gst/rawparse/gstaudioparse.c - mtk-gst-plugins-bad - Git at Google

 /* 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., 59 Temple Place - Suite 330,
  * Boston, MA 02111-1307, USA.
  */
 /**
  * SECTION:element-audioparse
  *
  * Converts a byte stream into audio frames.
  */

 #ifdef HAVE_CONFIG_H
 #  include "config.h"
 #endif

 #include "gstaudioparse.h"

 typedef enum
 {
   GST_AUDIO_PARSE_FORMAT_INT,
   GST_AUDIO_PARSE_FORMAT_FLOAT
 } GstAudioParseFormat;

 typedef enum
 {
   GST_AUDIO_PARSE_ENDIANNESS_LITTLE = 1234,
   GST_AUDIO_PARSE_ENDIANNESS_BIG = 4321
 } GstAudioParseEndianness;

 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);

 static GstCaps *gst_audio_parse_get_caps (GstRawParse * rp);

 static void gst_audio_parse_update_frame_size (GstAudioParse * ap);

 GST_DEBUG_CATEGORY_STATIC (gst_audio_parse_debug);
 #define GST_CAT_DEFAULT gst_audio_parse_debug

 static const GstElementDetails gst_audio_parse_details =
 GST_ELEMENT_DETAILS ("Audio Parse",
     "Filter/Audio",
     "Converts stream into audio frames",
     "Sebastian Dröge <slomo@circular-chaos.org>");

 enum
 {
   ARG_0,
   ARG_FORMAT,
   ARG_RATE,
   ARG_CHANNELS,
   ARG_ENDIANNESS,
   ARG_WIDTH,
   ARG_DEPTH,
   ARG_SIGNED,
 };


 #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_INT, "Integer", "int"},
     {GST_AUDIO_PARSE_FORMAT_FLOAT, "Floating Point", "float"},
     {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_ENDIANNESS (gst_audio_parse_endianness_get_type ())
 static GType
 gst_audio_parse_endianness_get_type (void)
 {
   static GType audio_parse_endianness_type = 0;
   static const GEnumValue endian_types[] = {
     {GST_AUDIO_PARSE_ENDIANNESS_LITTLE, "Little Endian", "little"},
     {GST_AUDIO_PARSE_ENDIANNESS_BIG, "Big Endian", "big"},
     {0, NULL, NULL}
   };

   if (!audio_parse_endianness_type) {
     audio_parse_endianness_type =
         g_enum_register_static ("GstAudioParseEndianness", endian_types);
   }

   return audio_parse_endianness_type;
 }

 GST_BOILERPLATE (GstAudioParse, gst_audio_parse, GstRawParse,
     GST_TYPE_RAW_PARSE);

 static void
 gst_audio_parse_base_init (gpointer g_class)
 {
   GstRawParseClass *rp_class = GST_RAW_PARSE_CLASS (g_class);
   GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
   GstCaps *caps;

   GST_DEBUG_CATEGORY_INIT (gst_audio_parse_debug, "audioparse", 0,
       "audioparse element");

   gst_element_class_set_details (gstelement_class, &gst_audio_parse_details);

   caps =
       gst_caps_from_string ("audio/x-raw-int,"
       " depth=(int) [ 1, 32 ],"
       " width=(int) { 8, 16, 24, 32 },"
       " endianness=(int) { LITTLE_ENDIAN, BIG_ENDIAN }, "
       " signed=(bool) { TRUE, FALSE },"
       " rate=(int) [ 1, MAX ],"
       " channels=(int) [ 1, MAX ]; "
       "audio/x-raw-float,"
       " width=(int) { 32, 64 },"
       " endianness=(int) { LITTLE_ENDIAN, BIG_ENDIAN }, "
       " rate=(int)[1,MAX]," " channels=(int)[1,MAX]");

   gst_raw_parse_class_set_src_pad_template (rp_class, caps);
   gst_raw_parse_class_set_multiple_frames_per_buffer (rp_class, TRUE);
   gst_caps_unref (caps);
 }

