2 * gstvaapiencoder_h264.c - H.264 encoder
4 * Copyright (C) 2012-2014 Intel Corporation
5 * Author: Wind Yuan <feng.yuan@intel.com>
6 * Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public License
10 * as published by the Free Software Foundation; either version 2.1
11 * of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free
20 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 * Boston, MA 02110-1301 USA
26 #include <va/va_enc_h264.h>
27 #include <gst/base/gstbitwriter.h>
28 #include <gst/codecparsers/gsth264parser.h>
29 #include "gstvaapicompat.h"
30 #include "gstvaapiencoder_priv.h"
31 #include "gstvaapiencoder_h264.h"
32 #include "gstvaapiutils_h264.h"
33 #include "gstvaapiutils_h264_priv.h"
34 #include "gstvaapicodedbufferproxy_priv.h"
35 #include "gstvaapisurface.h"
38 #include "gstvaapidebug.h"
40 /* Define the maximum number of views supported */
41 #define MAX_NUM_VIEWS 2
43 /* Define the maximum IDR period */
44 #define MAX_IDR_PERIOD 512
46 /* Default CPB length (in milliseconds) */
47 #define DEFAULT_CPB_LENGTH 1500
49 /* Scale factor for CPB size (HRD cpb_size_scale: min = 4) */
52 /* Scale factor for bitrate (HRD bit_rate_scale: min = 6) */
55 /* Define default rate control mode ("constant-qp") */
56 #define DEFAULT_RATECONTROL GST_VAAPI_RATECONTROL_CQP
58 /* Supported set of VA rate controls, within this implementation */
59 #define SUPPORTED_RATECONTROLS \
60 (GST_VAAPI_RATECONTROL_MASK (CQP) | \
61 GST_VAAPI_RATECONTROL_MASK (CBR) | \
62 GST_VAAPI_RATECONTROL_MASK (VBR) | \
63 GST_VAAPI_RATECONTROL_MASK (VBR_CONSTRAINED))
65 /* Supported set of tuning options, within this implementation */
66 #define SUPPORTED_TUNE_OPTIONS \
67 (GST_VAAPI_ENCODER_TUNE_MASK (NONE) | \
68 GST_VAAPI_ENCODER_TUNE_MASK (HIGH_COMPRESSION))
70 /* Supported set of VA packed headers, within this implementation */
71 #define SUPPORTED_PACKED_HEADERS \
72 (VA_ENC_PACKED_HEADER_SEQUENCE | \
73 VA_ENC_PACKED_HEADER_PICTURE | \
74 VA_ENC_PACKED_HEADER_SLICE | \
75 VA_ENC_PACKED_HEADER_RAW_DATA)
77 #define GST_H264_NAL_REF_IDC_NONE 0
78 #define GST_H264_NAL_REF_IDC_LOW 1
79 #define GST_H264_NAL_REF_IDC_MEDIUM 2
80 #define GST_H264_NAL_REF_IDC_HIGH 3
84 GstVaapiSurfaceProxy *pic;
87 } GstVaapiEncoderH264Ref;
91 GST_VAAPI_ENC_H264_REORD_NONE = 0,
92 GST_VAAPI_ENC_H264_REORD_DUMP_FRAMES = 1,
93 GST_VAAPI_ENC_H264_REORD_WAIT_FRAMES = 2
94 } GstVaapiEncH264ReorderState;
96 typedef struct _GstVaapiH264ViewRefPool
100 guint max_reflist0_count;
101 guint max_reflist1_count;
102 } GstVaapiH264ViewRefPool;
104 typedef struct _GstVaapiH264ViewReorderPool
106 GQueue reorder_frame_list;
110 guint cur_present_index;
111 } GstVaapiH264ViewReorderPool;
113 static inline gboolean
114 _poc_greater_than (guint poc1, guint poc2, guint max_poc)
116 return (((poc1 - poc2) & (max_poc - 1)) < max_poc / 2);
119 /* Get slice_type value for H.264 specification */
121 h264_get_slice_type (GstVaapiPictureType type)
124 case GST_VAAPI_PICTURE_TYPE_I:
125 return GST_H264_I_SLICE;
126 case GST_VAAPI_PICTURE_TYPE_P:
127 return GST_H264_P_SLICE;
128 case GST_VAAPI_PICTURE_TYPE_B:
129 return GST_H264_B_SLICE;
136 /* Get log2_max_frame_num value for H.264 specification */
138 h264_get_log2_max_frame_num (guint num)
150 /* must be greater than 4 */
154 /* Determines the cpbBrNalFactor based on the supplied profile */
156 h264_get_cpb_nal_factor (GstVaapiProfile profile)
162 case GST_VAAPI_PROFILE_H264_HIGH:
165 case GST_VAAPI_PROFILE_H264_HIGH10:
168 case GST_VAAPI_PROFILE_H264_HIGH_422:
169 case GST_VAAPI_PROFILE_H264_HIGH_444:
172 case GST_VAAPI_PROFILE_H264_MULTIVIEW_HIGH:
173 case GST_VAAPI_PROFILE_H264_STEREO_HIGH:
174 f = 1500; /* H.10.2.1 (r) */
183 /* ------------------------------------------------------------------------- */
184 /* --- H.264 Bitstream Writer --- */
185 /* ------------------------------------------------------------------------- */
187 #define WRITE_UINT32(bs, val, nbits) do { \
188 if (!gst_bit_writer_put_bits_uint32 (bs, val, nbits)) { \
189 GST_WARNING ("failed to write uint32, nbits: %d", nbits); \
194 #define WRITE_UE(bs, val) do { \
195 if (!bs_write_ue (bs, val)) { \
196 GST_WARNING ("failed to write ue(v)"); \
201 #define WRITE_SE(bs, val) do { \
202 if (!bs_write_se (bs, val)) { \
203 GST_WARNING ("failed to write se(v)"); \
208 /* Write an unsigned integer Exp-Golomb-coded syntax element. i.e. ue(v) */
210 bs_write_ue (GstBitWriter * bs, guint32 value)
212 guint32 size_in_bits = 0;
213 guint32 tmp_value = ++value;
220 && !gst_bit_writer_put_bits_uint32 (bs, 0, size_in_bits - 1))
222 if (!gst_bit_writer_put_bits_uint32 (bs, value, size_in_bits))
227 /* Write a signed integer Exp-Golomb-coded syntax element. i.e. se(v) */
229 bs_write_se (GstBitWriter * bs, gint32 value)
234 new_val = -(value << 1);
236 new_val = (value << 1) - 1;
238 if (!bs_write_ue (bs, new_val))
243 /* Write the NAL unit header */
245 bs_write_nal_header (GstBitWriter * bs, guint32 nal_ref_idc,
246 guint32 nal_unit_type)
248 WRITE_UINT32 (bs, 0, 1);
249 WRITE_UINT32 (bs, nal_ref_idc, 2);
250 WRITE_UINT32 (bs, nal_unit_type, 5);
256 GST_WARNING ("failed to write NAL unit header");
261 /* Write the MVC NAL unit header extension */
263 bs_write_nal_header_mvc_extension (GstBitWriter * bs,
264 GstVaapiEncPicture * picture, guint32 view_id)
266 guint32 svc_extension_flag = 0;
267 guint32 non_idr_flag = 1;
268 guint32 priority_id = 0;
269 guint32 temporal_id = 0;
270 guint32 anchor_pic_flag = 0;
271 guint32 inter_view_flag = 0;
273 if (GST_VAAPI_ENC_PICTURE_IS_IDR (picture))
276 if (picture->type == GST_VAAPI_PICTURE_TYPE_I)
278 /* svc_extension_flag == 0 for mvc stream */
279 WRITE_UINT32 (bs, svc_extension_flag, 1);
281 WRITE_UINT32 (bs, non_idr_flag, 1);
282 WRITE_UINT32 (bs, priority_id, 6);
283 WRITE_UINT32 (bs, view_id, 10);
284 WRITE_UINT32 (bs, temporal_id, 3);
285 WRITE_UINT32 (bs, anchor_pic_flag, 1);
286 WRITE_UINT32 (bs, inter_view_flag, 1);
287 WRITE_UINT32 (bs, 1, 1);
294 GST_WARNING ("failed to write NAL unit header");
299 /* Write the NAL unit trailing bits */
301 bs_write_trailing_bits (GstBitWriter * bs)
303 if (!gst_bit_writer_put_bits_uint32 (bs, 1, 1))
305 gst_bit_writer_align_bytes_unchecked (bs, 0);
311 GST_WARNING ("failed to write NAL unit trailing bits");
316 /* Write an SPS NAL unit */
318 bs_write_sps_data (GstBitWriter * bs,
319 const VAEncSequenceParameterBufferH264 * seq_param, GstVaapiProfile profile,
320 const VAEncMiscParameterHRD * hrd_params)
323 guint32 constraint_set0_flag, constraint_set1_flag;
324 guint32 constraint_set2_flag, constraint_set3_flag;
325 guint32 gaps_in_frame_num_value_allowed_flag = 0; // ??
326 gboolean nal_hrd_parameters_present_flag;
328 guint32 b_qpprime_y_zero_transform_bypass = 0;
329 guint32 residual_color_transform_flag = 0;
330 guint32 pic_height_in_map_units =
331 (seq_param->seq_fields.bits.frame_mbs_only_flag ?
332 seq_param->picture_height_in_mbs : seq_param->picture_height_in_mbs / 2);
333 guint32 mb_adaptive_frame_field =
334 !seq_param->seq_fields.bits.frame_mbs_only_flag;
337 profile_idc = gst_vaapi_utils_h264_get_profile_idc (profile);
338 constraint_set0_flag = /* A.2.1 (baseline profile constraints) */
339 profile == GST_VAAPI_PROFILE_H264_BASELINE ||
340 profile == GST_VAAPI_PROFILE_H264_CONSTRAINED_BASELINE;
341 constraint_set1_flag = /* A.2.2 (main profile constraints) */
342 profile == GST_VAAPI_PROFILE_H264_MAIN ||
343 profile == GST_VAAPI_PROFILE_H264_CONSTRAINED_BASELINE;
344 constraint_set2_flag = 0;
345 constraint_set3_flag = 0;
348 WRITE_UINT32 (bs, profile_idc, 8);
349 /* constraint_set0_flag */
350 WRITE_UINT32 (bs, constraint_set0_flag, 1);
351 /* constraint_set1_flag */
352 WRITE_UINT32 (bs, constraint_set1_flag, 1);
353 /* constraint_set2_flag */
354 WRITE_UINT32 (bs, constraint_set2_flag, 1);
355 /* constraint_set3_flag */
356 WRITE_UINT32 (bs, constraint_set3_flag, 1);
357 /* reserved_zero_4bits */
358 WRITE_UINT32 (bs, 0, 4);
360 WRITE_UINT32 (bs, seq_param->level_idc, 8);
361 /* seq_parameter_set_id */
362 WRITE_UE (bs, seq_param->seq_parameter_set_id);
364 if (profile == GST_VAAPI_PROFILE_H264_HIGH ||
365 profile == GST_VAAPI_PROFILE_H264_MULTIVIEW_HIGH ||
366 profile == GST_VAAPI_PROFILE_H264_STEREO_HIGH) {
367 /* for high profile */
368 /* chroma_format_idc = 1, 4:2:0 */
369 WRITE_UE (bs, seq_param->seq_fields.bits.chroma_format_idc);
370 if (3 == seq_param->seq_fields.bits.chroma_format_idc) {
371 WRITE_UINT32 (bs, residual_color_transform_flag, 1);
373 /* bit_depth_luma_minus8 */
374 WRITE_UE (bs, seq_param->bit_depth_luma_minus8);
375 /* bit_depth_chroma_minus8 */
376 WRITE_UE (bs, seq_param->bit_depth_chroma_minus8);
377 /* b_qpprime_y_zero_transform_bypass */
378 WRITE_UINT32 (bs, b_qpprime_y_zero_transform_bypass, 1);
380 /* seq_scaling_matrix_present_flag */
381 g_assert (seq_param->seq_fields.bits.seq_scaling_matrix_present_flag == 0);
383 seq_param->seq_fields.bits.seq_scaling_matrix_present_flag, 1);
386 if (seq_param->seq_fields.bits.seq_scaling_matrix_present_flag) {
388 i < (seq_param->seq_fields.bits.chroma_format_idc != 3 ? 8 : 12);
390 gst_bit_writer_put_bits_uint8 (bs,
391 seq_param->seq_fields.bits.seq_scaling_list_present_flag, 1);
392 if (seq_param->seq_fields.bits.seq_scaling_list_present_flag) {
394 /* FIXME, need write scaling list if seq_scaling_matrix_present_flag ==1 */
401 /* log2_max_frame_num_minus4 */
402 WRITE_UE (bs, seq_param->seq_fields.bits.log2_max_frame_num_minus4);
403 /* pic_order_cnt_type */
404 WRITE_UE (bs, seq_param->seq_fields.bits.pic_order_cnt_type);
406 if (seq_param->seq_fields.bits.pic_order_cnt_type == 0) {
407 /* log2_max_pic_order_cnt_lsb_minus4 */
408 WRITE_UE (bs, seq_param->seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4);
409 } else if (seq_param->seq_fields.bits.pic_order_cnt_type == 1) {
410 g_assert (0 && "only POC type 0 is supported");
412 seq_param->seq_fields.bits.delta_pic_order_always_zero_flag, 1);
413 WRITE_SE (bs, seq_param->offset_for_non_ref_pic);
414 WRITE_SE (bs, seq_param->offset_for_top_to_bottom_field);
415 WRITE_UE (bs, seq_param->num_ref_frames_in_pic_order_cnt_cycle);
416 for (i = 0; i < seq_param->num_ref_frames_in_pic_order_cnt_cycle; i++) {
417 WRITE_SE (bs, seq_param->offset_for_ref_frame[i]);
422 WRITE_UE (bs, seq_param->max_num_ref_frames);
423 /* gaps_in_frame_num_value_allowed_flag */
424 WRITE_UINT32 (bs, gaps_in_frame_num_value_allowed_flag, 1);
426 /* pic_width_in_mbs_minus1 */
427 WRITE_UE (bs, seq_param->picture_width_in_mbs - 1);
428 /* pic_height_in_map_units_minus1 */
429 WRITE_UE (bs, pic_height_in_map_units - 1);
430 /* frame_mbs_only_flag */
431 WRITE_UINT32 (bs, seq_param->seq_fields.bits.frame_mbs_only_flag, 1);
433 if (!seq_param->seq_fields.bits.frame_mbs_only_flag) { //ONLY mbs
434 g_assert (0 && "only progressive frames encoding is supported");
435 WRITE_UINT32 (bs, mb_adaptive_frame_field, 1);
438 /* direct_8x8_inference_flag */
439 WRITE_UINT32 (bs, 0, 1);
440 /* frame_cropping_flag */
441 WRITE_UINT32 (bs, seq_param->frame_cropping_flag, 1);
