7/32 MLVs empty

[Toffifee]

Hi,

I apologise if there is already a post for this, however I did not see one.

I seem to have several .MLVs not being able to process at all. Out of 32 files processed I had 7 folders with no .DNGs only 1 .WAV file. The .WAV files are always exactly 44 bytes large. I tried different programs to process with and it's a problem I've had on two different nightly builds of which March 12 5D3113 on a 5D Mark III.

Has anybody encountered similar problems and if so, how can I fix it?


Best regards,

[g3gg0]

can you check those faulty .mlv files for their size?
also an output of "mlv_dump -v <file.mlv>" would help

[Toffifee]

1.29 Gb
232 Mb
915 Mb


I'm working on the mlv_dump, but I keep deleting the script to do it, so I'm just trying to find the terminal code to use the program.

[Toffifee]

This is what MLV_Dump says when I go mlv_dump <filename> in terminal:


MLV Dumper v1.0
-----------------

Mode of operation:
   - Input MLV file: 'm23-0532.mlv'
   - Verify file structure
File m23-0532.mlv opened
Processing...
Reached end of chunk 1/1 after 726 blocks
Processed 250 video frames
Done



edit: Then nothing happens, no files are extracted.

[g3gg0]

i asked for the output of "mlv_dump -v <file>" 

if you want to have frames dumped, use "mlv_dump --dng <file>"

[Toffifee]

Oops!
Didn't see that part 

The report exceeds the maximum allowed length of characters this forum allows (20k).

Here's the dropbox link to download the report.

https://dl.dropboxusercontent.com/u/21538108/mlv_dump%20-v.rtf

[AndreaFox]

Try to use MLV Mystic, for me it works very well

http://secondsparkproductions.com/index.php/blog/8-mlv-mystic-mlv-raw-to-dng-batch-converter

[Toffifee]

I have it installed, honestly it's probably the program that work the least for me.
At the moment I'm most using a windows program through parallells:

http://www.magiclantern.fm/forum/index.php?topic=10198.0

[Toffifee]

Did you see anything irregular g3gg0??

[g3gg0]

didnt notice you wrote.

a) cannot open the .rtf. can you post that on pastebin.com?
b) did you try the --dng parameter i wrote?

[Toffifee]

a)
http://pastebin.com/fxvYdDfT


b) Here's the result I get from --dng:


mlv_dump --dng M23-0532.MLV

MLV Dumper v1.0
-----------------

Mode of operation:
   - Input MLV file: 'M23-0532.MLV'
   - Convert to DNG frames
   - Output into 'M23-0532_frame_'
File M23-0532.MLV opened
Processing...
[ERROR] File ends in the middle of a block
Processed 0 video frames
Done


and it creates a 44 byte .wav file.

[Toffifee]

Also, I've noticed that the aperture values always reads as f/0.00.
That's a bug right?

[g3gg0]

interesting....
can you do a mlv_dump -v --dng M23-0532.MLV please?

[g3gg0]

Also, I've noticed that the aperture values always reads as f/0.00.
That's a bug right?

should not happen. does it change when you select M mode?

[Toffifee]

I always shoot in M mode.

