gstreamer/gstplay/gstplay.c

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/*
* Initial main.c file generated by Glade. Edit as required.
* Glade will not overwrite this file.
*/
#include <config.h>
#include "gstplay.h"
#include "gstplayprivate.h"
static void gst_play_class_init (GstPlayClass *klass);
static void gst_play_init (GstPlay *play);
static void gst_play_set_arg (GtkObject *object,GtkArg *arg,guint id);
static void gst_play_get_arg (GtkObject *object,GtkArg *arg,guint id);
static void gst_play_realize (GtkWidget *play);
static void gst_play_frame_displayed (GstElement *element, GstPlay *play);
static void gst_play_audio_handoff (GstElement *element, GstPlay *play);
/* signals and args */
enum {
SIGNAL_STATE_CHANGED,
SIGNAL_FRAME_DISPLAYED,
SIGNAL_AUDIO_PLAYED,
LAST_SIGNAL
};
enum {
ARG_0,
ARG_URI,
ARG_MUTE,
ARG_STATE,
ARG_MEDIA_SIZE,
ARG_MEDIA_OFFSET,
ARG_MEDIA_TOTAL_TIME,
ARG_MEDIA_CURRENT_TIME,
};
static GtkObject *parent_class = NULL;
static guint gst_play_signals[LAST_SIGNAL] = { 0 };
GtkType
gst_play_get_type (void)
{
static GtkType play_type = 0;
if (!play_type) {
static const GtkTypeInfo play_info = {
"GstPlay",
sizeof(GstPlay),
sizeof(GstPlayClass),
(GtkClassInitFunc)gst_play_class_init,
(GtkObjectInitFunc)gst_play_init,
NULL,
NULL,
(GtkClassInitFunc)NULL,
};
play_type = gtk_type_unique (gtk_hbox_get_type (),&play_info);
}
return play_type;
}
static void
gst_play_class_init (GstPlayClass *klass)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
parent_class = gtk_type_class (gtk_hbox_get_type ());
object_class = (GtkObjectClass*)klass;
widget_class = (GtkWidgetClass*)klass;
gst_play_signals[SIGNAL_STATE_CHANGED] =
gtk_signal_new ("playing_state_changed",GTK_RUN_FIRST,object_class->type,
GTK_SIGNAL_OFFSET (GstPlayClass,state_changed),
gtk_marshal_NONE__INT,GTK_TYPE_NONE,1,
GTK_TYPE_INT);
gst_play_signals[SIGNAL_FRAME_DISPLAYED] =
gtk_signal_new ("frame_displayed",GTK_RUN_FIRST,object_class->type,
GTK_SIGNAL_OFFSET (GstPlayClass,frame_displayed),
gtk_marshal_NONE__NONE,GTK_TYPE_NONE,0);
gst_play_signals[SIGNAL_AUDIO_PLAYED] =
gtk_signal_new ("audio_played",GTK_RUN_FIRST,object_class->type,
GTK_SIGNAL_OFFSET (GstPlayClass,audio_played),
gtk_marshal_NONE__NONE,GTK_TYPE_NONE,0);
gtk_object_class_add_signals (object_class,gst_play_signals,LAST_SIGNAL);
gtk_object_add_arg_type ("GstPlay::uri",GTK_TYPE_STRING,
GTK_ARG_READABLE, ARG_URI);
gtk_object_add_arg_type ("GstPlay::mute",GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_MUTE);
gtk_object_add_arg_type ("GstPlay::state",GTK_TYPE_INT,
GTK_ARG_READABLE, ARG_STATE);
gtk_object_add_arg_type ("GstPlay::media_size",GTK_TYPE_ULONG,
GTK_ARG_READABLE, ARG_MEDIA_SIZE);
gtk_object_add_arg_type ("GstPlay::media_offset",GTK_TYPE_ULONG,
GTK_ARG_READABLE, ARG_MEDIA_OFFSET);
gtk_object_add_arg_type ("GstPlay::media_total_time",GTK_TYPE_ULONG,
GTK_ARG_READABLE, ARG_MEDIA_TOTAL_TIME);
