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 "ref_counted_frame.h"
54 #include "x264_encoder.h"
57 using namespace std::chrono;
58 using namespace std::placeholders;
63 #define CHECK_VASTATUS(va_status, func) \
64 if (va_status != VA_STATUS_SUCCESS) { \
65 fprintf(stderr, "%s:%d (%s) failed with %d\n", __func__, __LINE__, func, va_status); \
69 #define BUFFER_OFFSET(i) ((char *)NULL + (i))
71 //#include "loadsurface.h"
73 #define NAL_REF_IDC_NONE 0
74 #define NAL_REF_IDC_LOW 1
75 #define NAL_REF_IDC_MEDIUM 2
76 #define NAL_REF_IDC_HIGH 3
84 #define SLICE_TYPE_P 0
85 #define SLICE_TYPE_B 1
86 #define SLICE_TYPE_I 2
87 #define IS_P_SLICE(type) (SLICE_TYPE_P == (type))
88 #define IS_B_SLICE(type) (SLICE_TYPE_B == (type))
89 #define IS_I_SLICE(type) (SLICE_TYPE_I == (type))
92 #define ENTROPY_MODE_CAVLC 0
93 #define ENTROPY_MODE_CABAC 1
95 #define PROFILE_IDC_BASELINE 66
96 #define PROFILE_IDC_MAIN 77
97 #define PROFILE_IDC_HIGH 100
99 #define BITSTREAM_ALLOCATE_STEPPING 4096
100 #define SURFACE_NUM 16 /* 16 surfaces for source YUV */
101 #define MAX_NUM_REF1 16 // Seemingly a hardware-fixed value, not related to SURFACE_NUM
102 #define MAX_NUM_REF2 32 // Seemingly a hardware-fixed value, not related to SURFACE_NUM
104 static constexpr unsigned int MaxFrameNum = (2<<16);
105 static constexpr unsigned int MaxPicOrderCntLsb = (2<<8);
106 static constexpr unsigned int Log2MaxFrameNum = 16;
107 static constexpr unsigned int Log2MaxPicOrderCntLsb = 8;
108 static constexpr int rc_default_modes[] = { // Priority list of modes.
111 VA_RC_VBR_CONSTRAINED,
117 /* thread to save coded data */
118 #define SRC_SURFACE_FREE 0
119 #define SRC_SURFACE_IN_ENCODING 1
122 unsigned int *buffer;
124 int max_size_in_dword;
126 typedef struct __bitstream bitstream;
130 // H.264 video comes out in encoding order (e.g. with two B-frames:
131 // 0, 3, 1, 2, 6, 4, 5, etc.), but uncompressed video needs to
132 // come in the right order. Since we do everything, including waiting
133 // for the frames to come out of OpenGL, in encoding order, we need
134 // a reordering buffer for uncompressed frames so that they come out
135 // correctly. We go the super-lazy way of not making it understand
136 // anything about the true order (which introduces some extra latency,
137 // though); we know that for N B-frames we need at most (N-1) frames
138 // in the reorder buffer, and can just sort on that.
140 // The class also deals with keeping a freelist as needed.
141 class FrameReorderer {
143 FrameReorderer(unsigned queue_length, int width, int height);
146 int64_t pts, duration;
148 ReceivedTimestamps received_ts;
150 // Invert to get the smallest pts first.
151 bool operator< (const Frame &other) const { return pts > other.pts; }
154 // Returns the next frame to insert with its pts, if any. Otherwise -1 and nullptr.
155 // Does _not_ take ownership of data; a copy is taken if needed.
156 // The returned pointer is valid until the next call to reorder_frame, or destruction.
157 // As a special case, if queue_length == 0, will just return pts and data (no reordering needed).
158 Frame reorder_frame(int64_t pts, int64_t duration, uint8_t *data, const ReceivedTimestamps &received_ts);
160 // The same as reorder_frame, but without inserting anything. Used to empty the queue.
161 Frame get_first_frame();
163 bool empty() const { return frames.empty(); }
166 unsigned queue_length;
169 priority_queue<Frame> frames;
170 stack<uint8_t *> freelist; // Includes the last value returned from reorder_frame.
172 // Owns all the pointers. Normally, freelist and frames could do this themselves,
173 // except priority_queue doesn't work well with movable-only types.
174 vector<unique_ptr<uint8_t[]>> owner;
177 FrameReorderer::FrameReorderer(unsigned queue_length, int width, int height)
178 : queue_length(queue_length), width(width), height(height)
180 for (unsigned i = 0; i < queue_length; ++i) {
181 owner.emplace_back(new uint8_t[width * height * 2]);
182 freelist.push(owner.back().get());
186 FrameReorderer::Frame FrameReorderer::reorder_frame(int64_t pts, int64_t duration, uint8_t *data, const ReceivedTimestamps &received_ts)
188 if (queue_length == 0) {
189 return Frame{pts, duration, data, received_ts};
192 assert(!freelist.empty());
193 uint8_t *storage = freelist.top();
195 memcpy(storage, data, width * height * 2);
196 frames.push(Frame{pts, duration, storage, received_ts});
198 if (frames.size() >= queue_length) {
199 return get_first_frame();
201 return Frame{-1, -1, nullptr, steady_clock::time_point::min(), steady_clock::time_point::min()};
205 FrameReorderer::Frame FrameReorderer::get_first_frame()
207 assert(!frames.empty());
208 Frame storage = frames.top();
210 freelist.push(storage.data);
214 class QuickSyncEncoderImpl {
216 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);
217 ~QuickSyncEncoderImpl();
218 void add_audio(int64_t pts, vector<float> audio);
219 bool begin_frame(GLuint *y_tex, GLuint *cbcr_tex);
220 RefCountedGLsync end_frame(int64_t pts, int64_t duration, const vector<RefCountedFrame> &input_frames);
222 void release_gl_resources();
223 void set_stream_mux(Mux *mux)
228 // So we never get negative dts.
229 int64_t global_delay() const {
230 return int64_t(ip_period - 1) * (TIMEBASE / MAX_FPS);
234 struct storage_task {
235 unsigned long long display_order;
238 int64_t pts, dts, duration;
239 ReceivedTimestamps received_ts;
241 struct PendingFrame {
242 RefCountedGLsync fence;
243 vector<RefCountedFrame> input_frames;
244 int64_t pts, duration;
247 void open_output_file(const std::string &filename);
248 void encode_thread_func();
249 void encode_remaining_frames_as_p(int encoding_frame_num, int gop_start_display_frame_num, int64_t last_dts);
250 void add_packet_for_uncompressed_frame(int64_t pts, int64_t duration, const uint8_t *data);
251 void encode_frame(PendingFrame frame, int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num,
252 int frame_type, int64_t pts, int64_t dts, int64_t duration);
253 void storage_task_thread();
254 void storage_task_enqueue(storage_task task);
255 void save_codeddata(storage_task task);
256 int render_packedsequence();
257 int render_packedpicture();
258 void render_packedslice();
259 int render_sequence();
260 int render_picture(int frame_type, int display_frame_num, int gop_start_display_frame_num);
261 void sps_rbsp(bitstream *bs);
262 void pps_rbsp(bitstream *bs);
263 int build_packed_pic_buffer(unsigned char **header_buffer);
264 int render_slice(int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num, int frame_type);
265 void slice_header(bitstream *bs);
266 int build_packed_seq_buffer(unsigned char **header_buffer);
267 int build_packed_slice_buffer(unsigned char **header_buffer);
268 int init_va(const string &va_display);
270 void enable_zerocopy_if_possible();
271 VADisplay va_open_display(const string &va_display);
272 void va_close_display(VADisplay va_dpy);
274 void release_encode();
275 void update_ReferenceFrames(int frame_type);
276 int update_RefPicList(int frame_type);
278 bool is_shutdown = false;
279 bool has_released_gl_resources = false;
283 thread encode_thread, storage_thread;
285 mutex storage_task_queue_mutex;
286 condition_variable storage_task_queue_changed;
287 int srcsurface_status[SURFACE_NUM]; // protected by storage_task_queue_mutex
288 queue<storage_task> storage_task_queue; // protected by storage_task_queue_mutex
289 bool storage_thread_should_quit = false; // protected by storage_task_queue_mutex
291 mutex frame_queue_mutex;
292 condition_variable frame_queue_nonempty;
293 bool encode_thread_should_quit = false; // under frame_queue_mutex
295 int current_storage_frame;
297 map<int, PendingFrame> pending_video_frames; // under frame_queue_mutex
298 movit::ResourcePool *resource_pool;
301 unique_ptr<AudioEncoder> file_audio_encoder;
303 unique_ptr<FrameReorderer> reorderer;
304 X264Encoder *x264_encoder; // nullptr if not using x264.
306 Mux* stream_mux = nullptr; // To HTTP.
307 unique_ptr<Mux> file_mux; // To local disk.
