gstreamer/gst/elements/gstfakesink.c

420 lines
13 KiB
C
Raw Normal View History

/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
*
* gstfakesink.c:
*
* 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 "gstfakesink.h"
GST_DEBUG_CATEGORY (gst_fakesink_debug);
#define GST_CAT_DEFAULT gst_fakesink_debug
GstElementDetails gst_fakesink_details = {
"Fake Sink",
"Sink",
"LGPL",
"Black hole for data",
VERSION,
"Erik Walthinsen <omega@cse.ogi.edu>",
"(C) 1999",
};
/* FakeSink signals and args */
enum {
/* FILL ME */
SIGNAL_HANDOFF,
LAST_SIGNAL
};
enum {
ARG_0,
ARG_STATE_ERROR,
ARG_NUM_SINKS,
ARG_SILENT,
ARG_DUMP,
ARG_SYNC,
ARG_SIGNAL_HANDOFFS,
ARG_LAST_MESSAGE,
};
GST_PAD_TEMPLATE_FACTORY (fakesink_sink_factory,
"sink%d",
GST_PAD_SINK,
GST_PAD_REQUEST,
NULL /* no caps */
);
#define GST_TYPE_FAKESINK_STATE_ERROR (gst_fakesink_state_error_get_type())
static GType
gst_fakesink_state_error_get_type (void)
{
static GType fakesink_state_error_type = 0;
static GEnumValue fakesink_state_error[] = {
{ FAKESINK_STATE_ERROR_NONE, "0", "No state change errors"},
{ FAKESINK_STATE_ERROR_NULL_READY, "1", "Fail state change from NULL to READY"},
{ FAKESINK_STATE_ERROR_READY_PAUSED, "2", "Fail state change from READY to PAUSED"},
{ FAKESINK_STATE_ERROR_PAUSED_PLAYING, "3", "Fail state change from PAUSED to PLAYING"},
{ FAKESINK_STATE_ERROR_PLAYING_PAUSED, "4", "Fail state change from PLAYING to PAUSED"},
{ FAKESINK_STATE_ERROR_PAUSED_READY , "5", "Fail state change from PAUSED to READY"},
{ FAKESINK_STATE_ERROR_READY_NULL , "6", "Fail state change from READY to NULL"},
{0, NULL, NULL},
};
if (!fakesink_state_error_type) {
fakesink_state_error_type = g_enum_register_static ("GstFakeSinkStateError", fakesink_state_error);
}
return fakesink_state_error_type;
}
static void gst_fakesink_class_init (GstFakeSinkClass *klass);
static void gst_fakesink_init (GstFakeSink *fakesink);
static void gst_fakesink_set_clock (GstElement *element, GstClock *clock);
static GstPad* gst_fakesink_request_new_pad (GstElement *element, GstPadTemplate *templ, const
gchar *unused);
static void gst_fakesink_set_property (GObject *object, guint prop_id,
const GValue *value, GParamSpec *pspec);
static void gst_fakesink_get_property (GObject *object, guint prop_id,
GValue *value, GParamSpec *pspec);
static GstElementStateReturn
gst_fakesink_change_state (GstElement *element);
static void gst_fakesink_chain (GstPad *pad, GstBuffer *buf);
static GstElementClass *parent_class = NULL;
static guint gst_fakesink_signals[LAST_SIGNAL] = { 0 };
GType
gst_fakesink_get_type (void)
{
static GType fakesink_type = 0;
if (!fakesink_type) {
static const GTypeInfo fakesink_info = {
sizeof(GstFakeSinkClass), NULL,
NULL,
(GClassInitFunc)gst_fakesink_class_init,
NULL,
NULL,
sizeof(GstFakeSink),
0,
(GInstanceInitFunc)gst_fakesink_init,
};
fakesink_type = g_type_register_static (GST_TYPE_ELEMENT, "GstFakeSink", &fakesink_info, 0);
}
return fakesink_type;
}
static void
gst_fakesink_class_init (GstFakeSinkClass *klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass*)klass;
gstelement_class = (GstElementClass*)klass;
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_NUM_SINKS,
g_param_spec_int ("num_sinks", "Number of sinks", "The number of sinkpads",
1, G_MAXINT, 1, G_PARAM_READABLE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_STATE_ERROR,
g_param_spec_enum ("state_error", "State Error", "Generate a state change error",
GST_TYPE_FAKESINK_STATE_ERROR, FAKESINK_STATE_ERROR_NONE, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_LAST_MESSAGE,
