Can't read MP4

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nikkkomercado

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Can't read MP4

PostThu Aug 03, 2017 2:43 am

So I had a bunch of projects in DaVinci Resolve 12.5, with .mp4 clips imported to the media pools and timelines. All of them were working properly. They played fine and all. I always used to import .mp4 (H.264) files in Resolve without encountering any problems.

But suddenly all the imported media files in all projects went "Media offline" when I was eating chicken nuggets this morning. I did not rename, move, or modify any video file. All the clips are where they were before this issue came. I did not tamper with the video files. So why did this happen?

Also, ANY .mp4 file wouldn't even import in Resolve anymore. Unlike before, when they worked fine. I also tried dragging a new .mp4 file (which is what I used to do to import) into the media pool but nothing happened. The video didn't import. The video didn't appear in the media pool. Again, I had no issues with importing before.

What I have tried:
-Restarting computer
-Deleting CacheClip folder and all its files within it
-Relinking clips (still didn't work! Weird!)
-Dragging in a new .mp4 file into media pool
-Changing media storage directory in 'Preferences'
-Exiting and relaunching DaVinci Resolve 12.5
-Making sure that the video files weren't renamed or changed
ALL OF THESE DIDN'T WORK FOR ME

Additional notes:
-Imported audio files still work. They play fine.
-How can I reinstall DaVinci Resolve without deleting the projects? I still need my projects.
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Moa van Ginhoven

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Re: Can't read MP4

PostTue Sep 19, 2017 11:11 pm

Have you tried eating a new batch of chicken nuggets?

But more seriously, I have searched far and wide on the internet for a solution, I have the same issue, only I installed the program and it did this to me straight away (no chicken nor nuggets were involved). My suspicion is therefore, that said chickens and nuggets might not be the cause of our shared misery, but rather some codec problem. Not one that wants to be resolved, it appears. Have you also an amd card with ample memory and a cpu with amazing prowess in crunching numbers?

All I need the program for, is editing my phone's video. Transcoding the format did not work for me, but I am a noob in such matters.

I wonder if anyone will respond with a solution, since it is getting me down.
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Jack Fairley

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Re: Can't read MP4

PostWed Sep 20, 2017 12:29 am

Moa van Ginhoven wrote:All I need the program for, is editing my phone's video. Transcoding the format did not work for me, but I am a noob in such matters.

I wonder if anyone will respond with a solution, since it is getting me down.

It's almost certain that your phone is recording variable framerate video. This won't work in Resolve, but I hear it's supported in more consumer oriented NLEs like Sony Vegas.
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Dwaine Maggart

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Re: Can't read MP4

PostWed Sep 20, 2017 12:36 am

Can you see the mp4 files on the Media page in the Media Storage area? If you select one, does it appear in the Viewer?

Can you send us the info mentioned in this thread?

viewtopic.php?f=21&t=54509
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Moa van Ginhoven

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Re: Can't read MP4

PostWed Sep 20, 2017 10:06 pm

Hi,
thank you for responding.
Is this all you need?

Windows 7 64bit SP1
RX480 8GB
R7 1800x 8 core
16gb Ram
Resolve 14 version 14.0.0.078
Image

Kind regards,
Moa
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Moa van Ginhoven

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Re: Can't read MP4

PostWed Sep 20, 2017 10:31 pm

Oh that seems to have gone awry. I'll just post the link to the screenshot then, shall I.
https://imgur.com/a/hH0do
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Dwaine Maggart

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Re: Can't read MP4

PostThu Sep 21, 2017 3:11 am

We don't support Windows 7.

You can install this Win7 update, if it's not already on your system, and I would guess it would have a good chance of fixing this specific issue.

https://support.microsoft.com/en-sg/kb/2670838
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Moa van Ginhoven

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Re: Can't read MP4

PostThu Sep 21, 2017 9:11 pm

Dwaine Maggart wrote:We don't support Windows 7.

You can install this Win7 update, if it's not already on your system, and I would guess it would have a good chance of fixing this specific issue.

https://support.microsoft.com/en-sg/kb/2670838


Windows won't let me install that update, since they are a cancer to everything that is good and nice.
How disappointing all of this is. I spent more hours trying to get it installed on Tumbleweed, which is an opensuse distro.
Let me guess: it isn't supported.
I'm going to give up, it is obviously only meant for a certain kind of user, which off course, I am not. :|
Thanks for the advice given.
Uninstalling.
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Uli Plank

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Re: Can't read MP4

PostFri Sep 22, 2017 12:16 am

Works very well on W10. Or a Mac.
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Moa van Ginhoven

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Re: Can't read MP4

PostSun Sep 24, 2017 5:45 pm

Uli Plank wrote:Works very well on W10. Or a Mac.

I actually bit off even more of the bitter bits and installed windows 10.
So no, it doesn't. Maybe I should buy a Mac to use this program?
I mean, come on! :cry:


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Uli Plank

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Re: Can't read MP4

PostSun Sep 24, 2017 10:42 pm

Can you upload a clip for testing, to a service like Dropbox or WeTransfer?

