41 |
* * |
* * |
42 |
* Revision history: * |
* Revision history: * |
43 |
* * |
* * |
44 |
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* 28.10.2002 GMC support - gruel * |
45 |
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* 04.10.2002 qpel support - Isibaar * |
46 |
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* 11.07.2002 add VOP width & height return to dec when dec->width * |
47 |
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* or dec->height is 0 (for use in examples/ex1.c) * |
48 |
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* MinChen <chenm001@163.com> * |
49 |
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* 22.05.2002 bs_put_matrix fix * |
50 |
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* 20.05.2002 added BitstreamWriteUserData * |
51 |
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* 19.06.2002 Fix a little bug in use custom quant matrix * |
52 |
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* MinChen <chenm001@163.com> * |
53 |
* 08.05.2002 add low_delay support for B_VOP decode * |
* 08.05.2002 add low_delay support for B_VOP decode * |
54 |
* MinChen <chenm001@163.com> * |
* MinChen <chenm001@163.com> * |
55 |
* 06.05.2002 low_delay * |
* 06.05.2002 low_delay * |
66 |
******************************************************************************/ |
******************************************************************************/ |
67 |
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68 |
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69 |
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#include <string.h> |
70 |
#include "bitstream.h" |
#include "bitstream.h" |
71 |
#include "zigzag.h" |
#include "zigzag.h" |
72 |
#include "../quant/quant_matrix.h" |
#include "../quant/quant_matrix.h" |
73 |
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#include "mbcoding.h" |
74 |
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75 |
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|
76 |
static uint32_t __inline |
static uint32_t __inline |
87 |
return n; |
return n; |
88 |
#else |
#else |
89 |
__asm { |
__asm { |
90 |
bsr eax, value inc eax} |
bsr eax, value |
91 |
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inc eax |
92 |
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} |
93 |
#endif |
#endif |
94 |
} |
} |
95 |
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|
119 |
matrix[scan_tables[0][i++]] = value; |
matrix[scan_tables[0][i++]] = value; |
120 |
} |
} |
121 |
while (value != 0 && i < 64); |
while (value != 0 && i < 64); |
122 |
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i--; // fix little bug at coeff not full |
123 |
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|
124 |
while (i < 64) { |
while (i < 64) { |
125 |
matrix[scan_tables[0][i++]] = last; |
matrix[scan_tables[0][i++]] = last; |
126 |
} |
} |
127 |
} |
} |
128 |
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129 |
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130 |
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131 |
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// for PVOP addbits == fcode - 1 |
132 |
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// for BVOP addbits == max(fcode,bcode) - 1 |
133 |
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// returns mbpos |
134 |
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int |
135 |
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read_video_packet_header(Bitstream *bs, |
136 |
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DECODER * dec, |
137 |
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const int addbits, |
138 |
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int * quant, |
139 |
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int * fcode_forward, |
140 |
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int * fcode_backward, |
141 |
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int * intra_dc_threshold) |
142 |
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{ |
143 |
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int startcode_bits = NUMBITS_VP_RESYNC_MARKER + addbits; |
144 |
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int mbnum_bits = log2bin(dec->mb_width * dec->mb_height - 1); |
145 |
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int mbnum; |
146 |
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int hec = 0; |
147 |
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148 |
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BitstreamSkip(bs, BitstreamNumBitsToByteAlign(bs)); |
149 |
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BitstreamSkip(bs, startcode_bits); |
150 |
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151 |
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DPRINTF(DPRINTF_STARTCODE, "<video_packet_header>"); |
152 |
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153 |
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if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
154 |
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{ |
155 |
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hec = BitstreamGetBit(bs); /* header_extension_code */ |
156 |
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if (hec && !(dec->sprite_enable == SPRITE_STATIC /* && current_coding_type = I_VOP */)) |
157 |
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{ |
158 |
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BitstreamSkip(bs, 13); /* vop_width */ |
159 |
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READ_MARKER(); |
160 |
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BitstreamSkip(bs, 13); /* vop_height */ |
161 |
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READ_MARKER(); |
162 |
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BitstreamSkip(bs, 13); /* vop_horizontal_mc_spatial_ref */ |
163 |
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READ_MARKER(); |
164 |
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BitstreamSkip(bs, 13); /* vop_vertical_mc_spatial_ref */ |
165 |
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READ_MARKER(); |
166 |
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} |
167 |
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} |
168 |
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169 |
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mbnum = BitstreamGetBits(bs, mbnum_bits); /* macroblock_number */ |
170 |
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DPRINTF(DPRINTF_HEADER, "mbnum %i", mbnum); |
171 |
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|
172 |
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if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) |
173 |
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{ |
174 |
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*quant = BitstreamGetBits(bs, 5); /* quant_scale */ |
175 |
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DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
176 |
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} |
177 |
