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 // Supposedly vaRenderPicture() is supposed to destroy the buffer implicitly,
122 // but if we don't delete it here, we get leaks. The GStreamer implementation
124 static void render_picture_and_delete(VADisplay dpy, VAContextID context, VABufferID *buffers, int num_buffers)
126 VAStatus va_status = vaRenderPicture(dpy, context, buffers, num_buffers);
127 CHECK_VASTATUS(va_status, "vaRenderPicture");
129 for (int i = 0; i < num_buffers; ++i) {
130 va_status = vaDestroyBuffer(dpy, buffers[i]);
131 CHECK_VASTATUS(va_status, "vaDestroyBuffer");
136 va_swap32(unsigned int val)
138 unsigned char *pval = (unsigned char *)&val;
140 return ((pval[0] << 24) |
147 bitstream_start(bitstream *bs)
149 bs->max_size_in_dword = BITSTREAM_ALLOCATE_STEPPING;
150 bs->buffer = (unsigned int *)calloc(bs->max_size_in_dword * sizeof(int), 1);
155 bitstream_end(bitstream *bs)
157 int pos = (bs->bit_offset >> 5);
158 int bit_offset = (bs->bit_offset & 0x1f);
159 int bit_left = 32 - bit_offset;
162 bs->buffer[pos] = va_swap32((bs->buffer[pos] << bit_left));
167 bitstream_put_ui(bitstream *bs, unsigned int val, int size_in_bits)
169 int pos = (bs->bit_offset >> 5);
170 int bit_offset = (bs->bit_offset & 0x1f);
171 int bit_left = 32 - bit_offset;
176 bs->bit_offset += size_in_bits;
178 if (bit_left > size_in_bits) {
179 bs->buffer[pos] = (bs->buffer[pos] << size_in_bits | val);
181 size_in_bits -= bit_left;
182 if (bit_left >= 32) {
183 bs->buffer[pos] = (val >> size_in_bits);
185 bs->buffer[pos] = (bs->buffer[pos] << bit_left) | (val >> size_in_bits);
187 bs->buffer[pos] = va_swap32(bs->buffer[pos]);
189 if (pos + 1 == bs->max_size_in_dword) {
190 bs->max_size_in_dword += BITSTREAM_ALLOCATE_STEPPING;
191 bs->buffer = (unsigned int *)realloc(bs->buffer, bs->max_size_in_dword * sizeof(unsigned int));
194 bs->buffer[pos + 1] = val;
199 bitstream_put_ue(bitstream *bs, unsigned int val)
201 int size_in_bits = 0;
209 bitstream_put_ui(bs, 0, size_in_bits - 1); // leading zero
210 bitstream_put_ui(bs, val, size_in_bits);
214 bitstream_put_se(bitstream *bs, int val)
216 unsigned int new_val;
221 new_val = 2 * val - 1;
223 bitstream_put_ue(bs, new_val);
227 bitstream_byte_aligning(bitstream *bs, int bit)
229 int bit_offset = (bs->bit_offset & 0x7);
230 int bit_left = 8 - bit_offset;
236 assert(bit == 0 || bit == 1);
239 new_val = (1 << bit_left) - 1;
243 bitstream_put_ui(bs, new_val, bit_left);
247 rbsp_trailing_bits(bitstream *bs)
249 bitstream_put_ui(bs, 1, 1);
250 bitstream_byte_aligning(bs, 0);
253 static void nal_start_code_prefix(bitstream *bs)
255 bitstream_put_ui(bs, 0x00000001, 32);
258 static void nal_header(bitstream *bs, int nal_ref_idc, int nal_unit_type)
260 bitstream_put_ui(bs, 0, 1); /* forbidden_zero_bit: 0 */
261 bitstream_put_ui(bs, nal_ref_idc, 2);
262 bitstream_put_ui(bs, nal_unit_type, 5);
265 void QuickSyncEncoderImpl::sps_rbsp(bitstream *bs)
267 int profile_idc = PROFILE_IDC_BASELINE;
269 if (h264_profile == VAProfileH264High)
270 profile_idc = PROFILE_IDC_HIGH;
271 else if (h264_profile == VAProfileH264Main)
272 profile_idc = PROFILE_IDC_MAIN;
274 bitstream_put_ui(bs, profile_idc, 8); /* profile_idc */
275 bitstream_put_ui(bs, !!(constraint_set_flag & 1), 1); /* constraint_set0_flag */
276 bitstream_put_ui(bs, !!(constraint_set_flag & 2), 1); /* constraint_set1_flag */
277 bitstream_put_ui(bs, !!(constraint_set_flag & 4), 1); /* constraint_set2_flag */
278 bitstream_put_ui(bs, !!(constraint_set_flag & 8), 1); /* constraint_set3_flag */
279 bitstream_put_ui(bs, 0, 4); /* reserved_zero_4bits */
280 bitstream_put_ui(bs, seq_param.level_idc, 8); /* level_idc */
281 bitstream_put_ue(bs, seq_param.seq_parameter_set_id); /* seq_parameter_set_id */
283 if ( profile_idc == PROFILE_IDC_HIGH) {
284 bitstream_put_ue(bs, 1); /* chroma_format_idc = 1, 4:2:0 */
285 bitstream_put_ue(bs, 0); /* bit_depth_luma_minus8 */
286 bitstream_put_ue(bs, 0); /* bit_depth_chroma_minus8 */
287 bitstream_put_ui(bs, 0, 1); /* qpprime_y_zero_transform_bypass_flag */
288 bitstream_put_ui(bs, 0, 1); /* seq_scaling_matrix_present_flag */
291 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_frame_num_minus4); /* log2_max_frame_num_minus4 */
292 bitstream_put_ue(bs, seq_param.seq_fields.bits.pic_order_cnt_type); /* pic_order_cnt_type */
294 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0)
295 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4); /* log2_max_pic_order_cnt_lsb_minus4 */
300 bitstream_put_ue(bs, seq_param.max_num_ref_frames); /* num_ref_frames */
301 bitstream_put_ui(bs, 0, 1); /* gaps_in_frame_num_value_allowed_flag */
303 bitstream_put_ue(bs, seq_param.picture_width_in_mbs - 1); /* pic_width_in_mbs_minus1 */
304 bitstream_put_ue(bs, seq_param.picture_height_in_mbs - 1); /* pic_height_in_map_units_minus1 */
305 bitstream_put_ui(bs, seq_param.seq_fields.bits.frame_mbs_only_flag, 1); /* frame_mbs_only_flag */
307 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
311 bitstream_put_ui(bs, seq_param.seq_fields.bits.direct_8x8_inference_flag, 1); /* direct_8x8_inference_flag */
312 bitstream_put_ui(bs, seq_param.frame_cropping_flag, 1); /* frame_cropping_flag */
314 if (seq_param.frame_cropping_flag) {
315 bitstream_put_ue(bs, seq_param.frame_crop_left_offset); /* frame_crop_left_offset */
316 bitstream_put_ue(bs, seq_param.frame_crop_right_offset); /* frame_crop_right_offset */
317 bitstream_put_ue(bs, seq_param.frame_crop_top_offset); /* frame_crop_top_offset */
318 bitstream_put_ue(bs, seq_param.frame_crop_bottom_offset); /* frame_crop_bottom_offset */
321 //if ( frame_bit_rate < 0 ) { //TODO EW: the vui header isn't correct
323 bitstream_put_ui(bs, 0, 1); /* vui_parameters_present_flag */
325 bitstream_put_ui(bs, 1, 1); /* vui_parameters_present_flag */
326 bitstream_put_ui(bs, 0, 1); /* aspect_ratio_info_present_flag */
327 bitstream_put_ui(bs, 0, 1); /* overscan_info_present_flag */
328 bitstream_put_ui(bs, 1, 1); /* video_signal_type_present_flag */
330 bitstream_put_ui(bs, 5, 3); /* video_format (5 = Unspecified) */
331 bitstream_put_ui(bs, 0, 1); /* video_full_range_flag */
332 bitstream_put_ui(bs, 1, 1); /* colour_description_present_flag */
334 bitstream_put_ui(bs, 1, 8); /* colour_primaries (1 = BT.709) */
335 bitstream_put_ui(bs, 2, 8); /* transfer_characteristics (2 = unspecified, since we use sRGB) */
336 bitstream_put_ui(bs, 6, 8); /* matrix_coefficients (6 = BT.601/SMPTE 170M) */
339 bitstream_put_ui(bs, 0, 1); /* chroma_loc_info_present_flag */
340 bitstream_put_ui(bs, 1, 1); /* timing_info_present_flag */
342 bitstream_put_ui(bs, 1, 32); // FPS
343 bitstream_put_ui(bs, TIMEBASE * 2, 32); // FPS
344 bitstream_put_ui(bs, 1, 1);
346 bitstream_put_ui(bs, 1, 1); /* nal_hrd_parameters_present_flag */
349 bitstream_put_ue(bs, 0); /* cpb_cnt_minus1 */
350 bitstream_put_ui(bs, 4, 4); /* bit_rate_scale */
351 bitstream_put_ui(bs, 6, 4); /* cpb_size_scale */
353 bitstream_put_ue(bs, frame_bitrate - 1); /* bit_rate_value_minus1[0] */
354 bitstream_put_ue(bs, frame_bitrate*8 - 1); /* cpb_size_value_minus1[0] */
355 bitstream_put_ui(bs, 1, 1); /* cbr_flag[0] */
357 bitstream_put_ui(bs, 23, 5); /* initial_cpb_removal_delay_length_minus1 */
358 bitstream_put_ui(bs, 23, 5); /* cpb_removal_delay_length_minus1 */
359 bitstream_put_ui(bs, 23, 5); /* dpb_output_delay_length_minus1 */
360 bitstream_put_ui(bs, 23, 5); /* time_offset_length */
362 bitstream_put_ui(bs, 0, 1); /* vcl_hrd_parameters_present_flag */
