3 * Copyright (c) 2000,2001 Fabrice Bellard.
4 * Copyright (c) 2002-2004 Michael Niedermayer
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
28 #include "mpegvideo.h"
32 #define DC_VLC_BITS 14 //FIXME find a better solution
34 static const uint16_t rv_lum_code[256] =
36 0x3e7f, 0x0f00, 0x0f01, 0x0f02, 0x0f03, 0x0f04, 0x0f05, 0x0f06,
37 0x0f07, 0x0f08, 0x0f09, 0x0f0a, 0x0f0b, 0x0f0c, 0x0f0d, 0x0f0e,
38 0x0f0f, 0x0f10, 0x0f11, 0x0f12, 0x0f13, 0x0f14, 0x0f15, 0x0f16,
39 0x0f17, 0x0f18, 0x0f19, 0x0f1a, 0x0f1b, 0x0f1c, 0x0f1d, 0x0f1e,
40 0x0f1f, 0x0f20, 0x0f21, 0x0f22, 0x0f23, 0x0f24, 0x0f25, 0x0f26,
41 0x0f27, 0x0f28, 0x0f29, 0x0f2a, 0x0f2b, 0x0f2c, 0x0f2d, 0x0f2e,
42 0x0f2f, 0x0f30, 0x0f31, 0x0f32, 0x0f33, 0x0f34, 0x0f35, 0x0f36,
43 0x0f37, 0x0f38, 0x0f39, 0x0f3a, 0x0f3b, 0x0f3c, 0x0f3d, 0x0f3e,
44 0x0f3f, 0x0380, 0x0381, 0x0382, 0x0383, 0x0384, 0x0385, 0x0386,
45 0x0387, 0x0388, 0x0389, 0x038a, 0x038b, 0x038c, 0x038d, 0x038e,
46 0x038f, 0x0390, 0x0391, 0x0392, 0x0393, 0x0394, 0x0395, 0x0396,
47 0x0397, 0x0398, 0x0399, 0x039a, 0x039b, 0x039c, 0x039d, 0x039e,
48 0x039f, 0x00c0, 0x00c1, 0x00c2, 0x00c3, 0x00c4, 0x00c5, 0x00c6,
49 0x00c7, 0x00c8, 0x00c9, 0x00ca, 0x00cb, 0x00cc, 0x00cd, 0x00ce,
50 0x00cf, 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056,
51 0x0057, 0x0020, 0x0021, 0x0022, 0x0023, 0x000c, 0x000d, 0x0004,
52 0x0000, 0x0005, 0x000e, 0x000f, 0x0024, 0x0025, 0x0026, 0x0027,
53 0x0058, 0x0059, 0x005a, 0x005b, 0x005c, 0x005d, 0x005e, 0x005f,
54 0x00d0, 0x00d1, 0x00d2, 0x00d3, 0x00d4, 0x00d5, 0x00d6, 0x00d7,
55 0x00d8, 0x00d9, 0x00da, 0x00db, 0x00dc, 0x00dd, 0x00de, 0x00df,
56 0x03a0, 0x03a1, 0x03a2, 0x03a3, 0x03a4, 0x03a5, 0x03a6, 0x03a7,
57 0x03a8, 0x03a9, 0x03aa, 0x03ab, 0x03ac, 0x03ad, 0x03ae, 0x03af,
58 0x03b0, 0x03b1, 0x03b2, 0x03b3, 0x03b4, 0x03b5, 0x03b6, 0x03b7,
59 0x03b8, 0x03b9, 0x03ba, 0x03bb, 0x03bc, 0x03bd, 0x03be, 0x03bf,
60 0x0f40, 0x0f41, 0x0f42, 0x0f43, 0x0f44, 0x0f45, 0x0f46, 0x0f47,
61 0x0f48, 0x0f49, 0x0f4a, 0x0f4b, 0x0f4c, 0x0f4d, 0x0f4e, 0x0f4f,
62 0x0f50, 0x0f51, 0x0f52, 0x0f53, 0x0f54, 0x0f55, 0x0f56, 0x0f57,
63 0x0f58, 0x0f59, 0x0f5a, 0x0f5b, 0x0f5c, 0x0f5d, 0x0f5e, 0x0f5f,
