/src/libvpx/vpx_scale/generic/yv12config.c

Source
/*
 *  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.
 */

#include <assert.h>
#include <limits.h>
#include <stdint.h>

#include "vpx_scale/yv12config.h"
#include "vpx_mem/vpx_mem.h"
#include "vpx_ports/mem.h"

#if defined(VPX_MAX_ALLOCABLE_MEMORY)
#include "vp9/common/vp9_onyxc_int.h"
#endif  // VPX_MAX_ALLOCABLE_MEMORY
/****************************************************************************
 *  Exports
 ****************************************************************************/

/****************************************************************************
 *
 ****************************************************************************/
#define yv12_align_addr(addr, align) \
  (void *)(((size_t)(addr) + ((align) - 1)) & (size_t)-(align))

int vp8_yv12_de_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf) {
  if (ybf) {
    // If libvpx is using frame buffer callbacks then buffer_alloc_sz must
    // not be set.
    if (ybf->buffer_alloc_sz > 0) {
      vpx_free(ybf->buffer_alloc);
    }

    /* buffer_alloc isn't accessed by most functions.  Rather y_buffer,
      u_buffer and v_buffer point to buffer_alloc and are used.  Clear out
      all of this so that a freed pointer isn't inadvertently used */
    memset(ybf, 0, sizeof(YV12_BUFFER_CONFIG));
  } else {
    return -1;
  }

  return 0;
}

int vp8_yv12_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width,
                                  int height, int border) {
  if (ybf) {
    int aligned_width = (width + 15) & ~15;
    int aligned_height = (height + 15) & ~15;
    int y_stride = ((aligned_width + 2 * border) + 31) & ~31;
    int yplane_size = (aligned_height + 2 * border) * y_stride;
    int uv_width = aligned_width >> 1;
    int uv_height = aligned_height >> 1;
    /** There is currently a bunch of code which assumes
     *  uv_stride == y_stride/2, so enforce this here. */
    int uv_stride = y_stride >> 1;
    int uvplane_size = (uv_height + border) * uv_stride;
    const size_t frame_size = yplane_size + 2 * uvplane_size;

    if (!ybf->buffer_alloc) {
      ybf->buffer_alloc = (uint8_t *)vpx_memalign(32, frame_size);
      if (!ybf->buffer_alloc) {
        ybf->buffer_alloc_sz = 0;
        return -1;
      }
#if defined(__has_feature)
#if __has_feature(memory_sanitizer)
      // This memset is needed for fixing the issue of using uninitialized
      // value in msan test. It will cause a perf loss, so only do this for
      // msan test.
      memset(ybf->buffer_alloc, 0, frame_size);
#endif
#endif
      ybf->buffer_alloc_sz = frame_size;
    }

    if (ybf->buffer_alloc_sz < frame_size) return -1;

    /* Only support allocating buffers that have a border that's a multiple
     * of 32. The border restriction is required to get 16-byte alignment of
     * the start of the chroma rows without introducing an arbitrary gap
     * between planes, which would break the semantics of things like
     * vpx_img_set_rect(). */
    if (border & 0x1f) return -3;

    ybf->y_crop_width = width;
    ybf->y_crop_height = height;
    ybf->y_width = aligned_width;
    ybf->y_height = aligned_height;
    ybf->y_stride = y_stride;

    ybf->uv_crop_width = (width + 1) / 2;
    ybf->uv_crop_height = (height + 1) / 2;
    ybf->uv_width = uv_width;
    ybf->uv_height = uv_height;
    ybf->uv_stride = uv_stride;

    ybf->alpha_width = 0;
    ybf->alpha_height = 0;
    ybf->alpha_stride = 0;

    ybf->border = border;
    ybf->frame_size = frame_size;

    ybf->y_buffer = ybf->buffer_alloc + (border * y_stride) + border;
    ybf->u_buffer =
        ybf->buffer_alloc + yplane_size + (border / 2 * uv_stride) + border / 2;
    ybf->v_buffer = ybf->buffer_alloc + yplane_size + uvplane_size +
                    (border / 2 * uv_stride) + border / 2;
    ybf->alpha_buffer = NULL;

    ybf->corrupted = 0; /* assume not currupted by errors */
    return 0;
  }
  return -2;
}

int vp8_yv12_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width, int height,
                                int border) {
  if (ybf) {
    vp8_yv12_de_alloc_frame_buffer(ybf);
    return vp8_yv12_realloc_frame_buffer(ybf, width, height, border);
  }
  return -2;
}

