Wrong duration of TS file

[PanMarSag]

Hello, i have a TS MPEG4 file that has duration 10:33, but actually it has duration 10:22. Can someone tell me how to repair that TS file so it has duration 10:33?

[ProWo]

upload it somewhere and post the link here

[LigH.de]

The problem is probably: MPEG TransferStream files have no keyframe seek index. Analysis tools usually will not scan the whole file from the beginning to the end to count every GOP with a timecode, that would take quite a long time. Instead they rather rely on a header field which reports a planned average bitrate and divide the file size by it to estimate the playing time.

Remultiplex this TS file to MP4 or MKV and you will get a reliable duration.

[PanMarSag]

Oh, and i forgot to add that in some parts of that TS file there's a glitch thing that skips frames or seconds of the video.

[LigH.de]

Possibly damaged data, if the source is really DVB.

[davexnet]

Have you tried making an MKV from it MKVtoolnix GUI? This often helps

[Nilzzon]

TMPGEnc MPEG Smart Renderer

[abolibibelot]

Oh, and i forgot to add that in some parts of that TS file there's a glitch thing that skips frames or seconds of the video.

It's only a glitch, a temporary setback.
(Today I learned... that the actor whose character got blown to pieces in that infamous scene almost got his balls blown off by a misplaced blood squib...)

[PanMarSag]

Okay, so i tried the TMPGEnc MPEG Smart Renderer and MKVToolnix and the original duration of the video was retained, but the video freezes on some minutes.

[davexnet]

Okay, so i tried the TMPGEnc MPEG Smart Renderer and MKVToolnix and the original duration of the video was retained, but the video freezes on some minutes.

This is because there is an underlying problem with the source


In ffmpeg perhaps something like this:

ffmpeg -fflags +genpts -i input.ts -vcodec copy -acodec copy "output.mkv"

[Nilzzon]

TsDoctor

[PanMarSag]

I tried ffmpeg and tsdoctor, but still, didn't fix it for me.

[davexnet]

I tried ffmpeg and tsdoctor, but still, didn't fix it for me.

Can you upload this file? How are you so sure what the length should be

[october262]

I tried ffmpeg and tsdoctor, but still, didn't fix it for me.

try re running your file through ffmpeg using this - ffmpeg -i input -c:v copy -c:a copy output and see if it corrects
the duration. - https://superuser.com/questions/863183/how-to-fix-ffmpeg-inaccurate-time-stamp-that-co...ail-generation

[PanMarSag]

I tried ffmpeg and tsdoctor, but still, didn't fix it for me.

try re running your file through ffmpeg using this - ffmpeg -i input -c:v copy -c:a copy output and see if it corrects
the duration. - https://superuser.com/questions/863183/how-to-fix-ffmpeg-inaccurate-time-stamp-that-co...ail-generation

I tried that too, but the duration is 39:14 and there are still skips in seconds.

[PanMarSag]

I tried MKVToolnix and the original duration is back, but there are still skips in seconds.

[LigH.de]

Well, as I already said ... if the source is Digital TV Broadcast, the reason might be signal drops. Then you lost some content.