componentbase.cpp revision 3f6f9d1b2070cf81bcdf3b423cd77b6b4ff799e0 
1/*
2 * Copyright (C) 2009 Wind River Systems.
3 */
4
5#include <stdlib.h>
6#include <string.h>
7
8#include <pthread.h>
9
10#include <OMX_Core.h>
11#include <OMX_Component.h>
12
13#include <componentbase.h>
14
15#include <queue.h>
16#include <workqueue.h>
17
18#define LOG_TAG "componentbase"
19#include <log.h>
20
21/*
22 * CmdProcessWork
23 */
24CmdProcessWork::CmdProcessWork(CmdHandlerInterface *ci)
25{
26    this->ci = ci;
27
28    workq = new WorkQueue;
29
30    __queue_init(&q);
31    pthread_mutex_init(&lock, NULL);
32
33    workq->StartWork();
34}
35
36CmdProcessWork::~CmdProcessWork()
37{
38    workq->StopWork();
39    delete workq;
40
41    pthread_mutex_lock(&lock);
42    queue_free_all(&q);
43    pthread_mutex_unlock(&lock);
44
45    pthread_mutex_destroy(&lock);
46}
47
48OMX_ERRORTYPE CmdProcessWork::PushCmdQueue(struct cmd_s *cmd)
49{
50    int ret;
51
52    pthread_mutex_lock(&lock);
53    ret = queue_push_tail(&q, cmd);
54    if (ret) {
55        pthread_mutex_unlock(&lock);
56        return OMX_ErrorInsufficientResources;
57    }
58
59    workq->ScheduleWork(this);
60    pthread_mutex_unlock(&lock);
61
62    return OMX_ErrorNone;
63}
64
65struct cmd_s *CmdProcessWork::PopCmdQueue(void)
66{
67    struct cmd_s *cmd;
68
69    pthread_mutex_lock(&lock);
70    cmd = (struct cmd_s *)queue_pop_head(&q);
71    pthread_mutex_unlock(&lock);
72
73    return cmd;
74}
75
76void CmdProcessWork::ScheduleIfAvailable(void)
77{
78    bool avail;
79
80    pthread_mutex_lock(&lock);
81    avail = queue_length(&q) ? true : false;
82    pthread_mutex_unlock(&lock);
83
84    if (avail)
85        workq->ScheduleWork(this);
86}
87
88void CmdProcessWork::Work(void)
89{
90    struct cmd_s *cmd;
91
92    cmd = PopCmdQueue();
93    if (cmd) {
94        ci->CmdHandler(cmd);
95        free(cmd);
96    }
97    ScheduleIfAvailable();
98}
99
100/* end of CmdProcessWork */
101
102/*
103 * ComponentBase
104 */
105/*
106 * constructor & destructor
107 */
108void ComponentBase::__ComponentBase(void)
109{
110    memset(name, 0, OMX_MAX_STRINGNAME_SIZE);
111    cmodule = NULL;
112    handle = NULL;
113
114    roles = NULL;
115    nr_roles = 0;
116
117    working_role = NULL;
118
119    ports = NULL;
120    nr_ports = 0;
121    memset(&portparam, 0, sizeof(portparam));
122
123    state = OMX_StateUnloaded;
124
125    cmdwork = new CmdProcessWork(this);
126
127    executing = false;
128    pthread_mutex_init(&executing_lock, NULL);
129    pthread_cond_init(&executing_wait, NULL);
130
131    bufferwork = new WorkQueue();
132
133    pthread_mutex_init(&ports_block, NULL);
134}
135
136ComponentBase::ComponentBase()
137{
138    __ComponentBase();
139}
140
141ComponentBase::ComponentBase(const OMX_STRING name)
142{
143    __ComponentBase();
144    SetName(name);
145}
146
147ComponentBase::~ComponentBase()
148{
149    delete cmdwork;
150
151    delete bufferwork;
152    pthread_mutex_destroy(&executing_lock);
153    pthread_cond_destroy(&executing_wait);
154
155    pthread_mutex_destroy(&ports_block);
156
157    if (roles) {
158        OMX_U32 i;
159
160        for (i = 0; i < nr_roles; i++)
161            free(roles[i]);
162
163        free(roles);
164    }
165}
166
167/* end of constructor & destructor */
168
169/*
170 * accessor
171 */
172/* name */
173void ComponentBase::SetName(const OMX_STRING name)
174{
175    strncpy(this->name, name, OMX_MAX_STRINGNAME_SIZE);
176    this->name[OMX_MAX_STRINGNAME_SIZE-1] = '\0';
177}
178
179const OMX_STRING ComponentBase::GetName(void)
180{
181    return name;
182}
183
184/* component module */
185void ComponentBase::SetCModule(CModule *cmodule)
186{
187    this->cmodule = cmodule;
188}
189
190CModule *ComponentBase::GetCModule(void)
191{
192    return cmodule;
193}
194
195/* end of accessor */
196
197/*
198 * core methods & helpers
199 */
200/* roles */
201OMX_ERRORTYPE ComponentBase::SetRolesOfComponent(OMX_U32 nr_roles,
202                                                 const OMX_U8 **roles)
203{
204    OMX_U32 i;
205
206    if (!roles || !nr_roles)
207        return OMX_ErrorBadParameter;
208
209    if (this->roles) {
210        free(this->roles[0]);
211        free(this->roles);
212        this->roles = NULL;
213    }
214
215    this->roles = (OMX_U8 **)malloc(sizeof(OMX_STRING) * nr_roles);
216    if (!this->roles)
217        return OMX_ErrorInsufficientResources;
218
219    this->roles[0] = (OMX_U8 *)malloc(OMX_MAX_STRINGNAME_SIZE);
220    if (!this->roles) {
221        free(this->roles);
222        this->roles = NULL;
223        return OMX_ErrorInsufficientResources;
224    }
225
226    for (i = 0; i < nr_roles; i++) {
227        if (i < nr_roles-1)
228            this->roles[i+1] = this->roles[i] + OMX_MAX_STRINGNAME_SIZE;
229
230        strncpy((OMX_STRING)&this->roles[i][0],
231                (const OMX_STRING)&roles[i][0], OMX_MAX_STRINGNAME_SIZE);
232    }
233
234    this->nr_roles = nr_roles;
235    return OMX_ErrorNone;
236}
237
238/* GetHandle & FreeHandle */
239OMX_ERRORTYPE ComponentBase::GetHandle(OMX_HANDLETYPE *pHandle,
240                                       OMX_PTR pAppData,
241                                       OMX_CALLBACKTYPE *pCallBacks)
242{
243    OMX_U32 i;
244    OMX_ERRORTYPE ret;
245
246    if (handle)
247        return OMX_ErrorUndefined;
248
249    handle = (OMX_COMPONENTTYPE *)calloc(1, sizeof(*handle));
250    if (!handle)
251        return OMX_ErrorInsufficientResources;
252
253    /* handle initialization */
254    SetTypeHeader(handle, sizeof(*handle));
255    handle->pComponentPrivate = static_cast<OMX_PTR>(this);
256    handle->pApplicationPrivate = pAppData;
257
258    /* connect handle's functions */
259    handle->GetComponentVersion = GetComponentVersion;
260    handle->SendCommand = SendCommand;
261    handle->GetParameter = GetParameter;
262    handle->SetParameter = SetParameter;
263    handle->GetConfig = GetConfig;
264    handle->SetConfig = SetConfig;
265    handle->GetExtensionIndex = GetExtensionIndex;
266    handle->GetState = GetState;
267    handle->ComponentTunnelRequest = ComponentTunnelRequest;
