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/* |
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* Copyright (c) 2002 The FFmpeg Project |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg 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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* FFmpeg 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 FFmpeg; 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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#ifndef AVCODEC_WMV2_H |
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#define AVCODEC_WMV2_H |
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#include "avcodec.h" |
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#include "intrax8.h" |
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#include "mpegvideo.h" |
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#include "wmv2dsp.h" |
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#define SKIP_TYPE_NONE 0 |
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#define SKIP_TYPE_MPEG 1 |
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#define SKIP_TYPE_ROW 2 |
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#define SKIP_TYPE_COL 3 |
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typedef struct Wmv2Context { |
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MpegEncContext s; |
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IntraX8Context x8; |
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WMV2DSPContext wdsp; |
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int j_type_bit; |
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int j_type; |
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int abt_flag; |
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int abt_type; |
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int abt_type_table[6]; |
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int per_mb_abt; |
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int per_block_abt; |
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int mspel_bit; |
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int cbp_table_index; |
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int top_left_mv_flag; |
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int per_mb_rl_bit; |
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int skip_type; |
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int hshift; |
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ScanTable abt_scantable[2]; |
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DECLARE_ALIGNED(32, int16_t, abt_block2)[6][64]; |
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} Wmv2Context; |
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void ff_wmv2_common_init(Wmv2Context *w); |
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int ff_wmv2_decode_mb(MpegEncContext *s, int16_t block[6][64]); |
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int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number); |
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void ff_wmv2_encode_mb(MpegEncContext * s, int16_t block[6][64], |
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int motion_x, int motion_y); |
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int ff_wmv2_decode_picture_header(MpegEncContext * s); |
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int ff_wmv2_decode_secondary_picture_header(MpegEncContext * s); |
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void ff_wmv2_add_mb(MpegEncContext *s, int16_t block[6][64], |
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uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr); |
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void ff_mspel_motion(MpegEncContext *s, |
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uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, |
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uint8_t **ref_picture, op_pixels_func (*pix_op)[4], |
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int motion_x, int motion_y, int h); |
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static av_always_inline int wmv2_get_cbp_table_index(MpegEncContext *s, int cbp_index) |
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{ |
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static const uint8_t map[3][3] = { |
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{ 0, 2, 1 }, |
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{ 1, 0, 2 }, |
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{ 2, 1, 0 }, |
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}; |
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return map[(s->qscale > 10) + (s->qscale > 20)][cbp_index]; |
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} |
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#endif /* AVCODEC_WMV2_H */ |