26-11-2009, 20:05 (Última modificación: 26-11-2009, 20:26 por LuciferX.)
WoodsieLord escribió:Les doy otra buena noticia, bastante relacionada con el POST....
Ya salió la beta del plugin de FLASH (adobe) v10.1 que tiene soporte de CUDA/STREAM.
Para los que no sepan, ésto significa que ya es posible ver dichos videos con la ayuda de la placa de video (VGA) sin usar procesador (CPU). CUDA es el nombre comercial de dicha tecnología aplicada por las placas NVIDIA, mientras que STREAM es el nombre comercial de las placas ATI.
Toda placa reciente (Geforce: [ 8400 a 8600, todas las 9000 y todas las GT], ATI: [(LuciferX corregime si me equivoco) desde la serie HD4000 en adelante]) puede hacer uso de ésta tecnología para decodificar streams de perfiles h264/x264 standard.
Hace rato que se podía hacer uso de ésta tecnología para ver videos con el Windows Media player Classic o similar (al que le interese puede buscar el post de LuciferX donde habilita dicha opcion en su ATI), la novedad está en que ahora es posible alivianar los videos embebidos en flash, como Youtube y todos los similares..
ACLARACIÓN: Tengan en cuenta que es un BETA. No es OPTIMA la decodificacion, y sigue siendo mejor reproducir los videos sin FLASH (bajando el .flv sirve) que viendolo en un navegador.
Por los dos lados: Solo valido en su ultima version de driver (no lo intenten con drivers viejos)
Por el lado de nVidia quizas lo unico que deberia aclarar es que las primeras 8800GTS no tienen soporte para cuda (Wut corregime si no sigue siendo cierto).
Por el lado de ATI:
HD2xxx (lineas bajas/medias) UVD/UVD+ (por eso criticaron a la HD2900XT),
HD3xxx UVD/UVD+
HD4xxx UVD 2 (UVD 2.2 en lineas bajas nuevas, ejemplo 4700 al 4300)
HD5xxx UVD 2.2
En estos ejemplos se incluyen las mobility y las onboard
Explicaciones:
Para el que le interese:
UVD/UVD+
The UVD is based on an ATI Xilleon video processor, incorporated into the same die of the GPU and part of the ATI Avivo HD for hardware decoding videos, along with the Advanced Video Processor (AVP). The UVD, as stated by AMD, handles decoding of H.264/AVC, and VC-1 video codecs almost entirely in hardware. The decoder meets the performance and profile requirements of Blu-ray and HD DVD, decoding H.264 bitstreams up to a bitrate of 40 Mbit/s. It has context-adaptive binary arithmetic coding (CABAC) support and dual-stream decoding support, which would make picture-in-picture possible.
Unlike video acceleration blocks in previous generation GPUs, which demanded considerable host-CPU involvement, UVD offloads almost the entire video-decoder process for MPEG-2, VC-1, and H.264. For example, neither ATI Radeon R520 series' ATI Avivo nor NVidia Geforce 7 series' PureVideo assist front-end bitstream/entropy decompression in VC-1 and H.264 - the host CPU performs this work.[3] In addition to handling VLC/CAVLC/CABAC, frequency transform, pixel prediction and inloop deblocking, UVD also contains an advanced video post-processing block. Post-processing includes denoising, de-interlacing, and scaling/resizing. AMD has also stated that the UVD component being incorporated into the GPU core only occupies 4.7 mm² in area on 65 nm fabrication process node.
A variation on UVD, called UVD+, was introduced with the Radeon HD 3000 series. UVD+ support HDCP for higher resolution video streams. [4] But UVD+ was also being marketed as simply UVD.
UVD 2
The UVD saw a refresh with the release of the Radeon HD 4000 series products. The UVD 2 features full bitstream decoding of H.264/MPEG-4 AVC and VC-1 video streams, and in addition it also supports dual video stream decoding and Picture-in-Picture mode. This makes UVD2 full BD-Live compliant.
UVD 2.2
The UVD 2.2 features a re-designed local memory interface and enhances the compatibility with MPEG2/H.264/VC-1 videos. However, it was marketed under the same alias as "UVD 2" as the "special core-logic, available in RV770 and RV730 series of GPUs, for hardware decoding of MPEG2, H.264 and VC-1 video with dual-stream decoding". The nature of UVD 2.2 being an incremental update to the UVD 2 can be accounted for this move.
... Fucking my heart, never see you again
I will remember love was illusion ...
