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96 lines
3.1 KiB
96 lines
3.1 KiB
12 years ago
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/*
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* Copyright (c) 2003 Michael Niedermayer
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* ASUS V1/V2 encoder/decoder common data
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*/
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#include <stdint.h>
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#include "asv.h"
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#include "avcodec.h"
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#include "dsputil.h"
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const uint8_t ff_asv_scantab[64] = {
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0x00,0x08,0x01,0x09,0x10,0x18,0x11,0x19,
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0x02,0x0A,0x03,0x0B,0x12,0x1A,0x13,0x1B,
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0x04,0x0C,0x05,0x0D,0x20,0x28,0x21,0x29,
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0x06,0x0E,0x07,0x0F,0x14,0x1C,0x15,0x1D,
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0x22,0x2A,0x23,0x2B,0x30,0x38,0x31,0x39,
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0x16,0x1E,0x17,0x1F,0x24,0x2C,0x25,0x2D,
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0x32,0x3A,0x33,0x3B,0x26,0x2E,0x27,0x2F,
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0x34,0x3C,0x35,0x3D,0x36,0x3E,0x37,0x3F,
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};
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const uint8_t ff_asv_ccp_tab[17][2] = {
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{0x2,2}, {0x7,5}, {0xB,5}, {0x3,5},
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{0xD,5}, {0x5,5}, {0x9,5}, {0x1,5},
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{0xE,5}, {0x6,5}, {0xA,5}, {0x2,5},
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{0xC,5}, {0x4,5}, {0x8,5}, {0x3,2},
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{0xF,5}, //EOB
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};
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const uint8_t ff_asv_level_tab[7][2] = {
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{3,4}, {3,3}, {3,2}, {0,3}, {2,2}, {2,3}, {2,4}
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};
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const uint8_t ff_asv_dc_ccp_tab[8][2] = {
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{0x1,2}, {0xD,4}, {0xF,4}, {0xC,4},
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{0x5,3}, {0xE,4}, {0x4,3}, {0x0,2},
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};
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const uint8_t ff_asv_ac_ccp_tab[16][2] = {
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{0x00,2}, {0x3B,6}, {0x0A,4}, {0x3A,6},
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{0x02,3}, {0x39,6}, {0x3C,6}, {0x38,6},
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{0x03,3}, {0x3D,6}, {0x08,4}, {0x1F,5},
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{0x09,4}, {0x0B,4}, {0x0D,4}, {0x0C,4},
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};
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const uint8_t ff_asv2_level_tab[63][2] = {
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{0x3F,10},{0x2F,10},{0x37,10},{0x27,10},{0x3B,10},{0x2B,10},{0x33,10},{0x23,10},
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{0x3D,10},{0x2D,10},{0x35,10},{0x25,10},{0x39,10},{0x29,10},{0x31,10},{0x21,10},
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{0x1F, 8},{0x17, 8},{0x1B, 8},{0x13, 8},{0x1D, 8},{0x15, 8},{0x19, 8},{0x11, 8},
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{0x0F, 6},{0x0B, 6},{0x0D, 6},{0x09, 6},
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{0x07, 4},{0x05, 4},
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{0x03, 2},
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{0x00, 5},
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{0x02, 2},
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{0x04, 4},{0x06, 4},
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{0x08, 6},{0x0C, 6},{0x0A, 6},{0x0E, 6},
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{0x10, 8},{0x18, 8},{0x14, 8},{0x1C, 8},{0x12, 8},{0x1A, 8},{0x16, 8},{0x1E, 8},
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{0x20,10},{0x30,10},{0x28,10},{0x38,10},{0x24,10},{0x34,10},{0x2C,10},{0x3C,10},
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{0x22,10},{0x32,10},{0x2A,10},{0x3A,10},{0x26,10},{0x36,10},{0x2E,10},{0x3E,10},
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};
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av_cold void ff_asv_common_init(AVCodecContext *avctx) {
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ASV1Context * const a = avctx->priv_data;
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ff_dsputil_init(&a->dsp, avctx);
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a->mb_width = (avctx->width + 15) / 16;
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a->mb_height = (avctx->height + 15) / 16;
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a->mb_width2 = (avctx->width + 0) / 16;
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a->mb_height2 = (avctx->height + 0) / 16;
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avctx->coded_frame= &a->picture;
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a->avctx= avctx;
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}
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