From 6e87314d83a9beab56fdd115277e230ef683c53d Mon Sep 17 00:00:00 2001 From: George Marques Date: Fri, 2 Oct 2015 14:20:50 -0300 Subject: Add support for Opus audio format --- drivers/opus/audio_stream_opus.cpp | 374 +++++++++++++++++++++++++++++++++++++ 1 file changed, 374 insertions(+) create mode 100644 drivers/opus/audio_stream_opus.cpp (limited to 'drivers/opus/audio_stream_opus.cpp') diff --git a/drivers/opus/audio_stream_opus.cpp b/drivers/opus/audio_stream_opus.cpp new file mode 100644 index 0000000000..be31420453 --- /dev/null +++ b/drivers/opus/audio_stream_opus.cpp @@ -0,0 +1,374 @@ +/*************************************************************************/ +/* audio_stream_opus.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* http://www.godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2015 Juan Linietsky, Ariel Manzur. */ +/* */ +/* Author: George Marques */ +/* */ +/* 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_opus.h" + +int AudioStreamPlaybackOpus::_op_read_func(void *_stream, unsigned char *_ptr, int _nbytes) { + FileAccess *fa=(FileAccess*)_stream; + + if(fa->eof_reached()) + return 0; + + uint8_t *dst = (uint8_t*)_ptr; + + int read = fa->get_buffer(dst, _nbytes); + + return read; +} + +int AudioStreamPlaybackOpus::_op_seek_func(void *_stream, opus_int64 _offset, int _whence){ + +#ifdef SEEK_SET + FileAccess *fa=(FileAccess*)_stream; + + switch (_whence) { + case SEEK_SET: { + fa->seek(_offset); + } break; + case SEEK_CUR: { + fa->seek(fa->get_pos()+_offset); + } break; + case SEEK_END: { + fa->seek_end(_offset); + } break; + default: { + ERR_PRINT("BUG, wtf was whence set to?\n"); + } + } + int ret=fa->eof_reached()?-1:0; + return ret; +#else + return -1; // no seeking +#endif +} + +int AudioStreamPlaybackOpus::_op_close_func(void *_stream) { + if (!_stream) + return 0; + FileAccess *fa=(FileAccess*)_stream; + if (fa->is_open()) + fa->close(); + return 0; +} + +opus_int64 AudioStreamPlaybackOpus::_op_tell_func(void *_stream) { + FileAccess *_fa = (FileAccess*)_stream; + return (opus_int64)_fa->get_pos(); +} + +void AudioStreamPlaybackOpus::_clear_stream() { + if(!stream_loaded) + return; + + op_free(opus_file); + _close_file(); + + stream_loaded=false; + stream_channels=1; + playing=false; +} + +void AudioStreamPlaybackOpus::_close_file() { + if (f) { + memdelete(f); + f=NULL; + } +} + +Error AudioStreamPlaybackOpus::_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 _err = 0; + + opus_file = op_open_callbacks(f,&_op_callbacks,NULL,0,&_err); + + switch (_err) { + case OP_EREAD: { // - Can't read the file. + memdelete(f); f=NULL; + ERR_FAIL_V( ERR_FILE_CANT_READ ); + } break; + case OP_EVERSION: // - Unrecognized version number. + case OP_ENOTFORMAT: // - Stream is not Opus data. + case OP_EIMPL : { // - Stream used non-implemented feature. + memdelete(f); f=NULL; + ERR_FAIL_V( ERR_FILE_UNRECOGNIZED ); + } break; + case OP_EBADLINK: // - Failed to find old data after seeking. + case OP_EBADTIMESTAMP: // - Timestamp failed the validity checks. + case OP_EBADHEADER: { // - Invalid or mising Opus bitstream header. + memdelete(f); f=NULL; + ERR_FAIL_V( ERR_FILE_CORRUPT ); + } break; + case OP_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; +} + +AudioStreamPlaybackOpus::AudioStreamPlaybackOpus() { + loops=false; + playing=false; + f = NULL; + stream_loaded=false; + stream_valid=false; + repeats=0; + paused=true; + stream_channels=0; + current_section=0; + length=0; + loop_restart_time=0; + pre_skip=0; + + _op_callbacks.read = _op_read_func; + _op_callbacks.seek = _op_seek_func; + _op_callbacks.tell = _op_tell_func; + _op_callbacks.close = _op_close_func; +} + +Error AudioStreamPlaybackOpus::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 _err; + + opus_file = op_open_callbacks(f,&_op_callbacks,NULL,0,&_err); + + switch (_err) { + case OP_EREAD: { // - Can't read the file. + memdelete(f); f=NULL; + ERR_FAIL_V( ERR_FILE_CANT_READ ); + } break; + case OP_EVERSION: // - Unrecognized version number. + case OP_ENOTFORMAT: // - Stream is not Opus