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Commit | Line | Data |
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5641dccf KS |
1 | use std::rc::Rc; |
2 | use std::cell::RefCell; | |
3 | use nihav_core::io::bitreader::*; | |
4 | use nihav_core::io::codebook::*; | |
5 | use nihav_core::formats; | |
6 | use nihav_core::frame::*; | |
7 | use nihav_core::codecs::*; | |
8 | use nihav_core::codecs::h263::*; | |
9 | use nihav_core::codecs::h263::code::H263BlockDSP; | |
10 | use nihav_core::codecs::h263::decoder::*; | |
11 | use nihav_core::codecs::h263::data::*; | |
12 | ||
be91b1c3 KS |
13 | |
14 | #[allow(dead_code)] | |
15 | struct Tables { | |
16 | intra_mcbpc_cb: Codebook<u8>, | |
17 | inter_mcbpc_cb: Codebook<u8>, | |
507f4b11 | 18 | mbtype_b_cb: Codebook<u8>, |
be91b1c3 | 19 | cbpy_cb: Codebook<u8>, |
507f4b11 | 20 | cbpc_b_cb: Codebook<u8>, |
be91b1c3 KS |
21 | rl_cb: Codebook<H263RLSym>, |
22 | aic_rl_cb: Codebook<H263RLSym>, | |
23 | mv_cb: Codebook<u8>, | |
24 | } | |
25 | ||
26 | #[derive(Clone,Copy)] | |
27 | struct RPRInfo { | |
28 | present: bool, | |
29 | bits: u8, | |
30 | widths: [usize; 8], | |
31 | heights: [usize; 8], | |
32 | } | |
33 | ||
34 | struct RealVideo20Decoder { | |
35 | info: Rc<NACodecInfo>, | |
36 | dec: H263BaseDecoder, | |
37 | tables: Tables, | |
38 | w: usize, | |
39 | h: usize, | |
40 | minor_ver: u8, | |
41 | rpr: RPRInfo, | |
2a2aa421 | 42 | bdsp: H263BlockDSP, |
be91b1c3 KS |
43 | } |
44 | ||
45 | struct RealVideo20BR<'a> { | |
46 | br: BitReader<'a>, | |
47 | tables: &'a Tables, | |
48 | num_slices: usize, | |
49 | slice_no: usize, | |
50 | slice_off: Vec<u32>, | |
51 | w: usize, | |
52 | h: usize, | |
53 | mb_w: usize, | |
54 | mb_h: usize, | |
be91b1c3 | 55 | mb_pos_bits: u8, |
be91b1c3 KS |
56 | minor_ver: u8, |
57 | rpr: RPRInfo, | |
be91b1c3 KS |
58 | } |
59 | ||
60 | struct RV20SliceInfo { | |
61 | ftype: Type, | |
32007ad9 | 62 | seq: u32, |
be91b1c3 KS |
63 | qscale: u8, |
64 | mb_x: usize, | |
65 | mb_y: usize, | |
66 | mb_pos: usize, | |
67 | w: usize, | |
68 | h: usize, | |
69 | } | |
70 | ||
71 | impl RV20SliceInfo { | |
32007ad9 KS |
72 | fn new(ftype: Type, seq: u32, qscale: u8, mb_x: usize, mb_y: usize, mb_pos: usize, w: usize, h: usize) -> Self { |
73 | RV20SliceInfo { ftype: ftype, seq: seq, qscale: qscale, mb_x: mb_x, mb_y: mb_y, mb_pos: mb_pos, w: w, h: h } | |
be91b1c3 KS |
74 | } |
75 | } | |
76 | ||
77 | impl<'a> RealVideo20BR<'a> { | |
78 | fn new(src: &'a [u8], tables: &'a Tables, width: usize, height: usize, minor_ver: u8, rpr: RPRInfo) -> Self { | |
79 | let nslices = (src[0] as usize) + 1; | |
80 | let mut slice_offs = Vec::with_capacity(nslices); | |
81 | { | |
82 | let offs = &src[1..][..nslices * 8]; | |
