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_Component.h - OpenMax IL version 1.1.2
25  *  The OMX_Component header file contains the definitions used to define
26  *  the public interface of a component.  This header file is intended to
27  *  be used by both the application and the component.
28  */
29 
30 #ifndef OMX_Component_h
31 #define OMX_Component_h
32 
33 #ifdef __cplusplus
34 extern "C" {
35 #endif /* __cplusplus */
36 
37 
38 
39 /* Each OMX header must include all required header files to allow the
40  *  header to compile without errors.  The includes below are required
41  *  for this header file to compile successfully
42  */
43 
44 #include <OMX_Audio.h>
45 #include <OMX_Video.h>
46 #include <OMX_Image.h>
47 #include <OMX_Other.h>
48 
49 /** @ingroup comp */
50 typedef enum OMX_PORTDOMAINTYPE {
51     OMX_PortDomainAudio,
52     OMX_PortDomainVideo,
53     OMX_PortDomainImage,
54     OMX_PortDomainOther,
55     OMX_PortDomainKhronosExtensions = 0x6F000000, /**< Reserved region for introducing Khronos Standard Extensions */
56     OMX_PortDomainVendorStartUnused = 0x7F000000, /**< Reserved region for introducing Vendor Extensions */
57     OMX_PortDomainMax = 0x7ffffff
58 } OMX_PORTDOMAINTYPE;
59 
60 /** @ingroup comp */
61 typedef struct OMX_PARAM_PORTDEFINITIONTYPE {
62     OMX_U32 nSize;                 /**< Size of the structure in bytes */
63     OMX_VERSIONTYPE nVersion;      /**< OMX specification version information */
64     OMX_U32 nPortIndex;            /**< Port number the structure applies to */
65     OMX_DIRTYPE eDir;              /**< Direction (input or output) of this port */
66     OMX_U32 nBufferCountActual;    /**< The actual number of buffers allocated on this port */
67     OMX_U32 nBufferCountMin;       /**< The minimum number of buffers this port requires */
68     OMX_U32 nBufferSize;           /**< Size, in bytes, for buffers to be used for this channel */
69     OMX_BOOL bEnabled;             /**< Ports default to enabled and are enabled/disabled by
70                                         OMX_CommandPortEnable/OMX_CommandPortDisable.
71                                         When disabled a port is unpopulated. A disabled port
72                                         is not populated with buffers on a transition to IDLE. */
73     OMX_BOOL bPopulated;           /**< Port is populated with all of its buffers as indicated by
74                                         nBufferCountActual. A disabled port is always unpopulated.
75                                         An enabled port is populated on a transition to OMX_StateIdle
76                                         and unpopulated on a transition to loaded. */
77     OMX_PORTDOMAINTYPE eDomain;    /**< Domain of the port. Determines the contents of metadata below. */
78     union {
79         OMX_AUDIO_PORTDEFINITIONTYPE audio;
80         OMX_VIDEO_PORTDEFINITIONTYPE video;
81         OMX_IMAGE_PORTDEFINITIONTYPE image;
82         OMX_OTHER_PORTDEFINITIONTYPE other;
83     } format;
84     OMX_BOOL bBuffersContiguous;
85     OMX_U32 nBufferAlignment;
86 } OMX_PARAM_PORTDEFINITIONTYPE;
87 
88 /** @ingroup comp */
89 typedef struct OMX_PARAM_U32TYPE {
90     OMX_U32 nSize;                    /**< Size of this structure, in Bytes */
