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authorGernot Ziegler <gz@lysator.liu.se>2003-10-27 11:27:32 +0000
committerGernot Ziegler <gz@lysator.liu.se>2003-10-27 11:27:32 +0000
commitbf156442acd3af570fae1bfe4cd1641ca704e09b (patch)
tree314a5ce58512a00c5e13c0bda5cba0443546d0a7 /sys/glsink/gstglsink.c
parentaf0b12d90106069017dcffcd46bfa056eb2dde9b (diff)
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glsink files checked in
Original commit message from CVS: glsink files checked in
Diffstat (limited to 'sys/glsink/gstglsink.c')
-rw-r--r--sys/glsink/gstglsink.c650
1 files changed, 650 insertions, 0 deletions
diff --git a/sys/glsink/gstglsink.c b/sys/glsink/gstglsink.c
new file mode 100644
index 00000000..d3e53f22
--- /dev/null
+++ b/sys/glsink/gstglsink.c
@@ -0,0 +1,650 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <config.h>
+#include <string.h>
+
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <GL/glx.h>
+#include <GL/gl.h>
+#include <GL/glu.h>
+#include <sys/time.h>
+
+/*#define GST_DEBUG_FORCE_DISABLE*/
+
+#include "gstglsink.h"
+
+/* elementfactory information */
+static GstElementDetails gst_glsink_details = {
+ "OpenGL Sink/GLX",
+ "Sink/GLVideo",
+ "LGPL",
+ "An OpenGL based video sink - uses OpenGL and GLX to draw video, utilizing different acceleration options",
+ VERSION,
+ "Gernot Ziegler <gz@lysator.liu.se>",
+ "(C) 2002",
+};
+
+/* glsink signals and args */
+enum {
+ LAST_SIGNAL
+};
+
+
+enum {
+ ARG_0,
+ ARG_WIDTH,
+ ARG_HEIGHT,
+ ARG_FRAMES_DISPLAYED,
+ ARG_FRAME_TIME,
+ ARG_HOOK,
+ ARG_MUTE,
+ ARG_REPAINT
+};
+
+/* GLsink class */
+#define GST_TYPE_GLSINK (gst_glsink_get_type())
+#define GST_GLSINK(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_GLSINK,GstGLSink))
+#define GST_GLSINK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_GLSINK,GstGLSink))
+#define GST_IS_GLSINK(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_GLSINK))
+#define GST_IS_GLSINK_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_GLSINK))
+
+typedef struct _GstGLSink GstGLSink;
+typedef struct _GstGLSinkClass GstGLSinkClass;
+
+struct _GstGLSink {
+ GstElement element;
+
+ GstPad *sinkpad;
+
+ gint frames_displayed;
+ guint64 frame_time;
+ gint width, height;
+ gboolean muted;
+ GstBuffer *last_image; /* not thread safe ? */
+
+ GstClock *clock;
+
+ /* bufferpool stuff */
+ GstBufferPool *bufferpool;
+ GMutex *cache_lock;
+ GList *cache;
+
+ /* plugins */
+ GstImagePlugin* plugin;
+ GstImageConnection *conn;
+
+ /* allow anybody to hook in here */
+ GstImageInfo *hook;
+};
+
+struct _GstGLSinkClass {
+ GstElementClass parent_class;
+
+ /* plugins */
+ GList *plugins;
+};
+
+
+static GType gst_glsink_get_type (void);
+static void gst_glsink_class_init (GstGLSinkClass *klass);
+static void gst_glsink_init (GstGLSink *sink);
+/* static void gst_glsink_dispose (GObject *object); */
+
+static void gst_glsink_chain (GstPad *pad, GstBuffer *buf);
+static void gst_glsink_set_clock (GstElement *element, GstClock *clock);