83 | let mut br = BitReader::new(offs, offs.len(), BitReaderMode::BE); | |
84 | for _ in 0..nslices { | |
85 | br.skip(32).unwrap(); | |
86 | let off = br.read(32).unwrap(); | |
87 | slice_offs.push(off); | |
88 | } | |
89 | } | |
90 | let soff = nslices * 8 + 1; | |
91 | let mb_w = (width + 15) >> 4; | |
92 | let mb_h = (height + 15) >> 4; | |
93 | let max_pos = mb_w * mb_h - 1; | |
94 | let mut mbpb = 0; | |
95 | for i in 0..H263_MBB.len() { | |
96 | if max_pos <= H263_MBB[i].blocks { | |
97 | mbpb = H263_MBB[i].bits; | |
98 | break; | |
99 | } | |
100 | } | |
101 | RealVideo20BR { | |
102 | br: BitReader::new(&src[soff..], src.len() - soff, BitReaderMode::BE), | |
103 | tables: tables, | |
104 | num_slices: nslices, | |
105 | slice_no: 0, | |
106 | slice_off: slice_offs, | |
107 | w: width, | |
108 | h: height, | |
109 | mb_w: mb_w, | |
110 | mb_h: mb_h, | |
111 | mb_pos_bits: mbpb, | |
be91b1c3 KS |
112 | minor_ver: minor_ver, |
113 | rpr: rpr, | |
be91b1c3 KS |
114 | } |
115 | } | |
116 | ||
2a2aa421 | 117 | #[allow(unused_variables)] |
0c3b4923 | 118 | fn decode_block(&mut self, sstate: &SliceState, quant: u8, intra: bool, coded: bool, blk: &mut [i16; 64], plane_no: usize, acpred: ACPredMode) -> DecoderResult<()> { |
9037cf6b | 119 | let br = &mut self.br; |
be91b1c3 | 120 | let mut idx = 0; |
2a2aa421 | 121 | if !sstate.is_iframe && intra { |
fc26b944 | 122 | let mut dc = br.read(8)? as i16; |
be91b1c3 KS |
123 | if dc == 255 { dc = 128; } |
124 | blk[0] = dc << 3; | |
125 | idx = 1; | |
126 | } | |
127 | if !coded { return Ok(()); } | |
0c3b4923 KS |
128 | let scan = match acpred { |
129 | ACPredMode::Hor => H263_SCAN_V, | |
130 | ACPredMode::Ver => H263_SCAN_H, | |
131 | _ => H263_ZIGZAG, | |
132 | }; | |
be91b1c3 | 133 | |
2a2aa421 | 134 | let rl_cb = if sstate.is_iframe { &self.tables.aic_rl_cb } else { &self.tables.rl_cb }; |
e3ace094 | 135 | let q_add = if quant == 0 || sstate.is_iframe { 0i16 } else { ((quant - 1) | 1) as i16 }; |
43c8b55e | 136 | let q = if plane_no == 0 { (quant * 2) as i16 } else { H263_CHROMA_QUANT[quant as usize] as i16 }; |
be91b1c3 | 137 | while idx < 64 { |
fc26b944 | 138 | let code = br.read_cb(rl_cb)?; |
be91b1c3 KS |
139 | let run; |
140 | let mut level; | |
141 | let last; | |
142 | if !code.is_escape() { | |
143 | run = code.get_run(); | |
144 | level = code.get_level(); | |
145 | last = code.is_last(); | |
fc26b944 | 146 | if br.read_bool()? { level = -level; } |
32007ad9 | 147 | level = (level * q) + q_add; |
be91b1c3 | 148 | } else { |
fc26b944 KS |
149 | last = br.read_bool()?; |
150 | run = br.read(6)? as u8; | |
151 | level = br.read_s(8)? as i16; | |
be91b1c3 | 152 | if level == -128 { |
fc26b944 KS |