363 bitstream_put_ui(bs, 0, 1); /* low_delay_hrd_flag */
365 bitstream_put_ui(bs, 0, 1); /* pic_struct_present_flag */
366 bitstream_put_ui(bs, 0, 1); /* bitstream_restriction_flag */
369 rbsp_trailing_bits(bs); /* rbsp_trailing_bits */
373 void QuickSyncEncoderImpl::pps_rbsp(bitstream *bs)
375 bitstream_put_ue(bs, pic_param.pic_parameter_set_id); /* pic_parameter_set_id */
376 bitstream_put_ue(bs, pic_param.seq_parameter_set_id); /* seq_parameter_set_id */
378 bitstream_put_ui(bs, pic_param.pic_fields.bits.entropy_coding_mode_flag, 1); /* entropy_coding_mode_flag */
380 bitstream_put_ui(bs, 0, 1); /* pic_order_present_flag: 0 */
382 bitstream_put_ue(bs, 0); /* num_slice_groups_minus1 */
384 bitstream_put_ue(bs, pic_param.num_ref_idx_l0_active_minus1); /* num_ref_idx_l0_active_minus1 */
385 bitstream_put_ue(bs, pic_param.num_ref_idx_l1_active_minus1); /* num_ref_idx_l1_active_minus1 1 */
387 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_pred_flag, 1); /* weighted_pred_flag: 0 */
388 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_bipred_idc, 2); /* weighted_bipred_idc: 0 */
390 bitstream_put_se(bs, pic_param.pic_init_qp - 26); /* pic_init_qp_minus26 */
391 bitstream_put_se(bs, 0); /* pic_init_qs_minus26 */
392 bitstream_put_se(bs, 0); /* chroma_qp_index_offset */
394 bitstream_put_ui(bs, pic_param.pic_fields.bits.deblocking_filter_control_present_flag, 1); /* deblocking_filter_control_present_flag */
395 bitstream_put_ui(bs, 0, 1); /* constrained_intra_pred_flag */
396 bitstream_put_ui(bs, 0, 1); /* redundant_pic_cnt_present_flag */
399 bitstream_put_ui(bs, pic_param.pic_fields.bits.transform_8x8_mode_flag, 1); /*transform_8x8_mode_flag */
400 bitstream_put_ui(bs, 0, 1); /* pic_scaling_matrix_present_flag */
401 bitstream_put_se(bs, pic_param.second_chroma_qp_index_offset ); /*second_chroma_qp_index_offset */
403 rbsp_trailing_bits(bs);
406 void QuickSyncEncoderImpl::slice_header(bitstream *bs)
408 int first_mb_in_slice = slice_param.macroblock_address;
410 bitstream_put_ue(bs, first_mb_in_slice); /* first_mb_in_slice: 0 */
411 bitstream_put_ue(bs, slice_param.slice_type); /* slice_type */
412 bitstream_put_ue(bs, slice_param.pic_parameter_set_id); /* pic_parameter_set_id: 0 */
413 bitstream_put_ui(bs, pic_param.frame_num, seq_param.seq_fields.bits.log2_max_frame_num_minus4 + 4); /* frame_num */
415 /* frame_mbs_only_flag == 1 */
416 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
421 if (pic_param.pic_fields.bits.idr_pic_flag)
422 bitstream_put_ue(bs, slice_param.idr_pic_id); /* idr_pic_id: 0 */
424 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0) {
425 bitstream_put_ui(bs, pic_param.CurrPic.TopFieldOrderCnt, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 + 4);
426 /* pic_order_present_flag == 0 */
432 /* redundant_pic_cnt_present_flag == 0 */
434 if (IS_P_SLICE(slice_param.slice_type)) {
435 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
437 if (slice_param.num_ref_idx_active_override_flag)
438 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
440 /* ref_pic_list_reordering */
441 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
442 } else if (IS_B_SLICE(slice_param.slice_type)) {
443 bitstream_put_ui(bs, slice_param.direct_spatial_mv_pred_flag, 1); /* direct_spatial_mv_pred: 1 */
445 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
447 if (slice_param.num_ref_idx_active_override_flag) {
448 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
449 bitstream_put_ue(bs, slice_param.num_ref_idx_l1_active_minus1);
452 /* ref_pic_list_reordering */
453 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
454 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l1: 0 */
457 if ((pic_param.pic_fields.bits.weighted_pred_flag &&
458 IS_P_SLICE(slice_param.slice_type)) ||
459 ((pic_param.pic_fields.bits.weighted_bipred_idc == 1) &&
460 IS_B_SLICE(slice_param.slice_type))) {
461 /* FIXME: fill weight/offset table */
465 /* dec_ref_pic_marking */
466 if (pic_param.pic_fields.bits.reference_pic_flag) { /* nal_ref_idc != 0 */
467 unsigned char no_output_of_prior_pics_flag = 0;
468 unsigned char long_term_reference_flag = 0;
469 unsigned char adaptive_ref_pic_marking_mode_flag = 0;
471 if (pic_param.pic_fields.bits.idr_pic_flag) {
472 bitstream_put_ui(bs, no_output_of_prior_pics_flag, 1); /* no_output_of_prior_pics_flag: 0 */
473 bitstream_put_ui(bs, long_term_reference_flag, 1); /* long_term_reference_flag: 0 */
475 bitstream_put_ui(bs, adaptive_ref_pic_marking_mode_flag, 1); /* adaptive_ref_pic_marking_mode_flag: 0 */
479 if (pic_param.pic_fields.bits.entropy_coding_mode_flag &&
480 !IS_I_SLICE(slice_param.slice_type))
481 bitstream_put_ue(bs, slice_param.cabac_init_idc); /* cabac_init_idc: 0 */
483 bitstream_put_se(bs, slice_param.slice_qp_delta); /* slice_qp_delta: 0 */
485 /* ignore for SP/SI */
487 if (pic_param.pic_fields.bits.deblocking_filter_control_present_flag) {
488 bitstream_put_ue(bs, slice_param.disable_deblocking_filter_idc); /* disable_deblocking_filter_idc: 0 */
490 if (slice_param.disable_deblocking_filter_idc != 1) {
491 bitstream_put_se(bs, slice_param.slice_alpha_c0_offset_div2); /* slice_alpha_c0_offset_div2: 2 */
492 bitstream_put_se(bs, slice_param.slice_beta_offset_div2); /* slice_beta_offset_div2: 2 */
496 if (pic_param.pic_fields.bits.entropy_coding_mode_flag) {
497 bitstream_byte_aligning(bs, 1);
501 int QuickSyncEncoderImpl::build_packed_pic_buffer(unsigned char **header_buffer)
505 bitstream_start(&bs);
506 nal_start_code_prefix(&bs);
507 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_PPS);
511 *header_buffer = (unsigned char *)bs.buffer;
512 return bs.bit_offset;
516 QuickSyncEncoderImpl::build_packed_seq_buffer(unsigned char **header_buffer)
520 bitstream_start(&bs);
521 nal_start_code_prefix(&bs);
522 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_SPS);
526 *header_buffer = (unsigned char *)bs.buffer;
527 return bs.bit_offset;
530 int QuickSyncEncoderImpl::build_packed_slice_buffer(unsigned char **header_buffer)
533 int is_idr = !!pic_param.pic_fields.bits.idr_pic_flag;
534 int is_ref = !!pic_param.pic_fields.bits.reference_pic_flag;
536 bitstream_start(&bs);
537 nal_start_code_prefix(&bs);
539 if (IS_I_SLICE(slice_param.slice_type)) {
540 nal_header(&bs, NAL_REF_IDC_HIGH, is_idr ? NAL_IDR : NAL_NON_IDR);
541 } else if (IS_P_SLICE(slice_param.slice_type)) {
542 nal_header(&bs, NAL_REF_IDC_MEDIUM, NAL_NON_IDR);
544 assert(IS_B_SLICE(slice_param.slice_type));
545 nal_header(&bs, is_ref ? NAL_REF_IDC_LOW : NAL_REF_IDC_NONE, NAL_NON_IDR);
551 *header_buffer = (unsigned char *)bs.buffer;
552 return bs.bit_offset;
557 Assume frame sequence is: Frame#0, #1, #2, ..., #M, ..., #X, ... (encoding order)
558 1) period between Frame #X and Frame #N = #X - #N
559 2) 0 means infinite for intra_period/intra_idr_period, and 0 is invalid for ip_period
560 3) intra_idr_period % intra_period (intra_period > 0) and intra_period % ip_period must be 0
561 4) intra_period and intra_idr_period take precedence over ip_period
562 5) if ip_period > 1, intra_period and intra_idr_period are not the strict periods
563 of I/IDR frames, see bellow examples
564 -------------------------------------------------------------------
565 intra_period intra_idr_period ip_period frame sequence (intra_period/intra_idr_period/ip_period)
566 0 ignored 1 IDRPPPPPPP ... (No IDR/I any more)
567 0 ignored >=2 IDR(PBB)(PBB)... (No IDR/I any more)
568 1 0 ignored IDRIIIIIII... (No IDR any more)
569 1 1 ignored IDR IDR IDR IDR...