#if CONFIG_VP9
// TODO(jkoleszar): Maybe replace this with struct vpx_image

int vpx_free_frame_buffer(YV12_BUFFER_CONFIG *ybf) {
  if (ybf) {
    if (ybf->buffer_alloc_sz > 0) {
      vpx_free(ybf->buffer_alloc);
    }

    /* buffer_alloc isn't accessed by most functions.  Rather y_buffer,
      u_buffer and v_buffer point to buffer_alloc and are used.  Clear out
      all of this so that a freed pointer isn't inadvertently used */
    memset(ybf, 0, sizeof(YV12_BUFFER_CONFIG));
  } else {
    return -1;
  }

  return 0;
}

int vpx_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width, int height,
                             int ss_x, int ss_y,
#if CONFIG_VP9_HIGHBITDEPTH
                             int use_highbitdepth,
#endif
                             int border, int byte_alignment,
                             vpx_codec_frame_buffer_t *fb,
                             vpx_get_frame_buffer_cb_fn_t cb, void *cb_priv) {
#if CONFIG_SIZE_LIMIT
  if (width > DECODE_WIDTH_LIMIT || height > DECODE_HEIGHT_LIMIT) return -1;
#endif

  /* Only support allocating buffers that have a border that's a multiple
   * of 32. The border restriction is required to get 16-byte alignment of
   * the start of the chroma rows without introducing an arbitrary gap
   * between planes, which would break the semantics of things like
   * vpx_img_set_rect(). */
  if (border & 0x1f) return -3;

  if (ybf) {
    const int vp9_byte_align = (byte_alignment == 0) ? 1 : byte_alignment;
    const int aligned_width = (width + 7) & ~7;
    const int aligned_height = (height + 7) & ~7;
    const int y_stride = ((aligned_width + 2 * border) + 31) & ~31;
    const uint64_t yplane_size =
        (aligned_height + 2 * border) * (uint64_t)y_stride + byte_alignment;
    const int uv_width = aligned_width >> ss_x;
    const int uv_height = aligned_height >> ss_y;
    const int uv_stride = y_stride >> ss_x;
    const int uv_border_w = border >> ss_x;
    const int uv_border_h = border >> ss_y;
    const uint64_t uvplane_size =
        (uv_height + 2 * uv_border_h) * (uint64_t)uv_stride + byte_alignment;

#if CONFIG_VP9_HIGHBITDEPTH
    const uint64_t frame_size =
        (1 + use_highbitdepth) * (yplane_size + 2 * uvplane_size);
#else
    const uint64_t frame_size = yplane_size + 2 * uvplane_size;
#endif  // CONFIG_VP9_HIGHBITDEPTH

    uint8_t *buf = NULL;

#if defined(VPX_MAX_ALLOCABLE_MEMORY)
    // The decoder may allocate REF_FRAMES frame buffers in the frame buffer
    // pool. Bound the total amount of allocated memory as if these REF_FRAMES
    // frame buffers were allocated in a single allocation.
    if (frame_size > VPX_MAX_ALLOCABLE_MEMORY / REF_FRAMES) return -1;
#endif  // VPX_MAX_ALLOCABLE_MEMORY

#if UINT64_MAX > SIZE_MAX
    // frame_size is stored in buffer_alloc_sz, which is a size_t. If it won't
    // fit, fail early.
    if (frame_size > SIZE_MAX) {
      return -1;
    }
#endif

    if (cb != NULL) {
      const int align_addr_extra_size = 31;
      const uint64_t external_frame_size = frame_size + align_addr_extra_size;

      assert(fb != NULL);

      if (external_frame_size != (size_t)external_frame_size) return -1;

      // Allocation to hold larger frame, or first allocation.
      if (cb(cb_priv, (size_t)external_frame_size, fb) < 0) return -1;

      if (fb->data == NULL || fb->size < external_frame_size) return -1;

      ybf->buffer_alloc = (uint8_t *)yv12_align_addr(fb->data, 32);

