1 #include "quicksync_encoder.h"
3 #include <movit/image_format.h>
4 #include <movit/resource_pool.h> // Must be above the Xlib includes.
5 #include <movit/util.h>
7 #include <EGL/eglplatform.h>
10 #include <epoxy/egl.h>
18 #include <va/va_drm.h>
19 #include <va/va_drmcommon.h>
20 #include <va/va_enc_h264.h>
21 #include <va/va_x11.h>
24 #include <condition_variable>
39 #include <libavcodec/avcodec.h>
40 #include <libavformat/avio.h>
41 #include <libavutil/error.h>
42 #include <libdrm/drm_fourcc.h>
46 #include "audio_encoder.h"
49 #include "disk_space_estimator.h"
50 #include "ffmpeg_raii.h"
53 #include "print_latency.h"
54 #include "quicksync_encoder_impl.h"
55 #include "ref_counted_frame.h"
57 #include "x264_encoder.h"
59 using namespace movit;
61 using namespace std::chrono;
62 using namespace std::placeholders;
69 // These need to survive several QuickSyncEncoderImpl instances,
70 // so they are outside.
71 once_flag quick_sync_metrics_inited;
72 LatencyHistogram mixer_latency_histogram, qs_latency_histogram;
73 MuxMetrics current_file_mux_metrics, total_mux_metrics;
74 std::atomic<double> metric_current_file_start_time_seconds{0.0 / 0.0};
75 std::atomic<int64_t> metric_quick_sync_stalled_frames{0};
79 #define CHECK_VASTATUS(va_status, func) \
80 if (va_status != VA_STATUS_SUCCESS) { \
81 fprintf(stderr, "%s:%d (%s) failed with %d\n", __func__, __LINE__, func, va_status); \
85 #define BUFFER_OFFSET(i) ((char *)NULL + (i))
87 //#include "loadsurface.h"
89 #define NAL_REF_IDC_NONE 0
90 #define NAL_REF_IDC_LOW 1
91 #define NAL_REF_IDC_MEDIUM 2
92 #define NAL_REF_IDC_HIGH 3
100 #define SLICE_TYPE_P 0
101 #define SLICE_TYPE_B 1
102 #define SLICE_TYPE_I 2
103 #define IS_P_SLICE(type) (SLICE_TYPE_P == (type))
104 #define IS_B_SLICE(type) (SLICE_TYPE_B == (type))
105 #define IS_I_SLICE(type) (SLICE_TYPE_I == (type))
108 #define ENTROPY_MODE_CAVLC 0
109 #define ENTROPY_MODE_CABAC 1
111 #define PROFILE_IDC_BASELINE 66
112 #define PROFILE_IDC_MAIN 77
113 #define PROFILE_IDC_HIGH 100
115 #define BITSTREAM_ALLOCATE_STEPPING 4096
117 static constexpr unsigned int MaxFrameNum = (2<<16);
118 static constexpr unsigned int MaxPicOrderCntLsb = (2<<8);
119 static constexpr unsigned int Log2MaxFrameNum = 16;
120 static constexpr unsigned int Log2MaxPicOrderCntLsb = 8;
124 // Supposedly vaRenderPicture() is supposed to destroy the buffer implicitly,
125 // but if we don't delete it here, we get leaks. The GStreamer implementation
127 static void render_picture_and_delete(VADisplay dpy, VAContextID context, VABufferID *buffers, int num_buffers)
129 VAStatus va_status = vaRenderPicture(dpy, context, buffers, num_buffers);
130 CHECK_VASTATUS(va_status, "vaRenderPicture");
132 for (int i = 0; i < num_buffers; ++i) {
133 va_status = vaDestroyBuffer(dpy, buffers[i]);
134 CHECK_VASTATUS(va_status, "vaDestroyBuffer");
139 va_swap32(unsigned int val)
141 unsigned char *pval = (unsigned char *)&val;
143 return ((pval[0] << 24) |
150 bitstream_start(bitstream *bs)
152 bs->max_size_in_dword = BITSTREAM_ALLOCATE_STEPPING;
153 bs->buffer = (unsigned int *)calloc(bs->max_size_in_dword * sizeof(int), 1);
158 bitstream_end(bitstream *bs)
160 int pos = (bs->bit_offset >> 5);
161 int bit_offset = (bs->bit_offset & 0x1f);
162 int bit_left = 32 - bit_offset;
165 bs->buffer[pos] = va_swap32((bs->buffer[pos] << bit_left));
170 bitstream_put_ui(bitstream *bs, unsigned int val, int size_in_bits)
172 int pos = (bs->bit_offset >> 5);
173 int bit_offset = (bs->bit_offset & 0x1f);
174 int bit_left = 32 - bit_offset;
179 bs->bit_offset += size_in_bits;
181 if (bit_left > size_in_bits) {
182 bs->buffer[pos] = (bs->buffer[pos] << size_in_bits | val);
184 size_in_bits -= bit_left;
185 if (bit_left >= 32) {
186 bs->buffer[pos] = (val >> size_in_bits);
188 bs->buffer[pos] = (bs->buffer[pos] << bit_left) | (val >> size_in_bits);
190 bs->buffer[pos] = va_swap32(bs->buffer[pos]);
192 if (pos + 1 == bs->max_size_in_dword) {
193 bs->max_size_in_dword += BITSTREAM_ALLOCATE_STEPPING;
194 bs->buffer = (unsigned int *)realloc(bs->buffer, bs->max_size_in_dword * sizeof(unsigned int));
197 bs->buffer[pos + 1] = val;
202 bitstream_put_ue(bitstream *bs, unsigned int val)
204 int size_in_bits = 0;
212 bitstream_put_ui(bs, 0, size_in_bits - 1); // leading zero
213 bitstream_put_ui(bs, val, size_in_bits);
217 bitstream_put_se(bitstream *bs, int val)
219 unsigned int new_val;
224 new_val = 2 * val - 1;
226 bitstream_put_ue(bs, new_val);
230 bitstream_byte_aligning(bitstream *bs, int bit)
232 int bit_offset = (bs->bit_offset & 0x7);
233 int bit_left = 8 - bit_offset;
239 assert(bit == 0 || bit == 1);
242 new_val = (1 << bit_left) - 1;
246 bitstream_put_ui(bs, new_val, bit_left);
250 rbsp_trailing_bits(bitstream *bs)
252 bitstream_put_ui(bs, 1, 1);
253 bitstream_byte_aligning(bs, 0);
256 static void nal_start_code_prefix(bitstream *bs)
258 bitstream_put_ui(bs, 0x00000001, 32);
261 static void nal_header(bitstream *bs, int nal_ref_idc, int nal_unit_type)
263 bitstream_put_ui(bs, 0, 1); /* forbidden_zero_bit: 0 */
264 bitstream_put_ui(bs, nal_ref_idc, 2);
265 bitstream_put_ui(bs, nal_unit_type, 5);
268 void QuickSyncEncoderImpl::sps_rbsp(YCbCrLumaCoefficients ycbcr_coefficients, bitstream *bs)
270 int profile_idc = PROFILE_IDC_BASELINE;
272 if (h264_profile == VAProfileH264High)
273 profile_idc = PROFILE_IDC_HIGH;
274 else if (h264_profile == VAProfileH264Main)
275 profile_idc = PROFILE_IDC_MAIN;
277 bitstream_put_ui(bs, profile_idc, 8); /* profile_idc */
278 bitstream_put_ui(bs, !!(constraint_set_flag & 1), 1); /* constraint_set0_flag */
279 bitstream_put_ui(bs, !!(constraint_set_flag & 2), 1); /* constraint_set1_flag */
280 bitstream_put_ui(bs, !!(constraint_set_flag & 4), 1); /* constraint_set2_flag */
281 bitstream_put_ui(bs, !!(constraint_set_flag & 8), 1); /* constraint_set3_flag */
282 bitstream_put_ui(bs, 0, 4); /* reserved_zero_4bits */
283 bitstream_put_ui(bs, seq_param.level_idc, 8); /* level_idc */
284 bitstream_put_ue(bs, seq_param.seq_parameter_set_id); /* seq_parameter_set_id */
286 if ( profile_idc == PROFILE_IDC_HIGH) {
287 bitstream_put_ue(bs, 1); /* chroma_format_idc = 1, 4:2:0 */
288 bitstream_put_ue(bs, 0); /* bit_depth_luma_minus8 */
289 bitstream_put_ue(bs, 0); /* bit_depth_chroma_minus8 */
290 bitstream_put_ui(bs, 0, 1); /* qpprime_y_zero_transform_bypass_flag */
291 bitstream_put_ui(bs, 0, 1); /* seq_scaling_matrix_present_flag */
294 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_frame_num_minus4); /* log2_max_frame_num_minus4 */
295 bitstream_put_ue(bs, seq_param.seq_fields.bits.pic_order_cnt_type); /* pic_order_cnt_type */
297 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0)
298 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4); /* log2_max_pic_order_cnt_lsb_minus4 */
303 bitstream_put_ue(bs, seq_param.max_num_ref_frames); /* num_ref_frames */
304 bitstream_put_ui(bs, 0, 1); /* gaps_in_frame_num_value_allowed_flag */
306 bitstream_put_ue(bs, seq_param.picture_width_in_mbs - 1); /* pic_width_in_mbs_minus1 */
307 bitstream_put_ue(bs, seq_param.picture_height_in_mbs - 1); /* pic_height_in_map_units_minus1 */
308 bitstream_put_ui(bs, seq_param.seq_fields.bits.frame_mbs_only_flag, 1); /* frame_mbs_only_flag */
310 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
314 bitstream_put_ui(bs, seq_param.seq_fields.bits.direct_8x8_inference_flag, 1); /* direct_8x8_inference_flag */
315 bitstream_put_ui(bs, seq_param.frame_cropping_flag, 1); /* frame_cropping_flag */
317 if (seq_param.frame_cropping_flag) {
318 bitstream_put_ue(bs, seq_param.frame_crop_left_offset); /* frame_crop_left_offset */
319 bitstream_put_ue(bs, seq_param.frame_crop_right_offset); /* frame_crop_right_offset */
320 bitstream_put_ue(bs, seq_param.frame_crop_top_offset); /* frame_crop_top_offset */
321 bitstream_put_ue(bs, seq_param.frame_crop_bottom_offset); /* frame_crop_bottom_offset */
324 //if ( frame_bit_rate < 0 ) { //TODO EW: the vui header isn't correct
326 bitstream_put_ui(bs, 0, 1); /* vui_parameters_present_flag */
328 // See H.264 annex E for the definition of this header.
