diff options
Diffstat (limited to 'ext/mythtv')
| -rw-r--r-- | ext/mythtv/Makefile.am | 20 | ||||
| -rw-r--r-- | ext/mythtv/gstmythtvsrc.c | 1351 | ||||
| -rw-r--r-- | ext/mythtv/gstmythtvsrc.h | 131 |
3 files changed, 1502 insertions, 0 deletions
diff --git a/ext/mythtv/Makefile.am b/ext/mythtv/Makefile.am new file mode 100644 index 00000000..7813731c --- /dev/null +++ b/ext/mythtv/Makefile.am @@ -0,0 +1,20 @@ + +plugin_LTLIBRARIES = libgstmythtvsrc.la + +libgstmythtvsrc_la_SOURCES = \ + gstmythtvsrc.c + +libgstmythtvsrc_la_CFLAGS = \ + $(GST_CFLAGS) \ + $(GMYTH_CFLAGS) + +libgstmythtvsrc_la_LDFLAGS = \ + $(GST_PLUGIN_LDFLAGS) + +libgstmythtvsrc_la_LIBADD = \ + $(GST_BASE_LIBS) \ + $(GMYTH_LIBS) + +noinst_HEADERS = \ + gstmythtvsrc.h + diff --git a/ext/mythtv/gstmythtvsrc.c b/ext/mythtv/gstmythtvsrc.c new file mode 100644 index 00000000..7c72cee4 --- /dev/null +++ b/ext/mythtv/gstmythtvsrc.c @@ -0,0 +1,1351 @@ +/* GStreamer MythTV Plug-in + * Copyright (C) <2006> Rosfran Borges <rosfran.borges@indt.org.br> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ +/** + * When using the LiveTV content, put the location URI in the following + * format: + * + * myth://mythtv:mythtv@xxx.xxx.xxx.xxx:6543/?mythconverg + * + * Where the first field is the protocol (myth), the second and third are user + * name (mythtv) and password (mythtv), then backend host name and port number, + * and the last field is the database name (mythconverg). + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "gstmythtvsrc.h" +#include <gmyth/gmyth_file_transfer.h> +#include <gmyth/gmyth_livetv.h> + +#include <gmyth/gmyth_socket.h> +#include <gmyth/gmyth_tvchain.h> + +#include <string.h> +#include <unistd.h> + +GST_DEBUG_CATEGORY_STATIC (mythtvsrc_debug); +#define GST_CAT_DEFAULT mythtvsrc_debug + +#define GST_GMYTHTV_ID_NUM 1 + +#define GST_GMYTHTV_CHANNEL_DEFAULT_NUM (-1) + +#define GMYTHTV_VERSION_DEFAULT 30 + +#define GMYTHTV_TRANSFER_MAX_WAITS 100 + +#define GMYTHTV_TRANSFER_MAX_RESENDS 2 + +#define GMYTHTV_TRANSFER_MAX_BUFFER (128*1024) + +#define MAX_READ_SIZE (4*1024) + +#define GST_FLOW_ERROR_NO_DATA (-101) + +#define REQUEST_MAX_SIZE (64*1024) + +#define INTERNAL_BUFFER_SIZE (90*1024) + +static const GstElementDetails gst_mythtv_src_details = +GST_ELEMENT_DETAILS ("MythTV client source", + "Source/Network", + "Control and receive data as a client over the network " + "via raw socket connections using the MythTV protocol", + "Rosfran Borges <rosfran.borges@indt.org.br>"); + +static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src", + GST_PAD_SRC, + GST_PAD_ALWAYS, + GST_STATIC_CAPS ("video/x-nuv")); + +enum +{ + PROP_0, + PROP_LOCATION, +#ifndef GST_DISABLE_GST_DEBUG + PROP_GMYTHTV_DBG, +#endif + PROP_GMYTHTV_VERSION, + PROP_GMYTHTV_LIVE, + PROP_GMYTHTV_LIVEID, + PROP_GMYTHTV_LIVE_CHAINID, + PROP_GMYTHTV_ENABLE_TIMING_POSITION, + PROP_GMYTHTV_CHANNEL_NUM +}; + +static void gst_mythtv_src_finalize (GObject * gobject); + +static GstFlowReturn gst_mythtv_src_create (GstPushSrc * psrc, + GstBuffer ** outbuf); + +static gboolean gst_mythtv_src_start (GstBaseSrc * bsrc); +static gboolean gst_mythtv_src_stop (GstBaseSrc * bsrc); +static gboolean gst_mythtv_src_get_size (GstBaseSrc * bsrc, guint64 * size); +static gboolean gst_mythtv_src_is_seekable (GstBaseSrc * push_src); + +static gboolean gst_mythtv_src_do_seek (GstBaseSrc * base, + GstSegment * segment); + +static gboolean gst_mythtv_src_next_program_chain (GstMythtvSrc * src); + +static GstStateChangeReturn +gst_mythtv_src_change_state (GstElement * element, GstStateChange transition); + +static void gst_mythtv_src_set_property (GObject * object, guint prop_id, + const GValue * value, GParamSpec * pspec); +static void gst_mythtv_src_get_property (GObject * object, guint prop_id, + GValue * value, GParamSpec * pspec); + +static void gst_mythtv_src_uri_handler_init (gpointer g_iface, + gpointer iface_data); + +static gboolean gst_mythtv_src_handle_query (GstPad * pad, GstQuery * query); + +static gboolean gst_mythtv_src_handle_event (GstPad * pad, GstEvent * event); + +static gint do_read_request_response (GstMythtvSrc * src, guint size, + GByteArray * data_ptr); + +static void +_urihandler_init (GType type) +{ + static const GInterfaceInfo urihandler_info = { + gst_mythtv_src_uri_handler_init, + NULL, + NULL + }; + + g_type_add_interface_static (type, GST_TYPE_URI_HANDLER, &urihandler_info); + + GST_DEBUG_CATEGORY_INIT (mythtvsrc_debug, "mythtvsrc", 0, "MythTV src"); +} + +GST_BOILERPLATE_FULL (GstMythtvSrc, gst_mythtv_src, GstPushSrc, + GST_TYPE_PUSH_SRC, _urihandler_init) + + static void gst_mythtv_src_base_init (gpointer g_class) +{ + GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); + + gst_element_class_add_pad_template (element_class, + gst_static_pad_template_get (&srctemplate)); + + gst_element_class_set_details (element_class, &gst_mythtv_src_details); + + element_class->change_state = gst_mythtv_src_change_state; + +} + +static void +gst_mythtv_src_class_init (GstMythtvSrcClass * klass) +{ + GObjectClass *gobject_class; + GstPushSrcClass *gstpushsrc_class; + GstBaseSrcClass *gstbasesrc_class; + + gobject_class = (GObjectClass *) klass; + gstbasesrc_class = (GstBaseSrcClass *) klass; + gstpushsrc_class = (GstPushSrcClass *) klass; + + gobject_class->set_property = gst_mythtv_src_set_property; + gobject_class->get_property = gst_mythtv_src_get_property; + gobject_class->finalize = gst_mythtv_src_finalize; + + g_object_class_install_property + (gobject_class, PROP_LOCATION, + g_param_spec_string ("location", "Location", + "The location. In the form:" + "\n\t\t\tmyth://a.com/file.nuv" + "\n\t\t\tmyth://a.com:23223/file.nuv " + "\n\t\t\ta.com/file.nuv - default scheme 'myth'", + "", G_PARAM_READWRITE)); + + g_object_class_install_property + (gobject_class, PROP_GMYTHTV_VERSION, + g_param_spec_int ("mythtv-version", "mythtv-version", + "Change MythTV version", 26, 30, 26, G_PARAM_READWRITE)); + + g_object_class_install_property + (gobject_class, PROP_GMYTHTV_LIVEID, + g_param_spec_int ("mythtv-live-id", "mythtv-live-id", + "Change MythTV version", + 0, 200, GST_GMYTHTV_ID_NUM, G_PARAM_READWRITE)); + + g_object_class_install_property + (gobject_class, PROP_GMYTHTV_LIVE_CHAINID, + g_param_spec_string ("mythtv-live-chainid", "mythtv-live-chainid", + "Sets the MythTV chain ID (from TV Chain)", "", G_PARAM_READWRITE)); + + g_object_class_install_property + (gobject_class, PROP_GMYTHTV_LIVE, + g_param_spec_boolean ("mythtv-live", "mythtv-live", + "Enable MythTV Live TV content streaming", FALSE, G_PARAM_READWRITE)); + + g_object_class_install_property + (gobject_class, PROP_GMYTHTV_ENABLE_TIMING_POSITION, + g_param_spec_boolean ("mythtv-enable-timing-position", + "mythtv-enable-timing-position", + "Enable MythTV Live TV content size continuous updating", FALSE, + G_PARAM_READWRITE)); + + g_object_class_install_property + (gobject_class, PROP_GMYTHTV_CHANNEL_NUM, + g_param_spec_int ("mythtv-channel", "mythtv-channel", + "Change MythTV channel number", + -1, 99999, GST_GMYTHTV_CHANNEL_DEFAULT_NUM, G_PARAM_READWRITE)); + +#ifndef GST_DISABLE_GST_DEBUG + g_object_class_install_property + (gobject_class, PROP_GMYTHTV_DBG, + g_param_spec_boolean ("mythtv-debug", "mythtv-debug", + "Enable MythTV debug messages", FALSE, G_PARAM_READWRITE)); +#endif + + gstbasesrc_class->start = gst_mythtv_src_start; + gstbasesrc_class->stop = gst_mythtv_src_stop; + gstbasesrc_class->get_size = gst_mythtv_src_get_size; + gstbasesrc_class->is_seekable = gst_mythtv_src_is_seekable; + + gstbasesrc_class->do_seek = gst_mythtv_src_do_seek; + gstpushsrc_class->create = gst_mythtv_src_create; + + GST_DEBUG_CATEGORY_INIT (mythtvsrc_debug, "mythtvsrc", 0, + "MythTV Client Source"); +} + +static void +gst_mythtv_src_init (GstMythtvSrc * this, GstMythtvSrcClass * g_class) +{ + this->file_transfer = NULL; + + this->unique_setup = FALSE; + + this->mythtv_version = GMYTHTV_VERSION_DEFAULT; + + this->state = GST_MYTHTV_SRC_FILE_TRANSFER; + + this->bytes_read = 0; + + this->prev_content_size = 0; + + this->content_size = 0; + this->read_offset = 0; + + this->content_size_last = 0; + + this->live_tv = FALSE; + + this->enable_timing_position = FALSE; + this->update_prog_chain = FALSE; + + this->user_agent = g_strdup ("mythtvsrc"); + this->mythtv_caps = NULL; + this->update_prog_chain = FALSE; + + this->channel_num = GST_GMYTHTV_CHANNEL_DEFAULT_NUM; + + this->eos = FALSE; + + this->bytes_queue = NULL; + + this->wait_to_transfer = 0; + + gst_base_src_set_format (GST_BASE_SRC (this), GST_FORMAT_BYTES); + + gst_pad_set_event_function (GST_BASE_SRC_PAD (GST_BASE_SRC (this)), + gst_mythtv_src_handle_event); + gst_pad_set_query_function (GST_BASE_SRC_PAD (GST_BASE_SRC (this)), + gst_mythtv_src_handle_query); + +} + +static void +gst_mythtv_src_finalize (GObject * gobject) +{ + GstMythtvSrc *this = GST_MYTHTV_SRC (gobject); + + if (this->mythtv_caps) { + gst_caps_unref (this->mythtv_caps); + this->mythtv_caps = NULL; + } + + if (this->file_transfer) { + g_object_unref (this->file_transfer); + this->file_transfer = NULL; + } + + if (this->spawn_livetv) { + g_object_unref (this->spawn_livetv); + this->spawn_livetv = NULL; + } + + if (this->backend_info) { + g_object_unref (this->backend_info); + this->backend_info = NULL; + } + + if (this->uri_name) { + g_free (this->uri_name); + } + + if (this->user_agent) { + g_free (this->user_agent); + } + + if (this->bytes_queue) { + g_byte_array_free (this->bytes_queue, TRUE); + this->bytes_queue = NULL; + } + + G_OBJECT_CLASS (parent_class)->finalize (gobject); +} + +static gint +do_read_request_response (GstMythtvSrc * src, guint size, GByteArray * data_ptr) +{ + gint read = 0; + guint sizetoread = size; + gint max_iters = GMYTHTV_TRANSFER_MAX_RESENDS; + + GST_LOG_OBJECT (src, "Starting: [%s] Reading %d bytes...", __FUNCTION__, + sizetoread); + + /* Loop sending the Myth File Transfer request: + * Retry whilst authentication fails and we supply it. */ + gint len = 0; + + while (sizetoread == size && --max_iters > 0) { + + len = gmyth_file_transfer_read (src->file_transfer, + data_ptr, sizetoread, TRUE); + + if (len > 0) { + read += len; + sizetoread -= len; + } else if (len < 0) { + + if (src->live_tv == FALSE) { + read = -1; + goto eos; + } else { + if (len == GMYTHTV_FILE_TRANSFER_READ_ERROR) { /* -314 */ + GST_INFO_OBJECT (src, "[%s] [LiveTV] FileTransfer READ_ERROR!", + __FUNCTION__); + goto done; + } else if (len == GMYTHTV_FILE_TRANSFER_NEXT_PROG_CHAIN) { /* -315 */ + GST_INFO_OBJECT (src, + "[%s] [LiveTV] FileTransfer - Go to the next program chain!", + __FUNCTION__); + continue; + } + goto done; + } + + } else if (len == 0) + goto done; + + if (read == sizetoread) + goto done; + } + + if ((read < 0 && !src->live_tv) || max_iters == 0) + goto eos; + + goto done; + +eos: + src->eos = TRUE; + +done: + return read; +} + +static GstFlowReturn +gst_mythtv_src_create (GstPushSrc * psrc, GstBuffer ** outbuf) +{ + GstMythtvSrc *src; + GstFlowReturn ret = GST_FLOW_OK; + gint read = -1; + + src = GST_MYTHTV_SRC (psrc); + + /* The caller should know the number of bytes and not read beyond EOS. */ + if (G_UNLIKELY (src->eos)) + goto eos; + if (G_UNLIKELY (src->update_prog_chain)) + goto change_progchain; + + GST_DEBUG_OBJECT (src, "[%s] offset = %llu, size = %d...", __FUNCTION__, + src->read_offset, MAX_READ_SIZE); + + GST_DEBUG_OBJECT (src, "[%s]Create: buffer_remain: %d, buffer_size = %d.", + __FUNCTION__, (gint) src->buffer_remain, src->bytes_queue->len); + + /* just get from the byte array, no network effort... */ + if ((src->buffer_remain = src->bytes_queue->len) < MAX_READ_SIZE) { + GByteArray *buffer = NULL; + guint buffer_size_inter = (INTERNAL_BUFFER_SIZE - src->buffer_remain); + + if (buffer_size_inter > REQUEST_MAX_SIZE) + buffer_size_inter = REQUEST_MAX_SIZE; + + buffer = g_byte_array_new (); + + read = do_read_request_response (src, buffer_size_inter, buffer); + + if (G_UNLIKELY (read < 0)) { + if (src->live_tv) + goto change_progchain; + else + goto read_error; + } else if (G_UNLIKELY (read == 0)) { + if (!src->live_tv) + goto eos; + else + goto done; + } + + if (G_UNLIKELY (src->update_prog_chain)) + goto change_progchain; + + src->bytes_queue = + g_byte_array_append (src->bytes_queue, buffer->data, read); + if (read > buffer_size_inter) + GST_WARNING_OBJECT (src, + "[%s]INCREASED buffer size! Backend sent more than we ask him... (%d)", + __FUNCTION__, abs (read - buffer_size_inter)); + + src->buffer_remain += read; + + if (buffer != NULL) { + g_byte_array_free (buffer, TRUE); + buffer = NULL; + } + + GST_DEBUG_OBJECT (src, + "[%s]BYTES READ (actual) = %d, BYTES READ (cumulative) = %llu, " + "OFFSET = %llu, CONTENT SIZE = %llu.", __FUNCTION__, read, + src->bytes_read, src->read_offset, src->content_size); + + } + + guint buffer_size = + (src->buffer_remain < MAX_READ_SIZE) ? src->buffer_remain : MAX_READ_SIZE; + + *outbuf = gst_buffer_new (); + + /* gets the first buffer_size bytes from the byte array buffer variable */ + /* guint8 *buf = g_memdup( src->bytes_queue->data, buffer_size ); */ + + GST_DEBUG_OBJECT (src, "[%s] read from network? %s!, buffer_remain = %d", + __FUNCTION__, + read == -1 ? "NO, got from buffer" : "YES, go see the backend's log file", + src->buffer_remain); + + GST_BUFFER_SIZE (*outbuf) = buffer_size; + GST_BUFFER_MALLOCDATA (*outbuf) = g_malloc0 (GST_BUFFER_SIZE (*outbuf)); + GST_BUFFER_DATA (*outbuf) = GST_BUFFER_MALLOCDATA (*outbuf); + g_memmove (GST_BUFFER_DATA ((*outbuf)), src->bytes_queue->data, + GST_BUFFER_SIZE (*outbuf)); + GST_BUFFER_OFFSET (*outbuf) = src->read_offset; + GST_BUFFER_OFFSET_END (*outbuf) = + src->read_offset + GST_BUFFER_SIZE (*outbuf); + + src->buffer_remain -= GST_BUFFER_SIZE (*outbuf); + + src->read_offset += GST_BUFFER_SIZE (*outbuf); + src->bytes_read += GST_BUFFER_SIZE (*outbuf); + GST_DEBUG_OBJECT (src, "[%s]Buffer output with size: %d", __FUNCTION__, + GST_BUFFER_SIZE (*outbuf)); + + /* flushs the newly buffer got from byte array */ + src->bytes_queue = + g_byte_array_remove_range (src->bytes_queue, 0, buffer_size); + + GST_DEBUG_OBJECT (src, "Got buffer: [%s]BUFFER --->SIZE = %d, OFFSET = %llu, " + "OFFSET_END = %llu.", __FUNCTION__, GST_BUFFER_SIZE (*outbuf), + GST_BUFFER_OFFSET (*outbuf), GST_BUFFER_OFFSET_END (*outbuf)); + + GST_DEBUG_OBJECT (src, "[%s]CONTENT_SIZE = %llu, BYTES_READ = %llu.", + __FUNCTION__, src->content_size, src->bytes_read); + + if (G_UNLIKELY (src->eos) || (!src->live_tv + && (src->bytes_read >= src->content_size))) + goto eos; + +done: + { + const gchar *reason = gst_flow_get_name (ret); + + GST_DEBUG_OBJECT (src, "DONE task, reason %s", reason); + return ret; + } +eos: + { + const gchar *reason = gst_flow_get_name (ret); + + GST_DEBUG_OBJECT (src, "pausing task, reason %s", reason); + return GST_FLOW_UNEXPECTED; + } + /* ERRORS */ +read_error: + { + GST_ELEMENT_ERROR (src, RESOURCE, READ, + (NULL), ("Could not read any bytes (%i, %s)", read, src->uri_name)); + return GST_FLOW_ERROR; + } +change_progchain: + { + GST_ELEMENT_ERROR (src, RESOURCE, READ, + (NULL), ("Seek failed, go to the next program info... (%i, %s)", read, + src->uri_name)); + + gst_pad_push_event (GST_BASE_SRC_PAD (GST_BASE_SRC (psrc)), + gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_TIME, 0, -1, 0)); + /* go to the next program chain */ + src->unique_setup = FALSE; + src->update_prog_chain = TRUE; + + gst_mythtv_src_next_program_chain (src); + + return GST_FLOW_ERROR_NO_DATA; + } + +} + +gint64 +gst_mythtv_src_get_position (GstMythtvSrc * src) +{ + + gint64 size_tmp = 0; + guint max_tries = 2; + + if (src->live_tv == TRUE && (abs (src->content_size - src->bytes_read) < + GMYTHTV_TRANSFER_MAX_BUFFER)) { + + get_file_pos: + g_usleep (10); + size_tmp = gmyth_recorder_get_file_position (src->spawn_livetv->recorder); + if (size_tmp > (src->content_size + GMYTHTV_TRANSFER_MAX_BUFFER)) + src->content_size = size_tmp; + else if (size_tmp > 0 && --max_tries > 0) + goto get_file_pos; + GST_LOG_OBJECT (src, "[%s] GET_POSITION: file_position = %lld", + __FUNCTION__, size_tmp); + /* sets the last content size amount before it can be updated */ + src->prev_content_size = src->content_size; + } + + return src->content_size; + +} + +static gboolean +gst_mythtv_src_do_seek (GstBaseSrc * base, GstSegment * segment) +{ + GstMythtvSrc *src = GST_MYTHTV_SRC (base); + gint64 new_offset = -1; + gint64 actual_seek = segment->start; + gboolean ret = TRUE; + + GST_LOG_OBJECT (src, "[%s]DO Seek called! (start = %lld, stop = %lld)", + __FUNCTION__, segment->start, segment->stop); + + if (segment->format == GST_FORMAT_TIME) { + goto done; + } + GST_LOG_OBJECT (src, + "[%s]Trying to seek at the value (actual_seek = %lld, read_offset = %lld)", + __FUNCTION__, actual_seek, src->read_offset); + /* verify if it needs to seek */ + if (src->read_offset != actual_seek) { + + new_offset = + gmyth_file_transfer_seek (src->file_transfer, segment->start, SEEK_SET); + + GST_LOG_OBJECT (src, + "[%s] Segment offset start = %lld, SRC Offset = %lld, NEW actual backend SEEK Offset = %lld.", + __FUNCTION__, segment->start, src->read_offset, new_offset); + if (G_UNLIKELY (new_offset < 0)) { + ret = FALSE; + if (src->live_tv) + goto change_progchain; + else + goto eos; + } + + src->read_offset = new_offset; + + if (ret == FALSE) { + GST_INFO_OBJECT (src, "[%s] Failed to set the SEEK on segment!", + __FUNCTION__); + } + + } + +done: + return ret; + +eos: + { + + GST_DEBUG_OBJECT (src, "EOS found on seeking!!!"); + return FALSE; + } +change_progchain: + { + GST_ELEMENT_ERROR (src, RESOURCE, READ, + (NULL), ("Seek failed, go to the next program info... (%i, %s)", read, + src->uri_name)); + + gst_pad_push_event (GST_BASE_SRC_PAD (base), + gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_TIME, 0, -1, 0)); + /* go to the next program chain */ + src->unique_setup = FALSE; + src->update_prog_chain = TRUE; + + gst_mythtv_src_next_program_chain (src); + + return TRUE; + } + +} + +/* create a socket for connecting to remote server */ +static gboolean +gst_mythtv_src_start (GstBaseSrc * bsrc) +{ + GstMythtvSrc *src = GST_MYTHTV_SRC (bsrc); + + GString *chain_id_local = NULL; + + gboolean ret = TRUE; + + if (G_UNLIKELY (src->update_prog_chain)) + goto change_progchain; + + if (src->unique_setup == FALSE) { + src->unique_setup = TRUE; + } else { + goto done; + } + + src->backend_info = gmyth_backend_info_new_with_uri (src->uri_name); + /* testing UPnP... */ + /* gmyth_backend_info_set_hostname( src->backend_info, NULL ); */ + if (src->live_tv) { + src->spawn_livetv = gmyth_livetv_new (); + + if (src->channel_num != GST_GMYTHTV_CHANNEL_DEFAULT_NUM) { + if (gmyth_livetv_channel_setup (src->spawn_livetv, src->channel_num, + src->backend_info) == FALSE) { + GST_INFO_OBJECT (src, "[%s] LiveTV setup felt down on error!!", + __FUNCTION__); + ret = FALSE; + goto init_failed; + } + } else { + if (gmyth_livetv_setup (src->spawn_livetv, src->backend_info) == FALSE) { + GST_INFO_OBJECT (src, "[%s] LiveTV setup felt down on error!!", + __FUNCTION__); + ret = FALSE; + goto init_failed; + } + } + + src->file_transfer = gmyth_livetv_create_file_transfer (src->spawn_livetv); + + if (NULL == src->file_transfer) { + GST_INFO_OBJECT (src, "[%s] [LiveTV] FileTransfer equals to NULL!!!", + __FUNCTION__); + ret = FALSE; + goto init_failed; + } + } else { + + src->file_transfer = gmyth_file_transfer_new (src->backend_info); + + ret = gmyth_file_transfer_open (src->file_transfer, src->uri_name); + + } + + if (NULL == src->file_transfer) { + GST_INFO_OBJECT (src, "[%s] FileTransfer equals to NULL!!!", __FUNCTION__); + goto init_failed; + } + /*GST_INFO_OBJECT( src, "[%s] uri = %s.", __FUNCTION__, src->spawn_livetv->file_transfer ); */ + + if (src->live_tv == TRUE && ret == TRUE) { + /* loop finished, set the max tries variable to zero again... */ + src->wait_to_transfer = 0; + + while (src->wait_to_transfer++ < GMYTHTV_TRANSFER_MAX_WAITS && + (gmyth_livetv_is_recording (src->spawn_livetv) == FALSE)) + g_usleep (500); + + /* IS_RECORDING again, just like the MythTV backend does... */ + gmyth_livetv_is_recording (src->spawn_livetv); + + sleep (9); + + } + + if (ret == FALSE) { +#ifndef GST_DISABLE_GST_DEBUG + if (src->mythtv_msgs_dbg) + GST_INFO_OBJECT (src, + "MythTV FileTransfer request failed when setting up socket connection!"); +#endif + goto begin_req_failed; + } + + GST_INFO_OBJECT (src, + "MythTV FileTransfer filesize = %lld, content_size = %lld!", + src->file_transfer->filesize, src->content_size); + + src->content_size = src->file_transfer->filesize; + + src->do_start = FALSE; + + /* this is used for the buffer cache */ + src->bytes_queue = g_byte_array_sized_new (INTERNAL_BUFFER_SIZE); + src->buffer_remain = 0; + + gst_pad_push_event (GST_BASE_SRC_PAD (GST_BASE_SRC (src)), + gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_TIME, 0, + src->content_size, 0)); + +done: + + if (chain_id_local != NULL) { + g_string_free (chain_id_local, TRUE); + chain_id_local = NULL; + } + + return TRUE; + + /* ERRORS */ +init_failed: + { + if (src->spawn_livetv != NULL) + g_object_unref (src->spawn_livetv); + + GST_ELEMENT_ERROR (src, LIBRARY, INIT, + (NULL), ("Could not initialize MythTV library (%i, %s)", ret, + src->uri_name)); + return FALSE; + } +begin_req_failed: + { + GST_ELEMENT_ERROR (src, LIBRARY, INIT, + (NULL), ("Could not begin request sent to MythTV server (%i, %s)", ret, + src->uri_name)); + return FALSE; + } +change_progchain: + { + GST_ELEMENT_ERROR (src, RESOURCE, READ, + (NULL), ("Seek failed, go to the next program info... (%s)", + src->uri_name)); + + gst_pad_push_event (GST_BASE_SRC_PAD (GST_BASE_SRC (src)), + gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_TIME, 0, -1, 0)); + + /* go to the next program chain */ + src->unique_setup = FALSE; + src->update_prog_chain = TRUE; + + gst_mythtv_src_next_program_chain (src); + + return TRUE; + } +} + +/* create a new socket for connecting to the next program chain */ +static gboolean +gst_mythtv_src_next_program_chain (GstMythtvSrc * src) +{ + GString *chain_id_local = NULL; + + gboolean ret = TRUE; + + if (!src->live_tv) + goto init_failed; + + if (src->unique_setup == FALSE) { + src->unique_setup = TRUE; + } else { + goto done; + } + + GST_PAD_STREAM_LOCK (GST_BASE_SRC_PAD (GST_BASE_SRC (src))); + + if (src->file_transfer) { + g_object_unref (src->file_transfer); + src->file_transfer = NULL; + } + + if (src->uri_name) { + g_free (src->uri_name); + } + + if (src->backend_info == NULL) + src->backend_info = gmyth_backend_info_new_with_uri (src->uri_name); + + if (src->live_tv) { + if (gmyth_livetv_next_program_chain (src->spawn_livetv) == FALSE) { + GST_INFO_OBJECT (src, "[%s]Failed to go to the next program chain!!!", + __FUNCTION__); + ret = FALSE; + goto init_failed; + } + /* set up the uri variable */ + src->uri_name = g_strdup (src->spawn_livetv->proginfo->pathname->str); + chain_id_local = gmyth_tvchain_get_id (src->spawn_livetv->tvchain); + if (chain_id_local != NULL) { + src->live_chain_id = g_strdup (chain_id_local->str); + GST_DEBUG_OBJECT (src, "[%s] Local chain ID = %s.", __FUNCTION__, + src->live_chain_id); + } + src->live_tv_id = src->spawn_livetv->recorder->recorder_num; + GST_LOG_OBJECT (src, "[%s] LiveTV id = %d, URI path = %s.", __FUNCTION__, + src->live_tv_id, src->uri_name); + } + + src->file_transfer = gmyth_file_transfer_new (src->backend_info); + + if (src->file_transfer == NULL) { + goto init_failed; + } + + ret = gmyth_file_transfer_open (src->file_transfer, src->uri_name); + + /* sets the Playback monitor connection */ + + if (src->live_tv == TRUE && ret == TRUE) { + /* loop finished, set the max tries variable to zero again... */ + src->wait_to_transfer = 0; + + g_usleep (200); + + while (src->wait_to_transfer++ < GMYTHTV_TRANSFER_MAX_WAITS && + (gmyth_livetv_is_recording (src->spawn_livetv) == FALSE)) + g_usleep (1000); + } + + /* sets the FileTransfer instance connection (video/audio download) */ + + if (ret == FALSE) { +#ifndef