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audio test

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This commit is contained in:
MihailRis
2024-02-27 23:29:09 +03:00
parent 4a233d72ed
commit b809c2df84
10 changed files with 215 additions and 195 deletions
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src/audio/ALAudio.cpp
+6 -4
View File
@@ -24,6 +24,7 @@ Speaker* ALSound::newInstance(int priority) const {
if (source == 0) {
return nullptr;
}
AL_CHECK(alSourcei(source, AL_BUFFER, buffer));
return new ALSpeaker(al, source, priority);
}
@@ -146,7 +147,7 @@ ALAudio::~ALAudio() {
}
AL_CHECK(alcMakeContextCurrent(context));
AL_CHECK(alcDestroyContext(context));
alcDestroyContext(context);
if (!alcCloseDevice(device)) {
std::cerr << "AL: device not closed!" << std::endl;
}
@@ -155,8 +156,10 @@ ALAudio::~ALAudio() {
}
Sound* ALAudio::createSound(std::shared_ptr<PCM> pcm, bool keepPCM) {
// TODO: implement
return nullptr;
auto format = AL::to_al_format(pcm->channels, pcm->bitsPerSample);
uint buffer = getFreeBuffer();
AL_CHECK(alBufferData(buffer, format, pcm->data.data(), pcm->data.size(), pcm->sampleRate));
return new ALSound(this, buffer, pcm, keepPCM);
}
ALAudio* ALAudio::create() {
@@ -187,7 +190,6 @@ uint ALAudio::getFreeSource(){
alGenSources(1, &id);
if (!AL_GET_ERORR())
return 0;
allsources.push_back(id);
return id;
}
src/audio/ALAudio.h
+4
View File
@@ -111,6 +111,10 @@ namespace audio {
) override;
void update(double delta) override;
bool isDummy() const override {
return true;
}
static ALAudio* create();
};
src/audio/NoAudio.h
+4
View File
@@ -39,6 +39,10 @@ namespace audio {
void update(double delta) override {}
bool isDummy() const override {
return true;
}
static NoAudio* create();
};
}
src/audio/alutil.cpp
-165
View File
@@ -14,27 +14,6 @@
#include <AL/alc.h>
#endif
bool is_big_endian(void){
uint32_t ui32_v = 0x01020304;
char bytes[sizeof(uint32_t)];
std::memcpy(bytes, &ui32_v, sizeof(uint32_t));
return bytes[0] == 1;
}
std::int32_t convert_to_int(char* buffer, std::size_t len){
std::int32_t a = 0;
if (!is_big_endian()) {
std::memcpy(&a, buffer, len);
}
else {
for (std::size_t i = 0; i < len; ++i) {
reinterpret_cast<char*>(&a)[3 - i] = buffer[i];
}
}
return a;
}
bool AL::check_errors(const std::string& filename, const std::uint_fast32_t line){
ALenum error = alGetError();
if(error != AL_NO_ERROR){
@@ -63,147 +42,3 @@ bool AL::check_errors(const std::string& filename, const std::uint_fast32_t line
}
return true;
}
bool load_wav_file_header(std::ifstream& file,
std::uint8_t& channels,
std::int32_t& sampleRate,
std::uint8_t& bitsPerSample,
ALsizei& size){
char buffer[4];
if(!file.is_open())
return false;
// the RIFF
if(!file.read(buffer, 4)){
std::cerr << "ERROR: could not read RIFF" << std::endl;
return false;
}
if(std::strncmp(buffer, "RIFF", 4) != 0){
std::cerr << "ERROR: file is not a valid WAVE file (header doesn't begin with RIFF)" << std::endl;
return false;
}
// the size of the file
if(!file.read(buffer, 4)){
std::cerr << "ERROR: could not read size of file" << std::endl;
return false;
}
// the WAVE
if(!file.read(buffer, 4)){
std::cerr << "ERROR: could not read WAVE" << std::endl;
return false;
}
if(std::strncmp(buffer, "WAVE", 4) != 0){
std::cerr << "ERROR: file is not a valid WAVE file (header doesn't contain WAVE)" << std::endl;
return false;
}
// "fmt/0"
if(!file.read(buffer, 4)){
std::cerr << "ERROR: could not read fmt/0" << std::endl;
return false;
}
// this is always 16, the size of the fmt data chunk
if(!file.read(buffer, 4)){
std::cerr << "ERROR: could not read the 16" << std::endl;
return false;
}
// PCM should be 1?
