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• doc/filters/find_rect : extend documentation

  26 mars 2023, par Stefano Sabatini

  doc/filters/find_rect : extend documentation
  Document metadata entries set by the filter, extend and clarify
  
  options, add additional example showing how to extract the generated
  
  data.
  Address issue :
  
  http://trac.ffmpeg.org/ticket/8766
  

  • [DH] doc/filters.texi

• How to make ffmpeg exit when Input is broken

  21 décembre 2016, par APIS

  I have written a bash script to keep a ffmpeg command up and running

  #!/bin/bash
  
  while :
  
      do
  
  
  
          echo `ffmpeg -re -i http://domain.com/index400.m3u8 -vcodec copy -acodec copy -f mpegts udp://127.0.0.1:10000?pkt_size=1316`
  
  done

  The problem is, sometimes the input is broken, yet ffmpeg does not exit when that happens so that it is restarted by the above script. Instead what happens is the same process is kept running eventhough it is not transferring any packet to the UDP address (output). And I need to manually go into the terminal and kill it (kill -9 #processID)

  I need a way to make ffmpeg kill its own process whenever the input is broken.

  Appreciate your help.

• FFMPEG SRT streaming and HLS last segment putting delay [closed]

  6 novembre 2024, par Senya Marks

  I use the following command to run ffmpeg streaming with SRT (https://github.com/Haivision/srt) and HLS source :

  


  ffmpeg -i srt://{srt_url} -vcodec libx264 -preset veryfast -acodec aac -f hls -hls_time 4 -method PUT {uploader_url}


  


  This is cutting stream into .ts and update .m3u8 files at a certain interval.

  


  When I stop the stream, the latest segment files (.ts, .m3u8) are sent to uploader_url, but only after the SRT discards the connection (set in https://github.com/Edward-Wu/srt-live-server/wiki/Directives#idle_streams_timeout)

  


  I'm attaching a chunk of ffmpeg log where file stream2.ts was opened for writing after all streams finished :

  


  ...
[AVIOContext @ 0x11e705da0] Statistics: 738652 bytes written, 0 seeks, 23 writeouts
[hls @ 0x104513bb0] Opening 'http://127.0.0.1/api/streams/stream.m3u8' for writing
[http @ 0x600002e24000] Setting default whitelist 'http,https,tls,rtp,tcp,udp,crypto,httpproxy,data'
[tcp @ 0x60000352c280] Original list of addresses:
[tcp @ 0x60000352c280] Address 127.0.0.1
[tcp @ 0x60000352c280] Interleaved list of addresses:
[tcp @ 0x60000352c280] Address 127.0.0.1
[tcp @ 0x60000352c280] Starting connection attempt to 127.0.0.1
[tcp @ 0x60000352c280] Successfully connected to 127.0.0.1
[http @ 0x600002e24000] request: PUT /api/streams/stream.m3u8 HTTP/1.1
Transfer-Encoding: chunked
User-Agent: Lavf/61.7.100
Accept: */*
Connection: close
Host: 127.0.0.1
Icy-MetaData: 1


EXT-X-MEDIA-SEQUENCE:0
...
[aost#0:1/aac @ 0x104451d60] Terminating thread with return code 0 (success)
[out#0/hls @ 0x600002e20000] sq: 0 EOF
[out#0/hls @ 0x600002e20000] sq: finish queue
[vf#0:0 @ 0x600002a0c1e0] Terminating thread with return code 0 (success)
[libx264 @ 0x104412220] frame= 568 QP=29.00 NAL=0 Slice:B Poc:42  I:0    P:0    SKIP:3600 size=35 bytes
...
[vost#0:0/libx264 @ 0x104514280] Terminating thread with return code 0 (success)
[out#0/hls @ 0x600002e20000] All streams finished
[out#0/hls @ 0x600002e20000] Terminating thread with return code 0 (success)
[hls @ 0x104513bb0] Opening 'http://127.0.0.1/api/streams/stream2.ts' for writing
[http @ 0x600002e24000] Setting default whitelist 'http,https,tls,rtp,tcp,udp,crypto,httpproxy,data'
[tcp @ 0x60000352c200] Original list of addresses:
[tcp @ 0x60000352c200] Address 127.0.0.1
[tcp @ 0x60000352c200] Interleaved list of addresses:
[tcp @ 0x60000352c200] Address 127.0.0.1
[tcp @ 0x60000352c200] Starting connection attempt to 127.0.0.1
[tcp @ 0x60000352c200] Successfully connected to 127.0.0.1
[http @ 0x600002e24000] request: PUT /api/streams/stream.ts HTTP/1.1
Transfer-Encoding: chunked
User-Agent: Lavf/61.7.100
Accept: */*
Connection: close
Host: 127.0.0.1
Icy-MetaData: 1


