├── Kamera.pro
├── Kamera.pro.user
├── LICENSE
├── app_window.cpp
├── app_window.h
├── dummy_sink.cpp
├── dummy_sink.h
├── main.cpp
├── rtsp_callback.cpp
├── rtsp_callback.h
├── rtsp_client.cpp
├── rtsp_client.h
├── rtsp_session.cpp
├── rtsp_session.h
├── stream_state.cpp
└── stream_state.h


/Kamera.pro:
--------------------------------------------------------------------------------
 1 | QT += core gui
 2 | greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
 3 | 
 4 | CONFIG += c++11
 5 | 
 6 | TARGET = Kamera
 7 | CONFIG += console
 8 | CONFIG -= app_bundle
 9 | 
10 | TEMPLATE = app
11 | 
12 | SOURCES += main.cpp \
13 |     dummy_sink.cpp \
14 |     stream_state.cpp \
15 |     app_window.cpp \
16 |     rtsp_client.cpp \
17 |     rtsp_callback.cpp \
18 |     rtsp_session.cpp
19 | 
20 | # The following define makes your compiler emit warnings if you use
21 | # any feature of Qt which as been marked deprecated (the exact warnings
22 | # depend on your compiler). Please consult the documentation of the
23 | # deprecated API in order to know how to port your code away from it.
24 | DEFINES += QT_DEPRECATED_WARNINGS
25 | 
26 | # You can also make your code fail to compile if you use deprecated APIs.
27 | # In order to do so, uncomment the following line.
28 | # You can also select to disable deprecated APIs only up to a certain version of Qt.
29 | #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
30 | INCLUDEPATH += /usr/local/include
31 | INCLUDEPATH += /usr/local/include/liveMedia
32 | INCLUDEPATH += /usr/local/include/groupsock
33 | INCLUDEPATH += /usr/local/include/UsageEnvironment
34 | INCLUDEPATH += /usr/local/include/BasicUsageEnvironment
35 | LIBS += -L/usr/local/lib
36 | LIBS += -lliveMedia -lgroupsock -lBasicUsageEnvironment -lUsageEnvironment
37 | LIBS += -lavcodec -lavformat -lavutil -lavfilter -lavdevice -lswscale -lswresample
38 | LIBS += -liconv -lx264 -lbz2 -lz -lm
39 | LIBS += -framework AudioToolbox -framework CoreMedia -framework AVFoundation -framework VideoToolbox -framework CoreVideo -framework CoreFoundation
40 | LIBS += -framework Security -framework VideoDecodeAcceleration
41 | 
42 | HEADERS += \
43 |     stream_state.h \
44 |     dummy_sink.h \
45 |     app_window.h \
46 |     rtsp_client.h \
47 |     rtsp_callback.h \
48 |     rtsp_session.h
49 | 


