[FFmpeg-trac] #1249(FFserver:new): FFServer HTTP/1.1 WAIT_FEED bug

FFmpeg trac at avcodec.org
Tue Apr 24 17:24:21 CEST 2012

#1249: FFServer HTTP/1.1 WAIT_FEED bug
             Reporter:  barhom       |                     Type:  defect
               Status:  new          |                 Priority:  critical
            Component:  FFserver     |                  Version:
             Keywords:  ffserver     |  unspecified
  WAIT_FEED                          |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
 Fully reproducible bug that only happens once "FileMaxSize" is reached.

 Below are ffserver configuration for a feed+stream.
 FFmpeg is started like this;

 ffmpeg -i INPUTMPEGTS http://localhost:8090/feed0.ffm

 This creates a stream that ffmpeg transcodes into h264+aac in a flv
 container and publishes it as http://localhost:8090/feed0.ffm
 The stream is then viewable/downloadable at

 Everything is working as expected and FFserver stats page shows that is is
 receiving data.
 However, once FileMaxSize is reached new clients that connect has about
 random chance of around 20-40% of getting the data, the other times the
 stream connects however with no data being received at the client

 When no data is being received the stats page in ffserver shows; HTTP/1.1
 WAIT_FEED for the client.

 Changing FileMaxSize to 100G would make the stream work for every client
 up until the file is 100G, then the same problems occurs.

 <Feed feed0.ffm>
 File /tmp/feed0.file
 FileMaxSize 5M

 <Stream feed0.flv>
 Format flv
 Feed feed0.ffm
 AVOptionVideo flags +global_header
 VideoCodec libx264
 VideoBitRate 900
 VideoFrameRate 25
 VideoSize 720x576
 AVOptionVideo coder 1
 AVOptionVideo flags +loop
 AVOptionVideo cmp +chroma
 AVOptionVideo partitions +parti8x8+parti4x4-partp8x8-partb8x8
 AVOptionVideo me_method dia
 AVOptionVideo subq 1
 AVOptionVideo me_range 16
 AVOptionVideo g 250
 AVOptionVideo keyint_min 25
 AVOptionVideo sc_threshold 40
 AVOptionVideo i_qfactor 0.71
 AVOptionVideo b_strategy 1
 AVOptionVideo qcomp 0.7
 AVOptionVideo qmin 10
 AVOptionVideo qmax 51
 AVOptionVideo qdiff 4
 AVOptionVideo bf 3
 AVOptionVideo refs 1
 AVOptionVideo directpred 1
 AVOptionVideo trellis 0
 #AVOptionVideo flags2 +bpyramid-mixed_refs+wpred+dct8x8+fastpskip-mbtree
 AVOptionVideo wpredp 0
 AVOptionVideo rc_lookahead 0
 AVOptionVideo deblockalpha 2
 AVOptionVideo deblockbeta 2
 AVOptionVideo threads 4

 #AVOptionVideo maxrate 2500

 AudioCodec libfaac
 AudioBitRate 96
 AudioChannels 2
 AudioSampleRate 48000
 AVOptionAudio flags +global_header

Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1249>
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