gst-gmyth/mythsrc/gstmythtvsrc.c
branchtrunk
changeset 613 289e2d11d16c
child 674 2af89a257a86
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gst-gmyth/mythsrc/gstmythtvsrc.c	Tue May 01 21:05:29 2007 +0100
     1.3 @@ -0,0 +1,1259 @@
     1.4 +/* GStreamer MythTV Plug-in
     1.5 + * Copyright (C) <2006> Rosfran Borges <rosfran.borges@indt.org.br>
     1.6 + *
     1.7 + * This library is free software; you can redistribute it and/or
     1.8 + * modify it under the terms of the GNU Library General Public
     1.9 + * License as published by the Free Software Foundation; either
    1.10 + * version 2 of the License, or (at your option) any later version.
    1.11 + *
    1.12 + * This library is distributed in the hope that it will be useful,
    1.13 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.14 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    1.15 + * Library General Public License for more details.
    1.16 + *
    1.17 + * You should have received a copy of the GNU Library General Public
    1.18 + * License along with this library; if not, write to the
    1.19 + * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    1.20 + * Boston, MA 02111-1307, USA.
    1.21 + */
    1.22 +/**
    1.23 + * SECTION:element-mythtvsrc
    1.24 + *
    1.25 + * <refsect2>
    1.26 + * <para>
    1.27 + * MythTVSrc allows to access a remote MythTV backend streaming Video/Audio server,
    1.28 + * and to render audio and video content through a TCP/IP connection to a specific
    1.29 + * port on this server, and based on a known MythTV protocol that is based on 
    1.30 + * some message passing, such as REQUEST_BLOCK on a specified number of bytes, to get
    1.31 + * some chunk of remote file data.
    1.32 + * You should pass the information aboute the remote MythTV backend server 
    1.33 + * through the <link linkend="GstMythTVSrc--location">location</link> property.
    1.34 + * </para>
    1.35 + * <title>Examples</title>
    1.36 + * <para>
    1.37 + * If you want to get the LiveTV content (set channel, TV tuner, RemoteEncoder, 
    1.38 + * Recorder),
    1.39 + * put the following URI:
    1.40 + * 
    1.41 + * <programlisting> 
    1.42 + *  myth://xxx.xxx.xxx.xxx:6543/livetv?channel=BBC
    1.43 + * </programlisting>
    1.44 + *
    1.45 + * This URI will say to the gmyth library to configure the Recorder instance (used to
    1.46 + * change the channel, start the TV multimedia content transmition, etc.), using
    1.47 + * the IP address (xxx.xxx.xxx.xxx) and port number (6543) of the MythTV backend 
    1.48 + * server, and setting the channel name to "BBC". 
    1.49 + * 
    1.50 + * To get a already recorded the MythTV NUV file, put the following URI:
    1.51 + * 
    1.52 + * <programlisting>
    1.53 + *  myth://xxx.xxx.xxx.xxx:6543/filename.nuv
    1.54 + * </programlisting>
    1.55 + *
    1.56 + * This URI will say to the gmyth library to configure the Recorder instance (used to
    1.57 + * change the channel, start the TV multimedia content transmition, etc.), using
    1.58 + * the IP address (xxx.xxx.xxx.xxx) and port number (6543) of the MythTV backend 
    1.59 + * server, and setting the channel name to "BBC".
    1.60 + * 
    1.61 + * Another possible way to use the LiveTV content, and just in the case you want to 
    1.62 + * use the mysql database, put the location URI in the following format:
    1.63 + * 
    1.64 + * <programlisting> 
    1.65 + *  myth://mythtv:mythtv@xxx.xxx.xxx.xxx:6543/?mythconverg&channel=9
    1.66 + * </programlisting>
    1.67 + * 
    1.68 + * Where the first field is the protocol (myth), the second and third are user 
    1.69 + * name (mythtv) and password (mythtv), then backend host name and port number, 
    1.70 + * and the last field is the database name (mythconverg).
    1.71 + * </para>
    1.72 + * </refsect2>
    1.73 + */
    1.74 +#ifdef HAVE_CONFIG_H
    1.75 +#include "config.h"
    1.76 +#endif
    1.77 +
    1.78 +#include "gstmythtvsrc.h"
    1.79 +#include <gmyth/gmyth_file.h>
    1.80 +#include <gmyth/gmyth_file_transfer.h>
    1.81 +#include <gmyth/gmyth_file_local.h>
    1.82 +#include <gmyth/gmyth_livetv.h>
    1.83 +
    1.84 +#include <gmyth/gmyth_socket.h>
    1.85 +#include <gmyth/gmyth_tvchain.h>
    1.86 +
    1.87 +#include <string.h>
    1.88 +#include <unistd.h>
    1.89 +
    1.90 +GST_DEBUG_CATEGORY_STATIC (mythtvsrc_debug);
    1.91 +#define GST_CAT_DEFAULT mythtvsrc_debug
    1.92 +
    1.93 +#define GST_GMYTHTV_ID_NUM                  1
    1.94 +
    1.95 +#define GST_GMYTHTV_CHANNEL_DEFAULT_NUM     (-1)
    1.96 +
    1.97 +#define GMYTHTV_VERSION_DEFAULT			        30
    1.98 +
    1.99 +#define GMYTHTV_TRANSFER_MAX_WAITS          100
   1.100 +
   1.101 +#define GMYTHTV_TRANSFER_MAX_RESENDS        2
   1.102 +
   1.103 +#define GMYTHTV_TRANSFER_MAX_BUFFER         (128*1024)
   1.104 +
   1.105 +#define MAX_READ_SIZE                       (4*1024)
   1.106 +
   1.107 +#define GST_FLOW_ERROR_NO_DATA              (-101)
   1.108 +
   1.109 +#define REQUEST_MAX_SIZE                    (64*1024)
   1.110 +
   1.111 +#define INTERNAL_BUFFER_SIZE                (90*1024)
   1.112 +
   1.113 +static const GstElementDetails gst_mythtv_src_details =
   1.114 +GST_ELEMENT_DETAILS ("MythTV client source",
   1.115 +    "Source/Network",
   1.116 +    "Control and receive data as a client over the network "
   1.117 +    "via raw socket connections using the MythTV protocol",
   1.118 +    "Rosfran Borges <rosfran.borges@indt.org.br>");
   1.119 +
   1.120 +static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
   1.121 +    GST_PAD_SRC,
   1.122 +    GST_PAD_ALWAYS,
   1.123 +    GST_STATIC_CAPS ("video/x-nuv"));
   1.124 +
   1.125 +enum
   1.126 +{
   1.127 +  PROP_0,
   1.128 +  PROP_LOCATION,
   1.129 +#ifndef GST_DISABLE_GST_DEBUG
   1.130 +  PROP_GMYTHTV_DBG,
   1.131 +#endif
   1.132 +  PROP_GMYTHTV_VERSION,
   1.133 +  PROP_GMYTHTV_LIVE,
   1.134 +  PROP_GMYTHTV_LIVEID,
   1.135 +  PROP_GMYTHTV_LIVE_CHAINID,
   1.136 +  PROP_GMYTHTV_ENABLE_TIMING_POSITION,
   1.137 +  PROP_GMYTHTV_CHANNEL_NUM,
   1.138 +  PROP_GMYTHTV_MAX_TRY
   1.139 +};
   1.140 +