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178 |
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if (dec->shape == VIDOBJLAY_SHAPE_RECTANGULAR) |
179 |
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hec = BitstreamGetBit(bs); /* header_extension_code */ |
180 |
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181 |
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182 |
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DPRINTF(DPRINTF_HEADER, "header_extension_code %i", hec); |
183 |
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if (hec) |
184 |
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{ |
185 |
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int time_base; |
186 |
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int time_increment; |
187 |
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int coding_type; |
188 |
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189 |
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for (time_base=0; BitstreamGetBit(bs)!=0; time_base++); /* modulo_time_base */ |
190 |
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READ_MARKER(); |
191 |
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if (dec->time_inc_bits) |
192 |
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time_increment = (BitstreamGetBits(bs, dec->time_inc_bits)); /* vop_time_increment */ |
193 |
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READ_MARKER(); |
194 |
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DPRINTF(DPRINTF_HEADER,"time %i:%i", time_base, time_increment); |
195 |
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|
196 |
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coding_type = BitstreamGetBits(bs, 2); |
197 |
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DPRINTF(DPRINTF_HEADER,"coding_type %i", coding_type); |
198 |
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|
199 |
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if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
200 |
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{ |
201 |
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BitstreamSkip(bs, 1); /* change_conv_ratio_disable */ |
202 |
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if (coding_type != I_VOP) |
203 |
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BitstreamSkip(bs, 1); /* vop_shape_coding_type */ |
204 |
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} |
205 |
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206 |
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if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) |
207 |
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{ |
208 |
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*intra_dc_threshold = intra_dc_threshold_table[BitstreamGetBits(bs, 3)]; |
209 |
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210 |
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if (dec->sprite_enable == SPRITE_GMC && coding_type == S_VOP && |
211 |
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dec->sprite_warping_points > 0) |
212 |
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{ |
213 |
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// TODO: sprite trajectory |
214 |
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} |
215 |
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if (dec->reduced_resolution_enable && |
216 |
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dec->shape == VIDOBJLAY_SHAPE_RECTANGULAR && |
217 |
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(coding_type == P_VOP || coding_type == I_VOP)) |
218 |
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{ |
219 |
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BitstreamSkip(bs, 1); /* vop_reduced_resolution */ |
220 |
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} |
221 |
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222 |
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if (coding_type != I_VOP && fcode_forward) |
223 |
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{ |
224 |
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*fcode_forward = BitstreamGetBits(bs, 3); |
225 |
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DPRINTF(DPRINTF_HEADER,"fcode_forward %i", *fcode_forward); |
226 |
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} |
227 |
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228 |
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if (coding_type == B_VOP && fcode_backward) |
229 |
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{ |
230 |
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*fcode_backward = BitstreamGetBits(bs, 3); |
231 |
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DPRINTF(DPRINTF_HEADER,"fcode_backward %i", fcode_backward); |
232 |
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} |
233 |
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} |
234 |
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235 |
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} |
236 |
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237 |
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if (dec->newpred_enable) |
238 |
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{ |
239 |
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int vop_id; |
240 |
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int vop_id_for_prediction; |
241 |
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242 |
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vop_id = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); |
243 |
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DPRINTF(DPRINTF_HEADER, "vop_id %i", vop_id); |
244 |
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if (BitstreamGetBit(bs)) /* vop_id_for_prediction_indication */ |
245 |
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{ |
246 |
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vop_id_for_prediction = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); |
247 |
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DPRINTF(DPRINTF_HEADER, "vop_id_for_prediction %i", vop_id_for_prediction); |
248 |
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} |
249 |
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READ_MARKER(); |
250 |
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} |
251 |
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252 |
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return mbnum; |
253 |
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} |
254 |
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255 |
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256 |
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|
257 |
/* |
/* |
258 |
decode headers |
decode headers |
259 |
returns coding_type, or -1 if error |
returns coding_type, or -1 if error |
260 |
*/ |
*/ |
261 |
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|
262 |
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#define VIDOBJ_START_CODE_MASK 0x0000001f |
263 |
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#define VIDOBJLAY_START_CODE_MASK 0x0000000f |
