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debugutils: Add fakeaudiosink element

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This element can be useful for CI purposes on machines not running any system
audio daemon. The element implements the GstStreamVolume interface.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2125>
This commit is contained in:
Philippe Normand 2021-03-30 14:40:53 +01:00 committed by GStreamer Marge Bot
parent f992c521c3
commit 933ebba435
5 changed files with 663 additions and 1 deletions
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333
docs/plugins/gst_plugins_cache.json
View file

@ -8462,6 +8462,339 @@
},
"rank": "none"
},
"fakeaudiosink": {
"author": "Philippe Normand <philn@igalia.com>",
"description": "Fake audio renderer",
"hierarchy": [
"GstFakeAudioSink",
"GstBin",
"GstElement",
"GstObject",
"GInitiallyUnowned",
"GObject"
],
"interfaces": [
"GstChildProxy",
"GstStreamVolume"
],
"klass": "Audio/Sink",
"long-name": "Fake Audio Sink",
"pad-templates": {
"sink": {
"caps": "audio/x-raw:\n format: { F64LE, F64BE, F32LE, F32BE, S32LE, S32BE, U32LE, U32BE, S24_32LE, S24_32BE, U24_32LE, U24_32BE, S24LE, S24BE, U24LE, U24BE, S20LE, S20BE, U20LE, U20BE, S18LE, S18BE, U18LE, U18BE, S16LE, S16BE, U16LE, U16BE, S8, U8 }\n rate: [ 1, 2147483647 ]\n channels: [ 1, 2147483647 ]\n",
"direction": "sink",
"presence": "always"
}
},
"properties": {
"async": {
"blurb": "Go asynchronously to PAUSED",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "true",
"mutable": "null",
"readable": true,
"type": "gboolean",
"writable": true
},
"blocksize": {
"blurb": "Size in bytes to pull per buffer (0 = default)",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "4096",
"max": "-1",
"min": "0",
"mutable": "null",
"readable": true,
"type": "guint",
"writable": true
},
"can-activate-pull": {
"blurb": "Can activate in pull mode",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "false",
"mutable": "null",
"readable": true,
"type": "gboolean",
"writable": true
},
"can-activate-push": {
"blurb": "Can activate in push mode",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "true",
"mutable": "null",
"readable": true,
"type": "gboolean",
"writable": true
},
"drop-out-of-segment": {
"blurb": "Drop and don't render / hand off out-of-segment buffers",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "true",
"mutable": "null",
"readable": true,
"type": "gboolean",
"writable": true
},
"dump": {
"blurb": "Dump buffer contents to stdout",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "false",
"mutable": "playing",
"readable": true,
"type": "gboolean",
"writable": true
},
"enable-last-sample": {
"blurb": "Enable the last-sample property",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "true",
"mutable": "null",
"readable": true,
"type": "gboolean",
"writable": true
},
"last-message": {
"blurb": "The message describing current status",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "NULL",
"mutable": "null",
"readable": true,
"type": "gchararray",
"writable": false
},
"last-sample": {
"blurb": "The last sample received in the sink",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"mutable": "null",
"readable": true,
"type": "GstSample",
"writable": false
},
"max-bitrate": {
"blurb": "The maximum bits per second to render (0 = disabled)",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "0",
"max": "18446744073709551615",
"min": "0",
"mutable": "null",
"readable": true,
"type": "guint64",
"writable": true
},
"max-lateness": {
"blurb": "Maximum number of nanoseconds that a buffer can be late before it is dropped (-1 unlimited)",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "18446744073709551615",
"max": "9223372036854775807",
"min": "-1",
"mutable": "null",
"readable": true,
"type": "gint64",
"writable": true
},
"mute": {
"blurb": "Mute the audio channel without changing the volume",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "false",
"mutable": "null",
"readable": true,
"type": "gboolean",
"writable": true
},
"num-buffers": {
"blurb": "Number of buffers to accept going EOS",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "-1",
"max": "2147483647",
"min": "-1",
"mutable": "null",
"readable": true,
"type": "gint",
"writable": true
},
"processing-deadline": {
"blurb": "Maximum processing time for a buffer in nanoseconds",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "20000000",
"max": "18446744073709551615",
"min": "0",
"mutable": "null",
"readable": true,
"type": "guint64",
"writable": true
},
"qos": {
"blurb": "Generate Quality-of-Service events upstream",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "true",
"mutable": "null",
"readable": true,
"type": "gboolean",
"writable": true
},
"render-delay": {
"blurb": "Additional render delay of the sink in nanoseconds",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "0",
"max": "18446744073709551615",
"min": "0",
"mutable": "null",
"readable": true,
"type": "guint64",
"writable": true
},
"signal-handoffs": {
"blurb": "Send a signal before unreffing the buffer",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "false",
"mutable": "null",
"readable": true,
"type": "gboolean",
"writable": true
},
"silent": {
"blurb": "Don't produce last_message events",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "true",
"mutable": "playing",
"readable": true,
"type": "gboolean",
"writable": true
},
"state-error": {
"blurb": "Generate a state change error",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "none (0)",
"mutable": "null",
"readable": true,
"type": "GstFakeSinkStateError",
"writable": true
},
"stats": {
"blurb": "Sink Statistics",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "application/x-gst-base-sink-stats, average-rate=(double)0, dropped=(guint64)0, rendered=(guint64)0;",
"mutable": "null",
"readable": true,
"type": "GstStructure",
"writable": false
},
"sync": {
"blurb": "Sync on the clock",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "true",
"mutable": "null",
"readable": true,
"type": "gboolean",
"writable": true
},
"throttle-time": {
"blurb": "The time to keep between rendered buffers (0 = disabled)",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "0",
"max": "18446744073709551615",
"min": "0",
"mutable": "null",
"readable": true,
"type": "guint64",
"writable": true
},
"ts-offset": {
"blurb": "Timestamp offset in nanoseconds",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "0",
"max": "9223372036854775807",
"min": "-9223372036854775808",
"mutable": "null",
"readable": true,
"type": "gint64",
"writable": true
},
"volume": {
"blurb": "The audio volume, 1.0=100%%",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "1",
"max": "10",
"min": "0",
"mutable": "null",
"readable": true,
"type": "gdouble",
"writable": true
}
},
"rank": "none"
},
"fakevideosink": {
"author": "Nicolas Dufresne <nicolas.dufresne@collabora.com>",
"description": "Fake video display that allows zero-copy",

