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Add XOverlay interface support to both sdlvideosink and xvideosink. They're fully interchangeable now.

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Original commit message from CVS:
Add XOverlay interface support to both sdlvideosink and xvideosink. They're fully interchangeable now.
This commit is contained in:
Ronald S. Bultje 2003-10-28 09:08:32 +00:00
parent 1c0674323a
commit 2b0095e84f
3 changed files with 327 additions and 174 deletions

3
ext/sdl/Makefile.am
View file

@ -4,7 +4,8 @@ plugin_LTLIBRARIES = libgstsdlvideosink.la
libgstsdlvideosink_la_SOURCES = sdlvideosink.c
## FIXME I have my doubts about these opti flags
libgstsdlvideosink_la_CFLAGS = $(GST_CFLAGS) $(SDL_CFLAGS)
libgstsdlvideosink_la_LIBADD = $(SDL_LIBS)
libgstsdlvideosink_la_LIBADD = $(SDL_LIBS) \
$(top_builddir)/gst-libs/gst/xoverlay/libgstxoverlay.la
libgstsdlvideosink_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
noinst_HEADERS = sdlvideosink.h

473
ext/sdl/sdlvideosink.c
View file

@ -28,6 +28,8 @@
#include <sys/time.h>
#include <stdlib.h>
#include <gst/xoverlay/xoverlay.h>
#include "sdlvideosink.h"
/* elementfactory information */
@ -41,25 +43,43 @@ static GstElementDetails gst_sdlvideosink_details = {
"(C) 2001",
};
static void gst_sdlvideosink_class_init (GstSDLVideoSinkClass *klass);
static void gst_sdlvideosink_init (GstSDLVideoSink *sdlvideosink);
static void gst_sdlvideosink_class_init (GstSDLVideoSinkClass *klass);
static void gst_sdlvideosink_init (GstSDLVideoSink *sdl);
static gboolean gst_sdlvideosink_create (GstSDLVideoSink *sdlvideosink,
gboolean showlogo);
static GstPadLinkReturn gst_sdlvideosink_sinkconnect (GstPad *pad,
GstCaps *caps);
static void gst_sdlvideosink_chain (GstPad *pad,
GstData *data);
static void gst_sdlvideosink_interface_init (GstInterfaceClass *klass);
static gboolean gst_sdlvideosink_interface_supported (GstInterface *iface,
GType type);
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 void gst_sdlvideosink_xoverlay_init (GstXOverlayClass *klass);
static void gst_sdlvideosink_xoverlay_set_xwindow_id
(GstXOverlay *overlay,
XID parent);
static gboolean gst_sdlvideosink_lock (GstSDLVideoSink *sdl);
static void gst_sdlvideosink_unlock (GstSDLVideoSink *sdl);
static gboolean gst_sdlvideosink_initsdl (GstSDLVideoSink *sdl);
static void gst_sdlvideosink_deinitsdl (GstSDLVideoSink *sdl);
static gboolean gst_sdlvideosink_create (GstSDLVideoSink *sdl);
static void gst_sdlvideosink_destroy (GstSDLVideoSink *sdl);
static GstPadLinkReturn
gst_sdlvideosink_sinkconnect (GstPad *pad,
GstCaps *caps);
static void gst_sdlvideosink_chain (GstPad *pad,
GstData *data);
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;
@ -83,13 +103,37 @@ gst_sdlvideosink_get_type (void)
0,
(GInstanceInitFunc) gst_sdlvideosink_init,
