> FFmpeg is correct, there is absolutely no doubt about it: This "active" > pixels nonsense is only relevant for certain very specific media, definitely > not when encoding testsrc and decoding the result to showinfo. Demuxers or > high-level tools may know when they are dealing with that kind of content, > but encoders do not.
This is ridiculous. It's an incredible double standard that FFmpeg will "fix" severely broken files, yet the basics of digital video that have been around for decades are just ignored because they are inconvenient. Testsrc is wrong then - note how downscaled HD test sequences like parkjoy have 9 pixels of border when downscaled to SD - because it follows the BT601 spec. Where do you think 720x576 (or similar) content comes from? Magic fairies that just happen to render at this resolution. No - it comes from cameras that have an active picture of 702x576. Kieran _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel