mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-08 21:28:45 +00:00
There's not much point in using GST_DEBUG_FUNCPTR with GObject virtual functions such as get_property, set_propery, finalize and dispose, since they'll never be used by anyone anyway. Saves a few bytes and possibly a tenth of a polar bear.
554 lines
17 KiB
C
554 lines
17 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2005 Wim Taymans <wim@fluendo.com>
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*
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* gstfakesink.c:
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/**
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* SECTION:element-fakesink
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* @see_also: #GstFakeSrc
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*
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* Dummy sink that swallows everything.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include "gstfakesink.h"
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#include <gst/gstmarshal.h>
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static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS_ANY);
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GST_DEBUG_CATEGORY_STATIC (gst_fake_sink_debug);
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#define GST_CAT_DEFAULT gst_fake_sink_debug
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/* FakeSink signals and args */
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enum
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{
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/* FILL ME */
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SIGNAL_HANDOFF,
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SIGNAL_PREROLL_HANDOFF,
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LAST_SIGNAL
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};
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#define DEFAULT_SYNC FALSE
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#define DEFAULT_STATE_ERROR FAKE_SINK_STATE_ERROR_NONE
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#define DEFAULT_SILENT FALSE
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#define DEFAULT_DUMP FALSE
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#define DEFAULT_SIGNAL_HANDOFFS FALSE
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#define DEFAULT_LAST_MESSAGE NULL
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#define DEFAULT_CAN_ACTIVATE_PUSH TRUE
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#define DEFAULT_CAN_ACTIVATE_PULL FALSE
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#define DEFAULT_NUM_BUFFERS -1
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enum
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{
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PROP_0,
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PROP_STATE_ERROR,
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PROP_SILENT,
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PROP_DUMP,
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PROP_SIGNAL_HANDOFFS,
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PROP_LAST_MESSAGE,
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PROP_CAN_ACTIVATE_PUSH,
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PROP_CAN_ACTIVATE_PULL,
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PROP_NUM_BUFFERS
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};
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#define GST_TYPE_FAKE_SINK_STATE_ERROR (gst_fake_sink_state_error_get_type())
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static GType
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gst_fake_sink_state_error_get_type (void)
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{
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static GType fakesink_state_error_type = 0;
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static const GEnumValue fakesink_state_error[] = {
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{FAKE_SINK_STATE_ERROR_NONE, "No state change errors", "none"},
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{FAKE_SINK_STATE_ERROR_NULL_READY,
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"Fail state change from NULL to READY", "null-to-ready"},
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{FAKE_SINK_STATE_ERROR_READY_PAUSED,
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"Fail state change from READY to PAUSED", "ready-to-paused"},
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{FAKE_SINK_STATE_ERROR_PAUSED_PLAYING,
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"Fail state change from PAUSED to PLAYING", "paused-to-playing"},
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{FAKE_SINK_STATE_ERROR_PLAYING_PAUSED,
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"Fail state change from PLAYING to PAUSED", "playing-to-paused"},
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{FAKE_SINK_STATE_ERROR_PAUSED_READY,
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"Fail state change from PAUSED to READY", "paused-to-ready"},
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{FAKE_SINK_STATE_ERROR_READY_NULL,
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"Fail state change from READY to NULL", "ready-to-null"},
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{0, NULL, NULL},
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};
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if (!fakesink_state_error_type) {
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fakesink_state_error_type =
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g_enum_register_static ("GstFakeSinkStateError", fakesink_state_error);
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}
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return fakesink_state_error_type;
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}
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#define _do_init(bla) \
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GST_DEBUG_CATEGORY_INIT (gst_fake_sink_debug, "fakesink", 0, "fakesink element");
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GST_BOILERPLATE_FULL (GstFakeSink, gst_fake_sink, GstBaseSink,
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GST_TYPE_BASE_SINK, _do_init);
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static void gst_fake_sink_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_fake_sink_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void gst_fake_sink_finalize (GObject * obj);
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static GstStateChangeReturn gst_fake_sink_change_state (GstElement * element,
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GstStateChange transition);
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static GstFlowReturn gst_fake_sink_preroll (GstBaseSink * bsink,
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GstBuffer * buffer);
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static GstFlowReturn gst_fake_sink_render (GstBaseSink * bsink,
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GstBuffer * buffer);
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static gboolean gst_fake_sink_event (GstBaseSink * bsink, GstEvent * event);
