summaryrefslogtreecommitdiff
path: root/gst-libs/gst/vaapi/gstvaapiencoder_vp8.c
blob: 99ffa4615fa03e4ff0939e4a0214511b32f18b77 (plain)
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
/*
 *  gstvaapiencoder_vp8.c - VP8 encoder
 *
 *  Copyright (C) 2015 Intel Corporation
 *    Author: Sreerenj Balachandran <sreerenj.balachandran@intel.com>
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public License
 *  as published by the Free Software Foundation; either version 2.1
 *  of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free
 *  Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 *  Boston, MA 02110-1301 USA
 */

#include "sysdeps.h"
#include <gst/base/gstbitwriter.h>
#include <gst/codecparsers/gstvp8parser.h>
#include "gstvaapicompat.h"
#include "gstvaapiencoder_priv.h"
#include "gstvaapiencoder_vp8.h"
#include "gstvaapicodedbufferproxy_priv.h"
#include "gstvaapisurface.h"

#define DEBUG 1
#include "gstvaapidebug.h"

/* Define default rate control mode ("constant-qp") */
#define DEFAULT_RATECONTROL GST_VAAPI_RATECONTROL_CQP

/* Supported set of VA rate controls, within this implementation */
#define SUPPORTED_RATECONTROLS                  \
  (GST_VAAPI_RATECONTROL_MASK (CQP) |           \
   GST_VAAPI_RATECONTROL_MASK (CBR) |           \
   GST_VAAPI_RATECONTROL_MASK (VBR))

/* Supported set of tuning options, within this implementation */
#define SUPPORTED_TUNE_OPTIONS \
  (GST_VAAPI_ENCODER_TUNE_MASK (NONE))

/* Supported set of VA packed headers, within this implementation */
#define SUPPORTED_PACKED_HEADERS                \
  (VA_ENC_PACKED_HEADER_NONE)

#define DEFAULT_LOOP_FILTER_LEVEL 0
#define DEFAULT_SHARPNESS_LEVEL 0
#define DEFAULT_YAC_QI 40

/* ------------------------------------------------------------------------- */
/* --- VP8 Encoder                                                      --- */
/* ------------------------------------------------------------------------- */

struct _GstVaapiEncoderVP8
{
  GstVaapiEncoder parent_instance;
  GstVaapiProfile profile;
  guint loop_filter_level;
  guint sharpness_level;
  guint yac_qi;
  guint frame_num;
  /* reference list */
  GstVaapiSurfaceProxy *last_ref;
  GstVaapiSurfaceProxy *golden_ref;
  GstVaapiSurfaceProxy *alt_ref;
};

/* Derives the profile that suits best to the configuration */
static GstVaapiEncoderStatus
ensure_profile (GstVaapiEncoderVP8 * encoder)
{
  /* Always start from "simple" profile for maximum compatibility */
  encoder->profile = GST_VAAPI_PROFILE_VP8;

  return GST_VAAPI_ENCODER_STATUS_SUCCESS;
}

/* Derives the profile supported by the underlying hardware */
static gboolean
ensure_hw_profile (GstVaapiEncoderVP8 * encoder)
{
  GstVaapiDisplay *const display = GST_VAAPI_ENCODER_DISPLAY (encoder);
  GstVaapiEntrypoint entrypoint = GST_VAAPI_ENTRYPOINT_SLICE_ENCODE;
  GstVaapiProfile profile, profiles[2];
  guint i, num_profiles = 0;

  profiles[num_profiles++] = encoder->profile;

  profile = GST_VAAPI_PROFILE_UNKNOWN;
  for (i = 0; i < num_profiles; i++) {
    if (gst_vaapi_display_has_encoder (display, profiles[i], entrypoint)) {
      profile = profiles[i];
      break;
    }
  }
  if (profile == GST_VAAPI_PROFILE_UNKNOWN)
    goto error_unsupported_profile;

  GST_VAAPI_ENCODER_CAST (encoder)->profile = profile;
  return TRUE;

