1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 /** 18 * @addtogroup Media 19 * @{ 20 */ 21 22 /** 23 * @file NdkImageReader.h 24 */ 25 26 /* 27 * This file defines an NDK API. 28 * Do not remove methods. 29 * Do not change method signatures. 30 * Do not change the value of constants. 31 * Do not change the size of any of the classes defined in here. 32 * Do not reference types that are not part of the NDK. 33 * Do not #include files that aren't part of the NDK. 34 */ 35 36 #ifndef _NDK_IMAGE_READER_H 37 #define _NDK_IMAGE_READER_H 38 39 #include <sys/cdefs.h> 40 #ifdef __ANDROID_VNDK__ 41 #include <cutils/native_handle.h> 42 #endif 43 44 #include <android/native_window.h> 45 #include "NdkMediaError.h" 46 #include "NdkImage.h" 47 48 __BEGIN_DECLS 49 50 /** 51 * AImage is an opaque type that allows direct application access to image data rendered into a 52 * {@link ANativeWindow}. 53 */ 54 typedef struct AImageReader AImageReader; 55 56 #if __ANDROID_API__ >= 24 57 58 /** 59 * Create a new reader for images of the desired size and format. 60 * 61 * <p> 62 * The maxImages parameter determines the maximum number of {@link AImage} objects that can be 63 * acquired from the {@link AImageReader} simultaneously. Requesting more buffers will use up 64 * more memory, so it is important to use only the minimum number necessary for the use case. 65 * </p> 66 * <p> 67 * The valid sizes and formats depend on the source of the image data. 68 * </p> 69 * 70 * Available since API level 24. 71 * 72 * @param width The default width in pixels of the Images that this reader will produce. 73 * @param height The default height in pixels of the Images that this reader will produce. 74 * @param format The format of the Image that this reader will produce. This must be one of the 75 * AIMAGE_FORMAT_* enum value defined in {@link AIMAGE_FORMATS}. Note that not all 76 * formats are supported. One example is {@link AIMAGE_FORMAT_PRIVATE}, as it is not 77 * intended to be read by applications directly. That format is supported by 78 * {@link AImageReader_newWithUsage} introduced in API 26. 79 * @param maxImages The maximum number of images the user will want to access simultaneously. This 80 * should be as small as possible to limit memory use. Once maxImages Images are obtained 81 * by the user, one of them has to be released before a new {@link AImage} will become 82 * available for access through {@link AImageReader_acquireLatestImage} or 83 * {@link AImageReader_acquireNextImage}. Must be greater than 0. 84 * @param reader The created image reader will be filled here if the method call succeeeds. 85 * 86 * @return <ul> 87 * <li>{@link AMEDIA_OK} if the method call succeeds.</li> 88 * <li>{@link AMEDIA_ERROR_INVALID_PARAMETER} if reader is NULL, or one or more of width, 89 * height, format, maxImages arguments is not supported.</li> 90 * <li>{@link AMEDIA_ERROR_UNKNOWN} if the method fails for some other reasons.</li></ul> 91 * 92 * @see AImage 93 */ 94 media_status_t AImageReader_new( 95 int32_t width, int32_t height, int32_t format, int32_t maxImages, 96 /*out*/AImageReader** reader) __INTRODUCED_IN(24); 97 98 /** 99 * Delete an {@link AImageReader} and return all images generated by this reader to system. 100 * 101 * <p>This method will return all {@link AImage} objects acquired by this reader (via 102 * {@link AImageReader_acquireNextImage} or {@link AImageReader_acquireLatestImage}) to system, 103 * making any of data pointers obtained from {@link AImage_getPlaneData} invalid. Do NOT access 104 * the reader object or any of those data pointers after this method returns.</p> 105 * 106 * Available since API level 24. 107 * 108 * @param reader The image reader to be deleted. 109 */ 110 void AImageReader_delete(AImageReader* reader) __INTRODUCED_IN(24); 111 112 /** 113 * Get a {@link ANativeWindow} that can be used to produce {@link AImage} for this image reader. 114 * 115 * Available since API level 24. 