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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.
802 lines
28 KiB
C
802 lines
28 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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* 2005 Wim Taymans <wim@fluendo.com>
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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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/**
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* SECTION:element-identity
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*
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* Dummy element that passes incomming data through unmodified. It has some
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* useful diagnostic functions, such as offset and timestamp checking.
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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 <stdlib.h>
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#include "../../gst/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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/* 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_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_SINGLE_SEGMENT 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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#define DEFAULT_CHECK_IMPERFECT_TIMESTAMP FALSE
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#define DEFAULT_CHECK_IMPERFECT_OFFSET FALSE
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#define DEFAULT_SIGNAL_HANDOFFS TRUE
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enum
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{
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PROP_0,
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PROP_SLEEP_TIME,
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PROP_ERROR_AFTER,
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PROP_DROP_PROBABILITY,
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PROP_DATARATE,
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PROP_SILENT,
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PROP_SINGLE_SEGMENT,
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PROP_LAST_MESSAGE,
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PROP_DUMP,
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PROP_SYNC,
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PROP_CHECK_PERFECT,
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PROP_CHECK_IMPERFECT_TIMESTAMP,
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PROP_CHECK_IMPERFECT_OFFSET,
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PROP_SIGNAL_HANDOFFS
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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, GstBaseTransform,
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GST_TYPE_BASE_TRANSFORM, _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 gboolean gst_identity_event (GstBaseTransform * trans, GstEvent * event);
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static GstFlowReturn gst_identity_transform_ip (GstBaseTransform * trans,
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GstBuffer * buf);
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static GstFlowReturn gst_identity_prepare_output_buffer (GstBaseTransform
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* trans, GstBuffer * in_buf, gint out_size, GstCaps * out_caps,
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GstBuffer ** out_buf);
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static gboolean gst_identity_start (GstBaseTransform * trans);
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static gboolean gst_identity_stop (GstBaseTransform * trans);
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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_set_details_simple (gstelement_class,
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"Identity",
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"Generic",
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"Pass data without modification", "Erik Walthinsen <omega@cse.ogi.edu>");
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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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}
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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_static_rec_mutex_free (&identity->notify_lock);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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/* fixme: do something about this */
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static void
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marshal_VOID__MINIOBJECT (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) (gpointer obj, gpointer arg1,
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gpointer data2);
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register marshalfunc_VOID__MINIOBJECT 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 == 2);
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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) (marshal_data ? marshal_data :
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cc->callback);
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callback (data1, gst_value_get_mini_object (param_values + 1), data2);
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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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GstBaseTransformClass *gstbasetrans_class;
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gobject_class = G_OBJECT_CLASS (klass);
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gstbasetrans_class = GST_BASE_TRANSFORM_CLASS (klass);
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gobject_class->set_property = gst_identity_set_property;
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gobject_class->get_property = gst_identity_get_property;
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g_object_class_install_property (gobject_class, PROP_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 | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_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,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_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,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_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,
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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", "silent", 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_SINGLE_SEGMENT,
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g_param_spec_boolean ("single-segment", "Single Segment",
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"Timestamp buffers and eat newsegments so as to appear as one segment",
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DEFAULT_SINGLE_SEGMENT, 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", "last-message", NULL,
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G_PARAM_READABLE | 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, PROP_SYNC,
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g_param_spec_boolean ("sync", "Synchronize",
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"Synchronize to pipeline clock", DEFAULT_SYNC,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_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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"This only logs in the debug log. This will be deprecated in favor "
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"of the check-imperfect-timestamp/offset properties.",
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DEFAULT_CHECK_PERFECT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class,
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PROP_CHECK_IMPERFECT_TIMESTAMP,
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g_param_spec_boolean ("check-imperfect-timestamp",
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"Check for discontiguous timestamps",
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"Send element messages if timestamps and durations do not match up",
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DEFAULT_CHECK_IMPERFECT_TIMESTAMP,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_CHECK_IMPERFECT_OFFSET,
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g_param_spec_boolean ("check-imperfect-offset",
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"Check for discontiguous offset",
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"Send element messages if offset and offset_end do not match up",
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DEFAULT_CHECK_IMPERFECT_OFFSET,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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/**
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* GstIdentity:signal-handoffs
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*
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* If set to #TRUE, the identity will emit a handoff signal when handling a buffer.
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* When set to #FALSE, no signal will be emited, which might improve performance.
