[FFmpeg-user] ffprobe infinite loop when processing pgssub/dvdsub

[Carl Eugen Hoyos]

Hans Carlson <forbyta <at> inbox.com> writes:

> With the latest git master (2016/03/18), if ffprobe is 
> used on a pgssub or dvdsub stream, it goes into an 
> infinite loop.

FFprobe terminates fine here with the sample you uploaded, 
what do I miss?

$ ffprobe -analyzeduration 2G -i pgssub-ffprobe.infinite.loop.mpg
-select_streams s:0 -show_frames -print_format flat | grep pts_time | head
ffprobe version N-79083-gc411e90 Copyright (c) 2007-2016 the FFmpeg developers
  built with gcc 4.8 (SUSE Linux)
  configuration: --enable-libopenjpeg --enable-libx265 --enable-libx264
--enable-gpl
  libavutil      55. 19.100 / 55. 19.100
  libavcodec     57. 28.103 / 57. 28.103
  libavformat    57. 28.102 / 57. 28.102
  libavdevice    57.  0.101 / 57.  0.101
  libavfilter     6. 39.102 /  6. 39.102
  libswscale      4.  0.100 /  4.  0.100
  libswresample   2.  0.101 /  2.  0.101
  libpostproc    54.  0.100 / 54.  0.100
Input #0, mpeg, from 'pgssub-ffprobe.infinite.loop.mpg':
  Duration: 00:00:10.55, start: 0.541711, bitrate: 10382 kb/s
    Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p(tv), 1920x1080
[SAR 1:1 DAR 16:9], max. 30000 kb/s, 23.98 fps, 23.98 tbr, 90k tbn, 47.95 tbc
    Stream #0:1[0x80]: Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
    Stream #0:2[0x20]: Subtitle: dvd_subtitle
frames.subtitle.0.pts_time="2.685711"
frames.subtitle.1.pts_time="2.685711"
frames.subtitle.2.pts_time="2.685711"
frames.subtitle.3.pts_time="2.685711"
frames.subtitle.4.pts_time="2.685711"
frames.subtitle.5.pts_time="2.685711"
frames.subtitle.6.pts_time="2.685711"
frames.subtitle.7.pts_time="2.685711"
frames.subtitle.8.pts_time="2.685711"
frames.subtitle.9.pts_time="2.685711"
$