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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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1209 lines
37 KiB
C
1209 lines
37 KiB
C
/*
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* GStreamer
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* Copyright (C) 2003 Julien Moutte <julien@moutte.net>
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* Copyright (C) 2005,2006,2007 David A. Schleef <ds@schleef.org>
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* Copyright (C) 2008 Julien Isorce <julien.isorce@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/**
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* SECTION:element-glimagesink
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*
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* glimagesink renders video frames to a drawable on a local or remote
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* display using OpenGL. This element can receive a Window ID from the
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* application through the VideoOverlay interface and will then render video
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* frames in this drawable.
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* If no Window ID was provided by the application, the element will
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* create its own internal window and render into it.
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*
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* <refsect2>
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* <title>Scaling</title>
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* <para>
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* Depends on the driver, OpenGL handles hardware accelerated
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* scaling of video frames. This means that the element will just accept
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* incoming video frames no matter their geometry and will then put them to the
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* drawable scaling them on the fly. Using the #GstGLImageSink:force-aspect-ratio
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* property it is possible to enforce scaling with a constant aspect ratio,
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* which means drawing black borders around the video frame.
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* </para>
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* </refsect2>
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* <refsect2>
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* <title>Events</title>
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* <para>
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* Through the gl thread, glimagesink handle some events coming from the drawable
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* to manage its appearance even when the data is not flowing (GST_STATE_PAUSED).
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* That means that even when the element is paused, it will receive expose events
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* from the drawable and draw the latest frame with correct borders/aspect-ratio.
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* </para>
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* </refsect2>
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* <refsect2>
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* <title>Examples</title>
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* |[
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* gst-launch -v videotestsrc ! "video/x-raw-rgb" ! glimagesink
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* ]| A pipeline to test hardware scaling.
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* No special opengl extension is used in this pipeline, that's why it should work
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* with OpenGL >= 1.1. That's the case if you are using the MESA3D driver v1.3.
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* |[
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* gst-launch -v videotestsrc ! "video/x-raw-yuv, format=(fourcc)I420" ! glimagesink
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* ]| A pipeline to test hardware scaling and hardware colorspace conversion.
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* When your driver supports GLSL (OpenGL Shading Language needs OpenGL >= 2.1),
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* the 4 following format YUY2, UYVY, I420, YV12 and AYUV are converted to RGB32
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* through some fragment shaders and using one framebuffer (FBO extension OpenGL >= 1.4).
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* If your driver does not support GLSL but supports MESA_YCbCr extension then
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* the you can use YUY2 and UYVY. In this case the colorspace conversion is automatically
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* made when loading the texture and therefore no framebuffer is used.
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* |[
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* gst-launch -v gltestsrc ! glimagesink
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* ]| A pipeline 100% OpenGL.
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* No special opengl extension is used in this pipeline, that's why it should work
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* with OpenGL >= 1.1. That's the case if you are using the MESA3D driver v1.3.
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* |[
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* gst-plugins-gl/tests/examples/generic/cube
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* ]| The graphic FPS scene can be greater than the input video FPS.
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* The graphic scene can be written from a client code through the
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* two glfilterapp properties.
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* </refsect2>
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/video/videooverlay.h>
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#include "gstglimagesink.h"
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#if GST_GL_HAVE_PLATFORM_EGL
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#include <gst/gl/egl/gsteglimagememory.h>
