id stringlengths 19 19 | content stringlengths 22 69.3k | max_stars_repo_path stringlengths 91 133 |
|---|---|---|
d2a_code_data_44654 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | https://github.com/openssl/openssl/blob/a9d14832fd98cb0c13b53fddea39765fb259358c/crypto/bn/bn_ctx.c/#L355 |
d2a_code_data_44655 | 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_44656 | int CRYPTO_ocb128_copy_ctx(OCB128_CONTEXT *dest, OCB128_CONTEXT *src,
void *keyenc, void *keydec)
{
memcpy(dest, src, sizeof(OCB128_CONTEXT));
if (keyenc)
dest->keyenc = keyenc;
if (keydec)
dest->keydec = keydec;
if (src->l) {
dest->l = OPENSSL_malloc(src->max_l_index * 16);
if (dest->l == NULL)
return 0;
memcpy(dest->l, src->l, (src->l_index + 1) * 16);
}
return 1;
} | https://github.com/openssl/openssl/blob/ac33c5a477568127ad99b1260a8978477de50e36/crypto/modes/ocb128.c/#L254 |
d2a_code_data_44657 | static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
{
InputStream *ist = s->opaque;
const enum AVPixelFormat *p;
int ret;
for (p = pix_fmts; *p != -1; p++) {
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
const HWAccel *hwaccel;
if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
break;
hwaccel = get_hwaccel(*p);
if (!hwaccel ||
(ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
(ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
continue;
ret = hwaccel->init(s);
if (ret < 0) {
if (ist->hwaccel_id == hwaccel->id) {
av_log(NULL, AV_LOG_FATAL,
"%s hwaccel requested for input stream #%d:%d, "
"but cannot be initialized.\n", hwaccel->name,
ist->file_index, ist->st->index);
return AV_PIX_FMT_NONE;
}
continue;
}
ist->active_hwaccel_id = hwaccel->id;
ist->hwaccel_pix_fmt = *p;
break;
}
return *p;
} | https://github.com/libav/libav/blob/1db8eb154908cde577477b6ab17430a0cd46b7bd/avconv.c/#L1519 |
d2a_code_data_44658 | static void doall_util_fn(_LHASH *lh, int use_arg, LHASH_DOALL_FN_TYPE func,
LHASH_DOALL_ARG_FN_TYPE func_arg, void *arg)
{
int i;
LHASH_NODE *a,*n;
if (lh == NULL)
return;
for (i=lh->num_nodes-1; i>=0; i--)
{
a=lh->b[i];
while (a != NULL)
{
n=a->next;
if(use_arg)
func_arg(a->data,arg);
else
func(a->data);
a=n;
}
}
} | https://github.com/openssl/openssl/blob/7a71af86ce75751f3cb2e9e9e3f2e0715b39b101/crypto/lhash/lhash.c/#L281 |
d2a_code_data_44659 | static void mpegts_write_pes(AVFormatContext *s, AVStream *st,
const uint8_t *payload, int payload_size,
int64_t pts, int64_t dts)
{
MpegTSWriteStream *ts_st = st->priv_data;
uint8_t buf[TS_PACKET_SIZE];
uint8_t *q;
int val, is_start, len, header_len, write_pcr, private_code, flags;
int afc_len, stuffing_len;
int64_t pcr = -1;
is_start = 1;
while (payload_size > 0) {
retransmit_si_info(s);
write_pcr = 0;
if (ts_st->pid == ts_st->service->pcr_pid) {
ts_st->service->pcr_packet_count++;
if (ts_st->service->pcr_packet_count >=
ts_st->service->pcr_packet_freq) {
ts_st->service->pcr_packet_count = 0;
write_pcr = 1;
pcr = pts;
}
}
q = buf;
*q++ = 0x47;
val = (ts_st->pid >> 8);
if (is_start)
val |= 0x40;
*q++ = val;
*q++ = ts_st->pid;
*q++ = 0x10 | ts_st->cc | (write_pcr ? 0x20 : 0);
ts_st->cc = (ts_st->cc + 1) & 0xf;
if (write_pcr) {
*q++ = 7;
*q++ = 0x10;
*q++ = pcr >> 25;
*q++ = pcr >> 17;
*q++ = pcr >> 9;
*q++ = pcr >> 1;
*q++ = (pcr & 1) << 7;
*q++ = 0;
}
if (is_start) {
*q++ = 0x00;
*q++ = 0x00;
*q++ = 0x01;
private_code = 0;
if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
*q++ = 0xe0;
} else if (st->codec->codec_type == CODEC_TYPE_AUDIO &&
(st->codec->codec_id == CODEC_ID_MP2 ||
st->codec->codec_id == CODEC_ID_MP3)) {
*q++ = 0xc0;
} else {
*q++ = 0xbd;
if (st->codec->codec_type == CODEC_TYPE_SUBTITLE) {
private_code = 0x20;
}
}
header_len = 0;
flags = 0;
if (pts != AV_NOPTS_VALUE) {
header_len += 5;
flags |= 0x80;
}
if (dts != AV_NOPTS_VALUE) {
header_len += 5;
flags |= 0x40;
}
len = payload_size + header_len + 3;
if (private_code != 0)
len++;
*q++ = len >> 8;
*q++ = len;
val = 0x80;
if (st->codec->codec_type == CODEC_TYPE_SUBTITLE)
val |= 0x04;
*q++ = val;
*q++ = flags;
*q++ = header_len;
if (pts != AV_NOPTS_VALUE) {
write_pts(q, flags >> 6, pts);
q += 5;
}
if (dts != AV_NOPTS_VALUE) {
write_pts(q, 1, dts);
q += 5;
}
if (private_code != 0)
*q++ = private_code;
is_start = 0;
}
header_len = q - buf;
len = TS_PACKET_SIZE - header_len;
if (len > payload_size)
len = payload_size;
stuffing_len = TS_PACKET_SIZE - header_len - len;
if (stuffing_len > 0) {
if (buf[3] & 0x20) {
afc_len = buf[4] + 1;
memmove(buf + 4 + afc_len + stuffing_len,
buf + 4 + afc_len,
header_len - (4 + afc_len));
buf[4] += stuffing_len;
memset(buf + 4 + afc_len, 0xff, stuffing_len);
} else {
memmove(buf + 4 + stuffing_len, buf + 4, header_len - 4);
buf[3] |= 0x20;
buf[4] = stuffing_len - 1;
if (stuffing_len >= 2) {
buf[5] = 0x00;
memset(buf + 6, 0xff, stuffing_len - 2);
}
}
}
memcpy(buf + TS_PACKET_SIZE - len, payload, len);
payload += len;
payload_size -= len;
put_buffer(s->pb, buf, TS_PACKET_SIZE);
}
put_flush_packet(s->pb);
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavformat/mpegtsenc.c/#L608 |
d2a_code_data_44660 | static CONF_MODULE *module_add(DSO *dso, const char *name,
conf_init_func *ifunc, conf_finish_func *ffunc)
{
CONF_MODULE *tmod = NULL;
if (supported_modules == NULL)
supported_modules = sk_CONF_MODULE_new_null();
if (supported_modules == NULL)
return NULL;
tmod = OPENSSL_zalloc(sizeof(*tmod));
if (tmod == NULL)
return NULL;
tmod->dso = dso;
tmod->name = OPENSSL_strdup(name);
tmod->init = ifunc;
tmod->finish = ffunc;
if (!sk_CONF_MODULE_push(supported_modules, tmod)) {
OPENSSL_free(tmod);
return NULL;
}
return tmod;
} | https://github.com/openssl/openssl/blob/ec04e866343d40a1e3e8e5db79557e279a2dd0d8/crypto/conf/conf_mod.c/#L294 |
d2a_code_data_44661 | 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/#L1075 |
d2a_code_data_44662 | static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
{
BN_ULONG *a = NULL;
bn_check_top(b);
if (words > (INT_MAX / (4 * BN_BITS2))) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);
return NULL;
}
if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);
return NULL;
}
if (BN_get_flags(b, BN_FLG_SECURE))
a = OPENSSL_secure_zalloc(words * sizeof(*a));
else
a = OPENSSL_zalloc(words * sizeof(*a));
if (a == NULL) {
BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);
return NULL;
}
assert(b->top <= words);
if (b->top > 0)
memcpy(a, b->d, sizeof(*a) * b->top);
return a;
} | https://github.com/openssl/openssl/blob/b48d4397b8ee4256f0b0a115eb99f27ae89995e0/crypto/bn/bn_lib.c/#L233 |
d2a_code_data_44663 | static void pred8x8l_vertical_left_c(uint8_t *src, int has_topleft, int has_topright, int stride)
{
PREDICT_8x8_LOAD_TOP;
PREDICT_8x8_LOAD_TOPRIGHT;
SRC(0,0)= (t0 + t1 + 1) >> 1;
SRC(0,1)= (t0 + 2*t1 + t2 + 2) >> 2;
SRC(0,2)=SRC(1,0)= (t1 + t2 + 1) >> 1;
SRC(0,3)=SRC(1,1)= (t1 + 2*t2 + t3 + 2) >> 2;
SRC(0,4)=SRC(1,2)=SRC(2,0)= (t2 + t3 + 1) >> 1;
SRC(0,5)=SRC(1,3)=SRC(2,1)= (t2 + 2*t3 + t4 + 2) >> 2;
SRC(0,6)=SRC(1,4)=SRC(2,2)=SRC(3,0)= (t3 + t4 + 1) >> 1;
SRC(0,7)=SRC(1,5)=SRC(2,3)=SRC(3,1)= (t3 + 2*t4 + t5 + 2) >> 2;
SRC(1,6)=SRC(2,4)=SRC(3,2)=SRC(4,0)= (t4 + t5 + 1) >> 1;
SRC(1,7)=SRC(2,5)=SRC(3,3)=SRC(4,1)= (t4 + 2*t5 + t6 + 2) >> 2;
SRC(2,6)=SRC(3,4)=SRC(4,2)=SRC(5,0)= (t5 + t6 + 1) >> 1;
SRC(2,7)=SRC(3,5)=SRC(4,3)=SRC(5,1)= (t5 + 2*t6 + t7 + 2) >> 2;
SRC(3,6)=SRC(4,4)=SRC(5,2)=SRC(6,0)= (t6 + t7 + 1) >> 1;
SRC(3,7)=SRC(4,5)=SRC(5,3)=SRC(6,1)= (t6 + 2*t7 + t8 + 2) >> 2;
SRC(4,6)=SRC(5,4)=SRC(6,2)=SRC(7,0)= (t7 + t8 + 1) >> 1;
SRC(4,7)=SRC(5,5)=SRC(6,3)=SRC(7,1)= (t7 + 2*t8 + t9 + 2) >> 2;
SRC(5,6)=SRC(6,4)=SRC(7,2)= (t8 + t9 + 1) >> 1;
SRC(5,7)=SRC(6,5)=SRC(7,3)= (t8 + 2*t9 + t10 + 2) >> 2;
SRC(6,6)=SRC(7,4)= (t9 + t10 + 1) >> 1;
SRC(6,7)=SRC(7,5)= (t9 + 2*t10 + t11 + 2) >> 2;
SRC(7,6)= (t10 + t11 + 1) >> 1;
SRC(7,7)= (t10 + 2*t11 + t12 + 2) >> 2;
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/h264pred.c/#L948 |
d2a_code_data_44664 | 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);
if (BN_get_flags(b, BN_FLG_CONSTTIME) != 0)
BN_set_flags(a, BN_FLG_CONSTTIME);
a->top = b->top;
a->neg = b->neg;
bn_check_top(a);
return a;
} | https://github.com/openssl/openssl/blob/92b1b9a8871530f26ef7df972111297ffa721be2/crypto/bn/bn_lib.c/#L322 |
d2a_code_data_44665 | int 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,
size_t 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);
size_t md_size, md_block_size = 64;
size_t 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;
size_t 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];
size_t i, j;
unsigned md_out_size_u;
EVP_MD_CTX *md_ctx = NULL;
size_t md_length_size = 8;
char length_is_big_endian = 1;
int ret;
if (!ossl_assert(data_plus_mac_plus_padding_size < 1024 * 1024))
return 0;
switch (EVP_MD_CTX_type(ctx)) {
case NID_md5:
if (MD5_Init((MD5_CTX *)md_state.c) <= 0)
return 0;
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:
if (SHA1_Init((SHA_CTX *)md_state.c) <= 0)
return 0;
md_final_raw = tls1_sha1_final_raw;
md_transform =
(void (*)(void *ctx, const unsigned char *block))SHA1_Transform;
md_size = 20;
break;
case NID_sha224:
if (SHA224_Init((SHA256_CTX *)md_state.c) <= 0)
return 0;
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:
if (SHA256_Init((SHA256_CTX *)md_state.c) <= 0)
return 0;
md_final_raw = tls1_sha256_final_raw;
md_transform =
(void (*)(void *ctx, const unsigned char *block))SHA256_Transform;
md_size = 32;
break;
case NID_sha384:
if (SHA384_Init((SHA512_CTX *)md_state.c) <= 0)
return 0;
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:
if (SHA512_Init((SHA512_CTX *)md_state.c) <= 0)
return 0;
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;
default:
if (md_out_size != NULL)
*md_out_size = 0;
return ossl_assert(0);
}
if (!ossl_assert(md_length_size <= MAX_HASH_BIT_COUNT_BYTES)
|| !ossl_assert(md_block_size <= MAX_HASH_BLOCK_SIZE)
|| !ossl_assert(md_size <= EVP_MAX_MD_SIZE))
return 0;
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);
if (!ossl_assert(mac_secret_length <= sizeof(hmac_pad)))
return 0;
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) {
size_t overhang;
if (header_length <= md_block_size) {
return 0;
}
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_s(i, index_a);
unsigned char is_block_b = constant_time_eq_8_s(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_s(j, c);
is_past_cp1 = is_block_a & constant_time_ge_8_s(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;
}
md_ctx = EVP_MD_CTX_new();
if (md_ctx == NULL)
goto err;
if (EVP_DigestInit_ex(md_ctx, EVP_MD_CTX_md(ctx), NULL ) <= 0)
goto err;
if (is_sslv3) {
memset(hmac_pad, 0x5c, sslv3_pad_length);
if (EVP_DigestUpdate(md_ctx, mac_secret, mac_secret_length) <= 0