--------------------------------------------------------------------------------
/Kamera.pro.user:
--------------------------------------------------------------------------------
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290 |      <value type="int">3</value>
291 |      <value type="int">4</value>
292 |      <value type="int">5</value>
293 |      <value type="int">6</value>
294 |      <value type="int">7</value>
295 |      <value type="int">8</value>
296 |      <value type="int">9</value>
297 |      <value type="int">10</value>
298 |      <value type="int">11</value>
299 |      <value type="int">12</value>
300 |      <value type="int">13</value>
301 |      <value type="int">14</value>
302 |     </valuelist>
303 |     <value type="int" key="PE.EnvironmentAspect.Base">2</value>
304 |     <valuelist type="QVariantList" key="PE.EnvironmentAspect.Changes">
305 |      <value type="QString">DYLD_LIBRARY_PATH=/System/Library/Frameworks/ImageIO.framework/Resources:/Users/hfli/workspace/Qt5.6.2/5.6/clang_64/lib:/usr/local/lib</value>
306 |     </valuelist>
307 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Kamera</value>
308 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
309 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4RunConfiguration:/Workspace/git/Kamera/Kamera.pro</value>
310 |     <value type="bool" key="QmakeProjectManager.QmakeRunConfiguration.UseLibrarySearchPath">true</value>
311 |     <value type="QString" key="Qt4ProjectManager.Qt4RunConfiguration.CommandLineArguments"></value>
312 |     <value type="QString" key="Qt4ProjectManager.Qt4RunConfiguration.ProFile">Kamera.pro</value>
313 |     <value type="bool" key="Qt4ProjectManager.Qt4RunConfiguration.UseDyldImageSuffix">false</value>
314 |     <value type="bool" key="Qt4ProjectManager.Qt4RunConfiguration.UseTerminal">false</value>
315 |     <value type="QString" key="Qt4ProjectManager.Qt4RunConfiguration.UserWorkingDirectory"></value>
316 |     <value type="QString" key="Qt4ProjectManager.Qt4RunConfiguration.UserWorkingDirectory.default">/Workspace/git/build-Kamera-Qt_Desktop-Debug</value>
317 |     <value type="uint" key="RunConfiguration.QmlDebugServerPort">3768</value>
318 |     <value type="bool" key="RunConfiguration.UseCppDebugger">false</value>
319 |     <value type="bool" key="RunConfiguration.UseCppDebuggerAuto">true</value>
320 |     <value type="bool" key="RunConfiguration.UseMultiProcess">false</value>
321 |     <value type="bool" key="RunConfiguration.UseQmlDebugger">false</value>
322 |     <value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
323 |    </valuemap>
324 |    <value type="int" key="ProjectExplorer.Target.RunConfigurationCount">1</value>
325 |   </valuemap>
326 |  </data>
327 |  <data>
328 |   <variable>ProjectExplorer.Project.TargetCount</variable>
329 |   <value type="int">1</value>
330 |  </data>
331 |  <data>
332 |   <variable>ProjectExplorer.Project.Updater.FileVersion</variable>
333 |   <value type="int">18</value>
334 |  </data>
335 |  <data>
336 |   <variable>Version</variable>
337 |   <value type="int">18</value>
338 |  </data>
339 | </qtcreator>
340 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
  1 |                     GNU GENERAL PUBLIC LICENSE
  2 |                        Version 2, June 1991
  3 | 
  4 |  Copyright (C) 1989, 1991 Free Software Foundation, Inc., <http://fsf.org/>
  5 |  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  6 |  Everyone is permitted to copy and distribute verbatim copies
  7 |  of this license document, but changing it is not allowed.
  8 | 
  9 |                             Preamble
 10 | 
 11 |   The licenses for most software are designed to take away your
 12 | freedom to share and change it.  By contrast, the GNU General Public
 13 | License is intended to guarantee your freedom to share and change free
 14 | software--to make sure the software is free for all its users.  This
 15 | General Public License applies to most of the Free Software
 16 | Foundation's software and to any other program whose authors commit to
 17 | using it.  (Some other Free Software Foundation software is covered by
 18 | the GNU Lesser General Public License instead.)  You can apply it to
 19 | your programs, too.
 20 | 
 21 |   When we speak of free software, we are referring to freedom, not
 22 | price.  Our General Public Licenses are designed to make sure that you
 23 | have the freedom to distribute copies of free software (and charge for
 24 | this service if you wish), that you receive source code or can get it
 25 | if you want it, that you can change the software or use pieces of it
 26 | in new free programs; and that you know you can do these things.
 27 | 
 28 |   To protect your rights, we need to make restrictions that forbid
 29 | anyone to deny you these rights or to ask you to surrender the rights.
 30 | These restrictions translate to certain responsibilities for you if you
 31 | distribute copies of the software, or if you modify it.
 32 | 
 33 |   For example, if you distribute copies of such a program, whether
 34 | gratis or for a fee, you must give the recipients all the rights that
 35 | you have.  You must make sure that they, too, receive or can get the
 36 | source code.  And you must show them these terms so they know their
 37 | rights.
 38 | 
 39 |   We protect your rights with two steps: (1) copyright the software, and
 40 | (2) offer you this license which gives you legal permission to copy,
 41 | distribute and/or modify the software.
 42 | 
 43 |   Also, for each author's protection and ours, we want to make certain
 44 | that everyone understands that there is no warranty for this free
 45 | software.  If the software is modified by someone else and passed on, we
 46 | want its recipients to know that what they have is not the original, so
 47 | that any problems introduced by others will not reflect on the original
 48 | authors' reputations.
 49 | 
 50 |   Finally, any free program is threatened constantly by software
 51 | patents.  We wish to avoid the danger that redistributors of a free
 52 | program will individually obtain patent licenses, in effect making the
 53 | program proprietary.  To prevent this, we have made it clear that any
 54 | patent must be licensed for everyone's free use or not licensed at all.
 55 | 
 56 |   The precise terms and conditions for copying, distribution and
 57 | modification follow.
 58 | 
 59 |                     GNU GENERAL PUBLIC LICENSE
 60 |    TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
 61 | 
 62 |   0. This License applies to any program or other work which contains
 63 | a notice placed by the copyright holder saying it may be distributed
 64 | under the terms of this General Public License.  The "Program", below,
 65 | refers to any such program or work, and a "work based on the Program"
 66 | means either the Program or any derivative work under copyright law:
 67 | that is to say, a work containing the Program or a portion of it,
 68 | either verbatim or with modifications and/or translated into another
 69 | language.  (Hereinafter, translation is included without limitation in
 70 | the term "modification".)  Each licensee is addressed as "you".
 71 | 
 72 | Activities other than copying, distribution and modification are not
 73 | covered by this License; they are outside its scope.  The act of
 74 | running the Program is not restricted, and the output from the Program
 75 | is covered only if its contents constitute a work based on the
 76 | Program (independent of having been made by running the Program).
 77 | Whether that is true depends on what the Program does.
 78 | 
 79 |   1. You may copy and distribute verbatim copies of the Program's
 80 | source code as you receive it, in any medium, provided that you
 81 | conspicuously and appropriately publish on each copy an appropriate
 82 | copyright notice and disclaimer of warranty; keep intact all the
 83 | notices that refer to this License and to the absence of any warranty;
 84 | and give any other recipients of the Program a copy of this License
 85 | along with the Program.
 86 | 
 87 | You may charge a fee for the physical act of transferring a copy, and
 88 | you may at your option offer warranty protection in exchange for a fee.
 89 | 
 90 |   2. You may modify your copy or copies of the Program or any portion
 91 | of it, thus forming a work based on the Program, and copy and
 92 | distribute such modifications or work under the terms of Section 1
 93 | above, provided that you also meet all of these conditions:
 94 | 
 95 |     a) You must cause the modified files to carry prominent notices
 96 |     stating that you changed the files and the date of any change.
 97 | 
 98 |     b) You must cause any work that you distribute or publish, that in
 99 |     whole or in part contains or is derived from the Program or any
100 |     part thereof, to be licensed as a whole at no charge to all third
101 |     parties under the terms of this License.
102 | 
103 |     c) If the modified program normally reads commands interactively
104 |     when run, you must cause it, when started running for such
105 |     interactive use in the most ordinary way, to print or display an
106 |     announcement including an appropriate copyright notice and a
107 |     notice that there is no warranty (or else, saying that you provide
108 |     a warranty) and that users may redistribute the program under
109 |     these conditions, and telling the user how to view a copy of this
110 |     License.  (Exception: if the Program itself is interactive but
111 |     does not normally print such an announcement, your work based on
112 |     the Program is not required to print an announcement.)
113 | 
114 | These requirements apply to the modified work as a whole.  If
115 | identifiable sections of that work are not derived from the Program,
116 | and can be reasonably considered independent and separate works in
117 | themselves, then this License, and its terms, do not apply to those
118 | sections when you distribute them as separate works.  But when you
119 | distribute the same sections as part of a whole which is a work based
120 | on the Program, the distribution of the whole must be on the terms of
121 | this License, whose permissions for other licensees extend to the
122 | entire whole, and thus to each and every part regardless of who wrote it.
123 | 
124 | Thus, it is not the intent of this section to claim rights or contest
125 | your rights to work written entirely by you; rather, the intent is to
126 | exercise the right to control the distribution of derivative or
127 | collective works based on the Program.
128 | 
129 | In addition, mere aggregation of another work not based on the Program
130 | with the Program (or with a work based on the Program) on a volume of
131 | a storage or distribution medium does not bring the other work under
132 | the scope of this License.
133 | 
134 |   3. You may copy and distribute the Program (or a work based on it,
135 | under Section 2) in object code or executable form under the terms of
136 | Sections 1 and 2 above provided that you also do one of the following:
137 | 
138 |     a) Accompany it with the complete corresponding machine-readable
139 |     source code, which must be distributed under the terms of Sections
140 |     1 and 2 above on a medium customarily used for software interchange; or,
141 | 
142 |     b) Accompany it with a written offer, valid for at least three
143 |     years, to give any third party, for a charge no more than your
144 |     cost of physically performing source distribution, a complete
145 |     machine-readable copy of the corresponding source code, to be
146 |     distributed under the terms of Sections 1 and 2 above on a medium
147 |     customarily used for software interchange; or,
148 | 
149 |     c) Accompany it with the information you received as to the offer
150 |     to distribute corresponding source code.  (This alternative is
151 |     allowed only for noncommercial distribution and only if you
152 |     received the program in object code or executable form with such
153 |     an offer, in accord with Subsection b above.)
154 | 
155 | The source code for a work means the preferred form of the work for
156 | making modifications to it.  For an executable work, complete source
157 | code means all the source code for all modules it contains, plus any
158 | associated interface definition files, plus the scripts used to
159 | control compilation and installation of the executable.  However, as a
160 | special exception, the source code distributed need not include
161 | anything that is normally distributed (in either source or binary
162 | form) with the major components (compiler, kernel, and so on) of the
163 | operating system on which the executable runs, unless that component
164 | itself accompanies the executable.
165 | 
166 | If distribution of executable or object code is made by offering
167 | access to copy from a designated place, then offering equivalent
168 | access to copy the source code from the same place counts as
169 | distribution of the source code, even though third parties are not
170 | compelled to copy the source along with the object code.
171 | 
172 |   4. You may not copy, modify, sublicense, or distribute the Program
173 | except as expressly provided under this License.  Any attempt
174 | otherwise to copy, modify, sublicense or distribute the Program is
175 | void, and will automatically terminate your rights under this License.
176 | However, parties who have received copies, or rights, from you under
177 | this License will not have their licenses terminated so long as such
178 | parties remain in full compliance.
179 | 
180 |   5. You are not required to accept this License, since you have not
181 | signed it.  However, nothing else grants you permission to modify or
182 | distribute the Program or its derivative works.  These actions are
183 | prohibited by law if you do not accept this License.  Therefore, by
184 | modifying or distributing the Program (or any work based on the
185 | Program), you indicate your acceptance of this License to do so, and
186 | all its terms and conditions for copying, distributing or modifying
187 | the Program or works based on it.
188 | 
189 |   6. Each time you redistribute the Program (or any work based on the
190 | Program), the recipient automatically receives a license from the
191 | original licensor to copy, distribute or modify the Program subject to
192 | these terms and conditions.  You may not impose any further
193 | restrictions on the recipients' exercise of the rights granted herein.
194 | You are not responsible for enforcing compliance by third parties to
195 | this License.
196 | 
197 |   7. If, as a consequence of a court judgment or allegation of patent
198 | infringement or for any other reason (not limited to patent issues),
199 | conditions are imposed on you (whether by court order, agreement or
200 | otherwise) that contradict the conditions of this License, they do not
201 | excuse you from the conditions of this License.  If you cannot
202 | distribute so as to satisfy simultaneously your obligations under this
203 | License and any other pertinent obligations, then as a consequence you
204 | may not distribute the Program at all.  For example, if a patent
205 | license would not permit royalty-free redistribution of the Program by
206 | all those who receive copies directly or indirectly through you, then
207 | the only way you could satisfy both it and this License would be to
208 | refrain entirely from distribution of the Program.
209 | 
210 | If any portion of this section is held invalid or unenforceable under
211 | any particular circumstance, the balance of the section is intended to
212 | apply and the section as a whole is intended to apply in other
213 | circumstances.
214 | 
215 | It is not the purpose of this section to induce you to infringe any
216 | patents or other property right claims or to contest validity of any
217 | such claims; this section has the sole purpose of protecting the
218 | integrity of the free software distribution system, which is
219 | implemented by public license practices.  Many people have made
220 | generous contributions to the wide range of software distributed
221 | through that system in reliance on consistent application of that
222 | system; it is up to the author/donor to decide if he or she is willing
223 | to distribute software through any other system and a licensee cannot
224 | impose that choice.
225 | 
226 | This section is intended to make thoroughly clear what is believed to
227 | be a consequence of the rest of this License.
228 | 
229 |   8. If the distribution and/or use of the Program is restricted in
230 | certain countries either by patents or by copyrighted interfaces, the
231 | original copyright holder who places the Program under this License
232 | may add an explicit geographical distribution limitation excluding
233 | those countries, so that distribution is permitted only in or among
234 | countries not thus excluded.  In such case, this License incorporates
235 | the limitation as if written in the body of this License.
236 | 
237 |   9. The Free Software Foundation may publish revised and/or new versions
238 | of the General Public License from time to time.  Such new versions will
239 | be similar in spirit to the present version, but may differ in detail to
240 | address new problems or concerns.
241 | 
242 | Each version is given a distinguishing version number.  If the Program
243 | specifies a version number of this License which applies to it and "any
244 | later version", you have the option of following the terms and conditions
245 | either of that version or of any later version published by the Free
246 | Software Foundation.  If the Program does not specify a version number of
247 | this License, you may choose any version ever published by the Free Software
248 | Foundation.
249 | 
250 |   10. If you wish to incorporate parts of the Program into other free
251 | programs whose distribution conditions are different, write to the author
252 | to ask for permission.  For software which is copyrighted by the Free
253 | Software Foundation, write to the Free Software Foundation; we sometimes
254 | make exceptions for this.  Our decision will be guided by the two goals
255 | of preserving the free status of all derivatives of our free software and
256 | of promoting the sharing and reuse of software generally.
257 | 
258 |                             NO WARRANTY
259 | 
260 |   11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
261 | FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
262 | OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
263 | PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
264 | OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
265 | MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
266 | TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
267 | PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
268 | REPAIR OR CORRECTION.
269 | 
270 |   12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
271 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
272 | REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
273 | INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
274 | OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
275 | TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
276 | YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
277 | PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
278 | POSSIBILITY OF SUCH DAMAGES.
279 | 
280 |                      END OF TERMS AND CONDITIONS
281 | 
282 |             How to Apply These Terms to Your New Programs
283 | 
284 |   If you develop a new program, and you want it to be of the greatest
285 | possible use to the public, the best way to achieve this is to make it
286 | free software which everyone can redistribute and change under these terms.
287 | 
288 |   To do so, attach the following notices to the program.  It is safest
289 | to attach them to the start of each source file to most effectively
290 | convey the exclusion of warranty; and each file should have at least
291 | the "copyright" line and a pointer to where the full notice is found.
292 | 
293 |     {description}
294 |     Copyright (C) {year}  {fullname}
295 | 
296 |     This program is free software; you can redistribute it and/or modify
297 |     it under the terms of the GNU General Public License as published by
298 |     the Free Software Foundation; either version 2 of the License, or
299 |     (at your option) any later version.
300 | 
301 |     This program is distributed in the hope that it will be useful,
302 |     but WITHOUT ANY WARRANTY; without even the implied warranty of
303 |     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
304 |     GNU General Public License for more details.
305 | 
306 |     You should have received a copy of the GNU General Public License along
307 |     with this program; if not, write to the Free Software Foundation, Inc.,
308 |     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
309 | 
310 | Also add information on how to contact you by electronic and paper mail.
311 | 
312 | If the program is interactive, make it output a short notice like this
313 | when it starts in an interactive mode:
314 | 
315 |     Gnomovision version 69, Copyright (C) year name of author
316 |     Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
317 |     This is free software, and you are welcome to redistribute it
318 |     under certain conditions; type `show c' for details.
319 | 
320 | The hypothetical commands `show w' and `show c' should show the appropriate
321 | parts of the General Public License.  Of course, the commands you use may
322 | be called something other than `show w' and `show c'; they could even be
323 | mouse-clicks or menu items--whatever suits your program.
324 | 
325 | You should also get your employer (if you work as a programmer) or your
326 | school, if any, to sign a "copyright disclaimer" for the program, if
327 | necessary.  Here is a sample; alter the names:
328 | 
329 |   Yoyodyne, Inc., hereby disclaims all copyright interest in the program
330 |   `Gnomovision' (which makes passes at compilers) written by James Hacker.
331 | 
332 |   {signature of Ty Coon}, 1 April 1989
333 |   Ty Coon, President of Vice
334 | 
335 | This General Public License does not permit incorporating your program into
336 | proprietary programs.  If your program is a subroutine library, you may
337 | consider it more useful to permit linking proprietary applications with the
338 | library.  If this is what you want to do, use the GNU Lesser General
339 | Public License instead of this License.
340 | 


