| 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 | TryAgain, |
| 12 | InvalidData, |
| 13 | ShortData, |
| 14 | MissingReference, |
| 15 | NotImplemented, |
| 16 | Bug, |
| 17 | } |
| 18 | |
| 19 | type DecoderResult<T> = Result<T, DecoderError>; |
| 20 | |
| 21 | impl From<ByteIOError> for DecoderError { |
| 22 | fn from(_: ByteIOError) -> Self { DecoderError::ShortData } |
| 23 | } |
| 24 | |
| 25 | impl From<BitReaderError> for DecoderError { |
| 26 | fn from(e: BitReaderError) -> Self { |
| 27 | match e { |
| 28 | BitReaderError::BitstreamEnd => DecoderError::ShortData, |
| 29 | _ => DecoderError::InvalidData, |
| 30 | } |
| 31 | } |
| 32 | } |
| 33 | |
| 34 | impl From<CodebookError> for DecoderError { |
| 35 | fn from(_: CodebookError) -> Self { DecoderError::InvalidData } |
| 36 | } |
| 37 | |
| 38 | #[allow(dead_code)] |
| 39 | struct HAMShuffler { |
| 40 | lastframe: Option<NAVideoBuffer<u8>>, |
| 41 | } |
| 42 | |
| 43 | impl HAMShuffler { |
| 44 | #[allow(dead_code)] |
| 45 | fn new() -> Self { HAMShuffler { lastframe: None } } |
| 46 | #[allow(dead_code)] |
| 47 | fn clear(&mut self) { self.lastframe = None; } |
| 48 | #[allow(dead_code)] |
| 49 | fn add_frame(&mut self, buf: NAVideoBuffer<u8>) { |
| 50 | self.lastframe = Some(buf); |
| 51 | } |
| 52 | #[allow(dead_code)] |
| 53 | fn clone_ref(&mut self) -> Option<NAVideoBuffer<u8>> { |
| 54 | if let Some(ref mut frm) = self.lastframe { |
| 55 | let newfrm = frm.copy_buffer(); |
| 56 | *frm = newfrm.clone(); |
| 57 | Some(newfrm) |
| 58 | } else { |
| 59 | None |
| 60 | } |
| 61 | } |
| 62 | #[allow(dead_code)] |
| 63 | fn get_output_frame(&mut self) -> Option<NAVideoBuffer<u8>> { |
| 64 | match self.lastframe { |
| 65 | Some(ref frm) => Some(frm.clone()), |
| 66 | None => None, |
| 67 | } |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | #[allow(dead_code)] |
| 72 | struct IPShuffler { |
| 73 | lastframe: Option<NAVideoBuffer<u8>>, |
| 74 | } |
| 75 | |
| 76 | impl IPShuffler { |
| 77 | #[allow(dead_code)] |
| 78 | fn new() -> Self { IPShuffler { lastframe: None } } |
| 79 | #[allow(dead_code)] |
| 80 | fn clear(&mut self) { self.lastframe = None; } |
| 81 | #[allow(dead_code)] |
| 82 | fn add_frame(&mut self, buf: NAVideoBuffer<u8>) { |
| 83 | self.lastframe = Some(buf); |
| 84 | } |
| 85 | #[allow(dead_code)] |
| 86 | fn get_ref(&mut self) -> Option<NAVideoBuffer<u8>> { |
| 87 | if let Some(ref frm) = self.lastframe { |
| 88 | Some(frm.clone()) |
| 89 | } else { |
| 90 | None |
| 91 | } |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | pub trait NADecoder { |
| 96 | fn init(&mut self, info: Rc<NACodecInfo>) -> DecoderResult<()>; |
| 97 | fn decode(&mut self, pkt: &NAPacket) -> DecoderResult<NAFrameRef>; |
| 98 | } |
| 99 | |
| 100 | #[derive(Clone,Copy)] |
| 101 | pub struct DecoderInfo { |
| 102 | name: &'static str, |
| 103 | get_decoder: fn () -> Box<NADecoder>, |
| 104 | } |
| 105 | |
| 106 | macro_rules! validate { |
| 107 | ($a:expr) => { if !$a { return Err(DecoderError::InvalidData); } }; |
| 108 | } |
| 109 | |
| 110 | #[cfg(feature="decoder_gdvvid")] |
| 111 | mod gremlinvideo; |
| 112 | #[cfg(feature="decoder_indeo2")] |
| 113 | mod indeo2; |
| 114 | #[cfg(feature="decoder_indeo3")] |
| 115 | mod indeo3; |
| 116 | #[cfg(feature="decoder_pcm")] |
| 117 | mod pcm; |
| 118 | |
| 119 | const DECODERS: &[DecoderInfo] = &[ |
| 120 | #[cfg(feature="decoder_gdvvid")] |
| 121 | DecoderInfo { name: "gdv-video", get_decoder: gremlinvideo::get_decoder }, |
| 122 | #[cfg(feature="decoder_indeo2")] |
| 123 | DecoderInfo { name: "indeo2", get_decoder: indeo2::get_decoder }, |
| 124 | #[cfg(feature="decoder_indeo3")] |
| 125 | DecoderInfo { name: "indeo3", get_decoder: indeo3::get_decoder }, |
| 126 | |
| 127 | #[cfg(feature="decoder_pcm")] |
| 128 | DecoderInfo { name: "pcm", get_decoder: pcm::get_decoder }, |
| 129 | ]; |
| 130 | |
