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;
74 std::atomic<double> metric_current_file_start_time_seconds{0.0 / 0.0};
78 #define CHECK_VASTATUS(va_status, func) \
79 if (va_status != VA_STATUS_SUCCESS) { \
80 fprintf(stderr, "%s:%d (%s) failed with %d\n", __func__, __LINE__, func, va_status); \
84 #define BUFFER_OFFSET(i) ((char *)NULL + (i))
86 //#include "loadsurface.h"
88 #define NAL_REF_IDC_NONE 0
89 #define NAL_REF_IDC_LOW 1
90 #define NAL_REF_IDC_MEDIUM 2
91 #define NAL_REF_IDC_HIGH 3
99 #define SLICE_TYPE_P 0
100 #define SLICE_TYPE_B 1
101 #define SLICE_TYPE_I 2
102 #define IS_P_SLICE(type) (SLICE_TYPE_P == (type))
103 #define IS_B_SLICE(type) (SLICE_TYPE_B == (type))
104 #define IS_I_SLICE(type) (SLICE_TYPE_I == (type))
107 #define ENTROPY_MODE_CAVLC 0
108 #define ENTROPY_MODE_CABAC 1
110 #define PROFILE_IDC_BASELINE 66
111 #define PROFILE_IDC_MAIN 77
112 #define PROFILE_IDC_HIGH 100
114 #define BITSTREAM_ALLOCATE_STEPPING 4096
116 static constexpr unsigned int MaxFrameNum = (2<<16);
117 static constexpr unsigned int MaxPicOrderCntLsb = (2<<8);
118 static constexpr unsigned int Log2MaxFrameNum = 16;
119 static constexpr unsigned int Log2MaxPicOrderCntLsb = 8;
120 static constexpr int rc_default_modes[] = { // Priority list of modes.
123 VA_RC_VBR_CONSTRAINED,
131 // Supposedly vaRenderPicture() is supposed to destroy the buffer implicitly,
132 // but if we don't delete it here, we get leaks. The GStreamer implementation
134 static void render_picture_and_delete(VADisplay dpy, VAContextID context, VABufferID *buffers, int num_buffers)
136 VAStatus va_status = vaRenderPicture(dpy, context, buffers, num_buffers);
137 CHECK_VASTATUS(va_status, "vaRenderPicture");
139 for (int i = 0; i < num_buffers; ++i) {
140 va_status = vaDestroyBuffer(dpy, buffers[i]);
141 CHECK_VASTATUS(va_status, "vaDestroyBuffer");
146 va_swap32(unsigned int val)
148 unsigned char *pval = (unsigned char *)&val;
150 return ((pval[0] << 24) |
157 bitstream_start(bitstream *bs)
159 bs->max_size_in_dword = BITSTREAM_ALLOCATE_STEPPING;
160 bs->buffer = (unsigned int *)calloc(bs->max_size_in_dword * sizeof(int), 1);
165 bitstream_end(bitstream *bs)
167 int pos = (bs->bit_offset >> 5);
168 int bit_offset = (bs->bit_offset & 0x1f);
169 int bit_left = 32 - bit_offset;
172 bs->buffer[pos] = va_swap32((bs->buffer[pos] << bit_left));
177 bitstream_put_ui(bitstream *bs, unsigned int val, int size_in_bits)
179 int pos = (bs->bit_offset >> 5);
180 int bit_offset = (bs->bit_offset & 0x1f);
181 int bit_left = 32 - bit_offset;
186 bs->bit_offset += size_in_bits;
188 if (bit_left > size_in_bits) {
189 bs->buffer[pos] = (bs->buffer[pos] << size_in_bits | val);
191 size_in_bits -= bit_left;
192 if (bit_left >= 32) {
193 bs->buffer[pos] = (val >> size_in_bits);
195 bs->buffer[pos] = (bs->buffer[pos] << bit_left) | (val >> size_in_bits);
197 bs->buffer[pos] = va_swap32(bs->buffer[pos]);
199 if (pos + 1 == bs->max_size_in_dword) {
200 bs->max_size_in_dword += BITSTREAM_ALLOCATE_STEPPING;
201 bs->buffer = (unsigned int *)realloc(bs->buffer, bs->max_size_in_dword * sizeof(unsigned int));
204 bs->buffer[pos + 1] = val;
209 bitstream_put_ue(bitstream *bs, unsigned int val)
211 int size_in_bits = 0;
219 bitstream_put_ui(bs, 0, size_in_bits - 1); // leading zero
220 bitstream_put_ui(bs, val, size_in_bits);
224 bitstream_put_se(bitstream *bs, int val)
226 unsigned int new_val;
231 new_val = 2 * val - 1;
233 bitstream_put_ue(bs, new_val);
237 bitstream_byte_aligning(bitstream *bs, int bit)
239 int bit_offset = (bs->bit_offset & 0x7);
240 int bit_left = 8 - bit_offset;
246 assert(bit == 0 || bit == 1);
249 new_val = (1 << bit_left) - 1;
253 bitstream_put_ui(bs, new_val, bit_left);
257 rbsp_trailing_bits(bitstream *bs)
259 bitstream_put_ui(bs, 1, 1);
260 bitstream_byte_aligning(bs, 0);
263 static void nal_start_code_prefix(bitstream *bs)
265 bitstream_put_ui(bs, 0x00000001, 32);
268 static void nal_header(bitstream *bs, int nal_ref_idc, int nal_unit_type)
270 bitstream_put_ui(bs, 0, 1); /* forbidden_zero_bit: 0 */
271 bitstream_put_ui(bs, nal_ref_idc, 2);
272 bitstream_put_ui(bs, nal_unit_type, 5);
275 void QuickSyncEncoderImpl::sps_rbsp(YCbCrLumaCoefficients ycbcr_coefficients, bitstream *bs)
277 int profile_idc = PROFILE_IDC_BASELINE;
279 if (h264_profile == VAProfileH264High)
280 profile_idc = PROFILE_IDC_HIGH;
281 else if (h264_profile == VAProfileH264Main)
282 profile_idc = PROFILE_IDC_MAIN;
284 bitstream_put_ui(bs, profile_idc, 8); /* profile_idc */
285 bitstream_put_ui(bs, !!(constraint_set_flag & 1), 1); /* constraint_set0_flag */
286 bitstream_put_ui(bs, !!(constraint_set_flag & 2), 1); /* constraint_set1_flag */
287 bitstream_put_ui(bs, !!(constraint_set_flag & 4), 1); /* constraint_set2_flag */
288 bitstream_put_ui(bs, !!(constraint_set_flag & 8), 1); /* constraint_set3_flag */
289 bitstream_put_ui(bs, 0, 4); /* reserved_zero_4bits */
290 bitstream_put_ui(bs, seq_param.level_idc, 8); /* level_idc */
291 bitstream_put_ue(bs, seq_param.seq_parameter_set_id); /* seq_parameter_set_id */
293 if ( profile_idc == PROFILE_IDC_HIGH) {
294 bitstream_put_ue(bs, 1); /* chroma_format_idc = 1, 4:2:0 */
295 bitstream_put_ue(bs, 0); /* bit_depth_luma_minus8 */
296 bitstream_put_ue(bs, 0); /* bit_depth_chroma_minus8 */
297 bitstream_put_ui(bs, 0, 1); /* qpprime_y_zero_transform_bypass_flag */
298 bitstream_put_ui(bs, 0, 1); /* seq_scaling_matrix_present_flag */
301 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_frame_num_minus4); /* log2_max_frame_num_minus4 */
302 bitstream_put_ue(bs, seq_param.seq_fields.bits.pic_order_cnt_type); /* pic_order_cnt_type */
304 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0)
305 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4); /* log2_max_pic_order_cnt_lsb_minus4 */
310 bitstream_put_ue(bs, seq_param.max_num_ref_frames); /* num_ref_frames */
311 bitstream_put_ui(bs, 0, 1); /* gaps_in_frame_num_value_allowed_flag */
313 bitstream_put_ue(bs, seq_param.picture_width_in_mbs - 1); /* pic_width_in_mbs_minus1 */
314 bitstream_put_ue(bs, seq_param.picture_height_in_mbs - 1); /* pic_height_in_map_units_minus1 */
315 bitstream_put_ui(bs, seq_param.seq_fields.bits.frame_mbs_only_flag, 1); /* frame_mbs_only_flag */
317 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
321 bitstream_put_ui(bs, seq_param.seq_fields.bits.direct_8x8_inference_flag, 1); /* direct_8x8_inference_flag */
322 bitstream_put_ui(bs, seq_param.frame_cropping_flag, 1); /* frame_cropping_flag */
324 if (seq_param.frame_cropping_flag) {
325 bitstream_put_ue(bs, seq_param.frame_crop_left_offset); /* frame_crop_left_offset */
326 bitstream_put_ue(bs, seq_param.frame_crop_right_offset); /* frame_crop_right_offset */
327 bitstream_put_ue(bs, seq_param.frame_crop_top_offset); /* frame_crop_top_offset */
328 bitstream_put_ue(bs, seq_param.frame_crop_bottom_offset); /* frame_crop_bottom_offset */
331 //if ( frame_bit_rate < 0 ) { //TODO EW: the vui header isn't correct
333 bitstream_put_ui(bs, 0, 1); /* vui_parameters_present_flag */
335 // See H.264 annex E for the definition of this header.
