diff options
Diffstat (limited to 'player/playloop.c')
| -rw-r--r-- | player/playloop.c | 47 |
1 files changed, 41 insertions, 6 deletions
diff --git a/player/playloop.c b/player/playloop.c index 3db5818773..535bff883f 100644 --- a/player/playloop.c +++ b/player/playloop.c @@ -239,6 +239,7 @@ void reset_playback_state(struct MPContext *mpctx) mpctx->restart_complete = false; mpctx->paused_for_cache = false; mpctx->cache_buffer = 100; + mpctx->seek_slave = NULL; #if HAVE_ENCODING encode_lavc_discontinuity(mpctx->encode_lavc_ctx); @@ -252,7 +253,7 @@ static void mp_seek(MPContext *mpctx, struct seek_params seek) { struct MPOpts *opts = mpctx->opts; - if (!mpctx->demuxer || seek.type == MPSEEK_NONE || seek.amount == MP_NOPTS_VALUE) + if (!mpctx->demuxer || !seek.type || seek.amount == MP_NOPTS_VALUE) return; bool hr_seek_very_exact = seek.exact == MPSEEK_VERY_EXACT; @@ -326,13 +327,15 @@ static void mp_seek(MPContext *mpctx, struct seek_params seek) if (!demux_seek(mpctx->demuxer, demux_pts, demux_flags)) { if (!mpctx->demuxer->seekable) { - MP_ERR(mpctx, "Cannot seek in this file.\n"); + MP_ERR(mpctx, "Cannot seek in this stream.\n"); MP_ERR(mpctx, "You can force it with '--force-seekable=yes'.\n"); } return; } // Seek external, extra files too: + bool has_video = false; + struct track *external_audio = NULL; for (int t = 0; t < mpctx->num_tracks; t++) { struct track *track = mpctx->tracks[t]; if (track->selected && track->is_external && track->demuxer) { @@ -342,7 +345,12 @@ static void mp_seek(MPContext *mpctx, struct seek_params seek) if (demux_flags & SEEK_FACTOR) main_new_pos = seek_pts; demux_seek(track->demuxer, main_new_pos, 0); + if (track->type == STREAM_AUDIO && !external_audio) + external_audio = track; } + if (track->selected && !track->is_external && track->stream && + track->type == STREAM_VIDEO && !track->stream->attached_picture) + has_video = true; } if (!(seek.flags & MPSEEK_FLAG_NOFLUSH)) @@ -352,6 +360,17 @@ static void mp_seek(MPContext *mpctx, struct seek_params seek) if (mpctx->recorder) mp_recorder_mark_discontinuity(mpctx->recorder); + // When doing keyframe seeks (hr_seek=false) backwards (no SEEK_FORWARD), + // then video can seek before the external audio track (because video seek + // granularity is coarser than audio). The result would be playing video with + // silence until the audio seek target is reached. Work around by blocking + // the demuxer (decoders can't read) and seeking to video position later. + if (has_video && external_audio && !hr_seek && !(demux_flags & SEEK_FORWARD)) { + MP_VERBOSE(mpctx, "delayed seek for aid=%d\n", external_audio->user_tid); + demux_block_reading(external_audio->demuxer, true); + mpctx->seek_slave = external_audio; + } + /* Use the target time as "current position" for further relative * seeks etc until a new video frame has been decoded */ mpctx->last_seek_pts = seek_pts; @@ -376,9 +395,6 @@ static void mp_seek(MPContext *mpctx, struct seek_params seek) mp_notify(mpctx, MPV_EVENT_SEEK, NULL); mp_notify(mpctx, MPV_EVENT_TICK, NULL); - mpctx->audio_allow_second_chance_seek = - !hr_seek && !(demux_flags & SEEK_FORWARD); - mpctx->ab_loop_clip = mpctx->last_seek_pts < opts->ab_loop[1]; mpctx->current_seek = seek; @@ -949,6 +965,24 @@ static void handle_playback_time(struct MPContext *mpctx) } } +static void handle_delayed_audio_seek(struct MPContext *mpctx) +{ + if (mpctx->seek_slave) { + if (mpctx->video_pts != MP_NOPTS_VALUE) { + // We know the video position now, so seek external audio to the + // correct position. + double pts = mpctx->video_pts + + get_track_seek_offset(mpctx, mpctx->seek_slave); + demux_seek(mpctx->seek_slave->demuxer, pts, 0); + mpctx->seek_slave = NULL; + } else if (mpctx->video_status >= STATUS_EOF) { + // We won't get a video position; don't stall the audio stream. + demux_block_reading(mpctx->seek_slave->demuxer, false); + mpctx->seek_slave = NULL; + } + } +} + // We always make sure audio and video buffers are filled before actually // starting playback. This code handles starting them at the same time. static void handle_playback_restart(struct MPContext *mpctx) @@ -991,7 +1025,6 @@ static void handle_playback_restart(struct MPContext *mpctx) mpctx->hrseek_active = false; mpctx->restart_complete = true; mpctx->current_seek = (struct seek_params){0}; - mpctx->audio_allow_second_chance_seek = false; handle_playback_time(mpctx); mp_notify(mpctx, MPV_EVENT_PLAYBACK_RESTART, NULL); update_core_idle_state(mpctx); @@ -1099,6 +1132,8 @@ void run_playloop(struct MPContext *mpctx) fill_audio_out_buffers(mpctx); write_video(mpctx); + handle_delayed_audio_seek(mpctx); + handle_playback_restart(mpctx); handle_playback_time(mpctx); |