111 строки
3.2 KiB
C
111 строки
3.2 KiB
C
/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#ifndef AOM_SCALE_YV12CONFIG_H_
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#define AOM_SCALE_YV12CONFIG_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "./aom_config.h"
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#include "aom/aom_codec.h"
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#include "aom/aom_frame_buffer.h"
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#include "aom/aom_integer.h"
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#if CONFIG_EXT_PARTITION
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#define AOMINNERBORDERINPIXELS 160
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#else
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#define AOMINNERBORDERINPIXELS 96
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#endif // CONFIG_EXT_PARTITION
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#define AOM_INTERP_EXTEND 4
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// TODO(jingning): Use unified inter predictor for encoder and
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// decoder during the development process. Revisit the frame border
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// to improve the decoder performance.
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#define AOM_BORDER_IN_PIXELS 160
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typedef struct yv12_buffer_config {
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int y_width;
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int y_height;
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int y_crop_width;
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int y_crop_height;
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int y_stride;
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int uv_width;
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int uv_height;
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int uv_crop_width;
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int uv_crop_height;
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int uv_stride;
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int alpha_width;
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int alpha_height;
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int alpha_stride;
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uint8_t *y_buffer;
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uint8_t *u_buffer;
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uint8_t *v_buffer;
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uint8_t *alpha_buffer;
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#if CONFIG_HIGHBITDEPTH && CONFIG_GLOBAL_MOTION
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// If the frame is stored in a 16-bit buffer, this stores an 8-bit version
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// for use in global motion detection. It is allocated on-demand.
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uint8_t *y_buffer_8bit;
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#endif
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uint8_t *buffer_alloc;
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size_t buffer_alloc_sz;
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int border;
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size_t frame_size;
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int subsampling_x;
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int subsampling_y;
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unsigned int bit_depth;
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aom_color_space_t color_space;
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aom_color_range_t color_range;
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int render_width;
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int render_height;
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int corrupted;
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int flags;
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} YV12_BUFFER_CONFIG;
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#define YV12_FLAG_HIGHBITDEPTH 8
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int aom_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width, int height,
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int ss_x, int ss_y,
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#if CONFIG_HIGHBITDEPTH
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int use_highbitdepth,
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#endif
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int border, int byte_alignment);
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// Updates the yv12 buffer config with the frame buffer. |byte_alignment| must
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// be a power of 2, from 32 to 1024. 0 sets legacy alignment. If cb is not
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// NULL, then libaom is using the frame buffer callbacks to handle memory.
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// If cb is not NULL, libaom will call cb with minimum size in bytes needed
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// to decode the current frame. If cb is NULL, libaom will allocate memory
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// internally to decode the current frame. Returns 0 on success. Returns < 0
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// on failure.
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int aom_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width, int height,
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int ss_x, int ss_y,
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#if CONFIG_HIGHBITDEPTH
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int use_highbitdepth,
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#endif
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int border, int byte_alignment,
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aom_codec_frame_buffer_t *fb,
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aom_get_frame_buffer_cb_fn_t cb, void *cb_priv);
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int aom_free_frame_buffer(YV12_BUFFER_CONFIG *ybf);
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#ifdef __cplusplus
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}
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#endif
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#endif // AOM_SCALE_YV12CONFIG_H_
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