[gst-devel] How to overcome the caps limitation of peers during caps negotiation?
Sharath Mudalamane
sharath_m at mindtree.com
Thu Dec 13 06:09:46 CET 2007
Hello Stefan,
Thanks for the reply. I am putting my _chain() & _init() below. Please,
provide help & guidelines.
PLEASE NOTE, my yrtsidua() can take 1 - 6 channels and always give out 2
channels.
ABOUT CHAIN FUNCTION:
In chain function, I will pass the buf->data to yrtsidua() is input. The
processed date in out_buf is assigned back to buf->data before it is pushed
out of _chain(). I am not changing anything in buf->caps ( DO you think, this
is where I am going wrong, please let me know!). I allocate memory to out_buf
in gst_wow_init().
Please, note that I am planning to use GstAdapter Interface for buffer
management in _chain (as you have suggested) which I have not done yet!
h_yrtsidua is a global handle to yrtsidua internal module which is
initialized during module init.
------------------------------------------------
MY CHAIN FUNCTION:
-------------------
/* chain function
*
* The function yrtsidua() from the underlying module, which does audio
* processing.
* yrtsidua() takes an input buffer of 64bytes multiple & puts the
* processed data on 'out_buf'.
*
*/
static GstFlowReturn
gst_wow_chain (GstPad * pad, GstBuffer * buf)
{
GstWow *filter;
static int count = 0;
count++;
/* Number of samples in current data buffer in _chain() */
int no_samples = 0;
#ifdef DM_DEBUG
g_print ("\n ***[_chain() %d] Input buf size=[%u] ",
count,
(unsigned int)GST_BUFFER_SIZE (buf));
#endif //DM_DEBUG
filter = GST_WOW (GST_OBJECT_PARENT (pad));
#ifdef DM_DEBUG
{
gchar *type = NULL;
type = gst_caps_to_string (buf->caps);
g_print ("\n #[_chain] Proposed Capabilities by the stream:\n [ %s
]\n",type);
g_free (type);
}
#endif //DM_DEBUG
/* no_samples = ( n_bytes / n_chans) / 2
* yrtsidua() processes 16 bit samples :-)
*/
no_samples = (GST_BUFFER_SIZE(buf) / filter->channels) / 2;
#ifdef DM_DEBUG
g_print (", no_samples[%d] \t", no_samples);
#endif //DM_DEBUG
yrtsidua( filter->h_yrtsidua,
(IO_DATUM *) GST_BUFFER_DATA(buf),
(IO_DATUM *) GST_BUFFER_DATA(out_buf),
no_samples);
GST_BUFFER_DATA(buf) = GST_BUFFER_DATA(out_buf);
/* push out the processed buffer */
return gst_pad_push (filter->srcpad, buf);
}
-----------------------------------------------
ABOUT _INIT() FUNCTION:
In wow_init(), I am allocation memory for out_buf (using GstBuffer
interface), once for all
And reuse it for audio processing.
----------------------------------------------
static void
gst_wow_init (GstWow * filter,
GstWowClass * gclass)
{
GstElementClass *klass = GST_ELEMENT_GET_CLASS (filter);
filter->sinkpad =
gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
"sink"), "sink");
gst_pad_set_setcaps_function (filter->sinkpad,
GST_DEBUG_FUNCPTR(gst_wow_set_caps));
gst_pad_set_getcaps_function (filter->sinkpad,
GST_DEBUG_FUNCPTR(gst_pad_proxy_getcaps));
filter->srcpad =
gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
"src"), "src");
gst_pad_set_getcaps_function (filter->srcpad,
GST_DEBUG_FUNCPTR(gst_pad_proxy_getcaps));
gst_element_add_pad (GST_ELEMENT (filter), filter->sinkpad);
gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad);
gst_pad_set_chain_function (filter->sinkpad,
GST_DEBUG_FUNCPTR(gst_wow_chain));
/*
* properties initial values
*/
/* Initializing my internal module setup */
filter->h_yrtsidua = yrtsidua_open();
filter->mobile_surround = DM_FEATURE_OFF;
/* allocate memory for Yrtsidua output buffer */
out_buf = gst_buffer_new();
GST_BUFFER_SIZE (out_buf) = YRTSIDUA_OUTPUT_BUFFER_SIZE;
GST_BUFFER_MALLOCDATA (out_buf) = g_malloc (YRTSIDUA_OUTPUT_BUFFER_SIZE);
GST_BUFFER_DATA (out_buf) = GST_BUFFER_MALLOCDATA (out_buf);
}
----------------------------------------------
Thanks and regards,
Sharath
_____________________________________________________________________________
___________________________________________________________________________
-----Original Message-----
From: Stefan Kost [mailto:ensonic at hora-obscura.de]
Sent: Thursday, December 13, 2007 1:11 AM
To: Sharath Mudalamane
Cc: gstreamer-devel at lists.sourceforge.net
Subject: Re: [gst-devel] How to overcome the caps limitation of peers during
caps negotiation?
