diff options
Diffstat (limited to 'intern/ffmpeg/ffmpeg_compat.h')
| -rw-r--r-- | intern/ffmpeg/ffmpeg_compat.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/intern/ffmpeg/ffmpeg_compat.h b/intern/ffmpeg/ffmpeg_compat.h index 54a004d53e2..0c22cf82688 100644 --- a/intern/ffmpeg/ffmpeg_compat.h +++ b/intern/ffmpeg/ffmpeg_compat.h @@ -43,6 +43,55 @@ # define FFMPEG_INLINE static inline #endif +#if (LIBAVFORMAT_VERSION_MAJOR < 58) || \ + ((LIBAVFORMAT_VERSION_MAJOR == 58) && (LIBAVFORMAT_VERSION_MINOR < 76)) +# define FFMPEG_USE_DURATION_WORKAROUND 1 + +/* Before ffmpeg 4.4, package duration calculation used depricated variables to calculate the + * packet duration. Use the function from commit + * github.com/FFmpeg/FFmpeg/commit/1c0885334dda9ee8652e60c586fa2e3674056586 + * to calculate the correct framerate for ffmpeg < 4.4. + */ + +FFMPEG_INLINE +void my_guess_pkt_duration(AVFormatContext *s, AVStream *st, AVPacket *pkt) +{ + if (pkt->duration < 0 && st->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE) { + av_log(s, + AV_LOG_WARNING, + "Packet with invalid duration %" PRId64 " in stream %d\n", + pkt->duration, + pkt->stream_index); + pkt->duration = 0; + } + + if (pkt->duration) { + return; + } + + switch (st->codecpar->codec_type) { + case AVMEDIA_TYPE_VIDEO: + if (st->avg_frame_rate.num > 0 && st->avg_frame_rate.den > 0) { + pkt->duration = av_rescale_q(1, av_inv_q(st->avg_frame_rate), st->time_base); + } + else if (st->time_base.num * 1000LL > st->time_base.den) { + pkt->duration = 1; + } + break; + case AVMEDIA_TYPE_AUDIO: { + int frame_size = av_get_audio_frame_duration2(st->codecpar, pkt->size); + if (frame_size && st->codecpar->sample_rate) { + pkt->duration = av_rescale_q( + frame_size, (AVRational){1, st->codecpar->sample_rate}, st->time_base); + } + break; + } + default: + break; + } +} +#endif + FFMPEG_INLINE void my_update_cur_dts(AVFormatContext *s, AVStream *ref_st, int64_t timestamp) { |