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Diffstat (limited to 'tasks/vlc_stream_rtp')
| -rw-r--r-- | tasks/vlc_stream_rtp/howtos/en/index.html | 94 | ||||
| -rw-r--r-- | tasks/vlc_stream_rtp/howtos/images/1.png | bin | 0 -> 8681 bytes | |||
| -rw-r--r-- | tasks/vlc_stream_rtp/howtos/images/playlist.PNG | bin | 0 -> 48064 bytes | |||
| -rw-r--r-- | tasks/vlc_stream_rtp/howtos/images/stream_finish.PNG | bin | 0 -> 57437 bytes | |||
| -rw-r--r-- | tasks/vlc_stream_rtp/howtos/images/stream_menu.png | bin | 0 -> 80030 bytes | |||
| -rw-r--r-- | tasks/vlc_stream_rtp/howtos/images/stream_open.PNG | bin | 0 -> 62759 bytes | |||
| -rw-r--r-- | tasks/vlc_stream_rtp/howtos/images/stream_output.PNG | bin | 0 -> 53770 bytes | |||
| -rw-r--r-- | tasks/vlc_stream_rtp/howtos/images/stream_transcoding.PNG | bin | 0 -> 88906 bytes | |||
| -rw-r--r-- | tasks/vlc_stream_rtp/howtos/si/index.html | 93 | ||||
| -rw-r--r-- | tasks/vlc_stream_rtp/task.py | 110 |
10 files changed, 297 insertions, 0 deletions
diff --git a/tasks/vlc_stream_rtp/howtos/en/index.html b/tasks/vlc_stream_rtp/howtos/en/index.html new file mode 100644 index 0000000..c9e2714 --- /dev/null +++ b/tasks/vlc_stream_rtp/howtos/en/index.html @@ -0,0 +1,94 @@ +<html> + +<head> +<meta http-equiv=Content-Type content="text/html; charset=utf-8"> +</head> + + +<body><font face="Georgia, Times New Roman, Times, serif"> + +<h2> Summary </h1> + +<ol> + <li>Set up a virtual machine</li> + <li>Install VLC</li> + <li>Create RTP video stream</li> + <li>Make sure the stream is accessible from the internet</li> +</ol> + + <h2>Instructions</h1> + + <ol> + <li> + <h4>Set up a virtual machine </h3> + <p> Use disk simpleArbiter. You can get it <a href="http://polz.si/media/uploads/kpov/virtualke/">here</a>. </p> + </li> + + <li> + <h4>Install VLC</h3> + <p> + In file <code>/etc/apt/sources.list</code> replace <code>wheezy</code> with + <code>testing</code> or if missing, add rows: + </p> + <p> + <code> + deb http://ftp.at.debian.org/debian wheezy main contrib non-free <br> + deb-src http://ftp.at.debian.org/debian wheezy main contrib non-free + </code> + </p> + <img alt="slika-01" src="../images/1.png" style="width: 640px;" /> + <p> + Check for updates and install VLC with the following commands: + </p> + <p> + <code> + apt-get update <br> + apt-get install vlc + </code> + </p> + </li> + + <li> + <h4>Create a new stream </h3> + + <p> + Open VLC. In Media menu select Stream. + </p> + <img src="../images/stream_menu.png" style="width: 640px;" alt="menu"> + <p> + Here we choose stream source. This can be a file, a network stream or a capture device. <br> + For this excercise, add one or more video file by clicking <i>Add ...</i> Continue with a click on button Stream. + </p> + <img src="../images/playlist.PNG" style="width: 640px;" alt="stream source"> + <p> + We must also choose the stream destination. For this excercise, choose RTP/MPEG Transport Stream and click Add. + You can configure multiple destinations simultaneously. + </p> + <p> + Configure destination settings. Enter address and stream name. + </p> + <img src="../images/stream_output.PNG" style="width: 640px;" alt="stream destination"> + <p> + Next, we can set transcoding, encapsulation, audio and video codecs and also subtitles. When you finish, click Save and Next. + </p> + <img src="../images/stream_transcoding.PNG" style="width: 640px;" alt="stream settings"> + <p> + In the last step, it is important to check option Stream all elementary streams. + In the text area, we can see the string that can be used to run the stream from a command line. + This is useful if you want to run stream from a computer without graphic interface. + </p> + <img src="../images/stream_finish.PNG" style="width: 640px;"> + </li> + + <li> + <h4>Open stream </h3> + <p> + We can now play the stream from another device using VLC. + </p> + <img src="../images/stream_open.PNG" style="width: 640px;" alt="play stream"> + </li> +</ol> + +</body> + +</html>
