[FFmpeg-trac] #2397(undetermined:new): Burn a selected picture based subtitle into video lost most part of the selected subtitle in the result video

FFmpeg trac at avcodec.org
Sun Mar 24 11:10:00 CET 2013


#2397: Burn a selected picture based subtitle into video lost most part of the
selected subtitle in the result video
-------------------------------------+-------------------------------------
             Reporter:  littlebat    |                     Type:  defect
               Status:  new          |                 Priority:  important
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:  burn         |               Blocked By:
  subtitle                           |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 I am trying burn a selected picture based subtitle into video according to
 the guide in ffmpeg wiki page: "How to burn subtitles into the video" :
 http://ffmpeg.org/trac/ffmpeg/wiki/How%20to%20burn%20subtitles%20into%20the%20video
 . But, the most part of the selected subtitle disappeared in the result
 video.

 The command line I used:
 /opt/ffmpeggit/bin/ffmpeg -ss 240 -i CD1.mkv -filter_complex
 '[0:v][0:s:1]overlay[v]' -map [v] -map 0:a -c:v mpeg4 -b:v 1024k -c:a
 libmp3lame -async 1 -t 10 240_10_s_1.mkv
 But, in this section from 240 second to 250 second, no subtitle be burned
 into video. I can use "mplayer -sid 1 -ss 240 -endpos 10 CD1.mkv" to
 confirm the selected subtitle is in this section of input file.

 The console output as below (cuted the trival output, marked as
 "[omit...]" below):
 mdx at debian:~/test$ /opt/ffmpeggit/bin/ffmpeg -ss 240 -i CD1.mkv
 -filter_complex '[0:v][0:s:1]overlay[v]' -map [v] -map 0:a -c:v mpeg4 -b:v
 1024k -c:a libmp3lame -async 1 -t 10 240_10_s_1.mkv
 ffmpeg version N-51166-g4331484 Copyright (c) 2000-2013 the FFmpeg
 developers
   built on Mar 21 2013 08:50:03 with gcc 4.4.5 (Debian 4.4.5-8)
   configuration: --prefix=/opt/ffmpeggit --enable-static --disable-shared
 --enable-gpl --enable-version3 --enable-nonfree --enable-fontconfig
 --enable-libass --enable-libfreetype --enable-swscale --enable-postproc
 --enable-pthreads --enable-libfaac --enable-libopencore-amrnb --enable-
 libopencore-amrwb --enable-libmp3lame --enable-libopenjpeg --enable-
 libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --extra-
 cflags=-I/opt/custom/include --extra-ldflags=-L/opt/custom/lib
   libavutil      52. 22.100 / 52. 22.100
   libavcodec     55.  1.100 / 55.  1.100
   libavformat    55.  0.100 / 55.  0.100
   libavdevice    55.  0.100 / 55.  0.100
   libavfilter     3. 48.100 /  3. 48.100
   libswscale      2.  2.100 /  2.  2.100
   libswresample   0. 17.102 /  0. 17.102
   libpostproc    52.  2.100 / 52.  2.100
 Input #0, matroska,webm, from 'CD1.mkv':
   Metadata:
     creation_time   : 2009-09-01 23:53:41
   Duration: 01:08:31.01, start: 0.000000, bitrate: 3018 kb/s
     Stream #0:0: Video: h264 (High), yuv420p, 720x480, SAR 1:1 DAR 3:2,
 29.97 fps, 29.97 tbr, 1k tbn, 59.94 tbc (default)
     Stream #0:1: Audio: dts (DTS), 48000 Hz, 5.1(side), fltp, 1536 kb/s
 (default)
     Stream #0:2(fre): Subtitle: dvd_subtitle (default)
     Stream #0:3(chi): Subtitle: dvd_subtitle
     Stream #0:4(chi): Subtitle: dvd_subtitle
 -async is forwarded to lavfi similarly to -af
 aresample=async=1:min_hard_comp=0.100000:first_pts=0.
 Output #0, matroska, to '240_10_s_1.mkv':
   Metadata:
     encoder         : Lavf55.0.100
     Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 720x480 [SAR
 1:1 DAR 3:2], q=2-31, 1024 kb/s, 1k tbn, 29.97 tbc
     Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 48000 Hz, stereo, fltp
 (default)
 Stream mapping:
   Stream #0:0 (h264) -> overlay:main (graph 0)
   Stream #0:3 (dvdsub) -> overlay:overlay (graph 0)
   overlay (graph 0) -> Stream #0:0 (mpeg4)
   Stream #0:1 -> #0:1 (dca -> libmp3lame)
 Press [q] to stop, [?] for help
 frame=    2 fps=1.9 q=2.0 size=      33kB time=00:00:00.14
 bitrate=1843.3kbits/sframe=    5 fps=3.2 q=2.0 size=      65kB
 time=00:00:00.26 bitrate=1997.8kbits/sframe=   11 fps=5.4 q=4.4 size=
 129kB time=00:00:00.40 bitrate=2576.3kbits/sframe=   16 fps=6.3 q=4.4
 size=     180kB
 [omit...]
 frame=  300 fps=9.3 q=7.5 size=    1534kB time=00:00:10.01
 bitrate=1255.8kbits/sframe=  300 fps=9.2 q=7.5 Lsize=    1559kB
 time=00:00:10.01 bitrate=1275.8kbits/s dup=0 drop=25
 video:1396kB audio:157kB subtitle:0 global headers:0kB muxing overhead
 0.405373%
 mdx at debian:~/test$

