Commit | Line | Data |
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57777a0a KS |
1 | use nihav_core::io::byteio::{ByteReader,MemoryReader}; |
2 | use nihav_core::formats::YUV420_FORMAT; | |
3 | use nihav_core::codecs::*; | |
4 | use nihav_codec_support::codecs::HAMShuffler; | |
5 | ||
6 | struct CinepakDecoder { | |
7 | info: NACodecInfoRef, | |
8 | frmmgr: HAMShuffler, | |
9 | cb_v1: [[u8; 6]; 256], | |
10 | cb_v4: [[u8; 6]; 256], | |
11 | } | |
12 | ||
13 | fn put_block(block: &[u8; 24], x: usize, y: usize, frm: &mut NASimpleVideoFrame<u8>) { | |
14 | let mut yoff = frm.offset[0] + x + y * frm.stride[0]; | |
15 | for i in 0..4 { | |
16 | for j in 0..4 { | |
17 | frm.data[yoff + j] = block[j + i * 4]; | |
18 | } | |
19 | yoff += frm.stride[0]; | |
20 | } | |
21 | let mut uoff = frm.offset[1] + x / 2 + y / 2 * frm.stride[1]; | |
22 | for i in 0..2 { | |
23 | for j in 0..2 { | |
24 | frm.data[uoff + j] = block[j + i * 2 + 16]; | |
25 | } | |
26 | uoff += frm.stride[1]; | |
27 | } | |
28 | let mut voff = frm.offset[2] + x / 2 + y / 2 * frm.stride[2]; | |
29 | for i in 0..2 { | |
30 | for j in 0..2 { | |
31 | frm.data[voff + j] = block[j + i * 2 + 20]; | |
32 | } | |
33 | voff += frm.stride[2]; | |
34 | } | |
35 | } | |
36 | ||
37 | impl CinepakDecoder { | |
38 | fn new() -> Self { | |
39 | CinepakDecoder { | |
40 | info: NACodecInfo::new_dummy(), | |
41 | frmmgr: HAMShuffler::new(), | |
42 | cb_v1: [[0; 6]; 256], | |
43 | cb_v4: [[0; 6]; 256], | |
44 | } | |
45 | } | |
46 | fn read_cb(br: &mut ByteReader, size: usize, cb: &mut [[u8; 6]; 256], is_yuv: bool) -> DecoderResult<()> { | |
47 | let cb_elem = if is_yuv { 6 } else { 4 }; | |
48 | let cb_size = (size - 4) / cb_elem; | |
49 | validate!(size - 4 == cb_size * cb_elem); | |
50 | validate!(cb_size <= 256); | |
51 | for i in 0..cb_size { | |
52 | br.read_buf(&mut cb[i][..cb_elem])?; | |
53 | if !is_yuv { | |
54 | cb[i][4] = 0x80; | |
55 | cb[i][5] = 0x80; | |
56 | } else { | |
57 | cb[i][4] ^= 0x80; | |
58 | cb[i][5] ^= 0x80; | |
59 | } | |
60 | } | |
61 | Ok(()) | |
62 | } | |
63 | fn read_cb_upd(br: &mut ByteReader, size: usize, cb: &mut [[u8; 6]; 256], is_yuv: bool) -> DecoderResult<()> { | |
64 | let cb_elem = if is_yuv { 6 } else { 4 }; | |
65 | let end = br.tell() + (size as u64) - 4; | |
66 | for i in (0..256).step_by(32) { | |
67 | if br.tell() >= end { | |
68 | break; | |
69 | } | |
70 | let upd = br.read_u32be()?; | |
71 | for j in 0..32 { | |
72 | if ((upd >> (31 - j)) & 1) != 0 { | |
73 | br.read_buf(&mut cb[i + j][..cb_elem])?; | |
74 | if !is_yuv { | |
75 | cb[i + j][4] = 0x80; | |
76 | cb[i + j][5] = 0x80; | |
77 | } else { | |
78 | cb[i + j][4] ^= 0x80; | |
79 | cb[i + j][5] ^= 0x80; | |
80 | } | |
81 | } | |
82 | } | |
