1 /*----------------------------------------------------------------------------
2  *
3  * File:
4  * jet.c
5  *
6  * Contents and purpose:
7  * Implementation for JET sound engine
8  *
9  * Copyright (c) 2006 Sonic Network Inc.
10 
11  * Licensed under the Apache License, Version 2.0 (the "License");
12  * you may not use this file except in compliance with the License.
13  * You may obtain a copy of the License at
14  *
15  *      http://www.apache.org/licenses/LICENSE-2.0
16  *
17  * Unless required by applicable law or agreed to in writing, software
18  * distributed under the License is distributed on an "AS IS" BASIS,
19  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
20  * See the License for the specific language governing permissions and
21  * limitations under the License.
22  *----------------------------------------------------------------------------
23  * Revision Control:
24  *   $Revision: 563 $
25  *   $Date: 2007-02-13 20:26:23 -0800 (Tue, 13 Feb 2007) $
26  *----------------------------------------------------------------------------
27 */
28 
29 //#define LOG_NDEBUG 0
30 #define LOG_TAG "JET_C"
31 
32 //#define DEBUG_JET
33 
34 #include "eas_data.h"
35 #include "eas_smf.h"
36 #include "jet_data.h"
37 #include "eas_host.h"
38 #include "eas_report.h"
39 
40 
41 /* default configuration */
42 static const S_JET_CONFIG jetDefaultConfig =
43 {
44     JET_EVENT_APP_LOW,
45     JET_EVENT_APP_HIGH
46 };
47 
48 /* function prototypes */
49 extern EAS_RESULT EAS_IntSetStrmParam (S_EAS_DATA *pEASData, EAS_HANDLE pStream, EAS_INT param, EAS_I32 value);
50 extern EAS_RESULT EAS_OpenJETStream (EAS_DATA_HANDLE pEASData, EAS_FILE_HANDLE fileHandle, EAS_I32 offset, EAS_HANDLE *ppStream);
51 extern EAS_RESULT DLSParser (EAS_HW_DATA_HANDLE hwInstData, EAS_FILE_HANDLE fileHandle, EAS_I32 offset, EAS_DLSLIB_HANDLE *ppDLS);
52 
53 /*----------------------------------------------------------------------------
54  * JET_ParseEvent()
55  *----------------------------------------------------------------------------
56  * Returns current status
57  *----------------------------------------------------------------------------
58 */
JET_ParseEvent(EAS_U32 event,S_JET_EVENT * pEvent)59 EAS_PUBLIC void JET_ParseEvent (EAS_U32 event, S_JET_EVENT *pEvent)
60 {
61     pEvent->segment = (EAS_U8) ((event & JET_EVENT_SEG_MASK) >> JET_EVENT_SEG_SHIFT);
62     pEvent->track = (EAS_U8) ((event & JET_EVENT_TRACK_MASK) >> JET_EVENT_TRACK_SHIFT);
63     pEvent->channel = (EAS_U8) ((event & JET_EVENT_CHAN_MASK) >> JET_EVENT_CHAN_SHIFT);
64     pEvent->controller = (EAS_U8) ((event & JET_EVENT_CTRL_MASK) >> JET_EVENT_CTRL_SHIFT);
65     pEvent->value = (EAS_U8) (event & JET_EVENT_VAL_MASK);
66 }
67 
68 #ifdef DEBUG_JET
69 /*----------------------------------------------------------------------------
70  * JET_DumpEvent
71  *----------------------------------------------------------------------------
72  * Advances queue read/write index
73  *----------------------------------------------------------------------------
74 */
JET_DumpEvent(const char * procName,EAS_U32 event)75 static void JET_DumpEvent (const char *procName, EAS_U32 event)
76 {
77     S_JET_EVENT sEvent;
78     JET_ParseEvent(event, &sEvent);
79     { /* dpp: EAS_ReportEx(_EAS_SEVERITY_INFO, "%s: SegID=%d, TrkID=%d, channel=%d, ctrl=%d, val=%d\n",
80         procName, sEvent.segment, sEvent.track, sEvent.channel, sEvent.controller, sEvent.value); */ }
81 }
82 #endif
83 
84 /*----------------------------------------------------------------------------
85  * JET_IncQueueIndex
86  *----------------------------------------------------------------------------
87  * Advances queue read/write index
88  *----------------------------------------------------------------------------
89 */
JET_IncQueueIndex(EAS_U8 index,EAS_U8 queueSize)90 EAS_INLINE EAS_U8 JET_IncQueueIndex (EAS_U8 index, EAS_U8 queueSize)
91 {
92     if (++index == queueSize)
93         index = 0;
94     return index;
95 }
96 
97 /*----------------------------------------------------------------------------
98  * JET_WriteQueue
99  *----------------------------------------------------------------------------
100  * Save event to queue
101  *----------------------------------------------------------------------------
102 */
JET_WriteQueue(EAS_U32 * pEventQueue,EAS_U8 * pWriteIndex,EAS_U8 readIndex,EAS_U8 queueSize,EAS_U32 event)103 EAS_INLINE void JET_WriteQueue (EAS_U32 *pEventQueue, EAS_U8 *pWriteIndex, EAS_U8 readIndex, EAS_U8 queueSize, EAS_U32 event)
104 {
105     EAS_U8 temp;
106 
107     /* check for queue overflow */
108     temp = JET_IncQueueIndex(*pWriteIndex, queueSize);
109     if (temp == readIndex)
110     {
111         { /* dpp: EAS_ReportEx(_EAS_SEVERITY_WARNING, "JET_Event: Event queue overflow --- event ignored!\n"); */ }
112         return;
113     }
114 
115     /* save in queue and advance write index */
116     pEventQueue[*pWriteIndex] = event;
117     *pWriteIndex = temp;
118 }
119 
120 /*----------------------------------------------------------------------------
121  * JET_ReadQueue
122  *----------------------------------------------------------------------------
123  * Read event to queue
124  *----------------------------------------------------------------------------
125 */
JET_ReadQueue(EAS_U32 * pEventQueue,EAS_U8 * pReadIndex,EAS_U8 writeIndex,EAS_U8 queueSize,EAS_U32 * pEvent)126 EAS_INLINE EAS_BOOL JET_ReadQueue (EAS_U32 *pEventQueue, EAS_U8 *pReadIndex, EAS_U8 writeIndex, EAS_U8 queueSize, EAS_U32 *pEvent)
127 {
128 
129     /* check for empty queue */
130     if (*pReadIndex == writeIndex)
131         return EAS_FALSE;