\ No newline at end of file diff --git a/tasks/vlc_stream_rtp/howtos/images/1.png b/tasks/vlc_stream_rtp/howtos/images/1.png Binary files differnew file mode 100644 index 0000000..903be70 --- /dev/null +++ b/tasks/vlc_stream_rtp/howtos/images/1.png diff --git a/tasks/vlc_stream_rtp/howtos/images/playlist.PNG b/tasks/vlc_stream_rtp/howtos/images/playlist.PNG Binary files differnew file mode 100644 index 0000000..b815098 --- /dev/null +++ b/tasks/vlc_stream_rtp/howtos/images/playlist.PNG diff --git a/tasks/vlc_stream_rtp/howtos/images/stream_finish.PNG b/tasks/vlc_stream_rtp/howtos/images/stream_finish.PNG Binary files differnew file mode 100644 index 0000000..f429a9b --- /dev/null +++ b/tasks/vlc_stream_rtp/howtos/images/stream_finish.PNG diff --git a/tasks/vlc_stream_rtp/howtos/images/stream_menu.png b/tasks/vlc_stream_rtp/howtos/images/stream_menu.png Binary files differnew file mode 100644 index 0000000..01f52c6 --- /dev/null +++ b/tasks/vlc_stream_rtp/howtos/images/stream_menu.png diff --git a/tasks/vlc_stream_rtp/howtos/images/stream_open.PNG b/tasks/vlc_stream_rtp/howtos/images/stream_open.PNG Binary files differnew file mode 100644 index 0000000..772ffe8 --- /dev/null +++ b/tasks/vlc_stream_rtp/howtos/images/stream_open.PNG diff --git a/tasks/vlc_stream_rtp/howtos/images/stream_output.PNG b/tasks/vlc_stream_rtp/howtos/images/stream_output.PNG Binary files differnew file mode 100644 index 0000000..c3dc2a7 --- /dev/null +++ b/tasks/vlc_stream_rtp/howtos/images/stream_output.PNG diff --git a/tasks/vlc_stream_rtp/howtos/images/stream_transcoding.PNG b/tasks/vlc_stream_rtp/howtos/images/stream_transcoding.PNG Binary files differnew file mode 100644 index 0000000..1fbc9f3 --- /dev/null +++ b/tasks/vlc_stream_rtp/howtos/images/stream_transcoding.PNG diff --git a/tasks/vlc_stream_rtp/howtos/si/index.html b/tasks/vlc_stream_rtp/howtos/si/index.html new file mode 100644 index 0000000..c94044b --- /dev/null +++ b/tasks/vlc_stream_rtp/howtos/si/index.html @@ -0,0 +1,93 @@ +<html>
+
+<head>
+<meta http-equiv=Content-Type content="text/html; charset=utf-8">
+</head>
+
+
+<body><font face="Georgia, Times New Roman, Times, serif">
+
+<h2> Naloga na hitro </h1>
+
+<ol>
+ <li>Postavi navidezni računalnik</li>
+ <li>Naloži VLC</li>
+ <li>Ustvari RTP video tok</li>
+ <li>Poskrbi, da bo tok dostopen na internetu</li>
+</ol>
+
+ <h2>Navodila</h1>
+
+ <ol>
+ <li>
+ <h4>Postavi navidezni računalnik </h3>
+ <p> Uporabi disk simpleArbiter. Dobiš ga lahko <a href="http://polz.si/media/uploads/kpov/virtualke/">tu</a>. </p>
+ </li>
+
+ <li>
+ <h4>Naloži VLC </h3>
+ <p>
+ V <code>/etc/apt/sources.list</code> v spodnjih vrsticah zamenjaj <code>wheezy</code> z
+ <code>testing</code> oziroma dodaj vrstice če niso napisane:
+ </p>
+ <p>
+ <code>
+ deb http://ftp.at.debian.org/debian wheezy main contrib non-free <br>
+ deb-src http://ftp.at.debian.org/debian wheezy main contrib non-free
+ </code>
+ </p>
+ <img alt="slika-01" src="../images/1.png" style="width: 640px;" />
+ <p>
+ Poglej za posodobitve in nato naloži VLC z naslednjimi ukazi:
+ </p>
+ <p>
+ <code>
+ apt-get update <br>
+ apt-get install vlc
+ </code>
+ </p>
+ </li>
+
+ <li>
+ <h4>Ustvari nov tok </h3>
+
+ <p>
+ Odpri VLC. V meniju Media izberi Stream.