336 bitstream_put_ui(bs, 1, 1); /* vui_parameters_present_flag */
337 bitstream_put_ui(bs, 0, 1); /* aspect_ratio_info_present_flag */
338 bitstream_put_ui(bs, 0, 1); /* overscan_info_present_flag */
339 bitstream_put_ui(bs, 1, 1); /* video_signal_type_present_flag */
341 bitstream_put_ui(bs, 5, 3); /* video_format (5 = Unspecified) */
342 bitstream_put_ui(bs, 0, 1); /* video_full_range_flag */
343 bitstream_put_ui(bs, 1, 1); /* colour_description_present_flag */
345 bitstream_put_ui(bs, 1, 8); /* colour_primaries (1 = BT.709) */
346 bitstream_put_ui(bs, 2, 8); /* transfer_characteristics (2 = unspecified, since we use sRGB) */
347 if (ycbcr_coefficients == YCBCR_REC_709) {
348 bitstream_put_ui(bs, 1, 8); /* matrix_coefficients (1 = BT.709) */
350 assert(ycbcr_coefficients == YCBCR_REC_601);
351 bitstream_put_ui(bs, 6, 8); /* matrix_coefficients (6 = BT.601/SMPTE 170M) */
355 bitstream_put_ui(bs, 0, 1); /* chroma_loc_info_present_flag */
356 bitstream_put_ui(bs, 1, 1); /* timing_info_present_flag */
358 bitstream_put_ui(bs, 1, 32); // FPS
359 bitstream_put_ui(bs, TIMEBASE * 2, 32); // FPS
360 bitstream_put_ui(bs, 1, 1);
362 bitstream_put_ui(bs, 1, 1); /* nal_hrd_parameters_present_flag */
365 bitstream_put_ue(bs, 0); /* cpb_cnt_minus1 */
366 bitstream_put_ui(bs, 4, 4); /* bit_rate_scale */
367 bitstream_put_ui(bs, 6, 4); /* cpb_size_scale */
369 bitstream_put_ue(bs, frame_bitrate - 1); /* bit_rate_value_minus1[0] */
370 bitstream_put_ue(bs, frame_bitrate*8 - 1); /* cpb_size_value_minus1[0] */
371 bitstream_put_ui(bs, 1, 1); /* cbr_flag[0] */
373 bitstream_put_ui(bs, 23, 5); /* initial_cpb_removal_delay_length_minus1 */
374 bitstream_put_ui(bs, 23, 5); /* cpb_removal_delay_length_minus1 */
375 bitstream_put_ui(bs, 23, 5); /* dpb_output_delay_length_minus1 */
376 bitstream_put_ui(bs, 23, 5); /* time_offset_length */
378 bitstream_put_ui(bs, 0, 1); /* vcl_hrd_parameters_present_flag */
379 bitstream_put_ui(bs, 0, 1); /* low_delay_hrd_flag */
381 bitstream_put_ui(bs, 0, 1); /* pic_struct_present_flag */
382 bitstream_put_ui(bs, 0, 1); /* bitstream_restriction_flag */
385 rbsp_trailing_bits(bs); /* rbsp_trailing_bits */
389 void QuickSyncEncoderImpl::pps_rbsp(bitstream *bs)
391 bitstream_put_ue(bs, pic_param.pic_parameter_set_id); /* pic_parameter_set_id */
392 bitstream_put_ue(bs, pic_param.seq_parameter_set_id); /* seq_parameter_set_id */
394 bitstream_put_ui(bs, pic_param.pic_fields.bits.entropy_coding_mode_flag, 1); /* entropy_coding_mode_flag */
396 bitstream_put_ui(bs, 0, 1); /* pic_order_present_flag: 0 */
398 bitstream_put_ue(bs, 0); /* num_slice_groups_minus1 */
400 bitstream_put_ue(bs, pic_param.num_ref_idx_l0_active_minus1); /* num_ref_idx_l0_active_minus1 */
401 bitstream_put_ue(bs, pic_param.num_ref_idx_l1_active_minus1); /* num_ref_idx_l1_active_minus1 1 */
403 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_pred_flag, 1); /* weighted_pred_flag: 0 */
404 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_bipred_idc, 2); /* weighted_bipred_idc: 0 */
406 bitstream_put_se(bs, pic_param.pic_init_qp - 26); /* pic_init_qp_minus26 */
407 bitstream_put_se(bs, 0); /* pic_init_qs_minus26 */
408 bitstream_put_se(bs, 0); /* chroma_qp_index_offset */
410 bitstream_put_ui(bs, pic_param.pic_fields.bits.deblocking_filter_control_present_flag, 1); /* deblocking_filter_control_present_flag */
411 bitstream_put_ui(bs, 0, 1); /* constrained_intra_pred_flag */
412 bitstream_put_ui(bs, 0, 1); /* redundant_pic_cnt_present_flag */
415 bitstream_put_ui(bs, pic_param.pic_fields.bits.transform_8x8_mode_flag, 1); /*transform_8x8_mode_flag */
416 bitstream_put_ui(bs, 0, 1); /* pic_scaling_matrix_present_flag */
417 bitstream_put_se(bs, pic_param.second_chroma_qp_index_offset ); /*second_chroma_qp_index_offset */
419 rbsp_trailing_bits(bs);
422 void QuickSyncEncoderImpl::slice_header(bitstream *bs)
424 int first_mb_in_slice = slice_param.macroblock_address;
426 bitstream_put_ue(bs, first_mb_in_slice); /* first_mb_in_slice: 0 */
427 bitstream_put_ue(bs, slice_param.slice_type); /* slice_type */
428 bitstream_put_ue(bs, slice_param.pic_parameter_set_id); /* pic_parameter_set_id: 0 */
429 bitstream_put_ui(bs, pic_param.frame_num, seq_param.seq_fields.bits.log2_max_frame_num_minus4 + 4); /* frame_num */
431 /* frame_mbs_only_flag == 1 */
432 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
437 if (pic_param.pic_fields.bits.idr_pic_flag)
438 bitstream_put_ue(bs, slice_param.idr_pic_id); /* idr_pic_id: 0 */
440 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0) {
441 bitstream_put_ui(bs, pic_param.CurrPic.TopFieldOrderCnt, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 + 4);
442 /* pic_order_present_flag == 0 */
448 /* redundant_pic_cnt_present_flag == 0 */
450 if (IS_P_SLICE(slice_param.slice_type)) {
451 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
453 if (slice_param.num_ref_idx_active_override_flag)
454 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
456 /* ref_pic_list_reordering */
457 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
458 } else if (IS_B_SLICE(slice_param.slice_type)) {
459 bitstream_put_ui(bs, slice_param.direct_spatial_mv_pred_flag, 1); /* direct_spatial_mv_pred: 1 */
461 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
463 if (slice_param.num_ref_idx_active_override_flag) {
464 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
465 bitstream_put_ue(bs, slice_param.num_ref_idx_l1_active_minus1);
468 /* ref_pic_list_reordering */
469 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
470 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l1: 0 */
473 if ((pic_param.pic_fields.bits.weighted_pred_flag &&
474 IS_P_SLICE(slice_param.slice_type)) ||
475 ((pic_param.pic_fields.bits.weighted_bipred_idc == 1) &&
476 IS_B_SLICE(slice_param.slice_type))) {
477 /* FIXME: fill weight/offset table */
481 /* dec_ref_pic_marking */
482 if (pic_param.pic_fields.bits.reference_pic_flag) { /* nal_ref_idc != 0 */
483 unsigned char no_output_of_prior_pics_flag = 0;
484 unsigned char long_term_reference_flag = 0;
485 unsigned char adaptive_ref_pic_marking_mode_flag = 0;
487 if (pic_param.pic_fields.bits.idr_pic_flag) {
488 bitstream_put_ui(bs, no_output_of_prior_pics_flag, 1); /* no_output_of_prior_pics_flag: 0 */
489 bitstream_put_ui(bs, long_term_reference_flag, 1); /* long_term_reference_flag: 0 */
491 bitstream_put_ui(bs, adaptive_ref_pic_marking_mode_flag, 1); /* adaptive_ref_pic_marking_mode_flag: 0 */
495 if (pic_param.pic_fields.bits.entropy_coding_mode_flag &&
496 !IS_I_SLICE(slice_param.slice_type))
497 bitstream_put_ue(bs, slice_param.cabac_init_idc); /* cabac_init_idc: 0 */
499 bitstream_put_se(bs, slice_param.slice_qp_delta); /* slice_qp_delta: 0 */
501 /* ignore for SP/SI */
503 if (pic_param.pic_fields.bits.deblocking_filter_control_present_flag) {
504 bitstream_put_ue(bs, slice_param.disable_deblocking_filter_idc); /* disable_deblocking_filter_idc: 0 */
506 if (slice_param.disable_deblocking_filter_idc != 1) {
507 bitstream_put_se(bs, slice_param.slice_alpha_c0_offset_div2); /* slice_alpha_c0_offset_div2: 2 */
508 bitstream_put_se(bs, slice_param.slice_beta_offset_div2); /* slice_beta_offset_div2: 2 */
512 if (pic_param.pic_fields.bits.entropy_coding_mode_flag) {
513 bitstream_byte_aligning(bs, 1);
517 int QuickSyncEncoderImpl::build_packed_pic_buffer(unsigned char **header_buffer)
521 bitstream_start(&bs);
522 nal_start_code_prefix(&bs);
523 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_PPS);
527 *header_buffer = (unsigned char *)bs.buffer;
528 return bs.bit_offset;
532 QuickSyncEncoderImpl::build_packed_seq_buffer(YCbCrLumaCoefficients ycbcr_coefficients, unsigned char **header_buffer)
536 bitstream_start(&bs);
537 nal_start_code_prefix(&bs);
538 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_SPS);
539 sps_rbsp(ycbcr_coefficients, &bs);
542 *header_buffer = (unsigned char *)bs.buffer;
543 return bs.bit_offset;
546 int QuickSyncEncoderImpl::build_packed_slice_buffer(unsigned char **header_buffer)
549 int is_idr = !!pic_param.pic_fields.bits.idr_pic_flag;
550 int is_ref = !!pic_param.pic_fields.bits.reference_pic_flag;
552 bitstream_start(&bs);
553 nal_start_code_prefix(&bs);
555 if (IS_I_SLICE(slice_param.slice_type)) {
556 nal_header(&bs, NAL_REF_IDC_HIGH, is_idr ? NAL_IDR : NAL_NON_IDR);
557 } else if (IS_P_SLICE(slice_param.slice_type)) {
558 nal_header(&bs, NAL_REF_IDC_MEDIUM, NAL_NON_IDR);
560 assert(IS_B_SLICE(slice_param.slice_type));
561 nal_header(&bs, is_ref ? NAL_REF_IDC_LOW : NAL_REF_IDC_NONE, NAL_NON_IDR);
567 *header_buffer = (unsigned char *)bs.buffer;
568 return bs.bit_offset;
573 Assume frame sequence is: Frame#0, #1, #2, ..., #M, ..., #X, ... (encoding order)
574 1) period between Frame #X and Frame #N = #X - #N
575 2) 0 means infinite for intra_period/intra_idr_period, and 0 is invalid for ip_period
576 3) intra_idr_period % intra_period (intra_period > 0) and intra_period % ip_period must be 0
577 4) intra_period and intra_idr_period take precedence over ip_period
578 5) if ip_period > 1, intra_period and intra_idr_period are not the strict periods
579 of I/IDR frames, see bellow examples
580 -------------------------------------------------------------------
581 intra_period intra_idr_period ip_period frame sequence (intra_period/intra_idr_period/ip_period)
582 0 ignored 1 IDRPPPPPPP ... (No IDR/I any more)
583 0 ignored >=2 IDR(PBB)(PBB)... (No IDR/I any more)
584 1 0 ignored IDRIIIIIII... (No IDR any more)
585 1 1 ignored IDR IDR IDR IDR...
