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gstreamer/gstplay/gstplay.c
Wim Taymans 7ccc2cf90b Externalized the plugin information in /etc/gstreamer/reg.xml 
Original commit message from CVS:
Externalized the plugin information in /etc/gstreamer/reg.xml
- no need to do a plugin_load_all()
- plugins are loaded when needed
- typedetect functions are loaded when needed (still buggy)
- no need to check for the existance of the plugin in the codecs
- added gstreamer-register to create the reg.xml file
- renamed launch to gstreamer-launch
- plugins need to register the typefactory they provide
modified the plugins to meet the new design
modified the plugins to correctly set their pad types
autoplugging can be done without loading the plugins now
2000-08-28 20:20:55 +00:00

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/*
* Initial main.c file generated by Glade. Edit as required.
* Glade will not overwrite this file.
*/
#include <config.h>
//#define DEBUG_ENABLED
#include <glade/glade.h>
#include <gst/gstclock.h>
#include "gstplay.h"
#include "callbacks.h"
#include "interface.h"
#include "codecs.h"
#define MUTEX_STATUS() (g_mutex_trylock(gdk_threads_mutex)? g_mutex_unlock(gdk_threads_mutex), "was not locked" : "was locked")
#define BUFFER 20
extern gboolean _gst_plugin_spew;
gboolean idle_func(gpointer data);
GstElement *show, *video_render_queue;
GstElement *audio_play, *audio_render_queue;
GstElement *src;
GstPipeline *pipeline;
GstElement *parse = NULL;
GstElement *typefind;
GstElement *video_render_thread;
GstElement *audio_render_thread;
GstPlayState state;
gboolean picture_shown = FALSE;
guchar statusline[200];
guchar *statustext = "stopped";
GtkWidget *status_area;
GtkAdjustment *adjustment;
GtkWidget *play_button;
GtkWidget *pause_button;
GtkWidget *stop_button;
GtkFileSelection *open_file_selection;
gint start_from_file(guchar *filename);
static void frame_displayed(GstSrc *asrc)
{
int size, time, frame_time = 0, src_pos;
guint mux_rate;
static int prev_time = -1;
if (!parse) return;
DEBUG("gstplay: frame displayed %s\n", MUTEX_STATUS());
mux_rate = gst_util_get_int_arg(GTK_OBJECT(parse),"mux_rate");
size = gst_util_get_int_arg(GTK_OBJECT(src),"size");
time = (size*8)/mux_rate;
frame_time = gst_util_get_int_arg(GTK_OBJECT(show),"frame_time");
src_pos = gst_util_get_int_arg(GTK_OBJECT(src),"offset");
frame_time = (src_pos*8)/mux_rate;
if (frame_time >= prev_time) {
g_snprintf(statusline, 200, "%02d:%02d / %02d:%02d\n",
frame_time/60, frame_time%60,
time/60, time%60);
//printf("%d %d %g\n", frame_time, size, frame_time*100.0/size);
update_status_area(status_area);
if (state == GSTPLAY_PLAYING)
update_slider(adjustment, src_pos*100.0/size);
}
picture_shown = TRUE;
prev_time = frame_time;
DEBUG("gstplay: frame displayed end %s\n", MUTEX_STATUS());
}
gboolean idle_func(gpointer data) {
DEBUG("idle start %s\n",MUTEX_STATUS());
//gst_src_push(GST_SRC(data));
gst_bin_iterate(GST_BIN(data));
DEBUG("idle stop %s\n",MUTEX_STATUS());
return TRUE;
}
static void eof(GstSrc *src) {
change_state(GSTPLAY_PAUSE);
picture_shown = TRUE;
}
void show_next_picture() {
picture_shown = FALSE;
DEBUG("gstplay: next picture %s\n", MUTEX_STATUS());
while (!picture_shown) {
gdk_threads_leave();
gst_src_push(GST_SRC(src));
gdk_threads_enter();
}
DEBUG("gstplay: next found %s\n", MUTEX_STATUS());
}
void mute_audio(gboolean mute) {
gtk_object_set(GTK_OBJECT(audio_play),"mute",mute,NULL);
}
static void gstplay_tear_down()
{
g_print("setting to NULL state\n");
gst_element_set_state(GST_ELEMENT(pipeline),GST_STATE_NULL);
}
static void
target_drag_data_received (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *data,
guint info,
guint time)
{
if (strstr(data->data, "file:")) {
g_print("Got: %s\n",data->data);
start_from_file(g_strchomp(&data->data[5]));
}
}
void
on_exit_menu_activate (GtkMenuItem *menuitem,
gpointer user_data)
{
gdk_threads_leave();
gstplay_tear_down();
gdk_threads_enter();
gtk_main_quit();
}
void on_ok_button1_clicked (GtkButton *button,
GtkFileSelection *sel)
{
gchar *selected_filename;
