1 /*****************************************************************************
2 * dash.cpp: DASH module
3 *****************************************************************************
4 * Copyright © 2010 - 2011 Klagenfurt University
6 * Created on: Aug 10, 2010
7 * Authors: Christopher Mueller <christopher.mueller@itec.uni-klu.ac.at>
8 * Christian Timmerer <christian.timmerer@itec.uni-klu.ac.at>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU Lesser General Public License as published
12 * by the Free Software Foundation; either version 2.1 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
32 #include <vlc_common.h>
33 #include <vlc_plugin.h>
37 #include "DASHManager.h"
38 #include "xml/DOMParser.h"
39 #include "http/HTTPConnectionManager.h"
40 #include "adaptationlogic/IAdaptationLogic.h"
44 /*****************************************************************************
46 *****************************************************************************/
47 static int Open (vlc_object_t *);
48 static void Close (vlc_object_t *);
51 set_shortname( N_("DASH"))
52 set_description( N_("Dynamic Adaptive Streaming over HTTP") )
53 set_capability( "stream_filter", 19 )
54 set_category( CAT_INPUT )
55 set_subcategory( SUBCAT_INPUT_STREAM_FILTER )
56 set_callbacks( Open, Close )
59 /*****************************************************************************
61 *****************************************************************************/
64 dash::DASHManager *p_dashManager;
65 dash::http::HTTPConnectionManager *p_conManager;
66 dash::xml::Node *p_node;
71 static int Read (stream_t *p_stream, void *p_buffer, unsigned int i_len);
72 static int Peek (stream_t *p_stream, const uint8_t **pp_peek, unsigned int i_peek);
73 static int Control (stream_t *p_stream, int i_query, va_list args);
75 /*****************************************************************************
77 *****************************************************************************/
78 static int Open(vlc_object_t *p_this)
80 stream_t *p_stream = (stream_t*) p_this;
82 dash::xml::DOMParser parser(p_stream->p_source);
87 msg_Dbg(p_stream, "could not parse file");
91 stream_sys_t *p_sys = (stream_sys_t *) malloc(sizeof(stream_sys_t));
93 if (unlikely(p_sys == NULL))
96 dash::http::HTTPConnectionManager *p_conManager =
97 new dash::http::HTTPConnectionManager(p_stream);
98 dash::xml::Node *p_node = parser.getRootNode();
99 dash::DASHManager*p_dashManager =
100 new dash::DASHManager(p_conManager, p_node,
101 dash::logic::IAdaptationLogic::RateBased,
102 parser.getProfile(p_node));
104 p_sys->p_dashManager = p_dashManager;
105 p_sys->p_node = p_node;
106 p_sys->p_conManager = p_conManager;
108 p_sys->isLive = true;
109 p_stream->p_sys = p_sys;
110 p_stream->pf_read = Read;
111 p_stream->pf_peek = Peek;
112 p_stream->pf_control = Control;
114 msg_Dbg(p_this,"DASH filter: open (%s)", p_stream->psz_path);
118 /*****************************************************************************
120 *****************************************************************************/
121 static void Close(vlc_object_t *p_this)
123 stream_t *p_stream = (stream_t*) p_this;
124 stream_sys_t *p_sys = (stream_sys_t *) p_stream->p_sys;
125 dash::DASHManager *p_dashManager = p_sys->p_dashManager;
126 dash::http::HTTPConnectionManager *p_conManager = p_sys->p_conManager;
127 dash::xml::Node *p_node = p_sys->p_node;
129 delete(p_conManager);
130 delete(p_dashManager);
134 /*****************************************************************************
136 *****************************************************************************/
137 static int Read (stream_t *p_stream, void *p_buffer, unsigned int i_len)
139 stream_sys_t *p_sys = (stream_sys_t *) p_stream->p_sys;
140 dash::DASHManager *p_dashManager = p_sys->p_dashManager;
143 i_ret = p_dashManager->read(p_buffer, i_len);
153 msg_Dbg(p_stream, "DASH Read: failed to read (%m)");
159 p_sys->position += i_ret;
163 static int Peek (stream_t *p_stream, const uint8_t **pp_peek, unsigned int i_peek)
165 stream_sys_t *p_sys = (stream_sys_t *) p_stream->p_sys;
166 dash::DASHManager *p_dashManager = p_sys->p_dashManager;
168 return p_dashManager->peek(pp_peek, i_peek);
170 static int Control (stream_t *p_stream, int i_query, va_list args)
172 stream_sys_t *p_sys = p_stream->p_sys;
176 case STREAM_CAN_SEEK:
177 case STREAM_CAN_FASTSEEK:
178 /*TODO Support Seek */
179 *(va_arg (args, bool *)) = SEEK;
181 case STREAM_GET_POSITION:
182 *(va_arg (args, uint64_t *)) = p_sys->position;
184 case STREAM_SET_POSITION:
186 case STREAM_GET_SIZE:
188 *(va_arg (args, uint64_t *)) = 0;