/* vim: set sw=2: -*- Mode: C; tab-width: 2; indent-tabs-mode: t; c-basic-offset: 2; c-indent-level: 2 -*- */

 /* GStreamer MythTV Plug-in

  * Copyright (C) <2006> Rosfran Borges <rosfran.borges@indt.org.br>

  *

  * This library is free software; you can redistribute it and/or

  * modify it under the terms of the GNU Library General Public

  * License as published by the Free Software Foundation; either

  * version 2 of the License, or (at your option) any later version.

  *

  * This library is distributed in the hope that it will be useful,

  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  * Library General Public License for more 

  */

 #ifdef HAVE_CONFIG_H

 #include "config.h"

 #endif

 #include "gstmythtvsrc.h"

 #include "myth_file_transfer.h"

 #include "myth_livetv.h"

 #include <gmyth/gmyth_socket.h>

 #include <gmyth/gmyth_tvchain.h>

 #include <string.h>

 #include <unistd.h>

 GST_DEBUG_CATEGORY_STATIC (mythtvsrc_debug);

 #define GST_CAT_DEFAULT mythtvsrc_debug

 #define GST_MYTHTV_ID_NUM		1

 #define MYTHTV_VERSION_DEFAULT		30

 #define MYTHTV_TRANSFER_MAX_WAITS	100

 #define MYTHTV_TRANSFER_MAX_BUFFER	( 32*1024  )

 /* 4*1024 ??? */

 #define MAX_READ_SIZE                   ( 16*1024 )

 #define ENABLE_TIMING_POSITION		1

 /* stablish a maximum iteration value to the IS_RECORDING message */

 static guint wait_to_transfer = 0;

 static const GstElementDetails gst_mythtv_src_details =

 GST_ELEMENT_DETAILS ("MythTV client source",

     "Source/Network",

     "Control and receive data as a client over the network via raw socket connections using the MythTV protocol",

     "Rosfran Borges <rosfran.borges@indt.org.br>");

 static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",

     GST_PAD_SRC,

     GST_PAD_ALWAYS,

     GST_STATIC_CAPS_ANY);

 static GstTask *update_size_task = NULL;

 static GStaticRecMutex update_size_mutex = G_STATIC_REC_MUTEX_INIT;

 enum

 {

   PROP_0,

   PROP_LOCATION,

   PROP_URI,

 #ifndef GST_DISABLE_GST_DEBUG

   PROP_MYTHTV_DBG,

 #endif

   PROP_MYTHTV_VERSION,

   PROP_MYTHTV_LIVE,

   PROP_MYTHTV_LIVEID,

   PROP_MYTHTV_LIVE_CHAINID

 };

 static void gst_mythtv_src_finalize (GObject * gobject);

 static GstFlowReturn gst_mythtv_src_create (GstBaseSrc * psrc,

     guint64 offset, guint size, GstBuffer ** outbuf);

 static gboolean gst_mythtv_src_start (GstBaseSrc * bsrc);

 static gboolean gst_mythtv_src_stop (GstBaseSrc * bsrc);

 static gboolean gst_mythtv_src_get_size (GstBaseSrc * bsrc, guint64 * size);

 static gboolean gst_mythtv_src_is_seekable( GstBaseSrc *base_src );

 static void gst_mythtv_src_set_property (GObject * object, guint prop_id,

     const GValue * value, GParamSpec * pspec);

 static void gst_mythtv_src_get_property (GObject * object, guint prop_id,

     GValue * value, GParamSpec * pspec);

 static void

 gst_mythtv_src_uri_handler_init (gpointer g_iface, gpointer iface_data);

 static gboolean

 gst_mythtv_src_handle_event (GstPad * pad, GstEvent * event);

   static void

 _urihandler_init (GType type)

 {

   static const GInterfaceInfo urihandler_info = {

     gst_mythtv_src_uri_handler_init,

     NULL,

     NULL

   };

   g_type_add_interface_static (type, GST_TYPE_URI_HANDLER, &urihandler_info);

   GST_DEBUG_CATEGORY_INIT (mythtvsrc_debug, "mythtvsrc", 0,

       "MythTV src");

 }

 GST_BOILERPLATE_FULL (GstMythtvSrc, gst_mythtv_src, GstBaseSrc,

     GST_TYPE_BASE_SRC, _urihandler_init);

   static void

 gst_mythtv_src_base_init (gpointer g_class)

