gstreamer/gst/rawparse/gstaudioparse.c
2020-06-06 00:40:42 +02:00

376 lines
12 KiB
C

/* GStreamer
* Copyright (C) 2007 Sebastian Dröge <slomo@circular-chaos.org>
*
* gstaudioparse.c:
*
* 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-audioparse
* @title: audioparse
*
* Converts a byte stream into audio frames.
*
* This element is deprecated. Use #GstRawAudioParse instead.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
/* FIXME 0.11: suppress warnings for deprecated API such as g_value_array stuff
* for now with newer GLib versions (>= 2.31.0) */
#define GLIB_DISABLE_DEPRECATION_WARNINGS
#include <gst/gst.h>
#include <gst/audio/audio.h>
#include "gstaudioparse.h"
#include <string.h>
typedef enum _GstRawAudioParseFormat GstRawAudioParseFormat;
enum _GstRawAudioParseFormat
{
GST_RAW_AUDIO_PARSE_FORMAT_PCM,
GST_RAW_AUDIO_PARSE_FORMAT_MULAW,
GST_RAW_AUDIO_PARSE_FORMAT_ALAW
};
static GstStaticPadTemplate static_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
#define GST_UNALIGNED_RAW_AUDIO_CAPS \
"audio/x-unaligned-raw" \
", format = (string) " GST_AUDIO_FORMATS_ALL \
", rate = (int) [ 1, MAX ]" \
", channels = (int) [ 1, MAX ]" \
", layout = (string) { interleaved, non-interleaved }"
static GstStaticPadTemplate static_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_AUDIO_CAPS_MAKE (GST_AUDIO_FORMATS_ALL)
", layout = (string) { interleaved, non-interleaved }; "
GST_UNALIGNED_RAW_AUDIO_CAPS "; "
"audio/x-alaw, rate=(int)[1,MAX], channels=(int)[1,MAX]; "
"audio/x-mulaw, rate=(int)[1,MAX], channels=(int)[1,MAX]")
);
typedef enum
{
GST_AUDIO_PARSE_FORMAT_RAW,
GST_AUDIO_PARSE_FORMAT_MULAW,
GST_AUDIO_PARSE_FORMAT_ALAW
} GstAudioParseFormat;
static void gst_audio_parse_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_audio_parse_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
GST_DEBUG_CATEGORY_STATIC (gst_audio_parse_debug);
#define GST_CAT_DEFAULT gst_audio_parse_debug
enum
{
PROP_0,
PROP_FORMAT,
PROP_RAW_FORMAT,
PROP_RATE,
PROP_CHANNELS,
PROP_INTERLEAVED,
PROP_CHANNEL_POSITIONS,
PROP_USE_SINK_CAPS
};
#define GST_AUDIO_PARSE_FORMAT (gst_audio_parse_format_get_type ())
static GType
gst_audio_parse_format_get_type (void)
{
static GType audio_parse_format_type = 0;
static const GEnumValue format_types[] = {
{GST_AUDIO_PARSE_FORMAT_RAW, "Raw", "raw"},
{GST_AUDIO_PARSE_FORMAT_ALAW, "A-Law", "alaw"},
{GST_AUDIO_PARSE_FORMAT_MULAW, "\302\265-Law", "mulaw"},
{0, NULL, NULL}
};
if (!audio_parse_format_type) {
audio_parse_format_type =
g_enum_register_static ("GstAudioParseFormat", format_types);
}
return audio_parse_format_type;
}
#define gst_audio_parse_parent_class parent_class
G_DEFINE_TYPE (GstAudioParse, gst_audio_parse, GST_TYPE_BIN);
static void
gst_audio_parse_class_init (GstAudioParseClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
gobject_class->set_property = gst_audio_parse_set_property;
gobject_class->get_property = gst_audio_parse_get_property;
g_object_class_install_property (gobject_class, PROP_FORMAT,
g_param_spec_enum ("format", "Format",
"Format of audio samples in raw stream", GST_AUDIO_PARSE_FORMAT,
GST_AUDIO_PARSE_FORMAT_RAW,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_RAW_FORMAT,
g_param_spec_enum ("raw-format", "Raw Format",
"Format of audio samples in raw stream", GST_TYPE_AUDIO_FORMAT,
GST_AUDIO_FORMAT_S16, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_RATE,
g_param_spec_int ("rate", "Rate", "Rate of audio samples in raw stream",
1, INT_MAX, 44100, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_CHANNELS,
g_param_spec_int ("channels", "Channels",
"Number of channels in raw stream", 1, 64, 2,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_INTERLEAVED,
g_param_spec_boolean ("interleaved", "Interleaved Layout",
"True if audio has interleaved layout", TRUE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_CHANNEL_POSITIONS,
g_param_spec_value_array ("channel-positions", "Channel positions",
"Channel positions used on the output",
g_param_spec_enum ("channel-position", "Channel position",
"Channel position of the n-th input",
GST_TYPE_AUDIO_CHANNEL_POSITION,
GST_AUDIO_CHANNEL_POSITION_NONE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS),
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_USE_SINK_CAPS,
g_param_spec_boolean ("use-sink-caps", "Use sink caps",
"Use the sink caps for the format, only performing timestamping",
FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_element_class_set_static_metadata (gstelement_class, "Audio Parse",
