[FFmpeg-trac] #9312(undetermined:open): assertion failed in av_rescale_delta

[FFmpeg]

#9312: assertion failed in av_rescale_delta
-------------------------------------+-------------------------------------
             Reporter:  dzj          |                    Owner:  (none)
                 Type:  defect       |                   Status:  open
             Priority:  important    |                Component:
                                     |  undetermined
              Version:  git-master   |               Resolution:
             Keywords:  crash abort  |               Blocked By:
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Changes (by Carl Eugen Hoyos):

 * keywords:   => crash abort
 * status:  new => open
 * component:  avutil => undetermined
 * reproduced:  0 => 1

Comment:

 {{{
 $ ffmpeg -i abort_bug_input -vn -c:a copy -f null -
 ffmpeg version N-102812-g9583e66ea0 Copyright (c) 2000-2021 the FFmpeg
 developers
   built with gcc 10 (SUSE Linux)
   configuration: --enable-gpl
   libavutil      57.  0.100 / 57.  0.100
   libavcodec     59.  3.100 / 59.  3.100
   libavformat    59.  4.100 / 59.  4.100
   libavdevice    59.  0.100 / 59.  0.100
   libavfilter     8.  0.103 /  8.  0.103
   libswscale      6.  0.100 /  6.  0.100
   libswresample   4.  0.100 /  4.  0.100
   libpostproc    56.  0.100 / 56.  0.100
 st:0 has too large timebase, reducing
 [avi @ 0x31fa740] crazy start time, iam scared, giving up
 [avi @ 0x31fa740] sample size (4) != block align (16)
 [avi @ 0x31fa740] Something went wrong during header parsing, tag ST[4][1]
 has size 1684996096, I will ignore it and try to continue anyway.
 [adpcm_ms @ 0x31fc9c0] Too many or invalid channels: 22050
 [avi @ 0x31fa740] Failed to open codec in avformat_find_stream_info
 [adpcm_ms @ 0x31fc9c0] Too many or invalid channels: 22050
 [mpeg4 @ 0x31fbb00] time_increment_bits 0 is invalid in relation to the
 current bitstream, this is likely caused by a missing VOL header
 [mpeg4 @ 0x31fbb00] time_increment_bits set to 15 bits, based on bitstream
 analysis
 [mpeg4 @ 0x31fbb00] Error, header damaged or not MPEG-4 header (f_code=0)
 [mpeg4 @ 0x31fbb00] time_increment_bits 4 is invalid in relation to the
 current bitstream, this is likely caused by a missing VOL header
 [mpeg4 @ 0x31fbb00] time_increment_bits set to 15 bits, based on bitstream
 analysis
 [mpeg4 @ 0x31fbb00] looks like this file was encoded with
 (divx4/(old)xvid/opendivx) -> forcing low_delay flag
 [mpeg4 @ 0x31fbb00] Error, header damaged or not MPEG-4 header (f_code=0)
     Last message repeated 2 times
 [avi @ 0x31fa740] Packet corrupt (stream = 0, dts = 81).
 Input #0, avi, from 'abort_bug_input':
   Duration: 00:00:00.01, start: 0.000000, bitrate: 271968 kb/s
   Stream #0:0: Video: mpeg4 (DX50 / 0x30355844), yuv420p, 352x288, 9300.90
 fps, 9300.90 tbr, 9300.90 tbn
   Stream #0:1: Audio: adpcm_ms ([2][0][0][0] / 0x0002), 786432000 Hz,
 22050 channels, 69363302400 kb/s
 Output #0, null, to 'pipe:':
   Metadata:
     encoder         : Lavf59.4.100
   Stream #0:0: Audio: adpcm_ms ([2][0][0][0] / 0x0002), 786432000 Hz,
 22050 channels, 69363302400 kb/s
 Stream mapping:
   Stream #0:1 -> #0:0 (copy)
 Press [q] to stop, [?] for help
 Assertion duration >= 0 failed at libavutil/mathematics.c:172
 Aborted (core dumped)
 }}}
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9312#comment:3>
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