1 /* GStreamer MythTV Plug-in
2 * Copyright (C) <2006> Rosfran Borges <rosfran.borges@indt.org.br>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
20 * SECTION:element-mythtvsrc
24 * MythTVSrc allows to access a remote MythTV backend streaming Video/Audio server,
25 * and to render audio and video content through a TCP/IP connection to a specific
26 * port on this server, and based on a known MythTV protocol that is based on
27 * some message passing, such as REQUEST_BLOCK on a specified number of bytes, to get
28 * some chunk of remote file data.
29 * You should pass the information aboute the remote MythTV backend server
30 * through the <link linkend="GstMythTVSrc--location">location</link> property.
32 * <title>Examples</title>
34 * If you want to get the LiveTV content (set channel, TV tuner, RemoteEncoder,
36 * put the following URI:
39 * myth://xxx.xxx.xxx.xxx:6543/livetv?channel=BBC
42 * This URI will say to the gmyth library to configure the Recorder instance (used to
43 * change the channel, start the TV multimedia content transmition, etc.), using
44 * the IP address (xxx.xxx.xxx.xxx) and port number (6543) of the MythTV backend
45 * server, and setting the channel name to "BBC".
47 * To get a already recorded the MythTV NUV file, put the following URI:
50 * myth://xxx.xxx.xxx.xxx:6543/filename.nuv
53 * This URI will say to the gmyth library to configure the Recorder instance (used to
54 * change the channel, start the TV multimedia content transmition, etc.), using
55 * the IP address (xxx.xxx.xxx.xxx) and port number (6543) of the MythTV backend
56 * server, and setting the channel name to "BBC".
58 * Another possible way to use the LiveTV content, and just in the case you want to
59 * use the mysql database, put the location URI in the following format:
62 * myth://mythtv:mythtv@xxx.xxx.xxx.xxx:6543/?mythconverg&channel=9
65 * Where the first field is the protocol (myth), the second and third are user
66 * name (mythtv) and password (mythtv), then backend host name and port number,
67 * and the last field is the database name (mythconverg).
75 #include "gstmythtvsrc.h"
76 #include <gmyth/gmyth_file.h>
77 #include <gmyth/gmyth_file_transfer.h>
78 #include <gmyth/gmyth_file_local.h>
79 #include <gmyth/gmyth_livetv.h>
81 #include <gmyth/gmyth_socket.h>
82 #include <gmyth/gmyth_tvchain.h>
87 GST_DEBUG_CATEGORY_STATIC (mythtvsrc_debug);
88 #define GST_CAT_DEFAULT mythtvsrc_debug
90 #define GST_GMYTHTV_ID_NUM 1
92 #define GST_GMYTHTV_CHANNEL_DEFAULT_NUM (-1)
94 #define GMYTHTV_VERSION_DEFAULT 30
96 #define GMYTHTV_TRANSFER_MAX_WAITS 100
98 #define GMYTHTV_TRANSFER_MAX_RESENDS 2
100 #define GMYTHTV_TRANSFER_MAX_BUFFER (128*1024)
102 #define MAX_READ_SIZE (4*1024)
104 #define GST_FLOW_ERROR_NO_DATA (-101)
106 #define REQUEST_MAX_SIZE (64*1024)
108 #define INTERNAL_BUFFER_SIZE (90*1024)
110 static const GstElementDetails gst_mythtv_src_details =
111 GST_ELEMENT_DETAILS ("MythTV client source",
113 "Control and receive data as a client over the network "
114 "via raw socket connections using the MythTV protocol",
115 "Rosfran Borges <rosfran.borges@indt.org.br>");
117 static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
120 GST_STATIC_CAPS_ANY );
121 /* GST_STATIC_CAPS ("video/x-nuv")); */
127 #ifndef GST_DISABLE_GST_DEBUG
130 PROP_GMYTHTV_VERSION,
133 PROP_GMYTHTV_LIVE_CHAINID,
134 PROP_GMYTHTV_ENABLE_TIMING_POSITION,
135 PROP_GMYTHTV_CHANNEL_NUM,
139 static void gst_mythtv_src_clear (GstMythtvSrc *mythtv_src);
141 static void gst_mythtv_src_finalize (GObject * gobject);
143 static GstFlowReturn gst_mythtv_src_create (GstPushSrc * psrc,
144 GstBuffer ** outbuf);
146 static gboolean gst_mythtv_src_start (GstBaseSrc * bsrc);
147 static gboolean gst_mythtv_src_stop (GstBaseSrc * bsrc);
148 static gboolean gst_mythtv_src_get_size (GstBaseSrc * bsrc, guint64 * size);
149 static gboolean gst_mythtv_src_is_seekable (GstBaseSrc * push_src);
151 static gboolean gst_mythtv_src_do_seek (GstBaseSrc * base,
152 GstSegment * segment);
154 static GstStateChangeReturn
