9b7be88883
Updates the YV12_BUFFER_CONFIG structure to be crop-aware. The exiting width/height parameters are left unchanged, storing the width and height algined to a 16 byte boundary. The cropped dimensions are added as new fields. This fixes a nasty visual pulse when switching between scaled and unscaled frame dimensions due to a mismatch between the scaling ratio and the 16-byte aligned sizes. Change-Id: Id4a3f6aea6b9b9ae38bdfa1b87b7eb2cfcdd57b6
80 lines
1.9 KiB
C
80 lines
1.9 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 YV12_CONFIG_H
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#define YV12_CONFIG_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "vpx/vpx_integer.h"
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#define VP8BORDERINPIXELS 32
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#define VP9BORDERINPIXELS 64
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#define VP9_INTERP_EXTEND 4
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/*************************************
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For INT_YUV:
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Y = (R+G*2+B)/4;
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U = (R-B)/2;
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V = (G*2 - R - B)/4;
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And
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R = Y+U-V;
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G = Y+V;
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B = Y-U-V;
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************************************/
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typedef enum
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{
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REG_YUV = 0, /* Regular yuv */
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INT_YUV = 1 /* The type of yuv that can be tranfer to and from RGB through integer transform */
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}
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YUV_TYPE;
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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 yinternal_width; */
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int uv_width;
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int uv_height;
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int uv_stride;
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/* int uvinternal_width; */
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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 *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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YUV_TYPE clrtype;
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int corrupted;
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int flags;
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} YV12_BUFFER_CONFIG;
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int vp8_yv12_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
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int width, int height, int border);
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int vp8_yv12_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
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int width, int height, int border);
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int vp8_yv12_de_alloc_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 // YV12_CONFIG_H
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