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Integrating the GstVideoSink parent class

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Original commit message from CVS:
Integrating the GstVideoSink parent class
This commit is contained in:
Julien Moutte 2003-09-14 21:09:41 +00:00
parent 5919f1e35f
commit cc8dee7f9d
2 changed files with 56 additions and 145 deletions
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184
ext/sdl/sdlvideosink.c
View file

@ -41,30 +41,9 @@ static GstElementDetails gst_sdlvideosink_details = {
"(C) 2001",
};
/* sdlvideosink signals and args */
enum {
SIGNAL_FRAME_DISPLAYED,
SIGNAL_HAVE_SIZE,
LAST_SIGNAL
};
enum {
ARG_0,
ARG_WIDTH,
ARG_HEIGHT,
ARG_XID,
ARG_FRAMES_DISPLAYED,
ARG_FRAME_TIME,
};
static void gst_sdlvideosink_class_init (GstSDLVideoSinkClass *klass);
static void gst_sdlvideosink_init (GstSDLVideoSink *sdlvideosink);
static void gst_sdlvideosink_set_clock (GstElement *element, GstClock *clock);
static gboolean gst_sdlvideosink_create (GstSDLVideoSink *sdlvideosink,
gboolean showlogo);
static GstPadLinkReturn gst_sdlvideosink_sinkconnect (GstPad *pad,
@ -87,8 +66,6 @@ static GstCaps *capslist = NULL;
static GstPadTemplate *sink_template;
static GstElementClass *parent_class = NULL;
static guint gst_sdlvideosink_signals[LAST_SIGNAL] = { 0 };
GType
gst_sdlvideosink_get_type (void)
@ -97,17 +74,18 @@ gst_sdlvideosink_get_type (void)
if (!sdlvideosink_type) {
static const GTypeInfo sdlvideosink_info = {
sizeof(GstSDLVideoSinkClass), NULL,
sizeof (GstSDLVideoSinkClass), NULL,
NULL,
(GClassInitFunc)gst_sdlvideosink_class_init,
(GClassInitFunc) gst_sdlvideosink_class_init,
NULL,
NULL,
sizeof(GstSDLVideoSink),
sizeof (GstSDLVideoSink),
0,
(GInstanceInitFunc)gst_sdlvideosink_init,
(GInstanceInitFunc) gst_sdlvideosink_init,
};
sdlvideosink_type = g_type_register_static(GST_TYPE_ELEMENT,
"GstSDLVideoSink", &sdlvideosink_info, 0);
sdlvideosink_type = g_type_register_static(GST_TYPE_VIDEOSINK,
"GstSDLVideoSink",
&sdlvideosink_info, 0);
}
return sdlvideosink_type;
}
@ -118,70 +96,36 @@ gst_sdlvideosink_class_init (GstSDLVideoSinkClass *klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstVideoSinkClass *gstvs_class;
gobject_class = (GObjectClass*)klass;
gstelement_class = (GstElementClass*)klass;
gobject_class = (GObjectClass*) klass;
gstelement_class = (GstElementClass*) klass;
gstvs_class = (GstVideoSinkClass*) klass;
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_WIDTH,
g_param_spec_int("width","Width","Width of the video window",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_HEIGHT,
g_param_spec_int("height","Height","Height of the video window",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_XID,
g_param_spec_int ("xid", "Xid", "The Xid of the window",
G_MININT, G_MAXINT, 0, G_PARAM_WRITABLE));
g_object_class_install_property (G_OBJECT_CLASS (klass), 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_READABLE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FRAME_TIME,
g_param_spec_int ("frame_time", "Frame time", "The interval between frames",
G_MININT, G_MAXINT, 0, G_PARAM_READABLE));
gobject_class->set_property = gst_sdlvideosink_set_property;
gobject_class->get_property = gst_sdlvideosink_get_property;
