-
Notifications
You must be signed in to change notification settings - Fork 165
/
mpeg2vaenc.c
1560 lines (1296 loc) · 50.6 KB
/
mpeg2vaenc.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* Copyright (c) 2012 Intel Corporation. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* Simple MPEG-2 encoder based on libVA.
*
*/
#include <getopt.h>
#include <unistd.h>
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#include <sys/types.h>
#include <fcntl.h>
#include <time.h>
#include <math.h>
#include <pthread.h>
#include <va/va.h>
#include <va/va_enc_mpeg2.h>
#include "va_display.h"
#define START_CODE_PICUTRE 0x00000100
#define START_CODE_SLICE 0x00000101
#define START_CODE_USER 0x000001B2
#define START_CODE_SEQ 0x000001B3
#define START_CODE_EXT 0x000001B5
#define START_CODE_GOP 0x000001B8
#define CHROMA_FORMAT_RESERVED 0
#define CHROMA_FORMAT_420 1
#define CHROMA_FORMAT_422 2
#define CHROMA_FORMAT_444 3
#define MAX_SLICES 128
enum {
MPEG2_MODE_I = 0,
MPEG2_MODE_IP,
MPEG2_MODE_IPB,
};
enum {
MPEG2_LEVEL_LOW = 0,
MPEG2_LEVEL_MAIN,
MPEG2_LEVEL_HIGH,
};
#define CHECK_VASTATUS(va_status, func) \
if (va_status != VA_STATUS_SUCCESS) { \
fprintf(stderr, "%s:%s (%d) failed, exit\n", __func__, func, __LINE__); \
exit(1); \
}
#define CHECK_CONDITION(cond) \
if(!(cond)) \
{ \
fprintf(stderr, "Unexpected condition: %s:%d\n", __func__, __LINE__); \
exit(1); \
}
static VAProfile mpeg2_va_profiles[] = {
VAProfileMPEG2Simple,
VAProfileMPEG2Main
};
static struct _mpeg2_sampling_density {
int samplers_per_line;
int line_per_frame;
int frame_per_sec;
} mpeg2_upper_samplings[2][3] = {
{ { 0, 0, 0 },
{ 720, 576, 30 },
{ 0, 0, 0 },
},
{ { 352, 288, 30 },
{ 720, 576, 30 },
{ 1920, 1152, 60 },
}
};
struct mpeg2enc_context {
/* args */
int rate_control_mode;
int fps;
int mode; /* 0:I, 1:I/P, 2:I/P/B */
VAProfile profile;
int level;
int width;
int height;
int frame_size;
int num_pictures;
int qp;
FILE *ifp;
FILE *ofp;
unsigned char *frame_data_buffer;
int intra_period;
int ip_period;
int bit_rate; /* in kbps */
VAEncPictureType next_type;
int next_display_order;
int next_bframes;
int new_sequence;
int new_gop_header;
int gop_header_in_display_order;
/* VA resource */
VADisplay va_dpy;
VAEncSequenceParameterBufferMPEG2 seq_param;
VAEncPictureParameterBufferMPEG2 pic_param;
VAEncSliceParameterBufferMPEG2 slice_param[MAX_SLICES];
VAContextID context_id;
VAConfigID config_id;
VABufferID seq_param_buf_id; /* Sequence level parameter */
VABufferID pic_param_buf_id; /* Picture level parameter */
VABufferID slice_param_buf_id[MAX_SLICES]; /* Slice level parameter, multil slices */
VABufferID codedbuf_buf_id; /* Output buffer, compressed data */
VABufferID packed_seq_header_param_buf_id;
VABufferID packed_seq_buf_id;
VABufferID packed_pic_header_param_buf_id;
VABufferID packed_pic_buf_id;
int num_slice_groups;
int codedbuf_i_size;
int codedbuf_pb_size;
/* thread */
pthread_t upload_thread_id;
int upload_thread_value;
int current_input_surface;
int current_upload_surface;
};
/*
* mpeg2enc helpers
*/
#define BITSTREAM_ALLOCATE_STEPPING 4096
struct __bitstream {
