diff options
Diffstat (limited to 'sys/glsink/gstglsink.c')
| -rw-r--r-- | sys/glsink/gstglsink.c | 678 |
1 files changed, 0 insertions, 678 deletions
diff --git a/sys/glsink/gstglsink.c b/sys/glsink/gstglsink.c deleted file mode 100644 index 6a11fe5e..00000000 --- a/sys/glsink/gstglsink.c +++ /dev/null @@ -1,678 +0,0 @@ -/* 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, - ARG_DEMO, - ARG_DUMP -}; - -/* 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; - gint demo; // some kind of fun demo mode to let GL show its 3D capabilities - gboolean dumpvideo; // dump the video down to .ppm:s - 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)); - g_object_class_install_property (gobject_class, ARG_DEMO, - g_param_spec_int ("demo", "Demo", "demo mode (shows 3D capabilities)",0, 1, 0, G_PARAM_READWRITE)); - g_object_class_install_property (gobject_class, ARG_DUMP, - g_param_spec_boolean ("dump", "Dump", "stores sequence of frames in .ppm files", FALSE, G_PARAM_READWRITE)); - - /* 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_gl_rgbimage_plugin ()); - klass->plugins = g_list_append (klass->plugins, get_gl_nvimage_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 cache is non-empty, get buffer from there */ - 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 { - /* otherwise, get one from the plugin */ - 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) { - // awful hack ! But I currently have no other solution without changing the API - sink->hook->demo = sink->demo; - sink->hook->dumpvideo = sink->dumpvideo; - - 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_DEMO: - sink->demo = g_value_get_int (value); - g_object_notify (object, "demo"); - break; - case ARG_DUMP: - sink->dumpvideo = g_value_get_boolean (value); - g_object_notify (object, "dump"); - 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; - case ARG_DEMO: - g_value_set_int (value, sink->demo); - break; - case ARG_DUMP: - g_value_set_boolean (value, sink->dumpvideo); - 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 -}; |