Re: [maemo-developers] Ogg Vorbis and the N800 - Theora encoding
Am Montag, 12. Februar 2007 schrieb Kalle Vahlman: 2007/2/11, Krischan Keitsch [EMAIL PROTECTED]: After failing to combine theora and tremor I played with the n800 web cam. Theora encoding can be done by (as example) gst-launch-0.10 v4l2src ! ffmpegcolorspace ! video/x-raw-yuv,width=640,height=480,framerate=30/1 ! theoraenc bitrate=100 ! oggmux ! filesink location=target.ogg You might want to limit the framerate, at least if you plan on playing it back on the N800... ;) Well, playback is in fast forward mode then ;-) Do I need to add some kind of a 'timeoverlay' ? My guess would be that at that size and framerate the encoding is not keeping up with the stream. Do you see this with say [EMAIL PROTECTED] Thanks for the reply. This works better: gst-launch-0.10 v4l2src ! ffmpegcolorspace ! video/x-raw-yuv,width=160,height=120,framerat=10/1 ! theoraenc bitrate=100 ! oggmux ! filesink location=target.ogg As soon as I have some more spare time I might where the limits are concerning resolution, framerate and bitrate. Regards Krischan pgp5c3kITmc7T.pgp Description: PGP signature ___ maemo-developers mailing list maemo-developers@maemo.org https://maemo.org/mailman/listinfo/maemo-developers
Re: [maemo-developers] Ogg Vorbis and the N800 - Theora encoding
hi, Krischan Keitsch wrote: After failing to combine theora and tremor I played with the n800 web cam. Theora encoding can be done by (as example) gst-launch-0.10 v4l2src ! ffmpegcolorspace ! video/x-raw-yuv,width=640,height=480,framerate=30/1 ! theoraenc bitrate=100 ! oggmux ! filesink location=target.ogg Well, playback is in fast forward mode then ;-) Do I need to add some kind of a 'timeoverlay' ? Raw video encoding (I420) is done by gst-launch-0.10 v4l2src ! ffmpegcolorspace ! video/x-raw-yuv,width=352,height=288,framerate=30/1 ! avimux ! filesink location=target.avi Cpu usage is below 45%. Regards Krischan the camera supports only the following resolution SQCIF : width=128,height=96,framerate='(fraction)'15/1 QCIF : width=176,height=144,framerate='(fraction)'15/1 CIF : width=352,height=288,framerate='(fraction)'15/1 VGA : width=640,height=480,framerate='(fraction)'15/1 stefan ___ maemo-developers mailing list maemo-developers@maemo.org https://maemo.org/mailman/listinfo/maemo-developers
Re: [maemo-developers] Ogg Vorbis and the N800 - Theora encoding
After failing to combine theora and tremor I played with the n800 web cam. Theora encoding can be done by (as example) gst-launch-0.10 v4l2src ! ffmpegcolorspace ! video/x-raw-yuv,width=640,height=480,framerate=30/1 ! theoraenc bitrate=100 ! oggmux ! filesink location=target.ogg Well, playback is in fast forward mode then ;-) Do I need to add some kind of a 'timeoverlay' ? Raw video encoding (I420) is done by gst-launch-0.10 v4l2src ! ffmpegcolorspace ! video/x-raw-yuv,width=352,height=288,framerate=30/1 ! avimux ! filesink location=target.avi Cpu usage is below 45%. Regards Krischan pgp08s1TStqMY.pgp Description: PGP signature ___ maemo-developers mailing list maemo-developers@maemo.org https://maemo.org/mailman/listinfo/maemo-developers
Re: [maemo-developers] Ogg Vorbis and the N800 - Theora encoding
2007/2/11, Krischan Keitsch [EMAIL PROTECTED]: After failing to combine theora and tremor I played with the n800 web cam. Theora encoding can be done by (as example) gst-launch-0.10 v4l2src ! ffmpegcolorspace ! video/x-raw-yuv,width=640,height=480,framerate=30/1 ! theoraenc bitrate=100 ! oggmux ! filesink location=target.ogg You might want to limit the framerate, at least if you plan on playing it back on the N800... ;) Well, playback is in fast forward mode then ;-) Do I need to add some kind of a 'timeoverlay' ? My guess would be that at that size and framerate the encoding is not keeping up with the stream. Do you see this with say [EMAIL PROTECTED] -- Kalle Vahlman, [EMAIL PROTECTED] Powered by http://movial.fi Interesting stuff at http://syslog.movial.fi ___ maemo-developers mailing list maemo-developers@maemo.org https://maemo.org/mailman/listinfo/maemo-developers
Re: [maemo-developers] Ogg Vorbis and the N800 - Theora
Hi,
there is
http://bugzilla.gnome.org/show_bug.cgi?id=357055
which you could try.
