CoreAVC 2.5 (for Windows) Released


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CoreCodec CoreAVC 2.5 for Windows is a complete solution for playing high quality HD H.264 videos on your Windows based computer. CoreAVC comes (in part) from the creators of the Matroska MKV Container (.mkv), So you know it's gotta be good! CoreAVC fully supports GPU hardware acceleration with NVIDIA CUDA Technology, and works with other compatible NVIDIA Platforms like ION running on Windows XP, Vista, or 7. If you have a slow computer that is having problems with H.264 playback, you can try using it.

CoreAVC is known in the industry as being the standard for playback of high quality H.264 video. The new CoreAVC Decoder allows you to offload video decoding to any accelerated decoder that works with either NVIDIA CUDA or ATI with Microsoft's DirectX Video Acceleration (DXVA) interface for any Windows XP, Vista, or Windows 7 PC.

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CoreCodec CoreAVC features

  • Supports Windows 7
  • 32/64 bit Support
  • DXVA 1/2 Compatible
  • NVIDIA CUDA GPU support
  • ATI GPU support (DXVA)
  • Multicore ready (16 CPU Cores)
  • 8100x8100 Resolution Support
  • Full Interlaced support
  • Uses Directshow for MKV
  • Haali Media Splitter Included

CoreAVC H.264 Video Codec - Version 2.5.0.0 (20110326)

  • ADD: DXVA1 support (with red tray icon)
  • ADD: DXVA2 support (with red tray icon)
  • ADD: new x64 blit asm code (unified with x86)
  • FIX: SPS memory leaks
  • FIX: Properly support SPS resolution changes (soft/cuda decoding)
  • FIX: Bug in YUV->YUV blit code
  • CHG: Unify x86 and x64 CUDA asm code
  • CHG: Unify x86 and x64 AVC asm code, enabling SSE2/SSE3/SSSE3/SSE4 for x64
  • CHG: Increase max supported resolution (approx 8100x8100)
  • CHG: Refactor directshow frontend code
  • CHG: Modify CUDA locking method
  • CHG: Rearrange/enlarge settings dialog
  • OEM: YASM padding bug for OSX target
  • OEM: Android support added to SDK

Haali Media Splitter (20110303)

  • ADD: AC3 in MP4 support
  • ADD: WebM support
  • ADD: More H264 aspect ratio options
  • FIX: Show error code in GDSMux when muxing is aborted
  • FIX: Accept more AAC media types in the muxer
  • FIX: Use correct timescales when processing MP4 edit lists
  • FIX: Scan the folder for more segments only if the file references external segments
  • FIX: Fixed a lot of issues with the mp4 muxer
  • FIX: Better support for VC1 in MPEG Transport Streams
  • FIX: Aspect ratio processing in certain Matroska files
  • FIX: Bug in uninstaller that prevented it from properly unregistering all filters
  • FIX: Unrecognized video track in some transport streams
  • FIX: Occasional excessive disk I/O when paused

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Notes: CoreAVC is not free. It's a commercial program and you have to buy it to use it. There are no free versions available. If you want to use CoreAVC, you will have to buy it from CoreCodec.

CoreAVC Professional 2.5 (for Windows)

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Recommended Hardware Configurations for proper CoreAVC? Playback

The CoreAVC? H.264 Video decoder for windows directshow has the following 'recommended' hardware configurations below: Noting that the recommendations listed are measured for full screen video playback and a more powerful system will deliver the best playback experience. But because of how efficient CoreAVC is, you may find that what it takes to perform at these levels can be achieved just as well on a slower PC too.

