add probeaudiostream for get audio stream's codec_name,codec_time_base, sample_fmt,channels and channel_layout. Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
add probeaudiostream for get audio stream's codec_name,codec_time_base, sample_fmt,channels and channel_layout. Signed-off-by: Steven Liu <lq@chinaffmpeg.org>