| 131 | pub fn find_decoder(name: &str) -> Option<fn () -> Box<NADecoder>> { |
| 132 | for &dec in DECODERS { |
| 133 | if dec.name == name { |
| 134 | return Some(dec.get_decoder); |
| 135 | } |
| 136 | } |
| 137 | None |
| 138 | } |
| 139 | |
| 140 | #[cfg(test)] |
| 141 | use std::fs::{File, OpenOptions}; |
| 142 | #[cfg(test)] |
| 143 | use std::io::prelude::*; |
| 144 | |
| 145 | #[cfg(test)] |
| 146 | #[allow(dead_code)] |
| 147 | fn write_pgmyuv(pfx: &str, strno: usize, num: u64, frmref: NAFrameRef) { |
| 148 | let frm = frmref.borrow(); |
| 149 | let name = format!("assets/{}out{:02}_{:04}.pgm", pfx, strno, num); |
| 150 | let mut ofile = File::create(name).unwrap(); |
| 151 | let buf = frm.get_buffer().get_vbuf().unwrap(); |
| 152 | let (w, h) = buf.get_dimensions(0); |
| 153 | let (w2, h2) = buf.get_dimensions(1); |
| 154 | let tot_h = h + h2; |
| 155 | let hdr = format!("P5\n{} {}\n255\n", w, tot_h); |
| 156 | ofile.write_all(hdr.as_bytes()).unwrap(); |
| 157 | let dta = buf.get_data(); |
| 158 | let ls = buf.get_stride(0); |
| 159 | let mut idx = 0; |
| 160 | let mut idx2 = ls; |
| 161 | let mut pad: Vec<u8> = Vec::with_capacity((w - w2 * 2) / 2); |
| 162 | pad.resize((w - w2 * 2) / 2, 0xFF); |
| 163 | for _ in 0..h { |
| 164 | let line = &dta[idx..idx2]; |
| 165 | ofile.write_all(line).unwrap(); |
| 166 | idx += ls; |
| 167 | idx2 += ls; |
| 168 | } |
| 169 | let mut base1 = buf.get_offset(1); |
| 170 | let stride1 = buf.get_stride(1); |
| 171 | let mut base2 = buf.get_offset(2); |
| 172 | let stride2 = buf.get_stride(2); |
| 173 | for _ in 0..h2 { |
| 174 | let bend1 = base1 + w2; |
| 175 | let line = &dta[base1..bend1]; |
| 176 | ofile.write_all(line).unwrap(); |
| 177 | ofile.write_all(pad.as_slice()).unwrap(); |
| 178 | |
| 179 | let bend2 = base2 + w2; |
| 180 | let line = &dta[base2..bend2]; |
| 181 | ofile.write_all(line).unwrap(); |
| 182 | ofile.write_all(pad.as_slice()).unwrap(); |
| 183 | |
| 184 | base1 += stride1; |
| 185 | base2 += stride2; |
| 186 | } |
| 187 | } |
| 188 | |
| 189 | #[cfg(test)] |
| 190 | #[allow(dead_code)] |
| 191 | fn write_palppm(pfx: &str, strno: usize, num: u64, frmref: NAFrameRef) { |
| 192 | let frm = frmref.borrow(); |
| 193 | let name = format!("assets/{}out{:02}_{:04}.ppm", pfx, strno, num); |
| 194 | let mut ofile = File::create(name).unwrap(); |
| 195 | let buf = frm.get_buffer().get_vbuf().unwrap(); |
| 196 | let (w, h) = buf.get_dimensions(0); |
| 197 | let paloff = buf.get_offset(1); |
| 198 | let hdr = format!("P6\n{} {}\n255\n", w, h); |
| 199 | ofile.write_all(hdr.as_bytes()).unwrap(); |
| 200 | let dta = buf.get_data(); |
| 201 | let ls = buf.get_stride(0); |
| 202 | let mut idx = 0; |
| 203 | let mut line: Vec<u8> = Vec::with_capacity(w * 3); |
| 204 | line.resize(w * 3, 0); |
| 205 | for _ in 0..h { |
| 206 | let src = &dta[idx..(idx+w)]; |
| 207 | for x in 0..w { |
| 208 | let pix = src[x] as usize; |
| 209 | line[x * 3 + 0] = dta[paloff + pix * 3 + 2]; |
| 210 | line[x * 3 + 1] = dta[paloff + pix * 3 + 1]; |
| 211 | line[x * 3 + 2] = dta[paloff + pix * 3 + 0]; |
| 212 | } |
| 213 | ofile.write_all(line.as_slice()).unwrap(); |
| 214 | idx += ls; |
| 215 | } |
| 216 | } |
| 217 | |
| 218 | #[cfg(test)] |
| 219 | #[allow(dead_code)] |
| 220 | fn write_sound(pfx: &str, strno: usize, frmref: NAFrameRef, first: bool) { |
| 221 | let frm = frmref.borrow(); |
| 222 | let name = format!("assets/{}out{:02}.raw", pfx, strno); |
| 223 | let mut file = if first { File::create(name).unwrap() } else { OpenOptions::new().write(true).append(true).open(name).unwrap() }; |
| 224 | let btype = frm.get_buffer(); |
| 225 | let _ = match btype { |
| 226 | NABufferType::AudioU8(ref ab) => file.write_all(ab.get_data().as_ref()), |
| 227 | NABufferType::AudioPacked(ref ab) => file.write_all(ab.get_data().as_ref()), |
| 228 | _ => Ok(()), |
| 229 | }; |
| 230 | } |