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*
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* Since: 0.10.16
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*/
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g_object_class_install_property (gobject_class, PROP_SIGNAL_HANDOFFS,
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g_param_spec_boolean ("signal-handoffs",
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"Signal handoffs", "Send a signal before pushing the buffer",
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DEFAULT_SIGNAL_HANDOFFS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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/**
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* GstIdentity::handoff:
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* @identity: the identity 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 passing the buffer downstream.
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*/
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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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marshal_VOID__MINIOBJECT, G_TYPE_NONE, 1, GST_TYPE_BUFFER);
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gobject_class->finalize = gst_identity_finalize;
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gstbasetrans_class->event = GST_DEBUG_FUNCPTR (gst_identity_event);
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gstbasetrans_class->transform_ip =
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GST_DEBUG_FUNCPTR (gst_identity_transform_ip);
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gstbasetrans_class->prepare_output_buffer =
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GST_DEBUG_FUNCPTR (gst_identity_prepare_output_buffer);
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gstbasetrans_class->start = GST_DEBUG_FUNCPTR (gst_identity_start);
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gstbasetrans_class->stop = GST_DEBUG_FUNCPTR (gst_identity_stop);
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}
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static void
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gst_identity_init (GstIdentity * identity, GstIdentityClass * g_class)
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{
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identity->sleep_time = DEFAULT_SLEEP_TIME;
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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->single_segment = DEFAULT_SINGLE_SEGMENT;
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identity->sync = DEFAULT_SYNC;
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identity->check_perfect = DEFAULT_CHECK_PERFECT;
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identity->check_imperfect_timestamp = DEFAULT_CHECK_IMPERFECT_TIMESTAMP;
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identity->check_imperfect_offset = DEFAULT_CHECK_IMPERFECT_OFFSET;
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identity->dump = DEFAULT_DUMP;
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identity->last_message = NULL;
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identity->signal_handoffs = DEFAULT_SIGNAL_HANDOFFS;
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g_static_rec_mutex_init (&identity->notify_lock);
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}
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static void
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gst_identity_notify_last_message (GstIdentity * identity)
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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 (&identity->notify_lock);
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g_object_notify ((GObject *) identity, "last_message");
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g_static_rec_mutex_unlock (&identity->notify_lock);
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}
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static gboolean
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gst_identity_event (GstBaseTransform * trans, GstEvent * event)
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{
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GstIdentity *identity;
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gboolean ret = TRUE;
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identity = GST_IDENTITY (trans);
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if (!identity->silent) {
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const GstStructure *s;
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gchar *sstr;
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GST_OBJECT_LOCK (identity);
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g_free (identity->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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identity->last_message =
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g_strdup_printf ("event ******* (%s:%s) E (type: %d, %s) %p",
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GST_DEBUG_PAD_NAME (trans->sinkpad), GST_EVENT_TYPE (event), sstr,
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event);
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g_free (sstr);
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GST_OBJECT_UNLOCK (identity);
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gst_identity_notify_last_message (identity);
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}
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if (identity->single_segment
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&& (GST_EVENT_TYPE (event) == GST_EVENT_NEWSEGMENT)) {
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if (trans->have_newsegment == FALSE) {
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GstEvent *news;
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GstFormat format;
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gst_event_parse_new_segment (event, NULL, NULL, &format, NULL, NULL,
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NULL);
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/* This is the first newsegment, send out a (0, -1) newsegment */
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news = gst_event_new_new_segment (TRUE, 1.0, format, 0, -1, 0);
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gst_pad_event_default (trans->sinkpad, news);
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}
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}
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/* Reset previous timestamp, duration and offsets on NEWSEGMENT
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* to prevent false warnings when checking for perfect streams */
