Function mpa_encode_frame

libavcodec/mpegaudioenc.c:755–788

}

static int mpa_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
                            const AVFrame *frame, int *got_packet_ptr)
{
    MpegAudioContext *s = avctx->priv_data;
    const int16_t *samples = (const int16_t *)frame->data[0];
    short smr[MPA_MAX_CHANNELS][SBLIMIT];
    unsigned char bit_alloc[MPA_MAX_CHANNELS][SBLIMIT];
    int padding, i, ret;

    for(i=0;i<s->nb_channels;i++) {
        filter(s, i, samples + i, s->nb_channels);
    }

    for(i=0;i<s->nb_channels;i++) {
        compute_scale_factors(s, s->scale_code[i], s->scale_factors[i],
                              s->sb_samples[i], s->sblimit);
    }
    for(i=0;i<s->nb_channels;i++) {
        psycho_acoustic_model(s, smr[i]);
    }
    unsigned frame_size = compute_bit_allocation(s, smr, bit_alloc, &padding);

    ret = ff_get_encode_buffer(avctx, avpkt, frame_size, 0);
    if (ret < 0)
        return ret;

    encode_frame(s, avpkt->data, frame_size, bit_alloc, padding);

    if (frame->pts != AV_NOPTS_VALUE)
        avpkt->pts = frame->pts - ff_samples_to_time_base(avctx, avctx->initial_padding);

    *got_packet_ptr = 1;
    return 0;
}

static const FFCodecDefault mp2_defaults[] = {
    { "b", "0" },