C++ (Cpp) VideoScaler Examples

Example #1

File: shm_sink.cpp Project: ThereIsNoYeti/sflphone

void SHMSink::render_frame(VideoFrame& src)
{
    VideoFrame dst;
    VideoScaler scaler;

    const int width = src.getWidth();
    const int height = src.getHeight();
    const int format = VIDEO_PIXFMT_BGRA;
    size_t bytes = dst.getSize(width, height, format);

    shm_lock();

    if (!resize_area(sizeof(SHMHeader) + bytes)) {
        ERROR("Could not resize area");
        return;
    }

    dst.setDestination(shm_area_->data, width, height, format);
    scaler.scale(src, dst);

#ifdef DEBUG_FPS
    const std::chrono::time_point<std::chrono::system_clock> currentTime = std::chrono::system_clock::now();
    const std::chrono::duration<double> seconds = currentTime - lastFrameDebug_;
    frameCount_++;
    if (seconds.count() > 1) {
        DEBUG("%s: FPS %f", shm_name_.c_str(), frameCount_ / seconds.count());
        frameCount_ = 0;
        lastFrameDebug_ = currentTime;
    }
#endif

    shm_area_->buffer_size = bytes;
    shm_area_->buffer_gen++;
    sem_post(&shm_area_->notification);
    shm_unlock();
}