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submodule
ffmpeg
Commits
da904faa
Commit
da904faa
authored
Mar 05, 2016
by
Michael Niedermayer
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avcodec: try to document timebase a bit more
Signed-off-by:
Michael Niedermayer
<
michael@niedermayer.cc
>
parent
f20cdcbc
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avcodec.h
libavcodec/avcodec.h
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libavcodec/avcodec.h
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da904faa
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@@ -1669,7 +1669,15 @@ typedef struct AVCodecContext {
* timebase should be 1/framerate and timestamp increments should be
* identically 1.
* This often, but not always is the inverse of the frame rate or field rate
* for video.
* for video. 1/time_base is not the average frame rate if the frame rate is not
* constant.
*
* Like containers, elementary streams also can store timestamps, 1/time_base
* is the unit in which these timestamps are specified.
* As example of such codec time base see ISO/IEC 14496-2:2001(E)
* vop_time_increment_resolution and fixed_vop_rate
* (fixed_vop_rate == 0 implies that it is different from the framerate)
*
* - encoding: MUST be set by user.
* - decoding: the use of this field for decoding is deprecated.
* Use framerate instead.
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