Commit 25c51917 authored by David Schleef's avatar David Schleef

Add appsrc/appsink example.

Original commit message from CVS:
* configure.ac:
* examples/Makefile.am:
* examples/app/Makefile.am:
* examples/app/appsrc_ex.c:
Add appsrc/appsink example.
* gst-libs/gst/app/Makefile.am:
* gst-libs/gst/app/gstapp.c:
* gst-libs/gst/app/gstappsink.c:
* gst-libs/gst/app/gstappsink.h:
* gst/app/gstapp.c:
Add appsink.
parent 4300e22d
2007-03-10 David Schleef <ds@schleef.org>
* configure.ac:
* examples/Makefile.am:
* examples/app/Makefile.am:
* examples/app/appsrc_ex.c:
Add appsrc/appsink example.
* gst-libs/gst/app/Makefile.am:
* gst-libs/gst/app/gstapp.c:
* gst-libs/gst/app/gstappsink.c:
* gst-libs/gst/app/gstappsink.h:
* gst/app/gstapp.c:
Add appsink.
2007-03-10 Tim-Philipp Müller <tim at centricular dot net>
* ext/nas/nassink.c: (NAS_createFlow):
......
......@@ -1088,6 +1088,7 @@ sys/directdraw/Makefile
sys/directsound/Makefile
sys/osxvideo/Makefile
examples/Makefile
examples/app/Makefile
examples/directfb/Makefile
ext/amrwb/Makefile
ext/alsaspdif/Makefile
......
......@@ -5,5 +5,5 @@ else
DIRECTFB_DIR=
endif
SUBDIRS= $(DIRECTFB_DIR)
DIST_SUBDIRS= directfb
SUBDIRS= $(DIRECTFB_DIR) app
DIST_SUBDIRS= directfb app
noinst_PROGRAMS = appsrc_ex
appsrc_ex_SOURCES = appsrc_ex.c
appsrc_ex_CFLAGS = $(GST_CFLAGS) $(GCONF_CFLAGS)
appsrc_ex_LDFLAGS = \
$(GST_LIBS) \
$(top_builddir)/gst-libs/gst/app/libgstapp-@GST_MAJORMINOR@.la
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/app/gstappsrc.h>
#include <gst/app/gstappbuffer.h>
#include <gst/app/gstappsink.h>
#include <stdio.h>
#include <string.h>
typedef struct _App App;
struct _App
{
GstElement *pipe;
GstElement *src;
GstElement *id;
GstElement *sink;
};
App s_app;
static void dont_eat_my_chicken_wings (void *priv);
int
main (int argc, char *argv[])
{
App *app = &s_app;
int i;
gst_init (&argc, &argv);
app->pipe = gst_pipeline_new (NULL);
g_assert (app->pipe);
app->src = gst_element_factory_make ("appsrc", NULL);
g_assert (app->src);
gst_bin_add (GST_BIN (app->pipe), app->src);
app->id = gst_element_factory_make ("identity", NULL);
g_assert (app->id);
gst_bin_add (GST_BIN (app->pipe), app->id);
app->sink = gst_element_factory_make ("appsink", NULL);
g_assert (app->sink);
gst_bin_add (GST_BIN (app->pipe), app->sink);
gst_element_link (app->src, app->id);
gst_element_link (app->id, app->sink);
gst_element_set_state (app->pipe, GST_STATE_PLAYING);
for (i = 0; i < 10; i++) {
GstBuffer *buf;
void *data;
data = malloc (100);
memset (data, i, 100);
printf ("%d: creating buffer for pointer %p\n", i, data);
buf = gst_app_buffer_new (data, 100, dont_eat_my_chicken_wings, data);
gst_app_src_push_buffer (GST_APP_SRC (app->src), buf);
}
gst_app_src_end_of_stream (GST_APP_SRC (app->src));
while (!gst_app_sink_end_of_stream (GST_APP_SINK (app->sink))) {
GstBuffer *buf;
buf = gst_app_sink_pull_buffer (GST_APP_SINK (app->sink));
gst_buffer_unref (buf);
}
return 0;
}
static void
dont_eat_my_chicken_wings (void *priv)
{
printf ("freeing buffer for pointer %p\n", priv);
free (priv);
}
lib_LTLIBRARIES = libgstapp-@GST_MAJORMINOR@.la
libgstapp_@GST_MAJORMINOR@_la_SOURCES = gstappsrc.c gstappbuffer.c
libgstapp_@GST_MAJORMINOR@_la_SOURCES = gstappsrc.c gstappbuffer.c gstappsink.c
libgstapp_@GST_MAJORMINOR@_la_CFLAGS = $(GST_CFLAGS) $(GST_BASE_CFLAGS) \
$(GST_PLUGINS_BASE_CFLAGS)
libgstapp_@GST_MAJORMINOR@_la_LIBADD = $(GST_BASE_LIBS)
......@@ -9,5 +9,6 @@ libgstapp_@GST_MAJORMINOR@_la_LDFLAGS = $(GST_LDFLAGS)
libgstapp_@GST_MAJORMINOR@includedir = $(includedir)/gstreamer-@GST_MAJORMINOR@/gst/app
libgstapp_@GST_MAJORMINOR@include_HEADERS = \
gstappsrc.h \
gstappbuffer.h
gstappbuffer.h \
gstappsink.h
/* GStreamer
* Copyright (C) 2007 David Schleef <ds@schleef.org>
*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/base/gstbasesink.h>
#include <string.h>