data. + case OP_EIMPL : { // - Stream used non-implemented feature. + memdelete(f); f=NULL; + ERR_FAIL_V( ERR_FILE_UNRECOGNIZED ); + } break; + case OP_EBADLINK: // - Failed to find old data after seeking. + case OP_EBADTIMESTAMP: // - Timestamp failed the validity checks. + case OP_EBADHEADER: { // - Invalid or mising Opus bitstream header. + memdelete(f); f=NULL; + ERR_FAIL_V( ERR_FILE_CORRUPT ); + } break; + case OP_EFAULT: { // - Internal logic fault; indicates a bug or heap/stack corruption. + memdelete(f); f=NULL; + ERR_FAIL_V( ERR_BUG ); + } break; + } + + const OpusHead *oinfo = op_head(opus_file,-1); + + stream_channels=oinfo->channel_count; + pre_skip=oinfo->pre_skip; + frames_mixed=pre_skip; + ogg_int64_t len = op_pcm_total(opus_file,-1); + if(len < 0) { + length = 0; + } else { + length=(len/osrate); + } + + op_free(opus_file); + memdelete(f); + f=NULL; + stream_valid=true; + + + return OK; +} + +void AudioStreamPlaybackOpus::play(float p_from) { + if (playing) + stop(); + + if (_load_stream()!=OK) + return; + + frames_mixed=pre_skip; + playing=true; + if (p_from>0) { + seek_pos(p_from); + } +} + +void AudioStreamPlaybackOpus::stop() { + _clear_stream(); + playing=false; +} + +void AudioStreamPlaybackOpus::seek_pos(float p_time) { + if(!playing) return; + ogg_int64_t pcm_offset = (ogg_int64_t)(p_time * osrate); + bool ok = op_pcm_seek(opus_file,pcm_offset)==0; + if(!ok) { + ERR_PRINT("Seek time over stream size."); + return; + } + frames_mixed=osrate*p_time; +} + +int AudioStreamPlaybackOpus::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 || todochannel_count; + + frames_mixed+=ret; + + p_bufer+=ret*stream_channels; + p_frames-=ret; + + } + + return total-p_frames; +} + +float AudioStreamPlaybackOpus::get_length() const { + if(!stream_loaded) { + if(const_cast(this)->_load_stream() != OK) + return 0; + } + return length; +} + +float AudioStreamPlaybackOpus::get_pos() const { + + int32_t frames = int32_t(frames_mixed); + if (frames < 0) + frames=0; + return double(frames) / osrate; +} + +int AudioStreamPlaybackOpus::get_minimum_buffer_size() const { + return MIN_MIX; +} + +AudioStreamPlaybackOpus::~AudioStreamPlaybackOpus() { + _clear_stream(); +} + +RES ResourceFormatLoaderAudioStreamOpus::load(const String &p_path, const String& p_original_path, Error *r_error) { + if (r_error) + *r_error=OK; + + AudioStreamOpus *opus_stream = memnew(AudioStreamOpus); + opus_stream->set_file(p_path); + return Ref(opus_stream); +} + +void ResourceFormatLoaderAudioStreamOpus::get_recognized_extensions(List *p_extensions) const { + + p_extensions->push_back("opus"); +} +String ResourceFormatLoaderAudioStreamOpus::get_resource_type(const String &p_path) const { + + if (p_path.extension().to_lower()=="opus") + return "AudioStreamOpus"; + return ""; +} + +bool ResourceFormatLoaderAudioStreamOpus::handles_type(const String& p_type) const { + return (p_type=="AudioStream" || p_type=="AudioStreamOpus"); +} -- cgit v1.2.3 From c69afe49488d81909495f6cef487fb369bf31f49 Mon Sep 17 00:00:00 2001 From: ZuBsPaCe Date: Sat, 3 Oct 2015 00:38:43 +0200 Subject: Fixes following Visual Studio 2013 compile error on windows: audio_stream_opus.h(57) : error C2864: 'AudioStreamPlaybackOpus::osrate' : a static data member with an in-class initializer must have non-volatile const integral type See: http://stackoverflow.com/questions/2454019/why-arent-static-const-floats-allowed --- drivers/opus/audio_stream_opus.cpp | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/opus/audio_stream_opus.cpp') diff --git a/drivers/opus/audio_stream_opus.cpp b/drivers/opus/audio_stream_opus.cpp index be31420453..eb9c81e152 100644 --- a/drivers/opus/audio_stream_opus.cpp +++ b/drivers/opus/audio_stream_opus.cpp @@ -30,6 +30,8 @@ /*************************************************************************/ #include "audio_stream_opus.h" +const float AudioStreamPlaybackOpus::osrate=48000.0f; + int AudioStreamPlaybackOpus::_op_read_func(void *_stream, unsigned char *_ptr, int _nbytes) { FileAccess *fa=(FileAccess*)_stream; -- cgit v1.2.3