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;
743 guint32 max_frame_num;
744 guint32 log2_max_frame_num;
745 guint32 max_pic_order_cnt;
746 guint32 log2_max_pic_order_cnt;
748 guint8 pic_order_cnt_type;
749 guint8 delta_pic_order_always_zero_flag;
752 GstBuffer *subset_sps_data;
755 guint bitrate_bits; // bitrate (bits)
756 guint cpb_length; // length of CPB buffer (ms)
757 guint cpb_length_bits; // length of CPB buffer (bits)
763 GstVaapiH264ViewRefPool ref_pools[MAX_NUM_VIEWS];
764 GstVaapiH264ViewReorderPool reorder_pools[MAX_NUM_VIEWS];
767 /* Write a Slice NAL unit */
769 bs_write_slice (GstBitWriter * bs,
770 const VAEncSliceParameterBufferH264 * slice_param,
771 GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture)
773 const VAEncPictureParameterBufferH264 *const pic_param = picture->param;
774 guint32 field_pic_flag = 0;
775 guint32 ref_pic_list_modification_flag_l0 = 0;
776 guint32 ref_pic_list_modification_flag_l1 = 0;
777 guint32 no_output_of_prior_pics_flag = 0;
778 guint32 long_term_reference_flag = 0;
779 guint32 adaptive_ref_pic_marking_mode_flag = 0;
781 /* first_mb_in_slice */
782 WRITE_UE (bs, slice_param->macroblock_address);
784 WRITE_UE (bs, slice_param->slice_type);
785 /* pic_parameter_set_id */
786 WRITE_UE (bs, slice_param->pic_parameter_set_id);
788 WRITE_UINT32 (bs, picture->frame_num, encoder->log2_max_frame_num);
790 /* XXX: only frames (i.e. non-interlaced) are supported for now */
791 /* frame_mbs_only_flag == 0 */
794 if (GST_VAAPI_ENC_PICTURE_IS_IDR (picture))
795 WRITE_UE (bs, slice_param->idr_pic_id);
797 /* XXX: only POC type 0 is supported */
798 if (!encoder->pic_order_cnt_type) {
799 WRITE_UINT32 (bs, slice_param->pic_order_cnt_lsb,
800 encoder->log2_max_pic_order_cnt);
801 /* bottom_field_pic_order_in_frame_present_flag is FALSE */
802 if (pic_param->pic_fields.bits.pic_order_present_flag && !field_pic_flag)
803 WRITE_SE (bs, slice_param->delta_pic_order_cnt_bottom);
804 } else if (encoder->pic_order_cnt_type == 1 &&
805 !encoder->delta_pic_order_always_zero_flag) {
806 WRITE_SE (bs, slice_param->delta_pic_order_cnt[0]);
807 if (pic_param->pic_fields.bits.pic_order_present_flag && !field_pic_flag)
808 WRITE_SE (bs, slice_param->delta_pic_order_cnt[1]);
810 /* redundant_pic_cnt_present_flag is FALSE, no redundant coded pictures */
812 /* only works for B-frames */
813 if (slice_param->slice_type == 1)
814 WRITE_UINT32 (bs, slice_param->direct_spatial_mv_pred_flag, 1);
816 /* not supporting SP slices */
817 if (slice_param->slice_type == 0 || slice_param->slice_type == 1) {
818 WRITE_UINT32 (bs, slice_param->num_ref_idx_active_override_flag, 1);
819 if (slice_param->num_ref_idx_active_override_flag) {
820 WRITE_UE (bs, slice_param->num_ref_idx_l0_active_minus1);
821 if (slice_param->slice_type == 1)
822 WRITE_UE (bs, slice_param->num_ref_idx_l1_active_minus1);
825 /* XXX: not supporting custom reference picture list modifications */
826 if ((slice_param->slice_type != 2) && (slice_param->slice_type != 4))
827 WRITE_UINT32 (bs, ref_pic_list_modification_flag_l0, 1);
828 if (slice_param->slice_type == 1)
829 WRITE_UINT32 (bs, ref_pic_list_modification_flag_l1, 1);
831 /* we have: weighted_pred_flag == FALSE and */
832 /* : weighted_bipred_idc == FALSE */
833 if ((pic_param->pic_fields.bits.weighted_pred_flag &&
834 (slice_param->slice_type == 0)) ||
835 ((pic_param->pic_fields.bits.weighted_bipred_idc == 1) &&
836 (slice_param->slice_type == 1))) {
837 /* XXXX: add pred_weight_table() */
840 /* dec_ref_pic_marking() */
841 if (slice_param->slice_type == 0 || slice_param->slice_type == 2) {
842 if (GST_VAAPI_ENC_PICTURE_IS_IDR (picture)) {
843 /* no_output_of_prior_pics_flag = 0 */
844 WRITE_UINT32 (bs, no_output_of_prior_pics_flag, 1);
845 /* long_term_reference_flag = 0 */
846 WRITE_UINT32 (bs, long_term_reference_flag, 1);
848 /* only sliding_window reference picture marking mode is supported */
849 /* adpative_ref_pic_marking_mode_flag = 0 */
850 WRITE_UINT32 (bs, adaptive_ref_pic_marking_mode_flag, 1);
855 if (pic_param->pic_fields.bits.entropy_coding_mode_flag &&
856 slice_param->slice_type != 2)
857 WRITE_UE (bs, slice_param->cabac_init_idc);
859 WRITE_SE (bs, slice_param->slice_qp_delta);
861 /* XXX: only supporting I, P and B type slices */
862 /* no sp_for_switch_flag and no slice_qs_delta */
864 if (pic_param->pic_fields.bits.deblocking_filter_control_present_flag) {
865 /* disable_deblocking_filter_idc */
866 WRITE_UE (bs, slice_param->disable_deblocking_filter_idc);
867 if (slice_param->disable_deblocking_filter_idc != 1) {
868 WRITE_SE (bs, slice_param->slice_alpha_c0_offset_div2);
869 WRITE_SE (bs, slice_param->slice_beta_offset_div2);
873 /* XXX: unsupported arbitrary slice ordering (ASO) */
874 /* num_slic_groups_minus1 should be zero */
880 GST_WARNING ("failed to write Slice NAL unit");
886 _check_sps_pps_status (GstVaapiEncoderH264 * encoder,
887 const guint8 * nal, guint32 size)
891 gboolean has_subset_sps;
895 has_subset_sps = !encoder->is_mvc || (encoder->subset_sps_data != NULL);
896 if (encoder->sps_data && encoder->pps_data && has_subset_sps)
899 nal_type = nal[0] & 0x1F;
901 case GST_H264_NAL_SPS:
902 encoder->sps_data = gst_buffer_new_allocate (NULL, size, NULL);
903 ret = gst_buffer_fill (encoder->sps_data, 0, nal, size);
904 g_assert (ret == size);
906 case GST_H264_NAL_SUBSET_SPS:
907 encoder->subset_sps_data = gst_buffer_new_allocate (NULL, size, NULL);
908 ret = gst_buffer_fill (encoder->subset_sps_data, 0, nal, size);
909 g_assert (ret == size);
911 case GST_H264_NAL_PPS:
912 encoder->pps_data = gst_buffer_new_allocate (NULL, size, NULL);
913 ret = gst_buffer_fill (encoder->pps_data, 0, nal, size);
914 g_assert (ret == size);
921 /* Determines the largest supported profile by the underlying hardware */
923 ensure_hw_profile_limits (GstVaapiEncoderH264 * encoder)
925 GstVaapiDisplay *const display = GST_VAAPI_ENCODER_DISPLAY (encoder);
927 guint i, profile_idc, max_profile_idc;
929 if (encoder->hw_max_profile_idc)
932 profiles = gst_vaapi_display_get_encode_profiles (display);
937 for (i = 0; i < profiles->len; i++) {
938 const GstVaapiProfile profile =
939 g_array_index (profiles, GstVaapiProfile, i);
940 profile_idc = gst_vaapi_utils_h264_get_profile_idc (profile);
943 if (max_profile_idc < profile_idc)
944 max_profile_idc = profile_idc;
946 g_array_unref (profiles);
948 encoder->hw_max_profile_idc = max_profile_idc;
952 /* Derives the profile supported by the underlying hardware */
954 ensure_hw_profile (GstVaapiEncoderH264 * encoder)
956 GstVaapiDisplay *const display = GST_VAAPI_ENCODER_DISPLAY (encoder);
957 GstVaapiEntrypoint entrypoint = GST_VAAPI_ENTRYPOINT_SLICE_ENCODE;
958 GstVaapiProfile profile, profiles[4];
959 guint i, num_profiles = 0;
961 profiles[num_profiles++] = encoder->profile;
962 switch (encoder->profile) {
963 case GST_VAAPI_PROFILE_H264_CONSTRAINED_BASELINE:
964 profiles[num_profiles++] = GST_VAAPI_PROFILE_H264_BASELINE;
965 profiles[num_profiles++] = GST_VAAPI_PROFILE_H264_MAIN;
967 case GST_VAAPI_PROFILE_H264_MAIN:
968 profiles[num_profiles++] = GST_VAAPI_PROFILE_H264_HIGH;
974 profile = GST_VAAPI_PROFILE_UNKNOWN;
975 for (i = 0; i < num_profiles; i++) {
976 if (gst_vaapi_display_has_encoder (display, profiles[i], entrypoint)) {
977 profile = profiles[i];
981 if (profile == GST_VAAPI_PROFILE_UNKNOWN)
982 goto error_unsupported_profile;
984 GST_VAAPI_ENCODER_CAST (encoder)->profile = profile;
988 error_unsupported_profile:
990 GST_ERROR ("unsupported HW profile (0x%08x)", encoder->profile);
995 /* Check target decoder constraints */
997 ensure_profile_limits (GstVaapiEncoderH264 * encoder)
999 GstVaapiProfile profile;
1001 if (!encoder->max_profile_idc
1002 || encoder->profile_idc <= encoder->max_profile_idc)
1005 GST_WARNING ("lowering coding tools to meet target decoder constraints");
1007 /* Try Main profile coding tools */
1008 if (encoder->max_profile_idc < 100) {
1009 encoder->use_dct8x8 = FALSE;
1010 profile = GST_VAAPI_PROFILE_H264_MAIN;
1013 /* Try Constrained Baseline profile coding tools */
1014 if (encoder->max_profile_idc < 77) {
1015 encoder->num_bframes = 0;
1016 encoder->use_cabac = FALSE;
1017 profile = GST_VAAPI_PROFILE_H264_CONSTRAINED_BASELINE;
1020 encoder->profile = profile;
1021 encoder->profile_idc = encoder->max_profile_idc;
1025 /* Derives the minimum profile from the active coding tools */
1027 ensure_profile (GstVaapiEncoderH264 * encoder)
1029 GstVaapiProfile profile;
1031 /* Always start from "constrained-baseline" profile for maximum
