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avformat: add ff_get_extradata()

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
2013-12-25 16:34:46 +01:00
parent ac480cb58d
commit ee4e805093
2 changed files with 25 additions and 0 deletions
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16
libavformat/utils.c
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@@ -2701,6 +2701,22 @@ int ff_alloc_extradata(AVCodecContext *avctx, int size)
return ret;
}
int ff_get_extradata(AVCodecContext *avctx, AVIOContext *pb, int size)
{
int ret = ff_alloc_extradata(avctx, size);
if (ret < 0)
return ret;
ret = avio_read(pb, avctx->extradata, size);
if (ret != size) {
av_freep(&avctx->extradata);
avctx->extradata_size = 0;
av_log(avctx, AV_LOG_ERROR, "Failed to read extradata of size %d\n", size);
return ret < 0 ? ret : AVERROR_INVALIDDATA;
}
return ret;
}
int ff_rfps_add_frame(AVFormatContext *ic, AVStream *st, int64_t ts)
{
int i, j;