443 if (seq_param->frame_cropping_flag) {
444 /* frame_crop_left_offset */
445 WRITE_UE (bs, seq_param->frame_crop_left_offset);
446 /* frame_crop_right_offset */
447 WRITE_UE (bs, seq_param->frame_crop_right_offset);
448 /* frame_crop_top_offset */
449 WRITE_UE (bs, seq_param->frame_crop_top_offset);
450 /* frame_crop_bottom_offset */
451 WRITE_UE (bs, seq_param->frame_crop_bottom_offset);
454 /* vui_parameters_present_flag */
455 WRITE_UINT32 (bs, seq_param->vui_parameters_present_flag, 1);
456 if (seq_param->vui_parameters_present_flag) {
457 /* aspect_ratio_info_present_flag */
459 seq_param->vui_fields.bits.aspect_ratio_info_present_flag, 1);
460 if (seq_param->vui_fields.bits.aspect_ratio_info_present_flag) {
461 WRITE_UINT32 (bs, seq_param->aspect_ratio_idc, 8);
462 if (seq_param->aspect_ratio_idc == 0xFF) {
463 WRITE_UINT32 (bs, seq_param->sar_width, 16);
464 WRITE_UINT32 (bs, seq_param->sar_height, 16);
468 /* overscan_info_present_flag */
469 WRITE_UINT32 (bs, 0, 1);
470 /* video_signal_type_present_flag */
471 WRITE_UINT32 (bs, 0, 1);
472 /* chroma_loc_info_present_flag */
473 WRITE_UINT32 (bs, 0, 1);
475 /* timing_info_present_flag */
476 WRITE_UINT32 (bs, seq_param->vui_fields.bits.timing_info_present_flag, 1);
477 if (seq_param->vui_fields.bits.timing_info_present_flag) {
478 WRITE_UINT32 (bs, seq_param->num_units_in_tick, 32);
479 WRITE_UINT32 (bs, seq_param->time_scale, 32);
480 WRITE_UINT32 (bs, 1, 1); /* fixed_frame_rate_flag */
483 /* nal_hrd_parameters_present_flag */
484 nal_hrd_parameters_present_flag = seq_param->bits_per_second > 0;
485 nal_hrd_parameters_present_flag = FALSE; /* XXX: disabled for now */
486 WRITE_UINT32 (bs, nal_hrd_parameters_present_flag, 1);
487 if (nal_hrd_parameters_present_flag) {
491 WRITE_UINT32 (bs, SX_BITRATE - 6, 4); /* bit_rate_scale */
492 WRITE_UINT32 (bs, SX_CPB_SIZE - 4, 4); /* cpb_size_scale */
494 for (i = 0; i < 1; ++i) {
495 /* bit_rate_value_minus1[0] */
496 WRITE_UE (bs, (seq_param->bits_per_second >> SX_BITRATE) - 1);
497 /* cpb_size_value_minus1[0] */
498 WRITE_UE (bs, (hrd_params->buffer_size >> SX_CPB_SIZE) - 1);
500 WRITE_UINT32 (bs, 1, 1);
502 /* initial_cpb_removal_delay_length_minus1 */
503 WRITE_UINT32 (bs, 23, 5);
504 /* cpb_removal_delay_length_minus1 */
505 WRITE_UINT32 (bs, 23, 5);
506 /* dpb_output_delay_length_minus1 */
507 WRITE_UINT32 (bs, 23, 5);
508 /* time_offset_length */
509 WRITE_UINT32 (bs, 23, 5);
512 /* vcl_hrd_parameters_present_flag */
513 WRITE_UINT32 (bs, 0, 1);
515 if (nal_hrd_parameters_present_flag
516 || 0 /*vcl_hrd_parameters_present_flag */ ) {
517 /* low_delay_hrd_flag */
518 WRITE_UINT32 (bs, 0, 1);
520 /* pic_struct_present_flag */
521 WRITE_UINT32 (bs, 0, 1);
522 /* bs_restriction_flag */
523 WRITE_UINT32 (bs, 0, 1);
530 GST_WARNING ("failed to write SPS NAL unit");
536 bs_write_sps (GstBitWriter * bs,
537 const VAEncSequenceParameterBufferH264 * seq_param, GstVaapiProfile profile,
538 const VAEncMiscParameterHRD * hrd_params)
540 if (!bs_write_sps_data (bs, seq_param, profile, hrd_params))
543 /* rbsp_trailing_bits */
544 bs_write_trailing_bits (bs);
550 bs_write_subset_sps (GstBitWriter * bs,
551 const VAEncSequenceParameterBufferH264 * seq_param, GstVaapiProfile profile,
552 guint num_views, const VAEncMiscParameterHRD * hrd_params)
556 if (!bs_write_sps_data (bs, seq_param, profile, hrd_params))
559 if (profile == GST_VAAPI_PROFILE_H264_STEREO_HIGH ||
560 profile == GST_VAAPI_PROFILE_H264_MULTIVIEW_HIGH) {
561 guint32 num_views_minus1, num_level_values_signalled_minus1;
563 num_views_minus1 = num_views - 1;
564 g_assert (num_views_minus1 < 1024);
566 /* bit equal to one */
567 WRITE_UINT32 (bs, 1, 1);
569 WRITE_UE (bs, num_views_minus1);
571 for (i = 0; i <= num_views_minus1; i++)
574 for (i = 1; i <= num_views_minus1; i++) {
575 guint32 num_anchor_refs_l0 = 0;
576 WRITE_UE (bs, num_anchor_refs_l0);
577 for (j = 0; j < num_anchor_refs_l0; j++)
580 guint32 num_anchor_refs_l1 = 0;
581 WRITE_UE (bs, num_anchor_refs_l1);
582 for (j = 0; j < num_anchor_refs_l1; j++)
586 for (i = 1; i <= num_views_minus1; i++) {
587 guint32 num_non_anchor_refs_l0 = 0;
588 WRITE_UE (bs, num_non_anchor_refs_l0);
589 for (j = 0; j < num_non_anchor_refs_l0; j++)
592 guint32 num_non_anchor_refs_l1 = 0;
593 WRITE_UE (bs, num_non_anchor_refs_l1);
594 for (j = 0; j < num_non_anchor_refs_l1; j++)
598 /* num level values signalled minus1 */
599 num_level_values_signalled_minus1 = 0;
600 g_assert (num_level_values_signalled_minus1 < 64);
601 WRITE_UE (bs, num_level_values_signalled_minus1);
603 for (i = 0; i <= num_level_values_signalled_minus1; i++) {
604 guint16 num_applicable_ops_minus1 = 0;
605 g_assert (num_applicable_ops_minus1 < 1024);
607 WRITE_UINT32 (bs, seq_param->level_idc, 8);
608 WRITE_UE (bs, num_applicable_ops_minus1);
610 for (j = 0; j <= num_applicable_ops_minus1; j++) {
611 guint8 temporal_id = 0;
612 guint16 num_target_views_minus1 = 1;
614 WRITE_UINT32 (bs, temporal_id, 3);
615 WRITE_UE (bs, num_target_views_minus1);
617 for (k = 0; k <= num_target_views_minus1; k++)
620 WRITE_UE (bs, num_views_minus1);
624 /* mvc_vui_parameters_present_flag */
625 WRITE_UINT32 (bs, 0, 1);
628 /* additional_extension2_flag */
629 WRITE_UINT32 (bs, 0, 1);
631 /* rbsp_trailing_bits */
632 bs_write_trailing_bits (bs);
638 GST_WARNING ("failed to write subset SPS NAL unit");
644 /* Write a PPS NAL unit */
646 bs_write_pps (GstBitWriter * bs,
647 const VAEncPictureParameterBufferH264 * pic_param, GstVaapiProfile profile)
649 guint32 num_slice_groups_minus1 = 0;
650 guint32 pic_init_qs_minus26 = 0;
651 guint32 redundant_pic_cnt_present_flag = 0;
653 /* pic_parameter_set_id */
654 WRITE_UE (bs, pic_param->pic_parameter_set_id);
655 /* seq_parameter_set_id */
656 WRITE_UE (bs, pic_param->seq_parameter_set_id);
657 /* entropy_coding_mode_flag */
658 WRITE_UINT32 (bs, pic_param->pic_fields.bits.entropy_coding_mode_flag, 1);
659 /* pic_order_present_flag */
660 WRITE_UINT32 (bs, pic_param->pic_fields.bits.pic_order_present_flag, 1);
662 WRITE_UE (bs, num_slice_groups_minus1);
664 if (num_slice_groups_minus1 > 0) {
665 /*FIXME*/ g_assert (0 && "unsupported arbitrary slice ordering (ASO)");
667 WRITE_UE (bs, pic_param->num_ref_idx_l0_active_minus1);
668 WRITE_UE (bs, pic_param->num_ref_idx_l1_active_minus1);
669 WRITE_UINT32 (bs, pic_param->pic_fields.bits.weighted_pred_flag, 1);
670 WRITE_UINT32 (bs, pic_param->pic_fields.bits.weighted_bipred_idc, 2);
671 /* pic_init_qp_minus26 */
672 WRITE_SE (bs, pic_param->pic_init_qp - 26);
673 /* pic_init_qs_minus26 */
674 WRITE_SE (bs, pic_init_qs_minus26);
675 /* chroma_qp_index_offset */
676 WRITE_SE (bs, pic_param->chroma_qp_index_offset);
679 pic_param->pic_fields.bits.deblocking_filter_control_present_flag, 1);
680 WRITE_UINT32 (bs, pic_param->pic_fields.bits.constrained_intra_pred_flag, 1);
681 WRITE_UINT32 (bs, redundant_pic_cnt_present_flag, 1);
684 if (profile == GST_VAAPI_PROFILE_H264_HIGH) {
685 WRITE_UINT32 (bs, pic_param->pic_fields.bits.transform_8x8_mode_flag, 1);
687 pic_param->pic_fields.bits.pic_scaling_matrix_present_flag, 1);
688 if (pic_param->pic_fields.bits.pic_scaling_matrix_present_flag) {
689 g_assert (0 && "unsupported scaling lists");
693 (6+(-( (chroma_format_idc ! = 3) ? 2 : 6) * -pic_param->pic_fields.bits.transform_8x8_mode_flag));
695 gst_bit_writer_put_bits_uint8(bs, pic_param->pic_fields.bits.pic_scaling_list_present_flag, 1);
699 WRITE_SE (bs, pic_param->second_chroma_qp_index_offset);
702 /* rbsp_trailing_bits */
703 bs_write_trailing_bits (bs);
709 GST_WARNING ("failed to write PPS NAL unit");
714 /* ------------------------------------------------------------------------- */
715 /* --- H.264 Encoder --- */
716 /* ------------------------------------------------------------------------- */
718 #define GST_VAAPI_ENCODER_H264_CAST(encoder) \
719 ((GstVaapiEncoderH264 *)(encoder))
721 struct _GstVaapiEncoderH264
723 GstVaapiEncoder parent_instance;
725 GstVaapiProfile profile;
726 GstVaapiLevelH264 level;
728 guint8 max_profile_idc;
729 guint8 hw_max_profile_idc;
740 GstClockTime cts_offset;
741 gboolean config_changed;
744 guint32 max_frame_num;
745 guint32 log2_max_frame_num;
746 guint32 max_pic_order_cnt;
747 guint32 log2_max_pic_order_cnt;
749 guint8 pic_order_cnt_type;
750 guint8 delta_pic_order_always_zero_flag;
753 GstBuffer *subset_sps_data;
756 guint bitrate_bits; // bitrate (bits)
757 guint cpb_length; // length of CPB buffer (ms)
758 guint cpb_length_bits; // length of CPB buffer (bits)
764 GstVaapiH264ViewRefPool ref_pools[MAX_NUM_VIEWS];
765 GstVaapiH264ViewReorderPool reorder_pools[MAX_NUM_VIEWS];
768 /* Write a Slice NAL unit */
770 bs_write_slice (GstBitWriter * bs,
771 const VAEncSliceParameterBufferH264 * slice_param,
772 GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture)
774 const VAEncPictureParameterBufferH264 *const pic_param = picture->param;
775 guint32 field_pic_flag = 0;
776 guint32 ref_pic_list_modification_flag_l0 = 0;
777 guint32 ref_pic_list_modification_flag_l1 = 0;
778 guint32 no_output_of_prior_pics_flag = 0;
779 guint32 long_term_reference_flag = 0;
780 guint32 adaptive_ref_pic_marking_mode_flag = 0;
782 /* first_mb_in_slice */
783 WRITE_UE (bs, slice_param->macroblock_address);
785 WRITE_UE (bs, slice_param->slice_type);
786 /* pic_parameter_set_id */
787 WRITE_UE (bs, slice_param->pic_parameter_set_id);
789 WRITE_UINT32 (bs, picture->frame_num, encoder->log2_max_frame_num);
791 /* XXX: only frames (i.e. non-interlaced) are supported for now */
792 /* frame_mbs_only_flag == 0 */
795 if (GST_VAAPI_ENC_PICTURE_IS_IDR (picture))
796 WRITE_UE (bs, slice_param->idr_pic_id);
798 /* XXX: only POC type 0 is supported */
799 if (!encoder->pic_order_cnt_type) {
800 WRITE_UINT32 (bs, slice_param->pic_order_cnt_lsb,
801 encoder->log2_max_pic_order_cnt);
802 /* bottom_field_pic_order_in_frame_present_flag is FALSE */
803 if (pic_param->pic_fields.bits.pic_order_present_flag && !field_pic_flag)
804 WRITE_SE (bs, slice_param->delta_pic_order_cnt_bottom);
805 } else if (encoder->pic_order_cnt_type == 1 &&
806 !encoder->delta_pic_order_always_zero_flag) {
807 WRITE_SE (bs, slice_param->delta_pic_order_cnt[0]);
808 if (pic_param->pic_fields.bits.pic_order_present_flag && !field_pic_flag)
809 WRITE_SE (bs, slice_param->delta_pic_order_cnt[1]);
811 /* redundant_pic_cnt_present_flag is FALSE, no redundant coded pictures */
813 /* only works for B-frames */
814 if (slice_param->slice_type == 1)
815 WRITE_UINT32 (bs, slice_param->direct_spatial_mv_pred_flag, 1);
817 /* not supporting SP slices */
818 if (slice_param->slice_type == 0 || slice_param->slice_type == 1) {
819 WRITE_UINT32 (bs, slice_param->num_ref_idx_active_override_flag, 1);
820 if (slice_param->num_ref_idx_active_override_flag) {
821 WRITE_UE (bs, slice_param->num_ref_idx_l0_active_minus1);
822 if (slice_param->slice_type == 1)
823 WRITE_UE (bs, slice_param->num_ref_idx_l1_active_minus1);
826 /* XXX: not supporting custom reference picture list modifications */
827 if ((slice_param->slice_type != 2) && (slice_param->slice_type != 4))
