Re: [CinCV] P2 or Red Proxies

cool.

just out of curiosity. how close to dv is dvcpro hd/100? just a
difference in resolutions, bitrate and 4:2:2 subsampling or also
other stuff?

/s

On Mar 31, 2008, at 19:56, Richard Spindler wrote:

> 2008/3/29, Richard Spindler <richard.spindler@???>:
>> 2008/3/29, Burkhard Plaum <plaum@???>:
>>> Can be unzipped with unzip. It creates a directory, which
>>> contains an xml
>>> file and one mxf file for each A/V stream. If I interpret the
>>> xml correctly,
>>> and the MXFs are clip-wrapped, this can be decoded even without
>>> an MXF
>>> demuxer because the xml file already contains the start offset
>>> of the
>>> Data, the video codec and and the size. That's enough to fire up
>>> a raw-dv
>>> parser.
>> Indeed, this is also the case for the P2 samples that I have, I guess
>> this will make an implementation quite easy, I think I can do a tiny
>> utility to copy the contents into a raw DV file, this should make it
>> easier for existing software to handle the footage, I guess.
>
> Ok, this was easy enough.
>
> The following tool will extract the video data out of an MXF Project,
> and dump those into a file raw.dv. It does not do anything to the
> audio.
>
> http://propirate.net/oracle/zipfiles/mxf-dv-dump.tar.gz
>
> If you use the DVCPRO50 codec, the file should work with a
> sufficiently recent version of ffmpeg.
>
> If you manage to apply the patch that I linked in this thread, you
> should even be able to work with DVCPRO HD footage in ffmpeg, altough
> I haven't tried it.
>
> The included README says:
> -----8<--------------------------
> This is a trivial utility that extracts the raw dv data from P2 MXF
> Cards.
>
> it is very simple and does not do many sanity checks, use at your
> own risk.
>
> you call the program with 2 arguments:
>
> 1: The /please/use/your/path/CONTENT/CLIP/blabla.XML argument
> specifies the xml file of the video
> you want to extract
>
> 2: the second argument gives the path to the P2 Project:
> /please/use/your/path/CONTENT/
>
> The utility will create a file called "raw.dv" in the current folder.
>
> Thats all.
>
> Cheers
> -Richard
>
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