41 |
* * |
* * |
42 |
* Revision history: * |
* Revision history: * |
43 |
* * |
* * |
44 |
* 22.05.2002 bs_put_matrix fix |
* 05.01.2003 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 |
* 20.05.2002 added BitstreamWriteUserData * |
* 20.05.2002 added BitstreamWriteUserData * |
51 |
* 19.06.2002 Fix a little bug in use custom quant matrix * |
* 19.06.2002 Fix a little bug in use custom quant matrix * |
52 |
* MinChen <chenm001@163.com> * |
* MinChen <chenm001@163.com> * |
62 |
* 30.02.2002 intra_dc_threshold support * |
* 30.02.2002 intra_dc_threshold support * |
63 |
* 04.12.2001 support for additional headers * |
* 04.12.2001 support for additional headers * |
64 |
* 16.12.2001 inital version * |
* 16.12.2001 inital version * |
65 |
* |
* * |
66 |
******************************************************************************/ |
******************************************************************************/ |
67 |
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68 |
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69 |
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#include <string.h> |
70 |
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#include <stdio.h> |
71 |
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|
72 |
#include "bitstream.h" |
#include "bitstream.h" |
73 |
#include "zigzag.h" |
#include "zigzag.h" |
74 |
#include "../quant/quant_matrix.h" |
#include "../quant/quant_matrix.h" |
75 |
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#include "mbcoding.h" |
76 |
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77 |
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78 |
static uint32_t __inline |
static uint32_t __inline |
79 |
log2bin(uint32_t value) |
log2bin(uint32_t value) |
80 |
{ |
{ |
81 |
/* Changed by Chenm001 */ |
/* Changed by Chenm001 */ |
82 |
#ifndef WIN32 |
#if !defined(_MSC_VER) |
83 |
int n = 0; |
int n = 0; |
84 |
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|
85 |
while (value) { |
while (value) { |
128 |
} |
} |
129 |
} |
} |
130 |
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131 |
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132 |
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133 |
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// for PVOP addbits == fcode - 1 |
134 |
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// for BVOP addbits == max(fcode,bcode) - 1 |
135 |
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// returns mbpos |
136 |
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int |
137 |
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read_video_packet_header(Bitstream *bs, |
138 |
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DECODER * dec, |
139 |
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const int addbits, |
140 |
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int * quant, |
141 |
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int * fcode_forward, |
142 |
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int * fcode_backward, |
143 |
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int * intra_dc_threshold) |
144 |
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{ |
145 |
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int startcode_bits = NUMBITS_VP_RESYNC_MARKER + addbits; |
146 |
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int mbnum_bits = log2bin(dec->mb_width * dec->mb_height - 1); |
147 |
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int mbnum; |
148 |
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int hec = 0; |
149 |
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150 |
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BitstreamSkip(bs, BitstreamNumBitsToByteAlign(bs)); |
151 |
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BitstreamSkip(bs, startcode_bits); |
152 |
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153 |
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DPRINTF(DPRINTF_STARTCODE, "<video_packet_header>"); |
154 |
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155 |
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if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
156 |
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{ |
157 |
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hec = BitstreamGetBit(bs); /* header_extension_code */ |
158 |
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if (hec && !(dec->sprite_enable == SPRITE_STATIC /* && current_coding_type = I_VOP */)) |
159 |
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{ |
160 |
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BitstreamSkip(bs, 13); /* vop_width */ |
161 |
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READ_MARKER(); |
162 |
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BitstreamSkip(bs, 13); /* vop_height */ |
163 |
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READ_MARKER(); |
164 |
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BitstreamSkip(bs, 13); /* vop_horizontal_mc_spatial_ref */ |
165 |
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READ_MARKER(); |
166 |
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BitstreamSkip(bs, 13); /* vop_vertical_mc_spatial_ref */ |
167 |
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READ_MARKER(); |
168 |
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} |
169 |
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} |
170 |
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171 |
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mbnum = BitstreamGetBits(bs, mbnum_bits); /* macroblock_number */ |
172 |
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DPRINTF(DPRINTF_HEADER, "mbnum %i", mbnum); |
173 |
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174 |
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if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) |
175 |
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{ |
176 |
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*quant = BitstreamGetBits(bs, dec->quant_bits); /* quant_scale */ |
177 |
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DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
178 |
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} |
179 |
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180 |
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if (dec->shape == VIDOBJLAY_SHAPE_RECTANGULAR) |
181 |
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hec = BitstreamGetBit(bs); /* header_extension_code */ |
182 |
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183 |
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184 |
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DPRINTF(DPRINTF_HEADER, "header_extension_code %i", hec); |
185 |
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if (hec) |
186 |
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{ |
187 |
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int time_base; |
188 |
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int time_increment; |
189 |
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int coding_type; |
190 |
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191 |
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for (time_base=0; BitstreamGetBit(bs)!=0; time_base++); /* modulo_time_base */ |
192 |
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READ_MARKER(); |
193 |
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if (dec->time_inc_bits) |
194 |
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time_increment = (BitstreamGetBits(bs, dec->time_inc_bits)); /* vop_time_increment */ |
195 |
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READ_MARKER(); |
196 |
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DPRINTF(DPRINTF_HEADER,"time %i:%i", time_base, time_increment); |
197 |
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198 |
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coding_type = BitstreamGetBits(bs, 2); |
199 |
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DPRINTF(DPRINTF_HEADER,"coding_type %i", coding_type); |
200 |
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|
201 |
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if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
202 |
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{ |
203 |
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BitstreamSkip(bs, 1); /* change_conv_ratio_disable */ |
204 |
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if (coding_type != I_VOP) |
205 |
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BitstreamSkip(bs, 1); /* vop_shape_coding_type */ |
206 |
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} |
207 |
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208 |
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if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) |
209 |
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{ |
210 |
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*intra_dc_threshold = intra_dc_threshold_table[BitstreamGetBits(bs, 3)]; |
211 |
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212 |
