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1 | use std::fmt; | |
2 | use std::ops::{Add, AddAssign, Sub, SubAssign}; | |
3 | ||
4 | use frame::*; | |
5 | use std::rc::Rc; | |
6 | use std::cell::RefCell; | |
7 | use std::mem; | |
8 | use io::byteio::ByteIOError; | |
9 | use io::bitreader::BitReaderError; | |
10 | use io::codebook::CodebookError; | |
11 | ||
12 | #[derive(Debug,Clone,Copy,PartialEq)] | |
13 | #[allow(dead_code)] | |
14 | pub enum DecoderError { | |
15 | NoFrame, | |
16 | AllocError, | |
17 | TryAgain, | |
18 | InvalidData, | |
19 | ShortData, | |
20 | MissingReference, | |
21 | NotImplemented, | |
22 | Bug, | |
23 | } | |
24 | ||
25 | pub type DecoderResult<T> = Result<T, DecoderError>; | |
26 | ||
27 | impl From<ByteIOError> for DecoderError { | |
28 | fn from(_: ByteIOError) -> Self { DecoderError::ShortData } | |
29 | } | |
30 | ||
31 | impl From<BitReaderError> for DecoderError { | |
32 | fn from(e: BitReaderError) -> Self { | |
33 | match e { | |
34 | BitReaderError::BitstreamEnd => DecoderError::ShortData, | |
35 | _ => DecoderError::InvalidData, | |
36 | } | |
37 | } | |
38 | } | |
39 | ||
40 | impl From<CodebookError> for DecoderError { | |
41 | fn from(_: CodebookError) -> Self { DecoderError::InvalidData } | |
42 | } | |
43 | ||
44 | impl From<AllocatorError> for DecoderError { | |
45 | fn from(_: AllocatorError) -> Self { DecoderError::AllocError } | |
46 | } | |
47 | ||
48 | macro_rules! validate { | |
49 | ($a:expr) => { if !$a { println!("check failed at {}:{}", file!(), line!()); return Err(DecoderError::InvalidData); } }; | |
50 | } | |
51 | ||
52 | #[allow(dead_code)] | |
53 | struct HAMShuffler { | |
54 | lastframe: Option<NAVideoBuffer<u8>>, | |
55 | } | |
56 | ||
57 | impl HAMShuffler { | |
58 | #[allow(dead_code)] | |
59 | fn new() -> Self { HAMShuffler { lastframe: None } } | |
60 | #[allow(dead_code)] | |
61 | fn clear(&mut self) { self.lastframe = None; } | |
62 | #[allow(dead_code)] | |
63 | fn add_frame(&mut self, buf: NAVideoBuffer<u8>) { | |
64 | self.lastframe = Some(buf); | |
65 | } | |
66 | #[allow(dead_code)] | |
67 | fn clone_ref(&mut self) -> Option<NAVideoBuffer<u8>> { | |
68 | if let Some(ref mut frm) = self.lastframe { | |
69 | let newfrm = frm.copy_buffer(); | |
70 | *frm = newfrm.clone(); | |
71 | Some(newfrm) | |
72 | } else { | |
73 | None | |
74 | } | |
75 | } | |
76 | #[allow(dead_code)] | |
77 | fn get_output_frame(&mut self) -> Option<NAVideoBuffer<u8>> { | |
78 | match self.lastframe { | |
79 | Some(ref frm) => Some(frm.clone()), | |
80 | None => None, | |
81 | } | |
82 | } | |
83 | } | |
84 | ||
85 | #[allow(dead_code)] | |
86 | struct IPShuffler { | |
87 | lastframe: Option<NAVideoBuffer<u8>>, | |
88 | } | |
89 | ||
90 | impl IPShuffler { | |
91 | #[allow(dead_code)] | |
92 | fn new() -> Self { IPShuffler { lastframe: None } } | |
93 | #[allow(dead_code)] | |