155 gst_mythtv_src_change_state (GstElement * element, GstStateChange transition);
157 static void gst_mythtv_src_set_property (GObject * object, guint prop_id,
158 const GValue * value, GParamSpec * pspec);
159 static void gst_mythtv_src_get_property (GObject * object, guint prop_id,
160 GValue * value, GParamSpec * pspec);
162 static void gst_mythtv_src_uri_handler_init (gpointer g_iface,
163 gpointer iface_data);
165 static gboolean gst_mythtv_src_handle_query (GstPad * pad, GstQuery * query);
167 static gboolean gst_mythtv_src_handle_event (GstPad * pad, GstEvent * event);
169 static GMythFileReadResult do_read_request_response (GstMythtvSrc * src, guint size,
170 GByteArray * data_ptr);
173 _urihandler_init (GType type)
175 static const GInterfaceInfo urihandler_info = {
176 gst_mythtv_src_uri_handler_init,
181 g_type_add_interface_static (type, GST_TYPE_URI_HANDLER, &urihandler_info);
183 GST_DEBUG_CATEGORY_INIT (mythtvsrc_debug, "mythtvsrc", 0, "MythTV src");
186 GST_BOILERPLATE_FULL (GstMythtvSrc, gst_mythtv_src, GstPushSrc,
187 GST_TYPE_PUSH_SRC, _urihandler_init)
189 static void gst_mythtv_src_base_init (gpointer g_class)
191 GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
193 gst_element_class_add_pad_template (element_class,
194 gst_static_pad_template_get (&srctemplate));
196 gst_element_class_set_details (element_class, &gst_mythtv_src_details);
198 element_class->change_state = gst_mythtv_src_change_state;
203 gst_mythtv_src_class_init (GstMythtvSrcClass * klass)
205 GObjectClass *gobject_class;
206 GstPushSrcClass *gstpushsrc_class;
207 GstBaseSrcClass *gstbasesrc_class;
209 gobject_class = (GObjectClass *) klass;
210 gstbasesrc_class = (GstBaseSrcClass *) klass;
211 gstpushsrc_class = (GstPushSrcClass *) klass;
213 gobject_class->set_property = gst_mythtv_src_set_property;
214 gobject_class->get_property = gst_mythtv_src_get_property;
215 gobject_class->finalize = gst_mythtv_src_finalize;
217 g_object_class_install_property
218 (gobject_class, PROP_LOCATION,
219 g_param_spec_string ("location", "Location",
220 "The location. In the form:"
221 "\n\t\t\tmyth://a.com/file.nuv"
222 "\n\t\t\tmyth://a.com:23223/file.nuv "
223 "\n\t\t\ta.com/file.nuv - default scheme 'myth'",
224 "", G_PARAM_READWRITE));
226 g_object_class_install_property
227 (gobject_class, PROP_GMYTHTV_VERSION,
228 g_param_spec_int ("mythtv-version", "mythtv-version",
229 "Change MythTV version", 26, 30, 26, G_PARAM_READWRITE));
231 g_object_class_install_property
232 (gobject_class, PROP_GMYTHTV_LIVEID,
233 g_param_spec_int ("mythtv-live-id", "mythtv-live-id",
234 "Change MythTV version",
235 0, 200, GST_GMYTHTV_ID_NUM, G_PARAM_READWRITE));
237 g_object_class_install_property
238 (gobject_class, PROP_GMYTHTV_LIVE_CHAINID,
239 g_param_spec_string ("mythtv-live-chainid", "mythtv-live-chainid",
240 "Sets the MythTV chain ID (from TV Chain)", "", G_PARAM_READWRITE));
242 g_object_class_install_property
243 (gobject_class, PROP_GMYTHTV_LIVE,
244 g_param_spec_boolean ("mythtv-live", "mythtv-live",
245 "Enable MythTV Live TV content streaming", FALSE, G_PARAM_READWRITE));
247 g_object_class_install_property
248 (gobject_class, PROP_GMYTHTV_ENABLE_TIMING_POSITION,
249 g_param_spec_boolean ("mythtv-enable-timing-position",
250 "mythtv-enable-timing-position",
251 "Enable MythTV Live TV content size continuous updating", FALSE,
254 g_object_class_install_property
255 (gobject_class, PROP_GMYTHTV_CHANNEL_NUM,
256 g_param_spec_string ("mythtv-channel", "mythtv-channel",
257 "Change MythTV channel number",
258 "", G_PARAM_READWRITE));
260 g_object_class_install_property
261 (gobject_class, PROP_GMYTHTV_MAX_TRY,
262 g_param_spec_int ("max-try", "max-try",
263 "Set the max try for get MythTV free recorder",
264 0, G_MAXINT, 10, G_PARAM_READWRITE));
267 #ifndef GST_DISABLE_GST_DEBUG
268 g_object_class_install_property
269 (gobject_class, PROP_GMYTHTV_DBG,
270 g_param_spec_boolean ("mythtv-debug", "mythtv-debug",
271 "Enable MythTV debug messages", FALSE, G_PARAM_READWRITE));