309 Display *x11_display = nullptr;
311 // Encoder parameters
313 VAProfile h264_profile = (VAProfile)~0;
314 VAConfigAttrib config_attrib[VAConfigAttribTypeMax];
315 int config_attrib_num = 0, enc_packed_header_idx;
318 VASurfaceID src_surface, ref_surface;
319 VABufferID coded_buf;
321 VAImage surface_image;
322 GLuint y_tex, cbcr_tex;
324 // Only if use_zerocopy == true.
325 EGLImage y_egl_image, cbcr_egl_image;
327 // Only if use_zerocopy == false.
329 uint8_t *y_ptr, *cbcr_ptr;
330 size_t y_offset, cbcr_offset;
332 GLSurface gl_surfaces[SURFACE_NUM];
334 VAConfigID config_id;
335 VAContextID context_id;
336 VAEncSequenceParameterBufferH264 seq_param;
337 VAEncPictureParameterBufferH264 pic_param;
338 VAEncSliceParameterBufferH264 slice_param;
339 VAPictureH264 CurrentCurrPic;
340 VAPictureH264 ReferenceFrames[MAX_NUM_REF1], RefPicList0_P[MAX_NUM_REF2], RefPicList0_B[MAX_NUM_REF2], RefPicList1_B[MAX_NUM_REF2];
342 // Static quality settings.
343 static constexpr unsigned int frame_bitrate = 15000000 / 60; // Doesn't really matter; only initial_qp does.
344 static constexpr unsigned int num_ref_frames = 2;
345 static constexpr int initial_qp = 15;
346 static constexpr int minimal_qp = 0;
347 static constexpr int intra_period = 30;
348 static constexpr int intra_idr_period = MAX_FPS; // About a second; more at lower frame rates. Not ideal.
350 // Quality settings that are meant to be static, but might be overridden
352 int constraint_set_flag = 0;
353 int h264_packedheader = 0; /* support pack header? */
354 int h264_maxref = (1<<16|1);
355 int h264_entropy_mode = 1; /* cabac */
359 unsigned int current_frame_num = 0;
360 unsigned int numShortTerm = 0;
364 int frame_width_mbaligned;
365 int frame_height_mbaligned;
367 DiskSpaceEstimator *disk_space_estimator;
370 // Supposedly vaRenderPicture() is supposed to destroy the buffer implicitly,
371 // but if we don't delete it here, we get leaks. The GStreamer implementation
373 static void render_picture_and_delete(VADisplay dpy, VAContextID context, VABufferID *buffers, int num_buffers)
375 VAStatus va_status = vaRenderPicture(dpy, context, buffers, num_buffers);
376 CHECK_VASTATUS(va_status, "vaRenderPicture");
378 for (int i = 0; i < num_buffers; ++i) {
379 va_status = vaDestroyBuffer(dpy, buffers[i]);
380 CHECK_VASTATUS(va_status, "vaDestroyBuffer");
385 va_swap32(unsigned int val)
387 unsigned char *pval = (unsigned char *)&val;
389 return ((pval[0] << 24) |
396 bitstream_start(bitstream *bs)
398 bs->max_size_in_dword = BITSTREAM_ALLOCATE_STEPPING;
399 bs->buffer = (unsigned int *)calloc(bs->max_size_in_dword * sizeof(int), 1);
404 bitstream_end(bitstream *bs)
406 int pos = (bs->bit_offset >> 5);
407 int bit_offset = (bs->bit_offset & 0x1f);
408 int bit_left = 32 - bit_offset;
411 bs->buffer[pos] = va_swap32((bs->buffer[pos] << bit_left));
416 bitstream_put_ui(bitstream *bs, unsigned int val, int size_in_bits)
418 int pos = (bs->bit_offset >> 5);
419 int bit_offset = (bs->bit_offset & 0x1f);
420 int bit_left = 32 - bit_offset;
425 bs->bit_offset += size_in_bits;
427 if (bit_left > size_in_bits) {
428 bs->buffer[pos] = (bs->buffer[pos] << size_in_bits | val);
430 size_in_bits -= bit_left;
431 if (bit_left >= 32) {
432 bs->buffer[pos] = (val >> size_in_bits);
434 bs->buffer[pos] = (bs->buffer[pos] << bit_left) | (val >> size_in_bits);
436 bs->buffer[pos] = va_swap32(bs->buffer[pos]);
438 if (pos + 1 == bs->max_size_in_dword) {
439 bs->max_size_in_dword += BITSTREAM_ALLOCATE_STEPPING;
440 bs->buffer = (unsigned int *)realloc(bs->buffer, bs->max_size_in_dword * sizeof(unsigned int));
443 bs->buffer[pos + 1] = val;
448 bitstream_put_ue(bitstream *bs, unsigned int val)
450 int size_in_bits = 0;
458 bitstream_put_ui(bs, 0, size_in_bits - 1); // leading zero
459 bitstream_put_ui(bs, val, size_in_bits);
463 bitstream_put_se(bitstream *bs, int val)
465 unsigned int new_val;
470 new_val = 2 * val - 1;
472 bitstream_put_ue(bs, new_val);
476 bitstream_byte_aligning(bitstream *bs, int bit)
478 int bit_offset = (bs->bit_offset & 0x7);
479 int bit_left = 8 - bit_offset;
485 assert(bit == 0 || bit == 1);
488 new_val = (1 << bit_left) - 1;
492 bitstream_put_ui(bs, new_val, bit_left);
496 rbsp_trailing_bits(bitstream *bs)
498 bitstream_put_ui(bs, 1, 1);
499 bitstream_byte_aligning(bs, 0);
502 static void nal_start_code_prefix(bitstream *bs)
504 bitstream_put_ui(bs, 0x00000001, 32);
507 static void nal_header(bitstream *bs, int nal_ref_idc, int nal_unit_type)
509 bitstream_put_ui(bs, 0, 1); /* forbidden_zero_bit: 0 */
510 bitstream_put_ui(bs, nal_ref_idc, 2);
511 bitstream_put_ui(bs, nal_unit_type, 5);
514 void QuickSyncEncoderImpl::sps_rbsp(bitstream *bs)
516 int profile_idc = PROFILE_IDC_BASELINE;
518 if (h264_profile == VAProfileH264High)
519 profile_idc = PROFILE_IDC_HIGH;
520 else if (h264_profile == VAProfileH264Main)
521 profile_idc = PROFILE_IDC_MAIN;
523 bitstream_put_ui(bs, profile_idc, 8); /* profile_idc */
524 bitstream_put_ui(bs, !!(constraint_set_flag & 1), 1); /* constraint_set0_flag */
525 bitstream_put_ui(bs, !!(constraint_set_flag & 2), 1); /* constraint_set1_flag */
526 bitstream_put_ui(bs, !!(constraint_set_flag & 4), 1); /* constraint_set2_flag */
527 bitstream_put_ui(bs, !!(constraint_set_flag & 8), 1); /* constraint_set3_flag */
528 bitstream_put_ui(bs, 0, 4); /* reserved_zero_4bits */
529 bitstream_put_ui(bs, seq_param.level_idc, 8); /* level_idc */
530 bitstream_put_ue(bs, seq_param.seq_parameter_set_id); /* seq_parameter_set_id */
532 if ( profile_idc == PROFILE_IDC_HIGH) {
533 bitstream_put_ue(bs, 1); /* chroma_format_idc = 1, 4:2:0 */
534 bitstream_put_ue(bs, 0); /* bit_depth_luma_minus8 */
535 bitstream_put_ue(bs, 0); /* bit_depth_chroma_minus8 */
536 bitstream_put_ui(bs, 0, 1); /* qpprime_y_zero_transform_bypass_flag */
537 bitstream_put_ui(bs, 0, 1); /* seq_scaling_matrix_present_flag */
540 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_frame_num_minus4); /* log2_max_frame_num_minus4 */
541 bitstream_put_ue(bs, seq_param.seq_fields.bits.pic_order_cnt_type); /* pic_order_cnt_type */
543 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0)
544 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4); /* log2_max_pic_order_cnt_lsb_minus4 */
