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54 lines
2.0 KiB
54 lines
2.0 KiB
/* |
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* Copyright (C) 2016 Open Broadcast Systems Ltd. |
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* Author 2016 Rostislav Pehlivanov <atomnuker@gmail.com> |
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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_VC2ENC_DWT_H |
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#define AVCODEC_VC2ENC_DWT_H |
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#include <stddef.h> |
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#include <stdint.h> |
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typedef int32_t dwtcoef; |
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enum VC2TransformType { |
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VC2_TRANSFORM_9_7 = 0, /* Deslauriers-Dubuc (9,7) */ |
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VC2_TRANSFORM_5_3 = 1, /* LeGall (5,3) */ |
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VC2_TRANSFORM_13_7 = 2, /* Deslauriers-Dubuc (13,7) */ |
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VC2_TRANSFORM_HAAR = 3, /* Haar without shift */ |
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VC2_TRANSFORM_HAAR_S = 4, /* Haar with 1 shift/lvl */ |
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VC2_TRANSFORM_FIDEL = 5, /* Fidelity filter */ |
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VC2_TRANSFORM_9_7_I = 6, /* Daubechies (9,7) */ |
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VC2_TRANSFORMS_NB |
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}; |
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typedef struct VC2TransformContext { |
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dwtcoef *buffer; |
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int padding; |
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void (*vc2_subband_dwt[VC2_TRANSFORMS_NB])(struct VC2TransformContext *t, |
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dwtcoef *data, ptrdiff_t stride, |
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int width, int height); |
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} VC2TransformContext; |
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int ff_vc2enc_init_transforms(VC2TransformContext *t, int p_stride, int p_height, |
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int slice_w, int slice_h); |
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void ff_vc2enc_free_transforms(VC2TransformContext *t); |
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#endif /* AVCODEC_VC2ENC_DWT_H */
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