Список задач

Член av_samples_alloc (uint8_t **audio_data, int *linesize, int nb_channels, int nb_samples, enum AVSampleFormat sample_fmt, int align)

return the size of the allocated buffer in case of success at the next bump

Член av_samples_fill_arrays (uint8_t **audio_data, int *linesize, const uint8_t *buf, int nb_channels, int nb_samples, enum AVSampleFormat sample_fmt, int align)

return minimum size in bytes required for the buffer in case of success at the next bump

Член avcodec_fill_audio_frame (AVFrame *frame, int nb_channels, enum AVSampleFormat sample_fmt, const uint8_t *buf, int buf_size, int align)

return the size in bytes required to store the samples in case of success, at the next libavutil bump

Член avformat_find_stream_info (AVFormatContext *ic, AVDictionary **options)

Let the user decide somehow what information is needed so that we do not waste time getting stuff the user does not need.

Член AVOption::help

What about other languages?