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Original commit message from CVS: Added state change code. Added/updated docs. Added sink base class, make fakesink extend the base class. Small cleanups in GstPipeline.
378 lines
12 KiB
C
378 lines
12 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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#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_fakesink_debug);
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#define GST_CAT_DEFAULT gst_fakesink_debug
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GstElementDetails gst_fakesink_details = GST_ELEMENT_DETAILS ("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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/* 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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LAST_SIGNAL
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};
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#define DEFAULT_STATE_ERROR FAKESINK_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_SYNC FALSE
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#define DEFAULT_SIGNAL_HANDOFFS FALSE
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#define DEFAULT_LAST_MESSAGE NULL
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enum
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{
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ARG_0,
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ARG_STATE_ERROR,
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ARG_SILENT,
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ARG_DUMP,
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ARG_SYNC,
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ARG_SIGNAL_HANDOFFS,
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ARG_LAST_MESSAGE,
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};
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#define GST_TYPE_FAKESINK_STATE_ERROR (gst_fakesink_state_error_get_type())
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static GType
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gst_fakesink_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 GEnumValue fakesink_state_error[] = {
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{FAKESINK_STATE_ERROR_NONE, "0", "No state change errors"},
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{FAKESINK_STATE_ERROR_NULL_READY, "1",
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"Fail state change from NULL to READY"},
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{FAKESINK_STATE_ERROR_READY_PAUSED, "2",
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"Fail state change from READY to PAUSED"},
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{FAKESINK_STATE_ERROR_PAUSED_PLAYING, "3",
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"Fail state change from PAUSED to PLAYING"},
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{FAKESINK_STATE_ERROR_PLAYING_PAUSED, "4",
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"Fail state change from PLAYING to PAUSED"},
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{FAKESINK_STATE_ERROR_PAUSED_READY, "5",
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"Fail state change from PAUSED to READY"},
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{FAKESINK_STATE_ERROR_READY_NULL, "6",
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"Fail state change from 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_fakesink_debug, "fakesink", 0, "fakesink element");
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GST_BOILERPLATE_FULL (GstFakeSink, gst_fakesink, GstBaseSink, GST_TYPE_BASESINK,
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_do_init);
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static void gst_fakesink_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_fakesink_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static GstElementStateReturn gst_fakesink_change_state (GstElement * element);
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static GstFlowReturn gst_fakesink_preroll (GstBaseSink * bsink,
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GstBuffer * buffer);
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static GstFlowReturn gst_fakesink_render (GstBaseSink * bsink,
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GstBuffer * buffer);
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static void gst_fakesink_event (GstBaseSink * bsink, GstEvent * event);
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static void gst_fakesink_get_times (GstBaseSink * bsink, GstBuffer * buffer,
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GstClockTime * start, GstClockTime * end);
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static guint gst_fakesink_signals[LAST_SIGNAL] = { 0 };
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static void
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gst_fakesink_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_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&sinktemplate));
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gst_element_class_set_details (gstelement_class, &gst_fakesink_details);
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}
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static void
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gst_fakesink_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 *gstbasesink_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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gstbasesink_class = (GstBaseSinkClass *) klass;
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gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_fakesink_set_property);
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gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_fakesink_get_property);
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_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_FAKESINK_STATE_ERROR,
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DEFAULT_STATE_ERROR, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_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));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SYNC,
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g_param_spec_boolean ("sync", "Sync", "Sync on the clock", DEFAULT_SYNC,
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G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_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));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_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));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DUMP,
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g_param_spec_boolean ("dump", "Dump", "Dump received bytes to stdout",
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DEFAULT_DUMP, G_PARAM_READWRITE));
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gst_fakesink_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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gst_marshal_VOID__BOXED_OBJECT, G_TYPE_NONE, 2,
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GST_TYPE_BUFFER | G_SIGNAL_TYPE_STATIC_SCOPE, GST_TYPE_PAD);
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gstelement_class->change_state =
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GST_DEBUG_FUNCPTR (gst_fakesink_change_state);
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gstbasesink_class->event = GST_DEBUG_FUNCPTR (gst_fakesink_event);
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gstbasesink_class->preroll = GST_DEBUG_FUNCPTR (gst_fakesink_preroll);
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gstbasesink_class->render = GST_DEBUG_FUNCPTR (gst_fakesink_render);
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gstbasesink_class->get_times = GST_DEBUG_FUNCPTR (gst_fakesink_get_times);
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}
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static void
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gst_fakesink_init (GstFakeSink * fakesink)
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{
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fakesink->silent = DEFAULT_SILENT;
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fakesink->dump = DEFAULT_DUMP;
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fakesink->sync = DEFAULT_SYNC;
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fakesink->last_message = 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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}
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static void
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gst_fakesink_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_FAKESINK (object);
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switch (prop_id) {
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case ARG_SILENT:
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sink->silent = g_value_get_boolean (value);
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break;
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case ARG_STATE_ERROR:
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sink->state_error = g_value_get_enum (value);
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break;
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case ARG_DUMP:
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sink->dump = g_value_get_boolean (value);
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break;
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case ARG_SYNC:
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sink->sync = g_value_get_boolean (value);
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break;