 {

   GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);

   gst_element_class_add_pad_template (element_class,

       gst_static_pad_template_get (&srctemplate));

   gst_element_class_set_details (element_class, &gst_mythtv_src_details);

 }

   static void

 gst_mythtv_src_class_init (GstMythtvSrcClass * klass)

 {

   GObjectClass *gobject_class;

   GstBaseSrcClass *gstbasesrc_class;

   gobject_class = (GObjectClass *) klass;

   gstbasesrc_class = (GstBaseSrcClass *) klass;

   gobject_class->set_property = gst_mythtv_src_set_property;

   gobject_class->get_property = gst_mythtv_src_get_property;

   gobject_class->finalize = gst_mythtv_src_finalize;

   g_object_class_install_property

     (gobject_class, PROP_LOCATION,

      g_param_spec_string ("location", "Location",

        "The location. In the form:"

        "\n\t\t\tmyth://a.com/file.nuv"

        "\n\t\t\tmyth://a.com:23223/file.nuv "

        "\n\t\t\ta.com/file.nuv - default scheme 'myth'",

        "", G_PARAM_READWRITE));

   g_object_class_install_property

     (gobject_class, PROP_URI,

      g_param_spec_string ("uri", "Uri",

        "The location in form of a URI (deprecated; use location)",

        "", G_PARAM_READWRITE));

   g_object_class_install_property

     (gobject_class, PROP_MYTHTV_VERSION,

      g_param_spec_int ("mythtv-version", "mythtv-version",

        "Change Myth TV version",

        26, 30, 26, G_PARAM_READWRITE));

   g_object_class_install_property

     (gobject_class, PROP_MYTHTV_LIVEID,

      g_param_spec_int ("mythtv-live-id", "mythtv-live-id",

        "Change Myth TV version",

        0, 200, GST_MYTHTV_ID_NUM, G_PARAM_READWRITE));

   g_object_class_install_property

     (gobject_class, PROP_MYTHTV_LIVE_CHAINID,

      g_param_spec_string ("mythtv-live-chainid", "mythtv-live-chainid",

        "Sets the Myth TV chain ID (from TV Chain)",

        "", G_PARAM_READWRITE));

   g_object_class_install_property

     (gobject_class, PROP_MYTHTV_LIVE,

      g_param_spec_boolean ("mythtv-live", "mythtv-live",

        "Enable MythTV Live TV content streaming",

        FALSE, G_PARAM_READWRITE));

 #ifndef GST_DISABLE_GST_DEBUG

   g_object_class_install_property

     (gobject_class, PROP_MYTHTV_DBG,

      g_param_spec_boolean ("mythtv-debug", "mythtv-debug",

        "Enable MythTV debug messages",

        FALSE, G_PARAM_READWRITE));

 #endif

   gstbasesrc_class->start = gst_mythtv_src_start;

   gstbasesrc_class->stop = gst_mythtv_src_stop;

   gstbasesrc_class->get_size = gst_mythtv_src_get_size;

   gstbasesrc_class->is_seekable = gst_mythtv_src_is_seekable;

   gstbasesrc_class->create = gst_mythtv_src_create;

   GST_DEBUG_CATEGORY_INIT (mythtvsrc_debug, "mythtvsrc", 0,

       "MythTV Client Source");

 }

   static void

 gst_mythtv_src_init (GstMythtvSrc * this, GstMythtvSrcClass * g_class)

 {

   this->file_transfer = NULL;

   this->unique_setup = FALSE;

   this->mythtv_version = MYTHTV_VERSION_DEFAULT;

   this->bytes_read = 0;

   this->content_size = -1;

   this->read_offset = 0;

   this->live_tv = FALSE;

   this->user_agent = g_strdup ("mythtvsrc");

   this->mythtv_caps = NULL;    

   gst_base_src_set_live ( GST_BASE_SRC( this ), TRUE );

   gst_pad_set_event_function (GST_BASE_SRC_PAD(GST_BASE_SRC(this)),

       GST_DEBUG_FUNCPTR (gst_mythtv_src_handle_event));

 }

   static void

 gst_mythtv_src_finalize (GObject * gobject)

