1/* 2 * Copyright (C) 2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16#ifndef NATIVE_AVCODEC_VIDEOENCODER_H 17#define NATIVE_AVCODEC_VIDEOENCODER_H 18 19#include <stdint.h> 20#include <stdio.h> 21#include "native_avcodec_base.h" 22 23#ifdef __cplusplus 24extern "C" { 25#endif 26 27/** 28 * @brief When OH_AVCodec needs new input parameter during the running process, the function pointer will be called and 29 * carry an available OH_AVFormat to fill in the new input parameter. This parameter takes effect immediately with the 30 * frame. 31 * 32 * @syscap SystemCapability.Multimedia.Media.VideoEncoder 33 * @param codec OH_AVCodec instance 34 * @param index The index corresponding to the new OH_AVFormat instance 35 * @param parameter Parameter containing the new OH_AVFormat instance 36 * @param userData specified data 37 * @since 12 38 */ 39typedef void (*OH_VideoEncoder_OnNeedInputParameter)(OH_AVCodec *codec, uint32_t index, OH_AVFormat *parameter, 40 void *userData); 41 42/** 43 * @brief Creates a video encoder instance from the mime type, which is recommended in most cases. 44 * @syscap SystemCapability.Multimedia.Media.VideoEncoder 45 * @param mime mime type description string, refer to {@link AVCODEC_MIME_TYPE} 46 * @return Returns a Pointer to an OH_AVCodec instance. 47 * Return nullptr if memory ran out or the mime type is not supported. 48 * @since 9 49 * @version 1.0 50 */ 51OH_AVCodec *OH_VideoEncoder_CreateByMime(const char *mime); 52 53/** 54 * @brief Create a video encoder instance through the video encoder name. The premise of using this interface is to 55 * know the exact name of the encoder. 56 * @syscap SystemCapability.Multimedia.Media.VideoEncoder 57 * @param name Video encoder name 58 * @return Returns a Pointer to an OH_AVCodec instance. 59 * Return nullptr if memory ran out or the encoder name is not supported. 60 * @since 9 61 * @version 1.0 62 */ 63OH_AVCodec *OH_VideoEncoder_CreateByName(const char *name); 64 65/** 66 * @brief Clear the internal resources of the encoder and destroy the encoder instance 67 * @syscap SystemCapability.Multimedia.Media.VideoEncoder 68 * @param codec Pointer to an OH_AVCodec instance 69 * @return Returns AV_ERR_OK if the execution is successful, 70 * otherwise returns a specific error code, refer to {@link OH_AVErrCode}. 71 * {@link AV_ERR_NO_MEMORY}, inner resource has already released. 72 * {@link AV_ERR_INVALID_VAL}, the encoder is nullptr or invalid. 73 * {@link AV_ERR_UNKNOWN}, unknown error. 74 * {@link AV_ERR_SERVICE_DIED}, avcodec service is died. 75 * @since 9 76 * @version 1.0 77 */ 78OH_AVErrCode OH_VideoEncoder_Destroy(OH_AVCodec *codec); 79 80/** 81 * @brief Set the asynchronous callback function so that your application can respond to the events generated by the 82 * video encoder. This interface must be called before Prepare is called. 83 * @syscap SystemCapability.Multimedia.Media.VideoEncoder 84 * @param codec Pointer to an OH_AVCodec instance 85 * @param callback A collection of all callback functions, see {@link OH_AVCodecAsyncCallback} 86 * @param userData User specific data 87 * @return Returns AV_ERR_OK if the execution is successful, 88 * otherwise returns a specific error code, refer to {@link OH_AVErrCode}. 89 * {@link AV_ERR_NO_MEMORY}, inner resource has already released. 90 * {@link AV_ERR_INVALID_VAL}, the encoder is nullptr or invalid. 91 * {@link AV_ERR_UNKNOWN}, unknown error. 92 * {@link AV_ERR_SERVICE_DIED}, avcodec service is died. 93 * {@link AV_ERR_INVALID_STATE}, this interface was called in invalid state, must be called before Prepare. 