[gst-devel] Seeking streaming file
Bhanu Prakash
bhanuprakash at tataelxsi.co.in
Fri Sep 28 11:12:38 CEST 2007
Hi All,
How to seek a streaming mp4 file. I am using playbin to play streamed mp4
file and I have installed all latest gstreamer packeges.
Regards
Bhanu
-----Original Message-----
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Subject: gstreamer-devel Digest, Vol 16, Issue 48
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Today's Topics:
1. Re: Dynamic pipeline problem (patrick)
2. Re: Dynamic pipeline problem (patrick)
3. Re: TagSetter in Python Bindings (Wolfgang Silbermayr)
4. Re: jack client name (Stefan Kost)
5. Re: Dynamic pipeline problem (Dominique W?rtz)
6. Re: how to dynamic control volume ? (Stefan Kost)
7. Re: RE : Re: Memory leaks (Stefan Kost)
8. RTP with GStreamer (moser at nimble.ch)
9. Re: TagSetter in Python Bindings (Stefan Kost)
----------------------------------------------------------------------
Message: 1
Date: Thu, 27 Sep 2007 16:20:35 -0400
From: patrick <puredata at 11h11.com>
Subject: Re: [gst-devel] Dynamic pipeline problem
To: Dominique W?rtz <dwuertz at gmx.net>
Cc: gstreamer-devel at lists.sourceforge.net
Message-ID: <46FC1093.8080605 at 11h11.com>
Content-Type: text/plain; charset=ISO-8859-15; format=flowed
running for about 5 minutes here. i am not using the last python
gstreamer binding. i am using the one from ubuntu feisty.
the cpu is 100% when running your script, but i guess it's because of
the loop & print "Add track & Remove Track".
patrick
------------------------------
Message: 2
Date: Thu, 27 Sep 2007 16:34:39 -0400
From: patrick <puredata at 11h11.com>
Subject: Re: [gst-devel] Dynamic pipeline problem
To: Dominique W?rtz <dwuertz at gmx.net>
Cc: gstreamer-devel at lists.sourceforge.net
Message-ID: <46FC13DF.9050303 at 11h11.com>
Content-Type: text/plain; charset=ISO-8859-15; format=flowed
also replacing your sink by jackaudiosink gives an error:
Add Track
Add Event
Add Track
Add Event
Add Track
Add Event
Remove Track
gnonlin.py:82: Warning: g_node_find: assertion `root != NULL' failed
gobject.MainLoop().run()
Remove Track
or sometimes:
Add Event
Remove Track
gnonlin.py:82: Warning: g_node_find: assertion `root != NULL' failed
gobject.MainLoop().run()
Remove Track
(gnonlin.py:9243): GStreamer-WARNING **: loop detected in the graph !!
Remove Track
Add Track
Add Event
Add Track
(gnonlin.py:9243): GStreamer-CRITICAL **: Padname '':src does not belong
to element gnlsource1 when removing
(gnonlin.py:9243): GStreamer-CRITICAL **: gst_pad_set_active: assertion
`GST_IS_PAD (pad)' failed
Add Event
Add Track
Add Event
zombified - calling shutdown handler
Remove Track
Remove Track
and sometimes it works!
pat
------------------------------
Message: 3
Date: Fri, 28 Sep 2007 07:41:06 +0200
From: Wolfgang Silbermayr <wosi at gmx.at>
Subject: Re: [gst-devel] TagSetter in Python Bindings
To: gstreamer-devel at lists.sourceforge.net
Message-ID: <46FC93F2.2070600 at gmx.at>
Content-Type: text/plain; charset=ISO-8859-1
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Stefan Kost wrote:
[...]
> the known tags can be extended. geo tags are currently missing. If you
want file
> a bug to bugzilla.gnome.org. Its helpful if you can do research, how such
> information is mapped to various file-formats.
Good idea, did not think about that myself.
Bug reported: http://bugzilla.gnome.org/show_bug.cgi?id=481169
I only found the EXIF standard that stores geotags, but that's at least
a little bit more than nothing.
Wolfgang.
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Message: 4
Date: Thu, 27 Sep 2007 21:13:17 +0300
From: Stefan Kost <ensonic at hora-obscura.de>
Subject: Re: [gst-devel] jack client name
To: patrick <puredata at 11h11.com>
Cc: gstreamer-devel at lists.sourceforge.net
Message-ID: <46FBF2BD.3090002 at hora-obscura.de>
Content-Type: text/plain; charset=ISO-8859-1
hi,
patrick wrote:
> hi everyone,
>
> i have a question, maybe a request :) i was on #gstreamer and asked
> about a way to specify the jack client name of my application, cause by
> default it's GStreamer. wtay answered this:
>
> (12:47:26 PM) *wtay:* wip, it uses g_get_application_name(), if that
> returns NULL, it uses the constant string "GStreamer)
> (12:48:21 PM) *wtay:* wip, which means you can configure it with
> g_set_application_name()
>
> then i was looking how to add this to my python application, but didn't
> find the solution. here's the code.
