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 mux_metrics_inited = false;
72 LatencyHistogram mixer_latency_histogram, qs_latency_histogram;
73 MuxMetrics current_file_mux_metrics, total_mux_metrics;
77 #define CHECK_VASTATUS(va_status, func) \
78 if (va_status != VA_STATUS_SUCCESS) { \
79 fprintf(stderr, "%s:%d (%s) failed with %d\n", __func__, __LINE__, func, va_status); \
83 #define BUFFER_OFFSET(i) ((char *)NULL + (i))
85 //#include "loadsurface.h"
87 #define NAL_REF_IDC_NONE 0
88 #define NAL_REF_IDC_LOW 1
89 #define NAL_REF_IDC_MEDIUM 2
90 #define NAL_REF_IDC_HIGH 3
98 #define SLICE_TYPE_P 0
99 #define SLICE_TYPE_B 1
100 #define SLICE_TYPE_I 2
101 #define IS_P_SLICE(type) (SLICE_TYPE_P == (type))
102 #define IS_B_SLICE(type) (SLICE_TYPE_B == (type))
103 #define IS_I_SLICE(type) (SLICE_TYPE_I == (type))
106 #define ENTROPY_MODE_CAVLC 0
107 #define ENTROPY_MODE_CABAC 1
109 #define PROFILE_IDC_BASELINE 66
110 #define PROFILE_IDC_MAIN 77
111 #define PROFILE_IDC_HIGH 100
113 #define BITSTREAM_ALLOCATE_STEPPING 4096
115 static constexpr unsigned int MaxFrameNum = (2<<16);
116 static constexpr unsigned int MaxPicOrderCntLsb = (2<<8);
117 static constexpr unsigned int Log2MaxFrameNum = 16;
118 static constexpr unsigned int Log2MaxPicOrderCntLsb = 8;
119 static constexpr int rc_default_modes[] = { // Priority list of modes.
122 VA_RC_VBR_CONSTRAINED,
130 // Supposedly vaRenderPicture() is supposed to destroy the buffer implicitly,
131 // but if we don't delete it here, we get leaks. The GStreamer implementation
133 static void render_picture_and_delete(VADisplay dpy, VAContextID context, VABufferID *buffers, int num_buffers)
135 VAStatus va_status = vaRenderPicture(dpy, context, buffers, num_buffers);
136 CHECK_VASTATUS(va_status, "vaRenderPicture");
138 for (int i = 0; i < num_buffers; ++i) {
139 va_status = vaDestroyBuffer(dpy, buffers[i]);
140 CHECK_VASTATUS(va_status, "vaDestroyBuffer");
145 va_swap32(unsigned int val)
147 unsigned char *pval = (unsigned char *)&val;
149 return ((pval[0] << 24) |
156 bitstream_start(bitstream *bs)
158 bs->max_size_in_dword = BITSTREAM_ALLOCATE_STEPPING;
159 bs->buffer = (unsigned int *)calloc(bs->max_size_in_dword * sizeof(int), 1);
164 bitstream_end(bitstream *bs)
166 int pos = (bs->bit_offset >> 5);
167 int bit_offset = (bs->bit_offset & 0x1f);
168 int bit_left = 32 - bit_offset;
171 bs->buffer[pos] = va_swap32((bs->buffer[pos] << bit_left));
176 bitstream_put_ui(bitstream *bs, unsigned int val, int size_in_bits)
178 int pos = (bs->bit_offset >> 5);
179 int bit_offset = (bs->bit_offset & 0x1f);
180 int bit_left = 32 - bit_offset;
185 bs->bit_offset += size_in_bits;
187 if (bit_left > size_in_bits) {
188 bs->buffer[pos] = (bs->buffer[pos] << size_in_bits | val);
190 size_in_bits -= bit_left;
191 if (bit_left >= 32) {
192 bs->buffer[pos] = (val >> size_in_bits);
194 bs->buffer[pos] = (bs->buffer[pos] << bit_left) | (val >> size_in_bits);
196 bs->buffer[pos] = va_swap32(bs->buffer[pos]);
198 if (pos + 1 == bs->max_size_in_dword) {
199 bs->max_size_in_dword += BITSTREAM_ALLOCATE_STEPPING;
200 bs->buffer = (unsigned int *)realloc(bs->buffer, bs->max_size_in_dword * sizeof(unsigned int));
203 bs->buffer[pos + 1] = val;
208 bitstream_put_ue(bitstream *bs, unsigned int val)
210 int size_in_bits = 0;
218 bitstream_put_ui(bs, 0, size_in_bits - 1); // leading zero
219 bitstream_put_ui(bs, val, size_in_bits);
223 bitstream_put_se(bitstream *bs, int val)
225 unsigned int new_val;
230 new_val = 2 * val - 1;
232 bitstream_put_ue(bs, new_val);
236 bitstream_byte_aligning(bitstream *bs, int bit)
238 int bit_offset = (bs->bit_offset & 0x7);
239 int bit_left = 8 - bit_offset;
245 assert(bit == 0 || bit == 1);
248 new_val = (1 << bit_left) - 1;
252 bitstream_put_ui(bs, new_val, bit_left);
256 rbsp_trailing_bits(bitstream *bs)
258 bitstream_put_ui(bs, 1, 1);
259 bitstream_byte_aligning(bs, 0);
262 static void nal_start_code_prefix(bitstream *bs)
264 bitstream_put_ui(bs, 0x00000001, 32);
267 static void nal_header(bitstream *bs, int nal_ref_idc, int nal_unit_type)
269 bitstream_put_ui(bs, 0, 1); /* forbidden_zero_bit: 0 */
270 bitstream_put_ui(bs, nal_ref_idc, 2);
271 bitstream_put_ui(bs, nal_unit_type, 5);
274 void QuickSyncEncoderImpl::sps_rbsp(YCbCrLumaCoefficients ycbcr_coefficients, bitstream *bs)
276 int profile_idc = PROFILE_IDC_BASELINE;
278 if (h264_profile == VAProfileH264High)
279 profile_idc = PROFILE_IDC_HIGH;
280 else if (h264_profile == VAProfileH264Main)
281 profile_idc = PROFILE_IDC_MAIN;
283 bitstream_put_ui(bs, profile_idc, 8); /* profile_idc */
284 bitstream_put_ui(bs, !!(constraint_set_flag & 1), 1); /* constraint_set0_flag */
285 bitstream_put_ui(bs, !!(constraint_set_flag & 2), 1); /* constraint_set1_flag */
286 bitstream_put_ui(bs, !!(constraint_set_flag & 4), 1); /* constraint_set2_flag */
287 bitstream_put_ui(bs, !!(constraint_set_flag & 8), 1); /* constraint_set3_flag */
288 bitstream_put_ui(bs, 0, 4); /* reserved_zero_4bits */
289 bitstream_put_ui(bs, seq_param.level_idc, 8); /* level_idc */
290 bitstream_put_ue(bs, seq_param.seq_parameter_set_id); /* seq_parameter_set_id */
292 if ( profile_idc == PROFILE_IDC_HIGH) {
293 bitstream_put_ue(bs, 1); /* chroma_format_idc = 1, 4:2:0 */
294 bitstream_put_ue(bs, 0); /* bit_depth_luma_minus8 */
295 bitstream_put_ue(bs, 0); /* bit_depth_chroma_minus8 */
296 bitstream_put_ui(bs, 0, 1); /* qpprime_y_zero_transform_bypass_flag */
297 bitstream_put_ui(bs, 0, 1); /* seq_scaling_matrix_present_flag */
300 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_frame_num_minus4); /* log2_max_frame_num_minus4 */
301 bitstream_put_ue(bs, seq_param.seq_fields.bits.pic_order_cnt_type); /* pic_order_cnt_type */
303 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0)
304 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4); /* log2_max_pic_order_cnt_lsb_minus4 */
309 bitstream_put_ue(bs, seq_param.max_num_ref_frames); /* num_ref_frames */
310 bitstream_put_ui(bs, 0, 1); /* gaps_in_frame_num_value_allowed_flag */
312 bitstream_put_ue(bs, seq_param.picture_width_in_mbs - 1); /* pic_width_in_mbs_minus1 */
313 bitstream_put_ue(bs, seq_param.picture_height_in_mbs - 1); /* pic_height_in_map_units_minus1 */
314 bitstream_put_ui(bs, seq_param.seq_fields.bits.frame_mbs_only_flag, 1); /* frame_mbs_only_flag */
316 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
320 bitstream_put_ui(bs, seq_param.seq_fields.bits.direct_8x8_inference_flag, 1); /* direct_8x8_inference_flag */
321 bitstream_put_ui(bs, seq_param.frame_cropping_flag, 1); /* frame_cropping_flag */
323 if (seq_param.frame_cropping_flag) {
324 bitstream_put_ue(bs, seq_param.frame_crop_left_offset); /* frame_crop_left_offset */
325 bitstream_put_ue(bs, seq_param.frame_crop_right_offset); /* frame_crop_right_offset */
326 bitstream_put_ue(bs, seq_param.frame_crop_top_offset); /* frame_crop_top_offset */
327 bitstream_put_ue(bs, seq_param.frame_crop_bottom_offset); /* frame_crop_bottom_offset */
330 //if ( frame_bit_rate < 0 ) { //TODO EW: the vui header isn't correct
332 bitstream_put_ui(bs, 0, 1); /* vui_parameters_present_flag */
334 // See H.264 annex E for the definition of this header.