 {

   GstMythtvSrc *this = GST_MYTHTV_SRC (gobject);

   g_free (this->user_agent);

   if (this->mythtv_caps) {

     gst_caps_unref (this->mythtv_caps);

     this->mythtv_caps = NULL;

   }

   if (this->file_transfer) {

     g_object_unref (this->file_transfer);

     this->file_transfer = NULL;

   }

   if (this->uri_name) {

     g_free (this->uri_name);

   }

   if (this->user_agent) {

     g_free (this->user_agent);

   }

   if ( update_size_task != NULL ) {

     if ( GST_TASK_STATE( update_size_task ) != GST_TASK_STOPPED )

     	gst_task_stop( update_size_task );

     gst_object_unref( update_size_task );

     update_size_task = NULL;

   }

   G_OBJECT_CLASS (parent_class)->finalize (gobject);

 }

 #if 0

   static guint

 do_seek( GstMythtvSrc *src, guint64 offset, guint size, GstBuffer *outbuf )

 {

   guint64 off_uint64 = myth_file_transfer_seek(src->file_transfer, offset, 1);

   g_print( "[%s] Call MythTV SEEK with offset %llu, got a new one %llu...\n", __FUNCTION__, 

       offset, off_uint64 );

   return off_uint64;

 }

 #endif

   static guint

 do_read_request_response (GstMythtvSrc * src, guint64 offset, guint size, GstBuffer * outbuf)

 {

   guint read = 0;

   guint sizetoread = size; //GST_BUFFER_SIZE (outbuf);

   g_print( "[%s] Reading %d bytes...\n", __FUNCTION__, sizetoread ); 

   /* Loop sending the request:

    * Retry whilst authentication fails and we supply it. */

   ssize_t len = 0;

   //GST_OBJECT_LOCK(src);

   while ( sizetoread > 0 ) {

     len = myth_file_transfer_read( src->file_transfer,

 	GST_BUFFER_DATA (outbuf) + read, sizetoread, TRUE );

     if ( len > 0 ) {

       read += len;

       src->read_offset += read;

       sizetoread -= len;

     } else if ( len < 0 ) {

       goto done;

     }

     else if ( len == 0 ) {

       if ( src->live_tv == FALSE )

 	goto done;

       else

 	goto eos;

     }

     if ( len == sizetoread )

       break;

   }

   if ( read > 0 ) {

     src->bytes_read += read;

     GST_BUFFER_SIZE (outbuf) = read;

   } else if ( read <= 0 || len <= 0 ) {

     if ( src->live_tv == FALSE )

       goto eos;

     else

       goto done;

   }

   //GST_BUFFER_OFFSET (outbuf) = src->read_offset;

   g_print( "[%s]\tBYTES READ (actual) = %d, BYTES READ (cumulative) = %llu, "\

       "OFFSET = %llu, CONTENT SIZE = %llu.\n", __FUNCTION__, read, src->bytes_read, 

       src->read_offset, src->content_size );

   //GST_OBJECT_UNLOCK(src);

   if ( len < 0 ) {

     read = len;

     if ( src->live_tv == FALSE ) 

       goto eos;

     else

       goto done;

   }

   if ( src->bytes_read < src->content_size )

     goto done;

 eos:

   //GST_OBJECT_UNLOCK(src);

   src->eos = TRUE;

 done:

   //GST_OBJECT_UNLOCK(src);

   return read;

 }

   static GstFlowReturn

 gst_mythtv_src_create ( GstBaseSrc * psrc, guint64 offset, 

     guint size, GstBuffer **outbuf )

 {

   GstMythtvSrc *src;

   GstFlowReturn ret = GST_FLOW_OK;

   guint read = 0;

   src = GST_MYTHTV_SRC (psrc);

   //src->do_start = FALSE;

   src->do_start = FALSE;

   gst_task_join ( update_size_task );

   g_print( "[%s]\tBUFFER OFFSET = %llu, BUFFER SIZE = %d.\n", __FUNCTION__, offset, 

       size );

   /* The caller should know the number of bytes and not read beyond EOS. */

   //if (G_UNLIKELY (src->eos))

   //  goto eos;

   //g_static_rec_mutex_lock( &update_size_mutex );

