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Audio issues solved... Audio Works!

This commit is contained in:
raysan5 2013-12-01 12:34:31 +01:00
parent ac31ce148f
commit f79beffc34
7 changed files with 88 additions and 72 deletions
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4
examples/ex08_audio.c
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@ -2,6 +2,8 @@
*
* raylib example 08 - Audio loading and playing
*
* NOTE: This example requires OpenAL32 dll installed (or in the same folder)
*
* This example has been created using raylib 1.0 (www.raylib.com)
* raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
*
@ -22,7 +24,7 @@ int main()
InitAudioDevice(); // Initialize audio device
Sound fx = LoadSound("resources/coin.wav"); // Load WAV audio file
Sound fx = LoadSound("resources/weird.wav"); // Load WAV audio file
//--------------------------------------------------------------------------------------
// Main game loop

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examples/ex08_audio.exe
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examples/resources/weird.wav Normal file
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6
release/win32-mingw/include/raylib.h
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@ -50,8 +50,6 @@
#ifndef RAYLIB_H
#define RAYLIB_H
#define NO_AUDIO // Audio is still being tested, deactivated by default
//----------------------------------------------------------------------------------
// Some basic Defines
//----------------------------------------------------------------------------------
@ -367,8 +365,6 @@ void DrawBillboardRec(Camera camera, Texture2D texture, Rectangle sourceRec, Vec
void DrawHeightmap(Image heightmap, Vector3 centerPos, Vector3 scale, Color color); // REVIEW: Draw heightmap using image map (raylib 1.x)
void DrawHeightmapEx(Image heightmap, Texture2D texture, Vector3 centerPos, Vector3 scale, Color tint); // REVIEW: Draw textured heightmap (raylib 1.x)
#ifndef NO_AUDIO
//------------------------------------------------------------------------------------
// Audio Loading and Playing Functions (Module: audio)
//------------------------------------------------------------------------------------
@ -381,8 +377,6 @@ void PlaySoundEx(Sound sound, float timePosition, bool loop); // Play a sound
void PauseSound(Sound sound); // Pause a sound
void StopSound(Sound sound); // Stop playing a sound
#endif // NO_AUDIO
#ifdef __cplusplus
}
#endif

