[FFmpeg-trac] #6925(avformat:new): Dash demuxer does not stop after -t <timeout> expires

[FFmpeg]

#6925: Dash demuxer does not stop after -t <timeout> expires
----------------------------------+--------------------------------------
             Reporter:  tmm1      |                     Type:  defect
               Status:  new       |                 Priority:  important
            Component:  avformat  |                  Version:  git-master
             Keywords:  dash      |               Blocked By:
             Blocking:            |  Reproduced by developer:  0
Analyzed by developer:  0         |
----------------------------------+--------------------------------------
 '''Summary of the bug:'''

 When using `-t <timeout>` on an output being fed by a dash muxed input,
 the ffmpeg process does not stop when the timeout is reached. No output
 packets are created, but the input keeps reading until the source EOFs.

 '''How to reproduce:'''

 Below you can see that `time=00:00:01.96`, but fps and speed approach 0
 while the process keeps running and printing out "Opening segment-XX.m4s"

 {{{
 ./ffmpeg -f dash -i https://20skyfiregce-
 vimeo.akamaized.net/exp\=1513997557\~acl\=%2F150608819%2F%2A\~hmac\=66533877b715b5446be24c122d9727f64046feac273cd7557ef9a825316b41cd/150608819/video/606502191,606502196,606502193,606502192/master.mpd\?base64_init\=1
 -t 2 -c copy -f null /dev/null
 ffmpeg version N-89577-gcdd72a654d Copyright (c) 2000-2017 the FFmpeg
 developers
   built with Apple LLVM version 9.0.0 (clang-900.0.39.2)
   configuration: --prefix=/tmp/ffmpeg-master --enable-libxml2 --enable-
 shared --disable-static --disable-stripping
   libavutil      56.  6.100 / 56.  6.100
   libavcodec     58.  8.100 / 58.  8.100
   libavformat    58.  3.100 / 58.  3.100
   libavdevice    58.  0.100 / 58.  0.100
   libavfilter     7.  7.100 /  7.  7.100
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
 [dash @ 0x7fbf7a003400] Opening 'https://20skyfiregce-
 vimeo.akamaized.net/exp=1513997557~acl=%2F150608819%2F%2A~hmac=66533877b715b5446be24c122d9727f64046feac273cd7557ef9a825316b41cd/150608819/video/606502191/chop/segment-0.mp4'
 for reading
 [dash @ 0x7fbf7a003400] Could not read complete fragment.
 [dash @ 0x7fbf7a003400] Opening 'https://20skyfiregce-
 vimeo.akamaized.net/exp=1513997557~acl=%2F150608819%2F%2A~hmac=66533877b715b5446be24c122d9727f64046feac273cd7557ef9a825316b41cd/150608819/video/606502191/chop/segment-0.m4s'
 for reading
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fbf7b014a00] Found duplicated MOOV Atom.
 Skipped it
 [dash @ 0x7fbf7a003400] Opening 'https://20skyfiregce-
 vimeo.akamaized.net/exp=1513997557~acl=%2F150608819%2F%2A~hmac=66533877b715b5446be24c122d9727f64046feac273cd7557ef9a825316b41cd/150608819/video/606502191/chop/segment-1.m4s'
 for reading
 Input #0, dash, from 'https://20skyfiregce-
 vimeo.akamaized.net/exp=1513997557~acl=%2F150608819%2F%2A~hmac=66533877b715b5446be24c122d9727f64046feac273cd7557ef9a825316b41cd/150608819/video/606502191,606502196,606502193,606502192/master.mpd?base64_init=1':
   Duration: 00:14:59.00, start: 0.000000, bitrate: 0 kb/s
   Program 0
     Stream #0:0: Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv,
 bt470bg/smpte170m/bt470bg), 640x360 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98
 tbr, 24k tbn, 47.95 tbc
   No Program
     Stream #0:1: Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp
 Output #0, null, to '/dev/null':
   Metadata:
     encoder         : Lavf58.3.100
     Stream #0:0: Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv,
 bt470bg/smpte170m/bt470bg), 640x360 [SAR 1:1 DAR 16:9], q=2-31, 23.98 fps,
 23.98 tbr, 24k tbn, 24k tbc
     Stream #0:1: Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
   Stream #0:1 -> #0:1 (copy)
 Press [q] to stop, [?] for help
 [dash @ 0x7fbf7a003400] DTS 0 < 141141 out of order
 [https @ 0x7fbf7b809e00] Opening 'https://20skyfiregce-
 vimeo.akamaized.net/exp=1513997557~acl=%2F150608819%2F%2A~hmac=66533877b715b5446be24c122d9727f64046feac273cd7557ef9a825316b41cd/150608819/video/606502191/chop/segment-2.m4s'
 for reading
 [dash @ 0x7fbf7a003400] Opening 'https://20skyfiregce-
 vimeo.akamaized.net/exp=1513997557~acl=%2F150608819%2F%2A~hmac=66533877b715b5446be24c122d9727f64046feac273cd7557ef9a825316b41cd/150608819/video/606502191/chop/segment-2.m4s'
 for reading
 [https @ 0x7fbf7b809e00] Opening 'https://20skyfiregce-
 vimeo.akamaized.net/exp=1513997557~acl=%2F150608819%2F%2A~hmac=66533877b715b5446be24c122d9727f64046feac273cd7557ef9a825316b41cd/150608819/video/606502191/chop/segment-3.m4s'
 for reading
 [dash @ 0x7fbf7a003400] Opening 'https://20skyfiregce-
 vimeo.akamaized.net/exp=1513997557~acl=%2F150608819%2F%2A~hmac=66533877b715b5446be24c122d9727f64046feac273cd7557ef9a825316b41cd/150608819/video/606502191/chop/segment-3.m4s'
 for reading
 [https @ 0x7fbf7b809e00] Opening 'https://20skyfiregce-
 vimeo.akamaized.net/exp=1513997557~acl=%2F150608819%2F%2A~hmac=66533877b715b5446be24c122d9727f64046feac273cd7557ef9a825316b41cd/150608819/video/606502191/chop/segment-4.m4s'
 for reading
 [dash @ 0x7fbf7a003400] Opening 'https://20skyfiregce-
 vimeo.akamaized.net/exp=1513997557~acl=%2F150608819%2F%2A~hmac=66533877b715b5446be24c122d9727f64046feac273cd7557ef9a825316b41cd/150608819/video/606502191/chop/segment-4.m4s'
 for reading
 ...
 frame=   50 fps=0.4 q=-1.0 Lsize=N/A time=00:00:01.96 bitrate=N/A
 speed=0.0173x
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6925>
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