   1.141 +static void gst_mythtv_src_clear (GstMythtvSrc *mythtv_src);
   1.142 +
   1.143 +static void gst_mythtv_src_finalize (GObject * gobject);
   1.144 +
   1.145 +static GstFlowReturn gst_mythtv_src_create (GstPushSrc * psrc,
   1.146 +    GstBuffer ** outbuf);
   1.147 +
   1.148 +static gboolean gst_mythtv_src_start (GstBaseSrc * bsrc);
   1.149 +static gboolean gst_mythtv_src_stop (GstBaseSrc * bsrc);
   1.150 +static gboolean gst_mythtv_src_get_size (GstBaseSrc * bsrc, guint64 * size);
   1.151 +static gboolean gst_mythtv_src_is_seekable (GstBaseSrc * push_src);
   1.152 +
   1.153 +static gboolean gst_mythtv_src_do_seek (GstBaseSrc * base,
   1.154 +    GstSegment * segment);
   1.155 +
   1.156 +static GstStateChangeReturn
   1.157 +gst_mythtv_src_change_state (GstElement * element, GstStateChange transition);
   1.158 +
   1.159 +static void gst_mythtv_src_set_property (GObject * object, guint prop_id,
   1.160 +    const GValue * value, GParamSpec * pspec);
   1.161 +static void gst_mythtv_src_get_property (GObject * object, guint prop_id,
   1.162 +    GValue * value, GParamSpec * pspec);
   1.163 +
   1.164 +static void gst_mythtv_src_uri_handler_init (gpointer g_iface,
   1.165 +    gpointer iface_data);
   1.166 +
   1.167 +static gboolean gst_mythtv_src_handle_query (GstPad * pad, GstQuery * query);
   1.168 +
   1.169 +static gboolean gst_mythtv_src_handle_event (GstPad * pad, GstEvent * event);
   1.170 +
   1.171 +static GMythFileReadResult do_read_request_response (GstMythtvSrc * src, guint size,
   1.172 +    GByteArray * data_ptr);
   1.173 +
   1.174 +static void
   1.175 +_urihandler_init (GType type)
   1.176 +{
   1.177 +  static const GInterfaceInfo urihandler_info = {
   1.178 +    gst_mythtv_src_uri_handler_init,
   1.179 +    NULL,
   1.180 +    NULL
   1.181 +  };
   1.182 +
   1.183 +  g_type_add_interface_static (type, GST_TYPE_URI_HANDLER, &urihandler_info);
   1.184 +
   1.185 +  GST_DEBUG_CATEGORY_INIT (mythtvsrc_debug, "mythtvsrc", 0, "MythTV src");
   1.186 +}
   1.187 +
   1.188 +GST_BOILERPLATE_FULL (GstMythtvSrc, gst_mythtv_src, GstPushSrc,
   1.189 +    GST_TYPE_PUSH_SRC, _urihandler_init)
   1.190 +
   1.191 +     static void gst_mythtv_src_base_init (gpointer g_class)
   1.192 +{
   1.193 +  GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
   1.194 +
   1.195 +  gst_element_class_add_pad_template (element_class,
   1.196 +      gst_static_pad_template_get (&srctemplate));
   1.197 +
   1.198 +  gst_element_class_set_details (element_class, &gst_mythtv_src_details);
   1.199 +
   1.200 +  element_class->change_state = gst_mythtv_src_change_state;
   1.201 +
   1.202 +}
   1.203 +
   1.204 +static void
   1.205 +gst_mythtv_src_class_init (GstMythtvSrcClass * klass)
   1.206 +{
   1.207 +  GObjectClass *gobject_class;
   1.208 +  GstPushSrcClass *gstpushsrc_class;
   1.209 +  GstBaseSrcClass *gstbasesrc_class;
   1.210 +
   1.211 +  gobject_class = (GObjectClass *) klass;
   1.212 +  gstbasesrc_class = (GstBaseSrcClass *) klass;
   1.213 +  gstpushsrc_class = (GstPushSrcClass *) klass;
   1.214 +
   1.215 +  gobject_class->set_property = gst_mythtv_src_set_property;
   1.216 +  gobject_class->get_property = gst_mythtv_src_get_property;
   1.217 +  gobject_class->finalize = gst_mythtv_src_finalize;
   1.218 +
   1.219 +  g_object_class_install_property
   1.220 +      (gobject_class, PROP_LOCATION,
   1.221 +      g_param_spec_string ("location", "Location",
   1.222 +          "The location. In the form:"
   1.223 +          "\n\t\t\tmyth://a.com/file.nuv"
   1.224 +          "\n\t\t\tmyth://a.com:23223/file.nuv "
   1.225 +          "\n\t\t\ta.com/file.nuv - default scheme 'myth'",
   1.226 +          "", G_PARAM_READWRITE));
   1.227 +
   1.228 +  g_object_class_install_property
   1.229 +      (gobject_class, PROP_GMYTHTV_VERSION,
   1.230 +      g_param_spec_int ("mythtv-version", "mythtv-version",
   1.231 +          "Change MythTV version", 26, 30, 26, G_PARAM_READWRITE));
   1.232 +
   1.233 +  g_object_class_install_property
   1.234 +      (gobject_class, PROP_GMYTHTV_LIVEID,
   1.235 +      g_param_spec_int ("mythtv-live-id", "mythtv-live-id",
   1.236 +          "Change MythTV version",
   1.237 +          0, 200, GST_GMYTHTV_ID_NUM, G_PARAM_READWRITE));
   1.238 +
   1.239 +  g_object_class_install_property
   1.240 +      (gobject_class, PROP_GMYTHTV_LIVE_CHAINID,
   1.241 +      g_param_spec_string ("mythtv-live-chainid", "mythtv-live-chainid",
   1.242 +          "Sets the MythTV chain ID (from TV Chain)", "", G_PARAM_READWRITE));
   1.243 +
   1.244 +  g_object_class_install_property
   1.245 +      (gobject_class, PROP_GMYTHTV_LIVE,
   1.246 +      g_param_spec_boolean ("mythtv-live", "mythtv-live",
   1.247 +          "Enable MythTV Live TV content streaming", FALSE, G_PARAM_READWRITE));
   1.248 +
   1.249 +  g_object_class_install_property
   1.250 +      (gobject_class, PROP_GMYTHTV_ENABLE_TIMING_POSITION,
   1.251 +      g_param_spec_boolean ("mythtv-enable-timing-position",
   1.252 +          "mythtv-enable-timing-position",
   1.253 +          "Enable MythTV Live TV content size continuous updating", FALSE,
   1.254 +          G_PARAM_READWRITE));
   1.255 +
   1.256 +  g_object_class_install_property
   1.257 +      (gobject_class, PROP_GMYTHTV_CHANNEL_NUM,
   1.258 +      g_param_spec_string ("mythtv-channel", "mythtv-channel",
   1.259 +          "Change MythTV channel number",
   1.260 +          "", G_PARAM_READWRITE));
   1.261 +
   1.262 +  g_object_class_install_property
   1.263 +      (gobject_class, PROP_GMYTHTV_MAX_TRY,
   1.264 +      g_param_spec_int ("max-try", "max-try",
   1.265 +          "Set the max try for get MythTV free recorder",
   1.266 +          0, G_MAXINT, 10,  G_PARAM_READWRITE));
   1.267 +
   1.268 +
   1.269 +#ifndef GST_DISABLE_GST_DEBUG
   1.270 +  g_object_class_install_property
   1.271 +      (gobject_class, PROP_GMYTHTV_DBG,
   1.272 +      g_param_spec_boolean ("mythtv-debug", "mythtv-debug",
   1.273 +          "Enable MythTV debug messages", FALSE, G_PARAM_READWRITE));
   1.274 +#endif
   1.275 +
   1.276 +  gstbasesrc_class->start = gst_mythtv_src_start;
