Black always at same frame? Corrupt files?

[Filip Olin]

Hi,
I'm having serious issues transcoding a bunch of footage.
A lot (about 40%) of the clips from one shooting day renders black frames (or green from FCP). The location where the black frames start are always the same.
I have tried transcoding on several machines, both pc and mac, using latest redcine-x. I have also tried dropping a proxy in FCP7 and then exporting it to a Prores-file which causes the clip to go green at a certain point. Once it has "gone green" all proxies I drop in the timeline will be green all through until I restart FCP and clear cache.
I have tried exporting from Premiere CS5 using the original RAW-files (crashes the program), exporting directly from Quicktime (renders green frames), exporting through MPEG Streamclip (crashes the program)...

In FCP I also get an error message (some times) stating there was an error with the RED Quicktime plugin. I am using the latest version from the RED-site.

In the Redcine-x log file it get the error-message "Unable to decode video frame. Reason: 6" followed by the ClipId in several places in the problematic clips.

The problem is when they transferred the material at the shoot they only did one transfer to one harddrive (Ouch, I know but nothing to be done now) which they then made copies of so I have no way of checking alternative copies of the footage.

I'm guessing that the original files are corrupt but am hoping someone can prove me wrong...

I am using Redcine-X V261

Thanks in advance for helping me out and please let me know if you need more info.

[Micheal J]

For reference I'm encountering this error as well with build 326 - but the footage is known to have had severe issues on set. I was told something about corruption and trying to see what I can recover.

[Matthew Yaeger]

Hi,
I'm having serious issues transcoding a bunch of footage.
A lot (about 40%) of the clips from one shooting day renders black frames (or green from FCP). The location where the black frames start are always the same.
I have tried transcoding on several machines, both pc and mac, using latest redcine-x. I have also tried dropping a proxy in FCP7 and then exporting it to a Prores-file which causes the clip to go green at a certain point. Once it has "gone green" all proxies I drop in the timeline will be green all through until I restart FCP and clear cache.
I have tried exporting from Premiere CS5 using the original RAW-files (crashes the program), exporting directly from Quicktime (renders green frames), exporting through MPEG Streamclip (crashes the program)...

In FCP I also get an error message (some times) stating there was an error with the RED Quicktime plugin. I am using the latest version from the RED-site.

In the Redcine-x log file it get the error-message "Unable to decode video frame. Reason: 6" followed by the ClipId in several places in the problematic clips.

The problem is when they transferred the material at the shoot they only did one transfer to one harddrive (Ouch, I know but nothing to be done now) which they then made copies of so I have no way of checking alternative copies of the footage.

I'm guessing that the original files are corrupt but am hoping someone can prove me wrong...

I am using Redcine-X V261

Thanks in advance for helping me out and please let me know if you need more info.

Reason 6 is the unable to decode due to corrupt frame. I recommend setting your in point to the frame after the first one that is showing this message via the "Clip In" column in the bin and then exporting the clip from that point on.