[svn r721] Added GStreamer-like indentation.
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_new_segment (TRUE, 1.0, GST_FORMAT_BYTES, 0, -1, 0));
480 src->update_prog_chain = FALSE;
483 if (result == GMYTH_FILE_READ_NEXT_PROG_CHAIN) {
485 if (buffer != NULL) {
486 g_byte_array_free (buffer, TRUE);
489 goto program_chain_changed; */
490 } else if (result == GMYTH_FILE_READ_OK) {
491 /* remove wasteful, NUV file header data */
492 /* buffer = g_byte_array_remove_range( buffer, 0, 512 ); */
493 /* TODO: need to send a new segment event to NUVDemux? */
494 //gst_pad_push_event (GST_BASE_SRC_PAD (GST_BASE_SRC (psrc)),
495 // gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_BYTES, 0, -1, 0));
497 /* goto change_progchain; */
502 if (G_UNLIKELY (buffer->len < 0)) {
504 if (buffer != NULL) {
505 g_byte_array_free (buffer, TRUE);
509 if (src->live_tv || ( result == GMYTH_FILE_READ_NEXT_PROG_CHAIN ))
510 goto change_progchain;
513 } else if (G_UNLIKELY (buffer->len == 0)) {
515 if (buffer != NULL) {
516 g_byte_array_free (buffer, TRUE);
523 goto program_chain_changed;
527 g_byte_array_append (src->bytes_queue, buffer->data, buffer->len);
528 if (buffer->len > buffer_size_inter)
529 GST_WARNING_OBJECT (src,
530 "INCREASED buffer size! Backend sent more than we ask him... (%d)",
531 abs (buffer->len - buffer_size_inter));
533 src->buffer_remain += buffer->len;
535 if (buffer != NULL) {
536 g_byte_array_free (buffer, TRUE);
541 GST_DEBUG_OBJECT (src,
542 "BYTES READ (actual) = %d, BYTES READ (cumulative) = %llu, "
543 "OFFSET = %llu, CONTENT SIZE = %llu.", read,
544 src->bytes_read, src->read_offset, src->content_size);
549 (src->buffer_remain < MAX_READ_SIZE) ? src->buffer_remain : MAX_READ_SIZE;
551 *outbuf = gst_buffer_new ();
554 GST_DEBUG_OBJECT (src, "read from network? %s!, buffer_remain = %d",
555 (buffer_size_inter ==
556 0) ? "NO, got from buffer" : "YES, go see the backend's log file",
560 GST_BUFFER_SIZE (*outbuf) = buffer_size;
561 GST_BUFFER_MALLOCDATA (*outbuf) = g_malloc0 (GST_BUFFER_SIZE (*outbuf));
562 GST_BUFFER_DATA (*outbuf) = GST_BUFFER_MALLOCDATA (*outbuf);
563 g_memmove (GST_BUFFER_DATA ((*outbuf)), src->bytes_queue->data,
564 GST_BUFFER_SIZE (*outbuf));
565 GST_BUFFER_OFFSET (*outbuf) = src->read_offset;
566 GST_BUFFER_OFFSET_END (*outbuf) =
567 src->read_offset + GST_BUFFER_SIZE (*outbuf);
569 src->buffer_remain -= GST_BUFFER_SIZE (*outbuf);
571 src->read_offset += GST_BUFFER_SIZE (*outbuf);
572 src->bytes_read += GST_BUFFER_SIZE (*outbuf);
573 //GST_DEBUG_OBJECT (src, "Buffer output with size: %d",
574 // GST_BUFFER_SIZE (*outbuf));
576 /* flushs the newly buffer got from byte array */
578 g_byte_array_remove_range (src->bytes_queue, 0, buffer_size);
580 if ( G_UNLIKELY (src->eos) || ( !src->live_tv
581 && ( src->bytes_read >= src->content_size ) ) )
586 const gchar *reason = gst_flow_get_name (ret);
591 const gchar *reason = gst_flow_get_name (ret);
593 GST_DEBUG_OBJECT (src, "pausing task, reason %s", reason);
594 return GST_FLOW_UNEXPECTED;
599 GST_ELEMENT_ERROR (src, RESOURCE, READ,
600 (NULL), ("Could not read any bytes (%i, %s)", read, src->uri_name));
601 return GST_FLOW_ERROR;
605 GST_ELEMENT_ERROR (src, RESOURCE, READ,
606 (NULL), ("Seek failed, go to the next program info... (%i, %s)", read,
609 /* TODO: need to send a new segment event to NUVDemux? */
610 gst_pad_push_event (GST_BASE_SRC_PAD (GST_BASE_SRC (psrc)),
611 gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_TIME, 0, -1, 0));