94 * @deprecated since 11 95 * @useinstead OH_VideoEncoder_RegisterCallback 96 * @since 9 97 * @version 1.0 98 */ 99OH_AVErrCode OH_VideoEncoder_SetCallback(OH_AVCodec *codec, OH_AVCodecAsyncCallback callback, void *userData); 100 101/** 102 * @brief Set the asynchronous callback function so that your application can respond to the events generated by the 103 * video encoder. This interface must be called before Prepare is called. 104 * @syscap SystemCapability.Multimedia.Media.VideoEncoder 105 * @param codec Pointer to an OH_AVCodec instance 106 * @param callback A collection of all callback functions, see {@link OH_AVCodecCallback} 107 * @param userData User specific data 108 * @return Returns AV_ERR_OK if the execution is successful, 109 * otherwise returns a specific error code, refer to {@link OH_AVErrCode}. 110 * {@link AV_ERR_NO_MEMORY}, inner resource has already released. 111 * {@link AV_ERR_INVALID_VAL}, the encoder is nullptr or invalid. 112 * {@link AV_ERR_UNKNOWN}, unknown error. 113 * {@link AV_ERR_SERVICE_DIED}, avcodec service is died. 114 * {@link AV_ERR_INVALID_STATE}, this interface was called in invalid state, must be called before Prepare. 115 * @since 11 116 */ 117OH_AVErrCode OH_VideoEncoder_RegisterCallback(OH_AVCodec *codec, OH_AVCodecCallback callback, void *userData); 118 119/** 120 * @brief Set the asynchronous callback function so that your application can respond to the events generated by the 121 * video encoder. This interface is optional only for input surface. If this interface is used, it must be invoked 122 * before {@link OH_VideoEncoder_Configure}. 123 * 124 * @syscap SystemCapability.Multimedia.Media.VideoEncoder 125 * @param codec Pointer to an OH_AVCodec instance 126 * @param onInputParameter A callback functions, see {@link OH_VideoEncoder_OnNeedInputParameter} 127 * @param userData User specific data 128 * @return Returns AV_ERR_OK if the execution is successful, 129 * otherwise returns a specific error code, refer to {@link OH_AVErrCode}. 130 * {@link AV_ERR_NO_MEMORY}, inner resource has already released. 131 * {@link AV_ERR_INVALID_VAL}, the encoder is nullptr or invalid. 132 * {@link AV_ERR_UNKNOWN}, unknown error. 133 * {@link AV_ERR_SERVICE_DIED}, avcodec service is died. 134 * {@link AV_ERR_INVALID_STATE}, this interface was called in invalid state, must be called before Prepare. 135 * @since 12 136 */ 137OH_AVErrCode OH_VideoEncoder_RegisterParameterCallback(OH_AVCodec *codec, 138 OH_VideoEncoder_OnNeedInputParameter onInputParameter, 139 void *userData); 140 141/** 142 * @brief To configure the video encoder, typically, you need to configure the description information of the 143 * encoded video track. This interface must be called before Prepare is called. 144 * @syscap SystemCapability.Multimedia.Media.VideoEncoder 145 * @param codec Pointer to an OH_AVCodec instance 146 * @param format A pointer to an OH_AVFormat that gives the description of the video track to be encoded 147 * @return Returns AV_ERR_OK if the execution is successful, 148 * otherwise returns a specific error code, refer to {@link OH_AVErrCode}. 149 * {@link AV_ERR_NO_MEMORY}, instance has already released. 150 * {@link AV_ERR_INVALID_VAL}, the encoder is nullptr or invalid. Invalid param in format. 151 * {@link AV_ERR_UNKNOWN}, unknown error. 152 * {@link AV_ERR_SERVICE_DIED}, avcodec service is died. 153 * {@link AV_ERR_INVALID_STATE}, this interface was called in invalid state, must be called before Prepare. 154 * @since 9 155 * @version 1.0 156 */ 157OH_AVErrCode OH_VideoEncoder_Configure(OH_AVCodec *codec, OH_AVFormat *format); 158 159/** 160 * @brief To prepare the internal resources of the encoder, the Configure interface must be called before 161 * calling this interface. 162 * @syscap SystemCapability.Multimedia.Media.VideoEncoder 163 * @param codec Pointer to an OH_AVCodec instance 164 * @return Returns AV_ERR_OK if the execution is successful, 165 * otherwise returns a specific error code, refer to {@link OH_AVErrCode}. 166 * {@link AV_ERR_NO_MEMORY}, instance has already released. 167 * {@link AV_ERR_INVALID_VAL}, the encoder is nullptr or invalid. 168 * {@link AV_ERR_UNKNOWN}, unknown error. 169 * {@link AV_ERR_SERVICE_DIED}, avcodec service is died. 170 * {@link AV_ERR_INVALID_STATE}, this interface was called in invalid state. 171 * @since 9 172 * @version 1.0 173 */ 174OH_AVErrCode OH_VideoEncoder_Prepare(OH_AVCodec *codec); 175 176/** 177 * @brief Start the encoder, this interface must be called after the Prepare is successful. After being 178 * successfully started, the encoder will start reporting NeedInputData events. 179 * @syscap SystemCapability.Multimedia.Media.VideoEncoder 180 * @param codec Pointer to an OH_AVCodec instance 181 * @return Returns AV_ERR_OK if the execution is successful, 182 * otherwise returns a specific error code, refer to {@link OH_AVErrCode}. 183 * {@link AV_ERR_NO_MEMORY}, instance has already released. 184 * {@link AV_ERR_INVALID_VAL}, the encoder is nullptr or invalid. 185 * {@link AV_ERR_UNKNOWN}, unknown error. 186 * {@link AV_ERR_SERVICE_DIED}, avcodec service is died. 187 * {@link AV_ERR_INVALID_STATE}, this interface was called in invalid state. 188 * @since 9 189 * @version 1.0 190 */ 191OH_AVErrCode OH_VideoEncoder_Start(OH_AVCodec *codec); 192 193/** 194 * @brief Stop the encoder. After stopping, you can re-enter the Started state through Start. 195 * @syscap SystemCapability.Multimedia.Media.VideoEncoder 196 * @param codec Pointer to an OH_AVCodec instance 197 * @return Returns AV_ERR_OK if the execution is successful, 198 * otherwise returns a specific error code, refer to {@link OH_AVErrCode}. 199 * {@link AV_ERR_NO_MEMORY}, instance has already released. 200 * {@link AV_ERR_INVALID_VAL}, the encoder is nullptr or invalid. 201 * {@link AV_ERR_UNKNOWN}, unknown error. 202 * {@link AV_ERR_SERVICE_DIED}, avcodec service is died. 203 * {@link AV_ERR_INVALID_STATE}, this interface was called in invalid state. 204 * @since 9 205 * @version 1.0 206 */ 207OH_AVErrCode OH_VideoEncoder_Stop(OH_AVCodec *codec); 208 209/** 210 * @brief Clear the input and output data buffered in the encoder. After this interface is called, all the Buffer 211 * indexes previously reported through the asynchronous callback will be invalidated, make sure not to access the 212 * Buffers corresponding to these indexes. 213 * @syscap SystemCapability.Multimedia.Media.VideoEncoder 214 * @param codec Pointer to an OH_AVCodec instance 215 * @return Returns AV_ERR_OK if the execution is successful, 216 * otherwise returns a specific error code, refer to {@link OH_AVErrCode}. 217 * {@link AV_ERR_NO_MEMORY}, instance has already released. 218 * {@link AV_ERR_INVALID_VAL}, the encoder is nullptr or invalid. 219 * {@link AV_ERR_UNKNOWN}, unknown error. 220 * {@link AV_ERR_SERVICE_DIED}, avcodec service is died. 221 * {@link AV_ERR_INVALID_STATE}, this interface was called in invalid state. 222 * @since 9 223 * @version 1.0 224 */ 225OH_AVErrCode OH_VideoEncoder_Flush(OH_AVCodec *codec); 226 227/** 228 * @brief Reset the encoder. To continue coding, you need to call the Configure interface again to 229 * configure the encoder instance. 