1 #include "quicksync_encoder.h"
3 #include <movit/resource_pool.h> // Must be above the Xlib includes.
4 #include <movit/util.h>
6 #include <EGL/eglplatform.h>
16 #include <va/va_drm.h>
17 #include <va/va_drmcommon.h>
18 #include <va/va_enc_h264.h>
19 #include <va/va_x11.h>
22 #include <condition_variable>
37 #include <libavcodec/avcodec.h>
38 #include <libavformat/avio.h>
39 #include <libavutil/error.h>
40 #include <libdrm/drm_fourcc.h>
44 #include "audio_encoder.h"
47 #include "disk_space_estimator.h"
48 #include "ffmpeg_raii.h"
51 #include "print_latency.h"
52 #include "quicksync_encoder_impl.h"
53 #include "ref_counted_frame.h"
55 #include "x264_encoder.h"
58 using namespace std::chrono;
59 using namespace std::placeholders;
64 #define CHECK_VASTATUS(va_status, func) \
65 if (va_status != VA_STATUS_SUCCESS) { \
66 fprintf(stderr, "%s:%d (%s) failed with %d\n", __func__, __LINE__, func, va_status); \
70 #define BUFFER_OFFSET(i) ((char *)NULL + (i))
72 //#include "loadsurface.h"
74 #define NAL_REF_IDC_NONE 0
75 #define NAL_REF_IDC_LOW 1
76 #define NAL_REF_IDC_MEDIUM 2
77 #define NAL_REF_IDC_HIGH 3
85 #define SLICE_TYPE_P 0
86 #define SLICE_TYPE_B 1
87 #define SLICE_TYPE_I 2
88 #define IS_P_SLICE(type) (SLICE_TYPE_P == (type))
89 #define IS_B_SLICE(type) (SLICE_TYPE_B == (type))
90 #define IS_I_SLICE(type) (SLICE_TYPE_I == (type))
93 #define ENTROPY_MODE_CAVLC 0
94 #define ENTROPY_MODE_CABAC 1
96 #define PROFILE_IDC_BASELINE 66
97 #define PROFILE_IDC_MAIN 77
98 #define PROFILE_IDC_HIGH 100
100 #define BITSTREAM_ALLOCATE_STEPPING 4096
102 static constexpr unsigned int MaxFrameNum = (2<<16);
103 static constexpr unsigned int MaxPicOrderCntLsb = (2<<8);
104 static constexpr unsigned int Log2MaxFrameNum = 16;
105 static constexpr unsigned int Log2MaxPicOrderCntLsb = 8;
106 static constexpr int rc_default_modes[] = { // Priority list of modes.
109 VA_RC_VBR_CONSTRAINED,
115 /* thread to save coded data */
116 #define SRC_SURFACE_FREE 0
117 #define SRC_SURFACE_IN_ENCODING 1
121 FrameReorderer::FrameReorderer(unsigned queue_length, int width, int height)
122 : queue_length(queue_length), width(width), height(height)
124 for (unsigned i = 0; i < queue_length; ++i) {
125 owner.emplace_back(new uint8_t[width * height * 2]);
126 freelist.push(owner.back().get());
130 FrameReorderer::Frame FrameReorderer::reorder_frame(int64_t pts, int64_t duration, uint8_t *data, const ReceivedTimestamps &received_ts)
132 if (queue_length == 0) {
133 return Frame{pts, duration, data, received_ts};
136 assert(!freelist.empty());
137 uint8_t *storage = freelist.top();
139 memcpy(storage, data, width * height * 2);
140 frames.push(Frame{pts, duration, storage, received_ts});
142 if (frames.size() >= queue_length) {
143 return get_first_frame();
145 return Frame{-1, -1, nullptr, steady_clock::time_point::min(), steady_clock::time_point::min()};
149 FrameReorderer::Frame FrameReorderer::get_first_frame()
151 assert(!frames.empty());
152 Frame storage = frames.top();
154 freelist.push(storage.data);
159 // Supposedly vaRenderPicture() is supposed to destroy the buffer implicitly,
160 // but if we don't delete it here, we get leaks. The GStreamer implementation
162 static void render_picture_and_delete(VADisplay dpy, VAContextID context, VABufferID *buffers, int num_buffers)
164 VAStatus va_status = vaRenderPicture(dpy, context, buffers, num_buffers);
165 CHECK_VASTATUS(va_status, "vaRenderPicture");
167 for (int i = 0; i < num_buffers; ++i) {
168 va_status = vaDestroyBuffer(dpy, buffers[i]);
169 CHECK_VASTATUS(va_status, "vaDestroyBuffer");
174 va_swap32(unsigned int val)
176 unsigned char *pval = (unsigned char *)&val;
178 return ((pval[0] << 24) |
185 bitstream_start(bitstream *bs)
187 bs->max_size_in_dword = BITSTREAM_ALLOCATE_STEPPING;
188 bs->buffer = (unsigned int *)calloc(bs->max_size_in_dword * sizeof(int), 1);
193 bitstream_end(bitstream *bs)
195 int pos = (bs->bit_offset >> 5);
196 int bit_offset = (bs->bit_offset & 0x1f);
197 int bit_left = 32 - bit_offset;
200 bs->buffer[pos] = va_swap32((bs->buffer[pos] << bit_left));
205 bitstream_put_ui(bitstream *bs, unsigned int val, int size_in_bits)
207 int pos = (bs->bit_offset >> 5);
208 int bit_offset = (bs->bit_offset & 0x1f);
209 int bit_left = 32 - bit_offset;
214 bs->bit_offset += size_in_bits;
216 if (bit_left > size_in_bits) {
217 bs->buffer[pos] = (bs->buffer[pos] << size_in_bits | val);
219 size_in_bits -= bit_left;
220 if (bit_left >= 32) {
221 bs->buffer[pos] = (val >> size_in_bits);
223 bs->buffer[pos] = (bs->buffer[pos] << bit_left) | (val >> size_in_bits);
225 bs->buffer[pos] = va_swap32(bs->buffer[pos]);
227 if (pos + 1 == bs->max_size_in_dword) {
228 bs->max_size_in_dword += BITSTREAM_ALLOCATE_STEPPING;
229 bs->buffer = (unsigned int *)realloc(bs->buffer, bs->max_size_in_dword * sizeof(unsigned int));
232 bs->buffer[pos + 1] = val;
237 bitstream_put_ue(bitstream *bs, unsigned int val)
239 int size_in_bits = 0;
247 bitstream_put_ui(bs, 0, size_in_bits - 1); // leading zero
248 bitstream_put_ui(bs, val, size_in_bits);
252 bitstream_put_se(bitstream *bs, int val)
254 unsigned int new_val;
259 new_val = 2 * val - 1;
261 bitstream_put_ue(bs, new_val);
265 bitstream_byte_aligning(bitstream *bs, int bit)
267 int bit_offset = (bs->bit_offset & 0x7);
268 int bit_left = 8 - bit_offset;
274 assert(bit == 0 || bit == 1);
277 new_val = (1 << bit_left) - 1;
281 bitstream_put_ui(bs, new_val, bit_left);
285 rbsp_trailing_bits(bitstream *bs)
287 bitstream_put_ui(bs, 1, 1);
288 bitstream_byte_aligning(bs, 0);
291 static void nal_start_code_prefix(bitstream *bs)
293 bitstream_put_ui(bs, 0x00000001, 32);
296 static void nal_header(bitstream *bs, int nal_ref_idc, int nal_unit_type)
298 bitstream_put_ui(bs, 0, 1); /* forbidden_zero_bit: 0 */
299 bitstream_put_ui(bs, nal_ref_idc, 2);
300 bitstream_put_ui(bs, nal_unit_type, 5);
303 void QuickSyncEncoderImpl::sps_rbsp(bitstream *bs)
305 int profile_idc = PROFILE_IDC_BASELINE;
307 if (h264_profile == VAProfileH264High)
308 profile_idc = PROFILE_IDC_HIGH;
309 else if (h264_profile == VAProfileH264Main)
310 profile_idc = PROFILE_IDC_MAIN;
312 bitstream_put_ui(bs, profile_idc, 8); /* profile_idc */
313 bitstream_put_ui(bs, !!(constraint_set_flag & 1), 1); /* constraint_set0_flag */
314 bitstream_put_ui(bs, !!(constraint_set_flag & 2), 1); /* constraint_set1_flag */
315 bitstream_put_ui(bs, !!(constraint_set_flag & 4), 1); /* constraint_set2_flag */
316 bitstream_put_ui(bs, !!(constraint_set_flag & 8), 1); /* constraint_set3_flag */
317 bitstream_put_ui(bs, 0, 4); /* reserved_zero_4bits */
318 bitstream_put_ui(bs, seq_param.level_idc, 8); /* level_idc */
319 bitstream_put_ue(bs, seq_param.seq_parameter_set_id); /* seq_parameter_set_id */
321 if ( profile_idc == PROFILE_IDC_HIGH) {
322 bitstream_put_ue(bs, 1); /* chroma_format_idc = 1, 4:2:0 */
323 bitstream_put_ue(bs, 0); /* bit_depth_luma_minus8 */
324 bitstream_put_ue(bs, 0); /* bit_depth_chroma_minus8 */
325 bitstream_put_ui(bs, 0, 1); /* qpprime_y_zero_transform_bypass_flag */
326 bitstream_put_ui(bs, 0, 1); /* seq_scaling_matrix_present_flag */
329 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_frame_num_minus4); /* log2_max_frame_num_minus4 */
330 bitstream_put_ue(bs, seq_param.seq_fields.bits.pic_order_cnt_type); /* pic_order_cnt_type */
