1/* 2 * Copyright (c) 2008 The Khronos Group Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining 5 * a copy of this software and associated documentation files (the 6 * "Software"), to deal in the Software without restriction, including 7 * without limitation the rights to use, copy, modify, merge, publish, 8 * distribute, sublicense, and/or sell copies of the Software, and to 9 * permit persons to whom the Software is furnished to do so, subject 10 * to the following conditions: 11 * The above copyright notice and this permission notice shall be included 12 * in all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 17 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 18 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 19 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 20 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 21 * 22 */ 23 24/** OMX_Core.h - OpenMax IL version 1.1.2 25 * The OMX_Core header file contains the definitions used by both the 26 * application and the component to access common items. 27 */ 28 29#ifndef OMX_Core_h 30#define OMX_Core_h 31 32#ifdef __cplusplus 33extern "C" { 34#endif /* __cplusplus */ 35 36 37/* Each OMX header shall include all required header files to allow the 38 * header to compile without errors. The includes below are required 39 * for this header file to compile successfully 40 */ 41 42#include <OMX_Index.h> 43 44 45/** The OMX_COMMANDTYPE enumeration is used to specify the action in the 46 * OMX_SendCommand macro. 47 * @ingroup core 48 */ 49typedef enum OMX_COMMANDTYPE 50{ 51 OMX_CommandStateSet, /**< Change the component state */ 52 OMX_CommandFlush, /**< Flush the data queue(s) of a component */ 53 OMX_CommandPortDisable, /**< Disable a port on a component. */ 54 OMX_CommandPortEnable, /**< Enable a port on a component. */ 55 OMX_CommandMarkBuffer, /**< Mark a component/buffer for observation */ 56 OMX_CommandKhronosExtensions = 0x6F000000, /**< Reserved region for introducing Khronos Standard Extensions */ 57 OMX_CommandVendorStartUnused = 0x7F000000, /**< Reserved region for introducing Vendor Extensions */ 58 OMX_CommandMax = 0X7FFFFFFF 59} OMX_COMMANDTYPE; 60 61 62 63/** The OMX_STATETYPE enumeration is used to indicate or change the component 64 * state. This enumeration reflects the current state of the component when 65 * used with the OMX_GetState macro or becomes the parameter in a state change 66 * command when used with the OMX_SendCommand macro. 67 * 68 * The component will be in the Loaded state after the component is initially 69 * loaded into memory. In the Loaded state, the component is not allowed to 70 * allocate or hold resources other than to build it's internal parameter 71 * and configuration tables. The application will send one or more 72 * SetParameters/GetParameters and SetConfig/GetConfig commands to the 73 * component and the component will record each of these parameter and 74 * configuration changes for use later. When the application sends the 75 * Idle command, the component will acquire the resources needed for the 76 * specified configuration and will transition to the idle state if the 77 * allocation is successful. If the component cannot successfully 78 * transition to the idle state for any reason, the state of the component 79 * shall be fully rolled back to the Loaded state (e.g. all allocated 80 * resources shall be released). When the component receives the command 81 * to go to the Executing state, it shall begin processing buffers by 82 * sending all input buffers it holds to the application. While 83 * the component is in the Idle state, the application may also send the 84 * Pause command. If the component receives the pause command while in the 85 * Idle state, the component shall send all input buffers it holds to the 86 * application, but shall not begin processing buffers. This will allow the 87 * application to prefill buffers. 88 * 89 * @ingroup comp 90 */ 91 92typedef enum OMX_STATETYPE 93{ 94 OMX_StateInvalid, /**< component has detected that it's internal data 95 structures are corrupted to the point that 96 it cannot determine it's state properly */ 97 OMX_StateLoaded, /**< component has been loaded but has not completed 98 initialization. The OMX_SetParameter macro 99 and the OMX_GetParameter macro are the only 100 valid macros allowed to be sent to the 101 component in this state. */ 102 OMX_StateIdle, /**< component initialization has been completed 103 successfully and the component is ready to 104 to start. */ 105 OMX_StateExecuting, /**< component has accepted the start command and 106 is processing data (if data is available) */ 107 OMX_StatePause, /**< component has received pause command */ 108 OMX_StateWaitForResources, /**< component is waiting for resources, either after 109 preemption or before it gets the resources requested. 110 See specification for complete details. */ 111 OMX_StateKhronosExtensions = 0x6F000000, /**< Reserved region for introducing Khronos Standard Extensions */ 112 OMX_StateVendorStartUnused = 0x7F000000, /**< Reserved region for introducing Vendor Extensions */ 113 OMX_StateMax = 0X7FFFFFFF 114} OMX_STATETYPE; 115 116/** The OMX_ERRORTYPE enumeration defines the standard OMX Errors. These 117 * errors should cover most of the common failure cases. However, 118 * vendors are free to add additional error messages of their own as 119 * long as they follow these rules: 120 * 1. Vendor error messages shall be in the range of 0x90000000 to 121 * 0x9000FFFF. 122 * 2. Vendor error messages shall be defined in a header file provided 123 * with the component. No error messages are allowed that are 124 * not defined. 125 */ 126typedef enum OMX_ERRORTYPE 127{ 128 OMX_ErrorNone = 0, 129 130 /** There were insufficient resources to perform the requested operation */ 131 OMX_ErrorInsufficientResources = (OMX_S32) 0x80001000, 132 133 /** There was an error, but the cause of the error could not be determined */ 134 OMX_ErrorUndefined = (OMX_S32) 0x80001001, 135 136 /** The component name string was not valid */ 137 OMX_ErrorInvalidComponentName = (OMX_S32) 0x80001002, 138 139 /** No component with the specified name string was found */ 140 OMX_ErrorComponentNotFound = (OMX_S32) 0x80001003, 141 142 /** The component specified did not have a "OMX_ComponentInit" or 143 "OMX_ComponentDeInit entry point */ 144 OMX_ErrorInvalidComponent = (OMX_S32) 0x80001004, 145 146 /** One or more parameters were not valid */ 147 OMX_ErrorBadParameter = (OMX_S32) 0x80001005, 148 149 /** The requested function is not implemented */ 150 OMX_ErrorNotImplemented = (OMX_S32) 0x80001006, 151 152 /** The buffer was emptied before the next buffer was ready */ 153 OMX_ErrorUnderflow = (OMX_S32) 0x80001007, 154 155 /** The buffer was not available when it was needed */ 156 OMX_ErrorOverflow = (OMX_S32) 0x80001008, 157 158 /** The hardware failed to respond as expected */ 159 OMX_ErrorHardware = (OMX_S32) 0x80001009, 160 161 /** The component is in the state OMX_StateInvalid */ 162 OMX_ErrorInvalidState = (OMX_S32) 0x8000100A, 163 164 /** Stream is found to be corrupt */ 165 OMX_ErrorStreamCorrupt = (OMX_S32) 0x8000100B, 166 167 /** Ports being connected are not compatible */ 168 OMX_ErrorPortsNotCompatible = (OMX_S32) 0x8000100C, 169 170 /** Resources allocated to an idle component have been 171 lost resulting in the component returning to the loaded state */ 172 OMX_ErrorResourcesLost = (OMX_S32) 0x8000100D, 173 174 /** No more indicies can be enumerated */ 175 OMX_ErrorNoMore = (OMX_S32) 0x8000100E, 176 177 /** The component detected a version mismatch */ 178 OMX_ErrorVersionMismatch = (OMX_S32) 0x8000100F, 179 180 /** The component is not ready to return data at this time */ 181 OMX_ErrorNotReady = (OMX_S32) 0x80001010, 182 183 /** There was a timeout that occurred */ 184 OMX_ErrorTimeout = (OMX_S32) 