ogg/vorbis/opus: Make them modules and unbundle thirdparty libs

Took the opportunity to undo the Godot changed made to the
opus source. The opus module should eventually be built in its
own environment to avoid polluting others with too many include
dirs and defines.

TODO: Fix the platform/ stuff for opus.

6 files changed, 697 insertions, 0 deletions

diff --git a/modules/vorbis/SCsub b/modules/vorbis/SCsub
new file mode 100644
index 0000000000..5427348c39
--- /dev/null
+++ b/modules/vorbis/SCsub
@@ -0,0 +1,44 @@
+Import('env')
+Import('env_modules')
+
+# Thirdparty source files
+if (env["libvorbis"] != "system"): # builtin
+	thirdparty_dir = "#thirdparty/libvorbis/"
+	thirdparty_libvorbis_sources = [
+		#"analysis.c",
+		#"barkmel.c",
+		"bitrate.c",
+		"block.c",
+		"codebook.c",
+		"envelope.c",
+		"floor0.c",
+		"floor1.c",
+		"info.c",
+		"lookup.c",
+		"lpc.c",
+		"lsp.c",
+		"mapping0.c",
+		"mdct.c",
+		"psy.c",
+		#"psytune.c",
+		"registry.c",
+		"res0.c",
+		"sharedbook.c",
+		"smallft.c",
+		"synthesis.c",
+		#"tone.c",
+		#"vorbisenc.c",
+		"vorbisfile.c",
+		"window.c",
+	]
+
+	thirdparty_libvorbis_sources = [thirdparty_dir + file for file in thirdparty_libvorbis_sources]
+
+	env_modules.add_source_files(env.modules_sources, thirdparty_libvorbis_sources)
+	env_modules.Append(CPPPATH = [thirdparty_dir])
+
+# Godot source files
+env_modules.add_source_files(env.modules_sources, "*.cpp")
+
+Export('env_modules')
+Export('env')
diff --git a/modules/vorbis/audio_stream_ogg_vorbis.cpp b/modules/vorbis/audio_stream_ogg_vorbis.cpp
new file mode 100644
index 0000000000..4ce7940a01
--- /dev/null
+++ b/modules/vorbis/audio_stream_ogg_vorbis.cpp
@@ -0,0 +1,430 @@
+/*************************************************************************/
+/*  audio_stream_ogg_vorbis.cpp                                          */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                    http://www.godotengine.org                         */
+/*************************************************************************/
+/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur.                 */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+#include "audio_stream_ogg_vorbis.h"
+
+
+
+size_t AudioStreamPlaybackOGGVorbis::_ov_read_func(void *p_dst,size_t p_data, size_t p_count, void *_f) {
+
+	//printf("read to %p, %i bytes, %i nmemb, %p\n",p_dst,p_data,p_count,_f);
+	FileAccess *fa=(FileAccess*)_f;
+	size_t read_total = p_data*p_count;
+
+	if (fa->eof_reached())
+		return 0;
+
+	uint8_t *dst=(uint8_t*)p_dst;
+
+	int read = fa->get_buffer(dst, read_total);
+
+	return read;
+}
+
+int AudioStreamPlaybackOGGVorbis::_ov_seek_func(void *_f,ogg_int64_t offs, int whence) {
+
+	//printf("seek to %p, offs %i, whence %i\n",_f,(int)offs,whence);
+
+#ifdef SEEK_SET
+	//printf("seek set defined\n");
+	FileAccess *fa=(FileAccess*)_f;
+
+	if (whence==SEEK_SET) {
+
+		fa->seek(offs);
+	} else if (whence==SEEK_CUR) {
+
+		fa->seek(fa->get_pos()+offs);
+	} else if (whence==SEEK_END) {
+
+		fa->seek_end(offs);
+	} else {
+
+		ERR_PRINT("BUG, wtf was whence set to?\n");
+	}
+	int ret=fa->eof_reached()?-1:0;
+	//printf("returning %i\n",ret);
+	return ret;
+
+#else
+	return -1; // no seeking
+#endif
+
+}
+int AudioStreamPlaybackOGGVorbis::_ov_close_func(void *_f) {
+
+//	printf("close %p\n",_f);
+	if (!_f)
+		return 0;
