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-rw-r--r--ext/sdl/sdlvideosink.c431
-rw-r--r--ext/sdl/sdlvideosink.h6
2 files changed, 299 insertions, 138 deletions
diff --git a/ext/sdl/sdlvideosink.c b/ext/sdl/sdlvideosink.c
index bbc2f322..36a15ea5 100644
--- a/ext/sdl/sdlvideosink.c
+++ b/ext/sdl/sdlvideosink.c
@@ -26,6 +26,7 @@
#include "sdlvideosink.h"
+
static GstElementDetails gst_sdlvideosink_details = {
"Video sink",
"Sink/Video",
@@ -35,6 +36,7 @@ static GstElementDetails gst_sdlvideosink_details = {
"(C) 2001",
};
+
/* sdlvideosink signals and args */
enum {
SIGNAL_FRAME_DISPLAYED,
@@ -47,43 +49,40 @@ enum {
ARG_0,
ARG_WIDTH,
ARG_HEIGHT,
- ARG_DRIVER,
- ARG_DITHER,
- ARG_BRIGHTNESS,
- ARG_CONTRAST,
- ARG_GAMMA,
- ARG_INVERSION,
- ARG_RANDOMVAL,
+ ARG_XID,
ARG_FRAMES_DISPLAYED,
ARG_FRAME_TIME,
};
-GST_PADTEMPLATE_FACTORY (sink_template,
- "sink",
- GST_PAD_SINK,
- GST_PAD_ALWAYS,
- GST_CAPS_NEW (
- "sdlvideosink_caps",
- "video/raw",
- "format", GST_PROPS_FOURCC (GST_STR_FOURCC ("I420")),
- "width", GST_PROPS_INT_RANGE (0, G_MAXINT),
- "height", GST_PROPS_INT_RANGE (0, G_MAXINT)
- )
-)
-
-static void gst_sdlvideosink_class_init (GstSDLVideoSinkClass *klass);
-static void gst_sdlvideosink_init (GstSDLVideoSink *sdlvideosink);
-
-static void gst_sdlvideosink_chain (GstPad *pad, GstBuffer *buf);
-
-static void gst_sdlvideosink_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
-static void gst_sdlvideosink_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
-static void gst_sdlvideosink_close (GstSDLVideoSink *sdlvideosink);
-static GstElementStateReturn gst_sdlvideosink_change_state (GstElement *element);
+static void gst_sdlvideosink_class_init (GstSDLVideoSinkClass *klass);
+static void gst_sdlvideosink_init (GstSDLVideoSink *sdlvideosink);
+
+static void gst_sdlvideosink_newcaps (GstPad *pad,
+ GstCaps *caps);
+static GstPadNegotiateReturn gst_sdlvideosink_negotiate (GstPad *pad,
+ GstCaps **caps,
+ gpointer *data);
+static void gst_sdlvideosink_chain (GstPad *pad,
+ GstBuffer *buf);
+
+static void gst_sdlvideosink_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gst_sdlvideosink_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec);
+static GstElementStateReturn gst_sdlvideosink_change_state (GstElement *element);
+
+
+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)
{
@@ -100,11 +99,13 @@ gst_sdlvideosink_get_type (void)
0,
(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_ELEMENT,
+ "GstSDLVideoSink", &sdlvideosink_info, 0);
}
return sdlvideosink_type;
}
+
static void
gst_sdlvideosink_class_init (GstSDLVideoSinkClass *klass)
{
@@ -117,32 +118,22 @@ gst_sdlvideosink_class_init (GstSDLVideoSinkClass *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",
- G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); // CHECKME
+ 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",
- G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); // CHECKME