|| EVP_DigestUpdate(md_ctx, hmac_pad, sslv3_pad_length) <= 0
|| EVP_DigestUpdate(md_ctx, mac_out, md_size) <= 0)
goto err;
} else {
for (i = 0; i < md_block_size; i++)
hmac_pad[i] ^= 0x6a;
if (EVP_DigestUpdate(md_ctx, hmac_pad, md_block_size) <= 0
|| EVP_DigestUpdate(md_ctx, mac_out, md_size) <= 0)
goto err;
}
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_free(md_ctx);
return 1;
err:
EVP_MD_CTX_free(md_ctx);
return 0;
} | https://github.com/openssl/openssl/blob/dc5831da59e9bfad61ba425d886a0b06ac160cd6/ssl/s3_cbc.c/#L323 |
d2a_code_data_44666 | static void contract(LHASH *lh)
{
LHASH_NODE **n,*n1,*np;
np=lh->b[lh->p+lh->pmax-1];
lh->b[lh->p+lh->pmax-1]=NULL;
if (lh->p == 0)
{
n=(LHASH_NODE **)OPENSSL_realloc(lh->b,
(unsigned int)(sizeof(LHASH_NODE *)*lh->pmax));
if (n == NULL)
{
lh->error++;
return;
}
lh->num_contract_reallocs++;
lh->num_alloc_nodes/=2;
lh->pmax/=2;
lh->p=lh->pmax-1;
lh->b=n;
}
else
lh->p--;
lh->num_nodes--;
lh->num_contracts++;
n1=lh->b[(int)lh->p];
if (n1 == NULL)
lh->b[(int)lh->p]=np;
else
{
while (n1->next != NULL)
n1=n1->next;
n1->next=np;
}
} | https://github.com/openssl/openssl/blob/02756aa8ba36af6e718d7a07c4e6bd8ad12e7ba1/crypto/lhash/lhash.c/#L368 |
d2a_code_data_44667 | static EVP_PKEY *
load_netscape_key(BIO *err, BIO *key, const char *file,
const char *key_descrip, int format)
{
EVP_PKEY *pkey;
BUF_MEM *buf;
RSA *rsa;
const unsigned char *p;
int size, i;
buf=BUF_MEM_new();
pkey = EVP_PKEY_new();
size = 0;
if (buf == NULL || pkey == NULL)
goto error;
for (;;)
{
if (!BUF_MEM_grow_clean(buf,size+1024*10))
goto error;
i = BIO_read(key, &(buf->data[size]), 1024*10);
size += i;
if (i == 0)
break;
if (i < 0)
{
BIO_printf(err, "Error reading %s %s",
key_descrip, file);
goto error;
}
}
p=(unsigned char *)buf->data;
rsa = d2i_RSA_NET(NULL,&p,(long)size,NULL,
(format == FORMAT_IISSGC ? 1 : 0));
if (rsa == NULL)
goto error;
BUF_MEM_free(buf);
EVP_PKEY_set1_RSA(pkey, rsa);
return pkey;
error:
BUF_MEM_free(buf);
EVP_PKEY_free(pkey);
return NULL;
} | https://github.com/openssl/openssl/blob/03ddbdd9b99ea60d0967b831ffc1fe93ae7f9792/apps/apps.c/#L1019 |
d2a_code_data_44668 | static inline void packet_forward(PACKET *pkt, size_t len)
{
pkt->curr += len;
pkt->remaining -= len;
} | https://github.com/openssl/openssl/blob/f8e0a5573820bd7318782d4954c6643ff7e58102/ssl/packet_locl.h/#L83 |
d2a_code_data_44669 | void
ngx_md5_update(ngx_md5_t *ctx, const void *data, size_t size)
{
size_t used, free;
used = (size_t) (ctx->bytes & 0x3f);
ctx->bytes += size;
if (used) {
free = 64 - used;
if (size < free) {
ngx_memcpy(&ctx->buffer[used], data, size);
return;
}
ngx_memcpy(&ctx->buffer[used], data, free);
data = (u_char *) data + free;
size -= free;
(void) ngx_md5_body(ctx, ctx->buffer, 64);
}
if (size >= 64) {
data = ngx_md5_body(ctx, data, size & ~(size_t) 0x3f);
size &= 0x3f;
}
ngx_memcpy(ctx->buffer, data, size);
} | https://github.com/nginx/nginx/blob/5544756296e5abaecb5f640753d6de939b701035/src/core/ngx_md5.c/#L48 |
d2a_code_data_44670 | void
TIFFSwabArrayOfLong(register uint32* lp, tmsize_t n)
{
register unsigned char *cp;
register unsigned char t;
assert(sizeof(uint32)==4);
while (n-- > 0) {
cp = (unsigned char *)lp;
t = cp[3]; cp[3] = cp[0]; cp[0] = t;
t = cp[2]; cp[2] = cp[1]; cp[1] = t;
lp++;
}
} | https://gitlab.com/libtiff/libtiff/blob/771a4ea0a98c7a218c9f3add9a05e08d29625758/libtiff/tif_swab.c/#L113 |
d2a_code_data_44671 | int BN_hex2bn(BIGNUM **bn, const char *a)
{
BIGNUM *ret = NULL;
BN_ULONG l = 0;
int neg = 0, h, m, i, j, k, c;
int num;
if ((a == NULL) || (*a == '\0'))
return (0);
if (*a == '-') {
neg = 1;
a++;
}
for (i = 0; isxdigit((unsigned char)a[i]); i++) ;
num = i + neg;
if (bn == NULL)
return (num);
if (*bn == NULL) {
if ((ret = BN_new()) == NULL)
return (0);
} else {
ret = *bn;
BN_zero(ret);
}
if (bn_expand(ret, i * 4) == NULL)
goto err;
j = i;
m = 0;
h = 0;
while (j > 0) {
m = ((BN_BYTES * 2) <= j) ? (BN_BYTES * 2) : j;
l = 0;
for (;;) {
c = a[j - m];
if ((c >= '0') && (c <= '9'))
k = c - '0';
else if ((c >= 'a') && (c <= 'f'))
k = c - 'a' + 10;
else if ((c >= 'A') && (c <= 'F'))
k = c - 'A' + 10;
else
k = 0;
l = (l << 4) | k;
if (--m <= 0) {
ret->d[h++] = l;
break;
}
}
j -= (BN_BYTES * 2);
}
ret->top = h;
bn_correct_top(ret);
ret->neg = neg;
*bn = ret;
bn_check_top(ret);
return (num);
err:
if (*bn == NULL)
BN_free(ret);
return (0);
} | https://github.com/openssl/openssl/blob/9c46f4b9cd4912b61cb546c48b678488d7f26ed6/crypto/bn/bn_print.c/#L213 |
d2a_code_data_44672 | 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/#L1169 |
d2a_code_data_44673 | 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_44674 | int asn1_time_to_tm(struct tm *tm, const ASN1_TIME *d)
{
static const int min[9] = { 0, 0, 1, 1, 0, 0, 0, 0, 0 };
static const int max[9] = { 99, 99, 12, 31, 23, 59, 59, 12, 59 };
static const int mdays[12] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
char *a;
int n, i, i2, l, o, min_l = 11, strict = 0, end = 6, btz = 5, md;
struct tm tmp;
#if defined(CHARSET_EBCDIC)
const char upper_z = 0x5A, num_zero = 0x30, period = 0x2E, minus = 0x2D, plus = 0x2B;
#else
const char upper_z = 'Z', num_zero = '0', period = '.', minus = '-', plus = '+';
#endif
if (d->type == V_ASN1_UTCTIME) {
if (d->flags & ASN1_STRING_FLAG_X509_TIME) {
min_l = 13;
strict = 1;
}
} else if (d->type == V_ASN1_GENERALIZEDTIME) {
end = 7;
btz = 6;
if (d->flags & ASN1_STRING_FLAG_X509_TIME) {
min_l = 15;
strict = 1;
} else {
min_l = 13;
}
} else {
return 0;
}
l = d->length;
a = (char *)d->data;
o = 0;
memset(&tmp, 0, sizeof(tmp));
if (l < min_l)
goto err;
for (i = 0; i < end; i++) {
if (!strict && (i == btz) && ((a[o] == upper_z) || (a[o] == plus) || (a[o] == minus))) {
i++;
break;
}
if (!ascii_isdigit(a[o]))
goto err;
n = a[o] - num_zero;
if (++o == l)
goto err;
if (!ascii_isdigit(a[o]))
goto err;
n = (n * 10) + a[o] - num_zero;
if (++o == l)
goto err;
i2 = (d->type == V_ASN1_UTCTIME) ? i + 1 : i;
if ((n < min[i2]) || (n > max[i2]))
goto err;
switch (i2) {
case 0:
tmp.tm_year = n * 100 - 1900;
break;
case 1:
if (d->type == V_ASN1_UTCTIME)
tmp.tm_year = n < 50 ? n + 100 : n;
else
tmp.tm_year += n;
break;
case 2:
tmp.tm_mon = n - 1;
break;
case 3:
if (tmp.tm_mon == 1) {
md = mdays[1] + leap_year(tmp.tm_year + 1900);
} else {
md = mdays[tmp.tm_mon];
}
if (n > md)
goto err;
tmp.tm_mday = n;
determine_days(&tmp);
break;
case 4:
tmp.tm_hour = n;
break;
case 5:
tmp.tm_min = n;
break;
case 6:
tmp.tm_sec = n;
break;
}
}
if (d->type == V_ASN1_GENERALIZEDTIME && a[o] == period) {
if (strict)
goto err;
if (++o == l)
goto err;
i = o;
while ((o < l) && ascii_isdigit(a[o]))
o++;
if (i == o)
goto err;
if (o == l)
goto err;
}
if (a[o] == upper_z) {
o++;
} else if (!strict && ((a[o] == plus) || (a[o] == minus))) {
int offsign = a[o] == minus ? 1 : -1;
int offset = 0;
o++;
if (o + 4 != l)
goto err;
for (i = end; i < end + 2; i++) {
if (!ascii_isdigit(a[o]))
goto err;
n = a[o] - num_zero;
o++;
if (!ascii_isdigit(a[o]))
goto err;
n = (n * 10) + a[o] - num_zero;
i2 = (d->type == V_ASN1_UTCTIME) ? i + 1 : i;
if ((n < min[i2]) || (n > max[i2]))
goto err;
if (tm != NULL) {
if (i == end)
offset = n * 3600;
else if (i == end + 1)
offset += n * 60;
}
o++;
}
if (offset && !OPENSSL_gmtime_adj(&tmp, 0, offset * offsign))
goto err;
} else {
goto err;
}
if (o == l) {
if (tm != NULL)
*tm = tmp;
return 1;
}
err:
return 0;
} | https://github.com/openssl/openssl/blob/d95422761116791966dcd0dd7035b46795482482/crypto/asn1/a_time.c/#L238 |
d2a_code_data_44675 | 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/9aaa2077e5879b153d2ce6bea2e42f0c349a083f/libavcodec/imgconvert.c/#L2948 |
d2a_code_data_44676 | static void copy_parameter_set(void **to, void **from, int count, int size)
{
int i;
for (i = 0; i < count; i++) {
if (to[i] && !from[i])
av_freep(&to[i]);
else if (from[i] && !to[i])
to[i] = av_malloc(size);
if (from[i])
memcpy(to[i], from[i], size);
}
} | https://github.com/libav/libav/blob/b89e8759e053792704741d08cbc41c9ac3c7ed63/libavcodec/h264.c/#L1617 |
d2a_code_data_44677 | 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_44678 | static void doall_util_fn(OPENSSL_LHASH *lh, int use_arg,
OPENSSL_LH_DOALL_FUNC func,
OPENSSL_LH_DOALL_FUNCARG func_arg, void *arg)
{
int i;
OPENSSL_LH_NODE *a, *n;
if (lh == NULL)
return;
for (i = lh->num_nodes - 1; i >= 0; i--) {
a = lh->b[i];
while (a != NULL) {
n = a->next;
if (use_arg)
func_arg(a->data, arg);
else
func(a->data);
a = n;
}
}
} | https://github.com/openssl/openssl/blob/ee6d9dfb39ff90a31027c51b80362d274918e3dd/crypto/lhash/lhash.c/#L164 |
d2a_code_data_44679 | void engine_cleanup_add_last(ENGINE_CLEANUP_CB *cb)
{
ENGINE_CLEANUP_ITEM *item;
if (!int_cleanup_check(1))
return;
item = int_cleanup_item(cb);
if (item)
sk_ENGINE_CLEANUP_ITEM_push(cleanup_stack, item);
} | https://github.com/openssl/openssl/blob/ec04e866343d40a1e3e8e5db79557e279a2dd0d8/crypto/engine/eng_lib.c/#L189 |
d2a_code_data_44680 | static int encode_test_run(EVP_TEST *t)
{
ENCODE_DATA *edata = t->data;
unsigned char *encode_out = NULL, *decode_out = NULL;
int output_len, chunk_len;
EVP_ENCODE_CTX *decode_ctx;
if (!TEST_ptr(decode_ctx = EVP_ENCODE_CTX_new())) {
t->err = "INTERNAL_ERROR";
goto err;
}
if (edata->encoding == BASE64_CANONICAL_ENCODING) {
EVP_ENCODE_CTX *encode_ctx;
if (!TEST_ptr(encode_ctx = EVP_ENCODE_CTX_new())
|| !TEST_ptr(encode_out =
OPENSSL_malloc(EVP_ENCODE_LENGTH(edata->input_len))))
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 (!compare_mem(edata->output, edata->output_len,
encode_out, output_len)) {
t->err = "BAD_ENCODING";
goto err;
}
}
if (!TEST_ptr(decode_out =
OPENSSL_malloc(EVP_DECODE_LENGTH(edata->output_len))))
goto err;
EVP_DecodeInit(decode_ctx);
if (EVP_DecodeUpdate(decode_ctx, decode_out, &chunk_len, edata->output,
edata->output_len) < 0) {
t->err = "DECODE_ERROR";
goto err;
}
output_len = chunk_len;
if (EVP_DecodeFinal(decode_ctx, decode_out + chunk_len, &chunk_len) != 1) {
t->err = "DECODE_ERROR";
goto err;
}
output_len += chunk_len;
if (edata->encoding != BASE64_INVALID_ENCODING
&& !compare_mem(edata->input, edata->input_len,
decode_out, output_len)) {
t->err = "BAD_DECODING";
goto err;
}
t->err = NULL;
err:
OPENSSL_free(encode_out);
OPENSSL_free(decode_out);
EVP_ENCODE_CTX_free(decode_ctx);
return 1;
} | https://github.com/openssl/openssl/blob/69b4c01fd26e6eb72b156ed3014522c3295a7669/test/evp_test.c/#L1816 |
d2a_code_data_44681 | 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_44682 | void Poly1305_Update(POLY1305 *ctx, const unsigned char *inp, size_t len)
{
#ifdef POLY1305_ASM
poly1305_blocks_f poly1305_blocks_p = ctx->func.blocks;
#endif
size_t rem, num;
if ((num = ctx->num)) {
rem = POLY1305_BLOCK_SIZE - num;
if (len >= rem) {