};
static const GInterfaceInfo iface_info = {
(GInterfaceInitFunc) gst_sdlvideosink_interface_init,
NULL,
NULL,
};
static const GInterfaceInfo xoverlay_info = {
(GInterfaceInitFunc) gst_sdlvideosink_xoverlay_init,
NULL,
NULL,
};
sdlvideosink_type = g_type_register_static(GST_TYPE_VIDEOSINK,
"GstSDLVideoSink",
&sdlvideosink_info, 0);
g_type_add_interface_static(sdlvideosink_type, GST_TYPE_INTERFACE,
&iface_info);
g_type_add_interface_static(sdlvideosink_type, GST_TYPE_X_OVERLAY,
&xoverlay_info);
}
return sdlvideosink_type;
}
static void
gst_sdlvideosink_dispose (GObject *obj)
{
g_mutex_free (GST_SDLVIDEOSINK (obj)->lock);
if (((GObjectClass *) parent_class)->dispose)
((GObjectClass *) parent_class)->dispose (obj);
}
static void
gst_sdlvideosink_class_init (GstSDLVideoSinkClass *klass)
@ -106,6 +150,7 @@ gst_sdlvideosink_class_init (GstSDLVideoSinkClass *klass)
gobject_class->set_property = gst_sdlvideosink_set_property;
gobject_class->get_property = gst_sdlvideosink_get_property;
gobject_class->dispose = gst_sdlvideosink_dispose;
gstelement_class->change_state = gst_sdlvideosink_change_state;
@ -114,11 +159,73 @@ gst_sdlvideosink_class_init (GstSDLVideoSinkClass *klass)
gstvs_class->set_geometry = gst_sdlvideosink_set_geometry;*/
}
static GstBuffer *
gst_sdlvideosink_buffer_new (GstBufferPool *pool,
gint64 location,
guint size,
gpointer user_data)
{
GstSDLVideoSink *sdlvideosink = GST_SDLVIDEOSINK (user_data);
GstBuffer *buffer;
if (!sdlvideosink->overlay)
return NULL;
if (!gst_sdlvideosink_lock(sdlvideosink)) {
return NULL;
}
/* this protects the buffer from being written over multiple times */
g_mutex_lock (sdlvideosink->lock);
buffer = gst_buffer_new ();
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_DONTFREE);
GST_BUFFER_DATA (buffer) = sdlvideosink->overlay->pixels[0];
if (sdlvideosink->format == SDL_YV12_OVERLAY ||
sdlvideosink->format == SDL_IYUV_OVERLAY) {
GST_BUFFER_SIZE (buffer) =
sdlvideosink->width * sdlvideosink->height * 3/2;
} else {
GST_BUFFER_SIZE (buffer) =
sdlvideosink->width * sdlvideosink->height * 2;
}
GST_BUFFER_MAXSIZE (buffer) = GST_BUFFER_SIZE (buffer);
return buffer;
}
static void
gst_sdlvideosink_buffer_free (GstBufferPool *pool,
GstBuffer *buffer,
gpointer user_data)
{
GstSDLVideoSink *sdlvideosink = GST_SDLVIDEOSINK (user_data);
g_mutex_unlock (sdlvideosink->lock);
gst_sdlvideosink_unlock(sdlvideosink);
gst_buffer_default_free (buffer);
}
static GstBufferPool *
gst_sdlvideosink_get_bufferpool (GstPad *pad)
{
GstSDLVideoSink *sdlvideosink = GST_SDLVIDEOSINK (gst_pad_get_parent (pad));
if (sdlvideosink->overlay)
return sdlvideosink->bufferpool;
return NULL;
}
static void
gst_sdlvideosink_init (GstSDLVideoSink *sdlvideosink)
{
GST_VIDEOSINK_PAD (sdlvideosink) = gst_pad_new_from_template (sink_template,
"sink");
gst_pad_set_bufferpool_function (GST_VIDEOSINK_PAD (sdlvideosink),