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release/win32-mingw/lib/libraylib.a
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144
src/audio.c
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@ -51,6 +51,7 @@ typedef struct Wave {
unsigned char *data; // Buffer data pointer
unsigned int sampleRate;
unsigned int dataSize;
short bitsPerSample;
short channels;
short format;
} Wave;
@ -133,15 +134,16 @@ Sound LoadSound(char *fileName)
// The OpenAL format is worked out by looking at the number of channels and the bits per sample
if (wave.channels == 1)
{
if (wave.sampleRate == 8 ) format = AL_FORMAT_MONO8;
else if (wave.sampleRate == 16) format = AL_FORMAT_MONO16;
if (wave.bitsPerSample == 8 ) format = AL_FORMAT_MONO8;
else if (wave.bitsPerSample == 16) format = AL_FORMAT_MONO16;
}
else if (wave.channels == 2)
{
if (wave.sampleRate == 8 ) format = AL_FORMAT_STEREO8;
else if (wave.sampleRate == 16) format = AL_FORMAT_STEREO16;
if (wave.bitsPerSample == 8 ) format = AL_FORMAT_STEREO8;
else if (wave.bitsPerSample == 16) format = AL_FORMAT_STEREO16;
}
// Create an audio source
ALuint source;
alGenSources(1, &source); // Generate pointer to audio source
@ -158,7 +160,7 @@ Sound LoadSound(char *fileName)
alGenBuffers(1, &buffer); // Generate pointer to buffer
// Upload sound data to buffer
alBufferData(buffer, format, wave.data, wave.dataSize, wave.sampleRate);
alBufferData(buffer, format, (void*)wave.data, wave.dataSize, wave.sampleRate);
// Attach sound buffer to source
alSourcei(source, AL_BUFFER, buffer);
@ -168,7 +170,6 @@ Sound LoadSound(char *fileName)
printf("Sample rate: %i\n", wave.sampleRate);
printf("Channels: %i\n", wave.channels);
printf("Format: %i\n", wave.format);
printf("Audio file loaded...!\n");
@ -229,71 +230,96 @@ void StopSound(Sound sound)
// Load WAV file into Wave structure
static Wave LoadWAV(char *fileName)
{
Wave wave;
FILE *wavFile;
// Basic WAV headers structs
typedef struct {
char chunkID[4];
long chunkSize;
char format[4];
} RiffHeader;
typedef struct {
char subChunkID[4];
long subChunkSize;
short audioFormat;
short numChannels;
long sampleRate;
long byteRate;
short blockAlign;
short bitsPerSample;
} WaveFormat;
typedef struct {
char subChunkID[4];
long subChunkSize;
} WaveData;
RiffHeader riffHeader;
WaveFormat waveFormat;
WaveData waveData;
Wave wave;
FILE *wavFile;
wavFile = fopen(fileName, "rb");
if (!wavFile)
{
printf("Could not load WAV file.\n");
printf("Could not open WAV file.\n");
exit(1);
}
// Read in the first chunk into the struct
fread(&riffHeader, sizeof(RiffHeader), 1, wavFile);
// Check for RIFF and WAVE tags
if ((riffHeader.chunkID[0] != 'R' ||
riffHeader.chunkID[1] != 'I' ||
riffHeader.chunkID[2] != 'F' ||
riffHeader.chunkID[3] != 'F') ||
(riffHeader.format[0] != 'W' ||
riffHeader.format[1] != 'A' ||
riffHeader.format[2] != 'V' ||
riffHeader.format[3] != 'E'))
printf("Invalid RIFF or WAVE Header");
// Read in the 2nd chunk for the wave info
fread(&waveFormat, sizeof(WaveFormat), 1, wavFile);
unsigned char id[4]; // Four bytes to hold 'RIFF' and 'WAVE' (and other ids)
// Check for fmt tag
if (waveFormat.subChunkID[0] != 'f' ||
waveFormat.subChunkID[1] != 'm' ||
waveFormat.subChunkID[2] != 't' ||
waveFormat.subChunkID[3] != ' ')
printf("Invalid Wave Format");
// Check for extra parameters;
if (waveFormat.subChunkSize > 16)
fseek(wavFile, sizeof(short), SEEK_CUR);
// Read in the the last byte of data before the sound file
fread(&waveData, sizeof(WaveData), 1, wavFile);
unsigned int size = 0; // File size (useless)
// Check for data tag
if (waveData.subChunkID[0] != 'd' ||
waveData.subChunkID[1] != 'a' ||
waveData.subChunkID[2] != 't' ||
waveData.subChunkID[3] != 'a')
printf("Invalid data header");
// Allocate memory for data
wave.data = (unsigned char *)malloc(sizeof(unsigned char) * waveData.subChunkSize);
// Read in the sound data into the soundData variable
fread(wave.data, waveData.subChunkSize, 1, wavFile);
short format;
short channels;
short blockAlign;
short bitsPerSample;
unsigned int formatLength;
unsigned int sampleRate;
unsigned int avgBytesSec;
unsigned int dataSize;
// Now we set the variables that we need later
wave.dataSize = waveData.subChunkSize;
wave.sampleRate = waveFormat.sampleRate;
wave.channels = waveFormat.numChannels;
wave.bitsPerSample = waveFormat.bitsPerSample;
fread(id, sizeof(unsigned char), 4, wavFile); // Read the first four bytes
if ((id[0] != 'R') || (id[1] != 'I') || (id[2] != 'F') || (id[3] != 'F'))
{
printf("Invalid RIFF file.\n"); // If not "RIFF" id, exit
exit(1);
}
fread(&size, sizeof(unsigned int), 1, wavFile); // Read file size
fread(id, sizeof(unsigned char), 4, wavFile); // Read the next id
if ((id[0] != 'W') || (id[1] != 'A') || (id[2] != 'V') || (id[3] != 'E'))
{
printf("Invalid WAVE file.\n"); // If not "WAVE" id, exit
exit(1);
}
fread(id, sizeof(unsigned char), 4, wavFile); // Read 4 bytes id "fmt "
fread(&formatLength, sizeof(unsigned int),1,wavFile); // Read format lenght
fread(&format, sizeof(short), 1, wavFile); // Read format tag
fread(&channels, sizeof(short), 1, wavFile); // Read num channels (1 mono, 2 stereo)
fread(&sampleRate, sizeof(unsigned int), 1, wavFile); // Read sample rate (44100, 22050, etc...)
fread(&avgBytesSec, sizeof(short), 1, wavFile); // Read average bytes per second (probably won't need this)
fread(&blockAlign, sizeof(short), 1, wavFile); // Read block alignment (probably won't need this)
fread(&bitsPerSample, sizeof(short), 1, wavFile); // Read bits per sample (8 bit or 16 bit)
fread(id, sizeof(unsigned char), 4, wavFile); // Read 4 bytes id "data"
fread(&dataSize, sizeof(unsigned int), 1, wavFile); // Read data size (in bytes)
wave.sampleRate = sampleRate;
wave.dataSize = dataSize;
wave.channels = channels;
wave.format = format;
wave.data = (unsigned char *)malloc(sizeof(unsigned char) * dataSize); // Allocate the required bytes to store data
fread(wave.data, sizeof(unsigned char), dataSize, wavFile); // Read the whole sound data chunk
return wave;
}
}
// Unload WAV file data
static void UnloadWAV(Wave wave)

6
src/raylib.h
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@ -50,8 +50,6 @@
#ifndef RAYLIB_H
#define RAYLIB_H
#define NO_AUDIO // Audio is still being tested, deactivated by default
//----------------------------------------------------------------------------------
// Some basic Defines
//----------------------------------------------------------------------------------
@ -367,8 +365,6 @@ void DrawBillboardRec(Camera camera, Texture2D texture, Rectangle sourceRec, Vec
void DrawHeightmap(Image heightmap, Vector3 centerPos, Vector3 scale, Color color); // REVIEW: Draw heightmap using image map (raylib 1.x)
void DrawHeightmapEx(Image heightmap, Texture2D texture, Vector3 centerPos, Vector3 scale, Color tint); // REVIEW: Draw textured heightmap (raylib 1.x)
#ifndef NO_AUDIO
//------------------------------------------------------------------------------------
// Audio Loading and Playing Functions (Module: audio)
//------------------------------------------------------------------------------------
@ -381,8 +377,6 @@ void PlaySoundEx(Sound sound, float timePosition, bool loop); // Play a sound
void PauseSound(Sound sound); // Pause a sound
void StopSound(Sound sound); // Stop playing a sound
#endif // NO_AUDIO
#ifdef __cplusplus
}
#endif