input Matrox avi problem

GoogleCodeExporter commented 9 years ago

Is not possible convert completely a video file format MATROX, because the 
output file duration is smaller than the input file.

I noticed that in the input description the duration of the video is not the 
real one

In the test below I have converted video and audio with the same duration.

Command line:

ffmbc -i Matrox_Mpeg2_iframe_15Mbs.avi -i pcm_s16le_1536kbs.wav -target imx50 
IMX50_From_Matrox.mxf

Output:

FFmbc version 0.6.1
Copyright (c) 2008-2011 Baptiste Coudurier and the FFmpeg developers
[avi @ 0x252dbf0] non-interleaved AVI
[mpeg2video @ 0x25305d0] mpeg_decode_postinit() failure
Input #0, avi, from 'Matrox_Mpeg2_iframe_15Mbs.avi':
  Metadata:
    encoder: Matrox MQSink Filter For MPEG. Format: 4. Build: 2.0.0.271 
  Duration: 00:18:22.84, start: 0.000000, bitrate: 103317 kb/s
    Stream #0.0(und): Video: mpeg2video, yuv422p, 720x576i tff [PAR 16:15 DAR 4:3], 14999 kb/s, 25.00 fps
Input #1, wav, from 'pcm_s16le_1536kbs.wav':
  Duration: 02:06:05.64, start: 0.000000, bitrate: 1536 kb/s
    Stream #1.0(und): Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
auto-rescaling to IMX resolution
[pad @ 0x2534d90] w:720 h:576 -> w:720 h:608 x:0 y:32 color:0x108080FF[yuva]
Warning, QMAT_SHIFT is larger than 21, overflows possible
    Last message repeated 1 times
Output #0, mxf_d10, to 'IMX50_From_Matrox.mxf':
  Metadata:
    encoder: FFmbc 0.6.1
    Stream #0.0(und): Video: mpeg2video, yuv422p, 720x608i tff [PAR 152:135 DAR 4:3], cbr, 50000 kb/s, 25.00 fps
    Stream #0.1(und): Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
Stream mapping:
  Stream #0.0 -> #0.0
  Stream #1.0 -> #0.1
Press [q] to stop encoding
[mpeg2video @ 0x25305d0] mpeg_decode_postinit() failure
frame= 1413 fps=126 q=1.0 Lsize=  431324kB time=00:00:56.44 bitrate=62595.8kbits

video:344971kB audio:10584kB global headers:0kB muxing overhead 21.310178%

I'm using Ubuntu 10.10 (64bit)
I was compiling with --enable-gpl (GCC 4.4.5)

Original issue reported on code.google.com by rebaglia...@gmail.com on 21 Oct 2011 at 8:58

GoogleCodeExporter commented 9 years ago

I used your newer version (0.7-rc3) ,but the errors are duplicated

Command line:

ffmbc -i Matrox_Mpeg2_iframe_15Mbs.avi -i pcm_s16le_1536kbs.wav -target imx50 
IMX50_From_Matrox.mxf

Output:

FFmbc version 0.7-rc3
Copyright (c) 2008-2011 Baptiste Coudurier and the FFmpeg developers
[avi @ 0x287e600] non-interleaved AVI
[mpeg2video @ 0x2880680] mpeg_decode_postinit() failure
Input #0, avi, from 'Matrox_Mpeg2_iframe_15Mbs.avi':
  Metadata:
    encoder: Matrox MQSink Filter For MPEG. Format: 4. Build: 2.0.0.271 
  Duration: 00:18:22.84, start: 0.000000, bitrate: 103317 kb/s
    Stream #0.0(und): Video: mpeg2video (4:2:2), yuv422p, 720x576i tff [PAR 16:15 DAR 4:3], 14999 kb/s, 25.00 fps
Input #1, wav, from 'pcm_s16le_1536kbs.wav':
  Duration: 02:06:05.64, start: 0.000000, bitrate: 1536 kb/s
    Stream #1.0(und): Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
File 'IMX50_From_Matrox.mxf' already exists. Overwrite ? [y/N] y
auto-rescaling to IMX resolution
[pad @ 0x2886720] w:720 h:576 -> w:720 h:608 x:0 y:32 color:0x108080FF[yuva]
Warning, QMAT_SHIFT is larger than 21, overflows possible
    Last message repeated 1 times
Output #0, mxf_d10, to 'IMX50_From_Matrox.mxf':
  Metadata:
    encoder: FFmbc 0.7
    Stream #0.0(und): Video: mpeg2video, yuv422p, 720x608i tff [PAR 152:135 DAR 4:3], cbr, 50000 kb/s, 25.00 fps
    Stream #0.1(und): Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
Stream mapping:
  Stream #0.0 -> #0.0
  Stream #1.0 -> #0.1
Press [q] to stop, [?] for help
[mpeg2video @ 0x2880680] mpeg_decode_postinit() failure
[mpeg2video @ 0x2880680] ac-tex damaged at 44 35
[mpeg2video @ 0x2880680] Warning MVs not available
[mpeg2video @ 0x2880680] concealing 45 DC, 45 AC, 45 MV errors
[mpeg2video @ 0x2880680] ac-tex damaged at 44 35
[mpeg2video @ 0x2880680] concealing 45 DC, 45 AC, 45 MV errors
frame=   63 fps=  0 q=1.0 size=   18946kB time=00:00:02.49 
bitrate=62181.8kbits/s eta=00:03:43.11    
[mpeg2video @ 0x2880680] ac-tex damaged at 44 35
[mpeg2video @ 0x2880680] Warning MVs not available
[mpeg2video @ 0x2880680] concealing 45 DC, 45 AC, 45 MV errors
[mpeg2video @ 0x2880680] ac-tex damaged at 44 35
[mpeg2video @ 0x2880680] concealing 45 DC, 45 AC, 45 MV errors
frame=  127 fps=126 q=1.0 size=   38498kB time=00:00:05.05 
bitrate=62376.5kbits/s eta=00:03:38.59    
[mpeg2video @ 0x2880680] ac-tex damaged at 44 35
[mpeg2video @ 0x2880680] concealing 45 DC, 45 AC, 45 MV errors
[mpeg2video @ 0x2880680] ac-tex damaged at 44 35
[mpeg2video @ 0x2880680] concealing 45 DC, 45 AC, 45 MV errors
[mpeg2video @ 0x2880680] ac-tex damaged at 44 35
[mpeg2video @ 0x2880680] concealing 45 DC, 45 AC, 45 MV errors
frame=  191 fps=126 q=1.0 size=   58050kB time=00:00:07.61 
bitrate=62440.4kbits/s eta=00:03:37.21    
[mpeg2video @ 0x2880680] ac-tex damaged at 44 35
[mpeg2video @ 0x2880680] concealing 45 DC, 45 AC, 45 MV errors
[mpeg2video @ 0x2880680] ac-tex damaged at 44 35
[mpeg2video @ 0x2880680] concealing 45 DC, 45 AC, 45 MV errors
[mpeg2video @ 0x2880680] ac-tex damaged at 44 35
[mpeg2video @ 0x2880680] concealing 45 DC, 45 AC, 45 MV errors
frame=  264 fps=125 q=1.0 Lsize=   80317kB time=00:00:10.49 
bitrate=62686.1kbits/s    00:03:39.21    
video:64453kB audio:1968kB global headers:0kB muxing overhead 20.920184%

Original comment by rebaglia...@gmail.com on 21 Oct 2011 at 10:51

GoogleCodeExporter commented 9 years ago

This file seems damaged. In any case I need the file to confirm the issue

Original comment by baptiste...@gmail.com on 23 Oct 2011 at 9:07

Changed state: CannotFix

GoogleCodeExporter commented 9 years ago

I looked for another file Matrox because the first one was too big.

How can I get you the file with size 300Mb, it is the smallest file that I have.

Command line:

ffmbc -i Matrox_Mpeg2_iframe_15Mbs.avi -i pcm_s16le_1536kbs.wav -target imx50 
IMX50_From_Matrox.mxf

Output:

FFmbc version 0.7-rc4
Copyright (c) 2008-2011 Baptiste Coudurier and the FFmpeg developers
[avi @ 0x208e600] non-interleaved AVI
[mpeg2video @ 0x2090680] mpeg_decode_postinit() failure
Input #0, avi, from 'Matrox_Mpeg2_iframe_15Mbs.avi':
  Metadata:
    encoder: Matrox MQSink Filter For MPEG. Format: 4. Build: 2.0.0.271 
  Duration: 00:02:32.24, start: 0.000000, bitrate: 15069 kb/s
    Stream #0.0(und): Video: mpeg2video (4:2:2), yuv422p, 720x576i tff [PAR 16:15 DAR 4:3], 14999 kb/s, 25.00 fps
Input #1, wav, from 'pcm_s16le_1536kbs.wav':
  Duration: 00:02:32.24, start: 0.000000, bitrate: 1536 kb/s
    Stream #1.0(und): Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
File 'IMX50_From_Matrox.mxf' already exists. Overwrite ? [y/N] y
Auto-rescaling to imx50 resolution
[pad @ 0x2096720] w:720 h:576 -> w:720 h:608 x:0 y:32 color:0x108080FF[yuva]
Warning, QMAT_SHIFT is larger than 21, overflows possible
    Last message repeated 1 times
Output #0, mxf_d10, to 'IMX50_From_Matrox.mxf':
  Metadata:
    encoder: FFmbc 0.7
    Stream #0.0(und): Video: mpeg2video, yuv422p, 720x608i tff [PAR 152:135 DAR 4:3], cbr, 50000 kb/s, 25.00 fps
    Stream #0.1(und): Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
Stream mapping:
  Stream #0.0 -> #0.0
  Stream #1.0 -> #0.1
Press [q] to stop, [?] for help
[mpeg2video @ 0x2090680] mpeg_decode_postinit() failure
[mpeg2video @ 0x2090680] ac-tex damaged at 44 35
[mpeg2video @ 0x2090680] Warning MVs not available
[mpeg2video @ 0x2090680] concealing 45 DC, 45 AC, 45 MV errors
[mpeg2video @ 0x2090680] ac-tex damaged at 44 35
[mpeg2video @ 0x2090680] Warning MVs not available
[mpeg2video @ 0x2090680] concealing 45 DC, 45 AC, 45 MV errors
[mpeg2video @ 0x2090680] ac-tex damaged at 44 35
[mpeg2video @ 0x2090680] concealing 45 DC, 45 AC, 45 MV errors
[mpeg2video @ 0x2090680] ac-tex damaged at 44 35
[mpeg2video @ 0x2090680] concealing 45 DC, 45 AC, 45 MV errors
[mpeg2video @ 0x2090680] ac-tex damaged at 44 35
[mpeg2video @ 0x2090680] concealing 45 DC, 45 AC, 45 MV errors
[mpeg2video @ 0x2090680] ac-tex damaged at 44 35
[mpeg2video @ 0x2090680] concealing 45 DC, 45 AC, 45 MV errors
frame=   59 fps=  0 q=1.0 size=   17724kB time=00:00:02.32 
bitrate=62440.6kbits/s eta=00:00:32.83    
[mpeg2video @ 0x2090680] ac-tex damaged at 44 35
[mpeg2video @ 0x2090680] concealing 45 DC, 45 AC, 45 MV errors
[mpeg2video @ 0x2090680] ac-tex damaged at 44 35
[mpeg2video @ 0x2090680] concealing 45 DC, 45 AC, 45 MV errors
[mpeg2video @ 0x2090680] ac-tex damaged at 44 35
[mpeg2video @ 0x2090680] concealing 45 DC, 45 AC, 45 MV errors
[mpeg2video @ 0x2090680] ac-tex damaged at 44 35
[mpeg2video @ 0x2090680] concealing 45 DC, 45 AC, 45 MV errors
frame=  121 fps=120 q=1.0 size=   36360kB time=00:00:04.80 
bitrate=62053.6kbits/s eta=00:00:31.06    
[mpeg2video @ 0x2090680] ac-tex damaged at 44 35
[mpeg2video @ 0x2090680] concealing 45 DC, 45 AC, 45 MV errors
[mpeg2video @ 0x2090680] ac-tex damaged at 44 35
[mpeg2video @ 0x2090680] concealing 45 DC, 45 AC, 45 MV errors
[mpeg2video @ 0x2090680] ac-tex damaged at 44 35
[mpeg2video @ 0x2090680] concealing 45 DC, 45 AC, 45 MV errors
[mpeg2video @ 0x2090680] ac-tex damaged at 44 35
[mpeg2video @ 0x2090680] concealing 45 DC, 45 AC, 45 MV errors
frame=  184 fps=121 q=1.0 size=   55912kB time=00:00:07.33 
bitrate=62412.9kbits/s eta=00:00:30.00    
[mpeg2video @ 0x2090680] ac-tex damaged at 44 35
[mpeg2video @ 0x2090680] concealing 45 DC, 45 AC, 45 MV errors
[mpeg2video @ 0x2090680] ac-tex damaged at 44 35
[mpeg2video @ 0x2090680] concealing 45 DC, 45 AC, 45 MV errors
[mpeg2video @ 0x2090680] ac-tex damaged at 44 35
[mpeg2video @ 0x2090680] concealing 45 DC, 45 AC, 45 MV errors
[mpeg2video @ 0x2090680] ac-tex damaged at 44 35
[mpeg2video @ 0x2090680] concealing 45 DC, 45 AC, 45 MV errors
[mpeg2video @ 0x2090680] ac-tex damaged at 44 35
[mpeg2video @ 0x2090680] concealing 45 DC, 45 AC, 45 MV errors
frame=  262 fps=121 q=1.0 Lsize=   79698kB time=00:00:10.41 
bitrate=62712.8kbits/s    00:00:29.66    
video:63965kB audio:1952kB global headers:0kB muxing overhead 20.906194%