--------------------------------------------------------------------------------
/app_window.cpp:
--------------------------------------------------------------------------------
 1 | #include "app_window.h"
 2 | #include <iostream>
 3 | 
 4 | //const char * url = "rtsp://192.168.3.99:37441/h264";
 5 | const char * url = "rtsp://10.209.21.189:8554/txdx.mkv";
 6 | 
 7 | AppWindow::AppWindow(const char* progName, QWidget* parent)
 8 |     : QMainWindow(parent),
 9 |       _progName(progName){
10 |     this->setupUi();
11 |     this->_rtspSession = new RtspSession(1024, this->_progName.c_str(), url, this);
12 |     this->bindEvents();
13 | }
14 | 
15 | void AppWindow::setupUi(){
16 |     QGridLayout *layout = new QGridLayout;
17 | 
18 |     this->_cameraScreen = new QLabel("Video 0", this);
19 |     //this->_cameraScreen->setg
20 |     this->_cameraScreen->setStyleSheet("background:'black';color:'white'");
21 | 
22 |     this->_startCaptureButton = new QPushButton(this);
23 |     this->_startCaptureButton->setText("Start");
24 | 
25 |     this->_stopCaptureButton = new QPushButton(this);
26 |     this->_stopCaptureButton->setText("Stop");
27 | 
28 |     layout->addWidget(this->_startCaptureButton, 0, 0);
29 |     layout->addWidget(this->_stopCaptureButton, 1, 0);
30 |     layout->addWidget(this->_cameraScreen, 2, 0);
31 | 
32 |     QWidget * central = new QWidget(this);
33 | 
34 |     setCentralWidget(central);
35 |     centralWidget()->setLayout(layout);
36 | 
37 |     setWindowTitle("Camera Window");
38 |     setFixedSize(800, 600);
39 | }
40 | 
41 | void AppWindow::bindEvents(){
42 |     connect(this->_startCaptureButton, SIGNAL(clicked()), this, SLOT(onStart()));
43 |     connect(this->_stopCaptureButton, SIGNAL(clicked()), this, SLOT(onStop()));
44 |     connect(this->_rtspSession, SIGNAL(gotFrame(QImage)), this, SLOT(updateFrame(QImage)));
45 | }
46 | 
47 | void AppWindow::onStart(){
48 |     std::cout << "starting..." << std::endl;
49 |     this->_rtspSession->start();
50 | }
51 | 
52 | void AppWindow::onStop(){
53 |     std::cout << "stoping..." << std::endl;
54 |     this->_rtspSession->stop();
55 | }
56 | 
57 | void AppWindow::updateFrame(const QImage &image)
58 | {
59 | 
60 |     QPixmap pixmap = QPixmap::fromImage(image.scaled(this->_cameraScreen->size(), Qt::KeepAspectRatio) );
61 |     this->_cameraScreen->setPixmap(pixmap);
62 | }
63 | 