83 | } | |
84 | validate!(br.tell() == end); | |
85 | Ok(()) | |
86 | } | |
87 | fn decode_strip(&mut self, src: &[u8], is_intra: bool, is_intra_strip: bool, xoff: usize, yoff: usize, xend: usize, yend: usize, frm: &mut NASimpleVideoFrame<u8>) -> DecoderResult<()> { | |
88 | let mut mr = MemoryReader::new_read(src); | |
89 | let mut br = ByteReader::new(&mut mr); | |
90 | let mut idx_pos = 0; | |
91 | let mut idx_size = 0; | |
92 | let mut v1_only = false; | |
93 | while br.left() > 0 { | |
94 | let id = br.read_byte()?; | |
95 | if (id & 0xF0) == 0x20 { | |
96 | validate!(((id & 1) != 0) ^ is_intra_strip); | |
97 | } | |
98 | let size = br.read_u24be()? as usize; | |
99 | validate!(size >= 4 && (size - 4 <= (br.left() as usize))); | |
100 | match id { | |
101 | 0x20 => Self::read_cb (&mut br, size, &mut self.cb_v4, true)?, | |
102 | 0x21 => Self::read_cb_upd(&mut br, size, &mut self.cb_v4, true)?, | |
103 | 0x22 => Self::read_cb (&mut br, size, &mut self.cb_v1, true)?, | |
104 | 0x23 => Self::read_cb_upd(&mut br, size, &mut self.cb_v1, true)?, | |
105 | 0x24 => Self::read_cb (&mut br, size, &mut self.cb_v4, false)?, | |
106 | 0x25 => Self::read_cb_upd(&mut br, size, &mut self.cb_v4, false)?, | |
107 | 0x26 => Self::read_cb (&mut br, size, &mut self.cb_v1, false)?, | |
108 | 0x27 => Self::read_cb_upd(&mut br, size, &mut self.cb_v1, false)?, | |
109 | 0x30 => { // intra indices | |
110 | validate!(idx_pos == 0); | |
111 | idx_pos = br.tell() as usize; | |
112 | idx_size = size - 4; | |
113 | br.read_skip(idx_size)?; | |
114 | }, | |
115 | 0x31 => { // inter indices | |
116 | validate!(!is_intra); | |
117 | validate!(idx_pos == 0); | |
118 | idx_pos = br.tell() as usize; | |
119 | idx_size = size - 4; | |
120 | br.read_skip(idx_size)?; | |
121 | }, | |
122 | 0x32 => { // V1-only blocks | |
123 | validate!(idx_pos == 0); | |
124 | idx_pos = br.tell() as usize; | |
125 | idx_size = size - 4; | |
126 | v1_only = true; | |
127 | br.read_skip(idx_size)?; | |
128 | }, | |
129 | _ => return Err(DecoderError::InvalidData), | |
130 | }; | |
131 | } | |
132 | validate!(idx_pos != 0); | |
133 | let mut mr = MemoryReader::new_read(&src[idx_pos..][..idx_size]); | |
134 | let mut br = ByteReader::new(&mut mr); | |
135 | ||
136 | let mut x = xoff; | |
137 | let mut y = yoff; | |
138 | let mut block = [0u8; 24]; | |
139 | while br.left() > 0 { | |
140 | let flags = if !v1_only { br.read_u32be()? } else { 0xFFFFFFFF }; | |
141 | let mut mask = 1 << 31; | |
142 | while mask > 0 { | |
143 | if !is_intra { | |
144 | let skip = (flags & mask) == 0; | |
145 | mask >>= 1; | |
146 | if skip { | |
147 | x += 4; | |
148 | if x >= xend { | |
149 | x = xoff; | |
150 | y += 4; | |
151 | if y == yend { | |
152 | return Ok(()); | |
