1 #include "quicksync_encoder.h"
3 #include <movit/image_format.h>
4 #include <movit/resource_pool.h> // Must be above the Xlib includes.
5 #include <movit/util.h>
7 #include <EGL/eglplatform.h>
10 #include <epoxy/egl.h>
18 #include <va/va_drm.h>
19 #include <va/va_drmcommon.h>
20 #include <va/va_enc_h264.h>
21 #include <va/va_x11.h>
24 #include <condition_variable>
39 #include <libavcodec/avcodec.h>
40 #include <libavformat/avio.h>
41 #include <libavutil/error.h>
42 #include <libdrm/drm_fourcc.h>
46 #include "audio_encoder.h"
49 #include "disk_space_estimator.h"
50 #include "ffmpeg_raii.h"
53 #include "print_latency.h"
54 #include "quicksync_encoder_impl.h"
55 #include "ref_counted_frame.h"
57 #include "x264_encoder.h"
59 using namespace movit;
61 using namespace std::chrono;
62 using namespace std::placeholders;
69 // These need to survive several QuickSyncEncoderImpl instances,
70 // so they are outside.
71 bool quick_sync_metrics_inited = false;
72 LatencyHistogram mixer_latency_histogram, qs_latency_histogram;
73 MuxMetrics current_file_mux_metrics, total_mux_metrics;
74 std::atomic<double> metric_current_file_start_time_seconds{0.0 / 0.0};
75 std::atomic<int64_t> metric_quick_sync_stalled_frames{0};
79 #define CHECK_VASTATUS(va_status, func) \
80 if (va_status != VA_STATUS_SUCCESS) { \
81 fprintf(stderr, "%s:%d (%s) failed with %d\n", __func__, __LINE__, func, va_status); \
85 #define BUFFER_OFFSET(i) ((char *)NULL + (i))
87 //#include "loadsurface.h"
89 #define NAL_REF_IDC_NONE 0
90 #define NAL_REF_IDC_LOW 1
91 #define NAL_REF_IDC_MEDIUM 2
92 #define NAL_REF_IDC_HIGH 3
100 #define SLICE_TYPE_P 0
101 #define SLICE_TYPE_B 1
102 #define SLICE_TYPE_I 2
103 #define IS_P_SLICE(type) (SLICE_TYPE_P == (type))
104 #define IS_B_SLICE(type) (SLICE_TYPE_B == (type))
105 #define IS_I_SLICE(type) (SLICE_TYPE_I == (type))
108 #define ENTROPY_MODE_CAVLC 0
109 #define ENTROPY_MODE_CABAC 1
111 #define PROFILE_IDC_BASELINE 66
112 #define PROFILE_IDC_MAIN 77
113 #define PROFILE_IDC_HIGH 100
115 #define BITSTREAM_ALLOCATE_STEPPING 4096
117 static constexpr unsigned int MaxFrameNum = (2<<16);
118 static constexpr unsigned int MaxPicOrderCntLsb = (2<<8);
119 static constexpr unsigned int Log2MaxFrameNum = 16;
120 static constexpr unsigned int Log2MaxPicOrderCntLsb = 8;
121 static constexpr int rc_default_modes[] = { // Priority list of modes.
124 VA_RC_VBR_CONSTRAINED,
132 // Supposedly vaRenderPicture() is supposed to destroy the buffer implicitly,
133 // but if we don't delete it here, we get leaks. The GStreamer implementation
135 static void render_picture_and_delete(VADisplay dpy, VAContextID context, VABufferID *buffers, int num_buffers)
137 VAStatus va_status = vaRenderPicture(dpy, context, buffers, num_buffers);
138 CHECK_VASTATUS(va_status, "vaRenderPicture");
140 for (int i = 0; i < num_buffers; ++i) {
141 va_status = vaDestroyBuffer(dpy, buffers[i]);
142 CHECK_VASTATUS(va_status, "vaDestroyBuffer");
147 va_swap32(unsigned int val)
149 unsigned char *pval = (unsigned char *)&val;
151 return ((pval[0] << 24) |
158 bitstream_start(bitstream *bs)
160 bs->max_size_in_dword = BITSTREAM_ALLOCATE_STEPPING;
161 bs->buffer = (unsigned int *)calloc(bs->max_size_in_dword * sizeof(int), 1);
166 bitstream_end(bitstream *bs)
168 int pos = (bs->bit_offset >> 5);
169 int bit_offset = (bs->bit_offset & 0x1f);
170 int bit_left = 32 - bit_offset;
173 bs->buffer[pos] = va_swap32((bs->buffer[pos] << bit_left));
178 bitstream_put_ui(bitstream *bs, unsigned int val, int size_in_bits)
180 int pos = (bs->bit_offset >> 5);
181 int bit_offset = (bs->bit_offset & 0x1f);
182 int bit_left = 32 - bit_offset;
187 bs->bit_offset += size_in_bits;
189 if (bit_left > size_in_bits) {
190 bs->buffer[pos] = (bs->buffer[pos] << size_in_bits | val);
192 size_in_bits -= bit_left;
193 if (bit_left >= 32) {
194 bs->buffer[pos] = (val >> size_in_bits);
196 bs->buffer[pos] = (bs->buffer[pos] << bit_left) | (val >> size_in_bits);
198 bs->buffer[pos] = va_swap32(bs->buffer[pos]);
200 if (pos + 1 == bs->max_size_in_dword) {
201 bs->max_size_in_dword += BITSTREAM_ALLOCATE_STEPPING;
202 bs->buffer = (unsigned int *)realloc(bs->buffer, bs->max_size_in_dword * sizeof(unsigned int));
205 bs->buffer[pos + 1] = val;
210 bitstream_put_ue(bitstream *bs, unsigned int val)
212 int size_in_bits = 0;
220 bitstream_put_ui(bs, 0, size_in_bits - 1); // leading zero
221 bitstream_put_ui(bs, val, size_in_bits);
225 bitstream_put_se(bitstream *bs, int val)
227 unsigned int new_val;
232 new_val = 2 * val - 1;
234 bitstream_put_ue(bs, new_val);
238 bitstream_byte_aligning(bitstream *bs, int bit)
240 int bit_offset = (bs->bit_offset & 0x7);
241 int bit_left = 8 - bit_offset;
247 assert(bit == 0 || bit == 1);
250 new_val = (1 << bit_left) - 1;
254 bitstream_put_ui(bs, new_val, bit_left);
258 rbsp_trailing_bits(bitstream *bs)
260 bitstream_put_ui(bs, 1, 1);
261 bitstream_byte_aligning(bs, 0);
264 static void nal_start_code_prefix(bitstream *bs)
266 bitstream_put_ui(bs, 0x00000001, 32);
269 static void nal_header(bitstream *bs, int nal_ref_idc, int nal_unit_type)
271 bitstream_put_ui(bs, 0, 1); /* forbidden_zero_bit: 0 */
272 bitstream_put_ui(bs, nal_ref_idc, 2);
273 bitstream_put_ui(bs, nal_unit_type, 5);
276 void QuickSyncEncoderImpl::sps_rbsp(YCbCrLumaCoefficients ycbcr_coefficients, bitstream *bs)
278 int profile_idc = PROFILE_IDC_BASELINE;
280 if (h264_profile == VAProfileH264High)
281 profile_idc = PROFILE_IDC_HIGH;
282 else if (h264_profile == VAProfileH264Main)
283 profile_idc = PROFILE_IDC_MAIN;
285 bitstream_put_ui(bs, profile_idc, 8); /* profile_idc */
286 bitstream_put_ui(bs, !!(constraint_set_flag & 1), 1); /* constraint_set0_flag */
287 bitstream_put_ui(bs, !!(constraint_set_flag & 2), 1); /* constraint_set1_flag */
288 bitstream_put_ui(bs, !!(constraint_set_flag & 4), 1); /* constraint_set2_flag */
289 bitstream_put_ui(bs, !!(constraint_set_flag & 8), 1); /* constraint_set3_flag */
290 bitstream_put_ui(bs, 0, 4); /* reserved_zero_4bits */
291 bitstream_put_ui(bs, seq_param.level_idc, 8); /* level_idc */
292 bitstream_put_ue(bs, seq_param.seq_parameter_set_id); /* seq_parameter_set_id */
294 if ( profile_idc == PROFILE_IDC_HIGH) {
295 bitstream_put_ue(bs, 1); /* chroma_format_idc = 1, 4:2:0 */
296 bitstream_put_ue(bs, 0); /* bit_depth_luma_minus8 */
297 bitstream_put_ue(bs, 0); /* bit_depth_chroma_minus8 */
298 bitstream_put_ui(bs, 0, 1); /* qpprime_y_zero_transform_bypass_flag */
299 bitstream_put_ui(bs, 0, 1); /* seq_scaling_matrix_present_flag */
302 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_frame_num_minus4); /* log2_max_frame_num_minus4 */
303 bitstream_put_ue(bs, seq_param.seq_fields.bits.pic_order_cnt_type); /* pic_order_cnt_type */
305 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0)
306 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4); /* log2_max_pic_order_cnt_lsb_minus4 */
311 bitstream_put_ue(bs, seq_param.max_num_ref_frames); /* num_ref_frames */
312 bitstream_put_ui(bs, 0, 1); /* gaps_in_frame_num_value_allowed_flag */
314 bitstream_put_ue(bs, seq_param.picture_width_in_mbs - 1); /* pic_width_in_mbs_minus1 */
315 bitstream_put_ue(bs, seq_param.picture_height_in_mbs - 1); /* pic_height_in_map_units_minus1 */
316 bitstream_put_ui(bs, seq_param.seq_fields.bits.frame_mbs_only_flag, 1); /* frame_mbs_only_flag */
318 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
322 bitstream_put_ui(bs, seq_param.seq_fields.bits.direct_8x8_inference_flag, 1); /* direct_8x8_inference_flag */
323 bitstream_put_ui(bs, seq_param.frame_cropping_flag, 1); /* frame_cropping_flag */
325 if (seq_param.frame_cropping_flag) {
326 bitstream_put_ue(bs, seq_param.frame_crop_left_offset); /* frame_crop_left_offset */
327 bitstream_put_ue(bs, seq_param.frame_crop_right_offset); /* frame_crop_right_offset */
328 bitstream_put_ue(bs, seq_param.frame_crop_top_offset); /* frame_crop_top_offset */
329 bitstream_put_ue(bs, seq_param.frame_crop_bottom_offset); /* frame_crop_bottom_offset */
332 //if ( frame_bit_rate < 0 ) { //TODO EW: the vui header isn't correct
334 bitstream_put_ui(bs, 0, 1); /* vui_parameters_present_flag */
336 // See H.264 annex E for the definition of this header.
