add frame skipping mode

diff --git a/src/main.rs b/src/main.rs
index 0892c43d0ba5a305c8877c2f0dfe51c8f8411c8e..1be4e2a0a7e36a42ebb004e69251cc84006bd64a 100644 (file)
--- a/src/main.rs
+++ b/src/main.rs
@@ -83,6 +83,7 @@ fn main() {
     let mut decode_video = true;
     let mut decode_audio = true;
     let mut nmode = NumberMode::FrmPTS;
+    let mut smode = FrameSkipMode::None;
     let mut seek_time = 0u64;
     let mut vpfx: Option<String> = None;
     let mut apfx: Option<&str> = None;
@@ -98,6 +99,8 @@ fn main() {
             "-nm=count"  => { nmode = NumberMode::Counter; },
             "-nm=pktpts" => { nmode = NumberMode::PktPTS; },
             "-nm=frmpts" => { nmode = NumberMode::FrmPTS; },
+            "-skip=key"   => { smode = FrameSkipMode::KeyframesOnly; },
+            "-skip=intra" => { smode = FrameSkipMode::IntraOnly; },
             "-seek"     => {
                 cur_arg += 1;
                 if cur_arg == args.len() {
@@ -171,6 +174,7 @@ println!(" seek error {:?}", ret.err().unwrap());
     let mut decs: Vec<Option<(Box<NADecoderSupport>, Box<dyn NADecoder>)>> = Vec::new();
     let mut sids: Vec<u32> = Vec::new();
     let mut writers: Vec<Outputter> = Vec::new();
+    let dec_opts = [NAOption{name: FRAME_SKIP_OPTION, value: NAValue::String(smode.to_string())}];
     for i in 0..dmx.get_num_streams() {
         let s = dmx.get_stream(i).unwrap();
         let info = s.get_info();
@@ -188,6 +192,7 @@ println!("stream {} - {} {}", i, s, info.get_name());
                 let mut dec = (decfunc.unwrap())();
                 let mut dsupp = Box::new(NADecoderSupport::new());
                 dec.init(&mut dsupp, info).unwrap();
+                dec.set_options(&dec_opts);
                 decs.push(Some((dsupp, dec)));
                 if !noout {
                     writers.push(Outputter::Video(FrameOutput{prefix: if let Some(ref str) = vpfx { str.clone() } else { "out".to_string() }, streamno: i, frameno: 1, nmode}));