gst_sdlvideosink_get_bufferpool);
gst_element_add_pad (GST_ELEMENT (sdlvideosink),
GST_VIDEOSINK_PAD (sdlvideosink));
@ -127,24 +234,79 @@ gst_sdlvideosink_init (GstSDLVideoSink *sdlvideosink)
gst_pad_set_link_function (GST_VIDEOSINK_PAD (sdlvideosink),
gst_sdlvideosink_sinkconnect);
sdlvideosink->image_width = -1;
sdlvideosink->image_height = -1;
sdlvideosink->width = -1;
sdlvideosink->height = -1;
sdlvideosink->yuv_overlay = NULL;
sdlvideosink->overlay = NULL;
sdlvideosink->screen = NULL;
sdlvideosink->window_id = -1; /* means "don't use" */
sdlvideosink->xwindow_id = 0;
sdlvideosink->capslist = capslist;
sdlvideosink->init = FALSE;
sdlvideosink->lock = g_mutex_new ();
sdlvideosink->bufferpool = gst_buffer_pool_new (
NULL, /* free */
NULL, /* copy */
(GstBufferPoolBufferNewFunction) gst_sdlvideosink_buffer_new,
NULL, /* buffer copy, the default is fine */
(GstBufferPoolBufferFreeFunction) gst_sdlvideosink_buffer_free,
sdlvideosink);
GST_FLAG_SET(sdlvideosink, GST_ELEMENT_THREAD_SUGGESTED);
GST_FLAG_SET(sdlvideosink, GST_ELEMENT_EVENT_AWARE);
}
static void
gst_sdlvideosink_interface_init (GstInterfaceClass *klass)
{
klass->supported = gst_sdlvideosink_interface_supported;
}
static gulong
static gboolean
gst_sdlvideosink_interface_supported (GstInterface *interface,
GType iface_type)
{
g_assert (iface_type == GST_TYPE_X_OVERLAY);
/* FIXME: check SDL for whether it was compiled against X, FB, etc. */
return (GST_STATE (interface) != GST_STATE_NULL);
}
static void
gst_sdlvideosink_xoverlay_init (GstXOverlayClass *klass)
{
klass->set_xwindow_id = gst_sdlvideosink_xoverlay_set_xwindow_id;
}
static void
gst_sdlvideosink_xoverlay_set_xwindow_id (GstXOverlay *overlay, XID parent)
{
GstSDLVideoSink *sdlvideosink = GST_SDLVIDEOSINK (overlay);
sdlvideosink->xwindow_id = parent;
/* are we running yet? */
if (sdlvideosink->init) {
gboolean negotiated = (sdlvideosink->overlay != NULL);
if (negotiated)
gst_sdlvideosink_destroy (sdlvideosink);
gst_sdlvideosink_initsdl (sdlvideosink);
if (negotiated)
gst_sdlvideosink_create (sdlvideosink);
}
}
static guint32
gst_sdlvideosink_get_sdl_from_fourcc (GstSDLVideoSink *sdlvideosink,
gulong code)
guint32 code)
{
switch (code)
{
@ -158,12 +320,8 @@ gst_sdlvideosink_get_sdl_from_fourcc (GstSDLVideoSink *sdlvideosink,
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 (" GST_FOURCC_FORMAT ")",
code, GST_FOURCC_ARGS(code));
default:
return 0;
}
}
}
@ -171,6 +329,13 @@ gst_sdlvideosink_get_sdl_from_fourcc (GstSDLVideoSink *sdlvideosink,
static gboolean
gst_sdlvideosink_lock (GstSDLVideoSink *sdlvideosink)
{
/* assure that we've got a screen */
if (!sdlvideosink->screen || !sdlvideosink->overlay) {
gst_element_error (GST_ELEMENT (sdlvideosink),
"Tried to lock screen without being set-up");
return FALSE;
}
/* Lock SDL/yuv-overlay */
if (SDL_MUSTLOCK(sdlvideosink->screen))
{
@ -181,13 +346,15 @@ gst_sdlvideosink_lock (GstSDLVideoSink *sdlvideosink)
return FALSE;
}
}
if (SDL_LockYUVOverlay(sdlvideosink->yuv_overlay) < 0)
if (SDL_LockYUVOverlay(sdlvideosink->overlay) < 0)
{
gst_element_error(GST_ELEMENT(sdlvideosink),
"SDL: couldn\'t lock the SDL YUV overlay: %s", SDL_GetError());
return FALSE;
}
sdlvideosink->init = TRUE;
return TRUE;
}
@ -195,31 +362,73 @@ gst_sdlvideosink_lock (GstSDLVideoSink *sdlvideosink)
static void
gst_sdlvideosink_unlock (GstSDLVideoSink *sdlvideosink)
{
/* Unlock SDL_yuv_overlay */
SDL_UnlockYUVOverlay(sdlvideosink->yuv_overlay);
/* Unlock SDL_overlay */
SDL_UnlockYUVOverlay(sdlvideosink->overlay);
if (SDL_MUSTLOCK(sdlvideosink->screen))
SDL_UnlockSurface(sdlvideosink->screen);
}
static void
gst_sdlvideosink_deinitsdl (GstSDLVideoSink *sdlvideosink)
{
if (sdlvideosink->init) {
SDL_Quit ();
sdlvideosink->init = FALSE;
}
}
static gboolean
gst_sdlvideosink_create (GstSDLVideoSink *sdlvideosink, gboolean showlogo)
gst_sdlvideosink_initsdl (GstSDLVideoSink *sdlvideosink)
{
guint8 *sbuffer;
gint i;
gst_sdlvideosink_deinitsdl (sdlvideosink);
if (!sdlvideosink->xwindow_id) {
unsetenv("SDL_WINDOWID");
} else {
char SDL_hack[32];
sprintf(SDL_hack, "%lu", sdlvideosink->xwindow_id);
setenv("SDL_WINDOWID", SDL_hack, 1);
}
/* Initialize the SDL library */
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE) < 0 ) {
gst_element_error(GST_ELEMENT (sdlvideosink),
"Couldn't initialize SDL: %s",
SDL_GetError());
return FALSE;
}
return TRUE;
}
static void
gst_sdlvideosink_destroy (GstSDLVideoSink *sdlvideosink)
{
if (sdlvideosink->overlay) {
SDL_FreeYUVOverlay(sdlvideosink->overlay);
sdlvideosink->overlay = NULL;
}
if (sdlvideosink->screen) {
SDL_FreeSurface (sdlvideosink->screen);
sdlvideosink->screen = NULL;
}
}
static gboolean
gst_sdlvideosink_create (GstSDLVideoSink *sdlvideosink)
{
if (GST_VIDEOSINK_HEIGHT (sdlvideosink) <= 0)
GST_VIDEOSINK_HEIGHT (sdlvideosink) = sdlvideosink->image_height;
GST_VIDEOSINK_HEIGHT (sdlvideosink) = sdlvideosink->height;
if (GST_VIDEOSINK_WIDTH (sdlvideosink) <= 0)
GST_VIDEOSINK_WIDTH (sdlvideosink) = sdlvideosink->image_width;
GST_VIDEOSINK_WIDTH (sdlvideosink) = sdlvideosink->width;
gst_sdlvideosink_destroy (sdlvideosink);
/* create a SDL window of the size requested by the user */
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(GST_VIDEOSINK_WIDTH (sdlvideosink),
GST_VIDEOSINK_HEIGHT (sdlvideosink), 0, SDL_SWSURFACE | SDL_RESIZABLE);
if ( sdlvideosink->screen == NULL)
GST_VIDEOSINK_HEIGHT (sdlvideosink), 0, SDL_HWSURFACE | SDL_RESIZABLE);
if (sdlvideosink->screen == NULL)
{
gst_element_error(GST_ELEMENT(sdlvideosink),
"SDL: Couldn't set %dx%d: %s", GST_VIDEOSINK_WIDTH (sdlvideosink),
@ -227,25 +436,23 @@ gst_sdlvideosink_create (GstSDLVideoSink *sdlvideosink, gboolean showlogo)