570 1 >=2 ignored IDRII IDRII IDR... (1/3/ignore)
571 >=2 0 1 IDRPPP IPPP I... (3/0/1)
572 >=2 0 >=2 IDR(PBB)(PBB)(IBB) (6/0/3)
573 (PBB)(IBB)(PBB)(IBB)...
574 >=2 >=2 1 IDRPPPPP IPPPPP IPPPPP (6/18/1)
575 IDRPPPPP IPPPPP IPPPPP...
576 >=2 >=2 >=2 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)} (6/18/3)
577 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)}...
578 {IDR(PBB)(PBB)(IBB)(PBB)} (6/12/3)
579 {IDR(PBB)(PBB)(IBB)(PBB)}...
580 {IDR(PBB)(PBB)} (6/6/3)
584 // General pts/dts strategy:
586 // Getting pts and dts right with variable frame rate (VFR) and B-frames can be a
587 // bit tricky. We assume first of all that the frame rate never goes _above_
588 // MAX_FPS, which gives us a frame period N. The decoder can always decode
589 // in at least this speed, as long at dts <= pts (the frame is not attempted
590 // presented before it is decoded). Furthermore, we never have longer chains of
591 // B-frames than a fixed constant C. (In a B-frame chain, we say that the base
592 // I/P-frame has order O=0, the B-frame depending on it directly has order O=1,
593 // etc. The last frame in the chain, which no B-frames depend on, is the “tip”
594 // frame, with an order O <= C.)
596 // Many strategies are possible, but we establish these rules:
598 // - Tip frames have dts = pts - (C-O)*N.
599 // - Non-tip frames have dts = dts_last + N.
601 // An example, with C=2 and N=10 and the data flow showed with arrows:
604 // pts: 30 40 50 60 70 80
606 // dts: 10 30 20 60 50←40
611 // To show that this works fine also with irregular spacings, let's say that
612 // the third frame is delayed a bit (something earlier was dropped). Now the
613 // situation looks like this:
616 // pts: 30 40 80 90 100 110
618 // dts: 10 30 20 90 50←40
623 // The resetting on every tip frame makes sure dts never ends up lagging a lot
624 // behind pts, and the subtraction of (C-O)*N makes sure pts <= dts.
626 // In the output of this function, if <dts_lag> is >= 0, it means to reset the
627 // dts from the current pts minus <dts_lag>, while if it's -1, the frame is not
628 // a tip frame and should be given a dts based on the previous one.
633 void encoding2display_order(
634 int encoding_order, int intra_period,
635 int intra_idr_period, int ip_period,
636 int *displaying_order,
637 int *frame_type, int *pts_lag)
639 int encoding_order_gop = 0;
643 if (intra_period == 1) { /* all are I/IDR frames */
644 *displaying_order = encoding_order;
645 if (intra_idr_period == 0)
646 *frame_type = (encoding_order == 0)?FRAME_IDR:FRAME_I;
648 *frame_type = (encoding_order % intra_idr_period == 0)?FRAME_IDR:FRAME_I;
652 if (intra_period == 0)
653 intra_idr_period = 0;
655 if (ip_period == 1) {
656 // No B-frames, sequence is like IDR PPPPP IPPPPP.
657 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % intra_idr_period);
658 *displaying_order = encoding_order;
660 if (encoding_order_gop == 0) { /* the first frame */
661 *frame_type = FRAME_IDR;
662 } else if (intra_period != 0 && /* have I frames */
663 encoding_order_gop >= 2 &&
664 (encoding_order_gop % intra_period == 0)) {
665 *frame_type = FRAME_I;
667 *frame_type = FRAME_P;
672 // We have B-frames. Sequence is like IDR (PBB)(PBB)(IBB)(PBB).
673 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % (intra_idr_period + 1));
674 *pts_lag = -1; // Most frames are not tip frames.
676 if (encoding_order_gop == 0) { /* the first frame */
677 *frame_type = FRAME_IDR;
678 *displaying_order = encoding_order;
679 // IDR frames are a special case; I honestly can't find the logic behind
680 // why this is the right thing, but it seems to line up nicely in practice :-)
681 *pts_lag = TIMEBASE / MAX_FPS;
682 } else if (((encoding_order_gop - 1) % ip_period) != 0) { /* B frames */
683 *frame_type = FRAME_B;
684 *displaying_order = encoding_order - 1;
685 if ((encoding_order_gop % ip_period) == 0) {
686 *pts_lag = 0; // Last B-frame.
688 } else if (intra_period != 0 && /* have I frames */
689 encoding_order_gop >= 2 &&
690 ((encoding_order_gop - 1) / ip_period % (intra_period / ip_period)) == 0) {
691 *frame_type = FRAME_I;
692 *displaying_order = encoding_order + ip_period - 1;
694 *frame_type = FRAME_P;
695 *displaying_order = encoding_order + ip_period - 1;
700 static const char *rc_to_string(int rc_mode)
713 case VA_RC_VBR_CONSTRAINED:
714 return "VBR_CONSTRAINED";
720 void QuickSyncEncoderImpl::enable_zerocopy_if_possible()
722 if (global_flags.uncompressed_video_to_http) {
723 fprintf(stderr, "Disabling zerocopy H.264 encoding due to --http-uncompressed-video.\n");
724 use_zerocopy = false;
725 } else if (global_flags.x264_video_to_http) {
726 fprintf(stderr, "Disabling zerocopy H.264 encoding due to --http-x264-video.\n");
727 use_zerocopy = false;
733 VADisplay QuickSyncEncoderImpl::va_open_display(const string &va_display)
735 if (va_display.empty()) {
736 x11_display = XOpenDisplay(NULL);
738 fprintf(stderr, "error: can't connect to X server!\n");
741 enable_zerocopy_if_possible();
742 return vaGetDisplay(x11_display);
743 } else if (va_display[0] != '/') {
744 x11_display = XOpenDisplay(va_display.c_str());
746 fprintf(stderr, "error: can't connect to X server!\n");
749 enable_zerocopy_if_possible();
750 return vaGetDisplay(x11_display);
752 drm_fd = open(va_display.c_str(), O_RDWR);
754 perror(va_display.c_str());
757 use_zerocopy = false;
758 return vaGetDisplayDRM(drm_fd);
762 void QuickSyncEncoderImpl::va_close_display(VADisplay va_dpy)
765 XCloseDisplay(x11_display);
766 x11_display = nullptr;
773 int QuickSyncEncoderImpl::init_va(const string &va_display)
775 VAProfile profile_list[]={VAProfileH264High, VAProfileH264Main, VAProfileH264Baseline, VAProfileH264ConstrainedBaseline};
776 VAEntrypoint *entrypoints;
777 int num_entrypoints, slice_entrypoint;
778 int support_encode = 0;
779 int major_ver, minor_ver;
783 va_dpy = va_open_display(va_display);
784 va_status = vaInitialize(va_dpy, &major_ver, &minor_ver);
785 CHECK_VASTATUS(va_status, "vaInitialize");
787 num_entrypoints = vaMaxNumEntrypoints(va_dpy);
788 entrypoints = (VAEntrypoint *)malloc(num_entrypoints * sizeof(*entrypoints));
790 fprintf(stderr, "error: failed to initialize VA entrypoints array\n");
794 /* use the highest profile */
795 for (i = 0; i < sizeof(profile_list)/sizeof(profile_list[0]); i++) {
796 if ((h264_profile != ~0) && h264_profile != profile_list[i])
799 h264_profile = profile_list[i];
800 vaQueryConfigEntrypoints(va_dpy, h264_profile, entrypoints, &num_entrypoints);
801 for (slice_entrypoint = 0; slice_entrypoint < num_entrypoints; slice_entrypoint++) {
802 if (entrypoints[slice_entrypoint] == VAEntrypointEncSlice) {
807 if (support_encode == 1)
811 if (support_encode == 0) {
812 printf("Can't find VAEntrypointEncSlice for H264 profiles. If you are using a non-Intel GPU\n");
813 printf("but have one in your system, try launching Nageru with --va-display /dev/dri/renderD128\n");
814 printf("to use VA-API against DRM instead of X11.\n");
817 switch (h264_profile) {
818 case VAProfileH264Baseline:
820 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
821 h264_entropy_mode = 0;
823 case VAProfileH264ConstrainedBaseline:
824 constraint_set_flag |= (1 << 0 | 1 << 1); /* Annex A.2.2 */
828 case VAProfileH264Main:
829 constraint_set_flag |= (1 << 1); /* Annex A.2.2 */
832 case VAProfileH264High:
833 constraint_set_flag |= (1 << 3); /* Annex A.2.4 */
836 h264_profile = VAProfileH264Baseline;
838 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
843 VAConfigAttrib attrib[VAConfigAttribTypeMax];
845 /* find out the format for the render target, and rate control mode */