1033 profile = GST_VAAPI_PROFILE_H264_CONSTRAINED_BASELINE;
1035 /* Main profile coding tools */
1036 if (encoder->num_bframes > 0 || encoder->use_cabac)
1037 profile = GST_VAAPI_PROFILE_H264_MAIN;
1039 /* High profile coding tools */
1040 if (encoder->use_dct8x8)
1041 profile = GST_VAAPI_PROFILE_H264_HIGH;
1043 /* MVC profiles coding tools */
1044 if (encoder->num_views == 2)
1045 profile = GST_VAAPI_PROFILE_H264_STEREO_HIGH;
1046 else if (encoder->num_views > 2)
1047 profile = GST_VAAPI_PROFILE_H264_MULTIVIEW_HIGH;
1049 encoder->profile = profile;
1050 encoder->profile_idc = gst_vaapi_utils_h264_get_profile_idc (profile);
1054 /* Derives the level from the currently set limits */
1056 ensure_level (GstVaapiEncoderH264 * encoder)
1058 const guint cpb_factor = h264_get_cpb_nal_factor (encoder->profile);
1059 const GstVaapiH264LevelLimits *limits_table;
1060 guint i, num_limits, PicSizeMbs, MaxDpbMbs, MaxMBPS;
1062 PicSizeMbs = encoder->mb_width * encoder->mb_height;
1063 MaxDpbMbs = PicSizeMbs * ((encoder->num_bframes) ? 2 : 1);
1064 MaxMBPS = gst_util_uint64_scale_int_ceil (PicSizeMbs,
1065 GST_VAAPI_ENCODER_FPS_N (encoder), GST_VAAPI_ENCODER_FPS_D (encoder));
1067 limits_table = gst_vaapi_utils_h264_get_level_limits_table (&num_limits);
1068 for (i = 0; i < num_limits; i++) {
1069 const GstVaapiH264LevelLimits *const limits = &limits_table[i];
1070 if (PicSizeMbs <= limits->MaxFS &&
1071 MaxDpbMbs <= limits->MaxDpbMbs &&
1072 MaxMBPS <= limits->MaxMBPS && (!encoder->bitrate_bits
1073 || encoder->bitrate_bits <= (limits->MaxBR * cpb_factor)) &&
1074 (!encoder->cpb_length_bits ||
1075 encoder->cpb_length_bits <= (limits->MaxCPB * cpb_factor)))
1078 if (i == num_limits)
1079 goto error_unsupported_level;
1081 encoder->level = limits_table[i].level;
1082 encoder->level_idc = limits_table[i].level_idc;
1086 error_unsupported_level:
1088 GST_ERROR ("failed to find a suitable level matching codec config");
1093 /* Enable "high-compression" tuning options */
1095 ensure_tuning_high_compression (GstVaapiEncoderH264 * encoder)
1099 if (!ensure_hw_profile_limits (encoder))
1102 profile_idc = encoder->hw_max_profile_idc;
1103 if (encoder->max_profile_idc && encoder->max_profile_idc < profile_idc)
1104 profile_idc = encoder->max_profile_idc;
1106 /* Tuning options to enable Main profile */
1107 if (profile_idc >= 77 && profile_idc != 88) {
1108 encoder->use_cabac = TRUE;
1109 if (!encoder->num_bframes)
1110 encoder->num_bframes = 1;
1113 /* Tuning options to enable High profile */
1114 if (profile_idc >= 100) {
1115 encoder->use_dct8x8 = TRUE;
1120 /* Ensure tuning options */
1122 ensure_tuning (GstVaapiEncoderH264 * encoder)
1126 switch (GST_VAAPI_ENCODER_TUNE (encoder)) {
1127 case GST_VAAPI_ENCODER_TUNE_HIGH_COMPRESSION:
1128 success = ensure_tuning_high_compression (encoder);
1137 /* Handle new GOP starts */
1139 reset_gop_start (GstVaapiEncoderH264 * encoder)
1141 GstVaapiH264ViewReorderPool *const reorder_pool =
1142 &encoder->reorder_pools[encoder->view_idx];
1144 reorder_pool->frame_index = 1;
1145 reorder_pool->cur_frame_num = 0;
1146 reorder_pool->cur_present_index = 0;
1150 /* Marks the supplied picture as a B-frame */
1152 set_b_frame (GstVaapiEncPicture * pic, GstVaapiEncoderH264 * encoder)
1154 GstVaapiH264ViewReorderPool *const reorder_pool =
1155 &encoder->reorder_pools[encoder->view_idx];
1157 g_assert (pic && encoder);
1158 g_return_if_fail (pic->type == GST_VAAPI_PICTURE_TYPE_NONE);
1159 pic->type = GST_VAAPI_PICTURE_TYPE_B;
1160 pic->frame_num = (reorder_pool->cur_frame_num % encoder->max_frame_num);
1163 /* Marks the supplied picture as a P-frame */
1165 set_p_frame (GstVaapiEncPicture * pic, GstVaapiEncoderH264 * encoder)
1167 GstVaapiH264ViewReorderPool *const reorder_pool =
1168 &encoder->reorder_pools[encoder->view_idx];
1170 g_return_if_fail (pic->type == GST_VAAPI_PICTURE_TYPE_NONE);
1171 pic->type = GST_VAAPI_PICTURE_TYPE_P;
1172 pic->frame_num = (reorder_pool->cur_frame_num % encoder->max_frame_num);
1175 /* Marks the supplied picture as an I-frame */
1177 set_i_frame (GstVaapiEncPicture * pic, GstVaapiEncoderH264 * encoder)
1179 GstVaapiH264ViewReorderPool *const reorder_pool =
1180 &encoder->reorder_pools[encoder->view_idx];
1182 g_return_if_fail (pic->type == GST_VAAPI_PICTURE_TYPE_NONE);
1183 pic->type = GST_VAAPI_PICTURE_TYPE_I;
1184 pic->frame_num = (reorder_pool->cur_frame_num % encoder->max_frame_num);
1186 g_assert (pic->frame);
1187 GST_VIDEO_CODEC_FRAME_SET_SYNC_POINT (pic->frame);
1190 /* Marks the supplied picture as an IDR frame */
1192 set_idr_frame (GstVaapiEncPicture * pic, GstVaapiEncoderH264 * encoder)
1194 g_return_if_fail (pic->type == GST_VAAPI_PICTURE_TYPE_NONE);
1195 pic->type = GST_VAAPI_PICTURE_TYPE_I;
1198 GST_VAAPI_ENC_PICTURE_FLAG_SET (pic, GST_VAAPI_ENC_PICTURE_FLAG_IDR);
1200 g_assert (pic->frame);
1201 GST_VIDEO_CODEC_FRAME_SET_SYNC_POINT (pic->frame);
1204 /* Marks the supplied picture a a key-frame */
1206 set_key_frame (GstVaapiEncPicture * picture,
1207 GstVaapiEncoderH264 * encoder, gboolean is_idr)
1210 reset_gop_start (encoder);
1211 set_idr_frame (picture, encoder);
1213 set_i_frame (picture, encoder);
1216 /* Fills in VA HRD parameters */
1218 fill_hrd_params (GstVaapiEncoderH264 * encoder, VAEncMiscParameterHRD * hrd)
1220 if (encoder->bitrate_bits > 0) {
1221 hrd->buffer_size = encoder->cpb_length_bits;
1222 hrd->initial_buffer_fullness = hrd->buffer_size / 2;
1224 hrd->buffer_size = 0;
1225 hrd->initial_buffer_fullness = 0;
1229 /* Adds the supplied sequence header (SPS) to the list of packed
1230 headers to pass down as-is to the encoder */
1232 add_packed_sequence_header (GstVaapiEncoderH264 * encoder,
1233 GstVaapiEncPicture * picture, GstVaapiEncSequence * sequence)
1235 GstVaapiEncPackedHeader *packed_seq;
1237 VAEncPackedHeaderParameterBuffer packed_seq_param = { 0 };
1238 const VAEncSequenceParameterBufferH264 *const seq_param = sequence->param;
1239 GstVaapiProfile profile = encoder->profile;
1241 VAEncMiscParameterHRD hrd_params;
1242 guint32 data_bit_size;
1245 fill_hrd_params (encoder, &hrd_params);
1247 gst_bit_writer_init (&bs, 128 * 8);
1248 WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */
1249 bs_write_nal_header (&bs, GST_H264_NAL_REF_IDC_HIGH, GST_H264_NAL_SPS);
1251 /* Set High profile for encoding the MVC base view. Otherwise, some
1252 traditional decoder cannot recognize MVC profile streams with
1253 only the base view in there */
1254 if (profile == GST_VAAPI_PROFILE_H264_MULTIVIEW_HIGH ||
1255 profile == GST_VAAPI_PROFILE_H264_STEREO_HIGH)
1256 profile = GST_VAAPI_PROFILE_H264_HIGH;
1258 bs_write_sps (&bs, seq_param, profile, &hrd_params);
1260 g_assert (GST_BIT_WRITER_BIT_SIZE (&bs) % 8 == 0);
1261 data_bit_size = GST_BIT_WRITER_BIT_SIZE (&bs);
1262 data = GST_BIT_WRITER_DATA (&bs);
1264 packed_seq_param.type = VAEncPackedHeaderSequence;
1265 packed_seq_param.bit_length = data_bit_size;
1266 packed_seq_param.has_emulation_bytes = 0;
1268 packed_seq = gst_vaapi_enc_packed_header_new (GST_VAAPI_ENCODER (encoder),
1269 &packed_seq_param, sizeof (packed_seq_param),
1270 data, (data_bit_size + 7) / 8);
1271 g_assert (packed_seq);
1273 gst_vaapi_enc_picture_add_packed_header (picture, packed_seq);
1274 gst_vaapi_codec_object_replace (&packed_seq, NULL);
1276 /* store sps data */
1277 _check_sps_pps_status (encoder, data + 4, data_bit_size / 8 - 4);
1278 gst_bit_writer_clear (&bs, TRUE);
1284 GST_WARNING ("failed to write SPS NAL unit");
1285 gst_bit_writer_clear (&bs, TRUE);
1291 add_packed_sequence_header_mvc (GstVaapiEncoderH264 * encoder,
1292 GstVaapiEncPicture * picture, GstVaapiEncSequence * sequence)
1294 GstVaapiEncPackedHeader *packed_seq;
1296 VAEncPackedHeaderParameterBuffer packed_header_param_buffer = { 0 };
1297 const VAEncSequenceParameterBufferH264 *const seq_param = sequence->param;
1298 VAEncMiscParameterHRD hrd_params;
1299 guint32 data_bit_size;
1302 fill_hrd_params (encoder, &hrd_params);
1304 /* non-base layer, pack one subset sps */
1305 gst_bit_writer_init (&bs, 128 * 8);
1306 WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */
1307 bs_write_nal_header (&bs, GST_H264_NAL_REF_IDC_HIGH, GST_H264_NAL_SUBSET_SPS);
1309 bs_write_subset_sps (&bs, seq_param, encoder->profile, encoder->num_views,
1312 g_assert (GST_BIT_WRITER_BIT_SIZE (&bs) % 8 == 0);
1313 data_bit_size = GST_BIT_WRITER_BIT_SIZE (&bs);
1314 data = GST_BIT_WRITER_DATA (&bs);
1316 packed_header_param_buffer.type = VAEncPackedHeaderSequence;