  /* ERRORS */
error_unsupported_profile:
  {
    GST_ERROR ("unsupported HW profile %s",
        gst_vaapi_profile_get_va_name (encoder->profile));
    return FALSE;
  }
}

static gboolean
ensure_bitrate (GstVaapiEncoderVP8 * encoder)
{
  GstVaapiEncoder *const base_encoder = GST_VAAPI_ENCODER_CAST (encoder);

  /* Default compression: 64 bits per macroblock  */
  switch (GST_VAAPI_ENCODER_RATE_CONTROL (encoder)) {
    case GST_VAAPI_RATECONTROL_CBR:
    case GST_VAAPI_RATECONTROL_VBR:
      if (!base_encoder->bitrate) {
        base_encoder->bitrate =
            gst_util_uint64_scale (GST_VAAPI_ENCODER_WIDTH (encoder) *
            GST_VAAPI_ENCODER_HEIGHT (encoder),
            GST_VAAPI_ENCODER_FPS_N (encoder),
            GST_VAAPI_ENCODER_FPS_D (encoder)) / (4 * 1000);
      }
      break;
    default:
      base_encoder->bitrate = 0;
      break;
  }

  return TRUE;
}

static GstVaapiEncoderStatus
set_context_info (GstVaapiEncoder * base_encoder)
{
  GstVaapiEncoderVP8 *encoder = GST_VAAPI_ENCODER_VP8 (base_encoder);
  GstVideoInfo *const vip = GST_VAAPI_ENCODER_VIDEO_INFO (encoder);

  /* Maximum sizes for common headers (in bytes) */
  enum
  {
    MAX_FRAME_TAG_SIZE = 10,
    MAX_UPDATE_SEGMENTATION_SIZE = 13,
    MAX_MB_LF_ADJUSTMENTS_SIZE = 9,
    MAX_QUANT_INDICES_SIZE = 5,
    MAX_TOKEN_PROB_UPDATE_SIZE = 1188,
    MAX_MV_PROBE_UPDATE_SIZE = 38,
    MAX_REST_OF_FRAME_HDR_SIZE = 15
  };

  if (!ensure_hw_profile (encoder))
    return GST_VAAPI_ENCODER_STATUS_ERROR_UNSUPPORTED_PROFILE;

  base_encoder->num_ref_frames = 3;

  /* Only YUV 4:2:0 formats are supported for now. */
  /* Assumig 4 times compression ratio */
  base_encoder->codedbuf_size = GST_ROUND_UP_16 (vip->width) *
      GST_ROUND_UP_16 (vip->height) * 12 / 4;

  base_encoder->codedbuf_size +=
      MAX_FRAME_TAG_SIZE + MAX_UPDATE_SEGMENTATION_SIZE +
      MAX_MB_LF_ADJUSTMENTS_SIZE + MAX_QUANT_INDICES_SIZE +
      MAX_TOKEN_PROB_UPDATE_SIZE + MAX_MV_PROBE_UPDATE_SIZE +
      MAX_REST_OF_FRAME_HDR_SIZE;

  base_encoder->context_info.profile = base_encoder->profile;
  base_encoder->context_info.entrypoint = GST_VAAPI_ENTRYPOINT_SLICE_ENCODE;

  return GST_VAAPI_ENCODER_STATUS_SUCCESS;
}

static void
clear_ref (GstVaapiEncoderVP8 * encoder, GstVaapiSurfaceProxy ** ref)
{
  if (*ref) {
    gst_vaapi_encoder_release_surface (GST_VAAPI_ENCODER (encoder), *ref);
    *ref = NULL;
  }
}

static void
clear_references (GstVaapiEncoderVP8 * encoder)
{
  clear_ref (encoder, &encoder->last_ref);
  clear_ref (encoder, &encoder->golden_ref);
  clear_ref (encoder, &encoder->alt_ref);
}

static void
push_reference (GstVaapiEncoderVP8 * encoder, GstVaapiSurfaceProxy * ref)
{
  if (encoder->last_ref == NULL) {
    encoder->golden_ref = gst_vaapi_surface_proxy_ref (ref);
    encoder->alt_ref = gst_vaapi_surface_proxy_ref (ref);
  } else {
    clear_ref (encoder, &encoder->alt_ref);
    encoder->alt_ref = encoder->golden_ref;
    encoder->golden_ref = encoder->last_ref;
  }
  encoder->last_ref = ref;
}