613 goto program_chain_changed;
619 gst_mythtv_src_get_position (GstMythtvSrc * src)
625 if (src->live_tv == TRUE && (abs (src->content_size - src->bytes_read) <
626 GMYTHTV_TRANSFER_MAX_BUFFER)) {
630 size_tmp = gmyth_recorder_get_file_position (src->spawn_livetv->recorder);
631 if (size_tmp > (src->content_size + GMYTHTV_TRANSFER_MAX_BUFFER))
632 src->content_size = size_tmp;
633 else if (size_tmp > 0 && --max_tries > 0)
635 GST_LOG_OBJECT (src, "GET_POSITION: file_position = %lld", size_tmp);
636 /* sets the last content size amount before it can be updated */
637 src->prev_content_size = src->content_size;
640 return src->content_size;
645 gst_mythtv_src_do_seek (GstBaseSrc * base, GstSegment * segment)
647 GstMythtvSrc *src = GST_MYTHTV_SRC (base);
648 gint64 new_offset = -1;
649 gint64 actual_seek = segment->start;
652 GST_LOG_OBJECT (src, "seek, segment: %" GST_SEGMENT_FORMAT, segment);
654 if (segment->format == GST_FORMAT_TIME) {
658 "Trying to seek at the value (actual_seek = %lld, read_offset = %lld)",
659 actual_seek, src->read_offset);
660 /* verify if it needs to seek */
661 if (src->read_offset != actual_seek) {
663 /* if ( gmyth_backend_info_is_local_file(src->backend_info) ) */
664 if ( IS_GMYTH_FILE_LOCAL(src->file) )
666 gmyth_file_local_seek ( GMYTH_FILE_LOCAL(src->file), segment->start, G_SEEK_SET);
667 else if ( IS_GMYTH_FILE_TRANSFER(src->file) )
669 gmyth_file_transfer_seek ( GMYTH_FILE_TRANSFER(src->file), segment->start, SEEK_SET);
672 "Segment offset start = %lld, SRC Offset = %lld, NEW actual backend SEEK Offset = %lld.",
673 segment->start, src->read_offset, new_offset);
674 if (G_UNLIKELY (new_offset < 0)) {
680 src->read_offset = new_offset;
683 GST_INFO_OBJECT (src, "Failed to set the SEEK on segment!");
693 GST_DEBUG_OBJECT (src, "EOS found on seeking!!!");
699 /* create a socket for connecting to remote server */
701 gst_mythtv_src_start (GstBaseSrc * bsrc)
703 GstMythtvSrc *src = GST_MYTHTV_SRC (bsrc);
705 GString *chain_id_local = NULL;
706 GMythURI *gmyth_uri = NULL;
710 if (src->unique_setup == FALSE) {
711 src->unique_setup = TRUE;
716 gmyth_uri = gmyth_uri_new_with_value (src->uri_name);
717 src->backend_info = gmyth_backend_info_new_with_uri (src->uri_name);
718 src->live_tv = gmyth_uri_is_livetv( gmyth_uri );
719 /* testing UPnP... */
720 /* gmyth_backend_info_set_hostname( src->backend_info, NULL ); */
721 if ( src->live_tv ) {
722 src->spawn_livetv = gmyth_livetv_new (src->backend_info);
724 gchar* ch = gmyth_uri_get_channel_name( gmyth_uri );
726 src->channel_name = ch;
728 if (src->channel_name != NULL) {
730 result = gmyth_livetv_channel_name_setup (src->spawn_livetv, src->channel_name);
731 if (result == FALSE) {
732 GST_INFO_OBJECT (src, "LiveTV setup felt down on error");
738 if (gmyth_livetv_setup (src->spawn_livetv) == FALSE) {
739 GST_INFO_OBJECT (src, "LiveTV setup felt down on error");
745 /* testing change channel... */
746 /* gmyth_recorder_change_channel( src->spawn_livetv->recorder, CHANNEL_DIRECTION_UP ); */
748 src->file = GMYTH_FILE( gmyth_livetv_create_file_transfer (src->spawn_livetv) );
750 if (NULL == src->file) {
751 GST_INFO_OBJECT (src, "[LiveTV] FileTransfer equals to NULL");
756 /* Check if the file is local to this specific client renderer */
757 if ( gmyth_uri_is_local_file(gmyth_uri) )
758 ret = gmyth_file_local_open( GMYTH_FILE_LOCAL(src->file) );
760 ret = gmyth_file_transfer_open( GMYTH_FILE_TRANSFER(src->file), src->spawn_livetv->uri != NULL ?