337 bitstream_put_ui(bs, 1, 1); /* vui_parameters_present_flag */
338 bitstream_put_ui(bs, 0, 1); /* aspect_ratio_info_present_flag */
339 bitstream_put_ui(bs, 0, 1); /* overscan_info_present_flag */
340 bitstream_put_ui(bs, 1, 1); /* video_signal_type_present_flag */
342 bitstream_put_ui(bs, 5, 3); /* video_format (5 = Unspecified) */
343 bitstream_put_ui(bs, 0, 1); /* video_full_range_flag */
344 bitstream_put_ui(bs, 1, 1); /* colour_description_present_flag */
346 bitstream_put_ui(bs, 1, 8); /* colour_primaries (1 = BT.709) */
347 bitstream_put_ui(bs, 2, 8); /* transfer_characteristics (2 = unspecified, since we use sRGB) */
348 if (ycbcr_coefficients == YCBCR_REC_709) {
349 bitstream_put_ui(bs, 1, 8); /* matrix_coefficients (1 = BT.709) */
351 assert(ycbcr_coefficients == YCBCR_REC_601);
352 bitstream_put_ui(bs, 6, 8); /* matrix_coefficients (6 = BT.601/SMPTE 170M) */
356 bitstream_put_ui(bs, 0, 1); /* chroma_loc_info_present_flag */
357 bitstream_put_ui(bs, 1, 1); /* timing_info_present_flag */
359 bitstream_put_ui(bs, 1, 32); // FPS
360 bitstream_put_ui(bs, TIMEBASE * 2, 32); // FPS
361 bitstream_put_ui(bs, 1, 1);
363 bitstream_put_ui(bs, 1, 1); /* nal_hrd_parameters_present_flag */
366 bitstream_put_ue(bs, 0); /* cpb_cnt_minus1 */
367 bitstream_put_ui(bs, 4, 4); /* bit_rate_scale */
368 bitstream_put_ui(bs, 6, 4); /* cpb_size_scale */
370 bitstream_put_ue(bs, frame_bitrate - 1); /* bit_rate_value_minus1[0] */
371 bitstream_put_ue(bs, frame_bitrate*8 - 1); /* cpb_size_value_minus1[0] */
372 bitstream_put_ui(bs, 1, 1); /* cbr_flag[0] */
374 bitstream_put_ui(bs, 23, 5); /* initial_cpb_removal_delay_length_minus1 */
375 bitstream_put_ui(bs, 23, 5); /* cpb_removal_delay_length_minus1 */
376 bitstream_put_ui(bs, 23, 5); /* dpb_output_delay_length_minus1 */
377 bitstream_put_ui(bs, 23, 5); /* time_offset_length */
379 bitstream_put_ui(bs, 0, 1); /* vcl_hrd_parameters_present_flag */
380 bitstream_put_ui(bs, 0, 1); /* low_delay_hrd_flag */
382 bitstream_put_ui(bs, 0, 1); /* pic_struct_present_flag */
383 bitstream_put_ui(bs, 0, 1); /* bitstream_restriction_flag */
386 rbsp_trailing_bits(bs); /* rbsp_trailing_bits */
390 void QuickSyncEncoderImpl::pps_rbsp(bitstream *bs)
392 bitstream_put_ue(bs, pic_param.pic_parameter_set_id); /* pic_parameter_set_id */
393 bitstream_put_ue(bs, pic_param.seq_parameter_set_id); /* seq_parameter_set_id */
395 bitstream_put_ui(bs, pic_param.pic_fields.bits.entropy_coding_mode_flag, 1); /* entropy_coding_mode_flag */
397 bitstream_put_ui(bs, 0, 1); /* pic_order_present_flag: 0 */
399 bitstream_put_ue(bs, 0); /* num_slice_groups_minus1 */
401 bitstream_put_ue(bs, pic_param.num_ref_idx_l0_active_minus1); /* num_ref_idx_l0_active_minus1 */
402 bitstream_put_ue(bs, pic_param.num_ref_idx_l1_active_minus1); /* num_ref_idx_l1_active_minus1 1 */
404 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_pred_flag, 1); /* weighted_pred_flag: 0 */
405 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_bipred_idc, 2); /* weighted_bipred_idc: 0 */
407 bitstream_put_se(bs, pic_param.pic_init_qp - 26); /* pic_init_qp_minus26 */
408 bitstream_put_se(bs, 0); /* pic_init_qs_minus26 */
409 bitstream_put_se(bs, 0); /* chroma_qp_index_offset */
411 bitstream_put_ui(bs, pic_param.pic_fields.bits.deblocking_filter_control_present_flag, 1); /* deblocking_filter_control_present_flag */
412 bitstream_put_ui(bs, 0, 1); /* constrained_intra_pred_flag */
413 bitstream_put_ui(bs, 0, 1); /* redundant_pic_cnt_present_flag */
416 bitstream_put_ui(bs, pic_param.pic_fields.bits.transform_8x8_mode_flag, 1); /*transform_8x8_mode_flag */
417 bitstream_put_ui(bs, 0, 1); /* pic_scaling_matrix_present_flag */
418 bitstream_put_se(bs, pic_param.second_chroma_qp_index_offset ); /*second_chroma_qp_index_offset */
420 rbsp_trailing_bits(bs);
423 void QuickSyncEncoderImpl::slice_header(bitstream *bs)
425 int first_mb_in_slice = slice_param.macroblock_address;
427 bitstream_put_ue(bs, first_mb_in_slice); /* first_mb_in_slice: 0 */
428 bitstream_put_ue(bs, slice_param.slice_type); /* slice_type */
429 bitstream_put_ue(bs, slice_param.pic_parameter_set_id); /* pic_parameter_set_id: 0 */
430 bitstream_put_ui(bs, pic_param.frame_num, seq_param.seq_fields.bits.log2_max_frame_num_minus4 + 4); /* frame_num */
432 /* frame_mbs_only_flag == 1 */
433 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
438 if (pic_param.pic_fields.bits.idr_pic_flag)
439 bitstream_put_ue(bs, slice_param.idr_pic_id); /* idr_pic_id: 0 */
441 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0) {
442 bitstream_put_ui(bs, pic_param.CurrPic.TopFieldOrderCnt, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 + 4);
443 /* pic_order_present_flag == 0 */
449 /* redundant_pic_cnt_present_flag == 0 */
451 if (IS_P_SLICE(slice_param.slice_type)) {
452 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
454 if (slice_param.num_ref_idx_active_override_flag)
455 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
457 /* ref_pic_list_reordering */
458 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
459 } else if (IS_B_SLICE(slice_param.slice_type)) {
460 bitstream_put_ui(bs, slice_param.direct_spatial_mv_pred_flag, 1); /* direct_spatial_mv_pred: 1 */
462 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
464 if (slice_param.num_ref_idx_active_override_flag) {
465 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
466 bitstream_put_ue(bs, slice_param.num_ref_idx_l1_active_minus1);
469 /* ref_pic_list_reordering */
470 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
471 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l1: 0 */
474 if ((pic_param.pic_fields.bits.weighted_pred_flag &&
475 IS_P_SLICE(slice_param.slice_type)) ||
476 ((pic_param.pic_fields.bits.weighted_bipred_idc == 1) &&
477 IS_B_SLICE(slice_param.slice_type))) {
478 /* FIXME: fill weight/offset table */
482 /* dec_ref_pic_marking */
483 if (pic_param.pic_fields.bits.reference_pic_flag) { /* nal_ref_idc != 0 */
484 unsigned char no_output_of_prior_pics_flag = 0;
485 unsigned char long_term_reference_flag = 0;
486 unsigned char adaptive_ref_pic_marking_mode_flag = 0;
488 if (pic_param.pic_fields.bits.idr_pic_flag) {
489 bitstream_put_ui(bs, no_output_of_prior_pics_flag, 1); /* no_output_of_prior_pics_flag: 0 */
490 bitstream_put_ui(bs, long_term_reference_flag, 1); /* long_term_reference_flag: 0 */
492 bitstream_put_ui(bs, adaptive_ref_pic_marking_mode_flag, 1); /* adaptive_ref_pic_marking_mode_flag: 0 */
496 if (pic_param.pic_fields.bits.entropy_coding_mode_flag &&
497 !IS_I_SLICE(slice_param.slice_type))
498 bitstream_put_ue(bs, slice_param.cabac_init_idc); /* cabac_init_idc: 0 */
500 bitstream_put_se(bs, slice_param.slice_qp_delta); /* slice_qp_delta: 0 */
502 /* ignore for SP/SI */
504 if (pic_param.pic_fields.bits.deblocking_filter_control_present_flag) {
505 bitstream_put_ue(bs, slice_param.disable_deblocking_filter_idc); /* disable_deblocking_filter_idc: 0 */
507 if (slice_param.disable_deblocking_filter_idc != 1) {
508 bitstream_put_se(bs, slice_param.slice_alpha_c0_offset_div2); /* slice_alpha_c0_offset_div2: 2 */
509 bitstream_put_se(bs, slice_param.slice_beta_offset_div2); /* slice_beta_offset_div2: 2 */
513 if (pic_param.pic_fields.bits.entropy_coding_mode_flag) {
514 bitstream_byte_aligning(bs, 1);
518 int QuickSyncEncoderImpl::build_packed_pic_buffer(unsigned char **header_buffer)
522 bitstream_start(&bs);
523 nal_start_code_prefix(&bs);
524 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_PPS);
528 *header_buffer = (unsigned char *)bs.buffer;
529 return bs.bit_offset;
533 QuickSyncEncoderImpl::build_packed_seq_buffer(YCbCrLumaCoefficients ycbcr_coefficients, unsigned char **header_buffer)
537 bitstream_start(&bs);
538 nal_start_code_prefix(&bs);
539 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_SPS);
540 sps_rbsp(ycbcr_coefficients, &bs);
543 *header_buffer = (unsigned char *)bs.buffer;
544 return bs.bit_offset;
547 int QuickSyncEncoderImpl::build_packed_slice_buffer(unsigned char **header_buffer)
550 int is_idr = !!pic_param.pic_fields.bits.idr_pic_flag;
551 int is_ref = !!pic_param.pic_fields.bits.reference_pic_flag;
553 bitstream_start(&bs);
554 nal_start_code_prefix(&bs);
556 if (IS_I_SLICE(slice_param.slice_type)) {
557 nal_header(&bs, NAL_REF_IDC_HIGH, is_idr ? NAL_IDR : NAL_NON_IDR);
558 } else if (IS_P_SLICE(slice_param.slice_type)) {
559 nal_header(&bs, NAL_REF_IDC_MEDIUM, NAL_NON_IDR);
561 assert(IS_B_SLICE(slice_param.slice_type));
562 nal_header(&bs, is_ref ? NAL_REF_IDC_LOW : NAL_REF_IDC_NONE, NAL_NON_IDR);
568 *header_buffer = (unsigned char *)bs.buffer;
569 return bs.bit_offset;
574 Assume frame sequence is: Frame#0, #1, #2, ..., #M, ..., #X, ... (encoding order)
575 1) period between Frame #X and Frame #N = #X - #N
576 2) 0 means infinite for intra_period/intra_idr_period, and 0 is invalid for ip_period
577 3) intra_idr_period % intra_period (intra_period > 0) and intra_period % ip_period must be 0
578 4) intra_period and intra_idr_period take precedence over ip_period
579 5) if ip_period > 1, intra_period and intra_idr_period are not the strict periods
580 of I/IDR frames, see bellow examples
581 -------------------------------------------------------------------
582 intra_period intra_idr_period ip_period frame sequence (intra_period/intra_idr_period/ip_period)
583 0 ignored 1 IDRPPPPPPP ... (No IDR/I any more)
584 0 ignored >=2 IDR(PBB)(PBB)... (No IDR/I any more)
585 1 0 ignored IDRIIIIIII... (No IDR any more)
586 1 1 ignored IDR IDR IDR IDR...
