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Try with MP4Box utility. Eg:MP4Box -hint <mediafile> Rgds, Satheesh On Thu, Mar 11, 2010 at 12:14 PM, <[hidden email]> wrote:
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Today's Topics:
1. Re: [PATCH] gst-plugins-good: add a TV-norm selection
parameter to v4l2sink (Clark, Rob)
2. Re: [PATCH] gst-plugins-good: add a TV-norm selection
parameter to v4l2sink (Tim-Philipp M?ller)
3. how to do remuxing using gstreamer (Venu Vemulapally)
4. building a gst plugin (vineeth)
5. Problem while hinting a media file. (Rajesh Marathe)
6. Use of GST_PTR_FORMAT on non glibc targets unavailable?
(Alberto Vigata)
----------------------------------------------------------------------
Message: 1
Date: Wed, 10 Mar 2010 18:47:50 -0600
From: "Clark, Rob" <[hidden email]>
Subject: Re: [gst-devel] [PATCH] gst-plugins-good: add a TV-norm
selection parameter to v4l2sink
To: Guennadi Liakhovetski <[hidden email]>
Cc: "[hidden email]"
<[hidden email]>
Message-ID: <[hidden email]>
Content-Type: text/plain; charset="us-ascii"
I agree that an enum would be a good idea (have a look at "flags" property.. search for GST_TYPE_V4L2_DEVICE_FLAGS in gstv4l2object.c for an example)
also.. I think it might be a good idea to put this property in gstv4l2object.c (see the install/get/set_property_helper functions).. so that both v4l2sink and v4l2src get the property.
BR,
-R
On Mar 10, 2010, at 1:04 PM, Guennadi Liakhovetski wrote:
> Linux video (v4l2) output drivers can support multiple TV norms, add a
> parameter to the v4l2sink plugin to select one.
>
> Signed-off-by: Guennadi Liakhovetski <[hidden email]>
> ---
> Ok, I have no idea what's the patch submission procudure here, for now I
> just followed the one I'm familiar with - from the Linux kernel. Feel free
> to point me out to some doc.
>
> diff -u a/sys/v4l2/gstv4l2sink.c b/sys/v4l2/gstv4l2sink.c
> --- a/sys/v4l2/gstv4l2sink.c 2010-03-08 16:41:32.000000000 +0100
> +++ b/sys/v4l2/gstv4l2sink.c 2010-03-10 19:44:29.000000000 +0100
> @@ -75,6 +75,7 @@
> PROP_OVERLAY_LEFT,
> PROP_OVERLAY_WIDTH,
> PROP_OVERLAY_HEIGHT,
> + PROP_TV_NORM,
> };
>
>
> @@ -251,6 +252,11 @@
> "The height of the video overlay; default is equal to negotiated image height",
> 0, 0xffffffff, 0, G_PARAM_READWRITE));
>
> + g_object_class_install_property (gobject_class, PROP_TV_NORM,
> + g_param_spec_string ("tv-norm", "TV norm",
> + "One of NTSC-M, NTSC-J, NTSC-443, PAL-B, PAL-M, PAL-N",
> + "NTSC-M", G_PARAM_READWRITE));
> +
> basesink_class->get_caps = GST_DEBUG_FUNCPTR (gst_v4l2sink_get_caps);
> basesink_class->set_caps = GST_DEBUG_FUNCPTR (gst_v4l2sink_set_caps);
> basesink_class->buffer_alloc = GST_DEBUG_FUNCPTR (gst_v4l2sink_buffer_alloc);
> @@ -280,6 +286,7 @@
>
> v4l2sink->overlay_fields_set = 0;
> v4l2sink->state = 0;
> + v4l2sink->tv_norm = V4L2_STD_NTSC_M;
> }
>
>
> @@ -367,6 +374,7 @@
> gst_v4l2sink_set_property (GObject * object,
> guint prop_id, const GValue * value, GParamSpec * pspec)
> {
> + const gchar *norm;
> GstV4l2Sink *v4l2sink = GST_V4L2SINK (object);
>
> if (!gst_v4l2_object_set_property_helper (v4l2sink->v4l2object,
> @@ -395,6 +403,23 @@
> v4l2sink->overlay_fields_set |= OVERLAY_HEIGHT_SET;
> gst_v4l2sink_sync_overlay_fields (v4l2sink);
> break;
> + case PROP_TV_NORM:
> + norm = g_value_get_string (value);
> + if (strcmp (norm, "NTSC-M") == 0)
> + v4l2sink->tv_norm = V4L2_STD_NTSC_M;
> + else if (strcmp (norm, "NTSC-J") == 0)
> + v4l2sink->tv_norm = V4L2_STD_NTSC_M_JP;
> + else if (strcmp (norm, "NTSC-443") == 0)
> + v4l2sink->tv_norm = V4L2_STD_NTSC_443;
> + else if (strcmp (norm, "PAL-B") == 0)
> + v4l2sink->tv_norm = V4L2_STD_PAL_B;
> + else if (strcmp (norm, "PAL-M") == 0)
