[FFmpeg-devel] [RFC] flvenc: missing aac extradata

[Björn Axelsson]

Problem found when remuxing mpegts (h264 + aac) to flv across pipes,
like this:
ffmpeg -f mpegts -i - -absf aac_adtstoasc -acodec copy -vcodec copy -f flv -

The AAC extradata is needed for the FLV header in flv_write_header(),
but is not available at that time. This results in unusable audio in the
resulting FLV stream.

We currently use something like the attached patch as a workaround, but
I'm sure someone can point me towards a better solution.

-- 
Björn Axelsson                    Phone: +46-(0)90-349 39 02
Intinor AB                          Fax: +46-(0)90-349 39 04
www.intinor.se                   Mobile: +46-(0)70-397 04 17
Broadcast Video & Digital Media Distribution
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