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• Error : "from : can't read /var/mail/moviepy.editor" How to resolve ?

  23 mai 2017, par batman_rising

  I have a script using which I am editing a video, (extracting 10 clips from a video and then simply concatenating them), I am using moviepy python module as well as ffmpeg

  The script works perfectly when I run it from terminal,

  Now I wanted to run the same script on startup, so I added a path in /etc/rc.local
sudo python /home/startlord/myProject/run.py but the code doesn’t work.

  also, I tried another approach,
  sudo nano /etc/init.d/testRun and created the script executable sudo chmod 755 /etc/init.d/testRun
  but when I wanted to start the execution sudo /etc/init.d/testRun start I was getting this error

  from : can’t read /var/mail/moviepy.editor

  what should I do now ! I am using UP-board, please help, I am not from computer science background.

• Stream n number of files to n number of Streams

  13 août 2020, par Tahir

  I am relatively new to ffmpeg. I have streamed single file to multiple servers and can stream multiple files to one server. Now, I want to create a server where I have video files (say 50) and want to stream them all at a time with some specific addresses. Scenario is like, 50 files streaming at the same time to 50 devices running VLC, all files are identical in size but are actually different.
Like :

  


  input-1
input-2
input-3
..
..
input-n

  


  streams like :

  


  stream-1
stream-2
stream-3
..
..
stream-n

  


  All files are pre-encoded and I don't want to encode them on the go. Just take files from a directory and stream them.

  


• How do I make text scroll in a single line on a video using FFmpeg without using an additional line ?

  9 mars 2024, par sanjay dangar

  How do I make text scroll in a single line on a video using FFmpeg without using an additional line ?

  


  make text scroll in a single line on a video using FFmpeg on Android, but text shows other lines
  
My code

  


       downloadProgressDialog.show()

outputPath =
            Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS).path + "/$fileName.mp4"

        var videoPath = videoPath!!
        var text = bottomTextScroll!!
        var fontPath = fontPath!!
 
        val query = ffmpegQueryExtension.addScrollingTextToVideo(
            videoPath,
            text,
            fontPath,
            outputPath!!

        )
        CallBackOfQuery().callQuery(query, object : FFmpegCallBack {

            override fun success() {
                downloadProgressDialog.clearProgress()
                downloadProgressDialog.dismiss()
                Toast.makeText(
                    this@MainActivity,
                    "Video Download Success",
                    Toast.LENGTH_SHORT
                )
                    .show()
                var notificationText = "Your video has been successfully downloaded."
                showNotification(notificationText)


                var i = Intent(this@MainActivity, VideoShareActivity::class.java)
                i.putExtra("outputPath", outputPath)
                startActivity(i)
                finish()


            }

            override fun cancel() {
                downloadProgressDialog.dismiss()
                Toast.makeText(
                    this@MainActivity,
                    "Video Download Cancel",
                    Toast.LENGTH_SHORT
                )
                    .show()
            }

            override fun failed() {
                downloadProgressDialog.dismiss()
                Toast.makeText(
                    this@MainActivity,
                    "Video Download Fail",
                    Toast.LENGTH_SHORT
                ).show()

                var notificationText = "Your video download Fail."
                showNotification(notificationText)
            }

            //get video download progress
            override fun updateProgress(progress: Int) {
                val duration = getVideoDuration(videoPath!!)  // get video duration

                downloadProgressDialog.updateProgress(progress, duration)
            }

        })


  


  fun addScrollingTextToVideo(&#xA;    videoPath: String,&#xA;    text: String,&#xA;    fontPath: String,&#xA;    outputPath: String&#xA;): Array<string> {&#xA;    val inputs: ArrayList<string> = ArrayList()&#xA;    val scrollSpeed = 5&#xA;    val textSize = 40&#xA;&#xA;    inputs.apply {&#xA;        add("-i")&#xA;        add(videoPath)&#xA;        add("-vf")&#xA;        add("drawtext=fontfile=$fontPath:text=&#x27;$text&#x27;:fontsize=$textSize:fontcolor=white:x=w-(mod($scrollSpeed*n\\,w&#x2B;tw)):y=h-text_h-105")&#xA;        add("-c:a")&#xA;        add("copy")&#xA;        add(outputPath)&#xA;    }&#xA;&#xA;    return inputs.toArray(arrayOfNulls(inputs.size))&#xA;}&#xA;</string></string>

  


  make long text scroll in a single line on a video using FFmpeg on Android, but text shows other lines in

  


  please give me the solution