1 /* ------------------------------------------------------------------
2 * Copyright (C) 1998-2009 PacketVideo
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
13 * express or implied.
14 * See the License for the specific language governing permissions
15 * and limitations under the License.
16 * -------------------------------------------------------------------
17 */
18
19 #include "mp4enc_lib.h"
20 #include "bitstream_io.h"
21 #include "rate_control.h"
22 #include "m4venc_oscl.h"
23
24 #ifndef INT32_MAX
25 #define INT32_MAX 0x7fffffff
26 #endif
27
28 #ifndef SIZE_MAX
29 #define SIZE_MAX ((size_t) -1)
30 #endif
31
32 /* Inverse normal zigzag */
33 const static Int zigzag_i[NCOEFF_BLOCK] =
34 {
35 0, 1, 8, 16, 9, 2, 3, 10,
36 17, 24, 32, 25, 18, 11, 4, 5,
37 12, 19, 26, 33, 40, 48, 41, 34,
38 27, 20, 13, 6, 7, 14, 21, 28,
39 35, 42, 49, 56, 57, 50, 43, 36,
40 29, 22, 15, 23, 30, 37, 44, 51,
41 58, 59, 52, 45, 38, 31, 39, 46,
42 53, 60, 61, 54, 47, 55, 62, 63
43 };
44
45 /* INTRA */
46 const static Int mpeg_iqmat_def[NCOEFF_BLOCK] =
47 { 8, 17, 18, 19, 21, 23, 25, 27,
48 17, 18, 19, 21, 23, 25, 27, 28,
49 20, 21, 22, 23, 24, 26, 28, 30,
50 21, 22, 23, 24, 26, 28, 30, 32,
51 22, 23, 24, 26, 28, 30, 32, 35,
52 23, 24, 26, 28, 30, 32, 35, 38,
53 25, 26, 28, 30, 32, 35, 38, 41,
54 27, 28, 30, 32, 35, 38, 41, 45
55 };
56
57 /* INTER */
58 const static Int mpeg_nqmat_def[64] =
59 { 16, 17, 18, 19, 20, 21, 22, 23,
60 17, 18, 19, 20, 21, 22, 23, 24,
61 18, 19, 20, 21, 22, 23, 24, 25,
62 19, 20, 21, 22, 23, 24, 26, 27,
63 20, 21, 22, 23, 25, 26, 27, 28,
64 21, 22, 23, 24, 26, 27, 28, 30,
65 22, 23, 24, 26, 27, 28, 30, 31,
66 23, 24, 25, 27, 28, 30, 31, 33
67 };
68
69 /* Profiles and levels */
70 /* Simple profile(level 0-3) and Core profile (level 1-2) */
71 /* {SPL0, SPL1, SPL2, SPL3, CPL1, CPL2, CPL2, CPL2} , SPL0: Simple Profile@Level0, CPL1: Core Profile@Level1, the last two are redundant for easy table manipulation */
72 const static Int profile_level_code[8] =
73 {
74 0x08, 0x01, 0x02, 0x03, 0x21, 0x22, 0x22, 0x22
75 };
76
77 const static Int profile_level_max_bitrate[8] =
78 {
79 64000, 64000, 128000, 384000, 384000, 2000000, 2000000, 2000000
80 };
81
82 const static Int profile_level_max_packet_size[8] =
83 {
84 2048, 2048, 4096, 8192, 4096, 8192, 8192, 8192
85 };
86
87 const static Int profile_level_max_mbsPerSec[8] =
88 {
89 1485, 1485, 5940, 11880, 5940, 23760, 23760, 23760
90 };
91
92 const static Int profile_level_max_VBV_size[8] =
93 {
94 163840, 163840, 655360, 655360, 262144, 1310720, 1310720, 1310720
95 };
96
97
98 /* Simple scalable profile (level 0-2) and Core scalable profile (level 1-3) */
99 /* {SSPL0, SSPL1, SSPL2, SSPL2, CSPL1, CSPL2, CSPL3, CSPL3} , SSPL0: Simple Scalable Profile@Level0, CSPL1: Core Scalable Profile@Level1, the fourth is redundant for easy table manipulation */
100
101 const static Int scalable_profile_level_code[8] =
102 {
103 0x10, 0x11, 0x12, 0x12, 0xA1, 0xA2, 0xA3, 0xA3
104 };
105
106 const static Int scalable_profile_level_max_bitrate[8] =
107 {
108 128000, 128000, 256000, 256000, 768000, 1500000, 4000000, 4000000
109 };
110
111 /* in bits */
112 const static Int scalable_profile_level_max_packet_size[8] =
113 {
114 2048, 2048, 4096, 4096, 4096, 4096, 16384, 16384
115 };
116
117 const static Int scalable_profile_level_max_mbsPerSec[8] =
118 {
119 1485, 7425, 23760, 23760, 14850, 29700, 120960, 120960
120 };
121
122 const static Int scalable_profile_level_max_VBV_size[8] =
123 {
124 163840, 655360, 655360, 655360, 1048576, 1310720, 1310720, 1310720
125 };
126
127
128 /* H263 profile 0 @ level 10-70 */
129 const static Int h263Level[8] = {0, 10, 20, 30, 40, 50, 60, 70};
130 const static float rBR_bound[8] = {0, 1, 2, 6, 32, 64, 128, 256};
131 const static float max_h263_framerate[2] = {(float)30000 / (float)2002,
132 (float)30000 / (float)1001
133 };
134 const static Int max_h263_width[2] = {176, 352};
135 const static Int max_h263_height[2] = {144, 288};
136
137 /* 6/2/2001, newly added functions to make PVEncodeVop more readable. */
138 Int DetermineCodingLayer(VideoEncData *video, Int *nLayer, ULong modTime);
139 void DetermineVopType(VideoEncData *video, Int currLayer);
140 Int UpdateSkipNextFrame(VideoEncData *video, ULong *modTime, Int *size, PV_STATUS status);
141 Bool SetProfile_BufferSize(VideoEncData *video, float delay, Int bInitialized);
142
143 #ifdef PRINT_RC_INFO
144 extern FILE *facct;
145 extern int tiTotalNumBitsGenerated;
146 extern int iStuffBits;
147 #endif
148
149 #ifdef PRINT_EC
150 extern FILE *fec;
151 #endif
152
153
154 /* ======================================================================== */
155 /* Function : PVGetDefaultEncOption() */
156 /* Date : 12/12/2005 */
157 /* Purpose : */
158 /* In/out : */
159 /* Return : PV_TRUE if successed, PV_FALSE if failed. */
160 /* Modified : */
161 /* */
162 /* ======================================================================== */
163
PVGetDefaultEncOption(VideoEncOptions * encOption,Int encUseCase)164 OSCL_EXPORT_REF Bool PVGetDefaultEncOption(VideoEncOptions *encOption, Int encUseCase)
165 {
166 VideoEncOptions defaultUseCase = {H263_MODE, profile_level_max_packet_size[SIMPLE_PROFILE_LEVEL0] >> 3,
167 SIMPLE_PROFILE_LEVEL0, PV_OFF, 0, 1, 1000, 33, {144, 144}, {176, 176}, {15, 30}, {64000, 128000},
168 {10, 10}, {12, 12}, {0, 0}, CBR_1, 0.0, PV_OFF, -1, 0, PV_OFF, 16, PV_OFF, 0, PV_ON
169 };
170
171 OSCL_UNUSED_ARG(encUseCase); // unused for now. Later we can add more defaults setting and use this
172 // argument to select the right one.
173 /* in the future we can create more meaningful use-cases */
174 if (encOption == NULL)
175 {
176 return PV_FALSE;
177 }
178
179 M4VENC_MEMCPY(encOption, &defaultUseCase, sizeof(VideoEncOptions));
180
181 return PV_TRUE;
182 }
183
184 /* ======================================================================== */
185 /* Function : PVInitVideoEncoder() */
186 /* Date : 08/22/2000 */
187 /* Purpose : Initialization of MP4 Encoder and VO bitstream */
188 /* In/out : */
189 /* Return : PV_TRUE if successed, PV_FALSE if failed. */
190 /* Modified : 5/21/01, allocate only yChan and assign uChan & vChan */
191 /* 12/12/05, add encoding option as input argument */
192 /* ======================================================================== */
PVInitVideoEncoder(VideoEncControls * encoderControl,VideoEncOptions * encOption)193 OSCL_EXPORT_REF Bool PVInitVideoEncoder(VideoEncControls *encoderControl, VideoEncOptions *encOption)
194 {
195
196 Bool status = PV_TRUE;
197 Int nLayers, idx, i, j;
198 Int max = 0, max_width = 0, max_height = 0, pitch, offset;
199 Int size = 0, nTotalMB = 0;
200 VideoEncData *video;
201 Vol *pVol;
202 VideoEncParams *pEncParams;
203 Int temp_w, temp_h, mbsPerSec;
204
205 /******************************************/
206 /* this part use to be PVSetEncode() */
207 Int profile_table_index, *profile_level_table;
208 Int profile_level = encOption->profile_level;
209 Int PacketSize = encOption->packetSize << 3;
210 Int timeInc, timeIncRes;
211 float profile_max_framerate;
212 VideoEncParams *encParams;
213
214 if (encoderControl->videoEncoderData) /* this has been called */
215 {
216 if (encoderControl->videoEncoderInit) /* check if PVInitVideoEncoder() has been called */
217 {
218 PVCleanUpVideoEncoder(encoderControl);
219 encoderControl->videoEncoderInit = 0;
220 }
221
222 M4VENC_FREE(encoderControl->videoEncoderData);
223 encoderControl->videoEncoderData = NULL;
224 }
225 encoderControl->videoEncoderInit = 0; /* reset this value */
226
227 video = (VideoEncData *)M4VENC_MALLOC(sizeof(VideoEncData)); /* allocate memory for encData */
228
229 if (video == NULL)
230 return PV_FALSE;
231
232 M4VENC_MEMSET(video, 0, sizeof(VideoEncData));
233
234 encoderControl->videoEncoderData = (void *) video; /* set up pointer in VideoEncData structure */
235
236 video->encParams = (VideoEncParams *)M4VENC_MALLOC(sizeof(VideoEncParams));
237 if (video->encParams == NULL)
238 goto CLEAN_UP;
239
240 M4VENC_MEMSET(video->encParams, 0, sizeof(VideoEncParams));
241
242 encParams = video->encParams;
243 encParams->nLayers = encOption->numLayers;
244
245 /* Check whether the input packetsize is valid (Note: put code here (before any memory allocation) in order to avoid memory leak */
246 if ((Int)profile_level < (Int)(SIMPLE_SCALABLE_PROFILE_LEVEL0)) /* non-scalable profile */
247 {
248 profile_level_table = (Int *)profile_level_max_packet_size;
249 profile_table_index = (Int)profile_level;
250 if (encParams->nLayers != 1)
251 {
252 goto CLEAN_UP;
253 }
254
255 encParams->LayerMaxMbsPerSec[0] = profile_level_max_mbsPerSec[profile_table_index];
256
257 }
258 else /* scalable profile */
259 {
260 profile_level_table = (Int *)scalable_profile_level_max_packet_size;
261 profile_table_index = (Int)profile_level - (Int)(SIMPLE_SCALABLE_PROFILE_LEVEL0);
262 if (encParams->nLayers < 2)
263 {
264 goto CLEAN_UP;
265 }
266 for (i = 0; i < encParams->nLayers; i++)
267 {
268 encParams->LayerMaxMbsPerSec[i] = scalable_profile_level_max_mbsPerSec[profile_table_index];
269 }
270
271 }
272
273 /* cannot have zero size packet with these modes */
274 if (PacketSize == 0)
275 {
276 if (encOption->encMode == DATA_PARTITIONING_MODE)
277 {
278 goto CLEAN_UP;
279 }
280 if (encOption->encMode == COMBINE_MODE_WITH_ERR_RES)
281 {
282 encOption->encMode = COMBINE_MODE_NO_ERR_RES;
283 }
284 }
285
286 if (encOption->gobHeaderInterval == 0)
287 {
288 if (encOption->encMode == H263_MODE_WITH_ERR_RES)
289 {
290 encOption->encMode = H263_MODE;
291 }
292
293 if (encOption->encMode == SHORT_HEADER_WITH_ERR_RES)
294 {
295 encOption->encMode = SHORT_HEADER;
296 }
297 }
298
299 if (PacketSize > profile_level_table[profile_table_index])
300 goto CLEAN_UP;
301
302 /* Initial Defaults for all Modes */
303
304 encParams->SequenceStartCode = 1;
305 encParams->GOV_Enabled = 0;
306 encParams->RoundingType = 0;
307 encParams->IntraDCVlcThr = PV_MAX(PV_MIN(encOption->intraDCVlcTh, 7), 0);
308 encParams->ACDCPrediction = ((encOption->useACPred == PV_ON) ? TRUE : FALSE);
309 encParams->RC_Type = encOption->rcType;
310 encParams->Refresh = encOption->numIntraMB;
311 encParams->ResyncMarkerDisable = 0; /* Enable Resync Marker */
312
313 for (i = 0; i < encOption->numLayers; i++)
314 {
315 #ifdef NO_MPEG_QUANT
316 encParams->QuantType[i] = 0;
317 #else
318 encParams->QuantType[i] = encOption->quantType[i]; /* H263 */
319 #endif
320 if (encOption->pQuant[i] >= 1 && encOption->pQuant[i] <= 31)
321 {
322 encParams->InitQuantPvop[i] = encOption->pQuant[i];
323 }
324 else
325 {
326 goto CLEAN_UP;
327 }
328 if (encOption->iQuant[i] >= 1 && encOption->iQuant[i] <= 31)
329 {
330 encParams->InitQuantIvop[i] = encOption->iQuant[i];
331 }
332 else
333 {
334 goto CLEAN_UP;
335 }
336 }
337
338 encParams->HalfPel_Enabled = 1;
339 encParams->SearchRange = encOption->searchRange; /* 4/16/2001 */
340 encParams->FullSearch_Enabled = 0;
341 #ifdef NO_INTER4V
342 encParams->MV8x8_Enabled = 0;
343 #else
344 encParams->MV8x8_Enabled = 0;// comment out for now!! encOption->mv8x8Enable;
345 #endif
346 encParams->H263_Enabled = 0;
347 encParams->GOB_Header_Interval = 0; // need to be reset to 0
348 encParams->IntraPeriod = encOption->intraPeriod; /* Intra update period update default*/
349 encParams->SceneChange_Det = encOption->sceneDetect;
350 encParams->FineFrameSkip_Enabled = 0;
351 encParams->NoFrameSkip_Enabled = encOption->noFrameSkipped;
352 encParams->NoPreSkip_Enabled = encOption->noFrameSkipped;
353 encParams->GetVolHeader[0] = 0;
354 encParams->GetVolHeader[1] = 0;
355 encParams->ResyncPacketsize = encOption->packetSize << 3;
356 encParams->LayerMaxBitRate[0] = 0;
357 encParams->LayerMaxBitRate[1] = 0;
358 encParams->LayerMaxFrameRate[0] = (float)0.0;
359 encParams->LayerMaxFrameRate[1] = (float)0.0;
360 encParams->VBV_delay = encOption->vbvDelay; /* 2sec VBV buffer size */
361
362 switch (encOption->encMode)
363 {
364
365 case SHORT_HEADER:
366 case SHORT_HEADER_WITH_ERR_RES:
367
368 /* From Table 6-26 */
369 encParams->nLayers = 1;
370 encParams->QuantType[0] = 0; /*H263 */
371 encParams->ResyncMarkerDisable = 1; /* Disable Resync Marker */
372 encParams->DataPartitioning = 0; /* Combined Mode */
373 encParams->ReversibleVLC = 0; /* Disable RVLC */
374 encParams->RoundingType = 0;
375 encParams->IntraDCVlcThr = 7; /* use_intra_dc_vlc = 0 */
376 encParams->MV8x8_Enabled = 0;
377
378 encParams->GOB_Header_Interval = encOption->gobHeaderInterval;