116 * 117 * @param reader The image reader of interest. 118 * @param window The output {@link ANativeWindow} will be filled here if the method call succeeds. 119 * The {@link ANativeWindow} is managed by this image reader. Do NOT call 120 * {@link ANativeWindow_release} on it. Instead, use {@link AImageReader_delete}. 121 * 122 * @return <ul> 123 * <li>{@link AMEDIA_OK} if the method call succeeds.</li> 124 * <li>{@link AMEDIA_ERROR_INVALID_PARAMETER} if reader or window is NULL.</li></ul> 125 */ 126 media_status_t AImageReader_getWindow(AImageReader* reader, /*out*/ANativeWindow** window) __INTRODUCED_IN(24); 127 128 /** 129 * Query the default width of the {@link AImage} generated by this reader, in pixels. 130 * 131 * <p>The width may be overridden by the producer sending buffers to this reader's 132 * {@link ANativeWindow}. If so, the actual width of the images can be found using 133 * {@link AImage_getWidth}.</p> 134 * 135 * Available since API level 24. 136 * 137 * @param reader The image reader of interest. 138 * @param width the default width of the reader will be filled here if the method call succeeeds. 139 * 140 * @return <ul> 141 * <li>{@link AMEDIA_OK} if the method call succeeds.</li> 142 * <li>{@link AMEDIA_ERROR_INVALID_PARAMETER} if reader or width is NULL.</li></ul> 143 */ 144 media_status_t AImageReader_getWidth(const AImageReader* reader, /*out*/int32_t* width) __INTRODUCED_IN(24); 145 146 /** 147 * Query the default height of the {@link AImage} generated by this reader, in pixels. 148 * 149 * <p>The height may be overridden by the producer sending buffers to this reader's 150 * {@link ANativeWindow}. If so, the actual height of the images can be found using 151 * {@link AImage_getHeight}.</p> 152 * 153 * Available since API level 24. 154 * 155 * @param reader The image reader of interest. 156 * @param height the default height of the reader will be filled here if the method call succeeeds. 157 * 158 * @return <ul> 159 * <li>{@link AMEDIA_OK} if the method call succeeds.</li> 160 * <li>{@link AMEDIA_ERROR_INVALID_PARAMETER} if reader or height is NULL.</li></ul> 161 */ 162 media_status_t AImageReader_getHeight(const AImageReader* reader, /*out*/int32_t* height) __INTRODUCED_IN(24); 163 164 /** 165 * Query the format of the {@link AImage} generated by this reader. 166 * 167 * Available since API level 24. 168 * 169 * @param reader The image reader of interest. 170 * @param format the fromat of the reader will be filled here if the method call succeeeds. The 171 * value will be one of the AIMAGE_FORMAT_* enum value defiend in {@link NdkImage.h}. 172 * 173 * @return <ul> 174 * <li>{@link AMEDIA_OK} if the method call succeeds.</li> 175 * <li>{@link AMEDIA_ERROR_INVALID_PARAMETER} if reader or format is NULL.</li></ul> 176 */ 177 media_status_t AImageReader_getFormat(const AImageReader* reader, /*out*/int32_t* format) __INTRODUCED_IN(24); 178 179 /** 180 * Query the maximum number of concurrently acquired {@link AImage}s of this reader. 181 * 182 * Available since API level 24. 183 * 184 * @param reader The image reader of interest. 185 * @param maxImages the maximum number of concurrently acquired images of the reader will be filled 186 * here if the method call succeeeds. 187 * 188 * @return <ul> 189 * <li>{@link AMEDIA_OK} if the method call succeeds.</li> 190 * <li>{@link AMEDIA_ERROR_INVALID_PARAMETER} if reader or maxImages is NULL.</li></ul> 191 */ 192 media_status_t AImageReader_getMaxImages(const AImageReader* reader, /*out*/int32_t* maxImages) __INTRODUCED_IN(24); 193 194 /** 195 * Acquire the next {@link AImage} from the image reader's queue. 196 * 197 * <p>Warning: Consider using {@link AImageReader_acquireLatestImage} instead, as it will 198 * automatically release older images, and allow slower-running processing routines to catch 199 * up to the newest frame. Usage of {@link AImageReader_acquireNextImage} is recommended for 200 * batch/background processing. Incorrectly using this method can cause images to appear 201 * with an ever-increasing delay, followed by a complete stall where no new images seem to appear. 