132 
133     /* save in queue and advance write index */
134     *pEvent = pEventQueue[*pReadIndex];
135     *pReadIndex = JET_IncQueueIndex(*pReadIndex, queueSize);
136     return EAS_TRUE;
137 }
138 
139 /*----------------------------------------------------------------------------
140  * JET_NextSegment
141  *----------------------------------------------------------------------------
142  * Advances segment number
143  *----------------------------------------------------------------------------
144 */
JET_NextSegment(EAS_INT seg_num)145 EAS_INLINE EAS_INT JET_NextSegment (EAS_INT seg_num)
146 {
147     if (++seg_num == SEG_QUEUE_DEPTH)
148         seg_num = 0;
149     return seg_num;
150 }
151 
152 /*----------------------------------------------------------------------------
153  * JET_PrepareSegment()
154  *----------------------------------------------------------------------------
155  * Prepare a segment for playback
156  *----------------------------------------------------------------------------
157 */
JET_PrepareSegment(EAS_DATA_HANDLE easHandle,EAS_I32 queueNum)158 static EAS_RESULT JET_PrepareSegment (EAS_DATA_HANDLE easHandle, EAS_I32 queueNum)
159 {
160     EAS_RESULT result;
161     S_JET_SEGMENT *p;
162 
163     { /* dpp: EAS_ReportEx(_EAS_SEVERITY_INFO, "JET_PrepareSegment: %d\n", queueNum); */ }
164 
165     p = &easHandle->jetHandle->segQueue[queueNum];
166     result = EAS_Prepare(easHandle, p->streamHandle);
167     if (result != EAS_SUCCESS)
168         return result;
169 
170     /* pause segment - must be triggered by play or end of previous segment */
171     result = EAS_Pause(easHandle, p->streamHandle);
172     if (result != EAS_SUCCESS)
173         return result;
174     p->state = JET_STATE_READY;
175 
176     /* set calback data */
177     result = EAS_IntSetStrmParam(easHandle, p->streamHandle, PARSER_DATA_JET_CB, queueNum);
178     if (result != EAS_SUCCESS)
179         return result;
180 
181     /* set DLS collection */
182     if (p->libNum >= 0)
183     {
184         result = EAS_IntSetStrmParam(easHandle, p->streamHandle,
185             PARSER_DATA_DLS_COLLECTION, (EAS_I32) easHandle->jetHandle->libHandles[p->libNum]);
186         if (result != EAS_SUCCESS)
187             return result;
188     }
189 
190     /* set transposition */
191     if (p->transpose)
192     {
193         result = EAS_SetTransposition(easHandle, p->streamHandle, p->transpose);
194         if (result != EAS_SUCCESS)
195             return result;
196     }
197 
198     return result;
199 }
200 
201 /*----------------------------------------------------------------------------
202  * JET_StartPlayback()
203  *----------------------------------------------------------------------------
204  * Start segment playback
205  *----------------------------------------------------------------------------
206 */
JET_StartPlayback(EAS_DATA_HANDLE easHandle,EAS_I32 queueNum)207 static EAS_RESULT JET_StartPlayback (EAS_DATA_HANDLE easHandle, EAS_I32 queueNum)
208 {
209     EAS_RESULT result = EAS_SUCCESS;
210     S_JET_SEGMENT *pSeg;
211 
212     { /* dpp: EAS_ReportEx(_EAS_SEVERITY_INFO, "JET_StartPlayback %d\n", queueNum); */ }
213 
214     /* if next segment is queued, start playback */
215     pSeg = &easHandle->jetHandle->segQueue[queueNum];
216     if (pSeg->streamHandle != NULL)
217     {
218         result = EAS_Resume(easHandle, pSeg->streamHandle);
219         easHandle->jetHandle->segQueue[queueNum].state = JET_STATE_PLAYING;
220 
221         /* set mute flags */
222         if ((result == EAS_SUCCESS) && (pSeg->muteFlags != 0))
223             result = EAS_IntSetStrmParam(easHandle, pSeg->streamHandle, PARSER_DATA_MUTE_FLAGS, (EAS_I32) pSeg->muteFlags);
224     }
225     return result;
226 }
227 
228 /*----------------------------------------------------------------------------
229  * JET_CloseSegment
230  *----------------------------------------------------------------------------
231  * Closes stream associated with a segment
232  *----------------------------------------------------------------------------
233 */
JET_CloseSegment(EAS_DATA_HANDLE easHandle,EAS_INT queueNum)234 EAS_INLINE EAS_INT JET_CloseSegment (EAS_DATA_HANDLE easHandle, EAS_INT queueNum)
235 {
236     EAS_RESULT result;
237 
238     { /* dpp: EAS_ReportEx(_EAS_SEVERITY_INFO, "JET_CloseSegment %d\n", queueNum); */ }
239 
240     /* close the segment */
241     result = EAS_CloseFile(easHandle, easHandle->jetHandle->segQueue[queueNum].streamHandle);
242     if (result != EAS_SUCCESS)
243         return result;
244 
245     easHandle->jetHandle->segQueue[queueNum].streamHandle = NULL;
246     easHandle->jetHandle->segQueue[queueNum].state = JET_STATE_CLOSED;
247     easHandle->jetHandle->numQueuedSegments--;
248     return result;
249 }
250 
251 /*----------------------------------------------------------------------------
252  * JetParseInfoChunk()
253  *----------------------------------------------------------------------------
254  * Parses the JET info chunk
255  *----------------------------------------------------------------------------
256 */
JetParseInfoChunk(EAS_DATA_HANDLE easHandle,EAS_I32 pos,EAS_I32 chunkSize)257 static EAS_RESULT JetParseInfoChunk (EAS_DATA_HANDLE easHandle, EAS_I32 pos, EAS_I32 chunkSize)
258 {
259     EAS_RESULT result;
260     EAS_U32 infoType;
261     EAS_U32 temp;
262 
263     /* offset to data */
264     result = EAS_HWFileSeek(easHandle->hwInstData, easHandle->jetHandle->jetFileHandle, pos);
265     if (result != EAS_SUCCESS)
266         return result;
267 
268     /* read the entire chunk */
269     result = EAS_SUCCESS;
