[gst-devel] gstreamer-devel Digest, Vol 43, Issue 49
sreerenj b
bsreerenj at gmail.com
Thu Dec 31 20:22:47 CET 2009
On Thu, Dec 31, 2009 at 1:16 PM, <
gstreamer-devel-request at lists.sourceforge.net> wrote:
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> Today's Topics:
>
> 1. Re: gstreamer-devel Digest, Vol 43, Issue 47 (sreerenj b)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 31 Dec 2009 13:15:51 +0530
> From: sreerenj b <bsreerenj at gmail.com>
> Subject: Re: [gst-devel] gstreamer-devel Digest, Vol 43, Issue 47
> To: gstreamer-devel at lists.sourceforge.net
> Message-ID:
> <c3376b410912302345k2255cf73y70f7419e71ea9859 at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> On Wed, Dec 30, 2009 at 11:36 PM, <
> gstreamer-devel-request at lists.sourceforge.net> wrote:
>
> > Send gstreamer-devel mailing list submissions to
> > gstreamer-devel at lists.sourceforge.net
> >
> > To subscribe or unsubscribe via the World Wide Web, visit
> > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
> > or, via email, send a message with subject or body 'help' to
> > gstreamer-devel-request at lists.sourceforge.net
> >
> > You can reach the person managing the list at
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> >
> > When replying, please edit your Subject line so it is more specific
> > than "Re: Contents of gstreamer-devel digest..."
> >
> >
> > Today's Topics:
> >
> > 1. trouble with playbin2 and audio track (kitone)
> > 2. Re: level element in playbin2 (Stefan Kost)
> > 3. Re: gstreamer clock (Stefan Kost)
> > 4. Re: gstreamer in a non-multimedia area? (Stefan Kost)
> > 5. H.264 decoder sink problem (ananthula.madhu at wipro.com)
> > 6. Re: gstreamer in a non-multimedia area? (Leonardo Sandoval)
> > 7. Re: Playbin2 and Audio-CDs (regomodo)
> >
> >
> > ----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Wed, 30 Dec 2009 13:18:54 +0100
> > From: kitone <kitone at free.fr>
> > Subject: [gst-devel] trouble with playbin2 and audio track
> > To: gstreamer-devel at lists.sourceforge.net
> > Message-ID: <20091230131854.0c177421 at free.fr>
> > Content-Type: text/plain; charset=US-ASCII
> >
> > Hi everyone,
> >
> > I'm using playbin2 to play video and I've add the ability to change
> > audio track in the player. This doesn't work very well. When I switch
> > to an other track there's little problem like no sound, need to seek to
> > have sound again or some little freeze.
> >
> > So there's a best way to change track ?
> >
> > Do I need to define the state of the pipeline to PAUSED, change the
> > audio track and replay again ? Or can I do this on the fly ?
> >
> > code :
> > void Player::set_current_audio(int track) {
> > g_object_set (playbin, "current-audio", track, NULL);
> > }
> >
> > Best regards,
> > kitone
> >
> >
> >
> > ------------------------------
> >
> > Message: 2
> > Date: Wed, 30 Dec 2009 16:30:15 +0200
> > From: Stefan Kost <ensonic at hora-obscura.de>
> > Subject: Re: [gst-devel] level element in playbin2
> > To: Discussion of the development of GStreamer
> > <gstreamer-devel at lists.sourceforge.net>
> > Message-ID: <4B3B63F7.9030601 at hora-obscura.de>
> > Content-Type: text/plain; charset=ISO-8859-1
> >
> > hi,
> >
> > Am 28.12.2009 14:34, schrieb J. Rios:
> > > Hello,
> > > Im tryign to incorporate the level element into a playbin2. This is
> > > the significant part of what I have tried
> > >
> > > GstElement * outputsink;
> > > outputsink = gst_element_factory_make( "gconfaudiosink",
> "audio-sink"
> > );
> > > ...
> > > GstElement * m_Playbin = gst_element_factory_make( "playbin2",
> "play"
> > );
> > > ...
