componentbase.cpp revision c2c974d6dc62b38872e55559f5e83b01200f798b 
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        /* preventing clients from setting OMX_PORT_PARAM_TYPE */
572        ret = OMX_ErrorUnsupportedIndex;
573        break;
574    case OMX_IndexParamPortDefinition: {
575        OMX_PARAM_PORTDEFINITIONTYPE *p =
576            (OMX_PARAM_PORTDEFINITIONTYPE *)pComponentParameterStructure;
577        OMX_U32 index = p->nPortIndex;
578        PortBase *port = NULL;
579
580        ret = CheckTypeHeader(p, sizeof(*p));
581        if (ret != OMX_ErrorNone)
582            return ret;
583
584        if (index < nr_ports)
585            port = ports[index];
586
587        if (!port)
588            return OMX_ErrorBadParameter;
589
590        if (port->IsEnabled()) {
591            if (state != OMX_StateLoaded && state != OMX_StateWaitForResources)
592                return OMX_ErrorIncorrectStateOperation;
593        }
594
595        port->SetPortParam(p);
596        break;
597    }
598    case OMX_IndexParamAudioPortFormat: {
599        OMX_AUDIO_PARAM_PORTFORMATTYPE *p =
600            (OMX_AUDIO_PARAM_PORTFORMATTYPE *)pComponentParameterStructure;
601        OMX_U32 index = p->nPortIndex;
602        PortBase *port = NULL;
603
604        ret = CheckTypeHeader(p, sizeof(*p));
605        if (ret != OMX_ErrorNone)
606            return ret;
607
608        if (index < nr_ports)
609            port = ports[index];
610
611        if (!port)
612            return OMX_ErrorBadParameter;
613
614        if (port->IsEnabled()) {
615            if (state != OMX_StateLoaded && state != OMX_StateWaitForResources)
616                return OMX_ErrorIncorrectStateOperation;
617        }
618
619        port->SetAudioPortParam(p);
620        break;
621    }
622    case OMX_IndexParamCompBufferSupplier:
623        /*
624         * Todo
625         */
626
627        ret = OMX_ErrorUnsupportedIndex;
628        break;
629    case OMX_IndexParamStandardComponentRole: {
630        OMX_PARAM_COMPONENTROLETYPE *p =
631            (OMX_PARAM_COMPONENTROLETYPE *)pComponentParameterStructure;
632
633        if (state != OMX_StateLoaded && state != OMX_StateWaitForResources)
634            return OMX_ErrorIncorrectStateOperation;
635
636        ret = CheckTypeHeader(p, sizeof(*p));
637        if (ret != OMX_ErrorNone)
638            return ret;
639
640        ret = SetWorkingRole((OMX_STRING)p->cRole);
641        if (ret != OMX_ErrorNone)
642            return ret;
643
644        if (ports)
645            FreePorts();
646
647        ret = ApplyWorkingRole();
648        if (ret != OMX_ErrorNone) {
649            SetWorkingRole(NULL);
650            return ret;
651        }
652        break;
653    }
654    default:
655        ret = ComponentSetParameter(nIndex, pComponentParameterStructure);
656    } /* switch */
657
658    return ret;
659}
660
661OMX_ERRORTYPE ComponentBase::GetConfig(
662    OMX_IN  OMX_HANDLETYPE hComponent,
663    OMX_IN  OMX_INDEXTYPE nIndex,
664    OMX_INOUT OMX_PTR pComponentConfigStructure)
665{
666    ComponentBase *cbase;
667
668    if (!hComponent)
669        return OMX_ErrorBadParameter;
670
671    cbase = static_cast<ComponentBase *>
672        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
673    if (!cbase)
674        return OMX_ErrorBadParameter;
675
676    return cbase->CBaseGetConfig(hComponent, nIndex,
677                                 pComponentConfigStructure);
678}
679
680OMX_ERRORTYPE ComponentBase::CBaseGetConfig(
681    OMX_IN  OMX_HANDLETYPE hComponent,
682    OMX_IN  OMX_INDEXTYPE nIndex,
683    OMX_INOUT OMX_PTR pComponentConfigStructure)
684{
685    OMX_ERRORTYPE ret;
686
687    if (hComponent != handle)
688        return OMX_ErrorBadParameter;
689
690    switch (nIndex) {
691    default:
692        ret = ComponentGetConfig(nIndex, pComponentConfigStructure);
693    }
694
695    return ret;
696}
697
698OMX_ERRORTYPE ComponentBase::SetConfig(
699    OMX_IN  OMX_HANDLETYPE hComponent,
700    OMX_IN  OMX_INDEXTYPE nIndex,
701    OMX_IN  OMX_PTR pComponentConfigStructure)
702{
703    ComponentBase *cbase;
704
705    if (!hComponent)
706        return OMX_ErrorBadParameter;
707
708    cbase = static_cast<ComponentBase *>
709        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
710    if (!cbase)
711        return OMX_ErrorBadParameter;
712
713    return cbase->CBaseSetConfig(hComponent, nIndex,
714                                 pComponentConfigStructure);
715}
716
