Coverage Report

Created: 2025-06-13 07:07

/src/aom/aom_scale/generic/yv12config.c
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Source (jump to first uncovered line)
1
/*
2
 * Copyright (c) 2016, Alliance for Open Media. All rights reserved.
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 *
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 * This source code is subject to the terms of the BSD 2 Clause License and
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 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
6
 * was not distributed with this source code in the LICENSE file, you can
7
 * obtain it at www.aomedia.org/license/software. If the Alliance for Open
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 * Media Patent License 1.0 was not distributed with this source code in the
9
 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
10
 */
11
12
#include <assert.h>
13
14
#include "config/aom_config.h"
15
16
#include "aom/aom_image.h"
17
#include "aom/internal/aom_image_internal.h"
18
#include "aom_dsp/flow_estimation/corner_detect.h"
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#include "aom_dsp/pyramid.h"
20
#include "aom_mem/aom_mem.h"
21
#include "aom_ports/mem.h"
22
#include "aom_scale/yv12config.h"
23
#include "av1/common/enums.h"
24
25
/****************************************************************************
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 *  Exports
27
 ****************************************************************************/
28
29
/****************************************************************************
30
 *
31
 ****************************************************************************/
32
33
// TODO(jkoleszar): Maybe replace this with struct aom_image
34
310k
int aom_free_frame_buffer(YV12_BUFFER_CONFIG *ybf) {
35
310k
  if (ybf) {
36
310k
    if (ybf->buffer_alloc_sz > 0) {
37
12.9k
      aom_free(ybf->buffer_alloc);
38
12.9k
    }
39
#if CONFIG_AV1_ENCODER && !CONFIG_REALTIME_ONLY
40
    if (ybf->y_pyramid) {
41
      aom_free_pyramid(ybf->y_pyramid);
42
    }
43
    if (ybf->corners) {
44
      av1_free_corner_list(ybf->corners);
45
    }
46
#endif  // CONFIG_AV1_ENCODER && !CONFIG_REALTIME_ONLY
47
310k
    aom_remove_metadata_from_frame_buffer(ybf);
48
    /* buffer_alloc isn't accessed by most functions.  Rather y_buffer,
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      u_buffer and v_buffer point to buffer_alloc and are used.  Clear out
50
      all of this so that a freed pointer isn't inadvertently used */
51
310k
    memset(ybf, 0, sizeof(YV12_BUFFER_CONFIG));
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310k
    return 0;
53
310k
  }
54
55
0
  return AOM_CODEC_MEM_ERROR;
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310k
}
57
58
static int realloc_frame_buffer_aligned(
59
    YV12_BUFFER_CONFIG *ybf, int width, int height, int ss_x, int ss_y,
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    int use_highbitdepth, int border, int byte_alignment,
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    aom_codec_frame_buffer_t *fb, aom_get_frame_buffer_cb_fn_t cb,
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    void *cb_priv, const int y_stride, const uint64_t yplane_size,
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    const uint64_t uvplane_size, const int aligned_width,
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    const int aligned_height, const int uv_width, const int uv_height,
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    const int uv_stride, const int uv_border_w, const int uv_border_h,
66
516k
    bool alloc_pyramid, int alloc_y_plane_only) {
67
516k
  if (ybf) {
68
516k
    const int aom_byte_align = (byte_alignment == 0) ? 1 : byte_alignment;
69
516k
    const uint64_t frame_size =
70
516k
        (1 + use_highbitdepth) * (yplane_size + 2 * uvplane_size);
71
72
516k
    uint8_t *buf = NULL;
73
74
516k
#if CONFIG_REALTIME_ONLY || !CONFIG_AV1_ENCODER
75
    // We should only need an 8-bit version of the source frame if we are
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    // encoding in non-realtime mode
77
516k
    (void)alloc_pyramid;
78
516k
    assert(!alloc_pyramid);
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516k
#endif  // CONFIG_REALTIME_ONLY || !CONFIG_AV1_ENCODER
80
81
516k
#if defined AOM_MAX_ALLOCABLE_MEMORY
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    // The size of ybf->buffer_alloc.
