C++ (Cpp) has_dmabuf_capable_peer Beispiele

Beispiel #1

Datei: gstvaapipluginbase.c Projekt: rexxster/gstreamer-vaapi

static gboolean
ensure_sinkpad_allocator (GstVaapiPluginBase * plugin, GstCaps * caps,
    guint * size)
{
  GstVideoInfo vinfo;
  const GstVideoInfo *image_info;
  GstVaapiImageUsageFlags usage_flag =
      GST_VAAPI_IMAGE_USAGE_FLAG_NATIVE_FORMATS;

  if (!gst_video_info_from_caps (&vinfo, caps))
    goto error_invalid_caps;

  if (!reset_allocator (plugin->sinkpad_allocator, &vinfo))
    goto bail;

  if (has_dmabuf_capable_peer (plugin, plugin->sinkpad)) {
    plugin->sinkpad_allocator =
        gst_vaapi_dmabuf_allocator_new (plugin->display, &vinfo,
        GST_VAAPI_SURFACE_ALLOC_FLAG_LINEAR_STORAGE, GST_PAD_SINK);
    goto bail;
  }

  /* enable direct upload if upstream requests raw video */
  if (gst_caps_is_video_raw (caps)) {
    usage_flag = GST_VAAPI_IMAGE_USAGE_FLAG_DIRECT_UPLOAD;
    GST_INFO_OBJECT (plugin, "enabling direct upload in sink allocator");
  }
  plugin->sinkpad_allocator =
      gst_vaapi_video_allocator_new (plugin->display, &vinfo, 0, usage_flag);

bail:
  if (!plugin->sinkpad_allocator)
    goto error_create_allocator;

  image_info =
      gst_allocator_get_vaapi_video_info (plugin->sinkpad_allocator, NULL);
  g_assert (image_info);        /* allocator ought set its image info */

  /* update the size with the one generated by the allocator */
  *size = GST_VIDEO_INFO_SIZE (image_info);

  return TRUE;

  /* ERRORS */
error_invalid_caps:
  {
    GST_ERROR_OBJECT (plugin, "invalid caps %" GST_PTR_FORMAT, caps);
    return FALSE;
  }
error_create_allocator:
  {
    GST_ERROR_OBJECT (plugin, "failed to create sink pad's allocator");
    return FALSE;
  }
}

Beispiel #2

Datei: gstvaapipluginbase.c Projekt: gbeauchesne/gstreamer-vaapi

/**
 * gst_vaapi_plugin_base_propose_allocation:
 * @plugin: a #GstVaapiPluginBase
 * @query: the allocation query to configure
 *
 * Proposes allocation parameters to the upstream elements.
 *
 * Returns: %TRUE if successful, %FALSE otherwise.
 */
gboolean
gst_vaapi_plugin_base_propose_allocation (GstVaapiPluginBase * plugin,
    GstQuery * query)
{
  GstCaps *caps = NULL;
  gboolean need_pool;

  gst_query_parse_allocation (query, &caps, &need_pool);

  if (need_pool) {
    if (!caps)
      goto error_no_caps;
    if (!ensure_sinkpad_buffer_pool (plugin, caps))
      return FALSE;
    gst_query_add_allocation_pool (query, plugin->sinkpad_buffer_pool,
        plugin->sinkpad_buffer_size, 0, 0);

    if (has_dmabuf_capable_peer (plugin, plugin->sinkpad)) {
      GstStructure *const config =
          gst_buffer_pool_get_config (plugin->sinkpad_buffer_pool);

      gst_buffer_pool_config_add_option (config,
          GST_BUFFER_POOL_OPTION_DMABUF_MEMORY);
      if (!gst_buffer_pool_set_config (plugin->sinkpad_buffer_pool, config))
        goto error_pool_config;
    }
  }

  gst_query_add_allocation_meta (query, GST_VAAPI_VIDEO_META_API_TYPE, NULL);
  gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
  return TRUE;

  /* ERRORS */
error_no_caps:
  {
    GST_INFO_OBJECT (plugin, "no caps specified");
    return FALSE;
  }
error_pool_config:
  {
    GST_ERROR_OBJECT (plugin, "failed to reset buffer pool config");
    return FALSE;
  }
}