846 for (i = 0; i < VAConfigAttribTypeMax; i++)
847 attrib[i].type = (VAConfigAttribType)i;
849 va_status = vaGetConfigAttributes(va_dpy, h264_profile, VAEntrypointEncSlice,
850 &attrib[0], VAConfigAttribTypeMax);
851 CHECK_VASTATUS(va_status, "vaGetConfigAttributes");
852 /* check the interested configattrib */
853 if ((attrib[VAConfigAttribRTFormat].value & VA_RT_FORMAT_YUV420) == 0) {
854 printf("Not find desired YUV420 RT format\n");
857 config_attrib[config_attrib_num].type = VAConfigAttribRTFormat;
858 config_attrib[config_attrib_num].value = VA_RT_FORMAT_YUV420;
862 if (attrib[VAConfigAttribRateControl].value != VA_ATTRIB_NOT_SUPPORTED) {
863 int tmp = attrib[VAConfigAttribRateControl].value;
865 if (rc_mode == -1 || !(rc_mode & tmp)) {
867 printf("Warning: Don't support the specified RateControl mode: %s!!!, switch to ", rc_to_string(rc_mode));
870 for (i = 0; i < sizeof(rc_default_modes) / sizeof(rc_default_modes[0]); i++) {
871 if (rc_default_modes[i] & tmp) {
872 rc_mode = rc_default_modes[i];
878 config_attrib[config_attrib_num].type = VAConfigAttribRateControl;
879 config_attrib[config_attrib_num].value = rc_mode;
884 if (attrib[VAConfigAttribEncPackedHeaders].value != VA_ATTRIB_NOT_SUPPORTED) {
885 int tmp = attrib[VAConfigAttribEncPackedHeaders].value;
887 h264_packedheader = 1;
888 config_attrib[config_attrib_num].type = VAConfigAttribEncPackedHeaders;
889 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
891 if (tmp & VA_ENC_PACKED_HEADER_SEQUENCE) {
892 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SEQUENCE;
895 if (tmp & VA_ENC_PACKED_HEADER_PICTURE) {
896 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_PICTURE;
899 if (tmp & VA_ENC_PACKED_HEADER_SLICE) {
900 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SLICE;
903 if (tmp & VA_ENC_PACKED_HEADER_MISC) {
904 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_MISC;
907 enc_packed_header_idx = config_attrib_num;
911 if (attrib[VAConfigAttribEncInterlaced].value != VA_ATTRIB_NOT_SUPPORTED) {
912 config_attrib[config_attrib_num].type = VAConfigAttribEncInterlaced;
913 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
917 if (attrib[VAConfigAttribEncMaxRefFrames].value != VA_ATTRIB_NOT_SUPPORTED) {
918 h264_maxref = attrib[VAConfigAttribEncMaxRefFrames].value;
925 int QuickSyncEncoderImpl::setup_encode()
928 VASurfaceID *tmp_surfaceid;
929 int codedbuf_size, i;
930 VASurfaceID src_surface[SURFACE_NUM];
931 VASurfaceID ref_surface[SURFACE_NUM];
933 va_status = vaCreateConfig(va_dpy, h264_profile, VAEntrypointEncSlice,
934 &config_attrib[0], config_attrib_num, &config_id);
935 CHECK_VASTATUS(va_status, "vaCreateConfig");
937 /* create source surfaces */
938 va_status = vaCreateSurfaces(va_dpy,
939 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
940 &src_surface[0], SURFACE_NUM,
942 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
944 /* create reference surfaces */
945 va_status = vaCreateSurfaces(va_dpy,
946 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
947 &ref_surface[0], SURFACE_NUM,
949 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
951 tmp_surfaceid = (VASurfaceID *)calloc(2 * SURFACE_NUM, sizeof(VASurfaceID));
952 memcpy(tmp_surfaceid, src_surface, SURFACE_NUM * sizeof(VASurfaceID));
953 memcpy(tmp_surfaceid + SURFACE_NUM, ref_surface, SURFACE_NUM * sizeof(VASurfaceID));
955 /* Create a context for this encode pipe */
956 va_status = vaCreateContext(va_dpy, config_id,
957 frame_width_mbaligned, frame_height_mbaligned,
959 tmp_surfaceid, 2 * SURFACE_NUM,
961 CHECK_VASTATUS(va_status, "vaCreateContext");
964 codedbuf_size = (frame_width_mbaligned * frame_height_mbaligned * 400) / (16*16);
966 for (i = 0; i < SURFACE_NUM; i++) {
967 /* create coded buffer once for all
968 * other VA buffers which won't be used again after vaRenderPicture.
969 * so APP can always vaCreateBuffer for every frame
970 * but coded buffer need to be mapped and accessed after vaRenderPicture/vaEndPicture
971 * so VA won't maintain the coded buffer
973 va_status = vaCreateBuffer(va_dpy, context_id, VAEncCodedBufferType,
974 codedbuf_size, 1, NULL, &gl_surfaces[i].coded_buf);
975 CHECK_VASTATUS(va_status, "vaCreateBuffer");
978 /* create OpenGL objects */
979 //glGenFramebuffers(SURFACE_NUM, fbos);
981 for (i = 0; i < SURFACE_NUM; i++) {
983 gl_surfaces[i].y_tex = resource_pool->create_2d_texture(GL_R8, 1, 1);
984 gl_surfaces[i].cbcr_tex = resource_pool->create_2d_texture(GL_RG8, 1, 1);
986 gl_surfaces[i].y_tex = resource_pool->create_2d_texture(GL_R8, frame_width, frame_height);
987 gl_surfaces[i].cbcr_tex = resource_pool->create_2d_texture(GL_RG8, frame_width / 2, frame_height / 2);
989 // Generate a PBO to read into. It doesn't necessarily fit 1:1 with the VA-API
990 // buffers, due to potentially differing pitch.
991 glGenBuffers(1, &gl_surfaces[i].pbo);
992 glBindBuffer(GL_PIXEL_PACK_BUFFER, gl_surfaces[i].pbo);
993 glBufferStorage(GL_PIXEL_PACK_BUFFER, frame_width * frame_height * 2, nullptr, GL_MAP_READ_BIT | GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT);
994 uint8_t *ptr = (uint8_t *)glMapBufferRange(GL_PIXEL_PACK_BUFFER, 0, frame_width * frame_height * 2, GL_MAP_READ_BIT | GL_MAP_PERSISTENT_BIT);
995 gl_surfaces[i].y_offset = 0;
996 gl_surfaces[i].cbcr_offset = frame_width * frame_height;
997 gl_surfaces[i].y_ptr = ptr + gl_surfaces[i].y_offset;
998 gl_surfaces[i].cbcr_ptr = ptr + gl_surfaces[i].cbcr_offset;
999 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1003 for (i = 0; i < SURFACE_NUM; i++) {
1004 gl_surfaces[i].src_surface = src_surface[i];
1005 gl_surfaces[i].ref_surface = ref_surface[i];
1011 // Given a list like 1 9 3 0 2 8 4 and a pivot element 3, will produce
1014 template<class T, class C>
1015 static void sort_two(T *begin, T *end, const T &pivot, const C &less_than)
1017 T *middle = partition(begin, end, [&](const T &elem) { return less_than(elem, pivot); });
1018 sort(begin, middle, [&](const T &a, const T &b) { return less_than(b, a); });
1019 sort(middle, end, less_than);
1022 void QuickSyncEncoderImpl::update_ReferenceFrames(int frame_type)
1026 if (frame_type == FRAME_B)
1029 CurrentCurrPic.flags = VA_PICTURE_H264_SHORT_TERM_REFERENCE;
1031 if (numShortTerm > num_ref_frames)
1032 numShortTerm = num_ref_frames;
1033 for (i=numShortTerm-1; i>0; i--)
1034 ReferenceFrames[i] = ReferenceFrames[i-1];
1035 ReferenceFrames[0] = CurrentCurrPic;
1037 current_frame_num++;
1038 if (current_frame_num > MaxFrameNum)
1039 current_frame_num = 0;
1043 int QuickSyncEncoderImpl::update_RefPicList(int frame_type)
1045 const auto descending_by_frame_idx = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1046 return a.frame_idx > b.frame_idx;
1048 const auto ascending_by_top_field_order_cnt = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1049 return a.TopFieldOrderCnt < b.TopFieldOrderCnt;
1051 const auto descending_by_top_field_order_cnt = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1052 return a.TopFieldOrderCnt > b.TopFieldOrderCnt;
1055 if (frame_type == FRAME_P) {
1056 memcpy(RefPicList0_P, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1057 sort(&RefPicList0_P[0], &RefPicList0_P[numShortTerm], descending_by_frame_idx);
1058 } else if (frame_type == FRAME_B) {
1059 memcpy(RefPicList0_B, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1060 sort_two(&RefPicList0_B[0], &RefPicList0_B[numShortTerm], CurrentCurrPic, ascending_by_top_field_order_cnt);
1062 memcpy(RefPicList1_B, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1063 sort_two(&RefPicList1_B[0], &RefPicList1_B[numShortTerm], CurrentCurrPic, descending_by_top_field_order_cnt);