270     while ((result == EAS_SUCCESS) && (chunkSize > 0))
271     {
272 
273         /* get info infoType */
274         result = EAS_HWGetDWord(easHandle->hwInstData, easHandle->jetHandle->jetFileHandle, &infoType, EAS_TRUE);
275         if (result != EAS_SUCCESS)
276             break;
277 
278         /* get info field */
279         result = EAS_HWGetDWord(easHandle->hwInstData, easHandle->jetHandle->jetFileHandle, &temp, EAS_FALSE);
280         if (result == EAS_SUCCESS)
281 
282         switch (infoType)
283         {
284             case INFO_NUM_SMF_CHUNKS:
285                 if (temp >= JET_MAX_SEGMENTS) {
286                     return EAS_ERROR_INCOMPATIBLE_VERSION;
287                 }
288                 easHandle->jetHandle->numSegments = (EAS_U8) temp;
289                 break;
290 
291             case INFO_NUM_DLS_CHUNKS:
292                 if (temp >= JET_MAX_DLS_COLLECTIONS) {
293                     return EAS_ERROR_INCOMPATIBLE_VERSION;
294                 }
295                 easHandle->jetHandle->numLibraries = (EAS_U8) temp;
296                 break;
297 
298             case INFO_JET_VERSION:
299                 /* check major version number */
300                 if ((temp & 0xff000000) != (JET_VERSION & 0xff000000))
301                     return EAS_ERROR_INCOMPATIBLE_VERSION;
302                 break;
303 
304             default:
305                 { /* dpp: EAS_ReportEx(_EAS_SEVERITY_WARNING, "Ignoring unrecognized JET info type 0x%08x", infoType); */ }
306                 break;
307         }
308 
309         chunkSize -= 8;
310     }
311 
312     /* allocate pointers for chunks to follow */
313 
314     return result;
315 }
316 
317 /*----------------------------------------------------------------------------
318  * JET_OpenFile()
319  *----------------------------------------------------------------------------
320  * Opens a JET content file for playback
321  *----------------------------------------------------------------------------
322 */
JET_OpenFile(EAS_DATA_HANDLE easHandle,EAS_FILE_LOCATOR locator)323 EAS_PUBLIC EAS_RESULT JET_OpenFile (EAS_DATA_HANDLE easHandle, EAS_FILE_LOCATOR locator)
324 {
325     EAS_RESULT result;
326     EAS_U32 chunkType;
327     EAS_I32 pos;
328     EAS_I32 chunkSize;
329     EAS_INT smfChunkNum;
330     EAS_INT dlsChunkNum;
331     EAS_I32 dataSize = 0; /* make lint happy */
332 
333     /* make sure that we don't have an open file */
334     if (easHandle->jetHandle->jetFileHandle != NULL)
335         return EAS_ERROR_FILE_ALREADY_OPEN;
336 
337     /* open the media file */
338     result = EAS_HWOpenFile(easHandle->hwInstData, locator, &easHandle->jetHandle->jetFileHandle, EAS_FILE_READ);
339     if (result != EAS_SUCCESS)
340         return result;
341 
342     /* check header */
343     result = EAS_HWGetDWord(easHandle->hwInstData, easHandle->jetHandle->jetFileHandle, &chunkType, EAS_TRUE);
344     if (result == EAS_SUCCESS)
345     {
346         if (chunkType != JET_HEADER_TAG)
347         {
348             { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "File is not JET format\n"); */ }
349             result = EAS_ERROR_UNRECOGNIZED_FORMAT;
350         }
351     }
352     /* get the file data size */
353     if (result == EAS_SUCCESS)
354         result = EAS_HWGetDWord(easHandle->hwInstData, easHandle->jetHandle->jetFileHandle, &dataSize, EAS_FALSE);
355 
356     /* parse through the file to find contents */
357     smfChunkNum = dlsChunkNum = 0;
358     pos = chunkSize = 8;
359     while ((result == EAS_SUCCESS) && (pos < dataSize))
360     {
361 
362         /* offset to chunk data */
363         result = EAS_HWFileSeek(easHandle->hwInstData, easHandle->jetHandle->jetFileHandle, pos);
364         if (result != EAS_SUCCESS)
365             break;
366 
367         /* get chunk size and type */
368         result = EAS_HWGetDWord(easHandle->hwInstData, easHandle->jetHandle->jetFileHandle, &chunkType, EAS_TRUE);
369         if (result != EAS_SUCCESS)
370             break;
371 
372         result = EAS_HWGetDWord(easHandle->hwInstData, easHandle->jetHandle->jetFileHandle, &chunkSize, EAS_FALSE);
373         if (result != EAS_SUCCESS)
374             break;
375         pos += 8;
376 
377         switch (chunkType)
378         {
379             case JET_INFO_CHUNK:
380                 result = JetParseInfoChunk(easHandle, pos, chunkSize);
381                 break;
382 
383             case JET_SMF_CHUNK:
384                 if (smfChunkNum < easHandle->jetHandle->numSegments)
385                     easHandle->jetHandle->segmentOffsets[smfChunkNum++] = pos;
386                 else
387                     { /* dpp: EAS_ReportEx(_EAS_SEVERITY_WARNING, "Ignoring extraneous SMF chunk"); */ }
388                 break;
389 
390             case JET_DLS_CHUNK:
391                 if (dlsChunkNum < easHandle->jetHandle->numLibraries)
392                     result = DLSParser(easHandle->hwInstData, easHandle->jetHandle->jetFileHandle, pos, &easHandle->jetHandle->libHandles[dlsChunkNum++]);
393                 else
394                     { /* dpp: EAS_ReportEx(_EAS_SEVERITY_WARNING, "Ignoring extraneous DLS chunk"); */ }
395                 break;
396 
397             case JET_APP_DATA_CHUNK:
398                 easHandle->jetHandle->appDataOffset = pos;
399                 easHandle->jetHandle->appDataSize = chunkSize;
400                 break;
401 
402             case INFO_JET_COPYRIGHT:
403                 break;
404 
405             default:
406                 { /* dpp: EAS_ReportEx(_EAS_SEVERITY_WARNING, "Ignoring unrecognized JET chunk type 0x%08x", chunkType); */ }