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static guint gst_fake_sink_signals[LAST_SIGNAL] = { 0 };
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static void
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marshal_VOID__MINIOBJECT_OBJECT (GClosure * closure, GValue * return_value,
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guint n_param_values, const GValue * param_values, gpointer invocation_hint,
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gpointer marshal_data)
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{
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typedef void (*marshalfunc_VOID__MINIOBJECT_OBJECT) (gpointer obj,
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gpointer arg1, gpointer arg2, gpointer data2);
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register marshalfunc_VOID__MINIOBJECT_OBJECT callback;
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register GCClosure *cc = (GCClosure *) closure;
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register gpointer data1, data2;
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g_return_if_fail (n_param_values == 3);
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if (G_CCLOSURE_SWAP_DATA (closure)) {
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data1 = closure->data;
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data2 = g_value_peek_pointer (param_values + 0);
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} else {
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data1 = g_value_peek_pointer (param_values + 0);
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data2 = closure->data;
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}
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callback =
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(marshalfunc_VOID__MINIOBJECT_OBJECT) (marshal_data ? marshal_data :
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cc->callback);
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callback (data1, gst_value_get_mini_object (param_values + 1),
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g_value_get_object (param_values + 2), data2);
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}
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static void
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gst_fake_sink_base_init (gpointer g_class)
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{
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GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_set_details_simple (gstelement_class,
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"Fake Sink",
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"Sink",
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"Black hole for data",
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"Erik Walthinsen <omega@cse.ogi.edu>, "
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"Wim Taymans <wim@fluendo.com>, "
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"Mr. 'frag-me-more' Vanderwingo <wingo@fluendo.com>");
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&sinktemplate));
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}
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static void
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gst_fake_sink_class_init (GstFakeSinkClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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GstBaseSinkClass *gstbase_sink_class;
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gobject_class = G_OBJECT_CLASS (klass);
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gstelement_class = GST_ELEMENT_CLASS (klass);
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gstbase_sink_class = GST_BASE_SINK_CLASS (klass);
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gobject_class->set_property = gst_fake_sink_set_property;
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gobject_class->get_property = gst_fake_sink_get_property;
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gobject_class->finalize = gst_fake_sink_finalize;
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g_object_class_install_property (gobject_class, PROP_STATE_ERROR,
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g_param_spec_enum ("state-error", "State Error",
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"Generate a state change error", GST_TYPE_FAKE_SINK_STATE_ERROR,
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DEFAULT_STATE_ERROR, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_LAST_MESSAGE,
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g_param_spec_string ("last-message", "Last Message",
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"The message describing current status", DEFAULT_LAST_MESSAGE,
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G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_SIGNAL_HANDOFFS,
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g_param_spec_boolean ("signal-handoffs", "Signal handoffs",
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"Send a signal before unreffing the buffer", DEFAULT_SIGNAL_HANDOFFS,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_SILENT,
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g_param_spec_boolean ("silent", "Silent",
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"Don't produce last_message events", DEFAULT_SILENT,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_DUMP,
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g_param_spec_boolean ("dump", "Dump", "Dump buffer contents to stdout",
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DEFAULT_DUMP, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class,
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PROP_CAN_ACTIVATE_PUSH,
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g_param_spec_boolean ("can-activate-push", "Can activate push",
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"Can activate in push mode", DEFAULT_CAN_ACTIVATE_PUSH,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class,
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PROP_CAN_ACTIVATE_PULL,
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g_param_spec_boolean ("can-activate-pull", "Can activate pull",
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"Can activate in pull mode", DEFAULT_CAN_ACTIVATE_PULL,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_NUM_BUFFERS,
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g_param_spec_int ("num-buffers", "num-buffers",
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"Number of buffers to accept going EOS", -1, G_MAXINT,
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DEFAULT_NUM_BUFFERS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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/**
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* GstFakeSink::handoff:
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* @fakesink: the fakesink instance
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* @buffer: the buffer that just has been received
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* @pad: the pad that received it
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*
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* This signal gets emitted before unreffing the buffer.