0x80001011, 185 186 /** This error occurs when trying to transition into the state you are already in */ 187 OMX_ErrorSameState = (OMX_S32) 0x80001012, 188 189 /** Resources allocated to an executing or paused component have been 190 preempted, causing the component to return to the idle state */ 191 OMX_ErrorResourcesPreempted = (OMX_S32) 0x80001013, 192 193 /** A non-supplier port sends this error to the IL client (via the EventHandler callback) 194 during the allocation of buffers (on a transition from the LOADED to the IDLE state or 195 on a port restart) when it deems that it has waited an unusually long time for the supplier 196 to send it an allocated buffer via a UseBuffer call. */ 197 OMX_ErrorPortUnresponsiveDuringAllocation = (OMX_S32) 0x80001014, 198 199 /** A non-supplier port sends this error to the IL client (via the EventHandler callback) 200 during the deallocation of buffers (on a transition from the IDLE to LOADED state or 201 on a port stop) when it deems that it has waited an unusually long time for the supplier 202 to request the deallocation of a buffer header via a FreeBuffer call. */ 203 OMX_ErrorPortUnresponsiveDuringDeallocation = (OMX_S32) 0x80001015, 204 205 /** A supplier port sends this error to the IL client (via the EventHandler callback) 206 during the stopping of a port (either on a transition from the IDLE to LOADED 207 state or a port stop) when it deems that it has waited an unusually long time for 208 the non-supplier to return a buffer via an EmptyThisBuffer or FillThisBuffer call. */ 209 OMX_ErrorPortUnresponsiveDuringStop = (OMX_S32) 0x80001016, 210 211 /** Attempting a state transtion that is not allowed */ 212 OMX_ErrorIncorrectStateTransition = (OMX_S32) 0x80001017, 213 214 /* Attempting a command that is not allowed during the present state. */ 215 OMX_ErrorIncorrectStateOperation = (OMX_S32) 0x80001018, 216 217 /** The values encapsulated in the parameter or config structure are not supported. */ 218 OMX_ErrorUnsupportedSetting = (OMX_S32) 0x80001019, 219 220 /** The parameter or config indicated by the given index is not supported. */ 221 OMX_ErrorUnsupportedIndex = (OMX_S32) 0x8000101A, 222 223 /** The port index supplied is incorrect. */ 224 OMX_ErrorBadPortIndex = (OMX_S32) 0x8000101B, 225 226 /** The port has lost one or more of its buffers and it thus unpopulated. */ 227 OMX_ErrorPortUnpopulated = (OMX_S32) 0x8000101C, 228 229 /** Component suspended due to temporary loss of resources */ 230 OMX_ErrorComponentSuspended = (OMX_S32) 0x8000101D, 231 232 /** Component suspended due to an inability to acquire dynamic resources */ 233 OMX_ErrorDynamicResourcesUnavailable = (OMX_S32) 0x8000101E, 234 235 /** When the macroblock error reporting is enabled the component returns new error 236 for every frame that has errors */ 237 OMX_ErrorMbErrorsInFrame = (OMX_S32) 0x8000101F, 238 239 /** A component reports this error when it cannot parse or determine the format of an input stream. */ 240 OMX_ErrorFormatNotDetected = (OMX_S32) 0x80001020, 241 242 /** The content open operation failed. */ 243 OMX_ErrorContentPipeOpenFailed = (OMX_S32) 0x80001021, 244 245 /** The content creation operation failed. */ 246 OMX_ErrorContentPipeCreationFailed = (OMX_S32) 0x80001022, 247 248 /** Separate table information is being used */ 249 OMX_ErrorSeperateTablesUsed = (OMX_S32) 0x80001023, 250 251 /** Tunneling is unsupported by the component*/ 252 OMX_ErrorTunnelingUnsupported = (OMX_S32) 0x80001024, 253 254 OMX_ErrorKhronosExtensions = (OMX_S32)0x8F000000, /**< Reserved region for introducing Khronos Standard Extensions */ 255 OMX_ErrorVendorStartUnused = (OMX_S32)0x90000000, /**< Reserved region for introducing Vendor Extensions */ 256 OMX_ErrorMax = 0x7FFFFFFF 257} OMX_ERRORTYPE; 258 259/** @ingroup core */ 260typedef OMX_ERRORTYPE (* OMX_COMPONENTINITTYPE)(OMX_IN OMX_HANDLETYPE hComponent); 261 262/** @ingroup core */ 263typedef struct OMX_COMPONENTREGISTERTYPE 264{ 265 const char * pName; /* Component name, 128 byte limit (including '\0') applies */ 266 OMX_COMPONENTINITTYPE pInitialize; /* Component instance initialization function */ 267} OMX_COMPONENTREGISTERTYPE; 268 269/** @ingroup core */ 270extern OMX_COMPONENTREGISTERTYPE OMX_ComponentRegistered[]; 271 272/** @ingroup rpm */ 273typedef struct OMX_PRIORITYMGMTTYPE { 274 OMX_U32 nSize; /**< size of the structure in bytes */ 275 OMX_VERSIONTYPE nVersion; /**< OMX specification version information */ 276 OMX_U32 nGroupPriority; /**< Priority of the component group */ 277 OMX_U32 nGroupID; /**< ID of the component group */ 278} OMX_PRIORITYMGMTTYPE; 279 280/* Component name and Role names are limited to 128 characters including the terminating '\0'. */ 281#define OMX_MAX_STRINGNAME_SIZE 128 282 283/** @ingroup comp */ 284typedef struct OMX_PARAM_COMPONENTROLETYPE { 285 OMX_U32 nSize; /**< size of the structure in bytes */ 286 OMX_VERSIONTYPE nVersion; /**< OMX specification version information */ 287 OMX_U8 cRole[OMX_MAX_STRINGNAME_SIZE]; /**< name of standard component which defines component role */ 288} OMX_PARAM_COMPONENTROLETYPE; 289 290/** End of Stream Buffer Flag: 291 * 292 * A component sets EOS when it has no more data to emit on a particular 293 * output port. Thus an output port shall set EOS on the last buffer it 294 * emits. A component's determination of when an output port should 295 * cease sending data is implemenation specific. 296 * @ingroup buf 297 */ 298 299#define OMX_BUFFERFLAG_EOS 0x00000001 300 301/** Start Time Buffer Flag: 302 * 303 * The source of a stream (e.g. a demux component) sets the STARTTIME 304 * flag on the buffer that contains the starting timestamp for the 305 * stream. The starting timestamp corresponds to the first data that 306 * should be displayed at startup or after a seek. 307 * The first timestamp of the stream is not necessarily the start time. 308 * For instance, in the case of a seek to a particular video frame, 309 * the target frame may be an interframe. Thus the first buffer of 310 * the stream will be the intra-frame preceding the target frame and 311 * the starttime will occur with the target frame (with any other 312 * required frames required to reconstruct the target intervening). 313 * 314 * The STARTTIME flag is directly associated with the buffer's 315 * timestamp ' thus its association to buffer data and its 316 * propagation is identical to the timestamp's. 317 * 318 * When a Sync Component client receives a buffer with the 319 * STARTTIME flag it shall perform a SetConfig on its sync port 320 * using OMX_ConfigTimeClientStartTime and passing the buffer's 321 * timestamp. 322 * 323 * @ingroup buf 324 */ 325 326#define OMX_BUFFERFLAG_STARTTIME 0x00000002 327 328 329 330/** Decode Only Buffer Flag: 331 * 332 * The source of a stream (e.g. a demux component) sets the DECODEONLY 333 * flag on any buffer that should shall be decoded but should not be 334 * displayed. This flag is used, for instance, when a source seeks to 335 * a target interframe that requires the decode of frames preceding the 336 * target to facilitate the target's reconstruction. In this case the 337 * source would emit the frames preceding the target downstream 338 * but mark them as decode only. 339 * 340 * The DECODEONLY is associated with buffer data and propagated in a 341 * manner identical to the buffer timestamp. 342 * 343 * A component that renders data should ignore all buffers with 344 * the DECODEONLY flag set. 345 * 346 * @ingroup buf 347 */ 348 349#define OMX_BUFFERFLAG_DECODEONLY 0x00000004 350 351 352/* Data Corrupt Flag: This flag is set when the IL client believes the data in the associated buffer is corrupt 353 * @ingroup buf 354 */ 355 356#define OMX_BUFFERFLAG_DATACORRUPT 0x00000008 357 358/* End of Frame: The buffer contains exactly one end of frame and no data 359 * occurs after the end of frame. This flag is an optional hint. The absence 360 * of this flag does not imply the absence of an end of frame within the buffer. 361 * @ingroup buf 362*/ 363#define OMX_BUFFERFLAG_ENDOFFRAME 0x00000010 364 365/* Sync Frame Flag: This flag is set when the buffer content contains a coded sync frame ' 366 * a frame that has no dependency on any other frame information 367 * @ingroup buf 368 */ 369#define OMX_BUFFERFLAG_SYNCFRAME 0x00000020 370 371/* Extra data present flag: there is extra data appended to the data stream 372 * residing in the buffer 373 * @ingroup buf 374 */ 375#define OMX_BUFFERFLAG_EXTRADATA 0x00000040 376 377/** Codec Config Buffer Flag: 378* OMX_BUFFERFLAG_CODECCONFIG is an optional flag that is set by an 379* output port when all bytes in the buffer form part or all of a set of 380* codec specific configuration data. Examples include SPS/PPS nal units 381* for OMX_VIDEO_CodingAVC or AudioSpecificConfig data for 382* OMX_AUDIO_CodingAAC. Any component that for a given stream sets 383* OMX_BUFFERFLAG_CODECCONFIG shall not mix codec configuration bytes 384* with frame data in the same buffer, and shall send all buffers 385* containing codec configuration bytes before any buffers containing 386* frame data that those configurations bytes describe. 387* If the stream format for a particular codec has a frame specific 388* header at the start of each frame, for example OMX_AUDIO_CodingMP3 or 389* OMX_AUDIO_CodingAAC in ADTS mode, then these shall be presented as 390* normal without setting OMX_BUFFERFLAG_CODECCONFIG. 391 * @ingroup buf 392 */ 393#define OMX_BUFFERFLAG_CODECCONFIG 0x00000080 394 395 396 397/** @ingroup buf */ 398typedef struct OMX_BUFFERHEADERTYPE 399{ 400 OMX_U32 nSize; /**< size of the structure in bytes */ 401 OMX_VERSIONTYPE nVersion; /**< OMX specification version information */ 402 OMX_U8* pBuffer; /**< Pointer to actual block of memory 403 that is acting as the buffer */ 404 OMX_U32 nAllocLen; /**< size of the buffer allocated, in bytes */ 405 OMX_U32 nFilledLen; /**< number of bytes currently in the 406 buffer */ 407 OMX_U32 nOffset; /**< start offset of valid data in bytes from 408 the start of the buffer */ 409 OMX_PTR pAppPrivate; /**< pointer to any data the application 410 wants to associate with this buffer */ 411 OMX_PTR pPlatformPrivate; /**< pointer to any data the platform 412 wants to associate with this buffer */ 413 OMX_PTR pInputPortPrivate; /**< pointer to any data the input port 414 wants to associate with this buffer */ 415 OMX_PTR pOutputPortPrivate; /**< pointer to any data the output port 416 wants to associate with this buffer */ 417 OMX_HANDLETYPE hMarkTargetComponent; /**< The component that will generate a 418 mark event upon processing this buffer. */ 419 OMX_PTR pMarkData; /**< Application specific data associated with 420 the mark sent on a mark event to disambiguate 421 this mark from others. */ 422 OMX_U32 nTickCount; /**< Optional entry that the component and 423 application can update with a tick count 424 when they access the component. This 425 value should be in microseconds. Since 426 this is a value relative to an arbitrary 427 starting point, this value cannot be used 428 to determine absolute time. This is an 429 optional entry and not all components 430 will update it.*/ 431 OMX_TICKS nTimeStamp; /**< Timestamp corresponding to the sample 432 starting at the first logical sample 433 boundary in the buffer. Timestamps of 434 successive samples within the buffer may 435 be inferred by adding the duration of the 436 of the preceding buffer to the timestamp 437 of the preceding buffer.*/ 438 OMX_U32 nFlags; /**< buffer specific flags */ 439 OMX_U32 nOutputPortIndex; /**< The index of the output port (if any) using 440 this buffer */ 441 OMX_U32 nInputPortIndex; /**< The index of the input port (if any) using 442 this buffer */ 443} OMX_BUFFERHEADERTYPE; 444 445/** The OMX_EXTRADATATYPE enumeration is used to define the 446 * possible extra data payload types. 447 * NB: this enum is binary backwards compatible with the previous 448 * OMX_EXTRADATA_QUANT define. This should be replaced with 449 * OMX_ExtraDataQuantization. 450 */ 451typedef enum OMX_EXTRADATATYPE 452{ 453 OMX_ExtraDataNone = 0, /**< Indicates that no more extra data sections follow */ 454 OMX_ExtraDataQuantization, /**< The data payload contains quantization data */ 455 OMX_ExtraDataKhronosExtensions = 0x6F000000, /**< Reserved region for introducing Khronos Standard Extensions */ 456 OMX_ExtraDataVendorStartUnused = 0x7F000000, /**< Reserved region for introducing Vendor Extensions */ 457 OMX_ExtraDataMax = 0x7FFFFFFF 458} OMX_EXTRADATATYPE; 459 460 461typedef struct OMX_OTHER_EXTRADATATYPE { 462 OMX_U32 nSize; 463 OMX_VERSIONTYPE nVersion; 464 OMX_U32 nPortIndex; 465 OMX_EXTRADATATYPE eType; /* Extra Data type */ 466 OMX_U32 nDataSize; /* Size of the supporting data to follow */ 467 OMX_U8 data[1]; /* Supporting data hint */ 468} OMX_OTHER_EXTRADATATYPE; 469 470/** @ingroup comp */ 471typedef struct OMX_PORT_PARAM_TYPE { 472 OMX_U32 nSize; /**< size of the structure in bytes */ 473 OMX_VERSIONTYPE nVersion; /**< OMX specification version information */ 474 OMX_U32 nPorts; /**< The number of ports for this component */ 475 OMX_U32 nStartPortNumber; /** first port number for this type of port */ 476} OMX_PORT_PARAM_TYPE; 477 478/** @ingroup comp */ 479typedef enum OMX_EVENTTYPE 480{ 481 OMX_EventCmdComplete, /**< component has sucessfully completed a command */ 482 OMX_EventError, /**< component has detected an error condition */ 483 OMX_EventMark, /**< component has detected a buffer mark */ 484 OMX_EventPortSettingsChanged, /**< component is reported a port settings change */ 485 OMX_EventBufferFlag, /**< component has detected an EOS */ 486 OMX_EventResourcesAcquired, /**< component has been granted resources and is 487 automatically starting the state change from 488 OMX_StateWaitForResources to OMX_StateIdle. */ 489 OMX_EventComponentResumed, /**< Component resumed due to reacquisition of resources */ 490 OMX_EventDynamicResourcesAvailable, /**< Component has acquired previously unavailable dynamic resources */ 491 OMX_EventPortFormatDetected, /**< Component has detected a supported format. */ 492 OMX_EventKhronosExtensions = 0x6F000000, /**< Reserved region for introducing Khronos Standard Extensions */ 493 OMX_EventVendorStartUnused = 0x7F000000, /**< Reserved region for introducing Vendor Extensions */ 494 OMX_EventMax = 0x7FFFFFFF 495} OMX_EVENTTYPE; 496 497typedef struct OMX_CALLBACKTYPE 498{ 499 /** The EventHandler method is used to notify the application when an 500 event of interest occurs. Events are defined in the OMX_EVENTTYPE 501 enumeration. Please see that enumeration for details of what will 502 be returned for each type of event. Callbacks should not return 503 an error to the component, so if an error occurs, the application 504 shall handle it internally. This is a blocking call. 505 506 The application should return from this call within 5 msec to avoid 507 blocking the component for an excessively long period of time. 508 509 @param hComponent 510 handle of the component to access. This is the component 511 handle returned by the call to the GetHandle function. 512 @param pAppData 513 pointer to an application defined value that was provided in the 514 pAppData parameter to the OMX_GetHandle method for the component. 515 This application defined value is provided so that the application 516 can have a component specific context when receiving the callback. 517 @param eEvent 518 Event that the component wants to notify the application about. 519 @param nData1 520 nData will be the OMX_ERRORTYPE for an error event and will be 521 an OMX_COMMANDTYPE for a command complete event and OMX_INDEXTYPE for a OMX_PortSettingsChanged event. 