264 |
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|
265 |
int |
int |
266 |
BitstreamReadHeaders(Bitstream * bs, |
BitstreamReadHeaders(Bitstream * bs, |
267 |
DECODER * dec, |
DECODER * dec, |
268 |
uint32_t * rounding, |
uint32_t * rounding, |
269 |
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uint32_t * reduced_resolution, |
270 |
uint32_t * quant, |
uint32_t * quant, |
271 |
uint32_t * fcode_forward, |
uint32_t * fcode_forward, |
272 |
uint32_t * fcode_backward, |
uint32_t * fcode_backward, |
273 |
uint32_t * intra_dc_threshold) |
uint32_t * intra_dc_threshold, |
274 |
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VECTOR * gmc_mv) |
275 |
{ |
{ |
276 |
uint32_t vol_ver_id; |
uint32_t vol_ver_id; |
|
static uint32_t time_increment_resolution; |
|
277 |
uint32_t coding_type; |
uint32_t coding_type; |
278 |
uint32_t start_code; |
uint32_t start_code; |
279 |
uint32_t time_incr = 0; |
uint32_t time_incr = 0; |
280 |
int32_t time_increment; |
int32_t time_increment; |
281 |
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int resize = 0; |
282 |
|
|
283 |
do { |
do { |
284 |
|
|
285 |
BitstreamByteAlign(bs); |
BitstreamByteAlign(bs); |
286 |
start_code = BitstreamShowBits(bs, 32); |
start_code = BitstreamShowBits(bs, 32); |
287 |
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|
288 |
if (start_code == VISOBJSEQ_START_CODE) { |
if (start_code == VISOBJSEQ_START_CODE) { |
289 |
// DEBUG("visual_object_sequence"); |
|
290 |
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int profile; |
291 |
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|
292 |
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DPRINTF(DPRINTF_STARTCODE, "<visual_object_sequence>"); |
293 |
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|
294 |
BitstreamSkip(bs, 32); // visual_object_sequence_start_code |
BitstreamSkip(bs, 32); // visual_object_sequence_start_code |
295 |
BitstreamSkip(bs, 8); // profile_and_level_indication |
profile = BitstreamGetBits(bs, 8); // profile_and_level_indication |
296 |
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|
297 |
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DPRINTF(DPRINTF_HEADER, "profile_and_level_indication %i", profile); |
298 |
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|
299 |
} else if (start_code == VISOBJSEQ_STOP_CODE) { |
} else if (start_code == VISOBJSEQ_STOP_CODE) { |
300 |
|
|
301 |
BitstreamSkip(bs, 32); // visual_object_sequence_stop_code |
BitstreamSkip(bs, 32); // visual_object_sequence_stop_code |
302 |
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|
303 |
|
DPRINTF(DPRINTF_STARTCODE, "</visual_object_sequence>"); |
304 |
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|
305 |
} else if (start_code == VISOBJ_START_CODE) { |
} else if (start_code == VISOBJ_START_CODE) { |
306 |
// DEBUG("visual_object"); |
|
307 |
|
DPRINTF(DPRINTF_STARTCODE, "<visual_object>"); |
308 |
|
|
309 |
BitstreamSkip(bs, 32); // visual_object_start_code |
BitstreamSkip(bs, 32); // visual_object_start_code |
310 |
if (BitstreamGetBit(bs)) // is_visual_object_identified |
if (BitstreamGetBit(bs)) // is_visual_object_identified |
311 |
{ |
{ |
312 |
vol_ver_id = BitstreamGetBits(bs, 4); // visual_object_ver_id |
vol_ver_id = BitstreamGetBits(bs, 4); // visual_object_ver_id |
313 |
|
DPRINTF(DPRINTF_HEADER,"ver_id %i", vol_ver_id); |
314 |
BitstreamSkip(bs, 3); // visual_object_priority |
BitstreamSkip(bs, 3); // visual_object_priority |
315 |
} else { |
} else { |
316 |
vol_ver_id = 1; |
vol_ver_id = 1; |
318 |
|
|
319 |
if (BitstreamShowBits(bs, 4) != VISOBJ_TYPE_VIDEO) // visual_object_type |
if (BitstreamShowBits(bs, 4) != VISOBJ_TYPE_VIDEO) // visual_object_type |
320 |
{ |
{ |
321 |
DEBUG("visual_object_type != video"); |
DPRINTF(DPRINTF_ERROR, "visual_object_type != video"); |
322 |
return -1; |
return -1; |
323 |
} |
} |
324 |
BitstreamSkip(bs, 4); |
BitstreamSkip(bs, 4); |
327 |
|
|
328 |
if (BitstreamGetBit(bs)) // video_signal_type |
if (BitstreamGetBit(bs)) // video_signal_type |
329 |
{ |
{ |
330 |
DEBUG("+ video_signal_type"); |
DPRINTF(DPRINTF_HEADER,"+ video_signal_type"); |
331 |
BitstreamSkip(bs, 3); // video_format |
BitstreamSkip(bs, 3); // video_format |
332 |
BitstreamSkip(bs, 1); // video_range |
BitstreamSkip(bs, 1); // video_range |
333 |
if (BitstreamGetBit(bs)) // color_description |
if (BitstreamGetBit(bs)) // color_description |
334 |
{ |
{ |
335 |
DEBUG("+ color_description"); |
DPRINTF(DPRINTF_HEADER,"+ color_description"); |
336 |
BitstreamSkip(bs, 8); // color_primaries |
BitstreamSkip(bs, 8); // color_primaries |
337 |
BitstreamSkip(bs, 8); // transfer_characteristics |
BitstreamSkip(bs, 8); // transfer_characteristics |
338 |
BitstreamSkip(bs, 8); // matrix_coefficients |
BitstreamSkip(bs, 8); // matrix_coefficients |
339 |
} |
} |
340 |
} |
} |
341 |
} else if ((start_code & ~0x1f) == VIDOBJ_START_CODE) { |
} else if ((start_code & ~VIDOBJ_START_CODE_MASK) == VIDOBJ_START_CODE) { |
342 |
|
|
343 |
|
DPRINTF(DPRINTF_STARTCODE, "<video_object>"); |
344 |
|
DPRINTF(DPRINTF_HEADER, "vo id %i", start_code & VIDOBJ_START_CODE_MASK); |
345 |
|
|
346 |
BitstreamSkip(bs, 32); // video_object_start_code |
BitstreamSkip(bs, 32); // video_object_start_code |
347 |
} else if ((start_code & ~0xf) == VIDOBJLAY_START_CODE) { |
|
348 |
// DEBUG("video_object_layer"); |
} else if ((start_code & ~VIDOBJLAY_START_CODE_MASK) == VIDOBJLAY_START_CODE) { |
349 |
|
|
350 |
|
DPRINTF(DPRINTF_STARTCODE, "<video_object_layer>"); |
351 |
|
DPRINTF(DPRINTF_HEADER, "vol id %i", start_code & VIDOBJLAY_START_CODE_MASK); |
352 |
|
|
353 |
BitstreamSkip(bs, 32); // video_object_layer_start_code |
BitstreamSkip(bs, 32); // video_object_layer_start_code |
354 |
|
|
355 |
BitstreamSkip(bs, 1); // random_accessible_vol |
BitstreamSkip(bs, 1); // random_accessible_vol |
356 |
|
|
357 |
// video_object_type_indication |
// video_object_type_indication |
358 |
if (BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_SIMPLE && BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_CORE && BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_MAIN && BitstreamShowBits(bs, 8) != 0) // BUGGY DIVX |
if (BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_SIMPLE && |
359 |
|
BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_CORE && |
360 |
|
BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_MAIN && |
361 |
|
BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_ACE && |
362 |
|
BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_ART_SIMPLE && |
363 |
|
BitstreamShowBits(bs, 8) != 0) // BUGGY DIVX |
364 |
{ |
{ |
365 |
DEBUG1("video_object_type_indication not supported", |
DPRINTF(DPRINTF_ERROR,"video_object_type_indication %i not supported ", |
366 |
BitstreamShowBits(bs, 8)); |
BitstreamShowBits(bs, 8)); |
367 |
return -1; |
return -1; |
368 |
} |
} |
371 |
|
|
372 |
if (BitstreamGetBit(bs)) // is_object_layer_identifier |
if (BitstreamGetBit(bs)) // is_object_layer_identifier |
373 |
{ |
{ |
374 |
DEBUG("+ is_object_layer_identifier"); |
DPRINTF(DPRINTF_HEADER, "+ is_object_layer_identifier"); |
375 |
vol_ver_id = BitstreamGetBits(bs, 4); // video_object_layer_verid |