g_param_spec_string ("last_message", "Last Message", "The message describing current status",
NULL, G_PARAM_READABLE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SYNC,
g_param_spec_boolean ("sync", "Sync", "Sync on the clock",
FALSE, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SIGNAL_HANDOFFS,
g_param_spec_boolean ("signal-handoffs", "Signal handoffs", "Send a signal before unreffing the buffer",
FALSE, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SILENT,
g_param_spec_boolean ("silent", "Silent", "Don't produce last_message events",
FALSE, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DUMP,
g_param_spec_boolean ("dump", "Dump", "Dump received bytes to stdout",
FALSE, G_PARAM_READWRITE));
gst_fakesink_signals[SIGNAL_HANDOFF] =
g_signal_new ("handoff", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstFakeSinkClass, handoff), NULL, NULL,
g_cclosure_marshal_VOID__POINTER, G_TYPE_NONE, 1,
G_TYPE_POINTER);
gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_fakesink_set_property);
gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_fakesink_get_property);
gstelement_class->request_new_pad = GST_DEBUG_FUNCPTR (gst_fakesink_request_new_pad);
gstelement_class->set_clock = GST_DEBUG_FUNCPTR (gst_fakesink_set_clock);
gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_fakesink_change_state);
}
static void
gst_fakesink_init (GstFakeSink *fakesink)
{
GstPad *pad;
pad = gst_pad_new ("sink", GST_PAD_SINK);
gst_element_add_pad (GST_ELEMENT (fakesink), pad);
gst_pad_set_chain_function (pad, GST_DEBUG_FUNCPTR (gst_fakesink_chain));
fakesink->silent = FALSE;
fakesink->dump = FALSE;
fakesink->sync = FALSE;
fakesink->last_message = NULL;
fakesink->state_error = FAKESINK_STATE_ERROR_NONE;
fakesink->signal_handoffs = FALSE;
GST_FLAG_SET (fakesink, GST_ELEMENT_EVENT_AWARE);
}
static void
gst_fakesink_set_clock (GstElement *element, GstClock *clock)
{
GstFakeSink *sink;
sink = GST_FAKESINK (element);
sink->clock = clock;
}
static GstPad*
gst_fakesink_request_new_pad (GstElement *element, GstPadTemplate *templ, const gchar *unused)
{
gchar *name;
GstPad *sinkpad;
GstFakeSink *fakesink;
g_return_val_if_fail (GST_IS_FAKESINK (element), NULL);
if (templ->direction != GST_PAD_SINK) {
g_warning ("gstfakesink: request new pad that is not a SINK pad\n");
return NULL;
}
fakesink = GST_FAKESINK (element);
name = g_strdup_printf ("sink%d", GST_ELEMENT (fakesink)->numsinkpads);
sinkpad = gst_pad_new_from_template (templ, name);
g_free (name);
gst_element_add_pad (GST_ELEMENT (fakesink), sinkpad);
return sinkpad;
}
static void
gst_fakesink_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
{
GstFakeSink *sink;
/* it's not null if we got it, but it might not be ours */
sink = GST_FAKESINK (object);
switch (prop_id) {
case ARG_SILENT:
sink->silent = g_value_get_boolean (value);
break;
case ARG_STATE_ERROR:
sink->state_error = g_value_get_enum (value);
break;
case ARG_DUMP:
sink->dump = g_value_get_boolean (value);
break;
case ARG_SYNC:
sink->sync = g_value_get_boolean (value);
break;
case ARG_SIGNAL_HANDOFFS:
sink->signal_handoffs = g_value_get_boolean (value);
break;
default:
break;
}
}
static void
gst_fakesink_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
GstFakeSink *sink;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_FAKESINK (object));
sink = GST_FAKESINK (object);
switch (prop_id) {
case ARG_NUM_SINKS:
g_value_set_int (value, GST_ELEMENT (sink)->numsinkpads);
break;
