GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/vaapi_encode_h264.c Lines: 0 664 0.0 %
Date: 2020-10-23 17:01:47 Branches: 0 339 0.0 %

Line Branch Exec Source
1
/*
2
 * This file is part of FFmpeg.
3
 *
4
 * FFmpeg is free software; you can redistribute it and/or
5
 * modify it under the terms of the GNU Lesser General Public
6
 * License as published by the Free Software Foundation; either
7
 * version 2.1 of the License, or (at your option) any later version.
8
 *
9
 * FFmpeg is distributed in the hope that it will be useful,
10
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12
 * Lesser General Public License for more details.
13
 *
14
 * You should have received a copy of the GNU Lesser General Public
15
 * License along with FFmpeg; if not, write to the Free Software
16
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17
 */
18
19
#include <string.h>
20
21
#include <va/va.h>
22
#include <va/va_enc_h264.h>
23
24
#include "libavutil/avassert.h"
25
#include "libavutil/common.h"
26
#include "libavutil/internal.h"
27
#include "libavutil/opt.h"
28
29
#include "avcodec.h"
30
#include "cbs.h"
31
#include "cbs_h264.h"
32
#include "h264.h"
33
#include "h264_levels.h"
34
#include "h264_sei.h"
35
#include "internal.h"
36
#include "vaapi_encode.h"
37
38
enum {
39
    SEI_TIMING         = 0x01,
40
    SEI_IDENTIFIER     = 0x02,
41
    SEI_RECOVERY_POINT = 0x04,
42
};
43
44
// Random (version 4) ISO 11578 UUID.
45
static const uint8_t vaapi_encode_h264_sei_identifier_uuid[16] = {
46
    0x59, 0x94, 0x8b, 0x28, 0x11, 0xec, 0x45, 0xaf,
47
    0x96, 0x75, 0x19, 0xd4, 0x1f, 0xea, 0xa9, 0x4d,
48
};
49
50
typedef struct VAAPIEncodeH264Picture {
51
    int frame_num;
52
    int pic_order_cnt;
53
54
    int64_t last_idr_frame;
55
    uint16_t idr_pic_id;
56
57
    int primary_pic_type;
58
    int slice_type;
59
60
    int cpb_delay;
61
    int dpb_delay;
62
} VAAPIEncodeH264Picture;
63
64
typedef struct VAAPIEncodeH264Context {
65
    VAAPIEncodeContext common;
66
67
    // User options.
68
    int qp;
69
    int quality;
70
    int coder;
71
    int aud;
72
    int sei;
73
    int profile;
74
    int level;
75
76
    // Derived settings.
77
    int mb_width;
78
    int mb_height;
79
80
    int fixed_qp_idr;
81
    int fixed_qp_p;
82
    int fixed_qp_b;
83
84
    int dpb_frames;
85
86
    // Writer structures.
87
    CodedBitstreamContext *cbc;
88
    CodedBitstreamFragment current_access_unit;
89
90
    H264RawAUD   raw_aud;
91
    H264RawSPS   raw_sps;
92
    H264RawPPS   raw_pps;
93
    H264RawSEI   raw_sei;
94
    H264RawSlice raw_slice;
95
96
    H264RawSEIBufferingPeriod      sei_buffering_period;
97
    H264RawSEIPicTiming            sei_pic_timing;
98
    H264RawSEIRecoveryPoint        sei_recovery_point;
99
    H264RawSEIUserDataUnregistered sei_identifier;
100
    char                          *sei_identifier_string;
101
102
    int aud_needed;
103
    int sei_needed;
104
    int sei_cbr_workaround_needed;
105
} VAAPIEncodeH264Context;
106
107
108
static int vaapi_encode_h264_write_access_unit(AVCodecContext *avctx,
109
                                               char *data, size_t *data_len,
110
                                               CodedBitstreamFragment *au)
111
{
112
    VAAPIEncodeH264Context *priv = avctx->priv_data;
113
    int err;
114
115
    err = ff_cbs_write_fragment_data(priv->cbc, au);
116
    if (err < 0) {
117
        av_log(avctx, AV_LOG_ERROR, "Failed to write packed header.\n");
118
        return err;
119
    }
120
121
    if (*data_len < 8 * au->data_size - au->data_bit_padding) {
122
        av_log(avctx, AV_LOG_ERROR, "Access unit too large: "
123
               "%zu < %zu.\n", *data_len,
124
               8 * au->data_size - au->data_bit_padding);
125
        return AVERROR(ENOSPC);
126
    }
127
128
    memcpy(data, au->data, au->data_size);
129
    *data_len = 8 * au->data_size - au->data_bit_padding;
130
131
    return 0;
132
}
133
134
static int vaapi_encode_h264_add_nal(AVCodecContext *avctx,
135
                                     CodedBitstreamFragment *au,
136
                                     void *nal_unit)
137
{
138
    H264RawNALUnitHeader *header = nal_unit;
139
    int err;
140
141
    err = ff_cbs_insert_unit_content(au, -1,
142
                                     header->nal_unit_type, nal_unit, NULL);
143
    if (err < 0) {
144
        av_log(avctx, AV_LOG_ERROR, "Failed to add NAL unit: "
145
               "type = %d.\n", header->nal_unit_type);
146
        return err;
147
    }
148
149
    return 0;
150
}
151
152
static int vaapi_encode_h264_write_sequence_header(AVCodecContext *avctx,
153
                                                   char *data, size_t *data_len)
154
{
155
    VAAPIEncodeH264Context *priv = avctx->priv_data;
156
    CodedBitstreamFragment   *au = &priv->current_access_unit;
157
    int err;
158
159
    if (priv->aud_needed) {
160
        err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_aud);
161
        if (err < 0)
162
            goto fail;
163
        priv->aud_needed = 0;
164
    }
165
166
    err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_sps);
167
    if (err < 0)
168
        goto fail;
169
170
    err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_pps);
171
    if (err < 0)
172
        goto fail;
173
174
    err = vaapi_encode_h264_write_access_unit(avctx, data, data_len, au);
175
fail:
176
    ff_cbs_fragment_reset(au);
177
    return err;
178
}
179
180
static int vaapi_encode_h264_write_slice_header(AVCodecContext *avctx,
181
                                                VAAPIEncodePicture *pic,
182
                                                VAAPIEncodeSlice *slice,
183
                                                char *data, size_t *data_len)
184
{
185
    VAAPIEncodeH264Context *priv = avctx->priv_data;
186
    CodedBitstreamFragment   *au = &priv->current_access_unit;
187
    int err;
188
189
    if (priv->aud_needed) {
190
        err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_aud);
191
        if (err < 0)
192
            goto fail;
193
        priv->aud_needed = 0;
194
    }
195
196
    err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_slice);
197
    if (err < 0)
198
        goto fail;
199
200
    err = vaapi_encode_h264_write_access_unit(avctx, data, data_len, au);
201
fail:
202
    ff_cbs_fragment_reset(au);
203
    return err;
204
}
205
206
static int vaapi_encode_h264_write_extra_header(AVCodecContext *avctx,
207
                                                VAAPIEncodePicture *pic,
208
                                                int index, int *type,
209
                                                char *data, size_t *data_len)
210
{
211
    VAAPIEncodeH264Context *priv = avctx->priv_data;
212
    CodedBitstreamFragment   *au = &priv->current_access_unit;
213
    int err, i;
214
215
    if (priv->sei_needed) {
216
        H264RawSEI *sei = &priv->raw_sei;
217
218
        if (priv->aud_needed) {
219
            err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_aud);
220
            if (err < 0)
221
                goto fail;
222
            priv->aud_needed = 0;
223
        }
224
225
        *sei = (H264RawSEI) {
226
            .nal_unit_header = {
227
                .nal_unit_type = H264_NAL_SEI,
228
            },
229
        };
230
231
        i = 0;
232
233
        if (priv->sei_needed & SEI_IDENTIFIER) {
234
            sei->payload[i].payload_type = H264_SEI_TYPE_USER_DATA_UNREGISTERED;
235
            sei->payload[i].payload.user_data_unregistered = priv->sei_identifier;
236
            ++i;
237
        }
238
        if (priv->sei_needed & SEI_TIMING) {
239
            if (pic->type == PICTURE_TYPE_IDR) {
240
                sei->payload[i].payload_type = H264_SEI_TYPE_BUFFERING_PERIOD;
241
                sei->payload[i].payload.buffering_period = priv->sei_buffering_period;
242
                ++i;
243
            }
244
            sei->payload[i].payload_type = H264_SEI_TYPE_PIC_TIMING;
245
            sei->payload[i].payload.pic_timing = priv->sei_pic_timing;
246
            ++i;
247
        }
248
        if (priv->sei_needed & SEI_RECOVERY_POINT) {
249
            sei->payload[i].payload_type = H264_SEI_TYPE_RECOVERY_POINT;
250
            sei->payload[i].payload.recovery_point = priv->sei_recovery_point;
251
            ++i;
252
        }
253
254
        sei->payload_count = i;
255
        av_assert0(sei->payload_count > 0);
256
257
        err = vaapi_encode_h264_add_nal(avctx, au, sei);
258
        if (err < 0)
259
            goto fail;
260
        priv->sei_needed = 0;
261
262
        err = vaapi_encode_h264_write_access_unit(avctx, data, data_len, au);
263
        if (err < 0)
264
            goto fail;
265
266
        ff_cbs_fragment_reset(au);
267
268
        *type = VAEncPackedHeaderRawData;
269
        return 0;
270
271
#if !CONFIG_VAAPI_1
272
    } else if (priv->sei_cbr_workaround_needed) {
273
        // Insert a zero-length header using the old SEI type.  This is
274
        // required to avoid triggering broken behaviour on Intel platforms
275
        // in CBR mode where an invalid SEI message is generated by the
276
        // driver and inserted into the stream.
