33 |
#include "mbcoding.h" |
#include "mbcoding.h" |
34 |
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35 |
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36 |
static const uint8_t log2_tab_16[256] = { 0, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4 }; |
static const uint8_t log2_tab_16[16] = { 0, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4 }; |
37 |
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38 |
static uint32_t __inline log2bin(uint32_t value) |
static uint32_t __inline log2bin(uint32_t value) |
39 |
{ |
{ |
65 |
}; |
}; |
66 |
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67 |
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68 |
void |
static void |
69 |
bs_get_matrix(Bitstream * bs, |
bs_get_matrix(Bitstream * bs, |
70 |
uint8_t * matrix) |
uint8_t * matrix) |
71 |
{ |
{ |
194 |
DPRINTF(XVID_DEBUG_HEADER,"fcode_backward %i\n", *fcode_backward); |
DPRINTF(XVID_DEBUG_HEADER,"fcode_backward %i\n", *fcode_backward); |
195 |
} |
} |
196 |
} |
} |
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197 |
} |
} |
198 |
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199 |
if (dec->newpred_enable) |
if (dec->newpred_enable) |
423 |
DPRINTF(XVID_DEBUG_STARTCODE, "</visual_object_sequence>\n"); |
DPRINTF(XVID_DEBUG_STARTCODE, "</visual_object_sequence>\n"); |
424 |
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425 |
} else if (start_code == VISOBJ_START_CODE) { |
} else if (start_code == VISOBJ_START_CODE) { |
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int visobj_ver_id; |
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426 |
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427 |
DPRINTF(XVID_DEBUG_STARTCODE, "<visual_object>\n"); |
DPRINTF(XVID_DEBUG_STARTCODE, "<visual_object>\n"); |
428 |
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429 |
BitstreamSkip(bs, 32); /* visual_object_start_code */ |
BitstreamSkip(bs, 32); /* visual_object_start_code */ |
430 |
if (BitstreamGetBit(bs)) /* is_visual_object_identified */ |
if (BitstreamGetBit(bs)) /* is_visual_object_identified */ |
431 |
{ |
{ |
432 |
visobj_ver_id = BitstreamGetBits(bs, 4); /* visual_object_ver_id */ |
dec->ver_id = BitstreamGetBits(bs, 4); /* visual_object_ver_id */ |
433 |
DPRINTF(XVID_DEBUG_HEADER,"visobj_ver_id %i\n", visobj_ver_id); |
DPRINTF(XVID_DEBUG_HEADER,"visobj_ver_id %i\n", dec->ver_id); |
434 |
BitstreamSkip(bs, 3); /* visual_object_priority */ |
BitstreamSkip(bs, 3); /* visual_object_priority */ |
435 |
} else { |
} else { |
436 |
visobj_ver_id = 1; |
dec->ver_id = 1; |
437 |
} |
} |
438 |
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|
439 |
if (BitstreamShowBits(bs, 4) != VISOBJ_TYPE_VIDEO) /* visual_object_type */ |
if (BitstreamShowBits(bs, 4) != VISOBJ_TYPE_VIDEO) /* visual_object_type */ |
482 |
DPRINTF(XVID_DEBUG_HEADER,"ver_id %i\n", vol_ver_id); |
DPRINTF(XVID_DEBUG_HEADER,"ver_id %i\n", vol_ver_id); |
483 |
BitstreamSkip(bs, 3); /* video_object_layer_priority */ |
BitstreamSkip(bs, 3); /* video_object_layer_priority */ |
484 |
} else { |
} else { |
485 |
vol_ver_id = 1; |
vol_ver_id = dec->ver_id; |
486 |
} |
} |
487 |
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488 |
dec->aspect_ratio = BitstreamGetBits(bs, 4); |