64 0x0f60, 0x0f61, 0x0f62, 0x0f63, 0x0f64, 0x0f65, 0x0f66, 0x0f67,
65 0x0f68, 0x0f69, 0x0f6a, 0x0f6b, 0x0f6c, 0x0f6d, 0x0f6e, 0x0f6f,
66 0x0f70, 0x0f71, 0x0f72, 0x0f73, 0x0f74, 0x0f75, 0x0f76, 0x0f77,
67 0x0f78, 0x0f79, 0x0f7a, 0x0f7b, 0x0f7c, 0x0f7d, 0x0f7e, 0x0f7f,
70 static const uint8_t rv_lum_bits[256] =
72 14, 12, 12, 12, 12, 12, 12, 12,
73 12, 12, 12, 12, 12, 12, 12, 12,
74 12, 12, 12, 12, 12, 12, 12, 12,
75 12, 12, 12, 12, 12, 12, 12, 12,
76 12, 12, 12, 12, 12, 12, 12, 12,
77 12, 12, 12, 12, 12, 12, 12, 12,
78 12, 12, 12, 12, 12, 12, 12, 12,
79 12, 12, 12, 12, 12, 12, 12, 12,
80 12, 10, 10, 10, 10, 10, 10, 10,
81 10, 10, 10, 10, 10, 10, 10, 10,
82 10, 10, 10, 10, 10, 10, 10, 10,
83 10, 10, 10, 10, 10, 10, 10, 10,
84 10, 8, 8, 8, 8, 8, 8, 8,
85 8, 8, 8, 8, 8, 8, 8, 8,
86 8, 7, 7, 7, 7, 7, 7, 7,
87 7, 6, 6, 6, 6, 5, 5, 4,
88 2, 4, 5, 5, 6, 6, 6, 6,
89 7, 7, 7, 7, 7, 7, 7, 7,
90 8, 8, 8, 8, 8, 8, 8, 8,
91 8, 8, 8, 8, 8, 8, 8, 8,
92 10, 10, 10, 10, 10, 10, 10, 10,
93 10, 10, 10, 10, 10, 10, 10, 10,
94 10, 10, 10, 10, 10, 10, 10, 10,
95 10, 10, 10, 10, 10, 10, 10, 10,
96 12, 12, 12, 12, 12, 12, 12, 12,
97 12, 12, 12, 12, 12, 12, 12, 12,
98 12, 12, 12, 12, 12, 12, 12, 12,
99 12, 12, 12, 12, 12, 12, 12, 12,
100 12, 12, 12, 12, 12, 12, 12, 12,
101 12, 12, 12, 12, 12, 12, 12, 12,
102 12, 12, 12, 12, 12, 12, 12, 12,
103 12, 12, 12, 12, 12, 12, 12, 12,
106 static const uint16_t rv_chrom_code[256] =
108 0xfe7f, 0x3f00, 0x3f01, 0x3f02, 0x3f03, 0x3f04, 0x3f05, 0x3f06,
109 0x3f07, 0x3f08, 0x3f09, 0x3f0a, 0x3f0b, 0x3f0c, 0x3f0d, 0x3f0e,
110 0x3f0f, 0x3f10, 0x3f11, 0x3f12, 0x3f13, 0x3f14, 0x3f15, 0x3f16,
111 0x3f17, 0x3f18, 0x3f19, 0x3f1a, 0x3f1b, 0x3f1c, 0x3f1d, 0x3f1e,
112 0x3f1f, 0x3f20, 0x3f21, 0x3f22, 0x3f23, 0x3f24, 0x3f25, 0x3f26,
113 0x3f27, 0x3f28, 0x3f29, 0x3f2a, 0x3f2b, 0x3f2c, 0x3f2d, 0x3f2e,
114 0x3f2f, 0x3f30, 0x3f31, 0x3f32, 0x3f33, 0x3f34, 0x3f35, 0x3f36,
115 0x3f37, 0x3f38, 0x3f39, 0x3f3a, 0x3f3b, 0x3f3c, 0x3f3d, 0x3f3e,
116 0x3f3f, 0x0f80, 0x0f81, 0x0f82, 0x0f83, 0x0f84, 0x0f85, 0x0f86,
117 0x0f87, 0x0f88, 0x0f89, 0x0f8a, 0x0f8b, 0x0f8c, 0x0f8d, 0x0f8e,
118 0x0f8f, 0x0f90, 0x0f91, 0x0f92, 0x0f93, 0x0f94, 0x0f95, 0x0f96,
119 0x0f97, 0x0f98, 0x0f99, 0x0f9a, 0x0f9b, 0x0f9c, 0x0f9d, 0x0f9e,