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if (dec->sprite_enable == SPRITE_GMC && coding_type == S_VOP && |
213 |
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dec->sprite_warping_points > 0) |
214 |
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{ |
215 |
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// TODO: sprite trajectory |
216 |
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} |
217 |
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if (dec->reduced_resolution_enable && |
218 |
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dec->shape == VIDOBJLAY_SHAPE_RECTANGULAR && |
219 |
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(coding_type == P_VOP || coding_type == I_VOP)) |
220 |
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{ |
221 |
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BitstreamSkip(bs, 1); /* XXX: vop_reduced_resolution */ |
222 |
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} |
223 |
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224 |
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if (coding_type != I_VOP && fcode_forward) |
225 |
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{ |
226 |
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*fcode_forward = BitstreamGetBits(bs, 3); |
227 |
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DPRINTF(DPRINTF_HEADER,"fcode_forward %i", *fcode_forward); |
228 |
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} |
229 |
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230 |
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if (coding_type == B_VOP && fcode_backward) |
231 |
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{ |
232 |
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*fcode_backward = BitstreamGetBits(bs, 3); |
233 |
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DPRINTF(DPRINTF_HEADER,"fcode_backward %i", *fcode_backward); |
234 |
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} |
235 |
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} |
236 |
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237 |
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} |
238 |
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|
239 |
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if (dec->newpred_enable) |
240 |
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{ |
241 |
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int vop_id; |
242 |
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int vop_id_for_prediction; |
243 |
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|
244 |
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vop_id = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); |
245 |
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DPRINTF(DPRINTF_HEADER, "vop_id %i", vop_id); |
246 |
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if (BitstreamGetBit(bs)) /* vop_id_for_prediction_indication */ |
247 |
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{ |
248 |
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vop_id_for_prediction = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); |
249 |
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DPRINTF(DPRINTF_HEADER, "vop_id_for_prediction %i", vop_id_for_prediction); |
250 |
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} |
251 |
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READ_MARKER(); |
252 |
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} |
253 |
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254 |
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return mbnum; |
255 |
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} |
256 |
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257 |
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258 |
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259 |
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260 |
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/* vol estimation header */ |
261 |
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static void |
262 |
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read_vol_complexity_estimation_header(Bitstream * bs, DECODER * dec) |
263 |
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{ |
264 |
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ESTIMATION * e = &dec->estimation; |
265 |
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|
266 |
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e->method = BitstreamGetBits(bs, 2); /* estimation_method */ |
267 |
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DPRINTF(DPRINTF_HEADER,"+ complexity_estimation_header; method=%i", e->method); |
268 |
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269 |
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if (e->method == 0 || e->method == 1) |
270 |
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{ |
271 |
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if (!BitstreamGetBit(bs)) /* shape_complexity_estimation_disable */ |
272 |
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{ |
273 |
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e->opaque = BitstreamGetBit(bs); /* opaque */ |
274 |
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e->transparent = BitstreamGetBit(bs); /* transparent */ |
275 |
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e->intra_cae = BitstreamGetBit(bs); /* intra_cae */ |
276 |
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e->inter_cae = BitstreamGetBit(bs); /* inter_cae */ |
277 |
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e->no_update = BitstreamGetBit(bs); /* no_update */ |
278 |
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e->upsampling = BitstreamGetBit(bs); /* upsampling */ |
279 |
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} |
280 |
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281 |
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if (!BitstreamGetBit(bs)) /* texture_complexity_estimation_set_1_disable */ |
282 |
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{ |
283 |
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e->intra_blocks = BitstreamGetBit(bs); /* intra_blocks */ |
284 |
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e->inter_blocks = BitstreamGetBit(bs); /* inter_blocks */ |
285 |
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e->inter4v_blocks = BitstreamGetBit(bs); /* inter4v_blocks */ |
286 |
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e->not_coded_blocks = BitstreamGetBit(bs); /* not_coded_blocks */ |
287 |
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} |
288 |
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} |
289 |
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290 |
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READ_MARKER(); |
291 |
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292 |
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if (!BitstreamGetBit(bs)) /* texture_complexity_estimation_set_2_disable */ |
293 |
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{ |
294 |
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e->dct_coefs = BitstreamGetBit(bs); /* dct_coefs */ |
295 |
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e->dct_lines = BitstreamGetBit(bs); /* dct_lines */ |
296 |
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e->vlc_symbols = BitstreamGetBit(bs); /* vlc_symbols */ |
297 |
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e->vlc_bits = BitstreamGetBit(bs); /* vlc_bits */ |
298 |
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} |
299 |
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300 |
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if (!BitstreamGetBit(bs)) /* motion_compensation_complexity_disable */ |
301 |
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{ |
302 |
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e->apm = BitstreamGetBit(bs); /* apm */ |
303 |
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e->npm = BitstreamGetBit(bs); /* npm */ |
304 |
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e->interpolate_mc_q = BitstreamGetBit(bs); /* interpolate_mc_q */ |
305 |
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e->forw_back_mc_q = BitstreamGetBit(bs); /* forw_back_mc_q */ |
306 |
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e->halfpel2 = BitstreamGetBit(bs); /* halfpel2 */ |
307 |
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e->halfpel4 = BitstreamGetBit(bs); /* halfpel4 */ |
308 |
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} |
309 |
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310 |
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READ_MARKER(); |
311 |
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312 |
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if (e->method == 1) |
313 |
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{ |
314 |
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if (!BitstreamGetBit(bs)) /* version2_complexity_estimation_disable */ |
315 |
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{ |
316 |
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e->sadct = BitstreamGetBit(bs); /* sadct */ |
