[FFmpeg-trac] #1456(undetermined:new): video will not stream

FFmpeg trac at avcodec.org
Sun Jun 17 00:15:19 CEST 2012


#1456: video will not stream
-------------------------------------+-------------------------------------
             Reporter:  elliott      |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
      I am trying to stream a short video in raw format from a server at
 San Diego State University.        However, I am getting a segmentation
 fault when I run the command line that I have printed out below.  This
 problem occurred while running the most recent release of ffmpeg.

 How to reproduce:
      The command line used was:
 ffmpeg/ffmpeg -r 15 -s 320x240 -f rawvideo -i pipe:
 http://marconi.sdsu.edu:809\
 0/feed1.ffm < testvideo_1000f.raw

 Below is the console print out using the -v 9 -loglevel 99 flags and also
 with gdb running:
 {{{
 53 [volta]/home/student/elliott> ffmpeg/ffmpeg -v 9 -loglevel 99 -r 15 -s
 320x240 -f rawvideo -i pipe: http://marconi.sdsu.edu:8090/feed1.ffm <
 testvideo_1000f.raw
 ffmpeg version N-41632-g2b1fc56 Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Jun 15 2012 16:41:47 with gcc 4.1.2 20080704 (Red Hat 4.1.2-51)
   configuration:
   libavutil      51. 58.100 / 51. 58.100
   libavcodec     54. 25.100 / 54. 25.100
   libavformat    54.  6.101 / 54.  6.101
   libavdevice    54.  0.100 / 54.  0.100
   libavfilter     2. 80.100 /  2. 80.100
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0. 15.100 /  0. 15.100
 [rawvideo @ 0x1c4d2340] File position before avformat_find_stream_info()
 is 0
 [rawvideo @ 0x1c4d2340] All info found
 [rawvideo @ 0x1c4d2340] Estimating duration from bitrate, this may be
 inaccurate
 [rawvideo @ 0x1c4d2340] File position after avformat_find_stream_info() is
 115200
 Input #0, rawvideo, from 'pipe:':
   Duration: N/A, start: 0.000000, bitrate: N/A
     Stream #0:0, 1, 1/15: Video: rawvideo (I420 / 0x30323449), yuv420p,
 320x240, 1/15, 15 tbr, 15 tbn, 15 tbc
 [ffm @ 0x1c4dc7a0] Format ffm probed with size=2048 and score=101
 Segmentation fault
 54 [volta]/home/student/elliott> gdb ffmpeg/ffmpeg_g
 GNU gdb (GDB) Red Hat Enterprise Linux (7.0.1-37.el5_7.1)
 Copyright (C) 2009 Free Software Foundation, Inc.
 License GPLv3+: GNU GPL version 3 or later
 <http://gnu.org/licenses/gpl.html>
 This is free software: you are free to change and redistribute it.
 There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
 and "show warranty" for details.
 This GDB was configured as "x86_64-redhat-linux-gnu".
 For bug reporting instructions, please see:
 <http://www.gnu.org/software/gdb/bugs/>...
 Reading symbols from /home/student/elliott/ffmpeg/ffmpeg_g...done.
 (gdb) run -r 15 -s 320x240 -f rawvideo -i pipe:
 http://marconi.sdsu.edu:8090/feed1.ffm < testvideo_1000f.raw
 Starting program: /home/student/elliott/ffmpeg/ffmpeg_g -r 15 -s 320x240
 -f rawvideo -i pipe: http://marconi.sdsu.edu:8090/feed1.ffm <
 testvideo_1000f.raw
 warning: no loadable sections found in added symbol-file system-supplied
 DSO at 0x2aaaaaaab000
 [Thread debugging using libthread_db enabled]
 ffmpeg version N-41632-g2b1fc56 Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Jun 15 2012 16:41:47 with gcc 4.1.2 20080704 (Red Hat 4.1.2-51)
   configuration:
   libavutil      51. 58.100 / 51. 58.100
   libavcodec     54. 25.100 / 54. 25.100
   libavformat    54.  6.101 / 54.  6.101
   libavdevice    54.  0.100 / 54.  0.100
   libavfilter     2. 80.100 /  2. 80.100
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0. 15.100 /  0. 15.100
 [rawvideo @ 0x13fa340] Estimating duration from bitrate, this may be
 inaccurate
 Input #0, rawvideo, from 'pipe:':
   Duration: N/A, start: 0.000000, bitrate: N/A
     Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 320x240, 15
 tbr, 15 tbn, 15 tbc

 Program received signal SIGSEGV, Segmentation fault.
 0x000000000040c519 in read_ffserver_streams (optctx=0x7fffffffc8a0,
     filename=0x7fffffffd091 "http://marconi.sdsu.edu:8090/feed1.ffm")
     at ffmpeg.c:4874
 4874            ost   = new_output_stream(o, s, codec->type, -1);
 (gdb) quit
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1456>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker


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