static int g726_decode_frame(AVCodecContext *avctx,
                             void *data, int *data_size,
                             AVPacket *avpkt)
{
    const uint8_t *buf = avpkt->data;
    int buf_size = avpkt->size;
    G726Context *c = avctx->priv_data;
    int16_t *samples = data;
    GetBitContext gb;

    init_get_bits(&gb, buf, buf_size * 8);

    while (get_bits_count(&gb) + c->code_size <= buf_size*8)
        *samples++ = g726_decode(c, get_bits(&gb, c->code_size));

    if(buf_size*8 != get_bits_count(&gb))
        av_log(avctx, AV_LOG_ERROR, "Frame invalidly split, missing parser?\n");

    *data_size = (uint8_t*)samples - (uint8_t*)data;
    return buf_size;
}