Hi,
Sharath Mudalamane schrieb:
> To: 'gstreamer-devel at lists.sourceforge.net'
> Subject: How to overcome the caps limitation of peers during caps
> negotiation?
>
>
>
>
>
> Hello all,
>
>
>
>
>
> PROBLEM DESCRIPTION:
>
>
>
> I have developed a gstreamer filter (say "wow").
>
> I am trying to play a 6 channel (> 2 channels) wav file with my filter
> in the pipeline (on Nokia 770) as follows:
>
> Gst-launch-0.10 filesrc location=6channel.wav ! wavparse ! wow ! dsppcmsink
>
>
> But, this fails during caps negotiation due to the fact that
> dsppcmsink's sink pad supports only a MAX of 2 channels.
>
Your src-pad has fixed 2 channels. So no need to negotiate there. What I
belive
is that you forget to set the caps on the buffer you sent out. How do you
allocate your output buffers? Are you using
gst_pad_alloc_buffer_and_set_caps()?
Can you post the chain-function of your code?
Stefan
>
>
> How should I implement my gst_wow_getcaps (GstPad) function to overcome
> this peer caps limitation?
>
> I read in Plug-in writer's guide section 10.5. about implementating
> _getcaps() to overcome such limitations and setting order of preferences.
>
> But, I need more information and guidelines about how this _getcaps is
> used by gstreamer during caps negotiation.
>
>
>
>
>
>
>
>
>
> DETAILS OF MY PLUGIN:
>
>
>
>
>
> My plugin's sink and src pads are like this:
>
> NOTE: my plugin can take 1 to 6 channels and outputs 2 channels always.
>
>
>
>
-----------------------------------------------------------------------------
-----------
>
> static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
>
> GST_PAD_SINK,
>
> GST_PAD_ALWAYS,
>
> GST_STATIC_CAPS (
>
> "audio/x-raw-int, "
>
> "signed = (boolean){ true, false }, "
>
> "width = (int) 16, "
>
> "depth = (int) 16, "
>
> "endianess = (int) 1234, "
>
> "channels = (int) [ 1 , 6 ], "
>
> "rate = (int) { 8000, 11025, 12000, 16000, 22050, 24000, 32000,
> 44100, 48000 } "
>
> )
>
> );
>
>
>
> static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
>
> GST_PAD_SRC,
>
> GST_PAD_ALWAYS,
>
> GST_STATIC_CAPS (
>
> "audio/x-raw-int, "
>
> "signed = (boolean){ true, false }, "
>
> "width = (int) 16, "
>
> "depth = (int) 16, "
>
> "endianess = (int) 1234, "
>
> "channels = (int) 2, "
>
> "rate = (int) { 8000, 11025, 12000, 16000, 22050, 24000, 32000,
> 44100, 48000 } "
>
> )
>
> );
>
>
>
>
-----------------------------------------------------------------------------
------------------
>
>
>
>
>
> Nokia770-49:~# gst-inspect-0.10 wow
>
> Factory Details:
>
> Long name:
>
> Class: Filter/Audio
>
> Description: Enhances stereo content for headphones
>
> Author(s): Sharath Mudalamane <sharath_m at mindtree.com>
>
> Rank: none (0)
>
>
>
> Plugin Details:
>
> Name: wow
>
> Description: Enhances stereo content for mobile device
>
> Filename: /usr/lib/gstreamer-0.10/libgstwow.so
>
> Version: 0.10.0.1
>
> License: LGPL
>
> Source module: gst-plugin
>
> Binary package: GStreamer
>
> Origin URL:
>
>
>
> GObject
>
> +----GstObject
>
> +----GstElement
>
> +----GstWow
>
>
>
> Pad Templates:
>
> SRC template: 'src'
>
> Availability: Always
>
> Capabilities:
>
> audio/x-raw-int
>
> signed: { true, false }
>
> width: 16
>
> depth: 16
>
> endianess: 1234
>
> channels: 2
>
> rate: { 8000, 11025, 12000, 16000, 22050, 24000,
> 32000, 44100, 48000 }
>
>
>
> SINK template: 'sink'
>
> Availability: Always
>
> Capabilities:
>
> audio/x-raw-int
>
> signed: { true, false }
>
> width: 16
>
> depth: 16
>
> endianess: 1234
>
> channels: [ 1, 6 ]
>
> rate: { 8000, 11025, 12000, 16000, 22050, 24000,
