Recherche avancée

Sur d’autres sites (10535)

• Probing an RTMP address for streaming to check if it's in use

  20 juillet 2020, par hedgehog90

  I need a quick, lightweight method to probe rtmp addressses in Windows and Ubuntu to see if they are 'free' for upload.

  


  One possible way of checking is to simply send a dummy video stream to an rtmp address with a simple ffmpeg command :

  


  ffmpeg -re -f lavfi -i color=c=black:s=2x2:r=1 -f lavfi -i anullsrc=cl=mono:r=44100 -c:v h264 -c:a aac -t 10 -f flv -y rtmp://streaming.service.com/live/1234567890

  


  If the rtmp address is in use, depending on the streaming service's rtmp server, I'll get an error response from ffmpeg like

  


  [rtmp @ 000002a908997cc0] Server error: Stream name is already in use: 1234567890
rtmp://streaming.service.com/live/1234567890: Operation not permitted


  


  However, if the rtmp address is free then it will publish my dummy video stream, which I don't want to do.

  


  Preferably I'd just like to probe the rtmp server without encoding a dummy video stream.

  


  I've tried using ffprobe and rtmpdump but for streaming services they usually won't allow playback from the rtmp address they assign you, the request will be rejected.

  


  I'm programming in javascript for a NodeJS application, so if there's a node package available then that would be very useful to know.

  


• Batch Copy Cover Art from One Song to Another (Identical File Names)

  21 novembre 2016, par LeLwrence

  I’m looking for a way to copy the album art from one set of songs to another set of the same songs that don’t have the album art. FFMPEG copies the text tags (artist, album, title...) perfectly, but will not copy the embedded album artwork.

  I’ve been trying to batch convert my folder of MP3s into 128k AAC (using FFMPEG and the libfdk-aac codec) files to save space on my phone, but it hasn’t copied my album art over to the new songs.
  I used the following batch command :

  FOR /F "tokens=*" %%G IN ('dir /b *.mp3') DO ffmpeg -i "%%G" -c:a libfdk_aac -b:a 128k "%%~nG.m4a"

  EDIT : I tried using the following command to test it out, because stream 0:0 is the audio, and stream 0:1 is the JPEG, however it did not work :

  ffmpeg -i Estranged.mp3 -map 0:0 -map 0:1 -c:a libfdk_aac -b:a 128k -c:v copy Estranged.m4a

  Here’s a paste of the log : http://pastebin.com/dZFsvR7F (I know, it’s not the latest version. I had trouble compiling it myself but I’m currently working on it.)

  Is there a way to copy the album art (or entire tag, if need be) from songs with an identical name in one folder to the songs in the new folder ?

  I.E. C:\Folder1\song.mp3 → C:\Folder2\song.m4a

  Thanks.

• Batch Copy Cover Art from One Song to Another (Identical File Names)

  19 juillet 2020, par LeLwrence

  I'm looking for a way to copy the album art from one set of songs to another set of the same songs that don't have the album art. FFMPEG copies the text tags (artist, album, title...) perfectly, but will not copy the embedded album artwork.

  



  I've been trying to batch convert my folder of MP3s into 128k AAC (using FFMPEG and the libfdk-aac codec) files to save space on my phone, but it hasn't copied my album art over to the new songs.
I used the following batch command :

  



  FOR /F "tokens=*" %%G IN ('dir /b *.mp3') DO ffmpeg -i "%%G" -c:a libfdk_aac -b:a 128k "%%~nG.m4a"


  



  EDIT : I tried using the following command to test it out, because stream 0:0 is the audio, and stream 0:1 is the JPEG, however it did not work :

  



  ffmpeg -i Estranged.mp3 -map 0:0 -map 0:1 -c:a libfdk_aac -b:a 128k -c:v copy Estranged.m4a


  



  Here's a paste of the log : http://pastebin.com/dZFsvR7F (I know, it's not the latest version. I had trouble compiling it myself but I'm currently working on it.)

  



  Is there a way to copy the album art (or entire tag, if need be) from songs with an identical name in one folder to the songs in the new folder ?

  



  I.E. C:\Folder1\song.mp3 → C:\Folder2\song.m4a

  



  Thanks.