549 bitstream_put_ue(bs, seq_param.max_num_ref_frames); /* num_ref_frames */
550 bitstream_put_ui(bs, 0, 1); /* gaps_in_frame_num_value_allowed_flag */
552 bitstream_put_ue(bs, seq_param.picture_width_in_mbs - 1); /* pic_width_in_mbs_minus1 */
553 bitstream_put_ue(bs, seq_param.picture_height_in_mbs - 1); /* pic_height_in_map_units_minus1 */
554 bitstream_put_ui(bs, seq_param.seq_fields.bits.frame_mbs_only_flag, 1); /* frame_mbs_only_flag */
556 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
560 bitstream_put_ui(bs, seq_param.seq_fields.bits.direct_8x8_inference_flag, 1); /* direct_8x8_inference_flag */
561 bitstream_put_ui(bs, seq_param.frame_cropping_flag, 1); /* frame_cropping_flag */
563 if (seq_param.frame_cropping_flag) {
564 bitstream_put_ue(bs, seq_param.frame_crop_left_offset); /* frame_crop_left_offset */
565 bitstream_put_ue(bs, seq_param.frame_crop_right_offset); /* frame_crop_right_offset */
566 bitstream_put_ue(bs, seq_param.frame_crop_top_offset); /* frame_crop_top_offset */
567 bitstream_put_ue(bs, seq_param.frame_crop_bottom_offset); /* frame_crop_bottom_offset */
570 //if ( frame_bit_rate < 0 ) { //TODO EW: the vui header isn't correct
572 bitstream_put_ui(bs, 0, 1); /* vui_parameters_present_flag */
574 bitstream_put_ui(bs, 1, 1); /* vui_parameters_present_flag */
575 bitstream_put_ui(bs, 0, 1); /* aspect_ratio_info_present_flag */
576 bitstream_put_ui(bs, 0, 1); /* overscan_info_present_flag */
577 bitstream_put_ui(bs, 1, 1); /* video_signal_type_present_flag */
579 bitstream_put_ui(bs, 5, 3); /* video_format (5 = Unspecified) */
580 bitstream_put_ui(bs, 0, 1); /* video_full_range_flag */
581 bitstream_put_ui(bs, 1, 1); /* colour_description_present_flag */
583 bitstream_put_ui(bs, 1, 8); /* colour_primaries (1 = BT.709) */
584 bitstream_put_ui(bs, 2, 8); /* transfer_characteristics (2 = unspecified, since we use sRGB) */
585 bitstream_put_ui(bs, 6, 8); /* matrix_coefficients (6 = BT.601/SMPTE 170M) */
588 bitstream_put_ui(bs, 0, 1); /* chroma_loc_info_present_flag */
589 bitstream_put_ui(bs, 1, 1); /* timing_info_present_flag */
591 bitstream_put_ui(bs, 1, 32); // FPS
592 bitstream_put_ui(bs, TIMEBASE * 2, 32); // FPS
593 bitstream_put_ui(bs, 1, 1);
595 bitstream_put_ui(bs, 1, 1); /* nal_hrd_parameters_present_flag */
598 bitstream_put_ue(bs, 0); /* cpb_cnt_minus1 */
599 bitstream_put_ui(bs, 4, 4); /* bit_rate_scale */
600 bitstream_put_ui(bs, 6, 4); /* cpb_size_scale */
602 bitstream_put_ue(bs, frame_bitrate - 1); /* bit_rate_value_minus1[0] */
603 bitstream_put_ue(bs, frame_bitrate*8 - 1); /* cpb_size_value_minus1[0] */
604 bitstream_put_ui(bs, 1, 1); /* cbr_flag[0] */
606 bitstream_put_ui(bs, 23, 5); /* initial_cpb_removal_delay_length_minus1 */
607 bitstream_put_ui(bs, 23, 5); /* cpb_removal_delay_length_minus1 */
608 bitstream_put_ui(bs, 23, 5); /* dpb_output_delay_length_minus1 */
609 bitstream_put_ui(bs, 23, 5); /* time_offset_length */
611 bitstream_put_ui(bs, 0, 1); /* vcl_hrd_parameters_present_flag */
612 bitstream_put_ui(bs, 0, 1); /* low_delay_hrd_flag */
614 bitstream_put_ui(bs, 0, 1); /* pic_struct_present_flag */
615 bitstream_put_ui(bs, 0, 1); /* bitstream_restriction_flag */
618 rbsp_trailing_bits(bs); /* rbsp_trailing_bits */
622 void QuickSyncEncoderImpl::pps_rbsp(bitstream *bs)
624 bitstream_put_ue(bs, pic_param.pic_parameter_set_id); /* pic_parameter_set_id */
625 bitstream_put_ue(bs, pic_param.seq_parameter_set_id); /* seq_parameter_set_id */
627 bitstream_put_ui(bs, pic_param.pic_fields.bits.entropy_coding_mode_flag, 1); /* entropy_coding_mode_flag */
629 bitstream_put_ui(bs, 0, 1); /* pic_order_present_flag: 0 */
631 bitstream_put_ue(bs, 0); /* num_slice_groups_minus1 */
633 bitstream_put_ue(bs, pic_param.num_ref_idx_l0_active_minus1); /* num_ref_idx_l0_active_minus1 */
634 bitstream_put_ue(bs, pic_param.num_ref_idx_l1_active_minus1); /* num_ref_idx_l1_active_minus1 1 */
636 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_pred_flag, 1); /* weighted_pred_flag: 0 */
637 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_bipred_idc, 2); /* weighted_bipred_idc: 0 */
639 bitstream_put_se(bs, pic_param.pic_init_qp - 26); /* pic_init_qp_minus26 */
640 bitstream_put_se(bs, 0); /* pic_init_qs_minus26 */
641 bitstream_put_se(bs, 0); /* chroma_qp_index_offset */
643 bitstream_put_ui(bs, pic_param.pic_fields.bits.deblocking_filter_control_present_flag, 1); /* deblocking_filter_control_present_flag */
644 bitstream_put_ui(bs, 0, 1); /* constrained_intra_pred_flag */
645 bitstream_put_ui(bs, 0, 1); /* redundant_pic_cnt_present_flag */
648 bitstream_put_ui(bs, pic_param.pic_fields.bits.transform_8x8_mode_flag, 1); /*transform_8x8_mode_flag */
649 bitstream_put_ui(bs, 0, 1); /* pic_scaling_matrix_present_flag */
650 bitstream_put_se(bs, pic_param.second_chroma_qp_index_offset ); /*second_chroma_qp_index_offset */
652 rbsp_trailing_bits(bs);
655 void QuickSyncEncoderImpl::slice_header(bitstream *bs)
657 int first_mb_in_slice = slice_param.macroblock_address;
659 bitstream_put_ue(bs, first_mb_in_slice); /* first_mb_in_slice: 0 */
660 bitstream_put_ue(bs, slice_param.slice_type); /* slice_type */
661 bitstream_put_ue(bs, slice_param.pic_parameter_set_id); /* pic_parameter_set_id: 0 */
662 bitstream_put_ui(bs, pic_param.frame_num, seq_param.seq_fields.bits.log2_max_frame_num_minus4 + 4); /* frame_num */
664 /* frame_mbs_only_flag == 1 */
665 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
670 if (pic_param.pic_fields.bits.idr_pic_flag)
671 bitstream_put_ue(bs, slice_param.idr_pic_id); /* idr_pic_id: 0 */
673 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0) {
674 bitstream_put_ui(bs, pic_param.CurrPic.TopFieldOrderCnt, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 + 4);
675 /* pic_order_present_flag == 0 */
681 /* redundant_pic_cnt_present_flag == 0 */
683 if (IS_P_SLICE(slice_param.slice_type)) {
684 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
686 if (slice_param.num_ref_idx_active_override_flag)
687 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
689 /* ref_pic_list_reordering */
690 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
691 } else if (IS_B_SLICE(slice_param.slice_type)) {