828 WRITE_UINT32 (bs, ref_pic_list_modification_flag_l0, 1);
829 if (slice_param->slice_type == 1)
830 WRITE_UINT32 (bs, ref_pic_list_modification_flag_l1, 1);
832 /* we have: weighted_pred_flag == FALSE and */
833 /* : weighted_bipred_idc == FALSE */
834 if ((pic_param->pic_fields.bits.weighted_pred_flag &&
835 (slice_param->slice_type == 0)) ||
836 ((pic_param->pic_fields.bits.weighted_bipred_idc == 1) &&
837 (slice_param->slice_type == 1))) {
838 /* XXXX: add pred_weight_table() */
841 /* dec_ref_pic_marking() */
842 if (slice_param->slice_type == 0 || slice_param->slice_type == 2) {
843 if (GST_VAAPI_ENC_PICTURE_IS_IDR (picture)) {
844 /* no_output_of_prior_pics_flag = 0 */
845 WRITE_UINT32 (bs, no_output_of_prior_pics_flag, 1);
846 /* long_term_reference_flag = 0 */
847 WRITE_UINT32 (bs, long_term_reference_flag, 1);
849 /* only sliding_window reference picture marking mode is supported */
850 /* adpative_ref_pic_marking_mode_flag = 0 */
851 WRITE_UINT32 (bs, adaptive_ref_pic_marking_mode_flag, 1);
856 if (pic_param->pic_fields.bits.entropy_coding_mode_flag &&
857 slice_param->slice_type != 2)
858 WRITE_UE (bs, slice_param->cabac_init_idc);
860 WRITE_SE (bs, slice_param->slice_qp_delta);
862 /* XXX: only supporting I, P and B type slices */
863 /* no sp_for_switch_flag and no slice_qs_delta */
865 if (pic_param->pic_fields.bits.deblocking_filter_control_present_flag) {
866 /* disable_deblocking_filter_idc */
867 WRITE_UE (bs, slice_param->disable_deblocking_filter_idc);
868 if (slice_param->disable_deblocking_filter_idc != 1) {
869 WRITE_SE (bs, slice_param->slice_alpha_c0_offset_div2);
870 WRITE_SE (bs, slice_param->slice_beta_offset_div2);
874 /* XXX: unsupported arbitrary slice ordering (ASO) */
875 /* num_slic_groups_minus1 should be zero */
881 GST_WARNING ("failed to write Slice NAL unit");
887 _check_sps_pps_status (GstVaapiEncoderH264 * encoder,
888 const guint8 * nal, guint32 size)
892 gboolean has_subset_sps;
896 has_subset_sps = !encoder->is_mvc || (encoder->subset_sps_data != NULL);
897 if (encoder->sps_data && encoder->pps_data && has_subset_sps)
900 nal_type = nal[0] & 0x1F;
902 case GST_H264_NAL_SPS:
903 encoder->sps_data = gst_buffer_new_allocate (NULL, size, NULL);
904 ret = gst_buffer_fill (encoder->sps_data, 0, nal, size);
905 g_assert (ret == size);
907 case GST_H264_NAL_SUBSET_SPS:
908 encoder->subset_sps_data = gst_buffer_new_allocate (NULL, size, NULL);
909 ret = gst_buffer_fill (encoder->subset_sps_data, 0, nal, size);
910 g_assert (ret == size);
912 case GST_H264_NAL_PPS:
913 encoder->pps_data = gst_buffer_new_allocate (NULL, size, NULL);
914 ret = gst_buffer_fill (encoder->pps_data, 0, nal, size);
915 g_assert (ret == size);
922 /* Determines the largest supported profile by the underlying hardware */
924 ensure_hw_profile_limits (GstVaapiEncoderH264 * encoder)
926 GstVaapiDisplay *const display = GST_VAAPI_ENCODER_DISPLAY (encoder);
928 guint i, profile_idc, max_profile_idc;
930 if (encoder->hw_max_profile_idc)
933 profiles = gst_vaapi_display_get_encode_profiles (display);
938 for (i = 0; i < profiles->len; i++) {
939 const GstVaapiProfile profile =
940 g_array_index (profiles, GstVaapiProfile, i);
941 profile_idc = gst_vaapi_utils_h264_get_profile_idc (profile);
944 if (max_profile_idc < profile_idc)
945 max_profile_idc = profile_idc;
947 g_array_unref (profiles);
949 encoder->hw_max_profile_idc = max_profile_idc;
953 /* Derives the profile supported by the underlying hardware */
955 ensure_hw_profile (GstVaapiEncoderH264 * encoder)
957 GstVaapiDisplay *const display = GST_VAAPI_ENCODER_DISPLAY (encoder);
958 GstVaapiEntrypoint entrypoint = GST_VAAPI_ENTRYPOINT_SLICE_ENCODE;
959 GstVaapiProfile profile, profiles[4];
960 guint i, num_profiles = 0;
962 profiles[num_profiles++] = encoder->profile;
963 switch (encoder->profile) {
964 case GST_VAAPI_PROFILE_H264_CONSTRAINED_BASELINE:
965 profiles[num_profiles++] = GST_VAAPI_PROFILE_H264_BASELINE;
966 profiles[num_profiles++] = GST_VAAPI_PROFILE_H264_MAIN;
968 case GST_VAAPI_PROFILE_H264_MAIN:
969 profiles[num_profiles++] = GST_VAAPI_PROFILE_H264_HIGH;
975 profile = GST_VAAPI_PROFILE_UNKNOWN;
976 for (i = 0; i < num_profiles; i++) {
977 if (gst_vaapi_display_has_encoder (display, profiles[i], entrypoint)) {
978 profile = profiles[i];
982 if (profile == GST_VAAPI_PROFILE_UNKNOWN)
983 goto error_unsupported_profile;
985 GST_VAAPI_ENCODER_CAST (encoder)->profile = profile;
989 error_unsupported_profile:
991 GST_ERROR ("unsupported HW profile (0x%08x)", encoder->profile);
996 /* Check target decoder constraints */
998 ensure_profile_limits (GstVaapiEncoderH264 * encoder)
1000 GstVaapiProfile profile;
1002 if (!encoder->max_profile_idc
1003 || encoder->profile_idc <= encoder->max_profile_idc)
1006 GST_WARNING ("lowering coding tools to meet target decoder constraints");
1008 profile = GST_VAAPI_PROFILE_UNKNOWN;
1010 /* Try Main profile coding tools */
1011 if (encoder->max_profile_idc < 100) {
1012 encoder->use_dct8x8 = FALSE;
1013 profile = GST_VAAPI_PROFILE_H264_MAIN;
1016 /* Try Constrained Baseline profile coding tools */
1017 if (encoder->max_profile_idc < 77) {
1018 encoder->num_bframes = 0;
1019 encoder->use_cabac = FALSE;
1020 profile = GST_VAAPI_PROFILE_H264_CONSTRAINED_BASELINE;
1024 encoder->profile = profile;
1025 encoder->profile_idc = encoder->max_profile_idc;
1030 /* Derives the minimum profile from the active coding tools */
1032 ensure_profile (GstVaapiEncoderH264 * encoder)
1034 GstVaapiProfile profile;
1036 /* Always start from "constrained-baseline" profile for maximum
1038 profile = GST_VAAPI_PROFILE_H264_CONSTRAINED_BASELINE;
1040 /* Main profile coding tools */
1041 if (encoder->num_bframes > 0 || encoder->use_cabac)
1042 profile = GST_VAAPI_PROFILE_H264_MAIN;
1044 /* High profile coding tools */
1045 if (encoder->use_dct8x8)
1046 profile = GST_VAAPI_PROFILE_H264_HIGH;
1048 /* MVC profiles coding tools */
1049 if (encoder->num_views == 2)
1050 profile = GST_VAAPI_PROFILE_H264_STEREO_HIGH;
1051 else if (encoder->num_views > 2)
1052 profile = GST_VAAPI_PROFILE_H264_MULTIVIEW_HIGH;
1054 encoder->profile = profile;
1055 encoder->profile_idc = gst_vaapi_utils_h264_get_profile_idc (profile);
1059 /* Derives the level from the currently set limits */
1061 ensure_level (GstVaapiEncoderH264 * encoder)
1063 const guint cpb_factor = h264_get_cpb_nal_factor (encoder->profile);
1064 const GstVaapiH264LevelLimits *limits_table;
1065 guint i, num_limits, PicSizeMbs, MaxDpbMbs, MaxMBPS;
1067 PicSizeMbs = encoder->mb_width * encoder->mb_height;
1068 MaxDpbMbs = PicSizeMbs * ((encoder->num_bframes) ? 2 : 1);
1069 MaxMBPS = gst_util_uint64_scale_int_ceil (PicSizeMbs,
1070 GST_VAAPI_ENCODER_FPS_N (encoder), GST_VAAPI_ENCODER_FPS_D (encoder));
1072 limits_table = gst_vaapi_utils_h264_get_level_limits_table (&num_limits);
1073 for (i = 0; i < num_limits; i++) {
1074 const GstVaapiH264LevelLimits *const limits = &limits_table[i];
1075 if (PicSizeMbs <= limits->MaxFS &&
1076 MaxDpbMbs <= limits->MaxDpbMbs &&
1077 MaxMBPS <= limits->MaxMBPS && (!encoder->bitrate_bits
1078 || encoder->bitrate_bits <= (limits->MaxBR * cpb_factor)) &&
1079 (!encoder->cpb_length_bits ||
1080 encoder->cpb_length_bits <= (limits->MaxCPB * cpb_factor)))
1083 if (i == num_limits)
1084 goto error_unsupported_level;
1086 encoder->level = limits_table[i].level;
1087 encoder->level_idc = limits_table[i].level_idc;
1091 error_unsupported_level:
1093 GST_ERROR ("failed to find a suitable level matching codec config");
1098 /* Enable "high-compression" tuning options */
1100 ensure_tuning_high_compression (GstVaapiEncoderH264 * encoder)
1104 if (!ensure_hw_profile_limits (encoder))
1107 profile_idc = encoder->hw_max_profile_idc;
1108 if (encoder->max_profile_idc && encoder->max_profile_idc < profile_idc)
1109 profile_idc = encoder->max_profile_idc;
1111 /* Tuning options to enable Main profile */
1112 if (profile_idc >= 77 && profile_idc != 88) {
1113 encoder->use_cabac = TRUE;
1114 if (!encoder->num_bframes)
1115 encoder->num_bframes = 1;
1118 /* Tuning options to enable High profile */
1119 if (profile_idc >= 100) {
1120 encoder->use_dct8x8 = TRUE;
1125 /* Ensure tuning options */
1127 ensure_tuning (GstVaapiEncoderH264 * encoder)
1131 switch (GST_VAAPI_ENCODER_TUNE (encoder)) {
1132 case GST_VAAPI_ENCODER_TUNE_HIGH_COMPRESSION:
1133 success = ensure_tuning_high_compression (encoder);
1142 /* Handle new GOP starts */
1144 reset_gop_start (GstVaapiEncoderH264 * encoder)
1146 GstVaapiH264ViewReorderPool *const reorder_pool =
1147 &encoder->reorder_pools[encoder->view_idx];
1149 reorder_pool->frame_index = 1;
1150 reorder_pool->cur_frame_num = 0;
1151 reorder_pool->cur_present_index = 0;
1155 /* Marks the supplied picture as a B-frame */
1157 set_b_frame (GstVaapiEncPicture * pic, GstVaapiEncoderH264 * encoder)
1159 GstVaapiH264ViewReorderPool *const reorder_pool =
1160 &encoder->reorder_pools[encoder->view_idx];
1162 g_assert (pic && encoder);
1163 g_return_if_fail (pic->type == GST_VAAPI_PICTURE_TYPE_NONE);
1164 pic->type = GST_VAAPI_PICTURE_TYPE_B;
1165 pic->frame_num = (reorder_pool->cur_frame_num % encoder->max_frame_num);
1168 /* Marks the supplied picture as a P-frame */
1170 set_p_frame (GstVaapiEncPicture * pic, GstVaapiEncoderH264 * encoder)
1172 GstVaapiH264ViewReorderPool *const reorder_pool =
1173 &encoder->reorder_pools[encoder->view_idx];
1175 g_return_if_fail (pic->type == GST_VAAPI_PICTURE_TYPE_NONE);
1176 pic->type = GST_VAAPI_PICTURE_TYPE_P;
1177 pic->frame_num = (reorder_pool->cur_frame_num % encoder->max_frame_num);
1180 /* Marks the supplied picture as an I-frame */
1182 set_i_frame (GstVaapiEncPicture * pic, GstVaapiEncoderH264 * encoder)
1184 GstVaapiH264ViewReorderPool *const reorder_pool =
1185 &encoder->reorder_pools[encoder->view_idx];
1187 g_return_if_fail (pic->type == GST_VAAPI_PICTURE_TYPE_NONE);
1188 pic->type = GST_VAAPI_PICTURE_TYPE_I;
1189 pic->frame_num = (reorder_pool->cur_frame_num % encoder->max_frame_num);
1191 g_assert (pic->frame);
1192 GST_VIDEO_CODEC_FRAME_SET_SYNC_POINT (pic->frame);
1195 /* Marks the supplied picture as an IDR frame */
1197 set_idr_frame (GstVaapiEncPicture * pic, GstVaapiEncoderH264 * encoder)
1199 g_return_if_fail (pic->type == GST_VAAPI_PICTURE_TYPE_NONE);
1200 pic->type = GST_VAAPI_PICTURE_TYPE_I;
1203 GST_VAAPI_ENC_PICTURE_FLAG_SET (pic, GST_VAAPI_ENC_PICTURE_FLAG_IDR);
1205 g_assert (pic->frame);
1206 GST_VIDEO_CODEC_FRAME_SET_SYNC_POINT (pic->frame);
1209 /* Marks the supplied picture a a key-frame */
1211 set_key_frame (GstVaapiEncPicture * picture,
1212 GstVaapiEncoderH264 * encoder, gboolean is_idr)
1215 reset_gop_start (encoder);
1216 set_idr_frame (picture, encoder);
1218 set_i_frame (picture, encoder);
1221 /* Fills in VA HRD parameters */
1223 fill_hrd_params (GstVaapiEncoderH264 * encoder, VAEncMiscParameterHRD * hrd)
1225 if (encoder->bitrate_bits > 0) {
1226 hrd->buffer_size = encoder->cpb_length_bits;
1227 hrd->initial_buffer_fullness = hrd->buffer_size / 2;
