ffmpeg/ffmbc metadata

[marcorocchini]

thanks to poison this procedure seems work ok to "transfer" timecode metadata from .mxf source into .avi destination

ffmpeg -i c0020.mxf -f ffmetadata metadata.txt

ffmpeg -y -i c0020.avi -i metadata.txt -map_metadata 1 -vcodec copy -an -id3v2_version 3 -vtag MJPG c0020a.avi

Now I wonder:

can I do the same thing with ffmbc?

Why? because my nle bad digest the vprp table created with ffmpeg.

Seems to me that ffmbc don't write vprp, so output of ffmbc is clean. But I cannot do the timecode transfer.

I have try ffmbc-i c0020.mxf -f ffmetadata metadata.txt etc.. but seems is no correct.

Please there i a way to use ffmbc?

thanks!

[poisondeathray]

Not until ffmbc gets an update and synced to current ffmpeg (it's about a year behind)

[marcorocchini]

in effect ffmbc sleep.

There is no possibilities to skip writing vprp data in ffmpeg?

I have try to encode the same file with ffmpeg and with ffmbc: with the ffmbc one seems to me there is no trace of vprp, for nothing

[poisondeathray]

There is no possibilities to skip writing vprp data in ffmpeg?

Maybe you can hire someone to make a custom build for you, modify the avienc.c which is the AVI muxer portion

Or look at the ffmbc source, and build a custom ffmpeg from the ffmbc part

[marcorocchini]

at the moment I have not answer from zeranoe. Do you think is tecnically possible have in ffmpeg the vfw encoding of 3d party codecs?

ffmbc source is easly available but I don't know how is possible "emdedding" all to achieve a binary file ffmpeg.exe

Also I hope a custom build it is not something from the excessive cost, what I'm doing now is a gift for my cat :=)

However, it is now facing another small problem: when I the ffmpeg -y -i c0020.avi -i metadata.txt -map_metadata 1 -vcodec copy -an -id3v2_version 3 -vtag MJPG c0020a.avi the encoding is is strangely slow although the option "vcodec copy"

[poisondeathray]

I don't know about 3rd party codecs and ffmpeg. Since mencoder can, possibly ffmpeg can

Yes all sources are available - so you swap parts of the ffmbc source with the ffmpeg source when compiling your ffmpeg custom build, or pay someone to do it

[racer-x]

Or try a new nle. Have you tried shotcut? It's free and runs on top of ffmpeg. Who knows, you may actually like it.

[poisondeathray]

Or try a new nle. Have you tried shortcut? It's free and runs on top of ffmpeg. Who knows, you may actually like it.

LOL - you don't know the backstory

A modern NLE will actually solve all his problems, because he can import xdcamhd422 clips natively, timecode, smart render (e.g. vegas)

[El Heggunte]

......
when I the ffmpeg -y -i c0020.avi -i metadata.txt -map_metadata 1 -vcodec copy -an -id3v2_version 3 -vtag MJPG c0020a.avi the encoding is is strangely slow although the option "vcodec copy"

-id3v2_version 3 <= this does not compute

[racer-x]

I'm pretty sure shotcut can import and export xdcam.

[poisondeathray]

......
when I the ffmpeg -y -i c0020.avi -i metadata.txt -map_metadata 1 -vcodec copy -an -id3v2_version 3 -vtag MJPG c0020a.avi the encoding is is strangely slow although the option "vcodec copy"

-id3v2_version 3 <= this does not compute

That's actually not necessary - it's for other metadata id3 tags. He's only interested in the timecode

I'm pretty sure shotcut can import and export xdcam.

Many things can, but he's "married" to the dinosaur speedrazor

[marcorocchini]

Or try a new nle

grrrrrrrrrrrrrrrrrrrrrrrrrrrrrr

[racer-x]

Cute cat........or whatever that is. I guess I can't help you. PDR is your best hope.

[poisondeathray]

Looks like a black tribble ...Star Trek

[racer-x]

Funny, a Tribble was the first thing I thought of. I remember doing a play in High School Literature class on that very Star Trek episode. I played Spock if I remember correctly........