> > > GstElement * level = gst_element_factory_make( "level", "levelctrl"
> > );
> > >
> > > GstElement * replay = gst_element_factory_make( "rgvolume",
> > > "replaygain" );
> > >
> > >
> > > gst_bin_add( GST_BIN( m_Playbin ), level );
> > > gst_bin_add( GST_BIN( m_Playbin ), replay );
> > > g_object_set( G_OBJECT( m_Playbin ), "audio-sink", outputsink, NULL
> > );
> > >
> > > g_object_set( level, "message", true, NULL );
> > >
> > > g_object_set( G_OBJECT( m_Playbin ), "flags", 0x02|0x10, NULL );
> > >
> > > gst_bus_add_watch( gst_pipeline_get_bus( GST_PIPELINE( m_Playbin )
> ),
> > > ( GstBusFunc ) gst_bus_async_callback, this );
> > >
> > >
> > this cannot work as such. The elements need to be linked in the right
> > order.
> > What you need to do, is to create an own bin, add level, replay and the
> > audiosink there, link them and set your bin as the audiosink. You need to
> > add a
> > ghostpad to the bin and set it to the first (yet unlinked) sink pad of
> you
> > elements.
> >
> > Stefan
> >
> >
> > > The problem I have is that I dont get the Element messages. All the
> rest
> > > works fine including the replay-gain volumen but I dont get the level
> > > messages in the callback function.
> > > What I want to do is detect when the sound level is below an user
> > > defined level so I can skip to next track.
> > >
> > > I dunno if this is the correct place to put it but I have been tryign
> to
> > > search for this with no success. Please if u know what is wrong or how
> > > it should work let me know
> > >
> > > Thanks in advance
> > > J.Rios
> > >
> > >
> > >
> > >
> >
> ------------------------------------------------------------------------------
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> > >
> > >
> > > _______________________________________________
> > > gstreamer-devel mailing list
> > > gstreamer-devel at lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
> >
> >
> >
> >
> > ------------------------------
> >
> > Message: 3
> > Date: Wed, 30 Dec 2009 16:33:26 +0200
> > From: Stefan Kost <ensonic at hora-obscura.de>
> > Subject: Re: [gst-devel] gstreamer clock
> > To: Discussion of the development of GStreamer
> > <gstreamer-devel at lists.sourceforge.net>
> > Cc: sreerenj b <bsreerenj at gmail.com>
> > Message-ID: <4B3B64B6.3020401 at hora-obscura.de>
> > Content-Type: text/plain; charset=ISO-8859-1
> >
> > Am 30.12.2009 08:19, schrieb sreerenj b:
> > >
> > > HI,
> > >
> > > Is there any way to get some signal or tick from the pipeline depending
> > > upon the data transferd?(For example, suppose if i change the streaming
> > > server playback rate to twice the actual rate,then i should needs to
> get
> > > some identification from pipeline in each second or in some periodic
> > > manner.)
> >
> > You could use gst_clock_new_periodic_id() together with a
> > gst_clock_id_wait() or
> > gst_clock_id_wait_async()
> >
> > Stefan
> >
> > > --
> > > Sreerenj B
> > > bsreerenj at gmail.com <mailto:bsreerenj at gmail.com>
> > > mob: +91 9739469496
> > >
> > >
> >
>
>
Hi ,
I captured the GstClockID of the pipeline in streaming-server
*
id=gst_clock_new_periodic_id(media->media->pipeline->clock,start_time,interval);
*And then setted up the asynchronous callback using the following.
*gst_clock_id_wait_async(id,(GstClockCallback *)TickCallback,"Tick
sending");*
but evenif i "stopped" or "paused" the client side player , i am getting
the callback " TickCallback" in the server side on specified
intervals!!!!!!! I take the clock of the pipeline currently running, but why
i am getting this call back even i stopped the pipeline?Is there any way to
rectify this?
I setted up these settings in *
gst-rtsp-server/gst/rtsp-server/rtsp-client.c* ...inside the
*handle_play()*function.
> sreerenj
>
>
>
> > >
> > >
> >
> ------------------------------------------------------------------------------
> > > This SF.Net email is sponsored by the Verizon Developer Community
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> > >
> > >
> > > _______________________________________________
> > > gstreamer-devel mailing list
> > > gstreamer-devel at lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
> >
> >
> >
> >
> > ------------------------------
> >
> > Message: 4
> > Date: Wed, 30 Dec 2009 16:36:37 +0200
> > From: Stefan Kost <ensonic at hora-obscura.de>
> > Subject: Re: [gst-devel] gstreamer in a non-multimedia area?