268    handle->UseBuffer = UseBuffer;
269    handle->AllocateBuffer = AllocateBuffer;
270    handle->FreeBuffer = FreeBuffer;
271    handle->EmptyThisBuffer = EmptyThisBuffer;
272    handle->FillThisBuffer = FillThisBuffer;
273    handle->SetCallbacks = SetCallbacks;
274    handle->ComponentDeInit = ComponentDeInit;
275    handle->UseEGLImage = UseEGLImage;
276    handle->ComponentRoleEnum = ComponentRoleEnum;
277
278    appdata = pAppData;
279    callbacks = pCallBacks;
280
281    if (nr_roles == 1) {
282        SetWorkingRole((OMX_STRING)&roles[0][0]);
283        ret = ApplyWorkingRole();
284        if (ret != OMX_ErrorNone) {
285            SetWorkingRole(NULL);
286            goto free_handle;
287        }
288    }
289
290    *pHandle = (OMX_HANDLETYPE *)handle;
291    state = OMX_StateLoaded;
292    return OMX_ErrorNone;
293
294free_handle:
295    free(handle);
296
297    appdata = NULL;
298    callbacks = NULL;
299    *pHandle = NULL;
300
301    return ret;
302}
303
304OMX_ERRORTYPE ComponentBase::FreeHandle(OMX_HANDLETYPE hComponent)
305{
306    OMX_ERRORTYPE ret;
307
308    if (hComponent != handle)
309        return OMX_ErrorBadParameter;
310
311    if (state != OMX_StateLoaded)
312        return OMX_ErrorIncorrectStateOperation;
313
314    FreePorts();
315
316    free(handle);
317
318    appdata = NULL;
319    callbacks = NULL;
320
321    state = OMX_StateUnloaded;
322    return OMX_ErrorNone;
323}
324
325/* end of core methods & helpers */
326
327/*
328 * component methods & helpers
329 */
330OMX_ERRORTYPE ComponentBase::GetComponentVersion(
331    OMX_IN  OMX_HANDLETYPE hComponent,
332    OMX_OUT OMX_STRING pComponentName,
333    OMX_OUT OMX_VERSIONTYPE* pComponentVersion,
334    OMX_OUT OMX_VERSIONTYPE* pSpecVersion,
335    OMX_OUT OMX_UUIDTYPE* pComponentUUID)
336{
337    ComponentBase *cbase;
338
339    if (!hComponent)
340        return OMX_ErrorBadParameter;
341
342    cbase = static_cast<ComponentBase *>
343        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
344    if (!cbase)
345        return OMX_ErrorBadParameter;
346
347    return cbase->CBaseGetComponentVersion(hComponent,
348                                           pComponentName,
349                                           pComponentVersion,
350                                           pSpecVersion,
351                                           pComponentUUID);
352}
353
354OMX_ERRORTYPE ComponentBase::CBaseGetComponentVersion(
355    OMX_IN  OMX_HANDLETYPE hComponent,
356    OMX_OUT OMX_STRING pComponentName,
357    OMX_OUT OMX_VERSIONTYPE* pComponentVersion,
358    OMX_OUT OMX_VERSIONTYPE* pSpecVersion,
359    OMX_OUT OMX_UUIDTYPE* pComponentUUID)
360{
361    /*
362     * Todo
363     */
364
365    return OMX_ErrorNotImplemented;
366}
367
368OMX_ERRORTYPE ComponentBase::SendCommand(
369    OMX_IN  OMX_HANDLETYPE hComponent,
370    OMX_IN  OMX_COMMANDTYPE Cmd,
371    OMX_IN  OMX_U32 nParam1,
372    OMX_IN  OMX_PTR pCmdData)
373{
374    ComponentBase *cbase;
375
376    if (!hComponent)
377        return OMX_ErrorBadParameter;
378
379    cbase = static_cast<ComponentBase *>
380        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
381    if (!cbase)
382        return OMX_ErrorBadParameter;
383
384    return cbase->CBaseSendCommand(hComponent, Cmd, nParam1, pCmdData);
385}
386
387OMX_ERRORTYPE ComponentBase::CBaseSendCommand(
388    OMX_IN  OMX_HANDLETYPE hComponent,
389    OMX_IN  OMX_COMMANDTYPE Cmd,
390    OMX_IN  OMX_U32 nParam1,
391    OMX_IN  OMX_PTR pCmdData)
392{
393    struct cmd_s *cmd;
394
395    if (hComponent != handle)
396        return OMX_ErrorInvalidComponent;
397
398    /* basic error check */
399    switch (Cmd) {
400    case OMX_CommandStateSet:
401        /*
402         * Todo
403         */
404        break;
405    case OMX_CommandFlush:
406        /*
407         * Todo
408         */
409        //break;
410    case OMX_CommandPortDisable:
411        /*
412         * Todo
413         */
414        //break;
415    case OMX_CommandPortEnable:
416        /*
417         * Todo
418         */
419        //break;
420    case OMX_CommandMarkBuffer:
421        /*
422         * Todo
423         */
424        //break;
425    default:
426        LOGE("command %d not supported\n", Cmd);
427        return OMX_ErrorUnsupportedIndex;
428    }
429
430    cmd = (struct cmd_s *)malloc(sizeof(*cmd));
431    if (!cmd)
432        return OMX_ErrorInsufficientResources;
433
434    cmd->cmd = Cmd;
435    cmd->param1 = nParam1;
436    cmd->cmddata = pCmdData;
437
438    return cmdwork->PushCmdQueue(cmd);
439}
440
441OMX_ERRORTYPE ComponentBase::GetParameter(
442    OMX_IN  OMX_HANDLETYPE hComponent,
443    OMX_IN  OMX_INDEXTYPE nParamIndex,
444    OMX_INOUT OMX_PTR pComponentParameterStructure)
445{
446    ComponentBase *cbase;
447
448    if (!hComponent)
449        return OMX_ErrorBadParameter;
450
451    cbase = static_cast<ComponentBase *>
452        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
453    if (!cbase)
454        return OMX_ErrorBadParameter;
455
456    return cbase->CBaseGetParameter(hComponent, nParamIndex,
457                                    pComponentParameterStructure);
458}
459
460OMX_ERRORTYPE ComponentBase::CBaseGetParameter(
461    OMX_IN  OMX_HANDLETYPE hComponent,
462    OMX_IN  OMX_INDEXTYPE nParamIndex,
463    OMX_INOUT OMX_PTR pComponentParameterStructure)
464{
465    OMX_ERRORTYPE ret = OMX_ErrorNone;
466
467    if (hComponent != handle)
468        return OMX_ErrorBadParameter;
469
470    switch (nParamIndex) {
471    case OMX_IndexParamAudioInit:
472    case OMX_IndexParamVideoInit:
473    case OMX_IndexParamImageInit:
474    case OMX_IndexParamOtherInit: {
475        OMX_PORT_PARAM_TYPE *p =
476            (OMX_PORT_PARAM_TYPE *)pComponentParameterStructure;
477
478        ret = CheckTypeHeader(p, sizeof(*p));
479        if (ret != OMX_ErrorNone)
480            return ret;
481
482        memcpy(p, &portparam, sizeof(*p));
483        break;
484    }
485    case OMX_IndexParamPortDefinition: {
486        OMX_PARAM_PORTDEFINITIONTYPE *p =