277
        *data_len = 0;
278
        *type = VAEncPackedHeaderH264_SEI;
279
        priv->sei_cbr_workaround_needed = 0;
280
        return 0;
281
#endif
282
283
    } else {
284
        return AVERROR_EOF;
285
    }
286
287
fail:
288
    ff_cbs_fragment_reset(au);
289
    return err;
290
}
291
292
static int vaapi_encode_h264_init_sequence_params(AVCodecContext *avctx)
293
{
294
    VAAPIEncodeContext                *ctx = avctx->priv_data;
295
    VAAPIEncodeH264Context           *priv = avctx->priv_data;
296
    H264RawSPS                        *sps = &priv->raw_sps;
297
    H264RawPPS                        *pps = &priv->raw_pps;
298
    VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
299
    VAEncPictureParameterBufferH264  *vpic = ctx->codec_picture_params;
300
301
    memset(sps, 0, sizeof(*sps));
302
    memset(pps, 0, sizeof(*pps));
303
304
    sps->nal_unit_header.nal_ref_idc   = 3;
305
    sps->nal_unit_header.nal_unit_type = H264_NAL_SPS;
306
307
    sps->profile_idc = avctx->profile & 0xff;
308
309
    if (avctx->profile == FF_PROFILE_H264_CONSTRAINED_BASELINE ||
310
        avctx->profile == FF_PROFILE_H264_MAIN)
311
        sps->constraint_set1_flag = 1;
312
313
    if (avctx->profile == FF_PROFILE_H264_HIGH)
314
        sps->constraint_set3_flag = ctx->gop_size == 1;
315
316
    if (avctx->profile == FF_PROFILE_H264_MAIN ||
317
        avctx->profile == FF_PROFILE_H264_HIGH) {
318
        sps->constraint_set4_flag = 1;
319
        sps->constraint_set5_flag = ctx->b_per_p == 0;
320
    }
321
322
    if (ctx->gop_size == 1)
323
        priv->dpb_frames = 0;
324
    else
325
        priv->dpb_frames = 1 + ctx->max_b_depth;
326
327
    if (avctx->level != FF_LEVEL_UNKNOWN) {
328
        sps->level_idc = avctx->level;
329
    } else {
330
        const H264LevelDescriptor *level;
331
        int framerate;
332
333
        if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
334
            framerate = avctx->framerate.num / avctx->framerate.den;
335
        else
336
            framerate = 0;
337
338
        level = ff_h264_guess_level(sps->profile_idc,
339
                                    avctx->bit_rate,
340
                                    framerate,
341
                                    priv->mb_width  * 16,
342
                                    priv->mb_height * 16,
343
                                    priv->dpb_frames);
344
        if (level) {
345
            av_log(avctx, AV_LOG_VERBOSE, "Using level %s.\n", level->name);
346
            if (level->constraint_set3_flag)
347
                sps->constraint_set3_flag = 1;
348
            sps->level_idc = level->level_idc;
349
        } else {
350
            av_log(avctx, AV_LOG_WARNING, "Stream will not conform "
351
                   "to any level: using level 6.2.\n");
352
            sps->level_idc = 62;
353
        }
354
    }
355
356
    sps->seq_parameter_set_id = 0;
357
    sps->chroma_format_idc    = 1;
358
359
    sps->log2_max_frame_num_minus4 = 4;
360
    sps->pic_order_cnt_type        = 0;
361
    sps->log2_max_pic_order_cnt_lsb_minus4 = 4;
362
363
    sps->max_num_ref_frames = priv->dpb_frames;
364
365
    sps->pic_width_in_mbs_minus1        = priv->mb_width  - 1;
366
    sps->pic_height_in_map_units_minus1 = priv->mb_height - 1;
367
368
    sps->frame_mbs_only_flag = 1;
369
    sps->direct_8x8_inference_flag = 1;
370
371
    if (avctx->width  != 16 * priv->mb_width ||
372
        avctx->height != 16 * priv->mb_height) {
373
        sps->frame_cropping_flag = 1;
374
375
        sps->frame_crop_left_offset   = 0;
376
        sps->frame_crop_right_offset  =
377
            (16 * priv->mb_width - avctx->width) / 2;
378
        sps->frame_crop_top_offset    = 0;
379
        sps->frame_crop_bottom_offset =
380
            (16 * priv->mb_height - avctx->height) / 2;
381
    } else {
382
        sps->frame_cropping_flag = 0;
383
    }
384
385
    sps->vui_parameters_present_flag = 1;
386
387
    if (avctx->sample_aspect_ratio.num != 0 &&
388
        avctx->sample_aspect_ratio.den != 0) {
389
        static const AVRational sar_idc[] = {
390
            {   0,  0 },
391
            {   1,  1 }, {  12, 11 }, {  10, 11 }, {  16, 11 },
392
            {  40, 33 }, {  24, 11 }, {  20, 11 }, {  32, 11 },
393
            {  80, 33 }, {  18, 11 }, {  15, 11 }, {  64, 33 },
394
            { 160, 99 }, {   4,  3 }, {   3,  2 }, {   2,  1 },
395
        };
396
        int num, den, i;
397
        av_reduce(&num, &den, avctx->sample_aspect_ratio.num,
398
                  avctx->sample_aspect_ratio.den, 65535);
399
        for (i = 0; i < FF_ARRAY_ELEMS(sar_idc); i++) {
400
            if (num == sar_idc[i].num &&
401
                den == sar_idc[i].den) {
402
                sps->vui.aspect_ratio_idc = i;
403
                break;
404
            }
405
        }
406
        if (i >= FF_ARRAY_ELEMS(sar_idc)) {
407
            sps->vui.aspect_ratio_idc = 255;
408
            sps->vui.sar_width  = num;
409
            sps->vui.sar_height = den;
410
        }
411
        sps->vui.aspect_ratio_info_present_flag = 1;
412
    }
413
414
    if (avctx->color_range     != AVCOL_RANGE_UNSPECIFIED ||
415
        avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
416
        avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||
417
        avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {
418
        sps->vui.video_signal_type_present_flag = 1;
419
        sps->vui.video_format      = 5; // Unspecified.