1317 packed_header_param_buffer.bit_length = data_bit_size;
1318 packed_header_param_buffer.has_emulation_bytes = 0;
1320 packed_seq = gst_vaapi_enc_packed_header_new (GST_VAAPI_ENCODER (encoder),
1321 &packed_header_param_buffer, sizeof (packed_header_param_buffer),
1322 data, (data_bit_size + 7) / 8);
1323 g_assert (packed_seq);
1325 gst_vaapi_enc_picture_add_packed_header (picture, packed_seq);
1326 gst_vaapi_mini_object_replace ((GstVaapiMiniObject **) & packed_seq, NULL);
1328 /* store subset sps data */
1329 _check_sps_pps_status (encoder, data + 4, data_bit_size / 8 - 4);
1330 gst_bit_writer_clear (&bs, TRUE);
1336 GST_WARNING ("failed to write SPS NAL unit");
1337 gst_bit_writer_clear (&bs, TRUE);
1342 /* Adds the supplied picture header (PPS) to the list of packed
1343 headers to pass down as-is to the encoder */
1345 add_packed_picture_header (GstVaapiEncoderH264 * encoder,
1346 GstVaapiEncPicture * picture)
1348 GstVaapiEncPackedHeader *packed_pic;
1350 VAEncPackedHeaderParameterBuffer packed_pic_param = { 0 };
1351 const VAEncPictureParameterBufferH264 *const pic_param = picture->param;
1352 guint32 data_bit_size;
1355 gst_bit_writer_init (&bs, 128 * 8);
1356 WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */
1357 bs_write_nal_header (&bs, GST_H264_NAL_REF_IDC_HIGH, GST_H264_NAL_PPS);
1358 bs_write_pps (&bs, pic_param, encoder->profile);
1359 g_assert (GST_BIT_WRITER_BIT_SIZE (&bs) % 8 == 0);
1360 data_bit_size = GST_BIT_WRITER_BIT_SIZE (&bs);
1361 data = GST_BIT_WRITER_DATA (&bs);
1363 packed_pic_param.type = VAEncPackedHeaderPicture;
1364 packed_pic_param.bit_length = data_bit_size;
1365 packed_pic_param.has_emulation_bytes = 0;
1367 packed_pic = gst_vaapi_enc_packed_header_new (GST_VAAPI_ENCODER (encoder),
1368 &packed_pic_param, sizeof (packed_pic_param),
1369 data, (data_bit_size + 7) / 8);
1370 g_assert (packed_pic);
1372 gst_vaapi_enc_picture_add_packed_header (picture, packed_pic);
1373 gst_vaapi_codec_object_replace (&packed_pic, NULL);
1375 /* store pps data */
1376 _check_sps_pps_status (encoder, data + 4, data_bit_size / 8 - 4);
1377 gst_bit_writer_clear (&bs, TRUE);
1383 GST_WARNING ("failed to write PPS NAL unit");
1384 gst_bit_writer_clear (&bs, TRUE);
1390 get_nal_hdr_attributes (GstVaapiEncPicture * picture,
1391 guint8 * nal_ref_idc, guint8 * nal_unit_type)
1393 switch (picture->type) {
1394 case GST_VAAPI_PICTURE_TYPE_I:
1395 *nal_ref_idc = GST_H264_NAL_REF_IDC_HIGH;
1396 if (GST_VAAPI_ENC_PICTURE_IS_IDR (picture))
1397 *nal_unit_type = GST_H264_NAL_SLICE_IDR;
1399 *nal_unit_type = GST_H264_NAL_SLICE;
1401 case GST_VAAPI_PICTURE_TYPE_P:
1402 *nal_ref_idc = GST_H264_NAL_REF_IDC_MEDIUM;
1403 *nal_unit_type = GST_H264_NAL_SLICE;
1405 case GST_VAAPI_PICTURE_TYPE_B:
1406 *nal_ref_idc = GST_H264_NAL_REF_IDC_NONE;
1407 *nal_unit_type = GST_H264_NAL_SLICE;
1415 /* Adds the supplied prefix nal header to the list of packed
1416 headers to pass down as-is to the encoder */
1418 add_packed_prefix_nal_header (GstVaapiEncoderH264 * encoder,
1419 GstVaapiEncPicture * picture, GstVaapiEncSlice * slice)
1421 GstVaapiEncPackedHeader *packed_prefix_nal;
1423 VAEncPackedHeaderParameterBuffer packed_prefix_nal_param = { 0 };
1424 guint32 data_bit_size;
1426 guint8 nal_ref_idc, nal_unit_type;
1428 gst_bit_writer_init (&bs, 128 * 8);
1429 WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */
1431 if (!get_nal_hdr_attributes (picture, &nal_ref_idc, &nal_unit_type))
1433 nal_unit_type = GST_H264_NAL_PREFIX_UNIT;
1435 bs_write_nal_header (&bs, nal_ref_idc, nal_unit_type);
1436 bs_write_nal_header_mvc_extension (&bs, picture, encoder->view_idx);
1437 g_assert (GST_BIT_WRITER_BIT_SIZE (&bs) % 8 == 0);
1438 data_bit_size = GST_BIT_WRITER_BIT_SIZE (&bs);
1439 data = GST_BIT_WRITER_DATA (&bs);
1441 packed_prefix_nal_param.type = VAEncPackedHeaderRawData;
1442 packed_prefix_nal_param.bit_length = data_bit_size;
1443 packed_prefix_nal_param.has_emulation_bytes = 0;
1446 gst_vaapi_enc_packed_header_new (GST_VAAPI_ENCODER (encoder),
1447 &packed_prefix_nal_param, sizeof (packed_prefix_nal_param), data,
1448 (data_bit_size + 7) / 8);
1449 g_assert (packed_prefix_nal);
1451 gst_vaapi_enc_slice_add_packed_header (slice, packed_prefix_nal);
1452 gst_vaapi_codec_object_replace (&packed_prefix_nal, NULL);
1454 gst_bit_writer_clear (&bs, TRUE);
1461 GST_WARNING ("failed to write Prefix NAL unit header");
1462 gst_bit_writer_clear (&bs, TRUE);
1467 /* Adds the supplied slice header to the list of packed
1468 headers to pass down as-is to the encoder */
1470 add_packed_slice_header (GstVaapiEncoderH264 * encoder,
1471 GstVaapiEncPicture * picture, GstVaapiEncSlice * slice)
1473 GstVaapiEncPackedHeader *packed_slice;
1475 VAEncPackedHeaderParameterBuffer packed_slice_param = { 0 };
1476 const VAEncSliceParameterBufferH264 *const slice_param = slice->param;
1477 guint32 data_bit_size;
1479 guint8 nal_ref_idc, nal_unit_type;
1481 gst_bit_writer_init (&bs, 128 * 8);
1482 WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */
1484 if (!get_nal_hdr_attributes (picture, &nal_ref_idc, &nal_unit_type))
1486 /* pack nal_unit_header_mvc_extension() for the non base view */
1487 if (encoder->is_mvc && encoder->view_idx) {
1488 bs_write_nal_header (&bs, nal_ref_idc, GST_H264_NAL_SLICE_EXT);
1489 bs_write_nal_header_mvc_extension (&bs, picture, encoder->view_idx);
1491 bs_write_nal_header (&bs, nal_ref_idc, nal_unit_type);
1493 bs_write_slice (&bs, slice_param, encoder, picture);
1494 data_bit_size = GST_BIT_WRITER_BIT_SIZE (&bs);
1495 data = GST_BIT_WRITER_DATA (&bs);
1497 packed_slice_param.type = VAEncPackedHeaderSlice;
1498 packed_slice_param.bit_length = data_bit_size;
1499 packed_slice_param.has_emulation_bytes = 0;
1501 packed_slice = gst_vaapi_enc_packed_header_new (GST_VAAPI_ENCODER (encoder),
1502 &packed_slice_param, sizeof (packed_slice_param),
1503 data, (data_bit_size + 7) / 8);
1504 g_assert (packed_slice);
1506 gst_vaapi_enc_slice_add_packed_header (slice, packed_slice);
1507 gst_vaapi_codec_object_replace (&packed_slice, NULL);
1509 gst_bit_writer_clear (&bs, TRUE);
1515 GST_WARNING ("failed to write Slice NAL unit header");
1516 gst_bit_writer_clear (&bs, TRUE);
1521 /* Reference picture management */
1523 reference_pic_free (GstVaapiEncoderH264 * encoder, GstVaapiEncoderH264Ref * ref)
1528 gst_vaapi_encoder_release_surface (GST_VAAPI_ENCODER (encoder), ref->pic);
1529 g_slice_free (GstVaapiEncoderH264Ref, ref);
1532 static inline GstVaapiEncoderH264Ref *
1533 reference_pic_create (GstVaapiEncoderH264 * encoder,
1534 GstVaapiEncPicture * picture, GstVaapiSurfaceProxy * surface)
1536 GstVaapiEncoderH264Ref *const ref = g_slice_new0 (GstVaapiEncoderH264Ref);
1539 ref->frame_num = picture->frame_num;
1540 ref->poc = picture->poc;
1545 reference_list_update (GstVaapiEncoderH264 * encoder,
1546 GstVaapiEncPicture * picture, GstVaapiSurfaceProxy * surface)
1548 GstVaapiEncoderH264Ref *ref;
1549 GstVaapiH264ViewRefPool *const ref_pool =
1550 &encoder->ref_pools[encoder->view_idx];
1552 if (GST_VAAPI_PICTURE_TYPE_B == picture->type) {
1553 gst_vaapi_encoder_release_surface (GST_VAAPI_ENCODER (encoder), surface);
1556 if (GST_VAAPI_ENC_PICTURE_IS_IDR (picture)) {
1557 while (!g_queue_is_empty (&ref_pool->ref_list))
1558 reference_pic_free (encoder, g_queue_pop_head (&ref_pool->ref_list));
1559 } else if (g_queue_get_length (&ref_pool->ref_list) >=
1560 ref_pool->max_ref_frames) {
1561 reference_pic_free (encoder, g_queue_pop_head (&ref_pool->ref_list));
1563 ref = reference_pic_create (encoder, picture, surface);
1564 g_queue_push_tail (&ref_pool->ref_list, ref);
1565 g_assert (g_queue_get_length (&ref_pool->ref_list) <=
1566 ref_pool->max_ref_frames);
1571 reference_list_init (GstVaapiEncoderH264 * encoder,
1572 GstVaapiEncPicture * picture,
1573 GstVaapiEncoderH264Ref ** reflist_0,
1574 guint * reflist_0_count,
1575 GstVaapiEncoderH264Ref ** reflist_1, guint * reflist_1_count)
1577 GstVaapiEncoderH264Ref *tmp;
1578 GstVaapiH264ViewRefPool *const ref_pool =
1579 &encoder->ref_pools[encoder->view_idx];
1580 GList *iter, *list_0_start = NULL, *list_1_start = NULL;
1583 *reflist_0_count = 0;
1584 *reflist_1_count = 0;
1585 if (picture->type == GST_VAAPI_PICTURE_TYPE_I)
1588 iter = g_queue_peek_tail_link (&ref_pool->ref_list);
1589 for (; iter; iter = g_list_previous (iter)) {
1590 tmp = (GstVaapiEncoderH264Ref *) iter->data;
1591 g_assert (tmp && tmp->poc != picture->poc);
1592 if (_poc_greater_than (picture->poc, tmp->poc, encoder->max_pic_order_cnt)) {
1593 list_0_start = iter;