487            (OMX_PARAM_PORTDEFINITIONTYPE *)pComponentParameterStructure;
488        OMX_U32 index = p->nPortIndex;
489        PortBase *port = NULL;
490
491        ret = CheckTypeHeader(p, sizeof(*p));
492        if (ret != OMX_ErrorNone)
493            return ret;
494
495        if (index < nr_ports)
496            port = ports[index];
497
498        if (!port)
499            return OMX_ErrorBadParameter;
500
501        memcpy(p, port->GetPortParam(), sizeof(*p));
502        break;
503    }
504    case OMX_IndexParamAudioPortFormat: {
505        OMX_AUDIO_PARAM_PORTFORMATTYPE *p =
506            (OMX_AUDIO_PARAM_PORTFORMATTYPE *)pComponentParameterStructure;
507        OMX_U32 index = p->nPortIndex;
508        PortBase *port = NULL;
509
510        ret = CheckTypeHeader(p, sizeof(*p));
511        if (ret != OMX_ErrorNone)
512            return ret;
513
514        if (index < nr_ports)
515            port = ports[index];
516
517        if (!port)
518            return OMX_ErrorBadParameter;
519
520        memcpy(p, port->GetAudioPortParam(), sizeof(*p));
521        break;
522    }
523    case OMX_IndexParamCompBufferSupplier:
524        /*
525         * Todo
526         */
527
528        ret = OMX_ErrorUnsupportedIndex;
529        break;
530    default:
531        ret = ComponentGetParameter(nParamIndex, pComponentParameterStructure);
532    } /* switch */
533
534    return ret;
535}
536
537OMX_ERRORTYPE ComponentBase::SetParameter(
538    OMX_IN  OMX_HANDLETYPE hComponent,
539    OMX_IN  OMX_INDEXTYPE nIndex,
540    OMX_IN  OMX_PTR pComponentParameterStructure)
541{
542    ComponentBase *cbase;
543
544    if (!hComponent)
545        return OMX_ErrorBadParameter;
546
547    cbase = static_cast<ComponentBase *>
548        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
549    if (!cbase)
550        return OMX_ErrorBadParameter;
551
552    return cbase->CBaseSetParameter(hComponent, nIndex,
553                                    pComponentParameterStructure);
554}
555
556OMX_ERRORTYPE ComponentBase::CBaseSetParameter(
557    OMX_IN  OMX_HANDLETYPE hComponent,
558    OMX_IN  OMX_INDEXTYPE nIndex,
559    OMX_IN  OMX_PTR pComponentParameterStructure)
560{
561    OMX_ERRORTYPE ret = OMX_ErrorNone;
562
563    if (hComponent != handle)
564        return OMX_ErrorBadParameter;
565
566    switch (nIndex) {
567    case OMX_IndexParamAudioInit:
568    case OMX_IndexParamVideoInit:
569    case OMX_IndexParamImageInit:
570    case OMX_IndexParamOtherInit: {
571        OMX_PORT_PARAM_TYPE *p = (OMX_PORT_PARAM_TYPE *)
572            pComponentParameterStructure;
573
574        ret = CheckTypeHeader(p, sizeof(*p));
575        if (ret != OMX_ErrorNone)
576            return ret;
577
578        memcpy(&portparam, p, sizeof(*p));
579        break;
580    }
581    case OMX_IndexParamPortDefinition: {
582        OMX_PARAM_PORTDEFINITIONTYPE *p =
583            (OMX_PARAM_PORTDEFINITIONTYPE *)pComponentParameterStructure;
584        OMX_U32 index = p->nPortIndex;
585        PortBase *port = NULL;
586
587        ret = CheckTypeHeader(p, sizeof(*p));
588        if (ret != OMX_ErrorNone)
589            return ret;
590
591        if (index < nr_ports)
592            port = ports[index];
593
594        if (!port)
595            return OMX_ErrorBadParameter;
596
597        port->SetPortParam(p);
598        break;
599    }
600    case OMX_IndexParamAudioPortFormat: {
601        OMX_AUDIO_PARAM_PORTFORMATTYPE *p =
602            (OMX_AUDIO_PARAM_PORTFORMATTYPE *)pComponentParameterStructure;
603        OMX_U32 index = p->nPortIndex;
604        PortBase *port = NULL;
605
606        ret = CheckTypeHeader(p, sizeof(*p));
607        if (ret != OMX_ErrorNone)
608            return ret;
609
610        if (index < nr_ports)
611            port = ports[index];
612
613        if (!port)
614            return OMX_ErrorBadParameter;
615
616        port->SetAudioPortParam(p);
617        break;
618    }
619    case OMX_IndexParamCompBufferSupplier:
620        /*
621         * Todo
622         */
623
624        ret = OMX_ErrorUnsupportedIndex;
625        break;
626    case OMX_IndexParamStandardComponentRole: {
627        OMX_PARAM_COMPONENTROLETYPE *p =
628            (OMX_PARAM_COMPONENTROLETYPE *)pComponentParameterStructure;
629
630        ret = CheckTypeHeader(p, sizeof(*p));
631        if (ret != OMX_ErrorNone)
632            return ret;
633
634        ret = SetWorkingRole((OMX_STRING)p->cRole);
635        if (ret != OMX_ErrorNone)
636            return ret;
637
638        if (ports)
639            FreePorts();
640
641        ret = ApplyWorkingRole();
642        if (ret != OMX_ErrorNone) {
643            SetWorkingRole(NULL);
644            return ret;
645        }
646        break;
647    }
648    default:
649        ret = ComponentSetParameter(nIndex, pComponentParameterStructure);
650    } /* switch */
651
652    return ret;
653}
654
655OMX_ERRORTYPE ComponentBase::GetConfig(
656    OMX_IN  OMX_HANDLETYPE hComponent,
657    OMX_IN  OMX_INDEXTYPE nIndex,
658    OMX_INOUT OMX_PTR pComponentConfigStructure)
659{
660    ComponentBase *cbase;
661
662    if (!hComponent)
663        return OMX_ErrorBadParameter;
664
665    cbase = static_cast<ComponentBase *>
666        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
667    if (!cbase)
668        return OMX_ErrorBadParameter;
669
670    return cbase->CBaseGetConfig(hComponent, nIndex,
671                                 pComponentConfigStructure);
672}
673
674OMX_ERRORTYPE ComponentBase::CBaseGetConfig(
675    OMX_IN  OMX_HANDLETYPE hComponent,
676    OMX_IN  OMX_INDEXTYPE nIndex,
677    OMX_INOUT OMX_PTR pComponentConfigStructure)
678{
679    OMX_ERRORTYPE ret;
680
681    if (hComponent != handle)
682        return OMX_ErrorBadParameter;
683
684    switch (nIndex) {
685    default:
686        ret = ComponentGetConfig(nIndex, pComponentConfigStructure);
687    }
688
689    return ret;
690}
691
692OMX_ERRORTYPE ComponentBase::SetConfig(
693    OMX_IN  OMX_HANDLETYPE hComponent,
694    OMX_IN  OMX_INDEXTYPE nIndex,
695    OMX_IN  OMX_PTR pComponentConfigStructure)
696{
697    ComponentBase *cbase;
698
699    if (!hComponent)
