[FFmpeg-trac] #2994(undetermined:new): mlp: deadlock with forced codec

FFmpeg trac at avcodec.org
Wed Sep 25 20:56:53 CEST 2013


#2994: mlp: deadlock with forced codec
-------------------------------------+-------------------------------------
               Reporter:  ami_stuff  |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  normal     |              Component:
                Version:             |  undetermined
  unspecified                        |               Keywords:
             Blocked By:             |               Blocking:
Reproduced by developer:  0          |  Analyzed by developer:  0
-------------------------------------+-------------------------------------
 http://samples.mplayerhq.hu/A-codecs/caf/audio1.caf

 (the last part of deadlocks found by me)

 {{{
 (gdb) r -acodec mlp -threads 1 -i v/audio1.caf -vn -f null -
 The program being debugged has been started already.
 Start it from the beginning? (y or n) y

 Starting program: /media/sdb1/ffmpeg-HEAD-93439e8/ffmpeg_g -acodec mlp
 -threads 1 -i v/audio1.caf -vn -f null -
 [Thread debugging using libthread_db enabled]
 Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
 ffmpeg version 2.0-93439e8 Copyright (c) 2000-2013 the FFmpeg developers
   built on Sep 18 2013 23:23:15 with gcc 4.7 (Debian 4.7.2-5)
   configuration: --disable-yasm --enable-gpl --disable-ffprobe --disable-
 ffserver
   libavutil      52. 44.100 / 52. 44.100
   libavcodec     55. 31.101 / 55. 31.101
   libavformat    55. 18.100 / 55. 18.100
   libavdevice    55.  3.100 / 55.  3.100
   libavfilter     3. 86.101 /  3. 86.101
   libswscale      2.  5.100 /  2.  5.100
   libswresample   0. 17.103 /  0. 17.103
   libpostproc    52.  3.100 / 52.  3.100
 [mlp @ 0x91156c0] Stream parameters not seen; skipping frame.
     Last message repeated 46 times
 Program received signal SIGINT, Interrupt.
 0x0867890f in avcodec_get_frame_defaults (frame=0x9163e20)
     at libavcodec/utils.c:1001
 1001        memset(frame, 0, sizeof(AVFrame));
 (gdb) bt
 #0  0x0867890f in avcodec_get_frame_defaults (frame=0x9163e20)
     at libavcodec/utils.c:1001
 #1  0x08234e67 in try_decode_frame (st=st at entry=0x9115480,
     avpkt=avpkt at entry=0x9163da0, options=0x0) at libavformat/utils.c:2487
 #2  0x0823e691 in avformat_find_stream_info (ic=0x9114e80,
 options=0x9115aa0)
     at libavformat/utils.c:2936
 #3  0x080a66b5 in open_input_file (o=o at entry=0xbffff50c,
     filename=<optimized out>) at ffmpeg_opt.c:809
 #4  0x080a4ed7 in open_files (inout=inout at entry=0x88e725b "input",
     open_file=open_file at entry=0x80a62d0 <open_input_file>,
     l=<error reading variable: Unhandled dwarf expression opcode 0xfa>,
     l=<error reading variable: Unhandled dwarf expression opcode 0xfa>)
     at ffmpeg_opt.c:2494
 #5  0x080ad0e9 in ffmpeg_parse_options (argc=argc at entry=11,
     argv=argv at entry=0xbffff994) at ffmpeg_opt.c:2531
 #6  0x080a25da in main (argc=11, argv=0xbffff994) at ffmpeg.c:3393
 (gdb)
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2994>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker


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