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#3 The Safest Place
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
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15 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
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#2 Typewriter Dance
15 octobre 2011, par
Mis à jour : Février 2013
Langue : English
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#1 The Wires
11 octobre 2011, par
Mis à jour : Février 2013
Langue : English
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ED-ME-5 1-DVD
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Mis à jour : Octobre 2011
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Type : Audio
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Revolution of Open-source and film making towards open film making
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Mis à jour : Juillet 2013
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Sur d’autres sites (5598)
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Shaka Player returns 4001 error - Node.js local web server playing MPEG-DASH
27 mai 2020, par salgarjiI've used Chrome inspection tool to access 'Console' and analyze what is happening. Complete error information :



D {severity: 2, category: 4, code: 4001, data: Array(1), handled: false}
category: 4
code: 4001
data: Array(1)
0: "http://localhost:8080/dash_segmentos/video.mpd"
length: 1
__proto__: Array(0)
handled: false
severity: 2
__proto__: Object



My
Server.jsfile :


var http = require('http');
var fs = require('fs');

console.log(__dirname);

var path='dash_segmentos/video.mpd';
fs.access(path, fs.constants.R_OK | fs.constants.W_OK, (err) => {
 if (err) {
 console.log("%s doesn't exist", path);
 } else {
 console.log('can read/write %s', path);
 }
});

const PORT=8080; 

fs.readFile('./player.html', function (err, html) {

 if (err) throw err; 

 http.createServer(function(request, response) { 
 response.setHeader("Access-Control-Allow-Headers", "authorization, content-type");
 response.setHeader("Access-Control-Allow-Origin", "*");
 response.setHeader("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
 response.writeHeader(200, {"Content-Type": "text/html"}); 
 response.write(html); 
 response.end();
 }).listen(PORT);
});



As you can see I've added CORS (I guess it's correct) and a console.log to see if it's in the proper location. Furthermore, I've verified that file is accessible with
fs.accessand it returnscan read/write dash_segmentos/video.mpdFor this reason, I'm sure I am in the correct path and referencing the right file.


The HTML code (
player.html) provided toServer.js:




 
 <code class="echappe-js"><script type="text/javascript"&#xA;src="https://cdnjs.cloudflare.com/ajax/libs/shaka-player/2.5.11/shaka-player.compiled.js"></script>
 
 

 



<script>&#xA;function initApp() { &#xA;shaka.polyfill.installAll(); &#xA;if (shaka.Player.isBrowserSupported()) { &#xA; initPlayer(); &#xA; } else { &#xA; console.error(&#x27;Browser not supported!&#x27;);&#xA; }}&#xA;&#xA;function initPlayer() { &#xA;var video = document.getElementById( &#x27;video&#x27; );&#xA;var player = new shaka.Player( video );&#xA; window.player = player; &#xA;player.addEventListener(&#x27;error&#x27;, onErrorEvent); &#xA;player.load(path).then(function (){&#xA; console.log(&#x27;Video loaded correctly&#x27;);&#xA; }).catch(onError);&#xA;&#xA;function onErrorEvent(event) {&#xA; onError(event.detail); &#xA; }&#xA;function onError(error) {&#xA; console.error(&#x27;Codigo de error: &#x27;, error.code, &#x27; en &#x27;, error);&#xA; }&#xA;}&#xA;</script>

<script>&#xA;var path=&#x27;dash_segmentos/video.mpd&#x27;;&#xA;//var path=&#x27;https://dash.akamaized.net/dash264/TestCases/2c/qualcomm/1/MultiResMPEG2.mpd&#x27;;&#xA;//the URL above is working! but it won&#x27;t read my local mpd&#xA;&#xA;document.addEventListener(&#x27;DOMContentLoaded&#x27;, initApp);&#xA;&#xA; </script>
 




I've tried changing the URL to an online resource and the player is properly working.



My fluent-ffmpeg command which generates the video is :



var ffmpeg = require('fluent-ffmpeg');

var grabacion = new ffmpeg();

grabacion.addInput('0')
.inputOptions(['-y -nostdin', '-f avfoundation', '-video_size 1280x720', '-framerate 30'])
.outputOptions(['-vcodec libx264', '-keyint_min 0', '-g 100', '-map 0:v', '-b:v 1000k', '-f dash',
 '-use_template 1', '-use_timeline 0', '-init_seg_name video0-$RepresentationID$-$Number$.mp4',
 '-media_seg_name video0-$RepresentationID$-$Number$.mp4','-single_file 0', '-remove_at_exit 0', '-window_size 20', '-seg_duration 4'])
.output('/path/to/files/dash_segmentos/video.mpd')
.run();



The mpd manifest file is :