91     OMX_VERSIONTYPE nVersion;         /**< OMX specification version information */
92     OMX_U32 nPortIndex;               /**< port that this structure applies to */
93     OMX_U32 nU32;                     /**< U32 value */
94 } OMX_PARAM_U32TYPE;
95 
96 /** @ingroup rpm */
97 typedef enum OMX_SUSPENSIONPOLICYTYPE {
98     OMX_SuspensionDisabled, /**< No suspension; v1.0 behavior */
99     OMX_SuspensionEnabled,  /**< Suspension allowed */
100     OMX_SuspensionPolicyKhronosExtensions = 0x6F000000, /**< Reserved region for introducing Khronos Standard Extensions */
101     OMX_SuspensionPolicyStartUnused = 0x7F000000, /**< Reserved region for introducing Vendor Extensions */
102     OMX_SuspensionPolicyMax = 0x7fffffff
103 } OMX_SUSPENSIONPOLICYTYPE;
104 
105 /** @ingroup rpm */
106 typedef struct OMX_PARAM_SUSPENSIONPOLICYTYPE {
107     OMX_U32 nSize;
108     OMX_VERSIONTYPE nVersion;
109     OMX_SUSPENSIONPOLICYTYPE ePolicy;
110 } OMX_PARAM_SUSPENSIONPOLICYTYPE;
111 
112 /** @ingroup rpm */
113 typedef enum OMX_SUSPENSIONTYPE {
114     OMX_NotSuspended, /**< component is not suspended */
115     OMX_Suspended,    /**< component is suspended */
116     OMX_SuspensionKhronosExtensions = 0x6F000000, /**< Reserved region for introducing Khronos Standard Extensions */
117     OMX_SuspensionVendorStartUnused = 0x7F000000, /**< Reserved region for introducing Vendor Extensions */
118     OMX_SuspendMax = 0x7FFFFFFF
119 } OMX_SUSPENSIONTYPE;
120 
121 /** @ingroup rpm */
122 typedef struct OMX_PARAM_SUSPENSIONTYPE {
123     OMX_U32 nSize;
124     OMX_VERSIONTYPE nVersion;
125     OMX_SUSPENSIONTYPE eType;
126 } OMX_PARAM_SUSPENSIONTYPE ;
127 
128 typedef struct OMX_CONFIG_BOOLEANTYPE {
129     OMX_U32 nSize;
130     OMX_VERSIONTYPE nVersion;
131     OMX_BOOL bEnabled;
132 } OMX_CONFIG_BOOLEANTYPE;
133 
134 /* Parameter specifying the content uri to use. */
135 /** @ingroup cp */
136 typedef struct OMX_PARAM_CONTENTURITYPE
137 {
138     OMX_U32 nSize;                      /**< size of the structure in bytes, including
139                                              actual URI name */
140     OMX_VERSIONTYPE nVersion;           /**< OMX specification version information */
141     OMX_U8 contentURI[1];               /**< The URI name */
142 } OMX_PARAM_CONTENTURITYPE;
143 
144 /* Parameter specifying the pipe to use. */
145 /** @ingroup cp */
146 typedef struct OMX_PARAM_CONTENTPIPETYPE
147 {
148     OMX_U32 nSize;              /**< size of the structure in bytes */
149     OMX_VERSIONTYPE nVersion;   /**< OMX specification version information */
150     OMX_HANDLETYPE hPipe;       /**< The pipe handle*/
151 } OMX_PARAM_CONTENTPIPETYPE;
152 
153 /** @ingroup rpm */
154 typedef struct OMX_RESOURCECONCEALMENTTYPE {
155     OMX_U32 nSize;             /**< size of the structure in bytes */
156     OMX_VERSIONTYPE nVersion;  /**< OMX specification version information */
157     OMX_BOOL bResourceConcealmentForbidden; /**< disallow the use of resource concealment
158                                             methods (like degrading algorithm quality to
159                                             lower resource consumption or functional bypass)
