438 |
uint32_t coding_type; |
uint32_t coding_type; |
439 |
uint32_t start_code; |
uint32_t start_code; |
440 |
uint32_t time_incr = 0; |
uint32_t time_incr = 0; |
441 |
int32_t time_increment; |
int32_t time_increment = 0; |
442 |
int resize = 0; |
int resize = 0; |
443 |
|
|
444 |
do { |
do { |
558 |
DPRINTF(DPRINTF_HEADER, "low_delay %i", dec->low_delay); |
DPRINTF(DPRINTF_HEADER, "low_delay %i", dec->low_delay); |
559 |
if (BitstreamGetBit(bs)) // vbv_parameters |
if (BitstreamGetBit(bs)) // vbv_parameters |
560 |
{ |
{ |
561 |
|
unsigned int bitrate; |
562 |
|
unsigned int buffer_size; |
563 |
|
unsigned int occupancy; |
564 |
|
|
565 |
DPRINTF(DPRINTF_HEADER,"+ vbv_parameters"); |
DPRINTF(DPRINTF_HEADER,"+ vbv_parameters"); |
566 |
BitstreamSkip(bs, 15); // first_half_bitrate |
|
567 |
|
bitrate = BitstreamGetBits(bs,15) << 15; // first_half_bit_rate |
568 |
READ_MARKER(); |
READ_MARKER(); |
569 |
BitstreamSkip(bs, 15); // latter_half_bitrate |
bitrate |= BitstreamGetBits(bs,15); // latter_half_bit_rate |
570 |
READ_MARKER(); |
READ_MARKER(); |
571 |
BitstreamSkip(bs, 15); // first_half_vbv_buffer_size |
|
572 |
|
buffer_size = BitstreamGetBits(bs, 15) << 3; // first_half_vbv_buffer_size |
573 |
READ_MARKER(); |
READ_MARKER(); |
574 |
BitstreamSkip(bs, 3); // latter_half_vbv_buffer_size |
buffer_size |= BitstreamGetBits(bs, 3); // latter_half_vbv_buffer_size |
575 |
BitstreamSkip(bs, 11); // first_half_vbv_occupancy |
|
576 |
|
occupancy = BitstreamGetBits(bs, 11) << 15; // first_half_vbv_occupancy |
577 |
READ_MARKER(); |
READ_MARKER(); |
578 |
BitstreamSkip(bs, 15); // latter_half_vbv_occupancy |
occupancy |= BitstreamGetBits(bs, 15); // latter_half_vbv_occupancy |
579 |
READ_MARKER(); |
READ_MARKER(); |
580 |
|
|
581 |
|
DPRINTF(DPRINTF_HEADER,"bitrate %d (unit=400 bps)", bitrate); |
582 |
|
DPRINTF(DPRINTF_HEADER,"buffer_size %d (unit=16384 bits)", buffer_size); |
583 |
|
DPRINTF(DPRINTF_HEADER,"occupancy %d (unit=64 bits)", occupancy); |
584 |
} |
} |
585 |
}else{ |
}else{ |
586 |
dec->low_delay = dec->low_delay_default; |
dec->low_delay = dec->low_delay_default; |
1070 |
|
|
1071 |
DPRINTF(DPRINTF_STARTCODE, "<user_data>: %s\n", tmp); |
DPRINTF(DPRINTF_STARTCODE, "<user_data>: %s\n", tmp); |
1072 |
|
|
1073 |
|
/* read xvid bitstream version */ |
1074 |
|
if(strncmp(tmp, "XviD", 4) == 0) { |
1075 |
|
sscanf(tmp, "XviD%d", &dec->bs_version); |
1076 |
|
DPRINTF(DPRINTF_HEADER, "xvid bitstream version=%i", dec->bs_version); |
1077 |
|
} |
1078 |
|
|
1079 |
/* divx detection */ |
/* divx detection */ |
1080 |
i = sscanf(tmp, "DivX%dBuild%d%c", &version, &build, &packed); |
i = sscanf(tmp, "DivX%dBuild%d%c", &version, &build, &packed); |
1081 |
if (i < 2) |
if (i < 2) |
1156 |
BitstreamPutBits(bs, profile, 8); |
BitstreamPutBits(bs, profile, 8); |
1157 |
|
|
1158 |
// visual_object_start_code |
// visual_object_start_code |
1159 |
BitstreamPadAlways(bs); |
BitstreamPad(bs); |
1160 |
BitstreamPutBits(bs, VISOBJ_START_CODE, 32); |
BitstreamPutBits(bs, VISOBJ_START_CODE, 32); |
1161 |
BitstreamPutBits(bs, 0, 1); // is_visual_object_identifier |
BitstreamPutBits(bs, 0, 1); // is_visual_object_identifier |
1162 |
|
|
1163 |
|
/* Video type */ |
1164 |
BitstreamPutBits(bs, VISOBJ_TYPE_VIDEO, 4); // visual_object_type |
BitstreamPutBits(bs, VISOBJ_TYPE_VIDEO, 4); // visual_object_type |
1165 |
|
BitstreamPutBit(bs, 0); /* video_signal_type */ |
1166 |
|
|
1167 |
// video object_start_code & vo_id |
// video object_start_code & vo_id |
1168 |
BitstreamPadAlways(bs); |
BitstreamPadAlways(bs); // next_start_code() |
1169 |
BitstreamPutBits(bs, VIDOBJ_START_CODE|(vo_id&0x5), 32); |
BitstreamPutBits(bs, VIDOBJ_START_CODE|(vo_id&0x5), 32); |
1170 |
|
|
1171 |
// video_object_layer_start_code & vol_id |
// video_object_layer_start_code & vol_id |
1172 |
BitstreamPadAlways(bs); |
BitstreamPad(bs); |
1173 |
BitstreamPutBits(bs, VIDOBJLAY_START_CODE|(vol_id&0x4), 32); |
BitstreamPutBits(bs, VIDOBJLAY_START_CODE|(vol_id&0x4), 32); |
1174 |
|
|
1175 |
BitstreamPutBit(bs, 0); // random_accessible_vol |
BitstreamPutBit(bs, 0); // random_accessible_vol |
1183 |
{ |
{ |
1184 |
BitstreamPutBit(bs, 1); // is_object_layer_identified |
BitstreamPutBit(bs, 1); // is_object_layer_identified |
1185 |
BitstreamPutBits(bs, vol_ver_id, 4); // vol_ver_id == 2 |
BitstreamPutBits(bs, vol_ver_id, 4); // vol_ver_id == 2 |
1186 |
BitstreamPutBits(bs, 4, 3); // vol_ver_priority (1==lowest, 7==highest) ?? |
BitstreamPutBits(bs, 4, 3); // vol_ver_priority (1==highest, 7==lowest) |
1187 |
} |
} |
1188 |
|
|
1189 |
BitstreamPutBits(bs, 1, 4); // aspect_ratio_info (1=1:1) |
BitstreamPutBits(bs, 1, 4); // aspect_ratio_info (1=1:1) |
1279 |
|
|
1280 |
BitstreamPutBit(bs, 0); // scalability |
BitstreamPutBit(bs, 0); // scalability |
1281 |
|
|
1282 |
|
BitstreamPadAlways(bs); // next_start_code() |
1283 |
|
|
1284 |
/* fake divx5 id, to ensure compatibility with divx5 decoder */ |
/* fake divx5 id, to ensure compatibility with divx5 decoder */ |
1285 |
#define DIVX5_ID "DivX501b481p" |
#define DIVX5_ID "DivX501b481p" |
1286 |
if (pParam->max_bframes > 0 && (pParam->global & XVID_GLOBAL_PACKED)) { |
if (pParam->max_bframes > 0 && (pParam->global & XVID_GLOBAL_PACKED)) { |
1332 |
|
|
1333 |
if (!vop_coded) { |
if (!vop_coded) { |
1334 |
BitstreamPutBits(bs, 0, 1); |
BitstreamPutBits(bs, 0, 1); |
1335 |
|
#if 0 |
1336 |
|
BitstreamPadAlways(bs); /* next_start_code() */ |
1337 |
|
#endif |
1338 |
|
/* NB: It's up to the function caller to write the next_start_code(). |
1339 |
|
* At the moment encoder.c respects that requisite because a VOP |
1340 |
|
* always ends with a next_start_code either if it's coded or not |
1341 |
|
* and encoder.c terminates a frame with a next_start_code in whatever |
1342 |
|
* case */ |
1343 |
return; |
return; |
1344 |
} |
} |
1345 |
|
|
1401 |
{ |
{ |
1402 |
int i; |
int i; |
1403 |
|
|
1404 |
BitstreamPadAlways(bs); |
BitstreamPad(bs); |
1405 |
BitstreamPutBits(bs, USERDATA_START_CODE, 32); |
BitstreamPutBits(bs, USERDATA_START_CODE, 32); |
1406 |
|
|
1407 |
for (i = 0; i < length; i++) { |
for (i = 0; i < length; i++) { |