Even if i'm on a Mac, I'd like to have a look at what might be the problem.
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Senziar Edits

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Re: Can't read MP4

PostSat Jan 26, 2019 10:40 am

You said it works on mac. It doesn't, please help me I need it for a video..
Moa van Ginhoven wrote:
Uli Plank wrote:Works very well on W10. Or a Mac.

I actually bit off even more of the bitter bits and installed windows 10.
So no, it doesn't. Maybe I should buy a Mac to use this program?
I mean, come on! :cry:


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Dwaine Maggart

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Re: Can't read MP4

PostWed Jan 30, 2019 7:45 pm

Details?
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Oxnard

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Re: Can't read MP4

PostTue Dec 24, 2019 8:44 pm

I've been using Resolve on a PC for a while. All my video sources come from the same place, SlingStudio in MP4 format. I have several projects with MP4 clips, they all work fine. Recently, my MP4 files dump (media offline) with chicken nuggets. This is for new projects. Legacy projects look great, with plenty of MP4 in them. I've checked the attributes for 'working' and non-working clips, all the parameters are the same. Sure wish this could be fixed, transcoding mp4 to avi (or other format) is as pain, as it takes 10-15 minutes for this extra step.
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Dwaine Maggart

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Re: Can't read MP4

PostThu Dec 26, 2019 5:29 pm

What version of Resolve are you using? And is it the Studio or free version?

Can you provide a link to a sample file which is not working for you?
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Dieter Scheel

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Re: Can't read MP4

PostThu Dec 26, 2019 9:33 pm

Moa van Ginhoven wrote:Windows won't let me install that update, since they are a cancer to everything that is good and nice.
How disappointing all of this is. I spent more hours trying to get it installed on Tumbleweed, which is an opensuse distro.
Let me guess: it isn't supported.
I'm going to give up, it is obviously only meant for a certain kind of user, which off course, I am not. :|
Thanks for the advice given.
Uninstalling.


Really? You use a dead OS which is no longer supported by MS and you blame Blackmagic not supporting it? That's plain stupid. And yes, DaVinci Resolve runs very well in Linux, Windows 10 and Mac. So blame yourself and not others.
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mari_koy

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Re: Can't read MP4

PostThu Jan 30, 2020 8:36 pm

Had got the same problem. I use Davinchi and now can't add overlays for effects or another mp4 videos. The program adds only audio from my mp4 to the timeline. I had used the same overlays from this pack in Davinchi some time ago and they were working ok! They are mp4, codec should be ok for Dv. I had upgraded Dv to 16, but the problem had stayed. I can only create NEW timeline with the mp4 video file of mp4 overlay, but I need it on the timeline with my video as the 2nd layer. Even can't copy it from 2nd tmln and paste to 1st tmln. Would like to show you screenshot. My computer is Mac air, OS Catalina (I hope the problem is not about the OS)). I have free version from official Black magic site.
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Dwaine Maggart

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Re: Can't read MP4

PostFri Jan 31, 2020 2:24 am

The majority of H.264 codecs are 8 bit. And those work with free Resolve 16 on Catalina.

But 10 bit H.264 files don't work with free Resolve 16 on Catalina. (But 10 bit H.265 files do. Go figure).

10 bit H.264 files work on High Sierra with free Resolve 16.

The 10 bit issue may be related to the codec support changes made in Catalina.

If you'd like to share a link to an .mp4 file that's not working for you, we'd love to see it and verify what the issue is. Probably they are 10 bit H.264 files, but we can tell for sure if we have a sample.
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Marc Wielage

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Re: Can't read MP4

PostFri Jan 31, 2020 2:25 am

mari_koy wrote:Had got the same problem. I use Davinchi and now can't add overlays for effects or another mp4 videos. The program adds only audio from my mp4 to the timeline. I had used the same overlays from this pack in Davinchi some time ago and they were working ok! They are mp4, codec should be ok for Dv.

MP4 is just a container, and it could hold almost anything. Most of the H.264-related codecs are compatible, but some are not. Resolve Studio can handle more formats than the free version.

https://en.wikipedia.org/wiki/MPEG-4_Part_14
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mari_koy

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Re: Can't read MP4

PostMon Feb 03, 2020 7:59 pm

Marc Wielage wrote:MP4 is just a container, and it could hold almost anything. Most of the H.264-related codecs are compatible, but some are not. Resolve Studio can handle more formats than the free version.

https://en.wikipedia.org/wiki/MPEG-4_Part_14


Thanks. I had tried different codecs, but everything that should work and had worked in Dv before was failed(( And it's 8 bit so it should work even with Catalina OS :cry:
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mari_koy

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Re: Can't read MP4

PostMon Feb 03, 2020 8:02 pm

Dwaine Maggart wrote:The majority of H.264 codecs are 8 bit. And those work with free Resolve 16 on Catalina.