+static GstElementStateReturn gst_glsink_change_state (GstElement *element);
+static GstPadLinkReturn gst_glsink_sinkconnect (GstPad *pad, GstCaps *caps);
+static GstCaps * gst_glsink_getcaps (GstPad *pad, GstCaps *caps);
+static GstBufferPool* gst_glsink_get_bufferpool (GstPad *pad);
+
+static void gst_glsink_set_property (GObject *object, guint prop_id,
+ const GValue *value, GParamSpec *pspec);
+static void gst_glsink_get_property (GObject *object, guint prop_id,
+ GValue *value, GParamSpec *pspec);
+
+static void gst_glsink_release_conn (GstGLSink *sink);
+static void gst_glsink_append_cache (GstGLSink *sink, GstImageData *image);
+static gboolean gst_glsink_set_caps (GstGLSink *sink, GstCaps *caps);
+/* bufferpool stuff */
+static GstBuffer* gst_glsink_buffer_new (GstBufferPool *pool,
+ gint64 location,
+ guint size, gpointer user_data);
+static void gst_glsink_buffer_free (GstBufferPool *pool,
+ GstBuffer *buffer,
+ gpointer user_data);
+
+/* prototypes from plugins */
+extern GstImagePlugin* get_gl_rgbimage_plugin (void);
+extern GstImagePlugin* get_gl_nvimage_plugin (void);
+/* default output */
+extern void gst_glxwindow_new (GstGLSink *sink);
+
+
+static GstPadTemplate *sink_template;
+
+static GstElementClass *parent_class = NULL;
+/* static guint gst_glsink_signals[LAST_SIGNAL] = { 0 }; */
+
+static GType
+gst_glsink_get_type (void)
+{
+ static GType videosink_type = 0;
+
+ if (!videosink_type) {
+ static const GTypeInfo videosink_info = {
+ sizeof(GstGLSinkClass),
+ NULL,
+ NULL,
+ (GClassInitFunc) gst_glsink_class_init,
+ NULL,
+ NULL,
+ sizeof(GstGLSink),
+ 0,
+ (GInstanceInitFunc) gst_glsink_init,
+ };
+ videosink_type = g_type_register_static(GST_TYPE_ELEMENT, "GstGLSink", &videosink_info, 0);
+ }
+ return videosink_type;
+}
+
+static void
+gst_glsink_class_init (GstGLSinkClass *klass)
+{
+ GObjectClass *gobject_class;
+ GstElementClass *gstelement_class;
+
+ gobject_class = (GObjectClass *) klass;
+ gstelement_class = (GstElementClass *) klass;
+
+ parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
+
+ gobject_class->set_property = gst_glsink_set_property;
+ gobject_class->get_property = gst_glsink_get_property;
+
+ g_object_class_install_property (gobject_class, ARG_WIDTH,
+ g_param_spec_int ("width", "Width", "The video width",
+ G_MININT, G_MAXINT, 0, G_PARAM_READABLE)); /* CHECKME */
+ g_object_class_install_property (gobject_class, ARG_HEIGHT,
+ g_param_spec_int ("height", "Height", "The video height",
+ G_MININT, G_MAXINT, 0, G_PARAM_READABLE)); /* CHECKME */
+ g_object_class_install_property (gobject_class, ARG_FRAMES_DISPLAYED,
+ g_param_spec_int ("frames_displayed", "Frames Displayed", "The number of frames displayed so far",
+ G_MININT,G_MAXINT, 0, G_PARAM_READWRITE)); /* CHECKME */
+ g_object_class_install_property (gobject_class, ARG_FRAME_TIME,
+ g_param_spec_int ("frame_time", "Frame time", "The interval between frames",
+ G_MININT, G_MAXINT, 0, G_PARAM_READWRITE)); /* CHECKME */
