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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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15dbe49f81
Original commit message from CVS: * sys/glsink/glimagesink.c: * sys/glsink/glimagesink.h: * sys/glsink/glvideo.c: * sys/glsink/glvideo.h: * sys/glsink/gstglbuffer.c: * sys/glsink/gstglbuffer.h: * sys/glsink/gstgldownload.c: * sys/glsink/gstglfilter.c: * sys/glsink/gstglupload.c: Rewrite a bunch of code to use textures as the intermediate instead of renderbuffers. upload, download, filtering all work.
296 lines
8.2 KiB
C
296 lines
8.2 KiB
C
/*
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* GStreamer
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* Copyright (C) 2007 David Schleef <ds@schleef.org>
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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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/gst.h>
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#include <gst/video/video.h>
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#include <gstglbuffer.h>
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#define GST_CAT_DEFAULT gst_gl_download_debug
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GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
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#define GST_TYPE_GL_DOWNLOAD (gst_gl_download_get_type())
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#define GST_GL_DOWNLOAD(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_DOWNLOAD,GstGLDownload))
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#define GST_IS_GL_DOWNLOAD(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_DOWNLOAD))
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#define GST_GL_DOWNLOAD_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_GL_DOWNLOAD,GstGLDownloadClass))
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#define GST_IS_GL_DOWNLOAD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_GL_DOWNLOAD))
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#define GST_GL_DOWNLOAD_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_GL_DOWNLOAD,GstGLDownloadClass))
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typedef struct _GstGLDownload GstGLDownload;
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typedef struct _GstGLDownloadClass GstGLDownloadClass;
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typedef void (*GstGLDownloadProcessFunc) (GstGLDownload *, guint8 *, guint);
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struct _GstGLDownload
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{
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GstElement element;
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GstPad *srcpad;
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GstPad *sinkpad;
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/* < private > */
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GstGLDisplay *display;
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GstVideoFormat format;
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int width;
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int height;
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};
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struct _GstGLDownloadClass
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{
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GstElementClass element_class;
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};
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static const GstElementDetails element_details = GST_ELEMENT_DETAILS ("FIXME",
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"Filter/Effect",
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"FIXME example filter",
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"FIXME <fixme@fixme.com>");
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#define GST_GL_VIDEO_CAPS "video/x-raw-gl"
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static GstStaticPadTemplate gst_gl_download_src_pad_template =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_VIDEO_CAPS_RGBx)
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);
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static GstStaticPadTemplate gst_gl_download_sink_pad_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_GL_VIDEO_CAPS)
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);
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enum
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{
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PROP_0
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};
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#define DEBUG_INIT(bla) \
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GST_DEBUG_CATEGORY_INIT (gst_gl_download_debug, "gldownload", 0, "gldownload element");
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GST_BOILERPLATE_FULL (GstGLDownload, gst_gl_download, GstElement,
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GST_TYPE_ELEMENT, DEBUG_INIT);
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static void gst_gl_download_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_gl_download_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static GstFlowReturn gst_gl_download_chain (GstPad * pad, GstBuffer * buf);
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static void gst_gl_download_reset (GstGLDownload * download);
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static GstStateChangeReturn
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gst_gl_download_change_state (GstElement * element, GstStateChange transition);
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static gboolean gst_gl_download_sink_setcaps (GstPad * pad, GstCaps * caps);
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static void
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gst_gl_download_base_init (gpointer klass)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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gst_element_class_set_details (element_class, &element_details);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_gl_download_src_pad_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_gl_download_sink_pad_template));
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}
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static void
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gst_gl_download_class_init (GstGLDownloadClass * klass)
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{
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GObjectClass *gobject_class;
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gobject_class = (GObjectClass *) klass;
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gobject_class->set_property = gst_gl_download_set_property;
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gobject_class->get_property = gst_gl_download_get_property;
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GST_ELEMENT_CLASS (klass)->change_state = gst_gl_download_change_state;
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}
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static void
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gst_gl_download_init (GstGLDownload * download, GstGLDownloadClass * klass)
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{
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gst_element_create_all_pads (GST_ELEMENT (download));
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download->sinkpad =
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gst_element_get_static_pad (GST_ELEMENT (download), "sink");
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download->srcpad = gst_element_get_static_pad (GST_ELEMENT (download), "src");
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gst_pad_set_setcaps_function (download->sinkpad,
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gst_gl_download_sink_setcaps);
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gst_pad_set_chain_function (download->sinkpad, gst_gl_download_chain);
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gst_gl_download_reset (download);
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}
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static void
