+++ /dev/null
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-#include <stdlib.h>
-#include <glib.h>
-#include <gtk/gtk.h>
-#include <gst/gst.h>
-
-#define NUM_BEATS 12
-#define TICK_RATE(x) (x * 1e-6)
-
-GtkWidget *window, *vbox, *beat_box, *button_box;
-GtkWidget *play_button, *clear_button, *reset_button, *quit_button;
-GtkWidget **beat_button;
-GtkWidget *speed_scale;
-GtkObject *speed_adj;
-GstElement *src, *dec, *pod, *sink, *pipeline;
-GstClock *element_clock;
-guint32 *beats;
-
-void
-played (GstElement * pod, gpointer data)
-{
- gint i;
-
- g_print ("Played beat at %02u, beats are ",
- (guint) (gst_clock_get_time (element_clock) / GST_SECOND *
- (GTK_ADJUSTMENT (speed_adj))->value) % NUM_BEATS);
-
- for (i = 0; i <= NUM_BEATS / 32; i++)
- g_print ("%08x ", beats[i]);
-
- g_print ("\n");
-}
-
-void
-play (GtkButton * button, gpointer data)
-{
- g_signal_emit_by_name (G_OBJECT (pod), "play", NULL, NULL);
-}
-
-void
-clear (GtkButton * button, gpointer data)
-{
- g_signal_emit_by_name (G_OBJECT (pod), "clear", NULL, NULL);
-}
-
-void
-reset (GtkButton * button, gpointer data)
-{
- guint i;
-
- g_signal_emit_by_name (G_OBJECT (pod), "reset", NULL, NULL);
- for (i = 0; i < NUM_BEATS; i++)
- gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (beat_button[i]), 0);
-}
-
-void
-beat (GtkToggleButton * button, gpointer data)
-{
- guint b = GPOINTER_TO_UINT (data);
-
- if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (button)))
- beats[b / 32] |= 1 << (b % 32);
- else
- beats[b / 32] &= ~(1 << (b % 32));
-}
-
-void
-speed (GtkAdjustment * adjustment, gpointer data)
-{
- /*g_signal_stop_emission_by_name(G_OBJECT(pod), "deep-notify"); */
- g_object_set (G_OBJECT (pod), "tick-rate", TICK_RATE (adjustment->value),
- NULL);
- /*gst_clock_set_speed(element_clock, adjustment->value); */
-}
-
-void
-setup_pipeline (gchar * filename)
-{
- src = gst_element_factory_make ("filesrc", "source");
- dec = gst_element_factory_make ("vorbisfile", "decoder");
- pod = gst_element_factory_make ("playondemand", "sequencer");
- sink = gst_element_factory_make (DEFAULT_AUDIOSINK, "sink");
-
- g_object_set (G_OBJECT (src), "location", filename, NULL);
- g_object_set (G_OBJECT (sink), "period-count", 64, "period-size", 512, NULL);
- g_object_set (G_OBJECT (pod), "total-ticks", NUM_BEATS,
- "tick-rate", 1.0e-6, "max-plays", NUM_BEATS * 2, NULL);
-
- g_object_get (G_OBJECT (pod), "ticks", &beats, NULL);
-
- pipeline = gst_pipeline_new ("app");
-
- gst_bin_add_many (GST_BIN (pipeline), src, dec, pod, sink, NULL);
- gst_element_link_many (src, dec, pod, sink, NULL);
-
- element_clock = gst_element_get_clock (GST_ELEMENT (sink));
- gst_element_set_clock (GST_ELEMENT (pod), element_clock);
-}
-
-void
-setup_gui (void)
-{
- guint i;
-
- beat_button = g_new (GtkWidget *, NUM_BEATS);
-
- /* initialize gui elements ... */
- window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
- gtk_container_set_border_width (GTK_CONTAINER (window), 12);
-
- vbox = gtk_vbox_new (TRUE, 0);
- gtk_box_set_spacing (GTK_BOX (vbox), 12);
-
- beat_box = gtk_hbox_new (TRUE, 0);
- button_box = gtk_hbox_new (TRUE, 0);
-
- play_button = gtk_button_new_with_label ("Play");
- clear_button = gtk_button_new_with_label ("Reset Sound");
- reset_button = gtk_button_new_with_label ("Reset All");
- quit_button = gtk_button_new_with_label ("Quit");
-
- for (i = 0; i < NUM_BEATS; i++)
- beat_button[i] =
- gtk_toggle_button_new_with_label (g_strdup_printf ("%2d", i + 1));
-
- speed_adj = gtk_adjustment_new (1, 0.0, 10.0, 0.1, 1.0, 0.0);
- speed_scale = gtk_hscale_new (GTK_ADJUSTMENT (speed_adj));