GST_DISABLE_GST_DEBUG + if (src->mythtv_msgs_dbg) + GST_ERROR_OBJECT (src, + "MythTV FileTransfer request failed when setting up socket connection!"); +#endif + goto begin_req_failed; + } + src->content_size_last = src->content_size; + + src->content_size = src->file_transfer->filesize; + if (src->live_tv) { + src->wait_to_transfer = 0; + while (src->wait_to_transfer++ < GMYTHTV_TRANSFER_MAX_WAITS && + src->content_size < GMYTHTV_TRANSFER_MAX_BUFFER) + src->content_size = gst_mythtv_src_get_position (src); + } + + src->read_offset = 0; + + if (src->bytes_queue != NULL) { + g_byte_array_free (src->bytes_queue, TRUE); + } + + src->bytes_queue = g_byte_array_sized_new (INTERNAL_BUFFER_SIZE); + +done: + src->update_prog_chain = FALSE; + + GST_PAD_STREAM_UNLOCK (GST_BASE_SRC_PAD (GST_BASE_SRC (src))); + + return TRUE; + + /* ERRORS */ +init_failed: + { + if (src->spawn_livetv != NULL) + g_object_unref (src->spawn_livetv); + + GST_ELEMENT_ERROR (src, LIBRARY, INIT, + (NULL), ("Could not initialize MythTV library (%i, %s)", ret, + src->uri_name)); + return FALSE; + } +begin_req_failed: + { + GST_ELEMENT_ERROR (src, LIBRARY, INIT, + (NULL), ("Could not begin request sent to MythTV server (%i, %s)", ret, + src->uri_name)); + return FALSE; + } + +} + +static gboolean +gst_mythtv_src_get_size (GstBaseSrc * bsrc, guint64 * size) +{ + GstMythtvSrc *src = GST_MYTHTV_SRC (bsrc); + gboolean ret = TRUE; + + GST_LOG_OBJECT (src, "[%s] Differs from previous content size: %d (max.: %d)", + __FUNCTION__, abs (src->content_size - src->prev_content_size), + GMYTHTV_TRANSFER_MAX_BUFFER); + + if (src->live_tv) { + ret = FALSE; + } else if (src->live_tv && src->enable_timing_position + && (abs (src->content_size - src->bytes_read) < + GMYTHTV_TRANSFER_MAX_BUFFER)) { + + gint64 new_offset = + gmyth_recorder_get_file_position (src->spawn_livetv->recorder); + if (new_offset > 0 && new_offset > src->content_size) { + src->content_size = new_offset; + } else if (new_offset < src->content_size) { + src->update_prog_chain = TRUE; + } + + } + + *size = src->content_size; + GST_LOG_OBJECT (src, "[%s] Content size = %lld", __FUNCTION__, + src->content_size); + + return ret; + +} + +/* close the socket and associated resources + * used both to recover from errors and go to NULL state */ +static gboolean +gst_mythtv_src_stop (GstBaseSrc * bsrc) +{ + GstMythtvSrc *src; + + src = GST_MYTHTV_SRC (bsrc); + + if (src->uri_name) { + g_free (src->uri_name); + src->uri_name = NULL; + } + + if (src->mythtv_caps) { + gst_caps_unref (src->mythtv_caps); + src->mythtv_caps = NULL; + } + + src->eos = FALSE; + + return TRUE; +} + +static gboolean +gst_mythtv_src_handle_event (GstPad * pad, GstEvent * event) +{ + GstMythtvSrc *src = GST_MYTHTV_SRC (GST_PAD_PARENT (pad)); + gint64 cont_size = 0; + gboolean ret = FALSE; + + switch (GST_EVENT_TYPE (event)) { + case GST_EVENT_EOS: + GST_WARNING_OBJECT (src, "[%s] Got EOS event!!!", __FUNCTION__); + + if (src->live_tv) { + cont_size = gst_mythtv_src_get_position (src); + if (cont_size > src->content_size) { + src->content_size = cont_size; + src->eos = FALSE; + } else { + src->eos = TRUE; + gst_element_set_state (GST_ELEMENT (src), GST_STATE_NULL); + gst_element_set_locked_state (GST_ELEMENT (src), FALSE); + } + } + break; + default: + ret = gst_pad_event_default (pad, event); + } + + return ret; +} + +static gboolean +gst_mythtv_src_is_seekable (GstBaseSrc * push_src) +{ + return TRUE; +} + +static gboolean +gst_mythtv_src_handle_query (GstPad * pad, GstQuery * query) +{ + gboolean res = FALSE; + GstMythtvSrc *myth = GST_MYTHTV_SRC (gst_pad_get_parent (pad)); + GstFormat formt; + + switch (GST_QUERY_TYPE (query)) { + case GST_QUERY_POSITION: + { + gint64 pos = -1; + + gst_query_parse_position (query, &formt, &pos); + res = TRUE; + if (formt == GST_FORMAT_BYTES) { + gst_query_set_position (query, formt, pos = myth->read_offset); + GST_DEBUG_OBJECT (myth, "POS %lld (BYTES).", pos); + } else if (formt == GST_FORMAT_TIME) { + GST_DEBUG_OBJECT (myth, "POS %lld (TIME).", pos); + res = gst_pad_query_default (pad, query); + } + break; + } + case GST_QUERY_DURATION: + { +#if 0 + if (myth->duration != 0) { + gint64 total; + gint64 fps; + + fps = nuv->h->i_fpsn / nuv->h->i_fpsd; + total = + gst_util_uint64_scale_int (GST_SECOND, nuv->h->i_video_blocks, fps); + } +#endif + gint64 dur = -1; + + gst_query_parse_duration (query, &formt, &dur); + if (formt == GST_FORMAT_BYTES) { + gst_query_set_duration (query, formt, dur = myth->content_size); + GST_DEBUG_OBJECT (myth, "DURATION %lld (BYTES).", dur); + } else if (formt == GST_FORMAT_TIME) { + GST_DEBUG_OBJECT (myth, "DURATION %lld (TIME).", dur); + gst_query_ref (query); + res = gst_pad_query_default (pad, query); + } + res = TRUE; + break; + } + default: + { + res = gst_pad_query_default (pad, query); + break; + } + } + + gst_object_unref (myth); + + return res; +} + +static GstStateChangeReturn +gst_mythtv_src_change_state (GstElement * element, GstStateChange transition) +{ + GstStateChangeReturn ret = GST_STATE_CHANGE_FAILURE; + GstMythtvSrc *src = GST_MYTHTV_SRC (element); + + switch (transition) { + case GST_STATE_CHANGE_NULL_TO_READY: + break; + case GST_STATE_CHANGE_READY_TO_PAUSED: + GST_INFO_OBJECT (src, "[%s] READY to PAUSED called!", __FUNCTION__); + break; + case GST_STATE_CHANGE_PAUSED_TO_PLAYING: + GST_INFO_OBJECT (src, "[%s] PAUSED to PLAYING called!", __FUNCTION__); + if (src->live_tv) { + if (!gmyth_recorder_send_frontend_ready_command (src->spawn_livetv-> + recorder)) + GST_WARNING_OBJECT (src, + "[%s] Couldn't send the FRONTEND_READY message to the backend!", + __FUNCTION__); + else + GST_DEBUG_OBJECT (src, + "[%s] Message FRONTEND_READY was sent to the backend!", + __FUNCTION__); + } + + break; + default: + break; + } + + ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); + if (ret == GST_STATE_CHANGE_FAILURE) + return ret; + + switch (transition) { + case GST_STATE_CHANGE_READY_TO_NULL: + GST_INFO_OBJECT (src, "[%s] READY to NULL called!", __FUNCTION__); + break; + case GST_STATE_CHANGE_PLAYING_TO_PAUSED: + GST_INFO_OBJECT (src, "[%s] PLAYING to PAUSED called!", __FUNCTION__); + case GST_STATE_CHANGE_PAUSED_TO_READY: + GST_INFO_OBJECT (src, "[%s] PAUSED to READY called!", __FUNCTION__); + if (src->live_tv) { + if (!gmyth_recorder_send_frontend_ready_command (src->spawn_livetv-> + recorder)) + GST_WARNING_OBJECT (src, + "[%s] Couldn't send the FRONTEND_READY message to the backend!", + __FUNCTION__); + else + GST_DEBUG_OBJECT (src, + "[%s] Message FRONTEND_READY was sent to the backend!", + __FUNCTION__); + } + + break; + default: + break; + } + + return ret; +} + +static void +gst_mythtv_src_set_property (GObject * object, guint prop_id, + const GValue * value, GParamSpec * pspec) +{ + GstMythtvSrc *mythtvsrc = GST_MYTHTV_SRC (object); + + GST_OBJECT_LOCK (mythtvsrc); + switch (prop_id) { + case PROP_LOCATION: + { + if (!g_value_get_string (value)) { + GST_WARNING ("location property cannot be NULL"); + goto done; + } + + if (mythtvsrc->uri_name != NULL) { + g_free (mythtvsrc->uri_name); + mythtvsrc->uri_name = NULL; + } + mythtvsrc->uri_name = g_value_dup_string (value); + + break; + } +#ifndef GST_DISABLE_GST_DEBUG + case PROP_GMYTHTV_DBG: + { + mythtvsrc->mythtv_msgs_dbg = g_value_get_boolean (value); + break; + } +#endif + case PROP_GMYTHTV_VERSION: + { + mythtvsrc->mythtv_version = g_value_get_int (value); + break; + } + case PROP_GMYTHTV_LIVEID: + { + mythtvsrc->live_tv_id = g_value_get_int (value); + break; + } + case PROP_GMYTHTV_LIVE: + { + mythtvsrc->live_tv = g_value_get_boolean (value); + break; + } + case PROP_GMYTHTV_ENABLE_TIMING_POSITION: + { + mythtvsrc->enable_timing_position = g_value_get_boolean (value); + break; + } + case PROP_GMYTHTV_LIVE_CHAINID: + { + if (!g_value_get_string (value)) { + GST_WARNING ("MythTV Live chainid property cannot be NULL"); + goto done; + } + + if (mythtvsrc->live_chain_id != NULL) { + g_free (mythtvsrc->live_chain_id); + mythtvsrc->live_chain_id = NULL; + } + mythtvsrc->live_chain_id = g_value_dup_string (value); + break; + } + case PROP_GMYTHTV_CHANNEL_NUM: + { + mythtvsrc->channel_num = g_value_get_int (value); + break; + } + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } + GST_OBJECT_UNLOCK (mythtvsrc); +done: + return; +} + +static void +gst_mythtv_src_get_property (GObject * object, guint prop_id, + GValue * value, GParamSpec * pspec) +{ + GstMythtvSrc *mythtvsrc = GST_MYTHTV_SRC (object); + + GST_OBJECT_LOCK (mythtvsrc); + switch (prop_id) { + case PROP_LOCATION: + { + gchar *str = g_strdup (""); + + if (mythtvsrc->uri_name == NULL) { + g_free (mythtvsrc->uri_name); + mythtvsrc->uri_name = NULL; + } else { + str = g_strdup (mythtvsrc->uri_name); + } + g_value_set_string (value, str); + break; + } +#ifndef GST_DISABLE_GST_DEBUG + case PROP_GMYTHTV_DBG: + g_value_set_boolean (value, mythtvsrc->mythtv_msgs_dbg); + break; +#endif + case PROP_GMYTHTV_VERSION: + { + g_value_set_int (value, mythtvsrc->mythtv_version); + break; + } + case PROP_GMYTHTV_LIVEID: + { + g_value_set_int (value, mythtvsrc->live_tv_id); + break; + } + case PROP_GMYTHTV_LIVE: + g_value_set_boolean (value, mythtvsrc->live_tv); + break; + case PROP_GMYTHTV_ENABLE_TIMING_POSITION: + g_value_set_boolean (value, mythtvsrc->enable_timing_position); + break; + case PROP_GMYTHTV_LIVE_CHAINID: + { + gchar *str = g_strdup (""); + + if (mythtvsrc->live_chain_id == NULL) { + g_free (mythtvsrc->live_chain_id); + mythtvsrc->live_chain_id = NULL; + } else { + str = g_strdup (mythtvsrc->live_chain_id); + } + g_value_set_string (value, str); + break; + } + case