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#endif
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GST_DEBUG_CATEGORY (gst_debug_glimage_sink);
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#define GST_CAT_DEFAULT gst_debug_glimage_sink
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#define GST_GLIMAGE_SINK_GET_LOCK(glsink) \
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(GST_GLIMAGE_SINK(glsink)->drawing_lock)
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#define GST_GLIMAGE_SINK_LOCK(glsink) \
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(g_mutex_lock(&GST_GLIMAGE_SINK_GET_LOCK (glsink)))
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#define GST_GLIMAGE_SINK_UNLOCK(glsink) \
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(g_mutex_unlock(&GST_GLIMAGE_SINK_GET_LOCK (glsink)))
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#define USING_OPENGL(context) (gst_gl_context_get_gl_api (context) & GST_GL_API_OPENGL)
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#define USING_OPENGL3(context) (gst_gl_context_get_gl_api (context) & GST_GL_API_OPENGL3)
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#define USING_GLES(context) (gst_gl_context_get_gl_api (context) & GST_GL_API_GLES)
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#define USING_GLES2(context) (gst_gl_context_get_gl_api (context) & GST_GL_API_GLES2)
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#define USING_GLES3(context) (gst_gl_context_get_gl_api (context) & GST_GL_API_GLES3)
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#if GST_GL_HAVE_GLES2
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static void gst_glimage_sink_thread_init_redisplay (GstGLImageSink * gl_sink);
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#endif
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static void gst_glimage_sink_on_close (GstGLImageSink * gl_sink);
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static void gst_glimage_sink_on_resize (const GstGLImageSink * gl_sink,
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gint width, gint height);
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static void gst_glimage_sink_on_draw (const GstGLImageSink * gl_sink);
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static gboolean gst_glimage_sink_redisplay (GstGLImageSink * gl_sink);
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static void gst_glimage_sink_finalize (GObject * object);
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static void gst_glimage_sink_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * param_spec);
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static void gst_glimage_sink_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * param_spec);
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static gboolean gst_glimage_sink_stop (GstBaseSink * bsink);
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static gboolean gst_glimage_sink_query (GstBaseSink * bsink, GstQuery * query);
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static void gst_glimage_sink_set_context (GstElement * element,
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GstContext * context);
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static GstStateChangeReturn
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gst_glimage_sink_change_state (GstElement * element, GstStateChange transition);
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static void gst_glimage_sink_get_times (GstBaseSink * bsink, GstBuffer * buf,
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GstClockTime * start, GstClockTime * end);
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static gboolean gst_glimage_sink_set_caps (GstBaseSink * bsink, GstCaps * caps);
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static GstFlowReturn gst_glimage_sink_prepare (GstBaseSink * bsink,
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GstBuffer * buf);
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static GstFlowReturn gst_glimage_sink_show_frame (GstVideoSink * bsink,
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GstBuffer * buf);
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static gboolean gst_glimage_sink_propose_allocation (GstBaseSink * bsink,
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GstQuery * query);
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static void gst_glimage_sink_video_overlay_init (GstVideoOverlayInterface *
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iface);
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static void gst_glimage_sink_set_window_handle (GstVideoOverlay * overlay,
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guintptr id);
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static void gst_glimage_sink_expose (GstVideoOverlay * overlay);
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static GstStaticPadTemplate gst_glimage_sink_template =
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
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(GST_CAPS_FEATURE_MEMORY_GL_MEMORY,
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"RGBA") "; "
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#if GST_GL_HAVE_PLATFORM_EGL
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GST_VIDEO_CAPS_MAKE_WITH_FEATURES
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(GST_CAPS_FEATURE_MEMORY_EGL_IMAGE, "RGBA") "; "
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#endif
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GST_VIDEO_CAPS_MAKE_WITH_FEATURES
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(GST_CAPS_FEATURE_META_GST_VIDEO_GL_TEXTURE_UPLOAD_META,
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"RGBA") "; " GST_VIDEO_CAPS_MAKE (GST_GL_COLOR_CONVERT_FORMATS))
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);
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enum
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{
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ARG_0,
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ARG_DISPLAY,
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PROP_CLIENT_RESHAPE_CALLBACK,
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PROP_CLIENT_DRAW_CALLBACK,
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PROP_CLIENT_DATA,
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PROP_FORCE_ASPECT_RATIO,
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PROP_PIXEL_ASPECT_RATIO,
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PROP_OTHER_CONTEXT
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};
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#define gst_glimage_sink_parent_class parent_class
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G_DEFINE_TYPE_WITH_CODE (GstGLImageSink, gst_glimage_sink,
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GST_TYPE_VIDEO_SINK, G_IMPLEMENT_INTERFACE (GST_TYPE_VIDEO_OVERLAY,
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gst_glimage_sink_video_overlay_init);
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GST_DEBUG_CATEGORY_INIT (gst_debug_glimage_sink, "glimagesink", 0,
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"OpenGL Video Sink"));
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static void
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gst_glimage_sink_class_init (GstGLImageSinkClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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GstBaseSinkClass *gstbasesink_class;
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GstVideoSinkClass *gstvideosink_class;
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GstElementClass *element_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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gstbasesink_class = (GstBaseSinkClass *) klass;
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gstvideosink_class = (GstVideoSinkClass *) klass;
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element_class = GST_ELEMENT_CLASS (klass);
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gobject_class->set_property = gst_glimage_sink_set_property;
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gobject_class->get_property = gst_glimage_sink_get_property;
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g_object_class_install_property (gobject_class, ARG_DISPLAY,
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g_param_spec_string ("display", "Display", "Display name",
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NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_CLIENT_RESHAPE_CALLBACK,
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g_param_spec_pointer ("client-reshape-callback",
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"Client reshape callback",
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"Define a custom reshape callback in a client code",
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G_PARAM_WRITABLE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_CLIENT_DRAW_CALLBACK,
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g_param_spec_pointer ("client-draw-callback", "Client draw callback",
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"Define a custom draw callback in a client code",
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G_PARAM_WRITABLE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_CLIENT_DATA,
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g_param_spec_pointer ("client-data", "Client data",
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"Pass data to the draw and reshape callbacks",
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G_PARAM_WRITABLE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_FORCE_ASPECT_RATIO,
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g_param_spec_boolean ("force-aspect-ratio",
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"Force aspect ratio",
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"When enabled, scaling will respect original aspect ratio", TRUE,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_PIXEL_ASPECT_RATIO,
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gst_param_spec_fraction ("pixel-aspect-ratio", "Pixel Aspect Ratio",
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"The pixel aspect ratio of the device", 0, 1, G_MAXINT, 1, 1, 1,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_OTHER_CONTEXT,
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g_param_spec_object ("other-context",
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"External OpenGL context",
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"Give an external OpenGL context with which to share textures",
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GST_GL_TYPE_CONTEXT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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gst_element_class_set_metadata (element_class, "OpenGL video sink",
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"Sink/Video", "A videosink based on OpenGL",
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"Julien Isorce <julien.isorce@gmail.com>");
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_glimage_sink_template));
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gobject_class->finalize = gst_glimage_sink_finalize;
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gstelement_class->change_state = gst_glimage_sink_change_state;
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gstelement_class->set_context = gst_glimage_sink_set_context;
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gstbasesink_class->query = GST_DEBUG_FUNCPTR (gst_glimage_sink_query);
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gstbasesink_class->set_caps = gst_glimage_sink_set_caps;
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gstbasesink_class->get_times = gst_glimage_sink_get_times;
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gstbasesink_class->prepare = gst_glimage_sink_prepare;
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gstbasesink_class->propose_allocation = gst_glimage_sink_propose_allocation;
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gstbasesink_class->stop = gst_glimage_sink_stop;
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gstvideosink_class->show_frame =
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GST_DEBUG_FUNCPTR (gst_glimage_sink_show_frame);
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}
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static void
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gst_glimage_sink_init (GstGLImageSink * glimage_sink)
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{
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glimage_sink->display_name = NULL;
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glimage_sink->window_id = 0;
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glimage_sink->new_window_id = 0;
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glimage_sink->display = NULL;
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glimage_sink->clientReshapeCallback = NULL;