586 1 >=2 ignored IDRII IDRII IDR... (1/3/ignore)
587 >=2 0 1 IDRPPP IPPP I... (3/0/1)
588 >=2 0 >=2 IDR(PBB)(PBB)(IBB) (6/0/3)
589 (PBB)(IBB)(PBB)(IBB)...
590 >=2 >=2 1 IDRPPPPP IPPPPP IPPPPP (6/18/1)
591 IDRPPPPP IPPPPP IPPPPP...
592 >=2 >=2 >=2 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)} (6/18/3)
593 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)}...
594 {IDR(PBB)(PBB)(IBB)(PBB)} (6/12/3)
595 {IDR(PBB)(PBB)(IBB)(PBB)}...
596 {IDR(PBB)(PBB)} (6/6/3)
600 // General pts/dts strategy:
602 // Getting pts and dts right with variable frame rate (VFR) and B-frames can be a
603 // bit tricky. We assume first of all that the frame rate never goes _above_
604 // MAX_FPS, which gives us a frame period N. The decoder can always decode
605 // in at least this speed, as long at dts <= pts (the frame is not attempted
606 // presented before it is decoded). Furthermore, we never have longer chains of
607 // B-frames than a fixed constant C. (In a B-frame chain, we say that the base
608 // I/P-frame has order O=0, the B-frame depending on it directly has order O=1,
609 // etc. The last frame in the chain, which no B-frames depend on, is the “tip”
610 // frame, with an order O <= C.)
612 // Many strategies are possible, but we establish these rules:
614 // - Tip frames have dts = pts - (C-O)*N.
615 // - Non-tip frames have dts = dts_last + N.
617 // An example, with C=2 and N=10 and the data flow showed with arrows:
620 // pts: 30 40 50 60 70 80
622 // dts: 10 30 20 60 50←40
627 // To show that this works fine also with irregular spacings, let's say that
628 // the third frame is delayed a bit (something earlier was dropped). Now the
629 // situation looks like this:
632 // pts: 30 40 80 90 100 110
634 // dts: 10 30 20 90 50←40
639 // The resetting on every tip frame makes sure dts never ends up lagging a lot
640 // behind pts, and the subtraction of (C-O)*N makes sure pts <= dts.
642 // In the output of this function, if <dts_lag> is >= 0, it means to reset the
643 // dts from the current pts minus <dts_lag>, while if it's -1, the frame is not
644 // a tip frame and should be given a dts based on the previous one.
649 void encoding2display_order(
650 int encoding_order, int intra_period,
651 int intra_idr_period, int ip_period,
652 int *displaying_order,
653 int *frame_type, int *pts_lag)
655 int encoding_order_gop = 0;
659 if (intra_period == 1) { /* all are I/IDR frames */
660 *displaying_order = encoding_order;
661 if (intra_idr_period == 0)
662 *frame_type = (encoding_order == 0)?FRAME_IDR:FRAME_I;
664 *frame_type = (encoding_order % intra_idr_period == 0)?FRAME_IDR:FRAME_I;
668 if (intra_period == 0)
669 intra_idr_period = 0;
671 if (ip_period == 1) {
672 // No B-frames, sequence is like IDR PPPPP IPPPPP.
673 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % intra_idr_period);
674 *displaying_order = encoding_order;
676 if (encoding_order_gop == 0) { /* the first frame */
677 *frame_type = FRAME_IDR;
678 } else if (intra_period != 0 && /* have I frames */
679 encoding_order_gop >= 2 &&
680 (encoding_order_gop % intra_period == 0)) {
681 *frame_type = FRAME_I;
683 *frame_type = FRAME_P;
688 // We have B-frames. Sequence is like IDR (PBB)(PBB)(IBB)(PBB).
689 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % (intra_idr_period + 1));
690 *pts_lag = -1; // Most frames are not tip frames.
692 if (encoding_order_gop == 0) { /* the first frame */
693 *frame_type = FRAME_IDR;
694 *displaying_order = encoding_order;
695 // IDR frames are a special case; I honestly can't find the logic behind
696 // why this is the right thing, but it seems to line up nicely in practice :-)
697 *pts_lag = TIMEBASE / MAX_FPS;
698 } else if (((encoding_order_gop - 1) % ip_period) != 0) { /* B frames */
699 *frame_type = FRAME_B;
700 *displaying_order = encoding_order - 1;
701 if ((encoding_order_gop % ip_period) == 0) {
702 *pts_lag = 0; // Last B-frame.
704 } else if (intra_period != 0 && /* have I frames */
705 encoding_order_gop >= 2 &&
706 ((encoding_order_gop - 1) / ip_period % (intra_period / ip_period)) == 0) {
707 *frame_type = FRAME_I;
708 *displaying_order = encoding_order + ip_period - 1;
710 *frame_type = FRAME_P;
711 *displaying_order = encoding_order + ip_period - 1;
716 static const char *rc_to_string(int rc_mode)
729 case VA_RC_VBR_CONSTRAINED:
730 return "VBR_CONSTRAINED";
736 void QuickSyncEncoderImpl::enable_zerocopy_if_possible()
738 if (global_flags.x264_video_to_disk) {
739 // Quick Sync is entirely disabled.
740 use_zerocopy = false;
741 } else if (global_flags.uncompressed_video_to_http) {
742 fprintf(stderr, "Disabling zerocopy H.264 encoding due to --http-uncompressed-video.\n");
743 use_zerocopy = false;
744 } else if (global_flags.x264_video_to_http) {
745 fprintf(stderr, "Disabling zerocopy H.264 encoding due to --http-x264-video.\n");
746 use_zerocopy = false;
750 global_flags.use_zerocopy = use_zerocopy;
753 VADisplay QuickSyncEncoderImpl::va_open_display(const string &va_display)
755 if (va_display.empty()) {
756 x11_display = XOpenDisplay(NULL);
758 fprintf(stderr, "error: can't connect to X server!\n");
761 return vaGetDisplay(x11_display);
762 } else if (va_display[0] != '/') {
763 x11_display = XOpenDisplay(va_display.c_str());
765 fprintf(stderr, "error: can't connect to X server!\n");
768 return vaGetDisplay(x11_display);
770 drm_fd = open(va_display.c_str(), O_RDWR);
772 perror(va_display.c_str());
775 use_zerocopy = false;
776 return vaGetDisplayDRM(drm_fd);
780 void QuickSyncEncoderImpl::va_close_display(VADisplay va_dpy)
783 XCloseDisplay(x11_display);
784 x11_display = nullptr;
791 int QuickSyncEncoderImpl::init_va(const string &va_display)
793 VAProfile profile_list[]={VAProfileH264High, VAProfileH264Main, VAProfileH264Baseline, VAProfileH264ConstrainedBaseline};
794 VAEntrypoint *entrypoints;
795 int num_entrypoints, slice_entrypoint;
796 int support_encode = 0;
797 int major_ver, minor_ver;
801 va_dpy = va_open_display(va_display);
802 va_status = vaInitialize(va_dpy, &major_ver, &minor_ver);
803 CHECK_VASTATUS(va_status, "vaInitialize");
805 num_entrypoints = vaMaxNumEntrypoints(va_dpy);
806 entrypoints = (VAEntrypoint *)malloc(num_entrypoints * sizeof(*entrypoints));
808 fprintf(stderr, "error: failed to initialize VA entrypoints array\n");
812 /* use the highest profile */
813 for (i = 0; i < sizeof(profile_list)/sizeof(profile_list[0]); i++) {
814 if ((h264_profile != ~0) && h264_profile != profile_list[i])
817 h264_profile = profile_list[i];
818 vaQueryConfigEntrypoints(va_dpy, h264_profile, entrypoints, &num_entrypoints);
819 for (slice_entrypoint = 0; slice_entrypoint < num_entrypoints; slice_entrypoint++) {
820 if (entrypoints[slice_entrypoint] == VAEntrypointEncSlice) {
825 if (support_encode == 1)
829 if (support_encode == 0) {
830 printf("Can't find VAEntrypointEncSlice for H264 profiles. If you are using a non-Intel GPU\n");
831 printf("but have one in your system, try launching Nageru with --va-display /dev/dri/renderD128\n");
832 printf("to use VA-API against DRM instead of X11.\n");
835 switch (h264_profile) {
836 case VAProfileH264Baseline:
838 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
839 h264_entropy_mode = 0;
841 case VAProfileH264ConstrainedBaseline:
842 constraint_set_flag |= (1 << 0 | 1 << 1); /* Annex A.2.2 */
846 case VAProfileH264Main:
847 constraint_set_flag |= (1 << 1); /* Annex A.2.2 */
850 case VAProfileH264High:
851 constraint_set_flag |= (1 << 3); /* Annex A.2.4 */
854 h264_profile = VAProfileH264Baseline;
856 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
861 VAConfigAttrib attrib[VAConfigAttribTypeMax];
863 /* find out the format for the render target, and rate control mode */
864 for (i = 0; i < VAConfigAttribTypeMax; i++)
865 attrib[i].type = (VAConfigAttribType)i;
867 va_status = vaGetConfigAttributes(va_dpy, h264_profile, VAEntrypointEncSlice,
868 &attrib[0], VAConfigAttribTypeMax);
869 CHECK_VASTATUS(va_status, "vaGetConfigAttributes");
870 /* check the interested configattrib */
871 if ((attrib[VAConfigAttribRTFormat].value & VA_RT_FORMAT_YUV420) == 0) {
872 printf("Not find desired YUV420 RT format\n");
875 config_attrib[config_attrib_num].type = VAConfigAttribRTFormat;
876 config_attrib[config_attrib_num].value = VA_RT_FORMAT_YUV420;
880 if (attrib[VAConfigAttribRateControl].value != VA_ATTRIB_NOT_SUPPORTED) {
881 int tmp = attrib[VAConfigAttribRateControl].value;
883 if (rc_mode == -1 || !(rc_mode & tmp)) {
885 printf("Warning: Don't support the specified RateControl mode: %s!!!, switch to ", rc_to_string(rc_mode));
888 for (i = 0; i < sizeof(rc_default_modes) / sizeof(rc_default_modes[0]); i++) {
889 if (rc_default_modes[i] & tmp) {
890 rc_mode = rc_default_modes[i];
896 config_attrib[config_attrib_num].type = VAConfigAttribRateControl;
897 config_attrib[config_attrib_num].value = rc_mode;
902 if (attrib[VAConfigAttribEncPackedHeaders].value != VA_ATTRIB_NOT_SUPPORTED) {
903 int tmp = attrib[VAConfigAttribEncPackedHeaders].value;
905 h264_packedheader = 1;
906 config_attrib[config_attrib_num].type = VAConfigAttribEncPackedHeaders;
907 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
909 if (tmp & VA_ENC_PACKED_HEADER_SEQUENCE) {
910 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SEQUENCE;
913 if (tmp & VA_ENC_PACKED_HEADER_PICTURE) {
914 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_PICTURE;
917 if (tmp & VA_ENC_PACKED_HEADER_SLICE) {
918 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SLICE;
921 if (tmp & VA_ENC_PACKED_HEADER_MISC) {
922 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_MISC;
925 enc_packed_header_idx = config_attrib_num;
929 if (attrib[VAConfigAttribEncInterlaced].value != VA_ATTRIB_NOT_SUPPORTED) {
930 config_attrib[config_attrib_num].type = VAConfigAttribEncInterlaced;
931 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
935 if (attrib[VAConfigAttribEncMaxRefFrames].value != VA_ATTRIB_NOT_SUPPORTED) {
936 h264_maxref = attrib[VAConfigAttribEncMaxRefFrames].value;
943 int QuickSyncEncoderImpl::setup_encode()
945 if (!global_flags.x264_video_to_disk) {
947 VASurfaceID *tmp_surfaceid;
949 VASurfaceID src_surface[SURFACE_NUM];
950 VASurfaceID ref_surface[SURFACE_NUM];
952 va_status = vaCreateConfig(va_dpy, h264_profile, VAEntrypointEncSlice,
953 &config_attrib[0], config_attrib_num, &config_id);
954 CHECK_VASTATUS(va_status, "vaCreateConfig");
956 /* create source surfaces */
957 va_status = vaCreateSurfaces(va_dpy,
958 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
959 &src_surface[0], SURFACE_NUM,
961 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
963 /* create reference surfaces */
964 va_status = vaCreateSurfaces(va_dpy,
965 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
966 &ref_surface[0], SURFACE_NUM,
968 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
970 tmp_surfaceid = (VASurfaceID *)calloc(2 * SURFACE_NUM, sizeof(VASurfaceID));
971 memcpy(tmp_surfaceid, src_surface, SURFACE_NUM * sizeof(VASurfaceID));
972 memcpy(tmp_surfaceid + SURFACE_NUM, ref_surface, SURFACE_NUM * sizeof(VASurfaceID));
974 for (int i = 0; i < SURFACE_NUM; i++) {
975 gl_surfaces[i].src_surface = src_surface[i];
976 gl_surfaces[i].ref_surface = ref_surface[i];
979 /* Create a context for this encode pipe */
980 va_status = vaCreateContext(va_dpy, config_id,
981 frame_width_mbaligned, frame_height_mbaligned,
983 tmp_surfaceid, 2 * SURFACE_NUM,
985 CHECK_VASTATUS(va_status, "vaCreateContext");
988 codedbuf_size = (frame_width_mbaligned * frame_height_mbaligned * 400) / (16*16);
990 for (int i = 0; i < SURFACE_NUM; i++) {
991 /* create coded buffer once for all
992 * other VA buffers which won't be used again after vaRenderPicture.
993 * so APP can always vaCreateBuffer for every frame
994 * but coded buffer need to be mapped and accessed after vaRenderPicture/vaEndPicture
995 * so VA won't maintain the coded buffer
997 va_status = vaCreateBuffer(va_dpy, context_id, VAEncCodedBufferType,
998 codedbuf_size, 1, NULL, &gl_surfaces[i].coded_buf);
999 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1003 /* create OpenGL objects */
1004 for (int i = 0; i < SURFACE_NUM; i++) {
1006 gl_surfaces[i].y_tex = resource_pool->create_2d_texture(GL_R8, 1, 1);
1007 gl_surfaces[i].cbcr_tex = resource_pool->create_2d_texture(GL_RG8, 1, 1);
1009 size_t bytes_per_pixel = (global_flags.x264_bit_depth > 8) ? 2 : 1;
1011 // Generate a PBO to read into. It doesn't necessarily fit 1:1 with the VA-API
1012 // buffers, due to potentially differing pitch.
1013 glGenBuffers(1, &gl_surfaces[i].pbo);
1014 glBindBuffer(GL_PIXEL_PACK_BUFFER, gl_surfaces[i].pbo);
1015 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);
1016 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);
1017 gl_surfaces[i].y_offset = 0;
1018 gl_surfaces[i].cbcr_offset = frame_width * frame_height * bytes_per_pixel;
1019 gl_surfaces[i].y_ptr = ptr + gl_surfaces[i].y_offset;
1020 gl_surfaces[i].cbcr_ptr = ptr + gl_surfaces[i].cbcr_offset;
1021 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1028 // Given a list like 1 9 3 0 2 8 4 and a pivot element 3, will produce
1031 template<class T, class C>
1032 static void sort_two(T *begin, T *end, const T &pivot, const C &less_than)
1034 T *middle = partition(begin, end, [&](const T &elem) { return less_than(elem, pivot); });
1035 sort(begin, middle, [&](const T &a, const T &b) { return less_than(b, a); });
1036 sort(middle, end, less_than);
1039 void QuickSyncEncoderImpl::update_ReferenceFrames(int current_display_frame, int frame_type)
1041 if (frame_type == FRAME_B)
1044 pic_param.CurrPic.frame_idx = current_ref_frame_num;
1046 CurrentCurrPic.flags = VA_PICTURE_H264_SHORT_TERM_REFERENCE;
1047 unique_lock<mutex> lock(storage_task_queue_mutex);
1049 // Insert the new frame at the start of the reference queue.
1050 reference_frames.push_front(ReferenceFrame{ CurrentCurrPic, current_display_frame });
1052 if (reference_frames.size() > num_ref_frames)
1054 // The back frame frame is no longer in use as a reference.
1055 int display_frame_num = reference_frames.back().display_number;
1056 assert(surface_for_frame.count(display_frame_num));
1057 release_gl_surface(display_frame_num);
1058 reference_frames.pop_back();
1061 // Mark this frame in use as a reference.