memcpy(ctx->data + num, inp, rem);
poly1305_blocks(ctx->opaque, ctx->data, POLY1305_BLOCK_SIZE, 1);
inp += rem;
len -= rem;
} else {
memcpy(ctx->data + num, inp, len);
ctx->num = num + len;
return;
}
}
rem = len % POLY1305_BLOCK_SIZE;
len -= rem;
if (len >= POLY1305_BLOCK_SIZE) {
poly1305_blocks(ctx->opaque, inp, len, 1);
inp += len;
}
if (rem)
memcpy(ctx->data, inp, rem);
ctx->num = rem;
} | https://github.com/openssl/openssl/blob/740b2b9a6cf31b02916a4d18f868e8a95934c083/crypto/poly1305/poly1305.c/#L480 |
d2a_code_data_44683 | int BN_dec2bn(BIGNUM **bn, const char *a)
{
BIGNUM *ret = NULL;
BN_ULONG l = 0;
int neg = 0, i, j;
int num;
if ((a == NULL) || (*a == '\0'))
return (0);
if (*a == '-') {
neg = 1;
a++;
}
for (i = 0; i <= (INT_MAX/4) && isdigit((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 = BN_DEC_NUM - (i % BN_DEC_NUM);
if (j == BN_DEC_NUM)
j = 0;
l = 0;
while (--i >= 0) {
l *= 10;
l += *a - '0';
a++;
if (++j == BN_DEC_NUM) {
if (!BN_mul_word(ret, BN_DEC_CONV)
|| !BN_add_word(ret, l))
goto err;
l = 0;
j = 0;
}
}
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/#L211 |
d2a_code_data_44684 | 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->staticbuf == NULL && (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;
}
if (allocbytes != NULL)
*allocbytes = WPACKET_get_curr(pkt);
return 1;
} | https://github.com/openssl/openssl/blob/6d0b5ee1d6163732b886bc0567dbce08aeade4c1/ssl/packet.c/#L49 |
d2a_code_data_44685 | 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->staticbuf == NULL && (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;
}
if (allocbytes != NULL)
*allocbytes = WPACKET_get_curr(pkt);
return 1;
} | https://github.com/openssl/openssl/blob/d2b53fcdef9e7b482ff1e2d5f305ae798f3d1be2/ssl/packet.c/#L49 |
d2a_code_data_44686 | 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/#L909 |
d2a_code_data_44687 | 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/e5356ebf2216918ad6351d4caa8b58c881c4b0ea/libavformat/mpegts.c/#L692 |
d2a_code_data_44688 | static void unpack_input(const unsigned char *input, unsigned int *output)
{
unsigned int outbuffer[28];
unsigned short inbuffer[10];
unsigned int x;
unsigned int *ptr;
for (x=0;x<20;x+=2)
inbuffer[x/2]=(input[x]<<8)+input[x+1];
ptr=outbuffer;
*(ptr++)=27;
*(ptr++)=(inbuffer[0]>>10)&0x3f;
*(ptr++)=(inbuffer[0]>>5)&0x1f;
*(ptr++)=inbuffer[0]&0x1f;
*(ptr++)=(inbuffer[1]>>12)&0xf;
*(ptr++)=(inbuffer[1]>>8)&0xf;
*(ptr++)=(inbuffer[1]>>5)&7;
*(ptr++)=(inbuffer[1]>>2)&7;
*(ptr++)=((inbuffer[1]<<1)&6)|((inbuffer[2]>>15)&1);
*(ptr++)=(inbuffer[2]>>12)&7;
*(ptr++)=(inbuffer[2]>>10)&3;
*(ptr++)=(inbuffer[2]>>5)&0x1f;
*(ptr++)=((inbuffer[2]<<2)&0x7c)|((inbuffer[3]>>14)&3);
*(ptr++)=(inbuffer[3]>>6)&0xff;
*(ptr++)=((inbuffer[3]<<1)&0x7e)|((inbuffer[4]>>15)&1);
*(ptr++)=(inbuffer[4]>>8)&0x7f;
*(ptr++)=(inbuffer[4]>>1)&0x7f;
*(ptr++)=((inbuffer[4]<<7)&0x80)|((inbuffer[5]>>9)&0x7f);
*(ptr++)=(inbuffer[5]>>2)&0x7f;
*(ptr++)=((inbuffer[5]<<5)&0x60)|((inbuffer[6]>>11)&0x1f);
*(ptr++)=(inbuffer[6]>>4)&0x7f;
*(ptr++)=((inbuffer[6]<<4)&0xf0)|((inbuffer[7]>>12)&0xf);
*(ptr++)=(inbuffer[7]>>5)&0x7f;
*(ptr++)=((inbuffer[7]<<2)&0x7c)|((inbuffer[8]>>14)&3);
*(ptr++)=(inbuffer[8]>>7)&0x7f;
*(ptr++)=((inbuffer[8]<<1)&0xfe)|((inbuffer[9]>>15)&1);
*(ptr++)=(inbuffer[9]>>8)&0x7f;
*(ptr++)=(inbuffer[9]>>1)&0x7f;
*(output++)=outbuffer[11];
for (x=1;x<11;*(output++)=outbuffer[x++]);
ptr=outbuffer+12;
for (x=0;x<16;x+=4)
{
*(output++)=ptr[x];
*(output++)=ptr[x+2];
*(output++)=ptr[x+3];
*(output++)=ptr[x+1];
}
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/ra144.c/#L269 |
d2a_code_data_44689 | int test_sub(BIO *bp)
{
BIGNUM *a, *b, *c;
int i;
a = BN_new();
b = BN_new();
c = BN_new();
for (i = 0; i < num0 + num1; i++) {
if (i < num1) {
BN_bntest_rand(a, 512, 0, 0);
BN_copy(b, a);
if (BN_set_bit(a, i) == 0)
return (0);
BN_add_word(b, i);
} else {
BN_bntest_rand(b, 400 + i - num1, 0, 0);
a->neg = rand_neg();
b->neg = rand_neg();
}
BN_sub(c, a, b);
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, "\n");
}
BN_add(c, c, b);
BN_sub(c, c, a);
if (!BN_is_zero(c)) {
fprintf(stderr, "Subtract test failed!\n");
return 0;
}
}
BN_free(a);
BN_free(b);
BN_free(c);
return (1);
} | https://github.com/openssl/openssl/blob/d9e309a675900030d7308e36f614962a344816f9/test/bntest.c/#L435 |
d2a_code_data_44690 | static int add_custom_ext_intern(SSL_CTX *ctx, ENDPOINT role,
unsigned int ext_type,
unsigned int context,
SSL_custom_ext_add_cb_ex add_cb,
SSL_custom_ext_free_cb_ex free_cb,
void *add_arg,
SSL_custom_ext_parse_cb_ex parse_cb,
void *parse_arg)
{
custom_ext_methods *exts = &ctx->cert->custext;
custom_ext_method *meth, *tmp;
if (add_cb == NULL && free_cb != NULL)
return 0;
#ifndef OPENSSL_NO_CT
if (ext_type == TLSEXT_TYPE_signed_certificate_timestamp
&& (context & SSL_EXT_CLIENT_HELLO) != 0
&& SSL_CTX_ct_is_enabled(ctx))
return 0;
#endif
if (SSL_extension_supported(ext_type)
&& ext_type != TLSEXT_TYPE_signed_certificate_timestamp)
return 0;
if (ext_type > 0xffff)
return 0;
if (custom_ext_find(exts, role, ext_type, NULL))
return 0;
tmp = OPENSSL_realloc(exts->meths,
(exts->meths_count + 1) * sizeof(custom_ext_method));
if (tmp == NULL)
return 0;
exts->meths = tmp;
meth = exts->meths + exts->meths_count;
memset(meth, 0, sizeof(*meth));
meth->role = role;
meth->context = context;
meth->parse_cb = parse_cb;
meth->add_cb = add_cb;
meth->free_cb = free_cb;
meth->ext_type = ext_type;
meth->add_arg = add_arg;
meth->parse_arg = parse_arg;
exts->meths_count++;
return 1;
} | https://github.com/openssl/openssl/blob/260a16f33682a819414fcba6161708a5e6bdff50/ssl/statem/extensions_cust.c/#L394 |
d2a_code_data_44691 | c448_error_t c448_ed448_verify(
const uint8_t signature[EDDSA_448_SIGNATURE_BYTES],
const uint8_t pubkey[EDDSA_448_PUBLIC_BYTES],
const uint8_t *message, size_t message_len,
uint8_t prehashed, const uint8_t *context,
uint8_t context_len)
{
curve448_point_t pk_point, r_point;
c448_error_t error =
curve448_point_decode_like_eddsa_and_mul_by_ratio(pk_point, pubkey);
curve448_scalar_t challenge_scalar;
curve448_scalar_t response_scalar;
if (C448_SUCCESS != error)
return error;
error =
curve448_point_decode_like_eddsa_and_mul_by_ratio(r_point, signature);
if (C448_SUCCESS != error)
return error;
{
EVP_MD_CTX *hashctx = EVP_MD_CTX_new();
uint8_t challenge[2 * EDDSA_448_PRIVATE_BYTES];
if (hashctx == NULL
|| !hash_init_with_dom(hashctx, prehashed, 0, context,
context_len)
|| !EVP_DigestUpdate(hashctx, signature, EDDSA_448_PUBLIC_BYTES)
|| !EVP_DigestUpdate(hashctx, pubkey, EDDSA_448_PUBLIC_BYTES)
|| !EVP_DigestUpdate(hashctx, message, message_len)
|| !EVP_DigestFinalXOF(hashctx, challenge, sizeof(challenge))) {
EVP_MD_CTX_free(hashctx);
return C448_FAILURE;
}
EVP_MD_CTX_free(hashctx);
curve448_scalar_decode_long(challenge_scalar, challenge,
sizeof(challenge));
OPENSSL_cleanse(challenge, sizeof(challenge));
}
curve448_scalar_sub(challenge_scalar, curve448_scalar_zero,
challenge_scalar);
curve448_scalar_decode_long(response_scalar,
&signature[EDDSA_448_PUBLIC_BYTES],
EDDSA_448_PRIVATE_BYTES);
curve448_base_double_scalarmul_non_secret(pk_point,
response_scalar,
pk_point, challenge_scalar);
return c448_succeed_if(curve448_point_eq(pk_point, r_point));
} | https://github.com/openssl/openssl/blob/fbccfedf9bb0840e6c2db54b66ac511b85a3f587/crypto/ec/curve448/eddsa.c/#L277 |
d2a_code_data_44692 | 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/05eec39505ba8af6f3c1558a26c565987707cd37/crypto/bn/bn_lib.c/#L333 |
d2a_code_data_44693 | void *grow_array(void *array, int elem_size, int *size, int new_size)
{
if (new_size >= INT_MAX / elem_size) {
av_log(NULL, AV_LOG_ERROR, "Array too big.\n");
exit_program(1);
}
if (*size < new_size) {
uint8_t *tmp = av_realloc(array, new_size*elem_size);
if (!tmp) {
av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n");
exit_program(1);
}
memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
*size = new_size;
return tmp;
}
return array;
} | https://github.com/libav/libav/blob/1be8c90847300ac7889833612c99d57c58ff64b1/cmdutils.c/#L1035 |
d2a_code_data_44694 | int BN_num_bits_word(BN_ULONG l)
{
BN_ULONG x, mask;
int bits = (l != 0);
#if BN_BITS2 > 32
x = l >> 32;
mask = (0 - x) & BN_MASK2;
mask = (0 - (mask >> (BN_BITS2 - 1)));
bits += 32 & mask;
l ^= (x ^ l) & mask;
#endif
x = l >> 16;
mask = (0 - x) & BN_MASK2;
mask = (0 - (mask >> (BN_BITS2 - 1)));
bits += 16 & mask;
l ^= (x ^ l) & mask;
x = l >> 8;
mask = (0 - x) & BN_MASK2;
mask = (0 - (mask >> (BN_BITS2 - 1)));
bits += 8 & mask;
l ^= (x ^ l) & mask;
x = l >> 4;
mask = (0 - x) & BN_MASK2;
mask = (0 - (mask >> (BN_BITS2 - 1)));
bits += 4 & mask;
l ^= (x ^ l) & mask;
x = l >> 2;
mask = (0 - x) & BN_MASK2;
mask = (0 - (mask >> (BN_BITS2 - 1)));
bits += 2 & mask;
l ^= (x ^ l) & mask;
x = l >> 1;
mask = (0 - x) & BN_MASK2;
mask = (0 - (mask >> (BN_BITS2 - 1)));
bits += 1 & mask;
return bits;
} | https://github.com/openssl/openssl/blob/a766aab93a282774e63ba918d0bb1c6680a5f292/crypto/bn/bn_lib.c/#L96 |
d2a_code_data_44695 | 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_44696 | static ossl_inline void packet_forward(PACKET *pkt, size_t len)
{
pkt->curr += len;
pkt->remaining -= len;
} | https://github.com/openssl/openssl/blob/2e6b615f795e8ca8ae830a00079c4ea064eaae42/ssl/packet_locl.h/#L32 |
d2a_code_data_44697 | static void old_print_object_header(const char *name)
{
char *str, *p;
if (!strcmp(name, "tags"))
return;
str = p = av_strdup(name);
if (!str)
return;
while (*p) {
*p = av_toupper(*p);
p++;
}
avio_printf(probe_out, "[%s]\n", str);
av_freep(&str);
} | https://github.com/libav/libav/blob/8e757716c61e0563a63829e30b02d5ba2a422ad6/avprobe.c/#L354 |
d2a_code_data_44698 | void
TIFFSwabLong8(uint64* lp)
{
register unsigned char* cp = (unsigned char*) lp;
unsigned char t;
assert(sizeof(uint64)==8);
t = cp[7]; cp[7] = cp[0]; cp[0] = t;
t = cp[6]; cp[6] = cp[1]; cp[1] = t;
t = cp[5]; cp[5] = cp[2]; cp[2] = t;
t = cp[4]; cp[4] = cp[3]; cp[3] = t;
} | https://gitlab.com/libtiff/libtiff/blob/771a4ea0a98c7a218c9f3add9a05e08d29625758/libtiff/tif_swab.c/#L64 |
d2a_code_data_44699 | int ASN1_TIME_set_string_X509(ASN1_TIME *s, const char *str)
{
ASN1_TIME t;
struct tm tm;
int rv = 0;
t.length = strlen(str);
t.data = (unsigned char *)str;
t.flags = ASN1_STRING_FLAG_X509_TIME;
t.type = V_ASN1_UTCTIME;
if (!ASN1_TIME_check(&t)) {
t.type = V_ASN1_GENERALIZEDTIME;
if (!ASN1_TIME_check(&t))
goto out;
}
if (s != NULL && t.type == V_ASN1_GENERALIZEDTIME) {
if (!asn1_time_to_tm(&tm, &t))
goto out;
if (is_utc(tm.tm_year)) {
t.length -= 2;
t.data = OPENSSL_zalloc(t.length + 1);
if (t.data == NULL)
goto out;
memcpy(t.data, str + 2, t.length);
t.type = V_ASN1_UTCTIME;
}
}