> > To: Discussion of the development of GStreamer
> > <gstreamer-devel at lists.sourceforge.net>
> > Cc: Leonardo Sandoval <leonardo_gdl at yahoo.com.mx>
> > Message-ID: <4B3B6575.1020707 at hora-obscura.de>
> > Content-Type: text/plain; charset=ISO-8859-1
> >
> > hi,
> >
> > Am 29.12.2009 18:18, schrieb Leonardo Sandoval:
> > > Hi,
> > >
> > > In the past, I worked in a project which consists of joining together
> > several numerical codes (codes which solve some particular physic
> problem,
> > like stars gravity or star mass evolution) in a single one, but this
> turned
> > to be a very difficult problem due to different language/technologies.
> > >
> > > Recently, I moved to the multimedia field using gstreamer and seems to
> > be an excellent and natural 'glue' to put several things together under a
> > single framework. Before I can dig deeper on this, I have a simple
> question:
> > in the case of galaxy dynamics, we are not talking about frames but
> > 'snapshots', where each snapshot contains the information of each star
> > inside a galaxy (mass, position, velocity, gas composition, etc.), i.e.
> the
> > state of the galaxy at some time.
> > >
> > > I know that gstreamer does not care about the kind of data flowing, I
> > just want to know if gstreamer has been used in other fields rather than
> > multimedia and if yes, which has been the experienced with this
> technology.
> > >
> >
> > I am quite sure it can be done. WHat I wonder is how gstreamer might help
> > you.
> > For multimedia it gives you data flow synchronisation and format
> > negotiation
> > (and other things). I am not sure you would need those. What would be
> left
> > is
> > the plugin framework and some developments support.
> >
> > >
> > > Happy new year!
> > >
> > Same to you.
> >
> > Stefan
> > >
> > >
> > > Encuentra las mejores recetas en Yahoo! Cocina.
> > > http://mx.mujer.yahoo.com/cocina/
> > >
> > >
> >
> ------------------------------------------------------------------------------
> > > This SF.Net email is sponsored by the Verizon Developer Community
> > > Take advantage of Verizon's best-in-class app development support
> > > A streamlined, 14 day to market process makes app distribution fast and
> > easy
> > > Join now and get one step closer to millions of Verizon customers
> > > http://p.sf.net/sfu/verizon-dev2dev
> > > _______________________________________________
> > > gstreamer-devel mailing list
> > > gstreamer-devel at lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
> >
> >
> >
> >
> > ------------------------------
> >
> > Message: 5
> > Date: Wed, 30 Dec 2009 20:15:13 +0530
> > From: <ananthula.madhu at wipro.com>
> > Subject: [gst-devel] H.264 decoder sink problem
> > To: <gstreamer-devel at lists.sourceforge.net>
> > Message-ID:
> > <9833F736BF212D438BF4F998F697E4D01C0B0E at BLR-SJP-MBX02.wipro.com>
> > Content-Type: text/plain; charset="us-ascii"
> >
> > Hi ,
> > I am developing H264 decoder plugin. In my current pipeline i
> > took filesrc, myplugin and autovideosink elements.
> > i was able to decode the .H264 input file but i am not able to view the
> > video on sink side. The decoded data by writing into a file and able to
> > run with yuv tool. but through sink i am not able to. Could anyone
> > suggest what output buffer should i create and which capabilities need i
> > to set?
> >
> > Please its urgent...
> >
> > Thanks & Regards
> > Mohan Reddy
> >
> > -------------- next part --------------
> > An HTML attachment was scrubbed...
> >
> > ------------------------------
> >
> > Message: 6
> > Date: Wed, 30 Dec 2009 09:14:38 -0800 (PST)
> > From: Leonardo Sandoval <leonardo_gdl at yahoo.com.mx>
> > Subject: Re: [gst-devel] gstreamer in a non-multimedia area?
> > To: Discussion of the development of GStreamer
> > <gstreamer-devel at lists.sourceforge.net>, Stefan Kost
> > <ensonic at hora-obscura.de>
> > Message-ID: <543562.52056.qm at web50708.mail.re2.yahoo.com>
> > Content-Type: text/plain; charset=iso-8859-1
> >
> > I think may be gstreamer a good option at least for those two reasons you
> > mentioned:
> >
> > * Syncronisation: for example, in a galaxy evolution, several physics
> > (gravitation, star evolution, etc.) are occurring at the same time, so we
> > need syncronisation to control these computations.