+ g_object_class_install_property (gobject_class, ARG_HOOK,
+ g_param_spec_pointer ("hook", "Hook", "The object receiving the output", G_PARAM_WRITABLE));
+ g_object_class_install_property (gobject_class, ARG_MUTE,
+ g_param_spec_boolean ("mute", "Mute", "mute the output ?", FALSE, G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_class, ARG_REPAINT,
+ g_param_spec_boolean ("repaint", "Repaint", "repaint the current frame", FALSE, G_PARAM_WRITABLE));
+
+ /* gobject_class->dispose = gst_glsink_dispose; */
+
+ gstelement_class->change_state = gst_glsink_change_state;
+ gstelement_class->set_clock = gst_glsink_set_clock;
+
+ /* plugins */
+ klass->plugins = NULL;
+ //klass->plugins = g_list_append (klass->plugins, get_xvimage_plugin ());
+ klass->plugins = g_list_append (klass->plugins, get_gl_rgbimage_plugin ());
+}
+
+
+/*
+ GLSink has its own Buffer management - this allows special plugins to create special memory areas for
+ buffer upload
+*/
+static void
+gst_glsink_init (GstGLSink *sink)
+{
+ sink->sinkpad = gst_pad_new_from_template (sink_template, "sink");
+ gst_element_add_pad (GST_ELEMENT (sink), sink->sinkpad);
+ gst_pad_set_chain_function (sink->sinkpad, gst_glsink_chain);
+ gst_pad_set_link_function (sink->sinkpad, gst_glsink_sinkconnect);
+ gst_pad_set_getcaps_function (sink->sinkpad, gst_glsink_getcaps);
+ gst_pad_set_bufferpool_function (sink->sinkpad, gst_glsink_get_bufferpool);
+
+ sink->last_image = NULL;
+ sink->width = 0;
+ sink->height = 0;
+ sink->muted = FALSE;
+ sink->clock = NULL;
+ GST_FLAG_SET(sink, GST_ELEMENT_THREAD_SUGGESTED);
+ GST_FLAG_SET (sink, GST_ELEMENT_EVENT_AWARE);
+
+ /* create bufferpool and image cache */
+ GST_DEBUG (0, "glsink: creating bufferpool");
+ sink->bufferpool = gst_buffer_pool_new (
+ NULL,
+ NULL,
+ (GstBufferPoolBufferNewFunction)gst_glsink_buffer_new,
+ NULL,
+ (GstBufferPoolBufferFreeFunction)gst_glsink_buffer_free,
+ sink);
+ sink->cache_lock = g_mutex_new();
+ sink->cache = NULL;
+
+ /* plugins */
+ sink->plugin = NULL;
+ sink->conn = NULL;
+
+ /* do initialization of default hook here */
+ gst_glxwindow_new (sink);
+}
+
+static void
+gst_glsink_release_conn (GstGLSink *sink)
+{
+ if (sink->conn == NULL) return;
+
+ /* free last image if any */
+ if (sink->last_image != NULL)
+ {
+ gst_buffer_unref (sink->last_image);
+ sink->last_image = NULL;
+ }
+ /* free cache */
+ g_mutex_lock (sink->cache_lock);
+ while (sink->cache)
+ {
+ sink->plugin->free_image ((GstImageData *) sink->cache->data);
+ sink->cache = g_list_delete_link (sink->cache, sink->cache);
+ }
+ g_mutex_unlock (sink->cache_lock);
+
+ /* release connection */
+ sink->conn->free_conn (sink->conn);
+ sink->conn = NULL;
+}
+
+static void
+gst_glsink_append_cache (GstGLSink *sink, GstImageData *image)
+{
+ g_mutex_lock (sink->cache_lock);
+ sink->cache = g_list_prepend (sink->cache, image);
+ g_mutex_unlock (sink->cache_lock);
+}
+
+/*
+ Create a new buffer to hand up the chain.