#include "gstappsink.h"
GST_DEBUG_CATEGORY (app_sink_debug);
#define GST_CAT_DEFAULT app_sink_debug
static const GstElementDetails app_sink_details =
GST_ELEMENT_DETAILS ("AppSink",
"FIXME",
"FIXME",
"autogenerated by makefilter");
enum
{
PROP_0
};
static GstStaticPadTemplate gst_app_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
static void gst_app_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_app_sink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void gst_app_sink_dispose (GObject * object);
static gboolean gst_app_sink_start (GstBaseSink * psink);
static gboolean gst_app_sink_stop (GstBaseSink * psink);
static gboolean gst_app_sink_event (GstBaseSink * sink, GstEvent * event);
static GstFlowReturn gst_app_sink_render (GstBaseSink * psink,
GstBuffer * buffer);
GST_BOILERPLATE (GstAppSink, gst_app_sink, GstBaseSink, GST_TYPE_BASE_SINK);
static void
gst_app_sink_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
//GObjectClass *gobject_class = G_OBJECT_CLASS (g_class);
GST_DEBUG_CATEGORY_INIT (app_sink_debug, "appsink", 0, "appsink element");
gst_element_class_set_details (element_class, &app_sink_details);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_app_sink_template));
}
static void
gst_app_sink_class_init (GstAppSinkClass * klass)
{
GObjectClass *gobject_class = (GObjectClass *) klass;
GstBaseSinkClass *basesink_class = (GstBaseSinkClass *) klass;
gobject_class->set_property = gst_app_sink_set_property;
gobject_class->get_property = gst_app_sink_get_property;
gobject_class->dispose = gst_app_sink_dispose;
basesink_class->start = gst_app_sink_start;
basesink_class->stop = gst_app_sink_stop;
basesink_class->event = gst_app_sink_event;
basesink_class->render = gst_app_sink_render;
}
static void
gst_app_sink_dispose (GObject * obj)
{
GstAppSink *appsink = GST_APP_SINK (obj);
if (appsink->caps) {
gst_caps_unref (appsink->caps);
appsink->caps = NULL;
}
if (appsink->mutex) {
g_mutex_free (appsink->mutex);
appsink->mutex = NULL;
}
if (appsink->cond) {
g_cond_free (appsink->cond);
appsink->cond = NULL;
}
if (appsink->queue) {
g_queue_free (appsink->queue);
appsink->queue = NULL;
}
G_OBJECT_CLASS (parent_class)->dispose (obj);
}
static void
gst_app_sink_init (GstAppSink * appsink, GstAppSinkClass * klass)
{
appsink->mutex = g_mutex_new ();
appsink->cond = g_cond_new ();
appsink->queue = g_queue_new ();
}
static void
gst_app_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstAppSink *appsink = GST_APP_SINK (object);
GST_OBJECT_LOCK (appsink);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
GST_OBJECT_UNLOCK (appsink);
}
static void
gst_app_sink_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstAppSink *appsink = GST_APP_SINK (object);
GST_OBJECT_LOCK (appsink);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
GST_OBJECT_UNLOCK (appsink);
}
static gboolean
gst_app_sink_start (GstBaseSink * psink)
{
GstAppSink *appsink = GST_APP_SINK (psink);
appsink->end_of_stream = FALSE;
return TRUE;
}
static gboolean
gst_app_sink_stop (GstBaseSink * psink)
{
//GstAppSink *appsink = GST_APP_SINK(psink);
return TRUE;
}
static gboolean
gst_app_sink_event (GstBaseSink * sink, GstEvent * event)
{
GstAppSink *appsink = GST_APP_SINK (sink);
switch (event->type) {
case GST_EVENT_EOS:
appsink->end_of_stream = TRUE;
break;
default:
break;
}
gst_object_unref (sink);
return FALSE;
}
static GstFlowReturn
gst_app_sink_render (GstBaseSink * psink, GstBuffer * buffer)
{
GstAppSink *appsink = GST_APP_SINK (psink);
g_mutex_lock (appsink->mutex);
g_queue_push_tail (appsink->queue, gst_buffer_ref (buffer));
g_cond_signal (appsink->cond);
g_mutex_unlock (appsink->mutex);
return GST_FLOW_OK;
}
/* external API */
/**
* gst_app_sink_set_caps:
* @appsink:
* @caps:
*
* Set the capabilities on the appsink element. This function takes
* ownership of the caps structure.