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glimage_sink->clientDrawCallback = NULL;
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glimage_sink->client_data = NULL;
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glimage_sink->keep_aspect_ratio = TRUE;
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glimage_sink->par_n = 1;
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glimage_sink->par_d = 1;
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glimage_sink->pool = NULL;
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glimage_sink->redisplay_texture = 0;
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g_mutex_init (&glimage_sink->drawing_lock);
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}
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static void
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gst_glimage_sink_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstGLImageSink *glimage_sink;
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g_return_if_fail (GST_IS_GLIMAGE_SINK (object));
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glimage_sink = GST_GLIMAGE_SINK (object);
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switch (prop_id) {
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case ARG_DISPLAY:
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{
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g_free (glimage_sink->display_name);
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glimage_sink->display_name = g_strdup (g_value_get_string (value));
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break;
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}
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case PROP_CLIENT_RESHAPE_CALLBACK:
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{
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glimage_sink->clientReshapeCallback = g_value_get_pointer (value);
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break;
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}
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case PROP_CLIENT_DRAW_CALLBACK:
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{
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glimage_sink->clientDrawCallback = g_value_get_pointer (value);
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break;
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}
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case PROP_CLIENT_DATA:
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{
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glimage_sink->client_data = g_value_get_pointer (value);
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break;
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}
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case PROP_FORCE_ASPECT_RATIO:
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{
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glimage_sink->keep_aspect_ratio = g_value_get_boolean (value);
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break;
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}
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case PROP_PIXEL_ASPECT_RATIO:
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{
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glimage_sink->par_n = gst_value_get_fraction_numerator (value);
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glimage_sink->par_d = gst_value_get_fraction_denominator (value);
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break;
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}
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case PROP_OTHER_CONTEXT:
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{
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if (glimage_sink->other_context)
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gst_object_unref (glimage_sink->other_context);
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glimage_sink->other_context = g_value_dup_object (value);
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break;
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}
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_glimage_sink_finalize (GObject * object)
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{
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GstGLImageSink *glimage_sink;
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g_return_if_fail (GST_IS_GLIMAGE_SINK (object));
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glimage_sink = GST_GLIMAGE_SINK (object);
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g_mutex_clear (&glimage_sink->drawing_lock);
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g_free (glimage_sink->display_name);
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GST_DEBUG ("finalized");
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}
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static void
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gst_glimage_sink_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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GstGLImageSink *glimage_sink;
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g_return_if_fail (GST_IS_GLIMAGE_SINK (object));
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glimage_sink = GST_GLIMAGE_SINK (object);
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switch (prop_id) {
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case ARG_DISPLAY:
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g_value_set_string (value, glimage_sink->display_name);
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break;
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case PROP_FORCE_ASPECT_RATIO:
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g_value_set_boolean (value, glimage_sink->keep_aspect_ratio);
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break;
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case PROP_PIXEL_ASPECT_RATIO:
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gst_value_set_fraction (value, glimage_sink->par_n, glimage_sink->par_d);
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break;
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case PROP_OTHER_CONTEXT:
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g_value_set_object (value, glimage_sink->other_context);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static gboolean
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_ensure_gl_setup (GstGLImageSink * gl_sink)
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{