407                 break;
408         }
409 
410         /* offset to next chunk */
411         pos += chunkSize;
412     }
413 
414     /* close file if something went wrong */
415     if (result != EAS_SUCCESS)
416         EAS_HWCloseFile(easHandle->hwInstData, easHandle->jetHandle->jetFileHandle);
417 
418     return result;
419 }
420 
421 /*----------------------------------------------------------------------------
422  * JET_GetAppData()
423  *----------------------------------------------------------------------------
424  * Returns location and size of application data in the JET file
425  *----------------------------------------------------------------------------
426 */
JET_GetAppData(EAS_DATA_HANDLE easHandle,EAS_I32 * pAppDataOffset,EAS_I32 * pAppDataSize)427 EAS_RESULT JET_GetAppData (EAS_DATA_HANDLE easHandle, EAS_I32 *pAppDataOffset, EAS_I32 *pAppDataSize)
428 {
429 
430     /* check for app chunk */
431     if (easHandle->jetHandle->appDataSize == 0)
432     {
433         *pAppDataOffset = *pAppDataSize = 0;
434         return EAS_FAILURE;
435     }
436 
437     /* return app data */
438     *pAppDataOffset = easHandle->jetHandle->appDataOffset;
439     *pAppDataSize = easHandle->jetHandle->appDataSize;
440     return EAS_SUCCESS;
441 }
442 
443 /*----------------------------------------------------------------------------
444  * JET_CloseFile()
445  *----------------------------------------------------------------------------
446  * Closes a JET content file and releases associated resources
447  *----------------------------------------------------------------------------
448 */
JET_CloseFile(EAS_DATA_HANDLE easHandle)449 EAS_PUBLIC EAS_RESULT JET_CloseFile (EAS_DATA_HANDLE easHandle)
450 {
451     EAS_INT index;
452     EAS_RESULT result = EAS_SUCCESS;
453 
454     /* close open streams */
455     for (index = 0; index < SEG_QUEUE_DEPTH; index++)
456     {
457         if (easHandle->jetHandle->segQueue[index].streamHandle != NULL)
458         {
459             result = JET_CloseSegment(easHandle, index);
460             if (result != EAS_SUCCESS)
461                 break;
462         }
463     }
464 
465     /* close the main file handle */
466     if ((result == EAS_SUCCESS) && (easHandle->jetHandle->jetFileHandle != NULL))
467     {
468         result = EAS_HWCloseFile(easHandle->hwInstData, easHandle->jetHandle->jetFileHandle);
469         if (result == EAS_SUCCESS)
470             easHandle->jetHandle->jetFileHandle = NULL;
471     }
472     return result;
473 }
474 
475 /*----------------------------------------------------------------------------
476  * JET_Init()
477  *----------------------------------------------------------------------------
478  * Initializes the JET library, allocates memory, etc. Call
479  * JET_Shutdown to de-allocate memory.
480  *----------------------------------------------------------------------------
481 */
JET_Init(EAS_DATA_HANDLE easHandle,const S_JET_CONFIG * pConfig,EAS_INT configSize)482 EAS_PUBLIC EAS_RESULT JET_Init (EAS_DATA_HANDLE easHandle, const S_JET_CONFIG *pConfig, EAS_INT configSize)
483 {
484     S_JET_DATA *pJet;
485     EAS_U8 flags = 0;
486 
487     /* sanity check */
488     if (easHandle == NULL)
489         return EAS_ERROR_HANDLE_INTEGRITY;
490     if (easHandle->jetHandle != NULL)
491         return EAS_ERROR_FEATURE_ALREADY_ACTIVE;
492     if (pConfig == NULL)
493         pConfig = &jetDefaultConfig;
494 
495     /* allocate the JET data object */
496     pJet = EAS_HWMalloc(easHandle->hwInstData, sizeof(S_JET_DATA));
497     if (pJet == NULL)
498         return EAS_ERROR_MALLOC_FAILED;
499 
500     /* initialize JET data structure */
501     EAS_HWMemSet(pJet, 0, sizeof(S_JET_DATA));
502     easHandle->jetHandle = pJet;
503     pJet->flags = flags;
504 
505     /* copy config data */
506     if (configSize > (EAS_INT) sizeof(S_JET_CONFIG))
507         configSize = sizeof(S_JET_CONFIG);
508     EAS_HWMemCpy(&pJet->config, pConfig, configSize);
509     return EAS_SUCCESS;
510 }
511 
512 /*----------------------------------------------------------------------------
513  * JET_Shutdown()
514  *----------------------------------------------------------------------------
515  * Frees any memory used by the JET library
516  *----------------------------------------------------------------------------
517 */
JET_Shutdown(EAS_DATA_HANDLE easHandle)518 EAS_PUBLIC EAS_RESULT JET_Shutdown (EAS_DATA_HANDLE easHandle)
519 {
520     EAS_RESULT result;
521 
522     /* close any open files */
523     result = JET_CloseFile(easHandle);
524 
525     /* free allocated data */
526     EAS_HWFree(easHandle->hwInstData, easHandle->jetHandle);
527     easHandle->jetHandle = NULL;
528     return result;
529 }
530 
531 /*----------------------------------------------------------------------------
532  * JET_Status()
533  *----------------------------------------------------------------------------
534  * Returns current status
535  *----------------------------------------------------------------------------
536 */
JET_Status(EAS_DATA_HANDLE easHandle,S_JET_STATUS * pStatus)537 EAS_PUBLIC EAS_RESULT JET_Status (EAS_DATA_HANDLE easHandle, S_JET_STATUS *pStatus)
538 {
539     S_JET_SEGMENT *pSeg;
540 
541     pSeg = &easHandle->jetHandle->segQueue[easHandle->jetHandle->playSegment];
542     if (pSeg->streamHandle != NULL)
543     {
544         pStatus->currentUserID = pSeg->userID;
545         pStatus->segmentRepeatCount = pSeg->repeatCount;
546     }
547     else
548     {
549         pStatus->currentUserID = -1;
550         pStatus->segmentRepeatCount = 0;
551     }
552 
