Re: [mythtv-users] HDTV Streaming over Wireless + Caching
> its not quite enough. My hope has been that some of the transcode stuff > will eventually get changed (or explained well enough to me that I can > change it myself) so that I can transcode down from the huge resolutions I > am forced to capture in to 720p resolutions since I can't do more than 720p > on my TV anyway. That will at least get the amount of data down a bit. Current CVS supports changing resolution during transcoding. I added this ability and a few other tweaks to allow me to transcode recordings from my air2pc card down to a lower resolution/bitrate to both save space as well as make them playable on slower frontends. -- Chris ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
Re: [mythtv-users] HDTV Streaming over Wireless + Caching
Well this brings up a suggestion What about implementing a builtin caching sort of thing, similar to how you would cache something streamed over the web in real player. Something that would at least fill the buffer to a certain amount based upon the speed its being sent at? On Fri, 25 Mar 2005 18:02:43 -0800, Brad Templeton <[EMAIL PROTECTED]> wrote: > On Thu, Mar 24, 2005 at 04:10:38PM -0800, Richard J. Sears wrote: > > Is there any way to deal with this by caching to the frontend to help > > this problem out...? > > > > So you hit the "play" button and it starts a 3 to 5 minute caching > > process (which should be enough) and then starts playing. > > > > Wireless is the only way for me to get there. > > > > What about "non-HD" cable channels..what is the requirement there..? > > Well, you could pull the following trick. If the frontend magically > finds a copy of the file on the local machine, it plays that instead of > trying to pull it from the backend over the net. > > So you could fire up a task on the frontend to start copying the file from > the backend with rsync, for example (might want to use the rsync protocol > instead > of ssh) and start the actual playing shortly thereafter. As long as your > average wireless throughput is sufficient, you will not suffer from the > temporary dropouts. > > You would have to remember to delete locally etc. > > > ___ > mythtv-users mailing list > mythtv-users@mythtv.org > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users > > > ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
Re: [mythtv-users] HDTV Streaming over Wireless + Caching
On Thu, Mar 24, 2005 at 04:10:38PM -0800, Richard J. Sears wrote: > Is there any way to deal with this by caching to the frontend to help > this problem out...? > > So you hit the "play" button and it starts a 3 to 5 minute caching > process (which should be enough) and then starts playing. > > Wireless is the only way for me to get there. > > What about "non-HD" cable channels..what is the requirement there..? Well, you could pull the following trick. If the frontend magically finds a copy of the file on the local machine, it plays that instead of trying to pull it from the backend over the net. So you could fire up a task on the frontend to start copying the file from the backend with rsync, for example (might want to use the rsync protocol instead of ssh) and start the actual playing shortly thereafter. As long as your average wireless throughput is sufficient, you will not suffer from the temporary dropouts. You would have to remember to delete locally etc. ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
RE: [mythtv-users] HDTV Streaming over Wireless + Caching
I completely misread, I apologize. Although I will admit my regular TV has a hard time some times due to interference. Hopefully soon I'll find an antenna or something to fix this. -Todd -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Art Morales Sent: Thursday, March 24, 2005 6:26 PM To: Discussion about mythtv Subject: Re: [mythtv-users] HDTV Streaming over Wireless + Caching Don't get me wrong, I can't watch HDTV through wireless... I can only watch non-HD as I indicated, those files are about 1-1.3 gigs an hour, so they work quite well. Art On Thu, 24 Mar 2005 17:48:44 -0800, Todd Tidwell <[EMAIL PROTECTED]> wrote: > Then you are incredibly lucky with your wireless. I've tried both 802.11g > and 802.11a networks and I still have issues. I'm right on the skirt of > having enough bandwidth to basically move 6.3 - 7.3 