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• how to play blocks one by one with no pops and clicks ?

  5 février 2016, par Stepan Yakovenko

  I have two tags like this :

  <audio src="lub0.mp4"></audio>
  
  <audio src="lub1.mp4"></audio>

  I want to play them one by one, i.e. .play() first one and when it launches onend event, I’ll .play() the second one. Unfortunately this gives me a pop sound in between. Is there any correct crossbrowser way to do this without click ?

  The files themselves are fine, if I glue them to each other in ffmpeg, sound is perfect.

  Thanx.

• How to install flutter_ffmpeg in flutter and create videos videos filter ?

  6 juillet 2023, par Manish Kumar

  When I run my Flutter Application after installing flutter_ffmpeg , its give me error like that.

  


  


  


  FAILURE : Build failed with an exception.

  


  

  • What went wrong :
Execution failed for task ':app:mergeDebugNativeLibs'.

  


  


  


  A failure occurred while executing com.android.build.gradle.internal.tasks.MergeNativeLibsTask$MergeNativeLibsTaskWorkAction
2 files found with path 'lib/arm64-v8a/libavdevice.so' from inputs :
- C :\Users\ms471.gradle\caches\transforms-3\7451ee8c12b5ab807d22ca1bb7285419\transformed\jetified-mobile-ffmpeg-https-4.4\jni\arm64-v8a\libavdevice.so
- C :\Users\ms471.gradle\caches\transforms-3\5693c1c30f39d5c80a43f75ccb4d5110\transformed\jetified-ffmpeg-kit-https-5.1.LTS\jni\arm64-v8a\libavdevice.so
If you are using jniLibs and CMake IMPORTED targets, see
https://developer.android.com/r/tools/jniLibs-vs-imported-targets

  


  


  

  • Try :

  


  


  


  Run with —stacktrace option to get the stack trace.
Run with —info or —debug option to get more log output.
Run with —scan to get full insights.

  


  


  

  • Get more help at https://help.gradle.org

  


  


  BUILD FAILED in 1m 16s
Exception : Gradle task assembleDebug failed with exit code 1

  


  I don't know what is the error, can someone help !!

  


  I am trying to build videos filter or effects in flutter.

  


• Concat 3 videos, setting the output frame-rate based on one of the three videos

  14 février 2023, par 3EK

  I have 3 videos that I would like to concat. An intro, a main video and an outro. All mp4s, all the same spec except the main video is a different frame rate to the other two video assets.

  


  I am trying to use ffprobe to find out the frame rate of the main video and then apply that frame rate to the output file.

  


  This is what I have so far, but it is not working.

  


  #!/bin/bash

mezzfile=mezzfile.mp4
tailtime=20
duration=$(ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 $mezzfile)
framerate=$(ffprobe -v 0 -of compact=p=0 -select_streams 0 \
-show_entries stream=r_frame_rate '$mezzfile')

ffmpeg -hide_banner -y \
  -i sting.mp4 \
  -i $mezzfile \
  -i endboard.mp4 \
  -filter_complex \
    "[0:v]setpts=PTS-STARTPTS,fps=${framerate}[v_intro]; \
     [0:a]asetpts=PTS-STARTPTS,fps=${framerate}[a_intro]; \
     [1:v]setpts=PTS-STARTPTS,split[v_main1][v_main2]; \
     [1:a]asetpts=PTS-STARTPTS[a_main]; \
     [2:v]setpts=PTS-STARTPTS,fps=${framerate}[v_endboard]; \
     [v_main1]select='gt(t,$duration-$tailtime)',scale=w=iw/2:h=ih/2,setpts=PTS-STARTPTS[v_tail]; \
     [v_endboard][v_tail]overlay[v_pip]; \
     [v_main2]select='lte(t,$duration-$tailtime)',setpts=PTS-STARTPTS[v_mid]; \
     [v_intro][v_mid][v_pip]concat=n=3:v=1:a=0[v_out]; \
     [a_intro][a_main]concat=n=2:v=0:a=1[a_out]" \
  -map "[v_out]" \
  -map "[a_out]" \
  output.mp4


  


  Any help would be greatly appreciated !
Cheers !

  


  I have tried the code above. Hoping someone can help me figure out what I'm doing wrong ?