Commit | Line | Data |
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be91b1c3 KS |
1 | use io::bitreader::*; |
2 | use io::codebook::*; | |
3 | use formats; | |
4 | use super::super::*; | |
5 | use super::*; | |
2a2aa421 | 6 | use super::code::H263BlockDSP; |
be91b1c3 KS |
7 | use super::decoder::*; |
8 | use super::data::*; | |
9 | ||
10 | #[allow(dead_code)] | |
11 | struct Tables { | |
12 | intra_mcbpc_cb: Codebook<u8>, | |
13 | inter_mcbpc_cb: Codebook<u8>, | |
507f4b11 | 14 | mbtype_b_cb: Codebook<u8>, |
be91b1c3 | 15 | cbpy_cb: Codebook<u8>, |
507f4b11 | 16 | cbpc_b_cb: Codebook<u8>, |
be91b1c3 KS |
17 | rl_cb: Codebook<H263RLSym>, |
18 | aic_rl_cb: Codebook<H263RLSym>, | |
19 | mv_cb: Codebook<u8>, | |
20 | } | |
21 | ||
22 | #[derive(Clone,Copy)] | |
23 | struct RPRInfo { | |
24 | present: bool, | |
25 | bits: u8, | |
26 | widths: [usize; 8], | |
27 | heights: [usize; 8], | |
28 | } | |
29 | ||
30 | struct RealVideo20Decoder { | |
31 | info: Rc<NACodecInfo>, | |
32 | dec: H263BaseDecoder, | |
33 | tables: Tables, | |
34 | w: usize, | |
35 | h: usize, | |
36 | minor_ver: u8, | |
37 | rpr: RPRInfo, | |
2a2aa421 | 38 | bdsp: H263BlockDSP, |
be91b1c3 KS |
39 | } |
40 | ||
41 | struct RealVideo20BR<'a> { | |
42 | br: BitReader<'a>, | |
43 | tables: &'a Tables, | |
44 | num_slices: usize, | |
45 | slice_no: usize, | |
46 | slice_off: Vec<u32>, | |
47 | w: usize, | |
48 | h: usize, | |
49 | mb_w: usize, | |
50 | mb_h: usize, | |
be91b1c3 | 51 | mb_pos_bits: u8, |
be91b1c3 KS |
52 | minor_ver: u8, |
53 | rpr: RPRInfo, | |
be91b1c3 KS |
54 | } |
55 | ||
56 | struct RV20SliceInfo { | |
57 | ftype: Type, | |
58 | qscale: u8, | |
59 | mb_x: usize, | |
60 | mb_y: usize, | |
61 | mb_pos: usize, | |
62 | w: usize, | |
63 | h: usize, | |
64 | } | |
65 | ||
66 | impl RV20SliceInfo { | |
67 | fn new(ftype: Type, qscale: u8, mb_x: usize, mb_y: usize, mb_pos: usize, w: usize, h: usize) -> Self { | |
68 | RV20SliceInfo { ftype: ftype, qscale: qscale, mb_x: mb_x, mb_y: mb_y, mb_pos: mb_pos, w: w, h: h } | |
69 | } | |
70 | } | |
71 | ||
72 | impl<'a> RealVideo20BR<'a> { | |
73 | fn new(src: &'a [u8], tables: &'a Tables, width: usize, height: usize, minor_ver: u8, rpr: RPRInfo) -> Self { | |
74 | let nslices = (src[0] as usize) + 1; | |
75 | let mut slice_offs = Vec::with_capacity(nslices); | |
76 | { | |
77 | let offs = &src[1..][..nslices * 8]; | |
78 | let mut br = BitReader::new(offs, offs.len(), BitReaderMode::BE); | |
79 | for _ in 0..nslices { | |
80 | br.skip(32).unwrap(); | |
81 | let off = br.read(32).unwrap(); | |
82 | slice_offs.push(off); | |
83 | } | |
84 | } | |
85 | let soff = nslices * 8 + 1; | |
86 | let mb_w = (width + 15) >> 4; | |
87 | let mb_h = (height + 15) >> 4; | |