--------------------------------------------------------------------------------
/app_window.h:
--------------------------------------------------------------------------------
 1 | #ifndef APP_WINDOW_H
 2 | #define APP_WINDOW_H
 3 | 
 4 | #include <QMainWindow>
 5 | #include <QWidget>
 6 | #include <QLabel>
 7 | #include <QPushButton>
 8 | #include <QGridLayout>
 9 | #include <QImage>
10 | 
11 | #include <string>
12 | 
13 | #include "rtsp_session.h"
14 | 
15 | class AppWindow : public QMainWindow
16 | {
17 |     Q_OBJECT
18 | public:
19 |     explicit AppWindow(const char* progName, QWidget* parent = 0);
20 |     virtual ~AppWindow(){};
21 | private slots:
22 |     void onStart();
23 |     void onStop();
24 |     void updateFrame(const QImage& image);
25 | private:
26 |     void setupUi();
27 |     void bindEvents();
28 | private:
29 |     std::string _progName;
30 |     QLabel* _cameraScreen;
31 |     QPushButton* _startCaptureButton;
32 |     QPushButton* _stopCaptureButton;
33 |     RtspSession* _rtspSession;
34 | };
35 | 
36 | 
37 | #endif // APP_WINDOW_H
38 | 


--------------------------------------------------------------------------------
/dummy_sink.cpp:
--------------------------------------------------------------------------------
  1 | #include "dummy_sink.h"
  2 | 
  3 | #include <Qimage>
  4 | #include <QImageWriter>
  5 | #include <iostream>
  6 | 
  7 | // Implementation of "DummySink":
  8 | 
  9 | // Even though we're not going to be doing anything with the incoming data, we still need to receive it.
 10 | // Define the size of the buffer that we'll use:
 11 | #define DUMMY_SINK_RECEIVE_BUFFER_SIZE 100000
 12 | 
 13 | DummySink* DummySink::createNew(RtspSession* session, UsageEnvironment& env, MediaSubsession& subsession, char const* streamId) {
 14 |     return new DummySink(session, env, subsession, streamId);
 15 | }
 16 | 
 17 | DummySink::DummySink(RtspSession* session,
 18 |                      UsageEnvironment& env, MediaSubsession& subsession, char const* streamId)
 19 |     : MediaSink(env),
 20 |       session(session),
 21 |       frameIndex(0),
 22 |       fSubsession(subsession) {
 23 |     fStreamId = strDup(streamId);
 24 |     fReceiveBuffer = new u_int8_t[DUMMY_SINK_RECEIVE_BUFFER_SIZE];
 25 |     fReceiveBufferAV = new u_int8_t[DUMMY_SINK_RECEIVE_BUFFER_SIZE + 4];
 26 | 
 27 |     fReceiveBufferAV[0] = 0;
 28 |     fReceiveBufferAV[1] = 0;
 29 |     fReceiveBufferAV[2] = 0;
 30 |     fReceiveBufferAV[3] = 1;
 31 | 
 32 |     av_init_packet(&avpkt);
 33 |     avpkt.flags |= AV_PKT_FLAG_KEY;
 34 |     avpkt.pts = avpkt.dts = 0;
 35 | 
 36 |     memset(inbuf + INBUF_SIZE, 0, FF_INPUT_BUFFER_PADDING_SIZE);
 37 | 
 38 |     codec = avcodec_find_decoder(AV_CODEC_ID_H264);
 39 |     if (!codec) {
 40 |         envir() << "codec not found!";
 41 |         exit(4);
 42 |     }
 43 | 
 44 |     codecContext = avcodec_alloc_context3(codec);
 45 |     frame = av_frame_alloc();
 46 |     rgbFrame = av_frame_alloc();
 47 |     avpicture_alloc( ( AVPicture *) rgbFrame, AV_PIX_FMT_RGB24, 1920, 1080);
 48 | 
 49 |     if (codec->capabilities & CODEC_CAP_TRUNCATED) {
 50 |         codecContext->flags |= CODEC_FLAG_TRUNCATED; // we do not send complete frames
 51 |     }
 52 | 
 53 |     codecContext->width = 1920;
 54 |     codecContext->height = 1080;
 55 |     codecContext->pix_fmt = AV_PIX_FMT_YUV420P;
 56 | 
 57 |     if (avcodec_open2(codecContext,codec,NULL) < 0) {
 58 |         envir() << "could not open codec";
 59 |         exit(5);
 60 |     }
 61 | 
 62 |     this->swsContext = sws_getContext( codecContext->width, codecContext->height, codecContext->pix_fmt, 1920, 1080,
 63 |                                        AV_PIX_FMT_RGB24, SWS_BICUBIC, NULL, NULL, NULL);
 64 | }
 65 | 
 66 | DummySink::~DummySink() {
 67 |     delete[] fReceiveBuffer;
 68 |     delete [] fReceiveBufferAV;
 69 |     delete[] fStreamId;
 70 | }
 71 | 
 72 | void DummySink::afterGettingFrame(void* clientData, unsigned frameSize, unsigned numTruncatedBytes,
 73 |                                   struct timeval presentationTime, unsigned durationInMicroseconds) {
 74 |     DummySink* sink = (DummySink*)clientData;
 75 |     sink->afterGettingFrame(frameSize, numTruncatedBytes, presentationTime, durationInMicroseconds);
 76 | }
 77 | 
 78 | void DummySink::afterGettingFrame(unsigned frameSize, unsigned numTruncatedBytes,
 79 |                                   struct timeval presentationTime, unsigned /*durationInMicroseconds*/) {
 80 |     // We've just received a frame of data.  (Optionally) print out information about it:
 81 |     if (strcmp(fSubsession.codecName(),"H264") == 0) {
 82 |         avpkt.data = fReceiveBufferAV;
 83 |         avpkt.size = frameSize + 4;
 84 |         memcpy (fReceiveBufferAV + 4, fReceiveBuffer, frameSize);
 85 |         avpkt.data = fReceiveBufferAV;
 86 |         len = avcodec_decode_video2 (codecContext, frame, &got_picture, &avpkt);
 87 |         if (len < 0) {
 88 |             envir() << "Error while decoding frame " << frameIndex << "\n";
 89 |         }
 90 |         if (got_picture) {
 91 |             envir() << "->Picture decoded :" << frameIndex << "\n";
 92 |             sws_scale(this->swsContext, this->frame->data,this->frame->linesize,
 93 |                       0, this->codecContext->height,
 94 |                       this->rgbFrame->data, this->rgbFrame->linesize);
 95 |             QImage *image = new QImage(this->rgbFrame->data[0],
 96 |                     this->codecContext->width,
 97 |                     this->codecContext->height,
 98 |                     QImage::Format_RGB888);
 99 |             QString name = QString("/Users/hfli/Movies/%1.jpg").arg(frameIndex);
100 | 
101 |             emit this->session->gotFrame(*image);
102 |             frameIndex ++;
103 |         }
104 |     }
105 | 
106 |     // Then continue, to request the next frame of data:
107 |     continuePlaying();
108 | }
109 | 
110 | Boolean DummySink::continuePlaying() {
111 |     if (fSource == NULL) return False; // sanity check (should not happen)
112 | 
113 |     // Request the next frame of data from our input source.  "afterGettingFrame()" will get called later, when it arrives:
114 |     fSource->getNextFrame(fReceiveBuffer, DUMMY_SINK_RECEIVE_BUFFER_SIZE,
115 |                           afterGettingFrame, this,
116 |                           onSourceClosure, this);
117 |     return True;
118 | }
119 | 
120 | void DummySink::setSprop(u_int8_t const* prop, unsigned size) {
121 |     uint8_t *buf;
122 |     uint8_t *buf_start;
123 |     buf = (uint8_t *)malloc(1000);
124 |     buf_start = buf + 4;
125 | 
126 |     avpkt.data = buf;
127 |     avpkt.data[0]   = 0;
128 |     avpkt.data[1]   = 0;
129 |     avpkt.data[2]   = 0;
130 |     avpkt.data[3]   = 1;
131 |     memcpy (buf_start, prop, size);
132 |     avpkt.size = size + 4;
133 |     len = avcodec_decode_video2 (codecContext, frame, &got_picture, &avpkt);
134 |     if (len < 0) {
135 |         envir() << "Error while decoding frame" << frame;
136 |         //		exit(6);
137 |     }
138 | 
139 |     envir() << "after setSprop\n";
140 |     //	exit (111);
141 | }
142 | 