   1.277 +  gstbasesrc_class->stop = gst_mythtv_src_stop;
   1.278 +  gstbasesrc_class->get_size = gst_mythtv_src_get_size;
   1.279 +  gstbasesrc_class->is_seekable = gst_mythtv_src_is_seekable;
   1.280 +
   1.281 +  gstbasesrc_class->do_seek = gst_mythtv_src_do_seek;
   1.282 +  gstpushsrc_class->create = gst_mythtv_src_create;
   1.283 +
   1.284 +  GST_DEBUG_CATEGORY_INIT (mythtvsrc_debug, "mythtvsrc", 0,
   1.285 +      "MythTV Client Source");
   1.286 +}
   1.287 +
   1.288 +static void
   1.289 +gst_mythtv_src_init (GstMythtvSrc * this, GstMythtvSrcClass * g_class)
   1.290 +{
   1.291 +  this->file = NULL;
   1.292 +
   1.293 +  this->unique_setup = FALSE;
   1.294 +
   1.295 +  this->mythtv_version = GMYTHTV_VERSION_DEFAULT;
   1.296 +
   1.297 +  this->state = GST_MYTHTV_SRC_FILE_TRANSFER;
   1.298 +
   1.299 +  this->bytes_read = 0;
   1.300 +
   1.301 +  this->prev_content_size = 0;
   1.302 +
   1.303 +  this->content_size = 0;
   1.304 +  this->read_offset = 0;
   1.305 +
   1.306 +  this->content_size_last = 0;
   1.307 +
   1.308 +  this->live_tv = FALSE;
   1.309 +
   1.310 +  this->enable_timing_position = FALSE;
   1.311 +  this->update_prog_chain = FALSE;
   1.312 +
   1.313 +  this->user_agent = g_strdup ("mythtvsrc");
   1.314 +  this->update_prog_chain = FALSE;
   1.315 +
   1.316 +  this->channel_name = NULL;
   1.317 +
   1.318 +  this->eos = FALSE;
   1.319 +
   1.320 +  this->bytes_queue = NULL;
   1.321 +
   1.322 +  this->wait_to_transfer = 0;
   1.323 +  this->try_number = 0;
   1.324 +  this->max_try = 10;
   1.325 +
   1.326 +  gst_base_src_set_format (GST_BASE_SRC (this), GST_FORMAT_BYTES);
   1.327 +
   1.328 +  gst_pad_set_event_function (GST_BASE_SRC_PAD (GST_BASE_SRC (this)),
   1.329 +      gst_mythtv_src_handle_event);
   1.330 +  gst_pad_set_query_function (GST_BASE_SRC_PAD (GST_BASE_SRC (this)),
   1.331 +      gst_mythtv_src_handle_query);
   1.332 +
   1.333 +}
   1.334 +
   1.335 +static void
   1.336 +gst_mythtv_src_clear (GstMythtvSrc *mythtv_src)
   1.337 +{
   1.338 +  mythtv_src->unique_setup = FALSE;
   1.339 +  mythtv_src->try_number = 0;
   1.340 +
   1.341 +  if (mythtv_src->spawn_livetv) {
   1.342 +    g_object_unref (mythtv_src->spawn_livetv);
   1.343 +    mythtv_src->spawn_livetv = NULL;
   1.344 +  }
   1.345 +
   1.346 +  if (mythtv_src->file) {
   1.347 +    g_object_unref (mythtv_src->file);
   1.348 +    mythtv_src->file = NULL;
   1.349 +  }
   1.350 +
   1.351 +  if (mythtv_src->backend_info) {
   1.352 +    g_object_unref (mythtv_src->backend_info);
   1.353 +    mythtv_src->backend_info = NULL;
   1.354 +  }
   1.355 +
   1.356 +  if (mythtv_src->bytes_queue) {
   1.357 +    g_byte_array_free (mythtv_src->bytes_queue, TRUE);
   1.358 +    mythtv_src->bytes_queue = NULL;
   1.359 +  }
   1.360 +  
   1.361 +}
   1.362 +
   1.363 +static void
   1.364 +gst_mythtv_src_finalize (GObject * gobject)
   1.365 +{
   1.366 +  GstMythtvSrc *this = GST_MYTHTV_SRC (gobject);
   1.367 +
   1.368 +  gst_mythtv_src_clear (this);
   1.369 +
   1.370 +  if (this->uri_name) {
   1.371 +    g_free (this->uri_name);
   1.372 +    this->uri_name = NULL;
   1.373 +  }
   1.374 +
   1.375 +  if (this->user_agent) {
   1.376 +    g_free (this->user_agent);
   1.377 +    this->user_agent = NULL;
   1.378 +  }
   1.379 +
   1.380 +  G_OBJECT_CLASS (parent_class)->finalize (gobject);
   1.381 +}
   1.382 +
   1.383 +static GMythFileReadResult
   1.384 +do_read_request_response (GstMythtvSrc * src, guint size, GByteArray *data_ptr)
   1.385 +{
   1.386 +  gint read = 0;
   1.387 +  guint sizetoread = size;
   1.388 +  gint max_iters = GMYTHTV_TRANSFER_MAX_RESENDS;
   1.389 +  GMythFileReadResult result;
   1.390 +
   1.391 +  GST_LOG_OBJECT (src, "Starting: Reading %d bytes...", sizetoread);
   1.392 +
   1.393 +  /* Loop sending the Myth File Transfer request:
   1.394 +   * Retry whilst authentication fails and we supply it. */
   1.395 +
   1.396 +  while (sizetoread == size && --max_iters > 0) {
   1.397 +    /* if ( gmyth_backend_info_is_local_file(src->backend_info) ) */
   1.398 +    if ( IS_GMYTH_FILE_LOCAL(src->file) )
   1.399 +      result = gmyth_file_local_read ( GMYTH_FILE_LOCAL(src->file),
   1.400 +          data_ptr, sizetoread, src->live_tv);      
   1.401 +    else if ( IS_GMYTH_FILE_TRANSFER(src->file) )
   1.402 +      result = gmyth_file_transfer_read ( GMYTH_FILE_TRANSFER(src->file),
   1.403 +          data_ptr, sizetoread, src->live_tv);
   1.404 +
   1.405 +    if (data_ptr->len > 0) {
   1.406 +      read += data_ptr->len;
   1.407 +      sizetoread -= data_ptr->len;
   1.408 +    } else if (data_ptr->len < 0) {
   1.409 +      if (src->live_tv == FALSE) {
   1.410 +        result = GMYTH_FILE_READ_EOF;
   1.411 +        goto eos;
   1.412 +      } else {
   1.413 +        if (result == GMYTH_FILE_READ_ERROR) {  /* -314 */
   1.414 +          GST_INFO_OBJECT (src, "[LiveTV] FileTransfer READ_ERROR!");
   1.415 +          goto done;
   1.416 +        } else if (result == GMYTH_FILE_READ_NEXT_PROG_CHAIN) {      /* -315 */
   1.417 +          GST_INFO_OBJECT (src,
   1.418 +              "[LiveTV] FileTransfer - Go to the next program chain!");
   1.419 +          continue;
   1.420 +        }
   1.421 +        goto done;
   1.422 +      }
   1.423 +
   1.424 +    } else if (data_ptr->len == 0)
   1.425 +      goto done;
   1.426 +
   1.427 +    if (read == sizetoread)
   1.428 +      goto done;
   1.429 +  }
   1.430 +
   1.431 +  if ((read < 0 && !src->live_tv) || max_iters == 0){
   1.432 +    result = GMYTH_FILE_READ_EOF;
   1.433 +    goto eos;
   1.434 +  }
   1.435 +
   1.436 +  goto done;
   1.437 +
   1.438 +eos:
   1.439 +  src->eos = TRUE;
   1.440 +
   1.441 +done:
   1.442 +  return result;
   1.443 +}
   1.444 +
   1.445 +static GstFlowReturn
   1.446 +gst_mythtv_src_create (GstPushSrc * psrc, GstBuffer ** outbuf)
   1.447 +{
   1.448 +  GstMythtvSrc *src;
   1.449 +  GstFlowReturn ret = GST_FLOW_OK;
   1.450 +  guint buffer_size_inter = 0;
   1.451 +
   1.452 +  src = GST_MYTHTV_SRC (psrc);
   1.453 +
   1.454 +  /* The caller should know the number of bytes and not read beyond EOS. */
   1.455 +  if (G_UNLIKELY (src->eos))