692 bitstream_put_ui(bs, slice_param.direct_spatial_mv_pred_flag, 1); /* direct_spatial_mv_pred: 1 */
694 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
696 if (slice_param.num_ref_idx_active_override_flag) {
697 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
698 bitstream_put_ue(bs, slice_param.num_ref_idx_l1_active_minus1);
701 /* ref_pic_list_reordering */
702 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
703 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l1: 0 */
706 if ((pic_param.pic_fields.bits.weighted_pred_flag &&
707 IS_P_SLICE(slice_param.slice_type)) ||
708 ((pic_param.pic_fields.bits.weighted_bipred_idc == 1) &&
709 IS_B_SLICE(slice_param.slice_type))) {
710 /* FIXME: fill weight/offset table */
714 /* dec_ref_pic_marking */
715 if (pic_param.pic_fields.bits.reference_pic_flag) { /* nal_ref_idc != 0 */
716 unsigned char no_output_of_prior_pics_flag = 0;
717 unsigned char long_term_reference_flag = 0;
718 unsigned char adaptive_ref_pic_marking_mode_flag = 0;
720 if (pic_param.pic_fields.bits.idr_pic_flag) {
721 bitstream_put_ui(bs, no_output_of_prior_pics_flag, 1); /* no_output_of_prior_pics_flag: 0 */
722 bitstream_put_ui(bs, long_term_reference_flag, 1); /* long_term_reference_flag: 0 */
724 bitstream_put_ui(bs, adaptive_ref_pic_marking_mode_flag, 1); /* adaptive_ref_pic_marking_mode_flag: 0 */
728 if (pic_param.pic_fields.bits.entropy_coding_mode_flag &&
729 !IS_I_SLICE(slice_param.slice_type))
730 bitstream_put_ue(bs, slice_param.cabac_init_idc); /* cabac_init_idc: 0 */
732 bitstream_put_se(bs, slice_param.slice_qp_delta); /* slice_qp_delta: 0 */
734 /* ignore for SP/SI */
736 if (pic_param.pic_fields.bits.deblocking_filter_control_present_flag) {
737 bitstream_put_ue(bs, slice_param.disable_deblocking_filter_idc); /* disable_deblocking_filter_idc: 0 */
739 if (slice_param.disable_deblocking_filter_idc != 1) {
740 bitstream_put_se(bs, slice_param.slice_alpha_c0_offset_div2); /* slice_alpha_c0_offset_div2: 2 */
741 bitstream_put_se(bs, slice_param.slice_beta_offset_div2); /* slice_beta_offset_div2: 2 */
745 if (pic_param.pic_fields.bits.entropy_coding_mode_flag) {
746 bitstream_byte_aligning(bs, 1);
750 int QuickSyncEncoderImpl::build_packed_pic_buffer(unsigned char **header_buffer)
754 bitstream_start(&bs);
755 nal_start_code_prefix(&bs);
756 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_PPS);
760 *header_buffer = (unsigned char *)bs.buffer;
761 return bs.bit_offset;
765 QuickSyncEncoderImpl::build_packed_seq_buffer(unsigned char **header_buffer)
769 bitstream_start(&bs);
770 nal_start_code_prefix(&bs);
771 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_SPS);
775 *header_buffer = (unsigned char *)bs.buffer;
776 return bs.bit_offset;
779 int QuickSyncEncoderImpl::build_packed_slice_buffer(unsigned char **header_buffer)
782 int is_idr = !!pic_param.pic_fields.bits.idr_pic_flag;
783 int is_ref = !!pic_param.pic_fields.bits.reference_pic_flag;
785 bitstream_start(&bs);
786 nal_start_code_prefix(&bs);
788 if (IS_I_SLICE(slice_param.slice_type)) {
789 nal_header(&bs, NAL_REF_IDC_HIGH, is_idr ? NAL_IDR : NAL_NON_IDR);
790 } else if (IS_P_SLICE(slice_param.slice_type)) {
791 nal_header(&bs, NAL_REF_IDC_MEDIUM, NAL_NON_IDR);
793 assert(IS_B_SLICE(slice_param.slice_type));
794 nal_header(&bs, is_ref ? NAL_REF_IDC_LOW : NAL_REF_IDC_NONE, NAL_NON_IDR);
800 *header_buffer = (unsigned char *)bs.buffer;
801 return bs.bit_offset;
806 Assume frame sequence is: Frame#0, #1, #2, ..., #M, ..., #X, ... (encoding order)
807 1) period between Frame #X and Frame #N = #X - #N
808 2) 0 means infinite for intra_period/intra_idr_period, and 0 is invalid for ip_period
809 3) intra_idr_period % intra_period (intra_period > 0) and intra_period % ip_period must be 0
810 4) intra_period and intra_idr_period take precedence over ip_period
811 5) if ip_period > 1, intra_period and intra_idr_period are not the strict periods
812 of I/IDR frames, see bellow examples
813 -------------------------------------------------------------------
814 intra_period intra_idr_period ip_period frame sequence (intra_period/intra_idr_period/ip_period)
815 0 ignored 1 IDRPPPPPPP ... (No IDR/I any more)
816 0 ignored >=2 IDR(PBB)(PBB)... (No IDR/I any more)
817 1 0 ignored IDRIIIIIII... (No IDR any more)
818 1 1 ignored IDR IDR IDR IDR...
819 1 >=2 ignored IDRII IDRII IDR... (1/3/ignore)
820 >=2 0 1 IDRPPP IPPP I... (3/0/1)
821 >=2 0 >=2 IDR(PBB)(PBB)(IBB) (6/0/3)
822 (PBB)(IBB)(PBB)(IBB)...
823 >=2 >=2 1 IDRPPPPP IPPPPP IPPPPP (6/18/1)
824 IDRPPPPP IPPPPP IPPPPP...
825 >=2 >=2 >=2 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)} (6/18/3)
826 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)}...
827 {IDR(PBB)(PBB)(IBB)(PBB)} (6/12/3)
828 {IDR(PBB)(PBB)(IBB)(PBB)}...
829 {IDR(PBB)(PBB)} (6/6/3)
833 // General pts/dts strategy:
835 // Getting pts and dts right with variable frame rate (VFR) and B-frames can be a
836 // bit tricky. We assume first of all that the frame rate never goes _above_
837 // MAX_FPS, which gives us a frame period N. The decoder can always decode
838 // in at least this speed, as long at dts <= pts (the frame is not attempted
839 // presented before it is decoded). Furthermore, we never have longer chains of
840 // B-frames than a fixed constant C. (In a B-frame chain, we say that the base
841 // I/P-frame has order O=0, the B-frame depending on it directly has order O=1,
842 // etc. The last frame in the chain, which no B-frames depend on, is the “tip”
843 // frame, with an order O <= C.)
845 // Many strategies are possible, but we establish these rules:
847 // - Tip frames have dts = pts - (C-O)*N.
848 // - Non-tip frames have dts = dts_last + N.
850 // An example, with C=2 and N=10 and the data flow showed with arrows:
853 // pts: 30 40 50 60 70 80
855 // dts: 10 30 20 60 50←40
860 // To show that this works fine also with irregular spacings, let's say that
861 // the third frame is delayed a bit (something earlier was dropped). Now the
862 // situation looks like this:
865 // pts: 30 40 80 90 100 110
867 // dts: 10 30 20 90 50←40
872 // The resetting on every tip frame makes sure dts never ends up lagging a lot
873 // behind pts, and the subtraction of (C-O)*N makes sure pts <= dts.