332 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0)
333 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4); /* log2_max_pic_order_cnt_lsb_minus4 */
338 bitstream_put_ue(bs, seq_param.max_num_ref_frames); /* num_ref_frames */
339 bitstream_put_ui(bs, 0, 1); /* gaps_in_frame_num_value_allowed_flag */
341 bitstream_put_ue(bs, seq_param.picture_width_in_mbs - 1); /* pic_width_in_mbs_minus1 */
342 bitstream_put_ue(bs, seq_param.picture_height_in_mbs - 1); /* pic_height_in_map_units_minus1 */
343 bitstream_put_ui(bs, seq_param.seq_fields.bits.frame_mbs_only_flag, 1); /* frame_mbs_only_flag */
345 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
349 bitstream_put_ui(bs, seq_param.seq_fields.bits.direct_8x8_inference_flag, 1); /* direct_8x8_inference_flag */
350 bitstream_put_ui(bs, seq_param.frame_cropping_flag, 1); /* frame_cropping_flag */
352 if (seq_param.frame_cropping_flag) {
353 bitstream_put_ue(bs, seq_param.frame_crop_left_offset); /* frame_crop_left_offset */
354 bitstream_put_ue(bs, seq_param.frame_crop_right_offset); /* frame_crop_right_offset */
355 bitstream_put_ue(bs, seq_param.frame_crop_top_offset); /* frame_crop_top_offset */
356 bitstream_put_ue(bs, seq_param.frame_crop_bottom_offset); /* frame_crop_bottom_offset */
359 //if ( frame_bit_rate < 0 ) { //TODO EW: the vui header isn't correct
361 bitstream_put_ui(bs, 0, 1); /* vui_parameters_present_flag */
363 bitstream_put_ui(bs, 1, 1); /* vui_parameters_present_flag */
364 bitstream_put_ui(bs, 0, 1); /* aspect_ratio_info_present_flag */
365 bitstream_put_ui(bs, 0, 1); /* overscan_info_present_flag */
366 bitstream_put_ui(bs, 1, 1); /* video_signal_type_present_flag */
368 bitstream_put_ui(bs, 5, 3); /* video_format (5 = Unspecified) */
369 bitstream_put_ui(bs, 0, 1); /* video_full_range_flag */
370 bitstream_put_ui(bs, 1, 1); /* colour_description_present_flag */
372 bitstream_put_ui(bs, 1, 8); /* colour_primaries (1 = BT.709) */
373 bitstream_put_ui(bs, 2, 8); /* transfer_characteristics (2 = unspecified, since we use sRGB) */
374 bitstream_put_ui(bs, 6, 8); /* matrix_coefficients (6 = BT.601/SMPTE 170M) */
377 bitstream_put_ui(bs, 0, 1); /* chroma_loc_info_present_flag */
378 bitstream_put_ui(bs, 1, 1); /* timing_info_present_flag */
380 bitstream_put_ui(bs, 1, 32); // FPS
381 bitstream_put_ui(bs, TIMEBASE * 2, 32); // FPS
382 bitstream_put_ui(bs, 1, 1);
384 bitstream_put_ui(bs, 1, 1); /* nal_hrd_parameters_present_flag */
387 bitstream_put_ue(bs, 0); /* cpb_cnt_minus1 */
388 bitstream_put_ui(bs, 4, 4); /* bit_rate_scale */
389 bitstream_put_ui(bs, 6, 4); /* cpb_size_scale */
391 bitstream_put_ue(bs, frame_bitrate - 1); /* bit_rate_value_minus1[0] */
392 bitstream_put_ue(bs, frame_bitrate*8 - 1); /* cpb_size_value_minus1[0] */
393 bitstream_put_ui(bs, 1, 1); /* cbr_flag[0] */
395 bitstream_put_ui(bs, 23, 5); /* initial_cpb_removal_delay_length_minus1 */
396 bitstream_put_ui(bs, 23, 5); /* cpb_removal_delay_length_minus1 */
397 bitstream_put_ui(bs, 23, 5); /* dpb_output_delay_length_minus1 */
398 bitstream_put_ui(bs, 23, 5); /* time_offset_length */
400 bitstream_put_ui(bs, 0, 1); /* vcl_hrd_parameters_present_flag */
401 bitstream_put_ui(bs, 0, 1); /* low_delay_hrd_flag */
403 bitstream_put_ui(bs, 0, 1); /* pic_struct_present_flag */
404 bitstream_put_ui(bs, 0, 1); /* bitstream_restriction_flag */
407 rbsp_trailing_bits(bs); /* rbsp_trailing_bits */
411 void QuickSyncEncoderImpl::pps_rbsp(bitstream *bs)
413 bitstream_put_ue(bs, pic_param.pic_parameter_set_id); /* pic_parameter_set_id */
414 bitstream_put_ue(bs, pic_param.seq_parameter_set_id); /* seq_parameter_set_id */
416 bitstream_put_ui(bs, pic_param.pic_fields.bits.entropy_coding_mode_flag, 1); /* entropy_coding_mode_flag */
418 bitstream_put_ui(bs, 0, 1); /* pic_order_present_flag: 0 */
420 bitstream_put_ue(bs, 0); /* num_slice_groups_minus1 */
422 bitstream_put_ue(bs, pic_param.num_ref_idx_l0_active_minus1); /* num_ref_idx_l0_active_minus1 */
423 bitstream_put_ue(bs, pic_param.num_ref_idx_l1_active_minus1); /* num_ref_idx_l1_active_minus1 1 */
425 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_pred_flag, 1); /* weighted_pred_flag: 0 */
426 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_bipred_idc, 2); /* weighted_bipred_idc: 0 */
428 bitstream_put_se(bs, pic_param.pic_init_qp - 26); /* pic_init_qp_minus26 */
429 bitstream_put_se(bs, 0); /* pic_init_qs_minus26 */
430 bitstream_put_se(bs, 0); /* chroma_qp_index_offset */
432 bitstream_put_ui(bs, pic_param.pic_fields.bits.deblocking_filter_control_present_flag, 1); /* deblocking_filter_control_present_flag */
433 bitstream_put_ui(bs, 0, 1); /* constrained_intra_pred_flag */
434 bitstream_put_ui(bs, 0, 1); /* redundant_pic_cnt_present_flag */
437 bitstream_put_ui(bs, pic_param.pic_fields.bits.transform_8x8_mode_flag, 1); /*transform_8x8_mode_flag */
438 bitstream_put_ui(bs, 0, 1); /* pic_scaling_matrix_present_flag */
439 bitstream_put_se(bs, pic_param.second_chroma_qp_index_offset ); /*second_chroma_qp_index_offset */
441 rbsp_trailing_bits(bs);
444 void QuickSyncEncoderImpl::slice_header(bitstream *bs)
446 int first_mb_in_slice = slice_param.macroblock_address;
448 bitstream_put_ue(bs, first_mb_in_slice); /* first_mb_in_slice: 0 */
449 bitstream_put_ue(bs, slice_param.slice_type); /* slice_type */
450 bitstream_put_ue(bs, slice_param.pic_parameter_set_id); /* pic_parameter_set_id: 0 */
451 bitstream_put_ui(bs, pic_param.frame_num, seq_param.seq_fields.bits.log2_max_frame_num_minus4 + 4); /* frame_num */
453 /* frame_mbs_only_flag == 1 */
454 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
459 if (pic_param.pic_fields.bits.idr_pic_flag)
460 bitstream_put_ue(bs, slice_param.idr_pic_id); /* idr_pic_id: 0 */
462 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0) {
463 bitstream_put_ui(bs, pic_param.CurrPic.TopFieldOrderCnt, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 + 4);
464 /* pic_order_present_flag == 0 */
470 /* redundant_pic_cnt_present_flag == 0 */
472 if (IS_P_SLICE(slice_param.slice_type)) {
473 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
475 if (slice_param.num_ref_idx_active_override_flag)
476 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
478 /* ref_pic_list_reordering */
479 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
480 } else if (IS_B_SLICE(slice_param.slice_type)) {
481 bitstream_put_ui(bs, slice_param.direct_spatial_mv_pred_flag, 1); /* direct_spatial_mv_pred: 1 */
483 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
485 if (slice_param.num_ref_idx_active_override_flag) {
486 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
487 bitstream_put_ue(bs, slice_param.num_ref_idx_l1_active_minus1);
490 /* ref_pic_list_reordering */
491 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
492 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l1: 0 */
495 if ((pic_param.pic_fields.bits.weighted_pred_flag &&
496 IS_P_SLICE(slice_param.slice_type)) ||
497 ((pic_param.pic_fields.bits.weighted_bipred_idc == 1) &&
498 IS_B_SLICE(slice_param.slice_type))) {
499 /* FIXME: fill weight/offset table */
503 /* dec_ref_pic_marking */
504 if (pic_param.pic_fields.bits.reference_pic_flag) { /* nal_ref_idc != 0 */
505 unsigned char no_output_of_prior_pics_flag = 0;
506 unsigned char long_term_reference_flag = 0;