1062 assert(surface_for_frame.count(current_display_frame));
1063 ++surface_for_frame[current_display_frame]->refcount;
1065 current_ref_frame_num++;
1066 if (current_ref_frame_num > MaxFrameNum)
1067 current_ref_frame_num = 0;
1071 void QuickSyncEncoderImpl::update_RefPicList_P(VAPictureH264 RefPicList0_P[MAX_NUM_REF2])
1073 const auto descending_by_frame_idx = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1074 return a.frame_idx > b.frame_idx;
1077 for (size_t i = 0; i < reference_frames.size(); ++i) {
1078 RefPicList0_P[i] = reference_frames[i].pic;
1080 sort(&RefPicList0_P[0], &RefPicList0_P[reference_frames.size()], descending_by_frame_idx);
1083 void QuickSyncEncoderImpl::update_RefPicList_B(VAPictureH264 RefPicList0_B[MAX_NUM_REF2], VAPictureH264 RefPicList1_B[MAX_NUM_REF2])
1085 const auto ascending_by_top_field_order_cnt = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1086 return a.TopFieldOrderCnt < b.TopFieldOrderCnt;
1088 const auto descending_by_top_field_order_cnt = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1089 return a.TopFieldOrderCnt > b.TopFieldOrderCnt;
1092 for (size_t i = 0; i < reference_frames.size(); ++i) {
1093 RefPicList0_B[i] = reference_frames[i].pic;
1094 RefPicList1_B[i] = reference_frames[i].pic;
1096 sort_two(&RefPicList0_B[0], &RefPicList0_B[reference_frames.size()], CurrentCurrPic, ascending_by_top_field_order_cnt);
1097 sort_two(&RefPicList1_B[0], &RefPicList1_B[reference_frames.size()], CurrentCurrPic, descending_by_top_field_order_cnt);
1101 int QuickSyncEncoderImpl::render_sequence()
1103 VABufferID seq_param_buf, rc_param_buf, render_id[2];
1105 VAEncMiscParameterBuffer *misc_param;
1106 VAEncMiscParameterRateControl *misc_rate_ctrl;
1108 seq_param.level_idc = 41 /*SH_LEVEL_3*/;
1109 seq_param.picture_width_in_mbs = frame_width_mbaligned / 16;
1110 seq_param.picture_height_in_mbs = frame_height_mbaligned / 16;
1111 seq_param.bits_per_second = frame_bitrate;
1113 seq_param.intra_period = intra_period;
1114 seq_param.intra_idr_period = intra_idr_period;
1115 seq_param.ip_period = ip_period;
1117 seq_param.max_num_ref_frames = num_ref_frames;
1118 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1119 seq_param.time_scale = TIMEBASE * 2;
1120 seq_param.num_units_in_tick = 1; /* Tc = num_units_in_tick / scale */
1121 seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 = Log2MaxPicOrderCntLsb - 4;
1122 seq_param.seq_fields.bits.log2_max_frame_num_minus4 = Log2MaxFrameNum - 4;;
1123 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1124 seq_param.seq_fields.bits.chroma_format_idc = 1;
1125 seq_param.seq_fields.bits.direct_8x8_inference_flag = 1;
1127 if (frame_width != frame_width_mbaligned ||
1128 frame_height != frame_height_mbaligned) {
1129 seq_param.frame_cropping_flag = 1;
1130 seq_param.frame_crop_left_offset = 0;
1131 seq_param.frame_crop_right_offset = (frame_width_mbaligned - frame_width)/2;
1132 seq_param.frame_crop_top_offset = 0;
1133 seq_param.frame_crop_bottom_offset = (frame_height_mbaligned - frame_height)/2;
1136 va_status = vaCreateBuffer(va_dpy, context_id,
1137 VAEncSequenceParameterBufferType,
1138 sizeof(seq_param), 1, &seq_param, &seq_param_buf);
1139 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1141 va_status = vaCreateBuffer(va_dpy, context_id,
1142 VAEncMiscParameterBufferType,
1143 sizeof(VAEncMiscParameterBuffer) + sizeof(VAEncMiscParameterRateControl),
1144 1, NULL, &rc_param_buf);
1145 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1147 vaMapBuffer(va_dpy, rc_param_buf, (void **)&misc_param);
1148 misc_param->type = VAEncMiscParameterTypeRateControl;
1149 misc_rate_ctrl = (VAEncMiscParameterRateControl *)misc_param->data;
1150 memset(misc_rate_ctrl, 0, sizeof(*misc_rate_ctrl));
1151 misc_rate_ctrl->bits_per_second = frame_bitrate;
1152 misc_rate_ctrl->target_percentage = 66;
1153 misc_rate_ctrl->window_size = 1000;
1154 misc_rate_ctrl->initial_qp = initial_qp;
1155 misc_rate_ctrl->min_qp = minimal_qp;
1156 misc_rate_ctrl->basic_unit_size = 0;
1157 vaUnmapBuffer(va_dpy, rc_param_buf);
1159 render_id[0] = seq_param_buf;
1160 render_id[1] = rc_param_buf;
1162 render_picture_and_delete(va_dpy, context_id, &render_id[0], 2);
1167 static int calc_poc(int pic_order_cnt_lsb, int frame_type)
1169 static int PicOrderCntMsb_ref = 0, pic_order_cnt_lsb_ref = 0;
1170 int prevPicOrderCntMsb, prevPicOrderCntLsb;
1171 int PicOrderCntMsb, TopFieldOrderCnt;
1173 if (frame_type == FRAME_IDR)
1174 prevPicOrderCntMsb = prevPicOrderCntLsb = 0;
1176 prevPicOrderCntMsb = PicOrderCntMsb_ref;
1177 prevPicOrderCntLsb = pic_order_cnt_lsb_ref;
1180 if ((pic_order_cnt_lsb < prevPicOrderCntLsb) &&
1181 ((prevPicOrderCntLsb - pic_order_cnt_lsb) >= (int)(MaxPicOrderCntLsb / 2)))
1182 PicOrderCntMsb = prevPicOrderCntMsb + MaxPicOrderCntLsb;
1183 else if ((pic_order_cnt_lsb > prevPicOrderCntLsb) &&
1184 ((pic_order_cnt_lsb - prevPicOrderCntLsb) > (int)(MaxPicOrderCntLsb / 2)))
1185 PicOrderCntMsb = prevPicOrderCntMsb - MaxPicOrderCntLsb;
1187 PicOrderCntMsb = prevPicOrderCntMsb;
1189 TopFieldOrderCnt = PicOrderCntMsb + pic_order_cnt_lsb;
1191 if (frame_type != FRAME_B) {
1192 PicOrderCntMsb_ref = PicOrderCntMsb;
1193 pic_order_cnt_lsb_ref = pic_order_cnt_lsb;
1196 return TopFieldOrderCnt;
1199 int QuickSyncEncoderImpl::render_picture(GLSurface *surf, int frame_type, int display_frame_num, int gop_start_display_frame_num)
1201 VABufferID pic_param_buf;
1205 pic_param.CurrPic.picture_id = surf->ref_surface;
1206 pic_param.CurrPic.frame_idx = current_ref_frame_num;
1207 pic_param.CurrPic.flags = 0;
1208 pic_param.CurrPic.TopFieldOrderCnt = calc_poc((display_frame_num - gop_start_display_frame_num) % MaxPicOrderCntLsb, frame_type);
1209 pic_param.CurrPic.BottomFieldOrderCnt = pic_param.CurrPic.TopFieldOrderCnt;
1210 CurrentCurrPic = pic_param.CurrPic;
1212 for (i = 0; i < reference_frames.size(); i++) {
1213 pic_param.ReferenceFrames[i] = reference_frames[i].pic;
1215 for (i = reference_frames.size(); i < MAX_NUM_REF1; i++) {
1216 pic_param.ReferenceFrames[i].picture_id = VA_INVALID_SURFACE;
1217 pic_param.ReferenceFrames[i].flags = VA_PICTURE_H264_INVALID;
1220 pic_param.pic_fields.bits.idr_pic_flag = (frame_type == FRAME_IDR);
1221 pic_param.pic_fields.bits.reference_pic_flag = (frame_type != FRAME_B);
1222 pic_param.pic_fields.bits.entropy_coding_mode_flag = h264_entropy_mode;
1223 pic_param.pic_fields.bits.deblocking_filter_control_present_flag = 1;
1224 pic_param.frame_num = current_ref_frame_num; // FIXME: is this correct?
1225 pic_param.coded_buf = surf->coded_buf;
1226 pic_param.last_picture = false; // FIXME
1227 pic_param.pic_init_qp = initial_qp;
1229 va_status = vaCreateBuffer(va_dpy, context_id, VAEncPictureParameterBufferType,
1230 sizeof(pic_param), 1, &pic_param, &pic_param_buf);
1231 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1233 render_picture_and_delete(va_dpy, context_id, &pic_param_buf, 1);
1238 int QuickSyncEncoderImpl::render_packedsequence(YCbCrLumaCoefficients ycbcr_coefficients)
1240 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1241 VABufferID packedseq_para_bufid, packedseq_data_bufid, render_id[2];
1242 unsigned int length_in_bits;
1243 unsigned char *packedseq_buffer = NULL;
1246 length_in_bits = build_packed_seq_buffer(ycbcr_coefficients, &packedseq_buffer);
1248 packedheader_param_buffer.type = VAEncPackedHeaderSequence;
1250 packedheader_param_buffer.bit_length = length_in_bits; /*length_in_bits*/
1251 packedheader_param_buffer.has_emulation_bytes = 0;
1252 va_status = vaCreateBuffer(va_dpy,
1254 VAEncPackedHeaderParameterBufferType,
1255 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1256 &packedseq_para_bufid);
1257 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1259 va_status = vaCreateBuffer(va_dpy,
1261 VAEncPackedHeaderDataBufferType,
1262 (length_in_bits + 7) / 8, 1, packedseq_buffer,
1263 &packedseq_data_bufid);
1264 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1266 render_id[0] = packedseq_para_bufid;
1267 render_id[1] = packedseq_data_bufid;
1268 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1270 free(packedseq_buffer);
1276 int QuickSyncEncoderImpl::render_packedpicture()
1278 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1279 VABufferID packedpic_para_bufid, packedpic_data_bufid, render_id[2];
1280 unsigned int length_in_bits;
1281 unsigned char *packedpic_buffer = NULL;
1284 length_in_bits = build_packed_pic_buffer(&packedpic_buffer);
1285 packedheader_param_buffer.type = VAEncPackedHeaderPicture;
1286 packedheader_param_buffer.bit_length = length_in_bits;
1287 packedheader_param_buffer.has_emulation_bytes = 0;
1289 va_status = vaCreateBuffer(va_dpy,
1291 VAEncPackedHeaderParameterBufferType,
1292 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1293 &packedpic_para_bufid);
1294 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1296 va_status = vaCreateBuffer(va_dpy,
1298 VAEncPackedHeaderDataBufferType,
1299 (length_in_bits + 7) / 8, 1, packedpic_buffer,
1300 &packedpic_data_bufid);
1301 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1303 render_id[0] = packedpic_para_bufid;
1304 render_id[1] = packedpic_data_bufid;
1305 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1307 free(packedpic_buffer);
1312 void QuickSyncEncoderImpl::render_packedslice()
1314 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1315 VABufferID packedslice_para_bufid, packedslice_data_bufid, render_id[2];
1316 unsigned int length_in_bits;
1317 unsigned char *packedslice_buffer = NULL;
1320 length_in_bits = build_packed_slice_buffer(&packedslice_buffer);
1321 packedheader_param_buffer.type = VAEncPackedHeaderSlice;