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GError *error = NULL;
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if (!gst_gl_ensure_display (gl_sink, &gl_sink->display))
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return FALSE;
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if (!gl_sink->context) {
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GstGLWindow *window;
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gl_sink->context = gst_gl_context_new (gl_sink->display);
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if (!gl_sink->context)
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goto context_creation_error;
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window = gst_gl_context_get_window (gl_sink->context);
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if (!gl_sink->window_id && !gl_sink->new_window_id)
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gst_video_overlay_prepare_window_handle (GST_VIDEO_OVERLAY (gl_sink));
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if (gl_sink->window_id != gl_sink->new_window_id) {
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gl_sink->window_id = gl_sink->new_window_id;
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gst_gl_window_set_window_handle (window, gl_sink->window_id);
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}
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if (!gst_gl_context_create (gl_sink->context, gl_sink->other_context,
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&error)) {
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gst_object_unref (window);
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goto context_error;
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}
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/* setup callbacks */
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gst_gl_window_set_resize_callback (window,
|
|
GST_GL_WINDOW_RESIZE_CB (gst_glimage_sink_on_resize),
|
|
gst_object_ref (gl_sink), (GDestroyNotify) gst_object_unref);
|
|
gst_gl_window_set_draw_callback (window,
|
|
GST_GL_WINDOW_CB (gst_glimage_sink_on_draw),
|
|
gst_object_ref (gl_sink), (GDestroyNotify) gst_object_unref);
|
|
gst_gl_window_set_close_callback (window,
|
|
GST_GL_WINDOW_CB (gst_glimage_sink_on_close),
|
|
gst_object_ref (gl_sink), (GDestroyNotify) gst_object_unref);
|
|
|
|
gst_object_unref (window);
|
|
}
|
|
|
|
return TRUE;
|
|
|
|
context_creation_error:
|
|
{
|
|
GST_ELEMENT_ERROR (gl_sink, RESOURCE, NOT_FOUND,
|
|
("Failed to create GL context"), (NULL));
|
|
return FALSE;
|
|
}
|
|
|
|
context_error:
|
|
{
|
|
GST_ELEMENT_ERROR (gl_sink, RESOURCE, NOT_FOUND, ("%s", error->message),
|
|
(NULL));
|
|
gst_object_unref (gl_sink->context);
|
|
gl_sink->context = NULL;
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_glimage_sink_query (GstBaseSink * bsink, GstQuery * query)
|
|
{
|
|
GstGLImageSink *glimage_sink = GST_GLIMAGE_SINK (bsink);
|
|
gboolean res = FALSE;
|
|
|
|
switch (GST_QUERY_TYPE (query)) {
|
|
case GST_QUERY_CONTEXT:
|
|
{
|
|
return gst_gl_handle_context_query ((GstElement *) glimage_sink, query,
|
|
&glimage_sink->display);
|
|
break;
|
|
}
|
|
default:
|
|
res = GST_BASE_SINK_CLASS (parent_class)->query (bsink, query);
|
|
break;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static void
|
|
gst_glimage_sink_cleanup_glthread (GstGLImageSink * gl_sink)
|
|
{
|
|
#if GST_GL_HAVE_GLES2
|
|
if (gl_sink->redisplay_shader) {
|
|
gst_object_unref (gl_sink->redisplay_shader);
|
|
gl_sink->redisplay_shader = NULL;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* GstElement methods
|
|
*/
|
|
|
|
static gboolean
|
|
gst_glimage_sink_stop (GstBaseSink * bsink)
|
|
{
|
|
GstGLImageSink *glimage_sink = GST_GLIMAGE_SINK (bsink);
|
|
|
|
if (glimage_sink->pool) {
|
|
gst_object_unref (glimage_sink->pool);
|
|
glimage_sink->pool = NULL;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gst_glimage_sink_set_context (GstElement * element, GstContext * context)
|
|
{
|
|
GstGLImageSink *gl_sink = GST_GLIMAGE_SINK (element);
|
|
|
|
gst_gl_handle_set_context (element, context, &gl_sink->display);
|
|
}
|
|
|
|
static GstStateChangeReturn
|
|
gst_glimage_sink_change_state (GstElement * element, GstStateChange transition)
|
|
{
|
|
GstGLImageSink *glimage_sink;
|
|
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
|
|
|
|
GST_DEBUG ("change state");
|
|
|
|
glimage_sink = GST_GLIMAGE_SINK (element);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_NULL_TO_READY:
|
|
break;
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
|
g_atomic_int_set (&glimage_sink->to_quit, 0);
|
|
if (!glimage_sink->display) {
|
|
if (!gst_gl_ensure_display (glimage_sink, &glimage_sink->display))
|
|
return GST_STATE_CHANGE_FAILURE;
|
|
}
|
|
break;
|
|
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
|
if (ret == GST_STATE_CHANGE_FAILURE)
|
|
return ret;
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
|
|
break;
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
|
{
|
|
/* mark the redisplay_texture as unavailable (=0)
|
|
* to avoid drawing
|
|
*/
|
|
GST_GLIMAGE_SINK_LOCK (glimage_sink);
|
|
glimage_sink->redisplay_texture = 0;
|
|
GST_GLIMAGE_SINK_UNLOCK (glimage_sink);
|
|
|
|
if (glimage_sink->upload) {
|
|
gst_object_unref (glimage_sink->upload);
|
|
glimage_sink->upload = NULL;
|
|
}
|
|
|
|
glimage_sink->window_id = 0;
|
|
//but do not reset glimage_sink->new_window_id
|
|
|
|
if (glimage_sink->pool) {
|
|
gst_buffer_pool_set_active (glimage_sink->pool, FALSE);
|
|
gst_object_unref (glimage_sink->pool);
|
|
glimage_sink->pool = NULL;
|
|
}
|
|
|
|
GST_VIDEO_SINK_WIDTH (glimage_sink) = 1;
|
|
GST_VIDEO_SINK_HEIGHT (glimage_sink) = 1;
|
|
if (glimage_sink->context) {
|
|
GstGLWindow *window = gst_gl_context_get_window (glimage_sink->context);
|
|
|
|
gst_gl_window_send_message (window,
|
|
GST_GL_WINDOW_CB (gst_glimage_sink_cleanup_glthread), glimage_sink);
|
|
|
|
gst_gl_window_set_resize_callback (window, NULL, NULL, NULL);
|
|
gst_gl_window_set_draw_callback (window, NULL, NULL, NULL);
|
|
gst_gl_window_set_close_callback (window, NULL, NULL, NULL);
|
|
|
|
gst_object_unref (window);
|
|
gst_object_unref (glimage_sink->context);
|
|
glimage_sink->context = NULL;
|
|
gst_object_unref (glimage_sink->display);
|
|
glimage_sink->display = NULL;
|
|
}
|
|
break;
|
|
}
|
|
case GST_STATE_CHANGE_READY_TO_NULL:
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
gst_glimage_sink_get_times (GstBaseSink * bsink, GstBuffer * buf,
|
|
GstClockTime * start, GstClockTime * end)
|
|
{
|
|
GstGLImageSink *glimagesink;
|
|
|
|
glimagesink = GST_GLIMAGE_SINK (bsink);
|
|
|
