[FFmpeg-devel] [PATCH 6/8] fftools/ffmpeg_opt: briefly mention stream specifier syntax in help output
Anton Khirnov
anton at khirnov.net
Wed Jan 17 14:40:33 EET 2024
---
fftools/ffmpeg_opt.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fftools/ffmpeg_opt.c b/fftools/ffmpeg_opt.c
index 4abdd457d3..bdb71d4283 100644
--- a/fftools/ffmpeg_opt.c
+++ b/fftools/ffmpeg_opt.c
@@ -1194,6 +1194,9 @@ 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:",
--
2.42.0
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