> + v4l2sink->tv_norm = V4L2_STD_PAL_M;
> + else if (strcmp (norm, "PAL-N") == 0)
> + v4l2sink->tv_norm = V4L2_STD_PAL_N;
> + else
> + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
> + break;
> default:
> G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
> break;
> @@ -427,6 +452,28 @@
> case PROP_OVERLAY_HEIGHT:
> g_value_set_uint (value, v4l2sink->overlay.height);
> break;
> + case PROP_TV_NORM:
> + switch (v4l2sink->tv_norm) {
> + case V4L2_STD_NTSC_M:
> + g_value_set_string (value, "NTSC-M");
> + break;
> + case V4L2_STD_NTSC_M_JP:
> + g_value_set_string (value, "NTSC-J");
> + break;
> + case V4L2_STD_NTSC_443:
> + g_value_set_string (value, "NTSC-443");
> + break;
> + case V4L2_STD_PAL_B:
> + g_value_set_string (value, "PAL-B");
> + break;
> + case V4L2_STD_PAL_M:
> + g_value_set_string (value, "PAL-M");
> + break;
> + case V4L2_STD_PAL_N:
> + g_value_set_string (value, "PAL-N");
> + break;
> + }
> + break;
> default:
> G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
> break;
> @@ -591,6 +638,11 @@
> return FALSE;
> }
>
> + if (!gst_v4l2_set_norm (v4l2sink->v4l2object, v4l2sink->tv_norm)) {
> + GST_DEBUG_OBJECT (v4l2sink, "unsupported TV norm %llx", v4l2sink->tv_norm);
> + return FALSE;
> + }
> +
> gst_v4l2sink_sync_overlay_fields (v4l2sink);
>
> v4l2sink->current_caps = gst_caps_ref (caps);
> diff -u a/sys/v4l2/gstv4l2sink.h b/sys/v4l2/gstv4l2sink.h
> --- a/sys/v4l2/gstv4l2sink.h 2009-11-20 10:59:46.000000000 +0100
> +++ b/sys/v4l2/gstv4l2sink.h 2010-03-10 19:34:54.000000000 +0100
> @@ -28,6 +28,7 @@
> #include <gst/video/gstvideosink.h>
> #include <gstv4l2object.h>
> #include <gstv4l2bufferpool.h>
> +#include <linux/videodev2.h>
>
> GST_DEBUG_CATEGORY_EXTERN (v4l2sink_debug);
>
> @@ -72,6 +73,7 @@
> guint8 overlay_fields_set;
>
> guint8 state;
> + v4l2_std_id tv_norm;
> };
>
> struct _GstV4l2SinkClass {
------------------------------
Message: 2
Date: Thu, 11 Mar 2010 01:11:41 +0000
From: Tim-Philipp M?ller <[hidden email]>
Subject: Re: [gst-devel] [PATCH] gst-plugins-good: add a TV-norm
selection parameter to v4l2sink
To: [hidden email]
Message-ID: <1268269901.14177.10.camel@zingle>
Content-Type: text/plain; charset="UTF-8"
On Wed, 2010-03-10 at 20:04 +0100, Guennadi Liakhovetski wrote:
Hi,
> Ok, I have no idea what's the patch submission procudure here, for now I
> just followed the one I'm familiar with - from the Linux kernel. Feel free
> to point me out to some doc.
http://gstreamer.freedesktop.org/wiki/SubmittingPatches has some
pointers.
It would be great if you could put your patch into bugzilla so it's not
forgotten about. Thanks!
Cheers
-Tim
------------------------------
Message: 3
Date: Wed, 10 Mar 2010 18:29:39 -0800
From: Venu Vemulapally <[hidden email]>
Subject: [gst-devel] how to do remuxing using gstreamer
To: [hidden email]
Message-ID:
<[hidden email]>
Content-Type: text/plain; charset="iso-8859-1"
Hi All,
I am trying to convert a MP4 container format AV file to TS file with
out changing AV formats, Only I want to change the container format. Is it
possible with gstreamer to achieve this ? If so how to do this please
suggest me .
Thanks,
Venu
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Message: 4
Date: Thu, 11 Mar 2010 09:49:14 +0530
From: vineeth <[hidden email]>
Subject: [gst-devel] building a gst plugin
To: [hidden email]
Message-ID:
<[hidden email]>
Content-Type: text/plain; charset="iso-8859-1"
Hi all,
I was going through the Plugin writers guide, and I sincerely feel that
the chapter 9<http://gstreamer.freedesktop.org/data/doc/gstreamer/head/pwg/html/chapter-building-testapp.html>should
also describe how to build the test plugin "my_filter"
that was described all the way along and also being used in the test app.