875 // In the output of this function, if <dts_lag> is >= 0, it means to reset the
876 // dts from the current pts minus <dts_lag>, while if it's -1, the frame is not
877 // a tip frame and should be given a dts based on the previous one.
882 void encoding2display_order(
883 int encoding_order, int intra_period,
884 int intra_idr_period, int ip_period,
885 int *displaying_order,
886 int *frame_type, int *pts_lag)
888 int encoding_order_gop = 0;
892 if (intra_period == 1) { /* all are I/IDR frames */
893 *displaying_order = encoding_order;
894 if (intra_idr_period == 0)
895 *frame_type = (encoding_order == 0)?FRAME_IDR:FRAME_I;
897 *frame_type = (encoding_order % intra_idr_period == 0)?FRAME_IDR:FRAME_I;
901 if (intra_period == 0)
902 intra_idr_period = 0;
904 if (ip_period == 1) {
905 // No B-frames, sequence is like IDR PPPPP IPPPPP.
906 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % intra_idr_period);
907 *displaying_order = encoding_order;
909 if (encoding_order_gop == 0) { /* the first frame */
910 *frame_type = FRAME_IDR;
911 } else if (intra_period != 0 && /* have I frames */
912 encoding_order_gop >= 2 &&
913 (encoding_order_gop % intra_period == 0)) {
914 *frame_type = FRAME_I;
916 *frame_type = FRAME_P;
921 // We have B-frames. Sequence is like IDR (PBB)(PBB)(IBB)(PBB).
922 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % (intra_idr_period + 1));
923 *pts_lag = -1; // Most frames are not tip frames.
925 if (encoding_order_gop == 0) { /* the first frame */
926 *frame_type = FRAME_IDR;
927 *displaying_order = encoding_order;
928 // IDR frames are a special case; I honestly can't find the logic behind
929 // why this is the right thing, but it seems to line up nicely in practice :-)
930 *pts_lag = TIMEBASE / MAX_FPS;
931 } else if (((encoding_order_gop - 1) % ip_period) != 0) { /* B frames */
932 *frame_type = FRAME_B;
933 *displaying_order = encoding_order - 1;
934 if ((encoding_order_gop % ip_period) == 0) {
935 *pts_lag = 0; // Last B-frame.
937 } else if (intra_period != 0 && /* have I frames */
938 encoding_order_gop >= 2 &&
939 ((encoding_order_gop - 1) / ip_period % (intra_period / ip_period)) == 0) {
940 *frame_type = FRAME_I;
941 *displaying_order = encoding_order + ip_period - 1;
943 *frame_type = FRAME_P;
944 *displaying_order = encoding_order + ip_period - 1;
949 static const char *rc_to_string(int rc_mode)
962 case VA_RC_VBR_CONSTRAINED:
963 return "VBR_CONSTRAINED";
969 void QuickSyncEncoderImpl::enable_zerocopy_if_possible()
971 if (global_flags.uncompressed_video_to_http) {
972 fprintf(stderr, "Disabling zerocopy H.264 encoding due to --http-uncompressed-video.\n");
973 use_zerocopy = false;
974 } else if (global_flags.x264_video_to_http) {
975 fprintf(stderr, "Disabling zerocopy H.264 encoding due to --http-x264-video.\n");
976 use_zerocopy = false;
982 VADisplay QuickSyncEncoderImpl::va_open_display(const string &va_display)
984 if (va_display.empty()) {
985 x11_display = XOpenDisplay(NULL);
987 fprintf(stderr, "error: can't connect to X server!\n");
990 enable_zerocopy_if_possible();
991 return vaGetDisplay(x11_display);
992 } else if (va_display[0] != '/') {
993 x11_display = XOpenDisplay(va_display.c_str());
995 fprintf(stderr, "error: can't connect to X server!\n");
998 enable_zerocopy_if_possible();
999 return vaGetDisplay(x11_display);
1001 drm_fd = open(va_display.c_str(), O_RDWR);
1003 perror(va_display.c_str());
1006 use_zerocopy = false;
1007 return vaGetDisplayDRM(drm_fd);
1011 void QuickSyncEncoderImpl::va_close_display(VADisplay va_dpy)
1014 XCloseDisplay(x11_display);
1015 x11_display = nullptr;
1022 int QuickSyncEncoderImpl::init_va(const string &va_display)
1024 VAProfile profile_list[]={VAProfileH264High, VAProfileH264Main, VAProfileH264Baseline, VAProfileH264ConstrainedBaseline};
1025 VAEntrypoint *entrypoints;
1026 int num_entrypoints, slice_entrypoint;
1027 int support_encode = 0;
1028 int major_ver, minor_ver;
1032 va_dpy = va_open_display(va_display);
1033 va_status = vaInitialize(va_dpy, &major_ver, &minor_ver);
1034 CHECK_VASTATUS(va_status, "vaInitialize");
1036 num_entrypoints = vaMaxNumEntrypoints(va_dpy);
1037 entrypoints = (VAEntrypoint *)malloc(num_entrypoints * sizeof(*entrypoints));
1039 fprintf(stderr, "error: failed to initialize VA entrypoints array\n");
1043 /* use the highest profile */
1044 for (i = 0; i < sizeof(profile_list)/sizeof(profile_list[0]); i++) {
1045 if ((h264_profile != ~0) && h264_profile != profile_list[i])
1048 h264_profile = profile_list[i];
1049 vaQueryConfigEntrypoints(va_dpy, h264_profile, entrypoints, &num_entrypoints);
1050 for (slice_entrypoint = 0; slice_entrypoint < num_entrypoints; slice_entrypoint++) {
1051 if (entrypoints[slice_entrypoint] == VAEntrypointEncSlice) {
1056 if (support_encode == 1)
1060 if (support_encode == 0) {
1061 printf("Can't find VAEntrypointEncSlice for H264 profiles. If you are using a non-Intel GPU\n");
1062 printf("but have one in your system, try launching Nageru with --va-display /dev/dri/renderD128\n");
1063 printf("to use VA-API against DRM instead of X11.\n");
1066 switch (h264_profile) {
1067 case VAProfileH264Baseline:
1069 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
1070 h264_entropy_mode = 0;
1072 case VAProfileH264ConstrainedBaseline:
1073 constraint_set_flag |= (1 << 0 | 1 << 1); /* Annex A.2.2 */
1077 case VAProfileH264Main:
1078 constraint_set_flag |= (1 << 1); /* Annex A.2.2 */
1081 case VAProfileH264High:
1082 constraint_set_flag |= (1 << 3); /* Annex A.2.4 */
1085 h264_profile = VAProfileH264Baseline;
1087 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
1092 VAConfigAttrib attrib[VAConfigAttribTypeMax];
1094 /* find out the format for the render target, and rate control mode */
1095 for (i = 0; i < VAConfigAttribTypeMax; i++)
1096 attrib[i].type = (VAConfigAttribType)i;
1098 va_status = vaGetConfigAttributes(va_dpy, h264_profile, VAEntrypointEncSlice,
1099 &attrib[0], VAConfigAttribTypeMax);
1100 CHECK_VASTATUS(va_status, "vaGetConfigAttributes");
1101 /* check the interested configattrib */
1102 if ((attrib[VAConfigAttribRTFormat].value & VA_RT_FORMAT_YUV420) == 0) {
1103 printf("Not find desired YUV420 RT format\n");
1106 config_attrib[config_attrib_num].type = VAConfigAttribRTFormat;
1107 config_attrib[config_attrib_num].value = VA_RT_FORMAT_YUV420;
1108 config_attrib_num++;
1111 if (attrib[VAConfigAttribRateControl].value != VA_ATTRIB_NOT_SUPPORTED) {
1112 int tmp = attrib[VAConfigAttribRateControl].value;
1114 if (rc_mode == -1 || !(rc_mode & tmp)) {
1115 if (rc_mode != -1) {
1116 printf("Warning: Don't support the specified RateControl mode: %s!!!, switch to ", rc_to_string(rc_mode));