120 0x0f9f, 0x03c0, 0x03c1, 0x03c2, 0x03c3, 0x03c4, 0x03c5, 0x03c6,
121 0x03c7, 0x03c8, 0x03c9, 0x03ca, 0x03cb, 0x03cc, 0x03cd, 0x03ce,
122 0x03cf, 0x00e0, 0x00e1, 0x00e2, 0x00e3, 0x00e4, 0x00e5, 0x00e6,
123 0x00e7, 0x0030, 0x0031, 0x0032, 0x0033, 0x0008, 0x0009, 0x0002,
124 0x0000, 0x0003, 0x000a, 0x000b, 0x0034, 0x0035, 0x0036, 0x0037,
125 0x00e8, 0x00e9, 0x00ea, 0x00eb, 0x00ec, 0x00ed, 0x00ee, 0x00ef,
126 0x03d0, 0x03d1, 0x03d2, 0x03d3, 0x03d4, 0x03d5, 0x03d6, 0x03d7,
127 0x03d8, 0x03d9, 0x03da, 0x03db, 0x03dc, 0x03dd, 0x03de, 0x03df,
128 0x0fa0, 0x0fa1, 0x0fa2, 0x0fa3, 0x0fa4, 0x0fa5, 0x0fa6, 0x0fa7,
129 0x0fa8, 0x0fa9, 0x0faa, 0x0fab, 0x0fac, 0x0fad, 0x0fae, 0x0faf,
130 0x0fb0, 0x0fb1, 0x0fb2, 0x0fb3, 0x0fb4, 0x0fb5, 0x0fb6, 0x0fb7,
131 0x0fb8, 0x0fb9, 0x0fba, 0x0fbb, 0x0fbc, 0x0fbd, 0x0fbe, 0x0fbf,
132 0x3f40, 0x3f41, 0x3f42, 0x3f43, 0x3f44, 0x3f45, 0x3f46, 0x3f47,
133 0x3f48, 0x3f49, 0x3f4a, 0x3f4b, 0x3f4c, 0x3f4d, 0x3f4e, 0x3f4f,
134 0x3f50, 0x3f51, 0x3f52, 0x3f53, 0x3f54, 0x3f55, 0x3f56, 0x3f57,
135 0x3f58, 0x3f59, 0x3f5a, 0x3f5b, 0x3f5c, 0x3f5d, 0x3f5e, 0x3f5f,
136 0x3f60, 0x3f61, 0x3f62, 0x3f63, 0x3f64, 0x3f65, 0x3f66, 0x3f67,
137 0x3f68, 0x3f69, 0x3f6a, 0x3f6b, 0x3f6c, 0x3f6d, 0x3f6e, 0x3f6f,
138 0x3f70, 0x3f71, 0x3f72, 0x3f73, 0x3f74, 0x3f75, 0x3f76, 0x3f77,
139 0x3f78, 0x3f79, 0x3f7a, 0x3f7b, 0x3f7c, 0x3f7d, 0x3f7e, 0x3f7f,
142 static const uint8_t rv_chrom_bits[256] =
144 16, 14, 14, 14, 14, 14, 14, 14,
145 14, 14, 14, 14, 14, 14, 14, 14,
146 14, 14, 14, 14, 14, 14, 14, 14,
147 14, 14, 14, 14, 14, 14, 14, 14,
148 14, 14, 14, 14, 14, 14, 14, 14,
149 14, 14, 14, 14, 14, 14, 14, 14,
150 14, 14, 14, 14, 14, 14, 14, 14,
151 14, 14, 14, 14, 14, 14, 14, 14,
152 14, 12, 12, 12, 12, 12, 12, 12,
153 12, 12, 12, 12, 12, 12, 12, 12,
154 12, 12, 12, 12, 12, 12, 12, 12,
155 12, 12, 12, 12, 12, 12, 12, 12,
156 12, 10, 10, 10, 10, 10, 10, 10,
157 10, 10, 10, 10, 10, 10, 10, 10,
158 10, 8, 8, 8, 8, 8, 8, 8,
159 8, 6, 6, 6, 6, 4, 4, 3,
160 2, 3, 4, 4, 6, 6, 6, 6,
161 8, 8, 8, 8, 8, 8, 8, 8,
162 10, 10, 10, 10, 10, 10, 10, 10,
163 10, 10, 10, 10, 10, 10, 10, 10,
164 12, 12, 12, 12, 12, 12, 12, 12,
165 12, 12, 12, 12, 12, 12, 12, 12,
