Neither am I but I am trying to help.
I find it rather strange that Apple do not provide downloads for later versions.
But anyway, I have one suggestion for you. Now I would have preferred to use one of your vids since the ones I have do not exactly match yours. Like I previously stated, none of the 'similar' ones would play in my version of quicktime.
Yet I also have some h264 vids wrapped in a .mov container that do play. So I took one of the 'similar' ones and did a remux from the ffmpeg cmd since avidemux does not support the .mov container. And the remuxed video does indeed play.
So try that. If that does not work then I have no more ideas.
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Quicktime in 2016, and no longer supports it.
Apple confirms QuickTime for Windows at end of life | AppleInsider
With OSX, it's considered part of the OS, so you're unlikely to find a standalone install package or updater.If cameras add ten pounds, why would people want to eat them?
Would appreciate some feedback from the OP if my suggestion 'solved' his problem.
Well as a final try, would you, as requested, just upload a short sample of one of these troublesome vids - 20 secs should be enough - as an attachment
I appreciate that the video is mp4 but that is just a container. Just as .mov is another container. And all I know is that these vids, which I did not create myself, would not play as mp4 within Quicktime but did as mov. The major differences were cfr and a different lavf encoder.
I extracted the video as an elementary h.264 video stream (annexb). This is the mediainfo output:
General Complete name : /Users/joe/stage/corrupt.264 Format : AVC Format/Info : Advanced Video Codec File size : 469 MiB Video Format : AVC Format/Info : Advanced Video Codec Format profile : High@L3.1 Format settings : CABAC / 4 Ref Frames Format settings, CABAC : Yes Format settings, Reference frames : 4 frames Format settings, GOP : M=1, N=12 Width : 960 pixels Height : 544 pixels Display aspect ratio : 16:9 Frame rate mode : Variable Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive
Output of 'h264_analyze' tool for MP4 file: (first 100 KB)
Output of 'h264_analyze' tool for raw h264 file: (first 100 KB)
avcC header (extradata) of MP4 file:
61766343 0142C01F FFE20020 6742C01F 95A03C04 5B011000 003E9000 0EA60E00 000493E0 000493E1 BBCB8280 00176742 C01F5680 F0116C04 40000003 00400000 0E03C60C A8020004 68CE3C80 00046848 E3C8
Last edited by exekutive; 14th Jan 2022 at 05:03.
For the final time of asking, yes you have done some analysis. But sometimes a 2nd pair of eyes might spot something you have overlooked.
Really, what objection do you have not to upload a short sample ? You have been around here long enough to appreciate that is a standard procedure.
Apple periodically publishes updates to its codec software. For example in 2018 they added support for XAVC, AVCHD, AVC-ULTRA, and others...
Unless you have a change of heart, I am outa here.
But just think on this.........
You may never know.
Had a quick look at the output of h264_analyze that you posted:
=> stream got 8x8 DCT macroblocks which isn't supported by Quicktime
=> non square pixels, at least old QuickTime 7 does not support SAR (sample aspect ratio) information in MPEG-4 files; it assumes that SAR=1, Quicktime X should support it.
=> more than one b-frames, which is not supported by Quicktime
Just any document that might provide information about QT v10.5 capabilities.
May be asking Apple developer support can give some hints,....
Cu Selurusers currently on my ignore list: deadrats, Stears555
I'm going to look for some other sample MP4 files with these properties , to verify that's why my files won't play.
Does anybody know where I might find some?
Or maybe ffmpeg has some options so I can generate it myself ....
No clue whether anybody ever bothered to create a proper list. Apple wouldn't do such a thing as they only write what they can do not what they can not.
And you're right... Apple is not very generous with information.
I have discovered how run multiple instances of VLC player, so I think I'll be using it more. IINA is also a pretty good player. Quicktime will be put somewhere on the back shelf