1119 for (i = 0; i < sizeof(rc_default_modes) / sizeof(rc_default_modes[0]); i++) {
1120 if (rc_default_modes[i] & tmp) {
1121 rc_mode = rc_default_modes[i];
1127 config_attrib[config_attrib_num].type = VAConfigAttribRateControl;
1128 config_attrib[config_attrib_num].value = rc_mode;
1129 config_attrib_num++;
1133 if (attrib[VAConfigAttribEncPackedHeaders].value != VA_ATTRIB_NOT_SUPPORTED) {
1134 int tmp = attrib[VAConfigAttribEncPackedHeaders].value;
1136 h264_packedheader = 1;
1137 config_attrib[config_attrib_num].type = VAConfigAttribEncPackedHeaders;
1138 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
1140 if (tmp & VA_ENC_PACKED_HEADER_SEQUENCE) {
1141 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SEQUENCE;
1144 if (tmp & VA_ENC_PACKED_HEADER_PICTURE) {
1145 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_PICTURE;
1148 if (tmp & VA_ENC_PACKED_HEADER_SLICE) {
1149 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SLICE;
1152 if (tmp & VA_ENC_PACKED_HEADER_MISC) {
1153 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_MISC;
1156 enc_packed_header_idx = config_attrib_num;
1157 config_attrib_num++;
1160 if (attrib[VAConfigAttribEncInterlaced].value != VA_ATTRIB_NOT_SUPPORTED) {
1161 config_attrib[config_attrib_num].type = VAConfigAttribEncInterlaced;
1162 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
1163 config_attrib_num++;
1166 if (attrib[VAConfigAttribEncMaxRefFrames].value != VA_ATTRIB_NOT_SUPPORTED) {
1167 h264_maxref = attrib[VAConfigAttribEncMaxRefFrames].value;
1174 int QuickSyncEncoderImpl::setup_encode()
1177 VASurfaceID *tmp_surfaceid;
1178 int codedbuf_size, i;
1179 VASurfaceID src_surface[SURFACE_NUM];
1180 VASurfaceID ref_surface[SURFACE_NUM];
1182 va_status = vaCreateConfig(va_dpy, h264_profile, VAEntrypointEncSlice,
1183 &config_attrib[0], config_attrib_num, &config_id);
1184 CHECK_VASTATUS(va_status, "vaCreateConfig");
1186 /* create source surfaces */
1187 va_status = vaCreateSurfaces(va_dpy,
1188 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
1189 &src_surface[0], SURFACE_NUM,
1191 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
1193 /* create reference surfaces */
1194 va_status = vaCreateSurfaces(va_dpy,
1195 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
1196 &ref_surface[0], SURFACE_NUM,
1198 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
1200 tmp_surfaceid = (VASurfaceID *)calloc(2 * SURFACE_NUM, sizeof(VASurfaceID));
1201 memcpy(tmp_surfaceid, src_surface, SURFACE_NUM * sizeof(VASurfaceID));
1202 memcpy(tmp_surfaceid + SURFACE_NUM, ref_surface, SURFACE_NUM * sizeof(VASurfaceID));
1204 /* Create a context for this encode pipe */
1205 va_status = vaCreateContext(va_dpy, config_id,
1206 frame_width_mbaligned, frame_height_mbaligned,
1208 tmp_surfaceid, 2 * SURFACE_NUM,
1210 CHECK_VASTATUS(va_status, "vaCreateContext");
1211 free(tmp_surfaceid);
1213 codedbuf_size = (frame_width_mbaligned * frame_height_mbaligned * 400) / (16*16);
1215 for (i = 0; i < SURFACE_NUM; i++) {
1216 /* create coded buffer once for all
1217 * other VA buffers which won't be used again after vaRenderPicture.
1218 * so APP can always vaCreateBuffer for every frame
1219 * but coded buffer need to be mapped and accessed after vaRenderPicture/vaEndPicture
1220 * so VA won't maintain the coded buffer
1222 va_status = vaCreateBuffer(va_dpy, context_id, VAEncCodedBufferType,
1223 codedbuf_size, 1, NULL, &gl_surfaces[i].coded_buf);
1224 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1227 /* create OpenGL objects */
1228 //glGenFramebuffers(SURFACE_NUM, fbos);
1230 for (i = 0; i < SURFACE_NUM; i++) {
1232 gl_surfaces[i].y_tex = resource_pool->create_2d_texture(GL_R8, 1, 1);
1233 gl_surfaces[i].cbcr_tex = resource_pool->create_2d_texture(GL_RG8, 1, 1);
1235 gl_surfaces[i].y_tex = resource_pool->create_2d_texture(GL_R8, frame_width, frame_height);
1236 gl_surfaces[i].cbcr_tex = resource_pool->create_2d_texture(GL_RG8, frame_width / 2, frame_height / 2);
1238 // Generate a PBO to read into. It doesn't necessarily fit 1:1 with the VA-API
1239 // buffers, due to potentially differing pitch.
1240 glGenBuffers(1, &gl_surfaces[i].pbo);
1241 glBindBuffer(GL_PIXEL_PACK_BUFFER, gl_surfaces[i].pbo);
1242 glBufferStorage(GL_PIXEL_PACK_BUFFER, frame_width * frame_height * 2, nullptr, GL_MAP_READ_BIT | GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT);
1243 uint8_t *ptr = (uint8_t *)glMapBufferRange(GL_PIXEL_PACK_BUFFER, 0, frame_width * frame_height * 2, GL_MAP_READ_BIT | GL_MAP_PERSISTENT_BIT);
1244 gl_surfaces[i].y_offset = 0;
1245 gl_surfaces[i].cbcr_offset = frame_width * frame_height;
1246 gl_surfaces[i].y_ptr = ptr + gl_surfaces[i].y_offset;
1247 gl_surfaces[i].cbcr_ptr = ptr + gl_surfaces[i].cbcr_offset;
1248 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1252 for (i = 0; i < SURFACE_NUM; i++) {
1253 gl_surfaces[i].src_surface = src_surface[i];
1254 gl_surfaces[i].ref_surface = ref_surface[i];
1260 // Given a list like 1 9 3 0 2 8 4 and a pivot element 3, will produce
1263 template<class T, class C>
1264 static void sort_two(T *begin, T *end, const T &pivot, const C &less_than)
1266 T *middle = partition(begin, end, [&](const T &elem) { return less_than(elem, pivot); });
1267 sort(begin, middle, [&](const T &a, const T &b) { return less_than(b, a); });
1268 sort(middle, end, less_than);
1271 void QuickSyncEncoderImpl::update_ReferenceFrames(int frame_type)
1275 if (frame_type == FRAME_B)
1278 CurrentCurrPic.flags = VA_PICTURE_H264_SHORT_TERM_REFERENCE;
1280 if (numShortTerm > num_ref_frames)
1281 numShortTerm = num_ref_frames;
1282 for (i=numShortTerm-1; i>0; i--)
1283 ReferenceFrames[i] = ReferenceFrames[i-1];
1284 ReferenceFrames[0] = CurrentCurrPic;
1286 current_frame_num++;
1287 if (current_frame_num > MaxFrameNum)
1288 current_frame_num = 0;
1292 int QuickSyncEncoderImpl::update_RefPicList(int frame_type)
1294 const auto descending_by_frame_idx = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1295 return a.frame_idx > b.frame_idx;
1297 const auto ascending_by_top_field_order_cnt = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1298 return a.TopFieldOrderCnt < b.TopFieldOrderCnt;
1300 const auto descending_by_top_field_order_cnt = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1301 return a.TopFieldOrderCnt > b.TopFieldOrderCnt;
1304 if (frame_type == FRAME_P) {
1305 memcpy(RefPicList0_P, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1306 sort(&RefPicList0_P[0], &RefPicList0_P[numShortTerm], descending_by_frame_idx);
1307 } else if (frame_type == FRAME_B) {
1308 memcpy(RefPicList0_B, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1309 sort_two(&RefPicList0_B[0], &RefPicList0_B[numShortTerm], CurrentCurrPic, ascending_by_top_field_order_cnt);
