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added sdl

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Original commit message from CVS:
added sdl
This commit is contained in:
Thomas Vander Stichele 2001-12-20 23:21:15 +00:00
parent 2819ff07ce
commit a108514e7a
4 changed files with 496 additions and 3 deletions
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7
configure.ac
View file

@ -568,9 +568,9 @@ dnl AC_CHECK_HEADERS(rtp/rtp-audio.h, :, HAVE_LIBRTP=no)
dnl *** SDL ***
translit(dnm, m, l) AM_CONDITIONAL(USE_LIBSDL, true)
GST_CHECK_FEATURE(LIBSDL, [SDL plugin], sdlvideosink, [
AM_PATH_SDL(, HAVE_LIBSDL=yes, HAVE_LIBSDL=no)
translit(dnm, m, l) AM_CONDITIONAL(USE_SDL, true)
GST_CHECK_FEATURE(SDL, [SDL plugin], sdlvideosink, [
AM_PATH_SDL(, HAVE_SDL=yes, HAVE_SDL=no)
])
dnl *** shout ***
@ -1147,6 +1147,7 @@ sys/xvideo/Makefile
ext/Makefile
ext/esd/Makefile
ext/mad/Makefile
ext/sdl/Makefile
ext/vorbis/Makefile
)

11
ext/sdl/Makefile.am Normal file
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@ -0,0 +1,11 @@
plugindir = $(libdir)/gst
plugin_LTLIBRARIES = libsdlvideosink.la
libsdlvideosink_la_SOURCES = sdlvideosink.c
## FIXME I have my doubts about these opti flags
libsdlvideosink_la_CFLAGS = -ffast-math -finline-functions $(GST_CFLAGS) $(SDL_CFLAGS)
libsdlvideosink_la_LIBADD = $(SDL_LIBS)
noinst_HEADERS = sdlvideosink.h

394
ext/sdl/sdlvideosink.c Normal file
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@ -0,0 +1,394 @@
/* GStreamer SDL plugin
* Copyright (C) 2001 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* 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.
*/
/* let's not forget to mention that all this was based on aasink ;-) */
#include <config.h>
#include <signal.h>
#include <string.h>
#include <sys/time.h>
#include "sdlvideosink.h"
static GstElementDetails gst_sdlvideosink_details = {
"Video sink",
"Sink/Video",
"An SDL-based videosink",
VERSION,
"Ronald Bultje <rbultje@ronald.bitfreak.net>",
"(C) 2001",
};
/* sdlvideosink signals and args */
enum {
SIGNAL_FRAME_DISPLAYED,
SIGNAL_HAVE_SIZE,
LAST_SIGNAL
};
enum {
ARG_0,
ARG_WIDTH,
ARG_HEIGHT,
ARG_DRIVER,
ARG_DITHER,
ARG_BRIGHTNESS,
ARG_CONTRAST,
ARG_GAMMA,
ARG_INVERSION,
ARG_RANDOMVAL,
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 GstElementClass *parent_class = NULL;
static guint gst_sdlvideosink_signals[LAST_SIGNAL] = { 0 };
GType
gst_sdlvideosink_get_type (void)
{
static GType sdlvideosink_type = 0;
if (!sdlvideosink_type) {
static const GTypeInfo sdlvideosink_info = {
sizeof(GstSDLVideoSinkClass), NULL,
NULL,
(GClassInitFunc)gst_sdlvideosink_class_init,
NULL,
NULL,
sizeof(GstSDLVideoSink),
0,
(GInstanceInitFunc)gst_sdlvideosink_init,
};
sdlvideosink_type = g_type_register_static(GST_TYPE_ELEMENT, "GstSDLVideoSink", &sdlvideosink_info, 0);
}
return sdlvideosink_type;
}
static void
gst_sdlvideosink_class_init (GstSDLVideoSinkClass *klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass*)klass;
gstelement_class = (GstElementClass*)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_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
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;
}
static void
gst_sdlvideosink_newcaps (GstPad *pad, GstCaps *caps)
{
GstSDLVideoSink *sdlvideosink;
gulong print_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");
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");
return;
}
else {
GST_DEBUG(0, "SDL: Set %dx%d @ %d bpp\n", sdlvideosink->width,
sdlvideosink->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());
return;
}
sdlvideosink->rect.x = 0;
sdlvideosink->rect.y = 0;
sdlvideosink->rect.w = sdlvideosink->width;
sdlvideosink->rect.h = sdlvideosink->height;
SDL_DisplayYUVOverlay(sdlvideosink->yuv_overlay, &(sdlvideosink->rect));
/* make stupid SDL *not* react on SIGINT */
signal(SIGINT, SIG_DFL);
GST_DEBUG (0, "sdlvideosink: setting %08lx (%4.4s)\n", sdlvideosink->format, (gchar*)&print_format);
g_signal_emit (G_OBJECT (sdlvideosink), gst_sdlvideosink_signals[SIGNAL_HAVE_SIZE], 0,
sdlvideosink->width, sdlvideosink->height);
}
static void
gst_sdlvideosink_init (GstSDLVideoSink *sdlvideosink)
{
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);
sdlvideosink->clock = gst_clock_get_system();
gst_clock_register(sdlvideosink->clock, GST_OBJECT(sdlvideosink));
sdlvideosink->width = -1;
sdlvideosink->height = -1;
GST_FLAG_SET(sdlvideosink, GST_ELEMENT_THREAD_SUGGESTED);
}
static void
gst_sdlvideosink_chain (GstPad *pad, GstBuffer *buf)
{
GstSDLVideoSink *sdlvideosink;
GstClockTimeDiff jitter;
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (buf != NULL);
sdlvideosink = GST_SDLVIDEOSINK (gst_pad_get_parent (pad));
if (!GST_BUFFER_FLAG_IS_SET(buf, GST_BUFFER_FLUSH)) {
GST_DEBUG (0,"videosink: clock wait: %llu\n", GST_BUFFER_TIMESTAMP(buf));
jitter = gst_clock_current_diff(sdlvideosink->clock, GST_BUFFER_TIMESTAMP (buf));
if (jitter > 500000 || jitter < -500000)
{
GST_DEBUG (0, "jitter: %lld\n", jitter);
gst_clock_set (sdlvideosink->clock, GST_BUFFER_TIMESTAMP (buf));
}
else {
gst_clock_wait(sdlvideosink->clock, GST_BUFFER_TIMESTAMP(buf), GST_OBJECT(sdlvideosink));
}
}
/* Lock SDL/yuv-overlay */
if ( SDL_LockSurface(sdlvideosink->screen) < 0 ) {
GST_ERROR(0, "SDL_LockSurface(sdlvideosink->screen) < 0");
return;
}
if (SDL_LockYUVOverlay(sdlvideosink->yuv_overlay) < 0) {
GST_ERROR(0, "SDL_LockYUVOverlay(sdlvideosink->yuv_overlay) < 0");
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;
/* 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);
/* Show, baby, show! */
SDL_DisplayYUVOverlay(sdlvideosink->yuv_overlay, &(sdlvideosink->rect));
SDL_UpdateRect(sdlvideosink->screen, 0, 0, sdlvideosink->width, sdlvideosink->height);
g_signal_emit(G_OBJECT(sdlvideosink),gst_sdlvideosink_signals[SIGNAL_FRAME_DISPLAYED],0);
gst_buffer_unref(buf);
}
static void
gst_sdlvideosink_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
{
GstSDLVideoSink *sdlvideosink;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_SDLVIDEOSINK (object));
sdlvideosink = GST_SDLVIDEOSINK (object);
}
static void
gst_sdlvideosink_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
GstSDLVideoSink *sdlvideosink;
/* it's not null if we got it, but it might not be ours */
sdlvideosink = GST_SDLVIDEOSINK(object);
switch (prop_id) {
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;
}
}
}
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)
{
g_return_val_if_fail (GST_IS_SDLVIDEOSINK (element), GST_STATE_FAILURE);
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)))
return GST_STATE_FAILURE;
}
}
if (GST_ELEMENT_CLASS (parent_class)->change_state)
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
return GST_STATE_SUCCESS;
}
static gboolean
plugin_init (GModule *module, GstPlugin *plugin)
{
GstElementFactory *factory;
/* 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));
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
return TRUE;
}
GstPluginDesc plugin_desc = {
GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"sdlvideosink",
plugin_init
};

