关于8800GTS的PureVideo问题 - POPPUR爱换

原帖由 Z魔王 于 2007-4-24 11:30 发表
“硬件解码就是硬件加速，硬件加速就是硬件解码”？
不能理解。那么要怎么区分显卡的解码和专业芯片的解码？

LIST of MPEG-4 AVC/H.264 VIDEO CODECS
(Last updated 23 December 2006 - 65 items now!)

HARDWARE IMPLEMENTED:
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Sony PlayStation Portable (Sony Computer Entertainment Inc.)
Product: Support H.264/MPEG-4 AVC Main Profile Level3 decoding.
http://www.us.playstation.com/PSP/System
Try also "Sony Image Converter 2 Plus" with AVC support.
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VSX 300 Videoconferencing Terminal with H.264 support (Polycom Inc)
Product: Biggest HW videoconferencing company, prepare many solutions with 264 support
http://www.polycom.com/products_serv...5-6197,00.html
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Tandberg EN5930 SD/EN5990 HD Encoders (Tandberg Television)
Product: Television SD & HD encoders.
http://www.tandbergtv.com/products/products.asp?range=3
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Tandberg Telecom - video communication (Tandberg Telecom)
Product for videoconferencing, supports H.264 baseline profile.
http://www.tandberg.net/our_story/h264.jsp
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4Caster MPEG-4 / H.264 Encoder (Envivio, Inc.)
Product: Hardware box encoder
http://www.envivio.com/solutions/ipt...television.php
http://www.envivio.com/products/bshd...0_software.php (software, no download)
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Tut Systems MPEG-4 AVC (Tut Systems, Inc.)
Product: Hardware transcoder box.
http://www.tutsys.com/digitalheadend...iacp/mpeg4avc/
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Hardware MGW 5100 (Optibase, Inc.)
Product: Hardware box encoder
http://www.optibase.com/Content.aspx?id=38
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Harmonic DiviComR MV 100 Encoder (Harmonic Inc. )
Product: Several hardware SD and HD Broadcast AVC encoders
http://www.harmonicinc.com/view_csd_...m?classID=1010
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E42 - H264 DVB over IP Broadcast Encoder (StreamTel Corporation)
Product: Hardware box encoder. Broadcast-Grade real time H264 DVB IP streaming encoder
http://www.streamtel.com/streamtel/p...st_Encoder.htm
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Darim MV401EXP-H264 Encoder and MV410EXP Decoder (Darim Vision Co., Ltd.)
Product: Hardware box Encoding/Streaming systems
http://www.darimmedia.com/products/mv401exp-h264.php
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Mayah I [io] 8000 series (MAYAH Communications)
Product: Hardware box. Plan AVC availability in Q3 '05.
http://www.mayah.com/products/io-8000a.htm
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Thales ARGOS MPEG-4 Encoder (Thales Broadcast & Multimedia, Inc.)
Product: Hardware box. Plan AVC from July 05.
http://www-db.thomcastcom.ext.coltfr..._ID=1&P_ID=221
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TI TMS320DM64x DSP ( Texas Instruments Incorporated)
Chip: SD BP encoder+decoder, MP decoder
http://focus.ti.com/dsp/docs/dspspla...contentId=1573
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ViBE MPEG-4 AVC (Thomson)
Chip: modular hardware series of encoders
http://www.thomsongrassvalley.com/pr...encoder_mpeg4/
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Broadcom chips (Broadcom Corp. former Sandvideo)
Chip with H.264 HD / decoding only
http://websearch.broadcom.com/query.html?qt=AVC
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Sentivision H.264/AVC Decoders (Sentivision, Japan)
Chip/products with H.264 HD / decoding only / only for TI DSP's
http://www.sentivision.com/
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SD MPEG-2/AVC encoder (Scientific Atlanta now part of Cisco)
Product: Transmission system (for satellite TV)
http://www.saeurope.com/products/customerhome.htm
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LSI H.264 VLE4000 (LSI Logic Corp. former: VideoLocus)
Chips with 264 support
http://www.lsi.com/consumer_home/pro...der/index.html
Domino[X] transcoding technology:
http://www.lsi.com/insight_center/te...dia/index.html
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Modulus Video SDTV, HDTV Encoder (Modulus Video, Inc.)
Chips. Declarations only now. License H.264 from LSI Logic.
http://modulusvideo.com/main.php?Page=12
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BSP 15 (System-on-chip) (Pixelworks Inc - was Equator Technologies, Inc.)
Chips. No info about Equator H.264 on site now.
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Surveillance Real Time H.264 Encoders (DSP Research, Inc.)
Several chips implementation.
http://www.dspr.com/www/products/overview_video.htm
http://www.dspr.com/www/support/down...o_download.htm
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VP3-PMC / Hardware TwinPEG Pro (Vitec Multimedia)
Chips. TMS320DM642TMDSP & etc
http://www.vitecmm.com/product.php?id=41
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WWComs H.264 Codecs (W&W Communications Inc.)
Several chips implementation (TI DM64x, C64xx, Freescale DSPs).
http://www.wwcoms.com/products/h264_codec.htm
http://www.wwcoms.com/products/codec/bc264.htm
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CX2418x H.264 Video Decoder IC (Conexant Systems, Inc.)
HW Decoder with Main & High Profile (on CX24182)
http://www.conexant.com/products/entry.jsp?id=109
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Sigma Designs HD decoder (Sigma Designs, Inc.)
HW HD Decoder based on SMP8630 family
http://www.sigmadesigns.com/public/P...30_series.html
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Cradle Technologies H.264 (Cradle Technologies, Inc.)
HW Main profile Encoder based on CT3600 MDSP family
http://www.cradle.com/products/asw_ct3600_h264.shtml
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STMicroelectronics H.264 (STMicroelectronics)
HW HD High Profile decoder
http://www.st.com/stonline/stappl/pr...2006/t2052.htm
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PacketVideo H.264 (PacketVideo Corp.)
HW Base Profile encoder/decoder on ARM/OMAP/DM642
http://www.packetvideo.com/page.asp?prmid=16
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H.264 Engine for Mobile Devices (ASTRI - Applied Science and Technology Research Institute Company Limited)
http://www.astri.org/en/ic_mtm01_apv.php
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CEVA Mobile-Media2000 (CEVA, Inc.)
Chip,Base Profile encoder/decoder
http://www.ceva-dsp.com/products/pla...bile-media.php
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Micronas DeCypher 8100 (Micronas)
Chip,decoder with support for H.264/AVC
http://www.micronas.com/products/by_...ion/index.html

