[FFmpeg-trac] #3822(avformat:new): Assertion failure when reencoding ass in mkv
FFmpeg
trac at avcodec.org
Fri Aug 1 02:16:22 CEST 2014
#3822: Assertion failure when reencoding ass in mkv
-------------------------------------+-------------------------------------
Reporter: cehoyos | Owner:
Type: defect | Status: new
Priority: important | Component: avformat
Version: git- | Keywords: mkv crash
master | abort regression
Blocked By: | Blocking:
Reproduced by developer: 0 | Analyzed by developer: 0
-------------------------------------+-------------------------------------
The sample from ticket #3120 causes an assertion failure on reencoding
since 925f7980
{{{
$ ffmpeg -i 3120-ssa-2-srt-fails-001.mkv out.mkv
ffmpeg version N-65142-gd76675d Copyright (c) 2000-2014 the FFmpeg
developers
built on Aug 1 2014 02:13:52 with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl
libavutil 52. 94.100 / 52. 94.100
libavcodec 55. 71.100 / 55. 71.100
libavformat 55. 50.100 / 55. 50.100
libavdevice 55. 13.102 / 55. 13.102
libavfilter 4. 11.102 / 4. 11.102
libswscale 2. 6.100 / 2. 6.100
libswresample 0. 19.100 / 0. 19.100
libpostproc 52. 3.100 / 52. 3.100
[matroska,webm @ 0x27c3c60] Unknown entry 0x437E
Last message repeated 1 times
Input #0, matroska,webm, from '3120-ssa-2-srt-fails-001.mkv':
Metadata:
encoder : libebml v1.2.2 + libmatroska v1.3.0
creation_time : 2013-11-05 16:43:47
Duration: 00:01:44.94, bitrate: 160 kb/s
Chapter #0.0: start 0.000000, end 97.918375
Metadata:
title : Intro
Chapter #0.1: start 97.918375, end 104.940000
Metadata:
title : OP
Stream #0:0(eng): Subtitle: ssa (default)
Stream #0:1: Attachment: ttf
Metadata:
filename : Comfortaa-Regular.ttf
mimetype : application/x-truetype-font
Stream #0:2: Attachment: ttf
Metadata:
filename : LT.ttf
mimetype : application/x-truetype-font
Stream #0:3: Attachment: ttf
Metadata:
filename : LTFinnegan_MediumItalic.ttf
mimetype : application/x-truetype-font
Stream #0:4: Attachment: ttf
Metadata:
filename : Cavalier.ttf
mimetype : application/x-truetype-font
Stream #0:5: Attachment: ttf
Metadata:
filename : Comfortaa-Bold.ttf
mimetype : application/x-truetype-font
Stream #0:6: Attachment: ttf
Metadata:
filename : DSFetteKanzlei.ttf
mimetype : application/x-truetype-font
Stream #0:7: Attachment: ttf
Metadata:
filename : KaiserzeitGotisch.ttf
mimetype : application/x-truetype-font
Stream #0:8: Attachment: ttf
Metadata:
filename : Mothproof_Script.ttf
mimetype : application/x-truetype-font
Output #0, matroska, to 'out.mkv':
Metadata:
encoder : Lavf55.50.100
Chapter #0.0: start 0.000000, end 97.918375
Metadata:
title : Intro
Chapter #0.1: start 97.918375, end 104.940000
Metadata:
title : OP
Stream #0:0(eng): Subtitle: ssa (default)
Metadata:
encoder : Lavc55.71.100 ssa
Stream mapping:
Stream #0:0 -> #0:0 (ssa (native) -> ssa (native))
Press [q] to stop, [?] for help
Assertion bytes >= needed_bytes failed at libavformat/matroskaenc.c:195
Aborted
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/3822>
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