94 | fn clear(&mut self) { self.lastframe = None; } | |
95 | #[allow(dead_code)] | |
96 | fn add_frame(&mut self, buf: NAVideoBuffer<u8>) { | |
97 | self.lastframe = Some(buf); | |
98 | } | |
99 | #[allow(dead_code)] | |
100 | fn get_ref(&mut self) -> Option<NAVideoBuffer<u8>> { | |
101 | if let Some(ref frm) = self.lastframe { | |
102 | Some(frm.clone()) | |
103 | } else { | |
104 | None | |
105 | } | |
106 | } | |
107 | } | |
108 | ||
109 | #[allow(dead_code)] | |
110 | struct IPBShuffler { | |
111 | lastframe: Option<NAVideoBuffer<u8>>, | |
112 | nextframe: Option<NAVideoBuffer<u8>>, | |
113 | } | |
114 | ||
115 | impl IPBShuffler { | |
116 | #[allow(dead_code)] | |
117 | fn new() -> Self { IPBShuffler { lastframe: None, nextframe: None } } | |
118 | #[allow(dead_code)] | |
119 | fn clear(&mut self) { self.lastframe = None; self.nextframe = None; } | |
120 | #[allow(dead_code)] | |
121 | fn add_frame(&mut self, buf: NAVideoBuffer<u8>) { | |
122 | mem::swap(&mut self.lastframe, &mut self.nextframe); | |
123 | self.lastframe = Some(buf); | |
124 | } | |
125 | #[allow(dead_code)] | |
126 | fn get_lastref(&mut self) -> Option<NAVideoBuffer<u8>> { | |
127 | if let Some(ref frm) = self.lastframe { | |
128 | Some(frm.clone()) | |
129 | } else { | |
130 | None | |
131 | } | |
132 | } | |
133 | #[allow(dead_code)] | |
134 | fn get_nextref(&mut self) -> Option<NAVideoBuffer<u8>> { | |
135 | if let Some(ref frm) = self.nextframe { | |
136 | Some(frm.clone()) | |
137 | } else { | |
138 | None | |
139 | } | |
140 | } | |
141 | #[allow(dead_code)] | |
142 | fn get_b_fwdref(&mut self) -> Option<NAVideoBuffer<u8>> { | |
143 | if let Some(ref frm) = self.nextframe { | |
144 | Some(frm.clone()) | |
145 | } else { | |
146 | None | |
147 | } | |
148 | } | |
149 | #[allow(dead_code)] | |
150 | fn get_b_bwdref(&mut self) -> Option<NAVideoBuffer<u8>> { | |
151 | if let Some(ref frm) = self.lastframe { | |
152 | Some(frm.clone()) | |
153 | } else { | |
154 | None | |
155 | } | |
156 | } | |
157 | } | |
158 | ||
159 | #[derive(Debug,Clone,Copy,PartialEq)] | |
160 | pub struct MV { | |
161 | pub x: i16, | |
162 | pub y: i16, | |
163 | } | |
164 | ||
165 | impl MV { | |
166 | pub fn new(x: i16, y: i16) -> Self { MV{ x: x, y: y } } | |
167 | pub fn pred(a: MV, b: MV, c: MV) -> Self { | |
168 | let x; | |
169 | if a.x < b.x { | |
170 | if b.x < c.x { | |
171 | x = b.x; | |
172 | } else { | |
173 | if a.x < c.x { x = c.x; } else { x = a.x; } | |
174 | } | |
175 | } else { | |
176 | if b.x < c.x { | |
177 | if a.x < c.x { x = a.x; } else { x = c.x; } | |
178 | } else { | |
179 | x = b.x; | |
180 | } | |
181 | } | |
182 | let y; | |
183 | if a.y < b.y { | |
184 | if b.y < c.y { | |
185 | y = b.y; | |
186 | } else { | |
187 | if a.y < c.y { y = c.y; } else { y = a.y; } | |
188 | } | |
189 | } else { | |
190 | if b.y < c.y { | |
191 | if a.y < c.y { y = a.y; } else { y = c.y; } | |