379 encParams->H263_Enabled = 2;
380 encParams->GOV_Enabled = 0;
381 encParams->TimeIncrementRes = 30000; /* timeIncrementRes for H263 */
382 break;
383
384 case H263_MODE:
385 case H263_MODE_WITH_ERR_RES:
386
387 /* From Table 6-26 */
388 encParams->nLayers = 1;
389 encParams->QuantType[0] = 0; /*H263 */
390 encParams->ResyncMarkerDisable = 1; /* Disable Resync Marker */
391 encParams->DataPartitioning = 0; /* Combined Mode */
392 encParams->ReversibleVLC = 0; /* Disable RVLC */
393 encParams->RoundingType = 0;
394 encParams->IntraDCVlcThr = 7; /* use_intra_dc_vlc = 0 */
395 encParams->MV8x8_Enabled = 0;
396
397 encParams->H263_Enabled = 1;
398 encParams->GOV_Enabled = 0;
399 encParams->TimeIncrementRes = 30000; /* timeIncrementRes for H263 */
400
401 break;
402 #ifndef H263_ONLY
403 case DATA_PARTITIONING_MODE:
404
405 encParams->DataPartitioning = 1; /* Base Layer Data Partitioning */
406 encParams->ResyncMarkerDisable = 0; /* Resync Marker */
407 #ifdef NO_RVLC
408 encParams->ReversibleVLC = 0;
409 #else
410 encParams->ReversibleVLC = (encOption->rvlcEnable == PV_ON); /* RVLC when Data Partitioning */
411 #endif
412 encParams->ResyncPacketsize = PacketSize;
413 break;
414
415 case COMBINE_MODE_WITH_ERR_RES:
416
417 encParams->DataPartitioning = 0; /* Combined Mode */
418 encParams->ResyncMarkerDisable = 0; /* Resync Marker */
419 encParams->ReversibleVLC = 0; /* No RVLC */
420 encParams->ResyncPacketsize = PacketSize;
421 break;
422
423 case COMBINE_MODE_NO_ERR_RES:
424
425 encParams->DataPartitioning = 0; /* Combined Mode */
426 encParams->ResyncMarkerDisable = 1; /* Disable Resync Marker */
427 encParams->ReversibleVLC = 0; /* No RVLC */
428 break;
429 #endif
430 default:
431 goto CLEAN_UP;
432 }
433 /* Set the constraints (maximum values) according to the input profile and level */
434 /* Note that profile_table_index is already figured out above */
435
436 /* base layer */
437 encParams->profile_table_index = profile_table_index; /* Used to limit the profile and level in SetProfile_BufferSize() */
438
439 /* check timeIncRes */
440 timeIncRes = encOption->timeIncRes;
441 timeInc = encOption->tickPerSrc;
442
443 if ((timeIncRes >= 1) && (timeIncRes <= 65536) && (timeInc < timeIncRes) && (timeInc != 0))
444 {
445 if (!encParams->H263_Enabled)
446 {
447 encParams->TimeIncrementRes = timeIncRes;
448 }
449 else
450 {
451 encParams->TimeIncrementRes = 30000;
452 // video->FrameRate = 30000/(float)1001; /* fix it to 29.97 fps */
453 }
454 video->FrameRate = timeIncRes / ((float)timeInc);
455 }
456 else
457 {
458 goto CLEAN_UP;
459 }
460
461 /* check frame dimension */
462 if (encParams->H263_Enabled)
463 {
464 switch (encOption->encWidth[0])
465 {
466 case 128:
467 if (encOption->encHeight[0] != 96) /* source_format = 1 */
468 goto CLEAN_UP;
469 break;
470 case 176:
471 if (encOption->encHeight[0] != 144) /* source_format = 2 */
472 goto CLEAN_UP;
473 break;
474 case 352:
475 if (encOption->encHeight[0] != 288) /* source_format = 2 */
476 goto CLEAN_UP;
477 break;
478
479 case 704:
480 if (encOption->encHeight[0] != 576) /* source_format = 2 */
481 goto CLEAN_UP;
482 break;
483 case 1408:
484 if (encOption->encHeight[0] != 1152) /* source_format = 2 */
485 goto CLEAN_UP;
486 break;
487
488 default:
489 goto CLEAN_UP;
490 }
491 }
492 for (i = 0; i < encParams->nLayers; i++)
493 {
494 if (encOption->encHeight[i] == 0 || encOption->encWidth[i] == 0 ||
495 encOption->encHeight[i] % 16 != 0 || encOption->encWidth[i] % 16 != 0)
496 goto CLEAN_UP;
497 encParams->LayerHeight[i] = encOption->encHeight[i];
498 encParams->LayerWidth[i] = encOption->encWidth[i];
499 }
500
501 /* check frame rate */
502 for (i = 0; i < encParams->nLayers; i++)
503 {
504 encParams->LayerFrameRate[i] = encOption->encFrameRate[i];
505 }
506
507 if (encParams->nLayers > 1)
508 {
509 if (encOption->encFrameRate[0] == encOption->encFrameRate[1] ||
510 encOption->encFrameRate[0] == 0. || encOption->encFrameRate[1] == 0.) /* 7/31/03 */
511 goto CLEAN_UP;
512 }
513 /* set max frame rate */
514 for (i = 0; i < encParams->nLayers; i++)
515 {
516
517 /* Make sure the maximum framerate is consistent with the given profile and level */
518 nTotalMB = ((encParams->LayerWidth[i] + 15) / 16) * ((encParams->LayerHeight[i] + 15) / 16);
519
520 if (nTotalMB > 0)
521 profile_max_framerate = (float)encParams->LayerMaxMbsPerSec[i] / (float)nTotalMB;
522
523 else
524 profile_max_framerate = (float)30.0;
525
526 encParams->LayerMaxFrameRate[i] = PV_MIN(profile_max_framerate, encParams->LayerFrameRate[i]);
527 }
528
529 /* check bit rate */
530 for (i = 0; i < encParams->nLayers; i++)
531 {
532 encParams->LayerBitRate[i] = encOption->bitRate[i];
533 }
534 if (encParams->nLayers > 1)
535 {
536 if (encOption->bitRate[0] == encOption->bitRate[1] ||
537 encOption->bitRate[0] == 0 || encOption->bitRate[1] == 0) /* 7/31/03 */
538 goto CLEAN_UP;
539 }
540 /* check rate control and vbv delay*/
541 encParams->RC_Type = encOption->rcType;
542
543 if (encOption->vbvDelay == 0.0) /* set to default */
544 {
545 switch (encOption->rcType)
546 {
547 case CBR_1:
548 case CBR_2:
549 encParams->VBV_delay = (float)2.0; /* default 2sec VBV buffer size */
550 break;
551
552 case CBR_LOWDELAY:
553 encParams->VBV_delay = (float)0.5; /* default 0.5sec VBV buffer size */
554 break;
555
556 case VBR_1:
557 case VBR_2:
558 encParams->VBV_delay = (float)10.0; /* default 10sec VBV buffer size */
559 break;
560 default:
561 break;
562 }
563 }
564 else /* force this value */
565 {
566 encParams->VBV_delay = encOption->vbvDelay;
567 }
568
569 /* check search range */
570 if (encParams->H263_Enabled && encOption->searchRange > 16)
571 {
572 encParams->SearchRange = 16; /* 4/16/2001 */
573 }
574
575 /*****************************************/
576 /* checking for conflict between options */
577 /*****************************************/
578
579 if (video->encParams->RC_Type == CBR_1 || video->encParams->RC_Type == CBR_2 || video->encParams->RC_Type == CBR_LOWDELAY) /* if CBR */
580 {
581 #ifdef _PRINT_STAT
582 if (video->encParams->NoFrameSkip_Enabled == PV_ON ||
583 video->encParams->NoPreSkip_Enabled == PV_ON) /* don't allow frame skip*/
584 printf("WARNING!!!! CBR with NoFrameSkip\n");
585 #endif
586 }
587 else if (video->encParams->RC_Type == CONSTANT_Q) /* constant_Q */
588 {
589 video->encParams->NoFrameSkip_Enabled = PV_ON; /* no frame skip */
590 video->encParams->NoPreSkip_Enabled = PV_ON; /* no frame skip */
591 #ifdef _PRINT_STAT
592 printf("Turn on NoFrameSkip\n");
593 #endif
594 }
595
596 if (video->encParams->NoFrameSkip_Enabled == PV_ON) /* if no frame skip */
597 {
598 video->encParams->FineFrameSkip_Enabled = PV_OFF;
599 #ifdef _PRINT_STAT
600 printf("NoFrameSkip !!! may violate VBV_BUFFER constraint.\n");
601 printf("Turn off FineFrameSkip\n");
602 #endif
603 }
604
605 /******************************************/
606 /******************************************/
607
608 nLayers = video->encParams->nLayers; /* Number of Layers to be encoded */
609
610 /* Find the maximum width*height for memory allocation of the VOPs */
611 for (idx = 0; idx < nLayers; idx++)
612 {
613 temp_w = video->encParams->LayerWidth[idx];
614 temp_h = video->encParams->LayerHeight[idx];
615
616 if ((temp_w*temp_h) > max)
617 {
618 max = temp_w * temp_h;
619 max_width = ((temp_w + 15) >> 4) << 4;
620 max_height = ((temp_h + 15) >> 4) << 4;
621 if (((uint64_t)max_width * max_height) > (uint64_t)INT32_MAX
622 || temp_w > INT32_MAX - 15 || temp_h > INT32_MAX - 15) {
623 goto CLEAN_UP;
624 }
625 nTotalMB = ((max_width * max_height) >> 8);
626 }
627
628 /* Check if the video size and framerate(MBsPerSec) are vald */
629 mbsPerSec = (Int)(nTotalMB * video->encParams->LayerFrameRate[idx]);
630 if (mbsPerSec > video->encParams->LayerMaxMbsPerSec[idx]) status = PV_FALSE;
631 }
632
633 /****************************************************/
634 /* Set Profile and Video Buffer Size for each layer */
635 /****************************************************/
636 if (video->encParams->RC_Type == CBR_LOWDELAY) video->encParams->VBV_delay = 0.5; /* For CBR_LOWDELAY, we set 0.5sec buffer */
637 status = SetProfile_BufferSize(video, video->encParams->VBV_delay, 1);
638 if (status != PV_TRUE)
639 goto CLEAN_UP;
640
641 /****************************************/
642 /* memory allocation and initialization */
643 /****************************************/
644
645 if (video == NULL) goto CLEAN_UP;
646
647 /* cyclic reference for passing through both structures */
648 video->videoEncControls = encoderControl;
649
650 //video->currLayer = 0; /* Set current Layer to 0 */
651 //video->currFrameNo = 0; /* Set current frame Number to 0 */
652 video->nextModTime = 0;
653 video->nextEncIVop = 0; /* Sets up very first frame to be I-VOP! */
654 video->numVopsInGOP = 0; /* counter for Vops in Gop, 2/8/01 */
655
656 //video->frameRate = video->encParams->LayerFrameRate[0]; /* Set current layer frame rate */
657
658 video->QPMB = (UChar *) M4VENC_MALLOC(nTotalMB * sizeof(UChar)); /* Memory for MB quantizers */
659 if (video->QPMB == NULL) goto CLEAN_UP;
660
661
662 video->headerInfo.Mode = (UChar *) M4VENC_MALLOC(sizeof(UChar) * nTotalMB); /* Memory for MB Modes */
663 if (video->headerInfo.Mode == NULL) goto CLEAN_UP;
664 video->headerInfo.CBP = (UChar *) M4VENC_MALLOC(sizeof(UChar) * nTotalMB); /* Memory for CBP (Y and C) of each MB */
665 if (video->headerInfo.CBP == NULL) goto CLEAN_UP;
666
667 /* Allocating motion vector space and interpolation memory*/
668
669 if ((size_t)nTotalMB > SIZE_MAX / sizeof(MOT *)) {
670 goto CLEAN_UP;
671 }
672 video->mot = (MOT **)M4VENC_MALLOC(sizeof(MOT *) * nTotalMB);
673 if (video->mot == NULL) goto CLEAN_UP;
674
675 for (idx = 0; idx < nTotalMB; idx++)
676 {
677 video->mot[idx] = (MOT *)M4VENC_MALLOC(sizeof(MOT) * 8);
678 if (video->mot[idx] == NULL)
679 {
680 goto CLEAN_UP;
681 }
682 }
683
684 video->intraArray = (UChar *)M4VENC_MALLOC(sizeof(UChar) * nTotalMB);
685 if (video->intraArray == NULL) goto CLEAN_UP;
686
687 video->sliceNo = (UChar *) M4VENC_MALLOC(nTotalMB); /* Memory for Slice Numbers */
688 if (video->sliceNo == NULL) goto CLEAN_UP;
689 /* Allocating space for predDCAC[][8][16], Not that I intentionally */
690 /* increase the dimension of predDCAC from [][6][15] to [][8][16] */
691 /* so that compilers can generate faster code to indexing the */
692 /* data inside (by using << instead of *). 04/14/2000. */
693 /* 5/29/01, use decoder lib ACDC prediction memory scheme. */
694 if ((size_t)nTotalMB > SIZE_MAX / sizeof(typeDCStore)) {
695 goto CLEAN_UP;
696 }
697 video->predDC = (typeDCStore *) M4VENC_MALLOC(nTotalMB * sizeof(typeDCStore));
698 if (video->predDC == NULL) goto CLEAN_UP;
699
700 if (!video->encParams->H263_Enabled)
701 {
702 if ((size_t)((max_width >> 4) + 1) > SIZE_MAX / sizeof(typeDCACStore)) {
703 goto CLEAN_UP;
704 }
705 video->predDCAC_col = (typeDCACStore *) M4VENC_MALLOC(((max_width >> 4) + 1) * sizeof(typeDCACStore));
706 if (video->predDCAC_col == NULL) goto CLEAN_UP;
707
708 /* element zero will be used for storing vertical (col) AC coefficients */
709 /* the rest will be used for storing horizontal (row) AC coefficients */
710 video->predDCAC_row = video->predDCAC_col + 1; /* ACDC */
711
712 if ((size_t)nTotalMB > SIZE_MAX / sizeof(Int)) {
713 goto CLEAN_UP;
714 }
715 video->acPredFlag = (Int *) M4VENC_MALLOC(nTotalMB * sizeof(Int)); /* Memory for acPredFlag */
716 if (video->acPredFlag == NULL) goto CLEAN_UP;
717 }
718
719 video->outputMB = (MacroBlock *) M4VENC_MALLOC(sizeof(MacroBlock)); /* Allocating macroblock space */
720 if (video->outputMB == NULL) goto CLEAN_UP;
721 M4VENC_MEMSET(video->outputMB->block[0], 0, (sizeof(Short) << 6)*6);
722
723 M4VENC_MEMSET(video->dataBlock, 0, sizeof(Short) << 7);
724 /* Allocate (2*packetsize) working bitstreams */
725
726 video->bitstream1 = BitStreamCreateEnc(2 * 4096); /*allocate working stream 1*/
727 if (video->bitstream1 == NULL) goto CLEAN_UP;
728 video->bitstream2 = BitStreamCreateEnc(2 * 4096); /*allocate working stream 2*/
729 if (video->bitstream2 == NULL) goto CLEAN_UP;
730 video->bitstream3 = BitStreamCreateEnc(2 * 4096); /*allocate working stream 3*/
731 if (video->bitstream3 == NULL) goto CLEAN_UP;
732
733 /* allocate overrun buffer */
734 // this buffer is used when user's buffer is too small to hold one frame.
735 // It is not needed for slice-based encoding.