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(GST_VIDEOSINK_WIDTH (sdlvideosink),
GST_VIDEOSINK_WIDTH (sdlvideosink), sdlvideosink->format, sdlvideosink->screen);
if ( sdlvideosink->yuv_overlay == NULL )
/* create a new YUV overlay */
sdlvideosink->overlay = SDL_CreateYUVOverlay(sdlvideosink->width,
sdlvideosink->height, sdlvideosink->format, sdlvideosink->screen);
if ( sdlvideosink->overlay == NULL )
{
gst_element_error(GST_ELEMENT(sdlvideosink),
"SDL: Couldn't create SDL_yuv_overlay (%dx%d \'" GST_FOURCC_FORMAT "\'): %s",
GST_VIDEOSINK_WIDTH (sdlvideosink), GST_VIDEOSINK_HEIGHT (sdlvideosink),
"SDL: Couldn't create SDL YUV overlay (%dx%d \'" GST_FOURCC_FORMAT "\'): %s",
sdlvideosink->width, sdlvideosink->height,
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",
GST_DEBUG("Using a %dx%d %dbpp SDL screen with a %dx%d \'" GST_FOURCC_FORMAT "\' YUV overlay",
GST_VIDEOSINK_WIDTH (sdlvideosink), GST_VIDEOSINK_HEIGHT (sdlvideosink),
sdlvideosink->screen->format->BitsPerPixel,
sdlvideosink->image_width, sdlvideosink->image_height,
sdlvideosink->width, sdlvideosink->height,
GST_FOURCC_ARGS(sdlvideosink->format));
}
@ -254,39 +461,10 @@ gst_sdlvideosink_create (GstSDLVideoSink *sdlvideosink, gboolean showlogo)
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);
SDL_DisplayYUVOverlay(sdlvideosink->overlay, &(sdlvideosink->rect));
if (showlogo)
{
SDL_Event event;
while (SDL_PollEvent(&event));
if (!gst_sdlvideosink_lock(sdlvideosink)) {
g_message ("could not lock\n");
return FALSE;
}
/* Draw bands of color on the raw surface, as run indicator for debugging */
sbuffer = (char *)sdlvideosink->screen->pixels;
for (i=0; i<sdlvideosink->screen->h; i++)
{
memset(sbuffer, (i*255)/sdlvideosink->screen->h,
sdlvideosink->screen->w * sdlvideosink->screen->format->BytesPerPixel);
sbuffer += sdlvideosink->screen->pitch;
}
/* Set the windows title */
SDL_WM_SetCaption("GStreamer SDL Video Playback", "0000000");
gst_sdlvideosink_unlock(sdlvideosink);
SDL_UpdateRect(sdlvideosink->screen, 0, 0, sdlvideosink->rect.w, sdlvideosink->rect.h);
}
else
SDL_DisplayYUVOverlay(sdlvideosink->yuv_overlay, &(sdlvideosink->rect));
GST_DEBUG ("sdlvideosink: setting %08lx (" GST_FOURCC_FORMAT ")", sdlvideosink->format, GST_FOURCC_ARGS(sdlvideosink->format));
GST_DEBUG ("sdlvideosink: setting %08x (" GST_FOURCC_FORMAT ")",
sdlvideosink->format, GST_FOURCC_ARGS(sdlvideosink->format));
gst_video_sink_got_video_size (GST_VIDEOSINK (sdlvideosink),
GST_VIDEOSINK_WIDTH (sdlvideosink),
@ -312,25 +490,17 @@ gst_sdlvideosink_sinkconnect (GstPad *pad,
guint32 format;
gst_caps_get_fourcc_int(caps, "format", &format);
sdlvideosink->format =
gst_sdlvideosink_get_sdl_from_fourcc (sdlvideosink, format);
gst_caps_get_int(caps, "width", &sdlvideosink->width);
gst_caps_get_int(caps, "height", &sdlvideosink->height);