87
ext/sdl/sdlvideosink.h Normal file
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@ -0,0 +1,87 @@
/* GStreamer SDL plugin
* Copyright (C) 2001 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* 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.
*/
#ifndef __GST_SDLVIDEOSINK_H__
#define __GST_SDLVIDEOSINK_H__
#include <gst/gst.h>
#include <SDL.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define GST_TYPE_SDLVIDEOSINK \
(gst_sdlvideosink_get_type())
#define GST_SDLVIDEOSINK(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SDLVIDEOSINK,GstSDLVideoSink))
#define GST_SDLVIDEOSINK_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SDLVIDEOSINK,GstSDLVideoSink))
#define GST_IS_SDLVIDEOSINK(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SDLVIDEOSINK))
#define GST_IS_SDLVIDEOSINK_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SDLVIDEOSINK))
typedef enum {
GST_SDLVIDEOSINK_OPEN = GST_ELEMENT_FLAG_LAST,
GST_SDLVIDEOSINK_FLAG_LAST = GST_ELEMENT_FLAG_LAST + 2,
} GstSDLVideoSinkFlags;
typedef struct _GstSDLVideoSink GstSDLVideoSink;
typedef struct _GstSDLVideoSinkClass GstSDLVideoSinkClass;
struct _GstSDLVideoSink {
GstElement element;
GstPad *sinkpad;
gulong format;
gint width, height;
gint frames_displayed;
guint64 frame_time;
GstClock *clock;
unsigned char *yuv[3];
SDL_Surface *screen;
SDL_Overlay *yuv_overlay;
SDL_Rect rect;
};
struct _GstSDLVideoSinkClass {
GstElementClass parent_class;
/* signals */
void (*frame_displayed) (GstElement *element);
void (*have_size) (GstElement *element, guint width, guint height);
};
GType gst_sdlsink_get_type(void);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GST_SDLVIDEOSINK_H__ */