736 if (nLayers == 1)
737 {
738 video->oBSize = encParams->BufferSize[0] >> 3;
739 }
740 else
741 {
742 video->oBSize = PV_MAX((encParams->BufferSize[0] >> 3), (encParams->BufferSize[1] >> 3));
743 }
744
745 if (video->oBSize > DEFAULT_OVERRUN_BUFFER_SIZE || encParams->RC_Type == CONSTANT_Q) // set limit
746 {
747 video->oBSize = DEFAULT_OVERRUN_BUFFER_SIZE;
748 }
749 video->overrunBuffer = (UChar*) M4VENC_MALLOC(sizeof(UChar) * video->oBSize);
750 if (video->overrunBuffer == NULL) goto CLEAN_UP;
751
752
753 video->currVop = (Vop *) M4VENC_MALLOC(sizeof(Vop)); /* Memory for Current VOP */
754 if (video->currVop == NULL) goto CLEAN_UP;
755
756 /* add padding, 09/19/05 */
757 if (video->encParams->H263_Enabled) /* make it conditional 11/28/05 */
758 {
759 pitch = max_width;
760 offset = 0;
761 }
762 else
763 {
764 pitch = max_width + 32;
765 offset = (pitch << 4) + 16;
766 max_height += 32;
767 }
768 if (((uint64_t)pitch * max_height) > (uint64_t)INT32_MAX) {
769 goto CLEAN_UP;
770 }
771 size = pitch * max_height;
772
773 if (size > INT32_MAX - (size >> 1)
774 || (size_t)(size + (size >> 1)) > SIZE_MAX / sizeof(PIXEL)) {
775 goto CLEAN_UP;
776 }
777 video->currVop->allChan = video->currVop->yChan = (PIXEL *)M4VENC_MALLOC(sizeof(PIXEL) * (size + (size >> 1))); /* Memory for currVop Y */
778 if (video->currVop->yChan == NULL) goto CLEAN_UP;
779 video->currVop->uChan = video->currVop->yChan + size;/* Memory for currVop U */
780 video->currVop->vChan = video->currVop->uChan + (size >> 2);/* Memory for currVop V */
781
782 /* shift for the offset */
783 if (offset)
784 {
785 video->currVop->yChan += offset; /* offset to the origin.*/
786 video->currVop->uChan += (offset >> 2) + 4;
787 video->currVop->vChan += (offset >> 2) + 4;
788 }
789
790 video->forwardRefVop = video->currVop; /* Initialize forwardRefVop */
791 video->backwardRefVop = video->currVop; /* Initialize backwardRefVop */
792
793 video->prevBaseVop = (Vop *) M4VENC_MALLOC(sizeof(Vop)); /* Memory for Previous Base Vop */
794 if (video->prevBaseVop == NULL) goto CLEAN_UP;
795 video->prevBaseVop->allChan = video->prevBaseVop->yChan = (PIXEL *) M4VENC_MALLOC(sizeof(PIXEL) * (size + (size >> 1))); /* Memory for prevBaseVop Y */
796 if (video->prevBaseVop->yChan == NULL) goto CLEAN_UP;
797 video->prevBaseVop->uChan = video->prevBaseVop->yChan + size; /* Memory for prevBaseVop U */
798 video->prevBaseVop->vChan = video->prevBaseVop->uChan + (size >> 2); /* Memory for prevBaseVop V */
799
800 if (offset)
801 {
802 video->prevBaseVop->yChan += offset; /* offset to the origin.*/
803 video->prevBaseVop->uChan += (offset >> 2) + 4;
804 video->prevBaseVop->vChan += (offset >> 2) + 4;
805 }
806
807
808 if (0) /* If B Frames */
809 {
810 video->nextBaseVop = (Vop *) M4VENC_MALLOC(sizeof(Vop)); /* Memory for Next Base Vop */
811 if (video->nextBaseVop == NULL) goto CLEAN_UP;
812 video->nextBaseVop->allChan = video->nextBaseVop->yChan = (PIXEL *) M4VENC_MALLOC(sizeof(PIXEL) * (size + (size >> 1))); /* Memory for nextBaseVop Y */
813 if (video->nextBaseVop->yChan == NULL) goto CLEAN_UP;
814 video->nextBaseVop->uChan = video->nextBaseVop->yChan + size; /* Memory for nextBaseVop U */
815 video->nextBaseVop->vChan = video->nextBaseVop->uChan + (size >> 2); /* Memory for nextBaseVop V */
816
817 if (offset)
818 {
819 video->nextBaseVop->yChan += offset; /* offset to the origin.*/
820 video->nextBaseVop->uChan += (offset >> 2) + 4;
821 video->nextBaseVop->vChan += (offset >> 2) + 4;
822 }
823 }
824
825 if (nLayers > 1) /* If enhancement layers */
826 {
827 video->prevEnhanceVop = (Vop *) M4VENC_MALLOC(sizeof(Vop)); /* Memory for Previous Enhancement Vop */
828 if (video->prevEnhanceVop == NULL) goto CLEAN_UP;
829 video->prevEnhanceVop->allChan = video->prevEnhanceVop->yChan = (PIXEL *) M4VENC_MALLOC(sizeof(PIXEL) * (size + (size >> 1))); /* Memory for Previous Ehancement Y */
830 if (video->prevEnhanceVop->yChan == NULL) goto CLEAN_UP;
831 video->prevEnhanceVop->uChan = video->prevEnhanceVop->yChan + size; /* Memory for Previous Enhancement U */
832 video->prevEnhanceVop->vChan = video->prevEnhanceVop->uChan + (size >> 2); /* Memory for Previous Enhancement V */
833
834 if (offset)
835 {
836 video->prevEnhanceVop->yChan += offset; /* offset to the origin.*/
837 video->prevEnhanceVop->uChan += (offset >> 2) + 4;
838 video->prevEnhanceVop->vChan += (offset >> 2) + 4;
839 }
840 }
841
842 video->numberOfLayers = nLayers; /* Number of Layers */
843 video->sumMAD = 0;
844
845
846 /* 04/09/01, for Vops in the use multipass processing */
847 for (idx = 0; idx < nLayers; idx++)
848 {
849 video->pMP[idx] = (MultiPass *)M4VENC_MALLOC(sizeof(MultiPass));
850 if (video->pMP[idx] == NULL) goto CLEAN_UP;
851 M4VENC_MEMSET(video->pMP[idx], 0, sizeof(MultiPass));
852
853 video->pMP[idx]->encoded_frames = -1; /* forget about the very first I frame */
854
855
856 /* RDInfo **pRDSamples */
857 video->pMP[idx]->pRDSamples = (RDInfo **)M4VENC_MALLOC(30 * sizeof(RDInfo *));
858 if (video->pMP[idx]->pRDSamples == NULL) goto CLEAN_UP;
859 for (i = 0; i < 30; i++)
860 {
861 video->pMP[idx]->pRDSamples[i] = (RDInfo *)M4VENC_MALLOC(32 * sizeof(RDInfo));
862 if (video->pMP[idx]->pRDSamples[i] == NULL) goto CLEAN_UP;
863 for (j = 0; j < 32; j++) M4VENC_MEMSET(&(video->pMP[idx]->pRDSamples[i][j]), 0, sizeof(RDInfo));
864 }
865 video->pMP[idx]->frameRange = (Int)(video->encParams->LayerFrameRate[idx] * 1.0); /* 1.0s time frame*/
866 video->pMP[idx]->frameRange = PV_MAX(video->pMP[idx]->frameRange, 5);
867 video->pMP[idx]->frameRange = PV_MIN(video->pMP[idx]->frameRange, 30);
868
869 video->pMP[idx]->framePos = -1;
870
871 }
872 /* /// End /////////////////////////////////////// */
873
874
875 if ((size_t)nLayers > SIZE_MAX / sizeof(Vol *)) {
876 goto CLEAN_UP;
877 }
878 video->vol = (Vol **)M4VENC_MALLOC(nLayers * sizeof(Vol *)); /* Memory for VOL pointers */
879
880 /* Memory allocation and Initialization of Vols and writing of headers */
881 if (video->vol == NULL) goto CLEAN_UP;
882
883 for (idx = 0; idx < nLayers; idx++)
884 {
885 video->volInitialize[idx] = 1;
886 video->refTick[idx] = 0;
887 video->relLayerCodeTime[idx] = 1000;
888 video->vol[idx] = (Vol *)M4VENC_MALLOC(sizeof(Vol));
889 if (video->vol[idx] == NULL) goto CLEAN_UP;
890
891 pVol = video->vol[idx];
892 pEncParams = video->encParams;
893
894 M4VENC_MEMSET(video->vol[idx], 0, sizeof(Vol));
895 /* Initialize some VOL parameters */
896 pVol->volID = idx; /* Set VOL ID */
897 pVol->shortVideoHeader = pEncParams->H263_Enabled; /*Short Header */
898 pVol->GOVStart = pEncParams->GOV_Enabled; /* GOV Header */
899 pVol->timeIncrementResolution = video->encParams->TimeIncrementRes;
900 pVol->nbitsTimeIncRes = 1;
901 while (pVol->timeIncrementResolution > (1 << pVol->nbitsTimeIncRes))
902 {
903 pVol->nbitsTimeIncRes++;
904 }
905
906 /* timing stuff */
907 pVol->timeIncrement = 0;
908 pVol->moduloTimeBase = 0;
909 pVol->fixedVopRate = 0; /* No fixed VOP rate */
910 pVol->stream = (BitstreamEncVideo *)M4VENC_MALLOC(sizeof(BitstreamEncVideo)); /* allocate BitstreamEncVideo Instance */
911 if (pVol->stream == NULL) goto CLEAN_UP;
912
913 pVol->width = pEncParams->LayerWidth[idx]; /* Layer Width */
914 pVol->height = pEncParams->LayerHeight[idx]; /* Layer Height */
915 // pVol->intra_acdcPredDisable = pEncParams->ACDCPrediction; /* ACDC Prediction */
916 pVol->ResyncMarkerDisable = pEncParams->ResyncMarkerDisable; /* Resync Marker Mode */
917 pVol->dataPartitioning = pEncParams->DataPartitioning; /* Data Partitioning */
918 pVol->useReverseVLC = pEncParams->ReversibleVLC; /* RVLC */
919 if (idx > 0) /* Scalability layers */
920 {
921 pVol->ResyncMarkerDisable = 1;
922 pVol->dataPartitioning = 0;
923 pVol->useReverseVLC = 0; /* No RVLC */
924 }
925 pVol->quantType = pEncParams->QuantType[idx]; /* Quantizer Type */
926
927 /* no need to init Quant Matrices */
928
929 pVol->scalability = 0; /* Vol Scalability */
930 if (idx > 0)
931 pVol->scalability = 1; /* Multiple layers => Scalability */
932
933 /* Initialize Vol to Temporal scalability. It can change during encoding */
934 pVol->scalType = 1;
935 /* Initialize reference Vol ID to the base layer = 0 */
936 pVol->refVolID = 0;
937 /* Initialize layer resolution to same as the reference */
938 pVol->refSampDir = 0;
939 pVol->horSamp_m = 1;
940 pVol->horSamp_n = 1;
941 pVol->verSamp_m = 1;
942 pVol->verSamp_n = 1;
943 pVol->enhancementType = 0; /* We always enhance the entire region */
944
945 pVol->nMBPerRow = (pVol->width + 15) / 16;
946 pVol->nMBPerCol = (pVol->height + 15) / 16;
947 pVol->nTotalMB = pVol->nMBPerRow * pVol->nMBPerCol;
948
949 if (pVol->nTotalMB >= 1)
950 pVol->nBitsForMBID = 1;
951 if (pVol->nTotalMB >= 3)
952 pVol->nBitsForMBID = 2;
953 if (pVol->nTotalMB >= 5)
954 pVol->nBitsForMBID = 3;
955 if (pVol->nTotalMB >= 9)
956 pVol->nBitsForMBID = 4;
957 if (pVol->nTotalMB >= 17)
958 pVol->nBitsForMBID = 5;
959 if (pVol->nTotalMB >= 33)
960 pVol->nBitsForMBID = 6;
961 if (pVol->nTotalMB >= 65)
962 pVol->nBitsForMBID = 7;
963 if (pVol->nTotalMB >= 129)
964 pVol->nBitsForMBID = 8;
965 if (pVol->nTotalMB >= 257)
966 pVol->nBitsForMBID = 9;
967 if (pVol->nTotalMB >= 513)
968 pVol->nBitsForMBID = 10;
969 if (pVol->nTotalMB >= 1025)
970 pVol->nBitsForMBID = 11;
971 if (pVol->nTotalMB >= 2049)
972 pVol->nBitsForMBID = 12;
973 if (pVol->nTotalMB >= 4097)
974 pVol->nBitsForMBID = 13;
975 if (pVol->nTotalMB >= 8193)
976 pVol->nBitsForMBID = 14;
977 if (pVol->nTotalMB >= 16385)
978 pVol->nBitsForMBID = 15;
979 if (pVol->nTotalMB >= 32769)
980 pVol->nBitsForMBID = 16;
981 if (pVol->nTotalMB >= 65537)
982 pVol->nBitsForMBID = 17;
983 if (pVol->nTotalMB >= 131073)
984 pVol->nBitsForMBID = 18;
985
986 if (pVol->shortVideoHeader)
987 {
988 switch (pVol->width)
989 {
990 case 128:
991 if (pVol->height == 96) /* source_format = 1 */
992 {
993 pVol->nGOBinVop = 6;
994 pVol->nMBinGOB = 8;
995 }
996 else
997 status = PV_FALSE;
998 break;
999
1000 case 176:
1001 if (pVol->height == 144) /* source_format = 2 */
1002 {
1003 pVol->nGOBinVop = 9;
1004 pVol->nMBinGOB = 11;
1005 }
1006 else
1007 status = PV_FALSE;
1008 break;
1009 case 352:
1010 if (pVol->height == 288) /* source_format = 2 */
1011 {
1012 pVol->nGOBinVop = 18;
1013 pVol->nMBinGOB = 22;
1014 }
1015 else
1016 status = PV_FALSE;
1017 break;
1018
1019 case 704:
1020 if (pVol->height == 576) /* source_format = 2 */
1021 {
1022 pVol->nGOBinVop = 18;
1023 pVol->nMBinGOB = 88;
1024 }
1025 else
1026 status = PV_FALSE;
1027 break;
1028 case 1408:
1029 if (pVol->height == 1152) /* source_format = 2 */
1030 {
1031 pVol->nGOBinVop = 18;
1032 pVol->nMBinGOB = 352;
1033 }
1034 else
1035 status = PV_FALSE;
1036 break;
1037
1038 default:
1039 status = PV_FALSE;
1040 break;
1041 }
1042 }
1043 }
1044
1045 /***************************************************/
1046 /* allocate and initialize rate control parameters */
1047 /***************************************************/
1048
1049 /* BEGIN INITIALIZATION OF ANNEX L RATE CONTROL */
1050 if (video->encParams->RC_Type != CONSTANT_Q)
1051 {
1052 for (idx = 0; idx < nLayers; idx++) /* 12/25/00 */
1053 {
1054 video->rc[idx] =
1055 (rateControl *)M4VENC_MALLOC(sizeof(rateControl));
1056
1057 if (video->rc[idx] == NULL) goto CLEAN_UP;
1058
1059 M4VENC_MEMSET(video->rc[idx], 0, sizeof(rateControl));
1060 }
1061 if (PV_SUCCESS != RC_Initialize(video))
1062 {
1063 goto CLEAN_UP;
1064 }
1065 /* initialization for 2-pass rate control */
1066 }
1067 /* END INITIALIZATION OF ANNEX L RATE CONTROL */
1068
1069 /********** assign platform dependent functions ***********************/
1070 /* 1/23/01 */
1071 /* This must be done at run-time not a compile time */
1072 video->functionPointer = (FuncPtr*) M4VENC_MALLOC(sizeof(FuncPtr));
1073 if (video->functionPointer == NULL) goto CLEAN_UP;
1074
1075 video->functionPointer->ComputeMBSum = &ComputeMBSum_C;
1076 video->functionPointer->SAD_MB_HalfPel[0] = NULL;
1077 video->functionPointer->SAD_MB_HalfPel[1] = &SAD_MB_HalfPel_Cxh;
1078 video->functionPointer->SAD_MB_HalfPel[2] = &SAD_MB_HalfPel_Cyh;
1079 video->functionPointer->SAD_MB_HalfPel[3] = &SAD_MB_HalfPel_Cxhyh;
1080
1081 #ifndef NO_INTER4V
1082 video->functionPointer->SAD_Blk_HalfPel = &SAD_Blk_HalfPel_C;
1083 video->functionPointer->SAD_Block = &SAD_Block_C;
1084 #endif
1085 video->functionPointer->SAD_Macroblock = &SAD_Macroblock_C;
1086 video->functionPointer->ChooseMode = &ChooseMode_C;
1087 video->functionPointer->GetHalfPelMBRegion = &GetHalfPelMBRegion_C;
1088 // video->functionPointer->SAD_MB_PADDING = &SAD_MB_PADDING; /* 4/21/01 */
1089
1090
1091 encoderControl->videoEncoderInit = 1; /* init done! */
1092
1093 return PV_TRUE;
1094
1095 CLEAN_UP:
1096 PVCleanUpVideoEncoder(encoderControl);
1097
1098 return PV_FALSE;
1099 }
1100
1101
1102 /* ======================================================================== */
1103 /* Function : PVCleanUpVideoEncoder() */
1104 /* Date : 08/22/2000 */
1105 /* Purpose : Deallocates allocated memory from InitVideoEncoder() */
1106 /* In/out : */
1107 /* Return : PV_TRUE if successed, PV_FALSE if failed. */
1108 /* Modified : 5/21/01, free only yChan in Vop */
1109 /* */
1110 /* ======================================================================== */
1111
PVCleanUpVideoEncoder(VideoEncControls * encoderControl)1112 OSCL_EXPORT_REF Bool PVCleanUpVideoEncoder(VideoEncControls *encoderControl)
1113 {
1114 Int idx, i;
1115 VideoEncData *video = (VideoEncData *)encoderControl->videoEncoderData;
1116 int nTotalMB;
1117 int max_width, offset;
1118
1119 #ifdef PRINT_RC_INFO
1120 if (facct != NULL)
1121 {
1122 fprintf(facct, "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n");
1123 fprintf(facct, "TOTAL NUM BITS GENERATED %d\n", tiTotalNumBitsGenerated);
1124 fprintf(facct, "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n");
1125 fprintf(facct, "TOTAL NUMBER OF FRAMES CODED %d\n",
1126 video->encParams->rc[0]->totalFrameNumber);
1127 fprintf(facct, "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n");
1128 fprintf(facct, "Average BitRate %d\n",
1129 (tiTotalNumBitsGenerated / (90 / 30)));
1130 fprintf(facct, "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n");
1131 fprintf(facct, "TOTAL NUMBER OF STUFF BITS %d\n", (iStuffBits + 10740));
1132 fprintf(facct, "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n");
1133 fprintf(facct, "TOTAL NUMBER OF BITS TO NETWORK %d\n", (35800*90 / 30));;
1134 fprintf(facct, "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n");
1135 fprintf(facct, "SUM OF STUFF BITS AND GENERATED BITS %d\n",
1136 (tiTotalNumBitsGenerated + iStuffBits + 10740));
1137 fprintf(facct, "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n");
1138 fprintf(facct, "UNACCOUNTED DIFFERENCE %d\n",
1139 ((35800*90 / 30) - (tiTotalNumBitsGenerated + iStuffBits + 10740)));
1140 fprintf(facct, "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n");
1141 fclose(facct);
1142 }
1143 #endif
1144
1145 #ifdef PRINT_EC
1146 fclose(fec);
1147 #endif
1148
1149 if (video != NULL)
1150 {
1151
1152 if (video->QPMB) M4VENC_FREE(video->QPMB);
1153 if (video->headerInfo.Mode)M4VENC_FREE(video->headerInfo.Mode);
1154 if (video->headerInfo.CBP)M4VENC_FREE(video->headerInfo.CBP);
1155
1156
1157 if (video->mot)
1158 {
1159 nTotalMB = video->vol[0]->nTotalMB;
