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mpeg4 on Ion ?
Submitted by Kevin Bailey on Tue, 03/02/2010 - 09:29
I've started playing around with transcoding shows to save
space. (The Olympics "challenged" my backend. :-) ) But it seems
that my Zotac Ion (single core) has trouble playing mpeg4.
(I assume its mpeg4. I picked it under "transcode from mpeg2",
its a .nuv file and mplayer says that it uses the ffmpeg mpeg4
codec.)
I was hoping to verify with other Ion users that they have the
same trouble, or maybe get some tips on getting the video to
play.
The symptoms were that video is jerky, and audio is a little
off and also jerky. myth was taking up 70-90% of the CPU.
(It plays mpeg2 flawlessly.)
I've played with various settings but most don't have any
affect. The biggest help was turning off the de-interlacer
entirely.
I was running version 190 of the driver. I upgraded to 195
and now Bob Costas sounds like he's on helium.
I had allocated only 256M of video memory. I upped this
to 512M with no improvement.
So, is there no way to play mpeg4 on one of these guys ?
Thanks!
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mpeg4 on Ion ?
MPEG4 in VDPAU is a quite new feature and I think it only works on the G2xx
cards. I don't think the ION has the proper hardware for it. Transcode to
h264, and it should work fine. I don't know if there is a default setting in
Myth to do that though, you might have to set it up yourself.
mpeg4 on Ion ?
MPEG4 in VDPAU is a quite new feature and I think it only works on the G2xx
cards. I don't think the ION has the proper hardware for it. Transcode to
h264, and it should work fine. I don't know if there is a default setting in
Myth to do that though, you might have to set it up yourself.
mpeg4 on Ion ?
On Tue, Mar 2, 2010 at 10:53 AM, Travis Tabbal
wrote:
> MPEG4 in VDPAU is a quite new feature and I think it only works on the G2xx
> cards. I don't think the ION has the proper hardware for it. Transcode to
> h264, and it should work fine. I don't know if there is a default setting in
> Myth to do that though, you might have to set it up yourself.
Does anyone have a 'how-to' to transcode to h.264 and replace the
standard recording in myth, keeping the commflag positions, etc.
I have a user job that I use (using ffmpeg) to create a h.264 version
for my iPod, but I would prefer to use the 'built-in' mythtranscode if
I could - replacing the original file and keeping my commflag
positions if possible (rather than doing the actual cuts which
sometimes brings in a/v sync errors or gets the cuts slightly wrong).
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mpeg4 on Ion ?
On Tue, Mar 2, 2010 at 10:53 AM, Travis Tabbal
wrote:
> MPEG4 in VDPAU is a quite new feature and I think it only works on the G2xx
> cards. I don't think the ION has the proper hardware for it. Transcode to
> h264, and it should work fine. I don't know if there is a default setting in
> Myth to do that though, you might have to set it up yourself.
Does anyone have a 'how-to' to transcode to h.264 and replace the
standard recording in myth, keeping the commflag positions, etc.
I have a user job that I use (using ffmpeg) to create a h.264 version
for my iPod, but I would prefer to use the 'built-in' mythtranscode if
I could - replacing the original file and keeping my commflag
positions if possible (rather than doing the actual cuts which
sometimes brings in a/v sync errors or gets the cuts slightly wrong).
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mpeg4 on Ion ?
On 2 March 2010 16:53, Travis Tabbal
wrote:
> MPEG4 in VDPAU is a quite new feature and I think it only works on the G2xx
> cards. I don't think the ION has the proper hardware for it. Transcode to
> h264, and it should work fine. I don't know if there is a default setting in
> Myth to do that though, you might have to set it up yourself.
To try to avoid confusion, MPEG-4 is an umbrella standard/term and
includes H.264 (MPEG-4 AVC, MPEG-4 Part 10) and Xvid/DivX (MPEG-4 ASP,
MPEG-4 Part 2) [1].
H.264 can be decoded by all VDPAU-supported graphics chips (those
supporting feature sets A, B,or C). Xvid/DivX requires a graphics chip
supporting feature set C, which means a Geforce 200M series chip [2].
Ion chipsets only support feature set B, which will explain the OP's
problems.
[1] http://en.wikipedia.org/wiki/VDPAU
[2] http://en.wikipedia.org/wiki/Nvidia_PureVideo
Cheers,
Nick
--
Nick Morrott
MythTV Official wiki: http://mythtv.org/wiki/
MythTV users list archive: http://www.gossamer-threads.com/lists/mythtv/users
"An investment in knowledge always pays the best interest." - Benjamin Franklin
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mpeg4 on Ion ?
On 2 March 2010 16:53, Travis Tabbal
wrote:
> MPEG4 in VDPAU is a quite new feature and I think it only works on the G2xx
> cards. I don't think the ION has the proper hardware for it. Transcode to
> h264, and it should work fine. I don't know if there is a default setting in
> Myth to do that though, you might have to set it up yourself.
To try to avoid confusion, MPEG-4 is an umbrella standard/term and
includes H.264 (MPEG-4 AVC, MPEG-4 Part 10) and Xvid/DivX (MPEG-4 ASP,
MPEG-4 Part 2) [1].
