update

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

diff --git a/src/frmwriter.rs b/src/frmwriter.rs
new file mode 100644 (file)
index 0000000..ac0c7b5
--- /dev/null
+++ b/src/frmwriter.rs
@@ -0,0 +1,74 @@
+extern crate nihav;
+
+use nihav::frame::*;
+use std::io::prelude::*;
+use std::fs::File;
+use std::cell::Ref;
+
+pub fn write_pgmyuv(pfx: &str, strno: usize, num: u64, frm: Ref<NAFrame>) {
+    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;
+    }
+}
+
+pub fn write_palppm(pfx: &str, strno: usize, num: u64, frm: Ref<NAFrame>) {
+    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;
+    }
+}