700        return OMX_ErrorBadParameter;
701
702    cbase = static_cast<ComponentBase *>
703        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
704    if (!cbase)
705        return OMX_ErrorBadParameter;
706
707    return cbase->CBaseSetConfig(hComponent, nIndex,
708                                 pComponentConfigStructure);
709}
710
711OMX_ERRORTYPE ComponentBase::CBaseSetConfig(
712    OMX_IN  OMX_HANDLETYPE hComponent,
713    OMX_IN  OMX_INDEXTYPE nIndex,
714    OMX_IN  OMX_PTR pComponentConfigStructure)
715{
716    OMX_ERRORTYPE ret;
717
718    if (hComponent != handle)
719        return OMX_ErrorBadParameter;
720
721    switch (nIndex) {
722    default:
723        ret = ComponentSetConfig(nIndex, pComponentConfigStructure);
724    }
725
726    return ret;
727}
728
729OMX_ERRORTYPE ComponentBase::GetExtensionIndex(
730    OMX_IN  OMX_HANDLETYPE hComponent,
731    OMX_IN  OMX_STRING cParameterName,
732    OMX_OUT OMX_INDEXTYPE* pIndexType)
733{
734    ComponentBase *cbase;
735
736    if (!hComponent)
737        return OMX_ErrorBadParameter;
738
739    cbase = static_cast<ComponentBase *>
740        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
741    if (!cbase)
742        return OMX_ErrorBadParameter;
743
744    return cbase->CBaseGetExtensionIndex(hComponent, cParameterName,
745                                         pIndexType);
746}
747
748OMX_ERRORTYPE ComponentBase::CBaseGetExtensionIndex(
749    OMX_IN  OMX_HANDLETYPE hComponent,
750    OMX_IN  OMX_STRING cParameterName,
751    OMX_OUT OMX_INDEXTYPE* pIndexType)
752{
753    /*
754     * Todo
755     */
756
757    return OMX_ErrorNotImplemented;
758}
759
760OMX_ERRORTYPE ComponentBase::GetState(
761    OMX_IN  OMX_HANDLETYPE hComponent,
762    OMX_OUT OMX_STATETYPE* pState)
763{
764    ComponentBase *cbase;
765
766    if (!hComponent)
767        return OMX_ErrorBadParameter;
768
769    cbase = static_cast<ComponentBase *>
770        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
771    if (!cbase)
772        return OMX_ErrorBadParameter;
773
774    return cbase->CBaseGetState(hComponent, pState);
775}
776
777OMX_ERRORTYPE ComponentBase::CBaseGetState(
778    OMX_IN  OMX_HANDLETYPE hComponent,
779    OMX_OUT OMX_STATETYPE* pState)
780{
781    if (hComponent != handle)
782        return OMX_ErrorBadParameter;
783
784    *pState = state;
785    return OMX_ErrorNone;
786}
787
788OMX_ERRORTYPE ComponentBase::ComponentTunnelRequest(
789    OMX_IN  OMX_HANDLETYPE hComponent,
790    OMX_IN  OMX_U32 nPort,
791    OMX_IN  OMX_HANDLETYPE hTunneledComponent,
792    OMX_IN  OMX_U32 nTunneledPort,
793    OMX_INOUT  OMX_TUNNELSETUPTYPE* pTunnelSetup)
794{
795    ComponentBase *cbase;
796
797    if (!hComponent)
798        return OMX_ErrorBadParameter;
799
800    cbase = static_cast<ComponentBase *>
801        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
802    if (!cbase)
803        return OMX_ErrorBadParameter;
804
805    return cbase->CBaseComponentTunnelRequest(hComponent, nPort,
806                                              hTunneledComponent,
807                                              nTunneledPort, pTunnelSetup);
808}
809
810OMX_ERRORTYPE ComponentBase::CBaseComponentTunnelRequest(
811    OMX_IN  OMX_HANDLETYPE hComp,
812    OMX_IN  OMX_U32 nPort,
813    OMX_IN  OMX_HANDLETYPE hTunneledComp,
814    OMX_IN  OMX_U32 nTunneledPort,
815    OMX_INOUT  OMX_TUNNELSETUPTYPE* pTunnelSetup)
816{
817    /*
818     * Todo
819     */
820
821    return OMX_ErrorNotImplemented;
822}
823
824OMX_ERRORTYPE ComponentBase::UseBuffer(
825    OMX_IN OMX_HANDLETYPE hComponent,
826    OMX_INOUT OMX_BUFFERHEADERTYPE **ppBufferHdr,
827    OMX_IN OMX_U32 nPortIndex,
828    OMX_IN OMX_PTR pAppPrivate,
829    OMX_IN OMX_U32 nSizeBytes,
830    OMX_IN OMX_U8 *pBuffer)
831{
832    ComponentBase *cbase;
833
834    if (!hComponent)
835        return OMX_ErrorBadParameter;
836
837    cbase = static_cast<ComponentBase *>
838        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
839    if (!cbase)
840        return OMX_ErrorBadParameter;
841
842    return cbase->CBaseUseBuffer(hComponent, ppBufferHdr, nPortIndex,
843                                 pAppPrivate, nSizeBytes, pBuffer);
844}
845
846OMX_ERRORTYPE ComponentBase::CBaseUseBuffer(
847    OMX_IN OMX_HANDLETYPE hComponent,
848    OMX_INOUT OMX_BUFFERHEADERTYPE **ppBufferHdr,
849    OMX_IN OMX_U32 nPortIndex,
850    OMX_IN OMX_PTR pAppPrivate,
851    OMX_IN OMX_U32 nSizeBytes,
852    OMX_IN OMX_U8 *pBuffer)
853{
854    PortBase *port = NULL;
855    OMX_ERRORTYPE ret;
856
857    if (hComponent != handle)
858        return OMX_ErrorBadParameter;
859
860    if (ports)
861        if (nPortIndex < nr_ports)
862            port = ports[nPortIndex];
863
864    if (!port)
865        return OMX_ErrorBadParameter;
866
867    return port->UseBuffer(ppBufferHdr, nPortIndex, pAppPrivate, nSizeBytes,
868                           pBuffer);
869}
870
871OMX_ERRORTYPE ComponentBase::AllocateBuffer(
872    OMX_IN OMX_HANDLETYPE hComponent,
873    OMX_INOUT OMX_BUFFERHEADERTYPE **ppBuffer,
874    OMX_IN OMX_U32 nPortIndex,
875    OMX_IN OMX_PTR pAppPrivate,
876    OMX_IN OMX_U32 nSizeBytes)
877{
878    ComponentBase *cbase;
879
880    if (!hComponent)
881        return OMX_ErrorBadParameter;
882
883    cbase = static_cast<ComponentBase *>
884        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
885    if (!cbase)
886        return OMX_ErrorBadParameter;
887
888    return cbase->CBaseAllocateBuffer(hComponent, ppBuffer, nPortIndex,
889                                      pAppPrivate, nSizeBytes);
890}
891
892OMX_ERRORTYPE ComponentBase::CBaseAllocateBuffer(
893    OMX_IN OMX_HANDLETYPE hComponent,
894    OMX_INOUT OMX_BUFFERHEADERTYPE **ppBuffer,
895    OMX_IN OMX_U32 nPortIndex,
896    OMX_IN OMX_PTR pAppPrivate,
897    OMX_IN OMX_U32 nSizeBytes)
898{
899    PortBase *port = NULL;
900    OMX_ERRORTYPE ret;
901
902    if (hComponent != handle)
903        return OMX_ErrorBadParameter;
904
905    if (ports)
906        if (nPortIndex < nr_ports)
907            port = ports[nPortIndex];
908
909    if (!port)