--------------------------------------------------------------------------------
/dummy_sink.h:
--------------------------------------------------------------------------------
 1 | #ifndef DUMMY_SINK_H
 2 | #define DUMMY_SINK_H
 3 | 
 4 | #include "rtsp_session.h"
 5 | 
 6 | #include <liveMedia.hh>
 7 | #include <BasicUsageEnvironment.hh>
 8 | 
 9 | extern "C" {
10 | #include <libavcodec/avcodec.h>
11 | #include <libavformat/avformat.h>
12 | #include <libavutil/mathematics.h>
13 | #include <libswscale/swscale.h>
14 | }
15 | 
16 | #define INBUF_SIZE 4096
17 | #define AUDIO_INBUF_SIZE 20480
18 | #define AUDIO_REFILL_THRESH 4096
19 | 
20 | // Define a data sink (a subclass of "MediaSink") to receive the data for each subsession (i.e., each audio or video 'substream').
21 | // In practice, this might be a class (or a chain of classes) that decodes and then renders the incoming audio or video.
22 | // Or it might be a "FileSink", for outputting the received data into a file (as is done by the "openRTSP" application).
23 | // In this example code, however, we define a simple 'dummy' sink that receives incoming data, but does nothing with it.
24 | 
25 | class DummySink: public MediaSink {
26 | public:
27 |     static DummySink* createNew(RtspSession *session,
28 |                                 UsageEnvironment& env,
29 |                                 MediaSubsession& subsession, // identifies the kind of data that's being received
30 |                                 char const* streamId = NULL); // identifies the stream itself (optional)
31 | 
32 | private:
33 |     DummySink(RtspSession *session, UsageEnvironment& env, MediaSubsession& subsession, char const* streamId);
34 |     // called only by "createNew()"
35 |     virtual ~DummySink();
36 | 
37 |     static void afterGettingFrame(void* clientData, unsigned frameSize,
38 |                                   unsigned numTruncatedBytes,
39 |                                   struct timeval presentationTime,
40 |                                   unsigned durationInMicroseconds);
41 |     void afterGettingFrame(unsigned frameSize, unsigned numTruncatedBytes,
42 |                            struct timeval presentationTime, unsigned durationInMicroseconds);
43 |     //void saveFrameToFile()
44 | private:
45 |     // redefined virtual functions:
46 |     virtual Boolean continuePlaying();
47 | 
48 | public:
49 |     void setSprop(u_int8_t const* prop, unsigned size);
50 | private:
51 |     RtspSession* session;
52 | private:
53 |     u_int8_t* fReceiveBuffer;
54 |     u_int8_t* fReceiveBufferAV;
55 |     MediaSubsession& fSubsession;
56 |     char* fStreamId;
57 | private:
58 |     AVCodec *codec;
59 |     AVCodecContext *codecContext;
60 |     int frameIndex;
61 |     int got_picture;
62 |     int len;
63 |     AVFrame *frame;
64 |     AVFrame *rgbFrame;
65 |     SwsContext* swsContext;
66 |     uint8_t inbuf[INBUF_SIZE + FF_INPUT_BUFFER_PADDING_SIZE];
67 |     char buf[1024];
68 |     AVPacket avpkt;
69 | };
70 | 
71 | #endif // DUMMY_SINK_H
72 | 


--------------------------------------------------------------------------------
/main.cpp:
--------------------------------------------------------------------------------
 1 | #include <liveMedia/liveMedia.hh>
 2 | #include <BasicUsageEnvironment/BasicUsageEnvironment.hh>
 3 | 
 4 | #include <QApplication>
 5 | 
 6 | #include "app_window.h"
 7 | 
 8 | #include "rtsp_client.h"
 9 | #include "dummy_sink.h"
10 | #include "stream_state.h"
11 | 
12 | int main(int argc, char** argv) {
13 |     avcodec_register_all();
14 |     av_register_all();
15 |     QApplication app(argc, argv);
16 |     AppWindow win(argv[0]);
17 |     win.show();
18 | 
19 |     return app.exec();
20 | }
21 | 