   1.456 +    goto eos;
   1.457 +  if (G_UNLIKELY (src->update_prog_chain))
   1.458 +    goto change_progchain;
   1.459 +
   1.460 +  GST_DEBUG_OBJECT (src, "offset = %" G_GUINT64_FORMAT ", size = %d...",
   1.461 +      src->read_offset, MAX_READ_SIZE);
   1.462 +
   1.463 +  GST_DEBUG_OBJECT (src, "Create: buffer_remain: %d, buffer_size = %d.",
   1.464 +      (gint) src->buffer_remain, src->bytes_queue->len);
   1.465 +
   1.466 +program_chain_changed:
   1.467 +  /* just get from the byte array, no network effort... */
   1.468 +  if ((src->buffer_remain = src->bytes_queue->len) < MAX_READ_SIZE) {
   1.469 +  	GByteArray *buffer;
   1.470 +    GMythFileReadResult result = GMYTH_FILE_READ_OK;
   1.471 +  	
   1.472 +    buffer = NULL;
   1.473 +    buffer_size_inter = (INTERNAL_BUFFER_SIZE - src->buffer_remain);
   1.474 +
   1.475 +    if (buffer_size_inter > REQUEST_MAX_SIZE)
   1.476 +      buffer_size_inter = REQUEST_MAX_SIZE;
   1.477 +
   1.478 +    buffer = g_byte_array_new ();
   1.479 +
   1.480 +    result = do_read_request_response (src, buffer_size_inter, buffer);
   1.481 +
   1.482 +    if (G_UNLIKELY (buffer->len < 0)) {
   1.483 +    	
   1.484 +    	if (buffer != NULL) {
   1.485 +	      g_byte_array_free (buffer, TRUE);
   1.486 +	      buffer = NULL;
   1.487 +	    }
   1.488 +	    
   1.489 +      if (src->live_tv || ( result == GMYTH_FILE_READ_NEXT_PROG_CHAIN ))
   1.490 +        goto change_progchain;
   1.491 +      else
   1.492 +        goto read_error;
   1.493 +    } else if (G_UNLIKELY (read == 0)) {
   1.494 +    	
   1.495 +    	if (buffer != NULL) {
   1.496 +	      g_byte_array_free (buffer, TRUE);
   1.497 +	      buffer = NULL;
   1.498 +	    }
   1.499 +	    
   1.500 +      if (!src->live_tv)
   1.501 +        goto done;
   1.502 +      else
   1.503 +        goto program_chain_changed;
   1.504 +    }
   1.505 +
   1.506 +    if (G_UNLIKELY (src->update_prog_chain))
   1.507 +    {
   1.508 +    	if (buffer != NULL) {
   1.509 +	      g_byte_array_free (buffer, TRUE);
   1.510 +	      buffer = NULL;
   1.511 +	    }
   1.512 +      goto change_progchain;      
   1.513 +    }
   1.514 +
   1.515 +    src->bytes_queue =
   1.516 +        g_byte_array_append (src->bytes_queue, buffer->data, buffer->len);
   1.517 +    if (buffer->len > buffer_size_inter)
   1.518 +      GST_WARNING_OBJECT (src,
   1.519 +          "INCREASED buffer size! Backend sent more than we ask him... (%d)",
   1.520 +          abs (buffer->len - buffer_size_inter));
   1.521 +
   1.522 +    src->buffer_remain += buffer->len;
   1.523 +
   1.524 +    if (buffer != NULL) {
   1.525 +      g_byte_array_free (buffer, TRUE);
   1.526 +      buffer = NULL;
   1.527 +    }
   1.528 +
   1.529 +    GST_DEBUG_OBJECT (src,
   1.530 +        "BYTES READ (actual) = %d, BYTES READ (cumulative) = %llu, "
   1.531 +        "OFFSET = %llu, CONTENT SIZE = %llu.", read,
   1.532 +        src->bytes_read, src->read_offset, src->content_size);
   1.533 +
   1.534 +  }
   1.535 +
   1.536 +  guint buffer_size =
   1.537 +      (src->buffer_remain < MAX_READ_SIZE) ? src->buffer_remain : MAX_READ_SIZE;
   1.538 +
   1.539 +  *outbuf = gst_buffer_new ();
   1.540 +
   1.541 +  /* gets the first buffer_size bytes from the byte array buffer variable */
   1.542 +  /* guint8 *buf = g_memdup( src->bytes_queue->data, buffer_size ); */
   1.543 +
   1.544 +  GST_DEBUG_OBJECT (src, "read from network? %s!, buffer_remain = %d",
   1.545 +      (buffer_size_inter ==
   1.546 +          0) ? "NO, got from buffer" : "YES, go see the backend's log file",
   1.547 +      src->buffer_remain);
   1.548 +
   1.549 +  GST_BUFFER_SIZE (*outbuf) = buffer_size;
   1.550 +  GST_BUFFER_MALLOCDATA (*outbuf) = g_malloc0 (GST_BUFFER_SIZE (*outbuf));
   1.551 +  GST_BUFFER_DATA (*outbuf) = GST_BUFFER_MALLOCDATA (*outbuf);
   1.552 +  g_memmove (GST_BUFFER_DATA ((*outbuf)), src->bytes_queue->data,
   1.553 +      GST_BUFFER_SIZE (*outbuf));
   1.554 +  GST_BUFFER_OFFSET (*outbuf) = src->read_offset;
   1.555 +  GST_BUFFER_OFFSET_END (*outbuf) =
   1.556 +      src->read_offset + GST_BUFFER_SIZE (*outbuf);
   1.557 +
   1.558 +  src->buffer_remain -= GST_BUFFER_SIZE (*outbuf);
   1.559 +
   1.560 +  src->read_offset += GST_BUFFER_SIZE (*outbuf);
   1.561 +  src->bytes_read += GST_BUFFER_SIZE (*outbuf);
   1.562 +  GST_DEBUG_OBJECT (src, "Buffer output with size: %d",
   1.563 +      GST_BUFFER_SIZE (*outbuf));
   1.564 +
   1.565 +  /* flushs the newly buffer got from byte array */
   1.566 +  src->bytes_queue =
   1.567 +      g_byte_array_remove_range (src->bytes_queue, 0, buffer_size);
   1.568 +
   1.569 +  GST_DEBUG_OBJECT ( src, "Got buffer: BUFFER --->SIZE = %d, OFFSET = %llu, "
   1.570 +      "OFFSET_END = %llu.", GST_BUFFER_SIZE (*outbuf),
   1.571 +      GST_BUFFER_OFFSET (*outbuf), GST_BUFFER_OFFSET_END (*outbuf) );
   1.572 +
   1.573 +  GST_DEBUG_OBJECT (src, "CONTENT_SIZE = %llu, BYTES_READ = %llu.",
   1.574 +      src->content_size, src->bytes_read);
   1.575 +
   1.576 +  if ( G_UNLIKELY (src->eos) || ( !src->live_tv
   1.577 +          && ( src->bytes_read >= src->content_size ) ) )
   1.578 +    goto eos;
   1.579 +
   1.580 +done:
   1.581 +  {
   1.582 +    const gchar *reason = gst_flow_get_name (ret);
   1.583 +
   1.584 +    GST_DEBUG_OBJECT (src, "DONE task, reason %s", reason);
   1.585 +    return ret;
   1.586 +  }
   1.587 +eos:
   1.588 +  {
   1.589 +    const gchar *reason = gst_flow_get_name (ret);
   1.590 +
   1.591 +    GST_DEBUG_OBJECT (src, "pausing task, reason %s", reason);
   1.592 +    return GST_FLOW_UNEXPECTED;
   1.593 +  }
   1.594 +  /* ERRORS */
   1.595 +read_error:
   1.596 +  {
   1.597 +    GST_ELEMENT_ERROR (src, RESOURCE, READ,
   1.598 +        (NULL), ("Could not read any bytes (%i, %s)", read, src->uri_name));
   1.599 +    return GST_FLOW_ERROR;
   1.600 +  }
   1.601 +change_progchain:
   1.602 +  {
   1.603 +    GST_ELEMENT_ERROR (src, RESOURCE, READ,
   1.604 +        (NULL), ("Seek failed, go to the next program info... (%i, %s)", read,
   1.605 +            src->uri_name));
   1.606 +
   1.607 +/*
   1.608 +    TODO: need to send a new segment event to NUVDemux? 