if(!file.read(buffer, 2)){
std::cerr << "ERROR: could not read PCM" << std::endl;
return false;
}
// the number of channels
if(!file.read(buffer, 2)){
std::cerr << "ERROR: could not read number of channels" << std::endl;
return false;
}
channels = convert_to_int(buffer, 2);
// sample rate
if(!file.read(buffer, 4)){
std::cerr << "ERROR: could not read sample rate" << std::endl;
return false;
}
sampleRate = convert_to_int(buffer, 4);
// (sampleRate * bitsPerSample * channels) / 8
if(!file.read(buffer, 4)){
std::cerr << "ERROR: could not read (sampleRate * bitsPerSample * channels) / 8" << std::endl;
return false;
}
// ?? dafaq
if(!file.read(buffer, 2)){
std::cerr << "ERROR: could not read dafaq" << std::endl;
return false;
}
// bitsPerSample
if(!file.read(buffer, 2)){
std::cerr << "ERROR: could not read bits per sample" << std::endl;
return false;
}
bitsPerSample = convert_to_int(buffer, 2);
// data chunk header "data"
if(!file.read(buffer, 4)){
std::cerr << "ERROR: could not read data chunk header" << std::endl;
return false;
}
if(std::strncmp(buffer, "data", 4) != 0){
std::cerr << "ERROR: file is not a valid WAVE file (doesn't have 'data' tag)" << std::endl;
return false;
}
// size of data
if(!file.read(buffer, 4)){
std::cerr << "ERROR: could not read data size" << std::endl;
return false;
}
size = convert_to_int(buffer, 4);
/* cannot be at the end of file */
if(file.eof()){
std::cerr << "ERROR: reached EOF on the file" << std::endl;
return false;
}
if(file.fail()){
std::cerr << "ERROR: fail state set on the file" << std::endl;
return false;
}
return true;
}
// after that user must free returned memory by himself!
char* load_wav(
const std::string& filename,
std::uint8_t& channels,
std::int32_t& sampleRate,
std::uint8_t& bitsPerSample,
ALsizei& size
){
std::ifstream in(filename, std::ios::binary);
if(!in.is_open()){
std::cerr << "ERROR: Could not open \"" << filename << "\"" << std::endl;
return nullptr;
}
if(!load_wav_file_header(in, channels, sampleRate, bitsPerSample, size)){
std::cerr << "ERROR: Could not load wav header of \"" << filename << "\"" << std::endl;
return nullptr;
}
std::unique_ptr<char[]> data (new char[size]);
try {
in.read(data.get(), size);
return data.release();
}
catch (const std::exception&) {
std::cerr << "ERROR: Could not load wav data of \"" << filename << "\"" << std::endl;
return nullptr;
}
}
src/audio/alutil.h
+2 -19
View File
@@ -16,23 +16,6 @@
#define AL_CHECK(STATEMENT) STATEMENT; AL::check_errors(__FILE__, __LINE__)
#define AL_GET_ERORR() AL::check_errors(__FILE__, __LINE__)
bool load_wav_file_header(
std::ifstream& file,
std::uint8_t& channels,
std::int32_t& sampleRate,
std::uint8_t& bitsPerSample,
ALsizei& size
);
char* load_wav(
const std::string& filename,
std::uint8_t& channels,
std::int32_t& sampleRate,
std::uint8_t& bitsPerSample,
ALsizei& size
);
namespace AL {
bool check_errors(const std::string& filename, const std::uint_fast32_t line);
@@ -69,10 +52,10 @@ namespace AL {
return value;
}
static inline ALenum to_al_format(short channels, short samples){
static inline ALenum to_al_format(short channels, short bitsPerSample){
bool stereo = (channels > 1);
switch (samples) {
switch (bitsPerSample) {
case 16:
if (stereo)
return AL_FORMAT_STEREO16;
src/audio/audio.cpp
+20 -4
View File
@@ -1,10 +1,13 @@
#include "audio.h"
#include <iostream>
#include <stdexcept>
#include "ALAudio.h"
#include "NoAudio.h"
#include "../coders/wav.h"
namespace audio {
static speakerid_t nextId = 1;
static Backend* backend;
@@ -23,6 +26,19 @@ void audio::initialize(bool enabled) {
}
}
PCM* audio::loadPCM(const fs::path& file, bool headerOnly) {
std::string ext = file.extension().u8string();
if (ext == ".wav" || ext == ".WAV") {
return wav::load_pcm(file, headerOnly);
