MJPEG 70mbits+ 1080p settings

Thank you oedipax. At the speed everything is going I'm not going to nag, and will even resort to the 'down n' dirty frame drop/blend' if there's not much motion.

I'm sure the progress will mount, the avc mode is way good incase it really starts to bug me about going to 25.

Still, I'm trying both shutter speeds and 50 seems to look a lot less like video.

Also, I just keyed something outside in the sunlight, the files hold up incredibly well. Not the best of keys, but I'm chalking it up to doing it hastily. I will do an indoor lit properly spaced out key this evening and post results.

How do I check if the file is indeed 422? I tried the media inspector on quicktime, and can't find any way on ae or bridge to tell me.

30p at a shutter of 50 really isn't bothering me. Also, it's actual 30p not 29.97 on my machine. Is this the case for everyone?

The only reason I'm okay with sloppy conversion at this point is that patience is key, and my clients (without exception for two years) ask for a higher framerate coz they believe it's better. I've given up fighting with them.
 
greymog said:
How do I check if the file is indeed 422? I tried the media inspector on quicktime, and can't find any way on ae or bridge to tell me.
Click to expand...

I've been wondering the same thing. It would be awesome if someone could do a before/after with the 422 patch and some evenly-lit greenscreen. I don't have a greenscreen setup here or I'd do it myself... Although strictly speaking just shooting anything with solid color in before/after fashion and then looking at the individual color channels could tell us a lot.
 
Oedipax said:
I've been wondering the same thing. It would be awesome if someone could do a before/after with the 422 patch and some evenly-lit greenscreen. I don't have a greenscreen setup here or I'd do it myself... Although strictly speaking just shooting anything with solid color in before/after fashion and then looking at the individual color channels could tell us a lot.
Click to expand...

Look for tool called JPEGSnoop, it shows actual subsampling.
 
Just heard of media info. Also tells you everything but haven't tried it, just heard. downloading now.
 
PappasArts, can you clarify? In the first post in this topic, you recommend making the following settings:

MJPEG 1280p Encoder width - input 2096
MJPEG 1280p Encoder buffer - input 4821120

However, the current 422 version of PTools 3.36 does not include these two patches. Are they no longer needed for the 1440x1080p MJEG mod?
 
Guys, I'm headed down to the harbor in about an hour to make a little video with the new AVCHD settings. I'm going to pick up a class 10 card on the way.

Is there a specific set of mjpeg settings with the new 4:2:2 mode that you'd like tested against AVC on similar shots? Or maybe a recipe you'd like to try but haven't yet? Just feed me some numbers, and I'll have some video for you this evening.
 
tester13 said:
They (i.e. MJPEG 1280p Encoder width & MJPEG 1280p Encoder buffer) are included in 1280m->1920m encoder patch.
Click to expand...
If so, PappasArts, could you update the first post in this topic with the correct patch instructions for making the 1440x1080 mod in the current 3.36 version of PTools?
 
mimirsan said:
Just tested the 720p setting you have pappa...im getting around 54-58mb max...shot same scene with 1440...got around 69mb
wierd huh?
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Hey mimirsan,

Not weird at all, 1440x1080 is bigger than 1280X720, so the Mbits would be higher. I'm glad that it's working for you! :-)


Pappas
 
greymog said:
I set 720p, haven't tried the 1440 yet.

As for 720p with pappas's settings...

Oh my effin god.

But on the card that works, damn. I'm happy. I just want PAL.

But still, I'll deal with it in post. I do have one question.

I am now shooting 30p. If I set my shutter to 60 it looks like crap, but it is 180 degrees. If I set it to 50, it looks way better to me, but it ain't 180 degrees.

T
Click to expand...

It's awesome quality isn't it; Mjpeg at such a high Mbits rate...... The 720P's are smooth and upscale very good cause of that. At 30fps it's 1/60th by the book, however if 1/50th is working, go with it. I wish I could answer the Pal question, it's just that I'm not all clear on handling those post techniques with conversions. There are plenty of people here that can because of experience in that area though..


Pappas


Pappas
 
Glad to hear you're having success with that 8gb Sandisk, that's what I ordered from Amazon and it'll be here tomorrow... both types of class 6 cards I've tried (Kingston 8gb and Transcend 16gb) are unpredictable. They'll usually record 5-10 seconds or so but after that it's a toss-up whether it errors out or not.
 
lpowell said:
PappasArts, can you clarify? In the first post in this topic, you recommend making the following settings:

MJPEG 1280p Encoder width - input 2096
MJPEG 1280p Encoder buffer - input 4821120

However, the current 422 version of PTools 3.36 does not include these two patches. Are they no longer needed for the 1440x1080p MJEG mod?
Click to expand...

Hey lpowell,

Rolled into the patch now.

Pappas
 
Transcend 32 GB Class 6 card works well.

Transcend 32 GB Class 6 card works well.

After a day of testing many different settings I can say that the Transcend 32 GB Class 6 card works very well. No write errors at all. Tried high and low detail scenes, tripod still and pans with no problem.

Here are the settings.

AVC 1080 24p "C" settings:
24p native
1080p24 GOP: 8 (6 seems to freeze camera)
buffer: 40.000.000
VBA: 50.000.000
OBA: 52.000.000
LBA: 60.000.000

MJPEG 1080 MJPEG:
MJPEG 1280m Encoder settings.
MJPEG 1280p width - input 1440
MJPEG 1280p height - input 1080
MJPEG SIZE 1280m - SELECT
MJPEG ENCODER 1280m Encoder -SELECT
QUALITY SETTINGS [ 384, 330, 300, 276 ]
TABLE SETTINGS [ 24, 24, 24, 24 ]

Using MJPEG 4:2:2 option seems to stress the card too much unfortunately. 4:2:2 should have a noticeable difference especially for color correction so I am ordering a class 10 card today.
 
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nubins said:
After a day of testing many different settings I can say that the Transcend 32 GB Class 6 card works very well. No write errors at all. Tried high and low detail scenes, tripod still and pans with no problem.

Here are the settings.

AVC 1080 24p "C" settings:
24p native
1080p24 GOP: 8 (6 seems to freeze camera)
buffer: 40.000.000
VBA: 50.000.000
OBA: 52.000.000
LBA: 60.000.000

MJPEG 1080 MJPEG:
MJPEG 1280m Encoder settings.
MJPEG 1280p width - input 1440
MJPEG 1280p height - input 1080
MJPEG SIZE 1280m - SELECT
MJPEG ENCODER 1280m Encoder -SELECT
MJPEG 4:2:2- SELECTION IS OPTIONAL
QUALITY SETTINGS [ 384, 330, 300, 276 ]
TABLE SETTINGS [ 24, 24, 24, 24 ]
Click to expand...


why are you adjusting GOP size?
 
Smaller GOP means more I frames. More I frames = less AVCHD compression.

I used 8 because its a multiple of 24. A usual GOP for MPEG2 for example is 15 (half the frame rate of 29.97 for NTSC). So using multiples of your frame rate "usually" compress better with most compression schemes.
 
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Car3o said:
why are you adjusting GOP size?
Click to expand...
I've also had good results on a Class 6 Transend 16GB SD card after reducing GOP length. I reduced the 1080p GOP from 15 down to 12, and the 720p GOP from 30 down to 15 (after checking the 720p 59.94 -> 29.97 patch as well). These settings produce a 0.5 second GOP length in both modes.

A shorter GOP length produces better image quality when panning and filming moving objects. Since we have more bitrate available now, it seems reasonable to use some of it to reduce GOP length.
 
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