420
        sps->vui.video_full_range_flag =
421
            avctx->color_range == AVCOL_RANGE_JPEG;
422
423
        if (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
424
            avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||
425
            avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {
426
            sps->vui.colour_description_present_flag = 1;
427
            sps->vui.colour_primaries         = avctx->color_primaries;
428
            sps->vui.transfer_characteristics = avctx->color_trc;
429
            sps->vui.matrix_coefficients      = avctx->colorspace;
430
        }
431
    } else {
432
        sps->vui.video_format             = 5;
433
        sps->vui.video_full_range_flag    = 0;
434
        sps->vui.colour_primaries         = avctx->color_primaries;
435
        sps->vui.transfer_characteristics = avctx->color_trc;
436
        sps->vui.matrix_coefficients      = avctx->colorspace;
437
    }
438
439
    if (avctx->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED) {
440
        sps->vui.chroma_loc_info_present_flag = 1;
441
        sps->vui.chroma_sample_loc_type_top_field    =
442
        sps->vui.chroma_sample_loc_type_bottom_field =
443
            avctx->chroma_sample_location - 1;
444
    }
445
446
    sps->vui.timing_info_present_flag = 1;
447
    if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
448
        sps->vui.num_units_in_tick = avctx->framerate.den;
449
        sps->vui.time_scale        = 2 * avctx->framerate.num;
450
        sps->vui.fixed_frame_rate_flag = 1;
451
    } else {
452
        sps->vui.num_units_in_tick = avctx->time_base.num;
453
        sps->vui.time_scale        = 2 * avctx->time_base.den;
454
        sps->vui.fixed_frame_rate_flag = 0;
455
    }
456
457
    if (priv->sei & SEI_TIMING) {
458
        H264RawHRD *hrd = &sps->vui.nal_hrd_parameters;
459
        H264RawSEIBufferingPeriod *bp = &priv->sei_buffering_period;
460
461
        sps->vui.nal_hrd_parameters_present_flag = 1;
462
463
        hrd->cpb_cnt_minus1 = 0;
464
465
        // Try to scale these to a sensible range so that the
466
        // golomb encode of the value is not overlong.
467
        hrd->bit_rate_scale =
468
            av_clip_uintp2(av_log2(ctx->va_bit_rate) - 15 - 6, 4);
469
        hrd->bit_rate_value_minus1[0] =
470
            (ctx->va_bit_rate >> hrd->bit_rate_scale + 6) - 1;
471
472
        hrd->cpb_size_scale =
473
            av_clip_uintp2(av_log2(ctx->hrd_params.buffer_size) - 15 - 4, 4);
474
        hrd->cpb_size_value_minus1[0] =
475
            (ctx->hrd_params.buffer_size >> hrd->cpb_size_scale + 4) - 1;
476
477
        // CBR mode as defined for the HRD cannot be achieved without filler
478
        // data, so this flag cannot be set even with VAAPI CBR modes.
479
        hrd->cbr_flag[0] = 0;
480
481
        hrd->initial_cpb_removal_delay_length_minus1 = 23;
482
        hrd->cpb_removal_delay_length_minus1         = 23;
483
        hrd->dpb_output_delay_length_minus1          = 7;
484
        hrd->time_offset_length                      = 0;
485
486
        bp->seq_parameter_set_id = sps->seq_parameter_set_id;
487
488
        // This calculation can easily overflow 32 bits.
489
        bp->nal.initial_cpb_removal_delay[0] = 90000 *
490
            (uint64_t)ctx->hrd_params.initial_buffer_fullness /
491
            ctx->hrd_params.buffer_size;
492
        bp->nal.initial_cpb_removal_delay_offset[0] = 0;
493
    } else {
494
        sps->vui.nal_hrd_parameters_present_flag = 0;
495
        sps->vui.low_delay_hrd_flag = 1 - sps->vui.fixed_frame_rate_flag;
496
    }
497
498
    sps->vui.bitstream_restriction_flag    = 1;
499
    sps->vui.motion_vectors_over_pic_boundaries_flag = 1;
500
    sps->vui.log2_max_mv_length_horizontal = 15;
501
    sps->vui.log2_max_mv_length_vertical   = 15;
502
    sps->vui.max_num_reorder_frames        = ctx->max_b_depth;
503
    sps->vui.max_dec_frame_buffering       = ctx->max_b_depth + 1;
504
505
    pps->nal_unit_header.nal_ref_idc = 3;
506
    pps->nal_unit_header.nal_unit_type = H264_NAL_PPS;
507
508
    pps->pic_parameter_set_id = 0;
509
    pps->seq_parameter_set_id = 0;
510
511
    pps->entropy_coding_mode_flag =
512
        !(sps->profile_idc == FF_PROFILE_H264_BASELINE ||
513
          sps->profile_idc == FF_PROFILE_H264_EXTENDED ||
514
          sps->profile_idc == FF_PROFILE_H264_CAVLC_444);
515
    if (!priv->coder && pps->entropy_coding_mode_flag)
516
        pps->entropy_coding_mode_flag = 0;
517
518
    pps->num_ref_idx_l0_default_active_minus1 = 0;
519
    pps->num_ref_idx_l1_default_active_minus1 = 0;
520
521
    pps->pic_init_qp_minus26 = priv->fixed_qp_idr - 26;
522
523
    if (sps->profile_idc == FF_PROFILE_H264_BASELINE ||
524
        sps->profile_idc == FF_PROFILE_H264_EXTENDED ||
525
        sps->profile_idc == FF_PROFILE_H264_MAIN) {
526
        pps->more_rbsp_data = 0;
527
    } else {
528
        pps->more_rbsp_data = 1;
529
530
        pps->transform_8x8_mode_flag = 1;
531
    }
532
533
    *vseq = (VAEncSequenceParameterBufferH264) {
534
        .seq_parameter_set_id = sps->seq_parameter_set_id,
535
        .level_idc        = sps->level_idc,
536
        .intra_period     = ctx->gop_size,
537
        .intra_idr_period = ctx->gop_size,
538
        .ip_period        = ctx->b_per_p + 1,
539
540
        .bits_per_second       = ctx->va_bit_rate,
541
        .max_num_ref_frames    = sps->max_num_ref_frames,
542
        .picture_width_in_mbs  = sps->pic_width_in_mbs_minus1 + 1,
543
        .picture_height_in_mbs = sps->pic_height_in_map_units_minus1 + 1,
544
545
        .seq_fields.bits = {
546
            .chroma_format_idc                 = sps->chroma_format_idc,
547
            .frame_mbs_only_flag               = sps->frame_mbs_only_flag,
548
            .mb_adaptive_frame_field_flag      = sps->mb_adaptive_frame_field_flag,
549
            .seq_scaling_matrix_present_flag   = sps->seq_scaling_matrix_present_flag,
550
            .direct_8x8_inference_flag         = sps->direct_8x8_inference_flag,
551
            .log2_max_frame_num_minus4         = sps->log2_max_frame_num_minus4,
552
            .pic_order_cnt_type                = sps->pic_order_cnt_type,
553
            .log2_max_pic_order_cnt_lsb_minus4 = sps->log2_max_pic_order_cnt_lsb_minus4,
554
            .delta_pic_order_always_zero_flag  = sps->delta_pic_order_always_zero_flag,
555
        },
556
557
        .bit_depth_luma_minus8   = sps->bit_depth_luma_minus8,
558
        .bit_depth_chroma_minus8 = sps->bit_depth_chroma_minus8,
559
560
        .frame_cropping_flag      = sps->frame_cropping_flag,
561
        .frame_crop_left_offset   = sps->frame_crop_left_offset,
562
