new();
if (decode_ctx == NULL)
goto err;
if (edata->encoding == BASE64_CANONICAL_ENCODING) {
EVP_ENCODE_CTX *encode_ctx = EVP_ENCODE_CTX_new();
if (encode_ctx == NULL)
goto err;
encode_out = OPENSSL_malloc(EVP_ENCODE_LENGTH(edata->input_len));
if (encode_out == NULL)
goto err;
EVP_EncodeInit(encode_ctx);
EVP_EncodeUpdate(encode_ctx, encode_out, &chunk_len,
edata->input, edata->input_len);
output_len = chunk_len;
EVP_EncodeFinal(encode_ctx, encode_out + chunk_len, &chunk_len);
output_len += chunk_len;
EVP_ENCODE_CTX_free(encode_ctx);
if (check_var_length_output(t, edata->output, edata->output_len,
encode_out, output_len)) {
err = "BAD_ENCODING";
goto err;
}
}
decode_out = OPENSSL_malloc(EVP_DECODE_LENGTH(edata->output_len));
if (decode_out == NULL)
goto err;
EVP_DecodeInit(decode_ctx);
if (EVP_DecodeUpdate(decode_ctx, decode_out, &chunk_len, edata->output,
edata->output_len) < 0) {
err = "DECODE_ERROR";
goto err;
}
output_len = chunk_len;
if (EVP_DecodeFinal(decode_ctx, decode_out + chunk_len, &chunk_len) != 1) {
err = "DECODE_ERROR";
goto err;
}
output_len += chunk_len;
if (edata->encoding != BASE64_INVALID_ENCODING &&
check_var_length_output(t, edata->input, edata->input_len,
decode_out, output_len)) {
err = "BAD_DECODING";
goto err;
}
err = NULL;
err:
t->err = err;
OPENSSL_free(encode_out);
OPENSSL_free(decode_out);
EVP_ENCODE_CTX_free(decode_ctx);
return 1;
} | https://github.com/openssl/openssl/blob/ec04e866343d40a1e3e8e5db79557e279a2dd0d8/test/evp_test.c/#L1606 |
d2a_code_data_45423 | 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_45424 | void gf_mul(gf_s * RESTRICT cs, const gf as, const gf bs)
{
const uint32_t *a = as->limb, *b = bs->limb;
uint32_t *c = cs->limb;
uint64_t accum0 = 0, accum1 = 0, accum2 = 0;
uint32_t mask = (1 << 28) - 1;
uint32_t aa[8], bb[8];
int i, j;
for (i = 0; i < 8; i++) {
aa[i] = a[i] + a[i + 8];
bb[i] = b[i] + b[i + 8];
}
FOR_LIMB(j, 0, 8, {
accum2 = 0;
FOR_LIMB(i, 0, j + 1, {
accum2 += widemul(a[j - i], b[i]);
accum1 += widemul(aa[j - i], bb[i]);
accum0 += widemul(a[8 + j - i], b[8 + i]);
}
); accum1 -= accum2; accum0 += accum2;
accum2 = 0;
FOR_LIMB(i, j + 1, 8, {
accum0 -=
widemul(a[8 + j - i], b[i]);
accum2 +=
widemul(aa[8 + j - i],
bb[i]);
accum1 += widemul(a[16 + j - i], b[8 + i]);
}
);
accum1 += accum2;
accum0 += accum2;
c[j] = ((uint32_t)(accum0)) & mask;
c[j + 8] = ((uint32_t)(accum1)) & mask;
accum0 >>= 28; accum1 >>= 28;
});
accum0 += accum1;
accum0 += c[8];
accum1 += c[0];
c[8] = ((uint32_t)(accum0)) & mask;
c[0] = ((uint32_t)(accum1)) & mask;
accum0 >>= 28;
accum1 >>= 28;
c[9] += ((uint32_t)(accum0));
c[1] += ((uint32_t)(accum1));
} | https://github.com/openssl/openssl/blob/0cdcdacc337005e08a906b2e07d4e44e3ee48138/crypto/ec/curve448/arch_32/f_impl.c/#L37 |
d2a_code_data_45425 | static void contract(OPENSSL_LHASH *lh)
{
OPENSSL_LH_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 = OPENSSL_realloc(lh->b,
(unsigned int)(sizeof(OPENSSL_LH_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/4460ad90af0338abe31286f29b36baf2e41abf19/crypto/lhash/lhash.c/#L293 |
d2a_code_data_45426 | static av_always_inline void dnxhd_get_blocks(DNXHDEncContext *ctx, int mb_x, int mb_y)
{
const uint8_t *ptr_y = ctx->thread[0]->src[0] + ((mb_y << 4) * ctx->m.linesize) + (mb_x << 4);
const uint8_t *ptr_u = ctx->thread[0]->src[1] + ((mb_y << 4) * ctx->m.uvlinesize) + (mb_x << 3);
const uint8_t *ptr_v = ctx->thread[0]->src[2] + ((mb_y << 4) * ctx->m.uvlinesize) + (mb_x << 3);
DSPContext *dsp = &ctx->m.dsp;
dsp->get_pixels(ctx->blocks[0], ptr_y , ctx->m.linesize);
dsp->get_pixels(ctx->blocks[1], ptr_y + 8, ctx->m.linesize);
dsp->get_pixels(ctx->blocks[2], ptr_u , ctx->m.uvlinesize);
dsp->get_pixels(ctx->blocks[3], ptr_v , ctx->m.uvlinesize);
if (mb_y+1 == ctx->m.mb_height && ctx->m.avctx->height == 1080) {
if (ctx->interlaced) {
dnxhd_get_pixels_4x8(ctx->blocks[4], ptr_y + ctx->dct_y_offset , ctx->m.linesize);
dnxhd_get_pixels_4x8(ctx->blocks[5], ptr_y + ctx->dct_y_offset + 8, ctx->m.linesize);
dnxhd_get_pixels_4x8(ctx->blocks[6], ptr_u + ctx->dct_uv_offset , ctx->m.uvlinesize);
dnxhd_get_pixels_4x8(ctx->blocks[7], ptr_v + ctx->dct_uv_offset , ctx->m.uvlinesize);
} else
memset(ctx->blocks[4], 0, 4*64*sizeof(DCTELEM));
} else {
