Exemple #1
0
static GstFlowReturn
gst_vdp_vpp_alloc_output_buffer (GstVdpVideoPostProcess * vpp, GstCaps * caps,
    GstVdpOutputBuffer ** outbuf)
{
  GstFlowReturn ret;

  ret = gst_pad_alloc_buffer_and_set_caps (vpp->srcpad, 0, 0,
      caps, (GstBuffer **) outbuf);
  if (ret != GST_FLOW_OK)
    return ret;

  if (!vpp->device) {
    ret = gst_vdp_vpp_create_mixer (vpp, (*outbuf)->device);
  }

  if (ret != GST_FLOW_OK)
    gst_buffer_unref (GST_BUFFER (*outbuf));
  return ret;
}
Exemple #2
0
static GstFlowReturn
gst_vdp_vpp_chain (GstPad * pad, GstBuffer * buffer)
{
  GstVdpVideoPostProcess *vpp =
      GST_VDP_VIDEO_POST_PROCESS (gst_pad_get_parent (pad));

  GstClockTime qostime;
  GstFlowReturn ret = GST_FLOW_OK;
  GError *err;

  GST_DEBUG ("chain");

  /* can only do QoS if the segment is in TIME */
  if (vpp->segment.format != GST_FORMAT_TIME)
    goto no_qos;

  /* QOS is done on the running time of the buffer, get it now */
  qostime = gst_segment_to_running_time (&vpp->segment, GST_FORMAT_TIME,
      GST_BUFFER_TIMESTAMP (buffer));

  if (qostime != -1) {
    gboolean need_skip;
    GstClockTime earliest_time;

    /* lock for getting the QoS parameters that are set (in a different thread)
     * with the QOS events */
    GST_OBJECT_LOCK (vpp);
    earliest_time = vpp->earliest_time;
    /* check for QoS, don't perform conversion for buffers
     * that are known to be late. */
    need_skip = GST_CLOCK_TIME_IS_VALID (earliest_time) && qostime != -1 &&
        qostime <= earliest_time;

    GST_OBJECT_UNLOCK (vpp);

    if (need_skip) {
      GST_DEBUG_OBJECT (vpp, "skipping transform: qostime %"
          GST_TIME_FORMAT " <= %" GST_TIME_FORMAT,
          GST_TIME_ARGS (qostime), GST_TIME_ARGS (earliest_time));
      /* mark discont for next buffer */
      vpp->discont = TRUE;
      gst_buffer_unref (buffer);
      return GST_FLOW_OK;
    }
  }

no_qos:

  if (vpp->discont) {
    GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
    vpp->discont = FALSE;
  }

  if (G_UNLIKELY (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DISCONT))) {
    GST_DEBUG_OBJECT (vpp, "Received discont buffer");
    gst_vdp_vpp_flush (vpp);
  }

  if (!vpp->native_input) {
    GstVdpVideoBuffer *video_buf;

    err = NULL;
    video_buf =
        (GstVdpVideoBuffer *) gst_vdp_buffer_pool_get_buffer (vpp->vpool, &err);
    if (G_UNLIKELY (!video_buf))
      goto video_buf_error;

    if (!gst_vdp_video_buffer_upload (video_buf, buffer, vpp->fourcc,
            vpp->width, vpp->height)) {
      gst_buffer_unref (GST_BUFFER (video_buf));
      GST_ELEMENT_ERROR (vpp, RESOURCE, READ,
          ("Couldn't upload YUV data to vdpau"), (NULL));
      ret = GST_FLOW_ERROR;
      goto error;
    }

    gst_buffer_copy_metadata (GST_BUFFER (video_buf), buffer,
        GST_BUFFER_COPY_FLAGS | GST_BUFFER_COPY_TIMESTAMPS);

    gst_buffer_unref (buffer);
    buffer = GST_BUFFER (video_buf);
  }

  if (G_UNLIKELY (vpp->mixer == VDP_INVALID_HANDLE)) {
    ret = gst_vdp_vpp_create_mixer (vpp);
    if (ret != GST_FLOW_OK)
      goto error;
  }

  gst_vdp_vpp_add_buffer (vpp, GST_VDP_VIDEO_BUFFER (buffer));

  ret = gst_vdp_vpp_drain (vpp);

done:
  gst_object_unref (vpp);

  return ret;

error:
  gst_buffer_unref (buffer);
  goto done;

video_buf_error:
  gst_buffer_unref (GST_BUFFER (buffer));
  gst_vdp_vpp_post_error (vpp, err);
  ret = GST_FLOW_ERROR;
  goto done;
}