Premiere Pro 2020 Won't Import Some .MP4 Files After Windows Reinstall

New Here ,
Mar 31, 2020

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I've had Premiere Pro CC running fine on Windows 10 Pro.  I've had to reinstall Windows and subsequently, reinstalled CC. 

 

Now some MP4 files that worked in Premiere Pro prior to the reinstall no longer do.  Premiere shows a "generic error" when trying to relink the files in an existing project, and an "unsupported codec" errors when trying to report them manually.  The previous version of Premiere Pro CC (2019) on the same machine was able to handle these files without problem.

 

Here's an example file info dump from MediaInfo:

 

General
Complete name : D:\Projects\RPXD0031.mp4
Format : MPEG-4
Format profile : JVT
Codec ID : avc1 (avc1/isom)
File size : 240 MiB
Duration : 1 min 49 s
Overall bit rate mode : Variable
Overall bit rate : 18.4 Mb/s
Encoded date : UTC 2018-08-02 02:17:23
Tagged date : UTC 2018-08-02 02:17:23
AMBA : 

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L4.2
Format settings : CABAC / 1 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference frames : 1 frame
Format settings, GOP : M=1, N=8
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 1 min 49 s
Bit rate mode : Variable
Bit rate : 17.9 Mb/s
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 100.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.194
Stream size : 235 MiB (98%)
Title : Ambarella AVC
Language : English
Encoded date : UTC 2018-08-02 02:17:23
Tagged date : UTC 2018-08-02 02:17:23
Codec configuration box : avcC

Audio
ID : 2
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : mp4a-40-2
Duration : 1 min 49 s
Bit rate mode : Constant
Bit rate : 128 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 1.67 MiB (1%)
Title : Ambarella AAC
Language : English
Encoded date : UTC 2018-08-02 02:17:23
Tagged date : UTC 2018-08-02 02:17:23

 

Clearly something that was installed on the machine prior to the Windows reinstallation was providing playback support for these files to Premiere.  But I'm stumped as to what it might be. 

 

Any suggestions would be greatly appreciated. 

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Adobe Community Professional ,
Mar 31, 2020

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Ambarella?

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New Here ,
Mar 31, 2020

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@Ann Bens.  Thanks, but a one word reply isn't particularly helpful. I have no idea what "Ambarella" is.  Googling it returns a specialist AI company (so are you just spamming rather than helping?).  Either way, whatever products Ambarella offer were certainly not installed on my machine prior to the Windows reinstall. So it is rather unlikely to be the cause of, or solution to, the problem.

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Adobe Community Professional ,
Mar 31, 2020

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so are you just spamming rather than helping?

Really?

 

 

Nor have I but that is what the mediainfo shows....

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New Here ,
Sep 20, 2020

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I am having the same issue. Adobe... where are you?

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New Here ,
Sep 21, 2020

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I seem to have resolved it, but I'm not sure what actually did it.  I installed the following codec packs:

 

- XVID

- DVIX

- Combined Community Codec Pack

- Quicktime 7 (although no longer supported)

 

Something in this lot seems to have done the trick.

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Adobe Community Professional ,
Sep 21, 2020

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I installed the following codec packs

 

Very bad idea. Dont install codec packs it can mess up your system.

xvid and dvix are not supported by Premiere.

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New Here ,
Sep 22, 2020

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Hmm... well something in that group fixed the problem, and the system is fine. 

 

It would be better for Premiere to actually be able to figure this out for itself, rather than having to rely on third-party software.   It's particularly telling that ALL the other video playback software on the system could play the MP4 files in question after the reinstall, except Premiere.  So clearly something in those codec packs allowed Premiere to start playing the files.

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Ann Bens LATEST
Adobe Community Professional ,
Sep 22, 2020

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You have to remember Premiere is not playback software but rather a NLE.

You need to fix this without a codec pack as Premiere might use the wrong codec on export.

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