166 12, 12, 12, 12, 12, 12, 12, 12,
167 12, 12, 12, 12, 12, 12, 12, 12,
168 14, 14, 14, 14, 14, 14, 14, 14,
169 14, 14, 14, 14, 14, 14, 14, 14,
170 14, 14, 14, 14, 14, 14, 14, 14,
171 14, 14, 14, 14, 14, 14, 14, 14,
172 14, 14, 14, 14, 14, 14, 14, 14,
173 14, 14, 14, 14, 14, 14, 14, 14,
174 14, 14, 14, 14, 14, 14, 14, 14,
175 14, 14, 14, 14, 14, 14, 14, 14,
178 static VLC rv_dc_lum, rv_dc_chrom;
180 int rv_decode_dc(MpegEncContext *s, int n)
185 code = get_vlc2(&s->gb, rv_dc_lum.table, DC_VLC_BITS, 2);
187 /* XXX: I don't understand why they use LONGER codes than
188 necessary. The following code would be completely useless
189 if they had thought about it !!! */
190 code = get_bits(&s->gb, 7);
192 code = (int8_t)(get_bits(&s->gb, 7) + 1);
193 } else if (code == 0x7d) {
194 code = -128 + get_bits(&s->gb, 7);
195 } else if (code == 0x7e) {
196 if (get_bits(&s->gb, 1) == 0)
197 code = (int8_t)(get_bits(&s->gb, 8) + 1);
199 code = (int8_t)(get_bits(&s->gb, 8));
200 } else if (code == 0x7f) {
201 get_bits(&s->gb, 11);
208 code = get_vlc2(&s->gb, rv_dc_chrom.table, DC_VLC_BITS, 2);
211 code = get_bits(&s->gb, 9);
213 code = (int8_t)(get_bits(&s->gb, 7) + 1);
214 } else if (code == 0x1fd) {
215 code = -128 + get_bits(&s->gb, 7);
216 } else if (code == 0x1fe) {
220 av_log(s->avctx, AV_LOG_ERROR, "chroma dc error\n");
230 #ifdef CONFIG_ENCODERS
232 /* write RV 1.0 compatible frame header */
233 void rv10_encode_picture_header(MpegEncContext *s, int picture_number)
237 align_put_bits(&s->pb);
239 put_bits(&s->pb, 1, 1); /* marker */
241 put_bits(&s->pb, 1, (s->pict_type == P_TYPE));
243 put_bits(&s->pb, 1, 0); /* not PB frame */
245 put_bits(&s->pb, 5, s->qscale);
247 if (s->pict_type == I_TYPE) {
248 /* specific MPEG like DC coding not used */
250 /* if multiple packets per frame are sent, the position at which
251 to display the macro blocks is coded here */
253 put_bits(&s->pb, 6, 0); /* mb_x */
254 put_bits(&s->pb, 6, 0); /* mb_y */
255 put_bits(&s->pb, 12, s->mb_width * s->mb_height);
258 put_bits(&s->pb, 3, 0); /* ignored */
261 void rv20_encode_picture_header(MpegEncContext *s, int picture_number){
262 put_bits(&s->pb, 2, s->pict_type); //I 0 vs. 1 ?