507 unsigned char adaptive_ref_pic_marking_mode_flag = 0;
509 if (pic_param.pic_fields.bits.idr_pic_flag) {
510 bitstream_put_ui(bs, no_output_of_prior_pics_flag, 1); /* no_output_of_prior_pics_flag: 0 */
511 bitstream_put_ui(bs, long_term_reference_flag, 1); /* long_term_reference_flag: 0 */
513 bitstream_put_ui(bs, adaptive_ref_pic_marking_mode_flag, 1); /* adaptive_ref_pic_marking_mode_flag: 0 */
517 if (pic_param.pic_fields.bits.entropy_coding_mode_flag &&
518 !IS_I_SLICE(slice_param.slice_type))
519 bitstream_put_ue(bs, slice_param.cabac_init_idc); /* cabac_init_idc: 0 */
521 bitstream_put_se(bs, slice_param.slice_qp_delta); /* slice_qp_delta: 0 */
523 /* ignore for SP/SI */
525 if (pic_param.pic_fields.bits.deblocking_filter_control_present_flag) {
526 bitstream_put_ue(bs, slice_param.disable_deblocking_filter_idc); /* disable_deblocking_filter_idc: 0 */
528 if (slice_param.disable_deblocking_filter_idc != 1) {
529 bitstream_put_se(bs, slice_param.slice_alpha_c0_offset_div2); /* slice_alpha_c0_offset_div2: 2 */
530 bitstream_put_se(bs, slice_param.slice_beta_offset_div2); /* slice_beta_offset_div2: 2 */
534 if (pic_param.pic_fields.bits.entropy_coding_mode_flag) {
535 bitstream_byte_aligning(bs, 1);
539 int QuickSyncEncoderImpl::build_packed_pic_buffer(unsigned char **header_buffer)
543 bitstream_start(&bs);
544 nal_start_code_prefix(&bs);
545 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_PPS);
549 *header_buffer = (unsigned char *)bs.buffer;
550 return bs.bit_offset;
554 QuickSyncEncoderImpl::build_packed_seq_buffer(unsigned char **header_buffer)
558 bitstream_start(&bs);
559 nal_start_code_prefix(&bs);
560 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_SPS);
564 *header_buffer = (unsigned char *)bs.buffer;
565 return bs.bit_offset;
568 int QuickSyncEncoderImpl::build_packed_slice_buffer(unsigned char **header_buffer)
571 int is_idr = !!pic_param.pic_fields.bits.idr_pic_flag;
572 int is_ref = !!pic_param.pic_fields.bits.reference_pic_flag;
574 bitstream_start(&bs);
575 nal_start_code_prefix(&bs);
577 if (IS_I_SLICE(slice_param.slice_type)) {
578 nal_header(&bs, NAL_REF_IDC_HIGH, is_idr ? NAL_IDR : NAL_NON_IDR);
579 } else if (IS_P_SLICE(slice_param.slice_type)) {
580 nal_header(&bs, NAL_REF_IDC_MEDIUM, NAL_NON_IDR);
582 assert(IS_B_SLICE(slice_param.slice_type));
583 nal_header(&bs, is_ref ? NAL_REF_IDC_LOW : NAL_REF_IDC_NONE, NAL_NON_IDR);
589 *header_buffer = (unsigned char *)bs.buffer;
590 return bs.bit_offset;
595 Assume frame sequence is: Frame#0, #1, #2, ..., #M, ..., #X, ... (encoding order)
596 1) period between Frame #X and Frame #N = #X - #N
597 2) 0 means infinite for intra_period/intra_idr_period, and 0 is invalid for ip_period
598 3) intra_idr_period % intra_period (intra_period > 0) and intra_period % ip_period must be 0
599 4) intra_period and intra_idr_period take precedence over ip_period
600 5) if ip_period > 1, intra_period and intra_idr_period are not the strict periods
601 of I/IDR frames, see bellow examples
602 -------------------------------------------------------------------
603 intra_period intra_idr_period ip_period frame sequence (intra_period/intra_idr_period/ip_period)
604 0 ignored 1 IDRPPPPPPP ... (No IDR/I any more)
605 0 ignored >=2 IDR(PBB)(PBB)... (No IDR/I any more)
606 1 0 ignored IDRIIIIIII... (No IDR any more)
607 1 1 ignored IDR IDR IDR IDR...
608 1 >=2 ignored IDRII IDRII IDR... (1/3/ignore)
609 >=2 0 1 IDRPPP IPPP I... (3/0/1)
610 >=2 0 >=2 IDR(PBB)(PBB)(IBB) (6/0/3)
611 (PBB)(IBB)(PBB)(IBB)...
612 >=2 >=2 1 IDRPPPPP IPPPPP IPPPPP (6/18/1)
613 IDRPPPPP IPPPPP IPPPPP...
614 >=2 >=2 >=2 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)} (6/18/3)
615 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)}...
616 {IDR(PBB)(PBB)(IBB)(PBB)} (6/12/3)
617 {IDR(PBB)(PBB)(IBB)(PBB)}...
618 {IDR(PBB)(PBB)} (6/6/3)
622 // General pts/dts strategy:
624 // Getting pts and dts right with variable frame rate (VFR) and B-frames can be a
625 // bit tricky. We assume first of all that the frame rate never goes _above_
626 // MAX_FPS, which gives us a frame period N. The decoder can always decode
627 // in at least this speed, as long at dts <= pts (the frame is not attempted
628 // presented before it is decoded). Furthermore, we never have longer chains of
629 // B-frames than a fixed constant C. (In a B-frame chain, we say that the base
630 // I/P-frame has order O=0, the B-frame depending on it directly has order O=1,
631 // etc. The last frame in the chain, which no B-frames depend on, is the “tip”
632 // frame, with an order O <= C.)
634 // Many strategies are possible, but we establish these rules:
636 // - Tip frames have dts = pts - (C-O)*N.
637 // - Non-tip frames have dts = dts_last + N.
639 // An example, with C=2 and N=10 and the data flow showed with arrows:
642 // pts: 30 40 50 60 70 80
644 // dts: 10 30 20 60 50←40
649 // To show that this works fine also with irregular spacings, let's say that
650 // the third frame is delayed a bit (something earlier was dropped). Now the
651 // situation looks like this:
654 // pts: 30 40 80 90 100 110
656 // dts: 10 30 20 90 50←40
661 // The resetting on every tip frame makes sure dts never ends up lagging a lot
662 // behind pts, and the subtraction of (C-O)*N makes sure pts <= dts.
664 // In the output of this function, if <dts_lag> is >= 0, it means to reset the
665 // dts from the current pts minus <dts_lag>, while if it's -1, the frame is not
666 // a tip frame and should be given a dts based on the previous one.
671 void encoding2display_order(
672 int encoding_order, int intra_period,
673 int intra_idr_period, int ip_period,
674 int *displaying_order,
675 int *frame_type, int *pts_lag)
677 int encoding_order_gop = 0;
681 if (intra_period == 1) { /* all are I/IDR frames */
682 *displaying_order = encoding_order;
683 if (intra_idr_period == 0)
684 *frame_type = (encoding_order == 0)?FRAME_IDR:FRAME_I;
686 *frame_type = (encoding_order % intra_idr_period == 0)?FRAME_IDR:FRAME_I;
690 if (intra_period == 0)
691 intra_idr_period = 0;
693 if (ip_period == 1) {
694 // No B-frames, sequence is like IDR PPPPP IPPPPP.
695 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % intra_idr_period);
696 *displaying_order = encoding_order;
698 if (encoding_order_gop == 0) { /* the first frame */
699 *frame_type = FRAME_IDR;
700 } else if (intra_period != 0 && /* have I frames */
701 encoding_order_gop >= 2 &&
702 (encoding_order_gop % intra_period == 0)) {
703 *frame_type = FRAME_I;
705 *frame_type = FRAME_P;
710 // We have B-frames. Sequence is like IDR (PBB)(PBB)(IBB)(PBB).
711 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % (intra_idr_period + 1));
712 *pts_lag = -1; // Most frames are not tip frames.
714 if (encoding_order_gop == 0) { /* the first frame */
715 *frame_type = FRAME_IDR;
716 *displaying_order = encoding_order;
717 // IDR frames are a special case; I honestly can't find the logic behind
718 // why this is the right thing, but it seems to line up nicely in practice :-)
719 *pts_lag = TIMEBASE / MAX_FPS;
720 } else if (((encoding_order_gop - 1) % ip_period) != 0) { /* B frames */
721 *frame_type = FRAME_B;
722 *displaying_order = encoding_order - 1;
723 if ((encoding_order_gop % ip_period) == 0) {
724 *pts_lag = 0; // Last B-frame.
