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Messages - a1ex

#10876
In LV it's not needed, because contrast detection is very accurate.

http://www.lensrentals.com/blog/2012/07/autofocus-reality-part-1-center-point-single-shot-accuracy
#10877
How to reproduce the audio remote shot issue? On my 5D2 it takes a single picture.
#10878
QuoteIs the .422 data (silent pics) considered the state of the feed for the h264 encoder?

Yes, this is the input for the H264 encoder. You can alter some data in those buffers and it will show up in the recorded video.
#10879
Feature Requests / Re: focus trap in video
August 30, 2012, 11:51:16 AM
Not possible (look at MZ bars when idle). There's no absolute method for evaluating focus; the current one will do false triggers when there's little or no movement.
#10880
Why not trying before asking?!
#10881
Feature Requests / Re: noise gate
August 30, 2012, 11:42:14 AM
Any decent audio editor has this.

For example: http://wiki.audacityteam.org/wiki/Nyquist_Effect_Plug-ins#Noise_Gate
#10882
5D3 has it, exactly as you describe it.

It's not easy to implement; if it can be done, there will be a lot of flicker when moving one image.
#10883
Already done in 2.3 with arrow keys ;)
#10884
Archived porting threads / Re: Canon 5D Mark III
August 30, 2012, 11:13:33 AM
Fun stuff: the 5D3 has a headphone jack and it's possible to upload music on it and listen while taking pictures :)

On-topic: audio meters are working, but Canon has them too.
#10885
Archived porting threads / Re: Canon 5D Mark III
August 30, 2012, 11:06:01 AM
CARD_DRIVE is used in string concatenation at compile time ;)
#10886
1%: you need to enable ENGIO messages.


[JPCORE] SetEncodeH264Parameter I 1920,1088,1
[JPCORE] SetEncodeH264Parameter P 1920,1088,2


This should be what happens when encoding one frame (5D2): http://pastebin.com/J21HuvLX
#10887
I don't think bahlik's issue is the same, because the description is different ("some flickering screen").
#10888
Archived porting threads / Re: Canon 5D Mark III
August 30, 2012, 10:10:59 AM
I didn't play much with it, but it has an auto setting. Not sure what it does, I didn't read the manual.

Good point about ML on the other type card that you normally use. However, this complicates things a bit, as ML was designed to work with a single card drive, and it would require major code changes (those CARD_DRIVE"path/to/file" constructs would no longer work if CARD_DRIVE is not a constant).
#10889
Archived porting threads / Re: Canon 5D Mark III
August 30, 2012, 09:20:08 AM
Yes, record the 5x zoom image via HDMI - it's 1:1 crop on all Canon cameras ;)
#10890
Archived porting threads / Re: Canon 5D Mark III
August 30, 2012, 08:39:47 AM
Here you go: http://en.wikipedia.org/wiki/Quantization_%28signal_processing%29 and http://vcodex.blogspot.com/2009/04/h264-quantization-parameter.html

In all Canon DSLRs, the algorithm is VBR with a max bitrate limit. When this limit is low enough, the bitrate is almost constant in practice, so this combination of settings is labeled as CBR. When this limit is raised, some scenes will not have enough detail to increase the bitrate (in most cases because quantizers are at lowest level, so quality is as high as it can get).

There is hope for MJPEG 422 or clean HDMI out though :)
#10891
General Help Q&A / Re: 50D Underexposing in LiveView
August 30, 2012, 08:24:43 AM
You will receive help as long as you do your homework. And you have received help and solved both of your issues, so what's the problem?

The question was serious, it was something already written in bold, as "Very important" or "Important notes", not something thrown "on a page amoungst all the other hundreds of pages". It's something that can't be fixed, so you need to know that when using ML. What should I do to make sure the users read this?
#10892
Put the battery door back.
#10893
General Help Q&A / Re: 600D - live view screen glitch
August 29, 2012, 11:03:03 PM
Is FPS override on?
#10894
General Help Q&A / Re: 50D Underexposing in LiveView
August 29, 2012, 10:41:34 PM
Then, can you explain why we have to say the same things over and over again?

Should they be written in blinking red?
#10895
Update error means you should format the card from the camera.
#10896
There is an install guide, you need to follow it ;)
#10897
General Help Q&A / Re: 50D Underexposing in LiveView
August 29, 2012, 06:32:21 PM
Turn off FPS override.

Also, why people don't read bold warnings? The shutdown problem is mentioned 3 times in the install guide, one time in the user guide (under Important Notes) and also here: http://www.magiclantern.fm/bestpractices
#10898
Archived porting threads / Re: Canon 5D Mark III
August 29, 2012, 04:36:47 PM
It's not the same as in digic 4, it was researched from scratch. I've exposed all the H.264 parameters to Marvin and that's all he could control.

Those are the parameters for ALL-I. Most of them give ERR70 if changed.

Transform8x8Flag = 2
Profile = 100
Level = 51
BitRate = 90000000
EntropyCodingMode = 0
IntraPicInitQP = 20
InterPicInitQP = 20
QpOffsetForB = 0
MinQpI = 10
MinQpP = 10
MinQpB = 10
MaxQpI = 51
MaxQpP = 51
MaxQpB = 51
MinBitrate = 0
MaxBitrate = 0
SarWidth = 0
SarHeight = 0
AspectRatioIdc = 1
VideoFmtAndVspFlag = 81
VideoFullRangeFlag = 1
TimingInfoPresentFlag = 0
RateControlEnable = 2
ScalingMatrices = 0
pScalingMatrixAddr[0] = 0
pScalingMatrixAddr[1] = 0
pScalingMatrixAddr[2] = 0
pScalingMatrixAddr[3] = 0
pScalingMatrixAddr[4] = 0
pScalingMatrixAddr[5] = 0
#10899
Archived porting threads / Re: Canon 5D Mark III
August 29, 2012, 04:07:04 PM
I can change max bitrate and quantizers, but that's all.
#10900
Archived porting threads / Re: Canon 5D Mark III
August 29, 2012, 01:19:08 PM
Right, so it's practically the same thing as if you would install ML in the camera (from a convenience's point of view).

Zebras and peaking are already working, even fast zebras worked from the first try :)