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lavc: add codec_descriptor field to AVCodecContext.

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This can be used to avoid a time consuming lookup of the
descriptor

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-08-11 16:07:28 +02:00
parent d0bf3bf1ff
commit da74e883f1
3 changed files with 15 additions and 1 deletions
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2
libavcodec/utils.c
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@ -712,6 +712,7 @@ MAKE_ACCESSORS(AVFrame, frame, AVDictionary *, metadata)
MAKE_ACCESSORS(AVFrame, frame, int, decode_error_flags)
MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
MAKE_ACCESSORS(AVCodecContext, codec, AVCodecDescriptor*, codec_descriptor)
static void avcodec_get_subtitle_defaults(AVSubtitle *sub)
{
@ -860,6 +861,7 @@ int attribute_align_arg avcodec_open2(AVCodecContext *avctx, AVCodec *codec, AVD
goto free_and_end;
}
avctx->frame_number = 0;
avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
(!avctx->time_base.num || !avctx->time_base.den)) {