vol_ver_id = BitstreamGetBits(bs, 4); // video_object_layer_verid |
376 |
|
DPRINTF(DPRINTF_HEADER,"ver_id %i", vol_ver_id); |
377 |
BitstreamSkip(bs, 3); // video_object_layer_priority |
BitstreamSkip(bs, 3); // video_object_layer_priority |
378 |
} else { |
} else { |
379 |
vol_ver_id = 1; |
vol_ver_id = 1; |
380 |
} |
} |
|
//DEBUGI("vol_ver_id", vol_ver_id); |
|
381 |
|
|
382 |
if (BitstreamGetBits(bs, 4) == VIDOBJLAY_AR_EXTPAR) // aspect_ratio_info |
dec->aspect_ratio = BitstreamGetBits(bs, 4); |
383 |
|
|
384 |
|
if (dec->aspect_ratio == VIDOBJLAY_AR_EXTPAR) // aspect_ratio_info |
385 |
{ |
{ |
386 |
DEBUG("+ aspect_ratio_info"); |
DPRINTF(DPRINTF_HEADER, "+ aspect_ratio_info"); |
387 |
BitstreamSkip(bs, 8); // par_width |
dec->par_width = BitstreamGetBits(bs, 8); // par_width |
388 |
BitstreamSkip(bs, 8); // par_height |
dec->par_height = BitstreamGetBits(bs, 8); // par_height |
389 |
} |
} |
390 |
|
|
391 |
if (BitstreamGetBit(bs)) // vol_control_parameters |
if (BitstreamGetBit(bs)) // vol_control_parameters |
392 |
{ |
{ |
393 |
DEBUG("+ vol_control_parameters"); |
DPRINTF(DPRINTF_HEADER, "+ vol_control_parameters"); |
394 |
BitstreamSkip(bs, 2); // chroma_format |
BitstreamSkip(bs, 2); // chroma_format |
395 |
dec->low_delay = BitstreamGetBit(bs); // low_delay |
dec->low_delay = BitstreamGetBit(bs); // low_delay |
396 |
|
DPRINTF(DPRINTF_HEADER, "low_delay %i", dec->low_delay); |
397 |
if (BitstreamGetBit(bs)) // vbv_parameters |
if (BitstreamGetBit(bs)) // vbv_parameters |
398 |
{ |
{ |
399 |
DEBUG("+ vbv_parameters"); |
DPRINTF(DPRINTF_HEADER,"+ vbv_parameters"); |
400 |
BitstreamSkip(bs, 15); // first_half_bitrate |
BitstreamSkip(bs, 15); // first_half_bitrate |
401 |
READ_MARKER(); |
READ_MARKER(); |
402 |
BitstreamSkip(bs, 15); // latter_half_bitrate |
BitstreamSkip(bs, 15); // latter_half_bitrate |
408 |
READ_MARKER(); |
READ_MARKER(); |
409 |
BitstreamSkip(bs, 15); // latter_half_vbv_occupancy |
BitstreamSkip(bs, 15); // latter_half_vbv_occupancy |
410 |
READ_MARKER(); |
READ_MARKER(); |
|
|
|
411 |
} |
} |
412 |
} |
} |
413 |
|
|
414 |
dec->shape = BitstreamGetBits(bs, 2); // video_object_layer_shape |
dec->shape = BitstreamGetBits(bs, 2); // video_object_layer_shape |
415 |
// DEBUG1("shape", dec->shape); |
|
416 |
|
DPRINTF(DPRINTF_HEADER, "shape %i", dec->shape); |
417 |
|
if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
418 |
|
{ |
419 |
|
DPRINTF(DPRINTF_ERROR,"non-rectangular shapes are not supported"); |
420 |
|
} |
421 |
|
|
422 |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE && vol_ver_id != 1) { |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE && vol_ver_id != 1) { |
423 |
BitstreamSkip(bs, 4); // video_object_layer_shape_extension |
BitstreamSkip(bs, 4); // video_object_layer_shape_extension |
426 |
READ_MARKER(); |
READ_MARKER(); |
427 |
|
|
428 |
// *************************** for decode B-frame time *********************** |
// *************************** for decode B-frame time *********************** |
429 |
time_increment_resolution = BitstreamGetBits(bs, 16); // vop_time_increment_resolution |
dec->time_inc_resolution = BitstreamGetBits(bs, 16); // vop_time_increment_resolution |
430 |
time_increment_resolution--; |
DPRINTF(DPRINTF_HEADER,"vop_time_increment_resolution %i", dec->time_inc_resolution); |
431 |
//DEBUG1("time_increment_resolution=",time_increment_resolution); |
|
432 |
if (time_increment_resolution > 0) { |
// dec->time_inc_resolution--; |
433 |
dec->time_inc_bits = log2bin(time_increment_resolution); |
|
434 |
|
if (dec->time_inc_resolution > 0) { |
435 |
|
dec->time_inc_bits = log2bin(dec->time_inc_resolution-1); |
436 |
} else { |
} else { |
437 |
// dec->time_inc_bits = 0; |
// dec->time_inc_bits = 0; |
|
|
|
438 |
// for "old" xvid compatibility, set time_inc_bits = 1 |
// for "old" xvid compatibility, set time_inc_bits = 1 |
439 |
dec->time_inc_bits = 1; |
dec->time_inc_bits = 1; |
440 |
} |
} |
443 |
|
|
444 |
if (BitstreamGetBit(bs)) // fixed_vop_rate |
if (BitstreamGetBit(bs)) // fixed_vop_rate |
445 |
{ |
{ |
446 |
|
DPRINTF(DPRINTF_HEADER, "+ fixed_vop_rate"); |
447 |
BitstreamSkip(bs, dec->time_inc_bits); // fixed_vop_time_increment |
BitstreamSkip(bs, dec->time_inc_bits); // fixed_vop_time_increment |
448 |
} |
} |
449 |
|
|
454 |
|
|
455 |
READ_MARKER(); |
READ_MARKER(); |
456 |
width = BitstreamGetBits(bs, 13); // video_object_layer_width |
width = BitstreamGetBits(bs, 13); // video_object_layer_width |
|
//DEBUGI("width", width); |
|
457 |
READ_MARKER(); |
READ_MARKER(); |
458 |
height = BitstreamGetBits(bs, 13); // video_object_layer_height |
height = BitstreamGetBits(bs, 13); // video_object_layer_height |
|
//DEBUGI("height", height); |
|
459 |
READ_MARKER(); |
READ_MARKER(); |
460 |
|
|
461 |
if (width != dec->width || height != dec->height) { |
DPRINTF(DPRINTF_HEADER, "width %i", width); |
462 |
DEBUG("FATAL: video dimension discrepancy ***"); |
DPRINTF(DPRINTF_HEADER, "height %i", height); |
463 |
DEBUG2("bitstream width/height", width, height); |
|
464 |
DEBUG2("param width/height", dec->width, dec->height); |
if (dec->width != width || dec->height != height) |
465 |
|
{ |
466 |
|
if (dec->fixed_dimensions) |
467 |
|
{ |
468 |
|
DPRINTF(DPRINTF_ERROR, "XVID_DEC_PARAM width/height does not match bitstream"); |
469 |
return -1; |
return -1; |
470 |
} |
} |
471 |
|
resize = 1; |
472 |
|
dec->width = width; |
473 |
|
dec->height = height; |
474 |
} |
} |
|
|
|
|
if ((dec->interlacing = BitstreamGetBit(bs))) { |
|
|
DEBUG("vol: interlacing"); |
|
475 |
} |
} |
476 |
|
|
477 |
|
dec->interlacing = BitstreamGetBit(bs); |
478 |
|
DPRINTF(DPRINTF_HEADER, "interlacing %i", dec->interlacing); |
479 |
|
|
480 |
if (!BitstreamGetBit(bs)) // obmc_disable |
if (!BitstreamGetBit(bs)) // obmc_disable |
481 |
{ |
{ |
482 |
DEBUG("IGNORED/TODO: !obmc_disable"); |
DPRINTF(DPRINTF_ERROR, "obmc_disabled==false not supported"); |
483 |
// TODO |
// TODO |
484 |
// fucking divx4.02 has this enabled |
// fucking divx4.02 has this enabled |
485 |
} |
} |
486 |
|
|
487 |
if (BitstreamGetBits(bs, (vol_ver_id == 1 ? 1 : 2))) // sprite_enable |
dec->sprite_enable = BitstreamGetBits(bs, (vol_ver_id == 1 ? 1 : 2)); // sprite_enable |
488 |
|
|
489 |
|
if (dec->sprite_enable == SPRITE_STATIC || dec->sprite_enable == SPRITE_GMC) |
490 |
{ |
{ |
491 |
DEBUG("sprite_enable; not supported"); |
int low_latency_sprite_enable; |
492 |
return -1; |
|
493 |
|
if (dec->sprite_enable != SPRITE_GMC) |
494 |
|
{ |
495 |
|
int sprite_width; |
496 |
|
int sprite_height; |
497 |
|
int sprite_left_coord; |
498 |
|
int sprite_top_coord; |
499 |
|
sprite_width = BitstreamGetBits(bs, 13); // sprite_width |
500 |
|
READ_MARKER(); |
501 |
|
sprite_height = BitstreamGetBits(bs, 13); // sprite_height |
502 |
|
READ_MARKER(); |
503 |
|
sprite_left_coord = BitstreamGetBits(bs, 13); // sprite_left_coordinate |
504 |
|
READ_MARKER(); |
505 |
|
sprite_top_coord = BitstreamGetBits(bs, 13); // sprite_top_coordinate |
506 |
|
READ_MARKER(); |
507 |
|
} |
508 |
|
dec->sprite_warping_points = BitstreamGetBits(bs, 6); // no_of_sprite_warping_points |
509 |
|