dsp->get_pixels(ctx->blocks[4], ptr_y + ctx->dct_y_offset , ctx->m.linesize);
dsp->get_pixels(ctx->blocks[5], ptr_y + ctx->dct_y_offset + 8, ctx->m.linesize);
dsp->get_pixels(ctx->blocks[6], ptr_u + ctx->dct_uv_offset , ctx->m.uvlinesize);
dsp->get_pixels(ctx->blocks[7], ptr_v + ctx->dct_uv_offset , ctx->m.uvlinesize);
}
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/dnxhdenc.c/#L420 |
d2a_code_data_45427 | void ff_mpa_synth_filter(MPA_INT *synth_buf_ptr, int *synth_buf_offset,
MPA_INT *window, int *dither_state,
OUT_INT *samples, int incr,
int32_t sb_samples[SBLIMIT])
{
int32_t tmp[32];
register MPA_INT *synth_buf;
register const MPA_INT *w, *w2, *p;
int j, offset, v;
OUT_INT *samples2;
#if FRAC_BITS <= 15
int sum, sum2;
#else
int64_t sum, sum2;
#endif
dct32(tmp, sb_samples);
offset = *synth_buf_offset;
synth_buf = synth_buf_ptr + offset;
for(j=0;j<32;j++) {
v = tmp[j];
#if FRAC_BITS <= 15
v = av_clip_int16(v);
#endif
synth_buf[j] = v;
}
memcpy(synth_buf + 512, synth_buf, 32 * sizeof(MPA_INT));
samples2 = samples + 31 * incr;
w = window;
w2 = window + 31;
sum = *dither_state;
p = synth_buf + 16;
SUM8(sum, +=, w, p);
p = synth_buf + 48;
SUM8(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, +=, sum2, -=, w, w2, p);
p = synth_buf + 48 - j;
SUM8P2(sum, -=, sum2, -=, 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(sum, -=, w + 32, p);
*samples = round_sample(&sum);
*dither_state= sum;
offset = (offset - 32) & 511;
*synth_buf_offset = offset;
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/mpegaudiodec.c/#L923 |
d2a_code_data_45428 | int i2o_SCT(const SCT *sct, unsigned char **out)
{
size_t len;
unsigned char *p = NULL;
if (!SCT_is_complete(sct)) {
CTerr(CT_F_I2O_SCT, CT_R_SCT_NOT_SET);
goto err;
}
if (sct->version == SCT_VERSION_V1)
len = 43 + sct->ext_len + 4 + sct->sig_len;
else
len = sct->sct_len;
if (out == NULL)
return len;
if (*out != NULL) {
p = *out;
*out += len;
} else {
p = OPENSSL_malloc(len);
if (p == NULL) {
CTerr(CT_F_I2O_SCT, ERR_R_MALLOC_FAILURE);
goto err;
}
*out = p;
}
if (sct->version == SCT_VERSION_V1) {
*p++ = sct->version;
memcpy(p, sct->log_id, CT_V1_HASHLEN);
p += CT_V1_HASHLEN;
l2n8(sct->timestamp, p);
s2n(sct->ext_len, p);
if (sct->ext_len > 0) {
memcpy(p, sct->ext, sct->ext_len);
p += sct->ext_len;
}
if (i2o_SCT_signature(sct, &p) <= 0)
goto err;
} else {
memcpy(p, sct->sct, len);
}
return len;
err:
OPENSSL_free(p);
return -1;
} | https://github.com/openssl/openssl/blob/0cea8832df37d8fd3e664caec8abbdaa002122b1/crypto/ct/ct_oct.c/#L310 |
d2a_code_data_45429 | BIO *bio_open_owner(const char *filename, int format, int private)
{
FILE *fp = NULL;
BIO *b = NULL;
int fd = -1, bflags, mode, binmode;
if (!private || filename == NULL || strcmp(filename, "-") == 0)
return bio_open_default(filename, 'w', format);
mode = O_WRONLY;
#ifdef O_CREAT
mode |= O_CREAT;
#endif
#ifdef O_TRUNC
mode |= O_TRUNC;
#endif
binmode = istext(format);
if (binmode) {
#ifdef O_BINARY
mode |= O_BINARY;
#elif defined(_O_BINARY)
mode |= _O_BINARY;
#endif
}
fd = open(filename, mode, 0600);
if (fd < 0)
goto err;
fp = fdopen(fd, modestr('w', format));
if (fp == NULL)
goto err;
bflags = BIO_CLOSE;
if (!binmode)
bflags |= BIO_FP_TEXT;
b = BIO_new_fp(fp, bflags);
if (b)
return b;
err:
BIO_printf(bio_err, "%s: Can't open \"%s\" for writing, %s\n",
opt_getprog(), filename, strerror(errno));
ERR_print_errors(bio_err);
if (fp)
fclose(fp);
else if (fd >= 0)
close(fd);
return NULL;
} | https://github.com/openssl/openssl/blob/aec27d4d5210234560deab85c97bd453535f66ae/apps/apps.c/#L2819 |
d2a_code_data_45430 | void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
int i;
InternalBuffer *buf, *last;
assert(pic->type==FF_BUFFER_TYPE_INTERNAL);
assert(s->internal_buffer_count);
if(s->internal_buffer){
buf = NULL;
for(i=0; i<s->internal_buffer_count; i++){
buf= &((InternalBuffer*)s->internal_buffer)[i];
if(buf->data[0] == pic->data[0])
break;
}
assert(i < s->internal_buffer_count);
s->internal_buffer_count--;
last = &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
FFSWAP(InternalBuffer, *buf, *last);
}
for(i=0; i<4; i++){
pic->data[i]=NULL;
}
if(s->debug&FF_DEBUG_BUFFERS)
av_log(s, AV_LOG_DEBUG, "default_release_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