1070 int QuickSyncEncoderImpl::render_sequence()
1072 VABufferID seq_param_buf, rc_param_buf, render_id[2];
1074 VAEncMiscParameterBuffer *misc_param;
1075 VAEncMiscParameterRateControl *misc_rate_ctrl;
1077 seq_param.level_idc = 41 /*SH_LEVEL_3*/;
1078 seq_param.picture_width_in_mbs = frame_width_mbaligned / 16;
1079 seq_param.picture_height_in_mbs = frame_height_mbaligned / 16;
1080 seq_param.bits_per_second = frame_bitrate;
1082 seq_param.intra_period = intra_period;
1083 seq_param.intra_idr_period = intra_idr_period;
1084 seq_param.ip_period = ip_period;
1086 seq_param.max_num_ref_frames = num_ref_frames;
1087 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1088 seq_param.time_scale = TIMEBASE * 2;
1089 seq_param.num_units_in_tick = 1; /* Tc = num_units_in_tick / scale */
1090 seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 = Log2MaxPicOrderCntLsb - 4;
1091 seq_param.seq_fields.bits.log2_max_frame_num_minus4 = Log2MaxFrameNum - 4;;
1092 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1093 seq_param.seq_fields.bits.chroma_format_idc = 1;
1094 seq_param.seq_fields.bits.direct_8x8_inference_flag = 1;
1096 if (frame_width != frame_width_mbaligned ||
1097 frame_height != frame_height_mbaligned) {
1098 seq_param.frame_cropping_flag = 1;
1099 seq_param.frame_crop_left_offset = 0;
1100 seq_param.frame_crop_right_offset = (frame_width_mbaligned - frame_width)/2;
1101 seq_param.frame_crop_top_offset = 0;
1102 seq_param.frame_crop_bottom_offset = (frame_height_mbaligned - frame_height)/2;
1105 va_status = vaCreateBuffer(va_dpy, context_id,
1106 VAEncSequenceParameterBufferType,
1107 sizeof(seq_param), 1, &seq_param, &seq_param_buf);
1108 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1110 va_status = vaCreateBuffer(va_dpy, context_id,
1111 VAEncMiscParameterBufferType,
1112 sizeof(VAEncMiscParameterBuffer) + sizeof(VAEncMiscParameterRateControl),
1113 1, NULL, &rc_param_buf);
1114 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1116 vaMapBuffer(va_dpy, rc_param_buf, (void **)&misc_param);
1117 misc_param->type = VAEncMiscParameterTypeRateControl;
1118 misc_rate_ctrl = (VAEncMiscParameterRateControl *)misc_param->data;
1119 memset(misc_rate_ctrl, 0, sizeof(*misc_rate_ctrl));
1120 misc_rate_ctrl->bits_per_second = frame_bitrate;
1121 misc_rate_ctrl->target_percentage = 66;
1122 misc_rate_ctrl->window_size = 1000;
1123 misc_rate_ctrl->initial_qp = initial_qp;
1124 misc_rate_ctrl->min_qp = minimal_qp;
1125 misc_rate_ctrl->basic_unit_size = 0;
1126 vaUnmapBuffer(va_dpy, rc_param_buf);
1128 render_id[0] = seq_param_buf;
1129 render_id[1] = rc_param_buf;
1131 render_picture_and_delete(va_dpy, context_id, &render_id[0], 2);
1136 static int calc_poc(int pic_order_cnt_lsb, int frame_type)
1138 static int PicOrderCntMsb_ref = 0, pic_order_cnt_lsb_ref = 0;
1139 int prevPicOrderCntMsb, prevPicOrderCntLsb;
1140 int PicOrderCntMsb, TopFieldOrderCnt;
1142 if (frame_type == FRAME_IDR)
1143 prevPicOrderCntMsb = prevPicOrderCntLsb = 0;
1145 prevPicOrderCntMsb = PicOrderCntMsb_ref;
1146 prevPicOrderCntLsb = pic_order_cnt_lsb_ref;
1149 if ((pic_order_cnt_lsb < prevPicOrderCntLsb) &&
1150 ((prevPicOrderCntLsb - pic_order_cnt_lsb) >= (int)(MaxPicOrderCntLsb / 2)))
1151 PicOrderCntMsb = prevPicOrderCntMsb + MaxPicOrderCntLsb;
1152 else if ((pic_order_cnt_lsb > prevPicOrderCntLsb) &&
1153 ((pic_order_cnt_lsb - prevPicOrderCntLsb) > (int)(MaxPicOrderCntLsb / 2)))
1154 PicOrderCntMsb = prevPicOrderCntMsb - MaxPicOrderCntLsb;
1156 PicOrderCntMsb = prevPicOrderCntMsb;
1158 TopFieldOrderCnt = PicOrderCntMsb + pic_order_cnt_lsb;
1160 if (frame_type != FRAME_B) {
1161 PicOrderCntMsb_ref = PicOrderCntMsb;
1162 pic_order_cnt_lsb_ref = pic_order_cnt_lsb;
1165 return TopFieldOrderCnt;
1168 int QuickSyncEncoderImpl::render_picture(int frame_type, int display_frame_num, int gop_start_display_frame_num)
1170 VABufferID pic_param_buf;
1174 pic_param.CurrPic.picture_id = gl_surfaces[display_frame_num % SURFACE_NUM].ref_surface;
1175 pic_param.CurrPic.frame_idx = current_frame_num;
1176 pic_param.CurrPic.flags = 0;
1177 pic_param.CurrPic.TopFieldOrderCnt = calc_poc((display_frame_num - gop_start_display_frame_num) % MaxPicOrderCntLsb, frame_type);
1178 pic_param.CurrPic.BottomFieldOrderCnt = pic_param.CurrPic.TopFieldOrderCnt;
1179 CurrentCurrPic = pic_param.CurrPic;
1181 memcpy(pic_param.ReferenceFrames, ReferenceFrames, numShortTerm*sizeof(VAPictureH264));
1182 for (i = numShortTerm; i < MAX_NUM_REF1; i++) {
1183 pic_param.ReferenceFrames[i].picture_id = VA_INVALID_SURFACE;
1184 pic_param.ReferenceFrames[i].flags = VA_PICTURE_H264_INVALID;
1187 pic_param.pic_fields.bits.idr_pic_flag = (frame_type == FRAME_IDR);
1188 pic_param.pic_fields.bits.reference_pic_flag = (frame_type != FRAME_B);
1189 pic_param.pic_fields.bits.entropy_coding_mode_flag = h264_entropy_mode;
1190 pic_param.pic_fields.bits.deblocking_filter_control_present_flag = 1;
1191 pic_param.frame_num = current_frame_num;
1192 pic_param.coded_buf = gl_surfaces[display_frame_num % SURFACE_NUM].coded_buf;
1193 pic_param.last_picture = false; // FIXME
1194 pic_param.pic_init_qp = initial_qp;
1196 va_status = vaCreateBuffer(va_dpy, context_id, VAEncPictureParameterBufferType,
1197 sizeof(pic_param), 1, &pic_param, &pic_param_buf);
1198 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1200 render_picture_and_delete(va_dpy, context_id, &pic_param_buf, 1);
1205 int QuickSyncEncoderImpl::render_packedsequence()
1207 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1208 VABufferID packedseq_para_bufid, packedseq_data_bufid, render_id[2];
1209 unsigned int length_in_bits;
1210 unsigned char *packedseq_buffer = NULL;
1213 length_in_bits = build_packed_seq_buffer(&packedseq_buffer);
1215 packedheader_param_buffer.type = VAEncPackedHeaderSequence;
1217 packedheader_param_buffer.bit_length = length_in_bits; /*length_in_bits*/
1218 packedheader_param_buffer.has_emulation_bytes = 0;
1219 va_status = vaCreateBuffer(va_dpy,
1221 VAEncPackedHeaderParameterBufferType,
1222 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1223 &packedseq_para_bufid);
1224 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1226 va_status = vaCreateBuffer(va_dpy,
1228 VAEncPackedHeaderDataBufferType,
1229 (length_in_bits + 7) / 8, 1, packedseq_buffer,
1230 &packedseq_data_bufid);
1231 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1233 render_id[0] = packedseq_para_bufid;
1234 render_id[1] = packedseq_data_bufid;
1235 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1237 free(packedseq_buffer);
1243 int QuickSyncEncoderImpl::render_packedpicture()
1245 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1246 VABufferID packedpic_para_bufid, packedpic_data_bufid, render_id[2];
1247 unsigned int length_in_bits;
1248 unsigned char *packedpic_buffer = NULL;
1251 length_in_bits = build_packed_pic_buffer(&packedpic_buffer);
1252 packedheader_param_buffer.type = VAEncPackedHeaderPicture;
1253 packedheader_param_buffer.bit_length = length_in_bits;
1254 packedheader_param_buffer.has_emulation_bytes = 0;
1256 va_status = vaCreateBuffer(va_dpy,
1258 VAEncPackedHeaderParameterBufferType,
1259 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1260 &packedpic_para_bufid);
1261 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1263 va_status = vaCreateBuffer(va_dpy,
1265 VAEncPackedHeaderDataBufferType,
1266 (length_in_bits + 7) / 8, 1, packedpic_buffer,
1267 &packedpic_data_bufid);
1268 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1270 render_id[0] = packedpic_para_bufid;