1594 list_1_start = g_list_next (iter);
1599 /* order reflist_0 */
1600 g_assert (list_0_start);
1601 iter = list_0_start;
1603 for (; iter; iter = g_list_previous (iter)) {
1604 reflist_0[count] = (GstVaapiEncoderH264Ref *) iter->data;
1607 *reflist_0_count = count;
1609 if (picture->type != GST_VAAPI_PICTURE_TYPE_B)
1612 /* order reflist_1 */
1614 iter = list_1_start;
1615 for (; iter; iter = g_list_next (iter)) {
1616 reflist_1[count] = (GstVaapiEncoderH264Ref *) iter->data;
1619 *reflist_1_count = count;
1623 /* Fills in VA sequence parameter buffer */
1625 fill_sequence (GstVaapiEncoderH264 * encoder, GstVaapiEncSequence * sequence)
1627 VAEncSequenceParameterBufferH264 *const seq_param = sequence->param;
1628 GstVaapiH264ViewRefPool *const ref_pool =
1629 &encoder->ref_pools[encoder->view_idx];
1631 memset (seq_param, 0, sizeof (VAEncSequenceParameterBufferH264));
1632 seq_param->seq_parameter_set_id = encoder->view_idx;
1633 seq_param->level_idc = encoder->level_idc;
1634 seq_param->intra_period = GST_VAAPI_ENCODER_KEYFRAME_PERIOD (encoder);
1635 seq_param->ip_period = 1 + encoder->num_bframes;
1636 seq_param->bits_per_second = encoder->bitrate_bits;
1638 seq_param->max_num_ref_frames = ref_pool->max_ref_frames;
1639 seq_param->picture_width_in_mbs = encoder->mb_width;
1640 seq_param->picture_height_in_mbs = encoder->mb_height;
1642 /*sequence field values */
1643 seq_param->seq_fields.value = 0;
1644 seq_param->seq_fields.bits.chroma_format_idc = 1;
1645 seq_param->seq_fields.bits.frame_mbs_only_flag = 1;
1646 seq_param->seq_fields.bits.mb_adaptive_frame_field_flag = FALSE;
1647 seq_param->seq_fields.bits.seq_scaling_matrix_present_flag = FALSE;
1648 /* direct_8x8_inference_flag default false */
1649 seq_param->seq_fields.bits.direct_8x8_inference_flag = FALSE;
1650 g_assert (encoder->log2_max_frame_num >= 4);
1651 seq_param->seq_fields.bits.log2_max_frame_num_minus4 =
1652 encoder->log2_max_frame_num - 4;
1653 /* picture order count */
1654 encoder->pic_order_cnt_type = seq_param->seq_fields.bits.pic_order_cnt_type =
1656 g_assert (encoder->log2_max_pic_order_cnt >= 4);
1657 seq_param->seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 =
1658 encoder->log2_max_pic_order_cnt - 4;
1660 seq_param->bit_depth_luma_minus8 = 0;
1661 seq_param->bit_depth_chroma_minus8 = 0;
1663 /* not used if pic_order_cnt_type == 0 */
1664 if (seq_param->seq_fields.bits.pic_order_cnt_type == 1) {
1665 encoder->delta_pic_order_always_zero_flag =
1666 seq_param->seq_fields.bits.delta_pic_order_always_zero_flag = TRUE;
1667 seq_param->num_ref_frames_in_pic_order_cnt_cycle = 0;
1668 seq_param->offset_for_non_ref_pic = 0;
1669 seq_param->offset_for_top_to_bottom_field = 0;
1670 memset (seq_param->offset_for_ref_frame, 0,
1671 sizeof (seq_param->offset_for_ref_frame));
1674 /* frame_cropping_flag */
1675 if ((GST_VAAPI_ENCODER_WIDTH (encoder) & 15) ||
1676 (GST_VAAPI_ENCODER_HEIGHT (encoder) & 15)) {
1677 static const guint SubWidthC[] = { 1, 2, 2, 1 };
1678 static const guint SubHeightC[] = { 1, 2, 1, 1 };
1679 const guint CropUnitX =
1680 SubWidthC[seq_param->seq_fields.bits.chroma_format_idc];
1681 const guint CropUnitY =
1682 SubHeightC[seq_param->seq_fields.bits.chroma_format_idc] *
1683 (2 - seq_param->seq_fields.bits.frame_mbs_only_flag);
1685 seq_param->frame_cropping_flag = 1;
1686 seq_param->frame_crop_left_offset = 0;
1687 seq_param->frame_crop_right_offset =
1688 (16 * encoder->mb_width -
1689 GST_VAAPI_ENCODER_WIDTH (encoder)) / CropUnitX;
1690 seq_param->frame_crop_top_offset = 0;
1691 seq_param->frame_crop_bottom_offset =
1692 (16 * encoder->mb_height -
1693 GST_VAAPI_ENCODER_HEIGHT (encoder)) / CropUnitY;
1696 /* VUI parameters are always set, at least for timing_info (framerate) */
1697 seq_param->vui_parameters_present_flag = TRUE;
1698 if (seq_param->vui_parameters_present_flag) {
1699 seq_param->vui_fields.bits.aspect_ratio_info_present_flag = FALSE;
1700 if (seq_param->vui_fields.bits.aspect_ratio_info_present_flag) {
1701 const GstVideoInfo *const vip = GST_VAAPI_ENCODER_VIDEO_INFO (encoder);
1702 seq_param->sar_width = GST_VIDEO_INFO_PAR_N (vip);
1703 seq_param->sar_height = GST_VIDEO_INFO_PAR_D (vip);
1705 seq_param->vui_fields.bits.bitstream_restriction_flag = FALSE;
1706 /* if vui_parameters_present_flag is TRUE and sps data belongs to
1707 * subset sps, timing_info_preset_flag should be zero (H.7.4.2.1.1) */
1708 seq_param->vui_fields.bits.timing_info_present_flag = !encoder->view_idx;
1709 if (seq_param->vui_fields.bits.timing_info_present_flag) {
1710 seq_param->num_units_in_tick = GST_VAAPI_ENCODER_FPS_D (encoder);
1711 seq_param->time_scale = GST_VAAPI_ENCODER_FPS_N (encoder) * 2;
1717 /* Fills in VA picture parameter buffer */
1719 fill_picture (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture,
1720 GstVaapiCodedBuffer * codedbuf, GstVaapiSurfaceProxy * surface)
1722 VAEncPictureParameterBufferH264 *const pic_param = picture->param;
1723 GstVaapiH264ViewRefPool *const ref_pool =
1724 &encoder->ref_pools[encoder->view_idx];
1725 GstVaapiEncoderH264Ref *ref_pic;
1729 memset (pic_param, 0, sizeof (VAEncPictureParameterBufferH264));
1731 /* reference list, */
1732 pic_param->CurrPic.picture_id = GST_VAAPI_SURFACE_PROXY_SURFACE_ID (surface);
1733 pic_param->CurrPic.TopFieldOrderCnt = picture->poc;
1735 if (picture->type != GST_VAAPI_PICTURE_TYPE_I) {
1736 for (reflist = g_queue_peek_head_link (&ref_pool->ref_list);
1737 reflist; reflist = g_list_next (reflist)) {
1738 ref_pic = reflist->data;
1739 g_assert (ref_pic && ref_pic->pic &&
1740 GST_VAAPI_SURFACE_PROXY_SURFACE_ID (ref_pic->pic) != VA_INVALID_ID);
1742 pic_param->ReferenceFrames[i].picture_id =
1743 GST_VAAPI_SURFACE_PROXY_SURFACE_ID (ref_pic->pic);
1746 g_assert (i <= 16 && i <= ref_pool->max_ref_frames);
1748 for (; i < 16; ++i) {
1749 pic_param->ReferenceFrames[i].picture_id = VA_INVALID_ID;
1751 pic_param->coded_buf = GST_VAAPI_OBJECT_ID (codedbuf);
1753 pic_param->pic_parameter_set_id = encoder->view_idx;
1754 pic_param->seq_parameter_set_id = encoder->view_idx;
1755 pic_param->last_picture = 0; /* means last encoding picture */
1756 pic_param->frame_num = picture->frame_num;
1757 pic_param->pic_init_qp = encoder->init_qp;
1758 pic_param->num_ref_idx_l0_active_minus1 =
1759 (ref_pool->max_reflist0_count ? (ref_pool->max_reflist0_count - 1) : 0);
1760 pic_param->num_ref_idx_l1_active_minus1 =
1761 (ref_pool->max_reflist1_count ? (ref_pool->max_reflist1_count - 1) : 0);
1762 pic_param->chroma_qp_index_offset = 0;
1763 pic_param->second_chroma_qp_index_offset = 0;
1765 /* set picture fields */
1766 pic_param->pic_fields.value = 0;
1767 pic_param->pic_fields.bits.idr_pic_flag =
1768 GST_VAAPI_ENC_PICTURE_IS_IDR (picture);
1769 pic_param->pic_fields.bits.reference_pic_flag =
1770 (picture->type != GST_VAAPI_PICTURE_TYPE_B);
1771 pic_param->pic_fields.bits.entropy_coding_mode_flag = encoder->use_cabac;
1772 pic_param->pic_fields.bits.weighted_pred_flag = FALSE;
1773 pic_param->pic_fields.bits.weighted_bipred_idc = 0;
1774 pic_param->pic_fields.bits.constrained_intra_pred_flag = 0;
1775 pic_param->pic_fields.bits.transform_8x8_mode_flag = encoder->use_dct8x8;
1776 /* enable debloking */
1777 pic_param->pic_fields.bits.deblocking_filter_control_present_flag = TRUE;
1778 pic_param->pic_fields.bits.redundant_pic_cnt_present_flag = FALSE;
1779 /* bottom_field_pic_order_in_frame_present_flag */
1780 pic_param->pic_fields.bits.pic_order_present_flag = FALSE;
1781 pic_param->pic_fields.bits.pic_scaling_matrix_present_flag = FALSE;
1786 /* Adds slice headers to picture */
1788 add_slice_headers (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture,
1789 GstVaapiEncoderH264Ref ** reflist_0, guint reflist_0_count,
1790 GstVaapiEncoderH264Ref ** reflist_1, guint reflist_1_count)
1792 VAEncSliceParameterBufferH264 *slice_param;
1793 GstVaapiEncSlice *slice;
1794 guint slice_of_mbs, slice_mod_mbs, cur_slice_mbs;
1796 guint last_mb_index;
1797 guint i_slice, i_ref;
1801 mb_size = encoder->mb_width * encoder->mb_height;
1803 g_assert (encoder->num_slices && encoder->num_slices < mb_size);
1804 slice_of_mbs = mb_size / encoder->num_slices;
1805 slice_mod_mbs = mb_size % encoder->num_slices;
1807 for (i_slice = 0; i_slice < encoder->num_slices; ++i_slice) {
1808 cur_slice_mbs = slice_of_mbs;
1809 if (slice_mod_mbs) {
1813 slice = GST_VAAPI_ENC_SLICE_NEW (H264, encoder);
1814 g_assert (slice && slice->param_id != VA_INVALID_ID);
1815 slice_param = slice->param;
