Exemplo n.º 1
0
gboolean
gst_vulkan_device_handle_context_query (GstElement * element, GstQuery * query,
    GstVulkanDevice ** device)
{
  gboolean res = FALSE;
  const gchar *context_type;
  GstContext *context, *old_context;

  g_return_val_if_fail (element != NULL, FALSE);
  g_return_val_if_fail (query != NULL, FALSE);
  g_return_val_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_CONTEXT, FALSE);
  g_return_val_if_fail (device != NULL, FALSE);

  gst_query_parse_context_type (query, &context_type);

  if (g_strcmp0 (context_type, GST_VULKAN_DEVICE_CONTEXT_TYPE_STR) == 0) {
    gst_query_parse_context (query, &old_context);

    if (old_context)
      context = gst_context_copy (old_context);
    else
      context = gst_context_new (GST_VULKAN_DEVICE_CONTEXT_TYPE_STR, TRUE);

    gst_context_set_vulkan_device (context, *device);
    gst_query_set_context (query, context);
    gst_context_unref (context);

    res = *device != NULL;
  }

  return res;
}
Exemplo n.º 2
0
gboolean
gst_gl_handle_context_query (GstElement * element, GstQuery * query,
    GstGLDisplay ** display)
{
  gboolean res = FALSE;
  const gchar *context_type;
  GstContext *context, *old_context;

  g_return_val_if_fail (element != NULL, FALSE);
  g_return_val_if_fail (query != NULL, FALSE);
  g_return_val_if_fail (display != NULL, FALSE);

  gst_query_parse_context_type (query, &context_type);

  if (g_strcmp0 (context_type, GST_GL_DISPLAY_CONTEXT_TYPE) == 0) {

    gst_query_parse_context (query, &old_context);

    if (old_context)
      context = gst_context_copy (old_context);
    else
      context = gst_context_new (GST_GL_DISPLAY_CONTEXT_TYPE, TRUE);

    gst_context_set_gl_display (context, *display);
    gst_query_set_context (query, context);
    gst_context_unref (context);

    res = *display != NULL;
  }

  return res;
}
static GstStateChangeReturn
gst_context_element_change_state (GstElement * element,
    GstStateChange transition)
{
  GstContextElement *celement = (GstContextElement *) element;

  if (transition == GST_STATE_CHANGE_NULL_TO_READY) {
    GstContext *context;
    GstMessage *msg;
    gboolean have_foobar = celement->have_foobar;

    if (celement->set_before_ready && !have_foobar)
      return GST_STATE_CHANGE_FAILURE;
    else if (celement->set_before_ready)
      return
          GST_ELEMENT_CLASS (gst_context_element_parent_class)->change_state
          (element, transition);

    if (celement->set_from_need_context && have_foobar)
      return GST_STATE_CHANGE_FAILURE;

    if (!have_foobar) {
      /* Here we would first query downstream for a context but we have no pads */
      msg = gst_message_new_need_context (GST_OBJECT (element), "foobar");
      gst_element_post_message (element, msg);

      have_foobar = celement->have_foobar;
    }

    if (celement->set_from_need_context && !have_foobar)
      return GST_STATE_CHANGE_FAILURE;
    else if (celement->set_from_need_context)
      return
          GST_ELEMENT_CLASS (gst_context_element_parent_class)->change_state
          (element, transition);

    if (celement->create_self && have_foobar)
      return GST_STATE_CHANGE_FAILURE;

    if (!have_foobar) {
      context = gst_context_new ("foobar", FALSE);
      gst_element_set_context (element, context);
      msg =
          gst_message_new_have_context (GST_OBJECT (element),
          gst_context_ref (context));
      gst_element_post_message (element, msg);
      gst_context_unref (context);
    }
    return
        GST_ELEMENT_CLASS (gst_context_element_parent_class)->change_state
        (element, transition);
  }

  return
      GST_ELEMENT_CLASS (gst_context_element_parent_class)->change_state
      (element, transition);
}
static gboolean
gst_gl_base_mixer_src_query (GstAggregator * agg, GstQuery * query)
{
    gboolean res = FALSE;
    GstGLBaseMixer *mix = GST_GL_BASE_MIXER (agg);
    GstGLBaseMixerClass *mix_class = GST_GL_BASE_MIXER_GET_CLASS (mix);

    switch (GST_QUERY_TYPE (query)) {
    case GST_QUERY_CONTEXT:
    {
        const gchar *context_type;
        GstContext *context, *old_context;

        res = gst_gl_handle_context_query ((GstElement *) mix, query,
                                           &mix->display, &mix->priv->other_context);
        if (mix->display)
            gst_gl_display_filter_gl_api (mix->display,
                                          mix_class->supported_gl_api);
        gst_query_parse_context_type (query, &context_type);

        if (g_strcmp0 (context_type, "gst.gl.local_context") == 0) {
            GstStructure *s;

            gst_query_parse_context (query, &old_context);