unsigned int *buffer;
int bit_offset;
int max_size_in_dword;
};
typedef struct __bitstream bitstream;
static unsigned int
swap32(unsigned int val)
{
unsigned char *pval = (unsigned char *)&val;
return ((pval[0] << 24) |
(pval[1] << 16) |
(pval[2] << 8) |
(pval[3] << 0));
}
static void
bitstream_start(bitstream *bs)
{
bs->max_size_in_dword = BITSTREAM_ALLOCATE_STEPPING;
bs->buffer = calloc(bs->max_size_in_dword * sizeof(int), 1);
assert(bs->buffer);
bs->bit_offset = 0;
}
static void
bitstream_end(bitstream *bs)
{
int pos = (bs->bit_offset >> 5);
int bit_offset = (bs->bit_offset & 0x1f);
int bit_left = 32 - bit_offset;
if (bit_offset) {
bs->buffer[pos] = swap32((bs->buffer[pos] << bit_left));
}
}
static void
bitstream_put_ui(bitstream *bs, unsigned int val, int size_in_bits)
{
int pos = (bs->bit_offset >> 5);
int bit_offset = (bs->bit_offset & 0x1f);
int bit_left = 32 - bit_offset;
if (!size_in_bits)
return;
if (size_in_bits < 32)
val &= ((1 << size_in_bits) - 1);
bs->bit_offset += size_in_bits;
if (bit_left > size_in_bits) {
bs->buffer[pos] = (bs->buffer[pos] << size_in_bits | val);
} else {
size_in_bits -= bit_left;
bs->buffer[pos] = (bs->buffer[pos] << bit_left) | (val >> size_in_bits);
bs->buffer[pos] = swap32(bs->buffer[pos]);
if (pos + 1 == bs->max_size_in_dword) {
bs->max_size_in_dword += BITSTREAM_ALLOCATE_STEPPING;
bs->buffer = realloc(bs->buffer, bs->max_size_in_dword * sizeof(unsigned int));
assert(bs->buffer);
}
bs->buffer[pos + 1] = val;
}
}
static void
bitstream_byte_aligning(bitstream *bs, int bit)
{
int bit_offset = (bs->bit_offset & 0x7);
int bit_left = 8 - bit_offset;
int new_val;
if (!bit_offset)
return;
assert(bit == 0 || bit == 1);
if (bit)
new_val = (1 << bit_left) - 1;
else
new_val = 0;
bitstream_put_ui(bs, new_val, bit_left);
}
static struct mpeg2_frame_rate {
int code;
float value;
} frame_rate_tab[] = {
{1, 23.976},
{2, 24.0},
{3, 25.0},
{4, 29.97},
{5, 30},
{6, 50},
{7, 59.94},
{8, 60}
};
static int
find_frame_rate_code(const VAEncSequenceParameterBufferMPEG2 *seq_param)
{
unsigned int delta = -1;
int code = 1, i;
float frame_rate_value = seq_param->frame_rate *
(seq_param->sequence_extension.bits.frame_rate_extension_d + 1) /
(seq_param->sequence_extension.bits.frame_rate_extension_n + 1);
for (i = 0; i < sizeof(frame_rate_tab) / sizeof(frame_rate_tab[0]); i++) {
if (fabsf(1000 * frame_rate_tab[i].value - 1000 * frame_rate_value) < delta) {
code = frame_rate_tab[i].code;
delta = fabsf(1000 * frame_rate_tab[i].value - 1000 * frame_rate_value);
}
}
return code;
}
static void
sps_rbsp(struct mpeg2enc_context *ctx,
const VAEncSequenceParameterBufferMPEG2 *seq_param,
bitstream *bs)
{
int frame_rate_code = find_frame_rate_code(seq_param);
if (ctx->new_sequence) {
bitstream_put_ui(bs, START_CODE_SEQ, 32);
bitstream_put_ui(bs, seq_param->picture_width, 12);
bitstream_put_ui(bs, seq_param->picture_height, 12);
bitstream_put_ui(bs, seq_param->aspect_ratio_information, 4);
bitstream_put_ui(bs, frame_rate_code, 4); /* frame_rate_code */
bitstream_put_ui(bs, (seq_param->bits_per_second + 399) / 400, 18); /* the low 18 bits of bit_rate */