1322 packedheader_param_buffer.bit_length = length_in_bits;
1323 packedheader_param_buffer.has_emulation_bytes = 0;
1325 va_status = vaCreateBuffer(va_dpy,
1327 VAEncPackedHeaderParameterBufferType,
1328 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1329 &packedslice_para_bufid);
1330 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1332 va_status = vaCreateBuffer(va_dpy,
1334 VAEncPackedHeaderDataBufferType,
1335 (length_in_bits + 7) / 8, 1, packedslice_buffer,
1336 &packedslice_data_bufid);
1337 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1339 render_id[0] = packedslice_para_bufid;
1340 render_id[1] = packedslice_data_bufid;
1341 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1343 free(packedslice_buffer);
1346 int QuickSyncEncoderImpl::render_slice(int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num, int frame_type)
1348 VABufferID slice_param_buf;
1352 /* one frame, one slice */
1353 slice_param.macroblock_address = 0;
1354 slice_param.num_macroblocks = frame_width_mbaligned * frame_height_mbaligned/(16*16); /* Measured by MB */
1355 slice_param.slice_type = (frame_type == FRAME_IDR)?2:frame_type;
1356 if (frame_type == FRAME_IDR) {
1357 if (encoding_frame_num != 0)
1358 ++slice_param.idr_pic_id;
1359 } else if (frame_type == FRAME_P) {
1360 VAPictureH264 RefPicList0_P[MAX_NUM_REF2];
1361 update_RefPicList_P(RefPicList0_P);
1363 int refpiclist0_max = h264_maxref & 0xffff;
1364 memcpy(slice_param.RefPicList0, RefPicList0_P, refpiclist0_max*sizeof(VAPictureH264));
1366 for (i = refpiclist0_max; i < MAX_NUM_REF2; i++) {
1367 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1368 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1370 } else if (frame_type == FRAME_B) {
1371 VAPictureH264 RefPicList0_B[MAX_NUM_REF2], RefPicList1_B[MAX_NUM_REF2];
1372 update_RefPicList_B(RefPicList0_B, RefPicList1_B);
1374 int refpiclist0_max = h264_maxref & 0xffff;
1375 int refpiclist1_max = (h264_maxref >> 16) & 0xffff;
1377 memcpy(slice_param.RefPicList0, RefPicList0_B, refpiclist0_max*sizeof(VAPictureH264));
1378 for (i = refpiclist0_max; i < MAX_NUM_REF2; i++) {
1379 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1380 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1383 memcpy(slice_param.RefPicList1, RefPicList1_B, refpiclist1_max*sizeof(VAPictureH264));
1384 for (i = refpiclist1_max; i < MAX_NUM_REF2; i++) {
1385 slice_param.RefPicList1[i].picture_id = VA_INVALID_SURFACE;
1386 slice_param.RefPicList1[i].flags = VA_PICTURE_H264_INVALID;
1390 slice_param.slice_alpha_c0_offset_div2 = 0;
1391 slice_param.slice_beta_offset_div2 = 0;
1392 slice_param.direct_spatial_mv_pred_flag = 1;
1393 slice_param.pic_order_cnt_lsb = (display_frame_num - gop_start_display_frame_num) % MaxPicOrderCntLsb;
1396 if (h264_packedheader &&
1397 config_attrib[enc_packed_header_idx].value & VA_ENC_PACKED_HEADER_SLICE)
1398 render_packedslice();
1400 va_status = vaCreateBuffer(va_dpy, context_id, VAEncSliceParameterBufferType,
1401 sizeof(slice_param), 1, &slice_param, &slice_param_buf);
1402 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1404 render_picture_and_delete(va_dpy, context_id, &slice_param_buf, 1);
1411 void QuickSyncEncoderImpl::save_codeddata(GLSurface *surf, storage_task task)
1413 VACodedBufferSegment *buf_list = NULL;
1418 va_status = vaMapBuffer(va_dpy, surf->coded_buf, (void **)(&buf_list));
1419 CHECK_VASTATUS(va_status, "vaMapBuffer");
1420 while (buf_list != NULL) {
1421 data.append(reinterpret_cast<const char *>(buf_list->buf), buf_list->size);
1422 buf_list = (VACodedBufferSegment *) buf_list->next;
1424 vaUnmapBuffer(va_dpy, surf->coded_buf);
1426 static int frameno = 0;
1427 print_latency("Current Quick Sync latency (video inputs → disk mux):",
1428 task.received_ts, (task.frame_type == FRAME_B), &frameno, &qs_latency_histogram);
1433 memset(&pkt, 0, sizeof(pkt));
1435 pkt.data = reinterpret_cast<uint8_t *>(&data[0]);
1436 pkt.size = data.size();
1437 pkt.stream_index = 0;
1438 if (task.frame_type == FRAME_IDR) {
1439 pkt.flags = AV_PKT_FLAG_KEY;
1443 pkt.duration = task.duration;
1445 file_mux->add_packet(pkt, task.pts + global_delay(), task.dts + global_delay());
1447 if (!global_flags.uncompressed_video_to_http &&
1448 !global_flags.x264_video_to_http) {
1449 stream_mux->add_packet(pkt, task.pts + global_delay(), task.dts + global_delay());
1455 // this is weird. but it seems to put a new frame onto the queue
1456 void QuickSyncEncoderImpl::storage_task_enqueue(storage_task task)
1458 unique_lock<mutex> lock(storage_task_queue_mutex);
1459 storage_task_queue.push(move(task));
1460 storage_task_queue_changed.notify_all();
1463 void QuickSyncEncoderImpl::storage_task_thread()
1465 pthread_setname_np(pthread_self(), "QS_Storage");
1467 storage_task current;
1470 // wait until there's an encoded frame
1471 unique_lock<mutex> lock(storage_task_queue_mutex);
1472 storage_task_queue_changed.wait(lock, [this]{ return storage_thread_should_quit || !storage_task_queue.empty(); });
1473 if (storage_thread_should_quit && storage_task_queue.empty()) return;
1474 current = move(storage_task_queue.front());
1475 storage_task_queue.pop();
1476 surf = surface_for_frame[current.display_order];
1477 assert(surf != nullptr);
1482 size_t display_order = current.display_order;
1483 vector<size_t> ref_display_frame_numbers = move(current.ref_display_frame_numbers);
1485 // waits for data, then saves it to disk.
1486 va_status = vaSyncSurface(va_dpy, surf->src_surface);
1487 CHECK_VASTATUS(va_status, "vaSyncSurface");
1488 save_codeddata(surf, move(current));
1490 // Unlock the frame, and all its references.
1492 unique_lock<mutex> lock(storage_task_queue_mutex);
1493 release_gl_surface(display_order);
1495 for (size_t frame_num : ref_display_frame_numbers) {
1496 release_gl_surface(frame_num);
1502 void QuickSyncEncoderImpl::release_encode()
1504 for (unsigned i = 0; i < SURFACE_NUM; i++) {
1505 vaDestroyBuffer(va_dpy, gl_surfaces[i].coded_buf);
1506 vaDestroySurfaces(va_dpy, &gl_surfaces[i].src_surface, 1);
1507 vaDestroySurfaces(va_dpy, &gl_surfaces[i].ref_surface, 1);
1510 vaDestroyContext(va_dpy, context_id);
1511 vaDestroyConfig(va_dpy, config_id);
1514 void QuickSyncEncoderImpl::release_gl_resources()
1516 assert(is_shutdown);
1517 if (has_released_gl_resources) {
1521 for (unsigned i = 0; i < SURFACE_NUM; i++) {
1523 resource_pool->release_2d_texture(gl_surfaces[i].y_tex);
1524 resource_pool->release_2d_texture(gl_surfaces[i].cbcr_tex);
1526 glBindBuffer(GL_PIXEL_PACK_BUFFER, gl_surfaces[i].pbo);
1527 glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
1528 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1529 glDeleteBuffers(1, &gl_surfaces[i].pbo);
1533 has_released_gl_resources = true;
1536 int QuickSyncEncoderImpl::deinit_va()
1538 vaTerminate(va_dpy);
1540 va_close_display(va_dpy);
1545 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)
1546 : 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)
1548 file_audio_encoder.reset(new AudioEncoder(AUDIO_OUTPUT_CODEC_NAME, DEFAULT_AUDIO_OUTPUT_BIT_RATE, oformat));
1549 open_output_file(filename);
1550 file_audio_encoder->add_mux(file_mux.get());
1552 frame_width_mbaligned = (frame_width + 15) & (~15);
1553 frame_height_mbaligned = (frame_height + 15) & (~15);
1557 if (global_flags.x264_video_to_http || global_flags.x264_video_to_disk) {
1558 assert(x264_encoder != nullptr);
1560 assert(x264_encoder == nullptr);
1563 enable_zerocopy_if_possible();
1564 if (!global_flags.x264_video_to_disk) {
1565 init_va(va_display);
1569 if (!global_flags.x264_video_to_disk) {
1570 memset(&seq_param, 0, sizeof(seq_param));
1571 memset(&pic_param, 0, sizeof(pic_param));
1572 memset(&slice_param, 0, sizeof(slice_param));
1575 if (!mux_metrics_inited) {
1576 mixer_latency_histogram.init("mixer");
1577 qs_latency_histogram.init("quick_sync");
1578 current_file_mux_metrics.init({{ "destination", "current_file" }});
1579 total_mux_metrics.init({{ "destination", "files_total" }});
1580 global_metrics.add("current_file_start_time_seconds", &metric_current_file_start_time_seconds, Metrics::TYPE_GAUGE);
1581 mux_metrics_inited = true;
1584 storage_thread = thread(&QuickSyncEncoderImpl::storage_task_thread, this);
1586 encode_thread = thread([this]{
1587 QOpenGLContext *context = create_context(this->surface);
1588 eglBindAPI(EGL_OPENGL_API);
1589 if (!make_current(context, this->surface)) {
1590 printf("display=%p surface=%p context=%p curr=%p err=%d\n", eglGetCurrentDisplay(), this->surface, context, eglGetCurrentContext(),
1594 encode_thread_func();
1595 delete_context(context);
1599 QuickSyncEncoderImpl::~QuickSyncEncoderImpl()
1602 release_gl_resources();
1605 QuickSyncEncoderImpl::GLSurface *QuickSyncEncoderImpl::allocate_gl_surface()
1607 for (unsigned i = 0; i < SURFACE_NUM; ++i) {
1608 if (gl_surfaces[i].refcount == 0) {
1609 ++gl_surfaces[i].refcount;
1610 return &gl_surfaces[i];
1616 void QuickSyncEncoderImpl::release_gl_surface(size_t display_frame_num)
1618 assert(surface_for_frame.count(display_frame_num));
1619 QuickSyncEncoderImpl::GLSurface *surf = surface_for_frame[display_frame_num];
1620 if (--surf->refcount == 0) {
1621 assert(surface_for_frame.count(display_frame_num));
1622 surface_for_frame.erase(display_frame_num);
1623 storage_task_queue_changed.notify_all();
1627 bool QuickSyncEncoderImpl::is_zerocopy() const
1629 return use_zerocopy;
1632 bool QuickSyncEncoderImpl::begin_frame(int64_t pts, int64_t duration, YCbCrLumaCoefficients ycbcr_coefficients, const vector<RefCountedFrame> &input_frames, GLuint *y_tex, GLuint *cbcr_tex)
1634 assert(!is_shutdown);
1635 GLSurface *surf = nullptr;
1637 // Wait until this frame slot is done encoding.