717OMX_ERRORTYPE ComponentBase::CBaseSetConfig(
718    OMX_IN  OMX_HANDLETYPE hComponent,
719    OMX_IN  OMX_INDEXTYPE nIndex,
720    OMX_IN  OMX_PTR pComponentConfigStructure)
721{
722    OMX_ERRORTYPE ret;
723
724    if (hComponent != handle)
725        return OMX_ErrorBadParameter;
726
727    switch (nIndex) {
728    default:
729        ret = ComponentSetConfig(nIndex, pComponentConfigStructure);
730    }
731
732    return ret;
733}
734
735OMX_ERRORTYPE ComponentBase::GetExtensionIndex(
736    OMX_IN  OMX_HANDLETYPE hComponent,
737    OMX_IN  OMX_STRING cParameterName,
738    OMX_OUT OMX_INDEXTYPE* pIndexType)
739{
740    ComponentBase *cbase;
741
742    if (!hComponent)
743        return OMX_ErrorBadParameter;
744
745    cbase = static_cast<ComponentBase *>
746        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
747    if (!cbase)
748        return OMX_ErrorBadParameter;
749
750    return cbase->CBaseGetExtensionIndex(hComponent, cParameterName,
751                                         pIndexType);
752}
753
754OMX_ERRORTYPE ComponentBase::CBaseGetExtensionIndex(
755    OMX_IN  OMX_HANDLETYPE hComponent,
756    OMX_IN  OMX_STRING cParameterName,
757    OMX_OUT OMX_INDEXTYPE* pIndexType)
758{
759    /*
760     * Todo
761     */
762
763    return OMX_ErrorNotImplemented;
764}
765
766OMX_ERRORTYPE ComponentBase::GetState(
767    OMX_IN  OMX_HANDLETYPE hComponent,
768    OMX_OUT OMX_STATETYPE* pState)
769{
770    ComponentBase *cbase;
771
772    if (!hComponent)
773        return OMX_ErrorBadParameter;
774
775    cbase = static_cast<ComponentBase *>
776        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
777    if (!cbase)
778        return OMX_ErrorBadParameter;
779
780    return cbase->CBaseGetState(hComponent, pState);
781}
782
783OMX_ERRORTYPE ComponentBase::CBaseGetState(
784    OMX_IN  OMX_HANDLETYPE hComponent,
785    OMX_OUT OMX_STATETYPE* pState)
786{
787    if (hComponent != handle)
788        return OMX_ErrorBadParameter;
789
790    *pState = state;
791    return OMX_ErrorNone;
792}
793
794OMX_ERRORTYPE ComponentBase::ComponentTunnelRequest(
795    OMX_IN  OMX_HANDLETYPE hComponent,
796    OMX_IN  OMX_U32 nPort,
797    OMX_IN  OMX_HANDLETYPE hTunneledComponent,
798    OMX_IN  OMX_U32 nTunneledPort,
799    OMX_INOUT  OMX_TUNNELSETUPTYPE* pTunnelSetup)
800{
801    ComponentBase *cbase;
802
803    if (!hComponent)
804        return OMX_ErrorBadParameter;
805
806    cbase = static_cast<ComponentBase *>
807        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
808    if (!cbase)
809        return OMX_ErrorBadParameter;
810
811    return cbase->CBaseComponentTunnelRequest(hComponent, nPort,
812                                              hTunneledComponent,
813                                              nTunneledPort, pTunnelSetup);
814}
815
816OMX_ERRORTYPE ComponentBase::CBaseComponentTunnelRequest(
817    OMX_IN  OMX_HANDLETYPE hComp,
818    OMX_IN  OMX_U32 nPort,
819    OMX_IN  OMX_HANDLETYPE hTunneledComp,
820    OMX_IN  OMX_U32 nTunneledPort,
821    OMX_INOUT  OMX_TUNNELSETUPTYPE* pTunnelSetup)
822{
823    /*
824     * Todo
825     */
826
827    return OMX_ErrorNotImplemented;
828}
829
830OMX_ERRORTYPE ComponentBase::UseBuffer(
831    OMX_IN OMX_HANDLETYPE hComponent,
832    OMX_INOUT OMX_BUFFERHEADERTYPE **ppBufferHdr,
833    OMX_IN OMX_U32 nPortIndex,
834    OMX_IN OMX_PTR pAppPrivate,
835    OMX_IN OMX_U32 nSizeBytes,
836    OMX_IN OMX_U8 *pBuffer)
837{
838    ComponentBase *cbase;
839
840    if (!hComponent)
841        return OMX_ErrorBadParameter;
842
843    cbase = static_cast<ComponentBase *>
844        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
845    if (!cbase)
846        return OMX_ErrorBadParameter;
847
848    return cbase->CBaseUseBuffer(hComponent, ppBufferHdr, nPortIndex,
849                                 pAppPrivate, nSizeBytes, pBuffer);
850}
851
852OMX_ERRORTYPE ComponentBase::CBaseUseBuffer(
853    OMX_IN OMX_HANDLETYPE hComponent,
854    OMX_INOUT OMX_BUFFERHEADERTYPE **ppBufferHdr,
855    OMX_IN OMX_U32 nPortIndex,
856    OMX_IN OMX_PTR pAppPrivate,
857    OMX_IN OMX_U32 nSizeBytes,
858    OMX_IN OMX_U8 *pBuffer)
859{
860    PortBase *port = NULL;
861    OMX_ERRORTYPE ret;
862
863    if (hComponent != handle)
864        return OMX_ErrorBadParameter;
865
866    if (!ppBufferHdr)
867        return OMX_ErrorBadParameter;
868    *ppBufferHdr = NULL;
869
870    if (!pBuffer)
871        return OMX_ErrorBadParameter;
872
873    if (ports)
874        if (nPortIndex < nr_ports)