317 |
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e->quarterpel = BitstreamGetBit(bs); /* quarterpel */ |
318 |
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} |
319 |
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} |
320 |
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} |
321 |
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322 |
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323 |
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/* vop estimation header */ |
324 |
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static void |
325 |
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read_vop_complexity_estimation_header(Bitstream * bs, DECODER * dec, int coding_type) |
326 |
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{ |
327 |
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ESTIMATION * e = &dec->estimation; |
328 |
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|
329 |
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if (e->method == 0 || e->method == 1) |
330 |
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{ |
331 |
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if (coding_type == I_VOP) { |
332 |
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if (e->opaque) BitstreamSkip(bs, 8); /* dcecs_opaque */ |
333 |
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if (e->transparent) BitstreamSkip(bs, 8); /* */ |
334 |
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if (e->intra_cae) BitstreamSkip(bs, 8); /* */ |
335 |
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if (e->inter_cae) BitstreamSkip(bs, 8); /* */ |
336 |
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if (e->no_update) BitstreamSkip(bs, 8); /* */ |
337 |
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if (e->upsampling) BitstreamSkip(bs, 8); /* */ |
338 |
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if (e->intra_blocks) BitstreamSkip(bs, 8); /* */ |
339 |
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if (e->not_coded_blocks) BitstreamSkip(bs, 8); /* */ |
340 |
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if (e->dct_coefs) BitstreamSkip(bs, 8); /* */ |
341 |
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if (e->dct_lines) BitstreamSkip(bs, 8); /* */ |
342 |
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if (e->vlc_symbols) BitstreamSkip(bs, 8); /* */ |
343 |
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if (e->vlc_bits) BitstreamSkip(bs, 8); /* */ |
344 |
|
if (e->sadct) BitstreamSkip(bs, 8); /* */ |
345 |
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} |
346 |
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|
347 |
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if (coding_type == P_VOP) { |
348 |
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if (e->opaque) BitstreamSkip(bs, 8); /* */ |
349 |
|
if (e->transparent) BitstreamSkip(bs, 8); /* */ |
350 |
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if (e->intra_cae) BitstreamSkip(bs, 8); /* */ |
351 |
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if (e->inter_cae) BitstreamSkip(bs, 8); /* */ |
352 |
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if (e->no_update) BitstreamSkip(bs, 8); /* */ |
353 |
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if (e->upsampling) BitstreamSkip(bs, 8); /* */ |
354 |
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if (e->intra_blocks) BitstreamSkip(bs, 8); /* */ |
355 |
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if (e->not_coded_blocks) BitstreamSkip(bs, 8); /* */ |
356 |
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if (e->dct_coefs) BitstreamSkip(bs, 8); /* */ |
357 |
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if (e->dct_lines) BitstreamSkip(bs, 8); /* */ |
358 |
|
if (e->vlc_symbols) BitstreamSkip(bs, 8); /* */ |
359 |
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if (e->vlc_bits) BitstreamSkip(bs, 8); /* */ |
360 |
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if (e->inter_blocks) BitstreamSkip(bs, 8); /* */ |
361 |
|
if (e->inter4v_blocks) BitstreamSkip(bs, 8); /* */ |
362 |
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if (e->apm) BitstreamSkip(bs, 8); /* */ |
363 |
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if (e->npm) BitstreamSkip(bs, 8); /* */ |
364 |
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if (e->forw_back_mc_q) BitstreamSkip(bs, 8); /* */ |
365 |
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if (e->halfpel2) BitstreamSkip(bs, 8); /* */ |
366 |
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if (e->halfpel4) BitstreamSkip(bs, 8); /* */ |
367 |
|
if (e->sadct) BitstreamSkip(bs, 8); /* */ |
368 |
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if (e->quarterpel) BitstreamSkip(bs, 8); /* */ |
369 |
|
} |
370 |
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if (coding_type == B_VOP) { |
371 |
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if (e->opaque) BitstreamSkip(bs, 8); /* */ |
372 |
|
if (e->transparent) BitstreamSkip(bs, 8); /* */ |
373 |
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if (e->intra_cae) BitstreamSkip(bs, 8); /* */ |
374 |
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if (e->inter_cae) BitstreamSkip(bs, 8); /* */ |
375 |
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if (e->no_update) BitstreamSkip(bs, 8); /* */ |
376 |
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if (e->upsampling) BitstreamSkip(bs, 8); /* */ |
377 |
|
if (e->intra_blocks) BitstreamSkip(bs, 8); /* */ |
378 |
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if (e->not_coded_blocks) BitstreamSkip(bs, 8); /* */ |
379 |
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if (e->dct_coefs) BitstreamSkip(bs, 8); /* */ |
380 |
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if (e->dct_lines) BitstreamSkip(bs, 8); /* */ |
381 |
|
if (e->vlc_symbols) BitstreamSkip(bs, 8); /* */ |
382 |
|
if (e->vlc_bits) BitstreamSkip(bs, 8); /* */ |
383 |
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if (e->inter_blocks) BitstreamSkip(bs, 8); /* */ |
384 |
|
if (e->inter4v_blocks) BitstreamSkip(bs, 8); /* */ |
385 |
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if (e->apm) BitstreamSkip(bs, 8); /* */ |
386 |
|
if (e->npm) BitstreamSkip(bs, 8); /* */ |
387 |
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if (e->forw_back_mc_q) BitstreamSkip(bs, 8); /* */ |
388 |
|
if (e->halfpel2) BitstreamSkip(bs, 8); /* */ |
389 |
|
if (e->halfpel4) BitstreamSkip(bs, 8); /* */ |
390 |
|
if (e->interpolate_mc_q) BitstreamSkip(bs, 8); /* */ |
391 |
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if (e->sadct) BitstreamSkip(bs, 8); /* */ |
392 |
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if (e->quarterpel) BitstreamSkip(bs, 8); /* */ |
393 |
|
} |
394 |
|
|
395 |
|
if (coding_type == S_VOP && dec->sprite_enable == SPRITE_STATIC) { |
396 |
|
if (e->intra_blocks) BitstreamSkip(bs, 8); /* */ |
397 |
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if (e->not_coded_blocks) BitstreamSkip(bs, 8); /* */ |
398 |
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if (e->dct_coefs) BitstreamSkip(bs, 8); /* */ |
399 |
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if (e->dct_lines) BitstreamSkip(bs, 8); /* */ |
400 |
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if (e->vlc_symbols) BitstreamSkip(bs, 8); /* */ |
401 |
|
if (e->vlc_bits) BitstreamSkip(bs, 8); /* */ |
402 |
|
if (e->inter_blocks) BitstreamSkip(bs, 8); /* */ |
403 |
|
if (e->inter4v_blocks) BitstreamSkip(bs, 8); /* */ |
404 |
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if (e->apm) BitstreamSkip(bs, 8); /* */ |
405 |
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if (e->npm) BitstreamSkip(bs, 8); /* */ |
406 |
|
if (e->forw_back_mc_q) BitstreamSkip(bs, 8); /* */ |
407 |
|
if (e->halfpel2) BitstreamSkip(bs, 8); /* */ |
408 |
|
if (e->halfpel4) BitstreamSkip(bs, 8); /* */ |
409 |
|
if (e->interpolate_mc_q) BitstreamSkip(bs, 8); /* */ |
410 |
|
} |
411 |
|
} |
412 |
|
} |
413 |
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|
414 |
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415 |
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416 |
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|
417 |
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|
418 |
/* |
/* |
419 |
decode headers |
decode headers |
420 |
returns coding_type, or -1 if error |
returns coding_type, or -1 if error |
421 |
*/ |
*/ |
422 |
|
|
423 |
|
#define VIDOBJ_START_CODE_MASK 0x0000001f |
424 |
|
#define VIDOBJLAY_START_CODE_MASK 0x0000000f |
425 |
|
|
426 |
int |
int |
427 |
BitstreamReadHeaders(Bitstream * bs, |
BitstreamReadHeaders(Bitstream * bs, |
428 |
DECODER * dec, |
DECODER * dec, |
429 |
uint32_t * rounding, |
uint32_t * rounding, |
430 |
|
uint32_t * reduced_resolution, |
431 |
uint32_t * quant, |
uint32_t * quant, |
432 |
uint32_t * fcode_forward, |
uint32_t * fcode_forward, |
433 |
uint32_t * fcode_backward, |
uint32_t * fcode_backward, |
434 |
uint32_t * intra_dc_threshold) |
uint32_t * intra_dc_threshold, |
435 |
|
WARPPOINTS *gmc_warp) |
436 |
{ |
{ |
437 |
uint32_t vol_ver_id; |
