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• I am a newbie in FFmpeg and I am trying to use FFMPEG to play RTSP stream on Android, but it will play slower and slower

  8 mai 2020, par Ajax

  I am a newbie in FFmpeg and I am trying to use FFMPEG to play RTSP stream on Android, but it will play slower and slower. The picture of my player and video source will increase with the time difference. The video are not synchronized. I'm pulling on the local area network。
The longer it is played, the more the picture of the video source will be. The more it cannot automatically return to the real-time picture like MediaCode's hardware decoding.The decoded picture is in slow motion, and it will freeze after a while.。What causes this ? How can i optimize it。
this is my code

  



  2020-5-8/Problem has been solved

  


• dnn_backend_native_layer_conv2d.c : refine code.

  16 septembre 2020, par Xu Jun

  dnn_backend_native_layer_conv2d.c : refine code.
  Move thread area allocate out of thread function into
  
  main thread.
  Signed-off-by : Xu Jun <xujunzz@sjtu.edu.cn>
  

  • [DH] libavfilter/dnn/dnn_backend_native_layer_conv2d.c

• Batch file : FOR loop not working to concatenate mp3 and mp4

  7 janvier 2023, par Ionut Bejinariu

  mp3list-1.txt contain the full patch to the mp3 files that will be concatenated

  


  mp4list-1.txt contain full path to the mp4 files that will be concatenated

  


  then both results mergedmp34.mp3 and mergeMp4.mp4 should be combined together in a final MP4 video file with a random name.

  


  something I do wrong I don't understand what

  


  my guess I do something wrong on FOR loop.

  


  sometimes my .txt files contain full path to a single file mp4 or mp3

  


  if don't have what to combine will concatenate 1 single file ?

  


  set exportdir=
set batsource= the place where this batch file is

1< mp3list-1.txt 2< mp4list-1.txt (
    FOR %%A in ("%batsource%") DO (
        set /p mp3list=" <&1
        set /p mp4list=" <&2
        ffmpeg -f concat -safe 0 -i "!mp3list!" -c copy mergedmp34.mp3
        ffmpeg -f concat -safe 0 -i "!mp4list!" -c copy mergeMp4.mp4
        ffmpeg -i mergedmp34.mp3 -i mergeMp4.mp4 -map 0:v -map 1:a -vcodec copy -c:a aac -b:a 320k "%exportdir%\%RANDOM%.mp4"
        del mergedmp34.mp3
        del mergeMp4.mp4
 
         
    )
)



  


  mp4list-1.txt

  


  F:\.....Videos-115\output-mp4.txt
F:\....\Videos-1150\output-mp4.txt
F:\.....\Videos-1151\output-mp4.txt
F:\......Videos-1152\output-mp4.txt


  


  mp3list-1.txt

  


  F:\......audio-52\output-mp3.txt



  


  and .txt with direct files are like :

  


  file 'F:\....00OH7011.mp3'
file 'F:\....00OH7011.mp3'
file 'F:\....00OH7011.mp3'


  


  and for videos

  


  file 'F:\....00OH7011.mp4'
file 'F:\....00OH7011.mp4'
file 'F:\....00OH7011.mp4'


  


  Later Edit
basically, I want to adapt to my needs the above script based on this working script bellow where I have 4 txt files that are looped.

  


  mkdir ".\Export"
set "sourcedir="  
set "outputdir=Export"

1< codfundal.txt 2< fontalbum.txt 3< album.txt 4< artist.txt (for %%F in (*.jpg *.jpeg) do (
set /P "artist=" <&4 
set /P "fontalbum="<&2  
set /P "album=" <&3
set /P "codfundal=" <&1
   
   
   magick convert -gamma 1 -contrast 30 %%F -fill white -undercolor  "!codfundal!"  -gravity Center -font "!fontalbum!" -pointsize 215   -annotate +0+5  "!album!"  -gravity Center -pointsize 120 -font "Calibri-Bold" -annotate +0+220 "!artist!" -crop 1440x1440+0+0   -quality 92 "%outputdir%\%%F" 




    )
)


  


  album.txt

  


  Circumferential
Genealogy
Iraqi
Fitters


  


  artist.txt

  


  Bhaskar Punk
Costas Fourie
Sonja Bryan
Jin Gullberg



  


  codfundal.txt

  


  
#E70E0E
#ff00ff
#993366
#99cc00
#cc99ff


  


  fontalbum.txt

  


  Bauhaus-93
Agency-FB
Bernard-MT-Condensed
Bodoni-MT