88 | let max_pos = mb_w * mb_h - 1; | |
89 | let mut mbpb = 0; | |
90 | for i in 0..H263_MBB.len() { | |
91 | if max_pos <= H263_MBB[i].blocks { | |
92 | mbpb = H263_MBB[i].bits; | |
93 | break; | |
94 | } | |
95 | } | |
96 | RealVideo20BR { | |
97 | br: BitReader::new(&src[soff..], src.len() - soff, BitReaderMode::BE), | |
98 | tables: tables, | |
99 | num_slices: nslices, | |
100 | slice_no: 0, | |
101 | slice_off: slice_offs, | |
102 | w: width, | |
103 | h: height, | |
104 | mb_w: mb_w, | |
105 | mb_h: mb_h, | |
106 | mb_pos_bits: mbpb, | |
be91b1c3 KS |
107 | minor_ver: minor_ver, |
108 | rpr: rpr, | |
be91b1c3 KS |
109 | } |
110 | } | |
111 | ||
2a2aa421 | 112 | #[allow(unused_variables)] |
0c3b4923 | 113 | fn decode_block(&mut self, sstate: &SliceState, quant: u8, intra: bool, coded: bool, blk: &mut [i16; 64], plane_no: usize, acpred: ACPredMode) -> DecoderResult<()> { |
be91b1c3 KS |
114 | let mut br = &mut self.br; |
115 | let mut idx = 0; | |
2a2aa421 | 116 | if !sstate.is_iframe && intra { |
fc26b944 | 117 | let mut dc = br.read(8)? as i16; |
be91b1c3 KS |
118 | if dc == 255 { dc = 128; } |
119 | blk[0] = dc << 3; | |
120 | idx = 1; | |
121 | } | |
122 | if !coded { return Ok(()); } | |
0c3b4923 KS |
123 | let scan = match acpred { |
124 | ACPredMode::Hor => H263_SCAN_V, | |
125 | ACPredMode::Ver => H263_SCAN_H, | |
126 | _ => H263_ZIGZAG, | |
127 | }; | |
be91b1c3 | 128 | |
2a2aa421 | 129 | let rl_cb = if sstate.is_iframe { &self.tables.aic_rl_cb } else { &self.tables.rl_cb }; |
be91b1c3 KS |
130 | let q_add = if quant == 0 { 0i16 } else { ((quant - 1) | 1) as i16 }; |
131 | let q = (quant * 2) as i16; | |
132 | while idx < 64 { | |
fc26b944 | 133 | let code = br.read_cb(rl_cb)?; |
be91b1c3 KS |
134 | let run; |
135 | let mut level; | |
136 | let last; | |
137 | if !code.is_escape() { | |
138 | run = code.get_run(); | |
139 | level = code.get_level(); | |
140 | last = code.is_last(); | |
fc26b944 | 141 | if br.read_bool()? { level = -level; } |
de919937 KS |
142 | if (idx != 0) || !sstate.is_iframe { |
143 | level = (level * q) + q_add; | |
144 | } else { | |
145 | level = level * (H263_DC_SCALES[quant as usize] as i16); | |
146 | } | |
be91b1c3 | 147 | } else { |
fc26b944 KS |
148 | last = br.read_bool()?; |
149 | run = br.read(6)? as u8; | |
150 | level = br.read_s(8)? as i16; | |
be91b1c3 | 151 | if level == -128 { |
fc26b944 KS |
152 | let low = br.read(5)? as i16; |
153 | let top = br.read_s(6)? as i16; | |
be91b1c3 KS |
154 | level = (top << 5) | low; |
155 | } | |
de919937 KS |
156 | if (idx != 0) || !sstate.is_iframe { |
157 | level = (level * q) + q_add; | |
158 | } else { | |
159 | level = level * (H263_DC_SCALES[quant as usize] as i16); | |
160 | } | |
