From 86a025734afc75f43e62d61a044fe4fe19054545 Mon Sep 17 00:00:00 2001 From: Thomas Vander Stichele Date: Tue, 28 May 2002 20:30:11 +0000 Subject: moving stuff Original commit message from CVS: moving stuff --- examples/seeking/Makefile.am | 7 + examples/seeking/seek.c | 531 +++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 538 insertions(+) create mode 100644 examples/seeking/Makefile.am create mode 100644 examples/seeking/seek.c (limited to 'examples') diff --git a/examples/seeking/Makefile.am b/examples/seeking/Makefile.am new file mode 100644 index 00000000..ec73f0e2 --- /dev/null +++ b/examples/seeking/Makefile.am @@ -0,0 +1,7 @@ +examples = seek + +noinst_PROGRAMS = $(examples) + +# we have nothing but apps here, we can do this safely +LIBS = $(GST_LIBS) $(GTK_LIBS) +CFLAGS = $(GST_CFLAGS) $(GTK_CFLAGS) diff --git a/examples/seeking/seek.c b/examples/seeking/seek.c new file mode 100644 index 00000000..50a311cd --- /dev/null +++ b/examples/seeking/seek.c @@ -0,0 +1,531 @@ +#include +#include +#include +#include + +static GList *seekables = NULL; +static GList *rate_pads = NULL; + +static GstElement *pipeline; +static guint64 duration, position; +static GtkAdjustment *adjustment; + +static guint update_id; + +#define UPDATE_INTERVAL 500 + +#define THREAD + +typedef struct +{ + const gchar *padname; + GstPad *target; + GstElement *bin; +} dyn_connect; + +static void +dynamic_connect (GstPadTemplate *templ, GstPad *newpad, gpointer data) +{ + dyn_connect *connect = (dyn_connect *) data; + + if (!strcmp (gst_pad_get_name (newpad), connect->padname)) { + gst_element_set_state (pipeline, GST_STATE_PAUSED); + gst_bin_add (GST_BIN (pipeline), connect->bin); + gst_pad_connect (newpad, connect->target); + gst_element_set_state (pipeline, GST_STATE_PLAYING); + + seekables = g_list_prepend (seekables, newpad); + rate_pads = g_list_prepend (rate_pads, newpad); + } +} + +static void +setup_dynamic_connection (GstElement *element, const gchar *padname, GstPad *target, GstElement *bin) +{ + dyn_connect *connect; + + connect = g_new0 (dyn_connect, 1); + connect->padname = g_strdup (padname); + connect->target = target; + connect->bin = bin; + + g_signal_connect (G_OBJECT (element), "new_pad", G_CALLBACK (dynamic_connect), connect); +} + +static GstElement* +make_parse_pipeline (const gchar *location) +{ + GstElement *pipeline; + GstElement *src, *parser, *fakesink; + GstPad *seekable; + + pipeline = gst_pipeline_new ("app"); + + src = gst_element_factory_make ("filesrc", "src"); + parser = gst_element_factory_make ("mpegparse", "parse"); + fakesink = gst_element_factory_make ("fakesink", "sink"); + g_object_set (G_OBJECT (fakesink), "sync", TRUE, NULL); + + g_object_set (G_OBJECT (src), "location", location, NULL); + + gst_bin_add (GST_BIN (pipeline), src); + gst_bin_add (GST_BIN (pipeline), parser); + gst_bin_add (GST_BIN (pipeline), fakesink); + + gst_element_connect (src, parser); + gst_element_connect (parser, fakesink); + + seekable = gst_element_get_pad (parser, "src"); + seekables = g_list_prepend (seekables, seekable); + rate_pads = g_list_prepend (rate_pads, seekable); + rate_pads = g_list_prepend (rate_pads, gst_element_get_pad (parser, "sink")); + + return pipeline; +} + +static GstElement* +make_mp3_pipeline (const gchar *location) +{ + GstElement *pipeline; + GstElement *src, *decoder, *osssink; + GstPad *seekable; + + pipeline = gst_pipeline_new ("app"); + + src = gst_element_factory_make ("filesrc", "src"); + decoder = gst_element_factory_make ("mad", "dec"); + osssink = gst_element_factory_make ("osssink", "sink"); + + g_object_set (G_OBJECT (src), "location", location, NULL); + g_object_set (G_OBJECT (osssink), "fragment", 0x00180008, NULL); + + gst_bin_add (GST_BIN (pipeline), src); + gst_bin_add (GST_BIN (pipeline), decoder); + gst_bin_add (GST_BIN (pipeline), osssink); + + gst_element_connect (src, decoder); + gst_element_connect (decoder, osssink); + + seekable = gst_element_get_pad (decoder, "src"); + seekables = g_list_prepend (seekables, seekable); + rate_pads = g_list_prepend (rate_pads, seekable); + rate_pads = g_list_prepend (rate_pads, gst_element_get_pad (decoder, "sink")); + + return pipeline; +} + +static GstElement* +make_avi_pipeline (const gchar *location) +{ + GstElement *pipeline, *audio_bin, *video_bin; + GstElement *src, *demux, *a_decoder, *v_decoder, *audiosink, *videosink; + GstElement *a_queue = NULL, *audio_thread = NULL, *v_queue = NULL, *video_thread = NULL; + GstPad *seekable; + + pipeline = gst_pipeline_new ("app"); + + src = gst_element_factory_make ("filesrc", "src"); + g_object_set (G_OBJECT (src), "location", location, NULL); + + demux = gst_element_factory_make ("avidemux", "demux"); + + gst_bin_add (GST_BIN (pipeline), src); + gst_bin_add (GST_BIN (pipeline), demux); + gst_element_connect (src, demux); + + audio_bin = gst_bin_new ("a_decoder_bin"); + a_decoder = gst_element_factory_make ("mad", "a_dec"); + audio_thread = gst_thread_new ("a_decoder_thread"); + audiosink = gst_element_factory_make ("osssink", "a_sink"); + g_object_set (G_OBJECT (audiosink), "fragment", 0x00180008, NULL); + a_queue = gst_element_factory_make ("queue", "a_queue"); + gst_element_connect (a_decoder, a_queue); + gst_element_connect (a_queue, audiosink); + gst_bin_add (GST_BIN (audio_bin), a_decoder); + gst_bin_add (GST_BIN (audio_bin), audio_thread); + gst_bin_add (GST_BIN (audio_thread), a_queue); + gst_bin_add (GST_BIN (audio_thread), audiosink); + gst_element_set_state (audio_bin, GST_STATE_READY); + + setup_dynamic_connection (demux, "audio_00", gst_element_get_pad (a_decoder, "sink"), audio_bin); + + seekable = gst_element_get_pad (a_queue, "src"); + seekables = g_list_prepend (seekables, seekable); + rate_pads = g_list_prepend (rate_pads, seekable); + rate_pads = g_list_prepend (rate_pads, gst_element_get_pad (a_decoder, "sink")); + + video_bin = gst_bin_new ("v_decoder_bin"); + //v_decoder = gst_element_factory_make ("identity", "v_dec"); + v_decoder = gst_element_factory_make ("windec", "v_dec"); + video_thread = gst_thread_new ("v_decoder_thread"); + videosink = gst_element_factory_make ("xvideosink", "v_sink"); + //videosink = gst_element_factory_make ("fakesink", "v_sink"); + //g_object_set (G_OBJECT (videosink), "sync", TRUE, NULL); + v_queue = gst_element_factory_make ("queue", "v_queue"); + g_object_set (G_OBJECT (v_queue), "max_level", 10, NULL); + gst_element_connect (v_decoder, v_queue); + gst_element_connect (v_queue, videosink); + gst_bin_add (GST_BIN (video_bin), v_decoder); + gst_bin_add (GST_BIN (video_bin), video_thread); + gst_bin_add (GST_BIN (video_thread), v_queue); + gst_bin_add (GST_BIN (video_thread), videosink); + + gst_element_set_state (video_bin, GST_STATE_READY); + + setup_dynamic_connection (demux, "video_00", gst_element_get_pad (v_decoder, "sink"), video_bin); + + seekable = gst_element_get_pad (v_queue, "src"); + seekables = g_list_prepend (seekables, seekable); + rate_pads = g_list_prepend (rate_pads, seekable); + rate_pads = g_list_prepend (rate_pads, gst_element_get_pad (v_decoder, "sink")); + + return pipeline; +} + +static GstElement* +make_mpeg_pipeline (const gchar *location) +{ + GstElement *pipeline, *audio_bin, *video_bin; + GstElement *src, *demux, *a_decoder, *v_decoder, *audiosink, *videosink; + GstElement *a_queue, *audio_thread, *v_queue, *video_thread; + GstPad *seekable; + + pipeline = gst_pipeline_new ("app"); + + src = gst_element_factory_make ("filesrc", "src"); + g_object_set (G_OBJECT (src), "location", location, NULL); + + demux = gst_element_factory_make ("mpegdemux", "demux"); + g_object_set (G_OBJECT (demux), "sync", FALSE, NULL); + + gst_bin_add (GST_BIN (pipeline), src); + gst_bin_add (GST_BIN (pipeline), demux); + gst_element_connect (src, demux); + + audio_bin = gst_bin_new ("a_decoder_bin"); + a_decoder = gst_element_factory_make ("mad", "a_dec"); + audio_thread = gst_thread_new ("a_decoder_thread"); + a_queue = gst_element_factory_make ("queue", "a_queue"); + audiosink = gst_element_factory_make ("osssink", "a_sink"); + g_object_set (G_OBJECT (audiosink), "fragment", 0x00180008, NULL); + gst_element_connect (a_decoder, a_queue); + gst_element_connect (a_queue, audiosink); + gst_bin_add (GST_BIN (audio_bin), a_decoder); + gst_bin_add (GST_BIN (audio_bin), audio_thread); + gst_bin_add (GST_BIN (audio_thread), a_queue); + gst_bin_add (GST_BIN (audio_thread), audiosink); + + setup_dynamic_connection (demux, "audio_00", gst_element_get_pad (a_decoder, "sink"), audio_bin); + + seekable = gst_element_get_pad (a_queue, "src"); + seekables = g_list_prepend (seekables, seekable); + rate_pads = g_list_prepend (rate_pads, seekable); + rate_pads = g_list_prepend (rate_pads, gst_element_get_pad (a_decoder, "sink")); + + video_bin = gst_bin_new ("v_decoder_bin"); + v_decoder = gst_element_factory_make ("mpeg2dec", "v_dec"); + video_thread = gst_thread_new ("v_decoder_thread"); + v_queue = gst_element_factory_make ("queue", "v_queue"); + videosink = gst_element_factory_make ("xvideosink", "v_sink"); + gst_element_connect (v_decoder, v_queue); + gst_element_connect (v_queue, videosink); + gst_bin_add (GST_BIN (video_bin), v_decoder); + gst_bin_add (GST_BIN (video_bin), video_thread); + gst_bin_add (GST_BIN (video_thread), v_queue); + gst_bin_add (GST_BIN (video_thread), videosink); + + setup_dynamic_connection (demux, "video_00", gst_element_get_pad (v_decoder, "sink"), video_bin); + + seekable = gst_element_get_pad (v_queue, "src"); + seekables = g_list_prepend (seekables, seekable); + rate_pads = g_list_prepend (rate_pads, seekable); + rate_pads = g_list_prepend (rate_pads, gst_element_get_pad (v_decoder, "sink")); + + return pipeline; +} + +static gchar* +format_value (GtkScale *scale, + gdouble value) +{ + gint real = value * duration / 100; + gint seconds = (gint) real/1000000; + gint subseconds = (gint) real/10000; + + return g_strdup_printf ("%02d:%02d:%02d", + seconds/60, + seconds%60, + subseconds%100); +} + +typedef struct +{ + const gchar *name; + const GstFormat format; +} seek_format; + +static seek_format seek_formats[] = +{ + { "tim", GST_FORMAT_TIME }, + { "byt", GST_FORMAT_BYTES }, + { "smp", GST_FORMAT_SAMPLES }, + { "frm", GST_FORMAT_FRAMES }, + { "fld", GST_FORMAT_FIELDS }, + { "buf", GST_FORMAT_BUFFERS }, + { "def", GST_FORMAT_DEFAULT }, + { NULL, 0 }, +}; + +G_GNUC_UNUSED static void +query_rates (void) +{ + GList *walk = rate_pads; + + while (walk) { + GstPad *pad = GST_PAD (walk->data); + gint i = 0; + + g_print ("rate/sec %8.8s: ", GST_PAD_NAME (pad)); + while (seek_formats[i].name) { + gint64 value; + GstFormat format; + + format = seek_formats[i].format; + + if (gst_pad_convert (pad, GST_FORMAT_TIME, GST_SECOND, + &format, &value)) + { + g_print ("%s %10lld | ", seek_formats[i].name, value); + } + else { + g_print ("%s %10.10s | ", seek_formats[i].name, "*NA*"); + } + + i++; + } + g_print (" %s:%s\n", GST_DEBUG_PAD_NAME (pad)); + + walk = g_list_next (walk); + } +} + +G_GNUC_UNUSED static void +query_durations (GstPad *pad) +{ + gint i = 0; + + g_print ("durations %8.8s: ", GST_PAD_NAME (pad)); + while (seek_formats[i].name) { + gboolean res; + gint64 value; + GstFormat format; + + format = seek_formats[i].format; + res = gst_pad_query (pad, GST_PAD_QUERY_TOTAL, &format, &value); + if (res) { + g_print ("%s %10lld | ", seek_formats[i].name, value); + if (seek_formats[i].format == GST_FORMAT_TIME) + duration = value; + } + else { + g_print ("%s %10.10s | ", seek_formats[i].name, "*NA*"); + } + i++; + } + g_print (" %s:%s\n", GST_DEBUG_PAD_NAME (pad)); +} + +G_GNUC_UNUSED static void +query_positions (GstPad *pad) +{ + gint i = 0; + + g_print ("positions %8.8s: ", GST_PAD_NAME (pad)); + while (seek_formats[i].name) { + gboolean res; + gint64 value; + GstFormat format; + + format = seek_formats[i].format; + res = gst_pad_query (pad, GST_PAD_QUERY_POSITION, &format, &value); + if (res) { + g_print ("%s %10lld | ", seek_formats[i].name, value); + if (seek_formats[i].format == GST_FORMAT_TIME) + position = value; + } + else { + g_print ("%s %10.10s | ", seek_formats[i].name, "*NA*"); + } + i++; + } + g_print (" %s:%s\n", GST_DEBUG_PAD_NAME (pad)); +} + +static gboolean +update_scale (gpointer data) +{ + GList *walk = seekables; + GstClock *clock; + + clock = gst_bin_get_clock (GST_BIN (pipeline)); + + g_print ("clock: %10llu\n", gst_clock_get_time (clock)); + + while (walk) { + GstPad *pad = GST_PAD (walk->data); + + query_durations (pad); + query_positions (pad); + + walk = g_list_next (walk); + } + query_rates (); + + if (duration > 0) { + gtk_adjustment_set_value (adjustment, position * 100.0 / duration); + } + + return TRUE; +} + +static gboolean +iterate (gpointer data) +{ + gboolean res; + + res = gst_bin_iterate (GST_BIN (data)); + if (!res) { + gtk_timeout_remove (update_id); + g_print ("stopping iterations\n"); + } + return res; +} + +static gboolean +start_seek (GtkWidget *widget, GdkEventButton *event, gpointer user_data) +{ + gst_element_set_state (pipeline, GST_STATE_PAUSED); + gtk_timeout_remove (update_id); + + return FALSE; +} + +static gboolean +stop_seek (GtkWidget *widget, GdkEventButton *event, gpointer user_data) +{ + gint64 real = gtk_range_get_value (GTK_RANGE (widget)) * duration / 100; + gboolean res; + GstEvent *s_event; + GList *walk = seekables; + + while (walk) { + GstPad *seekable = GST_PAD (walk->data); + + g_print ("seek to %lld on pad %s:%s\n", real, GST_DEBUG_PAD_NAME (seekable)); + s_event = gst_event_new_seek (GST_FORMAT_TIME | + GST_SEEK_METHOD_SET | + GST_SEEK_FLAG_FLUSH, real); + + res = gst_pad_send_event (seekable, s_event); + gst_event_free (s_event); + + walk = g_list_next (walk); + } + + gst_element_set_state (pipeline, GST_STATE_PLAYING); + gtk_idle_add ((GtkFunction) iterate, pipeline); + update_id = gtk_timeout_add (UPDATE_INTERVAL, (GtkFunction) update_scale, pipeline); + + return FALSE; +} + +static void +play_cb (GtkButton * button, gpointer data) +{ + gst_element_set_state (pipeline, GST_STATE_PLAYING); + gtk_idle_add ((GtkFunction) iterate, pipeline); + update_id = gtk_timeout_add (UPDATE_INTERVAL, (GtkFunction) update_scale, pipeline); +} + +static void +pause_cb (GtkButton * button, gpointer data) +{ + gst_element_set_state (pipeline, GST_STATE_PAUSED); + gtk_timeout_remove (update_id); +} + +static void +stop_cb (GtkButton * button, gpointer data) +{ + gst_element_set_state (pipeline, GST_STATE_READY); + gtk_timeout_remove (update_id); +} + +int +main (int argc, char **argv) +{ + GtkWidget *window, *hbox, *vbox, + *play_button, *pause_button, *stop_button, + *hscale; + + gst_init (&argc, &argv); + gtk_init (&argc, &argv); + + if (argc != 3) { + g_print ("usage: %s \n", argv[0]); + exit (-1); + } + + if (atoi (argv[1]) == 0) + pipeline = make_mp3_pipeline (argv[2]); + else if (atoi (argv[1]) == 1) + pipeline = make_avi_pipeline (argv[2]); + else if (atoi (argv[1]) == 2) + pipeline = make_mpeg_pipeline (argv[2]); + else + pipeline = make_parse_pipeline (argv[2]); + + /* initialize gui elements ... */ + window = gtk_window_new (GTK_WINDOW_TOPLEVEL); + hbox = gtk_hbox_new (FALSE, 0); + vbox = gtk_vbox_new (FALSE, 0); + play_button = gtk_button_new_with_label ("play"); + pause_button = gtk_button_new_with_label ("pause"); + stop_button = gtk_button_new_with_label ("stop"); + + adjustment = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.00, 100.0, 0.1, 1.0, 1.0)); + hscale = gtk_hscale_new (adjustment); + gtk_scale_set_digits (GTK_SCALE (hscale), 2); + gtk_range_set_update_policy (GTK_RANGE (hscale), GTK_UPDATE_CONTINUOUS); + + gtk_signal_connect(GTK_OBJECT(hscale), + "button_press_event", G_CALLBACK (start_seek), pipeline); + gtk_signal_connect(GTK_OBJECT(hscale), + "button_release_event", G_CALLBACK (stop_seek), pipeline); + gtk_signal_connect(GTK_OBJECT(hscale), + "format_value", G_CALLBACK (format_value), pipeline); + + /* do the packing stuff ... */ + gtk_window_set_default_size (GTK_WINDOW (window), 96, 96); + gtk_container_add (GTK_CONTAINER (window), vbox); + gtk_container_add (GTK_CONTAINER (vbox), hbox); + gtk_box_pack_start (GTK_BOX (hbox), play_button, FALSE, FALSE, 2); + gtk_box_pack_start (GTK_BOX (hbox), pause_button, FALSE, FALSE, 2); + gtk_box_pack_start (GTK_BOX (hbox), stop_button, FALSE, FALSE, 2); + gtk_box_pack_start (GTK_BOX (vbox), hscale, TRUE, TRUE, 2); + + /* connect things ... */ + g_signal_connect (G_OBJECT (play_button), "clicked", G_CALLBACK (play_cb), pipeline); + g_signal_connect (G_OBJECT (pause_button), "clicked", G_CALLBACK (pause_cb), pipeline); + g_signal_connect (G_OBJECT (stop_button), "clicked", G_CALLBACK (stop_cb), pipeline); + g_signal_connect (G_OBJECT (window), "delete_event", gtk_main_quit, NULL); + + /* show the gui. */ + gtk_widget_show_all (window); + + gtk_main (); + + //g_mem_chunk_info(); + + return 0; +} -- cgit v1.2.1