329 bitstream_put_ui(bs, 1, 1); /* vui_parameters_present_flag */
330 bitstream_put_ui(bs, 0, 1); /* aspect_ratio_info_present_flag */
331 bitstream_put_ui(bs, 0, 1); /* overscan_info_present_flag */
332 bitstream_put_ui(bs, 1, 1); /* video_signal_type_present_flag */
334 bitstream_put_ui(bs, 5, 3); /* video_format (5 = Unspecified) */
335 bitstream_put_ui(bs, 0, 1); /* video_full_range_flag */
336 bitstream_put_ui(bs, 1, 1); /* colour_description_present_flag */
338 bitstream_put_ui(bs, 1, 8); /* colour_primaries (1 = BT.709) */
339 bitstream_put_ui(bs, 13, 8); /* transfer_characteristics (13 = sRGB) */
340 if (ycbcr_coefficients == YCBCR_REC_709) {
341 bitstream_put_ui(bs, 1, 8); /* matrix_coefficients (1 = BT.709) */
343 assert(ycbcr_coefficients == YCBCR_REC_601);
344 bitstream_put_ui(bs, 6, 8); /* matrix_coefficients (6 = BT.601/SMPTE 170M) */
348 bitstream_put_ui(bs, 0, 1); /* chroma_loc_info_present_flag */
349 bitstream_put_ui(bs, 1, 1); /* timing_info_present_flag */
351 bitstream_put_ui(bs, 1, 32); // FPS
352 bitstream_put_ui(bs, TIMEBASE * 2, 32); // FPS
353 bitstream_put_ui(bs, 1, 1);
355 bitstream_put_ui(bs, 1, 1); /* nal_hrd_parameters_present_flag */
358 bitstream_put_ue(bs, 0); /* cpb_cnt_minus1 */
359 bitstream_put_ui(bs, 4, 4); /* bit_rate_scale */
360 bitstream_put_ui(bs, 6, 4); /* cpb_size_scale */
362 bitstream_put_ue(bs, frame_bitrate - 1); /* bit_rate_value_minus1[0] */
363 bitstream_put_ue(bs, frame_bitrate*8 - 1); /* cpb_size_value_minus1[0] */
364 bitstream_put_ui(bs, 1, 1); /* cbr_flag[0] */
366 bitstream_put_ui(bs, 23, 5); /* initial_cpb_removal_delay_length_minus1 */
367 bitstream_put_ui(bs, 23, 5); /* cpb_removal_delay_length_minus1 */
368 bitstream_put_ui(bs, 23, 5); /* dpb_output_delay_length_minus1 */
369 bitstream_put_ui(bs, 23, 5); /* time_offset_length */
371 bitstream_put_ui(bs, 0, 1); /* vcl_hrd_parameters_present_flag */
372 bitstream_put_ui(bs, 0, 1); /* low_delay_hrd_flag */
374 bitstream_put_ui(bs, 0, 1); /* pic_struct_present_flag */
375 bitstream_put_ui(bs, 0, 1); /* bitstream_restriction_flag */
378 rbsp_trailing_bits(bs); /* rbsp_trailing_bits */
382 void QuickSyncEncoderImpl::pps_rbsp(bitstream *bs)
384 bitstream_put_ue(bs, pic_param.pic_parameter_set_id); /* pic_parameter_set_id */
385 bitstream_put_ue(bs, pic_param.seq_parameter_set_id); /* seq_parameter_set_id */
387 bitstream_put_ui(bs, pic_param.pic_fields.bits.entropy_coding_mode_flag, 1); /* entropy_coding_mode_flag */
389 bitstream_put_ui(bs, 0, 1); /* pic_order_present_flag: 0 */
391 bitstream_put_ue(bs, 0); /* num_slice_groups_minus1 */
393 bitstream_put_ue(bs, pic_param.num_ref_idx_l0_active_minus1); /* num_ref_idx_l0_active_minus1 */
394 bitstream_put_ue(bs, pic_param.num_ref_idx_l1_active_minus1); /* num_ref_idx_l1_active_minus1 1 */
396 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_pred_flag, 1); /* weighted_pred_flag: 0 */
397 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_bipred_idc, 2); /* weighted_bipred_idc: 0 */
399 bitstream_put_se(bs, pic_param.pic_init_qp - 26); /* pic_init_qp_minus26 */
400 bitstream_put_se(bs, 0); /* pic_init_qs_minus26 */
401 bitstream_put_se(bs, 0); /* chroma_qp_index_offset */
403 bitstream_put_ui(bs, pic_param.pic_fields.bits.deblocking_filter_control_present_flag, 1); /* deblocking_filter_control_present_flag */
404 bitstream_put_ui(bs, 0, 1); /* constrained_intra_pred_flag */
405 bitstream_put_ui(bs, 0, 1); /* redundant_pic_cnt_present_flag */
408 bitstream_put_ui(bs, pic_param.pic_fields.bits.transform_8x8_mode_flag, 1); /*transform_8x8_mode_flag */
409 bitstream_put_ui(bs, 0, 1); /* pic_scaling_matrix_present_flag */
410 bitstream_put_se(bs, pic_param.second_chroma_qp_index_offset ); /*second_chroma_qp_index_offset */
412 rbsp_trailing_bits(bs);
415 void QuickSyncEncoderImpl::slice_header(bitstream *bs)
417 int first_mb_in_slice = slice_param.macroblock_address;
419 bitstream_put_ue(bs, first_mb_in_slice); /* first_mb_in_slice: 0 */
420 bitstream_put_ue(bs, slice_param.slice_type); /* slice_type */
421 bitstream_put_ue(bs, slice_param.pic_parameter_set_id); /* pic_parameter_set_id: 0 */
422 bitstream_put_ui(bs, pic_param.frame_num, seq_param.seq_fields.bits.log2_max_frame_num_minus4 + 4); /* frame_num */
424 /* frame_mbs_only_flag == 1 */
425 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
430 if (pic_param.pic_fields.bits.idr_pic_flag)
431 bitstream_put_ue(bs, slice_param.idr_pic_id); /* idr_pic_id: 0 */
433 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0) {
434 bitstream_put_ui(bs, pic_param.CurrPic.TopFieldOrderCnt, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 + 4);
435 /* pic_order_present_flag == 0 */
441 /* redundant_pic_cnt_present_flag == 0 */
443 if (IS_P_SLICE(slice_param.slice_type)) {
444 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
446 if (slice_param.num_ref_idx_active_override_flag)
447 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
449 /* ref_pic_list_reordering */
450 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
451 } else if (IS_B_SLICE(slice_param.slice_type)) {
452 bitstream_put_ui(bs, slice_param.direct_spatial_mv_pred_flag, 1); /* direct_spatial_mv_pred: 1 */
454 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
456 if (slice_param.num_ref_idx_active_override_flag) {
457 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
458 bitstream_put_ue(bs, slice_param.num_ref_idx_l1_active_minus1);
461 /* ref_pic_list_reordering */
462 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
463 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l1: 0 */
466 if ((pic_param.pic_fields.bits.weighted_pred_flag &&
467 IS_P_SLICE(slice_param.slice_type)) ||
468 ((pic_param.pic_fields.bits.weighted_bipred_idc == 1) &&
469 IS_B_SLICE(slice_param.slice_type))) {
470 /* FIXME: fill weight/offset table */
474 /* dec_ref_pic_marking */
475 if (pic_param.pic_fields.bits.reference_pic_flag) { /* nal_ref_idc != 0 */
476 unsigned char no_output_of_prior_pics_flag = 0;
477 unsigned char long_term_reference_flag = 0;
478 unsigned char adaptive_ref_pic_marking_mode_flag = 0;
480 if (pic_param.pic_fields.bits.idr_pic_flag) {
481 bitstream_put_ui(bs, no_output_of_prior_pics_flag, 1); /* no_output_of_prior_pics_flag: 0 */
482 bitstream_put_ui(bs, long_term_reference_flag, 1); /* long_term_reference_flag: 0 */
484 bitstream_put_ui(bs, adaptive_ref_pic_marking_mode_flag, 1); /* adaptive_ref_pic_marking_mode_flag: 0 */
488 if (pic_param.pic_fields.bits.entropy_coding_mode_flag &&
489 !IS_I_SLICE(slice_param.slice_type))
490 bitstream_put_ue(bs, slice_param.cabac_init_idc); /* cabac_init_idc: 0 */
492 bitstream_put_se(bs, slice_param.slice_qp_delta); /* slice_qp_delta: 0 */
494 /* ignore for SP/SI */
496 if (pic_param.pic_fields.bits.deblocking_filter_control_present_flag) {
497 bitstream_put_ue(bs, slice_param.disable_deblocking_filter_idc); /* disable_deblocking_filter_idc: 0 */
499 if (slice_param.disable_deblocking_filter_idc != 1) {
500 bitstream_put_se(bs, slice_param.slice_alpha_c0_offset_div2); /* slice_alpha_c0_offset_div2: 2 */
501 bitstream_put_se(bs, slice_param.slice_beta_offset_div2); /* slice_beta_offset_div2: 2 */
505 if (pic_param.pic_fields.bits.entropy_coding_mode_flag) {
506 bitstream_byte_aligning(bs, 1);
510 int QuickSyncEncoderImpl::build_packed_pic_buffer(unsigned char **header_buffer)
514 bitstream_start(&bs);
515 nal_start_code_prefix(&bs);
516 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_PPS);
520 *header_buffer = (unsigned char *)bs.buffer;
521 return bs.bit_offset;
525 QuickSyncEncoderImpl::build_packed_seq_buffer(YCbCrLumaCoefficients ycbcr_coefficients, unsigned char **header_buffer)
529 bitstream_start(&bs);
530 nal_start_code_prefix(&bs);
531 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_SPS);
532 sps_rbsp(ycbcr_coefficients, &bs);
535 *header_buffer = (unsigned char *)bs.buffer;
536 return bs.bit_offset;
539 int QuickSyncEncoderImpl::build_packed_slice_buffer(unsigned char **header_buffer)
542 int is_idr = !!pic_param.pic_fields.bits.idr_pic_flag;
543 int is_ref = !!pic_param.pic_fields.bits.reference_pic_flag;
545 bitstream_start(&bs);
546 nal_start_code_prefix(&bs);
548 if (IS_I_SLICE(slice_param.slice_type)) {
549 nal_header(&bs, NAL_REF_IDC_HIGH, is_idr ? NAL_IDR : NAL_NON_IDR);
550 } else if (IS_P_SLICE(slice_param.slice_type)) {
551 nal_header(&bs, NAL_REF_IDC_MEDIUM, NAL_NON_IDR);
553 assert(IS_B_SLICE(slice_param.slice_type));
554 nal_header(&bs, is_ref ? NAL_REF_IDC_LOW : NAL_REF_IDC_NONE, NAL_NON_IDR);
560 *header_buffer = (unsigned char *)bs.buffer;
561 return bs.bit_offset;
566 Assume frame sequence is: Frame#0, #1, #2, ..., #M, ..., #X, ... (encoding order)
567 1) period between Frame #X and Frame #N = #X - #N
568 2) 0 means infinite for intra_period/intra_idr_period, and 0 is invalid for ip_period
569 3) intra_idr_period % intra_period (intra_period > 0) and intra_period % ip_period must be 0
570 4) intra_period and intra_idr_period take precedence over ip_period
571 5) if ip_period > 1, intra_period and intra_idr_period are not the strict periods
572 of I/IDR frames, see bellow examples
573 -------------------------------------------------------------------
574 intra_period intra_idr_period ip_period frame sequence (intra_period/intra_idr_period/ip_period)
575 0 ignored 1 IDRPPPPPPP ... (No IDR/I any more)
576 0 ignored >=2 IDR(PBB)(PBB)... (No IDR/I any more)
577 1 0 ignored IDRIIIIIII... (No IDR any more)
578 1 1 ignored IDR IDR IDR IDR...
