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| author | wm4 <wm4@nowhere> | 2020-05-23 04:04:46 +0200 |
|---|---|---|
| committer | wm4 <wm4@nowhere> | 2020-05-23 04:04:46 +0200 |
| commit | ab4e0c42fbb11f2e7459fe9fe98265e0323b1ef4 (patch) | |
| tree | 8d202d9a8d7aecf3f305c0311d5115b46ba009d9 /DOCS/man | |
| parent | 43a67970b6c17f8d0525f90fac25923cd4a989bf (diff) | |
| download | mpv-ab4e0c42fbb11f2e7459fe9fe98265e0323b1ef4.tar.bz2 mpv-ab4e0c42fbb11f2e7459fe9fe98265e0323b1ef4.tar.xz | |
audio: redo video-sync=display-adrop
This mode drops or repeats audio data to adapt to video speed, instead
of resampling it or such. It was added to deal with SPDIF. The
implementation was part of fill_audio_out_buffers() - the entire
function is something whose complexity exploded in my face, and which I
want to clean up, and this is hopefully a first step.
Put it in a filter, and mess with the shitty glue code. It's all sort of
roundabout and illogical, but that can be rectified later. The important
part is that it works much like the resample or scaletempo filters.
For PCM audio, this does not work on samples anymore. This makes it much
worse. But for PCM you can use saner mechanisms that sound better. Also,
something about PTS tracking is wrong. But not wasting more time on
this.
Diffstat (limited to 'DOCS/man')
| -rw-r--r-- | DOCS/man/af.rst | 7 | ||||
| -rw-r--r-- | DOCS/man/options.rst | 3 |
2 files changed, 9 insertions, 1 deletions
diff --git a/DOCS/man/af.rst b/DOCS/man/af.rst index aebf76431a..5c2b066a6b 100644 --- a/DOCS/man/af.rst +++ b/DOCS/man/af.rst @@ -220,3 +220,10 @@ Available filters are: broken filters. In practice, these broken filters will either cause slow A/V desync over time (with some files), or break playback completely if you seek or start playback from the middle of a file. + +``drop`` + This filter drops or repeats audio frames to adapt to playback speed. It + always operates on full audio frames, because it was made to handle SPDIF + (compressed audio passthrough). This is used automatically if the + ``--video-sync=display-adrop`` option is used. Do not use this filter (or + the given option); they are extremely low quality. diff --git a/DOCS/man/options.rst b/DOCS/man/options.rst index 370723aadb..4ed5944956 100644 --- a/DOCS/man/options.rst +++ b/DOCS/man/options.rst @@ -6403,7 +6403,8 @@ Miscellaneous video. See ``--video-sync-adrop-size``. This mode will cause severe audio artifacts if the real monitor refresh rate is too different from the reported or - forced rate. + forced rate. Sicne mpv 0.33.0, this acts on entire audio + frames, instead of single samples. :display-desync: Sync video to display, and let audio play on its own. :desync: Sync video according to system clock, and let audio play on its own. |