selected_filename = gtk_file_selection_get_filename (GTK_FILE_SELECTION(open_file_selection));
start_from_file(selected_filename);
}
gint on_gstplay_delete_event(GtkWidget *widget, GdkEvent *event, gpointer data)
{
gdk_threads_leave();
gstplay_tear_down();
gdk_threads_enter();
return FALSE;
}
void gstplay_parse_pads_created(GstElement *element, gpointer data)
{
printf("gstplay: element \"%s\" is ready\n", gst_element_get_name(element));
gst_clock_reset(gst_clock_get_system());
}
void change_state(GstPlayState new_state) {
if (new_state == state) return;
switch (new_state) {
case GSTPLAY_PLAYING:
mute_audio(FALSE);
statustext = "playing";
update_status_area(status_area);
gst_element_set_state(GST_ELEMENT(pipeline),GST_STATE_PLAYING);
gtk_idle_add(idle_func, pipeline);
state = GSTPLAY_PLAYING;
update_buttons(0);
break;
case GSTPLAY_PAUSE:
statustext = "paused";
update_status_area(status_area);
if (state != GSTPLAY_STOPPED) gtk_idle_remove_by_data(pipeline);
mute_audio(TRUE);
state = GSTPLAY_PAUSE;
update_buttons(1);
break;
case GSTPLAY_STOPPED:
if (state != GSTPLAY_PAUSE) gtk_idle_remove_by_data(pipeline);
statustext = "stopped";
update_status_area(status_area);
mute_audio(TRUE);
state = GSTPLAY_STOPPED;
gtk_object_set(GTK_OBJECT(src),"offset",0,NULL);
update_buttons(2);
update_slider(adjustment, 0.0);
show_next_picture();
break;
}
}
static void have_type(GstSink *sink) {
gint type;
GstType *gsttype;
type = gst_util_get_int_arg(GTK_OBJECT(sink),"type");
gsttype = gst_type_find_by_id(type);
g_print("have type %d:%s\n", type, gsttype->mime);
gst_element_set_state(GST_ELEMENT(pipeline),GST_STATE_NULL);
gst_bin_remove(GST_BIN(pipeline), GST_ELEMENT(sink));
gst_pad_disconnect(gst_element_get_pad(src,"src"),
gst_element_get_pad(GST_ELEMENT(sink),"sink"));
if (strstr(gsttype->mime, "mpeg1-system")) {
parse = gst_elementfactory_make("mpeg1parse","mpeg1_system_parse");
gtk_signal_connect(GTK_OBJECT(parse),"new_pad",
GTK_SIGNAL_FUNC(mpeg1_new_pad_created),pipeline);
gtk_signal_connect(GTK_OBJECT(show),"frame_displayed",
GTK_SIGNAL_FUNC(frame_displayed),NULL);
}
else if (strstr(gsttype->mime, "mpeg2-system")) {
parse = gst_elementfactory_make("mpeg2parse","mpeg2_system_parse");
gtk_signal_connect(GTK_OBJECT(parse),"new_pad",
GTK_SIGNAL_FUNC(mpeg2_new_pad_created),pipeline);
gtk_signal_connect(GTK_OBJECT(show),"frame_displayed",
GTK_SIGNAL_FUNC(frame_displayed),NULL);
}
else if (strstr(gsttype->mime, "avi")) {
parse = gst_elementfactory_make("parseavi","parse");
gtk_signal_connect(GTK_OBJECT(parse),"new_pad",
GTK_SIGNAL_FUNC(avi_new_pad_created),pipeline);
}
else if (strstr(gsttype->mime, "mpeg1")) {
mpeg1_setup_video_thread(gst_element_get_pad(src,"src"), video_render_queue, GST_ELEMENT(pipeline));
gst_clock_reset(gst_clock_get_system());
gtk_signal_connect(GTK_OBJECT(show),"frame_displayed",
GTK_SIGNAL_FUNC(frame_displayed),NULL);
}
else if (strstr(gsttype->mime, "mp3")) {
mpeg1_setup_audio_thread(gst_element_get_pad(src,"src"), audio_render_queue, GST_ELEMENT(pipeline));
gst_clock_reset(gst_clock_get_system());
}
else {
g_print("unknown media type\n");
exit(0);
}
if (parse) {
gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(parse));
gst_pad_connect(gst_element_get_pad(src,"src"),
gst_element_get_pad(parse,"sink"));
gtk_signal_connect(GTK_OBJECT(parse),"pads_created",
GTK_SIGNAL_FUNC(gstplay_parse_pads_created),pipeline);
}
gtk_object_set(GTK_OBJECT(src),"offset",0,NULL);
g_print("setting to READY state\n");
gst_element_set_state(GST_ELEMENT(pipeline),GST_STATE_READY);
g_print("setting to PLAYING state\n");
gst_element_set_state(GST_ELEMENT(pipeline),GST_STATE_PLAYING);
g_print("set to PLAYING state\n");
}
gint start_from_file(guchar *filename)
{
src = gst_elementfactory_make("disksrc","disk_src");
g_return_val_if_fail(src != NULL, -1);
g_print("should be using file '%s'\n",filename);
gtk_object_set(GTK_OBJECT(src),"location",filename,NULL);
typefind = gst_elementfactory_make("typefind","typefind");
g_return_val_if_fail(typefind != NULL, -1);
gtk_signal_connect(GTK_OBJECT(typefind),"have_type",
GTK_SIGNAL_FUNC(have_type),NULL);
gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(src));
gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(typefind));
gtk_signal_connect(GTK_OBJECT(src),"eos",
GTK_SIGNAL_FUNC(eof),NULL);
gst_pad_connect(gst_element_get_pad(src,"src"),
gst_element_get_pad(typefind,"sink"));
g_print("setting to READY state\n");
gst_bin_create_plan(GST_BIN(pipeline));
gst_element_set_state(GST_ELEMENT(pipeline),GST_STATE_READY);
state = GSTPLAY_STOPPED;
change_state(GSTPLAY_PLAYING);
return 0;
}
static GtkTargetEntry target_table[] = {
{ "text/plain", 0, 0 }
};
int
main (int argc, char *argv[])
{
GladeXML *xml;
GtkWidget *slider, *gstplay;
bindtextdomain (PACKAGE, PACKAGE_LOCALE_DIR);
textdomain (PACKAGE);
g_thread_init(NULL);
gtk_init(&argc,&argv);
gnome_init ("gstreamer", VERSION, argc, argv);
glade_init();
glade_gnome_init();
gst_init(&argc,&argv);
//gst_plugin_load_all();
g_print("using %s\n", DATADIR"gstplay.glade");
/* load the interface */
xml = glade_xml_new(DATADIR "gstplay.glade", "gstplay");
/* connect the signals in the interface */
status_area = glade_xml_get_widget(xml, "status_area");
slider = glade_xml_get_widget(xml, "slider");
{
GtkArg arg;
GtkRange *range;
arg.name = "adjustment";
gtk_object_getv(GTK_OBJECT(slider),1,&arg);
range = GTK_RANGE(GTK_VALUE_POINTER(arg));
adjustment = gtk_range_get_adjustment(range);
gtk_signal_connect(GTK_OBJECT(adjustment),"value_changed",
GTK_SIGNAL_FUNC(on_hscale1_value_changed),NULL);
}
play_button = glade_xml_get_widget(xml, "toggle_play");
pause_button = glade_xml_get_widget(xml, "toggle_pause");
stop_button = glade_xml_get_widget(xml, "toggle_stop");
gstplay = glade_xml_get_widget(xml, "gstplay");
gtk_drag_dest_set (gstplay,
GTK_DEST_DEFAULT_ALL,
target_table, 1,
GDK_ACTION_COPY);
gtk_signal_connect (GTK_OBJECT (gstplay), "drag_data_received",
GTK_SIGNAL_FUNC (target_drag_data_received),
NULL);
gst_plugin_load("videosink");
g_snprintf(statusline, 200, "seeking");
pipeline = gst_pipeline_new("main_pipeline");
g_return_val_if_fail(pipeline != NULL, -1);
video_render_thread = gst_thread_new("video_render_thread");
g_return_val_if_fail(video_render_thread != NULL, -1);
show = gst_elementfactory_make("videosink","show");
g_return_val_if_fail(show != NULL, -1);
gtk_object_set(GTK_OBJECT(show),"xv_enabled",FALSE,NULL);
gnome_dock_set_client_area(GNOME_DOCK(glade_xml_get_widget(xml, "dock1")),
gst_util_get_widget_arg(GTK_OBJECT(show),"widget"));
gst_bin_add(GST_BIN(video_render_thread),GST_ELEMENT(show));
gst_element_add_ghost_pad(GST_ELEMENT(video_render_thread),
gst_element_get_pad(show,"sink"));
glade_xml_signal_autoconnect(xml);
video_render_queue = gst_elementfactory_make("queue","video_render_queue");
gtk_object_set(GTK_OBJECT(video_render_queue),"max_level",BUFFER,NULL);
gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(video_render_queue));
gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(video_render_thread));
gst_pad_connect(gst_element_get_pad(video_render_queue,"src"),
gst_element_get_pad(video_render_thread,"sink"));
gtk_object_set(GTK_OBJECT(video_render_thread),"create_thread",TRUE,NULL);
audio_render_thread = gst_thread_new("audio_render_thread");
g_return_val_if_fail(audio_render_thread != NULL, -1);
audio_play = gst_elementfactory_make("audiosink","play_audio");
gst_bin_add(GST_BIN(audio_render_thread),GST_ELEMENT(audio_play));
gst_element_add_ghost_pad(GST_ELEMENT(audio_render_thread),
gst_element_get_pad(audio_play,"sink"));
audio_render_queue = gst_elementfactory_make("queue","audio_render_queue");
gtk_object_set(GTK_OBJECT(audio_render_queue),"max_level",BUFFER,NULL);
gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(audio_render_queue));
gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(audio_render_thread));
gst_pad_connect(gst_element_get_pad(audio_render_queue,"src"),
gst_element_get_pad(audio_render_thread,"sink"));
gtk_object_set(GTK_OBJECT(audio_render_thread),"create_thread",TRUE,NULL);
if (argc > 1) {
gint ret;
ret = start_from_file(argv[1]);
if (ret < 0) exit(ret);
}
gdk_threads_enter();
gtk_main();
gdk_threads_leave();
return 0;
}
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