579 1 >=2 ignored IDRII IDRII IDR... (1/3/ignore)
580 >=2 0 1 IDRPPP IPPP I... (3/0/1)
581 >=2 0 >=2 IDR(PBB)(PBB)(IBB) (6/0/3)
582 (PBB)(IBB)(PBB)(IBB)...
583 >=2 >=2 1 IDRPPPPP IPPPPP IPPPPP (6/18/1)
584 IDRPPPPP IPPPPP IPPPPP...
585 >=2 >=2 >=2 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)} (6/18/3)
586 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)}...
587 {IDR(PBB)(PBB)(IBB)(PBB)} (6/12/3)
588 {IDR(PBB)(PBB)(IBB)(PBB)}...
589 {IDR(PBB)(PBB)} (6/6/3)
593 // General pts/dts strategy:
595 // Getting pts and dts right with variable frame rate (VFR) and B-frames can be a
596 // bit tricky. We assume first of all that the frame rate never goes _above_
597 // MAX_FPS, which gives us a frame period N. The decoder can always decode
598 // in at least this speed, as long at dts <= pts (the frame is not attempted
599 // presented before it is decoded). Furthermore, we never have longer chains of
600 // B-frames than a fixed constant C. (In a B-frame chain, we say that the base
601 // I/P-frame has order O=0, the B-frame depending on it directly has order O=1,
602 // etc. The last frame in the chain, which no B-frames depend on, is the “tip”
603 // frame, with an order O <= C.)
605 // Many strategies are possible, but we establish these rules:
607 // - Tip frames have dts = pts - (C-O)*N.
608 // - Non-tip frames have dts = dts_last + N.
610 // An example, with C=2 and N=10 and the data flow showed with arrows:
613 // pts: 30 40 50 60 70 80
615 // dts: 10 30 20 60 50←40
620 // To show that this works fine also with irregular spacings, let's say that
621 // the third frame is delayed a bit (something earlier was dropped). Now the
622 // situation looks like this:
625 // pts: 30 40 80 90 100 110
627 // dts: 10 30 20 90 50←40
632 // The resetting on every tip frame makes sure dts never ends up lagging a lot
633 // behind pts, and the subtraction of (C-O)*N makes sure pts <= dts.
635 // In the output of this function, if <dts_lag> is >= 0, it means to reset the
636 // dts from the current pts minus <dts_lag>, while if it's -1, the frame is not
637 // a tip frame and should be given a dts based on the previous one.
642 void encoding2display_order(
643 int encoding_order, int intra_period,
644 int intra_idr_period, int ip_period,
645 int *displaying_order,
646 int *frame_type, int *pts_lag)
648 int encoding_order_gop = 0;
652 if (intra_period == 1) { /* all are I/IDR frames */
653 *displaying_order = encoding_order;
654 if (intra_idr_period == 0)
655 *frame_type = (encoding_order == 0)?FRAME_IDR:FRAME_I;
657 *frame_type = (encoding_order % intra_idr_period == 0)?FRAME_IDR:FRAME_I;
661 if (intra_period == 0)
662 intra_idr_period = 0;
664 if (ip_period == 1) {
665 // No B-frames, sequence is like IDR PPPPP IPPPPP.
666 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % intra_idr_period);
667 *displaying_order = encoding_order;
669 if (encoding_order_gop == 0) { /* the first frame */
670 *frame_type = FRAME_IDR;
671 } else if (intra_period != 0 && /* have I frames */
672 encoding_order_gop >= 2 &&
673 (encoding_order_gop % intra_period == 0)) {
674 *frame_type = FRAME_I;
676 *frame_type = FRAME_P;
681 // We have B-frames. Sequence is like IDR (PBB)(PBB)(IBB)(PBB).
682 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % (intra_idr_period + 1));
683 *pts_lag = -1; // Most frames are not tip frames.
685 if (encoding_order_gop == 0) { /* the first frame */
686 *frame_type = FRAME_IDR;
687 *displaying_order = encoding_order;
688 // IDR frames are a special case; I honestly can't find the logic behind
689 // why this is the right thing, but it seems to line up nicely in practice :-)
690 *pts_lag = TIMEBASE / MAX_FPS;
691 } else if (((encoding_order_gop - 1) % ip_period) != 0) { /* B frames */
692 *frame_type = FRAME_B;
693 *displaying_order = encoding_order - 1;
694 if ((encoding_order_gop % ip_period) == 0) {
695 *pts_lag = 0; // Last B-frame.
697 } else if (intra_period != 0 && /* have I frames */
698 encoding_order_gop >= 2 &&
699 ((encoding_order_gop - 1) / ip_period % (intra_period / ip_period)) == 0) {
700 *frame_type = FRAME_I;
701 *displaying_order = encoding_order + ip_period - 1;
703 *frame_type = FRAME_P;
704 *displaying_order = encoding_order + ip_period - 1;
709 void QuickSyncEncoderImpl::enable_zerocopy_if_possible()
711 if (global_flags.x264_video_to_disk) {
712 // Quick Sync is entirely disabled.
