-#[cfg(feature="decoder_indeo2")]
-pub mod indeo2;
-
-use std::rc::Rc;
use frame::*;
-use demuxers::*;
+use std::rc::Rc;
+use std::cell::RefCell;
use io::byteio::ByteIOError;
use io::bitreader::BitReaderError;
use io::codebook::CodebookError;
#[derive(Debug,Clone,Copy,PartialEq)]
#[allow(dead_code)]
pub enum DecoderError {
+ NoFrame,
+ TryAgain,
InvalidData,
ShortData,
MissingReference,
Bug,
}
-type DecoderResult<T> = Result<T, DecoderError>;
+pub type DecoderResult<T> = Result<T, DecoderError>;
impl From<ByteIOError> for DecoderError {
fn from(_: ByteIOError) -> Self { DecoderError::ShortData }
fn from(_: CodebookError) -> Self { DecoderError::InvalidData }
}
+macro_rules! validate {
+ ($a:expr) => { if !$a { return Err(DecoderError::InvalidData); } };
+}
+
+#[allow(dead_code)]
+struct HAMShuffler {
+ lastframe: Option<NAVideoBuffer<u8>>,
+}
+
+impl HAMShuffler {
+ #[allow(dead_code)]
+ fn new() -> Self { HAMShuffler { lastframe: None } }
+ #[allow(dead_code)]
+ fn clear(&mut self) { self.lastframe = None; }
+ #[allow(dead_code)]
+ fn add_frame(&mut self, buf: NAVideoBuffer<u8>) {
+ self.lastframe = Some(buf);
+ }
+ #[allow(dead_code)]
+ fn clone_ref(&mut self) -> Option<NAVideoBuffer<u8>> {
+ if let Some(ref mut frm) = self.lastframe {
+ let newfrm = frm.copy_buffer();
+ *frm = newfrm.clone();
+ Some(newfrm)
+ } else {
+ None
+ }
+ }
+ #[allow(dead_code)]
+ fn get_output_frame(&mut self) -> Option<NAVideoBuffer<u8>> {
+ match self.lastframe {
+ Some(ref frm) => Some(frm.clone()),
+ None => None,
+ }
+ }
+}
+
+#[allow(dead_code)]
+struct IPShuffler {
+ lastframe: Option<NAVideoBuffer<u8>>,
+}
+
+impl IPShuffler {
+ #[allow(dead_code)]
+ fn new() -> Self { IPShuffler { lastframe: None } }
+ #[allow(dead_code)]
+ fn clear(&mut self) { self.lastframe = None; }
+ #[allow(dead_code)]
+ fn add_frame(&mut self, buf: NAVideoBuffer<u8>) {
+ self.lastframe = Some(buf);
+ }
+ #[allow(dead_code)]
+ fn get_ref(&mut self) -> Option<NAVideoBuffer<u8>> {
+ if let Some(ref frm) = self.lastframe {
+ Some(frm.clone())
+ } else {
+ None
+ }
+ }
+}
+
pub trait NADecoder {
fn init(&mut self, info: Rc<NACodecInfo>) -> DecoderResult<()>;
- fn decode(&mut self, pkt: &NAPacket) -> DecoderResult<Rc<NAFrame>>;
+ fn decode(&mut self, pkt: &NAPacket) -> DecoderResult<NAFrameRef>;
+}
+
+#[derive(Clone,Copy)]
+pub struct DecoderInfo {
+ name: &'static str,
+ get_decoder: fn () -> Box<NADecoder>,
}
+#[cfg(feature="h263")]
+mod blockdsp;
+
+#[cfg(feature="decoder_gdvvid")]
+mod gremlinvideo;
+#[cfg(any(feature="decoder_indeo2", feature="decoder_indeo3"))]
+mod indeo;
+#[cfg(feature="h263")]
+mod h263;
+
+#[cfg(feature="decoder_pcm")]
+mod pcm;
+
+const DECODERS: &[DecoderInfo] = &[
+#[cfg(feature="decoder_gdvvid")]
+ DecoderInfo { name: "gdv-video", get_decoder: gremlinvideo::get_decoder },
+#[cfg(feature="decoder_indeo2")]
+ DecoderInfo { name: "indeo2", get_decoder: indeo::indeo2::get_decoder },
+#[cfg(feature="decoder_indeo3")]
+ DecoderInfo { name: "indeo3", get_decoder: indeo::indeo3::get_decoder },
+#[cfg(feature="decoder_intel263")]
+ DecoderInfo { name: "intel263", get_decoder: h263::intel263::get_decoder },
+
+#[cfg(feature="decoder_pcm")]
+ DecoderInfo { name: "pcm", get_decoder: pcm::get_decoder },
+];
+
+pub fn find_decoder(name: &str) -> Option<fn () -> Box<NADecoder>> {
+ for &dec in DECODERS {
+ if dec.name == name {
+ return Some(dec.get_decoder);
+ }
+ }
+ None
+}
+
+#[cfg(test)]
+use std::fs::{File, OpenOptions};
+#[cfg(test)]
+use std::io::prelude::*;
+
+#[cfg(test)]
+#[allow(dead_code)]
+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!("assets/{}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;
+ }
+}
+
+#[cfg(test)]
+#[allow(dead_code)]
+fn write_palppm(pfx: &str, strno: usize, num: u64, frmref: NAFrameRef) {
+ let frm = frmref.borrow();
+ let name = format!("assets/{}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;
+ }
+}
+
+#[cfg(test)]
+#[allow(dead_code)]
+fn write_sound(pfx: &str, strno: usize, frmref: NAFrameRef, first: bool) {
+ let frm = frmref.borrow();
+ let name = format!("assets/{}out{:02}.raw", pfx, strno);
+ let mut file = if first { File::create(name).unwrap() } else { OpenOptions::new().write(true).append(true).open(name).unwrap() };
+ let btype = frm.get_buffer();
+ let _ = match btype {
+ NABufferType::AudioU8(ref ab) => file.write_all(ab.get_data().as_ref()),
+ NABufferType::AudioPacked(ref ab) => file.write_all(ab.get_data().as_ref()),
+ _ => Ok(()),
+ };
+}