On Thu, Jul 16, 2020 at 12:39:03 -0500, fowman wrote: > Just this, but then it's the only one I have :-)
It can't be that difficult to find other 1280x720 recodings, can it? Or to create your own? > Here is ffprobe info: > > Original .ts file recorded by my Humax: > Stream #0:0[0x931]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), > yuv420p(tv), 704x576 [SAR 16:11 DAR 16:9], max. 15000 kb/s, 25 fps, 25 tbr, > 90k tbn, 50 tbc > > 1280x720 .mp4 exported from OpenShot: > Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, > 14925 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default) That doesn't tell me whether the content includes boxes. Unless you run it through the cropdetect filter. > I realise that the original .ts video is actually letterboxed, although the > vertical side bars are pretty narrow. I've always assumed that letterboxing > referred to the top and bottom horizontal bars and was just a side effect of > playing a widescreen movie in a 16:9 or 4:3 display. I'm not referring to a side effect. I meant true black "boxes" or borders, included in the encoded frames. What often used to happen was that (true) 16:9 content was amended with bars to make it 4:3. If you then play that (4:3 enconding) fullscreen on a 16:9 screen, you will have the explicit top/bottom bars, and newly introduced left/right bars, to fill the encoded 4:3 back up to 16:9, instead of snipping something away, obviously. In total, this would give you a big box around your content, despite full screen. In your case, there might be a big box there (which we could see if we saw the actual viedo), or said "clean-aperture" (CLAP) marking, which could have funny effects. Come to think of it, those effects should be opposite, i.e. the clean aperture should enforce cropping of non-displayable segments. Moritz _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
