89 строки
2.7 KiB
C
89 строки
2.7 KiB
C
/*
|
|
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license
|
|
* that can be found in the LICENSE file in the root of the source
|
|
* tree. An additional intellectual property rights grant can be found
|
|
* in the file PATENTS. All contributing project authors may
|
|
* be found in the AUTHORS file in the root of the source tree.
|
|
*/
|
|
|
|
#ifndef VPX_SCALE_YV12CONFIG_H_
|
|
#define VPX_SCALE_YV12CONFIG_H_
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include "vpx/vpx_external_frame_buffer.h"
|
|
#include "vpx/vpx_integer.h"
|
|
|
|
#define VP8BORDERINPIXELS 32
|
|
#define VP9INNERBORDERINPIXELS 96
|
|
#define VP9BORDERINPIXELS 160
|
|
#define VP9_INTERP_EXTEND 4
|
|
|
|
typedef struct yv12_buffer_config {
|
|
int y_width;
|
|
int y_height;
|
|
int y_crop_width;
|
|
int y_crop_height;
|
|
int y_stride;
|
|
/* int yinternal_width; */
|
|
|
|
int uv_width;
|
|
int uv_height;
|
|
int uv_crop_width;
|
|
int uv_crop_height;
|
|
int uv_stride;
|
|
/* int uvinternal_width; */
|
|
|
|
int alpha_width;
|
|
int alpha_height;
|
|
int alpha_stride;
|
|
|
|
uint8_t *y_buffer;
|
|
uint8_t *u_buffer;
|
|
uint8_t *v_buffer;
|
|
uint8_t *alpha_buffer;
|
|
|
|
uint8_t *buffer_alloc;
|
|
int buffer_alloc_sz;
|
|
int border;
|
|
int frame_size;
|
|
|
|
int corrupted;
|
|
int flags;
|
|
} YV12_BUFFER_CONFIG;
|
|
|
|
int vp8_yv12_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
|
|
int width, int height, int border);
|
|
int vp8_yv12_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
|
|
int width, int height, int border);
|
|
int vp8_yv12_de_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf);
|
|
|
|
int vp9_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
|
|
int width, int height, int ss_x, int ss_y,
|
|
int border);
|
|
|
|
// Updates the yv12 buffer config with the frame buffer. If ext_fb is not
|
|
// NULL then libvpx is using external frame buffers. The function will
|
|
// check if the frame buffer is big enough to fit the decoded frame and
|
|
// try to reallocate the frame buffer. If ext_fb is not NULL and the frame
|
|
// buffer is not big enough libvpx will call cb with minimum size in bytes.
|
|
//
|
|
// Returns 0 on success. Returns < 0 on failure.
|
|
int vp9_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
|
|
int width, int height, int ss_x, int ss_y,
|
|
int border,
|
|
vpx_codec_frame_buffer_t *ext_fb,
|
|
vpx_realloc_frame_buffer_cb_fn_t cb,
|
|
void *user_priv);
|
|
int vp9_free_frame_buffer(YV12_BUFFER_CONFIG *ybf);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif // VPX_SCALE_YV12CONFIG_H_
|