   /* Create the buffer. */

   ret = gst_pad_alloc_buffer ( GST_BASE_SRC_PAD (GST_BASE_SRC (psrc)),

       //      GST_BUFFER_OFFSET_NONE, GST_BASE_SRC (psrc)->blocksize,

       offset, size,

       src->mythtv_caps ? src->mythtv_caps :

       GST_PAD_CAPS (GST_BASE_SRC_PAD (GST_BASE_SRC (psrc))), outbuf );

   //if (G_UNLIKELY (ret == GST_FLOW_UNEXPECTED))

   //  goto eos;

   if (G_UNLIKELY (ret != GST_FLOW_OK))

     goto eos;

   if (G_UNLIKELY (ret == GST_FLOW_ERROR))

     goto read_error;

   read = do_read_request_response ( src, offset, size, *outbuf );

   //g_static_rec_mutex_unlock( &update_size_mutex );

   src->do_start = TRUE;

   gst_task_start ( update_size_task );

 #if 0

   g_static_rec_mutex_lock( &update_size_mutex );

   src->do_start = FALSE;  

   g_static_rec_mutex_unlock( &update_size_mutex );

   GST_TASK_SIGNAL( update_size_task );

 #endif

   //g_static_rec_mutex_unlock( &update_size_mutex );

 #if 0

 #if ENABLE_TIMING_POSITION == 1

   guint64 size_tmp = 0;

   if (src->live_tv == TRUE) {

     //g_usleep( 1000 );

 get_file_pos:

     //g_usleep( 100 );

     size_tmp = myth_file_transfer_get_file_position( src->file_transfer );

     if ( size_tmp > ( src->content_size + MYTHTV_TRANSFER_MAX_BUFFER ) )

       src->content_size = size_tmp;

     else

       goto get_file_pos;

     g_print( "\t[%s]\tGET_POSITION: file_position = %llu\n", 

 	__FUNCTION__, size_tmp);

   }

 #endif

 #endif

   //if (G_UNLIKELY (read < 0))

   //  goto read_error;

   if (G_UNLIKELY(src->eos))

     goto eos;

   else

     goto done;

 done:

   return ret;

 eos:

 #if 0

 #if ENABLE_TIMING_POSITION == 1

   if ( src->live_tv == TRUE ) {

     //g_usleep( 1000 );

     guint64 size_tmp = 0;

 get_file_pos_eos:

     //g_usleep( 100 );

     size_tmp = myth_file_transfer_get_file_position( src->file_transfer );

     if ( size_tmp > ( src->content_size + MYTHTV_TRANSFER_MAX_BUFFER ) )

       src->content_size = size_tmp;

     else

       goto get_file_pos_eos;

     g_print( "\t[%s]\tGET_POSITION: file_position = %llu\n", 

 	__FUNCTION__, size_tmp);

     goto done;

   } else 

 #endif

 #endif

   {

     GST_DEBUG_OBJECT (src, "EOS reached");

     return GST_FLOW_UNEXPECTED;

   }

   /* ERRORS */

 read_error:

   {

     GST_ELEMENT_ERROR (src, RESOURCE, READ,

 	(NULL), ("Could not read any bytes (%i, %s)", read,

 	  src->uri_name));

     return GST_FLOW_ERROR;

   }

   #if 0

 need_pause:

   {

     const gchar *reason = gst_flow_get_name (ret);

     GST_DEBUG_OBJECT (src, "pausing task, reason %s", reason);

     return GST_FLOW_UNEXPECTED;

   }

   #endif

 }

 #if 0

 /* The following two charset mangling functions were copied from gnomevfssrc.

  * Preserve them under the unverified assumption that they do something vaguely

  * worthwhile.

  */

   static char *

 unicodify (const char *str, int len, ...)

 {

   char *ret = NULL, *cset;

   va_list args;

   gsize bytes_read, bytes_written;

   if (g_utf8_validate (str, len, NULL))

     return g_strndup (str, len >= 0 ? len : strlen (str));

   va_start (args, len);

   while ((cset = va_arg (args, char *)) != NULL)

   {

     if (!strcmp (cset, "locale"))

       ret = g_locale_to_utf8 (str, len, &bytes_read, &bytes_written, NULL);

     else

       ret = g_convert (str, len, "UTF-8", cset,

 	  &bytes_read, &bytes_written, NULL);

     if (ret)

       break;

   }

   va_end (args);

   return ret;

