[FFmpeg-devel] [RFC] Channels

Michael Niedermayer michael at niedermayer.cc
Fri Mar 22 04:25:25 EET 2024


Hi all

we have code like
st->codecpar->ch_layout.nb_channels = avio_rb32(pb);

and then somewhere there is some code that uses this by first allocating
an array and that then hits OOM
(it was this here:
    map = av_calloc(nb_channels, sizeof(*channel_layout->u.map));)

is anyone against adding a max_channels field to AVFormatContext  or something
like that ?

alternative is "wont fix" for all such cases, or maybe someone sees another way ?

thx

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

It is what and why we do it that matters, not just one of them.
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