* Chinese AVS video (AVS1-P2, JiZhun profile) decoder.
* Copyright (c) 2006 Stefan Gehrer <stefan.gehrer@gmx.de>
*
- * 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 <stefan.gehrer@gmx.de>
*/
#include "avcodec.h"
-#include "get_bits.h"
-#include "golomb.h"
+#include "bitstream.h"
#include "cavs.h"
+#include "golomb.h"
+#include "internal.h"
+#include "mpeg12data.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;
+ int m = FF_SIGNBIT(col_mv->x);
pmv_fw->dist = h->dist[1];
pmv_bw->dist = h->dist[0];
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);
- 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->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 = FF_SIGNBIT(col_mv->y);
+ 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 */
****************************************************************************/
/** kth-order exponential golomb code */
-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);
+static inline int get_ue_code(BitstreamContext *bc, int order)
+{
+ if (order) {
+ int ret = get_ue_golomb(bc) << order;
+ return ret + bitstream_read(bc, order);
}
- return get_ue_golomb(gb);
+ return get_ue_golomb(bc);
+}
+
+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;
}
/**
* @param dst location of sample block
* @param stride line stride in frame buffer
*/
-static int decode_residual_block(AVSContext *h, GetBitContext *gb,
+static int decode_residual_block(AVSContext *h, BitstreamContext *bc,
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, ptrdiff_t 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(bc, r->golomb_order);
+ if (level_code >= ESCAPE_CODE) {
+ run = ((level_code - ESCAPE_CODE) >> 1) + 1;
+ esc_code = get_ue_code(bc, 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->bc, chroma_dec, 0,
+ cavs_chroma_qp[h->qp], h->cu, h->c_stride);
+ if (h->cbp & (1 << 5))
+ decode_residual_block(h, &h->bc, 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->bc);
+ 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<<block))
- decode_residual_block(h,&h->s.gb,ff_cavs_inter_dec,0,h->qp,
+ if (h->cbp && !h->qp_fixed)
+ h->qp = (h->qp + get_se_golomb(&h->bc)) & 63;
+ for (block = 0; block < 4; block++)
+ if (h->cbp & (1 << block))
+ decode_residual_block(h, &h->bc, inter_dec, 0, h->qp,
h->cy + h->luma_scan[block], h->l_stride);
decode_residual_chroma(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)
+{
+ BitstreamContext *bc = &h->bc;
+ unsigned pred_mode_uv;
+ int block;
uint8_t top[18];
uint8_t *left = NULL;
uint8_t *d;
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 (!bitstream_read_bit(bc)) {
+ int rem_mode = bitstream_read(bc, 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;
+ pred_mode_uv = get_ue_golomb(bc);
+ 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)
- 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 (h->cur.f->pict_type == AV_PICTURE_TYPE_I)
+ cbp_code = get_ue_golomb(bc);
+ 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)
- h->qp = (h->qp + get_se_golomb(gb)) & 63; //qp_delta
+ if (h->cbp && !h->qp_fixed)
+ h->qp = (h->qp + get_se_golomb(bc)) & 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<<block))
- decode_residual_block(h,gb,ff_cavs_intra_dec,1,h->qp,d,h->l_stride);
+ if (h->cbp & (1<<block))
+ decode_residual_block(h, bc, intra_dec, 1, h->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)
+{
+ BitstreamContext *bc = &h->bc;
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]);
+ ref[0] = h->ref_flag ? 0 : bitstream_read_bit(bc);
+ 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);
- ref[2] = h->ref_flag ? 0 : get_bits1(gb);
+ ref[0] = h->ref_flag ? 0 : bitstream_read_bit(bc);
+ ref[2] = h->ref_flag ? 0 : bitstream_read_bit(bc);
ff_cavs_mv(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_TOP, BLK_16X8, ref[0]);
ff_cavs_mv(h, MV_FWD_X2, MV_FWD_A1, MV_PRED_LEFT, BLK_16X8, ref[2]);
break;
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]);
+ ref[0] = h->ref_flag ? 0 : bitstream_read_bit(bc);
+ ref[1] = h->ref_flag ? 0 : bitstream_read_bit(bc);
+ 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);
- ref[1] = h->ref_flag ? 0 : get_bits1(gb);
- ref[2] = h->ref_flag ? 0 : get_bits1(gb);
- ref[3] = h->ref_flag ? 0 : get_bits1(gb);
+ ref[0] = h->ref_flag ? 0 : bitstream_read_bit(bc);
+ ref[1] = h->ref_flag ? 0 : bitstream_read_bit(bc);
+ ref[2] = h->ref_flag ? 0 : bitstream_read_bit(bc);
+ ref[3] = h->ref_flag ? 0 : bitstream_read_bit(bc);
ff_cavs_mv(h, MV_FWD_X0, MV_FWD_B3, MV_PRED_MEDIAN, BLK_8X8, ref[0]);
ff_cavs_mv(h, MV_FWD_X1, MV_FWD_C2, MV_PRED_MEDIAN, BLK_8X8, ref[1]);
ff_cavs_mv(h, MV_FWD_X2, MV_FWD_X1, MV_PRED_MEDIAN, BLK_8X8, ref[2]);
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;
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);
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] = bitstream_read(&h->bc, 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);