 The input file information:
 mdx at debian:~/test$ /opt/ffmpeggit/bin/ffmpeg -v 9 -loglevel 99 -i CD1.mkv
 ffmpeg version N-51166-g4331484 Copyright (c) 2000-2013 the FFmpeg
 developers
   built on Mar 21 2013 08:50:03 with gcc 4.4.5 (Debian 4.4.5-8)
   configuration: --prefix=/opt/ffmpeggit --enable-static --disable-shared
 --enable-gpl --enable-version3 --enable-nonfree --enable-fontconfig
 --enable-libass --enable-libfreetype --enable-swscale --enable-postproc
 --enable-pthreads --enable-libfaac --enable-libopencore-amrnb --enable-
 libopencore-amrwb --enable-libmp3lame --enable-libopenjpeg --enable-
 libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --extra-
 cflags=-I/opt/custom/include --extra-ldflags=-L/opt/custom/lib
   libavutil      52. 22.100 / 52. 22.100
   libavcodec     55.  1.100 / 55.  1.100
   libavformat    55.  0.100 / 55.  0.100
   libavdevice    55.  0.100 / 55.  0.100
   libavfilter     3. 48.100 /  3. 48.100
   libswscale      2.  2.100 /  2.  2.100
   libswresample   0. 17.102 /  0. 17.102
   libpostproc    52.  2.100 / 52.  2.100
 Splitting the commandline.
 Reading option '-v' ... matched as option 'v' (set libav* logging level)
 with argument '9'.
 Reading option '-loglevel' ... matched as option 'loglevel' (set libav*
 logging level) with argument '99'.
 Reading option '-i' ... matched as input file with argument 'CD1.mkv'.
 Finished splitting the commandline.
 Parsing a group of options: global .
 Applying option v (set libav* logging level) with argument 9.
 Successfully parsed a group of options.
 Parsing a group of options: input file CD1.mkv.
 Successfully parsed a group of options.
 Opening an input file: CD1.mkv.
 [matroska,webm @ 0xa7a8800] Format matroska,webm probed with size=2048 and
 score=100
 st:0 removing common factor 1000000 from timebase
 st:1 removing common factor 1000000 from timebase
 st:2 removing common factor 1000000 from timebase
 st:3 removing common factor 1000000 from timebase
 st:4 removing common factor 1000000 from timebase
 [matroska,webm @ 0xa7a8800] File position before
 avformat_find_stream_info() is 6873
 [dvdsub @ 0xa7aaf40] palette: 0x000000 0x1f1f1f 0xffffff 0xe63f07 0x7e7e7e
 0xbebebe 0x14bef3 0xea12eb 0xfaff1a 0x000070 0x067506 0x731f03 0x095f78
 0x750975 0x7c950b 0xffffff
 [dvdsub @ 0xa7ab720] palette: 0x000000 0x1f1f1f 0xffffff 0xe63f07 0x7e7e7e
 0xbebebe 0x14bef3 0xea12eb 0xfaff1a 0x000070 0x067506 0x731f03 0x095f78
 0x750975 0x7c950b 0xffffff
 [dvdsub @ 0xa7abf20] palette: 0x000000 0x1f1f1f 0xffffff 0xe63f07 0x7e7e7e
 0xbebebe 0x14bef3 0xea12eb 0xfaff1a 0x000070 0x067506 0x731f03 0x095f78
 0x750975 0x7c950b 0xffffff
 [h264 @ 0xa7aa440] Using externally provided dimensions
 [h264 @ 0xa7aa440] no picture
 [dca @ 0xa7aa9c0] Stream with high frequencies VQ coding
 [matroska,webm @ 0xa7a8800] All info found
 [matroska,webm @ 0xa7a8800] File position after
 avformat_find_stream_info() is 39890
 Input #0, matroska,webm, from 'CD1.mkv':
   Metadata:
     creation_time   : 2009-09-01 23:53:41
   Duration: 01:08:31.01, start: 0.000000, bitrate: 3018 kb/s
     Stream #0:0, 3, 1/1000: Video: h264 (High), yuv420p, 720x480,
 333667/20000000, SAR 1:1 DAR 3:2, 29.97 fps, 29.97 tbr, 1k tbn, 59.94 tbc
 (default)
     Stream #0:1, 16, 1/1000: Audio: dts (DTS), 48000 Hz, 5.1(side), fltp,
 1536 kb/s (default)
     Stream #0:2(fre), 0, 1/1000: Subtitle: dvd_subtitle (default)
     Stream #0:3(chi), 0, 1/1000: Subtitle: dvd_subtitle
     Stream #0:4(chi), 0, 1/1000: Subtitle: dvd_subtitle
 Successfully opened the file.
 At least one output file must be specified
 Statistics: 65536 bytes read, 0 seeks
 mdx at debian:~/test$