        .frame_crop_right_offset  = sps->frame_crop_right_offset,
563
        .frame_crop_top_offset    = sps->frame_crop_top_offset,
564
        .frame_crop_bottom_offset = sps->frame_crop_bottom_offset,
565
566
        .vui_parameters_present_flag = sps->vui_parameters_present_flag,
567
568
        .vui_fields.bits = {
569
            .aspect_ratio_info_present_flag = sps->vui.aspect_ratio_info_present_flag,
570
            .timing_info_present_flag       = sps->vui.timing_info_present_flag,
571
            .bitstream_restriction_flag     = sps->vui.bitstream_restriction_flag,
572
            .log2_max_mv_length_horizontal  = sps->vui.log2_max_mv_length_horizontal,
573
            .log2_max_mv_length_vertical    = sps->vui.log2_max_mv_length_vertical,
574
        },
575
576
        .aspect_ratio_idc  = sps->vui.aspect_ratio_idc,
577
        .sar_width         = sps->vui.sar_width,
578
        .sar_height        = sps->vui.sar_height,
579
        .num_units_in_tick = sps->vui.num_units_in_tick,
580
        .time_scale        = sps->vui.time_scale,
581
    };
582
583
    *vpic = (VAEncPictureParameterBufferH264) {
584
        .CurrPic = {
585
            .picture_id = VA_INVALID_ID,
586
            .flags      = VA_PICTURE_H264_INVALID,
587
        },
588
589
        .coded_buf = VA_INVALID_ID,
590
591
        .pic_parameter_set_id = pps->pic_parameter_set_id,
592
        .seq_parameter_set_id = pps->seq_parameter_set_id,
593
594
        .pic_init_qp                  = pps->pic_init_qp_minus26 + 26,
595
        .num_ref_idx_l0_active_minus1 = pps->num_ref_idx_l0_default_active_minus1,
596
        .num_ref_idx_l1_active_minus1 = pps->num_ref_idx_l1_default_active_minus1,
597
598
        .chroma_qp_index_offset        = pps->chroma_qp_index_offset,
599
        .second_chroma_qp_index_offset = pps->second_chroma_qp_index_offset,
600
601
        .pic_fields.bits = {
602
            .entropy_coding_mode_flag        = pps->entropy_coding_mode_flag,
603
            .weighted_pred_flag              = pps->weighted_pred_flag,
604
            .weighted_bipred_idc             = pps->weighted_bipred_idc,
605
            .constrained_intra_pred_flag     = pps->constrained_intra_pred_flag,
606
            .transform_8x8_mode_flag         = pps->transform_8x8_mode_flag,
607
            .deblocking_filter_control_present_flag =
608
                pps->deblocking_filter_control_present_flag,
609
            .redundant_pic_cnt_present_flag  = pps->redundant_pic_cnt_present_flag,
610
            .pic_order_present_flag          =
611
                pps->bottom_field_pic_order_in_frame_present_flag,
612
            .pic_scaling_matrix_present_flag = pps->pic_scaling_matrix_present_flag,
613
        },
614
    };
615
616
    return 0;
617
}
618
619
static int vaapi_encode_h264_init_picture_params(AVCodecContext *avctx,
620
                                                 VAAPIEncodePicture *pic)
621
{
622
    VAAPIEncodeContext               *ctx = avctx->priv_data;
623
    VAAPIEncodeH264Context          *priv = avctx->priv_data;
624
    VAAPIEncodeH264Picture          *hpic = pic->priv_data;
625
    VAAPIEncodePicture              *prev = pic->prev;
626
    VAAPIEncodeH264Picture         *hprev = prev ? prev->priv_data : NULL;
627
    VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;
628
    int i;
629
630
    if (pic->type == PICTURE_TYPE_IDR) {
631
        av_assert0(pic->display_order == pic->encode_order);
632
633
        hpic->frame_num      = 0;
634
        hpic->last_idr_frame = pic->display_order;
635
        hpic->idr_pic_id     = hprev ? hprev->idr_pic_id + 1 : 0;
636
637
        hpic->primary_pic_type = 0;
638
        hpic->slice_type       = 7;
639
    } else {
640
        av_assert0(prev);
641
642
        hpic->frame_num = hprev->frame_num + prev->is_reference;
643
644
        hpic->last_idr_frame = hprev->last_idr_frame;
645
        hpic->idr_pic_id     = hprev->idr_pic_id;
646
647
        if (pic->type == PICTURE_TYPE_I) {
648
            hpic->slice_type       = 7;
649
            hpic->primary_pic_type = 0;
650
        } else if (pic->type == PICTURE_TYPE_P) {
651
            hpic->slice_type       = 5;
652
            hpic->primary_pic_type = 1;
653
        } else {
654
            hpic->slice_type       = 6;
655
            hpic->primary_pic_type = 2;
656
        }
657
    }
658
    hpic->pic_order_cnt = pic->display_order - hpic->last_idr_frame;
659
    hpic->dpb_delay     = pic->display_order - pic->encode_order + ctx->max_b_depth;
660
    hpic->cpb_delay     = pic->encode_order - hpic->last_idr_frame;
661
662
    if (priv->aud) {
663
        priv->aud_needed = 1;
664
        priv->raw_aud = (H264RawAUD) {
665
            .nal_unit_header = {
666
                .nal_unit_type = H264_NAL_AUD,
667
            },
668
            .primary_pic_type  = hpic->primary_pic_type,
669
        };
670
    } else {
671
        priv->aud_needed = 0;
672
    }
673
674
    priv->sei_needed = 0;
675
676
    if (priv->sei & SEI_IDENTIFIER && pic->encode_order == 0)
677
        priv->sei_needed |= SEI_IDENTIFIER;
678
#if !CONFIG_VAAPI_1
679
    if (ctx->va_rc_mode == VA_RC_CBR)
680
        priv->sei_cbr_workaround_needed = 1;
681
#endif
682
683
    if (priv->sei & SEI_TIMING) {
684
        priv->sei_pic_timing = (H264RawSEIPicTiming) {
685
            .cpb_removal_delay = 2 * hpic->cpb_delay,
686
            .dpb_output_delay  = 2 * hpic->dpb_delay,
687
        };
688
689
        priv->sei_needed |= SEI_TIMING;
690
    }
691
692
    if (priv->sei & SEI_RECOVERY_POINT && pic->type == PICTURE_TYPE_I) {
693
        priv->sei_recovery_point = (H264RawSEIRecoveryPoint) {
694
            .recovery_frame_cnt = 0,
695
            .exact_match_flag   = 1,
696
            .broken_link_flag   = ctx->b_per_p > 0,
697
        };
698
699
        priv->sei_needed |= SEI_RECOVERY_POINT;
700
    }
701
702
    vpic->CurrPic = (VAPictureH264) {
703
        .picture_id          = pic->recon_surface,
704
        .frame_idx           = hpic->frame_num,
705
        .flags               = 0,
706
        .TopFieldOrderCnt    = hpic->pic_order_cnt,
707
        .BottomFieldOrderCnt = hpic->pic_order_cnt,
708
    };
709
710
    for (i = 0; i < pic->nb_refs; i++) {
711
        VAAPIEncodePicture      *ref = pic->refs[i];
712
        VAAPIEncodeH264Picture *href;
713
714
        av_assert0(ref && ref->encode_order < pic->encode_order);
715
        href = ref->priv_data;
716
717
        vpic->ReferenceFrames[i] = (VAPictureH264) {
718
            .picture_id          = ref->recon_surface,
719
            .frame_idx           = href->frame_num,
720
            .flags               = VA_PICTURE_H264_SHORT_TERM_REFERENCE,
721
