vpx_scale/yv12config.h

   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_config.h"
  19 #include "vpx/vpx_codec.h"
  20 #include "vpx/vpx_frame_buffer.h"
  21 #include "vpx/vpx_integer.h"
  22
  23 #define VP8BORDERINPIXELS           32
  24 #define VP9INNERBORDERINPIXELS      96
  25 #define VP9_INTERP_EXTEND           4
  26 #define VP9_ENC_BORDER_IN_PIXELS    160
  27 #define VP9_DEC_BORDER_IN_PIXELS    32
  28
  29 typedef struct yv12_buffer_config {
  30   int   y_width;
  31   int   y_height;
  32   int   y_crop_width;
  33   int   y_crop_height;
  34   int   y_stride;
  35
  36   int   uv_width;
  37   int   uv_height;
  38   int   uv_crop_width;
  39   int   uv_crop_height;
  40   int   uv_stride;
  41
  42   int   alpha_width;
  43   int   alpha_height;
  44   int   alpha_stride;
  45
  46   uint8_t *y_buffer;
  47   uint8_t *u_buffer;
  48   uint8_t *v_buffer;
  49   uint8_t *alpha_buffer;
  50
  51   uint8_t *buffer_alloc;
  52   int buffer_alloc_sz;
  53   int border;
  54   int frame_size;
  55   int subsampling_x;
  56   int subsampling_y;
  57   unsigned int bit_depth;
  58   vpx_color_space_t color_space;
  59   vpx_color_range_t color_range;
  60   int render_width;
  61   int render_height;
  62
  63   int corrupted;
  64   int flags;
  65 } YV12_BUFFER_CONFIG;
  66
  67 #define YV12_FLAG_HIGHBITDEPTH 8
  68
  69 int vp8_yv12_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
  70                                 int width, int height, int border);
  71 int vp8_yv12_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
  72                                   int width, int height, int border);
  73 int vp8_yv12_de_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf);
  74
  75 int vpx_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
  76                            int width, int height, int ss_x, int ss_y,
  77 #if CONFIG_VP9_HIGHBITDEPTH
  78                            int use_highbitdepth,
  79 #endif
  80                            int border, int byte_alignment);
  81
  82 // Updates the yv12 buffer config with the frame buffer. |byte_alignment| must
  83 // be a power of 2, from 32 to 1024. 0 sets legacy alignment. If cb is not
  84 // NULL, then libvpx is using the frame buffer callbacks to handle memory.
  85 // If cb is not NULL, libvpx will call cb with minimum size in bytes needed
  86 // to decode the current frame. If cb is NULL, libvpx will allocate memory
  87 // internally to decode the current frame. Returns 0 on success. Returns < 0
  88 // on failure.
  89 int vpx_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
  90                              int width, int height, int ss_x, int ss_y,
  91 #if CONFIG_VP9_HIGHBITDEPTH
  92                              int use_highbitdepth,
  93 #endif
  94                              int border,
  95                              int byte_alignment,
  96                              vpx_codec_frame_buffer_t *fb,
  97                              vpx_get_frame_buffer_cb_fn_t cb,
  98                              void *cb_priv);
  99 int vpx_free_frame_buffer(YV12_BUFFER_CONFIG *ybf);
 100
 101 #ifdef __cplusplus
 102 }
 103 #endif
 104
 105 #endif  // VPX_SCALE_YV12CONFIG_H_