>
> import pygst
> pygst.require("0.10")
> import gst
> import time
>
> pipeline = gst.Pipeline("mypipeline")
> audiotestsrc = gst.element_factory_make("audiotestsrc", "audio")
> pipeline.add(audiotestsrc)
> conv = gst.element_factory_make("audioconvert", "converter")
> pipeline.add(conv)
> sink = gst.element_factory_make("jackaudiosink", "sink")
> pipeline.add(sink)
> audiotestsrc.link(conv)
> conv.link(sink)
> pipeline.set_state(gst.STATE_PLAYING)
>
> while True:
> time.sleep(1) #to avoid using all cpu for nothing
>
>
> pretty simple. no gtk, only a comand line application for testing audio.
> so my request is, would it be possible to add something like
> set_property("clientname", "audiotester") to jackaudiosink so i will not
> need glib g_set_application_name()?
>
> if not, how can i use g_set_application_name() in python?
> pat
>
g_set_application_name() is from glib. I am not a python developer, so I can
only ask you to consult the docs for python glib bindings.
Stefan
>
>
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------------------------------
Message: 5
Date: Fri, 28 Sep 2007 08:05:20 +0200
From: Dominique W?rtz <dwuertz at gmx.net>
Subject: Re: [gst-devel] Dynamic pipeline problem
To: patrick <puredata at 11h11.com>
Cc: gstreamer-devel at lists.sourceforge.net
Message-ID: <46FC99A0.1010604 at gmx.net>
Content-Type: text/plain; charset=ISO-8859-15
Hi Patrick,
yes this is about what I'm experiencing when using alsasink, except that it
_never_ runs more than a few seconds for me.
Dominique
patrick schrieb:
> also replacing your sink by jackaudiosink gives an error:
>
> Add Track
> Add Event
> Add Track
> Add Event
> Add Track
> Add Event
> Remove Track
> gnonlin.py:82: Warning: g_node_find: assertion `root != NULL' failed
> gobject.MainLoop().run()
> Remove Track
>
> or sometimes:
>
> Add Event
> Remove Track
> gnonlin.py:82: Warning: g_node_find: assertion `root != NULL' failed
> gobject.MainLoop().run()
> Remove Track
>
> (gnonlin.py:9243): GStreamer-WARNING **: loop detected in the graph !!
> Remove Track
> Add Track
> Add Event
> Add Track
>
> (gnonlin.py:9243): GStreamer-CRITICAL **: Padname '':src does not belong
> to element gnlsource1 when removing
>
> (gnonlin.py:9243): GStreamer-CRITICAL **: gst_pad_set_active: assertion
> `GST_IS_PAD (pad)' failed
> Add Event
> Add Track
> Add Event
> zombified - calling shutdown handler
> Remove Track
> Remove Track
>
>
>
> and sometimes it works!
> pat
>
------------------------------
Message: 6
Date: Wed, 26 Sep 2007 20:10:23 +0300
From: Stefan Kost <ensonic at hora-obscura.de>
Subject: Re: [gst-devel] how to dynamic control volume ?
To: Volter Yen <volter619 at 163.com>
Cc: gstreamer-devel at lists.sourceforge.net
Message-ID: <46FA927F.3080608 at hora-obscura.de>
Content-Type: text/plain; charset=x-gbk
Hi,
Volter Yen wrote:
> Hi,
> recently,I tried to use the volume plugin to control the audio
> volume,and I can make it in static way by setting the volume property
> vaule in my appliaction, but I want to dynamicly control the volume
> while the pipeline is till working on,how to dynamicly change the value
> of plugin's property after the g_main_loop_run()? could anyone help
> me?thank you!
> Volter
>
you can change the volume property of the volume element at any time, e.g.
from
the callback of a UI widget. Alternatively you can use the gst_controller to
schedule changes for given time-stamps. The controller can make abrupt
changes
or can create smooth transitions.
Stefan
>
>
>
>
> =====================================================
>
> Happy everyday $ Best Regards!
>
> msn:volter619 at 163.com
>
> Focus on embed linux software!
>
>
> ------------------------------------------------------------------------
> ??70??????????????????2008??????
>
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35&Values=31,43,51,60,72,82,91,100,110,312,330,332,499,587,702,733,734&Redir
ect=http://adcn.doubleclick.net/clk;134682177;20226578;k%3Fhttp://www.rising
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>
>
>
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>
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------------------------------
Message: 7
Date: Wed, 26 Sep 2007 20:07:12 +0300
From: Stefan Kost <ensonic at hora-obscura.de>
Subject: Re: [gst-devel] RE : Re: Memory leaks
To: Steve Fink <sphink at gmail.com>
Cc: doclivingston at gmail.com, gstreamer-devel at lists.sourceforge.net
Message-ID: <46FA91C0.9090308 at hora-obscura.de>
Content-Type: text/plain; charset=ISO-8859-1
hi,
Steve Fink wrote:
> On 9/22/07, James Doc Livingston <doclivingston at gmail.com> wrote:
>> On Sat, 2007-09-22 at 09:31 -0700, Steve Fink wrote:
>>> I think it was 0.10.13 originally? But I get the same thing with current
CVS.