bitstream_put_ui(bs, 1, 1); /* marker_bit */
bitstream_put_ui(bs, seq_param->vbv_buffer_size, 10);
bitstream_put_ui(bs, 0, 1); /* constraint_parameter_flag, always 0 for MPEG-2 */
bitstream_put_ui(bs, 0, 1); /* load_intra_quantiser_matrix */
bitstream_put_ui(bs, 0, 1); /* load_non_intra_quantiser_matrix */
bitstream_byte_aligning(bs, 0);
bitstream_put_ui(bs, START_CODE_EXT, 32);
bitstream_put_ui(bs, 1, 4); /* sequence_extension id */
bitstream_put_ui(bs, seq_param->sequence_extension.bits.profile_and_level_indication, 8);
bitstream_put_ui(bs, seq_param->sequence_extension.bits.progressive_sequence, 1);
bitstream_put_ui(bs, seq_param->sequence_extension.bits.chroma_format, 2);
bitstream_put_ui(bs, seq_param->picture_width >> 12, 2);
bitstream_put_ui(bs, seq_param->picture_height >> 12, 2);
bitstream_put_ui(bs, ((seq_param->bits_per_second + 399) / 400) >> 18, 12); /* bit_rate_extension */
bitstream_put_ui(bs, 1, 1); /* marker_bit */
bitstream_put_ui(bs, seq_param->vbv_buffer_size >> 10, 8);
bitstream_put_ui(bs, seq_param->sequence_extension.bits.low_delay, 1);
bitstream_put_ui(bs, seq_param->sequence_extension.bits.frame_rate_extension_n, 2);
bitstream_put_ui(bs, seq_param->sequence_extension.bits.frame_rate_extension_d, 5);
bitstream_byte_aligning(bs, 0);
}
if (ctx->new_gop_header) {
bitstream_put_ui(bs, START_CODE_GOP, 32);
bitstream_put_ui(bs, seq_param->gop_header.bits.time_code, 25);
bitstream_put_ui(bs, seq_param->gop_header.bits.closed_gop, 1);
bitstream_put_ui(bs, seq_param->gop_header.bits.broken_link, 1);
bitstream_byte_aligning(bs, 0);
}
}
static void
pps_rbsp(const VAEncSequenceParameterBufferMPEG2 *seq_param,
const VAEncPictureParameterBufferMPEG2 *pic_param,
bitstream *bs)
{
int chroma_420_type;
if (seq_param->sequence_extension.bits.chroma_format == CHROMA_FORMAT_420)
chroma_420_type = pic_param->picture_coding_extension.bits.progressive_frame;
else
chroma_420_type = 0;
bitstream_put_ui(bs, START_CODE_PICUTRE, 32);
bitstream_put_ui(bs, pic_param->temporal_reference, 10);
bitstream_put_ui(bs,
pic_param->picture_type == VAEncPictureTypeIntra ? 1 :
pic_param->picture_type == VAEncPictureTypePredictive ? 2 : 3,
3);
bitstream_put_ui(bs, 0xFFFF, 16); /* vbv_delay, always 0xFFFF */
if (pic_param->picture_type == VAEncPictureTypePredictive ||
pic_param->picture_type == VAEncPictureTypeBidirectional) {
bitstream_put_ui(bs, 0, 1); /* full_pel_forward_vector, always 0 for MPEG-2 */
bitstream_put_ui(bs, 7, 3); /* forward_f_code, always 7 for MPEG-2 */
}
if (pic_param->picture_type == VAEncPictureTypeBidirectional) {
bitstream_put_ui(bs, 0, 1); /* full_pel_backward_vector, always 0 for MPEG-2 */
bitstream_put_ui(bs, 7, 3); /* backward_f_code, always 7 for MPEG-2 */
}
bitstream_put_ui(bs, 0, 1); /* extra_bit_picture, 0 */
bitstream_byte_aligning(bs, 0);
bitstream_put_ui(bs, START_CODE_EXT, 32);
bitstream_put_ui(bs, 8, 4); /* Picture Coding Extension ID: 8 */
bitstream_put_ui(bs, pic_param->f_code[0][0], 4);
bitstream_put_ui(bs, pic_param->f_code[0][1], 4);
bitstream_put_ui(bs, pic_param->f_code[1][0], 4);