875            port = ports[nPortIndex];
876
877    if (!port)
878        return OMX_ErrorBadParameter;
879
880    if (port->IsEnabled()) {
881        if (state != OMX_StateLoaded && state != OMX_StateWaitForResources)
882            return OMX_ErrorIncorrectStateOperation;
883    }
884
885    return port->UseBuffer(ppBufferHdr, nPortIndex, pAppPrivate, nSizeBytes,
886                           pBuffer);
887}
888
889OMX_ERRORTYPE ComponentBase::AllocateBuffer(
890    OMX_IN OMX_HANDLETYPE hComponent,
891    OMX_INOUT OMX_BUFFERHEADERTYPE **ppBuffer,
892    OMX_IN OMX_U32 nPortIndex,
893    OMX_IN OMX_PTR pAppPrivate,
894    OMX_IN OMX_U32 nSizeBytes)
895{
896    ComponentBase *cbase;
897
898    if (!hComponent)
899        return OMX_ErrorBadParameter;
900
901    cbase = static_cast<ComponentBase *>
902        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
903    if (!cbase)
904        return OMX_ErrorBadParameter;
905
906    return cbase->CBaseAllocateBuffer(hComponent, ppBuffer, nPortIndex,
907                                      pAppPrivate, nSizeBytes);
908}
909
910OMX_ERRORTYPE ComponentBase::CBaseAllocateBuffer(
911    OMX_IN OMX_HANDLETYPE hComponent,
912    OMX_INOUT OMX_BUFFERHEADERTYPE **ppBuffer,
913    OMX_IN OMX_U32 nPortIndex,
914    OMX_IN OMX_PTR pAppPrivate,
915    OMX_IN OMX_U32 nSizeBytes)
916{
917    PortBase *port = NULL;
918    OMX_ERRORTYPE ret;
919
920    if (hComponent != handle)
921        return OMX_ErrorBadParameter;
922
923    if (!ppBuffer)
924        return OMX_ErrorBadParameter;
925    *ppBuffer = NULL;
926
927    if (ports)
928        if (nPortIndex < nr_ports)
929            port = ports[nPortIndex];
930
931    if (!port)
932        return OMX_ErrorBadParameter;
933
934    if (port->IsEnabled()) {
935        if (state != OMX_StateLoaded && state != OMX_StateWaitForResources)
936            return OMX_ErrorIncorrectStateOperation;
937    }
938
939    return port->AllocateBuffer(ppBuffer, nPortIndex, pAppPrivate, nSizeBytes);
940}
941
942OMX_ERRORTYPE ComponentBase::FreeBuffer(
943    OMX_IN  OMX_HANDLETYPE hComponent,
944    OMX_IN  OMX_U32 nPortIndex,
945    OMX_IN  OMX_BUFFERHEADERTYPE *pBuffer)
946{
947    ComponentBase *cbase;
948
949    if (!hComponent)
950        return OMX_ErrorBadParameter;
951
952    cbase = static_cast<ComponentBase *>
953        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
954    if (!cbase)
955        return OMX_ErrorBadParameter;
956
957    return cbase->CBaseFreeBuffer(hComponent, nPortIndex, pBuffer);
958}
959
960OMX_ERRORTYPE ComponentBase::CBaseFreeBuffer(
961    OMX_IN  OMX_HANDLETYPE hComponent,
962    OMX_IN  OMX_U32 nPortIndex,
963    OMX_IN  OMX_BUFFERHEADERTYPE *pBuffer)
964{
965    PortBase *port = NULL;
966    OMX_ERRORTYPE ret;
967
968    if (hComponent != handle)
969        return OMX_ErrorBadParameter;
970
971    if (!pBuffer)
972        return OMX_ErrorBadParameter;
973
974    if (ports)
975        if (nPortIndex < nr_ports)
976            port = ports[nPortIndex];
977
978    if (!port)
979        return OMX_ErrorBadParameter;
980
981    return port->FreeBuffer(nPortIndex, pBuffer);
982}
983
984OMX_ERRORTYPE ComponentBase::EmptyThisBuffer(
985    OMX_IN  OMX_HANDLETYPE hComponent,
986    OMX_IN  OMX_BUFFERHEADERTYPE* pBuffer)
987{
988    ComponentBase *cbase;
989
990    if (!hComponent)
991        return OMX_ErrorBadParameter;
992
993    cbase = static_cast<ComponentBase *>
994        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
995    if (!cbase)
996        return OMX_ErrorBadParameter;
997
998    return cbase->CBaseEmptyThisBuffer(hComponent, pBuffer);
999}
1000
1001OMX_ERRORTYPE ComponentBase::CBaseEmptyThisBuffer(
1002    OMX_IN  OMX_HANDLETYPE hComponent,
1003    OMX_IN  OMX_BUFFERHEADERTYPE *pBuffer)
1004{
1005    PortBase *port = NULL;
1006    OMX_U32 port_index;
1007    OMX_ERRORTYPE ret;
1008
1009    if ((hComponent != handle) || !pBuffer)
1010        return OMX_ErrorBadParameter;
1011
1012    ret = CheckTypeHeader(pBuffer, sizeof(OMX_BUFFERHEADERTYPE));
1013    if (ret != OMX_ErrorNone)
1014        return ret;
1015
1016    port_index = pBuffer->nInputPortIndex;
1017    if (port_index == (OMX_U32)-1)
1018        return OMX_ErrorBadParameter;
1019
1020    if (ports)
1021        if (port_index < nr_ports)
1022            port = ports[port_index];
1023
1024    if (!port)
1025        return OMX_ErrorBadParameter;
1026
1027    if (pBuffer->pInputPortPrivate != port)
1028        return OMX_ErrorBadParameter;
1029
