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376 lines
12 KiB
C
376 lines
12 KiB
C
/* GStreamer
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* Copyright (C) 2007 Sebastian Dröge <slomo@circular-chaos.org>
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*
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* gstaudioparse.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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/**
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* SECTION:element-audioparse
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* @title: audioparse
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*
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* Converts a byte stream into audio frames.
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*
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* This element is deprecated. Use #GstRawAudioParse instead.
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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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/* FIXME 0.11: suppress warnings for deprecated API such as g_value_array stuff
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* for now with newer GLib versions (>= 2.31.0) */
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#define GLIB_DISABLE_DEPRECATION_WARNINGS
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#include <gst/gst.h>
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#include <gst/audio/audio.h>
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#include "gstaudioparse.h"
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#include <string.h>
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typedef enum _GstRawAudioParseFormat GstRawAudioParseFormat;
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enum _GstRawAudioParseFormat
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{
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GST_RAW_AUDIO_PARSE_FORMAT_PCM,
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GST_RAW_AUDIO_PARSE_FORMAT_MULAW,
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GST_RAW_AUDIO_PARSE_FORMAT_ALAW
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};
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static GstStaticPadTemplate static_sink_template =
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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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#define GST_UNALIGNED_RAW_AUDIO_CAPS \
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"audio/x-unaligned-raw" \
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", format = (string) " GST_AUDIO_FORMATS_ALL \
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", rate = (int) [ 1, MAX ]" \
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", channels = (int) [ 1, MAX ]" \
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", layout = (string) { interleaved, non-interleaved }"
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static GstStaticPadTemplate static_src_template =
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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 (GST_AUDIO_CAPS_MAKE (GST_AUDIO_FORMATS_ALL)
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", layout = (string) { interleaved, non-interleaved }; "
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GST_UNALIGNED_RAW_AUDIO_CAPS "; "
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"audio/x-alaw, rate=(int)[1,MAX], channels=(int)[1,MAX]; "
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"audio/x-mulaw, rate=(int)[1,MAX], channels=(int)[1,MAX]")
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);
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typedef enum
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{
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GST_AUDIO_PARSE_FORMAT_RAW,
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GST_AUDIO_PARSE_FORMAT_MULAW,
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GST_AUDIO_PARSE_FORMAT_ALAW
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} GstAudioParseFormat;
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static void gst_audio_parse_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_audio_parse_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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GST_DEBUG_CATEGORY_STATIC (gst_audio_parse_debug);
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#define GST_CAT_DEFAULT gst_audio_parse_debug
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enum
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{
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PROP_0,
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PROP_FORMAT,
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PROP_RAW_FORMAT,
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PROP_RATE,
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PROP_CHANNELS,
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PROP_INTERLEAVED,
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PROP_CHANNEL_POSITIONS,
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PROP_USE_SINK_CAPS
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};
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#define GST_AUDIO_PARSE_FORMAT (gst_audio_parse_format_get_type ())
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static GType
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gst_audio_parse_format_get_type (void)
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{
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static GType audio_parse_format_type = 0;
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static const GEnumValue format_types[] = {
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{GST_AUDIO_PARSE_FORMAT_RAW, "Raw", "raw"},
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{GST_AUDIO_PARSE_FORMAT_ALAW, "A-Law", "alaw"},
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{GST_AUDIO_PARSE_FORMAT_MULAW, "\302\265-Law", "mulaw"},
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{0, NULL, NULL}
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};
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if (!audio_parse_format_type) {
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audio_parse_format_type =
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g_enum_register_static ("GstAudioParseFormat", format_types);
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}
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return audio_parse_format_type;
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}
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#define gst_audio_parse_parent_class parent_class
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G_DEFINE_TYPE (GstAudioParse, gst_audio_parse, GST_TYPE_BIN);
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static void
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gst_audio_parse_class_init (GstAudioParseClass * klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
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gobject_class->set_property = gst_audio_parse_set_property;
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gobject_class->get_property = gst_audio_parse_get_property;
