H.264 Acceleration Works!

[OneOfTheseDays]

Just want to say that I can finally watch 1080p H.264 movies on my 3500+. I'm using the latest Nvidia drivers and Nero 7.055 (NOT 7.082) and my CPU usage never hits 100%. Usually around 30-55%.

 

[1Dark1Sharigan1]

Were the files you played h.264 quicktime files? Because when I tried Nero Showtime (latest version) with my 7800GT & Purevideo it performed worse than CoreAVC . . .

 

[SynthDude2001]

What video card do you have? I assume this wouldn't apply to me, having a 6800GT AGP. If I didn't have a dual-core CPU, I'd be screwed for 1080p h.264 playback

Edit: I also had Dug try that version (7.0.5.5) with the latest Nvidia drivers and he said he saw no difference in CPU utilization for h.264....he has a 6600GT, which at least according to the chart on Nvidia's site should accelerate h.264 decode (unlike my card)...

 

[1Dark1Sharigan1]

Originally posted by: SynthDude2001
What video card do you have? I assume this wouldn't apply to me, having a 6800GT AGP. If I didn't have a dual-core CPU, I'd be screwed for 1080p h.264 playback

Edit: I also had Dug try that version (7.0.5.5) with the latest Nvidia drivers and he said he saw no difference in CPU utilization for h.264....he has a 6600GT, which at least according to the chart on Nvidia's site should accelerate h.264 decode (unlike my card)...

Yeah as I posted previously, I saw no effect on CPU load on my 7800GT . . . in fact Purevideo still performs worse than directshow filters such as CoreAVC . . .

 

[SynthDude2001]

Originally posted by: 1Dark1Sharigan1

Originally posted by: SynthDude2001
What video card do you have? I assume this wouldn't apply to me, having a 6800GT AGP. If I didn't have a dual-core CPU, I'd be screwed for 1080p h.264 playback

Edit: I also had Dug try that version (7.0.5.5) with the latest Nvidia drivers and he said he saw no difference in CPU utilization for h.264....he has a 6600GT, which at least according to the chart on Nvidia's site should accelerate h.264 decode (unlike my card)...

Yeah as I posted previously, I saw no effect on CPU load on my 7800GT . . . in fact Purevideo still performs worse than directshow filters such as CoreAVC . . .

Yeah...I had him try CoreAVC and he was able to play my 720p encodes flawlessly, <80% CPU usage (he has an Athlon XP, so that's really good for his machine )

 

[OneOfTheseDays]

The video card is a 7600GT. I thought Nvidia enabled H.264 acceleration for all 6800/7XXX cards?

BTW, the King Kong trailer at 1080P looks nothing short of amazing.......Nice to finally watch it without dropping a single frame.

 

[MADMAX23]

Hi, well...I don't know why you are having issues when playing (decoding) HD videos using nvidia Purevideo....it works awesome for me, CPU usage is always below 50% (40% average) if I am watching a 1080p movie...with 720p material, CPU usage is always below 40% (33% average).
I have the latest Purevideo decoder installed, and I play videos with either WMP10, PowerDVD or Quicktime 7 Pro, never used Nero's player....
My card is 7900GT by the way...

 

[Wag]

CoreAVC is pretty impressive.

 

[Auric]

I tried CoreAVC recently and the audio quality was awful compared to QT when playing Ice Age 2 trailer so I wondered if shortcuts were being used to increase performance. Performance is fine with HT CPU and QT Alt/MPC so I did not bother investigating but if anyone is interested perhaps try a video-only file for comparison... demux a trailer.

 

[SynthDude2001]

Originally posted by: Auric
I tried CoreAVC recently and the audio quality was awful compared to QT when playing Ice Age 2 trailer so I wondered if shortcuts were being used to increase performance. Performance is fine with HT CPU and QT Alt/MPC so I did not bother investigating but if anyone is interested perhaps try a video-only file for comparison... demux a trailer.

I thought CoreAVC was only a video decoder...you'd still have to use something else for audio...

 

[Wag]

Originally posted by: SynthDude2001

Originally posted by: Auric
I tried CoreAVC recently and the audio quality was awful compared to QT when playing Ice Age 2 trailer so I wondered if shortcuts were being used to increase performance. Performance is fine with HT CPU and QT Alt/MPC so I did not bother investigating but if anyone is interested perhaps try a video-only file for comparison... demux a trailer.

I thought CoreAVC was only a video decoder...you'd still have to use something else for audio...

Exactly.

Install K-Lite Codec pack. That will give you Haali Media Splitter, CoreAVC and FFDShow Audio decoder. Plays back 1080p QT trailers w/realtime AAC-AC3 encoding smoothly. Sweet.

 

[Zagor]

Or you can use CoreAAC for audio.

 

[Auric]

I meant the CoreAVC and AAC plugins for TCPMP.

With Media Player Classic and QuickTime Alternative, QT AVC/AAC files are naturally decoded perfectly (although the first couple versions of QT for Windows suffered poor performance and their player remains craptastic). Other like files can be decoded via fddshow with libavcodec and either libfaad2 or realaac but libfaad2 is already integrated into MPC so I don't use fddshow's audio except for the odd vorbis. Those decoders can even be used for QT files so long as the extension is changed from MOV to AVI or MP4 (assuming default associations), with only the Apple Sound Media Handler doing audio splitter duty. The good thing about integrated solutions like MPC and fddshow is that full control is easily maintained over which which codec is used for what, unlike evil codec packs.

 

[Goi]

What's CoreAVC? A H.264 decoder?

 

[SynthDude2001]

Originally posted by: Goi
What's CoreAVC? A H.264 decoder?

Yeah, it's a software decoder (beta for now, until they release the full version at retail which will supposedly support SMP and GPU acceleration and other stuff). Very very fast, lower CPU usage than any other decoder on my system, and it even allows my friends with Athlon XP's to play my 720p/24fps h.264 encodes with no dropped frames...

I can dig up a link later, but I've gotta run now

 

[DAPUNISHER]

There is some confusion here i.e. the PureVideo MPEG2 decoder has nothing to do with H.264 acceleration as 1 post is suggesting it does. MP10 will not provide hardware acceleration, and " if I am watching a 1080p movie...with 720p material" What?

For hardware acceleration you need a supported card, drivers, and player. E.G. The card, drivers, and version of Showtime2 that comes in Nero UE7 ver.7.0.55 the OP is using. The companies supporting nVs' H.264 acceleration through the "special API" at this time are-

CyberLink PowerDVD? with H.264 (AVC) and AAC Pack
InterVideo® WinDVD®
Nero® ShowTime

As pointed out, nv40/45 are not supported, despite the continued references everywhere to all 6/7series GPUs being supported :disgust: :thumbsdown: for nVs' continued attempts to brush the borked PVP on that GPU under the rug by not making mention of its exclusion in any press release reprinted around the net.