1030    if (port->IsEnabled()) {
1031        if (state != OMX_StateIdle && state != OMX_StateExecuting &&
1032            state != OMX_StatePause)
1033            return OMX_ErrorIncorrectStateOperation;
1034    }
1035
1036    ret = port->PushThisBuffer(pBuffer);
1037    if (ret == OMX_ErrorNone)
1038        bufferwork->ScheduleWork(this);
1039
1040    return ret;
1041}
1042
1043OMX_ERRORTYPE ComponentBase::FillThisBuffer(
1044    OMX_IN  OMX_HANDLETYPE hComponent,
1045    OMX_IN  OMX_BUFFERHEADERTYPE *pBuffer)
1046{
1047    ComponentBase *cbase;
1048
1049    if (!hComponent)
1050        return OMX_ErrorBadParameter;
1051
1052    cbase = static_cast<ComponentBase *>
1053        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
1054    if (!cbase)
1055        return OMX_ErrorBadParameter;
1056
1057    return cbase->CBaseFillThisBuffer(hComponent, pBuffer);
1058}
1059
1060OMX_ERRORTYPE ComponentBase::CBaseFillThisBuffer(
1061    OMX_IN  OMX_HANDLETYPE hComponent,
1062    OMX_IN  OMX_BUFFERHEADERTYPE *pBuffer)
1063{
1064    PortBase *port = NULL;
1065    OMX_U32 port_index;
1066    OMX_ERRORTYPE ret;
1067
1068    if ((hComponent != handle) || !pBuffer)
1069        return OMX_ErrorBadParameter;
1070
1071    ret = CheckTypeHeader(pBuffer, sizeof(OMX_BUFFERHEADERTYPE));
1072    if (ret != OMX_ErrorNone)
1073        return ret;
1074
1075    port_index = pBuffer->nOutputPortIndex;
1076    if (port_index == (OMX_U32)-1)
1077        return OMX_ErrorBadParameter;
1078
1079    if (ports)
1080        if (port_index < nr_ports)
1081            port = ports[port_index];
1082
1083    if (!port)
1084        return OMX_ErrorBadParameter;
1085
1086    if (pBuffer->pOutputPortPrivate != port)
1087        return OMX_ErrorBadParameter;
1088
1089    if (port->IsEnabled()) {
1090        if (state != OMX_StateIdle && state != OMX_StateExecuting &&
1091            state != OMX_StatePause)
1092            return OMX_ErrorIncorrectStateOperation;
1093    }
1094
1095    ret = port->PushThisBuffer(pBuffer);
1096    if (ret == OMX_ErrorNone)
1097        bufferwork->ScheduleWork(this);
1098
1099    return ret;
1100}
1101
1102OMX_ERRORTYPE ComponentBase::SetCallbacks(
1103    OMX_IN  OMX_HANDLETYPE hComponent,
1104    OMX_IN  OMX_CALLBACKTYPE* pCallbacks,
1105    OMX_IN  OMX_PTR pAppData)
1106{
1107    ComponentBase *cbase;
1108
1109    if (!hComponent)
1110        return OMX_ErrorBadParameter;
1111
1112    cbase = static_cast<ComponentBase *>
1113        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
1114    if (!cbase)
1115        return OMX_ErrorBadParameter;
1116
1117    return cbase->CBaseSetCallbacks(hComponent, pCallbacks, pAppData);
1118}
1119
1120OMX_ERRORTYPE ComponentBase::CBaseSetCallbacks(
1121    OMX_IN  OMX_HANDLETYPE hComponent,
1122    OMX_IN  OMX_CALLBACKTYPE *pCallbacks,
1123    OMX_IN  OMX_PTR pAppData)
1124{
1125    if (hComponent != handle)
1126        return OMX_ErrorBadParameter;
1127
1128    appdata = pAppData;
1129    callbacks = pCallbacks;
1130
1131    return OMX_ErrorNone;
1132}
1133
1134OMX_ERRORTYPE ComponentBase::ComponentDeInit(
1135    OMX_IN  OMX_HANDLETYPE hComponent)
1136{
1137    ComponentBase *cbase;
1138
1139    if (!hComponent)
1140        return OMX_ErrorBadParameter;
1141
1142    cbase = static_cast<ComponentBase *>
1143        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
1144    if (!cbase)
1145        return OMX_ErrorBadParameter;
1146
1147    return cbase->CBaseComponentDeInit(hComponent);
1148}
1149
1150OMX_ERRORTYPE ComponentBase::CBaseComponentDeInit(
1151    OMX_IN  OMX_HANDLETYPE hComponent)
1152{
1153    /*
1154     * Todo
1155     */
1156
1157    return OMX_ErrorNotImplemented;
1158}
1159
1160OMX_ERRORTYPE ComponentBase::UseEGLImage(
1161    OMX_IN OMX_HANDLETYPE hComponent,
1162    OMX_INOUT OMX_BUFFERHEADERTYPE** ppBufferHdr,
1163    OMX_IN OMX_U32 nPortIndex,
1164    OMX_IN OMX_PTR pAppPrivate,
1165    OMX_IN void* eglImage)
1166{
1167    ComponentBase *cbase;
1168
1169    if (!hComponent)
1170        return OMX_ErrorBadParameter;
1171
1172    cbase = static_cast<ComponentBase *>
1173        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
1174    if (!cbase)
1175        return OMX_ErrorBadParameter;
1176
1177    return cbase->CBaseUseEGLImage(hComponent, ppBufferHdr, nPortIndex,
1178                                   pAppPrivate, eglImage);
1179}
1180
1181OMX_ERRORTYPE ComponentBase::CBaseUseEGLImage(
1182    OMX_IN OMX_HANDLETYPE hComponent,
1183    OMX_INOUT OMX_BUFFERHEADERTYPE** ppBufferHdr,