gigabyte files from one > wireless machine to another via wireless. > > For me, one machine has a 60% connection and the other an 80% and that can > be +/- 10% each way for either machine. While that's right on the border, > its not quite enough. My hope has been that some of the transcode stuff > will eventually get changed (or explained well enough to me that I can > change it myself) so that I can transcode down from the huge resolutions I > am forced to capture in to 720p resolutions since I can't do more than 720p > on my TV anyway. That will at least get the amount of data down a bit. > > Meanwhile, the first poster is probably right in that it would be nice to > have some sort of buffer beyond what is currently used in the frontend as a > setting that could be used on a frontend by frontend basis to solve problems > like this. > > -Todd > > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Art Morales > Sent: Thursday, March 24, 2005 4:22 PM > To: Discussion about mythtv > Subject: Re: [mythtv-users] HDTV Streaming over Wireless + Caching > > Non-HD streams nicely over 802.11g, I get dropouts sometimes, but only > when I'm 2 floors from AP > > Art > > On Thu, 24 Mar 2005 16:10:38 -0800, Richard J. Sears > <[EMAIL PROTECTED]> wrote: > > Is there any way to deal with this by caching to the frontend to help > > this problem out...? > > > > So you hit the "play" button and it starts a 3 to 5 minute caching > > process (which should be enough) and then starts playing. > > > > Wireless is the only way for me to get there. > > > > What about "non-HD" cable channels..what is the requirement there..? > > > > Thanks > > > > On Thu, 24 Mar 2005 17:06:56 -0700 > > Brandon Beattie <[EMAIL PROTECTED]> wrote: > > > > > HD can be up to about 20Mb/s roughly then add tcp headers. The fastest > > > real world throughput you can get with a very good signal on a 54Mb > > > wireless a router is about 27-29Mb/s constant. (I work in this industry > > > so trust me on this). If you start adding walls it drops quickly. > > > Fire up a neighbors cordless phone or your own microwave and you have > > > even less usable bandwidth. Bottom line is you're right on the border > > > with a perfect signal to get enough bandwidth to push HD through all the > > > time. > > > > > > I've spoken with several people who have tried it and they report "it > > > works for the most part" but rarely can they get through a show without > > > it pausing a few times. I haven't heard of anyone using 108Mb/s > > > wireless routers yet to see if that help. > > > > > > My recommendation is don't do wireless. I think the Myth Docs say > > > something like "Don't even think about it." But if it works for you let > > > us know how you got it to work. > > > > > > --Brandon > > > > > > On Thu, Mar 24, 2005 at 03:46:42PM -0800, Richard J. Sears wrote: > > > > Does anyone know the bandwidth requirement for streaming HDTV signals > > > > from the backend to a frontend..? I have a 54mb wireless connection to > > > > one area I plan on putting in a front end and want to know if I it is > > > > capable of doing that..? > > > > > > > > How about regualr 1080i DVD's and normal cable..? > > > > > > > > Thanks > > > > > > > > ** > > > > Richard J. Sears > > > > Vice President > > > > American Internet Services > > > > ---
Re: [mythtv-users] HDTV Streaming over Wireless + Caching
Don't get me wrong, I can't watch HDTV through wireless... I can only watch non-HD as I indicated, those files are about 1-1.3 gigs an hour, so they work quite well. Art On Thu, 24 Mar 2005 17:48:44 -0800, Todd Tidwell <[EMAIL PROTECTED]> wrote: > Then you are incredibly lucky with your wireless. I've tried both 802.11g > and 802.11a networks and I still have issues. I'm right on the skirt of > having enough bandwidth to basically move 6.3 - 7.3 gigabyte files from one > wireless machine to another via wireless. > > For me, one machine has a 60% connection and the other an 80% and that can > be +/- 10% each way for either machine. While that's right on the border, > its not quite enough. My hope has been that some of the transcode stuff > will eventually get changed (or explained well enough to me that I can > change it myself) so that I can transcode down from the huge resolutions I > am forced to capture in to 720p resolutions since I can't do more than 720p > on my