--------------------------------------------------------------------------------
/rtsp_callback.cpp:
--------------------------------------------------------------------------------
  1 | #include "rtsp_callback.h"
  2 | #include "stream_state.h"
  3 | #include "rtsp_client.h"
  4 | #include "dummy_sink.h"
  5 | 
  6 | #include <iostream>
  7 | 
  8 | // A function that outputs a string that identifies each stream (for debugging output).  Modify this if you wish:
  9 | UsageEnvironment& operator<<(UsageEnvironment& env, const RTSPClient& rtspClient) {
 10 |   return env << "[URL:\"" << rtspClient.url() << "\"]: ";
 11 | }
 12 | 
 13 | // A function that outputs a string that identifies each subsession (for debugging output).  Modify this if you wish:
 14 | UsageEnvironment& operator<<(UsageEnvironment& env, const MediaSubsession& subsession) {
 15 |   return env << subsession.mediumName() << "/" << subsession.codecName();
 16 | }
 17 | 
 18 | void continueAfterDESCRIBE(RTSPClient* rtspClient, int resultCode, char* resultString) {
 19 |     do {
 20 |         UsageEnvironment& env = rtspClient->envir(); // alias
 21 |         StreamClientState& scs = ((CustomRTSPClient*)rtspClient)->getStreamClientState(); // alias
 22 | 
 23 |         if (resultCode != 0) {
 24 |             env << *rtspClient << "Failed to get a SDP description: " << resultString << "\n";
 25 |             delete[] resultString;
 26 |             break;
 27 |         }
 28 | 
 29 |         char* const sdpDescription = resultString;
 30 |         env << *rtspClient << "Got a SDP description:\n" << sdpDescription << "\n";
 31 | 
 32 |         // Create a media session object from this SDP description:
 33 |         scs.session = MediaSession::createNew(env, sdpDescription);
 34 |         delete[] sdpDescription; // because we don't need it anymore
 35 |         if (scs.session == NULL) {
 36 |             env << *rtspClient << "Failed to create a MediaSession object from the SDP description: " << env.getResultMsg() << "\n";
 37 |             break;
 38 |         } else if (!scs.session->hasSubsessions()) {
 39 |             env << *rtspClient << "This session has no media subsessions (i.e., no \"m=\" lines)\n";
 40 |             break;
 41 |         }
 42 | 
 43 |         // Then, create and set up our data source objects for the session.  We do this by iterating over the session's 'subsessions',
 44 |         // calling "MediaSubsession::initiate()", and then sending a RTSP "SETUP" command, on each one.
 45 |         // (Each 'subsession' will have its own data source.)
 46 |         scs.iter = new MediaSubsessionIterator(*scs.session);
 47 |         setupNextSubsession(rtspClient);
 48 |         return;
 49 |     } while (0);
 50 | 
 51 |     // An unrecoverable error occurred with this stream.
 52 |     shutdownStream(rtspClient);
 53 | }
 54 | 
 55 | void continueAfterSETUP(RTSPClient* rtspClient, int resultCode, char* resultString) {
 56 |     do {
 57 |         UsageEnvironment& env = rtspClient->envir(); // alias
 58 |         StreamClientState& streamClientState = ((CustomRTSPClient*)rtspClient)->getStreamClientState(); // alias
 59 | 
 60 |         if (resultCode != 0) {
 61 |             env << *rtspClient << "Failed to set up the \"" << *streamClientState.subsession << "\" subsession: " << resultString << "\n";
 62 |             break;
 63 |         }
 64 | 
 65 |         env << *rtspClient << "Set up the \"" << *streamClientState.subsession << "\" subsession (";
 66 |         if (streamClientState.subsession->rtcpIsMuxed()) {
 67 |             env << "client port " << streamClientState.subsession->clientPortNum();
 68 |         } else {
 69 |             env << "client ports " << streamClientState.subsession->clientPortNum() << "-" << streamClientState.subsession->clientPortNum()+1;
 70 |         }
 71 |         env << ")\n";
 72 | 
 73 |         const char *sprop = streamClientState.subsession->fmtp_spropparametersets();
 74 |         uint8_t const* sps = NULL;
 75 |         unsigned spsSize = 0;
 76 |         uint8_t const* pps = NULL;
 77 |         unsigned ppsSize = 0;
 78 | 
 79 |         if (sprop != NULL) {
 80 |             unsigned numSPropRecords;
 81 |             SPropRecord* sPropRecords = parseSPropParameterSets(sprop, numSPropRecords);
 82 |             for (unsigned i = 0; i < numSPropRecords; ++i) {
 83 |                 if (sPropRecords[i].sPropLength == 0) continue; // bad data
 84 |                 u_int8_t nal_unit_type = (sPropRecords[i].sPropBytes[0])&0x1F;
 85 |                 if (nal_unit_type == 7/*SPS*/) {
 86 |                     sps = sPropRecords[i].sPropBytes;
 87 |                     spsSize = sPropRecords[i].sPropLength;
 88 |                 } else if (nal_unit_type == 8/*PPS*/) {
 89 |                     pps = sPropRecords[i].sPropBytes;
 90 |                     ppsSize = sPropRecords[i].sPropLength;
 91 |                 }
 92 |             }
 93 |         }
 94 | 
 95 |         // Having successfully setup the subsession, create a data sink for it, and call "startPlaying()" on it.
 96 |         // (This will prepare the data sink to receive data; the actual flow of data from the client won't start happening until later,
 97 |         // after we've sent a RTSP "PLAY" command.)
 98 | 
 99 |         streamClientState.subsession->sink = DummySink::createNew(((CustomRTSPClient*)rtspClient)->getSession(), env, *streamClientState.subsession, rtspClient->url());
100 |         // perhaps use your own custom "MediaSink" subclass instead
101 |         if (streamClientState.subsession->sink == NULL) {
102 |             env << *rtspClient << "Failed to create a data sink for the \"" << *streamClientState.subsession
103 |                 << "\" subsession: " << env.getResultMsg() << "\n";
104 |             break;
105 |         }
106 | 
107 |         env << *rtspClient << "Created a data sink for the \"" << *streamClientState.subsession << "\" subsession\n";
108 |         streamClientState.subsession->miscPtr = rtspClient; // a hack to let subsession handler functions get the "RTSPClient" from the subsession
109 | 
110 | 
111 |         if (sps != NULL) {
112 |             ((DummySink *)streamClientState.subsession->sink)->setSprop(sps, spsSize);
113 |         }
114 |         if (pps != NULL) {
115 |             ((DummySink *)streamClientState.subsession->sink)->setSprop(pps, ppsSize);
116 |         }
117 | 
118 |         streamClientState.subsession->sink->startPlaying(*(streamClientState.subsession->readSource()),
119 |                                            subsessionAfterPlaying, streamClientState.subsession);
120 | 
121 |         // Also set a handler to be called if a RTCP "BYE" arrives for this subsession:
122 |         if (streamClientState.subsession->rtcpInstance() != NULL) {
123 |             streamClientState.subsession->rtcpInstance()->setByeHandler(subsessionByeHandler, streamClientState.subsession);
124 |         }
125 | 
126 |     } while (0);
127 |     delete[] resultString;
128 | 
129 |     // Set up the next subsession, if any:
130 |     setupNextSubsession(rtspClient);
131 | }
132 | 
133 | void continueAfterPLAY(RTSPClient* rtspClient, int resultCode, char* resultString) {
134 |     Boolean success = False;
135 | 
136 |     do {
137 |         UsageEnvironment& env = rtspClient->envir(); // alias
138 |         StreamClientState& scs = ((CustomRTSPClient*)rtspClient)->getStreamClientState(); // alias
139 | 
140 |         if (resultCode != 0) {
141 |             env << *rtspClient << "Failed to start playing session: " << resultString << "\n";
142 |             break;
143 |         }
144 | 
145 |         // Set a timer to be handled at the end of the stream's expected duration (if the stream does not already signal its end
146 |         // using a RTCP "BYE").  This is optional.  If, instead, you want to keep the stream active - e.g., so you can later
147 |         // 'seek' back within it and do another RTSP "PLAY" - then you can omit this code.
148 |         // (Alternatively, if you don't want to receive the entire stream, you could set this timer for some shorter value.)
149 |         if (scs.duration > 0) {
150 |             unsigned const delaySlop = 2; // number of seconds extra to delay, after the stream's expected duration.  (This is optional.)
151 |             scs.duration += delaySlop;
152 |             unsigned uSecsToDelay = (unsigned)(scs.duration*1000000);
153 |             scs.streamTimerTask = env.taskScheduler().scheduleDelayedTask(uSecsToDelay, (TaskFunc*)streamTimerHandler, rtspClient);
154 |         }
155 | 
156 |         env << *rtspClient << "Started playing session";
157 |         if (scs.duration > 0) {
158 |             env << " (for up to " << scs.duration << " seconds)";
159 |         }
160 |         env << "...\n";
161 | 
162 |         success = True;
163 |     } while (0);
164 |     delete[] resultString;
165 | 
166 |     if (!success) {
167 |         // An unrecoverable error occurred with this stream.
168 |         shutdownStream(rtspClient);
169 |     }
170 | }
171 | 
172 | // By default, we request that the server stream its data using RTP/UDP.
173 | // If, instead, you want to request that the server stream via RTP-over-TCP, change the following to True:
174 | #define REQUEST_STREAMING_OVER_TCP False
175 | 
176 | void setupNextSubsession(RTSPClient* rtspClient) {
177 |     UsageEnvironment& env = rtspClient->envir(); // alias
178 |     StreamClientState& scs = ((CustomRTSPClient*)rtspClient)->getStreamClientState(); // alias
179 | 
180 |     scs.subsession = scs.iter->next();
181 |     if (scs.subsession != NULL) {
182 |         if (!scs.subsession->initiate()) {
183 |             env << *rtspClient << "Failed to initiate the \"" << *scs.subsession << "\" subsession: " << env.getResultMsg() << "\n";
184 |             setupNextSubsession(rtspClient); // give up on this subsession; go to the next one
185 |         } else {
186 |             env << *rtspClient << "Initiated the \"" << *scs.subsession << "\" subsession (";
187 |             if (scs.subsession->rtcpIsMuxed()) {
188 |                 env << "client port " << scs.subsession->clientPortNum();
189 |             } else {
190 |                 env << "client ports " << scs.subsession->clientPortNum() << "-" << scs.subsession->clientPortNum()+1;
191 |             }
192 |             env << ")\n";
193 | 
194 |             // Continue setting up this subsession, by sending a RTSP "SETUP" command:
195 |             rtspClient->sendSetupCommand(*scs.subsession, continueAfterSETUP, False, REQUEST_STREAMING_OVER_TCP);
196 |         }
197 |         return;
198 |     }
199 | 
200 |     // We've finished setting up all of the subsessions.  Now, send a RTSP "PLAY" command to start the streaming:
201 |     if (scs.session->absStartTime() != NULL) {
202 |         // Special case: The stream is indexed by 'absolute' time, so send an appropriate "PLAY" command:
203 |         rtspClient->sendPlayCommand(*scs.session, continueAfterPLAY, scs.session->absStartTime(), scs.session->absEndTime());
204 |     } else {
205 |         scs.duration = scs.session->playEndTime() - scs.session->playStartTime();
206 |         rtspClient->sendPlayCommand(*scs.session, continueAfterPLAY);
207 |     }
208 | }
209 | 
210 | // Implementation of the other event handlers:
211 | 
212 | void subsessionAfterPlaying(void* clientData) {
213 |     MediaSubsession* subsession = (MediaSubsession*)clientData;
214 |     RTSPClient* rtspClient = (RTSPClient*)(subsession->miscPtr);
215 | 
216 |     // Begin by closing this subsession's stream:
217 |     Medium::close(subsession->sink);
218 |     subsession->sink = NULL;
219 | 
220 |     // Next, check whether *all* subsessions' streams have now been closed:
221 |     MediaSession& session = subsession->parentSession();
222 |     MediaSubsessionIterator iter(session);
223 |     while ((subsession = iter.next()) != NULL) {
224 |         if (subsession->sink != NULL) return; // this subsession is still active
225 |     }
226 | 
227 |     // All subsessions' streams have now been closed, so shutdown the client:
228 |     shutdownStream(rtspClient);
229 | }
230 | 
231 | void subsessionByeHandler(void* clientData) {
232 |     MediaSubsession* subsession = (MediaSubsession*)clientData;
233 |     RTSPClient* rtspClient = (RTSPClient*)subsession->miscPtr;
234 |     UsageEnvironment& env = rtspClient->envir(); // alias
235 | 
236 |     env << *rtspClient << "Received RTCP \"BYE\" on \"" << *subsession << "\" subsession\n";
237 | 
238 |     // Now act as if the subsession had closed:
239 |     subsessionAfterPlaying(subsession);
240 | }
241 | 
242 | void streamTimerHandler(void* clientData) {
243 |     CustomRTSPClient* rtspClient = (CustomRTSPClient*)clientData;
244 |     StreamClientState& scs = rtspClient->getStreamClientState(); // alias
245 | 
246 |     scs.streamTimerTask = NULL;
247 | 
248 |     // Shut down the stream:
249 |     shutdownStream(rtspClient);
250 | }
251 | 
252 | void shutdownStream(RTSPClient* rtspClient){
253 |     UsageEnvironment& env = rtspClient->envir(); // alias
254 |     StreamClientState& scs = ((CustomRTSPClient*)rtspClient)->getStreamClientState(); // alias
255 | 
256 |     // First, check whether any subsessions have still to be closed:
257 |     if (scs.session != NULL) {
258 |         Boolean someSubsessionsWereActive = False;
259 |         MediaSubsessionIterator iter(*scs.session);
260 |         MediaSubsession* subsession;
261 | 
262 |         while ((subsession = iter.next()) != NULL) {
263 |             if (subsession->sink != NULL) {
264 |                 Medium::close(subsession->sink);
265 |                 subsession->sink = NULL;
266 | 
267 |                 if (subsession->rtcpInstance() != NULL) {
268 |                     subsession->rtcpInstance()->setByeHandler(NULL, NULL); // in case the server sends a RTCP "BYE" while handling "TEARDOWN"
269 |                 }
270 | 
271 |                 someSubsessionsWereActive = True;
272 |             }
273 |         }
274 | 
275 |         if (someSubsessionsWereActive) {
276 |             // Send a RTSP "TEARDOWN" command, to tell the server to shutdown the stream.
277 |             // Don't bother handling the response to the "TEARDOWN".
278 |             rtspClient->sendTeardownCommand(*scs.session, NULL);
279 |         }
280 |     }
281 | 
282 |     std::cout << "Closing the stream.\n";
283 |     Medium::close(rtspClient);
284 | }
285 | 