335 bitstream_put_ui(bs, 1, 1); /* vui_parameters_present_flag */
336 bitstream_put_ui(bs, 0, 1); /* aspect_ratio_info_present_flag */
337 bitstream_put_ui(bs, 0, 1); /* overscan_info_present_flag */
338 bitstream_put_ui(bs, 1, 1); /* video_signal_type_present_flag */
340 bitstream_put_ui(bs, 5, 3); /* video_format (5 = Unspecified) */
341 bitstream_put_ui(bs, 0, 1); /* video_full_range_flag */
342 bitstream_put_ui(bs, 1, 1); /* colour_description_present_flag */
344 bitstream_put_ui(bs, 1, 8); /* colour_primaries (1 = BT.709) */
345 bitstream_put_ui(bs, 2, 8); /* transfer_characteristics (2 = unspecified, since we use sRGB) */
346 if (ycbcr_coefficients == YCBCR_REC_709) {
347 bitstream_put_ui(bs, 1, 8); /* matrix_coefficients (1 = BT.709) */
349 assert(ycbcr_coefficients == YCBCR_REC_601);
350 bitstream_put_ui(bs, 6, 8); /* matrix_coefficients (6 = BT.601/SMPTE 170M) */
354 bitstream_put_ui(bs, 0, 1); /* chroma_loc_info_present_flag */
355 bitstream_put_ui(bs, 1, 1); /* timing_info_present_flag */
357 bitstream_put_ui(bs, 1, 32); // FPS
358 bitstream_put_ui(bs, TIMEBASE * 2, 32); // FPS
359 bitstream_put_ui(bs, 1, 1);
361 bitstream_put_ui(bs, 1, 1); /* nal_hrd_parameters_present_flag */
364 bitstream_put_ue(bs, 0); /* cpb_cnt_minus1 */
365 bitstream_put_ui(bs, 4, 4); /* bit_rate_scale */
366 bitstream_put_ui(bs, 6, 4); /* cpb_size_scale */
368 bitstream_put_ue(bs, frame_bitrate - 1); /* bit_rate_value_minus1[0] */
369 bitstream_put_ue(bs, frame_bitrate*8 - 1); /* cpb_size_value_minus1[0] */
370 bitstream_put_ui(bs, 1, 1); /* cbr_flag[0] */
372 bitstream_put_ui(bs, 23, 5); /* initial_cpb_removal_delay_length_minus1 */
373 bitstream_put_ui(bs, 23, 5); /* cpb_removal_delay_length_minus1 */
374 bitstream_put_ui(bs, 23, 5); /* dpb_output_delay_length_minus1 */
375 bitstream_put_ui(bs, 23, 5); /* time_offset_length */
377 bitstream_put_ui(bs, 0, 1); /* vcl_hrd_parameters_present_flag */
378 bitstream_put_ui(bs, 0, 1); /* low_delay_hrd_flag */
380 bitstream_put_ui(bs, 0, 1); /* pic_struct_present_flag */
381 bitstream_put_ui(bs, 0, 1); /* bitstream_restriction_flag */
384 rbsp_trailing_bits(bs); /* rbsp_trailing_bits */
388 void QuickSyncEncoderImpl::pps_rbsp(bitstream *bs)
390 bitstream_put_ue(bs, pic_param.pic_parameter_set_id); /* pic_parameter_set_id */
391 bitstream_put_ue(bs, pic_param.seq_parameter_set_id); /* seq_parameter_set_id */
393 bitstream_put_ui(bs, pic_param.pic_fields.bits.entropy_coding_mode_flag, 1); /* entropy_coding_mode_flag */
395 bitstream_put_ui(bs, 0, 1); /* pic_order_present_flag: 0 */
397 bitstream_put_ue(bs, 0); /* num_slice_groups_minus1 */
399 bitstream_put_ue(bs, pic_param.num_ref_idx_l0_active_minus1); /* num_ref_idx_l0_active_minus1 */
400 bitstream_put_ue(bs, pic_param.num_ref_idx_l1_active_minus1); /* num_ref_idx_l1_active_minus1 1 */
402 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_pred_flag, 1); /* weighted_pred_flag: 0 */
403 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_bipred_idc, 2); /* weighted_bipred_idc: 0 */
405 bitstream_put_se(bs, pic_param.pic_init_qp - 26); /* pic_init_qp_minus26 */
406 bitstream_put_se(bs, 0); /* pic_init_qs_minus26 */
407 bitstream_put_se(bs, 0); /* chroma_qp_index_offset */
409 bitstream_put_ui(bs, pic_param.pic_fields.bits.deblocking_filter_control_present_flag, 1); /* deblocking_filter_control_present_flag */
410 bitstream_put_ui(bs, 0, 1); /* constrained_intra_pred_flag */
411 bitstream_put_ui(bs, 0, 1); /* redundant_pic_cnt_present_flag */
414 bitstream_put_ui(bs, pic_param.pic_fields.bits.transform_8x8_mode_flag, 1); /*transform_8x8_mode_flag */
415 bitstream_put_ui(bs, 0, 1); /* pic_scaling_matrix_present_flag */
416 bitstream_put_se(bs, pic_param.second_chroma_qp_index_offset ); /*second_chroma_qp_index_offset */
418 rbsp_trailing_bits(bs);
421 void QuickSyncEncoderImpl::slice_header(bitstream *bs)
423 int first_mb_in_slice = slice_param.macroblock_address;
425 bitstream_put_ue(bs, first_mb_in_slice); /* first_mb_in_slice: 0 */
426 bitstream_put_ue(bs, slice_param.slice_type); /* slice_type */
427 bitstream_put_ue(bs, slice_param.pic_parameter_set_id); /* pic_parameter_set_id: 0 */
428 bitstream_put_ui(bs, pic_param.frame_num, seq_param.seq_fields.bits.log2_max_frame_num_minus4 + 4); /* frame_num */
430 /* frame_mbs_only_flag == 1 */
431 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
436 if (pic_param.pic_fields.bits.idr_pic_flag)
437 bitstream_put_ue(bs, slice_param.idr_pic_id); /* idr_pic_id: 0 */
439 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0) {
440 bitstream_put_ui(bs, pic_param.CurrPic.TopFieldOrderCnt, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 + 4);
441 /* pic_order_present_flag == 0 */
447 /* redundant_pic_cnt_present_flag == 0 */
449 if (IS_P_SLICE(slice_param.slice_type)) {
450 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
452 if (slice_param.num_ref_idx_active_override_flag)
453 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
455 /* ref_pic_list_reordering */
456 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
457 } else if (IS_B_SLICE(slice_param.slice_type)) {
458 bitstream_put_ui(bs, slice_param.direct_spatial_mv_pred_flag, 1); /* direct_spatial_mv_pred: 1 */
460 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
462 if (slice_param.num_ref_idx_active_override_flag) {
463 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
464 bitstream_put_ue(bs, slice_param.num_ref_idx_l1_active_minus1);
467 /* ref_pic_list_reordering */
468 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
469 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l1: 0 */
472 if ((pic_param.pic_fields.bits.weighted_pred_flag &&
473 IS_P_SLICE(slice_param.slice_type)) ||
474 ((pic_param.pic_fields.bits.weighted_bipred_idc == 1) &&
475 IS_B_SLICE(slice_param.slice_type))) {
476 /* FIXME: fill weight/offset table */
480 /* dec_ref_pic_marking */
481 if (pic_param.pic_fields.bits.reference_pic_flag) { /* nal_ref_idc != 0 */
482 unsigned char no_output_of_prior_pics_flag = 0;
483 unsigned char long_term_reference_flag = 0;
484 unsigned char adaptive_ref_pic_marking_mode_flag = 0;
486 if (pic_param.pic_fields.bits.idr_pic_flag) {
487 bitstream_put_ui(bs, no_output_of_prior_pics_flag, 1); /* no_output_of_prior_pics_flag: 0 */
488 bitstream_put_ui(bs, long_term_reference_flag, 1); /* long_term_reference_flag: 0 */
490 bitstream_put_ui(bs, adaptive_ref_pic_marking_mode_flag, 1); /* adaptive_ref_pic_marking_mode_flag: 0 */
494 if (pic_param.pic_fields.bits.entropy_coding_mode_flag &&
495 !IS_I_SLICE(slice_param.slice_type))
496 bitstream_put_ue(bs, slice_param.cabac_init_idc); /* cabac_init_idc: 0 */
498 bitstream_put_se(bs, slice_param.slice_qp_delta); /* slice_qp_delta: 0 */
500 /* ignore for SP/SI */
502 if (pic_param.pic_fields.bits.deblocking_filter_control_present_flag) {
503 bitstream_put_ue(bs, slice_param.disable_deblocking_filter_idc); /* disable_deblocking_filter_idc: 0 */
505 if (slice_param.disable_deblocking_filter_idc != 1) {
506 bitstream_put_se(bs, slice_param.slice_alpha_c0_offset_div2); /* slice_alpha_c0_offset_div2: 2 */
507 bitstream_put_se(bs, slice_param.slice_beta_offset_div2); /* slice_beta_offset_div2: 2 */
511 if (pic_param.pic_fields.bits.entropy_coding_mode_flag) {
512 bitstream_byte_aligning(bs, 1);
516 int QuickSyncEncoderImpl::build_packed_pic_buffer(unsigned char **header_buffer)
520 bitstream_start(&bs);
521 nal_start_code_prefix(&bs);
522 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_PPS);
526 *header_buffer = (unsigned char *)bs.buffer;
527 return bs.bit_offset;
531 QuickSyncEncoderImpl::build_packed_seq_buffer(YCbCrLumaCoefficients ycbcr_coefficients, unsigned char **header_buffer)
535 bitstream_start(&bs);
536 nal_start_code_prefix(&bs);
537 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_SPS);
538 sps_rbsp(ycbcr_coefficients, &bs);
541 *header_buffer = (unsigned char *)bs.buffer;
542 return bs.bit_offset;
545 int QuickSyncEncoderImpl::build_packed_slice_buffer(unsigned char **header_buffer)
548 int is_idr = !!pic_param.pic_fields.bits.idr_pic_flag;
549 int is_ref = !!pic_param.pic_fields.bits.reference_pic_flag;
551 bitstream_start(&bs);
552 nal_start_code_prefix(&bs);
554 if (IS_I_SLICE(slice_param.slice_type)) {
555 nal_header(&bs, NAL_REF_IDC_HIGH, is_idr ? NAL_IDR : NAL_NON_IDR);
556 } else if (IS_P_SLICE(slice_param.slice_type)) {
557 nal_header(&bs, NAL_REF_IDC_MEDIUM, NAL_NON_IDR);
559 assert(IS_B_SLICE(slice_param.slice_type));
560 nal_header(&bs, is_ref ? NAL_REF_IDC_LOW : NAL_REF_IDC_NONE, NAL_NON_IDR);
566 *header_buffer = (unsigned char *)bs.buffer;
567 return bs.bit_offset;
572 Assume frame sequence is: Frame#0, #1, #2, ..., #M, ..., #X, ... (encoding order)
573 1) period between Frame #X and Frame #N = #X - #N
574 2) 0 means infinite for intra_period/intra_idr_period, and 0 is invalid for ip_period
575 3) intra_idr_period % intra_period (intra_period > 0) and intra_period % ip_period must be 0
576 4) intra_period and intra_idr_period take precedence over ip_period
577 5) if ip_period > 1, intra_period and intra_idr_period are not the strict periods
578 of I/IDR frames, see bellow examples
579 -------------------------------------------------------------------
580 intra_period intra_idr_period ip_period frame sequence (intra_period/intra_idr_period/ip_period)
581 0 ignored 1 IDRPPPPPPP ... (No IDR/I any more)
582 0 ignored >=2 IDR(PBB)(PBB)... (No IDR/I any more)
583 1 0 ignored IDRIIIIIII... (No IDR any more)
584 1 1 ignored IDR IDR IDR IDR...