 static void
 gst_audio_parse_class_init (GstAudioParseClass * klass)
 {
   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
   GstRawParseClass *rp_class = GST_RAW_PARSE_CLASS (klass);

   gobject_class->set_property = gst_audio_parse_set_property;
   gobject_class->get_property = gst_audio_parse_get_property;

   rp_class->get_caps = gst_audio_parse_get_caps;

   g_object_class_install_property (gobject_class, ARG_FORMAT,
       g_param_spec_enum ("format", "Format",
           "Format of audio samples in raw stream", GST_AUDIO_PARSE_FORMAT,
           GST_AUDIO_PARSE_FORMAT_INT, G_PARAM_READWRITE));

   g_object_class_install_property (gobject_class, ARG_RATE,
       g_param_spec_int ("rate", "Rate", "Rate of audio samples in raw stream",
           1, INT_MAX, 44100, G_PARAM_READWRITE));

   g_object_class_install_property (gobject_class, ARG_CHANNELS,
       g_param_spec_int ("channels", "Channels",
           "Number of channels in raw stream", 1, INT_MAX, 2,
           G_PARAM_READWRITE));

   g_object_class_install_property (gobject_class, ARG_WIDTH,
       g_param_spec_int ("width", "Width",
           "Width of audio samples in raw stream", 1, INT_MAX, 16,
           G_PARAM_READWRITE));

   g_object_class_install_property (gobject_class, ARG_DEPTH,
       g_param_spec_int ("depth", "Depth",
           "Depth of audio samples in raw stream", 1, INT_MAX, 16,
           G_PARAM_READWRITE));

   g_object_class_install_property (gobject_class, ARG_SIGNED,
       g_param_spec_boolean ("signed", "signed",
           "Sign of audio samples in raw stream", TRUE, G_PARAM_READWRITE));

   g_object_class_install_property (gobject_class, ARG_ENDIANNESS,
       g_param_spec_enum ("endianness", "Endianness",
           "Endianness of audio samples in raw stream",
           GST_AUDIO_PARSE_ENDIANNESS, G_BYTE_ORDER, G_PARAM_READWRITE));
 }

 static void
 gst_audio_parse_init (GstAudioParse * ap, GstAudioParseClass * g_class)
 {
   ap->format = GST_AUDIO_PARSE_FORMAT_INT;
   ap->channels = 2;
   ap->width = 16;
   ap->depth = 16;
   ap->signedness = TRUE;
   ap->endianness = G_BYTE_ORDER;

   gst_audio_parse_update_frame_size (ap);
   gst_raw_parse_set_fps (GST_RAW_PARSE (ap), 44100, 1);
 }

 static void
 gst_audio_parse_set_property (GObject * object, guint prop_id,
     const GValue * value, GParamSpec * pspec)
 {
   GstAudioParse *ap = GST_AUDIO_PARSE (object);

   g_return_if_fail (!gst_raw_parse_is_negotiated (GST_RAW_PARSE (ap)));

   switch (prop_id) {
     case ARG_FORMAT:
       ap->format = g_value_get_enum (value);
       break;
     case ARG_RATE:
       gst_raw_parse_set_fps (GST_RAW_PARSE (ap), g_value_get_int (value), 1);
       break;
     case ARG_CHANNELS:
       ap->channels = g_value_get_int (value);
       break;
     case ARG_WIDTH:
       ap->width = g_value_get_int (value);
       break;
     case ARG_DEPTH:
       ap->depth = g_value_get_int (value);
       break;
     case ARG_SIGNED:
       ap->signedness = g_value_get_boolean (value);
       break;
     case ARG_ENDIANNESS:
       ap->endianness = g_value_get_enum (value);
       break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
       break;
   }

   gst_audio_parse_update_frame_size (ap);
 }

 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 ARG_FORMAT:
       g_value_set_enum (value, ap->format);
       break;
     case ARG_RATE:{
       gint fps_n, fps_d;