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if (GST_EVENT_TYPE (event) == GST_EVENT_NEWSEGMENT) {
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identity->prev_timestamp = identity->prev_duration = GST_CLOCK_TIME_NONE;
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identity->prev_offset = identity->prev_offset_end = GST_BUFFER_OFFSET_NONE;
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}
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ret = parent_class->event (trans, event);
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if (identity->single_segment
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&& (GST_EVENT_TYPE (event) == GST_EVENT_NEWSEGMENT)) {
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/* eat up segments */
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ret = FALSE;
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}
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return ret;
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}
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static GstFlowReturn
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gst_identity_prepare_output_buffer (GstBaseTransform * trans,
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GstBuffer * in_buf, gint out_size, GstCaps * out_caps, GstBuffer ** out_buf)
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{
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GstIdentity *identity = GST_IDENTITY (trans);
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/* only bother if we may have to alter metadata */
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if (identity->datarate > 0 || identity->single_segment) {
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if (gst_buffer_is_metadata_writable (in_buf))
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*out_buf = gst_buffer_ref (in_buf);
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else {
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/* make even less writable */
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gst_buffer_ref (in_buf);
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/* extra ref is dropped going through the official process */
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*out_buf = gst_buffer_make_metadata_writable (in_buf);
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}
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} else
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*out_buf = gst_buffer_ref (in_buf);
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return GST_FLOW_OK;
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}
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static void
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gst_identity_check_perfect (GstIdentity * identity, GstBuffer * buf)
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{
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GstClockTime timestamp;
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timestamp = GST_BUFFER_TIMESTAMP (buf);
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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 (timestamp != 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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identity->prev_duration != GST_CLOCK_TIME_NONE) {
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guint64 offset, t_expected;
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gint64 dt;
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t_expected = identity->prev_timestamp + identity->prev_duration;
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dt = timestamp - t_expected;
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if (dt != 0) {
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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 " (expected ts %" GST_TIME_FORMAT ", delta=%c%"
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GST_TIME_FORMAT ")", GST_TIME_ARGS (identity->prev_timestamp),
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GST_TIME_ARGS (identity->prev_duration), GST_TIME_ARGS (timestamp),
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GST_TIME_ARGS (t_expected), (dt < 0) ? '-' : '+',
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GST_TIME_ARGS ((dt < 0) ? (GstClockTime) (-dt) : dt));
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}
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offset = GST_BUFFER_OFFSET (buf);
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if (identity->prev_offset_end != offset &&
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identity->prev_offset_end != GST_BUFFER_OFFSET_NONE &&
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offset != GST_BUFFER_OFFSET_NONE) {
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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, offset);
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}
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} else {
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GST_DEBUG_OBJECT (identity, "can't check time-contiguity, no timestamp "
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"and/or duration were set on previous buffer");
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}
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}
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}
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static void
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|
gst_identity_check_imperfect_timestamp (GstIdentity * identity, GstBuffer * buf)
|
|
{
|
|
GstClockTime timestamp = GST_BUFFER_TIMESTAMP (buf);
|
|
|
|
/* invalid timestamp drops us out of check. FIXME: maybe warn ? */
|
|
if (timestamp != GST_CLOCK_TIME_NONE) {
|
|
/* check if we had a previous buffer to compare to */
|
|
if (identity->prev_timestamp != GST_CLOCK_TIME_NONE &&
|
|
identity->prev_duration != GST_CLOCK_TIME_NONE) {
|
|
GstClockTime t_expected;
|
|
GstClockTimeDiff dt;
|
|
|
|
t_expected = identity->prev_timestamp + identity->prev_duration;
|
|
dt = GST_CLOCK_DIFF (t_expected, timestamp);
|
|
if (dt != 0) {
|
|
/*
|
|
* "imperfect-timestamp" bus message:
|
|
* @identity: the identity instance
|
|
* @prev-timestamp: the previous buffer timestamp
|
|
* @prev-duration: the previous buffer duration
|
|
* @prev-offset: the previous buffer offset
|
|
* @prev-offset-end: the previous buffer offset end
|
|
* @cur-timestamp: the current buffer timestamp
|
|
* @cur-duration: the current buffer duration
|
|
* @cur-offset: the current buffer offset
|
|
* @cur-offset-end: the current buffer offset end
|
|
*
|
|
* This bus message gets emitted if the check-imperfect-timestamp
|
|
* property is set and there is a gap in time between the
|
|
* last buffer and the newly received buffer.