761 gmyth_uri_get_path(src->spawn_livetv->uri) :
762 src->spawn_livetv->proginfo->pathname->str );
764 /* sets the mythtvsrc "location" property */
765 g_object_set (src, "location", gmyth_file_get_uri (src->file), NULL);
769 GST_INFO_OBJECT (src, "Error: couldn't open the FileTransfer from LiveTV source!" );
770 g_object_unref( src->file );
776 /* Check if the file is local to this specific client renderer, and tries to open
779 if ( gmyth_uri_is_local_file(gmyth_uri) )
781 src->file = GMYTH_FILE(gmyth_file_local_new(src->backend_info));
782 ret = gmyth_file_local_open ( GMYTH_FILE_LOCAL( src->file ) );
784 src->file = GMYTH_FILE(gmyth_file_transfer_new(src->backend_info));
785 ret = gmyth_file_transfer_open ( GMYTH_FILE_TRANSFER(src->file), src->uri_name );
788 } /* if (else) - recorded FileTransfer */
790 if (NULL == src->file) {
791 GST_INFO_OBJECT (src, "FileTransfer is NULL");
794 /*GST_INFO_OBJECT( src, "uri = %s", src->spawn_livetv->file); */
797 #ifndef GST_DISABLE_GST_DEBUG
798 if (src->mythtv_msgs_dbg)
799 GST_INFO_OBJECT (src,
800 "MythTV FileTransfer request failed when setting up socket connection!");
802 goto begin_req_failed;
805 GST_INFO_OBJECT (src,
806 "MythTV FileTransfer filesize = %lld, content_size = %lld!",
807 gmyth_file_get_filesize( src->file ), src->content_size);
809 src->content_size = gmyth_file_get_filesize (src->file);
811 msg = gst_message_new_duration (GST_OBJECT (src), GST_FORMAT_BYTES, src->content_size);
812 gst_element_post_message (GST_ELEMENT (src), msg);
815 src->do_start = FALSE;
817 /* this is used for the buffer cache */
818 src->bytes_queue = g_byte_array_sized_new (INTERNAL_BUFFER_SIZE);
819 src->buffer_remain = 0;
821 gst_pad_push_event (GST_BASE_SRC_PAD (GST_BASE_SRC (src)),
822 gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_TIME, 0,
823 src->content_size, 0));
826 if (gmyth_uri != NULL)
828 g_object_unref (gmyth_uri);
832 if (chain_id_local != NULL) {
833 g_string_free (chain_id_local, TRUE);
834 chain_id_local = NULL;
841 if (gmyth_uri != NULL)
843 g_object_unref (gmyth_uri);
847 if (src->spawn_livetv != NULL) {
848 g_object_unref (src->spawn_livetv);
849 src->spawn_livetv = NULL;
852 GST_ELEMENT_ERROR (src, LIBRARY, INIT,
853 (NULL), ("Could not initialize MythTV library (%i, %s)", ret,
857 gst_mythtv_src_clear (src);
861 if (gmyth_uri != NULL)
863 g_object_unref (gmyth_uri);
867 GST_ELEMENT_ERROR (src, LIBRARY, INIT,
868 (NULL), ("Could not begin request sent to MythTV server (%i, %s)", ret,
875 gst_mythtv_src_get_size (GstBaseSrc * bsrc, guint64 * size)
877 GstMythtvSrc *src = GST_MYTHTV_SRC (bsrc);
880 GST_LOG_OBJECT (src, "Differs from previous content size: %d (max.: %d)",
881 abs (src->content_size - src->prev_content_size),
882 GMYTHTV_TRANSFER_MAX_BUFFER);
886 } else if (src->live_tv && src->enable_timing_position
887 && (abs (src->content_size - src->bytes_read) <
888 GMYTHTV_TRANSFER_MAX_BUFFER)) {
891 gmyth_recorder_get_file_position (src->spawn_livetv->recorder);
892 if (new_offset > 0 && new_offset > src->content_size) {
893 src->content_size = new_offset;
894 } else if (new_offset < src->content_size) {
895 src->update_prog_chain = TRUE;
900 *size = src->content_size;
901 GST_LOG_OBJECT (src, "Content size = %lld", src->content_size);
907 /* close the socket and associated resources
908 * used both to recover from errors and go to NULL state */
910 gst_mythtv_src_stop (GstBaseSrc * bsrc)
912 GstMythtvSrc *src = GST_MYTHTV_SRC (bsrc);