153 | let low = br.read(5)? as i16; |
154 | let top = br.read_s(6)? as i16; | |
be91b1c3 KS |
155 | level = (top << 5) | low; |
156 | } | |
32007ad9 | 157 | level = (level * q) + q_add; |
be91b1c3 KS |
158 | if level < -2048 { level = -2048; } |
159 | if level > 2047 { level = 2047; } | |
160 | } | |
161 | idx += run; | |
162 | validate!(idx < 64); | |
0c3b4923 | 163 | let oidx = scan[idx as usize]; |
be91b1c3 KS |
164 | blk[oidx] = level; |
165 | idx += 1; | |
166 | if last { break; } | |
167 | } | |
168 | Ok(()) | |
169 | } | |
170 | } | |
171 | ||
172 | fn decode_mv_component(br: &mut BitReader, mv_cb: &Codebook<u8>) -> DecoderResult<i16> { | |
fc26b944 | 173 | let code = br.read_cb(mv_cb)? as i16; |
be91b1c3 | 174 | if code == 0 { return Ok(0) } |
fc26b944 | 175 | if !br.read_bool()? { |
be91b1c3 KS |
176 | Ok(code) |
177 | } else { | |
178 | Ok(-code) | |
179 | } | |
180 | } | |
181 | ||
182 | fn decode_mv(br: &mut BitReader, mv_cb: &Codebook<u8>) -> DecoderResult<MV> { | |
fc26b944 KS |
183 | let xval = decode_mv_component(br, mv_cb)?; |
184 | let yval = decode_mv_component(br, mv_cb)?; | |
be91b1c3 KS |
185 | Ok(MV::new(xval, yval)) |
186 | } | |
187 | ||
43c8b55e KS |
188 | fn read_dquant(br: &mut BitReader, q: u8) -> DecoderResult<u8> { |
189 | if br.read_bool()? { | |
190 | Ok(H263_MODIFIED_QUANT[br.read(1)? as usize][q as usize]) | |
191 | } else { | |
192 | Ok(br.read(5)? as u8) | |
193 | } | |
194 | } | |
195 | ||
be91b1c3 KS |
196 | impl<'a> BlockDecoder for RealVideo20BR<'a> { |
197 | ||
198 | #[allow(unused_variables)] | |
199 | fn decode_pichdr(&mut self) -> DecoderResult<PicInfo> { | |
200 | self.slice_no = 0; | |
fc26b944 | 201 | let shdr = self.read_slice_header()?; |
2a2aa421 | 202 | // self.slice_no += 1; |
be91b1c3 | 203 | validate!((shdr.mb_x == 0) && (shdr.mb_y == 0)); |
2a2aa421 | 204 | /* let mb_count; |
be91b1c3 KS |
205 | if self.slice_no < self.num_slices { |
206 | let pos = self.br.tell(); | |
fc26b944 | 207 | let shdr2 = self.read_slice_header()?; |
be91b1c3 KS |
208 | self.br.seek(pos as u32)?; |
209 | mb_count = shdr2.mb_pos - shdr.mb_pos; | |
210 | } else { | |
211 | mb_count = self.mb_w * self.mb_h; | |
2a2aa421 | 212 | }*/ |
be91b1c3 | 213 | |
0c3b4923 | 214 | let plusinfo = Some(PlusInfo::new(shdr.ftype == Type::I, false, false, false)); |
32007ad9 | 215 | let picinfo = PicInfo::new(shdr.w, shdr.h, shdr.ftype, MVMode::Long, false, false, shdr.qscale, shdr.seq as u16, None, plusinfo); |
be91b1c3 KS |
216 | Ok(picinfo) |
217 | } | |
218 | ||
219 | #[allow(unused_variables)] | |
2a2aa421 | 220 | fn decode_slice_header(&mut self, info: &PicInfo) -> DecoderResult<SliceInfo> { |
fc26b944 | 221 | let shdr = self.read_slice_header()?; |
be91b1c3 KS |