#if defined(__has_feature)
#if __has_feature(memory_sanitizer)
      // This memset is needed for fixing the issue of using uninitialized
      // value in msan test. It will cause a perf loss, so only do this for
      // msan test.
      memset(ybf->buffer_alloc, 0, (size_t)frame_size);
#endif
#endif
    } else if (frame_size > ybf->buffer_alloc_sz) {
      // Allocation to hold larger frame, or first allocation.
      vpx_free(ybf->buffer_alloc);
      ybf->buffer_alloc = NULL;
      ybf->buffer_alloc_sz = 0;

      ybf->buffer_alloc = (uint8_t *)vpx_memalign(32, (size_t)frame_size);
      if (!ybf->buffer_alloc) return -1;

      ybf->buffer_alloc_sz = (size_t)frame_size;

      // This memset is needed for fixing valgrind error from C loop filter
      // due to access uninitialized memory in frame border. It could be
      // removed if border is totally removed.
      memset(ybf->buffer_alloc, 0, ybf->buffer_alloc_sz);
    }

    ybf->y_crop_width = width;
    ybf->y_crop_height = height;
    ybf->y_width = aligned_width;
    ybf->y_height = aligned_height;
    ybf->y_stride = y_stride;

    ybf->uv_crop_width = (width + ss_x) >> ss_x;
    ybf->uv_crop_height = (height + ss_y) >> ss_y;
    ybf->uv_width = uv_width;
    ybf->uv_height = uv_height;
    ybf->uv_stride = uv_stride;

    ybf->border = border;
    ybf->frame_size = (size_t)frame_size;
    ybf->subsampling_x = ss_x;
    ybf->subsampling_y = ss_y;

    buf = ybf->buffer_alloc;
#if CONFIG_VP9_HIGHBITDEPTH
    if (use_highbitdepth) {
      // Store uint16 addresses when using 16bit framebuffers
      buf = CONVERT_TO_BYTEPTR(ybf->buffer_alloc);
      ybf->flags = YV12_FLAG_HIGHBITDEPTH;
    } else {
      ybf->flags = 0;
    }
#endif  // CONFIG_VP9_HIGHBITDEPTH

    ybf->y_buffer = (uint8_t *)yv12_align_addr(
        buf + (border * y_stride) + border, vp9_byte_align);
    ybf->u_buffer = (uint8_t *)yv12_align_addr(
        buf + yplane_size + (uv_border_h * uv_stride) + uv_border_w,
        vp9_byte_align);
    ybf->v_buffer =
        (uint8_t *)yv12_align_addr(buf + yplane_size + uvplane_size +
                                       (uv_border_h * uv_stride) + uv_border_w,
                                   vp9_byte_align);

    ybf->corrupted = 0; /* assume not corrupted by errors */
    return 0;
  }
  return -2;
}

int vpx_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width, int height,
                           int ss_x, int ss_y,
#if CONFIG_VP9_HIGHBITDEPTH
                           int use_highbitdepth,
#endif
                           int border, int byte_alignment) {
  if (ybf) {
    vpx_free_frame_buffer(ybf);
    return vpx_realloc_frame_buffer(ybf, width, height, ss_x, ss_y,
#if CONFIG_VP9_HIGHBITDEPTH
                                    use_highbitdepth,
#endif
                                    border, byte_alignment, NULL, NULL, NULL);
  }
  return -2;
}
#endif

