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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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Original commit message from CVS: Remove threadsafe properties. Fix elements because GObject complains when installing a property before declaring a set/get_property handler. Rearrange gstelement.h file, use STATE macros for state locks. Free mutexes in the finalize method instead of dispose.
543 lines
18 KiB
C
543 lines
18 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000 Wim Taymans <wtay@chello.be>
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*
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* gstidentity.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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#include <stdlib.h>
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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 "../gst-i18n-lib.h"
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#include "gstidentity.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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static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS_ANY);
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GST_DEBUG_CATEGORY_STATIC (gst_identity_debug);
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#define GST_CAT_DEFAULT gst_identity_debug
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GstElementDetails gst_identity_details = GST_ELEMENT_DETAILS ("Identity",
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"Generic",
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"Pass data without modification",
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"Erik Walthinsen <omega@cse.ogi.edu>");
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/* Identity signals and args */
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enum
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{
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SIGNAL_HANDOFF,
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/* FILL ME */
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LAST_SIGNAL
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};
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#define DEFAULT_LOOP_BASED FALSE
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#define DEFAULT_SLEEP_TIME 0
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#define DEFAULT_DUPLICATE 1
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#define DEFAULT_ERROR_AFTER -1
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#define DEFAULT_DROP_PROBABILITY 0.0
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#define DEFAULT_DATARATE 0
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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_CHECK_PERFECT FALSE
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enum
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{
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ARG_0,
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ARG_LOOP_BASED,
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ARG_SLEEP_TIME,
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ARG_DUPLICATE,
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ARG_ERROR_AFTER,
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ARG_DROP_PROBABILITY,
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ARG_DATARATE,
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ARG_SILENT,
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ARG_LAST_MESSAGE,
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ARG_DUMP,
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ARG_SYNC,
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ARG_CHECK_PERFECT
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};
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#define _do_init(bla) \
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GST_DEBUG_CATEGORY_INIT (gst_identity_debug, "identity", 0, "identity element");
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GST_BOILERPLATE_FULL (GstIdentity, gst_identity, GstElement, GST_TYPE_ELEMENT,
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_do_init);
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static void gst_identity_finalize (GObject * object);
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static void gst_identity_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_identity_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static GstElementStateReturn gst_identity_change_state (GstElement * element);
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static void gst_identity_chain (GstPad * pad, GstData * _data);
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static void gst_identity_set_clock (GstElement * element, GstClock * clock);
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static guint gst_identity_signals[LAST_SIGNAL] = { 0 };
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static void
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gst_identity_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 (&srctemplate));
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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_identity_details);
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}
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static void
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gst_identity_finalize (GObject * object)
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{
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GstIdentity *identity;
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identity = GST_IDENTITY (object);
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g_free (identity->last_message);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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gst_identity_class_init (GstIdentityClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_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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gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_identity_set_property);
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gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_identity_get_property);
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_LOOP_BASED,
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g_param_spec_boolean ("loop-based", "Loop-based",
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"Set to TRUE to use loop-based rather than chain-based scheduling",
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DEFAULT_LOOP_BASED, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SLEEP_TIME,
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g_param_spec_uint ("sleep-time", "Sleep time",
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"Microseconds to sleep between processing", 0, G_MAXUINT,
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DEFAULT_SLEEP_TIME, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DUPLICATE,
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g_param_spec_uint ("duplicate", "Duplicate Buffers",
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"Push the buffers N times", 0, G_MAXUINT, DEFAULT_DUPLICATE,
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G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ERROR_AFTER,