   1.609 +    gst_pad_push_event (GST_BASE_SRC_PAD (GST_BASE_SRC (psrc)),
   1.610 +        gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_TIME, 0, -1, 0));
   1.611 +*/
   1.612 +
   1.613 +    goto program_chain_changed;
   1.614 +  }
   1.615 +
   1.616 +}
   1.617 +
   1.618 +gint64
   1.619 +gst_mythtv_src_get_position (GstMythtvSrc * src)
   1.620 +{
   1.621 +
   1.622 +  gint64 size_tmp = 0;
   1.623 +  guint max_tries = 2;
   1.624 +
   1.625 +  if (src->live_tv == TRUE && (abs (src->content_size - src->bytes_read) <
   1.626 +          GMYTHTV_TRANSFER_MAX_BUFFER)) {
   1.627 +
   1.628 +  get_file_pos:
   1.629 +    g_usleep (10);
   1.630 +    size_tmp = gmyth_recorder_get_file_position (src->spawn_livetv->recorder);
   1.631 +    if (size_tmp > (src->content_size + GMYTHTV_TRANSFER_MAX_BUFFER))
   1.632 +      src->content_size = size_tmp;
   1.633 +    else if (size_tmp > 0 && --max_tries > 0)
   1.634 +      goto get_file_pos;
   1.635 +    GST_LOG_OBJECT (src, "GET_POSITION: file_position = %lld", size_tmp);
   1.636 +    /* sets the last content size amount before it can be updated */
   1.637 +    src->prev_content_size = src->content_size;
   1.638 +  }
   1.639 +
   1.640 +  return src->content_size;
   1.641 +
   1.642 +}
   1.643 +
   1.644 +static gboolean
   1.645 +gst_mythtv_src_do_seek (GstBaseSrc * base, GstSegment * segment)
   1.646 +{
   1.647 +  GstMythtvSrc *src = GST_MYTHTV_SRC (base);
   1.648 +  gint64 new_offset = -1;
   1.649 +  gint64 actual_seek = segment->start;
   1.650 +  gboolean ret = TRUE;
   1.651 +
   1.652 +  GST_LOG_OBJECT (src, "seek, segment: %" GST_SEGMENT_FORMAT, segment);
   1.653 +
   1.654 +  if (segment->format == GST_FORMAT_TIME) {
   1.655 +    goto done;
   1.656 +  }
   1.657 +  GST_LOG_OBJECT (src,
   1.658 +      "Trying to seek at the value (actual_seek = %lld, read_offset = %lld)",
   1.659 +      actual_seek, src->read_offset);
   1.660 +  /* verify if it needs to seek */
   1.661 +  if (src->read_offset != actual_seek) {
   1.662 +    
   1.663 +    /* if ( gmyth_backend_info_is_local_file(src->backend_info) ) */
   1.664 +    if ( IS_GMYTH_FILE_LOCAL(src->file) )
   1.665 +      new_offset =
   1.666 +          gmyth_file_local_seek ( GMYTH_FILE_LOCAL(src->file), segment->start, G_SEEK_SET);
   1.667 +    else if ( IS_GMYTH_FILE_TRANSFER(src->file) )
   1.668 +      new_offset =
   1.669 +          gmyth_file_transfer_seek ( GMYTH_FILE_TRANSFER(src->file), segment->start, SEEK_SET);
   1.670 +
   1.671 +    GST_LOG_OBJECT (src,
   1.672 +        "Segment offset start = %lld, SRC Offset = %lld, NEW actual backend SEEK Offset = %lld.",
   1.673 +        segment->start, src->read_offset, new_offset);
   1.674 +    if (G_UNLIKELY (new_offset < 0)) {
   1.675 +      ret = FALSE;
   1.676 +      if (!src->live_tv)
   1.677 +        goto eos;
   1.678 +    }
   1.679 +
   1.680 +    src->read_offset = new_offset;
   1.681 +
   1.682 +    if (ret == FALSE) {
   1.683 +      GST_INFO_OBJECT (src, "Failed to set the SEEK on segment!");
   1.684 +    }
   1.685 +
   1.686 +  }
   1.687 +
   1.688 +done:
   1.689 +  return ret;
   1.690 +
   1.691 +eos:
   1.692 +  {
   1.693 +    GST_DEBUG_OBJECT (src, "EOS found on seeking!!!");
   1.694 +    return FALSE;
   1.695 +  }
   1.696 +
   1.697 +}
   1.698 +
   1.699 +/* create a socket for connecting to remote server */
   1.700 +static gboolean
   1.701 +gst_mythtv_src_start (GstBaseSrc * bsrc)
   1.702 +{
   1.703 +  GstMythtvSrc *src = GST_MYTHTV_SRC (bsrc);
   1.704 +
   1.705 +  GString *chain_id_local = NULL;  
   1.706 +  GMythURI *gmyth_uri = NULL;
   1.707 +  gboolean ret = TRUE;
   1.708 +
   1.709 +  if (src->unique_setup == FALSE) {
   1.710 +    src->unique_setup = TRUE;
   1.711 +  } else {
   1.712 +    goto done;
   1.713 +  }
   1.714 +  
   1.715 +  gmyth_uri = gmyth_uri_new_with_value (src->uri_name);
   1.716 +  src->backend_info = gmyth_backend_info_new_with_uri (src->uri_name);
   1.717 +  src->live_tv = gmyth_uri_is_livetv( gmyth_uri );
   1.718 +  /* testing UPnP... */
   1.719 +  /* gmyth_backend_info_set_hostname( src->backend_info, NULL ); */
   1.720 +  if ( src->live_tv ) {
   1.721 +    src->spawn_livetv = gmyth_livetv_new (src->backend_info);
   1.722 +    
   1.723 +    gchar* ch = gmyth_uri_get_channel_name( gmyth_uri );
   1.724 +    if ( ch != NULL )
   1.725 +    	src->channel_name = ch;
   1.726 +    	
   1.727 +    if (src->channel_name != NULL) {
   1.728 +      if (gmyth_livetv_channel_name_setup (src->spawn_livetv, src->channel_name) == FALSE) {
   1.729 +        GST_INFO_OBJECT (src, "LiveTV setup felt down on error");
   1.730 +        ret = FALSE;
   1.731 +        goto init_failed;
   1.732 +      }
   1.733 +    } else {
   1.734 +      if (gmyth_livetv_setup (src->spawn_livetv) == FALSE) {
   1.735 +        GST_INFO_OBJECT (src, "LiveTV setup felt down on error");
   1.736 +        ret = FALSE;
   1.737 +        goto init_failed;
   1.738 +      }
   1.739 +    }
   1.740 +
   1.741 +    /* testing change channel... */
   1.742 +    /* gmyth_recorder_change_channel( src->spawn_livetv->recorder, CHANNEL_DIRECTION_UP ); */
   1.743 +
   1.744 +    src->file = GMYTH_FILE( gmyth_livetv_create_file_transfer (src->spawn_livetv) );
   1.745 +
   1.746 +    if (NULL == src->file) {
   1.747 +      GST_INFO_OBJECT (src, "[LiveTV] FileTransfer equals to NULL");
   1.748 +      ret = FALSE;
   1.749 +      goto init_failed;
   1.750 +    }
   1.751 +    
   1.752 +    /* Check if the file is local to this specific client renderer */
   1.753 +    if ( gmyth_uri_is_local_file(gmyth_uri) )
   1.754 +      ret = gmyth_file_local_open( GMYTH_FILE_LOCAL(src->file) );
   1.755 +    else
   1.756 +      ret = gmyth_file_transfer_open( GMYTH_FILE_TRANSFER(src->file), src->spawn_livetv->uri != NULL ? 