static gboolean
fill_sequence (GstVaapiEncoderVP8 * encoder, GstVaapiEncSequence * sequence)
{
  GstVaapiEncoder *const base_encoder = GST_VAAPI_ENCODER_CAST (encoder);
  VAEncSequenceParameterBufferVP8 *const seq_param = sequence->param;

  memset (seq_param, 0, sizeof (VAEncSequenceParameterBufferVP8));

  seq_param->frame_width = GST_VAAPI_ENCODER_WIDTH (encoder);
  seq_param->frame_height = GST_VAAPI_ENCODER_HEIGHT (encoder);

  if (GST_VAAPI_ENCODER_RATE_CONTROL (encoder) == GST_VAAPI_RATECONTROL_CBR ||
      GST_VAAPI_ENCODER_RATE_CONTROL (encoder) == GST_VAAPI_RATECONTROL_VBR)
    seq_param->bits_per_second = base_encoder->bitrate * 1000;

  seq_param->intra_period = base_encoder->keyframe_period;

  return TRUE;
}

static gboolean
ensure_sequence (GstVaapiEncoderVP8 * encoder, GstVaapiEncPicture * picture)
{
  GstVaapiEncSequence *sequence;

  g_assert (picture);

  if (picture->type != GST_VAAPI_PICTURE_TYPE_I)
    return TRUE;

  sequence = GST_VAAPI_ENC_SEQUENCE_NEW (VP8, encoder);
  if (!sequence)
    goto error;

  if (!fill_sequence (encoder, sequence))
    goto error;

  gst_vaapi_enc_picture_set_sequence (picture, sequence);
  gst_vaapi_codec_object_replace (&sequence, NULL);
  return TRUE;

  /* ERRORS */
error:
  {
    gst_vaapi_codec_object_replace (&sequence, NULL);
    return FALSE;
  }
}

static gboolean
ensure_control_rate_params (GstVaapiEncoderVP8 * encoder)
{
  GstVaapiEncoder *const base_encoder = GST_VAAPI_ENCODER_CAST (encoder);

  if (GST_VAAPI_ENCODER_RATE_CONTROL (encoder) == GST_VAAPI_RATECONTROL_CQP)
    return TRUE;

  /* RateControl params */
  GST_VAAPI_ENCODER_VA_RATE_CONTROL (encoder).initial_qp = encoder->yac_qi;
  GST_VAAPI_ENCODER_VA_RATE_CONTROL (encoder).min_qp = 1;

  /* *INDENT-OFF* */
  /* HRD params */
  GST_VAAPI_ENCODER_VA_HRD (encoder) = (VAEncMiscParameterHRD) {
    .buffer_size = base_encoder->bitrate * 1000 * 2,
    .initial_buffer_fullness = base_encoder->bitrate * 1000,
  };
  /* *INDENT-ON* */

  return TRUE;
}

static gboolean
ensure_misc_params (GstVaapiEncoderVP8 * encoder, GstVaapiEncPicture * picture)
{
  GstVaapiEncoder *const base_encoder = GST_VAAPI_ENCODER_CAST (encoder);

  if (!gst_vaapi_encoder_ensure_param_quality_level (base_encoder, picture))
    return FALSE;

  if (!gst_vaapi_encoder_ensure_param_control_rate (base_encoder, picture))
    return FALSE;

  return TRUE;
}

static gboolean
fill_picture (GstVaapiEncoderVP8 * encoder,
    GstVaapiEncPicture * picture,
    GstVaapiCodedBuffer * codedbuf, GstVaapiSurfaceProxy * surface)
{
  VAEncPictureParameterBufferVP8 *const pic_param = picture->param;
  int i;

  memset (pic_param, 0, sizeof (VAEncPictureParameterBufferVP8));

  pic_param->reconstructed_frame = GST_VAAPI_SURFACE_PROXY_SURFACE_ID (surface);
  pic_param->coded_buf = GST_VAAPI_CODED_BUFFER_ID (codedbuf);