1817 memset (slice_param, 0, sizeof (VAEncSliceParameterBufferH264));
1818 slice_param->macroblock_address = last_mb_index;
1819 slice_param->num_macroblocks = cur_slice_mbs;
1820 slice_param->macroblock_info = VA_INVALID_ID;
1821 slice_param->slice_type = h264_get_slice_type (picture->type);
1822 g_assert (slice_param->slice_type != -1);
1823 slice_param->pic_parameter_set_id = encoder->view_idx;
1824 slice_param->idr_pic_id = encoder->idr_num;
1825 slice_param->pic_order_cnt_lsb = picture->poc;
1827 /* not used if pic_order_cnt_type = 0 */
1828 slice_param->delta_pic_order_cnt_bottom = 0;
1829 memset (slice_param->delta_pic_order_cnt, 0,
1830 sizeof (slice_param->delta_pic_order_cnt));
1832 /* only works for B frames */
1833 slice_param->direct_spatial_mv_pred_flag = FALSE;
1834 /* default equal to picture parameters */
1835 slice_param->num_ref_idx_active_override_flag = FALSE;
1836 if (picture->type != GST_VAAPI_PICTURE_TYPE_I && reflist_0_count > 0)
1837 slice_param->num_ref_idx_l0_active_minus1 = reflist_0_count - 1;
1839 slice_param->num_ref_idx_l0_active_minus1 = 0;
1840 if (picture->type == GST_VAAPI_PICTURE_TYPE_B && reflist_1_count > 0)
1841 slice_param->num_ref_idx_l1_active_minus1 = reflist_1_count - 1;
1843 slice_param->num_ref_idx_l1_active_minus1 = 0;
1844 g_assert (slice_param->num_ref_idx_l0_active_minus1 == 0);
1845 g_assert (slice_param->num_ref_idx_l1_active_minus1 == 0);
1848 if (picture->type != GST_VAAPI_PICTURE_TYPE_I) {
1849 for (; i_ref < reflist_0_count; ++i_ref) {
1850 slice_param->RefPicList0[i_ref].picture_id =
1851 GST_VAAPI_SURFACE_PROXY_SURFACE_ID (reflist_0[i_ref]->pic);
1853 g_assert (i_ref == 1);
1855 for (; i_ref < G_N_ELEMENTS (slice_param->RefPicList0); ++i_ref) {
1856 slice_param->RefPicList0[i_ref].picture_id = VA_INVALID_SURFACE;
1860 if (picture->type == GST_VAAPI_PICTURE_TYPE_B) {
1861 for (; i_ref < reflist_1_count; ++i_ref) {
1862 slice_param->RefPicList1[i_ref].picture_id =
1863 GST_VAAPI_SURFACE_PROXY_SURFACE_ID (reflist_1[i_ref]->pic);
1865 g_assert (i_ref == 1);
1867 for (; i_ref < G_N_ELEMENTS (slice_param->RefPicList1); ++i_ref) {
1868 slice_param->RefPicList1[i_ref].picture_id = VA_INVALID_SURFACE;
1871 /* not used if pic_param.pic_fields.bits.weighted_pred_flag == FALSE */
1872 slice_param->luma_log2_weight_denom = 0;
1873 slice_param->chroma_log2_weight_denom = 0;
1874 slice_param->luma_weight_l0_flag = FALSE;
1875 memset (slice_param->luma_weight_l0, 0,
1876 sizeof (slice_param->luma_weight_l0));
1877 memset (slice_param->luma_offset_l0, 0,
1878 sizeof (slice_param->luma_offset_l0));
1879 slice_param->chroma_weight_l0_flag = FALSE;
1880 memset (slice_param->chroma_weight_l0, 0,
1881 sizeof (slice_param->chroma_weight_l0));
1882 memset (slice_param->chroma_offset_l0, 0,
1883 sizeof (slice_param->chroma_offset_l0));
1884 slice_param->luma_weight_l1_flag = FALSE;
1885 memset (slice_param->luma_weight_l1, 0,
1886 sizeof (slice_param->luma_weight_l1));
1887 memset (slice_param->luma_offset_l1, 0,
1888 sizeof (slice_param->luma_offset_l1));
1889 slice_param->chroma_weight_l1_flag = FALSE;
1890 memset (slice_param->chroma_weight_l1, 0,
1891 sizeof (slice_param->chroma_weight_l1));
1892 memset (slice_param->chroma_offset_l1, 0,
1893 sizeof (slice_param->chroma_offset_l1));
1895 slice_param->cabac_init_idc = 0;
1896 slice_param->slice_qp_delta = encoder->init_qp - encoder->min_qp;
1897 if (slice_param->slice_qp_delta > 4)
1898 slice_param->slice_qp_delta = 4;
1899 slice_param->disable_deblocking_filter_idc = 0;
1900 slice_param->slice_alpha_c0_offset_div2 = 2;
1901 slice_param->slice_beta_offset_div2 = 2;
1903 /* set calculation for next slice */
1904 last_mb_index += cur_slice_mbs;
1906 /* add packed Prefix NAL unit before each Coded slice NAL in base view */
1907 if (encoder->is_mvc && !encoder->view_idx &&
1908 (GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) &
1909 VA_ENC_PACKED_HEADER_RAW_DATA)
1910 && !add_packed_prefix_nal_header (encoder, picture, slice))
1911 goto error_create_packed_prefix_nal_hdr;
1912 if ((GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) &
1913 VA_ENC_PACKED_HEADER_SLICE)
1914 && !add_packed_slice_header (encoder, picture, slice))
1915 goto error_create_packed_slice_hdr;
1917 gst_vaapi_enc_picture_add_slice (picture, slice);
1918 gst_vaapi_codec_object_replace (&slice, NULL);
1920 g_assert (last_mb_index == mb_size);
1923 error_create_packed_slice_hdr:
1925 GST_ERROR ("failed to create packed slice header buffer");
1926 gst_vaapi_codec_object_replace (&slice, NULL);
1929 error_create_packed_prefix_nal_hdr:
1931 GST_ERROR ("failed to create packed prefix nal header buffer");
1932 gst_vaapi_codec_object_replace (&slice, NULL);
1937 /* Generates and submits SPS header accordingly into the bitstream */
1939 ensure_sequence (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture)
1941 GstVaapiEncSequence *sequence = NULL;
1943 // Submit an SPS header before every new I-frame
1944 if (picture->type != GST_VAAPI_PICTURE_TYPE_I)
1947 sequence = GST_VAAPI_ENC_SEQUENCE_NEW (H264, encoder);
1948 if (!sequence || !fill_sequence (encoder, sequence))
1949 goto error_create_seq_param;
1951 /* add subset sps for non-base view and sps for base view */
1952 if (encoder->is_mvc && encoder->view_idx) {
1953 if ((GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) & VAEncPackedHeaderH264_SPS)
1954 && !add_packed_sequence_header_mvc (encoder, picture, sequence))
1955 goto error_create_packed_seq_hdr;
1957 if ((GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) & VAEncPackedHeaderH264_SPS)
1958 && !add_packed_sequence_header (encoder, picture, sequence))
1959 goto error_create_packed_seq_hdr;
1963 gst_vaapi_enc_picture_set_sequence (picture, sequence);
1964 gst_vaapi_codec_object_replace (&sequence, NULL);
1969 error_create_seq_param:
1971 GST_ERROR ("failed to create sequence parameter buffer (SPS)");
1972 gst_vaapi_codec_object_replace (&sequence, NULL);
1975 error_create_packed_seq_hdr:
1977 GST_ERROR ("failed to create packed sequence header buffer");
1978 gst_vaapi_codec_object_replace (&sequence, NULL);
1983 /* Generates additional control parameters */
1985 ensure_misc_params (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture)
1987 GstVaapiEncMiscParam *misc = NULL;
1988 VAEncMiscParameterRateControl *rate_control;
1991 misc = GST_VAAPI_ENC_MISC_PARAM_NEW (HRD, encoder);
1995 fill_hrd_params (encoder, misc->data);
1996 gst_vaapi_enc_picture_add_misc_param (picture, misc);
1997 gst_vaapi_codec_object_replace (&misc, NULL);
1999 /* RateControl params */
2000 if (GST_VAAPI_ENCODER_RATE_CONTROL (encoder) == GST_VAAPI_RATECONTROL_CBR ||
2001 GST_VAAPI_ENCODER_RATE_CONTROL (encoder) == GST_VAAPI_RATECONTROL_VBR) {
2002 misc = GST_VAAPI_ENC_MISC_PARAM_NEW (RateControl, encoder);
2006 rate_control = misc->data;
2007 memset (rate_control, 0, sizeof (VAEncMiscParameterRateControl));
2008 rate_control->bits_per_second = encoder->bitrate_bits;
2009 rate_control->target_percentage = 70;
2010 rate_control->window_size = encoder->cpb_length;
2011 rate_control->initial_qp = encoder->init_qp;
2012 rate_control->min_qp = encoder->min_qp;
2013 rate_control->basic_unit_size = 0;
2014 gst_vaapi_enc_picture_add_misc_param (picture, misc);
2015 gst_vaapi_codec_object_replace (&misc, NULL);
2020 /* Generates and submits PPS header accordingly into the bitstream */
2022 ensure_picture (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture,
2023 GstVaapiCodedBufferProxy * codedbuf_proxy, GstVaapiSurfaceProxy * surface)
2025 GstVaapiCodedBuffer *const codedbuf =
2026 GST_VAAPI_CODED_BUFFER_PROXY_BUFFER (codedbuf_proxy);
2027 gboolean res = FALSE;
2029 res = fill_picture (encoder, picture, codedbuf, surface);
2034 if (picture->type == GST_VAAPI_PICTURE_TYPE_I &&
2035 (GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) & VAEncPackedHeaderH264_PPS)
2036 && !add_packed_picture_header (encoder, picture)) {
2037 GST_ERROR ("set picture packed header failed");
2043 /* Generates slice headers */
2045 ensure_slices (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture)
2047 GstVaapiEncoderH264Ref *reflist_0[16];
2048 GstVaapiEncoderH264Ref *reflist_1[16];
2049 GstVaapiH264ViewRefPool *const ref_pool =
2050 &encoder->ref_pools[encoder->view_idx];
2051 guint reflist_0_count = 0, reflist_1_count = 0;
2055 if (picture->type != GST_VAAPI_PICTURE_TYPE_I &&
2056 !reference_list_init (encoder, picture,
2057 reflist_0, &reflist_0_count, reflist_1, &reflist_1_count)) {
2058 GST_ERROR ("reference list reorder failed");
