#10650: Subtitle problem in new ffmpeg version transcoding crashes with sume
subtitles
-------------------------------------+-------------------------------------
Reporter: Wkuf | Type: defect
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: | Blocked By:
dvb_subtitle subtitle compilation |
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug: I used ffmpeg version N-99878-g406879f to code my
videos since many years without problems. After recompiling ffmpeg version
N-112494-g393d1ee541 the option -scodec dvdsub crashes videos with
dvb_subtitle in a ts file. If I transcode the same video with the old
version everything is fine.
How to reproduce:
{{{
% ffmpeg -y -itsoffset 0 -threads 4 -i
/mnt/00001_Neo_test_dd_abspielbar.ts -ss 00:00:02 -to 00:00:14
-filter_complex "[0]yadif=0:-1:0[deint]" -map "[deint]" -map 0:a -map
0:s:0 -codec:v libx264 -preset veryslow -crf 23 -c:a libfdk_aac -b:a 128k
-scodec dvdsub /mnt/00001_Neo_test_dd_abspielbar_ffmpeg_new.mkv
ffmpeg version N-112494-g393d1ee541 Copyright (c) 2000-2023 the FFmpeg
developers
built with gcc 11 (Ubuntu 11.4.0-1ubuntu1~22.04)
configuration: --prefix=/home/werner/ffmpeg_build --pkg-config-
flags=--static --extra-cflags=-I/home/werner/ffmpeg_build/include --extra-
ldflags=-L/home/werner/ffmpeg_build/lib --extra-libs='-lpthread -lm'
--ld=g++ --bindir=/home/werner/bin --enable-gpl --enable-gnutls --enable-
libaom --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-
libmp3lame --enable-libopus --enable-libsvtav1 --enable-libdav1d --enable-
libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-
nonfree --enable-libzvbi
libavutil 58. 27.100 / 58. 27.100
libavcodec 60. 30.102 / 60. 30.102
libavformat 60. 15.100 / 60. 15.100
libavdevice 60. 2.101 / 60. 2.101
libavfilter 9. 11.100 / 9. 11.100
libswscale 7. 4.100 / 7. 4.100
libswresample 4. 11.100 / 4. 11.100
libpostproc 57. 2.100 / 57. 2.100
}}}
I added two log files
fmpeg-20231103-193114_new.log is the result of the crash with version
N-112494-g393d1ee541
ffmpeg-20231103-193512_old.log is the result of the old version that
generates perfect output files including the correct subtitle
--
Ticket URL: <https://trac.ffmpeg.org/ticket/10650>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
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