be91b1c3 KS |
161 | if level < -2048 { level = -2048; } |
162 | if level > 2047 { level = 2047; } | |
163 | } | |
164 | idx += run; | |
165 | validate!(idx < 64); | |
0c3b4923 | 166 | let oidx = scan[idx as usize]; |
be91b1c3 KS |
167 | blk[oidx] = level; |
168 | idx += 1; | |
169 | if last { break; } | |
170 | } | |
171 | Ok(()) | |
172 | } | |
173 | } | |
174 | ||
175 | fn decode_mv_component(br: &mut BitReader, mv_cb: &Codebook<u8>) -> DecoderResult<i16> { | |
fc26b944 | 176 | let code = br.read_cb(mv_cb)? as i16; |
be91b1c3 | 177 | if code == 0 { return Ok(0) } |
fc26b944 | 178 | if !br.read_bool()? { |
be91b1c3 KS |
179 | Ok(code) |
180 | } else { | |
181 | Ok(-code) | |
182 | } | |
183 | } | |
184 | ||
185 | fn decode_mv(br: &mut BitReader, mv_cb: &Codebook<u8>) -> DecoderResult<MV> { | |
fc26b944 KS |
186 | let xval = decode_mv_component(br, mv_cb)?; |
187 | let yval = decode_mv_component(br, mv_cb)?; | |
be91b1c3 KS |
188 | //println!(" MV {},{} @ {}", xval, yval, br.tell()); |
189 | Ok(MV::new(xval, yval)) | |
190 | } | |
191 | ||
192 | impl<'a> BlockDecoder for RealVideo20BR<'a> { | |
193 | ||
194 | #[allow(unused_variables)] | |
195 | fn decode_pichdr(&mut self) -> DecoderResult<PicInfo> { | |
196 | self.slice_no = 0; | |
197 | println!("decoding picture header size {}", if self.num_slices > 1 { self.slice_off[1] } else { ((self.br.tell() as u32) + (self.br.left() as u32))/8 }); | |
fc26b944 | 198 | let shdr = self.read_slice_header()?; |
be91b1c3 | 199 | println!("slice ends @ {}\n", self.br.tell()); |
2a2aa421 | 200 | // self.slice_no += 1; |
be91b1c3 | 201 | validate!((shdr.mb_x == 0) && (shdr.mb_y == 0)); |
2a2aa421 | 202 | /* let mb_count; |
be91b1c3 KS |
203 | if self.slice_no < self.num_slices { |
204 | let pos = self.br.tell(); | |
fc26b944 | 205 | let shdr2 = self.read_slice_header()?; |
be91b1c3 KS |
206 | self.br.seek(pos as u32)?; |
207 | mb_count = shdr2.mb_pos - shdr.mb_pos; | |
208 | } else { | |
209 | mb_count = self.mb_w * self.mb_h; | |
2a2aa421 | 210 | }*/ |
be91b1c3 | 211 | |
0c3b4923 KS |
212 | let plusinfo = Some(PlusInfo::new(shdr.ftype == Type::I, false, false, false)); |
213 | let picinfo = PicInfo::new(shdr.w, shdr.h, shdr.ftype, false, false, shdr.qscale, 0, None, plusinfo); | |
be91b1c3 KS |
214 | Ok(picinfo) |
215 | } | |
216 | ||
217 | #[allow(unused_variables)] | |
2a2aa421 | 218 | fn decode_slice_header(&mut self, info: &PicInfo) -> DecoderResult<SliceInfo> { |
be91b1c3 | 219 | //println!("read slice {} header", self.slice_no); |
fc26b944 | 220 | let shdr = self.read_slice_header()?; |
be91b1c3 KS |
221 | self.slice_no += 1; |
222 | let mb_count; | |
223 | if self.slice_no < self.num_slices { | |
0c3b4923 | 224 | let pos = self.br.tell(); |