553     pStatus->paused = !(easHandle->jetHandle->flags & JET_FLAGS_PLAYING);
554     pStatus->numQueuedSegments = easHandle->jetHandle->numQueuedSegments;
555     pStatus->currentPlayingSegment = easHandle->jetHandle->playSegment;
556     pStatus->currentQueuedSegment = easHandle->jetHandle->queueSegment;
557     if (pSeg->streamHandle != NULL)
558     {
559         EAS_RESULT result;
560         EAS_I32 location ;
561         if ((result = EAS_GetLocation(easHandle, pSeg->streamHandle, &location)) == EAS_SUCCESS)
562             if(location != 0)
563             {
564                 pStatus->location = location;
565             }
566     }
567     return EAS_SUCCESS;
568 }
569 
570 /*----------------------------------------------------------------------------
571  * JET_GetEvent()
572  *----------------------------------------------------------------------------
573  * Checks for application events
574  *----------------------------------------------------------------------------
575 */
JET_GetEvent(EAS_DATA_HANDLE easHandle,EAS_U32 * pEventRaw,S_JET_EVENT * pEvent)576 EAS_PUBLIC EAS_BOOL JET_GetEvent (EAS_DATA_HANDLE easHandle, EAS_U32 *pEventRaw, S_JET_EVENT *pEvent)
577 {
578     EAS_U32 jetEvent;
579     EAS_BOOL gotEvent;
580 
581     /* process event queue */
582     gotEvent = JET_ReadQueue(easHandle->jetHandle->appEventQueue,
583         &easHandle->jetHandle->appEventQueueRead,
584         easHandle->jetHandle->appEventQueueWrite,
585         APP_EVENT_QUEUE_SIZE, &jetEvent);
586 
587     if (gotEvent)
588     {
589         if (pEventRaw != NULL)
590             *pEventRaw = jetEvent;
591 
592         if (pEvent != NULL)
593             JET_ParseEvent(jetEvent, pEvent);
594     }
595 
596     return gotEvent;
597 }
598 
599 /*----------------------------------------------------------------------------
600  * JET_QueueSegment()
601  *----------------------------------------------------------------------------
602  * Queue a segment for playback
603  *----------------------------------------------------------------------------
604 */
JET_QueueSegment(EAS_DATA_HANDLE easHandle,EAS_INT segmentNum,EAS_INT libNum,EAS_INT repeatCount,EAS_INT transpose,EAS_U32 muteFlags,EAS_U8 userID)605 EAS_PUBLIC EAS_RESULT JET_QueueSegment (EAS_DATA_HANDLE easHandle, EAS_INT segmentNum, EAS_INT libNum, EAS_INT repeatCount, EAS_INT transpose, EAS_U32 muteFlags, EAS_U8 userID)
606 {
607     EAS_FILE_HANDLE fileHandle;
608     EAS_RESULT result;
609     S_JET_SEGMENT *p;
610 
611     { /* dpp: EAS_ReportEx(_EAS_SEVERITY_INFO, "JET_QueueSegment segNum=%d, queue=%d\n", segmentNum, easHandle->jetHandle->queueSegment); */ }
612 
613     /* make sure it's a valid segment */
614     if (segmentNum >= easHandle->jetHandle->numSegments)
615         return EAS_ERROR_PARAMETER_RANGE;
616 
617     /* make sure it's a valid DLS */
618     if (libNum >= easHandle->jetHandle->numLibraries)
619         return EAS_ERROR_PARAMETER_RANGE;
620 
621     /* check to see if queue is full */
622     p = &easHandle->jetHandle->segQueue[easHandle->jetHandle->queueSegment];
623     if (p->streamHandle != NULL)
624         return EAS_ERROR_QUEUE_IS_FULL;
625 
626     /* initialize data */
627     p->userID = userID;
628     p->repeatCount = (EAS_I16) repeatCount;
629     p->transpose = (EAS_I8) transpose;
630     p->libNum = (EAS_I8) libNum;
631     p->muteFlags = muteFlags;
632     p->state = JET_STATE_CLOSED;
633 
634     /* open the file */
635     result = EAS_OpenJETStream(easHandle, easHandle->jetHandle->jetFileHandle, easHandle->jetHandle->segmentOffsets[segmentNum], &p->streamHandle);
636     if (result != EAS_SUCCESS)
637         return result;
638     p->state = JET_STATE_OPEN;
639 
640     /* if less than SEG_QUEUE_DEPTH segments queued up, prepare file for playback */
641     if (++easHandle->jetHandle->numQueuedSegments < SEG_QUEUE_DEPTH)
642     {
643         result = JET_PrepareSegment(easHandle, easHandle->jetHandle->queueSegment);
644         if (result != EAS_SUCCESS)
645             return result;
646     }
647 
648     /* create duplicate file handle */
649     result = EAS_HWDupHandle(easHandle->hwInstData, easHandle->jetHandle->jetFileHandle, &fileHandle);
650     if (result != EAS_SUCCESS)
651         return result;
652 
653     easHandle->jetHandle->jetFileHandle = fileHandle;
654     easHandle->jetHandle->queueSegment = (EAS_U8) JET_NextSegment(easHandle->jetHandle->queueSegment);
655     return result;
656 }
657 
658 /*----------------------------------------------------------------------------
659  * JET_Play()
660  *----------------------------------------------------------------------------
661  * Starts playback of the file
662  *----------------------------------------------------------------------------
663 */
JET_Play(EAS_DATA_HANDLE easHandle)664 EAS_PUBLIC EAS_RESULT JET_Play (EAS_DATA_HANDLE easHandle)
665 {
666     EAS_RESULT result;
667     EAS_INT index;
668     EAS_INT count = 0;
669 
670     { /* dpp: EAS_ReportEx(_EAS_SEVERITY_INFO, "JET_Play\n"); */ }
671 
672     /* sanity check */
673     if (easHandle->jetHandle->flags & JET_FLAGS_PLAYING)
674         return EAS_ERROR_NOT_VALID_IN_THIS_STATE;
675 
676     /* resume all paused streams */
677     for (index = 0; index < SEG_QUEUE_DEPTH; index++)
678     {
679         if (((index == easHandle->jetHandle->playSegment) && (easHandle->jetHandle->segQueue[index].state == JET_STATE_READY)) ||
680             (easHandle->jetHandle->segQueue[index].state == JET_STATE_PAUSED))
681         {
682             result = JET_StartPlayback(easHandle, index);
683             if (result != EAS_SUCCESS)
684                 return result;