522 @param nData2 523 nData2 will hold further information related to the event. Can be OMX_STATETYPE for 524 a OMX_CommandStateSet command or port index for a OMX_PortSettingsChanged event. 525 Default value is 0 if not used. ) 526 @param pEventData 527 Pointer to additional event-specific data (see spec for meaning). 528 */ 529 530 OMX_ERRORTYPE (*EventHandler)( 531 OMX_IN OMX_HANDLETYPE hComponent, 532 OMX_IN OMX_PTR pAppData, 533 OMX_IN OMX_EVENTTYPE eEvent, 534 OMX_IN OMX_U32 nData1, 535 OMX_IN OMX_U32 nData2, 536 OMX_IN OMX_PTR pEventData); 537 538 /** The EmptyBufferDone method is used to return emptied buffers from an 539 input port back to the application for reuse. This is a blocking call 540 so the application should not attempt to refill the buffers during this 541 call, but should queue them and refill them in another thread. There 542 is no error return, so the application shall handle any errors generated 543 internally. 544 545 The application should return from this call within 5 msec. 546 547 @param hComponent 548 handle of the component to access. This is the component 549 handle returned by the call to the GetHandle function. 550 @param pAppData 551 pointer to an application defined value that was provided in the 552 pAppData parameter to the OMX_GetHandle method for the component. 553 This application defined value is provided so that the application 554 can have a component specific context when receiving the callback. 555 @param pBuffer 556 pointer to an OMX_BUFFERHEADERTYPE structure allocated with UseBuffer 557 or AllocateBuffer indicating the buffer that was emptied. 558 @ingroup buf 559 */ 560 OMX_ERRORTYPE (*EmptyBufferDone)( 561 OMX_IN OMX_HANDLETYPE hComponent, 562 OMX_IN OMX_PTR pAppData, 563 OMX_IN OMX_BUFFERHEADERTYPE* pBuffer); 564 565 /** The FillBufferDone method is used to return filled buffers from an 566 output port back to the application for emptying and then reuse. 567 This is a blocking call so the application should not attempt to 568 empty the buffers during this call, but should queue the buffers 569 and empty them in another thread. There is no error return, so 570 the application shall handle any errors generated internally. The 571 application shall also update the buffer header to indicate the 572 number of bytes placed into the buffer. 573 574 The application should return from this call within 5 msec. 575 576 @param hComponent 577 handle of the component to access. This is the component 578 handle returned by the call to the GetHandle function. 579 @param pAppData 580 pointer to an application defined value that was provided in the 581 pAppData parameter to the OMX_GetHandle method for the component. 582 This application defined value is provided so that the application 583 can have a component specific context when receiving the callback. 584 @param pBuffer 585 pointer to an OMX_BUFFERHEADERTYPE structure allocated with UseBuffer 586 or AllocateBuffer indicating the buffer that was filled. 587 @ingroup buf 588 */ 589 OMX_ERRORTYPE (*FillBufferDone)( 590 OMX_OUT OMX_HANDLETYPE hComponent, 591 OMX_OUT OMX_PTR pAppData, 592 OMX_OUT OMX_BUFFERHEADERTYPE* pBuffer); 593 594} OMX_CALLBACKTYPE; 595 596/** The OMX_BUFFERSUPPLIERTYPE enumeration is used to dictate port supplier 597 preference when tunneling between two ports. 598 @ingroup tun buf 599*/ 600typedef enum OMX_BUFFERSUPPLIERTYPE 601{ 602 OMX_BufferSupplyUnspecified = 0x0, /**< port supplying the buffers is unspecified, 603 or don't care */ 604 OMX_BufferSupplyInput, /**< input port supplies the buffers */ 605 OMX_BufferSupplyOutput, /**< output port supplies the buffers */ 606 OMX_BufferSupplyKhronosExtensions = 0x6F000000, /**< Reserved region for introducing Khronos Standard Extensions */ 607 OMX_BufferSupplyVendorStartUnused = 0x7F000000, /**< Reserved region for introducing Vendor Extensions */ 608 OMX_BufferSupplyMax = 0x7FFFFFFF 609} OMX_BUFFERSUPPLIERTYPE; 610 611 612/** buffer supplier parameter 613 * @ingroup tun 614 */ 615typedef struct OMX_PARAM_BUFFERSUPPLIERTYPE { 616 OMX_U32 nSize; /**< size of the structure in bytes */ 617 OMX_VERSIONTYPE nVersion; /**< OMX specification version information */ 618 OMX_U32 nPortIndex; /**< port that this structure applies to */ 619 OMX_BUFFERSUPPLIERTYPE eBufferSupplier; /**< buffer supplier */ 620} OMX_PARAM_BUFFERSUPPLIERTYPE; 621 622 623/**< indicates that buffers received by an input port of a tunnel 624 may not modify the data in the buffers 625 @ingroup tun 626 */ 627#define OMX_PORTTUNNELFLAG_READONLY 0x00000001 628 629 630/** The OMX_TUNNELSETUPTYPE structure is used to pass data from an output 631 port to an input port as part the two ComponentTunnelRequest calls 632 resulting from a OMX_SetupTunnel call from the IL Client. 633 @ingroup tun 634 */ 635typedef struct OMX_TUNNELSETUPTYPE 636{ 637 OMX_U32 nTunnelFlags; /**< bit flags for tunneling */ 638 OMX_BUFFERSUPPLIERTYPE eSupplier; /**< supplier preference */ 639} OMX_TUNNELSETUPTYPE; 640 641/* OMX Component headers is included to enable the core to use 642 macros for functions into the component for OMX release 1.0. 643 Developers should not access any structures or data from within 644 the component header directly */ 645/* TO BE REMOVED - #include <OMX_Component.h> */ 646 647/** GetComponentVersion will return information about the component. 648 This is a blocking call. This macro will go directly from the 649 application to the component (via a core macro). The 650 component will return from this call within 5 msec. 651 @param [in] hComponent 652 handle of component to execute the command 653 @param [out] pComponentName 654 pointer to an empty string of length 128 bytes. The component 655 will write its name into this string. The name will be 656 terminated by a single zero byte. The name of a component will 657 be 127 bytes or less to leave room for the trailing zero byte. 658 An example of a valid component name is "OMX.ABC.ChannelMixer\0". 659 @param [out] pComponentVersion 660 pointer to an OMX Version structure that the component will fill 661 in. The component will fill in a value that indicates the 662 component version. NOTE: the component version is NOT the same 663 as the OMX Specification version (found in all structures). The 664 component version is defined by the vendor of the component and 665 its value is entirely up to the component vendor. 666 @param [out] pSpecVersion 667 pointer to an OMX Version structure that the component will fill 668 in. The SpecVersion is the version of the specification that the 669 component was built against. Please note that this value may or 670 may not match the structure's version. For example, if the 671 component was built against the 2.0 specification, but the 672 application (which creates the structure is built against the 673 1.0 specification the versions would be different. 674 @param [out] pComponentUUID 675 pointer to the UUID of the component which will be filled in by 676 the component. The UUID is a unique identifier that is set at 677 RUN time for the component and is unique to each instantion of 678 the component. 679 @return OMX_ERRORTYPE 680 If the command successfully executes, the return code will be 681 OMX_ErrorNone. Otherwise the appropriate OMX error will be returned. 682 @ingroup comp 683 */ 684#define OMX_GetComponentVersion( \ 685 hComponent, \ 686 pComponentName, \ 687 pComponentVersion, \ 688 pSpecVersion, \ 689 pComponentUUID) \ 690 ((OMX_COMPONENTTYPE*)hComponent)->GetComponentVersion( \ 691 hComponent, \ 692 pComponentName, \ 693 pComponentVersion, \ 694 pSpecVersion, \ 695 pComponentUUID) /* Macro End */ 696 697 698/** Send a command to the component. This call is a non-blocking call. 699 The component should check the parameters and then queue the command 700 to the component thread to be executed. The component thread shall 701 send the EventHandler() callback at the conclusion of the command. 