- gtk_scale_set_digits (GTK_SCALE (speed_scale), 4);
- gtk_range_set_update_policy (GTK_RANGE (speed_scale),
- GTK_UPDATE_DISCONTINUOUS);
-
- /* do the packing stuff ... */
- gtk_window_set_default_size (GTK_WINDOW (window), 96, 96);
- gtk_container_add (GTK_CONTAINER (window), vbox);
-
- gtk_box_pack_start (GTK_BOX (button_box), play_button, TRUE, TRUE, 2);
- gtk_box_pack_start (GTK_BOX (button_box), clear_button, TRUE, TRUE, 2);
- gtk_box_pack_start (GTK_BOX (button_box), reset_button, TRUE, TRUE, 2);
- gtk_box_pack_start (GTK_BOX (button_box), quit_button, TRUE, TRUE, 2);
-
- for (i = 0; i < NUM_BEATS; i++)
- gtk_box_pack_start (GTK_BOX (beat_box), beat_button[i], TRUE, TRUE, 2);
-
- gtk_box_pack_start (GTK_BOX (vbox), button_box, TRUE, FALSE, 2);
- gtk_box_pack_start (GTK_BOX (vbox), beat_box, TRUE, FALSE, 2);
- gtk_box_pack_start (GTK_BOX (vbox), speed_scale, TRUE, FALSE, 2);
-
- /* connect things ... */
- g_signal_connect (G_OBJECT (play_button), "clicked", G_CALLBACK (play), NULL);
- g_signal_connect (G_OBJECT (clear_button), "clicked", G_CALLBACK (clear),
- NULL);
- g_signal_connect (G_OBJECT (reset_button), "clicked", G_CALLBACK (reset),
- NULL);
- g_signal_connect (G_OBJECT (quit_button), "clicked", gtk_main_quit, NULL);
- g_signal_connect (G_OBJECT (pod), "played", G_CALLBACK (played), NULL);
- g_signal_connect (G_OBJECT (speed_adj), "value_changed", G_CALLBACK (speed),
- NULL);
- for (i = 0; i < NUM_BEATS; i++)
- g_signal_connect (G_OBJECT (beat_button[i]), "toggled", G_CALLBACK (beat),
- GUINT_TO_POINTER (i));
-
- /* show the gui. */
- gtk_widget_show_all (window);
-
- gtk_idle_add ((GtkFunction) gst_bin_iterate, pipeline);
-}
-
-int
-main (int argc, char **argv)
-{
- gst_init (&argc, &argv);
- gtk_init (&argc, &argv);
-
- if (argc != 2) {
- g_print ("usage: %s <mp3-filename>\n", argv[0]);
- exit (-1);
- }
-
- setup_pipeline (argv[1]);
- gst_element_set_state (pipeline, GST_STATE_PLAYING);
- setup_gui ();
- gtk_main ();
- g_free (beat_button);
- return 0;
-}
+++ /dev/null
-/* GStreamer
- * Copyright (C) 1999-2001 Erik Walthinsen <omega@cse.ogi.edu>
- *
- * 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 <string.h>
-#include <gst/gst.h>
-#include <gst/audio/audio.h>
-
-#include "gstplayondemand.h"
-
-/* in these files, a 'tick' is a discrete unit of time, usually around the 1ms
- * range. a tick is not divisible into smaller units of time. 1ms is probably
- * way beyond what a real computer can actually keep track of, but hey ... */
-
-/* some default values */
-#define GST_POD_MAX_PLAYS 100 /* maximum simultaneous plays */
-#define GST_POD_BUFFER_TIME 5.0 /* buffer length in seconds */
-#define GST_POD_TICK_RATE 1e-6 /* ticks per second */
-
-/* buffer pool fallback values ... use if no buffer pool is available */
-#define GST_POD_BUFPOOL_SIZE 4096
-#define GST_POD_BUFPOOL_NUM 6
-
-static GstStaticPadTemplate play_on_demand_sink_template =
- GST_STATIC_PAD_TEMPLATE ("sink",
- GST_PAD_SINK,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS (GST_AUDIO_INT_PAD_TEMPLATE_CAPS "; "
- GST_AUDIO_FLOAT_STANDARD_PAD_TEMPLATE_CAPS)
- );
-
-static GstStaticPadTemplate play_on_demand_src_template =
- GST_STATIC_PAD_TEMPLATE ("src",
- GST_PAD_SRC,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS (GST_AUDIO_INT_PAD_TEMPLATE_CAPS "; "
- GST_AUDIO_FLOAT_STANDARD_PAD_TEMPLATE_CAPS)
- );
-
-
-/* GObject functionality */
-static void play_on_demand_class_init (GstPlayOnDemandClass * klass);
-static void play_on_demand_base_init (GstPlayOnDemandClass * klass);
