Ejemplos de get_dmabuf_surface_allocation_flags en C++ (Cpp)

Ejemplo n.º 1

Archivo: gstvaapipluginbase.c Proyecto: rexxster/gstreamer-vaapi

static inline GstAllocator *
create_dmabuf_srcpad_allocator (GstVaapiPluginBase * plugin,
    GstVideoInfo * vinfo, gboolean check_for_map)
{
  GstAllocator *allocator;

  if (!GST_IS_VIDEO_DECODER (plugin) && !GST_IS_BASE_TRANSFORM (plugin))
    return NULL;

  allocator = gst_vaapi_dmabuf_allocator_new (plugin->display, vinfo,
      get_dmabuf_surface_allocation_flags (), GST_PAD_SRC);
  if (!allocator || !check_for_map)
    return allocator;

  /* the dmabuf allocator *must* be capable to map a buffer with raw
   * caps and the there's no evidence of downstream dmabuf
   * importation */
  if (!gst_vaapi_dmabuf_can_map (plugin->display, allocator)) {
    GST_INFO_OBJECT (plugin, "dmabuf allocator generates unmappable buffers");
    gst_object_replace ((GstObject **) & allocator, NULL);
  }

  return allocator;
}

Ejemplo n.º 2

Archivo: gstvaapipluginbase.c Proyecto: zzoon/gstreamer-vaapi

static gboolean
ensure_srcpad_allocator (GstVaapiPluginBase * plugin, GstVideoInfo * vinfo,
    GstCaps * caps)
{
  gboolean different_caps;
  GstVideoInfo vi;
  GstVaapiImageUsageFlags usage_flag =
      GST_VAAPI_IMAGE_USAGE_FLAG_NATIVE_FORMATS;

  /* the received caps are the "allocation caps" which may be
   * different from the "negotiation caps". In this case, we should
   * indicate the allocator to store the negotiation caps since they
   * are the one should be used for frame mapping with GstVideoMeta */
  different_caps = GST_IS_VIDEO_DECODER (plugin) && plugin->srcpad_caps &&
      !gst_caps_is_strictly_equal (plugin->srcpad_caps, caps);

  if (different_caps) {
    vi = plugin->srcpad_info;
  } else {
    vi = *vinfo;
  }

  if (!reset_allocator (plugin->srcpad_allocator, &vi))
    return TRUE;

  plugin->srcpad_allocator = NULL;
  if (caps && gst_caps_is_video_raw (caps)) {
    if (plugin->srcpad_can_dmabuf) {
      if (GST_IS_VIDEO_DECODER (plugin) || GST_IS_BASE_TRANSFORM (plugin)) {
        plugin->srcpad_allocator =
            gst_vaapi_dmabuf_allocator_new (plugin->display, vinfo,
            get_dmabuf_surface_allocation_flags (), GST_PAD_SRC);
      }
    } else if (plugin->enable_direct_rendering) {
      usage_flag = GST_VAAPI_IMAGE_USAGE_FLAG_DIRECT_RENDER;
      GST_INFO_OBJECT (plugin, "enabling direct rendering in source allocator");
    }
  }

  if (!plugin->srcpad_allocator) {
    plugin->srcpad_allocator =
        gst_vaapi_video_allocator_new (plugin->display, vinfo, 0, usage_flag);
  }

  if (!plugin->srcpad_allocator)
    goto error_create_allocator;

  if (different_caps) {
    guint i, flags = 0;
    const GstVideoInfo *alloc_vi =
        gst_allocator_get_vaapi_video_info (plugin->srcpad_allocator, &flags);
    /* update the planes and the size with the allocator image info,
     * but not the resolution */
    if (alloc_vi) {
      for (i = 0; i < GST_VIDEO_INFO_N_PLANES (alloc_vi); i++) {
        GST_VIDEO_INFO_PLANE_OFFSET (&vi, i) =
            GST_VIDEO_INFO_PLANE_OFFSET (alloc_vi, i);
        GST_VIDEO_INFO_PLANE_STRIDE (&vi, i) =
            GST_VIDEO_INFO_PLANE_STRIDE (alloc_vi, i);
      }
      GST_VIDEO_INFO_SIZE (&vi) = GST_VIDEO_INFO_SIZE (alloc_vi);
      gst_allocator_set_vaapi_video_info (plugin->srcpad_allocator, &vi, flags);
    }
  }

  return TRUE;

  /* ERRORS */
error_create_allocator:
  {
    GST_ERROR_OBJECT (plugin, "failed to create src pad's allocator");
    return FALSE;
  }
}