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516k
    uint64_t alloc_size = frame_size;
84
#if CONFIG_AV1_ENCODER && !CONFIG_REALTIME_ONLY
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    // The size of ybf->y_pyramid
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    if (alloc_pyramid) {
87
      alloc_size += aom_get_pyramid_alloc_size(width, height, use_highbitdepth);
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      alloc_size += av1_get_corner_list_size();
89
    }
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#endif  // CONFIG_AV1_ENCODER && !CONFIG_REALTIME_ONLY
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    // The decoder may allocate REF_FRAMES frame buffers in the frame buffer
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    // pool. Bound the total amount of allocated memory as if these REF_FRAMES
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    // frame buffers were allocated in a single allocation.
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516k
    if (alloc_size > AOM_MAX_ALLOCABLE_MEMORY / REF_FRAMES)
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596
      return AOM_CODEC_MEM_ERROR;
96
516k
#endif
97
98
516k
    if (cb != NULL) {
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483k
      const int align_addr_extra_size = 31;
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483k
      const uint64_t external_frame_size = frame_size + align_addr_extra_size;
101
102
483k
      assert(fb != NULL);
103
104
483k
      if (external_frame_size != (size_t)external_frame_size)
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0
        return AOM_CODEC_MEM_ERROR;
106
107
      // Allocation to hold larger frame, or first allocation.
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483k
      if (cb(cb_priv, (size_t)external_frame_size, fb) < 0)
109
0
        return AOM_CODEC_MEM_ERROR;
110
111
483k
      if (fb->data == NULL || fb->size < external_frame_size)
112
0
        return AOM_CODEC_MEM_ERROR;
113
114
483k
      ybf->buffer_alloc = (uint8_t *)aom_align_addr(fb->data, 32);
115
116
483k
#if defined(__has_feature)
117
#if __has_feature(memory_sanitizer)
118
      // This memset is needed for fixing the issue of using uninitialized
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      // value in msan test. It will cause a perf loss, so only do this for
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      // msan test.
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      memset(ybf->buffer_alloc, 0, (size_t)frame_size);
122
#endif
123
483k
#endif
124
483k
    } else if (frame_size > ybf->buffer_alloc_sz) {
125
      // Allocation to hold larger frame, or first allocation.
126
13.3k
      aom_free(ybf->buffer_alloc);
127
13.3k
      ybf->buffer_alloc = NULL;
128
13.3k
      ybf->buffer_alloc_sz = 0;
129
130
13.3k
      if (frame_size != (size_t)frame_size) return AOM_CODEC_MEM_ERROR;
131
132
13.3k
      ybf->buffer_alloc = (uint8_t *)aom_memalign(32, (size_t)frame_size);
133
13.3k
      if (!ybf->buffer_alloc) return AOM_CODEC_MEM_ERROR;
134
135
13.3k
      ybf->buffer_alloc_sz = (size_t)frame_size;
136
137
      // This memset is needed for fixing valgrind error from C loop filter
138
      // due to access uninitialized memory in frame border. It could be
139
      // removed if border is totally removed.