       gst_raw_parse_get_fps (GST_RAW_PARSE (ap), &fps_n, &fps_d);
       g_value_set_int (value, fps_n);
       break;
     }
     case ARG_CHANNELS:
       g_value_set_int (value, ap->channels);
       break;
     case ARG_WIDTH:
       g_value_set_int (value, ap->width);
       break;
     case ARG_DEPTH:
       g_value_set_int (value, ap->depth);
       break;
     case ARG_SIGNED:
       g_value_set_boolean (value, ap->signedness);
       break;
     case ARG_ENDIANNESS:
       g_value_set_enum (value, ap->endianness);
       break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
       break;
   }
 }

 void
 gst_audio_parse_update_frame_size (GstAudioParse * ap)
 {
   gint framesize;

   framesize = (ap->width / 8) * ap->channels;

   gst_raw_parse_set_framesize (GST_RAW_PARSE (ap), framesize);
 }

 static GstCaps *
 gst_audio_parse_get_caps (GstRawParse * rp)
 {
   GstAudioParse *ap = GST_AUDIO_PARSE (rp);
   GstCaps *caps;

   gint fps_n, fps_d;

   gst_raw_parse_get_fps (rp, &fps_n, &fps_d);

   if (ap->format == GST_AUDIO_PARSE_FORMAT_INT) {
     caps = gst_caps_new_simple ("audio/x-raw-int",
         "rate", G_TYPE_INT, fps_n,
         "channels", G_TYPE_INT, ap->channels,
         "width", G_TYPE_INT, ap->width,
         "depth", G_TYPE_INT, ap->depth,
         "signed", G_TYPE_BOOLEAN, ap->signedness,
         "endianness", G_TYPE_INT, ap->endianness, NULL);
   } else {
     caps = gst_caps_new_simple ("audio/x-raw-float",
         "rate", G_TYPE_INT, fps_n,
         "channels", G_TYPE_INT, ap->channels,
         "width", G_TYPE_INT, ap->width,
         "endianness", G_TYPE_INT, ap->endianness, NULL);
   }
   return caps;
 }
	/* 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., 59 Temple Place - Suite 330,
	* Boston, MA 02111-1307, USA.
	*/
	/**
	* SECTION:element-audioparse
	*
	* Converts a byte stream into audio frames.
	*/

	#ifdef HAVE_CONFIG_H
	# include "config.h"
	#endif

	#include "gstaudioparse.h"

	typedef enum
	{
	GST_AUDIO_PARSE_FORMAT_INT,
	GST_AUDIO_PARSE_FORMAT_FLOAT
	} GstAudioParseFormat;

	typedef enum
	{
	GST_AUDIO_PARSE_ENDIANNESS_LITTLE = 1234,
	GST_AUDIO_PARSE_ENDIANNESS_BIG = 4321
	} GstAudioParseEndianness;

	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);

	static GstCaps gst_audio_parse_get_caps (GstRawParse rp);

	static void gst_audio_parse_update_frame_size (GstAudioParse * ap);

	GST_DEBUG_CATEGORY_STATIC (gst_audio_parse_debug);
	#define GST_CAT_DEFAULT gst_audio_parse_debug

	static const GstElementDetails gst_audio_parse_details =
	GST_ELEMENT_DETAILS ("Audio Parse",
	"Filter/Audio",
	"Converts stream into audio frames",
	"Sebastian Dröge <slomo@circular-chaos.org>");

	enum
	{
	ARG_0,
	ARG_FORMAT,
	ARG_RATE,
	ARG_CHANNELS,
	ARG_ENDIANNESS,
	ARG_WIDTH,
	ARG_DEPTH,
	ARG_SIGNED,
	};