gtk_object_add_arg_type ("GstPlay::media_current_time",GTK_TYPE_ULONG,
GTK_ARG_READABLE, ARG_MEDIA_CURRENT_TIME);
object_class->set_arg = gst_play_set_arg;
object_class->get_arg = gst_play_get_arg;
widget_class->realize = gst_play_realize;
}
static void
gst_play_init (GstPlay *play)
{
GstPlayPrivate *priv = g_new0 (GstPlayPrivate, 1);
play->priv = priv;
/* create a new bin to hold the elements */
priv->thread = gst_thread_new ("main_thread");
g_assert (priv->thread != NULL);
priv->pipeline = gst_pipeline_new ("main_pipeline");
g_assert (priv->pipeline != NULL);
/* and an audio sink */
priv->audio_play = gst_elementfactory_make ("audiosink","play_audio");
g_return_if_fail (priv->audio_play != NULL);
gtk_signal_connect (GTK_OBJECT (priv->audio_play), "handoff",
GTK_SIGNAL_FUNC (gst_play_audio_handoff), play);
/* and a video sink */
priv->video_show = gst_elementfactory_make ("videosink","show");
g_return_if_fail (priv->video_show != NULL);
gtk_object_set (GTK_OBJECT (priv->video_show),"xv_enabled",FALSE,NULL);
gtk_signal_connect (GTK_OBJECT (priv->video_show), "frame_displayed",
GTK_SIGNAL_FUNC (gst_play_frame_displayed), play);
gst_pipeline_add_sink (GST_PIPELINE (priv->pipeline), priv->audio_play);
gst_pipeline_add_sink (GST_PIPELINE (priv->pipeline), priv->video_show);
gst_bin_add (GST_BIN (priv->thread), priv->pipeline);
play->state = GST_PLAY_STOPPED;
play->flags = 0;
priv->src = NULL;
priv->muted = FALSE;
priv->can_seek = TRUE;
priv->uri = NULL;
priv->offset_element = NULL;
priv->bit_rate_element = NULL;
}
GstPlay *
gst_play_new ()
{
return GST_PLAY (gtk_type_new (GST_TYPE_PLAY));
}
static void
gst_play_eos (GstElement *element,
GstPlay *play)
{
gst_play_stop(play);
}
static void
gst_play_frame_displayed (GstElement *element,
GstPlay *play)
{
gtk_signal_emit (GTK_OBJECT (play), gst_play_signals[SIGNAL_FRAME_DISPLAYED],
NULL);
}
static void
gst_play_audio_handoff (GstElement *element,
GstPlay *play)
{
gtk_signal_emit (GTK_OBJECT (play), gst_play_signals[SIGNAL_AUDIO_PLAYED],
NULL);
}
static void
gst_play_object_introspect (GstElement *element,
const gchar *property,
GstElement **target)
{
gchar *info;
GtkArgInfo *arg;
info = gtk_object_arg_get_info( GTK_OBJECT_TYPE(element), property, &arg);
if (info) {
g_free(info);
}
else {
*target = element;
g_print("gstplay: using element \"%s\" for %s property\n",
gst_element_get_name(element), property);
}
}
/* Dumb introspection of the interface...
* this will change with glib 1.4
* */
static void
gst_play_object_added (GstElement *pipeline,
GstElement *element,
GstPlay *play)
{
GstPlayPrivate *priv;
g_return_if_fail (play != NULL);
priv = (GstPlayPrivate *)play->priv;
if (GST_FLAGS (element) & GST_ELEMENT_NO_SEEK) {
priv->can_seek = FALSE;
}
if (GST_IS_BIN (element)) {
gtk_signal_connect (GTK_OBJECT (element), "object_added", gst_play_object_added, play);
}
else {
// first come first serve here...
