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 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 }
41 lastframe: Option<NAVideoBuffer<u8>>,
46 fn new() -> Self { HAMShuffler { lastframe: None } }
48 fn clear(&mut self) { self.lastframe = None; }
50 fn add_frame(&mut self, buf: NAVideoBuffer<u8>) {
51 self.lastframe = Some(buf);
54 fn clone_ref(&mut self) -> Option<NAVideoBuffer<u8>> {
55 if let Some(ref mut frm) = self.lastframe {
56 let newfrm = frm.copy_buffer();
57 *frm = newfrm.clone();
64 fn get_output_frame(&mut self) -> Option<NAVideoBuffer<u8>> {
65 match self.lastframe {
66 Some(ref frm) => Some(frm.clone()),
74 lastframe: Option<NAVideoBuffer<u8>>,
79 fn new() -> Self { IPShuffler { lastframe: None } }
81 fn clear(&mut self) { self.lastframe = None; }
83 fn add_frame(&mut self, buf: NAVideoBuffer<u8>) {
84 self.lastframe = Some(buf);
87 fn get_ref(&mut self) -> Option<NAVideoBuffer<u8>> {
88 if let Some(ref frm) = self.lastframe {
97 fn init(&mut self, info: Rc<NACodecInfo>) -> DecoderResult<()>;
98 fn decode(&mut self, pkt: &NAPacket) -> DecoderResult<NAFrameRef>;
101 #[derive(Clone,Copy)]
102 pub struct DecoderInfo {
104 get_decoder: fn () -> Box<NADecoder>,
107 macro_rules! validate {
108 ($a:expr) => { if !$a { return Err(DecoderError::InvalidData); } };
111 #[cfg(feature="decoder_gdvvid")]
113 #[cfg(feature="decoder_indeo2")]
115 #[cfg(feature="decoder_indeo3")]
117 #[cfg(feature="decoder_pcm")]
120 const DECODERS: &[DecoderInfo] = &[
121 #[cfg(feature="decoder_gdvvid")]
122 DecoderInfo { name: "gdv-video", get_decoder: gremlinvideo::get_decoder },
123 #[cfg(feature="decoder_indeo2")]
124 DecoderInfo { name: "indeo2", get_decoder: indeo2::get_decoder },
125 #[cfg(feature="decoder_indeo3")]
126 DecoderInfo { name: "indeo3", get_decoder: indeo3::get_decoder },
128 #[cfg(feature="decoder_pcm")]
129 DecoderInfo { name: "pcm", get_decoder: pcm::get_decoder },
132 pub fn find_decoder(name: &str) -> Option<fn () -> Box<NADecoder>> {
133 for &dec in DECODERS {
134 if dec.name == name {
135 return Some(dec.get_decoder);
142 use std::fs::{File, OpenOptions};
144 use std::io::prelude::*;
148 fn write_pgmyuv(pfx: &str, strno: usize, num: u64, frmref: NAFrameRef) {
149 let frm = frmref.borrow();
150 let name = format!("assets/{}out{:02}_{:04}.pgm", pfx, strno, num);
151 let mut ofile = File::create(name).unwrap();
152 let buf = frm.get_buffer().get_vbuf().unwrap();
153 let (w, h) = buf.get_dimensions(0);
154 let (w2, h2) = buf.get_dimensions(1);
156 let hdr = format!("P5\n{} {}\n255\n", w, tot_h);
157 ofile.write_all(hdr.as_bytes()).unwrap();
158 let dta = buf.get_data();
159 let ls = buf.get_stride(0);
162 let mut pad: Vec<u8> = Vec::with_capacity((w - w2 * 2) / 2);
163 pad.resize((w - w2 * 2) / 2, 0xFF);
165 let line = &dta[idx..idx2];
166 ofile.write_all(line).unwrap();
170 let mut base1 = buf.get_offset(1);
171 let stride1 = buf.get_stride(1);
172 let mut base2 = buf.get_offset(2);
173 let stride2 = buf.get_stride(2);
175 let bend1 = base1 + w2;
176 let line = &dta[base1..bend1];
177 ofile.write_all(line).unwrap();
178 ofile.write_all(pad.as_slice()).unwrap();
180 let bend2 = base2 + w2;
181 let line = &dta[base2..bend2];
182 ofile.write_all(line).unwrap();
183 ofile.write_all(pad.as_slice()).unwrap();
192 fn write_palppm(pfx: &str, strno: usize, num: u64, frmref: NAFrameRef) {
193 let frm = frmref.borrow();
194 let name = format!("assets/{}out{:02}_{:04}.ppm", pfx, strno, num);
195 let mut ofile = File::create(name).unwrap();
196 let buf = frm.get_buffer().get_vbuf().unwrap();
197 let (w, h) = buf.get_dimensions(0);
198 let paloff = buf.get_offset(1);
199 let hdr = format!("P6\n{} {}\n255\n", w, h);
200 ofile.write_all(hdr.as_bytes()).unwrap();
201 let dta = buf.get_data();
202 let ls = buf.get_stride(0);
204 let mut line: Vec<u8> = Vec::with_capacity(w * 3);
205 line.resize(w * 3, 0);
207 let src = &dta[idx..(idx+w)];
209 let pix = src[x] as usize;
210 line[x * 3 + 0] = dta[paloff + pix * 3 + 2];
211 line[x * 3 + 1] = dta[paloff + pix * 3 + 1];
212 line[x * 3 + 2] = dta[paloff + pix * 3 + 0];
214 ofile.write_all(line.as_slice()).unwrap();
221 fn write_sound(pfx: &str, strno: usize, frmref: NAFrameRef, first: bool) {
222 let frm = frmref.borrow();
223 let name = format!("assets/{}out{:02}.raw", pfx, strno);
224 let mut file = if first { File::create(name).unwrap() } else { OpenOptions::new().write(true).append(true).open(name).unwrap() };
225 let btype = frm.get_buffer();
226 let _ = match btype {
227 NABufferType::AudioU8(ref ab) => file.write_all(ab.get_data().as_ref()),
228 NABufferType::AudioPacked(ref ab) => file.write_all(ab.get_data().as_ref()),