            if (old_context)
                context = gst_context_copy (old_context);
            else
                context = gst_context_new ("gst.gl.local_context", FALSE);

            s = gst_context_writable_structure (context);
            gst_structure_set (s, "context", GST_GL_TYPE_CONTEXT, mix->context,
                               NULL);
            gst_query_set_context (query, context);
            gst_context_unref (context);

            res = mix->context != NULL;
        }
        GST_LOG_OBJECT (mix, "context query of type %s %i", context_type, res);

        if (res)
            return res;

        break;
    }
    default:
        break;
    }

    return GST_AGGREGATOR_CLASS (parent_class)->src_query (agg, query);
}
Exemplo n.º 5
0
static gboolean
gst_gtk_gl_sink_query (GstBaseSink * bsink, GstQuery * query)
{
    GstGtkGLSink *gtk_sink = GST_GTK_GL_SINK (bsink);
    gboolean res = FALSE;

    switch (GST_QUERY_TYPE (query)) {
    case GST_QUERY_CONTEXT:
    {
        const gchar *context_type;
        GstContext *context, *old_context;

        res = gst_gl_handle_context_query ((GstElement *) gtk_sink, query,
                                           &gtk_sink->display, &gtk_sink->gtk_context);

        if (gtk_sink->display)
            gst_gl_display_filter_gl_api (gtk_sink->display, GST_GL_API_OPENGL3);

        gst_query_parse_context_type (query, &context_type);

        if (g_strcmp0 (context_type, "gst.gl.local_context") == 0) {
            GstStructure *s;

            gst_query_parse_context (query, &old_context);

            if (old_context)
                context = gst_context_copy (old_context);
            else
                context = gst_context_new ("gst.gl.local_context", FALSE);

            s = gst_context_writable_structure (context);
            gst_structure_set (s, "context", GST_GL_TYPE_CONTEXT, gtk_sink->context,
                               NULL);
            gst_query_set_context (query, context);
            gst_context_unref (context);

            res = gtk_sink->context != NULL;
        }
        GST_LOG_OBJECT (gtk_sink, "context query of type %s %i", context_type,
                        res);
        break;
    }
    default:
        res = GST_BASE_SINK_CLASS (parent_class)->query (bsink, query);
        break;
    }

    return res;
}
Exemplo n.º 6
0
static gboolean
stereosplit_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
{
  GstGLStereoSplit *split = GST_GL_STEREOSPLIT (parent);

  switch (GST_QUERY_TYPE (query)) {
    case GST_QUERY_CONTEXT:
    {
      const gchar *context_type;
      GstContext *context, *old_context;
      gboolean ret;

      ret = gst_gl_handle_context_query ((GstElement *) split, query,
          &split->display, &split->other_context);
      if (split->display)
        gst_gl_display_filter_gl_api (split->display, SUPPORTED_GL_APIS);
      gst_query_parse_context_type (query, &context_type);

      if (g_strcmp0 (context_type, "gst.gl.local_context") == 0) {
        GstStructure *s;

        gst_query_parse_context (query, &old_context);

        if (old_context)
          context = gst_context_copy (old_context);
        else
          context = gst_context_new ("gst.gl.local_context", FALSE);

        s = gst_context_writable_structure (context);
        gst_structure_set (s, "context", GST_GL_TYPE_CONTEXT, split->context,
            NULL);
        gst_query_set_context (query, context);
        gst_context_unref (context);

        ret = split->context != NULL;
      }
      GST_LOG_OBJECT (split, "context query of type %s %i", context_type, ret);

      if (ret)
        return ret;

      return gst_pad_query_default (pad, parent, query);
    }
      /* FIXME: Handle caps query */
    default:
      return gst_pad_query_default (pad, parent, query);
  }
}
static GstBusSyncReply
sync_handler (GstBus * bus, GstMessage * message, gpointer user_data)
{
  if (GST_MESSAGE_TYPE (message) == GST_MESSAGE_NEED_CONTEXT) {
    const gchar *type;
    GstElement *element = GST_ELEMENT (GST_MESSAGE_SRC (message));
    GstContext *context;

    fail_unless (gst_message_parse_context_type (message, &type));
    fail_unless_equals_string (type, "foobar");
    context = gst_context_new ("foobar", FALSE);
    gst_element_set_context (element, context);
    gst_context_unref (context);
  }

  return GST_BUS_PASS;
}
static void
gst_vaapi_decode_bin_handle_message (GstBin * bin, GstMessage * message)
{
  GstVaapiDecodeBin *vaapidecbin = GST_VAAPI_DECODE_BIN (bin);
  GstMessageType type;
  GstContext *context = NULL;
  const gchar *context_type;
  GstVaapiDisplay *display = NULL;

  type = GST_MESSAGE_TYPE (message);
  if (type != GST_MESSAGE_HAVE_CONTEXT)
    goto bail;
  gst_message_parse_have_context (message, &context);
  if (!context)
    goto bail;
  context_type = gst_context_get_context_type (context);
  if (g_strcmp0 (context_type, GST_VAAPI_DISPLAY_CONTEXT_TYPE_NAME) != 0)
    goto bail;
  if (!gst_vaapi_video_context_get_display (context, &display))
    goto bail;

  vaapidecbin->has_vpp = gst_vaapi_display_has_video_processing (display) ?
    HAS_VPP_YES : HAS_VPP_NO;