1271 render_id[1] = packedpic_data_bufid;
1272 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1274 free(packedpic_buffer);
1279 void QuickSyncEncoderImpl::render_packedslice()
1281 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1282 VABufferID packedslice_para_bufid, packedslice_data_bufid, render_id[2];
1283 unsigned int length_in_bits;
1284 unsigned char *packedslice_buffer = NULL;
1287 length_in_bits = build_packed_slice_buffer(&packedslice_buffer);
1288 packedheader_param_buffer.type = VAEncPackedHeaderSlice;
1289 packedheader_param_buffer.bit_length = length_in_bits;
1290 packedheader_param_buffer.has_emulation_bytes = 0;
1292 va_status = vaCreateBuffer(va_dpy,
1294 VAEncPackedHeaderParameterBufferType,
1295 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1296 &packedslice_para_bufid);
1297 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1299 va_status = vaCreateBuffer(va_dpy,
1301 VAEncPackedHeaderDataBufferType,
1302 (length_in_bits + 7) / 8, 1, packedslice_buffer,
1303 &packedslice_data_bufid);
1304 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1306 render_id[0] = packedslice_para_bufid;
1307 render_id[1] = packedslice_data_bufid;
1308 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1310 free(packedslice_buffer);
1313 int QuickSyncEncoderImpl::render_slice(int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num, int frame_type)
1315 VABufferID slice_param_buf;
1319 update_RefPicList(frame_type);
1321 /* one frame, one slice */
1322 slice_param.macroblock_address = 0;
1323 slice_param.num_macroblocks = frame_width_mbaligned * frame_height_mbaligned/(16*16); /* Measured by MB */
1324 slice_param.slice_type = (frame_type == FRAME_IDR)?2:frame_type;
1325 if (frame_type == FRAME_IDR) {
1326 if (encoding_frame_num != 0)
1327 ++slice_param.idr_pic_id;
1328 } else if (frame_type == FRAME_P) {
1329 int refpiclist0_max = h264_maxref & 0xffff;
1330 memcpy(slice_param.RefPicList0, RefPicList0_P, refpiclist0_max*sizeof(VAPictureH264));
1332 for (i = refpiclist0_max; i < MAX_NUM_REF2; i++) {
1333 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1334 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1336 } else if (frame_type == FRAME_B) {
1337 int refpiclist0_max = h264_maxref & 0xffff;
1338 int refpiclist1_max = (h264_maxref >> 16) & 0xffff;
1340 memcpy(slice_param.RefPicList0, RefPicList0_B, refpiclist0_max*sizeof(VAPictureH264));
1341 for (i = refpiclist0_max; i < MAX_NUM_REF2; i++) {
1342 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1343 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1346 memcpy(slice_param.RefPicList1, RefPicList1_B, refpiclist1_max*sizeof(VAPictureH264));
1347 for (i = refpiclist1_max; i < MAX_NUM_REF2; i++) {
1348 slice_param.RefPicList1[i].picture_id = VA_INVALID_SURFACE;
1349 slice_param.RefPicList1[i].flags = VA_PICTURE_H264_INVALID;
1353 slice_param.slice_alpha_c0_offset_div2 = 0;
1354 slice_param.slice_beta_offset_div2 = 0;
1355 slice_param.direct_spatial_mv_pred_flag = 1;
1356 slice_param.pic_order_cnt_lsb = (display_frame_num - gop_start_display_frame_num) % MaxPicOrderCntLsb;
1359 if (h264_packedheader &&
1360 config_attrib[enc_packed_header_idx].value & VA_ENC_PACKED_HEADER_SLICE)
1361 render_packedslice();
1363 va_status = vaCreateBuffer(va_dpy, context_id, VAEncSliceParameterBufferType,
1364 sizeof(slice_param), 1, &slice_param, &slice_param_buf);
1365 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1367 render_picture_and_delete(va_dpy, context_id, &slice_param_buf, 1);
1374 void QuickSyncEncoderImpl::save_codeddata(storage_task task)
1376 VACodedBufferSegment *buf_list = NULL;
1381 va_status = vaMapBuffer(va_dpy, gl_surfaces[task.display_order % SURFACE_NUM].coded_buf, (void **)(&buf_list));
1382 CHECK_VASTATUS(va_status, "vaMapBuffer");
1383 while (buf_list != NULL) {
1384 data.append(reinterpret_cast<const char *>(buf_list->buf), buf_list->size);
1385 buf_list = (VACodedBufferSegment *) buf_list->next;
1387 vaUnmapBuffer(va_dpy, gl_surfaces[task.display_order % SURFACE_NUM].coded_buf);
1389 static int frameno = 0;
1390 print_latency("Current QuickSync latency (video inputs → disk mux):",
1391 task.received_ts, (task.frame_type == FRAME_B), &frameno);
1396 memset(&pkt, 0, sizeof(pkt));
1398 pkt.data = reinterpret_cast<uint8_t *>(&data[0]);
1399 pkt.size = data.size();
1400 pkt.stream_index = 0;
1401 if (task.frame_type == FRAME_IDR) {
1402 pkt.flags = AV_PKT_FLAG_KEY;
1406 pkt.duration = task.duration;
1408 file_mux->add_packet(pkt, task.pts + global_delay(), task.dts + global_delay());
1410 if (!global_flags.uncompressed_video_to_http &&
1411 !global_flags.x264_video_to_http) {
1412 stream_mux->add_packet(pkt, task.pts + global_delay(), task.dts + global_delay());
1418 // this is weird. but it seems to put a new frame onto the queue
1419 void QuickSyncEncoderImpl::storage_task_enqueue(storage_task task)
1421 unique_lock<mutex> lock(storage_task_queue_mutex);
1422 storage_task_queue.push(move(task));
1423 storage_task_queue_changed.notify_all();
1426 void QuickSyncEncoderImpl::storage_task_thread()
1429 storage_task current;
1431 // wait until there's an encoded frame
1432 unique_lock<mutex> lock(storage_task_queue_mutex);
1433 storage_task_queue_changed.wait(lock, [this]{ return storage_thread_should_quit || !storage_task_queue.empty(); });
1434 if (storage_thread_should_quit && storage_task_queue.empty()) return;
1435 current = move(storage_task_queue.front());
1436 storage_task_queue.pop();
1441 // waits for data, then saves it to disk.
1442 va_status = vaSyncSurface(va_dpy, gl_surfaces[current.display_order % SURFACE_NUM].src_surface);
1443 CHECK_VASTATUS(va_status, "vaSyncSurface");
1444 save_codeddata(move(current));
1447 unique_lock<mutex> lock(storage_task_queue_mutex);
1448 srcsurface_status[current.display_order % SURFACE_NUM] = SRC_SURFACE_FREE;
1449 storage_task_queue_changed.notify_all();
1454 void QuickSyncEncoderImpl::release_encode()
1456 for (unsigned i = 0; i < SURFACE_NUM; i++) {
1457 vaDestroyBuffer(va_dpy, gl_surfaces[i].coded_buf);
1458 vaDestroySurfaces(va_dpy, &gl_surfaces[i].src_surface, 1);
1459 vaDestroySurfaces(va_dpy, &gl_surfaces[i].ref_surface, 1);
1462 vaDestroyContext(va_dpy, context_id);
1463 vaDestroyConfig(va_dpy, config_id);
1466 void QuickSyncEncoderImpl::release_gl_resources()
1468 assert(is_shutdown);
1469 if (has_released_gl_resources) {
1473 for (unsigned i = 0; i < SURFACE_NUM; i++) {
1474 if (!use_zerocopy) {
1475 glBindBuffer(GL_PIXEL_PACK_BUFFER, gl_surfaces[i].pbo);
1476 glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
1477 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1478 glDeleteBuffers(1, &gl_surfaces[i].pbo);
1480 resource_pool->release_2d_texture(gl_surfaces[i].y_tex);
1481 resource_pool->release_2d_texture(gl_surfaces[i].cbcr_tex);
1484 has_released_gl_resources = true;
1487 int QuickSyncEncoderImpl::deinit_va()
1489 vaTerminate(va_dpy);
1491 va_close_display(va_dpy);
1496 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)
1497 : 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)
1499 file_audio_encoder.reset(new AudioEncoder(AUDIO_OUTPUT_CODEC_NAME, DEFAULT_AUDIO_OUTPUT_BIT_RATE, oformat));
1500 open_output_file(filename);
1501 file_audio_encoder->add_mux(file_mux.get());
1503 frame_width_mbaligned = (frame_width + 15) & (~15);
1504 frame_height_mbaligned = (frame_height + 15) & (~15);
1508 if (global_flags.x264_video_to_http) {
1509 assert(x264_encoder != nullptr);
1511 assert(x264_encoder == nullptr);
1514 init_va(va_display);
1517 // No frames are ready yet.
