From 8081a5520a441b43a8a7a73f3a90c7aacfaa8e10 Mon Sep 17 00:00:00 2001 From: Timotej Lazar Date: Sun, 24 Feb 2019 21:05:27 +0100 Subject: Move everything one level up --- tasks/vlc_stream_rtp/howtos/en/index.html | 94 ++++++++++++++++++ tasks/vlc_stream_rtp/howtos/images/1.png | Bin 0 -> 8681 bytes tasks/vlc_stream_rtp/howtos/images/playlist.PNG | Bin 0 -> 48064 bytes .../vlc_stream_rtp/howtos/images/stream_finish.PNG | Bin 0 -> 57437 bytes tasks/vlc_stream_rtp/howtos/images/stream_menu.png | Bin 0 -> 80030 bytes tasks/vlc_stream_rtp/howtos/images/stream_open.PNG | Bin 0 -> 62759 bytes .../vlc_stream_rtp/howtos/images/stream_output.PNG | Bin 0 -> 53770 bytes .../howtos/images/stream_transcoding.PNG | Bin 0 -> 88906 bytes tasks/vlc_stream_rtp/howtos/si/index.html | 93 +++++++++++++++++ tasks/vlc_stream_rtp/task.py | 110 +++++++++++++++++++++ 10 files changed, 297 insertions(+) create mode 100644 tasks/vlc_stream_rtp/howtos/en/index.html create mode 100644 tasks/vlc_stream_rtp/howtos/images/1.png create mode 100644 tasks/vlc_stream_rtp/howtos/images/playlist.PNG create mode 100644 tasks/vlc_stream_rtp/howtos/images/stream_finish.PNG create mode 100644 tasks/vlc_stream_rtp/howtos/images/stream_menu.png create mode 100644 tasks/vlc_stream_rtp/howtos/images/stream_open.PNG create mode 100644 tasks/vlc_stream_rtp/howtos/images/stream_output.PNG create mode 100644 tasks/vlc_stream_rtp/howtos/images/stream_transcoding.PNG create mode 100644 tasks/vlc_stream_rtp/howtos/si/index.html create mode 100644 tasks/vlc_stream_rtp/task.py (limited to 'tasks/vlc_stream_rtp') 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 @@ + + + + + + + + + +

Summary

+ +

Set up a virtual machine
Install VLC
Create RTP video stream
Make sure the stream is accessible from the internet

+ +

Instructions

+ +

+
Set up a virtual machine
+
Use disk simpleArbiter. You can get it here.
+
+
Install VLC
+
+ In file /etc/apt/sources.list replace wheezy with + testing or if missing, add rows: +
+
+ + deb http://ftp.at.debian.org/debian wheezy main contrib non-free + deb-src http://ftp.at.debian.org/debian wheezy main contrib non-free + +
+ +
+ Check for updates and install VLC with the following commands: +
+
+ + apt-get update + apt-get install vlc + +
+
+
Create a new stream
+ +
+ Open VLC. In Media menu select Stream. +
+ +
+ Here we choose stream source. This can be a file, a network stream or a capture device.
+ For this excercise, add one or more video file by clicking Add ... Continue with a click on button Stream. +
+ +
+ We must also choose the stream destination. For this excercise, choose RTP/MPEG Transport Stream and click Add. + You can configure multiple destinations simultaneously. +
+
+ Configure destination settings. Enter address and stream name. +
+ +
+ Next, we can set transcoding, encapsulation, audio and video codecs and also subtitles. When you finish, click Save and Next. +
+ +
+ 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. +
+ +
+
Open stream
+
+ We can now play the stream from another device using VLC. +
+ +