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gst_gl_download_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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//GstGLDownload *download = GST_GL_DOWNLOAD (object);
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switch (prop_id) {
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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_gl_download_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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//GstGLDownload *download = GST_GL_DOWNLOAD (object);
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switch (prop_id) {
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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_gl_download_reset (GstGLDownload * download)
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{
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if (download->display) {
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g_object_unref (download->display);
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download->display = NULL;
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}
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download->format = GST_VIDEO_FORMAT_RGBx;
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}
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static gboolean
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gst_gl_download_start (GstGLDownload * download)
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{
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download->format = GST_VIDEO_FORMAT_RGBx;
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return TRUE;
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}
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static gboolean
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gst_gl_download_stop (GstGLDownload * download)
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{
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gst_gl_download_reset (download);
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return TRUE;
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}
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static gboolean
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gst_gl_download_sink_setcaps (GstPad * pad, GstCaps * caps)
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{
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GstGLDownload *download;
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gboolean ret;
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GstStructure *structure;
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GstCaps *srccaps;
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download = GST_GL_DOWNLOAD (gst_pad_get_parent (pad));
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GST_ERROR ("called with %" GST_PTR_FORMAT, caps);
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structure = gst_caps_get_structure (caps, 0);
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ret = gst_structure_get_int (structure, "width", &download->width);
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ret &= gst_structure_get_int (structure, "height", &download->height);
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if (!ret) {
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GST_ERROR ("bad caps");
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return FALSE;
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}
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srccaps = gst_video_format_new_caps (download->format,
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download->width, download->height, 30, 1, 1, 1);
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GST_ERROR ("srccaps %" GST_PTR_FORMAT, srccaps);
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ret = gst_pad_set_caps (download->srcpad, srccaps);
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gst_caps_unref (srccaps);
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return ret;
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}
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static GstFlowReturn
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gst_gl_download_chain (GstPad * pad, GstBuffer * buf)
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{
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GstGLDownload *download;
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GstGLBuffer *inbuf = GST_GL_BUFFER (buf);
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GstBuffer *outbuf;
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download = GST_GL_DOWNLOAD (gst_pad_get_parent (pad));
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outbuf =
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gst_buffer_new_and_alloc (gst_video_format_get_size (download->format,
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inbuf->width, inbuf->height));
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gst_buffer_copy_metadata (GST_BUFFER (outbuf), buf,
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GST_BUFFER_COPY_TIMESTAMPS | GST_BUFFER_COPY_FLAGS);
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gst_buffer_set_caps (GST_BUFFER (outbuf), GST_PAD_CAPS (download->srcpad));
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GST_DEBUG ("downloading %p size %d",
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GST_BUFFER_DATA (outbuf), GST_BUFFER_SIZE (outbuf));
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gst_gl_buffer_download (inbuf, GST_BUFFER_DATA (outbuf));
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gst_pad_push (download->srcpad, GST_BUFFER (outbuf));
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gst_object_unref (download);
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return GST_FLOW_OK;
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}
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static GstStateChangeReturn
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gst_gl_download_change_state (GstElement * element, GstStateChange transition)
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{
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GstGLDownload *download;
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GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
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GST_DEBUG ("change state");
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download = GST_GL_DOWNLOAD (element);
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switch (transition) {
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case GST_STATE_CHANGE_NULL_TO_READY:
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break;
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case GST_STATE_CHANGE_READY_TO_PAUSED:
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gst_gl_download_start (download);
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break;
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case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
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break;
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default:
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break;
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}
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ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
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if (ret == GST_STATE_CHANGE_FAILURE)
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return ret;
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switch (transition) {
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case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
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break;
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case GST_STATE_CHANGE_PAUSED_TO_READY:
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gst_gl_download_stop (download);
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break;
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case GST_STATE_CHANGE_READY_TO_NULL:
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break;
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default:
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break;
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}
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return ret;
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}
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