stoneinapond
Veteran
Managed tp record about 10 seconds in 400Mbit mode on a SanDisk Extreme Pro 95MB/s. Didn't want to push it any further. Camera not very happy about playback, but it recorded. :2vrolijk_08:
GH5 ALL-Intra 4:2:2 10bit recording mode with 400 Mbps
- Thread starter Vardalos
- Start date
Managed tp record about 10 seconds in 400Mbit mode on a SanDisk Extreme Pro 95MB/s. Didn't want to push it any further. Camera not very happy about playback, but it recorded. :2vrolijk_08:
Cary Knoop
Veteran
Great!
Anyone know how to record 4992 x 3744 200 Mbps 4:4:4 10 bit?
This mode is not available in the 4:3 Anamorphic options and the 6K burst recording does not show 4:2:2 10 bit.
How do I record it?
That's kind of my point, though. I think you're limiting the conversation when you're comparing bitrates. How does H.265 look at it's best available on that device. How does H.264 look at it's best available on that device. How does ProRes look at it's best available on that device.
ProRes in 4K will have massive bitrates compared to MPEG variants. But that's incidental. Does it look better than the MPEG variants is the question that needs answering.
Cary Knoop
Veteran
It seems you insist on comparing apples with oranges, compare some low bitrate H.264 with a high bitrate ProRes and then proclaim: see ProRes is superior!
Again with similar bitrates and with similar intra options ProRes and H.264 look similar, not in the least because it is basically the same technology. However H.265 will look better!
Well, both H.264 and H.265 can compress all the way to lossless, so at its best it is lossless.
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According to the specs, there is no 4:2:2 10-bit option when recording 4992 x 3744 resolution (what Panasonic is calling High Resolution Anamorphic mode). It's just 4:2:0 10-bit at 200 Mbps (H.265) at this resolution. Which is basically the same recording format as in the 4:3 aspect ratio 6K Photo mode that existed before.
Only the lower resolution 3328 x 2496 is 4:2:2 10-bit in 400 Mbps All-Intra recording (I assume this is H.264 although it is not entirely clear from the specs).
Cary Knoop
Veteran
According to this table from Panasonic it should be available (see item 6):
http://www.panasonic.com/global/consumer/lumix/gh5_firmware.html
EspenGlomsvoll
Member
GH5 update
GH5 update
Hi!
Just upgraded to V2 on the GH5. I still cant lock (deactivate) the DISP. button. Anyone else also have this problem or know how to do it?
Best regards from
Espen.
GH5 update
Hi!
Just upgraded to V2 on the GH5. I still cant lock (deactivate) the DISP. button. Anyone else also have this problem or know how to do it?
Best regards from
Espen.
Yeah, it looks like it wasn't implemented correctly in the ver 2.0 build. Hopefully a 2.01 build or something like this will be out soon to fix this.
EspenGlomsvoll
Member
Thanx for the fast reply Dingo!
To bad. i was really looking forward to that on the upgrade
To bad. i was really looking forward to that on the upgrade
Cary Knoop
Veteran
Found it!
It is in the Anamorphic menu page 1 (mine seems to have defaulted to page 2 presumably due to loading the Release 1.1 defaults).
HVEC compression looks good, this may become my default recording mode!
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That's interesting, the table on page 3 of this PDF from Panasonic looks very similar to the webpage, but lists the 4992 x 3744 modes as 10-bit 4:2:0:
http://av.jpn.support.panasonic.com/share2/eww/en/dsc/fts/pdf/GH5_V20_ENG.pdf
I wonder which is correct?
Cary Knoop
Veteran
4:2:0 10 bit seems consistent with the media info:
General
Complete name : xxxx
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42 (mp42/hvc1)
File size : 122 MiB
Duration : 5s 506ms
Overall bit rate : 186 Mbps
Encoded date : UTC 2017-09-27 11:49:09
Tagged date : UTC 2017-09-27 11:49:09
PANA : VØ)ûr‰ü1”êñÊ5p#i”`
Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L6@High
Codec ID : hvc1
Codec ID/Info : High Efficiency Video Coding
Duration : 5s 506ms
Bit rate : 184 Mbps
Width : 4 992 pixels
Height : 3 744 pixels
Display aspect ratio : 4:3
Frame rate mode : Constant
Frame rate : 29.970 (30000/1001) fps
Original frame rate : 59.940 (60000/1001) fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.329
Stream size : 121 MiB (99%)
Encoded date : UTC 2017-09-27 11:49:09
Tagged date : UTC 2017-09-27 11:49:09
Color range : Full
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
John Godden
Well-known member
Please post up links to All-I vs LGOP motion vids. The few I found on youtube (so far) were no bueno in terms of IQ improvements. Probably/hopefully just youtube killing the IQ. ???
Cary Knoop
Veteran
You can't test All_Intra on YouTube because YouTube re-encodes everything long GOP, it would be like trying to test a color image on a black and white TV.
For comparisons I would suggest to use Dropbox.
Not only does YouTube re-encode as long GOP, but also generally as 8-bit 4:2:0 (unless the video is uploaded as HDR, in which case it would be encoded as 10-bit 4:2:0). Also for more recent 4K uploads, YouTube has stopped delivering them in 4K H.264 format and is only making these available in VP9:
http://www.streamingmedia.com/Artic...Encoding;-Will-Apple-Get-on-Board-115970.aspx
The typical bitrate for a YouTube 4Kp30 video encoded in VP9 is about 16-18 Mbps. VP9 is roughly twice as efficient as H.264 (or maybe a bit less, depending on the encoder and parameters), so you're looking at the quality of about a 32-36 Mbps H.264 encode of the video.
As Cary suggests, if you want to do any comparisons of differences of the in-camera video encoding, you really need to look at the original files straight out of the camera.