http://compnetworking.about.com/cs/wireless80211/
Post# of 17650
http://compnetworking.about.com/cs/wireless80...andard.htm
http://compnetworking.about.com/cs/wireless80...dard_2.htm
http://compnetworking.about.com/gi/o.htm?zi=1...elines.htm
Ethernet
http://compnetworking.about.com/cs/ethernet1/...hernet.htm
We may be in for an HTML5 vs. Flash-style codec competition in 2015.
http://www.tested.com/tech/web/453188-what-yo...265-video/ ....video codec
.....will be H.264 for a bit, next gen. comptition in the pipes
http://en.wikipedia.org/wiki/G.729.1 .....audio codec
http://en.wikipedia.org/wiki/Template:Compression_software .....Compression software
http://en.wikipedia.org/wiki/Template:Compression_methods .....Compression methods
High Efficiency Video Coding .....oh yeah.....doesn't change the fact that H.264 will be dominant for a while yet.
On January 25, 2013 , the ITU announced that HEVC had received first stage approval (consent) in the ITU-T Alternative Approval Process (AAP).[21][22][23] The JCT-VC will continue to work on extensions for HEVC such as support for 12-bit video and 4:2:2/4:4:4 chroma subsampling.[21][22] On the same day MPEG announced that HEVC had been promoted to Final Draft International Standard (FDIS) status in the MPEG standardization process.[24][25]
On April 13, 2013, HEVC/H.265 was approved as an ITU-T standard .[26][27][28] The standard was pre-published on the ITU-T website on April 18, 2013.
On June 7, 2013, the HEVC/H.265 standard was formally published on the ITU-T website as a free download .[2] ..............and then what happened??
Milestones in standardization[edit]
February 2012: Committee Draft (complete draft of standard )[15]
July 2012: Draft International Standard [20]
January 25, 2013: Final Draft International Standard and ITU-T Consent [21][22][24][29]
April 13, 2013: HEVC/H.265 approved as an ITU-T standard[26]
June 7, 2013: Formal publication on the ITU-T website[2]
Implementations and related products [edit]
2012[edit]
On February 29, 2012, at the 2012 Mobile World Congress, Qualcomm demonstrated a HEVC decoder running on an Android tablet, with a Qualcomm Snapdragon S4 dual-core processor running at 1.5 GHz, showing H.264/MPEG-4 AVC and HEVC versions of the same video content playing side by side.[30] In this demonstration HEVC reportedly showed almost a 50% bit rate reduction compared with H.264/MPEG-4 AVC.[30]
On August 22, 2012, Ericsson announced that the world's first HEVC encoder, the Ericsson SVP 5500, would be shown at the upcoming International Broadcasting Convention (IBC) 2012 trade show.[31][32] The Ericsson SVP 5500 HEVC encoder is designed for real-time encoding of video for delivery to mobile devices.[31][32] On the same day, it was announced that researchers are planning to extend MPEG-DASH to support HEVC by April 2013.[33]
On August 31, 2012, Allegro DVT announced two HEVC broadcast encoders called the AL1200 HD-SDI encoder and the AL2200 IP Transcoder.[34] Allegro DVT says that hardware HEVC decoders shouldn't be expected before 2014 but that HEVC can be used earlier for applications that use software based decoding.[34] At the IBC 2012 trade show Allegro DVT demonstrated a HEVC delivery system based on the AL2200 IP Transcoder with a live IP video stream.[34]
On September 2, 2012, Vanguard Video, formerly Vanguard Software Solutions (VSS),[35] announced a real-time HEVC software encoder running at 1080p30 (1920x1080, 30fps) on a single Intel Xeon processor. This encoder was demonstrated at IBC 2012.[36][37]
On September 6, 2012, Rovi Corporation announced that a MainConcept SDK for HEVC would be released in early 2013 shortly after HEVC is officially ratified.[38] The HEVC MainConcept SDK includes a decoder, encoder, and transport multiplexer for Microsoft Windows, Mac OS, Linux, iOS, and Android.[38] The HEVC MainConcept SDK encoder was demonstrated at the IBC 2012 trade show.[38][39]
On September 7, 2012, Envivio Inc. first demonstrated its next-generation HEVC codec capabilities at IBC in Amsterdam, showing a technology demo of video quality comparable to AVC (H.264) at half the bit-rate. Envivio Muse™ software-based encoders are designed to support HEVC via software upgrade in the future.[40]
On September 9, 2012, ATEME demonstrated at the IBC 2012 trade show a HEVC encoder that encoded video with a resolution of 3840×2160p at 60 fps with an average bit rate of 15 Mbit/s.[41][42] ATEME is planning to release their HEVC encoder in October 2013.[41][42][43]
2013[edit]
On January 3, 2013, Allegro DVT announced that they would show HEVC video hardware decoder IP at the 2013 International CES.[44] The HEVC decoder IP can be used on FPGA and SoC with support for up to 4K resolution.[44] The HEVC decoder IP was reportedly compliant with the HM 9.1 reference software and was expected to be made compliant with the final standard after it is released.[44]
