godot/modules/vorbis/audio_stream_ogg_vorbis.cpp
Rémi Verschelde 6d16f2f053 Fix error macro calls not ending with semicolon
It's not necessary, but the vast majority of calls of error macros
do have an ending semicolon, so it's best to be consistent.
Most WARN_DEPRECATED calls did *not* have a semicolon, but there's
no reason for them to be treated differently.
2019-06-11 14:49:34 +02:00

412 lines
10 KiB
C++

/*************************************************************************/
/* audio_stream_ogg_vorbis.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */
/* */
/* 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_position() + offs);
} else if (whence == SEEK_END) {
fa->seek_end(offs);
} else {
ERR_PRINT("Vorbis seek function failure: Unexpected value in _whence\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_position();
}
int AudioStreamPlaybackOGGVorbis::mix(int16_t *p_buffer, int p_frames) {
if (!playing)
return 0;
int total = p_frames;
while (true) {
int todo = p_frames;
if (todo == 0 || todo < MIN_MIX) {
break;
}
#ifdef BIG_ENDIAN_ENABLED
long ret = ov_read(&vf, (char *)p_buffer, todo * stream_channels * sizeof(int16_t), 1, 2, 1, &current_section);
#else
long ret = ov_read(&vf, (char *)p_buffer, 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_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_buffer += 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(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_playback_position() const {
int32_t frames = int32_t(frames_mixed);
if (frames < 0)
frames = 0;
return double(frames) / stream_srate;
}
void AudioStreamPlaybackOGGVorbis::seek(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() 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.get_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");
}