<?xml version="1.0" encoding="utf-8"?>
<mpd xmlns="urn:mpeg:dash:schema:mpd:2011" profiles="urn:mpeg:dash:profile:isoff-live:2011" type="static" mediapresentationduration="PT26.7S" maxsegmentduration="PT4.0S" minbuffertime="PT13.2S">
 <programinformation>
 </programinformation>
 <servicedescription>
 </servicedescription>
 <period start="PT0.0S">
 <adaptationset contenttype="video" startwithsap="1" segmentalignment="true" bitstreamswitching="true" framerate="30000/1001" maxwidth="1280" maxheight="720" par="16:9">
 <representation mimetype="video/mp4" codecs="avc1.7a001f" bandwidth="1000000" width="1280" height="720" sar="1:1">
 <segmenttemplate timescale="1000000" duration="4000000" initialization="video0-$RepresentationID$-$Number$.mp4" media="video0-$RepresentationID$-$Number$.mp4" startnumber="1">
 </segmenttemplate>
 </representation>
 </adaptationset>
 </period>
</mpd>



Is something about ffmpeg ? Permissions ? Pixel format ? Encoding ? I've tried with other mpd file provided by my Raspberry Pi using video4linux (v4l) and it returns the same error !



I know that's a lot of code, but maybe you find it quicker than me. I guess it's a Shaka Player thing with the XML, but I can't explain how ffmpeg is wrongly creating XML code.



Thank you in advance !!


-
Reddit api only giving video and not its audio
25 mars 2023, par Rudra SharmaI am using Reddit API to play videos on my app but the audio is not playing with the video.


This is my code. I am using chewie package and I have no idea if the problem is in the player or Reddit Api. Also I am new to flutter. The code plays reddit videos on my app on chewie video player.


Future<void> _loadVideos() async {
 try {
 final videoUrls =
 await RedditApi.getVideoUrlsFromSubreddit('IndianDankMemes');

 setState(() {
 _videoUrls.addAll(videoUrls);
 });
 } catch (e) {
 print(e);
 }
 }

 Widget _buildVideosList() {
 return ListView.builder(
 itemCount: _videoUrls.length,
 itemBuilder: (context, index) {
 return Padding(
 padding: const EdgeInsets.all(8.0),
 child: Chewie(
 controller: ChewieController(
 videoPlayerController: VideoPlayerController.network(
 _videoUrls[index],
 ),
 aspectRatio: 9 / 16,
 autoPlay: true,
 looping: true,
 autoInitialize: true,
 ),
 ),
 );
 },
 );
 }
}

class RedditApi {
 static const String BASE_URL = 'https://www.reddit.com';
 static const String CLIENT_ID = 'my client id';
 static const String CLIENT_SECRET = 'my client secret';

 static Future> getVideoUrlsFromSubreddit(
 String subredditName) async {
 final response = await http.get(
 Uri.parse('$BASE_URL/r/$subredditName/top.json?limit=10'),
 headers: {'Authorization': 'Client-ID $CLIENT_ID'});

 if (response.statusCode == 200) {
 final jsonData = jsonDecode(response.body);
 final postsData = jsonData['data']['children'];

 final videoUrls = <string>[];

 for (var postData in postsData) {
 if (postData['data']['is_video']) {
 videoUrls.add(postData['data']['media']['reddit_video']
 ['fallback_url']);
 }
 }

 return videoUrls;
 } else {
 throw Exception("Failed to load videos from subreddit");
 }
 }
}```

If you are suggesting for ffmpeg please give me code as well as I said I am new to flutter. 

I have checked my client id and client secret is correct as well. Also if there is any other package I can add to make the task easy.

</string></void>

-
FFmpeg dosn't listen on RTP port in debian
26 juin 2021, par MSSI compose a command to encode my HLS audio stream to a mp3 stream :


ffmpeg -re -i "http://cdn1.live.irib.ir:1935/channel-live/smil:r-payam/chunklist_b307200_slFa.m3u8" -acodec libmp3lame -f rtp rtp://127.0.0.1:9434/


When I run the command on windows 10 machine FFmpeg start to listen on port 9434 and works perfectly :




But when I run it on my Debian machine it doesn't bind to specified port and also any of bind ports doesn't work :




Running out put :




FFmpeg version info :


ffmpeg version N-57736-ga501d55905-static https://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2021 the FFmpeg developers
built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-libgme --enable-gray --enable-libfribidi --enable-libass --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libxml2 --enable-libxvid --enable-libzimg
libavutil 57. 0.100 / 57. 0.100
libavcodec 59. 1.101 / 59. 1.101
libavformat 59. 3.100 / 59. 3.100
libavdevice 59. 0.100 / 59. 0.100
libavfilter 8. 0.102 / 8. 0.102
libswscale 6. 0.100 / 6. 0.100
libswresample 4. 0.100 / 4. 0.100
libpostproc 56. 0.100 / 56. 0.100


Does any body knows the correct way of stream rtp on debian ?


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