153 | } | |
154 | } | |
155 | } | |
156 | continue; | |
157 | } | |
158 | if (flags & mask) == 0 { | |
159 | let idx = br.read_byte()? as usize; | |
160 | let cb = &self.cb_v1[idx]; | |
161 | block[ 0] = cb[0]; block[ 1] = cb[0]; block[ 2] = cb[1]; block[ 3] = cb[1]; | |
162 | block[ 4] = cb[0]; block[ 5] = cb[0]; block[ 6] = cb[1]; block[ 7] = cb[1]; | |
163 | block[ 8] = cb[2]; block[ 9] = cb[2]; block[10] = cb[3]; block[11] = cb[3]; | |
164 | block[12] = cb[2]; block[13] = cb[2]; block[14] = cb[3]; block[15] = cb[3]; | |
165 | block[16] = cb[4]; block[17] = cb[4]; | |
166 | block[18] = cb[4]; block[19] = cb[4]; | |
167 | block[20] = cb[5]; block[21] = cb[5]; | |
168 | block[22] = cb[5]; block[23] = cb[5]; | |
169 | } else { | |
170 | let idx0 = br.read_byte()? as usize; | |
171 | let cb0 = &self.cb_v4[idx0]; | |
172 | let idx1 = br.read_byte()? as usize; | |
173 | let cb1 = &self.cb_v4[idx1]; | |
174 | let idx2 = br.read_byte()? as usize; | |
175 | let cb2 = &self.cb_v4[idx2]; | |
176 | let idx3 = br.read_byte()? as usize; | |
177 | let cb3 = &self.cb_v4[idx3]; | |
178 | block[ 0] = cb0[0]; block[ 1] = cb0[1]; block[ 2] = cb1[0]; block[ 3] = cb1[1]; | |
179 | block[ 4] = cb0[2]; block[ 5] = cb0[3]; block[ 6] = cb1[2]; block[ 7] = cb1[3]; | |
180 | block[ 8] = cb2[0]; block[ 9] = cb2[1]; block[10] = cb3[0]; block[11] = cb3[1]; | |
181 | block[12] = cb2[2]; block[13] = cb2[3]; block[14] = cb3[2]; block[15] = cb3[3]; | |
182 | block[16] = cb0[4]; block[17] = cb1[4]; | |
183 | block[18] = cb2[4]; block[19] = cb3[4]; | |
184 | block[20] = cb0[5]; block[21] = cb1[5]; | |
185 | block[22] = cb2[5]; block[23] = cb3[5]; | |
186 | } | |
187 | mask >>= 1; | |
188 | put_block(&block, x, y, frm); | |
189 | x += 4; | |
190 | if x >= xend { | |
191 | x = xoff; | |
192 | y += 4; | |
193 | if y == yend { | |
194 | return Ok(()); | |
195 | } | |
196 | } | |
197 | } | |
198 | } | |
199 | Ok(()) | |
200 | } | |
201 | } | |
202 | ||
203 | impl NADecoder for CinepakDecoder { | |
204 | fn init(&mut self, _supp: &mut NADecoderSupport, info: NACodecInfoRef) -> DecoderResult<()> { | |
205 | if let NACodecTypeInfo::Video(vinfo) = info.get_properties() { | |
206 | let w = vinfo.get_width(); | |
207 | let h = vinfo.get_height(); | |
208 | let myinfo = NACodecTypeInfo::Video(NAVideoInfo::new(w, h, false, YUV420_FORMAT)); | |
209 | self.info = NACodecInfo::new_ref(info.get_name(), myinfo, None).into_ref(); | |
210 | self.frmmgr.clear(); | |
211 | Ok(()) | |
212 | } else { | |
213 | Err(DecoderError::InvalidData) | |
214 | } | |
215 | } | |
216 | fn decode(&mut self, _supp: &mut NADecoderSupport, pkt: &NAPacket) -> DecoderResult<NAFrameRef> { | |
217 | let src = pkt.get_buffer(); | |
218 | if src.len() <= 10 { return Err(DecoderError::ShortData); } | |