Stefan
MoRpHeUz wrote:
Hi !
If it is possible to let the tremor plugin do the audiodecoding, what
would be the right gst-lanuch string?
Changing vorbisdec for tremor in that line doesnt work because tremor
expects application/ogg and vorbisdec expects audio/x-vorbis. So, the
line below doesnt work...
Gst gurus ? =P
gst-launch-0.10 gnomevfssrc location=http://localhost:8080 ! oggdemux
name=demuxer ! {queue ! theoradec ! xvimagesink} {demuxer.! queue !
tremor ! audioconvert ! dsppcmsink}
___
maemo-developers mailing list
maemo-developers@maemo.org
https://maemo.org/mailman/listinfo/maemo-developers
___
maemo-developers mailing list
maemo-developers@maemo.org
https://maemo.org/mailman/listinfo/maemo-developers
Re: [maemo-developers] Ogg Vorbis and the N800 - Theora
Am Samstag, 10. Februar 2007 schrieb Stefan Kost: Hi, there is http://bugzilla.gnome.org/show_bug.cgi?id=357055 which you could try. Stefan Hi Stefan I applied the patch. It compiled okay. However, gst-inspect will not register the tremor plug in anymore. Why is that? I also tried the low mem version of tremor. Same problem. Interesting: I used mplayer (which has tremor compiled in) to play a theora ogg file (video and audio file). Of course it coud not play the theora part. But mplayer was able to play the vorbis stream. Conclusion: The tremor implementation from mplayer is able to play vorbis streams. Siarhei did a great job porting and optimizing mplayer for 770 n800. Maybe he could add theora support to mpayer ? Regards Krischan pgpLPXTgh2Ibv.pgp Description: PGP signature ___ maemo-developers mailing list maemo-developers@maemo.org https://maemo.org/mailman/listinfo/maemo-developers
Re: [maemo-developers] Ogg Vorbis and the N800 - Theora
Hi Krischan, Krischan Keitsch wrote: Am Samstag, 10. Februar 2007 schrieb Stefan Kost: Hi, there is http://bugzilla.gnome.org/show_bug.cgi?id=357055 which you could try. Stefan Hi Stefan I applied the patch. It compiled okay. However, gst-inspect will not register the tremor plug in anymore. Why is that? Thanks for trying it. You can do: GST_DEBUG=GST_PLUGIN_LOADING:4 gst-inspect-0.10 I suspect there is a missing symbol. This will tell, although it needs a gstreamer core that is build using --enable-gst-debug. It's probably easier to try on x86. Stefan ___ maemo-developers mailing list maemo-developers@maemo.org https://maemo.org/mailman/listinfo/maemo-developers
Re: [maemo-developers] Ogg Vorbis and the N800 - Theora
Hi !
If it is possible to let the tremor plugin do the audiodecoding, what
would be the right gst-lanuch string?
Changing vorbisdec for tremor in that line doesnt work because tremor
expects application/ogg and vorbisdec expects audio/x-vorbis. So, the
line below doesnt work...
Gst gurus ? =P
gst-launch-0.10 gnomevfssrc location=http://localhost:8080 ! oggdemux
name=demuxer ! {queue ! theoradec ! xvimagesink} {demuxer.! queue !
tremor ! audioconvert ! dsppcmsink}
___
maemo-developers mailing list
maemo-developers@maemo.org
https://maemo.org/mailman/listinfo/maemo-developers
Re: [maemo-developers] Ogg Vorbis and the N800 - Theora
Am Donnerstag, 8. Februar 2007 schrieb MoRpHeUz:
This ogg files you're playing contain video ? I was just able to play
audio until now...
Best Regards,
MoRpHeUz
Yes, I also build the theora plugin.
I did a short test this morning:
Theora and vorbis on n800
I transcoded the Discovery.avi with ffmpeg2theora with the default settings.
Theora video:
352x208
1) theora video only
gst-launch-0.10 filesrc location=Discovery.ogg ! oggdemux ! theoradec !
xvimagesink
cpu: ~45%
The theora video is beeing played in a window not full screen. The video
playback is good. No skips. :-) Looks promissing. I will try some higher
resolutions frame rates soon.
2) theora video and vfp-vorbis decoding
gst-launch-0.10 filesrc location=Discovery.ogg ! oggdemux name=demuxer !
{queue ! theoradec ! xvimagesink} {demuxer.!queue ! vorbisdec !
audioconvert ! dsppcmsink}
cpu: ~ 80 (45% 35%)
Vorbis playback using the vfp causes ~35% cpu. Theora decoding is like in 1).