585 1 >=2 ignored IDRII IDRII IDR... (1/3/ignore)
586 >=2 0 1 IDRPPP IPPP I... (3/0/1)
587 >=2 0 >=2 IDR(PBB)(PBB)(IBB) (6/0/3)
588 (PBB)(IBB)(PBB)(IBB)...
589 >=2 >=2 1 IDRPPPPP IPPPPP IPPPPP (6/18/1)
590 IDRPPPPP IPPPPP IPPPPP...
591 >=2 >=2 >=2 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)} (6/18/3)
592 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)}...
593 {IDR(PBB)(PBB)(IBB)(PBB)} (6/12/3)
594 {IDR(PBB)(PBB)(IBB)(PBB)}...
595 {IDR(PBB)(PBB)} (6/6/3)
599 // General pts/dts strategy:
601 // Getting pts and dts right with variable frame rate (VFR) and B-frames can be a
602 // bit tricky. We assume first of all that the frame rate never goes _above_
603 // MAX_FPS, which gives us a frame period N. The decoder can always decode
604 // in at least this speed, as long at dts <= pts (the frame is not attempted
605 // presented before it is decoded). Furthermore, we never have longer chains of
606 // B-frames than a fixed constant C. (In a B-frame chain, we say that the base
607 // I/P-frame has order O=0, the B-frame depending on it directly has order O=1,
608 // etc. The last frame in the chain, which no B-frames depend on, is the “tip”
609 // frame, with an order O <= C.)
611 // Many strategies are possible, but we establish these rules:
613 // - Tip frames have dts = pts - (C-O)*N.
614 // - Non-tip frames have dts = dts_last + N.
616 // An example, with C=2 and N=10 and the data flow showed with arrows:
619 // pts: 30 40 50 60 70 80
621 // dts: 10 30 20 60 50←40
626 // To show that this works fine also with irregular spacings, let's say that
627 // the third frame is delayed a bit (something earlier was dropped). Now the
628 // situation looks like this:
631 // pts: 30 40 80 90 100 110
633 // dts: 10 30 20 90 50←40
638 // The resetting on every tip frame makes sure dts never ends up lagging a lot
639 // behind pts, and the subtraction of (C-O)*N makes sure pts <= dts.
641 // In the output of this function, if <dts_lag> is >= 0, it means to reset the
642 // dts from the current pts minus <dts_lag>, while if it's -1, the frame is not
643 // a tip frame and should be given a dts based on the previous one.
648 void encoding2display_order(
649 int encoding_order, int intra_period,
650 int intra_idr_period, int ip_period,
651 int *displaying_order,
652 int *frame_type, int *pts_lag)
654 int encoding_order_gop = 0;
658 if (intra_period == 1) { /* all are I/IDR frames */
659 *displaying_order = encoding_order;
660 if (intra_idr_period == 0)
661 *frame_type = (encoding_order == 0)?FRAME_IDR:FRAME_I;
663 *frame_type = (encoding_order % intra_idr_period == 0)?FRAME_IDR:FRAME_I;
667 if (intra_period == 0)
668 intra_idr_period = 0;
670 if (ip_period == 1) {
671 // No B-frames, sequence is like IDR PPPPP IPPPPP.
672 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % intra_idr_period);
673 *displaying_order = encoding_order;
675 if (encoding_order_gop == 0) { /* the first frame */
676 *frame_type = FRAME_IDR;
677 } else if (intra_period != 0 && /* have I frames */
678 encoding_order_gop >= 2 &&
679 (encoding_order_gop % intra_period == 0)) {
680 *frame_type = FRAME_I;
682 *frame_type = FRAME_P;
687 // We have B-frames. Sequence is like IDR (PBB)(PBB)(IBB)(PBB).
688 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % (intra_idr_period + 1));
689 *pts_lag = -1; // Most frames are not tip frames.
691 if (encoding_order_gop == 0) { /* the first frame */
692 *frame_type = FRAME_IDR;
693 *displaying_order = encoding_order;
694 // IDR frames are a special case; I honestly can't find the logic behind
695 // why this is the right thing, but it seems to line up nicely in practice :-)
696 *pts_lag = TIMEBASE / MAX_FPS;
697 } else if (((encoding_order_gop - 1) % ip_period) != 0) { /* B frames */
698 *frame_type = FRAME_B;
699 *displaying_order = encoding_order - 1;
700 if ((encoding_order_gop % ip_period) == 0) {
701 *pts_lag = 0; // Last B-frame.
703 } else if (intra_period != 0 && /* have I frames */
704 encoding_order_gop >= 2 &&
705 ((encoding_order_gop - 1) / ip_period % (intra_period / ip_period)) == 0) {
706 *frame_type = FRAME_I;
707 *displaying_order = encoding_order + ip_period - 1;
709 *frame_type = FRAME_P;
710 *displaying_order = encoding_order + ip_period - 1;
715 static const char *rc_to_string(int rc_mode)
728 case VA_RC_VBR_CONSTRAINED:
729 return "VBR_CONSTRAINED";
735 void QuickSyncEncoderImpl::enable_zerocopy_if_possible()
737 if (global_flags.x264_video_to_disk) {
738 // Quick Sync is entirely disabled.
739 use_zerocopy = false;
740 } else if (global_flags.uncompressed_video_to_http) {
741 fprintf(stderr, "Disabling zerocopy H.264 encoding due to --http-uncompressed-video.\n");
742 use_zerocopy = false;
743 } else if (global_flags.x264_video_to_http) {
744 fprintf(stderr, "Disabling zerocopy H.264 encoding due to --http-x264-video.\n");
745 use_zerocopy = false;
749 global_flags.use_zerocopy = use_zerocopy;
752 VADisplay QuickSyncEncoderImpl::va_open_display(const string &va_display)
754 if (va_display.empty()) {
755 x11_display = XOpenDisplay(NULL);
757 fprintf(stderr, "error: can't connect to X server!\n");
760 return vaGetDisplay(x11_display);
761 } else if (va_display[0] != '/') {
762 x11_display = XOpenDisplay(va_display.c_str());
764 fprintf(stderr, "error: can't connect to X server!\n");
767 return vaGetDisplay(x11_display);
769 drm_fd = open(va_display.c_str(), O_RDWR);
771 perror(va_display.c_str());
774 use_zerocopy = false;
775 return vaGetDisplayDRM(drm_fd);
779 void QuickSyncEncoderImpl::va_close_display(VADisplay va_dpy)
782 XCloseDisplay(x11_display);
783 x11_display = nullptr;
790 int QuickSyncEncoderImpl::init_va(const string &va_display)
792 VAProfile profile_list[]={VAProfileH264High, VAProfileH264Main, VAProfileH264Baseline, VAProfileH264ConstrainedBaseline};
793 VAEntrypoint *entrypoints;
794 int num_entrypoints, slice_entrypoint;
795 int support_encode = 0;
796 int major_ver, minor_ver;
800 va_dpy = va_open_display(va_display);
801 va_status = vaInitialize(va_dpy, &major_ver, &minor_ver);
802 CHECK_VASTATUS(va_status, "vaInitialize");
804 num_entrypoints = vaMaxNumEntrypoints(va_dpy);
805 entrypoints = (VAEntrypoint *)malloc(num_entrypoints * sizeof(*entrypoints));
807 fprintf(stderr, "error: failed to initialize VA entrypoints array\n");
811 /* use the highest profile */
812 for (i = 0; i < sizeof(profile_list)/sizeof(profile_list[0]); i++) {
813 if ((h264_profile != ~0) && h264_profile != profile_list[i])
816 h264_profile = profile_list[i];
817 vaQueryConfigEntrypoints(va_dpy, h264_profile, entrypoints, &num_entrypoints);
818 for (slice_entrypoint = 0; slice_entrypoint < num_entrypoints; slice_entrypoint++) {
819 if (entrypoints[slice_entrypoint] == VAEntrypointEncSlice) {
824 if (support_encode == 1)
828 if (support_encode == 0) {
829 printf("Can't find VAEntrypointEncSlice for H264 profiles. If you are using a non-Intel GPU\n");
830 printf("but have one in your system, try launching Nageru with --va-display /dev/dri/renderD128\n");
831 printf("to use VA-API against DRM instead of X11.\n");
834 switch (h264_profile) {
835 case VAProfileH264Baseline:
837 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
838 h264_entropy_mode = 0;
840 case VAProfileH264ConstrainedBaseline:
841 constraint_set_flag |= (1 << 0 | 1 << 1); /* Annex A.2.2 */
845 case VAProfileH264Main:
846 constraint_set_flag |= (1 << 1); /* Annex A.2.2 */
849 case VAProfileH264High:
850 constraint_set_flag |= (1 << 3); /* Annex A.2.4 */
853 h264_profile = VAProfileH264Baseline;
855 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
860 VAConfigAttrib attrib[VAConfigAttribTypeMax];
862 /* find out the format for the render target, and rate control mode */
863 for (i = 0; i < VAConfigAttribTypeMax; i++)
864 attrib[i].type = (VAConfigAttribType)i;
866 va_status = vaGetConfigAttributes(va_dpy, h264_profile, VAEntrypointEncSlice,
867 &attrib[0], VAConfigAttribTypeMax);
868 CHECK_VASTATUS(va_status, "vaGetConfigAttributes");
869 /* check the interested configattrib */
870 if ((attrib[VAConfigAttribRTFormat].value & VA_RT_FORMAT_YUV420) == 0) {
871 printf("Not find desired YUV420 RT format\n");
874 config_attrib[config_attrib_num].type = VAConfigAttribRTFormat;
875 config_attrib[config_attrib_num].value = VA_RT_FORMAT_YUV420;
879 if (attrib[VAConfigAttribRateControl].value != VA_ATTRIB_NOT_SUPPORTED) {
880 int tmp = attrib[VAConfigAttribRateControl].value;
882 if (rc_mode == -1 || !(rc_mode & tmp)) {
884 printf("Warning: Don't support the specified RateControl mode: %s!!!, switch to ", rc_to_string(rc_mode));
887 for (i = 0; i < sizeof(rc_default_modes) / sizeof(rc_default_modes[0]); i++) {
888 if (rc_default_modes[i] & tmp) {
889 rc_mode = rc_default_modes[i];
895 config_attrib[config_attrib_num].type = VAConfigAttribRateControl;
896 config_attrib[config_attrib_num].value = rc_mode;
901 if (attrib[VAConfigAttribEncPackedHeaders].value != VA_ATTRIB_NOT_SUPPORTED) {
902 int tmp = attrib[VAConfigAttribEncPackedHeaders].value;
904 h264_packedheader = 1;
905 config_attrib[config_attrib_num].type = VAConfigAttribEncPackedHeaders;
906 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
908 if (tmp & VA_ENC_PACKED_HEADER_SEQUENCE) {
909 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SEQUENCE;
912 if (tmp & VA_ENC_PACKED_HEADER_PICTURE) {
913 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_PICTURE;
916 if (tmp & VA_ENC_PACKED_HEADER_SLICE) {
917 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SLICE;
920 if (tmp & VA_ENC_PACKED_HEADER_MISC) {
921 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_MISC;
924 enc_packed_header_idx = config_attrib_num;
928 if (attrib[VAConfigAttribEncInterlaced].value != VA_ATTRIB_NOT_SUPPORTED) {
929 config_attrib[config_attrib_num].type = VAConfigAttribEncInterlaced;
930 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
934 if (attrib[VAConfigAttribEncMaxRefFrames].value != VA_ATTRIB_NOT_SUPPORTED) {
935 h264_maxref = attrib[VAConfigAttribEncMaxRefFrames].value;
942 int QuickSyncEncoderImpl::setup_encode()
944 if (!global_flags.x264_video_to_disk) {
946 VASurfaceID *tmp_surfaceid;
948 VASurfaceID src_surface[SURFACE_NUM];
949 VASurfaceID ref_surface[SURFACE_NUM];
951 va_status = vaCreateConfig(va_dpy, h264_profile, VAEntrypointEncSlice,
952 &config_attrib[0], config_attrib_num, &config_id);
953 CHECK_VASTATUS(va_status, "vaCreateConfig");
955 /* create source surfaces */
956 va_status = vaCreateSurfaces(va_dpy,
957 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
958 &src_surface[0], SURFACE_NUM,
960 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
962 /* create reference surfaces */
963 va_status = vaCreateSurfaces(va_dpy,
964 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
965 &ref_surface[0], SURFACE_NUM,
967 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
969 tmp_surfaceid = (VASurfaceID *)calloc(2 * SURFACE_NUM, sizeof(VASurfaceID));
970 memcpy(tmp_surfaceid, src_surface, SURFACE_NUM * sizeof(VASurfaceID));
971 memcpy(tmp_surfaceid + SURFACE_NUM, ref_surface, SURFACE_NUM * sizeof(VASurfaceID));
973 for (int i = 0; i < SURFACE_NUM; i++) {
974 gl_surfaces[i].src_surface = src_surface[i];
975 gl_surfaces[i].ref_surface = ref_surface[i];
978 /* Create a context for this encode pipe */
979 va_status = vaCreateContext(va_dpy, config_id,
980 frame_width_mbaligned, frame_height_mbaligned,
982 tmp_surfaceid, 2 * SURFACE_NUM,
984 CHECK_VASTATUS(va_status, "vaCreateContext");
987 codedbuf_size = (frame_width_mbaligned * frame_height_mbaligned * 400) / (16*16);
989 for (int i = 0; i < SURFACE_NUM; i++) {
990 /* create coded buffer once for all
991 * other VA buffers which won't be used again after vaRenderPicture.
992 * so APP can always vaCreateBuffer for every frame
993 * but coded buffer need to be mapped and accessed after vaRenderPicture/vaEndPicture
994 * so VA won't maintain the coded buffer
996 va_status = vaCreateBuffer(va_dpy, context_id, VAEncCodedBufferType,
997 codedbuf_size, 1, NULL, &gl_surfaces[i].coded_buf);
998 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1002 /* create OpenGL objects */
1003 for (int i = 0; i < SURFACE_NUM; i++) {
1005 gl_surfaces[i].y_tex = resource_pool->create_2d_texture(GL_R8, 1, 1);
1006 gl_surfaces[i].cbcr_tex = resource_pool->create_2d_texture(GL_RG8, 1, 1);
1008 size_t bytes_per_pixel = (global_flags.x264_bit_depth > 8) ? 2 : 1;
1010 // Generate a PBO to read into. It doesn't necessarily fit 1:1 with the VA-API
1011 // buffers, due to potentially differing pitch.
1012 glGenBuffers(1, &gl_surfaces[i].pbo);
1013 glBindBuffer(GL_PIXEL_PACK_BUFFER, gl_surfaces[i].pbo);
1014 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);
1015 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);
1016 gl_surfaces[i].y_offset = 0;
1017 gl_surfaces[i].cbcr_offset = frame_width * frame_height * bytes_per_pixel;
1018 gl_surfaces[i].y_ptr = ptr + gl_surfaces[i].y_offset;
1019 gl_surfaces[i].cbcr_ptr = ptr + gl_surfaces[i].cbcr_offset;
1020 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1027 // Given a list like 1 9 3 0 2 8 4 and a pivot element 3, will produce
1030 template<class T, class C>
1031 static void sort_two(T *begin, T *end, const T &pivot, const C &less_than)
1033 T *middle = partition(begin, end, [&](const T &elem) { return less_than(elem, pivot); });
1034 sort(begin, middle, [&](const T &a, const T &b) { return less_than(b, a); });
1035 sort(middle, end, less_than);
1038 void QuickSyncEncoderImpl::update_ReferenceFrames(int current_display_frame, int frame_type)
1040 if (frame_type == FRAME_B)
1043 pic_param.CurrPic.frame_idx = current_ref_frame_num;
1045 CurrentCurrPic.flags = VA_PICTURE_H264_SHORT_TERM_REFERENCE;
1046 unique_lock<mutex> lock(storage_task_queue_mutex);
1048 // Insert the new frame at the start of the reference queue.
1049 reference_frames.push_front(ReferenceFrame{ CurrentCurrPic, current_display_frame });
1051 if (reference_frames.size() > num_ref_frames)
1053 // The back frame frame is no longer in use as a reference.
1054 int display_frame_num = reference_frames.back().display_number;
1055 assert(surface_for_frame.count(display_frame_num));
1056 release_gl_surface(display_frame_num);
1057 reference_frames.pop_back();
1060 // Mark this frame in use as a reference.