/* check whether it's in any way compatible */
switch (format)
{
case GST_MAKE_FOURCC('I','4','2','0'):
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'):
sdlvideosink->format = gst_sdlvideosink_get_sdl_from_fourcc (sdlvideosink, format);
gst_caps_get_int(caps, "width", &sdlvideosink->image_width);
gst_caps_get_int(caps, "height", &sdlvideosink->image_height);
/* try it out */
if (!sdlvideosink->format ||
!gst_sdlvideosink_create(sdlvideosink))
continue;
/* try it out */
if (!gst_sdlvideosink_create(sdlvideosink, TRUE))
return GST_PAD_LINK_REFUSED;
return GST_PAD_LINK_OK;
}
return GST_PAD_LINK_OK;
}
/* if we got here - it's not good */
@ -351,20 +521,6 @@ gst_sdlvideosink_chain (GstPad *pad, GstData *_data)
sdlvideosink = GST_SDLVIDEOSINK (gst_pad_get_parent (pad));
while (SDL_PollEvent(&sdl_event))
{
switch(sdl_event.type)
{
case SDL_VIDEORESIZE:
/* create a SDL window of the size requested by the user */
GST_VIDEOSINK_WIDTH (sdlvideosink) = sdl_event.resize.w;
GST_VIDEOSINK_HEIGHT (sdlvideosink) = sdl_event.resize.h;
gst_sdlvideosink_create(sdlvideosink, FALSE);
break;
}
}
if (GST_IS_EVENT (buf)) {
GstEvent *event = GST_EVENT (buf);
gint64 offset;
@ -372,8 +528,8 @@ gst_sdlvideosink_chain (GstPad *pad, GstData *_data)
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_DISCONTINUOUS:
offset = GST_EVENT_DISCONT_OFFSET (event, 0).value;
g_print ("sdl discont %" G_GINT64_FORMAT "\n", offset);
/*gst_clock_handle_discont (sdlvideosink->clock, (guint64) GST_EVENT_DISCONT_OFFSET (event, 0).value);*/
/*gst_clock_handle_discont (sdlvideosink->clock,
(guint64) GST_EVENT_DISCONT_OFFSET (event, 0).value);*/
break;
default:
gst_pad_event_default (pad, event);
@ -383,7 +539,6 @@ gst_sdlvideosink_chain (GstPad *pad, GstData *_data)
return;
}
GST_DEBUG ("videosink: clock wait: %" G_GUINT64_FORMAT, GST_BUFFER_TIMESTAMP(buf));
if (GST_VIDEOSINK_CLOCK (sdlvideosink)) {
GstClockID id = gst_clock_new_single_shot_id (
GST_VIDEOSINK_CLOCK (sdlvideosink),
@ -393,38 +548,50 @@ gst_sdlvideosink_chain (GstPad *pad, GstData *_data)
gst_clock_id_free (id);
}
if (!gst_sdlvideosink_lock(sdlvideosink)) {
g_message ("could not lock\n");
return;
if (GST_BUFFER_DATA (buf) != sdlvideosink->overlay->pixels[0]) {
if (!gst_sdlvideosink_lock(sdlvideosink)) {
return;
}
/* buf->yuv - FIXME: bufferpool! */
if (sdlvideosink->format == SDL_IYUV_OVERLAY ||
sdlvideosink->format == SDL_YV12_OVERLAY)
{
memcpy (sdlvideosink->overlay->pixels[0], GST_BUFFER_DATA (buf),
sdlvideosink->width * sdlvideosink->height);
memcpy (sdlvideosink->overlay->pixels[1],
GST_BUFFER_DATA (buf) + sdlvideosink->width*sdlvideosink->height,
sdlvideosink->width * sdlvideosink->height / 4);
memcpy (sdlvideosink->overlay->pixels[2],
GST_BUFFER_DATA (buf) + sdlvideosink->width*sdlvideosink->height*5/4,
sdlvideosink->width * sdlvideosink->height / 4);
