Function X264_frame

libavcodec/libx264.c:609–740

}

static int X264_frame(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame,
                      int *got_packet)
{
    X264Context *x4 = ctx->priv_data;
    x264_nal_t *nal;
    int nnal, ret;
    x264_picture_t pic_out = {0}, *pic_in;
    enum AVPictureType pict_type;
    int64_t wallclock = 0;
    X264Opaque *out_opaque;

    ret = setup_frame(ctx, frame, &pic_in);
    if (ret < 0)
        return ret;

    do {
        if (x264_encoder_encode(x4->enc, &nal, &nnal, pic_in, &pic_out) < 0)
            return AVERROR_EXTERNAL;

        if (nnal && (ctx->flags & AV_CODEC_FLAG_RECON_FRAME)) {
            AVCodecInternal *avci = ctx->internal;

            av_frame_unref(avci->recon_frame);

            avci->recon_frame->format = csp_to_pixfmt(pic_out.img.i_csp);
            if (avci->recon_frame->format == AV_PIX_FMT_NONE) {
                av_log(ctx, AV_LOG_ERROR,
                       "Unhandled reconstructed frame colorspace: %d\n",
                       pic_out.img.i_csp);
                return AVERROR(ENOSYS);
            }

            avci->recon_frame->width  = ctx->width;
            avci->recon_frame->height = ctx->height;
            for (int i = 0; i < pic_out.img.i_plane; i++) {
                avci->recon_frame->data[i]     = pic_out.img.plane[i];
                avci->recon_frame->linesize[i] = pic_out.img.i_stride[i];
            }

            ret = av_frame_make_writable(avci->recon_frame);
            if (ret < 0) {
                av_frame_unref(avci->recon_frame);
                return ret;
            }
        }

        ret = encode_nals(ctx, pkt, nal, nnal);
        if (ret < 0)
            return ret;
    } while (!ret && !frame && x264_encoder_delayed_frames(x4->enc));

    if (!ret)
        return 0;

    pkt->pts = pic_out.i_pts;
    pkt->dts = pic_out.i_dts;

    out_opaque = pic_out.opaque;