} // TODO: OGG support
throw std::runtime_error("unsupported audio format");
}
Sound* audio::loadSound(const fs::path& file, bool keepPCM) {
std::shared_ptr<PCM> pcm(loadPCM(file, !keepPCM && backend->isDummy()));
return backend->createSound(pcm, keepPCM);
}
Sound* audio::createSound(std::shared_ptr<PCM> pcm, bool keepPCM) {
return backend->createSound(pcm, keepPCM);
}
@@ -40,7 +56,7 @@ void remove_lower_priority_speaker(int priority) {
for (auto it = speakers.begin(); it != speakers.end();) {
if (it->second->getPriority() < priority && it->second->isPaused()) {
it->second->stop();
speakers.erase(it);
it = speakers.erase(it);
return;
}
it++;
@@ -48,7 +64,7 @@ void remove_lower_priority_speaker(int priority) {
for (auto it = speakers.begin(); it != speakers.end();) {
if (it->second->getPriority() < priority) {
it->second->stop();
speakers.erase(it);
it = speakers.erase(it);
return;
}
it++;
@@ -72,7 +88,7 @@ speakerid_t audio::play(
return 0;
}
speakerid_t id = nextId++;
speakers[id].reset(speaker);
speakers.emplace(id, speaker);
speaker->setPosition(position);
speaker->setVolume(volume);
speaker->setPitch(pitch);
@@ -94,7 +110,7 @@ void audio::update(double delta) {
for (auto it = speakers.begin(); it != speakers.end();) {
if (it->second->isStopped()) {
speakers.erase(it);
it = speakers.erase(it);
} else {
it++;
}
src/audio/audio.h
+37 -3
View File
@@ -3,9 +3,12 @@
#include <vector>
#include <memory>
#include <filesystem>
#include <glm/glm.hpp>
#include "../typedefs.h"
namespace fs = std::filesystem;
namespace audio {
using speakerid_t = int64_t;
/// @brief duration unit is second
@@ -32,12 +35,23 @@ namespace audio {
uint8_t bitsPerSample;
uint sampleRate;
PCM(
std::vector<char> data,
uint8_t channels,
uint8_t bitsPerSample,
uint sampleRate
) : data(std::move(data)),
channels(channels),
bitsPerSample(bitsPerSample),
sampleRate(sampleRate) {}
constexpr inline size_t countSamples() const {
return data.size() / channels / (bitsPerSample / 8);
}
constexpr inline duration_t getDuration() const {
return countSamples() / static_cast<duration_t>(sampleRate);
return static_cast<duration_t>(countSamples()) /
static_cast<duration_t>(sampleRate);
}
};
@@ -157,16 +171,33 @@ namespace audio {
) = 0;
virtual void update(double delta) = 0;
/// @brief Check if backend is an abstraction that does not internally
/// work with actual audio data or play anything
virtual bool isDummy() const = 0;
};
/// @brief Initialize audio system or use no audio mode
/// @param enabled try to initialize actual audio
extern void initialize(bool enabled);
/// @brief Load audio file info and PCM data
/// @param file audio file
/// @param headerOnly read header only
/// @throws std::runtime_error if I/O error ocurred or format is unknown
/// @return PCM audio data
extern PCM* loadPCM(const fs::path& file, bool headerOnly);
/// @brief Load sound from file
/// @param file audio file path
/// @param keepPCM store PCM data in sound to make it accessible with Sound::getPCM
/// @throws std::runtime_error if I/O error ocurred or format is unknown
/// @return new Sound instance
extern Sound* loadSound(const fs::path& file, bool keepPCM);
/// @brief Create new sound from PCM data
/// @param pcm PCM data
/// @param keepPCM store PCM data in sound to make it accessible with
/// Sound::getPCM
/// @param keepPCM store PCM data in sound to make it accessible with Sound::getPCM
/// @return new Sound instance
extern Sound* createSound(std::shared_ptr<PCM> pcm, bool keepPCM);
@@ -200,6 +231,9 @@ namespace audio {
int priority
);
/// @brief Get speaker by id
/// @param id speaker id
/// @return speaker or nullptr
extern Speaker* get(speakerid_t id);
/// @brief Update audio streams and sound instanced