|
|
*/
|
|
gst_element_post_message (GST_ELEMENT (identity),
|
|
gst_message_new_element (GST_OBJECT (identity),
|
|
gst_structure_new ("imperfect-timestamp",
|
|
"prev-timestamp", G_TYPE_UINT64,
|
|
identity->prev_timestamp, "prev-duration", G_TYPE_UINT64,
|
|
identity->prev_duration, "prev-offset", G_TYPE_UINT64,
|
|
identity->prev_offset, "prev-offset-end", G_TYPE_UINT64,
|
|
identity->prev_offset_end, "cur-timestamp", G_TYPE_UINT64,
|
|
timestamp, "cur-duration", G_TYPE_UINT64,
|
|
GST_BUFFER_DURATION (buf), "cur-offset", G_TYPE_UINT64,
|
|
GST_BUFFER_OFFSET (buf), "cur-offset-end", G_TYPE_UINT64,
|
|
GST_BUFFER_OFFSET_END (buf), NULL)));
|
|
}
|
|
} else {
|
|
GST_DEBUG_OBJECT (identity, "can't check data-contiguity, no "
|
|
"offset_end was set on previous buffer");
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_identity_check_imperfect_offset (GstIdentity * identity, GstBuffer * buf)
|
|
{
|
|
guint64 offset;
|
|
|
|
offset = GST_BUFFER_OFFSET (buf);
|
|
|
|
if (identity->prev_offset_end != offset &&
|
|
identity->prev_offset_end != GST_BUFFER_OFFSET_NONE &&
|
|
offset != GST_BUFFER_OFFSET_NONE) {
|
|
/*
|
|
* "imperfect-offset" bus message:
|
|
* @identity: the identity instance
|
|
* @prev-timestamp: the previous buffer timestamp
|
|
* @prev-duration: the previous buffer duration
|
|
* @prev-offset: the previous buffer offset
|
|
* @prev-offset-end: the previous buffer offset end
|
|
* @cur-timestamp: the current buffer timestamp
|
|
* @cur-duration: the current buffer duration
|
|
* @cur-offset: the current buffer offset
|
|
* @cur-offset-end: the current buffer offset end
|
|
*
|
|
* This bus message gets emitted if the check-imperfect-offset
|
|
* property is set and there is a gap in offsets between the
|
|
* last buffer and the newly received buffer.
|
|
*/
|
|
gst_element_post_message (GST_ELEMENT (identity),
|
|
gst_message_new_element (GST_OBJECT (identity),
|
|
gst_structure_new ("imperfect-offset", "prev-timestamp",
|
|
G_TYPE_UINT64, identity->prev_timestamp, "prev-duration",
|
|
G_TYPE_UINT64, identity->prev_duration, "prev-offset",
|
|
G_TYPE_UINT64, identity->prev_offset, "prev-offset-end",
|
|
G_TYPE_UINT64, identity->prev_offset_end, "cur-timestamp",
|
|
G_TYPE_UINT64, GST_BUFFER_TIMESTAMP (buf), "cur-duration",
|
|
G_TYPE_UINT64, GST_BUFFER_DURATION (buf), "cur-offset",
|
|
G_TYPE_UINT64, GST_BUFFER_OFFSET (buf), "cur-offset-end",
|
|
G_TYPE_UINT64, GST_BUFFER_OFFSET_END (buf), NULL)));
|
|
} else {
|
|
GST_DEBUG_OBJECT (identity, "can't check offset contiguity, no offset "
|
|
"and/or offset_end were set on previous buffer");
|
|
}
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_identity_transform_ip (GstBaseTransform * trans, GstBuffer * buf)
|
|
{
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
GstIdentity *identity = GST_IDENTITY (trans);
|
|
GstClockTime runtimestamp = G_GINT64_CONSTANT (0);
|
|
|
|
if (identity->check_perfect)
|
|
gst_identity_check_perfect (identity, buf);
|
|
if (identity->check_imperfect_timestamp)
|
|
gst_identity_check_imperfect_timestamp (identity, buf);
|
|
if (identity->check_imperfect_offset)
|
|
gst_identity_check_imperfect_offset (identity, buf);
|
|
|
|
/* update prev values */
|
|
identity->prev_timestamp = GST_BUFFER_TIMESTAMP (buf);
|
|
identity->prev_duration = GST_BUFFER_DURATION (buf);
|
|
identity->prev_offset_end = GST_BUFFER_OFFSET_END (buf);
|
|
identity->prev_offset = GST_BUFFER_OFFSET (buf);
|
|
|
|
if (identity->error_after >= 0) {
|
|
identity->error_after--;
|
|
if (identity->error_after == 0) {
|
|
GST_ELEMENT_ERROR (identity, CORE, FAILED,
