[FFmpeg-devel] [PATCH] Add documentation for -ast, -vst, -sst

Stefano Sabatini stefano.sabatini-lala
Tue Feb 24 23:50:40 CET 2009


On date Sunday 2009-02-22 13:34:15 +0100, Stefano Sabatini encoded:
> On date Thursday 2009-02-19 20:52:35 -0500, Steve Zakulec encoded:
> > This patch adds documentation for the three options listed above.
> 
> > Index: ffplay.c
> > ===================================================================
> > --- ffplay.c	(revision 17468)
> > +++ ffplay.c	(working copy)
> > @@ -2503,9 +2503,9 @@
> >      { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
> >      { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
> >      { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
> > -    { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_audio_stream}, "", "" },
> > -    { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_video_stream}, "", "" },
> > -    { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_subtitle_stream}, "", "" },
> > +    { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_audio_stream}, "desired audio stream", "" },
> 
> The help name should be a verbal description of what the option does, for example:
> "select audio stream to play"
> 
> the argname is the nominal description of the arg, so maybe "audio
> stream number" may work.
> 
> Also the man page should be updated and extended, for example the
> number is the global stream index or the number of the audio stream in
> the list of audio streams? Also what happens when the value is invalid
> (negative or too big), does it starts with zero or with 1?
> 
> > +    { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_video_stream}, "desired video stream", "" },
> > +    { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_subtitle_stream}, "desired subtitle stream", "" },
> >      { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
> >      { "bytes", OPT_BOOL, {(void*)&seek_by_bytes}, "seek by bytes" },
> >      { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },

Attached patch.

Regards.
-- 
FFmpeg = Fundamental Friendly Most Peaceless Enigmatic Goblin
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