1184    OMX_IN OMX_U32 nPortIndex,
1185    OMX_IN OMX_PTR pAppPrivate,
1186    OMX_IN void* eglImage)
1187{
1188    /*
1189     * Todo
1190     */
1191
1192    return OMX_ErrorNotImplemented;
1193}
1194
1195OMX_ERRORTYPE ComponentBase::ComponentRoleEnum(
1196    OMX_IN OMX_HANDLETYPE hComponent,
1197    OMX_OUT OMX_U8 *cRole,
1198    OMX_IN OMX_U32 nIndex)
1199{
1200    ComponentBase *cbase;
1201
1202    if (!hComponent)
1203        return OMX_ErrorBadParameter;
1204
1205    cbase = static_cast<ComponentBase *>
1206        (((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate);
1207    if (!cbase)
1208        return OMX_ErrorBadParameter;
1209
1210    return cbase->CBaseComponentRoleEnum(hComponent, cRole, nIndex);
1211}
1212
1213OMX_ERRORTYPE ComponentBase::CBaseComponentRoleEnum(
1214    OMX_IN OMX_HANDLETYPE hComponent,
1215    OMX_OUT OMX_U8 *cRole,
1216    OMX_IN OMX_U32 nIndex)
1217{
1218    if (hComponent != (OMX_HANDLETYPE *)this->handle)
1219        return OMX_ErrorBadParameter;
1220
1221    if (nIndex > nr_roles)
1222        return OMX_ErrorBadParameter;
1223
1224    strncpy((char *)cRole, (const char *)roles[nIndex],
1225            OMX_MAX_STRINGNAME_SIZE);
1226    return OMX_ErrorNone;
1227}
1228
1229/* implement CmdHandlerInterface */
1230void ComponentBase::CmdHandler(struct cmd_s *cmd)
1231{
1232    switch (cmd->cmd) {
1233    case OMX_CommandStateSet: {
1234        OMX_STATETYPE transition = (OMX_STATETYPE)cmd->param1;
1235
1236        TransState(transition);
1237        break;
1238    }
1239    case OMX_CommandFlush:
1240        /*
1241         * Todo
1242         */
1243        break;
1244    case OMX_CommandPortDisable:
1245        /*
1246         * Todo
1247         */
1248        break;
1249    case OMX_CommandPortEnable:
1250        /*
1251         * Todo
1252         */
1253        break;
1254    case OMX_CommandMarkBuffer:
1255        /*
1256         * Todo
1257         */
1258        break;
1259    } /* switch */
1260}
1261
1262/*
1263 * SendCommand:OMX_CommandStateSet
1264 * called in CmdHandler or called in other parts of component for reporting
1265 * internal error (OMX_StateInvalid).
1266 */
1267/*
1268 * Todo
1269 *   Resource Management (OMX_StateWaitForResources)
1270 *   for now, we never notify OMX_ErrorInsufficientResources,
1271 *   so IL client doesn't try to set component' state OMX_StateWaitForResources
1272 */
1273static const char *state_name[OMX_StateWaitForResources + 1] = {
1274    "OMX_StateInvalid",
1275    "OMX_StateLoaded",
1276    "OMX_StateIdle",
1277    "OMX_StateExecuting",
1278    "OMX_StatePause",
1279    "OMX_StateWaitForResources",
1280};
1281
1282static inline const char *GetStateName(OMX_STATETYPE state)
1283{
1284    if (state > OMX_StateWaitForResources)
1285        return "UnKnown";
1286
1287    return state_name[state];
1288}
1289
1290void ComponentBase::TransState(OMX_STATETYPE transition)
1291{
1292    OMX_STATETYPE current = this->state;
1293    OMX_EVENTTYPE event;
1294    OMX_U32 data1, data2;
1295    OMX_ERRORTYPE ret;
1296
1297    LOGD("current state = %s, transition state = %s\n",
1298         GetStateName(current), GetStateName(transition));
1299
1300    /* same state */
1301    if (current == transition) {
1302        ret = OMX_ErrorSameState;
1303        goto notify_event;
1304    }
1305
1306    /* invalid state */
1307    if (current == OMX_StateInvalid) {
1308        ret = OMX_ErrorInvalidState;
1309        goto notify_event;
1310    }
1311
1312    if (transition == OMX_StateLoaded)
1313        ret = TransStateToLoaded(current);
1314    else if (transition == OMX_StateIdle)
1315        ret = TransStateToIdle(current);
1316    else if (transition == OMX_StateExecuting)
1317        ret = TransStateToExecuting(current);
1318    else if (transition == OMX_StatePause)
1319        ret = TransStateToPause(current);
1320    else if (transition == OMX_StateInvalid)
1321        ret = TransStateToInvalid(current);
1322    else if (transition == OMX_StateWaitForResources)
1323        ret = TransStateToWaitForResources(current);
1324    else
1325        ret = OMX_ErrorIncorrectStateTransition;
1326
1327notify_event:
1328    if (ret == OMX_ErrorNone) {
1329        event = OMX_EventCmdComplete;
1330        data1 = OMX_CommandStateSet;
1331        data2 = transition;
1332
1333        state = transition;
1334        LOGD("transition from %s to %s completed\n",
1335             GetStateName(current), GetStateName(transition));
1336    }
1337    else {