uint32_t vol_ver_id; |
|
static uint32_t time_increment_resolution; |
|
438 |
uint32_t coding_type; |
uint32_t coding_type; |
439 |
uint32_t start_code; |
uint32_t start_code; |
440 |
uint32_t time_incr = 0; |
uint32_t time_incr = 0; |
441 |
int32_t time_increment; |
int32_t time_increment = 0; |
442 |
|
int resize = 0; |
443 |
|
|
444 |
do { |
do { |
445 |
|
|
446 |
BitstreamByteAlign(bs); |
BitstreamByteAlign(bs); |
447 |
start_code = BitstreamShowBits(bs, 32); |
start_code = BitstreamShowBits(bs, 32); |
448 |
|
|
449 |
if (start_code == VISOBJSEQ_START_CODE) { |
if (start_code == VISOBJSEQ_START_CODE) { |
450 |
// DPRINTF("visual_object_sequence"); |
|
451 |
|
int profile; |
452 |
|
|
453 |
|
DPRINTF(DPRINTF_STARTCODE, "<visual_object_sequence>"); |
454 |
|
|
455 |
BitstreamSkip(bs, 32); // visual_object_sequence_start_code |
BitstreamSkip(bs, 32); // visual_object_sequence_start_code |
456 |
BitstreamSkip(bs, 8); // profile_and_level_indication |
profile = BitstreamGetBits(bs, 8); // profile_and_level_indication |
457 |
|
|
458 |
|
DPRINTF(DPRINTF_HEADER, "profile_and_level_indication %i", profile); |
459 |
|
|
460 |
} else if (start_code == VISOBJSEQ_STOP_CODE) { |
} else if (start_code == VISOBJSEQ_STOP_CODE) { |
461 |
|
|
462 |
BitstreamSkip(bs, 32); // visual_object_sequence_stop_code |
BitstreamSkip(bs, 32); // visual_object_sequence_stop_code |
463 |
|
|
464 |
|
DPRINTF(DPRINTF_STARTCODE, "</visual_object_sequence>"); |
465 |
|
|
466 |
} else if (start_code == VISOBJ_START_CODE) { |
} else if (start_code == VISOBJ_START_CODE) { |
467 |
//DPRINTF("visual_object"); |
int visobj_ver_id; |
468 |
|
|
469 |
|
DPRINTF(DPRINTF_STARTCODE, "<visual_object>"); |
470 |
|
|
471 |
BitstreamSkip(bs, 32); // visual_object_start_code |
BitstreamSkip(bs, 32); // visual_object_start_code |
472 |
if (BitstreamGetBit(bs)) // is_visual_object_identified |
if (BitstreamGetBit(bs)) // is_visual_object_identified |
473 |
{ |
{ |
474 |
vol_ver_id = BitstreamGetBits(bs, 4); // visual_object_ver_id |
visobj_ver_id = BitstreamGetBits(bs, 4); // visual_object_ver_id |
475 |
|
DPRINTF(DPRINTF_HEADER,"visobj_ver_id %i", visobj_ver_id); |
476 |
BitstreamSkip(bs, 3); // visual_object_priority |
BitstreamSkip(bs, 3); // visual_object_priority |
477 |
} else { |
} else { |
478 |
vol_ver_id = 1; |
visobj_ver_id = 1; |
479 |
} |
} |
480 |
|
|
481 |
if (BitstreamShowBits(bs, 4) != VISOBJ_TYPE_VIDEO) // visual_object_type |
if (BitstreamShowBits(bs, 4) != VISOBJ_TYPE_VIDEO) // visual_object_type |
482 |
{ |
{ |
483 |
//DPRINTF("visual_object_type != video"); |
DPRINTF(DPRINTF_ERROR, "visual_object_type != video"); |
484 |
return -1; |
return -1; |
485 |
} |
} |
486 |
BitstreamSkip(bs, 4); |
BitstreamSkip(bs, 4); |
489 |
|
|
490 |
if (BitstreamGetBit(bs)) // video_signal_type |
if (BitstreamGetBit(bs)) // video_signal_type |
491 |
{ |
{ |
492 |
//DPRINTF("+ video_signal_type"); |
DPRINTF(DPRINTF_HEADER,"+ video_signal_type"); |
493 |
BitstreamSkip(bs, 3); // video_format |
BitstreamSkip(bs, 3); // video_format |
494 |
BitstreamSkip(bs, 1); // video_range |
BitstreamSkip(bs, 1); // video_range |
495 |
if (BitstreamGetBit(bs)) // color_description |
if (BitstreamGetBit(bs)) // color_description |
496 |
{ |
{ |
497 |
//DPRINTF("+ color_description"); |
DPRINTF(DPRINTF_HEADER,"+ color_description"); |
498 |
BitstreamSkip(bs, 8); // color_primaries |
BitstreamSkip(bs, 8); // color_primaries |
499 |
BitstreamSkip(bs, 8); // transfer_characteristics |
BitstreamSkip(bs, 8); // transfer_characteristics |
500 |
BitstreamSkip(bs, 8); // matrix_coefficients |
BitstreamSkip(bs, 8); // matrix_coefficients |
501 |
} |
} |
502 |
} |
} |
503 |
} else if ((start_code & ~0x1f) == VIDOBJ_START_CODE) { |
} else if ((start_code & ~VIDOBJ_START_CODE_MASK) == VIDOBJ_START_CODE) { |
504 |
|
|
505 |
|
DPRINTF(DPRINTF_STARTCODE, "<video_object>"); |
506 |
|
DPRINTF(DPRINTF_HEADER, "vo id %i", start_code & VIDOBJ_START_CODE_MASK); |
507 |
|
|
508 |
BitstreamSkip(bs, 32); // video_object_start_code |
BitstreamSkip(bs, 32); // video_object_start_code |
509 |
} else if ((start_code & ~0xf) == VIDOBJLAY_START_CODE) { |
|
510 |
//DPRINTF("video_object_layer"); |
} else if ((start_code & ~VIDOBJLAY_START_CODE_MASK) == VIDOBJLAY_START_CODE) { |
511 |
|
|
512 |
|
DPRINTF(DPRINTF_STARTCODE, "<video_object_layer>"); |
513 |
|
DPRINTF(DPRINTF_HEADER, "vol id %i", start_code & VIDOBJLAY_START_CODE_MASK); |
514 |
|
|
515 |
BitstreamSkip(bs, 32); // video_object_layer_start_code |
BitstreamSkip(bs, 32); // video_object_layer_start_code |
516 |
|
|
517 |
BitstreamSkip(bs, 1); // random_accessible_vol |
BitstreamSkip(bs, 1); // random_accessible_vol |
518 |
|
|
519 |
// video_object_type_indication |
// video_object_type_indication |
520 |
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 && |
521 |
|
BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_CORE && |
522 |
|
BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_MAIN && |
523 |
|
BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_ACE && |
524 |
|
BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_ART_SIMPLE && |
525 |
|
BitstreamShowBits(bs, 8) != 0) // BUGGY DIVX |
526 |
{ |
{ |
527 |
//DPRINTF("video_object_type_indication %i not supported ", |
DPRINTF(DPRINTF_ERROR,"video_object_type_indication %i not supported ", |
528 |
// BitstreamShowBits(bs, 8)); |
BitstreamShowBits(bs, 8)); |
529 |
return -1; |
return -1; |
530 |
} |
} |
531 |
BitstreamSkip(bs, 8); |
BitstreamSkip(bs, 8); |
533 |
|
|
534 |
if (BitstreamGetBit(bs)) // is_object_layer_identifier |
if (BitstreamGetBit(bs)) // is_object_layer_identifier |
535 |
{ |
{ |
536 |
//DPRINTF("+ is_object_layer_identifier"); |
DPRINTF(DPRINTF_HEADER, "+ is_object_layer_identifier"); |
537 |
vol_ver_id = BitstreamGetBits(bs, 4); // video_object_layer_verid |
vol_ver_id = BitstreamGetBits(bs, 4); // video_object_layer_verid |
538 |
|
DPRINTF(DPRINTF_HEADER,"ver_id %i", vol_ver_id); |
539 |
BitstreamSkip(bs, 3); // video_object_layer_priority |
BitstreamSkip(bs, 3); // video_object_layer_priority |
540 |
} else { |
} else { |
541 |
vol_ver_id = 1; |
vol_ver_id = 1; |
542 |
} |
} |
|
//DPRINTF("vol_ver_id %i", vol_ver_id); |
|
543 |
|
|
544 |
if (BitstreamGetBits(bs, 4) == VIDOBJLAY_AR_EXTPAR) // aspect_ratio_info |
dec->aspect_ratio = BitstreamGetBits(bs, 4); |
545 |
|
|
546 |
|
if (dec->aspect_ratio == VIDOBJLAY_AR_EXTPAR) // aspect_ratio_info |
547 |
{ |
{ |
548 |
//DPRINTF("+ aspect_ratio_info"); |
DPRINTF(DPRINTF_HEADER, "+ aspect_ratio_info"); |
549 |
BitstreamSkip(bs, 8); // par_width |
dec->par_width = BitstreamGetBits(bs, 8); // par_width |
550 |
BitstreamSkip(bs, 8); // par_height |
dec->par_height = BitstreamGetBits(bs, 8); // par_height |
551 |
} |
} |
552 |
|
|
553 |
if (BitstreamGetBit(bs)) // vol_control_parameters |
if (BitstreamGetBit(bs)) // vol_control_parameters |
554 |
{ |
{ |
555 |
//DPRINTF("+ vol_control_parameters"); |
DPRINTF(DPRINTF_HEADER, "+ vol_control_parameters"); |
556 |
BitstreamSkip(bs, 2); // chroma_format |
BitstreamSkip(bs, 2); // chroma_format |
557 |
dec->low_delay = BitstreamGetBit(bs); // low_delay |
dec->low_delay = BitstreamGetBit(bs); // low_delay |
558 |
|
DPRINTF(DPRINTF_HEADER, "low_delay %i", dec->low_delay); |
559 |
if (BitstreamGetBit(bs)) // vbv_parameters |
if (BitstreamGetBit(bs)) // vbv_parameters |
560 |
{ |
{ |
561 |
//DPRINTF("+ vbv_parameters"); |
unsigned int bitrate; |
562 |
BitstreamSkip(bs, 15); // first_half_bitrate |
unsigned int buffer_size; |
563 |
|
unsigned int occupancy; |
564 |
|
|
565 |
|
DPRINTF(DPRINTF_HEADER,"+ vbv_parameters"); |
566 |
|
|
567 |
|
bitrate = BitstreamGetBits(bs,15) << 15; // first_half_bit_rate |
568 |
READ_MARKER(); |
READ_MARKER(); |
569 |
BitstreamSkip(bs, 15); // latter_half_bitrate |
bitrate |= BitstreamGetBits(bs,15); // latter_half_bit_rate |
570 |
READ_MARKER(); |
READ_MARKER(); |
571 |
BitstreamSkip(bs, 15); // first_half_vbv_buffer_size |
|
572 |
|
buffer_size = BitstreamGetBits(bs, 15) << 3; // first_half_vbv_buffer_size |
573 |
READ_MARKER(); |
READ_MARKER(); |
574 |
BitstreamSkip(bs, 3); // latter_half_vbv_buffer_size |
buffer_size |= BitstreamGetBits(bs, 3); // latter_half_vbv_buffer_size |
575 |
BitstreamSkip(bs, 11); // first_half_vbv_occupancy |
|
576 |
|
occupancy = BitstreamGetBits(bs, 11) << 15; // first_half_vbv_occupancy |
577 |
READ_MARKER(); |
READ_MARKER(); |
578 |
BitstreamSkip(bs, 15); // latter_half_vbv_occupancy |
occupancy |= BitstreamGetBits(bs, 15); // latter_half_vbv_occupancy |
579 |
READ_MARKER(); |
READ_MARKER(); |
580 |
|
|
581 |
|
DPRINTF(DPRINTF_HEADER,"bitrate %d (unit=400 bps)", bitrate); |
582 |
|
DPRINTF(DPRINTF_HEADER,"buffer_size %d (unit=16384 bits)", buffer_size); |
583 |
|
DPRINTF(DPRINTF_HEADER,"occupancy %d (unit=64 bits)", occupancy); |
584 |
} |
} |
585 |
|
}else{ |
586 |
|
dec->low_delay = dec->low_delay_default; |
587 |
} |
} |
588 |
|
|
589 |
dec->shape = BitstreamGetBits(bs, 2); // video_object_layer_shape |
dec->shape = BitstreamGetBits(bs, 2); // video_object_layer_shape |
590 |
//DPRINTF("shape %i", dec->shape); |
|
591 |
|
DPRINTF(DPRINTF_HEADER, "shape %i", dec->shape); |
592 |
|
if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
593 |
|
{ |
594 |
|
