Recherche avancée

Sur d’autres sites (9866)

• discord.py - FFmpegPCMAudio using a lot of CPU

  7 août 2020, par Cyxo

  I made a Discord bot using the discord.py library which aims at playing a web radio in several voice channels. Basically it's the same audio stream for every channel.

  


  What I'm doing right now is :

  


  voice_channel.play(discord.FFmpegPCMAudio(stream_url))


  


  However every FFmpegPCMAudio uses about 10% of my CPU and there's one for each vc so eventually my bot crashed a lot when playing in 10 channels (which isn't a lot).

  


  Since it's the same stream, I tried the following :

  


  player = FFmpegPCMAudio(stream_url)
for voice_channel in vcs:
    voice_channel.play(player)


  


  But the sound was stuttering a lot (maybe it was playing the sound a bit to each sequentially like the way threading works)

  


  Can you think of any other way I could reduce the load on the CPU since it is the same audio stream playing ? Either a discord.py trick or a FFmpeg trick maybe, like manually running one FFmpeg and using it for each channel ?

  


• Converting bat to bash script [on hold]

  15 juillet 2019, par dezxela

  Please help me with coversion this script from here to bash :
  https://stackoverflow.com/a/38291960/11786146

  This part of the code seems to be reconciled in me, but I’m not sure that it’s correct :

  #  path to ffmpeg
  
  export  ffmpeg='/home/user/bin'
  
  #  source movies from
  
  export  movieSource='/mnt/dev1/radio/Masha'
  
  #  tmp dir
  
  export  tmpDir='/mnt/dev1/radio/Masha'
  
  
  
  
  
  #  setup positon, color, background, font for the text overlays
  
  #  filterComplex, quotes have to be escaped! -> \"
  
  #  BITC - Burned In Time Code
  
  export  filterComplexTimecode='drawtext=fontfile='/usr/share/fonts/truetype/freefont/FreeSerif.ttf': timecode='10\:00\:00\:00': timecode_rate=24: x=(w-tw)/2: y=h-(1*lh)-3: fontsize=20: fontcolor=white@0.4: box=1: boxcolor=0x00000000@0.4: boxborderw=4'
  
  #  Date
  
  export  filterComplexDate='drawtext=fontfile='/usr/share/fonts/truetype/freefont/FreeSerif.ttf': text='%{localtime\:%X}': x=(w-tw-3): y=h-(1*lh)-3: fontsize=20: fontcolor=white@0.4: box=1: boxcolor=0x00000000@0.4: boxborderw=4'
  
  #  Shotname
  
  export  filterComplexShotname='drawtext=fontfile='/usr/share/fonts/truetype/freefont/FreeSerif.ttf': x=0: y=h-(1*lh)+1: fontsize=20: fontcolor=white@0.4: box=1: boxcolor=0x00000000@0.4: boxborderw=4:'
  
  
  
  #  create a list of all files
  
  find "$movieSource" -name "*.mp4" -type f | sort -R | while read j; do echo "file '$j'" >> $tmpDir/filelist.txt; done
  
  
  
  echo filename, durationInSeconds > $tmpDir/fileNameDuration.txt
  
  for file in $movieSource/*.mp4; do
  
    #  Reset current duration to 0 (zero) for each loop
  
    export  curDuration=0
  
    #  get the filename without file extenion
  
    export  fileName=${file##*/}
  
    #  get the duration of a single clip
  
    #  and write it to a tmp textfile
  
    $ffmpeg/ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 "$file" > $tmpDir/fileTempDuration.txt
  
    #  read the textfile again into a variable
  
   read -p  < $tmpDir/fileTempDuration.txt last curDuration
  
  
  
    #  write the filename and the duration to a new list of all files
  
  echo $fileName,$curDuration >> $tmpDir/fileNameDuration.txt ;done
  
  
  
  #  concate a filter complex string for ffmpeg with all clipnames as textlayer with a inpoint and outpoint
  
  export  filterComplexShotnameCombined=
  
  #  floating numbers are not supported by batch, so we need to work-around that
  
  source  :IntAsFP b=0.000000
  
  for i in $tmpDir/fileNameDuration.txt; do
  
    source  :IntAsFP a=$j
  
    source  :IntToFP inPoint=$b 6
  
    export  c=$(expr a + b)
  
    export   b=c
  
    source  :IntToFP outPoint=$c 6
  
    #  just to check whats going on...
  
    echo name: $i   duration: $j   inPoint: $inPoint   outPoint: $outPoint
  
    export  filterComplexShotnameCombined='$filterComplexShotnameCombined, $filterComplexShotname text=$i: enable=between(t\,$inPoint\,$outPoint^^^)';done

• FFMPEG display video supported resolution formats only

  10 juillet 2014, par user3361920

  I am working on a site in which there is video listings display section. On click of a video the video detail page opens. In that detail page the video can be downloaded in the following resolutions :-

  4K RESOLUTION

  HD 1080P RESOLUTION

  HD 720P RESOLUTION

  SD 720 RESOLUTION

  640X360 WEB

  The user can select any one of these resolution format via radio button and video will be downloaded in that resolution after getting converted on the fly. I am using FFMPEG and h264 library for conversion. While uploading the original resolution is fetched using this same ffmpeg and is saved in the database.
  Now what I need is out of these resolutions only those resolutions should display on the detail page for a particular video which the video supports. For ex. if the video displaying on the page does not support HD 1080P Resolution (2nd one above) then it should not be displayed and hence will not be available for the video to be converted and downloaded in this resolution and similarly for other ones. Please let me know is it possible bcoz I am not a pro in php and especially to ffmpeg and not sure whether this is even possible or not and if yes then how ?. Any help will be most appreciated and thanks in advance.