+ This allows the plugins to make its own decoding buffers
+ */
+static GstBuffer*
+gst_glsink_buffer_new (GstBufferPool *pool, gint64 location,
+ guint size, gpointer user_data)
+{
+ GstGLSink *sink;
+ GstBuffer *buffer;
+ GstImageData *image;
+
+ sink = GST_GLSINK (user_data);
+
+ if (sink->cache != NULL) {
+ g_mutex_lock (sink->cache_lock);
+ image = (GstImageData *) sink->cache->data;
+ sink->cache = g_list_delete_link (sink->cache, sink->cache);
+ g_mutex_unlock (sink->cache_lock);
+ } else {
+ image = sink->plugin->get_image (sink->hook, sink->conn);
+ }
+
+ buffer = gst_buffer_new ();
+ GST_BUFFER_DATA (buffer) = image->data;
+ GST_BUFFER_SIZE (buffer) = image->size;
+ GST_BUFFER_POOL_PRIVATE (buffer) = image;
+
+ return buffer;
+}
+
+/*
+ Free a buffer that the chain doesn't need anymore.
+*/
+static void
+gst_glsink_buffer_free (GstBufferPool *pool, GstBuffer *buffer, gpointer user_data)
+{
+ GstGLSink *sink = GST_GLSINK (gst_buffer_pool_get_user_data (GST_BUFFER_BUFFERPOOL (buffer)));
+
+ gst_glsink_append_cache (sink, (GstImageData *) GST_BUFFER_POOL_PRIVATE (buffer));
+
+ /* set to NULL so the data is not freed */
+ GST_BUFFER_DATA (buffer) = NULL;
+
+ gst_buffer_default_free (buffer);
+}
+
+static GstBufferPool*
+gst_glsink_get_bufferpool (GstPad *pad)
+{
+ GstGLSink *sink = GST_GLSINK (gst_pad_get_parent (pad));
+
+ return sink->bufferpool;
+}
+
+/*
+ Set the caps that the application desires.
+ Go through the plugin list, finding the plugin that first fits the given parameters
+*/
+static gboolean
+gst_glsink_set_caps (GstGLSink *sink, GstCaps *caps)
+{
+ GList *list = ((GstGLSinkClass *) G_OBJECT_GET_CLASS (sink))->plugins;
+ GstImageConnection *conn = NULL;
+ while (list)
+ {
+ GstImagePlugin *plugin = (GstImagePlugin *) list->data;
+ if ((conn = plugin->set_caps (sink->hook, caps)) != NULL)
+ {
+ gst_glsink_release_conn (sink);
+ sink->conn = conn;
+ sink->plugin = plugin;
+ sink->conn->open_conn (sink->conn, sink->hook);
+ return TRUE;
+ }
+ list = g_list_next (list);
+ }
+ return FALSE;
+}
+
+/**
+Link the input video sink internally.
+*/
+static GstPadLinkReturn
+gst_glsink_sinkconnect (GstPad *pad, GstCaps *caps)
+{
+ GstGLSink *sink;
+ guint32 fourcc, print_format;
+
+ sink = GST_GLSINK (gst_pad_get_parent (pad));
+
+ /* we are not going to act on variable caps */
+ if (!GST_CAPS_IS_FIXED (caps))
+ return GST_PAD_LINK_DELAYED;
+
+ /* try to set the caps on the output */
+ if (gst_glsink_set_caps (sink, caps) == FALSE)
+ {
+ return GST_PAD_LINK_REFUSED;
+ }
+
+ /* remember width & height */
+ gst_caps_get_int (caps, "width", &sink->width);
+ gst_caps_get_int (caps, "height", &sink->height);
+
+ gst_caps_get_fourcc_int (caps, "format", &fourcc);
+ print_format = GULONG_FROM_LE (fourcc);
+ GST_DEBUG (0, "glsink: setting %08x (%4.4s) %dx%d\n",