bitstream_put_ui(bs, pic_param->f_code[1][1], 4);
bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.intra_dc_precision, 2);
bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.picture_structure, 2);
bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.top_field_first, 1);
bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.frame_pred_frame_dct, 1);
bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.concealment_motion_vectors, 1);
bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.q_scale_type, 1);
bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.intra_vlc_format, 1);
bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.alternate_scan, 1);
bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.repeat_first_field, 1);
bitstream_put_ui(bs, chroma_420_type, 1);
bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.progressive_frame, 1);
bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.composite_display_flag, 1);
bitstream_byte_aligning(bs, 0);
}
static int
build_packed_pic_buffer(const VAEncSequenceParameterBufferMPEG2 *seq_param,
const VAEncPictureParameterBufferMPEG2 *pic_param,
unsigned char **header_buffer)
{
bitstream bs;
bitstream_start(&bs);
pps_rbsp(seq_param, pic_param, &bs);
bitstream_end(&bs);
*header_buffer = (unsigned char *)bs.buffer;
return bs.bit_offset;
}
static int
build_packed_seq_buffer(struct mpeg2enc_context *ctx,
const VAEncSequenceParameterBufferMPEG2 *seq_param,
unsigned char **header_buffer)
{
bitstream bs;
bitstream_start(&bs);
sps_rbsp(ctx, seq_param, &bs);
bitstream_end(&bs);
*header_buffer = (unsigned char *)bs.buffer;
return bs.bit_offset;
}
/*
* mpeg2enc
*/
#define SID_INPUT_PICTURE_0 0
#define SID_INPUT_PICTURE_1 1
#define SID_REFERENCE_PICTURE_L0 2
#define SID_REFERENCE_PICTURE_L1 3
#define SID_RECON_PICTURE 4
#define SID_NUMBER SID_RECON_PICTURE + 1
static VASurfaceID surface_ids[SID_NUMBER];
/*
* upload thread function
*/
static void *
upload_yuv_to_surface(void *data)
{
struct mpeg2enc_context *ctx = data;
VAImage surface_image;
VAStatus va_status;
void *surface_p = NULL;
unsigned char *y_src, *u_src, *v_src;
unsigned char *y_dst, *u_dst, *v_dst;
int y_size = ctx->width * ctx->height;
int u_size = (ctx->width >> 1) * (ctx->height >> 1);
int row, col;
size_t n_items;
do {
n_items = fread(ctx->frame_data_buffer, ctx->frame_size, 1, ctx->ifp);
} while (n_items != 1);
va_status = vaDeriveImage(ctx->va_dpy, surface_ids[ctx->current_upload_surface], &surface_image);
CHECK_VASTATUS(va_status, "vaDeriveImage");
vaMapBuffer(ctx->va_dpy, surface_image.buf, &surface_p);
assert(VA_STATUS_SUCCESS == va_status);
y_src = ctx->frame_data_buffer;
u_src = ctx->frame_data_buffer + y_size; /* UV offset for NV12 */
v_src = ctx->frame_data_buffer + y_size + u_size;
y_dst = (unsigned char *)surface_p + surface_image.offsets[0];
u_dst = (unsigned char *)surface_p + surface_image.offsets[1]; /* UV offset for NV12 */
v_dst = (unsigned char *)surface_p + surface_image.offsets[2];
/* Y plane */
for (row = 0; row < surface_image.height; row++) {
memcpy(y_dst, y_src, surface_image.width);
y_dst += surface_image.pitches[0];
