Video Preview sucking up 100% CPU?

[Brad Leigh]

Make sure your project setting match your media otherwise vegas tries to convert on the fly.
B

i7 2600 3.4 Ghz 8Gig Ram , Win 7 Pro, Vegas Pro 12

[Graham Bernard]

What is :”Standard HiDef Video”?

G

Video Content Creator and Potter
PC 7 64-bit 16gb * Intel® Core™i7-2600k Quad Core 3.40GHz * 2GB NVIDIA GEFORCE GTX 560 Ti
Cameras: Canon XF300 + PowerShot SX50HS Bridge

[Matt Schwartz]

Hmmmm. One video source is .mp4 files coming from GOPRO, another is .mts files coming from a Panasonic camcorder. All 1920×1080 23.976 fps, AVC as reported by mediainfo. But should just PREVIEWING these together, max out both my CPU’s?

[Graham Bernard]

_______________________________________________________________

[Matt Schwartz] ” One video source is .mp4 files coming from GOPRO, another is .mts”
_______________________________________________________________

Well, that’s a mix and may well have a choking affect on your PC.

However, what you aren’t telling us is what are your project settings? Which in turn could have a bearing on your:-

_______________________________________________________________

[Matt Schwartz] “But should just PREVIEWING these together, max out both my CPU’s?”
_______________________________________________________________

I’d start over in doing a test:

A] Create a 2 minute Project that is for JUST the FIRST set of Media and have your Project Settings set to that Media. Preview, and note the responses of Vegas. Good? Bad?

B] Create a 2 minute Project that is for JUST the SECOND set of Media and have your Project Settings set to that Media. Preview, and note the responses of Vegas. Good? Bad?

I find that being methodical, in these matters, helps me to unearth what I’m doing.

So, start off with what you know and build up complexity from a base of comfort and usability. Yes it’s boring and dull, but could get you to a point of using Vegas with more fluidity and that’s the goal here.

Cheers

Grazie

Video Content Creator and Potter
PC 7 64-bit 16gb * Intel® Core™i7-2600k Quad Core 3.40GHz * 2GB NVIDIA GEFORCE GTX 560 Ti
Cameras: Canon XF300 + PowerShot SX50HS Bridge

[Norman Black]

High bitrate AVC does requires a lot of CPU juice to decode, so yes a single AVC stream can max you out, and two can max out both cores.

On my machine, core i7 860 2.9Ghz, my GoPro AVC 1080p30 20Mbps files are close to maxing out a single logical core. 1080p60 30Mbps files cannot preview because because that logical core is over max. In these situations my CPU percentage is very low, like 15%. The other cores are not doing anything since a single CPU does the decode of a single video stream.

[Matt Schwartz]

I checked further with MEDIAINFO. Yes, my GoPro 24p AV files are a bitrate of 30 MBS, the other .MTS AV files are 18 MBS. Hmmm.

I cannot complain too much I guess. My lowly i3 540 dual core CPU Intel box CAN display my 30 mbps GOPRO files in preview mode at least although at 70% CPU Capacity.

So the bigger question I have is, why does the Windows Media Player which is obviously decoding as well, why does that fly in full screen mode with either stream, and use less than 15% CPU capacity while SV uses minimum 70% CPU capacity to preview a single video gopro 30MBPS stream in a tiny window? What else is SV doing during preview that sucks up so much CPU capacity?

–

[Norman Black]

The media player is probably using the hardware decode facility of the video hardware. That is fine for players, but editors most likely need to have the decoder separated.

[Thayalan Paramasawam]

what decoder is best……