 But, it seems a little part of the video can be burned the same selected
 subtitle into result video normally, for example, from 395 senconds to 405
 seconds:
 /opt/ffmpeggit/bin/ffmpeg -ss 395 -i CD1.mkv -filter_complex
 '[0:v][0:s:1]overlay[v]' -map [v] -map 0:a -c:v mpeg4 -b:v 1024k -c:a
 libmp3lame -async 1 -t 10 395_10_s_1.mkv

 Attachments:
 1, Input file sample: "CD1_10M.mkv" (created by: dd if=CD1.mkv
 of=CD1_10M.mkv bs=1024 count=10000), also, for research purpose, you can
 download the entire file via emule:
 ed2k://|file|[%E5%B7%B4%E9%BB%8E%E5%9C%A3%E6%AF%8D%E9%99%A2].Notre.Dame.de.Paris.1999.DVDrip.x264.DTS.by.writeclay.CD1.mkv|1551161470|1E41A8E6CC648AF4BEF5D16A5F673B59|/
 2, The part can't burn the selected subtitle: "240_10.mkv" (created by:
 /opt/ffmpeggit/bin/ffmpeg -ss 240 -i CD1.mkv -c copy -map 0:0 -map 0:1
 -map 0:2 -map 0:3 -map 0:4 -async 1 -t 10 240_10.mkv);
 3, The part can burn the selected subtitle: "395_10.mkv" (created by:
 /opt/ffmpeggit/bin/ffmpeg -ss 395 -i CD1.mkv -c copy -map 0:0 -map 0:1
 -map 0:2 -map 0:3 -map 0:4 -async 1 -t 10 395_10.mkv).

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2397>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker


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