} | https://github.com/libav/libav/blob/6a9c85944427e3c4355bce67d7f677ec69527bff/libavcodec/utils.c/#L374 |
d2a_code_data_45431 | static ngx_int_t
ngx_http_uwsgi_create_request(ngx_http_request_t *r)
{
u_char ch, *lowcase_key;
size_t key_len, val_len, len, allocated;
ngx_uint_t i, n, hash, skip_empty, header_params;
ngx_buf_t *b;
ngx_chain_t *cl, *body;
ngx_list_part_t *part;
ngx_table_elt_t *header, **ignored;
ngx_http_uwsgi_params_t *params;
ngx_http_script_code_pt code;
ngx_http_script_engine_t e, le;
ngx_http_uwsgi_loc_conf_t *uwcf;
ngx_http_script_len_code_pt lcode;
len = 0;
header_params = 0;
ignored = NULL;
uwcf = ngx_http_get_module_loc_conf(r, ngx_http_uwsgi_module);
#if (NGX_HTTP_CACHE)
params = r->upstream->cacheable ? &uwcf->params_cache : &uwcf->params;
#else
params = &uwcf->params;
#endif
if (params->lengths) {
ngx_memzero(&le, sizeof(ngx_http_script_engine_t));
ngx_http_script_flush_no_cacheable_variables(r, params->flushes);
le.flushed = 1;
le.ip = params->lengths->elts;
le.request = r;
while (*(uintptr_t *) le.ip) {
lcode = *(ngx_http_script_len_code_pt *) le.ip;
key_len = lcode(&le);
lcode = *(ngx_http_script_len_code_pt *) le.ip;
skip_empty = lcode(&le);
for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) {
lcode = *(ngx_http_script_len_code_pt *) le.ip;
}
le.ip += sizeof(uintptr_t);
if (skip_empty && val_len == 0) {
continue;
}
len += 2 + key_len + 2 + val_len;
}
}
if (uwcf->upstream.pass_request_headers) {
allocated = 0;
lowcase_key = NULL;
if (params->number) {
n = 0;
part = &r->headers_in.headers.part;
while (part) {
n += part->nelts;
part = part->next;
}
ignored = ngx_palloc(r->pool, n * sizeof(void *));
if (ignored == NULL) {
return NGX_ERROR;
}
}
part = &r->headers_in.headers.part;
header = part->elts;
for (i = 0; ; i++) {
if (i >= part->nelts) {
if (part->next == NULL) {
break;
}
part = part->next;
header = part->elts;
i = 0;
}
if (params->number) {
if (allocated < header[i].key.len) {
allocated = header[i].key.len + 16;
lowcase_key = ngx_pnalloc(r->pool, allocated);
if (lowcase_key == NULL) {
return NGX_ERROR;
}
}
hash = 0;
for (n = 0; n < header[i].key.len; n++) {
ch = header[i].key.data[n];
if (ch >= 'A' && ch <= 'Z') {
ch |= 0x20;
} else if (ch == '-') {
ch = '_';
}
hash = ngx_hash(hash, ch);
lowcase_key[n] = ch;
}
if (ngx_hash_find(¶ms->hash, hash, lowcase_key, n)) {
ignored[header_params++] = &header[i];
continue;
}
}
len += 2 + sizeof("HTTP_") - 1 + header[i].key.len
+ 2 + header[i].value.len;
}
}
len += uwcf->uwsgi_string.len;
#if 0
if (len > 0 && len < 2) {
ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
"uwsgi request is too little: %uz", len);
return NGX_ERROR;
}
#endif
if (len > 65535) {
ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
"uwsgi request is too big: %uz", len);
return NGX_ERROR;
}
b = ngx_create_temp_buf(r->pool, len + 4);
if (b == NULL) {
return NGX_ERROR;
}
cl = ngx_alloc_chain_link(r->pool);
if (cl == NULL) {
return NGX_ERROR;
}
cl->buf = b;
*b->last++ = (u_char) uwcf->modifier1;
*b->last++ = (u_char) (len & 0xff);
*b->last++ = (u_char) ((len >> 8) & 0xff);
*b->last++ = (u_char) uwcf->modifier2;
if (params->lengths) {
ngx_memzero(&e, sizeof(ngx_http_script_engine_t));
e.ip = params->values->elts;
e.pos = b->last;
e.request = r;
e.flushed = 1;
le.ip = params->lengths->elts;
while (*(uintptr_t *) le.ip) {
lcode = *(ngx_http_script_len_code_pt *) le.ip;
key_len = (u_char) lcode(&le);
lcode = *(ngx_http_script_len_code_pt *) le.ip;
skip_empty = lcode(&le);
for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) {
lcode = *(ngx_http_script_len_code_pt *) le.ip;
}
le.ip += sizeof(uintptr_t);
if (skip_empty && val_len == 0) {
e.skip = 1;
while (*(uintptr_t *) e.ip) {
code = *(ngx_http_script_code_pt *) e.ip;
code((ngx_http_script_engine_t *) &e);
}
e.ip += sizeof(uintptr_t);
e.skip = 0;
continue;
}
*e.pos++ = (u_char) (key_len & 0xff);
*e.pos++ = (u_char) ((key_len >> 8) & 0xff);
code = *(ngx_http_script_code_pt *) e.ip;
code((ngx_http_script_engine_t *) &e);
*e.pos++ = (u_char) (val_len & 0xff);
*e.pos++ = (u_char) ((val_len >> 8) & 0xff);
while (*(uintptr_t *) e.ip) {
code = *(ngx_http_script_code_pt *) e.ip;
code((ngx_http_script_engine_t *) &e);
}
e.ip += sizeof(uintptr_t);
ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"uwsgi param: \"%*s: %*s\"",
key_len, e.pos - (key_len + 2 + val_len),
val_len, e.pos - val_len);
}
b->last = e.pos;
}
if (uwcf->upstream.pass_request_headers) {
part = &r->headers_in.headers.part;
header = part->elts;
for (i = 0; ; i++) {
if (i >= part->nelts) {
if (part->next == NULL) {
break;
}
part = part->next;
header = part->elts;
i = 0;
}
for (n = 0; n < header_params; n++) {
if (&header[i] == ignored[n]) {
goto next;
}
}
key_len = sizeof("HTTP_") - 1 + header[i].key.len;
*b->last++ = (u_char) (key_len & 0xff);
*b->last++ = (u_char) ((key_len >> 8) & 0xff);
b->last = ngx_cpymem(b->last, "HTTP_", sizeof("HTTP_") - 1);
for (n = 0; n < header[i].key.len; n++) {
ch = header[i].key.data[n];
if (ch >= 'a' && ch <= 'z') {
ch &= ~0x20;
} else if (ch == '-') {
ch = '_';
}
*b->last++ = ch;
}
val_len = header[i].value.len;
*b->last++ = (u_char) (val_len & 0xff);
*b->last++ = (u_char) ((val_len >> 8) & 0xff);
b->last = ngx_copy(b->last, header[i].value.data, val_len);
ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"uwsgi param: \"%*s: %*s\"",
key_len, b->last - (key_len + 2 + val_len),
val_len, b->last - val_len);
next:
continue;
}
}
b->last = ngx_copy(b->last, uwcf->uwsgi_string.data,
uwcf->uwsgi_string.len);
if (r->request_body_no_buffering) {
r->upstream->request_bufs = cl;
} else if (uwcf->upstream.pass_request_body) {
body = r->upstream->request_bufs;
r->upstream->request_bufs = cl;
while (body) {
b = ngx_alloc_buf(r->pool);
if (b == NULL) {
return NGX_ERROR;
}
ngx_memcpy(b, body->buf, sizeof(ngx_buf_t));
cl->next = ngx_alloc_chain_link(r->pool);
if (cl->next == NULL) {
return NGX_ERROR;
}
cl = cl->next;
cl->buf = b;
body = body->next;
}
} else {
r->upstream->request_bufs = cl;
}
cl->next = NULL;
return NGX_OK;
} | https://github.com/nginx/nginx/blob/b71792b11086d9df748f36d02f93d360d135cd7c/src/http/modules/ngx_http_uwsgi_module.c/#L1024 |
d2a_code_data_45432 | void ff_mpa_synth_filter(MPA_INT *synth_buf_ptr, int *synth_buf_offset,
MPA_INT *window, int *dither_state,
OUT_INT *samples, int incr,
int32_t sb_samples[SBLIMIT])
{
int32_t tmp[32];
register MPA_INT *synth_buf;
register const MPA_INT *w, *w2, *p;
int j, offset, v;
OUT_INT *samples2;
#if FRAC_BITS <= 15
int sum, sum2;
#else
int64_t sum, sum2;
#endif
dct32(tmp, sb_samples);
offset = *synth_buf_offset;
synth_buf = synth_buf_ptr + offset;
for(j=0;j<32;j++) {
v = tmp[j];
#if FRAC_BITS <= 15
v = av_clip_int16(v);
#endif
synth_buf[j] = v;
}
memcpy(synth_buf + 512, synth_buf, 32 * sizeof(MPA_INT));
samples2 = samples + 31 * incr;
w = window;
w2 = window + 31;
sum = *dither_state;
p = synth_buf + 16;
SUM8(sum, +=, w, p);
p = synth_buf + 48;
SUM8(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, +=, sum2, -=, w, w2, p);
p = synth_buf + 48 - j;
SUM8P2(sum, -=, sum2, -=, 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(sum, -=, w + 32, p);
*samples = round_sample(&sum);
*dither_state= sum;
offset = (offset - 32) & 511;
*synth_buf_offset = offset;
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/mpegaudiodec.c/#L923 |
d2a_code_data_45433 | 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/#L1063 |
d2a_code_data_45434 | int BUF_MEM_grow_clean(BUF_MEM *str, size_t len)
{
char *ret;
size_t n;
if (str->length >= len)
{
memset(&str->data[len],0,str->length-len);
str->length=len;
return(len);
}
if (str->max >= len)
{
memset(&str->data[str->length],0,len-str->length);
str->length=len;
return(len);
}
if (len > LIMIT_BEFORE_EXPANSION)
{
BUFerr(BUF_F_BUF_MEM_GROW_CLEAN,ERR_R_MALLOC_FAILURE);
return 0;
}
n=(len+3)/3*4;
if (str->data == NULL)
ret=OPENSSL_malloc(n);
else
ret=OPENSSL_realloc_clean(str->data,str->max,n);
if (ret == NULL)
{
BUFerr(BUF_F_BUF_MEM_GROW_CLEAN,ERR_R_MALLOC_FAILURE);
len=0;
}
else
{
str->data=ret;
str->max=n;
memset(&str->data[str->length],0,len-str->length);
str->length=len;
}
return(len);
} | https://github.com/openssl/openssl/blob/66f96fe2d519147097c118d4bf60704c69ed0635/crypto/buffer/buffer.c/#L146 |
d2a_code_data_45435 | static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
{
const char *codec_string = encoder ? "encoder" : "decoder";
AVCodec *codec;
if(!name)
return CODEC_ID_NONE;
codec = encoder ?
