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• Getting issue in command prompt while executing FFmpeg command because of exceeded string limit.(Windows)

  22 juin 2021, par John Smith

  This is the command that I want to execute but it exceeds the string limit of command in COMMAND PROMPT of WINDOWS. Please help me by correcting my ffmpeg command or suggesting me some solution so that I can compress my ffmpeg command that does not exceed the command string limit.
I am setting an overlay of images on video, that is 25 frames/second. Every image overlay changes every 40ms and user see a text animation on video.
I have tried other options such as making a gif from sequence of images but when the gif is created then a background colour is added (even though the images that I used have no background) which is seen on video when I use it as overlay on video. Apart from this, I tried to make video from images but the output video has low quality graphics. Both the conversions I did in FFmpeg.

  


  Problem aroused when the string limit reached in command prompt before that I was able to execute command that adds images overlays after every 40 ms. Please suggest me some way.

  


  Images shows that command string limit reached in command prompt of Windows so the command is incomplete

  


  

  


  C:/ffmpeg/bin/ffmpeg -i images/cut.mp4 -i images/img0.png -i images/img1.png -i images/img2.png -i images/img3.png -i images/img4.png -i images/img5.png -i images/img6.png -i images/img7.png -i images/img8.png -i images/img9.png -i images/img10.png -i images/img11.png -i images/img12.png -i images/img13.png -i images/img14.png -i images/img15.png -i images/img16.png -i images/img17.png -i images/img18.png -i images/img19.png -i images/img20.png -i images/img21.png -i images/img22.png -i images/img23.png -i images/img24.png -i images/img25.png -i images/img26.png -i images/img27.png -i images/img28.png -i images/img29.png -i images/img30.png -i images/img31.png -i images/img32.png -i images/img33.png -i images/img34.png -i images/img35.png -i images/img36.png -i images/img37.png -i images/img38.png -i images/img39.png -i images/img40.png -i images/img41.png -i images/img42.png -i images/img43.png -i images/img44.png -i images/img45.png -i images/img46.png -i images/img47.png -i images/img48.png -i images/img49.png -i images/img50.png -i images/img51.png -i images/img52.png -i images/img53.png -i images/img54.png -i images/img55.png -i images/img56.png -i images/img57.png -i images/img58.png -i images/img59.png -i images/img60.png -i images/img61.png -i images/img62.png -i images/img63.png -i images/img64.png -i images/img65.png -i images/img66.png -i images/img67.png -i images/img68.png -i images/img69.png -i images/img70.png -i images/img71.png -i images/img72.png -i images/img73.png -i images/img74.png -i images/img75.png -i images/img76.png -i images/img77.png -i images/img78.png -i images/img79.png -i images/img80.png -i images/img81.png -i images/img82.png -i images/img83.png -i images/img84.png -i images/img85.png -i images/img86.png -i images/img87.png -i images/img88.png -i images/img89.png -i images/img90.png -i images/img91.png -i images/img92.png -i images/img93.png -i images/img94.png -i images/img95.png -i images/img96.png -i images/img97.png -i images/img98.png -i images/img99.png -i images/img100.png -i images/img101.png -i images/img102.png -i images/img103.png -i images/img104.png -i images/img105.png -i images/img106.png -i images/img107.png -i images/img108.png -i images/img109.png -i images/img110.png -i images/img111.png -i images/img112.png -i images/img113.png -i images/img114.png -i images/img115.png -i images/img116.png -i images/img117.png -i images/img118.png -i images/img119.png -i images/img120.png -i images/img121.png -i images/img122.png -i images/img123.png -i images/img124.png -i images/img125.png -i images/img126.png -i images/img127.png -i images/img128.png -i images/img129.png -i images/img130.png -i images/img131.png -i images/img132.png -i images/img133.png -i images/img134.png -i images/img135.png -i images/img136.png -i images/img137.png -i images/img138.png -i images/img139.png -i images/img140.png -i images/img141.png -i images/img142.png -i images/img143.png -i images/img144.png -i images/img145.png -i images/img146.png -i images/img147.png -i images/img148.png -i images/img149.png -i images/img150.png -i images/img151.png -i images/img152.png -i images/img153.png -i images/img154.png -i images/img155.png -i images/img156.png -i images/img157.png -i images/img158.png -i images/img159.png -i images/img160.png -i images/img161.png -i images/img162.png -i images/img163.png -i images/img164.png -i images/img165.png -i images/img166.png -i images/img167.png -i images/img168.png -i images/img169.png -i images/img170.png -i images/img171.png -i images/img172.png -i images/img173.png -i images/img174.png -i images/img175.png -i images/img176.png -i images/img177.png -i images/img178.png -i images/img179.png -i images/img180.png -i images/img181.png -i images/img182.png -i images/img183.png -i images/img184.png -i images/img185.png -i images/img186.png -i images/img187.png -i images/img188.png -i images/img189.png -i images/img190.png -i images/img191.png -i images/img192.png -i images/img193.png -i images/img194.png -i images/img195.png -i images/img196.png -i images/img197.png -i images/img198.png -i images/img199.png -i images/img200.png -filter_complex "[1][0]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,0,0.04)'[v1]; 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[117][v116]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,4.64,4.68)'[v117]; [118][v117]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,4.68,4.72)'[v118]; [119][v118]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,4.72,4.76)'[v119]; [120][v119]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,4.76,4.8)'[v120]; [121][v120]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,4.8,4.84)'[v121]; [122][v121]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,4.84,4.88)'[v122]; [123][v122]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,4.88,4.92)'[v123]; [124][v123]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,4.92,4.96)'[v124]; [125][v124]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,4.96,5)'[v125]; [126][v125]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,5,5.04)'[v126]; [127][v126]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,5.04,5.08)'[v127]; [128][v127]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,5.08,5.12)'[v128]; [129][v128]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,5.12,5.16)'[v129]; [130][v129]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,5.16,5.2)'[v130]; [131][v130]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,5.2,5.24)'[v131]; [132][v131]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,5.24,5.28)'[v132]; [133][v132]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,5.28,5.32)'[v133]; [134][v133]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,5.32,5.36)'[v134]; [135][v134]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,5.36,5.4)'[v135]; [136][v135]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,5.4,5.44)'[v136]; [137][v136]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,5.44,5.48)'[v137]; [138][v137]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,5.48,5.52)'[v138]; [139][v138]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,5.52,5.56)'[v139]; [140][v139]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,5.56,5.6)'[v140]; [141][v140]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,5.6,5.64)'[v141]; [142][v141]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,5.64,5.68)'[v142]; [143][v142]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,5.68,5.72)'[v143]; [144][v143]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,5.72,5.76)'[v144]; [145][v144]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,5.76,5.8)'[v145]; [146][v145]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,5.8,5.84)'[v146]; [147][v146]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,5.84,5.88)'[v147]; [148][v147]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,5.88,5.92)'[v148]; [149][v148]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,5.92,5.96)'[v149]; [150][v149]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,5.96,6)'[v150]; [151][v150]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,6,6.04)'[v151]; [152][v151]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,6.04,6.08)'[v152]; [153][v152]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,6.08,6.12)'[v153]; [154][v153]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,6.12,6.16)'[v154]; [155][v154]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,6.16,6.2)'[v155]; [156][v155]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,6.2,6.24)'[v156]; [157][v156]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,6.24,6.28)'[v157]; [158][v157]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,6.28,6.32)'[v158]; [159][v158]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,6.32,6.36)'[v159]; [160][v159]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,6.36,6.4)'[v160]; [161][v160]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,6.4,6.44)'[v161]; [162][v161]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,6.44,6.48)'[v162]; [163][v162]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,6.48,6.52)'[v163]; [164][v163]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,6.52,6.56)'[v164]; [165][v164]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,6.56,6.6)'[v165]; [166][v165]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,6.6,6.64)'[v166]; [167][v166]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,6.64,6.68)'[v167]; [168][v167]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,6.68,6.72)'[v168]; [169][v168]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,6.72,6.76)'[v169]; [170][v169]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,6.76,6.8)'[v170]; [171][v170]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,6.8,6.84)'[v171]; [172][v171]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,6.84,6.88)'[v172]; [173][v172]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,6.88,6.92)'[v173]; [174][v173]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,6.92,6.96)'[v174]; [175][v174]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,6.96,7)'[v175]; [176][v175]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,7,7.04)'[v176]; [177][v176]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,7.04,7.08)'[v177]; [178][v177]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,7.08,7.12)'[v178]; [179][v178]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,7.12,7.16)'[v179]; [180][v179]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,7.16,7.2)'[v180]; [181][v180]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,7.2,7.24)'[v181]; [182][v181]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,7.24,7.28)'[v182]; [183][v182]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,7.28,7.32)'[v183]; [184][v183]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,7.32,7.36)'[v184]; [185][v184]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,7.36,7.4)'[v185]; [186][v185]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,7.4,7.44)'[v186]; [187][v186]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,7.44,7.48)'[v187]; [188][v187]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,7.48,7.52)'[v188]; [189][v188]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,7.52,7.56)'[v189]; [190][v189]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,7.56,7.6)'[v190]; [191][v190]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,7.6,7.64)'[v191]; [192][v191]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,7.64,7.68)'[v192]; [193][v192]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,7.68,7.72)'[v193]; [194][v193]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,7.72,7.76)'[v194]; [195][v194]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,7.76,7.8)'[v195]; [196][v195]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,7.8,7.84)'[v196]; [197][v196]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,7.84,7.88)'[v197]; [198][v197]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,7.88,7.92)'[v198]; [199][v198]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,7.92,7.96)'[v199]; [200][v199]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='between(t,7.96,8)'[v200]; [201][v200]scale2ref[b][a];[a][b]overlay=x=0:y=0:enable='gt(t,8)'[v201]" -map "[v201]" -map 0:a edited_videos/output.mp4