202 * </p> 203 * 204 * <p> 205 * This method will fail if {@link AImageReader_getMaxImages maxImages} have been acquired with 206 * {@link AImageReader_acquireNextImage} or {@link AImageReader_acquireLatestImage}. In particular 207 * a sequence of {@link AImageReader_acquireNextImage} or {@link AImageReader_acquireLatestImage} 208 * calls greater than {@link AImageReader_getMaxImages maxImages} without calling 209 * {@link AImage_delete} in-between will exhaust the underlying queue. At such a time, 210 * {@link AMEDIA_IMGREADER_MAX_IMAGES_ACQUIRED} will be returned until more images are released with 211 * {@link AImage_delete}. 212 * </p> 213 * 214 * Available since API level 24. 215 * 216 * @param reader The image reader of interest. 217 * @param image the acquired {@link AImage} will be filled here if the method call succeeeds. 218 * 219 * @return <ul> 220 * <li>{@link AMEDIA_OK} if the method call succeeds.</li> 221 * <li>{@link AMEDIA_ERROR_INVALID_PARAMETER} if reader or image is NULL.</li> 222 * <li>{@link AMEDIA_IMGREADER_MAX_IMAGES_ACQUIRED} if the number of concurrently acquired 223 * images has reached the limit.</li> 224 * <li>{@link AMEDIA_IMGREADER_NO_BUFFER_AVAILABLE} if there is no buffers currently 225 * available in the reader queue.</li> 226 * <li>{@link AMEDIA_ERROR_UNKNOWN} if the method fails for some other reasons.</li></ul> 227 * 228 * @see AImageReader_acquireLatestImage 229 */ 230 media_status_t AImageReader_acquireNextImage(AImageReader* reader, /*out*/AImage** image) __INTRODUCED_IN(24); 231 232 /** 233 * Acquire the latest {@link AImage} from the image reader's queue, dropping older images. 234 * 235 * <p> 236 * This operation will acquire all the images possible from the image reader, but 237 * {@link AImage_delete} all images that aren't the latest. This function is recommended to use over 238 * {@link AImageReader_acquireNextImage} for most use-cases, as it's more suited for real-time 239 * processing. 240 * </p> 241 * <p> 242 * Note that {@link AImageReader_getMaxImages maxImages} should be at least 2 for 243 * {@link AImageReader_acquireLatestImage} to be any different than 244 * {@link AImageReader_acquireNextImage} - discarding all-but-the-newest {@link AImage} requires 245 * temporarily acquiring two {@link AImage}s at once. Or more generally, calling 246 * {@link AImageReader_acquireLatestImage} with less than two images of margin, that is 247 * (maxImages - currentAcquiredImages < 2) will not discard as expected. 248 * </p> 249 * <p> 250 * This method will fail if {@link AImageReader_getMaxImages maxImages} have been acquired with 251 * {@link AImageReader_acquireNextImage} or {@link AImageReader_acquireLatestImage}. In particular 252 * a sequence of {@link AImageReader_acquireNextImage} or {@link AImageReader_acquireLatestImage} 253 * calls greater than {@link AImageReader_getMaxImages maxImages} without calling 254 * {@link AImage_delete} in-between will exhaust the underlying queue. At such a time, 255 * {@link AMEDIA_IMGREADER_MAX_IMAGES_ACQUIRED} will be returned until more images are released with 256 * {@link AImage_delete}. 257 * </p> 258 * 259 * Available since API level 24. 260 * 261 * @param reader The image reader of interest. 262 * @param image the acquired {@link AImage} will be filled here if the method call succeeeds. 263 * 264 * @return <ul> 265 * <li>{@link AMEDIA_OK} if the method call succeeds.</li> 266 * <li>{@link AMEDIA_ERROR_INVALID_PARAMETER} if reader or image is NULL.</li> 267 * <li>{@link AMEDIA_IMGREADER_MAX_IMAGES_ACQUIRED} if the number of concurrently acquired 268 * images has reached the limit.</li> 269 * <li>{@link AMEDIA_IMGREADER_NO_BUFFER_AVAILABLE} if there is no buffers currently 270 * available in the reader queue.</li> 271 * <li>{@link AMEDIA_ERROR_UNKNOWN} if the method fails for some other reasons.