It adds up to ~80% and I experienced many skips. Playback is not in sync,
halts, skips ... :-(
However when I try to use tremor (just takes ~12% cpu) based audio decoding I
am out of luck.
If it is possible to let the tremor plugin do the audiodecoding, what would be
the right gst-lanuch string?
I need some advice from you gst gurus!
Regards Krischan
PS: 770 n800 are not _just_ internet tablets. They are a hell of a
multimedia device. The more time I spend using my n800 and 770 the more
impressed I get!
pgpCSuGuqoqCU.pgp
Description: PGP signature
___
maemo-developers mailing list
maemo-developers@maemo.org
https://maemo.org/mailman/listinfo/maemo-developers
Re: [maemo-developers] Ogg Vorbis and the N800 - Theora
Krischan,
Can you provide the theora plugin for us, so I can do some tests also ?
If we could use theora for video decoding and tremor for audio
decoding would be wonderful ! =) We just need to make it (theora) also
use vfp...
Doing that we will be able to watch some streaming without the need of
mplayer...
MoRpHeUz
PS: I can help you with tests and buildings...I'm online all day
([EMAIL PROTECTED] and at #maemo)
On 2/8/07, Krischan Keitsch [EMAIL PROTECTED] wrote:
Am Donnerstag, 8. Februar 2007 schriKrischan KeitsKrischan Keits eb MoRpHeUz:
This ogg files you're playing contain video ? I was just able to play
audio until now...
Best Regards,
MoRpHeUz
Yes, I also build the theora plugin.
I did a short test this morning:
Theora and vorbis on n800
I transcoded the Discovery.avi with ffmpeg2theora with the default settings.
Theora video:
352x208
1) theora video only
gst-launch-0.10 filesrc location=Discovery.ogg ! oggdemux ! theoradec !
xvimagesink
cpu: ~45%
The theora video is beeing played in a window not full screen. The video
playback is good. No skips. :-) Looks promissing. I will try some higher
resolutions frame rates soon.
2) theora video and vfp-vorbis decoding
gst-launch-0.10 filesrc location=Discovery.ogg ! oggdemux name=demuxer !
{queue ! theoradec ! xvimagesink} {demuxer.!queue ! vorbisdec !
audioconvert ! dsppcmsink}
cpu: ~ 80 (45% 35%)
Vorbis playback using the vfp causes ~35% cpu. Theora decoding is like in 1).
It adds up to ~80% and I experienced many skips. Playback is not in sync,
halts, skips ... :-(
However when I try to use tremor (just takes ~12% cpu) based audio decoding I
am out of luck.
If it is possible to let the tremor plugin do the audiodecoding, what would be
the right gst-lanuch string?
I need some advice from you gst gurus!
Regards Krischan
PS: 770 n800 are not _just_ internet tablets. They are a hell of a
multimedia device. The more time I spend using my n800 and 770 the more
impressed I get!
___
maemo-developers mailing list
maemo-developers@maemo.org
https://maemo.org/mailman/listinfo/maemo-developers
___
maemo-developers mailing list
maemo-developers@maemo.org
https://maemo.org/mailman/listinfo/maemo-developers
Re: [maemo-developers] Ogg Vorbis and the N800 - Theora
Am Donnerstag, 8. Februar 2007 schrieb MoRpHeUz:
Krischan,
Can you provide the theora plugin for us, so I can do some tests also ?
Of course I could, but Simon Pickering already wrapped the plugins up to a
archiv:
http://people.bath.ac.uk/enpsgp/temp/vorbis-stuff.tar.gz
Since we used the same compiler flags it should be the same.
If we could use theora for video decoding and tremor for audio
decoding would be wonderful ! =) We just need to make it (theora) also
use vfp...
I don't know what the theora plug in is using. I guess it also uses the vfp
yet. My intention was to use tremor for audio decoding since it uses less cpu
cycles than the floating point vorbis plugin. I just did't figure out the
right gst-launch syntax yet.
Doing that we will be able to watch some streaming without the need of
mplayer...
The mogg people integrated the tremor plug-in into the audio player on the 770
just perfect. As soon as we know more about a working combination betwen
theora and tremor we could ask them for help :-)
MoRpHeUz
PS: I can help you with tests and buildings...I'm online all day
([EMAIL PROTECTED] and at #maemo)
More testing would be good.
I wish I had more time. Too bad I have to work for food ;-)
Krischan
On 2/8/07, Krischan Keitsch [EMAIL PROTECTED] wrote:
Am Donnerstag, 8. Februar 2007 schriKrischan KeitsKrischan Keits eb
MoRpHeUz:
This ogg files you're playing contain video ? I was just able to play
audio until now...