263 put_bits(&s->pb, 1, 0); /* unknown bit */
264 put_bits(&s->pb, 5, s->qscale);
266 put_bits(&s->pb, 8, picture_number&0xFF); //FIXME wrong, but correct is not known
268 ff_h263_encode_mba(s);
270 put_bits(&s->pb, 1, s->no_rounding);
272 assert(s->f_code == 1);
273 assert(s->unrestricted_mv == 1);
274 // assert(s->h263_aic== (s->pict_type == I_TYPE));
275 assert(s->alt_inter_vlc == 0);
276 assert(s->umvplus == 0);
277 assert(s->modified_quant==1);
278 assert(s->loop_filter==1);
280 s->h263_aic= s->pict_type == I_TYPE;
283 s->c_dc_scale_table= ff_aic_dc_scale_table;
286 s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
290 #if 0 /* unused, remove? */
291 static int get_num(GetBitContext *gb)
295 n = get_bits(gb, 16);
299 n1 = get_bits(gb, 16);
300 return (n << 16) | n1;
305 #endif //CONFIG_ENCODERS
307 /* read RV 1.0 compatible frame header */
308 static int rv10_decode_picture_header(MpegEncContext *s)
310 int mb_count, pb_frame, marker, unk, mb_xy;
312 //printf("ff:%d\n", full_frame);
313 marker = get_bits(&s->gb, 1);
315 if (get_bits(&s->gb, 1))
316 s->pict_type = P_TYPE;
318 s->pict_type = I_TYPE;
319 //printf("h:%X ver:%d\n",h,s->rv10_version);
320 if(!marker) av_log(s->avctx, AV_LOG_ERROR, "marker missing\n");
321 pb_frame = get_bits(&s->gb, 1);
324 printf("pict_type=%d pb_frame=%d\n", s->pict_type, pb_frame);
328 av_log(s->avctx, AV_LOG_ERROR, "pb frame not supported\n");
332 s->qscale = get_bits(&s->gb, 5);
334 av_log(s->avctx, AV_LOG_ERROR, "error, qscale:0\n");
338 if (s->pict_type == I_TYPE) {
339 if (s->rv10_version == 3) {
340 /* specific MPEG like DC coding not used */
341 s->last_dc[0] = get_bits(&s->gb, 8);
342 s->last_dc[1] = get_bits(&s->gb, 8);
343 s->last_dc[2] = get_bits(&s->gb, 8);
345 printf("DC:%d %d %d\n",
352 /* if multiple packets per frame are sent, the position at which
353 to display the macro blocks is coded here */
355 mb_xy= s->mb_x + s->mb_y*s->mb_width;
356 if(show_bits(&s->gb, 12)==0 || (mb_xy && mb_xy < s->mb_num)){
357 s->mb_x = get_bits(&s->gb, 6); /* mb_x */
358 s->mb_y = get_bits(&s->gb, 6); /* mb_y */
359 mb_count = get_bits(&s->gb, 12);
363 mb_count = s->mb_width * s->mb_height;
365 unk= get_bits(&s->gb, 3); /* ignored */
366 //printf("%d\n", unk);
368 s->unrestricted_mv = 1;
373 static int rv20_decode_picture_header(MpegEncContext *s)
378 GetBitContext gb= s->gb;
380 av_log(s->avctx, AV_LOG_DEBUG, "%d", get_bits1(&gb));
381 if(i%4==3) av_log(s->avctx, AV_LOG_DEBUG, " ");