+ fourcc, (gchar*)&print_format, sink->width, sink->height);
+
+ /* emit signal */
+ g_object_freeze_notify (G_OBJECT (sink));
+ g_object_notify (G_OBJECT (sink), "width");
+ g_object_notify (G_OBJECT (sink), "height");
+ g_object_thaw_notify (G_OBJECT (sink));
+
+ return GST_PAD_LINK_OK;
+}
+static GstCaps *
+gst_glsink_getcaps (GstPad *pad, GstCaps *caps)
+{
+ /* what is the "caps" parameter good for? */
+ GstGLSink *sink = GST_GLSINK (gst_pad_get_parent (pad));
+ GstCaps *ret = NULL;
+ GList *list = ((GstGLSinkClass *) G_OBJECT_GET_CLASS (sink))->plugins;
+
+ while (list)
+ {
+ ret = gst_caps_append (ret, ((GstImagePlugin *) list->data)->get_caps (sink->hook));
+ list = g_list_next (list);
+ }
+
+ return ret;
+}
+
+static void
+gst_glsink_set_clock (GstElement *element, GstClock *clock)
+{
+ GstGLSink *sink = GST_GLSINK (element);
+
+ sink->clock = clock;
+}
+static void
+gst_glsink_chain (GstPad *pad, GstBuffer *buf)
+{
+ GstGLSink *sink;
+ GstClockTime time = GST_BUFFER_TIMESTAMP (buf);
+ GstBuffer *buffer;
+ static int frame_drops = 0;
+
+ g_return_if_fail (pad != NULL);
+ g_return_if_fail (GST_IS_PAD (pad));
+ g_return_if_fail (buf != NULL);
+
+ sink = GST_GLSINK (gst_pad_get_parent (pad));
+
+ if (GST_IS_EVENT (buf)) {
+ GstEvent *event = GST_EVENT (buf);
+
+ switch (GST_EVENT_TYPE (event)) {
+ default:
+ gst_pad_event_default (pad, event);
+ }
+ return;
+ }
+ GST_DEBUG (0,"glsink: clock wait: %llu %u",
+ GST_BUFFER_TIMESTAMP (buf), GST_BUFFER_SIZE (buf));
+
+#if 0
+ if (sink->clock && time != -1) {
+ if (time < gst_clock_get_time(sink->clock))
+ {
+ g_warning("Frame drop (%d consecutive) !!", frame_drops);
+ /* we are going to drop late buffers */
+ gst_buffer_unref (buf);
+ frame_drops++;
+ return;
+ }
+ frame_drops = 0; // we made it - reset time
+
+ GstClockReturn ret;
+ GstClockID id = gst_clock_new_single_shot_id (sink->clock, GST_BUFFER_TIMESTAMP (buf));
+
+ ret = gst_element_clock_wait (GST_ELEMENT (sink), id, NULL);
+ gst_clock_id_free (id);
+
+ /* we are going to drop early buffers */
+ if (ret == GST_CLOCK_EARLY) {
+ gst_buffer_unref (buf);
+ return;
+ }
+ }
+#endif
+
+ /* call the notify _before_ displaying so the handlers can react */
+ sink->frames_displayed++;
+ g_object_notify (G_OBJECT (sink), "frames_displayed");
+
+ if (!sink->muted)
+ {
+ /* free last_image, if any */
+ if (sink->last_image != NULL)
+ gst_buffer_unref (sink->last_image);
+ if (sink->bufferpool && GST_BUFFER_BUFFERPOOL (buf) == sink->bufferpool) {
+ sink->plugin->put_image (sink->hook, (GstImageData *) GST_BUFFER_POOL_PRIVATE (buf));
+ sink->last_image = buf;
+ } else {
+ buffer = gst_buffer_new_from_pool (gst_glsink_get_bufferpool (sink->sinkpad),
+ 0, GST_BUFFER_SIZE (buf));
+ memcpy (GST_BUFFER_DATA (buffer), GST_BUFFER_DATA (buf),
+ GST_BUFFER_SIZE (buf) > GST_BUFFER_SIZE (buffer) ?