685             count++;
686         }
687     }
688 
689     /* if no streams are playing, return error */
690     if (!count)
691         return EAS_ERROR_QUEUE_IS_EMPTY;
692 
693     easHandle->jetHandle->flags |= JET_FLAGS_PLAYING;
694     return EAS_SUCCESS;
695 }
696 
697 /*----------------------------------------------------------------------------
698  * JET_Pause()
699  *----------------------------------------------------------------------------
700  * Pauses playback of the file
701  *----------------------------------------------------------------------------
702 */
JET_Pause(EAS_DATA_HANDLE easHandle)703 EAS_PUBLIC EAS_RESULT JET_Pause (EAS_DATA_HANDLE easHandle)
704 {
705     EAS_RESULT result;
706     EAS_INT index;
707     EAS_INT count = 0;
708 
709     { /* dpp: EAS_ReportEx(_EAS_SEVERITY_INFO, "JET_Pause\n"); */ }
710 
711     /* sanity check */
712     if ((easHandle->jetHandle->flags & JET_FLAGS_PLAYING) == 0)
713         return EAS_ERROR_NOT_VALID_IN_THIS_STATE;
714 
715     /* pause all playing streams */
716     for (index = 0; index < SEG_QUEUE_DEPTH; index++)
717     {
718         if (easHandle->jetHandle->segQueue[index].state == JET_STATE_PLAYING)
719         {
720             result = EAS_Pause(easHandle, easHandle->jetHandle->segQueue[easHandle->jetHandle->playSegment].streamHandle);
721             if (result != EAS_SUCCESS)
722                 return result;
723             easHandle->jetHandle->segQueue[easHandle->jetHandle->playSegment].state = JET_STATE_PAUSED;
724             count++;
725         }
726     }
727 
728     /* if no streams are paused, return error */
729     if (!count)
730         return EAS_ERROR_QUEUE_IS_EMPTY;
731 
732     easHandle->jetHandle->flags &= ~JET_FLAGS_PLAYING;
733     return EAS_SUCCESS;
734 }
735 
736 /*----------------------------------------------------------------------------
737  * JET_SetMuteFlags()
738  *----------------------------------------------------------------------------
739  * Change the state of the mute flags
740  *----------------------------------------------------------------------------
741 */
JET_SetMuteFlags(EAS_DATA_HANDLE easHandle,EAS_U32 muteFlags,EAS_BOOL sync)742 EAS_PUBLIC EAS_RESULT JET_SetMuteFlags (EAS_DATA_HANDLE easHandle, EAS_U32 muteFlags, EAS_BOOL sync)
743 {
744     S_JET_SEGMENT *pSeg;
745 
746     /* get pointer to current segment */
747     pSeg = &easHandle->jetHandle->segQueue[easHandle->jetHandle->playSegment];
748 
749     /* unsynchronized mute, set flags and return */
750     if (!sync)
751     {
752         if (pSeg->streamHandle == NULL)
753             return EAS_ERROR_QUEUE_IS_EMPTY;
754         pSeg->muteFlags = muteFlags;
755         return EAS_IntSetStrmParam(easHandle, pSeg->streamHandle, PARSER_DATA_MUTE_FLAGS, (EAS_I32) muteFlags);
756     }
757 
758 
759     /* check for valid stream state */
760     if (pSeg->state == JET_STATE_CLOSED)
761         return EAS_ERROR_QUEUE_IS_EMPTY;
762 
763     /* save mute flags */
764     pSeg->muteFlags = muteFlags;
765 
766     /* if repeating segment, set mute update flag */
767     if (sync)
768         pSeg->flags |= JET_SEG_FLAG_MUTE_UPDATE;
769     return EAS_SUCCESS;
770 }
771 
772 /*----------------------------------------------------------------------------
773  * JET_SetMuteFlag()
774  *----------------------------------------------------------------------------
775  * Change the state of a single mute flag
776  *----------------------------------------------------------------------------
777 */
JET_SetMuteFlag(EAS_DATA_HANDLE easHandle,EAS_INT trackNum,EAS_BOOL muteFlag,EAS_BOOL sync)778 EAS_PUBLIC EAS_RESULT JET_SetMuteFlag (EAS_DATA_HANDLE easHandle, EAS_INT trackNum, EAS_BOOL muteFlag, EAS_BOOL sync)
779 {
780     S_JET_SEGMENT *pSeg;
781     EAS_U32 trackMuteFlag;
782 
783 
784     /* setup flag */
785     if ((trackNum < 0) || (trackNum > 31))
786         return EAS_ERROR_PARAMETER_RANGE;
787     trackMuteFlag = (1 << trackNum);
788 
789     /* get pointer to current segment */
790     pSeg = &easHandle->jetHandle->segQueue[easHandle->jetHandle->playSegment];
791 
792     /* unsynchronized mute, set flags and return */
793     if (!sync)
794     {
795         if (pSeg->streamHandle == NULL)
796             return EAS_ERROR_QUEUE_IS_EMPTY;
797         if (muteFlag)
798             pSeg->muteFlags |= trackMuteFlag;
799         else
800             pSeg->muteFlags &= ~trackMuteFlag;
801         return EAS_IntSetStrmParam(easHandle, pSeg->streamHandle, PARSER_DATA_MUTE_FLAGS, (EAS_I32) pSeg->muteFlags);
802     }
803 
804 
805     /* check for valid stream state */
806     if (pSeg->state == JET_STATE_CLOSED)
807         return EAS_ERROR_QUEUE_IS_EMPTY;
808 
809     /* save mute flags and set mute update flag */
810     if (muteFlag)
811         pSeg->muteFlags |= trackMuteFlag;
812     else
813         pSeg->muteFlags &= ~trackMuteFlag;
814     pSeg->flags |= JET_SEG_FLAG_MUTE_UPDATE;
815     return EAS_SUCCESS;
816 }
817 
818 /*----------------------------------------------------------------------------
819  * JET_TriggerClip()
820  *----------------------------------------------------------------------------
821  * Unmute a track and then mute it when it is complete. If a clip
822  * is already playing, change mute event to a trigger event. The
823  * JET_Event function will not mute the clip, but will allow it
824  * to continue playing through the next clip.
825  *
826  * NOTE: We use bit 7 to indicate an entry in the queue. For a
827  * small queue, it is cheaper in both memory and CPU cycles to
828  * scan the entire queue for non-zero events than keep enqueue
829  * and dequeue indices.