1338        event = OMX_EventError;
1339        data1 = ret;
1340        data2 = 0;
1341
1342        if (transition == OMX_StateInvalid) {
1343            state = transition;
1344            LOGD("transition from %s to %s completed\n",
1345                 GetStateName(current), GetStateName(transition));
1346        }
1347    }
1348
1349    callbacks->EventHandler(handle, appdata, event, data1, data2, NULL);
1350
1351    /* WaitForResources workaround */
1352    if (ret == OMX_ErrorNone && transition == OMX_StateWaitForResources)
1353        callbacks->EventHandler(handle, appdata,
1354                                OMX_EventResourcesAcquired, 0, 0, NULL);
1355}
1356
1357inline OMX_ERRORTYPE ComponentBase::TransStateToLoaded(OMX_STATETYPE current)
1358{
1359    OMX_ERRORTYPE ret;
1360
1361    if (current == OMX_StateIdle) {
1362        /*
1363         * Todo
1364         *   1. waits for completion of deallocation on each port
1365         *      wokeup by FreeBuffer()
1366         *   2. deinitialize buffer process work
1367         *   3. deinitialize component's internal processor
1368         *      (ex. deinitialize sw/hw codec)
1369         */
1370        OMX_U32 i;
1371
1372        for (i = 0; i < nr_ports; i++)
1373            ports[i]->WaitPortBufferCompletion();
1374
1375        ret = OMX_ErrorNone;
1376    }
1377    else if (current == OMX_StateWaitForResources) {
1378        LOGE("state transition's requested from WaitForResources to "
1379             "Loaded\n");
1380
1381        /*
1382         * from WaitForResources to Loaded considered from Loaded to Loaded.
1383         * do nothing
1384         */
1385
1386        ret = OMX_ErrorNone;
1387    }
1388    else
1389        ret = OMX_ErrorIncorrectStateOperation;
1390
1391    return ret;
1392}
1393
1394inline OMX_ERRORTYPE ComponentBase::TransStateToIdle(OMX_STATETYPE current)
1395{
1396    OMX_ERRORTYPE ret;
1397
1398    if (current == OMX_StateLoaded) {
1399        /*
1400         * Todo
1401         *   1. waits for completion of allocation on each port.
1402         *      wokeup by Allocate/UseBuffer()
1403         *   2. initialize buffer process work.
1404         *   3. initialize component's internal processor.
1405         *      (ex. initialize sw/hw codec)
1406         */
1407        OMX_U32 i;
1408
1409        for (i = 0; i < nr_ports; i++)
1410            ports[i]->WaitPortBufferCompletion();
1411
1412        ret = OMX_ErrorNone;
1413    }
1414    else if (current == OMX_StateExecuting) {
1415        /*
1416         * Todo
1417         *   1. returns all buffers to thier suppliers.         !
1418         *      call Fill/EmptyBufferDone() for all ports
1419         *   2. stop buffer process work                        !
1420         *   3. stop component's internal processor
1421         */
1422        OMX_U32 i;
1423
1424        pthread_mutex_lock(&ports_block);
1425        for (i = 0; i < nr_ports; i++) {
1426            ports[i]->FlushPort();
1427        }
1428        pthread_mutex_unlock(&ports_block);
1429
1430        bufferwork->StopWork();
1431
1432        ret = OMX_ErrorNone;
1433    }
1434    else if (current == OMX_StatePause) {
1435        /*
1436         * Todo
1437         *   1. returns all buffers to thier suppliers.         !
1438         *      call Fill/EmptyBufferDone() for all ports
1439         *   2. discard queued work, stop buffer process work   !
1440         *   3. stop component's internal processor
1441         */
1442        OMX_U32 i;
1443
1444        pthread_mutex_lock(&ports_block);
1445        for (i = 0; i < nr_ports; i++) {
1446            ports[i]->FlushPort();
1447        }
1448        pthread_mutex_unlock(&ports_block);
1449
1450        bufferwork->CancelScheduledWork(this);
1451        bufferwork->StopWork();
1452
1453        ret = OMX_ErrorNone;
1454    }
1455    else if (current == OMX_StateWaitForResources) {
1456        LOGE("state transition's requested from WaitForResources to Idle\n");
1457
1458        /* same as Loaded to Idle BUT DO NOTHING for now */
1459
1460        ret = OMX_ErrorNone;
1461    }
1462    else
1463        ret = OMX_ErrorIncorrectStateOperation;
1464
1465    return ret;
1466}
1467
1468inline OMX_ERRORTYPE
1469ComponentBase::TransStateToExecuting(OMX_STATETYPE current)
1470{
1471    OMX_ERRORTYPE ret;
1472
1473    if (current == OMX_StateIdle) {
1474        /*
1475         * Todo
1476         *   1. start component's internal processor
1477         *   2. start processing buffers on each port   !