1229 hrd->buffer_size = 0;
1230 hrd->initial_buffer_fullness = 0;
1234 /* Adds the supplied sequence header (SPS) to the list of packed
1235 headers to pass down as-is to the encoder */
1237 add_packed_sequence_header (GstVaapiEncoderH264 * encoder,
1238 GstVaapiEncPicture * picture, GstVaapiEncSequence * sequence)
1240 GstVaapiEncPackedHeader *packed_seq;
1242 VAEncPackedHeaderParameterBuffer packed_seq_param = { 0 };
1243 const VAEncSequenceParameterBufferH264 *const seq_param = sequence->param;
1244 GstVaapiProfile profile = encoder->profile;
1246 VAEncMiscParameterHRD hrd_params;
1247 guint32 data_bit_size;
1250 fill_hrd_params (encoder, &hrd_params);
1252 gst_bit_writer_init (&bs, 128 * 8);
1253 WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */
1254 bs_write_nal_header (&bs, GST_H264_NAL_REF_IDC_HIGH, GST_H264_NAL_SPS);
1256 /* Set High profile for encoding the MVC base view. Otherwise, some
1257 traditional decoder cannot recognize MVC profile streams with
1258 only the base view in there */
1259 if (profile == GST_VAAPI_PROFILE_H264_MULTIVIEW_HIGH ||
1260 profile == GST_VAAPI_PROFILE_H264_STEREO_HIGH)
1261 profile = GST_VAAPI_PROFILE_H264_HIGH;
1263 bs_write_sps (&bs, seq_param, profile, &hrd_params);
1265 g_assert (GST_BIT_WRITER_BIT_SIZE (&bs) % 8 == 0);
1266 data_bit_size = GST_BIT_WRITER_BIT_SIZE (&bs);
1267 data = GST_BIT_WRITER_DATA (&bs);
1269 packed_seq_param.type = VAEncPackedHeaderSequence;
1270 packed_seq_param.bit_length = data_bit_size;
1271 packed_seq_param.has_emulation_bytes = 0;
1273 packed_seq = gst_vaapi_enc_packed_header_new (GST_VAAPI_ENCODER (encoder),
1274 &packed_seq_param, sizeof (packed_seq_param),
1275 data, (data_bit_size + 7) / 8);
1276 g_assert (packed_seq);
1278 gst_vaapi_enc_picture_add_packed_header (picture, packed_seq);
1279 gst_vaapi_codec_object_replace (&packed_seq, NULL);
1281 /* store sps data */
1282 _check_sps_pps_status (encoder, data + 4, data_bit_size / 8 - 4);
1283 gst_bit_writer_clear (&bs, TRUE);
1289 GST_WARNING ("failed to write SPS NAL unit");
1290 gst_bit_writer_clear (&bs, TRUE);
1296 add_packed_sequence_header_mvc (GstVaapiEncoderH264 * encoder,
1297 GstVaapiEncPicture * picture, GstVaapiEncSequence * sequence)
1299 GstVaapiEncPackedHeader *packed_seq;
1301 VAEncPackedHeaderParameterBuffer packed_header_param_buffer = { 0 };
1302 const VAEncSequenceParameterBufferH264 *const seq_param = sequence->param;
1303 VAEncMiscParameterHRD hrd_params;
1304 guint32 data_bit_size;
1307 fill_hrd_params (encoder, &hrd_params);
1309 /* non-base layer, pack one subset sps */
1310 gst_bit_writer_init (&bs, 128 * 8);
1311 WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */
1312 bs_write_nal_header (&bs, GST_H264_NAL_REF_IDC_HIGH, GST_H264_NAL_SUBSET_SPS);
1314 bs_write_subset_sps (&bs, seq_param, encoder->profile, encoder->num_views,
1317 g_assert (GST_BIT_WRITER_BIT_SIZE (&bs) % 8 == 0);
1318 data_bit_size = GST_BIT_WRITER_BIT_SIZE (&bs);
1319 data = GST_BIT_WRITER_DATA (&bs);
1321 packed_header_param_buffer.type = VAEncPackedHeaderSequence;
1322 packed_header_param_buffer.bit_length = data_bit_size;
1323 packed_header_param_buffer.has_emulation_bytes = 0;
1325 packed_seq = gst_vaapi_enc_packed_header_new (GST_VAAPI_ENCODER (encoder),
1326 &packed_header_param_buffer, sizeof (packed_header_param_buffer),
1327 data, (data_bit_size + 7) / 8);
1328 g_assert (packed_seq);
1330 gst_vaapi_enc_picture_add_packed_header (picture, packed_seq);
1331 gst_vaapi_mini_object_replace ((GstVaapiMiniObject **) & packed_seq, NULL);
1333 /* store subset sps data */
1334 _check_sps_pps_status (encoder, data + 4, data_bit_size / 8 - 4);
1335 gst_bit_writer_clear (&bs, TRUE);
1341 GST_WARNING ("failed to write SPS NAL unit");
1342 gst_bit_writer_clear (&bs, TRUE);
1347 /* Adds the supplied picture header (PPS) to the list of packed
1348 headers to pass down as-is to the encoder */
1350 add_packed_picture_header (GstVaapiEncoderH264 * encoder,
1351 GstVaapiEncPicture * picture)
1353 GstVaapiEncPackedHeader *packed_pic;
1355 VAEncPackedHeaderParameterBuffer packed_pic_param = { 0 };
1356 const VAEncPictureParameterBufferH264 *const pic_param = picture->param;
1357 guint32 data_bit_size;
1360 gst_bit_writer_init (&bs, 128 * 8);
1361 WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */
1362 bs_write_nal_header (&bs, GST_H264_NAL_REF_IDC_HIGH, GST_H264_NAL_PPS);
1363 bs_write_pps (&bs, pic_param, encoder->profile);
1364 g_assert (GST_BIT_WRITER_BIT_SIZE (&bs) % 8 == 0);
1365 data_bit_size = GST_BIT_WRITER_BIT_SIZE (&bs);
1366 data = GST_BIT_WRITER_DATA (&bs);
1368 packed_pic_param.type = VAEncPackedHeaderPicture;
1369 packed_pic_param.bit_length = data_bit_size;
1370 packed_pic_param.has_emulation_bytes = 0;
1372 packed_pic = gst_vaapi_enc_packed_header_new (GST_VAAPI_ENCODER (encoder),
1373 &packed_pic_param, sizeof (packed_pic_param),
1374 data, (data_bit_size + 7) / 8);
1375 g_assert (packed_pic);
1377 gst_vaapi_enc_picture_add_packed_header (picture, packed_pic);
1378 gst_vaapi_codec_object_replace (&packed_pic, NULL);
1380 /* store pps data */
1381 _check_sps_pps_status (encoder, data + 4, data_bit_size / 8 - 4);
1382 gst_bit_writer_clear (&bs, TRUE);
1388 GST_WARNING ("failed to write PPS NAL unit");
1389 gst_bit_writer_clear (&bs, TRUE);
1395 get_nal_hdr_attributes (GstVaapiEncPicture * picture,
1396 guint8 * nal_ref_idc, guint8 * nal_unit_type)
1398 switch (picture->type) {
1399 case GST_VAAPI_PICTURE_TYPE_I:
1400 *nal_ref_idc = GST_H264_NAL_REF_IDC_HIGH;
1401 if (GST_VAAPI_ENC_PICTURE_IS_IDR (picture))
1402 *nal_unit_type = GST_H264_NAL_SLICE_IDR;
1404 *nal_unit_type = GST_H264_NAL_SLICE;
1406 case GST_VAAPI_PICTURE_TYPE_P:
1407 *nal_ref_idc = GST_H264_NAL_REF_IDC_MEDIUM;
1408 *nal_unit_type = GST_H264_NAL_SLICE;
1410 case GST_VAAPI_PICTURE_TYPE_B:
1411 *nal_ref_idc = GST_H264_NAL_REF_IDC_NONE;
1412 *nal_unit_type = GST_H264_NAL_SLICE;
1420 /* Adds the supplied prefix nal header to the list of packed
1421 headers to pass down as-is to the encoder */
1423 add_packed_prefix_nal_header (GstVaapiEncoderH264 * encoder,
1424 GstVaapiEncPicture * picture, GstVaapiEncSlice * slice)
1426 GstVaapiEncPackedHeader *packed_prefix_nal;
1428 VAEncPackedHeaderParameterBuffer packed_prefix_nal_param = { 0 };
1429 guint32 data_bit_size;
1431 guint8 nal_ref_idc, nal_unit_type;
1433 gst_bit_writer_init (&bs, 128 * 8);
1434 WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */
1436 if (!get_nal_hdr_attributes (picture, &nal_ref_idc, &nal_unit_type))
1438 nal_unit_type = GST_H264_NAL_PREFIX_UNIT;
1440 bs_write_nal_header (&bs, nal_ref_idc, nal_unit_type);
1441 bs_write_nal_header_mvc_extension (&bs, picture, encoder->view_idx);
1442 g_assert (GST_BIT_WRITER_BIT_SIZE (&bs) % 8 == 0);
1443 data_bit_size = GST_BIT_WRITER_BIT_SIZE (&bs);
1444 data = GST_BIT_WRITER_DATA (&bs);
1446 packed_prefix_nal_param.type = VAEncPackedHeaderRawData;
1447 packed_prefix_nal_param.bit_length = data_bit_size;
1448 packed_prefix_nal_param.has_emulation_bytes = 0;
1451 gst_vaapi_enc_packed_header_new (GST_VAAPI_ENCODER (encoder),
1452 &packed_prefix_nal_param, sizeof (packed_prefix_nal_param), data,
1453 (data_bit_size + 7) / 8);
1454 g_assert (packed_prefix_nal);
1456 gst_vaapi_enc_slice_add_packed_header (slice, packed_prefix_nal);
1457 gst_vaapi_codec_object_replace (&packed_prefix_nal, NULL);
1459 gst_bit_writer_clear (&bs, TRUE);
1466 GST_WARNING ("failed to write Prefix NAL unit header");
1467 gst_bit_writer_clear (&bs, TRUE);
1472 /* Adds the supplied slice header to the list of packed
1473 headers to pass down as-is to the encoder */
1475 add_packed_slice_header (GstVaapiEncoderH264 * encoder,
1476 GstVaapiEncPicture * picture, GstVaapiEncSlice * slice)
1478 GstVaapiEncPackedHeader *packed_slice;
1480 VAEncPackedHeaderParameterBuffer packed_slice_param = { 0 };
1481 const VAEncSliceParameterBufferH264 *const slice_param = slice->param;
1482 guint32 data_bit_size;
1484 guint8 nal_ref_idc, nal_unit_type;
1486 gst_bit_writer_init (&bs, 128 * 8);
1487 WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */
1489 if (!get_nal_hdr_attributes (picture, &nal_ref_idc, &nal_unit_type))
1491 /* pack nal_unit_header_mvc_extension() for the non base view */
1492 if (encoder->is_mvc && encoder->view_idx) {
1493 bs_write_nal_header (&bs, nal_ref_idc, GST_H264_NAL_SLICE_EXT);
1494 bs_write_nal_header_mvc_extension (&bs, picture, encoder->view_idx);
1496 bs_write_nal_header (&bs, nal_ref_idc, nal_unit_type);
1498 bs_write_slice (&bs, slice_param, encoder, picture);
1499 data_bit_size = GST_BIT_WRITER_BIT_SIZE (&bs);
1500 data = GST_BIT_WRITER_DATA (&bs);
1502 packed_slice_param.type = VAEncPackedHeaderSlice;
1503 packed_slice_param.bit_length = data_bit_size;
1504 packed_slice_param.has_emulation_bytes = 0;
1506 packed_slice = gst_vaapi_enc_packed_header_new (GST_VAAPI_ENCODER (encoder),
1507 &packed_slice_param, sizeof (packed_slice_param),
1508 data, (data_bit_size + 7) / 8);
1509 g_assert (packed_slice);
1511 gst_vaapi_enc_slice_add_packed_header (slice, packed_slice);
1512 gst_vaapi_codec_object_replace (&packed_slice, NULL);
1514 gst_bit_writer_clear (&bs, TRUE);
1520 GST_WARNING ("failed to write Slice NAL unit header");
1521 gst_bit_writer_clear (&bs, TRUE);
1526 /* Reference picture management */
1528 reference_pic_free (GstVaapiEncoderH264 * encoder, GstVaapiEncoderH264Ref * ref)
1533 gst_vaapi_encoder_release_surface (GST_VAAPI_ENCODER (encoder), ref->pic);
1534 g_slice_free (GstVaapiEncoderH264Ref, ref);
1537 static inline GstVaapiEncoderH264Ref *
1538 reference_pic_create (GstVaapiEncoderH264 * encoder,
1539 GstVaapiEncPicture * picture, GstVaapiSurfaceProxy * surface)
1541 GstVaapiEncoderH264Ref *const ref = g_slice_new0 (GstVaapiEncoderH264Ref);
1544 ref->frame_num = picture->frame_num;
1545 ref->poc = picture->poc;
1550 reference_list_update (GstVaapiEncoderH264 * encoder,
1551 GstVaapiEncPicture * picture, GstVaapiSurfaceProxy * surface)
1553 GstVaapiEncoderH264Ref *ref;
1554 GstVaapiH264ViewRefPool *const ref_pool =
1555 &encoder->ref_pools[encoder->view_idx];
1557 if (GST_VAAPI_PICTURE_TYPE_B == picture->type) {
1558 gst_vaapi_encoder_release_surface (GST_VAAPI_ENCODER (encoder), surface);
1561 if (GST_VAAPI_ENC_PICTURE_IS_IDR (picture)) {
1562 while (!g_queue_is_empty (&ref_pool->ref_list))
1563 reference_pic_free (encoder, g_queue_pop_head (&ref_pool->ref_list));
1564 } else if (g_queue_get_length (&ref_pool->ref_list) >=
1565 ref_pool->max_ref_frames) {
1566 reference_pic_free (encoder, g_queue_pop_head (&ref_pool->ref_list));
1568 ref = reference_pic_create (encoder, picture, surface);
1569 g_queue_push_tail (&ref_pool->ref_list, ref);
1570 g_assert (g_queue_get_length (&ref_pool->ref_list) <=
1571 ref_pool->max_ref_frames);
1576 reference_list_init (GstVaapiEncoderH264 * encoder,
1577 GstVaapiEncPicture * picture,
1578 GstVaapiEncoderH264Ref ** reflist_0,
1579 guint * reflist_0_count,
1580 GstVaapiEncoderH264Ref ** reflist_1, guint * reflist_1_count)
1582 GstVaapiEncoderH264Ref *tmp;
