Author Topic: "Flashing sequence of pictures" instead of smooth video resulted...  (Read 2146 times)

eumagga0x2a

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Re: "Flashing sequence of pictures" instead of smooth video resulted...
« Reply #30 on: September 23, 2018, 05:36:20 PM »
Thanks, the smallest "1GB" chunk (1,073,880,064 bytes) is 240640 bytes smaller than the largest (1,074,120,704), and even the smallest is bigger than 1 GiB (what "GB" on Windows stands for) = 1,073,741,824 bytes. If chunks happen to be within 1 MiB tolerance from n GiB in size we might re-enable prompting for binary append in the demuxer without getting too many false positives.

EFuggerth

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Re: "Flashing sequence of pictures" instead of smooth video resulted...
« Reply #31 on: September 23, 2018, 09:10:44 PM »
I have checked several other film-folders, and have found 2 chunks smaller than has already been passed: they are 1 073 831 936 and 1 073 783 808 bytes. Moreover, chunk-size is not at random: the size of 1 073 880 064 bytes appeared on 3 more occasions. Also is worth checking: dividing sizes with the smallest difference [48,128 bytes] always gives integer. The new biggest I could extract is 1 074 216 960 bytes.
I remain thus expectant – and patient as well.
Both in chunk-size recognition and on treating false time-marker jumps.

eumagga0x2a

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Re: "Flashing sequence of pictures" instead of smooth video resulted...
« Reply #32 on: September 26, 2018, 05:05:02 PM »
Auto-append in the MpegTS demuxer, now restricted to video streams split approximately at GiB boundaries as produced by some devices like action cams, has been re-enabled and should be available for testing in future nightly builds.

EFuggerth

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Re: "Flashing sequence of pictures" instead of smooth video resulted...
« Reply #33 on: October 01, 2018, 04:00:27 PM »
I’m jump-ready for testing.
Meanwhile, here is another admlog.zip file, where the unpredictable time-marker behaviour happened twice: at first when dropping the beginning part of the raw source-file, then on trying to mark the end (as described earlier).

eumagga0x2a

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Re: "Flashing sequence of pictures" instead of smooth video resulted...
« Reply #34 on: October 01, 2018, 05:46:46 PM »
Do you always need an append operation to reproduce rewind on stopping playback? I don't think a log will suffice, please provide a sample + exact steps to reproduce.

What you saw was mostly a result of failed seeks due to corrupted video stream so far. The behavior at the boundary of two segments might deserve more attention, however.
« Last Edit: October 01, 2018, 05:58:43 PM by eumagga0x2a »