-static void play_on_demand_init (GstPlayOnDemand * filter);
-static void play_on_demand_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec);
-static void play_on_demand_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec);
-static void play_on_demand_finalize (GObject * object);
-
-/* GStreamer functionality */
-static GstPadLinkReturn play_on_demand_pad_link (GstPad * pad,
- const GstCaps * caps);
-static void play_on_demand_loop (GstElement * elem);
-static void play_on_demand_set_clock (GstElement * elem, GstClock * clock);
-
-/* signal handlers */
-static void play_on_demand_play_handler (GstElement * elem);
-static void play_on_demand_clear_handler (GstElement * elem);
-static void play_on_demand_reset_handler (GstElement * elem);
-
-/* utility functions */
-static void play_on_demand_add_play_pointer (GstPlayOnDemand * filter,
- guint pos);
-static void play_on_demand_resize_buffer (GstPlayOnDemand * filter);
-
-GType
-gst_play_on_demand_get_type (void)
-{
- static GType play_on_demand_type = 0;
-
- if (!play_on_demand_type) {
- static const GTypeInfo play_on_demand_info = {
- sizeof (GstPlayOnDemandClass),
- (GBaseInitFunc) play_on_demand_base_init,
- NULL,
- (GClassInitFunc) play_on_demand_class_init,
- NULL,
- NULL,
- sizeof (GstPlayOnDemand),
- 0,
- (GInstanceInitFunc) play_on_demand_init,
- };
-
- play_on_demand_type = g_type_register_static (GST_TYPE_ELEMENT,
- "GstPlayOnDemand", &play_on_demand_info, 0);
- }
- return play_on_demand_type;
-}
-
-
-/* signals and properties */
-enum
-{
- /* add signals here */
- PLAYED_SIGNAL,
- STOPPED_SIGNAL,
- PLAY_SIGNAL,
- CLEAR_SIGNAL,
- RESET_SIGNAL,
- LAST_SIGNAL
-};
-
-enum
-{
- PROP_0,
- PROP_MUTE,
- PROP_BUFFER_TIME,
- PROP_MAX_PLAYS,
- PROP_TICK_RATE,
- PROP_TOTAL_TICKS,
- PROP_TICKS
-};
-
-static guint gst_pod_filter_signals[LAST_SIGNAL] = { 0 };
-
-static GstElementClass *parent_class = NULL;
-
-static void
-play_on_demand_base_init (GstPlayOnDemandClass * klass)
-{
- GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
-
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&play_on_demand_src_template));
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&play_on_demand_sink_template));
- gst_element_class_set_details_simple (element_class, "Play On Demand",
- "Filter/Editor/Audio",
- "Schedule a stream to play at specific times, or when a signal is received",
- "Leif Morgan Johnson <leif@ambient.2y.net>");
-}
-
-static void
-play_on_demand_class_init (GstPlayOnDemandClass * klass)
-{
- GObjectClass *gobject_class;
- GstElementClass *gstelement_class;
-
- gobject_class = (GObjectClass *) klass;
- gstelement_class = (GstElementClass *) klass;
-
- gst_pod_filter_signals[PLAYED_SIGNAL] =
- g_signal_new ("played", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (GstPlayOnDemandClass, played),
- NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
-
- gst_pod_filter_signals[STOPPED_SIGNAL] =
- g_signal_new ("stopped", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (GstPlayOnDemandClass, stopped),
- NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
-
- gst_pod_filter_signals[PLAY_SIGNAL] =
- g_signal_new ("play", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (GstPlayOnDemandClass, play),
- NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
-
- gst_pod_filter_signals[CLEAR_SIGNAL] =
- g_signal_new ("clear", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (GstPlayOnDemandClass, clear),
- NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
-
- gst_pod_filter_signals[RESET_SIGNAL] =
- g_signal_new ("reset", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (GstPlayOnDemandClass, reset),
- NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
-
- klass->play = play_on_demand_play_handler;
- klass->clear = play_on_demand_clear_handler;
- klass->reset = play_on_demand_reset_handler;
-
- parent_class = g_type_class_peek_parent (klass);
-
- gobject_class->set_property = play_on_demand_set_property;
- gobject_class->get_property = play_on_demand_get_property;
- gobject_class->finalize = play_on_demand_finalize;
-
- gstelement_class->set_clock = play_on_demand_set_clock;
-
- g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_MUTE,
- g_param_spec_boolean ("mute", "Silence output", "Do not output any sound",
- FALSE,
- G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
-
- g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_BUFFER_TIME,
- g_param_spec_float ("buffer-time", "Buffer length in seconds",
- "Number of seconds of audio the buffer holds", 0.0, G_MAXFLOAT,
- GST_POD_BUFFER_TIME,
- G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
-
- g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_MAX_PLAYS,
- g_param_spec_uint ("max-plays", "Maximum simultaneous playbacks",
- "Maximum allowed number of simultaneous plays from the buffer", 1,
- G_MAXUINT, GST_POD_MAX_PLAYS,
- G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
-
- g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_TICK_RATE,
- g_param_spec_float ("tick-rate", "Tick rate (ticks/second)",
- "The rate of musical ticks, the smallest time unit in a song", 0,
- G_MAXFLOAT, GST_POD_TICK_RATE,
- G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
-
- g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_TOTAL_TICKS,
- g_param_spec_uint ("total-ticks", "Total number of ticks",
- "Total number of ticks in the tick array", 1, G_MAXUINT, 1,
- G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
-
- g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_TICKS,
- g_param_spec_pointer ("ticks", "Ticks to play sample on",
- "An array of ticks (musical times) at which to play the sample",
- G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-}
-
-static void
-play_on_demand_init (GstPlayOnDemand * filter)
-{
- filter->srcpad =
- gst_pad_new_from_static_template (&play_on_demand_src_template, "src");
- filter->sinkpad =
- gst_pad_new_from_static_template (&play_on_demand_sink_template, "sink");
-
- gst_pad_set_link_function (filter->sinkpad, play_on_demand_pad_link);
-
- gst_element_add_pad (GST_ELEMENT (filter), filter->sinkpad);
- gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad);
-
- gst_element_set_loop_function (GST_ELEMENT (filter), play_on_demand_loop);
-
- filter->clock = NULL;
-
- filter->rate = 0;
-
- filter->ticks = g_new (guint32, filter->total_ticks / 32 + 1);
- filter->plays = g_new (guint, filter->max_plays);
-
- play_on_demand_resize_buffer (filter);
- play_on_demand_reset_handler (GST_ELEMENT (filter));
-}
-
-static void
-play_on_demand_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec)
-{
- GstPlayOnDemand *filter;
- register guint i;
- guint new_size, min_size, *new_plays;
- guint *new_ticks;
-
- g_return_if_fail (GST_IS_PLAYONDEMAND (object));
- filter = GST_PLAYONDEMAND (object);
-
- switch (prop_id) {
- case PROP_MUTE:
- filter->mute = g_value_get_boolean (value);
- break;
- case PROP_BUFFER_TIME:
- filter->buffer_time = g_value_get_float (value);
- play_on_demand_resize_buffer (filter);
-
- /* clear out now-invalid play pointers */
- for (i = 0; i < filter->max_plays; i++)
- filter->plays[i] = G_MAXUINT;
-
- break;
- case PROP_MAX_PLAYS:
- new_size = g_value_get_uint (value);
- min_size = (new_size < filter->max_plays) ? new_size : filter->max_plays;
-
- new_plays = g_new (guint, new_size);
- for (i = 0; i < min_size; i++)
- new_plays[i] = filter->plays[i];
- for (i = min_size; i < new_size; i++)
- new_plays[i] = G_MAXUINT;
-
- g_free (filter->plays);
- filter->plays = new_plays;
- filter->max_plays = new_size;
-
- break;
- case PROP_TICK_RATE:
- filter->tick_rate = g_value_get_float (value);
- break;
- case PROP_TOTAL_TICKS:
- new_size = g_value_get_uint (value);
- min_size =
- (new_size < filter->total_ticks) ? new_size : filter->total_ticks;
-
- new_ticks = g_new (guint32, new_size / 32 + 1);
- for (i = 0; i <= min_size / 32; i++)
- new_ticks[i] = filter->ticks[i];
- for (i = min_size / 32 + 1; i <= new_size / 32; i++)
- new_ticks[i] = 0;
-
- g_free (filter->ticks);
- filter->ticks = new_ticks;
- filter->total_ticks = new_size;
-
- break;
- case PROP_TICKS:
- new_ticks = (guint *) g_value_get_pointer (value);
- if (new_ticks) {
- g_free (filter->ticks);
- filter->ticks = new_ticks;
- }
- break;
- default:
- break;
- }
-}
-
-static void
-play_on_demand_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec)
-{
- GstPlayOnDemand *filter;
-
- g_return_if_fail (GST_IS_PLAYONDEMAND (object));
- filter = GST_PLAYONDEMAND (object);
-
- switch (prop_id) {
- case PROP_MUTE:
- g_value_set_boolean (value, filter->mute);
- break;
- case PROP_BUFFER_TIME:
- g_value_set_float (value, filter->buffer_time);
- break;
- case PROP_MAX_PLAYS:
- g_value_set_uint (value, filter->max_plays);
- break;
- case PROP_TICK_RATE:
- g_value_set_float (value, filter->tick_rate);
- break;
- case PROP_TOTAL_TICKS:
- g_value_set_uint (value, filter->total_ticks);
- break;
- case PROP_TICKS:
- g_value_set_pointer (value, (gpointer) filter->ticks);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-play_on_demand_finalize (GObject * object)
-{
- GstPlayOnDemand *filter = GST_PLAYONDEMAND (object);
-
- g_free (filter->ticks);
- g_free (filter->plays);
- g_free (filter->buffer);
-
- G_OBJECT_CLASS (parent_class)->finalize (object);
-}
-
-static GstPadLinkReturn
-play_on_demand_pad_link (GstPad * pad, const GstCaps * caps)
-{
- const gchar *mimetype;
- GstPlayOnDemand *filter;
- GstStructure *structure;
-
- g_return_val_if_fail (caps != NULL, GST_PAD_LINK_DELAYED);
- g_return_val_if_fail (pad != NULL, GST_PAD_LINK_DELAYED);
-
- filter = GST_PLAYONDEMAND (GST_PAD_PARENT (pad));
-
- structure = gst_caps_get_structure (caps, 0);
-
- mimetype = gst_structure_get_name (structure);
- gst_structure_get_int (structure, "rate", &filter->rate);
- gst_structure_get_int (structure, "channels", &filter->channels);
-
- if (strcmp (mimetype, "audio/x-raw-int") == 0) {
- filter->format = GST_PLAYONDEMAND_FORMAT_INT;
- gst_structure_get_int (structure, "width", &filter->width);
- } else if (strcmp (mimetype, "audio/x-raw-float") == 0) {
- filter->format = GST_PLAYONDEMAND_FORMAT_FLOAT;
- }
-
- play_on_demand_resize_buffer (filter);
-
- return gst_pad_try_set_caps (filter->srcpad, caps);
-}
-
-inline static void
-play_on_demand_add_play_pointer (GstPlayOnDemand * filter, guint pos)
-{
- register guint i;
-
- if (filter->rate && ((filter->buffer_time * filter->rate) > pos)) {
- for (i = 0; i < filter->max_plays; i++) {
- if (filter->plays[i] == G_MAXUINT) {
- filter->plays[i] = pos;
- /* emit a signal to indicate a sample being played */
- g_signal_emit (filter, gst_pod_filter_signals[PLAYED_SIGNAL], 0);
- break;
- }
- }
- }
-}
-
-static void
-play_on_demand_loop (GstElement * elem)
-{
- GstPlayOnDemand *filter = GST_PLAYONDEMAND (elem);