702 This macro will go directly from the application to the component (via 703 a core macro). The component will return from this call within 5 msec. 704 705 When the command is "OMX_CommandStateSet" the component will queue a 706 state transition to the new state idenfied in nParam. 707 708 When the command is "OMX_CommandFlush", to flush a port's buffer queues, 709 the command will force the component to return all buffers NOT CURRENTLY 710 BEING PROCESSED to the application, in the order in which the buffers 711 were received. 712 713 When the command is "OMX_CommandPortDisable" or 714 "OMX_CommandPortEnable", the component's port (given by the value of 715 nParam) will be stopped or restarted. 716 717 When the command "OMX_CommandMarkBuffer" is used to mark a buffer, the 718 pCmdData will point to a OMX_MARKTYPE structure containing the component 719 handle of the component to examine the buffer chain for the mark. nParam1 720 contains the index of the port on which the buffer mark is applied. 721 722 Specification text for more details. 723 724 @param [in] hComponent 725 handle of component to execute the command 726 @param [in] Cmd 727 Command for the component to execute 728 @param [in] nParam 729 Parameter for the command to be executed. When Cmd has the value 730 OMX_CommandStateSet, value is a member of OMX_STATETYPE. When Cmd has 731 the value OMX_CommandFlush, value of nParam indicates which port(s) 732 to flush. -1 is used to flush all ports a single port index will 733 only flush that port. When Cmd has the value "OMX_CommandPortDisable" 734 or "OMX_CommandPortEnable", the component's port is given by 735 the value of nParam. When Cmd has the value "OMX_CommandMarkBuffer" 736 the components pot is given by the value of nParam. 737 @param [in] pCmdData 738 Parameter pointing to the OMX_MARKTYPE structure when Cmd has the value 739 "OMX_CommandMarkBuffer". 740 @return OMX_ERRORTYPE 741 If the command successfully executes, the return code will be 742 OMX_ErrorNone. Otherwise the appropriate OMX error will be returned. 743 @ingroup comp 744 */ 745#define OMX_SendCommand( \ 746 hComponent, \ 747 Cmd, \ 748 nParam, \ 749 pCmdData) \ 750 ((OMX_COMPONENTTYPE*)hComponent)->SendCommand( \ 751 hComponent, \ 752 Cmd, \ 753 nParam, \ 754 pCmdData) /* Macro End */ 755 756 757/** The OMX_GetParameter macro will get one of the current parameter 758 settings from the component. This macro cannot only be invoked when 759 the component is in the OMX_StateInvalid state. The nParamIndex 760 parameter is used to indicate which structure is being requested from 761 the component. The application shall allocate the correct structure 762 and shall fill in the structure size and version information before 763 invoking this macro. When the parameter applies to a port, the 764 caller shall fill in the appropriate nPortIndex value indicating the 765 port on which the parameter applies. If the component has not had 766 any settings changed, then the component should return a set of 767 valid DEFAULT parameters for the component. This is a blocking 768 call. 769 770 The component should return from this call within 20 msec. 771 772 @param [in] hComponent 773 Handle of the component to be accessed. This is the component 774 handle returned by the call to the OMX_GetHandle function. 775 @param [in] nParamIndex 776 Index of the structure to be filled. This value is from the 777 OMX_INDEXTYPE enumeration. 778 @param [in,out] pComponentParameterStructure 779 Pointer to application allocated structure to be filled by the 780 component. 781 @return OMX_ERRORTYPE 782 If the command successfully executes, the return code will be 783 OMX_ErrorNone. Otherwise the appropriate OMX error will be returned. 784 @ingroup comp 785 */ 786#define OMX_GetParameter( \ 787 hComponent, \ 788 nParamIndex, \ 789 pComponentParameterStructure) \ 790 ((OMX_COMPONENTTYPE*)hComponent)->GetParameter( \ 791 hComponent, \ 792 nParamIndex, \ 793 pComponentParameterStructure) /* Macro End */ 794 795 796/** The OMX_SetParameter macro will send an initialization parameter 797 structure to a component. Each structure shall be sent one at a time, 798 in a separate invocation of the macro. This macro can only be 799 invoked when the component is in the OMX_StateLoaded state, or the 800 port is disabled (when the parameter applies to a port). The 801 nParamIndex parameter is used to indicate which structure is being 802 passed to the component. The application shall allocate the 803 correct structure and shall fill in the structure size and version 804 information (as well as the actual data) before invoking this macro. 805 The application is free to dispose of this structure after the call 806 as the component is required to copy any data it shall retain. This 807 is a blocking call. 808 809 The component should return from this call within 20 msec. 810 811 @param [in] hComponent 812 Handle of the component to be accessed. This is the component 813 handle returned by the call to the OMX_GetHandle function. 814 @param [in] nIndex 815 Index of the structure to be sent. This value is from the 816 OMX_INDEXTYPE enumeration. 817 @param [in] pComponentParameterStructure 818 pointer to application allocated structure to be used for 819 initialization by the component. 820 @return OMX_ERRORTYPE 821 If the command successfully executes, the return code will be 822 OMX_ErrorNone. Otherwise the appropriate OMX error will be returned. 823 @ingroup comp 824 */ 825#define OMX_SetParameter( \ 826 hComponent, \ 827 nParamIndex, \ 828 pComponentParameterStructure) \ 829 ((OMX_COMPONENTTYPE*)hComponent)->SetParameter( \ 830 hComponent, \ 831 nParamIndex, \ 832 pComponentParameterStructure) /* Macro End */ 833 834 835/** The OMX_GetConfig macro will get one of the configuration structures 836 from a component. This macro can be invoked anytime after the 837 component has been loaded. The nParamIndex call parameter is used to 838 indicate which structure is being requested from the component. The 839 application shall allocate the correct structure and shall fill in the 840 structure size and version information before invoking this macro. 841 If the component has not had this configuration parameter sent before, 842 then the component should return a set of valid DEFAULT values for the 843 component. This is a blocking call. 844 845 The component should return from this call within 5 msec. 846 847 @param [in] hComponent 848 Handle of the component to be accessed. This is the component 849 handle returned by the call to the OMX_GetHandle function. 850 @param [in] nIndex 851 Index of the structure to be filled. This value is from the 852 OMX_INDEXTYPE enumeration. 853 @param [in,out] pComponentConfigStructure 854 pointer to application allocated structure to be filled by the 855 component. 856 @return OMX_ERRORTYPE 857 If the command successfully executes, the return code will be 858 OMX_ErrorNone. Otherwise the appropriate OMX error will be returned. 859 @ingroup comp 860*/ 861#define OMX_GetConfig( \ 862 hComponent, \ 863 nConfigIndex, \ 864 pComponentConfigStructure) \ 865 ((OMX_COMPONENTTYPE*)hComponent)->GetConfig( \ 866 hComponent, \ 867 nConfigIndex, \ 868 pComponentConfigStructure) /* Macro End */ 869 870 871/** The OMX_SetConfig macro will send one of the configuration 872 structures to a component. Each structure shall be sent one at a time, 873 each in a separate invocation of the macro. This macro can be invoked 874 anytime after the component has been loaded. The application shall 875 allocate the correct structure and shall fill in the structure size 876 and version information (as well as the actual data) before invoking 877 this macro. The application is free to dispose of this structure after 878 the call as the component is required to copy any data it shall retain. 