160                                             on a component as a resolution to resource conflicts. */
161 } OMX_RESOURCECONCEALMENTTYPE;
162 
163 
164 /** @ingroup metadata */
165 typedef enum OMX_METADATACHARSETTYPE {
166     OMX_MetadataCharsetUnknown = 0,
167     OMX_MetadataCharsetASCII,
168     OMX_MetadataCharsetBinary,
169     OMX_MetadataCharsetCodePage1252,
170     OMX_MetadataCharsetUTF8,
171     OMX_MetadataCharsetJavaConformantUTF8,
172     OMX_MetadataCharsetUTF7,
173     OMX_MetadataCharsetImapUTF7,
174     OMX_MetadataCharsetUTF16LE,
175     OMX_MetadataCharsetUTF16BE,
176     OMX_MetadataCharsetGB12345,
177     OMX_MetadataCharsetHZGB2312,
178     OMX_MetadataCharsetGB2312,
179     OMX_MetadataCharsetGB18030,
180     OMX_MetadataCharsetGBK,
181     OMX_MetadataCharsetBig5,
182     OMX_MetadataCharsetISO88591,
183     OMX_MetadataCharsetISO88592,
184     OMX_MetadataCharsetISO88593,
185     OMX_MetadataCharsetISO88594,
186     OMX_MetadataCharsetISO88595,
187     OMX_MetadataCharsetISO88596,
188     OMX_MetadataCharsetISO88597,
189     OMX_MetadataCharsetISO88598,
190     OMX_MetadataCharsetISO88599,
191     OMX_MetadataCharsetISO885910,
192     OMX_MetadataCharsetISO885913,
193     OMX_MetadataCharsetISO885914,
194     OMX_MetadataCharsetISO885915,
195     OMX_MetadataCharsetShiftJIS,
196     OMX_MetadataCharsetISO2022JP,
197     OMX_MetadataCharsetISO2022JP1,
198     OMX_MetadataCharsetISOEUCJP,
199     OMX_MetadataCharsetSMS7Bit,
200     OMX_MetadataCharsetKhronosExtensions = 0x6F000000, /**< Reserved region for introducing Khronos Standard Extensions */
201     OMX_MetadataCharsetVendorStartUnused = 0x7F000000, /**< Reserved region for introducing Vendor Extensions */
202     OMX_MetadataCharsetTypeMax= 0x7FFFFFFF
203 } OMX_METADATACHARSETTYPE;
204 
205 /** @ingroup metadata */
206 typedef enum OMX_METADATASCOPETYPE
207 {
208     OMX_MetadataScopeAllLevels,
209     OMX_MetadataScopeTopLevel,
210     OMX_MetadataScopePortLevel,
211     OMX_MetadataScopeNodeLevel,
212     OMX_MetadataScopeKhronosExtensions = 0x6F000000, /**< Reserved region for introducing Khronos Standard Extensions */
213     OMX_MetadataScopeVendorStartUnused = 0x7F000000, /**< Reserved region for introducing Vendor Extensions */
214     OMX_MetadataScopeTypeMax = 0x7fffffff
215 } OMX_METADATASCOPETYPE;
216 
217 /** @ingroup metadata */
218 typedef enum OMX_METADATASEARCHMODETYPE
219 {
220     OMX_MetadataSearchValueSizeByIndex,
221     OMX_MetadataSearchItemByIndex,
222     OMX_MetadataSearchNextItemByKey,
223     OMX_MetadataSearchKhronosExtensions = 0x6F000000, /**< Reserved region for introducing Khronos Standard Extensions */
224     OMX_MetadataSearchVendorStartUnused = 0x7F000000, /**< Reserved region for introducing Vendor Extensions */
225     OMX_MetadataSearchTypeMax = 0x7fffffff
226 } OMX_METADATASEARCHMODETYPE;
227 /** @ingroup metadata */
228 typedef struct OMX_CONFIG_METADATAITEMCOUNTTYPE
229 {
230     OMX_U32 nSize;
231     OMX_VERSIONTYPE nVersion;
232     OMX_METADATASCOPETYPE eScopeMode;
233     OMX_U32 nScopeSpecifier;
234     OMX_U32 nMetadataItemCount;
235 } OMX_CONFIG_METADATAITEMCOUNTTYPE;
236 
237 /** @ingroup metadata */
238 typedef struct OMX_CONFIG_METADATAITEMTYPE
239 {
240     OMX_U32 nSize;
241     OMX_VERSIONTYPE nVersion;
