The present disclosure describes techniques of processing video. The techniques comprise obtaining a video to be transcoded, the video comprising a plurality of frames; setting a test object in each of the plurality of frames of the video to be transcoded; transcoding the video using a predetermined video transcoding mechanism and obtaining the transcoded video; extracting a test object from each of a plurality of frames of the transcoded video; and determining a transcoding result based at least in part on the test object extracted from each of the plurality of frames of the transcoded video.