726 } else if (intra_period != 0 && /* have I frames */
727 encoding_order_gop >= 2 &&
728 ((encoding_order_gop - 1) / ip_period % (intra_period / ip_period)) == 0) {
729 *frame_type = FRAME_I;
730 *displaying_order = encoding_order + ip_period - 1;
732 *frame_type = FRAME_P;
733 *displaying_order = encoding_order + ip_period - 1;
738 static const char *rc_to_string(int rc_mode)
751 case VA_RC_VBR_CONSTRAINED:
752 return "VBR_CONSTRAINED";
758 void QuickSyncEncoderImpl::enable_zerocopy_if_possible()
760 if (global_flags.uncompressed_video_to_http) {
761 fprintf(stderr, "Disabling zerocopy H.264 encoding due to --http-uncompressed-video.\n");
762 use_zerocopy = false;
763 } else if (global_flags.x264_video_to_http) {
764 fprintf(stderr, "Disabling zerocopy H.264 encoding due to --http-x264-video.\n");
765 use_zerocopy = false;
771 VADisplay QuickSyncEncoderImpl::va_open_display(const string &va_display)
773 if (va_display.empty()) {
774 x11_display = XOpenDisplay(NULL);
776 fprintf(stderr, "error: can't connect to X server!\n");
779 enable_zerocopy_if_possible();
780 return vaGetDisplay(x11_display);
781 } else if (va_display[0] != '/') {
782 x11_display = XOpenDisplay(va_display.c_str());
784 fprintf(stderr, "error: can't connect to X server!\n");
787 enable_zerocopy_if_possible();
788 return vaGetDisplay(x11_display);
790 drm_fd = open(va_display.c_str(), O_RDWR);
792 perror(va_display.c_str());
795 use_zerocopy = false;
796 return vaGetDisplayDRM(drm_fd);
800 void QuickSyncEncoderImpl::va_close_display(VADisplay va_dpy)
803 XCloseDisplay(x11_display);
804 x11_display = nullptr;
811 int QuickSyncEncoderImpl::init_va(const string &va_display)
813 VAProfile profile_list[]={VAProfileH264High, VAProfileH264Main, VAProfileH264Baseline, VAProfileH264ConstrainedBaseline};
814 VAEntrypoint *entrypoints;
815 int num_entrypoints, slice_entrypoint;
816 int support_encode = 0;
817 int major_ver, minor_ver;
821 va_dpy = va_open_display(va_display);
822 va_status = vaInitialize(va_dpy, &major_ver, &minor_ver);
823 CHECK_VASTATUS(va_status, "vaInitialize");
825 num_entrypoints = vaMaxNumEntrypoints(va_dpy);
826 entrypoints = (VAEntrypoint *)malloc(num_entrypoints * sizeof(*entrypoints));
828 fprintf(stderr, "error: failed to initialize VA entrypoints array\n");
832 /* use the highest profile */
833 for (i = 0; i < sizeof(profile_list)/sizeof(profile_list[0]); i++) {
834 if ((h264_profile != ~0) && h264_profile != profile_list[i])
837 h264_profile = profile_list[i];
838 vaQueryConfigEntrypoints(va_dpy, h264_profile, entrypoints, &num_entrypoints);
839 for (slice_entrypoint = 0; slice_entrypoint < num_entrypoints; slice_entrypoint++) {
840 if (entrypoints[slice_entrypoint] == VAEntrypointEncSlice) {
845 if (support_encode == 1)
849 if (support_encode == 0) {
850 printf("Can't find VAEntrypointEncSlice for H264 profiles. If you are using a non-Intel GPU\n");
851 printf("but have one in your system, try launching Nageru with --va-display /dev/dri/renderD128\n");
852 printf("to use VA-API against DRM instead of X11.\n");
855 switch (h264_profile) {
856 case VAProfileH264Baseline:
858 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
859 h264_entropy_mode = 0;
861 case VAProfileH264ConstrainedBaseline:
862 constraint_set_flag |= (1 << 0 | 1 << 1); /* Annex A.2.2 */
866 case VAProfileH264Main:
867 constraint_set_flag |= (1 << 1); /* Annex A.2.2 */
870 case VAProfileH264High:
871 constraint_set_flag |= (1 << 3); /* Annex A.2.4 */
874 h264_profile = VAProfileH264Baseline;
876 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
881 VAConfigAttrib attrib[VAConfigAttribTypeMax];
883 /* find out the format for the render target, and rate control mode */
884 for (i = 0; i < VAConfigAttribTypeMax; i++)
885 attrib[i].type = (VAConfigAttribType)i;
887 va_status = vaGetConfigAttributes(va_dpy, h264_profile, VAEntrypointEncSlice,
888 &attrib[0], VAConfigAttribTypeMax);
889 CHECK_VASTATUS(va_status, "vaGetConfigAttributes");
890 /* check the interested configattrib */
891 if ((attrib[VAConfigAttribRTFormat].value & VA_RT_FORMAT_YUV420) == 0) {
892 printf("Not find desired YUV420 RT format\n");
895 config_attrib[config_attrib_num].type = VAConfigAttribRTFormat;
896 config_attrib[config_attrib_num].value = VA_RT_FORMAT_YUV420;
900 if (attrib[VAConfigAttribRateControl].value != VA_ATTRIB_NOT_SUPPORTED) {
901 int tmp = attrib[VAConfigAttribRateControl].value;
903 if (rc_mode == -1 || !(rc_mode & tmp)) {
905 printf("Warning: Don't support the specified RateControl mode: %s!!!, switch to ", rc_to_string(rc_mode));
908 for (i = 0; i < sizeof(rc_default_modes) / sizeof(rc_default_modes[0]); i++) {
909 if (rc_default_modes[i] & tmp) {
910 rc_mode = rc_default_modes[i];
916 config_attrib[config_attrib_num].type = VAConfigAttribRateControl;
917 config_attrib[config_attrib_num].value = rc_mode;
922 if (attrib[VAConfigAttribEncPackedHeaders].value != VA_ATTRIB_NOT_SUPPORTED) {
923 int tmp = attrib[VAConfigAttribEncPackedHeaders].value;
925 h264_packedheader = 1;
926 config_attrib[config_attrib_num].type = VAConfigAttribEncPackedHeaders;
927 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
929 if (tmp & VA_ENC_PACKED_HEADER_SEQUENCE) {
930 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SEQUENCE;
933 if (tmp & VA_ENC_PACKED_HEADER_PICTURE) {
934 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_PICTURE;
937 if (tmp & VA_ENC_PACKED_HEADER_SLICE) {
938 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SLICE;
941 if (tmp & VA_ENC_PACKED_HEADER_MISC) {
942 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_MISC;
945 enc_packed_header_idx = config_attrib_num;
949 if (attrib[VAConfigAttribEncInterlaced].value != VA_ATTRIB_NOT_SUPPORTED) {
950 config_attrib[config_attrib_num].type = VAConfigAttribEncInterlaced;
951 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
955 if (attrib[VAConfigAttribEncMaxRefFrames].value != VA_ATTRIB_NOT_SUPPORTED) {
956 h264_maxref = attrib[VAConfigAttribEncMaxRefFrames].value;
963 int QuickSyncEncoderImpl::setup_encode()
966 VASurfaceID *tmp_surfaceid;
967 int codedbuf_size, i;
968 VASurfaceID src_surface[SURFACE_NUM];
969 VASurfaceID ref_surface[SURFACE_NUM];
971 va_status = vaCreateConfig(va_dpy, h264_profile, VAEntrypointEncSlice,
972 &config_attrib[0], config_attrib_num, &config_id);
973 CHECK_VASTATUS(va_status, "vaCreateConfig");
975 /* create source surfaces */
976 va_status = vaCreateSurfaces(va_dpy,
977 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
978 &src_surface[0], SURFACE_NUM,
980 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
982 /* create reference surfaces */
983 va_status = vaCreateSurfaces(va_dpy,
984 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
985 &ref_surface[0], SURFACE_NUM,
987 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
989 tmp_surfaceid = (VASurfaceID *)calloc(2 * SURFACE_NUM, sizeof(VASurfaceID));
990 memcpy(tmp_surfaceid, src_surface, SURFACE_NUM * sizeof(VASurfaceID));
991 memcpy(tmp_surfaceid + SURFACE_NUM, ref_surface, SURFACE_NUM * sizeof(VASurfaceID));
993 /* Create a context for this encode pipe */
994 va_status = vaCreateContext(va_dpy, config_id,
995 frame_width_mbaligned, frame_height_mbaligned,
997 tmp_surfaceid, 2 * SURFACE_NUM,
999 CHECK_VASTATUS(va_status, "vaCreateContext");
1000 free(tmp_surfaceid);
1002 codedbuf_size = (frame_width_mbaligned * frame_height_mbaligned * 400) / (16*16);
1004 for (i = 0; i < SURFACE_NUM; i++) {
1005 /* create coded buffer once for all
1006 * other VA buffers which won't be used again after vaRenderPicture.
1007 * so APP can always vaCreateBuffer for every frame
1008 * but coded buffer need to be mapped and accessed after vaRenderPicture/vaEndPicture
1009 * so VA won't maintain the coded buffer
1011 va_status = vaCreateBuffer(va_dpy, context_id, VAEncCodedBufferType,
1012 codedbuf_size, 1, NULL, &gl_surfaces[i].coded_buf);
1013 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1016 /* create OpenGL objects */
1017 //glGenFramebuffers(SURFACE_NUM, fbos);
1019 for (i = 0; i < SURFACE_NUM; i++) {
1021 gl_surfaces[i].y_tex = resource_pool->create_2d_texture(GL_R8, 1, 1);
1022 gl_surfaces[i].cbcr_tex = resource_pool->create_2d_texture(GL_RG8, 1, 1);
1024 gl_surfaces[i].y_tex = resource_pool->create_2d_texture(GL_R8, frame_width, frame_height);
1025 gl_surfaces[i].cbcr_tex = resource_pool->create_2d_texture(GL_RG8, frame_width / 2, frame_height / 2);
1027 // Generate a PBO to read into. It doesn't necessarily fit 1:1 with the VA-API
1028 // buffers, due to potentially differing pitch.
