switch to buffered readers and writers

[nihav-tool.git] / src / main.rs

diff --git a/src/main.rs b/src/main.rs
index 1be4e2a0a7e36a42ebb004e69251cc84006bd64a..cbd17d327ebe0769f92621b3cb30860a460c5090 100644 (file)
--- a/src/main.rs
+++ b/src/main.rs
@@ -3,7 +3,7 @@ extern crate nihav_codec_support;
 extern crate nihav_registry;
 extern crate nihav_allstuff;
 
-use std::io::{SeekFrom, Write};
+use std::io::{SeekFrom, Write, BufReader};
 use std::fs::File;
 use std::path::Path;
 use nihav_core::io::byteio::{FileReader, ByteReader};
@@ -74,17 +74,33 @@ fn main() {
     let args: Vec<_> = env::args().collect();
 
     if args.len() == 1 {
-        println!("usage: nihav-tool [-noout] [-vn] [-an] input [lastpts]");
+        println!("usage: nihav-tool [-noout] [-vn] [-an] input [endtime]");
+        println!(" or invoke nihav-tool --help for more detailed information");
         return;
     }
-    let mut lastpts: Option<u64> = None;
+    if args.len() == 2 && args[1] == "--help" {
+        println!("usage: nihav-tool [options] input [endtime]");
+        println!("available options:");
+        println!(" -noout     - decode but do not write output");
+        println!(" -an        - do not decode audio streams");
+        println!(" -vn        - do not decode video streams");
+        println!(" -nm={{count,pktpts,frmpts}} - use counter/frame PTS/decoded PTS as output image number");
+        println!(" -skip={{key,intra}} - decode only reference frames (I-/P-) or intra frames only");
+        println!(" -seek time - try seeking to the given time before starting decoding");
+        println!(" -apfx/-vpfx prefix - use given prefix when creating output audio/video files instead of default 'out'");
+        println!(" -ignerr    - keep decoding even if decoding error is encountered");
+        println!(" -dumpfrm   - dump raw frame data for all streams");
+        println!(" endtime    - decoding end time, can be given either as time (hh:mm:ss.ms) or as a timestamp (e.g. 42pts)");
+        return;
+    }
+    let mut lastpts = NATimePoint::None;
     let mut cur_arg: usize = 1;
     let mut noout = false;
     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 seek_time = NATimePoint::None;
     let mut vpfx: Option<String> = None;
     let mut apfx: Option<&str> = None;
     let mut ignore_errors = false;
@@ -107,7 +123,7 @@ fn main() {
                     println!("seek time missing");
                     return;
                 }
-                let ret = args[cur_arg].parse::<u64>();
+                let ret = args[cur_arg].parse::<NATimePoint>();
                 if ret.is_err() {
                     println!("wrong seek time");
                     return;
@@ -139,11 +155,17 @@ fn main() {
     let name = args[cur_arg].as_str();
     cur_arg += 1;
     if cur_arg < args.len() {
-        lastpts = Some(u64::from_str_radix(args[cur_arg].as_str(), 10).unwrap());
+        let ret = args[cur_arg].parse::<NATimePoint>();
+        if ret.is_err() {
+            println!("cannot parse end time");
+            return;
+        }
+        lastpts = ret.unwrap();
     }
 
     let path = Path::new(name);
-    let mut file = File::open(path).unwrap();
+    let file = File::open(path).unwrap();
+    let mut file = BufReader::new(file);
     let dmx_fact;
     let mut fr = FileReader::new_read(&mut file);
     let mut br = ByteReader::new(&mut fr);
@@ -158,13 +180,13 @@ println!("trying demuxer {} on {}", dmx_name, name);
     let mut dmx_reg = RegisteredDemuxers::new();
     nihav_register_all_demuxers(&mut dmx_reg);
     let mut dec_reg = RegisteredDecoders::new();
-    nihav_register_all_codecs(&mut dec_reg);
+    nihav_register_all_decoders(&mut dec_reg);
 
     dmx_fact = dmx_reg.find_demuxer(dmx_name).unwrap();
     br.seek(SeekFrom::Start(0)).unwrap();
     let mut dmx = create_demuxer(dmx_fact, &mut br).unwrap();
 
-    if seek_time > 0 {
+    if seek_time != NATimePoint::None {
         let ret = dmx.seek(seek_time);
         if ret.is_err() {
 println!(" seek error {:?}", ret.err().unwrap());
@@ -225,7 +247,6 @@ println!("stream {} - {} {}", i, s, info.get_name());
             }
         } else {
             decs.push(None);
-panic!("decoder {} not found", info.get_name());
         }
         if !has_out {
             writers.push(Outputter::None);
@@ -259,7 +280,7 @@ panic!("decoder {} not found", info.get_name());
                         };
                     }
                 },
-                Err(DecoderError::MissingReference) if seek_time > 0 => {
+                Err(DecoderError::MissingReference) if seek_time != NATimePoint::None => {
                     println!("ignoring missing ref");
                 },
                 Err(reason) => {
@@ -269,7 +290,7 @@ panic!("decoder {} not found", info.get_name());
                     }
                 },
             };
-            if pkt.get_pts() != None && lastpts.is_some() && pkt.get_pts() >= lastpts { break; }
+            if pkt.get_pts() != None && lastpts != NATimePoint::None && !pkt.ts.less_than(lastpts) { break; }
         }
     }
 //panic!("end");