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• How to add watermark to the video part of this huge ffmpeg command that adds intro and outro with crossfade ?

  3 juillet 2017, par Jeflopo

  I wrote a command that crossfade merge an intro, an outro, with a video :

  

  ffmpeg -i intro.mp4 -i video.mp4 -i outro.mp4 -filter_complex "
  
  [0:v]trim=start=0:end=9,setpts=PTS-STARTPTS,scale=480x360,setsar=sar=16/9[intro]; 
  
  [0:v]trim=start=9:end=10,setpts=PTS-STARTPTS,scale=480x360,setsar=sar=16/9[firstfadeoutclip]; 
  
  [1:v]trim=start=0:end=1,setpts=PTS-STARTPTS,scale=480x360,setsar=sar=16/9[firstfadeinclip]; 
  
  [1:v]trim=start=1:end=24,setpts=PTS-STARTPTS,scale=480x360,setsar=sar=16/9[video]; 
  
  [1:v]trim=start=24:end=25,setpts=PTS-STARTPTS,scale=480x360,setsar=sar=16/9[secondfadeoutclip]; 
  
  [2:v]trim=start=0:end=1,setpts=PTS-STARTPTS,scale=480x360,setsar=sar=16/9[secondfadeinclip]; 
  
  [2:v]trim=start=1:end=10,setpts=PTS-STARTPTS,scale=480x360,setsar=sar=16/9[outro]; 
  
  [firstfadeoutclip]format=pix_fmts=yuva420p, fade=t=out:st=0:d=1:alpha=1[firstfadeoutalpha]; 
  
  [firstfadeinclip]format=pix_fmts=yuva420p, fade=t=in:st=0:d=1:alpha=1[firstfadeinalpha]; 
  
  [secondfadeoutclip]format=pix_fmts=yuva420p, fade=t=in:st=0:d=1:alpha=1[secondfadeoutalpha]; 
  
  [secondfadeinclip]format=pix_fmts=yuva420p, fade=t=in:st=0:d=1:alpha=1[secondfadeinalpha]; 
  
  [firstfadeoutalpha]fifo[firstfadeoutfifo]; 
  
  [firstfadeinalpha]fifo[firstfadeinfifo]; 
  
  [secondfadeoutalpha]fifo[secondfadeoutfifo]; 
  
  [secondfadeinalpha]fifo[secondfadeoinfifo]; 
  
  [firstfadeoutfifo][firstfadeinfifo]overlay[firstcrossfade]; 
  
  [secondfadeoutfifo][secondfadeoinfifo]overlay[secondcrossfade]; 
  
  [intro][firstcrossfade][video][secondcrossfade][outro]concat=n=5[output]; 
  
  [0:a][1:a] acrossfade=d=1 [audio]" 
  
  -vcodec libx264 -map "[output]" -map "[audio]" "output.mp4"

  This huge command works fine.

  But now what I want to do is to add a watermark to the video part :

  [1:v]trim=start=1:end=24,setpts=PTS-STARTPTS,scale=480x360,setsar=sar=16/9[video];

  And I want to do it by merging this command (watermark) into that one above :

  ffmpeg -i "1080p.mp4" -filter_complex "
  
  movie=logo-wm.png[watermark];
  
  [watermark][0:V]scale2ref=(1917*iw/1920)/3.5:(322*iw/1920)/3.5[wm][v]; 
  
  [v][logo]overlay=main_w-overlay_w-20:20" "output.mp4"

  The whole (1917*iw/1920)/3.5:(322*iw/1920)/3.5 scales the watermark proportionally using the scale2ref= filter. The 1917 is the width of my watermark image, and 322 is the height

  It is overlayed in the top right corner with main_w-overlay_w-20:20

  But I can’t make it work I tried to add it by copying the parameters to the filter of [1:v] input. And by adding another input for the watermark that if I’m right it would be [3:v] instead of using the movie= filter. But I can’t.

  I know that I could do it in two steps, but I would like to do it at once, in just one command.

  May anyone help me to merge them ? Thank you in advance !

• ffmpeg loop sound in part of video

  22 juin 2017, par djib

  I’m trying to concatenate a few inputs, and loop a sound during the time of one input.
  My inputs are :

  • intro.mp4
  • jpg suite in "pics" folder -> pics/%04d.jpg
  • loop.mp3
  • outro.mp4

  What i want to achive :

  

  What i have so far :

  ffmpeg -y -i intro.mp4 -r 25 -i "pics/%04d.jpg" -i outro.mp4 -i loop.mp3 -filter_complex
  
  "[0:v:0] [0:a:0] [1:v:0] [3:a:0] [2:v:0] [2:a:0] concat=n=3:v=1:a=1 [v] [a]" -map "[v]"
  
  -map "[a]" -c:v libx264 -pix_fmt yuv420p -profile:v baseline -level 3.0 -crf 20 -r 25
  
  -movflags +faststart -c:a aac -b:a 192k output.mp4

  But that does not loop "loop.wav". I’v tried "-loop 1" before "-i loop.mp3" but that gives me this error : "Option loop not found."

  ffmpeg version : 20170620-ae6f6d4-win64-static

• aac : Split function to parse ADTS header data into public and private part

  26 avril 2017, par Diego Biurrun

  aac : Split function to parse ADTS header data into public and private part
  This makes the currently semi-public avpriv_aac_parse_header() function
  
  private to libavcodec and adds a proper public API function to return
  
  the parts of the ADTS header required in libavformat.
  

  • [DBH] configure
  • [DBH] doc/developer.texi
  • [DBH] libavcodec/Makefile
  • [DBH] libavcodec/aac_adtstoasc_bsf.c
  • [DBH] libavcodec/aac_parser.c
  • [DBH] libavcodec/aacdec.c
  • [DBH] libavcodec/adts_header.c
  • [DBH] libavcodec/adts_header.h
  • [DBH] libavcodec/adts_parser.c
  • [DBH] libavcodec/adts_parser.h
  • [DBH] libavformat/spdifdec.c
  • [DBH] libavformat/spdifenc.c