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• need help on solving my ffmpeg command line

  3 avril 2019, par DRMTV

  i create a small bash script to encode 1080p video , the video will be added with watermark at bottom left and i need to add a black padding on top and bottom

  i tried several way but still no luck , i tried -vf and yes it worked but cant use padding and watermark together , and suggest use filter_complex

  if i use this code directly without bash script it work

  time ffmpeg -hide_banner -i transformers.mp4 -i transformers.ass -loop 1 -i watermark.png -loop 1 -i logo.png -map 0:0 -map 0:1 -filter_complex "[0:0]scale=(iw*sar)*min(1920/(iw*sar)\,800/ih):ih*min(1920/(iw*sar)\,800/ih), pad=1920:800:(1920-iw*min(1920/iw\,800/ih))/2:(800-ih*min(1920/iw\,800/ih))/2;ass=transformers.ass[FID1];[FID1][2:v]overlay=10:${WATERMARKPOSITION}:repeatlast=0:enable='between(t,300,600)'[FID3];[3:v]fade=in:st=1200:d=1.6:alpha=1,fade=out:st=107998:d=1.6:alpha=1[FID6];[FID3][FID6]overlay=10:5:repeatlast=0:enable='between(t,1200,187922)'" -c:v libx264 -minrate 1800k -maxrate 1800k -bufsize 3600k -profile:v high -c:a aac -b:a 128k -profile:a aac_main -movflags faststart -strict -2 -f mp4 -y "transformers.mp4"

  but when i include it with my bash script i got this error ,

  [libx264 @ 0x2a063e0] height not divisible by 2 (300x39)
  
  Output #0, mp4, to '/movie/Paddy/output/Transformers.Age.of.Extinction.2014.1080p.BluRay.H264.AAC-RARBG.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      comment         : Transformers.Age.of.Extinction.2014.1080p.BluRay.H264.AAC-RARBG
  
      encoder         : Lavf57.71.100
  
      title           : Transformers Age of Extinction 2014 1080p BluRay H264 AAC-RARBG - Visit us @ Juraganfilm.COM
  
      Stream #0:0: Video: h264 (libx264), yuv420p, 1920x800 [SAR 1:1 DAR 12:5], q=-1--1, max. 2300 kb/s, 23.98 fps, 23.98 tbn, 23.98 tbc
  
      Metadata:
  
        encoder         : Lavc56.60.100 libx264
  
      Stream #0:1: Video: h264, none, q=2-31, 128 kb/s, SAR 1:1 DAR 0:0, 25 fps
  
      Metadata:
  
        encoder         : Lavc56.60.100 libx264
  
      Stream #0:2(eng): Audio: aac, 0 channels, 128 kb/s (default)
  
      Metadata:
  
        creation_time   : 2017-12-19 07:58:39
  
        handler_name    : SoundHandler
  
        encoder         : Lavc56.60.100 aac
  
  Stream mapping:
  
    Stream #0:0 (h264) -> scale (graph 0)
  
    Stream #0:0 (h264) -> overlay:overlay (graph 0)
  
    Stream #2:0 (png) -> ass (graph 0)
  
    Stream #3:0 (png) -> fade (graph 0)
  
    pad (graph 0) -> Stream #0:0 (libx264)
  
    overlay (graph 0) -> Stream #0:1 (libx264)
  
    Stream #0:1 -> #0:2 (aac (native) -> aac (native))
  
  Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height

  and below is the script i have been working on

  output="/movie/output"
  
  
  
  FILESDIR=`find $PWD -type f -regex ".*\.\(mp4\|mkv\|avi\)" | sed 's@.*/@@' | sort -n`
  
  for video in $FILESDIR
  
  do
  
  
  
  MOVIETITLE=${video%.*}
  
  INFOVID=${MOVIETITLE//./ }
  
  BITRATE="${HEIGHT}"
  
  WIDTH=$(ffprobe -v error -select_streams v:0 -show_entries stream=width,height -of csv=s=x:p=0 ${video} 2>&1 | sed -e 's|\[.*||g' | sed ':a;N;$!ba;s/\n//g' | sed -e 's|x.*||g')
  
  HEIGHT=$(ffprobe -v error -select_streams v:0 -show_entries stream=width,height -of csv=s=x:p=0 ${video} | sed -e 's/.*x//')
  
  WATERMARKPOSITION=$(expr $HEIGHT - 50)
  
  VIDEOMAP=$(ffmpeg -i $video 2>&1 | grep "Stream #" | grep Video | sed -e "s|.*\#||g" | sed -e "s|: Video.*||g" | sed -e "s|(.*||g")
  
  AUDIOMAP=$(ffmpeg -i $video 2>&1 | grep "Stream #" | grep Audio | sed -e "s|.*\#||g" | sed -e "s|: Audio.*||g" | sed -e "s|(.*||g")
  
  MAXRATE=$(expr $BITRATE + 500)
  
  BUFFSIZE=$(expr $MAXRATE \* 2)
  
  
  
  time ffmpeg -hide_banner -i $video -i $MOVIETITLE.ass -loop 1 -i $WATERMARK -loop 1 -i $LOGO -map ${VIDEOMAP} -map ${AUDIOMAP} -filter_complex "[${VIDEOMAP}]scale=(iw*sar)*min(${WIDTH}/(iw*sar)\,${HEIGHT}/ih):ih*min(${WIDTH}/(iw*sar)\,${HEIGHT}/ih), pad=${WIDTH}:${HEIGHT}:(${WIDTH}-iw*min(${WIDTH}/iw\,${HEIGHT}/ih))/2:(${HEIGHT}-ih*min(${WIDTH}/iw\,${HEIGHT}/ih))/2;ass=$MOVIETITLE.ass[FID1];[FID1][2:v]overlay=10:${WATERMARKPOSITION}:repeatlast=0:enable='between(t,300,600)'[FID3];[3:v]fade=in:st=1200:d=1.6:alpha=1,fade=out:st=107998:d=1.6:alpha=1[FID6];[FID3][FID6]overlay=10:5:repeatlast=0:enable='between(t,1200,187922)'" -c:v libx264 -minrate ${BITRATE}k -maxrate ${MAXRATE}k -bufsize ${BUFFSIZE}k -profile:v high -c:a aac -b:a 128k -profile:a aac_main -movflags faststart -strict -2 -f mp4 -y "${output}/$MOVIETITLE.mp4"
  
  done

  has been working all day and still i cant make it to work.

  can someone guide me which part is wrong ?

• FFmpeg - ANR on large files when mixing video and audio

  8 août 2019, par spaceman12

  This command

  ffmpeg -i video.webm -i audio.m4a -c copy output.mkv

  will always produce an ANR error in android at the end of the conversion for any large files, say greater than 700mb.

  The ANR error is produced only at the finishing end of the conversion process after the output has been successfully generated, not in the middle or at the beginning etc.

  So I suspect it has got to do with some I/O stuff at the end.
  Can someone please shed some light into this, and help eliminate this ANR problem ?

• Cannot find yasm even though I have installed it

  20 juillet 2017, par zhen lee

  I got a strange problem. I tried to install x264. When run sudo ./configure —enable-shared,
  it gave :

  Found no assembler
  Minimum version is yasm-0.7.0
  If you really want to compile without asm, configure with —disable-asm.

  But I already installed yasm-0.7.0 ,to prove that ,i run yasm —version,it gave :

  *yasm 0.7.0.2066
  Compiled on May 8 2012.
  Copyright (c) 2001-2008 Peter Johnson and other Yasm developers.
  Run yasm —license for licensing overview and summary.*

  I install yasm to /usr/local/yasm,
  Why can it not find yasm ?