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Prevent audio buffer overflow

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rdanbrook 2021-03-07 13:41:38 -05:00
parent 7ea89ddaad
commit b97614ab34
1 changed files with 8 additions and 5 deletions
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13
source/sdl/audio.cpp
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@ -27,8 +27,8 @@
#include "config.h"
#include "audio.h"
#define IBUFSIZE 3200
#define EBUFSIZE 6400
#define IBUFSIZE 4800
#define EBUFSIZE 9600
extern Emulator emulator;
@ -47,6 +47,8 @@ static int framerate, channels, bufsize;
static bool paused = false;
void audio_queue() {
while ((bufsamples + bufsize) >= EBUFSIZE) { SDL_Delay(1); }
SDL_LockAudioDevice(dev);
for (int i = 0; i < bufsize; i++) {
extbuf[bufend] = intbuf[i];
@ -79,13 +81,13 @@ void audio_deinit() {
void audio_init_sdl() {
spec.freq = conf.audio_sample_rate;
spec.format = AUDIO_S16SYS;
spec.channels = channels;
spec.channels = 1;
spec.silence = 0;
spec.samples = 512;
spec.userdata = 0;
spec.callback = audio_cb;
bufsize = channels * (conf.audio_sample_rate / framerate);
bufsize = 1 * (conf.audio_sample_rate / framerate);
dev = SDL_OpenAudioDevice(NULL, 0, &spec, &obtained, SDL_AUDIO_ALLOW_ANY_CHANGE);
if (!dev) {
@ -125,7 +127,8 @@ void audio_set_params(Sound::Output *soundoutput) {
Sound sound(emulator);
sound.SetSampleBits(16);
sound.SetSampleRate(conf.audio_sample_rate);
//sound.SetSampleRate(conf.audio_sample_rate);
sound.SetSampleRate(48000);
sound.SetSpeaker(conf.audio_stereo ? Sound::SPEAKER_STEREO : Sound::SPEAKER_MONO);
sound.SetSpeed(Sound::DEFAULT_SPEED);