+	FileAccess *fa=(FileAccess*)_f;
+	if (fa->is_open())
+		fa->close();
+	return 0;
+}
+long AudioStreamPlaybackOGGVorbis::_ov_tell_func(void *_f) {
+
+	//printf("close %p\n",_f);
+
+	FileAccess *fa=(FileAccess*)_f;
+	return fa->get_pos();
+}
+
+
+
+int AudioStreamPlaybackOGGVorbis::mix(int16_t* p_bufer,int p_frames) {
+
+	if (!playing)
+		return 0;
+
+	int total=p_frames;
+	while (true) {
+
+		int todo = p_frames;
+
+		if (todo==0 || todo<MIN_MIX) {
+			break;
+		}
+
+		//printf("to mix %i - mix me %i bytes\n",to_mix,to_mix*stream_channels*sizeof(int16_t));
+
+		#ifdef BIG_ENDIAN_ENABLED
+		long ret=ov_read(&vf,(char*)p_bufer,todo*stream_channels*sizeof(int16_t), 1, 2, 1, &current_section);
+		#else
+		long ret=ov_read(&vf,(char*)p_bufer,todo*stream_channels*sizeof(int16_t), 0, 2, 1, &current_section);
+		#endif
+
+		if (ret<0) {
+
+			playing = false;
+			ERR_EXPLAIN("Error reading OGG Vorbis File: "+file);
+			ERR_BREAK(ret<0);
+		} else if (ret==0) { // end of song, reload?
+
+			ov_clear(&vf);
+
+			_close_file();
+
+			if (!has_loop()) {
+
+				playing=false;
+				repeats=1;
+				break;
+			}
+
+			f=FileAccess::open(file,FileAccess::READ);
+
+			int errv = ov_open_callbacks(f,&vf,NULL,0,_ov_callbacks);
+			if (errv!=0) {
+				playing=false;
+				break;; // :(
+			}
+
+			if (loop_restart_time) {
+				bool ok = ov_time_seek(&vf,loop_restart_time)==0;
+				if (!ok) {
+					playing=false;
+					//ERR_EXPLAIN("loop restart time rejected");
+					ERR_PRINT("loop restart time rejected")
+				}
+
+				frames_mixed=stream_srate*loop_restart_time;
+			} else {
+
+				frames_mixed=0;
+			}
+			repeats++;
+			continue;
+
+		}
+
+		ret/=stream_channels;
+		ret/=sizeof(int16_t);
+
+		frames_mixed+=ret;
+
+		p_bufer+=ret*stream_channels;
+		p_frames-=ret;
+
+	}
+
+	return total-p_frames;
+
+}
+
+
+
+void AudioStreamPlaybackOGGVorbis::play(float p_from) {
+
+	if (playing)
+		stop();
+
+	if (_load_stream()!=OK)
+		return;
+
+
+	frames_mixed=0;
+	playing=true;
+	if (p_from>0) {
+		seek_pos(p_from);
+	}
+}
+
+void AudioStreamPlaybackOGGVorbis::_close_file() {
+
+	if (f) {
+
+		memdelete(f);
+		f=NULL;
+	}
+}
+
+bool AudioStreamPlaybackOGGVorbis::is_playing() const {
+	return playing;
+}
+void AudioStreamPlaybackOGGVorbis::stop() {
+
+	_clear_stream();
+	playing=false;
+	//_clear();
+}
+
+
+
+float AudioStreamPlaybackOGGVorbis::get_pos() const {
+
+	int32_t frames = int32_t(frames_mixed);
+	if (frames < 0)
+		frames=0;
+	return double(frames) / stream_srate;
+}
+
+void AudioStreamPlaybackOGGVorbis::seek_pos(float p_time) {
+
+
+
+	if (!playing)
+		return;
+	bool ok = ov_time_seek(&vf,p_time)==0;
+	ERR_FAIL_COND(!ok);
+	frames_mixed=stream_srate*p_time;
+}
+
+String AudioStreamPlaybackOGGVorbis::get_stream_name() const  {
+
+	return "";
+}
+
+void AudioStreamPlaybackOGGVorbis::set_loop(bool p_enable) {
+
+	loops=p_enable;
+}
+
+bool AudioStreamPlaybackOGGVorbis::has_loop() const {
+
+	return loops;
+}
+
+int AudioStreamPlaybackOGGVorbis::get_loop_count() const {
+	return repeats;
+}
+
+
+Error AudioStreamPlaybackOGGVorbis::set_file(const String& p_file) {
+
+	file=p_file;
+	stream_valid=false;
+	Error err;
+	f=FileAccess::open(file,FileAccess::READ,&err);
+
+	if (err) {
+		ERR_FAIL_COND_V( err, err );
+	}
+
+	int errv = ov_open_callbacks(f,&vf,NULL,0,_ov_callbacks);
+	switch(errv) {
+
+		case OV_EREAD: { // - A read from media returned an error.
