Downloaded videos from YouTube are not rewound, for example, in MX Player
But they are not added to kinemaster, because it says that the video is too short. And in the gallery he writes that the video lasts 0 seconds
reproduction steps
1 download video YouTube
screenshots
No response
links
platform information
Chrome 134.0.6998.109 Android 10; POCOPHONE F1 Build/QKQ1.190828.002
additional context
No response
Originally created by @omerika867 on GitHub (Mar 25, 2025).
Original GitHub issue: https://github.com/imputnet/cobalt/issues/1193
### bug description
Downloaded videos from YouTube are not rewound, for example, in MX Player
But they are not added to kinemaster, because it says that the video is too short. And in the gallery he writes that the video lasts 0 seconds
### reproduction steps
1 download video YouTube
### screenshots
_No response_
### links
```shell
```
### platform information
Chrome 134.0.6998.109 Android 10; POCOPHONE F1 Build/QKQ1.190828.002
### additional context
_No response_
noticed this has been happening for a good while. Messenger on mobile, for example, also treats it as an empty video. Vegas Pro shows the audio track but the video track is just a couple frames, however any regular video player plays it fine. A remux does fix it, but damn, that takes ages compared to just remuxing with ffmpeg
<!-- gh-comment-id:2763357741 -->
@jericjan commented on GitHub (Mar 29, 2025):
noticed this has been happening for a good while. Messenger on mobile, for example, also treats it as an empty video. Vegas Pro shows the audio track but the video track is just a couple frames, however any regular video player plays it fine. A remux does fix it, but damn, that takes ages compared to just remuxing with ffmpeg
that takes ages compared to just remuxing with ffmpeg
cobalt's remuxing is almost instant on desktop, or are you talking about running it on an android phone in chrome?
<!-- gh-comment-id:2763372185 -->
@wukko commented on GitHub (Mar 29, 2025):
> that takes ages compared to just remuxing with ffmpeg
cobalt's remuxing is almost instant on desktop, or are you talking about running it on an android phone in chrome?
Yeah, it's pretty slow on mobile. On PC, maybe my CPU was too old. To be fair, I didn't even give it a chance to finish. It took so long that I exited it when it took longer than ffmpeg and still didn't reach the part where it shows the remux progress (or maybe that doesn't display on PC)
<!-- gh-comment-id:2763863616 -->
@jericjan commented on GitHub (Mar 29, 2025):
Yeah, it's pretty slow on mobile. On PC, maybe my CPU was too old. To be fair, I didn't even give it a chance to finish. It took so long that I exited it when it took longer than ffmpeg and still didn't reach the part where it shows the remux progress (or maybe that doesn't display on PC)
There are issues in downloads with VP9 and AV1 codecs. MediaInfo shows "conformance errors"
Conformance errors : 2
0x8538067 : Yes
General compliance : Element size 72057594037927935 is more than maximal permitted size 1461845012 (offset 0x30)
Matroska : Yes
General compliance : File size 1461845060 is less than expected size at least 72057594037927983 (offset0x30)
Rewind causes stutters and some parts of video cannot be viewed.
H.264 downloads don't have such issues.
<!-- gh-comment-id:2764788733 -->
@WanHaes commented on GitHub (Mar 30, 2025):
There are issues in downloads with VP9 and AV1 codecs. MediaInfo shows "conformance errors"
```
Conformance errors : 2
0x8538067 : Yes
General compliance : Element size 72057594037927935 is more than maximal permitted size 1461845012 (offset 0x30)
Matroska : Yes
General compliance : File size 1461845060 is less than expected size at least 72057594037927983 (offset0x30)
```
Rewind causes stutters and some parts of video cannot be viewed.
H.264 downloads don't have such issues.
For me, H.264 is still problematic. I already had it set to H.264 when I noticed all these problems
<!-- gh-comment-id:2764798341 -->
@jericjan commented on GitHub (Mar 30, 2025):
For me, H.264 is still problematic. I already had it set to H.264 when I noticed all these problems
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Originally created by @omerika867 on GitHub (Mar 25, 2025).
Original GitHub issue: https://github.com/imputnet/cobalt/issues/1193
bug description
Downloaded videos from YouTube are not rewound, for example, in MX Player
But they are not added to kinemaster, because it says that the video is too short. And in the gallery he writes that the video lasts 0 seconds
reproduction steps
1 download video YouTube
screenshots
No response
links
platform information
Chrome 134.0.6998.109 Android 10; POCOPHONE F1 Build/QKQ1.190828.002
additional context
No response
@jericjan commented on GitHub (Mar 29, 2025):
noticed this has been happening for a good while. Messenger on mobile, for example, also treats it as an empty video. Vegas Pro shows the audio track but the video track is just a couple frames, however any regular video player plays it fine. A remux does fix it, but damn, that takes ages compared to just remuxing with ffmpeg
@wukko commented on GitHub (Mar 29, 2025):
cobalt's remuxing is almost instant on desktop, or are you talking about running it on an android phone in chrome?
@jericjan commented on GitHub (Mar 29, 2025):
Yeah, it's pretty slow on mobile. On PC, maybe my CPU was too old. To be fair, I didn't even give it a chance to finish. It took so long that I exited it when it took longer than ffmpeg and still didn't reach the part where it shows the remux progress (or maybe that doesn't display on PC)
@WanHaes commented on GitHub (Mar 30, 2025):
There are issues in downloads with VP9 and AV1 codecs. MediaInfo shows "conformance errors"
Rewind causes stutters and some parts of video cannot be viewed.
H.264 downloads don't have such issues.
@jericjan commented on GitHub (Mar 30, 2025):
For me, H.264 is still problematic. I already had it set to H.264 when I noticed all these problems