1583 GstVaapiH264ViewRefPool *const ref_pool =
1584 &encoder->ref_pools[encoder->view_idx];
1585 GList *iter, *list_0_start = NULL, *list_1_start = NULL;
1588 *reflist_0_count = 0;
1589 *reflist_1_count = 0;
1590 if (picture->type == GST_VAAPI_PICTURE_TYPE_I)
1593 iter = g_queue_peek_tail_link (&ref_pool->ref_list);
1594 for (; iter; iter = g_list_previous (iter)) {
1595 tmp = (GstVaapiEncoderH264Ref *) iter->data;
1596 g_assert (tmp && tmp->poc != picture->poc);
1597 if (_poc_greater_than (picture->poc, tmp->poc, encoder->max_pic_order_cnt)) {
1598 list_0_start = iter;
1599 list_1_start = g_list_next (iter);
1604 /* order reflist_0 */
1605 g_assert (list_0_start);
1606 iter = list_0_start;
1608 for (; iter; iter = g_list_previous (iter)) {
1609 reflist_0[count] = (GstVaapiEncoderH264Ref *) iter->data;
1612 *reflist_0_count = count;
1614 if (picture->type != GST_VAAPI_PICTURE_TYPE_B)
1617 /* order reflist_1 */
1619 iter = list_1_start;
1620 for (; iter; iter = g_list_next (iter)) {
1621 reflist_1[count] = (GstVaapiEncoderH264Ref *) iter->data;
1624 *reflist_1_count = count;
1628 /* Fills in VA sequence parameter buffer */
1630 fill_sequence (GstVaapiEncoderH264 * encoder, GstVaapiEncSequence * sequence)
1632 VAEncSequenceParameterBufferH264 *const seq_param = sequence->param;
1633 GstVaapiH264ViewRefPool *const ref_pool =
1634 &encoder->ref_pools[encoder->view_idx];
1636 memset (seq_param, 0, sizeof (VAEncSequenceParameterBufferH264));
1637 seq_param->seq_parameter_set_id = encoder->view_idx;
1638 seq_param->level_idc = encoder->level_idc;
1639 seq_param->intra_period = GST_VAAPI_ENCODER_KEYFRAME_PERIOD (encoder);
1640 seq_param->ip_period = 1 + encoder->num_bframes;
1641 seq_param->bits_per_second = encoder->bitrate_bits;
1643 seq_param->max_num_ref_frames = ref_pool->max_ref_frames;
1644 seq_param->picture_width_in_mbs = encoder->mb_width;
1645 seq_param->picture_height_in_mbs = encoder->mb_height;
1647 /*sequence field values */
1648 seq_param->seq_fields.value = 0;
1649 seq_param->seq_fields.bits.chroma_format_idc = 1;
1650 seq_param->seq_fields.bits.frame_mbs_only_flag = 1;
1651 seq_param->seq_fields.bits.mb_adaptive_frame_field_flag = FALSE;
1652 seq_param->seq_fields.bits.seq_scaling_matrix_present_flag = FALSE;
1653 /* direct_8x8_inference_flag default false */
1654 seq_param->seq_fields.bits.direct_8x8_inference_flag = FALSE;
1655 g_assert (encoder->log2_max_frame_num >= 4);
1656 seq_param->seq_fields.bits.log2_max_frame_num_minus4 =
1657 encoder->log2_max_frame_num - 4;
1658 /* picture order count */
1659 encoder->pic_order_cnt_type = seq_param->seq_fields.bits.pic_order_cnt_type =
1661 g_assert (encoder->log2_max_pic_order_cnt >= 4);
1662 seq_param->seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 =
1663 encoder->log2_max_pic_order_cnt - 4;
1665 seq_param->bit_depth_luma_minus8 = 0;
1666 seq_param->bit_depth_chroma_minus8 = 0;
1668 /* not used if pic_order_cnt_type == 0 */
1669 if (seq_param->seq_fields.bits.pic_order_cnt_type == 1) {
1670 encoder->delta_pic_order_always_zero_flag =
1671 seq_param->seq_fields.bits.delta_pic_order_always_zero_flag = TRUE;
1672 seq_param->num_ref_frames_in_pic_order_cnt_cycle = 0;
1673 seq_param->offset_for_non_ref_pic = 0;
1674 seq_param->offset_for_top_to_bottom_field = 0;
1675 memset (seq_param->offset_for_ref_frame, 0,
1676 sizeof (seq_param->offset_for_ref_frame));
1679 /* frame_cropping_flag */
1680 if ((GST_VAAPI_ENCODER_WIDTH (encoder) & 15) ||
1681 (GST_VAAPI_ENCODER_HEIGHT (encoder) & 15)) {
1682 static const guint SubWidthC[] = { 1, 2, 2, 1 };
1683 static const guint SubHeightC[] = { 1, 2, 1, 1 };
1684 const guint CropUnitX =
1685 SubWidthC[seq_param->seq_fields.bits.chroma_format_idc];
1686 const guint CropUnitY =
1687 SubHeightC[seq_param->seq_fields.bits.chroma_format_idc] *
1688 (2 - seq_param->seq_fields.bits.frame_mbs_only_flag);
1690 seq_param->frame_cropping_flag = 1;
1691 seq_param->frame_crop_left_offset = 0;
1692 seq_param->frame_crop_right_offset =
1693 (16 * encoder->mb_width -
1694 GST_VAAPI_ENCODER_WIDTH (encoder)) / CropUnitX;
1695 seq_param->frame_crop_top_offset = 0;
1696 seq_param->frame_crop_bottom_offset =
1697 (16 * encoder->mb_height -
1698 GST_VAAPI_ENCODER_HEIGHT (encoder)) / CropUnitY;
1701 /* VUI parameters are always set, at least for timing_info (framerate) */
1702 seq_param->vui_parameters_present_flag = TRUE;
1703 if (seq_param->vui_parameters_present_flag) {
1704 seq_param->vui_fields.bits.aspect_ratio_info_present_flag = FALSE;
1705 if (seq_param->vui_fields.bits.aspect_ratio_info_present_flag) {
1706 const GstVideoInfo *const vip = GST_VAAPI_ENCODER_VIDEO_INFO (encoder);
1707 seq_param->sar_width = GST_VIDEO_INFO_PAR_N (vip);
1708 seq_param->sar_height = GST_VIDEO_INFO_PAR_D (vip);
1710 seq_param->vui_fields.bits.bitstream_restriction_flag = FALSE;
1711 /* if vui_parameters_present_flag is TRUE and sps data belongs to
1712 * subset sps, timing_info_preset_flag should be zero (H.7.4.2.1.1) */
1713 seq_param->vui_fields.bits.timing_info_present_flag = !encoder->view_idx;
1714 if (seq_param->vui_fields.bits.timing_info_present_flag) {
1715 seq_param->num_units_in_tick = GST_VAAPI_ENCODER_FPS_D (encoder);
1716 seq_param->time_scale = GST_VAAPI_ENCODER_FPS_N (encoder) * 2;
1722 /* Fills in VA picture parameter buffer */
1724 fill_picture (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture,
1725 GstVaapiCodedBuffer * codedbuf, GstVaapiSurfaceProxy * surface)
1727 VAEncPictureParameterBufferH264 *const pic_param = picture->param;
1728 GstVaapiH264ViewRefPool *const ref_pool =
1729 &encoder->ref_pools[encoder->view_idx];
1730 GstVaapiEncoderH264Ref *ref_pic;
1734 memset (pic_param, 0, sizeof (VAEncPictureParameterBufferH264));
1736 /* reference list, */
1737 pic_param->CurrPic.picture_id = GST_VAAPI_SURFACE_PROXY_SURFACE_ID (surface);
1738 pic_param->CurrPic.TopFieldOrderCnt = picture->poc;
1740 if (picture->type != GST_VAAPI_PICTURE_TYPE_I) {
1741 for (reflist = g_queue_peek_head_link (&ref_pool->ref_list);
1742 reflist; reflist = g_list_next (reflist)) {
1743 ref_pic = reflist->data;
1744 g_assert (ref_pic && ref_pic->pic &&
1745 GST_VAAPI_SURFACE_PROXY_SURFACE_ID (ref_pic->pic) != VA_INVALID_ID);
1747 pic_param->ReferenceFrames[i].picture_id =
1748 GST_VAAPI_SURFACE_PROXY_SURFACE_ID (ref_pic->pic);
1751 g_assert (i <= 16 && i <= ref_pool->max_ref_frames);
1753 for (; i < 16; ++i) {
1754 pic_param->ReferenceFrames[i].picture_id = VA_INVALID_ID;
1756 pic_param->coded_buf = GST_VAAPI_OBJECT_ID (codedbuf);
1758 pic_param->pic_parameter_set_id = encoder->view_idx;
1759 pic_param->seq_parameter_set_id = encoder->view_idx;
1760 pic_param->last_picture = 0; /* means last encoding picture */
1761 pic_param->frame_num = picture->frame_num;
1762 pic_param->pic_init_qp = encoder->init_qp;
1763 pic_param->num_ref_idx_l0_active_minus1 =
1764 (ref_pool->max_reflist0_count ? (ref_pool->max_reflist0_count - 1) : 0);
1765 pic_param->num_ref_idx_l1_active_minus1 =
1766 (ref_pool->max_reflist1_count ? (ref_pool->max_reflist1_count - 1) : 0);
1767 pic_param->chroma_qp_index_offset = 0;
1768 pic_param->second_chroma_qp_index_offset = 0;
1770 /* set picture fields */
1771 pic_param->pic_fields.value = 0;
1772 pic_param->pic_fields.bits.idr_pic_flag =
1773 GST_VAAPI_ENC_PICTURE_IS_IDR (picture);
1774 pic_param->pic_fields.bits.reference_pic_flag =
1775 (picture->type != GST_VAAPI_PICTURE_TYPE_B);
1776 pic_param->pic_fields.bits.entropy_coding_mode_flag = encoder->use_cabac;
1777 pic_param->pic_fields.bits.weighted_pred_flag = FALSE;
1778 pic_param->pic_fields.bits.weighted_bipred_idc = 0;
1779 pic_param->pic_fields.bits.constrained_intra_pred_flag = 0;
1780 pic_param->pic_fields.bits.transform_8x8_mode_flag = encoder->use_dct8x8;
1781 /* enable debloking */
1782 pic_param->pic_fields.bits.deblocking_filter_control_present_flag = TRUE;
1783 pic_param->pic_fields.bits.redundant_pic_cnt_present_flag = FALSE;
1784 /* bottom_field_pic_order_in_frame_present_flag */
1785 pic_param->pic_fields.bits.pic_order_present_flag = FALSE;
1786 pic_param->pic_fields.bits.pic_scaling_matrix_present_flag = FALSE;
1791 /* Adds slice headers to picture */
1793 add_slice_headers (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture,
1794 GstVaapiEncoderH264Ref ** reflist_0, guint reflist_0_count,
1795 GstVaapiEncoderH264Ref ** reflist_1, guint reflist_1_count)
1797 VAEncSliceParameterBufferH264 *slice_param;
1798 GstVaapiEncSlice *slice;
1799 guint slice_of_mbs, slice_mod_mbs, cur_slice_mbs;
1801 guint last_mb_index;
1802 guint i_slice, i_ref;
1806 mb_size = encoder->mb_width * encoder->mb_height;
1808 g_assert (encoder->num_slices && encoder->num_slices < mb_size);
1809 slice_of_mbs = mb_size / encoder->num_slices;
1810 slice_mod_mbs = mb_size % encoder->num_slices;
1812 for (i_slice = 0; i_slice < encoder->num_slices; ++i_slice) {
1813 cur_slice_mbs = slice_of_mbs;
1814 if (slice_mod_mbs) {
1818 slice = GST_VAAPI_ENC_SLICE_NEW (H264, encoder);
1819 g_assert (slice && slice->param_id != VA_INVALID_ID);
1820 slice_param = slice->param;
1822 memset (slice_param, 0, sizeof (VAEncSliceParameterBufferH264));
1823 slice_param->macroblock_address = last_mb_index;
1824 slice_param->num_macroblocks = cur_slice_mbs;
1825 slice_param->macroblock_info = VA_INVALID_ID;
1826 slice_param->slice_type = h264_get_slice_type (picture->type);
1827 g_assert (slice_param->slice_type != -1);
1828 slice_param->pic_parameter_set_id = encoder->view_idx;
1829 slice_param->idr_pic_id = encoder->idr_num;
1830 slice_param->pic_order_cnt_lsb = picture->poc;
1832 /* not used if pic_order_cnt_type = 0 */
1833 slice_param->delta_pic_order_cnt_bottom = 0;
1834 memset (slice_param->delta_pic_order_cnt, 0,
1835 sizeof (slice_param->delta_pic_order_cnt));
1837 /* only works for B frames */
1838 slice_param->direct_spatial_mv_pred_flag = FALSE;
1839 /* default equal to picture parameters */
1840 slice_param->num_ref_idx_active_override_flag = FALSE;
1841 if (picture->type != GST_VAAPI_PICTURE_TYPE_I && reflist_0_count > 0)
1842 slice_param->num_ref_idx_l0_active_minus1 = reflist_0_count - 1;
1844 slice_param->num_ref_idx_l0_active_minus1 = 0;
1845 if (picture->type == GST_VAAPI_PICTURE_TYPE_B && reflist_1_count > 0)
1846 slice_param->num_ref_idx_l1_active_minus1 = reflist_1_count - 1;
1848 slice_param->num_ref_idx_l1_active_minus1 = 0;
1849 g_assert (slice_param->num_ref_idx_l0_active_minus1 == 0);
1850 g_assert (slice_param->num_ref_idx_l1_active_minus1 == 0);
1853 if (picture->type != GST_VAAPI_PICTURE_TYPE_I) {
1854 for (; i_ref < reflist_0_count; ++i_ref) {
1855 slice_param->RefPicList0[i_ref].picture_id =
1856 GST_VAAPI_SURFACE_PROXY_SURFACE_ID (reflist_0[i_ref]->pic);
1858 g_assert (i_ref == 1);
1860 for (; i_ref < G_N_ELEMENTS (slice_param->RefPicList0); ++i_ref) {
1861 slice_param->RefPicList0[i_ref].picture_id = VA_INVALID_SURFACE;
1865 if (picture->type == GST_VAAPI_PICTURE_TYPE_B) {
1866 for (; i_ref < reflist_1_count; ++i_ref) {
1867 slice_param->RefPicList1[i_ref].picture_id =
1868 GST_VAAPI_SURFACE_PROXY_SURFACE_ID (reflist_1[i_ref]->pic);