1518 memset(srcsurface_status, SRC_SURFACE_FREE, sizeof(srcsurface_status));
1520 memset(&seq_param, 0, sizeof(seq_param));
1521 memset(&pic_param, 0, sizeof(pic_param));
1522 memset(&slice_param, 0, sizeof(slice_param));
1524 storage_thread = thread(&QuickSyncEncoderImpl::storage_task_thread, this);
1526 encode_thread = thread([this]{
1527 //SDL_GL_MakeCurrent(window, context);
1528 QOpenGLContext *context = create_context(this->surface);
1529 eglBindAPI(EGL_OPENGL_API);
1530 if (!make_current(context, this->surface)) {
1531 printf("display=%p surface=%p context=%p curr=%p err=%d\n", eglGetCurrentDisplay(), this->surface, context, eglGetCurrentContext(),
1535 encode_thread_func();
1536 delete_context(context);
1540 QuickSyncEncoderImpl::~QuickSyncEncoderImpl()
1543 release_gl_resources();
1546 bool QuickSyncEncoderImpl::begin_frame(GLuint *y_tex, GLuint *cbcr_tex)
1548 assert(!is_shutdown);
1550 // Wait until this frame slot is done encoding.
1551 unique_lock<mutex> lock(storage_task_queue_mutex);
1552 if (srcsurface_status[current_storage_frame % SURFACE_NUM] != SRC_SURFACE_FREE) {
1553 fprintf(stderr, "Warning: Slot %d (for frame %d) is still encoding, rendering has to wait for H.264 encoder\n",
1554 current_storage_frame % SURFACE_NUM, current_storage_frame);
1556 storage_task_queue_changed.wait(lock, [this]{ return storage_thread_should_quit || (srcsurface_status[current_storage_frame % SURFACE_NUM] == SRC_SURFACE_FREE); });
1557 srcsurface_status[current_storage_frame % SURFACE_NUM] = SRC_SURFACE_IN_ENCODING;
1558 if (storage_thread_should_quit) return false;
1561 //*fbo = fbos[current_storage_frame % SURFACE_NUM];
1562 GLSurface *surf = &gl_surfaces[current_storage_frame % SURFACE_NUM];
1563 *y_tex = surf->y_tex;
1564 *cbcr_tex = surf->cbcr_tex;
1566 VAStatus va_status = vaDeriveImage(va_dpy, surf->src_surface, &surf->surface_image);
1567 CHECK_VASTATUS(va_status, "vaDeriveImage");
1570 VABufferInfo buf_info;
1571 buf_info.mem_type = VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME; // or VA_SURFACE_ATTRIB_MEM_TYPE_KERNEL_DRM?
1572 va_status = vaAcquireBufferHandle(va_dpy, surf->surface_image.buf, &buf_info);
1573 CHECK_VASTATUS(va_status, "vaAcquireBufferHandle");
1576 surf->y_egl_image = EGL_NO_IMAGE_KHR;
1577 EGLint y_attribs[] = {
1578 EGL_WIDTH, frame_width,
1579 EGL_HEIGHT, frame_height,
1580 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('R', '8', ' ', ' '),
1581 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
1582 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[0]),
1583 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[0]),
1587 surf->y_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, y_attribs);
1588 assert(surf->y_egl_image != EGL_NO_IMAGE_KHR);
1590 // Associate Y image to a texture.
1591 glBindTexture(GL_TEXTURE_2D, *y_tex);
1592 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->y_egl_image);
1594 // Create CbCr image.
1595 surf->cbcr_egl_image = EGL_NO_IMAGE_KHR;
1596 EGLint cbcr_attribs[] = {
1597 EGL_WIDTH, frame_width,
1598 EGL_HEIGHT, frame_height,
1599 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('G', 'R', '8', '8'),
1600 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
1601 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[1]),
1602 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[1]),
1606 surf->cbcr_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, cbcr_attribs);
1607 assert(surf->cbcr_egl_image != EGL_NO_IMAGE_KHR);
1609 // Associate CbCr image to a texture.
1610 glBindTexture(GL_TEXTURE_2D, *cbcr_tex);
1611 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->cbcr_egl_image);
1617 void QuickSyncEncoderImpl::add_audio(int64_t pts, vector<float> audio)
1619 assert(!is_shutdown);
1620 file_audio_encoder->encode_audio(audio, pts + global_delay());
1623 RefCountedGLsync QuickSyncEncoderImpl::end_frame(int64_t pts, int64_t duration, const vector<RefCountedFrame> &input_frames)
1625 assert(!is_shutdown);
1627 if (!use_zerocopy) {
1628 GLSurface *surf = &gl_surfaces[current_storage_frame % SURFACE_NUM];
1630 glPixelStorei(GL_PACK_ROW_LENGTH, 0);
1633 glBindBuffer(GL_PIXEL_PACK_BUFFER, surf->pbo);
1636 glBindTexture(GL_TEXTURE_2D, surf->y_tex);
1638 glGetTexImage(GL_TEXTURE_2D, 0, GL_RED, GL_UNSIGNED_BYTE, BUFFER_OFFSET(surf->y_offset));
1641 glBindTexture(GL_TEXTURE_2D, surf->cbcr_tex);
1643 glGetTexImage(GL_TEXTURE_2D, 0, GL_RG, GL_UNSIGNED_BYTE, BUFFER_OFFSET(surf->cbcr_offset));
1646 glBindTexture(GL_TEXTURE_2D, 0);
1648 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1651 glMemoryBarrier(GL_TEXTURE_UPDATE_BARRIER_BIT | GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT);
1655 RefCountedGLsync fence = RefCountedGLsync(GL_SYNC_GPU_COMMANDS_COMPLETE, /*flags=*/0);
1657 glFlush(); // Make the H.264 thread see the fence as soon as possible.
1661 unique_lock<mutex> lock(frame_queue_mutex);
1662 pending_video_frames.push(PendingFrame{ fence, input_frames, pts, duration });
1663 ++current_storage_frame;
1665 frame_queue_nonempty.notify_all();
1669 void QuickSyncEncoderImpl::shutdown()
1676 unique_lock<mutex> lock(frame_queue_mutex);
1677 encode_thread_should_quit = true;
1678 frame_queue_nonempty.notify_all();
1680 encode_thread.join();
1682 unique_lock<mutex> lock(storage_task_queue_mutex);
1683 storage_thread_should_quit = true;
1684 frame_queue_nonempty.notify_all();
1685 storage_task_queue_changed.notify_all();
1687 storage_thread.join();
1689 // Encode any leftover audio in the queues, and also any delayed frames.
1690 file_audio_encoder->encode_last_audio();
1698 void QuickSyncEncoderImpl::open_output_file(const std::string &filename)
1700 AVFormatContext *avctx = avformat_alloc_context();
1701 avctx->oformat = av_guess_format(NULL, filename.c_str(), NULL);
1702 assert(filename.size() < sizeof(avctx->filename) - 1);
1703 strcpy(avctx->filename, filename.c_str());
1705 string url = "file:" + filename;
1706 int ret = avio_open2(&avctx->pb, url.c_str(), AVIO_FLAG_WRITE, &avctx->interrupt_callback, NULL);
1708 char tmp[AV_ERROR_MAX_STRING_SIZE];
1709 fprintf(stderr, "%s: avio_open2() failed: %s\n", filename.c_str(), av_make_error_string(tmp, sizeof(tmp), ret));
1713 string video_extradata = ""; // FIXME: See other comment about global headers.
1714 AVCodecParametersWithDeleter audio_codecpar = file_audio_encoder->get_codec_parameters();
1715 file_mux.reset(new Mux(avctx, frame_width, frame_height, Mux::CODEC_H264, video_extradata, audio_codecpar.get(), TIMEBASE,
1716 std::bind(&DiskSpaceEstimator::report_write, disk_space_estimator, filename, _1)));
1719 void QuickSyncEncoderImpl::encode_thread_func()
1721 int64_t last_dts = -1;
1722 int gop_start_display_frame_num = 0;
1723 for (int display_frame_num = 0; ; ++display_frame_num) {
1724 // Wait for the frame to be in the queue. Note that this only means
1725 // we started rendering it.
1728 unique_lock<mutex> lock(frame_queue_mutex);
1729 frame_queue_nonempty.wait(lock, [this]{
1730 return encode_thread_should_quit || !pending_video_frames.empty();
1732 if (encode_thread_should_quit && pending_video_frames.empty()) {
1733 // We may have queued frames left in the reorder buffer
1734 // that were supposed to be B-frames, but have no P-frame
1735 // to be encoded against. If so, encode them all as
1736 // P-frames instead. Note that this happens under the mutex,
1737 // but nobody else uses it at this point, since we're shutting down,
1738 // so there's no contention.
1739 encode_remaining_frames_as_p(quicksync_encoding_frame_num, gop_start_display_frame_num, last_dts);
1742 frame = move(pending_video_frames.front());
1743 pending_video_frames.pop();
1747 // Pass the frame on to x264 (or uncompressed to HTTP) as needed.
1748 // Note that this implicitly waits for the frame to be done rendering.