910        return OMX_ErrorBadParameter;
911
912    return port->AllocateBuffer(ppBuffer, nPortIndex, pAppPrivate, nSizeBytes);
913}
914
915OMX_ERRORTYPE ComponentBase::FreeBuffer(
916    OMX_IN  OMX_HANDLETYPE hComponent,
917    OMX_IN  OMX_U32 nPortIndex,
918    OMX_IN  OMX_BUFFERHEADERTYPE *pBuffer)
919{
920    ComponentBase *cbase;
921
922    if (!hComponent)
923        return OMX_ErrorBadParameter;
924
925    cbase = static_cast<ComponentBase *>
926        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
927    if (!cbase)
928        return OMX_ErrorBadParameter;
929
930    return cbase->CBaseFreeBuffer(hComponent, nPortIndex, pBuffer);
931}
932
933OMX_ERRORTYPE ComponentBase::CBaseFreeBuffer(
934    OMX_IN  OMX_HANDLETYPE hComponent,
935    OMX_IN  OMX_U32 nPortIndex,
936    OMX_IN  OMX_BUFFERHEADERTYPE *pBuffer)
937{
938    PortBase *port = NULL;
939    OMX_ERRORTYPE ret;
940
941    if (hComponent != handle)
942        return OMX_ErrorBadParameter;
943
944    if (ports)
945        if (nPortIndex < nr_ports)
946            port = ports[nPortIndex];
947
948    if (!port)
949        return OMX_ErrorBadParameter;
950
951    return port->FreeBuffer(nPortIndex, pBuffer);
952}
953
954OMX_ERRORTYPE ComponentBase::EmptyThisBuffer(
955    OMX_IN  OMX_HANDLETYPE hComponent,
956    OMX_IN  OMX_BUFFERHEADERTYPE* pBuffer)
957{
958    ComponentBase *cbase;
959
960    if (!hComponent)
961        return OMX_ErrorBadParameter;
962
963    cbase = static_cast<ComponentBase *>
964        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
965    if (!cbase)
966        return OMX_ErrorBadParameter;
967
968    return cbase->CBaseEmptyThisBuffer(hComponent, pBuffer);
969}
970
971OMX_ERRORTYPE ComponentBase::CBaseEmptyThisBuffer(
972    OMX_IN  OMX_HANDLETYPE hComponent,
973    OMX_IN  OMX_BUFFERHEADERTYPE *pBuffer)
974{
975    PortBase *port = NULL;
976    OMX_U32 port_index;
977    OMX_ERRORTYPE ret;
978
979    if ((hComponent != handle) || !pBuffer)
980        return OMX_ErrorBadParameter;
981
982    port_index = pBuffer->nInputPortIndex;
983    if (port_index == (OMX_U32)-1)
984        return OMX_ErrorBadParameter;
985
986    if (ports)
987        if (port_index < nr_ports)
988            port = ports[port_index];
989
990    if (!port)
991        return OMX_ErrorBadParameter;
992
993    ret = port->PushThisBuffer(pBuffer);
994    if (ret == OMX_ErrorNone)
995        bufferwork->ScheduleWork(this);
996
997    return ret;
998}
999
1000OMX_ERRORTYPE ComponentBase::FillThisBuffer(
1001    OMX_IN  OMX_HANDLETYPE hComponent,
1002    OMX_IN  OMX_BUFFERHEADERTYPE *pBuffer)
1003{
1004    ComponentBase *cbase;
1005
1006    if (!hComponent)
1007        return OMX_ErrorBadParameter;
1008
1009    cbase = static_cast<ComponentBase *>
1010        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
1011    if (!cbase)
1012        return OMX_ErrorBadParameter;
1013
1014    return cbase->CBaseFillThisBuffer(hComponent, pBuffer);
1015}
1016
1017OMX_ERRORTYPE ComponentBase::CBaseFillThisBuffer(
1018    OMX_IN  OMX_HANDLETYPE hComponent,
1019    OMX_IN  OMX_BUFFERHEADERTYPE *pBuffer)
1020{
1021    PortBase *port = NULL;
1022    OMX_U32 port_index;
1023    OMX_ERRORTYPE ret;
1024
1025    if ((hComponent != handle) || !pBuffer)
1026        return OMX_ErrorBadParameter;
1027
1028    port_index = pBuffer->nOutputPortIndex;
1029    if (port_index == (OMX_U32)-1)
1030        return OMX_ErrorBadParameter;
1031
1032    if (ports)
1033        if (port_index < nr_ports)
1034            port = ports[port_index];
1035
1036    if (!port)
1037        return OMX_ErrorBadParameter;
1038
1039    ret = port->PushThisBuffer(pBuffer);
1040    if (ret == OMX_ErrorNone)
1041        bufferwork->ScheduleWork(this);
1042
1043    return ret;
1044}
1045
1046OMX_ERRORTYPE ComponentBase::SetCallbacks(
1047    OMX_IN  OMX_HANDLETYPE hComponent,
1048    OMX_IN  OMX_CALLBACKTYPE* pCallbacks,
1049    OMX_IN  OMX_PTR pAppData)
1050{
1051    ComponentBase *cbase;
1052
1053    if (!hComponent)
1054        return OMX_ErrorBadParameter;
1055
1056    cbase = static_cast<ComponentBase *>
1057        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
1058    if (!cbase)
1059        return OMX_ErrorBadParameter;
1060
1061    return cbase->CBaseSetCallbacks(hComponent, pCallbacks, pAppData);
1062}
1063
1064OMX_ERRORTYPE ComponentBase::CBaseSetCallbacks(
1065    OMX_IN  OMX_HANDLETYPE hComponent,
1066    OMX_IN  OMX_CALLBACKTYPE *pCallbacks,
1067    OMX_IN  OMX_PTR pAppData)
1068{
1069    if (hComponent != handle)
1070        return OMX_ErrorBadParameter;
1071
1072    appdata = pAppData;
1073    callbacks = pCallbacks;
1074
1075    return OMX_ErrorNone;
1076}
1077
1078OMX_ERRORTYPE ComponentBase::ComponentDeInit(
1079    OMX_IN  OMX_HANDLETYPE hComponent)
1080{
1081    ComponentBase *cbase;
1082
1083    if (!hComponent)
1084        return OMX_ErrorBadParameter;
1085
1086    cbase = static_cast<ComponentBase *>
1087        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
1088    if (!cbase)
1089        return OMX_ErrorBadParameter;
1090
1091    return cbase->CBaseComponentDeInit(hComponent);
1092}
1093
1094OMX_ERRORTYPE ComponentBase::CBaseComponentDeInit(
1095    OMX_IN  OMX_HANDLETYPE hComponent)
1096{
1097    /*
1098     * Todo
1099     */
1100
1101    return OMX_ErrorNotImplemented;
1102}
1103
1104OMX_ERRORTYPE ComponentBase::UseEGLImage(
1105    OMX_IN OMX_HANDLETYPE hComponent,
1106    OMX_INOUT OMX_BUFFERHEADERTYPE** ppBufferHdr,
1107    OMX_IN OMX_U32 nPortIndex,
1108    OMX_IN OMX_PTR pAppPrivate,
1109    OMX_IN void* eglImage)
1110{
1111    ComponentBase *cbase;
1112
1113    if (!hComponent)
1114        return OMX_ErrorBadParameter;
1115
1116    cbase = static_cast<ComponentBase *>
1117        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
1118    if (!cbase)
1119        return OMX_ErrorBadParameter;
1120
1121    return cbase->CBaseUseEGLImage(hComponent, ppBufferHdr, nPortIndex,
1122                                   pAppPrivate, eglImage);
1123}
1124
1125OMX_ERRORTYPE ComponentBase::CBaseUseEGLImage(
1126    OMX_IN OMX_HANDLETYPE hComponent,
