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Document that av_write_header sets stream time_base to a value of it chosing.

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Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>
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Reimar Döffinger 2011-01-29 13:53:14 +01:00 committed by Janne Grunau
parent ec25f83bd9
commit 5d820db2f9
1 changed files with 4 additions and 0 deletions
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4
libavformat/avformat.h
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@ -510,6 +510,8 @@ typedef struct AVStream {
* This is the fundamental unit of time (in seconds) in terms
* of which frame timestamps are represented. For fixed-fps content,
* time base should be 1/framerate and timestamp increments should be 1.
* decoding: set by libavformat
* encoding: set by libavformat in av_write_header
*/
AVRational time_base;
int pts_wrap_bits; /**< number of bits in pts (used for wrapping control) */
@ -1380,6 +1382,8 @@ void av_url_split(char *proto, int proto_size,
/**
* Allocate the stream private data and write the stream header to an
* output media file.
* @note: this sets stream time-bases, if possible to stream->codec->time_base
* but for some formats it might also be some other time base
*
* @param s media file handle
* @return 0 if OK, AVERROR_xxx on error