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jack: Check for sample rate and buffer size changes from the server. 

Reference Issue #8344.
main
Ryan C. Gordon 2023-10-16 13:10:27 -04:00
parent 063cb0df6b
commit f26b838a3e
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GPG Key ID: FA148B892AB48044
1 changed files with 35 additions and 4 deletions
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39
src/audio/jack/SDL_jackaudio.c
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@ -43,6 +43,8 @@ static const char *(*JACK_jack_port_name)(const jack_port_t *);
static const char *(*JACK_jack_port_type)(const jack_port_t *);
static int (*JACK_jack_connect)(jack_client_t *, const char *, const char *);
static int (*JACK_jack_set_process_callback)(jack_client_t *, JackProcessCallback, void *);
static int (*JACK_jack_set_sample_rate_callback)(jack_client_t *, JackSampleRateCallback, void *);
static int (*JACK_jack_set_buffer_size_callback)(jack_client_t *, JackBufferSizeCallback, void *);
static int load_jack_syms(void);
@ -129,6 +131,8 @@ static int load_jack_syms(void)
SDL_JACK_SYM(jack_port_type);
SDL_JACK_SYM(jack_connect);
SDL_JACK_SYM(jack_set_process_callback);
SDL_JACK_SYM(jack_set_sample_rate_callback);
SDL_JACK_SYM(jack_set_buffer_size_callback);
return 0;
}
@ -138,9 +142,30 @@ static void jackShutdownCallback(void *arg) /* JACK went away; device is lost. *
SDL_AudioDeviceDisconnected((SDL_AudioDevice *)arg);
}
// !!! FIXME: implement and register these!
// typedef int(* JackSampleRateCallback)(jack_nframes_t nframes, void *arg)
// typedef int(* JackBufferSizeCallback)(jack_nframes_t nframes, void *arg)
static int jackSampleRateCallback(jack_nframes_t nframes, void *arg)
{
//SDL_Log("JACK Sample Rate Callback! %d", (int) nframes);
SDL_AudioDevice *device = (SDL_AudioDevice *) arg;
SDL_AudioSpec newspec;
SDL_copyp(&newspec, &device->spec);
newspec.freq = (int) nframes;
if (SDL_AudioDeviceFormatChanged(device, &newspec, device->sample_frames) < 0) {
SDL_AudioDeviceDisconnected(device);
}
return 0;
}
static int jackBufferSizeCallback(jack_nframes_t nframes, void *arg)
{
//SDL_Log("JACK Buffer Size Callback! %d", (int) nframes);
SDL_AudioDevice *device = (SDL_AudioDevice *) arg;
SDL_AudioSpec newspec;
SDL_copyp(&newspec, &device->spec);
if (SDL_AudioDeviceFormatChanged(device, &newspec, (int) nframes) < 0) {
SDL_AudioDeviceDisconnected(device);
}
return 0;
}
static int jackProcessPlaybackCallback(jack_nframes_t nframes, void *arg)
{
@ -341,7 +366,13 @@ static int JACK_OpenDevice(SDL_AudioDevice *device)
}
}
if (JACK_jack_set_process_callback(client, callback, device) != 0) {
if (JACK_jack_set_buffer_size_callback(client, jackBufferSizeCallback, device) != 0) {
SDL_free(audio_ports);
return SDL_SetError("JACK: Couldn't set buffer size callback");
} else if (JACK_jack_set_sample_rate_callback(client, jackSampleRateCallback, device) != 0) {
SDL_free(audio_ports);
return SDL_SetError("JACK: Couldn't set sample rate callback");
} else if (JACK_jack_set_process_callback(client, callback, device) != 0) {
SDL_free(audio_ports);
return SDL_SetError("JACK: Couldn't set process callback");
}