192 | } else { | |
193 | y = b.y; | |
194 | } | |
195 | } | |
196 | MV { x: x, y: y } | |
197 | } | |
198 | } | |
199 | ||
200 | pub const ZERO_MV: MV = MV { x: 0, y: 0 }; | |
201 | ||
202 | impl Add for MV { | |
203 | type Output = MV; | |
204 | fn add(self, other: MV) -> MV { MV { x: self.x + other.x, y: self.y + other.y } } | |
205 | } | |
206 | ||
207 | impl AddAssign for MV { | |
208 | fn add_assign(&mut self, other: MV) { self.x += other.x; self.y += other.y; } | |
209 | } | |
210 | ||
211 | impl Sub for MV { | |
212 | type Output = MV; | |
213 | fn sub(self, other: MV) -> MV { MV { x: self.x - other.x, y: self.y - other.y } } | |
214 | } | |
215 | ||
216 | impl SubAssign for MV { | |
217 | fn sub_assign(&mut self, other: MV) { self.x -= other.x; self.y -= other.y; } | |
218 | } | |
219 | ||
220 | impl fmt::Display for MV { | |
221 | fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { | |
222 | write!(f, "{},{}", self.x, self.y) | |
223 | } | |
224 | } | |
225 | ||
226 | ||
227 | pub trait NADecoder { | |
228 | fn init(&mut self, info: Rc<NACodecInfo>) -> DecoderResult<()>; | |
229 | fn decode(&mut self, pkt: &NAPacket) -> DecoderResult<NAFrameRef>; | |
230 | } | |
231 | ||
232 | #[derive(Clone,Copy)] | |
233 | pub struct DecoderInfo { | |
234 | name: &'static str, | |
235 | get_decoder: fn () -> Box<NADecoder>, | |
236 | } | |
237 | ||
238 | #[cfg(any(feature="h263", feature="decoder_realvideo3", feature="decoder_realvideo4"))] | |
239 | mod blockdsp; | |
240 | ||
241 | #[cfg(feature="decoder_clearvideo")] | |
242 | mod clearvideo; | |
243 | #[cfg(feature="decoder_gdvvid")] | |
244 | mod gremlinvideo; | |
245 | #[cfg(any(feature="decoder_indeo2", feature="decoder_indeo3", feature="decoder_indeo4", feature="decoder_indeo5", feature="decoder_imc"))] | |
246 | mod indeo; | |
247 | #[cfg(feature="h263")] | |
248 | mod h263; | |
249 | #[cfg(any(feature="decoder_realvideo3", feature="decoder_realvideo4", feature="decoder_realvideo6", feature="decoder_realaudio144", feature="decoder_realaudio288", feature="decoder_cook", feature="decoder_ralf"))] | |
250 | mod real; | |
251 | ||
252 | #[cfg(feature="decoder_aac")] | |
253 | mod aac; | |
254 | #[cfg(feature="decoder_atrac3")] | |
255 | mod atrac3; | |
256 | #[cfg(feature="decoder_pcm")] | |
257 | mod pcm; | |
258 | #[cfg(feature="decoder_sipro")] | |
259 | mod sipro; | |
260 | #[cfg(feature="decoder_ts102366")] | |
261 | mod ts102366; | |
262 | ||
263 | const DECODERS: &[DecoderInfo] = &[ | |
264 | #[cfg(feature="decoder_clearvideo")] | |
265 | DecoderInfo { name: "clearvideo", get_decoder: clearvideo::get_decoder }, | |
266 | #[cfg(feature="decoder_clearvideo")] | |
267 | DecoderInfo { name: "clearvideo_rm", get_decoder: clearvideo::get_decoder_rm }, | |
268 | #[cfg(feature="decoder_gdvvid")] | |
269 | DecoderInfo { name: "gdv-video", get_decoder: gremlinvideo::get_decoder }, | |
