/* 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;

}