+			memdelete(f); f=NULL;
+			ERR_FAIL_V( ERR_FILE_CANT_READ );
+		} break;
+		case OV_EVERSION:  // - Vorbis version mismatch.
+		case OV_ENOTVORBIS: { // - Bitstream is not Vorbis data.
+			memdelete(f); f=NULL;
+			ERR_FAIL_V( ERR_FILE_UNRECOGNIZED );
+		} break;
+		case OV_EBADHEADER: { // - Invalid Vorbis bitstream header.
+			memdelete(f); f=NULL;
+			ERR_FAIL_V( ERR_FILE_CORRUPT );
+		} break;
+		case OV_EFAULT: { // - Internal logic fault; indicates a bug or heap/stack corruption.
+			memdelete(f); f=NULL;
+			ERR_FAIL_V( ERR_BUG );
+		} break;
+	}
+	const vorbis_info *vinfo=ov_info(&vf,-1);
+	stream_channels=vinfo->channels;
+	stream_srate=vinfo->rate;
+	length = ov_time_total(&vf,-1);
+	ov_clear(&vf);
+	memdelete(f);
+	f=NULL;
+	stream_valid=true;
+
+
+	return OK;
+}
+
+Error AudioStreamPlaybackOGGVorbis::_load_stream()  {
+
+	ERR_FAIL_COND_V(!stream_valid,ERR_UNCONFIGURED);
+
+	_clear_stream();
+	if (file=="")
+		return ERR_INVALID_DATA;
+
+	Error err;
+	f=FileAccess::open(file,FileAccess::READ,&err);
+	if (err) {
+		ERR_FAIL_COND_V( err, err );
+	}
+
+	int errv = ov_open_callbacks(f,&vf,NULL,0,_ov_callbacks);
+	switch(errv) {
+
+		case OV_EREAD: { // - A read from media returned an error.
+			memdelete(f); f=NULL;
+			ERR_FAIL_V( ERR_FILE_CANT_READ );
+		} break;
+		case OV_EVERSION:  // - Vorbis version mismatch.
+		case OV_ENOTVORBIS: { // - Bitstream is not Vorbis data.
+			memdelete(f); f=NULL;
+			ERR_FAIL_V( ERR_FILE_UNRECOGNIZED );
+		} break;
+		case OV_EBADHEADER: { // - Invalid Vorbis bitstream header.
+			memdelete(f); f=NULL;
+			ERR_FAIL_V( ERR_FILE_CORRUPT );
+		} break;
+		case OV_EFAULT: { // - Internal logic fault; indicates a bug or heap/stack corruption.