"Filter/Audio",
"Converts stream into audio frames (deprecated: use rawaudioparse instead)",
"Sebastian Dröge <sebastian.droege@collabora.co.uk>");
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&static_sink_template));
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&static_src_template));
GST_DEBUG_CATEGORY_INIT (gst_audio_parse_debug, "audioparse", 0,
"audioparse element");
gst_type_mark_as_plugin_api (GST_AUDIO_PARSE_FORMAT, 0);
}
static void
gst_audio_parse_init (GstAudioParse * ap)
{
GstPad *inner_pad;
GstPad *ghostpad;
ap->rawaudioparse =
gst_element_factory_make ("rawaudioparse", "inner_rawaudioparse");
g_assert (ap->rawaudioparse != NULL);
gst_bin_add (GST_BIN (ap), ap->rawaudioparse);
inner_pad = gst_element_get_static_pad (ap->rawaudioparse, "sink");
ghostpad =
gst_ghost_pad_new_from_template ("sink", inner_pad,
gst_element_class_get_pad_template (GST_ELEMENT_GET_CLASS (ap), "sink"));
gst_element_add_pad (GST_ELEMENT (ap), ghostpad);
gst_object_unref (GST_OBJECT (inner_pad));
inner_pad = gst_element_get_static_pad (ap->rawaudioparse, "src");
ghostpad =
gst_ghost_pad_new_from_template ("src", inner_pad,
gst_element_class_get_pad_template (GST_ELEMENT_GET_CLASS (ap), "src"));
gst_element_add_pad (GST_ELEMENT (ap), ghostpad);
gst_object_unref (GST_OBJECT (inner_pad));
}
static void
gst_audio_parse_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstAudioParse *ap = GST_AUDIO_PARSE (object);
switch (prop_id) {
case PROP_FORMAT:{
GstRawAudioParseFormat raw_parse_format;
switch (g_value_get_enum (value)) {
case GST_AUDIO_PARSE_FORMAT_RAW:
raw_parse_format = GST_RAW_AUDIO_PARSE_FORMAT_PCM;
break;
case GST_AUDIO_PARSE_FORMAT_MULAW:
raw_parse_format = GST_RAW_AUDIO_PARSE_FORMAT_MULAW;
break;
case GST_AUDIO_PARSE_FORMAT_ALAW:
raw_parse_format = GST_RAW_AUDIO_PARSE_FORMAT_ALAW;
break;
default:
g_assert_not_reached ();
break;
}
g_object_set (G_OBJECT (ap->rawaudioparse), "format", raw_parse_format,
NULL);
break;
}
case PROP_RAW_FORMAT:
g_object_set (G_OBJECT (ap->rawaudioparse), "pcm-format",
g_value_get_enum (value), NULL);
break;
case PROP_RATE:
g_object_set (G_OBJECT (ap->rawaudioparse), "sample-rate",
g_value_get_int (value), NULL);
break;
case PROP_CHANNELS:
g_object_set (G_OBJECT (ap->rawaudioparse), "num-channels",
g_value_get_int (value), NULL);
break;
case PROP_INTERLEAVED:
g_object_set (G_OBJECT (ap->rawaudioparse), "interleaved",
g_value_get_boolean (value), NULL);
break;
case PROP_CHANNEL_POSITIONS:
g_object_set (G_OBJECT (ap->rawaudioparse), "channel-positions",
g_value_get_boxed (value), NULL);
break;
case PROP_USE_SINK_CAPS:
g_object_set (G_OBJECT (ap->rawaudioparse), "use-sink-caps",
g_value_get_boolean (value), NULL);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_audio_parse_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstAudioParse *ap = GST_AUDIO_PARSE (object);
switch (prop_id) {
case PROP_FORMAT:{
GstRawAudioParseFormat raw_parse_format;
GstAudioParseFormat format;
g_object_get (G_OBJECT (ap->rawaudioparse), "format", &raw_parse_format,
NULL);
switch (raw_parse_format) {
case GST_RAW_AUDIO_PARSE_FORMAT_PCM:
format = GST_AUDIO_PARSE_FORMAT_RAW;
break;
case GST_RAW_AUDIO_PARSE_FORMAT_MULAW:
format = GST_AUDIO_PARSE_FORMAT_MULAW;
break;
case GST_RAW_AUDIO_PARSE_FORMAT_ALAW:
format = GST_AUDIO_PARSE_FORMAT_ALAW;
break;
default:
g_assert_not_reached ();
break;
}
g_value_set_enum (value, format);
break;
}
case PROP_RAW_FORMAT:{
GstAudioFormat format;
g_object_get (G_OBJECT (ap->rawaudioparse), "pcm-format", &format, NULL);
g_value_set_enum (value, format);
break;
}
case PROP_RATE:{
gint sample_rate;
g_object_get (G_OBJECT (ap->rawaudioparse), "sample-rate", &sample_rate,
NULL);
g_value_set_int (value, sample_rate);
break;
}
case PROP_CHANNELS:{
gint num_channels;
g_object_get (G_OBJECT (ap->rawaudioparse), "num-channels", &num_channels,
NULL);
g_value_set_int (value, num_channels);
break;
}
case PROP_INTERLEAVED:{
gboolean interleaved;
g_object_get (G_OBJECT (ap->rawaudioparse), "interleaved", &interleaved,
NULL);
g_value_set_boolean (value, interleaved);
break;
}
case PROP_CHANNEL_POSITIONS:{
gpointer channel_positions;
g_object_get (G_OBJECT (ap->rawaudioparse), "channel-positions",
&channel_positions, NULL);
g_value_set_boxed (value, channel_positions);
break;
}
case PROP_USE_SINK_CAPS:{
gboolean use_sink_caps;
g_object_get (G_OBJECT (ap->rawaudioparse), "use-sink-caps",
&use_sink_caps, NULL);
g_value_set_boolean (value, use_sink_caps);
break;
}
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}