>>>
>>> ==00:00:03:44.899 25856== 719,760 bytes in 8,997 blocks are definitely
>>> lost in loss record 2,505 of 2,505
>>> ==00:00:03:44.899 25856== at 0x4021620: malloc
(vg_replace_malloc.c:149)
>>> ==00:00:03:44.899 25856== by 0x415A2C5: g_malloc (gmem.c:131)
>>> ==00:00:03:44.899 25856== by 0x4169E97: g_slice_alloc (gslice.c:777)
>>> ==00:00:03:44.899 25856== by 0x416A214: g_slice_alloc0 (gslice.c:784)
>>> ==00:00:03:44.899 25856== by 0x40FF336: g_type_create_instance
(gtype.c:1549)
>> <snip>
>>
>> You'll want to run this with the environment variables
>> G_SLICE=always-malloc and G_DEBUG=gc-friendly set, otherwise you'll get
>> the above false positive from glib's slice allocator.
>
> I am. I run valgrind with the shell script below. How can I tell if
> they are false positives? (I *am* observing memory use going up, after
> all.)
>
> export GLIBCPP_FORCE_NEW=1
> export GLIBCXX_FORCE_NEW=1
> export G_SLICE=always-malloc
> export G_DEBUG=gc-friendly
>
> DP="/home/sfink/"
> SUPP="--suppressions=/usr/lib/valgrind/glibc-2.3.supp
> --suppressions=${DP}gstreamer/common/gst.supp
> --suppressions=${DP}gst-plugins-base/common/gst.supp
> --suppressions=${DP}gst-plugins-good/common/gst.supp"
>
> OPTS="-v --trace-children=yes --track-fds=yes --time-stamp=yes
> --tool=memcheck --leak-check=yes --leak-resolution=high
> --freelist-vol=10000000 --num-callers=40 ${SUPP}"
>
> exec valgrind $OPTS "$@"
With those suppresions in use the shown leaks might be real. Start with the
"definitely lost" and look at the code. Its hard, but thats the game.
Stefan
------------------------------
Message: 8
Date: Fri, 28 Sep 2007 10:03:03 +0200
From: moser at nimble.ch
Subject: [gst-devel] RTP with GStreamer
To: gstreamer-devel at lists.sourceforge.net
Message-ID: <20070928100303.qtywd2epcs5wskss at webmail.nimble.ch>
Content-Type: text/plain; charset=ISO-8859-1; DelSp="Yes";
format="flowed"
Hi All
I Actually try to stream MP3 over the Network via RTP.
I tryed go make som samplestream on my localhost looking like this:
gst-launch filesrc location=dance.mp3 ! rtpbin ! udpsink
gst-launch udpsrc ! rtpbin ! decodebin ! alsasink
But this doesn't work. I Tested many other posibilities with
udpsink/udpsrc but the sound never played.
Of course
gst-launch filesrc location=dance.mp3 ! decodebin ! alsasink
works!
Looking forward for a little bit help
Your nimble
------------------------------
Message: 9
Date: Thu, 27 Sep 2007 22:47:41 +0300
From: Stefan Kost <ensonic at hora-obscura.de>
Subject: Re: [gst-devel] TagSetter in Python Bindings
To: Wolfgang Silbermayr <wosi at gmx.at>
Cc: gstreamer-devel at lists.sourceforge.net
Message-ID: <46FC08DD.90706 at hora-obscura.de>
Content-Type: text/plain; charset=ISO-8859-1
hi,
Wolfgang Silbermayr wrote:
> Mark Nauwelaerts wrote:
>> Wolfgang Silbermayr wrote:
>>> Wolfgang Silbermayr wrote:
>>>>> Hi List!
>>>>>
>>>>> I am trying to get a small python project done where it is important
to set tags in ogg files. In the #gstreamer channel I got the hint that the
oggmux element implements TagSetter, but I just can't figure out how to
access this interface in the python gst bindings. Maybe somebody can point
me there.
>>> Okay, so I answer to myself if nobody can help me on. It seems that the
>>> TagSetter interface is not implemented in the python bindings. If this
>>> is the case, is there anything that I can do in order to get them in?
>> TagSetter is implemented in python bindings; I used it for example in
GEntrans
>> (http://gentrans.sourceforge.net/). Look at tools/entrans.py in download
or svn
>> and search for TagSetter. That should get you the following fragment
(which is
>> not complete and/or may not be the best example), which should give you
an idea
>> (and get going):
>
> Okay, now I finally found the time to try that out. It seems to me that
> the TagSetter only accepts tags that it knows, like artist, title etc.
> The problem is that my project should store geographical data
> (longitude, latitude, altitude). Does anybody know if I can forcefully
> set my own tags (it is possible to store them in vorbis, tagtool for
> example can do that) or do I have to find a different solution (maybe
> store in comments)?
>
> Greetings, Wolfgang.
the known tags can be extended. geo tags are currently missing. If you want
file
a bug to bugzilla.gnome.org. Its helpful if you can do research, how such
information is mapped to various file-formats.
Stefan
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