> 32000, 44100, 48000 }
>
>
>
>
>
> Element Flags:
>
> no flags set
>
>
>
> Element Implementation:
>
> No loopfunc(), must be chain-based or not configured yet
>
> Has change_state() function: 0x40040ba1
>
> Has custom save_thyself() function: 0x40040f09
>
> Has custom restore_thyself() function: 0x40041191
>
>
>
> Element has no clocking capabilities.
>
> Element has no indexing capabilities.
>
>
>
> Pads:
>
> SRC: 'src'
>
> Implementation:
>
> Pad Template: 'src'
>
> SINK: 'sink'
>
> Implementation:
>
> Has chainfunc(): 0x4068fde8
>
> Pad Template: 'sink'
>
>
>
> Element Properties:
>
>
>
> [ not shown ]
>
>
>
> Nokia770-49:~#
>
>
>
>
-----------------------------------------------------------------------------
-----------
>
>
>
> OTHER OBSERVATIONS:
>
>
>
> Gst-launch-0.10 filesrc location=6channel.wav ! wavparse ! wow ! dsppcmsink
>
> The above pipeline worked for wav files with 1 and 2 channels. */It
> fails (hang up) for 3,4,5,6 channels/*.
>
>
>
> The logs are provided below
>
>
-----------------------------------------------------------------------------
------------------
>
> Nokia770-49:/home/user/media_samples# gst-launch-0.10 -m filesrc
> location=SigYrtsidua_2ch_48k.wav ! wavparse ! wow ! dsppcmsink
>
> Setting pipeline to PAUSED ...
>
> Pipeline is PREROLLING ...
>
> Got Message from element "dsppcmsink0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_NULL, new-state=(GstState)GST_STATE_READY,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Got Message from element "wow0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_NULL, new-state=(GstState)GST_STATE_READY,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Got Message from element "wavparse0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_NULL, new-state=(GstState)GST_STATE_READY,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Got Message from element "filesrc0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_NULL, new-state=(GstState)GST_STATE_READY,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Got Message from element "pipeline0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_NULL, new-state=(GstState)GST_STATE_READY,
> pending-state=(GstState)GST_STATE_PAUSED
>
> Got Message from element "wow0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_READY,
> new-state=(GstState)GST_STATE_PAUSED,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Got Message from element "wavparse0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_READY,
> new-state=(GstState)GST_STATE_PAUSED,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Got Message from element "filesrc0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_READY,
> new-state=(GstState)GST_STATE_PAUSED,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
>
>
> #[gst_wow_set_caps] called !!... GstPad = <0x50180>, GstCaps = <0x180b0>
>
> #[gst_wow_set_caps] Proposed Capabilities by the stream:
>
> [ audio/x-raw-int, endianness=(int)1234, channels=(int)2,
> width=(int)16, depth=(int)16, signed=(boolean)true, rate=(int)48000 ]
>
> Got Message from element "wavparse0" (tag): taglist,
> audio-codec=(string)"Uncompressed\ 16-bit\ PCM\ audio"
>
> Got Message from element "dsppcmsink0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_READY,
> new-state=(GstState)GST_STATE_PAUSED,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Got Message from element "pipeline0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_READY,
> new-state=(GstState)GST_STATE_PAUSED,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Pipeline is PREROLLED ...