> >
> > * format negotiation: currently, different codes outputs different data
> > formats so most of the time the output of one program has to be converted
> in
> > order to be the input of another program. Using standard formats
> specified
> > in the pads/caps, these can be avoided, I believe.
> >
> > However, there is one problem. In a multimedia, we have all the data to
> be
> > reproduced (encoded,decoded,etc) but in this case, starting from an
> initial
> > snapshot (initial conditions) an new snapshot is produced (the snapshot
> at
> > time t_0 + delta), then the latter is used to create the snapshot t_0 +
> > 2*delta, etc, and I believe in gstreamer it is not possible that the
> output
> > of a right element is the input of a left element, like in this diagram:
> >
> > ________ ________ _______
> > | | | | | |
> > --|->---| |----- | |------| |--->---|
> > | |________| |________| |_______| |
> > | |
> > |-----------------------------------------------------|
> > Ing. Leonardo SandovalCel: (044) 81 10 62 33 59Casa: (0181) 17 33 04 73
> >
> >
> > --- El mi? 30-dic-09, Stefan Kost <ensonic at hora-obscura.de> escribi?:
> >
> > > De:: Stefan Kost <ensonic at hora-obscura.de>
> > > Asunto: Re: [gst-devel] gstreamer in a non-multimedia area?
> > > A: "Discussion of the development of GStreamer" <
> > gstreamer-devel at lists.sourceforge.net>
> > > Cc: "Leonardo Sandoval" <leonardo_gdl at yahoo.com.mx>
> > > Fecha: mi?rcoles 30 de diciembre de 2009, 8:36
> > > hi,
> > >
> > > Am 29.12.2009 18:18, schrieb Leonardo Sandoval:
> > > > Hi,
> > > >
> > > > In the past, I worked in a project which consists of
> > > joining together several numerical codes (codes which solve
> > > some particular physic problem, like stars gravity or star
> > > mass evolution) in a single one, but this turned to be a
> > > very difficult problem due to different
> > > language/technologies.
> > > >
> > > > Recently, I moved to the multimedia field using
> > > gstreamer and seems? to be an excellent and natural
> > > 'glue' to put several things together under a single
> > > framework. Before I can dig deeper on this, I have a simple
> > > question: in the case of galaxy dynamics, we are not talking
> > > about frames but 'snapshots', where each snapshot contains
> > > the information of each star inside a galaxy (mass,
> > > position, velocity, gas composition, etc.), i.e. the
> > > state? of the galaxy at some time.?
> > > >
> > > > I know that gstreamer does not care about the kind of
> > > data flowing, I just want to know if gstreamer has been used
> > > in other fields? rather than multimedia and if yes,
> > > which has been the experienced with this technology.
> > > >
> > >
> > > I am quite sure it can be done. WHat I wonder is how
> > > gstreamer might help you.
> > > For multimedia it gives you data flow synchronisation and
> > > format negotiation
> > > (and other things). I am not sure you would need those.
> > > What would be left is
> > > the plugin framework and some developments support.
> > >
> > > >
> > > > Happy new year!
> > > >
> > > Same to you.
> > >
> > > Stefan
> > > >
> > > >
> > > >? ? ???Encuentra las mejores
> > > recetas en Yahoo! Cocina.? ? ? ? ?
> > > ? ? ? ? ? ???
> > > > http://mx.mujer.yahoo.com/cocina/
> > > >
> > > >
> > >
> >
> ------------------------------------------------------------------------------
> > > > This SF.Net email is sponsored by the Verizon
> > > Developer Community
> > > > Take advantage of Verizon's best-in-class app
> > > development support
> > > > A streamlined, 14 day to market process makes app
> > > distribution fast and easy
> > > > Join now and get one step closer to millions of
> > > Verizon customers
> > > > http://p.sf.net/sfu/verizon-dev2dev
> > > > _______________________________________________
> > > > gstreamer-devel mailing list
> > > > gstreamer-devel at lists.sourceforge.net
> > > > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
> > >
> > >
> >
> >
> > Encuentra las mejores recetas en Yahoo! Cocina.