if (s == NULL || ASN1_STRING_copy((ASN1_STRING *)s, (ASN1_STRING *)&t))
rv = 1;
if (t.data != (unsigned char *)str)
OPENSSL_free(t.data);
out:
return rv;
} | https://github.com/openssl/openssl/blob/bcf082d130a413a728a382bd6e6bfdbf2cedba45/crypto/asn1/a_time.c/#L419 |
d2a_code_data_44700 | c448_error_t curve448_scalar_decode(
curve448_scalar_t s,
const unsigned char ser[C448_SCALAR_BYTES])
{
unsigned int i;
c448_dsword_t accum = 0;
scalar_decode_short(s, ser, C448_SCALAR_BYTES);
for (i = 0; i < C448_SCALAR_LIMBS; i++)
accum = (accum + s->limb[i] - sc_p->limb[i]) >> WBITS;
curve448_scalar_mul(s, s, curve448_scalar_one);
return c448_succeed_if(~word_is_zero((uint32_t)accum));
} | https://github.com/openssl/openssl/blob/0cdcdacc337005e08a906b2e07d4e44e3ee48138/crypto/ec/curve448/scalar.c/#L166 |
d2a_code_data_44701 | static int fill_default_ref_list(H264Context *h){
MpegEncContext * const s = &h->s;
int i;
int smallest_poc_greater_than_current = -1;
int structure_sel;
Picture sorted_short_ref[32];
Picture field_entry_list[2][32];
Picture *frame_list[2];
if (FIELD_PICTURE) {
structure_sel = PICT_FRAME;
frame_list[0] = field_entry_list[0];
frame_list[1] = field_entry_list[1];
} else {
structure_sel = 0;
frame_list[0] = h->default_ref_list[0];
frame_list[1] = h->default_ref_list[1];
}
if(h->slice_type==FF_B_TYPE){
int list;
int len[2];
int short_len[2];
int out_i;
int limit= INT_MIN;
for(out_i=0; out_i<h->short_ref_count; out_i++){
int best_i=INT_MIN;
int best_poc=INT_MAX;
for(i=0; i<h->short_ref_count; i++){
const int poc= h->short_ref[i]->poc;
if(poc > limit && poc < best_poc){
best_poc= poc;
best_i= i;
}
}
assert(best_i != INT_MIN);
limit= best_poc;
sorted_short_ref[out_i]= *h->short_ref[best_i];
tprintf(h->s.avctx, "sorted poc: %d->%d poc:%d fn:%d\n", best_i, out_i, sorted_short_ref[out_i].poc, sorted_short_ref[out_i].frame_num);
if (-1 == smallest_poc_greater_than_current) {
if (h->short_ref[best_i]->poc >= s->current_picture_ptr->poc) {
smallest_poc_greater_than_current = out_i;
}
}
}
tprintf(h->s.avctx, "current poc: %d, smallest_poc_greater_than_current: %d\n", s->current_picture_ptr->poc, smallest_poc_greater_than_current);
for(list=0; list<2; list++){
int index = 0;
int j= -99;
int step= list ? -1 : 1;
for(i=0; i<h->short_ref_count && index < h->ref_count[list]; i++, j+=step) {
int sel;
while(j<0 || j>= h->short_ref_count){
if(j != -99 && step == (list ? -1 : 1))
return -1;
step = -step;
j= smallest_poc_greater_than_current + (step>>1);
}
sel = sorted_short_ref[j].reference | structure_sel;
if(sel != PICT_FRAME) continue;
frame_list[list][index ]= sorted_short_ref[j];
frame_list[list][index++].pic_id= sorted_short_ref[j].frame_num;
}
short_len[list] = index;
for(i = 0; i < 16 && index < h->ref_count[ list ]; i++){
int sel;
if(h->long_ref[i] == NULL) continue;
sel = h->long_ref[i]->reference | structure_sel;
if(sel != PICT_FRAME) continue;
frame_list[ list ][index ]= *h->long_ref[i];
frame_list[ list ][index++].pic_id= i;
}
len[list] = index;
}
for(list=0; list<2; list++){
if (FIELD_PICTURE)
len[list] = split_field_ref_list(h->default_ref_list[list],
h->ref_count[list],
frame_list[list],
len[list],
s->picture_structure,
short_len[list]);
if(list && len[0] > 1 && len[0] == len[1])
for(i=0; h->default_ref_list[0][i].data[0] == h->default_ref_list[1][i].data[0]; i++)
if(i == len[0]){
FFSWAP(Picture, h->default_ref_list[1][0], h->default_ref_list[1][1]);
break;
}
if(len[list] < h->ref_count[ list ])
memset(&h->default_ref_list[list][len[list]], 0, sizeof(Picture)*(h->ref_count[ list ] - len[list]));
}
}else{
int index=0;
int short_len;
for(i=0; i<h->short_ref_count; i++){
int sel;
sel = h->short_ref[i]->reference | structure_sel;
if(sel != PICT_FRAME) continue;
frame_list[0][index ]= *h->short_ref[i];
frame_list[0][index++].pic_id= h->short_ref[i]->frame_num;
}
short_len = index;
for(i = 0; i < 16; i++){
int sel;
if(h->long_ref[i] == NULL) continue;
sel = h->long_ref[i]->reference | structure_sel;
if(sel != PICT_FRAME) continue;
frame_list[0][index ]= *h->long_ref[i];
frame_list[0][index++].pic_id= i;
}
if (FIELD_PICTURE)
index = split_field_ref_list(h->default_ref_list[0],
h->ref_count[0], frame_list[0],
index, s->picture_structure,
short_len);
if(index < h->ref_count[0])
memset(&h->default_ref_list[0][index], 0, sizeof(Picture)*(h->ref_count[0] - index));
}
#ifdef TRACE
for (i=0; i<h->ref_count[0]; i++) {
tprintf(h->s.avctx, "List0: %s fn:%d 0x%p\n", (h->default_ref_list[0][i].long_ref ? "LT" : "ST"), h->default_ref_list[0][i].pic_id, h->default_ref_list[0][i].data[0]);
}
if(h->slice_type==FF_B_TYPE){
for (i=0; i<h->ref_count[1]; i++) {
tprintf(h->s.avctx, "List1: %s fn:%d 0x%p\n", (h->default_ref_list[1][i].long_ref ? "LT" : "ST"), h->default_ref_list[1][i].pic_id, h->default_ref_list[1][i].data[0]);
}
}
#endif
return 0;
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/h264.c/#L2945 |
d2a_code_data_44702 | 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/b48d4397b8ee4256f0b0a115eb99f27ae89995e0/crypto/bn/bn_sqr.c/#L120 |
d2a_code_data_44703 | static int opt_vstats(void *optctx, 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(NULL, opt, filename);
} | https://github.com/libav/libav/blob/e984f47873258b600fd88423f40e3cdaad179190/avconv_opt.c/#L1749 |
d2a_code_data_44704 | 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/41145c35bfee8f2b0822288fcb23a807d06d8e89/crypto/lhash/lhash.c/#L146 |
d2a_code_data_44705 | static int tls_construct_cke_rsa(SSL *s, WPACKET *pkt)
{
#ifndef OPENSSL_NO_RSA
unsigned char *encdata = NULL;
EVP_PKEY *pkey = NULL;
EVP_PKEY_CTX *pctx = NULL;
size_t enclen;
unsigned char *pms = NULL;
size_t pmslen = 0;
if (s->session->peer == NULL) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_RSA,
ERR_R_INTERNAL_ERROR);
return 0;
}
pkey = X509_get0_pubkey(s->session->peer);
if (EVP_PKEY_get0_RSA(pkey) == NULL) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_RSA,
ERR_R_INTERNAL_ERROR);
return 0;
}
pmslen = SSL_MAX_MASTER_KEY_LENGTH;
pms = OPENSSL_malloc(pmslen);
if (pms == NULL) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_RSA,
ERR_R_MALLOC_FAILURE);
return 0;
}
pms[0] = s->client_version >> 8;
pms[1] = s->client_version & 0xff;
if (ssl_randbytes(s, pms + 2, (int)(pmslen - 2)) <= 0) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_RSA,
ERR_R_MALLOC_FAILURE);
goto err;
}
if (s->version > SSL3_VERSION && !WPACKET_start_sub_packet_u16(pkt)) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_RSA,
ERR_R_INTERNAL_ERROR);
goto err;
}
pctx = EVP_PKEY_CTX_new(pkey, NULL);
if (pctx == NULL || EVP_PKEY_encrypt_init(pctx) <= 0
|| EVP_PKEY_encrypt(pctx, NULL, &enclen, pms, pmslen) <= 0) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_RSA,
ERR_R_EVP_LIB);
goto err;
}
if (!WPACKET_allocate_bytes(pkt, enclen, &encdata)
|| EVP_PKEY_encrypt(pctx, encdata, &enclen, pms, pmslen) <= 0) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_RSA,
SSL_R_BAD_RSA_ENCRYPT);
goto err;
}
EVP_PKEY_CTX_free(pctx);
pctx = NULL;
if (s->version > SSL3_VERSION && !WPACKET_close(pkt)) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_RSA,
ERR_R_INTERNAL_ERROR);
goto err;
}
if (!ssl_log_rsa_client_key_exchange(s, encdata, enclen, pms, pmslen)) {
goto err;
}
s->s3->tmp.pms = pms;
s->s3->tmp.pmslen = pmslen;
return 1;
err:
OPENSSL_clear_free(pms, pmslen);
EVP_PKEY_CTX_free(pctx);
return 0;
#else
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_RSA,
ERR_R_INTERNAL_ERROR);
return 0;
#endif
} | https://github.com/openssl/openssl/blob/fce78bd4ede74d4fa7bd1c8195d8f7bc9403bd4c/ssl/statem/statem_clnt.c/#L2869 |
d2a_code_data_44706 | ASN1_OCTET_STRING *SXNET_get_id_ulong(SXNET *sx, unsigned long lzone)
{
ASN1_INTEGER *izone;
ASN1_OCTET_STRING *oct;
if ((izone = ASN1_INTEGER_new()) == NULL
|| !ASN1_INTEGER_set(izone, lzone)) {
X509V3err(X509V3_F_SXNET_GET_ID_ULONG, ERR_R_MALLOC_FAILURE);
ASN1_INTEGER_free(izone);
return NULL;
}
oct = SXNET_get_id_INTEGER(sx, izone);
ASN1_INTEGER_free(izone);
return oct;
} | https://github.com/openssl/openssl/blob/ec04e866343d40a1e3e8e5db79557e279a2dd0d8/crypto/x509v3/v3_sxnet.c/#L262 |
d2a_code_data_44707 | int tls_construct_client_verify(SSL *s)
{
unsigned char *p;
EVP_PKEY *pkey;
const EVP_MD *md = s->s3->tmp.md[s->cert->key - s->cert->pkeys];
EVP_MD_CTX *mctx;
unsigned u = 0;
unsigned long n = 0;
long hdatalen = 0;
void *hdata;
mctx = EVP_MD_CTX_new();
if (mctx == NULL) {
SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_VERIFY, ERR_R_MALLOC_FAILURE);
goto err;
}
p = ssl_handshake_start(s);
pkey = s->cert->key->privatekey;
hdatalen = BIO_get_mem_data(s->s3->handshake_buffer, &hdata);
if (hdatalen <= 0) {
SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_VERIFY, ERR_R_INTERNAL_ERROR);
goto err;
}
if (SSL_USE_SIGALGS(s)) {
if (!tls12_get_sigandhash(p, pkey, md)) {
SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_VERIFY, ERR_R_INTERNAL_ERROR);
goto err;
}
p += 2;
n = 2;
}
#ifdef SSL_DEBUG
fprintf(stderr, "Using client alg %s\n", EVP_MD_name(md));
#endif
if (!EVP_SignInit_ex(mctx, md, NULL)
|| !EVP_SignUpdate(mctx, hdata, hdatalen)
|| (s->version == SSL3_VERSION
&& !EVP_MD_CTX_ctrl(mctx, EVP_CTRL_SSL3_MASTER_SECRET,
s->session->master_key_length,
s->session->master_key))
|| !EVP_SignFinal(mctx, p + 2, &u, pkey)) {
SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_VERIFY, ERR_R_EVP_LIB);
goto err;
}
#ifndef OPENSSL_NO_GOST
{
int pktype = EVP_PKEY_id(pkey);
if (pktype == NID_id_GostR3410_2001
|| pktype == NID_id_GostR3410_2012_256
|| pktype == NID_id_GostR3410_2012_512)
BUF_reverse(p + 2, NULL, u);
}
#endif
s2n(u, p);
n += u + 2;
if (!ssl3_digest_cached_records(s, 0))
goto err;
if (!ssl_set_handshake_header(s, SSL3_MT_CERTIFICATE_VERIFY, n)) {
SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_VERIFY, ERR_R_INTERNAL_ERROR);
goto err;
}
EVP_MD_CTX_free(mctx);
return 1;
err:
EVP_MD_CTX_free(mctx);
return 0;
} | https://github.com/openssl/openssl/blob/70c22888c1648fe8652e77107f3c74bf2212de36/ssl/statem/statem_clnt.c/#L2675 |
d2a_code_data_44708 | 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_44709 | static OutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
{
int idx = oc->nb_streams - 1;
OutputStream *ost;
output_streams_for_file[file_idx] =
grow_array(output_streams_for_file[file_idx],
sizeof(*output_streams_for_file[file_idx]),
&nb_output_streams_for_file[file_idx],
oc->nb_streams);
ost = output_streams_for_file[file_idx][idx] =
av_mallocz(sizeof(OutputStream));
if (!ost) {
fprintf(stderr, "Could not alloc output stream\n");
ffmpeg_exit(1);
}
ost->file_index = file_idx;
ost->index = idx;
ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
return ost;