fc26b944 | 225 | let shdr2 = self.read_slice_header()?; |
be91b1c3 | 226 | mb_count = shdr2.mb_pos - shdr.mb_pos; |
0c3b4923 | 227 | self.br.seek(pos as u32)?; |
be91b1c3 KS |
228 | } else { |
229 | mb_count = self.mb_w * self.mb_h - shdr.mb_pos; | |
230 | } | |
2a2aa421 | 231 | let ret = SliceInfo::new(shdr.mb_x, shdr.mb_y, shdr.mb_pos + mb_count, shdr.qscale); |
be91b1c3 KS |
232 | |
233 | Ok(ret) | |
234 | } | |
235 | ||
2a2aa421 | 236 | fn decode_block_header(&mut self, info: &PicInfo, slice: &SliceInfo, sstate: &SliceState) -> DecoderResult<BlockInfo> { |
be91b1c3 KS |
237 | let mut br = &mut self.br; |
238 | let mut q = slice.get_quant(); | |
239 | match info.get_mode() { | |
240 | Type::I => { | |
fc26b944 KS |
241 | let mut cbpc = br.read_cb(&self.tables.intra_mcbpc_cb)?; |
242 | while cbpc == 8 { cbpc = br.read_cb(&self.tables.intra_mcbpc_cb)?; } | |
0c3b4923 KS |
243 | let mut acpred = ACPredMode::None; |
244 | if let Some(ref pi) = info.plusinfo { | |
245 | if pi.aic { | |
246 | let acpp = br.read_bool()?; | |
247 | acpred = ACPredMode::DC; | |
248 | println!(" acp {} @ {}", acpp as u8, br.tell()); | |
249 | if acpp { | |
250 | acpred = if br.read_bool()? { ACPredMode::Hor } else { ACPredMode::Ver }; | |
251 | } | |
252 | } | |
253 | println!(" @ {}", br.tell()); | |
254 | } | |
fc26b944 | 255 | let cbpy = br.read_cb(&self.tables.cbpy_cb)?; |
be91b1c3 KS |
256 | let cbp = (cbpy << 2) | (cbpc & 3); |
257 | let dquant = (cbpc & 4) != 0; | |
258 | if dquant { | |
fc26b944 | 259 | let idx = br.read(2)? as usize; |
be91b1c3 KS |
260 | q = ((q as i16) + (H263_DQUANT_TAB[idx] as i16)) as u8; |
261 | } | |
2a2aa421 | 262 | println!(" MB {},{} CBP {:X} @ {}", sstate.mb_x, sstate.mb_y, cbp, br.tell()); |
0c3b4923 KS |
263 | let mut binfo = BlockInfo::new(Type::I, cbp, q); |
264 | binfo.set_acpred(acpred); | |
265 | Ok(binfo) | |
be91b1c3 KS |
266 | }, |
267 | Type::P => { | |
fc26b944 | 268 | if br.read_bool()? { |
be91b1c3 KS |
269 | return Ok(BlockInfo::new(Type::Skip, 0, info.get_quant())); |
270 | } | |
fc26b944 KS |
271 | let mut cbpc = br.read_cb(&self.tables.inter_mcbpc_cb)?; |
272 | while cbpc == 20 { cbpc = br.read_cb(&self.tables.inter_mcbpc_cb)?; } | |
be91b1c3 KS |
273 | let is_intra = (cbpc & 0x04) != 0; |
274 | let dquant = (cbpc & 0x08) != 0; | |
275 | let is_4x4 = (cbpc & 0x10) != 0; | |
276 | if is_intra { | |
fc26b944 | 277 | let cbpy = br.read_cb(&self.tables.cbpy_cb)?; |
be91b1c3 KS |
278 | let cbp = (cbpy << 2) | (cbpc & 3); |
279 | if dquant { | |
fc26b944 | 280 | let idx = br.read(2)? as usize; |
be91b1c3 KS |
281 | q = ((q as i16) + (H263_DQUANT_TAB[idx] as i16)) as u8; |
282 | } | |
283 | let binfo = BlockInfo::new(Type::I, cbp, q); | |
