[FFmpeg-cvslog] fftools/ffmpeg_opt: briefly mention stream specifier syntax in help output

[Anton Khirnov]

ffmpeg | branch: master | Anton Khirnov <anton at khirnov.net> | Wed Jan 17 13:07:24 2024 +0100| [0b95e71aa046b77ad31bb8891b7b6aede6a722c7] | committer: Anton Khirnov

fftools/ffmpeg_opt: briefly mention stream specifier syntax in help output

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=0b95e71aa046b77ad31bb8891b7b6aede6a722c7
---

 fftools/ffmpeg_opt.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fftools/ffmpeg_opt.c b/fftools/ffmpeg_opt.c
index 771599c96a..723f8814ee 100644
--- a/fftools/ffmpeg_opt.c
+++ b/fftools/ffmpeg_opt.c
@@ -1195,6 +1195,9 @@ void show_help_default(const char *opt, const char *arg)
            "    -h full -- print all options (including all format and codec specific options, very long)\n"
            "    -h type=name -- print all options for the named decoder/encoder/demuxer/muxer/filter/bsf/protocol\n"
            "    See man %s for detailed description of the options.\n"
+           "\n"
+           "Per-stream options can be followed by :<stream_spec> to apply that option to specific streams only. "
+           "<stream_spec> can be a stream index, or v/a/s for video/audio/subtitle (see manual for full syntax).\n"
            "\n", program_name);
 
     show_help_options(options, "Print help / information / capabilities:",