242     OMX_METADATASCOPETYPE eScopeMode;
243     OMX_U32 nScopeSpecifier;
244     OMX_U32 nMetadataItemIndex;
245     OMX_METADATASEARCHMODETYPE eSearchMode;
246     OMX_METADATACHARSETTYPE eKeyCharset;
247     OMX_U8 nKeySizeUsed;
248     OMX_U8 nKey[128];
249     OMX_METADATACHARSETTYPE eValueCharset;
250     OMX_STRING sLanguageCountry;
251     OMX_U32 nValueMaxSize;
252     OMX_U32 nValueSizeUsed;
253     OMX_U8 nValue[1];
254 } OMX_CONFIG_METADATAITEMTYPE;
255 
256 /* @ingroup metadata */
257 typedef struct OMX_CONFIG_CONTAINERNODECOUNTTYPE
258 {
259     OMX_U32 nSize;
260     OMX_VERSIONTYPE nVersion;
261     OMX_BOOL bAllKeys;
262     OMX_U32 nParentNodeID;
263     OMX_U32 nNumNodes;
264 } OMX_CONFIG_CONTAINERNODECOUNTTYPE;
265 
266 /** @ingroup metadata */
267 typedef struct OMX_CONFIG_CONTAINERNODEIDTYPE
268 {
269     OMX_U32 nSize;
270     OMX_VERSIONTYPE nVersion;
271     OMX_BOOL bAllKeys;
272     OMX_U32 nParentNodeID;
273     OMX_U32 nNodeIndex;
274     OMX_U32 nNodeID;
275     OMX_STRING cNodeName;
276     OMX_BOOL bIsLeafType;
277 } OMX_CONFIG_CONTAINERNODEIDTYPE;
278 
279 /** @ingroup metadata */
280 typedef struct OMX_PARAM_METADATAFILTERTYPE
281 {
282     OMX_U32 nSize;
283     OMX_VERSIONTYPE nVersion;
284     OMX_BOOL bAllKeys;	/* if true then this structure refers to all keys and
285                          * the three key fields below are ignored */
286     OMX_METADATACHARSETTYPE eKeyCharset;
287     OMX_U32 nKeySizeUsed;
288     OMX_U8   nKey [128];
289     OMX_U32 nLanguageCountrySizeUsed;
290     OMX_U8 nLanguageCountry[128];
291     OMX_BOOL bEnabled;	/* if true then key is part of filter (e.g.
292                          * retained for query later). If false then
293                          * key is not part of filter */
294 } OMX_PARAM_METADATAFILTERTYPE;
295 
296 /** The OMX_HANDLETYPE structure defines the component handle.  The component
297  *  handle is used to access all of the component's public methods and also
298  *  contains pointers to the component's private data area.  The component
299  *  handle is initialized by the OMX core (with help from the component)
300  *  during the process of loading the component.  After the component is
301  *  successfully loaded, the application can safely access any of the
302  *  component's public functions (although some may return an error because
303  *  the state is inappropriate for the access).
304  *
305  *  @ingroup comp
306  */
307 typedef struct OMX_COMPONENTTYPE
308 {
309     /** The size of this structure, in bytes.  It is the responsibility
310         of the allocator of this structure to fill in this value.  Since
311         this structure is allocated by the GetHandle function, this
312         function will fill in this value. */
313     OMX_U32 nSize;
314 
315     /** nVersion is the version of the OMX specification that the structure
316         is built against.  It is the responsibility of the creator of this
317         structure to initialize this value and every user of this structure
318         should verify that it knows how to use the exact version of
319         this structure found herein. */
320     OMX_VERSIONTYPE nVersion;
321 
322     /** pComponentPrivate is a pointer to the component private data area.