830  *----------------------------------------------------------------------------
831 */
JET_TriggerClip(EAS_DATA_HANDLE easHandle,EAS_INT clipID)832 EAS_PUBLIC EAS_RESULT JET_TriggerClip (EAS_DATA_HANDLE easHandle, EAS_INT clipID)
833 {
834     EAS_INT i;
835     EAS_INT index = -1;
836 
837     /* check for valid clipID */
838     if ((clipID < 0) || (clipID > 63))
839         return EAS_ERROR_PARAMETER_RANGE;
840 
841     /* set active flag */
842     clipID |= JET_CLIP_ACTIVE_FLAG;
843 
844     /* Reverse the search so that we get the first empty element */
845     for (i = JET_MUTE_QUEUE_SIZE-1; i >= 0 ; i--)
846     {
847         if (easHandle->jetHandle->muteQueue[i] == clipID)
848         {
849             index = i;
850             break;
851         }
852         if (easHandle->jetHandle->muteQueue[i] == 0)
853             index = i;
854     }
855     if (index < 0)
856         return EAS_ERROR_QUEUE_IS_FULL;
857 
858     easHandle->jetHandle->muteQueue[index] = (EAS_U8) clipID | JET_CLIP_TRIGGER_FLAG;
859     return EAS_SUCCESS;
860 }
861 
862 /*----------------------------------------------------------------------------
863  * JET_Process()
864  *----------------------------------------------------------------------------
865  * Called during EAS_Render to process stream states
866  *----------------------------------------------------------------------------
867 */
JET_Process(EAS_DATA_HANDLE easHandle)868 EAS_PUBLIC EAS_RESULT JET_Process (EAS_DATA_HANDLE easHandle)
869 {
870     S_JET_SEGMENT *pSeg;
871     EAS_STATE state;
872     EAS_INT index;
873     EAS_INT playIndex;
874     EAS_RESULT result = EAS_SUCCESS;
875     EAS_BOOL endOfLoop = EAS_FALSE;
876     EAS_BOOL startNextSegment = EAS_FALSE;
877     EAS_BOOL prepareNextSegment = EAS_FALSE;
878     EAS_U32 jetEvent;
879 
880     /* process event queue */
881     while (JET_ReadQueue(easHandle->jetHandle->jetEventQueue,
882         &easHandle->jetHandle->jetEventQueueRead,
883         easHandle->jetHandle->jetEventQueueWrite,
884         JET_EVENT_QUEUE_SIZE, &jetEvent))
885     {
886         S_JET_EVENT event;
887 #ifdef DEBUG_JET
888         JET_DumpEvent("JET_Process", jetEvent);
889 #endif
890         JET_ParseEvent(jetEvent, &event);
891 
892         /* check for end of loop */
893         if ((event.controller == JET_EVENT_MARKER) &&
894                 (event.value == JET_MARKER_LOOP_END) &&
895                 (easHandle->jetHandle->segQueue[easHandle->jetHandle->playSegment].streamHandle != NULL))
896             endOfLoop = EAS_TRUE;
897     }
898 
899     /* check state of all streams */
900     index = playIndex = easHandle->jetHandle->playSegment;
901     for (;;)
902     {
903         pSeg = &easHandle->jetHandle->segQueue[index];
904         if (pSeg->state != JET_STATE_CLOSED)
905         {
906 
907             /* get playback state */
908             result = EAS_State(easHandle, pSeg->streamHandle, &state);
909             if (result != EAS_SUCCESS)
910                 return result;
911 
912             /* process state */
913             switch (pSeg->state)
914             {
915                 /* take action if this segment is stopping */
916                 case JET_STATE_PLAYING:
917                     if (endOfLoop || (state == EAS_STATE_STOPPING) || (state == EAS_STATE_STOPPED))
918                     {
919                         /* handle repeats */
920                         if (pSeg->repeatCount != 0)
921                         {
922                             { /* dpp: EAS_ReportEx(_EAS_SEVERITY_INFO, "JET_Render repeating segment %d\n", index); */ }
923                             result = EAS_Locate(easHandle, pSeg->streamHandle, 0, EAS_FALSE);
924                             if (result != EAS_SUCCESS)
925                                 return result;
926                             if (pSeg->repeatCount > 0)
927                                 pSeg->repeatCount--;
928 
929                             /* update mute flags if necessary */
930                             if (pSeg->flags & JET_SEG_FLAG_MUTE_UPDATE)
931                             {
932                                 result = EAS_IntSetStrmParam(easHandle, pSeg->streamHandle, PARSER_DATA_MUTE_FLAGS, (EAS_I32) pSeg->muteFlags);
933                                 if (result != EAS_SUCCESS)
934                                     return result;
935                                 pSeg->flags &= ~JET_SEG_FLAG_MUTE_UPDATE;
936                             }
937 
938                         }
939                         /* no repeat, start next segment */
940                         else
941                         {
942                             { /* dpp: EAS_ReportEx(_EAS_SEVERITY_INFO, "JET_Render stopping queue %d\n", index); */ }
943                             startNextSegment = EAS_TRUE;
944                             pSeg->state = JET_STATE_STOPPING;
945                             easHandle->jetHandle->playSegment = (EAS_U8) JET_NextSegment(index);
946                         }
947                     }
948                     break;
949 
950                 /* if playback has stopped, close the segment */
951                 case JET_STATE_STOPPING:
952                     if (state == EAS_STATE_STOPPED)
953                     {
954                         result = JET_CloseSegment(easHandle, index);
955                         if (result != EAS_SUCCESS)
956                             return result;
957                     }
958                     break;
959 
960                 case JET_STATE_READY:
961                     if (startNextSegment)
962                     {
963                         result = JET_StartPlayback(easHandle, index);
964                         if (result != EAS_SUCCESS)
965                             return result;
966                         startNextSegment = EAS_FALSE;
967                         prepareNextSegment = EAS_TRUE;
968                     }
969                     break;
970 
971                 case JET_STATE_OPEN:
972                     if (prepareNextSegment)
973                     {
974                         result = JET_PrepareSegment(easHandle, index);
975                         if (result != EAS_SUCCESS)
976                             return result;
977                         prepareNextSegment = EAS_FALSE;