1127    OMX_INOUT OMX_BUFFERHEADERTYPE** ppBufferHdr,
1128    OMX_IN OMX_U32 nPortIndex,
1129    OMX_IN OMX_PTR pAppPrivate,
1130    OMX_IN void* eglImage)
1131{
1132    /*
1133     * Todo
1134     */
1135
1136    return OMX_ErrorNotImplemented;
1137}
1138
1139OMX_ERRORTYPE ComponentBase::ComponentRoleEnum(
1140    OMX_IN OMX_HANDLETYPE hComponent,
1141    OMX_OUT OMX_U8 *cRole,
1142    OMX_IN OMX_U32 nIndex)
1143{
1144    ComponentBase *cbase;
1145
1146    if (!hComponent)
1147        return OMX_ErrorBadParameter;
1148
1149    cbase = static_cast<ComponentBase *>
1150        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
1151    if (!cbase)
1152        return OMX_ErrorBadParameter;
1153
1154    return cbase->CBaseComponentRoleEnum(hComponent, cRole, nIndex);
1155}
1156
1157OMX_ERRORTYPE ComponentBase::CBaseComponentRoleEnum(
1158    OMX_IN OMX_HANDLETYPE hComponent,
1159    OMX_OUT OMX_U8 *cRole,
1160    OMX_IN OMX_U32 nIndex)
1161{
1162    if (hComponent != (OMX_HANDLETYPE *)this->handle)
1163        return OMX_ErrorBadParameter;
1164
1165    if (nIndex > nr_roles)
1166        return OMX_ErrorBadParameter;
1167
1168    strncpy((char *)cRole, (const char *)roles[nIndex],
1169            OMX_MAX_STRINGNAME_SIZE);
1170    return OMX_ErrorNone;
1171}
1172
1173/* implement CmdHandlerInterface */
1174void ComponentBase::CmdHandler(struct cmd_s *cmd)
1175{
1176    switch (cmd->cmd) {
1177    case OMX_CommandStateSet: {
1178        OMX_STATETYPE transition = (OMX_STATETYPE)cmd->param1;
1179
1180        TransState(transition);
1181        break;
1182    }
1183    case OMX_CommandFlush:
1184        /*
1185         * Todo
1186         */
1187        break;
1188    case OMX_CommandPortDisable:
1189        /*
1190         * Todo
1191         */
1192        break;
1193    case OMX_CommandPortEnable:
1194        /*
1195         * Todo
1196         */
1197        break;
1198    case OMX_CommandMarkBuffer:
1199        /*
1200         * Todo
1201         */
1202        break;
1203    } /* switch */
1204}
1205
1206/*
1207 * SendCommand:OMX_CommandStateSet
1208 * called in CmdHandler or called in other parts of component for reporting
1209 * internal error (OMX_StateInvalid).
1210 */
1211/*
1212 * Todo
1213 *   Resource Management (OMX_StateWaitForResources)
1214 *   for now, we never notify OMX_ErrorInsufficientResources,
1215 *   so IL client doesn't try to set component' state OMX_StateWaitForResources
1216 */
1217static const char *state_name[OMX_StateWaitForResources + 1] = {
1218    "OMX_StateInvalid",
1219    "OMX_StateLoaded",
1220    "OMX_StateIdle",
1221    "OMX_StateExecuting",
1222    "OMX_StatePause",
1223    "OMX_StateWaitForResources",
1224};
1225
1226static inline const char *GetStateName(OMX_STATETYPE state)
1227{
1228    if (state > OMX_StateWaitForResources)
1229        return "UnKnown";
1230
1231    return state_name[state];
1232}
1233
1234void ComponentBase::TransState(OMX_STATETYPE transition)
1235{
1236    OMX_STATETYPE current = this->state;
1237    OMX_EVENTTYPE event;
1238    OMX_U32 data1, data2;
1239    OMX_ERRORTYPE ret;
1240
1241    LOGD("current state = %s, transition state = %s\n",
1242         GetStateName(current), GetStateName(transition));
1243
1244    /* same state */
1245    if (current == transition) {
1246        ret = OMX_ErrorSameState;
1247        goto notify_event;
1248    }
1249
1250    /* invalid state */
1251    if (current == OMX_StateInvalid) {
1252        ret = OMX_ErrorInvalidState;
1253        goto notify_event;
1254    }
1255
1256    if (transition == OMX_StateLoaded)
1257        ret = TransStateToLoaded(current);
1258    else if (transition == OMX_StateIdle)
1259        ret = TransStateToIdle(current);
1260    else if (transition == OMX_StateExecuting)
1261        ret = TransStateToExecuting(current);
1262    else if (transition == OMX_StatePause)
1263        ret = TransStateToPause(current);
1264    else if (transition == OMX_StateInvalid)
1265        ret = TransStateToInvalid(current);
1266    else if (transition == OMX_StateWaitForResources)
1267        ret = TransStateToWaitForResources(current);
1268    else
1269        ret = OMX_ErrorIncorrectStateTransition;
1270
1271notify_event:
1272    if (ret == OMX_ErrorNone) {
1273        event = OMX_EventCmdComplete;
1274        data1 = OMX_CommandStateSet;
1275        data2 = transition;
1276
1277        state = transition;
1278        LOGD("transition from %s to %s completed\n",
1279             GetStateName(current), GetStateName(transition));
1280    }
1281    else {
1282        event = OMX_EventError;
1283        data1 = ret;
1284        data2 = 0;
1285
1286        if (transition == OMX_StateInvalid) {
1287            state = transition;
1288            LOGD("transition from %s to %s completed\n",
1289                 GetStateName(current), GetStateName(transition));
1290        }
1291    }
1292
1293    callbacks->EventHandler(handle, appdata, event, data1, data2, NULL);
1294
1295    /* WaitForResources workaround */
1296    if (ret == OMX_ErrorNone && transition == OMX_StateWaitForResources)
1297        callbacks->EventHandler(handle, appdata,
1298                                OMX_EventResourcesAcquired, 0, 0, NULL);
1299}
1300
1301inline OMX_ERRORTYPE ComponentBase::TransStateToLoaded(OMX_STATETYPE current)
1302{
1303    OMX_ERRORTYPE ret;
1304
1305    if (current == OMX_StateIdle) {
1306        /*
1307         * Todo
1308         *   1. waits for completion of deallocation on each port
1309         *      wokeup by FreeBuffer()
1310         *   2. deinitialize buffer process work
1311         *   3. deinitialize component's internal processor
1312         *      (ex. deinitialize sw/hw codec)
1313         */
1314        OMX_U32 i;
1315
1316        for (i = 0; i < nr_ports; i++)
1317            ports[i]->WaitPortBufferCompletion();
1318
1319        ret = OMX_ErrorNone;
1320    }
1321    else if (current == OMX_StateWaitForResources) {
1322        LOGE("state transition's requested from WaitForResources to "
1323             "Loaded\n");
1324
1325        /*
1326         * from WaitForResources to Loaded considered from Loaded to Loaded.
