Resolume Forum

The only way I can get a 1920x1080 clip to run smooth in R4 is with the "turn off gloal effect and frame bending" selected. Using Quicktime, h264 24pfs upper field bite rate3.2
This is with macbook pros. Fine on gtx560/ tower without changing preferences.
Is there a way to get a smooth 1080 file on macbook pros with Nvidia Geforce 8600M GT- 256 MB or 512 MB?
Without "turn off gloal effect and frame bending" ?
Thanks!

Use DXV as a codec instead of H264. We developed it especially to get higher frame rates at high resolutions.

goto10 wrote:Use DXV as a codec instead of H264. We developed it especially to get higher frame rates at high resolutions.

I understand you recommend the DXV codec. I am using Adobe Media Encoder to render my files, when I select Quicktime, then the DXV codec -two things are grayed out- limit bitrate, add keyframes. The bitrate is the main one- I need to balance my bitrate, keep it low in order for the files to work on the older Macbooks, or really any macbook as they all either come with only 256 or 512 vram. When I render a 1920x1080 .mov file with the DXV codec it does not play smoothly even just in quicktime (quicktime says a datarate of 269mpbs -?) & does not open at all in VLC. What am I doing wrong? I use i7 windows 7 64bit PCs to do the rendering in adobe. Any help would be great. Thanks-

DXV is an intraframe codec, so it places a keyframe every frame. The bitrate is handled internally, so footage with large color fields will use a lower bitrate than photo realistic footage.

You can't really judge the playback based on QT or VLC, since neither of those apps is hardware accelerated.

Ok, well just rendered a 1080 clip with the DXV codec and it will not plat smoothly in R4 either. This is on an i7 2.6 ghz, nvidia geforce 310.
Bitrate is crazy high, like 273,125 kbps. There is no way to control the bitrate with the DXV codec, I dont think anything will play smoothly with that high a bitrate, any other software I should try to render with?

The software you used to render something with does not affect the playback of the file.

You can always try Photo-JPEG at 75% quality, Apple Intermediate or another codec that uses intraframe compression.

geforce 310? The Low Profile card?
Seriously....I don't believe that this is a good card for Vjing...especially with the DXV codec.

Resolume wrote:
The DXV video codec allows you to mix more video layers on a higher resolution than any other codec in Resolume. How? By doing all the video decompression on the hardware that does it best; the videocard.
-->
...hmm in your case the best could be the CPU instead of the GPU
And it WILL be a jerky playback with a bad graficcard.....



Greeetz
cosmowe

cosmowe wrote:geforce 310? The Low Profile card?
Seriously....I don't believe that this is a good card for Vjing...especially with the DXV codec.

Resolume wrote:
The DXV video codec allows you to mix more video layers on a higher resolution than any other codec in Resolume. How? By doing all the video decompression on the hardware that does it best; the videocard.


And it WILL be a jerky playback with a bad graficcard.....



Greeetz
cosmowe

That card, the 310 is just what I have here at work. I have a custom build i7 mac/ pc rack at the house with an nvidia gtx 560 2gig vram. This card to be exact: http://www.amazon.com/EVGA-Superclocked ... B0050I1PI8
Yeah sure that will play anything I throw at it just fine but that is not my goal.

I am looking to come up with a standard 1080 format that will work on most systems with a base system being: macbook pros with Nvidia Geforce 8600M GT- 256 MB or 512 MB. Laptops, MBP's (what it seems a lot of people use) are usually limited with 256 MB or 512 MB vram. If you can control the bitrate you can get 1080 files to play on such systems. I ask about other rendering software so I can control the bitrate, I know the render software does not effect playback, but it can give control over the file it creates. Am I the only one that thinks 270 mpbs bitrate is crazy? I am using 8.5 mbps h.264 mov and still get good quality video, plays fine on a 256 mb Nvidia Geforce 8600M macbook pro in R4. What are other people getting for a bitrates and what are you using to render? I would be all about the DXV codex if I could get that bitrate under control, anyone know a way to do that? Anyone have arguments against h.264? Thanks!

goto10 already wrote it:
The bitrate is handled internally, so footage with large color fields will use a lower bitrate than photo realistic footage.
= You will not be able to set another bitrate with any other software.

Anyone have arguments against h.264

DXV is made for Resolume so you'll have the best performance with it.
I've made some tests in the past.. not with H264....just have a look:
viewtopic.php?f=7&t=8441


Greets
cosmowe

Thank you for the link, I had read that post in the past. Your source file is 35000 kbps, mine is about 45000 kbps yet when rendering out with DXV it jumps up to 273000 kbps.
Maybe I don't understand the "handled internally, so footage with large color fields will use a lower bitrate than photo realistic footage" statement, basically the bitrate is handled with in the codec, ok, but 273000 kbps?
Interesting though, if I render the same source clip that is 1080 clip down to SD 720x480 it has a bitrate of about 43000 kbps and of course plays smooth in R4 and everywhere.. Tried every setting I have, changed the "quality" to 50% but still get 273000 kbps.. Photo Jpeg gets 360000 kbps. I must be missing something here.. Cosmowe, how did you get that test clip in the post you mention to be Mov/Dvx- 1920x1080 30p (Bitrate: 35000 kbps / noaudio)?