Original comment by rebaglia...@gmail.com on 27 Oct 2011 at 1:38

GoogleCodeExporter commented 9 years ago

I noticed that HD Matrox intraframe wrapped in AVI are not recognized at all:

Stream #0.0(und): Video: unknown (M705), 1920x1080p, 25fps

Regards

Original comment by plkmaru...@gmail.com on 27 Oct 2011 at 2:06

GoogleCodeExporter commented 9 years ago

Sorry, I need the file anyway to be able to look at it.

Original comment by baptiste...@gmail.com on 27 Oct 2011 at 3:44

GoogleCodeExporter commented 9 years ago

How can I get you the file with size 300Mb?

The Max. attachments per comment  is 10.0 MB

Original comment by rebaglia...@gmail.com on 27 Oct 2011 at 4:05

GoogleCodeExporter commented 9 years ago

Upload the file to medafire or something like that, and mail me the link.

Original comment by baptiste...@gmail.com on 27 Oct 2011 at 4:09

GoogleCodeExporter commented 9 years ago

I noticed that the version 6.1 doesn't create image artefacts.

Original comment by rebaglia...@gmail.com on 29 Oct 2011 at 6:58

GoogleCodeExporter commented 9 years ago

I'll have a look, thanks for the sample

Original comment by baptiste...@gmail.com on 29 Oct 2011 at 9:10

Changed state: Accepted

GoogleCodeExporter commented 9 years ago

Btw, can you share a small sample with M705 fourcc ? So I can add support.

Original comment by baptiste...@gmail.com on 29 Oct 2011 at 9:10

GoogleCodeExporter commented 9 years ago

Here you go: http://min.us/mbgSk2nfPY, a very small Matrox M705 file. 
1920x1080, 50i

Original comment by plkmaru...@gmail.com on 30 Oct 2011 at 6:33

GoogleCodeExporter commented 9 years ago

SD files should be supported now. HD is different I need to investigate more.

Original comment by baptiste...@gmail.com on 12 Jan 2012 at 5:54

GoogleCodeExporter commented 9 years ago

Hi Baptiste, Thanks! now it's fine.

But if I use a much longer file, ffmbc doesn't read the correct duration and it 
doesn't encode the entire file.
Below you can see the output of the test.

Command Line:

ffmbc -v 3 -i Test.avi -i Test.wav -target imx50 -tff -aspect 4:3 -acodec 
pcm_s16le Test.mxf -map_audio_channel 1:0:0:0:1:0 -map_audio_channel 
1:0:1:0:1:1 -map_audio_channel 1:0:0:0:1:2 -map_audio_channel 1:0:1:0:1:3

Output:

FFmbc version 0.7-rc5
Copyright (c) 2008-2011 Baptiste Coudurier and the FFmpeg developers
[avi @ 0x1d94600] non-interleaved AVI
[mpeg2video @ 0x1d96620] mpeg_decode_postinit() failure
Input #0, avi, from 'Test.avi':
  Metadata:
    encoder: Matrox MQSink Filter For MPEG. Format: 4. Build: 2.0.0.271 
  Duration: 00:18:22.84, start: 0.000000, bitrate: 103317 kb/s
    Stream #0.0(und): Video: mpeg2video (4:2:2), yuv422p, 720x576i tff [PAR 16:15 DAR 4:3], 14999 kb/s, 25.00 fps
Input #1, wav, from 'Test.wav':
  Duration: 02:06:05.64, start: 0.000000, bitrate: 1536 kb/s
    Stream #1.0(und): Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
Auto-rescaling to imx50 resolution
[pad @ 0x1d96060] w:720 h:576 -> w:720 h:608 x:0 y:32 color:0x108080FF[yuva]
Warning, QMAT_SHIFT is larger than 21, overflows possible
    Last message repeated 1 times
Output #0, mxf_d10, to 'Test.mxf':
  Metadata:
    encoder: FFmbc 0.7
    Stream #0.0(und): Video: mpeg2video, yuv422p, 720x608i tff [PAR 152:135 DAR 4:3], cbr, 50000 kb/s, 25.00 fps
    Stream #0.1(und): Audio: pcm_s16le, 48000 Hz, 4 channels, s16, 3072 kb/s
Stream mapping:
  Stream #0.0 -> #0.0
  Stream #1.0 -> #0.1 [channel: 0 -> 0]
  Stream #1.0 -> #0.1 [channel: 1 -> 1]
  Stream #1.0 -> #0.1 [channel: 0 -> 2]
  Stream #1.0 -> #0.1 [channel: 1 -> 3]
Press [q] to stop, [?] for help
[mpeg2video @ 0x1d96620] mpeg_decode_postinit() failure
frame=  288 fps=124 q=1.0 Lsize=   87681kB time=00:00:11.47 
bitrate=62582.4kbits/s    00:03:40.01    
video:70312kB audio:4304kB global headers:0kB muxing overhead 17.508255%

Original comment by rebaglia...@gmail.com on 21 Jan 2012 at 12:34

GoogleCodeExporter commented 9 years ago

Can you please upload the file somewhere ? Thanks

Original comment by baptiste...@gmail.com on 23 Jan 2012 at 7:55

GoogleCodeExporter commented 9 years ago

Hi,

I working for a french television channel, and we also use AVI Matrox for our 
old file.

I had to modify a codec to get the correct duration of the file.

The problem came with the structure of the AVI file. Matrox didn't respect the 
avi specification (odml if I remember correctly) for the file that was larger 
than 2Gb...

So they start like a normal avi file, but after the 9min 13s the video stop... 
That means that you arrive at the end of the normal "structure" of the avi 
file...

The bug is inside FFMPEG, on the avidec.c

I was able to correct : LAVFilter for windows to be able to read a full file 
and reencode it...

But when I try to do the same on FFMBC, my C skills wasn't enough....

If you wan't a file you will need a file bigger than 90000 frames (82000 
something like that) and will have the bug.

I think that my correction in LAVFilter isn't a good correction... My C skills 
or old but It work for me...  I wasn't able to do it in ffmbc if you want to 
look at it, I will put my avidec.c (of lavfilter) in attached file.

I add the method: avi_read_mmes
Which use the right index of the file.

Hope that help.

Original comment by ilf.mou...@gmail.com on 15 Jun 2012 at 9:44

Attachments:

avidec.c

GoogleCodeExporter commented 9 years ago

Thanks, I'll have a look, ping me if I forget.

Original comment by baptiste...@gmail.com on 15 Jun 2012 at 10:16

GoogleCodeExporter commented 9 years ago

Hi,

Were you able to look at it ?

Thanks again.

Original comment by ilf.mou...@gmail.com on 25 Jun 2012 at 2:31

GoogleCodeExporter commented 9 years ago

No, not yet, can you please send a diff ? It would be easier. Thanks,

Original comment by baptiste...@gmail.com on 25 Jun 2012 at 4:14

GoogleCodeExporter commented 9 years ago

Hi,
we have applied the patch supplied by ilf to the sources of FFmbc version 
0.7-rc8. Now we are able to read the index correctly (we hope!) but during the 
execution we get a Segmentation fault. We have a diff file if it can be use 
usefull.
Do you have news about this issue?