879 This is a blocking call. 880 881 The component should return from this call within 5 msec. 882 883 @param [in] hComponent 884 Handle of the component to be accessed. This is the component 885 handle returned by the call to the OMX_GetHandle function. 886 @param [in] nConfigIndex 887 Index of the structure to be sent. This value is from the 888 OMX_INDEXTYPE enumeration above. 889 @param [in] pComponentConfigStructure 890 pointer to application allocated structure to be used for 891 initialization by the component. 892 @return OMX_ERRORTYPE 893 If the command successfully executes, the return code will be 894 OMX_ErrorNone. Otherwise the appropriate OMX error will be returned. 895 @ingroup comp 896 */ 897#define OMX_SetConfig( \ 898 hComponent, \ 899 nConfigIndex, \ 900 pComponentConfigStructure) \ 901 ((OMX_COMPONENTTYPE*)hComponent)->SetConfig( \ 902 hComponent, \ 903 nConfigIndex, \ 904 pComponentConfigStructure) /* Macro End */ 905 906 907/** The OMX_GetExtensionIndex macro will invoke a component to translate 908 a vendor specific configuration or parameter string into an OMX 909 structure index. There is no requirement for the vendor to support 910 this command for the indexes already found in the OMX_INDEXTYPE 911 enumeration (this is done to save space in small components). The 912 component shall support all vendor supplied extension indexes not found 913 in the master OMX_INDEXTYPE enumeration. This is a blocking call. 914 915 The component should return from this call within 5 msec. 916 917 @param [in] hComponent 918 Handle of the component to be accessed. This is the component 919 handle returned by the call to the GetHandle function. 920 @param [in] cParameterName 921 OMX_STRING that shall be less than 128 characters long including 922 the trailing null byte. This is the string that will get 923 translated by the component into a configuration index. 924 @param [out] pIndexType 925 a pointer to a OMX_INDEXTYPE to receive the index value. 926 @return OMX_ERRORTYPE 927 If the command successfully executes, the return code will be 928 OMX_ErrorNone. Otherwise the appropriate OMX error will be returned. 929 @ingroup comp 930 */ 931#define OMX_GetExtensionIndex( \ 932 hComponent, \ 933 cParameterName, \ 934 pIndexType) \ 935 ((OMX_COMPONENTTYPE*)hComponent)->GetExtensionIndex( \ 936 hComponent, \ 937 cParameterName, \ 938 pIndexType) /* Macro End */ 939 940 941/** The OMX_GetState macro will invoke the component to get the current 942 state of the component and place the state value into the location 943 pointed to by pState. 944 945 The component should return from this call within 5 msec. 946 947 @param [in] hComponent 948 Handle of the component to be accessed. This is the component 949 handle returned by the call to the OMX_GetHandle function. 950 @param [out] pState 951 pointer to the location to receive the state. The value returned 952 is one of the OMX_STATETYPE members 953 @return OMX_ERRORTYPE 954 If the command successfully executes, the return code will be 955 OMX_ErrorNone. Otherwise the appropriate OMX error will be returned. 956 @ingroup comp 957 */ 958#define OMX_GetState( \ 959 hComponent, \ 960 pState) \ 961 ((OMX_COMPONENTTYPE*)hComponent)->GetState( \ 962 hComponent, \ 963 pState) /* Macro End */ 964 965 966/** The OMX_UseBuffer macro will request that the component use 967 a buffer (and allocate its own buffer header) already allocated 968 by another component, or by the IL Client. This is a blocking 969 call. 970 971 The component should return from this call within 20 msec. 972 973 @param [in] hComponent 974 Handle of the component to be accessed. This is the component 975 handle returned by the call to the OMX_GetHandle function. 976 @param [out] ppBuffer 977 pointer to an OMX_BUFFERHEADERTYPE structure used to receive the 978 pointer to the buffer header 979 @return OMX_ERRORTYPE 980 If the command successfully executes, the return code will be 981 OMX_ErrorNone. Otherwise the appropriate OMX error will be returned. 982 @ingroup comp buf 983 */ 984 985#define OMX_UseBuffer( \ 986 hComponent, \ 987 ppBufferHdr, \ 988 nPortIndex, \ 989 pAppPrivate, \ 990 nSizeBytes, \ 991 pBuffer) \ 992 ((OMX_COMPONENTTYPE*)hComponent)->UseBuffer( \ 993 hComponent, \ 994 ppBufferHdr, \ 995 nPortIndex, \ 996 pAppPrivate, \ 997 nSizeBytes, \ 998 pBuffer) 999 1000 1001/** The OMX_AllocateBuffer macro will request that the component allocate 1002 a new buffer and buffer header. The component will allocate the 1003 buffer and the buffer header and return a pointer to the buffer 1004 header. This is a blocking call. 1005 1006 The component should return from this call within 5 msec. 1007 1008 @param [in] hComponent 1009 Handle of the component to be accessed. This is the component 1010 handle returned by the call to the OMX_GetHandle function. 1011 @param [out] ppBuffer 1012 pointer to an OMX_BUFFERHEADERTYPE structure used to receive 1013 the pointer to the buffer header 1014 @param [in] nPortIndex 1015 nPortIndex is used to select the port on the component the buffer will 1016 be used with. The port can be found by using the nPortIndex 1017 value as an index into the Port Definition array of the component. 1018 @param [in] pAppPrivate 1019 pAppPrivate is used to initialize the pAppPrivate member of the 1020 buffer header structure. 1021 @param [in] nSizeBytes 1022 size of the buffer to allocate. Used when bAllocateNew is true. 1023 @return OMX_ERRORTYPE 1024 If the command successfully executes, the return code will be 1025 OMX_ErrorNone. Otherwise the appropriate OMX error will be returned. 1026 @ingroup comp buf 1027 */ 1028#define OMX_AllocateBuffer( \ 1029 hComponent, \ 1030 ppBuffer, \ 1031 nPortIndex, \ 1032 pAppPrivate, \ 1033 nSizeBytes) \ 1034 ((OMX_COMPONENTTYPE*)hComponent)->AllocateBuffer( \ 1035 hComponent, \ 1036 ppBuffer, \ 1037 nPortIndex, \ 1038 pAppPrivate, \ 1039 nSizeBytes) /* Macro End */ 1040 1041 1042/** The OMX_FreeBuffer macro will release a buffer header from the component 1043 which was allocated using either OMX_AllocateBuffer or OMX_UseBuffer. If 1044 the component allocated the buffer (see the OMX_UseBuffer macro) then 1045 the component shall free the buffer and buffer header. This is a 1046 blocking call. 1047 1048 The component should return from this call within 20 msec. 1049 1050 @param [in] hComponent 1051 Handle of the component to be accessed. This is the component 1052 handle returned by the call to the OMX_GetHandle function. 1053 @param [in] nPortIndex 1054 nPortIndex is used to select the port on the component the buffer will 1055 be used with. 1056 @param [in] pBuffer 1057 pointer to an OMX_BUFFERHEADERTYPE structure allocated with UseBuffer 1058 or AllocateBuffer. 1059 @return OMX_ERRORTYPE 1060 If the command successfully executes, the return code will be 1061 OMX_ErrorNone. Otherwise the appropriate OMX error will be returned. 1062 @ingroup comp buf 1063 */ 1064#define OMX_FreeBuffer( \ 1065 hComponent, \ 1066 nPortIndex, \ 1067 pBuffer) \ 1068 ((OMX_COMPONENTTYPE*)hComponent)->FreeBuffer( \ 1069 hComponent, \ 1070 nPortIndex, \ 1071 pBuffer) /* Macro End */ 1072 1073 1074/** The OMX_EmptyThisBuffer macro will send a buffer full of data to an 1075 input port of a component. The buffer will be emptied by the component 1076 and returned to the application via the EmptyBufferDone call back. 1077 This is a non-blocking call in that the component will record the buffer 1078 and return immediately and then empty the buffer, later, at the proper 1079 time. As expected, this macro may be invoked only while the component 1080 is in the OMX_StateExecuting. If nPortIndex does not specify an input 1081 port, the component shall return an error. 