Coverage Report

Created: 2025-11-16 07:20

Line	Count	Source
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		#include <assert.h>
12		#include <limits.h>
13		#include <stdint.h>
14
15		#include "vpx_scale/yv12config.h"
16		#include "vpx_mem/vpx_mem.h"
17		#include "vpx_ports/mem.h"
18
19		#if defined(VPX_MAX_ALLOCABLE_MEMORY)
20		#include "vp9/common/vp9_onyxc_int.h"
21		#endif // VPX_MAX_ALLOCABLE_MEMORY
22		/****************************************************************************
23		* Exports
24		****************************************************************************/
25
26		/****************************************************************************
27		*
28		****************************************************************************/
29		#define yv12_align_addr(addr, align) \
30	2.05M	(void *)(((size_t)(addr) + ((align) - 1)) & (size_t)-(align))
31
32	404k	int vp8_yv12_de_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf) {
33	404k	if (ybf) {
34		// If libvpx is using frame buffer callbacks then buffer_alloc_sz must
35		// not be set.
36	404k	if (ybf->buffer_alloc_sz > 0) {
37	120k	vpx_free(ybf->buffer_alloc);
38	120k	}
39
40		/* buffer_alloc isn't accessed by most functions. Rather y_buffer,
41		u_buffer and v_buffer point to buffer_alloc and are used. Clear out
42		all of this so that a freed pointer isn't inadvertently used */
43	404k	memset(ybf, 0, sizeof(YV12_BUFFER_CONFIG));
44	404k	} else {
45	0	return -1;
46	0	}
47
48	404k	return 0;
49	404k	}
50
51		int vp8_yv12_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width,
52	120k	int height, int border) {
53	120k	if (ybf) {
54	120k	int aligned_width = (width + 15) & ~15;
55	120k	int aligned_height = (height + 15) & ~15;
56	120k	int y_stride = ((aligned_width + 2 * border) + 31) & ~31;
57	120k	int yplane_size = (aligned_height + 2 * border) * y_stride;
58	120k	int uv_width = aligned_width >> 1;
59	120k	int uv_height = aligned_height >> 1;
60		/** There is currently a bunch of code which assumes
61		* uv_stride == y_stride/2, so enforce this here. */
62	120k	int uv_stride = y_stride >> 1;
63	120k	int uvplane_size = (uv_height + border) * uv_stride;
64	120k	const size_t frame_size = yplane_size + 2 * uvplane_size;
65
66	120k	if (!ybf->buffer_alloc) {
67	120k	ybf->buffer_alloc = (uint8_t *)vpx_memalign(32, frame_size);
68	120k	if (!ybf->buffer_alloc) {
69	0	ybf->buffer_alloc_sz = 0;
70	0	return -1;
71	0	}
72	120k	#if defined(__has_feature)
73		#if __has_feature(memory_sanitizer)
74		// This memset is needed for fixing the issue of using uninitialized
75		// value in msan test. It will cause a perf loss, so only do this for
76		// msan test.
77		memset(ybf->buffer_alloc, 0, frame_size);
78		#endif
79	120k	#endif
80	120k	ybf->buffer_alloc_sz = frame_size;
81	120k	}
82
83	120k	if (ybf->buffer_alloc_sz < frame_size) return -1;
84
85		/* Only support allocating buffers that have a border that's a multiple
86		* of 32. The border restriction is required to get 16-byte alignment of
87		* the start of the chroma rows without introducing an arbitrary gap
88		* between planes, which would break the semantics of things like
89		* vpx_img_set_rect(). */
90	120k	if (border & 0x1f) return -3;
91
92	120k	ybf->y_crop_width = width;
93	120k	ybf->y_crop_height = height;
94	120k	ybf->y_width = aligned_width;
95	120k	ybf->y_height = aligned_height;
96	120k	ybf->y_stride = y_stride;
97
98	120k	ybf->uv_crop_width = (width + 1) / 2;
99	120k	ybf->uv_crop_height = (height + 1) / 2;
100	120k	ybf->uv_width = uv_width;
101	120k	ybf->uv_height = uv_height;
102	120k	ybf->uv_stride = uv_stride;
103
104	120k	ybf->alpha_width = 0;
105	120k	ybf->alpha_height = 0;
106	120k	ybf->alpha_stride = 0;
107
108	120k	ybf->border = border;