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_BRIGHTNESS,
- g_param_spec_int("brightness","brightness","brightness",
- G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); // CHECKME
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_CONTRAST,
- g_param_spec_int("contrast","contrast","contrast",
- G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); // CHECKME
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_GAMMA,
- g_param_spec_float("gamma","gamma","gamma",
- 0.0,5.0,1.0,G_PARAM_READWRITE)); // CHECKME
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_INVERSION,
- g_param_spec_boolean("inversion","inversion","inversion",
- TRUE,G_PARAM_READWRITE)); // CHECKME
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_RANDOMVAL,
- g_param_spec_int("randomval","randomval","randomval",
- G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); // CHECKME
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FRAMES_DISPLAYED,
- g_param_spec_int("frames_displayed","frames_displayed","frames_displayed",
- G_MININT,G_MAXINT,0,G_PARAM_READABLE)); // CHECKME
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FRAME_TIME,
- g_param_spec_int("frame_time","frame_time","frame_time",
- G_MININT,G_MAXINT,0,G_PARAM_READABLE)); // CHECKME
+ 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;
@@ -161,43 +152,119 @@ gst_sdlvideosink_class_init (GstSDLVideoSinkClass *klass)
gstelement_class->change_state = gst_sdlvideosink_change_state;
}
+
+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_pad_set_chain_function (sdlvideosink->sinkpad, gst_sdlvideosink_chain);
+ gst_pad_set_negotiate_function (sdlvideosink->sinkpad, gst_sdlvideosink_negotiate);
+ gst_pad_set_newcaps_function (sdlvideosink->sinkpad, gst_sdlvideosink_newcaps);
+
+ sdlvideosink->clock = gst_clock_get_system();
+ gst_clock_register(sdlvideosink->clock, GST_OBJECT(sdlvideosink));
+
+ sdlvideosink->window_width = -1;
+ sdlvideosink->window_height = -1;
+
+ sdlvideosink->image_width = -1;
+ sdlvideosink->image_height = -1;
+
+ sdlvideosink->yuv_overlay = NULL;
+ sdlvideosink->screen = NULL;
+
+ sdlvideosink->window_id = -1; /* means "don't use" */
+
+ sdlvideosink->capslist = capslist;
+
+ GST_FLAG_SET(sdlvideosink, GST_ELEMENT_THREAD_SUGGESTED);
+}
+
+
+static gulong
+gst_sdlvideosink_get_sdl_from_fourcc (GstSDLVideoSink *sdlvideosink,
+ gulong code)
+{
+ switch (code)
+ {
+ case GST_MAKE_FOURCC('I','4','2','0'):
+ case GST_MAKE_FOURCC('I','Y','U','V'):
+ return SDL_IYUV_OVERLAY;
+ case GST_MAKE_FOURCC('Y','V','1','2'):
+ return SDL_YV12_OVERLAY;
+ case GST_MAKE_FOURCC('Y','U','Y','2'):
+ return SDL_YUY2_OVERLAY;
+ case GST_MAKE_FOURCC('U','Y','V','Y'):
+ return SDL_UYVY_OVERLAY;
+ case GST_MAKE_FOURCC('Y','V','Y','U'):
+ return SDL_YVYU_OVERLAY;
+ default:
+ gst_element_error(GST_ELEMENT(sdlvideosink),
+ "Unsupported format %08lx (%4.4s)",
+ GULONG_FROM_LE(code), (char*)(&(GULONG_FROM_LE(code))));
+ return 0;