 }

   static char *

 gst_mythtv_src_unicodify (const char *str)

 {

   return unicodify (str, -1, "locale", "ISO-8859-1", NULL);

 }

 #endif

 void

 update_size_func( void *mythtv_data ) 

 {

   GstMythtvSrc *src;

   g_return_if_fail( mythtv_data != NULL );

   src = GST_MYTHTV_SRC ( mythtv_data );

   if ( src->do_start ) {

  #if ENABLE_TIMING_POSITION == 1

   guint64 size_tmp = 0;

   if (src->live_tv == TRUE) {

 get_file_pos:

     //g_usleep( 50 );

     size_tmp = myth_file_transfer_get_file_position( src->file_transfer );

     if ( size_tmp > ( src->content_size + MYTHTV_TRANSFER_MAX_BUFFER ) )

       src->content_size = size_tmp;

     else

       goto get_file_pos;

     g_print( "\t[%s]\tGET_POSITION: file_position = %llu\n",

 	__FUNCTION__, size_tmp );

   }

 #endif

 }

   gst_task_pause( update_size_task );

  // src->do_start = FALSE;

   //GST_TASK_SIGNAL( update_size_task );

 }

 /* create a socket for connecting to remote server */

   static gboolean

 gst_mythtv_src_start ( GstBaseSrc * bsrc )

 {

   GstMythtvSrc *src = GST_MYTHTV_SRC (bsrc);

   GString *chain_id_local = NULL;

   gboolean ret = TRUE;

 #if 0

   if (src->live_tv == TRUE && src->file_transfer != NULL) {

     guint64 size_tmp = myth_file_transfer_get_file_position( src->file_transfer );

     if (size_tmp > src->content_size)

       src->content_size = size_tmp;

     g_print( "\t[%s]\tGET_POSITION: file_position = %llu\n", 

 	__FUNCTION__, size_tmp);

   }

 #endif

   if (src->unique_setup == FALSE) {

     src->unique_setup = TRUE;

   } else {

     goto done;

   }

   //GST_OBJECT_LOCK(src);

   if ( src->live_tv ) {

     src->spawn_livetv = myth_livetv_new( );

     if ( myth_livetv_setup( src->spawn_livetv ) == FALSE ) {

     	ret = FALSE;

     	goto init_failed;

     }

     /* set up the uri variable */

     src->uri_name = g_strdup( src->spawn_livetv->proginfo->pathname->str );

     chain_id_local = gmyth_tvchain_get_id( src->spawn_livetv->tvchain );

     if ( chain_id_local != NULL ) {

       src->live_chain_id = g_strdup( chain_id_local->str );

       g_print( "\t[%s]\tLocal chain ID = %s.\n", __FUNCTION__, src->live_chain_id );

     }

     src->live_tv_id = src->spawn_livetv->remote_encoder->recorder_num;

     g_print ( "[%s] LiveTV id = %d, URI path = %s.\n", __FUNCTION__, src->live_tv_id, src->uri_name );

   }

   src->file_transfer = myth_file_transfer_new( src->live_tv_id, 

       g_string_new( src->uri_name ), -1, src->mythtv_version );

   if ( src->file_transfer == NULL ) {

     //GST_OBJECT_UNLOCK(src);

     goto init_failed;

   }

   if ( src->live_tv ) {

     g_print ( "[%s] GST MYTHTVSRC: live_chain_id = %s\n", __FUNCTION__, src->live_chain_id );

     /* sets the MythSocket to the FileTransfer */

     //ret = myth_file_transfer_livetv_setup( &(src->file_transfer), src->spawn_livetv->remote_encoder->myth_socket );

   }

   /* sets the Playback monitor connection */

   ret = myth_file_transfer_playback_setup( &(src->file_transfer), src->live_tv );

   if ( src->live_tv == TRUE && ret == TRUE ) {

     /* loop finished, set the max tries variable to zero again... */

     wait_to_transfer = 0;

     while ( wait_to_transfer++ < MYTHTV_TRANSFER_MAX_WAITS && ( myth_file_transfer_is_recording( src->file_transfer ) == FALSE 

 	  /*|| ( myth_file_transfer_get_file_position( src->file_transfer ) < ( src->content_size + 327680 ) )*/ ) )

       g_usleep( 100 );