222 | self.slice_no += 1; |
223 | let mb_count; | |
224 | if self.slice_no < self.num_slices { | |
0c3b4923 | 225 | let pos = self.br.tell(); |
fc26b944 | 226 | let shdr2 = self.read_slice_header()?; |
be91b1c3 | 227 | mb_count = shdr2.mb_pos - shdr.mb_pos; |
0c3b4923 | 228 | self.br.seek(pos as u32)?; |
be91b1c3 KS |
229 | } else { |
230 | mb_count = self.mb_w * self.mb_h - shdr.mb_pos; | |
231 | } | |
2a2aa421 | 232 | let ret = SliceInfo::new(shdr.mb_x, shdr.mb_y, shdr.mb_pos + mb_count, shdr.qscale); |
be91b1c3 KS |
233 | |
234 | Ok(ret) | |
235 | } | |
236 | ||
43c8b55e | 237 | fn decode_block_header(&mut self, info: &PicInfo, _slice: &SliceInfo, sstate: &SliceState) -> DecoderResult<BlockInfo> { |
9037cf6b | 238 | let br = &mut self.br; |
43c8b55e | 239 | let mut q = sstate.quant; |
be91b1c3 KS |
240 | match info.get_mode() { |
241 | Type::I => { | |
fc26b944 KS |
242 | let mut cbpc = br.read_cb(&self.tables.intra_mcbpc_cb)?; |
243 | while cbpc == 8 { cbpc = br.read_cb(&self.tables.intra_mcbpc_cb)?; } | |
0c3b4923 KS |
244 | let mut acpred = ACPredMode::None; |
245 | if let Some(ref pi) = info.plusinfo { | |
246 | if pi.aic { | |
247 | let acpp = br.read_bool()?; | |
248 | acpred = ACPredMode::DC; | |
0c3b4923 KS |
249 | if acpp { |
250 | acpred = if br.read_bool()? { ACPredMode::Hor } else { ACPredMode::Ver }; | |
251 | } | |
252 | } | |
0c3b4923 | 253 | } |
fc26b944 | 254 | let cbpy = br.read_cb(&self.tables.cbpy_cb)?; |
be91b1c3 KS |
255 | let cbp = (cbpy << 2) | (cbpc & 3); |
256 | let dquant = (cbpc & 4) != 0; | |
257 | if dquant { | |
43c8b55e | 258 | q = read_dquant(br, q)?; |
be91b1c3 | 259 | } |
0c3b4923 KS |
260 | let mut binfo = BlockInfo::new(Type::I, cbp, q); |
261 | binfo.set_acpred(acpred); | |
262 | Ok(binfo) | |
be91b1c3 KS |
263 | }, |
264 | Type::P => { | |
fc26b944 | 265 | if br.read_bool()? { |
be91b1c3 KS |
266 | return Ok(BlockInfo::new(Type::Skip, 0, info.get_quant())); |
267 | } | |
fc26b944 KS |
268 | let mut cbpc = br.read_cb(&self.tables.inter_mcbpc_cb)?; |
269 | while cbpc == 20 { cbpc = br.read_cb(&self.tables.inter_mcbpc_cb)?; } | |
be91b1c3 KS |
270 | let is_intra = (cbpc & 0x04) != 0; |
271 | let dquant = (cbpc & 0x08) != 0; | |
272 | let is_4x4 = (cbpc & 0x10) != 0; | |
273 | if is_intra { | |
fc26b944 | 274 | let cbpy = br.read_cb(&self.tables.cbpy_cb)?; |
be91b1c3 KS |
275 | let cbp = (cbpy << 2) | (cbpc & 3); |
276 | if dquant { | |
43c8b55e | 277 | q = read_dquant(br, q)?; |
be91b1c3 KS |
278 | } |
279 | let binfo = BlockInfo::new(Type::I, cbp, q); | |
be91b1c3 KS |
280 | return Ok(binfo); |
281 | } | |
282 | ||
fc26b944 | 283 | let mut cbpy = br.read_cb(&self.tables.cbpy_cb)?; |
be91b1c3 KS |
284 | // if /* !aiv && */(cbpc & 3) != 3 { |