On January 7, 2013, ViXS Systems announced that they would show the first hardware SoC capable of transcoding video to the Main 10 profile of HEVC at the 2013 International CES.[45][46] On the same day Rovi Corporation announced that after the HEVC standard is released that they plan to start adding support for HEVC to their MainConcept SDK and to their DivX products.[47][48]
On January 7, 2013, Samsung Electronics announced at the 2013 International CES that their F8500 series of plasma TVs would support HEVC video decoding.[49]
On January 8, 2013, Broadcom announced the BCM7445 which is an Ultra HD decoding chip capable of decoding HEVC at up to 4096×2160p at 60 fps.[50][51][52][53] The BCM7445 is a 28 nm ARM architecture chip capable of 21,000 Dhrystone MIPS with volume production estimated for the middle of 2014.[50][51][52][53]
On January 8, 2013, Vanguard Video announced the availability of V.265, a professional pure-software HEVC encoder capable of real-time performance.[54]
On January 25, 2013, NGCodec announced that it is building a HEVC/H.265 hardware encoder and offers free 8-bit and 10-bit 4K compliance test clips.[55][56]
On January 30, 2013, Elemental Technologies, Inc. announced its implementation of HEVC/H.265 encoding.[57] Elemental announced that its video processing products would offer support for the HEVC/H.265 standard via a software upgrade.[57] Elemental first demonstrated H.265 encoding at IBC in September, 2012 in a side-by-side demonstration with AVC/H.264. Elemental said it would demonstrate concurrent encoding of MPEG-2, H.264/MPEG-4 AVC, and HEVC/H.265 on a single system at the NAB Show in April 2013.[57]
On February 4, 2013, NTT DoCoMo announced that starting in March it would begin licensing its implementation of HEVC decoding software.[58][59] The decoding software can allow playback of 4K UHDTV at 60 fps on personal computers and 1080p on smartphones and was planned to demonstrated at the 2013 Mobile World Congress.[58][59] In a JCT-VC document NTT DoCoMo showed that their HEVC software decoder could decode 3840x2160 at 60 fps using 3 decoding threads on a 2.7 GHz quad core Ivy Bridge CPU.[60]
On February 11, 2013, researchers from MIT demonstrated the world's first published HEVC ASIC decoder at the International Solid-State Circuits Conference (ISSCC) 2013.[61] Their chip was capable of decoding a 3840×2160p at 30 fps video stream in real time consuming under 0.1W of power.[62]
On March 14, 2013, Ittiam Systems announced the immediate availability of its real-time HD HEVC encoder and decoder solutions which was demonstrated at NAB 2013.[63] The x86 based encoder running on a multi-core Intel Xeon server class processor is targeted at the broadcast encoding market.[63] The decoder is an optimized multi-core ARM (Cortex A7/A9/A15 cores with Neon acceleration) implementation designed for smartphones, set-top boxes, tablets, and Smart TVs which has been demonstrated on the next generation Qualcomm Snapdragon S800.[64] The decoder was publicly showcased at CES 2013.[63] A demonstration of an OpenCL based GPU accelerated HEVC decoder was shown at MWC 2013.[63][65]
On March 14, 2013, Samsung Electronics announced that the Samsung Galaxy S4 would support HEVC video decoding.[66][67][68]
On March 30, 2013, Xunlei released a new version of its video-on-demand software Kankan that supports HEVC/H.265 through a codec developed by and exclusively licensed from Peking University, making it the first consumer product on the Chinese market to support HEVC/H.265.[69]
On March 31, 2013, PPStream released version 3.1.0 of its software that supports HEVC/H.265.[70]
On April 3, 2013, ATEME announced the availability of the first open source implementation of a HEVC software player based on the OpenHEVC decoder and GPAC video player which are both licensed under LGPL.[71][72] The OpenHEVC decoder supports the Main profile of HEVC and can decode 1080p at 30 fps video using a single core CPU.[71][72] A live transcoder that supports HEVC and used in combination with the GPAC video player was shown at the ATEME booth at the NAB Show in April 2013.[71][72]
On April 3, 2013, Thomson Video Networks announced that its ViBE™ VS7000 multi-screen video encoding/transcoding system now provides support for the HEVC compression standard for live and offline applications.[73]
On April 6, 2013, Harmonic announced the addition of HEVC and Ultra HD support to their ProMedia suite of products.[74][75] These features will be demonstrated at the NAB Show in April 2013.[74][75]
On April 8, 2013 at NAB in Las Vegas, Vanguard Video demonstrated a hardware implementation of their HEVC technology running on a Xilinx Kintex-7 FPGA. The Xilinx FPGA provides acceleration for portions of the HEVC encoder, integrating with Vanguard's software implementation of the HEVC standard.[76]
