Real Video streams - Revision history

imported_>amigadave: remove Category:Users

2010-02-11T14:42:36Z

← Older revision		Revision as of 14:42, 11 February 2010
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	Here's how to get streaming video playback to work (thanks to Nathan Davenport for instructions).		Here's how to get streaming video playback to work (thanks to Nathan Davenport for instructions).

	The Nokia 770/N800/N810 supports streaming of Real Video RV40 over rtsp.		The [[Nokia 770]]/[[Nokia N800\|N800]]/[[Nokia N810\|N810]] supports streaming of Real Video RV40 over rtsp.

	Streaming of Real Video files works either over a protocol called RTSP or over normal HTTP. So you don't really have to use an RTSP server, just put a directory on apache.		Streaming of Real Video files works either over a protocol called RTSP or over normal HTTP. So you don't really have to use an RTSP server, just put a directory on apache.
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	A popup window (or a status bar with newer releases) will appear that tells you it's buffering data and after 10 seconds or so it will start playing merrily.		A popup window (or a status bar with newer releases) will appear that tells you it's buffering data and after 10 seconds or so it will start playing merrily.

	~~[[Category:Users]]~~
	[[Category:Media]]		[[Category:Media]]
	[[Category:Midgard wiki]]		[[Category:Midgard wiki]]


	[[Category:Power users]]		[[Category:Power users]]

imported_>ossipena at 12:21, 1 November 2009

2009-11-01T12:21:14Z

← Older revision		Revision as of 12:21, 1 November 2009
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	[[Category:Media]]		[[Category:Media]]
	[[Category:Midgard wiki]]		[[Category:Midgard wiki]]


			[[Category:Power users]]

imported_>qwerty12: Adding to Media category

2009-01-18T17:12:11Z

Adding to Media category

← Older revision		Revision as of 17:12, 18 January 2009
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	{{Midgard article}}		{{Midgard article}}

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	[[Category:Users]]		[[Category:Users]]
			[[Category:Media]]
	[[Category:Midgard wiki]]		[[Category:Midgard wiki]]

imported_>dneary at 17:07, 9 June 2008

2008-06-09T17:07:19Z

← Older revision		Revision as of 17:07, 9 June 2008
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			{{Midgard article}}

	Here's how to get streaming video playback to work (thanks to Nathan Davenport for instructions).		Here's how to get streaming video playback to work (thanks to Nathan Davenport for instructions).

imported_>dneary at 15:51, 9 June 2008

2008-06-09T15:51:50Z

← Older revision		Revision as of 15:51, 9 June 2008
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	== Encode your video to Real Video ==		== Encode your video to Real Video ==

	For limits with video size/quality/settings keep [[~~Video~~ encoding]] in mind.		For limits with video size/quality/settings keep [[video encoding]] in mind. To generate video which will play correctly on Nokia tablets, the easiest method is to use [http://mediautils.garage.maemo.org/tablet-encode.html tablet-encode], which wraps [http://www.mplayerhq.hu/ mencoder from MPlayer]. For information on the constraints for video on the Nokia tablets, read [[video encoding]].

	Get [https://helix-producer.helixcommunity.org/ Helix DNA Producer] (or alternatively [http://www.realnetworks.com/products/producer/index.html Real Producer]) for encoding to Real format.		Get [https://helix-producer.helixcommunity.org/ Helix DNA Producer] (or alternatively [http://www.realnetworks.com/products/producer/index.html Real Producer]) for encoding to Real format.
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	On Linux, Helix/Real Producer can read only uncompressed audio and video from an AVI file. In addition, it does not support piping, which means that you need large amounts of temporary hard disk. On Windows, the situation is much better as Helix/Real producer can read almost any media format that has Windows codecs installed.		On Linux, Helix/Real Producer can read only uncompressed audio and video from an AVI file. In addition, it does not support piping, which means that you need large amounts of temporary hard disk. On Windows, the situation is much better as Helix/Real producer can read almost any media format that has Windows codecs installed.

	If you are using Linux and need to create the uncompressed video, you can do it either by using [http://ffmpeg.sourceforge.net/ Ffmpeg] or ~~[http://www.mplayerhq.hu/~~ mencoder ~~from MPlayer]~~:		If you are using Linux and need to create the uncompressed video, you can do it either by using [http://ffmpeg.sourceforge.net/ Ffmpeg] or mencoder:

	ffmpeg -i original.mpg -vcodec rawvideo -acodec pcm_s16le -s 176x144 $2.avi		ffmpeg -i original.mpg -vcodec rawvideo -acodec pcm_s16le -s 176x144 $2.avi

imported_>dneary: Create initial revision of "Real Video streams" page

2008-06-09T15:43:59Z

Create initial revision of "Real Video streams" page

New page

Here's how to get streaming video playback to work (thanks to Nathan Davenport for instructions).