H.264 can be decoded by all VDPAU-supported graphics chips (those
supporting feature sets A, B,or C). Xvid/DivX requires a graphics chip
supporting feature set C, which means a Geforce 200M series chip [2].
Ion chipsets only support feature set B, which will explain the OP's
problems.
[1] http://en.wikipedia.org/wiki/VDPAU
[2] http://en.wikipedia.org/wiki/Nvidia_PureVideo
Cheers,
Nick
--
Nick Morrott
MythTV Official wiki: http://mythtv.org/wiki/
MythTV users list archive: http://www.gossamer-threads.com/lists/mythtv/users
"An investment in knowledge always pays the best interest." - Benjamin Franklin
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mpeg4 on Ion ?
On 3/2/10 1:01 PM, Nick Morrott wrote:
> Xvid/DivX requires a graphics chip
> supporting feature set C, which means a Geforce 200M series chip [2].
> Ion chipsets only support feature set B
Ack. Well, that saved me some trouble. I was planning on buying a Revo
for a FE at some point, and most of my content has already been
transcoded to MPEG4.
Anybody have a good script to convert files en-masse, without affecting
other properties?
--
Dan Wilga "Ook."
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mpeg4 on Ion ?
On 3/2/10 1:01 PM, Nick Morrott wrote:
> Xvid/DivX requires a graphics chip
> supporting feature set C, which means a Geforce 200M series chip [2].
> Ion chipsets only support feature set B
Ack. Well, that saved me some trouble. I was planning on buying a Revo
for a FE at some point, and most of my content has already been
transcoded to MPEG4.
Anybody have a good script to convert files en-masse, without affecting
other properties?
--
Dan Wilga "Ook."
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mpeg4 on Ion ?
On Tue, Mar 02, 2010 at 02:30:34PM -0500, Dan Wilga wrote:
> On 3/2/10 1:01 PM, Nick Morrott wrote:
> >Xvid/DivX requires a graphics chip
> >supporting feature set C, which means a Geforce 200M series chip [2].
> >Ion chipsets only support feature set B
>
> Ack. Well, that saved me some trouble. I was planning on buying a
> Revo for a FE at some point, and most of my content has already been
> transcoded to MPEG4.
>
> Anybody have a good script to convert files en-masse, without
> affecting other properties?
Is your stuff HD or SD?
The limitations of the Revo in this respect are not as big of a deal with
the SD content. Although I would expect it to be a problem with HD stuff. A
ran an appletv and it handled myth recordings transcoded with the default
MPEG4 transcoder just fine (even HD). IONs have less raw CPU power than an
appletv though.
Apparently the ION2 stuff is not that far off.
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mpeg4 on Ion ?
On Tue, Mar 02, 2010 at 02:30:34PM -0500, Dan Wilga wrote:
> On 3/2/10 1:01 PM, Nick Morrott wrote:
> >Xvid/DivX requires a graphics chip
> >supporting feature set C, which means a Geforce 200M series chip [2].
> >Ion chipsets only support feature set B
>
> Ack. Well, that saved me some trouble. I was planning on buying a
> Revo for a FE at some point, and most of my content has already been
> transcoded to MPEG4.
>
> Anybody have a good script to convert files en-masse, without
> affecting other properties?
Is your stuff HD or SD?
The limitations of the Revo in this respect are not as big of a deal with
the SD content. Although I would expect it to be a problem with HD stuff. A
ran an appletv and it handled myth recordings transcoded with the default
MPEG4 transcoder just fine (even HD). IONs have less raw CPU power than an
appletv though.
Apparently the ION2 stuff is not that far off.
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mpeg4 on Ion ?
On 3/2/10 5:05 PM, jedi wrote:
> Is your stuff HD or SD?
>
> The limitations of the Revo in this respect are not as big of a deal with
> the SD content. Although I would expect it to be a problem with HD stuff. A
> ran an appletv and it handled myth recordings transcoded with the default
> MPEG4 transcoder just fine (even HD). IONs have less raw CPU power than an
> appletv though.
I've got some of both so, yes, HD will probably be an issue.
--
Dan Wilga "Ook."
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mpeg4 on Ion ?
On 3/2/10 5:05 PM, jedi wrote:
> Is your stuff HD or SD?
>
> The limitations of the Revo in this respect are not as big of a deal with
> the SD content. Although I would expect it to be a problem with HD stuff. A
> ran an appletv and it handled myth recordings transcoded with the default
> MPEG4 transcoder just fine (even HD). IONs have less raw CPU power than an
> appletv though.
I've got some of both so, yes, HD will probably be an issue.
--
Dan Wilga "Ook."
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mpeg4 on Ion ?
On Wed, Mar 3, 2010 at 8:30 AM, Dan Wilga
wrote:
> On 3/2/10 1:01 PM, Nick Morrott wrote:
>>
>> Xvid/DivX requires a graphics chip
>> supporting feature set C, which means a Geforce 200M series chip [2].
>> Ion chipsets only support feature set B
>
> Ack. Well, that saved me some trouble. I was planning on buying a Revo for a
> FE at some point, and most of my content has already been transcoded to
> MPEG4.