3
gst/debugutils/debugutilsbad.c
View file

@ -30,6 +30,7 @@ GType gst_compare_get_type (void);
GType gst_debug_spy_get_type (void);
GType gst_error_ignore_get_type (void);
GType gst_watchdog_get_type (void);
GType gst_fake_audio_sink_get_type (void);
GType gst_fake_video_sink_get_type (void);
GType gst_test_src_bin_get_type (void);
GType gst_clock_select_get_type (void);
@ -51,6 +52,8 @@ plugin_init (GstPlugin * plugin)
gst_watchdog_get_type ());
gst_element_register (plugin, "errorignore", GST_RANK_NONE,
gst_error_ignore_get_type ());
gst_element_register (plugin, "fakeaudiosink", GST_RANK_NONE,
gst_fake_audio_sink_get_type ());
gst_element_register (plugin, "fakevideosink", GST_RANK_NONE,
gst_fake_video_sink_get_type ());
gst_element_register (plugin, "testsrcbin", GST_RANK_NONE,

262
gst/debugutils/gstfakeaudiosink.c Normal file
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@ -0,0 +1,262 @@
/*
* GStreamer
* Copyright (C) 2017 Collabora Inc.
* Copyright (C) 2021 Igalia S.L.
* Author: Philippe Normand <philn@igalia.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/**
* SECTION:element-fakeaudiosink
* @title: fakeaudiosink
*
* This element is the same as fakesink but will pretend to act as an audio sink
* supporting the `GstStreamVolume` interface. This is useful for throughput
* testing while creating a new pipeline or for CI purposes on machines not
* running a real audio daemon.
*
* ## Example launch lines
* |[
* gst-launch-1.0 audiotestsrc ! fakeaudiosink
* ]|
*
* Since: 1.20
*/
#include "gstfakeaudiosink.h"
#include <gst/audio/audio.h>
enum
{
PROP_0,
PROP_VOLUME,
PROP_MUTE,
PROP_LAST
};
static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_AUDIO_CAPS_MAKE (GST_AUDIO_FORMATS_ALL)));
G_DEFINE_TYPE_WITH_CODE (GstFakeAudioSink, gst_fake_audio_sink, GST_TYPE_BIN,
G_IMPLEMENT_INTERFACE (GST_TYPE_STREAM_VOLUME, NULL););
/* TODO complete the types and make this an utility */
static void
gst_fake_audio_sink_proxy_properties (GstFakeAudioSink * self,
GstElement * child)
{
static gsize initialized = 0;
if (g_once_init_enter (&initialized)) {
GObjectClass *object_class;
GParamSpec **properties;
guint n_properties, i;
object_class = G_OBJECT_CLASS (GST_FAKE_AUDIO_SINK_GET_CLASS (self));
properties = g_object_class_list_properties (G_OBJECT_GET_CLASS (child),
&n_properties);
for (i = 0; i < n_properties; i++) {
guint property_id = i + PROP_LAST;
if (properties[i]->owner_type != G_OBJECT_TYPE (child) &&
properties[i]->owner_type != GST_TYPE_BASE_SINK)
continue;
if (G_IS_PARAM_SPEC_BOOLEAN (properties[i])) {
GParamSpecBoolean *prop = G_PARAM_SPEC_BOOLEAN (properties[i]);
g_object_class_install_property (object_class, property_id,
g_param_spec_boolean (g_param_spec_get_name (properties[i]),
g_param_spec_get_nick (properties[i]),
g_param_spec_get_blurb (properties[i]),
prop->default_value, properties[i]->flags));
} else if (G_IS_PARAM_SPEC_INT (properties[i])) {
GParamSpecInt *prop = G_PARAM_SPEC_INT (properties[i]);
g_object_class_install_property (object_class, property_id,
g_param_spec_int (g_param_spec_get_name (properties[i]),
g_param_spec_get_nick (properties[i]),
g_param_spec_get_blurb (properties[i]),
prop->minimum, prop->maximum, prop->default_value,
properties[i]->flags));
} else if (G_IS_PARAM_SPEC_UINT (properties[i])) {
GParamSpecUInt *prop = G_PARAM_SPEC_UINT (properties[i]);
g_object_class_install_property (object_class, property_id,
g_param_spec_uint (g_param_spec_get_name (properties[i]),
g_param_spec_get_nick (properties[i]),
g_param_spec_get_blurb (properties[i]),
prop->minimum, prop->maximum, prop->default_value,
properties[i]->flags));
} else if (G_IS_PARAM_SPEC_INT64 (properties[i])) {
GParamSpecInt64 *prop = G_PARAM_SPEC_INT64 (properties[i]);
g_object_class_install_property (object_class, property_id,
g_param_spec_int64 (g_param_spec_get_name (properties[i]),
g_param_spec_get_nick (properties[i]),
g_param_spec_get_blurb (properties[i]),
prop->minimum, prop->maximum, prop->default_value,
properties[i]->flags));
} else if (G_IS_PARAM_SPEC_UINT64 (properties[i])) {