   }

   /* sets the FileTransfer instance connection (video/audio download) */

   ret = myth_file_transfer_setup( &(src->file_transfer), src->live_tv );

   if ( ret == FALSE ) {

     //GST_OBJECT_UNLOCK(src);

 #ifndef GST_DISABLE_GST_DEBUG  

     if ( src->mythtv_msgs_dbg )

       g_printerr( "MythTV FileTransfer request failed when setting up socket connection!\n" );  	  

 #endif

     goto begin_req_failed;

   }

   src->content_size = src->file_transfer->filesize;

   //GST_OBJECT_UNLOCK(src);

   update_size_task = gst_task_create( update_size_func, src );

   gst_task_set_lock( update_size_task, &update_size_mutex );

   g_print( "[%s] Update Size task = %s\n", __FUNCTION__, gst_task_start( update_size_task ) && 

   		GST_TASK_STATE( update_size_task ) == GST_TASK_STARTED ? "OK !" : "ERROR!!!" );

   src->do_start = TRUE;

 #if 0

   const char *str_value;

   gint gint_value;

   str_value = ne_get_response_header (src->request, "myth-metaint");

   if (str_value) {

     if ( sscanf (str_value, "%d", &gint_value) == 1 ) {

       if (src->myth_caps) {

 	gst_caps_unref (src->myth_caps);

 	src->myth_caps = NULL;

       }

       src->myth_metaint = gint_value;

 #endif

       //src->mythtv_caps = gst_caps_new_simple ("application/x-gst_ff-nuv", NULL);

       //   }

       // }

 done:

       return TRUE;

       /* ERRORS */

 init_failed:

       {

       	if (src->spawn_livetv != NULL )

 	  g_object_unref( src->spawn_livetv );

 	GST_ELEMENT_ERROR (src, LIBRARY, INIT,

 	    (NULL), ("Could not initialize MythTV library (%i, %s)", ret, src->uri_name));

 	return FALSE;

       }

 begin_req_failed:

       {

 	GST_ELEMENT_ERROR (src, LIBRARY, INIT,

 	    (NULL), ("Could not begin request sent to MythTV server (%i, %s)", ret, src->uri_name));

 	return FALSE;

       }

 }

 #if 0

 static gboolean

 gst_mythtv_src_get_size (GstBaseSrc * bsrc, guint64 * size)

 {

   GstMythtvSrc *src;

   gboolean ret = FALSE;

   src = GST_MYTHTV_SRC (bsrc);

   g_static_rec_mutex_lock( &update_size_mutex );

   src->do_start = FALSE;  

   g_static_rec_mutex_unlock( &update_size_mutex );

   GST_TASK_SIGNAL( update_size_task );

   while (1) {

     g_static_rec_mutex_lock( &update_size_mutex );

     if ( !src->do_start ) {

       g_print( "[%s] GET SIZE: do_start? == %s\n", __FUNCTION__, src->do_start ? "YES" : "NO" );

       GST_TASK_WAIT( update_size_task );

     } else {

       if (src->content_size <= 0) {

 	g_static_rec_mutex_unlock( &update_size_mutex );

 	goto done;

       }

       *size = src->content_size;

       src->do_start = FALSE;

       g_static_rec_mutex_unlock( &update_size_mutex );

       break;

     }

     g_static_rec_mutex_unlock( &update_size_mutex );

   } // while (1) 

 done:

   return ret;

 }

 #endif

 static gboolean

 gst_mythtv_src_get_size (GstBaseSrc * bsrc, guint64 * size)

 {

   GstMythtvSrc *src;

   gboolean ret = TRUE;

   src = GST_MYTHTV_SRC (bsrc);

   if (src->content_size <= 0)

     ret= FALSE;

   *size = src->content_size;

   return ret;

 }

 /* close the socket and associated resources

  * used both to recover from errors and go to NULL state */

   static gboolean

 gst_mythtv_src_stop (GstBaseSrc * bsrc)

 {

   GstMythtvSrc *src;

   src = GST_MYTHTV_SRC (bsrc);

   if (src->uri_name) {

     g_free (src->uri_name);

     src->uri_name = NULL;

   }

   if (src->mythtv_caps) {

     gst_caps_unref (src->mythtv_caps);

     src->mythtv_caps = NULL;

   }

   src->eos = FALSE;

   return TRUE;