914 gst_mythtv_src_clear (src);
916 /* src->eos = FALSE; */
922 gst_mythtv_src_handle_event (GstPad * pad, GstEvent * event)
924 GstMythtvSrc *src = GST_MYTHTV_SRC (GST_PAD_PARENT (pad));
925 gint64 cont_size = 0;
926 gboolean ret = FALSE;
928 switch (GST_EVENT_TYPE (event)) {
930 GST_WARNING_OBJECT (src, "Got EOS event");
933 cont_size = gst_mythtv_src_get_position (src);
934 if (cont_size > src->content_size) {
935 src->content_size = cont_size;
939 gst_element_set_state (GST_ELEMENT (src), GST_STATE_NULL);
940 gst_element_set_locked_state (GST_ELEMENT (src), FALSE);
945 ret = gst_pad_event_default (pad, event);
952 gst_mythtv_src_is_seekable (GstBaseSrc * push_src)
958 gst_mythtv_src_handle_query (GstPad * pad, GstQuery * query)
960 gboolean res = FALSE;
961 GstMythtvSrc *myth = GST_MYTHTV_SRC (gst_pad_get_parent (pad));
965 switch (GST_QUERY_TYPE (query)) {
966 case GST_QUERY_POSITION:
968 gst_query_parse_position (query, &formt, NULL);
969 if (formt == GST_FORMAT_BYTES) {
970 gst_query_set_position (query, formt, myth->read_offset);
971 GST_DEBUG_OBJECT (myth, "POS %" G_GINT64_FORMAT, myth->read_offset);
973 } else if (formt == GST_FORMAT_TIME) {
974 res = gst_pad_query_default (pad, query);
978 case GST_QUERY_DURATION:
980 gst_query_parse_duration (query, &formt, NULL);
981 if (formt == GST_FORMAT_BYTES) {
982 gint64 size = myth->content_size;
983 gst_query_set_duration (query, GST_FORMAT_BYTES, 10);
984 GST_DEBUG_OBJECT (myth, "SIZE %" G_GINT64_FORMAT, size);
986 } else if (formt == GST_FORMAT_TIME) {
987 res = gst_pad_query_default (pad, query);
993 res = gst_pad_query_default (pad, query);
998 gst_object_unref (myth);
1003 static GstStateChangeReturn
1004 gst_mythtv_src_change_state (GstElement * element, GstStateChange transition)
1006 GstStateChangeReturn ret = GST_STATE_CHANGE_FAILURE;
1007 GstMythtvSrc *src = GST_MYTHTV_SRC (element);
1009 g_debug ("MYTHSRC: state_changed");
1011 switch (transition) {
1012 case GST_STATE_CHANGE_NULL_TO_READY:
1014 case GST_STATE_CHANGE_READY_TO_PAUSED:
1015 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
1017 if (!gmyth_recorder_send_frontend_ready_command (src->spawn_livetv->
1019 GST_WARNING_OBJECT (src,
1020 "Couldn't send the FRONTEND_READY message to the backend!");
1022 GST_DEBUG_OBJECT (src, "FRONTEND_READY was sent to the backend");
1030 g_debug ("MYTHSRC: state_changed 1");
1032 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
1033 if (ret == GST_STATE_CHANGE_FAILURE)
1037 g_debug ("MYTHSRC: state_changed2");
1039 switch (transition) {
1040 case GST_STATE_CHANGE_READY_TO_NULL:
1041 gst_mythtv_src_clear (src);
1043 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
1044 case GST_STATE_CHANGE_PAUSED_TO_READY:
1050 g_debug ("MYTHSRC: state_changed: DONE");
1055 gst_mythtv_src_set_property (GObject * object, guint prop_id,
1056 const GValue * value, GParamSpec * pspec)
1058 GstMythtvSrc *mythtvsrc = GST_MYTHTV_SRC (object);
1060 GST_OBJECT_LOCK (mythtvsrc);
1064 if (!g_value_get_string (value)) {
1065 GST_WARNING ("location property cannot be NULL");
1069 if (mythtvsrc->uri_name != NULL) {
1070 g_free (mythtvsrc->uri_name);
1071 mythtvsrc->uri_name = NULL;
1073 mythtvsrc->uri_name = g_value_dup_string (value);
1077 #ifndef GST_DISABLE_GST_DEBUG
1078 case PROP_GMYTHTV_DBG:
1080 mythtvsrc->mythtv_msgs_dbg = g_value_get_boolean (value);
1084 case PROP_GMYTHTV_VERSION:
1086 mythtvsrc->mythtv_version = g_value_get_int (value);
1089 case PROP_GMYTHTV_LIVEID:
