diff options
Diffstat (limited to 'DOCS/man/options.rst')
| -rw-r--r-- | DOCS/man/options.rst | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/DOCS/man/options.rst b/DOCS/man/options.rst index f49b5f4f46..6aa3466d0d 100644 --- a/DOCS/man/options.rst +++ b/DOCS/man/options.rst @@ -479,6 +479,16 @@ Playback Control framestep commands are transposed. Backstepping will perform very expensive work to step forward by 1 frame. + - Backward playback in wav files does not work properly (and possibly + similar formats, typically raw audio formats used through libavformat). + This is because libavformat does not align seeks on the packet sizes it + uses. (The packet sizes are arbitrary and chosen by libavformat + internally. Seeks on the other hand are sample-exact, which leads to + overlapping packets if the backward playback state machine seeks back. + This is very complex to work around, so it doesn't attempt to.) + A workaround is to remux to a format like mkv, which enforces packet + boundaries. Making mpv cache the entire file in memory also works. + Tuning: - Remove all ``--vf``/``--af`` filters you have set. Disable deinterlacing. |