From 071d353e57497f0955fa592fa5866be80a8c4386 Mon Sep 17 00:00:00 2001 From: Kostya Shishkov Date: Sun, 19 Jul 2020 12:13:48 +0200 Subject: [PATCH] add help --- src/main.rs | 25 ++++++++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) diff --git a/src/main.rs b/src/main.rs index de13de9..6b9086f 100644 --- a/src/main.rs +++ b/src/main.rs @@ -653,7 +653,30 @@ fn main() { let args: Vec<_> = env::args().collect(); if args.len() == 1 { - println!("usage: nihav-encoder [-noout] [-vn] [-an] input [lastpts]"); + println!("usage: nihav-encoder [options] --input inputfile --output outputfile"); + println!(" use nihav-encoder --help to list all available options"); + return; + } + if args.len() == 2 && (args[1] == "--help" || args[1] == "-h") { + println!("usage: nihav-encoder [options] --input inputfile --output outputfile"); + println!(" query options:"); + println!(" --list-{{decoders,encoders,demuxers,muxers}} - lists all available decoders/encoders/demuxers/muxers"); + println!(" --query-{{decoder,encoder,demuxer,muxer}}-options name - lists all options recognized by that decoder/encoder/demuxer/muxer"); + println!(" processing options:"); + println!(" --input inputfile - set input file"); + println!(" --input-format fmt - force input format"); + println!(" --demuxer-options options - set input demuxer options"); + println!(" --output outputfile - set output file"); + println!(" --output-format fmt - force output format"); + println!(" --muxer-options options - set output muxer options"); + println!(" --no-audio - do not decode audio streams"); + println!(" --no-video - do not decode video streams"); + println!(" --start starttime - start decoding from given position"); + println!(" --end endtime - end decoding at given position"); + println!(" --istreamX options - set options for input stream X"); + println!(" --ostreamX options - set options for output stream X"); + println!(); + println!(" (de)muxer and stream options are passed as comma-separated list e.g. --ostream0 width=320,height=240,flip"); return; } -- 2.30.2