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ponchio / untrunc

Restore a damaged (truncated) mp4, m4v, mov, 3gp video. Provided you have a similar not broken video.
GNU General Public License v2.0
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Panasonic Lumix H.264 video Recover #228

Open luiscortex opened 3 years ago

luiscortex commented 3 years ago

Hello, how are you? In advance, Tks for your service!

Im trying to recover a Panasonic Lumix H.264 video . Configuration in cammera is 1920x1080, 29,97p | 420 / 8bit / LongGOP, 100mbps My Camera was abrupted power disconnected and made a 22 GB file .mdt with , 42 minutes

I was able to recover 21min of the video, but after the 22min the picture freeze and make a hiss sound.

You can see print here of command used https://ibb.co/FgKB83J

the name of file recovered by Untrunc was P1013244.mdt_fixed-s1-dyn.MOV

My question is: Can I be abble to recover complete file with another parameter?

I really apreciate your help! Tks

ponchio commented 3 years ago

Hi Luis,

you are using a fork (definitely better mantained than untrunc) which

somewhat diverged (different dynamic strategy). You could try the original untrunc (https://github.com/ponchio/untrunc) and see if you get a different result. (be sure to use the -w option for verbose output (and acclude it as a text file!)

The main problem of your video is the twos codec, which is basically raw audio, making it difficult to guess length and start of the packets. (what happens is a that the beginning of a video is not recognized (or some other unrecognized data) and the code defaults to tows (hence the hiss sound). With some hexedit magic we could guess what's happening and restart the recovery process.

I have a very limited connectivity so I can't have a look at the files until September...

Ciao,

Federico

On Mon, Jul 19, 2021 at 12:36 AM luiscortex @.***> wrote:

Hello, how are you? In advance, Tks for your service!

Im trying to recover a Panasonic Lumix H.264 video . Configuration in cammera is 1920x1080, 29,97p | 420 / 8bit / LongGOP, 100mbps My Camera was abrupted power disconnected and made a 22 GB file .mdt with , 42 minutes

I was able to recover 21min of the video, but after the 22min the picture freeze and make a hiss sound.

You can see print here of command used https://ibb.co/FgKB83J

the name of file recovered by Untrunc was P1013244.mdt_fixed-s1-dyn.MOV

My question is: Can I be abble to recover complete file with another parameter?

I really apreciate your help! Tks

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luiscortex commented 3 years ago

Tks, I will try this weekend and come back here to let you know the results!

richardpl commented 1 year ago

I have better tool that 100% recovers files, contact me for code.