[FFmpeg-trac] #1068(undetermined:new): huffyuv enc: crash with very low resolution

FFmpeg trac at avcodec.org
Wed Mar 14 21:49:34 CET 2012


#1068: huffyuv enc: crash with very low resolution
-------------------------------------+-------------------------------------
             Reporter:  ami_stuff    |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 http://ffmpeg.org/trac/ffmpeg/attachment/ticket/1059/599.png

 -s 22x22 and up works ok

 (ffvhuff and flashsv2 crashes as well btw)

 {{{
 (gdb) r -i 599.png -s 20x20 -vcodec huffyuv out.avi
 Starting program: d:\mingw\msys\1.0\ffmpeg\ffmpeg_g.exe -i 599.png -s
 20x20 -vco
 dec huffyuv out.avi
 [New Thread 2920.0xb64]
 ffmpeg version 0.9.1.git Copyright (c) 2000-2012 the FFmpeg developers
   built on Mar 10 2012 16:15:15 with gcc 4.6.1
   configuration: --disable-yasm --disable-ffprobe
   libavutil      51. 42.100 / 51. 42.100
   libavcodec     54. 10.100 / 54. 10.100
   libavformat    54.  2.100 / 54.  2.100
   libavdevice    53.  4.100 / 53.  4.100
   libavfilter     2. 63.100 /  2. 63.100
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0.  7.100 /  0.  7.100
 Input #0, image2, from '599.png':
   Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
     Stream #0:0: Video: png, rgb24, 599x412, 25 tbr, 25 tbn, 25 tbc
 w:599 h:412 pixfmt:rgb24 tb:1/1000000 sar:0/1 sws_param:
 [scale @ 038712a0] w:599 h:412 fmt:rgb24 -> w:20 h:20 fmt:rgb24 flags:0x4
 Output #0, avi, to 'out.avi':
   Metadata:
     ISFT            : Lavf54.2.100
     Stream #0:0: Video: huffyuv (HFYU / 0x55594648), rgb24, 20x20, q=2-31,
 200 k
 b/s, 25 tbn, 25 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (png -> huffyuv)
 Press [q] to stop, [?] for help

 Program received signal SIGSEGV, Segmentation fault.
 0x009b3ae3 in diff_bytes_mmx (dst=0x388fad0 "", src1=0x386f613 "",
     src2=0x386f610 "", w=9) at libavcodec/x86/dsputilenc_mmx.c:826
 826         __asm__ volatile(
 (gdb) bt
 #0  0x009b3ae3 in diff_bytes_mmx (dst=0x388fad0 "", src1=0x386f613 "",
     src2=0x386f610 "", w=9) at libavcodec/x86/dsputilenc_mmx.c:826
 #1  0x0075057e in sub_left_prediction_rgb24 (blue=<synthetic pointer>,
     green=<synthetic pointer>, red=<synthetic pointer>, w=<optimized out>,
     src=0x386f5e3 "", dst=<optimized out>, s=<optimized out>)
     at libavcodec/huffyuv.c:202
 #2  encode_frame (avctx=0x386ab20, pkt=0x22db40, pict=0x22d9d8,
     got_packet=0x22dc0c) at libavcodec/huffyuv.c:1445
 #3  0x004f945d in avcodec_encode_video2 (avctx=0x386ab20, avpkt=0x22db40,
     frame=0x22d9d8, got_packet_ptr=0x22dc0c) at libavcodec/utils.c:1219
 #4  0x00405de0 in do_video_out (s=0x386a620, ost=0x3863320,
     in_picture=0x3890800, ist=<optimized out>) at ffmpeg.c:1619
 #5  0x00407d6c in transcode_video (pkt_pts=<optimized out>,
     got_output=<optimized out>, pkt=<optimized out>, ist=<optimized out>)
     at ffmpeg.c:2178
 #6  output_packet (ist=0x3871640, ost_table=0x3863320, nb_ostreams=1,
     pkt=0x22fb28) at ffmpeg.c:2270
 #7  0x0040bf3b in transcode (output_files=0x3871ac0, nb_output_files=1,
     input_files=0x3871700, nb_input_files=1) at ffmpeg.c:3082
 #8  0x0022ff48 in ?? ()
 Backtrace stopped: Not enough registers or memory available to unwind
 further
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1068>
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