PROP_GMYTHTV_CHANNEL_NUM: + { + g_value_set_int (value, mythtvsrc->channel_num); + break; + } + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } + GST_OBJECT_UNLOCK (mythtvsrc); +} + +/* entry point to initialize the plug-in + * initialize the plug-in itself + * register the element factories and pad templates + * register the features + */ +static gboolean +plugin_init (GstPlugin * plugin) +{ + return gst_element_register (plugin, "mythtvsrc", GST_RANK_NONE, + GST_TYPE_MYTHTV_SRC); +} + +/* this is the structure that gst-register looks for + * so keep the name plugin_desc, or you cannot get your plug-in registered */ +GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, + GST_VERSION_MINOR, + "mythtv", + "lib MythTV src", + plugin_init, VERSION, "LGPL", "GStreamer", "http://gstreamer.net/") + + +/*** GSTURIHANDLER INTERFACE *************************************************/ + static guint gst_mythtv_src_uri_get_type (void) +{ + return GST_URI_SRC; +} + +static gchar ** +gst_mythtv_src_uri_get_protocols (void) +{ + static gchar *protocols[] = { "myth", "myths", NULL }; + + return protocols; +} + +static const gchar * +gst_mythtv_src_uri_get_uri (GstURIHandler * handler) +{ + GstMythtvSrc *src = GST_MYTHTV_SRC (handler); + + return src->uri_name; +} + +static gboolean +gst_mythtv_src_uri_set_uri (GstURIHandler * handler, const gchar * uri) +{ + GstMythtvSrc *src = GST_MYTHTV_SRC (handler); + + gchar *protocol; + + protocol = gst_uri_get_protocol (uri); + if ((strcmp (protocol, "myth") != 0) && (strcmp (protocol, "myths") != 0)) { + g_free (protocol); + return FALSE; + } + g_free (protocol); + g_object_set (src, "location", uri, NULL); + + return TRUE; +} + +static void +gst_mythtv_src_uri_handler_init (gpointer g_iface, gpointer iface_data) +{ + GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface; + + iface->get_type = gst_mythtv_src_uri_get_type; + iface->get_protocols = gst_mythtv_src_uri_get_protocols; + iface->get_uri = gst_mythtv_src_uri_get_uri; + iface->set_uri = gst_mythtv_src_uri_set_uri; +} + +void +size_header_handler (void *userdata, const char *value) +{ + GstMythtvSrc *src = GST_MYTHTV_SRC (userdata); + + GST_DEBUG_OBJECT (src, "content size = %lld bytes", src->content_size); +} diff --git a/ext/mythtv/gstmythtvsrc.h b/ext/mythtv/gstmythtvsrc.h new file mode 100644 index 00000000..5765dd1e --- /dev/null +++ b/ext/mythtv/gstmythtvsrc.h @@ -0,0 +1,131 @@ +/* GStreamer + * Copyright (C) <2006> Rosfran Borges <rosfran.borges@indt.org.br> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifndef __GST_MYTHTV_SRC_H__ +#define __GST_MYTHTV_SRC_H__ + +#include <gst/gst.h> +#include <gst/base/gstbasesrc.h> +#include <gst/base/gstpushsrc.h> +#include <stdio.h> + +#include <gmyth/gmyth_socket.h> +#include <gmyth/gmyth_file_transfer.h> +#include <gmyth/gmyth_livetv.h> +#include <gmyth/gmyth_backendinfo.h> + +G_BEGIN_DECLS + +#define GST_TYPE_MYTHTV_SRC \ + (gst_mythtv_src_get_type()) +#define GST_MYTHTV_SRC(obj) \ + (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MYTHTV_SRC,GstMythtvSrc)) +#define GST_MYTHTV_SRC_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MYTHTV_SRC,GstMythtvSrcClass)) +#define GST_IS_MYTHTV_SRC(obj) \ + (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MYTHTV_SRC)) +#define GST_IS_MYTHTV_SRC_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MYTHTV_SRC)) + +typedef struct _GstMythtvSrc GstMythtvSrc; +typedef struct _GstMythtvSrcClass GstMythtvSrcClass; + +typedef enum { + GST_MYTHTV_SRC_FILE_TRANSFER, + GST_MYTHTV_SRC_NEXT_PROGRAM_CHAIN, + GST_MYTHTV_SRC_INVALID_DATA +} GstMythtvState; + +struct _GstMythtvSrc { + GstPushSrc element; + + /* MythFileTransfer */ + GMythFileTransfer *file_transfer; + + GMythLiveTV *spawn_livetv; + + GMythBackendInfo *backend_info; + + GstMythtvState state; + + gchar *uri_name; + gchar *user_agent; + + gchar *live_chain_id; + + gint mythtv_version; + + gint64 content_size; + + gint64 prev_content_size; + + gint64 content_size_last; + + guint64 bytes_read; + + gint64 read_offset; + + gint buffer_remain; + + gboolean eos; + + gboolean do_start; + + gboolean unique_setup; + + gboolean live_tv; + + gboolean enable_timing_position; + + gint live_tv_id; + + gint channel_num; + + guint mode; + + /* MythTV capabilities */ + GstCaps *mythtv_caps; + + GstPad *sinkpad; + + GStaticRecMutex *th_mutex; + + GByteArray *bytes_queue; + +#ifndef GST_DISABLE_GST_DEBUG + /* enable Myth TV debug messages */ + gboolean mythtv_msgs_dbg; +#endif + + gboolean update_prog_chain; + + /* stablish a maximum iteration value to the IS_RECORDING message */ + guint wait_to_transfer; + +}; + +struct _GstMythtvSrcClass { + GstPushSrcClass parent_class; +}; + +GType gst_mythtv_src_get_type (void); + +G_END_DECLS + +#endif /* __GST_MYTHTV_SRC_H__ */ |