   1.757 +                gmyth_uri_get_path(src->spawn_livetv->uri) : 
   1.758 +                src->spawn_livetv->proginfo->pathname->str );
   1.759 +    
   1.760 +    /* sets the mythtvsrc "location" property */
   1.761 +    g_object_set (src, "location", gmyth_file_get_uri (src->file), NULL);
   1.762 +
   1.763 +		if ( !ret )
   1.764 +		{
   1.765 +			GST_INFO_OBJECT (src, "Error: couldn't open the FileTransfer from LiveTV source!" );
   1.766 +			g_object_unref( src->file );
   1.767 +			src->file = NULL;
   1.768 +			goto init_failed;
   1.769 +		}
   1.770 +  } else {
   1.771 +    
   1.772 +    /* Check if the file is local to this specific client renderer, and tries to open
   1.773 +     * a local connection
   1.774 +     */
   1.775 +    if ( gmyth_uri_is_local_file(gmyth_uri) )
   1.776 +    {
   1.777 +      src->file = GMYTH_FILE(gmyth_file_local_new(src->backend_info));
   1.778 +      ret = gmyth_file_local_open ( GMYTH_FILE_LOCAL( src->file ) );
   1.779 +    } else {
   1.780 +      src->file = GMYTH_FILE(gmyth_file_transfer_new(src->backend_info));
   1.781 +      ret = gmyth_file_transfer_open ( GMYTH_FILE_TRANSFER(src->file), src->uri_name );
   1.782 +    }
   1.783 +
   1.784 +  } /* if (else) - recorded FileTransfer */
   1.785 +
   1.786 +  if (NULL == src->file) {
   1.787 +    GST_INFO_OBJECT (src, "FileTransfer is NULL");
   1.788 +    goto init_failed;
   1.789 +  }
   1.790 +  /*GST_INFO_OBJECT( src, "uri = %s", src->spawn_livetv->file); */
   1.791 +
   1.792 +  if (ret == FALSE) {
   1.793 +#ifndef GST_DISABLE_GST_DEBUG
   1.794 +    if (src->mythtv_msgs_dbg)
   1.795 +      GST_INFO_OBJECT (src,
   1.796 +          "MythTV FileTransfer request failed when setting up socket connection!");
   1.797 +#endif
   1.798 +    goto begin_req_failed;
   1.799 +  }
   1.800 +
   1.801 +  GST_INFO_OBJECT (src,
   1.802 +      "MythTV FileTransfer filesize = %lld, content_size = %lld!",
   1.803 +      gmyth_file_get_filesize( src->file ), src->content_size);
   1.804 +
   1.805 +  src->content_size = gmyth_file_get_filesize (src->file);
   1.806 +
   1.807 +  src->do_start = FALSE;
   1.808 +
   1.809 +  /* this is used for the buffer cache */
   1.810 +  src->bytes_queue = g_byte_array_sized_new (INTERNAL_BUFFER_SIZE);
   1.811 +  src->buffer_remain = 0;
   1.812 +  
   1.813 +  gst_pad_push_event (GST_BASE_SRC_PAD (GST_BASE_SRC (src)),
   1.814 +      gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_TIME, 0,
   1.815 +          src->content_size, 0));
   1.816 +
   1.817 +done:
   1.818 +	if (gmyth_uri != NULL)
   1.819 +	{
   1.820 +  	    g_object_unref (gmyth_uri);
   1.821 +      	gmyth_uri = NULL;
   1.822 +	}
   1.823 +
   1.824 +    if (chain_id_local != NULL) {
   1.825 +        g_string_free (chain_id_local, TRUE);
   1.826 +        chain_id_local = NULL;
   1.827 +    }
   1.828 +
   1.829 +    return TRUE;
   1.830 +
   1.831 +    /* ERRORS */
   1.832 +init_failed:
   1.833 +	if (gmyth_uri != NULL)
   1.834 +	{
   1.835 +  	    g_object_unref (gmyth_uri);
   1.836 +      	gmyth_uri = NULL;
   1.837 +	}
   1.838 +
   1.839 +    if (src->spawn_livetv != NULL) {
   1.840 +        g_object_unref (src->spawn_livetv);
   1.841 +        src->spawn_livetv = NULL;
   1.842 +    }
   1.843 +    
   1.844 +    /*
   1.845 +    GST_ELEMENT_ERROR (src, LIBRARY, INIT,
   1.846 +            (NULL), ("Could not initialize MythTV library (%i, %s)", ret,
   1.847 +            src->uri_name));
   1.848 +    */            
   1.849 +
   1.850 +    if  (++src->try_number <= src->max_try) {
   1.851 +       gst_mythtv_src_clear (src);
   1.852 +       GST_DEBUG_OBJECT (src, "Starting new try for get free recorder on MythTV");
   1.853 +       g_usleep (0.5 * G_USEC_PER_SEC);
   1.854 +       return gst_mythtv_src_start (bsrc);
   1.855 +    }
   1.856 +
   1.857 +    return FALSE;
   1.858 +begin_req_failed:
   1.859 +	if (gmyth_uri != NULL)
   1.860 +	{
   1.861 +  	    g_object_unref (gmyth_uri);
   1.862 +      	gmyth_uri = NULL;
   1.863 +	}
   1.864 +
   1.865 +    GST_ELEMENT_ERROR (src, LIBRARY, INIT,
   1.866 +        (NULL), ("Could not begin request sent to MythTV server (%i, %s)", ret,
   1.867 +            src->uri_name));
   1.868 +    return FALSE;
   1.869 +
   1.870 +}
   1.871 +
   1.872 +static gboolean
   1.873 +gst_mythtv_src_get_size (GstBaseSrc * bsrc, guint64 * size)
   1.874 +{
   1.875 +  GstMythtvSrc *src = GST_MYTHTV_SRC (bsrc);
   1.876 +  gboolean ret = TRUE;
   1.877 +
   1.878 +  GST_LOG_OBJECT (src, "Differs from previous content size: %d (max.: %d)",
   1.879 +      abs (src->content_size - src->prev_content_size),
   1.880 +      GMYTHTV_TRANSFER_MAX_BUFFER);
   1.881 +
   1.882 +  if (src->live_tv) {
   1.883 +    ret = FALSE;
   1.884 +  } else if (src->live_tv && src->enable_timing_position
   1.885 +      && (abs (src->content_size - src->bytes_read) <
   1.886 +          GMYTHTV_TRANSFER_MAX_BUFFER)) {
   1.887 +
   1.888 +    gint64 new_offset =
   1.889 +        gmyth_recorder_get_file_position (src->spawn_livetv->recorder);
   1.890 +    if (new_offset > 0 && new_offset > src->content_size) {
   1.891 +      src->content_size = new_offset;
   1.892 +    } else if (new_offset < src->content_size) {
   1.893 +      src->update_prog_chain = TRUE;
   1.894 +    }
   1.895 +
   1.896 +  }
   1.897 +
   1.898 +  *size = src->content_size;
   1.899 +  GST_LOG_OBJECT (src, "Content size = %lld", src->content_size);
   1.900 +
   1.901 +  return ret;
   1.902 +
   1.903 +}
   1.904 +
   1.905 +/* close the socket and associated resources
   1.906 + * used both to recover from errors and go to NULL state */
   1.907 +static gboolean
   1.908 +gst_mythtv_src_stop (GstBaseSrc * bsrc)
   1.909 +{
   1.910 +  GstMythtvSrc *src = GST_MYTHTV_SRC (bsrc);
   1.911 +  
   1.912 +  gst_mythtv_src_clear (src);
   1.913 +
   1.914 +  /* src->eos = FALSE; */
   1.915 +
   1.916 +  return TRUE;
   1.917 +}