--------------------------------------------------------------------------------
/rtsp_callback.h:
--------------------------------------------------------------------------------
 1 | #ifndef RTSP_CALLBACK_H
 2 | #define RTSP_CALLBACK_H
 3 | 
 4 | #include <liveMedia/liveMedia.hh>
 5 | #include <BasicUsageEnvironment/BasicUsageEnvironment.hh>
 6 | 
 7 | // RTSP 'response handlers':
 8 | void continueAfterDESCRIBE(RTSPClient* rtspClient, int resultCode, char* resultString);
 9 | void continueAfterSETUP(RTSPClient* rtspClient, int resultCode, char* resultString);
10 | void continueAfterPLAY(RTSPClient* rtspClient, int resultCode, char* resultString);
11 | 
12 | void subsessionAfterPlaying(void* clientData); // called when a stream's subsession (e.g., audio or video substream) ends
13 | void subsessionByeHandler(void* clientData); // called when a RTCP "BYE" is received for a subsession
14 | void streamTimerHandler(void* clientData);
15 | 
16 | // Used to iterate through each stream's 'subsessions', setting up each one:
17 | void setupNextSubsession(RTSPClient* rtspClient);
18 | void shutdownStream(RTSPClient* rtspClient);
19 | #endif // RTSP_CALLBACK_H
20 | 


--------------------------------------------------------------------------------
/rtsp_client.cpp:
--------------------------------------------------------------------------------
 1 | #include "rtsp_client.h"
 2 | 
 3 | // Implementation of "ourRTSPClient":
 4 | 
 5 | CustomRTSPClient* CustomRTSPClient::createNew(
 6 |         RtspSession *session,
 7 |         UsageEnvironment& env,
 8 |         char const* rtspURL,
 9 |         int verbosityLevel,
10 |         char const* applicationName,
11 |         portNumBits tunnelOverHTTPPortNum) {
12 |     return new CustomRTSPClient(session, env, rtspURL, verbosityLevel, applicationName, tunnelOverHTTPPortNum);
13 | }
14 | 
15 | CustomRTSPClient::CustomRTSPClient(
16 |         RtspSession *session,
17 |         UsageEnvironment& env,
18 |         char const* rtspURL,
19 |         int verbosityLevel,
20 |         char const* applicationName,
21 |         portNumBits tunnelOverHTTPPortNum)
22 |     : RTSPClient(env,rtspURL, verbosityLevel, applicationName, tunnelOverHTTPPortNum, -1) ,
23 |       session(session){
24 | }
25 | 
26 | CustomRTSPClient::~CustomRTSPClient() {
27 | }
28 | 