            .TopFieldOrderCnt    = href->pic_order_cnt,
722
            .BottomFieldOrderCnt = href->pic_order_cnt,
723
        };
724
    }
725
    for (; i < FF_ARRAY_ELEMS(vpic->ReferenceFrames); i++) {
726
        vpic->ReferenceFrames[i] = (VAPictureH264) {
727
            .picture_id = VA_INVALID_ID,
728
            .flags      = VA_PICTURE_H264_INVALID,
729
        };
730
    }
731
732
    vpic->coded_buf = pic->output_buffer;
733
734
    vpic->frame_num = hpic->frame_num;
735
736
    vpic->pic_fields.bits.idr_pic_flag       = (pic->type == PICTURE_TYPE_IDR);
737
    vpic->pic_fields.bits.reference_pic_flag = (pic->type != PICTURE_TYPE_B);
738
739
    return 0;
740
}
741
742
static void vaapi_encode_h264_default_ref_pic_list(AVCodecContext *avctx,
743
                                                   VAAPIEncodePicture *pic,
744
                                                   VAAPIEncodePicture **rpl0,
745
                                                   VAAPIEncodePicture **rpl1,
746
                                                   int *rpl_size)
747
{
748
    VAAPIEncodePicture *prev;
749
    VAAPIEncodeH264Picture *hp, *hn, *hc;
750
    int i, j, n = 0;
751
752
    prev = pic->prev;
753
    av_assert0(prev);
754
    hp = pic->priv_data;
755
756
    for (i = 0; i < pic->prev->nb_dpb_pics; i++) {
757
        hn = prev->dpb[i]->priv_data;
758
        av_assert0(hn->frame_num < hp->frame_num);
759
760
        if (pic->type == PICTURE_TYPE_P) {
761
            for (j = n; j > 0; j--) {
762
                hc = rpl0[j - 1]->priv_data;
763
                av_assert0(hc->frame_num != hn->frame_num);
764
                if (hc->frame_num > hn->frame_num)
765
                    break;
766
                rpl0[j] = rpl0[j - 1];
767
            }
768
            rpl0[j] = prev->dpb[i];
769
770
        } else if (pic->type == PICTURE_TYPE_B) {
771
            for (j = n; j > 0; j--) {
772
                hc = rpl0[j - 1]->priv_data;
773
                av_assert0(hc->pic_order_cnt != hp->pic_order_cnt);
774
                if (hc->pic_order_cnt < hp->pic_order_cnt) {
775
                    if (hn->pic_order_cnt > hp->pic_order_cnt ||
776
                        hn->pic_order_cnt < hc->pic_order_cnt)
777
                        break;
778
                } else {
779
                    if (hn->pic_order_cnt > hc->pic_order_cnt)
780
                        break;
781
                }
782
                rpl0[j] = rpl0[j - 1];
783
            }
784
            rpl0[j] = prev->dpb[i];
785
786
            for (j = n; j > 0; j--) {
787
                hc = rpl1[j - 1]->priv_data;
788
                av_assert0(hc->pic_order_cnt != hp->pic_order_cnt);
789
                if (hc->pic_order_cnt > hp->pic_order_cnt) {
790
                    if (hn->pic_order_cnt < hp->pic_order_cnt ||
791
                        hn->pic_order_cnt > hc->pic_order_cnt)
792
                        break;
793
                } else {
794
                    if (hn->pic_order_cnt < hc->pic_order_cnt)
795
                        break;
796
                }
797
                rpl1[j] = rpl1[j - 1];
798
            }
799
            rpl1[j] = prev->dpb[i];
800
        }
801
802
        ++n;
803
    }
804
805
    if (pic->type == PICTURE_TYPE_B) {
806
        for (i = 0; i < n; i++) {
807
            if (rpl0[i] != rpl1[i])
808
                break;
809
        }
810
        if (i == n)
811
            FFSWAP(VAAPIEncodePicture*, rpl1[0], rpl1[1]);
812
    }
813
814
    if (pic->type == PICTURE_TYPE_P ||
815
        pic->type == PICTURE_TYPE_B) {
816
        av_log(avctx, AV_LOG_DEBUG, "Default RefPicList0 for fn=%d/poc=%d:",
817
               hp->frame_num, hp->pic_order_cnt);
818
        for (i = 0; i < n; i++) {
819
            hn = rpl0[i]->priv_data;
820
            av_log(avctx, AV_LOG_DEBUG, "  fn=%d/poc=%d",
821
                   hn->frame_num, hn->pic_order_cnt);
822
        }
823
        av_log(avctx, AV_LOG_DEBUG, "\n");
824
    }
825
    if (pic->type == PICTURE_TYPE_B) {
826
        av_log(avctx, AV_LOG_DEBUG, "Default RefPicList1 for fn=%d/poc=%d:",
827
               hp->frame_num, hp->pic_order_cnt);
828
        for (i = 0; i < n; i++) {
829
            hn = rpl1[i]->priv_data;
830
            av_log(avctx, AV_LOG_DEBUG, "  fn=%d/poc=%d",
831
                   hn->frame_num, hn->pic_order_cnt);
832
        }
833
        av_log(avctx, AV_LOG_DEBUG, "\n");
834
    }
835
836
    *rpl_size = n;
837
}
838
839
static int vaapi_encode_h264_init_slice_params(AVCodecContext *avctx,
840
                                               VAAPIEncodePicture *pic,
841
                                               VAAPIEncodeSlice *slice)
842
{
843
    VAAPIEncodeH264Context          *priv = avctx->priv_data;
844
    VAAPIEncodeH264Picture          *hpic = pic->priv_data;
845
    VAAPIEncodePicture              *prev = pic->prev;
846
    H264RawSPS                       *sps = &priv->raw_sps;
847
    H264RawPPS                       *pps = &priv->raw_pps;
848
    H264RawSliceHeader                *sh = &priv->raw_slice.header;
849
    VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;
850
    VAEncSliceParameterBufferH264 *vslice = slice->codec_slice_params;
851
    int i, j;
852
853
    if (pic->type == PICTURE_TYPE_IDR) {
854
        sh->nal_unit_header.nal_unit_type = H264_NAL_IDR_SLICE;
855
        sh->nal_unit_header.nal_ref_idc   = 3;
856
    } else {
857
        sh->nal_unit_header.nal_unit_type = H264_NAL_SLICE;
858
        sh->nal_unit_header.nal_ref_idc   = pic->is_reference;
859
    }
860
861
    sh->first_mb_in_slice = slice->block_start;
862
    sh->slice_type        = hpic->slice_type;
863
864
    sh->pic_parameter_set_id = pps->pic_parameter_set_id;
865
866
    sh->frame_num = hpic->frame_num &
867
        ((1 << (4 + sps->log2_max_frame_num_minus4)) - 1);
868
    sh->idr_pic_id = hpic->idr_pic_id;
869
    sh->pic_order_cnt_lsb = hpic->pic_order_cnt &
870
        ((1 << (4 + sps->log2_max_pic_order_cnt_lsb_minus4)) - 1);
871
872
    sh->direct_spatial_mv_pred_flag = 1;
873
874
    if (pic->type == PICTURE_TYPE_B)
875
        sh->slice_qp_delta = priv->fixed_qp_b - (pps->pic_init_qp_minus26 + 26);
876
    else if (pic->type == PICTURE_TYPE_P)
877
        sh->slice_qp_delta = priv->fixed_qp_p - (pps->pic_init_qp_minus26 + 26);
878
    else
879
        sh->slice_qp_delta = priv->fixed_qp_idr - (pps->pic_init_qp_minus26 + 26);
880
881
    if (pic->is_reference && pic->type != PICTURE_TYPE_IDR) {
882
        VAAPIEncodePicture *discard_list[MAX_DPB_SIZE];
883
        int discard = 0, keep = 0;
884
885
        // Discard everything which is in the DPB of the previous frame but
886
        // not in the DPB of this one.