On April 8, 2013 at NAB in Las Vegas, Digital Rapids demonstrated its Transcode Manager 2.0 integrated with Vanguard Video’s HEVC technology.[77]
On April 8, 2013 at NAB in Las Vegas, Vanguard Video showed HEVC real-time streaming to mobile devices. The demonstration included real-time encoding of 720p30 on an x86 based server, wirelessly streaming to a Nexus 10 where it was decoded in real-time.[78]
On April 8, 2013 , Tata Elxsi announced the availability of a licensable HEVC Ultra HD (4K) decoder for smartphones, tablets, set top boxes, gaming consoles and other CE devices .[79]
On April 19, 2013, SES announced the first Ultra HD transmission using the HEVC standard.[80][81][82] The transmission had a resolution of 3840×2160 and a bit rate of 20 Mbit/s.[80][81][82] SES used Harmonic's ProMedia Xpress HEVC encoder and Broadcom's BCM7445 HEVC decoder.[80][81][82]
On May 2, 2013, TVBEurope released an article on the prospect of HEVC for contribution applications but said that it will not happen until additional HEVC profiles are made that can support more than 4:2:0 chroma subsampling.[83]
On May 9, 2013, NHK and Mitsubishi Electric announced that they had jointly developed the first HEVC encoder for 8K Ultra HD TV, which is also called Super Hi-Vision (SHV).[84][85][86][87] The HEVC encoder supports the Main 10 profile at Level 6.1 allowing it to encode 10-bit video with a resolution of 7680×4320 at 60 fps.[84][85][86][87] The HEVC encoder has 17 3G-SDI inputs and uses 17 boards for parallel processing with each board encoding a row of 7680×256 pixels to allow for real time video encoding.[84][85][86][87] The HEVC encoder is compliant with draft 4 of the HEVC standard and has a maximum bit rate of 340 Mbit/s.[88] The HEVC encoder was shown at the NHK Science & Technology Research Laboratories Open House 2013 that took place from May 30 to June 2.[84][86][89] At the NHK Open House 2013 the HEVC encoder used a bit rate of 85 Mbit/s which gives a compression ratio of 350:1.[90][91]
On May 15, 2013, DivX released a draft version of DivX HEVC video profiles that are based on the Main profile and Main tier of HEVC with additional restrictions specific to the DivX HEVC video profiles.[92][93] The draft version of DivX HEVC 4K, 1080p, and 720p video profiles currently define only the video and DivX is planning to define other elements of the profiles in the future.[92][93] The DivX HEVC 4K video profile allows for a maximum bit rate of HEVC Level 5.1 (40 Mbit/s) but the maximum number of samples per second is limited to HEVC Level 5 (4096×2160 at 30 fps).[94]
On May 31, 2013, Orange announced the first public HEVC demonstration of a real time end-to-end delivery chain .[95][96] The HEVC demonstration included a high definition broadcast of the 2013 French Open from June 1 to June 9 that uses both IPTV and DVB-T2.[ 95][96] The HEVC demonstration may be seen in the technical area of Orange and at a showroom in Rennes.[95][96]
On June 4, 2013, Rovi Corporation released the MainConcept HEVC SDK 1.0 .[97] SDK 1.0 supports Smart Adaptive Bitrate Encoding Technology (SABET) which allows for the simultaneous encoding of up to 10 video output streams with reduced computing cost .[97] SDK 1.0 is available for Windows and SDK 1.0.1, which will be released in July 2013 , will add support for Linux and Mac OS X.[97][98] SDK 1.0 supports the Main profile while SDK 2.0, which will be released in Q4 2013, will add support for the Main 10 profile.[98][99]
On June 10, 2013 , Vanguard Video announced that support for the Main 10 profile was added to their V.265 professional HEVC encoder .[100] V.265 is the first real time HEVC software encoder to support the Main 10 profile. [100]
On June 20, 2013 , Youku Tudou announced that they have partnered with Qualcomm on adding HEVC support to their website and that most Qualcomm Snapdragon devices will be able to support HEVC video .[101][102]
On June 20, 2013 , Imagination Technologies announced their PowerVR Series5 HEVC decoder.[103] The PowerVR D5500 decoder core supports 10-bits per color video decoding.[103]
On July 1, 2013, DivX released a HEVC decoder plugin for their DivX Player.[104][105]
On July 1, 2013, Argon Design announced its development of a validation test suite for testing the conformance of HEVC decoders.[106] The company said it has created a compiler for the HEVC specification that directly understands the pseudo-code and equations contained in the standard and that it has created a mathematical model of the entire HEVC decoding process.[106] The compiler and mathematical model were used to generate a bitstream test set that is claimed to provide comprehensive coverage for decoder testing.[106] The suite includes a coverage tool that is claimed to be able to detail exactly which sections of the HEVC specification are covered by any set of bitstreams.[106]
Coding efficiency[edit]