 }

   static gboolean

 gst_mythtv_src_handle_event (GstPad * pad, GstEvent * event)

 {

   GstMythtvSrc *src = GST_MYTHTV_SRC (GST_PAD_PARENT (pad));

   switch (GST_EVENT_TYPE (event)) {

     case GST_EVENT_FLUSH_START:

       src->eos = FALSE;

       break;

       //return TRUE;

 #if 0

 case GST_EVENT_FLUSH_STOP:

       src->do_start = TRUE;

       src->eos = FALSE;

       gst_element_set_state (GST_ELEMENT(src), GST_STATE_NULL);

       //gst_element_set_locked_state (GST_ELEMENT(src), TRUE);

       break;

 #endif

     case GST_EVENT_SEEK:  	  

       {

 	gdouble rate;

 	//gboolean update = TRUE;

 	GstFormat format;

 	GstSeekType cur_type, stop_type;

 	GstSeekFlags flags;

 	gint64 cur = 0, stop = 0;

 	gst_event_parse_seek ( event, &rate, &format,

 	    &flags, &cur_type, &cur,

 	    &stop_type, &stop );

 	g_print( "[%s] Got EVENT_SEEK.\n", __FUNCTION__ );

 	if ( !( flags & GST_SEEK_FLAG_FLUSH ) ) {

 	  g_print( "[%s] Could get the FLAG_FLUSH message.\n", __FUNCTION__ );

 	}

 	//gboolean ret = gst_event_parse_new_segment ( event,

 	//    &update, &rate, &format, &start, &stop,

 	//    &position );

 	//GstFlowReturn flow_ret = gst_mythtv_src_create (GST_BASE_SRC( GST_PAD_PARENT( psrc ) ), 

 	//			cur, stop - cur + 1, GstBuffer)

       } 

     default:

       return gst_pad_event_default (pad, event);

   }

   return gst_pad_event_default (pad, event);

 }

   static gboolean

 gst_mythtv_src_is_seekable( GstBaseSrc *base_src )

 {

   return TRUE;

 }

   static void

 gst_mythtv_src_set_property (GObject * object, guint prop_id,

     const GValue * value, GParamSpec * pspec)

 {

   GstMythtvSrc *mythtvsrc = GST_MYTHTV_SRC (object);

   GST_OBJECT_LOCK (mythtvsrc);

   switch (prop_id) {

     case PROP_URI:

     case PROP_LOCATION:

       {

 	if (!g_value_get_string (value)) {

 	  GST_WARNING ("location property cannot be NULL");

 	  goto done;

 	}

 	if (mythtvsrc->uri_name != NULL) {

 	  g_free (mythtvsrc->uri_name);

 	  mythtvsrc->uri_name = NULL;

 	}

 	mythtvsrc->uri_name = g_value_dup_string (value);

 	break;

       }

 #ifndef GST_DISABLE_GST_DEBUG

     case PROP_MYTHTV_DBG:

       {

 	mythtvsrc->mythtv_msgs_dbg = g_value_get_boolean (value);

 	break;

       }

 #endif

     case PROP_MYTHTV_VERSION:

       {

 	mythtvsrc->mythtv_version = g_value_get_int (value);

 	break;

       }

     case PROP_MYTHTV_LIVEID:

       {

 	mythtvsrc->live_tv_id = g_value_get_int (value);

 	break;

       }

     case PROP_MYTHTV_LIVE:

       {

 	mythtvsrc->live_tv = g_value_get_boolean (value);

 	break;

       }

     case PROP_MYTHTV_LIVE_CHAINID:

       {

 	if (!g_value_get_string (value)) {

 	  GST_WARNING ("MythTV Live chainid property cannot be NULL");

 	  goto done;

 	}

 	if (mythtvsrc->live_chain_id != NULL) {

 	  g_free (mythtvsrc->live_chain_id);

 	  mythtvsrc->live_chain_id = NULL;

 	}

 	mythtvsrc->live_chain_id = g_value_dup_string (value);

 	break;

       }

     default:

       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);

       break;

   }

   GST_OBJECT_UNLOCK (mythtvsrc);

 done:

   return;

 }

   static void

 gst_mythtv_src_get_property (GObject * object, guint prop_id,

     GValue * value, GParamSpec * pspec)