887
        for (i = 0; i < prev->nb_dpb_pics; i++) {
888
            for (j = 0; j < pic->nb_dpb_pics; j++) {
889
                if (prev->dpb[i] == pic->dpb[j])
890
                    break;
891
            }
892
            if (j == pic->nb_dpb_pics) {
893
                discard_list[discard] = prev->dpb[i];
894
                ++discard;
895
            } else {
896
                ++keep;
897
            }
898
        }
899
        av_assert0(keep <= priv->dpb_frames);
900
901
        if (discard == 0) {
902
            sh->adaptive_ref_pic_marking_mode_flag = 0;
903
        } else {
904
            sh->adaptive_ref_pic_marking_mode_flag = 1;
905
            for (i = 0; i < discard; i++) {
906
                VAAPIEncodeH264Picture *old = discard_list[i]->priv_data;
907
                av_assert0(old->frame_num < hpic->frame_num);
908
                sh->mmco[i].memory_management_control_operation = 1;
909
                sh->mmco[i].difference_of_pic_nums_minus1 =
910
                    hpic->frame_num - old->frame_num - 1;
911
            }
912
            sh->mmco[i].memory_management_control_operation = 0;
913
        }
914
    }
915
916
    // If the intended references are not the first entries of RefPicListN
917
    // by default, use ref-pic-list-modification to move them there.
918
    if (pic->type == PICTURE_TYPE_P || pic->type == PICTURE_TYPE_B) {
919
        VAAPIEncodePicture *def_l0[MAX_DPB_SIZE], *def_l1[MAX_DPB_SIZE];
920
        VAAPIEncodeH264Picture *href;
921
        int n;
922
923
        vaapi_encode_h264_default_ref_pic_list(avctx, pic,
924
                                               def_l0, def_l1, &n);
925
926
        if (pic->type == PICTURE_TYPE_P) {
927
            int need_rplm = 0;
928
            for (i = 0; i < pic->nb_refs; i++) {
929
                av_assert0(pic->refs[i]);
930
                if (pic->refs[i] != def_l0[i])
931
                    need_rplm = 1;
932
            }
933
934
            sh->ref_pic_list_modification_flag_l0 = need_rplm;
935
            if (need_rplm) {
936
                int pic_num = hpic->frame_num;
937
                for (i = 0; i < pic->nb_refs; i++) {
938
                    href = pic->refs[i]->priv_data;
939
                    av_assert0(href->frame_num != pic_num);
940
                    if (href->frame_num < pic_num) {
941
                        sh->rplm_l0[i].modification_of_pic_nums_idc = 0;
942
                        sh->rplm_l0[i].abs_diff_pic_num_minus1 =
943
                            pic_num - href->frame_num - 1;
944
                    } else {
945
                        sh->rplm_l0[i].modification_of_pic_nums_idc = 1;
946
                        sh->rplm_l0[i].abs_diff_pic_num_minus1 =
947
                            href->frame_num - pic_num - 1;
948
                    }
949
                    pic_num = href->frame_num;
950
                }
951
                sh->rplm_l0[i].modification_of_pic_nums_idc = 3;
952
            }
953
954
        } else {
955
            int need_rplm_l0 = 0, need_rplm_l1 = 0;
956
            int n0 = 0, n1 = 0;
957
            for (i = 0; i < pic->nb_refs; i++) {
958
                av_assert0(pic->refs[i]);
959
                href = pic->refs[i]->priv_data;
960
                av_assert0(href->pic_order_cnt != hpic->pic_order_cnt);
961
                if (href->pic_order_cnt < hpic->pic_order_cnt) {
962
                    if (pic->refs[i] != def_l0[n0])
963
                        need_rplm_l0 = 1;
964
                    ++n0;
965
                } else {
966
                    if (pic->refs[i] != def_l1[n1])
967
                        need_rplm_l1 = 1;
968
                    ++n1;
969
                }
970
            }
971
972
            sh->ref_pic_list_modification_flag_l0 = need_rplm_l0;
973
            if (need_rplm_l0) {
974
                int pic_num = hpic->frame_num;
975
                for (i = j = 0; i < pic->nb_refs; i++) {
976
                    href = pic->refs[i]->priv_data;
977
                    if (href->pic_order_cnt > hpic->pic_order_cnt)
978
                        continue;
979
                    av_assert0(href->frame_num != pic_num);
980
                    if (href->frame_num < pic_num) {
981
                        sh->rplm_l0[j].modification_of_pic_nums_idc = 0;
982
                        sh->rplm_l0[j].abs_diff_pic_num_minus1 =
983
                            pic_num - href->frame_num - 1;
984
                    } else {
985
                        sh->rplm_l0[j].modification_of_pic_nums_idc = 1;
986
                        sh->rplm_l0[j].abs_diff_pic_num_minus1 =
987
                            href->frame_num - pic_num - 1;
988
                    }
989
                    pic_num = href->frame_num;
990
                    ++j;
991
                }
992
                av_assert0(j == n0);
993
                sh->rplm_l0[j].modification_of_pic_nums_idc = 3;
994
            }
995
996
            sh->ref_pic_list_modification_flag_l1 = need_rplm_l1;
997
            if (need_rplm_l1) {
998
                int pic_num = hpic->frame_num;
999
                for (i = j = 0; i < pic->nb_refs; i++) {
1000
                    href = pic->refs[i]->priv_data;
1001
                    if (href->pic_order_cnt < hpic->pic_order_cnt)
1002
                        continue;
1003
                    av_assert0(href->frame_num != pic_num);
1004
                    if (href->frame_num < pic_num) {
1005
                        sh->rplm_l1[j].modification_of_pic_nums_idc = 0;
1006
                        sh->rplm_l1[j].abs_diff_pic_num_minus1 =
1007
                            pic_num - href->frame_num - 1;
1008
                    } else {
1009
                        sh->rplm_l1[j].modification_of_pic_nums_idc = 1;
1010
                        sh->rplm_l1[j].abs_diff_pic_num_minus1 =
1011
                            href->frame_num - pic_num - 1;
1012
                    }
1013
                    pic_num = href->frame_num;
1014
                    ++j;
1015
                }
1016
                av_assert0(j == n1);
1017
                sh->rplm_l1[j].modification_of_pic_nums_idc = 3;
1018
            }
1019
        }
1020
    }
1021
1022
    vslice->macroblock_address = slice->block_start;
1023
    vslice->num_macroblocks    = slice->block_size;
1024
1025
    vslice->macroblock_info = VA_INVALID_ID;
1026
1027
    vslice->slice_type           = sh->slice_type % 5;
1028
    vslice->pic_parameter_set_id = sh->pic_parameter_set_id;
1029
    vslice->idr_pic_id           = sh->idr_pic_id;
1030
1031
    vslice->pic_order_cnt_lsb = sh->pic_order_cnt_lsb;
1032
1033
    vslice->direct_spatial_mv_pred_flag = sh->direct_spatial_mv_pred_flag;
1034
1035
    for (i = 0; i < FF_ARRAY_ELEMS(vslice->RefPicList0); i++) {
1036
        vslice->RefPicList0[i].picture_id = VA_INVALID_ID;
1037
        vslice->RefPicList0[i].flags      = VA_PICTURE_H264_INVALID;
1038
        vslice->RefPicList1[i].picture_id = VA_INVALID_ID;
1039
        vslice->RefPicList1[i].flags      = VA_PICTURE_H264_INVALID;
1040
    }
1041
1042
    av_assert0(pic->nb_refs <= 2);
1043
    if (pic->nb_refs >= 1) {
1044
        // Backward reference for P- or B-frame.
1045
        av_assert0(pic->type == PICTURE_TYPE_P ||
1046
                   pic->type == PICTURE_TYPE_B);
1047
        vslice->RefPicList0[0] = vpic->ReferenceFrames[0];
1048
    }
1049
    if (pic->nb_refs >= 2) {
1050
        // Forward reference for B-frame.