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g_object_class_install_property (gobject_class, PROP_FORMAT,
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g_param_spec_enum ("format", "Format",
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"Format of audio samples in raw stream", GST_AUDIO_PARSE_FORMAT,
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GST_AUDIO_PARSE_FORMAT_RAW,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_RAW_FORMAT,
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g_param_spec_enum ("raw-format", "Raw Format",
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"Format of audio samples in raw stream", GST_TYPE_AUDIO_FORMAT,
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GST_AUDIO_FORMAT_S16, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_RATE,
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g_param_spec_int ("rate", "Rate", "Rate of audio samples in raw stream",
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1, INT_MAX, 44100, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_CHANNELS,
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g_param_spec_int ("channels", "Channels",
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"Number of channels in raw stream", 1, 64, 2,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_INTERLEAVED,
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g_param_spec_boolean ("interleaved", "Interleaved Layout",
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"True if audio has interleaved layout", TRUE,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_CHANNEL_POSITIONS,
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g_param_spec_value_array ("channel-positions", "Channel positions",
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"Channel positions used on the output",
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g_param_spec_enum ("channel-position", "Channel position",
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"Channel position of the n-th input",
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GST_TYPE_AUDIO_CHANNEL_POSITION,
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GST_AUDIO_CHANNEL_POSITION_NONE,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS),
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_USE_SINK_CAPS,
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g_param_spec_boolean ("use-sink-caps", "Use sink caps",
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"Use the sink caps for the format, only performing timestamping",
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FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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gst_element_class_set_static_metadata (gstelement_class, "Audio Parse",
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"Filter/Audio",
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"Converts stream into audio frames (deprecated: use rawaudioparse instead)",
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"Sebastian Dröge <sebastian.droege@collabora.co.uk>");
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&static_sink_template));
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&static_src_template));
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GST_DEBUG_CATEGORY_INIT (gst_audio_parse_debug, "audioparse", 0,
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"audioparse element");
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gst_type_mark_as_plugin_api (GST_AUDIO_PARSE_FORMAT, 0);
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}
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static void
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gst_audio_parse_init (GstAudioParse * ap)
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{
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GstPad *inner_pad;
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GstPad *ghostpad;
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ap->rawaudioparse =
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gst_element_factory_make ("rawaudioparse", "inner_rawaudioparse");
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g_assert (ap->rawaudioparse != NULL);
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gst_bin_add (GST_BIN (ap), ap->rawaudioparse);
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inner_pad = gst_element_get_static_pad (ap->rawaudioparse, "sink");
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ghostpad =
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gst_ghost_pad_new_from_template ("sink", inner_pad,
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gst_element_class_get_pad_template (GST_ELEMENT_GET_CLASS (ap), "sink"));
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gst_element_add_pad (GST_ELEMENT (ap), ghostpad);
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gst_object_unref (GST_OBJECT (inner_pad));
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inner_pad = gst_element_get_static_pad (ap->rawaudioparse, "src");
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ghostpad =
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gst_ghost_pad_new_from_template ("src", inner_pad,
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gst_element_class_get_pad_template (GST_ELEMENT_GET_CLASS (ap), "src"));
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gst_element_add_pad (GST_ELEMENT (ap), ghostpad);
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gst_object_unref (GST_OBJECT (inner_pad));
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}
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static void
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gst_audio_parse_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstAudioParse *ap = GST_AUDIO_PARSE (object);
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switch (prop_id) {
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case PROP_FORMAT:{
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GstRawAudioParseFormat raw_parse_format;
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switch (g_value_get_enum (value)) {
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case GST_AUDIO_PARSE_FORMAT_RAW:
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raw_parse_format = GST_RAW_AUDIO_PARSE_FORMAT_PCM;
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break;
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case GST_AUDIO_PARSE_FORMAT_MULAW:
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raw_parse_format = GST_RAW_AUDIO_PARSE_FORMAT_MULAW;
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break;
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case GST_AUDIO_PARSE_FORMAT_ALAW:
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raw_parse_format = GST_RAW_AUDIO_PARSE_FORMAT_ALAW;
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break;
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default:
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g_assert_not_reached ();
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break;
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}
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g_object_set (G_OBJECT (ap->rawaudioparse), "format", raw_parse_format,
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NULL);
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break;