1327         * do nothing
1328         */
1329
1330        ret = OMX_ErrorNone;
1331    }
1332    else
1333        ret = OMX_ErrorIncorrectStateOperation;
1334
1335    return ret;
1336}
1337
1338inline OMX_ERRORTYPE ComponentBase::TransStateToIdle(OMX_STATETYPE current)
1339{
1340    OMX_ERRORTYPE ret;
1341
1342    if (current == OMX_StateLoaded) {
1343        /*
1344         * Todo
1345         *   1. waits for completion of allocation on each port.
1346         *      wokeup by Allocate/UseBuffer()
1347         *   2. initialize buffer process work.
1348         *   3. initialize component's internal processor.
1349         *      (ex. initialize sw/hw codec)
1350         */
1351        OMX_U32 i;
1352
1353        for (i = 0; i < nr_ports; i++)
1354            ports[i]->WaitPortBufferCompletion();
1355
1356        ret = OMX_ErrorNone;
1357    }
1358    else if (current == OMX_StateExecuting) {
1359        /*
1360         * Todo
1361         *   1. returns all buffers to thier suppliers.         !
1362         *      call Fill/EmptyBufferDone() for all ports
1363         *   2. stop buffer process work                        !
1364         *   3. stop component's internal processor
1365         */
1366        OMX_U32 i;
1367
1368        pthread_mutex_lock(&ports_block);
1369        for (i = 0; i < nr_ports; i++) {
1370            ports[i]->FlushPort();
1371        }
1372        pthread_mutex_unlock(&ports_block);
1373
1374        bufferwork->StopWork();
1375
1376        ret = OMX_ErrorNone;
1377    }
1378    else if (current == OMX_StatePause) {
1379        /*
1380         * Todo
1381         *   1. returns all buffers to thier suppliers.         !
1382         *      call Fill/EmptyBufferDone() for all ports
1383         *   2. discard queued work, stop buffer process work   !
1384         *   3. stop component's internal processor
1385         */
1386        OMX_U32 i;
1387
1388        pthread_mutex_lock(&ports_block);
1389        for (i = 0; i < nr_ports; i++) {
1390            ports[i]->FlushPort();
1391        }
1392        pthread_mutex_unlock(&ports_block);
1393
1394        bufferwork->CancelScheduledWork(this);
1395        bufferwork->StopWork();
1396
1397        ret = OMX_ErrorNone;
1398    }
1399    else if (current == OMX_StateWaitForResources) {
1400        LOGE("state transition's requested from WaitForResources to Idle\n");
1401
1402        /* same as Loaded to Idle BUT DO NOTHING for now */
1403
1404        ret = OMX_ErrorNone;
1405    }
1406    else
1407        ret = OMX_ErrorIncorrectStateOperation;
1408
1409    return ret;
1410}
1411
1412inline OMX_ERRORTYPE
1413ComponentBase::TransStateToExecuting(OMX_STATETYPE current)
1414{
1415    OMX_ERRORTYPE ret;
1416
1417    if (current == OMX_StateIdle) {
1418        /*
1419         * Todo
1420         *   1. start component's internal processor
1421         *   2. start processing buffers on each port   !
1422         */
1423
1424        pthread_mutex_lock(&executing_lock);
1425        executing = true;
1426        pthread_mutex_unlock(&executing_lock);
1427
1428        bufferwork->StartWork();
1429        ret = OMX_ErrorNone;
1430    }
1431    else if (current == OMX_StatePause) {
1432        /*
1433         * Todo
1434         *   1. resume component's internal processor
1435         *   2. resume buffer process work              !
1436         */
1437
1438        pthread_mutex_lock(&executing_lock);
1439        executing = true;
1440        pthread_cond_signal(&executing_wait);
1441        pthread_mutex_unlock(&executing_lock);
1442
1443        ret = OMX_ErrorNone;
1444    }
1445    else
1446        ret = OMX_ErrorIncorrectStateOperation;
1447
1448    return ret;
1449}
1450
1451inline OMX_ERRORTYPE ComponentBase::TransStateToPause(OMX_STATETYPE current)
1452{
1453    OMX_ERRORTYPE ret;
1454
1455    if (current == OMX_StateIdle) {
1456        /*
1457         * Todo
1458         *   1. start(paused) component's internal processor
1459         *   2. start(paused) processing buffers on each port   !
1460         */
1461
1462        /* turn off executing flag */
1463        pthread_mutex_lock(&executing_lock);
1464        executing = false;
1465        pthread_mutex_unlock(&executing_lock);
1466
1467        bufferwork->StartWork();
1468
1469        ret = OMX_ErrorNone;
1470    }
1471    else if (current == OMX_StateExecuting) {
1472        /*
1473         * Todo
1474         *   1. pause buffer process work               !