1029 glGenBuffers(1, &gl_surfaces[i].pbo);
1030 glBindBuffer(GL_PIXEL_PACK_BUFFER, gl_surfaces[i].pbo);
1031 glBufferStorage(GL_PIXEL_PACK_BUFFER, frame_width * frame_height * 2, nullptr, GL_MAP_READ_BIT | GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT);
1032 uint8_t *ptr = (uint8_t *)glMapBufferRange(GL_PIXEL_PACK_BUFFER, 0, frame_width * frame_height * 2, GL_MAP_READ_BIT | GL_MAP_PERSISTENT_BIT);
1033 gl_surfaces[i].y_offset = 0;
1034 gl_surfaces[i].cbcr_offset = frame_width * frame_height;
1035 gl_surfaces[i].y_ptr = ptr + gl_surfaces[i].y_offset;
1036 gl_surfaces[i].cbcr_ptr = ptr + gl_surfaces[i].cbcr_offset;
1037 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1041 for (i = 0; i < SURFACE_NUM; i++) {
1042 gl_surfaces[i].src_surface = src_surface[i];
1043 gl_surfaces[i].ref_surface = ref_surface[i];
1049 // Given a list like 1 9 3 0 2 8 4 and a pivot element 3, will produce
1052 template<class T, class C>
1053 static void sort_two(T *begin, T *end, const T &pivot, const C &less_than)
1055 T *middle = partition(begin, end, [&](const T &elem) { return less_than(elem, pivot); });
1056 sort(begin, middle, [&](const T &a, const T &b) { return less_than(b, a); });
1057 sort(middle, end, less_than);
1060 void QuickSyncEncoderImpl::update_ReferenceFrames(int frame_type)
1064 if (frame_type == FRAME_B)
1067 CurrentCurrPic.flags = VA_PICTURE_H264_SHORT_TERM_REFERENCE;
1069 if (numShortTerm > num_ref_frames)
1070 numShortTerm = num_ref_frames;
1071 for (i=numShortTerm-1; i>0; i--)
1072 ReferenceFrames[i] = ReferenceFrames[i-1];
1073 ReferenceFrames[0] = CurrentCurrPic;
1075 current_frame_num++;
1076 if (current_frame_num > MaxFrameNum)
1077 current_frame_num = 0;
1081 int QuickSyncEncoderImpl::update_RefPicList(int frame_type)
1083 const auto descending_by_frame_idx = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1084 return a.frame_idx > b.frame_idx;
1086 const auto ascending_by_top_field_order_cnt = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1087 return a.TopFieldOrderCnt < b.TopFieldOrderCnt;
1089 const auto descending_by_top_field_order_cnt = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1090 return a.TopFieldOrderCnt > b.TopFieldOrderCnt;
1093 if (frame_type == FRAME_P) {
1094 memcpy(RefPicList0_P, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1095 sort(&RefPicList0_P[0], &RefPicList0_P[numShortTerm], descending_by_frame_idx);
1096 } else if (frame_type == FRAME_B) {
1097 memcpy(RefPicList0_B, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1098 sort_two(&RefPicList0_B[0], &RefPicList0_B[numShortTerm], CurrentCurrPic, ascending_by_top_field_order_cnt);
1100 memcpy(RefPicList1_B, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1101 sort_two(&RefPicList1_B[0], &RefPicList1_B[numShortTerm], CurrentCurrPic, descending_by_top_field_order_cnt);
1108 int QuickSyncEncoderImpl::render_sequence()
1110 VABufferID seq_param_buf, rc_param_buf, render_id[2];
1112 VAEncMiscParameterBuffer *misc_param;
1113 VAEncMiscParameterRateControl *misc_rate_ctrl;
1115 seq_param.level_idc = 41 /*SH_LEVEL_3*/;
1116 seq_param.picture_width_in_mbs = frame_width_mbaligned / 16;
1117 seq_param.picture_height_in_mbs = frame_height_mbaligned / 16;
1118 seq_param.bits_per_second = frame_bitrate;
1120 seq_param.intra_period = intra_period;
1121 seq_param.intra_idr_period = intra_idr_period;
1122 seq_param.ip_period = ip_period;
1124 seq_param.max_num_ref_frames = num_ref_frames;
1125 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1126 seq_param.time_scale = TIMEBASE * 2;
1127 seq_param.num_units_in_tick = 1; /* Tc = num_units_in_tick / scale */
1128 seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 = Log2MaxPicOrderCntLsb - 4;
1129 seq_param.seq_fields.bits.log2_max_frame_num_minus4 = Log2MaxFrameNum - 4;;
1130 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1131 seq_param.seq_fields.bits.chroma_format_idc = 1;
1132 seq_param.seq_fields.bits.direct_8x8_inference_flag = 1;
1134 if (frame_width != frame_width_mbaligned ||
1135 frame_height != frame_height_mbaligned) {
1136 seq_param.frame_cropping_flag = 1;
1137 seq_param.frame_crop_left_offset = 0;
1138 seq_param.frame_crop_right_offset = (frame_width_mbaligned - frame_width)/2;
1139 seq_param.frame_crop_top_offset = 0;
1140 seq_param.frame_crop_bottom_offset = (frame_height_mbaligned - frame_height)/2;
1143 va_status = vaCreateBuffer(va_dpy, context_id,
1144 VAEncSequenceParameterBufferType,
1145 sizeof(seq_param), 1, &seq_param, &seq_param_buf);
1146 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1148 va_status = vaCreateBuffer(va_dpy, context_id,
1149 VAEncMiscParameterBufferType,
1150 sizeof(VAEncMiscParameterBuffer) + sizeof(VAEncMiscParameterRateControl),
1151 1, NULL, &rc_param_buf);
1152 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1154 vaMapBuffer(va_dpy, rc_param_buf, (void **)&misc_param);
1155 misc_param->type = VAEncMiscParameterTypeRateControl;
1156 misc_rate_ctrl = (VAEncMiscParameterRateControl *)misc_param->data;
1157 memset(misc_rate_ctrl, 0, sizeof(*misc_rate_ctrl));
1158 misc_rate_ctrl->bits_per_second = frame_bitrate;
1159 misc_rate_ctrl->target_percentage = 66;
1160 misc_rate_ctrl->window_size = 1000;
1161 misc_rate_ctrl->initial_qp = initial_qp;
1162 misc_rate_ctrl->min_qp = minimal_qp;
1163 misc_rate_ctrl->basic_unit_size = 0;
1164 vaUnmapBuffer(va_dpy, rc_param_buf);
1166 render_id[0] = seq_param_buf;
1167 render_id[1] = rc_param_buf;
1169 render_picture_and_delete(va_dpy, context_id, &render_id[0], 2);
1174 static int calc_poc(int pic_order_cnt_lsb, int frame_type)
1176 static int PicOrderCntMsb_ref = 0, pic_order_cnt_lsb_ref = 0;
1177 int prevPicOrderCntMsb, prevPicOrderCntLsb;
1178 int PicOrderCntMsb, TopFieldOrderCnt;
1180 if (frame_type == FRAME_IDR)
1181 prevPicOrderCntMsb = prevPicOrderCntLsb = 0;
1183 prevPicOrderCntMsb = PicOrderCntMsb_ref;
1184 prevPicOrderCntLsb = pic_order_cnt_lsb_ref;
1187 if ((pic_order_cnt_lsb < prevPicOrderCntLsb) &&
1188 ((prevPicOrderCntLsb - pic_order_cnt_lsb) >= (int)(MaxPicOrderCntLsb / 2)))
1189 PicOrderCntMsb = prevPicOrderCntMsb + MaxPicOrderCntLsb;
1190 else if ((pic_order_cnt_lsb > prevPicOrderCntLsb) &&
1191 ((pic_order_cnt_lsb - prevPicOrderCntLsb) > (int)(MaxPicOrderCntLsb / 2)))
1192 PicOrderCntMsb = prevPicOrderCntMsb - MaxPicOrderCntLsb;
1194 PicOrderCntMsb = prevPicOrderCntMsb;
1196 TopFieldOrderCnt = PicOrderCntMsb + pic_order_cnt_lsb;
1198 if (frame_type != FRAME_B) {
1199 PicOrderCntMsb_ref = PicOrderCntMsb;
1200 pic_order_cnt_lsb_ref = pic_order_cnt_lsb;
1203 return TopFieldOrderCnt;
1206 int QuickSyncEncoderImpl::render_picture(int frame_type, int display_frame_num, int gop_start_display_frame_num)
1208 VABufferID pic_param_buf;
1212 pic_param.CurrPic.picture_id = gl_surfaces[display_frame_num % SURFACE_NUM].ref_surface;
1213 pic_param.CurrPic.frame_idx = current_frame_num;
1214 pic_param.CurrPic.flags = 0;
1215 pic_param.CurrPic.TopFieldOrderCnt = calc_poc((display_frame_num - gop_start_display_frame_num) % MaxPicOrderCntLsb, frame_type);
1216 pic_param.CurrPic.BottomFieldOrderCnt = pic_param.CurrPic.TopFieldOrderCnt;
1217 CurrentCurrPic = pic_param.CurrPic;
1219 memcpy(pic_param.ReferenceFrames, ReferenceFrames, numShortTerm*sizeof(VAPictureH264));
1220 for (i = numShortTerm; i < MAX_NUM_REF1; i++) {
1221 pic_param.ReferenceFrames[i].picture_id = VA_INVALID_SURFACE;
1222 pic_param.ReferenceFrames[i].flags = VA_PICTURE_H264_INVALID;
1225 pic_param.pic_fields.bits.idr_pic_flag = (frame_type == FRAME_IDR);
1226 pic_param.pic_fields.bits.reference_pic_flag = (frame_type != FRAME_B);
1227 pic_param.pic_fields.bits.entropy_coding_mode_flag = h264_entropy_mode;
1228 pic_param.pic_fields.bits.deblocking_filter_control_present_flag = 1;
1229 pic_param.frame_num = current_frame_num;
1230 pic_param.coded_buf = gl_surfaces[display_frame_num % SURFACE_NUM].coded_buf;
1231 pic_param.last_picture = false; // FIXME
1232 pic_param.pic_init_qp = initial_qp;
1234 va_status = vaCreateBuffer(va_dpy, context_id, VAEncPictureParameterBufferType,
1235 sizeof(pic_param), 1, &pic_param, &pic_param_buf);
1236 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1238 render_picture_and_delete(va_dpy, context_id, &pic_param_buf, 1);
1243 int QuickSyncEncoderImpl::render_packedsequence()
1245 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1246 VABufferID packedseq_para_bufid, packedseq_data_bufid, render_id[2];
1247 unsigned int length_in_bits;
1248 unsigned char *packedseq_buffer = NULL;
1251 length_in_bits = build_packed_seq_buffer(&packedseq_buffer);
1253 packedheader_param_buffer.type = VAEncPackedHeaderSequence;
1255 packedheader_param_buffer.bit_length = length_in_bits; /*length_in_bits*/
1256 packedheader_param_buffer.has_emulation_bytes = 0;
1257 va_status = vaCreateBuffer(va_dpy,
1259 VAEncPackedHeaderParameterBufferType,
1260 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1261 &packedseq_para_bufid);
1262 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1264 va_status = vaCreateBuffer(va_dpy,