1478         */
1479
1480        pthread_mutex_lock(&executing_lock);
1481        executing = true;
1482        pthread_mutex_unlock(&executing_lock);
1483
1484        bufferwork->StartWork();
1485        ret = OMX_ErrorNone;
1486    }
1487    else if (current == OMX_StatePause) {
1488        /*
1489         * Todo
1490         *   1. resume component's internal processor
1491         *   2. resume buffer process work              !
1492         */
1493
1494        pthread_mutex_lock(&executing_lock);
1495        executing = true;
1496        pthread_cond_signal(&executing_wait);
1497        pthread_mutex_unlock(&executing_lock);
1498
1499        ret = OMX_ErrorNone;
1500    }
1501    else
1502        ret = OMX_ErrorIncorrectStateOperation;
1503
1504    return ret;
1505}
1506
1507inline OMX_ERRORTYPE ComponentBase::TransStateToPause(OMX_STATETYPE current)
1508{
1509    OMX_ERRORTYPE ret;
1510
1511    if (current == OMX_StateIdle) {
1512        /*
1513         * Todo
1514         *   1. start(paused) component's internal processor
1515         *   2. start(paused) processing buffers on each port   !
1516         */
1517
1518        /* turn off executing flag */
1519        pthread_mutex_lock(&executing_lock);
1520        executing = false;
1521        pthread_mutex_unlock(&executing_lock);
1522
1523        bufferwork->StartWork();
1524
1525        ret = OMX_ErrorNone;
1526    }
1527    else if (current == OMX_StateExecuting) {
1528        /*
1529         * Todo
1530         *   1. pause buffer process work               !
1531         *   2. pause component's internal processor
1532         */
1533
1534        pthread_mutex_lock(&executing_lock);
1535        executing = false;
1536        pthread_mutex_unlock(&executing_lock);
1537
1538        ret = OMX_ErrorNone;
1539    }
1540    else
1541        ret = OMX_ErrorIncorrectStateOperation;
1542
1543    return ret;
1544}
1545
1546inline OMX_ERRORTYPE ComponentBase::TransStateToInvalid(OMX_STATETYPE current)
1547{
1548    OMX_ERRORTYPE ret = OMX_ErrorInvalidState;
1549
1550    /*
1551     * Todo
1552     *   graceful escape
1553     */
1554
1555    return ret;
1556}
1557
1558inline OMX_ERRORTYPE
1559ComponentBase::TransStateToWaitForResources(OMX_STATETYPE current)
1560{
1561    OMX_ERRORTYPE ret;
1562
1563    if (current == OMX_StateLoaded) {
1564        LOGE("state transition's requested from Loaded to WaitForResources\n");
1565        ret = OMX_ErrorNone;
1566    }
1567    else
1568        ret = OMX_ErrorIncorrectStateOperation;
1569
1570    return ret;
1571}
1572
1573/* set working role */
1574OMX_ERRORTYPE ComponentBase::SetWorkingRole(const OMX_STRING role)
1575{
1576    OMX_U32 i;
1577
1578    if (state != OMX_StateUnloaded && state != OMX_StateLoaded)
1579        return OMX_ErrorIncorrectStateOperation;
1580
1581    if (!role) {
1582        working_role = NULL;
1583        return OMX_ErrorNone;
1584    }
1585
1586    for (i = 0; i < nr_roles; i++) {
1587        if (!strcmp((char *)&roles[i][0], role)) {
1588            working_role = (OMX_STRING)&roles[i][0];
1589            return OMX_ErrorNone;
1590        }
1591    }
1592
1593    LOGE("cannot find %s role in %s\n", role, name);
1594    return OMX_ErrorBadParameter;
1595}
1596
1597/* apply a working role for a component having multiple roles */
1598OMX_ERRORTYPE ComponentBase::ApplyWorkingRole(void)
1599{
1600    OMX_U32 i;
1601    OMX_ERRORTYPE ret;
1602
1603    if (state != OMX_StateUnloaded && state != OMX_StateLoaded)
1604        return OMX_ErrorIncorrectStateOperation;
1605
1606    if (!working_role)
1607        return OMX_ErrorBadParameter;
1608
1609    if (!callbacks || !appdata)
1610        return OMX_ErrorBadParameter;
1611
1612    ret = AllocatePorts();
1613    if (ret != OMX_ErrorNone) {
1614        LOGE("failed to AllocatePorts() (ret = 0x%08x)\n", ret);
1615        return ret;
1616    }
1617
1618    /* now we can access ports */
1619    for (i = 0; i < nr_ports; i++) {
1620        ports[i]->SetOwner(handle);
1621        ports[i]->SetCallbacks(handle, callbacks, appdata);
1622    }
1623
1624    return OMX_ErrorNone;
1625}
1626
1627OMX_ERRORTYPE ComponentBase::AllocatePorts(void)
1628{
1629    OMX_ERRORTYPE ret;
1630
1631    if (ports)
1632        return OMX_ErrorBadParameter;
1633
1634    ret = ComponentAllocatePorts();
