hot to use multipass-mode on theoraenc?

[Alexey Fisher]

Hallo all,
please can any one point me how to use multipass-mode on theoraenc or
vp8enc? I can't find it anywhere.

--
Regards,
        Alexey


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[Sebastian Dröge-7]

On Sun, 2010-11-14 at 11:54 +0100, Alexey Fisher wrote:
> Hallo all,
> please can any one point me how to use multipass-mode on theoraenc or
> vp8enc? I can't find it anywhere.

You have to set the multipass-cache-file property to some filename,
which is used to store the statistics of the first pass and then use
that same filename for the second pass.

E.g.

gst-launch-0.10 videotestsrc num-buffers=1000 ! theoraenc
multipass-cache-file=/tmp/bla multipass-mode=first-pass ! oggmux !
filesink location=test.ogg

gst-launch-0.10 videotestsrc num-buffers=1000 ! theoraenc
multipass-cache-file=/tmp/bla multipass-mode=second-pass ! oggmux !
filesink location=test.ogg

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[Brian Michalk]

I'm trying to use variations on the nuvdemux node, but it seems that I
just can't get a sample video to play from a MythTV file.

I've tried the following:
gst-launch -v filesrc location=fname.nuv ! nuvdemux name=demux  
demux.audio_00 ! decodebin ! audioconvert ! audioresample !
autoaudiosink   demux.video_00 ! queue ! decodebin ! ffmpegcolorspace !
videoscale ! autovideosink

gst-launch -v filesrc location=fname.nuv ! nuvdemux name=demux  
demux.audio_00 ! autoaudiosink   demux.video_00 ! queue ! decodebin !
ffmpegcolorspace ! videoscale ! autovideosink

gst-launch -v filesrc location=fname.nuv ! nuvdemux name=demux  
demux.audio_00 ! autoaudiosink   demux.video_00 ! autovideosink

gst-launch -v filesrc location=fname.nuv ! playbin

gst-launch -v filesrc location=fname.nuv ! playbin2

gst-launch -v playbin2 uri=file://./fname.nuv


I have tried a few different files.  Perhaps there's some error common
to all of my files?  I can play them in VLC just fine, but on my N900, I
can't seek, which is why I want to transcode them.

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[Marco Ballesio]

Hi,

On 11/14/10, Brian Michalk <[hidden email]> wrote:
> I'm trying to use variations on the nuvdemux node, but it seems that I
> just can't get a sample video to play from a MythTV file.
>

it's not clear what you're trying to do. All of the pipelines you've
posted are about playback, but below you say you're trying to
transcode (actually maybe you want to do something like transmux). Can
you please clarify?

Regards

> I've tried the following:
> gst-launch -v filesrc location=fname.nuv ! nuvdemux name=demux
> demux.audio_00 ! decodebin ! audioconvert ! audioresample !
> autoaudiosink   demux.video_00 ! queue ! decodebin ! ffmpegcolorspace !
> videoscale ! autovideosink
>
> gst-launch -v filesrc location=fname.nuv ! nuvdemux name=demux
> demux.audio_00 ! autoaudiosink   demux.video_00 ! queue ! decodebin !
> ffmpegcolorspace ! videoscale ! autovideosink
>
> gst-launch -v filesrc location=fname.nuv ! nuvdemux name=demux
> demux.audio_00 ! autoaudiosink   demux.video_00 ! autovideosink
>
> gst-launch -v filesrc location=fname.nuv ! playbin
>
> gst-launch -v filesrc location=fname.nuv ! playbin2
>
> gst-launch -v playbin2 uri=file://./fname.nuv
>
>
> I have tried a few different files.  Perhaps there's some error common
> to all of my files?  I can play them in VLC just fine, but on my N900, I
> can't seek, which is why I want to transcode them.
>
> ------------------------------------------------------------------------------
> Centralized Desktop Delivery: Dell and VMware Reference Architecture
> Simplifying enterprise desktop deployment and management using
> Dell EqualLogic storage and VMware View: A highly scalable, end-to-end
> client virtualization framework. Read more!
> http://p.sf.net/sfu/dell-eql-dev2dev
> _______________________________________________
> gstreamer-devel mailing list
> [hidden email]
> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>

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[Brian Michalk]

I figured if I can make the playback work, then transcode would be
simple.  I think I might have something wrong in my installation, which
I can try today.

On 11/19/2010 9:15 AM, Marco Ballesio wrote:

> Hi,
>
> On 11/14/10, Brian Michalk<[hidden email]>  wrote:
>> I'm trying to use variations on the nuvdemux node, but it seems that I
>> just can't get a sample video to play from a MythTV file.
>>
> it's not clear what you're trying to do. All of the pipelines you've
> posted are about playback, but below you say you're trying to
> transcode (actually maybe you want to do something like transmux). Can
> you please clarify?
>
> Regards
>
>> I've tried the following:
>> gst-launch -v filesrc location=fname.nuv ! nuvdemux name=demux
>> demux.audio_00 ! decodebin ! audioconvert ! audioresample !
>> autoaudiosink   demux.video_00 ! queue ! decodebin ! ffmpegcolorspace !
>> videoscale ! autovideosink
>>
>> gst-launch -v filesrc location=fname.nuv ! nuvdemux name=demux
>> demux.audio_00 ! autoaudiosink   demux.video_00 ! queue ! decodebin !
>> ffmpegcolorspace ! videoscale ! autovideosink
>>
>> gst-launch -v filesrc location=fname.nuv ! nuvdemux name=demux
>> demux.audio_00 ! autoaudiosink   demux.video_00 ! autovideosink
>>
>> gst-launch -v filesrc location=fname.nuv ! playbin
>>
>> gst-launch -v filesrc location=fname.nuv ! playbin2
>>
>> gst-launch -v playbin2 uri=file://./fname.nuv
>>
>>
>> I have tried a few different files.  Perhaps there's some error common
>> to all of my files?  I can play them in VLC just fine, but on my N900, I
>> can't seek, which is why I want to transcode them.
>>
>> ------------------------------------------------------------------------------
>> Centralized Desktop Delivery: Dell and VMware Reference Architecture
>> Simplifying enterprise desktop deployment and management using
>> Dell EqualLogic storage and VMware View: A highly scalable, end-to-end
>> client virtualization framework. Read more!
>> http://p.sf.net/sfu/dell-eql-dev2dev
>> _______________________________________________
>> gstreamer-devel mailing list
>> [hidden email]
>> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>>
> ------------------------------------------------------------------------------
> Beautiful is writing same markup. Internet Explorer 9 supports
> standards for HTML5, CSS3, SVG 1.1,  ECMAScript5, and DOM L2&  L3.
> Spend less time writing and  rewriting code and more time creating great
> experiences on the web. Be a part of the beta today
> http://p.sf.net/sfu/msIE9-sfdev2dev
> _______________________________________________
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> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel

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