48 #define V2_INTRA_CBPC_VLC_BITS 3
49 #define V2_MB_TYPE_VLC_BITS 7
51 #define V2_MV_VLC_BITS 9
52 #define TEX_VLC_BITS 9
54 #define II_BITRATE 128*1024
55 #define MBAC_BITRATE 50*1024
57 #define DEFAULT_INTER_INDEX 3
67 #if CONFIG_ENCODERS //strangely gcc includes this even if it is not referenced
69 #endif //CONFIG_ENCODERS
77 int level, uni_code, uni_len;
79 for(level=-256; level<256; level++){
90 l= (-
level) ^ ((1 << size) - 1);
97 uni_code ^= (1<<uni_len)-1;
100 uni_code<<=
size; uni_code|=l;
103 uni_code<<=1; uni_code|=1;
113 uni_code ^= (1<<uni_len)-1;
116 uni_code<<=
size; uni_code|=l;
119 uni_code<<=1; uni_code|=1;
131 static int initialized=0;
153 #if CONFIG_VC1_DECODER
190 for(i=0;i<tab->n;i++) {
210 int run_diff= intra ? 0 : 1;
250 static int init_done=0;
269 for (level = 1; level <=
MAX_LEVEL; level++) {
271 for(run=0; run<=
MAX_RUN; run++){
273 for(last=0; last<2; last++){
274 rl_length[i][
level][
run][last]= get_size_of_code(s, &
rl_table[ i], last, run, level, 0);
285 int best =-1, best_size =9999999;
286 int chroma_best=-1, best_chroma_size=9999999;
299 for(run=0; run<=
MAX_RUN; run++){
301 const int last_size= size + chroma_size;
302 for(last=0; last<2; last++){
308 size += intra_luma_count *rl_length[i ][
level][
run][last];
309 chroma_size+= intra_chroma_count*rl_length[i+3][
level][
run][last];
311 size+= intra_luma_count *rl_length[i ][
level][
run][last]
312 +intra_chroma_count*rl_length[i+3][
level][
run][last]
313 +inter_count *rl_length[i+3][
level][
run][last];
316 if(last_size == size+chroma_size)
break;
323 if(chroma_size<best_chroma_size){
324 best_chroma_size= chroma_size;
421 #endif //CONFIG_ENCODERS
473 if ((
unsigned)mx >= 64 ||
505 int range, bit_size, sign, code,
bits;
513 range = 1 << bit_size;
526 code = (val >> bit_size) + 1;
527 bits = val & (range - 1);
538 int motion_x,
int motion_y)
540 int cbp, coded_cbp, i;
542 uint8_t *coded_block;
549 for (i = 0; i < 6; i++) {
569 if((cbp&3) != 3) coded_cbp= cbp ^ 0x3C;
579 msmpeg4v2_encode_motion(s, motion_x - pred_x);
580 msmpeg4v2_encode_motion(s, motion_y - pred_y);
596 for (i = 0; i < 6; i++) {
604 for (i = 0; i < 6; i++) {
607 cbp |= val << (5 - i);
614 coded_cbp |= val << (5 - i);
651 for (i = 0; i < 6; i++) {
659 #endif //CONFIG_ENCODERS
662 int32_t **dc_val_ptr)
686 return FASTDIV((sum + (scale>>1)), scale);
691 int16_t **dc_val_ptr,
int *dir_ptr)
710 b = dc_val[ - 1 -
wrap];
721 #if ARCH_X86 && HAVE_7REGS && HAVE_EBX_AVAILABLE
723 "movl %3, %%eax \n\t"
724 "shrl $1, %%eax \n\t"
725 "addl %%eax, %2 \n\t"
726 "addl %%eax, %1 \n\t"
727 "addl %0, %%eax \n\t"
729 "movl %%edx, %0 \n\t"
730 "movl %1, %%eax \n\t"
732 "movl %%edx, %1 \n\t"
733 "movl %2, %%eax \n\t"
735 "movl %%edx, %2 \n\t"
736 :
"+b" (a),
"+c" (b),
"+D" (c)
746 a = (a + (8 >> 1)) / 8;
747 b = (b + (8 >> 1)) / 8;
748 c = (c + (8 >> 1)) / 8;
750 a =