587 1 >=2 ignored IDRII IDRII IDR... (1/3/ignore)
588 >=2 0 1 IDRPPP IPPP I... (3/0/1)
589 >=2 0 >=2 IDR(PBB)(PBB)(IBB) (6/0/3)
590 (PBB)(IBB)(PBB)(IBB)...
591 >=2 >=2 1 IDRPPPPP IPPPPP IPPPPP (6/18/1)
592 IDRPPPPP IPPPPP IPPPPP...
593 >=2 >=2 >=2 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)} (6/18/3)
594 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)}...
595 {IDR(PBB)(PBB)(IBB)(PBB)} (6/12/3)
596 {IDR(PBB)(PBB)(IBB)(PBB)}...
597 {IDR(PBB)(PBB)} (6/6/3)
601 // General pts/dts strategy:
603 // Getting pts and dts right with variable frame rate (VFR) and B-frames can be a
604 // bit tricky. We assume first of all that the frame rate never goes _above_
605 // MAX_FPS, which gives us a frame period N. The decoder can always decode
606 // in at least this speed, as long at dts <= pts (the frame is not attempted
607 // presented before it is decoded). Furthermore, we never have longer chains of
608 // B-frames than a fixed constant C. (In a B-frame chain, we say that the base
609 // I/P-frame has order O=0, the B-frame depending on it directly has order O=1,
610 // etc. The last frame in the chain, which no B-frames depend on, is the “tip”
611 // frame, with an order O <= C.)
613 // Many strategies are possible, but we establish these rules:
615 // - Tip frames have dts = pts - (C-O)*N.
616 // - Non-tip frames have dts = dts_last + N.
618 // An example, with C=2 and N=10 and the data flow showed with arrows:
621 // pts: 30 40 50 60 70 80
623 // dts: 10 30 20 60 50←40
628 // To show that this works fine also with irregular spacings, let's say that
629 // the third frame is delayed a bit (something earlier was dropped). Now the
630 // situation looks like this:
633 // pts: 30 40 80 90 100 110
635 // dts: 10 30 20 90 50←40
640 // The resetting on every tip frame makes sure dts never ends up lagging a lot
641 // behind pts, and the subtraction of (C-O)*N makes sure pts <= dts.
643 // In the output of this function, if <dts_lag> is >= 0, it means to reset the
644 // dts from the current pts minus <dts_lag>, while if it's -1, the frame is not
645 // a tip frame and should be given a dts based on the previous one.
650 void encoding2display_order(
651 int encoding_order, int intra_period,
652 int intra_idr_period, int ip_period,
653 int *displaying_order,
654 int *frame_type, int *pts_lag)
656 int encoding_order_gop = 0;
660 if (intra_period == 1) { /* all are I/IDR frames */
661 *displaying_order = encoding_order;
662 if (intra_idr_period == 0)
663 *frame_type = (encoding_order == 0)?FRAME_IDR:FRAME_I;
665 *frame_type = (encoding_order % intra_idr_period == 0)?FRAME_IDR:FRAME_I;
669 if (intra_period == 0)
670 intra_idr_period = 0;
672 if (ip_period == 1) {
673 // No B-frames, sequence is like IDR PPPPP IPPPPP.
674 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % intra_idr_period);
675 *displaying_order = encoding_order;
677 if (encoding_order_gop == 0) { /* the first frame */
678 *frame_type = FRAME_IDR;
679 } else if (intra_period != 0 && /* have I frames */
680 encoding_order_gop >= 2 &&
681 (encoding_order_gop % intra_period == 0)) {
682 *frame_type = FRAME_I;
684 *frame_type = FRAME_P;
689 // We have B-frames. Sequence is like IDR (PBB)(PBB)(IBB)(PBB).
690 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % (intra_idr_period + 1));
691 *pts_lag = -1; // Most frames are not tip frames.
693 if (encoding_order_gop == 0) { /* the first frame */
694 *frame_type = FRAME_IDR;
695 *displaying_order = encoding_order;
696 // IDR frames are a special case; I honestly can't find the logic behind
697 // why this is the right thing, but it seems to line up nicely in practice :-)
698 *pts_lag = TIMEBASE / MAX_FPS;
699 } else if (((encoding_order_gop - 1) % ip_period) != 0) { /* B frames */
700 *frame_type = FRAME_B;
701 *displaying_order = encoding_order - 1;
702 if ((encoding_order_gop % ip_period) == 0) {
703 *pts_lag = 0; // Last B-frame.
705 } else if (intra_period != 0 && /* have I frames */
706 encoding_order_gop >= 2 &&
707 ((encoding_order_gop - 1) / ip_period % (intra_period / ip_period)) == 0) {
708 *frame_type = FRAME_I;
709 *displaying_order = encoding_order + ip_period - 1;
711 *frame_type = FRAME_P;
712 *displaying_order = encoding_order + ip_period - 1;
717 static const char *rc_to_string(int rc_mode)
730 case VA_RC_VBR_CONSTRAINED:
731 return "VBR_CONSTRAINED";
737 void QuickSyncEncoderImpl::enable_zerocopy_if_possible()
739 if (global_flags.x264_video_to_disk) {
740 // Quick Sync is entirely disabled.
741 use_zerocopy = false;
742 } else if (global_flags.uncompressed_video_to_http) {
743 fprintf(stderr, "Disabling zerocopy H.264 encoding due to --http-uncompressed-video.\n");
744 use_zerocopy = false;
745 } else if (global_flags.x264_video_to_http) {
746 fprintf(stderr, "Disabling zerocopy H.264 encoding due to --http-x264-video.\n");
747 use_zerocopy = false;
751 global_flags.use_zerocopy = use_zerocopy;
754 VADisplay QuickSyncEncoderImpl::va_open_display(const string &va_display)
756 if (va_display.empty()) {
757 x11_display = XOpenDisplay(NULL);
759 fprintf(stderr, "error: can't connect to X server!\n");
762 return vaGetDisplay(x11_display);
763 } else if (va_display[0] != '/') {
764 x11_display = XOpenDisplay(va_display.c_str());
766 fprintf(stderr, "error: can't connect to X server!\n");
769 return vaGetDisplay(x11_display);
771 drm_fd = open(va_display.c_str(), O_RDWR);
773 perror(va_display.c_str());
776 use_zerocopy = false;
777 return vaGetDisplayDRM(drm_fd);
781 void QuickSyncEncoderImpl::va_close_display(VADisplay va_dpy)
784 XCloseDisplay(x11_display);
785 x11_display = nullptr;
792 int QuickSyncEncoderImpl::init_va(const string &va_display)
794 VAProfile profile_list[]={VAProfileH264High, VAProfileH264Main, VAProfileH264Baseline, VAProfileH264ConstrainedBaseline};
795 VAEntrypoint *entrypoints;
796 int num_entrypoints, slice_entrypoint;
797 int support_encode = 0;
798 int major_ver, minor_ver;
802 va_dpy = va_open_display(va_display);
803 va_status = vaInitialize(va_dpy, &major_ver, &minor_ver);
804 CHECK_VASTATUS(va_status, "vaInitialize");
806 num_entrypoints = vaMaxNumEntrypoints(va_dpy);
807 entrypoints = (VAEntrypoint *)malloc(num_entrypoints * sizeof(*entrypoints));
809 fprintf(stderr, "error: failed to initialize VA entrypoints array\n");
813 /* use the highest profile */
814 for (i = 0; i < sizeof(profile_list)/sizeof(profile_list[0]); i++) {
815 if ((h264_profile != ~0) && h264_profile != profile_list[i])
818 h264_profile = profile_list[i];
819 vaQueryConfigEntrypoints(va_dpy, h264_profile, entrypoints, &num_entrypoints);
820 for (slice_entrypoint = 0; slice_entrypoint < num_entrypoints; slice_entrypoint++) {
821 if (entrypoints[slice_entrypoint] == VAEntrypointEncSlice) {
826 if (support_encode == 1)
830 if (support_encode == 0) {
831 printf("Can't find VAEntrypointEncSlice for H264 profiles. If you are using a non-Intel GPU\n");
832 printf("but have one in your system, try launching Nageru with --va-display /dev/dri/renderD128\n");
833 printf("to use VA-API against DRM instead of X11.\n");
836 switch (h264_profile) {
837 case VAProfileH264Baseline:
839 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
840 h264_entropy_mode = 0;
842 case VAProfileH264ConstrainedBaseline:
843 constraint_set_flag |= (1 << 0 | 1 << 1); /* Annex A.2.2 */
847 case VAProfileH264Main:
848 constraint_set_flag |= (1 << 1); /* Annex A.2.2 */
851 case VAProfileH264High:
852 constraint_set_flag |= (1 << 3); /* Annex A.2.4 */
855 h264_profile = VAProfileH264Baseline;
857 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
862 VAConfigAttrib attrib[VAConfigAttribTypeMax];
864 /* find out the format for the render target, and rate control mode */
865 for (i = 0; i < VAConfigAttribTypeMax; i++)
866 attrib[i].type = (VAConfigAttribType)i;
868 va_status = vaGetConfigAttributes(va_dpy, h264_profile, VAEntrypointEncSlice,
869 &attrib[0], VAConfigAttribTypeMax);
870 CHECK_VASTATUS(va_status, "vaGetConfigAttributes");
871 /* check the interested configattrib */
872 if ((attrib[VAConfigAttribRTFormat].value & VA_RT_FORMAT_YUV420) == 0) {
873 printf("Not find desired YUV420 RT format\n");
876 config_attrib[config_attrib_num].type = VAConfigAttribRTFormat;
877 config_attrib[config_attrib_num].value = VA_RT_FORMAT_YUV420;
881 if (attrib[VAConfigAttribRateControl].value != VA_ATTRIB_NOT_SUPPORTED) {
882 int tmp = attrib[VAConfigAttribRateControl].value;
884 if (rc_mode == -1 || !(rc_mode & tmp)) {
886 printf("Warning: Don't support the specified RateControl mode: %s!!!, switch to ", rc_to_string(rc_mode));
889 for (i = 0; i < sizeof(rc_default_modes) / sizeof(rc_default_modes[0]); i++) {
890 if (rc_default_modes[i] & tmp) {
891 rc_mode = rc_default_modes[i];
897 config_attrib[config_attrib_num].type = VAConfigAttribRateControl;
898 config_attrib[config_attrib_num].value = rc_mode;
903 if (attrib[VAConfigAttribEncPackedHeaders].value != VA_ATTRIB_NOT_SUPPORTED) {
904 int tmp = attrib[VAConfigAttribEncPackedHeaders].value;
906 h264_packedheader = 1;
907 config_attrib[config_attrib_num].type = VAConfigAttribEncPackedHeaders;
908 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
910 if (tmp & VA_ENC_PACKED_HEADER_SEQUENCE) {
911 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SEQUENCE;
914 if (tmp & VA_ENC_PACKED_HEADER_PICTURE) {
915 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_PICTURE;
918 if (tmp & VA_ENC_PACKED_HEADER_SLICE) {
919 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SLICE;
922 if (tmp & VA_ENC_PACKED_HEADER_MISC) {
923 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_MISC;
926 enc_packed_header_idx = config_attrib_num;
930 if (attrib[VAConfigAttribEncInterlaced].value != VA_ATTRIB_NOT_SUPPORTED) {
931 config_attrib[config_attrib_num].type = VAConfigAttribEncInterlaced;
932 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
936 if (attrib[VAConfigAttribEncMaxRefFrames].value != VA_ATTRIB_NOT_SUPPORTED) {
937 h264_maxref = attrib[VAConfigAttribEncMaxRefFrames].value;
944 int QuickSyncEncoderImpl::setup_encode()
946 if (!global_flags.x264_video_to_disk) {
948 VASurfaceID *tmp_surfaceid;
950 VASurfaceID src_surface[SURFACE_NUM];
951 VASurfaceID ref_surface[SURFACE_NUM];
953 va_status = vaCreateConfig(va_dpy, h264_profile, VAEntrypointEncSlice,
954 &config_attrib[0], config_attrib_num, &config_id);
955 CHECK_VASTATUS(va_status, "vaCreateConfig");
957 /* create source surfaces */
958 va_status = vaCreateSurfaces(va_dpy,
959 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
960 &src_surface[0], SURFACE_NUM,
962 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
964 /* create reference surfaces */
965 va_status = vaCreateSurfaces(va_dpy,
966 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
967 &ref_surface[0], SURFACE_NUM,
969 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
971 tmp_surfaceid = (VASurfaceID *)calloc(2 * SURFACE_NUM, sizeof(VASurfaceID));
972 memcpy(tmp_surfaceid, src_surface, SURFACE_NUM * sizeof(VASurfaceID));
973 memcpy(tmp_surfaceid + SURFACE_NUM, ref_surface, SURFACE_NUM * sizeof(VASurfaceID));
975 for (int i = 0; i < SURFACE_NUM; i++) {
976 gl_surfaces[i].src_surface = src_surface[i];
977 gl_surfaces[i].ref_surface = ref_surface[i];
980 /* Create a context for this encode pipe */
981 va_status = vaCreateContext(va_dpy, config_id,
982 frame_width_mbaligned, frame_height_mbaligned,
984 tmp_surfaceid, 2 * SURFACE_NUM,
986 CHECK_VASTATUS(va_status, "vaCreateContext");
989 codedbuf_size = (frame_width_mbaligned * frame_height_mbaligned * 400) / (16*16);
991 for (int i = 0; i < SURFACE_NUM; i++) {
992 /* create coded buffer once for all
993 * other VA buffers which won't be used again after vaRenderPicture.
994 * so APP can always vaCreateBuffer for every frame
995 * but coded buffer need to be mapped and accessed after vaRenderPicture/vaEndPicture
996 * so VA won't maintain the coded buffer
998 va_status = vaCreateBuffer(va_dpy, context_id, VAEncCodedBufferType,
999 codedbuf_size, 1, NULL, &gl_surfaces[i].coded_buf);
1000 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1004 /* create OpenGL objects */
1005 for (int i = 0; i < SURFACE_NUM; i++) {
1007 gl_surfaces[i].y_tex = resource_pool->create_2d_texture(GL_R8, 1, 1);
1008 gl_surfaces[i].cbcr_tex = resource_pool->create_2d_texture(GL_RG8, 1, 1);
1010 size_t bytes_per_pixel = (global_flags.x264_bit_depth > 8) ? 2 : 1;
1012 // Generate a PBO to read into. It doesn't necessarily fit 1:1 with the VA-API
1013 // buffers, due to potentially differing pitch.
1014 glGenBuffers(1, &gl_surfaces[i].pbo);
1015 glBindBuffer(GL_PIXEL_PACK_BUFFER, gl_surfaces[i].pbo);
1016 glBufferStorage(GL_PIXEL_PACK_BUFFER, frame_width * frame_height * 2 * bytes_per_pixel, nullptr, GL_MAP_READ_BIT | GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT);
1017 uint8_t *ptr = (uint8_t *)glMapBufferRange(GL_PIXEL_PACK_BUFFER, 0, frame_width * frame_height * 2 * bytes_per_pixel, GL_MAP_READ_BIT | GL_MAP_PERSISTENT_BIT);
1018 gl_surfaces[i].y_offset = 0;
1019 gl_surfaces[i].cbcr_offset = frame_width * frame_height * bytes_per_pixel;
1020 gl_surfaces[i].y_ptr = ptr + gl_surfaces[i].y_offset;
1021 gl_surfaces[i].cbcr_ptr = ptr + gl_surfaces[i].cbcr_offset;
1022 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1029 // Given a list like 1 9 3 0 2 8 4 and a pivot element 3, will produce
1032 template<class T, class C>
1033 static void sort_two(T *begin, T *end, const T &pivot, const C &less_than)
1035 T *middle = partition(begin, end, [&](const T &elem) { return less_than(elem, pivot); });
1036 sort(begin, middle, [&](const T &a, const T &b) { return less_than(b, a); });
1037 sort(middle, end, less_than);
1040 void QuickSyncEncoderImpl::update_ReferenceFrames(int current_display_frame, int frame_type)
1042 if (frame_type == FRAME_B)
1045 pic_param.CurrPic.frame_idx = current_ref_frame_num;
1047 CurrentCurrPic.flags = VA_PICTURE_H264_SHORT_TERM_REFERENCE;
1048 unique_lock<mutex> lock(storage_task_queue_mutex);
1050 // Insert the new frame at the start of the reference queue.
1051 reference_frames.push_front(ReferenceFrame{ CurrentCurrPic, current_display_frame });
1053 if (reference_frames.size() > num_ref_frames)
1055 // The back frame frame is no longer in use as a reference.
1056 int display_frame_num = reference_frames.back().display_number;
1057 assert(surface_for_frame.count(display_frame_num));
1058 release_gl_surface(display_frame_num);
1059 reference_frames.pop_back();
1062 // Mark this frame in use as a reference.