> > http://mx.mujer.yahoo.com/cocina/
> >
> >
> >
> > ------------------------------
> >
> > Message: 7
> > Date: Wed, 30 Dec 2009 18:06:24 +0000
> > From: regomodo <regomodo at googlemail.com>
> > Subject: Re: [gst-devel] Playbin2 and Audio-CDs
> > To: Discussion of the development of GStreamer
> > <gstreamer-devel at lists.sourceforge.net>
> > Message-ID: <200912301806.24975.regomodo at googlemail.com>
> > Content-Type: Text/Plain; charset="iso-8859-1"
> >
> > On Monday 28 December 2009 16:01:06 Tim-Philipp M?ller wrote:
> > > On Mon, 2009-12-21 at 20:55 +0000, reg wrote:
> > > > I'm trying to use playbin2 with audiocds. I can get a track to
> > > > play,pause and seek fine but the moment I try and change the uri
> > > > playbin2 just plays up a lot. These are the errors I get:
> > > >
> > > > (Gereqi.py:5019): GStreamer-WARNING **: Name queue is not unique in
> bin
> > > > uridecodebin0, not adding
> > > >
> > > > (Gereqi.py:5019): GStreamer-CRITICAL **: gst_caps_get_structure:
> > > > assertion `index < caps->structs->len' failed
> > > >
> > > > (Gereqi.py:5019): GStreamer-CRITICAL **: gst_structure_get_name:
> > > > assertion `structure != NULL' failed
> > > >
> > > >
> > > > However, I can use playbin2 again without restarting my app. I just
> > > > can't use the audio-cd until I restart my app.
> > > >
> > > > Is it possible to use playbin2 with audio-cd's yet?
> > >
> > > This was a bug, it's fixed in git now and will be in the upcoming -base
> > > 0.10.26 release.
> > >
> > > See https://bugzilla.gnome.org/show_bug.cgi?id=605219
> > >
> > > Cheers
> > > -Tim
> > >
> > >
> > >
> > >
> >
> ---------------------------------------------------------------------------
> > > --- This SF.Net email is sponsored by the Verizon Developer Community
> > > Take advantage of Verizon's best-in-class app development support
> > > A streamlined, 14 day to market process makes app distribution fast and
> > > easy Join now and get one step closer to millions of Verizon customers
> > > http://p.sf.net/sfu/verizon-dev2dev
> > > _______________________________________________
> > > gstreamer-devel mailing list
> > > gstreamer-devel at lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
> > >
> > I finally got around to trying out git. Uninstalled everything gst
> related
> > on
> > my system and built gstreamer,gst-plugins-base and gst-python (in that
> > order)
> > only adding --prefix=/usr/ to ./configure.
> >
> > However, I get an error when I try to play a cd track:
> >
> > 'Error: Your GStreamer installation is missing a plug-in.',
> > 'gstplaysink.c(1483): gen_audio_chain ():
> > /GstPlayBin2:player/GstPlaySink:playsink0'
> >
> > I see this is from gst-plugins-base but I cannot see an option to
> > enable/disable this.
> >
> >
> >
> > ------------------------------
> >
> >
> >
> ------------------------------------------------------------------------------
> > This SF.Net email is sponsored by the Verizon Developer Community
> > Take advantage of Verizon's best-in-class app development support
> > A streamlined, 14 day to market process makes app distribution fast and
> > easy
> > Join now and get one step closer to millions of Verizon customers
> > http://p.sf.net/sfu/verizon-dev2dev
> >
> > ------------------------------
> >
> > _______________________________________________
> > gstreamer-devel mailing list
> > gstreamer-devel at lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
> >
> >
> > End of gstreamer-devel Digest, Vol 43, Issue 47
> > ***********************************************
> >
>
>
>
> --
> Sreerenj B
> Software engineer,Carinov Networks Pvt Ltd
> bsreerenj at gmail.com
> mob: +91 9739469496
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> ------------------------------
>
>
> ------------------------------------------------------------------------------
> This SF.Net email is sponsored by the Verizon Developer Community
> Take advantage of Verizon's best-in-class app development support
> A streamlined, 14 day to market process makes app distribution fast and
> easy
> Join now and get one step closer to millions of Verizon customers
> http://p.sf.net/sfu/verizon-dev2dev
>
> ------------------------------
>
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>
>
> End of gstreamer-devel Digest, Vol 43, Issue 49
> ***********************************************
>
--
Sreerenj B
Software engineer,Carinov Networks Pvt Ltd
bsreerenj at gmail.com
mob: +91 9739469496
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