1160 for (idx = 1; idx < video->currLayer; idx++)
1161 if (video->vol[idx]->nTotalMB > nTotalMB)
1162 nTotalMB = video->vol[idx]->nTotalMB;
1163 for (idx = 0; idx < nTotalMB; idx++)
1164 {
1165 if (video->mot[idx])
1166 M4VENC_FREE(video->mot[idx]);
1167 }
1168 M4VENC_FREE(video->mot);
1169 }
1170
1171 if (video->intraArray) M4VENC_FREE(video->intraArray);
1172
1173 if (video->sliceNo)M4VENC_FREE(video->sliceNo);
1174 if (video->acPredFlag)M4VENC_FREE(video->acPredFlag);
1175 // if(video->predDCAC)M4VENC_FREE(video->predDCAC);
1176 if (video->predDC) M4VENC_FREE(video->predDC);
1177 video->predDCAC_row = NULL;
1178 if (video->predDCAC_col) M4VENC_FREE(video->predDCAC_col);
1179 if (video->outputMB)M4VENC_FREE(video->outputMB);
1180
1181 if (video->bitstream1)BitstreamCloseEnc(video->bitstream1);
1182 if (video->bitstream2)BitstreamCloseEnc(video->bitstream2);
1183 if (video->bitstream3)BitstreamCloseEnc(video->bitstream3);
1184
1185 if (video->overrunBuffer) M4VENC_FREE(video->overrunBuffer);
1186
1187 max_width = video->encParams->LayerWidth[0];
1188 max_width = (((max_width + 15) >> 4) << 4); /* 09/19/05 */
1189 if (video->encParams->H263_Enabled)
1190 {
1191 offset = 0;
1192 }
1193 else
1194 {
1195 offset = ((max_width + 32) << 4) + 16;
1196 }
1197
1198 if (video->currVop)
1199 {
1200 if (video->currVop->allChan)
1201 {
1202 M4VENC_FREE(video->currVop->allChan);
1203 }
1204 M4VENC_FREE(video->currVop);
1205 }
1206
1207 if (video->nextBaseVop)
1208 {
1209 if (video->nextBaseVop->allChan)
1210 {
1211 M4VENC_FREE(video->nextBaseVop->allChan);
1212 }
1213 M4VENC_FREE(video->nextBaseVop);
1214 }
1215
1216 if (video->prevBaseVop)
1217 {
1218 if (video->prevBaseVop->allChan)
1219 {
1220 M4VENC_FREE(video->prevBaseVop->allChan);
1221 }
1222 M4VENC_FREE(video->prevBaseVop);
1223 }
1224 if (video->prevEnhanceVop)
1225 {
1226 if (video->prevEnhanceVop->allChan)
1227 {
1228 M4VENC_FREE(video->prevEnhanceVop->allChan);
1229 }
1230 M4VENC_FREE(video->prevEnhanceVop);
1231 }
1232
1233 /* 04/09/01, for Vops in the use multipass processing */
1234 for (idx = 0; idx < video->encParams->nLayers; idx++)
1235 {
1236 if (video->pMP[idx])
1237 {
1238 if (video->pMP[idx]->pRDSamples)
1239 {
1240 for (i = 0; i < 30; i++)
1241 {
1242 if (video->pMP[idx]->pRDSamples[i])
1243 M4VENC_FREE(video->pMP[idx]->pRDSamples[i]);
1244 }
1245 M4VENC_FREE(video->pMP[idx]->pRDSamples);
1246 }
1247
1248 M4VENC_MEMSET(video->pMP[idx], 0, sizeof(MultiPass));
1249 M4VENC_FREE(video->pMP[idx]);
1250 }
1251 }
1252 /* // End /////////////////////////////////////// */
1253
1254 if (video->vol)
1255 {
1256 for (idx = 0; idx < video->encParams->nLayers; idx++)
1257 {
1258 if (video->vol[idx])
1259 {
1260 if (video->vol[idx]->stream)
1261 M4VENC_FREE(video->vol[idx]->stream);
1262 M4VENC_FREE(video->vol[idx]);
1263 }
1264 }
1265 M4VENC_FREE(video->vol);
1266 }
1267
1268 /***************************************************/
1269 /* stop rate control parameters */
1270 /***************************************************/
1271
1272 /* ANNEX L RATE CONTROL */
1273 if (video->encParams->RC_Type != CONSTANT_Q)
1274 {
1275 RC_Cleanup(video->rc, video->encParams->nLayers);
1276
1277 for (idx = 0; idx < video->encParams->nLayers; idx++)
1278 {
1279 if (video->rc[idx])
1280 M4VENC_FREE(video->rc[idx]);
1281 }
1282 }
1283
1284 if (video->functionPointer) M4VENC_FREE(video->functionPointer);
1285
1286 /* If application has called PVCleanUpVideoEncoder then we deallocate */
1287 /* If PVInitVideoEncoder class it, then we DO NOT deallocate */
1288 if (video->encParams)
1289 {
1290 M4VENC_FREE(video->encParams);
1291 }
1292
1293 M4VENC_FREE(video);
1294 encoderControl->videoEncoderData = NULL; /* video */
1295 }
1296
1297 encoderControl->videoEncoderInit = 0;
1298
1299 return PV_TRUE;
1300 }
1301
1302 /* ======================================================================== */
1303 /* Function : PVGetVolHeader() */
1304 /* Date : 7/17/2001, */
1305 /* Purpose : */
1306 /* In/out : */
1307 /* Return : PV_TRUE if successed, PV_FALSE if failed. */
1308 /* Modified : */
1309 /* */
1310 /* ======================================================================== */
1311
PVGetVolHeader(VideoEncControls * encCtrl,UChar * volHeader,Int * size,Int layer)1312 OSCL_EXPORT_REF Bool PVGetVolHeader(VideoEncControls *encCtrl, UChar *volHeader, Int *size, Int layer)
1313 {
1314 VideoEncData *encData;
1315 PV_STATUS EncodeVOS_Start(VideoEncControls *encCtrl);
1316 encData = (VideoEncData *)encCtrl->videoEncoderData;
1317
1318
1319 if (encData == NULL)
1320 return PV_FALSE;
1321 if (encData->encParams == NULL)
1322 return PV_FALSE;
1323
1324
1325 encData->currLayer = layer; /* Set Layer */
1326 /*pv_status = */
1327 EncodeVOS_Start(encCtrl); /* Encode VOL Header */
1328
1329 encData->encParams->GetVolHeader[layer] = 1; /* Set usage flag: Needed to support old method*/
1330
1331 /* Copy bitstream to buffer and set the size */
1332
1333 if (*size > encData->bitstream1->byteCount)
1334 {
1335 *size = encData->bitstream1->byteCount;
1336 M4VENC_MEMCPY(volHeader, encData->bitstream1->bitstreamBuffer, *size);
1337 }
1338 else
1339 return PV_FALSE;
1340
1341 /* Reset bitstream1 buffer parameters */
1342 BitstreamEncReset(encData->bitstream1);
1343
1344 return PV_TRUE;
1345 }
1346
1347 /* ======================================================================== */
1348 /* Function : PVGetOverrunBuffer() */
1349 /* Purpose : Get the overrun buffer ` */
1350 /* In/out : */
1351 /* Return : Pointer to overrun buffer. */
1352 /* Modified : */
1353 /* ======================================================================== */
1354
PVGetOverrunBuffer(VideoEncControls * encCtrl)1355 OSCL_EXPORT_REF UChar* PVGetOverrunBuffer(VideoEncControls *encCtrl)
1356 {
1357 VideoEncData *video = (VideoEncData *)encCtrl->videoEncoderData;
1358 Int currLayer = video->currLayer;
1359 Vol *currVol = video->vol[currLayer];
1360
1361 if (currVol->stream->bitstreamBuffer != video->overrunBuffer) // not used
1362 {
1363 return NULL;
1364 }
1365
1366 return video->overrunBuffer;
1367 }
1368
1369
1370
1371
1372 /* ======================================================================== */
1373 /* Function : EncodeVideoFrame() */
1374 /* Date : 08/22/2000 */
1375 /* Purpose : Encode video frame and return bitstream */
1376 /* In/out : */
1377 /* Return : PV_TRUE if successed, PV_FALSE if failed. */
1378 /* Modified : */
1379 /* 02.14.2001 */
1380 /* Finishing new timestamp 32-bit input */
1381 /* Applications need to take care of wrap-around */
1382 /* ======================================================================== */
PVEncodeVideoFrame(VideoEncControls * encCtrl,VideoEncFrameIO * vid_in,VideoEncFrameIO * vid_out,ULong * nextModTime,UChar * bstream,Int * size,Int * nLayer)1383 OSCL_EXPORT_REF Bool PVEncodeVideoFrame(VideoEncControls *encCtrl, VideoEncFrameIO *vid_in, VideoEncFrameIO *vid_out,
1384 ULong *nextModTime, UChar *bstream, Int *size, Int *nLayer)
1385 {
1386 Bool status = PV_TRUE;
1387 PV_STATUS pv_status;
1388 VideoEncData *video = (VideoEncData *)encCtrl->videoEncoderData;
1389 VideoEncParams *encParams = video->encParams;
1390 Vol *currVol;
1391 Vop *tempForwRefVop = NULL;
1392 Int tempRefSelCode = 0;
1393 PV_STATUS EncodeVOS_Start(VideoEncControls *encCtrl);
1394 Int width_16, height_16;
1395 Int width, height;
1396 Vop *temp;
1397 Int encodeVop = 0;
1398 void PaddingEdge(Vop *padVop);
1399 Int currLayer = -1;
1400 //Int nLayers = encParams->nLayers;
1401
1402 ULong modTime = vid_in->timestamp;
1403
1404 #ifdef RANDOM_REFSELCODE /* add random selection of reference Vop */
1405 Int random_val[30] = {0, 1, 1, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0, 0};
1406 static Int rand_idx = 0;
1407 #endif
1408
1409 /*******************************************************/
1410 /* Determine Next Vop to encode, if any, and nLayer */
1411 /*******************************************************/
1412 //i = nLayers-1;
1413
1414 if (video->volInitialize[0]) /* first vol to code */
1415 {
1416 video->nextModTime = video->modTimeRef = ((modTime) - ((modTime) % 1000));
1417 }
1418
1419 encodeVop = DetermineCodingLayer(video, nLayer, modTime);
1420 currLayer = *nLayer;
1421 if ((currLayer < 0) || (currLayer > encParams->nLayers - 1))
1422 return PV_FALSE;
1423
1424 /******************************************/
1425 /* If post-skipping still effective --- return */
1426 /******************************************/
1427
1428 if (!encodeVop) /* skip enh layer, no base layer coded --- return */
1429 {
1430 #ifdef _PRINT_STAT
1431 printf("No frame coded. Continue to next frame.");
1432 #endif
1433 /* expected next code time, convert back to millisec */
1434 *nextModTime = video->nextModTime;
1435
1436 #ifdef ALLOW_VOP_NOT_CODED
1437 if (video->vol[0]->shortVideoHeader) /* Short Video Header = 1 */
1438 {
1439 *size = 0;
1440 *nLayer = -1;
1441 }
1442 else
1443 {
1444 *nLayer = 0;
1445 EncodeVopNotCoded(video, bstream, size, modTime);
1446 *size = video->vol[0]->stream->byteCount;
1447 }
1448 #else
1449 *size = 0;
1450 *nLayer = -1;
1451 #endif
1452 return status;
1453 }
1454
1455
1456 //ENCODE_VOP_AGAIN: /* 12/30/00 */
1457
1458 /**************************************************************/
1459 /* Initialize Vol stream structure with application bitstream */
1460 /**************************************************************/
1461
1462 currVol = video->vol[currLayer];
1463 currVol->stream->bitstreamBuffer = bstream;
1464 currVol->stream->bufferSize = *size;
1465 BitstreamEncReset(currVol->stream);
1466 BitstreamSetOverrunBuffer(currVol->stream, video->overrunBuffer, video->oBSize, video);
1467
1468 /***********************************************************/
1469 /* Encode VOS and VOL Headers on first call for each layer */
1470 /***********************************************************/
1471
1472 if (video->volInitialize[currLayer])
1473 {
1474 video->currVop->timeInc = 0;
1475 video->prevBaseVop->timeInc = 0;
1476 if (!video->encParams->GetVolHeader[currLayer])
1477 pv_status = EncodeVOS_Start(encCtrl);
1478 }
1479
1480 /***************************************************/
1481 /* Copy Input Video Frame to Internal Video Buffer */
1482 /***************************************************/
1483 /* Determine Width and Height of Vop Layer */
1484
1485 width = encParams->LayerWidth[currLayer]; /* Get input width */
1486 height = encParams->LayerHeight[currLayer]; /* Get input height */
1487 /* Round Up to nearest multiple of 16 : MPEG-4 Standard */
1488
1489 width_16 = ((width + 15) / 16) * 16; /* Round up to nearest multiple of 16 */
1490 height_16 = ((height + 15) / 16) * 16; /* Round up to nearest multiple of 16 */
1491
1492 video->input = vid_in; /* point to the frame input */
1493
1494 /*// End ////////////////////////////// */
1495
1496
1497 /**************************************/
1498 /* Determine VOP Type */
1499 /* 6/2/2001, separate function */
1500 /**************************************/
1501 DetermineVopType(video, currLayer);
1502
1503 /****************************/
1504 /* Initialize VOP */
1505 /****************************/
1506 video->currVop->volID = currVol->volID;
1507 video->currVop->width = width_16;
1508 video->currVop->height = height_16;
1509 if (video->encParams->H263_Enabled) /* 11/28/05 */
1510 {
1511 video->currVop->pitch = width_16;
1512 }
1513 else
1514 {
1515 video->currVop->pitch = width_16 + 32;
1516 }
1517 video->currVop->timeInc = currVol->timeIncrement;
1518 video->currVop->vopCoded = 1;
1519 video->currVop->roundingType = 0;
1520 video->currVop->intraDCVlcThr = encParams->IntraDCVlcThr;
1521
1522 if (currLayer == 0
1523 #ifdef RANDOM_REFSELCODE /* add random selection of reference Vop */
1524 || random_val[rand_idx] || video->volInitialize[currLayer]
1525 #endif
1526 )
1527 {
1528 tempForwRefVop = video->forwardRefVop; /* keep initial state */
1529 if (tempForwRefVop != NULL) tempRefSelCode = tempForwRefVop->refSelectCode;
1530
1531 video->forwardRefVop = video->prevBaseVop;
1532 video->forwardRefVop->refSelectCode = 1;
1533 }
1534 #ifdef RANDOM_REFSELCODE
1535 else
1536 {
1537 tempForwRefVop = video->forwardRefVop; /* keep initial state */
1538 if (tempForwRefVop != NULL) tempRefSelCode = tempForwRefVop->refSelectCode;
1539
1540 video->forwardRefVop = video->prevEnhanceVop;
1541 video->forwardRefVop->refSelectCode = 0;
1542 }
1543 rand_idx++;
1544 rand_idx %= 30;
1545 #endif
1546
1547 video->currVop->refSelectCode = video->forwardRefVop->refSelectCode;
1548 video->currVop->gobNumber = 0;
1549 video->currVop->gobFrameID = video->currVop->predictionType;
1550 video->currVop->temporalRef = (modTime * 30 / 1001) % 256;
1551
1552 video->currVop->temporalInterval = 0;
1553
1554 if (video->currVop->predictionType == I_VOP)
1555 video->currVop->quantizer = encParams->InitQuantIvop[currLayer];
1556 else
1557 video->currVop->quantizer = encParams->InitQuantPvop[currLayer];
1558
1559
1560 /****************/
1561 /* Encode Vop */
1562 /****************/
1563 video->slice_coding = 0;
1564
1565 pv_status = EncodeVop(video);
1566 #ifdef _PRINT_STAT
1567 if (video->currVop->predictionType == I_VOP)
1568 printf(" I-VOP ");
1569 else
1570 printf(" P-VOP (ref.%d)", video->forwardRefVop->refSelectCode);
1571 #endif
1572
1573 /************************************/
1574 /* Update Skip Next Frame */
1575 /************************************/
1576 *nLayer = UpdateSkipNextFrame(video, nextModTime, size, pv_status);
1577 if (*nLayer == -1) /* skip current frame */
1578 {
1579 /* make sure that pointers are restored to the previous state */
1580 if (currLayer == 0)
1581 {
1582 video->forwardRefVop = tempForwRefVop; /* For P-Vop base only */
1583 if (video->forwardRefVop != NULL) video->forwardRefVop->refSelectCode = tempRefSelCode;
1584 }
1585
1586 return status;
1587 }
1588
1589 /* If I-VOP was encoded, reset IntraPeriod */
1590 if ((currLayer == 0) && (encParams->IntraPeriod > 0) && (video->currVop->predictionType == I_VOP))
1591 video->nextEncIVop = encParams->IntraPeriod;
1592
1593 /* Set HintTrack Information */
1594 if (currLayer != -1)
1595 {
1596 if (currVol->prevModuloTimeBase)
1597 video->hintTrackInfo.MTB = 1;
1598 else
1599 video->hintTrackInfo.MTB = 0;
1600 video->hintTrackInfo.LayerID = (UChar)currVol->volID;
1601 video->hintTrackInfo.CodeType = (UChar)video->currVop->predictionType;
1602 video->hintTrackInfo.RefSelCode = (UChar)video->currVop->refSelectCode;
1603 }
1604
1605 /************************************************/
1606 /* Determine nLayer and timeInc for next encode */
1607 /* 12/27/00 always go by the highest layer*/
1608 /************************************************/
1609
1610 /**********************************************************/
1611 /* Copy Reconstructed Buffer to Output Video Frame Buffer */
1612 /**********************************************************/
1613 vid_out->yChan = video->currVop->yChan;
1614 vid_out->uChan = video->currVop->uChan;
1615 vid_out->vChan = video->currVop->vChan;
1616 if (video->encParams->H263_Enabled)
1617 {
1618 vid_out->height = video->currVop->height; /* padded height */
1619 vid_out->pitch = video->currVop->width; /* padded width */
1620 }
1621 else
1622 {