dec->sprite_warping_accuracy = BitstreamGetBits(bs, 2); // sprite_warping_accuracy |
510 |
|
dec->sprite_brightness_change = BitstreamGetBits(bs, 1); // brightness_change |
511 |
|
if (dec->sprite_enable != SPRITE_GMC) |
512 |
|
{ |
513 |
|
low_latency_sprite_enable = BitstreamGetBits(bs, 1); // low_latency_sprite_enable |
514 |
|
} |
515 |
} |
} |
516 |
|
|
517 |
if (vol_ver_id != 1 && |
if (vol_ver_id != 1 && |
521 |
|
|
522 |
if (BitstreamGetBit(bs)) // not_8_bit |
if (BitstreamGetBit(bs)) // not_8_bit |
523 |
{ |
{ |
524 |
DEBUG("+ not_8_bit [IGNORED/TODO]"); |
DPRINTF(DPRINTF_HEADER, "not_8_bit==true (ignored)"); |
525 |
dec->quant_bits = BitstreamGetBits(bs, 4); // quant_precision |
dec->quant_bits = BitstreamGetBits(bs, 4); // quant_precision |
526 |
BitstreamSkip(bs, 4); // bits_per_pixel |
BitstreamSkip(bs, 4); // bits_per_pixel |
527 |
} else { |
} else { |
535 |
} |
} |
536 |
|
|
537 |
dec->quant_type = BitstreamGetBit(bs); // quant_type |
dec->quant_type = BitstreamGetBit(bs); // quant_type |
538 |
// DEBUG1("**** quant_type", dec->quant_type); |
DPRINTF(DPRINTF_HEADER, "quant_type %i", dec->quant_type); |
539 |
|
|
540 |
if (dec->quant_type) { |
if (dec->quant_type) { |
541 |
if (BitstreamGetBit(bs)) // load_intra_quant_mat |
if (BitstreamGetBit(bs)) // load_intra_quant_mat |
542 |
{ |
{ |
543 |
uint8_t matrix[64]; |
uint8_t matrix[64]; |
544 |
|
|
545 |
|
DPRINTF(DPRINTF_HEADER, "load_intra_quant_mat"); |
546 |
|
|
547 |
bs_get_matrix(bs, matrix); |
bs_get_matrix(bs, matrix); |
548 |
set_intra_matrix(matrix); |
set_intra_matrix(matrix); |
549 |
} else |
} else |
553 |
{ |
{ |
554 |
uint8_t matrix[64]; |
uint8_t matrix[64]; |
555 |
|
|
556 |
|
DPRINTF(DPRINTF_HEADER, "load_inter_quant_mat"); |
557 |
|
|
558 |
bs_get_matrix(bs, matrix); |
bs_get_matrix(bs, matrix); |
559 |
set_inter_matrix(matrix); |
set_inter_matrix(matrix); |
560 |
} else |
} else |
561 |
set_inter_matrix(get_default_inter_matrix()); |
set_inter_matrix(get_default_inter_matrix()); |
562 |
|
|
563 |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE) { |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE) { |
564 |
// TODO |
DPRINTF(DPRINTF_ERROR, "greyscale matrix not supported"); |
|
DEBUG("TODO: grayscale matrix stuff"); |
|
565 |
return -1; |
return -1; |
566 |
} |
} |
567 |
|
|
569 |
|
|
570 |
|
|
571 |
if (vol_ver_id != 1) { |
if (vol_ver_id != 1) { |
572 |
dec->quarterpel = BitstreamGetBit(bs); // quarter_sampe |
dec->quarterpel = BitstreamGetBit(bs); // quarter_sample |
573 |
if (dec->quarterpel) { |
DPRINTF(DPRINTF_HEADER,"quarterpel %i", dec->quarterpel); |
|
DEBUG("IGNORED/TODO: quarter_sample"); |
|
574 |
} |
} |
575 |
} else { |
else |
576 |
dec->quarterpel = 0; |
dec->quarterpel = 0; |
577 |
} |
|
578 |
|
|
579 |
if (!BitstreamGetBit(bs)) // complexity_estimation_disable |
if (!BitstreamGetBit(bs)) // complexity_estimation_disable |
580 |
{ |
{ |
581 |
DEBUG("TODO: complexity_estimation header"); |
DPRINTF(DPRINTF_ERROR, "complexity_estimation not supported"); |
|
// TODO |
|
582 |
return -1; |
return -1; |
583 |
} |
} |
584 |
|
|
585 |
if (!BitstreamGetBit(bs)) // resync_marker_disable |
BitstreamSkip(bs, 1); // resync_marker_disable |
|
{ |
|
|
DEBUG("IGNORED/TODO: !resync_marker_disable"); |
|
|
// TODO |
|
|
} |
|
586 |
|
|
587 |
if (BitstreamGetBit(bs)) // data_partitioned |
if (BitstreamGetBit(bs)) // data_partitioned |
588 |
{ |
{ |
589 |
DEBUG("+ data_partitioned"); |
DPRINTF(DPRINTF_ERROR, "data_partitioned not supported"); |
590 |
BitstreamSkip(bs, 1); // reversible_vlc |
BitstreamSkip(bs, 1); // reversible_vlc |
591 |
} |
} |
592 |
|
|
593 |
if (vol_ver_id != 1) { |
if (vol_ver_id != 1) { |
594 |
if (BitstreamGetBit(bs)) // newpred_enable |
dec->newpred_enable = BitstreamGetBit(bs); |
595 |
|
if (dec->newpred_enable) // newpred_enable |
596 |
{ |
{ |
597 |
DEBUG("+ newpred_enable"); |
DPRINTF(DPRINTF_HEADER, "+ newpred_enable"); |
598 |
BitstreamSkip(bs, 2); // requested_upstream_message_type |
BitstreamSkip(bs, 2); // requested_upstream_message_type |
599 |
BitstreamSkip(bs, 1); // newpred_segment_type |
BitstreamSkip(bs, 1); // newpred_segment_type |
600 |
} |
} |
601 |
if (BitstreamGetBit(bs)) // reduced_resolution_vop_enable |
dec->reduced_resolution_enable = BitstreamGetBit(bs); |
602 |
|
if (dec->reduced_resolution_enable) // reduced_resolution_vop_enable |
603 |
{ |
{ |
604 |
DEBUG("TODO: reduced_resolution_vop_enable"); |
DPRINTF(DPRINTF_ERROR, "reduced_resolution_vop not supported"); |
605 |
// TODO |
//return -1; |
|
return -1; |
|
606 |
} |
} |
607 |
} |
} |
608 |
|
else |
609 |
|
{ |
610 |
|
dec->newpred_enable = 0; |
611 |
|
dec->reduced_resolution_enable = 0; |
612 |
|
} |
613 |
|
|
614 |
if ((dec->scalability = BitstreamGetBit(bs))) // scalability |
if ((dec->scalability = BitstreamGetBit(bs))) // scalability |
615 |
{ |
{ |
616 |
// TODO |
DPRINTF(DPRINTF_ERROR, "scalability not supported"); |
|
DEBUG("TODO: scalability"); |
|
617 |
return -1; |
return -1; |
618 |
} |
} |
619 |
} else // dec->shape == BINARY_ONLY |
} else // dec->shape == BINARY_ONLY |
621 |
if (vol_ver_id != 1) { |
if (vol_ver_id != 1) { |
622 |
if (BitstreamGetBit(bs)) // scalability |
if (BitstreamGetBit(bs)) // scalability |
623 |
{ |
{ |
624 |
// TODO |
DPRINTF(DPRINTF_ERROR, "scalability not supported"); |
|
DEBUG("TODO: scalability"); |
|
625 |
return -1; |
return -1; |
626 |
} |
} |
627 |
} |
} |
629 |
|
|
630 |
} |
} |
631 |
|
|
632 |
|
return (resize ? -3 : -2 ); /* VOL */ |
633 |
|
|
634 |
} else if (start_code == GRPOFVOP_START_CODE) { |
} else if (start_code == GRPOFVOP_START_CODE) { |
635 |
// DEBUG("group_of_vop"); |
|
636 |
|
DPRINTF(DPRINTF_STARTCODE, "<group_of_vop>"); |
637 |
|
|
638 |
BitstreamSkip(bs, 32); |
BitstreamSkip(bs, 32); |
639 |
{ |
{ |
640 |
int hours, minutes, seconds; |
int hours, minutes, seconds; |
643 |
minutes = BitstreamGetBits(bs, 6); |
minutes = BitstreamGetBits(bs, 6); |
644 |
READ_MARKER(); |
READ_MARKER(); |
645 |
seconds = BitstreamGetBits(bs, 6); |
seconds = BitstreamGetBits(bs, 6); |
646 |
// DEBUG3("hms", hours, minutes, seconds); |
|
647 |
|
DPRINTF(DPRINTF_HEADER, "time %ih%im%is", hours); |
648 |
} |
} |
649 |
BitstreamSkip(bs, 1); // closed_gov |
BitstreamSkip(bs, 1); // closed_gov |
650 |
BitstreamSkip(bs, 1); // broken_link |
BitstreamSkip(bs, 1); // broken_link |
651 |
|
|
652 |
} else if (start_code == VOP_START_CODE) { |
} else if (start_code == VOP_START_CODE) { |
653 |
// DEBUG("vop_start_code"); |
|
654 |
|
DPRINTF(DPRINTF_STARTCODE, "<vop>"); |
655 |
|
|
656 |
BitstreamSkip(bs, 32); // vop_start_code |
BitstreamSkip(bs, 32); // vop_start_code |
657 |
|
|
658 |
coding_type = BitstreamGetBits(bs, 2); // vop_coding_type |
coding_type = BitstreamGetBits(bs, 2); // vop_coding_type |
659 |
//DEBUG1("coding_type", coding_type); |
DPRINTF(DPRINTF_HEADER, "coding_type %i", coding_type); |
660 |
|
|
661 |
// *************************** for decode B-frame time *********************** |
// *************************** for decode B-frame time *********************** |
662 |
while (BitstreamGetBit(bs) != 0) // time_base |
while (BitstreamGetBit(bs) != 0) // time_base |
664 |
|
|
665 |
READ_MARKER(); |
READ_MARKER(); |
666 |
|
|
|
//DEBUG1("time_inc_bits", dec->time_inc_bits); |