2062 g_assert (reflist_0_count + reflist_1_count <= ref_pool->max_ref_frames);
2063 if (reflist_0_count > ref_pool->max_reflist0_count)
2064 reflist_0_count = ref_pool->max_reflist0_count;
2065 if (reflist_1_count > ref_pool->max_reflist1_count)
2066 reflist_1_count = ref_pool->max_reflist1_count;
2068 if (!add_slice_headers (encoder, picture,
2069 reflist_0, reflist_0_count, reflist_1, reflist_1_count))
2075 /* Normalizes bitrate (and CPB size) for HRD conformance */
2077 ensure_bitrate_hrd (GstVaapiEncoderH264 * encoder)
2079 GstVaapiEncoder *const base_encoder = GST_VAAPI_ENCODER_CAST (encoder);
2080 guint bitrate, cpb_size;
2082 if (!base_encoder->bitrate) {
2083 encoder->bitrate_bits = 0;
2087 /* Round down bitrate. This is a hard limit mandated by the user */
2088 g_assert (SX_BITRATE >= 6);
2089 bitrate = (base_encoder->bitrate * 1000) & ~((1U << SX_BITRATE) - 1);
2090 GST_DEBUG ("HRD bitrate: %u bits/sec", bitrate);
2091 encoder->bitrate_bits = bitrate;
2093 /* Round up CPB size. This is an HRD compliance detail */
2094 g_assert (SX_CPB_SIZE >= 4);
2095 cpb_size = gst_util_uint64_scale (bitrate, encoder->cpb_length, 1000) &
2096 ~((1U << SX_CPB_SIZE) - 1);
2097 GST_DEBUG ("HRD CPB size: %u bits", cpb_size);
2098 encoder->cpb_length_bits = cpb_size;
2101 /* Estimates a good enough bitrate if none was supplied */
2103 ensure_bitrate (GstVaapiEncoderH264 * encoder)
2105 GstVaapiEncoder *const base_encoder = GST_VAAPI_ENCODER_CAST (encoder);
2107 /* Default compression: 48 bits per macroblock in "high-compression" mode */
2108 switch (GST_VAAPI_ENCODER_RATE_CONTROL (encoder)) {
2109 case GST_VAAPI_RATECONTROL_CBR:
2110 case GST_VAAPI_RATECONTROL_VBR:
2111 case GST_VAAPI_RATECONTROL_VBR_CONSTRAINED:
2112 if (!base_encoder->bitrate) {
2113 /* According to the literature and testing, CABAC entropy coding
2114 mode could provide for +10% to +18% improvement in general,
2115 thus estimating +15% here ; and using adaptive 8x8 transforms
2116 in I-frames could bring up to +10% improvement. */
2117 guint bits_per_mb = 48;
2118 if (!encoder->use_cabac)
2119 bits_per_mb += (bits_per_mb * 15) / 100;
2120 if (!encoder->use_dct8x8)
2121 bits_per_mb += (bits_per_mb * 10) / 100;
2123 base_encoder->bitrate =
2124 encoder->mb_width * encoder->mb_height * bits_per_mb *
2125 GST_VAAPI_ENCODER_FPS_N (encoder) /
2126 GST_VAAPI_ENCODER_FPS_D (encoder) / 1000;
2127 GST_INFO ("target bitrate computed to %u kbps", base_encoder->bitrate);
2131 base_encoder->bitrate = 0;
2134 ensure_bitrate_hrd (encoder);
2137 /* Constructs profile and level information based on user-defined limits */
2138 static GstVaapiEncoderStatus
2139 ensure_profile_and_level (GstVaapiEncoderH264 * encoder)
2141 ensure_tuning (encoder);
2143 if (!ensure_profile (encoder) || !ensure_profile_limits (encoder))
2144 return GST_VAAPI_ENCODER_STATUS_ERROR_UNSUPPORTED_PROFILE;
2146 /* Check HW constraints */
2147 if (!ensure_hw_profile_limits (encoder))
2148 return GST_VAAPI_ENCODER_STATUS_ERROR_UNSUPPORTED_PROFILE;
2149 if (encoder->profile_idc > encoder->hw_max_profile_idc)
2150 return GST_VAAPI_ENCODER_STATUS_ERROR_UNSUPPORTED_PROFILE;
2152 /* Ensure bitrate if not set already and derive the right level to use */
2153 ensure_bitrate (encoder);
2154 if (!ensure_level (encoder))
2155 return GST_VAAPI_ENCODER_STATUS_ERROR_OPERATION_FAILED;
2156 return GST_VAAPI_ENCODER_STATUS_SUCCESS;
2160 reset_properties (GstVaapiEncoderH264 * encoder)
2162 GstVaapiEncoder *const base_encoder = GST_VAAPI_ENCODER_CAST (encoder);
2165 if (encoder->idr_period < base_encoder->keyframe_period)
2166 encoder->idr_period = base_encoder->keyframe_period;
2167 if (encoder->idr_period > MAX_IDR_PERIOD)
2168 encoder->idr_period = MAX_IDR_PERIOD;
2170 if (encoder->min_qp > encoder->init_qp ||
2171 (GST_VAAPI_ENCODER_RATE_CONTROL (encoder) == GST_VAAPI_RATECONTROL_CQP &&
2172 encoder->min_qp < encoder->init_qp))
2173 encoder->min_qp = encoder->init_qp;
2175 mb_size = encoder->mb_width * encoder->mb_height;
2176 if (encoder->num_slices > (mb_size + 1) / 2)
2177 encoder->num_slices = (mb_size + 1) / 2;
2178 g_assert (encoder->num_slices);
2180 if (encoder->num_bframes > (base_encoder->keyframe_period + 1) / 2)
2181 encoder->num_bframes = (base_encoder->keyframe_period + 1) / 2;
2183 if (encoder->num_bframes)
2184 encoder->cts_offset = GST_SECOND * GST_VAAPI_ENCODER_FPS_D (encoder) /
2185 GST_VAAPI_ENCODER_FPS_N (encoder);
2187 encoder->cts_offset = 0;
2189 /* init max_frame_num, max_poc */
2190 encoder->log2_max_frame_num =
2191 h264_get_log2_max_frame_num (encoder->idr_period);
2192 g_assert (encoder->log2_max_frame_num >= 4);
2193 encoder->max_frame_num = (1 << encoder->log2_max_frame_num);
2194 encoder->log2_max_pic_order_cnt = encoder->log2_max_frame_num + 1;
2195 encoder->max_pic_order_cnt = (1 << encoder->log2_max_pic_order_cnt);
2196 encoder->idr_num = 0;
2198 encoder->is_mvc = encoder->num_views > 1;
2199 for (i = 0; i < encoder->num_views; i++) {
2200 GstVaapiH264ViewRefPool *const ref_pool = &encoder->ref_pools[i];
2201 ref_pool->max_reflist0_count = 1;
2202 ref_pool->max_reflist1_count = encoder->num_bframes > 0;
2203 ref_pool->max_ref_frames = ref_pool->max_reflist0_count
2204 + ref_pool->max_reflist1_count;
2206 GstVaapiH264ViewReorderPool *const reorder_pool =
2207 &encoder->reorder_pools[i];
2208 reorder_pool->frame_index = 0;
2212 static GstVaapiEncoderStatus
2213 gst_vaapi_encoder_h264_encode (GstVaapiEncoder * base_encoder,
2214 GstVaapiEncPicture * picture, GstVaapiCodedBufferProxy * codedbuf)
2216 GstVaapiEncoderH264 *const encoder =
2217 GST_VAAPI_ENCODER_H264_CAST (base_encoder);
2218 GstVaapiEncoderStatus ret = GST_VAAPI_ENCODER_STATUS_ERROR_UNKNOWN;
2219 GstVaapiSurfaceProxy *reconstruct = NULL;
2221 reconstruct = gst_vaapi_encoder_create_surface (base_encoder);
2223 g_assert (GST_VAAPI_SURFACE_PROXY_SURFACE (reconstruct));
2225 if (!ensure_sequence (encoder, picture))
2227 if (!ensure_misc_params (encoder, picture))
2229 if (!ensure_picture (encoder, picture, codedbuf, reconstruct))
2231 if (!ensure_slices (encoder, picture))
2233 if (!gst_vaapi_enc_picture_encode (picture))
2236 if (!reference_list_update (encoder, picture, reconstruct))
2239 return GST_VAAPI_ENCODER_STATUS_SUCCESS;
2242 gst_vaapi_encoder_release_surface (GST_VAAPI_ENCODER (encoder),
2247 static GstVaapiEncoderStatus
2248 gst_vaapi_encoder_h264_flush (GstVaapiEncoder * base_encoder)
2250 GstVaapiEncoderH264 *const encoder =
2251 GST_VAAPI_ENCODER_H264_CAST (base_encoder);
2252 GstVaapiH264ViewReorderPool *reorder_pool;
2253 GstVaapiEncPicture *pic;
2256 for (i = 0; i < encoder->num_views; i++) {
2257 reorder_pool = &encoder->reorder_pools[i];
2258 reorder_pool->frame_index = 0;
2259 reorder_pool->cur_frame_num = 0;
2260 reorder_pool->cur_present_index = 0;
2262 while (!g_queue_is_empty (&reorder_pool->reorder_frame_list)) {
2263 pic = (GstVaapiEncPicture *)
2264 g_queue_pop_head (&reorder_pool->reorder_frame_list);
2265 gst_vaapi_enc_picture_unref (pic);
2267 g_queue_clear (&reorder_pool->reorder_frame_list);
2270 return GST_VAAPI_ENCODER_STATUS_SUCCESS;
2273 /* Generate "codec-data" buffer */
2274 static GstVaapiEncoderStatus
2275 gst_vaapi_encoder_h264_get_codec_data (GstVaapiEncoder * base_encoder,
2276 GstBuffer ** out_buffer_ptr)
2278 GstVaapiEncoderH264 *const encoder =
2279 GST_VAAPI_ENCODER_H264_CAST (base_encoder);
2280 const guint32 configuration_version = 0x01;
2281 const guint32 nal_length_size = 4;
2282 guint8 profile_idc, profile_comp, level_idc;
2283 GstMapInfo sps_info, pps_info;
2287 if (!encoder->sps_data || !encoder->pps_data)
2288 return GST_VAAPI_ENCODER_STATUS_ERROR_INVALID_HEADER;
2289 if (gst_buffer_get_size (encoder->sps_data) < 4)
2290 return GST_VAAPI_ENCODER_STATUS_ERROR_INVALID_HEADER;
2292 if (!gst_buffer_map (encoder->sps_data, &sps_info, GST_MAP_READ))
2293 goto error_map_sps_buffer;
2295 if (!gst_buffer_map (encoder->pps_data, &pps_info, GST_MAP_READ))
2296 goto error_map_pps_buffer;
2298 /* skip sps_data[0], which is the nal_unit_type */
2299 profile_idc = sps_info.data[1];
2300 profile_comp = sps_info.data[2];
2301 level_idc = sps_info.data[3];
2304 gst_bit_writer_init (&bs, (sps_info.size + pps_info.size + 64) * 8);
2305 WRITE_UINT32 (&bs, configuration_version, 8);
2306 WRITE_UINT32 (&bs, profile_idc, 8);
2307 WRITE_UINT32 (&bs, profile_comp, 8);
2308 WRITE_UINT32 (&bs, level_idc, 8);
2309 WRITE_UINT32 (&bs, 0x3f, 6); /* 111111 */
2310 WRITE_UINT32 (&bs, nal_length_size - 1, 2);