1623 vid_out->height = video->currVop->height + 32; /* padded height */
1624 vid_out->pitch = video->currVop->width + 32; /* padded width */
1625 }
1626 //video_out->timestamp = video->modTime;
1627 vid_out->timestamp = (ULong)(((video->prevFrameNum[currLayer] * 1000) / encParams->LayerFrameRate[currLayer]) + video->modTimeRef + 0.5);
1628
1629 /*// End /////////////////////// */
1630
1631 /***********************************/
1632 /* Update Ouput bstream byte count */
1633 /***********************************/
1634
1635 *size = currVol->stream->byteCount;
1636
1637 /****************************************/
1638 /* Swap Vop Pointers for Base Layer */
1639 /****************************************/
1640 if (currLayer == 0)
1641 {
1642 temp = video->prevBaseVop;
1643 video->prevBaseVop = video->currVop;
1644 video->prevBaseVop->padded = 0; /* not padded */
1645 video->currVop = temp;
1646 video->forwardRefVop = video->prevBaseVop; /* For P-Vop base only */
1647 video->forwardRefVop->refSelectCode = 1;
1648 }
1649 else
1650 {
1651 temp = video->prevEnhanceVop;
1652 video->prevEnhanceVop = video->currVop;
1653 video->prevEnhanceVop->padded = 0; /* not padded */
1654 video->currVop = temp;
1655 video->forwardRefVop = video->prevEnhanceVop;
1656 video->forwardRefVop->refSelectCode = 0;
1657 }
1658
1659 /****************************************/
1660 /* Modify the intialize flag at the end.*/
1661 /****************************************/
1662 if (video->volInitialize[currLayer])
1663 video->volInitialize[currLayer] = 0;
1664
1665 return status;
1666 }
1667
1668 #ifndef NO_SLICE_ENCODE
1669 /* ======================================================================== */
1670 /* Function : PVEncodeFrameSet() */
1671 /* Date : 04/18/2000 */
1672 /* Purpose : Enter a video frame and perform front-end time check plus ME */
1673 /* In/out : */
1674 /* Return : PV_TRUE if successed, PV_FALSE if failed. */
1675 /* Modified : */
1676 /* */
1677 /* ======================================================================== */
PVEncodeFrameSet(VideoEncControls * encCtrl,VideoEncFrameIO * vid_in,ULong * nextModTime,Int * nLayer)1678 OSCL_EXPORT_REF Bool PVEncodeFrameSet(VideoEncControls *encCtrl, VideoEncFrameIO *vid_in, ULong *nextModTime, Int *nLayer)
1679 {
1680 Bool status = PV_TRUE;
1681 VideoEncData *video = (VideoEncData *)encCtrl->videoEncoderData;
1682 VideoEncParams *encParams = video->encParams;
1683 Vol *currVol;
1684 PV_STATUS EncodeVOS_Start(VideoEncControls *encCtrl);
1685 Int width_16, height_16;
1686 Int width, height;
1687 Int encodeVop = 0;
1688 void PaddingEdge(Vop *padVop);
1689 Int currLayer = -1;
1690 //Int nLayers = encParams->nLayers;
1691
1692 ULong modTime = vid_in->timestamp;
1693
1694 #ifdef RANDOM_REFSELCODE /* add random selection of reference Vop */
1695 Int random_val[30] = {0, 1, 1, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0, 0};
1696 static Int rand_idx = 0;
1697 #endif
1698 /*******************************************************/
1699 /* Determine Next Vop to encode, if any, and nLayer */
1700 /*******************************************************/
1701
1702 video->modTime = modTime;
1703
1704 //i = nLayers-1;
1705
1706 if (video->volInitialize[0]) /* first vol to code */
1707 {
1708 video->nextModTime = video->modTimeRef = ((modTime) - ((modTime) % 1000));
1709 }
1710
1711
1712 encodeVop = DetermineCodingLayer(video, nLayer, modTime);
1713
1714 currLayer = *nLayer;
1715
1716 /******************************************/
1717 /* If post-skipping still effective --- return */
1718 /******************************************/
1719
1720 if (!encodeVop) /* skip enh layer, no base layer coded --- return */
1721 {
1722 #ifdef _PRINT_STAT
1723 printf("No frame coded. Continue to next frame.");
1724 #endif
1725 *nLayer = -1;
1726
1727 /* expected next code time, convert back to millisec */
1728 *nextModTime = video->nextModTime;;
1729 return status;
1730 }
1731
1732 /**************************************************************/
1733 /* Initialize Vol stream structure with application bitstream */
1734 /**************************************************************/
1735
1736 currVol = video->vol[currLayer];
1737 currVol->stream->bufferSize = 0;
1738 BitstreamEncReset(currVol->stream);
1739
1740 /***********************************************************/
1741 /* Encode VOS and VOL Headers on first call for each layer */
1742 /***********************************************************/
1743
1744 if (video->volInitialize[currLayer])
1745 {
1746 video->currVop->timeInc = 0;
1747 video->prevBaseVop->timeInc = 0;
1748 }
1749
1750 /***************************************************/
1751 /* Copy Input Video Frame to Internal Video Buffer */
1752 /***************************************************/
1753 /* Determine Width and Height of Vop Layer */
1754
1755 width = encParams->LayerWidth[currLayer]; /* Get input width */
1756 height = encParams->LayerHeight[currLayer]; /* Get input height */
1757 /* Round Up to nearest multiple of 16 : MPEG-4 Standard */
1758
1759 width_16 = ((width + 15) / 16) * 16; /* Round up to nearest multiple of 16 */
1760 height_16 = ((height + 15) / 16) * 16; /* Round up to nearest multiple of 16 */
1761
1762 video->input = vid_in; /* point to the frame input */
1763
1764 /*// End ////////////////////////////// */
1765
1766
1767 /**************************************/
1768 /* Determine VOP Type */
1769 /* 6/2/2001, separate function */
1770 /**************************************/
1771 DetermineVopType(video, currLayer);
1772
1773 /****************************/
1774 /* Initialize VOP */
1775 /****************************/
1776 video->currVop->volID = currVol->volID;
1777 video->currVop->width = width_16;
1778 video->currVop->height = height_16;
1779 if (video->encParams->H263_Enabled) /* 11/28/05 */
1780 {
1781 video->currVop->pitch = width_16;
1782 }
1783 else
1784 {
1785 video->currVop->pitch = width_16 + 32;
1786 }
1787 video->currVop->timeInc = currVol->timeIncrement;
1788 video->currVop->vopCoded = 1;
1789 video->currVop->roundingType = 0;
1790 video->currVop->intraDCVlcThr = encParams->IntraDCVlcThr;
1791
1792 if (currLayer == 0
1793 #ifdef RANDOM_REFSELCODE /* add random selection of reference Vop */
1794 || random_val[rand_idx] || video->volInitialize[currLayer]
1795 #endif
1796 )
1797 {
1798 video->tempForwRefVop = video->forwardRefVop; /* keep initial state */
1799 if (video->tempForwRefVop != NULL) video->tempRefSelCode = video->tempForwRefVop->refSelectCode;
1800
1801 video->forwardRefVop = video->prevBaseVop;
1802 video->forwardRefVop->refSelectCode = 1;
1803 }
1804 #ifdef RANDOM_REFSELCODE
1805 else
1806 {
1807 video->tempForwRefVop = video->forwardRefVop; /* keep initial state */
1808 if (video->tempForwRefVop != NULL) video->tempRefSelCode = video->tempForwRefVop->refSelectCode;
1809
1810 video->forwardRefVop = video->prevEnhanceVop;
1811 video->forwardRefVop->refSelectCode = 0;
1812 }
1813 rand_idx++;
1814 rand_idx %= 30;
1815 #endif
1816
1817 video->currVop->refSelectCode = video->forwardRefVop->refSelectCode;
1818 video->currVop->gobNumber = 0;
1819 video->currVop->gobFrameID = video->currVop->predictionType;
1820 video->currVop->temporalRef = ((modTime) * 30 / 1001) % 256;
1821
1822 video->currVop->temporalInterval = 0;
1823
1824 if (video->currVop->predictionType == I_VOP)
1825 video->currVop->quantizer = encParams->InitQuantIvop[currLayer];
1826 else
1827 video->currVop->quantizer = encParams->InitQuantPvop[currLayer];
1828
1829 /****************/
1830 /* Encode Vop */
1831 /****************/
1832 video->slice_coding = 1;
1833
1834 /*pv_status =*/
1835 EncodeVop(video);
1836
1837 #ifdef _PRINT_STAT
1838 if (video->currVop->predictionType == I_VOP)
1839 printf(" I-VOP ");
1840 else
1841 printf(" P-VOP (ref.%d)", video->forwardRefVop->refSelectCode);
1842 #endif
1843
1844 /* Set HintTrack Information */
1845 if (currVol->prevModuloTimeBase)
1846 video->hintTrackInfo.MTB = 1;
1847 else
1848 video->hintTrackInfo.MTB = 0;
1849
1850 video->hintTrackInfo.LayerID = (UChar)currVol->volID;
1851 video->hintTrackInfo.CodeType = (UChar)video->currVop->predictionType;
1852 video->hintTrackInfo.RefSelCode = (UChar)video->currVop->refSelectCode;
1853
1854 return status;
1855 }
1856 #endif /* NO_SLICE_ENCODE */
1857
1858 #ifndef NO_SLICE_ENCODE
1859 /* ======================================================================== */
1860 /* Function : PVEncodePacket() */
1861 /* Date : 04/18/2002 */
1862 /* Purpose : Encode one packet and return bitstream */
1863 /* In/out : */
1864 /* Return : PV_TRUE if successed, PV_FALSE if failed. */
1865 /* Modified : */
1866 /* */
1867 /* ======================================================================== */
PVEncodeSlice(VideoEncControls * encCtrl,UChar * bstream,Int * size,Int * endofFrame,VideoEncFrameIO * vid_out,ULong * nextModTime)1868 OSCL_EXPORT_REF Bool PVEncodeSlice(VideoEncControls *encCtrl, UChar *bstream, Int *size,
1869 Int *endofFrame, VideoEncFrameIO *vid_out, ULong *nextModTime)
1870 {
1871 PV_STATUS pv_status;
1872 VideoEncData *video = (VideoEncData *)encCtrl->videoEncoderData;
1873 VideoEncParams *encParams = video->encParams;
1874 Vol *currVol;
1875 PV_STATUS EncodeVOS_Start(VideoEncControls *encCtrl);
1876 Vop *temp;
1877 void PaddingEdge(Vop *padVop);
1878 Int currLayer = video->currLayer;
1879 Int pre_skip;
1880 Int pre_size;
1881 /**************************************************************/
1882 /* Initialize Vol stream structure with application bitstream */
1883 /**************************************************************/
1884
1885 currVol = video->vol[currLayer];
1886 currVol->stream->bitstreamBuffer = bstream;
1887 pre_size = currVol->stream->byteCount;
1888 currVol->stream->bufferSize = pre_size + (*size);
1889
1890 /***********************************************************/
1891 /* Encode VOS and VOL Headers on first call for each layer */
1892 /***********************************************************/
1893
1894 if (video->volInitialize[currLayer])
1895 {
1896 if (!video->encParams->GetVolHeader[currLayer])
1897 pv_status = EncodeVOS_Start(encCtrl);
1898 }
1899
1900 /****************/
1901 /* Encode Slice */
1902 /****************/
1903 pv_status = EncodeSlice(video);
1904
1905 *endofFrame = 0;
1906
1907 if (video->mbnum >= currVol->nTotalMB && !video->end_of_buf)
1908 {
1909 *endofFrame = 1;
1910
1911 /************************************/
1912 /* Update Skip Next Frame */
1913 /************************************/
1914 pre_skip = UpdateSkipNextFrame(video, nextModTime, size, pv_status); /* modified such that no pre-skipped */
1915
1916 if (pre_skip == -1) /* error */
1917 {
1918 *endofFrame = -1;
1919 /* make sure that pointers are restored to the previous state */
1920 if (currLayer == 0)
1921 {
1922 video->forwardRefVop = video->tempForwRefVop; /* For P-Vop base only */
1923 video->forwardRefVop->refSelectCode = video->tempRefSelCode;
1924 }
1925
1926 return pv_status;
1927 }
1928
1929 /* If I-VOP was encoded, reset IntraPeriod */
1930 if ((currLayer == 0) && (encParams->IntraPeriod > 0) && (video->currVop->predictionType == I_VOP))
1931 video->nextEncIVop = encParams->IntraPeriod;
1932
1933 /**********************************************************/
1934 /* Copy Reconstructed Buffer to Output Video Frame Buffer */
1935 /**********************************************************/
1936 vid_out->yChan = video->currVop->yChan;
1937 vid_out->uChan = video->currVop->uChan;
1938 vid_out->vChan = video->currVop->vChan;
1939 if (video->encParams->H263_Enabled)
1940 {
1941 vid_out->height = video->currVop->height; /* padded height */
1942 vid_out->pitch = video->currVop->width; /* padded width */
1943 }
1944 else
1945 {
1946 vid_out->height = video->currVop->height + 32; /* padded height */
1947 vid_out->pitch = video->currVop->width + 32; /* padded width */
1948 }
1949 //vid_out->timestamp = video->modTime;
1950 vid_out->timestamp = (ULong)(((video->prevFrameNum[currLayer] * 1000) / encParams->LayerFrameRate[currLayer]) + video->modTimeRef + 0.5);
1951
1952 /*// End /////////////////////// */
1953
1954 /****************************************/
1955 /* Swap Vop Pointers for Base Layer */
1956 /****************************************/
1957
1958 if (currLayer == 0)
1959 {
1960 temp = video->prevBaseVop;
1961 video->prevBaseVop = video->currVop;
1962 video->prevBaseVop->padded = 0; /* not padded */
1963 video->currVop = temp;
1964 video->forwardRefVop = video->prevBaseVop; /* For P-Vop base only */
1965 video->forwardRefVop->refSelectCode = 1;
1966 }
1967 else
1968 {
1969 temp = video->prevEnhanceVop;
1970 video->prevEnhanceVop = video->currVop;
1971 video->prevEnhanceVop->padded = 0; /* not padded */
1972 video->currVop = temp;
1973 video->forwardRefVop = video->prevEnhanceVop;
1974 video->forwardRefVop->refSelectCode = 0;
1975 }
1976 }
1977
1978 /***********************************/
1979 /* Update Ouput bstream byte count */
1980 /***********************************/
1981
1982 *size = currVol->stream->byteCount - pre_size;
1983
1984 /****************************************/
1985 /* Modify the intialize flag at the end.*/
1986 /****************************************/
1987 if (video->volInitialize[currLayer])
1988 video->volInitialize[currLayer] = 0;
1989
1990 return pv_status;
1991 }
1992 #endif /* NO_SLICE_ENCODE */
1993
1994
1995 /* ======================================================================== */
1996 /* Function : PVGetH263ProfileLevelID() */
1997 /* Date : 02/05/2003 */
1998 /* Purpose : Get H.263 Profile ID and level ID for profile 0 */
1999 /* In/out : Profile ID=0, levelID is what we want */
2000 /* Return : PV_TRUE if successed, PV_FALSE if failed. */
2001 /* Modified : */
2002 /* Note : h263Level[8], rBR_bound[8], max_h263_framerate[2] */
2003 /* max_h263_width[2], max_h263_height[2] are global */
2004 /* */
2005 /* ======================================================================== */
PVGetH263ProfileLevelID(VideoEncControls * encCtrl,Int * profileID,Int * levelID)2006 OSCL_EXPORT_REF Bool PVGetH263ProfileLevelID(VideoEncControls *encCtrl, Int *profileID, Int *levelID)
2007 {
2008 VideoEncData *encData;
2009 Int width, height;
2010 float bitrate_r, framerate;
2011
2012
2013 /* For this version, we only support H.263 profile 0 */
2014 *profileID = 0;
2015
2016 *levelID = 0;
2017 encData = (VideoEncData *)encCtrl->videoEncoderData;
2018
2019 if (encData == NULL)
2020 return PV_FALSE;
2021 if (encData->encParams == NULL)
2022 return PV_FALSE;
2023
2024 if (!encData->encParams->H263_Enabled) return PV_FALSE;
2025
2026
2027 /* get image width, height, bitrate and framerate */
2028 width = encData->encParams->LayerWidth[0];
2029 height = encData->encParams->LayerHeight[0];
2030 bitrate_r = (float)(encData->encParams->LayerBitRate[0]) / (float)64000.0;
2031 framerate = encData->encParams->LayerFrameRate[0];
2032 if (!width || !height || !(bitrate_r > 0 && framerate > 0)) return PV_FALSE;
2033
2034 /* This is the most frequent case : level 10 */
2035 if (bitrate_r <= rBR_bound[1] && framerate <= max_h263_framerate[0] &&
2036 (width <= max_h263_width[0] && height <= max_h263_height[0]))
2037 {
2038 *levelID = h263Level[1];
2039 return PV_TRUE;
2040 }
