c03d45def9
As long as the new frame is smaller than the size that was originally allocated, we don't need to free and reallocate the memory allocated. Instead, do the allocation on the size of the first frame. We could make this passed in from the application instead, if we wanted to support external upscaling. Change-Id: I204d17a130728bbd91155bb4bd863a99bb99b038
78 lines
1.8 KiB
C
78 lines
1.8 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_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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