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• FFMPEG with Ubuntu and Multicast UDP Help me

  20 juin 2016, par michell

  good morning !
  My name is Michael, i’m Brazilian (sorry, my english is very bad :D)

  I’m transmiting by a computer use VLC transport stream about group multicast 239.0.0.1:5001 and receiving by another computer Ubuntu OS using ffmpeg.
  How i record this transport stream to .ts file with ffmpeg ?
  how i check bitrate of transport stream, null packets and vídeo with ffmpeg ?

  Help me, i will buy a chocolate for you haha :D

  Thanks for your support.

  Michaell

• 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"

• drawtext japanese language by ffmpeg !!! plz help me

  26 juillet 2021, par Callum McGrath

  I use drawtext command to write text on video, I succeeded in English but when I use Japanese, the video output shows a square.... I can't edit it here is my code

  


  ffmpeg -y -i "{input}.*" -vf "drawtext="textfile=1.txt:fontfile=/path/to/HGRSMP.ttf:y=20:x=w-t*150:fontcolor=red:fontsize=50"" -codec:a copy "{output}123.*"


  


  File 1.txt :

  


  


  どのように私に約束をしましたか
Plz help me !