[theora-dev] FOSS Codecs for Online Video: Usability, Uptake and Development - First Draft

Felipe Portavales Goldstein portavales at gmail.com
Tue Sep 18 13:33:04 PDT 2007

On the topic "Future of Web Video"

You say:
"Mobile devices often use hardware decoders rather than software
decoders to playback video due to the relatively smaller capacity of
the processor."

"Ogg Theora/Vorbis does have the potential to be supported by mobile
devices using the software decoder, but it remains to be seen what the
degree of uptake of this will be."

Actually, we are developing a Theora Hardware decoder solution aimed
to mobile/embedded devices.
The solution already works using our open source hardware design
integrated with the LEON processor (an open source processor).

We are capable to decode Theora streams in real-time (20 FPS) up to
600 Kbps  running on an FPGA at 50 MHz.
The video resolution is still very limited, but we are hard-working to
improve the resolution using a different memory hierarchy in our
hardware decoder.

I believe that we will be able to decode high resolution video streams
in the near future, with a complete open source hardware platform.

The hardware theora source code are located on the Xiph SVN:


On 9/18/07, anna at engagemedia.org <anna at engagemedia.org> wrote:
> Dear Theora/Xiph folk,
> *
> FOSS Codecs for Online Video: Usability, Uptake and Development - First
> Draft*
> A review of available tools for the creation, playback and embedding of
> online video using Free and Open Source Software video codecs and a look
> at the most pressing areas for development to enhance their adoption by
> social change video projects on the web.
> http://wiki.transmission.cc/index.php/FOSS_Codecs_For_Online_Video:_Usability%2C_Uptake_and_Development
> I have been writing this report into FOSS Video Codecs for the last few
> months for the Transmission network of online video projects for social
> change.
> http://transmission.cc
> A version in PDF (see below) is also available for reading offline here:
> http://www.engagemedia.org/Members/anna/FOSS_Codecs_For_Online_Video_1_1.pdf
> I would rather have feedback into a second draft from the Transmission
> network before distributing the report too widely, to ensure the report
> benefits from all our knowledge and reflects the needs of the network.
> But I thought people on this list might like to take a look at the draft
> and let me know what is missing or pitch in with some different
> opinions. It is a set of practical recommendations for projects within
> our network and beyond, rather than an academic report.
> The recommendations cover codecs and containers, player and transcoding
> software, server-side transcoding, embedded playback, support of FOSS
> codecs in popular CMSs and the development of a transcoder/uploader client.
> The report PDF has some formatting errors and I'd prefer to distribute
> it in an open format - but I can't find a good solution for exporting
> from MediaWiki - please let me know if anyone has any ideas on this.
> Cheers,
> Anna
> http://EngageMedia.org
> http://Plumi.org
> _______________________________________________
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> theora-dev at xiph.org
> http://lists.xiph.org/mailman/listinfo/theora-dev

Felipe Portavales Goldstein <portavales at gmail>
Undergraduate Student - IC-UNICAMP
Computer Systems Laboratory

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