TV anyway. That will at least get the amount of data down a bit. > > Meanwhile, the first poster is probably right in that it would be nice to > have some sort of buffer beyond what is currently used in the frontend as a > setting that could be used on a frontend by frontend basis to solve problems > like this. > > -Todd > > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Art Morales > Sent: Thursday, March 24, 2005 4:22 PM > To: Discussion about mythtv > Subject: Re: [mythtv-users] HDTV Streaming over Wireless + Caching > > Non-HD streams nicely over 802.11g, I get dropouts sometimes, but only > when I'm 2 floors from AP > > Art > > On Thu, 24 Mar 2005 16:10:38 -0800, Richard J. Sears > <[EMAIL PROTECTED]> wrote: > > Is there any way to deal with this by caching to the frontend to help > > this problem out...? > > > > So you hit the "play" button and it starts a 3 to 5 minute caching > > process (which should be enough) and then starts playing. > > > > Wireless is the only way for me to get there. > > > > What about "non-HD" cable channels..what is the requirement there..? > > > > Thanks > > > > On Thu, 24 Mar 2005 17:06:56 -0700 > > Brandon Beattie <[EMAIL PROTECTED]> wrote: > > > > > HD can be up to about 20Mb/s roughly then add tcp headers. The fastest > > > real world throughput you can get with a very good signal on a 54Mb > > > wireless a router is about 27-29Mb/s constant. (I work in this industry > > > so trust me on this). If you start adding walls it drops quickly. > > > Fire up a neighbors cordless phone or your own microwave and you have > > > even less usable bandwidth. Bottom line is you're right on the border > > > with a perfect signal to get enough bandwidth to push HD through all the > > > time. > > > > > > I've spoken with several people who have tried it and they report "it > > > works for the most part" but rarely can they get through a show without > > > it pausing a few times. I haven't heard of anyone using 108Mb/s > > > wireless routers yet to see if that help. > > > > > > My recommendation is don't do wireless. I think the Myth Docs say > > > something like "Don't even think about it." But if it works for you let > > > us know how you got it to work. > > > > > > --Brandon > > > > > > On Thu, Mar 24, 2005 at 03:46:42PM -0800, Richard J. Sears wrote: > > > > Does anyone know the bandwidth requirement for streaming HDTV signals > > > > from the backend to a frontend..? I have a 54mb wireless connection to > > > > one area I plan on putting in a front end and want to know if I it is > > > > capable of doing that..? > > > > > > > > How about regualr 1080i DVD's and normal cable..? > > > > > > > > Thanks > > > > > > > > ** > > > > Richard J. Sears > > > > Vice President > > > > American Internet Services > > > > > > > > [EMAIL PROTECTED] > > > > http://www.adnc.com > > > > > > > > 858.576.4272 - Phone > > > > 858.427.2401 - Fax > > > > INOC-DBA - 6130 > > > > > > > > > > > > I fly because it re
RE: [mythtv-users] HDTV Streaming over Wireless + Caching
Then you are incredibly lucky with your wireless. I've tried both 802.11g and 802.11a networks and I still have issues. I'm right on the skirt of having enough bandwidth to basically move 6.3 - 7.3 gigabyte files from one wireless machine to another via wireless. For me, one machine has a 60% connection and the other an 80% and that can be +/- 10% each way for either machine. While that's right on the border, its not quite enough. My hope has been that some of the transcode stuff will eventually get changed (or explained well enough to me that I can change it myself) so that I can transcode down from the huge resolutions I am forced to capture in to 720p resolutions since I can't do more than 720p on my TV anyway. That will at least get the amount of data down a bit. Meanwhile, the first poster is probably right in that it would be nice to have some sort of buffer beyond what is currently used in the frontend as a setting that could be used on a frontend by frontend basis to solve problems like this. -Todd -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Art Morales Sent: Thursday, March 24, 2005 4:22 PM To: Discussion about mythtv Subject: Re: [mythtv-users] HDTV Streaming over Wireless + Caching Non-HD streams nicely over 802.11g, I get dropouts sometimes, but only when I'm 2 floors from AP Art On Thu, 