3 use std::cell::RefCell;
4 use io::byteio::ByteIOError;
5 use io::bitreader::BitReaderError;
6 use io::codebook::CodebookError;
8 #[derive(Debug,Clone,Copy,PartialEq)]
10 pub enum DecoderError {
20 pub type DecoderResult<T> = Result<T, DecoderError>;
22 impl From<ByteIOError> for DecoderError {
23 fn from(_: ByteIOError) -> Self { DecoderError::ShortData }
26 impl From<BitReaderError> for DecoderError {
27 fn from(e: BitReaderError) -> Self {
29 BitReaderError::BitstreamEnd => DecoderError::ShortData,
30 _ => DecoderError::InvalidData,
35 impl From<CodebookError> for DecoderError {
36 fn from(_: CodebookError) -> Self { DecoderError::InvalidData }
39 macro_rules! validate {
40 ($a:expr) => { if !$a { return Err(DecoderError::InvalidData); } };
50 lastframe: Option<NAVideoBuffer<u8>>,
55 fn new() -> Self { HAMShuffler { lastframe: None } }
57 fn clear(&mut self) { self.lastframe = None; }
59 fn add_frame(&mut self, buf: NAVideoBuffer<u8>) {
60 self.lastframe = Some(buf);
63 fn clone_ref(&mut self) -> Option<NAVideoBuffer<u8>> {
64 if let Some(ref mut frm) = self.lastframe {
65 let newfrm = frm.copy_buffer();
66 *frm = newfrm.clone();
73 fn get_output_frame(&mut self) -> Option<NAVideoBuffer<u8>> {
74 match self.lastframe {
75 Some(ref frm) => Some(frm.clone()),
83 lastframe: Option<NAVideoBuffer<u8>>,
88 fn new() -> Self { IPShuffler { lastframe: None } }
90 fn clear(&mut self) { self.lastframe = None; }
92 fn add_frame(&mut self, buf: NAVideoBuffer<u8>) {
93 self.lastframe = Some(buf);
96 fn get_ref(&mut self) -> Option<NAVideoBuffer<u8>> {
97 if let Some(ref frm) = self.lastframe {
105 pub trait NADecoder {
106 fn init(&mut self, info: Rc<NACodecInfo>) -> DecoderResult<()>;
107 fn decode(&mut self, pkt: &NAPacket) -> DecoderResult<NAFrameRef>;
110 #[derive(Clone,Copy)]
111 pub struct DecoderInfo {
113 get_decoder: fn () -> Box<NADecoder>,
116 #[cfg(feature="decoder_gdvvid")]
118 #[cfg(feature="decoder_indeo2")]
120 #[cfg(feature="decoder_indeo3")]
124 #[cfg(feature="decoder_pcm")]
127 const DECODERS: &[DecoderInfo] = &[
128 #[cfg(feature="decoder_gdvvid")]
129 DecoderInfo { name: "gdv-video", get_decoder: gremlinvideo::get_decoder },
130 #[cfg(feature="decoder_indeo2")]
131 DecoderInfo { name: "indeo2", get_decoder: indeo2::get_decoder },
132 #[cfg(feature="decoder_indeo3")]
133 DecoderInfo { name: "indeo3", get_decoder: indeo3::get_decoder },
135 DecoderInfo { name: "intel263", get_decoder: intel263::get_decoder },
137 #[cfg(feature="decoder_pcm")]
138 DecoderInfo { name: "pcm", get_decoder: pcm::get_decoder },
141 pub fn find_decoder(name: &str) -> Option<fn () -> Box<NADecoder>> {
142 for &dec in DECODERS {
143 if dec.name == name {
144 return Some(dec.get_decoder);
151 use std::fs::{File, OpenOptions};
153 use std::io::prelude::*;
157 fn write_pgmyuv(pfx: &str, strno: usize, num: u64, frmref: NAFrameRef) {
158 let frm = frmref.borrow();
159 if let NABufferType::None = frm.get_buffer() { return; }
160 let name = format!("assets/{}out{:02}_{:04}.pgm", pfx, strno, num);
161 let mut ofile = File::create(name).unwrap();
162 let buf = frm.get_buffer().get_vbuf().unwrap();
163 let (w, h) = buf.get_dimensions(0);
164 let (w2, h2) = buf.get_dimensions(1);
166 let hdr = format!("P5\n{} {}\n255\n", w, tot_h);
167 ofile.write_all(hdr.as_bytes()).unwrap();
168 let dta = buf.get_data();
169 let ls = buf.get_stride(0);
172 let mut pad: Vec<u8> = Vec::with_capacity((w - w2 * 2) / 2);
173 pad.resize((w - w2 * 2) / 2, 0xFF);
175 let line = &dta[idx..idx2];
176 ofile.write_all(line).unwrap();
180 let mut base1 = buf.get_offset(1);
181 let stride1 = buf.get_stride(1);
182 let mut base2 = buf.get_offset(2);
183 let stride2 = buf.get_stride(2);
185 let bend1 = base1 + w2;
186 let line = &dta[base1..bend1];
187 ofile.write_all(line).unwrap();
188 ofile.write_all(pad.as_slice()).unwrap();
190 let bend2 = base2 + w2;
191 let line = &dta[base2..bend2];
192 ofile.write_all(line).unwrap();
193 ofile.write_all(pad.as_slice()).unwrap();
202 fn write_palppm(pfx: &str, strno: usize, num: u64, frmref: NAFrameRef) {
203 let frm = frmref.borrow();
204 let name = format!("assets/{}out{:02}_{:04}.ppm", pfx, strno, num);
205 let mut ofile = File::create(name).unwrap();
206 let buf = frm.get_buffer().get_vbuf().unwrap();
207 let (w, h) = buf.get_dimensions(0);
208 let paloff = buf.get_offset(1);
209 let hdr = format!("P6\n{} {}\n255\n", w, h);
210 ofile.write_all(hdr.as_bytes()).unwrap();
211 let dta = buf.get_data();
212 let ls = buf.get_stride(0);
214 let mut line: Vec<u8> = Vec::with_capacity(w * 3);
215 line.resize(w * 3, 0);
217 let src = &dta[idx..(idx+w)];
219 let pix = src[x] as usize;
220 line[x * 3 + 0] = dta[paloff + pix * 3 + 2];
221 line[x * 3 + 1] = dta[paloff + pix * 3 + 1];
222 line[x * 3 + 2] = dta[paloff + pix * 3 + 0];
224 ofile.write_all(line.as_slice()).unwrap();
231 fn write_sound(pfx: &str, strno: usize, frmref: NAFrameRef, first: bool) {
232 let frm = frmref.borrow();
233 let name = format!("assets/{}out{:02}.raw", pfx, strno);
234 let mut file = if first { File::create(name).unwrap() } else { OpenOptions::new().write(true).append(true).open(name).unwrap() };
235 let btype = frm.get_buffer();
236 let _ = match btype {
237 NABufferType::AudioU8(ref ab) => file.write_all(ab.get_data().as_ref()),
238 NABufferType::AudioPacked(ref ab) => file.write_all(ab.get_data().as_ref()),