1061 assert(surface_for_frame.count(current_display_frame));
1062 ++surface_for_frame[current_display_frame]->refcount;
1064 current_ref_frame_num++;
1065 if (current_ref_frame_num > MaxFrameNum)
1066 current_ref_frame_num = 0;
1070 void QuickSyncEncoderImpl::update_RefPicList_P(VAPictureH264 RefPicList0_P[MAX_NUM_REF2])
1072 const auto descending_by_frame_idx = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1073 return a.frame_idx > b.frame_idx;
1076 for (size_t i = 0; i < reference_frames.size(); ++i) {
1077 RefPicList0_P[i] = reference_frames[i].pic;
1079 sort(&RefPicList0_P[0], &RefPicList0_P[reference_frames.size()], descending_by_frame_idx);
1082 void QuickSyncEncoderImpl::update_RefPicList_B(VAPictureH264 RefPicList0_B[MAX_NUM_REF2], VAPictureH264 RefPicList1_B[MAX_NUM_REF2])
1084 const auto ascending_by_top_field_order_cnt = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1085 return a.TopFieldOrderCnt < b.TopFieldOrderCnt;
1087 const auto descending_by_top_field_order_cnt = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1088 return a.TopFieldOrderCnt > b.TopFieldOrderCnt;
1091 for (size_t i = 0; i < reference_frames.size(); ++i) {
1092 RefPicList0_B[i] = reference_frames[i].pic;
1093 RefPicList1_B[i] = reference_frames[i].pic;
1095 sort_two(&RefPicList0_B[0], &RefPicList0_B[reference_frames.size()], CurrentCurrPic, ascending_by_top_field_order_cnt);
1096 sort_two(&RefPicList1_B[0], &RefPicList1_B[reference_frames.size()], CurrentCurrPic, descending_by_top_field_order_cnt);
1100 int QuickSyncEncoderImpl::render_sequence()
1102 VABufferID seq_param_buf, rc_param_buf, render_id[2];
1104 VAEncMiscParameterBuffer *misc_param;
1105 VAEncMiscParameterRateControl *misc_rate_ctrl;
1107 seq_param.level_idc = 41 /*SH_LEVEL_3*/;
1108 seq_param.picture_width_in_mbs = frame_width_mbaligned / 16;
1109 seq_param.picture_height_in_mbs = frame_height_mbaligned / 16;
1110 seq_param.bits_per_second = frame_bitrate;
1112 seq_param.intra_period = intra_period;
1113 seq_param.intra_idr_period = intra_idr_period;
1114 seq_param.ip_period = ip_period;
1116 seq_param.max_num_ref_frames = num_ref_frames;
1117 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1118 seq_param.time_scale = TIMEBASE * 2;
1119 seq_param.num_units_in_tick = 1; /* Tc = num_units_in_tick / scale */
1120 seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 = Log2MaxPicOrderCntLsb - 4;
1121 seq_param.seq_fields.bits.log2_max_frame_num_minus4 = Log2MaxFrameNum - 4;;
1122 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1123 seq_param.seq_fields.bits.chroma_format_idc = 1;
1124 seq_param.seq_fields.bits.direct_8x8_inference_flag = 1;
1126 if (frame_width != frame_width_mbaligned ||
1127 frame_height != frame_height_mbaligned) {
1128 seq_param.frame_cropping_flag = 1;
1129 seq_param.frame_crop_left_offset = 0;
1130 seq_param.frame_crop_right_offset = (frame_width_mbaligned - frame_width)/2;
1131 seq_param.frame_crop_top_offset = 0;
1132 seq_param.frame_crop_bottom_offset = (frame_height_mbaligned - frame_height)/2;
1135 va_status = vaCreateBuffer(va_dpy, context_id,
1136 VAEncSequenceParameterBufferType,
1137 sizeof(seq_param), 1, &seq_param, &seq_param_buf);
1138 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1140 va_status = vaCreateBuffer(va_dpy, context_id,
1141 VAEncMiscParameterBufferType,
1142 sizeof(VAEncMiscParameterBuffer) + sizeof(VAEncMiscParameterRateControl),
1143 1, NULL, &rc_param_buf);
1144 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1146 vaMapBuffer(va_dpy, rc_param_buf, (void **)&misc_param);
1147 misc_param->type = VAEncMiscParameterTypeRateControl;
1148 misc_rate_ctrl = (VAEncMiscParameterRateControl *)misc_param->data;
1149 memset(misc_rate_ctrl, 0, sizeof(*misc_rate_ctrl));
1150 misc_rate_ctrl->bits_per_second = frame_bitrate;
1151 misc_rate_ctrl->target_percentage = 66;
1152 misc_rate_ctrl->window_size = 1000;
1153 misc_rate_ctrl->initial_qp = initial_qp;
1154 misc_rate_ctrl->min_qp = minimal_qp;
1155 misc_rate_ctrl->basic_unit_size = 0;
1156 vaUnmapBuffer(va_dpy, rc_param_buf);
1158 render_id[0] = seq_param_buf;
1159 render_id[1] = rc_param_buf;
1161 render_picture_and_delete(va_dpy, context_id, &render_id[0], 2);
1166 static int calc_poc(int pic_order_cnt_lsb, int frame_type)
1168 static int PicOrderCntMsb_ref = 0, pic_order_cnt_lsb_ref = 0;
1169 int prevPicOrderCntMsb, prevPicOrderCntLsb;
1170 int PicOrderCntMsb, TopFieldOrderCnt;
1172 if (frame_type == FRAME_IDR)
1173 prevPicOrderCntMsb = prevPicOrderCntLsb = 0;
1175 prevPicOrderCntMsb = PicOrderCntMsb_ref;
1176 prevPicOrderCntLsb = pic_order_cnt_lsb_ref;
1179 if ((pic_order_cnt_lsb < prevPicOrderCntLsb) &&
1180 ((prevPicOrderCntLsb - pic_order_cnt_lsb) >= (int)(MaxPicOrderCntLsb / 2)))
1181 PicOrderCntMsb = prevPicOrderCntMsb + MaxPicOrderCntLsb;
1182 else if ((pic_order_cnt_lsb > prevPicOrderCntLsb) &&
1183 ((pic_order_cnt_lsb - prevPicOrderCntLsb) > (int)(MaxPicOrderCntLsb / 2)))
1184 PicOrderCntMsb = prevPicOrderCntMsb - MaxPicOrderCntLsb;
1186 PicOrderCntMsb = prevPicOrderCntMsb;
1188 TopFieldOrderCnt = PicOrderCntMsb + pic_order_cnt_lsb;
1190 if (frame_type != FRAME_B) {
1191 PicOrderCntMsb_ref = PicOrderCntMsb;
1192 pic_order_cnt_lsb_ref = pic_order_cnt_lsb;
1195 return TopFieldOrderCnt;
1198 int QuickSyncEncoderImpl::render_picture(GLSurface *surf, int frame_type, int display_frame_num, int gop_start_display_frame_num)
1200 VABufferID pic_param_buf;
1204 pic_param.CurrPic.picture_id = surf->ref_surface;
1205 pic_param.CurrPic.frame_idx = current_ref_frame_num;
1206 pic_param.CurrPic.flags = 0;
1207 pic_param.CurrPic.TopFieldOrderCnt = calc_poc((display_frame_num - gop_start_display_frame_num) % MaxPicOrderCntLsb, frame_type);
1208 pic_param.CurrPic.BottomFieldOrderCnt = pic_param.CurrPic.TopFieldOrderCnt;
1209 CurrentCurrPic = pic_param.CurrPic;
1211 for (i = 0; i < reference_frames.size(); i++) {
1212 pic_param.ReferenceFrames[i] = reference_frames[i].pic;
1214 for (i = reference_frames.size(); i < MAX_NUM_REF1; i++) {
1215 pic_param.ReferenceFrames[i].picture_id = VA_INVALID_SURFACE;
1216 pic_param.ReferenceFrames[i].flags = VA_PICTURE_H264_INVALID;
1219 pic_param.pic_fields.bits.idr_pic_flag = (frame_type == FRAME_IDR);
1220 pic_param.pic_fields.bits.reference_pic_flag = (frame_type != FRAME_B);
1221 pic_param.pic_fields.bits.entropy_coding_mode_flag = h264_entropy_mode;
1222 pic_param.pic_fields.bits.deblocking_filter_control_present_flag = 1;
1223 pic_param.frame_num = current_ref_frame_num; // FIXME: is this correct?
1224 pic_param.coded_buf = surf->coded_buf;
1225 pic_param.last_picture = false; // FIXME
1226 pic_param.pic_init_qp = initial_qp;
1228 va_status = vaCreateBuffer(va_dpy, context_id, VAEncPictureParameterBufferType,
1229 sizeof(pic_param), 1, &pic_param, &pic_param_buf);
1230 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1232 render_picture_and_delete(va_dpy, context_id, &pic_param_buf, 1);
1237 int QuickSyncEncoderImpl::render_packedsequence(YCbCrLumaCoefficients ycbcr_coefficients)
1239 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1240 VABufferID packedseq_para_bufid, packedseq_data_bufid, render_id[2];
1241 unsigned int length_in_bits;
1242 unsigned char *packedseq_buffer = NULL;
1245 length_in_bits = build_packed_seq_buffer(ycbcr_coefficients, &packedseq_buffer);
1247 packedheader_param_buffer.type = VAEncPackedHeaderSequence;
1249 packedheader_param_buffer.bit_length = length_in_bits; /*length_in_bits*/
1250 packedheader_param_buffer.has_emulation_bytes = 0;
1251 va_status = vaCreateBuffer(va_dpy,
1253 VAEncPackedHeaderParameterBufferType,
1254 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1255 &packedseq_para_bufid);
1256 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1258 va_status = vaCreateBuffer(va_dpy,
1260 VAEncPackedHeaderDataBufferType,
1261 (length_in_bits + 7) / 8, 1, packedseq_buffer,
1262 &packedseq_data_bufid);
1263 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1265 render_id[0] = packedseq_para_bufid;
1266 render_id[1] = packedseq_data_bufid;
1267 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1269 free(packedseq_buffer);
1275 int QuickSyncEncoderImpl::render_packedpicture()
1277 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1278 VABufferID packedpic_para_bufid, packedpic_data_bufid, render_id[2];
1279 unsigned int length_in_bits;
1280 unsigned char *packedpic_buffer = NULL;
1283 length_in_bits = build_packed_pic_buffer(&packedpic_buffer);
1284 packedheader_param_buffer.type = VAEncPackedHeaderPicture;
1285 packedheader_param_buffer.bit_length = length_in_bits;
1286 packedheader_param_buffer.has_emulation_bytes = 0;
1288 va_status = vaCreateBuffer(va_dpy,
1290 VAEncPackedHeaderParameterBufferType,
1291 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1292 &packedpic_para_bufid);
1293 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1295 va_status = vaCreateBuffer(va_dpy,
1297 VAEncPackedHeaderDataBufferType,
1298 (length_in_bits + 7) / 8, 1, packedpic_buffer,
1299 &packedpic_data_bufid);
1300 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1302 render_id[0] = packedpic_para_bufid;
1303 render_id[1] = packedpic_data_bufid;
1304 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1306 free(packedpic_buffer);
1311 void QuickSyncEncoderImpl::render_packedslice()
1313 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1314 VABufferID packedslice_para_bufid, packedslice_data_bufid, render_id[2];
1315 unsigned int length_in_bits;
1316 unsigned char *packedslice_buffer = NULL;
1319 length_in_bits = build_packed_slice_buffer(&packedslice_buffer);
