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| -rw-r--r-- | doc/ffmpeg.texi | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/doc/ffmpeg.texi b/doc/ffmpeg.texi index 9feabe6517..7827291755 100644 --- a/doc/ffmpeg.texi +++ b/doc/ffmpeg.texi @@ -759,6 +759,16 @@ This option is similar to @option{-filter}, the only difference is that its argument is the name of the file from which a filtergraph description is to be read. +@item -reinit_filter[:@var{stream_specifier}] @var{integer} (@emph{input,per-stream}) +This boolean option determines if the filtergraph(s) to which this stream is fed gets +reinitialized when input frame parameters change mid-stream. This option is enabled by +default as most video and all audio filters cannot handle deviation in input frame properties. +Upon reinitialization, existing filter state is lost, like e.g. the frame count @code{n} +reference available in some filters. Any frames buffered at time of reinitialization are lost. +The properties where a change triggers reinitialization are, +for video, frame resolution or pixel format; +for audio, sample format, sample rate, channel count or channel layout. + @item -filter_threads @var{nb_threads} (@emph{global}) Defines how many threads are used to process a filter pipeline. Each pipeline will produce a thread pool with this many threads available for parallel processing. |