  if (picture->type == GST_VAAPI_PICTURE_TYPE_P) {
    pic_param->pic_flags.bits.frame_type = 1;
    pic_param->ref_arf_frame =
        GST_VAAPI_SURFACE_PROXY_SURFACE_ID (encoder->alt_ref);
    pic_param->ref_gf_frame =
        GST_VAAPI_SURFACE_PROXY_SURFACE_ID (encoder->golden_ref);
    pic_param->ref_last_frame =
        GST_VAAPI_SURFACE_PROXY_SURFACE_ID (encoder->last_ref);
    pic_param->pic_flags.bits.refresh_last = 1;
    pic_param->pic_flags.bits.refresh_golden_frame = 0;
    pic_param->pic_flags.bits.copy_buffer_to_golden = 1;
    pic_param->pic_flags.bits.refresh_alternate_frame = 0;
    pic_param->pic_flags.bits.copy_buffer_to_alternate = 2;
  } else {
    pic_param->ref_last_frame = VA_INVALID_SURFACE;
    pic_param->ref_gf_frame = VA_INVALID_SURFACE;
    pic_param->ref_arf_frame = VA_INVALID_SURFACE;
    pic_param->pic_flags.bits.refresh_last = 1;
    pic_param->pic_flags.bits.refresh_golden_frame = 1;
    pic_param->pic_flags.bits.refresh_alternate_frame = 1;
  }

  pic_param->pic_flags.bits.show_frame = 1;

  if (encoder->loop_filter_level) {
    pic_param->pic_flags.bits.version = 1;
    pic_param->pic_flags.bits.loop_filter_type = 1;     /* Enable simple loop filter */
    /* Disabled segmentation, so what matters is only loop_filter_level[0] */
    for (i = 0; i < 4; i++)
      pic_param->loop_filter_level[i] = encoder->loop_filter_level;
  }

  pic_param->sharpness_level = encoder->sharpness_level;

  /* Used for CBR */
  pic_param->clamp_qindex_low = 0;
  pic_param->clamp_qindex_high = 127;

  return TRUE;
}

static gboolean
ensure_picture (GstVaapiEncoderVP8 * encoder, GstVaapiEncPicture * picture,
    GstVaapiCodedBufferProxy * codedbuf_proxy, GstVaapiSurfaceProxy * surface)
{
  GstVaapiCodedBuffer *const codedbuf =
      GST_VAAPI_CODED_BUFFER_PROXY_BUFFER (codedbuf_proxy);

  if (!fill_picture (encoder, picture, codedbuf, surface))
    return FALSE;

  return TRUE;
}

static gboolean
fill_quantization_table (GstVaapiEncoderVP8 * encoder,
    GstVaapiEncPicture * picture, GstVaapiEncQMatrix * q_matrix)
{
  VAQMatrixBufferVP8 *const qmatrix_param = q_matrix->param;
  int i;

  memset (qmatrix_param, 0, sizeof (VAQMatrixBufferVP8));

  /* DefaultYacQantVal = 8 for I frame, which is ac_qlookup[4] and
   * DefaultYacQantVAl = 44 for P frame, which is ac_qllookup[40] */
  for (i = 0; i < 4; i++) {
    if (encoder->yac_qi == DEFAULT_YAC_QI) {
      if (picture->type == GST_VAAPI_PICTURE_TYPE_I)
        qmatrix_param->quantization_index[i] = 4;
      else
        qmatrix_param->quantization_index[i] = 40;
    } else
      qmatrix_param->quantization_index[i] = encoder->yac_qi;
  }

  return TRUE;
}

static gboolean
ensure_quantization_table (GstVaapiEncoderVP8 * encoder,
    GstVaapiEncPicture * picture)
{
  g_assert (picture);

  picture->q_matrix = GST_VAAPI_ENC_Q_MATRIX_NEW (VP8, encoder);
  if (!picture->q_matrix) {
    GST_ERROR ("failed to allocate quantiser table");
    return GST_VAAPI_DECODER_STATUS_ERROR_ALLOCATION_FAILED;
  }

  if (!fill_quantization_table (encoder, picture, picture->q_matrix))
    return FALSE;