  /* the underlying VA driver implementation doesn't support video
   * post-processing, hence we have to disable it */
  if (vaapidecbin->has_vpp != HAS_VPP_YES) {
    GST_WARNING_OBJECT (vaapidecbin, "VA driver doesn't support VPP");
    if (!vaapidecbin->disable_vpp) {
      vaapidecbin->disable_vpp = TRUE;
      g_object_notify_by_pspec (G_OBJECT (vaapidecbin),
          properties[PROP_DISABLE_VPP]);
    }
  }

bail:
  if (display)
    gst_vaapi_display_unref (display);

  if (context)
    gst_context_unref (context);

  GST_BIN_CLASS (gst_vaapi_decode_bin_parent_class)->handle_message (bin,
      message);
}
Exemplo n.º 9
0
gboolean
gst_vaapi_handle_context_query (GstElement * element, GstQuery * query)
{
  GstVaapiPluginBase *const plugin = GST_VAAPI_PLUGIN_BASE (element);
  const gchar *type = NULL;
  GstContext *context, *old_context;

  g_return_val_if_fail (query != NULL, FALSE);

#if USE_GST_GL_HELPERS
  if (plugin->gl_display && plugin->gl_context && plugin->gl_other_context) {
    if (gst_gl_handle_context_query (element, query,
            (GstGLDisplay *) plugin->gl_display,
            (GstGLContext *) plugin->gl_context,
            (GstGLContext *) plugin->gl_other_context))
      return TRUE;
  }
#endif

  if (!plugin->display)
    return FALSE;

  if (!gst_query_parse_context_type (query, &type))
    return FALSE;

  if (g_strcmp0 (type, GST_VAAPI_DISPLAY_CONTEXT_TYPE_NAME))
    return FALSE;

  gst_query_parse_context (query, &old_context);
  if (old_context) {
    context = gst_context_copy (old_context);
    gst_vaapi_video_context_set_display (context, plugin->display);
  } else {
    context = gst_vaapi_video_context_new_with_display (plugin->display, FALSE);
  }

  gst_query_set_context (query, context);
  gst_context_unref (context);

  return TRUE;
}
Exemplo n.º 10
0
static gboolean
gst_mir_sink_query (GstBaseSink * bsink, GstQuery * query)
{
    GstMirSink *sink = GST_MIR_SINK (bsink);

    GST_INFO_OBJECT (sink, "query type %s", GST_QUERY_TYPE_NAME (query));

    switch (GST_QUERY_TYPE (query)) {
    case GST_QUERY_CONTEXT: {
        const gchar *context_type;
        GstMirContext *gst_mir_context;

        if (gst_query_parse_context_type (query, &context_type) &&
                strcmp (context_type, GST_MIR_CONTEXT_TYPE) == 0 &&
                sink->surface_texture_client) {
            GST_DEBUG_OBJECT (sink, "GST_MIR_CONTEXT_TYPE");

            gst_mir_context = gst_mir_context_new (GST_ELEMENT_CAST (sink),
                                                   sink->surface_texture_client);
            sink->context = gst_mir_context_new_with_stc (gst_mir_context);
            GST_INFO_OBJECT (sink, "Setting context on the sink");
            gst_query_set_context (query, sink->context);
            gst_context_unref (sink->context);

            return TRUE;
        } else {
            goto base_class;
        }
        break;
    }
    default:
        goto base_class;
        break;
    }

base_class:
    return GST_BASE_SINK_CLASS (parent_class)->query (bsink, query);
}
gboolean
gst_vaapi_reply_to_query (GstQuery * query, GstVaapiDisplay * display)
{
  const gchar *type = NULL;
  GstContext *context;

  if (GST_QUERY_TYPE (query) != GST_QUERY_CONTEXT)
    return FALSE;

  if (!display)
    return FALSE;

  if (!gst_query_parse_context_type (query, &type))
    return FALSE;

  if (g_strcmp0 (type, GST_VAAPI_DISPLAY_CONTEXT_TYPE_NAME))
    return FALSE;

  context = gst_vaapi_video_context_new_with_display (display, FALSE);
  gst_query_set_context (query, context);
  gst_context_unref (context);

  return TRUE;
}
Exemplo n.º 12
0
bool ofGstUtils::gstHandleMessage(GstBus * bus, GstMessage * msg){
	if(appsink && appsink->on_message(msg)) return true;