1082 1083 The component should return from this call within 5 msec. 1084 1085 @param [in] hComponent 1086 Handle of the component to be accessed. This is the component 1087 handle returned by the call to the OMX_GetHandle function. 1088 @param [in] pBuffer 1089 pointer to an OMX_BUFFERHEADERTYPE structure allocated with UseBuffer 1090 or AllocateBuffer. 1091 @return OMX_ERRORTYPE 1092 If the command successfully executes, the return code will be 1093 OMX_ErrorNone. Otherwise the appropriate OMX error will be returned. 1094 @ingroup comp buf 1095 */ 1096#define OMX_EmptyThisBuffer( \ 1097 hComponent, \ 1098 pBuffer) \ 1099 ((OMX_COMPONENTTYPE*)hComponent)->EmptyThisBuffer( \ 1100 hComponent, \ 1101 pBuffer) /* Macro End */ 1102 1103 1104/** The OMX_FillThisBuffer macro will send an empty buffer to an 1105 output port of a component. The buffer will be filled by the component 1106 and returned to the application via the FillBufferDone call back. 1107 This is a non-blocking call in that the component will record the buffer 1108 and return immediately and then fill the buffer, later, at the proper 1109 time. As expected, this macro may be invoked only while the component 1110 is in the OMX_ExecutingState. If nPortIndex does not specify an output 1111 port, the component shall return an error. 1112 1113 The component should return from this call within 5 msec. 1114 1115 @param [in] hComponent 1116 Handle of the component to be accessed. This is the component 1117 handle returned by the call to the OMX_GetHandle function. 1118 @param [in] pBuffer 1119 pointer to an OMX_BUFFERHEADERTYPE structure allocated with UseBuffer 1120 or AllocateBuffer. 1121 @return OMX_ERRORTYPE 1122 If the command successfully executes, the return code will be 1123 OMX_ErrorNone. Otherwise the appropriate OMX error will be returned. 1124 @ingroup comp buf 1125 */ 1126#define OMX_FillThisBuffer( \ 1127 hComponent, \ 1128 pBuffer) \ 1129 ((OMX_COMPONENTTYPE*)hComponent)->FillThisBuffer( \ 1130 hComponent, \ 1131 pBuffer) /* Macro End */ 1132 1133 1134 1135/** The OMX_UseEGLImage macro will request that the component use 1136 a EGLImage provided by EGL (and allocate its own buffer header) 1137 This is a blocking call. 1138 1139 The component should return from this call within 20 msec. 1140 1141 @param [in] hComponent 1142 Handle of the component to be accessed. This is the component 1143 handle returned by the call to the OMX_GetHandle function. 1144 @param [out] ppBuffer 1145 pointer to an OMX_BUFFERHEADERTYPE structure used to receive the 1146 pointer to the buffer header. Note that the memory location used 1147 for this buffer is NOT visible to the IL Client. 1148 @param [in] nPortIndex 1149 nPortIndex is used to select the port on the component the buffer will 1150 be used with. The port can be found by using the nPortIndex 1151 value as an index into the Port Definition array of the component. 1152 @param [in] pAppPrivate 1153 pAppPrivate is used to initialize the pAppPrivate member of the 1154 buffer header structure. 1155 @param [in] eglImage 1156 eglImage contains the handle of the EGLImage to use as a buffer on the 1157 specified port. The component is expected to validate properties of 1158 the EGLImage against the configuration of the port to ensure the component 1159 can use the EGLImage as a buffer. 1160 @return OMX_ERRORTYPE 1161 If the command successfully executes, the return code will be 1162 OMX_ErrorNone. Otherwise the appropriate OMX error will be returned. 1163 @ingroup comp buf 1164 */ 1165#define OMX_UseEGLImage( \ 1166 hComponent, \ 1167 ppBufferHdr, \ 1168 nPortIndex, \ 1169 pAppPrivate, \ 1170 eglImage) \ 1171 ((OMX_COMPONENTTYPE*)hComponent)->UseEGLImage( \ 1172 hComponent, \ 1173 ppBufferHdr, \ 1174 nPortIndex, \ 1175 pAppPrivate, \ 1176 eglImage) 1177 1178/** The OMX_Init method is used to initialize the OMX core. It shall be the 1179 first call made into OMX and it should only be executed one time without 1180 an interviening OMX_Deinit call. 1181 1182 The core should return from this call within 20 msec. 1183 1184 @return OMX_ERRORTYPE 1185 If the command successfully executes, the return code will be 1186 OMX_ErrorNone. Otherwise the appropriate OMX error will be returned. 1187 @ingroup core 1188 */ 1189OMX_API OMX_ERRORTYPE OMX_APIENTRY OMX_Init(void); 1190 1191 1192/** The OMX_Deinit method is used to deinitialize the OMX core. It shall be 1193 the last call made into OMX. In the event that the core determines that 1194 thare are components loaded when this call is made, the core may return 1195 with an error rather than try to unload the components. 1196 1197 The core should return from this call within 20 msec. 1198 1199 @return OMX_ERRORTYPE 1200 If the command successfully executes, the return code will be 1201 OMX_ErrorNone. Otherwise the appropriate OMX error will be returned. 1202 @ingroup core 1203 */ 1204OMX_API OMX_ERRORTYPE OMX_APIENTRY OMX_Deinit(void); 1205 1206 1207/** The OMX_ComponentNameEnum method will enumerate through all the names of 1208 recognised valid components in the system. This function is provided 1209 as a means to detect all the components in the system run-time. There is 1210 no strict ordering to the enumeration order of component names, although 1211 each name will only be enumerated once. If the OMX core supports run-time 1212 installation of new components, it is only requried to detect newly 1213 installed components when the first call to enumerate component names 1214 is made (i.e. when nIndex is 0x0). 1215 1216 The core should return from this call in 20 msec. 1217 1218 @param [out] cComponentName 1219 pointer to a null terminated string with the component name. The 1220 names of the components are strings less than 127 bytes in length 1221 plus the trailing null for a maximum size of 128 bytes. An example 1222 of a valid component name is "OMX.TI.AUDIO.DSP.MIXER\0". Names are 1223 assigned by the vendor, but shall start with "OMX." and then have 1224 the Vendor designation next. 1225 @param [in] nNameLength 1226 number of characters in the cComponentName string. With all 1227 component name strings restricted to less than 128 characters 1228 (including the trailing null) it is recomended that the caller 1229 provide a input string for the cComponentName of 128 characters. 1230 @param [in] nIndex 1231 number containing the enumeration index for the component. 1232 Multiple calls to OMX_ComponentNameEnum with increasing values 1233 of nIndex will enumerate through the component names in the 1234 system until OMX_ErrorNoMore is returned. The value of nIndex 1235 is 0 to (N-1), where N is the number of valid installed components 1236 in the system. 1237 @return OMX_ERRORTYPE 1238 If the command successfully executes, the return code will be 1239 OMX_ErrorNone. When the value of nIndex exceeds the number of 1240 components in the system minus 1, OMX_ErrorNoMore will be 1241 returned. Otherwise the appropriate OMX error will be returned. 1242 @ingroup core 1243 */ 1244OMX_API OMX_ERRORTYPE OMX_APIENTRY OMX_ComponentNameEnum( 1245 OMX_OUT OMX_STRING cComponentName, 1246 OMX_IN OMX_U32 nNameLength, 1247 OMX_IN OMX_U32 nIndex); 1248 1249 1250/** The OMX_GetHandle method will locate the component specified by the 1251 component name given, load that component into memory and then invoke 1252 the component's methods to create an instance of the component. 1253 1254 The core should return from this call within 20 msec. 1255 1256 @param [out] pHandle 1257 pointer to an OMX_HANDLETYPE pointer to be filled in by this method. 1258 @param [in] cComponentName 1259 pointer to a null terminated string with the component name. The 1260 names of the components are strings less than 127 bytes in length 1261 plus the trailing null for a maximum size of 128 bytes. An example 1262 of a valid component name is "OMX.TI.AUDIO.DSP.MIXER\0". Names are 1263 assigned by the vendor, but shall start with "OMX." and then have 1264 the Vendor designation next. 1265 @param [in] pAppData 1266 pointer to an application defined value that will be returned 1267 during callbacks so that the application can identify the source 1268 of the callback. 