1870 g_assert (i_ref == 1);
1872 for (; i_ref < G_N_ELEMENTS (slice_param->RefPicList1); ++i_ref) {
1873 slice_param->RefPicList1[i_ref].picture_id = VA_INVALID_SURFACE;
1876 /* not used if pic_param.pic_fields.bits.weighted_pred_flag == FALSE */
1877 slice_param->luma_log2_weight_denom = 0;
1878 slice_param->chroma_log2_weight_denom = 0;
1879 slice_param->luma_weight_l0_flag = FALSE;
1880 memset (slice_param->luma_weight_l0, 0,
1881 sizeof (slice_param->luma_weight_l0));
1882 memset (slice_param->luma_offset_l0, 0,
1883 sizeof (slice_param->luma_offset_l0));
1884 slice_param->chroma_weight_l0_flag = FALSE;
1885 memset (slice_param->chroma_weight_l0, 0,
1886 sizeof (slice_param->chroma_weight_l0));
1887 memset (slice_param->chroma_offset_l0, 0,
1888 sizeof (slice_param->chroma_offset_l0));
1889 slice_param->luma_weight_l1_flag = FALSE;
1890 memset (slice_param->luma_weight_l1, 0,
1891 sizeof (slice_param->luma_weight_l1));
1892 memset (slice_param->luma_offset_l1, 0,
1893 sizeof (slice_param->luma_offset_l1));
1894 slice_param->chroma_weight_l1_flag = FALSE;
1895 memset (slice_param->chroma_weight_l1, 0,
1896 sizeof (slice_param->chroma_weight_l1));
1897 memset (slice_param->chroma_offset_l1, 0,
1898 sizeof (slice_param->chroma_offset_l1));
1900 slice_param->cabac_init_idc = 0;
1901 slice_param->slice_qp_delta = encoder->init_qp - encoder->min_qp;
1902 if (slice_param->slice_qp_delta > 4)
1903 slice_param->slice_qp_delta = 4;
1904 slice_param->disable_deblocking_filter_idc = 0;
1905 slice_param->slice_alpha_c0_offset_div2 = 2;
1906 slice_param->slice_beta_offset_div2 = 2;
1908 /* set calculation for next slice */
1909 last_mb_index += cur_slice_mbs;
1911 /* add packed Prefix NAL unit before each Coded slice NAL in base view */
1912 if (encoder->is_mvc && !encoder->view_idx &&
1913 (GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) &
1914 VA_ENC_PACKED_HEADER_RAW_DATA)
1915 && !add_packed_prefix_nal_header (encoder, picture, slice))
1916 goto error_create_packed_prefix_nal_hdr;
1917 if ((GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) &
1918 VA_ENC_PACKED_HEADER_SLICE)
1919 && !add_packed_slice_header (encoder, picture, slice))
1920 goto error_create_packed_slice_hdr;
1922 gst_vaapi_enc_picture_add_slice (picture, slice);
1923 gst_vaapi_codec_object_replace (&slice, NULL);
1925 g_assert (last_mb_index == mb_size);
1928 error_create_packed_slice_hdr:
1930 GST_ERROR ("failed to create packed slice header buffer");
1931 gst_vaapi_codec_object_replace (&slice, NULL);
1934 error_create_packed_prefix_nal_hdr:
1936 GST_ERROR ("failed to create packed prefix nal header buffer");
1937 gst_vaapi_codec_object_replace (&slice, NULL);
1942 /* Generates and submits SPS header accordingly into the bitstream */
1944 ensure_sequence (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture)
1946 GstVaapiEncSequence *sequence = NULL;
1948 /* submit an SPS header before every new I-frame, if codec config changed */
1949 if (!encoder->config_changed || picture->type != GST_VAAPI_PICTURE_TYPE_I)
1952 sequence = GST_VAAPI_ENC_SEQUENCE_NEW (H264, encoder);
1953 if (!sequence || !fill_sequence (encoder, sequence))
1954 goto error_create_seq_param;
1956 /* add subset sps for non-base view and sps for base view */
1957 if (encoder->is_mvc && encoder->view_idx) {
1958 if ((GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) & VAEncPackedHeaderH264_SPS)
1959 && !add_packed_sequence_header_mvc (encoder, picture, sequence))
1960 goto error_create_packed_seq_hdr;
1962 if ((GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) & VAEncPackedHeaderH264_SPS)
1963 && !add_packed_sequence_header (encoder, picture, sequence))
1964 goto error_create_packed_seq_hdr;
1968 gst_vaapi_enc_picture_set_sequence (picture, sequence);
1969 gst_vaapi_codec_object_replace (&sequence, NULL);
1972 if (!encoder->is_mvc || encoder->view_idx > 0)
1973 encoder->config_changed = FALSE;
1977 error_create_seq_param:
1979 GST_ERROR ("failed to create sequence parameter buffer (SPS)");
1980 gst_vaapi_codec_object_replace (&sequence, NULL);
1983 error_create_packed_seq_hdr:
1985 GST_ERROR ("failed to create packed sequence header buffer");
1986 gst_vaapi_codec_object_replace (&sequence, NULL);
1991 /* Generates additional control parameters */
1993 ensure_misc_params (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture)
1995 GstVaapiEncMiscParam *misc = NULL;
1996 VAEncMiscParameterRateControl *rate_control;
1999 misc = GST_VAAPI_ENC_MISC_PARAM_NEW (HRD, encoder);
2003 fill_hrd_params (encoder, misc->data);
2004 gst_vaapi_enc_picture_add_misc_param (picture, misc);
2005 gst_vaapi_codec_object_replace (&misc, NULL);
2007 /* RateControl params */
2008 if (GST_VAAPI_ENCODER_RATE_CONTROL (encoder) == GST_VAAPI_RATECONTROL_CBR ||
2009 GST_VAAPI_ENCODER_RATE_CONTROL (encoder) == GST_VAAPI_RATECONTROL_VBR) {
2010 misc = GST_VAAPI_ENC_MISC_PARAM_NEW (RateControl, encoder);
2014 rate_control = misc->data;
2015 memset (rate_control, 0, sizeof (VAEncMiscParameterRateControl));
2016 rate_control->bits_per_second = encoder->bitrate_bits;
2017 rate_control->target_percentage = 70;
2018 rate_control->window_size = encoder->cpb_length;
2019 rate_control->initial_qp = encoder->init_qp;
2020 rate_control->min_qp = encoder->min_qp;
2021 rate_control->basic_unit_size = 0;
2022 gst_vaapi_enc_picture_add_misc_param (picture, misc);
2023 gst_vaapi_codec_object_replace (&misc, NULL);
2028 /* Generates and submits PPS header accordingly into the bitstream */
2030 ensure_picture (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture,
2031 GstVaapiCodedBufferProxy * codedbuf_proxy, GstVaapiSurfaceProxy * surface)
2033 GstVaapiCodedBuffer *const codedbuf =
2034 GST_VAAPI_CODED_BUFFER_PROXY_BUFFER (codedbuf_proxy);
2035 gboolean res = FALSE;
2037 res = fill_picture (encoder, picture, codedbuf, surface);
2042 if (picture->type == GST_VAAPI_PICTURE_TYPE_I &&
2043 (GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) & VAEncPackedHeaderH264_PPS)
2044 && !add_packed_picture_header (encoder, picture)) {
2045 GST_ERROR ("set picture packed header failed");
2051 /* Generates slice headers */
2053 ensure_slices (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture)
2055 GstVaapiEncoderH264Ref *reflist_0[16];
2056 GstVaapiEncoderH264Ref *reflist_1[16];
2057 GstVaapiH264ViewRefPool *const ref_pool =
2058 &encoder->ref_pools[encoder->view_idx];
2059 guint reflist_0_count = 0, reflist_1_count = 0;
2063 if (picture->type != GST_VAAPI_PICTURE_TYPE_I &&
2064 !reference_list_init (encoder, picture,
2065 reflist_0, &reflist_0_count, reflist_1, &reflist_1_count)) {
2066 GST_ERROR ("reference list reorder failed");
2070 g_assert (reflist_0_count + reflist_1_count <= ref_pool->max_ref_frames);
2071 if (reflist_0_count > ref_pool->max_reflist0_count)
2072 reflist_0_count = ref_pool->max_reflist0_count;
2073 if (reflist_1_count > ref_pool->max_reflist1_count)
2074 reflist_1_count = ref_pool->max_reflist1_count;
2076 if (!add_slice_headers (encoder, picture,
2077 reflist_0, reflist_0_count, reflist_1, reflist_1_count))
2083 /* Normalizes bitrate (and CPB size) for HRD conformance */
2085 ensure_bitrate_hrd (GstVaapiEncoderH264 * encoder)
2087 GstVaapiEncoder *const base_encoder = GST_VAAPI_ENCODER_CAST (encoder);
2088 guint bitrate, cpb_size;
2090 if (!base_encoder->bitrate) {
2091 encoder->bitrate_bits = 0;
2095 /* Round down bitrate. This is a hard limit mandated by the user */
2096 g_assert (SX_BITRATE >= 6);
2097 bitrate = (base_encoder->bitrate * 1000) & ~((1U << SX_BITRATE) - 1);
2098 if (bitrate != encoder->bitrate_bits) {
2099 GST_DEBUG ("HRD bitrate: %u bits/sec", bitrate);
2100 encoder->bitrate_bits = bitrate;
2101 encoder->config_changed = TRUE;
2104 /* Round up CPB size. This is an HRD compliance detail */
2105 g_assert (SX_CPB_SIZE >= 4);
2106 cpb_size = gst_util_uint64_scale (bitrate, encoder->cpb_length, 1000) &
2107 ~((1U << SX_CPB_SIZE) - 1);
2108 if (cpb_size != encoder->cpb_length_bits) {
2109 GST_DEBUG ("HRD CPB size: %u bits", cpb_size);
2110 encoder->cpb_length_bits = cpb_size;
2111 encoder->config_changed = TRUE;
2115 /* Estimates a good enough bitrate if none was supplied */
2117 ensure_bitrate (GstVaapiEncoderH264 * encoder)
2119 GstVaapiEncoder *const base_encoder = GST_VAAPI_ENCODER_CAST (encoder);
2121 /* Default compression: 48 bits per macroblock in "high-compression" mode */
2122 switch (GST_VAAPI_ENCODER_RATE_CONTROL (encoder)) {
2123 case GST_VAAPI_RATECONTROL_CBR:
2124 case GST_VAAPI_RATECONTROL_VBR:
2125 case GST_VAAPI_RATECONTROL_VBR_CONSTRAINED:
2126 if (!base_encoder->bitrate) {
2127 /* According to the literature and testing, CABAC entropy coding
2128 mode could provide for +10% to +18% improvement in general,
2129 thus estimating +15% here ; and using adaptive 8x8 transforms
2130 in I-frames could bring up to +10% improvement. */
2131 guint bits_per_mb = 48;
2132 if (!encoder->use_cabac)
2133 bits_per_mb += (bits_per_mb * 15) / 100;
2134 if (!encoder->use_dct8x8)
2135 bits_per_mb += (bits_per_mb * 10) / 100;
2137 base_encoder->bitrate =
2138 encoder->mb_width * encoder->mb_height * bits_per_mb *
2139 GST_VAAPI_ENCODER_FPS_N (encoder) /
2140 GST_VAAPI_ENCODER_FPS_D (encoder) / 1000;
2141 GST_INFO ("target bitrate computed to %u kbps", base_encoder->bitrate);
2145 base_encoder->bitrate = 0;
2148 ensure_bitrate_hrd (encoder);
2151 /* Constructs profile and level information based on user-defined limits */
2152 static GstVaapiEncoderStatus
2153 ensure_profile_and_level (GstVaapiEncoderH264 * encoder)
2155 const GstVaapiProfile profile = encoder->profile;
2156 const GstVaapiLevelH264 level = encoder->level;
2158 ensure_tuning (encoder);
2160 if (!ensure_profile (encoder) || !ensure_profile_limits (encoder))
2161 return GST_VAAPI_ENCODER_STATUS_ERROR_UNSUPPORTED_PROFILE;
2163 /* Check HW constraints */
2164 if (!ensure_hw_profile_limits (encoder))
2165 return GST_VAAPI_ENCODER_STATUS_ERROR_UNSUPPORTED_PROFILE;
2166 if (encoder->profile_idc > encoder->hw_max_profile_idc)
2167 return GST_VAAPI_ENCODER_STATUS_ERROR_UNSUPPORTED_PROFILE;
2169 /* Ensure bitrate if not set already and derive the right level to use */
2170 ensure_bitrate (encoder);
2171 if (!ensure_level (encoder))
2172 return GST_VAAPI_ENCODER_STATUS_ERROR_OPERATION_FAILED;
2174 if (encoder->profile != profile || encoder->level != level) {
2175 GST_DEBUG ("selected %s profile at level %s",
2176 gst_vaapi_utils_h264_get_profile_string (encoder->profile),
2177 gst_vaapi_utils_h264_get_level_string (encoder->level));
2178 encoder->config_changed = TRUE;
2180 return GST_VAAPI_ENCODER_STATUS_SUCCESS;
2184 reset_properties (GstVaapiEncoderH264 * encoder)
2186 GstVaapiEncoder *const base_encoder = GST_VAAPI_ENCODER_CAST (encoder);
2189 if (encoder->idr_period < base_encoder->keyframe_period)
2190 encoder->idr_period = base_encoder->keyframe_period;
2191 if (encoder->idr_period > MAX_IDR_PERIOD)
2192 encoder->idr_period = MAX_IDR_PERIOD;
2194 if (encoder->min_qp > encoder->init_qp ||