109	120k	ybf->frame_size = frame_size;
110
111	120k	ybf->y_buffer = ybf->buffer_alloc + (border * y_stride) + border;
112	120k	ybf->u_buffer =
113	120k	ybf->buffer_alloc + yplane_size + (border / 2 * uv_stride) + border / 2;
114	120k	ybf->v_buffer = ybf->buffer_alloc + yplane_size + uvplane_size +
115	120k	(border / 2 * uv_stride) + border / 2;
116	120k	ybf->alpha_buffer = NULL;
117
118	120k	ybf->corrupted = 0; /* assume not currupted by errors */
119	120k	return 0;
120	120k	}
121	0	return -2;
122	120k	}
123
124		int vp8_yv12_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width, int height,
125	120k	int border) {
126	120k	if (ybf) {
127	120k	vp8_yv12_de_alloc_frame_buffer(ybf);
128	120k	return vp8_yv12_realloc_frame_buffer(ybf, width, height, border);
129	120k	}
130	0	return -2;
131	120k	}
132
133		#if CONFIG_VP9
134		// TODO(jkoleszar): Maybe replace this with struct vpx_image
135
136	593k	int vpx_free_frame_buffer(YV12_BUFFER_CONFIG *ybf) {
137	593k	if (ybf) {
138	593k	if (ybf->buffer_alloc_sz > 0) {
139	125k	vpx_free(ybf->buffer_alloc);
140	125k	}
141
142		/* buffer_alloc isn't accessed by most functions. Rather y_buffer,
143		u_buffer and v_buffer point to buffer_alloc and are used. Clear out
144		all of this so that a freed pointer isn't inadvertently used */
145	593k	memset(ybf, 0, sizeof(YV12_BUFFER_CONFIG));
146	593k	} else {
147	0	return -1;
148	0	}
149
150	593k	return 0;
151	593k	}
152
153		int vpx_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width, int height,
154		int ss_x, int ss_y,
155		#if CONFIG_VP9_HIGHBITDEPTH
156		int use_highbitdepth,
157		#endif
158		int border, int byte_alignment,
159		vpx_codec_frame_buffer_t *fb,
160	610k	vpx_get_frame_buffer_cb_fn_t cb, void *cb_priv) {
161	610k	#if CONFIG_SIZE_LIMIT
162	610k	if (width > DECODE_WIDTH_LIMIT \|\| height > DECODE_HEIGHT_LIMIT) return -1;
163	610k	#endif
164
165		/* Only support allocating buffers that have a border that's a multiple
166		* of 32. The border restriction is required to get 16-byte alignment of
167		* the start of the chroma rows without introducing an arbitrary gap
168		* between planes, which would break the semantics of things like
169		* vpx_img_set_rect(). */
170	610k	if (border & 0x1f) return -3;
171
172	610k	if (ybf) {
173	610k	const int vp9_byte_align = (byte_alignment == 0) ? 1 : byte_alignment;
174	610k	const int aligned_width = (width + 7) & ~7;
175	610k	const int aligned_height = (height + 7) & ~7;
176	610k	const int y_stride = ((aligned_width + 2 * border) + 31) & ~31;
177	610k	const uint64_t yplane_size =
178	610k	(aligned_height + 2 * border) * (uint64_t)y_stride + byte_alignment;
179	610k	const int uv_width = aligned_width >> ss_x;
180	610k	const int uv_height = aligned_height >> ss_y;
181	610k	const int uv_stride = y_stride >> ss_x;
182	610k	const int uv_border_w = border >> ss_x;
183	610k	const int uv_border_h = border >> ss_y;
184	610k	const uint64_t uvplane_size =
185	610k	(uv_height + 2 * uv_border_h) * (uint64_t)uv_stride + byte_alignment;
186
187	610k	#if CONFIG_VP9_HIGHBITDEPTH
188	610k	const uint64_t frame_size =
189	610k	(1 + use_highbitdepth) * (yplane_size + 2 * uvplane_size);
190		#else
191		const uint64_t frame_size = yplane_size + 2 * uvplane_size;
192		#endif // CONFIG_VP9_HIGHBITDEPTH
193
194	610k	uint8_t *buf = NULL;
195
196	610k	#if defined(VPX_MAX_ALLOCABLE_MEMORY)
197		// The decoder may allocate REF_FRAMES frame buffers in the frame buffer
198		// pool. Bound the total amount of allocated memory as if these REF_FRAMES
199		// frame buffers were allocated in a single allocation.
200	610k	if (frame_size > VPX_MAX_ALLOCABLE_MEMORY / REF_FRAMES) return -1;
201	609k	#endif // VPX_MAX_ALLOCABLE_MEMORY
202
203		#if UINT64_MAX > SIZE_MAX