	#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_INT, "Integer", "int"},
	{GST_AUDIO_PARSE_FORMAT_FLOAT, "Floating Point", "float"},
	{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_ENDIANNESS (gst_audio_parse_endianness_get_type ())
	static GType
	gst_audio_parse_endianness_get_type (void)
	{
	static GType audio_parse_endianness_type = 0;
	static const GEnumValue endian_types[] = {
	{GST_AUDIO_PARSE_ENDIANNESS_LITTLE, "Little Endian", "little"},
	{GST_AUDIO_PARSE_ENDIANNESS_BIG, "Big Endian", "big"},
	{0, NULL, NULL}
	};

	if (!audio_parse_endianness_type) {
	audio_parse_endianness_type =
	g_enum_register_static ("GstAudioParseEndianness", endian_types);
	}

	return audio_parse_endianness_type;
	}

	GST_BOILERPLATE (GstAudioParse, gst_audio_parse, GstRawParse,
	GST_TYPE_RAW_PARSE);

	static void
	gst_audio_parse_base_init (gpointer g_class)
	{
	GstRawParseClass *rp_class = GST_RAW_PARSE_CLASS (g_class);
	GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
	GstCaps *caps;

	GST_DEBUG_CATEGORY_INIT (gst_audio_parse_debug, "audioparse", 0,
	"audioparse element");

	gst_element_class_set_details (gstelement_class, &gst_audio_parse_details);

	caps =
	gst_caps_from_string ("audio/x-raw-int,"
	" depth=(int) [ 1, 32 ],"
	" width=(int) { 8, 16, 24, 32 },"
	" endianness=(int) { LITTLE_ENDIAN, BIG_ENDIAN }, "
	" signed=(bool) { TRUE, FALSE },"
	" rate=(int) [ 1, MAX ],"
	" channels=(int) [ 1, MAX ]; "
	"audio/x-raw-float,"
	" width=(int) { 32, 64 },"
	" endianness=(int) { LITTLE_ENDIAN, BIG_ENDIAN }, "
	" rate=(int)[1,MAX]," " channels=(int)[1,MAX]");

	gst_raw_parse_class_set_src_pad_template (rp_class, caps);
	gst_raw_parse_class_set_multiple_frames_per_buffer (rp_class, TRUE);
	gst_caps_unref (caps);
	}

	static void
	gst_audio_parse_class_init (GstAudioParseClass * klass)
	{
	GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
	GstRawParseClass *rp_class = GST_RAW_PARSE_CLASS (klass);

	gobject_class->set_property = gst_audio_parse_set_property;
	gobject_class->get_property = gst_audio_parse_get_property;

	rp_class->get_caps = gst_audio_parse_get_caps;

	g_object_class_install_property (gobject_class, ARG_FORMAT,
	g_param_spec_enum ("format", "Format",
	"Format of audio samples in raw stream", GST_AUDIO_PARSE_FORMAT,
	GST_AUDIO_PARSE_FORMAT_INT, G_PARAM_READWRITE));

	g_object_class_install_property (gobject_class, ARG_RATE,
	g_param_spec_int ("rate", "Rate", "Rate of audio samples in raw stream",
	1, INT_MAX, 44100, G_PARAM_READWRITE));

	g_object_class_install_property (gobject_class, ARG_CHANNELS,
	g_param_spec_int ("channels", "Channels",
	"Number of channels in raw stream", 1, INT_MAX, 2,
	G_PARAM_READWRITE));

	g_object_class_install_property (gobject_class, ARG_WIDTH,
	g_param_spec_int ("width", "Width",
	"Width of audio samples in raw stream", 1, INT_MAX, 16,
	G_PARAM_READWRITE));

	g_object_class_install_property (gobject_class, ARG_DEPTH,
	g_param_spec_int ("depth", "Depth",
	"Depth of audio samples in raw stream", 1, INT_MAX, 16,
	G_PARAM_READWRITE));

	g_object_class_install_property (gobject_class, ARG_SIGNED,
	g_param_spec_boolean ("signed", "signed",
	"Sign of audio samples in raw stream", TRUE, G_PARAM_READWRITE));

	g_object_class_install_property (gobject_class, ARG_ENDIANNESS,
	g_param_spec_enum ("endianness", "Endianness",
	"Endianness of audio samples in raw stream",
	GST_AUDIO_PARSE_ENDIANNESS, G_BYTE_ORDER, G_PARAM_READWRITE));
	}