2195 (GST_VAAPI_ENCODER_RATE_CONTROL (encoder) == GST_VAAPI_RATECONTROL_CQP &&
2196 encoder->min_qp < encoder->init_qp))
2197 encoder->min_qp = encoder->init_qp;
2199 mb_size = encoder->mb_width * encoder->mb_height;
2200 if (encoder->num_slices > (mb_size + 1) / 2)
2201 encoder->num_slices = (mb_size + 1) / 2;
2202 g_assert (encoder->num_slices);
2204 if (encoder->num_bframes > (base_encoder->keyframe_period + 1) / 2)
2205 encoder->num_bframes = (base_encoder->keyframe_period + 1) / 2;
2207 if (encoder->num_bframes)
2208 encoder->cts_offset = GST_SECOND * GST_VAAPI_ENCODER_FPS_D (encoder) /
2209 GST_VAAPI_ENCODER_FPS_N (encoder);
2211 encoder->cts_offset = 0;
2213 /* init max_frame_num, max_poc */
2214 encoder->log2_max_frame_num =
2215 h264_get_log2_max_frame_num (encoder->idr_period);
2216 g_assert (encoder->log2_max_frame_num >= 4);
2217 encoder->max_frame_num = (1 << encoder->log2_max_frame_num);
2218 encoder->log2_max_pic_order_cnt = encoder->log2_max_frame_num + 1;
2219 encoder->max_pic_order_cnt = (1 << encoder->log2_max_pic_order_cnt);
2220 encoder->idr_num = 0;
2222 encoder->is_mvc = encoder->num_views > 1;
2223 for (i = 0; i < encoder->num_views; i++) {
2224 GstVaapiH264ViewRefPool *const ref_pool = &encoder->ref_pools[i];
2225 ref_pool->max_reflist0_count = 1;
2226 ref_pool->max_reflist1_count = encoder->num_bframes > 0;
2227 ref_pool->max_ref_frames = ref_pool->max_reflist0_count
2228 + ref_pool->max_reflist1_count;
2230 GstVaapiH264ViewReorderPool *const reorder_pool =
2231 &encoder->reorder_pools[i];
2232 reorder_pool->frame_index = 0;
2236 static GstVaapiEncoderStatus
2237 gst_vaapi_encoder_h264_encode (GstVaapiEncoder * base_encoder,
2238 GstVaapiEncPicture * picture, GstVaapiCodedBufferProxy * codedbuf)
2240 GstVaapiEncoderH264 *const encoder =
2241 GST_VAAPI_ENCODER_H264_CAST (base_encoder);
2242 GstVaapiEncoderStatus ret = GST_VAAPI_ENCODER_STATUS_ERROR_UNKNOWN;
2243 GstVaapiSurfaceProxy *reconstruct = NULL;
2245 reconstruct = gst_vaapi_encoder_create_surface (base_encoder);
2247 g_assert (GST_VAAPI_SURFACE_PROXY_SURFACE (reconstruct));
2249 if (!ensure_sequence (encoder, picture))
2251 if (!ensure_misc_params (encoder, picture))
2253 if (!ensure_picture (encoder, picture, codedbuf, reconstruct))
2255 if (!ensure_slices (encoder, picture))
2257 if (!gst_vaapi_enc_picture_encode (picture))
2260 if (!reference_list_update (encoder, picture, reconstruct))
2263 return GST_VAAPI_ENCODER_STATUS_SUCCESS;
2266 gst_vaapi_encoder_release_surface (GST_VAAPI_ENCODER (encoder),
2271 static GstVaapiEncoderStatus
2272 gst_vaapi_encoder_h264_flush (GstVaapiEncoder * base_encoder)
2274 GstVaapiEncoderH264 *const encoder =
2275 GST_VAAPI_ENCODER_H264_CAST (base_encoder);
2276 GstVaapiH264ViewReorderPool *reorder_pool;
2277 GstVaapiEncPicture *pic;
2280 for (i = 0; i < encoder->num_views; i++) {
2281 reorder_pool = &encoder->reorder_pools[i];
2282 reorder_pool->frame_index = 0;
2283 reorder_pool->cur_frame_num = 0;
2284 reorder_pool->cur_present_index = 0;
2286 while (!g_queue_is_empty (&reorder_pool->reorder_frame_list)) {
2287 pic = (GstVaapiEncPicture *)
2288 g_queue_pop_head (&reorder_pool->reorder_frame_list);
2289 gst_vaapi_enc_picture_unref (pic);
2291 g_queue_clear (&reorder_pool->reorder_frame_list);
2294 return GST_VAAPI_ENCODER_STATUS_SUCCESS;
2297 /* Generate "codec-data" buffer */
2298 static GstVaapiEncoderStatus
2299 gst_vaapi_encoder_h264_get_codec_data (GstVaapiEncoder * base_encoder,
2300 GstBuffer ** out_buffer_ptr)
2302 GstVaapiEncoderH264 *const encoder =
2303 GST_VAAPI_ENCODER_H264_CAST (base_encoder);
2304 const guint32 configuration_version = 0x01;
2305 const guint32 nal_length_size = 4;
2306 guint8 profile_idc, profile_comp, level_idc;
2307 GstMapInfo sps_info, pps_info;
2311 if (!encoder->sps_data || !encoder->pps_data)
2312 return GST_VAAPI_ENCODER_STATUS_ERROR_INVALID_HEADER;
2313 if (gst_buffer_get_size (encoder->sps_data) < 4)
2314 return GST_VAAPI_ENCODER_STATUS_ERROR_INVALID_HEADER;
2316 if (!gst_buffer_map (encoder->sps_data, &sps_info, GST_MAP_READ))
2317 goto error_map_sps_buffer;
2319 if (!gst_buffer_map (encoder->pps_data, &pps_info, GST_MAP_READ))
2320 goto error_map_pps_buffer;
2322 /* skip sps_data[0], which is the nal_unit_type */
2323 profile_idc = sps_info.data[1];
2324 profile_comp = sps_info.data[2];
2325 level_idc = sps_info.data[3];
2328 gst_bit_writer_init (&bs, (sps_info.size + pps_info.size + 64) * 8);
2329 WRITE_UINT32 (&bs, configuration_version, 8);
2330 WRITE_UINT32 (&bs, profile_idc, 8);
2331 WRITE_UINT32 (&bs, profile_comp, 8);
2332 WRITE_UINT32 (&bs, level_idc, 8);
2333 WRITE_UINT32 (&bs, 0x3f, 6); /* 111111 */
2334 WRITE_UINT32 (&bs, nal_length_size - 1, 2);
2335 WRITE_UINT32 (&bs, 0x07, 3); /* 111 */
2338 WRITE_UINT32 (&bs, 1, 5); /* SPS count = 1 */
2339 g_assert (GST_BIT_WRITER_BIT_SIZE (&bs) % 8 == 0);
2340 WRITE_UINT32 (&bs, sps_info.size, 16);
2341 gst_bit_writer_put_bytes (&bs, sps_info.data, sps_info.size);
2344 WRITE_UINT32 (&bs, 1, 8); /* PPS count = 1 */
2345 WRITE_UINT32 (&bs, pps_info.size, 16);
2346 gst_bit_writer_put_bytes (&bs, pps_info.data, pps_info.size);
2348 gst_buffer_unmap (encoder->pps_data, &pps_info);
2349 gst_buffer_unmap (encoder->sps_data, &sps_info);
2351 buffer = gst_buffer_new_wrapped (GST_BIT_WRITER_DATA (&bs),
2352 GST_BIT_WRITER_BIT_SIZE (&bs) / 8);
2354 goto error_alloc_buffer;
2355 *out_buffer_ptr = buffer;
2357 gst_bit_writer_clear (&bs, FALSE);
2358 return GST_VAAPI_ENCODER_STATUS_SUCCESS;
2363 GST_ERROR ("failed to write codec-data");
2364 gst_buffer_unmap (encoder->sps_data, &sps_info);
2365 gst_buffer_unmap (encoder->pps_data, &pps_info);
2366 gst_bit_writer_clear (&bs, TRUE);
2369 error_map_sps_buffer:
2371 GST_ERROR ("failed to map SPS packed header");
2372 return GST_VAAPI_ENCODER_STATUS_ERROR_ALLOCATION_FAILED;
2374 error_map_pps_buffer:
2376 GST_ERROR ("failed to map PPS packed header");
2377 gst_buffer_unmap (encoder->sps_data, &sps_info);
2378 return GST_VAAPI_ENCODER_STATUS_ERROR_ALLOCATION_FAILED;
2382 GST_ERROR ("failed to allocate codec-data buffer");
2383 gst_bit_writer_clear (&bs, TRUE);
2384 return GST_VAAPI_ENCODER_STATUS_ERROR_ALLOCATION_FAILED;
2388 static GstVaapiEncoderStatus
2389 gst_vaapi_encoder_h264_reordering (GstVaapiEncoder * base_encoder,
2390 GstVideoCodecFrame * frame, GstVaapiEncPicture ** output)
2392 GstVaapiEncoderH264 *const encoder =
2393 GST_VAAPI_ENCODER_H264_CAST (base_encoder);
2394 GstVaapiH264ViewReorderPool *reorder_pool = NULL;
2395 GstVaapiEncPicture *picture;
2396 gboolean is_idr = FALSE;
2400 /* encoding views alternatively for MVC */
2401 if (encoder->is_mvc) {
2403 encoder->view_idx = frame->system_frame_number % MAX_NUM_VIEWS;
2405 encoder->view_idx = (encoder->view_idx + 1) % MAX_NUM_VIEWS;
2407 reorder_pool = &encoder->reorder_pools[encoder->view_idx];
2410 if (reorder_pool->reorder_state != GST_VAAPI_ENC_H264_REORD_DUMP_FRAMES)
2411 return GST_VAAPI_ENCODER_STATUS_NO_SURFACE;
2413 /* reorder_state = GST_VAAPI_ENC_H264_REORD_DUMP_FRAMES
2414 dump B frames from queue, sometime, there may also have P frame or I frame */
2415 g_assert (encoder->num_bframes > 0);
2416 g_return_val_if_fail (!g_queue_is_empty (&reorder_pool->reorder_frame_list),
2417 GST_VAAPI_ENCODER_STATUS_ERROR_UNKNOWN);
2418 picture = g_queue_pop_head (&reorder_pool->reorder_frame_list);
2420 if (g_queue_is_empty (&reorder_pool->reorder_frame_list)) {
2421 reorder_pool->reorder_state = GST_VAAPI_ENC_H264_REORD_WAIT_FRAMES;
2426 /* new frame coming */
2427 picture = GST_VAAPI_ENC_PICTURE_NEW (H264, encoder, frame);
2429 GST_WARNING ("create H264 picture failed, frame timestamp:%"
2430 GST_TIME_FORMAT, GST_TIME_ARGS (frame->pts));
2431 return GST_VAAPI_ENCODER_STATUS_ERROR_ALLOCATION_FAILED;
2433 ++reorder_pool->cur_present_index;
2434 picture->poc = ((reorder_pool->cur_present_index * 2) %
2435 encoder->max_pic_order_cnt);
2437 is_idr = (reorder_pool->frame_index == 0 ||
2438 reorder_pool->frame_index >= encoder->idr_period);
2440 /* check key frames */
2441 if (is_idr || GST_VIDEO_CODEC_FRAME_IS_FORCE_KEYFRAME (frame) ||
2442 (reorder_pool->frame_index %
2443 GST_VAAPI_ENCODER_KEYFRAME_PERIOD (encoder)) == 0) {
2444 ++reorder_pool->cur_frame_num;
2445 ++reorder_pool->frame_index;
2447 /* b frame enabled, check queue of reorder_frame_list */
2448 if (encoder->num_bframes
2449 && !g_queue_is_empty (&reorder_pool->reorder_frame_list)) {
2450 GstVaapiEncPicture *p_pic;
2452 p_pic = g_queue_pop_tail (&reorder_pool->reorder_frame_list);
2453 set_p_frame (p_pic, encoder);
2454 g_queue_foreach (&reorder_pool->reorder_frame_list,
2455 (GFunc) set_b_frame, encoder);
2456 ++reorder_pool->cur_frame_num;
2457 set_key_frame (picture, encoder, is_idr);
2458 g_queue_push_tail (&reorder_pool->reorder_frame_list, picture);
2460 reorder_pool->reorder_state = GST_VAAPI_ENC_H264_REORD_DUMP_FRAMES;
2461 } else { /* no b frames in queue */
2462 set_key_frame (picture, encoder, is_idr);
2463 g_assert (g_queue_is_empty (&reorder_pool->reorder_frame_list));
2464 if (encoder->num_bframes)
2465 reorder_pool->reorder_state = GST_VAAPI_ENC_H264_REORD_WAIT_FRAMES;
2470 /* new p/b frames coming */
2471 ++reorder_pool->frame_index;
2472 if (reorder_pool->reorder_state == GST_VAAPI_ENC_H264_REORD_WAIT_FRAMES &&
2473 g_queue_get_length (&reorder_pool->reorder_frame_list) <
2474 encoder->num_bframes) {
2475 g_queue_push_tail (&reorder_pool->reorder_frame_list, picture);
2476 return GST_VAAPI_ENCODER_STATUS_NO_SURFACE;
2479 ++reorder_pool->cur_frame_num;
2480 set_p_frame (picture, encoder);
2482 if (reorder_pool->reorder_state == GST_VAAPI_ENC_H264_REORD_WAIT_FRAMES) {
2483 g_queue_foreach (&reorder_pool->reorder_frame_list, (GFunc) set_b_frame,
2485 reorder_pool->reorder_state = GST_VAAPI_ENC_H264_REORD_DUMP_FRAMES;
2486 g_assert (!g_queue_is_empty (&reorder_pool->reorder_frame_list));
2491 frame = picture->frame;
2492 if (GST_CLOCK_TIME_IS_VALID (frame->pts))
2493 frame->pts += encoder->cts_offset;
2496 return GST_VAAPI_ENCODER_STATUS_SUCCESS;
2499 static GstVaapiEncoderStatus
2500 set_context_info (GstVaapiEncoder * base_encoder)
2502 GstVaapiEncoderH264 *const encoder =
2503 GST_VAAPI_ENCODER_H264_CAST (base_encoder);
2504 GstVideoInfo *const vip = GST_VAAPI_ENCODER_VIDEO_INFO (encoder);
2505 const guint DEFAULT_SURFACES_COUNT = 3;
2507 /* Maximum sizes for common headers (in bits) */
2510 MAX_SPS_HDR_SIZE = 16473,
2511 MAX_VUI_PARAMS_SIZE = 210,
2512 MAX_HRD_PARAMS_SIZE = 4103,
2513 MAX_PPS_HDR_SIZE = 101,
2514 MAX_SLICE_HDR_SIZE = 397 + 2572 + 6670 + 2402,
2517 if (!ensure_hw_profile (encoder))
2518 return GST_VAAPI_ENCODER_STATUS_ERROR_UNSUPPORTED_PROFILE;
2520 base_encoder->num_ref_frames =
2521 ((encoder->num_bframes ? 2 : 1) + DEFAULT_SURFACES_COUNT)
2522 * encoder->num_views;
2524 /* Only YUV 4:2:0 formats are supported for now. This means that we
2525 have a limit of 3200 bits per macroblock. */
2526 /* XXX: check profile and compute RawMbBits */
2527 base_encoder->codedbuf_size = (GST_ROUND_UP_16 (vip->width) *