CoreAVC? for Windows

CPU - 800 MHz or faster Intel Pentium class or equivalent AMD processor

RAM - At least 256MB of RAM

OS - Windows 98, 2000, XP, Vista, 7

480p video at 24 frames per second

CPU - 1.4 GHz or faster Intel Pentium 4 or equivalent AMD processor

RAM - At least 256MB of RAM- 64MB or greater video card

OS - Windows 98, 2000, XP, Vista, 7

720p video at 24-30 frames per second

CPU - 2.2 GHz or faster Intel Pentium 4 or equivalent AMD processor

RAM - At least 512MB of RAM

GPU - 128MB or greater video card

OS - Windows 98, 2000, XP, Vista, 7

1080p video at 24-30 frames per second

CPU - 2.8 GHz or faster Intel Pentium 4 or equivalent AMD processor

RAM - At least 1GB of RAM

GPU - 256MB or greater video card

OS - Windows 98, 2000, XP, Vista, 7

GPU Requirements for NVIDIA CUDA:*

NVIDIA GeForce GTX 260/280/290/295, 9800, 9600, 9500, 8800 GT, 8800 GTS 512, 8700, 8600, 8500, 8400, Tesla S1070/C1060, Quadro FX 3700, Quadro FX 3600M, Quadro FX 1700/FX 570/ NVS 320M/FX 1600M/FX 570M/FX 370/NVS 290/NVS 140M/NVS 135M/FX 360M/NVS 130M and higher.

* You will also need drivers 191.07 or higher from NVIDIA

DivX Plus HD was the fastest h.264 decoder and adds mkv support for windows media player.

Plus its free! (install DivX Plus Codec Pack)

I think Divx still wears the performance h.264 performance crown.

So there is very little reason to use corecodec as far i am concerned.

DivX Plus HD was the fastest h.264 decoder and adds mkv support for windows media player.

Plus its free! (install DivX Plus Codec Pack)

I think Divx still wears the performance h.264 performance crown.

So there is very little reason to use corecodec as far i am concerned.

That's why I'm curious about performance, DivX being free (and quite good) makes CoreAVC a hard sale.

I wish someone would make a comparison between this and the lastest DivX plus. There's only really outdated ones around.

H.264 CPU/DXVA codec comparison

UPDATE 31/3/2011: CoreAVC 2.5.1 (CPU & DXVA results added)

http://forum.doom9.org/showthread.php?t=159486

H.264 CPU/DXVA codec comparison

UPDATE 31/3/2011: CoreAVC 2.5.1 (CPU & DXVA results added)

http://forum.doom9.org/showthread.php?t=159486

Interesting, thanks. So wait, it's faster to use the cpu? or am I missing something?

DivX Plus HD was the fastest h.264 decoder and adds mkv support for windows media player.

Plus its free! (install DivX Plus Codec Pack)

I think Divx still wears the performance h.264 performance crown.

So there is very little reason to use corecodec as far i am concerned.

Better be trolling,

- DivX is really slow compared to CoreAVC.

- DivX is buggy compared to CoreAVC.

- Everything adds MKV support for WMP.

- I would avoid WMP and use MPC:HC for empirically higher quality and more performance friendly Haali Renderer as well as more performance friendly subtitles.

maybe i am mistaken, but what's the point of this software?

free video players like PotPlayer already supports hardware accelerated h264 video playback on my Radeon 5670 fine through dxva.

CPU use with dxva on is around 5percent on my AMD Athlon 3600+ dual core (2.0ghz overclocked to 2.4ghz). 720p/1080p x264 (h264). without it... 1080p gets out of sync and 720p plays fine but CPU use is 30-40percent area.

maybe i am mistaken, but what's the point of this software?

free video players like PotPlayer already supports hardware accelerated h264 video playback on my Radeon 5670 fine through dxva.

CPU use with dxva on is around 5percent on my AMD Athlon 3600+ dual core (2.0ghz overclocked to 2.4ghz). 720p/1080p x264 (h264). without it... 1080p gets out of sync and 720p plays fine but CPU use is 30-40percent area.

Not all renderers support DXVA.

If you want a quality presentation, you will use MadVR which doesn't support DXVA.

With CoreAVC, you can use CUDA with MadVR for fast and great quality video.

Not all renderers support DXVA.

If you want a quality presentation, you will use MadVR which doesn't support DXVA.

With CoreAVC, you can use CUDA with MadVR for fast and great quality video.

Well a standard x264 720p (7GB) file seems to be a negligible difference in image quality with a big CPU hit when using MadVR. (since DXVA is disabled)

i.e. it's not worth losing DXVA for the slight (to negligible) image quality increase.

note: i tested it on PotPlayer with madVR enabled and then it's default mode which uses dxva. (and like i say i can notice it did change the image some but it seemed to mostly introduce jaggies in the image where as standard dxva is more smoother.

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