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CoreAVC |
CoreAVC is a H.264 video codec created by CoreCodec. CoreAVC is based on the MPEG-4 Part 10 standard and is one of the codecs used in Blu-ray (BD) and in High Definition DVD (HD-DVD). AVC/H.264 is the next-generation standard for video, and CoreAVC is being recognized as one of the worlds most efficient H.264 video decoders. The efficiency of CoreAVC in software is often compared to be faster than other solutions that try to rely on 'hardware' to increase playback performance of H.264 video.
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Trialware ($8) v1.9.5.0  |
8.2 (8.2) 6 votes |
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6 comments (3536473 views) |
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Latest version: 1.9.5.0 (March 17, 2009) Download sites: Download from author site Windows
Sections/Browse similar tools: Codecs Alert me! when this software has been updated. |
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Version history:
CoreAVC H.264 Video Codec - Version 1.9.5.0 (20090316) View entire changelog - Add: NVIDIA CUDA accelerated decoding for interlaced streams (MBAFF and PAFF) - Add: Input stream colorspace override options - Fix: CUDA matrix handling and DPB management improvements - Fix: SEI messages were sometimes discarded - Fix: Seeking problems with Canon HF100 streams - Fix: Use faster asynchronous memory transfers between CPUGPU for CUDA Sponsored tools: Guides and How to's:
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From my experience this is a great codec for those who have a PC that is slightly to moderately underpowered to play full HD videos. I have an HTPC and it could play a 720p video without any problems but with a 1080p the video would constantly pause every 5 seconds although the audio would play fine. I thought it was a configuration issue with my video card or motherboard so I updated drivers, settings, etc to no avail. I remembered seeing this codec on this site, installed it a and my 1080 videos are fine now! Definitely worth the money AMD 2.2Ghz X2 939 2GB Ram nVidia 7600GS 256 WD 640GB 7200rpm
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Does not work properly with Hauppauge-generated 1080i H.264 files. It works fine if you don't try to reposition Windows Media Player's slider, but once you do the video becomes choppy, as if it's skipping frames trying to find IDR frames (which the Hauppauge files do not have). If you then stop and restart at the beginning, then the file plays fine and CPU utilization is low (at most 50% of one 2.9GHz dual core). Forget about any "support", too (and I have the Pro version). I opened a high priority ticket detailing my problem a week ago and it has not been updated. "support" is all style and no substance. Very disappointing.
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This codec is really good. With this codec I can finally play HD videos without any problems. I have the following system: * AMD Athlon XP3000+ (2.16Ghz) * Memory: 512 MB * NVIDIA GeForce FX5200 128 MB It plays everything fluently, but CPU usage varries. While playing 720p x264 with AC3 audio. - CPU usage is at 30% in full screen WMP 11. - CPU usage is at 12% in full screen with WMP 6.4. While playing 1080p x264 with ac3 audio. - CPU usage is at 98/99% in full screen WMP 11. - CPU usage is at 95/97% in full screen with WMP 6.4. For quicktime HD trailers I had to install Quicktime alternative, and rename the file to .hdmov for it to play via directshow.
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I don't know if this decoder is really worth it. I did 2 comparisons on my laptop (it has a Celeron-M 1.3GHz and a 1024x768 LCD), it is not that much faster than FFDshow Tryout Beta 4: * 704x400 resolution: 35% average CPU load for CoreAVC, 39% for FFDshow. * 1024x576 resolution: 47% for CoreAVC, 56% for FFDshow. Both videos have around 1000kbps average bitrate. It may be useful for people who get too close to 80% average load w/ FFDshow though. That way they could avoid skipped frames and stuttering...
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Those who have slow computers like me will notice the largest difference. I have a 933MHz PIII-M laptop (see profile), and using it in combination with Media Player Classic was the only way to play some of the videos on Azureus smoothly.
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CoreAVC is a winner. You know all of those Apple 1080p trailers you've stuttered through on your system? Not any longer. Even my 2.4Ghz P4 can now play HD Resolution h264 without hesitation. As much as I love FFDshow for its Swiss Army Knife of playback codecs, CoreAVC has eclipsed everyone in performance when it comes to h264. You'll get the best results by far if you install it with Haali Media splitter.
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