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 static int get_num(GetBitContext *gb)
265 n = get_bits(gb, 16);
269 n1 = get_bits(gb, 16);
270 return (n << 16) | n1;
274 #endif //CONFIG_ENCODERS
276 /* read RV 1.0 compatible frame header */
277 static int rv10_decode_picture_header(MpegEncContext *s)
279 int mb_count, pb_frame, marker, full_frame, unk;
281 full_frame= s->avctx->slice_count==1;
282 //printf("ff:%d\n", full_frame);
283 marker = get_bits(&s->gb, 1);
285 if (get_bits(&s->gb, 1))
286 s->pict_type = P_TYPE;
288 s->pict_type = I_TYPE;
289 //printf("h:%X ver:%d\n",h,s->rv10_version);
290 if(!marker) av_log(s->avctx, AV_LOG_ERROR, "marker missing\n");
291 pb_frame = get_bits(&s->gb, 1);
294 printf("pict_type=%d pb_frame=%d\n", s->pict_type, pb_frame);
298 av_log(s->avctx, AV_LOG_ERROR, "pb frame not supported\n");
302 s->qscale = get_bits(&s->gb, 5);
304 av_log(s->avctx, AV_LOG_ERROR, "error, qscale:0\n");
308 if (s->pict_type == I_TYPE) {
309 if (s->rv10_version == 3) {
310 /* specific MPEG like DC coding not used */
311 s->last_dc[0] = get_bits(&s->gb, 8);
312 s->last_dc[1] = get_bits(&s->gb, 8);
313 s->last_dc[2] = get_bits(&s->gb, 8);
315 printf("DC:%d %d %d\n",
322 /* if multiple packets per frame are sent, the position at which
323 to display the macro blocks is coded here */
324 if ((!full_frame) || show_bits(&s->gb, 12)==0) {
325 s->mb_x = get_bits(&s->gb, 6); /* mb_x */
326 s->mb_y = get_bits(&s->gb, 6); /* mb_y */
327 mb_count = get_bits(&s->gb, 12);
331 mb_count = s->mb_width * s->mb_height;
333 unk= get_bits(&s->gb, 3); /* ignored */
334 //printf("%d\n", unk);
336 s->unrestricted_mv = 1;
341 static int rv20_decode_picture_header(MpegEncContext *s)
345 if(s->avctx->sub_id == 0x30202002 || s->avctx->sub_id == 0x30203002){
346 if (get_bits(&s->gb, 3)){
347 av_log(s->avctx, AV_LOG_ERROR, "unknown triplet set\n");
352 i= get_bits(&s->gb, 2);
354 case 0: s->pict_type= I_TYPE; break;
355 case 1: s->pict_type= I_TYPE; break; //hmm ...
356 case 2: s->pict_type= P_TYPE; break;
357 case 3: s->pict_type= B_TYPE; break;
359 av_log(s->avctx, AV_LOG_ERROR, "unknown frame type\n");
363 if(s->last_picture_ptr==NULL && s->pict_type==B_TYPE){
364 av_log(s->avctx, AV_LOG_ERROR, "early B pix\n");
368 if (get_bits(&s->gb, 1)){
369 av_log(s->avctx, AV_LOG_ERROR, "unknown bit set\n");
373 s->qscale = get_bits(&s->gb, 5);
375 av_log(s->avctx, AV_LOG_ERROR, "error, qscale:0\n");
378 if(s->avctx->sub_id == 0x30203002){
379 if (get_bits(&s->gb, 1)){
380 av_log(s->avctx, AV_LOG_ERROR, "unknown bit2 set\n");
385 if(s->avctx->has_b_frames){
386 if (get_bits(&s->gb, 1)){
387 // av_log(s->avctx, AV_LOG_ERROR, "unknown bit3 set\n");
390 seq= get_bits(&s->gb, 15);
391 if (s->avctx->sub_id == 0x20201002 && 0 && get_bits(&s->gb, 1)){
392 av_log(s->avctx, AV_LOG_ERROR, "unknown bit4 set\n");