} | https://github.com/libav/libav/blob/bf2cba453244a74331238a472fe0e309f116f4d9/ffmpeg.c/#L645 |
d2a_code_data_44710 | SRP_user_pwd *SRP_VBASE_get_by_user(SRP_VBASE *vb, char *username)
{
int i;
SRP_user_pwd *user;
unsigned char digv[SHA_DIGEST_LENGTH];
unsigned char digs[SHA_DIGEST_LENGTH];
EVP_MD_CTX *ctxt = NULL;
if (vb == NULL)
return NULL;
for (i = 0; i < sk_SRP_user_pwd_num(vb->users_pwd); i++) {
user = sk_SRP_user_pwd_value(vb->users_pwd, i);
if (strcmp(user->id, username) == 0)
return user;
}
if ((vb->seed_key == NULL) ||
(vb->default_g == NULL) || (vb->default_N == NULL))
return NULL;
if ((user = SRP_user_pwd_new()) == NULL)
return NULL;
SRP_user_pwd_set_gN(user, vb->default_g, vb->default_N);
if (!SRP_user_pwd_set_ids(user, username, NULL))
goto err;
if (RAND_bytes(digv, SHA_DIGEST_LENGTH) <= 0)
goto err;
ctxt = EVP_MD_CTX_new();
EVP_DigestInit_ex(ctxt, EVP_sha1(), NULL);
EVP_DigestUpdate(ctxt, vb->seed_key, strlen(vb->seed_key));
EVP_DigestUpdate(ctxt, username, strlen(username));
EVP_DigestFinal_ex(ctxt, digs, NULL);
EVP_MD_CTX_free(ctxt);
ctxt = NULL;
if (SRP_user_pwd_set_sv_BN(user,
BN_bin2bn(digs, SHA_DIGEST_LENGTH, NULL),
BN_bin2bn(digv, SHA_DIGEST_LENGTH, NULL)))
return user;
err:
EVP_MD_CTX_free(ctxt);
SRP_user_pwd_free(user);
return NULL;
} | https://github.com/openssl/openssl/blob/ec04e866343d40a1e3e8e5db79557e279a2dd0d8/crypto/srp/srp_vfy.c/#L516 |
d2a_code_data_44711 | AVFilterBufferRef *avfilter_get_video_buffer(AVFilterLink *link, int perms, int w, int h)
{
AVFilterBufferRef *ret = NULL;
av_unused char buf[16];
FF_DPRINTF_START(NULL, get_video_buffer); ff_dlog_link(NULL, link, 0);
av_dlog(NULL, " perms:%s w:%d h:%d\n", ff_get_ref_perms_string(buf, sizeof(buf), perms), w, h);
if (link->dstpad->get_video_buffer)
ret = link->dstpad->get_video_buffer(link, perms, w, h);
if (!ret)
ret = avfilter_default_get_video_buffer(link, perms, w, h);
if (ret)
ret->type = AVMEDIA_TYPE_VIDEO;
FF_DPRINTF_START(NULL, get_video_buffer); ff_dlog_link(NULL, link, 0); av_dlog(NULL, " returning "); ff_dlog_ref(NULL, ret, 1);
return ret;
} | https://github.com/libav/libav/blob/1c9e340d35351858907f11c45b2691db708f3903/libavfilter/avfilter.c/#L306 |
d2a_code_data_44712 | static ossl_inline void packet_forward(PACKET *pkt, size_t len)
{
pkt->curr += len;
pkt->remaining -= len;
} | https://github.com/openssl/openssl/blob/d6c2587967f93f2f9c226bda9139ae427698f20f/ssl/packet_locl.h/#L84 |
d2a_code_data_44713 | static int ctr_BCC_update(RAND_DRBG_CTR *ctr,
const unsigned char *in, size_t inlen)
{
if (in == NULL || inlen == 0)
return 1;
if (ctr->bltmp_pos) {
size_t left = 16 - ctr->bltmp_pos;
if (inlen >= left) {
memcpy(ctr->bltmp + ctr->bltmp_pos, in, left);
if (!ctr_BCC_blocks(ctr, ctr->bltmp))
return 0;
ctr->bltmp_pos = 0;
inlen -= left;
in += left;
}
}
for (; inlen >= 16; in += 16, inlen -= 16) {
if (!ctr_BCC_blocks(ctr, in))
return 0;
}
if (inlen > 0) {
memcpy(ctr->bltmp + ctr->bltmp_pos, in, inlen);
ctr->bltmp_pos += inlen;
}
return 1;
} | https://github.com/openssl/openssl/blob/e613b1eff40f21cd99240f9884cd3396b0ab50f1/crypto/rand/drbg_ctr.c/#L136 |
d2a_code_data_44714 | 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/91056e72693b4ee8cb5339d9091871ffc3b6f776/apps/ts.c/#L976 |
d2a_code_data_44715 | static void doall_util_fn(OPENSSL_LHASH *lh, int use_arg,
OPENSSL_LH_DOALL_FUNC func,
OPENSSL_LH_DOALL_FUNCARG func_arg, void *arg)
{
int i;
OPENSSL_LH_NODE *a, *n;
if (lh == NULL)
return;
for (i = lh->num_nodes - 1; i >= 0; i--) {
a = lh->b[i];
while (a != NULL) {
n = a->next;
if (use_arg)
func_arg(a->data, arg);
else
func(a->data);
a = n;
}
}
} | https://github.com/openssl/openssl/blob/2a7de0fd5d9baf946ef4d2c51096b04dd47a8143/crypto/lhash/lhash.c/#L164 |
d2a_code_data_44716 | static void doall_util_fn(OPENSSL_LHASH *lh, int use_arg,
OPENSSL_LH_DOALL_FUNC func,
OPENSSL_LH_DOALL_FUNCARG func_arg, void *arg)
{
int i;
OPENSSL_LH_NODE *a, *n;
if (lh == NULL)
return;
for (i = lh->num_nodes - 1; i >= 0; i--) {
a = lh->b[i];
while (a != NULL) {
n = a->next;
if (use_arg)
func_arg(a->data, arg);
else
func(a->data);
a = n;
}
}
} | https://github.com/openssl/openssl/blob/9f5671c7e9f30dfa53b1a2b553f234c2761ceb66/crypto/lhash/lhash.c/#L180 |
d2a_code_data_44717 | BN_MONT_CTX *BN_MONT_CTX_set_locked(BN_MONT_CTX **pmont, int lock,
const BIGNUM *mod, BN_CTX *ctx)
{
BN_MONT_CTX *ret;
CRYPTO_r_lock(lock);
ret = *pmont;
CRYPTO_r_unlock(lock);
if (ret)
return ret;
ret = BN_MONT_CTX_new();
if (ret == NULL)
return NULL;
if (!BN_MONT_CTX_set(ret, mod, ctx)) {
BN_MONT_CTX_free(ret);
return NULL;
}
CRYPTO_w_lock(lock);
if (*pmont) {
BN_MONT_CTX_free(ret);
ret = *pmont;
} else
*pmont = ret;
CRYPTO_w_unlock(lock);
return ret;
} | https://github.com/openssl/openssl/blob/ec04e866343d40a1e3e8e5db79557e279a2dd0d8/crypto/bn/bn_mont.c/#L523 |
d2a_code_data_44718 | int
ff_rm_retrieve_cache (AVFormatContext *s, AVIOContext *pb,
AVStream *st, RMStream *ast, AVPacket *pkt)
{
RMDemuxContext *rm = s->priv_data;
assert (rm->audio_pkt_cnt > 0);
if (ast->deint_id == DEINT_ID_VBRF ||
ast->deint_id == DEINT_ID_VBRS)
av_get_packet(pb, pkt, ast->sub_packet_lengths[ast->sub_packet_cnt - rm->audio_pkt_cnt]);
else {
av_new_packet(pkt, st->codec->block_align);
memcpy(pkt->data, ast->pkt.data + st->codec->block_align *
(ast->sub_packet_h * ast->audio_framesize / st->codec->block_align - rm->audio_pkt_cnt),
st->codec->block_align);
}
rm->audio_pkt_cnt--;
if ((pkt->pts = ast->audiotimestamp) != AV_NOPTS_VALUE) {
ast->audiotimestamp = AV_NOPTS_VALUE;
pkt->flags = AV_PKT_FLAG_KEY;
} else
pkt->flags = 0;
pkt->stream_index = st->index;
return rm->audio_pkt_cnt;
} | https://github.com/libav/libav/blob/f06068bbd6ed1f831dee0b0ee46e00ebe42ec1e2/libavformat/rmdec.c/#L826 |
d2a_code_data_44719 | 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_44720 | 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_44721 | int ossl_init_thread_start(uint64_t opts)
{
struct thread_local_inits_st *locals = ossl_init_get_thread_local(1);
if (locals == NULL)
return 0;
if (opts & OPENSSL_INIT_THREAD_ASYNC) {
#ifdef OPENSSL_INIT_DEBUG
fprintf(stderr, "OPENSSL_INIT: ossl_init_thread_start: "
"marking thread for async\n");
#endif
locals->async = 1;
}
if (opts & OPENSSL_INIT_THREAD_ERR_STATE) {
#ifdef OPENSSL_INIT_DEBUG
fprintf(stderr, "OPENSSL_INIT: ossl_init_thread_start: "
"marking thread for err_state\n");
#endif
locals->err_state = 1;
}
return 1;
} | https://github.com/openssl/openssl/blob/5968d11a7a28103610c054c6a57c852bbe0f3b51/crypto/init.c/#L388 |
d2a_code_data_44722 | 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_44723 | 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/e128f891de71bbdba8391355af8d6d47d20b1969/crypto/lhash/lhash.c/#L123 |
d2a_code_data_44724 | 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/c0f9e23c6b8d1076796987d5a84557d410682d85/ssl/packet.c/#L25 |
d2a_code_data_44725 | int is_partially_overlapping(const void *ptr1, const void *ptr2, int len)
{
PTRDIFF_T diff = (PTRDIFF_T)ptr1-(PTRDIFF_T)ptr2;
int overlapped = (len > 0) & (diff != 0) & ((diff < (PTRDIFF_T)len) |
(diff > (0 - (PTRDIFF_T)len)));
return overlapped;
} | https://github.com/openssl/openssl/blob/e613b1eff40f21cd99240f9884cd3396b0ab50f1/crypto/evp/evp_enc.c/#L292 |
d2a_code_data_44726 | static void copy_parameter_set(void **to, void **from, int count, int size)
{
int i;
for (i = 0; i < count; i++) {
if (to[i] && !from[i])
av_freep(&to[i]);
else if (from[i] && !to[i])
to[i] = av_malloc(size);
if (from[i])
memcpy(to[i], from[i], size);
}
} | https://github.com/libav/libav/blob/2852740e23f91d6775714d7cc29b9a73e1111ce0/libavcodec/h264.c/#L1524 |
d2a_code_data_44727 | static void init_tone_level_dequantization (QDM2Context *q, GetBitContext *gb, int length)
{
int sb, j, k, n, ch;
for (ch = 0; ch < q->nb_channels; ch++) {
init_quantized_coeffs_elem0(q->quantized_coeffs[ch][0], gb, length);
if (BITS_LEFT(length,gb) < 16) {
memset(q->quantized_coeffs[ch][0], 0, 8);
break;
}
}
n = q->sub_sampling + 1;
for (sb = 0; sb < n; sb++)
for (ch = 0; ch < q->nb_channels; ch++)
for (j = 0; j < 8; j++) {
if (BITS_LEFT(length,gb) < 1)
break;
if (get_bits1(gb)) {
for (k=0; k < 8; k++) {
if (BITS_LEFT(length,gb) < 16)
break;
q->tone_level_idx_hi1[ch][sb][j][k] = qdm2_get_vlc(gb, &vlc_tab_tone_level_idx_hi1, 0, 2);
}
} else {
for (k=0; k < 8; k++)
q->tone_level_idx_hi1[ch][sb][j][k] = 0;
}
}
n = QDM2_SB_USED(q->sub_sampling) - 4;
for (sb = 0; sb < n; sb++)
for (ch = 0; ch < q->nb_channels; ch++) {
if (BITS_LEFT(length,gb) < 16)
break;
q->tone_level_idx_hi2[ch][sb] = qdm2_get_vlc(gb, &vlc_tab_tone_level_idx_hi2, 0, 2);
if (sb > 19)
q->tone_level_idx_hi2[ch][sb] -= 16;
else
for (j = 0; j < 8; j++)
q->tone_level_idx_mid[ch][sb][j] = -16;
}
n = QDM2_SB_USED(q->sub_sampling) - 5;
for (sb = 0; sb < n; sb++)
for (ch = 0; ch < q->nb_channels; ch++)
for (j = 0; j < 8; j++) {
if (BITS_LEFT(length,gb) < 16)
break;
q->tone_level_idx_mid[ch][sb][j] = qdm2_get_vlc(gb, &vlc_tab_tone_level_idx_mid, 0, 2) - 32;
}
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/qdm2.c/#L1026 |
d2a_code_data_44728 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | https://github.com/openssl/openssl/blob/e113c9c59dcb419dd00525cec431edb854a6c897/crypto/bn/bn_ctx.c/#L328 |
d2a_code_data_44729 | static int internal_verify(X509_STORE_CTX *ctx)
{
int ok=0,n;
X509 *xs,*xi;
EVP_PKEY *pkey=NULL;
int (*cb)(int xok,X509_STORE_CTX *xctx);
cb=ctx->verify_cb;
n=sk_X509_num(ctx->chain);
ctx->error_depth=n-1;
n--;
xi=sk_X509_value(ctx->chain,n);
if (ctx->check_issued(ctx, xi, xi))
xs=xi;
else
{
if (ctx->param->flags & X509_V_FLAG_PARTIAL_CHAIN)
{
xs = xi;
goto check_cert;
}
if (n <= 0)
{
ctx->error=X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE;
ctx->current_cert=xi;
ok=cb(0,ctx);
goto end;
}
else
{
n--;
ctx->error_depth=n;
xs=sk_X509_value(ctx->chain,n);
}
}
while (n >= 0)
{
ctx->error_depth=n;
if (!xs->valid && (xs != xi || (ctx->param->flags & X509_V_FLAG_CHECK_SS_SIGNATURE)))
{
if ((pkey=X509_get_pubkey(xi)) == NULL)
{
ctx->error=X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY;
ctx->current_cert=xi;
ok=(*cb)(0,ctx);
if (!ok) goto end;
}
else if (X509_verify(xs,pkey) <= 0)
{
ctx->error=X509_V_ERR_CERT_SIGNATURE_FAILURE;
ctx->current_cert=xs;
ok=(*cb)(0,ctx);
if (!ok)
{
EVP_PKEY_free(pkey);
goto end;
}
}
EVP_PKEY_free(pkey);
pkey=NULL;
}
xs->valid = 1;
check_cert:
ok = x509_check_cert_time(ctx, xs, 0);
if (!ok)
goto end;
ctx->current_issuer=xi;
ctx->current_cert=xs;
ok=(*cb)(1,ctx);
if (!ok) goto end;
n--;
if (n >= 0)
{
xi=xs;
xs=sk_X509_value(ctx->chain,n);
}
}
ok=1;
end:
return ok;
} | https://github.com/openssl/openssl/blob/750487899ad2b794078ed998b513a4a14f60f2cc/crypto/x509/x509_vfy.c/#L1819 |
