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Commit | Line | Data |
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77d06de2 | 1 | use frame::*; |
88c03b61 KS |
2 | use std::rc::Rc; |
3 | use std::cell::RefCell; | |
77d06de2 KS |
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 { | |
6d3bb0b2 | 11 | NoFrame, |
e35062e7 | 12 | AllocError, |
503374e7 | 13 | TryAgain, |
77d06de2 KS |
14 | InvalidData, |
15 | ShortData, | |
16 | MissingReference, | |
17 | NotImplemented, | |
18 | Bug, | |
19 | } | |
20 | ||
cf64af13 | 21 | pub type DecoderResult<T> = Result<T, DecoderError>; |
77d06de2 KS |
22 | |
23 | impl From<ByteIOError> for DecoderError { | |
24 | fn from(_: ByteIOError) -> Self { DecoderError::ShortData } | |
25 | } | |
26 | ||
27 | impl From<BitReaderError> for DecoderError { | |
28 | fn from(e: BitReaderError) -> Self { | |
29 | match e { | |
30 | BitReaderError::BitstreamEnd => DecoderError::ShortData, | |
31 | _ => DecoderError::InvalidData, | |
32 | } | |
33 | } | |
34 | } | |
35 | ||
36 | impl From<CodebookError> for DecoderError { | |
37 | fn from(_: CodebookError) -> Self { DecoderError::InvalidData } | |
38 | } | |
39 | ||
e35062e7 KS |
40 | impl From<AllocatorError> for DecoderError { |
41 | fn from(_: AllocatorError) -> Self { DecoderError::AllocError } | |
42 | } | |
43 | ||
cf64af13 | 44 | macro_rules! validate { |
2324f30b | 45 | ($a:expr) => { if !$a { println!("check failed at {}:{}", file!(), line!()); return Err(DecoderError::InvalidData); } }; |
cf64af13 KS |
46 | } |
47 | ||
88c03b61 KS |
48 | #[allow(dead_code)] |
49 | struct HAMShuffler { | |
22cb00db | 50 | lastframe: Option<NAVideoBuffer<u8>>, |
88c03b61 KS |
51 | } |
52 | ||
53 | impl HAMShuffler { | |
54 | #[allow(dead_code)] | |
55 | fn new() -> Self { HAMShuffler { lastframe: None } } | |
56 | #[allow(dead_code)] | |
57 | fn clear(&mut self) { self.lastframe = None; } | |
58 | #[allow(dead_code)] | |
22cb00db KS |
59 | fn add_frame(&mut self, buf: NAVideoBuffer<u8>) { |
60 | self.lastframe = Some(buf); | |
88c03b61 KS |
61 | } |
62 | #[allow(dead_code)] | |
22cb00db | 63 | fn clone_ref(&mut self) -> Option<NAVideoBuffer<u8>> { |
3bd541c8 | 64 | if let Some(ref mut frm) = self.lastframe { |
22cb00db | 65 | let newfrm = frm.copy_buffer(); |
3bd541c8 KS |
66 | *frm = newfrm.clone(); |
67 | Some(newfrm) | |
5c253468 KS |
68 | } else { |
69 | None | |
70 | } | |
88c03b61 KS |
71 | } |
72 | #[allow(dead_code)] | |
22cb00db | 73 | fn get_output_frame(&mut self) -> Option<NAVideoBuffer<u8>> { |
88c03b61 KS |
74 | match self.lastframe { |
75 | Some(ref frm) => Some(frm.clone()), | |
76 | None => None, | |
77 | } | |
78 | } | |
79 | } | |
80 | ||
3f29a2a8 KS |
81 | #[allow(dead_code)] |
82 | struct IPShuffler { | |
83 | lastframe: Option<NAVideoBuffer<u8>>, | |
84 | } | |
85 | ||
86 | impl IPShuffler { | |
87 | #[allow(dead_code)] | |
88 | fn new() -> Self { IPShuffler { lastframe: None } } | |
89 | #[allow(dead_code)] | |
90 | fn clear(&mut self) { self.lastframe = None; } | |