gst_sdlvideosink_signals[SIGNAL_FRAME_DISPLAYED] =
g_signal_new ("frame_displayed", G_TYPE_FROM_CLASS(klass), G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstSDLVideoSinkClass, frame_displayed), NULL, NULL,
g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
gst_sdlvideosink_signals[SIGNAL_HAVE_SIZE] =
g_signal_new ("have_size", G_TYPE_FROM_CLASS(klass), G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstSDLVideoSinkClass, have_size), NULL, NULL,
gst_marshal_VOID__INT_INT, G_TYPE_NONE, 2,
G_TYPE_UINT, G_TYPE_UINT);
gstelement_class->change_state = gst_sdlvideosink_change_state;
gstelement_class->set_clock = gst_sdlvideosink_set_clock;
}
static void
gst_sdlvideosink_set_clock (GstElement *element, GstClock *clock)
{
GstSDLVideoSink *sdlvideosink;
sdlvideosink = GST_SDLVIDEOSINK (element);
sdlvideosink->clock = clock;
/*gstvs_class->set_video_out = gst_sdlvideosink_set_video_out;
gstvs_class->push_ui_event = gst_sdlvideosink_push_ui_event;
gstvs_class->set_geometry = gst_sdlvideosink_set_geometry;*/
}
static void
gst_sdlvideosink_init (GstSDLVideoSink *sdlvideosink)
{
sdlvideosink->sinkpad = gst_pad_new_from_template (sink_template, "sink");
gst_element_add_pad (GST_ELEMENT (sdlvideosink), sdlvideosink->sinkpad);
GST_VIDEOSINK_PAD (sdlvideosink) = gst_pad_new_from_template (sink_template,
"sink");
gst_element_add_pad (GST_ELEMENT (sdlvideosink),
GST_VIDEOSINK_PAD (sdlvideosink));
gst_pad_set_chain_function (sdlvideosink->sinkpad, gst_sdlvideosink_chain);
gst_pad_set_link_function (sdlvideosink->sinkpad, gst_sdlvideosink_sinkconnect);
sdlvideosink->window_width = -1;
sdlvideosink->window_height = -1;
gst_pad_set_chain_function (GST_VIDEOSINK_PAD (sdlvideosink),
gst_sdlvideosink_chain);
gst_pad_set_link_function (GST_VIDEOSINK_PAD (sdlvideosink),
gst_sdlvideosink_sinkconnect);
sdlvideosink->image_width = -1;
sdlvideosink->image_height = -1;
@ -193,8 +137,6 @@ gst_sdlvideosink_init (GstSDLVideoSink *sdlvideosink)
sdlvideosink->capslist = capslist;
sdlvideosink->clock = NULL;
GST_FLAG_SET(sdlvideosink, GST_ELEMENT_THREAD_SUGGESTED);
GST_FLAG_SET(sdlvideosink, GST_ELEMENT_EVENT_AWARE);
}
@ -266,42 +208,42 @@ gst_sdlvideosink_create (GstSDLVideoSink *sdlvideosink, gboolean showlogo)
guint8 *sbuffer;
gint i;
if (sdlvideosink->window_height <= 0)
sdlvideosink->window_height = sdlvideosink->image_height;
if (sdlvideosink->window_width <= 0)
sdlvideosink->window_width = sdlvideosink->image_width;
if (GST_VIDEOSINK_HEIGHT (sdlvideosink) <= 0)
GST_VIDEOSINK_HEIGHT (sdlvideosink) = sdlvideosink->image_height;
if (GST_VIDEOSINK_WIDTH (sdlvideosink) <= 0)
GST_VIDEOSINK_WIDTH (sdlvideosink) = sdlvideosink->image_width;
/* create a SDL window of the size requested by the user */
sdlvideosink->screen = SDL_SetVideoMode(sdlvideosink->window_width,
sdlvideosink->window_height, 0, SDL_SWSURFACE | SDL_RESIZABLE);
sdlvideosink->screen = SDL_SetVideoMode(GST_VIDEOSINK_WIDTH (sdlvideosink),
GST_VIDEOSINK_HEIGHT (sdlvideosink), 0, SDL_SWSURFACE | SDL_RESIZABLE);
if (showlogo) /* workaround for SDL bug - do it twice */
sdlvideosink->screen = SDL_SetVideoMode(sdlvideosink->window_width,
sdlvideosink->window_height, 0, SDL_SWSURFACE | SDL_RESIZABLE);
