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- /*
- * Copyright (C) 2016 Open Broadcast Systems Ltd.
- * Author 2016 Rostislav Pehlivanov <atomnuker@gmail.com>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg 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,
- * 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
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
- #ifndef AVCODEC_VC2ENC_DWT_H
- #define AVCODEC_VC2ENC_DWT_H
- #include <stddef.h>
- #include <stdint.h>
- typedef int32_t dwtcoef;
- enum VC2TransformType {
- VC2_TRANSFORM_9_7 = 0, /* Deslauriers-Dubuc (9,7) */
- VC2_TRANSFORM_5_3 = 1, /* LeGall (5,3) */
- VC2_TRANSFORM_13_7 = 2, /* Deslauriers-Dubuc (13,7) */
- VC2_TRANSFORM_HAAR = 3, /* Haar without shift */
- VC2_TRANSFORM_HAAR_S = 4, /* Haar with 1 shift/lvl */
- VC2_TRANSFORM_FIDEL = 5, /* Fidelity filter */
- VC2_TRANSFORM_9_7_I = 6, /* Daubechies (9,7) */
- VC2_TRANSFORMS_NB
- };
- typedef struct VC2TransformContext {
- dwtcoef *buffer;
- int padding;
- void (*vc2_subband_dwt[VC2_TRANSFORMS_NB])(struct VC2TransformContext *t,
- dwtcoef *data, ptrdiff_t stride,
- int width, int height);
- } VC2TransformContext;
- int ff_vc2enc_init_transforms(VC2TransformContext *t, int p_stride, int p_height,
- int slice_w, int slice_h);
- void ff_vc2enc_free_transforms(VC2TransformContext *t);
- #endif /* AVCODEC_VC2ENC_DWT_H */
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