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