FASTDIV((a + (scale >> 1)), scale);
751 b =
FASTDIV((b + (scale >> 1)), scale);
752 c =
FASTDIV((c + (scale >> 1)), scale);
769 if (abs(a - b) < abs(b - c)) {
784 if(s->
mb_x==0) a= (1024 + (scale>>1))/
scale;
785 else a=
get_dc(dest-8, wrap, scale*8);
786 if(s->
mb_y==0) c= (1024 + (scale>>1))/
scale;
787 else c=
get_dc(dest-8*wrap, wrap, scale*8);
814 if (abs(a - b) < abs(b - c)) {
823 if (abs(a - b) <= abs(b - c)) {
833 *dc_val_ptr = &dc_val[0];
879 extquant = (level + 3) & 0x3;
880 code = ((level+3)>>2);
881 }
else if( s->
qscale == 2 ) {
882 extquant = (level + 1) & 0x1;
883 code = ((level+1)>>1);
902 extrabits = 3 - s->
qscale;
906 else if(extrabits > 0)
920 int level,
run, last, i, j, last_index;
921 int last_non_zero, sign, slevel;
922 int code, run_diff, dc_pred_dir;
924 const uint8_t *scantable;
948 for(last_index=63; last_index>=0; last_index--){
949 if(block[scantable[last_index]])
break;
955 last_non_zero = i - 1;
956 for (; i <= last_index; i++) {
960 run = i - last_non_zero - 1;
961 last = (i == last_index);
1052 int code, val, sign, shift;
1065 val = (val - 1) << shift;
1105 if(code<0 || code>7){
1143 s->
mv[0][0][0] = mx;
1144 s->
mv[0][0][1] = my;
1157 for (i = 0; i < 6; i++) {
1206 int val = ((code >> (5 - i)) & 1);
1212 cbp |= val << (5 - i);
1228 s->
mv[0][0][0] = mx;
1229 s->
mv[0][0][1] = my;
1246 for (i = 0; i < 6; i++) {
1261 static int done = 0;
1372 if(start_code!=0x00000100){
1390 if(!had_i)
return -1;
1525 if(left>=length && left<length+8)
1536 else if(left<length+8)
1578 }
else if (level != 0) {
1609 int n,
int coded,
const uint8_t *scan_table)
1650 if (dc_pred_dir == 0)
1660 qadd = (s->
qscale - 1) | 1;
1729 if(sign) level= -
level;
1732 #if 0 // waste of time / this will detect very few errors
1734 const int abs_level=
FFABS(level);
1735 const int run1= run - rl->
max_run[last][abs_level] - run_diff;
1737 if(abs_level <= rl->max_level[last][run]){
1739 return DECODING_AC_LOST;
1741 if(abs_level <= rl->max_level[last][run]*2){
1743 return DECODING_AC_LOST;
1745 if(run1>=0 && abs_level <= rl->max_level[last][run1]){
1747 return DECODING_AC_LOST;
1753 if (level>0) level= level * qmul + qadd;
1754 else level= level * qmul - qadd;
1755 #if 0 // waste of time too :(
1756 if(level>2048 || level<-2048){
1758 return DECODING_AC_LOST;
1763 #ifdef ERROR_DETAILS
1766 else if((i>62 && i<192) || i>192+63)
1773 i+= run + rl->
max_run[run>>7][level/qmul] + run_diff;
1776 #ifdef ERROR_DETAILS
1779 else if((i>62 && i<192) || i>192+63)
1788 level = level + rl->
max_level[run>>7][(run-1)&63] * qmul;
1791 #ifdef ERROR_DETAILS
1794 else if((i>62 && i<192) || i>192+63)
1802 #ifdef ERROR_DETAILS
1805 else if((i>62 && i<192) || i>192+63)
1822 block[scan_table[i]] =
level;
1826 block[scan_table[i]] =
level;
1844 int *mx_ptr,
int *my_ptr)
1856 if (code == mv->
n) {
1883 .
name =
"msmpeg4v1",
1897 .
name =
"msmpeg4v2",