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}
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case PROP_RAW_FORMAT:
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g_object_set (G_OBJECT (ap->rawaudioparse), "pcm-format",
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g_value_get_enum (value), NULL);
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break;
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case PROP_RATE:
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g_object_set (G_OBJECT (ap->rawaudioparse), "sample-rate",
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g_value_get_int (value), NULL);
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break;
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case PROP_CHANNELS:
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g_object_set (G_OBJECT (ap->rawaudioparse), "num-channels",
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g_value_get_int (value), NULL);
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break;
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case PROP_INTERLEAVED:
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g_object_set (G_OBJECT (ap->rawaudioparse), "interleaved",
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g_value_get_boolean (value), NULL);
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break;
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case PROP_CHANNEL_POSITIONS:
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g_object_set (G_OBJECT (ap->rawaudioparse), "channel-positions",
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g_value_get_boxed (value), NULL);
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break;
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case PROP_USE_SINK_CAPS:
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g_object_set (G_OBJECT (ap->rawaudioparse), "use-sink-caps",
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g_value_get_boolean (value), NULL);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_audio_parse_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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{
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GstAudioParse *ap = GST_AUDIO_PARSE (object);
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switch (prop_id) {
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case PROP_FORMAT:{
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GstRawAudioParseFormat raw_parse_format;
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GstAudioParseFormat format;
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g_object_get (G_OBJECT (ap->rawaudioparse), "format", &raw_parse_format,
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NULL);
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switch (raw_parse_format) {
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case GST_RAW_AUDIO_PARSE_FORMAT_PCM:
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format = GST_AUDIO_PARSE_FORMAT_RAW;
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break;
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case GST_RAW_AUDIO_PARSE_FORMAT_MULAW:
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format = GST_AUDIO_PARSE_FORMAT_MULAW;
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break;
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case GST_RAW_AUDIO_PARSE_FORMAT_ALAW:
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format = GST_AUDIO_PARSE_FORMAT_ALAW;
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break;
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default:
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g_assert_not_reached ();
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break;
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}
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g_value_set_enum (value, format);
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break;
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}
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case PROP_RAW_FORMAT:{
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GstAudioFormat format;
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g_object_get (G_OBJECT (ap->rawaudioparse), "pcm-format", &format, NULL);
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g_value_set_enum (value, format);
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break;
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}
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case PROP_RATE:{
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gint sample_rate;
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g_object_get (G_OBJECT (ap->rawaudioparse), "sample-rate", &sample_rate,
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NULL);
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g_value_set_int (value, sample_rate);
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break;
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}
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case PROP_CHANNELS:{
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gint num_channels;
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g_object_get (G_OBJECT (ap->rawaudioparse), "num-channels", &num_channels,
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NULL);
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g_value_set_int (value, num_channels);
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break;
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}
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case PROP_INTERLEAVED:{
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gboolean interleaved;
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g_object_get (G_OBJECT (ap->rawaudioparse), "interleaved", &interleaved,
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NULL);
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g_value_set_boolean (value, interleaved);
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break;
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}
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case PROP_CHANNEL_POSITIONS:{
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gpointer channel_positions;
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g_object_get (G_OBJECT (ap->rawaudioparse), "channel-positions",
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&channel_positions, NULL);
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g_value_set_boxed (value, channel_positions);
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break;
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}
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case PROP_USE_SINK_CAPS:{
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gboolean use_sink_caps;
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g_object_get (G_OBJECT (ap->rawaudioparse), "use-sink-caps",
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&use_sink_caps, NULL);
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g_value_set_boolean (value, use_sink_caps);
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break;
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}
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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