140
13.3k
      memset(ybf->buffer_alloc, 0, ybf->buffer_alloc_sz);
141
13.3k
    }
142
143
516k
    ybf->y_crop_width = width;
144
516k
    ybf->y_crop_height = height;
145
516k
    ybf->y_width = aligned_width;
146
516k
    ybf->y_height = aligned_height;
147
516k
    ybf->y_stride = y_stride;
148
149
516k
    ybf->uv_crop_width = (width + ss_x) >> ss_x;
150
516k
    ybf->uv_crop_height = (height + ss_y) >> ss_y;
151
516k
    ybf->uv_width = uv_width;
152
516k
    ybf->uv_height = uv_height;
153
516k
    ybf->uv_stride = uv_stride;
154
155
516k
    ybf->border = border;
156
516k
    ybf->frame_size = (size_t)frame_size;
157
516k
    ybf->subsampling_x = ss_x;
158
516k
    ybf->subsampling_y = ss_y;
159
160
516k
    buf = ybf->buffer_alloc;
161
516k
    if (use_highbitdepth) {
162
      // Store uint16 addresses when using 16bit framebuffers
163
208k
      buf = CONVERT_TO_BYTEPTR(ybf->buffer_alloc);
164
208k
      ybf->flags = YV12_FLAG_HIGHBITDEPTH;
165
307k
    } else {
166
307k
      ybf->flags = 0;
167
307k
    }
168
169
516k
    ybf->y_buffer = (uint8_t *)aom_align_addr(
170
516k
        buf + (border * y_stride) + border, aom_byte_align);
171
516k
    if (!alloc_y_plane_only) {
172
516k
      ybf->u_buffer = (uint8_t *)aom_align_addr(
173
516k
          buf + yplane_size + (uv_border_h * uv_stride) + uv_border_w,
174
516k
          aom_byte_align);
175
516k
      ybf->v_buffer =
176
516k
          (uint8_t *)aom_align_addr(buf + yplane_size + uvplane_size +
177
516k
                                        (uv_border_h * uv_stride) + uv_border_w,
178
516k
                                    aom_byte_align);
179
516k
    } else {
180
0
      ybf->u_buffer = NULL;
181
0
      ybf->v_buffer = NULL;
182
0
    }
183
184
516k
    ybf->use_external_reference_buffers = 0;
185
186
#if CONFIG_AV1_ENCODER && !CONFIG_REALTIME_ONLY
187
    if (ybf->y_pyramid) {
188
      aom_free_pyramid(ybf->y_pyramid);
189
      ybf->y_pyramid = NULL;
190
    }
191
    if (ybf->corners) {
192
      av1_free_corner_list(ybf->corners);
193
      ybf->corners = NULL;
194
    }
195
    if (alloc_pyramid) {
196
      ybf->y_pyramid = aom_alloc_pyramid(width, height, use_highbitdepth);
197
      if (!ybf->y_pyramid) return AOM_CODEC_MEM_ERROR;
198
      ybf->corners = av1_alloc_corner_list();
199
      if (!ybf->corners) return AOM_CODEC_MEM_ERROR;
200
    }
201
#endif  // CONFIG_AV1_ENCODER && !CONFIG_REALTIME_ONLY
202
203
516k
    ybf->corrupted = 0; /* assume not corrupted by errors */
204
516k
    return 0;
205
516k
  }
206
0
  return AOM_CODEC_MEM_ERROR;
207
516k
}
208
209
static int calc_stride_and_planesize(
210
    const int ss_x, const int ss_y, const int aligned_width,
211
    const int aligned_height, const int border, const int byte_alignment,
212
    int alloc_y_plane_only, int *y_stride, int *uv_stride,
213
516k
    uint64_t *yplane_size, uint64_t *uvplane_size, const int uv_height) {
214
  /* Only support allocating buffers that have a border that's a multiple
215
   * of 32. The border restriction is required to get 16-byte alignment of
216
   * the start of the chroma rows without introducing an arbitrary gap
217
   * between planes, which would break the semantics of things like
218
   * aom_img_set_rect(). */
219
516k
  if (border & 0x1f) return AOM_CODEC_MEM_ERROR;
220
516k
  *y_stride = aom_calc_y_stride(aligned_width, border);
221
516k
  *yplane_size =
222
516k
      (aligned_height + 2 * border) * (uint64_t)(*y_stride) + byte_alignment;
223
224
516k
  if (!alloc_y_plane_only) {
225
516k
    *uv_stride = *y_stride >> ss_x;
226
516k
    *uvplane_size =
227
516k
        (uv_height + 2 * (border >> ss_y)) * (uint64_t)(*uv_stride) +