+ }
+}
+
+
static void
-gst_sdlvideosink_newcaps (GstPad *pad, GstCaps *caps)
+gst_sdlvideosink_newcaps (GstPad *pad,
+ GstCaps *caps)
{
GstSDLVideoSink *sdlvideosink;
gulong print_format;
+ gulong format;
sdlvideosink = GST_SDLVIDEOSINK (gst_pad_get_parent (pad));
- sdlvideosink->width = gst_caps_get_int (caps, "width");
- sdlvideosink->height = gst_caps_get_int (caps, "height");
+ sdlvideosink->format = gst_caps_get_fourcc_int (caps, "format");
+ sdlvideosink->image_width = gst_caps_get_int (caps, "width");
+ sdlvideosink->image_height = gst_caps_get_int (caps, "height");
+
+ if (sdlvideosink->window_height <= 0)
+ sdlvideosink->window_height = sdlvideosink->image_height;
+ if (sdlvideosink->window_width <= 0)
+ sdlvideosink->window_width = sdlvideosink->image_width;
print_format = GULONG_FROM_LE (sdlvideosink->format);
- sdlvideosink->screen = SDL_SetVideoMode(sdlvideosink->width, sdlvideosink->height,
- 0, SDL_SWSURFACE);
- if ( sdlvideosink->screen == NULL /* || sdlvideosink->buffer == NULL */) {
- GST_ERROR(0, "SDL: Couldn't set %dx%d: %s", sdlvideosink->width,
- sdlvideosink->height, SDL_GetError());
- printf("error\n");
+ /* create a SDL window of the size requested by the user */
+ sdlvideosink->screen = SDL_SetVideoMode(sdlvideosink->window_width,
+ sdlvideosink->window_height, 0, SDL_SWSURFACE);
+ 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());
return;
}
- else {
- GST_DEBUG(0, "SDL: Set %dx%d @ %d bpp\n", sdlvideosink->width,
- sdlvideosink->height, sdlvideosink->screen->format->BitsPerPixel);
+ else
+ {
+ gst_element_info(GST_ELEMENT(sdlvideosink),
+ "SDL: Set %dx%d @ %d bpp",
+ sdlvideosink->window_width, sdlvideosink->window_height,
+ sdlvideosink->screen->format->BitsPerPixel);
}
- sdlvideosink->yuv_overlay = SDL_CreateYUVOverlay(sdlvideosink->width, sdlvideosink->height,
- SDL_IYUV_OVERLAY, sdlvideosink->screen);
- if ( sdlvideosink->yuv_overlay == NULL ) {
- GST_ERROR(0, "SDL: Couldn't create SDL_yuv_overlay: %s\n", SDL_GetError());
+ /* get SDL code */
+ format = gst_sdlvideosink_get_sdl_from_fourcc(sdlvideosink, sdlvideosink->format);
+
+ /* 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, format, sdlvideosink->screen);
+ if ( sdlvideosink->yuv_overlay == NULL )
+ {
+ gst_element_error(GST_ELEMENT(sdlvideosink),
+ "SDL: Couldn't create SDL_yuv_overlay: %s", SDL_GetError());
return;
}
sdlvideosink->rect.x = 0;
sdlvideosink->rect.y = 0;
- sdlvideosink->rect.w = sdlvideosink->width;
- sdlvideosink->rect.h = sdlvideosink->height;
+ sdlvideosink->rect.w = sdlvideosink->window_width;
+ sdlvideosink->rect.h = sdlvideosink->window_height;
SDL_DisplayYUVOverlay(sdlvideosink->yuv_overlay, &(sdlvideosink->rect));
/* make stupid SDL *not* react on SIGINT */
@@ -205,28 +272,56 @@ gst_sdlvideosink_newcaps (GstPad *pad, GstCaps *caps)
GST_DEBUG (0, "sdlvideosink: setting %08lx (%4.4s)\n", sdlvideosink->format, (gchar*)&print_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->width, sdlvideosink->height);