978                     }
979                     break;
980 
981                 case JET_STATE_PAUSED:
982                     break;
983 
984                 default:
985                     { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "JET_Render: Unexpected segment state %d\n", pSeg->state); */ }
986                     break;
987             }
988         }
989 
990         /* increment index */
991         index = JET_NextSegment(index);
992         if (index == playIndex)
993             break;
994     }
995 
996     /* if out of segments, clear playing flag */
997     if (easHandle->jetHandle->numQueuedSegments == 0)
998         easHandle->jetHandle->flags &= ~JET_FLAGS_PLAYING;
999 
1000     return result;
1001 }
1002 
1003 /*----------------------------------------------------------------------------
1004  * JET_Event()
1005  *----------------------------------------------------------------------------
1006  * Called from MIDI parser when data of interest is received
1007  *----------------------------------------------------------------------------
1008 */
JET_Event(EAS_DATA_HANDLE easHandle,EAS_U32 segTrack,EAS_U8 channel,EAS_U8 controller,EAS_U8 value)1009 void JET_Event (EAS_DATA_HANDLE easHandle, EAS_U32 segTrack, EAS_U8 channel, EAS_U8 controller, EAS_U8 value)
1010 {
1011     EAS_U32 event;
1012 
1013     if (easHandle->jetHandle == NULL)
1014         return;
1015 
1016     /* handle triggers */
1017     if (controller == JET_EVENT_TRIGGER_CLIP)
1018     {
1019         S_JET_SEGMENT *pSeg;
1020         EAS_INT i;
1021         EAS_U32 muteFlag;
1022 
1023         for (i = 0; i < JET_MUTE_QUEUE_SIZE; i++)
1024         {
1025             /* search for event in queue */
1026             if ((easHandle->jetHandle->muteQueue[i] & JET_CLIP_ID_MASK) == (value & JET_CLIP_ID_MASK))
1027             {
1028                 /* get segment pointer and mute flag */
1029                 pSeg = &easHandle->jetHandle->segQueue[segTrack >> JET_EVENT_SEG_SHIFT];
1030                 muteFlag = 1 << ((segTrack & JET_EVENT_TRACK_MASK) >> JET_EVENT_TRACK_SHIFT);
1031 
1032                 /* un-mute the track */
1033                 if ((easHandle->jetHandle->muteQueue[i] & JET_CLIP_TRIGGER_FLAG) && ((value & 0x40) > 0))
1034                 {
1035                     pSeg->muteFlags &= ~muteFlag;
1036                     easHandle->jetHandle->muteQueue[i] &= ~JET_CLIP_TRIGGER_FLAG;
1037                 }
1038 
1039                 /* mute the track */
1040                 else
1041                 {
1042                     EAS_U32 beforeMute ;
1043                     beforeMute = pSeg->muteFlags ;
1044                     pSeg->muteFlags |= muteFlag;
1045                     if (beforeMute != pSeg->muteFlags)
1046                         easHandle->jetHandle->muteQueue[i] = 0;
1047                 }
1048                 EAS_IntSetStrmParam(easHandle, pSeg->streamHandle, PARSER_DATA_MUTE_FLAGS, (EAS_I32) pSeg->muteFlags);
1049                 return;
1050             }
1051         }
1052         return;
1053     }
1054 
1055     /* generic event stuff */
1056     event = (channel << JET_EVENT_CHAN_SHIFT) | (controller << JET_EVENT_CTRL_SHIFT) | value;
1057 
1058     /* write to app queue, translate queue index to segment number */
1059     if ((controller >= easHandle->jetHandle->config.appEventRangeLow) && (controller <= easHandle->jetHandle->config.appEventRangeHigh))
1060     {
1061 
1062         event |= easHandle->jetHandle->segQueue[(segTrack & JET_EVENT_SEG_MASK) >> JET_EVENT_SEG_SHIFT].userID << JET_EVENT_SEG_SHIFT;
1063 #ifdef DEBUG_JET
1064         JET_DumpEvent("JET_Event[app]", event);
1065 #endif
1066         JET_WriteQueue(easHandle->jetHandle->appEventQueue,
1067             &easHandle->jetHandle->appEventQueueWrite,
1068             easHandle->jetHandle->appEventQueueRead,
1069             APP_EVENT_QUEUE_SIZE,
1070             event);
1071     }
1072 
1073     /* write to JET queue */
1074     else if ((controller >= JET_EVENT_LOW) && (controller <= JET_EVENT_HIGH))
1075     {
1076         event |= segTrack;
1077 #ifdef DEBUG_JET
1078         JET_DumpEvent("JET_Event[jet]", event);
1079 #endif
1080         JET_WriteQueue(easHandle->jetHandle->jetEventQueue,
1081             &easHandle->jetHandle->jetEventQueueWrite,
1082             easHandle->jetHandle->jetEventQueueRead,
1083             JET_EVENT_QUEUE_SIZE,
1084             event);
1085     }
1086 }
1087 
1088 /*----------------------------------------------------------------------------
1089  * JET_Clear_Queue()
1090  *----------------------------------------------------------------------------
1091  * Clears the queue and stops play without a complete shutdown
1092  *----------------------------------------------------------------------------
1093 */
JET_Clear_Queue(EAS_DATA_HANDLE easHandle)1094 EAS_RESULT JET_Clear_Queue(EAS_DATA_HANDLE easHandle)
1095 {
1096     EAS_INT index;
1097     EAS_RESULT result = EAS_SUCCESS;
1098 
1099     { /* dpp: EAS_ReportEx(_EAS_SEVERITY_INFO, "JET_Clear_Queue\n"); */ }
1100 
1101     /* pause all playing streams */
1102     for (index = 0; index < SEG_QUEUE_DEPTH; index++)
1103     {
1104         if (easHandle->jetHandle->segQueue[index].state == JET_STATE_PLAYING)
1105         {
1106             result = EAS_Pause(easHandle, easHandle->jetHandle->segQueue[index].streamHandle);
1107             if (result != EAS_SUCCESS)
1108                 return result;
1109 
1110             easHandle->jetHandle->segQueue[index].state = JET_STATE_PAUSED;
1111         }
1112     }
1113 
1114     /* close all streams */
1115     for (index = 0; index < SEG_QUEUE_DEPTH; index++)
1116     {
1117         if (easHandle->jetHandle->segQueue[index].streamHandle != NULL)
1118         {
1119             result = JET_CloseSegment(easHandle, index);
1120             if (result != EAS_SUCCESS)
1121                 return result;
1122         }
1123     }
1124 
1125     /* clear all clips */
1126     for (index = 0; index < JET_MUTE_QUEUE_SIZE ; index++)
1127     {
1128         easHandle->jetHandle->muteQueue[index] = 0;
1129     }
1130 
1131     easHandle->jetHandle->flags &= ~JET_FLAGS_PLAYING;
1132     easHandle->jetHandle->playSegment = easHandle->jetHandle->queueSegment = 0;
1133     return result;
1134 }
1135 
1136