DPRINTF(DPRINTF_ERROR,"non-rectangular shapes are not supported"); |
595 |
|
} |
596 |
|
|
597 |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE && vol_ver_id != 1) { |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE && vol_ver_id != 1) { |
598 |
BitstreamSkip(bs, 4); // video_object_layer_shape_extension |
BitstreamSkip(bs, 4); // video_object_layer_shape_extension |
601 |
READ_MARKER(); |
READ_MARKER(); |
602 |
|
|
603 |
// *************************** for decode B-frame time *********************** |
// *************************** for decode B-frame time *********************** |
604 |
time_increment_resolution = BitstreamGetBits(bs, 16); // vop_time_increment_resolution |
dec->time_inc_resolution = BitstreamGetBits(bs, 16); // vop_time_increment_resolution |
605 |
time_increment_resolution--; |
DPRINTF(DPRINTF_HEADER,"vop_time_increment_resolution %i", dec->time_inc_resolution); |
606 |
//DPRINTF("time_increment_resolution = %i",time_increment_resolution); |
|
607 |
if (time_increment_resolution > 0) { |
// dec->time_inc_resolution--; |
608 |
dec->time_inc_bits = log2bin(time_increment_resolution); |
|
609 |
|
if (dec->time_inc_resolution > 0) { |
610 |
|
dec->time_inc_bits = log2bin(dec->time_inc_resolution-1); |
611 |
} else { |
} else { |
612 |
// dec->time_inc_bits = 0; |
// dec->time_inc_bits = 0; |
|
|
|
613 |
// for "old" xvid compatibility, set time_inc_bits = 1 |
// for "old" xvid compatibility, set time_inc_bits = 1 |
614 |
dec->time_inc_bits = 1; |
dec->time_inc_bits = 1; |
615 |
} |
} |
618 |
|
|
619 |
if (BitstreamGetBit(bs)) // fixed_vop_rate |
if (BitstreamGetBit(bs)) // fixed_vop_rate |
620 |
{ |
{ |
621 |
|
DPRINTF(DPRINTF_HEADER, "+ fixed_vop_rate"); |
622 |
BitstreamSkip(bs, dec->time_inc_bits); // fixed_vop_time_increment |
BitstreamSkip(bs, dec->time_inc_bits); // fixed_vop_time_increment |
623 |
} |
} |
624 |
|
|
629 |
|
|
630 |
READ_MARKER(); |
READ_MARKER(); |
631 |
width = BitstreamGetBits(bs, 13); // video_object_layer_width |
width = BitstreamGetBits(bs, 13); // video_object_layer_width |
|
//DPRINTF("width %i", width); |
|
632 |
READ_MARKER(); |
READ_MARKER(); |
633 |
height = BitstreamGetBits(bs, 13); // video_object_layer_height |
height = BitstreamGetBits(bs, 13); // video_object_layer_height |
|
//DPRINTF("height %i", height); |
|
634 |
READ_MARKER(); |
READ_MARKER(); |
635 |
|
|
636 |
if (width != dec->width || height != dec->height) { |
DPRINTF(DPRINTF_HEADER, "width %i", width); |
637 |
//DPRINTF("FATAL: video dimension discrepancy ***"); |
DPRINTF(DPRINTF_HEADER, "height %i", height); |
638 |
//DPRINTF("bitstream width/height %i x %i", width, height); |
|
639 |
//DPRINTF("param width/height %i x %i", dec->width, dec->height); |
if (dec->width != width || dec->height != height) |
640 |
|
{ |
641 |
|
if (dec->fixed_dimensions) |
642 |
|
{ |
643 |
|
DPRINTF(DPRINTF_ERROR, "XVID_DEC_PARAM width/height does not match bitstream"); |
644 |
return -1; |
return -1; |
645 |
} |
} |
646 |
|
resize = 1; |
647 |
|
dec->width = width; |
648 |
|
dec->height = height; |
649 |
} |
} |
|
|
|
|
if ((dec->interlacing = BitstreamGetBit(bs))) { |
|
|
//DPRINTF("vol: interlacing"); |
|
650 |
} |
} |
651 |
|
|
652 |
|
dec->interlacing = BitstreamGetBit(bs); |
653 |
|
DPRINTF(DPRINTF_HEADER, "interlacing %i", dec->interlacing); |
654 |
|
|
655 |
if (!BitstreamGetBit(bs)) // obmc_disable |
if (!BitstreamGetBit(bs)) // obmc_disable |
656 |
{ |
{ |
657 |
//DPRINTF("IGNORED/TODO: !obmc_disable"); |
DPRINTF(DPRINTF_ERROR, "obmc_disabled==false not supported"); |
658 |
// TODO |
// TODO |
659 |
// fucking divx4.02 has this enabled |
// fucking divx4.02 has this enabled |
660 |
} |
} |
661 |
|
|
662 |
if (BitstreamGetBits(bs, (vol_ver_id == 1 ? 1 : 2))) // sprite_enable |
dec->sprite_enable = BitstreamGetBits(bs, (vol_ver_id == 1 ? 1 : 2)); // sprite_enable |
663 |
|
|
664 |
|
if (dec->sprite_enable == SPRITE_STATIC || dec->sprite_enable == SPRITE_GMC) |
665 |
{ |
{ |
666 |
//DPRINTF("sprite_enable; not supported"); |
int low_latency_sprite_enable; |
667 |
return -1; |
|
668 |
|
if (dec->sprite_enable != SPRITE_GMC) |
669 |
|
{ |
670 |
|
int sprite_width; |
671 |
|
int sprite_height; |
672 |
|
int sprite_left_coord; |
673 |
|
int sprite_top_coord; |
674 |
|
sprite_width = BitstreamGetBits(bs, 13); // sprite_width |
675 |
|
READ_MARKER(); |
676 |
|
sprite_height = BitstreamGetBits(bs, 13); // sprite_height |
677 |
|
READ_MARKER(); |
678 |
|
sprite_left_coord = BitstreamGetBits(bs, 13); // sprite_left_coordinate |
679 |
|
READ_MARKER(); |
680 |
|
sprite_top_coord = BitstreamGetBits(bs, 13); // sprite_top_coordinate |
681 |
|
READ_MARKER(); |
682 |
|
} |
683 |
|
dec->sprite_warping_points = BitstreamGetBits(bs, 6); // no_of_sprite_warping_points |
684 |
|
dec->sprite_warping_accuracy = BitstreamGetBits(bs, 2); // sprite_warping_accuracy |
685 |
|
dec->sprite_brightness_change = BitstreamGetBits(bs, 1); // brightness_change |
686 |
|
if (dec->sprite_enable != SPRITE_GMC) |
687 |
|
{ |
688 |
|
low_latency_sprite_enable = BitstreamGetBits(bs, 1); // low_latency_sprite_enable |
689 |
|
} |
690 |
} |
} |
691 |
|
|
692 |
if (vol_ver_id != 1 && |
if (vol_ver_id != 1 && |
696 |
|
|
697 |
if (BitstreamGetBit(bs)) // not_8_bit |
if (BitstreamGetBit(bs)) // not_8_bit |
698 |
{ |
{ |
699 |
//DPRINTF("+ not_8_bit [IGNORED/TODO]"); |
DPRINTF(DPRINTF_HEADER, "not_8_bit==true (ignored)"); |
700 |
dec->quant_bits = BitstreamGetBits(bs, 4); // quant_precision |
dec->quant_bits = BitstreamGetBits(bs, 4); // quant_precision |
701 |
BitstreamSkip(bs, 4); // bits_per_pixel |
BitstreamSkip(bs, 4); // bits_per_pixel |
702 |
} else { |
} else { |
710 |
} |
} |
711 |
|
|
712 |
dec->quant_type = BitstreamGetBit(bs); // quant_type |
dec->quant_type = BitstreamGetBit(bs); // quant_type |
713 |
//DPRINTF("**** quant_type %i", dec->quant_type); |
DPRINTF(DPRINTF_HEADER, "quant_type %i", dec->quant_type); |
714 |
|
|
715 |
if (dec->quant_type) { |
if (dec->quant_type) { |
716 |
if (BitstreamGetBit(bs)) // load_intra_quant_mat |
if (BitstreamGetBit(bs)) // load_intra_quant_mat |
717 |
{ |
{ |
718 |
uint8_t matrix[64]; |
uint8_t matrix[64]; |
719 |
|
|
720 |
|
DPRINTF(DPRINTF_HEADER, "load_intra_quant_mat"); |
721 |
|
|
722 |
bs_get_matrix(bs, matrix); |
bs_get_matrix(bs, matrix); |
723 |
set_intra_matrix(matrix); |
set_intra_matrix(matrix); |
724 |
} else |
} else |
728 |
{ |
{ |
729 |
uint8_t matrix[64]; |
uint8_t matrix[64]; |
730 |
|
|
731 |
|
DPRINTF(DPRINTF_HEADER, "load_inter_quant_mat"); |
732 |
|
|
733 |
bs_get_matrix(bs, matrix); |
bs_get_matrix(bs, matrix); |
734 |
set_inter_matrix(matrix); |
set_inter_matrix(matrix); |
735 |
} else |
} else |
736 |
set_inter_matrix(get_default_inter_matrix()); |
set_inter_matrix(get_default_inter_matrix()); |
737 |
|
|
738 |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE) { |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE) { |
739 |
// TODO |
DPRINTF(DPRINTF_ERROR, "greyscale matrix not supported"); |
|
//DPRINTF("TODO: grayscale matrix stuff"); |
|
740 |
return -1; |
return -1; |
741 |
} |
} |
742 |
|
|
744 |
|
|
745 |
|
|
746 |
if (vol_ver_id != 1) { |
if (vol_ver_id != 1) { |
747 |
dec->quarterpel = BitstreamGetBit(bs); // quarter_sampe |
dec->quarterpel = BitstreamGetBit(bs); // quarter_sample |
748 |
if (dec->quarterpel) { |
DPRINTF(DPRINTF_HEADER,"quarterpel %i", dec->quarterpel); |
|
//DPRINTF("IGNORED/TODO: quarter_sample"); |
|
749 |
} |
} |
750 |
} else { |
else |
751 |
dec->quarterpel = 0; |
dec->quarterpel = 0; |
|
} |
|
752 |
|
|
|
if (!BitstreamGetBit(bs)) // complexity_estimation_disable |
|
|
{ |
|
|
//DPRINTF("TODO: complexity_estimation header"); |
|
|
// TODO |
|
|
return -1; |
|
|
} |
|
753 |
|
|
754 |
if (!BitstreamGetBit(bs)) // resync_marker_disable |
dec->complexity_estimation_disable = BitstreamGetBit(bs); /* complexity estimation disable */ |
755 |
|
if (!dec->complexity_estimation_disable) |
756 |
{ |
{ |
757 |
//DPRINTF("IGNORED/TODO: !resync_marker_disable"); |
read_vol_complexity_estimation_header(bs, dec); |
|
// TODO |
|
758 |
} |
} |
759 |
|
|
760 |
|
BitstreamSkip(bs, 1); // resync_marker_disable |
761 |
|
|
762 |
if (BitstreamGetBit(bs)) // data_partitioned |
if (BitstreamGetBit(bs)) // data_partitioned |
763 |
{ |
{ |
764 |
//DPRINTF("+ data_partitioned"); |
DPRINTF(DPRINTF_ERROR, "data_partitioned not supported"); |
765 |
BitstreamSkip(bs, 1); // reversible_vlc |
BitstreamSkip(bs, 1); // reversible_vlc |
766 |
} |
} |
767 |
|
|
768 |
if (vol_ver_id != 1) { |
if (vol_ver_id != 1) { |
769 |
if (BitstreamGetBit(bs)) // newpred_enable |
dec->newpred_enable = BitstreamGetBit(bs); |
770 |
|
if (dec->newpred_enable) // newpred_enable |
771 |
{ |
{ |
772 |
//DPRINTF("+ newpred_enable"); |
DPRINTF(DPRINTF_HEADER, "+ newpred_enable"); |
773 |
BitstreamSkip(bs, 2); // requested_upstream_message_type |
BitstreamSkip(bs, 2); // requested_upstream_message_type |
774 |
BitstreamSkip(bs, 1); // newpred_segment_type |
BitstreamSkip(bs, 1); // newpred_segment_type |
775 |
} |
} |
776 |
if (BitstreamGetBit(bs)) // reduced_resolution_vop_enable |
dec->reduced_resolution_enable = BitstreamGetBit(bs); /* reduced_resolution_vop_enable */ |
777 |
{ |
DPRINTF(DPRINTF_HEADER, "reduced_resolution_enable %i", dec->reduced_resolution_enable); |
