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player: remove speed adjustment from playing_audio_pts

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When calculating the audio pts, mpv multiplies the ao delay by the
current audio speed and subtracts it from the written audio pts. This
doesn't really make sense though. mpctx->video_pts is never affected by
the playback speed, and this leads to weird behavior like the audio-pts
property changing values while paused merely because the playback speed
changes. Remove the multiplication and simply subtract the delay by a
factor of 1 instead. When updating the av_diff in player/video, this
does actually need to take in account the audio speed so we do the
calculation there.
This commit is contained in:
Dudemanguy 2024-02-24 14:02:41 -06:00
parent d5dc1e8025
commit 7051e94e4b
2 changed files with 3 additions and 2 deletions
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2
player/audio.c
View File

@ -634,7 +634,7 @@ double playing_audio_pts(struct MPContext *mpctx)
double pts = written_audio_pts(mpctx);
if (pts == MP_NOPTS_VALUE || !mpctx->ao)
return pts;
return pts - mpctx->audio_speed * ao_get_delay(mpctx->ao);
return pts - ao_get_delay(mpctx->ao);
}
// This garbage is needed for untimed AOs. These consume audio infinitely fast,

3
player/video.c
View File

@ -644,8 +644,9 @@ static void update_av_diff(struct MPContext *mpctx, double offset)
if (mpctx->vo_chain && mpctx->vo_chain->is_sparse)
return;
double a_pos = playing_audio_pts(mpctx);
double a_pos = written_audio_pts(mpctx);
if (a_pos != MP_NOPTS_VALUE && mpctx->video_pts != MP_NOPTS_VALUE) {
a_pos -= mpctx->audio_speed * ao_get_delay(mpctx->ao);
mpctx->last_av_difference = a_pos - mpctx->video_pts
+ opts->audio_delay + offset;
}