104 lines
3.0 KiB
C
104 lines
3.0 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef VPX_SCALE_YV12CONFIG_H_
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#define VPX_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 "./vpx_config.h"
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#include "vpx/vpx_codec.h"
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#include "vpx/vpx_frame_buffer.h"
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#include "vpx/vpx_integer.h"
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#define VP8BORDERINPIXELS 32
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#define VP9INNERBORDERINPIXELS 96
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#define VP9_INTERP_EXTEND 4
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#define VP9_ENC_BORDER_IN_PIXELS 160
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#define VP9_DEC_BORDER_IN_PIXELS 32
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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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uint8_t *buffer_alloc;
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int buffer_alloc_sz;
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int border;
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int 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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vpx_color_space_t color_space;
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vpx_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 vp8_yv12_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width, int height,
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int border);
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int vp8_yv12_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width,
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int height, int border);
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int vp8_yv12_de_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf);
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int vpx_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_VP9_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 libvpx is using the frame buffer callbacks to handle memory.
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// If cb is not NULL, libvpx will call cb with minimum size in bytes needed
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// to decode the current frame. If cb is NULL, libvpx 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 vpx_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_VP9_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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vpx_codec_frame_buffer_t *fb,
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vpx_get_frame_buffer_cb_fn_t cb, void *cb_priv);
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int vpx_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 // VPX_SCALE_YV12CONFIG_H_
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