1 /* 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef VPX_SCALE_YV12CONFIG_H_ 12 #define VPX_SCALE_YV12CONFIG_H_ 13 14 #ifdef __cplusplus 15 extern "C" { 16 #endif 17 18 #include "vpx/vpx_frame_buffer.h" 19 #include "vpx/vpx_integer.h" 20 21 #define VP8BORDERINPIXELS 32 22 #define VP9INNERBORDERINPIXELS 96 23 #define VP9_INTERP_EXTEND 4 24 #define VP9_ENC_BORDER_IN_PIXELS 160 25 #define VP9_DEC_BORDER_IN_PIXELS 0 26 27 typedef struct yv12_buffer_config { 28 int y_width; 29 int y_height; 30 int y_crop_width; 31 int y_crop_height; 32 int y_stride; 33 34 int uv_width; 35 int uv_height; 36 int uv_crop_width; 37 int uv_crop_height; 38 int uv_stride; 39 40 int alpha_width; 41 int alpha_height; 42 int alpha_stride; 43 44 uint8_t *y_buffer; 45 uint8_t *u_buffer; 46 uint8_t *v_buffer; 47 uint8_t *alpha_buffer; 48 49 uint8_t *buffer_alloc; 50 int buffer_alloc_sz; 51 int border; 52 int frame_size; 53 54 int corrupted; 55 int flags; 56 57 int fb_index; 58 } YV12_BUFFER_CONFIG; 59 60 int vp8_yv12_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, 61 int width, int height, int border); 62 int vp8_yv12_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, 63 int width, int height, int border); 64 int vp8_yv12_de_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf); 65 66 int vp9_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, 67 int width, int height, int ss_x, int ss_y, 68 int border); 69 70 // Updates the yv12 buffer config with the frame buffer. If cb is not 71 // NULL, then libvpx is using the frame buffer callbacks to handle memory. 72 // If cb is not NULL, libvpx will call cb with minimum size in bytes needed 73 // to decode the current frame. If cb is NULL, libvpx will allocate memory 74 // internally to decode the current frame. Returns 0 on success. Returns < 0 75 // on failure. 76 int vp9_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, 77 int width, int height, int ss_x, int ss_y, 78 int border, 79 vpx_codec_frame_buffer_t *fb, 80 vpx_get_frame_buffer_cb_fn_t cb, 81 void *cb_priv); 82 int vp9_free_frame_buffer(YV12_BUFFER_CONFIG *ybf); 83 84 #ifdef __cplusplus 85 } 86 #endif 87 88 #endif // VPX_SCALE_YV12CONFIG_H_ 89