avcodec_find_encoder_by_name(name) :
avcodec_find_decoder_by_name(name);
if(!codec) {
fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
ffmpeg_exit(1);
}
if(codec->type != type) {
fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
ffmpeg_exit(1);
}
if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
strict > FF_COMPLIANCE_EXPERIMENTAL) {
fprintf(stderr, "%s '%s' is experimental and might produce bad "
"results.\nAdd '-strict experimental' if you want to use it.\n",
codec_string, codec->name);
codec = encoder ?
avcodec_find_encoder(codec->id) :
avcodec_find_decoder(codec->id);
if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
fprintf(stderr, "Or use the non experimental %s '%s'.\n",
codec_string, codec->name);
ffmpeg_exit(1);
}
return codec->id;
} | https://github.com/libav/libav/blob/a6286bda0956bfe15b4e1a9f96e1689666e1d866/ffmpeg.c/#L3121 |
d2a_code_data_45436 | 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/d7c42d71ba407a4b3c26ed58263ae225976bbac3/crypto/bn/bn_sqr.c/#L120 |
d2a_code_data_45437 | 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_45438 | static inline void idct4row(DCTELEM *row)
{
int c0, c1, c2, c3, a0, a1, a2, a3;
a0 = row[0];
a1 = row[1];
a2 = row[2];
a3 = row[3];
c0 = (a0 + a2)*R3 + (1 << (R_SHIFT - 1));
c2 = (a0 - a2)*R3 + (1 << (R_SHIFT - 1));
c1 = a1 * R1 + a3 * R2;
c3 = a1 * R2 - a3 * R1;
row[0]= (c0 + c1) >> R_SHIFT;
row[1]= (c2 + c3) >> R_SHIFT;
row[2]= (c2 - c3) >> R_SHIFT;
row[3]= (c0 - c1) >> R_SHIFT;
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/simple_idct.c/#L547 |
d2a_code_data_45439 | 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_45440 | 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/#L1815 |
d2a_code_data_45441 | 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/b90506e995d44dee0ef4dd0324b56b59154256c2/crypto/bn/bn_sqr.c/#L119 |
d2a_code_data_45442 | 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_45443 | 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_45444 | static int decode_frame(AVCodecContext *avctx, void *data,
int *got_frame_ptr, AVPacket *avpkt)
{
BinkAudioContext *s = avctx->priv_data;
GetBitContext *gb = &s->gb;
int ret, consumed = 0;
if (!get_bits_left(gb)) {
uint8_t *buf;
if (!avpkt->size) {
*got_frame_ptr = 0;
return 0;
}
if (avpkt->size < 4) {
av_log(avctx, AV_LOG_ERROR, "Packet is too small\n");
return AVERROR_INVALIDDATA;
}
buf = av_realloc(s->packet_buffer, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
if (!buf)
return AVERROR(ENOMEM);
s->packet_buffer = buf;
memcpy(s->packet_buffer, avpkt->data, avpkt->size);
init_get_bits(gb, s->packet_buffer, avpkt->size * 8);
consumed = avpkt->size;
skip_bits_long(gb, 32);
}
s->frame.nb_samples = s->frame_len;
if ((ret = avctx->get_buffer(avctx, &s->frame)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return ret;
}
if (decode_block(s, (float **)s->frame.extended_data,
avctx->codec->id == AV_CODEC_ID_BINKAUDIO_DCT)) {
av_log(avctx, AV_LOG_ERROR, "Incomplete packet\n");
return AVERROR_INVALIDDATA;
}
get_bits_align32(gb);
s->frame.nb_samples = s->block_size / avctx->channels;
*got_frame_ptr = 1;
*(AVFrame *)data = s->frame;
return consumed;
} | https://github.com/libav/libav/blob/7bfd1766d1c18f07b0a2dd042418a874d49ea60d/libavcodec/binkaudio.c/#L333 |
d2a_code_data_45445 | 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->neg = b->neg;
a->top = b->top;
a->flags |= b->flags & BN_FLG_FIXED_TOP;
bn_check_top(a);
return a;
} | https://github.com/openssl/openssl/blob/3051bf2afab7ac8b7b9c64e68755d1addd2fb8ff/crypto/bn/bn_lib.c/#L291 |
d2a_code_data_45446 | 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_45447 | static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x, int motion_y, int mb_block_height, int mb_block_count)
{
int16_t weight[8][64];
DCTELEM orig[8][64];
const int mb_x= s->mb_x;
const int mb_y= s->mb_y;
int i;
int skip_dct[8];
int dct_offset = s->linesize*8;
uint8_t *ptr_y, *ptr_cb, *ptr_cr;
int wrap_y, wrap_c;
for(i=0; i<mb_block_count; i++) skip_dct[i]=s->skipdct;
if(s->adaptive_quant){
const int last_qp= s->qscale;
const int mb_xy= mb_x + mb_y*s->mb_stride;
s->lambda= s->lambda_table[mb_xy];
update_qscale(s);
if(!(s->flags&CODEC_FLAG_QP_RD)){
s->qscale= s->current_picture_ptr->qscale_table[mb_xy];
s->dquant= s->qscale - last_qp;