}
/*****************************************************************************
*
****************************************************************************/
-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, BitstreamContext *bc)
+{
+ 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->qp_fixed = get_bits1(gb);
- h->qp = get_bits(gb,6);
+ h->flags &= ~(B_AVAIL | C_AVAIL);
+ if ((h->mby == 0) && (!h->qp_fixed)) {
+ h->qp_fixed = bitstream_read_bit(bc);
+ h->qp = bitstream_read(bc, 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 (bitstream_read_bit(bc)) { // 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)
+{
+ BitstreamContext *bc = &h->bc;
int align;
- if(h->mbx)
+ if (h->mbx)
return 0;
- align = (-get_bits_count(gb)) & 7;
+ align = (-bitstream_tell(bc)) & 7;
/* check for stuffing byte */
- if(!align && (show_bits(gb,8) == 0x80))
+ if (!align && (bitstream_peek(bc, 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 ((bitstream_peek(bc, 24 + align) & 0xFFFFFF) == 0x000001) {
+ bitstream_skip(bc, 24 + align);
+ h->stc = bitstream_read(bc, 8);
+ if (h->stc >= h->mb_height)
+ return 0;
+ decode_slice_header(h, bc);
return 1;
}
return 0;
*
****************************************************************************/
-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);
+
+ bitstream_skip(&h->bc, 16); // bbv_dwlay
+ if (h->stc == PIC_PB_START_CODE) {
+ h->cur.f->pict_type = bitstream_read(&h->bc, 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 (bitstream_read_bit(&h->bc))
+ bitstream_skip(&h->bc, 24); // time_code
+ /* old sample clips were all progressive and no low_delay,
+ bump stream revision if detected otherwise */
+ if (h->low_delay || !(bitstream_peek(&h->bc, 9) & 1))
+ h->stream_revision = 1;
+ /* similarly test top_field_first and repeat_first_field */
+ else if (bitstream_peek(&h->bc, 11) & 3)
+ h->stream_revision = 1;
+ if (h->stream_revision > 0)
+ bitstream_skip(&h->bc, 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 = bitstream_read(&h->bc, 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->bc); // bbv_check_times
+ h->progressive = bitstream_read_bit(&h->bc);
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 = bitstream_read_bit(&h->bc);
+ if (!h->pic_structure && h->stc == PIC_PB_START_CODE)
+ bitstream_skip(&h->bc, 1); // advanced_pred_mode_disable
+ bitstream_skip(&h->bc, 1); // top_field_first
+ bitstream_skip(&h->bc, 1); // repeat_first_field
+ h->qp_fixed = bitstream_read_bit(&h->bc);
+ h->qp = bitstream_read(&h->bc, 6);
+ if (h->cur.f->pict_type == AV_PICTURE_TYPE_I) {
+ if (!h->progressive && !h->pic_structure)
+ bitstream_skip(&h->bc, 1); // what is this?
+ bitstream_skip(&h->bc, 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 = bitstream_read_bit(&h->bc);
+ bitstream_skip(&h->bc, 4); // reserved bits
+ h->skip_mode_flag = bitstream_read_bit(&h->bc);
}
- 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 = bitstream_read_bit(&h->bc);
+ if (!h->loop_filter_disable && bitstream_read_bit(&h->bc)) {
+ h->alpha_offset = get_se_golomb(&h->bc);
+ h->beta_offset = get_se_golomb(&h->bc);
} 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->bc);
+ 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->bc) + 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->bc);
+ 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->bc) + 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;
}
*
****************************************************************************/
-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 = bitstream_read(&h->bc, 8);
+ h->level = bitstream_read(&h->bc, 8);
+ bitstream_skip(&h->bc, 1); // 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 = bitstream_read(&h->bc, 14);
+ height = bitstream_read(&h->bc, 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;
+
+ bitstream_skip(&h->bc, 2); // chroma format
+ bitstream_skip(&h->bc, 3); // sample_precision
+ h->aspect_ratio = bitstream_read(&h->bc, 4);
+ frame_rate_code = bitstream_read(&h->bc, 4);
+ bitstream_skip(&h->bc, 18); // bit_rate_lower
+ bitstream_skip(&h->bc, 1); // marker_bit
+ bitstream_skip(&h->bc, 12); // bit_rate_upper
+ h->low_delay = bitstream_read_bit(&h->bc);
+ h->mb_width = (h->width + 15) >> 4;
+ h->mb_height = (h->height + 15) >> 4;
+ h->avctx->framerate = ff_mpeg12_frame_rate_tab[frame_rate_code];
+ 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;
}
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);
+ bitstream_init(&h->bc, 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);
+ bitstream_init(&h->bc, 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);
+ bitstream_init(&h->bc, buf_ptr, input_size);
+ decode_slice_header(h, &h->bc);
}
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 = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY,
+ .flush = cavs_flush,
};