2311 WRITE_UINT32 (&bs, 0x07, 3); /* 111 */
2314 WRITE_UINT32 (&bs, 1, 5); /* SPS count = 1 */
2315 g_assert (GST_BIT_WRITER_BIT_SIZE (&bs) % 8 == 0);
2316 WRITE_UINT32 (&bs, sps_info.size, 16);
2317 gst_bit_writer_put_bytes (&bs, sps_info.data, sps_info.size);
2320 WRITE_UINT32 (&bs, 1, 8); /* PPS count = 1 */
2321 WRITE_UINT32 (&bs, pps_info.size, 16);
2322 gst_bit_writer_put_bytes (&bs, pps_info.data, pps_info.size);
2324 gst_buffer_unmap (encoder->pps_data, &pps_info);
2325 gst_buffer_unmap (encoder->sps_data, &sps_info);
2327 buffer = gst_buffer_new_wrapped (GST_BIT_WRITER_DATA (&bs),
2328 GST_BIT_WRITER_BIT_SIZE (&bs) / 8);
2330 goto error_alloc_buffer;
2331 *out_buffer_ptr = buffer;
2333 gst_bit_writer_clear (&bs, FALSE);
2334 return GST_VAAPI_ENCODER_STATUS_SUCCESS;
2339 GST_ERROR ("failed to write codec-data");
2340 gst_buffer_unmap (encoder->sps_data, &sps_info);
2341 gst_buffer_unmap (encoder->pps_data, &pps_info);
2342 gst_bit_writer_clear (&bs, TRUE);
2345 error_map_sps_buffer:
2347 GST_ERROR ("failed to map SPS packed header");
2348 return GST_VAAPI_ENCODER_STATUS_ERROR_ALLOCATION_FAILED;
2350 error_map_pps_buffer:
2352 GST_ERROR ("failed to map PPS packed header");
2353 gst_buffer_unmap (encoder->sps_data, &sps_info);
2354 return GST_VAAPI_ENCODER_STATUS_ERROR_ALLOCATION_FAILED;
2358 GST_ERROR ("failed to allocate codec-data buffer");
2359 gst_bit_writer_clear (&bs, TRUE);
2360 return GST_VAAPI_ENCODER_STATUS_ERROR_ALLOCATION_FAILED;
2364 static GstVaapiEncoderStatus
2365 gst_vaapi_encoder_h264_reordering (GstVaapiEncoder * base_encoder,
2366 GstVideoCodecFrame * frame, GstVaapiEncPicture ** output)
2368 GstVaapiEncoderH264 *const encoder =
2369 GST_VAAPI_ENCODER_H264_CAST (base_encoder);
2370 GstVaapiH264ViewReorderPool *reorder_pool = NULL;
2371 GstVaapiEncPicture *picture;
2372 gboolean is_idr = FALSE;
2376 /* encoding views alternatively for MVC */
2377 if (encoder->is_mvc) {
2379 encoder->view_idx = frame->system_frame_number % MAX_NUM_VIEWS;
2381 encoder->view_idx = (encoder->view_idx + 1) % MAX_NUM_VIEWS;
2383 reorder_pool = &encoder->reorder_pools[encoder->view_idx];
2386 if (reorder_pool->reorder_state != GST_VAAPI_ENC_H264_REORD_DUMP_FRAMES)
2387 return GST_VAAPI_ENCODER_STATUS_NO_SURFACE;
2389 /* reorder_state = GST_VAAPI_ENC_H264_REORD_DUMP_FRAMES
2390 dump B frames from queue, sometime, there may also have P frame or I frame */
2391 g_assert (encoder->num_bframes > 0);
2392 g_return_val_if_fail (!g_queue_is_empty (&reorder_pool->reorder_frame_list),
2393 GST_VAAPI_ENCODER_STATUS_ERROR_UNKNOWN);
2394 picture = g_queue_pop_head (&reorder_pool->reorder_frame_list);
2396 if (g_queue_is_empty (&reorder_pool->reorder_frame_list)) {
2397 reorder_pool->reorder_state = GST_VAAPI_ENC_H264_REORD_WAIT_FRAMES;
2402 /* new frame coming */
2403 picture = GST_VAAPI_ENC_PICTURE_NEW (H264, encoder, frame);
2405 GST_WARNING ("create H264 picture failed, frame timestamp:%"
2406 GST_TIME_FORMAT, GST_TIME_ARGS (frame->pts));
2407 return GST_VAAPI_ENCODER_STATUS_ERROR_ALLOCATION_FAILED;
2409 ++reorder_pool->cur_present_index;
2410 picture->poc = ((reorder_pool->cur_present_index * 2) %
2411 encoder->max_pic_order_cnt);
2413 is_idr = (reorder_pool->frame_index == 0 ||
2414 reorder_pool->frame_index >= encoder->idr_period);
2416 /* check key frames */
2417 if (is_idr || GST_VIDEO_CODEC_FRAME_IS_FORCE_KEYFRAME (frame) ||
2418 (reorder_pool->frame_index %
2419 GST_VAAPI_ENCODER_KEYFRAME_PERIOD (encoder)) == 0) {
2420 ++reorder_pool->cur_frame_num;
2421 ++reorder_pool->frame_index;
2423 /* b frame enabled, check queue of reorder_frame_list */
2424 if (encoder->num_bframes
2425 && !g_queue_is_empty (&reorder_pool->reorder_frame_list)) {
2426 GstVaapiEncPicture *p_pic;
2428 p_pic = g_queue_pop_tail (&reorder_pool->reorder_frame_list);
2429 set_p_frame (p_pic, encoder);
2430 g_queue_foreach (&reorder_pool->reorder_frame_list,
2431 (GFunc) set_b_frame, encoder);
2432 ++reorder_pool->cur_frame_num;
2433 set_key_frame (picture, encoder, is_idr);
2434 g_queue_push_tail (&reorder_pool->reorder_frame_list, picture);
2436 reorder_pool->reorder_state = GST_VAAPI_ENC_H264_REORD_DUMP_FRAMES;
2437 } else { /* no b frames in queue */
2438 set_key_frame (picture, encoder, is_idr);
2439 g_assert (g_queue_is_empty (&reorder_pool->reorder_frame_list));
2440 if (encoder->num_bframes)
2441 reorder_pool->reorder_state = GST_VAAPI_ENC_H264_REORD_WAIT_FRAMES;
2446 /* new p/b frames coming */
2447 ++reorder_pool->frame_index;
2448 if (reorder_pool->reorder_state == GST_VAAPI_ENC_H264_REORD_WAIT_FRAMES &&
2449 g_queue_get_length (&reorder_pool->reorder_frame_list) <
2450 encoder->num_bframes) {
2451 g_queue_push_tail (&reorder_pool->reorder_frame_list, picture);
2452 return GST_VAAPI_ENCODER_STATUS_NO_SURFACE;
2455 ++reorder_pool->cur_frame_num;
2456 set_p_frame (picture, encoder);
2458 if (reorder_pool->reorder_state == GST_VAAPI_ENC_H264_REORD_WAIT_FRAMES) {
2459 g_queue_foreach (&reorder_pool->reorder_frame_list, (GFunc) set_b_frame,
2461 reorder_pool->reorder_state = GST_VAAPI_ENC_H264_REORD_DUMP_FRAMES;
2462 g_assert (!g_queue_is_empty (&reorder_pool->reorder_frame_list));
2467 frame = picture->frame;
2468 if (GST_CLOCK_TIME_IS_VALID (frame->pts))
2469 frame->pts += encoder->cts_offset;
2472 return GST_VAAPI_ENCODER_STATUS_SUCCESS;
2475 static GstVaapiEncoderStatus
2476 set_context_info (GstVaapiEncoder * base_encoder)
2478 GstVaapiEncoderH264 *const encoder =
2479 GST_VAAPI_ENCODER_H264_CAST (base_encoder);
2480 GstVideoInfo *const vip = GST_VAAPI_ENCODER_VIDEO_INFO (encoder);
2481 const guint DEFAULT_SURFACES_COUNT = 3;
2483 /* Maximum sizes for common headers (in bits) */
2486 MAX_SPS_HDR_SIZE = 16473,
2487 MAX_VUI_PARAMS_SIZE = 210,
2488 MAX_HRD_PARAMS_SIZE = 4103,
2489 MAX_PPS_HDR_SIZE = 101,
2490 MAX_SLICE_HDR_SIZE = 397 + 2572 + 6670 + 2402,
2493 if (!ensure_hw_profile (encoder))
2494 return GST_VAAPI_ENCODER_STATUS_ERROR_UNSUPPORTED_PROFILE;
2496 base_encoder->num_ref_frames =
2497 ((encoder->num_bframes ? 2 : 1) + DEFAULT_SURFACES_COUNT)
2498 * encoder->num_views;
2500 /* Only YUV 4:2:0 formats are supported for now. This means that we
2501 have a limit of 3200 bits per macroblock. */
2502 /* XXX: check profile and compute RawMbBits */
2503 base_encoder->codedbuf_size = (GST_ROUND_UP_16 (vip->width) *
2504 GST_ROUND_UP_16 (vip->height) / 256) * 400;
2506 /* Account for SPS header */
2507 /* XXX: exclude scaling lists, MVC/SVC extensions */
2508 base_encoder->codedbuf_size += 4 + GST_ROUND_UP_8 (MAX_SPS_HDR_SIZE +
2509 MAX_VUI_PARAMS_SIZE + 2 * MAX_HRD_PARAMS_SIZE) / 8;
2511 /* Account for PPS header */
2512 /* XXX: exclude slice groups, scaling lists, MVC/SVC extensions */
2513 base_encoder->codedbuf_size += 4 + GST_ROUND_UP_8 (MAX_PPS_HDR_SIZE) / 8;
2515 /* Account for slice header */
2516 base_encoder->codedbuf_size += encoder->num_slices * (4 +
2517 GST_ROUND_UP_8 (MAX_SLICE_HDR_SIZE) / 8);
2519 return GST_VAAPI_ENCODER_STATUS_SUCCESS;
2522 static GstVaapiEncoderStatus
2523 gst_vaapi_encoder_h264_reconfigure (GstVaapiEncoder * base_encoder)
2525 GstVaapiEncoderH264 *const encoder =
2526 GST_VAAPI_ENCODER_H264_CAST (base_encoder);
2527 GstVaapiEncoderStatus status;
2529 encoder->mb_width = (GST_VAAPI_ENCODER_WIDTH (encoder) + 15) / 16;
2530 encoder->mb_height = (GST_VAAPI_ENCODER_HEIGHT (encoder) + 15) / 16;
2532 status = ensure_profile_and_level (encoder);
2533 if (status != GST_VAAPI_ENCODER_STATUS_SUCCESS)
2536 reset_properties (encoder);
2537 return set_context_info (base_encoder);
2541 gst_vaapi_encoder_h264_init (GstVaapiEncoder * base_encoder)
2543 GstVaapiEncoderH264 *const encoder =
2544 GST_VAAPI_ENCODER_H264_CAST (base_encoder);
2547 /* Multi-view coding information */
2548 encoder->is_mvc = FALSE;
2549 encoder->num_views = 1;
2550 encoder->view_idx = 0;
2552 /* re-ordering list initialize */
2553 for (i = 0; i < MAX_NUM_VIEWS; i++) {
2554 GstVaapiH264ViewReorderPool *const reorder_pool =
2555 &encoder->reorder_pools[i];
2556 g_queue_init (&reorder_pool->reorder_frame_list);
2557 reorder_pool->reorder_state = GST_VAAPI_ENC_H264_REORD_NONE;
2558 reorder_pool->frame_index = 0;
2559 reorder_pool->cur_frame_num = 0;
2560 reorder_pool->cur_present_index = 0;
2563 /* reference list info initialize */
2564 for (i = 0; i < MAX_NUM_VIEWS; i++) {
2565 GstVaapiH264ViewRefPool *const ref_pool = &encoder->ref_pools[i];
2566 g_queue_init (&ref_pool->ref_list);
2567 ref_pool->max_ref_frames = 0;
2568 ref_pool->max_reflist0_count = 1;
2569 ref_pool->max_reflist1_count = 1;