1311 memcpy(RefPicList1_B, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1312 sort_two(&RefPicList1_B[0], &RefPicList1_B[numShortTerm], CurrentCurrPic, descending_by_top_field_order_cnt);
1319 int QuickSyncEncoderImpl::render_sequence()
1321 VABufferID seq_param_buf, rc_param_buf, render_id[2];
1323 VAEncMiscParameterBuffer *misc_param;
1324 VAEncMiscParameterRateControl *misc_rate_ctrl;
1326 seq_param.level_idc = 41 /*SH_LEVEL_3*/;
1327 seq_param.picture_width_in_mbs = frame_width_mbaligned / 16;
1328 seq_param.picture_height_in_mbs = frame_height_mbaligned / 16;
1329 seq_param.bits_per_second = frame_bitrate;
1331 seq_param.intra_period = intra_period;
1332 seq_param.intra_idr_period = intra_idr_period;
1333 seq_param.ip_period = ip_period;
1335 seq_param.max_num_ref_frames = num_ref_frames;
1336 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1337 seq_param.time_scale = TIMEBASE * 2;
1338 seq_param.num_units_in_tick = 1; /* Tc = num_units_in_tick / scale */
1339 seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 = Log2MaxPicOrderCntLsb - 4;
1340 seq_param.seq_fields.bits.log2_max_frame_num_minus4 = Log2MaxFrameNum - 4;;
1341 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1342 seq_param.seq_fields.bits.chroma_format_idc = 1;
1343 seq_param.seq_fields.bits.direct_8x8_inference_flag = 1;
1345 if (frame_width != frame_width_mbaligned ||
1346 frame_height != frame_height_mbaligned) {
1347 seq_param.frame_cropping_flag = 1;
1348 seq_param.frame_crop_left_offset = 0;
1349 seq_param.frame_crop_right_offset = (frame_width_mbaligned - frame_width)/2;
1350 seq_param.frame_crop_top_offset = 0;
1351 seq_param.frame_crop_bottom_offset = (frame_height_mbaligned - frame_height)/2;
1354 va_status = vaCreateBuffer(va_dpy, context_id,
1355 VAEncSequenceParameterBufferType,
1356 sizeof(seq_param), 1, &seq_param, &seq_param_buf);
1357 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1359 va_status = vaCreateBuffer(va_dpy, context_id,
1360 VAEncMiscParameterBufferType,
1361 sizeof(VAEncMiscParameterBuffer) + sizeof(VAEncMiscParameterRateControl),
1362 1, NULL, &rc_param_buf);
1363 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1365 vaMapBuffer(va_dpy, rc_param_buf, (void **)&misc_param);
1366 misc_param->type = VAEncMiscParameterTypeRateControl;
1367 misc_rate_ctrl = (VAEncMiscParameterRateControl *)misc_param->data;
1368 memset(misc_rate_ctrl, 0, sizeof(*misc_rate_ctrl));
1369 misc_rate_ctrl->bits_per_second = frame_bitrate;
1370 misc_rate_ctrl->target_percentage = 66;
1371 misc_rate_ctrl->window_size = 1000;
1372 misc_rate_ctrl->initial_qp = initial_qp;
1373 misc_rate_ctrl->min_qp = minimal_qp;
1374 misc_rate_ctrl->basic_unit_size = 0;
1375 vaUnmapBuffer(va_dpy, rc_param_buf);
1377 render_id[0] = seq_param_buf;
1378 render_id[1] = rc_param_buf;
1380 render_picture_and_delete(va_dpy, context_id, &render_id[0], 2);
1385 static int calc_poc(int pic_order_cnt_lsb, int frame_type)
1387 static int PicOrderCntMsb_ref = 0, pic_order_cnt_lsb_ref = 0;
1388 int prevPicOrderCntMsb, prevPicOrderCntLsb;
1389 int PicOrderCntMsb, TopFieldOrderCnt;
1391 if (frame_type == FRAME_IDR)
1392 prevPicOrderCntMsb = prevPicOrderCntLsb = 0;
1394 prevPicOrderCntMsb = PicOrderCntMsb_ref;
1395 prevPicOrderCntLsb = pic_order_cnt_lsb_ref;
1398 if ((pic_order_cnt_lsb < prevPicOrderCntLsb) &&
1399 ((prevPicOrderCntLsb - pic_order_cnt_lsb) >= (int)(MaxPicOrderCntLsb / 2)))
1400 PicOrderCntMsb = prevPicOrderCntMsb + MaxPicOrderCntLsb;
1401 else if ((pic_order_cnt_lsb > prevPicOrderCntLsb) &&
1402 ((pic_order_cnt_lsb - prevPicOrderCntLsb) > (int)(MaxPicOrderCntLsb / 2)))
1403 PicOrderCntMsb = prevPicOrderCntMsb - MaxPicOrderCntLsb;
1405 PicOrderCntMsb = prevPicOrderCntMsb;
1407 TopFieldOrderCnt = PicOrderCntMsb + pic_order_cnt_lsb;
1409 if (frame_type != FRAME_B) {
1410 PicOrderCntMsb_ref = PicOrderCntMsb;
1411 pic_order_cnt_lsb_ref = pic_order_cnt_lsb;
1414 return TopFieldOrderCnt;
1417 int QuickSyncEncoderImpl::render_picture(int frame_type, int display_frame_num, int gop_start_display_frame_num)
1419 VABufferID pic_param_buf;
1423 pic_param.CurrPic.picture_id = gl_surfaces[display_frame_num % SURFACE_NUM].ref_surface;
1424 pic_param.CurrPic.frame_idx = current_frame_num;
1425 pic_param.CurrPic.flags = 0;
1426 pic_param.CurrPic.TopFieldOrderCnt = calc_poc((display_frame_num - gop_start_display_frame_num) % MaxPicOrderCntLsb, frame_type);
1427 pic_param.CurrPic.BottomFieldOrderCnt = pic_param.CurrPic.TopFieldOrderCnt;
1428 CurrentCurrPic = pic_param.CurrPic;
1430 memcpy(pic_param.ReferenceFrames, ReferenceFrames, numShortTerm*sizeof(VAPictureH264));
1431 for (i = numShortTerm; i < MAX_NUM_REF1; i++) {
1432 pic_param.ReferenceFrames[i].picture_id = VA_INVALID_SURFACE;
1433 pic_param.ReferenceFrames[i].flags = VA_PICTURE_H264_INVALID;
1436 pic_param.pic_fields.bits.idr_pic_flag = (frame_type == FRAME_IDR);
1437 pic_param.pic_fields.bits.reference_pic_flag = (frame_type != FRAME_B);
1438 pic_param.pic_fields.bits.entropy_coding_mode_flag = h264_entropy_mode;
1439 pic_param.pic_fields.bits.deblocking_filter_control_present_flag = 1;
1440 pic_param.frame_num = current_frame_num;
1441 pic_param.coded_buf = gl_surfaces[display_frame_num % SURFACE_NUM].coded_buf;
1442 pic_param.last_picture = false; // FIXME
1443 pic_param.pic_init_qp = initial_qp;
1445 va_status = vaCreateBuffer(va_dpy, context_id, VAEncPictureParameterBufferType,
1446 sizeof(pic_param), 1, &pic_param, &pic_param_buf);
1447 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1449 render_picture_and_delete(va_dpy, context_id, &pic_param_buf, 1);
1454 int QuickSyncEncoderImpl::render_packedsequence()
1456 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1457 VABufferID packedseq_para_bufid, packedseq_data_bufid, render_id[2];
1458 unsigned int length_in_bits;
1459 unsigned char *packedseq_buffer = NULL;
1462 length_in_bits = build_packed_seq_buffer(&packedseq_buffer);
1464 packedheader_param_buffer.type = VAEncPackedHeaderSequence;
1466 packedheader_param_buffer.bit_length = length_in_bits; /*length_in_bits*/
1467 packedheader_param_buffer.has_emulation_bytes = 0;
1468 va_status = vaCreateBuffer(va_dpy,
1470 VAEncPackedHeaderParameterBufferType,
1471 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1472 &packedseq_para_bufid);
1473 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1475 va_status = vaCreateBuffer(va_dpy,
1477 VAEncPackedHeaderDataBufferType,
1478 (length_in_bits + 7) / 8, 1, packedseq_buffer,
1479 &packedseq_data_bufid);
1480 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1482 render_id[0] = packedseq_para_bufid;
1483 render_id[1] = packedseq_data_bufid;
1484 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1486 free(packedseq_buffer);