|
if (GST_BUFFER_TIMESTAMP_IS_VALID (buf)) {
|
|
*start = GST_BUFFER_TIMESTAMP (buf);
|
|
if (GST_BUFFER_DURATION_IS_VALID (buf))
|
|
*end = *start + GST_BUFFER_DURATION (buf);
|
|
else {
|
|
if (GST_VIDEO_INFO_FPS_N (&glimagesink->info) > 0) {
|
|
*end = *start +
|
|
gst_util_uint64_scale_int (GST_SECOND,
|
|
GST_VIDEO_INFO_FPS_D (&glimagesink->info),
|
|
GST_VIDEO_INFO_FPS_N (&glimagesink->info));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_glimage_sink_set_caps (GstBaseSink * bsink, GstCaps * caps)
|
|
{
|
|
GstGLImageSink *glimage_sink;
|
|
gint width;
|
|
gint height;
|
|
gboolean ok;
|
|
gint par_n, par_d;
|
|
gint display_par_n, display_par_d;
|
|
guint display_ratio_num, display_ratio_den;
|
|
GstVideoInfo vinfo;
|
|
GstStructure *structure;
|
|
GstBufferPool *newpool, *oldpool;
|
|
|
|
GST_DEBUG ("set caps with %" GST_PTR_FORMAT, caps);
|
|
|
|
glimage_sink = GST_GLIMAGE_SINK (bsink);
|
|
|
|
ok = gst_video_info_from_caps (&vinfo, caps);
|
|
if (!ok)
|
|
return FALSE;
|
|
|
|
width = GST_VIDEO_INFO_WIDTH (&vinfo);
|
|
height = GST_VIDEO_INFO_HEIGHT (&vinfo);
|
|
|
|
par_n = GST_VIDEO_INFO_PAR_N (&vinfo);
|
|
par_d = GST_VIDEO_INFO_PAR_D (&vinfo);
|
|
|
|
if (!par_n)
|
|
par_n = 1;
|
|
|
|
/* get display's PAR */
|
|
if (glimage_sink->par_n != 0 && glimage_sink->par_d != 0) {
|
|
display_par_n = glimage_sink->par_n;
|
|
display_par_d = glimage_sink->par_d;
|
|
} else {
|
|
display_par_n = 1;
|
|
display_par_d = 1;
|
|
}
|
|
|
|
ok = gst_video_calculate_display_ratio (&display_ratio_num,
|
|
&display_ratio_den, width, height, par_n, par_d, display_par_n,
|
|
display_par_d);
|
|
|
|
if (!ok)
|
|
return FALSE;
|
|
|
|
GST_TRACE ("PAR: %u/%u DAR:%u/%u", par_n, par_d, display_par_n,
|
|
display_par_d);
|
|
|
|
if (height % display_ratio_den == 0) {
|
|
GST_DEBUG ("keeping video height");
|
|
GST_VIDEO_SINK_WIDTH (glimage_sink) = (guint)
|
|
gst_util_uint64_scale_int (height, display_ratio_num,
|
|
display_ratio_den);
|
|
GST_VIDEO_SINK_HEIGHT (glimage_sink) = height;
|
|
} else if (width % display_ratio_num == 0) {
|
|
GST_DEBUG ("keeping video width");
|
|
GST_VIDEO_SINK_WIDTH (glimage_sink) = width;
|
|
GST_VIDEO_SINK_HEIGHT (glimage_sink) = (guint)
|
|
gst_util_uint64_scale_int (width, display_ratio_den, display_ratio_num);
|
|
} else {
|
|
GST_DEBUG ("approximating while keeping video height");
|
|
GST_VIDEO_SINK_WIDTH (glimage_sink) = (guint)
|
|
gst_util_uint64_scale_int (height, display_ratio_num,
|
|
display_ratio_den);
|
|
GST_VIDEO_SINK_HEIGHT (glimage_sink) = height;
|
|
}
|
|
GST_DEBUG ("scaling to %dx%d", GST_VIDEO_SINK_WIDTH (glimage_sink),
|
|
GST_VIDEO_SINK_HEIGHT (glimage_sink));
|
|
|
|
glimage_sink->info = vinfo;
|
|
if (!_ensure_gl_setup (glimage_sink))
|
|
return FALSE;
|
|
|
|
newpool = gst_gl_buffer_pool_new (glimage_sink->context);
|
|
structure = gst_buffer_pool_get_config (newpool);
|
|
gst_buffer_pool_config_set_params (structure, caps, vinfo.size, 2, 0);
|
|
gst_buffer_pool_set_config (newpool, structure);
|
|
|
|
oldpool = glimage_sink->pool;
|
|
/* we don't activate the pool yet, this will be done by downstream after it
|
|
* has configured the pool. If downstream does not want our pool we will
|
|
* activate it when we render into it */
|
|
glimage_sink->pool = newpool;
|
|
|
|
/* unref the old sink */
|
|
if (oldpool) {
|
|
/* we don't deactivate, some elements might still be using it, it will
|
|
* be deactivated when the last ref is gone */
|
|
gst_object_unref (oldpool);
|
|
}
|
|
|
|
if (glimage_sink->upload)
|
|
gst_object_unref (glimage_sink->upload);
|
|
glimage_sink->upload = gst_object_ref (GST_GL_BUFFER_POOL (newpool)->upload);
|
|
|
|
gst_gl_upload_set_format (glimage_sink->upload, &vinfo);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_glimage_sink_prepare (GstBaseSink * bsink, GstBuffer * buf)
|
|
{
|
|
GstGLImageSink *glimage_sink;
|
|
|
|
glimage_sink = GST_GLIMAGE_SINK (bsink);
|
|
|
|
GST_TRACE ("preparing buffer:%p", buf);
|
|
|
|
if (GST_VIDEO_SINK_WIDTH (glimage_sink) < 1 ||
|
|
GST_VIDEO_SINK_HEIGHT (glimage_sink) < 1) {
|
|
return GST_FLOW_NOT_NEGOTIATED;
|
|
}
|
|
|
|
if (!_ensure_gl_setup (glimage_sink))
|
|
return GST_FLOW_NOT_NEGOTIATED;
|
|
|
|
if (!gst_gl_upload_perform_with_buffer (glimage_sink->upload, buf,
|
|
&glimage_sink->next_tex))
|
|
goto upload_failed;
|
|
|
|
if (glimage_sink->window_id != glimage_sink->new_window_id) {
|
|
GstGLWindow *window = gst_gl_context_get_window (glimage_sink->context);
|
|
|
|
glimage_sink->window_id = glimage_sink->new_window_id;
|
|
gst_gl_window_set_window_handle (window, glimage_sink->window_id);
|
|
|
|
gst_object_unref (window);
|
|
}
|
|
|
|
return GST_FLOW_OK;
|
|
|
|
upload_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (glimage_sink, RESOURCE, NOT_FOUND,
|
|
("%s", "Failed to upload buffer"), (NULL));
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_glimage_sink_show_frame (GstVideoSink * vsink, GstBuffer * buf)
|
|
{
|
|
GstGLImageSink *glimage_sink;
|
|
|
|
GST_TRACE ("rendering buffer:%p", buf);
|
|
|
|
glimage_sink = GST_GLIMAGE_SINK (vsink);
|
|
|
|
GST_TRACE ("redisplay texture:%u of size:%ux%u, window size:%ux%u",
|
|
glimage_sink->next_tex, GST_VIDEO_INFO_WIDTH (&glimage_sink->info),
|
|
GST_VIDEO_INFO_HEIGHT (&glimage_sink->info),
|
|
GST_VIDEO_SINK_WIDTH (glimage_sink),
|
|
GST_VIDEO_SINK_HEIGHT (glimage_sink));
|
|
|
|
/* Avoid to release the texture while drawing */
|
|
GST_GLIMAGE_SINK_LOCK (glimage_sink);
|
|
glimage_sink->redisplay_texture = glimage_sink->next_tex;
|
|
GST_GLIMAGE_SINK_UNLOCK (glimage_sink);
|
|
|
|
/* Ask the underlying window to redraw its content */
|
|
if (!gst_glimage_sink_redisplay (glimage_sink))
|
|
goto redisplay_failed;
|
|
|
|
GST_TRACE ("post redisplay");
|
|
|
|
if (g_atomic_int_get (&glimage_sink->to_quit) != 0) {
|
|
GST_ELEMENT_ERROR (glimage_sink, RESOURCE, NOT_FOUND,
|
|
("%s", gst_gl_context_get_error ()), (NULL));
|
|
gst_gl_upload_release_buffer (glimage_sink->upload);
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
|
|
gst_gl_upload_release_buffer (glimage_sink->upload);
|
|
return GST_FLOW_OK;
|
|
|
|
/* ERRORS */
|
|
redisplay_failed:
|
|
{
|
|
gst_gl_upload_release_buffer (glimage_sink->upload);
|
|
GST_ELEMENT_ERROR (glimage_sink, RESOURCE, NOT_FOUND,
|
|
("%s", gst_gl_context_get_error ()), (NULL));
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
gst_glimage_sink_video_overlay_init (GstVideoOverlayInterface * iface)
|
|
{
|
|
iface->set_window_handle = gst_glimage_sink_set_window_handle;
|
|
iface->expose = gst_glimage_sink_expose;
|
|
}
|
|
|
|
|
|
static void
|
|
gst_glimage_sink_set_window_handle (GstVideoOverlay * overlay, guintptr id)