 {

   GstMythtvSrc *mythtvsrc = GST_MYTHTV_SRC (object);

   GST_OBJECT_LOCK (mythtvsrc);

   switch (prop_id) {

     case PROP_URI:

     case PROP_LOCATION:

       {

 	gchar *str = g_strdup( "" );

 	if ( mythtvsrc->uri_name == NULL ) {

 	  g_free (mythtvsrc->uri_name);

 	  mythtvsrc->uri_name = NULL;

 	} else {

 	  str = g_strdup( mythtvsrc->uri_name );

 	}

 	g_value_set_string ( value, str );

 	break;

       }

 #ifndef GST_DISABLE_GST_DEBUG

     case PROP_MYTHTV_DBG:

       g_value_set_boolean ( value, mythtvsrc->mythtv_msgs_dbg );

       break;

 #endif

     case PROP_MYTHTV_VERSION:

       {

 	g_value_set_int ( value, mythtvsrc->mythtv_version );

 	break;

       }

     case PROP_MYTHTV_LIVEID:

       {

 	g_value_set_int ( value, mythtvsrc->live_tv_id );

 	break;

       }

     case PROP_MYTHTV_LIVE:

       g_value_set_boolean ( value, mythtvsrc->live_tv );

       break;

     case PROP_MYTHTV_LIVE_CHAINID:

       {

 	gchar *str = g_strdup( "" );

 	if ( mythtvsrc->live_chain_id == NULL ) {

 	  g_free (mythtvsrc->live_chain_id);

 	  mythtvsrc->live_chain_id = NULL;

 	} else {

 	  str = g_strdup( mythtvsrc->live_chain_id );

 	}

 	g_value_set_string ( value, str );

 	break;

       }

     default:

       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);

       break;

   }

   GST_OBJECT_UNLOCK (mythtvsrc);

 }

 /* entry point to initialize the plug-in

  * initialize the plug-in itself

  * register the element factories and pad templates

  * register the features

  */

   static gboolean

 plugin_init (GstPlugin * plugin)

 {

   return gst_element_register (plugin, "mythtvsrc", GST_RANK_NONE,

       GST_TYPE_MYTHTV_SRC);

 }

 /* this is the structure that gst-register looks for

  * so keep the name plugin_desc, or you cannot get your plug-in registered */

 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,

     GST_VERSION_MINOR,

     "mythtv",

     "lib MythTV src",

     plugin_init, VERSION, "LGPL", "GStreamer", "http://gstreamer.net/")

 /*** GSTURIHANDLER INTERFACE *************************************************/

   static guint 

 gst_mythtv_src_uri_get_type (void)

 {

   return GST_URI_SRC;

 }

   static gchar **

 gst_mythtv_src_uri_get_protocols (void)

 {

   static gchar *protocols[] = { "myth", "myths", NULL };

   return protocols;

 }

   static const gchar *

 gst_mythtv_src_uri_get_uri (GstURIHandler * handler)

 {

   GstMythtvSrc *src = GST_MYTHTV_SRC (handler);

   return src->uri_name;

 }

   static gboolean

 gst_mythtv_src_uri_set_uri (GstURIHandler * handler, const gchar * uri)

 {

   GstMythtvSrc *src = GST_MYTHTV_SRC (handler);

   gchar *protocol;

   protocol = gst_uri_get_protocol (uri);

   if ((strcmp (protocol, "myth") != 0) && (strcmp (protocol, "myths") != 0)) {

     g_free (protocol);

     return FALSE;

   }

   g_free (protocol);

   g_object_set (src, "location", uri, NULL);

   return TRUE;

 }

   static void

 gst_mythtv_src_uri_handler_init (gpointer g_iface, gpointer iface_data)

 {

   GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;

   iface->get_type = gst_mythtv_src_uri_get_type;

   iface->get_protocols = gst_mythtv_src_uri_get_protocols;

   iface->get_uri = gst_mythtv_src_uri_get_uri;

   iface->set_uri = gst_mythtv_src_uri_set_uri;

 }

   void

 size_header_handler (void *userdata, const char *value)

 {

   GstMythtvSrc *src = GST_MYTHTV_SRC (userdata);

   //src->content_size = g_ascii_strtoull (value, NULL, 10);

   GST_DEBUG_OBJECT (src, "content size = %lld bytes", src->content_size);

 }