36 |
static uint32_t __inline |
static uint32_t __inline |
37 |
log2bin(uint32_t value) |
log2bin(uint32_t value) |
38 |
{ |
{ |
|
/* Changed by Chenm001 */ |
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#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; |
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#else |
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__asm { |
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bsr eax, value |
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inc eax |
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} |
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#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 |
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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 |
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} |
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 |
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|
1119 |
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/* 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 */ |
1131 |
BitstreamPutBit(bs, 0); /* random_accessible_vol */ |
BitstreamPutBit(bs, 0); /* random_accessible_vol */ |
1132 |
BitstreamPutBits(bs, vol_type_ind, 8); /* video_object_type_indication */ |
BitstreamPutBits(bs, vol_type_ind, 8); /* video_object_type_indication */ |
1133 |
|
|
1134 |
if (vol_ver_id == 1) |
if (vol_ver_id == 1) { |
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{ |
|
1135 |
BitstreamPutBit(bs, 0); /* is_object_layer_identified (0=not given) */ |
BitstreamPutBit(bs, 0); /* is_object_layer_identified (0=not given) */ |
1136 |
} |
} else { |
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else |
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|
{ |
|
1137 |
BitstreamPutBit(bs, 1); /* is_object_layer_identified */ |
BitstreamPutBit(bs, 1); /* is_object_layer_identified */ |
1138 |
BitstreamPutBits(bs, vol_ver_id, 4); /* vol_ver_id == 2 */ |
BitstreamPutBits(bs, vol_ver_id, 4); /* vol_ver_id == 2 */ |
1139 |
BitstreamPutBits(bs, 4, 3); /* vol_ver_priority (1==lowest, 7==highest) ?? */ |
BitstreamPutBits(bs, 4, 3); /* vol_ver_priority (1==highest, 7==lowest) */ |
1140 |
} |
} |
1141 |
|
|
1142 |
BitstreamPutBits(bs, 1, 4); /* aspect_ratio_info (1=1:1) */ |
/* Aspect ratio */ |
1143 |
|
BitstreamPutBits(bs, pParam->par, 4); /* aspect_ratio_info (1=1:1) */ |
1144 |
|
if(pParam->par == XVID_PAR_EXT) { |
1145 |
|
BitstreamPutBits(bs, pParam->par_width, 8); |
1146 |
|
BitstreamPutBits(bs, pParam->par_height, 8); |
1147 |
|
} |
1148 |
|
|
1149 |
BitstreamPutBit(bs, 1); /* vol_control_parameters */ |
BitstreamPutBit(bs, 1); /* vol_control_parameters */ |
1150 |
BitstreamPutBits(bs, 1, 2); /* chroma_format 1="4:2:0" */ |
BitstreamPutBits(bs, 1, 2); /* chroma_format 1="4:2:0" */ |
1173 |
|
|
1174 |
if (pParam->fincr>0) { |
if (pParam->fincr>0) { |
1175 |
BitstreamPutBit(bs, 1); /* fixed_vop_rate = 1 */ |
BitstreamPutBit(bs, 1); /* fixed_vop_rate = 1 */ |
1176 |
BitstreamPutBits(bs, pParam->fincr, log2bin(pParam->fbase)); /* fixed_vop_time_increment */ |
BitstreamPutBits(bs, pParam->fincr, log2bin(pParam->fbase-1)); /* fixed_vop_time_increment */ |
1177 |
}else{ |
}else{ |
1178 |
BitstreamPutBit(bs, 0); /* fixed_vop_rate = 0 */ |
BitstreamPutBit(bs, 0); /* fixed_vop_rate = 0 */ |
1179 |
} |
} |
1190 |
if (vol_ver_id != 1) |
if (vol_ver_id != 1) |
1191 |
{ if ((pParam->vol_flags & XVID_VOL_GMC)) |
{ if ((pParam->vol_flags & XVID_VOL_GMC)) |
1192 |
{ BitstreamPutBits(bs, 2, 2); /* sprite_enable=='GMC' */ |
{ BitstreamPutBits(bs, 2, 2); /* sprite_enable=='GMC' */ |
1193 |
BitstreamPutBits(bs, 2, 6); /* no_of_sprite_warping_points */ |
BitstreamPutBits(bs, 3, 6); /* no_of_sprite_warping_points */ |
1194 |
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 */ |
1195 |
BitstreamPutBit(bs, 0); /* sprite_brightness_change (not supported) */ |
BitstreamPutBit(bs, 0); /* sprite_brightness_change (not supported) */ |
1196 |
|
|
1234 |
BitstreamPutBit(bs, 1); /* resync_marker_disable */ |
BitstreamPutBit(bs, 1); /* resync_marker_disable */ |
1235 |
BitstreamPutBit(bs, 0); /* data_partitioned */ |
BitstreamPutBit(bs, 0); /* data_partitioned */ |
1236 |
|
|
1237 |
if (vol_ver_id != 1) |
if (vol_ver_id != 1) { |
|
{ |
|
1238 |
BitstreamPutBit(bs, 0); /* newpred_enable */ |
BitstreamPutBit(bs, 0); /* newpred_enable */ |
|
|
|
1239 |
BitstreamPutBit(bs, (pParam->vol_flags & XVID_VOL_REDUCED_ENABLE)?1:0); |
BitstreamPutBit(bs, (pParam->vol_flags & XVID_VOL_REDUCED_ENABLE)?1:0); |
1240 |
/* reduced_resolution_vop_enabled */ |
/* reduced_resolution_vop_enabled */ |
1241 |
} |
} |
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)) { |
1293 |
|
|
1294 |
/* time_increment: value=nth_of_sec, nbits = log2(resolution) */ |
/* time_increment: value=nth_of_sec, nbits = log2(resolution) */ |
1295 |
|
|
1296 |
BitstreamPutBits(bs, frame->ticks, log2bin(pParam->fbase)); |
BitstreamPutBits(bs, frame->ticks, log2bin(pParam->fbase-1)); |
1297 |
#if 0 |
#if 0 |
1298 |
DPRINTF("[%i:%i] %c", |
DPRINTF("[%i:%i] %c", |
1299 |
frame->seconds, frame->ticks, |
frame->seconds, frame->ticks, |
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(); |