C++ (Cpp) CA_GET_STR 예제들

예제 #1

파일: ao_coreaudio_utils.c 프로젝트: AddictXQ/mpv

void ca_get_device_list(struct ao *ao, struct ao_device_list *list)
{
    AudioDeviceID *devs;
    size_t n_devs;
    OSStatus err =
        CA_GET_ARY(kAudioObjectSystemObject, kAudioHardwarePropertyDevices,
                   &devs, &n_devs);
    CHECK_CA_ERROR("Failed to get list of output devices.");
    for (int i = 0; i < n_devs; i++) {
        if (!ca_is_output_device(ao, devs[i]))
            continue;
        void *ta_ctx = talloc_new(NULL);
        char *name;
        char *desc;
        err = CA_GET_STR(devs[i], kAudioDevicePropertyDeviceUID, &name);
        if (err != noErr) {
            MP_VERBOSE(ao, "skipping device %d, which has no UID\n", i);
            talloc_free(ta_ctx);
            continue;
        }
        talloc_steal(ta_ctx, name);
        err = CA_GET_STR(devs[i], kAudioObjectPropertyName, &desc);
        if (err != noErr)
            desc = talloc_strdup(NULL, "Unknown");
        talloc_steal(ta_ctx, desc);
        ao_device_list_add(list, ao, &(struct ao_device_desc){name, desc});
        talloc_free(ta_ctx);
    }

예제 #2

파일: ao_coreaudio_utils.c 프로젝트: jon-y/mpv

OSStatus ca_select_device(struct ao *ao, char* name, AudioDeviceID *device)
{
    OSStatus err = noErr;
    int selection = name ? strtol(name, (char **)NULL, 10) : -1;
    if (errno == EINVAL || errno == ERANGE) {
        selection = -1;
        MP_WARN(ao, "device identifier '%s' is invalid\n", name);
    }
    *device = 0;
    if (selection < 0) {
        // device not set by user, get the default one
        err = CA_GET(kAudioObjectSystemObject,
                     kAudioHardwarePropertyDefaultOutputDevice,
                     device);
        CHECK_CA_ERROR("could not get default audio device");
    } else {
        *device = selection;
    }

    if (mp_msg_test(ao->log, MSGL_V)) {
        char *desc;
        err = CA_GET_STR(*device, kAudioObjectPropertyName, &desc);
        CHECK_CA_ERROR("could not get selected audio device name");

        MP_VERBOSE(ao, "selected audio output device: %s (%" PRIu32 ")\n",
                       desc, *device);

        talloc_free(desc);
    }

coreaudio_error:
    return err;
}

예제 #3

파일: ao_coreaudio.c 프로젝트: BILIHUBSU/mpv

static bool reinit_device(struct ao *ao) {
    struct priv *p = ao->priv;

    OSStatus err = ca_select_device(ao, ao->device, &p->device);
    CHECK_CA_ERROR("failed to select device");

    char *uid;
    err = CA_GET_STR(p->device, kAudioDevicePropertyDeviceUID, &uid);
    CHECK_CA_ERROR("failed to get device UID");
    ao->detected_device = talloc_steal(ao, uid);

    return true;

coreaudio_error:
    return false;
}

예제 #4

파일: ao_coreaudio_utils.c 프로젝트: jon-y/mpv

void ca_get_device_list(struct ao *ao, struct ao_device_list *list)
{
    AudioDeviceID *devs;
    size_t n_devs;
    OSStatus err =
        CA_GET_ARY(kAudioObjectSystemObject, kAudioHardwarePropertyDevices,
                   &devs, &n_devs);
    CHECK_CA_ERROR("Failed to get list of output devices.");
    for (int i = 0; i < n_devs; i++) {
        char name[32];
        char *desc;
        sprintf(name, "%d", devs[i]);
        err = CA_GET_STR(devs[i], kAudioObjectPropertyName, &desc);
        if (err != noErr)
            desc = "Unknown";
        ao_device_list_add(list, ao, &(struct ao_device_desc){name, desc});
    }