</li></ul> 272 * 273 * @see AImageReader_acquireNextImage 274 */ 275 media_status_t AImageReader_acquireLatestImage(AImageReader* reader, /*out*/AImage** image) __INTRODUCED_IN(24); 276 277 278 /** 279 * Signature of the callback which is called when a new image is available from {@link AImageReader}. 280 * 281 * @param context The optional application context provided by user in 282 * {@link AImageReader_setImageListener}. 283 * @param session The camera capture session whose state is changing. 284 */ 285 typedef void (*AImageReader_ImageCallback)(void* context, AImageReader* reader); 286 287 typedef struct AImageReader_ImageListener { 288 /// Optional application context passed as the first parameter of the callback. 289 void* context; 290 291 /** 292 * This callback is called when there is a new image available in the image reader's queue. 293 * 294 * <p>The callback happens on one dedicated thread per {@link AImageReader} instance. It is okay 295 * to use AImageReader_* and AImage_* methods within the callback. Note that it is possible that 296 * calling {@link AImageReader_acquireNextImage} or {@link AImageReader_acquireLatestImage} 297 * returns {@link AMEDIA_IMGREADER_NO_BUFFER_AVAILABLE} within this callback. For example, when 298 * there are multiple images and callbacks queued, if application called 299 * {@link AImageReader_acquireLatestImage}, some images will be returned to system before their 300 * corresponding callback is executed.</p> 301 */ 302 AImageReader_ImageCallback onImageAvailable; 303 } AImageReader_ImageListener; 304 305 /** 306 * Set the onImageAvailable listener of this image reader. 307 * 308 * Calling this method will replace previously registered listeners. 309 * 310 * Available since API level 24. 311 * 312 * @param reader The image reader of interest. 313 * @param listener The {@link AImageReader_ImageListener} to be registered. Set this to NULL if 314 * the application no longer needs to listen to new images. 315 * 316 * @return <ul> 317 * <li>{@link AMEDIA_OK} if the method call succeeds.</li> 318 * <li>{@link AMEDIA_ERROR_INVALID_PARAMETER} if reader is NULL.</li></ul> 319 */ 320 media_status_t AImageReader_setImageListener( 321 AImageReader* reader, AImageReader_ImageListener* listener) __INTRODUCED_IN(24); 322 323 #endif /* __ANDROID_API__ >= 24 */ 324 325 #if __ANDROID_API__ >= 26 326 327 /** 328 * AImageReader constructor similar to {@link AImageReader_new} that takes an additional parameter 329 * for the consumer usage. All other parameters and the return values are identical to those passed 330 * to {@link AImageReader_new}. 331 * 332 * <p>If the \c format is {@link AIMAGE_FORMAT_PRIVATE}, the created {@link AImageReader} 333 * will produce images whose contents are not directly accessible by the application. The application can 334 * still acquire images from this {@link AImageReader} and access {@link AHardwareBuffer} via 335 * {@link AImage_getHardwareBuffer()}. The {@link AHardwareBuffer} gained this way can then 336 * be passed back to hardware (such as GPU or hardware encoder if supported) for future processing. 337 * For example, you can obtain an {@link EGLClientBuffer} from the {@link AHardwareBuffer} by using 338 * {@link eglGetNativeClientBufferANDROID} extension and pass that {@link EGLClientBuffer} to {@link 339 * eglCreateImageKHR} to create an {@link EGLImage} resource type, which may then be bound to a 340 * texture via {@link glEGLImageTargetTexture2DOES} on supported devices. This can be useful for 341 * transporting textures that may be shared cross-process.</p> 342 * <p>In general, when software access to image data is not necessary, an {@link AImageReader} 343 * created with {@link AIMAGE_FORMAT_PRIVATE} format is more efficient, compared with {@link 344 * AImageReader}s using other format such as {@link AIMAGE_FORMAT_YUV_420_888}.