But 10 bit H.264 files don't work with free Resolve 16 on Catalina. (But 10 bit H.265 files do. Go figure).
....

If you'd like to share a link to an .mp4 file that's not working for you, we'd love to see it and verify what the issue is. Probably they are 10 bit H.264 files, but we can tell for sure if we have a sample.


Thanks! Theese files are 8 bit. There are some of my overlays I can't use now (and also have some mp4 files converted from my camera, but I think the problem is the same): https://yadi.sk/d/kz_t0CTnfgefYw
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Dwaine Maggart

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Re: Can't read MP4

PostTue Feb 04, 2020 6:36 pm

Your files work OK here on a Mac trashcan running Catalina 10.15.3 with free Resolve 16.1.2.

Re-reading your original message, you mentioned something about you could only create a "new" timeline and use the files.

Does that mean that if you select the files in the Media Storage area of the Media page, you can see them in the Viewer, but they are not working in some other fashion?
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mari_koy

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Re: Can't read MP4

PostWed Feb 05, 2020 12:13 am

Dwaine Maggart wrote:Your files work OK here on a Mac trashcan running Catalina 10.15.3 with free Resolve 16.1.2.

Re-reading your original message, you mentioned something about you could only create a "new" timeline and use the files.

Does that mean that if you select the files in the Media Storage area of the Media page, you can see them in the Viewer, but they are not working in some other fashion?


I'd renovated my OS to Catalina 10.15.3 and Davinchi 16.1.2.026 so we have the same conditions. And yes, I can see the files in the Viewer, but they are not working on the timeline (except creating the individual timeline for them).
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Dwaine Maggart

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Re: Can't read MP4

PostWed Feb 05, 2020 12:29 am

I'm not sure what that means. Can you provide a screen shot or screen video that shows the issue?
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mari_koy

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Re: Can't read MP4

PostMon Feb 10, 2020 11:41 pm

It looks like this: I can add the audio from this file only
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7138a579-5546-4cf5-9cf5-93fa9446dba4.jpeg
7138a579-5546-4cf5-9cf5-93fa9446dba4.jpeg (71.11 KiB) Viewed 1110 times
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Dwaine Maggart

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Re: Can't read MP4

PostTue Feb 11, 2020 1:21 am

Does that mean that if you select that file on the Media page in the Media Storage area at the top, that you don't see the video in the Viewer?
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mari_koy

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Re: Can't read MP4

PostSat Feb 22, 2020 4:37 pm

Yes, don't see. And had you checked my files?
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Uli Plank

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Re: Can't read MP4

PostSun Feb 23, 2020 2:06 am

Those three "VHS" files work fine here in DR Studio.
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mari_koy

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Re: Can't read MP4

PostTue Feb 25, 2020 2:11 am

oh, what else can be wrong in mine?(
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Dwaine Maggart

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Re: Can't read MP4

PostTue Feb 25, 2020 4:53 am

You asked if I checked your files. I did mention that they worked in Resolve free 16.1.2 on Catalina.

Here is a screen shot of your 3 files on a timeline:

mari_files.png
mari_files.png (106.57 KiB) Viewed 763 times


I would also note that your screenshot is not using one of these files, but a different file.

So I would speculate that the file in your screenshot is a file not compatible with free Resolve.

If you'd like to provide a link to that file, we can check it as well.
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activist

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Re: Can't read MP4

PostThu Mar 26, 2020 7:30 am

Dwaine Maggart wrote:So I would speculate that the file in your screenshot is a file not compatible with free Resolve.

If you'd like to provide a link to that file, we can check it as well.


Hi Dwaine.

Please have a look at this thread.
I can provide you with a file if needed.
DR Free 16.1.2.026, Win10Pro64, i7-4790/3.60Ghz/24Gb, AMD Radeon Pro Duo 32Gb, SSD HD
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Dwaine Maggart

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Re: Can't read MP4

PostThu Mar 26, 2020 3:55 pm

Yes, please provide a file. I'll verify if it's an issue of not being supported in free Resolve.
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Re: Can't read MP4

PostThu Mar 26, 2020 10:08 pm

Dwaine Maggart wrote:Yes, please provide a file. I'll verify if it's an issue of not being supported in free Resolve.

Great!
Here is the file I used to test. MEGA's server can read it. Shows me thumbnail and allows me to play it in browser.
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Dwaine Maggart

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Re: Can't read MP4

PostThu Mar 26, 2020 11:01 pm

That file type (10 bit H.264) is not supported on free Resolve. Works fine with Resolve Studio.
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Re: Can't read MP4

PostSat Mar 28, 2020 1:02 pm

Dwaine Maggart wrote:That file type (10 bit H.264) is not supported on free Resolve. Works fine with Resolve Studio.

Thank you for clearing this up!

Resolve should definitely prompt the user about it.
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