2041 else if (bitrate_r > rBR_bound[4] ||
2042 (width > max_h263_width[1] || height > max_h263_height[1]) ||
2043 framerate > max_h263_framerate[1]) /* check the highest level 70 */
2044 {
2045 *levelID = h263Level[7];
2046 return PV_TRUE;
2047 }
2048 else /* search level 20, 30, 40 */
2049 {
2050
2051 /* pick out level 20 */
2052 if (bitrate_r <= rBR_bound[2] &&
2053 ((width <= max_h263_width[0] && height <= max_h263_height[0] && framerate <= max_h263_framerate[1]) ||
2054 (width <= max_h263_width[1] && height <= max_h263_height[1] && framerate <= max_h263_framerate[0])))
2055 {
2056 *levelID = h263Level[2];
2057 return PV_TRUE;
2058 }
2059 else /* width, height and framerate are ok, now choose level 30 or 40 */
2060 {
2061 *levelID = (bitrate_r <= rBR_bound[3] ? h263Level[3] : h263Level[4]);
2062 return PV_TRUE;
2063 }
2064 }
2065 }
2066
2067 /* ======================================================================== */
2068 /* Function : PVGetMPEG4ProfileLevelID() */
2069 /* Date : 26/06/2008 */
2070 /* Purpose : Get MPEG4 Level after initialized */
2071 /* In/out : profile_level according to interface */
2072 /* Return : PV_TRUE if successed, PV_FALSE if failed. */
2073 /* Modified : */
2074 /* */
2075 /* ======================================================================== */
PVGetMPEG4ProfileLevelID(VideoEncControls * encCtrl,Int * profile_level,Int nLayer)2076 OSCL_EXPORT_REF Bool PVGetMPEG4ProfileLevelID(VideoEncControls *encCtrl, Int *profile_level, Int nLayer)
2077 {
2078 VideoEncData* video;
2079 Int i;
2080
2081 video = (VideoEncData *)encCtrl->videoEncoderData;
2082
2083 if (nLayer == 0)
2084 {
2085 for (i = 0; i < 8; i++)
2086 {
2087 if (video->encParams->ProfileLevel[0] == profile_level_code[i])
2088 {
2089 break;
2090 }
2091 }
2092 *profile_level = i;
2093 }
2094 else
2095 {
2096 for (i = 0; i < 8; i++)
2097 {
2098 if (video->encParams->ProfileLevel[0] == scalable_profile_level_code[i])
2099 {
2100 break;
2101 }
2102 }
2103 *profile_level = i + SIMPLE_SCALABLE_PROFILE_LEVEL0;
2104 }
2105
2106 return true;
2107 }
2108
2109 #ifndef LIMITED_API
2110 /* ======================================================================== */
2111 /* Function : PVUpdateEncFrameRate */
2112 /* Date : 04/08/2002 */
2113 /* Purpose : Update target frame rates of the encoded base and enhance */
2114 /* layer(if any) while encoding operation is ongoing */
2115 /* In/out : */
2116 /* Return : PV_TRUE if successed, PV_FALSE if failed. */
2117 /* Modified : */
2118 /* */
2119 /* ======================================================================== */
2120
PVUpdateEncFrameRate(VideoEncControls * encCtrl,float * frameRate)2121 OSCL_EXPORT_REF Bool PVUpdateEncFrameRate(VideoEncControls *encCtrl, float *frameRate)
2122 {
2123 VideoEncData *encData;
2124 Int i;// nTotalMB, mbPerSec;
2125
2126 encData = (VideoEncData *)encCtrl->videoEncoderData;
2127
2128 if (encData == NULL)
2129 return PV_FALSE;
2130 if (encData->encParams == NULL)
2131 return PV_FALSE;
2132
2133 /* Update the framerates for all the layers */
2134 for (i = 0; i < encData->encParams->nLayers; i++)
2135 {
2136
2137 /* New check: encoding framerate should be consistent with the given profile and level */
2138 //nTotalMB = (((encData->encParams->LayerWidth[i]+15)/16)*16)*(((encData->encParams->LayerHeight[i]+15)/16)*16)/(16*16);
2139 //mbPerSec = (Int)(nTotalMB * frameRate[i]);
2140 //if(mbPerSec > encData->encParams->LayerMaxMbsPerSec[i]) return PV_FALSE;
2141 if (frameRate[i] > encData->encParams->LayerMaxFrameRate[i]) return PV_FALSE; /* set by users or profile */
2142
2143 encData->encParams->LayerFrameRate[i] = frameRate[i];
2144 }
2145
2146 return RC_UpdateBXRCParams((void*) encData);
2147
2148 }
2149 #endif
2150 #ifndef LIMITED_API
2151 /* ======================================================================== */
2152 /* Function : PVUpdateBitRate */
2153 /* Date : 04/08/2002 */
2154 /* Purpose : Update target bit rates of the encoded base and enhance */
2155 /* layer(if any) while encoding operation is ongoing */
2156 /* In/out : */
2157 /* Return : PV_TRUE if successed, PV_FALSE if failed. */
2158 /* Modified : */
2159 /* */
2160 /* ======================================================================== */
2161
PVUpdateBitRate(VideoEncControls * encCtrl,Int * bitRate)2162 OSCL_EXPORT_REF Bool PVUpdateBitRate(VideoEncControls *encCtrl, Int *bitRate)
2163 {
2164 VideoEncData *encData;
2165 Int i;
2166
2167 encData = (VideoEncData *)encCtrl->videoEncoderData;
2168
2169 if (encData == NULL)
2170 return PV_FALSE;
2171 if (encData->encParams == NULL)
2172 return PV_FALSE;
2173
2174 /* Update the bitrates for all the layers */
2175 for (i = 0; i < encData->encParams->nLayers; i++)
2176 {
2177 if (bitRate[i] > encData->encParams->LayerMaxBitRate[i]) /* set by users or profile */
2178 {
2179 return PV_FALSE;
2180 }
2181 encData->encParams->LayerBitRate[i] = bitRate[i];
2182 }
2183
2184 return RC_UpdateBXRCParams((void*) encData);
2185
2186 }
2187 #endif
2188 #ifndef LIMITED_API
2189 /* ============================================================================ */
2190 /* Function : PVUpdateVBVDelay() */
2191 /* Date : 4/23/2004 */
2192 /* Purpose : Update VBV buffer size(in delay) */
2193 /* In/out : */
2194 /* Return : PV_TRUE if successed, PV_FALSE if failed. */
2195 /* Modified : */
2196 /* */
2197 /* ============================================================================ */
2198
PVUpdateVBVDelay(VideoEncControls * encCtrl,float delay)2199 Bool PVUpdateVBVDelay(VideoEncControls *encCtrl, float delay)
2200 {
2201
2202 VideoEncData *encData;
2203 Int total_bitrate, max_buffer_size;
2204 int index;
2205
2206 encData = (VideoEncData *)encCtrl->videoEncoderData;
2207
2208 if (encData == NULL)
2209 return PV_FALSE;
2210 if (encData->encParams == NULL)
2211 return PV_FALSE;
2212
2213 /* Check whether the input delay is valid based on the given profile */
2214 total_bitrate = (encData->encParams->nLayers == 1 ? encData->encParams->LayerBitRate[0] :
2215 encData->encParams->LayerBitRate[1]);
2216 index = encData->encParams->profile_table_index;
2217 max_buffer_size = (encData->encParams->nLayers == 1 ? profile_level_max_VBV_size[index] :
2218 scalable_profile_level_max_VBV_size[index]);
2219
2220 if (total_bitrate*delay > (float)max_buffer_size)
2221 return PV_FALSE;
2222
2223 encData->encParams->VBV_delay = delay;
2224 return PV_TRUE;
2225
2226 }
2227 #endif
2228 #ifndef LIMITED_API
2229 /* ======================================================================== */
2230 /* Function : PVUpdateIFrameInterval() */
2231 /* Date : 04/10/2002 */
2232 /* Purpose : updates the INTRA frame refresh interval while encoding */
2233 /* is ongoing */
2234 /* In/out : */
2235 /* Return : PV_TRUE if successed, PV_FALSE if failed. */
2236 /* Modified : */
2237 /* */
2238 /* ======================================================================== */
2239
PVUpdateIFrameInterval(VideoEncControls * encCtrl,Int aIFramePeriod)2240 OSCL_EXPORT_REF Bool PVUpdateIFrameInterval(VideoEncControls *encCtrl, Int aIFramePeriod)
2241 {
2242 VideoEncData *encData;
2243
2244 encData = (VideoEncData *)encCtrl->videoEncoderData;
2245
2246 if (encData == NULL)
2247 return PV_FALSE;
2248 if (encData->encParams == NULL)
2249 return PV_FALSE;
2250
2251 encData->encParams->IntraPeriod = aIFramePeriod;
2252 return PV_TRUE;
2253 }
2254 #endif
2255 #ifndef LIMITED_API
2256 /* ======================================================================== */
2257 /* Function : PVSetNumIntraMBRefresh() */
2258 /* Date : 08/05/2003 */
2259 /* Purpose : */
2260 /* In/out : */
2261 /* Return : PV_TRUE if successed, PV_FALSE if failed. */
2262 /* Modified : */
2263 /* */
2264 /* ======================================================================== */
PVUpdateNumIntraMBRefresh(VideoEncControls * encCtrl,Int numMB)2265 OSCL_EXPORT_REF Bool PVUpdateNumIntraMBRefresh(VideoEncControls *encCtrl, Int numMB)
2266 {
2267 VideoEncData *encData;
2268
2269 encData = (VideoEncData *)encCtrl->videoEncoderData;
2270
2271 if (encData == NULL)
2272 return PV_FALSE;
2273
2274 encData->encParams->Refresh = numMB;
2275
2276 return PV_TRUE;
2277 }
2278 #endif
2279 #ifndef LIMITED_API
2280 /* ======================================================================== */
2281 /* Function : PVIFrameRequest() */
2282 /* Date : 04/10/2002 */
2283 /* Purpose : encodes the next base frame as an I-Vop */
2284 /* In/out : */
2285 /* Return : PV_TRUE if successed, PV_FALSE if failed. */
2286 /* Modified : */
2287 /* */
2288 /* ======================================================================== */
2289
PVIFrameRequest(VideoEncControls * encCtrl)2290 OSCL_EXPORT_REF Bool PVIFrameRequest(VideoEncControls *encCtrl)
2291 {
2292 VideoEncData *encData;
2293
2294 encData = (VideoEncData *)encCtrl->videoEncoderData;
2295
2296 if (encData == NULL)
2297 return PV_FALSE;
2298 if (encData->encParams == NULL)
2299 return PV_FALSE;
2300
2301 encData->nextEncIVop = 1;
2302 return PV_TRUE;
2303 }
2304 #endif
2305 #ifndef LIMITED_API
2306 /* ======================================================================== */
2307 /* Function : PVGetEncMemoryUsage() */
2308 /* Date : 10/17/2000 */
2309 /* Purpose : */
2310 /* In/out : */
2311 /* Return : PV_TRUE if successed, PV_FALSE if failed. */
2312 /* Modified : */
2313 /* */
2314 /* ======================================================================== */
2315
PVGetEncMemoryUsage(VideoEncControls * encCtrl)2316 OSCL_EXPORT_REF Int PVGetEncMemoryUsage(VideoEncControls *encCtrl)
2317 {
2318 VideoEncData *encData;
2319
2320 encData = (VideoEncData *)encCtrl->videoEncoderData;
2321
2322 if (encData == NULL)
2323 return PV_FALSE;
2324 if (encData->encParams == NULL)
2325 return PV_FALSE;
2326 return encData->encParams->MemoryUsage;
2327 }
2328 #endif
2329
2330 /* ======================================================================== */
2331 /* Function : PVGetHintTrack() */
2332 /* Date : 1/17/2001, */
2333 /* Purpose : */
2334 /* In/out : */
2335 /* Return : PV_TRUE if successed, PV_FALSE if failed. */
2336 /* Modified : */
2337 /* */
2338 /* ======================================================================== */
2339
PVGetHintTrack(VideoEncControls * encCtrl,MP4HintTrack * info)2340 OSCL_EXPORT_REF Bool PVGetHintTrack(VideoEncControls *encCtrl, MP4HintTrack *info)
2341 {
2342 VideoEncData *encData;
2343
2344 encData = (VideoEncData *)encCtrl->videoEncoderData;
2345
2346 if (encData == NULL)
2347 return PV_FALSE;
2348 if (encData->encParams == NULL)
2349 return PV_FALSE;
2350 info->MTB = encData->hintTrackInfo.MTB;
2351 info->LayerID = encData->hintTrackInfo.LayerID;
2352 info->CodeType = encData->hintTrackInfo.CodeType;
2353 info->RefSelCode = encData->hintTrackInfo.RefSelCode;
2354
2355 return PV_TRUE;
2356 }
2357
2358 /* ======================================================================== */
2359 /* Function : PVGetMaxVideoFrameSize() */
2360 /* Date : 7/17/2001, */
2361 /* Purpose : Function merely returns the maximum buffer size */
2362 /* In/out : */
2363 /* Return : PV_TRUE if successed, PV_FALSE if failed. */
2364 /* Modified : */
2365 /* */
2366 /* ======================================================================== */
2367
PVGetMaxVideoFrameSize(VideoEncControls * encCtrl,Int * maxVideoFrameSize)2368 OSCL_EXPORT_REF Bool PVGetMaxVideoFrameSize(VideoEncControls *encCtrl, Int *maxVideoFrameSize)
2369 {
2370 VideoEncData *encData;
2371
2372 encData = (VideoEncData *)encCtrl->videoEncoderData;
2373
2374 if (encData == NULL)
2375 return PV_FALSE;
2376 if (encData->encParams == NULL)
2377 return PV_FALSE;
2378
2379
2380
2381 *maxVideoFrameSize = encData->encParams->BufferSize[0];
2382
2383 if (encData->encParams->nLayers == 2)
2384 if (*maxVideoFrameSize < encData->encParams->BufferSize[1])
2385 *maxVideoFrameSize = encData->encParams->BufferSize[1];
2386 *maxVideoFrameSize >>= 3; /* Convert to Bytes */
2387
2388 if (*maxVideoFrameSize <= 4000)
2389 *maxVideoFrameSize = 4000;
2390
2391 return PV_TRUE;
2392 }
2393 #ifndef LIMITED_API
2394 /* ======================================================================== */
2395 /* Function : PVGetVBVSize() */
2396 /* Date : 4/15/2002 */
2397 /* Purpose : Function merely returns the maximum buffer size */
2398 /* In/out : */
2399 /* Return : PV_TRUE if successed, PV_FALSE if failed. */
2400 /* Modified : */
2401 /* */
2402 /* ======================================================================== */
2403
PVGetVBVSize(VideoEncControls * encCtrl,Int * VBVSize)2404 OSCL_EXPORT_REF Bool PVGetVBVSize(VideoEncControls *encCtrl, Int *VBVSize)
2405 {
2406 VideoEncData *encData;
2407
2408 encData = (VideoEncData *)encCtrl->videoEncoderData;
2409
2410 if (encData == NULL)
2411 return PV_FALSE;
2412 if (encData->encParams == NULL)
2413 return PV_FALSE;
2414
2415 *VBVSize = encData->encParams->BufferSize[0];
2416 if (encData->encParams->nLayers == 2)
2417 *VBVSize += encData->encParams->BufferSize[1];
2418
2419 return PV_TRUE;
2420
2421 }
2422 #endif
2423 /* ======================================================================== */
2424 /* Function : EncodeVOS_Start() */
2425 /* Date : 08/22/2000 */
2426 /* Purpose : Encodes the VOS,VO, and VOL or Short Headers */
2427 /* In/out : */
2428 /* Return : PV_TRUE if successed, PV_FALSE if failed. */
2429 /* Modified : */
2430 /* */
2431 /* ======================================================================== */
EncodeVOS_Start(VideoEncControls * encoderControl)2432 PV_STATUS EncodeVOS_Start(VideoEncControls *encoderControl)
2433 {
2434
2435 VideoEncData *video = (VideoEncData *)encoderControl->videoEncoderData;
2436 Vol *currVol = video->vol[video->currLayer];
2437 PV_STATUS status = PV_SUCCESS;
2438 //int profile_level=0x01;
2439 BitstreamEncVideo *stream = video->bitstream1;
2440 int i, j;
2441
2442 /********************************/
2443 /* Check for short_video_header */
2444 /********************************/
2445 if (currVol->shortVideoHeader == 1)
2446 return status;
2447 else
2448 {
2449 /* Short Video Header or M4V */
2450
2451 /**************************/
2452 /* VisualObjectSequence ()*/
2453 /**************************/
2454 status = BitstreamPutGT16Bits(stream, 32, SESSION_START_CODE);
2455 /* Determine profile_level */
2456 status = BitstreamPutBits(stream, 8, video->encParams->ProfileLevel[video->currLayer]);
2457
2458 /******************/
2459 /* VisualObject() */
2460 /******************/
2461
2462 status = BitstreamPutGT16Bits(stream, 32, VISUAL_OBJECT_START_CODE);
2463 status = BitstreamPut1Bits(stream, 0x00); /* visual object identifier */
2464 status = BitstreamPutBits(stream, 4, 0x01); /* visual object Type == "video ID" */
2465 status = BitstreamPut1Bits(stream, 0x00); /* no video signal type */
2466
2467 /*temp = */
2468 BitstreamMpeg4ByteAlignStuffing(stream);
2469
2470
2471 status = BitstreamPutGT16Bits(stream, 27, VO_START_CODE);/* byte align: should be 2 bits */
2472 status = BitstreamPutBits(stream, 5, 0x00);/* Video ID = 0 */
2473
2474
2475
2476 /**********************/
2477 /* VideoObjectLayer() */
2478 /**********************/
2479 if (currVol->shortVideoHeader == 0)
2480 { /* M4V else Short Video Header */
2481 status = BitstreamPutGT16Bits(stream, VOL_START_CODE_LENGTH, VOL_START_CODE);