713 use_zerocopy = false;
714 } else if (global_flags.uncompressed_video_to_http) {
715 fprintf(stderr, "Disabling zerocopy H.264 encoding due to --http-uncompressed-video.\n");
716 use_zerocopy = false;
717 } else if (global_flags.x264_video_to_http) {
718 fprintf(stderr, "Disabling zerocopy H.264 encoding due to --http-x264-video.\n");
719 use_zerocopy = false;
723 global_flags.use_zerocopy = use_zerocopy;
726 VADisplay QuickSyncEncoderImpl::va_open_display(const string &va_display)
728 if (va_display.empty()) {
729 x11_display = XOpenDisplay(NULL);
731 fprintf(stderr, "error: can't connect to X server!\n");
734 return vaGetDisplay(x11_display);
735 } else if (va_display[0] != '/') {
736 x11_display = XOpenDisplay(va_display.c_str());
738 fprintf(stderr, "error: can't connect to X server!\n");
741 return vaGetDisplay(x11_display);
743 drm_fd = open(va_display.c_str(), O_RDWR);
745 perror(va_display.c_str());
748 use_zerocopy = false;
749 return vaGetDisplayDRM(drm_fd);
753 void QuickSyncEncoderImpl::va_close_display(VADisplay va_dpy)
756 XCloseDisplay(x11_display);
757 x11_display = nullptr;
764 int QuickSyncEncoderImpl::init_va(const string &va_display)
766 VAProfile profile_list[]={VAProfileH264High, VAProfileH264Main, VAProfileH264Baseline, VAProfileH264ConstrainedBaseline};
767 VAEntrypoint *entrypoints;
768 int num_entrypoints, slice_entrypoint;
769 int support_encode = 0;
770 int major_ver, minor_ver;
774 va_dpy = va_open_display(va_display);
775 va_status = vaInitialize(va_dpy, &major_ver, &minor_ver);
776 CHECK_VASTATUS(va_status, "vaInitialize");
778 num_entrypoints = vaMaxNumEntrypoints(va_dpy);
779 entrypoints = (VAEntrypoint *)malloc(num_entrypoints * sizeof(*entrypoints));
781 fprintf(stderr, "error: failed to initialize VA entrypoints array\n");
785 /* use the highest profile */
786 for (i = 0; i < sizeof(profile_list)/sizeof(profile_list[0]); i++) {
787 if ((h264_profile != ~0) && h264_profile != profile_list[i])
790 h264_profile = profile_list[i];
791 vaQueryConfigEntrypoints(va_dpy, h264_profile, entrypoints, &num_entrypoints);
792 for (slice_entrypoint = 0; slice_entrypoint < num_entrypoints; slice_entrypoint++) {
793 if (entrypoints[slice_entrypoint] == VAEntrypointEncSlice) {
798 if (support_encode == 1)
802 if (support_encode == 0) {
803 printf("Can't find VAEntrypointEncSlice for H264 profiles. If you are using a non-Intel GPU\n");
804 printf("but have one in your system, try launching Nageru with --va-display /dev/dri/renderD128\n");
805 printf("to use VA-API against DRM instead of X11.\n");
808 switch (h264_profile) {
809 case VAProfileH264Baseline:
811 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
812 h264_entropy_mode = 0;
814 case VAProfileH264ConstrainedBaseline:
815 constraint_set_flag |= (1 << 0 | 1 << 1); /* Annex A.2.2 */
819 case VAProfileH264Main:
820 constraint_set_flag |= (1 << 1); /* Annex A.2.2 */
823 case VAProfileH264High:
824 constraint_set_flag |= (1 << 3); /* Annex A.2.4 */
827 h264_profile = VAProfileH264Baseline;
829 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
834 VAConfigAttrib attrib[VAConfigAttribTypeMax];
836 /* find out the format for the render target, and rate control mode */
837 for (i = 0; i < VAConfigAttribTypeMax; i++)
838 attrib[i].type = (VAConfigAttribType)i;
840 va_status = vaGetConfigAttributes(va_dpy, h264_profile, VAEntrypointEncSlice,
841 &attrib[0], VAConfigAttribTypeMax);
842 CHECK_VASTATUS(va_status, "vaGetConfigAttributes");
843 /* check the interested configattrib */
844 if ((attrib[VAConfigAttribRTFormat].value & VA_RT_FORMAT_YUV420) == 0) {
845 printf("Not find desired YUV420 RT format\n");
848 config_attrib[config_attrib_num].type = VAConfigAttribRTFormat;
849 config_attrib[config_attrib_num].value = VA_RT_FORMAT_YUV420;
853 if (attrib[VAConfigAttribRateControl].value != VA_ATTRIB_NOT_SUPPORTED) {
854 if (!(attrib[VAConfigAttribRateControl].value & VA_RC_CQP)) {
855 fprintf(stderr, "ERROR: VA-API encoder does not support CQP mode.\n");
859 config_attrib[config_attrib_num].type = VAConfigAttribRateControl;
860 config_attrib[config_attrib_num].value = VA_RC_CQP;
865 if (attrib[VAConfigAttribEncPackedHeaders].value != VA_ATTRIB_NOT_SUPPORTED) {
866 int tmp = attrib[VAConfigAttribEncPackedHeaders].value;
868 h264_packedheader = 1;
869 config_attrib[config_attrib_num].type = VAConfigAttribEncPackedHeaders;
870 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
872 if (tmp & VA_ENC_PACKED_HEADER_SEQUENCE) {
873 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SEQUENCE;
876 if (tmp & VA_ENC_PACKED_HEADER_PICTURE) {
877 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_PICTURE;
880 if (tmp & VA_ENC_PACKED_HEADER_SLICE) {
881 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SLICE;
884 if (tmp & VA_ENC_PACKED_HEADER_MISC) {
885 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_MISC;
888 enc_packed_header_idx = config_attrib_num;
892 if (attrib[VAConfigAttribEncInterlaced].value != VA_ATTRIB_NOT_SUPPORTED) {
893 config_attrib[config_attrib_num].type = VAConfigAttribEncInterlaced;
894 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
898 if (attrib[VAConfigAttribEncMaxRefFrames].value != VA_ATTRIB_NOT_SUPPORTED) {
899 h264_maxref = attrib[VAConfigAttribEncMaxRefFrames].value;
906 int QuickSyncEncoderImpl::setup_encode()
908 if (!global_flags.x264_video_to_disk) {
910 VASurfaceID *tmp_surfaceid;
912 VASurfaceID src_surface[SURFACE_NUM];
913 VASurfaceID ref_surface[SURFACE_NUM];
915 va_status = vaCreateConfig(va_dpy, h264_profile, VAEntrypointEncSlice,
916 &config_attrib[0], config_attrib_num, &config_id);
917 CHECK_VASTATUS(va_status, "vaCreateConfig");
919 /* create source surfaces */
920 va_status = vaCreateSurfaces(va_dpy,
921 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
922 &src_surface[0], SURFACE_NUM,
924 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
926 /* create reference surfaces */
927 va_status = vaCreateSurfaces(va_dpy,
928 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
929 &ref_surface[0], SURFACE_NUM,
931 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
933 tmp_surfaceid = (VASurfaceID *)calloc(2 * SURFACE_NUM, sizeof(VASurfaceID));
934 memcpy(tmp_surfaceid, src_surface, SURFACE_NUM * sizeof(VASurfaceID));
935 memcpy(tmp_surfaceid + SURFACE_NUM, ref_surface, SURFACE_NUM * sizeof(VASurfaceID));
937 for (int i = 0; i < SURFACE_NUM; i++) {
938 gl_surfaces[i].src_surface = src_surface[i];
939 gl_surfaces[i].ref_surface = ref_surface[i];
942 /* Create a context for this encode pipe */
943 va_status = vaCreateContext(va_dpy, config_id,
944 frame_width_mbaligned, frame_height_mbaligned,
946 tmp_surfaceid, 2 * SURFACE_NUM,
948 CHECK_VASTATUS(va_status, "vaCreateContext");
951 codedbuf_size = (frame_width_mbaligned * frame_height_mbaligned * 400) / (16*16);
953 for (int i = 0; i < SURFACE_NUM; i++) {
954 /* create coded buffer once for all
955 * other VA buffers which won't be used again after vaRenderPicture.
956 * so APP can always vaCreateBuffer for every frame
957 * but coded buffer need to be mapped and accessed after vaRenderPicture/vaEndPicture
958 * so VA won't maintain the coded buffer
960 va_status = vaCreateBuffer(va_dpy, context_id, VAEncCodedBufferType,
961 codedbuf_size, 1, NULL, &gl_surfaces[i].coded_buf);
962 CHECK_VASTATUS(va_status, "vaCreateBuffer");
966 /* create OpenGL objects */
967 for (int i = 0; i < SURFACE_NUM; i++) {
969 gl_surfaces[i].y_tex = resource_pool->create_2d_texture(GL_R8, 1, 1);
970 gl_surfaces[i].cbcr_tex = resource_pool->create_2d_texture(GL_RG8, 1, 1);
972 size_t bytes_per_pixel = (global_flags.x264_bit_depth > 8) ? 2 : 1;
974 // Generate a PBO to read into. It doesn't necessarily fit 1:1 with the VA-API
975 // buffers, due to potentially differing pitch.
976 glGenBuffers(1, &gl_surfaces[i].pbo);
977 glBindBuffer(GL_PIXEL_PACK_BUFFER, gl_surfaces[i].pbo);
978 glBufferStorage(GL_PIXEL_PACK_BUFFER, frame_width * frame_height * 2 * bytes_per_pixel, nullptr, GL_MAP_READ_BIT | GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT);
979 uint8_t *ptr = (uint8_t *)glMapBufferRange(GL_PIXEL_PACK_BUFFER, 0, frame_width * frame_height * 2 * bytes_per_pixel, GL_MAP_READ_BIT | GL_MAP_PERSISTENT_BIT);
980 gl_surfaces[i].y_offset = 0;
981 gl_surfaces[i].cbcr_offset = frame_width * frame_height * bytes_per_pixel;
982 gl_surfaces[i].y_ptr = ptr + gl_surfaces[i].y_offset;
983 gl_surfaces[i].cbcr_ptr = ptr + gl_surfaces[i].cbcr_offset;
984 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
991 // Given a list like 1 9 3 0 2 8 4 and a pivot element 3, will produce
994 template<class T, class C>
995 static void sort_two(T *begin, T *end, const T &pivot, const C &less_than)
997 T *middle = partition(begin, end, [&](const T &elem) { return less_than(elem, pivot); });
998 sort(begin, middle, [&](const T &a, const T &b) { return less_than(b, a); });
999 sort(middle, end, less_than);
1002 void QuickSyncEncoderImpl::update_ReferenceFrames(int current_display_frame, int frame_type)
1004 if (frame_type == FRAME_B)
1007 pic_param.CurrPic.frame_idx = current_ref_frame_num;
1009 CurrentCurrPic.flags = VA_PICTURE_H264_SHORT_TERM_REFERENCE;
1010 unique_lock<mutex> lock(storage_task_queue_mutex);
1012 // Insert the new frame at the start of the reference queue.
1013 reference_frames.push_front(ReferenceFrame{ CurrentCurrPic, current_display_frame });
1015 if (reference_frames.size() > num_ref_frames)
1017 // The back frame frame is no longer in use as a reference.
1018 int display_frame_num = reference_frames.back().display_number;
1019 assert(surface_for_frame.count(display_frame_num));
1020 release_gl_surface(display_frame_num);
1021 reference_frames.pop_back();
1024 // Mark this frame in use as a reference.