1063 assert(surface_for_frame.count(current_display_frame));
1064 ++surface_for_frame[current_display_frame]->refcount;
1066 current_ref_frame_num++;
1067 if (current_ref_frame_num > MaxFrameNum)
1068 current_ref_frame_num = 0;
1072 void QuickSyncEncoderImpl::update_RefPicList_P(VAPictureH264 RefPicList0_P[MAX_NUM_REF2])
1074 const auto descending_by_frame_idx = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1075 return a.frame_idx > b.frame_idx;
1078 for (size_t i = 0; i < reference_frames.size(); ++i) {
1079 RefPicList0_P[i] = reference_frames[i].pic;
1081 sort(&RefPicList0_P[0], &RefPicList0_P[reference_frames.size()], descending_by_frame_idx);
1084 void QuickSyncEncoderImpl::update_RefPicList_B(VAPictureH264 RefPicList0_B[MAX_NUM_REF2], VAPictureH264 RefPicList1_B[MAX_NUM_REF2])
1086 const auto ascending_by_top_field_order_cnt = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1087 return a.TopFieldOrderCnt < b.TopFieldOrderCnt;
1089 const auto descending_by_top_field_order_cnt = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1090 return a.TopFieldOrderCnt > b.TopFieldOrderCnt;
1093 for (size_t i = 0; i < reference_frames.size(); ++i) {
1094 RefPicList0_B[i] = reference_frames[i].pic;
1095 RefPicList1_B[i] = reference_frames[i].pic;
1097 sort_two(&RefPicList0_B[0], &RefPicList0_B[reference_frames.size()], CurrentCurrPic, ascending_by_top_field_order_cnt);
1098 sort_two(&RefPicList1_B[0], &RefPicList1_B[reference_frames.size()], CurrentCurrPic, descending_by_top_field_order_cnt);
1102 int QuickSyncEncoderImpl::render_sequence()
1104 VABufferID seq_param_buf, rc_param_buf, render_id[2];
1106 VAEncMiscParameterBuffer *misc_param;
1107 VAEncMiscParameterRateControl *misc_rate_ctrl;
1109 seq_param.level_idc = 41 /*SH_LEVEL_3*/;
1110 seq_param.picture_width_in_mbs = frame_width_mbaligned / 16;
1111 seq_param.picture_height_in_mbs = frame_height_mbaligned / 16;
1112 seq_param.bits_per_second = frame_bitrate;
1114 seq_param.intra_period = intra_period;
1115 seq_param.intra_idr_period = intra_idr_period;
1116 seq_param.ip_period = ip_period;
1118 seq_param.max_num_ref_frames = num_ref_frames;
1119 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1120 seq_param.time_scale = TIMEBASE * 2;
1121 seq_param.num_units_in_tick = 1; /* Tc = num_units_in_tick / scale */
1122 seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 = Log2MaxPicOrderCntLsb - 4;
1123 seq_param.seq_fields.bits.log2_max_frame_num_minus4 = Log2MaxFrameNum - 4;;
1124 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1125 seq_param.seq_fields.bits.chroma_format_idc = 1;
1126 seq_param.seq_fields.bits.direct_8x8_inference_flag = 1;
1128 if (frame_width != frame_width_mbaligned ||
1129 frame_height != frame_height_mbaligned) {
1130 seq_param.frame_cropping_flag = 1;
1131 seq_param.frame_crop_left_offset = 0;
1132 seq_param.frame_crop_right_offset = (frame_width_mbaligned - frame_width)/2;
1133 seq_param.frame_crop_top_offset = 0;
1134 seq_param.frame_crop_bottom_offset = (frame_height_mbaligned - frame_height)/2;
1137 va_status = vaCreateBuffer(va_dpy, context_id,
1138 VAEncSequenceParameterBufferType,
1139 sizeof(seq_param), 1, &seq_param, &seq_param_buf);
1140 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1142 va_status = vaCreateBuffer(va_dpy, context_id,
1143 VAEncMiscParameterBufferType,
1144 sizeof(VAEncMiscParameterBuffer) + sizeof(VAEncMiscParameterRateControl),
1145 1, NULL, &rc_param_buf);
1146 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1148 vaMapBuffer(va_dpy, rc_param_buf, (void **)&misc_param);
1149 misc_param->type = VAEncMiscParameterTypeRateControl;
1150 misc_rate_ctrl = (VAEncMiscParameterRateControl *)misc_param->data;
1151 memset(misc_rate_ctrl, 0, sizeof(*misc_rate_ctrl));
1152 misc_rate_ctrl->bits_per_second = frame_bitrate;
1153 misc_rate_ctrl->target_percentage = 66;
1154 misc_rate_ctrl->window_size = 1000;
1155 misc_rate_ctrl->initial_qp = initial_qp;
1156 misc_rate_ctrl->min_qp = minimal_qp;
1157 misc_rate_ctrl->basic_unit_size = 0;
1158 vaUnmapBuffer(va_dpy, rc_param_buf);
1160 render_id[0] = seq_param_buf;
1161 render_id[1] = rc_param_buf;
1163 render_picture_and_delete(va_dpy, context_id, &render_id[0], 2);
1168 static int calc_poc(int pic_order_cnt_lsb, int frame_type)
1170 static int PicOrderCntMsb_ref = 0, pic_order_cnt_lsb_ref = 0;
1171 int prevPicOrderCntMsb, prevPicOrderCntLsb;
1172 int PicOrderCntMsb, TopFieldOrderCnt;
1174 if (frame_type == FRAME_IDR)
1175 prevPicOrderCntMsb = prevPicOrderCntLsb = 0;
1177 prevPicOrderCntMsb = PicOrderCntMsb_ref;
1178 prevPicOrderCntLsb = pic_order_cnt_lsb_ref;
1181 if ((pic_order_cnt_lsb < prevPicOrderCntLsb) &&
1182 ((prevPicOrderCntLsb - pic_order_cnt_lsb) >= (int)(MaxPicOrderCntLsb / 2)))
1183 PicOrderCntMsb = prevPicOrderCntMsb + MaxPicOrderCntLsb;
1184 else if ((pic_order_cnt_lsb > prevPicOrderCntLsb) &&
1185 ((pic_order_cnt_lsb - prevPicOrderCntLsb) > (int)(MaxPicOrderCntLsb / 2)))
1186 PicOrderCntMsb = prevPicOrderCntMsb - MaxPicOrderCntLsb;
1188 PicOrderCntMsb = prevPicOrderCntMsb;
1190 TopFieldOrderCnt = PicOrderCntMsb + pic_order_cnt_lsb;
1192 if (frame_type != FRAME_B) {
1193 PicOrderCntMsb_ref = PicOrderCntMsb;
1194 pic_order_cnt_lsb_ref = pic_order_cnt_lsb;
1197 return TopFieldOrderCnt;
1200 int QuickSyncEncoderImpl::render_picture(GLSurface *surf, int frame_type, int display_frame_num, int gop_start_display_frame_num)
1202 VABufferID pic_param_buf;
1206 pic_param.CurrPic.picture_id = surf->ref_surface;
1207 pic_param.CurrPic.frame_idx = current_ref_frame_num;
1208 pic_param.CurrPic.flags = 0;
1209 pic_param.CurrPic.TopFieldOrderCnt = calc_poc((display_frame_num - gop_start_display_frame_num) % MaxPicOrderCntLsb, frame_type);
1210 pic_param.CurrPic.BottomFieldOrderCnt = pic_param.CurrPic.TopFieldOrderCnt;
1211 CurrentCurrPic = pic_param.CurrPic;
1213 for (i = 0; i < reference_frames.size(); i++) {
1214 pic_param.ReferenceFrames[i] = reference_frames[i].pic;
1216 for (i = reference_frames.size(); i < MAX_NUM_REF1; i++) {
1217 pic_param.ReferenceFrames[i].picture_id = VA_INVALID_SURFACE;
1218 pic_param.ReferenceFrames[i].flags = VA_PICTURE_H264_INVALID;
1221 pic_param.pic_fields.bits.idr_pic_flag = (frame_type == FRAME_IDR);
1222 pic_param.pic_fields.bits.reference_pic_flag = (frame_type != FRAME_B);
1223 pic_param.pic_fields.bits.entropy_coding_mode_flag = h264_entropy_mode;
1224 pic_param.pic_fields.bits.deblocking_filter_control_present_flag = 1;
1225 pic_param.frame_num = current_ref_frame_num; // FIXME: is this correct?
1226 pic_param.coded_buf = surf->coded_buf;
1227 pic_param.last_picture = false; // FIXME
1228 pic_param.pic_init_qp = initial_qp;
1230 va_status = vaCreateBuffer(va_dpy, context_id, VAEncPictureParameterBufferType,
1231 sizeof(pic_param), 1, &pic_param, &pic_param_buf);
1232 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1234 render_picture_and_delete(va_dpy, context_id, &pic_param_buf, 1);
1239 int QuickSyncEncoderImpl::render_packedsequence(YCbCrLumaCoefficients ycbcr_coefficients)
1241 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1242 VABufferID packedseq_para_bufid, packedseq_data_bufid, render_id[2];
1243 unsigned int length_in_bits;
1244 unsigned char *packedseq_buffer = NULL;
1247 length_in_bits = build_packed_seq_buffer(ycbcr_coefficients, &packedseq_buffer);
1249 packedheader_param_buffer.type = VAEncPackedHeaderSequence;
1251 packedheader_param_buffer.bit_length = length_in_bits; /*length_in_bits*/
1252 packedheader_param_buffer.has_emulation_bytes = 0;
1253 va_status = vaCreateBuffer(va_dpy,
1255 VAEncPackedHeaderParameterBufferType,
1256 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1257 &packedseq_para_bufid);
1258 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1260 va_status = vaCreateBuffer(va_dpy,
1262 VAEncPackedHeaderDataBufferType,
1263 (length_in_bits + 7) / 8, 1, packedseq_buffer,
1264 &packedseq_data_bufid);
1265 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1267 render_id[0] = packedseq_para_bufid;
1268 render_id[1] = packedseq_data_bufid;
1269 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1271 free(packedseq_buffer);
1277 int QuickSyncEncoderImpl::render_packedpicture()
1279 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1280 VABufferID packedpic_para_bufid, packedpic_data_bufid, render_id[2];
1281 unsigned int length_in_bits;
1282 unsigned char *packedpic_buffer = NULL;
1285 length_in_bits = build_packed_pic_buffer(&packedpic_buffer);
1286 packedheader_param_buffer.type = VAEncPackedHeaderPicture;
1287 packedheader_param_buffer.bit_length = length_in_bits;
1288 packedheader_param_buffer.has_emulation_bytes = 0;
1290 va_status = vaCreateBuffer(va_dpy,
1292 VAEncPackedHeaderParameterBufferType,
1293 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1294 &packedpic_para_bufid);
1295 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1297 va_status = vaCreateBuffer(va_dpy,
1299 VAEncPackedHeaderDataBufferType,
1300 (length_in_bits + 7) / 8, 1, packedpic_buffer,
1301 &packedpic_data_bufid);
1302 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1304 render_id[0] = packedpic_para_bufid;
1305 render_id[1] = packedpic_data_bufid;
1306 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1308 free(packedpic_buffer);
1313 void QuickSyncEncoderImpl::render_packedslice()
1315 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1316 VABufferID packedslice_para_bufid, packedslice_data_bufid, render_id[2];
1317 unsigned int length_in_bits;
1318 unsigned char *packedslice_buffer = NULL;
1321 length_in_bits = build_packed_slice_buffer(&packedslice_buffer);
1322 packedheader_param_buffer.type = VAEncPackedHeaderSlice;
1323 packedheader_param_buffer.bit_length = length_in_bits;
1324 packedheader_param_buffer.has_emulation_bytes = 0;
1326 va_status = vaCreateBuffer(va_dpy,
1328 VAEncPackedHeaderParameterBufferType,
1329 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1330 &packedslice_para_bufid);