|
|
{
|
|
GstGLImageSink *glimage_sink = GST_GLIMAGE_SINK (overlay);
|
|
guintptr window_id = (guintptr) id;
|
|
|
|
g_return_if_fail (GST_IS_GLIMAGE_SINK (overlay));
|
|
|
|
GST_DEBUG ("set_xwindow_id %" G_GUINT64_FORMAT, (guint64) window_id);
|
|
|
|
glimage_sink->new_window_id = window_id;
|
|
}
|
|
|
|
|
|
static void
|
|
gst_glimage_sink_expose (GstVideoOverlay * overlay)
|
|
{
|
|
GstGLImageSink *glimage_sink = GST_GLIMAGE_SINK (overlay);
|
|
|
|
/* redisplay opengl scene */
|
|
if (glimage_sink->display && glimage_sink->window_id) {
|
|
|
|
if (glimage_sink->window_id != glimage_sink->new_window_id) {
|
|
GstGLWindow *window = gst_gl_context_get_window (glimage_sink->context);
|
|
|
|
glimage_sink->window_id = glimage_sink->new_window_id;
|
|
gst_gl_window_set_window_handle (window, glimage_sink->window_id);
|
|
|
|
gst_object_unref (window);
|
|
}
|
|
|
|
gst_glimage_sink_redisplay (glimage_sink);
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_glimage_sink_propose_allocation (GstBaseSink * bsink, GstQuery * query)
|
|
{
|
|
GstGLImageSink *glimage_sink = GST_GLIMAGE_SINK (bsink);
|
|
GstBufferPool *pool;
|
|
GstStructure *config;
|
|
GstCaps *caps;
|
|
guint size;
|
|
gboolean need_pool;
|
|
GstStructure *gl_context;
|
|
gchar *platform, *gl_apis;
|
|
gpointer handle;
|
|
GstAllocator *allocator = NULL;
|
|
GstAllocationParams params;
|
|
|
|
if (!_ensure_gl_setup (glimage_sink))
|
|
return FALSE;
|
|
|
|
gst_query_parse_allocation (query, &caps, &need_pool);
|
|
|
|
if (caps == NULL)
|
|
goto no_caps;
|
|
|
|
if ((pool = glimage_sink->pool))
|
|
gst_object_ref (pool);
|
|
|
|
if (pool != NULL) {
|
|
GstCaps *pcaps;
|
|
|
|
/* we had a pool, check caps */
|
|
GST_DEBUG_OBJECT (glimage_sink, "check existing pool caps");
|
|
config = gst_buffer_pool_get_config (pool);
|
|
gst_buffer_pool_config_get_params (config, &pcaps, &size, NULL, NULL);
|
|
|
|
if (!gst_caps_is_equal (caps, pcaps)) {
|
|
GST_DEBUG_OBJECT (glimage_sink, "pool has different caps");
|
|
/* different caps, we can't use this pool */
|
|
gst_object_unref (pool);
|
|
pool = NULL;
|
|
}
|
|
gst_structure_free (config);
|
|
}
|
|
|
|
if (pool == NULL && need_pool) {
|
|
GstVideoInfo info;
|
|
|
|
if (!gst_video_info_from_caps (&info, caps))
|
|
goto invalid_caps;
|
|
|
|
GST_DEBUG_OBJECT (glimage_sink, "create new pool");
|
|
pool = gst_gl_buffer_pool_new (glimage_sink->context);
|
|
|
|
/* the normal size of a frame */
|
|
size = info.size;
|
|
|
|
config = gst_buffer_pool_get_config (pool);
|
|
gst_buffer_pool_config_set_params (config, caps, size, 0, 0);
|
|
if (!gst_buffer_pool_set_config (pool, config))
|
|
goto config_failed;
|
|
}
|
|
/* we need at least 2 buffer because we hold on to the last one */
|
|
if (pool) {
|
|
gst_query_add_allocation_pool (query, pool, size, 2, 0);
|
|
gst_object_unref (pool);
|
|
}
|
|
|
|
/* we also support various metadata */
|
|
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, 0);
|
|
|
|
|
|
gl_apis =
|
|
gst_gl_api_to_string (gst_gl_context_get_gl_api (glimage_sink->context));
|
|
platform =
|
|
gst_gl_platform_to_string (gst_gl_context_get_gl_platform
|
|
(glimage_sink->context));
|
|
handle = (gpointer) gst_gl_context_get_gl_context (glimage_sink->context);
|
|
|
|
gl_context =
|
|
gst_structure_new ("GstVideoGLTextureUploadMeta", "gst.gl.GstGLContext",
|
|
GST_GL_TYPE_CONTEXT, glimage_sink->context, "gst.gl.context.handle",
|
|
G_TYPE_POINTER, handle, "gst.gl.context.type", G_TYPE_STRING, platform,
|
|
"gst.gl.context.apis", G_TYPE_STRING, gl_apis, NULL);
|
|
gst_query_add_allocation_meta (query,
|
|
GST_VIDEO_GL_TEXTURE_UPLOAD_META_API_TYPE, gl_context);
|
|
|
|
g_free (gl_apis);
|
|
g_free (platform);
|
|
gst_structure_free (gl_context);
|
|
|
|
gst_allocation_params_init (¶ms);
|
|
|
|
allocator = gst_allocator_find (GST_GL_MEMORY_ALLOCATOR);
|
|
gst_query_add_allocation_param (query, allocator, ¶ms);
|
|
gst_object_unref (allocator);
|
|
|
|
#if GST_GL_HAVE_PLATFORM_EGL
|
|
if (gst_gl_context_check_feature (glimage_sink->context,
|
|
"EGL_KHR_image_base")) {
|
|
allocator = gst_allocator_find (GST_EGL_IMAGE_MEMORY_TYPE);
|
|
gst_query_add_allocation_param (query, allocator, ¶ms);
|
|
gst_object_unref (allocator);
|
|
}
|
|
#endif
|
|
|
|
return TRUE;
|
|
|
|
/* ERRORS */
|
|
no_caps:
|
|
{
|
|
GST_DEBUG_OBJECT (bsink, "no caps specified");
|
|
return FALSE;
|
|
}
|
|
invalid_caps:
|
|
{
|
|
GST_DEBUG_OBJECT (bsink, "invalid caps specified");
|
|
return FALSE;
|
|
}
|
|
config_failed:
|
|
{
|
|
GST_DEBUG_OBJECT (bsink, "failed setting config");
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
#if GST_GL_HAVE_GLES2
|
|
/* Called in the gl thread */
|
|
static void
|
|
gst_glimage_sink_thread_init_redisplay (GstGLImageSink * gl_sink)
|
|
{
|
|
gl_sink->redisplay_shader = gst_gl_shader_new (gl_sink->context);
|
|
|
|
if (!gst_gl_shader_compile_with_default_vf_and_check
|
|
(gl_sink->redisplay_shader, &gl_sink->redisplay_attr_position_loc,
|
|
&gl_sink->redisplay_attr_texture_loc))
|
|
gst_glimage_sink_cleanup_glthread (gl_sink);
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
gst_glimage_sink_on_resize (const GstGLImageSink * gl_sink, gint width,
|
|
gint height)
|
|
{
|
|
/* Here gl_sink members (ex:gl_sink->info) have a life time of set_caps.
|
|
* It means that they cannot not change between two set_caps
|
|
*/
|
|
const GstGLFuncs *gl = gl_sink->context->gl_vtable;
|
|
|
|
GST_TRACE ("GL Window resized to %ux%u", width, height);
|
|
|
|
/* check if a client reshape callback is registered */
|
|
if (gl_sink->clientReshapeCallback)
|
|
gl_sink->clientReshapeCallback (width, height, gl_sink->client_data);
|
|
|
|
/* default reshape */
|
|
else {
|
|
if (gl_sink->keep_aspect_ratio) {
|
|
GstVideoRectangle src, dst, result;
|
|
|
|
src.x = 0;
|
|
src.y = 0;
|
|
src.w = GST_VIDEO_SINK_WIDTH (gl_sink);
|
|
src.h = GST_VIDEO_SINK_HEIGHT (gl_sink);
|
|
|
|
dst.x = 0;
|
|
dst.y = 0;
|
|
dst.w = width;
|
|
dst.h = height;
|
|
|
|
gst_video_sink_center_rect (src, dst, &result, TRUE);
|
|
gl->Viewport (result.x, result.y, result.w, result.h);
|
|
} else {
|
|
gl->Viewport (0, 0, width, height);
|
|
}
|
|
#if GST_GL_HAVE_OPENGL
|
|
if (USING_OPENGL (gl_sink->context)) {
|
|
gl->MatrixMode (GL_PROJECTION);
|
|
gl->LoadIdentity ();
|
|
gluOrtho2D (0, width, 0, height);
|
|
gl->MatrixMode (GL_MODELVIEW);
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
gst_glimage_sink_on_draw (const GstGLImageSink * gl_sink)
|
|
{
|
|
/* Here gl_sink members (ex:gl_sink->info) have a life time of set_caps.
|
|
* It means that they cannot not change between two set_caps as well as
|
|
* for the redisplay_texture size.