1025 assert(surface_for_frame.count(current_display_frame));
1026 ++surface_for_frame[current_display_frame]->refcount;
1028 current_ref_frame_num++;
1029 if (current_ref_frame_num > MaxFrameNum)
1030 current_ref_frame_num = 0;
1034 void QuickSyncEncoderImpl::update_RefPicList_P(VAPictureH264 RefPicList0_P[MAX_NUM_REF2])
1036 const auto descending_by_frame_idx = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1037 return a.frame_idx > b.frame_idx;
1040 for (size_t i = 0; i < reference_frames.size(); ++i) {
1041 RefPicList0_P[i] = reference_frames[i].pic;
1043 sort(&RefPicList0_P[0], &RefPicList0_P[reference_frames.size()], descending_by_frame_idx);
1046 void QuickSyncEncoderImpl::update_RefPicList_B(VAPictureH264 RefPicList0_B[MAX_NUM_REF2], VAPictureH264 RefPicList1_B[MAX_NUM_REF2])
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 for (size_t i = 0; i < reference_frames.size(); ++i) {
1056 RefPicList0_B[i] = reference_frames[i].pic;
1057 RefPicList1_B[i] = reference_frames[i].pic;
1059 sort_two(&RefPicList0_B[0], &RefPicList0_B[reference_frames.size()], CurrentCurrPic, ascending_by_top_field_order_cnt);
1060 sort_two(&RefPicList1_B[0], &RefPicList1_B[reference_frames.size()], CurrentCurrPic, descending_by_top_field_order_cnt);
1064 int QuickSyncEncoderImpl::render_sequence()
1066 VABufferID seq_param_buf, rc_param_buf, render_id[2];
1068 VAEncMiscParameterBuffer *misc_param;
1069 VAEncMiscParameterRateControl *misc_rate_ctrl;
1071 seq_param.level_idc = 41 /*SH_LEVEL_3*/;
1072 seq_param.picture_width_in_mbs = frame_width_mbaligned / 16;
1073 seq_param.picture_height_in_mbs = frame_height_mbaligned / 16;
1074 seq_param.bits_per_second = frame_bitrate;
1076 seq_param.intra_period = intra_period;
1077 seq_param.intra_idr_period = intra_idr_period;
1078 seq_param.ip_period = ip_period;
1080 seq_param.max_num_ref_frames = num_ref_frames;
1081 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1082 seq_param.time_scale = TIMEBASE * 2;
1083 seq_param.num_units_in_tick = 1; /* Tc = num_units_in_tick / scale */
1084 seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 = Log2MaxPicOrderCntLsb - 4;
1085 seq_param.seq_fields.bits.log2_max_frame_num_minus4 = Log2MaxFrameNum - 4;;
1086 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1087 seq_param.seq_fields.bits.chroma_format_idc = 1;
1088 seq_param.seq_fields.bits.direct_8x8_inference_flag = 1;
1090 if (frame_width != frame_width_mbaligned ||
1091 frame_height != frame_height_mbaligned) {
1092 seq_param.frame_cropping_flag = 1;
1093 seq_param.frame_crop_left_offset = 0;
1094 seq_param.frame_crop_right_offset = (frame_width_mbaligned - frame_width)/2;
1095 seq_param.frame_crop_top_offset = 0;
1096 seq_param.frame_crop_bottom_offset = (frame_height_mbaligned - frame_height)/2;
1099 va_status = vaCreateBuffer(va_dpy, context_id,
1100 VAEncSequenceParameterBufferType,
1101 sizeof(seq_param), 1, &seq_param, &seq_param_buf);
1102 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1104 va_status = vaCreateBuffer(va_dpy, context_id,
1105 VAEncMiscParameterBufferType,
1106 sizeof(VAEncMiscParameterBuffer) + sizeof(VAEncMiscParameterRateControl),
1107 1, NULL, &rc_param_buf);
1108 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1110 vaMapBuffer(va_dpy, rc_param_buf, (void **)&misc_param);
1111 misc_param->type = VAEncMiscParameterTypeRateControl;
1112 misc_rate_ctrl = (VAEncMiscParameterRateControl *)misc_param->data;
1113 memset(misc_rate_ctrl, 0, sizeof(*misc_rate_ctrl));
1114 misc_rate_ctrl->bits_per_second = frame_bitrate;
1115 misc_rate_ctrl->target_percentage = 66;
1116 misc_rate_ctrl->window_size = 1000;
1117 misc_rate_ctrl->initial_qp = initial_qp;
1118 misc_rate_ctrl->min_qp = minimal_qp;
1119 misc_rate_ctrl->basic_unit_size = 0;
1120 vaUnmapBuffer(va_dpy, rc_param_buf);
1122 render_id[0] = seq_param_buf;
1123 render_id[1] = rc_param_buf;
1125 render_picture_and_delete(va_dpy, context_id, &render_id[0], 2);
1130 static int calc_poc(int pic_order_cnt_lsb, int frame_type)
1132 static int PicOrderCntMsb_ref = 0, pic_order_cnt_lsb_ref = 0;
1133 int prevPicOrderCntMsb, prevPicOrderCntLsb;
1134 int PicOrderCntMsb, TopFieldOrderCnt;
1136 if (frame_type == FRAME_IDR)
1137 prevPicOrderCntMsb = prevPicOrderCntLsb = 0;
1139 prevPicOrderCntMsb = PicOrderCntMsb_ref;
1140 prevPicOrderCntLsb = pic_order_cnt_lsb_ref;
1143 if ((pic_order_cnt_lsb < prevPicOrderCntLsb) &&
1144 ((prevPicOrderCntLsb - pic_order_cnt_lsb) >= (int)(MaxPicOrderCntLsb / 2)))
1145 PicOrderCntMsb = prevPicOrderCntMsb + MaxPicOrderCntLsb;
1146 else if ((pic_order_cnt_lsb > prevPicOrderCntLsb) &&
1147 ((pic_order_cnt_lsb - prevPicOrderCntLsb) > (int)(MaxPicOrderCntLsb / 2)))
1148 PicOrderCntMsb = prevPicOrderCntMsb - MaxPicOrderCntLsb;
1150 PicOrderCntMsb = prevPicOrderCntMsb;
1152 TopFieldOrderCnt = PicOrderCntMsb + pic_order_cnt_lsb;
1154 if (frame_type != FRAME_B) {
1155 PicOrderCntMsb_ref = PicOrderCntMsb;
1156 pic_order_cnt_lsb_ref = pic_order_cnt_lsb;
1159 return TopFieldOrderCnt;
1162 int QuickSyncEncoderImpl::render_picture(GLSurface *surf, int frame_type, int display_frame_num, int gop_start_display_frame_num)
1164 VABufferID pic_param_buf;
1168 pic_param.CurrPic.picture_id = surf->ref_surface;
1169 pic_param.CurrPic.frame_idx = current_ref_frame_num;
1170 pic_param.CurrPic.flags = 0;
1171 pic_param.CurrPic.TopFieldOrderCnt = calc_poc((display_frame_num - gop_start_display_frame_num) % MaxPicOrderCntLsb, frame_type);
1172 pic_param.CurrPic.BottomFieldOrderCnt = pic_param.CurrPic.TopFieldOrderCnt;
1173 CurrentCurrPic = pic_param.CurrPic;
1175 for (i = 0; i < reference_frames.size(); i++) {
1176 pic_param.ReferenceFrames[i] = reference_frames[i].pic;
1178 for (i = reference_frames.size(); i < MAX_NUM_REF1; i++) {
1179 pic_param.ReferenceFrames[i].picture_id = VA_INVALID_SURFACE;
1180 pic_param.ReferenceFrames[i].flags = VA_PICTURE_H264_INVALID;
1183 pic_param.pic_fields.bits.idr_pic_flag = (frame_type == FRAME_IDR);
1184 pic_param.pic_fields.bits.reference_pic_flag = (frame_type != FRAME_B);
1185 pic_param.pic_fields.bits.entropy_coding_mode_flag = h264_entropy_mode;
1186 pic_param.pic_fields.bits.deblocking_filter_control_present_flag = 1;
1187 pic_param.frame_num = current_ref_frame_num; // FIXME: is this correct?