230 * @syscap SystemCapability.Multimedia.Media.VideoEncoder 231 * @param codec Pointer to an OH_AVCodec instance 232 * @return Returns AV_ERR_OK if the execution is successful, 233 * otherwise returns a specific error code, refer to {@link OH_AVErrCode}. 234 * {@link AV_ERR_NO_MEMORY}, instance has already released. 235 * {@link AV_ERR_INVALID_VAL}, the encoder is nullptr or invalid. 236 * {@link AV_ERR_UNKNOWN}, unknown error. 237 * {@link AV_ERR_SERVICE_DIED}, avcodec service is died. 238 * {@link AV_ERR_INVALID_STATE}, this interface was called in invalid state. 239 * @since 9 240 * @version 1.0 241 */ 242OH_AVErrCode OH_VideoEncoder_Reset(OH_AVCodec *codec); 243 244/** 245 * @brief Get the description information of the output data of the encoder, refer to {@link OH_AVFormat} for details. 246 * It should be noted that the life cycle of the OH_AVFormat instance pointed to by the return value * needs to 247 * be manually released by the caller. 248 * @syscap SystemCapability.Multimedia.Media.VideoEncoder 249 * @param codec Pointer to an OH_AVCodec instance 250 * @return Returns a pointer to an OH_AVFormat instance. 251 * Return nullptr if the codec is nullptr or invaild. 252 * @since 9 253 * @version 1.0 254 */ 255OH_AVFormat *OH_VideoEncoder_GetOutputDescription(OH_AVCodec *codec); 256 257/** 258 * @brief Set dynamic parameters to the encoder. Note: This interface can only be called after the encoder is started. 259 * At the same time, incorrect parameter settings may cause the encoding to fail. 260 * @syscap SystemCapability.Multimedia.Media.VideoEncoder 261 * @param codec Pointer to an OH_AVCodec instance 262 * @param format OH_AVFormat handle pointer 263 * @return Returns AV_ERR_OK if the execution is successful, 264 * otherwise returns a specific error code, refer to {@link OH_AVErrCode}. 265 * {@link AV_ERR_NO_MEMORY}, instance has already released. 266 * {@link AV_ERR_INVALID_VAL}, the encoder is nullptr or invalid. Invalid param in format. 267 * {@link AV_ERR_UNKNOWN}, unknown error. 268 * {@link AV_ERR_SERVICE_DIED}, avcodec service is died. 269 * {@link AV_ERR_INVALID_STATE}, this interface was called in invalid state. 270 * @since 9 271 * @version 1.0 272 */ 273OH_AVErrCode OH_VideoEncoder_SetParameter(OH_AVCodec *codec, OH_AVFormat *format); 274 275/** 276 * @brief Get the input Surface from the video encoder, this interface must be called before Prepare is called. 277 * @syscap SystemCapability.Multimedia.Media.VideoEncoder 278 * @param codec Pointer to an OH_AVCodec instance 279 * @param window A pointer to a OHNativeWindow instance, see {@link OHNativeWindow}, the application is responsible for 280 * managing the life cycle of the window, call OH_NativeWindow_DestroyNativeWindow() when done. 281 * @return Returns AV_ERR_OK if the execution is successful, 282 * otherwise returns a specific error code, refer to {@link OH_AVErrCode}. 283 * {@link AV_ERR_NO_MEMORY}, inner resource has already released. 284 * {@link AV_ERR_INVALID_VAL}, the encoder is nullptr or invalid. 285 * {@link AV_ERR_UNKNOWN}, unknown error. 286 * {@link AV_ERR_SERVICE_DIED}, avcodec service is died. 287 * {@link AV_ERR_INVALID_STATE}, this interface was called in invalid state. 288 * @since 9 289 * @version 1.0 290 */ 291OH_AVErrCode OH_VideoEncoder_GetSurface(OH_AVCodec *codec, OHNativeWindow **window); 292 293/** 294 * @brief Return the processed output Buffer to the encoder. 295 * @syscap SystemCapability.Multimedia.Media.VideoEncoder 296 * @param codec Pointer to an OH_AVCodec instance 297 * @param index The index value corresponding to the output Buffer 298 * @return Returns AV_ERR_OK if the execution is successful, 299 * otherwise returns a specific error code, refer to {@link OH_AVErrCode}. 