|
|
(_("Failed after iterations as requested.")), (NULL));
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
}
|
|
|
|
if (identity->drop_probability > 0.0) {
|
|
if ((gfloat) (1.0 * rand () / (RAND_MAX)) < identity->drop_probability) {
|
|
if (!identity->silent) {
|
|
GST_OBJECT_LOCK (identity);
|
|
g_free (identity->last_message);
|
|
identity->last_message =
|
|
g_strdup_printf
|
|
("dropping ******* (%s:%s)i (%d bytes, timestamp: %"
|
|
GST_TIME_FORMAT ", duration: %" GST_TIME_FORMAT ", offset: %"
|
|
G_GINT64_FORMAT ", offset_end: % " G_GINT64_FORMAT
|
|
", flags: %d) %p", GST_DEBUG_PAD_NAME (trans->sinkpad),
|
|
GST_BUFFER_SIZE (buf), GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)),
|
|
GST_TIME_ARGS (GST_BUFFER_DURATION (buf)), GST_BUFFER_OFFSET (buf),
|
|
GST_BUFFER_OFFSET_END (buf), GST_BUFFER_FLAGS (buf), buf);
|
|
GST_OBJECT_UNLOCK (identity);
|
|
gst_identity_notify_last_message (identity);
|
|
}
|
|
/* return DROPPED to basetransform. */
|
|
return GST_BASE_TRANSFORM_FLOW_DROPPED;
|
|
}
|
|
}
|
|
|
|
if (identity->dump) {
|
|
gst_util_dump_mem (GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
|
|
}
|
|
|
|
if (!identity->silent) {
|
|
GST_OBJECT_LOCK (identity);
|
|
g_free (identity->last_message);
|
|
identity->last_message =
|
|
g_strdup_printf ("chain ******* (%s:%s)i (%d bytes, timestamp: %"
|
|
GST_TIME_FORMAT ", duration: %" GST_TIME_FORMAT ", offset: %"
|
|
G_GINT64_FORMAT ", offset_end: % " G_GINT64_FORMAT ", flags: %d) %p",
|
|
GST_DEBUG_PAD_NAME (trans->sinkpad), GST_BUFFER_SIZE (buf),
|
|
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)),
|
|
GST_TIME_ARGS (GST_BUFFER_DURATION (buf)),
|
|
GST_BUFFER_OFFSET (buf), GST_BUFFER_OFFSET_END (buf),
|
|
GST_BUFFER_FLAGS (buf), buf);
|
|
GST_OBJECT_UNLOCK (identity);
|
|
gst_identity_notify_last_message (identity);
|
|
}
|
|
|
|
if (identity->datarate > 0) {
|
|
GstClockTime time = gst_util_uint64_scale_int (identity->offset,
|
|
GST_SECOND, identity->datarate);
|
|
|
|
GST_BUFFER_TIMESTAMP (buf) = time;
|
|
GST_BUFFER_DURATION (buf) =
|
|
GST_BUFFER_SIZE (buf) * GST_SECOND / identity->datarate;
|
|
}
|
|
|
|
if (identity->signal_handoffs)
|
|
g_signal_emit (identity, gst_identity_signals[SIGNAL_HANDOFF], 0, buf);
|
|
|
|
if (trans->segment.format == GST_FORMAT_TIME)
|
|
runtimestamp = gst_segment_to_running_time (&trans->segment,
|
|
GST_FORMAT_TIME, GST_BUFFER_TIMESTAMP (buf));
|
|
|
|
if ((identity->sync) && (trans->segment.format == GST_FORMAT_TIME)) {
|
|
GstClock *clock;
|
|
|
|
GST_OBJECT_LOCK (identity);
|
|
if ((clock = GST_ELEMENT (identity)->clock)) {
|
|
GstClockReturn cret;
|
|
GstClockTime timestamp;
|
|
|
|
timestamp = runtimestamp + GST_ELEMENT (identity)->base_time;
|
|
|
|
/* save id if we need to unlock */
|
|
/* FIXME: actually unlock this somewhere in the state changes */
|
|
identity->clock_id = gst_clock_new_single_shot_id (clock, timestamp);
|
|
GST_OBJECT_UNLOCK (identity);
|
|
|
|
cret = gst_clock_id_wait (identity->clock_id, NULL);
|
|
|
|
GST_OBJECT_LOCK (identity);
|
|
if (identity->clock_id) {
|
|
gst_clock_id_unref (identity->clock_id);
|
|
identity->clock_id = NULL;
|
|
}
|
|
if (cret == GST_CLOCK_UNSCHEDULED)
|
|
ret = GST_FLOW_UNEXPECTED;
|
|
}
|
|
GST_OBJECT_UNLOCK (identity);
|
|
}
|
|
|
|
identity->offset += GST_BUFFER_SIZE (buf);
|
|
|
|
if (identity->sleep_time && ret == GST_FLOW_OK)
|
|
g_usleep (identity->sleep_time);
|
|
|
|
if (identity->single_segment && (trans->segment.format == GST_FORMAT_TIME)
|
|
&& (ret == GST_FLOW_OK)) {
|
|
GST_BUFFER_TIMESTAMP (buf) = runtimestamp;
|
|