1331 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1333 va_status = vaCreateBuffer(va_dpy,
1335 VAEncPackedHeaderDataBufferType,
1336 (length_in_bits + 7) / 8, 1, packedslice_buffer,
1337 &packedslice_data_bufid);
1338 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1340 render_id[0] = packedslice_para_bufid;
1341 render_id[1] = packedslice_data_bufid;
1342 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1344 free(packedslice_buffer);
1347 int QuickSyncEncoderImpl::render_slice(int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num, int frame_type)
1349 VABufferID slice_param_buf;
1353 /* one frame, one slice */
1354 slice_param.macroblock_address = 0;
1355 slice_param.num_macroblocks = frame_width_mbaligned * frame_height_mbaligned/(16*16); /* Measured by MB */
1356 slice_param.slice_type = (frame_type == FRAME_IDR)?2:frame_type;
1357 if (frame_type == FRAME_IDR) {
1358 if (encoding_frame_num != 0)
1359 ++slice_param.idr_pic_id;
1360 } else if (frame_type == FRAME_P) {
1361 VAPictureH264 RefPicList0_P[MAX_NUM_REF2];
1362 update_RefPicList_P(RefPicList0_P);
1364 int refpiclist0_max = h264_maxref & 0xffff;
1365 memcpy(slice_param.RefPicList0, RefPicList0_P, refpiclist0_max*sizeof(VAPictureH264));
1367 for (i = refpiclist0_max; i < MAX_NUM_REF2; i++) {
1368 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1369 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1371 } else if (frame_type == FRAME_B) {
1372 VAPictureH264 RefPicList0_B[MAX_NUM_REF2], RefPicList1_B[MAX_NUM_REF2];
1373 update_RefPicList_B(RefPicList0_B, RefPicList1_B);
1375 int refpiclist0_max = h264_maxref & 0xffff;
1376 int refpiclist1_max = (h264_maxref >> 16) & 0xffff;
1378 memcpy(slice_param.RefPicList0, RefPicList0_B, refpiclist0_max*sizeof(VAPictureH264));
1379 for (i = refpiclist0_max; i < MAX_NUM_REF2; i++) {
1380 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1381 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1384 memcpy(slice_param.RefPicList1, RefPicList1_B, refpiclist1_max*sizeof(VAPictureH264));
1385 for (i = refpiclist1_max; i < MAX_NUM_REF2; i++) {
1386 slice_param.RefPicList1[i].picture_id = VA_INVALID_SURFACE;
1387 slice_param.RefPicList1[i].flags = VA_PICTURE_H264_INVALID;
1391 slice_param.slice_alpha_c0_offset_div2 = 0;
1392 slice_param.slice_beta_offset_div2 = 0;
1393 slice_param.direct_spatial_mv_pred_flag = 1;
1394 slice_param.pic_order_cnt_lsb = (display_frame_num - gop_start_display_frame_num) % MaxPicOrderCntLsb;
1397 if (h264_packedheader &&
1398 config_attrib[enc_packed_header_idx].value & VA_ENC_PACKED_HEADER_SLICE)
1399 render_packedslice();
1401 va_status = vaCreateBuffer(va_dpy, context_id, VAEncSliceParameterBufferType,
1402 sizeof(slice_param), 1, &slice_param, &slice_param_buf);
1403 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1405 render_picture_and_delete(va_dpy, context_id, &slice_param_buf, 1);
1412 void QuickSyncEncoderImpl::save_codeddata(GLSurface *surf, storage_task task)
1414 VACodedBufferSegment *buf_list = NULL;
1419 va_status = vaMapBuffer(va_dpy, surf->coded_buf, (void **)(&buf_list));
1420 CHECK_VASTATUS(va_status, "vaMapBuffer");
1421 while (buf_list != NULL) {
1422 data.append(reinterpret_cast<const char *>(buf_list->buf), buf_list->size);
1423 buf_list = (VACodedBufferSegment *) buf_list->next;
1425 vaUnmapBuffer(va_dpy, surf->coded_buf);
1427 static int frameno = 0;
1428 print_latency("Current Quick Sync latency (video inputs → disk mux):",
1429 task.received_ts, (task.frame_type == FRAME_B), &frameno, &qs_latency_histogram);
1434 memset(&pkt, 0, sizeof(pkt));
1436 pkt.data = reinterpret_cast<uint8_t *>(&data[0]);
1437 pkt.size = data.size();
1438 pkt.stream_index = 0;
1439 if (task.frame_type == FRAME_IDR) {
1440 pkt.flags = AV_PKT_FLAG_KEY;
1444 pkt.duration = task.duration;
1446 file_mux->add_packet(pkt, task.pts + global_delay(), task.dts + global_delay());
1448 if (!global_flags.uncompressed_video_to_http &&
1449 !global_flags.x264_video_to_http) {
1450 stream_mux->add_packet(pkt, task.pts + global_delay(), task.dts + global_delay());
1456 // this is weird. but it seems to put a new frame onto the queue
1457 void QuickSyncEncoderImpl::storage_task_enqueue(storage_task task)
1459 unique_lock<mutex> lock(storage_task_queue_mutex);
1460 storage_task_queue.push(move(task));
1461 storage_task_queue_changed.notify_all();
1464 void QuickSyncEncoderImpl::storage_task_thread()
1466 pthread_setname_np(pthread_self(), "QS_Storage");
1468 storage_task current;
1471 // wait until there's an encoded frame
1472 unique_lock<mutex> lock(storage_task_queue_mutex);
1473 storage_task_queue_changed.wait(lock, [this]{ return storage_thread_should_quit || !storage_task_queue.empty(); });
1474 if (storage_thread_should_quit && storage_task_queue.empty()) return;
1475 current = move(storage_task_queue.front());
1476 storage_task_queue.pop();
1477 surf = surface_for_frame[current.display_order];
1478 assert(surf != nullptr);
1483 size_t display_order = current.display_order;
1484 vector<size_t> ref_display_frame_numbers = move(current.ref_display_frame_numbers);
1486 // waits for data, then saves it to disk.
1487 va_status = vaSyncSurface(va_dpy, surf->src_surface);
1488 CHECK_VASTATUS(va_status, "vaSyncSurface");
1489 save_codeddata(surf, move(current));
1491 // Unlock the frame, and all its references.
1493 unique_lock<mutex> lock(storage_task_queue_mutex);
1494 release_gl_surface(display_order);
1496 for (size_t frame_num : ref_display_frame_numbers) {
1497 release_gl_surface(frame_num);
1503 void QuickSyncEncoderImpl::release_encode()
1505 for (unsigned i = 0; i < SURFACE_NUM; i++) {
1506 vaDestroyBuffer(va_dpy, gl_surfaces[i].coded_buf);
1507 vaDestroySurfaces(va_dpy, &gl_surfaces[i].src_surface, 1);
1508 vaDestroySurfaces(va_dpy, &gl_surfaces[i].ref_surface, 1);
1511 vaDestroyContext(va_dpy, context_id);
1512 vaDestroyConfig(va_dpy, config_id);
1515 void QuickSyncEncoderImpl::release_gl_resources()
1517 assert(is_shutdown);
1518 if (has_released_gl_resources) {
1522 for (unsigned i = 0; i < SURFACE_NUM; i++) {
1524 resource_pool->release_2d_texture(gl_surfaces[i].y_tex);
1525 resource_pool->release_2d_texture(gl_surfaces[i].cbcr_tex);
1527 glBindBuffer(GL_PIXEL_PACK_BUFFER, gl_surfaces[i].pbo);
1528 glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
1529 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1530 glDeleteBuffers(1, &gl_surfaces[i].pbo);
1534 has_released_gl_resources = true;
1537 int QuickSyncEncoderImpl::deinit_va()
1539 vaTerminate(va_dpy);
1541 va_close_display(va_dpy);
1546 QuickSyncEncoderImpl::QuickSyncEncoderImpl(const std::string &filename, ResourcePool *resource_pool, QSurface *surface, const string &va_display, int width, int height, AVOutputFormat *oformat, X264Encoder *x264_encoder, DiskSpaceEstimator *disk_space_estimator)
1547 : current_storage_frame(0), resource_pool(resource_pool), surface(surface), x264_encoder(x264_encoder), frame_width(width), frame_height(height), disk_space_estimator(disk_space_estimator)
1549 file_audio_encoder.reset(new AudioEncoder(AUDIO_OUTPUT_CODEC_NAME, DEFAULT_AUDIO_OUTPUT_BIT_RATE, oformat));
1550 open_output_file(filename);
1551 file_audio_encoder->add_mux(file_mux.get());
1553 frame_width_mbaligned = (frame_width + 15) & (~15);
1554 frame_height_mbaligned = (frame_height + 15) & (~15);
1558 if (global_flags.x264_video_to_http || global_flags.x264_video_to_disk) {
1559 assert(x264_encoder != nullptr);
1561 assert(x264_encoder == nullptr);
1564 enable_zerocopy_if_possible();
1565 if (!global_flags.x264_video_to_disk) {
1566 init_va(va_display);
1570 if (!global_flags.x264_video_to_disk) {
1571 memset(&seq_param, 0, sizeof(seq_param));
1572 memset(&pic_param, 0, sizeof(pic_param));
1573 memset(&slice_param, 0, sizeof(slice_param));
1576 if (!quick_sync_metrics_inited) {
1577 mixer_latency_histogram.init("mixer");
1578 qs_latency_histogram.init("quick_sync");
1579 current_file_mux_metrics.init({{ "destination", "current_file" }});
1580 total_mux_metrics.init({{ "destination", "files_total" }});
1581 global_metrics.add("current_file_start_time_seconds", &metric_current_file_start_time_seconds, Metrics::TYPE_GAUGE);
1582 global_metrics.add("quick_sync_stalled_frames", &metric_quick_sync_stalled_frames);
1583 quick_sync_metrics_inited = true;
1586 storage_thread = thread(&QuickSyncEncoderImpl::storage_task_thread, this);
1588 encode_thread = thread([this]{
1589 QOpenGLContext *context = create_context(this->surface);
1590 eglBindAPI(EGL_OPENGL_API);
1591 if (!make_current(context, this->surface)) {
1592 printf("display=%p surface=%p context=%p curr=%p err=%d\n", eglGetCurrentDisplay(), this->surface, context, eglGetCurrentContext(),
1596 encode_thread_func();
1597 delete_context(context);
1601 QuickSyncEncoderImpl::~QuickSyncEncoderImpl()
1604 release_gl_resources();
1607 QuickSyncEncoderImpl::GLSurface *QuickSyncEncoderImpl::allocate_gl_surface()
1609 for (unsigned i = 0; i < SURFACE_NUM; ++i) {
1610 if (gl_surfaces[i].refcount == 0) {
1611 ++gl_surfaces[i].refcount;
1612 return &gl_surfaces[i];
1618 void QuickSyncEncoderImpl::release_gl_surface(size_t display_frame_num)
1620 assert(surface_for_frame.count(display_frame_num));
1621 QuickSyncEncoderImpl::GLSurface *surf = surface_for_frame[display_frame_num];
1622 if (--surf->refcount == 0) {
1623 assert(surface_for_frame.count(display_frame_num));
1624 surface_for_frame.erase(display_frame_num);
1625 storage_task_queue_changed.notify_all();
1629 bool QuickSyncEncoderImpl::is_zerocopy() const
1631 return use_zerocopy;
1634 bool QuickSyncEncoderImpl::begin_frame(int64_t pts, int64_t duration, YCbCrLumaCoefficients ycbcr_coefficients, const vector<RefCountedFrame> &input_frames, GLuint *y_tex, GLuint *cbcr_tex)
1636 assert(!is_shutdown);
1637 GLSurface *surf = nullptr;
1639 // Wait until this frame slot is done encoding.