	static void
	gst_audio_parse_init (GstAudioParse * ap, GstAudioParseClass * g_class)
	{
	ap->format = GST_AUDIO_PARSE_FORMAT_INT;
	ap->channels = 2;
	ap->width = 16;
	ap->depth = 16;
	ap->signedness = TRUE;
	ap->endianness = G_BYTE_ORDER;

	gst_audio_parse_update_frame_size (ap);
	gst_raw_parse_set_fps (GST_RAW_PARSE (ap), 44100, 1);
	}

	static void
	gst_audio_parse_set_property (GObject * object, guint prop_id,
	const GValue * value, GParamSpec * pspec)
	{
	GstAudioParse *ap = GST_AUDIO_PARSE (object);

	g_return_if_fail (!gst_raw_parse_is_negotiated (GST_RAW_PARSE (ap)));

	switch (prop_id) {
	case ARG_FORMAT:
	ap->format = g_value_get_enum (value);
	break;
	case ARG_RATE:
	gst_raw_parse_set_fps (GST_RAW_PARSE (ap), g_value_get_int (value), 1);
	break;
	case ARG_CHANNELS:
	ap->channels = g_value_get_int (value);
	break;
	case ARG_WIDTH:
	ap->width = g_value_get_int (value);
	break;
	case ARG_DEPTH:
	ap->depth = g_value_get_int (value);
	break;
	case ARG_SIGNED:
	ap->signedness = g_value_get_boolean (value);
	break;
	case ARG_ENDIANNESS:
	ap->endianness = g_value_get_enum (value);
	break;
	default:
	G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
	break;
	}

	gst_audio_parse_update_frame_size (ap);
	}

	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 ARG_FORMAT:
	g_value_set_enum (value, ap->format);
	break;
	case ARG_RATE:{
	gint fps_n, fps_d;

	gst_raw_parse_get_fps (GST_RAW_PARSE (ap), &fps_n, &fps_d);
	g_value_set_int (value, fps_n);
	break;
	}
	case ARG_CHANNELS:
	g_value_set_int (value, ap->channels);
	break;
	case ARG_WIDTH:
	g_value_set_int (value, ap->width);
	break;
	case ARG_DEPTH:
	g_value_set_int (value, ap->depth);
	break;
	case ARG_SIGNED:
	g_value_set_boolean (value, ap->signedness);
	break;
	case ARG_ENDIANNESS:
	g_value_set_enum (value, ap->endianness);
	break;
	default:
	G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
	break;
	}
	}

	void
	gst_audio_parse_update_frame_size (GstAudioParse * ap)
	{
	gint framesize;

	framesize = (ap->width / 8) * ap->channels;

	gst_raw_parse_set_framesize (GST_RAW_PARSE (ap), framesize);
	}

	static GstCaps *
	gst_audio_parse_get_caps (GstRawParse * rp)
	{
	GstAudioParse *ap = GST_AUDIO_PARSE (rp);
	GstCaps *caps;

	gint fps_n, fps_d;

	gst_raw_parse_get_fps (rp, &fps_n, &fps_d);

	if (ap->format == GST_AUDIO_PARSE_FORMAT_INT) {
	caps = gst_caps_new_simple ("audio/x-raw-int",
	"rate", G_TYPE_INT, fps_n,
	"channels", G_TYPE_INT, ap->channels,
	"width", G_TYPE_INT, ap->width,
	"depth", G_TYPE_INT, ap->depth,
	"signed", G_TYPE_BOOLEAN, ap->signedness,
	"endianness", G_TYPE_INT, ap->endianness, NULL);
	} else {
	caps = gst_caps_new_simple ("audio/x-raw-float",
	"rate", G_TYPE_INT, fps_n,
	"channels", G_TYPE_INT, ap->channels,
	"width", G_TYPE_INT, ap->width,
	"endianness", G_TYPE_INT, ap->endianness, NULL);
	}
	return caps;
	}