GParamSpecUInt64 *prop = G_PARAM_SPEC_UINT64 (properties[i]);
g_object_class_install_property (object_class, property_id,
g_param_spec_uint64 (g_param_spec_get_name (properties[i]),
g_param_spec_get_nick (properties[i]),
g_param_spec_get_blurb (properties[i]),
prop->minimum, prop->maximum, prop->default_value,
properties[i]->flags));
} else if (G_IS_PARAM_SPEC_ENUM (properties[i])) {
GParamSpecEnum *prop = G_PARAM_SPEC_ENUM (properties[i]);
g_object_class_install_property (object_class, property_id,
g_param_spec_enum (g_param_spec_get_name (properties[i]),
g_param_spec_get_nick (properties[i]),
g_param_spec_get_blurb (properties[i]),
properties[i]->value_type, prop->default_value,
properties[i]->flags));
} else if (G_IS_PARAM_SPEC_STRING (properties[i])) {
GParamSpecString *prop = G_PARAM_SPEC_STRING (properties[i]);
g_object_class_install_property (object_class, property_id,
g_param_spec_string (g_param_spec_get_name (properties[i]),
g_param_spec_get_nick (properties[i]),
g_param_spec_get_blurb (properties[i]),
prop->default_value, properties[i]->flags));
} else if (G_IS_PARAM_SPEC_BOXED (properties[i])) {
g_object_class_install_property (object_class, property_id,
g_param_spec_boxed (g_param_spec_get_name (properties[i]),
g_param_spec_get_nick (properties[i]),
g_param_spec_get_blurb (properties[i]),
properties[i]->value_type, properties[i]->flags));
}
}
g_free (properties);
g_once_init_leave (&initialized, 1);
}
}
static void
gst_fake_audio_sink_init (GstFakeAudioSink * self)
{
GstElement *child;
GstPadTemplate *template = gst_static_pad_template_get (&sink_factory);
self->volume = 1.0;
self->mute = FALSE;
child = gst_element_factory_make ("fakesink", "sink");
if (child) {
GstPad *sink_pad = gst_element_get_static_pad (child, "sink");
GstPad *ghost_pad;
/* mimic GstAudioSink base class */
g_object_set (child, "qos", TRUE, "sync", TRUE, NULL);
gst_bin_add (GST_BIN_CAST (self), child);
ghost_pad = gst_ghost_pad_new_from_template ("sink", sink_pad, template);
gst_object_unref (template);
gst_element_add_pad (GST_ELEMENT_CAST (self), ghost_pad);
gst_object_unref (sink_pad);
self->child = child;
gst_fake_audio_sink_proxy_properties (self, child);
} else {
g_warning ("Check your GStreamer installation, "
"core element 'fakesink' is missing.");
}
}
static void
gst_fake_audio_sink_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec)
{
GstFakeAudioSink *self = GST_FAKE_AUDIO_SINK (object);
switch (property_id) {
case PROP_VOLUME:
g_value_set_double (value, self->volume);
break;
case PROP_MUTE:
g_value_set_boolean (value, self->mute);
break;
default:
g_object_get_property (G_OBJECT (self->child), pspec->name, value);
break;
}
}
static void
gst_fake_audio_sink_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
{
GstFakeAudioSink *self = GST_FAKE_AUDIO_SINK (object);
switch (property_id) {
case PROP_VOLUME:
self->volume = g_value_get_double (value);
break;
case PROP_MUTE:
self->mute = g_value_get_boolean (value);
break;
default:
g_object_set_property (G_OBJECT (self->child), pspec->name, value);
break;
}
}
static void
gst_fake_audio_sink_class_init (GstFakeAudioSinkClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->get_property = gst_fake_audio_sink_get_property;
object_class->set_property = gst_fake_audio_sink_set_property;
/**
* GstFakeAudioSink:volume
*
* Control the audio volume
*
* Since: 1.20
*/
g_object_class_install_property (object_class, PROP_VOLUME,
g_param_spec_double ("volume", "Volume", "The audio volume, 1.0=100%",
0, 10, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstFakeAudioSink:mute
*
* Control the mute state
*
* Since: 1.20
*/
g_object_class_install_property (object_class, PROP_MUTE,
g_param_spec_boolean ("mute", "Mute",
"Mute the audio channel without changing the volume", FALSE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_element_class_add_static_pad_template (element_class, &sink_factory);
gst_element_class_set_static_metadata (element_class, "Fake Audio Sink",
"Audio/Sink", "Fake audio renderer",
"Philippe Normand <philn@igalia.com>");
}