323         This member is allocated and initialized by the component when the
324         component is first loaded.  The application should not access this
325         data area. */
326     OMX_PTR pComponentPrivate;
327 
328     /** pApplicationPrivate is a pointer that is a parameter to the
329         OMX_GetHandle method, and contains an application private value
330         provided by the IL client.  This application private data is
331         returned to the IL Client by OMX in all callbacks */
332     OMX_PTR pApplicationPrivate;
333 
334     /** refer to OMX_GetComponentVersion in OMX_core.h or the OMX IL
335         specification for details on the GetComponentVersion method.
336      */
337     OMX_ERRORTYPE (*GetComponentVersion)(
338             OMX_IN  OMX_HANDLETYPE hComponent,
339             OMX_OUT OMX_STRING pComponentName,
340             OMX_OUT OMX_VERSIONTYPE* pComponentVersion,
341             OMX_OUT OMX_VERSIONTYPE* pSpecVersion,
342             OMX_OUT OMX_UUIDTYPE* pComponentUUID);
343 
344     /** refer to OMX_SendCommand in OMX_core.h or the OMX IL
345         specification for details on the SendCommand method.
346      */
347     OMX_ERRORTYPE (*SendCommand)(
348             OMX_IN  OMX_HANDLETYPE hComponent,
349             OMX_IN  OMX_COMMANDTYPE Cmd,
350             OMX_IN  OMX_U32 nParam1,
351             OMX_IN  OMX_PTR pCmdData);
352 
353     /** refer to OMX_GetParameter in OMX_core.h or the OMX IL
354         specification for details on the GetParameter method.
355      */
356     OMX_ERRORTYPE (*GetParameter)(
357             OMX_IN  OMX_HANDLETYPE hComponent,
358             OMX_IN  OMX_INDEXTYPE nParamIndex,
359             OMX_INOUT OMX_PTR pComponentParameterStructure);
360 
361 
362     /** refer to OMX_SetParameter in OMX_core.h or the OMX IL
363         specification for details on the SetParameter method.
364      */
365     OMX_ERRORTYPE (*SetParameter)(
366             OMX_IN  OMX_HANDLETYPE hComponent,
367             OMX_IN  OMX_INDEXTYPE nIndex,
368             OMX_IN  OMX_PTR pComponentParameterStructure);
369 
370 
371     /** refer to OMX_GetConfig in OMX_core.h or the OMX IL
372         specification for details on the GetConfig method.
373      */
374     OMX_ERRORTYPE (*GetConfig)(
375             OMX_IN  OMX_HANDLETYPE hComponent,
376             OMX_IN  OMX_INDEXTYPE nIndex,
377             OMX_INOUT OMX_PTR pComponentConfigStructure);
378 
379 
380     /** refer to OMX_SetConfig in OMX_core.h or the OMX IL
381         specification for details on the SetConfig method.
382      */
383     OMX_ERRORTYPE (*SetConfig)(
384             OMX_IN  OMX_HANDLETYPE hComponent,
385             OMX_IN  OMX_INDEXTYPE nIndex,
386             OMX_IN  OMX_PTR pComponentConfigStructure);
387 
388 
389     /** refer to OMX_GetExtensionIndex in OMX_core.h or the OMX IL
390         specification for details on the GetExtensionIndex method.
391      */
392     OMX_ERRORTYPE (*GetExtensionIndex)(
393             OMX_IN  OMX_HANDLETYPE hComponent,
394             OMX_IN  OMX_STRING cParameterName,
395             OMX_OUT OMX_INDEXTYPE* pIndexType);
396 
397 
398     /** refer to OMX_GetState in OMX_core.h or the OMX IL
399         specification for details on the GetState method.
400      */
401     OMX_ERRORTYPE (*GetState)(
402             OMX_IN  OMX_HANDLETYPE hComponent,
403             OMX_OUT OMX_STATETYPE* pState);
404 
405 
406     /** The ComponentTunnelRequest method will interact with another OMX
407         component to determine if tunneling is possible and to setup the
408         tunneling.  The return codes for this method can be used to
409         determine if tunneling is not possible, or if tunneling is not
410         supported.