274 gstbasesrc_class->start = gst_mythtv_src_start;
275 gstbasesrc_class->stop = gst_mythtv_src_stop;
276 gstbasesrc_class->get_size = gst_mythtv_src_get_size;
277 gstbasesrc_class->is_seekable = gst_mythtv_src_is_seekable;
279 gstbasesrc_class->do_seek = gst_mythtv_src_do_seek;
280 gstpushsrc_class->create = gst_mythtv_src_create;
282 GST_DEBUG_CATEGORY_INIT (mythtvsrc_debug, "mythtvsrc", 0,
283 "MythTV Client Source");
287 gst_mythtv_src_init (GstMythtvSrc * this, GstMythtvSrcClass * g_class)
291 this->unique_setup = FALSE;
293 this->mythtv_version = GMYTHTV_VERSION_DEFAULT;
295 this->state = GST_MYTHTV_SRC_FILE_TRANSFER;
297 this->bytes_read = 0;
299 this->prev_content_size = 0;
301 this->content_size = 0;
302 this->read_offset = 0;
304 this->content_size_last = 0;
306 this->live_tv = FALSE;
308 this->enable_timing_position = FALSE;
309 this->update_prog_chain = FALSE;
311 this->user_agent = g_strdup ("mythtvsrc");
312 this->update_prog_chain = FALSE;
314 this->channel_name = NULL;
318 this->bytes_queue = NULL;
320 this->wait_to_transfer = 0;
322 gst_base_src_set_format (GST_BASE_SRC (this), GST_FORMAT_BYTES);
324 gst_pad_set_event_function (GST_BASE_SRC_PAD (GST_BASE_SRC (this)),
325 gst_mythtv_src_handle_event);
326 gst_pad_set_query_function (GST_BASE_SRC_PAD (GST_BASE_SRC (this)),
327 gst_mythtv_src_handle_query);
332 gst_mythtv_src_clear (GstMythtvSrc *mythtv_src)
334 mythtv_src->unique_setup = FALSE;
336 if (mythtv_src->spawn_livetv) {
337 g_object_unref (mythtv_src->spawn_livetv);
338 mythtv_src->spawn_livetv = NULL;
341 if (mythtv_src->file) {
342 g_object_unref (mythtv_src->file);
343 mythtv_src->file = NULL;
346 if (mythtv_src->backend_info) {
347 g_object_unref (mythtv_src->backend_info);
348 mythtv_src->backend_info = NULL;
351 if (mythtv_src->bytes_queue) {
352 g_byte_array_free (mythtv_src->bytes_queue, TRUE);
353 mythtv_src->bytes_queue = NULL;
358 gst_mythtv_src_finalize (GObject * gobject)
360 GstMythtvSrc *this = GST_MYTHTV_SRC (gobject);
362 gst_mythtv_src_clear (this);
364 if (this->uri_name) {
365 g_free (this->uri_name);
366 this->uri_name = NULL;
369 if (this->user_agent) {
370 g_free (this->user_agent);
371 this->user_agent = NULL;
374 G_OBJECT_CLASS (parent_class)->finalize (gobject);
377 static GMythFileReadResult
378 do_read_request_response (GstMythtvSrc * src, guint size, GByteArray *data_ptr)
381 guint sizetoread = size;
382 gint max_iters = GMYTHTV_TRANSFER_MAX_RESENDS;
383 GMythFileReadResult result;
385 GST_LOG_OBJECT (src, "Starting: Reading %d bytes...", sizetoread);
387 /* Loop sending the Myth File Transfer request:
388 * Retry whilst authentication fails and we supply it. */
390 while (sizetoread == size && --max_iters > 0) {
391 /* if ( gmyth_backend_info_is_local_file(src->backend_info) ) */
392 if ( IS_GMYTH_FILE_LOCAL(src->file) )
393 result = gmyth_file_local_read ( GMYTH_FILE_LOCAL(src->file),
394 data_ptr, sizetoread, src->live_tv);
395 else if ( IS_GMYTH_FILE_TRANSFER(src->file) )
396 result = gmyth_file_transfer_read ( GMYTH_FILE_TRANSFER(src->file),
397 data_ptr, sizetoread, src->live_tv );
399 if (data_ptr->len > 0) {
400 read += data_ptr->len;
401 sizetoread -= data_ptr->len;
402 } else if (data_ptr->len <= 0) {
403 if (src->live_tv == FALSE) {
404 result = GMYTH_FILE_READ_EOF;
407 if (result == GMYTH_FILE_READ_ERROR) { /* -314 */
408 GST_INFO_OBJECT (src, "[LiveTV] FileTransfer READ_ERROR!");
410 } else if (result == GMYTH_FILE_READ_NEXT_PROG_CHAIN) { /* -315 */
411 GST_INFO_OBJECT (src,
412 "[LiveTV] FileTransfer - Go to athe next program chain!");
413 src->update_prog_chain = TRUE;
419 } /* else if (data_ptr->len == 0)
422 if (read == sizetoread)
426 if ((read < 0 && !src->live_tv) || max_iters == 0) {
427 result = GMYTH_FILE_READ_EOF;
441 gst_mythtv_src_create (GstPushSrc * psrc, GstBuffer ** outbuf)
444 GstFlowReturn ret = GST_FLOW_OK;
445 guint buffer_size_inter = 0;
447 src = GST_MYTHTV_SRC (psrc);
449 /* The caller should know the number of bytes and not read beyond EOS. */