24 Mar 2005 16:10:38 -0800, Richard J. Sears <[EMAIL PROTECTED]> wrote: > Is there any way to deal with this by caching to the frontend to help > this problem out...? > > So you hit the "play" button and it starts a 3 to 5 minute caching > process (which should be enough) and then starts playing. > > Wireless is the only way for me to get there. > > What about "non-HD" cable channels..what is the requirement there..? > > Thanks > > On Thu, 24 Mar 2005 17:06:56 -0700 > Brandon Beattie <[EMAIL PROTECTED]> wrote: > > > HD can be up to about 20Mb/s roughly then add tcp headers. The fastest > > real world throughput you can get with a very good signal on a 54Mb > > wireless a router is about 27-29Mb/s constant. (I work in this industry > > so trust me on this). If you start adding walls it drops quickly. > > Fire up a neighbors cordless phone or your own microwave and you have > > even less usable bandwidth. Bottom line is you're right on the border > > with a perfect signal to get enough bandwidth to push HD through all the > > time. > > > > I've spoken with several people who have tried it and they report "it > > works for the most part" but rarely can they get through a show without > > it pausing a few times. I haven't heard of anyone using 108Mb/s > > wireless routers yet to see if that help. > > > > My recommendation is don't do wireless. I think the Myth Docs say > > something like "Don't even think about it." But if it works for you let > > us know how you got it to work. > > > > --Brandon > > > > On Thu, Mar 24, 2005 at 03:46:42PM -0800, Richard J. Sears wrote: > > > Does anyone know the bandwidth requirement for streaming HDTV signals > > > from the backend to a frontend..? I have a 54mb wireless connection to > > > one area I plan on putting in a front end and want to know if I it is > > > capable of doing that..? > > > > > > How about regualr 1080i DVD's and normal cable..? > > > > > > Thanks > > > > > > ** > > > Richard J. Sears > > > Vice President > > > American Internet Services > > > > > > [EMAIL PROTECTED] > > > http://www.adnc.com > > > > > > 858.576.4272 - Phone > > > 858.427.2401 - Fax > > > INOC-DBA - 6130 > > > > > > > > > I fly because it releases my mind > > > from the tyranny of petty things . . > > > > > > > > > "Work like you don't need the money, love like you've > > > never been hurt and dance like you do when nobody's > > > watching." > > > > > > > > ___ > > > mythtv-users mailing list > > > mythtv-users@mythtv.org > > > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users > > > > > > -- > > ** > Richard J. Sears > Vice President > American Internet S
Re: [mythtv-users] HDTV Streaming over Wireless + Caching
Non-HD streams nicely over 802.11g, I get dropouts sometimes, but only when I'm 2 floors from AP Art On Thu, 24 Mar 2005 16:10:38 -0800, Richard J. Sears <[EMAIL PROTECTED]> wrote: > Is there any way to deal with this by caching to the frontend to help > this problem out...? > > So you hit the "play" button and it starts a 3 to 5 minute caching > process (which should be enough) and then starts playing. > > Wireless is the only way for me to get there. > > What about "non-HD" cable channels..what is the requirement there..? > > Thanks > > On Thu, 24 Mar 2005 17:06:56 -0700 > Brandon Beattie <[EMAIL PROTECTED]> wrote: > > > HD can be up to about 20Mb/s roughly then add tcp headers. The fastest > > real world throughput you can get with a very good signal on a 54Mb > > wireless a router is about 27-29Mb/s constant. (I work in this industry > > so trust me on this). If you start adding walls it drops quickly. > > Fire up a neighbors cordless phone or your own microwave and you have > > even less usable bandwidth. Bottom line is you're right on the border > > with a perfect signal to get enough bandwidth to push HD through all the > > time. > > > > I've spoken with several people who have tried it and they report "it > > works for the most part" but rarely can they get through a show without > > it pausing a few times. I haven't heard of anyone using 108Mb/s > > wireless routers yet to see if that help. > > > > My recommendation is don't do wireless. I think the Myth Docs say > > something like "Don't even think about it." But if it works for you let > > us know how you got it to work. > > > > --Brandon > > > > On Thu, Mar 24, 2005 at 03:46:42PM -0800, Richard