y_src += ctx->width;
}
if (surface_image.format.fourcc == VA_FOURCC_NV12) { /* UV plane */
for (row = 0; row < surface_image.height / 2; row++) {
for (col = 0; col < surface_image.width / 2; col++) {
u_dst[col * 2] = u_src[col];
u_dst[col * 2 + 1] = v_src[col];
}
u_dst += surface_image.pitches[1];
u_src += (ctx->width / 2);
v_src += (ctx->width / 2);
}
} else {
for (row = 0; row < surface_image.height / 2; row++) {
for (col = 0; col < surface_image.width / 2; col++) {
u_dst[col] = u_src[col];
v_dst[col] = v_src[col];
}
u_dst += surface_image.pitches[1];
v_dst += surface_image.pitches[2];
u_src += (ctx->width / 2);
v_src += (ctx->width / 2);
}
}
vaUnmapBuffer(ctx->va_dpy, surface_image.buf);
vaDestroyImage(ctx->va_dpy, surface_image.image_id);
return NULL;
}
static void
mpeg2enc_exit(struct mpeg2enc_context *ctx, int exit_code)
{
if (ctx->frame_data_buffer) {
free(ctx->frame_data_buffer);
ctx->frame_data_buffer = NULL;
}
if (ctx->ifp) {
fclose(ctx->ifp);
ctx->ifp = NULL;
}
if (ctx->ofp) {
fclose(ctx->ofp);
ctx->ofp = NULL;
}
exit(exit_code);
}
static void
usage(char *program)
{
fprintf(stderr, "Usage: %s --help\n", program);
fprintf(stderr, "\t--help print this message\n");
fprintf(stderr, "Usage: %s <width> <height> <ifile> <ofile> [options]\n", program);
fprintf(stderr, "\t<width> specifies the frame width\n");
fprintf(stderr, "\t<height> specifies the frame height\n");
fprintf(stderr, "\t<ifile> specifies the I420/IYUV YUV file\n");
fprintf(stderr, "\t<ofile> specifies the encoded MPEG-2 file\n");
fprintf(stderr, "where options include:\n");
fprintf(stderr, "\t--cqp <QP> const qp mode with specified <QP>\n");
fprintf(stderr, "\t--fps <FPS> specify the frame rate\n");
fprintf(stderr, "\t--mode <MODE> specify the mode 0 (I), 1 (I/P) and 2 (I/P/B)\n");
fprintf(stderr, "\t--profile <PROFILE> specify the profile 0(Simple), or 1(Main, default)\n");
fprintf(stderr, "\t--level <LEVEL> specify the level 0(Low), 1(Main, default) or 2(High)\n");
}
void
mpeg2_profile_level(struct mpeg2enc_context *ctx,
int profile,
int level)
{
int l = 2, p;
for (p = profile; p < 2; p++) {
for (l = level; l < 3; l++) {
if (ctx->width <= mpeg2_upper_samplings[p][l].samplers_per_line &&
ctx->height <= mpeg2_upper_samplings[p][l].line_per_frame &&
ctx->fps <= mpeg2_upper_samplings[p][l].frame_per_sec) {
goto __find;
break;
}
}
}
if (p == 2) {
fprintf(stderr, "Warning: can't find a proper profile and level for the specified width/height/fps\n");
p = 1;
l = 2;
}
__find:
ctx->profile = mpeg2_va_profiles[p];
ctx->level = l;
}
static void
parse_args(struct mpeg2enc_context *ctx, int argc, char **argv)
{
int c, tmp;
int option_index = 0;
long file_size;
int profile = 1, level = 1;
static struct option long_options[] = {
{"help", no_argument, 0, 'h'},
{"cqp", required_argument, 0, 'c'},
{"fps", required_argument, 0, 'f'},
{"mode", required_argument, 0, 'm'},
{"profile", required_argument, 0, 'p'},
{"level", required_argument, 0, 'l'},
{ NULL, 0, NULL, 0 }
};
if ((argc == 2 && strcmp(argv[1], "--help") == 0) ||
(argc < 5))
goto print_usage;
ctx->width = atoi(argv[1]);