be91b1c3 KS |
284 | return Ok(binfo); |
285 | } | |
286 | ||
fc26b944 | 287 | let mut cbpy = br.read_cb(&self.tables.cbpy_cb)?; |
be91b1c3 KS |
288 | // if /* !aiv && */(cbpc & 3) != 3 { |
289 | cbpy ^= 0xF; | |
290 | // } | |
291 | let cbp = (cbpy << 2) | (cbpc & 3); | |
292 | if dquant { | |
fc26b944 | 293 | let idx = br.read(2)? as usize; |
be91b1c3 KS |
294 | q = ((q as i16) + (H263_DQUANT_TAB[idx] as i16)) as u8; |
295 | } | |
2a2aa421 | 296 | println!(" MB {}.{} cbp = {:X}", sstate.mb_x, sstate.mb_y, cbp); |
be91b1c3 KS |
297 | let mut binfo = BlockInfo::new(Type::P, cbp, q); |
298 | if !is_4x4 { | |
fc26b944 | 299 | let mvec: [MV; 1] = [decode_mv(br, &self.tables.mv_cb)?]; |
be91b1c3 KS |
300 | binfo.set_mv(&mvec); |
301 | } else { | |
302 | let mvec: [MV; 4] = [ | |
fc26b944 KS |
303 | decode_mv(br, &self.tables.mv_cb)?, |
304 | decode_mv(br, &self.tables.mv_cb)?, | |
305 | decode_mv(br, &self.tables.mv_cb)?, | |
306 | decode_mv(br, &self.tables.mv_cb)? | |
be91b1c3 KS |
307 | ]; |
308 | binfo.set_mv(&mvec); | |
309 | } | |
be91b1c3 KS |
310 | Ok(binfo) |
311 | }, | |
507f4b11 KS |
312 | _ => { // B |
313 | let mut mbtype = br.read_cb(&self.tables.mbtype_b_cb)? as usize; | |
314 | while mbtype == 14 { mbtype = br.read_cb(&self.tables.mbtype_b_cb)? as usize; } | |
315 | ||
316 | let is_coded = (H263_MBTYPE_B_CAPS[mbtype] & H263_MBB_CAP_CODED) != 0; | |
317 | let is_intra = (H263_MBTYPE_B_CAPS[mbtype] & H263_MBB_CAP_INTRA) != 0; | |
318 | let dquant = (H263_MBTYPE_B_CAPS[mbtype] & H263_MBB_CAP_DQUANT) != 0; | |
319 | let is_fwd = (H263_MBTYPE_B_CAPS[mbtype] & H263_MBB_CAP_FORWARD) != 0; | |
320 | let is_bwd = (H263_MBTYPE_B_CAPS[mbtype] & H263_MBB_CAP_BACKWARD) != 0; | |
321 | ||
322 | let cbp = if is_coded { | |
323 | let cbpc = br.read_cb(&self.tables.cbpc_b_cb)?; | |
324 | let mut cbpy = br.read_cb(&self.tables.cbpy_cb)?; | |
325 | if !is_intra { cbpy ^= 0xF; } | |
326 | (cbpy << 2) | (cbpc & 3) | |
327 | } else { 0 }; | |
328 | ||
329 | if dquant { | |
330 | let idx = br.read(2)? as usize; | |
331 | q = ((q as i16) + (H263_DQUANT_TAB[idx] as i16)) as u8; | |
332 | } | |
333 | println!(" MB B {}.{} cbp = {:X} @ {} ({} {})", sstate.mb_x, sstate.mb_y, cbp, br.tell(), mbtype, is_intra); | |
334 | ||
335 | if is_intra { | |
336 | let binfo = BlockInfo::new(Type::I, cbp, q); | |
337 | return Ok(binfo); | |
338 | } | |
339 | ||
340 | let mut binfo = BlockInfo::new(Type::B, cbp, q); | |
341 | if is_fwd { | |
342 | let mvec: [MV; 1] = [decode_mv(br, &self.tables.mv_cb)?]; | |
343 | binfo.set_mv(&mvec); | |
344 | } | |
345 | if is_bwd { | |
346 | let mvec: [MV; 1] = [decode_mv(br, &self.tables.mv_cb)?]; | |
347 | binfo.set_b_mv(&mvec); | |
348 | } | |
349 | Ok(binfo) | |
350 | }, | |