219 | ||
220 | let mut mr = MemoryReader::new_read(src.as_slice()); | |
221 | let mut br = ByteReader::new(&mut mr); | |
222 | ||
223 | let flags = br.read_byte()?; | |
224 | let size = br.read_u24be()? as usize; | |
225 | validate!(src.len() >= size); | |
226 | let width = br.read_u16be()? as usize; | |
227 | let height = br.read_u16be()? as usize; | |
228 | let nstrips = br.read_u16be()? as usize; | |
229 | ||
230 | let is_intra = (flags & 1) == 0; | |
231 | ||
232 | if let Some(ref vinfo) = self.info.get_properties().get_video_info() { | |
233 | if vinfo.width != width || vinfo.height != height { | |
234 | let myinfo = NACodecTypeInfo::Video(NAVideoInfo::new(width, height, false, YUV420_FORMAT)); | |
235 | self.info = NACodecInfo::new_ref(self.info.get_name(), myinfo, None).into_ref(); | |
236 | self.frmmgr.clear(); | |
237 | } | |
238 | } | |
239 | let mut buf; | |
240 | if is_intra { | |
241 | let vinfo = self.info.get_properties().get_video_info().unwrap(); | |
242 | let bufinfo = alloc_video_buffer(vinfo, 2)?; | |
243 | buf = bufinfo.get_vbuf().unwrap(); | |
244 | } else { | |
245 | let bufret = self.frmmgr.clone_ref(); | |
246 | if let Some(vbuf) = bufret { | |
247 | buf = vbuf; | |
248 | } else { | |
249 | return Err(DecoderError::MissingReference); | |
250 | } | |
251 | } | |
252 | let mut frm = NASimpleVideoFrame::from_video_buf(&mut buf).unwrap(); | |
253 | ||
254 | let mut last_y = 0; | |
255 | for i in 0..nstrips { | |
256 | let flags = br.read_byte()?; | |
257 | validate!(flags == 0x10 || flags == 0x11); | |
258 | let is_intra_strip = (flags & 1) == 0; | |
259 | let size = br.read_u24be()? as usize; | |
260 | validate!(size > 12 && (size - 4) <= (br.left() as usize)); | |
261 | let yoff = br.read_u16be()? as usize; | |
262 | let xoff = br.read_u16be()? as usize; | |
263 | if xoff != 0 || yoff != 0 { | |
264 | return Err(DecoderError::NotImplemented); | |
265 | } | |
266 | let yend = br.read_u16be()? as usize; | |
267 | let xend = br.read_u16be()? as usize; | |
268 | if i == 0 && is_intra && !is_intra_strip { | |
269 | return Err(DecoderError::InvalidData); | |
270 | } | |
271 | let start = br.tell() as usize; | |
272 | let end = start + size - 12; | |
273 | let strip_data = &src[start..end]; | |
274 | self.decode_strip(strip_data, is_intra, is_intra_strip, 0, last_y, xend, last_y + yend, &mut frm)?; | |
275 | br.read_skip(size - 12)?; | |
276 | last_y += yend; | |
277 | } | |
278 | ||
279 | self.frmmgr.add_frame(buf.clone()); | |
280 | let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), NABufferType::Video(buf)); | |
281 | frm.set_keyframe(is_intra); | |
282 | frm.set_frame_type(if is_intra { FrameType::I } else { FrameType::P }); | |
283 | Ok(frm.into_ref()) | |
