Lines Matching defs:extradata
30 * via the AVCodecContext's extradata[_size] field:
32 * AVCodecContext.extradata = pointer to ImageDescription, first characters
796 unsigned char *extradata;
828 /* prowl for the "SEQH" marker in the extradata */
829 extradata = (unsigned char *)avctx->extradata;
831 if (!memcmp(extradata, "SEQH", 4))
833 extradata++;
837 if (extradata && !memcmp(extradata, "SEQH", 4)) {
842 size = AV_RB32(&extradata[4]);
843 init_get_bits(&gb, extradata + 8, size*8);
899 if (uncompress(buf, (uLong*)&buf_len, extradata + 8 + offset, size - offset) != Z_OK) {