|
|
//DEBUG1("vop_time_incr", BitstreamShowBits(bs, dec->time_inc_bits)); |
|
667 |
if (dec->time_inc_bits) { |
if (dec->time_inc_bits) { |
|
//BitstreamSkip(bs, dec->time_inc_bits); // vop_time_increment |
|
668 |
time_increment = (BitstreamGetBits(bs, dec->time_inc_bits)); // vop_time_increment |
time_increment = (BitstreamGetBits(bs, dec->time_inc_bits)); // vop_time_increment |
669 |
} |
} |
670 |
|
|
671 |
|
DPRINTF(DPRINTF_HEADER, "time_base %i", time_incr); |
672 |
|
DPRINTF(DPRINTF_HEADER, "time_increment %i", time_increment); |
673 |
|
|
674 |
|
DPRINTF(DPRINTF_TIMECODE, "%c %i:%i", |
675 |
|
coding_type == I_VOP ? 'I' : coding_type == P_VOP ? 'P' : coding_type == B_VOP ? 'B' : 'S', |
676 |
|
time_incr, time_increment); |
677 |
|
|
678 |
if (coding_type != B_VOP) { |
if (coding_type != B_VOP) { |
679 |
dec->last_time_base = dec->time_base; |
dec->last_time_base = dec->time_base; |
680 |
dec->time_base += time_incr; |
dec->time_base += time_incr; |
681 |
dec->time = |
dec->time = time_increment; |
682 |
dec->time_base * time_increment_resolution + |
|
683 |
|
/* dec->time_base * dec->time_inc_resolution + |
684 |
time_increment; |
time_increment; |
685 |
dec->time_pp = (uint32_t) (dec->time - dec->last_non_b_time); |
*/ dec->time_pp = (uint32_t) |
686 |
|
(dec->time_inc_resolution + dec->time - dec->last_non_b_time)%dec->time_inc_resolution; |
687 |
dec->last_non_b_time = dec->time; |
dec->last_non_b_time = dec->time; |
688 |
} else { |
} else { |
689 |
dec->time = |
dec->time = time_increment; |
690 |
|
/* |
691 |
(dec->last_time_base + |
(dec->last_time_base + |
692 |
time_incr) * time_increment_resolution + time_increment; |
time_incr) * dec->time_inc_resolution + time_increment; |
693 |
dec->time_bp = (uint32_t) (dec->last_non_b_time - dec->time); |
*/ |
694 |
|
dec->time_bp = (uint32_t) |
695 |
|
(dec->time_inc_resolution + dec->last_non_b_time - dec->time)%dec->time_inc_resolution; |
696 |
} |
} |
|
//DEBUG1("time_increment=",time_increment); |
|
697 |
|
|
698 |
READ_MARKER(); |
READ_MARKER(); |
699 |
|
|
700 |
if (!BitstreamGetBit(bs)) // vop_coded |
if (!BitstreamGetBit(bs)) // vop_coded |
701 |
{ |
{ |
702 |
|
DPRINTF(DPRINTF_HEADER, "vop_coded==false"); |
703 |
return N_VOP; |
return N_VOP; |
704 |
} |
} |
705 |
|
|
706 |
/* if (newpred_enable) |
if (dec->newpred_enable) |
707 |
{ |
{ |
708 |
|
int vop_id; |
709 |
|
int vop_id_for_prediction; |
710 |
|
|
711 |
|
vop_id = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); |
712 |
|
DPRINTF(DPRINTF_HEADER, "vop_id %i", vop_id); |
713 |
|
if (BitstreamGetBit(bs)) /* vop_id_for_prediction_indication */ |
714 |
|
{ |
715 |
|
vop_id_for_prediction = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); |
716 |
|
DPRINTF(DPRINTF_HEADER, "vop_id_for_prediction %i", vop_id_for_prediction); |
717 |
} |
} |
718 |
*/ |
READ_MARKER(); |
719 |
|
} |
720 |
|
|
721 |
|
|
722 |
|
|
723 |
// fix a little bug by MinChen <chenm002@163.com> |
// fix a little bug by MinChen <chenm002@163.com> |
724 |
if ((dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) && |
if ((dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) && |
725 |
(coding_type == P_VOP)) { |
( (coding_type == P_VOP) || (coding_type == S_VOP && dec->sprite_enable == SPRITE_GMC) ) ) { |
726 |
*rounding = BitstreamGetBit(bs); // rounding_type |
*rounding = BitstreamGetBit(bs); // rounding_type |
727 |
//DEBUG1("rounding", *rounding); |
DPRINTF(DPRINTF_HEADER, "rounding %i", *rounding); |
728 |
} |
} |
729 |
|
|
730 |
/* if (reduced_resolution_enable) |
if (dec->reduced_resolution_enable && |
731 |
|
dec->shape == VIDOBJLAY_SHAPE_RECTANGULAR && |
732 |
|
(coding_type == P_VOP || coding_type == I_VOP)) { |
733 |
|
|
734 |
|
*reduced_resolution = BitstreamGetBit(bs); |
735 |
|
} |
736 |
|
else |
737 |
{ |
{ |
738 |
|
*reduced_resolution = 0; |
739 |
} |
} |
|
*/ |
|
740 |
|
|
741 |
if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) { |
if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) { |
742 |
|
if(!(dec->sprite_enable == SPRITE_STATIC && coding_type == I_VOP)) { |
743 |
|
|
744 |
uint32_t width, height; |
uint32_t width, height; |
745 |
uint32_t horiz_mc_ref, vert_mc_ref; |
uint32_t horiz_mc_ref, vert_mc_ref; |
746 |
|
|
753 |
vert_mc_ref = BitstreamGetBits(bs, 13); |
vert_mc_ref = BitstreamGetBits(bs, 13); |
754 |
READ_MARKER(); |
READ_MARKER(); |
755 |
|
|
756 |
// DEBUG2("vop_width/height", width, height); |
DPRINTF(DPRINTF_HEADER, "width %i", width); |
757 |
// DEBUG2("ref ", horiz_mc_ref, vert_mc_ref); |
DPRINTF(DPRINTF_HEADER, "height %i", height); |
758 |
|
DPRINTF(DPRINTF_HEADER, "horiz_mc_ref %i", horiz_mc_ref); |
759 |
|
DPRINTF(DPRINTF_HEADER, "vert_mc_ref %i", vert_mc_ref); |
760 |
|
} |
761 |
|
|
762 |
BitstreamSkip(bs, 1); // change_conv_ratio_disable |
BitstreamSkip(bs, 1); // change_conv_ratio_disable |
763 |
if (BitstreamGetBit(bs)) // vop_constant_alpha |
if (BitstreamGetBit(bs)) // vop_constant_alpha |
766 |
} |
} |
767 |
} |
} |
768 |
|
|
|
|
|
769 |
if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) { |
if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) { |
770 |
// intra_dc_vlc_threshold |
// intra_dc_vlc_threshold |
771 |
*intra_dc_threshold = |
*intra_dc_threshold = |
772 |
intra_dc_threshold_table[BitstreamGetBits(bs, 3)]; |
intra_dc_threshold_table[BitstreamGetBits(bs, 3)]; |
773 |
|
|
774 |
|
dec->top_field_first = 0; |
775 |
|
dec->alternate_vertical_scan = 0; |
776 |
|
|
777 |
if (dec->interlacing) { |
if (dec->interlacing) { |
778 |
if ((dec->top_field_first = BitstreamGetBit(bs))) { |
dec->top_field_first = BitstreamGetBit(bs); |
779 |
DEBUG("vop: top_field_first"); |
DPRINTF(DPRINTF_HEADER, "interlace top_field_first %i", dec->top_field_first); |
780 |
|
dec->alternate_vertical_scan = BitstreamGetBit(bs); |
781 |
|
DPRINTF(DPRINTF_HEADER, "interlace alternate_vertical_scan %i", dec->alternate_vertical_scan); |
782 |
|
|
783 |
} |
} |
|
if ((dec->alternate_vertical_scan = BitstreamGetBit(bs))) { |
|
|
DEBUG("vop: alternate_vertical_scan"); |
|
784 |
} |
} |
785 |
|
|
786 |
|
if ((dec->sprite_enable == SPRITE_STATIC || dec->sprite_enable== SPRITE_GMC) && coding_type == S_VOP) { |
787 |
|
|
788 |
|
int i; |
789 |
|
|
790 |
|
for (i = 0 ; i < dec->sprite_warping_points; i++) |
791 |
|
{ |
792 |
|
int length; |
793 |
|
int x = 0, y = 0; |
794 |
|
|
795 |
|
/* sprite code borowed from ffmpeg; thx Michael Niedermayer <michaelni@gmx.at> */ |
796 |
|
length = bs_get_spritetrajectory(bs); |
797 |
|
if(length){ |
798 |
|
x= BitstreamGetBits(bs, length); |
799 |
|
if ((x >> (length - 1)) == 0) /* if MSB not set it is negative*/ |
800 |
|
x = - (x ^ ((1 << length) - 1)); |
801 |
} |
} |
802 |
|
READ_MARKER(); |
803 |
|
|
804 |
|
length = bs_get_spritetrajectory(bs); |
805 |
|
if(length){ |
806 |
|
y = BitstreamGetBits(bs, length); |
807 |
|
if ((y >> (length - 1)) == 0) /* if MSB not set it is negative*/ |
808 |
|
y = - (y ^ ((1 << length) - 1)); |
809 |
|
} |
810 |
|
READ_MARKER(); |
811 |
|
|
812 |
|
gmc_mv[i].x = x; |
813 |
|
gmc_mv[i].y = y; |
814 |
|
|
815 |
|
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i)", i, x, y); |
816 |
|
} |
817 |
|
|
818 |
|