91 | #[allow(dead_code)] | |
92 | fn add_frame(&mut self, buf: NAVideoBuffer<u8>) { | |
93 | self.lastframe = Some(buf); | |
94 | } | |
95 | #[allow(dead_code)] | |
96 | fn get_ref(&mut self) -> Option<NAVideoBuffer<u8>> { | |
97 | if let Some(ref frm) = self.lastframe { | |
98 | Some(frm.clone()) | |
99 | } else { | |
100 | None | |
101 | } | |
102 | } | |
103 | } | |
104 | ||
77d06de2 KS |
105 | pub trait NADecoder { |
106 | fn init(&mut self, info: Rc<NACodecInfo>) -> DecoderResult<()>; | |
88c03b61 | 107 | fn decode(&mut self, pkt: &NAPacket) -> DecoderResult<NAFrameRef>; |
77d06de2 KS |
108 | } |
109 | ||
70259941 | 110 | #[derive(Clone,Copy)] |
2a4130ba | 111 | pub struct DecoderInfo { |
70259941 KS |
112 | name: &'static str, |
113 | get_decoder: fn () -> Box<NADecoder>, | |
114 | } | |
115 | ||
88c58b1b KS |
116 | #[cfg(feature="h263")] |
117 | mod blockdsp; | |
118 | ||
e120f8fd KS |
119 | #[cfg(feature="decoder_gdvvid")] |
120 | mod gremlinvideo; | |
01c971c5 | 121 | #[cfg(any(feature="decoder_indeo2", feature="decoder_indeo3", feature="decoder_indeo4", feature="decoder_indeo5", feature="decoder_imc"))] |
88c58b1b KS |
122 | mod indeo; |
123 | #[cfg(feature="h263")] | |
124 | mod h263; | |
cf64af13 | 125 | |
3f29a2a8 KS |
126 | #[cfg(feature="decoder_pcm")] |
127 | mod pcm; | |
128 | ||
2a4130ba | 129 | const DECODERS: &[DecoderInfo] = &[ |
e120f8fd KS |
130 | #[cfg(feature="decoder_gdvvid")] |
131 | DecoderInfo { name: "gdv-video", get_decoder: gremlinvideo::get_decoder }, | |
70259941 | 132 | #[cfg(feature="decoder_indeo2")] |
88c58b1b | 133 | DecoderInfo { name: "indeo2", get_decoder: indeo::indeo2::get_decoder }, |
3f29a2a8 | 134 | #[cfg(feature="decoder_indeo3")] |
88c58b1b | 135 | DecoderInfo { name: "indeo3", get_decoder: indeo::indeo3::get_decoder }, |
01c971c5 KS |
136 | #[cfg(feature="decoder_indeo4")] |
137 | DecoderInfo { name: "indeo4", get_decoder: indeo::indeo4::get_decoder }, | |
138 | #[cfg(feature="decoder_indeo5")] | |
139 | DecoderInfo { name: "indeo5", get_decoder: indeo::indeo5::get_decoder }, | |
88c58b1b KS |
140 | #[cfg(feature="decoder_intel263")] |
141 | DecoderInfo { name: "intel263", get_decoder: h263::intel263::get_decoder }, | |
2324f30b KS |
142 | #[cfg(feature="decoder_realvideo1")] |
143 | DecoderInfo { name: "realvideo1", get_decoder: h263::rv10::get_decoder }, | |
cf64af13 | 144 | |
3234da61 KS |
145 | #[cfg(feature="decoder_pcm")] |
146 | DecoderInfo { name: "pcm", get_decoder: pcm::get_decoder }, | |
e35062e7 KS |
147 | #[cfg(feature="decoder_imc")] |
148 | DecoderInfo { name: "imc", get_decoder: indeo::imc::get_decoder_imc }, | |
149 | #[cfg(feature="decoder_imc")] | |
150 | DecoderInfo { name: "iac", get_decoder: indeo::imc::get_decoder_iac }, | |
70259941 KS |
151 | ]; |
152 | ||
153 | pub fn find_decoder(name: &str) -> Option<fn () -> Box<NADecoder>> { | |
154 | for &dec in DECODERS { | |
155 | if dec.name == name { | |
156 | return Some(dec.get_decoder); | |
157 | } | |
158 | } | |
159 | None | |
160 | } |