383 av_log(s->avctx, AV_LOG_DEBUG, "\n");
386 for(i=0; i<s->avctx->extradata_size; i++){
387 av_log(s->avctx, AV_LOG_DEBUG, "%2X ", ((uint8_t*)s->avctx->extradata)[i]);
388 if(i%4==3) av_log(s->avctx, AV_LOG_DEBUG, " ");
390 av_log(s->avctx, AV_LOG_DEBUG, "\n");
393 if(s->avctx->sub_id == 0x30202002 || s->avctx->sub_id == 0x30203002){
394 if (get_bits(&s->gb, 3)){
395 av_log(s->avctx, AV_LOG_ERROR, "unknown triplet set\n");
400 i= get_bits(&s->gb, 2);
402 case 0: s->pict_type= I_TYPE; break;
403 case 1: s->pict_type= I_TYPE; break; //hmm ...
404 case 2: s->pict_type= P_TYPE; break;
405 case 3: s->pict_type= B_TYPE; break;
407 av_log(s->avctx, AV_LOG_ERROR, "unknown frame type\n");
411 if(s->last_picture_ptr==NULL && s->pict_type==B_TYPE){
412 av_log(s->avctx, AV_LOG_ERROR, "early B pix\n");
416 if (get_bits(&s->gb, 1)){
417 av_log(s->avctx, AV_LOG_ERROR, "unknown bit set\n");
421 s->qscale = get_bits(&s->gb, 5);
423 av_log(s->avctx, AV_LOG_ERROR, "error, qscale:0\n");
426 if(s->avctx->sub_id == 0x30203002){
427 if (get_bits(&s->gb, 1)){
428 av_log(s->avctx, AV_LOG_ERROR, "unknown bit2 set\n");
433 if(s->avctx->has_b_frames){
435 int v= s->avctx->extradata_size >= 4 ? ((uint8_t*)s->avctx->extradata)[1] : 0;
437 if (get_bits(&s->gb, 1)){
438 av_log(s->avctx, AV_LOG_ERROR, "unknown bit3 set\n");
441 seq= get_bits(&s->gb, 14)<<1;
443 if(v>1 || (s->avctx->sub_id < 0x20201002 && v>0)){
444 f= get_bits(&s->gb, av_log2(v-1)+1);
447 if(s->avctx->debug & FF_DEBUG_PICT_INFO){
448 av_log(s->avctx, AV_LOG_DEBUG, "F %d/%d\n", f, v);
451 mb_pos= get_bits(&s->gb, av_log2(s->mb_num-1)+1);
452 s->mb_x= mb_pos % s->mb_width;
453 s->mb_y= mb_pos / s->mb_width;
455 seq= get_bits(&s->gb, 8)*128;
456 mb_pos= ff_h263_decode_mba(s);
458 //av_log(s->avctx, AV_LOG_DEBUG, "%d\n", seq);
459 seq |= s->time &~0x7FFF;
460 if(seq - s->time > 0x4000) seq -= 0x8000;
461 if(seq - s->time < -0x4000) seq += 0x8000;
463 if(s->pict_type!=B_TYPE){
465 s->pp_time= s->time - s->last_non_b_time;
466 s->last_non_b_time= s->time;
469 s->pb_time= s->pp_time - (s->last_non_b_time - s->time);
470 if(s->pp_time <=s->pb_time || s->pp_time <= s->pp_time - s->pb_time || s->pp_time<=0){
471 av_log(s->avctx, AV_LOG_DEBUG, "messed up order, seeking?, skiping current b frame\n");
476 // printf("%d %d %d %d %d\n", seq, (int)s->time, (int)s->last_non_b_time, s->pp_time, s->pb_time);
477 /*for(i=0; i<32; i++){
478 av_log(s->avctx, AV_LOG_DEBUG, "%d", get_bits1(&s->gb));