if (dec->sprite_brightness_change) |
819 |
|
{ |
820 |
|
// XXX: brightness_change_factor() |
821 |
|
} |
822 |
|
if (dec->sprite_enable == SPRITE_STATIC) |
823 |
|
{ |
824 |
|
// XXX: todo |
825 |
|
} |
826 |
|
|
827 |
} |
} |
828 |
|
|
829 |
if ((*quant = BitstreamGetBits(bs, dec->quant_bits)) < 1) // vop_quant |
if ((*quant = BitstreamGetBits(bs, dec->quant_bits)) < 1) // vop_quant |
830 |
*quant = 1; |
*quant = 1; |
831 |
|
DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
|
//DEBUG1("quant", *quant); |
|
832 |
|
|
833 |
if (coding_type != I_VOP) { |
if (coding_type != I_VOP) { |
834 |
*fcode_forward = BitstreamGetBits(bs, 3); // fcode_forward |
*fcode_forward = BitstreamGetBits(bs, 3); // fcode_forward |
835 |
|
DPRINTF(DPRINTF_HEADER, "fcode_forward %i", *fcode_forward); |
836 |
} |
} |
837 |
|
|
838 |
if (coding_type == B_VOP) { |
if (coding_type == B_VOP) { |
839 |
*fcode_backward = BitstreamGetBits(bs, 3); // fcode_backward |
*fcode_backward = BitstreamGetBits(bs, 3); // fcode_backward |
840 |
|
DPRINTF(DPRINTF_HEADER, "fcode_backward %i", *fcode_backward); |
841 |
} |
} |
842 |
if (!dec->scalability) { |
if (!dec->scalability) { |
843 |
if ((dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) && |
if ((dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) && |
846 |
} |
} |
847 |
} |
} |
848 |
return coding_type; |
return coding_type; |
849 |
|
|
850 |
} else if (start_code == USERDATA_START_CODE) { |
} else if (start_code == USERDATA_START_CODE) { |
851 |
// DEBUG("user_data"); |
char tmp[256]; |
852 |
|
int i; |
853 |
|
|
854 |
BitstreamSkip(bs, 32); // user_data_start_code |
BitstreamSkip(bs, 32); // user_data_start_code |
855 |
|
|
856 |
|
tmp[0] = BitstreamShowBits(bs, 8); |
857 |
|
|
858 |
|
for(i = 1; i < 256; i++){ |
859 |
|
tmp[i] = (BitstreamShowBits(bs, 16) & 0xFF); |
860 |
|
|
861 |
|
if(tmp[i] == 0) |
862 |
|
break; |
863 |
|
|
864 |
|
BitstreamSkip(bs, 8); |
865 |
|
} |
866 |
|
|
867 |
|
DPRINTF(DPRINTF_STARTCODE, "<user_data>: %s\n", tmp); |
868 |
|
|
869 |
|
if(strncmp(tmp, "DivX501b481p", 12) == 0) { |
870 |
|
dec->packed_mode = 1; |
871 |
|
DPRINTF(DPRINTF_STARTCODE, "packed_mode = %d\n", dec->packed_mode); |
872 |
|
|
873 |
|
} |
874 |
} else // start_code == ? |
} else // start_code == ? |
875 |
{ |
{ |
876 |
if (BitstreamShowBits(bs, 24) == 0x000001) { |
if (BitstreamShowBits(bs, 24) == 0x000001) { |
877 |
DEBUG1("*** WARNING: unknown start_code", |
DPRINTF(DPRINTF_STARTCODE, "<unknown: %x>", BitstreamShowBits(bs, 32)); |
|
BitstreamShowBits(bs, 32)); |
|
878 |
} |
} |
879 |
BitstreamSkip(bs, 8); |
BitstreamSkip(bs, 8); |
880 |
} |
} |
881 |
} |
} |
882 |
while ((BitstreamPos(bs) >> 3) < bs->length); |
while ((BitstreamPos(bs) >> 3) < bs->length); |
883 |
|
|
884 |
DEBUG("*** WARNING: no vop_start_code found"); |
//DPRINTF("*** WARNING: no vop_start_code found"); |
885 |
return -1; /* ignore it */ |
return -1; /* ignore it */ |
886 |
} |
} |
887 |
|
|
895 |
int i, j; |
int i, j; |
896 |
const int last = matrix[scan_tables[0][63]]; |
const int last = matrix[scan_tables[0][63]]; |
897 |
|
|
898 |
for (j = 63; j >= 0 && matrix[scan_tables[0][j - 1]] == last; j--); |
for (j = 63; j > 0 && matrix[scan_tables[0][j - 1]] == last; j--); |
899 |
|
|
900 |
for (i = 0; i <= j; i++) { |
for (i = 0; i <= j; i++) { |
901 |
BitstreamPutBits(bs, matrix[scan_tables[0][i]], 8); |
BitstreamPutBits(bs, matrix[scan_tables[0][i]], 8); |
913 |
void |
void |
914 |
BitstreamWriteVolHeader(Bitstream * const bs, |
BitstreamWriteVolHeader(Bitstream * const bs, |
915 |
const MBParam * pParam, |
const MBParam * pParam, |
916 |
const FRAMEINFO * frame) |
const FRAMEINFO * const frame) |
917 |
{ |
{ |
918 |
|
int vol_ver_id=1; |
919 |
|
|
920 |
|
if ( (pParam->m_quarterpel) || (frame->global_flags & XVID_GMC) ) |
921 |
|
vol_ver_id = 2; |
922 |
|
|
923 |
// video object_start_code & vo_id |
// video object_start_code & vo_id |
924 |
BitstreamPad(bs); |
BitstreamPad(bs); |
925 |
BitstreamPutBits(bs, VO_START_CODE, 27); |
BitstreamPutBits(bs, VO_START_CODE, 27); |
931 |
|
|
932 |
BitstreamPutBit(bs, 0); // random_accessible_vol |
BitstreamPutBit(bs, 0); // random_accessible_vol |
933 |
BitstreamPutBits(bs, 0, 8); // video_object_type_indication |
BitstreamPutBits(bs, 0, 8); // video_object_type_indication |
934 |
|
|
935 |
|
if (vol_ver_id == 1) |
936 |
|
{ |
937 |
BitstreamPutBit(bs, 0); // is_object_layer_identified (0=not given) |
BitstreamPutBit(bs, 0); // is_object_layer_identified (0=not given) |
938 |
|
} |
939 |
|
else |
940 |
|
{ |
941 |
|
BitstreamPutBit(bs, 1); // is_object_layer_identified |
942 |
|
BitstreamPutBits(bs, vol_ver_id, 4); // vol_ver_id == 2 |
943 |
|
BitstreamPutBits(bs, 4, 3); // vol_ver_priority (1==lowest, 7==highest) ?? |
944 |
|
} |
945 |
|
|
946 |
BitstreamPutBits(bs, 1, 4); // aspect_ratio_info (1=1:1) |
BitstreamPutBits(bs, 1, 4); // aspect_ratio_info (1=1:1) |
947 |
|
|
|
#ifdef BFRAMES |
|
|
if (pParam->max_bframes > 0) { |
|
|
dprintf("low_delay=1"); |
|
948 |
BitstreamPutBit(bs, 1); // vol_control_parameters |
BitstreamPutBit(bs, 1); // vol_control_parameters |
949 |
BitstreamPutBits(bs, 1, 2); // chroma_format 1="4:2:0" |
BitstreamPutBits(bs, 1, 2); // chroma_format 1="4:2:0" |
950 |
|
|
951 |
|
if (pParam->max_bframes > 0) { |
952 |
BitstreamPutBit(bs, 0); // low_delay |
BitstreamPutBit(bs, 0); // low_delay |
|
BitstreamPutBit(bs, 0); // vbv_parameters (0=not given) |
|
953 |
} else |
} else |
|
#endif |
|
954 |
{ |
{ |
955 |
BitstreamPutBits(bs, 0, 1); // vol_control_parameters (0=not given) |
BitstreamPutBit(bs, 1); // low_delay |
956 |
} |
} |
957 |
|
BitstreamPutBit(bs, 0); // vbv_parameters (0=not given) |
958 |
|
|
959 |
BitstreamPutBits(bs, 0, 2); // video_object_layer_shape (0=rectangular) |
BitstreamPutBits(bs, 0, 2); // video_object_layer_shape (0=rectangular) |
960 |
|
|
961 |
WRITE_MARKER(); |
WRITE_MARKER(); |
962 |
|
|
963 |
/* time_increment_resolution; ignored by current decore versions |
/* time_inc_resolution; ignored by current decore versions |
964 |
eg. 2fps res=2 inc=1 |
eg. 2fps res=2 inc=1 |
965 |
25fps res=25 inc=1 |
25fps res=25 inc=1 |
966 |
29.97fps res=30000 inc=1001 |
29.97fps res=30000 inc=1001 |
967 |
*/ |
*/ |
|
#ifdef BFRAMES |
|
968 |
BitstreamPutBits(bs, pParam->fbase, 16); |
BitstreamPutBits(bs, pParam->fbase, 16); |
|
#else |
|
|
BitstreamPutBits(bs, 2, 16); |
|
|
#endif |
|
969 |
|
|
970 |
WRITE_MARKER(); |
WRITE_MARKER(); |
971 |
|
|
972 |
// fixed_vop_rate |
BitstreamPutBit(bs, 1); // fixed_vop_rate = 1 |
973 |
BitstreamPutBit(bs, 0); |
BitstreamPutBits(bs, pParam->fincr, log2bin(pParam->fbase)); // fixed_vop_time_increment |
|
|
|
|
// fixed_time_increment: value=nth_of_sec, nbits = log2(resolution) |
|
|
// BitstreamPutBits(bs, 0, 15); |
|
974 |
|
|
975 |
WRITE_MARKER(); |
WRITE_MARKER(); |
976 |
BitstreamPutBits(bs, pParam->width, 13); // width |
BitstreamPutBits(bs, pParam->width, 13); // width |
980 |
|
|
981 |
BitstreamPutBit(bs, frame->global_flags & XVID_INTERLACING); // interlace |
BitstreamPutBit(bs, frame->global_flags & XVID_INTERLACING); // interlace |
982 |
BitstreamPutBit(bs, 1); // obmc_disable (overlapped block motion compensation) |