if (!priv->offset_element) gst_play_object_introspect(element, "offset", &priv->offset_element);
if (!priv->bit_rate_element) gst_play_object_introspect(element, "bit_rate", &priv->bit_rate_element);
}
}
GstPlayReturn
gst_play_set_uri (GstPlay *play,
const guchar *uri)
{
GstPlayPrivate *priv;
g_return_val_if_fail (play != NULL, GST_PLAY_ERROR);
g_return_val_if_fail (GST_IS_PLAY (play), GST_PLAY_ERROR);
g_return_val_if_fail (uri != NULL, GST_PLAY_ERROR);
priv = (GstPlayPrivate *)play->priv;
if (priv->src) {
}
if (priv->uri) g_free (priv->uri);
priv->uri = g_strdup (uri);
priv->src = gst_elementfactory_make ("disksrc", "disk_src");
g_return_val_if_fail (priv->src != NULL, -1);
gtk_object_set (GTK_OBJECT (priv->src),"location",uri,NULL);
gtk_signal_connect (GTK_OBJECT (priv->src), "eos", GTK_SIGNAL_FUNC (gst_play_eos), play);
gtk_signal_connect (GTK_OBJECT (priv->pipeline), "object_added", gst_play_object_added, play);
gst_pipeline_add_src (GST_PIPELINE (priv->pipeline),GST_ELEMENT (priv->src));
if (!gst_pipeline_autoplug (GST_PIPELINE (priv->pipeline))) {
return GST_PLAY_UNKNOWN_MEDIA;
}
if (GST_PAD_CONNECTED (gst_element_get_pad (priv->video_show, "sink"))) {
play->flags |= GST_PLAY_TYPE_VIDEO;
}
if (GST_PAD_CONNECTED (gst_element_get_pad (priv->audio_play, "sink"))) {
play->flags |= GST_PLAY_TYPE_AUDIO;
}
return GST_PLAY_OK;
}
static void
gst_play_realize (GtkWidget *widget)
{
GstPlay *play;
GtkWidget *video_widget;
GstPlayPrivate *priv;
g_return_if_fail (GST_IS_PLAY (widget));
play = GST_PLAY (widget);
priv = (GstPlayPrivate *)play->priv;
video_widget = gst_util_get_widget_arg (GTK_OBJECT (priv->video_show),"widget");
if (video_widget) {
gtk_container_add (GTK_CONTAINER (widget), video_widget);
gtk_widget_show (video_widget);
}
if (GTK_WIDGET_CLASS (parent_class)->realize) {
GTK_WIDGET_CLASS (parent_class)->realize (widget);
}
}
void
gst_play_play (GstPlay *play)
{
GstPlayPrivate *priv;
g_return_if_fail (play != NULL);
g_return_if_fail (GST_IS_PLAY (play));
priv = (GstPlayPrivate *)play->priv;
if (play->state == GST_PLAY_PLAYING) return;
if (play->state == GST_PLAY_STOPPED)
gst_element_set_state (GST_ELEMENT (priv->thread),GST_STATE_READY);
gst_element_set_state (GST_ELEMENT (priv->thread),GST_STATE_PLAYING);
play->state = GST_PLAY_PLAYING;
gtk_signal_emit (GTK_OBJECT (play), gst_play_signals[SIGNAL_STATE_CHANGED],
play->state);
}
void
gst_play_pause (GstPlay *play)
{
GstPlayPrivate *priv;
g_return_if_fail (play != NULL);
g_return_if_fail (GST_IS_PLAY (play));
priv = (GstPlayPrivate *)play->priv;
if (play->state != GST_PLAY_PLAYING) return;
gst_element_set_state (GST_ELEMENT (priv->thread),GST_STATE_PAUSED);
play->state = GST_PLAY_PAUSED;
gtk_signal_emit (GTK_OBJECT (play), gst_play_signals[SIGNAL_STATE_CHANGED],
play->state);
}
void
gst_play_stop (GstPlay *play)
{
GstPlayPrivate *priv;
g_return_if_fail (play != NULL);
g_return_if_fail (GST_IS_PLAY (play));
if (play->state == GST_PLAY_STOPPED) return;
priv = (GstPlayPrivate *)play->priv;
gst_element_set_state (GST_ELEMENT (priv->thread),GST_STATE_NULL);
gtk_object_set (GTK_OBJECT (priv->src),"offset",0,NULL);