if(s->out_format==FMT_H263){
s->dquant= av_clip(s->dquant, -2, 2);
if(s->codec_id==CODEC_ID_MPEG4){
if(!s->mb_intra){
if(s->pict_type == FF_B_TYPE){
if(s->dquant&1 || s->mv_dir&MV_DIRECT)
s->dquant= 0;
}
if(s->mv_type==MV_TYPE_8X8)
s->dquant=0;
}
}
}
}
ff_set_qscale(s, last_qp + s->dquant);
}else if(s->flags&CODEC_FLAG_QP_RD)
ff_set_qscale(s, s->qscale + s->dquant);
wrap_y = s->linesize;
wrap_c = s->uvlinesize;
ptr_y = s->new_picture.data[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
ptr_cb = s->new_picture.data[1] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
ptr_cr = s->new_picture.data[2] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
uint8_t *ebuf= s->edge_emu_buffer + 32;
ff_emulated_edge_mc(ebuf , ptr_y , wrap_y,16,16,mb_x*16,mb_y*16, s->width , s->height);
ptr_y= ebuf;
ff_emulated_edge_mc(ebuf+18*wrap_y , ptr_cb, wrap_c, 8, mb_block_height, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
ptr_cb= ebuf+18*wrap_y;
ff_emulated_edge_mc(ebuf+18*wrap_y+8, ptr_cr, wrap_c, 8, mb_block_height, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
ptr_cr= ebuf+18*wrap_y+8;
}
if (s->mb_intra) {
if(s->flags&CODEC_FLAG_INTERLACED_DCT){
int progressive_score, interlaced_score;
s->interlaced_dct=0;
progressive_score= s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y, 8)
+s->dsp.ildct_cmp[4](s, ptr_y + wrap_y*8, NULL, wrap_y, 8) - 400;
if(progressive_score > 0){
interlaced_score = s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y*2, 8)
+s->dsp.ildct_cmp[4](s, ptr_y + wrap_y , NULL, wrap_y*2, 8);
if(progressive_score > interlaced_score){
s->interlaced_dct=1;
dct_offset= wrap_y;
wrap_y<<=1;
if (s->chroma_format == CHROMA_422)
wrap_c<<=1;
}
}
}
s->dsp.get_pixels(s->block[0], ptr_y , wrap_y);
s->dsp.get_pixels(s->block[1], ptr_y + 8, wrap_y);
s->dsp.get_pixels(s->block[2], ptr_y + dct_offset , wrap_y);
s->dsp.get_pixels(s->block[3], ptr_y + dct_offset + 8, wrap_y);
if(s->flags&CODEC_FLAG_GRAY){
skip_dct[4]= 1;
skip_dct[5]= 1;
}else{
s->dsp.get_pixels(s->block[4], ptr_cb, wrap_c);
s->dsp.get_pixels(s->block[5], ptr_cr, wrap_c);
if(!s->chroma_y_shift){
s->dsp.get_pixels(s->block[6], ptr_cb + (dct_offset>>1), wrap_c);
s->dsp.get_pixels(s->block[7], ptr_cr + (dct_offset>>1), wrap_c);
}
}
}else{
op_pixels_func (*op_pix)[4];
qpel_mc_func (*op_qpix)[16];
uint8_t *dest_y, *dest_cb, *dest_cr;
dest_y = s->dest[0];
dest_cb = s->dest[1];
dest_cr = s->dest[2];
if ((!s->no_rounding) || s->pict_type==FF_B_TYPE){
op_pix = s->dsp.put_pixels_tab;
op_qpix= s->dsp.put_qpel_pixels_tab;
}else{
op_pix = s->dsp.put_no_rnd_pixels_tab;
op_qpix= s->dsp.put_no_rnd_qpel_pixels_tab;
}
if (s->mv_dir & MV_DIR_FORWARD) {
MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix);
op_pix = s->dsp.avg_pixels_tab;
op_qpix= s->dsp.avg_qpel_pixels_tab;
}
if (s->mv_dir & MV_DIR_BACKWARD) {
MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix);
}
if(s->flags&CODEC_FLAG_INTERLACED_DCT){
int progressive_score, interlaced_score;
s->interlaced_dct=0;
progressive_score= s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y, 8)
+s->dsp.ildct_cmp[0](s, dest_y + wrap_y*8, ptr_y + wrap_y*8, wrap_y, 8) - 400;
if(s->avctx->ildct_cmp == FF_CMP_VSSE) progressive_score -= 400;
if(progressive_score>0){
interlaced_score = s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y*2, 8)
+s->dsp.ildct_cmp[0](s, dest_y + wrap_y , ptr_y + wrap_y , wrap_y*2, 8);
if(progressive_score > interlaced_score){
s->interlaced_dct=1;
dct_offset= wrap_y;
wrap_y<<=1;
if (s->chroma_format == CHROMA_422)
wrap_c<<=1;
}
}
}
s->dsp.diff_pixels(s->block[0], ptr_y , dest_y , wrap_y);
s->dsp.diff_pixels(s->block[1], ptr_y + 8, dest_y + 8, wrap_y);
s->dsp.diff_pixels(s->block[2], ptr_y + dct_offset , dest_y + dct_offset , wrap_y);
s->dsp.diff_pixels(s->block[3], ptr_y + dct_offset + 8, dest_y + dct_offset + 8, wrap_y);
if(s->flags&CODEC_FLAG_GRAY){
skip_dct[4]= 1;
skip_dct[5]= 1;
}else{
s->dsp.diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
s->dsp.diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
if(!s->chroma_y_shift){
s->dsp.diff_pixels(s->block[6], ptr_cb + (dct_offset>>1), dest_cb + (dct_offset>>1), wrap_c);
s->dsp.diff_pixels(s->block[7], ptr_cr + (dct_offset>>1), dest_cr + (dct_offset>>1), wrap_c);
}
}