1635    if (ret != OMX_ErrorNone) {
1636        LOGE("failed to %s::ComponentAllocatePorts(), ret = 0x%08x\n",
1637             name, ret);
1638        return ret;
1639    }
1640
1641    return OMX_ErrorNone;
1642}
1643
1644/* called int FreeHandle() */
1645OMX_ERRORTYPE ComponentBase::FreePorts(void)
1646{
1647    if (ports) {
1648        OMX_U32 i, this_nr_ports = this->nr_ports;
1649
1650        for (i = 0; i < this_nr_ports; i++) {
1651            if (ports[i]) {
1652                delete ports[i];
1653                ports[i] = NULL;
1654            }
1655        }
1656        delete []ports;
1657        ports = NULL;
1658    }
1659
1660    return OMX_ErrorNone;
1661}
1662
1663/* buffer processing */
1664/* implement WorkableInterface */
1665void ComponentBase::Work(void)
1666{
1667    OMX_BUFFERHEADERTYPE **buffers = NULL;
1668    OMX_U32 i;
1669    bool avail = false;
1670
1671    pthread_mutex_lock(&executing_lock);
1672    if (!executing)
1673        pthread_cond_wait(&executing_wait, &executing_lock);
1674    pthread_mutex_unlock(&executing_lock);
1675
1676    pthread_mutex_lock(&ports_block);
1677
1678    avail = IsAllBufferAvailable();
1679    if (avail) {
1680        buffers = (OMX_BUFFERHEADERTYPE **)
1681            calloc(nr_ports, sizeof(OMX_BUFFERHEADERTYPE *));
1682        if (!buffers) {
1683            bufferwork->ScheduleWork(this);
1684            return;
1685        }
1686
1687        for (i = 0; i < nr_ports; i++)
1688            buffers[i] = ports[i]->PopBuffer();
1689    }
1690    ScheduleIfAllBufferAvailable();
1691
1692    pthread_mutex_unlock(&ports_block);
1693
1694    if (buffers) {
1695        ComponentProcessBuffers(buffers, nr_ports);
1696
1697        free(buffers);
1698        buffers = NULL;
1699    }
1700}
1701
1702bool ComponentBase::IsAllBufferAvailable(void)
1703{
1704    OMX_U32 i;
1705    OMX_U32 nr_avail = 0;
1706
1707    for (i = 0; i < nr_ports; i++) {
1708        OMX_U32 length;
1709
1710        length = ports[i]->BufferQueueLength();
1711        if (length)
1712            nr_avail++;
1713    }
1714
1715    if (nr_avail == nr_ports)
1716        return true;
1717    else
1718        return false;
1719}
1720
1721void ComponentBase::ScheduleIfAllBufferAvailable(void)
1722{
1723    bool avail;
1724
1725    avail = IsAllBufferAvailable();
1726    if (avail)
1727        bufferwork->ScheduleWork(this);
1728}
1729
1730/* end of component methods & helpers */
1731
1732/*
1733 * omx header manipuation
1734 */
1735void ComponentBase::SetTypeHeader(OMX_PTR type, OMX_U32 size)
1736{
1737    OMX_U32 *nsize;
1738    OMX_VERSIONTYPE *nversion;
1739
1740    if (!type)
1741        return;
1742
1743    nsize = (OMX_U32 *)type;
1744    nversion = (OMX_VERSIONTYPE *)((OMX_U8 *)type + sizeof(OMX_U32));
1745
1746    *nsize = size;
1747    nversion->nVersion = OMX_SPEC_VERSION;
1748}
1749
1750OMX_ERRORTYPE ComponentBase::CheckTypeHeader(OMX_PTR type, OMX_U32 size)
1751{
1752    OMX_U32 *nsize;
1753    OMX_VERSIONTYPE *nversion;
1754
1755    if (!type)
1756        return OMX_ErrorBadParameter;
1757
1758    nsize = (OMX_U32 *)type;
1759    nversion = (OMX_VERSIONTYPE *)((OMX_U8 *)type + sizeof(OMX_U32));
1760
1761    if (*nsize != size)
1762        return OMX_ErrorBadParameter;
1763
1764    if (nversion->nVersion != OMX_SPEC_VERSION)
1765        return OMX_ErrorVersionMismatch;
1766
1767    return OMX_ErrorNone;
1768}
1769
1770/*
1771 * query_roles helper
1772 */
1773OMX_ERRORTYPE ComponentBase::QueryRolesHelper(
1774    OMX_U32 nr_comp_roles,
1775    const OMX_U8 **comp_roles,
1776    OMX_U32 *nr_roles, OMX_U8 **roles)
1777{
1778    OMX_U32 i;
1779
1780    if (!roles) {
1781        *nr_roles = nr_comp_roles;
1782        return OMX_ErrorNone;
1783    }
1784
1785    if (!nr_roles || (*nr_roles != nr_comp_roles) || !roles)
1786        return OMX_ErrorBadParameter;
1787
1788    for (i = 0; i < nr_comp_roles; i++) {
1789        if (!roles[i])
1790            break;
1791
1792        strncpy((OMX_STRING)&roles[i][0],
1793                (const OMX_STRING)&comp_roles[i][0], OMX_MAX_STRINGNAME_SIZE);
1794    }
1795
1796    if (i != nr_comp_roles)
1797        return OMX_ErrorBadParameter;
1798
1799    *nr_roles = nr_comp_roles;
1800    return OMX_ErrorNone;
1801}
1802
1803/* end of ComponentBase */
1804