1266 VAEncPackedHeaderDataBufferType,
1267 (length_in_bits + 7) / 8, 1, packedseq_buffer,
1268 &packedseq_data_bufid);
1269 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1271 render_id[0] = packedseq_para_bufid;
1272 render_id[1] = packedseq_data_bufid;
1273 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1275 free(packedseq_buffer);
1281 int QuickSyncEncoderImpl::render_packedpicture()
1283 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1284 VABufferID packedpic_para_bufid, packedpic_data_bufid, render_id[2];
1285 unsigned int length_in_bits;
1286 unsigned char *packedpic_buffer = NULL;
1289 length_in_bits = build_packed_pic_buffer(&packedpic_buffer);
1290 packedheader_param_buffer.type = VAEncPackedHeaderPicture;
1291 packedheader_param_buffer.bit_length = length_in_bits;
1292 packedheader_param_buffer.has_emulation_bytes = 0;
1294 va_status = vaCreateBuffer(va_dpy,
1296 VAEncPackedHeaderParameterBufferType,
1297 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1298 &packedpic_para_bufid);
1299 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1301 va_status = vaCreateBuffer(va_dpy,
1303 VAEncPackedHeaderDataBufferType,
1304 (length_in_bits + 7) / 8, 1, packedpic_buffer,
1305 &packedpic_data_bufid);
1306 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1308 render_id[0] = packedpic_para_bufid;
1309 render_id[1] = packedpic_data_bufid;
1310 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1312 free(packedpic_buffer);
1317 void QuickSyncEncoderImpl::render_packedslice()
1319 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1320 VABufferID packedslice_para_bufid, packedslice_data_bufid, render_id[2];
1321 unsigned int length_in_bits;
1322 unsigned char *packedslice_buffer = NULL;
1325 length_in_bits = build_packed_slice_buffer(&packedslice_buffer);
1326 packedheader_param_buffer.type = VAEncPackedHeaderSlice;
1327 packedheader_param_buffer.bit_length = length_in_bits;
1328 packedheader_param_buffer.has_emulation_bytes = 0;
1330 va_status = vaCreateBuffer(va_dpy,
1332 VAEncPackedHeaderParameterBufferType,
1333 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1334 &packedslice_para_bufid);
1335 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1337 va_status = vaCreateBuffer(va_dpy,
1339 VAEncPackedHeaderDataBufferType,
1340 (length_in_bits + 7) / 8, 1, packedslice_buffer,
1341 &packedslice_data_bufid);
1342 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1344 render_id[0] = packedslice_para_bufid;
1345 render_id[1] = packedslice_data_bufid;
1346 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1348 free(packedslice_buffer);
1351 int QuickSyncEncoderImpl::render_slice(int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num, int frame_type)
1353 VABufferID slice_param_buf;
1357 update_RefPicList(frame_type);
1359 /* one frame, one slice */
1360 slice_param.macroblock_address = 0;
1361 slice_param.num_macroblocks = frame_width_mbaligned * frame_height_mbaligned/(16*16); /* Measured by MB */
1362 slice_param.slice_type = (frame_type == FRAME_IDR)?2:frame_type;
1363 if (frame_type == FRAME_IDR) {
1364 if (encoding_frame_num != 0)
1365 ++slice_param.idr_pic_id;
1366 } else if (frame_type == FRAME_P) {
1367 int refpiclist0_max = h264_maxref & 0xffff;
1368 memcpy(slice_param.RefPicList0, RefPicList0_P, refpiclist0_max*sizeof(VAPictureH264));
1370 for (i = refpiclist0_max; i < MAX_NUM_REF2; i++) {
1371 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1372 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1374 } else if (frame_type == FRAME_B) {
1375 int refpiclist0_max = h264_maxref & 0xffff;
1376 int refpiclist1_max = (h264_maxref >> 16) & 0xffff;
1378 memcpy(slice_param.RefPicList0, RefPicList0_B, refpiclist0_max*sizeof(VAPictureH264));
1379 for (i = refpiclist0_max; i < MAX_NUM_REF2; i++) {
1380 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1381 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1384 memcpy(slice_param.RefPicList1, RefPicList1_B, refpiclist1_max*sizeof(VAPictureH264));
1385 for (i = refpiclist1_max; i < MAX_NUM_REF2; i++) {
1386 slice_param.RefPicList1[i].picture_id = VA_INVALID_SURFACE;
1387 slice_param.RefPicList1[i].flags = VA_PICTURE_H264_INVALID;
1391 slice_param.slice_alpha_c0_offset_div2 = 0;
1392 slice_param.slice_beta_offset_div2 = 0;
1393 slice_param.direct_spatial_mv_pred_flag = 1;
1394 slice_param.pic_order_cnt_lsb = (display_frame_num - gop_start_display_frame_num) % MaxPicOrderCntLsb;
1397 if (h264_packedheader &&
1398 config_attrib[enc_packed_header_idx].value & VA_ENC_PACKED_HEADER_SLICE)
1399 render_packedslice();
1401 va_status = vaCreateBuffer(va_dpy, context_id, VAEncSliceParameterBufferType,
1402 sizeof(slice_param), 1, &slice_param, &slice_param_buf);
1403 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1405 render_picture_and_delete(va_dpy, context_id, &slice_param_buf, 1);
1412 void QuickSyncEncoderImpl::save_codeddata(storage_task task)
1414 VACodedBufferSegment *buf_list = NULL;
1419 va_status = vaMapBuffer(va_dpy, gl_surfaces[task.display_order % SURFACE_NUM].coded_buf, (void **)(&buf_list));
1420 CHECK_VASTATUS(va_status, "vaMapBuffer");
1421 while (buf_list != NULL) {
1422 data.append(reinterpret_cast<const char *>(buf_list->buf), buf_list->size);
1423 buf_list = (VACodedBufferSegment *) buf_list->next;
1425 vaUnmapBuffer(va_dpy, gl_surfaces[task.display_order % SURFACE_NUM].coded_buf);
1427 static int frameno = 0;
1428 print_latency("Current QuickSync latency (video inputs → disk mux):",
1429 task.received_ts, (task.frame_type == FRAME_B), &frameno);
1434 memset(&pkt, 0, sizeof(pkt));
1436 pkt.data = reinterpret_cast<uint8_t *>(&data[0]);
1437 pkt.size = data.size();
1438 pkt.stream_index = 0;
1439 if (task.frame_type == FRAME_IDR) {
1440 pkt.flags = AV_PKT_FLAG_KEY;
1444 pkt.duration = task.duration;
1446 file_mux->add_packet(pkt, task.pts + global_delay(), task.dts + global_delay());
1448 if (!global_flags.uncompressed_video_to_http &&
1449 !global_flags.x264_video_to_http) {
1450 stream_mux->add_packet(pkt, task.pts + global_delay(), task.dts + global_delay());
1456 // this is weird. but it seems to put a new frame onto the queue
1457 void QuickSyncEncoderImpl::storage_task_enqueue(storage_task task)
1459 unique_lock<mutex> lock(storage_task_queue_mutex);
1460 storage_task_queue.push(move(task));
1461 storage_task_queue_changed.notify_all();
1464 void QuickSyncEncoderImpl::storage_task_thread()
1467 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();
1479 // waits for data, then saves it to disk.
1480 va_status = vaSyncSurface(va_dpy, gl_surfaces[current.display_order % SURFACE_NUM].src_surface);
1481 CHECK_VASTATUS(va_status, "vaSyncSurface");
1482 save_codeddata(move(current));
1485 unique_lock<mutex> lock(storage_task_queue_mutex);
1486 srcsurface_status[current.display_order % SURFACE_NUM] = SRC_SURFACE_FREE;
1487 storage_task_queue_changed.notify_all();
1492 void QuickSyncEncoderImpl::release_encode()
1494 for (unsigned i = 0; i < SURFACE_NUM; i++) {
1495 vaDestroyBuffer(va_dpy, gl_surfaces[i].coded_buf);
1496 vaDestroySurfaces(va_dpy, &gl_surfaces[i].src_surface, 1);
1497 vaDestroySurfaces(va_dpy, &gl_surfaces[i].ref_surface, 1);
1500 vaDestroyContext(va_dpy, context_id);
1501 vaDestroyConfig(va_dpy, config_id);
1504 void QuickSyncEncoderImpl::release_gl_resources()
1506 assert(is_shutdown);
1507 if (has_released_gl_resources) {
1511 for (unsigned i = 0; i < SURFACE_NUM; i++) {
1512 if (!use_zerocopy) {
1513 glBindBuffer(GL_PIXEL_PACK_BUFFER, gl_surfaces[i].pbo);
1514 glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
1515 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1516 glDeleteBuffers(1, &gl_surfaces[i].pbo);
1518 resource_pool->release_2d_texture(gl_surfaces[i].y_tex);
1519 resource_pool->release_2d_texture(gl_surfaces[i].cbcr_tex);
1522 has_released_gl_resources = true;
1525 int QuickSyncEncoderImpl::deinit_va()
1527 vaTerminate(va_dpy);
1529 va_close_display(va_dpy);
1534 QuickSyncEncoderImpl::QuickSyncEncoderImpl(const std::string &filename, movit::ResourcePool *resource_pool, QSurface *surface, const string &va_display, int width, int height, AVOutputFormat *oformat, X264Encoder *x264_encoder, DiskSpaceEstimator *disk_space_estimator)
1535 : 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)
1537 file_audio_encoder.reset(new AudioEncoder(AUDIO_OUTPUT_CODEC_NAME, DEFAULT_AUDIO_OUTPUT_BIT_RATE, oformat));
1538 open_output_file(filename);
1539 file_audio_encoder->add_mux(file_mux.get());
1541 frame_width_mbaligned = (frame_width + 15) & (~15);
1542 frame_height_mbaligned = (frame_height + 15) & (~15);
1546 if (global_flags.uncompressed_video_to_http ||
1547 global_flags.x264_video_to_http) {
1548 reorderer.reset(new FrameReorderer(ip_period - 1, frame_width, frame_height));
1550 if (global_flags.x264_video_to_http) {
1551 assert(x264_encoder != nullptr);
1553 assert(x264_encoder == nullptr);
1556 init_va(va_display);
1559 // No frames are ready yet.