J. Sears wrote: > > > Does anyone know the bandwidth requirement for streaming HDTV signals > > > from the backend to a frontend..? I have a 54mb wireless connection to > > > one area I plan on putting in a front end and want to know if I it is > > > capable of doing that..? > > > > > > How about regualr 1080i DVD's and normal cable..? > > > > > > Thanks > > > > > > ** > > > Richard J. Sears > > > Vice President > > > American Internet Services > > > > > > [EMAIL PROTECTED] > > > http://www.adnc.com > > > > > > 858.576.4272 - Phone > > > 858.427.2401 - Fax > > > INOC-DBA - 6130 > > > > > > > > > I fly because it releases my mind > > > from the tyranny of petty things . . > > > > > > > > > "Work like you don't need the money, love like you've > > > never been hurt and dance like you do when nobody's > > > watching." > > > > > > > > ___ > > > mythtv-users mailing list > > > mythtv-users@mythtv.org > > > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users > > > > > > -- > > ** > Richard J. Sears > Vice President > American Internet Services > > [EMAIL PROTECTED] > http://www.adnc.com > > 858.576.4272 - Phone > 858.427.2401 - Fax > INOC-DBA - 6130 > > > I fly because it releases my mind > from the tyranny of petty things . . > > "Work like you don't need the money, love like you've > never been hurt and dance like you do when nobody's > watching." > > > ___ > mythtv-users mailing list > mythtv-users@mythtv.org > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users > > > ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
Re: [mythtv-users] HDTV Streaming over Wireless + Caching
Is there any way to deal with this by caching to the frontend to help this problem out...? So you hit the "play" button and it starts a 3 to 5 minute caching process (which should be enough) and then starts playing. Wireless is the only way for me to get there. What about "non-HD" cable channels..what is the requirement there..? Thanks On Thu, 24 Mar 2005 17:06:56 -0700 Brandon Beattie <[EMAIL PROTECTED]> wrote: > HD can be up to about 20Mb/s roughly then add tcp headers. The fastest > real world throughput you can get with a very good signal on a 54Mb > wireless a router is about 27-29Mb/s constant. (I work in this industry > so trust me on this). If you start adding walls it drops quickly. > Fire up a neighbors cordless phone or your own microwave and you have > even less usable bandwidth. Bottom line is you're right on the border > with a perfect signal to get enough bandwidth to push HD through all the > time. > > I've spoken with several people who have tried it and they report "it > works for the most part" but rarely can they get through a show without > it pausing a few times. I haven't heard of anyone using 108Mb/s > wireless routers yet to see if that help. > > My recommendation is don't do wireless. I think the Myth Docs say > something like "Don't even think about it." But if it works for you let > us know how you got it to work. > > --Brandon > > On Thu, Mar 24, 2005 at 03:46:42PM -0800, Richard J. Sears wrote: > > Does anyone know the bandwidth requirement for streaming HDTV signals > > from the backend to a frontend..? I have a 54mb wireless connection to > > one area I plan on putting in a front end and want to know if I it is > > capable of doing that..? > > > > How about regualr 1080i DVD's and normal cable..? > > > > Thanks > > > > ** > > Richard J. Sears > > Vice President > > American Internet Services > > > > [EMAIL PROTECTED] > > http://www.adnc.com > > > > 858.576.4272 - Phone > > 858.427.2401 - Fax > > INOC-DBA - 6130 > > > > > > I fly because it releases my mind > > from the tyranny of petty things . . > > > > > > "Work like you don't need the money, love like you've > > never been hurt and dance like you do when nobody's > > watching." > > > > > ___ > > mythtv-users mailing list > > mythtv-users@mythtv.org > > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users > > > -- ** Richard J. Sears Vice President American Internet Services [EMAIL PROTECTED] http://www.adnc.com 858.576.4272 - Phone 858.427.2401 - Fax INOC-DBA - 6130 I fly because it releases my mind from the tyranny of petty things . . "Work like you don't need the money, love like you've never been hurt and dance like you do when nobody's watching." ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