2482 status = BitstreamPutBits(stream, 4, currVol->volID);/* video_object_layer_id */
2483 status = BitstreamPut1Bits(stream, 0x00);/* Random Access = 0 */
2484
2485 if (video->currLayer == 0)
2486 status = BitstreamPutBits(stream, 8, 0x01);/* Video Object Type Indication = 1 ... Simple Object Type */
2487 else
2488 status = BitstreamPutBits(stream, 8, 0x02);/* Video Object Type Indication = 2 ... Simple Scalable Object Type */
2489
2490 status = BitstreamPut1Bits(stream, 0x00);/* is_object_layer_identifer = 0 */
2491
2492
2493 status = BitstreamPutBits(stream, 4, 0x01); /* aspect_ratio_info = 1 ... 1:1(Square) */
2494 status = BitstreamPut1Bits(stream, 0x00);/* vol_control_parameters = 0 */
2495 status = BitstreamPutBits(stream, 2, 0x00);/* video_object_layer_shape = 00 ... rectangular */
2496 status = BitstreamPut1Bits(stream, 0x01);/* marker bit */
2497 status = BitstreamPutGT8Bits(stream, 16, currVol->timeIncrementResolution);/* vop_time_increment_resolution */
2498 status = BitstreamPut1Bits(stream, 0x01);/* marker bit */
2499 status = BitstreamPut1Bits(stream, currVol->fixedVopRate);/* fixed_vop_rate = 0 */
2500
2501 /* For Rectangular VO layer shape */
2502 status = BitstreamPut1Bits(stream, 0x01);/* marker bit */
2503 status = BitstreamPutGT8Bits(stream, 13, currVol->width);/* video_object_layer_width */
2504 status = BitstreamPut1Bits(stream, 0x01);/* marker bit */
2505 status = BitstreamPutGT8Bits(stream, 13, currVol->height);/* video_object_layer_height */
2506 status = BitstreamPut1Bits(stream, 0x01);/*marker bit */
2507
2508 status = BitstreamPut1Bits(stream, 0x00);/*interlaced = 0 */
2509 status = BitstreamPut1Bits(stream, 0x01);/* obmc_disable = 1 */
2510 status = BitstreamPut1Bits(stream, 0x00);/* sprite_enable = 0 */
2511 status = BitstreamPut1Bits(stream, 0x00);/* not_8_bit = 0 */
2512 status = BitstreamPut1Bits(stream, currVol->quantType);/* quant_type */
2513
2514 if (currVol->quantType)
2515 {
2516 status = BitstreamPut1Bits(stream, currVol->loadIntraQuantMat); /* Intra quant matrix */
2517 if (currVol->loadIntraQuantMat)
2518 {
2519 for (j = 63; j >= 1; j--)
2520 if (currVol->iqmat[*(zigzag_i+j)] != currVol->iqmat[*(zigzag_i+j-1)])
2521 break;
2522 if ((j == 1) && (currVol->iqmat[*(zigzag_i+j)] == currVol->iqmat[*(zigzag_i+j-1)]))
2523 j = 0;
2524 for (i = 0; i < j + 1; i++)
2525 BitstreamPutBits(stream, 8, currVol->iqmat[*(zigzag_i+i)]);
2526 if (j < 63)
2527 BitstreamPutBits(stream, 8, 0);
2528 }
2529 else
2530 {
2531 for (j = 0; j < 64; j++)
2532 currVol->iqmat[j] = mpeg_iqmat_def[j];
2533
2534 }
2535 status = BitstreamPut1Bits(stream, currVol->loadNonIntraQuantMat); /* Non-Intra quant matrix */
2536 if (currVol->loadNonIntraQuantMat)
2537 {
2538 for (j = 63; j >= 1; j--)
2539 if (currVol->niqmat[*(zigzag_i+j)] != currVol->niqmat[*(zigzag_i+j-1)])
2540 break;
2541 if ((j == 1) && (currVol->niqmat[*(zigzag_i+j)] == currVol->niqmat[*(zigzag_i+j-1)]))
2542 j = 0;
2543 for (i = 0; i < j + 1; i++)
2544 BitstreamPutBits(stream, 8, currVol->niqmat[*(zigzag_i+i)]);
2545 if (j < 63)
2546 BitstreamPutBits(stream, 8, 0);
2547 }
2548 else
2549 {
2550 for (j = 0; j < 64; j++)
2551 currVol->niqmat[j] = mpeg_nqmat_def[j];
2552 }
2553 }
2554
2555 status = BitstreamPut1Bits(stream, 0x01); /* complexity_estimation_disable = 1 */
2556 status = BitstreamPut1Bits(stream, currVol->ResyncMarkerDisable);/* Resync_marker_disable */
2557 status = BitstreamPut1Bits(stream, currVol->dataPartitioning);/* Data partitioned */
2558
2559 if (currVol->dataPartitioning)
2560 status = BitstreamPut1Bits(stream, currVol->useReverseVLC); /* Reversible_vlc */
2561
2562
2563 if (currVol->scalability) /* Scalability*/
2564 {
2565
2566 status = BitstreamPut1Bits(stream, currVol->scalability);/* Scalability = 1 */
2567 status = BitstreamPut1Bits(stream, currVol->scalType);/* hierarchy _type ... Spatial= 0 and Temporal = 1 */
2568 status = BitstreamPutBits(stream, 4, currVol->refVolID);/* ref_layer_id */
2569 status = BitstreamPut1Bits(stream, currVol->refSampDir);/* ref_layer_sampling_direc*/
2570 status = BitstreamPutBits(stream, 5, currVol->horSamp_n);/*hor_sampling_factor_n*/
2571 status = BitstreamPutBits(stream, 5, currVol->horSamp_m);/*hor_sampling_factor_m*/
2572 status = BitstreamPutBits(stream, 5, currVol->verSamp_n);/*vert_sampling_factor_n*/
2573 status = BitstreamPutBits(stream, 5, currVol->verSamp_m);/*vert_sampling_factor_m*/
2574 status = BitstreamPut1Bits(stream, currVol->enhancementType);/* enhancement_type*/
2575 }
2576 else /* No Scalability */
2577 status = BitstreamPut1Bits(stream, currVol->scalability);/* Scalability = 0 */
2578
2579 /*temp = */
2580 BitstreamMpeg4ByteAlignStuffing(stream); /* Byte align Headers for VOP */
2581 }
2582 }
2583
2584 return status;
2585 }
2586
2587 /* ======================================================================== */
2588 /* Function : VOS_End() */
2589 /* Date : 08/22/2000 */
2590 /* Purpose : Visual Object Sequence End */
2591 /* In/out : */
2592 /* Return : PV_TRUE if successed, PV_FALSE if failed. */
2593 /* Modified : */
2594 /* */
2595 /* ======================================================================== */
2596
VOS_End(VideoEncControls * encoderControl)2597 PV_STATUS VOS_End(VideoEncControls *encoderControl)
2598 {
2599 PV_STATUS status = PV_SUCCESS;
2600 VideoEncData *video = (VideoEncData *)encoderControl->videoEncoderData;
2601 Vol *currVol = video->vol[video->currLayer];
2602 BitstreamEncVideo *stream = currVol->stream;
2603
2604
2605 status = BitstreamPutBits(stream, SESSION_END_CODE, 32);
2606
2607 return status;
2608 }
2609
2610 /* ======================================================================== */
2611 /* Function : DetermineCodingLayer */
2612 /* Date : 06/02/2001 */
2613 /* Purpose : Find layer to code based on current mod time, assuming that
2614 it's time to encode enhanced layer. */
2615 /* In/out : */
2616 /* Return : Number of layer to code. */
2617 /* Modified : */
2618 /* */
2619 /* ======================================================================== */
2620
DetermineCodingLayer(VideoEncData * video,Int * nLayer,ULong modTime)2621 Int DetermineCodingLayer(VideoEncData *video, Int *nLayer, ULong modTime)
2622 {
2623 Vol **vol = video->vol;
2624 VideoEncParams *encParams = video->encParams;
2625 Int numLayers = encParams->nLayers;
2626 UInt modTimeRef = video->modTimeRef;
2627 float *LayerFrameRate = encParams->LayerFrameRate;
2628 UInt frameNum[4], frameTick;
2629 ULong frameModTime, nextFrmModTime;
2630 #ifdef REDUCE_FRAME_VARIANCE /* To limit how close 2 frames can be */
2631 float frameInterval;
2632 #endif
2633 float srcFrameInterval;
2634 Int frameInc;
2635 Int i, extra_skip;
2636 Int encodeVop = 0;
2637
2638 i = numLayers - 1;
2639
2640 if (modTime - video->nextModTime > ((ULong)(-1)) >> 1) /* next time wrapped around */
2641 return 0; /* not time to code it yet */
2642
2643 video->relLayerCodeTime[i] -= 1000;
2644 video->nextEncIVop--; /* number of Vops in highest layer resolution. */
2645 video->numVopsInGOP++;
2646
2647 /* from this point frameModTime and nextFrmModTime are internal */
2648
2649 frameNum[i] = (UInt)((modTime - modTimeRef) * LayerFrameRate[i] + 500) / 1000;
2650 if (video->volInitialize[i])
2651 {
2652 video->prevFrameNum[i] = frameNum[i] - 1;
2653 }
2654 else if (frameNum[i] <= video->prevFrameNum[i])
2655 {
2656 return 0; /* do not encode this frame */
2657 }
2658
2659 /**** this part computes expected next frame *******/
2660 frameModTime = (ULong)(((frameNum[i] * 1000) / LayerFrameRate[i]) + modTimeRef + 0.5); /* rec. time */
2661 nextFrmModTime = (ULong)((((frameNum[i] + 1) * 1000) / LayerFrameRate[i]) + modTimeRef + 0.5); /* rec. time */
2662
2663 srcFrameInterval = 1000 / video->FrameRate;
2664
2665 video->nextModTime = nextFrmModTime - (ULong)(srcFrameInterval / 2.) - 1; /* between current and next frame */
2666
2667 #ifdef REDUCE_FRAME_VARIANCE /* To limit how close 2 frames can be */
2668 frameInterval = 1000 / LayerFrameRate[i]; /* next rec. time */
2669 delta = (Int)(frameInterval / 4); /* empirical number */
2670 if (video->nextModTime - modTime < (ULong)delta) /* need to move nextModTime further. */
2671 {
2672 video->nextModTime += ((delta - video->nextModTime + modTime)); /* empirical formula */
2673 }
2674 #endif
2675 /****************************************************/
2676
2677 /* map frame no.to tick from modTimeRef */
2678 /*frameTick = (frameNum[i]*vol[i]->timeIncrementResolution) ;
2679 frameTick = (UInt)((frameTick + (encParams->LayerFrameRate[i]/2))/encParams->LayerFrameRate[i]);*/
2680 /* 11/16/01, change frameTick to be the closest tick from the actual modTime */
2681 /* 12/12/02, add (double) to prevent large number wrap-around */
2682 frameTick = (Int)(((double)(modTime - modTimeRef) * vol[i]->timeIncrementResolution + 500) / 1000);
2683
2684 /* find timeIncrement to be put in the bitstream */
2685 /* refTick is second boundary reference. */
2686 vol[i]->timeIncrement = frameTick - video->refTick[i];
2687
2688
2689 vol[i]->moduloTimeBase = 0;
2690 while (vol[i]->timeIncrement >= vol[i]->timeIncrementResolution)
2691 {
2692 vol[i]->timeIncrement -= vol[i]->timeIncrementResolution;
2693 vol[i]->moduloTimeBase++;
2694 /* do not update refTick and modTimeRef yet, do it after encoding!! */
2695 }
2696
2697 if (video->relLayerCodeTime[i] <= 0) /* no skipping */
2698 {
2699 encodeVop = 1;
2700 video->currLayer = *nLayer = i;
2701 video->relLayerCodeTime[i] += 1000;
2702
2703 /* takes care of more dropped frame than expected */
2704 extra_skip = -1;
2705 frameInc = (frameNum[i] - video->prevFrameNum[i]);
2706 extra_skip += frameInc;
2707
2708 if (extra_skip > 0)
2709 { /* update rc->Nr, rc->B, (rc->Rr)*/
2710 video->nextEncIVop -= extra_skip;
2711 video->numVopsInGOP += extra_skip;
2712 if (encParams->RC_Type != CONSTANT_Q)
2713 {
2714 RC_UpdateBuffer(video, i, extra_skip);
2715 }
2716 }
2717
2718 }
2719 /* update frame no. */
2720 video->prevFrameNum[i] = frameNum[i];
2721
2722 /* go through all lower layer */
2723 for (i = (numLayers - 2); i >= 0; i--)
2724 {
2725
2726 video->relLayerCodeTime[i] -= 1000;
2727
2728 /* find timeIncrement to be put in the bitstream */
2729 vol[i]->timeIncrement = frameTick - video->refTick[i];
2730
2731 if (video->relLayerCodeTime[i] <= 0) /* time to encode base */
2732 {
2733 /* 12/27/00 */
2734 encodeVop = 1;
2735 video->currLayer = *nLayer = i;
2736 video->relLayerCodeTime[i] +=
2737 (Int)((1000.0 * encParams->LayerFrameRate[numLayers-1]) / encParams->LayerFrameRate[i]);
2738
2739 vol[i]->moduloTimeBase = 0;
2740 while (vol[i]->timeIncrement >= vol[i]->timeIncrementResolution)
2741 {
2742 vol[i]->timeIncrement -= vol[i]->timeIncrementResolution;
2743 vol[i]->moduloTimeBase++;
2744 /* do not update refTick and modTimeRef yet, do it after encoding!! */
2745 }
2746
2747 /* takes care of more dropped frame than expected */
2748 frameNum[i] = (UInt)((frameModTime - modTimeRef) * encParams->LayerFrameRate[i] + 500) / 1000;
2749 if (video->volInitialize[i])
2750 video->prevFrameNum[i] = frameNum[i] - 1;
2751
2752 extra_skip = -1;
2753 frameInc = (frameNum[i] - video->prevFrameNum[i]);
2754 extra_skip += frameInc;
2755
2756 if (extra_skip > 0)
2757 { /* update rc->Nr, rc->B, (rc->Rr)*/
2758 if (encParams->RC_Type != CONSTANT_Q)
2759 {
2760 RC_UpdateBuffer(video, i, extra_skip);
2761 }
2762 }
2763 /* update frame no. */
2764 video->prevFrameNum[i] = frameNum[i];
2765 }
2766 }
2767
2768 #ifdef _PRINT_STAT
2769 if (encodeVop)
2770 printf(" TI: %d ", vol[*nLayer]->timeIncrement);
2771 #endif
2772
2773 return encodeVop;
2774 }
2775
2776 /* ======================================================================== */
2777 /* Function : DetermineVopType */
2778 /* Date : 06/02/2001 */
2779 /* Purpose : The name says it all. */
2780 /* In/out : */
2781 /* Return : void . */
2782 /* Modified : */
2783 /* */
2784 /* ======================================================================== */
2785
DetermineVopType(VideoEncData * video,Int currLayer)2786 void DetermineVopType(VideoEncData *video, Int currLayer)
2787 {
2788 VideoEncParams *encParams = video->encParams;
2789 // Vol *currVol = video->vol[currLayer];
2790
2791 if (encParams->IntraPeriod == 0) /* I-VOPs only */
2792 {
2793 if (video->currLayer > 0)
2794 video->currVop->predictionType = P_VOP;
2795 else
2796 {
2797 video->currVop->predictionType = I_VOP;
2798 if (video->numVopsInGOP >= 132)
2799 video->numVopsInGOP = 0;
2800 }
2801 }
2802 else if (encParams->IntraPeriod == -1) /* IPPPPP... */
2803 {
2804
2805 /* maintain frame type if previous frame is pre-skipped, 06/02/2001 */
2806 if (encParams->RC_Type == CONSTANT_Q || video->rc[currLayer]->skip_next_frame != -1)
2807 video->currVop->predictionType = P_VOP;
2808
2809 if (video->currLayer == 0)
2810 {
2811 if (/*video->numVopsInGOP>=132 || */video->volInitialize[currLayer])
2812 {
2813 video->currVop->predictionType = I_VOP;
2814 video->numVopsInGOP = 0; /* force INTRA update every 132 base frames*/
2815 video->nextEncIVop = 1;
2816 }
2817 else if (video->nextEncIVop == 0 || video->currVop->predictionType == I_VOP)
2818 {
2819 video->numVopsInGOP = 0;
2820 video->nextEncIVop = 1;
2821 }
2822 }
2823 }
2824 else /* IntraPeriod>0 : IPPPPPIPPPPPI... */
2825 {
2826
2827 /* maintain frame type if previous frame is pre-skipped, 06/02/2001 */
2828 if (encParams->RC_Type == CONSTANT_Q || video->rc[currLayer]->skip_next_frame != -1)
2829 video->currVop->predictionType = P_VOP;
2830
2831 if (currLayer == 0)
2832 {
2833 if (video->nextEncIVop <= 0 || video->currVop->predictionType == I_VOP)
2834 {
2835 video->nextEncIVop = encParams->IntraPeriod;
2836 video->currVop->predictionType = I_VOP;
2837 video->numVopsInGOP = 0;
2838 }
2839 }
2840 }
2841
2842 return ;
2843 }
2844
2845 /* ======================================================================== */
2846 /* Function : UpdateSkipNextFrame */
2847 /* Date : 06/02/2001 */
2848 /* Purpose : From rate control frame skipping decision, update timing
2849 related parameters. */
2850 /* In/out : */
2851 /* Return : Current coded layer. */
2852 /* Modified : */
2853 /* */
2854 /* ======================================================================== */
2855
UpdateSkipNextFrame(VideoEncData * video,ULong * modTime,Int * size,PV_STATUS status)2856 Int UpdateSkipNextFrame(VideoEncData *video, ULong *modTime, Int *size, PV_STATUS status)
2857 {
2858 Int currLayer = video->currLayer;
2859 Int nLayer = currLayer;
2860 VideoEncParams *encParams = video->encParams;
2861 Int numLayers = encParams->nLayers;
2862 Vol *currVol = video->vol[currLayer];
2863 Vol **vol = video->vol;
2864 Int num_skip, extra_skip;
2865 Int i;
2866 UInt newRefTick, deltaModTime;
2867 UInt temp;
2868
2869 if (encParams->RC_Type != CONSTANT_Q)
2870 {
2871 if (video->volInitialize[0] && currLayer == 0) /* always encode the first frame */
2872 {
2873 RC_ResetSkipNextFrame(video, currLayer);
2874 //return currLayer; 09/15/05
2875 }
2876 else
2877 {
2878 if (RC_GetSkipNextFrame(video, currLayer) < 0 || status == PV_END_OF_BUF) /* Skip Current Frame */
2879 {
2880
2881 #ifdef _PRINT_STAT
2882 printf("Skip current frame");
2883 #endif
2884 currVol->moduloTimeBase = currVol->prevModuloTimeBase;
2885
2886 /*********************/