450 if (G_UNLIKELY (src->eos))
452 GST_DEBUG_OBJECT (src, "offset = %" G_GUINT64_FORMAT ", size = %d...",
453 src->read_offset, MAX_READ_SIZE);
455 GST_DEBUG_OBJECT (src, "Create: buffer_remain: %d, buffer_size = %d.",
456 (gint) src->buffer_remain, src->bytes_queue->len);
458 program_chain_changed:
459 /* just get from the byte array, no network effort... */
460 if ((src->buffer_remain = src->bytes_queue->len) < MAX_READ_SIZE) {
462 GMythFileReadResult result = GMYTH_FILE_READ_OK;
465 buffer_size_inter = (INTERNAL_BUFFER_SIZE - src->buffer_remain);
467 if (buffer_size_inter > REQUEST_MAX_SIZE)
468 buffer_size_inter = REQUEST_MAX_SIZE;
470 buffer = g_byte_array_new ();
472 result = do_read_request_response (src, buffer_size_inter, buffer);
474 /* got the next program info? */
475 if (G_UNLIKELY (src->update_prog_chain) || (result == GMYTH_FILE_READ_NEXT_PROG_CHAIN)) {
476 GST_DEBUG_OBJECT (src, "Update PROGRAM CHAIN!!! buffer_size = %d.",
477 src->bytes_queue->len);
478 gst_pad_push_event (GST_BASE_SRC_PAD (GST_BASE_SRC (psrc)),
479 gst_event_new_custom(GST_EVENT_CUSTOM_DOWNSTREAM, NULL));
481 gst_pad_push_event (GST_BASE_SRC_PAD (GST_BASE_SRC (psrc)),
482 gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_BYTES, 0, -1, 0));
484 src->update_prog_chain = FALSE;
487 if (result == GMYTH_FILE_READ_NEXT_PROG_CHAIN) {
489 if (buffer != NULL) {
490 g_byte_array_free (buffer, TRUE);
493 goto program_chain_changed; */
494 } else if (result == GMYTH_FILE_READ_OK) {
495 /* remove wasteful, NUV file header data */
496 /* buffer = g_byte_array_remove_range( buffer, 0, 512 ); */
497 /* TODO: need to send a new segment event to NUVDemux? */
498 //gst_pad_push_event (GST_BASE_SRC_PAD (GST_BASE_SRC (psrc)),
499 // gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_BYTES, 0, -1, 0));
501 /* goto change_progchain; */
506 if (G_UNLIKELY (buffer->len < 0)) {
508 if (buffer != NULL) {
509 g_byte_array_free (buffer, TRUE);
513 if (src->live_tv || ( result == GMYTH_FILE_READ_NEXT_PROG_CHAIN ))
514 goto change_progchain;
517 } else if (G_UNLIKELY (buffer->len == 0)) {
519 if (buffer != NULL) {
520 g_byte_array_free (buffer, TRUE);
527 goto program_chain_changed;
531 g_byte_array_append (src->bytes_queue, buffer->data, buffer->len);
532 if (buffer->len > buffer_size_inter)
533 GST_WARNING_OBJECT (src,
534 "INCREASED buffer size! Backend sent more than we ask him... (%d)",
535 abs (buffer->len - buffer_size_inter));
537 src->buffer_remain += buffer->len;
539 if (buffer != NULL) {
540 g_byte_array_free (buffer, TRUE);
545 GST_DEBUG_OBJECT (src,
546 "BYTES READ (actual) = %d, BYTES READ (cumulative) = %llu, "
547 "OFFSET = %llu, CONTENT SIZE = %llu.", read,
548 src->bytes_read, src->read_offset, src->content_size);
553 (src->buffer_remain < MAX_READ_SIZE) ? src->buffer_remain : MAX_READ_SIZE;
555 *outbuf = gst_buffer_new ();
558 GST_DEBUG_OBJECT (src, "read from network? %s!, buffer_remain = %d",
559 (buffer_size_inter ==
560 0) ? "NO, got from buffer" : "YES, go see the backend's log file",
564 GST_BUFFER_SIZE (*outbuf) = buffer_size;
565 GST_BUFFER_MALLOCDATA (*outbuf) = g_malloc0 (GST_BUFFER_SIZE (*outbuf));
566 GST_BUFFER_DATA (*outbuf) = GST_BUFFER_MALLOCDATA (*outbuf);
567 g_memmove (GST_BUFFER_DATA ((*outbuf)), src->bytes_queue->data,
568 GST_BUFFER_SIZE (*outbuf));
569 GST_BUFFER_OFFSET (*outbuf) = src->read_offset;
570 GST_BUFFER_OFFSET_END (*outbuf) =
571 src->read_offset + GST_BUFFER_SIZE (*outbuf);
573 src->buffer_remain -= GST_BUFFER_SIZE (*outbuf);
575 src->read_offset += GST_BUFFER_SIZE (*outbuf);
576 src->bytes_read += GST_BUFFER_SIZE (*outbuf);
577 //GST_DEBUG_OBJECT (src, "Buffer output with size: %d",
578 // GST_BUFFER_SIZE (*outbuf));
580 /* flushs the newly buffer got from byte array */
582 g_byte_array_remove_range (src->bytes_queue, 0, buffer_size);
584 if ( G_UNLIKELY (src->eos) || ( !src->live_tv
585 && ( src->bytes_read >= src->content_size ) ) )
590 const gchar *reason = gst_flow_get_name (ret);
595 const gchar *reason = gst_flow_get_name (ret);