[AVIOContext @ 0x11e6046a0] Statistics: 292528 bytes written, 0 seeks, 9 writeouts
[hls @ 0x104513bb0] Opening 'http://127.0.0.1/api/streams/stream.m3u8' for writing
[http @ 0x600002e08000] Setting default whitelist 'http,https,tls,rtp,tcp,udp,crypto,httpproxy,data'
[tcp @ 0x600003508000] Original list of addresses:
[tcp @ 0x600003508000] Address 127.0.0.1
[tcp @ 0x600003508000] Interleaved list of addresses:
[tcp @ 0x600003508000] Address 127.0.0.1
[tcp @ 0x600003508000] Starting connection attempt to 127.0.0.1
[tcp @ 0x600003508000] Successfully connected to 127.0.0.1
[http @ 0x600002e08000] request: PUT /api/streams/stream.m3u8 HTTP/1.1
Transfer-Encoding: chunked
User-Agent: Lavf/61.7.100
Accept: */*
Connection: close
Host: 127.0.0.1
Icy-MetaData: 1


EXT-X-MEDIA-SEQUENCE:0
[AVIOContext @ 0x11e6046a0] Statistics: 188 bytes written, 0 seeks, 1 writeouts
[out#0/hls @ 0x600002e20000] Output file #0 (http://127.0.0.1/api/streams/stream.m3u8):
[out#0/hls @ 0x600002e20000]   Output stream #0:0 (video): 606 frames encoded; 606 packets muxed (1658371 bytes); 
[out#0/hls @ 0x600002e20000]   Output stream #0:1 (audio): 940 frames encoded (962560 samples); 941 packets muxed (5714 bytes); 
[out#0/hls @ 0x600002e20000]   Total: 1547 packets (1664085 bytes) muxed
[out#0/hls @ 0x600002e20000] video:1620KiB audio:6KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: unknown
frame=  606 fps= 24 q=-1.0 Lsize=N/A time=00:00:20.05 bitrate=N/A dup=3 drop=0 speed=0.805x    
[libx264 @ 0x104412220] frame I:4     Avg QP:16.30  size:111883
[libx264 @ 0x104412220] frame P:228   Avg QP:21.27  size:  5200
[libx264 @ 0x104412220] frame B:374   Avg QP:22.11  size:    66
[libx264 @ 0x104412220] consecutive B-frames:  7.8% 27.7%  6.4% 58.1%
[libx264 @ 0x104412220] mb I  I16..4: 31.8% 13.1% 55.2%
[libx264 @ 0x104412220] mb P  I16..4:  0.6%  1.3%  1.2%  P16..4: 13.0%  1.6%  0.8%  0.0%  0.0%    skip:81.6%
[libx264 @ 0x104412220] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.5%  0.0%  0.0%  direct: 0.1%  skip:99.4%  L0:61.6% L1:37.6% BI: 0.8%
[libx264 @ 0x104412220] 8x8 transform intra:31.6% inter:36.3%
[libx264 @ 0x104412220] coded y,uvDC,uvAC intra: 68.0% 70.6% 46.0% inter: 1.6% 1.9% 0.1%
[libx264 @ 0x104412220] i16 v,h,dc,p: 59% 22% 14%  5%
[libx264 @ 0x104412220] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 13% 33% 24%  3%  5%  3%  5%  4%  9%
[libx264 @ 0x104412220] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 14% 28% 16%  4%  9%  5%  7%  7% 10%
[libx264 @ 0x104412220] i8c dc,h,v,p: 49% 29% 11% 11%
[libx264 @ 0x104412220] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x104412220] kb/s:656.51
[aac @ 0x104452030] Qavg: 65536.000
[in#0/mpegts @ 0x60000272c000] Input file #0 (srt://127.0.0.1:9090/?streamid=output/live/81adfd9dde3e):
[in#0/mpegts @ 0x60000272c000]   Input stream #0:0 (video): 603 packets read (3683249 bytes); 603 frames decoded; 0 decode errors; 
[in#0/mpegts @ 0x60000272c000]   Input stream #0:1 (audio): 940 packets read (407647 bytes); 940 frames decoded; 0 decode errors (962560 samples); 
[in#0/mpegts @ 0x60000272c000]   Total: 1543 packets (4090896 bytes) demuxed
[AVIOContext @ 0x11f904140] Statistics: 4438868 bytes read, 0 seeks


  


  I tried to use output file instead of -method PUT and -flush-packets 1, but it didn't help.

  


  Is it possible to send the latest segment files before the SRT closes the stream connection ?