1640 unique_lock<mutex> lock(storage_task_queue_mutex);
1641 surf = allocate_gl_surface();
1642 if (surf == nullptr) {
1643 fprintf(stderr, "Warning: No free slots for frame %d, rendering has to wait for H.264 encoder\n",
1644 current_storage_frame);
1645 ++metric_quick_sync_stalled_frames;
1646 storage_task_queue_changed.wait(lock, [this, &surf]{
1647 if (storage_thread_should_quit)
1649 surf = allocate_gl_surface();
1650 return surf != nullptr;
1653 if (storage_thread_should_quit) return false;
1654 assert(surf != nullptr);
1655 surface_for_frame[current_storage_frame] = surf;
1659 *y_tex = surf->y_tex;
1660 *cbcr_tex = surf->cbcr_tex;
1662 surf->y_tex = *y_tex;
1663 surf->cbcr_tex = *cbcr_tex;
1666 if (!global_flags.x264_video_to_disk) {
1667 VAStatus va_status = vaDeriveImage(va_dpy, surf->src_surface, &surf->surface_image);
1668 CHECK_VASTATUS(va_status, "vaDeriveImage");
1671 VABufferInfo buf_info;
1672 buf_info.mem_type = VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME; // or VA_SURFACE_ATTRIB_MEM_TYPE_KERNEL_DRM?
1673 va_status = vaAcquireBufferHandle(va_dpy, surf->surface_image.buf, &buf_info);
1674 CHECK_VASTATUS(va_status, "vaAcquireBufferHandle");
1677 surf->y_egl_image = EGL_NO_IMAGE_KHR;
1678 EGLint y_attribs[] = {
1679 EGL_WIDTH, frame_width,
1680 EGL_HEIGHT, frame_height,
1681 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('R', '8', ' ', ' '),
1682 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
1683 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[0]),
1684 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[0]),
1688 surf->y_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, y_attribs);
1689 assert(surf->y_egl_image != EGL_NO_IMAGE_KHR);
1691 // Associate Y image to a texture.
1692 glBindTexture(GL_TEXTURE_2D, *y_tex);
1693 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->y_egl_image);
1695 // Create CbCr image.
1696 surf->cbcr_egl_image = EGL_NO_IMAGE_KHR;
1697 EGLint cbcr_attribs[] = {
1698 EGL_WIDTH, frame_width,
1699 EGL_HEIGHT, frame_height,
1700 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('G', 'R', '8', '8'),
1701 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
1702 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[1]),
1703 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[1]),
1707 surf->cbcr_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, cbcr_attribs);
1708 assert(surf->cbcr_egl_image != EGL_NO_IMAGE_KHR);
1710 // Associate CbCr image to a texture.
1711 glBindTexture(GL_TEXTURE_2D, *cbcr_tex);
1712 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->cbcr_egl_image);
1716 current_video_frame = PendingFrame{ {}, input_frames, pts, duration, ycbcr_coefficients };
1721 void QuickSyncEncoderImpl::add_audio(int64_t pts, vector<float> audio)
1723 assert(!is_shutdown);
1724 file_audio_encoder->encode_audio(audio, pts + global_delay());
1727 RefCountedGLsync QuickSyncEncoderImpl::end_frame()
1729 assert(!is_shutdown);
1731 if (!use_zerocopy) {
1732 GLenum type = global_flags.x264_bit_depth > 8 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_BYTE;
1735 unique_lock<mutex> lock(storage_task_queue_mutex);
1736 surf = surface_for_frame[current_storage_frame];
1737 assert(surf != nullptr);
1740 glPixelStorei(GL_PACK_ROW_LENGTH, 0);
1743 glBindBuffer(GL_PIXEL_PACK_BUFFER, surf->pbo);
1746 glBindTexture(GL_TEXTURE_2D, surf->y_tex);
1748 glGetTexImage(GL_TEXTURE_2D, 0, GL_RED, type, BUFFER_OFFSET(surf->y_offset));
1751 glBindTexture(GL_TEXTURE_2D, surf->cbcr_tex);
1753 glGetTexImage(GL_TEXTURE_2D, 0, GL_RG, type, BUFFER_OFFSET(surf->cbcr_offset));
1756 // We don't own these; the caller does.
1757 surf->y_tex = surf->cbcr_tex = 0;
1759 glBindTexture(GL_TEXTURE_2D, 0);
1761 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1764 glMemoryBarrier(GL_TEXTURE_UPDATE_BARRIER_BIT | GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT);
1768 RefCountedGLsync fence = RefCountedGLsync(GL_SYNC_GPU_COMMANDS_COMPLETE, /*flags=*/0);
1770 glFlush(); // Make the H.264 thread see the fence as soon as possible.
1774 unique_lock<mutex> lock(frame_queue_mutex);
1775 current_video_frame.fence = fence;
1776 pending_video_frames.push(move(current_video_frame));
1777 ++current_storage_frame;
1779 frame_queue_nonempty.notify_all();
1783 void QuickSyncEncoderImpl::shutdown()
1790 unique_lock<mutex> lock(frame_queue_mutex);
1791 encode_thread_should_quit = true;
1792 frame_queue_nonempty.notify_all();
1794 encode_thread.join();
1796 unique_lock<mutex> lock(storage_task_queue_mutex);
1797 storage_thread_should_quit = true;
1798 frame_queue_nonempty.notify_all();
1799 storage_task_queue_changed.notify_all();
1801 storage_thread.join();
1803 // Encode any leftover audio in the queues, and also any delayed frames.
1804 file_audio_encoder->encode_last_audio();
1806 if (!global_flags.x264_video_to_disk) {
1813 void QuickSyncEncoderImpl::close_file()
1816 metric_current_file_start_time_seconds = 0.0 / 0.0;
1819 void QuickSyncEncoderImpl::open_output_file(const std::string &filename)
1821 AVFormatContext *avctx = avformat_alloc_context();
1822 avctx->oformat = av_guess_format(NULL, filename.c_str(), NULL);
1823 assert(filename.size() < sizeof(avctx->filename) - 1);
1824 strcpy(avctx->filename, filename.c_str());
1826 string url = "file:" + filename;
1827 int ret = avio_open2(&avctx->pb, url.c_str(), AVIO_FLAG_WRITE, &avctx->interrupt_callback, NULL);
1829 char tmp[AV_ERROR_MAX_STRING_SIZE];
1830 fprintf(stderr, "%s: avio_open2() failed: %s\n", filename.c_str(), av_make_error_string(tmp, sizeof(tmp), ret));
1834 string video_extradata; // FIXME: See other comment about global headers.
1835 if (global_flags.x264_video_to_disk) {
1836 video_extradata = x264_encoder->get_global_headers();
1839 current_file_mux_metrics.reset();
1841 AVCodecParametersWithDeleter audio_codecpar = file_audio_encoder->get_codec_parameters();
1842 file_mux.reset(new Mux(avctx, frame_width, frame_height, Mux::CODEC_H264, video_extradata, audio_codecpar.get(), TIMEBASE,
1843 std::bind(&DiskSpaceEstimator::report_write, disk_space_estimator, filename, _1),
1844 { ¤t_file_mux_metrics, &total_mux_metrics }));
1845 metric_current_file_start_time_seconds = get_timestamp_for_metrics();
1847 if (global_flags.x264_video_to_disk) {
1848 x264_encoder->add_mux(file_mux.get());
1852 void QuickSyncEncoderImpl::encode_thread_func()
1854 pthread_setname_np(pthread_self(), "QS_Encode");
1856 int64_t last_dts = -1;
1857 int gop_start_display_frame_num = 0;
1858 for (int display_frame_num = 0; ; ++display_frame_num) {
1859 // Wait for the frame to be in the queue. Note that this only means
1860 // we started rendering it.
1863 unique_lock<mutex> lock(frame_queue_mutex);
1864 frame_queue_nonempty.wait(lock, [this]{
1865 return encode_thread_should_quit || !pending_video_frames.empty();
1867 if (encode_thread_should_quit && pending_video_frames.empty()) {
1868 // We may have queued frames left in the reorder buffer
1869 // that were supposed to be B-frames, but have no P-frame
1870 // to be encoded against. If so, encode them all as
1871 // P-frames instead. Note that this happens under the mutex,
1872 // but nobody else uses it at this point, since we're shutting down,
1873 // so there's no contention.
1874 encode_remaining_frames_as_p(quicksync_encoding_frame_num, gop_start_display_frame_num, last_dts);
1877 frame = move(pending_video_frames.front());
1878 pending_video_frames.pop();
1882 // Pass the frame on to x264 (or uncompressed to HTTP) as needed.
1883 // Note that this implicitly waits for the frame to be done rendering.
1884 pass_frame(frame, display_frame_num, frame.pts, frame.duration);
1886 if (global_flags.x264_video_to_disk) {
1887 unique_lock<mutex> lock(storage_task_queue_mutex);
1888 release_gl_surface(display_frame_num);
1892 reorder_buffer[display_frame_num] = move(frame);
1894 // Now encode as many QuickSync frames as we can using the frames we have available.