597 GST_DEBUG_OBJECT (src, "pausing task, reason %s", reason);
598 return GST_FLOW_UNEXPECTED;
603 GST_ELEMENT_ERROR (src, RESOURCE, READ,
604 (NULL), ("Could not read any bytes (%i, %s)", read, src->uri_name));
605 return GST_FLOW_ERROR;
609 GST_ELEMENT_ERROR (src, RESOURCE, READ,
610 (NULL), ("Seek failed, go to the next program info... (%i, %s)", read,
613 /* TODO: need to send a new segment event to NUVDemux? */
614 gst_pad_push_event (GST_BASE_SRC_PAD (GST_BASE_SRC (psrc)),
615 gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_TIME, 0, -1, 0));
617 goto program_chain_changed;
623 gst_mythtv_src_get_position (GstMythtvSrc * src)
629 if (src->live_tv == TRUE && (abs (src->content_size - src->bytes_read) <
630 GMYTHTV_TRANSFER_MAX_BUFFER)) {
634 size_tmp = gmyth_recorder_get_file_position (src->spawn_livetv->recorder);
635 if (size_tmp > (src->content_size + GMYTHTV_TRANSFER_MAX_BUFFER))
636 src->content_size = size_tmp;
637 else if (size_tmp > 0 && --max_tries > 0)
639 GST_LOG_OBJECT (src, "GET_POSITION: file_position = %lld", size_tmp);
640 /* sets the last content size amount before it can be updated */
641 src->prev_content_size = src->content_size;
644 return src->content_size;
649 gst_mythtv_src_do_seek (GstBaseSrc * base, GstSegment * segment)
651 GstMythtvSrc *src = GST_MYTHTV_SRC (base);
652 gint64 new_offset = -1;
653 gint64 actual_seek = segment->start;
656 GST_LOG_OBJECT (src, "seek, segment: %" GST_SEGMENT_FORMAT, segment);
658 if (segment->format == GST_FORMAT_TIME) {
662 "Trying to seek at the value (actual_seek = %lld, read_offset = %lld)",
663 actual_seek, src->read_offset);
664 /* verify if it needs to seek */
665 if (src->read_offset != actual_seek) {
667 /* if ( gmyth_backend_info_is_local_file(src->backend_info) ) */
668 if ( IS_GMYTH_FILE_LOCAL(src->file) )
670 gmyth_file_local_seek ( GMYTH_FILE_LOCAL(src->file), segment->start, G_SEEK_SET);
671 else if ( IS_GMYTH_FILE_TRANSFER(src->file) )
673 gmyth_file_transfer_seek ( GMYTH_FILE_TRANSFER(src->file), segment->start, SEEK_SET);
676 "Segment offset start = %lld, SRC Offset = %lld, NEW actual backend SEEK Offset = %lld.",
677 segment->start, src->read_offset, new_offset);
678 if (G_UNLIKELY (new_offset < 0)) {
684 src->read_offset = new_offset;
687 GST_INFO_OBJECT (src, "Failed to set the SEEK on segment!");
697 GST_DEBUG_OBJECT (src, "EOS found on seeking!!!");
703 /* create a socket for connecting to remote server */
705 gst_mythtv_src_start (GstBaseSrc * bsrc)
707 GstMythtvSrc *src = GST_MYTHTV_SRC (bsrc);
709 GString *chain_id_local = NULL;
710 GMythURI *gmyth_uri = NULL;
714 if (src->unique_setup == FALSE) {
715 src->unique_setup = TRUE;
720 gmyth_uri = gmyth_uri_new_with_value (src->uri_name);
721 src->backend_info = gmyth_backend_info_new_with_uri (src->uri_name);
722 src->live_tv = gmyth_uri_is_livetv( gmyth_uri );
723 /* testing UPnP... */
724 /* gmyth_backend_info_set_hostname( src->backend_info, NULL ); */
725 if ( src->live_tv ) {
726 src->spawn_livetv = gmyth_livetv_new (src->backend_info);
728 gchar* ch = gmyth_uri_get_channel_name( gmyth_uri );
730 src->channel_name = ch;
732 if (src->channel_name != NULL) {
734 result = gmyth_livetv_channel_name_setup (src->spawn_livetv, src->channel_name);
735 if (result == FALSE) {
736 GST_INFO_OBJECT (src, "LiveTV setup felt down on error");
742 if (gmyth_livetv_setup (src->spawn_livetv) == FALSE) {
743 GST_INFO_OBJECT (src, "LiveTV setup felt down on error");
749 /* testing change channel... */
750 /* gmyth_recorder_change_channel( src->spawn_livetv->recorder, CHANNEL_DIRECTION_UP ); */
752 src->file = GMYTH_FILE( gmyth_livetv_create_file_transfer (src->spawn_livetv) );
754 if (NULL == src->file) {
755 GST_INFO_OBJECT (src, "[LiveTV] FileTransfer equals to NULL");
760 /* Check if the file is local to this specific client renderer */
761 if ( gmyth_uri_is_local_file(gmyth_uri) )
762 ret = gmyth_file_local_open( GMYTH_FILE_LOCAL(src->file) );
764 ret = gmyth_file_transfer_open( GMYTH_FILE_TRANSFER(src->file), src->spawn_livetv->uri != NULL ?