285 | cbpy ^= 0xF; | |
286 | // } | |
287 | let cbp = (cbpy << 2) | (cbpc & 3); | |
288 | if dquant { | |
43c8b55e | 289 | q = read_dquant(br, q)?; |
be91b1c3 | 290 | } |
be91b1c3 KS |
291 | let mut binfo = BlockInfo::new(Type::P, cbp, q); |
292 | if !is_4x4 { | |
fc26b944 | 293 | let mvec: [MV; 1] = [decode_mv(br, &self.tables.mv_cb)?]; |
be91b1c3 KS |
294 | binfo.set_mv(&mvec); |
295 | } else { | |
296 | let mvec: [MV; 4] = [ | |
fc26b944 KS |
297 | decode_mv(br, &self.tables.mv_cb)?, |
298 | decode_mv(br, &self.tables.mv_cb)?, | |
299 | decode_mv(br, &self.tables.mv_cb)?, | |
300 | decode_mv(br, &self.tables.mv_cb)? | |
be91b1c3 KS |
301 | ]; |
302 | binfo.set_mv(&mvec); | |
303 | } | |
be91b1c3 KS |
304 | Ok(binfo) |
305 | }, | |
32007ad9 | 306 | Type::B => { // B |
507f4b11 KS |
307 | let mut mbtype = br.read_cb(&self.tables.mbtype_b_cb)? as usize; |
308 | while mbtype == 14 { mbtype = br.read_cb(&self.tables.mbtype_b_cb)? as usize; } | |
309 | ||
310 | let is_coded = (H263_MBTYPE_B_CAPS[mbtype] & H263_MBB_CAP_CODED) != 0; | |
311 | let is_intra = (H263_MBTYPE_B_CAPS[mbtype] & H263_MBB_CAP_INTRA) != 0; | |
312 | let dquant = (H263_MBTYPE_B_CAPS[mbtype] & H263_MBB_CAP_DQUANT) != 0; | |
313 | let is_fwd = (H263_MBTYPE_B_CAPS[mbtype] & H263_MBB_CAP_FORWARD) != 0; | |
314 | let is_bwd = (H263_MBTYPE_B_CAPS[mbtype] & H263_MBB_CAP_BACKWARD) != 0; | |
315 | ||
316 | let cbp = if is_coded { | |
317 | let cbpc = br.read_cb(&self.tables.cbpc_b_cb)?; | |
318 | let mut cbpy = br.read_cb(&self.tables.cbpy_cb)?; | |
319 | if !is_intra { cbpy ^= 0xF; } | |
320 | (cbpy << 2) | (cbpc & 3) | |
321 | } else { 0 }; | |
1a151e53 | 322 | |
507f4b11 | 323 | if dquant { |
43c8b55e | 324 | q = read_dquant(br, q)?; |
507f4b11 | 325 | } |
507f4b11 KS |
326 | |
327 | if is_intra { | |
328 | let binfo = BlockInfo::new(Type::I, cbp, q); | |
329 | return Ok(binfo); | |
330 | } | |
331 | ||
332 | let mut binfo = BlockInfo::new(Type::B, cbp, q); | |
333 | if is_fwd { | |
334 | let mvec: [MV; 1] = [decode_mv(br, &self.tables.mv_cb)?]; | |
335 | binfo.set_mv(&mvec); | |
336 | } | |
337 | if is_bwd { | |
338 | let mvec: [MV; 1] = [decode_mv(br, &self.tables.mv_cb)?]; | |
339 | binfo.set_b_mv(&mvec); | |
340 | } | |
341 | Ok(binfo) | |
342 | }, | |
32007ad9 | 343 | _ => { unreachable!(); }, |
be91b1c3 KS |
344 | } |
345 | } | |
346 | ||
2a2aa421 | 347 | fn decode_block_intra(&mut self, info: &BlockInfo, sstate: &SliceState, quant: u8, no: usize, coded: bool, blk: &mut [i16; 64]) -> DecoderResult<()> { |
0c3b4923 | 348 | self.decode_block(sstate, quant, true, coded, blk, if no < 4 { 0 } else { no - 3 }, info.get_acpred()) |
be91b1c3 KS |
349 | } |
350 | ||
351 | #[allow(unused_variables)] | |
