uint8_t **data, int *size)
{
ExtractExtradataContext *s = ctx->priv_data;
+ const uint8_t *ptr = pkt->data, *end = pkt->data + pkt->size;
uint32_t state = UINT32_MAX;
int has_extradata = 0, extradata_size = 0;
- int i;
- for (i = 0; i < pkt->size; i++) {
- state = (state << 8) | pkt->data[i];
- if (IS_MARKER(state)) {
- if (state == VC1_CODE_SEQHDR || state == VC1_CODE_ENTRYPOINT) {
- has_extradata = 1;
- } else if (has_extradata) {
- extradata_size = i - 3;
- break;
- }
- }
+ while (ptr < end) {
+ ptr = avpriv_find_start_code(ptr, end, &state);
+ if (state == VC1_CODE_SEQHDR || state == VC1_CODE_ENTRYPOINT) {
+ has_extradata = 1;
+ } else if (has_extradata && IS_MARKER(state))
+ extradata_size = ptr - 4 - pkt->data;
}
if (extradata_size) {