36 |
static uint32_t __inline |
static uint32_t __inline |
37 |
log2bin(uint32_t value) |
log2bin(uint32_t value) |
38 |
{ |
{ |
|
/* Changed by Chenm001 */ |
|
|
#if !defined(_MSC_VER) |
|
39 |
int n = 0; |
int n = 0; |
40 |
|
|
41 |
while (value) { |
while (value) { |
43 |
n++; |
n++; |
44 |
} |
} |
45 |
return n; |
return n; |
|
#else |
|
|
__asm { |
|
|
bsr eax, value |
|
|
inc eax |
|
|
} |
|
|
#endif |
|
46 |
} |
} |
47 |
|
|
48 |
|
|
1014 |
|
|
1015 |
DPRINTF(XVID_DEBUG_STARTCODE, "<user_data>: %s\n", tmp); |
DPRINTF(XVID_DEBUG_STARTCODE, "<user_data>: %s\n", tmp); |
1016 |
|
|
1017 |
|
/* read xvid bitstream version */ |
1018 |
|
if(strncmp(tmp, "XviD", 4) == 0) { |
1019 |
|
sscanf(tmp, "XviD%d", &dec->bs_version); |
1020 |
|
DPRINTF(XVID_DEBUG_HEADER, "xvid bitstream version=%i", dec->bs_version); |
1021 |
|
} |
1022 |
|
|
1023 |
/* divx detection */ |
/* divx detection */ |
1024 |
i = sscanf(tmp, "DivX%dBuild%d%c", &version, &build, &packed); |
i = sscanf(tmp, "DivX%dBuild%d%c", &version, &build, &packed); |
1025 |
if (i < 2) |
if (i < 2) |
1115 |
BitstreamPad(bs); |
BitstreamPad(bs); |
1116 |
BitstreamPutBits(bs, VISOBJ_START_CODE, 32); |
BitstreamPutBits(bs, VISOBJ_START_CODE, 32); |
1117 |
BitstreamPutBits(bs, 0, 1); /* is_visual_object_identifier */ |
BitstreamPutBits(bs, 0, 1); /* is_visual_object_identifier */ |
1118 |
|
|
1119 |
|
/* Video type */ |
1120 |
BitstreamPutBits(bs, VISOBJ_TYPE_VIDEO, 4); /* visual_object_type */ |
BitstreamPutBits(bs, VISOBJ_TYPE_VIDEO, 4); /* visual_object_type */ |
1121 |
|
BitstreamPutBit(bs, 0); /* video_signal_type */ |
1122 |
|
|
1123 |
/* video object_start_code & vo_id */ |
/* video object_start_code & vo_id */ |
1124 |
BitstreamPad(bs); |
BitstreamPadAlways(bs); /* next_start_code() */ |
1125 |
BitstreamPutBits(bs, VIDOBJ_START_CODE|(vo_id&0x5), 32); |
BitstreamPutBits(bs, VIDOBJ_START_CODE|(vo_id&0x5), 32); |
1126 |
|
|
1127 |
/* video_object_layer_start_code & vol_id */ |
/* video_object_layer_start_code & vol_id */ |
1139 |
{ |
{ |
1140 |
BitstreamPutBit(bs, 1); /* is_object_layer_identified */ |
BitstreamPutBit(bs, 1); /* is_object_layer_identified */ |
1141 |
BitstreamPutBits(bs, vol_ver_id, 4); /* vol_ver_id == 2 */ |
BitstreamPutBits(bs, vol_ver_id, 4); /* vol_ver_id == 2 */ |
1142 |
BitstreamPutBits(bs, 4, 3); /* vol_ver_priority (1==lowest, 7==highest) ?? */ |
BitstreamPutBits(bs, 4, 3); /* vol_ver_priority (1==highest, 7==lowest) */ |
1143 |
} |
} |
1144 |
|
|
1145 |
BitstreamPutBits(bs, 1, 4); /* aspect_ratio_info (1=1:1) */ |
BitstreamPutBits(bs, 1, 4); /* aspect_ratio_info (1=1:1) */ |
1188 |
if (vol_ver_id != 1) |
if (vol_ver_id != 1) |
1189 |
{ if ((pParam->vol_flags & XVID_VOL_GMC)) |
{ if ((pParam->vol_flags & XVID_VOL_GMC)) |
1190 |
{ BitstreamPutBits(bs, 2, 2); /* sprite_enable=='GMC' */ |
{ BitstreamPutBits(bs, 2, 2); /* sprite_enable=='GMC' */ |
1191 |
BitstreamPutBits(bs, 2, 6); /* no_of_sprite_warping_points */ |
BitstreamPutBits(bs, 3, 6); /* no_of_sprite_warping_points */ |
1192 |
BitstreamPutBits(bs, 3, 2); /* sprite_warping_accuracy 0==1/2, 1=1/4, 2=1/8, 3=1/16 */ |
BitstreamPutBits(bs, 3, 2); /* sprite_warping_accuracy 0==1/2, 1=1/4, 2=1/8, 3=1/16 */ |
1193 |
BitstreamPutBit(bs, 0); /* sprite_brightness_change (not supported) */ |
BitstreamPutBit(bs, 0); /* sprite_brightness_change (not supported) */ |
1194 |
|
|
1242 |
|
|
1243 |
BitstreamPutBit(bs, 0); /* scalability */ |
BitstreamPutBit(bs, 0); /* scalability */ |
1244 |
|
|
1245 |
|
BitstreamPadAlways(bs); /* next_start_code(); */ |
1246 |
|
|
1247 |
/* fake divx5 id, to ensure compatibility with divx5 decoder */ |
/* fake divx5 id, to ensure compatibility with divx5 decoder */ |
1248 |
#define DIVX5_ID "DivX000b000p" |
#define DIVX5_ID "DivX000b000p" |
1249 |
if (pParam->max_bframes > 0 && (pParam->global_flags & XVID_GLOBAL_PACKED)) { |
if (pParam->max_bframes > 0 && (pParam->global_flags & XVID_GLOBAL_PACKED)) { |
1306 |
|
|
1307 |
if (!vop_coded) { |
if (!vop_coded) { |
1308 |
BitstreamPutBits(bs, 0, 1); |
BitstreamPutBits(bs, 0, 1); |
1309 |
|
#if 0 |
1310 |
|
BitstreamPadAlways(bs); /* next_start_code() */ |
1311 |
|
#endif |
1312 |
|
/* NB: It's up to the function caller to write the next_start_code(). |
1313 |
|
* At the moment encoder.c respects that requisite because a VOP |
1314 |
|
* always ends with a next_start_code either if it's coded or not |
1315 |
|
* and encoder.c terminates a frame with a next_start_code in whatever |
1316 |
|
* case */ |
1317 |
return; |
return; |
1318 |
} |
} |
1319 |
|
|
1335 |
if (frame->coding_type == S_VOP) { |
if (frame->coding_type == S_VOP) { |
1336 |
if (1) { /* no_of_sprite_warping_points>=1 (we use 2!) */ |
if (1) { /* no_of_sprite_warping_points>=1 (we use 2!) */ |
1337 |
int k; |
int k; |
1338 |
for (k=0;k<2;k++) |
for (k=0;k<3;k++) |
1339 |
{ |
{ |
1340 |
bs_put_spritetrajectory(bs, frame->warp.duv[k].x ); /* du[k] */ |
bs_put_spritetrajectory(bs, frame->warp.duv[k].x ); /* du[k] */ |
1341 |
WRITE_MARKER(); |
WRITE_MARKER(); |