Thanks

Original comment by cook.fon...@gmail.com on 28 Jun 2013 at 7:29

GoogleCodeExporter commented 9 years ago

Nope, this require some work to apply the patch correctly

Original comment by baptiste...@gmail.com on 15 Jul 2013 at 10:11

GoogleCodeExporter commented 9 years ago

[deleted comment]

GoogleCodeExporter commented 9 years ago

[deleted comment]

GoogleCodeExporter commented 9 years ago

Hi all.

I work for a major swiss broadcasting company and we started a project to 
convert a huge bunch of Matrox MMES AVI files into MXF, so this issue is quite 
important for us.

The patch proposed by ilf (see comment #15), while setting the correct number 
of frames in the index (and by consequence, the correct duration of the video 
stream), seems not to solve the whole problem, as stated by cook (see comment 
#19).

After some days of analysing different AVI files (Matrox and not, big and 
small), studying the specs and trying, it seems to me that "big" MMES files are 
different from "standard big" files in the following ways:

1. the super index "index subtype" (index_sub_type) is 16 instead of 0;
2. same for the standard index
3. a standard index entry is 24 bytes long instead of 8, thus the 
longs_pre_entry value is 6 instead of 2;
   the fields "offset" and "length" are QWORD (64bit) instead of DWORD (32bit);
   the semantic of the additional field (or fields) is beyond my comprehension, but at first sight it
   doesn't seem to be necessary.

I therefore came up with the attached patch. Perhaps I'm too optimistic, but 
for now it seems to work. It shall be applied to libavformat/avidec.c of 
FFmbc-0.7-rc8. I tested it against some files, ranging from a couple of minutes 
(to assure that it's backward compatible) to almost 3 hours. Use it at your own 
risk and post here your findings.

Hopefully, in the near future I'll start the massive conversion; I'll let you 
know if the patch really works, so stay tuned...

Original comment by fris...@yahoo.com on 8 Nov 2013 at 1:30

Attachments:

avidec.patch

GoogleCodeExporter commented 9 years ago

Hi everyone...

I'm using ffmbc to generate a lot of transcoding for my work... 
But I don't use directly Matrox avi file with ffmbc... I'm bypassing the 
problem using LAVFilter (which I patched) to work with ffmbc using avisynth 
script.. It's working but only in 32Bit...
I'm using it for 2 years now without any problems...

Hope this will help.

Original comment by ilf.mou...@gmail.com on 14 Feb 2014 at 8:43

GoogleCodeExporter commented 9 years ago

(Please see comment #23; I had to create a Google account since it's no longer 
possible to use an external account)

Hello everybody.
As promised I'm back with some results 

I wrote a bulk AVI to MXF conversion program; for each conversion, the program 
tests the AVI file duration against the MXF one; so far, the program has 
converted about 10'000 files, ranging from less than a minute to a few hours.
The number of discrepancies found is... 0.
I didn't obviously looked at every file, just at some of them, and they look OK.

I therefore think that the patch I submitted last November actually solves the 
problem, but I would like to see these figures confirmed by other users.

@Ilf: I think this thread is to have FFmbc do the work; that said, is always 
great to have alternatives, so thanks for your comment.

Original comment by pa070pa...@gmail.com on 26 May 2014 at 4:16

GoogleCodeExporter commented 9 years ago

Nice, do you have other files I could validate the patch with ? Ill apply it
Thanks

Original comment by baptiste...@gmail.com on 26 May 2014 at 9:50

GoogleCodeExporter commented 9 years ago

Hi Baptiste.
I sent you via Google Drive some links with the requested files.
Note that the AVI files are video-only; that's why the audio is in separated 
files.

Files 399508* are a short clip, a little less than 2 minutes, used to test the 
backward compatibility.

The other ones, 401605*, is a longer clip, more than 24 minutes, used to test 
the patch: before applying it, ffprobe shows a duration of about 9:13, while 
the patched version should show the correct one. ffmbc and other programs 
should behave consequently.

Please keep these files for yourself, as the content might be copyrighted.

Please note that I submitted the patch in November, for the 0.7-rc8 version. I 
see that you released the 0.7 and the 0.7.1 versions; I've yet to apply the 
patch to the newest release but I saw that it should be almost the same as the 
November's one (just a matter of displacement in the source file).

Keep up the good work ;-)

Original comment by pa070pa...@gmail.com on 5 Jun 2014 at 11:31

KostovP / ffmbc

input Matrox avi problem #64