*/
void
gst_app_sink_set_caps (GstAppSink * appsink, GstCaps * caps)
{
g_return_if_fail (appsink != NULL);
g_return_if_fail (GST_IS_APP_SINK (appsink));
gst_caps_replace (&appsink->caps, caps);
}
gboolean
gst_app_sink_end_of_stream (GstAppSink * appsink)
{
gboolean ret;
g_return_val_if_fail (appsink != NULL, FALSE);
g_return_val_if_fail (GST_IS_APP_SINK (appsink), FALSE);
g_mutex_lock (appsink->mutex);
if (appsink->end_of_stream && g_queue_is_empty (appsink->queue)) {
ret = TRUE;
} else {
ret = FALSE;
}
g_mutex_unlock (appsink->mutex);
return ret;
}
GstBuffer *
gst_app_sink_pull_buffer (GstAppSink * appsink)
{
GstBuffer *buf = NULL;
g_return_val_if_fail (appsink != NULL, NULL);
g_return_val_if_fail (GST_IS_APP_SINK (appsink), NULL);
g_mutex_lock (appsink->mutex);
while (g_queue_is_empty (appsink->queue)) {
if (appsink->end_of_stream)
goto out;
g_cond_wait (appsink->cond, appsink->mutex);
}
buf = g_queue_pop_head (appsink->queue);
out:
g_mutex_unlock (appsink->mutex);
return buf;
}
......@@ -17,25 +17,55 @@
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifndef _GST_APP_SINK_H_
#define _GST_APP_SINK_H_
#include <gst/gst.h>
#include <gst/base/gstbasesink.h>
G_BEGIN_DECLS
#define GST_TYPE_APP_SINK \
(gst_app_sink_get_type())
#define GST_APP_SINK(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_APP_SINK,GstAppSink))
#define GST_APP_SINK_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_APP_SINK,GstAppSinkClass))
#define GST_IS_APP_SINK(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_APP_SINK))
#define GST_IS_APP_SINK_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_APP_SINK))
typedef struct _GstAppSink GstAppSink;
typedef struct _GstAppSinkClass GstAppSinkClass;
struct _GstAppSink
{
GstBaseSink basesink;
#include "gstappsrc.h"
/*< private >*/
GstCaps *caps;
static gboolean
plugin_init (GstPlugin * plugin)
GCond *cond;
GMutex *mutex;
GQueue *queue;
gboolean end_of_stream;
};
struct _GstAppSinkClass
{
GST_DEBUG_CATEGORY_INIT (app_src_debug, "appsrc", 0, "appsrc");
GstBaseSinkClass basesink_class;
};
GType gst_app_sink_get_type(void);
GST_DEBUG_CATEGORY_EXTERN (app_sink_debug);
return gst_element_register (plugin, "appsrc", GST_RANK_NONE,
GST_TYPE_APP_SRC);
}
void gst_app_sink_set_caps (GstAppSink *appsink, GstCaps *caps);
gboolean gst_app_sink_end_of_stream (GstAppSink *appsink);
GstBuffer *gst_app_sink_pull_buffer (GstAppSink *appsink);
G_END_DECLS
#endif
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"app",
"Elements used to communicate with applications",
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
......@@ -24,14 +24,15 @@
#include <gst/gst.h>
#include <gst/app/gstappsrc.h>
#include <gst/app/gstappsink.h>
static gboolean
plugin_init (GstPlugin * plugin)
{
GST_DEBUG_CATEGORY_INIT (app_src_debug, "appsrc", 0, "appsrc");
gst_element_register (plugin, "appsrc", GST_RANK_NONE, GST_TYPE_APP_SRC);
gst_element_register (plugin, "appsink", GST_RANK_NONE, GST_TYPE_APP_SINK);
return gst_element_register (plugin, "appsrc", GST_RANK_NONE,
GST_TYPE_APP_SRC);
return TRUE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment