| 1 | use frame::*; |
| 2 | use std::rc::Rc; |
| 3 | use std::cell::RefCell; |
| 4 | use io::byteio::ByteIOError; |
| 5 | use io::bitreader::BitReaderError; |
| 6 | use io::codebook::CodebookError; |
| 7 | |
| 8 | #[derive(Debug,Clone,Copy,PartialEq)] |
| 9 | #[allow(dead_code)] |
| 10 | pub enum DecoderError { |
| 11 | NoFrame, |
| 12 | TryAgain, |
| 13 | InvalidData, |
| 14 | ShortData, |
| 15 | MissingReference, |
| 16 | NotImplemented, |
| 17 | Bug, |
| 18 | } |
| 19 | |
| 20 | type DecoderResult<T> = Result<T, DecoderError>; |
| 21 | |
| 22 | impl From<ByteIOError> for DecoderError { |
| 23 | fn from(_: ByteIOError) -> Self { DecoderError::ShortData } |
| 24 | } |
| 25 | |
| 26 | impl From<BitReaderError> for DecoderError { |
| 27 | fn from(e: BitReaderError) -> Self { |
| 28 | match e { |
| 29 | BitReaderError::BitstreamEnd => DecoderError::ShortData, |
| 30 | _ => DecoderError::InvalidData, |
| 31 | } |
| 32 | } |
| 33 | } |
| 34 | |
| 35 | impl From<CodebookError> for DecoderError { |
| 36 | fn from(_: CodebookError) -> Self { DecoderError::InvalidData } |
| 37 | } |
| 38 | |
| 39 | #[allow(dead_code)] |
| 40 | struct HAMShuffler { |
| 41 | lastframe: Option<NAVideoBuffer<u8>>, |
| 42 | } |
| 43 | |
| 44 | impl HAMShuffler { |
| 45 | #[allow(dead_code)] |
| 46 | fn new() -> Self { HAMShuffler { lastframe: None } } |
| 47 | #[allow(dead_code)] |
| 48 | fn clear(&mut self) { self.lastframe = None; } |
| 49 | #[allow(dead_code)] |
| 50 | fn add_frame(&mut self, buf: NAVideoBuffer<u8>) { |
| 51 | self.lastframe = Some(buf); |
| 52 | } |
| 53 | #[allow(dead_code)] |
| 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(); |
| 58 | Some(newfrm) |
| 59 | } else { |
| 60 | None |
| 61 | } |
| 62 | } |
| 63 | #[allow(dead_code)] |
| 64 | fn get_output_frame(&mut self) -> Option<NAVideoBuffer<u8>> { |
| 65 | match self.lastframe { |
| 66 | Some(ref frm) => Some(frm.clone()), |
| 67 | None => None, |
| 68 | } |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | #[allow(dead_code)] |
| 73 | struct IPShuffler { |
| 74 | lastframe: Option<NAVideoBuffer<u8>>, |
| 75 | } |
| 76 | |
| 77 | impl IPShuffler { |
| 78 | #[allow(dead_code)] |
| 79 | fn new() -> Self { IPShuffler { lastframe: None } } |
| 80 | #[allow(dead_code)] |
| 81 | fn clear(&mut self) { self.lastframe = None; } |
| 82 | #[allow(dead_code)] |
| 83 | fn add_frame(&mut self, buf: NAVideoBuffer<u8>) { |
| 84 | self.lastframe = Some(buf); |
| 85 | } |
| 86 | #[allow(dead_code)] |
| 87 | fn get_ref(&mut self) -> Option<NAVideoBuffer<u8>> { |
| 88 | if let Some(ref frm) = self.lastframe { |
| 89 | Some(frm.clone()) |
| 90 | } else { |
| 91 | None |
| 92 | } |
| 93 | } |
| 94 | } |
| 95 | |
| 96 | pub trait NADecoder { |
| 97 | fn init(&mut self, info: Rc<NACodecInfo>) -> DecoderResult<()>; |
| 98 | fn decode(&mut self, pkt: &NAPacket) -> DecoderResult<NAFrameRef>; |
| 99 | } |
| 100 | |
| 101 | #[derive(Clone,Copy)] |
| 102 | pub struct DecoderInfo { |
| 103 | name: &'static str, |
| 104 | get_decoder: fn () -> Box<NADecoder>, |
| 105 | } |
| 106 | |
| 107 | macro_rules! validate { |
| 108 | ($a:expr) => { if !$a { return Err(DecoderError::InvalidData); } }; |
| 109 | } |
| 110 | |
| 111 | #[cfg(feature="decoder_gdvvid")] |
| 112 | mod gremlinvideo; |
| 113 | #[cfg(feature="decoder_indeo2")] |
| 114 | mod indeo2; |
| 115 | #[cfg(feature="decoder_indeo3")] |
| 116 | mod indeo3; |
| 117 | #[cfg(feature="decoder_pcm")] |
| 118 | mod pcm; |
| 119 | |
| 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 }, |
| 127 | |
| 128 | #[cfg(feature="decoder_pcm")] |
| 129 | DecoderInfo { name: "pcm", get_decoder: pcm::get_decoder }, |
| 130 | ]; |
| 131 | |
| 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); |
| 136 | } |
| 137 | } |
| 138 | None |
| 139 | } |
| 140 | |
| 141 | #[cfg(test)] |
| 142 | use std::fs::{File, OpenOptions}; |
| 143 | #[cfg(test)] |
| 144 | use std::io::prelude::*; |
| 145 | |
| 146 | #[cfg(test)] |
| 147 | #[allow(dead_code)] |
| 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); |
| 155 | let tot_h = h + h2; |
| 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); |
| 160 | let mut idx = 0; |
| 161 | let mut idx2 = w; |
| 162 | let mut pad: Vec<u8> = Vec::with_capacity((w - w2 * 2) / 2); |
| 163 | pad.resize((w - w2 * 2) / 2, 0xFF); |
| 164 | for _ in 0..h { |
| 165 | let line = &dta[idx..idx2]; |
| 166 | ofile.write_all(line).unwrap(); |
| 167 | idx += ls; |
| 168 | idx2 += ls; |
| 169 | } |
| 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); |
| 174 | for _ in 0..h2 { |
| 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(); |
| 179 | |
| 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(); |
| 184 | |
| 185 | base1 += stride1; |
| 186 | base2 += stride2; |
| 187 | } |
| 188 | } |
| 189 | |
| 190 | #[cfg(test)] |
| 191 | #[allow(dead_code)] |
| 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); |
| 203 | let mut idx = 0; |
| 204 | let mut line: Vec<u8> = Vec::with_capacity(w * 3); |
| 205 | line.resize(w * 3, 0); |
| 206 | for _ in 0..h { |
| 207 | let src = &dta[idx..(idx+w)]; |
| 208 | for x in 0..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]; |
| 213 | } |
| 214 | ofile.write_all(line.as_slice()).unwrap(); |
| 215 | idx += ls; |
| 216 | } |
| 217 | } |
| 218 | |
| 219 | #[cfg(test)] |
| 220 | #[allow(dead_code)] |
| 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()), |
| 229 | _ => Ok(()), |
| 230 | }; |
| 231 | } |