Newest 'ffmpeg' Questions - Stack Overflow

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• net.ypresto.qtfaststartjava not supporting in maven java

  9 mai 2018, par User

  I am using Qtfaststart to stream mp4 video(place MOOV atom to first) faster. I got maven repository from the link https://javalibs.com/artifact/net.ypresto.qtfaststartjava/qtfaststart .

  
     net.ypresto.qtfaststartjava
     qtfaststart
     0.1.0
  
  

  I am getting Missing artifact net.ypresto.qtfaststartjava:qtfaststart:jar:0.1.0 error in the pom.xml

  This dependency is not supporting, Can anyone help me how to solve this OR any other libraries to place MOOV atom like Qtfaststart.

• FFMPEG Video Recording in Android getting overlay of Green latches

  9 mai 2018, par Appoorva Faldu

  I have used, FFMPEG & OpenCV for integrating the Video Player into Android Application.

  Build Gradle:-

   compile('org.bytedeco:javacv-platform:1.4') {
      exclude group: 'org.bytedeco.javacpp-presets'
  }
  compile group: 'org.bytedeco.javacpp-presets', name: 'opencv', version: '3.4.0-1.4'
  compile group: 'org.bytedeco.javacpp-presets', name: 'ffmpeg', version: '3.4.1-1.4'
  compile files('libs/ffmpeg-android-arm.jar')
  compile files('libs/ffmpeg-android-x86.jar')
  compile files('libs/opencv-android-arm.jar')
  compile files('libs/opencv-android-x86.jar')
  

  I have included 'jniLibs' in the 'main' folder with 'armeabi,amreabi-v7a, x86' folder's.

  I am able to open Camera and record the video.

  The O/P of the video is not coming as expected, audio quality is fine. Please see the Image below.

  The code I used for integration: https://github.com/CrazyOrr/FFmpegRecorder

  Thanks in advance!!

• wowza + live + ffmpeg + hls player, how to create the playlist.m3u8 ?

  9 mai 2018, par Ziv Barber

  I'm trying to setup a wowza live test server and then I can play hls from my mobile app. It do work without any problem for vod. I can play it in my app. I can also see the .m3p8 file if I enter this uri in the browser. I tried to do the same in live mode (my goal is to test some streaming parameters for live streaming). I tried to use ffmpeg to create the live stream:

  ffmpeg -re -i "myInputTestVideo.mp4" -vcodec libx264 -vb 150000 -g 60 -vprofile baseline -level 2.1 -acodec aac -ab 64000 -ar 48000 -ac 2 -vbsf h264_mp4toannexb -strict experimental -f mpegts udp://127.0.0.1:10000

  I created a "source file" and connected it to the "Incoming Streams". I can see in my application's Monitoring / Network tab that it do getting the data from ffmpeg.

  My problem is how to get the playlist.m3p8 file so I can play it from inside my app (hls based)?

  Again, for now I need a way to test playing with the streaming settings and in real live I'll have a real live streaming source.

• Error : No input specified at FfmpegCommand.proto.setStartTime.proto.seekInput ffmpeg

  9 mai 2018, par omkar mestry

  Error: No input specified at FfmpegCommand.proto.setStartTime.proto.seekInput (/Users/omkar/Desktop/whatsappvideo/node_modules/fluent-ffmpeg/lib/options/inputs.js:147:13) at process_video (/Users/omkar/Desktop/whatsappvideo/app.js:25:10) at /Users/omkar/Desktop/whatsappvideo/app.js:15:7 at Layer.handle [as handle_request] (/Users/omkar/Desktop/whatsappvideo/node_modules/express/lib/router/layer.js:95:5) at next (/Users/omkar/Desktop/whatsappvideo/node_modules/express/lib/router/route.js:137:13) at Route.dispatch (/Users/omkar/Desktop/whatsappvideo/node_modules/express/lib/router/route.js:112:3) at Layer.handle [as handle_request] (/Users/omkar/Desktop/whatsappvideo/node_modules/express/lib/router/layer.js:95:5) at /Users/omkar/Desktop/whatsappvideo/node_modules/express/lib/router/index.js:281:22 at Function.process_params (/Users/omkar/Desktop/whatsappvideo/node_modules/express/lib/router/index.js:335:12) at Busboy.next (/Users/omkar/Desktop/whatsappvideo/node_modules/express/lib/router/index.js:275:10)

  Code :- app.js

  var express = require("express"),
      app = express(),
      http = require("http").Server(app).listen(8080),
      upload = require("express-fileupload");
  var video=null;
  app.use(upload())
      console.log("Server Started!");
    app.get("/",function(req,res){
      res.sendFile(__dirname+"/index.html");
    })
  
    app.post("/",function(req,res){
      if(req.files){
        video = req.files;
        process_video(req.files.upfile.data);
        //console.log(req.files.upfile.data);
      }
    })
  
    function process_video(video){
      var ffmpeg = require('fluent-ffmpeg');
  
  
          ffmpeg(video)
          .setStartTime(120)
          .seekInput(0)
          .setDuration(10)
          .output('test.mp4')
          .on('start', function(commandLine) {
                      console.log('start : ' + commandLine);
                  })
          .on('progress', function(progress) {
                      console.log('In Progress !!' + Date());
                  })
          .on('end', function(err) {
              if(!err)
              {
                console.log('conversion Done');
  
  
              }
  
          })
          .on('error', function(err){
              console.log('error: ', +err);
  
          }).run();
    }
  

• ffmpeg output in Audacity

  9 mai 2018, par siamak

  I wanted to split the audio track of a mp4 file each receiving different filter then merge to an output mp4 file. Please note I do not wanted series filter but rather parallel filter and then merge.

  I came up with the following command. ffmpeg -i input.mp4 -filter_complex "[0:a]asplit[audio1][audio2];[audio1]highpass=f=200:p=1:t=h:w=50;[audio2]lowpass=f=700:p=1:t=h:w=200;[audio1][audio2]amerge=inputs=2[out]" -map "[out]" -map 0:v -c:v copy -map 0:s? -c:s copy -ac 2 -y output.mp4

  this output will play on Vlc and mpv. However, when I try to open it in Audacity, I get: Why I do get this? I assume the index[05] is the correct audio output. This raise the question, which audio track is playing when opened in Vlc? How can I create an output which has only one final audio track?