>
> Setting pipeline to PLAYING ...
>
> Got Message from element "pipeline0" (new-clock): GstMessageNewClock,
> clock=(GstClock)(NULL)
>
> New clock: GstSystemClock
>
> Got Message from element "dsppcmsink0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_PAUSED,
> new-state=(GstState)GST_STATE_PLAYING,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Got Message from element "wow0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_PAUSED,
> new-state=(GstState)GST_STATE_PLAYING,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Got Message from element "wavparse0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_PAUSED,
> new-state=(GstState)GST_STATE_PLAYING,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Got Message from element "filesrc0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_PAUSED,
> new-state=(GstState)GST_STATE_PLAYING,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Got Message from element "pipeline0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_PAUSED,
> new-state=(GstState)GST_STATE_PLAYING,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Got Message from element "pipeline0" (eos): no message details
>
> Got EOS from element "pipeline0".
>
> Execution ended after 2938873000 ns.
>
> Setting pipeline to PAUSED ...
>
> Setting pipeline to READY ...
>
> Setting pipeline to NULL ...
>
> FREEING pipeline ...
>
> Nokia770-49:/home/user/media_samples#
>
>
>
>
>
>
>
> Nokia770-49:/home/user/media_samples# gst-launch-0.10 -m filesrc
> location=SigYrtsidua_6ch_48k.wav ! wavparse ! wow ! dsppcmsink
>
> Setting pipeline to PAUSED ...
>
> Pipeline is PREROLLING ...
>
> Got Message from element "dsppcmsink0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_NULL, new-state=(GstState)GST_STATE_READY,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Got Message from element "wow0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_NULL, new-state=(GstState)GST_STATE_READY,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Got Message from element "wavparse0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_NULL, new-state=(GstState)GST_STATE_READY,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Got Message from element "filesrc0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_NULL, new-state=(GstState)GST_STATE_READY,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Got Message from element "pipeline0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_NULL, new-state=(GstState)GST_STATE_READY,
> pending-state=(GstState)GST_STATE_PAUSED
>
> Got Message from element "wow0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_READY,
> new-state=(GstState)GST_STATE_PAUSED,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Got Message from element "wavparse0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_READY,
> new-state=(GstState)GST_STATE_PAUSED,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Got Message from element "filesrc0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_READY,
> new-state=(GstState)GST_STATE_PAUSED,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Got Message from element "wavparse0" (tag): taglist,
> audio-codec=(string)"Uncompressed\ 16-bit\ PCM\ audio"
>
> Caught interrupt --
>
> Nokia770-49:/home/user/media_samples#
>
> Nokia770-49:/home/user/media_samples#
>
> Nokia770-49:/home/user/media_samples#
>
> Nokia770-49:/home/user/media_samples#
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> Nokia770-49:/home/user/media_samples# gst-launch-0.10 -m filesrc
> location=SigYrtsidua_5ch_48k.wav ! wavparse ! wow ! dsppcmsink
>
> Setting pipeline to PAUSED ...
>
> Pipeline is PREROLLING ...