d2a_code_data_44730 | 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/0db46a7dd79cac420c08d68fc782d561e7927af1/crypto/lhash/lhash.c/#L240 |
d2a_code_data_44731 | static int pcm_decode_frame(AVCodecContext *avctx,
void *data, int *data_size,
const uint8_t *buf, int buf_size)
{
PCMDecode *s = avctx->priv_data;
int c, n;
short *samples;
const uint8_t *src, *src2[MAX_CHANNELS];
samples = data;
src = buf;
n= av_get_bits_per_sample(avctx->codec_id)/8;
if(n && buf_size % n){
av_log(avctx, AV_LOG_ERROR, "invalid PCM packet\n");
return -1;
}
if(avctx->channels <= 0 || avctx->channels > MAX_CHANNELS){
av_log(avctx, AV_LOG_ERROR, "PCM channels out of bounds\n");
return -1;
}
buf_size= FFMIN(buf_size, *data_size/2);
*data_size=0;
n = buf_size/avctx->channels;
for(c=0;c<avctx->channels;c++)
src2[c] = &src[c*n];
switch(avctx->codec->id) {
case CODEC_ID_PCM_S32LE:
decode_to16(4, 1, 0, &src, &samples, buf_size);
break;
case CODEC_ID_PCM_S32BE:
decode_to16(4, 0, 0, &src, &samples, buf_size);
break;
case CODEC_ID_PCM_U32LE:
decode_to16(4, 1, 1, &src, &samples, buf_size);
break;
case CODEC_ID_PCM_U32BE:
decode_to16(4, 0, 1, &src, &samples, buf_size);
break;
case CODEC_ID_PCM_S24LE:
decode_to16(3, 1, 0, &src, &samples, buf_size);
break;
case CODEC_ID_PCM_S24BE:
decode_to16(3, 0, 0, &src, &samples, buf_size);
break;
case CODEC_ID_PCM_U24LE:
decode_to16(3, 1, 1, &src, &samples, buf_size);
break;
case CODEC_ID_PCM_U24BE:
decode_to16(3, 0, 1, &src, &samples, buf_size);
break;
case CODEC_ID_PCM_S24DAUD:
n = buf_size / 3;
for(;n>0;n--) {
uint32_t v = bytestream_get_be24(&src);
v >>= 4;
*samples++ = ff_reverse[(v >> 8) & 0xff] +
(ff_reverse[v & 0xff] << 8);
}
break;
case CODEC_ID_PCM_S16LE:
n = buf_size >> 1;
for(;n>0;n--) {
*samples++ = bytestream_get_le16(&src);
}
break;
case CODEC_ID_PCM_S16LE_PLANAR:
for(n>>=1;n>0;n--)
for(c=0;c<avctx->channels;c++)
*samples++ = bytestream_get_le16(&src2[c]);
src = src2[avctx->channels-1];
break;
case CODEC_ID_PCM_S16BE:
n = buf_size >> 1;
for(;n>0;n--) {
*samples++ = bytestream_get_be16(&src);
}
break;
case CODEC_ID_PCM_U16LE:
n = buf_size >> 1;
for(;n>0;n--) {
*samples++ = bytestream_get_le16(&src) - 0x8000;
}
break;
case CODEC_ID_PCM_U16BE:
n = buf_size >> 1;
for(;n>0;n--) {
*samples++ = bytestream_get_be16(&src) - 0x8000;
}
break;
case CODEC_ID_PCM_S8:
n = buf_size;
for(;n>0;n--) {
*samples++ = *src++ << 8;
}
break;
case CODEC_ID_PCM_U8:
n = buf_size;
for(;n>0;n--) {
*samples++ = ((int)*src++ - 128) << 8;
}
break;
case CODEC_ID_PCM_ZORK:
n = buf_size;
for(;n>0;n--) {
int x= *src++;
if(x&128) x-= 128;
else x = -x;
*samples++ = x << 8;
}
break;
case CODEC_ID_PCM_ALAW:
case CODEC_ID_PCM_MULAW:
n = buf_size;
for(;n>0;n--) {
*samples++ = s->table[*src++];
}
break;
default:
return -1;
}
*data_size = (uint8_t *)samples - (uint8_t *)data;
return src - buf;
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/pcm.c/#L447 |
d2a_code_data_44732 | ngx_int_t
ngx_http_arg(ngx_http_request_t *r, u_char *name, size_t len, ngx_str_t *value)
{
u_char *p, *last;
if (r->args.len == 0) {
return NGX_DECLINED;
}
p = r->args.data;
last = p + r->args.len;
for ( ; p < last; p++) {
p = ngx_strlcasestrn(p, last - 1, name, len - 1);
if (p == NULL) {
return NGX_DECLINED;
}
if ((p == r->args.data || *(p - 1) == '&') && *(p + len) == '=') {
value->data = p + len + 1;
p = ngx_strlchr(p, last, '&');
if (p == NULL) {
p = r->args.data + r->args.len;
}
value->len = p - value->data;
return NGX_OK;
}
}
return NGX_DECLINED;
} | https://github.com/nginx/nginx/blob/e4ecddfdb0d2ffc872658e36028971ad9a873726/src/http/ngx_http_parse.c/#L1502 |
d2a_code_data_44733 | static void clone_slice(H264Context *dst, H264Context *src)
{
memcpy(dst->block_offset, src->block_offset, sizeof(dst->block_offset));
dst->s.current_picture_ptr = src->s.current_picture_ptr;
dst->s.current_picture = src->s.current_picture;
dst->s.linesize = src->s.linesize;
dst->s.uvlinesize = src->s.uvlinesize;
dst->s.first_field = src->s.first_field;
dst->prev_poc_msb = src->prev_poc_msb;
dst->prev_poc_lsb = src->prev_poc_lsb;
dst->prev_frame_num_offset = src->prev_frame_num_offset;
dst->prev_frame_num = src->prev_frame_num;
dst->short_ref_count = src->short_ref_count;
memcpy(dst->short_ref, src->short_ref, sizeof(dst->short_ref));
memcpy(dst->long_ref, src->long_ref, sizeof(dst->long_ref));
memcpy(dst->default_ref_list, src->default_ref_list, sizeof(dst->default_ref_list));
memcpy(dst->ref_list, src->ref_list, sizeof(dst->ref_list));
memcpy(dst->dequant4_coeff, src->dequant4_coeff, sizeof(src->dequant4_coeff));
memcpy(dst->dequant8_coeff, src->dequant8_coeff, sizeof(src->dequant8_coeff));
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/h264.c/#L3845 |
d2a_code_data_44734 | static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
{
AVIContext *avi = s->priv_data;
ByteIOContext *pb = s->pb;
uint32_t tag, tag1, handler;
int codec_type, stream_index, frame_period, bit_rate;
unsigned int size, nb_frames;
int i;
AVStream *st;
AVIStream *ast = NULL;
char str_track[4];
int avih_width=0, avih_height=0;
int amv_file_format=0;
avi->stream_index= -1;
if (get_riff(avi, pb) < 0)
return -1;
avi->fsize = url_fsize(pb);
if(avi->fsize<=0)
avi->fsize= avi->riff_end;
stream_index = -1;
codec_type = -1;
frame_period = 0;
for(;;) {
if (url_feof(pb))
goto fail;
tag = get_le32(pb);
size = get_le32(pb);
#ifdef DEBUG
print_tag("tag", tag, size);
#endif
switch(tag) {
case MKTAG('L', 'I', 'S', 'T'):
tag1 = get_le32(pb);
#ifdef DEBUG
print_tag("list", tag1, 0);
#endif
if (tag1 == MKTAG('m', 'o', 'v', 'i')) {
avi->movi_list = url_ftell(pb) - 4;
if(size) avi->movi_end = avi->movi_list + size + (size & 1);
else avi->movi_end = url_fsize(pb);
#ifdef DEBUG
printf("movi end=%"PRIx64"\n", avi->movi_end);
#endif
goto end_of_header;
}
break;
case MKTAG('d', 'm', 'l', 'h'):
avi->is_odml = 1;
url_fskip(pb, size + (size & 1));
break;
case MKTAG('a', 'm', 'v', 'h'):
amv_file_format=1;
case MKTAG('a', 'v', 'i', 'h'):
frame_period = get_le32(pb);
bit_rate = get_le32(pb) * 8;
get_le32(pb);
avi->non_interleaved |= get_le32(pb) & AVIF_MUSTUSEINDEX;
url_fskip(pb, 2 * 4);
get_le32(pb);
get_le32(pb);
avih_width=get_le32(pb);
avih_height=get_le32(pb);
url_fskip(pb, size - 10 * 4);
break;
case MKTAG('s', 't', 'r', 'h'):
tag1 = get_le32(pb);
handler = get_le32(pb);
if(tag1 == MKTAG('p', 'a', 'd', 's')){
url_fskip(pb, size - 8);
break;
}else{
stream_index++;
st = av_new_stream(s, stream_index);
if (!st)
goto fail;
ast = av_mallocz(sizeof(AVIStream));
if (!ast)
goto fail;
st->priv_data = ast;
}
if(amv_file_format)
tag1 = stream_index ? MKTAG('a','u','d','s') : MKTAG('v','i','d','s');
#ifdef DEBUG
print_tag("strh", tag1, -1);
#endif
if(tag1 == MKTAG('i', 'a', 'v', 's') || tag1 == MKTAG('i', 'v', 'a', 's')){
int64_t dv_dur;
if (s->nb_streams != 1)
goto fail;
if (handler != MKTAG('d', 'v', 's', 'd') &&
handler != MKTAG('d', 'v', 'h', 'd') &&
handler != MKTAG('d', 'v', 's', 'l'))
goto fail;
ast = s->streams[0]->priv_data;
av_freep(&s->streams[0]->codec->extradata);
av_freep(&s->streams[0]);
s->nb_streams = 0;
if (ENABLE_DV_DEMUXER) {
avi->dv_demux = dv_init_demux(s);
if (!avi->dv_demux)
goto fail;
}
s->streams[0]->priv_data = ast;
url_fskip(pb, 3 * 4);
ast->scale = get_le32(pb);
ast->rate = get_le32(pb);
url_fskip(pb, 4);
dv_dur = get_le32(pb);
if (ast->scale > 0 && ast->rate > 0 && dv_dur > 0) {
dv_dur *= AV_TIME_BASE;
s->duration = av_rescale(dv_dur, ast->scale, ast->rate);
}
stream_index = s->nb_streams - 1;
url_fskip(pb, size - 9*4);
break;
}
assert(stream_index < s->nb_streams);
st->codec->stream_codec_tag= handler;
get_le32(pb);
get_le16(pb);
get_le16(pb);
get_le32(pb);
ast->scale = get_le32(pb);
ast->rate = get_le32(pb);
if(ast->scale && ast->rate){
}else if(frame_period){
ast->rate = 1000000;
ast->scale = frame_period;
}else{
ast->rate = 25;
ast->scale = 1;
}
av_set_pts_info(st, 64, ast->scale, ast->rate);
ast->cum_len=get_le32(pb);
nb_frames = get_le32(pb);
st->start_time = 0;
st->duration = nb_frames;
get_le32(pb);
get_le32(pb);
ast->sample_size = get_le32(pb);
ast->cum_len *= FFMAX(1, ast->sample_size);
switch(tag1) {
case MKTAG('v', 'i', 'd', 's'):
codec_type = CODEC_TYPE_VIDEO;
ast->sample_size = 0;
break;
case MKTAG('a', 'u', 'd', 's'):
codec_type = CODEC_TYPE_AUDIO;
break;
case MKTAG('t', 'x', 't', 's'):
codec_type = CODEC_TYPE_DATA;
break;
default:
av_log(s, AV_LOG_ERROR, "unknown stream type %X\n", tag1);
goto fail;
}
ast->frame_offset= ast->cum_len;
url_fskip(pb, size - 12 * 4);
break;
case MKTAG('s', 't', 'r', 'f'):
if (stream_index >= (unsigned)s->nb_streams || avi->dv_demux) {
url_fskip(pb, size);
} else {
st = s->streams[stream_index];
switch(codec_type) {
case CODEC_TYPE_VIDEO:
if(amv_file_format){
st->codec->width=avih_width;
st->codec->height=avih_height;
st->codec->codec_type = CODEC_TYPE_VIDEO;
st->codec->codec_id = CODEC_ID_AMV;
url_fskip(pb, size);
break;
}
get_le32(pb);
st->codec->width = get_le32(pb);
st->codec->height = get_le32(pb);
get_le16(pb);
st->codec->bits_per_sample= get_le16(pb);
tag1 = get_le32(pb);
get_le32(pb);
get_le32(pb);
get_le32(pb);
get_le32(pb);
get_le32(pb);
if (tag1 == MKTAG('D', 'X', 'S', 'B')) {
st->codec->codec_type = CODEC_TYPE_SUBTITLE;
st->codec->codec_tag = tag1;
st->codec->codec_id = CODEC_ID_XSUB;
break;
}
if(size > 10*4 && size<(1<<30)){
st->codec->extradata_size= size - 10*4;
st->codec->extradata= av_malloc(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
get_buffer(pb, st->codec->extradata, st->codec->extradata_size);
}
if(st->codec->extradata_size & 1)
get_byte(pb);
if (st->codec->extradata_size && (st->codec->bits_per_sample <= 8)) {
st->codec->palctrl = av_mallocz(sizeof(AVPaletteControl));
#ifdef WORDS_BIGENDIAN
for (i = 0; i < FFMIN(st->codec->extradata_size, AVPALETTE_SIZE)/4; i++)
st->codec->palctrl->palette[i] = bswap_32(((uint32_t*)st->codec->extradata)[i]);
#else
memcpy(st->codec->palctrl->palette, st->codec->extradata,
FFMIN(st->codec->extradata_size, AVPALETTE_SIZE));
#endif
st->codec->palctrl->palette_changed = 1;
}
#ifdef DEBUG
print_tag("video", tag1, 0);
#endif
st->codec->codec_type = CODEC_TYPE_VIDEO;
st->codec->codec_tag = tag1;
st->codec->codec_id = codec_get_id(codec_bmp_tags, tag1);
st->need_parsing = AVSTREAM_PARSE_HEADERS;
break;
case CODEC_TYPE_AUDIO:
get_wav_header(pb, st->codec, size);
if(ast->sample_size && st->codec->block_align && ast->sample_size != st->codec->block_align){
av_log(s, AV_LOG_WARNING, "sample size (%d) != block align (%d)\n", ast->sample_size, st->codec->block_align);
ast->sample_size= st->codec->block_align;
}
if (size%2)
url_fskip(pb, 1);
st->need_parsing = AVSTREAM_PARSE_TIMESTAMPS;
if (st->codec->codec_id == CODEC_ID_AAC && st->codec->extradata_size)
st->need_parsing = AVSTREAM_PARSE_NONE;
