initial commit

diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644 (file)
index 0000000..9ffafdd
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,7 @@
+[package]
+name = "nihav-tool"
+version = "0.1.0"
+authors = ["Kostya Shishkov <kostya.shishkov@gmail.com>"]
+
+[dependencies]
+nihav = { path="/home/kst/devel/nihav" }
\ No newline at end of file

diff --git a/src/main.rs b/src/main.rs
new file mode 100644 (file)
index 0000000..2517b53
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,148 @@
+extern crate nihav;
+
+use std::io::prelude::*;
+use std::io::SeekFrom;
+use std::fs::File;
+use std::path::Path;
+use nihav::io::byteio::{FileReader, ByteReader};
+use nihav::frame::*;
+use nihav::codecs::*;
+use nihav::demuxers::*;
+use nihav::detect;
+use std::env;
+
+fn write_pgmyuv(pfx: &str, strno: usize, num: u64, frmref: NAFrameRef) {
+    let frm = frmref.borrow();
+    if let NABufferType::None = frm.get_buffer() { return; }
+    let name = format!("{}out{:02}_{:04}.pgm", pfx, strno, num);
+    let mut ofile = File::create(name).unwrap();
+    let buf = frm.get_buffer().get_vbuf().unwrap();
+    let (w, h) = buf.get_dimensions(0);
+    let (w2, h2) = buf.get_dimensions(1);
+    let tot_h = h + h2;
+    let hdr = format!("P5\n{} {}\n255\n", w, tot_h);
+    ofile.write_all(hdr.as_bytes()).unwrap();
+    let dta = buf.get_data();
+    let ls = buf.get_stride(0);
+    let mut idx = 0;
+    let mut idx2 = w;
+    let mut pad: Vec<u8> = Vec::with_capacity((w - w2 * 2) / 2);
+    pad.resize((w - w2 * 2) / 2, 0xFF);
+    for _ in 0..h {
+        let line = &dta[idx..idx2];
+        ofile.write_all(line).unwrap();
+        idx  += ls;
+        idx2 += ls;
+    }
+    let mut base1 = buf.get_offset(1);
+    let stride1 = buf.get_stride(1);
+    let mut base2 = buf.get_offset(2);
+    let stride2 = buf.get_stride(2);
+    for _ in 0..h2 {
+        let bend1 = base1 + w2;
+        let line = &dta[base1..bend1];
+        ofile.write_all(line).unwrap();
+        ofile.write_all(pad.as_slice()).unwrap();
+
+        let bend2 = base2 + w2;
+        let line = &dta[base2..bend2];
+        ofile.write_all(line).unwrap();
+        ofile.write_all(pad.as_slice()).unwrap();
+
+        base1 += stride1;
+        base2 += stride2;
+    }
+}
+
+fn write_palppm(pfx: &str, strno: usize, num: u64, frmref: NAFrameRef) {
+    let frm = frmref.borrow();
+    let name = format!("{}out{:02}_{:04}.ppm", pfx, strno, num);
+    let mut ofile = File::create(name).unwrap();
+    let buf = frm.get_buffer().get_vbuf().unwrap();
+    let (w, h) = buf.get_dimensions(0);
+    let paloff = buf.get_offset(1);
+    let hdr = format!("P6\n{} {}\n255\n", w, h);
+    ofile.write_all(hdr.as_bytes()).unwrap();
+    let dta = buf.get_data();
+    let ls = buf.get_stride(0);
+    let mut idx  = 0;
+    let mut line: Vec<u8> = Vec::with_capacity(w * 3);
+    line.resize(w * 3, 0);
+    for _ in 0..h {
+        let src = &dta[idx..(idx+w)];
+        for x in 0..w {
+            let pix = src[x] as usize;
+            line[x * 3 + 0] = dta[paloff + pix * 3 + 2];
+            line[x * 3 + 1] = dta[paloff + pix * 3 + 1];
+            line[x * 3 + 2] = dta[paloff + pix * 3 + 0];
+        }
+        ofile.write_all(line.as_slice()).unwrap();
+        idx  += ls;
+    }
+}
+
+fn main() {
+    let args: Vec<_> = env::args().collect();
+
+    if args.len() == 1 { return; }
+    let lastpts = if args.len() > 2 {
+                      Some(u64::from_str_radix(args[2].as_str(), 10).unwrap())
+                  } else { None };
+
+    let name = args[1].as_str();
+    let path = Path::new(name);
+    let mut file = File::open(path).unwrap();
+    let dmx_fact;
+    let mut fr = FileReader::new_read(&mut file);
+    let mut br = ByteReader::new(&mut fr);
+    let res = detect::detect_format(name, &mut br);
+    if res.is_none() {
+        println!("cannot detect format for {}", name);
+        return;
+    }
+    let (dmx_name, _) = res.unwrap();
+println!("trying demuxer {}", dmx_name);
+    dmx_fact = find_demuxer(dmx_name).unwrap();
+    br.seek(SeekFrom::Start(0)).unwrap();
+    let mut dmx = dmx_fact.new_demuxer(&mut br);
+    dmx.open().unwrap();
+
+    let mut decs: Vec<Option<Box<NADecoder>>> = Vec::new();
+    for i in 0..dmx.get_num_streams() {
+        let s = dmx.get_stream(i).unwrap();
+        let info = s.get_info();
+        let decfunc = find_decoder(info.get_name());
+        if !info.is_video() {
+            decs.push(None);
+        } else if let Some(df) = decfunc {
+            let mut dec = (df)();
+            dec.init(info).unwrap();
+            decs.push(Some(dec));
+        } else {
+panic!("decoder {} not found", info.get_name());
+        }
+    }
+
+    loop {
+        let pktres = dmx.get_frame();
+        if let Err(e) = pktres {
+            if e == DemuxerError::EOF { break; }
+        }
+        let pkt = pktres.unwrap();
+        let streamno = pkt.get_stream().get_id() as usize;
+        if let Some(ref mut dec) = decs[streamno] {
+            let frm = dec.decode(&pkt).unwrap();
+            if pkt.get_stream().get_info().is_video() {
+                if frm.borrow().get_frame_type() != FrameType::Skip {
+                    if frm.borrow().get_buffer().get_vbuf().unwrap().get_info().get_format().is_paletted() {
+                        write_palppm("", streamno, pkt.get_pts().unwrap(), frm);
+                    } else {
+                        write_pgmyuv("", streamno, pkt.get_pts().unwrap(), frm);
+                    }
+                }
+            }
+        }
+        if pkt.get_pts() != None && pkt.get_pts() == lastpts { break; }
+    }
+//panic!("end");
+}