On Mon, Sep 05, 2016 at 04:43:02PM +0200, Nicolas George wrote: > Le decadi 20 fructidor, an CCXXIV, Marton Balint a écrit : > > The order of the channels to remain unchanged regardless of the input > > channel layout (which is often guessed only). Filtering in ffmpeg is > > unfortunately forcing you to use channel layouts, even if you don't want to, > > even if you only want to say: this track has 2 channels, that stream track > > has 1 channels. Don't assume anything else. > > I feel Carl Eugen has the right of it. >
> libavfilter can work with streams with unknown layouts, but some individual > filters may not. To make them work is relatively easy. First, make sure they > do not use the channel layout: most filters from the fork will use the > channel layout to know the number of channels, we have a separated field for > that. Then declare accordingly the list of formats in query formats. is there some easy way to identify test for filters that require the layout unneccessary ? "git grep av_get_channel_layout_nb_channels" and manual checking ? I might be interrested to help fixing these ... thx [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Never trust a computer, one day, it may think you are the virus. -- Compn
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