|
|
* Whereas redisplay_texture id changes every sink_render
|
|
*/
|
|
|
|
const GstGLFuncs *gl = NULL;
|
|
GstGLWindow *window = NULL;
|
|
|
|
g_return_if_fail (GST_IS_GLIMAGE_SINK (gl_sink));
|
|
|
|
gl = gl_sink->context->gl_vtable;
|
|
|
|
GST_GLIMAGE_SINK_LOCK (gl_sink);
|
|
|
|
/* check if texture is ready for being drawn */
|
|
if (!gl_sink->redisplay_texture) {
|
|
GST_GLIMAGE_SINK_UNLOCK (gl_sink);
|
|
return;
|
|
}
|
|
|
|
window = gst_gl_context_get_window (gl_sink->context);
|
|
window->is_drawing = TRUE;
|
|
|
|
/* opengl scene */
|
|
GST_TRACE ("redrawing texture:%u", gl_sink->redisplay_texture);
|
|
|
|
/* make sure that the environnement is clean */
|
|
gst_gl_context_clear_shader (gl_sink->context);
|
|
|
|
#if GST_GL_HAVE_OPENGL
|
|
if (USING_OPENGL (gl_sink->context))
|
|
gl->Disable (GL_TEXTURE_2D);
|
|
#endif
|
|
|
|
gl->BindTexture (GL_TEXTURE_2D, 0);
|
|
|
|
/* check if a client draw callback is registered */
|
|
if (gl_sink->clientDrawCallback) {
|
|
|
|
gboolean doRedisplay =
|
|
gl_sink->clientDrawCallback (gl_sink->redisplay_texture,
|
|
GST_VIDEO_INFO_WIDTH (&gl_sink->info),
|
|
GST_VIDEO_INFO_HEIGHT (&gl_sink->info),
|
|
gl_sink->client_data);
|
|
|
|
if (doRedisplay)
|
|
gst_gl_window_draw_unlocked (window,
|
|
GST_VIDEO_INFO_WIDTH (&gl_sink->info),
|
|
GST_VIDEO_INFO_HEIGHT (&gl_sink->info));
|
|
}
|
|
/* default opengl scene */
|
|
else {
|
|
#if GST_GL_HAVE_OPENGL
|
|
if (USING_OPENGL (gl_sink->context)) {
|
|
GLfloat verts[8] = { 1.0f, 1.0f,
|
|
-1.0f, 1.0f,
|
|
-1.0f, -1.0f,
|
|
1.0f, -1.0f
|
|
};
|
|
GLfloat texcoords[8] = { 1.0f, 0.0f,
|
|
0.0f, 0.0f,
|
|
0.0f, 1.0f,
|
|
1.0f, 1.0f
|
|
};
|
|
|
|
gl->ClearColor (0.0, 0.0, 0.0, 0.0);
|
|
gl->Clear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
|
|
|
gl->MatrixMode (GL_PROJECTION);
|
|
gl->LoadIdentity ();
|
|
|
|
gl->Enable (GL_TEXTURE_2D);
|
|
gl->BindTexture (GL_TEXTURE_2D, gl_sink->redisplay_texture);
|
|
|
|
gl->EnableClientState (GL_VERTEX_ARRAY);
|
|
gl->EnableClientState (GL_TEXTURE_COORD_ARRAY);
|
|
gl->VertexPointer (2, GL_FLOAT, 0, &verts);
|
|
gl->TexCoordPointer (2, GL_FLOAT, 0, &texcoords);
|
|
|
|
gl->DrawArrays (GL_TRIANGLE_FAN, 0, 4);
|
|
|
|
gl->DisableClientState (GL_VERTEX_ARRAY);
|
|
gl->DisableClientState (GL_TEXTURE_COORD_ARRAY);
|
|
|
|
gl->Disable (GL_TEXTURE_2D);
|
|
}
|
|
#endif
|
|
#if GST_GL_HAVE_GLES2
|
|
if (USING_GLES2 (gl_sink->context)) {
|
|
const GLfloat vVertices[] = { 1.0f, 1.0f, 0.0f,
|
|
1.0f, 0.0f,
|
|
-1.0f, 1.0f, 0.0f,
|
|
0.0f, 0.0f,
|
|
-1.0f, -1.0f, 0.0f,
|
|
0.0f, 1.0f,
|
|
1.0f, -1.0f, 0.0f,
|
|
1.0f, 1.0f
|
|
};
|
|
|
|
GLushort indices[] = { 0, 1, 2, 0, 2, 3 };
|
|
|
|
gl->ClearColor (0.0, 0.0, 0.0, 0.0);
|
|
gl->Clear (GL_COLOR_BUFFER_BIT);
|
|
|
|
gst_gl_shader_use (gl_sink->redisplay_shader);
|
|
|
|
/* Load the vertex position */
|
|
gl->VertexAttribPointer (gl_sink->redisplay_attr_position_loc, 3,
|
|
GL_FLOAT, GL_FALSE, 5 * sizeof (GLfloat), vVertices);
|
|
|
|
/* Load the texture coordinate */
|
|
gl->VertexAttribPointer (gl_sink->redisplay_attr_texture_loc, 2,
|
|
GL_FLOAT, GL_FALSE, 5 * sizeof (GLfloat), &vVertices[3]);
|
|
|
|
gl->EnableVertexAttribArray (gl_sink->redisplay_attr_position_loc);
|
|
gl->EnableVertexAttribArray (gl_sink->redisplay_attr_texture_loc);
|
|
|
|
gl->ActiveTexture (GL_TEXTURE0);
|
|
gl->BindTexture (GL_TEXTURE_2D, gl_sink->redisplay_texture);
|
|
gst_gl_shader_set_uniform_1i (gl_sink->redisplay_shader, "tex", 0);
|
|
|
|
gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, indices);
|
|
}
|
|
#endif
|
|
} /* end default opengl scene */
|
|
|
|
window->is_drawing = FALSE;
|
|
gst_object_unref (window);
|
|
|
|
GST_GLIMAGE_SINK_UNLOCK (gl_sink);
|
|
}
|
|
|
|
static void
|
|
gst_glimage_sink_on_close (GstGLImageSink * gl_sink)
|
|
{
|
|
gst_gl_context_set_error (gl_sink->context, "Output window was closed");
|
|
|
|
g_atomic_int_set (&gl_sink->to_quit, 1);
|
|
}
|
|
|
|
static gboolean
|
|
gst_glimage_sink_redisplay (GstGLImageSink * gl_sink)
|
|
{
|
|
GstGLWindow *window;
|
|
gboolean alive;
|
|
|
|
window = gst_gl_context_get_window (gl_sink->context);
|
|
if (!window)
|
|
return FALSE;
|
|
|
|
if (gst_gl_window_is_running (window)) {
|
|
|
|
#if GST_GL_HAVE_GLES2
|
|
if (USING_GLES2 (gl_sink->context)) {
|
|
if (G_UNLIKELY (!gl_sink->redisplay_shader)) {
|
|
gst_gl_window_send_message (window,
|
|
GST_GL_WINDOW_CB (gst_glimage_sink_thread_init_redisplay), gl_sink);
|
|
|
|
/* if the shader is still null it means it failed to be useable */
|
|
if (G_UNLIKELY (!gl_sink->redisplay_shader)) {
|
|
gst_object_unref (window);
|
|
return FALSE;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/* Drawing is asynchronous: gst_gl_window_draw is not blocking
|
|
* It means that it does not wait for stuff to be executed in other threads
|
|
*/
|
|
gst_gl_window_draw (window, GST_VIDEO_SINK_WIDTH (gl_sink),
|
|
GST_VIDEO_SINK_HEIGHT (gl_sink));
|
|
}
|
|
alive = gst_gl_window_is_running (window);
|
|
gst_object_unref (window);
|
|
|
|
return alive;
|
|
}
|