>
> Got Message from element "dsppcmsink0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_NULL, new-state=(GstState)GST_STATE_READY,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Got Message from element "wow0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_NULL, new-state=(GstState)GST_STATE_READY,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Got Message from element "wavparse0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_NULL, new-state=(GstState)GST_STATE_READY,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Got Message from element "filesrc0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_NULL, new-state=(GstState)GST_STATE_READY,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Got Message from element "pipeline0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_NULL, new-state=(GstState)GST_STATE_READY,
> pending-state=(GstState)GST_STATE_PAUSED
>
> Got Message from element "wow0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_READY,
> new-state=(GstState)GST_STATE_PAUSED,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Got Message from element "wavparse0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_READY,
> new-state=(GstState)GST_STATE_PAUSED,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Got Message from element "filesrc0" (state-changed): GstMessageState,
> old-state=(GstState)GST_STATE_READY,
> new-state=(GstState)GST_STATE_PAUSED,
> pending-state=(GstState)GST_STATE_VOID_PENDING
>
> Got Message from element "wavparse0" (tag): taglist,
> audio-codec=(string)"Uncompressed\ 16-bit\ PCM\ audio"
>
> Caught interrupt --
>
> Nokia770-49:/home/user/media_samples#
>
>
>
>
>
>
-----------------------------------------------------------------------------
------------------
>
>
>
> (2)
>
>
>
> Also I tried writing a typical */hello world program/* to check
> capabilities during negotiation. I have collected the capabilities of my
> filter wow during the linking of the wavparse dynamic pad (sinkpad) and
> my filter's static source pad in the callback function. Below is my
> observation:
>
>
>
> FOR 6CHANNEL: the gst_pad_link () fails and also I observed the filter's
> capabilities limited to 2 channels.
>
> ----------------------------------------------------------
>
> Nokia770-49:/home/user/bin# ./wav_hell01
> ../media_samples/SigYrtsidua_6ch_48k.wav
>
>
>
> [main()] Calling ... gst_init()
>
>
>
> [main()] AFTER Calling... gst_init()
>
>
>
> [main()] Calling... factory_make( wow)
>
>
>
> [main()] AFTER Calling... factory_make( wow) handle = <358504>
>
>
>
> [main()] Adding wow to the pipeline BIN
>
>
>
> [main()] AFTER Adding wow to the pipeline BIN
>
>
>
>
>
> [main()] Setting to PLAYING
>
>
>
>
>
> [main()] Running
>
>
>
> [GST_MESSAGE_STATE_CHANGED] recvd! old <1> new <2> pending <0>
>
> [GST_MESSAGE_STATE_CHANGED] recvd! old <1> new <2> pending <0>
>
> [GST_MESSAGE_STATE_CHANGED] recvd! old <1> new <2> pending <0>
>
> [GST_MESSAGE_STATE_CHANGED] recvd! old <1> new <2> pending <0>
>
> [GST_MESSAGE_STATE_CHANGED] recvd! old <1> new <2> pending <4>
>
> [GST_MESSAGE_STATE_CHANGED] recvd! old <2> new <3> pending <0>
>
> [GST_MESSAGE_STATE_CHANGED] recvd! old <2> new <3> pending <0>
>
> [GST_MESSAGE_STATE_CHANGED] recvd! old <2> new <3> pending <0>
>
> */ /*
>
> */ [new_pad()] The Capabilities of dynamic pad of wavparse:/*
>
> */ [ audio/x-raw-int, endianness=(int)1234, channels=(int)6,
> width=(int)16, depth=(int)16, signed=(boolean)true,
> channel-positions=(GstAudioChannelPosition)<
> GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
> GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
> GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER, GST_AUDIO_CHANNEL_POSITION_LFE,
> GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,
> GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT >, rate=(int)48000 ]/*
>
> */ /*
>
> */ /*
>
> */ /*
>
> */ [new_pad()] The Caps of sinkPad of wow filter:/*
>
> */ [ audio/x-raw-int, endianness=(int)1234, signed=(boolean){ true,
> false }, width=(int)16, depth=(int)16, rate=(int){ 8000, 11025, 12000,
> 16000, 22050, 24000, 32000, 44100, 48000 }, channels=(int)[ 1, 2 ],
> endianess=(int)1234 ]/*
>
>
>
>
>
>
>
> [new_pad()] Dynamic pad created, linking parser-filter
>
>
>
>
>
> */[NEW_PAD()] gst_pad_link() returns [-4]/*
>
>
>
> Nokia770-49:/home/user/bin#
>
>
>
> -------------------------------------------------------
>
>
>
> FOR 2 CHANNEL:
>
> --------------------------------------------------------
>
> Nokia770-49:/home/user/bin# ./wav_hell01
> ../media_samples/SigYrtsidua_2ch_48k.wav
>
>
>
> [main()] Calling ... gst_init()
>
>
>
> [main()] AFTER Calling... gst_init()
>
>
>
> [main()] Calling... factory_make( wow)
>
>
>
> [main()] AFTER Calling... factory_make( wow) handle = <358504>
>
>
>
> [main()] Adding wow to the pipeline BIN
>
>
>
> [main()] AFTER Adding wow to the pipeline BIN
>
>
>
>
>
> [main()] Setting to PLAYING
>
>
>
>
>
> [main()] Running
>
>
>
> [GST_MESSAGE_STATE_CHANGED] recvd! old <1> new <2> pending <0>
>
> [GST_MESSAGE_STATE_CHANGED] recvd! old <1> new <2> pending <0>
>
> [GST_MESSAGE_STATE_CHANGED] recvd! old <1> new <2> pending <0>
>
> [GST_MESSAGE_STATE_CHANGED] recvd! old <1> new <2> pending <0>
>
> [GST_MESSAGE_STATE_CHANGED] recvd! old <1> new <2> pending <4>
>
> [GST_MESSAGE_STATE_CHANGED] recvd! old <2> new <3> pending <0>
>
> [GST_MESSAGE_STATE_CHANGED] recvd! old <2> new <3> pending <0>
>
> [GST_MESSAGE_STATE_CHANGED] recvd! old <2> new <3> pending <0>
>
>
>
> */ [new_pad()] The Capabilities of dynamic pad of wavparse:/*
>
> */ [ audio/x-raw-int, endianness=(int)1234, channels=(int)2,
> width=(int)16, depth=(int)16, signed=(boolean)true, rate=(int)48000 ]/*
>
> */ /*
>
> */ /*
>
> */ /*
>
> */ [new_pad()] The Caps of sinkPad of wow filter:/*
>
> */ [ audio/x-raw-int, endianness=(int)1234, signed=(boolean){ true,
> false }, width=(int)16, depth=(int)16, rate=(int){ 8000, 11025, 12000,
> 16000, 22050, 24000, 32000, 44100, 48000 }, channels=(int)[ 1, 2 ],
> endianess=(int)1234 ]/*
>
>
>
>
>
>
>
> [new_pad()] Dynamic pad created, linking parser-filter
>
>
>
>
>
> */[NEW_PAD()] gst_pad_link() returns [0]/*
>
>
>
> #[gst_wow_set_caps] called !!... GstPad = <0x511c0>, GstCaps = <0x65fd0>
>
> #[gst_wow_set_caps] Proposed Capabilities by the stream:
>
> [ audio/x-raw-int, endianness=(int)1234, channels=(int)2,
> width=(int)16, depth=(int)16, signed=(boolean)true, rate=(int)48000 ]
>
>
>
> [GST_MESSAGE_STATE_CHANGED] recvd! old <2> new <3> pending <0>
>
> [GST_MESSAGE_STATE_CHANGED] recvd! old <2> new <3> pending <4>
>
> [GST_MESSAGE_STATE_CHANGED] recvd! old <3> new <4> pending <0>
>
> [GST_MESSAGE_STATE_CHANGED] recvd! old <3> new <4> pending <0>
>
> [GST_MESSAGE_STATE_CHANGED] recvd! old <3> new <4> pending <0>
>
> [GST_MESSAGE_STATE_CHANGED] recvd! old <3> new <4> pending <0>
>
> [GST_MESSAGE_STATE_CHANGED] recvd! old <3> new <4> pending <0>
>
>
>
> [bus_call()] End-of-stream
>
>
>
>
>
> [main()] Returned, stopping playback
>
>
>
>
>
> [main()] Deleting pipeline ... Here wow will also be de-referenced...!
>
>
>
> [main()] AFTER Deleting pipeline ... Here wow will also be
de-referenced...!
>
>
>
>
>
>
>
>
>
>
-----------------------------------------------------------------------------
-----------------
>
>
>
> Please provide help.
>
>
>
> Thanks and regards,
>
> Sharath
>
>
>
> ------------------------------------------------------------------------
>
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