228
516k
        byte_alignment;
229
516k
  } else {
230
0
    *uv_stride = 0;
231
0
    *uvplane_size = 0;
232
0
  }
233
516k
  return 0;
234
516k
}
235
236
int aom_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width, int height,
237
                             int ss_x, int ss_y, int use_highbitdepth,
238
                             int border, int byte_alignment,
239
                             aom_codec_frame_buffer_t *fb,
240
                             aom_get_frame_buffer_cb_fn_t cb, void *cb_priv,
241
516k
                             bool alloc_pyramid, int alloc_y_plane_only) {
242
516k
  if (ybf) {
243
516k
    int y_stride = 0;
244
516k
    int uv_stride = 0;
245
516k
    uint64_t yplane_size = 0;
246
516k
    uint64_t uvplane_size = 0;
247
516k
    const int aligned_width = (width + 7) & ~7;
248
516k
    const int aligned_height = (height + 7) & ~7;
249
516k
    const int uv_width = aligned_width >> ss_x;
250
516k
    const int uv_height = aligned_height >> ss_y;
251
516k
    const int uv_border_w = border >> ss_x;
252
516k
    const int uv_border_h = border >> ss_y;
253
254
516k
    int error = calc_stride_and_planesize(
255
516k
        ss_x, ss_y, aligned_width, aligned_height, border, byte_alignment,
256
516k
        alloc_y_plane_only, &y_stride, &uv_stride, &yplane_size, &uvplane_size,
257
516k
        uv_height);
258
516k
    if (error) return error;
259
516k
    return realloc_frame_buffer_aligned(
260
516k
        ybf, width, height, ss_x, ss_y, use_highbitdepth, border,
261
516k
        byte_alignment, fb, cb, cb_priv, y_stride, yplane_size, uvplane_size,
262
516k
        aligned_width, aligned_height, uv_width, uv_height, uv_stride,
263
516k
        uv_border_w, uv_border_h, alloc_pyramid, alloc_y_plane_only);
264
516k
  }
265
0
  return AOM_CODEC_MEM_ERROR;
266
516k
}
267
268
int aom_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width, int height,
269
                           int ss_x, int ss_y, int use_highbitdepth, int border,
270
                           int byte_alignment, bool alloc_pyramid,
271
10.4k
                           int alloc_y_plane_only) {
272
10.4k
  if (ybf) {
273
10.4k
    aom_free_frame_buffer(ybf);
274
10.4k
    return aom_realloc_frame_buffer(
275
10.4k
        ybf, width, height, ss_x, ss_y, use_highbitdepth, border,
276
10.4k
        byte_alignment, NULL, NULL, NULL, alloc_pyramid, alloc_y_plane_only);
277
10.4k
  }
278
0
  return AOM_CODEC_MEM_ERROR;
279
10.4k
}
280
281
310k
void aom_remove_metadata_from_frame_buffer(YV12_BUFFER_CONFIG *ybf) {
282
310k
  if (ybf && ybf->metadata) {
283
0
    aom_img_metadata_array_free(ybf->metadata);
284
0
    ybf->metadata = NULL;
285
0
  }
286
310k
}
287
288
int aom_copy_metadata_to_frame_buffer(YV12_BUFFER_CONFIG *ybf,
289
0
                                      const aom_metadata_array_t *arr) {
290
0
  if (!ybf || !arr || !arr->metadata_array) return -1;
291
0
  if (ybf->metadata == arr) return 0;
292
0
  aom_remove_metadata_from_frame_buffer(ybf);
293
0
  ybf->metadata = aom_img_metadata_array_alloc(arr->sz);
294
0
  if (!ybf->metadata) return -1;
295
0
  for (size_t i = 0; i < ybf->metadata->sz; i++) {
296
0
    ybf->metadata->metadata_array[i] = aom_img_metadata_alloc(
297
0
        arr->metadata_array[i]->type, arr->metadata_array[i]->payload,
298
0
        arr->metadata_array[i]->sz, arr->metadata_array[i]->insert_flag);
299
0
    if (ybf->metadata->metadata_array[i] == NULL) {
300
0
      aom_img_metadata_array_free(ybf->metadata);
301
0
      ybf->metadata = NULL;
302
0
      return -1;
303
0
    }
304
0
  }
305
0
  ybf->metadata->sz = arr->sz;
306
0
  return 0;
307
0
}