1320 packedheader_param_buffer.type = VAEncPackedHeaderSlice;
1321 packedheader_param_buffer.bit_length = length_in_bits;
1322 packedheader_param_buffer.has_emulation_bytes = 0;
1324 va_status = vaCreateBuffer(va_dpy,
1326 VAEncPackedHeaderParameterBufferType,
1327 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1328 &packedslice_para_bufid);
1329 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1331 va_status = vaCreateBuffer(va_dpy,
1333 VAEncPackedHeaderDataBufferType,
1334 (length_in_bits + 7) / 8, 1, packedslice_buffer,
1335 &packedslice_data_bufid);
1336 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1338 render_id[0] = packedslice_para_bufid;
1339 render_id[1] = packedslice_data_bufid;
1340 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1342 free(packedslice_buffer);
1345 int QuickSyncEncoderImpl::render_slice(int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num, int frame_type)
1347 VABufferID slice_param_buf;
1351 /* one frame, one slice */
1352 slice_param.macroblock_address = 0;
1353 slice_param.num_macroblocks = frame_width_mbaligned * frame_height_mbaligned/(16*16); /* Measured by MB */
1354 slice_param.slice_type = (frame_type == FRAME_IDR)?2:frame_type;
1355 if (frame_type == FRAME_IDR) {
1356 if (encoding_frame_num != 0)
1357 ++slice_param.idr_pic_id;
1358 } else if (frame_type == FRAME_P) {
1359 VAPictureH264 RefPicList0_P[MAX_NUM_REF2];
1360 update_RefPicList_P(RefPicList0_P);
1362 int refpiclist0_max = h264_maxref & 0xffff;
1363 memcpy(slice_param.RefPicList0, RefPicList0_P, refpiclist0_max*sizeof(VAPictureH264));
1365 for (i = refpiclist0_max; i < MAX_NUM_REF2; i++) {
1366 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1367 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1369 } else if (frame_type == FRAME_B) {
1370 VAPictureH264 RefPicList0_B[MAX_NUM_REF2], RefPicList1_B[MAX_NUM_REF2];
1371 update_RefPicList_B(RefPicList0_B, RefPicList1_B);
1373 int refpiclist0_max = h264_maxref & 0xffff;
1374 int refpiclist1_max = (h264_maxref >> 16) & 0xffff;
1376 memcpy(slice_param.RefPicList0, RefPicList0_B, refpiclist0_max*sizeof(VAPictureH264));
1377 for (i = refpiclist0_max; i < MAX_NUM_REF2; i++) {
1378 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1379 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1382 memcpy(slice_param.RefPicList1, RefPicList1_B, refpiclist1_max*sizeof(VAPictureH264));
1383 for (i = refpiclist1_max; i < MAX_NUM_REF2; i++) {
1384 slice_param.RefPicList1[i].picture_id = VA_INVALID_SURFACE;
1385 slice_param.RefPicList1[i].flags = VA_PICTURE_H264_INVALID;
1389 slice_param.slice_alpha_c0_offset_div2 = 0;
1390 slice_param.slice_beta_offset_div2 = 0;
1391 slice_param.direct_spatial_mv_pred_flag = 1;
1392 slice_param.pic_order_cnt_lsb = (display_frame_num - gop_start_display_frame_num) % MaxPicOrderCntLsb;
1395 if (h264_packedheader &&
1396 config_attrib[enc_packed_header_idx].value & VA_ENC_PACKED_HEADER_SLICE)
1397 render_packedslice();
1399 va_status = vaCreateBuffer(va_dpy, context_id, VAEncSliceParameterBufferType,
1400 sizeof(slice_param), 1, &slice_param, &slice_param_buf);
1401 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1403 render_picture_and_delete(va_dpy, context_id, &slice_param_buf, 1);
1410 void QuickSyncEncoderImpl::save_codeddata(GLSurface *surf, storage_task task)
1412 VACodedBufferSegment *buf_list = NULL;
1417 va_status = vaMapBuffer(va_dpy, surf->coded_buf, (void **)(&buf_list));
1418 CHECK_VASTATUS(va_status, "vaMapBuffer");
1419 while (buf_list != NULL) {
1420 data.append(reinterpret_cast<const char *>(buf_list->buf), buf_list->size);
1421 buf_list = (VACodedBufferSegment *) buf_list->next;
1423 vaUnmapBuffer(va_dpy, surf->coded_buf);
1425 static int frameno = 0;
1426 print_latency("Current Quick Sync latency (video inputs → disk mux):",
1427 task.received_ts, (task.frame_type == FRAME_B), &frameno, &qs_latency_histogram);
1432 memset(&pkt, 0, sizeof(pkt));
1434 pkt.data = reinterpret_cast<uint8_t *>(&data[0]);
1435 pkt.size = data.size();
1436 pkt.stream_index = 0;
1437 if (task.frame_type == FRAME_IDR) {
1438 pkt.flags = AV_PKT_FLAG_KEY;
1442 pkt.duration = task.duration;
1444 file_mux->add_packet(pkt, task.pts + global_delay(), task.dts + global_delay());
1446 if (!global_flags.uncompressed_video_to_http &&
1447 !global_flags.x264_video_to_http) {
1448 stream_mux->add_packet(pkt, task.pts + global_delay(), task.dts + global_delay());
1454 // this is weird. but it seems to put a new frame onto the queue
1455 void QuickSyncEncoderImpl::storage_task_enqueue(storage_task task)
1457 unique_lock<mutex> lock(storage_task_queue_mutex);
1458 storage_task_queue.push(move(task));
1459 storage_task_queue_changed.notify_all();
1462 void QuickSyncEncoderImpl::storage_task_thread()
1464 pthread_setname_np(pthread_self(), "QS_Storage");
1466 storage_task current;
1469 // wait until there's an encoded frame
1470 unique_lock<mutex> lock(storage_task_queue_mutex);
1471 storage_task_queue_changed.wait(lock, [this]{ return storage_thread_should_quit || !storage_task_queue.empty(); });
1472 if (storage_thread_should_quit && storage_task_queue.empty()) return;
1473 current = move(storage_task_queue.front());
1474 storage_task_queue.pop();
1475 surf = surface_for_frame[current.display_order];
1476 assert(surf != nullptr);
1481 size_t display_order = current.display_order;
1482 vector<size_t> ref_display_frame_numbers = move(current.ref_display_frame_numbers);
1484 // waits for data, then saves it to disk.
1485 va_status = vaSyncSurface(va_dpy, surf->src_surface);
1486 CHECK_VASTATUS(va_status, "vaSyncSurface");
1487 save_codeddata(surf, move(current));
1489 // Unlock the frame, and all its references.
1491 unique_lock<mutex> lock(storage_task_queue_mutex);
1492 release_gl_surface(display_order);
1494 for (size_t frame_num : ref_display_frame_numbers) {
1495 release_gl_surface(frame_num);
1501 void QuickSyncEncoderImpl::release_encode()
1503 for (unsigned i = 0; i < SURFACE_NUM; i++) {
1504 vaDestroyBuffer(va_dpy, gl_surfaces[i].coded_buf);
1505 vaDestroySurfaces(va_dpy, &gl_surfaces[i].src_surface, 1);
1506 vaDestroySurfaces(va_dpy, &gl_surfaces[i].ref_surface, 1);
1509 vaDestroyContext(va_dpy, context_id);
1510 vaDestroyConfig(va_dpy, config_id);
1513 void QuickSyncEncoderImpl::release_gl_resources()
1515 assert(is_shutdown);
1516 if (has_released_gl_resources) {
1520 for (unsigned i = 0; i < SURFACE_NUM; i++) {
1522 resource_pool->release_2d_texture(gl_surfaces[i].y_tex);
1523 resource_pool->release_2d_texture(gl_surfaces[i].cbcr_tex);
1525 glBindBuffer(GL_PIXEL_PACK_BUFFER, gl_surfaces[i].pbo);
1526 glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
1527 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1528 glDeleteBuffers(1, &gl_surfaces[i].pbo);
1532 has_released_gl_resources = true;
1535 int QuickSyncEncoderImpl::deinit_va()
1537 vaTerminate(va_dpy);
1539 va_close_display(va_dpy);
1544 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)
1545 : 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)
1547 file_audio_encoder.reset(new AudioEncoder(AUDIO_OUTPUT_CODEC_NAME, DEFAULT_AUDIO_OUTPUT_BIT_RATE, oformat));
1548 open_output_file(filename);
1549 file_audio_encoder->add_mux(file_mux.get());
1551 frame_width_mbaligned = (frame_width + 15) & (~15);
1552 frame_height_mbaligned = (frame_height + 15) & (~15);
1556 if (global_flags.x264_video_to_http || global_flags.x264_video_to_disk) {
1557 assert(x264_encoder != nullptr);
1559 assert(x264_encoder == nullptr);
1562 enable_zerocopy_if_possible();
1563 if (!global_flags.x264_video_to_disk) {
1564 init_va(va_display);
1568 if (!global_flags.x264_video_to_disk) {
1569 memset(&seq_param, 0, sizeof(seq_param));
1570 memset(&pic_param, 0, sizeof(pic_param));
1571 memset(&slice_param, 0, sizeof(slice_param));
1574 if (!mux_metrics_inited) {
1575 mixer_latency_histogram.init("mixer");
1576 qs_latency_histogram.init("quick_sync");
1577 current_file_mux_metrics.init({{ "destination", "current_file" }});
1578 total_mux_metrics.init({{ "destination", "files_total" }});
1579 mux_metrics_inited = true;
1582 storage_thread = thread(&QuickSyncEncoderImpl::storage_task_thread, this);
1584 encode_thread = thread([this]{
1585 QOpenGLContext *context = create_context(this->surface);
1586 eglBindAPI(EGL_OPENGL_API);
1587 if (!make_current(context, this->surface)) {
1588 printf("display=%p surface=%p context=%p curr=%p err=%d\n", eglGetCurrentDisplay(), this->surface, context, eglGetCurrentContext(),
1592 encode_thread_func();
1593 delete_context(context);
1597 QuickSyncEncoderImpl::~QuickSyncEncoderImpl()
1600 release_gl_resources();
1603 QuickSyncEncoderImpl::GLSurface *QuickSyncEncoderImpl::allocate_gl_surface()
1605 for (unsigned i = 0; i < SURFACE_NUM; ++i) {
1606 if (gl_surfaces[i].refcount == 0) {
1607 ++gl_surfaces[i].refcount;
1608 return &gl_surfaces[i];
1614 void QuickSyncEncoderImpl::release_gl_surface(size_t display_frame_num)
1616 assert(surface_for_frame.count(display_frame_num));
1617 QuickSyncEncoderImpl::GLSurface *surf = surface_for_frame[display_frame_num];
1618 if (--surf->refcount == 0) {
1619 assert(surface_for_frame.count(display_frame_num));
1620 surface_for_frame.erase(display_frame_num);
1621 storage_task_queue_changed.notify_all();
1625 bool QuickSyncEncoderImpl::is_zerocopy() const
1627 return use_zerocopy;
1630 bool QuickSyncEncoderImpl::begin_frame(int64_t pts, int64_t duration, YCbCrLumaCoefficients ycbcr_coefficients, const vector<RefCountedFrame> &input_frames, GLuint *y_tex, GLuint *cbcr_tex)
1632 assert(!is_shutdown);
1633 GLSurface *surf = nullptr;
1635 // Wait until this frame slot is done encoding.
