Re: [Mxflib-developers] Reading MXF Files from Panasonic P2?

[Matt Beard <matt@be...>]

Hi,

It seems from the link that ffmpeg is using MXFTk.

This is the mailing list for MXFLib developers.

However...

It seems that the problem should be quite easy to solve if you can get
MXFTk to give you access to the single clip-wrapped essence KLV. DV is
CBR (constant-bit-rate) so each frame of DV is exactly the same size.
You could then easily read 1 frame at a time without needing to do any
parsing of the stream.

Matt


On 13/03/2008, Richard Spindler <richard.spindler@...> wrote:
> Hi,
>
>  I have a little problem here, and I though that the right people to
>  help my out with this might be on this list.
>
>  I am programming a little video editing software at:
>  http://www.openmovieeditor.org/
>  And I had a couple of friends ask me about how they can read footage
>  from their HVX200 Camera on Linux. But unfortunatly I couldn't help
>  them.
>
>  The ffmpeg project has limited support for Codecs embedded in MXF, but
>  it does not work for that particular kind of file:
>  http://thread.gmane.org/gmane.comp.video.ffmpeg.devel/40655
>
>  I've tried to understand how to work with mxf, but it appears to me
>  that it also handles a lot of stuff that I am not particularly
>  interested in, I just want to import videos from p2 cards (DVCPRO50
>  only for now), for playback and editing.
>
>  I would like to submit a patch to ffmpeg to fix that feature, but the
>  MXF stuff is just overwhelming and I don't know where to start, as I'd
>  rather not dig through piles of documentation that might be only
>  mildly related to what I want to do.
>
>
>  So, can anyone point me into the right direction and just give me some
>  clues about what I would need to know to do this, and where I would
>  find this information?
>
>  I would also like to get into contact with anyone how would like to
>  have P2 MXF in ffmpeg, or who would like to help out with making this
>  happen. :-)
>
>
>  Thank you so much,
>  Cheers,
>  and have fun
>  -Richard
>
>  PS.: Sorry, if this might be a little Off-Topic, no offense intended. :-)
>
>  -------------------------------------------------------------------------
>  This SF.net email is sponsored by: Microsoft
>  Defy all challenges. Microsoft(R) Visual Studio 2008.
>  http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
>  _______________________________________________
>  Mxflib-developers mailing list
>  Mxflib-developers@...
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>
>
>

[Mxflib-developers] Reading MXF Files from Panasonic P2?

[Richard Spindler <richard.spindler@gm...>]

Hi,

I have a little problem here, and I though that the right people to
help my out with this might be on this list.

I am programming a little video editing software at:
http://www.openmovieeditor.org/
And I had a couple of friends ask me about how they can read footage
from their HVX200 Camera on Linux. But unfortunatly I couldn't help
them.

The ffmpeg project has limited support for Codecs embedded in MXF, but
it does not work for that particular kind of file:
http://thread.gmane.org/gmane.comp.video.ffmpeg.devel/40655

I've tried to understand how to work with mxf, but it appears to me
that it also handles a lot of stuff that I am not particularly
interested in, I just want to import videos from p2 cards (DVCPRO50
only for now), for playback and editing.

I would like to submit a patch to ffmpeg to fix that feature, but the
MXF stuff is just overwhelming and I don't know where to start, as I'd
rather not dig through piles of documentation that might be only
mildly related to what I want to do.


So, can anyone point me into the right direction and just give me some
clues about what I would need to know to do this, and where I would
find this information?

I would also like to get into contact with anyone how would like to
have P2 MXF in ffmpeg, or who would like to help out with making this
happen. :-)


Thank you so much,
Cheers,
and have fun
-Richard

PS.: Sorry, if this might be a little Off-Topic, no offense intended. :-)

Re: [Mxflib-developers] Reading MXF Files from Panasonic P2?

[Matt Beard <matt@be...>]

Hi,

It seems from the link that ffmpeg is using MXFTk.

This is the mailing list for MXFLib developers.

However...

It seems that the problem should be quite easy to solve if you can get
MXFTk to give you access to the single clip-wrapped essence KLV. DV is
CBR (constant-bit-rate) so each frame of DV is exactly the same size.
You could then easily read 1 frame at a time without needing to do any
parsing of the stream.

Matt


On 13/03/2008, Richard Spindler <richard.spindler@...> wrote:
> Hi,
>
>  I have a little problem here, and I though that the right people to
>  help my out with this might be on this list.
>
>  I am programming a little video editing software at:
>  http://www.openmovieeditor.org/
>  And I had a couple of friends ask me about how they can read footage
>  from their HVX200 Camera on Linux. But unfortunatly I couldn't help
>  them.
>
>  The ffmpeg project has limited support for Codecs embedded in MXF, but
>  it does not work for that particular kind of file:
>  http://thread.gmane.org/gmane.comp.video.ffmpeg.devel/40655
>
>  I've tried to understand how to work with mxf, but it appears to me
>  that it also handles a lot of stuff that I am not particularly
>  interested in, I just want to import videos from p2 cards (DVCPRO50
>  only for now), for playback and editing.
>
>  I would like to submit a patch to ffmpeg to fix that feature, but the
>  MXF stuff is just overwhelming and I don't know where to start, as I'd
>  rather not dig through piles of documentation that might be only
>  mildly related to what I want to do.
>
>
>  So, can anyone point me into the right direction and just give me some
>  clues about what I would need to know to do this, and where I would
>  find this information?
>
>  I would also like to get into contact with anyone how would like to
>  have P2 MXF in ffmpeg, or who would like to help out with making this
>  happen. :-)
>
>
>  Thank you so much,
>  Cheers,
>  and have fun
>  -Richard
>
>  PS.: Sorry, if this might be a little Off-Topic, no offense intended. :-)
>
>  -------------------------------------------------------------------------
>  This SF.net email is sponsored by: Microsoft
>  Defy all challenges. Microsoft(R) Visual Studio 2008.
>  http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
>  _______________________________________________
>  Mxflib-developers mailing list
>  Mxflib-developers@...
>  https://lists.sourceforge.net/lists/listinfo/mxflib-developers
>
>
>