[FFmpeg-trac] #7332(undetermined:closed): ffmpeg hangs when converting some crafted MP4 videos to MOV/MP4

FFmpeg trac at avcodec.org
Tue Aug 7 01:45:24 EEST 2018


#7332: ffmpeg hangs when converting some crafted MP4 videos to MOV/MP4
-------------------------------------+-------------------------------------
             Reporter:  HongxuChen   |                    Owner:
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:
              Version:  git-master   |  undetermined
             Keywords:               |               Resolution:
             Blocking:               |  worksforme
Analyzed by developer:  0            |               Blocked By:
                                     |  Reproduced by developer:  0
-------------------------------------+-------------------------------------
Changes (by cehoyos):

 * status:  reopened => closed
 * resolution:   => worksforme
 * component:  ffmpeg => undetermined


Comment:

 {{{
 $ ffmpeg -i ./hang_1.mp4 -filter:v scale=360:-1 -c:a copy -f mp4 -y
 /dev/null
 ffmpeg version N-91571-gaa8e5ee Copyright (c) 2000-2018 the FFmpeg
 developers
   built with gcc 6.4.0 (GCC)
   configuration: --enable-gpl --enable-gnutls --enable-libxml2
   libavutil      56. 18.102 / 56. 18.102
   libavcodec     58. 22.100 / 58. 22.100
   libavformat    58. 17.101 / 58. 17.101
   libavdevice    58.  4.101 / 58.  4.101
   libavfilter     7. 26.100 /  7. 26.100
   libswscale      5.  2.100 /  5.  2.100
   libswresample   3.  2.100 /  3.  2.100
   libpostproc    55.  2.100 / 55.  2.100
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x4034680] overread end of atom 'stsd' by
 16121600 bytes
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x4034680] Found duplicated MOOV Atom. Skipped
 it
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x4034680] wrong sample count
 [h264 @ 0x4036100] error while decoding MB 0 3, bytestream 98
 [h264 @ 0x4036100] concealing 9 DC, 9 AC, 9 MV errors in I frame
 [h264 @ 0x4036100] error while decoding MB 0 3, bytestream -36
 [h264 @ 0x4036100] concealing 9 DC, 9 AC, 9 MV errors in P frame
 [h264 @ 0x4036100] error while decoding MB 0 3, bytestream -47
 [h264 @ 0x4036100] concealing 9 DC, 9 AC, 9 MV errors in B frame
 [h264 @ 0x4036100] error while decoding MB 0 3, bytestream -47
 [h264 @ 0x4036100] concealing 9 DC, 9 AC, 9 MV errors in B frame
 [h264 @ 0x4036100] no frame!
 [h264 @ 0x4036100] Invalid NAL unit size (4194306 > 21).
 [h264 @ 0x4036100] Error splitting the input into NAL units.
 [h264 @ 0x4036100] Invalid NAL unit 9, skipping.
 [h264 @ 0x4036100] no frame!
 Truncating packet of size 268435461 to 61161
 [h264 @ 0x4036100] Invalid NAL unit size (1718909296 > 61150).
 [h264 @ 0x4036100] Error splitting the input into NAL units.
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from './hang_1.mp4':
   Metadata:
     major_brand     : mp42
     minor_version   : 19529854
     compatible_brands: mp42isom
   Duration: 11:32:50.48, start: 0.083333, bitrate: 0 kb/s
     Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv422p(tv,
 GBR), 16x144 [SAR 1:1 DAR 1:9], SAR 1:32 DAR 1:288, 12 tbn, 24 tbc
 (default)
     Metadata:
       rotate          : 0
       creation_time   : 2014-11-14T07:34:24.000000Z
       handler_name    : dia?Handler
       encoder         : AVC Coding
     Side data:
       displaymatrix: rotation of -0.00 degrees
     Stream #0:1(eng): Data: none, SAR 1:32 DAR 0:0 (default)
     Metadata:
       rotate          : 0
       creation_time   : 2014-11-14T05:09:20.000000Z