2528 GST_ROUND_UP_16 (vip->height) / 256) * 400;
2530 /* Account for SPS header */
2531 /* XXX: exclude scaling lists, MVC/SVC extensions */
2532 base_encoder->codedbuf_size += 4 + GST_ROUND_UP_8 (MAX_SPS_HDR_SIZE +
2533 MAX_VUI_PARAMS_SIZE + 2 * MAX_HRD_PARAMS_SIZE) / 8;
2535 /* Account for PPS header */
2536 /* XXX: exclude slice groups, scaling lists, MVC/SVC extensions */
2537 base_encoder->codedbuf_size += 4 + GST_ROUND_UP_8 (MAX_PPS_HDR_SIZE) / 8;
2539 /* Account for slice header */
2540 base_encoder->codedbuf_size += encoder->num_slices * (4 +
2541 GST_ROUND_UP_8 (MAX_SLICE_HDR_SIZE) / 8);
2543 return GST_VAAPI_ENCODER_STATUS_SUCCESS;
2546 static GstVaapiEncoderStatus
2547 gst_vaapi_encoder_h264_reconfigure (GstVaapiEncoder * base_encoder)
2549 GstVaapiEncoderH264 *const encoder =
2550 GST_VAAPI_ENCODER_H264_CAST (base_encoder);
2551 GstVaapiEncoderStatus status;
2552 guint mb_width, mb_height;
2554 mb_width = (GST_VAAPI_ENCODER_WIDTH (encoder) + 15) / 16;
2555 mb_height = (GST_VAAPI_ENCODER_HEIGHT (encoder) + 15) / 16;
2556 if (mb_width != encoder->mb_width || mb_height != encoder->mb_height) {
2557 GST_DEBUG ("resolution: %dx%d", GST_VAAPI_ENCODER_WIDTH (encoder),
2558 GST_VAAPI_ENCODER_HEIGHT (encoder));
2559 encoder->mb_width = mb_width;
2560 encoder->mb_height = mb_height;
2561 encoder->config_changed = TRUE;
2564 status = ensure_profile_and_level (encoder);
2565 if (status != GST_VAAPI_ENCODER_STATUS_SUCCESS)
2568 reset_properties (encoder);
2569 return set_context_info (base_encoder);
2573 gst_vaapi_encoder_h264_init (GstVaapiEncoder * base_encoder)
2575 GstVaapiEncoderH264 *const encoder =
2576 GST_VAAPI_ENCODER_H264_CAST (base_encoder);
2579 /* Multi-view coding information */
2580 encoder->is_mvc = FALSE;
2581 encoder->num_views = 1;
2582 encoder->view_idx = 0;
2584 /* re-ordering list initialize */
2585 for (i = 0; i < MAX_NUM_VIEWS; i++) {
2586 GstVaapiH264ViewReorderPool *const reorder_pool =
2587 &encoder->reorder_pools[i];
2588 g_queue_init (&reorder_pool->reorder_frame_list);
2589 reorder_pool->reorder_state = GST_VAAPI_ENC_H264_REORD_NONE;
2590 reorder_pool->frame_index = 0;
2591 reorder_pool->cur_frame_num = 0;
2592 reorder_pool->cur_present_index = 0;
2595 /* reference list info initialize */
2596 for (i = 0; i < MAX_NUM_VIEWS; i++) {
2597 GstVaapiH264ViewRefPool *const ref_pool = &encoder->ref_pools[i];
2598 g_queue_init (&ref_pool->ref_list);
2599 ref_pool->max_ref_frames = 0;
2600 ref_pool->max_reflist0_count = 1;
2601 ref_pool->max_reflist1_count = 1;
2608 gst_vaapi_encoder_h264_finalize (GstVaapiEncoder * base_encoder)
2610 /*free private buffers */
2611 GstVaapiEncoderH264 *const encoder =
2612 GST_VAAPI_ENCODER_H264_CAST (base_encoder);
2613 GstVaapiEncPicture *pic;
2614 GstVaapiEncoderH264Ref *ref;
2617 gst_buffer_replace (&encoder->sps_data, NULL);
2618 gst_buffer_replace (&encoder->subset_sps_data, NULL);
2619 gst_buffer_replace (&encoder->pps_data, NULL);
2621 /* reference list info de-init */
2622 for (i = 0; i < MAX_NUM_VIEWS; i++) {
2623 GstVaapiH264ViewRefPool *const ref_pool = &encoder->ref_pools[i];
2624 while (!g_queue_is_empty (&ref_pool->ref_list)) {
2625 ref = (GstVaapiEncoderH264Ref *) g_queue_pop_head (&ref_pool->ref_list);
2626 reference_pic_free (encoder, ref);
2628 g_queue_clear (&ref_pool->ref_list);
2631 /* re-ordering list initialize */
2632 for (i = 0; i < MAX_NUM_VIEWS; i++) {
2633 GstVaapiH264ViewReorderPool *const reorder_pool =
2634 &encoder->reorder_pools[i];
2635 while (!g_queue_is_empty (&reorder_pool->reorder_frame_list)) {
2636 pic = (GstVaapiEncPicture *)
2637 g_queue_pop_head (&reorder_pool->reorder_frame_list);
2638 gst_vaapi_enc_picture_unref (pic);
2640 g_queue_clear (&reorder_pool->reorder_frame_list);
2644 static GstVaapiEncoderStatus
2645 gst_vaapi_encoder_h264_set_property (GstVaapiEncoder * base_encoder,
2646 gint prop_id, const GValue * value)
2648 GstVaapiEncoderH264 *const encoder =
2649 GST_VAAPI_ENCODER_H264_CAST (base_encoder);
2652 case GST_VAAPI_ENCODER_H264_PROP_MAX_BFRAMES:
2653 encoder->num_bframes = g_value_get_uint (value);
2655 case GST_VAAPI_ENCODER_H264_PROP_INIT_QP:
2656 encoder->init_qp = g_value_get_uint (value);
2658 case GST_VAAPI_ENCODER_H264_PROP_MIN_QP:
2659 encoder->min_qp = g_value_get_uint (value);
2661 case GST_VAAPI_ENCODER_H264_PROP_NUM_SLICES:
2662 encoder->num_slices = g_value_get_uint (value);
2664 case GST_VAAPI_ENCODER_H264_PROP_CABAC:
2665 encoder->use_cabac = g_value_get_boolean (value);
2667 case GST_VAAPI_ENCODER_H264_PROP_DCT8X8:
2668 encoder->use_dct8x8 = g_value_get_boolean (value);
2670 case GST_VAAPI_ENCODER_H264_PROP_CPB_LENGTH:
2671 encoder->cpb_length = g_value_get_uint (value);
2673 case GST_VAAPI_ENCODER_H264_PROP_NUM_VIEWS:
2674 encoder->num_views = g_value_get_uint (value);
2677 return GST_VAAPI_ENCODER_STATUS_ERROR_INVALID_PARAMETER;
2679 return GST_VAAPI_ENCODER_STATUS_SUCCESS;
2682 GST_VAAPI_ENCODER_DEFINE_CLASS_DATA (H264);
2684 static inline const GstVaapiEncoderClass *
2685 gst_vaapi_encoder_h264_class (void)
2687 static const GstVaapiEncoderClass GstVaapiEncoderH264Class = {
2688 GST_VAAPI_ENCODER_CLASS_INIT (H264, h264),
2689 .set_property = gst_vaapi_encoder_h264_set_property,
2690 .get_codec_data = gst_vaapi_encoder_h264_get_codec_data
2692 return &GstVaapiEncoderH264Class;
2696 * gst_vaapi_encoder_h264_new:
2697 * @display: a #GstVaapiDisplay
2699 * Creates a new #GstVaapiEncoder for H.264 encoding. Note that the
2700 * only supported output stream format is "byte-stream" format.
2702 * Return value: the newly allocated #GstVaapiEncoder object
2705 gst_vaapi_encoder_h264_new (GstVaapiDisplay * display)
2707 return gst_vaapi_encoder_new (gst_vaapi_encoder_h264_class (), display);
2711 * gst_vaapi_encoder_h264_get_default_properties:
2713 * Determines the set of common and H.264 specific encoder properties.
2714 * The caller owns an extra reference to the resulting array of
2715 * #GstVaapiEncoderPropInfo elements, so it shall be released with
2716 * g_ptr_array_unref() after usage.
2718 * Return value: the set of encoder properties for #GstVaapiEncoderH264,
2719 * or %NULL if an error occurred.
2722 gst_vaapi_encoder_h264_get_default_properties (void)
2724 const GstVaapiEncoderClass *const klass = gst_vaapi_encoder_h264_class ();
2727 props = gst_vaapi_encoder_properties_get_default (klass);
2732 * GstVaapiEncoderH264:max-bframes:
2734 * The number of B-frames between I and P.
2736 GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
2737 GST_VAAPI_ENCODER_H264_PROP_MAX_BFRAMES,
2738 g_param_spec_uint ("max-bframes",
2739 "Max B-Frames", "Number of B-frames between I and P", 0, 10, 0,
2740 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
2743 * GstVaapiEncoderH264:init-qp:
2745 * The initial quantizer value.
2747 GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
2748 GST_VAAPI_ENCODER_H264_PROP_INIT_QP,
2749 g_param_spec_uint ("init-qp",
2750 "Initial QP", "Initial quantizer value", 1, 51, 26,
2751 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
2754 * GstVaapiEncoderH264:min-qp:
2756 * The minimum quantizer value.
2758 GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
2759 GST_VAAPI_ENCODER_H264_PROP_MIN_QP,
2760 g_param_spec_uint ("min-qp",
2761 "Minimum QP", "Minimum quantizer value", 1, 51, 1,
2762 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
2765 * GstVaapiEncoderH264:num-slices:
2767 * The number of slices per frame.
2769 GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
2770 GST_VAAPI_ENCODER_H264_PROP_NUM_SLICES,
2771 g_param_spec_uint ("num-slices",
2773 "Number of slices per frame",
2774 1, 200, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
2777 * GstVaapiEncoderH264:cabac:
2779 * Enable CABAC entropy coding mode for improved compression ratio,
2780 * at the expense that the minimum target profile is Main. Default
2781 * is CAVLC entropy coding mode.
2783 GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
2784 GST_VAAPI_ENCODER_H264_PROP_CABAC,
2785 g_param_spec_boolean ("cabac",
2787 "Enable CABAC entropy coding mode",
2788 FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
2791 * GstVaapiEncoderH264:dct8x8:
2793 * Enable adaptive use of 8x8 transforms in I-frames. This improves
2794 * the compression ratio by the minimum target profile is High.
2795 * Default is to use 4x4 DCT only.
2797 GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
2798 GST_VAAPI_ENCODER_H264_PROP_DCT8X8,
2799 g_param_spec_boolean ("dct8x8",
2801 "Enable adaptive use of 8x8 transforms in I-frames",
2802 FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
2805 * GstVaapiEncoderH264:cpb-length:
2807 * The size of the CPB buffer in milliseconds.
2809 GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
2810 GST_VAAPI_ENCODER_H264_PROP_CPB_LENGTH,
2811 g_param_spec_uint ("cpb-length",
2812 "CPB Length", "Length of the CPB buffer in milliseconds",
2813 1, 10000, DEFAULT_CPB_LENGTH,
2814 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
2817 * GstVaapiEncoderH264:num-views:
2819 * The number of views for MVC encoding .
2821 GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
2822 GST_VAAPI_ENCODER_H264_PROP_NUM_VIEWS,
2823 g_param_spec_uint ("num-views",
2825 "Number of Views for MVC encoding",
2826 1, MAX_NUM_VIEWS, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
2832 * gst_vaapi_encoder_h264_set_max_profile:
2833 * @encoder: a #GstVaapiEncoderH264
2834 * @profile: an H.264 #GstVaapiProfile
2836 * Notifies the @encoder to use coding tools from the supplied
2839 * This means that if the minimal profile derived to
2840 * support the specified coding tools is greater than this @profile,
2841 * then an error is returned when the @encoder is configured.
2843 * Return value: %TRUE on success
2846 gst_vaapi_encoder_h264_set_max_profile (GstVaapiEncoderH264 * encoder,
2847 GstVaapiProfile profile)
2851 g_return_val_if_fail (encoder != NULL, FALSE);
2852 g_return_val_if_fail (profile != GST_VAAPI_PROFILE_UNKNOWN, FALSE);
2854 if (gst_vaapi_profile_get_codec (profile) != GST_VAAPI_CODEC_H264)
2857 profile_idc = gst_vaapi_utils_h264_get_profile_idc (profile);
2861 encoder->max_profile_idc = profile_idc;
2866 * gst_vaapi_encoder_h264_get_profile_and_level:
2867 * @encoder: a #GstVaapiEncoderH264
2868 * @out_profile_ptr: return location for the #GstVaapiProfile
2869 * @out_level_ptr: return location for the #GstVaapiLevelH264
2871 * Queries the H.264 @encoder for the active profile and level. That
2872 * information is only constructed and valid after the encoder is
2873 * configured, i.e. after the gst_vaapi_encoder_set_codec_state()
2874 * function is called.
2876 * Return value: %TRUE on success
2879 gst_vaapi_encoder_h264_get_profile_and_level (GstVaapiEncoderH264 * encoder,
2880 GstVaapiProfile * out_profile_ptr, GstVaapiLevelH264 * out_level_ptr)
2882 g_return_val_if_fail (encoder != NULL, FALSE);
2884 if (!encoder->profile || !encoder->level)
2887 if (out_profile_ptr)
2888 *out_profile_ptr = encoder->profile;
2890 *out_level_ptr = encoder->level;