C++ (Cpp) ensure_sinkpad_buffer_pool Examples

Example #1

File: gstvaapipluginbase.c Project: zzoon/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 (!caps)
    goto error_no_caps;

  if (need_pool) {
    if (!ensure_sinkpad_buffer_pool (plugin, caps))
      return FALSE;
    gst_query_add_allocation_pool (query, plugin->sinkpad_buffer_pool,
        plugin->sinkpad_buffer_size, BUFFER_POOL_SINK_MIN_BUFFERS, 0);
    gst_query_add_allocation_param (query, plugin->sinkpad_allocator, NULL);
  }

  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;
  }
}

Example #2

File: gstvaapipluginbase.c Project: zzoon/gstreamer-vaapi

/**
 * gst_vaapi_plugin_base_set_caps:
 * @plugin: a #GstVaapiPluginBase
 * @incaps: the sink pad (input) caps
 * @outcaps: the src pad (output) caps
 *
 * Notifies the base plugin object of the new input and output caps,
 * obtained from the subclass.
 *
 * Returns: %TRUE if the update of caps was successful, %FALSE otherwise.
 */
gboolean
gst_vaapi_plugin_base_set_caps (GstVaapiPluginBase * plugin, GstCaps * incaps,
    GstCaps * outcaps)
{
  if (incaps && incaps != plugin->sinkpad_caps) {
    if (!gst_video_info_from_caps (&plugin->sinkpad_info, incaps))
      return FALSE;
    gst_caps_replace (&plugin->sinkpad_caps, incaps);
    plugin->sinkpad_caps_is_raw = !gst_caps_has_vaapi_surface (incaps);
  }

  if (outcaps && outcaps != plugin->srcpad_caps) {
    if (!gst_video_info_from_caps (&plugin->srcpad_info, outcaps))
      return FALSE;
    if (plugin->srcpad_buffer_pool
        && !gst_vaapi_buffer_pool_caps_is_equal (plugin->srcpad_buffer_pool,
            outcaps)) {
      gst_buffer_pool_set_active (plugin->srcpad_buffer_pool, FALSE);
      g_clear_object (&plugin->srcpad_buffer_pool);
      g_clear_object (&plugin->srcpad_allocator);
      plugin_reset_texture_map (plugin);
    }
    gst_caps_replace (&plugin->srcpad_caps, outcaps);
  }

  if (!ensure_sinkpad_buffer_pool (plugin, plugin->sinkpad_caps))
    return FALSE;
  return TRUE;
}

Example #3

File: gstvaapipluginbase.c Project: 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;
  }
}

Example #4

File: gstvaapipluginbase.c Project: gbeauchesne/gstreamer-vaapi

/**
 * gst_vaapi_plugin_base_set_caps:
 * @plugin: a #GstVaapiPluginBase
 * @incaps: the sink pad (input) caps
 * @outcaps: the src pad (output) caps
 *
 * Notifies the base plugin object of the new input and output caps,
 * obtained from the subclass.
 *
 * Returns: %TRUE if the update of caps was successful, %FALSE otherwise.
 */
gboolean
gst_vaapi_plugin_base_set_caps (GstVaapiPluginBase * plugin, GstCaps * incaps,
    GstCaps * outcaps)
{
  if (incaps && incaps != plugin->sinkpad_caps) {
    gst_caps_replace (&plugin->sinkpad_caps, incaps);
    if (!gst_video_info_from_caps (&plugin->sinkpad_info, incaps))
      return FALSE;
    plugin->sinkpad_caps_changed = TRUE;
    plugin->sinkpad_caps_is_raw = !gst_caps_has_vaapi_surface (incaps);
  }

  if (outcaps && outcaps != plugin->srcpad_caps) {
    gst_caps_replace (&plugin->srcpad_caps, outcaps);
    if (!gst_video_info_from_caps (&plugin->srcpad_info, outcaps))
      return FALSE;
    plugin->srcpad_caps_changed = TRUE;
  }

  if (!ensure_sinkpad_buffer_pool (plugin, plugin->sinkpad_caps))
    return FALSE;
  return TRUE;
}