Exemplos de plugin_update_sinkpad_info_from_buffer em C++ (Cpp)

Exemplo n.º 1

Arquivo: gstvaapipluginbase.c Projeto: zzoon/gstreamer-vaapi

static gboolean
plugin_bind_dma_to_vaapi_buffer (GstVaapiPluginBase * plugin,
    GstBuffer * inbuf, GstBuffer * outbuf)
{
  GstVideoInfo *const vip = &plugin->sinkpad_info;
  GstVaapiVideoMeta *meta;
  GstVaapiSurface *surface;
  GstVaapiSurfaceProxy *proxy;
  gint fd;

  fd = gst_dmabuf_memory_get_fd (gst_buffer_peek_memory (inbuf, 0));
  if (fd < 0)
    return FALSE;

  if (!plugin_update_sinkpad_info_from_buffer (plugin, inbuf))
    goto error_update_sinkpad_info;

  meta = gst_buffer_get_vaapi_video_meta (outbuf);
  g_return_val_if_fail (meta != NULL, FALSE);

  /* Check for a VASurface cached in the buffer */
  surface = _get_cached_surface (inbuf);
  if (!surface) {
    /* otherwise create one and cache it */
    surface =
        gst_vaapi_surface_new_with_dma_buf_handle (plugin->display, fd, vip);
    if (!surface)
      goto error_create_surface;
    _set_cached_surface (inbuf, surface);
  }

  proxy = gst_vaapi_surface_proxy_new (surface);
  if (!proxy)
    goto error_create_proxy;
  gst_vaapi_video_meta_set_surface_proxy (meta, proxy);
  gst_vaapi_surface_proxy_unref (proxy);
  gst_buffer_add_parent_buffer_meta (outbuf, inbuf);
  return TRUE;

  /* ERRORS */
error_update_sinkpad_info:
  {
    GST_ERROR_OBJECT (plugin,
        "failed to update sink pad video info from video meta");
    return FALSE;
  }
error_create_surface:
  {
    GST_ERROR_OBJECT (plugin,
        "failed to create VA surface from dma_buf handle");
    return FALSE;
  }
error_create_proxy:
  {
    GST_ERROR_OBJECT (plugin,
        "failed to create VA surface proxy from wrapped VA surface");
    return FALSE;
  }
}

Exemplo n.º 2

Arquivo: gstvaapipluginbase.c Projeto: gbeauchesne/gstreamer-vaapi

static gboolean
plugin_bind_dma_to_vaapi_buffer (GstVaapiPluginBase * plugin,
    GstBuffer * inbuf, GstBuffer * outbuf)
{
  GstVideoInfo *const vip = &plugin->sinkpad_info;
  GstVaapiVideoMeta *meta;
  GstVaapiSurface *surface;
  GstVaapiSurfaceProxy *proxy;
  gint fd;

  fd = gst_dmabuf_memory_get_fd (gst_buffer_peek_memory (inbuf, 0));
  if (fd < 0)
    return FALSE;

  if (!plugin_update_sinkpad_info_from_buffer (plugin, inbuf))
    goto error_update_sinkpad_info;

  meta = gst_buffer_get_vaapi_video_meta (outbuf);
  g_return_val_if_fail (meta != NULL, FALSE);

  surface = gst_vaapi_surface_new_with_dma_buf_handle (plugin->display, fd,
      GST_VIDEO_INFO_SIZE (vip), GST_VIDEO_INFO_FORMAT (vip),
      GST_VIDEO_INFO_WIDTH (vip), GST_VIDEO_INFO_HEIGHT (vip),
      vip->offset, vip->stride);
  if (!surface)
    goto error_create_surface;

  proxy = gst_vaapi_surface_proxy_new (surface);
  gst_vaapi_object_unref (surface);
  if (!proxy)
    goto error_create_proxy;

  gst_vaapi_surface_proxy_set_destroy_notify (proxy,
      (GDestroyNotify) gst_buffer_unref, (gpointer) gst_buffer_ref (inbuf));
  gst_vaapi_video_meta_set_surface_proxy (meta, proxy);
  gst_vaapi_surface_proxy_unref (proxy);
  return TRUE;

  /* ERRORS */
error_update_sinkpad_info:
  GST_ERROR ("failed to update sink pad video info from video meta");
  return FALSE;
error_create_surface:
  GST_ERROR ("failed to create VA surface from dma_buf handle");
  return FALSE;
error_create_proxy:
  GST_ERROR ("failed to create VA surface proxy from wrapped VA surface");
  return FALSE;
}