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g_param_spec_int ("error_after", "Error After", "Error after N buffers",
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G_MININT, G_MAXINT, DEFAULT_ERROR_AFTER, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DROP_PROBABILITY,
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g_param_spec_float ("drop_probability", "Drop Probability",
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"The Probability a buffer is dropped", 0.0, 1.0,
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DEFAULT_DROP_PROBABILITY, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DATARATE,
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g_param_spec_int ("datarate", "Datarate",
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"(Re)timestamps buffers with number of bytes per second (0 = inactive)",
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0, G_MAXINT, DEFAULT_DATARATE, 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", "silent", DEFAULT_SILENT,
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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", "last-message", NULL,
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G_PARAM_READABLE));
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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 buffer contents",
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DEFAULT_DUMP, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SYNC,
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g_param_spec_boolean ("sync", "Synchronize",
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"Synchronize to pipeline clock", DEFAULT_SYNC, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_CHECK_PERFECT,
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g_param_spec_boolean ("check-perfect", "Check For Perfect Stream",
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"Verify that the stream is time- and data-contiguous",
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DEFAULT_CHECK_PERFECT, G_PARAM_READWRITE));
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gst_identity_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 (GstIdentityClass, handoff), NULL, NULL,
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gst_marshal_VOID__BOXED, G_TYPE_NONE, 1,
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GST_TYPE_BUFFER | G_SIGNAL_TYPE_STATIC_SCOPE);
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gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_identity_finalize);
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gstelement_class->set_clock = GST_DEBUG_FUNCPTR (gst_identity_set_clock);
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gstelement_class->change_state =
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GST_DEBUG_FUNCPTR (gst_identity_change_state);
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}
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static void
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gst_identity_init (GstIdentity * identity)
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{
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identity->sinkpad =
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gst_pad_new_from_template (gst_static_pad_template_get (&sinktemplate),
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"sink");
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gst_element_add_pad (GST_ELEMENT (identity), identity->sinkpad);
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gst_pad_set_chain_function (identity->sinkpad,
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GST_DEBUG_FUNCPTR (gst_identity_chain));
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//gst_pad_set_link_function (identity->sinkpad, gst_pad_proxy_pad_link);
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gst_pad_set_getcaps_function (identity->sinkpad, gst_pad_proxy_getcaps);
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identity->srcpad =
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gst_pad_new_from_template (gst_static_pad_template_get (&srctemplate),
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"src");
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gst_element_add_pad (GST_ELEMENT (identity), identity->srcpad);
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//gst_pad_set_link_function (identity->srcpad, gst_pad_proxy_pad_link);
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gst_pad_set_getcaps_function (identity->srcpad, gst_pad_proxy_getcaps);
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identity->loop_based = DEFAULT_LOOP_BASED;
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identity->sleep_time = DEFAULT_SLEEP_TIME;
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identity->duplicate = DEFAULT_DUPLICATE;
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identity->error_after = DEFAULT_ERROR_AFTER;
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identity->drop_probability = DEFAULT_DROP_PROBABILITY;
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identity->datarate = DEFAULT_DATARATE;
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identity->silent = DEFAULT_SILENT;
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identity->sync = DEFAULT_SYNC;
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identity->check_perfect = DEFAULT_CHECK_PERFECT;
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identity->dump = DEFAULT_DUMP;
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identity->last_message = NULL;
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identity->srccaps = NULL;
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GST_FLAG_SET (identity, GST_ELEMENT_EVENT_AWARE);
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}
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static void
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gst_identity_set_clock (GstElement * element, GstClock * clock)
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{
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GstIdentity *identity = GST_IDENTITY (element);
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gst_object_replace ((GstObject **) & identity->clock, (GstObject *) clock);
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}
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static void
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gst_identity_chain (GstPad * pad, GstData * _data)
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{
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GstBuffer *buf = GST_BUFFER (_data);
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GstIdentity *identity;
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guint i;
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g_return_if_fail (pad != NULL);
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g_return_if_fail (GST_IS_PAD (pad));
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g_return_if_fail (buf != NULL);
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identity = GST_IDENTITY (gst_pad_get_parent (pad));
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if (GST_IS_EVENT (buf)) {
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GstEvent *event = GST_EVENT (buf);
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if (!identity->silent) {
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g_free (identity->last_message);