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*/
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gst_fake_sink_signals[SIGNAL_HANDOFF] =
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g_signal_new ("handoff", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GstFakeSinkClass, handoff), NULL, NULL,
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marshal_VOID__MINIOBJECT_OBJECT, G_TYPE_NONE, 2,
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GST_TYPE_BUFFER, GST_TYPE_PAD);
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/**
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* GstFakeSink::preroll-handoff:
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* @fakesink: the fakesink instance
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* @buffer: the buffer that just has been received
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* @pad: the pad that received it
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*
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* This signal gets emitted before unreffing the buffer.
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*
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* Since: 0.10.7
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*/
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gst_fake_sink_signals[SIGNAL_PREROLL_HANDOFF] =
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g_signal_new ("preroll-handoff", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstFakeSinkClass, preroll_handoff),
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NULL, NULL, marshal_VOID__MINIOBJECT_OBJECT, G_TYPE_NONE, 2,
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GST_TYPE_BUFFER, GST_TYPE_PAD);
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gstelement_class->change_state =
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GST_DEBUG_FUNCPTR (gst_fake_sink_change_state);
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gstbase_sink_class->event = GST_DEBUG_FUNCPTR (gst_fake_sink_event);
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gstbase_sink_class->preroll = GST_DEBUG_FUNCPTR (gst_fake_sink_preroll);
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gstbase_sink_class->render = GST_DEBUG_FUNCPTR (gst_fake_sink_render);
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}
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static void
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gst_fake_sink_init (GstFakeSink * fakesink, GstFakeSinkClass * g_class)
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{
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fakesink->silent = DEFAULT_SILENT;
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fakesink->dump = DEFAULT_DUMP;
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GST_BASE_SINK (fakesink)->sync = DEFAULT_SYNC;
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fakesink->last_message = g_strdup (DEFAULT_LAST_MESSAGE);
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fakesink->state_error = DEFAULT_STATE_ERROR;
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fakesink->signal_handoffs = DEFAULT_SIGNAL_HANDOFFS;
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fakesink->num_buffers = DEFAULT_NUM_BUFFERS;
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g_static_rec_mutex_init (&fakesink->notify_lock);
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}
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static void
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gst_fake_sink_finalize (GObject * obj)
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{
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GstFakeSink *sink = GST_FAKE_SINK (obj);
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g_static_rec_mutex_free (&sink->notify_lock);
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G_OBJECT_CLASS (parent_class)->finalize (obj);
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}
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static void
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gst_fake_sink_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstFakeSink *sink;
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sink = GST_FAKE_SINK (object);
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switch (prop_id) {
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case PROP_SILENT:
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sink->silent = g_value_get_boolean (value);
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break;
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case PROP_STATE_ERROR:
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sink->state_error = g_value_get_enum (value);
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break;
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case PROP_DUMP:
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sink->dump = g_value_get_boolean (value);
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break;
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case PROP_SIGNAL_HANDOFFS:
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sink->signal_handoffs = g_value_get_boolean (value);
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break;
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case PROP_CAN_ACTIVATE_PUSH:
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GST_BASE_SINK (sink)->can_activate_push = g_value_get_boolean (value);
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break;
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case PROP_CAN_ACTIVATE_PULL:
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GST_BASE_SINK (sink)->can_activate_pull = g_value_get_boolean (value);
