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inmodulo  
#1 Posted : Thursday, June 19, 2014 4:09:51 AM(UTC)
inmodulo

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Good Morning All,

I work at a school and used vMix HD Pro (latest version) to record a stream of our summer concert.
We use a black magic quad and am recording in avi at 1080p 25fps and I used this teqnuiqe last week and it worked.

Problem is vMix seems to have produced 79 gigs of rubbish and now we have lost everything from the show. I have thrown the file through every avi fixer I know: DivX Fix, Digital Video Repair, in desperation I have even tried ripping out the audio but to know avail. Then I tried throwing it into converters to no avail such as WinHD, format factory etc. It wont open in VLC which is really worrying me as that thing plays anything.

I was a bit cocky as we had used this program before many times without incident so didn't use the multicorder and our cameras (due to budget contraint) are re purposed security cameras with some decent glass put on them have no recordings.

Anyone know of any other programs which or methods I could use to try and recover any of this, it seems a bit strange that data was generated with nothing usable inside.

Thanks in Advance for any tips

Stuart Brown
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thecloudmediagroup  
#2 Posted : Thursday, June 19, 2014 4:16:33 AM(UTC)
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Have you tried dropping the video into something like Adobe Premiere, Adobe Media Encoder or Final Cut X? I have had files that would not play in VLC or other players but would open in Premiere.

Also, do you have any codec packs installed on your computer like K-Lite? Sometimes other video software can do weird things to how video files are played and decoded.
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inmodulo on 6/19/2014(UTC)
inmodulo  
#3 Posted : Thursday, June 19, 2014 4:29:03 AM(UTC)
inmodulo

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I do have k/lite installed but premiere pro doesn't seem to want to touch it. I could be just bad transcription as we recorded it onto a USB3 external HD. We have do this before but maybe this time it couldn't keep up.

Thanks for your suggestion though

Stuart
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inmodulo  
#4 Posted : Thursday, June 19, 2014 4:31:34 AM(UTC)
inmodulo

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Here is the log if that helps

6/16/2014 5:55:02 PM, Version: 12.0.0.120 x64
6/16/2014 5:55:02 PM, Size: 1920x1080
6/16/2014 5:55:02 PM, System: PAL 50i or 25p
6/16/2014 5:55:02 PM, Codec: Decklink MJPEG Compressor
6/16/2014 5:55:02 PM, Format: UYVY 16 1498831189
6/16/2014 5:55:02 PM, AudioDevice: vMix Audio
6/16/2014 5:55:02 PM, AudioFormat: 48000 Hz 16 Bit 2 Channels
6/16/2014 5:55:02 PM, AudioDelay: 0
6/16/2014 5:55:02 PM, RestartInterval: 0
6/16/2014 5:55:02 PM, BitRate: 8
6/16/2014 5:56:06 PM, StartRecording
6/16/2014 8:47:52 PM, StopRecording
6/16/2014 8:47:52 PM, Duration: 02:51:46
6/16/2014 8:47:52 PM, Frames: 257663
6/16/2014 8:47:52 PM, DroppedFrames: 0
6/16/2014 8:47:52 PM, DueToSourceFrameRate: 0
6/16/2014 8:47:52 PM, DueToHardDiskOrCPU: 0
6/16/2014 8:47:52 PM, DroppedSamples: 0
6/16/2014 8:47:52 PM, MissedSamples: 0
6/16/2014 8:47:52 PM, SyncedSamples: 0
6/16/2014 8:47:52 PM, AudioOffset: 40
6/16/2014 8:47:52 PM, AudioDelay: 0
6/16/2014 8:47:52 PM, AudioEngine
6/16/2014 8:47:52 PM, Running: True
6/16/2014 8:47:52 PM, SampleRate: 48000hz 16 Bit
6/16/2014 8:47:52 PM, MixingErrors: 0
6/16/2014 8:47:52 PM, Streams
6/16/2014 8:47:52 PM, Stream0
6/16/2014 8:47:52 PM, Samples: 0
6/16/2014 8:47:52 PM, Dropped: 0
6/16/2014 8:47:52 PM, Latency: 0
6/16/2014 8:47:52 PM, Stream1
6/16/2014 8:47:52 PM, Samples: 214890
6/16/2014 8:47:52 PM, Dropped: 2
6/16/2014 8:47:52 PM, Latency: 1
6/16/2014 8:47:52 PM, AudioInputs
6/16/2014 8:47:52 PM, Decklink Video Capture
6/16/2014 8:47:52 PM, Latency: 60/80
6/16/2014 8:47:52 PM, Dropped: 0
6/16/2014 8:47:52 PM, Resampled: 0 ms
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admin  
#5 Posted : Thursday, June 19, 2014 5:15:38 AM(UTC)
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Hi,

The log shows the recording completed successfully.
Can you play it back in windows media player or VLC?

If not, try opening it in VirtualDub which will provide some additional information:
http://www.virtualdub.org/

Regards,

Martin
vMix
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inmodulo  
#6 Posted : Thursday, June 19, 2014 6:08:15 AM(UTC)
inmodulo

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Thanks Admin,

Vdub just says "Cannot detect file tzpe of ".... .avi"

I am really stuck.

I have even put a fake header on a copy of it to see if that works with no luck

Stuart
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Rehan  
#7 Posted : Thursday, June 19, 2014 6:19:03 AM(UTC)
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I would try Handbrake and WinFF.
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admin  
#8 Posted : Thursday, June 19, 2014 6:29:55 AM(UTC)
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Hi Stuart,

Do you have the original recording file before running it through the repair programs?
They may have made thing worse, so going back to the original file if possible is best.

Regards,

Martin
vMix
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inmodulo on 6/19/2014(UTC)
ClementN  
#9 Posted : Thursday, June 19, 2014 6:30:30 AM(UTC)
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In the past we used mp4repair.org
We had files no where else could be opened or repaired.

They are expensive and I don't know if they do avi. But if it is really important you can contact them.

(there is a diagnostic tool online)

http://mp4repair.org/pwt6/preview.html
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inmodulo on 6/19/2014(UTC)
inmodulo  
#10 Posted : Thursday, June 19, 2014 7:15:06 AM(UTC)
inmodulo

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I have the original, and two clean copies which I run each tool on. I have run everything I can find. WinFF got a little into it but no luck handbrake the same. I will check out mp4repair.org too

Stuart
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inmodulo  
#11 Posted : Thursday, June 19, 2014 7:20:35 AM(UTC)
inmodulo

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ClementN wrote:

In the past we used mp4repair.org
We had files no where else could be opened or repaired.

They are expensive and I don't know if they do avi. But if it is really important you can contact them.

(there is a diagnostic tool online)

http://mp4repair.org/pwt6/preview.html



This is the first time I have seen any image come from this, I have just emailed off for a sample.

Stuart
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