ctx->height = atoi(argv[2]);
if (ctx->width <= 0 || ctx->height <= 0) {
fprintf(stderr, "<width> and <height> must be greater than 0\n");
goto err_exit;
}
ctx->ifp = fopen(argv[3], "rb");
if (ctx->ifp == NULL) {
fprintf(stderr, "Can't open the input file\n");
goto err_exit;
}
fseek(ctx->ifp, 0l, SEEK_END);
file_size = ftell(ctx->ifp);
ctx->frame_size = ctx->width * ctx->height * 3 / 2;
if ((file_size < ctx->frame_size) ||
(file_size % ctx->frame_size)) {
fprintf(stderr, "The input file size %ld isn't a multiple of the frame size %d\n", file_size, ctx->frame_size);
goto err_exit;
}
ctx->num_pictures = file_size / ctx->frame_size;
fseek(ctx->ifp, 0l, SEEK_SET);
ctx->ofp = fopen(argv[4], "wb");
if (ctx->ofp == NULL) {
fprintf(stderr, "Can't create the output file\n");
goto err_exit;
}
opterr = 0;
ctx->fps = 30;
ctx->qp = 8;
ctx->rate_control_mode = VA_RC_CQP;
ctx->mode = MPEG2_MODE_IP;
ctx->profile = VAProfileMPEG2Main;
ctx->level = MPEG2_LEVEL_MAIN;
optind = 5;
while ((c = getopt_long(argc, argv,
"",
long_options,
&option_index)) != -1) {
switch (c) {
case 'c':
tmp = atoi(optarg);
/* only support q_scale_type = 0 */
if (tmp > 62 || tmp < 2) {
fprintf(stderr, "Warning: QP must be in [2, 62]\n");
if (tmp > 62)
tmp = 62;
if (tmp < 2)
tmp = 2;
}
ctx->qp = tmp & 0xFE;
ctx->rate_control_mode = VA_RC_CQP;
break;
case 'f':
tmp = atoi(optarg);
if (tmp <= 0)
fprintf(stderr, "Warning: FPS must be greater than 0\n");
else
ctx->fps = tmp;
ctx->rate_control_mode = VA_RC_CBR;
break;
case 'm':
tmp = atoi(optarg);
if (tmp < MPEG2_MODE_I || tmp > MPEG2_MODE_IPB)
fprintf(stderr, "Waning: MODE must be 0, 1, or 2\n");
else
ctx->mode = tmp;
break;
case 'p':
tmp = atoi(optarg);
if (tmp < 0 || tmp > 1)
fprintf(stderr, "Waning: PROFILE must be 0 or 1\n");
else
profile = tmp;
break;
case 'l':
tmp = atoi(optarg);
if (tmp < MPEG2_LEVEL_LOW || tmp > MPEG2_LEVEL_HIGH)
fprintf(stderr, "Waning: LEVEL must be 0, 1, or 2\n");
else
level = tmp;
break;
case '?':
fprintf(stderr, "Error: unkown command options\n");
case 'h':
goto print_usage;
}
}
mpeg2_profile_level(ctx, profile, level);
return;
print_usage:
usage(argv[0]);
err_exit:
mpeg2enc_exit(ctx, 1);
}
/*
* init
*/
void
mpeg2enc_init_sequence_parameter(struct mpeg2enc_context *ctx,
VAEncSequenceParameterBufferMPEG2 *seq_param)
{
int profile = 4, level = 8;
switch (ctx->profile) {
case VAProfileMPEG2Simple:
profile = 5;
break;
case VAProfileMPEG2Main:
profile = 4;
break;
default:
assert(0);
break;
}
switch (ctx->level) {
case MPEG2_LEVEL_LOW:
level = 10;
break;
case MPEG2_LEVEL_MAIN:
level = 8;
break;
case MPEG2_LEVEL_HIGH:
level = 4;
break;
default:
assert(0);
break;
}
seq_param->intra_period = ctx->intra_period;
seq_param->ip_period = ctx->ip_period; /* FIXME: ??? */
seq_param->picture_width = ctx->width;
seq_param->picture_height = ctx->height;
if (ctx->bit_rate > 0)
seq_param->bits_per_second = 1024 * ctx->bit_rate; /* use kbps as input */
else
seq_param->bits_per_second = 0x3FFFF * 400;
seq_param->frame_rate = ctx->fps;
seq_param->aspect_ratio_information = 1;
seq_param->vbv_buffer_size = 3; /* B = 16 * 1024 * vbv_buffer_size */