480 av_log(s->avctx, AV_LOG_DEBUG, "\n");*/
481 s->no_rounding= get_bits1(&s->gb);
484 s->unrestricted_mv = 1;
485 s->h263_aic= s->pict_type == I_TYPE;
486 // s->alt_inter_vlc=1;
492 if(s->avctx->debug & FF_DEBUG_PICT_INFO){
493 av_log(s->avctx, AV_LOG_INFO, "num:%5d x:%2d y:%2d type:%d qscale:%2d rnd:%d\n",
494 seq, s->mb_x, s->mb_y, s->pict_type, s->qscale, s->no_rounding);
497 assert(s->pict_type != B_TYPE || !s->low_delay);
499 return s->mb_width*s->mb_height - mb_pos;
502 static int rv10_decode_init(AVCodecContext *avctx)
504 MpegEncContext *s = avctx->priv_data;
507 MPV_decode_defaults(s);
510 s->out_format = FMT_H263;
511 s->codec_id= avctx->codec_id;
513 s->width = avctx->width;
514 s->height = avctx->height;
516 switch(avctx->sub_id){
519 s->h263_long_vectors=0;
524 s->h263_long_vectors=1;
530 s->h263_long_vectors=1;
535 s->h263_long_vectors=0;
550 s->avctx->has_b_frames=1;
553 av_log(s->avctx, AV_LOG_ERROR, "unknown header %X\n", avctx->sub_id);
556 if(avctx->debug & FF_DEBUG_PICT_INFO){
557 av_log(avctx, AV_LOG_DEBUG, "ver:%X ver0:%X\n", avctx->sub_id, avctx->extradata_size >= 4 ? ((uint32_t*)avctx->extradata)[0] : -1);
560 if (MPV_common_init(s) < 0)
563 h263_decode_init_vlc(s);
567 init_vlc(&rv_dc_lum, DC_VLC_BITS, 256,
569 rv_lum_code, 2, 2, 1);
570 init_vlc(&rv_dc_chrom, DC_VLC_BITS, 256,
572 rv_chrom_code, 2, 2, 1);
576 avctx->pix_fmt = PIX_FMT_YUV420P;
581 static int rv10_decode_end(AVCodecContext *avctx)
583 MpegEncContext *s = avctx->priv_data;
589 static int rv10_decode_packet(AVCodecContext *avctx,
590 uint8_t *buf, int buf_size)
592 MpegEncContext *s = avctx->priv_data;
593 int mb_count, mb_pos, left;
595 init_get_bits(&s->gb, buf, buf_size*8);
596 if(s->codec_id ==CODEC_ID_RV10)
597 mb_count = rv10_decode_picture_header(s);
599 mb_count = rv20_decode_picture_header(s);
601 av_log(s->avctx, AV_LOG_ERROR, "HEADER ERROR\n");
605 if (s->mb_x >= s->mb_width ||
606 s->mb_y >= s->mb_height) {
607 av_log(s->avctx, AV_LOG_ERROR, "POS ERROR %d %d\n", s->mb_x, s->mb_y);
610 mb_pos = s->mb_y * s->mb_width + s->mb_x;
611 left = s->mb_width * s->mb_height - mb_pos;
612 if (mb_count > left) {
613 av_log(s->avctx, AV_LOG_ERROR, "COUNT ERROR\n");
616 //if(s->pict_type == P_TYPE) return 0;
618 if ((s->mb_x == 0 && s->mb_y == 0) || s->current_picture_ptr==NULL) {
619 if(MPV_frame_start(s, avctx) < 0)
624 printf("qscale=%d\n", s->qscale);
627 /* default quantization values */
628 if(s->codec_id== CODEC_ID_RV10){
