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lib/ffmpeg/Time: add API documentation

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This commit is contained in:
Max Kellermann 2014-12-19 09:49:29 +01:00
parent 67e2d9f9e1
commit d0c481e44e
1 changed files with 9 additions and 0 deletions
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9
src/lib/ffmpeg/Time.hxx
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@ -36,6 +36,9 @@ extern "C" {
#undef SampleFormat #undef SampleFormat
#endif #endif
/**
* Convert a FFmpeg time stamp to a floating point value (in seconds).
*/
gcc_const gcc_const
static inline double static inline double
FfmpegTimeToDouble(int64_t t, const AVRational time_base) FfmpegTimeToDouble(int64_t t, const AVRational time_base)
@ -46,6 +49,9 @@ FfmpegTimeToDouble(int64_t t, const AVRational time_base)
/ (double)1024; / (double)1024;
} }
/**
* Convert a std::ratio to a #AVRational.
*/
template<typename Ratio> template<typename Ratio>
static inline constexpr AVRational static inline constexpr AVRational
RatioToAVRational() RatioToAVRational()
@ -53,6 +59,9 @@ RatioToAVRational()
return { Ratio::num, Ratio::den }; return { Ratio::num, Ratio::den };
} }
/**
* Convert a #SongTime to a FFmpeg time stamp with the given base.
*/
gcc_const gcc_const
static inline int64_t static inline int64_t
ToFfmpegTime(SongTime t, const AVRational time_base) ToFfmpegTime(SongTime t, const AVRational time_base)