X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fcavsdec.c;h=fbbd04803a70bbc34d8642fed646f4fc23107b5d;hb=e76f2d11970484266e67a12961f2339a5c2fccf9;hp=458fcf2bb57e86b2c2014942c6bf8733b89e4fec;hpb=470de55aa17cb933a21f7e4c4015202eaba7277f;p=ffmpeg diff --git a/libavcodec/cavsdec.c b/libavcodec/cavsdec.c index 458fcf2bb57..fbbd04803a7 100644 --- a/libavcodec/cavsdec.c +++ b/libavcodec/cavsdec.c @@ -2,25 +2,25 @@ * Chinese AVS video (AVS1-P2, JiZhun profile) decoder. * Copyright (c) 2006 Stefan Gehrer * - * This file is part of FFmpeg. + * This file is part of Libav. * - * FFmpeg is free software; you can redistribute it and/or + * Libav is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * - * FFmpeg is distributed in the hope that it will be useful, + * Libav is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software + * License along with Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** - * @file libavcodec/cavsdec.c + * @file * Chinese AVS video (AVS1-P2, JiZhun profile) decoder * @author Stefan Gehrer */ @@ -29,38 +29,448 @@ #include "get_bits.h" #include "golomb.h" #include "cavs.h" +#include "internal.h" +#include "mpeg12data.h" +#include "mpegvideo.h" static const uint8_t mv_scan[4] = { - MV_FWD_X0,MV_FWD_X1, - MV_FWD_X2,MV_FWD_X3 + MV_FWD_X0, MV_FWD_X1, + MV_FWD_X2, MV_FWD_X3 }; static const uint8_t cbp_tab[64][2] = { - {63, 0},{15,15},{31,63},{47,31},{ 0,16},{14,32},{13,47},{11,13}, - { 7,14},{ 5,11},{10,12},{ 8, 5},{12,10},{61, 7},{ 4,48},{55, 3}, - { 1, 2},{ 2, 8},{59, 4},{ 3, 1},{62,61},{ 9,55},{ 6,59},{29,62}, - {45,29},{51,27},{23,23},{39,19},{27,30},{46,28},{53, 9},{30, 6}, - {43,60},{37,21},{60,44},{16,26},{21,51},{28,35},{19,18},{35,20}, - {42,24},{26,53},{44,17},{32,37},{58,39},{24,45},{20,58},{17,43}, - {18,42},{48,46},{22,36},{33,33},{25,34},{49,40},{40,52},{36,49}, - {34,50},{50,56},{52,25},{54,22},{41,54},{56,57},{38,41},{57,38} + { 63, 0 }, { 15, 15 }, { 31, 63 }, { 47, 31 }, { 0, 16 }, { 14, 32 }, { 13, 47 }, { 11, 13 }, + { 7, 14 }, { 5, 11 }, { 10, 12 }, { 8, 5 }, { 12, 10 }, { 61, 7 }, { 4, 48 }, { 55, 3 }, + { 1, 2 }, { 2, 8 }, { 59, 4 }, { 3, 1 }, { 62, 61 }, { 9, 55 }, { 6, 59 }, { 29, 62 }, + { 45, 29 }, { 51, 27 }, { 23, 23 }, { 39, 19 }, { 27, 30 }, { 46, 28 }, { 53, 9 }, { 30, 6 }, + { 43, 60 }, { 37, 21 }, { 60, 44 }, { 16, 26 }, { 21, 51 }, { 28, 35 }, { 19, 18 }, { 35, 20 }, + { 42, 24 }, { 26, 53 }, { 44, 17 }, { 32, 37 }, { 58, 39 }, { 24, 45 }, { 20, 58 }, { 17, 43 }, + { 18, 42 }, { 48, 46 }, { 22, 36 }, { 33, 33 }, { 25, 34 }, { 49, 40 }, { 40, 52 }, { 36, 49 }, + { 34, 50 }, { 50, 56 }, { 52, 25 }, { 54, 22 }, { 41, 54 }, { 56, 57 }, { 38, 41 }, { 57, 38 } }; +static const uint8_t scan3x3[4] = { 4, 5, 7, 8 }; + +static const uint8_t cavs_chroma_qp[64] = { + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, + 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, + 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 42, 43, 43, 44, 44, + 45, 45, 46, 46, 47, 47, 48, 48, 48, 49, 49, 49, 50, 50, 50, 51 +}; + +static const uint8_t dequant_shift[64] = { + 14, 14, 14, 14, 14, 14, 14, 14, + 13, 13, 13, 13, 13, 13, 13, 13, + 13, 12, 12, 12, 12, 12, 12, 12, + 11, 11, 11, 11, 11, 11, 11, 11, + 11, 10, 10, 10, 10, 10, 10, 10, + 10, 9, 9, 9, 9, 9, 9, 9, + 9, 8, 8, 8, 8, 8, 8, 8, + 7, 7, 7, 7, 7, 7, 7, 7 +}; + +static const uint16_t dequant_mul[64] = { + 32768, 36061, 38968, 42495, 46341, 50535, 55437, 60424, + 32932, 35734, 38968, 42495, 46177, 50535, 55109, 59933, + 65535, 35734, 38968, 42577, 46341, 50617, 55027, 60097, + 32809, 35734, 38968, 42454, 46382, 50576, 55109, 60056, + 65535, 35734, 38968, 42495, 46320, 50515, 55109, 60076, + 65535, 35744, 38968, 42495, 46341, 50535, 55099, 60087, + 65535, 35734, 38973, 42500, 46341, 50535, 55109, 60097, + 32771, 35734, 38965, 42497, 46341, 50535, 55109, 60099 +}; + +#define EOB 0, 0, 0 + +static const struct dec_2dvlc intra_dec[7] = { + { + { //level / run / table_inc + { 1, 1, 1 }, { -1, 1, 1 }, { 1, 2, 1 }, { -1, 2, 1 }, { 1, 3, 1 }, { -1, 3, 1 }, + { 1, 4, 1 }, { -1, 4, 1 }, { 1, 5, 1 }, { -1, 5, 1 }, { 1, 6, 1 }, { -1, 6, 1 }, + { 1, 7, 1 }, { -1, 7, 1 }, { 1, 8, 1 }, { -1, 8, 1 }, { 1, 9, 1 }, { -1, 9, 1 }, + { 1, 10, 1 }, { -1, 10, 1 }, { 1, 11, 1 }, { -1, 11, 1 }, { 2, 1, 2 }, { -2, 1, 2 }, + { 1, 12, 1 }, { -1, 12, 1 }, { 1, 13, 1 }, { -1, 13, 1 }, { 1, 14, 1 }, { -1, 14, 1 }, + { 1, 15, 1 }, { -1, 15, 1 }, { 2, 2, 2 }, { -2, 2, 2 }, { 1, 16, 1 }, { -1, 16, 1 }, + { 1, 17, 1 }, { -1, 17, 1 }, { 3, 1, 3 }, { -3, 1, 3 }, { 1, 18, 1 }, { -1, 18, 1 }, + { 1, 19, 1 }, { -1, 19, 1 }, { 2, 3, 2 }, { -2, 3, 2 }, { 1, 20, 1 }, { -1, 20, 1 }, + { 1, 21, 1 }, { -1, 21, 1 }, { 2, 4, 2 }, { -2, 4, 2 }, { 1, 22, 1 }, { -1, 22, 1 }, + { 2, 5, 2 }, { -2, 5, 2 }, { 1, 23, 1 }, { -1, 23, 1 }, { EOB } + }, + //level_add + { 0, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, -1, -1, -1 }, + 2, //golomb_order + 0, //inc_limit + 23, //max_run + }, + { + { //level / run + { 1, 1, 0 }, { -1, 1, 0 }, { 1, 2, 0 }, { -1, 2, 0 }, { 2, 1, 1 }, { -2, 1, 1 }, + { 1, 3, 0 }, { -1, 3, 0 }, { EOB }, { 1, 4, 0 }, { -1, 4, 0 }, { 1, 5, 0 }, + { -1, 5, 0 }, { 1, 6, 0 }, { -1, 6, 0 }, { 3, 1, 2 }, { -3, 1, 2 }, { 2, 2, 1 }, + { -2, 2, 1 }, { 1, 7, 0 }, { -1, 7, 0 }, { 1, 8, 0 }, { -1, 8, 0 }, { 1, 9, 0 }, + { -1, 9, 0 }, { 2, 3, 1 }, { -2, 3, 1 }, { 4, 1, 2 }, { -4, 1, 2 }, { 1, 10, 0 }, + { -1, 10, 0 }, { 1, 11, 0 }, { -1, 11, 0 }, { 2, 4, 1 }, { -2, 4, 1 }, { 3, 2, 2 }, + { -3, 2, 2 }, { 1, 12, 0 }, { -1, 12, 0 }, { 2, 5, 1 }, { -2, 5, 1 }, { 5, 1, 3 }, + { -5, 1, 3 }, { 1, 13, 0 }, { -1, 13, 0 }, { 2, 6, 1 }, { -2, 6, 1 }, { 1, 14, 0 }, + { -1, 14, 0 }, { 2, 7, 1 }, { -2, 7, 1 }, { 2, 8, 1 }, { -2, 8, 1 }, { 3, 3, 2 }, + { -3, 3, 2 }, { 6, 1, 3 }, { -6, 1, 3 }, { 1, 15, 0 }, { -1, 15, 0 } + }, + //level_add + { 0, 7, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, + 2, //golomb_order + 1, //inc_limit + 15, //max_run + }, + { + { //level / run + { 1, 1, 0 }, { -1, 1, 0 }, { 2, 1, 0 }, { -2, 1, 0 }, { 1, 2, 0 }, { -1, 2, 0 }, + { 3, 1, 1 }, { -3, 1, 1 }, { EOB }, { 1, 3, 0 }, { -1, 3, 0 }, { 2, 2, 0 }, + { -2, 2, 0 }, { 4, 1, 1 }, { -4, 1, 1 }, { 1, 4, 0 }, { -1, 4, 0 }, { 5, 1, 2 }, + { -5, 1, 2 }, { 1, 5, 0 }, { -1, 5, 0 }, { 3, 2, 1 }, { -3, 2, 1 }, { 2, 3, 0 }, + { -2, 3, 0 }, { 1, 6, 0 }, { -1, 6, 0 }, { 6, 1, 2 }, { -6, 1, 2 }, { 2, 4, 0 }, + { -2, 4, 0 }, { 1, 7, 0 }, { -1, 7, 0 }, { 4, 2, 1 }, { -4, 2, 1 }, { 7, 1, 2 }, + { -7, 1, 2 }, { 3, 3, 1 }, { -3, 3, 1 }, { 2, 5, 0 }, { -2, 5, 0 }, { 1, 8, 0 }, + { -1, 8, 0 }, { 2, 6, 0 }, { -2, 6, 0 }, { 8, 1, 3 }, { -8, 1, 3 }, { 1, 9, 0 }, + { -1, 9, 0 }, { 5, 2, 2 }, { -5, 2, 2 }, { 3, 4, 1 }, { -3, 4, 1 }, { 2, 7, 0 }, + { -2, 7, 0 }, { 9, 1, 3 }, { -9, 1, 3 }, { 1, 10, 0 }, { -1, 10, 0 } + }, + //level_add + { 0, 10, 6, 4, 4, 3, 3, 3, 2, 2, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, + 2, //golomb_order + 2, //inc_limit + 10, //max_run + }, + { + { //level / run + { 1, 1, 0 }, { -1, 1, 0 }, { 2, 1, 0 }, { -2, 1, 0 }, { 3, 1, 0 }, { -3, 1, 0 }, + { 1, 2, 0 }, { -1, 2, 0 }, { EOB }, { 4, 1, 0 }, { -4, 1, 0 }, { 5, 1, 1 }, + { -5, 1, 1 }, { 2, 2, 0 }, { -2, 2, 0 }, { 1, 3, 0 }, { -1, 3, 0 }, { 6, 1, 1 }, + { -6, 1, 1 }, { 3, 2, 0 }, { -3, 2, 0 }, { 7, 1, 1 }, { -7, 1, 1 }, { 1, 4, 0 }, + { -1, 4, 0 }, { 8, 1, 2 }, { -8, 1, 2 }, { 2, 3, 0 }, { -2, 3, 0 }, { 4, 2, 0 }, + { -4, 2, 0 }, { 1, 5, 0 }, { -1, 5, 0 }, { 9, 1, 2 }, { -9, 1, 2 }, { 5, 2, 1 }, + { -5, 2, 1 }, { 2, 4, 0 }, { -2, 4, 0 }, { 10, 1, 2 }, {-10, 1, 2 }, { 3, 3, 0 }, + { -3, 3, 0 }, { 1, 6, 0 }, { -1, 6, 0 }, { 11, 1, 3 }, {-11, 1, 3 }, { 6, 2, 1 }, + { -6, 2, 1 }, { 1, 7, 0 }, { -1, 7, 0 }, { 2, 5, 0 }, { -2, 5, 0 }, { 3, 4, 0 }, + { -3, 4, 0 }, { 12, 1, 3 }, {-12, 1, 3 }, { 4, 3, 0 }, { -4, 3, 0 } + }, + //level_add + { 0, 13, 7, 5, 4, 3, 2, 2, -1, -1, -1 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, + 2, //golomb_order + 4, //inc_limit + 7, //max_run + }, + { + { //level / run + { 1, 1, 0 }, { -1, 1, 0 }, { 2, 1, 0 }, { -2, 1, 0 }, { 3, 1, 0 }, { -3, 1, 0 }, + { EOB }, { 4, 1, 0 }, { -4, 1, 0 }, { 5, 1, 0 }, { -5, 1, 0 }, { 6, 1, 0 }, + { -6, 1, 0 }, { 1, 2, 0 }, { -1, 2, 0 }, { 7, 1, 0 }, { -7, 1, 0 }, { 8, 1, 1 }, + { -8, 1, 1 }, { 2, 2, 0 }, { -2, 2, 0 }, { 9, 1, 1 }, { -9, 1, 1 }, { 10, 1, 1 }, + {-10, 1, 1 }, { 1, 3, 0 }, { -1, 3, 0 }, { 3, 2, 0 }, { -3, 2, 0 }, { 11, 1, 2 }, + {-11, 1, 2 }, { 4, 2, 0 }, { -4, 2, 0 }, { 12, 1, 2 }, {-12, 1, 2 }, { 13, 1, 2 }, + {-13, 1, 2 }, { 5, 2, 0 }, { -5, 2, 0 }, { 1, 4, 0 }, { -1, 4, 0 }, { 2, 3, 0 }, + { -2, 3, 0 }, { 14, 1, 2 }, {-14, 1, 2 }, { 6, 2, 0 }, { -6, 2, 0 }, { 15, 1, 2 }, + {-15, 1, 2 }, { 16, 1, 2 }, {-16, 1, 2 }, { 3, 3, 0 }, { -3, 3, 0 }, { 1, 5, 0 }, + { -1, 5, 0 }, { 7, 2, 0 }, { -7, 2, 0 }, { 17, 1, 2 }, {-17, 1, 2 } + }, + //level_add + { 0,18, 8, 4, 2, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, + 2, //golomb_order + 7, //inc_limit + 5, //max_run + }, + { + { //level / run + { EOB }, { 1, 1, 0 }, { -1, 1, 0 }, { 2, 1, 0 }, { -2, 1, 0 }, { 3, 1, 0 }, + { -3, 1, 0 }, { 4, 1, 0 }, { -4, 1, 0 }, { 5, 1, 0 }, { -5, 1, 0 }, { 6, 1, 0 }, + { -6, 1, 0 }, { 7, 1, 0 }, { -7, 1, 0 }, { 8, 1, 0 }, { -8, 1, 0 }, { 9, 1, 0 }, + { -9, 1, 0 }, { 10, 1, 0 }, {-10, 1, 0 }, { 1, 2, 0 }, { -1, 2, 0 }, { 11, 1, 1 }, + {-11, 1, 1 }, { 12, 1, 1 }, {-12, 1, 1 }, { 13, 1, 1 }, {-13, 1, 1 }, { 2, 2, 0 }, + { -2, 2, 0 }, { 14, 1, 1 }, {-14, 1, 1 }, { 15, 1, 1 }, {-15, 1, 1 }, { 3, 2, 0 }, + { -3, 2, 0 }, { 16, 1, 1 }, {-16, 1, 1 }, { 1, 3, 0 }, { -1, 3, 0 }, { 17, 1, 1 }, + {-17, 1, 1 }, { 4, 2, 0 }, { -4, 2, 0 }, { 18, 1, 1 }, {-18, 1, 1 }, { 5, 2, 0 }, + { -5, 2, 0 }, { 19, 1, 1 }, {-19, 1, 1 }, { 20, 1, 1 }, {-20, 1, 1 }, { 6, 2, 0 }, + { -6, 2, 0 }, { 21, 1, 1 }, {-21, 1, 1 }, { 2, 3, 0 }, { -2, 3, 0 } + }, + //level_add + { 0, 22, 7, 3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, + 2, //golomb_order + 10, //inc_limit + 3, //max_run + }, + { + { //level / run + { EOB }, { 1, 1, 0 }, { -1, 1, 0 }, { 2, 1, 0 }, { -2, 1, 0 }, { 3, 1, 0 }, + { -3, 1, 0 }, { 4, 1, 0 }, { -4, 1, 0 }, { 5, 1, 0 }, { -5, 1, 0 }, { 6, 1, 0 }, + { -6, 1, 0 }, { 7, 1, 0 }, { -7, 1, 0 }, { 8, 1, 0 }, { -8, 1, 0 }, { 9, 1, 0 }, + { -9, 1, 0 }, { 10, 1, 0 }, {-10, 1, 0 }, { 11, 1, 0 }, {-11, 1, 0 }, { 12, 1, 0 }, + {-12, 1, 0 }, { 13, 1, 0 }, {-13, 1, 0 }, { 14, 1, 0 }, {-14, 1, 0 }, { 15, 1, 0 }, + {-15, 1, 0 }, { 16, 1, 0 }, {-16, 1, 0 }, { 1, 2, 0 }, { -1, 2, 0 }, { 17, 1, 0 }, + {-17, 1, 0 }, { 18, 1, 0 }, {-18, 1, 0 }, { 19, 1, 0 }, {-19, 1, 0 }, { 20, 1, 0 }, + {-20, 1, 0 }, { 21, 1, 0 }, {-21, 1, 0 }, { 2, 2, 0 }, { -2, 2, 0 }, { 22, 1, 0 }, + {-22, 1, 0 }, { 23, 1, 0 }, {-23, 1, 0 }, { 24, 1, 0 }, {-24, 1, 0 }, { 25, 1, 0 }, + {-25, 1, 0 }, { 3, 2, 0 }, { -3, 2, 0 }, { 26, 1, 0 }, {-26, 1, 0 } + }, + //level_add + { 0, 27, 4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, + 2, //golomb_order + INT_MAX, //inc_limit + 2, //max_run + } +}; + +static const struct dec_2dvlc inter_dec[7] = { + { + { //level / run + { 1, 1, 1 }, { -1, 1, 1 }, { 1, 2, 1 }, { -1, 2, 1 }, { 1, 3, 1 }, { -1, 3, 1 }, + { 1, 4, 1 }, { -1, 4, 1 }, { 1, 5, 1 }, { -1, 5, 1 }, { 1, 6, 1 }, { -1, 6, 1 }, + { 1, 7, 1 }, { -1, 7, 1 }, { 1, 8, 1 }, { -1, 8, 1 }, { 1, 9, 1 }, { -1, 9, 1 }, + { 1, 10, 1 }, { -1, 10, 1 }, { 1, 11, 1 }, { -1, 11, 1 }, { 1, 12, 1 }, { -1, 12, 1 }, + { 1, 13, 1 }, { -1, 13, 1 }, { 2, 1, 2 }, { -2, 1, 2 }, { 1, 14, 1 }, { -1, 14, 1 }, + { 1, 15, 1 }, { -1, 15, 1 }, { 1, 16, 1 }, { -1, 16, 1 }, { 1, 17, 1 }, { -1, 17, 1 }, + { 1, 18, 1 }, { -1, 18, 1 }, { 1, 19, 1 }, { -1, 19, 1 }, { 3, 1, 3 }, { -3, 1, 3 }, + { 1, 20, 1 }, { -1, 20, 1 }, { 1, 21, 1 }, { -1, 21, 1 }, { 2, 2, 2 }, { -2, 2, 2 }, + { 1, 22, 1 }, { -1, 22, 1 }, { 1, 23, 1 }, { -1, 23, 1 }, { 1, 24, 1 }, { -1, 24, 1 }, + { 1, 25, 1 }, { -1, 25, 1 }, { 1, 26, 1 }, { -1, 26, 1 }, { EOB } + }, + //level_add + { 0, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 }, + 3, //golomb_order + 0, //inc_limit + 26 //max_run + }, + { + { //level / run + { 1, 1, 0 }, { -1, 1, 0 }, { EOB }, { 1, 2, 0 }, { -1, 2, 0 }, { 1, 3, 0 }, + { -1, 3, 0 }, { 1, 4, 0 }, { -1, 4, 0 }, { 1, 5, 0 }, { -1, 5, 0 }, { 1, 6, 0 }, + { -1, 6, 0 }, { 2, 1, 1 }, { -2, 1, 1 }, { 1, 7, 0 }, { -1, 7, 0 }, { 1, 8, 0 }, + { -1, 8, 0 }, { 1, 9, 0 }, { -1, 9, 0 }, { 1, 10, 0 }, { -1, 10, 0 }, { 2, 2, 1 }, + { -2, 2, 1 }, { 1, 11, 0 }, { -1, 11, 0 }, { 1, 12, 0 }, { -1, 12, 0 }, { 3, 1, 2 }, + { -3, 1, 2 }, { 1, 13, 0 }, { -1, 13, 0 }, { 1, 14, 0 }, { -1, 14, 0 }, { 2, 3, 1 }, + { -2, 3, 1 }, { 1, 15, 0 }, { -1, 15, 0 }, { 2, 4, 1 }, { -2, 4, 1 }, { 1, 16, 0 }, + { -1, 16, 0 }, { 2, 5, 1 }, { -2, 5, 1 }, { 1, 17, 0 }, { -1, 17, 0 }, { 4, 1, 3 }, + { -4, 1, 3 }, { 2, 6, 1 }, { -2, 6, 1 }, { 1, 18, 0 }, { -1, 18, 0 }, { 1, 19, 0 }, + { -1, 19, 0 }, { 2, 7, 1 }, { -2, 7, 1 }, { 3, 2, 2 }, { -3, 2, 2 } + }, + //level_add + { 0, 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, -1, -1, -1, -1, -1, -1, -1 }, + 2, //golomb_order + 1, //inc_limit + 19 //max_run + }, + { + { //level / run + { 1, 1, 0 }, { -1, 1, 0 }, { EOB }, { 1, 2, 0 }, { -1, 2, 0 }, { 2, 1, 0 }, + { -2, 1, 0 }, { 1, 3, 0 }, { -1, 3, 0 }, { 1, 4, 0 }, { -1, 4, 0 }, { 3, 1, 1 }, + { -3, 1, 1 }, { 2, 2, 0 }, { -2, 2, 0 }, { 1, 5, 0 }, { -1, 5, 0 }, { 1, 6, 0 }, + { -1, 6, 0 }, { 1, 7, 0 }, { -1, 7, 0 }, { 2, 3, 0 }, { -2, 3, 0 }, { 4, 1, 2 }, + { -4, 1, 2 }, { 1, 8, 0 }, { -1, 8, 0 }, { 3, 2, 1 }, { -3, 2, 1 }, { 2, 4, 0 }, + { -2, 4, 0 }, { 1, 9, 0 }, { -1, 9, 0 }, { 1, 10, 0 }, { -1, 10, 0 }, { 5, 1, 2 }, + { -5, 1, 2 }, { 2, 5, 0 }, { -2, 5, 0 }, { 1, 11, 0 }, { -1, 11, 0 }, { 2, 6, 0 }, + { -2, 6, 0 }, { 1, 12, 0 }, { -1, 12, 0 }, { 3, 3, 1 }, { -3, 3, 1 }, { 6, 1, 2 }, + { -6, 1, 2 }, { 4, 2, 2 }, { -4, 2, 2 }, { 1, 13, 0 }, { -1, 13, 0 }, { 2, 7, 0 }, + { -2, 7, 0 }, { 3, 4, 1 }, { -3, 4, 1 }, { 1, 14, 0 }, { -1, 14, 0 } + }, + //level_add + { 0, 7, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, + 2, //golomb_order + 2, //inc_limit + 14 //max_run + }, + { + { //level / run + { 1, 1, 0 }, { -1, 1, 0 }, { EOB }, { 2, 1, 0 }, { -2, 1, 0 }, { 1, 2, 0 }, + { -1, 2, 0 }, { 3, 1, 0 }, { -3, 1, 0 }, { 1, 3, 0 }, { -1, 3, 0 }, { 2, 2, 0 }, + { -2, 2, 0 }, { 4, 1, 1 }, { -4, 1, 1 }, { 1, 4, 0 }, { -1, 4, 0 }, { 5, 1, 1 }, + { -5, 1, 1 }, { 1, 5, 0 }, { -1, 5, 0 }, { 3, 2, 0 }, { -3, 2, 0 }, { 2, 3, 0 }, + { -2, 3, 0 }, { 1, 6, 0 }, { -1, 6, 0 }, { 6, 1, 1 }, { -6, 1, 1 }, { 2, 4, 0 }, + { -2, 4, 0 }, { 1, 7, 0 }, { -1, 7, 0 }, { 4, 2, 1 }, { -4, 2, 1 }, { 7, 1, 2 }, + { -7, 1, 2 }, { 3, 3, 0 }, { -3, 3, 0 }, { 1, 8, 0 }, { -1, 8, 0 }, { 2, 5, 0 }, + { -2, 5, 0 }, { 8, 1, 2 }, { -8, 1, 2 }, { 1, 9, 0 }, { -1, 9, 0 }, { 3, 4, 0 }, + { -3, 4, 0 }, { 2, 6, 0 }, { -2, 6, 0 }, { 5, 2, 1 }, { -5, 2, 1 }, { 1, 10, 0 }, + { -1, 10, 0 }, { 9, 1, 2 }, { -9, 1, 2 }, { 4, 3, 1 }, { -4, 3, 1 } + }, + //level_add + { 0,10, 6, 5, 4, 3, 3, 2, 2, 2, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, + 2, //golomb_order + 3, //inc_limit + 10 //max_run + }, + { + { //level / run + { 1, 1, 0 }, { -1, 1, 0 }, { EOB }, { 2, 1, 0 }, { -2, 1, 0 }, { 3, 1, 0 }, + { -3, 1, 0 }, { 1, 2, 0 }, { -1, 2, 0 }, { 4, 1, 0 }, { -4, 1, 0 }, { 5, 1, 0 }, + { -5, 1, 0 }, { 2, 2, 0 }, { -2, 2, 0 }, { 1, 3, 0 }, { -1, 3, 0 }, { 6, 1, 0 }, + { -6, 1, 0 }, { 3, 2, 0 }, { -3, 2, 0 }, { 7, 1, 1 }, { -7, 1, 1 }, { 1, 4, 0 }, + { -1, 4, 0 }, { 8, 1, 1 }, { -8, 1, 1 }, { 2, 3, 0 }, { -2, 3, 0 }, { 4, 2, 0 }, + { -4, 2, 0 }, { 1, 5, 0 }, { -1, 5, 0 }, { 9, 1, 1 }, { -9, 1, 1 }, { 5, 2, 0 }, + { -5, 2, 0 }, { 2, 4, 0 }, { -2, 4, 0 }, { 1, 6, 0 }, { -1, 6, 0 }, { 10, 1, 2 }, + {-10, 1, 2 }, { 3, 3, 0 }, { -3, 3, 0 }, { 11, 1, 2 }, {-11, 1, 2 }, { 1, 7, 0 }, + { -1, 7, 0 }, { 6, 2, 0 }, { -6, 2, 0 }, { 3, 4, 0 }, { -3, 4, 0 }, { 2, 5, 0 }, + { -2, 5, 0 }, { 12, 1, 2 }, {-12, 1, 2 }, { 4, 3, 0 }, { -4, 3, 0 } + }, + //level_add + { 0, 13, 7, 5, 4, 3, 2, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, + 2, //golomb_order + 6, //inc_limit + 7 //max_run + }, + { + { //level / run + { EOB }, { 1, 1, 0 }, { -1, 1, 0 }, { 2, 1, 0 }, { -2, 1, 0 }, { 3, 1, 0 }, + { -3, 1, 0 }, { 4, 1, 0 }, { -4, 1, 0 }, { 5, 1, 0 }, { -5, 1, 0 }, { 1, 2, 0 }, + { -1, 2, 0 }, { 6, 1, 0 }, { -6, 1, 0 }, { 7, 1, 0 }, { -7, 1, 0 }, { 8, 1, 0 }, + { -8, 1, 0 }, { 2, 2, 0 }, { -2, 2, 0 }, { 9, 1, 0 }, { -9, 1, 0 }, { 1, 3, 0 }, + { -1, 3, 0 }, { 10, 1, 1 }, { -10, 1, 1 }, { 3, 2, 0 }, { -3, 2, 0 }, { 11, 1, 1 }, + { -11, 1, 1 }, { 4, 2, 0 }, { -4, 2, 0 }, { 12, 1, 1 }, { -12, 1, 1 }, { 1, 4, 0 }, + { -1, 4, 0 }, { 2, 3, 0 }, { -2, 3, 0 }, { 13, 1, 1 }, { -13, 1, 1 }, { 5, 2, 0 }, + { -5, 2, 0 }, { 14, 1, 1 }, { -14, 1, 1 }, { 6, 2, 0 }, { -6, 2, 0 }, { 1, 5, 0 }, + { -1, 5, 0 }, { 15, 1, 1 }, { -15, 1, 1 }, { 3, 3, 0 }, { -3, 3, 0 }, { 16, 1, 1 }, + { -16, 1, 1 }, { 2, 4, 0 }, { -2, 4, 0 }, { 7, 2, 0 }, { -7, 2, 0 } + }, + //level_add + { 0, 17, 8, 4, 3, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, + 2, //golomb_order + 9, //inc_limit + 5 //max_run + }, + { + { //level / run + { EOB }, { 1, 1, 0 }, { -1, 1, 0 }, { 2, 1, 0 }, { -2, 1, 0 }, { 3, 1, 0 }, + { -3, 1, 0 }, { 4, 1, 0 }, { -4, 1, 0 }, { 5, 1, 0 }, { -5, 1, 0 }, { 6, 1, 0 }, + { -6, 1, 0 }, { 7, 1, 0 }, { -7, 1, 0 }, { 1, 2, 0 }, { -1, 2, 0 }, { 8, 1, 0 }, + { -8, 1, 0 }, { 9, 1, 0 }, { -9, 1, 0 }, { 10, 1, 0 }, { -10, 1, 0 }, { 11, 1, 0 }, + { -11, 1, 0 }, { 12, 1, 0 }, { -12, 1, 0 }, { 2, 2, 0 }, { -2, 2, 0 }, { 13, 1, 0 }, + { -13, 1, 0 }, { 1, 3, 0 }, { -1, 3, 0 }, { 14, 1, 0 }, { -14, 1, 0 }, { 15, 1, 0 }, + { -15, 1, 0 }, { 3, 2, 0 }, { -3, 2, 0 }, { 16, 1, 0 }, { -16, 1, 0 }, { 17, 1, 0 }, + { -17, 1, 0 }, { 18, 1, 0 }, { -18, 1, 0 }, { 4, 2, 0 }, { -4, 2, 0 }, { 19, 1, 0 }, + { -19, 1, 0 }, { 20, 1, 0 }, { -20, 1, 0 }, { 2, 3, 0 }, { -2, 3, 0 }, { 1, 4, 0 }, + { -1, 4, 0 }, { 5, 2, 0 }, { -5, 2, 0 }, { 21, 1, 0 }, { -21, 1, 0 } + }, + //level_add + { 0, 22, 6, 3, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, + 2, //golomb_order + INT_MAX, //inc_limit + 4 //max_run + } +}; + +static const struct dec_2dvlc chroma_dec[5] = { + { + { //level / run + { 1, 1, 1 }, { -1, 1, 1 }, { 1, 2, 1 }, { -1, 2, 1 }, { 1, 3, 1 }, { -1, 3, 1 }, + { 1, 4, 1 }, { -1, 4, 1 }, { 1, 5, 1 }, { -1, 5, 1 }, { 1, 6, 1 }, { -1, 6, 1 }, + { 1, 7, 1 }, { -1, 7, 1 }, { 2, 1, 2 }, { -2, 1, 2 }, { 1, 8, 1 }, { -1, 8, 1 }, + { 1, 9, 1 }, { -1, 9, 1 }, { 1, 10, 1 }, { -1, 10, 1 }, { 1, 11, 1 }, { -1, 11, 1 }, + { 1, 12, 1 }, { -1, 12, 1 }, { 1, 13, 1 }, { -1, 13, 1 }, { 1, 14, 1 }, { -1, 14, 1 }, + { 1, 15, 1 }, { -1, 15, 1 }, { 3, 1, 3 }, { -3, 1, 3 }, { 1, 16, 1 }, { -1, 16, 1 }, + { 1, 17, 1 }, { -1, 17, 1 }, { 1, 18, 1 }, { -1, 18, 1 }, { 1, 19, 1 }, { -1, 19, 1 }, + { 1, 20, 1 }, { -1, 20, 1 }, { 1, 21, 1 }, { -1, 21, 1 }, { 1, 22, 1 }, { -1, 22, 1 }, + { 2, 2, 2 }, { -2, 2, 2 }, { 1, 23, 1 }, { -1, 23, 1 }, { 1, 24, 1 }, { -1, 24, 1 }, + { 1, 25, 1 }, { -1, 25, 1 }, { 4, 1, 3 }, { -4, 1, 3 }, { EOB } + }, + //level_add + { 0, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, -1 }, + 2, //golomb_order + 0, //inc_limit + 25 //max_run + }, + { + { //level / run + { EOB }, { 1, 1, 0 }, { -1, 1, 0 }, { 1, 2, 0 }, { -1, 2, 0 }, { 2, 1, 1 }, + { -2, 1, 1 }, { 1, 3, 0 }, { -1, 3, 0 }, { 1, 4, 0 }, { -1, 4, 0 }, { 1, 5, 0 }, + { -1, 5, 0 }, { 1, 6, 0 }, { -1, 6, 0 }, { 3, 1, 2 }, { -3, 1, 2 }, { 1, 7, 0 }, + { -1, 7, 0 }, { 1, 8, 0 }, { -1, 8, 0 }, { 2, 2, 1 }, { -2, 2, 1 }, { 1, 9, 0 }, + { -1, 9, 0 }, { 1, 10, 0 }, { -1, 10, 0 }, { 1, 11, 0 }, { -1, 11, 0 }, { 4, 1, 2 }, + { -4, 1, 2 }, { 1, 12, 0 }, { -1, 12, 0 }, { 1, 13, 0 }, { -1, 13, 0 }, { 1, 14, 0 }, + { -1, 14, 0 }, { 2, 3, 1 }, { -2, 3, 1 }, { 1, 15, 0 }, { -1, 15, 0 }, { 2, 4, 1 }, + { -2, 4, 1 }, { 5, 1, 3 }, { -5, 1, 3 }, { 3, 2, 2 }, { -3, 2, 2 }, { 1, 16, 0 }, + { -1, 16, 0 }, { 1, 17, 0 }, { -1, 17, 0 }, { 1, 18, 0 }, { -1, 18, 0 }, { 2, 5, 1 }, + { -2, 5, 1 }, { 1, 19, 0 }, { -1, 19, 0 }, { 1, 20, 0 }, { -1, 20, 0 } + }, + //level_add + { 0, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, -1, -1, -1, -1, -1, -1 }, + 0, //golomb_order + 1, //inc_limit + 20 //max_run + }, + { + { //level / run + { 1, 1, 0 }, { -1, 1, 0 }, { EOB }, { 2, 1, 0 }, { -2, 1, 0 }, { 1, 2, 0 }, + { -1, 2, 0 }, { 3, 1, 1 }, { -3, 1, 1 }, { 1, 3, 0 }, { -1, 3, 0 }, { 4, 1, 1 }, + { -4, 1, 1 }, { 2, 2, 0 }, { -2, 2, 0 }, { 1, 4, 0 }, { -1, 4, 0 }, { 5, 1, 2 }, + { -5, 1, 2 }, { 1, 5, 0 }, { -1, 5, 0 }, { 3, 2, 1 }, { -3, 2, 1 }, { 2, 3, 0 }, + { -2, 3, 0 }, { 1, 6, 0 }, { -1, 6, 0 }, { 6, 1, 2 }, { -6, 1, 2 }, { 1, 7, 0 }, + { -1, 7, 0 }, { 2, 4, 0 }, { -2, 4, 0 }, { 7, 1, 2 }, { -7, 1, 2 }, { 1, 8, 0 }, + { -1, 8, 0 }, { 4, 2, 1 }, { -4, 2, 1 }, { 1, 9, 0 }, { -1, 9, 0 }, { 3, 3, 1 }, + { -3, 3, 1 }, { 2, 5, 0 }, { -2, 5, 0 }, { 2, 6, 0 }, { -2, 6, 0 }, { 8, 1, 2 }, + { -8, 1, 2 }, { 1, 10, 0 }, { -1, 10, 0 }, { 1, 11, 0 }, { -1, 11, 0 }, { 9, 1, 2 }, + { -9, 1, 2 }, { 5, 2, 2 }, { -5, 2, 2 }, { 3, 4, 1 }, { -3, 4, 1 }, + }, + //level_add + { 0,10, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, + 1, //golomb_order + 2, //inc_limit + 11 //max_run + }, + { + { //level / run + { EOB }, { 1, 1, 0 }, { -1, 1, 0 }, { 2, 1, 0 }, { -2, 1, 0 }, { 3, 1, 0 }, + { -3, 1, 0 }, { 4, 1, 0 }, { -4, 1, 0 }, { 1, 2, 0 }, { -1, 2, 0 }, { 5, 1, 1 }, + { -5, 1, 1 }, { 2, 2, 0 }, { -2, 2, 0 }, { 6, 1, 1 }, { -6, 1, 1 }, { 1, 3, 0 }, + { -1, 3, 0 }, { 7, 1, 1 }, { -7, 1, 1 }, { 3, 2, 0 }, { -3, 2, 0 }, { 8, 1, 1 }, + { -8, 1, 1 }, { 1, 4, 0 }, { -1, 4, 0 }, { 2, 3, 0 }, { -2, 3, 0 }, { 9, 1, 1 }, + { -9, 1, 1 }, { 4, 2, 0 }, { -4, 2, 0 }, { 1, 5, 0 }, { -1, 5, 0 }, { 10, 1, 1 }, + {-10, 1, 1 }, { 3, 3, 0 }, { -3, 3, 0 }, { 5, 2, 1 }, { -5, 2, 1 }, { 2, 4, 0 }, + { -2, 4, 0 }, { 11, 1, 1 }, {-11, 1, 1 }, { 1, 6, 0 }, { -1, 6, 0 }, { 12, 1, 1 }, + {-12, 1, 1 }, { 1, 7, 0 }, { -1, 7, 0 }, { 6, 2, 1 }, { -6, 2, 1 }, { 13, 1, 1 }, + {-13, 1, 1 }, { 2, 5, 0 }, { -2, 5, 0 }, { 1, 8, 0 }, { -1, 8, 0 }, + }, + //level_add + { 0, 14, 7, 4, 3, 3, 2, 2, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, + 1, //golomb_order + 4, //inc_limit + 8 //max_run + }, + { + { //level / run + { EOB }, { 1, 1, 0 }, { -1, 1, 0 }, { 2, 1, 0 }, { -2, 1, 0 }, { 3, 1, 0 }, + { -3, 1, 0 }, { 4, 1, 0 }, { -4, 1, 0 }, { 5, 1, 0 }, { -5, 1, 0 }, { 6, 1, 0 }, + { -6, 1, 0 }, { 7, 1, 0 }, { -7, 1, 0 }, { 8, 1, 0 }, { -8, 1, 0 }, { 1, 2, 0 }, + { -1, 2, 0 }, { 9, 1, 0 }, { -9, 1, 0 }, { 10, 1, 0 }, { -10, 1, 0 }, { 11, 1, 0 }, + { -11, 1, 0 }, { 2, 2, 0 }, { -2, 2, 0 }, { 12, 1, 0 }, { -12, 1, 0 }, { 13, 1, 0 }, + { -13, 1, 0 }, { 3, 2, 0 }, { -3, 2, 0 }, { 14, 1, 0 }, { -14, 1, 0 }, { 1, 3, 0 }, + { -1, 3, 0 }, { 15, 1, 0 }, { -15, 1, 0 }, { 4, 2, 0 }, { -4, 2, 0 }, { 16, 1, 0 }, + { -16, 1, 0 }, { 17, 1, 0 }, { -17, 1, 0 }, { 5, 2, 0 }, { -5, 2, 0 }, { 1, 4, 0 }, + { -1, 4, 0 }, { 2, 3, 0 }, { -2, 3, 0 }, { 18, 1, 0 }, { -18, 1, 0 }, { 6, 2, 0 }, + { -6, 2, 0 }, { 19, 1, 0 }, { -19, 1, 0 }, { 1, 5, 0 }, { -1, 5, 0 }, + }, + //level_add + { 0, 20, 7, 3, 2, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, + 0, //golomb_order + INT_MAX, //inc_limit + 5, //max_run + } +}; + +#undef EOB + /***************************************************************************** * * motion vector prediction * ****************************************************************************/ -static inline void store_mvs(AVSContext *h) { - h->col_mv[h->mbidx*4 + 0] = h->mv[MV_FWD_X0]; - h->col_mv[h->mbidx*4 + 1] = h->mv[MV_FWD_X1]; - h->col_mv[h->mbidx*4 + 2] = h->mv[MV_FWD_X2]; - h->col_mv[h->mbidx*4 + 3] = h->mv[MV_FWD_X3]; +static inline void store_mvs(AVSContext *h) +{ + h->col_mv[h->mbidx * 4 + 0] = h->mv[MV_FWD_X0]; + h->col_mv[h->mbidx * 4 + 1] = h->mv[MV_FWD_X1]; + h->col_mv[h->mbidx * 4 + 2] = h->mv[MV_FWD_X2]; + h->col_mv[h->mbidx * 4 + 3] = h->mv[MV_FWD_X3]; } static inline void mv_pred_direct(AVSContext *h, cavs_vector *pmv_fw, - cavs_vector *col_mv) { + cavs_vector *col_mv) +{ cavs_vector *pmv_bw = pmv_fw + MV_BWD_OFFS; int den = h->direct_den[col_mv->ref]; int m = col_mv->x >> 31; @@ -70,14 +480,16 @@ static inline void mv_pred_direct(AVSContext *h, cavs_vector *pmv_fw, pmv_fw->ref = 1; pmv_bw->ref = 0; /* scale the co-located motion vector according to its temporal span */ - pmv_fw->x = (((den+(den*col_mv->x*pmv_fw->dist^m)-m-1)>>14)^m)-m; - pmv_bw->x = m-(((den+(den*col_mv->x*pmv_bw->dist^m)-m-1)>>14)^m); + pmv_fw->x = (((den + (den * col_mv->x * pmv_fw->dist ^ m) - m - 1) >> 14) ^ m) - m; + pmv_bw->x = m - (((den + (den * col_mv->x * pmv_bw->dist ^ m) - m - 1) >> 14) ^ m); m = col_mv->y >> 31; - pmv_fw->y = (((den+(den*col_mv->y*pmv_fw->dist^m)-m-1)>>14)^m)-m; - pmv_bw->y = m-(((den+(den*col_mv->y*pmv_bw->dist^m)-m-1)>>14)^m); + pmv_fw->y = (((den + (den * col_mv->y * pmv_fw->dist ^ m) - m - 1) >> 14) ^ m) - m; + pmv_bw->y = m - (((den + (den * col_mv->y * pmv_bw->dist ^ m) - m - 1) >> 14) ^ m); } -static inline void mv_pred_sym(AVSContext *h, cavs_vector *src, enum cavs_block size) { +static inline void mv_pred_sym(AVSContext *h, cavs_vector *src, + enum cavs_block size) +{ cavs_vector *dst = src + MV_BWD_OFFS; /* backward mv is the scaled and negated forward mv */ @@ -95,14 +507,36 @@ static inline void mv_pred_sym(AVSContext *h, cavs_vector *src, enum cavs_block ****************************************************************************/ /** kth-order exponential golomb code */ -static inline int get_ue_code(GetBitContext *gb, int order) { - if(order) { +static inline int get_ue_code(GetBitContext *gb, int order) +{ + if (order) { int ret = get_ue_golomb(gb) << order; - return ret + get_bits(gb,order); + return ret + get_bits(gb, order); } return get_ue_golomb(gb); } +static inline int dequant(AVSContext *h, int16_t *level_buf, uint8_t *run_buf, + int16_t *dst, int mul, int shift, int coeff_num) +{ + int round = 1 << (shift - 1); + int pos = -1; + const uint8_t *scantab = h->scantable.permutated; + + /* inverse scan and dequantization */ + while (--coeff_num >= 0) { + pos += run_buf[coeff_num]; + if (pos > 63) { + av_log(h->avctx, AV_LOG_ERROR, + "position out of block bounds at pic %d MB(%d,%d)\n", + h->cur.poc, h->mbx, h->mby); + return AVERROR_INVALIDDATA; + } + dst[scantab[pos]] = (level_buf[coeff_num] * mul + round) >> shift; + } + return 0; +} + /** * decode coefficients from one 8x8 block, dequantize, inverse transform * and add them to sample block @@ -114,67 +548,72 @@ static inline int get_ue_code(GetBitContext *gb, int order) { */ static int decode_residual_block(AVSContext *h, GetBitContext *gb, const struct dec_2dvlc *r, int esc_golomb_order, - int qp, uint8_t *dst, int stride) { - int i, level_code, esc_code, level, run, mask; - DCTELEM level_buf[65]; + int qp, uint8_t *dst, int stride) +{ + int i, level_code, esc_code, level, run, mask, ret; + int16_t level_buf[65]; uint8_t run_buf[65]; - DCTELEM *block = h->block; - - for(i=0;i<65;i++) { - level_code = get_ue_code(gb,r->golomb_order); - if(level_code >= ESCAPE_CODE) { - run = ((level_code - ESCAPE_CODE) >> 1) + 1; - esc_code = get_ue_code(gb,esc_golomb_order); - level = esc_code + (run > r->max_run ? 1 : r->level_add[run]); - while(level > r->inc_limit) + int16_t *block = h->block; + + for (i = 0;i < 65; i++) { + level_code = get_ue_code(gb, r->golomb_order); + if (level_code >= ESCAPE_CODE) { + run = ((level_code - ESCAPE_CODE) >> 1) + 1; + esc_code = get_ue_code(gb, esc_golomb_order); + level = esc_code + (run > r->max_run ? 1 : r->level_add[run]); + while (level > r->inc_limit) r++; - mask = -(level_code & 1); - level = (level^mask) - mask; - } else { + mask = -(level_code & 1); + level = (level ^ mask) - mask; + } else if (level_code >= 0) { level = r->rltab[level_code][0]; - if(!level) //end of block signal + if (!level) //end of block signal break; - run = r->rltab[level_code][1]; - r += r->rltab[level_code][2]; + run = r->rltab[level_code][1]; + r += r->rltab[level_code][2]; + } else { + break; } level_buf[i] = level; - run_buf[i] = run; + run_buf[i] = run; } - if(dequant(h,level_buf, run_buf, block, ff_cavs_dequant_mul[qp], - ff_cavs_dequant_shift[qp], i)) - return -1; - h->s.dsp.cavs_idct8_add(dst,block,stride); - h->s.dsp.clear_block(block); + if ((ret = dequant(h, level_buf, run_buf, block, dequant_mul[qp], + dequant_shift[qp], i)) < 0) + return ret; + h->cdsp.cavs_idct8_add(dst, block, stride); + h->bdsp.clear_block(block); return 0; } -static inline void decode_residual_chroma(AVSContext *h) { - if(h->cbp & (1<<4)) - decode_residual_block(h,&h->s.gb,ff_cavs_chroma_dec,0, - ff_cavs_chroma_qp[h->qp],h->cu,h->c_stride); - if(h->cbp & (1<<5)) - decode_residual_block(h,&h->s.gb,ff_cavs_chroma_dec,0, - ff_cavs_chroma_qp[h->qp],h->cv,h->c_stride); +static inline void decode_residual_chroma(AVSContext *h) +{ + if (h->cbp & (1 << 4)) + decode_residual_block(h, &h->gb, chroma_dec, 0, + cavs_chroma_qp[h->qp], h->cu, h->c_stride); + if (h->cbp & (1 << 5)) + decode_residual_block(h, &h->gb, chroma_dec, 0, + cavs_chroma_qp[h->qp], h->cv, h->c_stride); } -static inline int decode_residual_inter(AVSContext *h) { +static inline int decode_residual_inter(AVSContext *h) +{ int block; /* get coded block pattern */ - int cbp= get_ue_golomb(&h->s.gb); - if(cbp > 63){ - av_log(h->s.avctx, AV_LOG_ERROR, "illegal inter cbp\n"); - return -1; + int cbp = get_ue_golomb(&h->gb); + if (cbp > 63 || cbp < 0) { + av_log(h->avctx, AV_LOG_ERROR, "illegal inter cbp %d\n", cbp); + return AVERROR_INVALIDDATA; } h->cbp = cbp_tab[cbp][1]; /* get quantizer */ - if(h->cbp && !h->qp_fixed) - h->qp = (h->qp + get_se_golomb(&h->s.gb)) & 63; - for(block=0;block<4;block++) - if(h->cbp & (1<s.gb,ff_cavs_inter_dec,0,h->qp, + if (h->cbp && !h->qp_fixed) + h->qp = (h->qp + get_se_golomb(&h->gb)) & 63; + for (block = 0; block < 4; block++) + if (h->cbp & (1 << block)) + decode_residual_block(h, &h->gb, inter_dec, 0, h->qp, h->cy + h->luma_scan[block], h->l_stride); decode_residual_chroma(h); @@ -187,9 +626,21 @@ static inline int decode_residual_inter(AVSContext *h) { * ****************************************************************************/ -static int decode_mb_i(AVSContext *h, int cbp_code) { - GetBitContext *gb = &h->s.gb; - int block, pred_mode_uv; +static inline void set_mv_intra(AVSContext *h) +{ + h->mv[MV_FWD_X0] = ff_cavs_intra_mv; + set_mvs(&h->mv[MV_FWD_X0], BLK_16X16); + h->mv[MV_BWD_X0] = ff_cavs_intra_mv; + set_mvs(&h->mv[MV_BWD_X0], BLK_16X16); + if (h->cur.f->pict_type != AV_PICTURE_TYPE_B) + h->col_type_base[h->mbidx] = I_8X8; +} + +static int decode_mb_i(AVSContext *h, int cbp_code) +{ + GetBitContext *gb = &h->gb; + unsigned pred_mode_uv; + int block; uint8_t top[18]; uint8_t *left = NULL; uint8_t *d; @@ -197,74 +648,86 @@ static int decode_mb_i(AVSContext *h, int cbp_code) { ff_cavs_init_mb(h); /* get intra prediction modes from stream */ - for(block=0;block<4;block++) { - int nA,nB,predpred; - int pos = ff_cavs_scan3x3[block]; - - nA = h->pred_mode_Y[pos-1]; - nB = h->pred_mode_Y[pos-3]; - predpred = FFMIN(nA,nB); - if(predpred == NOT_AVAIL) // if either is not available + for (block = 0; block < 4; block++) { + int nA, nB, predpred; + int pos = scan3x3[block]; + + nA = h->pred_mode_Y[pos - 1]; + nB = h->pred_mode_Y[pos - 3]; + predpred = FFMIN(nA, nB); + if (predpred == NOT_AVAIL) // if either is not available predpred = INTRA_L_LP; - if(!get_bits1(gb)){ - int rem_mode= get_bits(gb, 2); - predpred = rem_mode + (rem_mode >= predpred); + if (!get_bits1(gb)) { + int rem_mode = get_bits(gb, 2); + predpred = rem_mode + (rem_mode >= predpred); } h->pred_mode_Y[pos] = predpred; } pred_mode_uv = get_ue_golomb(gb); - if(pred_mode_uv > 6) { - av_log(h->s.avctx, AV_LOG_ERROR, "illegal intra chroma pred mode\n"); - return -1; + if (pred_mode_uv > 6) { + av_log(h->avctx, AV_LOG_ERROR, "illegal intra chroma pred mode\n"); + return AVERROR_INVALIDDATA; } ff_cavs_modify_mb_i(h, &pred_mode_uv); /* get coded block pattern */ - if(h->pic_type == FF_I_TYPE) + if (h->cur.f->pict_type == AV_PICTURE_TYPE_I) cbp_code = get_ue_golomb(gb); - if(cbp_code > 63){ - av_log(h->s.avctx, AV_LOG_ERROR, "illegal intra cbp\n"); - return -1; + if (cbp_code > 63 || cbp_code < 0) { + av_log(h->avctx, AV_LOG_ERROR, "illegal intra cbp\n"); + return AVERROR_INVALIDDATA; } h->cbp = cbp_tab[cbp_code][0]; - if(h->cbp && !h->qp_fixed) + if (h->cbp && !h->qp_fixed) h->qp = (h->qp + get_se_golomb(gb)) & 63; //qp_delta /* luma intra prediction interleaved with residual decode/transform/add */ - for(block=0;block<4;block++) { + for (block = 0; block < 4; block++) { d = h->cy + h->luma_scan[block]; ff_cavs_load_intra_pred_luma(h, top, &left, block); - h->intra_pred_l[h->pred_mode_Y[ff_cavs_scan3x3[block]]] + h->intra_pred_l[h->pred_mode_Y[scan3x3[block]]] (d, top, left, h->l_stride); - if(h->cbp & (1<qp,d,h->l_stride); + if (h->cbp & (1<qp, d, h->l_stride); } /* chroma intra prediction */ ff_cavs_load_intra_pred_chroma(h); - h->intra_pred_c[pred_mode_uv](h->cu, &h->top_border_u[h->mbx*10], + h->intra_pred_c[pred_mode_uv](h->cu, &h->top_border_u[h->mbx * 10], h->left_border_u, h->c_stride); - h->intra_pred_c[pred_mode_uv](h->cv, &h->top_border_v[h->mbx*10], + h->intra_pred_c[pred_mode_uv](h->cv, &h->top_border_v[h->mbx * 10], h->left_border_v, h->c_stride); decode_residual_chroma(h); - ff_cavs_filter(h,I_8X8); + ff_cavs_filter(h, I_8X8); set_mv_intra(h); return 0; } -static void decode_mb_p(AVSContext *h, enum cavs_mb mb_type) { - GetBitContext *gb = &h->s.gb; +static inline void set_intra_mode_default(AVSContext *h) +{ + if (h->stream_revision > 0) { + h->pred_mode_Y[3] = h->pred_mode_Y[6] = NOT_AVAIL; + h->top_pred_Y[h->mbx * 2 + 0] = h->top_pred_Y[h->mbx * 2 + 1] = NOT_AVAIL; + } else { + h->pred_mode_Y[3] = h->pred_mode_Y[6] = INTRA_L_LP; + h->top_pred_Y[h->mbx * 2 + 0] = h->top_pred_Y[h->mbx * 2 + 1] = INTRA_L_LP; + } +} + +static void decode_mb_p(AVSContext *h, enum cavs_mb mb_type) +{ + GetBitContext *gb = &h->gb; int ref[4]; ff_cavs_init_mb(h); - switch(mb_type) { + switch (mb_type) { case P_SKIP: ff_cavs_mv(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_PSKIP, BLK_16X16, 0); break; case P_16X16: ref[0] = h->ref_flag ? 0 : get_bits1(gb); - ff_cavs_mv(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_MEDIAN, BLK_16X16,ref[0]); + ff_cavs_mv(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_MEDIAN, BLK_16X16, ref[0]); break; case P_16X8: ref[0] = h->ref_flag ? 0 : get_bits1(gb); @@ -275,8 +738,8 @@ static void decode_mb_p(AVSContext *h, enum cavs_mb mb_type) { case P_8X16: ref[0] = h->ref_flag ? 0 : get_bits1(gb); ref[1] = h->ref_flag ? 0 : get_bits1(gb); - ff_cavs_mv(h, MV_FWD_X0, MV_FWD_B3, MV_PRED_LEFT, BLK_8X16, ref[0]); - ff_cavs_mv(h, MV_FWD_X1, MV_FWD_C2, MV_PRED_TOPRIGHT,BLK_8X16, ref[1]); + ff_cavs_mv(h, MV_FWD_X0, MV_FWD_B3, MV_PRED_LEFT, BLK_8X16, ref[0]); + ff_cavs_mv(h, MV_FWD_X1, MV_FWD_C2, MV_PRED_TOPRIGHT, BLK_8X16, ref[1]); break; case P_8X8: ref[0] = h->ref_flag ? 0 : get_bits1(gb); @@ -291,13 +754,14 @@ static void decode_mb_p(AVSContext *h, enum cavs_mb mb_type) { ff_cavs_inter(h, mb_type); set_intra_mode_default(h); store_mvs(h); - if(mb_type != P_SKIP) + if (mb_type != P_SKIP) decode_residual_inter(h); - ff_cavs_filter(h,mb_type); + ff_cavs_filter(h, mb_type); h->col_type_base[h->mbidx] = mb_type; } -static void decode_mb_b(AVSContext *h, enum cavs_mb mb_type) { +static void decode_mb_b(AVSContext *h, enum cavs_mb mb_type) +{ int block; enum cavs_sub_mb sub_type[4]; int flags; @@ -309,18 +773,18 @@ static void decode_mb_b(AVSContext *h, enum cavs_mb mb_type) { set_mvs(&h->mv[MV_FWD_X0], BLK_16X16); h->mv[MV_BWD_X0] = ff_cavs_dir_mv; set_mvs(&h->mv[MV_BWD_X0], BLK_16X16); - switch(mb_type) { + switch (mb_type) { case B_SKIP: case B_DIRECT: - if(!h->col_type_base[h->mbidx]) { + if (!h->col_type_base[h->mbidx]) { /* intra MB at co-location, do in-plane prediction */ ff_cavs_mv(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_BSKIP, BLK_16X16, 1); ff_cavs_mv(h, MV_BWD_X0, MV_BWD_C2, MV_PRED_BSKIP, BLK_16X16, 0); } else /* direct prediction from co-located P MB, block-wise */ - for(block=0;block<4;block++) - mv_pred_direct(h,&h->mv[mv_scan[block]], - &h->col_mv[h->mbidx*4 + block]); + for (block = 0; block < 4; block++) + mv_pred_direct(h, &h->mv[mv_scan[block]], + &h->col_mv[h->mbidx * 4 + block]); break; case B_FWD_16X16: ff_cavs_mv(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_MEDIAN, BLK_16X16, 1); @@ -333,76 +797,76 @@ static void decode_mb_b(AVSContext *h, enum cavs_mb mb_type) { ff_cavs_mv(h, MV_BWD_X0, MV_BWD_C2, MV_PRED_MEDIAN, BLK_16X16, 0); break; case B_8X8: - for(block=0;block<4;block++) - sub_type[block] = get_bits(&h->s.gb,2); - for(block=0;block<4;block++) { - switch(sub_type[block]) { + for (block = 0; block < 4; block++) + sub_type[block] = get_bits(&h->gb, 2); + for (block = 0; block < 4; block++) { + switch (sub_type[block]) { case B_SUB_DIRECT: - if(!h->col_type_base[h->mbidx]) { + if (!h->col_type_base[h->mbidx]) { /* intra MB at co-location, do in-plane prediction */ - ff_cavs_mv(h, mv_scan[block], mv_scan[block]-3, - MV_PRED_BSKIP, BLK_8X8, 1); - ff_cavs_mv(h, mv_scan[block]+MV_BWD_OFFS, - mv_scan[block]-3+MV_BWD_OFFS, - MV_PRED_BSKIP, BLK_8X8, 0); + ff_cavs_mv(h, mv_scan[block], mv_scan[block] - 3, + MV_PRED_BSKIP, BLK_8X8, 1); + ff_cavs_mv(h, mv_scan[block] + MV_BWD_OFFS, + mv_scan[block] - 3 + MV_BWD_OFFS, + MV_PRED_BSKIP, BLK_8X8, 0); } else - mv_pred_direct(h,&h->mv[mv_scan[block]], - &h->col_mv[h->mbidx*4 + block]); + mv_pred_direct(h, &h->mv[mv_scan[block]], + &h->col_mv[h->mbidx * 4 + block]); break; case B_SUB_FWD: - ff_cavs_mv(h, mv_scan[block], mv_scan[block]-3, - MV_PRED_MEDIAN, BLK_8X8, 1); + ff_cavs_mv(h, mv_scan[block], mv_scan[block] - 3, + MV_PRED_MEDIAN, BLK_8X8, 1); break; case B_SUB_SYM: - ff_cavs_mv(h, mv_scan[block], mv_scan[block]-3, - MV_PRED_MEDIAN, BLK_8X8, 1); + ff_cavs_mv(h, mv_scan[block], mv_scan[block] - 3, + MV_PRED_MEDIAN, BLK_8X8, 1); mv_pred_sym(h, &h->mv[mv_scan[block]], BLK_8X8); break; } } - for(block=0;block<4;block++) { - if(sub_type[block] == B_SUB_BWD) - ff_cavs_mv(h, mv_scan[block]+MV_BWD_OFFS, - mv_scan[block]+MV_BWD_OFFS-3, - MV_PRED_MEDIAN, BLK_8X8, 0); + for (block = 0; block < 4; block++) { + if (sub_type[block] == B_SUB_BWD) + ff_cavs_mv(h, mv_scan[block] + MV_BWD_OFFS, + mv_scan[block] + MV_BWD_OFFS - 3, + MV_PRED_MEDIAN, BLK_8X8, 0); } break; default: assert((mb_type > B_SYM_16X16) && (mb_type < B_8X8)); flags = ff_cavs_partition_flags[mb_type]; - if(mb_type & 1) { /* 16x8 macroblock types */ - if(flags & FWD0) + if (mb_type & 1) { /* 16x8 macroblock types */ + if (flags & FWD0) ff_cavs_mv(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_TOP, BLK_16X8, 1); - if(flags & SYM0) + if (flags & SYM0) mv_pred_sym(h, &h->mv[MV_FWD_X0], BLK_16X8); - if(flags & FWD1) + if (flags & FWD1) ff_cavs_mv(h, MV_FWD_X2, MV_FWD_A1, MV_PRED_LEFT, BLK_16X8, 1); - if(flags & SYM1) + if (flags & SYM1) mv_pred_sym(h, &h->mv[MV_FWD_X2], BLK_16X8); - if(flags & BWD0) + if (flags & BWD0) ff_cavs_mv(h, MV_BWD_X0, MV_BWD_C2, MV_PRED_TOP, BLK_16X8, 0); - if(flags & BWD1) + if (flags & BWD1) ff_cavs_mv(h, MV_BWD_X2, MV_BWD_A1, MV_PRED_LEFT, BLK_16X8, 0); } else { /* 8x16 macroblock types */ - if(flags & FWD0) + if (flags & FWD0) ff_cavs_mv(h, MV_FWD_X0, MV_FWD_B3, MV_PRED_LEFT, BLK_8X16, 1); - if(flags & SYM0) + if (flags & SYM0) mv_pred_sym(h, &h->mv[MV_FWD_X0], BLK_8X16); - if(flags & FWD1) - ff_cavs_mv(h,MV_FWD_X1,MV_FWD_C2,MV_PRED_TOPRIGHT,BLK_8X16,1); - if(flags & SYM1) + if (flags & FWD1) + ff_cavs_mv(h, MV_FWD_X1, MV_FWD_C2, MV_PRED_TOPRIGHT, BLK_8X16, 1); + if (flags & SYM1) mv_pred_sym(h, &h->mv[MV_FWD_X1], BLK_8X16); - if(flags & BWD0) + if (flags & BWD0) ff_cavs_mv(h, MV_BWD_X0, MV_BWD_B3, MV_PRED_LEFT, BLK_8X16, 0); - if(flags & BWD1) - ff_cavs_mv(h,MV_BWD_X1,MV_BWD_C2,MV_PRED_TOPRIGHT,BLK_8X16,0); + if (flags & BWD1) + ff_cavs_mv(h, MV_BWD_X1, MV_BWD_C2, MV_PRED_TOPRIGHT, BLK_8X16, 0); } } ff_cavs_inter(h, mb_type); set_intra_mode_default(h); - if(mb_type != B_SKIP) + if (mb_type != B_SKIP) decode_residual_inter(h); - ff_cavs_filter(h,mb_type); + ff_cavs_filter(h, mb_type); } /***************************************************************************** @@ -411,41 +875,46 @@ static void decode_mb_b(AVSContext *h, enum cavs_mb mb_type) { * ****************************************************************************/ -static inline int decode_slice_header(AVSContext *h, GetBitContext *gb) { - if(h->stc > 0xAF) - av_log(h->s.avctx, AV_LOG_ERROR, "unexpected start code 0x%02x\n", h->stc); - h->mby = h->stc; - h->mbidx = h->mby*h->mb_width; +static inline int decode_slice_header(AVSContext *h, GetBitContext *gb) +{ + if (h->stc > 0xAF) + av_log(h->avctx, AV_LOG_ERROR, "unexpected start code 0x%02x\n", h->stc); + h->mby = h->stc; + h->mbidx = h->mby * h->mb_width; /* mark top macroblocks as unavailable */ - h->flags &= ~(B_AVAIL|C_AVAIL); - if((h->mby == 0) && (!h->qp_fixed)){ + h->flags &= ~(B_AVAIL | C_AVAIL); + if ((h->mby == 0) && (!h->qp_fixed)) { h->qp_fixed = get_bits1(gb); - h->qp = get_bits(gb,6); + h->qp = get_bits(gb, 6); } /* inter frame or second slice can have weighting params */ - if((h->pic_type != FF_I_TYPE) || (!h->pic_structure && h->mby >= h->mb_width/2)) - if(get_bits1(gb)) { //slice_weighting_flag - av_log(h->s.avctx, AV_LOG_ERROR, + if ((h->cur.f->pict_type != AV_PICTURE_TYPE_I) || + (!h->pic_structure && h->mby >= h->mb_width / 2)) + if (get_bits1(gb)) { //slice_weighting_flag + av_log(h->avctx, AV_LOG_ERROR, "weighted prediction not yet supported\n"); } return 0; } -static inline int check_for_slice(AVSContext *h) { - GetBitContext *gb = &h->s.gb; +static inline int check_for_slice(AVSContext *h) +{ + GetBitContext *gb = &h->gb; int align; - if(h->mbx) + if (h->mbx) return 0; align = (-get_bits_count(gb)) & 7; /* check for stuffing byte */ - if(!align && (show_bits(gb,8) == 0x80)) + if (!align && (show_bits(gb, 8) == 0x80)) align = 8; - if((show_bits_long(gb,24+align) & 0xFFFFFF) == 0x000001) { - skip_bits_long(gb,24+align); - h->stc = get_bits(gb,8); - decode_slice_header(h,gb); + if ((show_bits_long(gb, 24 + align) & 0xFFFFFF) == 0x000001) { + skip_bits_long(gb, 24 + align); + h->stc = get_bits(gb, 8); + if (h->stc >= h->mb_height) + return 0; + decode_slice_header(h, gb); return 1; } return 0; @@ -457,130 +926,147 @@ static inline int check_for_slice(AVSContext *h) { * ****************************************************************************/ -static int decode_pic(AVSContext *h) { - MpegEncContext *s = &h->s; - int skip_count = -1; +static int decode_pic(AVSContext *h) +{ + int ret; + int skip_count = -1; enum cavs_mb mb_type; - if (!s->context_initialized) { - s->avctx->idct_algo = FF_IDCT_CAVS; - if (MPV_common_init(s) < 0) - return -1; - ff_init_scantable(s->dsp.idct_permutation,&h->scantable,ff_zigzag_direct); + if (!h->top_qp) { + av_log(h->avctx, AV_LOG_ERROR, "No sequence header decoded yet\n"); + return AVERROR_INVALIDDATA; } - skip_bits(&s->gb,16);//bbv_dwlay - if(h->stc == PIC_PB_START_CODE) { - h->pic_type = get_bits(&s->gb,2) + FF_I_TYPE; - if(h->pic_type > FF_B_TYPE) { - av_log(s->avctx, AV_LOG_ERROR, "illegal picture type\n"); - return -1; + + av_frame_unref(h->cur.f); + + skip_bits(&h->gb, 16);//bbv_dwlay + if (h->stc == PIC_PB_START_CODE) { + h->cur.f->pict_type = get_bits(&h->gb, 2) + AV_PICTURE_TYPE_I; + if (h->cur.f->pict_type > AV_PICTURE_TYPE_B) { + av_log(h->avctx, AV_LOG_ERROR, "illegal picture type\n"); + return AVERROR_INVALIDDATA; } /* make sure we have the reference frames we need */ - if(!h->DPB[0].data[0] || - (!h->DPB[1].data[0] && h->pic_type == FF_B_TYPE)) - return -1; + if (!h->DPB[0].f->data[0] || + (!h->DPB[1].f->data[0] && h->cur.f->pict_type == AV_PICTURE_TYPE_B)) + return AVERROR_INVALIDDATA; } else { - h->pic_type = FF_I_TYPE; - if(get_bits1(&s->gb)) - skip_bits(&s->gb,24);//time_code + h->cur.f->pict_type = AV_PICTURE_TYPE_I; + if (get_bits1(&h->gb)) + skip_bits(&h->gb, 24);//time_code + /* old sample clips were all progressive and no low_delay, + bump stream revision if detected otherwise */ + if (h->low_delay || !(show_bits(&h->gb, 9) & 1)) + h->stream_revision = 1; + /* similarly test top_field_first and repeat_first_field */ + else if (show_bits(&h->gb, 11) & 3) + h->stream_revision = 1; + if (h->stream_revision > 0) + skip_bits(&h->gb, 1); //marker_bit + } + + ret = ff_get_buffer(h->avctx, h->cur.f, h->cur.f->pict_type == AV_PICTURE_TYPE_B ? + 0 : AV_GET_BUFFER_FLAG_REF); + if (ret < 0) + return ret; + + if (!h->edge_emu_buffer) { + int alloc_size = FFALIGN(FFABS(h->cur.f->linesize[0]) + 32, 32); + h->edge_emu_buffer = av_mallocz(alloc_size * 2 * 24); + if (!h->edge_emu_buffer) + return AVERROR(ENOMEM); } - /* release last B frame */ - if(h->picture.data[0]) - s->avctx->release_buffer(s->avctx, (AVFrame *)&h->picture); - s->avctx->get_buffer(s->avctx, (AVFrame *)&h->picture); ff_cavs_init_pic(h); - h->picture.poc = get_bits(&s->gb,8)*2; + h->cur.poc = get_bits(&h->gb, 8) * 2; /* get temporal distances and MV scaling factors */ - if(h->pic_type != FF_B_TYPE) { - h->dist[0] = (h->picture.poc - h->DPB[0].poc + 512) % 512; + if (h->cur.f->pict_type != AV_PICTURE_TYPE_B) { + h->dist[0] = (h->cur.poc - h->DPB[0].poc + 512) % 512; } else { - h->dist[0] = (h->DPB[0].poc - h->picture.poc + 512) % 512; + h->dist[0] = (h->DPB[0].poc - h->cur.poc + 512) % 512; } - h->dist[1] = (h->picture.poc - h->DPB[1].poc + 512) % 512; + h->dist[1] = (h->cur.poc - h->DPB[1].poc + 512) % 512; h->scale_den[0] = h->dist[0] ? 512/h->dist[0] : 0; h->scale_den[1] = h->dist[1] ? 512/h->dist[1] : 0; - if(h->pic_type == FF_B_TYPE) { - h->sym_factor = h->dist[0]*h->scale_den[1]; + if (h->cur.f->pict_type == AV_PICTURE_TYPE_B) { + h->sym_factor = h->dist[0] * h->scale_den[1]; } else { - h->direct_den[0] = h->dist[0] ? 16384/h->dist[0] : 0; - h->direct_den[1] = h->dist[1] ? 16384/h->dist[1] : 0; + h->direct_den[0] = h->dist[0] ? 16384 / h->dist[0] : 0; + h->direct_den[1] = h->dist[1] ? 16384 / h->dist[1] : 0; } - if(s->low_delay) - get_ue_golomb(&s->gb); //bbv_check_times - h->progressive = get_bits1(&s->gb); + if (h->low_delay) + get_ue_golomb(&h->gb); //bbv_check_times + h->progressive = get_bits1(&h->gb); h->pic_structure = 1; - if(!h->progressive) - h->pic_structure = get_bits1(&s->gb); - if(!h->pic_structure && h->stc == PIC_PB_START_CODE) - skip_bits1(&s->gb); //advanced_pred_mode_disable - skip_bits1(&s->gb); //top_field_first - skip_bits1(&s->gb); //repeat_first_field - h->qp_fixed = get_bits1(&s->gb); - h->qp = get_bits(&s->gb,6); - if(h->pic_type == FF_I_TYPE) { - if(!h->progressive && !h->pic_structure) - skip_bits1(&s->gb);//what is this? - skip_bits(&s->gb,4); //reserved bits + if (!h->progressive) + h->pic_structure = get_bits1(&h->gb); + if (!h->pic_structure && h->stc == PIC_PB_START_CODE) + skip_bits1(&h->gb); //advanced_pred_mode_disable + skip_bits1(&h->gb); //top_field_first + skip_bits1(&h->gb); //repeat_first_field + h->qp_fixed = get_bits1(&h->gb); + h->qp = get_bits(&h->gb, 6); + if (h->cur.f->pict_type == AV_PICTURE_TYPE_I) { + if (!h->progressive && !h->pic_structure) + skip_bits1(&h->gb);//what is this? + skip_bits(&h->gb, 4); //reserved bits } else { - if(!(h->pic_type == FF_B_TYPE && h->pic_structure == 1)) - h->ref_flag = get_bits1(&s->gb); - skip_bits(&s->gb,4); //reserved bits - h->skip_mode_flag = get_bits1(&s->gb); + if (!(h->cur.f->pict_type == AV_PICTURE_TYPE_B && h->pic_structure == 1)) + h->ref_flag = get_bits1(&h->gb); + skip_bits(&h->gb, 4); //reserved bits + h->skip_mode_flag = get_bits1(&h->gb); } - h->loop_filter_disable = get_bits1(&s->gb); - if(!h->loop_filter_disable && get_bits1(&s->gb)) { - h->alpha_offset = get_se_golomb(&s->gb); - h->beta_offset = get_se_golomb(&s->gb); + h->loop_filter_disable = get_bits1(&h->gb); + if (!h->loop_filter_disable && get_bits1(&h->gb)) { + h->alpha_offset = get_se_golomb(&h->gb); + h->beta_offset = get_se_golomb(&h->gb); } else { h->alpha_offset = h->beta_offset = 0; } - if(h->pic_type == FF_I_TYPE) { + if (h->cur.f->pict_type == AV_PICTURE_TYPE_I) { do { check_for_slice(h); decode_mb_i(h, 0); - } while(ff_cavs_next_mb(h)); - } else if(h->pic_type == FF_P_TYPE) { + } while (ff_cavs_next_mb(h)); + } else if (h->cur.f->pict_type == AV_PICTURE_TYPE_P) { do { - if(check_for_slice(h)) + if (check_for_slice(h)) skip_count = -1; - if(h->skip_mode_flag && (skip_count < 0)) - skip_count = get_ue_golomb(&s->gb); - if(h->skip_mode_flag && skip_count--) { - decode_mb_p(h,P_SKIP); + if (h->skip_mode_flag && (skip_count < 0)) + skip_count = get_ue_golomb(&h->gb); + if (h->skip_mode_flag && skip_count--) { + decode_mb_p(h, P_SKIP); } else { - mb_type = get_ue_golomb(&s->gb) + P_SKIP + h->skip_mode_flag; - if(mb_type > P_8X8) + mb_type = get_ue_golomb(&h->gb) + P_SKIP + h->skip_mode_flag; + if (mb_type > P_8X8) decode_mb_i(h, mb_type - P_8X8 - 1); else - decode_mb_p(h,mb_type); + decode_mb_p(h, mb_type); } - } while(ff_cavs_next_mb(h)); - } else { /* FF_B_TYPE */ + } while (ff_cavs_next_mb(h)); + } else { /* AV_PICTURE_TYPE_B */ do { - if(check_for_slice(h)) + if (check_for_slice(h)) skip_count = -1; - if(h->skip_mode_flag && (skip_count < 0)) - skip_count = get_ue_golomb(&s->gb); - if(h->skip_mode_flag && skip_count--) { - decode_mb_b(h,B_SKIP); + if (h->skip_mode_flag && (skip_count < 0)) + skip_count = get_ue_golomb(&h->gb); + if (h->skip_mode_flag && skip_count--) { + decode_mb_b(h, B_SKIP); } else { - mb_type = get_ue_golomb(&s->gb) + B_SKIP + h->skip_mode_flag; - if(mb_type > B_8X8) + mb_type = get_ue_golomb(&h->gb) + B_SKIP + h->skip_mode_flag; + if (mb_type > B_8X8) decode_mb_i(h, mb_type - B_8X8 - 1); else - decode_mb_b(h,mb_type); + decode_mb_b(h, mb_type); } - } while(ff_cavs_next_mb(h)); + } while (ff_cavs_next_mb(h)); } - if(h->pic_type != FF_B_TYPE) { - if(h->DPB[1].data[0]) - s->avctx->release_buffer(s->avctx, (AVFrame *)&h->DPB[1]); - h->DPB[1] = h->DPB[0]; - h->DPB[0] = h->picture; - memset(&h->picture,0,sizeof(Picture)); + if (h->cur.f->pict_type != AV_PICTURE_TYPE_B) { + av_frame_unref(h->DPB[1].f); + FFSWAP(AVSFrame, h->cur, h->DPB[1]); + FFSWAP(AVSFrame, h->DPB[0], h->DPB[1]); } return 0; } @@ -591,57 +1077,65 @@ static int decode_pic(AVSContext *h) { * ****************************************************************************/ -static int decode_seq_header(AVSContext *h) { - MpegEncContext *s = &h->s; +static int decode_seq_header(AVSContext *h) +{ int frame_rate_code; + int width, height; + + h->profile = get_bits(&h->gb, 8); + h->level = get_bits(&h->gb, 8); + skip_bits1(&h->gb); //progressive sequence - h->profile = get_bits(&s->gb,8); - h->level = get_bits(&s->gb,8); - skip_bits1(&s->gb); //progressive sequence - s->width = get_bits(&s->gb,14); - s->height = get_bits(&s->gb,14); - skip_bits(&s->gb,2); //chroma format - skip_bits(&s->gb,3); //sample_precision - h->aspect_ratio = get_bits(&s->gb,4); - frame_rate_code = get_bits(&s->gb,4); - skip_bits(&s->gb,18);//bit_rate_lower - skip_bits1(&s->gb); //marker_bit - skip_bits(&s->gb,12);//bit_rate_upper - s->low_delay = get_bits1(&s->gb); - h->mb_width = (s->width + 15) >> 4; - h->mb_height = (s->height + 15) >> 4; - h->s.avctx->time_base.den = ff_frame_rate_tab[frame_rate_code].num; - h->s.avctx->time_base.num = ff_frame_rate_tab[frame_rate_code].den; - h->s.avctx->width = s->width; - h->s.avctx->height = s->height; - if(!h->top_qp) + width = get_bits(&h->gb, 14); + height = get_bits(&h->gb, 14); + if ((h->width || h->height) && (h->width != width || h->height != height)) { + avpriv_report_missing_feature(h->avctx, + "Width/height changing in CAVS"); + return AVERROR_PATCHWELCOME; + } + h->width = width; + h->height = height; + + skip_bits(&h->gb, 2); //chroma format + skip_bits(&h->gb, 3); //sample_precision + h->aspect_ratio = get_bits(&h->gb, 4); + frame_rate_code = get_bits(&h->gb, 4); + skip_bits(&h->gb, 18); //bit_rate_lower + skip_bits1(&h->gb); //marker_bit + skip_bits(&h->gb, 12); //bit_rate_upper + h->low_delay = get_bits1(&h->gb); + h->mb_width = (h->width + 15) >> 4; + h->mb_height = (h->height + 15) >> 4; + h->avctx->time_base.den = ff_mpeg12_frame_rate_tab[frame_rate_code].num; + h->avctx->time_base.num = ff_mpeg12_frame_rate_tab[frame_rate_code].den; + h->avctx->width = h->width; + h->avctx->height = h->height; + if (!h->top_qp) ff_cavs_init_top_lines(h); return 0; } -static void cavs_flush(AVCodecContext * avctx) { +static void cavs_flush(AVCodecContext * avctx) +{ AVSContext *h = avctx->priv_data; h->got_keyframe = 0; } -static int cavs_decode_frame(AVCodecContext * avctx,void *data, int *data_size, - AVPacket *avpkt) { +static int cavs_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, + AVPacket *avpkt) +{ + AVSContext *h = avctx->priv_data; const uint8_t *buf = avpkt->data; - int buf_size = avpkt->size; - AVSContext *h = avctx->priv_data; - MpegEncContext *s = &h->s; - int input_size; + int buf_size = avpkt->size; + uint32_t stc = -1; + int input_size, ret; const uint8_t *buf_end; const uint8_t *buf_ptr; - AVFrame *picture = data; - uint32_t stc = -1; - - s->avctx = avctx; if (buf_size == 0) { - if(!s->low_delay && h->DPB[0].data[0]) { - *data_size = sizeof(AVPicture); - *picture = *(AVFrame *) &h->DPB[0]; + if (!h->low_delay && h->DPB[0].f->data[0]) { + *got_frame = 1; + av_frame_move_ref(data, h->DPB[0].f); } return 0; } @@ -649,67 +1143,66 @@ static int cavs_decode_frame(AVCodecContext * avctx,void *data, int *data_size, buf_ptr = buf; buf_end = buf + buf_size; for(;;) { - buf_ptr = ff_find_start_code(buf_ptr,buf_end, &stc); - if(stc & 0xFFFFFE00) - return FFMAX(0, buf_ptr - buf - s->parse_context.last_index); - input_size = (buf_end - buf_ptr)*8; - switch(stc) { + buf_ptr = avpriv_find_start_code(buf_ptr, buf_end, &stc); + if ((stc & 0xFFFFFE00) || buf_ptr == buf_end) + return FFMAX(0, buf_ptr - buf); + input_size = (buf_end - buf_ptr) * 8; + switch (stc) { case CAVS_START_CODE: - init_get_bits(&s->gb, buf_ptr, input_size); + init_get_bits(&h->gb, buf_ptr, input_size); decode_seq_header(h); break; case PIC_I_START_CODE: - if(!h->got_keyframe) { - if(h->DPB[0].data[0]) - avctx->release_buffer(avctx, (AVFrame *)&h->DPB[0]); - if(h->DPB[1].data[0]) - avctx->release_buffer(avctx, (AVFrame *)&h->DPB[1]); + if (!h->got_keyframe) { + av_frame_unref(h->DPB[0].f); + av_frame_unref(h->DPB[1].f); h->got_keyframe = 1; } case PIC_PB_START_CODE: - *data_size = 0; - if(!h->got_keyframe) + *got_frame = 0; + if (!h->got_keyframe) break; - init_get_bits(&s->gb, buf_ptr, input_size); + init_get_bits(&h->gb, buf_ptr, input_size); h->stc = stc; - if(decode_pic(h)) + if (decode_pic(h)) break; - *data_size = sizeof(AVPicture); - if(h->pic_type != FF_B_TYPE) { - if(h->DPB[1].data[0]) { - *picture = *(AVFrame *) &h->DPB[1]; + *got_frame = 1; + if (h->cur.f->pict_type != AV_PICTURE_TYPE_B) { + if (h->DPB[1].f->data[0]) { + if ((ret = av_frame_ref(data, h->DPB[1].f)) < 0) + return ret; } else { - *data_size = 0; + *got_frame = 0; } - } else - *picture = *(AVFrame *) &h->picture; + } else { + av_frame_move_ref(data, h->cur.f); + } break; case EXT_START_CODE: - //mpeg_decode_extension(avctx,buf_ptr, input_size); + //mpeg_decode_extension(avctx, buf_ptr, input_size); break; case USER_START_CODE: - //mpeg_decode_user_data(avctx,buf_ptr, input_size); + //mpeg_decode_user_data(avctx, buf_ptr, input_size); break; default: if (stc <= SLICE_MAX_START_CODE) { - init_get_bits(&s->gb, buf_ptr, input_size); - decode_slice_header(h, &s->gb); + init_get_bits(&h->gb, buf_ptr, input_size); + decode_slice_header(h, &h->gb); } break; } } } -AVCodec cavs_decoder = { - "cavs", - CODEC_TYPE_VIDEO, - CODEC_ID_CAVS, - sizeof(AVSContext), - ff_cavs_init, - NULL, - ff_cavs_end, - cavs_decode_frame, - CODEC_CAP_DR1 | CODEC_CAP_DELAY, - .flush= cavs_flush, - .long_name= NULL_IF_CONFIG_SMALL("Chinese AVS video (AVS1-P2, JiZhun profile)"), +AVCodec ff_cavs_decoder = { + .name = "cavs", + .long_name = NULL_IF_CONFIG_SMALL("Chinese AVS (Audio Video Standard) (AVS1-P2, JiZhun profile)"), + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_CAVS, + .priv_data_size = sizeof(AVSContext), + .init = ff_cavs_init, + .close = ff_cavs_end, + .decode = cavs_decode_frame, + .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY, + .flush = cavs_flush, };