1091 mythtvsrc->live_tv_id = g_value_get_int (value);
1094 case PROP_GMYTHTV_LIVE:
1096 mythtvsrc->live_tv = g_value_get_boolean (value);
1099 case PROP_GMYTHTV_ENABLE_TIMING_POSITION:
1101 mythtvsrc->enable_timing_position = g_value_get_boolean (value);
1104 case PROP_GMYTHTV_LIVE_CHAINID:
1106 if (!g_value_get_string (value)) {
1107 GST_WARNING ("MythTV Live chainid property cannot be NULL");
1111 if (mythtvsrc->live_chain_id != NULL) {
1112 g_free (mythtvsrc->live_chain_id);
1113 mythtvsrc->live_chain_id = NULL;
1115 mythtvsrc->live_chain_id = g_value_dup_string (value);
1118 case PROP_GMYTHTV_CHANNEL_NUM:
1120 mythtvsrc->channel_name = g_value_dup_string (value);
1123 case PROP_GMYTHTV_MAX_TRY:
1125 mythtvsrc->max_try = g_value_get_int (value);
1129 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1133 GST_OBJECT_UNLOCK (mythtvsrc);
1137 gst_mythtv_src_get_property (GObject * object, guint prop_id,
1138 GValue * value, GParamSpec * pspec)
1140 GstMythtvSrc *mythtvsrc = GST_MYTHTV_SRC (object);
1142 GST_OBJECT_LOCK (mythtvsrc);
1146 g_value_set_string (value, mythtvsrc->uri_name);
1149 #ifndef GST_DISABLE_GST_DEBUG
1150 case PROP_GMYTHTV_DBG:
1151 g_value_set_boolean (value, mythtvsrc->mythtv_msgs_dbg);
1154 case PROP_GMYTHTV_VERSION:
1156 g_value_set_int (value, mythtvsrc->mythtv_version);
1159 case PROP_GMYTHTV_LIVEID:
1161 g_value_set_int (value, mythtvsrc->live_tv_id);
1164 case PROP_GMYTHTV_LIVE:
1165 g_value_set_boolean (value, mythtvsrc->live_tv);
1167 case PROP_GMYTHTV_ENABLE_TIMING_POSITION:
1168 g_value_set_boolean (value, mythtvsrc->enable_timing_position);
1170 case PROP_GMYTHTV_LIVE_CHAINID:
1172 g_value_set_string (value, mythtvsrc->live_chain_id);
1175 case PROP_GMYTHTV_CHANNEL_NUM:
1177 g_value_set_string (value, mythtvsrc->channel_name);
1180 case PROP_GMYTHTV_MAX_TRY:
1182 g_value_set_int (value, mythtvsrc->max_try);
1187 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1190 GST_OBJECT_UNLOCK (mythtvsrc);
1194 plugin_init (GstPlugin * plugin)
1196 return gst_element_register (plugin, "mythtvsrc", GST_RANK_NONE,
1197 GST_TYPE_MYTHTV_SRC);
1200 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
1204 plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);
1207 /*** GSTURIHANDLER INTERFACE *************************************************/
1209 gst_mythtv_src_uri_get_type (void)
1215 gst_mythtv_src_uri_get_protocols (void)
1217 static gchar *protocols[] = { "myth", "myths", NULL };
1222 static const gchar *
1223 gst_mythtv_src_uri_get_uri (GstURIHandler * handler)
1225 GstMythtvSrc *src = GST_MYTHTV_SRC (handler);
1227 return src->uri_name;
1231 gst_mythtv_src_uri_set_uri (GstURIHandler * handler, const gchar * uri)
1233 GstMythtvSrc *src = GST_MYTHTV_SRC (handler);
1237 protocol = gst_uri_get_protocol (uri);
1238 if ((strcmp (protocol, "myth") != 0) && (strcmp (protocol, "myths") != 0)) {
1243 g_object_set (src, "location", uri, NULL);
1249 gst_mythtv_src_uri_handler_init (gpointer g_iface, gpointer iface_data)
1251 GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
1253 iface->get_type = gst_mythtv_src_uri_get_type;
1254 iface->get_protocols = gst_mythtv_src_uri_get_protocols;
1255 iface->get_uri = gst_mythtv_src_uri_get_uri;
1256 iface->set_uri = gst_mythtv_src_uri_set_uri;
1260 size_header_handler (void *userdata, const char *value)
1262 GstMythtvSrc *src = GST_MYTHTV_SRC (userdata);
1264 GST_DEBUG_OBJECT (src, "content size = %lld bytes", src->content_size);