Recherche avancée

Sur d’autres sites (4435)

• Calling FFMPEG commands from xcode

  2 janvier 2013, par Swati

  i have got some library files of FFMPEG :

  libavcodec.a
  libavfilter.a
  libavutil.a
  libswscale.a
  libavdevice.a
  libavformat.a
  libswresample.a

  Can anybody tell me how to use these libraries if i want to do audio conversion of amr file to mp3 in iphone app.

  The amr file is placed in resource bundle

  I cannot understand how to call the methods of the library for audio format conversion.

  Any help is appreciated :)

• Splitting audio tracks with incorrect length - FFMPEG

  26 mars 2018, par channae

  Version : com.writingminds:FFmpegAndroid:0.3.2

  I have an audio file with length 43 seconds. And I wrote an algorithm to split at each 10 seconds mark where a word ends (For this I used IBM Watson to get ending timestamp). So cropping duration is always around 10 seconds to 11 seconds. Of course except the 5th one. I have printed my commands so that you will understand my use-case better.

  System.out: Split Command: -y -i /storage/emulated/0/AudioClipsForSpeakerRecognition/merge.wav -ss 00:00:00.000 -codec copy -t 00:00:10.010 /storage/emulated/0/AudioClipsForSpeakerRecognition/segment_1.wav
  
  
  
  System.out: Split Command: -y -i /storage/emulated/0/AudioClipsForSpeakerRecognition/merge.wav -ss 00:00:10.010 -codec copy -t 00:00:21.090 /storage/emulated/0/AudioClipsForSpeakerRecognition/segment_2.wav
  
  
  
  System.out: Split Command: -y -i /storage/emulated/0/AudioClipsForSpeakerRecognition/merge.wav -ss 00:00:21.090 -codec copy -t 00:00:30.480 /storage/emulated/0/AudioClipsForSpeakerRecognition/segment_3.wav
  
  
  
  System.out: Split Command: -y -i /storage/emulated/0/AudioClipsForSpeakerRecognition/merge.wav -ss 00:00:30.480 -codec copy -t 00:00:40.120 /storage/emulated/0/AudioClipsForSpeakerRecognition/segment_4.wav
  
  
  
  System.out: Split Command: -y -i /storage/emulated/0/AudioClipsForSpeakerRecognition/merge.wav -ss 00:00:40.120 -codec copy -t 00:00:43.000 /storage/emulated/0/AudioClipsForSpeakerRecognition/segment_5.wav

  However when playing all cropped audio files I noticed segment_1 is about 10 seconds and segment_2 is about 20 seconds etc. Therefore some of the audio parts belong to segment_1 also available in segment 2 etc etc. Why is this happening ?

  Appreciate your response.

• Gujarati text properly not show on output video using FFmpeg Library in Android

  15 mars 2024, par sanjay dangar

  Gujarati text overly on video using FFmpeg Library on Android

  


  below my code in Gujarati text twin word proper does not show

  


  I am Enter this text ="વડાપ્રધાનશ્રી નરેન્દ્રભાઇ મોદી." but output video in proper not show

  


   fun addFrame2VideoEditFun(&#xA;        videoPath: String,&#xA;        fontPath: String,&#xA;        outputPath: String&#xA;    ): Array<string> {&#xA;        val inputs: ArrayList<string> = ArrayList()&#xA;     var textFile = "વડાપ્રધાનશ્રી નરેન્દ્રભાઇ મોદી."&#xA;        inputs.apply {&#xA;            add("-i")&#xA;            add(videoPath)&#xA;            add("-vf")&#xA;            add("drawtext=fontfile=$fontPath:text=$textFile:fontsize=24:fontcolor=white:x=(w-text_w)/2:y=h-line_h")&#xA;            add("-c:a")&#xA;            add("copy")&#xA;            add(outputPath)&#xA;        }&#xA;        return inputs.toArray(arrayOfNulls(inputs.size))&#xA;    }&#xA;</string></string>

  


  my output video in below text show

  


  

  


  Gujarati text properly does not show on output video using FFmpeg Library.