   1.918 +
   1.919 +static gboolean
   1.920 +gst_mythtv_src_handle_event (GstPad * pad, GstEvent * event)
   1.921 +{
   1.922 +  GstMythtvSrc *src = GST_MYTHTV_SRC (GST_PAD_PARENT (pad));
   1.923 +  gint64 cont_size = 0;
   1.924 +  gboolean ret = FALSE;
   1.925 +
   1.926 +  switch (GST_EVENT_TYPE (event)) {
   1.927 +    case GST_EVENT_EOS:
   1.928 +      GST_WARNING_OBJECT (src, "Got EOS event");
   1.929 +
   1.930 +      if (src->live_tv) {
   1.931 +        cont_size = gst_mythtv_src_get_position (src);
   1.932 +        if (cont_size > src->content_size) {
   1.933 +          src->content_size = cont_size;
   1.934 +          src->eos = FALSE;
   1.935 +        } else {
   1.936 +          src->eos = TRUE;
   1.937 +          gst_element_set_state (GST_ELEMENT (src), GST_STATE_NULL);
   1.938 +          gst_element_set_locked_state (GST_ELEMENT (src), FALSE);
   1.939 +        }
   1.940 +      }
   1.941 +      break;
   1.942 +    default:
   1.943 +      ret = gst_pad_event_default (pad, event);
   1.944 +  }
   1.945 +
   1.946 +  return ret;
   1.947 +}
   1.948 +
   1.949 +static gboolean
   1.950 +gst_mythtv_src_is_seekable (GstBaseSrc * push_src)
   1.951 +{
   1.952 +  return TRUE;
   1.953 +}
   1.954 +
   1.955 +static gboolean
   1.956 +gst_mythtv_src_handle_query (GstPad * pad, GstQuery * query)
   1.957 +{
   1.958 +  gboolean res = FALSE;
   1.959 +  GstMythtvSrc *myth = GST_MYTHTV_SRC (gst_pad_get_parent (pad));
   1.960 +  GstFormat formt;
   1.961 +
   1.962 +  switch (GST_QUERY_TYPE (query)) {
   1.963 +    case GST_QUERY_POSITION:
   1.964 +    {
   1.965 +      gst_query_parse_position (query, &formt, NULL);
   1.966 +      if (formt == GST_FORMAT_BYTES) {
   1.967 +        gst_query_set_position (query, formt, myth->read_offset);
   1.968 +        GST_DEBUG_OBJECT (myth, "POS %" G_GINT64_FORMAT, myth->read_offset);
   1.969 +        res = TRUE;
   1.970 +      } else if (formt == GST_FORMAT_TIME) {
   1.971 +        res = gst_pad_query_default (pad, query);
   1.972 +      }
   1.973 +      break;
   1.974 +    }
   1.975 +    case GST_QUERY_DURATION:
   1.976 +    {
   1.977 +#if 0
   1.978 +      if (myth->duration != 0) {
   1.979 +        gint64 total;
   1.980 +        gint64 fps;
   1.981 +
   1.982 +        fps = nuv->h->i_fpsn / nuv->h->i_fpsd;
   1.983 +        total =
   1.984 +            gst_util_uint64_scale_int (GST_SECOND, nuv->h->i_video_blocks, fps);
   1.985 +      }
   1.986 +#endif
   1.987 +
   1.988 +      gst_query_parse_duration (query, &formt, NULL);
   1.989 +      if (formt == GST_FORMAT_BYTES) {
   1.990 +        gst_query_set_duration (query, formt, myth->content_size);
   1.991 +        GST_DEBUG_OBJECT (myth, "SIZE %" G_GINT64_FORMAT, myth->content_size);
   1.992 +        res = TRUE;
   1.993 +      } else if (formt == GST_FORMAT_TIME) {
   1.994 +        res = gst_pad_query_default (pad, query);
   1.995 +      }
   1.996 +      break;
   1.997 +    }
   1.998 +    default:
   1.999 +    {
  1.1000 +      res = gst_pad_query_default (pad, query);
  1.1001 +      break;
  1.1002 +    }
  1.1003 +  }
  1.1004 +
  1.1005 +  gst_object_unref (myth);
  1.1006 +
  1.1007 +  return res;
  1.1008 +}
  1.1009 +
  1.1010 +static GstStateChangeReturn
  1.1011 +gst_mythtv_src_change_state (GstElement * element, GstStateChange transition)
  1.1012 +{
  1.1013 +  GstStateChangeReturn ret = GST_STATE_CHANGE_FAILURE;
  1.1014 +  GstMythtvSrc *src = GST_MYTHTV_SRC (element);
  1.1015 +
  1.1016 +  switch (transition) {
  1.1017 +    case GST_STATE_CHANGE_NULL_TO_READY:
  1.1018 +      break;
  1.1019 +    case GST_STATE_CHANGE_READY_TO_PAUSED:
  1.1020 +    case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
  1.1021 +      if (src->live_tv) {
  1.1022 +        if (!gmyth_recorder_send_frontend_ready_command (src->spawn_livetv->
  1.1023 +                recorder))
  1.1024 +          GST_WARNING_OBJECT (src,
  1.1025 +              "Couldn't send the FRONTEND_READY message to the backend!");
  1.1026 +        else
  1.1027 +          GST_DEBUG_OBJECT (src, "FRONTEND_READY was sent to the backend");
  1.1028 +      }
  1.1029 +      break;
  1.1030 +    default:
  1.1031 +      break;
  1.1032 +  }
  1.1033 +
  1.1034 +  ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
  1.1035 +  if (ret == GST_STATE_CHANGE_FAILURE)
  1.1036 +    return ret;
  1.1037 +
  1.1038 +  switch (transition) {
  1.1039 +    case GST_STATE_CHANGE_READY_TO_NULL:
  1.1040 +      break;
  1.1041 +    case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
  1.1042 +    case GST_STATE_CHANGE_PAUSED_TO_READY:
  1.1043 +      break;
  1.1044 +    default:
  1.1045 +      break;
  1.1046 +  }
  1.1047 +
  1.1048 +  return ret;
  1.1049 +}
  1.1050 +
  1.1051 +static void
  1.1052 +gst_mythtv_src_set_property (GObject * object, guint prop_id,
  1.1053 +    const GValue * value, GParamSpec * pspec)
  1.1054 +{
  1.1055 +  GstMythtvSrc *mythtvsrc = GST_MYTHTV_SRC (object);
  1.1056 +
  1.1057 +  GST_OBJECT_LOCK (mythtvsrc);
  1.1058 +  switch (prop_id) {
  1.1059 +    case PROP_LOCATION:
  1.1060 +    {
  1.1061 +      if (!g_value_get_string (value)) {
  1.1062 +        GST_WARNING ("location property cannot be NULL");
  1.1063 +	break;
  1.1064 +      }
  1.1065 +
  1.1066 +      if (mythtvsrc->uri_name != NULL) {
  1.1067 +        g_free (mythtvsrc->uri_name);
  1.1068 +        mythtvsrc->uri_name = NULL;
  1.1069 +      }
  1.1070 +      mythtvsrc->uri_name = g_value_dup_string (value);
  1.1071 +
  1.1072 +      break;
  1.1073 +    }
  1.1074 +#ifndef GST_DISABLE_GST_DEBUG
  1.1075 +    case PROP_GMYTHTV_DBG:
  1.1076 +    {
  1.1077 +      mythtvsrc->mythtv_msgs_dbg = g_value_get_boolean (value);
  1.1078 +      break;
  1.1079 +    }
  1.1080 +#endif
  1.1081 +    case PROP_GMYTHTV_VERSION:
  1.1082 +    {
  1.1083 +      mythtvsrc->mythtv_version = g_value_get_int (value);
  1.1084 +      break;
  1.1085 +    }
