I am using avcodec 57.89.100. It is known
<http://wiki.hydrogenaud.io/index.php?title=Gapless_playback> that most of
the mp3 encoders/decoders introduce padding at the beginning or/and end of
the files and I would like to get rid of it when loading mp3 files using
avlib. As I understand from this post
the padding size added in the encoding stage is contained in a dummy frame
at the beginning of the file. However, av_seek_frame() is not retrieving
these frames. Is there a way to obtain this information using the API
functions? Otherwise, is there a way to use a different decoder able to get
rid of these frames internally?

thank you,
Pablo Alonso Jiménez
Music Technology Group
Universitat Pompeu Fabra
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