]>
Commit | Line | Data |
---|---|---|
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 = ls; | |
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 | } |