Here's the mlv_dump -v --dng M23-0532.MLV

Code Select Expand

MLV Dumper v1.0
-----------------

Mode of operation:
   - Input MLV file: 'M23-0532.MLV'
   - Verbose messages
   - Convert to DNG frames
   - Output into 'M23-0532_frame_'
File M23-0532.MLV opened
Processing...
File Header (MLVI)
    Size        : 0x00000034
    Ver         : v2.0
    GUID        : 4449552110025059234
    FPS         : 23.976000
    File        : 0 / 1
    Frames Video: 252
    Frames Audio: 54
Block: RAWI
  Offset: 0x00000034
    Size: 180
    Time: 234.528000 ms
    Res:  1920x1080
    raw_info:
      api_version      0x00000001
      height           1318
      width            2080
      pitch            3640
      frame_size       0x00493450
      bits_per_pixel   14
      black_level      2045
      white_level      15000
      active_area.y1   28
      active_area.x1   146
      active_area.y2   1318
      active_area.x2   2078
      exposure_bias    0, 0
      cfa_pattern      0x02010100
      calibration_ill  1
Block: INFO
  Offset: 0x000000e8
    Size: 16
    Time: 238.052000 ms
Block: RTCI
  Offset: 0x000000f8
    Size: 44
    Time: 0.001000 ms
     Date:        23.03.2014
     Time:        05:32:31 (GMT+0)
     Zone:        ''
     Day of week: 0
     Day of year: 81
     Daylight s.: 0
Block: EXPO
  Offset: 0x00000124
    Size: 40
    Time: 0.002000 ms
     ISO Mode:   0
     ISO:        100
     ISO Analog: 72
     ISO DGain:  0/1024 EV
     Shutter:    19983 µs (1/50.04)
Block: LENS
  Offset: 0x0000014c
    Size: 96
    Time: 0.003000 ms
     Name:        'EF24-105mm f/4L IS USM'
     Serial:      ''
     Focal Len:   24 mm
     Focus Dist:  386 mm
     Aperture:    f/0.00
     IS Mode:     14
     AF Mode:     0
     Lens ID:     0x000000ED
     Flags:       0x00000000
Block: IDNT
  Offset: 0x000001ac
    Size: 84
    Time: 0.004000 ms
     Camera Name:   'Canon EOS 5D Mark III'
     Camera Serial: '55C289CD8'
     Camera Model:  0x80000285
Block: WBAL
  Offset: 0x00000200
    Size: 44
    Time: 0.005000 ms
     Mode:   0
     Kelvin:   2500
     Gain R:   491
     Gain G:   1024
     Gain B:   638
     Shift GM:   0
     Shift BA:   0
Block: STYL
  Offset: 0x0000022c
    Size: 52
    Time: 0.006000 ms
     picStyle:   34
     contrast:   0
     sharpness:  5
     saturation: 0
     colortone:  0
Block: NULL
  Offset: 0x00000260
    Size: 36
Block: WAVI
  Offset: 0x00000284
    Size: 32
    Time: 280.990000 ms
    wav_info:
      format           1
      channels         2
      samplingRate     48000
      bytesPerSecond   192000
      blockAlign       4
      bitsPerSample    16
Block: EXPO
  Offset: 0x000002a4
    Size: 40
    Time: 307.326000 ms
     ISO Mode:   0
     ISO:        100
     ISO Analog: 72
     ISO DGain:  0/1024 EV
     Shutter:    19983 µs (1/50.04)
Block: LENS
  Offset: 0x000002cc
    Size: 96
    Time: 307.361000 ms
     Name:        'EF24-105mm f/4L IS USM'
     Serial:      ''
     Focal Len:   24 mm
     Focus Dist:  386 mm
     Aperture:    f/0.00
     IS Mode:     14
     AF Mode:     0
     Lens ID:     0x000000ED
     Flags:       0x00000000
Block: STYL
  Offset: 0x0000032c
    Size: 52
    Time: 307.551000 ms
     picStyle:   34
     contrast:   0
     sharpness:  5
     saturation: 0
     colortone:  0
Block: MARK
  Offset: 0x00000360
    Size: 20
    Time: 344.731000 ms
  Button: 0x00
Block: VIDF
  Offset: 0x00000374
    Size: 3632620
    Time: 0.000000 ms
   Frame: #0
    Crop: 18774x17988
     Pan: 28160x55
   Space: -20
[ERROR] File ends in the middle of a block
Processed 0 video frames
Done

[g3gg0]

yeah your file obviously is corrupted.
can you try to upload the first few megabytes of that file?

[Toffifee]

Well that sucks. Am I really the only one who has this problem?

How do I upload only a portion of a file?

The file is 915mb in total and I'd upload the first .dngs except as I said the mlv_dump or any other mlv program doesn't output any .dngs.
So do you want me to upload the whole thing?

Also, would it help to get the -v --dng report for more of the corrupted .MLVs?

[g3gg0]

well i could manually fix that problem if i can somehow can access it on your computer using an hex editor like HxD. ( http://mh-nexus.de/en/hxd/ )
maybe we could do this via remote desktop or whatever.

it seems you have used a very old version of mlv_rec.
there was one with a bug that could cause that kind of errors.

[Toffifee]

Do you have Screens?

[g3gg0]

eeeh screens?

[Toffifee]

http://edovia.com/screens/
Forgot that you're windows based.

You are looking to control my mac remotely, correct?
I use OS X, so it would have to be a client that is cross platform. TeamViewer?

[g3gg0]

yes, but if you are on a mac, you can try to dump the first few megabytes using 'dd'.

dd if=file.mlv of=partial.mlv bs=1024 count=8192
and you will get a 8 MiB file you can send me

[Toffifee]

"dd if=M23-0532.mlv of=partial.mlv bs=1024 count=8192
8192+0 records in
8192+0 records out
8388608 bytes transferred in 0.028051 secs (299049519 bytes/sec)"


Here's the file that I got, put it on dropbox:
https://dl.dropboxusercontent.com/u/21538108/partial.mlv

[Toffifee]

Here's the whole file if it'd be interesting.

https://copy.com/igxTv3OTObV2

[g3gg0]

did you try the latest mlv_dump?

http://ml.g3gg0.de/modules/mlv_dump.zip/mlv_dump.zip