</p> 345 * 346 * <p>Note that not all format and usage flag combination is supported by the {@link AImageReader}, 347 * especially if \c format is {@link AIMAGE_FORMAT_PRIVATE}, \c usage must not include either 348 * {@link AHARDWAREBUFFER_USAGE_READ_RARELY} or {@link AHARDWAREBUFFER_USAGE_READ_OFTEN}</p> 349 * 350 * @param width The default width in pixels of the Images that this reader will produce. 351 * @param height The default height in pixels of the Images that this reader will produce. 352 * @param format The format of the Image that this reader will produce. This must be one of the 353 * AIMAGE_FORMAT_* enum value defined in {@link AIMAGE_FORMATS}. 354 * @param usage specifies how the consumer will access the AImage, using combination of the 355 * AHARDWAREBUFFER_USAGE flags described in {@link hardware_buffer.h}. 356 * Passing {@link AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN} is equivalent to calling 357 * {@link AImageReader_new} with the same parameters. 358 * 359 * Note that not all format and usage flag combination is supported by the {@link AImageReader}. 360 * Below are the combinations supported by the {@link AImageReader}. 361 * <table> 362 * <tr> 363 * <th>Format</th> 364 * <th>Compatible usage flags</th> 365 * </tr> 366 * <tr> 367 * <td>non-{@link AIMAGE_FORMAT_PRIVATE PRIVATE} formats defined in {@link AImage.h} 368 * </td> 369 * <td>{@link AHARDWAREBUFFER_USAGE_CPU_READ_RARELY} or 370 * {@link AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN}</td> 371 * </tr> 372 * <tr> 373 * <td>{@link AIMAGE_FORMAT_RGBA_8888}</td> 374 * <td>{@link AHARDWAREBUFFER_USAGE_VIDEO_ENCODE} or 375 * {@link AHARDWAREBUFFER_USAGE_GPU_SAMPLED_IMAGE}, or combined</td> 376 * </tr> 377 * </table> 378 * 379 * Available since API level 26. 380 * 381 * @return <ul> 382 * <li>{@link AMEDIA_OK} if the method call succeeds.</li> 383 * <li>{@link AMEDIA_ERROR_INVALID_PARAMETER} if reader is NULL, or one or more of width, 384 * height, format, maxImages, or usage arguments is not supported.</li> 385 * <li>{@link AMEDIA_ERROR_UNKNOWN} if the method fails for some other reasons.</li></ul> 386 * 387 * @see AImage 388 * @see AImageReader_new 389 * @see AHardwareBuffer 390 */ 391 media_status_t AImageReader_newWithUsage( 392 int32_t width, int32_t height, int32_t format, uint64_t usage, int32_t maxImages, 393 /*out*/ AImageReader** reader) __INTRODUCED_IN(26); 394 395 /** 396 * Acquire the next {@link AImage} from the image reader's queue asynchronously. 397 * 398 * <p>AImageReader acquire method similar to {@link AImageReader_acquireNextImage} that takes an 399 * additional parameter for the sync fence. All other parameters and the return values are 400 * identical to those passed to {@link AImageReader_acquireNextImage}.</p> 401 * 402 * Available since API level 26. 403 * 404 * @param acquireFenceFd A sync fence fd defined in {@link sync.h}, which is used to signal when the 405 * buffer is ready to consume. When synchronization fence is not needed, fence will be set 406 * to -1 and the {@link AImage} returned is ready for use immediately. Otherwise, user shall 407 * use syscalls such as \c poll(), \c epoll(), \c select() to wait for the 408 * fence fd to change status before attempting to access the {@link AImage} returned. 409 * 410 * @see sync.h 411 * @see sync_get_fence_info 412 */ 413 media_status_t AImageReader_acquireNextImageAsync( 414 AImageReader* reader, /*out*/AImage** image, /*out*/int* acquireFenceFd) __INTRODUCED_IN(26); 415 416 /** 417 * Acquire the latest {@link AImage} from the image reader's queue asynchronously, dropping older 418 * images. 419 * 420 * <p>AImageReader acquire method similar to {@link AImageReader_acquireLatestImage} that takes an 421 * additional parameter for the sync fence. All other parameters and the return values are 422 * identical to those passed to {@link AImageReader_acquireLatestImage}.</p> 423 * 424 * Available since API level 26. 