300 * {@link AV_ERR_NO_MEMORY}, instance has already released. 301 * {@link AV_ERR_INVALID_VAL}, the encoder is nullptr or invalid. 302 * Buffer index should be given by {@link OH_AVCodecOnNewOutputData}. 303 * {@link AV_ERR_UNKNOWN}, unknown error. 304 * {@link AV_ERR_SERVICE_DIED}, avcodec service is died. 305 * {@link AV_ERR_INVALID_STATE}, this interface was called in invalid state. 306 * @deprecated since 11 307 * @useinstead OH_VideoEncoder_FreeOutputBuffer 308 * @since 9 309 * @version 1.0 310 */ 311OH_AVErrCode OH_VideoEncoder_FreeOutputData(OH_AVCodec *codec, uint32_t index); 312 313/** 314 * @brief Notifies the video encoder that the input stream has ended. It is recommended to use this interface to notify 315 * the encoder of the end of the stream in surface mode 316 * @syscap SystemCapability.Multimedia.Media.VideoEncoder 317 * @param codec Pointer to an OH_AVCodec instance 318 * @return Returns AV_ERR_OK if the execution is successful, 319 * otherwise returns a specific error code, refer to {@link OH_AVErrCode}. 320 * {@link AV_ERR_NO_MEMORY}, instance has already released. 321 * {@link AV_ERR_INVALID_VAL}, the encoder is nullptr or invalid. 322 * {@link AV_ERR_UNKNOWN}, unknown error. 323 * {@link AV_ERR_SERVICE_DIED}, avcodec service is died. 324 * {@link AV_ERR_INVALID_STATE}, this interface was called in invalid state. 325 * @since 9 326 * @version 1.0 327 */ 328OH_AVErrCode OH_VideoEncoder_NotifyEndOfStream(OH_AVCodec *codec); 329 330/** 331 * @brief Submit the input buffer filled with data to the video encoder. 332 * @syscap SystemCapability.Multimedia.Media.VideoEncoder 333 * @param codec Pointer to an OH_AVCodec instance 334 * @param index Enter the index value corresponding to the Buffer 335 * @param attr Information describing the data contained in the Buffer 336 * @return Returns AV_ERR_OK if the execution is successful, 337 * otherwise returns a specific error code, refer to {@link OH_AVErrCode}. 338 * {@link AV_ERR_NO_MEMORY}, instance has already released. 339 * {@link AV_ERR_INVALID_VAL}, the encoder is nullptr or invalid. 340 * Buffer index should be given by {@link OH_AVCodecOnNeedInputData}. 341 * {@link AV_ERR_UNKNOWN}, unknown error. 342 * {@link AV_ERR_SERVICE_DIED}, avcodec service is died. 343 * {@link AV_ERR_INVALID_STATE}, this interface was called in invalid state. 344 * @deprecated since 11 345 * @useinstead OH_VideoEncoder_PushInputBuffer 346 * @since 10 347 */ 348OH_AVErrCode OH_VideoEncoder_PushInputData(OH_AVCodec *codec, uint32_t index, OH_AVCodecBufferAttr attr); 349 350/** 351 * @brief Submit the input buffer filled with data to the video encoder. 352 * @syscap SystemCapability.Multimedia.Media.VideoEncoder 353 * @param codec Pointer to an OH_AVCodec instance 354 * @param index Enter the index value corresponding to the Buffer 355 * @return Returns AV_ERR_OK if the execution is successful, 356 * otherwise returns a specific error code, refer to {@link OH_AVErrCode}. 357 * {@link AV_ERR_NO_MEMORY}, instance has already released. 358 * {@link AV_ERR_INVALID_VAL}, the encoder is nullptr or invalid. 359 * Buffer index should be given by {@link OH_AVCodecOnNeedInputBuffer}. 360 * {@link AV_ERR_UNKNOWN}, unknown error. 361 * {@link AV_ERR_SERVICE_DIED}, avcodec service is died. 362 * {@link AV_ERR_INVALID_STATE}, this interface was called in invalid state. 363 364 * @since 11 365 */ 366OH_AVErrCode OH_VideoEncoder_PushInputBuffer(OH_AVCodec *codec, uint32_t index); 367 368/** 369 * @brief Submit the input parameter filled with data to the video encoder. 