2a2aa421 | 352 | fn decode_block_inter(&mut self, info: &BlockInfo, sstate: &SliceState, quant: u8, no: usize, coded: bool, blk: &mut [i16; 64]) -> DecoderResult<()> { |
0c3b4923 | 353 | self.decode_block(sstate, quant, false, coded, blk, if no < 4 { 0 } else { no - 3 }, ACPredMode::None) |
be91b1c3 KS |
354 | } |
355 | ||
2a2aa421 | 356 | fn is_slice_end(&mut self) -> bool { false } |
be91b1c3 KS |
357 | } |
358 | ||
359 | impl<'a> RealVideo20BR<'a> { | |
2a2aa421 | 360 | #[allow(unused_variables)] |
be91b1c3 KS |
361 | fn read_slice_header(&mut self) -> DecoderResult<RV20SliceInfo> { |
362 | validate!(self.slice_no < self.num_slices); | |
363 | ||
9037cf6b | 364 | let br = &mut self.br; |
fc26b944 | 365 | br.seek(self.slice_off[self.slice_no] * 8)?; |
be91b1c3 | 366 | |
fc26b944 | 367 | let frm_type = br.read(2)?; |
be91b1c3 KS |
368 | let ftype = match frm_type { |
369 | 0 | 1 => { Type::I }, | |
370 | 2 => { Type::P }, | |
507f4b11 | 371 | _ => { Type::B }, |
be91b1c3 KS |
372 | }; |
373 | ||
fc26b944 | 374 | let marker = br.read(1)?; |
be91b1c3 | 375 | validate!(marker == 0); |
fc26b944 | 376 | let qscale = br.read(5)? as u8; |
be91b1c3 KS |
377 | validate!(qscale > 0); |
378 | if self.minor_ver >= 2 { | |
fc26b944 | 379 | br.skip(1)?; // loop filter |
be91b1c3 KS |
380 | } |
381 | let seq = if self.minor_ver <= 1 { | |
32007ad9 | 382 | br.read(8)? << 8 |
be91b1c3 | 383 | } else { |
32007ad9 | 384 | br.read(13)? << 3 |
be91b1c3 KS |
385 | }; |
386 | let w; | |
387 | let h; | |
388 | if self.rpr.present { | |
fc26b944 | 389 | let rpr = br.read(self.rpr.bits)? as usize; |
be91b1c3 KS |
390 | if rpr == 0 { |
391 | w = self.w; | |
392 | h = self.h; | |
393 | } else { | |
7c37f176 KS |
394 | w = self.rpr.widths[rpr - 1]; |
395 | h = self.rpr.heights[rpr - 1]; | |
be91b1c3 KS |
396 | validate!((w != 0) && (h != 0)); |
397 | } | |
398 | } else { | |
399 | w = self.w; | |
400 | h = self.h; | |
401 | } | |
402 | ||
fc26b944 | 403 | let mb_pos = br.read(self.mb_pos_bits)? as usize; |
be91b1c3 KS |
404 | let mb_x = mb_pos % self.mb_w; |
405 | let mb_y = mb_pos / self.mb_w; | |
406 | ||
fc26b944 | 407 | br.skip(1)?; // no rounding |
be91b1c3 KS |
408 | |
409 | if (self.minor_ver <= 1) && (frm_type == 3) { | |
fc26b944 | 410 | br.skip(5)?; |
be91b1c3 | 411 | } |
be91b1c3 | 412 | |
32007ad9 | 413 | Ok(RV20SliceInfo::new(ftype, seq, qscale, mb_x, mb_y, mb_pos, w, h)) |
be91b1c3 KS |
414 | } |
415 | } | |
416 | ||
be91b1c3 KS |
417 | impl RealVideo20Decoder { |
418 | fn new() -> Self { | |
419 | let mut coderead = H263ShortCodeReader::new(H263_INTRA_MCBPC); | |
420 | let intra_mcbpc_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
421 | let mut coderead = H263ShortCodeReader::new(H263_INTER_MCBPC); | |
