关于8800GTS的PureVideo问题

jiserry

本人近日入手一块8800GTS的显卡,但是小弟不是很清楚该卡是否支持PureVideo HD,能否像8600GTS一样,对H.264进行高效的硬解码;
还是说8800GTS并没有集成H.264的硬解码器,只有8600系列才有VP2的解码器,如果包含了,是否以后在驱动中会打开该功能?

Edison

G80、G7X、NV43、NV41都具备VP1，VP1能实现WMV、VC-1、MPEG2、H264的高清晰视频硬件解码，不同的编码方式解码能力不一样，H264方面是MC、deblocking等动作的硬件加速。

G84、G86都具备VP2，VP2包含了H264专用的BSP加速引擎，能够把H264解码的所有工作都接管，H264解码的VLD（BSP）、iDCT、MC、deblocikng能都实现GPU的硬件加速。

硬件解码就是硬件加速，硬件加速就是硬件解码，有些人自作聪明硬要区分两者纯属多此一举。

jiserry

那就是说G80没有包含H.264专用的BSP加速引擎咯,是G84、G86专有的是瓦?

Edison

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？

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？

farter

比如高清碟机？:)

Edison

我没有这样的机器亚，如果你能有里面使用的芯片资料就好了

farter

http://forum.doom9.org/showthread.php?t=95939

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

HARDWARE IMPLEMENTED:
---------------------

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.
---

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
---

Tandberg EN5930 SD/EN5990 HD Encoders (Tandberg Television)
Product: Television SD & HD encoders.
http://www.tandbergtv.com/products/products.asp?range=3
---

Tandberg Telecom - video communication (Tandberg Telecom)
Product for videoconferencing, supports H.264 baseline profile.
http://www.tandberg.net/our_story/h264.jsp
---

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)
---

Tut Systems MPEG-4 AVC (Tut Systems, Inc.)
Product: Hardware transcoder box.
http://www.tutsys.com/digitalheadend...iacp/mpeg4avc/
---

Hardware MGW 5100 (Optibase, Inc.)
Product: Hardware box encoder
http://www.optibase.com/Content.aspx?id=38
---

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
---

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
---

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
---

Mayah I [io] 8000 series (MAYAH Communications)
Product: Hardware box. Plan AVC availability in Q3 '05.
http://www.mayah.com/products/io-8000a.htm
---

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
---

TI TMS320DM64x DSP ( Texas Instruments Incorporated)
Chip: SD BP encoder+decoder, MP decoder
http://focus.ti.com/dsp/docs/dspspla...contentId=1573
---

ViBE MPEG-4 AVC (Thomson)
Chip: modular hardware series of encoders
http://www.thomsongrassvalley.com/pr...encoder_mpeg4/
---

Broadcom chips (Broadcom Corp. former Sandvideo)
Chip with H.264 HD / decoding only
http://websearch.broadcom.com/query.html?qt=AVC
---

Sentivision H.264/AVC Decoders (Sentivision, Japan)
Chip/products with H.264 HD / decoding only / only for TI DSP's
http://www.sentivision.com/
---

SD MPEG-2/AVC encoder (Scientific Atlanta now part of Cisco)
Product: Transmission system (for satellite TV)
http://www.saeurope.com/products/customerhome.htm
---

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
---

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
---

BSP 15 (System-on-chip) (Pixelworks Inc - was Equator Technologies, Inc.)
Chips. No info about Equator H.264 on site now.
---

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
---

VP3-PMC / Hardware TwinPEG Pro (Vitec Multimedia)
Chips. TMS320DM642TMDSP & etc
http://www.vitecmm.com/product.php?id=41
---

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
---

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
---

Sigma Designs HD decoder (Sigma Designs, Inc.)
HW HD Decoder based on SMP8630 family
http://www.sigmadesigns.com/public/P...30_series.html
---

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
---

STMicroelectronics H.264 (STMicroelectronics)
HW HD High Profile decoder
http://www.st.com/stonline/stappl/pr...2006/t2052.htm
---

PacketVideo H.264 (PacketVideo Corp.)
HW Base Profile encoder/decoder on ARM/OMAP/DM642
http://www.packetvideo.com/page.asp?prmid=16
---

H.264 Engine for Mobile Devices (ASTRI - Applied Science and Technology Research Institute Company Limited)
http://www.astri.org/en/ic_mtm01_apv.php
---

CEVA Mobile-Media2000 (CEVA, Inc.)
Chip,Base Profile encoder/decoder
http://www.ceva-dsp.com/products/pla...bile-media.php
---

Micronas DeCypher 8100 (Micronas)
Chip,decoder with support for H.264/AVC
http://www.micronas.com/products/by_...ion/index.html

Edison

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。

jiserry

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。

那G80到底用的是VP2还是VP1啊,能确认嘛?

Edison

上面已经说了是VP1。

jiserry

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:

jiserry

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?

wjyj10

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?

是的，比R6XX、G86、G84都要差。

jiserry

我还以为G80也是用的新的VP2呢,这下高清看不成了,不过G86、G84的3D性能和G80比差太多了!

harleylg

一直用CoreAVC软解的飘过……

tobyking928

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?

如果ATI发布的R600不吹牛皮的话，那么在视频方面R600会比G80强一些。

cjwbb

CoreAVC软解效果不错的:lol:

Edison

NVIDIA在决定集成VP之前咨询了大量厂商和客户，最终达成目前的VP，就凭你的一句话要NVIDIA摘掉VP简直是妄想。