+			memdelete(f); f=NULL;
+			ERR_FAIL_V( ERR_BUG );
+		} break;
+	}
+	repeats=0;
+	stream_loaded=true;
+
+
+	return OK;
+}
+
+
+float AudioStreamPlaybackOGGVorbis::get_length() const {
+
+	if (!stream_loaded) {
+		if (const_cast<AudioStreamPlaybackOGGVorbis*>(this)->_load_stream()!=OK)
+			return 0;
+	}
+	return length;
+}
+
+void AudioStreamPlaybackOGGVorbis::_clear_stream() {
+
+	if (!stream_loaded)
+		return;
+
+	ov_clear(&vf);
+	_close_file();
+
+	stream_loaded=false;
+	//stream_channels=1;
+	playing=false;
+}
+
+void AudioStreamPlaybackOGGVorbis::set_paused(bool p_paused) {
+
+	paused=p_paused;
+}
+
+bool AudioStreamPlaybackOGGVorbis::is_paused(bool p_paused) const {
+
+	return paused;
+}
+
+
+AudioStreamPlaybackOGGVorbis::AudioStreamPlaybackOGGVorbis() {
+
+	loops=false;
+	playing=false;
+	_ov_callbacks.read_func=_ov_read_func;
+	_ov_callbacks.seek_func=_ov_seek_func;
+	_ov_callbacks.close_func=_ov_close_func;
+	_ov_callbacks.tell_func=_ov_tell_func;
+	f = NULL;
+	stream_loaded=false;
+	stream_valid=false;
+	repeats=0;	
+	paused=true;
+	stream_channels=0;
+	stream_srate=0;
+	current_section=0;
+	length=0;
+	loop_restart_time=0;
+}
+
+
+AudioStreamPlaybackOGGVorbis::~AudioStreamPlaybackOGGVorbis() {
+
+	_clear_stream();
+
+}
+
+
+
+RES ResourceFormatLoaderAudioStreamOGGVorbis::load(const String &p_path, const String& p_original_path, Error *r_error) {
+	if (r_error)
+		*r_error=OK;
+
+	AudioStreamOGGVorbis *ogg_stream = memnew(AudioStreamOGGVorbis);
+	ogg_stream->set_file(p_path);
+	return Ref<AudioStreamOGGVorbis>(ogg_stream);
+}
+
+void ResourceFormatLoaderAudioStreamOGGVorbis::get_recognized_extensions(List<String> *p_extensions) const {
+
+	p_extensions->push_back("ogg");
+}
+String ResourceFormatLoaderAudioStreamOGGVorbis::get_resource_type(const String &p_path) const {
+
+	if (p_path.extension().to_lower()=="ogg")
+		return "AudioStreamOGGVorbis";
+	return "";
+}
+
+bool ResourceFormatLoaderAudioStreamOGGVorbis::handles_type(const String& p_type) const {
+	return (p_type=="AudioStream" || p_type=="AudioStreamOGG" || p_type=="AudioStreamOGGVorbis");
+}
+
diff --git a/modules/vorbis/audio_stream_ogg_vorbis.h b/modules/vorbis/audio_stream_ogg_vorbis.h
new file mode 100644
index 0000000000..8d8d7392b5
--- /dev/null
+++ b/modules/vorbis/audio_stream_ogg_vorbis.h
@@ -0,0 +1,142 @@
+/*************************************************************************/
+/*  audio_stream_ogg_vorbis.h                                            */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                    http://www.godotengine.org                         */
+/*************************************************************************/
+/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur.                 */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+#ifndef AUDIO_STREAM_OGG_VORBIS_H
+#define AUDIO_STREAM_OGG_VORBIS_H
+
+#include "io/resource_loader.h"
+#include "os/file_access.h"
+#include "os/thread_safe.h"
+#include "scene/resources/audio_stream.h"
+
+#include <vorbis/vorbisfile.h>
+
+class AudioStreamPlaybackOGGVorbis : public AudioStreamPlayback {
+
+	OBJ_TYPE(AudioStreamPlaybackOGGVorbis,AudioStreamPlayback);
+
+	enum {
+		MIN_MIX=1024
+	};
+
+	FileAccess *f;
+
+	ov_callbacks _ov_callbacks;
+	float length;
+	static size_t _ov_read_func(void *p_dst,size_t p_data, size_t p_count, void *_f);
+	static int _ov_seek_func(void *_f,ogg_int64_t offs, int whence);
+	static int _ov_close_func(void *_f);
+	static long _ov_tell_func(void *_f);
+
+	String file;
+	int64_t frames_mixed;
+
+	bool stream_loaded;
+	volatile bool playing;
+	OggVorbis_File vf;
+	int stream_channels;
+	int stream_srate;
+	int current_section;
+
+
+	bool paused;
+	bool loops;
+	int repeats;
+
+	Error _load_stream();
+	void _clear_stream();
+	void _close_file();
+
+	bool stream_valid;
+	float loop_restart_time;