The Nokia 770/N800/N810 supports streaming of Real Video RV40 over rtsp.

Streaming of Real Video files works either over a protocol called RTSP or over normal HTTP. So you don't really have to use an RTSP server, just put a directory on apache.

But first, get your video in a nice format the Nokia tablet likes:

== Encode your video to Real Video ==

For limits with video size/quality/settings keep [[Video encoding]] in mind.

Get [https://helix-producer.helixcommunity.org/ Helix DNA Producer] (or alternatively [http://www.realnetworks.com/products/producer/index.html Real Producer]) for encoding to Real format.

On Linux, Helix/Real Producer can read only uncompressed audio and video from an AVI file. In addition, it does not support piping, which means that you need large amounts of temporary hard disk. On Windows, the situation is much better as Helix/Real producer can read almost any media format that has Windows codecs installed.

If you are using Linux and need to create the uncompressed video, you can do it either by using [http://ffmpeg.sourceforge.net/ Ffmpeg] or [http://www.mplayerhq.hu/ mencoder from MPlayer]:

ffmpeg -i original.mpg -vcodec rawvideo -acodec pcm_s16le -s 176x144 $2.avi

or

mencoder -quiet -o temp.avi original.mpg -oac pcm -ovc raw

(Note that uncompressed video is very big (read, gigabytes for half an hour video))

The video can be encoded to Real format by using the following command:

producer -i temp.avi -o temp.rm

If you created the uncompressed temporary file, remember to remove it:

rm -f temp.avi

== Apache HTTP server ==

The easy way is to put your videos in a directory served by apache and create a .htaccess:

<Files ~ ".*">
# Nokia 770 weirdness
[ForceType] audio/x-pn-realaudio # wrong, but works
#ForceType application/vnd.rn-realmedia # official, but doesn't work
#ForceType video/vnd.rn-realvideo # official, but doesn't work
</Files>

<Files ~ "index.php">
[ForceType] application/x-httpd-php
</Files>

(be sure the <Directory> in apache2.conf or sites-enabled has ''''''AllowOverride'''''' ''''''FileInfo'''''')

On other web servers you can try setting the video file extension to .ram rather than .rv to trick it into setting the compatible mime type.

== Set Up a RTSP server ==

You can spare yourself the work of setting up a RTSP server, just use apache.

But if you insist:

Once you have the little Real Video file, you can set up a RTSP server so that the Nokia Video Player can open it from your computer.
I used [http://www.realnetworks.com/products/evalservers.html Real Basic Server] to do that, even though it is very very HUGE (both disk space and memory space, uses 10% of my 512MB RAM ''when idle'').

Install it by launching the executable downloaded.

An installation directory will be created.

In the installation directory there is a subdirectory "Content/" which contains the files that are available to the clients (i.e. the ''Videos'') which is used by default (this location can and should be changed by editing rmserver.cfg).

(it's best to copy the config file to /etc or somewhere you actually *look* for it :) )

In the installation directory launch "Bin/rmserver rmserver.cfg" as root (because of the port number, I guess
when the port number were >1023, you wouldn't have to be root)

That will produce a screenful or so of output, ending with:

Starting TID 2997877664/29271, procnum 7 (streamer)

I: Helix Server (c) 1995-2005 [RealNetworks,] Inc. All rights reserved.
I: Version: Helix Server 11.0 (11.0.1.1884)
I: Platform: linux-rhel4-i686

'''Note:'''

There is also
[http://streaming.polito.it/server Fenice] which looks much nicer (easy to configure, easy to install, source available, smaller, autoconf, no magic installer, ...), but at least with a quick try I couldn't get it to support Real Video files. It would always yield format unsupported.

== Play the File on the Nokia 770 ==

Now after all is done, open the video player on the Nokia 770.

For that open Video Player, open the Menu "Video", activate the item "Open Stream...", and put:

for RTSP:
rtsp://192.168.0.1/somefile

for HTTP:
<http://192.168.0.1/somefile>

(Where 192.168.0.1 is your main computer's IP address)

A popup window (or a status bar with newer releases) will appear that tells you it's buffering data and after 10 seconds or so it will start playing merrily.

[[Category:Users]]
[[Category:Midgard wiki]]