Function init_fifo

doc/examples/transcode_aac.c:330–339

* Initialize a FIFO buffer for the audio samples to be encoded. * @param[out] fifo Sample buffer * @param output_codec_context Codec context of the output file * @return Error code (0 if successful) */

 * @return Error code (0 if successful)
 */
static int init_fifo(AVAudioFifo **fifo, AVCodecContext *output_codec_context)
{
    /* Create the FIFO buffer based on the specified output sample format. */
    if (!(*fifo = av_audio_fifo_alloc(output_codec_context->sample_fmt,
                                      output_codec_context->ch_layout.nb_channels, 1))) {
        fprintf(stderr, "Could not allocate FIFO\n");
        return AVERROR(ENOMEM);
    }
    return 0;
}

/**
 * Write the header of the output file container.