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• avfilter/framesync : add a new option to set how to sync streams based on secondary...

  2 août 2022, par James Almer

  avfilter/framesync : add a new option to set how to sync streams based on secondary input timestamps
  Include two values for it, a default one that sets/keeps the current behavior,
  
  where the frame event generated by the primary input will have a timestamp
  
  equal or higher than frames in secondary input, plus a new one where the
  
  secondary input frame will be that with the absolute closest timestamp to that
  
  of the frame event one.
  Addresses ticket #9689, where the new optional behavior produces better frame
  
  syncronization.
  Reviewed-by : Nicolas George <george@nsup.org>
  
  Signed-off-by : James Almer <jamrial@gmail.com>
  

  • [DH] libavfilter/framesync.c
  • [DH] libavfilter/framesync.h

• avfilter/avfiltergraph : remove unnecessary channel layout copy

  5 août 2022, par James Almer

  avfilter/avfiltergraph : remove unnecessary channel layout copy
  It's not modified, so we can simply use a const pointer to it.
  
  Also check the return value of the other copy in the function while at it.
  Reviewed-by : Nicolas George <george@nsup.org>
  
  Signed-off-by : James Almer <jamrial@gmail.com>
  

  • [DH] libavfilter/avfiltergraph.c

• How can I get metadata of playing track when I stream via ffmpeg ?

  10 juin 2022, par Viktor Kushnir

  I have one video.mp4 in loop and collection of mp3 that also plays in loop.

  


  start.sh

  


  #! /bin/bash

VBR="4500k"
FPS="30"
QUAL="superfast"

YOUTUBE_URL="rtmp://a.rtmp.youtube.com/live2/XXXX-XXXX-XXXX-XXXX-XXXX"
VIDEO_SOURCE="video.mp4"
AUDIO_ENCODER="aac"

ffmpeg \
-stream_loop -1 \
-re \
-i "$VIDEO_SOURCE" \
-thread_queue_size 512 \
-stream_loop -1 \
-re \
-f concat -i playlist.txt \
-vf drawtext="fontfile=OpenSans.ttf:text='Track Title':fontsize=26:fontcolor=white:borderw=1:bordercolor=black:x=40:y=1020" \
-map 0:v:0 -map 1:a:0 \
-map_metadata:g 1:g \
-c:v libx264 -preset $QUAL -r $FPS -g $(($FPS *2)) -b:v $VBR -bufsize 3000k -maxrate $VBR \
-c:a $AUDIO_ENCODER -ar 44100 -b:a 128k -pix_fmt yuv420p \
-f flv \
-flvflags no_duration_filesize \
$YOUTUBE_URL 


  


  I want to show in drawtext playing track metadata like title, artist...
ffmpeg show me only frame, fps, bitrate..

  


  frame=29717 fps= 25 q=19.0 size=  420802kB time=00:19:47.80 bitrate=2902.2kbits/s speed=0.999x


  


  Is it posible ?
Thank you