       handler_name    : dia Handler
     Stream #0:2(eng): Data: none, SAR 1:32 DAR 0:0 (default)
     Metadata:
       rotate          : 0
       creation_time   : 2014-11-14T05:09:20.000000Z
       handler_name    : dia Handler
 Stream mapping:
   Stream #0:0 -> #0:0 (h264 (native) -> mpeg4 (native))
 Press [q] to stop, [?] for help
 [h264 @ 0x406f5c0] error while decoding MB 0 3, bytestream 98
 [h264 @ 0x406f5c0] concealing 9 DC, 9 AC, 9 MV errors in I frame
 [h264 @ 0x406fe00] error while decoding MB 0 3, bytestream -36
 [h264 @ 0x406fe00] concealing 9 DC, 9 AC, 9 MV errors in P frame
 [h264 @ 0x40aa100] error while decoding MB 0 3, bytestream -47
 [h264 @ 0x40aa100] concealing 9 DC, 9 AC, 9 MV errors in B frame
 [h264 @ 0x40ad0c0] error while decoding MB 0 3, bytestream -47
 [h264 @ 0x40ad0c0] concealing 9 DC, 9 AC, 9 MV errors in B frame
 [h264 @ 0x406db80] no frame!
 [h264 @ 0x41ab800] Invalid NAL unit size (4194306 > 21).
 [h264 @ 0x41ab800] Error splitting the input into NAL units.
 [h264 @ 0x406f5c0] Invalid NAL unit 5, skipping.
 [h264 @ 0x406f5c0] no frame!
 Output #0, mp4, to '/dev/null':
   Metadata:
     major_brand     : mp42
     minor_version   : 19529854
     compatible_brands: mp42isom
     encoder         : Lavf58.17.101
     Stream #0:0(eng): Video: mpeg4 (mp4v / 0x7634706D), yuv420p, 360x3240
 [SAR 1:32 DAR 1:288], q=2-31, 200 kb/s, 12288 tbn, 12 tbc (default)
     Metadata:
       encoder         : Lavc58.22.100 mpeg4
       creation_time   : 2014-11-14T07:34:24.000000Z
       handler_name    : dia?Handler
     Side data:
       cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
       displaymatrix: rotation of -0.00 degrees
 [h264 @ 0x406fe00] Invalid NAL unit size (1718909296 > 61150).
 [h264 @ 0x406fe00] Error splitting the input into NAL units.
 Error while decoding stream #0:0: Invalid data found when processing input
 More than 1000 frames duplicated
 Error while decoding stream #0:0: Invalid data found when processing input
 Error while decoding stream #0:0: Invalid data found when processing
 inputbits/s dup=65530 drop=2 speed=67.8x
     Last message repeated 1 times
 frame=65534 fps=813 q=1.6 Lsize=  106203kB time=01:31:01.08 bitrate=
 159.3kbits/s dup=65530 drop=3 speed=67.8x
 video:105923kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.264165%
 }}}
 {{{
 $ ffmpeg -i ./hang_2.mp4 -filter:v scale=360:-1 -c:a copy -f mp4 -y
 /dev/null
 ffmpeg version N-91571-gaa8e5ee Copyright (c) 2000-2018 the FFmpeg
 developers
   built with gcc 6.4.0 (GCC)
   configuration: --enable-gpl --enable-gnutls --enable-libxml2
   libavutil      56. 18.102 / 56. 18.102
   libavcodec     58. 22.100 / 58. 22.100
   libavformat    58. 17.101 / 58. 17.101
   libavdevice    58.  4.101 / 58.  4.101
   libavfilter     7. 26.100 /  7. 26.100
   libswscale      5.  2.100 /  5.  2.100
   libswresample   3.  2.100 /  3.  2.100
   libpostproc    55.  2.100 / 55.  2.100
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x409c680] stream 1, timescale not set
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x409c680] overread end of atom 'stsd' by
 16121600 bytes
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x409c680] Found duplicated MOOV Atom. Skipped
 it
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x409c680] wrong sample count
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x409c680] stream 2, timescale not set
 Truncating packet of size 268435461 to 5699
 [h264 @ 0x409e100] error while decoding MB 0 3, bytestream 98
 [h264 @ 0x409e100] concealing 9 DC, 9 AC, 9 MV errors in I frame