BitstreamPutBit(bs, 1); // obmc_disable (overlapped block motion compensation) |
983 |
BitstreamPutBit(bs, 0); // sprite_enable |
|
984 |
BitstreamPutBit(bs, 0); // not_in_bit |
if (vol_ver_id != 1) |
985 |
|
{ if (frame->global_flags & XVID_GMC) |
986 |
|
{ BitstreamPutBits(bs, 2, 2); // sprite_enable=='GMC' |
987 |
|
BitstreamPutBits(bs, 2, 6); // no_of_sprite_warping_points |
988 |
|
BitstreamPutBits(bs, 3, 2); // sprite_warping_accuracy 0==1/2, 1=1/4, 2=1/8, 3=1/16 |
989 |
|
BitstreamPutBit(bs, 0); // sprite_brightness_change (not supported) |
990 |
|
|
991 |
|
/* currently we use no_of_sprite_warping_points==2, sprite_warping_accuracy==3 |
992 |
|
for DivX5 compatability */ |
993 |
|
|
994 |
|
} else |
995 |
|
BitstreamPutBits(bs, 0, 2); // sprite_enable==off |
996 |
|
} |
997 |
|
else |
998 |
|
BitstreamPutBit(bs, 0); // sprite_enable==off |
999 |
|
|
1000 |
|
BitstreamPutBit(bs, 0); // not_8_bit |
1001 |
|
|
1002 |
// quant_type 0=h.263 1=mpeg4(quantizer tables) |
// quant_type 0=h.263 1=mpeg4(quantizer tables) |
1003 |
BitstreamPutBit(bs, pParam->m_quant_type); |
BitstreamPutBit(bs, pParam->m_quant_type); |
1015 |
|
|
1016 |
} |
} |
1017 |
|
|
1018 |
|
if (vol_ver_id != 1) { |
1019 |
|
if (pParam->m_quarterpel) |
1020 |
|
BitstreamPutBit(bs, 1); // quarterpel |
1021 |
|
else |
1022 |
|
BitstreamPutBit(bs, 0); // no quarterpel |
1023 |
|
} |
1024 |
|
|
1025 |
BitstreamPutBit(bs, 1); // complexity_estimation_disable |
BitstreamPutBit(bs, 1); // complexity_estimation_disable |
1026 |
BitstreamPutBit(bs, 1); // resync_marker_disable |
BitstreamPutBit(bs, 1); // resync_marker_disable |
1027 |
BitstreamPutBit(bs, 0); // data_partitioned |
BitstreamPutBit(bs, 0); // data_partitioned |
1028 |
|
|
1029 |
|
if (vol_ver_id != 1) |
1030 |
|
{ |
1031 |
|
BitstreamPutBit(bs, 0); // newpred_enable |
1032 |
|
BitstreamPutBit(bs, 0); // reduced_resolution_vop_enabled |
1033 |
|
} |
1034 |
|
|
1035 |
BitstreamPutBit(bs, 0); // scalability |
BitstreamPutBit(bs, 0); // scalability |
1036 |
|
|
1037 |
} |
} |
1038 |
|
|
1039 |
|
|
1040 |
/* |
/* |
1041 |
write vop header |
write vop header |
|
|
|
|
NOTE: doesnt handle bother with time_base & time_inc |
|
|
time_base = n seconds since last resync (eg. last iframe) |
|
|
time_inc = nth of a second since last resync |
|
|
(decoder uses these values to determine precise time since last resync) |
|
1042 |
*/ |
*/ |
1043 |
void |
void |
1044 |
BitstreamWriteVopHeader(Bitstream * const bs, |
BitstreamWriteVopHeader(Bitstream * const bs, |
1045 |
const MBParam * pParam, |
const MBParam * pParam, |
1046 |
const FRAMEINFO * frame) |
const FRAMEINFO * const frame, |
1047 |
|
int vop_coded) |
1048 |
{ |
{ |
|
#ifdef BFRAMES |
|
1049 |
uint32_t i; |
uint32_t i; |
1050 |
#endif |
|
1051 |
BitstreamPad(bs); |
BitstreamPad(bs); |
1052 |
BitstreamPutBits(bs, VOP_START_CODE, 32); |
BitstreamPutBits(bs, VOP_START_CODE, 32); |
1053 |
|
|
1054 |
BitstreamPutBits(bs, frame->coding_type, 2); |
BitstreamPutBits(bs, frame->coding_type, 2); |
1055 |
|
DPRINTF(DPRINTF_HEADER, "coding_type = %i", frame->coding_type); |
1056 |
|
|
|
// time_base = 0 write n x PutBit(1), PutBit(0) |
|
|
#ifdef BFRAMES |
|
1057 |
for (i = 0; i < frame->seconds; i++) { |
for (i = 0; i < frame->seconds; i++) { |
1058 |
BitstreamPutBit(bs, 1); |
BitstreamPutBit(bs, 1); |
1059 |
} |
} |
1060 |
BitstreamPutBit(bs, 0); |
BitstreamPutBit(bs, 0); |
|
#else |
|
|
BitstreamPutBits(bs, 0, 1); |
|
|
#endif |
|
1061 |
|
|
1062 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1063 |
|
|
1064 |
// time_increment: value=nth_of_sec, nbits = log2(resolution) |
// time_increment: value=nth_of_sec, nbits = log2(resolution) |
1065 |
#ifdef BFRAMES |
|
1066 |
BitstreamPutBits(bs, frame->ticks, log2bin(pParam->fbase)); |
BitstreamPutBits(bs, frame->ticks, log2bin(pParam->fbase)); |
1067 |
dprintf("[%i:%i] %c\n", frame->seconds, frame->ticks, |
/*DPRINTF("[%i:%i] %c", frame->seconds, frame->ticks, |
1068 |
frame->coding_type == I_VOP ? 'I' : frame->coding_type == |
frame->coding_type == I_VOP ? 'I' : frame->coding_type == |
1069 |
P_VOP ? 'P' : 'B'); |
P_VOP ? 'P' : 'B');*/ |
|
#else |
|
|
BitstreamPutBits(bs, 1, 1); |
|
|
#endif |
|
1070 |
|
|
1071 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1072 |
|
|
1073 |
|
if (!vop_coded) { |
1074 |
|
BitstreamPutBits(bs, 0, 1); |
1075 |
|
return; |
1076 |
|
} |
1077 |
|
|
1078 |
BitstreamPutBits(bs, 1, 1); // vop_coded |
BitstreamPutBits(bs, 1, 1); // vop_coded |
1079 |
|
|
1080 |
if (frame->coding_type == P_VOP) |
if ( (frame->coding_type == P_VOP) || (frame->coding_type == S_VOP) ) |
1081 |
BitstreamPutBits(bs, frame->rounding_type, 1); |
BitstreamPutBits(bs, frame->rounding_type, 1); |
1082 |
|
|
1083 |
BitstreamPutBits(bs, 0, 3); // intra_dc_vlc_threshold |
BitstreamPutBits(bs, 0, 3); // intra_dc_vlc_threshold |
1084 |
|
|
1085 |
if (frame->global_flags & XVID_INTERLACING) { |
if (frame->global_flags & XVID_INTERLACING) { |
1086 |
BitstreamPutBit(bs, 1); // top field first |
BitstreamPutBit(bs, (frame->global_flags & XVID_TOPFIELDFIRST)); |
1087 |
BitstreamPutBit(bs, 0); // alternate vertical scan |
BitstreamPutBit(bs, (frame->global_flags & XVID_ALTERNATESCAN)); |
1088 |
|
} |
1089 |
|
|
1090 |
|
if (frame->coding_type == S_VOP) { |
1091 |
|
if (1) { // no_of_sprite_warping_points>=1 |
1092 |
|
if (pParam->m_quarterpel) |
1093 |
|
bs_put_spritetrajectory(bs, frame->GMC_MV.x/2 ); // du[0] |
1094 |
|
else |
1095 |
|
bs_put_spritetrajectory(bs, frame->GMC_MV.x ); // du[0] |
1096 |
|
WRITE_MARKER(); |
1097 |
|
|
1098 |
|
if (pParam->m_quarterpel) |
1099 |
|
bs_put_spritetrajectory(bs, frame->GMC_MV.y/2 ); // dv[0] |
1100 |
|
else |
1101 |
|
bs_put_spritetrajectory(bs, frame->GMC_MV.y ); // dv[0] |
1102 |
|
WRITE_MARKER(); |
1103 |
|
|
1104 |
|
|
1105 |
|
if (pParam->m_quarterpel) |
1106 |
|
{ |
1107 |
|
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i) *QPEL*", 0, frame->GMC_MV.x/2, frame->GMC_MV.y/2); |
1108 |
|
} |
1109 |
|
else |
1110 |
|
{ |
1111 |
|
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i)", 0, frame->GMC_MV.x, frame->GMC_MV.y); |
1112 |
|
} |
1113 |
|
|
1114 |
|
} |
1115 |
|
/* GMC is halfpel in bitstream, even though GMC_MV was pseudo-qpel (2*halfpel) */ |
1116 |
|
|
1117 |
|
if (2) { // no_of_sprite_warping_points>=2 (for DivX5 compat) |
1118 |
|
bs_put_spritetrajectory(bs, 0 ); |
1119 |
|
WRITE_MARKER(); |
1120 |
|
bs_put_spritetrajectory(bs, 0 ); |
1121 |
|
WRITE_MARKER(); |
1122 |
|
} |
1123 |
|
// no support for brightness_change! |
1124 |
} |
} |
1125 |
|
|
1126 |
BitstreamPutBits(bs, frame->quant, 5); // quantizer |
BitstreamPutBits(bs, frame->quant, 5); // quantizer |
1132 |
BitstreamPutBits(bs, frame->bcode, 3); // backward_fixed_code |
BitstreamPutBits(bs, frame->bcode, 3); // backward_fixed_code |
1133 |
|
|
1134 |
} |
} |
1135 |
|
|
1136 |
|
void |
1137 |
|
BitstreamWriteUserData(Bitstream * const bs, |
1138 |
|
uint8_t * data, |
1139 |
|
const int length) |
1140 |
|
{ |
1141 |
|
int i; |
1142 |
|
|
1143 |
|
BitstreamPad(bs); |
1144 |
|
BitstreamPutBits(bs, USERDATA_START_CODE, 32); |
1145 |
|
|
1146 |
|
for (i = 0; i < length; i++) { |
1147 |
|
BitstreamPutBits(bs, data[i], 8); |
1148 |
|
} |
1149 |
|
|
1150 |
|
} |