>
> Anybody have a good script to convert files en-masse, without affecting
> other properties?
handbrake and avidemux both work on the commandline and will capably
convert to h264.
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mpeg4 on Ion ?
On Wed, Mar 3, 2010 at 8:30 AM, Dan Wilga
wrote:
> On 3/2/10 1:01 PM, Nick Morrott wrote:
>>
>> Xvid/DivX requires a graphics chip
>> supporting feature set C, which means a Geforce 200M series chip [2].
>> Ion chipsets only support feature set B
>
> Ack. Well, that saved me some trouble. I was planning on buying a Revo for a
> FE at some point, and most of my content has already been transcoded to
> MPEG4.
>
> Anybody have a good script to convert files en-masse, without affecting
> other properties?
handbrake and avidemux both work on the commandline and will capably
convert to h264.
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mpeg4 on Ion ?
> Ack. Well, that saved me some trouble. I was planning on buying a Revo
> for a FE at some point, and most of my content has already been
> transcoded to MPEG4.
>
> Anybody have a good script to convert files en-masse, without affecting
> other properties?
> --
> Dan Wilga "Ook."
Well, the ION2 chips are out soon, including some nettops. I think its based on the GeForce G 210M which has the VP4 feature set, which has the MPEG4 decode.
So, if you can wait a bit, that might be the better option.
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mpeg4 on Ion ?
> Ack. Well, that saved me some trouble. I was planning on buying a Revo
> for a FE at some point, and most of my content has already been
> transcoded to MPEG4.
>
> Anybody have a good script to convert files en-masse, without affecting
> other properties?
> --
> Dan Wilga "Ook."
Well, the ION2 chips are out soon, including some nettops. I think its based on the GeForce G 210M which has the VP4 feature set, which has the MPEG4 decode.
So, if you can wait a bit, that might be the better option.
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mpeg4 on Ion ?
On Tue, Mar 2, 2010 at 11:53 AM, Travis Tabbal
wrote:
> MPEG4 in VDPAU is a quite new feature and I think it only works on the G2xx
> cards. I don't think the ION has the proper hardware for it. Transcode to
> h264, and it should work fine. I don't know if there is a default setting in
> Myth to do that though, you might have to set it up yourself.
You're right, the Ion has a 9400M and therefore doesn't support MPEG4 part 2.
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mpeg4 on Ion ?
On Tue, Mar 2, 2010 at 11:53 AM, Travis Tabbal
wrote:
> MPEG4 in VDPAU is a quite new feature and I think it only works on the G2xx
> cards. I don't think the ION has the proper hardware for it. Transcode to
> h264, and it should work fine. I don't know if there is a default setting in
> Myth to do that though, you might have to set it up yourself.
You're right, the Ion has a 9400M and therefore doesn't support MPEG4 part 2.
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mpeg4 on Ion ?
On Tue, Mar 2, 2010 at 11:53 AM, Travis Tabbal
wrote:
> MPEG4 in VDPAU is a quite new feature and I think it only works on the G2xx
> cards. I don't think the ION has the proper hardware for it. Transcode to
> h264, and it should work fine. I don't know if there is a default setting in
> Myth to do that though, you might have to set it up yourself.
Some (emphasis on the word SOME) members of the GeForce 8xxx card
family do support VDPAU. A list of which cards do/don't support VDPAU
can be seen here:
http://www.mythtv.org/wiki/NVidia_Cards
Colin McGregor
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mpeg4 on Ion ?
On Tue, Mar 2, 2010 at 11:53 AM, Travis Tabbal
wrote:
> MPEG4 in VDPAU is a quite new feature and I think it only works on the G2xx
> cards. I don't think the ION has the proper hardware for it. Transcode to
> h264, and it should work fine. I don't know if there is a default setting in
> Myth to do that though, you might have to set it up yourself.
Some (emphasis on the word SOME) members of the GeForce 8xxx card
family do support VDPAU. A list of which cards do/don't support VDPAU
can be seen here:
http://www.mythtv.org/wiki/NVidia_Cards
Colin McGregor
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mpeg4 on Ion ?
I've started playing around with transcoding shows to save
space. (The Olympics "challenged" my backend. :-) ) But it seems
that my Zotac Ion (single core) has trouble playing mpeg4.
(I assume its mpeg4. I picked it under "transcode from mpeg2",
its a .nuv file and mplayer says that it uses the ffmpeg mpeg4
codec.)
I was hoping to verify with other Ion users that they have the
same trouble, or maybe get some tips on getting the video to
play.
The symptoms were that video is jerky, and audio is a little
off and also jerky. myth was taking up 70-90% of the CPU.
(It plays mpeg2 flawlessly.)
I've played with various settings but most don't have any
affect. The biggest help was turning off the de-interlacer
entirely.
I was running version 190 of the driver. I upgraded to 195
and now Bob Costas sounds like he's on helium.
I had allocated only 256M of video memory. I upped this
to 512M with no improvement.
So, is there no way to play mpeg4 on one of these guys ?
Thanks!
_______________________________________________
mythtv-users mailing list
mythtv-users@mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users