if(s->current_picture.mc_mb_var[s->mb_stride*mb_y+ mb_x]<2*s->qscale*s->qscale){
if(s->dsp.sad[1](NULL, ptr_y , dest_y , wrap_y, 8) < 20*s->qscale) skip_dct[0]= 1;
if(s->dsp.sad[1](NULL, ptr_y + 8, dest_y + 8, wrap_y, 8) < 20*s->qscale) skip_dct[1]= 1;
if(s->dsp.sad[1](NULL, ptr_y +dct_offset , dest_y +dct_offset , wrap_y, 8) < 20*s->qscale) skip_dct[2]= 1;
if(s->dsp.sad[1](NULL, ptr_y +dct_offset+ 8, dest_y +dct_offset+ 8, wrap_y, 8) < 20*s->qscale) skip_dct[3]= 1;
if(s->dsp.sad[1](NULL, ptr_cb , dest_cb , wrap_c, 8) < 20*s->qscale) skip_dct[4]= 1;
if(s->dsp.sad[1](NULL, ptr_cr , dest_cr , wrap_c, 8) < 20*s->qscale) skip_dct[5]= 1;
if(!s->chroma_y_shift){
if(s->dsp.sad[1](NULL, ptr_cb +(dct_offset>>1), dest_cb +(dct_offset>>1), wrap_c, 8) < 20*s->qscale) skip_dct[6]= 1;
if(s->dsp.sad[1](NULL, ptr_cr +(dct_offset>>1), dest_cr +(dct_offset>>1), wrap_c, 8) < 20*s->qscale) skip_dct[7]= 1;
}
}
}
if(s->avctx->quantizer_noise_shaping){
if(!skip_dct[0]) get_visual_weight(weight[0], ptr_y , wrap_y);
if(!skip_dct[1]) get_visual_weight(weight[1], ptr_y + 8, wrap_y);
if(!skip_dct[2]) get_visual_weight(weight[2], ptr_y + dct_offset , wrap_y);
if(!skip_dct[3]) get_visual_weight(weight[3], ptr_y + dct_offset + 8, wrap_y);
if(!skip_dct[4]) get_visual_weight(weight[4], ptr_cb , wrap_c);
if(!skip_dct[5]) get_visual_weight(weight[5], ptr_cr , wrap_c);
if(!s->chroma_y_shift){
if(!skip_dct[6]) get_visual_weight(weight[6], ptr_cb + (dct_offset>>1), wrap_c);
if(!skip_dct[7]) get_visual_weight(weight[7], ptr_cr + (dct_offset>>1), wrap_c);
}
memcpy(orig[0], s->block[0], sizeof(DCTELEM)*64*mb_block_count);
}
assert(s->out_format!=FMT_MJPEG || s->qscale==8);
{
for(i=0;i<mb_block_count;i++) {
if(!skip_dct[i]){
int overflow;
s->block_last_index[i] = s->dct_quantize(s, s->block[i], i, s->qscale, &overflow);
if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
}else
s->block_last_index[i]= -1;
}
if(s->avctx->quantizer_noise_shaping){
for(i=0;i<mb_block_count;i++) {
if(!skip_dct[i]){
s->block_last_index[i] = dct_quantize_refine(s, s->block[i], weight[i], orig[i], i, s->qscale);
}
}
}
if(s->luma_elim_threshold && !s->mb_intra)
for(i=0; i<4; i++)
dct_single_coeff_elimination(s, i, s->luma_elim_threshold);
if(s->chroma_elim_threshold && !s->mb_intra)
for(i=4; i<mb_block_count; i++)
dct_single_coeff_elimination(s, i, s->chroma_elim_threshold);
if(s->flags & CODEC_FLAG_CBP_RD){
for(i=0;i<mb_block_count;i++) {
if(s->block_last_index[i] == -1)
s->coded_score[i]= INT_MAX/256;
}
}
}
if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
s->block_last_index[4]=
s->block_last_index[5]= 0;
s->block[4][0]=
s->block[5][0]= (1024 + s->c_dc_scale/2)/ s->c_dc_scale;
}
if(s->alternate_scan && s->dct_quantize != dct_quantize_c){
for(i=0; i<mb_block_count; i++){
int j;
if(s->block_last_index[i]>0){
for(j=63; j>0; j--){
if(s->block[i][ s->intra_scantable.permutated[j] ]) break;
}
s->block_last_index[i]= j;
}
}
}
switch(s->codec_id){
case CODEC_ID_MPEG1VIDEO:
case CODEC_ID_MPEG2VIDEO:
if (ENABLE_MPEG1VIDEO_ENCODER || ENABLE_MPEG2VIDEO_ENCODER)
mpeg1_encode_mb(s, s->block, motion_x, motion_y);
break;
case CODEC_ID_MPEG4:
if (ENABLE_MPEG4_ENCODER)
mpeg4_encode_mb(s, s->block, motion_x, motion_y);
break;
case CODEC_ID_MSMPEG4V2:
case CODEC_ID_MSMPEG4V3:
case CODEC_ID_WMV1:
if (ENABLE_MSMPEG4_ENCODER)
msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
break;
case CODEC_ID_WMV2:
if (ENABLE_WMV2_ENCODER)
ff_wmv2_encode_mb(s, s->block, motion_x, motion_y);
break;
case CODEC_ID_H261:
if (ENABLE_H261_ENCODER)
ff_h261_encode_mb(s, s->block, motion_x, motion_y);
break;
case CODEC_ID_H263:
case CODEC_ID_H263P:
case CODEC_ID_FLV1:
case CODEC_ID_RV10:
case CODEC_ID_RV20:
if (ENABLE_H263_ENCODER || ENABLE_H263P_ENCODER ||
ENABLE_FLV_ENCODER || ENABLE_RV10_ENCODER || ENABLE_RV20_ENCODER)
h263_encode_mb(s, s->block, motion_x, motion_y);
break;
case CODEC_ID_MJPEG:
if (ENABLE_MJPEG_ENCODER)
ff_mjpeg_encode_mb(s, s->block);
break;
default:
assert(0);
}
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/mpegvideo_enc.c/#L1655 |
d2a_code_data_45448 | DECLAREContigPutFunc(putRGBAAcontig8bittile)
{
int samplesperpixel = img->samplesperpixel;
(void) x; (void) y;
fromskew *= samplesperpixel;
while (h-- > 0) {
UNROLL8(w, NOP,
*cp++ = PACK4(pp[0], pp[1], pp[2], pp[3]);
pp += samplesperpixel);
cp += toskew;