1560 memset(srcsurface_status, SRC_SURFACE_FREE, sizeof(srcsurface_status));
1562 memset(&seq_param, 0, sizeof(seq_param));
1563 memset(&pic_param, 0, sizeof(pic_param));
1564 memset(&slice_param, 0, sizeof(slice_param));
1566 storage_thread = thread(&QuickSyncEncoderImpl::storage_task_thread, this);
1568 encode_thread = thread([this]{
1569 //SDL_GL_MakeCurrent(window, context);
1570 QOpenGLContext *context = create_context(this->surface);
1571 eglBindAPI(EGL_OPENGL_API);
1572 if (!make_current(context, this->surface)) {
1573 printf("display=%p surface=%p context=%p curr=%p err=%d\n", eglGetCurrentDisplay(), this->surface, context, eglGetCurrentContext(),
1577 encode_thread_func();
1578 delete_context(context);
1582 QuickSyncEncoderImpl::~QuickSyncEncoderImpl()
1585 release_gl_resources();
1588 bool QuickSyncEncoderImpl::begin_frame(GLuint *y_tex, GLuint *cbcr_tex)
1590 assert(!is_shutdown);
1592 // Wait until this frame slot is done encoding.
1593 unique_lock<mutex> lock(storage_task_queue_mutex);
1594 if (srcsurface_status[current_storage_frame % SURFACE_NUM] != SRC_SURFACE_FREE) {
1595 fprintf(stderr, "Warning: Slot %d (for frame %d) is still encoding, rendering has to wait for H.264 encoder\n",
1596 current_storage_frame % SURFACE_NUM, current_storage_frame);
1598 storage_task_queue_changed.wait(lock, [this]{ return storage_thread_should_quit || (srcsurface_status[current_storage_frame % SURFACE_NUM] == SRC_SURFACE_FREE); });
1599 srcsurface_status[current_storage_frame % SURFACE_NUM] = SRC_SURFACE_IN_ENCODING;
1600 if (storage_thread_should_quit) return false;
1603 //*fbo = fbos[current_storage_frame % SURFACE_NUM];
1604 GLSurface *surf = &gl_surfaces[current_storage_frame % SURFACE_NUM];
1605 *y_tex = surf->y_tex;
1606 *cbcr_tex = surf->cbcr_tex;
1608 VAStatus va_status = vaDeriveImage(va_dpy, surf->src_surface, &surf->surface_image);
1609 CHECK_VASTATUS(va_status, "vaDeriveImage");
1612 VABufferInfo buf_info;
1613 buf_info.mem_type = VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME; // or VA_SURFACE_ATTRIB_MEM_TYPE_KERNEL_DRM?
1614 va_status = vaAcquireBufferHandle(va_dpy, surf->surface_image.buf, &buf_info);
1615 CHECK_VASTATUS(va_status, "vaAcquireBufferHandle");
1618 surf->y_egl_image = EGL_NO_IMAGE_KHR;
1619 EGLint y_attribs[] = {
1620 EGL_WIDTH, frame_width,
1621 EGL_HEIGHT, frame_height,
1622 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('R', '8', ' ', ' '),
1623 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
1624 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[0]),
1625 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[0]),
1629 surf->y_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, y_attribs);
1630 assert(surf->y_egl_image != EGL_NO_IMAGE_KHR);
1632 // Associate Y image to a texture.
1633 glBindTexture(GL_TEXTURE_2D, *y_tex);
1634 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->y_egl_image);
1636 // Create CbCr image.
1637 surf->cbcr_egl_image = EGL_NO_IMAGE_KHR;
1638 EGLint cbcr_attribs[] = {
1639 EGL_WIDTH, frame_width,
1640 EGL_HEIGHT, frame_height,
1641 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('G', 'R', '8', '8'),
1642 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
1643 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[1]),
1644 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[1]),
1648 surf->cbcr_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, cbcr_attribs);
1649 assert(surf->cbcr_egl_image != EGL_NO_IMAGE_KHR);
1651 // Associate CbCr image to a texture.
1652 glBindTexture(GL_TEXTURE_2D, *cbcr_tex);
1653 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->cbcr_egl_image);
1659 void QuickSyncEncoderImpl::add_audio(int64_t pts, vector<float> audio)
1661 assert(!is_shutdown);
1662 file_audio_encoder->encode_audio(audio, pts + global_delay());
1665 RefCountedGLsync QuickSyncEncoderImpl::end_frame(int64_t pts, int64_t duration, const vector<RefCountedFrame> &input_frames)
1667 assert(!is_shutdown);
1669 if (!use_zerocopy) {
1670 GLSurface *surf = &gl_surfaces[current_storage_frame % SURFACE_NUM];
1672 glPixelStorei(GL_PACK_ROW_LENGTH, 0);
1675 glBindBuffer(GL_PIXEL_PACK_BUFFER, surf->pbo);
1678 glBindTexture(GL_TEXTURE_2D, surf->y_tex);
1680 glGetTexImage(GL_TEXTURE_2D, 0, GL_RED, GL_UNSIGNED_BYTE, BUFFER_OFFSET(surf->y_offset));
1683 glBindTexture(GL_TEXTURE_2D, surf->cbcr_tex);
1685 glGetTexImage(GL_TEXTURE_2D, 0, GL_RG, GL_UNSIGNED_BYTE, BUFFER_OFFSET(surf->cbcr_offset));
1688 glBindTexture(GL_TEXTURE_2D, 0);
1690 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1693 glMemoryBarrier(GL_TEXTURE_UPDATE_BARRIER_BIT | GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT);
1697 RefCountedGLsync fence = RefCountedGLsync(GL_SYNC_GPU_COMMANDS_COMPLETE, /*flags=*/0);
1699 glFlush(); // Make the H.264 thread see the fence as soon as possible.
1703 unique_lock<mutex> lock(frame_queue_mutex);
1704 pending_video_frames[current_storage_frame] = PendingFrame{ fence, input_frames, pts, duration };
1705 ++current_storage_frame;
1707 frame_queue_nonempty.notify_all();
1711 void QuickSyncEncoderImpl::shutdown()
1718 unique_lock<mutex> lock(frame_queue_mutex);
1719 encode_thread_should_quit = true;
1720 frame_queue_nonempty.notify_all();
1722 encode_thread.join();
1724 unique_lock<mutex> lock(storage_task_queue_mutex);
1725 storage_thread_should_quit = true;
1726 frame_queue_nonempty.notify_all();
1727 storage_task_queue_changed.notify_all();
1729 storage_thread.join();
1731 // Encode any leftover audio in the queues, and also any delayed frames.
1732 file_audio_encoder->encode_last_audio();
1740 void QuickSyncEncoderImpl::open_output_file(const std::string &filename)
1742 AVFormatContext *avctx = avformat_alloc_context();
1743 avctx->oformat = av_guess_format(NULL, filename.c_str(), NULL);
1744 assert(filename.size() < sizeof(avctx->filename) - 1);
1745 strcpy(avctx->filename, filename.c_str());
1747 string url = "file:" + filename;
1748 int ret = avio_open2(&avctx->pb, url.c_str(), AVIO_FLAG_WRITE, &avctx->interrupt_callback, NULL);
1750 char tmp[AV_ERROR_MAX_STRING_SIZE];
1751 fprintf(stderr, "%s: avio_open2() failed: %s\n", filename.c_str(), av_make_error_string(tmp, sizeof(tmp), ret));
1755 string video_extradata = ""; // FIXME: See other comment about global headers.
1756 AVCodecParametersWithDeleter audio_codecpar = file_audio_encoder->get_codec_parameters();
1757 file_mux.reset(new Mux(avctx, frame_width, frame_height, Mux::CODEC_H264, video_extradata, audio_codecpar.get(), TIMEBASE,
1758 std::bind(&DiskSpaceEstimator::report_write, disk_space_estimator, filename, _1)));
1761 void QuickSyncEncoderImpl::encode_thread_func()
1763 int64_t last_dts = -1;
1764 int gop_start_display_frame_num = 0;
1765 for (int encoding_frame_num = 0; ; ++encoding_frame_num) {
1768 int frame_type, display_frame_num;
1769 encoding2display_order(encoding_frame_num, intra_period, intra_idr_period, ip_period,
1770 &display_frame_num, &frame_type, &pts_lag);
1771 if (frame_type == FRAME_IDR) {
1773 current_frame_num = 0;
1774 gop_start_display_frame_num = display_frame_num;
1778 unique_lock<mutex> lock(frame_queue_mutex);
1779 frame_queue_nonempty.wait(lock, [this, display_frame_num]{
1780 return encode_thread_should_quit || pending_video_frames.count(display_frame_num) != 0;
1782 if (encode_thread_should_quit && pending_video_frames.count(display_frame_num) == 0) {
1783 // We have queued frames that were supposed to be B-frames,
1784 // but will be no P-frame to encode them against. Encode them all
1785 // as P-frames instead. Note that this happens under the mutex,
1786 // but nobody else uses it at this point, since we're shutting down,
1787 // so there's no contention.
