20 |
* along with this program ; if not, write to the Free Software |
* along with this program ; if not, write to the Free Software |
21 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
22 |
* |
* |
23 |
* $Id: bitstream.c,v 1.39.2.14 2003-06-29 16:17:51 chl Exp $ |
* $Id: bitstream.c,v 1.39.2.15 2003-07-28 12:29:07 edgomez Exp $ |
24 |
* |
* |
25 |
****************************************************************************/ |
****************************************************************************/ |
26 |
|
|
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) */ |
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 |
|
|