204		// frame_size is stored in buffer_alloc_sz, which is a size_t. If it won't
205		// fit, fail early.
206		if (frame_size > SIZE_MAX) {
207		return -1;
208		}
209		#endif
210
211	609k	if (cb != NULL) {
212	225k	const int align_addr_extra_size = 31;
213	225k	const uint64_t external_frame_size = frame_size + align_addr_extra_size;
214
215	225k	assert(fb != NULL);
216
217	225k	if (external_frame_size != (size_t)external_frame_size) return -1;
218
219		// Allocation to hold larger frame, or first allocation.
220	225k	if (cb(cb_priv, (size_t)external_frame_size, fb) < 0) return -1;
221
222	225k	if (fb->data == NULL \|\| fb->size < external_frame_size) return -1;
223
224	225k	ybf->buffer_alloc = (uint8_t *)yv12_align_addr(fb->data, 32);
225
226	225k	#if defined(__has_feature)
227		#if __has_feature(memory_sanitizer)
228		// This memset is needed for fixing the issue of using uninitialized
229		// value in msan test. It will cause a perf loss, so only do this for
230		// msan test.
231		memset(ybf->buffer_alloc, 0, (size_t)frame_size);
232		#endif
233	225k	#endif
234	384k	} else if (frame_size > ybf->buffer_alloc_sz) {
235		// Allocation to hold larger frame, or first allocation.
236	125k	vpx_free(ybf->buffer_alloc);
237	125k	ybf->buffer_alloc = NULL;
238	125k	ybf->buffer_alloc_sz = 0;
239
240	125k	ybf->buffer_alloc = (uint8_t *)vpx_memalign(32, (size_t)frame_size);
241	125k	if (!ybf->buffer_alloc) return -1;
242
243	125k	ybf->buffer_alloc_sz = (size_t)frame_size;
244
245		// This memset is needed for fixing valgrind error from C loop filter
246		// due to access uninitialized memory in frame border. It could be
247		// removed if border is totally removed.
248	125k	memset(ybf->buffer_alloc, 0, ybf->buffer_alloc_sz);
249	125k	}
250
251	609k	ybf->y_crop_width = width;
252	609k	ybf->y_crop_height = height;
253	609k	ybf->y_width = aligned_width;
254	609k	ybf->y_height = aligned_height;
255	609k	ybf->y_stride = y_stride;
256
257	609k	ybf->uv_crop_width = (width + ss_x) >> ss_x;
258	609k	ybf->uv_crop_height = (height + ss_y) >> ss_y;
259	609k	ybf->uv_width = uv_width;
260	609k	ybf->uv_height = uv_height;
261	609k	ybf->uv_stride = uv_stride;
262
263	609k	ybf->border = border;
264	609k	ybf->frame_size = (size_t)frame_size;
265	609k	ybf->subsampling_x = ss_x;
266	609k	ybf->subsampling_y = ss_y;
267
268	609k	buf = ybf->buffer_alloc;
269	609k	#if CONFIG_VP9_HIGHBITDEPTH
270	609k	if (use_highbitdepth) {
271		// Store uint16 addresses when using 16bit framebuffers
272	130k	buf = CONVERT_TO_BYTEPTR(ybf->buffer_alloc);
273	130k	ybf->flags = YV12_FLAG_HIGHBITDEPTH;
274	479k	} else {
275	479k	ybf->flags = 0;
276	479k	}
277	609k	#endif // CONFIG_VP9_HIGHBITDEPTH
278
279	609k	ybf->y_buffer = (uint8_t *)yv12_align_addr(
280	609k	buf + (border * y_stride) + border, vp9_byte_align);
281	609k	ybf->u_buffer = (uint8_t *)yv12_align_addr(
282	609k	buf + yplane_size + (uv_border_h * uv_stride) + uv_border_w,
283	609k	vp9_byte_align);
284	609k	ybf->v_buffer =
285	609k	(uint8_t *)yv12_align_addr(buf + yplane_size + uvplane_size +
286	609k	(uv_border_h * uv_stride) + uv_border_w,
287	609k	vp9_byte_align);
288
289	609k	ybf->corrupted = 0; /* assume not corrupted by errors */
290	609k	return 0;
291	609k	}
292	0	return -2;
293	610k	}
294
295		int vpx_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width, int height,
296		int ss_x, int ss_y,
297		#if CONFIG_VP9_HIGHBITDEPTH
298		int use_highbitdepth,
299		#endif
300	100k	int border, int byte_alignment) {
301	100k	if (ybf) {
302	100k	vpx_free_frame_buffer(ybf);
303	100k	return vpx_realloc_frame_buffer(ybf, width, height, ss_x, ss_y,
304	100k	#if CONFIG_VP9_HIGHBITDEPTH
305	100k	use_highbitdepth,
306	100k	#endif
307	100k	border, byte_alignment, NULL, NULL, NULL);
308	100k	}
309	0	return -2;
310	100k	}
311		#endif