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• avformat/avformat : Remove redundant "NOT PART OF PUBLIC API"

  18 mars 2020, par Andreas Rheinhardt

  avformat/avformat : Remove redundant "NOT PART OF PUBLIC API"
  AVStream.request_probe as well as AVStream.mux_ts_offset are below the
  
  separator of public and private fields, so that a further "NOT PART OF
  
  PUBLIC API" is redundant.
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
  

  • [DH] libavformat/avformat.h

• 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

• How to split one overlay script to multiple part scripts ?

  4 mai 2024, par mikezang

  I can slide 30 images from left to center and countdown 10 seconds, then keep slide to left..., but run this script more than hours...

  


  script.txt

  


  [0:v]scale=864:504:force_original_aspect_ratio=decrease,pad=864:504:-1:-1,setsar=1[s0];
[1:v]scale=864:504:force_original_aspect_ratio=decrease,pad=864:504:-1:-1,setsar=1[s1];
...
[29:v]scale=864:504:force_original_aspect_ratio=decrease,pad=864:504:-1:-1,setsar=1[s29];

[s0]split=2[bg][v];
[bg]drawbox=c=white:t=fill[bg];
[bg][v]overlay=x='if(between(t,0,10),max(W-w*(t-0),0),max(0-w*(t-10),0-W))',
drawtext=fontfile='/WINDOWS/Fonts/Arial.ttf':text='%{eif\:10-t\:d}':
box=1:boxborderw=10|14:fontsize=24:x=w-tw-10:y=14:boxcolor=orange@0.4:fontcolor=red:enable='between(t,0,10)'[v0];

[v0][s1]overlay=x='if(between(t,10,20),max(W-w*(t-10),0),max(0-w*(t-20),0-W))',
drawtext=fontfile='/WINDOWS/Fonts/Arial.ttf':text='%{eif\:20-t\:d}':
box=1:boxborderw=10|14:fontsize=24:x=w-tw-10:y=14:boxcolor=orange@0.4:fontcolor=red:enable='between(t,10,20)'[v1];
...


  


  script.bat

  


  ffmpeg -hide_banner ^
    -loop 1 -i "images\01.png" ^
    -loop 1 -i "images\02.png" ^
...
    -loop 1 -i "images\30.png" ^
    -filter_complex_script script.txt ^
    -t 300 -y videos/mergeYearsTest.mp4


  


  I think that I can split script to create 30 parts video then merge them to shorten time :

  


  scipt-01.txt

  


  [0:v]scale=864:504:force_original_aspect_ratio=decrease,pad=864:504:-1:-1,setsar=1[s0];
[s0]split=2[bg][v];
[bg]drawbox=c=white:t=fill[bg];
[bg][v]overlay=x='if(between(t,0,10),max(W-w*(t-0),0),max(0-w*(t-10),0-W))',
drawtext=fontfile='/WINDOWS/Fonts/Arial.ttf':text='%{eif\:10-t\:d}':
box=1:boxborderw=10|10:fontsize=24:x=w-tw-10:y=10:boxcolor=orange@0.4:fontcolor=red:enable='between(t,0,10)';


  


  script-01.bat

  


  ffmpeg -hide_banner -loop 1 -i "images\01.png" ^   
    -filter_complex_script script-01.txt -t 10 -y v01.mp4


  


  v01.mp4 is no any problems.

  


  script-02.txt

  


  [0:v]scale=864:504:force_original_aspect_ratio=decrease,pad=864:504:-1:-1,setsar=1[s0];
[1:v]scale=864:504:force_original_aspect_ratio=decrease,pad=864:504:-1:-1,setsar=1[s1];

[s0][s1]overlay=x='if(between(t,10,20),max(W-w*(t-10),0),max(0-w*(t-20),0-W))',
drawtext=fontfile='/WINDOWS/Fonts/Arial.ttf':text='%{eif\:20-t\:d}':
box=1:boxborderw=10|10:fontsize=24:x=w-tw-10:y=10:boxcolor=orange@0.4:fontcolor=red:enable='between(t,10,20)';


  


  script-02.bat

  


  ffmpeg -hide_banner -i "v01.mp4" -loop 1 -i "images\02.png" ^
    -filter_complex_script script-02.txt -t 10 -y v02.mp4


  


  but this v02.mp4 is the same as v01.mp4 without slide next image, I also tried -loop 1 "v01.mp4", that will be error, what can I do to create v02.mp4 as the same affect with full script ?

  


  ====================================================

  


  I got what I wonder, script-02 should be as below :

  


  script-02.txt
[0:v]scale=864:504:force_original_aspect_ratio=decrease,pad=864:504 :-1 :-1,setsar=1[s0] ;
[1:v]scale=864:504:force_original_aspect_ratio=decrease,pad=864:504 :-1 :-1,setsar=1[s1] ;

  


  [s0][s1]overlay=x='if(between(t,0,10),max(W-w*t,0),max(0-w*(t-10),0-W))',
drawtext=fontfile='/WINDOWS/Fonts/Arial.ttf':text='%{eif\:10-t\:d}':
box=1:boxborderw=10|10:fontsize=24:x=w-tw-10:y=10:boxcolor=orange@0.4:fontcolor=red:enable='between(t,0,10)';


  


  script-02.bat

  


  ffmpeg -hide_banner 
    -loop 1 -i "images\01.png" 
    -loop 1 -i "images\02.png" 
    -filter_complex_script script-02.txt -t 10 -y v02.mp4