Is there any chance that the Broadcom graphics chip, which I gather isn't fully used at present, could eventually deliver live streamed video?
From what I've read, at present that is all done by the ARM processor which is too slow by a factor of about 20 to keep up.
-- Windmill, TiltNot@Nonetel.com Use t m i l l J.R.R. Tolkien:- @ O n e t e l . c o m All that is gold does not glister / Not all who wander are lost
Dzieki, Windmill, za post o tresci:
That's not current knowledge, videocore is being utilised:
Of course it would be better if Broadcom and Raspberry Foundation released specification for GPU.
-- Tomasz Torcz There exists no separation between gods and men: xmpp: zdzichubg@chrome.pl one blends softly casual into the other.
Try telling that to the 1000s of people currently streaming movies, etc. from their home NAS systems, or via the Interwebs to their Pi...
Feed it h264 video and it will decode it and play it at full HD rates. It did that more or less from day 1.
The arm moves the data into the GPU. The GPU decodes and displays it. Simples.
One site that does it on the Pi:
another:
and so on.
Gordon
gather
streamed
That's taking a precompressed file/feed though not a live HD-SDI output of a camera (at 1.485 Gbps), compressing it in real time and squirting out a stream for lesser devices to decode/display... Not sure how you'd get the HD-SDI into a Pi though. B-) Could you get the slowest SD-SDI in that's only 143 Mbps but considered obsolete.
270 Mbps is the norm.-- Cheers Dave.
I recently read something which talked about getting just one or two frames per second. Don't know what exactly was being done, but if that's no longer true I'm happy.
-- Windmill, TiltNot@Nonetel.com Use t m i l l J.R.R. Tolkien:- @ O n e t e l . c o m All that is gold does not glister / Not all who wander are lost
Not that I believe everything I read on Usenet, but believing is my initial default position. I'm not (yet) familiar with the Rasp but I've seen statements to the effect that the Arm chip does most of the work even for graphics. Outdated information?
So instead of forgetting about using get-iplayer plus something else (VLC?) to look at live TV, I should be trying to learn how to do that? (Then alas I'll need a licence).
-- Windmill, TiltNot@Nonetel.com Use t m i l l J.R.R. Tolkien:- @ O n e t e l . c o m All that is gold does not glister / Not all who wander are lost
there's a world of difference between being able to spool a mpeg and being able to run Flash :-)
Does the Pi do Flash?
-- Ineptocracy (in-ep-toc?-ra-cy) ? a system of government where the least capable to lead are elected by the least capable of producing, and where the members of society least likely to sustain themselves or succeed, are rewarded with goods and services paid for by the confiscated wealth of a diminishing number of producers.
The Pi has been going for over a year now. 99% of the information is not on usenet. You'll find it all on forums, IRC, blogs, etc.
You need to understand what the ARM and GPUs can do - the ARM is not the most modern of chips - it's rather slow, but the GPU is quite quick. The ARM feeds the data into the GPU and the GPU decodes and displays it. For video, that's been the case since day 1.
Going the other way - the GPU can produce real-time H264 compressed data from the camera input. You can stream tht over the LAN to another Pi, or anything else that can dsiplay streamed h264 video.
You can play movies obtained via get-iplayer. Don't need a TV license if it's not live TV..
Gordon
For BBC iPlayer, apparently you are legal if what you are watching is at least 30 minutes after the live broadcast (even if the original broadcast is still going).
-- Alan Adams, from Northamptonshire alan@adamshome.org.uk http://www.nckc.org.uk/
Yes:
gnash - GNU Shockwave Flash (SWF) player
well, kind of.
:-)
-- ?? 100% natural
Only through gnash, the gnu version. It supports the version 7 swf features, but will lack codecs that need licensing. They can be added through plugins, though.
I haven't seen adobe software support the pi, or any other arm for that matter.
-- mrr
isn't flash available on Android?
-- Ineptocracy (in-ep-toc?-ra-cy) ? a system of government where the least capable to lead are elected by the least capable of producing, and where the members of society least likely to sustain themselves or succeed, are rewarded with goods and services paid for by the confiscated wealth of a diminishing number of producers.
Sort of, Adobe took it away but then put it back for some Android devices. I don't think they support it any longer.
-- Cheers Dave.
mplayer can handle some flash video content.
-- Chris
Clive and Youtube-dl are both pretty handy as well for offline viewing.
-B
There's another reason to use Android then!
-- Rick
"It's worth remembering though that if you've tried the Pi and found it a tad tardy, that's most likely because you've been running its GUI which is handled entirely by the CPU not the integrated GPU.
The Pi Foundation - the British charity that designed the $35 board - is working on a fix: porting the Wayland graphics engine to the BCM2835 will make use of the chip's GPU and, if a tech preview is anything to go by, will make the Pi desktop much more responsive. It won't be ready for public consumption until later this year, but it means you may not need to replace your Pi if its current desktop slowness is getting you down."
So yes, hopefully the whole thing would be speeded up later this year.
However, for live streaming video
"By contrast, the Pi's ARM-compatible Broadcom BCM2835 SoC has on-board H.264 encoding and decoding hardware with 1080p support out of the box"
So I think you may be mixing up support of the GUI (which doesn't use the graphics chip) with video streaming (which does).
Cheers
Dave R
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