diff options
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diff --git a/DOCS/man/options.rst b/DOCS/man/options.rst index f55b38eb7a..754c2476f8 100644 --- a/DOCS/man/options.rst +++ b/DOCS/man/options.rst @@ -568,6 +568,21 @@ Playback Control depending on the exact conditions. You may have to use the ``--vd-lavc-show-all`` option as well. +``--video-backward-batch=<number>``, ``--audio-backward-batch=<number>`` + Number of keyframe ranges to decode at once when backward decoding (default: + 1 for video, 10 for audio). Another pointless tuning parameter nobody should + use. This should affect performance only. In theory, setting a number higher + than 1 for audio will reduce overhead due to less frequent backstep + operations and less redundant decoding work due to fewer decoded overlap + frames (see ``--audio-backward-overlap``). On the other hand, it requires + a larger reversal buffer, and could make playback less smooth due to + breaking pipelining (e.g. by decoding a lot, and then doing nothing for a + while). + + It probably never makes sense to set ``--video-backward-batch``. But in + theory, it could help with intra-only video codecs by reducing backstep + operations. + ``--demuxer-backward-playback-step=<seconds>`` Number of seconds the demuxer should seek back to get new packets during backward playback (default: 60). This is useful for tuning backward |