seq_param->sequence_extension.bits.profile_and_level_indication = profile << 4 | level;
seq_param->sequence_extension.bits.progressive_sequence = 1; /* progressive frame-pictures */
seq_param->sequence_extension.bits.chroma_format = CHROMA_FORMAT_420; /* 4:2:0 */
seq_param->sequence_extension.bits.low_delay = 0; /* FIXME */
seq_param->sequence_extension.bits.frame_rate_extension_n = 0;
seq_param->sequence_extension.bits.frame_rate_extension_d = 0;
seq_param->gop_header.bits.time_code = (1 << 12); /* bit12: marker_bit */
seq_param->gop_header.bits.closed_gop = 0;
seq_param->gop_header.bits.broken_link = 0;
}
static void
mpeg2enc_init_picture_parameter(struct mpeg2enc_context *ctx,
VAEncPictureParameterBufferMPEG2 *pic_param)
{
pic_param->forward_reference_picture = VA_INVALID_ID;
pic_param->backward_reference_picture = VA_INVALID_ID;
pic_param->reconstructed_picture = VA_INVALID_ID;
pic_param->coded_buf = VA_INVALID_ID;
pic_param->picture_type = VAEncPictureTypeIntra;
pic_param->temporal_reference = 0;
pic_param->f_code[0][0] = 0xf;
pic_param->f_code[0][1] = 0xf;
pic_param->f_code[1][0] = 0xf;
pic_param->f_code[1][1] = 0xf;
pic_param->picture_coding_extension.bits.intra_dc_precision = 0; /* 8bits */
pic_param->picture_coding_extension.bits.picture_structure = 3; /* frame picture */
pic_param->picture_coding_extension.bits.top_field_first = 0;
pic_param->picture_coding_extension.bits.frame_pred_frame_dct = 1; /* FIXME */
pic_param->picture_coding_extension.bits.concealment_motion_vectors = 0;
pic_param->picture_coding_extension.bits.q_scale_type = 0;
pic_param->picture_coding_extension.bits.intra_vlc_format = 0;
pic_param->picture_coding_extension.bits.alternate_scan = 0;
pic_param->picture_coding_extension.bits.repeat_first_field = 0;
pic_param->picture_coding_extension.bits.progressive_frame = 1;
pic_param->picture_coding_extension.bits.composite_display_flag = 0;
}
static void
mpeg2enc_alloc_va_resources(struct mpeg2enc_context *ctx)
{
VAEntrypoint *entrypoint_list;
VAConfigAttrib attrib_list[2];
VAStatus va_status;
int max_entrypoints, num_entrypoints, entrypoint;
int major_ver, minor_ver;
ctx->va_dpy = va_open_display();
va_status = vaInitialize(ctx->va_dpy,
&major_ver,
&minor_ver);
CHECK_VASTATUS(va_status, "vaInitialize");
max_entrypoints = vaMaxNumEntrypoints(ctx->va_dpy);
entrypoint_list = malloc(max_entrypoints * sizeof(VAEntrypoint));
assert(entrypoint_list);
vaQueryConfigEntrypoints(ctx->va_dpy,
ctx->profile,
entrypoint_list,
&num_entrypoints);
for (entrypoint = 0; entrypoint < num_entrypoints; entrypoint++) {
if (entrypoint_list[entrypoint] == VAEntrypointEncSlice)
break;
}
free(entrypoint_list);
if (entrypoint == num_entrypoints) {
/* not find Slice entry point */
assert(0);
}
/* find out the format for the render target, and rate control mode */
attrib_list[0].type = VAConfigAttribRTFormat;
attrib_list[1].type = VAConfigAttribRateControl;
vaGetConfigAttributes(ctx->va_dpy,
ctx->profile,
VAEntrypointEncSlice,
&attrib_list[0],
2);
if ((attrib_list[0].value & VA_RT_FORMAT_YUV420) == 0) {
/* not find desired YUV420 RT format */