422 | let inter_mcbpc_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
507f4b11 KS |
423 | let mut coderead = H263ShortCodeReader::new(H263_MBTYPE_B); |
424 | let mbtype_b_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
be91b1c3 KS |
425 | let mut coderead = H263ShortCodeReader::new(H263_CBPY); |
426 | let cbpy_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
507f4b11 KS |
427 | let mut coderead = H263ShortCodeReader::new(H263_CBPC_B); |
428 | let cbpc_b_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
be91b1c3 KS |
429 | let mut coderead = H263RLCodeReader::new(H263_RL_CODES); |
430 | let rl_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
431 | let mut coderead = H263RLCodeReader::new(H263_RL_CODES_AIC); | |
432 | let aic_rl_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
433 | let mut coderead = H263ShortCodeReader::new(H263_MV); | |
434 | let mv_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
1a151e53 | 435 | |
be91b1c3 KS |
436 | let tables = Tables { |
437 | intra_mcbpc_cb: intra_mcbpc_cb, | |
438 | inter_mcbpc_cb: inter_mcbpc_cb, | |
507f4b11 | 439 | mbtype_b_cb: mbtype_b_cb, |
be91b1c3 | 440 | cbpy_cb: cbpy_cb, |
507f4b11 | 441 | cbpc_b_cb: cbpc_b_cb, |
be91b1c3 KS |
442 | rl_cb: rl_cb, |
443 | aic_rl_cb: aic_rl_cb, | |
444 | mv_cb: mv_cb, | |
445 | }; | |
446 | ||
447 | RealVideo20Decoder{ | |
448 | info: Rc::new(DUMMY_CODEC_INFO), | |
32007ad9 | 449 | dec: H263BaseDecoder::new_b_frames(false), |
be91b1c3 KS |
450 | tables: tables, |
451 | w: 0, | |
452 | h: 0, | |
453 | minor_ver: 0, | |
454 | rpr: RPRInfo { present: false, bits: 0, widths: [0; 8], heights: [0; 8] }, | |
2a2aa421 | 455 | bdsp: H263BlockDSP::new(), |
be91b1c3 KS |
456 | } |
457 | } | |
458 | } | |
459 | ||
460 | impl NADecoder for RealVideo20Decoder { | |
2a2aa421 | 461 | #[allow(unused_variables)] |
be91b1c3 KS |
462 | fn init(&mut self, info: Rc<NACodecInfo>) -> DecoderResult<()> { |
463 | if let NACodecTypeInfo::Video(vinfo) = info.get_properties() { | |
464 | let w = vinfo.get_width(); | |
465 | let h = vinfo.get_height(); | |
466 | let fmt = formats::YUV420_FORMAT; | |
467 | let myinfo = NACodecTypeInfo::Video(NAVideoInfo::new(w, h, false, fmt)); | |
468 | self.info = Rc::new(NACodecInfo::new_ref(info.get_name(), myinfo, info.get_extradata())); | |
469 | self.w = w; | |
470 | self.h = h; | |
471 | ||
472 | let edata = info.get_extradata().unwrap(); | |
473 | let src: &[u8] = &edata; | |
474 | let ver = ((src[4] as u32) << 12) | ((src[5] as u32) << 4) | ((src[6] as u32) >> 4); | |
475 | let maj_ver = ver >> 16; | |
476 | let min_ver = (ver >> 8) & 0xFF; | |
477 | let mic_ver = ver & 0xFF; | |
be91b1c3 KS |
478 | validate!(maj_ver == 2); |