765 gmyth_uri_get_path(src->spawn_livetv->uri) :
766 src->spawn_livetv->proginfo->pathname->str );
768 /* sets the mythtvsrc "location" property */
769 g_object_set (src, "location", gmyth_file_get_uri (src->file), NULL);
773 GST_INFO_OBJECT (src, "Error: couldn't open the FileTransfer from LiveTV source!" );
774 g_object_unref( src->file );
780 /* Check if the file is local to this specific client renderer, and tries to open
783 if ( gmyth_uri_is_local_file(gmyth_uri) )
785 src->file = GMYTH_FILE(gmyth_file_local_new(src->backend_info));
786 ret = gmyth_file_local_open ( GMYTH_FILE_LOCAL( src->file ) );
788 src->file = GMYTH_FILE(gmyth_file_transfer_new(src->backend_info));
789 ret = gmyth_file_transfer_open ( GMYTH_FILE_TRANSFER(src->file), src->uri_name );
792 } /* if (else) - recorded FileTransfer */
794 if (NULL == src->file) {
795 GST_INFO_OBJECT (src, "FileTransfer is NULL");
798 /*GST_INFO_OBJECT( src, "uri = %s", src->spawn_livetv->file); */
801 #ifndef GST_DISABLE_GST_DEBUG
802 if (src->mythtv_msgs_dbg)
803 GST_INFO_OBJECT (src,
804 "MythTV FileTransfer request failed when setting up socket connection!");
806 goto begin_req_failed;
809 GST_INFO_OBJECT (src,
810 "MythTV FileTransfer filesize = %lld, content_size = %lld!",
811 gmyth_file_get_filesize( src->file ), src->content_size);
813 src->content_size = gmyth_file_get_filesize (src->file);
815 msg = gst_message_new_duration (GST_OBJECT (src), GST_FORMAT_BYTES, src->content_size);
816 gst_element_post_message (GST_ELEMENT (src), msg);
819 src->do_start = FALSE;
821 /* this is used for the buffer cache */
822 src->bytes_queue = g_byte_array_sized_new (INTERNAL_BUFFER_SIZE);
823 src->buffer_remain = 0;
825 gst_pad_push_event (GST_BASE_SRC_PAD (GST_BASE_SRC (src)),
826 gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_TIME, 0,
827 src->content_size, 0));
830 if (gmyth_uri != NULL)
832 g_object_unref (gmyth_uri);
836 if (chain_id_local != NULL) {
837 g_string_free (chain_id_local, TRUE);
838 chain_id_local = NULL;
845 if (gmyth_uri != NULL)
847 g_object_unref (gmyth_uri);
851 if (src->spawn_livetv != NULL) {
852 g_object_unref (src->spawn_livetv);
853 src->spawn_livetv = NULL;
856 GST_ELEMENT_ERROR (src, LIBRARY, INIT,
857 (NULL), ("Could not initialize MythTV library (%i, %s)", ret,
861 gst_mythtv_src_clear (src);
865 if (gmyth_uri != NULL)
867 g_object_unref (gmyth_uri);
871 GST_ELEMENT_ERROR (src, LIBRARY, INIT,
872 (NULL), ("Could not begin request sent to MythTV server (%i, %s)", ret,
879 gst_mythtv_src_get_size (GstBaseSrc * bsrc, guint64 * size)
881 GstMythtvSrc *src = GST_MYTHTV_SRC (bsrc);
884 GST_LOG_OBJECT (src, "Differs from previous content size: %d (max.: %d)",
885 abs (src->content_size - src->prev_content_size),
886 GMYTHTV_TRANSFER_MAX_BUFFER);
890 } else if (src->live_tv && src->enable_timing_position
891 && (abs (src->content_size - src->bytes_read) <
892 GMYTHTV_TRANSFER_MAX_BUFFER)) {
895 gmyth_recorder_get_file_position (src->spawn_livetv->recorder);
896 if (new_offset > 0 && new_offset > src->content_size) {
897 src->content_size = new_offset;
898 } else if (new_offset < src->content_size) {
899 src->update_prog_chain = TRUE;
904 *size = src->content_size;
905 GST_LOG_OBJECT (src, "Content size = %lld", src->content_size);
911 /* close the socket and associated resources
912 * used both to recover from errors and go to NULL state */
914 gst_mythtv_src_stop (GstBaseSrc * bsrc)
916 GstMythtvSrc *src = GST_MYTHTV_SRC (bsrc);
