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| The Following 2 Users Say Thank You to debernardis For This Useful Post: | ||
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2009-05-20
, 06:55
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Moderator |
Posts: 7,109 |
Thanked: 8,820 times |
Joined on Oct 2007
@ Vancouver, BC, Canada
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#2
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Sadly, that will do nothing for the current-gen tablets. All that stuff is obviously aimed squarely at the next-gen Maemo 5 devices, which use the OMAP3 SoC, rather than the OMAP2 SoC on our beloved tablets.
The good news is that we will probably be able to use GStreamer to do A/V tasks on the new tablets. This means recording audio and video, streaming A/V out to the Net, etc. All with very little programming.
EDIT: With the new devices having a lot of processing muscle, and GStreamer plugins already written for them, there are some very interesting options opening up, such as a mobile media server...
Last edited by qole; 2009-05-20 at 07:06.
The good news is that we will probably be able to use GStreamer to do A/V tasks on the new tablets. This means recording audio and video, streaming A/V out to the Net, etc. All with very little programming.
EDIT: With the new devices having a lot of processing muscle, and GStreamer plugins already written for them, there are some very interesting options opening up, such as a mobile media server...
Last edited by qole; 2009-05-20 at 07:06.
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2009-05-20
, 07:35
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Posts: 7,109 |
Thanked: 8,820 times |
Joined on Oct 2007
@ Vancouver, BC, Canada
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#3
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I'm getting more and more excited as I read about this Flumotion server... Looks pretty straightforward to set up a web cam to stream out to the web...
Makes me wonder if this can be done already using the tablet as the "Video Worker" and a desktop computer as the "Manager," "Muxer Worker," and "Streamer Worker". That might take some of the strain off of the poor little tablet.
Makes me wonder if this can be done already using the tablet as the "Video Worker" and a desktop computer as the "Manager," "Muxer Worker," and "Streamer Worker". That might take some of the strain off of the poor little tablet.
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2009-05-20
, 09:31
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Posts: 276 |
Thanked: 160 times |
Joined on Jul 2007
@ Bath, UK
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#4
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Clearly the next tablet is going to be heavily orientated around its media capabilities. At OSiM last year there was a lot of talk about the camera and what you could do with it, video, photo's e.t.c. I can't see why streaming wouldn't be a big factor too. With the online OVI presence Nokia has, uploading videos and even live streaming would fit in with their slogan "Share photos and videos. Anytime. Anywhere."[1]
[1] http://share.ovi.com/?utm_campaign=O...id=ShareBridge
[1] http://share.ovi.com/?utm_campaign=O...id=ShareBridge
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| The Following User Says Thank You to Baloo For This Useful Post: | ||
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2009-05-20
, 10:21
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Posts: 2,802 |
Thanked: 4,491 times |
Joined on Nov 2007
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#5
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Originally Posted by qole
I wonder how different the OMAP3 DSP is - maybe some of these codecs could be ported?
Sadly, that will do nothing for the current-gen tablets. All that stuff is obviously aimed squarely at the next-gen Maemo 5 devices, which use the OMAP3 SoC, rather than the OMAP2 SoC on our beloved tablets.