479 | self.minor_ver = min_ver as u8; | |
480 | let rprb = src[1] & 7; | |
481 | if rprb == 0 { | |
482 | self.rpr.present = false; | |
483 | } else { | |
484 | self.rpr.present = true; | |
7c37f176 | 485 | self.rpr.bits = ((rprb >> 1) + 1) as u8; |
be91b1c3 KS |
486 | for i in 4..(src.len()/2) { |
487 | self.rpr.widths [i - 4] = (src[i * 2] as usize) * 4; | |
488 | self.rpr.heights[i - 4] = (src[i * 2 + 1] as usize) * 4; | |
489 | } | |
490 | } | |
491 | Ok(()) | |
492 | } else { | |
be91b1c3 KS |
493 | Err(DecoderError::InvalidData) |
494 | } | |
495 | } | |
496 | fn decode(&mut self, pkt: &NAPacket) -> DecoderResult<NAFrameRef> { | |
497 | let src = pkt.get_buffer(); | |
498 | ||
be91b1c3 KS |
499 | let mut ibr = RealVideo20BR::new(&src, &self.tables, self.w, self.h, self.minor_ver, self.rpr); |
500 | ||
fc26b944 | 501 | let bufinfo = self.dec.parse_frame(&mut ibr, &self.bdsp)?; |
be91b1c3 KS |
502 | |
503 | let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), bufinfo); | |
504 | frm.set_keyframe(self.dec.is_intra()); | |
507f4b11 | 505 | frm.set_frame_type(self.dec.get_frame_type()); |
be91b1c3 KS |
506 | Ok(Rc::new(RefCell::new(frm))) |
507 | } | |
508 | } | |
509 | ||
510 | struct MBB { blocks: usize, bits: u8 } | |
511 | const H263_MBB: &[MBB; 7] = &[ | |
512 | MBB{ blocks: 47, bits: 6 }, | |
513 | MBB{ blocks: 98, bits: 7 }, | |
514 | MBB{ blocks: 395, bits: 9 }, | |
515 | MBB{ blocks: 1583, bits: 11 }, | |
516 | MBB{ blocks: 6335, bits: 13 }, | |
517 | MBB{ blocks: 9215, bits: 14 }, | |
518 | MBB{ blocks: 65536, bits: 14 }, | |
519 | ]; | |
520 | ||
521 | pub fn get_decoder() -> Box<NADecoder> { | |
522 | Box::new(RealVideo20Decoder::new()) | |
523 | } | |
524 | ||
525 | #[cfg(test)] | |
526 | mod test { | |
3167c45c KS |
527 | use nihav_core::codecs::RegisteredDecoders; |
528 | use nihav_core::demuxers::RegisteredDemuxers; | |
529 | use nihav_core::test::dec_video::*; | |
530 | use crate::codecs::realmedia_register_all_codecs; | |
531 | use crate::demuxers::realmedia_register_all_demuxers; | |
be91b1c3 KS |
532 | #[test] |
533 | fn test_rv20() { | |
3167c45c KS |
534 | let mut dmx_reg = RegisteredDemuxers::new(); |
535 | realmedia_register_all_demuxers(&mut dmx_reg); | |
536 | let mut dec_reg = RegisteredDecoders::new(); | |
537 | realmedia_register_all_codecs(&mut dec_reg); | |
538 | ||
539 | test_file_decoding("realmedia", "assets/RV/rv20_svt_atrc_640x352_realproducer_plus_8.51.rm", /*None*/Some(3000), true, false, None/*Some("rv20")*/, &dmx_reg, &dec_reg); | |
7c37f176 | 540 | // test_file_decoding("realmedia", "assets/RV/rv20_cook_640x352_realproducer_plus_8.51.rm", /*None*/Some(1000), true, false, Some("rv20")); |
be91b1c3 KS |
541 | } |
542 | } |