  1.1086 +    case PROP_GMYTHTV_LIVEID:
  1.1087 +    {
  1.1088 +      mythtvsrc->live_tv_id = g_value_get_int (value);
  1.1089 +      break;
  1.1090 +    }
  1.1091 +    case PROP_GMYTHTV_LIVE:
  1.1092 +    {
  1.1093 +      mythtvsrc->live_tv = g_value_get_boolean (value);
  1.1094 +      break;
  1.1095 +    }
  1.1096 +    case PROP_GMYTHTV_ENABLE_TIMING_POSITION:
  1.1097 +    {
  1.1098 +      mythtvsrc->enable_timing_position = g_value_get_boolean (value);
  1.1099 +      break;
  1.1100 +    }
  1.1101 +    case PROP_GMYTHTV_LIVE_CHAINID:
  1.1102 +    {
  1.1103 +      if (!g_value_get_string (value)) {
  1.1104 +        GST_WARNING ("MythTV Live chainid property cannot be NULL");
  1.1105 +	break;
  1.1106 +      }
  1.1107 +
  1.1108 +      if (mythtvsrc->live_chain_id != NULL) {
  1.1109 +        g_free (mythtvsrc->live_chain_id);
  1.1110 +        mythtvsrc->live_chain_id = NULL;
  1.1111 +      }
  1.1112 +      mythtvsrc->live_chain_id = g_value_dup_string (value);
  1.1113 +      break;
  1.1114 +    }
  1.1115 +    case PROP_GMYTHTV_CHANNEL_NUM:
  1.1116 +    {
  1.1117 +      mythtvsrc->channel_name = g_value_dup_string (value);
  1.1118 +      break;
  1.1119 +    }
  1.1120 +    case PROP_GMYTHTV_MAX_TRY:
  1.1121 +    {
  1.1122 +      mythtvsrc->max_try = g_value_get_int (value);
  1.1123 +      break;
  1.1124 +    }
  1.1125 +    default:
  1.1126 +      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
  1.1127 +      break;
  1.1128 +  }
  1.1129 +
  1.1130 +  GST_OBJECT_UNLOCK (mythtvsrc);
  1.1131 +}
  1.1132 +
  1.1133 +static void
  1.1134 +gst_mythtv_src_get_property (GObject * object, guint prop_id,
  1.1135 +    GValue * value, GParamSpec * pspec)
  1.1136 +{
  1.1137 +  GstMythtvSrc *mythtvsrc = GST_MYTHTV_SRC (object);
  1.1138 +
  1.1139 +  GST_OBJECT_LOCK (mythtvsrc);
  1.1140 +  switch (prop_id) {
  1.1141 +    case PROP_LOCATION:
  1.1142 +    {
  1.1143 +      g_value_set_string (value, mythtvsrc->uri_name);
  1.1144 +      break;
  1.1145 +    }
  1.1146 +#ifndef GST_DISABLE_GST_DEBUG
  1.1147 +    case PROP_GMYTHTV_DBG:
  1.1148 +      g_value_set_boolean (value, mythtvsrc->mythtv_msgs_dbg);
  1.1149 +      break;
  1.1150 +#endif
  1.1151 +    case PROP_GMYTHTV_VERSION:
  1.1152 +    {
  1.1153 +      g_value_set_int (value, mythtvsrc->mythtv_version);
  1.1154 +      break;
  1.1155 +    }
  1.1156 +    case PROP_GMYTHTV_LIVEID:
  1.1157 +    {
  1.1158 +      g_value_set_int (value, mythtvsrc->live_tv_id);
  1.1159 +      break;
  1.1160 +    }
  1.1161 +    case PROP_GMYTHTV_LIVE:
  1.1162 +      g_value_set_boolean (value, mythtvsrc->live_tv);
  1.1163 +      break;
  1.1164 +    case PROP_GMYTHTV_ENABLE_TIMING_POSITION:
  1.1165 +      g_value_set_boolean (value, mythtvsrc->enable_timing_position);
  1.1166 +      break;
  1.1167 +    case PROP_GMYTHTV_LIVE_CHAINID:
  1.1168 +    {
  1.1169 +      g_value_set_string (value, mythtvsrc->live_chain_id);
  1.1170 +      break;
  1.1171 +    }
  1.1172 +    case PROP_GMYTHTV_CHANNEL_NUM:
  1.1173 +    {
  1.1174 +      g_value_set_string (value, mythtvsrc->channel_name);
  1.1175 +      break;
  1.1176 +    }
  1.1177 +    case PROP_GMYTHTV_MAX_TRY:
  1.1178 +    {
  1.1179 +      g_value_set_int (value, mythtvsrc->max_try);
  1.1180 +      break;
  1.1181 +    }
  1.1182 +
  1.1183 +    default:
  1.1184 +      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
  1.1185 +      break;
  1.1186 +  }
  1.1187 +  GST_OBJECT_UNLOCK (mythtvsrc);
  1.1188 +}
  1.1189 +
  1.1190 +static gboolean
  1.1191 +plugin_init (GstPlugin * plugin)
  1.1192 +{
  1.1193 +  return gst_element_register (plugin, "mythtvsrc", GST_RANK_NONE,
  1.1194 +      GST_TYPE_MYTHTV_SRC);
  1.1195 +}
  1.1196 +
  1.1197 +GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
  1.1198 +    GST_VERSION_MINOR,
  1.1199 +    "mythtv",
  1.1200 +    "lib MythTV src",
  1.1201 +    plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);
  1.1202 +
  1.1203 +
  1.1204 +/*** GSTURIHANDLER INTERFACE *************************************************/
  1.1205 +static guint
  1.1206 +gst_mythtv_src_uri_get_type (void)
  1.1207 +{
  1.1208 +  return GST_URI_SRC;
  1.1209 +}
  1.1210 +
  1.1211 +static gchar **
  1.1212 +gst_mythtv_src_uri_get_protocols (void)
  1.1213 +{
  1.1214 +  static gchar *protocols[] = { "myth", "myths", NULL };
  1.1215 +
  1.1216 +  return protocols;
  1.1217 +}
  1.1218 +
  1.1219 +static const gchar *
  1.1220 +gst_mythtv_src_uri_get_uri (GstURIHandler * handler)
  1.1221 +{
  1.1222 +  GstMythtvSrc *src = GST_MYTHTV_SRC (handler);
  1.1223 +
  1.1224 +  return src->uri_name;
  1.1225 +}
  1.1226 +
  1.1227 +static gboolean
  1.1228 +gst_mythtv_src_uri_set_uri (GstURIHandler * handler, const gchar * uri)
  1.1229 +{
  1.1230 +  GstMythtvSrc *src = GST_MYTHTV_SRC (handler);
  1.1231 +
  1.1232 +  gchar *protocol;
  1.1233 +
  1.1234 +  protocol = gst_uri_get_protocol (uri);
  1.1235 +  if ((strcmp (protocol, "myth") != 0) && (strcmp (protocol, "myths") != 0)) {
  1.1236 +    g_free (protocol);
  1.1237 +    return FALSE;
  1.1238 +  }
  1.1239 +  g_free (protocol);
  1.1240 +  g_object_set (src, "location", uri, NULL);
  1.1241 +
  1.1242 +  return TRUE;
  1.1243 +}
  1.1244 +
  1.1245 +static void
  1.1246 +gst_mythtv_src_uri_handler_init (gpointer g_iface, gpointer iface_data)
  1.1247 +{
  1.1248 +  GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
  1.1249 +
  1.1250 +  iface->get_type = gst_mythtv_src_uri_get_type;
  1.1251 +  iface->get_protocols = gst_mythtv_src_uri_get_protocols;
  1.1252 +  iface->get_uri = gst_mythtv_src_uri_get_uri;
  1.1253 +  iface->set_uri = gst_mythtv_src_uri_set_uri;
  1.1254 +}
  1.1255 +
  1.1256 +void
  1.1257 +size_header_handler (void *userdata, const char *value)
  1.1258 +{
  1.1259 +  GstMythtvSrc *src = GST_MYTHTV_SRC (userdata);
  1.1260 +
  1.1261 +  GST_DEBUG_OBJECT (src, "content size = %lld bytes", src->content_size);
  1.1262 +}