} else {
memcpy (sdlvideosink->overlay->pixels[0], GST_BUFFER_DATA (buf),
sdlvideosink->width * sdlvideosink->height * 2);
}
gst_sdlvideosink_unlock(sdlvideosink);
}
/* buf->yuv */
if (sdlvideosink->format == GST_MAKE_FOURCC('I','4','2','0') ||
sdlvideosink->format == GST_MAKE_FOURCC('Y','V','1','2'))
{
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;
gst_sdlvideosink_unlock(sdlvideosink);
gst_buffer_unref(buf);
/* Show, baby, show! */
SDL_DisplayYUVOverlay(sdlvideosink->yuv_overlay, &(sdlvideosink->rect));
SDL_UpdateRect(sdlvideosink->screen,
sdlvideosink->rect.x, sdlvideosink->rect.y,
sdlvideosink->rect.w, sdlvideosink->rect.h);
SDL_DisplayYUVOverlay(sdlvideosink->overlay, &(sdlvideosink->rect));
gst_video_sink_frame_displayed (GST_VIDEOSINK (sdlvideosink));
gst_buffer_unref(buf);
while (SDL_PollEvent(&sdl_event))
{
switch(sdl_event.type)
{
case SDL_VIDEORESIZE:
/* create a SDL window of the size requested by the user */
GST_VIDEOSINK_WIDTH (sdlvideosink) = sdl_event.resize.w;
GST_VIDEOSINK_HEIGHT (sdlvideosink) = sdl_event.resize.h;
gst_sdlvideosink_create(sdlvideosink);
break;
}
}
}
@ -473,27 +640,15 @@ gst_sdlvideosink_change_state (GstElement *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, "%d", 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());
if (!gst_sdlvideosink_initsdl (sdlvideosink))
return GST_STATE_FAILURE;
}
GST_FLAG_SET (sdlvideosink, GST_SDLVIDEOSINK_OPEN);
break;
case GST_STATE_PAUSED_TO_READY:
gst_sdlvideosink_destroy (sdlvideosink);
break;
case GST_STATE_READY_TO_NULL:
/*if (sdlvideosink->yuv_overlay)
SDL_FreeYUVOverlay(sdlvideosink->yuv_overlay);
sdlvideosink->yuv_overlay = NULL;*/
SDL_Quit();
gst_sdlvideosink_deinitsdl (sdlvideosink);
GST_FLAG_UNSET (sdlvideosink, GST_SDLVIDEOSINK_OPEN);
break;
default: /* do nothing */

25
ext/sdl/sdlvideosink.h
View file

@ -17,7 +17,6 @@
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_SDLVIDEOSINK_H__
#define __GST_SDLVIDEOSINK_H__
@ -25,10 +24,7 @@
#include <SDL.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
G_BEGIN_DECLS
#define GST_TYPE_SDLVIDEOSINK \
(gst_sdlvideosink_get_type())
@ -53,16 +49,20 @@ typedef struct _GstSDLVideoSinkClass GstSDLVideoSinkClass;
struct _GstSDLVideoSink {
GstVideoSink videosink;
gulong format;
gint image_width, image_height; /* the size of the incoming YUV stream */
gint window_id;
guint32 format;
gint width, height; /* the size of the incoming YUV stream */
XID xwindow_id;
gboolean init;
GstCaps *capslist;
unsigned char *yuv[3];
SDL_Surface *screen;
SDL_Overlay *yuv_overlay;
SDL_Overlay *overlay;
SDL_Rect rect;
GMutex *lock;
GstBufferPool *bufferpool;
};
struct _GstSDLVideoSinkClass {
@ -72,9 +72,6 @@ struct _GstSDLVideoSinkClass {
GType gst_sdlsink_get_type(void);
#ifdef __cplusplus
}
#endif /* __cplusplus */
G_END_DECLS
#endif /* __GST_SDLVIDEOSINK_H__ */