+ sdlvideosink->window_width, sdlvideosink->window_height);
}
-static void
-gst_sdlvideosink_init (GstSDLVideoSink *sdlvideosink)
+
+static GstPadNegotiateReturn
+gst_sdlvideosink_negotiate (GstPad *pad, GstCaps **caps, gpointer *data)
{
- sdlvideosink->sinkpad = gst_pad_new_from_template (
- GST_PADTEMPLATE_GET (sink_template), "sink");
- gst_element_add_pad (GST_ELEMENT (sdlvideosink), sdlvideosink->sinkpad);
- gst_pad_set_chain_function (sdlvideosink->sinkpad, gst_sdlvideosink_chain);
- gst_pad_set_newcaps_function (sdlvideosink->sinkpad, gst_sdlvideosink_newcaps);
+ GstSDLVideoSink *sdlvideosink;
- sdlvideosink->clock = gst_clock_get_system();
- gst_clock_register(sdlvideosink->clock, GST_OBJECT(sdlvideosink));
+ GST_DEBUG (0, "sdlvideosink: negotiate %p %p\n", data, *data);
- sdlvideosink->width = -1;
- sdlvideosink->height = -1;
+ sdlvideosink = GST_SDLVIDEOSINK (gst_pad_get_parent (pad));
- GST_FLAG_SET(sdlvideosink, GST_ELEMENT_THREAD_SUGGESTED);
+ if (*caps == NULL)
+ {
+ /* provide our own */
+ *caps = sdlvideosink->capslist;
+
+ if (*caps != NULL)
+ {
+ sdlvideosink->capslist = sdlvideosink->capslist->next;
+ return GST_PAD_NEGOTIATE_TRY;
+ }
+ else
+ {
+ GST_DEBUG(0, "Out of caps\n");
+ }
+ }
+ else
+ {
+ /* check whether it's in any way compatible */
+ switch (gst_caps_get_fourcc_int(*caps, "format"))
+ {
+ case GST_MAKE_FOURCC('I','4','2','0'):
+ case GST_MAKE_FOURCC('I','Y','U','V'):
+ case GST_MAKE_FOURCC('Y','V','1','2'):
+ case GST_MAKE_FOURCC('Y','U','Y','2'):
+ case GST_MAKE_FOURCC('Y','V','Y','U'):
+ case GST_MAKE_FOURCC('U','Y','V','Y'):
+ return GST_PAD_NEGOTIATE_AGREE;
+ }
+ }
+
+ /* if we got here - it's not good */
+ return GST_PAD_NEGOTIATE_FAIL;
}
+
static void
gst_sdlvideosink_chain (GstPad *pad, GstBuffer *buf)
{
@@ -253,30 +348,49 @@ gst_sdlvideosink_chain (GstPad *pad, GstBuffer *buf)
}
/* Lock SDL/yuv-overlay */
- if ( SDL_LockSurface(sdlvideosink->screen) < 0 ) {
- GST_ERROR(0, "SDL_LockSurface(sdlvideosink->screen) < 0");
- return;
+ if (SDL_MUSTLOCK(sdlvideosink->screen))
+ {
+ if (SDL_LockSurface(sdlvideosink->screen) < 0)
+ {
+ gst_element_error(GST_ELEMENT(sdlvideosink),
+ "SDL: couldn\'t lock the SDL video window: %s", SDL_GetError());
+ return;
+ }
}
- if (SDL_LockYUVOverlay(sdlvideosink->yuv_overlay) < 0) {
- GST_ERROR(0, "SDL_LockYUVOverlay(sdlvideosink->yuv_overlay) < 0");
+ if (SDL_LockYUVOverlay(sdlvideosink->yuv_overlay) < 0)
+ {
+ gst_element_error(GST_ELEMENT(sdlvideosink),
+ "SDL: couldn\'t lock the SDL YUV overlat: %s", SDL_GetError());
return;
}
/* buf->yuv */
- sdlvideosink->yuv[0] = GST_BUFFER_DATA(buf);
- sdlvideosink->yuv[1] = sdlvideosink->yuv[0] + sdlvideosink->width*sdlvideosink->height;
- sdlvideosink->yuv[2] = sdlvideosink->yuv[1] + sdlvideosink->width*sdlvideosink->height/4;
+ if (sdlvideosink->format == GST_MAKE_FOURCC('I','4','2','0') ||
+ sdlvideosink->format == GST_MAKE_FOURCC('Y','V','1','2') ||