原帖由 Edison 于 2007-4-24 12:51 发表
刚刚问了NVIDIA的人，VP2+BSP能支持目前H264所有的模式、级别，包括10-bit，至于更高色彩精度的节目目前还没有。

原帖由 jiserry 于 2007-4-24 13:44 发表
不过这样的话,那岂不是G80在搞清视频播放的方面要比R600差很多?

原帖由 jiserry 于 2007-4-24 13:40 发表
不会吧,nv这么恶心啊,同一代的GPU,竟然里面的VP不一样,气死我了,怪不得我放昨天放1080p的HD时
CPU占用率在70以上!!!这下亏大了!!!:funk: :funk: :funk:

原帖由 xtal 于 2007-4-25 09:59 发表
随便什么视频格式最后的视频加速都是通用的

原帖由 xtal 于 2007-4-25 09:40 发表

用的起G80的人CPU可以轻松软件解码。
G80有NVIO
在2D质量上面对NV现有其他型号的显卡和ATI全系列都有强大的优势。

原帖由 xtal 于 2007-4-25 13:40 发表

CPU太弱了。要软件解码流畅，CPU占用率要低于80％

原帖由 jiserry 于 2007-4-26 14:11 发表

还弱啊,我觉得已经够强的了,只怪这个片子编码率太高!

原帖由 Edison 于 2007-4-24 11:50 发表

专业芯片？

NVIDIA没有给出VP2的最高decode能力细节，不过你可以举一个专业h264 decoder的例子来看看？

原帖由 jiserry 于 2007-4-24 00:40 发表
不会吧,nv这么恶心啊,同一代的GPU,竟然里面的VP不一样,气死我了,怪不得我放昨天放1080p的HD时
CPU占用率在70以上!!!这下亏大了!!!:funk: :funk: :funk:

原帖由 eights 于 2007-4-27 08:17 发表

我是专作视频编码芯片设计的，从我的角度来看，不太赞同你的说法，视频硬解码电路只需要输入压缩stream，就可以解压出相应的图像数据，中间不需要CPU干预，而且这种芯片通常带一个外部ram控制电路；而硬加速 ...