|
//DPRINTF("TODO: reduced_resolution_vop_enable"); |
|
|
// TODO |
|
|
return -1; |
|
778 |
} |
} |
779 |
|
else |
780 |
|
{ |
781 |
|
dec->newpred_enable = 0; |
782 |
|
dec->reduced_resolution_enable = 0; |
783 |
} |
} |
784 |
|
|
785 |
if ((dec->scalability = BitstreamGetBit(bs))) // scalability |
dec->scalability = BitstreamGetBit(bs); /* scalability */ |
786 |
{ |
if (dec->scalability) |
787 |
// TODO |
{ |
788 |
//DPRINTF("TODO: scalability"); |
DPRINTF(DPRINTF_ERROR, "scalability not supported"); |
789 |
|
BitstreamSkip(bs, 1); /* hierarchy_type */ |
790 |
|
BitstreamSkip(bs, 4); /* ref_layer_id */ |
791 |
|
BitstreamSkip(bs, 1); /* ref_layer_sampling_direc */ |
792 |
|
BitstreamSkip(bs, 5); /* hor_sampling_factor_n */ |
793 |
|
BitstreamSkip(bs, 5); /* hor_sampling_factor_m */ |
794 |
|
BitstreamSkip(bs, 5); /* vert_sampling_factor_n */ |
795 |
|
BitstreamSkip(bs, 5); /* vert_sampling_factor_m */ |
796 |
|
BitstreamSkip(bs, 1); /* enhancement_type */ |
797 |
|
if(dec->shape == VIDOBJLAY_SHAPE_BINARY /* && hierarchy_type==0 */) { |
798 |
|
BitstreamSkip(bs, 1); /* use_ref_shape */ |
799 |
|
BitstreamSkip(bs, 1); /* use_ref_texture */ |
800 |
|
BitstreamSkip(bs, 5); /* shape_hor_sampling_factor_n */ |
801 |
|
BitstreamSkip(bs, 5); /* shape_hor_sampling_factor_m */ |
802 |
|
BitstreamSkip(bs, 5); /* shape_vert_sampling_factor_n */ |
803 |
|
BitstreamSkip(bs, 5); /* shape_vert_sampling_factor_m */ |
804 |
|
} |
805 |
return -1; |
return -1; |
806 |
} |
} |
807 |
} else // dec->shape == BINARY_ONLY |
} else // dec->shape == BINARY_ONLY |
808 |
{ |
{ |
809 |
if (vol_ver_id != 1) { |
if (vol_ver_id != 1) { |
810 |
if (BitstreamGetBit(bs)) // scalability |
dec->scalability = BitstreamGetBit(bs); /* scalability */ |
811 |
|
if (dec->scalability) |
812 |
{ |
{ |
813 |
// TODO |
DPRINTF(DPRINTF_ERROR, "scalability not supported"); |
814 |
//DPRINTF("TODO: scalability"); |
BitstreamSkip(bs, 4); /* ref_layer_id */ |
815 |
|
BitstreamSkip(bs, 5); /* hor_sampling_factor_n */ |
816 |
|
BitstreamSkip(bs, 5); /* hor_sampling_factor_m */ |
817 |
|
BitstreamSkip(bs, 5); /* vert_sampling_factor_n */ |
818 |
|
BitstreamSkip(bs, 5); /* vert_sampling_factor_m */ |
819 |
return -1; |
return -1; |
820 |
} |
} |
821 |
} |
} |
823 |
|
|
824 |
} |
} |
825 |
|
|
826 |
|
return (resize ? -3 : -2 ); /* VOL */ |
827 |
|
|
828 |
} else if (start_code == GRPOFVOP_START_CODE) { |
} else if (start_code == GRPOFVOP_START_CODE) { |
829 |
//DPRINTF("group_of_vop"); |
|
830 |
|
DPRINTF(DPRINTF_STARTCODE, "<group_of_vop>"); |
831 |
|
|
832 |
BitstreamSkip(bs, 32); |
BitstreamSkip(bs, 32); |
833 |
{ |
{ |
834 |
int hours, minutes, seconds; |
int hours, minutes, seconds; |
837 |
minutes = BitstreamGetBits(bs, 6); |
minutes = BitstreamGetBits(bs, 6); |
838 |
READ_MARKER(); |
READ_MARKER(); |
839 |
seconds = BitstreamGetBits(bs, 6); |
seconds = BitstreamGetBits(bs, 6); |
840 |
//DPRINTF("%ih %im %is", hours, minutes, seconds); |
|
841 |
|
DPRINTF(DPRINTF_HEADER, "time %ih%im%is", hours,minutes,seconds); |
842 |
} |
} |
843 |
BitstreamSkip(bs, 1); // closed_gov |
BitstreamSkip(bs, 1); // closed_gov |
844 |
BitstreamSkip(bs, 1); // broken_link |
BitstreamSkip(bs, 1); // broken_link |
845 |
|
|
846 |
} else if (start_code == VOP_START_CODE) { |
} else if (start_code == VOP_START_CODE) { |
847 |
//DPRINTF("vop_start_code"); |
|
848 |
|
DPRINTF(DPRINTF_STARTCODE, "<vop>"); |
849 |
|
|
850 |
BitstreamSkip(bs, 32); // vop_start_code |
BitstreamSkip(bs, 32); // vop_start_code |
851 |
|
|
852 |
coding_type = BitstreamGetBits(bs, 2); // vop_coding_type |
coding_type = BitstreamGetBits(bs, 2); // vop_coding_type |
853 |
//DPRINTF("coding_type %i", coding_type); |
DPRINTF(DPRINTF_HEADER, "coding_type %i", coding_type); |
854 |
|
|
855 |
// *************************** for decode B-frame time *********************** |
// *************************** for decode B-frame time *********************** |
856 |
while (BitstreamGetBit(bs) != 0) // time_base |
while (BitstreamGetBit(bs) != 0) // time_base |
862 |
time_increment = (BitstreamGetBits(bs, dec->time_inc_bits)); // vop_time_increment |
time_increment = (BitstreamGetBits(bs, dec->time_inc_bits)); // vop_time_increment |
863 |
} |
} |
864 |
|
|
865 |
/* |
DPRINTF(DPRINTF_HEADER, "time_base %i", time_incr); |
866 |
DPRINTF("%c %i:%i", |
DPRINTF(DPRINTF_HEADER, "time_increment %i", time_increment); |
867 |
coding_type == I_VOP ? 'I' : coding_type == P_VOP ? 'P' : 'B', |
|
868 |
|
DPRINTF(DPRINTF_TIMECODE, "%c %i:%i", |
869 |
|
coding_type == I_VOP ? 'I' : coding_type == P_VOP ? 'P' : coding_type == B_VOP ? 'B' : 'S', |
870 |
time_incr, time_increment); |
time_incr, time_increment); |
|
*/ |
|
871 |
|
|
872 |
if (coding_type != B_VOP) { |
if (coding_type != B_VOP) { |
873 |
dec->last_time_base = dec->time_base; |
dec->last_time_base = dec->time_base; |
874 |
dec->time_base += time_incr; |
dec->time_base += time_incr; |
875 |
dec->time = |
dec->time = time_increment; |
876 |
dec->time_base * time_increment_resolution + |
|
877 |
|
/* dec->time_base * dec->time_inc_resolution + |
878 |
time_increment; |
time_increment; |
879 |
dec->time_pp = (uint32_t) (dec->time - dec->last_non_b_time); |
*/ dec->time_pp = (uint32_t) |
880 |
|
(dec->time_inc_resolution + dec->time - dec->last_non_b_time)%dec->time_inc_resolution; |
881 |
dec->last_non_b_time = dec->time; |
dec->last_non_b_time = dec->time; |
882 |
} else { |
} else { |
883 |
dec->time = |
dec->time = time_increment; |
884 |
|
/* |
885 |
(dec->last_time_base + |
(dec->last_time_base + |
886 |
time_incr) * time_increment_resolution + time_increment; |
time_incr) * dec->time_inc_resolution + time_increment; |
887 |
dec->time_bp = (uint32_t) (dec->last_non_b_time - dec->time); |
*/ |
888 |
|
dec->time_bp = (uint32_t) |
889 |
|
(dec->time_inc_resolution + dec->last_non_b_time - dec->time)%dec->time_inc_resolution; |
890 |
} |
} |
891 |
//DPRINTF("time_increment %i",time_increment); |
DPRINTF(DPRINTF_HEADER,"time_pp=%i", dec->time_pp); |
892 |
|
DPRINTF(DPRINTF_HEADER,"time_bp=%i", dec->time_bp); |
893 |
|
|
894 |
READ_MARKER(); |
READ_MARKER(); |
895 |
|
|
896 |
if (!BitstreamGetBit(bs)) // vop_coded |
if (!BitstreamGetBit(bs)) // vop_coded |
897 |
{ |
{ |
898 |
//DPRINTF("**NOT CODED**"); |
DPRINTF(DPRINTF_HEADER, "vop_coded==false"); |
899 |
return N_VOP; |
return N_VOP; |
900 |
} |
} |
901 |
|
|
902 |
/* if (newpred_enable) |
if (dec->newpred_enable) |
903 |
|
{ |
904 |
|
int vop_id; |
905 |
|
int vop_id_for_prediction; |
906 |
|
|
907 |
|
vop_id = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); |
908 |
|
DPRINTF(DPRINTF_HEADER, "vop_id %i", vop_id); |
909 |
|
if (BitstreamGetBit(bs)) /* vop_id_for_prediction_indication */ |
910 |
{ |
{ |
911 |
|
vop_id_for_prediction = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); |
912 |
|
DPRINTF(DPRINTF_HEADER, "vop_id_for_prediction %i", vop_id_for_prediction); |
913 |
} |
} |
914 |
*/ |
READ_MARKER(); |
915 |
|
} |
916 |
|
|
917 |
|
|
918 |
|
|
919 |
// fix a little bug by MinChen <chenm002@163.com> |
// fix a little bug by MinChen <chenm002@163.com> |
920 |
if ((dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) && |
if ((dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) && |
921 |
(coding_type == P_VOP)) { |
( (coding_type == P_VOP) || (coding_type == S_VOP && dec->sprite_enable == SPRITE_GMC) ) ) { |
922 |
*rounding = BitstreamGetBit(bs); // rounding_type |
*rounding = BitstreamGetBit(bs); // rounding_type |
923 |
//DPRINTF("rounding %i", *rounding); |
DPRINTF(DPRINTF_HEADER, "rounding %i", *rounding); |
924 |
} |
} |
925 |
|
|
926 |
/* if (reduced_resolution_enable) |
if (dec->reduced_resolution_enable && |
927 |
|
dec->shape == VIDOBJLAY_SHAPE_RECTANGULAR && |
928 |
|
(coding_type == P_VOP || coding_type == I_VOP)) { |
929 |
|
|
930 |
|
*reduced_resolution = BitstreamGetBit(bs); |
931 |
|
DPRINTF(DPRINTF_HEADER, "reduced_resolution %i", *reduced_resolution); |
932 |
|
} |
933 |
|
else |
934 |
{ |
{ |
935 |
|
*reduced_resolution = 0; |
936 |
} |
} |
|
*/ |
|
937 |
|
|
938 |
if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) { |
if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) { |
939 |
|
if(!(dec->sprite_enable == SPRITE_STATIC && coding_type == I_VOP)) { |
940 |
|
|
941 |
uint32_t width, height; |
uint32_t width, height; |
942 |
uint32_t horiz_mc_ref, vert_mc_ref; |
uint32_t horiz_mc_ref, vert_mc_ref; |
943 |
|
|
950 |
vert_mc_ref = BitstreamGetBits(bs, 13); |
vert_mc_ref = BitstreamGetBits(bs, 13); |
951 |
READ_MARKER(); |
READ_MARKER(); |
952 |
|
|
953 |
//DPRINTF("vop_width/height %i x %i", width, height); |
DPRINTF(DPRINTF_HEADER, "width %i", width); |
954 |
//DPRINTF("ref %i x %i", horiz_mc_ref, vert_mc_ref); |
DPRINTF(DPRINTF_HEADER, "height %i", height); |
955 |
|
DPRINTF(DPRINTF_HEADER, "horiz_mc_ref %i", horiz_mc_ref); |
956 |
|
DPRINTF(DPRINTF_HEADER, "vert_mc_ref %i", vert_mc_ref); |
957 |
|
} |
958 |
|
|
959 |
BitstreamSkip(bs, 1); // change_conv_ratio_disable |
BitstreamSkip(bs, 1); // change_conv_ratio_disable |
960 |
if (BitstreamGetBit(bs)) // vop_constant_alpha |
if (BitstreamGetBit(bs)) // vop_constant_alpha |
963 |
} |
} |
964 |
} |
} |
965 |
|
|
|
|
|
966 |
if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) { |