425 * 426 * @param acquireFenceFd A sync fence fd defined in {@link sync.h}, which is used to signal when the 427 * buffer is ready to consume. When synchronization fence is not needed, fence will be set 428 * to -1 and the {@link AImage} returned is ready for use immediately. Otherwise, user shall 429 * use syscalls such as \c poll(), \c epoll(), \c select() to wait for the 430 * fence fd to change status before attempting to access the {@link AImage} returned. 431 * 432 * @see sync.h 433 * @see sync_get_fence_info 434 */ 435 media_status_t AImageReader_acquireLatestImageAsync( 436 AImageReader* reader, /*out*/AImage** image, /*out*/int* acquireFenceFd) __INTRODUCED_IN(26); 437 438 /** 439 * Signature of the callback which is called when {@link AImageReader} is about to remove a buffer. 440 * 441 * @param context The optional application context provided by user in 442 * {@link AImageReader_setBufferRemovedListener}. 443 * @param reader The {@link AImageReader} of interest. 444 * @param buffer The {@link AHardwareBuffer} that is being removed from this image reader. 445 */ 446 typedef void (*AImageReader_BufferRemovedCallback)(void* context, 447 AImageReader* reader, 448 AHardwareBuffer* buffer); 449 450 typedef struct AImageReader_BufferRemovedListener { 451 /// Optional application context passed as the first parameter of the callback. 452 void* context; 453 454 /** 455 * This callback is called when an old {@link AHardwareBuffer} is about to be removed from the 456 * image reader. 457 * 458 * <p>Note that registering this callback is optional unless the user holds on extra reference 459 * to {@link AHardwareBuffer} returned from {@link AImage_getHardwareBuffer} by calling {@link 460 * AHardwareBuffer_acquire} or creating external graphic objects, such as EglImage, from it.</p> 461 * 462 * <p>If the callback is registered, the {@link AImageReader} will hold on the last of its 463 * references to the {@link AHardwareBuffer} until this callback returns. User can use the 464 * callback to get notified that it becomes the last owner of the buffer. It is up to the user 465 * to decide to either 1) immediately release all of its references to the buffer; or 2) keep 466 * using the buffer and release it in future. Note that, if option 2 if used, user of this API 467 * is responsible to deallocate the buffer properly by calling {@link AHardwareBuffer_release}. 468 * </p> 469 * 470 * @see AHardwareBuffer_release 471 * @see AImage_getHardwareBuffer 472 */ 473 AImageReader_BufferRemovedCallback onBufferRemoved; 474 } AImageReader_BufferRemovedListener; 475 476 /** 477 * Set the onBufferRemoved listener of this image reader. 478 * 479 * <p>Note that calling this method will replace previously registered listeners.</p> 480 * 481 * Available since API level 26. 482 * 483 * @param reader The image reader of interest. 484 * @param listener the {@link AImageReader_BufferRemovedListener} to be registered. Set this to 485 * NULL if application no longer needs to listen to buffer removed events. 486 * 487 * @return <ul> 488 * <li>{@link AMEDIA_OK} if the method call succeeds.</li> 489 * <li>{@link AMEDIA_ERROR_INVALID_PARAMETER} if reader is NULL.</li></ul> 490 * 491 * @see AImage_getHardwareBuffer 492 */ 493 media_status_t AImageReader_setBufferRemovedListener( 494 AImageReader* reader, AImageReader_BufferRemovedListener* listener) __INTRODUCED_IN(26); 495 496 #ifdef __ANDROID_VNDK__ 497 /* 498 * Get the native_handle_t corresponding to the ANativeWindow owned by the 499 * AImageReader provided. 500 * 501 * @param reader The image reader of interest. 502 * @param handle The output native_handle_t. This native handle is owned by 503 * this image reader. 504 * 505 * @return AMEDIA_OK if the method call succeeds. 506 * AMEDIA_ERROR_INVALID_PARAMETER if reader or handle are NULL. 507 * AMEDIA_ERROR_UNKNOWN if some other error is encountered. 508 */ 509 media_status_t AImageReader_getWindowNativeHandle( 510 AImageReader *reader, /* out */native_handle_t **handle); 511 #endif 512 513 #endif /* __ANDROID_API__ >= 26 */ 514 515 __END_DECLS 516 517 #endif //_NDK_IMAGE_READER_H 518 519 /** @} */ 520