1895 // (It could be zero, or it could be multiple.) FIXME: make a function.
1898 int frame_type, quicksync_display_frame_num;
1899 encoding2display_order(quicksync_encoding_frame_num, intra_period, intra_idr_period, ip_period,
1900 &quicksync_display_frame_num, &frame_type, &pts_lag);
1901 if (!reorder_buffer.count(quicksync_display_frame_num)) {
1904 frame = move(reorder_buffer[quicksync_display_frame_num]);
1905 reorder_buffer.erase(quicksync_display_frame_num);
1907 if (frame_type == FRAME_IDR) {
1908 // Release any reference frames from the previous GOP.
1909 for (const ReferenceFrame &frame : reference_frames) {
1910 release_gl_surface(frame.display_number);
1912 reference_frames.clear();
1913 current_ref_frame_num = 0;
1914 gop_start_display_frame_num = quicksync_display_frame_num;
1917 // Determine the dts of this frame.
1919 if (pts_lag == -1) {
1920 assert(last_dts != -1);
1921 dts = last_dts + (TIMEBASE / MAX_FPS);
1923 dts = frame.pts - pts_lag;
1927 encode_frame(frame, quicksync_encoding_frame_num, quicksync_display_frame_num, gop_start_display_frame_num, frame_type, frame.pts, dts, frame.duration, frame.ycbcr_coefficients);
1928 ++quicksync_encoding_frame_num;
1933 void QuickSyncEncoderImpl::encode_remaining_frames_as_p(int encoding_frame_num, int gop_start_display_frame_num, int64_t last_dts)
1935 if (reorder_buffer.empty()) {
1939 for (auto &pending_frame : reorder_buffer) {
1940 int display_frame_num = pending_frame.first;
1941 assert(display_frame_num > 0);
1942 PendingFrame frame = move(pending_frame.second);
1943 int64_t dts = last_dts + (TIMEBASE / MAX_FPS);
1944 printf("Finalizing encode: Encoding leftover frame %d as P-frame instead of B-frame.\n", display_frame_num);
1945 encode_frame(frame, encoding_frame_num++, display_frame_num, gop_start_display_frame_num, FRAME_P, frame.pts, dts, frame.duration, frame.ycbcr_coefficients);
1950 void QuickSyncEncoderImpl::add_packet_for_uncompressed_frame(int64_t pts, int64_t duration, const uint8_t *data)
1953 memset(&pkt, 0, sizeof(pkt));
1955 pkt.data = const_cast<uint8_t *>(data);
1956 pkt.size = frame_width * frame_height * 2;
1957 pkt.stream_index = 0;
1958 pkt.flags = AV_PKT_FLAG_KEY;
1959 pkt.duration = duration;
1960 stream_mux->add_packet(pkt, pts, pts);
1965 void memcpy_with_pitch(uint8_t *dst, const uint8_t *src, size_t src_width, size_t dst_pitch, size_t height)
1967 if (src_width == dst_pitch) {
1968 memcpy(dst, src, src_width * height);
1970 for (size_t y = 0; y < height; ++y) {
1971 const uint8_t *sptr = src + y * src_width;
1972 uint8_t *dptr = dst + y * dst_pitch;
1973 memcpy(dptr, sptr, src_width);
1980 void QuickSyncEncoderImpl::pass_frame(QuickSyncEncoderImpl::PendingFrame frame, int display_frame_num, int64_t pts, int64_t duration)
1982 // Wait for the GPU to be done with the frame.
1985 sync_status = glClientWaitSync(frame.fence.get(), 0, 1000000000);
1987 } while (sync_status == GL_TIMEOUT_EXPIRED);
1988 assert(sync_status != GL_WAIT_FAILED);
1990 ReceivedTimestamps received_ts = find_received_timestamp(frame.input_frames);
1991 static int frameno = 0;
1992 print_latency("Current mixer latency (video inputs → ready for encode):",
1993 received_ts, false, &frameno, &mixer_latency_histogram);
1995 // Release back any input frames we needed to render this frame.
1996 frame.input_frames.clear();
2000 unique_lock<mutex> lock(storage_task_queue_mutex);
2001 surf = surface_for_frame[display_frame_num];
2002 assert(surf != nullptr);
2004 uint8_t *data = reinterpret_cast<uint8_t *>(surf->y_ptr);
2005 if (global_flags.uncompressed_video_to_http) {
2006 add_packet_for_uncompressed_frame(pts, duration, data);
2007 } else if (global_flags.x264_video_to_http || global_flags.x264_video_to_disk) {
2008 x264_encoder->add_frame(pts, duration, frame.ycbcr_coefficients, data, received_ts);
2012 void QuickSyncEncoderImpl::encode_frame(QuickSyncEncoderImpl::PendingFrame frame, int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num,
2013 int frame_type, int64_t pts, int64_t dts, int64_t duration, YCbCrLumaCoefficients ycbcr_coefficients)
2015 const ReceivedTimestamps received_ts = find_received_timestamp(frame.input_frames);
2019 unique_lock<mutex> lock(storage_task_queue_mutex);
2020 surf = surface_for_frame[display_frame_num];
2021 assert(surf != nullptr);
2026 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->y_egl_image);
2027 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->cbcr_egl_image);
2028 va_status = vaReleaseBufferHandle(va_dpy, surf->surface_image.buf);
2029 CHECK_VASTATUS(va_status, "vaReleaseBufferHandle");
2031 // Upload the frame to VA-API.
2032 unsigned char *surface_p = nullptr;
2033 vaMapBuffer(va_dpy, surf->surface_image.buf, (void **)&surface_p);
2035 unsigned char *va_y_ptr = (unsigned char *)surface_p + surf->surface_image.offsets[0];
2036 memcpy_with_pitch(va_y_ptr, surf->y_ptr, frame_width, surf->surface_image.pitches[0], frame_height);
2038 unsigned char *va_cbcr_ptr = (unsigned char *)surface_p + surf->surface_image.offsets[1];
2039 memcpy_with_pitch(va_cbcr_ptr, surf->cbcr_ptr, (frame_width / 2) * sizeof(uint16_t), surf->surface_image.pitches[1], frame_height / 2);
2041 va_status = vaUnmapBuffer(va_dpy, surf->surface_image.buf);
2042 CHECK_VASTATUS(va_status, "vaUnmapBuffer");
2045 va_status = vaDestroyImage(va_dpy, surf->surface_image.image_id);
2046 CHECK_VASTATUS(va_status, "vaDestroyImage");
2048 // Schedule the frame for encoding.
2049 VASurfaceID va_surface = surf->src_surface;
2050 va_status = vaBeginPicture(va_dpy, context_id, va_surface);
2051 CHECK_VASTATUS(va_status, "vaBeginPicture");
2053 if (frame_type == FRAME_IDR) {
2054 // FIXME: If the mux wants global headers, we should not put the
2055 // SPS/PPS before each IDR frame, but rather put it into the
2056 // codec extradata (formatted differently?).
2058 // NOTE: If we change ycbcr_coefficients, it will not take effect
2059 // before the next IDR frame. This is acceptable, as it should only
2060 // happen on a mode change, which is rare.
2062 render_picture(surf, frame_type, display_frame_num, gop_start_display_frame_num);
2063 if (h264_packedheader) {
2064 render_packedsequence(ycbcr_coefficients);
2065 render_packedpicture();
2068 //render_sequence();
2069 render_picture(surf, frame_type, display_frame_num, gop_start_display_frame_num);
2071 render_slice(encoding_frame_num, display_frame_num, gop_start_display_frame_num, frame_type);
2073 va_status = vaEndPicture(va_dpy, context_id);
2074 CHECK_VASTATUS(va_status, "vaEndPicture");
2076 update_ReferenceFrames(display_frame_num, frame_type);
2078 vector<size_t> ref_display_frame_numbers;
2080 // Lock the references for this frame; otherwise, they could be
2081 // rendered to before this frame is done encoding.
2083 unique_lock<mutex> lock(storage_task_queue_mutex);
2084 for (const ReferenceFrame &frame : reference_frames) {
2085 assert(surface_for_frame.count(frame.display_number));
2086 ++surface_for_frame[frame.display_number]->refcount;
2087 ref_display_frame_numbers.push_back(frame.display_number);
2091 // so now the data is done encoding (well, async job kicked off)...
2092 // we send that to the storage thread
2094 tmp.display_order = display_frame_num;
2095 tmp.frame_type = frame_type;
2098 tmp.duration = duration;
2099 tmp.ycbcr_coefficients = ycbcr_coefficients;
2100 tmp.received_ts = received_ts;
2101 tmp.ref_display_frame_numbers = move(ref_display_frame_numbers);
2102 storage_task_enqueue(move(tmp));
2106 QuickSyncEncoder::QuickSyncEncoder(const std::string &filename, ResourcePool *resource_pool, QSurface *surface, const string &va_display, int width, int height, AVOutputFormat *oformat, X264Encoder *x264_encoder, DiskSpaceEstimator *disk_space_estimator)
2107 : impl(new QuickSyncEncoderImpl(filename, resource_pool, surface, va_display, width, height, oformat, x264_encoder, disk_space_estimator)) {}
2109 // Must be defined here because unique_ptr<> destructor needs to know the impl.
2110 QuickSyncEncoder::~QuickSyncEncoder() {}
2112 void QuickSyncEncoder::add_audio(int64_t pts, vector<float> audio)
2114 impl->add_audio(pts, audio);
2117 bool QuickSyncEncoder::is_zerocopy() const
2119 return impl->is_zerocopy();
2122 bool QuickSyncEncoder::begin_frame(int64_t pts, int64_t duration, YCbCrLumaCoefficients ycbcr_coefficients, const vector<RefCountedFrame> &input_frames, GLuint *y_tex, GLuint *cbcr_tex)
2124 return impl->begin_frame(pts, duration, ycbcr_coefficients, input_frames, y_tex, cbcr_tex);
2127 RefCountedGLsync QuickSyncEncoder::end_frame()
2129 return impl->end_frame();
2132 void QuickSyncEncoder::shutdown()
2137 void QuickSyncEncoder::close_file()
2142 void QuickSyncEncoder::set_stream_mux(Mux *mux)
2144 impl->set_stream_mux(mux);
2147 int64_t QuickSyncEncoder::global_delay() const {
2148 return impl->global_delay();