The error about missing ffmpeg, I got in console was during transferring songs
in flac from local collection, to an iPod (which only support mp3/aac).
It's also show when copying to an other collection, at least when amarok is
executed with --debug option.
After a some code lookup, I think I found the origin of this bug:
In src/core/transcoding/formats/ there is one files per file format supported
with a line like:
"return ffmpegOutput.contains( QRegExp( "^ .EA....*libvorbis" ));"
So, it seem amarok parse the output of "ffmpeg -codecs" (which is
executed by /src/core/transcoding/TranscodingController.cpp) to guess
which file format is supported.
There is two problems:
1. ffmpeg command doesn't exist anymore (libav doesn't provide any
compatibility wrapper), so either amarok or libav-tools should be patched to
make amarok looking for an existing command.
2. The ouput of "ffmpeg -codecs" and "avconv -codecs" differ which break the
regex:
The original ffmpeg put a space before listing available codecs:
" DEA.L. vorbis Vorbis (decoders: vorbis libvorbis ) (encoders:
vorbis libvorbis )"
And avconv on Trusty doesn't:
"DEA.L. vorbis Vorbis (encoders: vorbis libvorbis )"
Maybe amarok is not the only package affected by the switch made by
avconv…
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https://bugs.launchpad.net/bugs/1285729
Title:
amarok lacks transcode support
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