dec->aspect_ratio = BitstreamGetBits(bs, 4); |
548 |
dec->time_inc_resolution = BitstreamGetBits(bs, 16); /* vop_time_increment_resolution */ |
dec->time_inc_resolution = BitstreamGetBits(bs, 16); /* vop_time_increment_resolution */ |
549 |
DPRINTF(XVID_DEBUG_HEADER,"vop_time_increment_resolution %i\n", dec->time_inc_resolution); |
DPRINTF(XVID_DEBUG_HEADER,"vop_time_increment_resolution %i\n", dec->time_inc_resolution); |
550 |
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#if 0 |
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dec->time_inc_resolution--; |
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#endif |
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551 |
if (dec->time_inc_resolution > 0) { |
if (dec->time_inc_resolution > 0) { |
552 |
dec->time_inc_bits = MAX(log2bin(dec->time_inc_resolution-1), 1); |
dec->time_inc_bits = MAX(log2bin(dec->time_inc_resolution-1), 1); |
553 |
} else { |
} else { |
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#if 0 |
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dec->time_inc_bits = 0; |
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#endif |
|
554 |
/* for "old" xvid compatibility, set time_inc_bits = 1 */ |
/* for "old" xvid compatibility, set time_inc_bits = 1 */ |
555 |
dec->time_inc_bits = 1; |
dec->time_inc_bits = 1; |
556 |
} |
} |
820 |
dec->time = (dec->last_time_base + time_incr)*dec->time_inc_resolution + time_increment; |
dec->time = (dec->last_time_base + time_incr)*dec->time_inc_resolution + time_increment; |
821 |
dec->time_bp = dec->time_pp - (int32_t)(dec->last_non_b_time - dec->time); |
dec->time_bp = dec->time_pp - (int32_t)(dec->last_non_b_time - dec->time); |
822 |
} |
} |
823 |
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if (dec->time_pp <= 0) dec->time_pp = 1; |
824 |
DPRINTF(XVID_DEBUG_HEADER,"time_pp=%i\n", dec->time_pp); |
DPRINTF(XVID_DEBUG_HEADER,"time_pp=%i\n", dec->time_pp); |
825 |
DPRINTF(XVID_DEBUG_HEADER,"time_bp=%i\n", dec->time_bp); |
DPRINTF(XVID_DEBUG_HEADER,"time_bp=%i\n", dec->time_bp); |
826 |
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1024 |
version, build, dec->packed_mode); |
version, build, dec->packed_mode); |
1025 |
} |
} |
1026 |
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1027 |
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if ((dec->bs_version == 0) && (build > 0) && |
1028 |
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(build != 1393)) { /* non-xvid stream with xvid fourcc */ |
1029 |
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dec->bs_version = 0xffff; |
1030 |
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} |
1031 |
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1032 |
} else /* start_code == ? */ |
} else /* start_code == ? */ |
1033 |
{ |
{ |
1034 |
if (BitstreamShowBits(bs, 24) == 0x000001) { |
if (BitstreamShowBits(bs, 24) == 0x000001) { |
1072 |
void |
void |
1073 |
BitstreamWriteVolHeader(Bitstream * const bs, |
BitstreamWriteVolHeader(Bitstream * const bs, |
1074 |
const MBParam * pParam, |
const MBParam * pParam, |
1075 |
const FRAMEINFO * const frame) |
const FRAMEINFO * const frame, |
1076 |
|
const int num_slices) |
1077 |
{ |
{ |
1078 |
static const unsigned int vo_id = 0; |
static const unsigned int vo_id = 0; |
1079 |