assert(0);
}
if ((attrib_list[1].value & ctx->rate_control_mode) == 0) {
/* Can't find matched RC mode */
fprintf(stderr, "RC mode %d isn't found, exit\n", ctx->rate_control_mode);
assert(0);
}
attrib_list[0].value = VA_RT_FORMAT_YUV420; /* set to desired RT format */
attrib_list[1].value = ctx->rate_control_mode; /* set to desired RC mode */
va_status = vaCreateConfig(ctx->va_dpy,
ctx->profile,
VAEntrypointEncSlice,
attrib_list,
2,
&ctx->config_id);
CHECK_VASTATUS(va_status, "vaCreateConfig");
/* Create a context for this decode pipe */
va_status = vaCreateContext(ctx->va_dpy,
ctx->config_id,
ctx->width,
ctx->height,
VA_PROGRESSIVE,
0,
0,
&ctx->context_id);
CHECK_VASTATUS(va_status, "vaCreateContext");
va_status = vaCreateSurfaces(ctx->va_dpy,
VA_RT_FORMAT_YUV420,
ctx->width,
ctx->height,
surface_ids,
SID_NUMBER,
NULL,
0);
CHECK_VASTATUS(va_status, "vaCreateSurfaces");
}
static void
mpeg2enc_init(struct mpeg2enc_context *ctx)
{
int i;
ctx->frame_data_buffer = (unsigned char *)malloc(ctx->frame_size);
ctx->seq_param_buf_id = VA_INVALID_ID;
ctx->pic_param_buf_id = VA_INVALID_ID;
ctx->packed_seq_header_param_buf_id = VA_INVALID_ID;
ctx->packed_seq_buf_id = VA_INVALID_ID;
ctx->packed_pic_header_param_buf_id = VA_INVALID_ID;
ctx->packed_pic_buf_id = VA_INVALID_ID;
ctx->codedbuf_buf_id = VA_INVALID_ID;
ctx->codedbuf_i_size = ctx->frame_size;
ctx->codedbuf_pb_size = 0;
ctx->next_display_order = 0;
ctx->next_type = VAEncPictureTypeIntra;
if (ctx->mode == MPEG2_MODE_I) {
ctx->intra_period = 1;
ctx->ip_period = 0;
} else if (ctx->mode == MPEG2_MODE_IP) {
ctx->intra_period = 16;
ctx->ip_period = 0;
} else {
ctx->intra_period = 16;
ctx->ip_period = 2;
}
ctx->next_bframes = ctx->ip_period;
ctx->new_sequence = 1;
ctx->new_gop_header = 1;
ctx->gop_header_in_display_order = 0;
ctx->bit_rate = -1;
for (i = 0; i < MAX_SLICES; i++) {
ctx->slice_param_buf_id[i] = VA_INVALID_ID;
}
mpeg2enc_init_sequence_parameter(ctx, &ctx->seq_param);
mpeg2enc_init_picture_parameter(ctx, &ctx->pic_param);
mpeg2enc_alloc_va_resources(ctx);
/* thread */
ctx->current_input_surface = SID_INPUT_PICTURE_0;
ctx->current_upload_surface = SID_INPUT_PICTURE_1;
ctx->upload_thread_value = pthread_create(&ctx->upload_thread_id,
NULL,
upload_yuv_to_surface,
ctx);
}
static int
mpeg2enc_time_code(VAEncSequenceParameterBufferMPEG2 *seq_param,
int num_frames)
{
int fps = (int)(seq_param->frame_rate + 0.5);
int time_code = 0;
int time_code_pictures, time_code_seconds, time_code_minutes, time_code_hours;
int drop_frame_flag = 0;
assert(fps <= 60);
time_code_seconds = num_frames / fps;
time_code_pictures = num_frames % fps;
time_code |= time_code_pictures;
time_code_minutes = time_code_seconds / 60;
time_code_seconds = time_code_seconds % 60;
time_code |= (time_code_seconds << 6);
time_code_hours = time_code_minutes / 60;
time_code_minutes = time_code_minutes % 60;
time_code |= (1 << 12); /* marker_bit */
time_code |= (time_code_minutes << 13);
time_code_hours = time_code_hours % 24;
time_code |= (time_code_hours << 19);
time_code |= (drop_frame_flag << 24);
return time_code;