		/*ofLogVerbose("ofGstUtils") << "gstHandleMessage(): got " << GST_MESSAGE_TYPE_NAME(msg)
			<< " message from " << GST_MESSAGE_SRC_NAME(msg);*/

	switch (GST_MESSAGE_TYPE (msg)) {

		case GST_MESSAGE_BUFFERING:
			gint pctBuffered;
			gst_message_parse_buffering(msg,&pctBuffered);
			ofLogVerbose("ofGstUtils") << "gstHandleMessage(): buffering " << pctBuffered;
			if(pctBuffered<100){
				gst_element_set_state (gstPipeline, GST_STATE_PAUSED);
			}else if(!bPaused){
				gst_element_set_state (gstPipeline, GST_STATE_PLAYING);
			}
		break;

#if GST_VERSION_MAJOR==0
		case GST_MESSAGE_DURATION:{
			GstFormat format=GST_FORMAT_TIME;
			gst_element_query_duration(gstPipeline,&format,&durationNanos);
		}break;
#else
		case GST_MESSAGE_DURATION_CHANGED:
			gst_element_query_duration(gstPipeline,GST_FORMAT_TIME,&durationNanos);
			break;

#endif

		case GST_MESSAGE_STATE_CHANGED:{
			GstState oldstate, newstate, pendstate;
			gst_message_parse_state_changed(msg, &oldstate, &newstate, &pendstate);
			if(isStream && newstate==GST_STATE_PAUSED && !bPlaying ){
				bLoaded = true;
				bPlaying = true;
				if(!bPaused){
					//ofLogVerbose("ofGstUtils") << "gstHandleMessage(): setting stream pipeline to play";
					play();
				}
			}

			/*ofLogVerbose("ofGstUtils") << "gstHandleMessage(): " << GST_MESSAGE_SRC_NAME(msg) << " state changed from "
					<< getName(oldstate) << " to " << getName(newstate) << " (" + getName(pendstate) << ")";*/
		}break;

		case GST_MESSAGE_ASYNC_DONE:
			ofLogVerbose("ofGstUtils") << "gstHandleMessage(): async done";
		break;

		case GST_MESSAGE_ERROR: {
			GError *err;
			gchar *debug;
			gst_message_parse_error(msg, &err, &debug);
			gchar * name = gst_element_get_name(GST_MESSAGE_SRC (msg));

			ofLogError("ofGstUtils") << "gstHandleMessage(): embedded video playback halted for plugin, module "
				<< name << "  reported: " << err->message;

			g_free(name);
			g_error_free(err);
			g_free(debug);

			gst_element_set_state(GST_ELEMENT(gstPipeline), GST_STATE_NULL);

		}break;

		case GST_MESSAGE_EOS:{
			ofLogVerbose("ofGstUtils") << "gstHandleMessage(): end of the stream";
			bool isClosing = closing;
			eos_cb();

			if(isClosing){
				busWatchID = 0;
				return false;
			}

			switch(loopMode){

				case OF_LOOP_NORMAL:{
					GstFormat format = GST_FORMAT_TIME;
					GstSeekFlags flags = (GstSeekFlags) (GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_KEY_UNIT);
					if(speed>0){
						if(!gst_element_seek(GST_ELEMENT(gstPipeline),
											speed,
											format,
											flags,
											GST_SEEK_TYPE_SET,
											0,
											GST_SEEK_TYPE_SET,
											-1)) {
							ofLogWarning("ofGstUtils") << "gstHandleMessage(): unable to seek";
						}
					}else if(speed<0){
						if(!gst_element_seek(GST_ELEMENT(gstPipeline),speed, 	format,
								flags,
								GST_SEEK_TYPE_SET,
								0,
								GST_SEEK_TYPE_SET,
								durationNanos-1000000)) {
							ofLogWarning("ofGstUtils") << "gstHandleMessage(): unable to seek";
						}
					}
				}break;

				case OF_LOOP_PALINDROME:{
					GstFormat format = GST_FORMAT_TIME;
					GstSeekFlags flags = (GstSeekFlags) (GST_SEEK_FLAG_FLUSH |GST_SEEK_FLAG_KEY_UNIT);
					gint64 pos;
					#if GST_VERSION_MAJOR==0
						gst_element_query_position(GST_ELEMENT(gstPipeline),&format,&pos);
					#else
						gst_element_query_position(GST_ELEMENT(gstPipeline),format,&pos);
					#endif
					float loopSpeed;
					if(pos>0)
						loopSpeed=-speed;
					else
						loopSpeed=speed;
					if(!gst_element_seek(GST_ELEMENT(gstPipeline),
										loopSpeed,
										GST_FORMAT_UNDEFINED,
										flags,
										GST_SEEK_TYPE_NONE,
										0,
										GST_SEEK_TYPE_NONE,
										0)) {
						ofLogWarning("ofGstUtils") << "gstHandleMessage(): unable to seek";
					}
				}break;

