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h264_mp4toannexb_bsf: support 24bit lengths

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gs_gail 2012-03-21 21:35:37 +01:00 committed by Michael Niedermayer
parent 2a4f1d38d9
commit 361c4cdca9
1 changed files with 2 additions and 8 deletions
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10
libavcodec/h264_mp4toannexb_bsf.c
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@ -82,8 +82,6 @@ static int h264_mp4toannexb_filter(AVBitStreamFilterContext *bsfc,
/* retrieve length coded size */
ctx->length_size = (*extradata++ & 0x3) + 1;
if (ctx->length_size == 3)
return AVERROR(EINVAL);
/* retrieve sps and pps unit(s) */
unit_nb = *extradata++ & 0x1f; /* number of sps unit(s) */
@ -142,12 +140,8 @@ pps:
if (buf + ctx->length_size > buf_end)
goto fail;
if (ctx->length_size == 1) {
nal_size = buf[0];
} else if (ctx->length_size == 2) {
nal_size = AV_RB16(buf);
} else
nal_size = AV_RB32(buf);
for(nal_size = 0, unit_type = 0; unit_type<ctx->length_size; unit_type++)
nal_size = (nal_size << 8) | buf[unit_type];
buf += ctx->length_size;
unit_type = *buf & 0x1f;