GST_BUFFER_OFFSET (buf) = GST_CLOCK_TIME_NONE;
|
|
GST_BUFFER_OFFSET_END (buf) = GST_CLOCK_TIME_NONE;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
gst_identity_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstIdentity *identity;
|
|
|
|
identity = GST_IDENTITY (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_SLEEP_TIME:
|
|
identity->sleep_time = g_value_get_uint (value);
|
|
break;
|
|
case PROP_SILENT:
|
|
identity->silent = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_SINGLE_SEGMENT:
|
|
identity->single_segment = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_DUMP:
|
|
identity->dump = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_ERROR_AFTER:
|
|
identity->error_after = g_value_get_int (value);
|
|
break;
|
|
case PROP_DROP_PROBABILITY:
|
|
identity->drop_probability = g_value_get_float (value);
|
|
break;
|
|
case PROP_DATARATE:
|
|
identity->datarate = g_value_get_int (value);
|
|
break;
|
|
case PROP_SYNC:
|
|
identity->sync = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_CHECK_PERFECT:
|
|
identity->check_perfect = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_CHECK_IMPERFECT_TIMESTAMP:
|
|
identity->check_imperfect_timestamp = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_CHECK_IMPERFECT_OFFSET:
|
|
identity->check_imperfect_offset = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_SIGNAL_HANDOFFS:
|
|
identity->signal_handoffs = 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;
|
|
|
|
identity = GST_IDENTITY (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_SLEEP_TIME:
|
|
g_value_set_uint (value, identity->sleep_time);
|
|
break;
|
|
case PROP_ERROR_AFTER:
|
|
g_value_set_int (value, identity->error_after);
|
|
break;
|
|
case PROP_DROP_PROBABILITY:
|
|
g_value_set_float (value, identity->drop_probability);
|
|
break;
|
|
case PROP_DATARATE:
|
|
g_value_set_int (value, identity->datarate);
|
|
break;
|
|
case PROP_SILENT:
|
|
g_value_set_boolean (value, identity->silent);
|
|
break;
|
|
case PROP_SINGLE_SEGMENT:
|
|
g_value_set_boolean (value, identity->single_segment);
|
|
break;
|
|
case PROP_DUMP:
|
|
g_value_set_boolean (value, identity->dump);
|
|
break;
|
|
case PROP_LAST_MESSAGE:
|
|
GST_OBJECT_LOCK (identity);
|
|
g_value_set_string (value, identity->last_message);
|
|
GST_OBJECT_UNLOCK (identity);
|
|
break;
|
|
case PROP_SYNC:
|
|
g_value_set_boolean (value, identity->sync);
|
|
break;
|
|
case PROP_CHECK_PERFECT:
|
|
g_value_set_boolean (value, identity->check_perfect);
|
|
break;
|
|
case PROP_CHECK_IMPERFECT_TIMESTAMP:
|
|
g_value_set_boolean (value, identity->check_imperfect_timestamp);
|
|
break;
|
|
case PROP_CHECK_IMPERFECT_OFFSET:
|
|
g_value_set_boolean (value, identity->check_imperfect_offset);
|
|
break;
|
|
case PROP_SIGNAL_HANDOFFS:
|
|
g_value_set_boolean (value, identity->signal_handoffs);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_identity_start (GstBaseTransform * trans)
|
|
{
|
|
GstIdentity *identity;
|
|
|
|
identity = GST_IDENTITY (trans);
|
|
|
|
identity->offset = 0;
|
|
identity->prev_timestamp = GST_CLOCK_TIME_NONE;
|
|
identity->prev_duration = GST_CLOCK_TIME_NONE;
|
|
identity->prev_offset_end = GST_BUFFER_OFFSET_NONE;
|
|
identity->prev_offset = GST_BUFFER_OFFSET_NONE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_identity_stop (GstBaseTransform * trans)
|
|
{
|
|
GstIdentity *identity;
|
|
|
|
identity = GST_IDENTITY (trans);
|
|
|
|
GST_OBJECT_LOCK (identity);
|
|
g_free (identity->last_message);
|
|
identity->last_message = NULL;
|
|
GST_OBJECT_UNLOCK (identity);
|
|
|
|
return TRUE;
|
|
}
|