1188 pic_param.coded_buf = surf->coded_buf;
1189 pic_param.last_picture = false; // FIXME
1190 pic_param.pic_init_qp = initial_qp;
1192 va_status = vaCreateBuffer(va_dpy, context_id, VAEncPictureParameterBufferType,
1193 sizeof(pic_param), 1, &pic_param, &pic_param_buf);
1194 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1196 render_picture_and_delete(va_dpy, context_id, &pic_param_buf, 1);
1201 int QuickSyncEncoderImpl::render_packedsequence(YCbCrLumaCoefficients ycbcr_coefficients)
1203 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1204 VABufferID packedseq_para_bufid, packedseq_data_bufid, render_id[2];
1205 unsigned int length_in_bits;
1206 unsigned char *packedseq_buffer = NULL;
1209 length_in_bits = build_packed_seq_buffer(ycbcr_coefficients, &packedseq_buffer);
1211 packedheader_param_buffer.type = VAEncPackedHeaderSequence;
1213 packedheader_param_buffer.bit_length = length_in_bits; /*length_in_bits*/
1214 packedheader_param_buffer.has_emulation_bytes = 0;
1215 va_status = vaCreateBuffer(va_dpy,
1217 VAEncPackedHeaderParameterBufferType,
1218 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1219 &packedseq_para_bufid);
1220 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1222 va_status = vaCreateBuffer(va_dpy,
1224 VAEncPackedHeaderDataBufferType,
1225 (length_in_bits + 7) / 8, 1, packedseq_buffer,
1226 &packedseq_data_bufid);
1227 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1229 render_id[0] = packedseq_para_bufid;
1230 render_id[1] = packedseq_data_bufid;
1231 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1233 free(packedseq_buffer);
1239 int QuickSyncEncoderImpl::render_packedpicture()
1241 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1242 VABufferID packedpic_para_bufid, packedpic_data_bufid, render_id[2];
1243 unsigned int length_in_bits;
1244 unsigned char *packedpic_buffer = NULL;
1247 length_in_bits = build_packed_pic_buffer(&packedpic_buffer);
1248 packedheader_param_buffer.type = VAEncPackedHeaderPicture;
1249 packedheader_param_buffer.bit_length = length_in_bits;
1250 packedheader_param_buffer.has_emulation_bytes = 0;
1252 va_status = vaCreateBuffer(va_dpy,
1254 VAEncPackedHeaderParameterBufferType,
1255 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1256 &packedpic_para_bufid);
1257 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1259 va_status = vaCreateBuffer(va_dpy,
1261 VAEncPackedHeaderDataBufferType,
1262 (length_in_bits + 7) / 8, 1, packedpic_buffer,
1263 &packedpic_data_bufid);
1264 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1266 render_id[0] = packedpic_para_bufid;
1267 render_id[1] = packedpic_data_bufid;
1268 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1270 free(packedpic_buffer);
1275 void QuickSyncEncoderImpl::render_packedslice()
1277 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1278 VABufferID packedslice_para_bufid, packedslice_data_bufid, render_id[2];
1279 unsigned int length_in_bits;
1280 unsigned char *packedslice_buffer = NULL;
1283 length_in_bits = build_packed_slice_buffer(&packedslice_buffer);
1284 packedheader_param_buffer.type = VAEncPackedHeaderSlice;
1285 packedheader_param_buffer.bit_length = length_in_bits;
1286 packedheader_param_buffer.has_emulation_bytes = 0;
1288 va_status = vaCreateBuffer(va_dpy,
1290 VAEncPackedHeaderParameterBufferType,
1291 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1292 &packedslice_para_bufid);
1293 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1295 va_status = vaCreateBuffer(va_dpy,
1297 VAEncPackedHeaderDataBufferType,
1298 (length_in_bits + 7) / 8, 1, packedslice_buffer,
1299 &packedslice_data_bufid);
1300 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1302 render_id[0] = packedslice_para_bufid;
1303 render_id[1] = packedslice_data_bufid;
1304 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1306 free(packedslice_buffer);
1309 int QuickSyncEncoderImpl::render_slice(int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num, int frame_type)
1311 VABufferID slice_param_buf;
1315 /* one frame, one slice */
1316 slice_param.macroblock_address = 0;
1317 slice_param.num_macroblocks = frame_width_mbaligned * frame_height_mbaligned/(16*16); /* Measured by MB */
1318 slice_param.slice_type = (frame_type == FRAME_IDR)?2:frame_type;
1319 if (frame_type == FRAME_IDR) {
1320 if (encoding_frame_num != 0)
1321 ++slice_param.idr_pic_id;
1322 } else if (frame_type == FRAME_P) {
1323 VAPictureH264 RefPicList0_P[MAX_NUM_REF2];
1324 update_RefPicList_P(RefPicList0_P);
1326 int refpiclist0_max = h264_maxref & 0xffff;
1327 memcpy(slice_param.RefPicList0, RefPicList0_P, refpiclist0_max*sizeof(VAPictureH264));
1329 for (i = refpiclist0_max; i < MAX_NUM_REF2; i++) {
1330 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1331 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1333 } else if (frame_type == FRAME_B) {
1334 VAPictureH264 RefPicList0_B[MAX_NUM_REF2], RefPicList1_B[MAX_NUM_REF2];
1335 update_RefPicList_B(RefPicList0_B, RefPicList1_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(GLSurface *surf, storage_task task)
1376 VACodedBufferSegment *buf_list = NULL;
1381 va_status = vaMapBuffer(va_dpy, surf->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, surf->coded_buf);
1389 static int frameno = 0;
1390 print_latency("Current Quick Sync latency (video inputs → disk mux):",
1391 task.received_ts, (task.frame_type == FRAME_B), &frameno, &qs_latency_histogram);
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()
1428 pthread_setname_np(pthread_self(), "QS_Storage");
1430 storage_task current;
1433 // wait until there's an encoded frame
1434 unique_lock<mutex> lock(storage_task_queue_mutex);
1435 storage_task_queue_changed.wait(lock, [this]{ return storage_thread_should_quit || !storage_task_queue.empty(); });
1436 if (storage_thread_should_quit && storage_task_queue.empty()) return;
1437 current = move(storage_task_queue.front());
1438 storage_task_queue.pop();
1439 surf = surface_for_frame[current.display_order];
1440 assert(surf != nullptr);
1445 size_t display_order = current.display_order;
1446 vector<size_t> ref_display_frame_numbers = move(current.ref_display_frame_numbers);
1448 // waits for data, then saves it to disk.
1449 va_status = vaSyncSurface(va_dpy, surf->src_surface);
1450 CHECK_VASTATUS(va_status, "vaSyncSurface");
1451 save_codeddata(surf, move(current));
1453 // Unlock the frame, and all its references.
1455 unique_lock<mutex> lock(storage_task_queue_mutex);
1456 release_gl_surface(display_order);
1458 for (size_t frame_num : ref_display_frame_numbers) {
1459 release_gl_surface(frame_num);
1465 void QuickSyncEncoderImpl::release_encode()
1467 for (unsigned i = 0; i < SURFACE_NUM; i++) {
1468 vaDestroyBuffer(va_dpy, gl_surfaces[i].coded_buf);
1469 vaDestroySurfaces(va_dpy, &gl_surfaces[i].src_surface, 1);
1470 vaDestroySurfaces(va_dpy, &gl_surfaces[i].ref_surface, 1);
1473 vaDestroyContext(va_dpy, context_id);
1474 vaDestroyConfig(va_dpy, config_id);
1477 void QuickSyncEncoderImpl::release_gl_resources()
1479 assert(is_shutdown);
1480 if (has_released_gl_resources) {
1484 for (unsigned i = 0; i < SURFACE_NUM; i++) {
1486 resource_pool->release_2d_texture(gl_surfaces[i].y_tex);
1487 resource_pool->release_2d_texture(gl_surfaces[i].cbcr_tex);
1489 glBindBuffer(GL_PIXEL_PACK_BUFFER, gl_surfaces[i].pbo);
1490 glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
1491 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1492 glDeleteBuffers(1, &gl_surfaces[i].pbo);
1496 has_released_gl_resources = true;
1499 int QuickSyncEncoderImpl::deinit_va()
1501 vaTerminate(va_dpy);
1503 va_close_display(va_dpy);
1508 QuickSyncEncoderImpl::QuickSyncEncoderImpl(const std::string &filename, ResourcePool *resource_pool, QSurface *surface, const string &va_display, int width, int height, AVOutputFormat *oformat, X264Encoder *x264_encoder, DiskSpaceEstimator *disk_space_estimator)
1509 : 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)
1511 file_audio_encoder.reset(new AudioEncoder(AUDIO_OUTPUT_CODEC_NAME, DEFAULT_AUDIO_OUTPUT_BIT_RATE, oformat));
1512 open_output_file(filename);
1513 file_audio_encoder->add_mux(file_mux.get());
1515 frame_width_mbaligned = (frame_width + 15) & (~15);
1516 frame_height_mbaligned = (frame_height + 15) & (~15);
1520 if (global_flags.x264_video_to_http || global_flags.x264_video_to_disk) {
1521 assert(x264_encoder != nullptr);
1523 assert(x264_encoder == nullptr);
1526 enable_zerocopy_if_possible();
1527 if (!global_flags.x264_video_to_disk) {
1528 init_va(va_display);
1532 if (!global_flags.x264_video_to_disk) {
1533 memset(&seq_param, 0, sizeof(seq_param));
1534 memset(&pic_param, 0, sizeof(pic_param));
1535 memset(&slice_param, 0, sizeof(slice_param));
1538 call_once(quick_sync_metrics_inited, [](){
1539 mixer_latency_histogram.init("mixer");
1540 qs_latency_histogram.init("quick_sync");
1541 current_file_mux_metrics.init({{ "destination", "current_file" }});
1542 total_mux_metrics.init({{ "destination", "files_total" }});
1543 global_metrics.add("current_file_start_time_seconds", &metric_current_file_start_time_seconds, Metrics::TYPE_GAUGE);
1544 global_metrics.add("quick_sync_stalled_frames", &metric_quick_sync_stalled_frames);
1547 storage_thread = thread(&QuickSyncEncoderImpl::storage_task_thread, this);
1549 encode_thread = thread([this]{
1550 QOpenGLContext *context = create_context(this->surface);
1551 eglBindAPI(EGL_OPENGL_API);
1552 if (!make_current(context, this->surface)) {
1553 printf("display=%p surface=%p context=%p curr=%p err=%d\n", eglGetCurrentDisplay(), this->surface, context, eglGetCurrentContext(),
1557 encode_thread_func();
1558 delete_context(context);
1562 QuickSyncEncoderImpl::~QuickSyncEncoderImpl()
1565 release_gl_resources();
1568 QuickSyncEncoderImpl::GLSurface *QuickSyncEncoderImpl::allocate_gl_surface()
1570 for (unsigned i = 0; i < SURFACE_NUM; ++i) {
1571 if (gl_surfaces[i].refcount == 0) {
1572 ++gl_surfaces[i].refcount;
1573 return &gl_surfaces[i];
1579 void QuickSyncEncoderImpl::release_gl_surface(size_t display_frame_num)
1581 assert(surface_for_frame.count(display_frame_num));
1582 QuickSyncEncoderImpl::GLSurface *surf = surface_for_frame[display_frame_num];
1583 if (--surf->refcount == 0) {
1584 assert(surface_for_frame.count(display_frame_num));
1585 surface_for_frame.erase(display_frame_num);
1586 storage_task_queue_changed.notify_all();
1590 bool QuickSyncEncoderImpl::is_zerocopy() const
1592 return use_zerocopy;
1595 bool QuickSyncEncoderImpl::begin_frame(int64_t pts, int64_t duration, YCbCrLumaCoefficients ycbcr_coefficients, const vector<RefCountedFrame> &input_frames, GLuint *y_tex, GLuint *cbcr_tex)
1597 assert(!is_shutdown);
1598 GLSurface *surf = nullptr;
1600 // Wait until this frame slot is done encoding.