918 gst_mythtv_src_clear (src);
920 /* src->eos = FALSE; */
926 gst_mythtv_src_handle_event (GstPad * pad, GstEvent * event)
928 GstMythtvSrc *src = GST_MYTHTV_SRC (GST_PAD_PARENT (pad));
929 gint64 cont_size = 0;
930 gboolean ret = FALSE;
932 switch (GST_EVENT_TYPE (event)) {
934 GST_WARNING_OBJECT (src, "Got EOS event");
937 cont_size = gst_mythtv_src_get_position (src);
938 if (cont_size > src->content_size) {
939 src->content_size = cont_size;
943 gst_element_set_state (GST_ELEMENT (src), GST_STATE_NULL);
944 gst_element_set_locked_state (GST_ELEMENT (src), FALSE);
949 ret = gst_pad_event_default (pad, event);
956 gst_mythtv_src_is_seekable (GstBaseSrc * push_src)
962 gst_mythtv_src_handle_query (GstPad * pad, GstQuery * query)
964 gboolean res = FALSE;
965 GstMythtvSrc *myth = GST_MYTHTV_SRC (gst_pad_get_parent (pad));
969 switch (GST_QUERY_TYPE (query)) {
970 case GST_QUERY_POSITION:
972 gst_query_parse_position (query, &formt, NULL);
973 if (formt == GST_FORMAT_BYTES) {
974 gst_query_set_position (query, formt, myth->read_offset);
975 GST_DEBUG_OBJECT (myth, "POS %" G_GINT64_FORMAT, myth->read_offset);
977 } else if (formt == GST_FORMAT_TIME) {
978 res = gst_pad_query_default (pad, query);
982 case GST_QUERY_DURATION:
984 gst_query_parse_duration (query, &formt, NULL);
985 if (formt == GST_FORMAT_BYTES) {
986 gint64 size = myth->content_size;
987 gst_query_set_duration (query, GST_FORMAT_BYTES, 10);
988 GST_DEBUG_OBJECT (myth, "SIZE %" G_GINT64_FORMAT, size);
990 } else if (formt == GST_FORMAT_TIME) {
991 res = gst_pad_query_default (pad, query);
997 res = gst_pad_query_default (pad, query);
1002 gst_object_unref (myth);
1007 static GstStateChangeReturn
1008 gst_mythtv_src_change_state (GstElement * element, GstStateChange transition)
1010 GstStateChangeReturn ret = GST_STATE_CHANGE_FAILURE;
1011 GstMythtvSrc *src = GST_MYTHTV_SRC (element);
1013 g_debug ("MYTHSRC: state_changed");
1015 switch (transition) {
1016 case GST_STATE_CHANGE_NULL_TO_READY:
1018 case GST_STATE_CHANGE_READY_TO_PAUSED:
1019 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
1021 if (!gmyth_recorder_send_frontend_ready_command (src->spawn_livetv->
1023 GST_WARNING_OBJECT (src,
1024 "Couldn't send the FRONTEND_READY message to the backend!");
1026 GST_DEBUG_OBJECT (src, "FRONTEND_READY was sent to the backend");
1034 g_debug ("MYTHSRC: state_changed 1");
1036 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
1037 if (ret == GST_STATE_CHANGE_FAILURE)
1041 g_debug ("MYTHSRC: state_changed2");
1043 switch (transition) {
1044 case GST_STATE_CHANGE_READY_TO_NULL:
1045 gst_mythtv_src_clear (src);
1047 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
1048 case GST_STATE_CHANGE_PAUSED_TO_READY:
1054 g_debug ("MYTHSRC: state_changed: DONE");
1059 gst_mythtv_src_set_property (GObject * object, guint prop_id,
1060 const GValue * value, GParamSpec * pspec)
1062 GstMythtvSrc *mythtvsrc = GST_MYTHTV_SRC (object);
1064 GST_OBJECT_LOCK (mythtvsrc);
1068 if (!g_value_get_string (value)) {
1069 GST_WARNING ("location property cannot be NULL");
1073 if (mythtvsrc->uri_name != NULL) {
1074 g_free (mythtvsrc->uri_name);
1075 mythtvsrc->uri_name = NULL;
1077 mythtvsrc->uri_name = g_value_dup_string (value);
1081 #ifndef GST_DISABLE_GST_DEBUG
1082 case PROP_GMYTHTV_DBG:
1084 mythtvsrc->mythtv_msgs_dbg = g_value_get_boolean (value);
1088 case PROP_GMYTHTV_VERSION:
1090 mythtvsrc->mythtv_version = g_value_get_int (value);
1093 case PROP_GMYTHTV_LIVEID:
1095 mythtvsrc->live_tv_id = g_value_get_int (value);
1098 case PROP_GMYTHTV_LIVE:
1100 mythtvsrc->live_tv = g_value_get_boolean (value);
1103 case PROP_GMYTHTV_ENABLE_TIMING_POSITION:
1105 mythtvsrc->enable_timing_position = g_value_get_boolean (value);
1108 case PROP_GMYTHTV_LIVE_CHAINID:
1110 if (!g_value_get_string (value)) {
1111 GST_WARNING ("MythTV Live chainid property cannot be NULL");
1115 if (mythtvsrc->live_chain_id != NULL) {
1116 g_free (mythtvsrc->live_chain_id);
1117 mythtvsrc->live_chain_id = NULL;
1119 mythtvsrc->live_chain_id = g_value_dup_string (value);
1122 case PROP_GMYTHTV_CHANNEL_NUM:
1124 mythtvsrc->channel_name = g_value_dup_string (value);
1127 case PROP_GMYTHTV_MAX_TRY:
1129 mythtvsrc->max_try = g_value_get_int (value);
1133 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1137 GST_OBJECT_UNLOCK (mythtvsrc);
1141 gst_mythtv_src_get_property (GObject * object, guint prop_id,
1142 GValue * value, GParamSpec * pspec)
1144 GstMythtvSrc *mythtvsrc = GST_MYTHTV_SRC (object);
1146 GST_OBJECT_LOCK (mythtvsrc);
1150 g_value_set_string (value, mythtvsrc->uri_name);
1153 #ifndef GST_DISABLE_GST_DEBUG
1154 case PROP_GMYTHTV_DBG:
1155 g_value_set_boolean (value, mythtvsrc->mythtv_msgs_dbg);
1158 case PROP_GMYTHTV_VERSION:
1160 g_value_set_int (value, mythtvsrc->mythtv_version);
1163 case PROP_GMYTHTV_LIVEID:
1165 g_value_set_int (value, mythtvsrc->live_tv_id);
1168 case PROP_GMYTHTV_LIVE:
1169 g_value_set_boolean (value, mythtvsrc->live_tv);
1171 case PROP_GMYTHTV_ENABLE_TIMING_POSITION:
1172 g_value_set_boolean (value, mythtvsrc->enable_timing_position);
1174 case PROP_GMYTHTV_LIVE_CHAINID:
1176 g_value_set_string (value, mythtvsrc->live_chain_id);
1179 case PROP_GMYTHTV_CHANNEL_NUM:
1181 g_value_set_string (value, mythtvsrc->channel_name);
1184 case PROP_GMYTHTV_MAX_TRY:
1186 g_value_set_int (value, mythtvsrc->max_try);
1191 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1194 GST_OBJECT_UNLOCK (mythtvsrc);
1198 plugin_init (GstPlugin * plugin)
1200 return gst_element_register (plugin, "mythtvsrc", GST_RANK_NONE,
1201 GST_TYPE_MYTHTV_SRC);
1204 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
1208 plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);
1211 /*** GSTURIHANDLER INTERFACE *************************************************/
1213 gst_mythtv_src_uri_get_type (void)
1219 gst_mythtv_src_uri_get_protocols (void)
1221 static gchar *protocols[] = { "myth", "myths", NULL };
1226 static const gchar *
1227 gst_mythtv_src_uri_get_uri (GstURIHandler * handler)
1229 GstMythtvSrc *src = GST_MYTHTV_SRC (handler);
1231 return src->uri_name;
1235 gst_mythtv_src_uri_set_uri (GstURIHandler * handler, const gchar * uri)
1237 GstMythtvSrc *src = GST_MYTHTV_SRC (handler);
1241 protocol = gst_uri_get_protocol (uri);
1242 if ((strcmp (protocol, "myth") != 0) && (strcmp (protocol, "myths") != 0)) {
1247 g_object_set (src, "location", uri, NULL);
1253 gst_mythtv_src_uri_handler_init (gpointer g_iface, gpointer iface_data)
1255 GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
1257 iface->get_type = gst_mythtv_src_uri_get_type;
1258 iface->get_protocols = gst_mythtv_src_uri_get_protocols;
1259 iface->get_uri = gst_mythtv_src_uri_get_uri;
1260 iface->set_uri = gst_mythtv_src_uri_set_uri;
1264 size_header_handler (void *userdata, const char *value)
1266 GstMythtvSrc *src = GST_MYTHTV_SRC (userdata);
1268 GST_DEBUG_OBJECT (src, "content size = %lld bytes", src->content_size);