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• ffmpeg HTTP LIVE STREAMING remove old segments [closed]

  3 mars 2024, par k961

  Hello i Have a Live HTTP stream input for ffmpeg 
i want to create HLS streaming im using ffmpeg to do this

  



  ffmpeg -i http://127.0.0.1:4242/bysid/7275 -map 0 -codec:v libx264 -codec:a copy -f ssegment -segment_list playlist.m3u8 -segment_list_type hls -segment_list_size 10 -segment_list_flags +live -segment_time 10 out%03d.ts


  



  i works fine i just want to delete the old segmens that are not shown in playlist.m3u8

  



  segment_list_size 10


  



  this will keep the last 10 in the playlist file i want to keep only these files on hard disk

  


• ffmpeg live streaming for twitch has audio delay

  8 avril 2019, par ILoveCake

  I am relatively new to ffmpeg and live streaming.
  Trying to overlay some videos and an audio stream.
  One of the audio streams is delayed for about 2 seconds.

  Here are the details :

  stream 0 : video : a static background image

  stream 1 : video : an area of the screen recorded

  stream 2 : video : webcam video

  stream 3 : audio : webcam audio

  AREA_X=1024; AREA_Y=576; OFFSET_X=110; OFFSET_Y=145
  
  
  
  ffmpeg \
  
    -async 1 -vsync 1 \ 
  
    -loop 1 -i /home/helmi/Documents/Streaming.Chess.png \
  
    -thread_queue_size 512 -f x11grab -s ${AREA_X}x${AREA_Y} -framerate 25 -async 1 -vsync 1 -i :0.0+${OFFSET_X},${OFFSET_Y} \
  
    -thread_queue_size 512 -f v4l2 -framerate 25 -video_size 160x120 -i /dev/video0 \
  
    -thread_queue_size 512 -f pulse -ac 2 -ar 48000 -i default \
  
    -filter_complex \
  
    "color=0x336699cc:1024x64, drawtext=textfile=/home/helmi/Documents/Streaming.Chess.txt:fontfile=/home/helmi/.fonts/PersonalUse_Clipper_Script_fat.ttf:x=10:y=16:fontsize=40:fontcolor=white [bottom]; \
  
     [1:v]scale=960:-1,setpts=PTS-STARTPTS [a]; \
  
     [0:v]setpts=PTS-STARTPTS [0v]; \
  
     [0v][a]overlay=15:15 [b]; \
  
     [b][2:v]overlay=(W-w):0 [c]; \
  
     [c][bottom]overlay=0:H-64 [video]" \
  
     -map "[video]" -map "3:a" \
  
      -async 1 -vsync 1 \ 
  
      -c:v libx264 -b:v 500k -maxrate 500k -bufsize 1000k -framerate 25 -crf 17 -preset superfast -pix_fmt yuv420p -tune zerolatency \
  
        -force_key_frames "expr:gte(t,n_forced*2)" \
  
      -c:a aac -b:a 256k -ac 2 -af "aresample=async=1" \
  
    -f flv rtmp://live-vie.twitch.tv/app/...

  Am I missing something here ? Any help is appreciated.

• Fast Video Streaming and Upload Android

  6 avril 2016, par vminind

  Fast Streaming & Uploading Videos On Mobile Apps with AWS S3

  Im developing a app witch has Android, iOS Clients were users can upload videos and photos and view as news feed. I store my video file on Amazone s3. Video length is limited to 30sec.

  When user is uploading 30 sec video from their gallery there are some high quality videos witch is even exceed 100MB so those video files take ages to upload. So i tried to convert them before upload using ffmpeg-android library but it also take almost same amount of time to convert the file so it seems this solution also point less. (convert in the scene reducing the video resolution and frame rate)

  Im using ExoPlayer to play videos

  Note : Videos uploading from iOS are not that huge files.

  I want videos to upload fast and stream fast. Its big help if anyone can share their thoughts on this.