[FFmpeg-trac] #7117(avcodec:open): DVB subtitles render incorrectly
FFmpeg
trac at avcodec.org
Wed Apr 4 08:33:54 EEST 2018
#7117: DVB subtitles render incorrectly
------------------------------------+-----------------------------------
Reporter: leoenc | Owner:
Type: defect | Status: open
Priority: normal | Component: avcodec
Version: git-master | Resolution:
Keywords: dvbsub | Blocked By:
Blocking: | Reproduced by developer: 1
Analyzed by developer: 1 |
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Comment (by leoenc):
Replying to [comment:2 cehoyos]:
> Can you confirm that the issue is not reproducible with old (!) FFplay?
I can confirm. Tested with a build from 2013 and the output looks perfect.
{{{
ffplay_old.exe out.ts
ffplay version N-54161-gc329713 Copyright (c) 2003-2013 the FFmpeg
developers
built on Jun 23 2013 14:25:36 with gcc 4.7.3 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads
--enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r
--enable-gnutls --enable-iconv --enable-libass --enable-libbluray
--enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc
--enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-
librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex
--enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-
libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264
--enable-libxavs --enable-libxvid --enable-zlib
libavutil 52. 37.101 / 52. 37.101
libavcodec 55. 16.100 / 55. 16.100
libavformat 55. 9.100 / 55. 9.100
libavdevice 55. 2.100 / 55. 2.100
libavfilter 3. 77.101 / 3. 77.101
libswscale 2. 3.100 / 2. 3.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 3.100 / 52. 3.100
max_analyze_duration 5000000 reached at 5000000 microsecondsf=0/0
Input #0, mpegts, from 'out.ts':
Duration: 00:00:29.96, start: 1.440000, bitrate: 774 kb/s
Program 1
Metadata:
service_name : Service01
service_provider: FFmpeg
Stream #0:0[0x100]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002),
yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
Stream #0:1[0x101](und): Subtitle: dvb_subtitle ([6][0][0][0] /
0x0006)
24.74 M-V: -0.028 fd= 0 aq= 0KB vq= 693KB sq= 0B f=0/0
}}}
BTW, better use some color for the background when testing, so the
subtitle border is visible, e.g.:
{{{
ffmpeg -f lavfi -i color=green:s=hd1080 -fix_sub_duration -i subtitles.sup
-scodec dvbsub -qscale 2 -mbd 2 -t 30 out.ts
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/7117#comment:4>
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