395 mb_pos= get_bits(&s->gb, av_log2(s->mb_num-1)+1);
396 s->mb_x= mb_pos % s->mb_width;
397 s->mb_y= mb_pos / s->mb_width;
399 seq= get_bits(&s->gb, 8)*128;
400 mb_pos= ff_h263_decode_mba(s);
402 //av_log(s->avctx, AV_LOG_DEBUG, "%d\n", seq);
403 seq |= s->time &~0x7FFF;
404 if(seq - s->time > 0x4000) seq -= 0x8000;
405 if(seq - s->time < -0x4000) seq += 0x8000;
407 if(s->pict_type!=B_TYPE){
409 s->pp_time= s->time - s->last_non_b_time;
410 s->last_non_b_time= s->time;
413 s->pb_time= s->pp_time - (s->last_non_b_time - s->time);
414 if(s->pp_time <=s->pb_time || s->pp_time <= s->pp_time - s->pb_time || s->pp_time<=0){
415 av_log(s->avctx, AV_LOG_DEBUG, "messed up order, seeking?, skiping current b frame\n");
420 // printf("%d %d %d %d %d\n", seq, (int)s->time, (int)s->last_non_b_time, s->pp_time, s->pb_time);
421 /*for(i=0; i<32; i++){
422 av_log(s->avctx, AV_LOG_DEBUG, "%d", get_bits1(&s->gb));
424 av_log(s->avctx, AV_LOG_DEBUG, "\n");*/
425 s->no_rounding= get_bits1(&s->gb);
428 s->unrestricted_mv = 1;
429 s->h263_aic= s->pict_type == I_TYPE;
430 // s->alt_inter_vlc=1;
436 if(s->avctx->debug & FF_DEBUG_PICT_INFO){
437 av_log(s->avctx, AV_LOG_INFO, "num:%5d x:%2d y:%2d type:%d qscale:%2d rnd:%d\n",
438 seq, s->mb_x, s->mb_y, s->pict_type, s->qscale, s->no_rounding);
441 assert(s->pict_type != B_TYPE || !s->low_delay);
443 return s->mb_width*s->mb_height - mb_pos;
446 static int rv10_decode_init(AVCodecContext *avctx)
448 MpegEncContext *s = avctx->priv_data;
451 MPV_decode_defaults(s);
454 s->out_format = FMT_H263;
455 s->codec_id= avctx->codec_id;
457 s->width = avctx->width;
458 s->height = avctx->height;
460 switch(avctx->sub_id){
463 s->h263_long_vectors=0;
468 s->h263_long_vectors=1;
474 s->h263_long_vectors=1;
479 s->h263_long_vectors=0;
492 s->avctx->has_b_frames=1;
495 av_log(s->avctx, AV_LOG_ERROR, "unknown header %X\n", avctx->sub_id);
497 //printf("ver:%X\n", avctx->sub_id);
498 if (MPV_common_init(s) < 0)
501 h263_decode_init_vlc(s);
505 init_vlc(&rv_dc_lum, DC_VLC_BITS, 256,
508 init_vlc(&rv_dc_chrom, DC_VLC_BITS, 256,
510 rv_chrom_code, 2, 2);
514 avctx->pix_fmt = PIX_FMT_YUV420P;
519 static int rv10_decode_end(AVCodecContext *avctx)
521 MpegEncContext *s = avctx->priv_data;
527 static int rv10_decode_packet(AVCodecContext *avctx,
528 uint8_t *buf, int buf_size)
530 MpegEncContext *s = avctx->priv_data;
531 int mb_count, mb_pos, left;
533 init_get_bits(&s->gb, buf, buf_size*8);
534 if(s->codec_id ==CODEC_ID_RV10)
535 mb_count = rv10_decode_picture_header(s);
537 mb_count = rv20_decode_picture_header(s);
539 av_log(s->avctx, AV_LOG_ERROR, "HEADER ERROR\n");
543 if (s->mb_x >= s->mb_width ||
544 s->mb_y >= s->mb_height) {
545 av_log(s->avctx, AV_LOG_ERROR, "POS ERROR %d %d\n", s->mb_x, s->mb_y);