play->state = GST_PLAY_STOPPED;
gtk_signal_emit (GTK_OBJECT (play), gst_play_signals[SIGNAL_STATE_CHANGED],
play->state);
}
gulong
gst_play_get_media_size (GstPlay *play)
{
GstPlayPrivate *priv;
g_return_val_if_fail (play != NULL, 0);
g_return_val_if_fail (GST_IS_PLAY (play), 0);
priv = (GstPlayPrivate *)play->priv;
return gst_util_get_long_arg (GTK_OBJECT (priv->src), "size");
}
gulong
gst_play_get_media_offset (GstPlay *play)
{
GstPlayPrivate *priv;
g_return_val_if_fail (play != NULL, 0);
g_return_val_if_fail (GST_IS_PLAY (play), 0);
priv = (GstPlayPrivate *)play->priv;
return gst_util_get_long_arg (GTK_OBJECT (priv->offset_element), "offset");
}
gulong
gst_play_get_media_total_time (GstPlay *play)
{
gulong total_time, bit_rate;
GstPlayPrivate *priv;
g_return_val_if_fail (play != NULL, 0);
g_return_val_if_fail (GST_IS_PLAY (play), 0);
priv = (GstPlayPrivate *)play->priv;
if (priv->bit_rate_element == NULL) return 0;
bit_rate = gst_util_get_long_arg (GTK_OBJECT (priv->bit_rate_element), "bit_rate");
if (bit_rate)
total_time = (gst_play_get_media_size (play) * 8) / bit_rate;
else
total_time = 0;
return total_time;
}
gulong
gst_play_get_media_current_time (GstPlay *play)
{
gulong current_time, bit_rate;
GstPlayPrivate *priv;
g_return_val_if_fail (play != NULL, 0);
g_return_val_if_fail (GST_IS_PLAY (play), 0);
priv = (GstPlayPrivate *)play->priv;
if (priv->bit_rate_element == NULL) return 0;
bit_rate = gst_util_get_long_arg (GTK_OBJECT (priv->bit_rate_element), "bit_rate");
if (bit_rate)
current_time = (gst_play_get_media_offset (play) * 8) / bit_rate;
else
current_time = 0;
return current_time;
}
gboolean
gst_play_media_can_seek (GstPlay *play)
{
GstPlayPrivate *priv;
g_return_val_if_fail (play != NULL, FALSE);
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
priv = (GstPlayPrivate *)play->priv;
return priv->can_seek;
}
void
gst_play_media_seek (GstPlay *play,
gulong offset)
{
GstPlayPrivate *priv;
g_return_if_fail (play != NULL);
g_return_if_fail (GST_IS_PLAY (play));
priv = (GstPlayPrivate *)play->priv;
gtk_object_set (GTK_OBJECT (priv->src), "offset", offset, NULL);
}
static void
gst_play_set_arg (GtkObject *object,
GtkArg *arg,
guint id)
{
GstPlay *play;
g_return_if_fail (object != NULL);
g_return_if_fail (arg != NULL);
play = GST_PLAY (object);
switch (id) {
case ARG_MUTE:
break;
default:
g_warning ("GstPlay: unknown arg!");
break;
}
}
static void
gst_play_get_arg (GtkObject *object,
GtkArg *arg,
guint id)
{
GstPlay *play;
GstPlayPrivate *priv;
g_return_if_fail (object != NULL);
g_return_if_fail (arg != NULL);
play = GST_PLAY (object);
priv = (GstPlayPrivate *)play->priv;
switch (id) {
case ARG_URI:
GTK_VALUE_STRING (*arg) = priv->uri;
break;
case ARG_MUTE:
GTK_VALUE_BOOL (*arg) = priv->muted;
break;
case ARG_STATE:
GTK_VALUE_INT (*arg) = play->state;
break;
case ARG_MEDIA_SIZE:
GTK_VALUE_LONG (*arg) = gst_play_get_media_size(play);
break;
case ARG_MEDIA_OFFSET:
GTK_VALUE_LONG (*arg) = gst_play_get_media_offset(play);
break;
case ARG_MEDIA_TOTAL_TIME:
break;
case ARG_MEDIA_CURRENT_TIME:
break;
default:
arg->type = GTK_TYPE_INVALID;
break;
}
}