be91b1c3 KS |
351 | } |
352 | } | |
353 | ||
2a2aa421 | 354 | fn decode_block_intra(&mut self, info: &BlockInfo, sstate: &SliceState, quant: u8, no: usize, coded: bool, blk: &mut [i16; 64]) -> DecoderResult<()> { |
0c3b4923 | 355 | self.decode_block(sstate, quant, true, coded, blk, if no < 4 { 0 } else { no - 3 }, info.get_acpred()) |
be91b1c3 KS |
356 | } |
357 | ||
358 | #[allow(unused_variables)] | |
2a2aa421 | 359 | fn decode_block_inter(&mut self, info: &BlockInfo, sstate: &SliceState, quant: u8, no: usize, coded: bool, blk: &mut [i16; 64]) -> DecoderResult<()> { |
0c3b4923 | 360 | self.decode_block(sstate, quant, false, coded, blk, if no < 4 { 0 } else { no - 3 }, ACPredMode::None) |
be91b1c3 KS |
361 | } |
362 | ||
2a2aa421 | 363 | fn is_slice_end(&mut self) -> bool { false } |
be91b1c3 KS |
364 | } |
365 | ||
366 | impl<'a> RealVideo20BR<'a> { | |
2a2aa421 | 367 | #[allow(unused_variables)] |
be91b1c3 KS |
368 | fn read_slice_header(&mut self) -> DecoderResult<RV20SliceInfo> { |
369 | validate!(self.slice_no < self.num_slices); | |
370 | ||
371 | let mut br = &mut self.br; | |
fc26b944 | 372 | br.seek(self.slice_off[self.slice_no] * 8)?; |
be91b1c3 KS |
373 | //println!(" slice at off {}", br.tell()); |
374 | ||
fc26b944 | 375 | let frm_type = br.read(2)?; |
be91b1c3 KS |
376 | let ftype = match frm_type { |
377 | 0 | 1 => { Type::I }, | |
378 | 2 => { Type::P }, | |
507f4b11 | 379 | _ => { Type::B }, |
be91b1c3 KS |
380 | }; |
381 | ||
fc26b944 | 382 | let marker = br.read(1)?; |
be91b1c3 | 383 | validate!(marker == 0); |
fc26b944 | 384 | let qscale = br.read(5)? as u8; |
be91b1c3 KS |
385 | validate!(qscale > 0); |
386 | if self.minor_ver >= 2 { | |
fc26b944 | 387 | br.skip(1)?; // loop filter |
be91b1c3 KS |
388 | } |
389 | let seq = if self.minor_ver <= 1 { | |
fc26b944 | 390 | br.read(8)? << 7 |
be91b1c3 | 391 | } else { |
fc26b944 | 392 | br.read(13)? << 2 |
be91b1c3 KS |
393 | }; |
394 | let w; | |
395 | let h; | |
396 | if self.rpr.present { | |
fc26b944 | 397 | let rpr = br.read(self.rpr.bits)? as usize; |
be91b1c3 KS |
398 | if rpr == 0 { |
399 | w = self.w; | |
400 | h = self.h; | |
401 | } else { | |
7c37f176 KS |
402 | w = self.rpr.widths[rpr - 1]; |
403 | h = self.rpr.heights[rpr - 1]; | |
be91b1c3 KS |
404 | validate!((w != 0) && (h != 0)); |
405 | } | |
406 | } else { | |
407 | w = self.w; | |
408 | h = self.h; | |
409 | } | |
410 | ||
fc26b944 | 411 | let mb_pos = br.read(self.mb_pos_bits)? as usize; |
be91b1c3 KS |
412 | let mb_x = mb_pos % self.mb_w; |
413 | let mb_y = mb_pos / self.mb_w; | |
414 | ||
fc26b944 | 415 | br.skip(1)?; // no rounding |
be91b1c3 KS |
416 | |
417 | if (self.minor_ver <= 1) && (frm_type == 3) { | |
fc26b944 | 418 | br.skip(5)?; |
