Emulate MATROX-AVI

[elmuz]

We have several NLE workstation mounting Adobe Premiere and Matrox RTX2 videocard. Matrox engineers told us Matrox RTX2 needs a proper Matrox timeline and ad-hoc Matrox AVI content in order to use all the power the videocard can provide. Only by doing this you will be sure on the real time features.
Untill today we neeed to encode all video content (except from pictures) in Matrox AVI.
What I am trying to do is to emulate Matrox AVI format using FFmpeg, so that I can provide all the needed content to the editors.

Here's what mediainfo says about Matrox AVI:

Format : AVI
Format/Info : Audio Video Interleave
Format profile : OpenDML
File size : 2,34 GiB
Duration : 4min 11s
Overall bit rate : 80,2 Mbps
Writing application : Matrox DSX AVI file . Format: 6. Build: 1.0.0.423

Video
Format : M701
Codec ID : M701
Duration : 4min 11s
Bit rate : 78,5 Mbps
Width : 1 440 pixel
Height : 1 080 pixel
Display aspect ratio : 4:3
Frame rate : 25,000 fps
Bits/(Pixel*Frame) : 2.018
Stream size : 2,29 GiB (98%)

Audio
Format : PCM
Format settings, Endianness : Little
Format settings, Sign : Unsigned
Codec ID : 1
Codec ID/Hint : Microsoft
Duration : 4min 11s
Bit rate mode : Constant
Bit rate : 1 536 Kbps
Channel(s) : 2 canali
Sampling rate : 48,0 KHz
Resolution : 16 bits
Stream size : 46,0 Mb (2%)
Interleave, duration : 40 ms (1,00frame)

Is there any way to encode in a closest format (maybe using FFmpeg)?

Tnx!

[mgh]

as per
this
FFmpeg should work

[poisondeathray]

matrox codecs are available for free now. You can install vfw codecs, and use vdub for example. I think fourcc m701 is the mpeg2 I-frame variant

http://www.matrox.com/video/en/support/windows/vfw_software_codecs/downloads/softwares/version1.0/

[elmuz]

very useful, thank you!

[marcorocchini]

as per
this
FFmpeg should work

Hi mgh,
I have download ffmpeg-1.1.5.tar.bz2
there is a folder libavformat and a riff.c file
but I don't know how to add the 111014-001.bin onto the riff.c file
this will transform FFMPEG in a matrox m701 encoder?

can I use ffmpeg -i input.avi -vcodec ...?!?matrox mpeg2Iframe ecc.. output.avi

where output.avi is a Matrox Mpeg2-Iframe coded?

Thank u

[Cornucopia]

BTW, your MediaInfo output shows MI not interpreting the file correctly, unless I am very much mistaken. It is quite common for HD camera files to be 1440x1080, with a PAR of 4:3 (NOT the usual 1:1 of many HD files), which means the DAR should be 16:9, as would be expected for HD material. I'm guessing that MI isn't parsing the Matrox videostream correctly (or incompletely).

This would greatly affect your intermediate output (and interoperability with other Matrox users) if you continued with that false assumption...

Scot

[El Heggunte]

Scott, take a look at the date of the first post

[Selur]

btw. the M701 patch made it into ffmpeg a while ago and can be used (see: http://www.ojdo.de/wp/2012/07/mpeg-422-for-import-in-lightworks-free/) without the need to patch the ffmpeg sources and compile a custom made ffmpeg version,..

[elmuz]

Exactly.. very old post!
Now everything is Full HD and with CS >= 5.5 no more need of Matrox encoded contents.

elmuz

[marcorocchini]

I don't use Adobe... I have modify some dll/.exefiles with w32dasm disassembler/axe/winhex to adapt the old In Sync Speed Razor 5.51 NLE editor (a great NLE!) to playback/edit HD files but there is a limitation:

I have disable the external VFAPI importing capabilitier (because it causes jerky playback) and the NLE imports only matrox MPEG2IframeHD/Mpeg2IframeSD or MJPEG files.

So I have to transcode .mxf -->Matrox Mpeg2Iframe

In Sync Blade 2.2 can import from external but it is too instable, it natively have a lot of error point, during exporting crashes... the boris fx is instable: it is impossibile to use Blade 2.2 but it's playback module is ok (DVSink.rzf) but it don'work well in the Speed Razor

My "custom" Speed Razor modify is absolutly stable but import only a native Matrox Mpeg2Iframe (maybe becase the "Software MJPEG" module [mjpeg_avi.rzf] was designed for the matrox codecs (but there is a strange.. if I encode a .mxf file with FFBMC: *** FFMBC -i input.mxf -vcodec mjpeg -an output.avi *** the Speed Razor can import output.avi notwithstanding output.avi is NOT a Matrox Mjpeg avi, but only a generic MJPEG avi. But the problem is FFMBC produce a output. avi 4:2:0 Mjpeg file instead of a 4:2:2]

possibible I would like to encode with FFMPEG directly in Matrox Mpeg2Iframe: is it possibile with FFMPEG?

[Cornucopia]

Ugh! I keep getting suckered into responding to grave robbers lately without checking dates. My mind is obviously on other things. Thank you, El Heggunte.

Scott

[marcorocchini]

patches.libav.org/patch/22165/

does anyone know how to patch FFMPEG and encode in BOXX codec?

Simply I need of a FFMPEG that can encode from .mxf to boxx codec

thanks

[Selur]

the patch you linked has nothing to do with boxx encoding, it adds some small changes which were ment to help with decoding boxx content, but iirc. boxx decoding is still broken,...