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/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    32
  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 } YV12_BUFFER_CONFIG;
  57
  58 int vp8_yv12_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
  59                                 int width, int height, int border);
  60 int vp8_yv12_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
  61                                   int width, int height, int border);
  62 int vp8_yv12_de_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf);
  63
  64 int vp9_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
  65                            int width, int height, int ss_x, int ss_y,
  66                            int border);
  67
  68 // Updates the yv12 buffer config with the frame buffer. If cb is not
  69 // NULL, then libvpx is using the frame buffer callbacks to handle memory.
  70 // If cb is not NULL, libvpx will call cb with minimum size in bytes needed
  71 // to decode the current frame. If cb is NULL, libvpx will allocate memory
  72 // internally to decode the current frame. Returns 0 on success. Returns < 0
  73 // on failure.
  74 int vp9_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
  75                              int width, int height, int ss_x, int ss_y,
  76                              int border,
  77                              vpx_codec_frame_buffer_t *fb,
  78                              vpx_get_frame_buffer_cb_fn_t cb,
  79                              void *cb_priv);
  80 int vp9_free_frame_buffer(YV12_BUFFER_CONFIG *ybf);
  81
  82 #ifdef __cplusplus
  83 }
  84 #endif
  85
  86 #endif  // VPX_SCALE_YV12CONFIG_H_