				default:
				break;
			}

		}break;
		case GST_MESSAGE_LATENCY:
			gst_bin_recalculate_latency (GST_BIN (getPipeline()));
			break;
		case GST_MESSAGE_REQUEST_STATE:	{
			GstState state;
			gchar *name = gst_object_get_path_string (GST_MESSAGE_SRC (msg));

			gst_message_parse_request_state (msg, &state);
			gst_element_set_state (getPipeline(), state);

			g_free (name);
			break;
		}
		case GST_MESSAGE_HAVE_CONTEXT:{
			GstContext *context;
			const gchar *context_type;
			gchar *context_str;

			gst_message_parse_have_context (msg, &context);

			context_type = gst_context_get_context_type (context);
			context_str = gst_structure_to_string (gst_context_get_structure (context));
			ofLogNotice("ofGstUtils","Got context from element '%s': %s=%s\n",
				GST_ELEMENT_NAME (GST_MESSAGE_SRC (msg)), context_type,
				context_str);
			g_free (context_str);
			gst_context_unref (context);
			break;
		}
		default:
			ofLogVerbose("ofGstUtils") << "gstHandleMessage(): unhandled message from " << GST_MESSAGE_SRC_NAME(msg);
		break;
	}

	return true;
}
Exemplo n.º 13
0
static void
case_teardown (void)
{
  gst_context_unref (ctx);
}
Exemplo n.º 14
0
/**
 * gst_gl_handle_context_query:
 * @element: a #GstElement
 * @query: a #GstQuery of type %GST_QUERY_CONTEXT
 * @display: (transfer none) (nullable): a #GstGLDisplay
 * @context: (transfer none) (nullable): a #GstGLContext
 * @other_context: (transfer none) (nullable): application provided #GstGLContext
 *
 * Returns: Whether the @query was successfully responded to from the passed
 *          @display, @context, and @other_context.
 */
gboolean
gst_gl_handle_context_query (GstElement * element, GstQuery * query,
    GstGLDisplay * display, GstGLContext * gl_context,
    GstGLContext * other_context)
{
  const gchar *context_type;
  GstContext *context, *old_context;

  g_return_val_if_fail (GST_IS_ELEMENT (element), FALSE);
  g_return_val_if_fail (GST_IS_QUERY (query), FALSE);
  g_return_val_if_fail (display == NULL || GST_IS_GL_DISPLAY (display), FALSE);
  g_return_val_if_fail (gl_context == NULL
      || GST_IS_GL_CONTEXT (gl_context), FALSE);
  g_return_val_if_fail (other_context == NULL
      || GST_IS_GL_CONTEXT (other_context), FALSE);

  GST_LOG_OBJECT (element, "handle context query %" GST_PTR_FORMAT, query);
  gst_query_parse_context_type (query, &context_type);

  if (display && g_strcmp0 (context_type, GST_GL_DISPLAY_CONTEXT_TYPE) == 0) {
    gst_query_parse_context (query, &old_context);

    if (old_context)
      context = gst_context_copy (old_context);
    else
      context = gst_context_new (GST_GL_DISPLAY_CONTEXT_TYPE, TRUE);

    gst_context_set_gl_display (context, display);
    gst_query_set_context (query, context);
    gst_context_unref (context);
    GST_DEBUG_OBJECT (element, "successfully set %" GST_PTR_FORMAT
        " on %" GST_PTR_FORMAT, display, query);

    return TRUE;
  }
#if GST_GL_HAVE_WINDOW_X11
  else if (display && g_strcmp0 (context_type, "gst.x11.display.handle") == 0) {
    GstStructure *s;

    gst_query_parse_context (query, &old_context);

    if (old_context)
      context = gst_context_copy (old_context);
    else
      context = gst_context_new ("gst.x11.display.handle", TRUE);

    if (gst_gl_display_get_handle_type (display) & GST_GL_DISPLAY_TYPE_X11) {
      Display *x11_display = (Display *) gst_gl_display_get_handle (display);

      if (x11_display) {
        s = gst_context_writable_structure (context);
        gst_structure_set (s, "display", G_TYPE_POINTER, x11_display, NULL);

        gst_query_set_context (query, context);
        gst_context_unref (context);

        GST_DEBUG_OBJECT (element, "successfully set x11 display %p (from %"
            GST_PTR_FORMAT ") on %" GST_PTR_FORMAT, x11_display, display,
            query);

        return TRUE;
      }
    }
  }
#endif
#if GST_GL_HAVE_WINDOW_WAYLAND
  else if (display
      && g_strcmp0 (context_type, "GstWaylandDisplayHandleContextType") == 0) {
    GstStructure *s;

    gst_query_parse_context (query, &old_context);

    if (old_context)
      context = gst_context_copy (old_context);
    else
      context = gst_context_new ("GstWaylandDisplayHandleContextType", TRUE);

    if (gst_gl_display_get_handle_type (display) & GST_GL_DISPLAY_TYPE_WAYLAND) {
      struct wl_display *wayland_display =
          (struct wl_display *) gst_gl_display_get_handle (display);

      if (wayland_display) {
        s = gst_context_writable_structure (context);
        gst_structure_set (s, "display", G_TYPE_POINTER, wayland_display, NULL);

        gst_query_set_context (query, context);
        gst_context_unref (context);

        GST_DEBUG_OBJECT (element, "successfully set wayland display %p (from %"
            GST_PTR_FORMAT ") on %" GST_PTR_FORMAT, wayland_display, display,
            query);

        return TRUE;
      }
    }
  }
#endif
  else if (other_context && g_strcmp0 (context_type, "gst.gl.app_context") == 0) {
    GstStructure *s;

    gst_query_parse_context (query, &old_context);

    if (old_context)
      context = gst_context_copy (old_context);
    else
      context = gst_context_new ("gst.gl.app_context", TRUE);

    s = gst_context_writable_structure (context);
    gst_structure_set (s, "context", GST_TYPE_GL_CONTEXT, other_context, NULL);
    gst_query_set_context (query, context);
    gst_context_unref (context);

    GST_DEBUG_OBJECT (element, "successfully set application GL context %"
        GST_PTR_FORMAT " on %" GST_PTR_FORMAT, other_context, query);

    return TRUE;
  } else if (gl_context
      && g_strcmp0 (context_type, "gst.gl.local_context") == 0) {
    GstStructure *s;

    gst_query_parse_context (query, &old_context);

    if (old_context)
      context = gst_context_copy (old_context);
    else
      context = gst_context_new ("gst.gl.local_context", TRUE);

    s = gst_context_writable_structure (context);
    gst_structure_set (s, "context", GST_TYPE_GL_CONTEXT, gl_context, NULL);
    gst_query_set_context (query, context);
    gst_context_unref (context);

    GST_DEBUG_OBJECT (element, "successfully set GL context %"
        GST_PTR_FORMAT " on %" GST_PTR_FORMAT, gl_context, query);

    return TRUE;
  }

  return FALSE;
}
Exemplo n.º 15
0
gboolean
gst_gl_handle_context_query (GstElement * element, GstQuery * query,
    GstGLDisplay ** display, GstGLContext ** other_context)
{
  gboolean res = FALSE;
  const gchar *context_type;
  GstContext *context, *old_context;

  g_return_val_if_fail (element != NULL, FALSE);
  g_return_val_if_fail (query != NULL, FALSE);
  g_return_val_if_fail (display != NULL, FALSE);
  g_return_val_if_fail (other_context != NULL, FALSE);

  gst_query_parse_context_type (query, &context_type);

  if (g_strcmp0 (context_type, GST_GL_DISPLAY_CONTEXT_TYPE) == 0) {

    gst_query_parse_context (query, &old_context);

    if (old_context)
      context = gst_context_copy (old_context);
    else
      context = gst_context_new (GST_GL_DISPLAY_CONTEXT_TYPE, TRUE);

    gst_context_set_gl_display (context, *display);
    gst_query_set_context (query, context);
    gst_context_unref (context);

    res = *display != NULL;
  }
#if GST_GL_HAVE_WINDOW_X11
  else if (g_strcmp0 (context_type, "gst.x11.display.handle") == 0) {
    GstStructure *s;
    Display *x11_display = NULL;

    gst_query_parse_context (query, &old_context);

    if (old_context)
      context = gst_context_copy (old_context);
    else
      context = gst_context_new ("gst.x11.display.handle", TRUE);

    if (*display
        && ((*display)->type & GST_GL_DISPLAY_TYPE_X11) ==
        GST_GL_DISPLAY_TYPE_X11)
      x11_display = (Display *) gst_gl_display_get_handle (*display);

    s = gst_context_writable_structure (context);
    gst_structure_set (s, "display", G_TYPE_POINTER, x11_display, NULL);

    gst_query_set_context (query, context);
    gst_context_unref (context);

    res = x11_display != NULL;
  }
#endif
#if GST_GL_HAVE_WINDOW_WAYLAND
  else if (g_strcmp0 (context_type, "GstWaylandDisplayHandleContextType") == 0) {
    GstStructure *s;
    struct wl_display *wayland_display = NULL;

    gst_query_parse_context (query, &old_context);

    if (old_context)
      context = gst_context_copy (old_context);
    else
      context = gst_context_new ("GstWaylandDisplayHandleContextType", TRUE);

    if (*display
        && ((*display)->type & GST_GL_DISPLAY_TYPE_WAYLAND) ==
        GST_GL_DISPLAY_TYPE_WAYLAND)
      wayland_display =
          (struct wl_display *) gst_gl_display_get_handle (*display);

    s = gst_context_writable_structure (context);
    gst_structure_set (s, "display", G_TYPE_POINTER, wayland_display, NULL);

    gst_query_set_context (query, context);
    gst_context_unref (context);

    res = wayland_display != NULL;
  }
#endif
  else if (g_strcmp0 (context_type, "gst.gl.app_context") == 0) {
    GstStructure *s;

    gst_query_parse_context (query, &old_context);

    if (old_context)
      context = gst_context_copy (old_context);
    else
      context = gst_context_new ("gst.gl.app_context", TRUE);

    s = gst_context_writable_structure (context);
    gst_structure_set (s, "context", GST_GL_TYPE_CONTEXT, *other_context, NULL);
    gst_query_set_context (query, context);
    gst_context_unref (context);

    res = *other_context != NULL;
  }

  return res;
}
Exemplo n.º 16
0
static gboolean
gst_gl_test_src_query (GstBaseSrc * bsrc, GstQuery * query)
{
  gboolean res = FALSE;
  GstGLTestSrc *src;

  src = GST_GL_TEST_SRC (bsrc);

  switch (GST_QUERY_TYPE (query)) {
    case GST_QUERY_CONTEXT:
    {
      const gchar *context_type;
      GstContext *context, *old_context;

      res = gst_gl_handle_context_query ((GstElement *) src, query,
          &src->display, &src->other_context);
      if (src->display)
        gst_gl_display_filter_gl_api (src->display, SUPPORTED_GL_APIS);

      gst_query_parse_context_type (query, &context_type);

      if (g_strcmp0 (context_type, "gst.gl.local_context") == 0) {
        GstStructure *s;

        gst_query_parse_context (query, &old_context);

        if (old_context)
          context = gst_context_copy (old_context);
        else
          context = gst_context_new ("gst.gl.local_context", FALSE);

        s = gst_context_writable_structure (context);
        gst_structure_set (s, "context", GST_TYPE_GL_CONTEXT, src->context,
            NULL);
        gst_query_set_context (query, context);
        gst_context_unref (context);

        res = src->context != NULL;
      }
      GST_LOG_OBJECT (src, "context query of type %s %i", context_type, res);

      if (res)
        return res;

      break;
    }
    case GST_QUERY_CONVERT:
    {
      GstFormat src_fmt, dest_fmt;
      gint64 src_val, dest_val;

      gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
      res =
          gst_video_info_convert (&src->out_info, src_fmt, src_val, dest_fmt,
          &dest_val);
      gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);

      return res;
    }
    default:
      break;
  }

  return GST_BASE_SRC_CLASS (parent_class)->query (bsrc, query);
}
Exemplo n.º 17
0
static gboolean
stereosplit_sink_query (GstPad * pad, GstObject * parent, GstQuery * query)
{
  GstGLStereoSplit *split = GST_GL_STEREOSPLIT (parent);

  GST_DEBUG_OBJECT (split, "sink query %s",
      gst_query_type_get_name (GST_QUERY_TYPE (query)));

  switch (GST_QUERY_TYPE (query)) {
    case GST_QUERY_CONTEXT:
    {
      const gchar *context_type;
      GstContext *context, *old_context;
      gboolean ret;

      ret = gst_gl_handle_context_query ((GstElement *) split, query,
          &split->display, &split->other_context);
      if (split->display)
        gst_gl_display_filter_gl_api (split->display, SUPPORTED_GL_APIS);
      gst_query_parse_context_type (query, &context_type);

      if (g_strcmp0 (context_type, "gst.gl.local_context") == 0) {
        GstStructure *s;

        gst_query_parse_context (query, &old_context);

        if (old_context)
          context = gst_context_copy (old_context);
        else
          context = gst_context_new ("gst.gl.local_context", FALSE);

        s = gst_context_writable_structure (context);
        gst_structure_set (s, "context", GST_GL_TYPE_CONTEXT, split->context,
            NULL);
        gst_query_set_context (query, context);
        gst_context_unref (context);

        ret = split->context != NULL;
      }
      GST_LOG_OBJECT (split, "context query of type %s %i", context_type, ret);

      if (ret)
        return ret;

      return gst_pad_query_default (pad, parent, query);
    }
    case GST_QUERY_ALLOCATION:
    {
      return stereosplit_propose_allocation (split, query);
    }
    case GST_QUERY_ACCEPT_CAPS:
    {
      GstCaps *possible, *caps;
      gboolean allowed;

      gst_query_parse_accept_caps (query, &caps);

      if (!(possible = gst_pad_query_caps (split->sink_pad, caps)))
        return FALSE;

      allowed = gst_caps_is_subset (caps, possible);
      gst_caps_unref (possible);

      gst_query_set_accept_caps_result (query, allowed);
      return allowed;
    }
    case GST_QUERY_CAPS:
    {
      GstCaps *filter, *left, *right, *combined, *ret, *templ_caps;

      gst_query_parse_caps (query, &filter);

      /* Calculate what downstream can collectively support */
      if (!(left = gst_pad_peer_query_caps (split->left_pad, NULL)))
        return FALSE;
      if (!(right = gst_pad_peer_query_caps (split->right_pad, NULL)))
        return FALSE;