  


  Below is short version of command in which there are only fourinputs but in the above actual command the number of inputs increased

  


  ffmpeg -i sample.mp4 -i img0.png -i img1.png -i img2.png    -filter_complex  "[0][1]overlay=x=20:y=20:enable='between(t,1.5,1.8)'[v1];  [v1][2]overlay=x=20:y=20:enable='between(t,1.8,3)'[v2];          [v2][3]overlay=x=20:y=20:enable='gt(t,3)'[v3]"         -map "[v3]" -map 0:a  outa.mp4


  


• avfilter/vf_paletteuse : do not sort transparency color

  19 août 2021, par Paul B Mahol

  avfilter/vf_paletteuse : do not sort transparency color
  Make last palette entry always transparent color.
  
  Fixes wrong filtered output with new=1 option set.
  

  • [DH] libavfilter/vf_paletteuse.c

• cbs_h265 : read/write HEVC PREFIX SEI

  10 mai 2018, par Haihao Xiang

  cbs_h265 : read/write HEVC PREFIX SEI
  Similar to H264, cbs_h265_read, write_nal_unit() can handle HEVC
  
  prefix SEI NAL units. Currently mastering display colour volume SEI
  
  message is added only, we may add more SEI message if needed later
  Signed-off-by : Haihao Xiang <haihao.xiang@intel.com>
  

  • [DH] libavcodec/cbs_h2645.c
  • [DH] libavcodec/cbs_h265.h
  • [DH] libavcodec/cbs_h265_syntax_template.c