if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) { |
967 |
|
|
968 |
|
if (!dec->complexity_estimation_disable) |
969 |
|
{ |
970 |
|
read_vop_complexity_estimation_header(bs, dec, coding_type); |
971 |
|
} |
972 |
|
|
973 |
// intra_dc_vlc_threshold |
// intra_dc_vlc_threshold |
974 |
*intra_dc_threshold = |
*intra_dc_threshold = |
975 |
intra_dc_threshold_table[BitstreamGetBits(bs, 3)]; |
intra_dc_threshold_table[BitstreamGetBits(bs, 3)]; |
976 |
|
|
977 |
|
dec->top_field_first = 0; |
978 |
|
dec->alternate_vertical_scan = 0; |
979 |
|
|
980 |
if (dec->interlacing) { |
if (dec->interlacing) { |
981 |
if ((dec->top_field_first = BitstreamGetBit(bs))) { |
dec->top_field_first = BitstreamGetBit(bs); |
982 |
//DPRINTF("vop: top_field_first"); |
DPRINTF(DPRINTF_HEADER, "interlace top_field_first %i", dec->top_field_first); |
983 |
|
dec->alternate_vertical_scan = BitstreamGetBit(bs); |
984 |
|
DPRINTF(DPRINTF_HEADER, "interlace alternate_vertical_scan %i", dec->alternate_vertical_scan); |
985 |
|
|
986 |
|
} |
987 |
} |
} |
988 |
if ((dec->alternate_vertical_scan = BitstreamGetBit(bs))) { |
|
989 |
//DPRINTF("vop: alternate_vertical_scan"); |
if ((dec->sprite_enable == SPRITE_STATIC || dec->sprite_enable== SPRITE_GMC) && coding_type == S_VOP) { |
990 |
|
|
991 |
|
int i; |
992 |
|
|
993 |
|
for (i = 0 ; i < dec->sprite_warping_points; i++) |
994 |
|
{ |
995 |
|
int length; |
996 |
|
int x = 0, y = 0; |
997 |
|
|
998 |
|
/* sprite code borowed from ffmpeg; thx Michael Niedermayer <michaelni@gmx.at> */ |
999 |
|
length = bs_get_spritetrajectory(bs); |
1000 |
|
if(length){ |
1001 |
|
x= BitstreamGetBits(bs, length); |
1002 |
|
if ((x >> (length - 1)) == 0) /* if MSB not set it is negative*/ |
1003 |
|
x = - (x ^ ((1 << length) - 1)); |
1004 |
} |
} |
1005 |
|
READ_MARKER(); |
1006 |
|
|
1007 |
|
length = bs_get_spritetrajectory(bs); |
1008 |
|
if(length){ |
1009 |
|
y = BitstreamGetBits(bs, length); |
1010 |
|
if ((y >> (length - 1)) == 0) /* if MSB not set it is negative*/ |
1011 |
|
y = - (y ^ ((1 << length) - 1)); |
1012 |
} |
} |
1013 |
|
READ_MARKER(); |
1014 |
|
|
1015 |
|
gmc_warp->duv[i].x = x; |
1016 |
|
gmc_warp->duv[i].y = y; |
1017 |
|
|
1018 |
|
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i)", i, x, y); |
1019 |
|
} |
1020 |
|
|
1021 |
|
if (dec->sprite_brightness_change) |
1022 |
|
{ |
1023 |
|
// XXX: brightness_change_factor() |
1024 |
|
} |
1025 |
|
if (dec->sprite_enable == SPRITE_STATIC) |
1026 |
|
{ |
1027 |
|
// XXX: todo |
1028 |
|
} |
1029 |
|
|
1030 |
} |
} |
1031 |
|
|
1032 |
if ((*quant = BitstreamGetBits(bs, dec->quant_bits)) < 1) // vop_quant |
if ((*quant = BitstreamGetBits(bs, dec->quant_bits)) < 1) // vop_quant |
1033 |
*quant = 1; |
*quant = 1; |
1034 |
|
DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
|
//DPRINTF("quant %i", *quant); |
|
1035 |
|
|
1036 |
if (coding_type != I_VOP) { |
if (coding_type != I_VOP) { |
1037 |
*fcode_forward = BitstreamGetBits(bs, 3); // fcode_forward |
*fcode_forward = BitstreamGetBits(bs, 3); // fcode_forward |
1038 |
|
DPRINTF(DPRINTF_HEADER, "fcode_forward %i", *fcode_forward); |
1039 |
} |
} |
1040 |
|
|
1041 |
if (coding_type == B_VOP) { |
if (coding_type == B_VOP) { |
1042 |
*fcode_backward = BitstreamGetBits(bs, 3); // fcode_backward |
*fcode_backward = BitstreamGetBits(bs, 3); // fcode_backward |
1043 |
|
DPRINTF(DPRINTF_HEADER, "fcode_backward %i", *fcode_backward); |
1044 |
} |
} |
1045 |
if (!dec->scalability) { |
if (!dec->scalability) { |
1046 |
if ((dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) && |
if ((dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) && |
1049 |
} |
} |
1050 |
} |
} |
1051 |
return coding_type; |
return coding_type; |
1052 |
|
|
1053 |
} else if (start_code == USERDATA_START_CODE) { |
} else if (start_code == USERDATA_START_CODE) { |
1054 |
//DPRINTF("user_data"); |
char tmp[256]; |
1055 |
|
int i, version, build; |
1056 |
|
char packed; |
1057 |
|
|
1058 |
BitstreamSkip(bs, 32); // user_data_start_code |
BitstreamSkip(bs, 32); // user_data_start_code |
1059 |
|
|
1060 |
|
tmp[0] = BitstreamShowBits(bs, 8); |
1061 |
|
|
1062 |
|
for(i = 1; i < 256; i++){ |
1063 |
|
tmp[i] = (BitstreamShowBits(bs, 16) & 0xFF); |
1064 |
|
|
1065 |
|
if(tmp[i] == 0) |
1066 |
|
break; |
1067 |
|
|
1068 |
|
BitstreamSkip(bs, 8); |
1069 |
|
} |
1070 |
|
|
1071 |
|
DPRINTF(DPRINTF_STARTCODE, "<user_data>: %s\n", tmp); |
1072 |
|
|
1073 |
|
/* read xvid bitstream version */ |
1074 |
|
if(strncmp(tmp, "XviD", 4) == 0) { |
1075 |
|
sscanf(tmp, "XviD%d", &dec->bs_version); |
1076 |
|
DPRINTF(DPRINTF_HEADER, "xvid bitstream version=%i", dec->bs_version); |
1077 |
|
} |
1078 |
|
|
1079 |
|
/* divx detection */ |
1080 |
|
i = sscanf(tmp, "DivX%dBuild%d%c", &version, &build, &packed); |
1081 |
|
if (i < 2) |
1082 |
|
i = sscanf(tmp, "DivX%db%d%c", &version, &build, &packed); |
1083 |
|
|
1084 |
|
if (i >= 2) |
1085 |
|
{ |
1086 |
|
dec->packed_mode = (i == 3 && packed == 'p'); |
1087 |
|
DPRINTF(DPRINTF_HEADER, "divx version=%i, build=%i packed=%i", |
1088 |
|
version, build, dec->packed_mode); |
1089 |
|
} |
1090 |
|
|
1091 |
} else // start_code == ? |
} else // start_code == ? |
1092 |
{ |
{ |
1093 |
if (BitstreamShowBits(bs, 24) == 0x000001) { |
if (BitstreamShowBits(bs, 24) == 0x000001) { |
1094 |
//DPRINTF("*** WARNING: unknown start_code %x", |
DPRINTF(DPRINTF_STARTCODE, "<unknown: %x>", BitstreamShowBits(bs, 32)); |
|
// BitstreamShowBits(bs, 32)); |
|
1095 |
} |
} |
1096 |
BitstreamSkip(bs, 8); |
BitstreamSkip(bs, 8); |
1097 |
} |
} |
1130 |
void |
void |
1131 |
BitstreamWriteVolHeader(Bitstream * const bs, |
BitstreamWriteVolHeader(Bitstream * const bs, |
1132 |
const MBParam * pParam, |
const MBParam * pParam, |
1133 |
const FRAMEINFO * frame) |
const FRAMEINFO * const frame) |
1134 |
{ |
{ |
1135 |
// video object_start_code & vo_id |
static const unsigned int vo_id = 0; |
1136 |
|
static const unsigned int vol_id = 0; |
1137 |
|
int vol_ver_id=1; |
1138 |
|
int profile = 0x03; /* simple profile/level 3 */ |
1139 |
|
|
1140 |
|
if ( pParam->m_quarterpel || (frame->global_flags & XVID_GMC) || |
1141 |
|
(pParam->global & XVID_GLOBAL_REDUCED)) |
1142 |
|
vol_ver_id = 2; |
1143 |
|
|
1144 |
|
if ((pParam->global & XVID_GLOBAL_REDUCED)) |
1145 |
|
profile = 0x93; /* advanced realtime simple profile/level 3 */ |
1146 |
|
|
1147 |
|
if (pParam->m_quarterpel || (frame->global_flags & XVID_GMC)) |
1148 |
|
profile = 0xf3; /* advanced simple profile/level 2 */ |
1149 |
|
|
1150 |
|
// visual_object_sequence_start_code |
1151 |
|
// BitstreamPad(bs); |
1152 |
|
/* no padding here, anymore. You have to make sure that you are |
1153 |
|
byte aligned, and that always 1-8 padding bits have been written */ |
1154 |
|
|
1155 |
|
BitstreamPutBits(bs, VISOBJSEQ_START_CODE, 32); |
1156 |
|
BitstreamPutBits(bs, profile, 8); |
1157 |
|
|
1158 |
|
// visual_object_start_code |
1159 |
BitstreamPad(bs); |
BitstreamPad(bs); |
1160 |
BitstreamPutBits(bs, VO_START_CODE, 27); |
BitstreamPutBits(bs, VISOBJ_START_CODE, 32); |
1161 |
BitstreamPutBits(bs, 0, 5); |
BitstreamPutBits(bs, 0, 1); // is_visual_object_identifier |
1162 |
|
|
1163 |
|
/* Video type */ |
1164 |
|
BitstreamPutBits(bs, VISOBJ_TYPE_VIDEO, 4); // visual_object_type |
1165 |
|
BitstreamPutBit(bs, 0); /* video_signal_type */ |
1166 |
|
|
1167 |
|
// video object_start_code & vo_id |
1168 |
|
BitstreamPadAlways(bs); // next_start_code() |
1169 |
|
BitstreamPutBits(bs, VIDOBJ_START_CODE|(vo_id&0x5), 32); |
1170 |
|
|
1171 |
// video_object_layer_start_code & vol_id |
// video_object_layer_start_code & vol_id |
1172 |
BitstreamPutBits(bs, VOL_START_CODE, 28); |
BitstreamPad(bs); |
1173 |
BitstreamPutBits(bs, 0, 4); |
BitstreamPutBits(bs, VIDOBJLAY_START_CODE|(vol_id&0x4), 32); |
1174 |
|
|
1175 |
BitstreamPutBit(bs, 0); // random_accessible_vol |
BitstreamPutBit(bs, 0); // random_accessible_vol |
1176 |
BitstreamPutBits(bs, 0, 8); // video_object_type_indication |
BitstreamPutBits(bs, 0, 8); // video_object_type_indication |
1177 |
|
|
1178 |
|
if (vol_ver_id == 1) |
1179 |
|
{ |
1180 |
BitstreamPutBit(bs, 0); // is_object_layer_identified (0=not given) |
BitstreamPutBit(bs, 0); // is_object_layer_identified (0=not given) |
1181 |
|
} |
1182 |
|
else |
1183 |
|
{ |
1184 |
|
BitstreamPutBit(bs, 1); // is_object_layer_identified |
1185 |
|
BitstreamPutBits(bs, vol_ver_id, 4); // vol_ver_id == 2 |
1186 |
|
BitstreamPutBits(bs, 4, 3); // vol_ver_priority (1==highest, 7==lowest) |
1187 |
|
} |
1188 |
|
|
1189 |
BitstreamPutBits(bs, 1, 4); // aspect_ratio_info (1=1:1) |
BitstreamPutBits(bs, 1, 4); // aspect_ratio_info (1=1:1) |
1190 |
|
|
|
#ifdef BFRAMES |
|
|
if (pParam->max_bframes > 0) { |
|
|
//DPRINTF("low_delay=1"); |
|
1191 |
BitstreamPutBit(bs, 1); // vol_control_parameters |
BitstreamPutBit(bs, 1); // vol_control_parameters |
1192 |
BitstreamPutBits(bs, 1, 2); // chroma_format 1="4:2:0" |
BitstreamPutBits(bs, 1, 2); // chroma_format 1="4:2:0" |
1193 |
|
|
1194 |
|
if (pParam->max_bframes > 0) { |
1195 |
BitstreamPutBit(bs, 0); // low_delay |
BitstreamPutBit(bs, 0); // low_delay |
|
BitstreamPutBit(bs, 0); // vbv_parameters (0=not given) |
|
1196 |
} else |
} else |
|
#endif |
|
1197 |
{ |
{ |
1198 |