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break;
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case PROP_NUM_BUFFERS:
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sink->num_buffers = g_value_get_int (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_fake_sink_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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{
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GstFakeSink *sink;
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sink = GST_FAKE_SINK (object);
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switch (prop_id) {
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case PROP_STATE_ERROR:
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g_value_set_enum (value, sink->state_error);
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break;
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case PROP_SILENT:
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g_value_set_boolean (value, sink->silent);
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break;
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case PROP_DUMP:
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g_value_set_boolean (value, sink->dump);
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break;
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case PROP_SIGNAL_HANDOFFS:
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g_value_set_boolean (value, sink->signal_handoffs);
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break;
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case PROP_LAST_MESSAGE:
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GST_OBJECT_LOCK (sink);
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g_value_set_string (value, sink->last_message);
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GST_OBJECT_UNLOCK (sink);
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break;
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case PROP_CAN_ACTIVATE_PUSH:
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g_value_set_boolean (value, GST_BASE_SINK (sink)->can_activate_push);
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break;
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case PROP_CAN_ACTIVATE_PULL:
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g_value_set_boolean (value, GST_BASE_SINK (sink)->can_activate_pull);
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break;
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case PROP_NUM_BUFFERS:
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g_value_set_int (value, sink->num_buffers);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_fake_sink_notify_last_message (GstFakeSink * sink)
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{
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/* FIXME: this hacks around a bug in GLib/GObject: doing concurrent
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* g_object_notify() on the same object might lead to crashes, see
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* http://bugzilla.gnome.org/show_bug.cgi?id=166020#c60 and follow-ups.
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* So we really don't want to do a g_object_notify() here for out-of-band
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* events with the streaming thread possibly also doing a g_object_notify()
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* for an in-band buffer or event. */
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g_static_rec_mutex_lock (&sink->notify_lock);
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g_object_notify ((GObject *) sink, "last_message");
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g_static_rec_mutex_unlock (&sink->notify_lock);
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}
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static gboolean
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gst_fake_sink_event (GstBaseSink * bsink, GstEvent * event)
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{
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GstFakeSink *sink = GST_FAKE_SINK (bsink);
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if (!sink->silent) {
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const GstStructure *s;
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gchar *sstr;
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GST_OBJECT_LOCK (sink);
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g_free (sink->last_message);
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if ((s = gst_event_get_structure (event)))
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sstr = gst_structure_to_string (s);
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else
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sstr = g_strdup ("");
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sink->last_message =
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g_strdup_printf ("event ******* E (type: %d, %s) %p",
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GST_EVENT_TYPE (event), sstr, event);
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g_free (sstr);
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GST_OBJECT_UNLOCK (sink);
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gst_fake_sink_notify_last_message (sink);
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}
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if (GST_BASE_SINK_CLASS (parent_class)->event) {
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return GST_BASE_SINK_CLASS (parent_class)->event (bsink, event);
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} else {
