/* * 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; 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_width, int p_height); void ff_vc2enc_free_transforms(VC2TransformContext *t); #endif /* AVCODEC_VC2ENC_DWT_H */