+ </p>
+ <img src="../images/stream_menu.png" style="width: 640px;" alt="Meni">
+ <p>
+ V oknu "Open Media" izberemo vir toka. Ta je lahko datoteka, že obstoječ omrežni tok ali pa snemalne naprave. <br>
+ Za namen te naloge lahko z klikom na gumb <i>Add ...</i> dodamo eno ali več video datotek. Nadaljujemo z klikom na Stream.
+ </p>
+ <img src="../images/playlist.PNG" style="width: 640px;" alt="Vir toka">
+ <p>
+ Določiti moramo tudi destinacijo toka. Za to nalogo izberemo RTP/MPEG Transport Stream in kliknemo Add.
+ Možno je nastaviti več destinacij hkrati.
+ </p>
+ <p>
+ Nato izpolnimo nastavitve destinacije z naslovom in imenom toka.
+ </p>
+ <img src="../images/stream_output.PNG" style="width: 640px;" alt="Destinacija toka">
+ <p>
+ V naslednjem koraku lahko nastavimo kodiranje, enkapsulacijo, avdio in video nastavitve ter podnapise.
+ </p>
+ <img src="../images/stream_transcoding.PNG" style="width: 640px;" alt="Nastavitve Toka">
+ <p>
+ V zadnjem koraku je pomembno obkljukati možnost Stream all elementary streams.
+ V spodnjem tekstovnem polju dobimo niz, ki ga lahko uporabimo za zagon toka iz ukazne vrstice.
+ </p>
+ <img src="../images/stream_finish.PNG" style="width: 640px;">
+ </li>
+
+ <li>
+ <h4>Odpri tok </h3>
+ <p>
+ Na drugem računalniku lahko ustvarjen video tok predvajamo z VLC.