629 if(s->mb_y==0) s->first_slice_line=1;
631 s->first_slice_line=1;
632 s->resync_mb_x= s->mb_x;
633 s->resync_mb_y= s->mb_y;
637 s->c_dc_scale_table= ff_aic_dc_scale_table;
640 s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
643 if(s->modified_quant)
644 s->chroma_qscale_table= ff_h263_chroma_qscale_table;
646 ff_set_qscale(s, s->qscale);
648 s->rv10_first_dc_coded[0] = 0;
649 s->rv10_first_dc_coded[1] = 0;
650 s->rv10_first_dc_coded[2] = 0;
651 //printf("%d %X %X\n", s->pict_type, s->current_picture.motion_val[0], s->current_picture.motion_val[1]);
655 s->block_wrap[3]= s->b8_stride;
657 s->block_wrap[5]= s->mb_stride;
658 ff_init_block_index(s);
659 /* decode each macroblock */
661 for(s->mb_num_left= mb_count; s->mb_num_left>0; s->mb_num_left--) {
663 ff_update_block_index(s);
665 printf("**mb x=%d y=%d\n", s->mb_x, s->mb_y);
668 s->dsp.clear_blocks(s->block[0]);
669 s->mv_dir = MV_DIR_FORWARD;
670 s->mv_type = MV_TYPE_16X16;
671 ret=ff_h263_decode_mb(s, s->block);
673 if (ret == SLICE_ERROR) {
674 av_log(s->avctx, AV_LOG_ERROR, "ERROR at MB %d %d\n", s->mb_x, s->mb_y);
677 if(s->pict_type != B_TYPE)
678 ff_h263_update_motion_val(s);
679 MPV_decode_mb(s, s->block);
681 ff_h263_loop_filter(s);
683 if (++s->mb_x == s->mb_width) {
686 ff_init_block_index(s);
688 if(s->mb_x == s->resync_mb_x)
689 s->first_slice_line=0;
690 if(ret == SLICE_END) break;
696 static int rv10_decode_frame(AVCodecContext *avctx,
697 void *data, int *data_size,
698 uint8_t *buf, int buf_size)
700 MpegEncContext *s = avctx->priv_data;
702 AVFrame *pict = data;
705 printf("*****frame %d size=%d\n", avctx->frame_number, buf_size);
708 /* no supplementary picture */
713 if(avctx->slice_count){
714 for(i=0; i<avctx->slice_count; i++){
715 int offset= avctx->slice_offset[i];
718 if(i+1 == avctx->slice_count)
719 size= buf_size - offset;
721 size= avctx->slice_offset[i+1] - offset;
723 if( rv10_decode_packet(avctx, buf+offset, size) < 0 )
727 if( rv10_decode_packet(avctx, buf, buf_size) < 0 )
731 if(s->mb_y>=s->mb_height){
734 if(s->pict_type==B_TYPE || s->low_delay){
735 *pict= *(AVFrame*)&s->current_picture;
736 ff_print_debug_info(s, pict);
738 *pict= *(AVFrame*)&s->last_picture;
739 ff_print_debug_info(s, pict);
741 if(s->last_picture_ptr || s->low_delay)
742 *data_size = sizeof(AVFrame);
748 AVCodec rv10_decoder = {
752 sizeof(MpegEncContext),
760 AVCodec rv20_decoder = {
764 sizeof(MpegEncContext),
769 CODEC_CAP_DR1 | CODEC_CAP_DELAY,
770 .flush= ff_mpeg_flush,