411 
412         Base profile components (i.e. non-interop) do not support this
413         method and should return OMX_ErrorNotImplemented
414 
415         The interop profile component MUST support tunneling to another
416         interop profile component with a compatible port parameters.
417         A component may also support proprietary communication.
418 
419         If proprietary communication is supported the negotiation of
420         proprietary communication is done outside of OMX in a vendor
421         specific way. It is only required that the proper result be
422         returned and the details of how the setup is done is left
423         to the component implementation.
424 
425         When this method is invoked when nPort in an output port, the
426         component will:
427         1.  Populate the pTunnelSetup structure with the output port's
428             requirements and constraints for the tunnel.
429 
430         When this method is invoked when nPort in an input port, the
431         component will:
432         1.  Query the necessary parameters from the output port to
433             determine if the ports are compatible for tunneling
434         2.  If the ports are compatible, the component should store
435             the tunnel step provided by the output port
436         3.  Determine which port (either input or output) is the buffer
437             supplier, and call OMX_SetParameter on the output port to
438             indicate this selection.
439 
440         The component will return from this call within 5 msec.
441 
442         @param [in] hComp
443             Handle of the component to be accessed.  This is the component
444             handle returned by the call to the OMX_GetHandle method.
445         @param [in] nPort
446             nPort is used to select the port on the component to be used
447             for tunneling.
448         @param [in] hTunneledComp
449             Handle of the component to tunnel with.  This is the component
450             handle returned by the call to the OMX_GetHandle method.  When
451             this parameter is 0x0 the component should setup the port for
452             communication with the application / IL Client.
453         @param [in] nPortOutput
454             nPortOutput is used indicate the port the component should
455             tunnel with.
456         @param [in] pTunnelSetup
457             Pointer to the tunnel setup structure.  When nPort is an output port
458             the component should populate the fields of this structure.  When
459             When nPort is an input port the component should review the setup
460             provided by the component with the output port.
461         @return OMX_ERRORTYPE
462             If the command successfully executes, the return code will be
463             OMX_ErrorNone.  Otherwise the appropriate OMX error will be returned.
464         @ingroup tun
465     */
466 
467     OMX_ERRORTYPE (*ComponentTunnelRequest)(
468         OMX_IN  OMX_HANDLETYPE hComp,
469         OMX_IN  OMX_U32 nPort,
470         OMX_IN  OMX_HANDLETYPE hTunneledComp,
471         OMX_IN  OMX_U32 nTunneledPort,
472         OMX_INOUT  OMX_TUNNELSETUPTYPE* pTunnelSetup);
473 
474     /** refer to OMX_UseBuffer in OMX_core.h or the OMX IL
475         specification for details on the UseBuffer method.
476         @ingroup buf
477      */
478     OMX_ERRORTYPE (*UseBuffer)(
479             OMX_IN OMX_HANDLETYPE hComponent,
480             OMX_INOUT OMX_BUFFERHEADERTYPE** ppBufferHdr,
481             OMX_IN OMX_U32 nPortIndex,
482             OMX_IN OMX_PTR pAppPrivate,
483             OMX_IN OMX_U32 nSizeBytes,
484             OMX_IN OMX_U8* pBuffer);
485 
486     /** refer to OMX_AllocateBuffer in OMX_core.h or the OMX IL
487         specification for details on the AllocateBuffer method.
488         @ingroup buf
489      */
490     OMX_ERRORTYPE (*AllocateBuffer)(
491             OMX_IN OMX_HANDLETYPE hComponent,
492             OMX_INOUT OMX_BUFFERHEADERTYPE** ppBuffer,
493             OMX_IN OMX_U32 nPortIndex,
494             OMX_IN OMX_PTR pAppPrivate,
495             OMX_IN OMX_U32 nSizeBytes);
496 
497     /** refer to OMX_FreeBuffer in OMX_core.h or the OMX IL
498         specification for details on the FreeBuffer method.