+ </p>
+ <img src="../images/stream_open.PNG" style="width: 640px;" alt="Predvajanje toka">
+ </li>
+</ol>
+
+</body>
+
+</html>
\ No newline at end of file diff --git a/tasks/vlc_stream_rtp/task.py b/tasks/vlc_stream_rtp/task.py new file mode 100644 index 0000000..427fc0e --- /dev/null +++ b/tasks/vlc_stream_rtp/task.py @@ -0,0 +1,110 @@ +# kpov_util should be imported by add_assignment.py + +# Postavi nek film na Internet tako, da ga bodo lahko ostali videli. +# TODO: finish this + +instructions = { + 'si': '''\ +<p> +Postavi navidezni računalnik <em>SimpleArbiter</em> in <em>StudentVLC</em>. Poskrbi, da bosta na istem omrežju, od koder bosta imela dostop tudi do interneta. + +<p> +Na <em>StudentVLC</em> posodobi datoteko <code>/etc/apt/sources.list</code>, preveri posodobitve in naloži VLC. + +<p> +Posnemi ali kako drugače ustvari film ter poskrbi, da bo film dostopen na lokalnem omrežju prek RTP z imenom toka <code>{{TOK}}</code> na naslovu <code>{{NASLOV}}</code>, vrata <code>{{PORT}}</code>. Računaj, da bodo film lahko videli tvoji sošolci. Kršenje avtorskih pravic je pri reševanju te naloge strogo prepovedano. +''', + 'en': '''\ +<p> +Set up a virtual computer called <em>SimpleArbiter</em> using the simpleArbiter disk and +a virtual computer called <em>StudentVLC</em> using the student-VLC disk. Make sure they +are on the same network and that they have access to the Internet. + +<p> +On StundentVLC, update /etc/apt/sources.list, check the for updates and install VLC. + +<p> +Record or otherwise create a movie and make sure the movie is avaliable on your local network via RTP with the name of the stream <code>{{TOK}}</code> at the address <code>{{NASLOV}}</code> on port <code>{{PORT}}</code>. Take into account that the movie may be seen by your classmates. Copyright infrigement while solving this task is strictly prohibited. +''', +} + +computers = { + 'SimpleArbiter': { + 'disks': [ + { 'name': 'simpleArbiter', + }, + ], + 'network_interfaces': [{'network': 'test-net'}], + 'flavor': 'm1.tiny', + 'config_drive': False + }, + 'StudentVLC': { + 'disks': [ + { 'name': 'student-VLC', + }, + ], + 'network_interfaces': [{'network': 'test-net'}], + 'flavor': 'm1.tiny', + 'config_drive': False + } + +} + +networks = { 'test-net': {'public': True} } + +params_meta = { + 'NASLOV': {'descriptions': {'si': 'RTP multicast IP naslov'}, 'w': False, 'public':True, 'type': 'stream_name', 'generated': True}, + 'PORT': {'descriptions': {'si': 'RTP VRATA'}, 'w': False, 'public':True, 'type': 'port', 'generated': True}, + 'TOK': {'descriptions': {'si': 'Naslov (ime) toka'}, 'w': False, 'public':True, 'type': 'IP', 'generated': True}, +} + +def task(NASLOV, TOK): + import pexpect + results = dict() + results['ps'] = pexpect.run('ps xa') + results['tcpdump_hex'] = pexpect.run('sudo /usr/sbin/tcpdump -x -c 2 dst host 239.255.255.255 and port 9875'.format(NASLOV)) + results['tcpdump'] = pexpect.run('sudo /usr/sbin/tcpdump -c 8 dst host {}'.format(NASLOV)) + return results + +def gen_params(user_id, params_meta): + params = dict() + r = random.Random(user_id) + net = kpov_util.IPv4_net_gen(r, min_hosts = 16, + local=True, multicast=True) + params['NASLOV'] = kpov_util.IPv4_addr_gen(r, net, 1)[0] + params['PORT'] = str(r.randint(5000, 6000)) + params['TOK'] = kpov_util.hostname_gen(r) + return params + +def task_check(results, params): + import re + score = 0 + hints = [] + p1_s = "" + sname = "" + try: + packs = results['tcpdump_hex'].split('> 239.255.255.255.9875: UDP, length') + p1 = packs[1] + p1_l = p1.split('\n') + p1_d = p1_l[1:-1] + p1_s = "" + for i in p1_d: + p1_s = p1_s + "".join([j.strip() for j in i.split(' ')[1:]]) + sname = "".join([hex(ord(i))[2:] for i in params['TOK']]) + except: + hints.append("problem parsing RTP stream capture result") + if p1_s.find(sname) > 2: + score += 5 + else: + hints.append("stream name not found in stream announcement") + s = "IP [^ ]* > {}.{}: UDP, length [0-9]+".format( + re.escape(params['NASLOV']), + params['PORT']) + if re.search(s, results['tcpdump']): + score += 5 + else: + hints.append("RTP stream not detected in " + results['tcpdump']) + return score, hints + +def prepare_disks(templates, task_params, global_params): + write_default_config(templates['simpleArbiter'], global_params) |
