OpenCV Q&A Forum - RSS feed answersenCopyright <a href="">OpenCV foundation</a>, 2012-2018.Fri, 23 Dec 2016 08:02:54 -0600Videowriter recording MP4 + X264 (OpenCV 3.1)'m trying to record a video with the X264 codec and MP4 format. The resulting video recording works, and can be played with a videoplayer, however I receive following warning. OpenCV: FFMPEG: tag 0x34363258/'X264' is not supported with codec id 28 and format 'mp4 / MP4 (MPEG-4 Part 14)' OpenCV: FFMPEG: fallback to use tag 0x00000021/'!???' I've been looking in the OpenCV code and it looks that a fallback mechanism is used (and another tag is used instead). Can someone tell me why this is happening, and how I can remove the warning. Thanks! CédriccedricverstFri, 23 Dec 2016 08:02:54 -0600