sdlvideosink->screen = SDL_SetVideoMode(GST_VIDEOSINK_WIDTH (sdlvideosink),
GST_VIDEOSINK_HEIGHT (sdlvideosink), 0, SDL_SWSURFACE | SDL_RESIZABLE);
if ( sdlvideosink->screen == NULL)
{
gst_element_error(GST_ELEMENT(sdlvideosink),
"SDL: Couldn't set %dx%d: %s", sdlvideosink->window_width,
sdlvideosink->window_height, SDL_GetError());
"SDL: Couldn't set %dx%d: %s", GST_VIDEOSINK_WIDTH (sdlvideosink),
GST_VIDEOSINK_HEIGHT (sdlvideosink), SDL_GetError());
return FALSE;
}
/* clean possible old YUV overlays (...) and create a new one */
if (sdlvideosink->yuv_overlay)
SDL_FreeYUVOverlay(sdlvideosink->yuv_overlay);
sdlvideosink->yuv_overlay = SDL_CreateYUVOverlay(sdlvideosink->image_width,
sdlvideosink->image_height, sdlvideosink->format, sdlvideosink->screen);
sdlvideosink->yuv_overlay = SDL_CreateYUVOverlay(GST_VIDEOSINK_WIDTH (sdlvideosink),
GST_VIDEOSINK_WIDTH (sdlvideosink), sdlvideosink->format, sdlvideosink->screen);
if ( sdlvideosink->yuv_overlay == NULL )
{
gst_element_error(GST_ELEMENT(sdlvideosink),
"SDL: Couldn't create SDL_yuv_overlay (%dx%d \'" GST_FOURCC_FORMAT "\'): %s",
sdlvideosink->image_width, sdlvideosink->image_height,
GST_VIDEOSINK_WIDTH (sdlvideosink), GST_VIDEOSINK_HEIGHT (sdlvideosink),
GST_FOURCC_ARGS(sdlvideosink->format), SDL_GetError());
return FALSE;
}
else
{
g_message("Using a %dx%d %dbpp SDL screen with a %dx%d \'" GST_FOURCC_FORMAT "\' YUV overlay\n",
sdlvideosink->window_width, sdlvideosink->window_height,
GST_VIDEOSINK_WIDTH (sdlvideosink), GST_VIDEOSINK_HEIGHT (sdlvideosink),
sdlvideosink->screen->format->BitsPerPixel,
sdlvideosink->image_width, sdlvideosink->image_height,
GST_FOURCC_ARGS(sdlvideosink->format));
@ -309,8 +251,8 @@ gst_sdlvideosink_create (GstSDLVideoSink *sdlvideosink, gboolean showlogo)
sdlvideosink->rect.x = 0;
sdlvideosink->rect.y = 0;
sdlvideosink->rect.w = sdlvideosink->window_width;
sdlvideosink->rect.h = sdlvideosink->window_height;
sdlvideosink->rect.w = GST_VIDEOSINK_WIDTH (sdlvideosink);
sdlvideosink->rect.h = GST_VIDEOSINK_HEIGHT (sdlvideosink);
/* make stupid SDL *not* react on SIGINT */
signal(SIGINT, SIG_DFL);
@ -345,11 +287,10 @@ gst_sdlvideosink_create (GstSDLVideoSink *sdlvideosink, gboolean showlogo)
SDL_DisplayYUVOverlay(sdlvideosink->yuv_overlay, &(sdlvideosink->rect));
GST_DEBUG ("sdlvideosink: setting %08lx (" GST_FOURCC_FORMAT ")", sdlvideosink->format, GST_FOURCC_ARGS(sdlvideosink->format));
/* TODO: is this the width of the input image stream or of the widget? */
g_signal_emit (G_OBJECT (sdlvideosink), gst_sdlvideosink_signals[SIGNAL_HAVE_SIZE], 0,
sdlvideosink->window_width, sdlvideosink->window_height);
gst_video_sink_got_video_size (GST_VIDEOSINK (sdlvideosink),
GST_VIDEOSINK_WIDTH (sdlvideosink),
GST_VIDEOSINK_HEIGHT (sdlvideosink));
return TRUE;
}
@ -416,8 +357,8 @@ gst_sdlvideosink_chain (GstPad *pad, GstBuffer *buf)
{
case SDL_VIDEORESIZE:
/* create a SDL window of the size requested by the user */
sdlvideosink->window_width = sdl_event.resize.w;
sdlvideosink->window_height = sdl_event.resize.h;
GST_VIDEOSINK_WIDTH (sdlvideosink) = sdl_event.resize.w;
GST_VIDEOSINK_HEIGHT (sdlvideosink) = sdl_event.resize.h;
gst_sdlvideosink_create(sdlvideosink, FALSE);
break;
}
@ -442,8 +383,10 @@ gst_sdlvideosink_chain (GstPad *pad, GstBuffer *buf)