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return TRUE;
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}
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}
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static GstFlowReturn
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gst_fake_sink_preroll (GstBaseSink * bsink, GstBuffer * buffer)
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{
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GstFakeSink *sink = GST_FAKE_SINK (bsink);
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if (sink->num_buffers_left == 0)
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goto eos;
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if (!sink->silent) {
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GST_OBJECT_LOCK (sink);
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g_free (sink->last_message);
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sink->last_message = g_strdup_printf ("preroll ******* ");
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GST_OBJECT_UNLOCK (sink);
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gst_fake_sink_notify_last_message (sink);
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}
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if (sink->signal_handoffs) {
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g_signal_emit (sink,
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gst_fake_sink_signals[SIGNAL_PREROLL_HANDOFF], 0, buffer,
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bsink->sinkpad);
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}
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return GST_FLOW_OK;
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/* ERRORS */
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eos:
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{
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GST_DEBUG_OBJECT (sink, "we are EOS");
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return GST_FLOW_UNEXPECTED;
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}
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}
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static GstFlowReturn
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gst_fake_sink_render (GstBaseSink * bsink, GstBuffer * buf)
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{
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GstFakeSink *sink = GST_FAKE_SINK_CAST (bsink);
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if (sink->num_buffers_left == 0)
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goto eos;
|
|
|
|
if (sink->num_buffers_left != -1)
|
|
sink->num_buffers_left--;
|
|
|
|
if (!sink->silent) {
|
|
gchar ts_str[64], dur_str[64];
|
|
|
|
GST_OBJECT_LOCK (sink);
|
|
g_free (sink->last_message);
|
|
|
|
if (GST_BUFFER_TIMESTAMP (buf) != GST_CLOCK_TIME_NONE) {
|
|
g_snprintf (ts_str, sizeof (ts_str), "%" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
|
|
} else {
|
|
g_strlcpy (ts_str, "none", sizeof (ts_str));
|
|
}
|
|
|
|
if (GST_BUFFER_DURATION (buf) != GST_CLOCK_TIME_NONE) {
|
|
g_snprintf (dur_str, sizeof (dur_str), "%" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (GST_BUFFER_DURATION (buf)));
|
|
} else {
|
|
g_strlcpy (dur_str, "none", sizeof (dur_str));
|
|
}
|
|
|
|
sink->last_message =
|
|
g_strdup_printf ("chain ******* < (%5d bytes, timestamp: %s"
|
|
", duration: %s, offset: %" G_GINT64_FORMAT ", offset_end: %"
|
|
G_GINT64_FORMAT ", flags: %d) %p", GST_BUFFER_SIZE (buf), ts_str,
|
|
dur_str, GST_BUFFER_OFFSET (buf), GST_BUFFER_OFFSET_END (buf),
|
|
GST_MINI_OBJECT_CAST (buf)->flags, buf);
|
|
GST_OBJECT_UNLOCK (sink);
|
|
|
|
gst_fake_sink_notify_last_message (sink);
|
|
}
|
|
if (sink->signal_handoffs)
|
|
g_signal_emit (sink, gst_fake_sink_signals[SIGNAL_HANDOFF], 0, buf,
|
|
bsink->sinkpad);
|
|
|
|
if (sink->dump) {
|
|
gst_util_dump_mem (GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
|
|
}
|
|
if (sink->num_buffers_left == 0)
|
|
goto eos;
|
|
|
|
return GST_FLOW_OK;
|
|
|
|
/* ERRORS */
|
|
eos:
|
|
{
|
|
GST_DEBUG_OBJECT (sink, "we are EOS");
|
|
return GST_FLOW_UNEXPECTED;
|
|
}
|
|
}
|
|
|
|
static GstStateChangeReturn
|
|
gst_fake_sink_change_state (GstElement * element, GstStateChange transition)
|
|
{
|
|
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
|
|
GstFakeSink *fakesink = GST_FAKE_SINK (element);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_NULL_TO_READY:
|
|
if (fakesink->state_error == FAKE_SINK_STATE_ERROR_NULL_READY)
|
|
goto error;
|
|
break;
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
|
if (fakesink->state_error == FAKE_SINK_STATE_ERROR_READY_PAUSED)
|
|
goto error;
|
|
fakesink->num_buffers_left = fakesink->num_buffers;
|
|
break;
|
|
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
|
|
if (fakesink->state_error == FAKE_SINK_STATE_ERROR_PAUSED_PLAYING)
|
|
goto error;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
|
|
if (fakesink->state_error == FAKE_SINK_STATE_ERROR_PLAYING_PAUSED)
|
|
goto error;
|
|
break;
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
|
if (fakesink->state_error == FAKE_SINK_STATE_ERROR_PAUSED_READY)
|
|
goto error;
|
|
break;
|
|
case GST_STATE_CHANGE_READY_TO_NULL:
|
|
if (fakesink->state_error == FAKE_SINK_STATE_ERROR_READY_NULL)
|
|
goto error;
|
|
GST_OBJECT_LOCK (fakesink);
|
|
g_free (fakesink->last_message);
|
|
fakesink->last_message = NULL;
|
|
GST_OBJECT_UNLOCK (fakesink);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
|
|
/* ERROR */
|
|
error:
|
|
GST_ELEMENT_ERROR (element, CORE, STATE_CHANGE, (NULL),
|
|
("Erroring out on state change as requested"));
|
|
return GST_STATE_CHANGE_FAILURE;
|
|
}
|