+ GST_BUFFER_SIZE (buffer) : GST_BUFFER_SIZE (buf));
+
+ sink->plugin->put_image (sink->hook, (GstImageData *) GST_BUFFER_POOL_PRIVATE (buffer));
+
+ sink->last_image = buffer;
+ gst_buffer_unref (buf);
+ }
+ }
+
+}
+
+
+static void
+gst_glsink_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
+{
+ GstGLSink *sink;
+
+ /* it's not null if we got it, but it might not be ours */
+ g_return_if_fail (GST_IS_GLSINK (object));
+
+ sink = GST_GLSINK (object);
+
+ switch (prop_id) {
+ case ARG_FRAMES_DISPLAYED:
+ sink->frames_displayed = g_value_get_int (value);
+ g_object_notify (object, "frames_displayed");
+ break;
+ case ARG_FRAME_TIME:
+ sink->frame_time = g_value_get_int (value);
+ break;
+ case ARG_HOOK:
+ if (sink->hook)
+ {
+ sink->hook->free_info (sink->hook);
+ }
+ sink->hook = g_value_get_pointer (value);
+ break;
+ case ARG_MUTE:
+ sink->muted = g_value_get_boolean (value);
+ g_object_notify (object, "mute");
+ break;
+ case ARG_REPAINT:
+ if (sink->last_image != NULL) {
+ sink->plugin->put_image (sink->hook, (GstImageData *) GST_BUFFER_POOL_PRIVATE (sink->last_image));
+ }
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_glsink_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
+{
+ GstGLSink *sink;
+
+ /* it's not null if we got it, but it might not be ours */
+ sink = GST_GLSINK(object);
+
+ switch (prop_id) {
+ case ARG_WIDTH:
+ g_value_set_int (value, sink->width);
+ break;
+ case ARG_HEIGHT:
+ g_value_set_int (value, sink->height);
+ break;
+ case ARG_FRAMES_DISPLAYED:
+ g_value_set_int (value, sink->frames_displayed);
+ break;
+ case ARG_FRAME_TIME:
+ g_value_set_int (value, sink->frame_time/1000000);
+ break;
+ case ARG_MUTE:
+ g_value_set_boolean (value, sink->muted);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+
+static GstElementStateReturn
+gst_glsink_change_state (GstElement *element)
+{
+ GstGLSink *sink;
+
+ sink = GST_GLSINK (element);
+
+ switch (GST_STATE_TRANSITION (element)) {
+ case GST_STATE_NULL_TO_READY:
+ break;
+ case GST_STATE_READY_TO_PAUSED:
+ {
+ //g_warning("Going GST_STATE_READY_TO_PAUSED: %p", sink->conn);
+ }
+ break;
+ case GST_STATE_PAUSED_TO_PLAYING:
+ {
+ //g_warning("Going GST_STATE_PAUSED_TO_PLAYING: %p", sink->conn);
+ }
+ break;
+ case GST_STATE_PLAYING_TO_PAUSED:
+ break;
+ case GST_STATE_PAUSED_TO_READY:
+ if (sink->conn)
+ sink->conn->close_conn (sink->conn, sink->hook);
+ if (sink->last_image) {
+ gst_buffer_unref (sink->last_image);
+ sink->last_image = NULL;
+ }
+ break;
+ case GST_STATE_READY_TO_NULL:
+ gst_glsink_release_conn (sink);
+ break;
+ }
+
+ parent_class->change_state (element);
+
+ return GST_STATE_SUCCESS;
+}
+
+static gboolean
+plugin_init (GModule *module, GstPlugin *plugin)
+{
+ GstElementFactory *factory;
+
+ /* create an elementfactory for the xvideosink element */
+ factory = gst_element_factory_new("glsink",GST_TYPE_GLSINK,
+ &gst_glsink_details);
+ g_return_val_if_fail(factory != NULL, FALSE);
+
+ sink_template = gst_pad_template_new (
+ "sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ NULL);
+
+ gst_element_factory_add_pad_template (factory, sink_template);
+
+ gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
+
+ return TRUE;
+}
+
+GstPluginDesc plugin_desc = {
+ GST_VERSION_MAJOR,
+ GST_VERSION_MINOR,
+ "glsink",
+ plugin_init
+};