1636 unique_lock<mutex> lock(storage_task_queue_mutex);
1637 surf = allocate_gl_surface();
1638 if (surf == nullptr) {
1639 fprintf(stderr, "Warning: No free slots for frame %d, rendering has to wait for H.264 encoder\n",
1640 current_storage_frame);
1641 storage_task_queue_changed.wait(lock, [this, &surf]{
1642 if (storage_thread_should_quit)
1644 surf = allocate_gl_surface();
1645 return surf != nullptr;
1648 if (storage_thread_should_quit) return false;
1649 assert(surf != nullptr);
1650 surface_for_frame[current_storage_frame] = surf;
1654 *y_tex = surf->y_tex;
1655 *cbcr_tex = surf->cbcr_tex;
1657 surf->y_tex = *y_tex;
1658 surf->cbcr_tex = *cbcr_tex;
1661 if (!global_flags.x264_video_to_disk) {
1662 VAStatus va_status = vaDeriveImage(va_dpy, surf->src_surface, &surf->surface_image);
1663 CHECK_VASTATUS(va_status, "vaDeriveImage");
1666 VABufferInfo buf_info;
1667 buf_info.mem_type = VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME; // or VA_SURFACE_ATTRIB_MEM_TYPE_KERNEL_DRM?
1668 va_status = vaAcquireBufferHandle(va_dpy, surf->surface_image.buf, &buf_info);
1669 CHECK_VASTATUS(va_status, "vaAcquireBufferHandle");
1672 surf->y_egl_image = EGL_NO_IMAGE_KHR;
1673 EGLint y_attribs[] = {
1674 EGL_WIDTH, frame_width,
1675 EGL_HEIGHT, frame_height,
1676 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('R', '8', ' ', ' '),
1677 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
1678 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[0]),
1679 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[0]),
1683 surf->y_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, y_attribs);
1684 assert(surf->y_egl_image != EGL_NO_IMAGE_KHR);
1686 // Associate Y image to a texture.
1687 glBindTexture(GL_TEXTURE_2D, *y_tex);
1688 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->y_egl_image);
1690 // Create CbCr image.
1691 surf->cbcr_egl_image = EGL_NO_IMAGE_KHR;
1692 EGLint cbcr_attribs[] = {
1693 EGL_WIDTH, frame_width,
1694 EGL_HEIGHT, frame_height,
1695 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('G', 'R', '8', '8'),
1696 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
1697 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[1]),
1698 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[1]),
1702 surf->cbcr_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, cbcr_attribs);
1703 assert(surf->cbcr_egl_image != EGL_NO_IMAGE_KHR);
1705 // Associate CbCr image to a texture.
1706 glBindTexture(GL_TEXTURE_2D, *cbcr_tex);
1707 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->cbcr_egl_image);
1711 current_video_frame = PendingFrame{ {}, input_frames, pts, duration, ycbcr_coefficients };
1716 void QuickSyncEncoderImpl::add_audio(int64_t pts, vector<float> audio)
1718 assert(!is_shutdown);
1719 file_audio_encoder->encode_audio(audio, pts + global_delay());
1722 RefCountedGLsync QuickSyncEncoderImpl::end_frame()
1724 assert(!is_shutdown);
1726 if (!use_zerocopy) {
1727 GLenum type = global_flags.x264_bit_depth > 8 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_BYTE;
1730 unique_lock<mutex> lock(storage_task_queue_mutex);
1731 surf = surface_for_frame[current_storage_frame];
1732 assert(surf != nullptr);
1735 glPixelStorei(GL_PACK_ROW_LENGTH, 0);
1738 glBindBuffer(GL_PIXEL_PACK_BUFFER, surf->pbo);
1741 glBindTexture(GL_TEXTURE_2D, surf->y_tex);
1743 glGetTexImage(GL_TEXTURE_2D, 0, GL_RED, type, BUFFER_OFFSET(surf->y_offset));
1746 glBindTexture(GL_TEXTURE_2D, surf->cbcr_tex);
1748 glGetTexImage(GL_TEXTURE_2D, 0, GL_RG, type, BUFFER_OFFSET(surf->cbcr_offset));
1751 // We don't own these; the caller does.
1752 surf->y_tex = surf->cbcr_tex = 0;
1754 glBindTexture(GL_TEXTURE_2D, 0);
1756 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1759 glMemoryBarrier(GL_TEXTURE_UPDATE_BARRIER_BIT | GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT);
1763 RefCountedGLsync fence = RefCountedGLsync(GL_SYNC_GPU_COMMANDS_COMPLETE, /*flags=*/0);
1765 glFlush(); // Make the H.264 thread see the fence as soon as possible.
1769 unique_lock<mutex> lock(frame_queue_mutex);
1770 current_video_frame.fence = fence;
1771 pending_video_frames.push(move(current_video_frame));
1772 ++current_storage_frame;
1774 frame_queue_nonempty.notify_all();
1778 void QuickSyncEncoderImpl::shutdown()
1785 unique_lock<mutex> lock(frame_queue_mutex);
1786 encode_thread_should_quit = true;
1787 frame_queue_nonempty.notify_all();
1789 encode_thread.join();
1791 unique_lock<mutex> lock(storage_task_queue_mutex);
1792 storage_thread_should_quit = true;
1793 frame_queue_nonempty.notify_all();
1794 storage_task_queue_changed.notify_all();
1796 storage_thread.join();
1798 // Encode any leftover audio in the queues, and also any delayed frames.
1799 file_audio_encoder->encode_last_audio();
1801 if (!global_flags.x264_video_to_disk) {
1808 void QuickSyncEncoderImpl::close_file()
1813 void QuickSyncEncoderImpl::open_output_file(const std::string &filename)
1815 AVFormatContext *avctx = avformat_alloc_context();
1816 avctx->oformat = av_guess_format(NULL, filename.c_str(), NULL);
1817 assert(filename.size() < sizeof(avctx->filename) - 1);
1818 strcpy(avctx->filename, filename.c_str());
1820 string url = "file:" + filename;
1821 int ret = avio_open2(&avctx->pb, url.c_str(), AVIO_FLAG_WRITE, &avctx->interrupt_callback, NULL);
1823 char tmp[AV_ERROR_MAX_STRING_SIZE];
1824 fprintf(stderr, "%s: avio_open2() failed: %s\n", filename.c_str(), av_make_error_string(tmp, sizeof(tmp), ret));
1828 string video_extradata; // FIXME: See other comment about global headers.
1829 if (global_flags.x264_video_to_disk) {
1830 video_extradata = x264_encoder->get_global_headers();
1833 current_file_mux_metrics.reset();
1835 AVCodecParametersWithDeleter audio_codecpar = file_audio_encoder->get_codec_parameters();
1836 file_mux.reset(new Mux(avctx, frame_width, frame_height, Mux::CODEC_H264, video_extradata, audio_codecpar.get(), TIMEBASE,
1837 std::bind(&DiskSpaceEstimator::report_write, disk_space_estimator, filename, _1),
1838 { ¤t_file_mux_metrics, &total_mux_metrics }));
1840 if (global_flags.x264_video_to_disk) {
1841 x264_encoder->add_mux(file_mux.get());
1845 void QuickSyncEncoderImpl::encode_thread_func()
1847 pthread_setname_np(pthread_self(), "QS_Encode");
1849 int64_t last_dts = -1;
1850 int gop_start_display_frame_num = 0;
1851 for (int display_frame_num = 0; ; ++display_frame_num) {
1852 // Wait for the frame to be in the queue. Note that this only means
1853 // we started rendering it.
1856 unique_lock<mutex> lock(frame_queue_mutex);
1857 frame_queue_nonempty.wait(lock, [this]{
1858 return encode_thread_should_quit || !pending_video_frames.empty();
1860 if (encode_thread_should_quit && pending_video_frames.empty()) {
1861 // We may have queued frames left in the reorder buffer
1862 // that were supposed to be B-frames, but have no P-frame
1863 // to be encoded against. If so, encode them all as
1864 // P-frames instead. Note that this happens under the mutex,
1865 // but nobody else uses it at this point, since we're shutting down,
1866 // so there's no contention.
1867 encode_remaining_frames_as_p(quicksync_encoding_frame_num, gop_start_display_frame_num, last_dts);
1870 frame = move(pending_video_frames.front());
1871 pending_video_frames.pop();
1875 // Pass the frame on to x264 (or uncompressed to HTTP) as needed.
1876 // Note that this implicitly waits for the frame to be done rendering.
1877 pass_frame(frame, display_frame_num, frame.pts, frame.duration);
1879 if (global_flags.x264_video_to_disk) {
1880 unique_lock<mutex> lock(storage_task_queue_mutex);
1881 release_gl_surface(display_frame_num);
1885 reorder_buffer[display_frame_num] = move(frame);
1887 // Now encode as many QuickSync frames as we can using the frames we have available.