if (st->codec->stream_codec_tag == ff_get_fourcc("Axan")){
st->codec->codec_id = CODEC_ID_XAN_DPCM;
st->codec->codec_tag = 0;
}
if (amv_file_format)
st->codec->codec_id = CODEC_ID_ADPCM_IMA_AMV;
break;
default:
st->codec->codec_type = CODEC_TYPE_DATA;
st->codec->codec_id= CODEC_ID_NONE;
st->codec->codec_tag= 0;
url_fskip(pb, size);
break;
}
}
break;
case MKTAG('i', 'n', 'd', 'x'):
i= url_ftell(pb);
if(!url_is_streamed(pb) && !(s->flags & AVFMT_FLAG_IGNIDX)){
read_braindead_odml_indx(s, 0);
}
url_fseek(pb, i+size, SEEK_SET);
break;
case MKTAG('v', 'p', 'r', 'p'):
if(stream_index < (unsigned)s->nb_streams && size > 9*4){
AVRational active, active_aspect;
st = s->streams[stream_index];
get_le32(pb);
get_le32(pb);
get_le32(pb);
get_le32(pb);
get_le32(pb);
active_aspect.den= get_le16(pb);
active_aspect.num= get_le16(pb);
active.num = get_le32(pb);
active.den = get_le32(pb);
get_le32(pb);
if(active_aspect.num && active_aspect.den && active.num && active.den){
st->codec->sample_aspect_ratio= av_div_q(active_aspect, active);
}
size -= 9*4;
}
url_fseek(pb, size, SEEK_CUR);
break;
case MKTAG('I', 'N', 'A', 'M'):
avi_read_tag(pb, s->title, sizeof(s->title), size);
break;
case MKTAG('I', 'A', 'R', 'T'):
avi_read_tag(pb, s->author, sizeof(s->author), size);
break;
case MKTAG('I', 'C', 'O', 'P'):
avi_read_tag(pb, s->copyright, sizeof(s->copyright), size);
break;
case MKTAG('I', 'C', 'M', 'T'):
avi_read_tag(pb, s->comment, sizeof(s->comment), size);
break;
case MKTAG('I', 'G', 'N', 'R'):
avi_read_tag(pb, s->genre, sizeof(s->genre), size);
break;
case MKTAG('I', 'P', 'R', 'D'):
avi_read_tag(pb, s->album, sizeof(s->album), size);
break;
case MKTAG('I', 'P', 'R', 'T'):
avi_read_tag(pb, str_track, sizeof(str_track), size);
sscanf(str_track, "%d", &s->track);
break;
default:
if(size > 1000000){
av_log(s, AV_LOG_ERROR, "well something went wrong during header parsing, "
"ill ignore it and try to continue anyway\n");
avi->movi_list = url_ftell(pb) - 4;
avi->movi_end = url_fsize(pb);
goto end_of_header;
}
size += (size & 1);
url_fskip(pb, size);
break;
}
}
end_of_header:
if (stream_index != s->nb_streams - 1) {
fail:
for(i=0;i<s->nb_streams;i++) {
av_freep(&s->streams[i]->codec->extradata);
av_freep(&s->streams[i]);
}
return -1;
}
if(!avi->index_loaded && !url_is_streamed(pb))
avi_load_index(s);
avi->index_loaded = 1;
avi->non_interleaved |= guess_ni_flag(s);
if(avi->non_interleaved)
clean_index(s);
return 0;
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavformat/avidec.c/#L593 |
d2a_code_data_44735 | 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/#L1648 |
d2a_code_data_44736 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | https://github.com/openssl/openssl/blob/4af793036f6ef4f0a1078e5d7155426a98d50e37/crypto/bn/bn_ctx.c/#L353 |
d2a_code_data_44737 | static int sdp_read_header(AVFormatContext *s)
{
RTSPState *rt = s->priv_data;
RTSPStream *rtsp_st;
int size, i, err;
char *content;
char url[1024];
if (!ff_network_init())
return AVERROR(EIO);
if (s->max_delay < 0)
s->max_delay = DEFAULT_REORDERING_DELAY;
if (rt->rtsp_flags & RTSP_FLAG_CUSTOM_IO)
rt->lower_transport = RTSP_LOWER_TRANSPORT_CUSTOM;
content = av_malloc(SDP_MAX_SIZE);
size = avio_read(s->pb, content, SDP_MAX_SIZE - 1);
if (size <= 0) {
av_free(content);
return AVERROR_INVALIDDATA;
}
content[size] ='\0';
err = ff_sdp_parse(s, content);
av_free(content);
if (err) goto fail;
for (i = 0; i < rt->nb_rtsp_streams; i++) {
char namebuf[50];
rtsp_st = rt->rtsp_streams[i];
if (!(rt->rtsp_flags & RTSP_FLAG_CUSTOM_IO)) {
getnameinfo((struct sockaddr*) &rtsp_st->sdp_ip, sizeof(rtsp_st->sdp_ip),
namebuf, sizeof(namebuf), NULL, 0, NI_NUMERICHOST);
ff_url_join(url, sizeof(url), "rtp", NULL,
namebuf, rtsp_st->sdp_port,
"?localport=%d&ttl=%d&connect=%d", rtsp_st->sdp_port,
rtsp_st->sdp_ttl,
rt->rtsp_flags & RTSP_FLAG_FILTER_SRC ? 1 : 0);
if (rtsp_st->source_addr[0])
av_strlcatf(url, sizeof(url), "&sources=%s", rtsp_st->source_addr);
if (ffurl_open(&rtsp_st->rtp_handle, url, AVIO_FLAG_READ_WRITE,
&s->interrupt_callback, NULL) < 0) {
err = AVERROR_INVALIDDATA;
goto fail;
}
}
if ((err = ff_rtsp_open_transport_ctx(s, rtsp_st)))
goto fail;
}
return 0;
fail:
ff_rtsp_close_streams(s);
ff_network_close();
return err;
} | https://github.com/libav/libav/blob/fd8189932147a524fe43532b46baa35e8be92a1b/libavformat/rtsp.c/#L2085 |
d2a_code_data_44738 | static int query_formats(AVFilterContext *ctx)
{
AVFilterFormats *formats;
enum AVPixelFormat pix_fmt;
int ret;
if (ctx->inputs[0]) {
const AVPixFmtDescriptor *desc = NULL;
formats = NULL;
while ((desc = av_pix_fmt_desc_next(desc))) {
pix_fmt = av_pix_fmt_desc_get_id(desc);
if ((sws_isSupportedInput(pix_fmt) ||
sws_isSupportedEndiannessConversion(pix_fmt))
&& (ret = ff_add_format(&formats, pix_fmt)) < 0) {
ff_formats_unref(&formats);
return ret;
}
}
ff_formats_ref(formats, &ctx->inputs[0]->out_formats);
}
if (ctx->outputs[0]) {
const AVPixFmtDescriptor *desc = NULL;
formats = NULL;
while ((desc = av_pix_fmt_desc_next(desc))) {
pix_fmt = av_pix_fmt_desc_get_id(desc);
if ((sws_isSupportedOutput(pix_fmt) ||
sws_isSupportedEndiannessConversion(pix_fmt))
&& (ret = ff_add_format(&formats, pix_fmt)) < 0) {
ff_formats_unref(&formats);
return ret;
}
}
ff_formats_ref(formats, &ctx->outputs[0]->in_formats);
}
return 0;
} | https://github.com/libav/libav/blob/bf50607ab76157ba251a01f5baa5cf67b23b2ee9/libavfilter/vf_scale.c/#L135 |
d2a_code_data_44739 | 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_44740 | int SHA512_Update(SHA512_CTX *c, const void *_data, size_t len)
{
SHA_LONG64 l;
unsigned char *p = c->u.p;
const unsigned char *data = (const unsigned char *)_data;
if (len == 0)
return 1;
l = (c->Nl + (((SHA_LONG64) len) << 3)) & U64(0xffffffffffffffff);
if (l < c->Nl)
c->Nh++;
if (sizeof(len) >= 8)
c->Nh += (((SHA_LONG64) len) >> 61);
c->Nl = l;
if (c->num != 0) {
size_t n = sizeof(c->u) - c->num;
if (len < n) {
memcpy(p + c->num, data, len), c->num += (unsigned int)len;
return 1;
} else {
memcpy(p + c->num, data, n), c->num = 0;
len -= n, data += n;
sha512_block_data_order(c, p, 1);
}
}
if (len >= sizeof(c->u)) {
#ifndef SHA512_BLOCK_CAN_MANAGE_UNALIGNED_DATA
if ((size_t)data % sizeof(c->u.d[0]) != 0)
while (len >= sizeof(c->u))
memcpy(p, data, sizeof(c->u)),
sha512_block_data_order(c, p, 1),
len -= sizeof(c->u), data += sizeof(c->u);
else
#endif
sha512_block_data_order(c, data, len / sizeof(c->u)),
data += len, len %= sizeof(c->u), data -= len;
}
if (len != 0)
memcpy(p, data, len), c->num = (int)len;
return 1;
} | https://github.com/openssl/openssl/blob/04dec1ab34df70c1588d42cc394e8fa8b5f3191c/crypto/sha/sha512.c/#L212 |
d2a_code_data_44741 | int av_write_trailer(AVFormatContext *s)
{
int ret, i;
for(;;){
AVPacket pkt;
ret= av_interleave_packet(s, &pkt, NULL, 1);
if(ret<0)
goto fail;
if(!ret)
break;
truncate_ts(s->streams[pkt.stream_index], &pkt);
ret= s->oformat->write_packet(s, &pkt);
av_free_packet(&pkt);
if(ret<0)
goto fail;
if(url_ferror(s->pb))
goto fail;
}
if(s->oformat->write_trailer)
ret = s->oformat->write_trailer(s);
fail:
if(ret == 0)
ret=url_ferror(s->pb);
for(i=0;i<s->nb_streams;i++)
av_freep(&s->streams[i]->priv_data);
av_freep(&s->priv_data);
return ret;
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavformat/utils.c/#L2560 |
d2a_code_data_44742 | static int ts_verify_cert(X509_STORE *store, STACK_OF(X509) *untrusted,
X509 *signer, STACK_OF(X509) **chain)
{
X509_STORE_CTX *cert_ctx = NULL;
int i;
int ret = 0;
*chain = NULL;
cert_ctx = X509_STORE_CTX_new();
if (cert_ctx == NULL) {
TSerr(TS_F_TS_VERIFY_CERT, ERR_R_MALLOC_FAILURE);
goto err;
}
if (!X509_STORE_CTX_init(cert_ctx, store, signer, untrusted))
goto end;
X509_STORE_CTX_set_purpose(cert_ctx, X509_PURPOSE_TIMESTAMP_SIGN);
i = X509_verify_cert(cert_ctx);
if (i <= 0) {
int j = X509_STORE_CTX_get_error(cert_ctx);
TSerr(TS_F_TS_VERIFY_CERT, TS_R_CERTIFICATE_VERIFY_ERROR);
ERR_add_error_data(2, "Verify error:",
X509_verify_cert_error_string(j));
goto err;
}
*chain = X509_STORE_CTX_get1_chain(cert_ctx);
ret = 1;
goto end;
err:
ret = 0;
end:
X509_STORE_CTX_free(cert_ctx);
return ret;
} | https://github.com/openssl/openssl/blob/84c34ba8762463057d372e22ad98a045dbd9a51f/crypto/ts/ts_rsp_verify.c/#L197 |
d2a_code_data_44743 | static unsigned int
fixup_vorbis_headers(AVFormatContext * as, struct oggvorbis_private *priv,
uint8_t **buf)
{
int i,offset, len;
unsigned char *ptr;
len = priv->len[0] + priv->len[1] + priv->len[2];
ptr = *buf = av_mallocz(len + len/255 + 64);
ptr[0] = 2;
offset = 1;
offset += av_xiphlacing(&ptr[offset], priv->len[0]);
offset += av_xiphlacing(&ptr[offset], priv->len[1]);
for (i = 0; i < 3; i++) {
memcpy(&ptr[offset], priv->packet[i], priv->len[i]);
offset += priv->len[i];
av_freep(&priv->packet[i]);
}
*buf = av_realloc(*buf, offset + FF_INPUT_BUFFER_PADDING_SIZE);
return offset;
} | https://github.com/libav/libav/blob/e056f8d37dfc1252a288b0272256a7562a870003/libavformat/oggparsevorbis.c/#L182 |
d2a_code_data_44744 | 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/7ff018c1cb43a5fe5ee2049d325cdd785852067a/libavcodec/bitstream.h/#L237 |
d2a_code_data_44745 | static size_t kat_nonce(DRBG_CTX *dctx, unsigned char **pout,
int entropy, size_t min_len, size_t max_len)
{
TEST_CTX *t = (TEST_CTX *)RAND_DRBG_get_ex_data(dctx, app_data_index);
t->noncecnt++;
*pout = (unsigned char *)t->nonce;
return t->noncelen;
} | https://github.com/openssl/openssl/blob/12fb8c3d2dd00f3d4f1b084385403d26ed64a596/test/drbgtest.c/#L132 |
d2a_code_data_44746 | 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/#L1061 |
d2a_code_data_44747 | static int spdif_header_aac(AVFormatContext *s, AVPacket *pkt)
{
IEC61937Context *ctx = s->priv_data;
AACADTSHeaderInfo hdr;
GetBitContext gbc;
int ret;
init_get_bits(&gbc, pkt->data, AAC_ADTS_HEADER_SIZE * 8);
ret = ff_aac_parse_header(&gbc, &hdr);
if (ret < 0) {
av_log(s, AV_LOG_ERROR, "Wrong AAC file format\n");
return AVERROR_INVALIDDATA;
}
ctx->pkt_offset = hdr.samples << 2;
switch (hdr.num_aac_frames) {
case 1:
ctx->data_type = IEC61937_MPEG2_AAC;
break;
case 2:
ctx->data_type = IEC61937_MPEG2_AAC_LSF_2048;
break;
case 4:
ctx->data_type = IEC61937_MPEG2_AAC_LSF_4096;
break;
default:
av_log(s, AV_LOG_ERROR, "%i samples in AAC frame not supported\n",
hdr.samples);
return AVERROR(EINVAL);
}
return 0;
} | https://github.com/libav/libav/blob/482d98f69b2eb7a7b0b5054101a43db384e9432b/libavformat/spdifenc.c/#L351 |
d2a_code_data_44748 | IMPLEMENT_new_ctx(ofb, OFB, 256) | https://github.com/openssl/openssl/blob/f79858ac4d90a450d0620d1ecb713bc35d7d9f8d/providers/common/ciphers/aes.c/#L298 |
d2a_code_data_44749 | static int kek_wrap_key(unsigned char *out, size_t *outlen,