1601 unique_lock<mutex> lock(storage_task_queue_mutex);
1602 surf = allocate_gl_surface();
1603 if (surf == nullptr) {
1604 fprintf(stderr, "Warning: No free slots for frame %d, rendering has to wait for H.264 encoder\n",
1605 current_storage_frame);
1606 ++metric_quick_sync_stalled_frames;
1607 storage_task_queue_changed.wait(lock, [this, &surf]{
1608 if (storage_thread_should_quit)
1610 surf = allocate_gl_surface();
1611 return surf != nullptr;
1614 if (storage_thread_should_quit) return false;
1615 assert(surf != nullptr);
1616 surface_for_frame[current_storage_frame] = surf;
1620 *y_tex = surf->y_tex;
1621 *cbcr_tex = surf->cbcr_tex;
1623 surf->y_tex = *y_tex;
1624 surf->cbcr_tex = *cbcr_tex;
1627 if (!global_flags.x264_video_to_disk) {
1628 VAStatus va_status = vaDeriveImage(va_dpy, surf->src_surface, &surf->surface_image);
1629 CHECK_VASTATUS(va_status, "vaDeriveImage");
1632 VABufferInfo buf_info;
1633 buf_info.mem_type = VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME; // or VA_SURFACE_ATTRIB_MEM_TYPE_KERNEL_DRM?
1634 va_status = vaAcquireBufferHandle(va_dpy, surf->surface_image.buf, &buf_info);
1635 CHECK_VASTATUS(va_status, "vaAcquireBufferHandle");
1638 surf->y_egl_image = EGL_NO_IMAGE_KHR;
1639 EGLint y_attribs[] = {
1640 EGL_WIDTH, frame_width,
1641 EGL_HEIGHT, frame_height,
1642 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('R', '8', ' ', ' '),
1643 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
1644 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[0]),
1645 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[0]),
1649 surf->y_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, y_attribs);
1650 assert(surf->y_egl_image != EGL_NO_IMAGE_KHR);
1652 // Associate Y image to a texture.
1653 glBindTexture(GL_TEXTURE_2D, *y_tex);
1654 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->y_egl_image);
1656 // Create CbCr image.
1657 surf->cbcr_egl_image = EGL_NO_IMAGE_KHR;
1658 EGLint cbcr_attribs[] = {
1659 EGL_WIDTH, frame_width / 2,
1660 EGL_HEIGHT, frame_height / 2,
1661 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('G', 'R', '8', '8'),
1662 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
1663 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[1]),
1664 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[1]),
1668 surf->cbcr_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, cbcr_attribs);
1669 assert(surf->cbcr_egl_image != EGL_NO_IMAGE_KHR);
1671 // Associate CbCr image to a texture.
1672 glBindTexture(GL_TEXTURE_2D, *cbcr_tex);
1673 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->cbcr_egl_image);
1677 current_video_frame = PendingFrame{ {}, input_frames, pts, duration, ycbcr_coefficients };
1682 void QuickSyncEncoderImpl::add_audio(int64_t pts, vector<float> audio)
1684 lock_guard<mutex> lock(file_audio_encoder_mutex);
1685 assert(!is_shutdown);
1686 file_audio_encoder->encode_audio(audio, pts + global_delay());
1689 RefCountedGLsync QuickSyncEncoderImpl::end_frame()
1691 assert(!is_shutdown);
1693 if (!use_zerocopy) {
1694 GLenum type = global_flags.x264_bit_depth > 8 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_BYTE;
1697 unique_lock<mutex> lock(storage_task_queue_mutex);
1698 surf = surface_for_frame[current_storage_frame];
1699 assert(surf != nullptr);
1702 glPixelStorei(GL_PACK_ROW_LENGTH, 0);
1705 glBindBuffer(GL_PIXEL_PACK_BUFFER, surf->pbo);
1708 glBindTexture(GL_TEXTURE_2D, surf->y_tex);
1710 glGetTexImage(GL_TEXTURE_2D, 0, GL_RED, type, BUFFER_OFFSET(surf->y_offset));
1713 glBindTexture(GL_TEXTURE_2D, surf->cbcr_tex);
1715 glGetTexImage(GL_TEXTURE_2D, 0, GL_RG, type, BUFFER_OFFSET(surf->cbcr_offset));
1718 // We don't own these; the caller does.
1719 surf->y_tex = surf->cbcr_tex = 0;
1721 glBindTexture(GL_TEXTURE_2D, 0);
1723 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1726 glMemoryBarrier(GL_TEXTURE_UPDATE_BARRIER_BIT | GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT);
1730 RefCountedGLsync fence = RefCountedGLsync(GL_SYNC_GPU_COMMANDS_COMPLETE, /*flags=*/0);
1732 glFlush(); // Make the H.264 thread see the fence as soon as possible.
1736 unique_lock<mutex> lock(frame_queue_mutex);
1737 current_video_frame.fence = fence;
1738 pending_video_frames.push(move(current_video_frame));
1739 ++current_storage_frame;
1741 frame_queue_nonempty.notify_all();
1745 void QuickSyncEncoderImpl::shutdown()
1752 unique_lock<mutex> lock(frame_queue_mutex);
1753 encode_thread_should_quit = true;
1754 frame_queue_nonempty.notify_all();
1756 encode_thread.join();
1758 unique_lock<mutex> lock(storage_task_queue_mutex);
1759 storage_thread_should_quit = true;
1760 frame_queue_nonempty.notify_all();
1761 storage_task_queue_changed.notify_all();
1763 storage_thread.join();
1765 // Encode any leftover audio in the queues, and also any delayed frames.
1767 lock_guard<mutex> lock(file_audio_encoder_mutex);
1768 file_audio_encoder->encode_last_audio();
1771 if (!global_flags.x264_video_to_disk) {
1778 void QuickSyncEncoderImpl::close_file()
1781 metric_current_file_start_time_seconds = 0.0 / 0.0;
1784 void QuickSyncEncoderImpl::open_output_file(const std::string &filename)
1786 AVFormatContext *avctx = avformat_alloc_context();
1787 avctx->oformat = av_guess_format(NULL, filename.c_str(), NULL);
1788 assert(filename.size() < sizeof(avctx->filename) - 1);
1789 strcpy(avctx->filename, filename.c_str());
1791 string url = "file:" + filename;
1792 int ret = avio_open2(&avctx->pb, url.c_str(), AVIO_FLAG_WRITE, &avctx->interrupt_callback, NULL);
1794 char tmp[AV_ERROR_MAX_STRING_SIZE];
1795 fprintf(stderr, "%s: avio_open2() failed: %s\n", filename.c_str(), av_make_error_string(tmp, sizeof(tmp), ret));
1799 string video_extradata; // FIXME: See other comment about global headers.
1800 if (global_flags.x264_video_to_disk) {
1801 video_extradata = x264_encoder->get_global_headers();
1804 current_file_mux_metrics.reset();
1807 lock_guard<mutex> lock(file_audio_encoder_mutex);
1808 AVCodecParametersWithDeleter audio_codecpar = file_audio_encoder->get_codec_parameters();
1809 file_mux.reset(new Mux(avctx, frame_width, frame_height, Mux::CODEC_H264, video_extradata, audio_codecpar.get(), TIMEBASE,
1810 std::bind(&DiskSpaceEstimator::report_write, disk_space_estimator, filename, _1),
1811 Mux::WRITE_BACKGROUND,
1812 { ¤t_file_mux_metrics, &total_mux_metrics }));
1814 metric_current_file_start_time_seconds = get_timestamp_for_metrics();
1816 if (global_flags.x264_video_to_disk) {
1817 x264_encoder->add_mux(file_mux.get());
1821 void QuickSyncEncoderImpl::encode_thread_func()
1823 pthread_setname_np(pthread_self(), "QS_Encode");
1825 int64_t last_dts = -1;
1826 int gop_start_display_frame_num = 0;
1827 for (int display_frame_num = 0; ; ++display_frame_num) {
1828 // Wait for the frame to be in the queue. Note that this only means
1829 // we started rendering it.
1832 unique_lock<mutex> lock(frame_queue_mutex);
1833 frame_queue_nonempty.wait(lock, [this]{
1834 return encode_thread_should_quit || !pending_video_frames.empty();
1836 if (encode_thread_should_quit && pending_video_frames.empty()) {
1837 // We may have queued frames left in the reorder buffer
1838 // that were supposed to be B-frames, but have no P-frame
1839 // to be encoded against. If so, encode them all as
1840 // P-frames instead. Note that this happens under the mutex,
1841 // but nobody else uses it at this point, since we're shutting down,
1842 // so there's no contention.
1843 encode_remaining_frames_as_p(quicksync_encoding_frame_num, gop_start_display_frame_num, last_dts);
1846 frame = move(pending_video_frames.front());
1847 pending_video_frames.pop();
1851 // Pass the frame on to x264 (or uncompressed to HTTP) as needed.
1852 // Note that this implicitly waits for the frame to be done rendering.
1853 pass_frame(frame, display_frame_num, frame.pts, frame.duration);
1855 if (global_flags.x264_video_to_disk) {
1856 unique_lock<mutex> lock(storage_task_queue_mutex);
1857 release_gl_surface(display_frame_num);
1861 reorder_buffer[display_frame_num] = move(frame);
1863 // Now encode as many QuickSync frames as we can using the frames we have available.
1864 // (It could be zero, or it could be multiple.) FIXME: make a function.
1867 int frame_type, quicksync_display_frame_num;
1868 encoding2display_order(quicksync_encoding_frame_num, intra_period, intra_idr_period, ip_period,
1869 &quicksync_display_frame_num, &frame_type, &pts_lag);
1870 if (!reorder_buffer.count(quicksync_display_frame_num)) {
1873 frame = move(reorder_buffer[quicksync_display_frame_num]);
1874 reorder_buffer.erase(quicksync_display_frame_num);
1876 if (frame_type == FRAME_IDR) {
1877 // Release any reference frames from the previous GOP.