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identity->last_message =
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g_strdup_printf ("chain ******* (%s:%s)E (type: %d) %p",
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GST_DEBUG_PAD_NAME (pad), GST_EVENT_TYPE (event), event);
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g_object_notify (G_OBJECT (identity), "last_message");
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}
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gst_pad_event_default (pad, event);
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return;
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}
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/* see if we need to do perfect stream checking */
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/* invalid timestamp drops us out of check. FIXME: maybe warn ? */
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if (identity->check_perfect &&
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GST_BUFFER_TIMESTAMP (buf) != GST_CLOCK_TIME_NONE) {
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/* check if we had a previous buffer to compare to */
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if (identity->prev_timestamp != GST_CLOCK_TIME_NONE) {
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if (identity->prev_timestamp + identity->prev_duration !=
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GST_BUFFER_TIMESTAMP (buf)) {
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GST_WARNING_OBJECT (identity,
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"Buffer not time-contiguous with previous one: " "prev ts %"
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GST_TIME_FORMAT ", prev dur %" GST_TIME_FORMAT ", new ts %"
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GST_TIME_FORMAT, GST_TIME_ARGS (identity->prev_timestamp),
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GST_TIME_ARGS (identity->prev_duration),
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GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
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}
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if (identity->prev_offset_end != GST_BUFFER_OFFSET (buf)) {
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GST_WARNING_OBJECT (identity,
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"Buffer not data-contiguous with previous one: "
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"prev offset_end %" G_GINT64_FORMAT ", new offset %"
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G_GINT64_FORMAT, identity->prev_offset_end,
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GST_BUFFER_OFFSET (buf));
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}
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}
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/* update prev values */
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identity->prev_timestamp = GST_BUFFER_TIMESTAMP (buf);
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identity->prev_duration = GST_BUFFER_DURATION (buf);
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identity->prev_offset_end = GST_BUFFER_OFFSET_END (buf);
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}
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if (identity->error_after >= 0) {
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identity->error_after--;
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if (identity->error_after == 0) {
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gst_buffer_unref (buf);
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GST_ELEMENT_ERROR (identity, CORE, FAILED,
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(_("Failed after iterations as requested.")), (NULL));
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return;
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}
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}
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if (identity->drop_probability > 0.0) {
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if ((gfloat) (1.0 * rand () / (RAND_MAX)) < identity->drop_probability) {
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g_free (identity->last_message);
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identity->last_message =
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g_strdup_printf ("dropping ******* (%s:%s)i (%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_DEBUG_PAD_NAME (identity->sinkpad), 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 (identity), "last-message");
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gst_buffer_unref (buf);
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return;
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}
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}
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if (identity->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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for (i = identity->duplicate; i; i--) {
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GstClockTime time;
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if (!identity->silent) {
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g_free (identity->last_message);
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identity->last_message =
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g_strdup_printf ("chain ******* (%s:%s)i (%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_DEBUG_PAD_NAME (identity->sinkpad), 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 (identity), "last-message");
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}
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time = GST_BUFFER_TIMESTAMP (buf);
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if (identity->datarate > 0) {
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time = identity->bytes_handled * GST_SECOND / identity->datarate;
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GST_BUFFER_TIMESTAMP (buf) = time;
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GST_BUFFER_DURATION (buf) =
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GST_BUFFER_SIZE (buf) * GST_SECOND / identity->datarate;
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}
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g_signal_emit (G_OBJECT (identity), gst_identity_signals[SIGNAL_HANDOFF], 0,
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buf);
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if (i > 1)
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gst_buffer_ref (buf);
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if (identity->sync) {
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if (identity->clock) {
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gst_element_wait (GST_ELEMENT (identity), time);
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}
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}
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identity->bytes_handled += GST_BUFFER_SIZE (buf);
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gst_pad_push (identity->srcpad, GST_DATA (buf));
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if (identity->sleep_time)
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g_usleep (identity->sleep_time);