[racer-x]

I know you are not interested in using another NLE, but here is a short selection of the output formats it can do for those that may be interested:

[marcorocchini]

a little yes.. i'm interested to change nle but I have repeated genomic sequences of cat.. I will change slowly nle. In the meantime, however, the change of speed razor, now, it works perfectly. I had to swap and change some. dll taken from another dinosaur .nle In Sync Blade (SR.dll, callback.dll, rzfile.dll, DVSync.rzf,scaleconverter.rzf) initially have a lot of problem (jerky playback, crashes). In recent months, there was only the problem of the timecode of the clips, but with this the problem is half-solved:



There are month that I'm trying the machine and is stable.

Speed Razor is absolutly the best in audio manage into the timeline: for news, with little time available this is crucial. The problem of this is my modified version is the "funnel hood" of the mjpg. However to the naked eye I challenge you to find differences.. except you have the cat's eye ^^

[marcorocchini]

this is my batch automated (dos) tool:

deltree c:\temp
md c:\temp
cd /d c:\temp
for %%x in (d:\galvanina\*.mxf) do type NUL > %%~nx.avi
SET if_it_exists_here=v:\automazioneclip\ouput
SET then_delete_it_there=C:\temp
CD /d v:\automazioneclip\output
FOR %%A IN (*.*) DO (
IF EXIST "%then_delete_it_there%\%%~nxA" DEL /Q /F %then_delete_it_there%\%%~nxA
)
cd /d c:\temp
del temp.avi
set ext=.avi
set file=
if not exist *%ext% goto:EOF
if exist temp%ext% goto:EOF
for /f "delims=" %%G in ('dir *%ext% /b /o:-d /t:w') do set file=%%G
for %%H in ("%file%") do set filename=%%~nH
echo %filename% | clip 2>nul if %errorlevel%==1 goto:EOF
ren %file% temp%ext%
c:\virtualdubnuovo\vdub.exe /max d:\galvanina\%filename%.mxf /s c:\marco.vcf

v:\automazioneclip\core\ffmpeg -i d:\galvanina\%filename%.mxf -f ffmetadata metadata.txt
v:\automazioneclip\core\ffmpeg -y -i v:\automazioneclip\output\temp.avi -i metadata.txt -map_metadata 1 -vcodec copy -an -id3v2_version 3 -vtag MJPG v:\automazioneclip\output\temp1.avi


ren c:\temp\temp.avi %filename%.tmp
ren v:\automazioneclip\output\temp1.avi %filename%.avi
del c:\temp\metadata.txt
del v:\automazioneclip\output\temp.avi
exit /b


it convert all .mxf file in (e.g) d:\galvanina and generate .avi mjpeg file in o:\ (subst of v:\automazioneclip\output)
maybe not even Shotcat have an interface for batch processing so advanced ^^...

[poisondeathray]

Speed Razor is absolutly the best in audio manage into the timeline: for news, with little time available this is crucial. The problem of this is my modified version is the "funnel hood" of the mjpg. However to the naked eye I challenge you to find differences.. except you have the cat's eye ^^

I would argue that in ENG scenarios, it's more important not to have to re-encode everything, re-tag everything because it wastes TIME. Yes quick turnaround is important. But even if you have an automated batch file, a person with a good NLE will be finished editing and submitted before you even start to edit! What does your cat / tribble have to say about that ?

[El Heggunte]

What does your cat / tribble have to say about that ?

His cat says, «Speed Razor means trouble in Klingonese»

[marcorocchini]

mmymmm I think you are jealous of my new, shin, powerful super NLE

[marcorocchini]

......
when I the ffmpeg -y -i c0020.avi -i metadata.txt -map_metadata 1 -vcodec copy -an -id3v2_version 3 -vtag MJPG c0020a.avi the encoding is is strangely slow although the option "vcodec copy"

-id3v2_version 3 <= this does not compute

Hi again,

please considering ffmpeg -i c0020.mxf -f ffmetadata metadata.txt or other ways (ffmpeg -c0020.mxf 2> catch.txt)
is there possibily to get timecode from a .mxf file and put it on a .txt file?

e.g. I have c0020.mxf


;FFMETADATA1
uid=41821e00-3664-05c1-0270-08004602023b
generation_uid=41821e00-3664-05c2-0270-08004602023b
company_name=SONY
product_name=Opt
product_version=1.22
product_uid=060e2b34-0401-0103-0e06-012002010300
modification_date=2013-05-24 22:12:18
timecode=01:34:21:15

can I do a file .txt that contain only 01:34:21:15 ?

thanks

possibly without using the "for" istruction if is necessary a little batch Thanks