From 56fb211778a9fb342eea922c901cee6d74c02cad Mon Sep 17 00:00:00 2001 From: Wim Taymans Date: Sat, 8 Jun 2002 14:57:15 +0000 Subject: Added wav test to seek.c Original commit message from CVS: Added wav test to seek.c Added an example of element query/seek using spider --- examples/seeking/Makefile.am | 2 +- examples/seeking/seek.c | 33 ++++ examples/seeking/spider_seek.c | 337 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 371 insertions(+), 1 deletion(-) create mode 100644 examples/seeking/spider_seek.c (limited to 'examples') diff --git a/examples/seeking/Makefile.am b/examples/seeking/Makefile.am index ec73f0e2..ad041480 100644 --- a/examples/seeking/Makefile.am +++ b/examples/seeking/Makefile.am @@ -1,4 +1,4 @@ -examples = seek +examples = seek spider_seek noinst_PROGRAMS = $(examples) diff --git a/examples/seeking/seek.c b/examples/seeking/seek.c index ce22e845..575fac1a 100644 --- a/examples/seeking/seek.c +++ b/examples/seeking/seek.c @@ -57,6 +57,37 @@ setup_dynamic_connection (GstElement *element, const gchar *padname, GstPad *tar g_signal_connect (G_OBJECT (element), "new_pad", G_CALLBACK (dynamic_connect), connect); } +static GstElement* +make_wav_pipeline (const gchar *location) +{ + GstElement *pipeline; + GstElement *src, *decoder, *audiosink; + GstPad *seekable; + + pipeline = gst_pipeline_new ("app"); + + src = gst_element_factory_make (SOURCE, "src"); + decoder = gst_element_factory_make ("wavparse", "decoder"); + audiosink = gst_element_factory_make ("osssink", "sink"); + //g_object_set (G_OBJECT (audiosink), "sync", FALSE, NULL); + + g_object_set (G_OBJECT (src), "location", location, NULL); + + gst_bin_add (GST_BIN (pipeline), src); + gst_bin_add (GST_BIN (pipeline), decoder); + gst_bin_add (GST_BIN (pipeline), audiosink); + + gst_element_connect (src, decoder); + gst_element_connect (decoder, audiosink); + + seekable = gst_element_get_pad (decoder, "src"); + seekable_pads = g_list_prepend (seekable_pads, 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_flac_pipeline (const gchar *location) { @@ -625,6 +656,8 @@ main (int argc, char **argv) pipeline = make_sid_pipeline (argv[2]); else if (atoi (argv[1]) == 6) pipeline = make_flac_pipeline (argv[2]); + else if (atoi (argv[1]) == 7) + pipeline = make_wav_pipeline (argv[2]); /* initialize gui elements ... */ window = gtk_window_new (GTK_WINDOW_TOPLEVEL); diff --git a/examples/seeking/spider_seek.c b/examples/seeking/spider_seek.c new file mode 100644 index 00000000..6287f4c1 --- /dev/null +++ b/examples/seeking/spider_seek.c @@ -0,0 +1,337 @@ +#include +#include +#include +#include + +static GList *rate_pads = NULL; +static GList *seekable_elements = NULL; + +static GstElement *pipeline; +static guint64 duration, position; +static GtkAdjustment *adjustment; + +static guint update_id; + +#define SOURCE "gnomevfssrc" +//#define SOURCE "filesrc" + +#define UPDATE_INTERVAL 500 + +#define THREAD + +static GstElement* +make_spider_pipeline (const gchar *location) +{ + GstElement *pipeline; + GstElement *src, *decoder, *audiosink; + GstElement *seekable; + + pipeline = gst_pipeline_new ("app"); + + src = gst_element_factory_make (SOURCE, "src"); + decoder = gst_element_factory_make ("spider", "decoder"); + audiosink = gst_element_factory_make ("osssink", "sink"); + //g_object_set (G_OBJECT (audiosink), "sync", FALSE, NULL); + + g_object_set (G_OBJECT (src), "location", location, NULL); + + gst_bin_add (GST_BIN (pipeline), src); + gst_bin_add (GST_BIN (pipeline), decoder); + gst_bin_add (GST_BIN (pipeline), audiosink); + + gst_element_connect (src, decoder); + gst_element_connect (decoder, audiosink); + + seekable = audiosink; + seekable_elements = g_list_prepend (seekable_elements, seekable); + rate_pads = g_list_prepend (rate_pads, gst_element_get_pad (audiosink, "sink")); + + return pipeline; +} + +static gchar* +format_value (GtkScale *scale, + gdouble value) +{ + gint64 real; + gint64 seconds; + gint64 subseconds; + + real = value * duration / 100; + seconds = (gint64) real / GST_SECOND; + subseconds = (gint64) real / (GST_SECOND / 100); + + return g_strdup_printf ("%02lld:%02lld:%02lld", + 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 }, + { "unt", GST_FORMAT_UNITS }, + { "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 %13lld | ", seek_formats[i].name, value); + } + else { + g_print ("%s %13.13s | ", 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 (GstElement *element) +{ + gint i = 0; + + g_print ("durations %8.8s: ", GST_ELEMENT_NAME (element)); + while (seek_formats[i].name) { + gboolean res; + gint64 value; + GstFormat format; + + format = seek_formats[i].format; + res = gst_element_query (element, GST_PAD_QUERY_TOTAL, &format, &value); + if (res) { + g_print ("%s %13lld | ", seek_formats[i].name, value); + if (seek_formats[i].format == GST_FORMAT_TIME) + duration = value; + } + else { + g_print ("%s %13.13s | ", seek_formats[i].name, "*NA*"); + } + i++; + } + g_print (" %s\n", GST_ELEMENT_NAME (element)); +} + +G_GNUC_UNUSED static void +query_positions (GstElement *element) +{ + gint i = 0; + + g_print ("positions %8.8s: ", GST_ELEMENT_NAME (element)); + while (seek_formats[i].name) { + gboolean res; + gint64 value; + GstFormat format; + + format = seek_formats[i].format; + res = gst_element_query (element, GST_PAD_QUERY_POSITION, &format, &value); + if (res) { + g_print ("%s %13lld | ", seek_formats[i].name, value); + if (seek_formats[i].format == GST_FORMAT_TIME) + position = value; + } + else { + g_print ("%s %13.13s | ", seek_formats[i].name, "*NA*"); + } + i++; + } + g_print (" %s\n", GST_ELEMENT_NAME (element)); +} + +static gboolean +update_scale (gpointer data) +{ + GList *walk = seekable_elements; + GstClock *clock; + + clock = gst_bin_get_clock (GST_BIN (pipeline)); + + g_print ("clock: %13llu (%s)\n", gst_clock_get_time (clock), gst_object_get_name (GST_OBJECT (clock))); + + while (walk) { + GstElement *element = GST_ELEMENT (walk->data); + + query_durations (element); + query_positions (element); + + 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 = seekable_elements; + + while (walk) { + GstElement *seekable = GST_ELEMENT (walk->data); + + g_print ("seek to %lld on element %s\n", real, GST_ELEMENT_NAME (seekable)); + s_event = gst_event_new_seek (GST_FORMAT_TIME | + GST_SEEK_METHOD_SET | + GST_SEEK_FLAG_FLUSH, real); + + res = gst_element_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) +{ + if (gst_element_get_state (pipeline) != GST_STATE_PLAYING) { + 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) +{ + if (gst_element_get_state (pipeline) != GST_STATE_PAUSED) { + gst_element_set_state (pipeline, GST_STATE_PAUSED); + gtk_timeout_remove (update_id); + } +} + +static void +stop_cb (GtkButton * button, gpointer data) +{ + if (gst_element_get_state (pipeline) != GST_STATE_READY) { + 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 != 2) { + g_print ("usage: %s \n", argv[0]); + exit (-1); + } + + pipeline = make_spider_pipeline (argv[1]); + + /* 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