Esempi in C++ (Cpp) per SDL_Android_AudioTrack_write_byte

Esempio n. 1

File: ijksdl_aout_android_audiotrack.c Progetto: eblislu/ijkplayer

static int aout_thread_n(JNIEnv *env, SDL_Aout *aout)
{
    SDL_Aout_Opaque *opaque = aout->opaque;
    SDL_Android_AudioTrack *atrack = opaque->atrack;
    SDL_AudioCallback audio_cblk = opaque->spec.callback;
    void *userdata = opaque->spec.userdata;
    uint8_t *buffer = opaque->buffer;
    int copy_size = opaque->buffer_size;

    assert(atrack);
    assert(buffer);

    SDL_SetThreadPriority(SDL_THREAD_PRIORITY_HIGH);

    if (!opaque->abort_request && !opaque->pause_on)
        SDL_Android_AudioTrack_play(env, atrack);

    while (!opaque->abort_request) {
        SDL_LockMutex(opaque->wakeup_mutex);
        if (!opaque->abort_request && opaque->pause_on) {
            SDL_Android_AudioTrack_pause(env, atrack);
            while (!opaque->abort_request && opaque->pause_on) {
                SDL_CondWaitTimeout(opaque->wakeup_cond, opaque->wakeup_mutex, 1000);
            }
            if (!opaque->abort_request && !opaque->pause_on)
                SDL_Android_AudioTrack_play(env, atrack);
        }
        if (opaque->need_flush) {
            opaque->need_flush = 0;
            SDL_Android_AudioTrack_flush(env, atrack);
        }
        if (opaque->need_set_volume) {
            opaque->need_set_volume = 0;
            SDL_Android_AudioTrack_set_volume(env, atrack, opaque->left_volume, opaque->right_volume);
        }
        SDL_UnlockMutex(opaque->wakeup_mutex);

        audio_cblk(userdata, buffer, copy_size);
        if (opaque->need_flush) {
            SDL_Android_AudioTrack_flush(env, atrack);
            opaque->need_flush = false;
        }

        if (opaque->need_flush) {
            opaque->need_flush = 0;
            SDL_Android_AudioTrack_flush(env, atrack);
        } else {
            int written = SDL_Android_AudioTrack_write_byte(env, atrack, buffer, copy_size);
            if (written != copy_size) {
                ALOGW("AudioTrack: not all data copied %d/%d", (int)written, (int)copy_size);
            }
        }

        // TODO: 1 if callback return -1 or 0
    }

    SDL_Android_AudioTrack_free(env, atrack);
    return 0;
}

Esempio n. 2

File: android_audiotrack.c Progetto: JimmyYao1984/ijkplayer

int SDL_Android_AudioTrack_write(JNIEnv *env, SDL_Android_AudioTrack *atrack, uint8_t *data, int size_in_byte)
{
    int ret = 0;
    if (atrack->spec.audio_format == ENCODING_PCM_FLOAT) {
        ret = SDL_Android_AudioTrack_write_float(env, atrack, data, size_in_byte / sizeof(jfloat));
        if (ret > 0)
            ret *= sizeof(jfloat);
    } else {
        ret = SDL_Android_AudioTrack_write_byte(env, atrack, data, size_in_byte);
    }
    return ret;
}