I'd like to make a CPU-efficient computer vision application based on a H264 stream.
I have two ideas and wanted to get feedback on their feasibility: *Idea 1 - temporal subsampling* 1. Read the stream into a buffer. 2. Decode only the I-frames. 3. Process the I-frames 4. If some conditions apply - decode the entire Group Of Pictures for that I-Frame. *Idea 2 - spatial subsampling* 1. Decode ROIs from the H264 stream / or decode low resolution images from the H264 stream. 2. Process and if some conditions apply 3. Fully decode the buffered stream. So my questions are: 1. Can Idea 1 and Idea 2 be done? Can they be done with libav ? 2. Am I likely to decrease CPU consumption in this way. Thanks much ! _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