Best Regards,
MoRpHeUz
Yes, I also build the theora plugin.
I did a short test this morning:
Theora and vorbis on n800
I transcoded the Discovery.avi with ffmpeg2theora with the default
settings.
Theora video:
352x208
1) theora video only
gst-launch-0.10 filesrc location=Discovery.ogg ! oggdemux ! theoradec !
xvimagesink
cpu: ~45%
The theora video is beeing played in a window not full screen. The video
playback is good. No skips. :-) Looks promissing. I will try some higher
resolutions frame rates soon.
2) theora video and vfp-vorbis decoding
gst-launch-0.10 filesrc location=Discovery.ogg ! oggdemux name=demuxer !
{queue ! theoradec ! xvimagesink} {demuxer.!queue ! vorbisdec !
audioconvert ! dsppcmsink}
cpu: ~ 80 (45% 35%)
Vorbis playback using the vfp causes ~35% cpu. Theora decoding is like in
1). It adds up to ~80% and I experienced many skips. Playback is not in
sync, halts, skips ... :-(
However when I try to use tremor (just takes ~12% cpu) based audio
decoding I am out of luck.
If it is possible to let the tremor plugin do the audiodecoding, what
would be the right gst-lanuch string?
I need some advice from you gst gurus!
Regards Krischan
PS: 770 n800 are not _just_ internet tablets. They are a hell of a
multimedia device. The more time I spend using my n800 and 770 the more
impressed I get!
pgp0g8zEg5Yv7.pgp
Description: PGP signature
___
maemo-developers mailing list
maemo-developers@maemo.org
https://maemo.org/mailman/listinfo/maemo-developers
Re: [maemo-developers] Ogg Vorbis and the N800 - Theora
Of course I could, but Simon Pickering already wrapped the plugins up to a
archiv:
http://people.bath.ac.uk/enpsgp/temp/vorbis-stuff.tar.gz
Since we used the same compiler flags it should be the same.
That's perfect, already downloaded it! =)
cycles than the floating point vorbis plugin. I just did't figure out the
right gst-launch syntax yet.
I'll ask some people here at work to try a gst-launch syntax so we can
try this...
The mogg people integrated the tremor plug-in into the audio player on the 770
just perfect. As soon as we know more about a working combination betwen
theora and tremor we could ask them for help :-)
Perfect =)
More testing would be good.
I wish I had more time. Too bad I have to work for food ;-)
Well, my work depends on this, so...I'm working for food right now ahaha =P
Best regards,
On 2/8/07, Krischan Keitsch [EMAIL PROTECTED] wrote:
Am Donnerstag, 8. Februar 2007 schriKrischan KeitsKrischan Keits eb
MoRpHeUz:
This ogg files you're playing contain video ? I was just able to play
audio until now...
Best Regards,
MoRpHeUz
Yes, I also build the theora plugin.
I did a short test this morning:
Theora and vorbis on n800
I transcoded the Discovery.avi with ffmpeg2theora with the default
settings.
Theora video:
352x208
1) theora video only
gst-launch-0.10 filesrc location=Discovery.ogg ! oggdemux ! theoradec !
xvimagesink
cpu: ~45%
The theora video is beeing played in a window not full screen. The video
playback is good. No skips. :-) Looks promissing. I will try some higher
resolutions frame rates soon.
2) theora video and vfp-vorbis decoding
gst-launch-0.10 filesrc location=Discovery.ogg ! oggdemux name=demuxer !
{queue ! theoradec ! xvimagesink} {demuxer.!queue ! vorbisdec !
audioconvert ! dsppcmsink}
cpu: ~ 80 (45% 35%)
Vorbis playback using the vfp causes ~35% cpu. Theora decoding is like in
1). It adds up to ~80% and I experienced many skips. Playback is not in
sync, halts, skips ... :-(
However when I try to use tremor (just takes ~12% cpu) based audio
decoding I am out of luck.
If it is possible to let the tremor plugin do the audiodecoding, what
would be the right gst-lanuch string?
I need some advice from you gst gurus!
Regards Krischan
PS: 770 n800 are not _just_ internet tablets. They are a hell of a
multimedia device. The more time I spend using my n800 and 770 the more
impressed I get!
___
maemo-developers mailing list
maemo-developers@maemo.org
https://maemo.org/mailman/listinfo/maemo-developers
___
maemo-developers mailing list
maemo-developers@maemo.org
https://maemo.org/mailman/listinfo/maemo-developers