284 | } | |
285 | fn flush(&mut self) { | |
286 | self.frmmgr.clear(); | |
287 | } | |
288 | } | |
289 | ||
290 | pub fn get_decoder() -> Box<dyn NADecoder + Send> { | |
291 | Box::new(CinepakDecoder::new()) | |
292 | } | |
293 | ||
294 | #[cfg(test)] | |
295 | mod test { | |
296 | use nihav_core::codecs::RegisteredDecoders; | |
297 | use nihav_core::demuxers::RegisteredDemuxers; | |
298 | use nihav_codec_support::test::dec_video::*; | |
299 | use crate::generic_register_all_codecs; | |
300 | use crate::generic_register_all_demuxers; | |
301 | #[test] | |
302 | fn test_cinepak() { | |
303 | let mut dmx_reg = RegisteredDemuxers::new(); | |
304 | generic_register_all_demuxers(&mut dmx_reg); | |
305 | let mut dec_reg = RegisteredDecoders::new(); | |
306 | generic_register_all_codecs(&mut dec_reg); | |
307 | test_decoding("avi", "cinepak", "assets/Misc/ot171.avi", Some(10), &dmx_reg, | |
308 | &dec_reg, ExpectedTestResult::MD5Frames(vec![ | |
309 | [0xd58326b0, 0xdbfc1dcc, 0x6d66a04c, 0x08a21bbb], | |
310 | [0x9b2cb5c5, 0x69b5f261, 0xcaccaaaf, 0xff2a807d], | |
311 | [0x55c322d5, 0xf76f81ce, 0x923ada8c, 0x4925a5c8], | |
312 | [0x2d1a537a, 0x62233cb6, 0xc1d39c2f, 0xeec9ccf3], | |
313 | [0xf3cc841d, 0x56603c01, 0x34f521cf, 0x61f8a0c9], | |
314 | [0xd75c0802, 0x9e786186, 0xc7a05cdf, 0x52ddc59d], | |
315 | [0xde19733b, 0x29633d17, 0x507e9f82, 0x94c09158], | |
316 | [0x1ea11919, 0x133a282c, 0x8cee485c, 0x150cb3f4], | |
317 | [0x55a6d8fb, 0x2ea287c0, 0x36b3083b, 0x954cfc64], | |
318 | [0xfb8be1fb, 0x84ad10aa, 0xa00ee55c, 0x9e191e5b], | |
319 | [0x9c090a08, 0x43071726, 0x26236b5a, 0x79595848]])); | |
320 | } | |
321 | #[test] | |
322 | fn test_cinepak_gray() { | |
323 | let mut dmx_reg = RegisteredDemuxers::new(); | |
324 | generic_register_all_demuxers(&mut dmx_reg); | |
325 | let mut dec_reg = RegisteredDecoders::new(); | |
326 | generic_register_all_codecs(&mut dec_reg); | |
327 | test_decoding("mov", "cinepak", "assets/Misc/dday.mov", Some(10), &dmx_reg, | |
328 | &dec_reg, ExpectedTestResult::MD5Frames(vec![ | |
329 | [0x75d4d701, 0x897b4a37, 0xdc2bfb95, 0x3c8871a5], | |
330 | [0x75d4d701, 0x897b4a37, 0xdc2bfb95, 0x3c8871a5], | |
331 | [0x75d4d701, 0x897b4a37, 0xdc2bfb95, 0x3c8871a5], | |
332 | [0x75d4d701, 0x897b4a37, 0xdc2bfb95, 0x3c8871a5], | |
333 | [0x75d4d701, 0x897b4a37, 0xdc2bfb95, 0x3c8871a5], | |
334 | [0x75d4d701, 0x897b4a37, 0xdc2bfb95, 0x3c8871a5], | |
335 | [0x75d4d701, 0x897b4a37, 0xdc2bfb95, 0x3c8871a5], | |
336 | [0x75d4d701, 0x897b4a37, 0xdc2bfb95, 0x3c8871a5], | |
337 | [0x75d4d701, 0x897b4a37, 0xdc2bfb95, 0x3c8871a5], | |
338 | [0x75d4d701, 0x897b4a37, 0xdc2bfb95, 0x3c8871a5], | |
339 | [0x4c67ee48, 0xbea36f9c, 0xde61338b, 0xec36cc90]])); | |
340 | } | |
341 | } | |
342 |