be91b1c3 KS |
419 | } |
420 | println!("slice q {} mb {},{}", qscale, mb_x, mb_y); | |
421 | ||
422 | Ok(RV20SliceInfo::new(ftype, qscale, mb_x, mb_y, mb_pos, w, h)) | |
423 | } | |
424 | } | |
425 | ||
be91b1c3 KS |
426 | impl RealVideo20Decoder { |
427 | fn new() -> Self { | |
428 | let mut coderead = H263ShortCodeReader::new(H263_INTRA_MCBPC); | |
429 | let intra_mcbpc_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
430 | let mut coderead = H263ShortCodeReader::new(H263_INTER_MCBPC); | |
431 | let inter_mcbpc_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
507f4b11 KS |
432 | let mut coderead = H263ShortCodeReader::new(H263_MBTYPE_B); |
433 | let mbtype_b_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
be91b1c3 KS |
434 | let mut coderead = H263ShortCodeReader::new(H263_CBPY); |
435 | let cbpy_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
507f4b11 KS |
436 | let mut coderead = H263ShortCodeReader::new(H263_CBPC_B); |
437 | let cbpc_b_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
be91b1c3 KS |
438 | let mut coderead = H263RLCodeReader::new(H263_RL_CODES); |
439 | let rl_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
440 | let mut coderead = H263RLCodeReader::new(H263_RL_CODES_AIC); | |
441 | let aic_rl_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
442 | let mut coderead = H263ShortCodeReader::new(H263_MV); | |
443 | let mv_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
444 | ||
445 | let tables = Tables { | |
446 | intra_mcbpc_cb: intra_mcbpc_cb, | |
447 | inter_mcbpc_cb: inter_mcbpc_cb, | |
507f4b11 | 448 | mbtype_b_cb: mbtype_b_cb, |
be91b1c3 | 449 | cbpy_cb: cbpy_cb, |
507f4b11 | 450 | cbpc_b_cb: cbpc_b_cb, |
be91b1c3 KS |
451 | rl_cb: rl_cb, |
452 | aic_rl_cb: aic_rl_cb, | |
453 | mv_cb: mv_cb, | |
454 | }; | |
455 | ||
456 | RealVideo20Decoder{ | |
457 | info: Rc::new(DUMMY_CODEC_INFO), | |
42a59352 | 458 | dec: H263BaseDecoder::new(false), |
be91b1c3 KS |
459 | tables: tables, |
460 | w: 0, | |
461 | h: 0, | |
462 | minor_ver: 0, | |
463 | rpr: RPRInfo { present: false, bits: 0, widths: [0; 8], heights: [0; 8] }, | |
2a2aa421 | 464 | bdsp: H263BlockDSP::new(), |
be91b1c3 KS |
465 | } |
466 | } | |
467 | } | |
468 | ||
469 | impl NADecoder for RealVideo20Decoder { | |
2a2aa421 | 470 | #[allow(unused_variables)] |
be91b1c3 KS |
471 | fn init(&mut self, info: Rc<NACodecInfo>) -> DecoderResult<()> { |
472 | if let NACodecTypeInfo::Video(vinfo) = info.get_properties() { | |
473 | let w = vinfo.get_width(); | |
474 | let h = vinfo.get_height(); | |
475 | let fmt = formats::YUV420_FORMAT; | |
476 | let myinfo = NACodecTypeInfo::Video(NAVideoInfo::new(w, h, false, fmt)); | |