const unsigned char *in, size_t inlen,
EVP_CIPHER_CTX *ctx)
{
size_t blocklen = EVP_CIPHER_CTX_block_size(ctx);
size_t olen;
int dummy;
olen = (inlen + 4 + blocklen - 1) / blocklen;
olen *= blocklen;
if (olen < 2 * blocklen) {
return 0;
}
if (inlen > 0xFF) {
return 0;
}
if (out) {
out[0] = (unsigned char)inlen;
out[1] = in[0] ^ 0xFF;
out[2] = in[1] ^ 0xFF;
out[3] = in[2] ^ 0xFF;
memcpy(out + 4, in, inlen);
if (olen > inlen + 4
&& RAND_bytes(out + 4 + inlen, olen - 4 - inlen) <= 0)
return 0;
if (!EVP_EncryptUpdate(ctx, out, &dummy, out, olen)
|| !EVP_EncryptUpdate(ctx, out, &dummy, out, olen))
return 0;
}
*outlen = olen;
return 1;
} | https://github.com/openssl/openssl/blob/846ec07d904f9cc81d486db0db14fb84f61ff6e5/crypto/cms/cms_pwri.c/#L301 |
d2a_code_data_44750 | int bn_cmp_words(const BN_ULONG *a, const BN_ULONG *b, int n)
{
int i;
BN_ULONG aa, bb;
if (n == 0)
return 0;
aa = a[n - 1];
bb = b[n - 1];
if (aa != bb)
return ((aa > bb) ? 1 : -1);
for (i = n - 2; i >= 0; i--) {
aa = a[i];
bb = b[i];
if (aa != bb)
return ((aa > bb) ? 1 : -1);
}
return 0;
} | https://github.com/openssl/openssl/blob/bd01733fdd9a5a0acdc72cf5c6601d37e8ddd801/crypto/bn/bn_lib.c/#L727 |
d2a_code_data_44751 | static int flac_decode_frame(AVCodecContext *avctx,
void *data, int *data_size,
const uint8_t *buf, int buf_size)
{
FLACContext *s = avctx->priv_data;
int tmp = 0, i, j = 0, input_buf_size = 0;
int16_t *samples_16 = data;
int32_t *samples_32 = data;
int alloc_data_size= *data_size;
*data_size=0;
if (s->max_framesize == 0) {
s->max_framesize= FFMAX(4, buf_size);
s->bitstream= av_fast_realloc(s->bitstream, &s->allocated_bitstream_size, s->max_framesize);
}
if (1 && s->max_framesize) {
if (s->bitstream_size < 4 || AV_RL32(s->bitstream) != MKTAG('f','L','a','C'))
buf_size= FFMIN(buf_size, s->max_framesize - FFMIN(s->bitstream_size, s->max_framesize));
input_buf_size= buf_size;
if (s->bitstream_size + buf_size < buf_size || s->bitstream_index + s->bitstream_size + buf_size < s->bitstream_index)
return -1;
if (s->allocated_bitstream_size < s->bitstream_size + buf_size)
s->bitstream= av_fast_realloc(s->bitstream, &s->allocated_bitstream_size, s->bitstream_size + buf_size);
if (s->bitstream_index + s->bitstream_size + buf_size > s->allocated_bitstream_size) {
memmove(s->bitstream, &s->bitstream[s->bitstream_index],
s->bitstream_size);
s->bitstream_index=0;
}
memcpy(&s->bitstream[s->bitstream_index + s->bitstream_size],
buf, buf_size);
buf= &s->bitstream[s->bitstream_index];
buf_size += s->bitstream_size;
s->bitstream_size= buf_size;
if (buf_size < s->max_framesize && input_buf_size) {
return input_buf_size;
}
}
init_get_bits(&s->gb, buf, buf_size*8);
if (metadata_parse(s))
goto end;
tmp = show_bits(&s->gb, 16);
if ((tmp & 0xFFFE) != 0xFFF8) {
av_log(s->avctx, AV_LOG_ERROR, "FRAME HEADER not here\n");
while (get_bits_count(&s->gb)/8+2 < buf_size && (show_bits(&s->gb, 16) & 0xFFFE) != 0xFFF8)
skip_bits(&s->gb, 8);
goto end;
}
skip_bits(&s->gb, 16);
if (decode_frame(s, alloc_data_size) < 0) {
av_log(s->avctx, AV_LOG_ERROR, "decode_frame() failed\n");
s->bitstream_size=0;
s->bitstream_index=0;
return -1;
}
#define DECORRELATE(left, right)\
assert(s->channels == 2);\
for (i = 0; i < s->blocksize; i++) {\
int a= s->decoded[0][i];\
int b= s->decoded[1][i];\
if (s->is32) {\
*samples_32++ = (left) << s->sample_shift;\
*samples_32++ = (right) << s->sample_shift;\
} else {\
*samples_16++ = (left) << s->sample_shift;\
*samples_16++ = (right) << s->sample_shift;\
}\
}\
break;
switch (s->decorrelation) {
case INDEPENDENT:
for (j = 0; j < s->blocksize; j++) {
for (i = 0; i < s->channels; i++) {
if (s->is32)
*samples_32++ = s->decoded[i][j] << s->sample_shift;
else
*samples_16++ = s->decoded[i][j] << s->sample_shift;
}
}
break;
case LEFT_SIDE:
DECORRELATE(a,a-b)
case RIGHT_SIDE:
DECORRELATE(a+b,b)
case MID_SIDE:
DECORRELATE( (a-=b>>1) + b, a)
}
*data_size = s->blocksize * s->channels * (s->is32 ? 4 : 2);
end:
i= (get_bits_count(&s->gb)+7)/8;
if (i > buf_size) {
av_log(s->avctx, AV_LOG_ERROR, "overread: %d\n", i - buf_size);
s->bitstream_size=0;
s->bitstream_index=0;
return -1;
}
if (s->bitstream_size) {
s->bitstream_index += i;
s->bitstream_size -= i;
return input_buf_size;
} else
return i;
} | https://github.com/libav/libav/blob/184bc53db4fded8857af09cee2adc7197940deb7/libavcodec/flacdec.c/#L618 |
d2a_code_data_44752 | static int do_multi(int multi)
{
int n;
int fd[2];
int *fds;
static char sep[]=":";
fds=malloc(multi*sizeof *fds);
for(n=0 ; n < multi ; ++n)
{
pipe(fd);
if(fork())
{
close(fd[1]);
fds[n]=fd[0];
}
else
{
close(fd[0]);
close(1);
dup(fd[1]);
close(fd[1]);
mr=1;
usertime=0;
return 0;
}
printf("Forked child %d\n",n);
}
for(n=0 ; n < multi ; ++n)
{
FILE *f;
char buf[1024];
char *p;
f=fdopen(fds[n],"r");
while(fgets(buf,sizeof buf,f))
{
p=strchr(buf,'\n');
if(p)
*p='\0';
if(buf[0] != '+')
{
fprintf(stderr,"Don't understand line '%s' from child %d\n",
buf,n);
continue;
}
printf("Got: %s from %d\n",buf,n);
if(!strncmp(buf,"+F:",3))
{
int alg;
int j;
p=buf+3;
alg=atoi(sstrsep(&p,sep));
sstrsep(&p,sep);
for(j=0 ; j < SIZE_NUM ; ++j)
results[alg][j]+=atof(sstrsep(&p,sep));
}
else if(!strncmp(buf,"+F2:",4))
{
int k;
double d;
p=buf+4;
k=atoi(sstrsep(&p,sep));
sstrsep(&p,sep);
d=atof(sstrsep(&p,sep));
if(n)
rsa_results[k][0]=1/(1/rsa_results[k][0]+1/d);
else
rsa_results[k][0]=d;
d=atof(sstrsep(&p,sep));
if(n)
rsa_results[k][1]=1/(1/rsa_results[k][1]+1/d);
else
rsa_results[k][1]=d;
}
else if(!strncmp(buf,"+F2:",4))
{
int k;
double d;
p=buf+4;
k=atoi(sstrsep(&p,sep));
sstrsep(&p,sep);
d=atof(sstrsep(&p,sep));
if(n)
rsa_results[k][0]=1/(1/rsa_results[k][0]+1/d);
else
rsa_results[k][0]=d;
d=atof(sstrsep(&p,sep));
if(n)
rsa_results[k][1]=1/(1/rsa_results[k][1]+1/d);
else
rsa_results[k][1]=d;
}
else if(!strncmp(buf,"+F3:",4))
{
int k;
double d;
p=buf+4;
k=atoi(sstrsep(&p,sep));
sstrsep(&p,sep);
d=atof(sstrsep(&p,sep));
if(n)
dsa_results[k][0]=1/(1/dsa_results[k][0]+1/d);
else
dsa_results[k][0]=d;
d=atof(sstrsep(&p,sep));
if(n)
dsa_results[k][1]=1/(1/dsa_results[k][1]+1/d);
else
dsa_results[k][1]=d;
}
#ifndef OPENSSL_NO_ECDSA
else if(!strncmp(buf,"+F4:",4))
{
int k;
double d;
p=buf+4;
k=atoi(sstrsep(&p,sep));
sstrsep(&p,sep);
d=atof(sstrsep(&p,sep));
if(n)
ecdsa_results[k][0]=1/(1/ecdsa_results[k][0]+1/d);
else
ecdsa_results[k][0]=d;
d=atof(sstrsep(&p,sep));
if(n)
ecdsa_results[k][1]=1/(1/ecdsa_results[k][1]+1/d);
else
ecdsa_results[k][1]=d;
}
#endif
#ifndef OPENSSL_NO_ECDH
else if(!strncmp(buf,"+F5:",4))
{
int k;
double d;
p=buf+4;
k=atoi(sstrsep(&p,sep));
sstrsep(&p,sep);
d=atof(sstrsep(&p,sep));
if(n)
ecdh_results[k][0]=1/(1/ecdh_results[k][0]+1/d);
else
ecdh_results[k][0]=d;
}
#endif
else if(!strncmp(buf,"+H:",3))
{
}
else
fprintf(stderr,"Unknown type '%s' from child %d\n",buf,n);
}
}
return 1;
} | https://github.com/openssl/openssl/blob/a1d85309ee183c97a5ee4f8277f17d87d7786e25/apps/speed.c/#L2414 |
d2a_code_data_44753 | static int encode_block(SVQ1Context *s, uint8_t *src, uint8_t *ref, uint8_t *decoded, int stride, int level, int threshold, int lambda, int intra){
int count, y, x, i, j, split, best_mean, best_score, best_count;
int best_vector[6];
int block_sum[7]= {0, 0, 0, 0, 0, 0};
int w= 2<<((level+2)>>1);
int h= 2<<((level+1)>>1);
int size=w*h;
int16_t block[7][256];
const int8_t *codebook_sum, *codebook;
const uint16_t (*mean_vlc)[2];
const uint8_t (*multistage_vlc)[2];
best_score=0;
if(intra){
codebook_sum= svq1_intra_codebook_sum[level];
codebook= ff_svq1_intra_codebooks[level];
mean_vlc= ff_svq1_intra_mean_vlc;
multistage_vlc= ff_svq1_intra_multistage_vlc[level];
for(y=0; y<h; y++){
for(x=0; x<w; x++){
int v= src[x + y*stride];
block[0][x + w*y]= v;
best_score += v*v;
block_sum[0] += v;
}
}
}else{
codebook_sum= svq1_inter_codebook_sum[level];
codebook= ff_svq1_inter_codebooks[level];
mean_vlc= ff_svq1_inter_mean_vlc + 256;
multistage_vlc= ff_svq1_inter_multistage_vlc[level];
for(y=0; y<h; y++){
for(x=0; x<w; x++){
int v= src[x + y*stride] - ref[x + y*stride];
block[0][x + w*y]= v;
best_score += v*v;
block_sum[0] += v;
}
}
}
best_count=0;
best_score -= ((block_sum[0]*block_sum[0])>>(level+3));
best_mean= (block_sum[0] + (size>>1)) >> (level+3);
if(level<4){
for(count=1; count<7; count++){
int best_vector_score= INT_MAX;
int best_vector_sum=-999, best_vector_mean=-999;
const int stage= count-1;
const int8_t *vector;
for(i=0; i<16; i++){
int sum= codebook_sum[stage*16 + i];
int sqr, diff, score;
vector = codebook + stage*size*16 + i*size;
sqr = s->dsp.ssd_int8_vs_int16(vector, block[stage], size);
diff= block_sum[stage] - sum;
score= sqr - ((diff*(int64_t)diff)>>(level+3));
if(score < best_vector_score){
int mean= (diff + (size>>1)) >> (level+3);
assert(mean >-300 && mean<300);
mean= av_clip(mean, intra?0:-256, 255);
best_vector_score= score;
best_vector[stage]= i;
best_vector_sum= sum;
best_vector_mean= mean;
}
}
assert(best_vector_mean != -999);
vector= codebook + stage*size*16 + best_vector[stage]*size;
for(j=0; j<size; j++){
block[stage+1][j] = block[stage][j] - vector[j];
}
block_sum[stage+1]= block_sum[stage] - best_vector_sum;
best_vector_score +=
lambda*(+ 1 + 4*count
+ multistage_vlc[1+count][1]
+ mean_vlc[best_vector_mean][1]);
if(best_vector_score < best_score){
best_score= best_vector_score;
best_count= count;
best_mean= best_vector_mean;
}
}
}
split=0;
if(best_score > threshold && level){
int score=0;
int offset= (level&1) ? stride*h/2 : w/2;
PutBitContext backup[6];
for(i=level-1; i>=0; i--){
backup[i]= s->reorder_pb[i];
}
score += encode_block(s, src , ref , decoded , stride, level-1, threshold>>1, lambda, intra);
score += encode_block(s, src + offset, ref + offset, decoded + offset, stride, level-1, threshold>>1, lambda, intra);
score += lambda;
if(score < best_score){
best_score= score;
split=1;
}else{
for(i=level-1; i>=0; i--){
s->reorder_pb[i]= backup[i];
}
}
}
if (level > 0)
put_bits(&s->reorder_pb[level], 1, split);
if(!split){
assert((best_mean >= 0 && best_mean<256) || !intra);
assert(best_mean >= -256 && best_mean<256);
assert(best_count >=0 && best_count<7);
assert(level<4 || best_count==0);
put_bits(&s->reorder_pb[level],
multistage_vlc[1 + best_count][1],
multistage_vlc[1 + best_count][0]);
put_bits(&s->reorder_pb[level], mean_vlc[best_mean][1],
mean_vlc[best_mean][0]);
for (i = 0; i < best_count; i++){
assert(best_vector[i]>=0 && best_vector[i]<16);
put_bits(&s->reorder_pb[level], 4, best_vector[i]);
}
for(y=0; y<h; y++){
for(x=0; x<w; x++){
decoded[x + y*stride]= src[x + y*stride] - block[best_count][x + w*y] + best_mean;
}
}
}
return best_score;
} | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/svq1enc.c/#L139 |
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