1888 // (It could be zero, or it could be multiple.) FIXME: make a function.
1891 int frame_type, quicksync_display_frame_num;
1892 encoding2display_order(quicksync_encoding_frame_num, intra_period, intra_idr_period, ip_period,
1893 &quicksync_display_frame_num, &frame_type, &pts_lag);
1894 if (!reorder_buffer.count(quicksync_display_frame_num)) {
1897 frame = move(reorder_buffer[quicksync_display_frame_num]);
1898 reorder_buffer.erase(quicksync_display_frame_num);
1900 if (frame_type == FRAME_IDR) {
1901 // Release any reference frames from the previous GOP.
1902 for (const ReferenceFrame &frame : reference_frames) {
1903 release_gl_surface(frame.display_number);
1905 reference_frames.clear();
1906 current_ref_frame_num = 0;
1907 gop_start_display_frame_num = quicksync_display_frame_num;
1910 // Determine the dts of this frame.
1912 if (pts_lag == -1) {
1913 assert(last_dts != -1);
1914 dts = last_dts + (TIMEBASE / MAX_FPS);
1916 dts = frame.pts - pts_lag;
1920 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);
1921 ++quicksync_encoding_frame_num;
1926 void QuickSyncEncoderImpl::encode_remaining_frames_as_p(int encoding_frame_num, int gop_start_display_frame_num, int64_t last_dts)
1928 if (reorder_buffer.empty()) {
1932 for (auto &pending_frame : reorder_buffer) {
1933 int display_frame_num = pending_frame.first;
1934 assert(display_frame_num > 0);
1935 PendingFrame frame = move(pending_frame.second);
1936 int64_t dts = last_dts + (TIMEBASE / MAX_FPS);
1937 printf("Finalizing encode: Encoding leftover frame %d as P-frame instead of B-frame.\n", display_frame_num);
1938 encode_frame(frame, encoding_frame_num++, display_frame_num, gop_start_display_frame_num, FRAME_P, frame.pts, dts, frame.duration, frame.ycbcr_coefficients);
1943 void QuickSyncEncoderImpl::add_packet_for_uncompressed_frame(int64_t pts, int64_t duration, const uint8_t *data)
1946 memset(&pkt, 0, sizeof(pkt));
1948 pkt.data = const_cast<uint8_t *>(data);
1949 pkt.size = frame_width * frame_height * 2;
1950 pkt.stream_index = 0;
1951 pkt.flags = AV_PKT_FLAG_KEY;
1952 pkt.duration = duration;
1953 stream_mux->add_packet(pkt, pts, pts);
1958 void memcpy_with_pitch(uint8_t *dst, const uint8_t *src, size_t src_width, size_t dst_pitch, size_t height)
1960 if (src_width == dst_pitch) {
1961 memcpy(dst, src, src_width * height);
1963 for (size_t y = 0; y < height; ++y) {
1964 const uint8_t *sptr = src + y * src_width;
1965 uint8_t *dptr = dst + y * dst_pitch;
1966 memcpy(dptr, sptr, src_width);
1973 void QuickSyncEncoderImpl::pass_frame(QuickSyncEncoderImpl::PendingFrame frame, int display_frame_num, int64_t pts, int64_t duration)
1975 // Wait for the GPU to be done with the frame.
1978 sync_status = glClientWaitSync(frame.fence.get(), 0, 1000000000);
1980 } while (sync_status == GL_TIMEOUT_EXPIRED);
1981 assert(sync_status != GL_WAIT_FAILED);
1983 ReceivedTimestamps received_ts = find_received_timestamp(frame.input_frames);
1984 static int frameno = 0;
1985 print_latency("Current mixer latency (video inputs → ready for encode):",
1986 received_ts, false, &frameno, &mixer_latency_histogram);
1988 // Release back any input frames we needed to render this frame.
1989 frame.input_frames.clear();
1993 unique_lock<mutex> lock(storage_task_queue_mutex);
1994 surf = surface_for_frame[display_frame_num];
1995 assert(surf != nullptr);
1997 uint8_t *data = reinterpret_cast<uint8_t *>(surf->y_ptr);
1998 if (global_flags.uncompressed_video_to_http) {
1999 add_packet_for_uncompressed_frame(pts, duration, data);
2000 } else if (global_flags.x264_video_to_http || global_flags.x264_video_to_disk) {
2001 x264_encoder->add_frame(pts, duration, frame.ycbcr_coefficients, data, received_ts);
2005 void QuickSyncEncoderImpl::encode_frame(QuickSyncEncoderImpl::PendingFrame frame, int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num,
2006 int frame_type, int64_t pts, int64_t dts, int64_t duration, YCbCrLumaCoefficients ycbcr_coefficients)
2008 const ReceivedTimestamps received_ts = find_received_timestamp(frame.input_frames);
2012 unique_lock<mutex> lock(storage_task_queue_mutex);
2013 surf = surface_for_frame[display_frame_num];
2014 assert(surf != nullptr);
2019 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->y_egl_image);
2020 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->cbcr_egl_image);
2021 va_status = vaReleaseBufferHandle(va_dpy, surf->surface_image.buf);
2022 CHECK_VASTATUS(va_status, "vaReleaseBufferHandle");
2024 // Upload the frame to VA-API.
2025 unsigned char *surface_p = nullptr;
2026 vaMapBuffer(va_dpy, surf->surface_image.buf, (void **)&surface_p);
2028 unsigned char *va_y_ptr = (unsigned char *)surface_p + surf->surface_image.offsets[0];
2029 memcpy_with_pitch(va_y_ptr, surf->y_ptr, frame_width, surf->surface_image.pitches[0], frame_height);
2031 unsigned char *va_cbcr_ptr = (unsigned char *)surface_p + surf->surface_image.offsets[1];
2032 memcpy_with_pitch(va_cbcr_ptr, surf->cbcr_ptr, (frame_width / 2) * sizeof(uint16_t), surf->surface_image.pitches[1], frame_height / 2);
2034 va_status = vaUnmapBuffer(va_dpy, surf->surface_image.buf);
2035 CHECK_VASTATUS(va_status, "vaUnmapBuffer");
2038 va_status = vaDestroyImage(va_dpy, surf->surface_image.image_id);
2039 CHECK_VASTATUS(va_status, "vaDestroyImage");
2041 // Schedule the frame for encoding.
2042 VASurfaceID va_surface = surf->src_surface;
2043 va_status = vaBeginPicture(va_dpy, context_id, va_surface);
2044 CHECK_VASTATUS(va_status, "vaBeginPicture");
2046 if (frame_type == FRAME_IDR) {
2047 // FIXME: If the mux wants global headers, we should not put the
2048 // SPS/PPS before each IDR frame, but rather put it into the
2049 // codec extradata (formatted differently?).
2051 // NOTE: If we change ycbcr_coefficients, it will not take effect
2052 // before the next IDR frame. This is acceptable, as it should only
2053 // happen on a mode change, which is rare.
2055 render_picture(surf, frame_type, display_frame_num, gop_start_display_frame_num);
2056 if (h264_packedheader) {
2057 render_packedsequence(ycbcr_coefficients);
2058 render_packedpicture();
2061 //render_sequence();
2062 render_picture(surf, frame_type, display_frame_num, gop_start_display_frame_num);
2064 render_slice(encoding_frame_num, display_frame_num, gop_start_display_frame_num, frame_type);
2066 va_status = vaEndPicture(va_dpy, context_id);
2067 CHECK_VASTATUS(va_status, "vaEndPicture");
2069 update_ReferenceFrames(display_frame_num, frame_type);
2071 vector<size_t> ref_display_frame_numbers;
2073 // Lock the references for this frame; otherwise, they could be
2074 // rendered to before this frame is done encoding.
2076 unique_lock<mutex> lock(storage_task_queue_mutex);
2077 for (const ReferenceFrame &frame : reference_frames) {
2078 assert(surface_for_frame.count(frame.display_number));
2079 ++surface_for_frame[frame.display_number]->refcount;
2080 ref_display_frame_numbers.push_back(frame.display_number);
2084 // so now the data is done encoding (well, async job kicked off)...
2085 // we send that to the storage thread
2087 tmp.display_order = display_frame_num;
2088 tmp.frame_type = frame_type;
2091 tmp.duration = duration;
2092 tmp.ycbcr_coefficients = ycbcr_coefficients;
2093 tmp.received_ts = received_ts;
2094 tmp.ref_display_frame_numbers = move(ref_display_frame_numbers);
2095 storage_task_enqueue(move(tmp));
2099 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)
2100 : impl(new QuickSyncEncoderImpl(filename, resource_pool, surface, va_display, width, height, oformat, x264_encoder, disk_space_estimator)) {}
2102 // Must be defined here because unique_ptr<> destructor needs to know the impl.
2103 QuickSyncEncoder::~QuickSyncEncoder() {}
2105 void QuickSyncEncoder::add_audio(int64_t pts, vector<float> audio)
2107 impl->add_audio(pts, audio);
2110 bool QuickSyncEncoder::is_zerocopy() const
2112 return impl->is_zerocopy();
2115 bool QuickSyncEncoder::begin_frame(int64_t pts, int64_t duration, YCbCrLumaCoefficients ycbcr_coefficients, const vector<RefCountedFrame> &input_frames, GLuint *y_tex, GLuint *cbcr_tex)
2117 return impl->begin_frame(pts, duration, ycbcr_coefficients, input_frames, y_tex, cbcr_tex);
2120 RefCountedGLsync QuickSyncEncoder::end_frame()
2122 return impl->end_frame();
2125 void QuickSyncEncoder::shutdown()
2130 void QuickSyncEncoder::close_file()
2135 void QuickSyncEncoder::set_stream_mux(Mux *mux)
2137 impl->set_stream_mux(mux);
2140 int64_t QuickSyncEncoder::global_delay() const {
2141 return impl->global_delay();