History

avcodec/msmpeg4dec: Avoid lookups when decoding motion vector

Up until now, the decoder uses VLCs to determine whether this is an escape element or an index in two separate tables giving the x and y components of the motion vector. Given that both these components fit into an int16_t and therefore into a VLCElem's symbol one can simply use a symbol table to avoid the latter lookups. This necessitated to combine the two tables for x and y components. While just at it, also switch to ff_vlc_init_tables_from_lengths(). This will allow to get rid of the code tables (about 4KiB) once the encoder has been ported, too.

Andreas Rheinhardt committed 1 year ago

Commit 3d9a5811 parent 82a856e4 files · +536 −25Browse files

Unified · Split

4 files
  1. libavcodec/msmpeg4data.c +509 −1
  2. libavcodec/msmpeg4data.h +6 −1
  3. libavcodec/msmpeg4dec.c +20 −22
  4. libavcodec/msmpeg4enc.c +1 −1
libavcodec/msmpeg4data.c+509−1
@@ -481,6 +481,515 @@ RLTable ff_rl_table[NB_RL_TABLES] = { · 480 unmodified lines
481481
482482 /* motion vector table 0 */
483483
484+#define E(mvx, mvy) ((mvx << 8) | mvy)
485+#define ESCAPE 0
486+
487+const uint16_t ff_msmp4_mv_table0[MSMPEG4_MV_TABLES_NB_ELEMS] = {
488+ ESCAPE, E(31, 39), E(38, 31), E(24, 32), E(23, 30), E(34, 20),
489+ E(33, 22), E(21, 29), E(28, 34), E(33, 24), E(49, 32), E(27, 41),
490+ E(32, 2), E(40, 33), E(34, 39), E(37, 25), E(29, 26), E(38, 28),
491+ E(43, 31), E(37, 33), E(31, 35), E(32, 35), E(25, 29), E(26, 28),
492+ E(32, 42), E(33, 23), E(42, 31), E(35, 36), E(27, 31), E(36, 30),
493+ E(21, 32), E(23, 32), E(43, 32), E(36, 32), E(39, 29), E(38, 30),
494+ E(36, 34), E(34, 36), E(19, 30), E(20, 38), E(41, 41), E(26, 44),
495+ E(41, 53), E(42, 11), E(42, 20), E(42, 25), E(26, 45), E(26, 46),
496+ E(26, 47), E(26, 48), E( 1, 39), E(26, 52), E(37, 46), E(37, 49),
497+ E(37, 63), E(23, 55), E(34, 44), E(42, 38), E(27, 13), E(43, 13),
498+ E(34, 57), E(27, 22), E(31, 51), E(24, 16), E(33, 12), E(16, 28),
499+ E( 3, 35), E(31, 57), E(24, 25), E(31, 33), E(33, 33), E(34, 32),
500+ E(31, 34), E(34, 31), E(33, 20), E(24, 26), E( 4, 28), E(44, 28),
501+ E(44, 29), E(11, 32), E(44, 31), E(31, 62), E(13, 34), E(13, 35),
502+ E(44, 35), E(45, 19), E(13, 49), E(25, 48), E(22, 39), E(38, 40),
503+ E(26, 18), E(38, 43), E(38, 46), E(39, 11), E(32, 6), E(30, 48),
504+ E(39, 19), E(30, 49), E(22, 41), E(32, 10), E(26, 23), E(30, 58),
505+ E(47, 17), E(47, 21), E(47, 23), E(19, 34), E(47, 30), E(30, 60),
506+ E(31, 0), E(35, 44), E( 8, 34), E(23, 26), E(47, 37), E(47, 46),
507+ E(27, 43), E(35, 49), E(47, 59), E(31, 4), E(48, 34), E(35, 59),
508+ E(19, 37), E(36, 22), E(49, 25), E(49, 28), E(33, 46), E(31, 6),
509+ E(39, 40), E(27, 59), E(39, 42), E(49, 36), E(49, 61), E(50, 28),
510+ E(50, 30), E(50, 31), E(39, 43), E(31, 10), E(51, 22), E(51, 23),
511+ E(39, 47), E(28, 20), E(33, 52), E(33, 55), E(21, 36), E(40, 25),
512+ E(31, 16), E(52, 1), E(53, 11), E(40, 27), E(53, 29), E( 9, 5),
513+ E(33, 63), E(31, 18), E(53, 41), E(54, 31), E(54, 34), E(54, 38),
514+ E(55, 1), E(55, 5), E(34, 13), E(15, 28), E(56, 31), E(25, 17),
515+ E(56, 38), E(21, 39), E(21, 41), E(40, 36), E(40, 37), E(25, 22),
516+ E(40, 39), E(58, 33), E(36, 43), E( 5, 43), E(41, 15), E(41, 17),
517+ E(12, 49), E(60, 30), E(41, 21), E(41, 22), E(37, 20), E(22, 10),
518+ E(61, 17), E(18, 25), E(29, 54), E(29, 57), E(30, 3), E(61, 34),
519+ E(30, 8), E(61, 36), E(62, 25), E(62, 31), E(30, 14), E(30, 15),
520+ E(63, 19), E(18, 29), E(13, 25), E(30, 18), E(45, 30), E( 1, 63),
521+ E(34, 16), E(31, 42), E(22, 28), E(35, 13), E(15, 33), E(46, 33),
522+ E(46, 35), E(35, 19), E(31, 46), E(28, 43), E(29, 17), E(29, 19),
523+ E(23, 36), E(41, 39), E(27, 24), E(14, 31), E(53, 32), E(53, 33),
524+ E(27, 26), E(24, 28), E(32, 62), E(57, 33), E(32, 63), E(17, 33),
525+ E(42, 39), E(37, 19), E(29, 49), E(33, 17), E( 1, 31), E(25, 43),
526+ E(32, 13), E(32, 15), E(63, 29), E(26, 25), E(40, 35), E(23, 34),
527+ E(27, 25), E(22, 33), E(24, 29), E(22, 31), E(39, 39), E(43, 35),
528+ E(27, 36), E(37, 24), E( 6, 32), E(42, 30), E(24, 33), E(40, 31),
529+ E(28, 39), E(32, 1), E(32, 41), E(41, 32), E(36, 31), E(28, 32),
530+ E(35, 31), E(29, 31), E(38, 32), E(23, 31), E(27, 30), E(32, 59),
531+ E(32, 22), E(32, 21), E(30, 39), E(35, 25), E(26, 34), E(34, 38),
532+ E(30, 28), E(44, 33), E(36, 23), E(47, 33), E(26, 27), E(30, 44),
533+ E(31, 60), E(41, 30), E(39, 36), E(33, 19), E(33, 29), E(32, 36),
534+ E(22, 34), E(45, 31), E(36, 24), E(32, 16), E(45, 35), E(19, 32),
535+ E(36, 27), E(32, 4), E(43, 33), E(60, 32), E(37, 31), E(35, 33),
536+ E(35, 32), E(34, 29), E(33, 28), E(25, 33), E(25, 34), E(21, 33),
537+ E(36, 35), E(37, 32), E(29, 39), E(31, 24), E(30, 41), E(31, 3),
538+ E(41, 35), E(22, 32), E(32, 39), E(32, 30), E(33, 32), E(32, 29),
539+ E(33, 35), E(31, 28), E(28, 30), E(26, 33), E(31, 49), E(39, 41),
540+ E(20, 28), E(20, 29), E(44, 34), E(23, 38), E(33, 7), E(34, 61),
541+ E(29, 29), E(31, 38), E(35, 11), E(33, 50), E(33, 13), E(28, 41),
542+ E(41, 19), E(23, 47), E(41, 25), E(41, 26), E(29, 15), E(25, 42),
543+ E(26, 41), E(49, 29), E(29, 45), E(24, 27), E(37, 17), E(49, 35),
544+ E(34, 33), E(30, 35), E(50, 32), E(51, 29), E(51, 32), E(26, 24),
545+ E(39, 13), E(25, 26), E(26, 26), E(15, 31), E(39, 24), E(18, 33),
546+ E(42, 28), E(17, 30), E( 4, 31), E(31, 11), E(32, 45), E(32, 46),
547+ E(60, 33), E( 1, 33), E(42, 35), E(32, 57), E( 0, 32), E(12, 32),
548+ E(19, 35), E(35, 45), E(22, 38), E(30, 21), E( 5, 33), E( 5, 31),
549+ E(17, 31), E(29, 21), E(22, 35), E(31, 5), E(31, 17), E(43, 29),
550+ E(37, 38), E(27, 38), E(32, 18), E(32, 58), E(32, 19), E(33, 43),
551+ E(29, 41), E(33, 41), E(31, 37), E(30, 37), E(41, 33), E( 7, 32),
552+ E(28, 31), E(34, 27), E(30, 27), E(37, 28), E(26, 36), E(34, 30),
553+ E(31, 29), E(33, 30), E(27, 32), E(38, 29), E(30, 25), E(36, 28),
554+ E(37, 36), E(21, 34), E(23, 39), E(19, 53), E(34, 41), E(36, 33),
555+ E(32, 28), E(25, 32), E(29, 32), E(29, 33), E(33, 27), E(29, 27),
556+ E(43, 30), E(35, 41), E(29, 43), E(26, 39), E(22, 29), E(32, 7),
557+ E(19, 29), E(32, 17), E(25, 28), E(31, 19), E(41, 28), E(49, 31),
558+ E(28, 25), E(34, 19), E(28, 40), E(39, 26), E(34, 21), E(19, 33),
559+ E(37, 39), E(38, 23), E(29, 40), E(21, 30), E(36, 39), E(42, 34),
560+ E(27, 28), E(59, 33), E(38, 33), E(35, 28), E(33, 34), E(30, 32),
561+ E(30, 36), E(23, 35), E(33, 21), E(35, 23), E(31, 21), E(30, 26),
562+ E(41, 31), E(39, 32), E(32, 27), E(26, 30), E(31, 22), E(37, 37),
563+ E(38, 27), E(39, 27), E(32, 43), E(23, 29), E(32, 60), E(27, 39),
564+ E(25, 35), E(61, 32), E(30, 33), E(30, 34), E(34, 28), E(33, 36),
565+ E(37, 27), E(20, 22), E(20, 27), E(41, 20), E(13, 29), E( 2, 33),
566+ E( 5, 41), E( 5, 42), E( 1, 35), E(32, 24), E(34, 24), E( 5, 62),
567+ E(32, 50), E( 6, 29), E(32, 53), E(35, 50), E(20, 35), E(35, 55),
568+ E(27, 42), E(35, 61), E(35, 63), E(36, 4), E(36, 7), E(13, 42),
569+ E(36, 21), E(41, 46), E(41, 47), E(33, 37), E(28, 33), E(41, 49),
570+ E( 3, 27), E(30, 46), E(42, 17), E(27, 55), E(20, 41), E(30, 50),
571+ E(27, 63), E(28, 4), E(30, 56), E(21, 18), E(33, 8), E(33, 10),
572+ E(14, 18), E(24, 51), E(30, 63), E(42, 36), E(24, 55), E(33, 18),
573+ E(25, 5), E(42, 55), E(43, 9), E(14, 29), E(43, 17), E(43, 21),
574+ E(14, 30), E(43, 27), E( 7, 1), E(36, 59), E(37, 7), E(37, 11),
575+ E(37, 12), E(37, 15), E( 7, 5), E(14, 42), E(25, 24), E(43, 41),
576+ E(43, 43), E(44, 7), E(15, 27), E(37, 22), E( 7, 25), E( 7, 31),
577+ E( 3, 30), E( 1, 37), E( 8, 22), E(15, 39), E(15, 53), E( 8, 29),
578+ E(44, 36), E(44, 37), E(44, 48), E(45, 0), E(45, 5), E(45, 13),
579+ E(45, 17), E( 8, 31), E( 8, 32), E(45, 26), E(21, 46), E(45, 28),
580+ E(28, 44), E(28, 45), E(28, 46), E(21, 53), E(28, 49), E(28, 51),
581+ E(22, 3), E(37, 41), E(46, 3), E(46, 22), E(37, 42), E( 8, 33),
582+ E(29, 5), E(37, 45), E(29, 7), E(22, 22), E(46, 40), E(37, 53),
583+ E(22, 24), E(29, 14), E(47, 25), E(47, 27), E(38, 10), E(38, 12),
584+ E(16, 34), E(38, 16), E(38, 17), E(33, 53), E(38, 20), E(22, 26),
585+ E(47, 39), E(47, 45), E(29, 18), E(25, 45), E(16, 35), E( 0, 33),
586+ E(48, 31), E( 1, 49), E(34, 4), E(48, 39), E(48, 42), E(34, 11),
587+ E(25, 51), E(26, 5), E(26, 13), E(49, 26), E(49, 27), E(26, 17),
588+ E( 1, 52), E(49, 30), E( 4, 0), E(26, 22), E( 4, 12), E(49, 34),
589+ E( 1, 62), E( 9, 36), E(49, 38), E(49, 41), E(49, 47), E(10, 30),
590+ E(49, 63), E(17, 38), E(38, 41), E(17, 43), E(17, 59), E(50, 33),
591+ E(38, 45), E(50, 37), E(50, 38), E(22, 40), E(38, 47), E(51, 24),
592+ E(38, 48), E(38, 49), E(51, 30), E(39, 1), E(39, 10), E(18, 22),
593+ E(22, 49), E(39, 15), E(51, 39), E(22, 59), E(52, 31), E(52, 32),
594+ E(52, 33), E(39, 18), E(53, 13), E(53, 15), E(10, 31), E(23, 21),
595+ E(18, 27), E(29, 44), E(10, 42), E(53, 39), E(29, 46), E(54, 17),
596+ E(11, 26), E(54, 32), E(11, 30), E(11, 31), E(55, 0), E( 1, 30),
597+ E(18, 34), E(55, 9), E(55, 12), E(55, 13), E(55, 25), E(55, 31),
598+ E(55, 32), E(29, 55), E(34, 43), E(18, 35), E(29, 61), E(56, 33),
599+ E(56, 35), E(34, 46), E(57, 25), E(34, 47), E(34, 48), E(29, 62),
600+ E(29, 63), E(57, 38), E(57, 61), E(35, 1), E(35, 2), E(35, 5),
601+ E(35, 7), E(35, 9), E(39, 46), E(35, 10), E(59, 34), E(59, 35),
602+ E(18, 36), E(59, 55), E(39, 51), E(30, 7), E(18, 40), E(40, 23),
603+ E(60, 34), E(60, 37), E(61, 5), E(30, 13), E(18, 42), E(61, 18),
604+ E(61, 25), E(19, 27), E(19, 28), E(41, 11), E(17, 37), E(26, 42),
605+ E(20, 39), E(45, 37), E(46, 31), E(32, 49), E(37, 21), E(22, 27),
606+ E(47, 29), E(29, 47), E(31, 53), E(27, 40), E(29, 51), E(30, 16),
607+ E(21, 26), E(33, 1), E(35, 40), E(18, 30), E(25, 41), E(33, 44),
608+ E(50, 34), E(51, 25), E(42, 27), E( 2, 31), E(15, 35), E(51, 35),
609+ E(53, 31), E(33, 15), E(25, 49), E(29, 1), E(55, 35), E(37, 40),
610+ E(38, 5), E(33, 58), E(38, 21), E(59, 29), E(38, 22), E(33, 59),
611+ E(39, 45), E(13, 31), E(32, 9), E(40, 26), E(61, 9), E(61, 29),
612+ E(32, 11), E( 9, 32), E(44, 30), E( 3, 3), E(31, 13), E(29, 20),
613+ E(25, 18), E(24, 35), E(48, 32), E(16, 32), E(28, 24), E(49, 33),
614+ E(22, 30), E(34, 40), E(31, 47), E(38, 39), E(39, 37), E(44, 32),
615+ E(11, 33), E(35, 24), E(30, 23), E(33, 45), E(33, 47), E(36, 25),
616+ E(31, 59), E(40, 34), E(25, 27), E(27, 27), E(38, 26), E(31, 40),
617+ E(36, 37), E(28, 27), E(32, 31), E(31, 31), E(34, 35), E(32, 37),
618+ E(34, 34), E(24, 31), E(39, 34), E(34, 37), E(27, 33), E(28, 35),
619+ E(31, 61), E(36, 26), E(25, 39), E(45, 33), E(25, 31), E(35, 34),
620+ E( 3, 31), E(34, 22), E(38, 37), E(39, 25), E(40, 30), E(38, 25),
621+ E( 1, 32), E(25, 30), E(39, 35), E(30, 38), E(37, 29), E(32, 40),
622+ E(28, 28), E(29, 38), E(32, 5), E(37, 34), E(31, 27), E(35, 27),
623+ E(27, 29), E(23, 27), E(28, 23), E(33, 42), E(46, 32), E(15, 32),
624+ E(13, 33), E(24, 36), E(41, 37), E(24, 37), E(34, 17), E(34, 18),
625+ E(30, 22), E(26, 40), E(24, 38), E(14, 32), E(60, 31), E(21, 35),
626+ E(29, 24), E(39, 17), E(23, 25), E(35, 17), E(37, 23), E(30, 24),
627+ E(32, 61), E(19, 31), E(24, 34), E(25, 25), E(26, 38), E(45, 32),
628+ E(38, 35), E(36, 29), E( 3, 32), E(26, 29), E(36, 36), E(30, 31),
629+ E(59, 32), E(28, 36), E(63, 32), E(26, 32), E(38, 34), E(63, 33),
630+ E(31, 20), E(27, 11), E(20, 32), E(24, 30), E(33, 3), E(37, 35),
631+ E(28, 38), E(39, 30), E(32, 3), E(31, 26), E(39, 31), E(35, 29),
632+ E(31, 30), E(32, 38), E(23, 33), E(23, 3), E( 9, 29), E(25, 40),
633+ E( 9, 31), E(29, 53), E(20, 30), E(30, 17), E(30, 20), E(42, 37),
634+ E(18, 31), E(28, 42), E(25, 47), E(28, 47), E(28, 54), E(21, 38),
635+ E(29, 9), E(43, 34), E(29, 13), E(43, 37), E(26, 21), E(44, 25),
636+ E(44, 27), E(21, 43), E(38, 42), E(35, 30), E(21, 45), E(24, 40),
637+ E(45, 25), E(45, 27), E(35, 46), E(39, 22), E(22, 25), E(35, 53),
638+ E(36, 20), E(34, 2), E(34, 14), E(45, 39), E(34, 15), E(29, 22),
639+ E(31, 44), E(46, 34), E(25, 21), E(46, 38), E(16, 33), E(17, 27),
640+ E(31, 48), E(20, 34), E(32, 52), E(47, 35), E(47, 47), E(47, 49),
641+ E(32, 54), E(49, 2), E(49, 13), E(49, 23), E(31, 52), E( 1, 29),
642+ E(27, 45), E(28, 22), E(39, 49), E(39, 54), E(21, 21), E(36, 40),
643+ E(23, 42), E(51, 31), E( 2, 30), E(40, 29), E(51, 34), E(32, 0),
644+ E(53, 25), E(24, 23), E(30, 51), E(24, 24), E(30, 59), E(21, 28),
645+ E(40, 38), E(57, 29), E(57, 31), E(31, 2), E(41, 13), E(58, 31),
646+ E(32, 8), E(12, 31), E( 4, 33), E(32, 12), E(34, 45), E(59, 41),
647+ E(31, 7), E(32, 14), E(13, 30), E( 9, 25), E(35, 18), E(26, 43),
648+ E(35, 20), E(37, 43), E(61, 35), E(37, 44), E(63, 1), E(26, 49),
649+ E(29, 42), E(41, 42), E(45, 34), E(33, 51), E(34, 42), E(47, 31),
650+ E(41, 36), E(22, 36), E(42, 29), E(35, 21), E(35, 22), E(23, 37),
651+ E(32, 44), E(35, 43), E(43, 25), E(32, 47), E( 7, 33), E(31, 45),
652+ E(41, 27), E(20, 31), E(31, 58), E(16, 31), E(13, 32), E(63, 31),
653+ E(25, 38), E(30, 43), E(33, 61), E(31, 43), E(41, 29), E(34, 23),
654+ E(39, 28), E(47, 32), E(40, 28), E(58, 32), E(59, 31), E(41, 34),
655+ E(33, 5), E( 3, 33), E(17, 32), E(61, 33), E(42, 33), E(21, 31),
656+ E(26, 35), E(35, 26), E(29, 36), E(26, 31), E(33, 38), E(30, 30),
657+ E(31, 32), E(33, 31), E(37, 30), E(31, 23), E(30, 42), E(26, 37),
658+ E(33, 26), E(27, 35), E(31, 36), E(27, 34), E(35, 37), E(29, 23),
659+ E(36, 38), E(61, 31), E(33, 40), E(37, 26), E(62, 32), E(35, 38),
660+ E(57, 32), E(31, 41), E(34, 26), E(34, 25), E(40, 32), E(35, 35),
661+ E(29, 34), E(32, 25), E(29, 30), E(28, 26), E(38, 18), E(23, 41),
662+ E(32, 20), E(29, 28), E(29, 25), E(28, 37), E(42, 32), E(33, 39),
663+ E(32, 26), E(31, 25), E(30, 40), E(35, 47), E(30, 45), E(30, 54),
664+ E(31, 1), E(32, 23), E(33, 25), E(42, 26), E(47, 34), E(39, 38),
665+ E(38, 14), E(40, 22), E(40, 24), E(51, 33), E(55, 34), E(56, 32),
666+ E(18, 32), E(21, 37), E(39, 21), E(39, 23), E(33, 49), E(17, 35),
667+ E(41, 23), E(23, 28), E(24, 39), E(43, 39), E(25, 23), E(31, 55),
668+ E(20, 33), E(25, 37), E(38, 38), E(25, 36), E(27, 37), E(29, 37),
669+ E( 4, 32), E(39, 33), E( 5, 32), E(28, 29), E(38, 24), E(17, 29),
670+ E(35, 39), E( 2, 32), E(38, 36), E(30, 29), E(29, 35), E(32, 34),
671+ E(32, 33), E(32, 32),
672+};
673+
674+const uint8_t ff_msmp4_mv_table0_lens[MSMPEG4_MV_TABLES_NB_ELEMS] = {
675+ 8, 12, 12, 13, 15, 15, 15, 15, 12, 15, 15, 15, 15, 14, 14, 14, 14, 14,
676+ 14, 11, 9, 8, 13, 14, 14, 14, 14, 13, 11, 12, 12, 12, 12, 10, 13, 13,
677+ 12, 12, 16, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
678+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 6, 6, 7,
679+ 8, 8, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
680+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
681+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
682+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
683+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
684+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
685+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16,
686+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
687+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15,
688+ 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 13, 12, 11, 10,
689+ 9, 9, 11, 13, 13, 14, 14, 13, 13, 13, 13, 13, 12, 16, 16, 15, 15, 15,
690+ 15, 15, 15, 15, 9, 10, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 11, 9,
691+ 8, 10, 11, 12, 14, 14, 13, 10, 13, 14, 14, 14, 14, 13, 11, 7, 5, 8,
692+ 9, 11, 12, 13, 16, 16, 16, 16, 16, 16, 16, 16, 11, 12, 16, 16, 16, 16,
693+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 8, 10, 16, 16, 16, 16,
694+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
695+ 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
696+ 14, 14, 11, 12, 13, 13, 11, 12, 13, 14, 14, 9, 9, 8, 10, 13, 13, 13,
697+ 14, 16, 17, 17, 15, 11, 10, 10, 8, 9, 11, 13, 15, 15, 15, 15, 15, 15,
698+ 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
699+ 14, 14, 12, 12, 8, 7, 11, 14, 14, 14, 14, 13, 13, 10, 10, 13, 14, 14,
700+ 14, 14, 14, 14, 14, 14, 13, 12, 8, 9, 11, 11, 14, 17, 17, 17, 17, 17,
701+ 17, 17, 17, 13, 13, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
702+ 17, 17, 17, 11, 11, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
703+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
704+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
705+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
706+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
707+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
708+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
709+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
710+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
711+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
712+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
713+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16,
714+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
715+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
716+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15,
717+ 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14,
718+ 14, 14, 4, 5, 10, 10, 9, 13, 13, 12, 11, 12, 14, 14, 14, 14, 11, 10,
719+ 14, 14, 14, 14, 14, 14, 13, 13, 13, 12, 12, 13, 13, 13, 13, 12, 11, 12,
720+ 12, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
721+ 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 13, 12, 12, 13, 13, 8,
722+ 12, 13, 13, 11, 12, 15, 16, 16, 14, 14, 14, 12, 13, 13, 12, 12, 11, 10,
723+ 8, 11, 13, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
724+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 10, 16, 16, 16, 16, 16, 16, 16, 16,
725+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
726+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
727+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
728+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15,
729+ 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
730+ 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13,
731+ 13, 13, 12, 12, 12, 9, 4, 5, 12, 13, 14, 14, 12, 12, 10, 12, 12, 14,
732+ 14, 14, 14, 14, 14, 13, 13, 13, 12, 12, 12, 10, 10, 10, 10, 14, 16, 16,
733+ 15, 13, 13, 13, 12, 12, 11, 11, 13, 15, 15, 15, 15, 12, 11, 15, 15, 15,
734+ 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
735+ 15, 14, 14, 14, 13, 12, 12, 11, 12, 12, 14, 14, 13, 13, 13, 10, 10, 6,
736+ 4, 1,
737+};
738+
739+/* motion vector table 1 */
740+
741+const uint16_t ff_msmp4_mv_table1[MSMPEG4_MV_TABLES_NB_ELEMS] = {
742+ E(32, 32), E(42, 39), E(35, 53), E( 3, 28), E(51, 39), E(35, 57),
743+ E(16, 46), E(35, 10), E(30, 52), E(63, 27), E(57, 35), E(39, 42),
744+ E(39, 45), E(25, 59), E(35, 15), E(51, 34), E(31, 9), E(48, 34),
745+ E( 2, 33), E( 6, 31), E(34, 49), E(30, 43), E(28, 42), E(33, 51),
746+ E(39, 27), E(33, 42), E(37, 25), E(60, 34), E(38, 60), E( 9, 38),
747+ E(38, 33), E(51, 32), E(30, 22), E(33, 23), E(32, 24), E(32, 26),
748+ E(32, 29), E(40, 29), E(27, 23), E(46, 29), E(31, 14), E( 9, 30),
749+ E(35, 45), E(29, 49), E(31, 11), E(47, 32), E(32, 48), E(39, 35),
750+ E(37, 31), E(25, 34), E(30, 25), E(24, 30), E(35, 25), E(61, 32),
751+ E(39, 24), E(16, 24), E(36, 23), E(50, 32), E(32, 45), E(19, 33),
752+ E(59, 33), E(29, 25), E(30, 36), E(63, 33), E(45, 39), E(31, 12),
753+ E(60, 29), E(14, 24), E(34, 0), E(42, 20), E(24, 16), E( 0, 28),
754+ E(37, 43), E(18, 35), E(61, 28), E(57, 1), E(30, 30), E(31, 33),
755+ E(31, 35), E(26, 32), E(37, 49), E(28, 4), E(53, 21), E(20, 42),
756+ E(46, 39), E(14, 29), E(47, 3), E(38, 44), E(38, 21), E(38, 53),
757+ E( 9, 55), E(34, 11), E(39, 5), E(43, 3), E(17, 39), E(39, 53),
758+ E(59, 28), E( 5, 25), E(27, 19), E( 0, 34), E(55, 31), E(46, 28),
759+ E(19, 35), E(37, 41), E(62, 30), E(34, 44), E(30, 18), E(16, 29),
760+ E(19, 34), E(49, 35), E(30, 41), E(25, 27), E(43, 32), E( 4, 32),
761+ E(34, 25), E(27, 25), E(33, 19), E(32, 41), E(25, 29), E(62, 31),
762+ E(24, 35), E(32, 38), E(30, 32), E(34, 33), E(34, 29), E(41, 36),
763+ E(12, 28), E(27, 21), E(41, 25), E(39, 26), E(30, 24), E(37, 21),
764+ E(14, 31), E( 5, 30), E(13, 34), E(35, 19), E(55, 34), E(30, 44),
765+ E(40, 36), E(40, 38), E(42, 25), E(31, 19), E(27, 36), E(30, 42),
766+ E(37, 27), E(31, 17), E(21, 33), E(45, 31), E(32, 44), E(39, 28),
767+ E(20, 33), E(46, 33), E(47, 31), E(35, 23), E(19, 31), E(33, 30),
768+ E(28, 32), E(36, 32), E(33, 32), E(34, 40), E( 8, 31), E(20, 28),
769+ E(35, 39), E(43, 33), E(25, 23), E(45, 37), E(35, 3), E(33, 55),
770+ E(35, 29), E(36, 41), E(54, 30), E(38, 22), E(27, 41), E(37, 24),
771+ E(62, 33), E(40, 26), E(15, 35), E(59, 35), E(49, 30), E( 1, 33),
772+ E(40, 33), E(32, 0), E(29, 37), E(32, 2), E( 3, 32), E(42, 32),
773+ E(49, 31), E(21, 34), E(21, 30), E(14, 32), E( 5, 31), E(28, 36),
774+ E(31, 21), E(51, 33), E(31, 55), E(29, 51), E(31, 38), E(62, 32),
775+ E(34, 47), E(34, 48), E(39, 38), E(24, 24), E(32, 30), E(29, 32),
776+ E(30, 34), E(35, 34), E(29, 15), E(25, 21), E(26, 36), E(33, 61),
777+ E(31, 26), E(32, 34), E(30, 33), E(27, 31), E(23, 35), E(29, 50),
778+ E(21, 25), E(31, 47), E(36, 37), E(35, 41), E(58, 31), E(29, 23),
779+ E(29, 41), E(21, 29), E(20, 30), E(33, 24), E(32, 22), E(42, 35),
780+ E(29, 46), E(10, 30), E(61, 29), E(33, 10), E(49, 34), E(35, 42),
781+ E(34, 45), E( 3, 29), E(38, 42), E(39, 22), E(29, 3), E( 7, 33),
782+ E(41, 27), E( 1, 34), E(30, 31), E(13, 32), E(28, 25), E(12, 32),
783+ E(40, 28), E(25, 35), E(31, 61), E(28, 31), E(29, 34), E(34, 35),
784+ E(28, 33), E(26, 33), E(35, 1), E( 4, 34), E(31, 58), E(33, 2),
785+ E(39, 37), E(21, 31), E(60, 33), E(23, 28), E(15, 34), E(38, 30),
786+ E(37, 33), E(34, 34), E(31, 28), E(23, 36), E(11, 35), E(37, 23),
787+ E(28, 23), E(35, 13), E(30, 58), E(30, 3), E(24, 26), E( 1, 63),
788+ E(43, 25), E(56, 31), E( 8, 34), E(32, 14), E(44, 33), E(32, 35),
789+ E(26, 31), E(31, 5), E(33, 49), E(31, 20), E(36, 33), E(32, 1),
790+ E(27, 33), E(31, 34), E(31, 30), E(28, 39), E(37, 36), E(43, 31),
791+ E(31, 59), E(34, 39), E(31, 27), E(34, 61), E(42, 38), E(24, 39),
792+ E(45, 25), E(30, 61), E(20, 29), E(23, 37), E( 8, 30), E(38, 41),
793+ E(22, 26), E(33, 48), E(17, 28), E(52, 33), E(34, 50), E(29, 21),
794+ E(32, 9), E(30, 23), E(49, 33), E(43, 35), E(28, 24), E(39, 39),
795+ E(33, 21), E(33, 34), E(32, 28), E(30, 29), E(25, 37), E(32, 11),
796+ E(48, 33), E( 2, 30), E(15, 31), E(20, 31), E(22, 35), E(53, 30),
797+ E(43, 37), E(44, 29), E(29, 30), E( 1, 29), E(27, 40), E(31, 6),
798+ E(41, 39), E(43, 28), E(41, 28), E(30, 19), E(31, 8), E(36, 22),
799+ E(30, 45), E(25, 28), E(31, 51), E(28, 40), E(32, 25), E(21, 35),
800+ E(24, 29), E(25, 25), E(15, 33), E(20, 32), E(40, 30), E(39, 34),
801+ E(31, 46), E(17, 35), E(22, 32), E(39, 31), E(33, 28), E(29, 29),
802+ E(21, 32), E(37, 37), E(43, 30), E(18, 30), E(32, 8), E(37, 32),
803+ E(31, 32), E(31, 22), E(31, 40), E(57, 32), E(38, 29), E(33, 37),
804+ E(35, 35), E(33, 63), E( 5, 34), E(55, 35), E(31, 10), E(33, 58),
805+ E(30, 17), E(40, 37), E(23, 39), E(15, 30), E(29, 18), E(34, 54),
806+ E(34, 14), E(59, 29), E(34, 16), E(30, 59), E(11, 30), E(13, 35),
807+ E(38, 23), E( 5, 35), E(24, 28), E(33, 15), E(37, 30), E(25, 31),
808+ E(36, 40), E(13, 33), E(33, 45), E(31, 49), E(32, 16), E(42, 31),
809+ E(25, 33), E(32, 36), E(39, 25), E(11, 32), E(33, 5), E(61, 31),
810+ E(63, 32), E(31, 4), E( 0, 30), E(30, 47), E(32, 62), E(37, 29),
811+ E(31, 2), E(42, 36), E( 5, 29), E(30, 55), E(29, 20), E(29, 35),
812+ E(34, 12), E(10, 31), E(44, 35), E(30, 14), E(63, 29), E(35, 18),
813+ E(12, 34), E( 3, 34), E(33, 47), E(32, 51), E(39, 36), E(37, 39),
814+ E(32, 53), E(32, 10), E(29, 24), E(17, 29), E(32, 20), E(29, 39),
815+ E(33, 27), E(31, 36), E(32, 27), E(31, 3), E(30, 39), E(44, 32),
816+ E(31, 37), E( 5, 33), E(44, 30), E(46, 31), E(32, 40), E(36, 25),
817+ E(35, 40), E(26, 38), E(37, 38), E(33, 38), E(25, 32), E( 2, 32),
818+ E(58, 33), E(26, 24), E(15, 29), E(31, 1), E(31, 25), E(17, 26),
819+ E(25, 22), E(34, 2), E(43, 27), E(39, 23), E(34, 8), E(56, 30),
820+ E(29, 55), E(23, 38), E(30, 60), E(12, 31), E(30, 4), E(10, 34),
821+ E(35, 49), E( 9, 34), E(24, 27), E(58, 34), E(10, 33), E(12, 30),
822+ E(54, 31), E(32, 56), E(34, 23), E(38, 27), E( 8, 32), E(22, 31),
823+ E(34, 24), E(36, 36), E(17, 32), E(38, 36), E(33, 25), E(32, 33),
824+ E(32, 31), E(58, 32), E(38, 28), E(38, 37), E(38, 26), E(22, 29),
825+ E(29, 43), E(32, 61), E(25, 36), E(16, 33), E(35, 24), E(32, 55),
826+ E(35, 43), E(33, 9), E(43, 29), E(18, 34), E(46, 34), E(38, 24),
827+ E(35, 26), E(32, 6), E(60, 31), E( 1, 32), E(23, 33), E(30, 35),
828+ E(27, 32), E(33, 26), E(41, 31), E(35, 38), E(33, 54), E(37, 42),
829+ E(20, 35), E(41, 38), E(35, 46), E(29, 44), E(18, 26), E(61, 27),
830+ E(30, 9), E(40, 39), E(24, 25), E(39, 21), E(39, 32), E(53, 29),
831+ E(62, 28), E(26, 42), E(29, 13), E(33, 0), E(34, 5), E(53, 34),
832+ E(49, 37), E(21, 28), E(27, 24), E(11, 29), E(63, 63), E(50, 33),
833+ E(33, 18), E(18, 33), E(53, 33), E(60, 30), E(13, 31), E(32, 50),
834+ E(36, 24), E(24, 34), E(27, 34), E(32, 58), E(38, 35), E(35, 28),
835+ E(16, 32), E(33, 60), E(51, 30), E(32, 4), E(36, 39), E(43, 34),
836+ E(45, 30), E(27, 39), E(45, 33), E(42, 33), E(30, 38), E(32, 17),
837+ E(31, 43), E(20, 26), E(26, 22), E(23, 27), E( 7, 29), E(13, 25),
838+ E( 6, 33), E(47, 25), E(29, 61), E(30, 0), E( 9, 35), E(51, 25),
839+ E(22, 36), E(34, 15), E(21, 27), E(25, 40), E(33, 53), E(32, 37),
840+ E(56, 33), E(57, 3), E(30, 10), E(38, 16), E(51, 37), E(51, 38),
841+ E(38, 18), E(63, 30), E(28, 46), E(40, 27), E(35, 9), E(33, 6),
842+ E(42, 28), E(29, 22), E(24, 38), E(30, 2), E(25, 26), E(31, 63),
843+ E(52, 32), E(31, 57), E(29, 26), E(35, 31), E(32, 5), E(41, 32),
844+ E(35, 21), E(38, 39), E( 4, 31), E(30, 40), E(17, 31), E( 9, 33),
845+ E(22, 28), E(34, 18), E( 4, 30), E(17, 34), E(28, 22), E(55, 33),
846+ E(42, 29), E(40, 34), E(46, 32), E(38, 34), E(48, 32), E(63, 31),
847+ E(23, 31), E(39, 33), E(33, 3), E( 3, 31), E(18, 29), E(33, 62),
848+ E(33, 8), E(24, 42), E(58, 28), E(58, 29), E(34, 3), E(49, 25),
849+ E(29, 16), E(43, 26), E( 4, 29), E( 1, 35), E( 4, 28), E(42, 27),
850+ E(35, 51), E(35, 61), E(30, 48), E(17, 37), E( 5, 9), E(56, 34),
851+ E(25, 41), E(17, 30), E(20, 34), E(47, 35), E(34, 21), E(33, 13),
852+ E(16, 34), E(40, 35), E(32, 19), E(28, 35), E(33, 36), E(36, 30),
853+ E(25, 39), E(16, 30), E(42, 30), E(19, 32), E(30, 46), E(53, 32),
854+ E(32, 23), E(29, 42), E(10, 32), E(11, 31), E(14, 33), E(34, 38),
855+ E(32, 39), E(41, 29), E(26, 26), E(61, 7), E(25, 49), E(22, 33),
856+ E(28, 38), E(36, 38), E(45, 32), E(34, 27), E(28, 30), E(34, 28),
857+ E(33, 59), E(37, 45), E(36, 20), E(55, 29), E(28, 21), E(35, 5),
858+ E(29, 5), E(50, 29), E(48, 28), E(52, 34), E( 2, 29), E(42, 24),
859+ E(34, 10), E(40, 24), E(46, 35), E(46, 36), E(43, 38), E(33, 11),
860+ E( 4, 33), E(33, 40), E(32, 18), E(36, 34), E(27, 35), E(35, 22),
861+ E(35, 55), E(29, 11), E(29, 38), E(41, 33), E(29, 28), E( 7, 32),
862+ E(44, 31), E(26, 25), E(39, 29), E(32, 3), E(16, 31), E(31, 53),
863+ E(26, 27), E(34, 43), E(38, 25), E(29, 40), E(41, 35), E(35, 27),
864+ E(36, 29), E(38, 31), E(29, 27), E(32, 43), E(27, 29), E(30, 37),
865+ E(24, 32), ESCAPE, E(32, 63), E(24, 31), E(42, 34), E(48, 36),
866+ E(20, 38), E(29, 53), E(31, 54), E(61, 33), E(41, 26), E( 7, 30),
867+ E(30, 49), E(35, 20), E(19, 27), E(14, 30), E(21, 39), E( 8, 33),
868+ E(39, 41), E(39, 49), E(40, 22), E(46, 38), E(55, 38), E(34, 4),
869+ E( 6, 30), E(30, 8), E(34, 9), E(37, 3), E(25, 24), E(37, 22),
870+ E(33, 50), E(22, 37), E(44, 36), E(52, 31), E(17, 27), E(35, 2),
871+ E(31, 50), E(30, 21), E(24, 36), E(35, 33), E(22, 38), E(61, 30),
872+ E(32, 12), E( 9, 31), E(45, 34), E(34, 20), E(31, 15), E(19, 29),
873+ E( 9, 32), E(31, 62), E(18, 32), E(33, 17), E(33, 1), E(37, 34),
874+ E(32, 15), E(22, 30), E(26, 30), E(59, 31), E(29, 9), E(36, 42),
875+ E(46, 30), E(31, 13), E(35, 17), E(54, 32), E(29, 19), E(57, 31),
876+ E(30, 20), E(50, 31), E( 3, 30), E(31, 7), E(63, 1), E(34, 17),
877+ E(47, 34), E(41, 37), E(35, 63), E(40, 25), E(25, 30), E(37, 28),
878+ E( 1, 31), E(26, 28), E(22, 34), E(35, 37), E(34, 32), E(60, 32),
879+ E(27, 30), E(37, 19), E(28, 44), E(30, 1), E(50, 28), E(14, 28),
880+ E(28, 48), E(55, 30), E( 6, 34), E(23, 41), E(19, 41), E(14, 38),
881+ E(30, 12), E( 3, 27), E(30, 15), E(28, 0), E(28, 16), E(61, 34),
882+ E(61, 35), E(47, 38), E(45, 28), E(48, 29), E(40, 40), E(40, 42),
883+ E(34, 51), E(34, 52), E(25, 45), E(30, 54), E(29, 59), E(35, 59),
884+ E( 4, 42), E(51, 31), E(18, 31), E(31, 44), E(14, 34), E(37, 26),
885+ E(36, 35), E(37, 35), E(30, 26), E(31, 41), E(31, 39), E(23, 32),
886+ E(23, 29), E(38, 40), E(31, 16), E(24, 37), E(32, 52), E(31, 48),
887+ E(50, 30), E(28, 34), E(32, 21), E(33, 20), E(31, 18), E(49, 32),
888+ E(34, 37), E(33, 29), E(31, 29), E(40, 31), E( 3, 33), E(28, 27),
889+ E(26, 35), E(28, 28), E(33, 39), E(34, 26), E(26, 44), E(53, 37),
890+ E(50, 26), E(26, 46), E(41, 24), E(27, 15), E(59, 39), E(27, 22),
891+ E(29, 31), E(38, 46), E(39, 19), E( 3, 35), E(50, 38), E(43, 17),
892+ E(47, 37), E(23, 23), E(33, 52), E(55, 55), E(35, 50), E(21, 37),
893+ E(23, 26), E(35, 11), E(61, 37), E(33, 12), E(46, 24), E(52, 30),
894+ E(35, 16), E(34, 13), E(24, 22), E(30, 13), E(43, 36), E(16, 35),
895+ E(37, 40), E(21, 41), E( 2, 34), E(54, 33), E(27, 38), E( 9, 29),
896+ E(33, 7), E(23, 25), E(19, 30), E(32, 54), E(29, 45), E(29, 47),
897+ E(33, 46), E(28, 41), E(27, 27), E(32, 49), E(39, 30), E(33, 31),
898+ E(59, 32), E(32, 42), E(33, 22), E(47, 29), E(49, 29), E(32, 59),
899+ E(40, 32), E(31, 24), E(27, 37), E(23, 34), E(28, 37), E(36, 26),
900+ E(32, 7), E(38, 32), E(29, 33), E(15, 32), E(30, 16), E(47, 30),
901+ E(33, 14), E(27, 26), E(25, 38), E(54, 34), E(44, 34), E(45, 29),
902+ E(50, 34), E(58, 30), E(51, 29), E(48, 30), E(33, 57), E(59, 30),
903+ E( 6, 32), E(34, 22), E(27, 28), E(31, 45), E(30, 27), E(24, 33),
904+ E(26, 29), E(33, 4), E(24, 41), E(45, 26), E(23, 30), E( 2, 31),
905+ E(28, 29), E(35, 36), E(30, 28), E(34, 53), E(30, 51), E(55, 5),
906+ E(55, 21), E( 1, 30), E(29, 2), E(29, 63), E(26, 41), E(28, 20),
907+ E(25, 1), E(31, 56), E(36, 21), E(22, 24), E(17, 25), E(30, 5),
908+ E(52, 28), E( 2, 35), E(44, 26), E(44, 28), E(57, 30), E(26, 18),
909+ E(62, 29), E(41, 23), E(39, 40), E(57, 34), E(26, 20), E(46, 42),
910+ E(49, 39), E(11, 34), E(16, 28), E(19, 61), E( 5, 38), E(34, 46),
911+ E(57, 33), E(13, 29), E(26, 39), E(33, 44), E(13, 30), E(48, 31),
912+ E(30, 50), E(11, 33), E( 7, 31), E(56, 32), E(34, 19), E(33, 43),
913+ E(32, 46), E(34, 41), E(41, 30), E(36, 28), E(34, 31), E(33, 33),
914+ E(33, 35), E(26, 34), E(28, 26), E(32, 13), E(41, 34), E( 0, 32),
915+ E(32, 57), E(35, 30), E(35, 32), E(55, 32), E(26, 40), E( 0, 31),
916+ E(26, 37), E(35, 47), E( 1, 1), E(51, 35), E(33, 16), E(53, 31),
917+ E(31, 0), E(45, 35), E(12, 33), E(29, 1), E(29, 17), E(36, 27),
918+ E( 5, 32), E(38, 38), E(59, 27), E(38, 62), E(39, 9), E(58, 36),
919+ E(34, 42), E(31, 42), E(36, 31), E(47, 33), E(32, 47), E(17, 33),
920+ E(31, 60), E(31, 23), E(33, 41), E(34, 30), E(34, 36), E(32, 60),
921+ E(29, 36), E(38, 17), E(25, 9), E(49, 49), E(50, 24), E(22, 25),
922+ E(28, 54), E(59, 34), E( 9, 39), E(59, 37), E( 7, 3), E(28, 1),
923+ E(55, 25), E(17, 38), E( 4, 38), E(35, 44), E(50, 35), E(21, 36),
924+ E(29, 12), E(44, 60), E(47, 36), E(18, 38), E(24, 40), E(19, 25),
925+ E(25, 43), E(31, 31),
926+};
927+
928+const uint8_t ff_msmp4_mv_table1_lens[MSMPEG4_MV_TABLES_NB_ELEMS] = {
929+ 2, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14,
930+ 14, 14, 14, 14, 14, 14, 13, 13, 13, 14, 15, 15, 11, 13, 13, 12, 11, 10,
931+ 8, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 12, 10, 12, 12, 12, 12, 10,
932+ 14, 15, 15, 13, 13, 13, 12, 12, 11, 13, 15, 15, 15, 15, 15, 15, 15, 15,
933+ 15, 15, 15, 15, 9, 6, 9, 10, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
934+ 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14,
935+ 14, 14, 13, 13, 11, 11, 12, 13, 13, 11, 12, 13, 13, 10, 7, 8, 10, 14,
936+ 15, 15, 14, 14, 12, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13,
937+ 13, 13, 12, 13, 13, 13, 13, 13, 13, 13, 13, 8, 9, 9, 5, 13, 14, 14,
938+ 12, 12, 14, 14, 14, 14, 10, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13,
939+ 12, 12, 12, 11, 10, 11, 13, 13, 13, 13, 12, 12, 12, 13, 14, 14, 11, 12,
940+ 14, 14, 14, 14, 7, 8, 9, 10, 14, 14, 13, 12, 11, 7, 8, 10, 13, 14,
941+ 14, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 13, 14, 14, 14, 14, 14, 14,
942+ 14, 14, 14, 14, 14, 14, 14, 14, 8, 13, 13, 13, 13, 12, 12, 10, 10, 10,
943+ 10, 11, 14, 14, 13, 13, 13, 12, 13, 14, 14, 11, 10, 9, 10, 14, 14, 14,
944+ 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 8, 11, 12, 13, 13, 10, 10,
945+ 10, 8, 8, 13, 13, 12, 12, 12, 10, 14, 14, 14, 14, 14, 14, 14, 14, 14,
946+ 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 12, 8, 9, 10, 13, 13,
947+ 13, 13, 13, 13, 14, 14, 14, 14, 10, 14, 14, 14, 14, 14, 14, 14, 14, 14,
948+ 14, 13, 13, 13, 9, 13, 13, 13, 13, 12, 12, 12, 13, 13, 11, 10, 10, 10,
949+ 11, 13, 13, 13, 13, 9, 4, 12, 12, 12, 12, 10, 10, 13, 14, 14, 14, 14,
950+ 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 11, 10,
951+ 13, 13, 13, 13, 12, 12, 10, 9, 13, 13, 12, 11, 11, 13, 14, 14, 12, 11,
952+ 12, 14, 14, 14, 14, 10, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13,
953+ 13, 13, 13, 13, 12, 12, 10, 10, 9, 11, 12, 12, 10, 12, 13, 13, 11, 13,
954+ 13, 13, 13, 11, 9, 11, 13, 14, 14, 12, 10, 14, 14, 14, 14, 14, 14, 14,
955+ 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 12,
956+ 12, 12, 12, 12, 10, 5, 4, 12, 12, 13, 13, 13, 13, 10, 13, 13, 13, 13,
957+ 13, 13, 13, 13, 13, 13, 12, 12, 12, 11, 11, 10, 9, 11, 11, 12, 14, 14,
958+ 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 9, 14, 14, 14, 14, 14, 14, 14,
959+ 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 12, 12, 11,
960+ 12, 13, 13, 10, 13, 13, 13, 13, 12, 12, 11, 12, 12, 14, 14, 14, 14, 14,
961+ 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 9, 14, 14, 14, 14, 14, 14,
962+ 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 12, 8, 10, 10,
963+ 13, 13, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 11, 12, 12,
964+ 11, 10, 11, 11, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
965+ 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 10, 10,
966+ 13, 13, 12, 12, 13, 13, 10, 13, 13, 13, 13, 11, 9, 12, 13, 14, 14, 12,
967+ 12, 12, 12, 11, 10, 10, 12, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
968+ 14, 14, 14, 14, 14, 13, 13, 12, 12, 10, 11, 13, 14, 14, 12, 11, 11, 12,
969+ 13, 13, 11, 9, 13, 13, 13, 13, 13, 13, 12, 11, 11, 10, 11, 11, 11, 11,
970+ 10, 4, 11, 11, 12, 14, 14, 14, 14, 11, 14, 14, 14, 14, 14, 14, 14, 14,
971+ 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
972+ 13, 13, 13, 8, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 11,
973+ 12, 12, 11, 11, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
974+ 13, 13, 14, 14, 11, 12, 12, 12, 12, 11, 6, 10, 11, 14, 14, 14, 14, 14,
975+ 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
976+ 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 11, 11, 11, 11, 10, 10,
977+ 12, 13, 13, 13, 13, 13, 13, 10, 10, 13, 13, 12, 11, 8, 8, 11, 11, 12,
978+ 12, 11, 10, 11, 14, 14, 14, 14, 14, 14, 14, 14, 8, 14, 14, 14, 14, 14,
979+ 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
980+ 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 11, 5,
981+ 10, 11, 12, 13, 13, 10, 10, 11, 12, 12, 12, 12, 11, 9, 8, 12, 13, 13,
982+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 11, 11,
983+ 12, 13, 14, 14, 12, 12, 11, 11, 10, 14, 14, 14, 14, 14, 14, 14, 14, 14,
984+ 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
985+ 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12,
986+ 12, 12, 12, 11, 7, 5, 8, 11, 12, 12, 12, 12, 11, 9, 7, 13, 13, 13,
987+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 10, 12, 14, 14, 14, 14,
988+ 12, 12, 9, 12, 12, 12, 12, 11, 11, 8, 10, 10, 11, 14, 14, 14, 14, 14,
989+ 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
990+ 14, 4,
991+};
992+
484993 static const uint16_t table0_mv_code[1100] = {
485994 0x0001, 0x0003, 0x0005, 0x0007, 0x0003, 0x0008, 0x000c, 0x0001,
486995 0x0002, 0x001b, 0x0006, 0x000b, 0x0015, 0x0002, 0x000e, 0x000f,
@@ -1045,7 +1554,6 @@ static const uint8_t table0_mvy[1099] = { · 558 unmodified lines
10451554 25, 27, 28,
10461555 };
10471556
1048−/* motion vector table 1 */
10491557 static const uint16_t table1_mv_code[1100] = {
10501558 0x0000, 0x0007, 0x0009, 0x000f, 0x000a, 0x0011, 0x001a, 0x001c,
10511559 0x0011, 0x0031, 0x0025, 0x002d, 0x002f, 0x006f, 0x0075, 0x0041,
libavcodec/msmpeg4data.h+6−1
@@ -58,7 +58,12 @@ extern const uint8_t ff_wmv1_y_dc_scale_table[32]; · 57 unmodified lines
5858 extern const uint8_t ff_wmv1_c_dc_scale_table[32];
5959 extern const uint8_t ff_old_ff_y_dc_scale_table[32];
6060
61−#define MSMPEG4_MV_TABLES_NB_ELEMS 1099
61+#define MSMPEG4_MV_TABLES_NB_ELEMS 1100
62+/// The entries are of the form (8 << mvx) | mvy. Escape value is zero.
63+extern const uint16_t ff_msmp4_mv_table0[MSMPEG4_MV_TABLES_NB_ELEMS];
64+extern const uint8_t ff_msmp4_mv_table0_lens[MSMPEG4_MV_TABLES_NB_ELEMS];
65+extern const uint16_t ff_msmp4_mv_table1[MSMPEG4_MV_TABLES_NB_ELEMS];
66+extern const uint8_t ff_msmp4_mv_table1_lens[MSMPEG4_MV_TABLES_NB_ELEMS];
6267 extern MVTable ff_mv_tables[2];
6368
6469 extern const uint8_t ff_v2_mb_type[8][2];
libavcodec/msmpeg4dec.c+20−22
@@ -46,6 +46,8 @@ · 45 unmodified lines
4646
4747 #define DEFAULT_INTER_INDEX 3
4848
49+static const VLCElem *mv_tables[2];
50+
4951 static inline int msmpeg4v1_pred_dc(MpegEncContext * s, int n,
5052 int32_t **dc_val_ptr)
5153 {
@@ -300,7 +302,6 @@ static av_cold void msmpeg4_decode_init_static(void) · 248 unmodified lines
300302 {
301303 static VLCElem vlc_buf[3714 + 2694 + 1636 + 2648 + 1532 + 2488];
302304 VLCInitState state = VLC_INIT_STATE(vlc_buf);
303− MVTable *mv;
304305
305306 INIT_FIRST_VLC_RL(ff_rl_table[0], 642);
306307 INIT_FIRST_VLC_RL(ff_rl_table[1], 1104);
@@ -326,18 +327,16 @@ static av_cold void msmpeg4_decode_init_static(void) · 19 unmodified lines
326327 &ff_v2_mb_type[0][1], 2, 1,
327328 &ff_v2_mb_type[0][0], 2, 1, 0);
328329
329− mv = &ff_mv_tables[0];
330− mv->vlc = ff_vlc_init_tables_sparse(&state, MV_VLC_BITS,
331− MSMPEG4_MV_TABLES_NB_ELEMS + 1,
332− mv->table_mv_bits, 1, 1,
333− mv->table_mv_code, 2, 2,
334− NULL, 0, 0, 0);
335− mv = &ff_mv_tables[1];
336− mv->vlc = ff_vlc_init_tables_sparse(&state, MV_VLC_BITS,
337− MSMPEG4_MV_TABLES_NB_ELEMS + 1,
338− mv->table_mv_bits, 1, 1,
339− mv->table_mv_code, 2, 2,
340− NULL, 0, 0, 0);
330+ mv_tables[0] = ff_vlc_init_tables_from_lengths(&state, MV_VLC_BITS,
331+ MSMPEG4_MV_TABLES_NB_ELEMS,
332+ ff_msmp4_mv_table0_lens, 1,
333+ ff_msmp4_mv_table0, 2, 2,
334+ 0, 0);
335+ mv_tables[1] = ff_vlc_init_tables_from_lengths(&state, MV_VLC_BITS,
336+ MSMPEG4_MV_TABLES_NB_ELEMS,
337+ ff_msmp4_mv_table1_lens, 1,
338+ ff_msmp4_mv_table1, 2, 2,
339+ 0, 0);
341340
342341 for (unsigned i = 0; i < 4; i++) {
343342 ff_mb_non_intra_vlc[i] =
@@ -817,18 +816,17 @@ int ff_msmpeg4_decode_block(MpegEncContext * s, int16_t * block, · 473 unmodified lines
817816
818817 void ff_msmpeg4_decode_motion(MpegEncContext *s, int *mx_ptr, int *my_ptr)
819818 {
820− const MVTable *mv;
821− int code, mx, my;
822−
823− mv = &ff_mv_tables[s->mv_table_index];
819+ const VLCElem *const mv_vlc = mv_tables[s->mv_table_index];
820+ int sym, mx, my;
824821
825− code = get_vlc2(&s->gb, mv->vlc, MV_VLC_BITS, 2);
826− if (code == MSMPEG4_MV_TABLES_NB_ELEMS) {
822+ sym = get_vlc2(&s->gb, mv_vlc, MV_VLC_BITS, 2);
823+ if (sym) {
824+ mx = sym >> 8;
825+ my = sym & 0xFF;
826+ } else {
827+ /* Escape */
827828 mx = get_bits(&s->gb, 6);
828829 my = get_bits(&s->gb, 6);
829− } else {
830− mx = mv->table_mvx[code];
831− my = mv->table_mvy[code];
832830 }
833831
834832 mx += *mx_ptr - 32;
libavcodec/msmpeg4enc.c+1−1
@@ -67,7 +67,7 @@ static av_cold void init_mv_table(const MVTable *tab, uint32_t mv_vector_table[4 · 66 unmodified lines
6767 mv_vector_table[i] = (escape_code << 20) | (i << 8) | escape_length;
6868 }
6969
70− for (i = 0; i < MSMPEG4_MV_TABLES_NB_ELEMS; i++) {
70+ for (i = 0; i < MSMPEG4_MV_TABLES_NB_ELEMS - 1; i++) {
7171 x = tab->table_mvx[i];
7272 y = tab->table_mvy[i];
7373 mv_vector_table[(x << 6) | y] = (tab->table_mv_code[i] << 8) | tab->table_mv_bits[i];

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