 [h264 @ 0x409e100] error while decoding MB 0 3, bytestream -36
 [h264 @ 0x409e100] concealing 9 DC, 9 AC, 9 MV errors in P frame
 [h264 @ 0x409e100] error while decoding MB 0 3, bytestream -47
 [h264 @ 0x409e100] concealing 9 DC, 9 AC, 9 MV errors in B frame
 [h264 @ 0x409e100] error while decoding MB 0 3, bytestream -47
 [h264 @ 0x409e100] concealing 9 DC, 9 AC, 9 MV errors in B frame
 [h264 @ 0x409e100] no frame!
 [h264 @ 0x409e100] error while decoding MB 0 8, bytestream -21
 [h264 @ 0x409e100] concealing 9 DC, 9 AC, 9 MV errors in P frame
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from './hang_2.mp4':
   Metadata:
     major_brand     : mp42
     minor_version   : 19529854
     compatible_brands: mp42isom
   Duration: 11:32:50.48, start: 0.083333, bitrate: 0 kb/s
     Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv422p(tv,
 GBR), 16x144 [SAR 1:1 DAR 1:9], SAR 1:32 DAR 1:288, 12 tbn, 24 tbc
 (default)
     Metadata:
       rotate          : 0
       creation_time   : 2014-11-14T07:34:24.000000Z
       handler_name    : dia?Handler
       encoder         : AVC Coding
     Side data:
       displaymatrix: rotation of -0.00 degrees
     Stream #0:1: Data: none (default)
     Metadata:
       rotate          : 0
     Stream #0:2: Data: none (default)
     Metadata:
       rotate          : 0
 Stream mapping:
   Stream #0:0 -> #0:0 (h264 (native) -> mpeg4 (native))
 Press [q] to stop, [?] for help
 [h264 @ 0x40aacc0] error while decoding MB 0 3, bytestream 98
 [h264 @ 0x40aacc0] concealing 9 DC, 9 AC, 9 MV errors in I frame
 [h264 @ 0x40fb3c0] error while decoding MB 0 3, bytestream -36
 [h264 @ 0x40fb3c0] concealing 9 DC, 9 AC, 9 MV errors in P frame
 [h264 @ 0x4101dc0] error while decoding MB 0 3, bytestream -47
 [h264 @ 0x4101dc0] concealing 9 DC, 9 AC, 9 MV errors in B frame
 [h264 @ 0x4177400] error while decoding MB 0 3, bytestream -47
 [h264 @ 0x4177400] concealing 9 DC, 9 AC, 9 MV errors in B frame
 [h264 @ 0x41aff00] no frame!
 [h264 @ 0x4205540] error while decoding MB 0 8, bytestream -21
 [h264 @ 0x4205540] concealing 9 DC, 9 AC, 9 MV errors in P frame
 [h264 @ 0x40aacc0] Invalid NAL unit 5, skipping.
 [h264 @ 0x40aacc0] no frame!
 Output #0, mp4, to '/dev/null':
   Metadata:
     major_brand     : mp42
     minor_version   : 19529854
     compatible_brands: mp42isom
     encoder         : Lavf58.17.101
     Stream #0:0(eng): Video: mpeg4 (mp4v / 0x7634706D), yuv420p, 360x3240
 [SAR 1:32 DAR 1:288], q=2-31, 200 kb/s, 12288 tbn, 12 tbc (default)
     Metadata:
       encoder         : Lavc58.22.100 mpeg4
       creation_time   : 2014-11-14T07:34:24.000000Z
       handler_name    : dia?Handler
     Side data:
       cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
       displaymatrix: rotation of -0.00 degrees
 [h264 @ 0x40fb3c0] Invalid NAL unit size (1718909296 > 5688).
 [h264 @ 0x40fb3c0] Error splitting the input into NAL units.
 Error while decoding stream #0:0: Invalid data found when processing input
 More than 1000 frames duplicated
 Error while decoding stream #0:0: Invalid data found when processing
 input8kbits/s dup=1114107 drop=2 speed=68.3x
     Last message repeated 1 times
 frame=1114112 fps=820 q=2.0 Lsize= 1805127kB time=25:47:22.58 bitrate=
 159.3kbits/s dup=1114107 drop=3 speed=68.3x
 video:1800384kB audio:0kB subtitle:0kB other streams:0kB global
 headers:0kB muxing overhead: 0.263452%
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7332#comment:5>
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