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}
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}
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static void
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gst_identity_loop (GstElement * element)
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{
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GstIdentity *identity;
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GstBuffer *buf;
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g_return_if_fail (element != NULL);
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g_return_if_fail (GST_IS_IDENTITY (element));
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identity = GST_IDENTITY (element);
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buf = GST_BUFFER (gst_pad_pull (identity->sinkpad));
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if (GST_IS_EVENT (buf)) {
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GstEvent *event = GST_EVENT (buf);
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if (GST_EVENT_IS_INTERRUPT (event)) {
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gst_event_unref (event);
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} else {
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gst_pad_event_default (identity->sinkpad, event);
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}
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} else {
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gst_identity_chain (identity->sinkpad, GST_DATA (buf));
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}
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}
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static void
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gst_identity_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstIdentity *identity;
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/* it's not null if we got it, but it might not be ours */
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g_return_if_fail (GST_IS_IDENTITY (object));
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identity = GST_IDENTITY (object);
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switch (prop_id) {
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case ARG_LOOP_BASED:
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identity->loop_based = g_value_get_boolean (value);
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if (identity->loop_based) {
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gst_element_set_loop_function (GST_ELEMENT (identity),
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gst_identity_loop);
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gst_pad_set_chain_function (identity->sinkpad, NULL);
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} else {
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gst_pad_set_chain_function (identity->sinkpad, gst_identity_chain);
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gst_element_set_loop_function (GST_ELEMENT (identity), NULL);
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}
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break;
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case ARG_SLEEP_TIME:
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identity->sleep_time = g_value_get_uint (value);
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break;
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case ARG_SILENT:
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identity->silent = g_value_get_boolean (value);
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break;
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case ARG_DUPLICATE:
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identity->duplicate = g_value_get_uint (value);
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break;
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case ARG_DUMP:
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identity->dump = g_value_get_boolean (value);
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break;
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case ARG_ERROR_AFTER:
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identity->error_after = g_value_get_int (value);
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break;
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case ARG_DROP_PROBABILITY:
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identity->drop_probability = g_value_get_float (value);
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break;
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case ARG_DATARATE:
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identity->datarate = g_value_get_int (value);
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break;
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case ARG_SYNC:
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identity->sync = g_value_get_boolean (value);
|
|
break;
|
|
case ARG_CHECK_PERFECT:
|
|
identity->check_perfect = g_value_get_boolean (value);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_identity_get_property (GObject * object, guint prop_id, GValue * value,
|
|
GParamSpec * pspec)
|
|
{
|
|
GstIdentity *identity;
|
|
|
|
/* it's not null if we got it, but it might not be ours */
|
|
g_return_if_fail (GST_IS_IDENTITY (object));
|
|
|
|
identity = GST_IDENTITY (object);
|
|
|
|
switch (prop_id) {
|
|
case ARG_LOOP_BASED:
|
|
g_value_set_boolean (value, identity->loop_based);
|
|
break;
|
|
case ARG_SLEEP_TIME:
|
|
g_value_set_uint (value, identity->sleep_time);
|
|
break;
|
|
case ARG_DUPLICATE:
|
|
g_value_set_uint (value, identity->duplicate);
|
|
break;
|
|
case ARG_ERROR_AFTER:
|
|
g_value_set_int (value, identity->error_after);
|
|
break;
|
|
case ARG_DROP_PROBABILITY:
|
|
g_value_set_float (value, identity->drop_probability);
|
|
break;
|
|
case ARG_DATARATE:
|
|
g_value_set_int (value, identity->datarate);
|
|
break;
|
|
case ARG_SILENT:
|
|
g_value_set_boolean (value, identity->silent);
|
|
break;
|
|
case ARG_DUMP:
|
|
g_value_set_boolean (value, identity->dump);
|
|
break;
|
|
case ARG_LAST_MESSAGE:
|
|
g_value_set_string (value, identity->last_message);
|
|
break;
|
|
case ARG_SYNC:
|
|
g_value_set_boolean (value, identity->sync);
|
|
break;
|
|
case ARG_CHECK_PERFECT:
|
|
g_value_set_boolean (value, identity->check_perfect);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static GstElementStateReturn
|
|
gst_identity_change_state (GstElement * element)
|
|
{
|
|
GstIdentity *identity;
|
|
|
|
g_return_val_if_fail (GST_IS_IDENTITY (element), GST_STATE_FAILURE);
|
|
|
|
identity = GST_IDENTITY (element);
|
|
|
|
switch (GST_STATE_TRANSITION (element)) {
|
|
case GST_STATE_NULL_TO_READY:
|
|
break;
|
|
case GST_STATE_READY_TO_PAUSED:
|
|
identity->bytes_handled = 0;
|
|
identity->prev_timestamp = GST_CLOCK_TIME_NONE;
|
|
identity->prev_duration = GST_CLOCK_TIME_NONE;
|
|
identity->prev_offset_end = -1;
|
|
break;
|
|
case GST_STATE_PAUSED_TO_PLAYING:
|
|
case GST_STATE_PLAYING_TO_PAUSED:
|
|
break;
|
|
case GST_STATE_PAUSED_TO_READY:
|
|
g_free (identity->last_message);
|
|
identity->last_message = NULL;
|
|
break;
|
|
case GST_STATE_READY_TO_NULL:
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (GST_ELEMENT_CLASS (parent_class)->change_state)
|
|
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
|
|
|
|
return GST_STATE_SUCCESS;
|
|
}
|