1051
        av_assert0(pic->type == PICTURE_TYPE_B);
1052
        vslice->RefPicList1[0] = vpic->ReferenceFrames[1];
1053
    }
1054
1055
    vslice->slice_qp_delta = sh->slice_qp_delta;
1056
1057
    return 0;
1058
}
1059
1060
static av_cold int vaapi_encode_h264_configure(AVCodecContext *avctx)
1061
{
1062
    VAAPIEncodeContext      *ctx = avctx->priv_data;
1063
    VAAPIEncodeH264Context *priv = avctx->priv_data;
1064
    int err;
1065
1066
    err = ff_cbs_init(&priv->cbc, AV_CODEC_ID_H264, avctx);
1067
    if (err < 0)
1068
        return err;
1069
1070
    priv->mb_width  = FFALIGN(avctx->width,  16) / 16;
1071
    priv->mb_height = FFALIGN(avctx->height, 16) / 16;
1072
1073
    if (ctx->va_rc_mode == VA_RC_CQP) {
1074
        priv->fixed_qp_p = av_clip(ctx->rc_quality, 1, 51);
1075
        if (avctx->i_quant_factor > 0.0)
1076
            priv->fixed_qp_idr =
1077
                av_clip((avctx->i_quant_factor * priv->fixed_qp_p +
1078
                         avctx->i_quant_offset) + 0.5, 1, 51);
1079
        else
1080
            priv->fixed_qp_idr = priv->fixed_qp_p;
1081
        if (avctx->b_quant_factor > 0.0)
1082
            priv->fixed_qp_b =
1083
                av_clip((avctx->b_quant_factor * priv->fixed_qp_p +
1084
                         avctx->b_quant_offset) + 0.5, 1, 51);
1085
        else
1086
            priv->fixed_qp_b = priv->fixed_qp_p;
1087
1088
        av_log(avctx, AV_LOG_DEBUG, "Using fixed QP = "
1089
               "%d / %d / %d for IDR- / P- / B-frames.\n",
1090
               priv->fixed_qp_idr, priv->fixed_qp_p, priv->fixed_qp_b);
1091
1092
    } else {
1093
        // These still need to be  set for pic_init_qp/slice_qp_delta.
1094
        priv->fixed_qp_idr = 26;
1095
        priv->fixed_qp_p   = 26;
1096
        priv->fixed_qp_b   = 26;
1097
    }
1098
1099
    if (!ctx->rc_mode->hrd) {
1100
        // Timing SEI requires a mode respecting HRD parameters.
1101
        priv->sei &= ~SEI_TIMING;
1102
    }
1103
1104
    if (priv->sei & SEI_IDENTIFIER) {
1105
        const char *lavc  = LIBAVCODEC_IDENT;
1106
        const char *vaapi = VA_VERSION_S;
1107
        const char *driver;
1108
        int len;
1109
1110
        memcpy(priv->sei_identifier.uuid_iso_iec_11578,
1111
               vaapi_encode_h264_sei_identifier_uuid,
1112
               sizeof(priv->sei_identifier.uuid_iso_iec_11578));
1113
1114
        driver = vaQueryVendorString(ctx->hwctx->display);
1115
        if (!driver)
1116
            driver = "unknown driver";
1117
1118
        len = snprintf(NULL, 0, "%s / VAAPI %s / %s", lavc, vaapi, driver);
1119
        if (len >= 0) {
1120
            priv->sei_identifier_string = av_malloc(len + 1);
1121
            if (!priv->sei_identifier_string)
1122
                return AVERROR(ENOMEM);
1123
1124
            snprintf(priv->sei_identifier_string, len + 1,
1125
                     "%s / VAAPI %s / %s", lavc, vaapi, driver);
1126
1127
            priv->sei_identifier.data        = priv->sei_identifier_string;
1128
            priv->sei_identifier.data_length = len + 1;
1129
        }
1130
    }
1131
1132
    ctx->roi_quant_range = 51 + 6 * (ctx->profile->depth - 8);
1133
1134
    return 0;
1135
}
1136
1137
static const VAAPIEncodeProfile vaapi_encode_h264_profiles[] = {
1138
    { FF_PROFILE_H264_HIGH, 8, 3, 1, 1, VAProfileH264High },
1139
    { FF_PROFILE_H264_MAIN, 8, 3, 1, 1, VAProfileH264Main },
1140
    { FF_PROFILE_H264_CONSTRAINED_BASELINE,
1141
                            8, 3, 1, 1, VAProfileH264ConstrainedBaseline },
1142
    { FF_PROFILE_UNKNOWN }
1143
};
1144
1145
static const VAAPIEncodeType vaapi_encode_type_h264 = {
1146
    .profiles              = vaapi_encode_h264_profiles,
1147
1148
    .flags                 = FLAG_SLICE_CONTROL |
1149
                             FLAG_B_PICTURES |
1150
                             FLAG_B_PICTURE_REFERENCES |
1151
                             FLAG_NON_IDR_KEY_PICTURES,
1152
1153
    .default_quality       = 20,
1154
1155
    .configure             = &vaapi_encode_h264_configure,
1156
1157
    .picture_priv_data_size = sizeof(VAAPIEncodeH264Picture),
1158
1159
    .sequence_params_size  = sizeof(VAEncSequenceParameterBufferH264),
1160
    .init_sequence_params  = &vaapi_encode_h264_init_sequence_params,
1161
1162
    .picture_params_size   = sizeof(VAEncPictureParameterBufferH264),
1163
    .init_picture_params   = &vaapi_encode_h264_init_picture_params,
1164
1165
    .slice_params_size     = sizeof(VAEncSliceParameterBufferH264),
1166
    .init_slice_params     = &vaapi_encode_h264_init_slice_params,
1167
1168
    .sequence_header_type  = VAEncPackedHeaderSequence,
1169
    .write_sequence_header = &vaapi_encode_h264_write_sequence_header,
1170
1171
    .slice_header_type     = VAEncPackedHeaderH264_Slice,
1172
    .write_slice_header    = &vaapi_encode_h264_write_slice_header,
1173
1174
    .write_extra_header    = &vaapi_encode_h264_write_extra_header,
1175
};
1176
1177
static av_cold int vaapi_encode_h264_init(AVCodecContext *avctx)
1178
{
1179
    VAAPIEncodeContext      *ctx = avctx->priv_data;
1180
    VAAPIEncodeH264Context *priv = avctx->priv_data;
1181
1182
    ctx->codec = &vaapi_encode_type_h264;
1183
1184
    if (avctx->profile == FF_PROFILE_UNKNOWN)
1185
        avctx->profile = priv->profile;
1186
    if (avctx->level == FF_LEVEL_UNKNOWN)
1187
        avctx->level = priv->level;
1188
    if (avctx->compression_level == FF_COMPRESSION_DEFAULT)
1189
        avctx->compression_level = priv->quality;
1190
1191
    // Reject unsupported profiles.
1192
    switch (avctx->profile) {
1193
    case FF_PROFILE_H264_BASELINE:
1194
        av_log(avctx, AV_LOG_WARNING, "H.264 baseline profile is not "
1195
               "supported, using constrained baseline profile instead.\n");
1196
        avctx->profile = FF_PROFILE_H264_CONSTRAINED_BASELINE;
1197
        break;
1198
    case FF_PROFILE_H264_EXTENDED:
1199
        av_log(avctx, AV_LOG_ERROR, "H.264 extended profile "
1200
               "is not supported.\n");
1201
        return AVERROR_PATCHWELCOME;
1202
    case FF_PROFILE_H264_HIGH_10:
1203
    case FF_PROFILE_H264_HIGH_10_INTRA:
1204
        av_log(avctx, AV_LOG_ERROR, "H.264 10-bit profiles "
1205
               "are not supported.\n");
1206
        return AVERROR_PATCHWELCOME;
1207
    case FF_PROFILE_H264_HIGH_422:
1208
    case FF_PROFILE_H264_HIGH_422_INTRA:
1209
    case FF_PROFILE_H264_HIGH_444:
1210
    case FF_PROFILE_H264_HIGH_444_PREDICTIVE:
1211
    case FF_PROFILE_H264_HIGH_444_INTRA:
1212
    case FF_PROFILE_H264_CAVLC_444:
1213
        av_log(avctx, AV_LOG_ERROR, "H.264 non-4:2:0 profiles "
1214
               "are not supported.\n");
1215
        return AVERROR_PATCHWELCOME;
1216
    }
1217
1218
    if (avctx->level != FF_LEVEL_UNKNOWN && avctx->level & ~0xff) {
1219
        av_log(avctx, AV_LOG_ERROR, "Invalid level %d: must fit "
1220
               "in 8-bit unsigned integer.\n", avctx->level);
1221
        return AVERROR(EINVAL);
1222
    }
1223
1224
    ctx->desired_packed_headers =
1225
        VA_ENC_PACKED_HEADER_SEQUENCE | // SPS and PPS.