548 mb_pos = s->mb_y * s->mb_width + s->mb_x;
549 left = s->mb_width * s->mb_height - mb_pos;
550 if (mb_count > left) {
551 av_log(s->avctx, AV_LOG_ERROR, "COUNT ERROR\n");
554 //if(s->pict_type == P_TYPE) return 0;
556 if ((s->mb_x == 0 && s->mb_y == 0) || s->current_picture_ptr==NULL) {
557 if(MPV_frame_start(s, avctx) < 0)
562 printf("qscale=%d\n", s->qscale);
565 /* default quantization values */
566 if(s->codec_id== CODEC_ID_RV10){
567 if(s->mb_y==0) s->first_slice_line=1;
569 s->first_slice_line=1;
570 s->resync_mb_x= s->mb_x;
571 s->resync_mb_y= s->mb_y;
575 s->c_dc_scale_table= ff_aic_dc_scale_table;
578 s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
581 if(s->modified_quant)
582 s->chroma_qscale_table= ff_h263_chroma_qscale_table;
584 ff_set_qscale(s, s->qscale);
586 s->rv10_first_dc_coded[0] = 0;
587 s->rv10_first_dc_coded[1] = 0;
588 s->rv10_first_dc_coded[2] = 0;
589 //printf("%d %X %X\n", s->pict_type, s->current_picture.motion_val[0], s->current_picture.motion_val[1]);
593 s->block_wrap[3]= s->b8_stride;
595 s->block_wrap[5]= s->mb_stride;
596 ff_init_block_index(s);
597 /* decode each macroblock */
599 for(s->mb_num_left= mb_count; s->mb_num_left>0; s->mb_num_left--) {
601 ff_update_block_index(s);
603 printf("**mb x=%d y=%d\n", s->mb_x, s->mb_y);
606 s->dsp.clear_blocks(s->block[0]);
607 s->mv_dir = MV_DIR_FORWARD;
608 s->mv_type = MV_TYPE_16X16;
609 ret=ff_h263_decode_mb(s, s->block);
611 if (ret == SLICE_ERROR) {
612 av_log(s->avctx, AV_LOG_ERROR, "ERROR at MB %d %d\n", s->mb_x, s->mb_y);
615 if(s->pict_type != B_TYPE)
616 ff_h263_update_motion_val(s);
617 MPV_decode_mb(s, s->block);
619 ff_h263_loop_filter(s);
621 if (++s->mb_x == s->mb_width) {
624 ff_init_block_index(s);
626 if(s->mb_x == s->resync_mb_x)
627 s->first_slice_line=0;
628 if(ret == SLICE_END) break;
634 static int rv10_decode_frame(AVCodecContext *avctx,
635 void *data, int *data_size,
636 uint8_t *buf, int buf_size)
638 MpegEncContext *s = avctx->priv_data;
640 AVFrame *pict = data;
643 printf("*****frame %d size=%d\n", avctx->frame_number, buf_size);
646 /* no supplementary picture */
651 if(avctx->slice_count){
652 for(i=0; i<avctx->slice_count; i++){
653 int offset= avctx->slice_offset[i];
656 if(i+1 == avctx->slice_count)
657 size= buf_size - offset;
659 size= avctx->slice_offset[i+1] - offset;
661 if( rv10_decode_packet(avctx, buf+offset, size) < 0 )
665 if( rv10_decode_packet(avctx, buf, buf_size) < 0 )
669 if(s->mb_y>=s->mb_height){
672 if(s->pict_type==B_TYPE || s->low_delay){
673 *pict= *(AVFrame*)&s->current_picture;
674 ff_print_debug_info(s, pict);
676 *pict= *(AVFrame*)&s->last_picture;
677 ff_print_debug_info(s, pict);
680 *data_size = sizeof(AVFrame);
686 AVCodec rv10_decoder = {
690 sizeof(MpegEncContext),
698 AVCodec rv20_decoder = {
702 sizeof(MpegEncContext),