63
gst/debugutils/gstfakeaudiosink.h Normal file
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@ -0,0 +1,63 @@
/*
* GStreamer
* Copyright (C) 2017 Collabora Inc.
* Copyright (C) 2021 Igalia S.L.
* Author: Philippe Normand <philn@igalia.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef _GST_FAKE_AUDIO_SINK_H_
#define _GST_FAKE_AUDIO_SINK_H_
#include <gst/gst.h>
#define GST_TYPE_FAKE_AUDIO_SINK \
(gst_fake_audio_sink_get_type())
#define GST_FAKE_AUDIO_SINK(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_FAKE_AUDIO_SINK, GstFakeAudioSink))
#define GST_FAKE_AUDIO_SINK_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_FAKE_AUDIO_SINK, GstFakeAudioSinkClass))
#define GST_FAKE_AUDIO_SINK_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj), GST_TYPE_FAKE_AUDIO_SINK, GstFakeAudioSinkClass))
#define GST_IS_FAKE_AUDIO_SINK(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_FAKE_AUDIO_SINK))
#define GST_IS_FAKE_AUDIO_SINK_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_FAKE_AUDIO_SINK))
G_BEGIN_DECLS
typedef struct _GstFakeAudioSink GstFakeAudioSink;
typedef struct _GstFakeAudioSinkClass GstFakeAudioSinkClass;
struct _GstFakeAudioSink
{
GstBin parent;
GstElement *child;
gdouble volume;
gboolean mute;
};
struct _GstFakeAudioSinkClass
{
GstBinClass parent;
};
GType gst_fake_audio_sink_get_type (void);
G_END_DECLS
#endif

3
gst/debugutils/meson.build
View file

@ -6,6 +6,7 @@ debugutilsbad_sources = [
'gstchecksumsink.c',
'gstchopmydata.c',
'gstcompare.c',
'gstfakeaudiosink.c',
'gstfakevideosink.c',
'gstwatchdog.c',
'gsttestsrcbin.c',
@ -16,7 +17,7 @@ gstdebugutilsbad = library('gstdebugutilsbad',
debugutilsbad_sources,
c_args : gst_plugins_bad_args,
include_directories : [configinc],
dependencies : [gstbase_dep, gstvideo_dep, gstnet_dep],
dependencies : [gstbase_dep, gstvideo_dep, gstnet_dep, gstaudio_dep],
install : true,
install_dir : plugins_install_dir,
)