- guint num_in, num_out, num_filter;
- GstData *in = NULL;
- GstBuffer *out = NULL;
- static guint last_tick = 0;
-
- g_return_if_fail (filter != NULL);
- g_return_if_fail (GST_IS_PLAYONDEMAND (filter));
-
- in = (in == NULL && !filter->eos) ? gst_pad_pull (filter->sinkpad) : NULL;
-
- if (filter->format == GST_PLAYONDEMAND_FORMAT_INT) {
- if (filter->width == 16) {
- gint16 min = 0xffff;
- gint16 max = 0x7fff;
- gint16 zero = 0;
-
-#define _TYPE_ gint16
-#include "filter.func"
-#undef _TYPE_
- } else if (filter->width == 8) {
- gint8 min = 0xff;
- gint8 max = 0x7f;
- gint8 zero = 0;
-
-#define _TYPE_ gint8
-#include "filter.func"
-#undef _TYPE_
- }
- } else if (filter->format == GST_PLAYONDEMAND_FORMAT_FLOAT) {
- gfloat min = -1.0;
- gfloat max = 1.0;
- gfloat zero = 0.0;
-
-#define _TYPE_ gfloat
-#include "filter.func"
-#undef _TYPE_
- }
-}
-
-static void
-play_on_demand_set_clock (GstElement * elem, GstClock * clock)
-{
- GstPlayOnDemand *filter;
-
- g_return_if_fail (elem != NULL);
- g_return_if_fail (GST_IS_PLAYONDEMAND (elem));
- filter = GST_PLAYONDEMAND (elem);
-
- filter->clock = clock;
-}
-
-static void
-play_on_demand_play_handler (GstElement * elem)
-{
- GstPlayOnDemand *filter;
-
- g_return_if_fail (elem != NULL);
- g_return_if_fail (GST_IS_PLAYONDEMAND (elem));
- filter = GST_PLAYONDEMAND (elem);
-
- play_on_demand_add_play_pointer (filter, 0);
-}
-
-static void
-play_on_demand_clear_handler (GstElement * elem)
-{
- GstPlayOnDemand *filter;
- register guint i;
-
- g_return_if_fail (elem != NULL);
- g_return_if_fail (GST_IS_PLAYONDEMAND (elem));
- filter = GST_PLAYONDEMAND (elem);
-
- filter->write = 0;
- filter->eos = FALSE;
-
- for (i = 0; i < filter->max_plays; i++)
- filter->plays[i] = G_MAXUINT;
- for (i = 0; i < filter->buffer_bytes; i++)
- filter->buffer[i] = (gchar) 0;
-}
-
-static void
-play_on_demand_reset_handler (GstElement * elem)
-{
- GstPlayOnDemand *filter;
- register guint i;
-
- play_on_demand_clear_handler (elem);
-
- g_return_if_fail (elem != NULL);
- g_return_if_fail (GST_IS_PLAYONDEMAND (elem));
- filter = GST_PLAYONDEMAND (elem);
-
- for (i = 0; i <= filter->total_ticks / 32; i++)
- filter->ticks[i] = 0;
-}
-
-static void
-play_on_demand_resize_buffer (GstPlayOnDemand * filter)
-{
- register guint i;
- guint new_size, min_size;
- gchar *new_buffer;
-
- /* use a default sample rate of 44100, 1 channel, 1 byte per sample if caps
- haven't been set yet */
- new_size = (guint) filter->buffer_time;
- new_size *= (filter->rate) ? filter->rate : 44100;
- new_size *= (filter->channels) ? filter->channels : 1;
-
- if (filter->format && filter->format == GST_PLAYONDEMAND_FORMAT_FLOAT)
- new_size *= sizeof (gfloat);
- else
- new_size *= (filter->width) ? filter->width / 8 : 1;
-
- min_size =
- (new_size < filter->buffer_bytes) ? new_size : filter->buffer_bytes;
-
- new_buffer = g_new (gchar, new_size);
- for (i = 0; i < min_size; i++)
- new_buffer[i] = filter->buffer[i];
- for (i = min_size; i < new_size; i++)
- new_buffer[i] = (gchar) 0;
-
- g_free (filter->buffer);
- filter->buffer = new_buffer;
- filter->buffer_bytes = new_size;
-}
-
-static gboolean
-plugin_init (GstPlugin * plugin)
-{
- return gst_element_register (plugin, "playondemand",
- GST_RANK_NONE, GST_TYPE_PLAYONDEMAND);
-}
-
-GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
- GST_VERSION_MINOR,
- "playondemand",
- "Plays a stream at specific times, or when it receives a signal",
- plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
projects / platform / upstream / gst-plugins-bad.git / commitdiff