+ + + + \ 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 new file mode 100644 index 0000000..903be70 Binary files /dev/null and b/tasks/vlc_stream_rtp/howtos/images/1.png differ diff --git a/tasks/vlc_stream_rtp/howtos/images/playlist.PNG b/tasks/vlc_stream_rtp/howtos/images/playlist.PNG new file mode 100644 index 0000000..b815098 Binary files /dev/null and b/tasks/vlc_stream_rtp/howtos/images/playlist.PNG differ diff --git a/tasks/vlc_stream_rtp/howtos/images/stream_finish.PNG b/tasks/vlc_stream_rtp/howtos/images/stream_finish.PNG new file mode 100644 index 0000000..f429a9b Binary files /dev/null and b/tasks/vlc_stream_rtp/howtos/images/stream_finish.PNG differ diff --git a/tasks/vlc_stream_rtp/howtos/images/stream_menu.png b/tasks/vlc_stream_rtp/howtos/images/stream_menu.png new file mode 100644 index 0000000..01f52c6 Binary files /dev/null and b/tasks/vlc_stream_rtp/howtos/images/stream_menu.png differ diff --git a/tasks/vlc_stream_rtp/howtos/images/stream_open.PNG b/tasks/vlc_stream_rtp/howtos/images/stream_open.PNG new file mode 100644 index 0000000..772ffe8 Binary files /dev/null and b/tasks/vlc_stream_rtp/howtos/images/stream_open.PNG differ diff --git a/tasks/vlc_stream_rtp/howtos/images/stream_output.PNG b/tasks/vlc_stream_rtp/howtos/images/stream_output.PNG new file mode 100644 index 0000000..c3dc2a7 Binary files /dev/null and b/tasks/vlc_stream_rtp/howtos/images/stream_output.PNG differ diff --git a/tasks/vlc_stream_rtp/howtos/images/stream_transcoding.PNG b/tasks/vlc_stream_rtp/howtos/images/stream_transcoding.PNG new file mode 100644 index 0000000..1fbc9f3 Binary files /dev/null and b/tasks/vlc_stream_rtp/howtos/images/stream_transcoding.PNG differ 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 @@ + + + + + + + + + +

Naloga na hitro

+ +

Postavi navidezni računalnik
Naloži VLC
Ustvari RTP video tok
Poskrbi, da bo tok dostopen na internetu

+ +

Navodila

+ +

+
Postavi navidezni računalnik
+
Uporabi disk simpleArbiter. Dobiš ga lahko tu.
+
+
Naloži VLC
+
+ V /etc/apt/sources.list v spodnjih vrsticah zamenjaj wheezy z + testing oziroma dodaj vrstice če niso napisane: +
+
+ + deb http://ftp.at.debian.org/debian wheezy main contrib non-free + deb-src http://ftp.at.debian.org/debian wheezy main contrib non-free + +
+ +
+ Poglej za posodobitve in nato naloži VLC z naslednjimi ukazi: +
+
+ + apt-get update + apt-get install vlc + +
+
+
Ustvari nov tok
+ +
+ Odpri VLC. V meniju Media izberi Stream. +
+ +
+ V oknu "Open Media" izberemo vir toka. Ta je lahko datoteka, že obstoječ omrežni tok ali pa snemalne naprave.
+ Za namen te naloge lahko z klikom na gumb Add ... dodamo eno ali več video datotek. Nadaljujemo z klikom na Stream. +
+ +
+ Določiti moramo tudi destinacijo toka. Za to nalogo izberemo RTP/MPEG Transport Stream in kliknemo Add. + Možno je nastaviti več destinacij hkrati. +
+
+ Nato izpolnimo nastavitve destinacije z naslovom in imenom toka. +
+ +
+ V naslednjem koraku lahko nastavimo kodiranje, enkapsulacijo, avdio in video nastavitve ter podnapise. +
+ +
+ 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. +
+ +
+
Odpri tok
+
+ Na drugem računalniku lahko ustvarjen video tok predvajamo z VLC. +
+ +

+ + + + \ 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': '''\ +

+Postavi navidezni računalnik SimpleArbiter in StudentVLC. Poskrbi, da bosta na istem omrežju, od koder bosta imela dostop tudi do interneta. + +

+Na StudentVLC posodobi datoteko /etc/apt/sources.list, preveri posodobitve in naloži VLC. + +

+Posnemi ali kako drugače ustvari film ter poskrbi, da bo film dostopen na lokalnem omrežju prek RTP z imenom toka {{TOK}} na naslovu {{NASLOV}}, vrata {{PORT}}. Računaj, da bodo film lahko videli tvoji sošolci. Kršenje avtorskih pravic je pri reševanju te naloge strogo prepovedano. +''', + 'en': '''\ +

+Set up a virtual computer called SimpleArbiter using the simpleArbiter disk and +a virtual computer called StudentVLC using the student-VLC disk. Make sure they +are on the same network and that they have access to the Internet. + +

+On StundentVLC, update /etc/apt/sources.list, check the for updates and install VLC. + +

+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 {{TOK}} at the address {{NASLOV}} on port {{PORT}}. 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) -- cgit v1.2.1

Summary

Instructions

Set up a virtual machine

Install VLC

Create a new stream

Open stream

Naloga na hitro

Navodila

Postavi navidezni računalnik

Naloži VLC

Ustvari nov tok

Odpri tok