+ sdlvideosink->format == GST_MAKE_FOURCC('I','Y','U','V'))
+ {
+ sdlvideosink->yuv[0] = GST_BUFFER_DATA(buf);
+ sdlvideosink->yuv[1] = sdlvideosink->yuv[0] + sdlvideosink->image_width*sdlvideosink->image_height;
+ sdlvideosink->yuv[2] = sdlvideosink->yuv[1] + sdlvideosink->image_width*sdlvideosink->image_height/4;
+ }
+ else
+ {
+ sdlvideosink->yuv[0] = GST_BUFFER_DATA(buf);
+ }
/* let's draw the data (*yuv[3]) on a SDL screen (*buffer) */
sdlvideosink->yuv_overlay->pixels = sdlvideosink->yuv;
/* Unlock SDL_yuv_overlay */
SDL_UnlockYUVOverlay(sdlvideosink->yuv_overlay);
- SDL_UnlockSurface(sdlvideosink->screen);
+ if (SDL_MUSTLOCK(sdlvideosink->screen))
+ SDL_UnlockSurface(sdlvideosink->screen);
/* Show, baby, show! */
SDL_DisplayYUVOverlay(sdlvideosink->yuv_overlay, &(sdlvideosink->rect));
- SDL_UpdateRect(sdlvideosink->screen, 0, 0, sdlvideosink->width, sdlvideosink->height);
+ SDL_UpdateRect(sdlvideosink->screen,
+ 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);
@@ -292,9 +406,23 @@ gst_sdlvideosink_set_property (GObject *object, guint prop_id, const GValue *val
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_SDLVIDEOSINK (object));
+ switch (prop_id)
+ {
+ case ARG_WIDTH:
+ sdlvideosink->window_width = g_value_get_int(value);
+ break;
+ case ARG_HEIGHT:
+ sdlvideosink->window_height = g_value_get_int(value);
+ break;
+ case ARG_XID:
+ sdlvideosink->window_id = g_value_get_int(value);
+ break;
+ }
+
sdlvideosink = GST_SDLVIDEOSINK (object);
}
+
static void
gst_sdlvideosink_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
@@ -304,60 +432,59 @@ gst_sdlvideosink_get_property (GObject *object, guint prop_id, GValue *value, GP
sdlvideosink = GST_SDLVIDEOSINK(object);
switch (prop_id) {
- case ARG_FRAMES_DISPLAYED: {
+ 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: {
+ 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);
+ default:
+ /*G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);*/
break;
- }
- }
-}
-
-static gboolean
-gst_sdlvideosink_open (GstSDLVideoSink *sdlvideosink)
-{
- g_return_val_if_fail (!GST_FLAG_IS_SET (sdlvideosink ,GST_SDLVIDEOSINK_OPEN), FALSE);
-
- /* Initialize the SDL library */
- if( SDL_Init(SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE) < 0 ) {
- GST_ERROR(0, "Couldn't initialize SDL: %s\n", SDL_GetError());
- return FALSE;
}
- GST_FLAG_SET (sdlvideosink, GST_SDLVIDEOSINK_OPEN);
-
- return TRUE;
}
-static void
-gst_sdlvideosink_close (GstSDLVideoSink *sdlvideosink)
-{
- g_return_if_fail (GST_FLAG_IS_SET (sdlvideosink ,GST_SDLVIDEOSINK_OPEN));
-
- SDL_FreeYUVOverlay(sdlvideosink->yuv_overlay);
- SDL_Quit();
-
- GST_FLAG_UNSET (sdlvideosink, GST_SDLVIDEOSINK_OPEN);
-}
static GstElementStateReturn
gst_sdlvideosink_change_state (GstElement *element)
{
+ GstSDLVideoSink *sdlvideosink;
g_return_val_if_fail (GST_IS_SDLVIDEOSINK (element), GST_STATE_FAILURE);
+ sdlvideosink = GST_SDLVIDEOSINK(element);