  return TRUE;
}

static GstVaapiEncoderStatus
gst_vaapi_encoder_vp8_encode (GstVaapiEncoder * base_encoder,
    GstVaapiEncPicture * picture, GstVaapiCodedBufferProxy * codedbuf)
{
  GstVaapiEncoderVP8 *const encoder = GST_VAAPI_ENCODER_VP8 (base_encoder);
  GstVaapiEncoderStatus ret = GST_VAAPI_ENCODER_STATUS_ERROR_UNKNOWN;
  GstVaapiSurfaceProxy *reconstruct = NULL;

  reconstruct = gst_vaapi_encoder_create_surface (base_encoder);

  g_assert (GST_VAAPI_SURFACE_PROXY_SURFACE (reconstruct));

  if (!ensure_sequence (encoder, picture))
    goto error;
  if (!ensure_misc_params (encoder, picture))
    goto error;
  if (!ensure_picture (encoder, picture, codedbuf, reconstruct))
    goto error;
  if (!ensure_quantization_table (encoder, picture))
    goto error;
  if (!gst_vaapi_enc_picture_encode (picture))
    goto error;
  if (reconstruct) {
    if (picture->type == GST_VAAPI_PICTURE_TYPE_I)
      clear_references (encoder);
    push_reference (encoder, reconstruct);
  }

  return GST_VAAPI_ENCODER_STATUS_SUCCESS;

  /* ERRORS */
error:
  {
    if (reconstruct)
      gst_vaapi_encoder_release_surface (GST_VAAPI_ENCODER (encoder),
          reconstruct);
    return ret;
  }
}

static GstVaapiEncoderStatus
gst_vaapi_encoder_vp8_flush (GstVaapiEncoder * base_encoder)
{
  GstVaapiEncoderVP8 *const encoder = GST_VAAPI_ENCODER_VP8 (base_encoder);

  encoder->frame_num = 0;
  clear_references (encoder);

  return GST_VAAPI_ENCODER_STATUS_SUCCESS;
}

static GstVaapiEncoderStatus
gst_vaapi_encoder_vp8_reordering (GstVaapiEncoder * base_encoder,
    GstVideoCodecFrame * frame, GstVaapiEncPicture ** output)
{
  GstVaapiEncoderVP8 *const encoder = GST_VAAPI_ENCODER_VP8 (base_encoder);
  GstVaapiEncPicture *picture = NULL;
  GstVaapiEncoderStatus status = GST_VAAPI_ENCODER_STATUS_SUCCESS;

  if (!frame)
    return GST_VAAPI_ENCODER_STATUS_NO_SURFACE;

  picture = GST_VAAPI_ENC_PICTURE_NEW (VP8, encoder, frame);
  if (!picture) {
    GST_WARNING ("create VP8 picture failed, frame timestamp:%"
        GST_TIME_FORMAT, GST_TIME_ARGS (frame->pts));
    return GST_VAAPI_ENCODER_STATUS_ERROR_ALLOCATION_FAILED;
  }

  if (encoder->frame_num >= base_encoder->keyframe_period) {
    encoder->frame_num = 0;
    clear_references (encoder);
  }
  if (encoder->frame_num == 0) {
    picture->type = GST_VAAPI_PICTURE_TYPE_I;
    GST_VIDEO_CODEC_FRAME_SET_SYNC_POINT (frame);
  } else {
    picture->type = GST_VAAPI_PICTURE_TYPE_P;
  }

  encoder->frame_num++;
  *output = picture;
  return status;
}

static GstVaapiEncoderStatus
gst_vaapi_encoder_vp8_reconfigure (GstVaapiEncoder * base_encoder)
{
  GstVaapiEncoderVP8 *const encoder = GST_VAAPI_ENCODER_VP8 (base_encoder);
  GstVaapiEncoderStatus status;

  status = ensure_profile (encoder);
  if (status != GST_VAAPI_ENCODER_STATUS_SUCCESS)
    return status;

  if (!ensure_bitrate (encoder))
    goto error;

  ensure_control_rate_params (encoder);
  return set_context_info (base_encoder);