2887 /* prepare to return */
2888 /*********************/
2889 *size = 0; /* Set Bitstream buffer to zero */
2890
2891 /* Determine nLayer and modTime for next encode */
2892
2893 *modTime = video->nextModTime;
2894 nLayer = -1;
2895
2896 return nLayer; /* return immediately without updating RefTick & modTimeRef */
2897 /* If I-VOP was attempted, then ensure next base is I-VOP */
2898 /*if((encParams->IntraPeriod>0) && (video->currVop->predictionType == I_VOP))
2899 video->nextEncIVop = 0; commented out by 06/05/01 */
2900
2901 }
2902 else if ((num_skip = RC_GetSkipNextFrame(video, currLayer)) > 0)
2903 {
2904
2905 #ifdef _PRINT_STAT
2906 printf("Skip next %d frames", num_skip);
2907 #endif
2908 /* to keep the Nr of enh layer the same */
2909 /* adjust relLayerCodeTime only, do not adjust layerCodeTime[numLayers-1] */
2910 extra_skip = 0;
2911 for (i = 0; i < currLayer; i++)
2912 {
2913 if (video->relLayerCodeTime[i] <= 1000)
2914 {
2915 extra_skip = 1;
2916 break;
2917 }
2918 }
2919
2920 for (i = currLayer; i < numLayers; i++)
2921 {
2922 video->relLayerCodeTime[i] += (num_skip + extra_skip) *
2923 ((Int)((1000.0 * encParams->LayerFrameRate[numLayers-1]) / encParams->LayerFrameRate[i]));
2924 }
2925 }
2926 }/* first frame */
2927 }
2928 /***** current frame is encoded, now update refTick ******/
2929
2930 video->refTick[currLayer] += vol[currLayer]->prevModuloTimeBase * vol[currLayer]->timeIncrementResolution;
2931
2932 /* Reset layerCodeTime every I-VOP to prevent overflow */
2933 if (currLayer == 0)
2934 {
2935 /* 12/12/02, fix for weird targer frame rate of 9.99 fps or 3.33 fps */
2936 if (((encParams->IntraPeriod != 0) /*&& (video->currVop->predictionType==I_VOP)*/) ||
2937 ((encParams->IntraPeriod == 0) && (video->numVopsInGOP == 0)))
2938 {
2939 newRefTick = video->refTick[0];
2940
2941 for (i = 1; i < numLayers; i++)
2942 {
2943 if (video->refTick[i] < newRefTick)
2944 newRefTick = video->refTick[i];
2945 }
2946
2947 /* check to make sure that the update is integer multiple of frame number */
2948 /* how many msec elapsed from last modTimeRef */
2949 deltaModTime = (newRefTick / vol[0]->timeIncrementResolution) * 1000;
2950
2951 for (i = numLayers - 1; i >= 0; i--)
2952 {
2953 temp = (UInt)(deltaModTime * encParams->LayerFrameRate[i]); /* 12/12/02 */
2954 if (temp % 1000)
2955 newRefTick = 0;
2956
2957 }
2958 if (newRefTick > 0)
2959 {
2960 video->modTimeRef += deltaModTime;
2961 for (i = numLayers - 1; i >= 0; i--)
2962 {
2963 video->prevFrameNum[i] -= (UInt)(deltaModTime * encParams->LayerFrameRate[i]) / 1000;
2964 video->refTick[i] -= newRefTick;
2965 }
2966 }
2967 }
2968 }
2969
2970 *modTime = video->nextModTime;
2971
2972 return nLayer;
2973 }
2974
2975
2976 #ifndef ORIGINAL_VERSION
2977
2978 /* ======================================================================== */
2979 /* Function : SetProfile_BufferSize */
2980 /* Date : 04/08/2002 */
2981 /* Purpose : Set profile and video buffer size, copied from Jim's code */
2982 /* in PVInitVideoEncoder(.), since we have different places */
2983 /* to reset profile and video buffer size */
2984 /* In/out : */
2985 /* Return : */
2986 /* Modified : */
2987 /* */
2988 /* ======================================================================== */
2989
SetProfile_BufferSize(VideoEncData * video,float delay,Int bInitialized)2990 Bool SetProfile_BufferSize(VideoEncData *video, float delay, Int bInitialized)
2991 {
2992 Int i, j, start, end;
2993 // Int BaseMBsPerSec = 0, EnhMBsPerSec = 0;
2994 Int nTotalMB = 0;
2995 Int idx, temp_w, temp_h, max = 0, max_width, max_height;
2996
2997 Int nLayers = video->encParams->nLayers; /* Number of Layers to be encoded */
2998
2999 Int total_bitrate = 0, base_bitrate;
3000 Int total_packet_size = 0, base_packet_size;
3001 Int total_MBsPerSec = 0, base_MBsPerSec;
3002 Int total_VBV_size = 0, base_VBV_size, enhance_VBV_size = 0;
3003 float total_framerate, base_framerate;
3004 float upper_bound_ratio;
3005 Int bFound = 0;
3006 Int k = 0, width16, height16, index;
3007 Int lowest_level;
3008
3009 #define MIN_BUFF 16000 /* 16k minimum buffer size */
3010 #define BUFF_CONST 2.0 /* 2000ms */
3011 #define UPPER_BOUND_RATIO 8.54 /* upper_bound = 1.4*(1.1+bound/10)*bitrate/framerate */
3012
3013 #define QCIF_WIDTH 176
3014 #define QCIF_HEIGHT 144
3015
3016 index = video->encParams->profile_table_index;
3017
3018 /* Calculate "nTotalMB" */
3019 /* Find the maximum width*height for memory allocation of the VOPs */
3020 for (idx = 0; idx < nLayers; idx++)
3021 {
3022 temp_w = video->encParams->LayerWidth[idx];
3023 temp_h = video->encParams->LayerHeight[idx];
3024
3025 if ((temp_w*temp_h) > max)
3026 {
3027 max = temp_w * temp_h;
3028 max_width = temp_w;
3029 max_height = temp_h;
3030 nTotalMB = ((max_width + 15) >> 4) * ((max_height + 15) >> 4);
3031 }
3032 }
3033 upper_bound_ratio = (video->encParams->RC_Type == CBR_LOWDELAY ? (float)5.0 : (float)UPPER_BOUND_RATIO);
3034
3035
3036 /* Get the basic information: bitrate, packet_size, MBs/s and VBV_size */
3037 base_bitrate = video->encParams->LayerBitRate[0];
3038 if (video->encParams->LayerMaxBitRate[0] != 0) /* video->encParams->LayerMaxBitRate[0] == 0 means it has not been set */
3039 {
3040 base_bitrate = PV_MAX(base_bitrate, video->encParams->LayerMaxBitRate[0]);
3041 }
3042 else /* if the max is not set, set it to the specified profile/level */
3043 {
3044 video->encParams->LayerMaxBitRate[0] = profile_level_max_bitrate[index];
3045 }
3046
3047 base_framerate = video->encParams->LayerFrameRate[0];
3048 if (video->encParams->LayerMaxFrameRate[0] != 0)
3049 {
3050 base_framerate = PV_MAX(base_framerate, video->encParams->LayerMaxFrameRate[0]);
3051 }
3052 else /* if the max is not set, set it to the specified profile/level */
3053 {
3054 video->encParams->LayerMaxFrameRate[0] = (float)profile_level_max_mbsPerSec[index] / nTotalMB;
3055 }
3056
3057 base_packet_size = video->encParams->ResyncPacketsize;
3058 base_MBsPerSec = (Int)(base_framerate * nTotalMB);
3059 base_VBV_size = PV_MAX((Int)(base_bitrate * delay),
3060 (Int)(upper_bound_ratio * base_bitrate / base_framerate));
3061 base_VBV_size = PV_MAX(base_VBV_size, MIN_BUFF);
3062
3063 /* if the buffer is larger than maximum buffer size, we'll clip it */
3064 if (base_VBV_size > profile_level_max_VBV_size[5])
3065 base_VBV_size = profile_level_max_VBV_size[5];
3066
3067
3068 /* Check if the buffer exceeds the maximum buffer size given the maximum profile and level */
3069 if (nLayers == 1 && base_VBV_size > profile_level_max_VBV_size[index])
3070 return FALSE;
3071
3072
3073 if (nLayers == 2)
3074 {
3075 total_bitrate = video->encParams->LayerBitRate[1];
3076 if (video->encParams->LayerMaxBitRate[1] != 0)
3077 {
3078 total_bitrate = PV_MIN(total_bitrate, video->encParams->LayerMaxBitRate[1]);
3079 }
3080 else /* if the max is not set, set it to the specified profile/level */
3081 {
3082 video->encParams->LayerMaxBitRate[1] = scalable_profile_level_max_bitrate[index];
3083 }
3084
3085 total_framerate = video->encParams->LayerFrameRate[1];
3086 if (video->encParams->LayerMaxFrameRate[1] != 0)
3087 {
3088 total_framerate = PV_MIN(total_framerate, video->encParams->LayerMaxFrameRate[1]);
3089 }
3090 else /* if the max is not set, set it to the specified profile/level */
3091 {
3092 video->encParams->LayerMaxFrameRate[1] = (float)scalable_profile_level_max_mbsPerSec[index] / nTotalMB;
3093 }
3094
3095 total_packet_size = video->encParams->ResyncPacketsize;
3096 total_MBsPerSec = (Int)(total_framerate * nTotalMB);
3097
3098 enhance_VBV_size = PV_MAX((Int)((total_bitrate - base_bitrate) * delay),
3099 (Int)(upper_bound_ratio * (total_bitrate - base_bitrate) / (total_framerate - base_framerate)));
3100 enhance_VBV_size = PV_MAX(enhance_VBV_size, MIN_BUFF);
3101
3102 total_VBV_size = base_VBV_size + enhance_VBV_size;
3103
3104 /* if the buffer is larger than maximum buffer size, we'll clip it */
3105 if (total_VBV_size > scalable_profile_level_max_VBV_size[6])
3106 {
3107 total_VBV_size = scalable_profile_level_max_VBV_size[6];
3108 enhance_VBV_size = total_VBV_size - base_VBV_size;
3109 }
3110
3111 /* Check if the buffer exceeds the maximum buffer size given the maximum profile and level */
3112 if (total_VBV_size > scalable_profile_level_max_VBV_size[index])
3113 return FALSE;
3114 }
3115
3116
3117 if (!bInitialized) /* Has been initialized --> profile @ level has been figured out! */
3118 {
3119 video->encParams->BufferSize[0] = base_VBV_size;
3120 if (nLayers > 1)
3121 video->encParams->BufferSize[1] = enhance_VBV_size;
3122
3123 return PV_TRUE;
3124 }
3125
3126
3127 /* Profile @ level determination */
3128 if (nLayers == 1)
3129 {
3130 /* BASE ONLY : Simple Profile(SP) Or Core Profile(CP) */
3131 if (base_bitrate > profile_level_max_bitrate[index] ||
3132 base_packet_size > profile_level_max_packet_size[index] ||
3133 base_MBsPerSec > profile_level_max_mbsPerSec[index] ||
3134 base_VBV_size > profile_level_max_VBV_size[index])
3135
3136 return PV_FALSE; /* Beyond the bound of Core Profile @ Level2 */
3137
3138 /* For H263/Short header, determine k*16384 */
3139 width16 = ((video->encParams->LayerWidth[0] + 15) >> 4) << 4;
3140 height16 = ((video->encParams->LayerHeight[0] + 15) >> 4) << 4;
3141 if (video->encParams->H263_Enabled)
3142 {
3143 k = 4;
3144 if (width16 == 2*QCIF_WIDTH && height16 == 2*QCIF_HEIGHT) /* CIF */
3145 k = 16;
3146
3147 else if (width16 == 4*QCIF_WIDTH && height16 == 4*QCIF_HEIGHT) /* 4CIF */
3148 k = 32;
3149
3150 else if (width16 == 8*QCIF_WIDTH && height16 == 8*QCIF_HEIGHT) /* 16CIF */
3151 k = 64;
3152
3153 video->encParams->maxFrameSize = k * 16384;
3154
3155 /* Make sure the buffer size is limited to the top profile and level: the Core profile and level 2 */
3156 if (base_VBV_size > (Int)(k*16384 + 4*(float)profile_level_max_bitrate[5]*1001.0 / 30000.0))
3157 base_VBV_size = (Int)(k * 16384 + 4 * (float)profile_level_max_bitrate[5] * 1001.0 / 30000.0);
3158
3159 if (base_VBV_size > (Int)(k*16384 + 4*(float)profile_level_max_bitrate[index]*1001.0 / 30000.0))
3160 return PV_FALSE;
3161 }
3162
3163 /* Search the appropriate profile@level index */
3164 if (!video->encParams->H263_Enabled &&
3165 (video->encParams->IntraDCVlcThr != 0 || video->encParams->SearchRange > 16))
3166 {
3167 lowest_level = 1; /* cannot allow SPL0 */
3168 }
3169 else
3170 {
3171 lowest_level = 0; /* SPL0 */
3172 }
3173
3174 for (i = lowest_level; i <= index; i++)
3175 {
3176 if (i != 4 && /* skip Core Profile@Level1 because the parameters in it are smaller than those in Simple Profile@Level3 */
3177 base_bitrate <= profile_level_max_bitrate[i] &&
3178 base_packet_size <= profile_level_max_packet_size[i] &&
3179 base_MBsPerSec <= profile_level_max_mbsPerSec[i] &&
3180 base_VBV_size <= (video->encParams->H263_Enabled ? (Int)(k*16384 + 4*(float)profile_level_max_bitrate[i]*1001.0 / 30000.0) :
3181 profile_level_max_VBV_size[i]))
3182 break;
3183 }
3184 if (i > index) return PV_FALSE; /* Nothing found!! */
3185
3186 /* Found out the actual profile @ level : index "i" */
3187 if (i == 0)
3188 {
3189 /* For Simple Profile @ Level 0, we need to do one more check: image size <= QCIF */
3190 if (width16 > QCIF_WIDTH || height16 > QCIF_HEIGHT)
3191 i = 1; /* image size > QCIF, then set SP level1 */
3192 }
3193
3194 video->encParams->ProfileLevel[0] = profile_level_code[i];
3195 video->encParams->BufferSize[0] = base_VBV_size;
3196
3197 if (video->encParams->LayerMaxBitRate[0] == 0)
3198 video->encParams->LayerMaxBitRate[0] = profile_level_max_bitrate[i];
3199
3200 if (video->encParams->LayerMaxFrameRate[0] == 0)
3201 video->encParams->LayerMaxFrameRate[0] = PV_MIN(30, (float)profile_level_max_mbsPerSec[i] / nTotalMB);
3202
3203 /* For H263/Short header, one special constraint for VBV buffer size */
3204 if (video->encParams->H263_Enabled)
3205 video->encParams->BufferSize[0] = (Int)(k * 16384 + 4 * (float)profile_level_max_bitrate[i] * 1001.0 / 30000.0);
3206
3207 }
3208 else
3209 {
3210 /* SCALABALE MODE: Simple Scalable Profile(SSP) Or Core Scalable Profile(CSP) */
3211
3212 if (total_bitrate > scalable_profile_level_max_bitrate[index] ||
3213 total_packet_size > scalable_profile_level_max_packet_size[index] ||
3214 total_MBsPerSec > scalable_profile_level_max_mbsPerSec[index] ||
3215 total_VBV_size > scalable_profile_level_max_VBV_size[index])
3216
3217 return PV_FALSE; /* Beyond given profile and level */
3218
3219 /* One-time check: Simple Scalable Profile or Core Scalable Profile */
3220 if (total_bitrate <= scalable_profile_level_max_bitrate[2] &&
3221 total_packet_size <= scalable_profile_level_max_packet_size[2] &&
3222 total_MBsPerSec <= scalable_profile_level_max_mbsPerSec[2] &&
3223 total_VBV_size <= scalable_profile_level_max_VBV_size[2])
3224
3225 {
3226 start = 0;
3227 end = index;
3228 }
3229
3230 else
3231 {
3232 start = 4;
3233 end = index;
3234 }
3235
3236
3237 /* Search the scalable profile */
3238 for (i = start; i <= end; i++)
3239 {
3240 if (total_bitrate <= scalable_profile_level_max_bitrate[i] &&
3241 total_packet_size <= scalable_profile_level_max_packet_size[i] &&
3242 total_MBsPerSec <= scalable_profile_level_max_mbsPerSec[i] &&
3243 total_VBV_size <= scalable_profile_level_max_VBV_size[i])
3244
3245 break;
3246 }
3247 if (i > end) return PV_FALSE;
3248
3249 /* Search the base profile */
3250 if (i == 0)
3251 {
3252 j = 0;
3253 bFound = 1;
3254 }
3255 else bFound = 0;
3256
3257 for (j = start; !bFound && j <= i; j++)
3258 {
3259 if (base_bitrate <= profile_level_max_bitrate[j] &&
3260 base_packet_size <= profile_level_max_packet_size[j] &&
3261 base_MBsPerSec <= profile_level_max_mbsPerSec[j] &&
3262 base_VBV_size <= profile_level_max_VBV_size[j])
3263
3264 {
3265 bFound = 1;
3266 break;
3267 }
3268 }
3269
3270 if (!bFound) // && start == 4)
3271 return PV_FALSE; /* mis-match in the profiles between base layer and enhancement layer */
3272
3273 /* j for base layer, i for enhancement layer */
3274 video->encParams->ProfileLevel[0] = profile_level_code[j];
3275 video->encParams->ProfileLevel[1] = scalable_profile_level_code[i];
3276 video->encParams->BufferSize[0] = base_VBV_size;
3277 video->encParams->BufferSize[1] = enhance_VBV_size;
3278
3279 if (video->encParams->LayerMaxBitRate[0] == 0)
3280 video->encParams->LayerMaxBitRate[0] = profile_level_max_bitrate[j];
3281
3282 if (video->encParams->LayerMaxBitRate[1] == 0)
3283 video->encParams->LayerMaxBitRate[1] = scalable_profile_level_max_bitrate[i];
3284
3285 if (video->encParams->LayerMaxFrameRate[0] == 0)
3286 video->encParams->LayerMaxFrameRate[0] = PV_MIN(30, (float)profile_level_max_mbsPerSec[j] / nTotalMB);
3287
3288 if (video->encParams->LayerMaxFrameRate[1] == 0)
3289 video->encParams->LayerMaxFrameRate[1] = PV_MIN(30, (float)scalable_profile_level_max_mbsPerSec[i] / nTotalMB);
3290
3291
3292 } /* end of: if(nLayers == 1) */
3293
3294
3295 if (!video->encParams->H263_Enabled && (video->encParams->ProfileLevel[0] == 0x08)) /* SPL0 restriction*/
3296 {
3297 /* PV only allow frame-based rate control, no QP change from one MB to another
3298 if(video->encParams->ACDCPrediction == TRUE && MB-based rate control)
3299 return PV_FALSE */
3300 }
3301
3302 return PV_TRUE;
3303 }
3304
3305 #endif /* #ifndef ORIGINAL_VERSION */
3306