jailers/jaildoctors_dilemma
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Actualizado Jail_Audio

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Sergio
2022-11-08 18:45:45 +01:00
parent d32170f7cf
commit 164dfe1e54
2 changed files with 23 additions and 11 deletions
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33
source/common/jail_audio.cpp
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@@ -32,6 +32,7 @@ int JA_freq {48000};
SDL_AudioFormat JA_format {AUDIO_S16};
Uint8 JA_channels {2};
int JA_volume = 128;
SDL_AudioDeviceID sdlAudioDevice = 0;
void audioCallback(void * userdata, uint8_t * stream, int len) {
SDL_memset(stream, 0, len);
@@ -74,13 +75,19 @@ void JA_Init(const int freq, const SDL_AudioFormat format, const int channels) {
JA_format = format;
JA_channels = channels;
SDL_AudioSpec audioSpec{JA_freq, JA_format, JA_channels, 0, 1024, 0, 0, audioCallback, NULL};
SDL_AudioDeviceID sdlAudioDevice = SDL_OpenAudioDevice(NULL, 0, &audioSpec, NULL, 0);
if (sdlAudioDevice != 0) SDL_CloseAudioDevice(sdlAudioDevice);
sdlAudioDevice = SDL_OpenAudioDevice(NULL, 0, &audioSpec, NULL, 0);
SDL_PauseAudioDevice(sdlAudioDevice, 0);
}
void JA_Quit() {
SDL_PauseAudioDevice(sdlAudioDevice, 1);
if (sdlAudioDevice != 0) SDL_CloseAudioDevice(sdlAudioDevice);
sdlAudioDevice = 0;
}
JA_Music JA_LoadMusic(const char* filename) {
int chan, samplerate;
JA_Music music = new JA_Music_t();
// [RZC 28/08/22] Carreguem primer el arxiu en memòria i després el descomprimim. Es algo més rapid.
FILE *f = fopen(filename, "rb");
@@ -88,8 +95,11 @@ JA_Music JA_LoadMusic(const char* filename) {
long fsize = ftell(f);
fseek(f, 0, SEEK_SET);
Uint8 *buffer = (Uint8*)malloc(fsize + 1);
fread(buffer, fsize, 1, f);
if (fread(buffer, fsize, 1, f)!=1) return NULL;
fclose(f);
JA_Music music = new JA_Music_t();
music->samples = stb_vorbis_decode_memory(buffer, fsize, &chan, &samplerate, &music->output);
free(buffer);
// [RZC 28/08/22] Abans el descomprimiem mentre el teniem obert
@@ -97,13 +107,14 @@ JA_Music JA_LoadMusic(const char* filename) {
SDL_AudioCVT cvt;
SDL_BuildAudioCVT(&cvt, AUDIO_S16, chan, samplerate, JA_format, JA_channels, JA_freq);
cvt.len = music->samples * chan * 2;
cvt.buf = (Uint8 *) SDL_malloc(cvt.len * cvt.len_mult);
SDL_memcpy(cvt.buf, music->output, cvt.len);
SDL_ConvertAudio(&cvt);
free(music->output);
music->output = (short*)cvt.buf;
if (cvt.needed) {
cvt.len = music->samples * chan * 2;
cvt.buf = (Uint8 *) SDL_malloc(cvt.len * cvt.len_mult);
SDL_memcpy(cvt.buf, music->output, cvt.len);
SDL_ConvertAudio(&cvt);
free(music->output);
music->output = (short*)cvt.buf;
}
music->pos = 0;
music->state = JA_MUSIC_STOPPED;
@@ -144,7 +155,7 @@ JA_Music_state JA_GetMusicState() {
void JA_DeleteMusic(JA_Music music) {
if (current_music == music) current_music = NULL;
SDL_free(music->output);
free(music->output);
delete music;
}

1
source/common/jail_audio.h
View File

@@ -8,6 +8,7 @@ typedef struct JA_Sound_t *JA_Sound;
typedef struct JA_Music_t *JA_Music;
void JA_Init(const int freq, const SDL_AudioFormat format, const int channels);
void JA_Quit();
JA_Music JA_LoadMusic(const char* filename);
void JA_PlayMusic(JA_Music music, const int loop = -1);