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ffmpeg's libx265 wrapper is very minimal, and doesn't pass on very many settings. e.g. -pass 1 requires manually setting -x265-params pass=1. Also, if x265 is anything like x264, don't use ultrafast except for lossless or for testing things. sorry for not taking the time to dig this up myself, but have a look and see if you can get your desired I frame ...


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A similar question came up before. I posted some of the same thing in my answer there. Is it possible to lower the H.264 video quality and bitrate without fully decoding and encoding it? H.264 B and P macroblocks reference frames that have already been processed by the deblocking filter. The deblocking strength is adaptive to the QP. I'm not sure, ...


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The least-lossy way should be to just stretch time, so your 25p becomes 24000/1001p. Then your video can go on a NTSC dvd with soft-telecining. The audio needs to be stretched to match, using a pitch-preserving method. (Soft TC means stored as progressive frames on the disc, with flags set to tell the player to apply a 3:2 pulldown if it needs to make 60i ...


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I personally would use media encoder and let it do the conversion. Convert it to a mpeg2-dvd format and pick a preset, you can adjust the preset to your liking. ME would do most of the heavy lifting. At this point I trust them to do the best job. I find that nothing beats actually trying it though, you're not really out anything but time. And very little ...


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You can use ffprobe (which comes with ffmpeg) to give you info about your movie files from the command line. You may require some shell-fu to convert the output of ffprobe into something you can use though. I've done this in the past; basically I pipe the output of ffprobe to sed or awk to grab the bits of info I need, then use this to drive the parameters ...


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Something you could try is to copy the VOB files from the DVD and concatenate them all into one MPEG file, then you can see if the original file is corrupted. Here's how: open your DVD in Finder, and navigate to the VIDEO_TS folder. Inside will be all the DVD files .BUP, IFS and VOB. The VOB files are the video objects, they're what you want. Now find ...



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