pp += fromskew;
}
} | https://gitlab.com/libtiff/libtiff/blob/771a4ea0a98c7a218c9f3add9a05e08d29625758/libtiff/tif_getimage.c/#L1261 |
d2a_code_data_45449 | 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_freep(&st->probe_data.buf);
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/0a14fefd68cc18ce3252edff8a05ee9b3945b694/libavformat/utils.c/#L2528 |
d2a_code_data_45450 | static char *make_config_name(void)
{
const char *t;
size_t len;
char *p;
if ((t = getenv("OPENSSL_CONF")) != NULL)
return OPENSSL_strdup(t);
t = X509_get_default_cert_area();
len = strlen(t) + 1 + strlen(OPENSSL_CONF) + 1;
p = app_malloc(len, "config filename buffer");
strcpy(p, t);
#ifndef OPENSSL_SYS_VMS
strcat(p, "/");
#endif
strcat(p, OPENSSL_CONF);
return p;
} | https://github.com/openssl/openssl/blob/ce506d27ab5e7d17dfe3fe649768a0d19b6c86ee/apps/openssl.c/#L111 |
d2a_code_data_45451 | 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_45452 | 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->neg = b->neg;
a->top = b->top;
a->flags |= b->flags & BN_FLG_FIXED_TOP;
bn_check_top(a);
return a;
} | https://github.com/openssl/openssl/blob/260a16f33682a819414fcba6161708a5e6bdff50/crypto/bn/bn_lib.c/#L291 |
d2a_code_data_45453 | char *X509_NAME_oneline(X509_NAME *a, char *buf, int len)
{
X509_NAME_ENTRY *ne;
int i;
int n, lold, l, l1, l2, num, j, type;
const char *s;
char *p;
unsigned char *q;
BUF_MEM *b = NULL;
static const char hex[17] = "0123456789ABCDEF";
int gs_doit[4];
char tmp_buf[80];
#ifdef CHARSET_EBCDIC
unsigned char ebcdic_buf[1024];
#endif
if (buf == NULL) {
if ((b = BUF_MEM_new()) == NULL)
goto err;
if (!BUF_MEM_grow(b, 200))
goto err;
b->data[0] = '\0';
len = 200;
} else if (len == 0) {
return NULL;
}
if (a == NULL) {
if (b) {
buf = b->data;
OPENSSL_free(b);
}
strncpy(buf, "NO X509_NAME", len);
buf[len - 1] = '\0';
return buf;
}
len--;
l = 0;
for (i = 0; i < sk_X509_NAME_ENTRY_num(a->entries); i++) {
ne = sk_X509_NAME_ENTRY_value(a->entries, i);
n = OBJ_obj2nid(ne->object);
if ((n == NID_undef) || ((s = OBJ_nid2sn(n)) == NULL)) {
i2t_ASN1_OBJECT(tmp_buf, sizeof(tmp_buf), ne->object);
s = tmp_buf;
}
l1 = strlen(s);
type = ne->value->type;
num = ne->value->length;
q = ne->value->data;
#ifdef CHARSET_EBCDIC
if (type == V_ASN1_GENERALSTRING ||
type == V_ASN1_VISIBLESTRING ||
type == V_ASN1_PRINTABLESTRING ||
type == V_ASN1_TELETEXSTRING ||
type == V_ASN1_VISIBLESTRING || type == V_ASN1_IA5STRING) {
ascii2ebcdic(ebcdic_buf, q, (num > (int)sizeof(ebcdic_buf))
? (int)sizeof(ebcdic_buf) : num);
q = ebcdic_buf;
}
#endif
if ((type == V_ASN1_GENERALSTRING) && ((num % 4) == 0)) {
gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 0;
for (j = 0; j < num; j++)
if (q[j] != 0)
gs_doit[j & 3] = 1;
if (gs_doit[0] | gs_doit[1] | gs_doit[2])
gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 1;
else {
gs_doit[0] = gs_doit[1] = gs_doit[2] = 0;
gs_doit[3] = 1;
}
} else
gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 1;
for (l2 = j = 0; j < num; j++) {
if (!gs_doit[j & 3])
continue;
l2++;
#ifndef CHARSET_EBCDIC
if ((q[j] < ' ') || (q[j] > '~'))
l2 += 3;
#else
if ((os_toascii[q[j]] < os_toascii[' ']) ||
(os_toascii[q[j]] > os_toascii['~']))
l2 += 3;
#endif
}
lold = l;
l += 1 + l1 + 1 + l2;
if (b != NULL) {
if (!BUF_MEM_grow(b, l + 1))
goto err;
p = &(b->data[lold]);
} else if (l > len) {
break;
} else
p = &(buf[lold]);
*(p++) = '/';
memcpy(p, s, (unsigned int)l1);
p += l1;
*(p++) = '=';
#ifndef CHARSET_EBCDIC
q = ne->value->data;
#endif
for (j = 0; j < num; j++) {
if (!gs_doit[j & 3])
continue;
#ifndef CHARSET_EBCDIC
n = q[j];
if ((n < ' ') || (n > '~')) {
*(p++) = '\\';
*(p++) = 'x';
*(p++) = hex[(n >> 4) & 0x0f];
*(p++) = hex[n & 0x0f];
} else
*(p++) = n;
#else
n = os_toascii[q[j]];
if ((n < os_toascii[' ']) || (n > os_toascii['~'])) {
*(p++) = '\\';
*(p++) = 'x';
*(p++) = hex[(n >> 4) & 0x0f];
*(p++) = hex[n & 0x0f];
} else
*(p++) = q[j];
#endif
}
*p = '\0';
}
if (b != NULL) {
p = b->data;
OPENSSL_free(b);
} else
p = buf;
if (i == 0)
*p = '\0';
return (p);
err:
X509err(X509_F_X509_NAME_ONELINE, ERR_R_MALLOC_FAILURE);
BUF_MEM_free(b);
return (NULL);
} | https://github.com/openssl/openssl/blob/b33d1141b6dcce947708b984c5e9e91dad3d675d/crypto/x509/x509_obj.c/#L97 |
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