  /* ERRORS */
error:
  {
    return GST_VAAPI_ENCODER_STATUS_ERROR_OPERATION_FAILED;
  }
}

struct _GstVaapiEncoderVP8Class
{
  GstVaapiEncoderClass parent_class;
};

G_DEFINE_TYPE (GstVaapiEncoderVP8, gst_vaapi_encoder_vp8,
    GST_TYPE_VAAPI_ENCODER);

static void
gst_vaapi_encoder_vp8_init (GstVaapiEncoderVP8 * encoder)
{
  encoder->frame_num = 0;
  encoder->last_ref = NULL;
  encoder->golden_ref = NULL;
  encoder->alt_ref = NULL;
}

static void
gst_vaapi_encoder_vp8_finalize (GObject * object)
{
  GstVaapiEncoderVP8 *const encoder = GST_VAAPI_ENCODER_VP8 (object);
  clear_references (encoder);
  G_OBJECT_CLASS (gst_vaapi_encoder_vp8_parent_class)->finalize (object);
}

/**
 * @ENCODER_VP8_PROP_RATECONTROL: Rate control (#GstVaapiRateControl).
 * @ENCODER_VP8_PROP_TUNE: The tuning options (#GstVaapiEncoderTune).
 * @ENCODER_VP8_PROP_LOOP_FILTER_LEVEL: Loop Filter Level(uint).
 * @ENCODER_VP8_PROP_LOOP_SHARPNESS_LEVEL: Sharpness Level(uint).
 * @ENCODER_VP8_PROP_YAC_Q_INDEX: Quantization table index for luma AC(uint).
 *
 * The set of VP8 encoder specific configurable properties.
 */
enum
{
  ENCODER_VP8_PROP_RATECONTROL = 1,
  ENCODER_VP8_PROP_TUNE,
  ENCODER_VP8_PROP_LOOP_FILTER_LEVEL,
  ENCODER_VP8_PROP_SHARPNESS_LEVEL,
  ENCODER_VP8_PROP_YAC_Q_INDEX,
  ENCODER_VP8_N_PROPERTIES
};

static GParamSpec *properties[ENCODER_VP8_N_PROPERTIES];

static void
gst_vaapi_encoder_vp8_set_property (GObject * object, guint prop_id,
    const GValue * value, GParamSpec * pspec)
{
  GstVaapiEncoder *const base_encoder = GST_VAAPI_ENCODER (object);
  GstVaapiEncoderVP8 *const encoder = GST_VAAPI_ENCODER_VP8 (object);

  if (base_encoder->num_codedbuf_queued > 0) {
    GST_ERROR_OBJECT (object,
        "failed to set any property after encoding started");
    return;
  }

  switch (prop_id) {
    case ENCODER_VP8_PROP_RATECONTROL:
      gst_vaapi_encoder_set_rate_control (base_encoder,
          g_value_get_enum (value));
      break;
    case ENCODER_VP8_PROP_TUNE:
      gst_vaapi_encoder_set_tuning (base_encoder, g_value_get_enum (value));
      break;
    case ENCODER_VP8_PROP_LOOP_FILTER_LEVEL:
      encoder->loop_filter_level = g_value_get_uint (value);
      break;
    case ENCODER_VP8_PROP_SHARPNESS_LEVEL:
      encoder->sharpness_level = g_value_get_uint (value);
      break;
    case ENCODER_VP8_PROP_YAC_Q_INDEX:
      encoder->yac_qi = g_value_get_uint (value);
      break;
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
  }
}

static void
gst_vaapi_encoder_vp8_get_property (GObject * object, guint prop_id,
    GValue * value, GParamSpec * pspec)
{
  GstVaapiEncoderVP8 *const encoder = GST_VAAPI_ENCODER_VP8 (object);
  GstVaapiEncoder *const base_encoder = GST_VAAPI_ENCODER (object);

  switch (prop_id) {
    case ENCODER_VP8_PROP_RATECONTROL:
      g_value_set_enum (value, base_encoder->rate_control);
      break;
    case ENCODER_VP8_PROP_TUNE:
      g_value_set_enum (value, base_encoder->tune);
      break;
    case ENCODER_VP8_PROP_LOOP_FILTER_LEVEL:
      g_value_set_uint (value, encoder->loop_filter_level);
      break;
    case ENCODER_VP8_PROP_SHARPNESS_LEVEL:
      g_value_set_uint (value, encoder->sharpness_level);
      break;
    case ENCODER_VP8_PROP_YAC_Q_INDEX:
      g_value_set_uint (value, encoder->yac_qi);
      break;
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
  }
}