2576 gst_vaapi_encoder_h264_finalize (GstVaapiEncoder * base_encoder)
2578 /*free private buffers */
2579 GstVaapiEncoderH264 *const encoder =
2580 GST_VAAPI_ENCODER_H264_CAST (base_encoder);
2581 GstVaapiEncPicture *pic;
2582 GstVaapiEncoderH264Ref *ref;
2585 gst_buffer_replace (&encoder->sps_data, NULL);
2586 gst_buffer_replace (&encoder->subset_sps_data, NULL);
2587 gst_buffer_replace (&encoder->pps_data, NULL);
2589 /* reference list info de-init */
2590 for (i = 0; i < MAX_NUM_VIEWS; i++) {
2591 GstVaapiH264ViewRefPool *const ref_pool = &encoder->ref_pools[i];
2592 while (!g_queue_is_empty (&ref_pool->ref_list)) {
2593 ref = (GstVaapiEncoderH264Ref *) g_queue_pop_head (&ref_pool->ref_list);
2594 reference_pic_free (encoder, ref);
2596 g_queue_clear (&ref_pool->ref_list);
2599 /* re-ordering list initialize */
2600 for (i = 0; i < MAX_NUM_VIEWS; i++) {
2601 GstVaapiH264ViewReorderPool *const reorder_pool =
2602 &encoder->reorder_pools[i];
2603 while (!g_queue_is_empty (&reorder_pool->reorder_frame_list)) {
2604 pic = (GstVaapiEncPicture *)
2605 g_queue_pop_head (&reorder_pool->reorder_frame_list);
2606 gst_vaapi_enc_picture_unref (pic);
2608 g_queue_clear (&reorder_pool->reorder_frame_list);
2612 static GstVaapiEncoderStatus
2613 gst_vaapi_encoder_h264_set_property (GstVaapiEncoder * base_encoder,
2614 gint prop_id, const GValue * value)
2616 GstVaapiEncoderH264 *const encoder =
2617 GST_VAAPI_ENCODER_H264_CAST (base_encoder);
2620 case GST_VAAPI_ENCODER_H264_PROP_MAX_BFRAMES:
2621 encoder->num_bframes = g_value_get_uint (value);
2623 case GST_VAAPI_ENCODER_H264_PROP_INIT_QP:
2624 encoder->init_qp = g_value_get_uint (value);
2626 case GST_VAAPI_ENCODER_H264_PROP_MIN_QP:
2627 encoder->min_qp = g_value_get_uint (value);
2629 case GST_VAAPI_ENCODER_H264_PROP_NUM_SLICES:
2630 encoder->num_slices = g_value_get_uint (value);
2632 case GST_VAAPI_ENCODER_H264_PROP_CABAC:
2633 encoder->use_cabac = g_value_get_boolean (value);
2635 case GST_VAAPI_ENCODER_H264_PROP_DCT8X8:
2636 encoder->use_dct8x8 = g_value_get_boolean (value);
2638 case GST_VAAPI_ENCODER_H264_PROP_CPB_LENGTH:
2639 encoder->cpb_length = g_value_get_uint (value);
2641 case GST_VAAPI_ENCODER_H264_PROP_NUM_VIEWS:
2642 encoder->num_views = g_value_get_uint (value);
2645 return GST_VAAPI_ENCODER_STATUS_ERROR_INVALID_PARAMETER;
2647 return GST_VAAPI_ENCODER_STATUS_SUCCESS;
2650 GST_VAAPI_ENCODER_DEFINE_CLASS_DATA (H264);
2652 static inline const GstVaapiEncoderClass *
2653 gst_vaapi_encoder_h264_class (void)
2655 static const GstVaapiEncoderClass GstVaapiEncoderH264Class = {
2656 GST_VAAPI_ENCODER_CLASS_INIT (H264, h264),
2657 .set_property = gst_vaapi_encoder_h264_set_property,
2658 .get_codec_data = gst_vaapi_encoder_h264_get_codec_data
2660 return &GstVaapiEncoderH264Class;
2664 * gst_vaapi_encoder_h264_new:
2665 * @display: a #GstVaapiDisplay
2667 * Creates a new #GstVaapiEncoder for H.264 encoding. Note that the
2668 * only supported output stream format is "byte-stream" format.
2670 * Return value: the newly allocated #GstVaapiEncoder object
2673 gst_vaapi_encoder_h264_new (GstVaapiDisplay * display)
2675 return gst_vaapi_encoder_new (gst_vaapi_encoder_h264_class (), display);
2679 * gst_vaapi_encoder_h264_get_default_properties:
2681 * Determines the set of common and H.264 specific encoder properties.
2682 * The caller owns an extra reference to the resulting array of
2683 * #GstVaapiEncoderPropInfo elements, so it shall be released with
2684 * g_ptr_array_unref() after usage.
2686 * Return value: the set of encoder properties for #GstVaapiEncoderH264,
2687 * or %NULL if an error occurred.
2690 gst_vaapi_encoder_h264_get_default_properties (void)
2692 const GstVaapiEncoderClass *const klass = gst_vaapi_encoder_h264_class ();
2695 props = gst_vaapi_encoder_properties_get_default (klass);
2700 * GstVaapiEncoderH264:max-bframes:
2702 * The number of B-frames between I and P.
2704 GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
2705 GST_VAAPI_ENCODER_H264_PROP_MAX_BFRAMES,
2706 g_param_spec_uint ("max-bframes",
2707 "Max B-Frames", "Number of B-frames between I and P", 0, 10, 0,
2708 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
2711 * GstVaapiEncoderH264:init-qp:
2713 * The initial quantizer value.
2715 GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
2716 GST_VAAPI_ENCODER_H264_PROP_INIT_QP,
2717 g_param_spec_uint ("init-qp",
2718 "Initial QP", "Initial quantizer value", 1, 51, 26,
2719 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
2722 * GstVaapiEncoderH264:min-qp:
2724 * The minimum quantizer value.
2726 GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
2727 GST_VAAPI_ENCODER_H264_PROP_MIN_QP,
2728 g_param_spec_uint ("min-qp",
2729 "Minimum QP", "Minimum quantizer value", 1, 51, 1,
2730 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
2733 * GstVaapiEncoderH264:num-slices:
2735 * The number of slices per frame.
2737 GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
2738 GST_VAAPI_ENCODER_H264_PROP_NUM_SLICES,
2739 g_param_spec_uint ("num-slices",
2741 "Number of slices per frame",
2742 1, 200, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
2745 * GstVaapiEncoderH264:cabac:
2747 * Enable CABAC entropy coding mode for improved compression ratio,
2748 * at the expense that the minimum target profile is Main. Default
2749 * is CAVLC entropy coding mode.
2751 GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
2752 GST_VAAPI_ENCODER_H264_PROP_CABAC,
2753 g_param_spec_boolean ("cabac",
2755 "Enable CABAC entropy coding mode",
2756 FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
2759 * GstVaapiEncoderH264:dct8x8:
2761 * Enable adaptive use of 8x8 transforms in I-frames. This improves
2762 * the compression ratio by the minimum target profile is High.
2763 * Default is to use 4x4 DCT only.
2765 GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
2766 GST_VAAPI_ENCODER_H264_PROP_DCT8X8,
2767 g_param_spec_boolean ("dct8x8",
2769 "Enable adaptive use of 8x8 transforms in I-frames",
2770 FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
2773 * GstVaapiEncoderH264:cpb-length:
2775 * The size of the CPB buffer in milliseconds.
2777 GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
2778 GST_VAAPI_ENCODER_H264_PROP_CPB_LENGTH,
2779 g_param_spec_uint ("cpb-length",
2780 "CPB Length", "Length of the CPB buffer in milliseconds",
2781 1, 10000, DEFAULT_CPB_LENGTH,
2782 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
2785 * GstVaapiEncoderH264:num-views:
2787 * The number of views for MVC encoding .
2789 GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
2790 GST_VAAPI_ENCODER_H264_PROP_NUM_VIEWS,
2791 g_param_spec_uint ("num-views",
2793 "Number of Views for MVC encoding",
2794 1, MAX_NUM_VIEWS, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
2800 * gst_vaapi_encoder_h264_set_max_profile:
2801 * @encoder: a #GstVaapiEncoderH264
2802 * @profile: an H.264 #GstVaapiProfile
2804 * Notifies the @encoder to use coding tools from the supplied
2807 * This means that if the minimal profile derived to
2808 * support the specified coding tools is greater than this @profile,
2809 * then an error is returned when the @encoder is configured.
2811 * Return value: %TRUE on success
2814 gst_vaapi_encoder_h264_set_max_profile (GstVaapiEncoderH264 * encoder,
2815 GstVaapiProfile profile)
2819 g_return_val_if_fail (encoder != NULL, FALSE);
2820 g_return_val_if_fail (profile != GST_VAAPI_PROFILE_UNKNOWN, FALSE);
2822 if (gst_vaapi_profile_get_codec (profile) != GST_VAAPI_CODEC_H264)
2825 profile_idc = gst_vaapi_utils_h264_get_profile_idc (profile);
2829 encoder->max_profile_idc = profile_idc;
2834 * gst_vaapi_encoder_h264_get_profile_and_level:
2835 * @encoder: a #GstVaapiEncoderH264
2836 * @out_profile_ptr: return location for the #GstVaapiProfile
2837 * @out_level_ptr: return location for the #GstVaapiLevelH264
2839 * Queries the H.264 @encoder for the active profile and level. That
2840 * information is only constructed and valid after the encoder is
2841 * configured, i.e. after the gst_vaapi_encoder_set_codec_state()
2842 * function is called.
2844 * Return value: %TRUE on success
2847 gst_vaapi_encoder_h264_get_profile_and_level (GstVaapiEncoderH264 * encoder,
2848 GstVaapiProfile * out_profile_ptr, GstVaapiLevelH264 * out_level_ptr)
2850 g_return_val_if_fail (encoder != NULL, FALSE);
2852 if (!encoder->profile || !encoder->level)
2855 if (out_profile_ptr)
2856 *out_profile_ptr = encoder->profile;
2858 *out_level_ptr = encoder->level;