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• fftools/ffmpeg_enc : do not round frame durations prematurely

  1er octobre 2023, par Anton Khirnov

  fftools/ffmpeg_enc : do not round frame durations prematurely
  Changes the results of fate-idroq-video-encode and fate-lavf* tests,
  
  where different frames now get duplicated by framerate conversion code.
  

  • [DH] fftools/ffmpeg_enc.c
  • [DH] tests/ref/fate/idroq-video-encode
  • [DH] tests/ref/lavf/dv_ntsc
  • [DH] tests/ref/lavf/gxf_ntsc
  • [DH] tests/ref/lavf/ismv
  • [DH] tests/ref/lavf/mov
  • [DH] tests/ref/lavf/mp4
  • [DH] tests/ref/lavf/mpg
  • [DH] tests/ref/lavf/mxf

• avcodec : add a Film Grain codec property flag

  16 août 2021, par James Almer

  avcodec : add a Film Grain codec property flag
  Signed-off-by : James Almer <jamrial@gmail.com>
  

  • [DH] doc/APIchanges
  • [DH] doc/ffprobe.xsd
  • [DH] fftools/ffprobe.c
  • [DH] libavcodec/avcodec.c
  • [DH] libavcodec/avcodec.h
  • [DH] libavcodec/version.h
  • [DH] tests/ref/fate/concat-demuxer-extended-lavf-mxf
  • [DH] tests/ref/fate/concat-demuxer-extended-lavf-mxf_d10
  • [DH] tests/ref/fate/concat-demuxer-simple1-lavf-mxf
  • [DH] tests/ref/fate/concat-demuxer-simple1-lavf-mxf_d10
  • [DH] tests/ref/fate/concat-demuxer-simple2-lavf-ts
  • [DH] tests/ref/fate/ffprobe_compact
  • [DH] tests/ref/fate/ffprobe_csv
  • [DH] tests/ref/fate/ffprobe_default
  • [DH] tests/ref/fate/ffprobe_flat
  • [DH] tests/ref/fate/ffprobe_ini
  • [DH] tests/ref/fate/ffprobe_json
  • [DH] tests/ref/fate/ffprobe_xml
  • [DH] tests/ref/fate/ffprobe_xsd

• Drawtext and overlay video in one round with FFmpeg

  11 janvier 2019, par Chili

  I have two working solutions (Thanks to the internet and the community !), but I can’t merge them in one pass.

  1st the text :

  How can I determine the position of the text ? The textdraw working nice, encoding the filename to the video, but the positioning doesn’t work, I change the x,y values in vain.

  for i in *.mp4; do ffmpeg -i "$i" \
  
  -c:v libx264 -profile:v main -level:v 3.1 -pix_fmt yuv420p -an \
  
  -filter_complex "[0]split[base][text]; \
  
  [text]drawtext=fontfile=font.ttf: fontsize=50: fontcolor=white: \
  
  shadowcolor=black@0.6: shadowx=4: shadowy=2: \
  
  text='${i%*_v*.*}': \
  
  box=1: boxcolor=a60000@0.4: boxborderw=6: \
  
  x=(w-text_w)/2:y=(h-text_h)/2,format=yuva444p,fade=t=in:st=0:d=1:alpha=1,fade=t=out:st=6:d=1:alpha=1[subtitles]; \
  
  [base][subtitles]overlay" \
  
  -f mp4 -y "${i%.*}.mp4";
  
  done

  ---

  2nd text with overlay. I have one trasnparent overlay video file and try to use it with text file, the order is the next ;

  • On top - the text (from the 1st problem)
  • Between the source and text overlay video
  • Bottom - source video

  If I try to encode overlay with the source video, it working good.

  ffmpeg -i sourcefile.mp4 -i overlayvideo.mov \
  
  -filter_complex "[0:v]setpts=PTS-STARTPTS[v0];[1:v]setpts=PTS-STARTPTS[v1];[v0][v1]overlay=eof_action=pass[out1]" \
  
  -map [out1] \
  
  -f mp4 -y output.mp4

  How can I use it with a previous text command in one pass ? I want to use it in batch script file on macOS.
  Thank you for your ideas and advice.