static const unsigned int vol_id = 0; |
static const unsigned int vol_id = 0; |
1082 |
int vol_profile = pParam->profile; |
int vol_profile = pParam->profile; |
1083 |
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1084 |
if ( (pParam->vol_flags & XVID_VOL_QUARTERPEL) || |
if ( (pParam->vol_flags & XVID_VOL_QUARTERPEL) || |
1085 |
(pParam->vol_flags & XVID_VOL_GMC) || |
(pParam->vol_flags & XVID_VOL_GMC)) |
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(pParam->vol_flags & XVID_VOL_REDUCED_ENABLE)) |
|
1086 |
vol_ver_id = 2; |
vol_ver_id = 2; |
1087 |
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if ((pParam->vol_flags & XVID_VOL_REDUCED_ENABLE)) { |
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vol_type_ind = VIDOBJLAY_TYPE_ART_SIMPLE; |
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} |
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1088 |
if ((pParam->vol_flags & (XVID_VOL_MPEGQUANT|XVID_VOL_QUARTERPEL|XVID_VOL_GMC|XVID_VOL_INTERLACING)) || |
if ((pParam->vol_flags & (XVID_VOL_MPEGQUANT|XVID_VOL_QUARTERPEL|XVID_VOL_GMC|XVID_VOL_INTERLACING)) || |
1089 |
pParam->max_bframes>0) { |
pParam->max_bframes>0) { |
1090 |
vol_type_ind = VIDOBJLAY_TYPE_ASP; |
vol_type_ind = VIDOBJLAY_TYPE_ASP; |
1238 |
} |
} |
1239 |
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1240 |
BitstreamPutBit(bs, 1); /* complexity_estimation_disable */ |
BitstreamPutBit(bs, 1); /* complexity_estimation_disable */ |
1241 |
BitstreamPutBit(bs, 1); /* resync_marker_disable */ |
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1242 |
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if (num_slices > 1) |
1243 |
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BitstreamPutBit(bs, 0); /* resync_marker_enabled */ |
1244 |
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else |
1245 |
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BitstreamPutBit(bs, 1); /* resync_marker_disabled */ |
1246 |
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1247 |
BitstreamPutBit(bs, 0); /* data_partitioned */ |
BitstreamPutBit(bs, 0); /* data_partitioned */ |
1248 |
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1249 |
if (vol_ver_id != 1) { |
if (vol_ver_id != 1) { |
1250 |
BitstreamPutBit(bs, 0); /* newpred_enable */ |
BitstreamPutBit(bs, 0); /* newpred_enable */ |
1251 |
BitstreamPutBit(bs, (pParam->vol_flags & XVID_VOL_REDUCED_ENABLE)?1:0); |
BitstreamPutBit(bs, 0); /* reduced_resolution_vop_enabled */ |
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/* reduced_resolution_vop_enabled */ |
|
1252 |
} |
} |
1253 |
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1254 |
BitstreamPutBit(bs, 0); /* scalability */ |
BitstreamPutBit(bs, 0); /* scalability */ |
1256 |
BitstreamPadAlways(bs); /* next_start_code(); */ |
BitstreamPadAlways(bs); /* next_start_code(); */ |
1257 |
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1258 |
/* divx5 userdata string */ |
/* divx5 userdata string */ |
1259 |
#define DIVX5_ID "DivX503b1393" |
#define DIVX5_ID ((char *)"DivX503b1393") |
1260 |
if ((pParam->global_flags & XVID_GLOBAL_DIVX5_USERDATA)) { |
if ((pParam->global_flags & XVID_GLOBAL_DIVX5_USERDATA)) { |
1261 |
BitstreamWriteUserData(bs, DIVX5_ID, strlen(DIVX5_ID)); |