case ARG_STATE_ERROR:
g_value_set_enum (value, sink->state_error);
break;
case ARG_SILENT:
g_value_set_boolean (value, sink->silent);
break;
case ARG_DUMP:
g_value_set_boolean (value, sink->dump);
break;
case ARG_SYNC:
g_value_set_boolean (value, sink->sync);
break;
case ARG_SIGNAL_HANDOFFS:
g_value_set_boolean (value, sink->signal_handoffs);
break;
case ARG_LAST_MESSAGE:
g_value_set_string (value, sink->last_message);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_fakesink_chain (GstPad *pad, GstBuffer *buf)
{
GstFakeSink *fakesink;
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (buf != NULL);
fakesink = GST_FAKESINK (GST_OBJECT_PARENT (pad));
if (GST_IS_EVENT (buf)) {
GstEvent *event = GST_EVENT (buf);
if (!fakesink->silent) {
g_free (fakesink->last_message);
fakesink->last_message = g_strdup_printf ("chain ******* (%s:%s)E (type: %d) %p",
GST_DEBUG_PAD_NAME (pad), GST_EVENT_TYPE (event), event);
g_object_notify (G_OBJECT (fakesink), "last_message");
}
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_DISCONTINUOUS:
if (fakesink->sync && fakesink->clock) {
gint64 value = GST_EVENT_DISCONT_OFFSET (event, 0).value;
gst_clock_handle_discont (fakesink->clock, value);
}
default:
gst_pad_event_default (pad, event);
break;
}
return;
}
if (fakesink->sync && fakesink->clock) {
GstClockID id = gst_clock_new_single_shot_id (fakesink->clock, GST_BUFFER_TIMESTAMP (buf));
gst_element_clock_wait (GST_ELEMENT (fakesink), id, NULL);
gst_clock_id_free (id);
}
if (!fakesink->silent) {
g_free (fakesink->last_message);
fakesink->last_message = g_strdup_printf ("chain ******* (%s:%s)< (%d bytes, timestamp: %"
G_GINT64_FORMAT ", duration: %"
G_GINT64_FORMAT ", offset: %"
G_GINT64_FORMAT ", flags: %d) %p",
GST_DEBUG_PAD_NAME (pad), GST_BUFFER_SIZE (buf),
GST_BUFFER_TIMESTAMP (buf),
GST_BUFFER_DURATION (buf),
GST_BUFFER_OFFSET (buf),
GST_BUFFER_FLAGS (buf), buf);
g_object_notify (G_OBJECT (fakesink), "last_message");
}
if (fakesink->signal_handoffs)
g_signal_emit (G_OBJECT (fakesink), gst_fakesink_signals[SIGNAL_HANDOFF], 0, buf, pad);
if (fakesink->dump) {
gst_util_dump_mem (GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
}
gst_buffer_unref (buf);
}
static GstElementStateReturn
gst_fakesink_change_state (GstElement *element)
{
GstFakeSink *fakesink = GST_FAKESINK (element);
switch (GST_STATE_TRANSITION (element)) {
case GST_STATE_NULL_TO_READY:
if (fakesink->state_error == FAKESINK_STATE_ERROR_NULL_READY)
goto error;
break;
case GST_STATE_READY_TO_PAUSED:
if (fakesink->state_error == FAKESINK_STATE_ERROR_READY_PAUSED)
goto error;
break;
case GST_STATE_PAUSED_TO_PLAYING:
if (fakesink->state_error == FAKESINK_STATE_ERROR_PAUSED_PLAYING)
goto error;
break;
case GST_STATE_PLAYING_TO_PAUSED:
if (fakesink->state_error == FAKESINK_STATE_ERROR_PLAYING_PAUSED)
goto error;
break;
case GST_STATE_PAUSED_TO_READY:
if (fakesink->state_error == FAKESINK_STATE_ERROR_PAUSED_READY)
goto error;
break;
case GST_STATE_READY_TO_NULL:
if (fakesink->state_error == FAKESINK_STATE_ERROR_READY_NULL)
goto error;
g_free (fakesink->last_message);
fakesink->last_message = NULL;
break;
}
if (GST_ELEMENT_CLASS (parent_class)->change_state)
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
return GST_STATE_SUCCESS;
error:
gst_element_error (element, "failed state change as requested");
return GST_STATE_FAILURE;
}
gboolean
gst_fakesink_factory_init (GstElementFactory *factory)
{
gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET (fakesink_sink_factory));
return TRUE;
}