The design of most video coding standards is primarily aimed at having the highest coding efficiency.[107] Coding efficiency is the ability to encode video at the lowest possible bit rate while maintaining a certain level of video quality.[107] There are two standard ways to measure the coding efficiency of a video coding standard, which are to use an objective metric, such as peak signal-to-noise ratio (PSNR), or to use subjective assessment of video quality.[107] Subjective assessment of video quality is considered to be the most important way to measure a video coding standard since humans perceive video quality subjectively.[107]
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.........like a hound dog on a trail, this has a scent.......maybe the Cap'n will kick this HEVC/265 vid codec around some.......the recent action would seem to fit...just tol
Main Still Picture
A PSNR based HEVC performance comparison for still image compression was done in April 2013 by Nokia.[136] HEVC has a larger performance improvement for higher resolution images than lower resolution images and a larger performance improvement for lower bit rates than higher bit rates .[136] For lossy compression to get the same PSNR as HEVC took on average 1.4× more bits with JPEG 2000, 1.6× more bits with JPEG-XR, and 2.3× more bits with JPEG.[136]
.........not a techman, but does this sound like better focus on the main focus while letting background fade
Tiers and levels[edit]
Main article: High Efficiency Video Coding tiers and levels
The HEVC standard defines two tiers, Main and High, and thirteen levels.[1][2] A level is a set of constraints for a bitstream.[1][2] For levels below level 4 only the Main tier is allowed.[1][2] The Main tier is a lower tier than the High tier.[1][2] The tiers were made to deal with applications that differ in terms of their maximum bit rate.[1] The Main tier was designed for most applications while the High tier was designed for very demanding applications.[1] A decoder that conforms to a given tier/level is required to be capable of decoding all bitstreams that are encoded for that tier/level and for all lower tiers/levels.[1][2]
Containers[edit]
MPEG has proposed an amendment to add HEVC support to the MPEG transport stream used by ATSC, Blu-ray Disc, and DVB ; MPEG decided not to update the MPEG program stream used by DVD-Video.[137][138] MPEG has also proposed an amendment to add HEVC support to the ISO base media file format .[137][139] HEVC will also be supported by the MPEG media transport standard that is under development.[137][140] DivX has proposed a method to add HEVC support to Matroska and provides a patched release of the MKVToolNix v6.2.0 binaries on their website.[141][142] A draft document has been submitted to the Internet Engineering Task Force which describes a method to add HEVC support to the Real-time Transport Protocol.[143]
http://en.wikipedia.org/wiki/High_Efficiency_Video_Coding
Qpen Source
A main principle and practice of open-source software development is peer production by bartering and collaboration, with the end-product, source-material, "blueprints", and documentation available at no cost to the public. This model is also used for the development of open-source-appropriate technologies,[5] solar photovoltaic technology [6] and open-source drug discovery.[7][8]
Most economists agree that open-source candidates have an information good [17] (also termed "knowledge good") aspect. In general, this suggests that the original work involves a great deal of time, money, and effort. However, the cost of reproducing the work is very low, so that additional users may be added at zero or near zero cost – this is referred to as the marginal cost of a product. Copyright creates a monopoly so the price charged to consumers can be significantly higher than the marginal cost of production . This allows the author to recoup the cost of making the original work, without needing to find a single customer that can bear the entire cost. Conventional copyright thus creates access costs for consumers who value the work more than the marginal cost but less than the initial production cost . Access costs also pose problems for authors who wish to create a derivative work - such as a copy of a software program modified to fix a bug or add a feature, or a remix of a song - but are unable or unwilling to pay the copyright holder for the right to do so.
http://en.wikipedia.org/wiki/Open_source
Information Good
Information good in economics and law is a type commodity whose main market value is derived from the information it contains
http://en.wikipedia.org/wiki/Information_good
bartering and collaboration recent trademark actions by GM/DUTV making sense maybe.
Looking Forward to the Big Reveal.......will know more then..........Rock On
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