[MPlayer-dvb] how do we access the video decoder memory

[Suresh S]

Hi,

I cannot get any reply for my querry. Could you please give some idea.

"
Using Linux DVB, how do we access the video decoder memory(h/w decoder) for getting the video frames. Can we do by DMA transfer? 
"

-SSMadurai


On Thu, 03 May 2007 mplayer-dvb-request at mplayerhq.hu wrote :
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>Today's Topics:
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>    1. Accessing video decoder memory... (Suresh  S)
>    2. Re: MPlayer-dvb Digest, Vol 44, Issue 1 (Suresh  S)
>    3. Re: MPlayer-dvb Digest, Vol 44, Issue 1 (Nico Sabbi)
>
>
>----------------------------------------------------------------------
>
>Message: 1
>Date: 2 May 2007 13:20:25 -0000
> From: "Suresh  S" <ssureshmsc at rediffmail.com>
>Subject: [MPlayer-dvb] Accessing video decoder memory...
>To: mplayer-dvb at mplayerhq.hu
>Message-ID: <20070502132025.17857.qmail at webmail52.rediffmail.com>
>Content-Type: text/plain;	charset=iso-8859-1
>
>  ?
>Hi,
>
>Using Linux DVB, how do we access the video decoder memory(h/w decoder) for getting the video frames. Can we do by DMA transfer?
>
>-SSMadurai
>
>
>
>------------------------------
>
>Message: 2
>Date: 2 May 2007 15:16:00 -0000
> From: "Suresh  S" <ssureshmsc at rediffmail.com>
>Subject: Re: [MPlayer-dvb] MPlayer-dvb Digest, Vol 44, Issue 1
>To: mplayer-dvb at mplayerhq.hu
>Message-ID: <20070502151600.20793.qmail at webmail60.rediffmail.com>
>Content-Type: text/plain;	charset=iso-8859-1
>
>Hi,
>
>Using Linux DVB API version 3, I want to access the video decoder memory(h/w decoder) for getting the video frames. I am using Linux DVB API version 3, so I cant use v4l as well for this.
>
>Could you please give me idea to fetch the decoder memroy.
>
>Thanks
>-SSMadurai
>
>  ?
>
>
>On Wed, 02 May 2007 mplayer-dvb-request at mplayerhq.hu wrote :
> >Send MPlayer-dvb mailing list submissions to
> > 	mplayer-dvb at mplayerhq.hu
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> >or, via email, send a message with subject or body 'help' to
> > 	mplayer-dvb-request at mplayerhq.hu
> >
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> >
> >When replying, please edit your Subject line so it is more specific
> >than "Re: Contents of MPlayer-dvb digest..."
> >
> >
> >Today's Topics:
> >
> >    1. Accessing video decoder memory... (Suresh  S)
> >    2. Re: Accessing video decoder memory... (Nico Sabbi)
> >    3. Re: Accessing video decoder memory... (Nico Sabbi)
> >
> >
> >----------------------------------------------------------------------
> >
> >Message: 1
> >Date: 1 May 2007 18:31:46 -0000
> > From: "Suresh  S" <ssureshmsc at rediffmail.com>
> >Subject: [MPlayer-dvb] Accessing video decoder memory...
> >To: mplayer-dvb at mplayerhq.hu
> >Message-ID: <20070501183146.21957.qmail at webmail46.rediffmail.com>
> >Content-Type: text/plain;	charset=iso-8859-1
> >
> >Hi,
> >
> >Using Linux DVB, I want to access the video decoder memory(h/w decoder) for getting the video frames. Can we do by DMA transfer?
> >
> >-SSMadurai
> >
> >
> >
> >------------------------------
> >
> >Message: 2
> >Date: Tue, 01 May 2007 20:46:27 +0200
> > From: Nico Sabbi <nicola_sabbi at fastwebnet.it>
> >Subject: Re: [MPlayer-dvb] Accessing video decoder memory...
> >To: Suresh S <ssureshmsc at rediffmail.com>, 	MPlayer with Siemens DVB
> > 	cards <mplayer-dvb at mplayerhq.hu>
> >Message-ID: <46378B03.7000503 at fastwebnet.it>
> >Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> >
> >Suresh S wrote:
> > > Hi,
> > >
> > > Using Linux DVB, I want to access the video decoder memory(h/w decoder) for getting the video frames. Can we do by DMA transfer?
> > >
> > > -SSMadurai
> > >
> >
> >when using the hw decoder you can use the v4l api to access the
> >decoded frames (e.g. mplayer tv://)
> >
> >
> >------------------------------
> >
> >Message: 3
> >Date: Wed, 02 May 2007 00:35:33 +0200
> > From: Nico Sabbi <nicola_sabbi at fastwebnet.it>
> >Subject: Re: [MPlayer-dvb] Accessing video decoder memory...
> >To: Mplayer with Siemens-DVB card <mplayer-dvb at mplayerhq.hu>
> >Message-ID: <4637C0B5.4020806 at fastwebnet.it>
> >Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> >
> >Suresh S wrote:
> > > Thanks for your reply.
> > >
> > > Can you give me some examples and which api need to use ?
> > >
> > > -SSmadurai.
> > >
> >
> >stream/tv*.c
> >
> >
> >------------------------------
> >
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> >End of MPlayer-dvb Digest, Vol 44, Issue 1
> >******************************************
>
>
>
>
>------------------------------
>
>Message: 3
>Date: Wed, 02 May 2007 17:17:38 +0200
> From: Nico Sabbi <nsabbi at email.it>
>Subject: Re: [MPlayer-dvb] MPlayer-dvb Digest, Vol 44, Issue 1
>To: MPlayer with Siemens DVB cards <mplayer-dvb at mplayerhq.hu>
>Message-ID: <4638AB92.4040203 at email.it>
>Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
>Suresh S wrote:
>
> >Hi,
> >
> >Using Linux DVB API version 3, I want to access the video decoder memory(h/w decoder) for getting the video frames. I am using Linux DVB API version 3, so I cant use v4l as well for this.
> >
> >Could you please give me idea to fetch the decoder memroy.
> >
> >Thanks
> >-SSMadurai
> >
> >
> >
> >
>why don't you re-read what I wrote before posting 3 times the same
>question??
>with  the DVB api you can tune the card and instruct the hw decoders to
>do their job.
>At the same time you can use the V4L api to access the decoder's frame
>buffer
>and grab the decoded frames.
>e.g.
>
>on one terminal:
>$ tzap -r RaiUno
>on another terminal:
>$ mplayer tv:// -tv ....
>
>There's really nothing else to do. In mplayer/stream there is code to access
>both  the dvb device proper and the tv devices.
>
>
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