Function liboapve_encode

libavcodec/liboapvenc.c:478–533

* Encode raw data frame into APV packet * * @param[in] avctx codec context * @param[out] avpkt output AVPacket containing encoded data * @param[in] frame AVFrame containing the raw data to be encoded * @param[out] got_packet encoder sets to 0 or 1 to indicate that a * non-empty packet was returned in pkt * * @return 0 on success, negative error code on fai

  * @return 0 on success, negative error code on failure
  */
static int liboapve_encode(AVCodecContext *avctx, AVPacket *avpkt,
                          const AVFrame *frame, int *got_packet)
{
    ApvEncContext *apv =  avctx->priv_data;
    const oapve_cdesc_t *cdsc = &apv->cdsc;
    oapv_frm_t *frm = &apv->ifrms.frm[FRM_IDX];
    oapv_imgb_t *imgb = frm->imgb;
    int ret;

    if (avctx->width != frame->width || avctx->height != frame->height || avctx->pix_fmt != frame->format) {
        av_log(avctx, AV_LOG_ERROR, "Dimension changes are not supported\n");
        return AVERROR(EINVAL);
    }

    av_image_copy((uint8_t **)imgb->a, imgb->s, (const uint8_t **)frame->data, frame->linesize,
                  frame->format, frame->width, frame->height);

    imgb->ts[0] = frame->pts;

    frm->group_id = 1; // @todo FIX-ME : need to set properly in case of multi-frame
    frm->pbu_type = OAPV_PBU_TYPE_PRIMARY_FRAME;

    ret = oapve_encode(apv->id, &apv->ifrms, apv->mid, &apv->bitb, &apv->stat, NULL);
    if (OAPV_FAILED(ret)) {
        av_log(avctx, AV_LOG_ERROR, "oapve_encode() failed\n");
        return AVERROR_EXTERNAL;
    }

    /* store bitstream */
    if (OAPV_SUCCEEDED(ret) && apv->stat.write > 0) {
        uint8_t *data = apv->bitb.addr;
        int size = apv->stat.write;

        // The encoder may return a "Raw bitstream" formatted AU, including au_size.
        // Discard it as we only need the access_unit() structure.
        if (size > 4 && AV_RB32(data) != APV_SIGNATURE) {
            data += 4;
            size -= 4;
        }

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

        memcpy(avpkt->data, data, size);
        avpkt->pts = avpkt->dts = frame->pts;
        avpkt->flags |= AV_PKT_FLAG_KEY;

        if (cdsc->param[FRM_IDX].qp)
            ff_encode_add_stats_side_data(avpkt, cdsc->param[FRM_IDX].qp * FF_QP2LAMBDA, NULL, 0, AV_PICTURE_TYPE_I);

        *got_packet = 1;
    }

    return 0;
}

/**