BitstreamWriteUserData(bs, DIVX5_ID, (uint32_t)strlen(DIVX5_ID)); |
1262 |
if (pParam->max_bframes > 0 && (pParam->global_flags & XVID_GLOBAL_PACKED)) |
if (pParam->max_bframes > 0 && (pParam->global_flags & XVID_GLOBAL_PACKED)) |
1263 |
BitstreamPutBits(bs, 'p', 8); |
BitstreamPutBits(bs, 'p', 8); |
1264 |
} |
} |
1271 |
xvid_user_format, |
xvid_user_format, |
1272 |
XVID_BS_VERSION, |
XVID_BS_VERSION, |
1273 |
(frame->vop_flags & XVID_VOP_CARTOON)?'C':'\0'); |
(frame->vop_flags & XVID_VOP_CARTOON)?'C':'\0'); |
1274 |
BitstreamWriteUserData(bs, xvid_user_data, strlen(xvid_user_data)); |
BitstreamWriteUserData(bs, xvid_user_data, (uint32_t)strlen(xvid_user_data)); |
1275 |
} |
} |
1276 |
} |
} |
1277 |
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1342 |
if ( (frame->coding_type == P_VOP) || (frame->coding_type == S_VOP) ) |
if ( (frame->coding_type == P_VOP) || (frame->coding_type == S_VOP) ) |
1343 |
BitstreamPutBits(bs, frame->rounding_type, 1); |
BitstreamPutBits(bs, frame->rounding_type, 1); |
1344 |
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if ((frame->vol_flags & XVID_VOL_REDUCED_ENABLE)) |
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BitstreamPutBit(bs, 0); |
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1345 |
BitstreamPutBits(bs, 0, 3); /* intra_dc_vlc_threshold */ |
BitstreamPutBits(bs, 0, 3); /* intra_dc_vlc_threshold */ |
1346 |
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1347 |
if ((frame->vol_flags & XVID_VOL_INTERLACING)) { |
if ((frame->vol_flags & XVID_VOL_INTERLACING)) { |
1389 |
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|
1390 |
void |
void |
1391 |
BitstreamWriteUserData(Bitstream * const bs, |
BitstreamWriteUserData(Bitstream * const bs, |
1392 |
uint8_t * data, |
const char *data, |
1393 |
const int length) |
const unsigned int length) |
1394 |
{ |
{ |
1395 |
int i; |
unsigned int i; |
1396 |
|
|
1397 |
BitstreamPad(bs); |
BitstreamPad(bs); |
1398 |
BitstreamPutBits(bs, USERDATA_START_CODE, 32); |
BitstreamPutBits(bs, USERDATA_START_CODE, 32); |
1449 |
{ |
{ |
1450 |
const int mbnum_bits = log2bin(pParam->mb_width * pParam->mb_height - 1); |
const int mbnum_bits = log2bin(pParam->mb_width * pParam->mb_height - 1); |
1451 |
uint32_t nbitsresyncmarker; |
uint32_t nbitsresyncmarker; |
1452 |
int addbits=0; |
|
1453 |
if (frame->coding_type != I_VOP) |
if (frame->coding_type == I_VOP) |
1454 |
addbits = frame->fcode -1; |
nbitsresyncmarker = NUMBITS_VP_RESYNC_MARKER; /* 16 zeros followed by a 1. */ |
1455 |
if (frame->coding_type == B_VOP) |
else if (frame->coding_type == B_VOP) /* B_VOP */ |
1456 |
addbits = MAX(frame->fcode, frame->bcode)-1; |
nbitsresyncmarker = MAX(NUMBITS_VP_RESYNC_MARKER+1, NUMBITS_VP_RESYNC_MARKER + MAX(frame->fcode, frame->bcode) - 1); |
1457 |
BitstreamPadAlways(bs); |
else /*(frame->coding_type == P_VOP)*/ |
1458 |
nbitsresyncmarker = NUMBITS_VP_RESYNC_MARKER + addbits; |
nbitsresyncmarker = NUMBITS_VP_RESYNC_MARKER + frame->fcode - 1; |
1459 |
|
|
1460 |
BitstreamPutBits(bs, RESYNC_MARKER, nbitsresyncmarker); |
BitstreamPutBits(bs, RESYNC_MARKER, nbitsresyncmarker); |
1461 |
BitstreamPutBits(bs, mbnum, mbnum_bits); |
BitstreamPutBits(bs, mbnum, mbnum_bits); |
1462 |
BitstreamPutBits(bs, frame->quant, 5); |
BitstreamPutBits(bs, frame->quant, 5); |