+
+
+public:
+
+
+	Error set_file(const String& p_file);
+
+	virtual void play(float p_from=0);
+	virtual void stop();
+	virtual bool is_playing() const;
+
+	virtual void set_loop_restart_time(float p_time) { loop_restart_time=p_time; }
+
+	virtual void set_paused(bool p_paused);
+	virtual bool is_paused(bool p_paused) const;
+
+	virtual void set_loop(bool p_enable);
+	virtual bool has_loop() const;
+
+	virtual float get_length() const;
+
+	virtual String get_stream_name() const;
+
+	virtual int get_loop_count() const;
+
+	virtual float get_pos() const;
+	virtual void seek_pos(float p_time);
+
+	virtual int get_channels() const { return stream_channels; }
+	virtual int get_mix_rate() const { return stream_srate; }
+
+	virtual int get_minimum_buffer_size() const { return 0; }
+	virtual int mix(int16_t* p_bufer,int p_frames);
+
+	AudioStreamPlaybackOGGVorbis();
+	~AudioStreamPlaybackOGGVorbis();
+};
+
+
+class AudioStreamOGGVorbis : public AudioStream {
+
+	OBJ_TYPE(AudioStreamOGGVorbis,AudioStream);
+
+	String file;
+public:
+
+	Ref<AudioStreamPlayback> instance_playback() {
+		Ref<AudioStreamPlaybackOGGVorbis> pb = memnew( AudioStreamPlaybackOGGVorbis );
+		pb->set_file(file);
+		return pb;
+	}
+
+	void set_file(const String& p_file) { file=p_file; }
+
+};
+
+class ResourceFormatLoaderAudioStreamOGGVorbis : public ResourceFormatLoader {
+public:
+	virtual RES load(const String &p_path,const String& p_original_path="",Error *r_error=NULL);
+	virtual void get_recognized_extensions(List<String> *p_extensions) const;
+	virtual bool handles_type(const String& p_type) const;
+	virtual String get_resource_type(const String &p_path) const;
+};
+
+
+#endif // AUDIO_STREAM_OGG_H
diff --git a/modules/vorbis/config.py b/modules/vorbis/config.py
new file mode 100644
index 0000000000..368e97e152
--- /dev/null
+++ b/modules/vorbis/config.py
@@ -0,0 +1,6 @@
+
+def can_build(platform):
+	return True
+
+def configure(env):
+	pass
diff --git a/modules/vorbis/register_types.cpp b/modules/vorbis/register_types.cpp
new file mode 100644
index 0000000000..ae63b5af3c
--- /dev/null
+++ b/modules/vorbis/register_types.cpp
@@ -0,0 +1,45 @@
+/*************************************************************************/
+/*  register_types.cpp                                                   */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                    http://www.godotengine.org                         */
+/*************************************************************************/
+/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur.                 */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+#include "register_types.h"
+
+#include "audio_stream_ogg_vorbis.h"
+
+static ResourceFormatLoaderAudioStreamOGGVorbis *vorbis_stream_loader = NULL;
+
+void register_vorbis_types() {
+
+	vorbis_stream_loader = memnew( ResourceFormatLoaderAudioStreamOGGVorbis );
+	ResourceLoader::add_resource_format_loader(vorbis_stream_loader);
+	ObjectTypeDB::register_type<AudioStreamOGGVorbis>();
+}
+
+void unregister_vorbis_types() {
+
+	memdelete( vorbis_stream_loader );
+}
diff --git a/modules/vorbis/register_types.h b/modules/vorbis/register_types.h
new file mode 100644
index 0000000000..6baaed7ce8
--- /dev/null
+++ b/modules/vorbis/register_types.h
@@ -0,0 +1,30 @@
+/*************************************************************************/
+/*  register_types.h                                                     */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                    http://www.godotengine.org                         */
+/*************************************************************************/
+/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur.                 */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+void register_vorbis_types();
+void unregister_vorbis_types();