1226
        VA_ENC_PACKED_HEADER_SLICE    | // Slice headers.
1227
        VA_ENC_PACKED_HEADER_MISC;      // SEI.
1228
1229
    ctx->surface_width  = FFALIGN(avctx->width,  16);
1230
    ctx->surface_height = FFALIGN(avctx->height, 16);
1231
1232
    ctx->slice_block_height = ctx->slice_block_width = 16;
1233
1234
    if (priv->qp > 0)
1235
        ctx->explicit_qp = priv->qp;
1236
1237
    return ff_vaapi_encode_init(avctx);
1238
}
1239
1240
static av_cold int vaapi_encode_h264_close(AVCodecContext *avctx)
1241
{
1242
    VAAPIEncodeH264Context *priv = avctx->priv_data;
1243
1244
    ff_cbs_fragment_free(&priv->current_access_unit);
1245
    ff_cbs_close(&priv->cbc);
1246
    av_freep(&priv->sei_identifier_string);
1247
1248
    return ff_vaapi_encode_close(avctx);
1249
}
1250
1251
#define OFFSET(x) offsetof(VAAPIEncodeH264Context, x)
1252
#define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
1253
static const AVOption vaapi_encode_h264_options[] = {
1254
    VAAPI_ENCODE_COMMON_OPTIONS,
1255
    VAAPI_ENCODE_RC_OPTIONS,
1256
1257
    { "qp", "Constant QP (for P-frames; scaled by qfactor/qoffset for I/B)",
1258
      OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 52, FLAGS },
1259
    { "quality", "Set encode quality (trades off against speed, higher is faster)",
1260
      OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, FLAGS },
1261
    { "coder", "Entropy coder type",
1262
      OFFSET(coder), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, FLAGS, "coder" },
1263
        { "cavlc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS, "coder" },
1264
        { "cabac", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, FLAGS, "coder" },
1265
        { "vlc",   NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS, "coder" },
1266
        { "ac",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, FLAGS, "coder" },
1267
1268
    { "aud", "Include AUD",
1269
      OFFSET(aud), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
1270
1271
    { "sei", "Set SEI to include",
1272
      OFFSET(sei), AV_OPT_TYPE_FLAGS,
1273
      { .i64 = SEI_IDENTIFIER | SEI_TIMING | SEI_RECOVERY_POINT },
1274
      0, INT_MAX, FLAGS, "sei" },
1275
    { "identifier", "Include encoder version identifier",
1276
      0, AV_OPT_TYPE_CONST, { .i64 = SEI_IDENTIFIER },
1277
      INT_MIN, INT_MAX, FLAGS, "sei" },
1278
    { "timing", "Include timing parameters (buffering_period and pic_timing)",
1279
      0, AV_OPT_TYPE_CONST, { .i64 = SEI_TIMING },
1280
      INT_MIN, INT_MAX, FLAGS, "sei" },
1281
    { "recovery_point", "Include recovery points where appropriate",
1282
      0, AV_OPT_TYPE_CONST, { .i64 = SEI_RECOVERY_POINT },
1283
      INT_MIN, INT_MAX, FLAGS, "sei" },
1284
1285
    { "profile", "Set profile (profile_idc and constraint_set*_flag)",
1286
      OFFSET(profile), AV_OPT_TYPE_INT,
1287
      { .i64 = FF_PROFILE_UNKNOWN }, FF_PROFILE_UNKNOWN, 0xffff, FLAGS, "profile" },
1288
1289
#define PROFILE(name, value)  name, NULL, 0, AV_OPT_TYPE_CONST, \
1290
      { .i64 = value }, 0, 0, FLAGS, "profile"
1291
    { PROFILE("constrained_baseline", FF_PROFILE_H264_CONSTRAINED_BASELINE) },
1292
    { PROFILE("main",                 FF_PROFILE_H264_MAIN) },
1293
    { PROFILE("high",                 FF_PROFILE_H264_HIGH) },
1294
#undef PROFILE
1295
1296
    { "level", "Set level (level_idc)",
1297
      OFFSET(level), AV_OPT_TYPE_INT,
1298
      { .i64 = FF_LEVEL_UNKNOWN }, FF_LEVEL_UNKNOWN, 0xff, FLAGS, "level" },
1299
1300
#define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
1301
      { .i64 = value }, 0, 0, FLAGS, "level"
1302
    { LEVEL("1",   10) },
1303
    { LEVEL("1.1", 11) },
1304
    { LEVEL("1.2", 12) },
1305
    { LEVEL("1.3", 13) },
1306
    { LEVEL("2",   20) },
1307
    { LEVEL("2.1", 21) },
1308
    { LEVEL("2.2", 22) },
1309
    { LEVEL("3",   30) },
1310
    { LEVEL("3.1", 31) },
1311
    { LEVEL("3.2", 32) },
1312
    { LEVEL("4",   40) },
1313
    { LEVEL("4.1", 41) },
1314
    { LEVEL("4.2", 42) },
1315
    { LEVEL("5",   50) },
1316
    { LEVEL("5.1", 51) },
1317
    { LEVEL("5.2", 52) },
1318
    { LEVEL("6",   60) },
1319
    { LEVEL("6.1", 61) },
1320
    { LEVEL("6.2", 62) },
1321
#undef LEVEL
1322
1323
    { NULL },
1324
};
1325
1326
static const AVCodecDefault vaapi_encode_h264_defaults[] = {
1327
    { "b",              "0"   },
1328
    { "bf",             "2"   },
1329
    { "g",              "120" },
1330
    { "i_qfactor",      "1"   },
1331
    { "i_qoffset",      "0"   },
1332
    { "b_qfactor",      "6/5" },
1333
    { "b_qoffset",      "0"   },
1334
    { "qmin",           "-1"  },
1335
    { "qmax",           "-1"  },
1336
    { NULL },
1337
};
1338
1339
static const AVClass vaapi_encode_h264_class = {
1340
    .class_name = "h264_vaapi",
1341
    .item_name  = av_default_item_name,
1342
    .option     = vaapi_encode_h264_options,
1343
    .version    = LIBAVUTIL_VERSION_INT,
1344
};
1345
1346
AVCodec ff_h264_vaapi_encoder = {
1347
    .name           = "h264_vaapi",
1348
    .long_name      = NULL_IF_CONFIG_SMALL("H.264/AVC (VAAPI)"),
1349
    .type           = AVMEDIA_TYPE_VIDEO,
1350
    .id             = AV_CODEC_ID_H264,
1351
    .priv_data_size = sizeof(VAAPIEncodeH264Context),
1352
    .init           = &vaapi_encode_h264_init,
1353
    .receive_packet = &ff_vaapi_encode_receive_packet,
1354
    .close          = &vaapi_encode_h264_close,
1355
    .priv_class     = &vaapi_encode_h264_class,
1356
    .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE,
1357
    .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,
1358
    .defaults       = vaapi_encode_h264_defaults,
1359
    .pix_fmts = (const enum AVPixelFormat[]) {
1360
        AV_PIX_FMT_VAAPI,
1361
        AV_PIX_FMT_NONE,
1362
    },
1363
    .hw_configs     = ff_vaapi_encode_hw_configs,
1364
    .wrapper_name   = "vaapi",
1365
};