[FFmpeg-trac] #10341(avcodec:new): [Caption] FFmpeg fails to decode closed-caption to srt/webvtt

[FFmpeg]

#10341: [Caption] FFmpeg fails to decode closed-caption to srt/webvtt
-------------------------------------+-------------------------------------
             Reporter:  Zied Aouina  |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  CLosed-      |               Blocked By:
  caption, eia-608, sub-rip          |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Comment (by Zied Aouina):

 Version 4.2.3 was able to convert the file :
 ffmpeg.exe -loglevel debug  -f lavfi -i
 movie=flvdecoder_input223-1.flv[out+subcc] -y  -map 0:1  ./output_p.srt
 ffmpeg version git-2020-06-17-0b3bd00 Copyright (c) 2000-2020 the FFmpeg
 developers
   built with gcc 9.3.1 (GCC) 20200523
   configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-
 fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-
 libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame
 --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
 --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr
 --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx
 --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265
 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp
 --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-
 amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-
 libaom --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-
 cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec
 --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
   libavutil      56. 55.100 / 56. 55.100
   libavcodec     58. 92.100 / 58. 92.100
   libavformat    58. 46.101 / 58. 46.101
   libavdevice    58. 11.100 / 58. 11.100
   libavfilter     7. 86.100 /  7. 86.100
   libswscale      5.  8.100 /  5.  8.100
   libswresample   3.  8.100 /  3.  8.100
   libpostproc    55.  8.100 / 55.  8.100
 Input file #0 (movie=flvdecoder_input223-1.flv[out+subcc]):
   Input stream #0:0 (video): 128 packets read (176947200 bytes);
   Input stream #0:1 (subtitle): 128 packets read (7650 bytes); 3 frames
 decoded;
   Total: 256 packets (176954850 bytes) demuxed
 Output file #0 (./output_p.srt):
   Output stream #0:0 (subtitle): 3 frames encoded; 3 packets muxed (258
 bytes);
   Total: 3 packets (258 bytes) muxed
 3 frames successfully decoded, 0 decoding errors
 [AVIOContext @ 000002018da92900] Statistics: 0 seeks, 1 writeouts
 [AVIOContext @ 000002018d0c2900] Statistics: 2119113 bytes read, 0 seeks
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10341#comment:1>
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