1475         *   2. pause component's internal processor
1476         */
1477
1478        pthread_mutex_lock(&executing_lock);
1479        executing = false;
1480        pthread_mutex_unlock(&executing_lock);
1481
1482        ret = OMX_ErrorNone;
1483    }
1484    else
1485        ret = OMX_ErrorIncorrectStateOperation;
1486
1487    return ret;
1488}
1489
1490inline OMX_ERRORTYPE ComponentBase::TransStateToInvalid(OMX_STATETYPE current)
1491{
1492    OMX_ERRORTYPE ret = OMX_ErrorInvalidState;
1493
1494    /*
1495     * Todo
1496     *   graceful escape
1497     */
1498
1499    return ret;
1500}
1501
1502inline OMX_ERRORTYPE
1503ComponentBase::TransStateToWaitForResources(OMX_STATETYPE current)
1504{
1505    OMX_ERRORTYPE ret;
1506
1507    if (current == OMX_StateLoaded) {
1508        LOGE("state transition's requested from Loaded to WaitForResources\n");
1509        ret = OMX_ErrorNone;
1510    }
1511    else
1512        ret = OMX_ErrorIncorrectStateOperation;
1513
1514    return ret;
1515}
1516
1517/* set working role */
1518OMX_ERRORTYPE ComponentBase::SetWorkingRole(const OMX_STRING role)
1519{
1520    OMX_U32 i;
1521
1522    if (state != OMX_StateUnloaded && state != OMX_StateLoaded)
1523        return OMX_ErrorIncorrectStateOperation;
1524
1525    if (!role) {
1526        working_role = NULL;
1527        return OMX_ErrorNone;
1528    }
1529
1530    for (i = 0; i < nr_roles; i++) {
1531        if (!strcmp((char *)&roles[i][0], role)) {
1532            working_role = (OMX_STRING)&roles[i][0];
1533            return OMX_ErrorNone;
1534        }
1535    }
1536
1537    LOGE("cannot find %s role in %s\n", role, name);
1538    return OMX_ErrorBadParameter;
1539}
1540
1541/* apply a working role for a component having multiple roles */
1542OMX_ERRORTYPE ComponentBase::ApplyWorkingRole(void)
1543{
1544    OMX_U32 i;
1545    OMX_ERRORTYPE ret;
1546
1547    if (state != OMX_StateUnloaded && state != OMX_StateLoaded)
1548        return OMX_ErrorIncorrectStateOperation;
1549
1550    if (!working_role)
1551        return OMX_ErrorBadParameter;
1552
1553    if (!callbacks || !appdata)
1554        return OMX_ErrorBadParameter;
1555
1556    ret = AllocatePorts();
1557    if (ret != OMX_ErrorNone) {
1558        LOGE("failed to AllocatePorts() (ret = 0x%08x)\n", ret);
1559        return ret;
1560    }
1561
1562    /* now we can access ports */
1563    for (i = 0; i < nr_ports; i++) {
1564        ports[i]->SetOwner(handle);
1565        ports[i]->SetCallbacks(handle, callbacks, appdata);
1566    }
1567
1568    return OMX_ErrorNone;
1569}
1570
1571OMX_ERRORTYPE ComponentBase::AllocatePorts(void)
1572{
1573    OMX_ERRORTYPE ret;
1574
1575    if (ports)
1576        return OMX_ErrorBadParameter;
1577
1578    ret = ComponentAllocatePorts();
1579    if (ret != OMX_ErrorNone) {
1580        LOGE("failed to %s::ComponentAllocatePorts(), ret = 0x%08x\n",
1581             name, ret);
1582        return ret;
1583    }
1584
1585    return OMX_ErrorNone;
1586}
1587
1588/* called int FreeHandle() */
1589OMX_ERRORTYPE ComponentBase::FreePorts(void)
1590{
1591    if (ports) {
1592        OMX_U32 i, this_nr_ports = this->nr_ports;
1593
1594        for (i = 0; i < this_nr_ports; i++) {
1595            if (ports[i]) {
1596                delete ports[i];
1597                ports[i] = NULL;
1598            }
1599        }
1600        delete []ports;
1601        ports = NULL;
1602    }
1603
1604    return OMX_ErrorNone;
1605}
1606
1607/* buffer processing */
1608/* implement WorkableInterface */
1609void ComponentBase::Work(void)
1610{
1611    OMX_BUFFERHEADERTYPE **buffers = NULL;
1612    OMX_U32 i;
1613    bool avail = false;
1614
1615    pthread_mutex_lock(&executing_lock);
1616    if (!executing)
1617        pthread_cond_wait(&executing_wait, &executing_lock);
1618    pthread_mutex_unlock(&executing_lock);
1619
1620    pthread_mutex_lock(&ports_block);
1621
1622    avail = IsAllBufferAvailable();
1623    if (avail) {
1624        buffers = (OMX_BUFFERHEADERTYPE **)
1625            calloc(nr_ports, sizeof(OMX_BUFFERHEADERTYPE *));
1626        if (!buffers) {
1627            bufferwork->ScheduleWork(this);
1628            return;
1629        }
1630
1631        for (i = 0; i < nr_ports; i++)
1632            buffers[i] = ports[i]->PopBuffer();
1633    }
1634    ScheduleIfAllBufferAvailable();
1635
1636    pthread_mutex_unlock(&ports_block);
1637
1638    if (buffers) {
1639        ComponentProcessBuffers(buffers, nr_ports);
1640
1641        free(buffers);
1642        buffers = NULL;
1643    }
1644}
1645
1646bool ComponentBase::IsAllBufferAvailable(void)
1647{
1648    OMX_U32 i;
1649    OMX_U32 nr_avail = 0;
1650
1651    for (i = 0; i < nr_ports; i++) {
1652        OMX_U32 length;
1653
1654        length = ports[i]->BufferQueueLength();
1655        if (length)
1656            nr_avail++;
1657    }
1658
1659    if (nr_avail == nr_ports)
1660        return true;
1661    else
1662        return false;
1663}
1664
1665void ComponentBase::ScheduleIfAllBufferAvailable(void)
1666{
1667    bool avail;
1668
1669    avail = IsAllBufferAvailable();
1670    if (avail)
1671        bufferwork->ScheduleWork(this);
1672}
1673
1674/* end of component methods & helpers */
1675
1676/*
1677 * omx header manipuation
1678 */
1679void ComponentBase::SetTypeHeader(OMX_PTR type, OMX_U32 size)
1680{
1681    OMX_U32 *nsize;
1682    OMX_VERSIONTYPE *nversion;
1683
1684    if (!type)
1685        return;
1686
1687    nsize = (OMX_U32 *)type;
1688    nversion = (OMX_VERSIONTYPE *)((OMX_U8 *)type + sizeof(OMX_U32));
1689
1690    *nsize = size;
1691    nversion->nVersion = OMX_SPEC_VERSION;
1692}
1693
1694OMX_ERRORTYPE ComponentBase::CheckTypeHeader(OMX_PTR type, OMX_U32 size)
1695{
1696    OMX_U32 *nsize;
1697    OMX_VERSIONTYPE *nversion;
1698
1699    if (!type)
1700        return OMX_ErrorBadParameter;
1701
1702    nsize = (OMX_U32 *)type;
1703    nversion = (OMX_VERSIONTYPE *)((OMX_U8 *)type + sizeof(OMX_U32));
1704
1705    if (*nsize != size)
1706        return OMX_ErrorBadParameter;
1707
1708    if (nversion->nVersion != OMX_SPEC_VERSION)
1709        return OMX_ErrorVersionMismatch;
1710
1711    return OMX_ErrorNone;
1712}
1713
1714/*
1715 * query_roles helper
1716 */
1717OMX_ERRORTYPE ComponentBase::QueryRolesHelper(
1718    OMX_U32 nr_comp_roles,
1719    const OMX_U8 **comp_roles,
1720    OMX_U32 *nr_roles, OMX_U8 **roles)
1721{
1722    OMX_U32 i;
1723
1724    if (!roles) {
1725        *nr_roles = nr_comp_roles;
1726        return OMX_ErrorNone;
1727    }
1728
1729    if (!nr_roles || (*nr_roles != nr_comp_roles) || !roles)
1730        return OMX_ErrorBadParameter;
1731
1732    for (i = 0; i < nr_comp_roles; i++) {
1733        if (!roles[i])
1734            break;
1735
1736        strncpy((OMX_STRING)&roles[i][0],
1737                (const OMX_STRING)&comp_roles[i][0], OMX_MAX_STRINGNAME_SIZE);
1738    }
1739
1740    if (i != nr_comp_roles)
1741        return OMX_ErrorBadParameter;
1742
1743    *nr_roles = nr_comp_roles;
1744    return OMX_ErrorNone;
1745}
1746
1747/* end of ComponentBase */
1748