[jamsurf]

Hi All ,

i have made a landscape project on three days .

1000 keyframes , at 25 frames per second , 1280x760 resolution ,
saved .jpg at 100 % quality and each frame 800 Kb .

I have send all , and it seems that the people of postproduct . couldnt
made the video correctly . It goes jumping .
They need for TV i think , but need 1280x760 and good quality .

i have made proves with combustion , and at 1280x760 , for not
jumping i must compress a lot and looose quality . If I output to
half size then all ok .( they were using always for a .mov output ) .

Then waht is the way for having a video for reproduction at that
quality and size and goes smooth like when half size .
is a crazy thing what im saying ?
After three days of streesed work against time , it seems the probability
of not taking the money because this theme , even , the postproduction
is not my theme , but yes they could say me that wanted all that
frames together running on a video format .

Please , if someone can give me some light , i would be extremely
gratefull .

[firebird]

hi jamsurf!

as far as i understood you, you are trying to compress your movie, so it rans smoothly. have you tried sorensen video compressor. this works very well for me. i think this compression plug in comes along with the latest quicktimeplayer. sure you will loose a bit of quality, but if you set all parameters right, you can hardly tell the difference.

good luck

[eldo]

its definetly not your task to compress the video. deliver uncompressed single-frames or an uncompressed *.avi or *.mov file. that should do it. otherwise the postpro-guys are idiots that want to fool you

[jamsurf]

Yeah , i know .
The postprod guy say that make with the best , H264 codec and dont go .
???
I have proved now with sorensen 3 and works great , it loose
some quality but feels ok ( at least at my taste , now they will say ) .

The compressed 1280x720 is uploaded at their ftp , mailed them some minutes
ago , and the video goes smoothly .

From an uncompressed 2,6 Gb quicktime , now is 28 MB quicktime .

Thanks a lot .

[michaelplogue]

Eldo is absolutely correct.

Your job was to provide the single frame renderings. It's the post-prodduction people's job to create the video file. If they can't do it correctly, that's their problem, not yours.

They should also know that if this is going to be broadcast on television, they should be providing an uncompressed video file to the studio, not a compressed one - unless the studio specify's a certain format they prefer to use.

It sounds like the post-prod folks really don't know what they are doing.

[j_man]

it could be that they are interpreting the footage wrong, if they are treating it like 29.97 NTSC dropcode then it will jump in a regular pattern.

If it is jumping because of the data rate, then this doesn't matter becuase they should be editing it on a professional system, that will encode it to the relevent codec playback anyway.

What are you working with? PAL, NTSC? what is the final output? digiBeta? DVD? DVCAM?

You should not have to render at such a high resolution unless you are going to output HD.

I would recommend posting this question at another board such as the video and compositing board at CGtalk.

Cheers,

Josh.

[tom]

I don't know what kind of jump you're suffering from but you should check the following:
- Do you have motion blur? If not, you may experience interrupted motion.
- Do you render into fields (lower/upper first)? If you render into wrong fields or playing with incompatible output hardware, this may cause flicker.
- Is your/their computer capable enough playing such bitrate you've/they've compressed.

[jamsurf]

Thanks ,

before rendering , always on this case , that is going to be a postprod
people , i question what they want .
i made what they say : 25 fps , hd 720 res , .jpg 100% . No fields .
Today at night i encoded too with H.264 , and goes well , with a limit
to 5000 Kbps data rate .

But Tom , is not better make the motion blur on postprod , or
i would must made on the renders output ?

I Agree that in this case that is going to be a postprod people , only frames needed .
But i have had notice that they were using aftereffects , not very high
software for editing i think .

[glebe digital]

Thanks ,

before rendering , always on this case , that is going to be a postprod
people , i question what they want .
i made what they say : 25 fps , hd 720 res , .jpg 100% . No fields .
Today at night i encoded too with H.264 , and goes well , with a limit
to 5000 Kbps data rate .

But Tom , is not better make the motion blur on postprod , or
i would must made on the renders output ?

I Agree that in this case that is going to be a postprod people , only frames needed .
But i have had notice that they were using aftereffects , not very high
software for editing i think .

jamsurf, you did the right thing......always get the client's requirement in writing.
AE still very good Ppod software, but maybe they need to check they've got their 'import preferences' set up correctly, AE defaults to 30fps for import, so unless they've changed that they'll be getting some 'jumping' on the output.