GST_VAAPI_ENCODER_DEFINE_CLASS_DATA (VP8);

static void
gst_vaapi_encoder_vp8_class_init (GstVaapiEncoderVP8Class * klass)
{
  GObjectClass *const object_class = G_OBJECT_CLASS (klass);
  GstVaapiEncoderClass *const encoder_class = GST_VAAPI_ENCODER_CLASS (klass);

  encoder_class->class_data = &g_class_data;
  encoder_class->reconfigure = gst_vaapi_encoder_vp8_reconfigure;
  encoder_class->reordering = gst_vaapi_encoder_vp8_reordering;
  encoder_class->encode = gst_vaapi_encoder_vp8_encode;
  encoder_class->flush = gst_vaapi_encoder_vp8_flush;

  object_class->set_property = gst_vaapi_encoder_vp8_set_property;
  object_class->get_property = gst_vaapi_encoder_vp8_get_property;
  object_class->finalize = gst_vaapi_encoder_vp8_finalize;

  properties[ENCODER_VP8_PROP_RATECONTROL] =
      g_param_spec_enum ("rate-control",
      "Rate Control", "Rate control mode",
      g_class_data.rate_control_get_type (),
      g_class_data.default_rate_control,
      G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT |
      GST_VAAPI_PARAM_ENCODER_EXPOSURE);

  properties[ENCODER_VP8_PROP_TUNE] =
      g_param_spec_enum ("tune", "Encoder Tuning", "Encoder tuning option",
      g_class_data.encoder_tune_get_type (),
      g_class_data.default_encoder_tune,
      G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT |
      GST_VAAPI_PARAM_ENCODER_EXPOSURE);

  properties[ENCODER_VP8_PROP_LOOP_FILTER_LEVEL] =
      g_param_spec_uint ("loop-filter-level", "Loop Filter Level",
      "Controls the deblocking filter strength", 0, 63,
      DEFAULT_LOOP_FILTER_LEVEL,
      G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT |
      GST_VAAPI_PARAM_ENCODER_EXPOSURE);

  properties[ENCODER_VP8_PROP_SHARPNESS_LEVEL] =
      g_param_spec_uint ("sharpness-level", "Sharpness Level",
      "Controls the deblocking filter sensitivity", 0, 7,
      DEFAULT_SHARPNESS_LEVEL,
      G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT |
      GST_VAAPI_PARAM_ENCODER_EXPOSURE);

  properties[ENCODER_VP8_PROP_YAC_Q_INDEX] =
      g_param_spec_uint ("yac-qi",
      "Luma AC Quant Table index",
      "Quantization Table index for Luma AC Coefficients,"
      " (in default case, yac_qi=4 for key frames and yac_qi=40"
      " for P frames)",
      0, 127, DEFAULT_YAC_QI,
      G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT |
      GST_VAAPI_PARAM_ENCODER_EXPOSURE);

  g_object_class_install_properties (object_class, ENCODER_VP8_N_PROPERTIES,
      properties);

  gst_type_mark_as_plugin_api (g_class_data.rate_control_get_type (), 0);
  gst_type_mark_as_plugin_api (g_class_data.encoder_tune_get_type (), 0);
}

/**
 * gst_vaapi_encoder_vp8_new:
 * @display: a #GstVaapiDisplay
 *
 * Creates a new #GstVaapiEncoder for VP8 encoding.
 *
 * Return value: the newly allocated #GstVaapiEncoder object
 */
GstVaapiEncoder *
gst_vaapi_encoder_vp8_new (GstVaapiDisplay * display)
{
  return g_object_new (GST_TYPE_VAAPI_ENCODER_VP8, "display", display, NULL);
}