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• ffmpeg combine audio mix code into complex concate script

  15 mai 2020, par sisterbrother

  I got currently 2 different ffmpeg scripts which I want to combine. I do not have good ffmpeg experience and those codes are mostly googel code so please be patient with me

  



  The first code is concating 3 videos :

  



  ffmpeg -y -i "$vid1" -i "$fp" -i "$vid1" -filter_complex \
"[0:v]scale=$cResolution:force_original_aspect_ratio=decrease,pad=$cResolution:(ow-iw)/2:(oh-ih)/2,setsar=1,fps=30,format=yuv420p[v0]; \
 [1:v]scale=$cResolution:force_original_aspect_ratio=decrease,pad=$cResolution:(ow-iw)/2:(oh-ih)/2,setsar=1,fps=30,format=yuv420p[v1]; \
 [2:v]scale=$cResolution:force_original_aspect_ratio=decrease,pad=$cResolution:(ow-iw)/2:(oh-ih)/2,setsar=1,fps=30,format=yuv420p[v2]; \
 [0:a]aformat=sample_rates=48000:channel_layouts=stereo[a0]; \
 [1:a]aformat=sample_rates=48000:channel_layouts=stereo[a1]; \
 [2:a]aformat=sample_rates=48000:channel_layouts=stereo[a2]; \
 [v0][a0][v1][a1][v2][a2]concat=n=3:v=1:a=1[v][a]; \
 [v]drawtext=text='example..':y=h-line_h-$h3:x=w/30*mod(t\,20):enable='gt(mod(t,$dr2),$Introdr_rounded)'[v]; \
 [v]drawtext=text='example..':y=h-line_h-$hcentral:x=w/20*mod(t\,100):enable='gt(mod(t,$dr2),$Introdr_rounded)'[v]; \
 [v]drawtext=text='example..':y=h-line_h-23:x=w/30*mod(t\,20):enable='gt(mod(t,$dr2),$Introdr_rounded)'[v]" \
 -map "[v]" -map "[a]" -c:v libx264 -crf 22 -preset veryfast -c:a aac -movflags +faststart "$fp_dest"


  



  The second code is overlay a background mp3 in endless loop to the created video from above. Its important to know that this code does overlap the audio of the video and does not replace it. In future I will lower the volume of the mp3 files to work as background music

  



  ffmpeg -y -i "$fp_dest" -filter_complex "amovie=$audio:loop=0,asetpts=N/SR/TB[aud];[0:a][aud]amix[a]" -map 0:v -map '[a]' -c:v copy -c:a aac -b:a 256k -shortest ./test.mp4



  



  So currently I got 2 steps which I want to combine into 1 step. Can you please help me to include the second code into the first one without change any logic of the code ?

  


• FFMPEG : How i can transcode MP3 to HLS executing ffmpeg in differents time interval of input video ?

  1er mars 2020, par Ezequiel

  The objetive is take an input mp3 and transcoding to HLS in differents servers. I was think in take differents intervals of time, on this way example :

  Server 1
  ffmpeg -i input.mp4 -c copy -hls_list_size 0 -ss 00:00:00 -t 00:00:10 video.m3u8

  Server 2
  ffmpeg -i input.mp4 -c copy -hls_list_size 0 -ss 00:00:10 -t 00:00:10 video.m3u8

  Server 3
  ffmpeg -i input.mp4 -c copy -hls_list_size 0 -ss 00:00:20 -t 00:00:10 video.m3u8

  This generate this files :

  Server 1 :
  video.m3u8
  video0.ts
  video1.ts

  Server 2 :
  video.m3u8
  video0.ts
  video1.ts

  Server 3 :
  video.m3u8
  video0.ts
  video1.ts

  If i join the 6 .ts files (and modify the first m3u8 to contain all files, and rename of consecutive nameing the TS files) and play the video, VLC crash in joint point (at 10 seconds).

  There are another way to perform this ? Maybe if not cut by time... i dont know...
  Thank you very much.

• Anomalie #4468 : CSS colonne gauche du privé

  4 avril 2020, par nicod _

  Je ne suis pas expert UI/UX, mais pour les icônes, je trouve qu’un symbole simple (une croix ou un plus) est plus lisible quand il est contenu dans une forme, il se distingue mieux du texte.
  Au passage ce crayon n’est pas hyper lisible non plus à première vue, mais j’ai pas mieux.

  Au cas où, ci joint l’icone "del" en bonne résolution.