477 | self.info = Rc::new(NACodecInfo::new_ref(info.get_name(), myinfo, info.get_extradata())); | |
478 | self.w = w; | |
479 | self.h = h; | |
480 | ||
481 | let edata = info.get_extradata().unwrap(); | |
482 | let src: &[u8] = &edata; | |
483 | let ver = ((src[4] as u32) << 12) | ((src[5] as u32) << 4) | ((src[6] as u32) >> 4); | |
484 | let maj_ver = ver >> 16; | |
485 | let min_ver = (ver >> 8) & 0xFF; | |
486 | let mic_ver = ver & 0xFF; | |
487 | println!("ver {:06X}", ver); | |
488 | validate!(maj_ver == 2); | |
489 | self.minor_ver = min_ver as u8; | |
490 | let rprb = src[1] & 7; | |
491 | if rprb == 0 { | |
492 | self.rpr.present = false; | |
493 | } else { | |
494 | self.rpr.present = true; | |
7c37f176 | 495 | self.rpr.bits = ((rprb >> 1) + 1) as u8; |
be91b1c3 KS |
496 | for i in 4..(src.len()/2) { |
497 | self.rpr.widths [i - 4] = (src[i * 2] as usize) * 4; | |
498 | self.rpr.heights[i - 4] = (src[i * 2 + 1] as usize) * 4; | |
499 | } | |
500 | } | |
501 | Ok(()) | |
502 | } else { | |
be91b1c3 KS |
503 | Err(DecoderError::InvalidData) |
504 | } | |
505 | } | |
506 | fn decode(&mut self, pkt: &NAPacket) -> DecoderResult<NAFrameRef> { | |
507 | let src = pkt.get_buffer(); | |
508 | ||
509 | println!(" decode frame size {}, {} slices", src.len(), src[0]+1); | |
510 | let mut ibr = RealVideo20BR::new(&src, &self.tables, self.w, self.h, self.minor_ver, self.rpr); | |
511 | ||
fc26b944 | 512 | let bufinfo = self.dec.parse_frame(&mut ibr, &self.bdsp)?; |
be91b1c3 KS |
513 | |
514 | let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), bufinfo); | |
515 | frm.set_keyframe(self.dec.is_intra()); | |
507f4b11 | 516 | frm.set_frame_type(self.dec.get_frame_type()); |
be91b1c3 KS |
517 | Ok(Rc::new(RefCell::new(frm))) |
518 | } | |
519 | } | |
520 | ||
521 | struct MBB { blocks: usize, bits: u8 } | |
522 | const H263_MBB: &[MBB; 7] = &[ | |
523 | MBB{ blocks: 47, bits: 6 }, | |
524 | MBB{ blocks: 98, bits: 7 }, | |
525 | MBB{ blocks: 395, bits: 9 }, | |
526 | MBB{ blocks: 1583, bits: 11 }, | |
527 | MBB{ blocks: 6335, bits: 13 }, | |
528 | MBB{ blocks: 9215, bits: 14 }, | |
529 | MBB{ blocks: 65536, bits: 14 }, | |
530 | ]; | |
531 | ||
532 | pub fn get_decoder() -> Box<NADecoder> { | |
533 | Box::new(RealVideo20Decoder::new()) | |
534 | } | |
535 | ||
536 | #[cfg(test)] | |
537 | mod test { | |
538 | use test::dec_video::test_file_decoding; | |
539 | #[test] | |
540 | fn test_rv20() { | |
7c37f176 KS |
541 | test_file_decoding("realmedia", "assets/RV/rv20_svt_atrc_640x352_realproducer_plus_8.51.rm", None, true, false, Some("rv20")); |
542 | // test_file_decoding("realmedia", "assets/RV/rv20_cook_640x352_realproducer_plus_8.51.rm", /*None*/Some(1000), true, false, Some("rv20")); | |
be91b1c3 KS |
543 | } |
544 | } |