499         @ingroup buf
500      */
501     OMX_ERRORTYPE (*FreeBuffer)(
502             OMX_IN  OMX_HANDLETYPE hComponent,
503             OMX_IN  OMX_U32 nPortIndex,
504             OMX_IN  OMX_BUFFERHEADERTYPE* pBuffer);
505 
506     /** refer to OMX_EmptyThisBuffer in OMX_core.h or the OMX IL
507         specification for details on the EmptyThisBuffer method.
508         @ingroup buf
509      */
510     OMX_ERRORTYPE (*EmptyThisBuffer)(
511             OMX_IN  OMX_HANDLETYPE hComponent,
512             OMX_IN  OMX_BUFFERHEADERTYPE* pBuffer);
513 
514     /** refer to OMX_FillThisBuffer in OMX_core.h or the OMX IL
515         specification for details on the FillThisBuffer method.
516         @ingroup buf
517      */
518     OMX_ERRORTYPE (*FillThisBuffer)(
519             OMX_IN  OMX_HANDLETYPE hComponent,
520             OMX_IN  OMX_BUFFERHEADERTYPE* pBuffer);
521 
522     /** The SetCallbacks method is used by the core to specify the callback
523         structure from the application to the component.  This is a blocking
524         call.  The component will return from this call within 5 msec.
525         @param [in] hComponent
526             Handle of the component to be accessed.  This is the component
527             handle returned by the call to the GetHandle function.
528         @param [in] pCallbacks
529             pointer to an OMX_CALLBACKTYPE structure used to provide the
530             callback information to the component
531         @param [in] pAppData
532             pointer to an application defined value.  It is anticipated that
533             the application will pass a pointer to a data structure or a "this
534             pointer" in this area to allow the callback (in the application)
535             to determine the context of the call
536         @return OMX_ERRORTYPE
537             If the command successfully executes, the return code will be
538             OMX_ErrorNone.  Otherwise the appropriate OMX error will be returned.
539      */
540     OMX_ERRORTYPE (*SetCallbacks)(
541             OMX_IN  OMX_HANDLETYPE hComponent,
542             OMX_IN  OMX_CALLBACKTYPE* pCallbacks,
543             OMX_IN  OMX_PTR pAppData);
544 
545     /** ComponentDeInit method is used to deinitialize the component
546         providing a means to free any resources allocated at component
547         initialization.  NOTE:  After this call the component handle is
548         not valid for further use.
549         @param [in] hComponent
550             Handle of the component to be accessed.  This is the component
551             handle returned by the call to the GetHandle function.
552         @return OMX_ERRORTYPE
553             If the command successfully executes, the return code will be
554             OMX_ErrorNone.  Otherwise the appropriate OMX error will be returned.
555      */
556     OMX_ERRORTYPE (*ComponentDeInit)(
557             OMX_IN  OMX_HANDLETYPE hComponent);
558 
559     /** @ingroup buf */
560     OMX_ERRORTYPE (*UseEGLImage)(
561             OMX_IN OMX_HANDLETYPE hComponent,
562             OMX_INOUT OMX_BUFFERHEADERTYPE** ppBufferHdr,
563             OMX_IN OMX_U32 nPortIndex,
564             OMX_IN OMX_PTR pAppPrivate,
565             OMX_IN void* eglImage);
566 
567     OMX_ERRORTYPE (*ComponentRoleEnum)(
568         OMX_IN OMX_HANDLETYPE hComponent,
569 		OMX_OUT OMX_U8 *cRole,
570 		OMX_IN OMX_U32 nIndex);
571 
572 } OMX_COMPONENTTYPE;
573 
574 #ifdef __cplusplus
575 }
576 #endif /* __cplusplus */
577 
578 #endif
579 /* File EOF */
580