gst-ti-plugin-full-0.99.00/ti_build/ticodecplugin/src/gstticodecs_omap3530.c lists the following:
Code:
/* Audio Decoders */
{
"AAC Audio Decoder", /* String name of codec used by plugin */
"aachedec", /* String name of codec used by CE */
decodeEngine /* Engine that contains this codec */
}, {
"MPEG1L2 Audio Decoder", /* String name of codec used by plugin */
"mp3dec", /* String name of codec used by CE */
decodeEngine /* Engine that contains this codec */
}, {
"MPEG1L3 Audio Decoder", /* String name of codec used by plugin */
"mp3dec", /* String name of codec used by CE */
decodeEngine /* Engine that contains this codec */
}, {
"WMA Audio Decoder", /* String name of codec used by plugin */
"wmadec", /* String name of codec used by CE */
decodeEngine /* Engine that contains this codec */
},
/* Video Decoders */
{
"H.264 Video Decoder", /* String name of codec used by plugin */
"h264dec", /* String name of codec used by CE */
decodeEngine /* Engine that contains this codec */
}, {
"MPEG4 Video Decoder", /* String name of codec used by plugin */
"mpeg4dec", /* String name of codec used by CE */
decodeEngine /* Engine that contains this codec */
}, {
"MPEG2 Video Decoder", /* String name of codec used by plugin */
"mpeg2dec", /* String name of codec used by CE */
decodeEngine /* Engine that contains this codec */
},
/* Image Decoders */
{
"JPEG Image Decoder", /* String name of codec used by plugin */
"jpegdec", /* String name of codec used by CE */
decodeEngine /* Engine that contains this codec */
},
/* Video Encoders */
{
"H.264 Video Encoder", /* String name of codec used by plugin */
"h264enc", /* String name of codec used by CE */
encodeEngine /* Engine that contains this codec */
}, {
"MPEG4 Video Encoder", /* String name of codec used by plugin */
"mpeg4enc", /* String name of codec used by CE */
encodeEngine /* Engine that contains this codec */
},
/* Image Encoders */
{
"JPEG Image Encoder", /* String name of codec used by plugin */
"jpegenc", /* String name of codec used by CE */
encodeEngine /* Engine that contains this codec */
},
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2009-05-20
, 11:12
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Posts: 2,102 |
Thanked: 1,309 times |
Joined on Sep 2006
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#7
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We could do JPEG acceleration on the current DSP. I setup a Garage project and started work on this, but other things have got in the way. If anyone's interested then I can have a chat to you about it.
| The Following User Says Thank You to lardman For This Useful Post: | ||
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2009-05-20
, 12:13
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Posts: 3,319 |
Thanked: 5,610 times |
Joined on Aug 2008
@ Finland
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#8
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I'd be interested, especially if we could integrate it into pyqtoreader, but my ARM/ASM skills are worse than puny. 
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2009-05-20
, 13:08
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Posts: 2,102 |
Thanked: 1,309 times |
Joined on Sep 2006
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#9
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No need for ASM in the fist instance, the DSP can be programmed in plain C (and use the wrapped macros to access the accelerated functions, etc.). But there are no 8-bit types on the DSP, only a small problem 
I was thinking of writing something which has the same sorts of entry points as libjpeg does, so that would certainly be doable.
The only issue is writing the algorithmic stuff to support all the jpeg types, and I've just not had the time to do this. Yet. I'm sure with some support/interest I'll get it sorted.
I was thinking of writing something which has the same sorts of entry points as libjpeg does, so that would certainly be doable.
The only issue is writing the algorithmic stuff to support all the jpeg types, and I've just not had the time to do this. Yet. I'm sure with some support/interest I'll get it sorted.
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2009-05-20
, 17:09
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Moderator |
Posts: 7,109 |
Thanked: 8,820 times |
Joined on Oct 2007
@ Vancouver, BC, Canada
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#10
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Originally Posted by Baloo
I've been thinking more about this; with fast enough hardware (or good hardware encoding), and a good enough camera, you could easily have high-quality, live-to-broadcast streaming video, like Edison Carter in Max Headroom, except your camera is a tiny handheld device.
Clearly the next tablet is going to be heavily orientated around its media capabilities. At OSiM last year there was a lot of talk about the camera and what you could do with it, video, photo's etc. I can't see why streaming wouldn't be a big factor too. With the online OVI presence Nokia has, uploading videos and even live streaming would fit in with their slogan "Share photos and videos. Anytime. Anywhere."
Could this give more oxygen to multimedia apps on our tablets?
http://www.linuxdevices.com/news/NS7...36.html?kc=rss
https://gstreamer.ti.com/gf/project/...T+gstreamer-pr
Ernesto de Bernardis