--------------------------------------------------------------------------------
/rtsp_client.h:
--------------------------------------------------------------------------------
 1 | #ifndef CAMERA_RTSP_CLIENT_H
 2 | #define CAMERA_RTSP_CLIENT_H
 3 | 
 4 | #include <liveMedia.hh>
 5 | #include <BasicUsageEnvironment.hh>
 6 | 
 7 | #include "stream_state.h"
 8 | #include "rtsp_session.h"
 9 | 
10 | // If you're streaming just a single stream (i.e., just from a single URL, once), then you can define and use just a single
11 | // "StreamClientState" structure, as a global variable in your application.  However, because - in this demo application - we're
12 | // showing how to play multiple streams, concurrently, we can't do that.  Instead, we have to have a separate "StreamClientState"
13 | // structure for each "RTSPClient".  To do this, we subclass "RTSPClient", and add a "StreamClientState" field to the subclass:
14 | 
15 | class CustomRTSPClient: public RTSPClient {
16 | public:
17 |     static CustomRTSPClient* createNew(
18 |             RtspSession *session,
19 |             UsageEnvironment& env,
20 |             char const* rtspURL,
21 |             int verbosityLevel = 0,
22 |             char const* applicationName = NULL,
23 |             portNumBits tunnelOverHTTPPortNum = 0);
24 | 
25 | protected:
26 |     CustomRTSPClient(RtspSession *session,
27 |                      UsageEnvironment& env,
28 |                      char const* rtspURL,
29 |                      int verbosityLevel,
30 |                      char const* applicationName,
31 |                      portNumBits tunnelOverHTTPPortNum);
32 |     // called only by createNew();
33 |     virtual ~CustomRTSPClient();
34 | public:
35 |     StreamClientState& getStreamClientState() { return this->streamClientState; }
36 |     RtspSession* getSession() { return this->session; }
37 | private:
38 |     RtspSession* session;
39 |     StreamClientState streamClientState;
40 | };
41 | 
42 | 
43 | #endif // CAMERA_RTSP_CLIENT_H
44 | 


--------------------------------------------------------------------------------
/rtsp_session.cpp:
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 1 | #include "rtsp_session.h"
 2 | #include "rtsp_client.h"
 3 | #include "rtsp_callback.h"
 4 | 
 5 | #include <iostream>
 6 | 
 7 | #define RTSP_CLIENT_VERBOSITY_LEVEL 1
 8 | 
 9 | RtspSession::RtspSession(int id, const char* progName, const char* url, QObject* parent)
10 |     : _id(id),
11 |       _progName(progName),
12 |       _url(url),
13 |       _rtspClient(NULL),
14 |       _eventLoopWatchVariable(0),
15 |       QThread(parent){
16 | }
17 | 
18 | RtspSession::~RtspSession(){
19 |     stop();
20 |     quit();
21 |     wait();
22 | }
23 | 
24 | void RtspSession::stop(){
25 |     this->_eventLoopWatchVariable = 1;
26 | }
27 | 
28 | void RtspSession::run(){
29 |     this->_eventLoopWatchVariable = 0;
30 | 
31 |     TaskScheduler* scheduler= BasicTaskScheduler::createNew();
32 |     UsageEnvironment* env = BasicUsageEnvironment::createNew(*scheduler);
33 | 
34 |     if(!this->openURL(*env, this->_progName.c_str(), this->_url.c_str())){
35 |         return;
36 |     }
37 |     env->taskScheduler().doEventLoop(&this->_eventLoopWatchVariable);
38 |     std::cout << "Rtsp event finished" << std::endl;
39 |     env->reclaim();
40 |     env = NULL;
41 |     delete scheduler;
42 |     scheduler = NULL;
43 | }
44 | 
45 | bool RtspSession::openURL(UsageEnvironment &env, const char *progName, const char *url){
46 |     this->_rtspClient = CustomRTSPClient::createNew(
47 |                 this,
48 |                 env,
49 |                 url,
50 |                 RTSP_CLIENT_VERBOSITY_LEVEL,
51 |                 progName);
52 |     if (this->_rtspClient == NULL) {
53 |         std::cerr << "Failed to create a RTSP client for URL \""
54 |                   << this->_url << "\": "
55 |                   << env.getResultMsg() << "\n";
56 |         return false;
57 |     }
58 |     this->_rtspClient->sendDescribeCommand(continueAfterDESCRIBE);
59 |     return true;
60 | }
61 | 
62 | 


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/rtsp_session.h:
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 1 | #ifndef RSTP_CLIENT_H
 2 | #define RSTP_CLIENT_H
 3 | 
 4 | #include <liveMedia/liveMedia.hh>
 5 | #include <BasicUsageEnvironment/BasicUsageEnvironment.hh>
 6 | 
 7 | #include <string>
 8 | #include <QThread>
 9 | 
10 | class RtspSession: public QThread{
11 |     Q_OBJECT
12 | public:
13 |     explicit RtspSession(int id, const char* progName, const char* url, QObject *parent =NULL);
14 |     virtual ~RtspSession();
15 | public:
16 |     void stop();
17 | signals:
18 |     void gotFrame(const QImage& image);
19 | protected:
20 |     bool openURL(UsageEnvironment& env, const char* progName, const char * url);
21 |     void run();
22 | private:
23 |     int _id;
24 |     std::string _progName;
25 |     std::string _url;
26 |     RTSPClient* _rtspClient;
27 |     char _eventLoopWatchVariable;
28 | };
29 | 
30 | #endif // RSTP_CLIENT_H
31 | 


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/stream_state.cpp:
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 1 | #include "stream_state.h"
 2 | 
 3 | // Implementation of "StreamClientState":
 4 | 
 5 | StreamClientState::StreamClientState()
 6 |     : iter(NULL), session(NULL), subsession(NULL), streamTimerTask(NULL), duration(0.0) {
 7 | }
 8 | 
 9 | StreamClientState::~StreamClientState() {
10 |     delete iter;
11 |     if (session != NULL) {
12 |         // We also need to delete "session", and unschedule "streamTimerTask" (if set)
13 |         UsageEnvironment& env = session->envir(); // alias
14 | 
15 |         env.taskScheduler().unscheduleDelayedTask(streamTimerTask);
16 |         Medium::close(session);
17 |     }
18 | }
19 | 


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/stream_state.h:
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 1 | #ifndef STREAM_STATE_H
 2 | #define STREAM_STATE_H
 3 | 
 4 | #include <liveMedia.hh>
 5 | #include <BasicUsageEnvironment.hh>
 6 | 
 7 | // Define a class to hold per-stream state that we maintain throughout each stream's lifetime:
 8 | 
 9 | class StreamClientState {
10 | public:
11 |     StreamClientState();
12 |     virtual ~StreamClientState();
13 | 
14 | public:
15 |     MediaSubsessionIterator* iter;
16 |     MediaSession* session;
17 |     MediaSubsession* subsession;
18 |     TaskToken streamTimerTask;
19 |     double duration;
20 | };
21 | 
22 | 
23 | #endif // STREAM_STATE_H
24 | 


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