1788 encode_remaining_frames_as_p(encoding_frame_num, gop_start_display_frame_num, last_dts);
1791 frame = move(pending_video_frames[display_frame_num]);
1792 pending_video_frames.erase(display_frame_num);
1796 // Determine the dts of this frame.
1798 if (pts_lag == -1) {
1799 assert(last_dts != -1);
1800 dts = last_dts + (TIMEBASE / MAX_FPS);
1802 dts = frame.pts - pts_lag;
1806 encode_frame(frame, encoding_frame_num, display_frame_num, gop_start_display_frame_num, frame_type, frame.pts, dts, frame.duration);
1810 void QuickSyncEncoderImpl::encode_remaining_frames_as_p(int encoding_frame_num, int gop_start_display_frame_num, int64_t last_dts)
1812 if (pending_video_frames.empty()) {
1816 for (auto &pending_frame : pending_video_frames) {
1817 int display_frame_num = pending_frame.first;
1818 assert(display_frame_num > 0);
1819 PendingFrame frame = move(pending_frame.second);
1820 int64_t dts = last_dts + (TIMEBASE / MAX_FPS);
1821 printf("Finalizing encode: Encoding leftover frame %d as P-frame instead of B-frame.\n", display_frame_num);
1822 encode_frame(frame, encoding_frame_num++, display_frame_num, gop_start_display_frame_num, FRAME_P, frame.pts, dts, frame.duration);
1826 if (global_flags.uncompressed_video_to_http ||
1827 global_flags.x264_video_to_http) {
1828 // Add frames left in reorderer.
1829 while (!reorderer->empty()) {
1830 FrameReorderer::Frame output_frame = reorderer->get_first_frame();
1831 if (global_flags.uncompressed_video_to_http) {
1832 add_packet_for_uncompressed_frame(output_frame.pts, output_frame.duration, output_frame.data);
1834 assert(global_flags.x264_video_to_http);
1835 x264_encoder->add_frame(output_frame.pts, output_frame.duration, output_frame.data, output_frame.received_ts);
1841 void QuickSyncEncoderImpl::add_packet_for_uncompressed_frame(int64_t pts, int64_t duration, const uint8_t *data)
1844 memset(&pkt, 0, sizeof(pkt));
1846 pkt.data = const_cast<uint8_t *>(data);
1847 pkt.size = frame_width * frame_height * 2;
1848 pkt.stream_index = 0;
1849 pkt.flags = AV_PKT_FLAG_KEY;
1850 pkt.duration = duration;
1851 stream_mux->add_packet(pkt, pts, pts);
1856 void memcpy_with_pitch(uint8_t *dst, const uint8_t *src, size_t src_width, size_t dst_pitch, size_t height)
1858 if (src_width == dst_pitch) {
1859 memcpy(dst, src, src_width * height);
1861 for (size_t y = 0; y < height; ++y) {
1862 const uint8_t *sptr = src + y * src_width;
1863 uint8_t *dptr = dst + y * dst_pitch;
1864 memcpy(dptr, sptr, src_width);
1871 void QuickSyncEncoderImpl::encode_frame(QuickSyncEncoderImpl::PendingFrame frame, int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num,
1872 int frame_type, int64_t pts, int64_t dts, int64_t duration)
1874 // Wait for the GPU to be done with the frame.
1877 sync_status = glClientWaitSync(frame.fence.get(), 0, 1000000000);
1879 } while (sync_status == GL_TIMEOUT_EXPIRED);
1880 assert(sync_status != GL_WAIT_FAILED);
1882 // Find min and max timestamp of all input frames that have a timestamp.
1883 steady_clock::time_point min_ts = steady_clock::time_point::max(), max_ts = steady_clock::time_point::min();
1884 for (const RefCountedFrame &input_frame : frame.input_frames) {
1885 if (input_frame && input_frame->received_timestamp > steady_clock::time_point::min()) {
1886 min_ts = min(min_ts, input_frame->received_timestamp);
1887 max_ts = max(max_ts, input_frame->received_timestamp);
1890 const ReceivedTimestamps received_ts{ min_ts, max_ts };
1892 // Release back any input frames we needed to render this frame.
1893 frame.input_frames.clear();
1895 GLSurface *surf = &gl_surfaces[display_frame_num % SURFACE_NUM];
1899 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->y_egl_image);
1900 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->cbcr_egl_image);
1901 va_status = vaReleaseBufferHandle(va_dpy, surf->surface_image.buf);
1902 CHECK_VASTATUS(va_status, "vaReleaseBufferHandle");
1904 unsigned char *surface_p = nullptr;
1905 vaMapBuffer(va_dpy, surf->surface_image.buf, (void **)&surface_p);
1907 unsigned char *va_y_ptr = (unsigned char *)surface_p + surf->surface_image.offsets[0];
1908 memcpy_with_pitch(va_y_ptr, surf->y_ptr, frame_width, surf->surface_image.pitches[0], frame_height);
1910 unsigned char *va_cbcr_ptr = (unsigned char *)surface_p + surf->surface_image.offsets[1];
1911 memcpy_with_pitch(va_cbcr_ptr, surf->cbcr_ptr, (frame_width / 2) * sizeof(uint16_t), surf->surface_image.pitches[1], frame_height / 2);
1913 va_status = vaUnmapBuffer(va_dpy, surf->surface_image.buf);
1914 CHECK_VASTATUS(va_status, "vaUnmapBuffer");
1916 if (global_flags.uncompressed_video_to_http ||
1917 global_flags.x264_video_to_http) {
1918 // Add uncompressed video. (Note that pts == dts here.)
1919 // Delay needs to match audio.
1920 FrameReorderer::Frame output_frame = reorderer->reorder_frame(pts + global_delay(), duration, reinterpret_cast<uint8_t *>(surf->y_ptr), received_ts);
1921 if (output_frame.data != nullptr) {
1922 if (global_flags.uncompressed_video_to_http) {
1923 add_packet_for_uncompressed_frame(output_frame.pts, output_frame.duration, output_frame.data);
1925 assert(global_flags.x264_video_to_http);
1926 x264_encoder->add_frame(output_frame.pts, output_frame.duration, output_frame.data, output_frame.received_ts);
1932 static int frameno = 0;
1933 print_latency("Current mixer latency (video inputs → ready for encode):",
1934 received_ts, (frame_type == FRAME_B), &frameno);
1936 va_status = vaDestroyImage(va_dpy, surf->surface_image.image_id);
1937 CHECK_VASTATUS(va_status, "vaDestroyImage");
1939 // Schedule the frame for encoding.
1940 VASurfaceID va_surface = surf->src_surface;
1941 va_status = vaBeginPicture(va_dpy, context_id, va_surface);
1942 CHECK_VASTATUS(va_status, "vaBeginPicture");
1944 if (frame_type == FRAME_IDR) {
1945 // FIXME: If the mux wants global headers, we should not put the
1946 // SPS/PPS before each IDR frame, but rather put it into the
1947 // codec extradata (formatted differently?).
1949 render_picture(frame_type, display_frame_num, gop_start_display_frame_num);
1950 if (h264_packedheader) {
1951 render_packedsequence();
1952 render_packedpicture();
1955 //render_sequence();
1956 render_picture(frame_type, display_frame_num, gop_start_display_frame_num);
1958 render_slice(encoding_frame_num, display_frame_num, gop_start_display_frame_num, frame_type);
1960 va_status = vaEndPicture(va_dpy, context_id);
1961 CHECK_VASTATUS(va_status, "vaEndPicture");
1963 // so now the data is done encoding (well, async job kicked off)...
1964 // we send that to the storage thread
1966 tmp.display_order = display_frame_num;
1967 tmp.frame_type = frame_type;
1970 tmp.duration = duration;
1971 tmp.received_ts = received_ts;
1972 storage_task_enqueue(move(tmp));
1974 update_ReferenceFrames(frame_type);
1978 QuickSyncEncoder::QuickSyncEncoder(const std::string &filename, movit::ResourcePool *resource_pool, QSurface *surface, const string &va_display, int width, int height, AVOutputFormat *oformat, X264Encoder *x264_encoder, DiskSpaceEstimator *disk_space_estimator)
1979 : impl(new QuickSyncEncoderImpl(filename, resource_pool, surface, va_display, width, height, oformat, x264_encoder, disk_space_estimator)) {}
1981 // Must be defined here because unique_ptr<> destructor needs to know the impl.
1982 QuickSyncEncoder::~QuickSyncEncoder() {}
1984 void QuickSyncEncoder::add_audio(int64_t pts, vector<float> audio)
1986 impl->add_audio(pts, audio);
1989 bool QuickSyncEncoder::begin_frame(GLuint *y_tex, GLuint *cbcr_tex)
1991 return impl->begin_frame(y_tex, cbcr_tex);
1994 RefCountedGLsync QuickSyncEncoder::end_frame(int64_t pts, int64_t duration, const vector<RefCountedFrame> &input_frames)
1996 return impl->end_frame(pts, duration, input_frames);
1999 void QuickSyncEncoder::shutdown()
2004 void QuickSyncEncoder::set_stream_mux(Mux *mux)
2006 impl->set_stream_mux(mux);
2009 int64_t QuickSyncEncoder::global_delay() const {
2010 return impl->global_delay();