1878 for (const ReferenceFrame &frame : reference_frames) {
1879 release_gl_surface(frame.display_number);
1881 reference_frames.clear();
1882 current_ref_frame_num = 0;
1883 gop_start_display_frame_num = quicksync_display_frame_num;
1886 // Determine the dts of this frame.
1888 if (pts_lag == -1) {
1889 assert(last_dts != -1);
1890 dts = last_dts + (TIMEBASE / MAX_FPS);
1892 dts = frame.pts - pts_lag;
1896 encode_frame(frame, quicksync_encoding_frame_num, quicksync_display_frame_num, gop_start_display_frame_num, frame_type, frame.pts, dts, frame.duration, frame.ycbcr_coefficients);
1897 ++quicksync_encoding_frame_num;
1902 void QuickSyncEncoderImpl::encode_remaining_frames_as_p(int encoding_frame_num, int gop_start_display_frame_num, int64_t last_dts)
1904 if (reorder_buffer.empty()) {
1908 for (auto &pending_frame : reorder_buffer) {
1909 int display_frame_num = pending_frame.first;
1910 assert(display_frame_num > 0);
1911 PendingFrame frame = move(pending_frame.second);
1912 int64_t dts = last_dts + (TIMEBASE / MAX_FPS);
1913 printf("Finalizing encode: Encoding leftover frame %d as P-frame instead of B-frame.\n", display_frame_num);
1914 encode_frame(frame, encoding_frame_num++, display_frame_num, gop_start_display_frame_num, FRAME_P, frame.pts, dts, frame.duration, frame.ycbcr_coefficients);
1919 void QuickSyncEncoderImpl::add_packet_for_uncompressed_frame(int64_t pts, int64_t duration, const uint8_t *data)
1922 memset(&pkt, 0, sizeof(pkt));
1924 pkt.data = const_cast<uint8_t *>(data);
1925 pkt.size = frame_width * frame_height * 2;
1926 pkt.stream_index = 0;
1927 pkt.flags = AV_PKT_FLAG_KEY;
1928 pkt.duration = duration;
1929 stream_mux->add_packet(pkt, pts, pts);
1934 void memcpy_with_pitch(uint8_t *dst, const uint8_t *src, size_t src_width, size_t dst_pitch, size_t height)
1936 if (src_width == dst_pitch) {
1937 memcpy(dst, src, src_width * height);
1939 for (size_t y = 0; y < height; ++y) {
1940 const uint8_t *sptr = src + y * src_width;
1941 uint8_t *dptr = dst + y * dst_pitch;
1942 memcpy(dptr, sptr, src_width);
1949 void QuickSyncEncoderImpl::pass_frame(QuickSyncEncoderImpl::PendingFrame frame, int display_frame_num, int64_t pts, int64_t duration)
1951 // Wait for the GPU to be done with the frame.
1954 sync_status = glClientWaitSync(frame.fence.get(), 0, 0);
1956 if (sync_status == GL_TIMEOUT_EXPIRED) {
1957 // NVIDIA likes to busy-wait; yield instead.
1958 this_thread::sleep_for(milliseconds(1));
1960 } while (sync_status == GL_TIMEOUT_EXPIRED);
1961 assert(sync_status != GL_WAIT_FAILED);
1963 ReceivedTimestamps received_ts = find_received_timestamp(frame.input_frames);
1964 static int frameno = 0;
1965 print_latency("Current mixer latency (video inputs → ready for encode):",
1966 received_ts, false, &frameno, &mixer_latency_histogram);
1968 // Release back any input frames we needed to render this frame.
1969 frame.input_frames.clear();
1973 unique_lock<mutex> lock(storage_task_queue_mutex);
1974 surf = surface_for_frame[display_frame_num];
1975 assert(surf != nullptr);
1977 uint8_t *data = reinterpret_cast<uint8_t *>(surf->y_ptr);
1978 if (global_flags.uncompressed_video_to_http) {
1979 add_packet_for_uncompressed_frame(pts, duration, data);
1980 } else if (global_flags.x264_video_to_http || global_flags.x264_video_to_disk) {
1981 x264_encoder->add_frame(pts, duration, frame.ycbcr_coefficients, data, received_ts);
1985 void QuickSyncEncoderImpl::encode_frame(QuickSyncEncoderImpl::PendingFrame frame, int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num,
1986 int frame_type, int64_t pts, int64_t dts, int64_t duration, YCbCrLumaCoefficients ycbcr_coefficients)
1988 const ReceivedTimestamps received_ts = find_received_timestamp(frame.input_frames);
1992 unique_lock<mutex> lock(storage_task_queue_mutex);
1993 surf = surface_for_frame[display_frame_num];
1994 assert(surf != nullptr);
1999 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->y_egl_image);
2000 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->cbcr_egl_image);
2001 va_status = vaReleaseBufferHandle(va_dpy, surf->surface_image.buf);
2002 CHECK_VASTATUS(va_status, "vaReleaseBufferHandle");
2004 // Upload the frame to VA-API.
2005 unsigned char *surface_p = nullptr;
2006 vaMapBuffer(va_dpy, surf->surface_image.buf, (void **)&surface_p);
2008 unsigned char *va_y_ptr = (unsigned char *)surface_p + surf->surface_image.offsets[0];
2009 memcpy_with_pitch(va_y_ptr, surf->y_ptr, frame_width, surf->surface_image.pitches[0], frame_height);
2011 unsigned char *va_cbcr_ptr = (unsigned char *)surface_p + surf->surface_image.offsets[1];
2012 memcpy_with_pitch(va_cbcr_ptr, surf->cbcr_ptr, (frame_width / 2) * sizeof(uint16_t), surf->surface_image.pitches[1], frame_height / 2);
2014 va_status = vaUnmapBuffer(va_dpy, surf->surface_image.buf);
2015 CHECK_VASTATUS(va_status, "vaUnmapBuffer");
2018 va_status = vaDestroyImage(va_dpy, surf->surface_image.image_id);
2019 CHECK_VASTATUS(va_status, "vaDestroyImage");
2021 // Schedule the frame for encoding.
2022 VASurfaceID va_surface = surf->src_surface;
2023 va_status = vaBeginPicture(va_dpy, context_id, va_surface);
2024 CHECK_VASTATUS(va_status, "vaBeginPicture");
2026 if (frame_type == FRAME_IDR) {
2027 // FIXME: If the mux wants global headers, we should not put the
2028 // SPS/PPS before each IDR frame, but rather put it into the
2029 // codec extradata (formatted differently?).
2031 // NOTE: If we change ycbcr_coefficients, it will not take effect
2032 // before the next IDR frame. This is acceptable, as it should only
2033 // happen on a mode change, which is rare.
2035 render_picture(surf, frame_type, display_frame_num, gop_start_display_frame_num);
2036 if (h264_packedheader) {
2037 render_packedsequence(ycbcr_coefficients);
2038 render_packedpicture();
2041 //render_sequence();
2042 render_picture(surf, frame_type, display_frame_num, gop_start_display_frame_num);
2044 render_slice(encoding_frame_num, display_frame_num, gop_start_display_frame_num, frame_type);
2046 va_status = vaEndPicture(va_dpy, context_id);
2047 CHECK_VASTATUS(va_status, "vaEndPicture");
2049 update_ReferenceFrames(display_frame_num, frame_type);
2051 vector<size_t> ref_display_frame_numbers;
2053 // Lock the references for this frame; otherwise, they could be
2054 // rendered to before this frame is done encoding.
2056 unique_lock<mutex> lock(storage_task_queue_mutex);
2057 for (const ReferenceFrame &frame : reference_frames) {
2058 assert(surface_for_frame.count(frame.display_number));
2059 ++surface_for_frame[frame.display_number]->refcount;
2060 ref_display_frame_numbers.push_back(frame.display_number);
2064 // so now the data is done encoding (well, async job kicked off)...
2065 // we send that to the storage thread
2067 tmp.display_order = display_frame_num;
2068 tmp.frame_type = frame_type;
2071 tmp.duration = duration;
2072 tmp.ycbcr_coefficients = ycbcr_coefficients;
2073 tmp.received_ts = received_ts;
2074 tmp.ref_display_frame_numbers = move(ref_display_frame_numbers);
2075 storage_task_enqueue(move(tmp));
2079 QuickSyncEncoder::QuickSyncEncoder(const std::string &filename, ResourcePool *resource_pool, QSurface *surface, const string &va_display, int width, int height, AVOutputFormat *oformat, X264Encoder *x264_encoder, DiskSpaceEstimator *disk_space_estimator)
2080 : impl(new QuickSyncEncoderImpl(filename, resource_pool, surface, va_display, width, height, oformat, x264_encoder, disk_space_estimator)) {}
2082 // Must be defined here because unique_ptr<> destructor needs to know the impl.
2083 QuickSyncEncoder::~QuickSyncEncoder() {}
2085 void QuickSyncEncoder::add_audio(int64_t pts, vector<float> audio)
2087 impl->add_audio(pts, audio);
2090 bool QuickSyncEncoder::is_zerocopy() const
2092 return impl->is_zerocopy();
2095 bool QuickSyncEncoder::begin_frame(int64_t pts, int64_t duration, YCbCrLumaCoefficients ycbcr_coefficients, const vector<RefCountedFrame> &input_frames, GLuint *y_tex, GLuint *cbcr_tex)
2097 return impl->begin_frame(pts, duration, ycbcr_coefficients, input_frames, y_tex, cbcr_tex);
2100 RefCountedGLsync QuickSyncEncoder::end_frame()
2102 return impl->end_frame();
2105 void QuickSyncEncoder::shutdown()
2110 void QuickSyncEncoder::close_file()
2115 void QuickSyncEncoder::set_stream_mux(Mux *mux)
2117 impl->set_stream_mux(mux);
2120 int64_t QuickSyncEncoder::global_delay() const {
2121 return impl->global_delay();