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Wed Nov 4 15:05:12 CET 2009

ffmpeg external codecs

does ffmpeg have an mp3 encoder?
no : use lame

ac3, aac, vorbis are built-in

apparently all configuration data is stored in the AVContext struct.
the ffmpeg code is quite error prone..  a bit of abstraction around it
won't hurt.

next: write encoded audio to buffer. there is no data structure for
audio - just a flat array of short int.


int avcodec_encode_audio(AVCodecContext *avctx,
                         uint8_t *buf,
                         int buf_size,
                         const short *samples);



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