270 | #[cfg(feature="decoder_indeo2")] | |
271 | DecoderInfo { name: "indeo2", get_decoder: indeo::indeo2::get_decoder }, | |
272 | #[cfg(feature="decoder_indeo3")] | |
273 | DecoderInfo { name: "indeo3", get_decoder: indeo::indeo3::get_decoder }, | |
274 | #[cfg(feature="decoder_indeo4")] | |
275 | DecoderInfo { name: "indeo4", get_decoder: indeo::indeo4::get_decoder }, | |
276 | #[cfg(feature="decoder_indeo5")] | |
277 | DecoderInfo { name: "indeo5", get_decoder: indeo::indeo5::get_decoder }, | |
278 | #[cfg(feature="decoder_intel263")] | |
279 | DecoderInfo { name: "intel263", get_decoder: h263::intel263::get_decoder }, | |
280 | #[cfg(feature="decoder_realvideo1")] | |
281 | DecoderInfo { name: "realvideo1", get_decoder: h263::rv10::get_decoder }, | |
282 | #[cfg(feature="decoder_realvideo2")] | |
283 | DecoderInfo { name: "realvideo2", get_decoder: h263::rv20::get_decoder }, | |
284 | #[cfg(feature="decoder_realvideo3")] | |
285 | DecoderInfo { name: "realvideo3", get_decoder: real::rv30::get_decoder }, | |
286 | #[cfg(feature="decoder_realvideo4")] | |
287 | DecoderInfo { name: "realvideo4", get_decoder: real::rv40::get_decoder }, | |
288 | #[cfg(feature="decoder_realvideo6")] | |
289 | DecoderInfo { name: "realvideo6", get_decoder: real::rv60::get_decoder }, | |
290 | ||
291 | #[cfg(feature="decoder_pcm")] | |
292 | DecoderInfo { name: "pcm", get_decoder: pcm::get_decoder }, | |
293 | #[cfg(feature="decoder_imc")] | |
294 | DecoderInfo { name: "imc", get_decoder: indeo::imc::get_decoder_imc }, | |
295 | #[cfg(feature="decoder_imc")] | |
296 | DecoderInfo { name: "iac", get_decoder: indeo::imc::get_decoder_iac }, | |
297 | #[cfg(feature="decoder_realaudio144")] | |
298 | DecoderInfo { name: "ra14.4", get_decoder: real::ra144::get_decoder }, | |
299 | #[cfg(feature="decoder_realaudio288")] | |
300 | DecoderInfo { name: "ra28.8", get_decoder: real::ra288::get_decoder }, | |
301 | #[cfg(feature="decoder_sipro")] | |
302 | DecoderInfo { name: "sipro", get_decoder: sipro::get_decoder }, | |
303 | #[cfg(feature="decoder_ts102366")] | |
304 | DecoderInfo { name: "ac3", get_decoder: ts102366::get_decoder }, | |
305 | #[cfg(feature="decoder_cook")] | |
306 | DecoderInfo { name: "cook", get_decoder: real::cook::get_decoder }, | |
307 | #[cfg(feature="decoder_atrac3")] | |
308 | DecoderInfo { name: "atrac3", get_decoder: atrac3::get_decoder }, | |
309 | #[cfg(feature="decoder_aac")] | |
310 | DecoderInfo { name: "aac", get_decoder: aac::get_decoder }, | |
311 | #[cfg(feature="decoder_ralf")] | |
312 | DecoderInfo { name: "ralf", get_decoder: real::ralf::get_decoder }, | |
313 | ]; | |
314 | ||
315 | pub fn find_decoder(name: &str) -> Option<fn () -> Box<NADecoder>> { | |
316 | for &dec in DECODERS { | |
317 | if dec.name == name { | |
318 | return Some(dec.get_decoder); | |
319 | } | |
320 | } | |
321 | None | |
322 | } |