      /* Strip out multiview mode and flags that might break the
       * intersection, since we can convert.
       * We could keep downstream preferred flip/flopping and list
       * separated as preferred in the future which might
       * theoretically allow us an easier conversion, but it's not essential
       */
      left = strip_mview_fields (left, GST_VIDEO_MULTIVIEW_FLAGS_NONE);
      right = strip_mview_fields (right, GST_VIDEO_MULTIVIEW_FLAGS_NONE);

      combined = gst_caps_intersect (left, right);
      gst_caps_unref (left);
      gst_caps_unref (right);

      /* Intersect peer caps with our template formats */
      templ_caps = gst_pad_get_pad_template_caps (split->left_pad);
      ret =
          gst_caps_intersect_full (combined, templ_caps,
          GST_CAPS_INTERSECT_FIRST);
      gst_caps_unref (templ_caps);

      gst_caps_unref (combined);
      combined = ret;

      if (!combined || gst_caps_is_empty (combined)) {
        gst_caps_unref (combined);
        return FALSE;
      }

      /* Convert from the src pad caps to input formats we support */
      ret = stereosplit_transform_caps (split, GST_PAD_SRC, combined, filter);
      gst_caps_unref (combined);
      combined = ret;

      /* Intersect with the sink pad template then */
      templ_caps = gst_pad_get_pad_template_caps (split->sink_pad);
      ret =
          gst_caps_intersect_full (combined, templ_caps,
          GST_CAPS_INTERSECT_FIRST);
      gst_caps_unref (templ_caps);

      GST_LOG_OBJECT (split, "Returning sink pad caps %" GST_PTR_FORMAT, ret);

      gst_query_set_caps_result (query, ret);
      return !gst_caps_is_empty (ret);
    }
    default:
      return gst_pad_query_default (pad, parent, query);
  }
}
static gboolean
gst_gl_base_mixer_sink_query (GstAggregator * agg, GstAggregatorPad * bpad,
                              GstQuery * query)
{
    gboolean ret = FALSE;
    GstGLBaseMixer *mix = GST_GL_BASE_MIXER (agg);
    GstGLBaseMixerClass *mix_class = GST_GL_BASE_MIXER_GET_CLASS (mix);
    GstGLBaseMixerPad *pad = GST_GL_BASE_MIXER_PAD (bpad);

    GST_TRACE ("QUERY %" GST_PTR_FORMAT, query);

    switch (GST_QUERY_TYPE (query)) {
    case GST_QUERY_ALLOCATION:
    {
        GstQuery *decide_query = NULL;

        GST_OBJECT_LOCK (mix);
        if (G_UNLIKELY (!mix->priv->negotiated)) {
            GST_DEBUG_OBJECT (mix,
                              "not negotiated yet, can't answer ALLOCATION query");
            GST_OBJECT_UNLOCK (mix);
            return FALSE;
        }
        if ((decide_query = mix->priv->query))
            gst_query_ref (decide_query);
        GST_OBJECT_UNLOCK (mix);

        GST_DEBUG_OBJECT (mix,
                          "calling propose allocation with query %" GST_PTR_FORMAT,
                          decide_query);

        /* pass the query to the propose_allocation vmethod if any */
        if (mix_class->propose_allocation)
            ret = mix_class->propose_allocation (mix, pad, decide_query, query);
        else
            ret = FALSE;

        if (decide_query)
            gst_query_unref (decide_query);

        GST_DEBUG_OBJECT (mix, "ALLOCATION ret %d, %" GST_PTR_FORMAT, ret, query);
        return ret;
    }
    case GST_QUERY_CONTEXT:
    {
        const gchar *context_type;
        GstContext *context, *old_context;

        ret = gst_gl_handle_context_query ((GstElement *) mix, query,
                                           &mix->display, &mix->priv->other_context);
        if (mix->display)
            gst_gl_display_filter_gl_api (mix->display,
                                          mix_class->supported_gl_api);
        gst_query_parse_context_type (query, &context_type);

        if (g_strcmp0 (context_type, "gst.gl.local_context") == 0) {
            GstStructure *s;

            gst_query_parse_context (query, &old_context);

            if (old_context)
                context = gst_context_copy (old_context);
            else
                context = gst_context_new ("gst.gl.local_context", FALSE);

            s = gst_context_writable_structure (context);
            gst_structure_set (s, "context", GST_GL_TYPE_CONTEXT, mix->context,
                               NULL);
            gst_query_set_context (query, context);
            gst_context_unref (context);

            ret = mix->context != NULL;
        }
        GST_LOG_OBJECT (mix, "context query of type %s %i", context_type, ret);

        if (ret)
            return ret;

        break;
    }
    default:
        break;
    }

    return GST_AGGREGATOR_CLASS (parent_class)->sink_query (agg, bpad, query);;
}