Remove warnings in recordvideo

        return meta;

    }

    virtual status_t start(MetaData *params) {

    virtual status_t start(MetaData *params __unused) {

        mNumFramesOutput = 0;

        return OK;

    }

    }

    virtual status_t read(

            MediaBuffer **buffer, const MediaSource::ReadOptions *options) {

            MediaBuffer **buffer, const MediaSource::ReadOptions *options __unused) {

        if (mNumFramesOutput % 10 == 0) {

            fprintf(stderr, ".");

        // We don't care about the contents. we just test video encoder

        // Also, by skipping the content generation, we can return from

        // read() much faster.

        //char x = (char)((double)rand() / RAND_MAX * 255);

        //memset((*buffer)->data(), x, mSize);

#if 0

        // iterate through solid planes of color.

        static unsigned char x = 0x60;

        memset((*buffer)->data(), x, mSize);

        x = x >= 0xa0 ? 0x60 : x + 1;

#endif

        (*buffer)->set_range(0, mSize);

        (*buffer)->meta_data()->clear();

        (*buffer)->meta_data()->setInt64(

    int level = -1;        // Encoder specific default

    int profile = -1;      // Encoder specific default

    int codec = 0;

    char *fileName = "/sdcard/output.mp4";

    const char *fileName = "/sdcard/output.mp4";

    bool preferSoftwareCodec = false;

    android::ProcessState::self()->startThreadPool();