1269 @param [in] pCallBacks 1270 pointer to a OMX_CALLBACKTYPE structure that will be passed to the 1271 component to initialize it with. 1272 @return OMX_ERRORTYPE 1273 If the command successfully executes, the return code will be 1274 OMX_ErrorNone. Otherwise the appropriate OMX error will be returned. 1275 @ingroup core 1276 */ 1277OMX_API OMX_ERRORTYPE OMX_APIENTRY OMX_GetHandle( 1278 OMX_OUT OMX_HANDLETYPE* pHandle, 1279 OMX_IN OMX_STRING cComponentName, 1280 OMX_IN OMX_PTR pAppData, 1281 OMX_IN OMX_CALLBACKTYPE* pCallBacks); 1282 1283 1284/** The OMX_FreeHandle method will free a handle allocated by the OMX_GetHandle 1285 method. If the component reference count goes to zero, the component will 1286 be unloaded from memory. 1287 1288 The core should return from this call within 20 msec when the component is 1289 in the OMX_StateLoaded state. 1290 1291 @param [in] hComponent 1292 Handle of the component to be accessed. This is the component 1293 handle returned by the call to the GetHandle function. 1294 @return OMX_ERRORTYPE 1295 If the command successfully executes, the return code will be 1296 OMX_ErrorNone. Otherwise the appropriate OMX error will be returned. 1297 @ingroup core 1298 */ 1299OMX_API OMX_ERRORTYPE OMX_APIENTRY OMX_FreeHandle( 1300 OMX_IN OMX_HANDLETYPE hComponent); 1301 1302 1303 1304/** The OMX_SetupTunnel method will handle the necessary calls to the components 1305 to setup the specified tunnel the two components. NOTE: This is 1306 an actual method (not a #define macro). This method will make calls into 1307 the component ComponentTunnelRequest method to do the actual tunnel 1308 connection. 1309 1310 The ComponentTunnelRequest method on both components will be called. 1311 This method shall not be called unless the component is in the 1312 OMX_StateLoaded state except when the ports used for the tunnel are 1313 disabled. In this case, the component may be in the OMX_StateExecuting, 1314 OMX_StatePause, or OMX_StateIdle states. 1315 1316 The core should return from this call within 20 msec. 1317 1318 @param [in] hOutput 1319 Handle of the component to be accessed. Also this is the handle 1320 of the component whose port, specified in the nPortOutput parameter 1321 will be used the source for the tunnel. This is the component handle 1322 returned by the call to the OMX_GetHandle function. There is a 1323 requirement that hOutput be the source for the data when 1324 tunelling (i.e. nPortOutput is an output port). If 0x0, the component 1325 specified in hInput will have it's port specified in nPortInput 1326 setup for communication with the application / IL client. 1327 @param [in] nPortOutput 1328 nPortOutput is used to select the source port on component to be 1329 used in the tunnel. 1330 @param [in] hInput 1331 This is the component to setup the tunnel with. This is the handle 1332 of the component whose port, specified in the nPortInput parameter 1333 will be used the destination for the tunnel. This is the component handle 1334 returned by the call to the OMX_GetHandle function. There is a 1335 requirement that hInput be the destination for the data when 1336 tunelling (i.e. nPortInut is an input port). If 0x0, the component 1337 specified in hOutput will have it's port specified in nPortPOutput 1338 setup for communication with the application / IL client. 1339 @param [in] nPortInput 1340 nPortInput is used to select the destination port on component to be 1341 used in the tunnel. 1342 @return OMX_ERRORTYPE 1343 If the command successfully executes, the return code will be 1344 OMX_ErrorNone. Otherwise the appropriate OMX error will be returned. 1345 When OMX_ErrorNotImplemented is returned, one or both components is 1346 a non-interop component and does not support tunneling. 1347 1348 On failure, the ports of both components are setup for communication 1349 with the application / IL Client. 1350 @ingroup core tun 1351 */ 1352OMX_API OMX_ERRORTYPE OMX_APIENTRY OMX_SetupTunnel( 1353 OMX_IN OMX_HANDLETYPE hOutput, 1354 OMX_IN OMX_U32 nPortOutput, 1355 OMX_IN OMX_HANDLETYPE hInput, 1356 OMX_IN OMX_U32 nPortInput); 1357 1358/** @ingroup cp */ 1359OMX_API OMX_ERRORTYPE OMX_GetContentPipe( 1360 OMX_OUT OMX_HANDLETYPE *hPipe, 1361 OMX_IN OMX_STRING szURI); 1362 1363/** The OMX_GetComponentsOfRole method will return the number of components that support the given 1364 role and (if the compNames field is non-NULL) the names of those components. The call will fail if 1365 an insufficiently sized array of names is supplied. To ensure the array is sufficiently sized the 1366 client should: 1367 * first call this function with the compNames field NULL to determine the number of component names 1368 * second call this function with the compNames field pointing to an array of names allocated 1369 according to the number returned by the first call. 1370 1371 The core should return from this call within 5 msec. 1372 1373 @param [in] role 1374 This is generic standard component name consisting only of component class 1375 name and the type within that class (e.g. 'audio_decoder.aac'). 1376 @param [inout] pNumComps 1377 This is used both as input and output. 1378 1379 If compNames is NULL, the input is ignored and the output specifies how many components support 1380 the given role. 1381 1382 If compNames is not NULL, on input it bounds the size of the input structure and 1383 on output, it specifies the number of components string names listed within the compNames parameter. 1384 @param [inout] compNames 1385 If NULL this field is ignored. If non-NULL this points to an array of 128-byte strings which accepts 1386 a list of the names of all physical components that implement the specified standard component name. 1387 Each name is NULL terminated. numComps indicates the number of names. 1388 @ingroup core 1389 */ 1390OMX_API OMX_ERRORTYPE OMX_GetComponentsOfRole ( 1391 OMX_IN OMX_STRING role, 1392 OMX_INOUT OMX_U32 *pNumComps, 1393 OMX_INOUT OMX_U8 **compNames); 1394 1395/** The OMX_GetRolesOfComponent method will return the number of roles supported by the given 1396 component and (if the roles field is non-NULL) the names of those roles. The call will fail if 1397 an insufficiently sized array of names is supplied. To ensure the array is sufficiently sized the 1398 client should: 1399 * first call this function with the roles field NULL to determine the number of role names 1400 * second call this function with the roles field pointing to an array of names allocated 1401 according to the number returned by the first call. 1402 1403 The core should return from this call within 5 msec. 1404 1405 @param [in] compName 1406 This is the name of the component being queried about. 1407 @param [inout] pNumRoles 1408 This is used both as input and output. 1409 1410 If roles is NULL, the input is ignored and the output specifies how many roles the component supports. 1411 1412 If compNames is not NULL, on input it bounds the size of the input structure and 1413 on output, it specifies the number of roles string names listed within the roles parameter. 1414 @param [out] roles 1415 If NULL this field is ignored. If non-NULL this points to an array of 128-byte strings 1416 which accepts a list of the names of all standard components roles implemented on the 1417 specified component name. numComps indicates the number of names. 1418 @ingroup core 1419 */ 1420OMX_API OMX_ERRORTYPE OMX_GetRolesOfComponent ( 1421 OMX_IN OMX_STRING compName, 1422 OMX_INOUT OMX_U32 *pNumRoles, 1423 OMX_OUT OMX_U8 **roles); 1424 1425#ifdef __cplusplus 1426} 1427#endif /* __cplusplus */ 1428 1429#endif 1430/* File EOF */ 1431 1432