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• Muxing files with different run times

  16 novembre 2019, par Dhruv Kanojia

  I’ve got a few files I want to mux.
  File 1 : MP4 File with runtime of 23 Minutes 45 Seconds
  File 2 : MP4 File with runtime of 23 Minutes 39 Seconds
  File 3 : Subtitle File
  File 4 : Subtitle File
  File 5 : Subtitle File
  File 6 : Subtitle File
  File 7 : Subtitle File
  File 8 : Subtitle File
  File 9 : Subtitle File

  I’m trying to mux these files. Now, since there’s a runtime difference, I’m getting weird errors like :

  [matroska @ 0x55e029fbd1a0] Only audio, video, and subtitles are supported for Matroska.
  
  av_interleaved_write_frame(): Invalid argument
  
  Error writing trailer of /root/my_dls/Output/My Vid/1/en-us/1080p/My Video - 1 [Dual Audio].mkv: Invalid argument

  I can mux files with same run time just fine... but, I’m stuck on this one. Can someone help me out here.

  The command I’m using :

  ffmpeg -i "/root/my_dls/Output/My Vid/1/en-us/1080p/My Video - 1 [enUS].mp4" -i "/root/my_dls/Output/My Vid/1/en-us/1080p/My Video - 1 [jaJP].mp4" -i "/root/my_dls/Output/My Vid/1/en-us/1080p/My Video - 1 [enUS] .ass" -i "/root/my_dls/Output/My Vid/1/en-us/1080p/My Video - 1 [itIT] .ass" -i "/root/my_dls/Output/My Vid/1/en-us/1080p/My Video - 1 [esLA] .ass" -i "/root/my_dls/Output/My Vid/1/en-us/1080p/My Video - 1 [frFR] .ass" -i "/root/my_dls/Output/My Vid/1/en-us/1080p/My Video - 1 [esES] .ass" -i "/root/my_dls/Output/My Vid/1/en-us/1080p/My Video - 1 [deDE] .ass" -i "/root/my_dls/Output/My Vid/1/en-us/1080p/My Video - 1 [ruRU] .ass" -i "/root/my_dls/Output/My Vid/1/en-us/1080p/My Video - 1 [ptBR] .ass" -map 1 -map 2 -map 3 -map 4 -map 5 -map 6 -map 7 -map 8  -map 0:v -map 0:a -map 1:a -c copy -metadata:s:a:0 title="English Audio" -metadata:s:a:1 title="Japanese Audio" -metadata:s:a:0 language=eng -metadata:s:a:1 language=jpn -metadata:s:s:0 title="English (US) Subtitle" -metadata:s:s:1 title="Italian Subtitle" -metadata:s:s:2 title="Spanish (Latin America) Subtitle" -metadata:s:s:3 title="French Subtitle" -metadata:s:s:4 title="Spanish Subtitle" -metadata:s:s:5 title="Deutsch Subtitle" -metadata:s:s:6 title="Russian Subtitle" -metadata:s:s:7 title="Portuguese Subtitle"  "/root/my_dls/Output/My Vid/1/en-us/1080p/My Video - 1 [Dual Audio].mkv"

• ffmpeg - remove sequentially duplicate frames and write removed frames with frame number to log file

  18 mai 2019, par takla

  I want to upscale an anime with waifu2x. But it would take multiple days. So to cut down the time required, I’d like to remove some duplicated frames first.

  I need some help in figuring out how to remove duplicated frames from a video but write these removed frames to a log file, with the accurate frame number, e.g. lets say 04453, 04454, 04455 were duplicates, I want these numbers to be written to a log file. I know the answer in this thread comes pretty close to what I want to achieve https://stackoverflow.com/a/37089629 but I have no idea how to process from there.

• Installation of opencv and ffmpeg on anaconda

  17 mars 2017, par user564650

  I am using an amazon EC2 instance and working on a deep learning problem. I want to install opencv along with ffmpeg on anaconda python in order to process the video frames. Can somebody please help out with the installation ?