BitstreamPutBits(bs, 0, 1); // vol_control_parameters (0=not given) |
BitstreamPutBit(bs, 1); // low_delay |
1199 |
} |
} |
1200 |
|
BitstreamPutBit(bs, 0); // vbv_parameters (0=not given) |
1201 |
|
|
1202 |
BitstreamPutBits(bs, 0, 2); // video_object_layer_shape (0=rectangular) |
BitstreamPutBits(bs, 0, 2); // video_object_layer_shape (0=rectangular) |
1203 |
|
|
1204 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1205 |
|
|
1206 |
/* time_increment_resolution; ignored by current decore versions |
/* time_inc_resolution; ignored by current decore versions |
1207 |
eg. 2fps res=2 inc=1 |
eg. 2fps res=2 inc=1 |
1208 |
25fps res=25 inc=1 |
25fps res=25 inc=1 |
1209 |
29.97fps res=30000 inc=1001 |
29.97fps res=30000 inc=1001 |
1210 |
*/ |
*/ |
|
#ifdef BFRAMES |
|
1211 |
BitstreamPutBits(bs, pParam->fbase, 16); |
BitstreamPutBits(bs, pParam->fbase, 16); |
|
#else |
|
|
BitstreamPutBits(bs, 2, 16); |
|
|
#endif |
|
1212 |
|
|
1213 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1214 |
|
|
1215 |
// fixed_vop_rate |
BitstreamPutBit(bs, 1); // fixed_vop_rate = 1 |
1216 |
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); |
|
1217 |
|
|
1218 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1219 |
BitstreamPutBits(bs, pParam->width, 13); // width |
BitstreamPutBits(bs, pParam->width, 13); // width |
1223 |
|
|
1224 |
BitstreamPutBit(bs, frame->global_flags & XVID_INTERLACING); // interlace |
BitstreamPutBit(bs, frame->global_flags & XVID_INTERLACING); // interlace |
1225 |
BitstreamPutBit(bs, 1); // obmc_disable (overlapped block motion compensation) |
BitstreamPutBit(bs, 1); // obmc_disable (overlapped block motion compensation) |
1226 |
BitstreamPutBit(bs, 0); // sprite_enable |
|
1227 |
BitstreamPutBit(bs, 0); // not_in_bit |
if (vol_ver_id != 1) |
1228 |
|
{ if (frame->global_flags & XVID_GMC) |
1229 |
|
{ BitstreamPutBits(bs, 2, 2); // sprite_enable=='GMC' |
1230 |
|
BitstreamPutBits(bs, 2, 6); // no_of_sprite_warping_points |
1231 |
|
BitstreamPutBits(bs, 3, 2); // sprite_warping_accuracy 0==1/2, 1=1/4, 2=1/8, 3=1/16 |
1232 |
|
BitstreamPutBit(bs, 0); // sprite_brightness_change (not supported) |
1233 |
|
|
1234 |
|
/* currently we use no_of_sprite_warping_points==2, sprite_warping_accuracy==3 |
1235 |
|
for DivX5 compatability */ |
1236 |
|
|
1237 |
|
} else |
1238 |
|
BitstreamPutBits(bs, 0, 2); // sprite_enable==off |
1239 |
|
} |
1240 |
|
else |
1241 |
|
BitstreamPutBit(bs, 0); // sprite_enable==off |
1242 |
|
|
1243 |
|
BitstreamPutBit(bs, 0); // not_8_bit |
1244 |
|
|
1245 |
// quant_type 0=h.263 1=mpeg4(quantizer tables) |
// quant_type 0=h.263 1=mpeg4(quantizer tables) |
1246 |
BitstreamPutBit(bs, pParam->m_quant_type); |
BitstreamPutBit(bs, pParam->m_quant_type); |
1258 |
|
|
1259 |
} |
} |
1260 |
|
|
1261 |
|
if (vol_ver_id != 1) { |
1262 |
|
if (pParam->m_quarterpel) |
1263 |
|
BitstreamPutBit(bs, 1); // quarterpel |
1264 |
|
else |
1265 |
|
BitstreamPutBit(bs, 0); // no quarterpel |
1266 |
|
} |
1267 |
|
|
1268 |
BitstreamPutBit(bs, 1); // complexity_estimation_disable |
BitstreamPutBit(bs, 1); // complexity_estimation_disable |
1269 |
BitstreamPutBit(bs, 1); // resync_marker_disable |
BitstreamPutBit(bs, 1); // resync_marker_disable |
1270 |
BitstreamPutBit(bs, 0); // data_partitioned |
BitstreamPutBit(bs, 0); // data_partitioned |
1271 |
|
|
1272 |
|
if (vol_ver_id != 1) |
1273 |
|
{ |
1274 |
|
BitstreamPutBit(bs, 0); // newpred_enable |
1275 |
|
|
1276 |
|
BitstreamPutBit(bs, (pParam->global & XVID_GLOBAL_REDUCED)?1:0); |
1277 |
|
/* reduced_resolution_vop_enabled */ |
1278 |
|
} |
1279 |
|
|
1280 |
BitstreamPutBit(bs, 0); // scalability |
BitstreamPutBit(bs, 0); // scalability |
1281 |
|
|
1282 |
|
BitstreamPadAlways(bs); // next_start_code() |
1283 |
|
|
1284 |
|
/* fake divx5 id, to ensure compatibility with divx5 decoder */ |
1285 |
|
#define DIVX5_ID "DivX501b481p" |
1286 |
|
if (pParam->max_bframes > 0 && (pParam->global & XVID_GLOBAL_PACKED)) { |
1287 |
|
BitstreamWriteUserData(bs, DIVX5_ID, strlen(DIVX5_ID)); |
1288 |
|
} |
1289 |
|
|
1290 |
|
/* xvid id */ |
1291 |
|
#define XVID_ID "XviD" XVID_BS_VERSION |
1292 |
|
BitstreamWriteUserData(bs, XVID_ID, strlen(XVID_ID)); |
1293 |
} |
} |
1294 |
|
|
1295 |
|
|
1296 |
/* |
/* |
1297 |
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) |
|
1298 |
*/ |
*/ |
1299 |
void |
void |
1300 |
BitstreamWriteVopHeader(Bitstream * const bs, |
BitstreamWriteVopHeader( |
1301 |
|
Bitstream * const bs, |
1302 |
const MBParam * pParam, |
const MBParam * pParam, |
1303 |
const FRAMEINFO * frame, |
const FRAMEINFO * const frame, |
1304 |
int vop_coded) |
int vop_coded) |
1305 |
{ |
{ |
|
#ifdef BFRAMES |
|
1306 |
uint32_t i; |
uint32_t i; |
1307 |
#endif |
|
1308 |
BitstreamPad(bs); |
// BitstreamPad(bs); |
1309 |
|
/* no padding here, anymore. You have to make sure that you are |
1310 |
|
byte aligned, and that always 1-8 padding bits have been written */ |
1311 |
|
|
1312 |
BitstreamPutBits(bs, VOP_START_CODE, 32); |
BitstreamPutBits(bs, VOP_START_CODE, 32); |
1313 |
|
|
1314 |
BitstreamPutBits(bs, frame->coding_type, 2); |
BitstreamPutBits(bs, frame->coding_type, 2); |
1315 |
|
DPRINTF(DPRINTF_HEADER, "coding_type = %i", frame->coding_type); |
1316 |
|
|
|
// time_base = 0 write n x PutBit(1), PutBit(0) |
|
|
#ifdef BFRAMES |
|
1317 |
for (i = 0; i < frame->seconds; i++) { |
for (i = 0; i < frame->seconds; i++) { |
1318 |
BitstreamPutBit(bs, 1); |
BitstreamPutBit(bs, 1); |
1319 |
} |
} |
1320 |
BitstreamPutBit(bs, 0); |
BitstreamPutBit(bs, 0); |
|
#else |
|
|
BitstreamPutBits(bs, 0, 1); |
|
|
#endif |
|
1321 |
|
|
1322 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1323 |
|
|
1324 |
// time_increment: value=nth_of_sec, nbits = log2(resolution) |
// time_increment: value=nth_of_sec, nbits = log2(resolution) |
1325 |
#ifdef BFRAMES |
|
1326 |
BitstreamPutBits(bs, frame->ticks, log2bin(pParam->fbase)); |
BitstreamPutBits(bs, frame->ticks, log2bin(pParam->fbase)); |
1327 |
DPRINTF("[%i:%i] %c\n", frame->seconds, frame->ticks, |
/*DPRINTF("[%i:%i] %c", frame->seconds, frame->ticks, |
1328 |
frame->coding_type == I_VOP ? 'I' : frame->coding_type == |
frame->coding_type == I_VOP ? 'I' : frame->coding_type == |
1329 |
P_VOP ? 'P' : 'B'); |
P_VOP ? 'P' : 'B');*/ |
|
#else |
|
|
BitstreamPutBits(bs, 1, 1); |
|
|
#endif |
|
1330 |
|
|
1331 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1332 |
|
|
1333 |
if (!vop_coded) { |
if (!vop_coded) { |
1334 |
BitstreamPutBits(bs, 0, 1); |
BitstreamPutBits(bs, 0, 1); |
1335 |
|
#if 0 |
1336 |
|
BitstreamPadAlways(bs); /* next_start_code() */ |
1337 |
|
#endif |
1338 |
|
/* NB: It's up to the function caller to write the next_start_code(). |
1339 |
|
* At the moment encoder.c respects that requisite because a VOP |
1340 |
|
* always ends with a next_start_code either if it's coded or not |
1341 |
|
* and encoder.c terminates a frame with a next_start_code in whatever |
1342 |
|
* case */ |
1343 |
return; |
return; |
1344 |
} |
} |
1345 |
|
|
1346 |
BitstreamPutBits(bs, 1, 1); // vop_coded |
BitstreamPutBits(bs, 1, 1); // vop_coded |
1347 |
|
|
1348 |
if (frame->coding_type == P_VOP) |
if ( (frame->coding_type == P_VOP) || (frame->coding_type == S_VOP) ) |
1349 |
BitstreamPutBits(bs, frame->rounding_type, 1); |
BitstreamPutBits(bs, frame->rounding_type, 1); |
1350 |
|
|
1351 |
|
if ((pParam->global & XVID_GLOBAL_REDUCED)) |
1352 |
|
BitstreamPutBit(bs, (frame->global_flags & XVID_REDUCED)?1:0); |
1353 |
|
|
1354 |
BitstreamPutBits(bs, 0, 3); // intra_dc_vlc_threshold |
BitstreamPutBits(bs, 0, 3); // intra_dc_vlc_threshold |
1355 |
|
|
1356 |
if (frame->global_flags & XVID_INTERLACING) { |
if (frame->global_flags & XVID_INTERLACING) { |
1357 |
BitstreamPutBit(bs, 1); // top field first |
BitstreamPutBit(bs, (frame->global_flags & XVID_TOPFIELDFIRST)); |
1358 |
BitstreamPutBit(bs, 0); // alternate vertical scan |
BitstreamPutBit(bs, (frame->global_flags & XVID_ALTERNATESCAN)); |
1359 |
} |
} |
1360 |
|
|
1361 |
|
if (frame->coding_type == S_VOP) { |
1362 |
|
if (1) { // no_of_sprite_warping_points>=1 (we use 2!) |
1363 |
|
int k; |
1364 |
|
for (k=0;k<2;k++) |
1365 |
|
{ |
1366 |
|
bs_put_spritetrajectory(bs, frame->warp.duv[k].x ); // du[k] |
1367 |
|
WRITE_MARKER(); |
1368 |
|
|
1369 |
|
bs_put_spritetrajectory(bs, frame->warp.duv[k].y ); // dv[k] |
1370 |
|
WRITE_MARKER(); |
1371 |
|
|
1372 |
|
if (pParam->m_quarterpel) |
1373 |
|
{ |
1374 |
|
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i) *QPEL*", k, frame->warp.duv[k].x/2, frame->warp.duv[k].y/2); |
1375 |
|
} |
1376 |
|
else |
1377 |
|
{ |
1378 |
|
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i)", k, frame->warp.duv[k].x, frame->warp.duv[k].y); |
1379 |
|
} |
1380 |
|
} |
1381 |
|
} |
1382 |
|
} |
1383 |
|
|
1384 |
|
|
1385 |
|
DPRINTF(DPRINTF_HEADER, "quant = %i", frame->quant); |
1386 |
|
|
1387 |
BitstreamPutBits(bs, frame->quant, 5); // quantizer |
BitstreamPutBits(bs, frame->quant, 5); // quantizer |
1388 |
|
|
1389 |
if (frame->coding_type != I_VOP) |
if (frame->coding_type != I_VOP) |
1394 |
|
|
1395 |
} |
} |
1396 |
|
|
|
|
|
1397 |
void |
void |
1398 |
BitstreamWriteUserData(Bitstream * const bs, |
BitstreamWriteUserData(Bitstream * const bs, |
1399 |
uint8_t * data, |
uint8_t * data, |