[FFmpeg-trac] #2995(undetermined:new): flic: deadlock with forced codec

FFmpeg trac at avcodec.org
Wed Sep 25 20:58:33 CEST 2013


#2995: flic: 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/V-codecs/MVI2/real-3.avi

 {{{
 (gdb) r -vcodec flic -threads 1 -i v/real-3.avi -an -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 -vcodec flic
 -threads 1 -i v/real-3.avi -an -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
 Guessed Channel Layout for  Input Stream #0.1 : mono
 Input #0, avi, from 'v/real-3.avi':
   Duration: 00:00:25.76, start: 0.000000, bitrate: 1628 kb/s
     Stream #0:0: Video: flic ([0][2]i2 / 0x32690200), pal8, 320x236, 14.99
 tbr, 14.99 tbn, 14.99 tbc
     Metadata:
       title           : Motion Pixels MVI2 Codec -- Video #1
     Stream #0:1: Audio: pcm_u8 ([1][0][0][0] / 0x0001), 11025 Hz, mono,
 u8, 88 kb/s
     Metadata:
       title           : Motion Pixels MVI2 Codec -- Audio #1
 [New Thread 0xb7df8b70 (LWP 30737)]
 [New Thread 0xb75f8b70 (LWP 30756)]
 [New Thread 0xb6df8b70 (LWP 30757)]
 [New Thread 0xb65f8b70 (LWP 30758)]
 [New Thread 0xb5df8b70 (LWP 30759)]
 [New Thread 0xb55f8b70 (LWP 30760)]
 [New Thread 0xb4df8b70 (LWP 30761)]
 [New Thread 0xb45f8b70 (LWP 30762)]
 [New Thread 0xb3df8b70 (LWP 30763)]
 Output #0, null, to 'pipe:':
   Metadata:
     encoder         : Lavf55.18.100
     Stream #0:0: Video: rawvideo, pal8, 320x236, q=2-31, 200 kb/s, 90k
 tbn, 14.99 tbc
     Metadata:
       title           : Motion Pixels MVI2 Codec -- Video #1
 Stream mapping:
   Stream #0:0 -> #0:0 (flic -> rawvideo)
 Press [q] to stop, [?] for help
 [flic @ 0x9115700] Unrecognized chunk type: 0
     Last message repeated 2038 times
 [null @ 0x911aa40] Encoder did not produce proper pts, making some up.
 [flic @ 0x9115700] Invalid chunk_size = 4164419813 > frame_size = 36024
 [flic @ 0x9115700] Unrecognized chunk type: 256
 [flic @ 0x9115700] Invalid chunk_size = 3670479 > frame_size = 46276
 [flic @ 0x9115700] Unrecognized chunk type: 35712
 [flic @ 0x9115700] Processed FLI chunk where chunk size = 46712 and final
 chunk ptr = 16
 [flic @ 0x9115700] Invalid chunk_size = 1079246592 > frame_size = 744
 [flic @ 0x9115700] Unrecognized chunk type: 31230
 [flic @ 0x9115700] Invalid chunk_size = 4164420085 > frame_size = 49768
 [flic @ 0x9115700] Unrecognized chunk type: 256
 [flic @ 0x9115700] Unrecognized chunk type: 0
     Last message repeated 128855 times
 [flic @ 0x9115700] Unrecognized chunk type: 0:00.53 bitrate=N/A
     Last message repeated 64427 times
 [flic @ 0x9115700] Unrecognized chunk type: 0:00.60 bitrate=N/A
     Last message repeated 64427 times
 [flic @ 0x9115700] Unrecognized chunk type: 0:00.66 bitrate=N/A
     Last message repeated 52927 times
 Program received signal SIGINT, Interrupt.
 0xb7ef9941 in write () at ../sysdeps/unix/syscall-template.S:82
 82      ../sysdeps/unix/syscall-template.S: No such file or directory.
 (gdb) bt
 #0  0xb7ef9941 in write () at ../sysdeps/unix/syscall-template.S:82
 #1  0xb7ea06c4 in _IO_new_file_write (f=0xb7f7e560, data=0xbfffbab0, n=38)
     at fileops.c:1276
 #2  0xb7ea036f in new_do_write (fp=0xb7f7e560,
     data=0xbfffbab0 "    Last message repeated 52927 times\r\r", to_do=38)
     at fileops.c:530
 #3  0xb7ea0616 in _IO_new_file_xsputn (f=0xb7f7e560, data=0xbfffbab0,
 n=38)
     at fileops.c:1370
 #4  0xb7e786a8 in buffered_vfprintf (s=0xb7f7e560, format=<optimized out>,
     args=<optimized out>) at vfprintf.c:2310
 #5  0xb7e73833 in _IO_vfprintf_internal (s=0xb7f7e560,
     format=0x8a5f9e4 "    Last message repeated %d times\r",
     ap=0xbfffe148 "\277", <incomplete sequence \316>) at vfprintf.c:1309
 #6  0xb7e7d8df in __fprintf (stream=0xb7f7e560,
     format=format at entry=0x8a5f9e4 "    Last message repeated %d times\r")
     at fprintf.c:33
 #7  0x0886df3e in av_log_default_callback (ptr=0x9115700, level=16,
     fmt=0x8933dcf "Unrecognized chunk type: %d\n", vl=0xbffff1ac "")
     at libavutil/log.c:236
 #8  0x0886e192 in av_vlog (vl=0xbffff1ac "",
     fmt=0x8933dcf "Unrecognized chunk type: %d\n", level=<optimized out>,
     avcl=0x9115700) at libavutil/log.c:272
 #9  av_log (avcl=avcl at entry=0x9115700, level=<optimized out>,
 level at entry=16,
 ---Type <return> to continue, or q <return> to quit---
     fmt=fmt at entry=0x8933dcf "Unrecognized chunk type: %d\n")
     at libavutil/log.c:265
 #10 0x0834b35f in flic_decode_frame_8BPP (buf_size=56, buf=0x911c8a0
 "\003",
     got_frame=0xbffff4d4, data=0x9117080, avctx=0x9115700)
     at libavcodec/flicvideo.c:440
 #11 flic_decode_frame (avctx=0x9115700, data=0x9117080,
 got_frame=0xbffff4d4,
     avpkt=0xbffff278) at libavcodec/flicvideo.c:772
 #12 0x0867a55e in avcodec_decode_video2 (avctx=0x9115700,
     picture=picture at entry=0x9117080,
     got_picture_ptr=got_picture_ptr at entry=0xbffff4d4,
     avpkt=avpkt at entry=0xbffff720) at libavcodec/utils.c:1995
 #13 0x080b394d in decode_video (ist=ist at entry=0x91173a0,
     pkt=pkt at entry=0xbffff720, got_output=got_output at entry=0xbffff4d4)
     at ffmpeg.c:1668
 #14 0x080b786a in output_packet (pkt=0xbffff6b8, ist=0x91173a0)
     at ffmpeg.c:1866
 #15 process_input (file_index=2) at ffmpeg.c:3089
 #16 0x080a3043 in transcode_step () at ffmpeg.c:3185
 #17 transcode () at ffmpeg.c:3237
 #18 main (argc=<optimized out>, argv=<optimized out>) at ffmpeg.c:3415
 (gdb)
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2995>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker


More information about the FFmpeg-trac mailing list