Aaron Boxer via ffmpeg-user wrote: > I am able to play back mj2 clips with ffmpeg; can I also create mj2 files > by converting from say mp4 ?
No, unfortunately that's not supported. Excerpt from the output of ``ffmpeg -formats'': D mov,mp4,m4a,3gp,3g2,mj2 QuickTime / MOV The "D" in the first column means that FFmpeg can only read these files, but not write them. Basically, .mj2 files are just MP4 containers (or Quicktime) with frames that are JPEG-2000 images. There are also "raw" MJPEG2k files, but FFmpeg cannot write them either (this is a raw stream of JPEG2k images): D mjpeg_2000 raw MJPEG 2000 video Just out of curiosity, why do you need to create MJPEG2k files? In general, I recommend against doing that, unless you need it for compatibility with a certain piece of hardware or software that isn’t able to handle anything else. Best regards -- Oliver _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