BTW, I used the following command to do this,
gcc `pkg-config --libs --cflags gstreamer-0.10` gstexamplefilter.c
--shared -o ~/.gstreamer-0.10/plugins/libexamplefilter.so
But was unable to load it,
I got the following error message, when I ran it through valgrind :
==3068== Memcheck, a memory error detector.
==3068== Copyright (C) 2002-2008, and GNU GPL'd, by Julian Seward et al.
==3068== Using LibVEX rev 1884, a library for dynamic binary translation.
==3068== Copyright (C) 2004-2008, and GNU GPL'd, by OpenWorks LLP.
==3068== Using valgrind-3.4.1-Debian, a dynamic binary instrumentation
framework.
==3068== Copyright (C) 2000-2008, and GNU GPL'd, by Julian Seward et al.
==3068== For more details, rerun with: -v
==3068==
==3069== Invalid read of size 1
==3069== at 0x42DC3D7: g_str_hash (in /usr/lib/libglib-2.0.so.0.2000.1)
==3069== by 0x42AA3FA: g_hash_table_lookup (in
/usr/lib/libglib-2.0.so.0.2000.1)
==3069== by 0x42A3EB6: g_intern_string (in
/usr/lib/libglib-2.0.so.0.2000.1)
==3069== by 0x4095A48: (within /usr/lib/libgstreamer-0.10.so.0.19.0)
==3069== by 0x4096F51: gst_plugin_load_file (in
/usr/lib/libgstreamer-0.10.so.0.19.0)
==3069== by 0x40A0B8E: (within /usr/lib/libgstreamer-0.10.so.0.19.0)
==3069== by 0x40A0CA7: gst_registry_scan_path (in
/usr/lib/libgstreamer-0.10.so.0.19.0)
==3069== by 0x40547B2: (within /usr/lib/libgstreamer-0.10.so.0.19.0)
==3069== by 0x40551AC: (within /usr/lib/libgstreamer-0.10.so.0.19.0)
==3069== by 0x40568FA: (within /usr/lib/libgstreamer-0.10.so.0.19.0)
==3069== by 0x42C7DCA: g_option_context_parse (in
/usr/lib/libglib-2.0.so.0.2000.1)
==3069== by 0x4055FA5: gst_init_check (in
/usr/lib/libgstreamer-0.10.so.0.19.0)
==3069== Address 0x1 is not stack'd, malloc'd or (recently) free'd
ERROR: Caught a segmentation fault while loading plugin file:
/home/pubuntu/.gstreamer-0.10/plugins/libexamplefilter.so
Please either:
- remove it and restart.
- run with --gst-disable-segtrap and debug.
....
Any idea about what is going wrong?
Thanks
Br,
V
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------------------------------
Message: 5
Date: Thu, 11 Mar 2010 11:03:04 +0530
From: Rajesh Marathe <[hidden email]>
Subject: [gst-devel] Problem while hinting a media file.
To: Discussion of the development of GStreamer
<[hidden email]>
Message-ID: <[hidden email]>
Content-Type: text/plain
Hi,
Can anybody please tell me how to 'hint' a media file so that I can
stream RTSP (over TCP)/RTP (over UDP) media from Server to Gstreamer
0.10.22 based clients ?
regards,
Rajesh Marathe.
------------------------------
Message: 6
Date: Wed, 10 Mar 2010 22:32:04 -0800
From: Alberto Vigata <[hidden email]>
Subject: [gst-devel] Use of GST_PTR_FORMAT on non glibc targets
unavailable?
To: [hidden email]
Message-ID:
<[hidden email]>
Content-Type: text/plain; charset=ISO-8859-1
Hello All,
I was playing around with gstreamer today on windows using ossbuild
available at http://code.google.com/p/ossbuild/ and I stumbled?across
with an issue regarding the customized printf style formatting
GST_PTR_FORMAT that seems to be used pervasively around the code.
Typical GST_PTR_FORMAT usage goes as follows
GST_LOG ("caps are %" GST_PTR_FORMAT, caps);
GST_PTR_FORMAT seems to resolve to either "p" or "P" depending on
preprocessor defs, with the idea that the GST debug system will
introduce %p or %P as a new format flag for g_printerr() that will
take the GType following the format string and format it accordingly.
My problem is that this is not working in my windows builds. After
further inspection, seems that in order for this to work, the GST
debug system is using 'register_printf_specifier' on gstinfo.c to
register the new format types and then after some massaging ends
calling g_printerr() of GLib to do the final debug output. Seems like
'register_printf_specifier' is a glibc specific feature therefore is
not available in any target that is not using glibc. This seems a
little bit odd to me.
Is GST_PTR_FORMAT really available only on glibc targets?
thanks in advance,
Alberto
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