1638 unique_lock<mutex> lock(storage_task_queue_mutex);
1639 surf = allocate_gl_surface();
1640 if (surf == nullptr) {
1641 fprintf(stderr, "Warning: No free slots for frame %d, rendering has to wait for H.264 encoder\n",
1642 current_storage_frame);
1643 storage_task_queue_changed.wait(lock, [this, &surf]{
1644 if (storage_thread_should_quit)
1646 surf = allocate_gl_surface();
1647 return surf != nullptr;
1650 if (storage_thread_should_quit) return false;
1651 assert(surf != nullptr);
1652 surface_for_frame[current_storage_frame] = surf;
1656 *y_tex = surf->y_tex;
1657 *cbcr_tex = surf->cbcr_tex;
1659 surf->y_tex = *y_tex;
1660 surf->cbcr_tex = *cbcr_tex;
1663 if (!global_flags.x264_video_to_disk) {
1664 VAStatus va_status = vaDeriveImage(va_dpy, surf->src_surface, &surf->surface_image);
1665 CHECK_VASTATUS(va_status, "vaDeriveImage");
1668 VABufferInfo buf_info;
1669 buf_info.mem_type = VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME; // or VA_SURFACE_ATTRIB_MEM_TYPE_KERNEL_DRM?
1670 va_status = vaAcquireBufferHandle(va_dpy, surf->surface_image.buf, &buf_info);
1671 CHECK_VASTATUS(va_status, "vaAcquireBufferHandle");
1674 surf->y_egl_image = EGL_NO_IMAGE_KHR;
1675 EGLint y_attribs[] = {
1676 EGL_WIDTH, frame_width,
1677 EGL_HEIGHT, frame_height,
1678 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('R', '8', ' ', ' '),
1679 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
1680 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[0]),
1681 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[0]),
1685 surf->y_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, y_attribs);
1686 assert(surf->y_egl_image != EGL_NO_IMAGE_KHR);
1688 // Associate Y image to a texture.
1689 glBindTexture(GL_TEXTURE_2D, *y_tex);
1690 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->y_egl_image);
1692 // Create CbCr image.
1693 surf->cbcr_egl_image = EGL_NO_IMAGE_KHR;
1694 EGLint cbcr_attribs[] = {
1695 EGL_WIDTH, frame_width,
1696 EGL_HEIGHT, frame_height,
1697 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('G', 'R', '8', '8'),
1698 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
1699 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[1]),
1700 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[1]),
1704 surf->cbcr_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, cbcr_attribs);
1705 assert(surf->cbcr_egl_image != EGL_NO_IMAGE_KHR);
1707 // Associate CbCr image to a texture.
1708 glBindTexture(GL_TEXTURE_2D, *cbcr_tex);
1709 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->cbcr_egl_image);
1713 current_video_frame = PendingFrame{ {}, input_frames, pts, duration, ycbcr_coefficients };
1718 void QuickSyncEncoderImpl::add_audio(int64_t pts, vector<float> audio)
1720 assert(!is_shutdown);
1721 file_audio_encoder->encode_audio(audio, pts + global_delay());
1724 RefCountedGLsync QuickSyncEncoderImpl::end_frame()
1726 assert(!is_shutdown);
1728 if (!use_zerocopy) {
1729 GLenum type = global_flags.x264_bit_depth > 8 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_BYTE;
1732 unique_lock<mutex> lock(storage_task_queue_mutex);
1733 surf = surface_for_frame[current_storage_frame];
1734 assert(surf != nullptr);
1737 glPixelStorei(GL_PACK_ROW_LENGTH, 0);
1740 glBindBuffer(GL_PIXEL_PACK_BUFFER, surf->pbo);
1743 glBindTexture(GL_TEXTURE_2D, surf->y_tex);
1745 glGetTexImage(GL_TEXTURE_2D, 0, GL_RED, type, BUFFER_OFFSET(surf->y_offset));
1748 glBindTexture(GL_TEXTURE_2D, surf->cbcr_tex);
1750 glGetTexImage(GL_TEXTURE_2D, 0, GL_RG, type, BUFFER_OFFSET(surf->cbcr_offset));
1753 // We don't own these; the caller does.
1754 surf->y_tex = surf->cbcr_tex = 0;
1756 glBindTexture(GL_TEXTURE_2D, 0);
1758 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1761 glMemoryBarrier(GL_TEXTURE_UPDATE_BARRIER_BIT | GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT);
1765 RefCountedGLsync fence = RefCountedGLsync(GL_SYNC_GPU_COMMANDS_COMPLETE, /*flags=*/0);
1767 glFlush(); // Make the H.264 thread see the fence as soon as possible.
1771 unique_lock<mutex> lock(frame_queue_mutex);
1772 current_video_frame.fence = fence;
1773 pending_video_frames.push(move(current_video_frame));
1774 ++current_storage_frame;
1776 frame_queue_nonempty.notify_all();
1780 void QuickSyncEncoderImpl::shutdown()
1787 unique_lock<mutex> lock(frame_queue_mutex);
1788 encode_thread_should_quit = true;
1789 frame_queue_nonempty.notify_all();
1791 encode_thread.join();
1793 unique_lock<mutex> lock(storage_task_queue_mutex);
1794 storage_thread_should_quit = true;
1795 frame_queue_nonempty.notify_all();
1796 storage_task_queue_changed.notify_all();
1798 storage_thread.join();
1800 // Encode any leftover audio in the queues, and also any delayed frames.
1801 file_audio_encoder->encode_last_audio();
1803 if (!global_flags.x264_video_to_disk) {
1810 void QuickSyncEncoderImpl::close_file()
1813 metric_current_file_start_time_seconds = 0.0 / 0.0;
1816 void QuickSyncEncoderImpl::open_output_file(const std::string &filename)
1818 AVFormatContext *avctx = avformat_alloc_context();
1819 avctx->oformat = av_guess_format(NULL, filename.c_str(), NULL);
1820 assert(filename.size() < sizeof(avctx->filename) - 1);
1821 strcpy(avctx->filename, filename.c_str());
1823 string url = "file:" + filename;
1824 int ret = avio_open2(&avctx->pb, url.c_str(), AVIO_FLAG_WRITE, &avctx->interrupt_callback, NULL);
1826 char tmp[AV_ERROR_MAX_STRING_SIZE];
1827 fprintf(stderr, "%s: avio_open2() failed: %s\n", filename.c_str(), av_make_error_string(tmp, sizeof(tmp), ret));
1831 string video_extradata; // FIXME: See other comment about global headers.
1832 if (global_flags.x264_video_to_disk) {
1833 video_extradata = x264_encoder->get_global_headers();
1836 current_file_mux_metrics.reset();
1838 AVCodecParametersWithDeleter audio_codecpar = file_audio_encoder->get_codec_parameters();
1839 file_mux.reset(new Mux(avctx, frame_width, frame_height, Mux::CODEC_H264, video_extradata, audio_codecpar.get(), TIMEBASE,
1840 std::bind(&DiskSpaceEstimator::report_write, disk_space_estimator, filename, _1),
1841 { ¤t_file_mux_metrics, &total_mux_metrics }));
1842 metric_current_file_start_time_seconds = get_timestamp_for_metrics();
1844 if (global_flags.x264_video_to_disk) {
1845 x264_encoder->add_mux(file_mux.get());
1849 void QuickSyncEncoderImpl::encode_thread_func()
1851 pthread_setname_np(pthread_self(), "QS_Encode");
1853 int64_t last_dts = -1;
1854 int gop_start_display_frame_num = 0;
1855 for (int display_frame_num = 0; ; ++display_frame_num) {
1856 // Wait for the frame to be in the queue. Note that this only means
1857 // we started rendering it.
1860 unique_lock<mutex> lock(frame_queue_mutex);
1861 frame_queue_nonempty.wait(lock, [this]{
1862 return encode_thread_should_quit || !pending_video_frames.empty();
1864 if (encode_thread_should_quit && pending_video_frames.empty()) {
1865 // We may have queued frames left in the reorder buffer
1866 // that were supposed to be B-frames, but have no P-frame
1867 // to be encoded against. If so, encode them all as
1868 // P-frames instead. Note that this happens under the mutex,
1869 // but nobody else uses it at this point, since we're shutting down,
1870 // so there's no contention.
1871 encode_remaining_frames_as_p(quicksync_encoding_frame_num, gop_start_display_frame_num, last_dts);
1874 frame = move(pending_video_frames.front());
1875 pending_video_frames.pop();
1879 // Pass the frame on to x264 (or uncompressed to HTTP) as needed.
1880 // Note that this implicitly waits for the frame to be done rendering.
1881 pass_frame(frame, display_frame_num, frame.pts, frame.duration);
1883 if (global_flags.x264_video_to_disk) {
1884 unique_lock<mutex> lock(storage_task_queue_mutex);
1885 release_gl_surface(display_frame_num);
1889 reorder_buffer[display_frame_num] = move(frame);
1891 // Now encode as many QuickSync frames as we can using the frames we have available.
1892 // (It could be zero, or it could be multiple.) FIXME: make a function.
1895 int frame_type, quicksync_display_frame_num;
1896 encoding2display_order(quicksync_encoding_frame_num, intra_period, intra_idr_period, ip_period,
1897 &quicksync_display_frame_num, &frame_type, &pts_lag);
1898 if (!reorder_buffer.count(quicksync_display_frame_num)) {
1901 frame = move(reorder_buffer[quicksync_display_frame_num]);
1902 reorder_buffer.erase(quicksync_display_frame_num);
1904 if (frame_type == FRAME_IDR) {
1905 // Release any reference frames from the previous GOP.
1906 for (const ReferenceFrame &frame : reference_frames) {
1907 release_gl_surface(frame.display_number);
1909 reference_frames.clear();
1910 current_ref_frame_num = 0;
1911 gop_start_display_frame_num = quicksync_display_frame_num;
1914 // Determine the dts of this frame.
1916 if (pts_lag == -1) {
1917 assert(last_dts != -1);
1918 dts = last_dts + (TIMEBASE / MAX_FPS);
1920 dts = frame.pts - pts_lag;
1924 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);
1925 ++quicksync_encoding_frame_num;
1930 void QuickSyncEncoderImpl::encode_remaining_frames_as_p(int encoding_frame_num, int gop_start_display_frame_num, int64_t last_dts)
1932 if (reorder_buffer.empty()) {
1936 for (auto &pending_frame : reorder_buffer) {
1937 int display_frame_num = pending_frame.first;
1938 assert(display_frame_num > 0);
1939 PendingFrame frame = move(pending_frame.second);
1940 int64_t dts = last_dts + (TIMEBASE / MAX_FPS);
1941 printf("Finalizing encode: Encoding leftover frame %d as P-frame instead of B-frame.\n", display_frame_num);
1942 encode_frame(frame, encoding_frame_num++, display_frame_num, gop_start_display_frame_num, FRAME_P, frame.pts, dts, frame.duration, frame.ycbcr_coefficients);
1947 void QuickSyncEncoderImpl::add_packet_for_uncompressed_frame(int64_t pts, int64_t duration, const uint8_t *data)
1950 memset(&pkt, 0, sizeof(pkt));
1952 pkt.data = const_cast<uint8_t *>(data);
1953 pkt.size = frame_width * frame_height * 2;
1954 pkt.stream_index = 0;
1955 pkt.flags = AV_PKT_FLAG_KEY;
1956 pkt.duration = duration;
1957 stream_mux->add_packet(pkt, pts, pts);
1962 void memcpy_with_pitch(uint8_t *dst, const uint8_t *src, size_t src_width, size_t dst_pitch, size_t height)
1964 if (src_width == dst_pitch) {
1965 memcpy(dst, src, src_width * height);
1967 for (size_t y = 0; y < height; ++y) {
1968 const uint8_t *sptr = src + y * src_width;
1969 uint8_t *dptr = dst + y * dst_pitch;
1970 memcpy(dptr, sptr, src_width);
1977 void QuickSyncEncoderImpl::pass_frame(QuickSyncEncoderImpl::PendingFrame frame, int display_frame_num, int64_t pts, int64_t duration)
1979 // Wait for the GPU to be done with the frame.
1982 sync_status = glClientWaitSync(frame.fence.get(), 0, 1000000000);
1984 } while (sync_status == GL_TIMEOUT_EXPIRED);
1985 assert(sync_status != GL_WAIT_FAILED);
1987 ReceivedTimestamps received_ts = find_received_timestamp(frame.input_frames);
1988 static int frameno = 0;
1989 print_latency("Current mixer latency (video inputs → ready for encode):",
1990 received_ts, false, &frameno, &mixer_latency_histogram);
1992 // Release back any input frames we needed to render this frame.
1993 frame.input_frames.clear();
1997 unique_lock<mutex> lock(storage_task_queue_mutex);
1998 surf = surface_for_frame[display_frame_num];
1999 assert(surf != nullptr);
2001 uint8_t *data = reinterpret_cast<uint8_t *>(surf->y_ptr);
2002 if (global_flags.uncompressed_video_to_http) {
2003 add_packet_for_uncompressed_frame(pts, duration, data);
2004 } else if (global_flags.x264_video_to_http || global_flags.x264_video_to_disk) {
2005 x264_encoder->add_frame(pts, duration, frame.ycbcr_coefficients, data, received_ts);
2009 void QuickSyncEncoderImpl::encode_frame(QuickSyncEncoderImpl::PendingFrame frame, int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num,
2010 int frame_type, int64_t pts, int64_t dts, int64_t duration, YCbCrLumaCoefficients ycbcr_coefficients)
2012 const ReceivedTimestamps received_ts = find_received_timestamp(frame.input_frames);
2016 unique_lock<mutex> lock(storage_task_queue_mutex);
2017 surf = surface_for_frame[display_frame_num];
2018 assert(surf != nullptr);
2023 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->y_egl_image);
2024 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->cbcr_egl_image);
2025 va_status = vaReleaseBufferHandle(va_dpy, surf->surface_image.buf);
2026 CHECK_VASTATUS(va_status, "vaReleaseBufferHandle");
2028 // Upload the frame to VA-API.
2029 unsigned char *surface_p = nullptr;
2030 vaMapBuffer(va_dpy, surf->surface_image.buf, (void **)&surface_p);
2032 unsigned char *va_y_ptr = (unsigned char *)surface_p + surf->surface_image.offsets[0];
2033 memcpy_with_pitch(va_y_ptr, surf->y_ptr, frame_width, surf->surface_image.pitches[0], frame_height);
2035 unsigned char *va_cbcr_ptr = (unsigned char *)surface_p + surf->surface_image.offsets[1];
2036 memcpy_with_pitch(va_cbcr_ptr, surf->cbcr_ptr, (frame_width / 2) * sizeof(uint16_t), surf->surface_image.pitches[1], frame_height / 2);
2038 va_status = vaUnmapBuffer(va_dpy, surf->surface_image.buf);
2039 CHECK_VASTATUS(va_status, "vaUnmapBuffer");
2042 va_status = vaDestroyImage(va_dpy, surf->surface_image.image_id);
2043 CHECK_VASTATUS(va_status, "vaDestroyImage");
2045 // Schedule the frame for encoding.
2046 VASurfaceID va_surface = surf->src_surface;
2047 va_status = vaBeginPicture(va_dpy, context_id, va_surface);
2048 CHECK_VASTATUS(va_status, "vaBeginPicture");
2050 if (frame_type == FRAME_IDR) {
2051 // FIXME: If the mux wants global headers, we should not put the
2052 // SPS/PPS before each IDR frame, but rather put it into the
2053 // codec extradata (formatted differently?).
2055 // NOTE: If we change ycbcr_coefficients, it will not take effect
2056 // before the next IDR frame. This is acceptable, as it should only
2057 // happen on a mode change, which is rare.
2059 render_picture(surf, frame_type, display_frame_num, gop_start_display_frame_num);
2060 if (h264_packedheader) {
2061 render_packedsequence(ycbcr_coefficients);
2062 render_packedpicture();
2065 //render_sequence();
2066 render_picture(surf, frame_type, display_frame_num, gop_start_display_frame_num);
2068 render_slice(encoding_frame_num, display_frame_num, gop_start_display_frame_num, frame_type);
2070 va_status = vaEndPicture(va_dpy, context_id);
2071 CHECK_VASTATUS(va_status, "vaEndPicture");
2073 update_ReferenceFrames(display_frame_num, frame_type);
2075 vector<size_t> ref_display_frame_numbers;
2077 // Lock the references for this frame; otherwise, they could be
2078 // rendered to before this frame is done encoding.
2080 unique_lock<mutex> lock(storage_task_queue_mutex);
2081 for (const ReferenceFrame &frame : reference_frames) {
2082 assert(surface_for_frame.count(frame.display_number));
2083 ++surface_for_frame[frame.display_number]->refcount;
2084 ref_display_frame_numbers.push_back(frame.display_number);
2088 // so now the data is done encoding (well, async job kicked off)...
2089 // we send that to the storage thread
2091 tmp.display_order = display_frame_num;
2092 tmp.frame_type = frame_type;
2095 tmp.duration = duration;
2096 tmp.ycbcr_coefficients = ycbcr_coefficients;
2097 tmp.received_ts = received_ts;
2098 tmp.ref_display_frame_numbers = move(ref_display_frame_numbers);
2099 storage_task_enqueue(move(tmp));
2103 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)
2104 : impl(new QuickSyncEncoderImpl(filename, resource_pool, surface, va_display, width, height, oformat, x264_encoder, disk_space_estimator)) {}
2106 // Must be defined here because unique_ptr<> destructor needs to know the impl.
2107 QuickSyncEncoder::~QuickSyncEncoder() {}
2109 void QuickSyncEncoder::add_audio(int64_t pts, vector<float> audio)
2111 impl->add_audio(pts, audio);
2114 bool QuickSyncEncoder::is_zerocopy() const
2116 return impl->is_zerocopy();
2119 bool QuickSyncEncoder::begin_frame(int64_t pts, int64_t duration, YCbCrLumaCoefficients ycbcr_coefficients, const vector<RefCountedFrame> &input_frames, GLuint *y_tex, GLuint *cbcr_tex)
2121 return impl->begin_frame(pts, duration, ycbcr_coefficients, input_frames, y_tex, cbcr_tex);
2124 RefCountedGLsync QuickSyncEncoder::end_frame()
2126 return impl->end_frame();
2129 void QuickSyncEncoder::shutdown()
2134 void QuickSyncEncoder::close_file()
2139 void QuickSyncEncoder::set_stream_mux(Mux *mux)
2141 impl->set_stream_mux(mux);
2144 int64_t QuickSyncEncoder::global_delay() const {
2145 return impl->global_delay();