1749 pass_frame(frame, display_frame_num, frame.pts, frame.duration);
1750 reorder_buffer[display_frame_num] = move(frame);
1752 // Now encode as many QuickSync frames as we can using the frames we have available.
1753 // (It could be zero, or it could be multiple.) FIXME: make a function.
1756 int frame_type, quicksync_display_frame_num;
1757 encoding2display_order(quicksync_encoding_frame_num, intra_period, intra_idr_period, ip_period,
1758 &quicksync_display_frame_num, &frame_type, &pts_lag);
1759 if (!reorder_buffer.count(quicksync_display_frame_num)) {
1762 frame = move(reorder_buffer[quicksync_display_frame_num]);
1763 reorder_buffer.erase(quicksync_display_frame_num);
1765 if (frame_type == FRAME_IDR) {
1767 current_frame_num = 0;
1768 gop_start_display_frame_num = quicksync_display_frame_num;
1771 // Determine the dts of this frame.
1773 if (pts_lag == -1) {
1774 assert(last_dts != -1);
1775 dts = last_dts + (TIMEBASE / MAX_FPS);
1777 dts = frame.pts - pts_lag;
1781 encode_frame(frame, quicksync_encoding_frame_num, quicksync_display_frame_num, gop_start_display_frame_num, frame_type, frame.pts, dts, frame.duration);
1782 ++quicksync_encoding_frame_num;
1787 void QuickSyncEncoderImpl::encode_remaining_frames_as_p(int encoding_frame_num, int gop_start_display_frame_num, int64_t last_dts)
1789 if (reorder_buffer.empty()) {
1793 for (auto &pending_frame : reorder_buffer) {
1794 int display_frame_num = pending_frame.first;
1795 assert(display_frame_num > 0);
1796 PendingFrame frame = move(pending_frame.second);
1797 int64_t dts = last_dts + (TIMEBASE / MAX_FPS);
1798 printf("Finalizing encode: Encoding leftover frame %d as P-frame instead of B-frame.\n", display_frame_num);
1799 encode_frame(frame, encoding_frame_num++, display_frame_num, gop_start_display_frame_num, FRAME_P, frame.pts, dts, frame.duration);
1804 void QuickSyncEncoderImpl::add_packet_for_uncompressed_frame(int64_t pts, int64_t duration, const uint8_t *data)
1807 memset(&pkt, 0, sizeof(pkt));
1809 pkt.data = const_cast<uint8_t *>(data);
1810 pkt.size = frame_width * frame_height * 2;
1811 pkt.stream_index = 0;
1812 pkt.flags = AV_PKT_FLAG_KEY;
1813 pkt.duration = duration;
1814 stream_mux->add_packet(pkt, pts, pts);
1819 void memcpy_with_pitch(uint8_t *dst, const uint8_t *src, size_t src_width, size_t dst_pitch, size_t height)
1821 if (src_width == dst_pitch) {
1822 memcpy(dst, src, src_width * height);
1824 for (size_t y = 0; y < height; ++y) {
1825 const uint8_t *sptr = src + y * src_width;
1826 uint8_t *dptr = dst + y * dst_pitch;
1827 memcpy(dptr, sptr, src_width);
1832 ReceivedTimestamps find_received_timestamp(const vector<RefCountedFrame> &input_frames)
1834 // Find min and max timestamp of all input frames that have a timestamp.
1835 steady_clock::time_point min_ts = steady_clock::time_point::max(), max_ts = steady_clock::time_point::min();
1836 for (const RefCountedFrame &input_frame : input_frames) {
1837 if (input_frame && input_frame->received_timestamp > steady_clock::time_point::min()) {
1838 min_ts = min(min_ts, input_frame->received_timestamp);
1839 max_ts = max(max_ts, input_frame->received_timestamp);
1842 return { min_ts, max_ts };
1847 void QuickSyncEncoderImpl::pass_frame(QuickSyncEncoderImpl::PendingFrame frame, int display_frame_num, int64_t pts, int64_t duration)
1849 // Wait for the GPU to be done with the frame.
1852 sync_status = glClientWaitSync(frame.fence.get(), 0, 1000000000);
1854 } while (sync_status == GL_TIMEOUT_EXPIRED);
1855 assert(sync_status != GL_WAIT_FAILED);
1857 ReceivedTimestamps received_ts = find_received_timestamp(frame.input_frames);
1858 static int frameno = 0;
1859 print_latency("Current mixer latency (video inputs → ready for encode):",
1860 received_ts, false, &frameno);
1862 // Release back any input frames we needed to render this frame.
1863 frame.input_frames.clear();
1865 GLSurface *surf = &gl_surfaces[display_frame_num % SURFACE_NUM];
1866 uint8_t *data = reinterpret_cast<uint8_t *>(surf->y_ptr);
1867 if (global_flags.uncompressed_video_to_http) {
1868 add_packet_for_uncompressed_frame(pts, duration, data);
1869 } else if (global_flags.x264_video_to_http) {
1870 x264_encoder->add_frame(pts, duration, data, received_ts);
1874 void QuickSyncEncoderImpl::encode_frame(QuickSyncEncoderImpl::PendingFrame frame, int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num,
1875 int frame_type, int64_t pts, int64_t dts, int64_t duration)
1877 const ReceivedTimestamps received_ts = find_received_timestamp(frame.input_frames);
1879 GLSurface *surf = &gl_surfaces[display_frame_num % SURFACE_NUM];
1883 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->y_egl_image);
1884 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->cbcr_egl_image);
1885 va_status = vaReleaseBufferHandle(va_dpy, surf->surface_image.buf);
1886 CHECK_VASTATUS(va_status, "vaReleaseBufferHandle");
1888 // Upload the frame to VA-API.
1889 unsigned char *surface_p = nullptr;
1890 vaMapBuffer(va_dpy, surf->surface_image.buf, (void **)&surface_p);
1892 unsigned char *va_y_ptr = (unsigned char *)surface_p + surf->surface_image.offsets[0];
1893 memcpy_with_pitch(va_y_ptr, surf->y_ptr, frame_width, surf->surface_image.pitches[0], frame_height);
1895 unsigned char *va_cbcr_ptr = (unsigned char *)surface_p + surf->surface_image.offsets[1];
1896 memcpy_with_pitch(va_cbcr_ptr, surf->cbcr_ptr, (frame_width / 2) * sizeof(uint16_t), surf->surface_image.pitches[1], frame_height / 2);
1898 va_status = vaUnmapBuffer(va_dpy, surf->surface_image.buf);
1899 CHECK_VASTATUS(va_status, "vaUnmapBuffer");
1902 va_status = vaDestroyImage(va_dpy, surf->surface_image.image_id);
1903 CHECK_VASTATUS(va_status, "vaDestroyImage");
1905 // Schedule the frame for encoding.
1906 VASurfaceID va_surface = surf->src_surface;
1907 va_status = vaBeginPicture(va_dpy, context_id, va_surface);
1908 CHECK_VASTATUS(va_status, "vaBeginPicture");
1910 if (frame_type == FRAME_IDR) {
1911 // FIXME: If the mux wants global headers, we should not put the
1912 // SPS/PPS before each IDR frame, but rather put it into the
1913 // codec extradata (formatted differently?).
1915 render_picture(frame_type, display_frame_num, gop_start_display_frame_num);
1916 if (h264_packedheader) {
1917 render_packedsequence();
1918 render_packedpicture();
1921 //render_sequence();
1922 render_picture(frame_type, display_frame_num, gop_start_display_frame_num);
1924 render_slice(encoding_frame_num, display_frame_num, gop_start_display_frame_num, frame_type);
1926 va_status = vaEndPicture(va_dpy, context_id);
1927 CHECK_VASTATUS(va_status, "vaEndPicture");
1929 // so now the data is done encoding (well, async job kicked off)...
1930 // we send that to the storage thread
1932 tmp.display_order = display_frame_num;
1933 tmp.frame_type = frame_type;
1936 tmp.duration = duration;
1937 tmp.received_ts = received_ts;
1938 storage_task_enqueue(move(tmp));
1940 update_ReferenceFrames(frame_type);
1944 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)
1945 : impl(new QuickSyncEncoderImpl(filename, resource_pool, surface, va_display, width, height, oformat, x264_encoder, disk_space_estimator)) {}
1947 // Must be defined here because unique_ptr<> destructor needs to know the impl.
1948 QuickSyncEncoder::~QuickSyncEncoder() {}
1950 void QuickSyncEncoder::add_audio(int64_t pts, vector<float> audio)
1952 impl->add_audio(pts, audio);
1955 bool QuickSyncEncoder::begin_frame(GLuint *y_tex, GLuint *cbcr_tex)
1957 return impl->begin_frame(y_tex, cbcr_tex);
1960 RefCountedGLsync QuickSyncEncoder::end_frame(int64_t pts, int64_t duration, const vector<RefCountedFrame> &input_frames)
1962 return impl->end_frame(pts, duration, input_frames);
1965 void QuickSyncEncoder::shutdown()
1970 void QuickSyncEncoder::set_stream_mux(Mux *mux)
1972 impl->set_stream_mux(mux);
1975 int64_t QuickSyncEncoder::global_delay() const {
1976 return impl->global_delay();