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case ARG_SIGNAL_HANDOFFS:
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sink->signal_handoffs = g_value_get_boolean (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_fakesink_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_FAKESINK (object);
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switch (prop_id) {
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case ARG_STATE_ERROR:
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g_value_set_enum (value, sink->state_error);
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break;
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case ARG_SILENT:
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g_value_set_boolean (value, sink->silent);
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break;
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case ARG_DUMP:
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g_value_set_boolean (value, sink->dump);
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break;
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case ARG_SYNC:
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g_value_set_boolean (value, sink->sync);
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break;
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case ARG_SIGNAL_HANDOFFS:
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g_value_set_boolean (value, sink->signal_handoffs);
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break;
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case ARG_LAST_MESSAGE:
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g_value_set_string (value, sink->last_message);
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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_fakesink_get_times (GstBaseSink * bsink, GstBuffer * buffer,
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GstClockTime * start, GstClockTime * end)
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{
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GstFakeSink *sink = GST_FAKESINK (bsink);
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if (sink->sync) {
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GST_BASESINK_CLASS (parent_class)->get_times (bsink, buffer, start, end);
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}
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}
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static void
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gst_fakesink_event (GstBaseSink * bsink, GstEvent * event)
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{
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GstFakeSink *sink = GST_FAKESINK (bsink);
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if (!sink->silent) {
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g_free (sink->last_message);
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sink->last_message =
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g_strdup_printf ("chain ******* E (type: %d) %p",
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GST_EVENT_TYPE (event), event);
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g_object_notify (G_OBJECT (sink), "last_message");
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}
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}
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static GstFlowReturn
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gst_fakesink_preroll (GstBaseSink * bsink, GstBuffer * buffer)
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{
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GstFakeSink *sink = GST_FAKESINK (bsink);
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if (!sink->silent) {
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g_free (sink->last_message);
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sink->last_message = g_strdup_printf ("preroll ******* ");
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g_object_notify (G_OBJECT (sink), "last_message");
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}
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return GST_FLOW_OK;
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}
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static GstFlowReturn
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gst_fakesink_render (GstBaseSink * bsink, GstBuffer * buf)
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{
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GstFakeSink *sink = GST_FAKESINK (bsink);
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if (!sink->silent) {
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g_free (sink->last_message);
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sink->last_message =
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g_strdup_printf ("chain ******* < (%d bytes, timestamp: %"
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GST_TIME_FORMAT ", duration: %" GST_TIME_FORMAT ", offset: %"
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G_GINT64_FORMAT ", offset_end: %" G_GINT64_FORMAT ", flags: %d) %p",
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GST_BUFFER_SIZE (buf),
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GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)),
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GST_TIME_ARGS (GST_BUFFER_DURATION (buf)), GST_BUFFER_OFFSET (buf),
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GST_BUFFER_OFFSET_END (buf), GST_BUFFER_FLAGS (buf), buf);
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g_object_notify (G_OBJECT (sink), "last_message");
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}
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if (sink->signal_handoffs)
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g_signal_emit (G_OBJECT (sink), gst_fakesink_signals[SIGNAL_HANDOFF], 0,
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buf);
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if (sink->dump) {
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gst_util_dump_mem (GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
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}
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return GST_FLOW_OK;
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}
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static GstElementStateReturn
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gst_fakesink_change_state (GstElement * element)
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{
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GstElementStateReturn ret = GST_STATE_SUCCESS;
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GstFakeSink *fakesink = GST_FAKESINK (element);
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GstElementState transition = GST_STATE_TRANSITION (element);
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switch (transition) {
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case GST_STATE_NULL_TO_READY:
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if (fakesink->state_error == FAKESINK_STATE_ERROR_NULL_READY)
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goto error;
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break;
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case GST_STATE_READY_TO_PAUSED:
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if (fakesink->state_error == FAKESINK_STATE_ERROR_READY_PAUSED)
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goto error;
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break;
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case GST_STATE_PAUSED_TO_PLAYING:
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if (fakesink->state_error == FAKESINK_STATE_ERROR_PAUSED_PLAYING)
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goto error;
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break;
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case GST_STATE_PLAYING_TO_PAUSED:
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if (fakesink->state_error == FAKESINK_STATE_ERROR_PLAYING_PAUSED)
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goto error;
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break;
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case GST_STATE_PAUSED_TO_READY:
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if (fakesink->state_error == FAKESINK_STATE_ERROR_PAUSED_READY)
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goto error;
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break;
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case GST_STATE_READY_TO_NULL:
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if (fakesink->state_error == FAKESINK_STATE_ERROR_READY_NULL)
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goto error;
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g_free (fakesink->last_message);
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fakesink->last_message = NULL;
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break;
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default:
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break;
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}
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ret = GST_ELEMENT_CLASS (parent_class)->change_state (element);
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return ret;
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error:
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GST_ELEMENT_ERROR (element, CORE, STATE_CHANGE, (NULL), (NULL));
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return GST_STATE_FAILURE;
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}
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