Intel ® Media Codecs for Intel® System Controller Hub

Production Version 1.8.5.19

Release Notes

5/23/2008
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Revision History Date | Revision | Description
5/23/2008 | Production Release | Production release of the Codecs
3/28/2008 | Beta Release | Beta 2 release of the Codecs
3/4/2008 | Beta Release | Beta release of the Codecs
2/8/2008 | Alpha Release | Alpha release of the Codecs
Overview Intel® Media Codecs plug-ins support the Menlow platform under Windows Vista. These plug-ins have standard Microsoft DirectShow* and/or Microsoft Media Foundation* interfaces and may be used in most programs relying on DirectShow or/and Media Foundation environments like Windows Media Player*, Graph Edit* (graphedt.exe), etc. ODM/OEMs should separately obtain any required licenses for supported format. Feature List
Feature | File Name | Description
MPEG-2 Transport Stream de-multiplexer (splitter) and DirectShow filter | imc_mp2_spl_ds.dll | Supports MPEG-2 Transport Stream (TS) format Supports MPEG-2 video, MPEG-4 video, H.264 video Supports LPCM, AC-3*, AAC* and MPEG-1 & -2 Layers I, II, III audio Supports the repositioning inside media stream Supports High Definition and Standard Definition video
MP4 de-multiplexer (splitter), DirectShow filter | imc_mp4_spl_ds.dll | Supports MP4 stream format Supports MPEG-4 part 2 video and H.264 (MPEG-4 part 10) video Supports LPCM, AAC* and MPEG-1 & -2 Layers I, II, III audio Supports the repositioning inside media stream Supports High Definition and Standard Definition video
MPEG-2 video decoder with DXVA2 acceleration, DirectShow filter | imc_mp2_dec_ds.dll | Supports MPEG-1 and MPEG-2 video Supports hardware decoding of MPEG-2 video via DXVA2 interface with MPEG2_VLD entry point Supports software decoding of MPEG-1 Standard Definition video Supports High Definition and Standard Definition video through DXVA2 acceleration
MPEG-4 video decoder with DXVA2 acceleration, DirectShow filter | imc_mp4_dec_ds.dll | Supports MPEG-4 part 2 video Supports hardware decoding via DXVA2 interface with MPEG4_VLD entry point Supports Standard Definition video Doesn’t support software decoding
H.264 video decoder with DXVA2 acceleration, DirectShow filter | imc_h264_dec_ds.dll | Supports H.264 video Supports hardware decoding via DXVA2 interface with H264_VLD entry point Supports High Definition and Standard Definition video Doesn’t support software decoding
VC-1 video decoder with DXVA2 acceleration, MediaFoundation plugin | imc_vc1_dec_mf.dll | Supports VC-1 video from Microsoft ASF splitter Supports hardware decoding via DXVA2 interface with VC1_VLD entry point Doesn’t support software decoding
AC3 audio decoder, DirectShow filter | imc_ac3_dec_ds.dll | Supports up to 5.1 channels (output is down-mixed to 2 channels) Conforms to all DVD* AC3* requirements
AAC audio decoder, DirectShow filter | imc_aac_dec_ds.dll | Supports up to 7.1 channels (output is down-mixed to 2 channels) Supports LTP, LC, HE profiles
Install and Uninstall Instructions The codec plug-ins for Windows Vista can be installed and uninstalled by using the setup.exe Known Issues
Sighting Number | Title
13757, 13560 | Graphic driver may crash (with recovery) on random streams.
11910 | Artifacts are seen if Deinterlacing is enabled.
12238 | MPEG-2 and H.264 performance issue: Streams with high bit-rate may cause jerky playback on startup on some fragments.
13828, 13807 | WMP may show corrupted picture on first seconds of some clips (H.264/MPEG-4)
13542, 13834, 14193 | Audio playback may be jerky a few first seconds (on stream start-up),
14212, 14189 | WMP sometimes may fail to open specific clips (need to reopen)
13540 | WMP may freeze on reposition exactly to the end of specific streams (need to reposition again),
14108 | Blinking line in the bottom of the picture on some VC-1 clips
13545 | WMP slider is absent on first playback of specific clip
14226 | WMP use Microsoft VC-1 decoder on second iteration in repeat mode on specific VC-1 clip