370 * 371 * @syscap SystemCapability.Multimedia.Media.VideoEncoder 372 * @param codec Pointer to an OH_AVCodec instance 373 * @param index Enter the index value corresponding to the input parameter 374 * @return Returns AV_ERR_OK if the execution is successful, 375 * otherwise returns a specific error code, refer to {@link OH_AVErrCode}. 376 * {@link AV_ERR_NO_MEMORY}, instance has already released. 377 * {@link AV_ERR_INVALID_VAL}, the encoder is nullptr or invalid. 378 * Index should be given by {@link OH_VideoEncoder_OnNeedInputParameter}. 379 * {@link AV_ERR_UNKNOWN}, unknown error. 380 * {@link AV_ERR_SERVICE_DIED}, avcodec service is died. 381 * {@link AV_ERR_INVALID_STATE}, this interface was called in invalid state. 382 * @since 12 383 */ 384OH_AVErrCode OH_VideoEncoder_PushInputParameter(OH_AVCodec *codec, uint32_t index); 385 386/** 387 * @brief Return the processed output Buffer to the encoder. 388 * @syscap SystemCapability.Multimedia.Media.VideoEncoder 389 * @param codec Pointer to an OH_AVCodec instance 390 * @param index The index value corresponding to the output Buffer 391 * @return Returns AV_ERR_OK if the execution is successful, 392 * otherwise returns a specific error code, refer to {@link OH_AVErrCode}. 393 * {@link AV_ERR_NO_MEMORY}, instance has already released. 394 * {@link AV_ERR_INVALID_VAL}, the encoder is nullptr or invalid. 395 * Buffer index should be given by {@link OH_AVCodecOnNewOutputBuffer}. 396 * {@link AV_ERR_UNKNOWN}, unknown error. 397 * {@link AV_ERR_SERVICE_DIED}, avcodec service is died. 398 * {@link AV_ERR_INVALID_STATE}, this interface was called in invalid state. 399 * @since 11 400 */ 401OH_AVErrCode OH_VideoEncoder_FreeOutputBuffer(OH_AVCodec *codec, uint32_t index); 402 403/** 404 * @brief Get the input data description of the encoder after call {@OH_VideoEncoder_Configure}, 405 * refer to {@link OH_AVFormat} for details. It should be noted that the life cycle of the OH_AVFormat 406 * instance pointed to by the return value needs to be manually released by the caller. 407 * @syscap SystemCapability.Multimedia.Media.VideoEncoder 408 * @param codec Pointer to an OH_AVCodec instance 409 * @return Returns a pointer to an OH_AVFormat instance. 410 * Return nullptr if the encoder is nullptr or invaild. 411 * @since 10 412 */ 413OH_AVFormat *OH_VideoEncoder_GetInputDescription(OH_AVCodec *codec); 414 415/** 416 * @brief Check whether the current codec instance is valid. It can be used fault recovery or app 417 * switchback from the background 418 * @syscap SystemCapability.Multimedia.Media.VideoEncoder 419 * @param codec Pointer to an OH_AVCodec instance 420 * @param isValid Output Parameter. A pointer to a boolean instance, it is true if the codec instance is valid, 421 * false if the codec instance is invalid 422 * @return Returns AV_ERR_OK if the execution is successful, 423 * otherwise returns a specific error code, refer to {@link OH_AVErrCode}. 424 * {@link AV_ERR_NO_MEMORY}, instance has already released. 425 * {@link AV_ERR_INVALID_VAL}, the encoder is nullptr or invalid. 426 * {@link AV_ERR_UNKNOWN}, unknown error. 427 * {@link AV_ERR_SERVICE_DIED}, avcodec service is died. 428 * @since 10 429 */ 430OH_AVErrCode OH_VideoEncoder_IsValid(OH_AVCodec *codec, bool *isValid); 431 432/** 433 * @brief The bitrate mode of video encoder. 434 * @syscap SystemCapability.Multimedia.Media.VideoEncoder 435 * @since 9 436 * @version 1.0 437 */ 438typedef enum OH_VideoEncodeBitrateMode { 439 /* constant bit rate mode. */ 440 CBR = 0, 441 /* variable bit rate mode. */ 442 VBR = 1, 443 /* constant quality mode. */ 444 CQ = 2, 445} OH_VideoEncodeBitrateMode; 446 447#ifdef __cplusplus 448} 449#endif 450 451#endif // NATIVE_AVCODEC_VIDEOENCODER_H