[FFmpeg-user] hls and input http stream changes problem

[Michal Hajek]

Hi,
I need to generate one endless  hls stream from endless input http stream.
The input http stream is made from a few input files in a loop (using VLC
3.0.8).

The ffmpeg command:

.\ffmpeg -i http://10.200.100.79:8024 -c:v libx264 -crf 25 -preset veryfast
 ^
     -tune fastdecode  -hls_allow_cache 0  ^
     -c:a aac  -filter:a "volume=0.10" -f hls  -hls_segment_type  fmp4 ^
     -hls_flags delete_segments+discont_start+omit_endlist ^
     -g 25 -sc_threshold 0 stream.m3u8

And the output is:
.....
[hls @ 066e6d40] Opening 'stream0.m4s' for writing57 bitrate=N/A speed=5.16x
[hls @ 066e6d40] Opening 'stream.m3u8.tmp' for writing
[hls @ 066e6d40] Opening 'stream1.m4s' for writing
[hls @ 066e6d40] Opening 'stream.m3u8.tmp' for writing
[hls @ 066e6d40] Opening 'stream2.m4s' for writing63 bitrate=N/A speed=4.42x
[hls @ 066e6d40] Opening 'stream.m3u8.tmp' for writing
[mp4 @ 084d6180] Application provided duration: -1 / timestamp: 288379 is
out of range for mov/mp4 format
[hls @ 066e6d40] Opening 'stream3.m4s' for writing46 bitrate=N/A speed= 2.5x
[hls @ 066e6d40] Opening 'stream.m3u8.tmp' for writing
[hls @ 066e6d40] Opening 'stream4.m4s' for writing34 bitrate=N/A speed=1.96x
[hls @ 066e6d40] Opening 'stream.m3u8.tmp' for writing
[hls @ 066e6d40] Opening 'stream5.m4s' for writing73 bitrate=N/A speed=1.67x
[hls @ 066e6d40] Opening 'stream.m3u8.tmp' for writing
[hls @ 066e6d40] Opening 'stream6.m4s' for writing41 bitrate=N/A speed=1.55x
[hls @ 066e6d40] Opening 'stream.m3u8.tmp' for writing
[hls @ 066e6d40] Opening 'stream7.m4s' for writing76 bitrate=N/A speed=1.42x
[hls @ 066e6d40] Opening 'stream.m3u8.tmp' for writing
[hls @ 066e6d40] Opening 'stream8.m4s' for writing68 bitrate=N/A speed=1.37x
[hls @ 066e6d40] Opening 'stream.m3u8.tmp' for writing
[hls @ 066e6d40] Opening 'stream9.m4s' for writing37 bitrate=N/A speed=1.33x
[hls @ 066e6d40] Opening 'stream.m3u8.tmp' for writing
[hls @ 066e6d40] Opening 'stream10.m4s' for writing9 bitrate=N/A speed=1.29x
[hls @ 066e6d40] Opening 'stream.m3u8.tmp' for writing
[hls @ 066e6d40] Opening 'stream11.m4s' for writing4 bitrate=N/A speed=1.26x
[hls @ 066e6d40] Opening 'stream.m3u8.tmp' for writing
[hls @ 066e6d40] Opening 'stream12.m4s' for writing7 bitrate=N/A speed=1.24x
[hls @ 066e6d40] Opening 'stream.m3u8.tmp' for
writing                                             <---- so far so good,
but here VLC starts streaming of next file
[mpegts @ 003d0200] New audio stream 0:2 at pos:12504256 and
DTS:62584.9s23x     <---- ffmpeg detects change in input stream
[mpegts @ 003d0200] New video stream 0:3 at pos:12505760 and
DTS:62585s1.21x     <---- but stops creating hls files
[mpegts @ 003d0200] New audio stream 0:4 at pos:14497432 and
DTS:62595.7s835x   <--- here VLC starts streamig next file
[mpegts @ 003d0200] New video stream 0:5 at pos:14508336 and
DTS:62595.7s          <--- still no new hls files
[mpegts @ 003d0200] New audio stream 0:6 at pos:20390856 and
DTS:62612.9s578x    <--- here VLC starts streamig next file
[mpegts @ 003d0200] New video stream 0:7 at pos:20401760 and
DTS:62613.3s554x      <---- I pressed CTRL-C in ffmpeg
[hls @ 066e6d40] Opening 'stream13.m4s' for writing3 bitrate=N/A
speed=0.508x          <---- ffmpeg starts correct shutdown
[hls @ 066e6d40] Opening 'stream.m3u8.tmp' for writing
[hls @ 066e6d40] Opening 'stream14.m4s' for writing
[hls @ 066e6d40] Opening 'stream.m3u8.tmp' for writing
frame=  704 fps= 13 q=-1.0 Lsize=N/A time=00:00:28.17 bitrate=N/A
speed=0.504x
video:3572kB audio:454kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: unknown
[libx264 @ 003db640] frame I:29    Avg QP:22.27  size: 33274
[libx264 @ 003db640] frame P:459   Avg QP:25.30  size:  5259
[libx264 @ 003db640] frame B:216   Avg QP:28.36  size:  1286
[libx264 @ 003db640] consecutive B-frames: 51.8% 15.6% 18.3% 14.2%
[libx264 @ 003db640] mb I  I16..4: 11.6% 45.7% 42.7%
[libx264 @ 003db640] mb P  I16..4:  2.9%  9.9%  0.9%  P16..4: 29.2%  8.5%
 2.3%  0.0%  0.0%    skip:46.3%
[libx264 @ 003db640] mb B  I16..4:  0.5%  1.8%  0.0%  B16..8:  8.8%  2.5%
 0.3%  direct: 3.6%  skip:82.5%  L0:43.0% L1:36.5% BI:20.5%
[libx264 @ 003db640] 8x8 transform intra:64.7% inter:54.9%
[libx264 @ 003db640] coded y,uvDC,uvAC intra: 57.7% 53.5% 13.4% inter: 8.6%
6.9% 0.3%
[libx264 @ 003db640] i16 v,h,dc,p: 38% 37% 15% 10%
[libx264 @ 003db640] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 25% 24% 35%  2%  3%  3%
 2%  3%  4%
[libx264 @ 003db640] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 21% 11%  6%  7%  8%
 7%  7%  7%
[libx264 @ 003db640] i8c dc,h,v,p: 43% 26% 24%  7%
[libx264 @ 003db640] kb/s:1038.85
[aac @ 066c0a40] Qavg: 9562.674
Exiting normally, received signal 2.

What parameters make ffmpeg to accept all input streams?

Thanks, Michal