}
GST_DEBUG ("videosink: clock wait: %" G_GUINT64_FORMAT, GST_BUFFER_TIMESTAMP(buf));
if (sdlvideosink->clock) {
GstClockID id = gst_clock_new_single_shot_id (sdlvideosink->clock, GST_BUFFER_TIMESTAMP (buf));
if (GST_VIDEOSINK_CLOCK (sdlvideosink)) {
GstClockID id = gst_clock_new_single_shot_id (
GST_VIDEOSINK_CLOCK (sdlvideosink),
GST_BUFFER_TIMESTAMP (buf));
gst_element_clock_wait (GST_ELEMENT (sdlvideosink), id, NULL);
gst_clock_id_free (id);
@ -478,7 +421,7 @@ gst_sdlvideosink_chain (GstPad *pad, GstBuffer *buf)
sdlvideosink->rect.x, sdlvideosink->rect.y,
sdlvideosink->rect.w, sdlvideosink->rect.h);
g_signal_emit(G_OBJECT(sdlvideosink),gst_sdlvideosink_signals[SIGNAL_FRAME_DISPLAYED],0);
gst_video_sink_frame_displayed (GST_VIDEOSINK (sdlvideosink));
gst_buffer_unref(buf);
}
@ -495,19 +438,6 @@ gst_sdlvideosink_set_property (GObject *object, guint prop_id, const GValue *val
switch (prop_id)
{
case ARG_WIDTH:
sdlvideosink->window_width = g_value_get_int(value);
if (sdlvideosink->yuv_overlay)
gst_sdlvideosink_create(sdlvideosink, FALSE);
break;
case ARG_HEIGHT:
sdlvideosink->window_height = g_value_get_int(value);
if (sdlvideosink->yuv_overlay)
gst_sdlvideosink_create(sdlvideosink, FALSE);
break;
case ARG_XID:
sdlvideosink->window_id = g_value_get_int(value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -525,18 +455,6 @@ gst_sdlvideosink_get_property (GObject *object, guint prop_id, GValue *value, GP
sdlvideosink = GST_SDLVIDEOSINK(object);
switch (prop_id) {
case ARG_WIDTH:
g_value_set_int(value, sdlvideosink->window_width);
break;
case ARG_HEIGHT:
g_value_set_int(value, sdlvideosink->window_height);
break;
case ARG_FRAMES_DISPLAYED:
g_value_set_int (value, sdlvideosink->frames_displayed);
break;
case ARG_FRAME_TIME:
g_value_set_int (value, sdlvideosink->frame_time/1000000);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -601,6 +519,10 @@ plugin_init (GModule *module, GstPlugin *plugin)
GST_MAKE_FOURCC('U','Y','V','Y')
};
/* Loading the library containing GstVideoSink, our parent object */
if (!gst_library_load ("gstvideo"))
return FALSE;
/* create an elementfactory for the sdlvideosink element */
factory = gst_element_factory_new("sdlvideosink",GST_TYPE_SDLVIDEOSINK,
&gst_sdlvideosink_details);

17
ext/sdl/sdlvideosink.h
View file

@ -21,7 +21,7 @@
#ifndef __GST_SDLVIDEOSINK_H__
#define __GST_SDLVIDEOSINK_H__
#include <gst/gst.h>
#include <gst/video/gstvideosink.h>
#include <SDL.h>
@ -51,20 +51,12 @@ typedef struct _GstSDLVideoSink GstSDLVideoSink;
typedef struct _GstSDLVideoSinkClass GstSDLVideoSinkClass;
struct _GstSDLVideoSink {
GstElement element;
GstPad *sinkpad;
GstVideoSink videosink;
gulong format;
gint window_width, window_height; /* the size of the SDL window */
gint image_width, image_height; /* the size of the incoming YUV stream */
gint window_id;
gint frames_displayed;
guint64 frame_time;
GstClock *clock;
GstCaps *capslist;
unsigned char *yuv[3];
@ -74,11 +66,8 @@ struct _GstSDLVideoSink {
};
struct _GstSDLVideoSinkClass {
GstElementClass parent_class;
GstVideoSinkClass parent_class;
/* signals */
void (*frame_displayed) (GstElement *element);
void (*have_size) (GstElement *element, guint width, guint height);
};
GType gst_sdlsink_get_type(void);