thanks antou, this is the output:
Code:
Duration: 00:00:38.07, start: 0.000000, bitrate: 128 kb/s
Stream #0.0: Audio: mp3, 44100 Hz, stereo, s16, 128 kb/s
File 'out.mp3' already exists. Overwrite ? [y/N] y
Output #0, mp3, to 'out.mp3':
Stream #0.0: Audio: [0][0][0][0] / 0x0000, 44100 Hz, stereo, s16, 200 kb/s
Stream mapping:
Stream #0.0 -> #0.0
Encoder (codec id 86017) not found for output stream #0.0