- if (GST_STATE_PENDING (element) == GST_STATE_NULL) {
- if (GST_FLAG_IS_SET (element, GST_SDLVIDEOSINK_OPEN))
- gst_sdlvideosink_close (GST_SDLVIDEOSINK (element));
- } else {
- if (!GST_FLAG_IS_SET (element, GST_SDLVIDEOSINK_OPEN)) {
- if (!gst_sdlvideosink_open (GST_SDLVIDEOSINK (element)))
+ switch (GST_STATE_TRANSITION (element))
+ {
+ case GST_STATE_NULL_TO_READY:
+ /* Initialize the SDL library */
+ if (sdlvideosink->window_id < 0)
+ unsetenv("SDL_WINDOWID");
+ else
+ {
+ char SDL_hack[32];
+ sprintf(SDL_hack, "%ld", sdlvideosink->window_id);
+ setenv("SDL_WINDOWID", SDL_hack, 1);
+ }
+ if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE) < 0 )
+ {
+ gst_element_error(element, "Couldn't initialize SDL: %s", SDL_GetError());
return GST_STATE_FAILURE;
- }
+ }
+ GST_FLAG_SET (sdlvideosink, GST_SDLVIDEOSINK_OPEN);
+ break;
+ case GST_STATE_READY_TO_NULL:
+ if (sdlvideosink->yuv_overlay) SDL_FreeYUVOverlay(sdlvideosink->yuv_overlay);
+ sdlvideosink->yuv_overlay = NULL;
+ SDL_Quit();
+ GST_FLAG_UNSET (sdlvideosink, GST_SDLVIDEOSINK_OPEN);
+ break;
+ default: /* do nothing */
+ break;
}
if (GST_ELEMENT_CLASS (parent_class)->change_state)
@@ -366,24 +493,54 @@ gst_sdlvideosink_change_state (GstElement *element)
return GST_STATE_SUCCESS;
}
+
static gboolean
plugin_init (GModule *module, GstPlugin *plugin)
{
GstElementFactory *factory;
+ GstCaps *caps;
+ gint i;
+ gulong format[6] = { GST_MAKE_FOURCC('I','4','2','0'),
+ GST_MAKE_FOURCC('I','Y','U','V'),
+ GST_MAKE_FOURCC('Y','V','1','2'),
+ GST_MAKE_FOURCC('Y','U','Y','2'),
+ GST_MAKE_FOURCC('Y','V','Y','U'),
+ GST_MAKE_FOURCC('U','Y','V','Y')
+ };
/* create an elementfactory for the sdlvideosink element */
factory = gst_elementfactory_new("sdlvideosink",GST_TYPE_SDLVIDEOSINK,
&gst_sdlvideosink_details);
g_return_val_if_fail(factory != NULL, FALSE);
- gst_elementfactory_add_padtemplate (factory,
- GST_PADTEMPLATE_GET (sink_template));
+ /* make a list of all available caps */
+ for (i=0;i<6;i++)
+ {
+ caps = gst_caps_new ("sdlvideosink_caps",
+ "video/raw",
+ gst_props_new (
+ "format", GST_PROPS_FOURCC(format[i]),
+ "width", GST_PROPS_INT_RANGE (0, G_MAXINT),
+ "height", GST_PROPS_INT_RANGE (0, G_MAXINT),
+ NULL )
+ );
+ capslist = gst_caps_append(capslist, caps);
+ }
+
+ sink_template = gst_padtemplate_new (
+ "sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ capslist, NULL);
+
+ gst_elementfactory_add_padtemplate (factory, sink_template);
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
return TRUE;
}
+
GstPluginDesc plugin_desc = {
GST_VERSION_MAJOR,
GST_VERSION_MINOR,
diff --git a/ext/sdl/sdlvideosink.h b/ext/sdl/sdlvideosink.h
index 2fe00344..15d63544 100644
--- a/ext/sdl/sdlvideosink.h
+++ b/ext/sdl/sdlvideosink.h
@@ -56,13 +56,17 @@ struct _GstSDLVideoSink {
GstPad *sinkpad;
gulong format;
- gint width, height;
+ 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];
SDL_Surface *screen;
SDL_Overlay *yuv_overlay;