1492 int QuickSyncEncoderImpl::render_packedpicture()
1494 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1495 VABufferID packedpic_para_bufid, packedpic_data_bufid, render_id[2];
1496 unsigned int length_in_bits;
1497 unsigned char *packedpic_buffer = NULL;
1500 length_in_bits = build_packed_pic_buffer(&packedpic_buffer);
1501 packedheader_param_buffer.type = VAEncPackedHeaderPicture;
1502 packedheader_param_buffer.bit_length = length_in_bits;
1503 packedheader_param_buffer.has_emulation_bytes = 0;
1505 va_status = vaCreateBuffer(va_dpy,
1507 VAEncPackedHeaderParameterBufferType,
1508 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1509 &packedpic_para_bufid);
1510 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1512 va_status = vaCreateBuffer(va_dpy,
1514 VAEncPackedHeaderDataBufferType,
1515 (length_in_bits + 7) / 8, 1, packedpic_buffer,
1516 &packedpic_data_bufid);
1517 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1519 render_id[0] = packedpic_para_bufid;
1520 render_id[1] = packedpic_data_bufid;
1521 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1523 free(packedpic_buffer);
1528 void QuickSyncEncoderImpl::render_packedslice()
1530 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1531 VABufferID packedslice_para_bufid, packedslice_data_bufid, render_id[2];
1532 unsigned int length_in_bits;
1533 unsigned char *packedslice_buffer = NULL;
1536 length_in_bits = build_packed_slice_buffer(&packedslice_buffer);
1537 packedheader_param_buffer.type = VAEncPackedHeaderSlice;
1538 packedheader_param_buffer.bit_length = length_in_bits;
1539 packedheader_param_buffer.has_emulation_bytes = 0;
1541 va_status = vaCreateBuffer(va_dpy,
1543 VAEncPackedHeaderParameterBufferType,
1544 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1545 &packedslice_para_bufid);
1546 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1548 va_status = vaCreateBuffer(va_dpy,
1550 VAEncPackedHeaderDataBufferType,
1551 (length_in_bits + 7) / 8, 1, packedslice_buffer,
1552 &packedslice_data_bufid);
1553 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1555 render_id[0] = packedslice_para_bufid;
1556 render_id[1] = packedslice_data_bufid;
1557 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1559 free(packedslice_buffer);
1562 int QuickSyncEncoderImpl::render_slice(int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num, int frame_type)
1564 VABufferID slice_param_buf;
1568 update_RefPicList(frame_type);
1570 /* one frame, one slice */
1571 slice_param.macroblock_address = 0;
1572 slice_param.num_macroblocks = frame_width_mbaligned * frame_height_mbaligned/(16*16); /* Measured by MB */
1573 slice_param.slice_type = (frame_type == FRAME_IDR)?2:frame_type;
1574 if (frame_type == FRAME_IDR) {
1575 if (encoding_frame_num != 0)
1576 ++slice_param.idr_pic_id;
1577 } else if (frame_type == FRAME_P) {
1578 int refpiclist0_max = h264_maxref & 0xffff;
1579 memcpy(slice_param.RefPicList0, RefPicList0_P, refpiclist0_max*sizeof(VAPictureH264));
1581 for (i = refpiclist0_max; i < MAX_NUM_REF2; i++) {
1582 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1583 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1585 } else if (frame_type == FRAME_B) {
1586 int refpiclist0_max = h264_maxref & 0xffff;
1587 int refpiclist1_max = (h264_maxref >> 16) & 0xffff;
1589 memcpy(slice_param.RefPicList0, RefPicList0_B, refpiclist0_max*sizeof(VAPictureH264));
1590 for (i = refpiclist0_max; i < MAX_NUM_REF2; i++) {
1591 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1592 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1595 memcpy(slice_param.RefPicList1, RefPicList1_B, refpiclist1_max*sizeof(VAPictureH264));
1596 for (i = refpiclist1_max; i < MAX_NUM_REF2; i++) {
1597 slice_param.RefPicList1[i].picture_id = VA_INVALID_SURFACE;
1598 slice_param.RefPicList1[i].flags = VA_PICTURE_H264_INVALID;
1602 slice_param.slice_alpha_c0_offset_div2 = 0;
1603 slice_param.slice_beta_offset_div2 = 0;
1604 slice_param.direct_spatial_mv_pred_flag = 1;
1605 slice_param.pic_order_cnt_lsb = (display_frame_num - gop_start_display_frame_num) % MaxPicOrderCntLsb;
1608 if (h264_packedheader &&
1609 config_attrib[enc_packed_header_idx].value & VA_ENC_PACKED_HEADER_SLICE)
1610 render_packedslice();
1612 va_status = vaCreateBuffer(va_dpy, context_id, VAEncSliceParameterBufferType,
1613 sizeof(slice_param), 1, &slice_param, &slice_param_buf);
1614 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1616 render_picture_and_delete(va_dpy, context_id, &slice_param_buf, 1);
1623 void QuickSyncEncoderImpl::save_codeddata(storage_task task)
1625 VACodedBufferSegment *buf_list = NULL;
1630 va_status = vaMapBuffer(va_dpy, gl_surfaces[task.display_order % SURFACE_NUM].coded_buf, (void **)(&buf_list));
1631 CHECK_VASTATUS(va_status, "vaMapBuffer");
1632 while (buf_list != NULL) {
1633 data.append(reinterpret_cast<const char *>(buf_list->buf), buf_list->size);
1634 buf_list = (VACodedBufferSegment *) buf_list->next;
1636 vaUnmapBuffer(va_dpy, gl_surfaces[task.display_order % SURFACE_NUM].coded_buf);
1638 static int frameno = 0;
1639 print_latency("Current QuickSync latency (video inputs → disk mux):",
1640 task.received_ts, (task.frame_type == FRAME_B), &frameno);
1645 memset(&pkt, 0, sizeof(pkt));
1647 pkt.data = reinterpret_cast<uint8_t *>(&data[0]);
1648 pkt.size = data.size();
1649 pkt.stream_index = 0;
1650 if (task.frame_type == FRAME_IDR) {
1651 pkt.flags = AV_PKT_FLAG_KEY;
1655 pkt.duration = task.duration;
1657 file_mux->add_packet(pkt, task.pts + global_delay(), task.dts + global_delay());
1659 if (!global_flags.uncompressed_video_to_http &&
1660 !global_flags.x264_video_to_http) {
1661 stream_mux->add_packet(pkt, task.pts + global_delay(), task.dts + global_delay());
1667 // this is weird. but it seems to put a new frame onto the queue
1668 void QuickSyncEncoderImpl::storage_task_enqueue(storage_task task)
1670 unique_lock<mutex> lock(storage_task_queue_mutex);
1671 storage_task_queue.push(move(task));
1672 storage_task_queue_changed.notify_all();
1675 void QuickSyncEncoderImpl::storage_task_thread()
1678 storage_task current;
1680 // wait until there's an encoded frame
1681 unique_lock<mutex> lock(storage_task_queue_mutex);
1682 storage_task_queue_changed.wait(lock, [this]{ return storage_thread_should_quit || !storage_task_queue.empty(); });
1683 if (storage_thread_should_quit && storage_task_queue.empty()) return;
1684 current = move(storage_task_queue.front());
1685 storage_task_queue.pop();
1690 // waits for data, then saves it to disk.
1691 va_status = vaSyncSurface(va_dpy, gl_surfaces[current.display_order % SURFACE_NUM].src_surface);
1692 CHECK_VASTATUS(va_status, "vaSyncSurface");
1693 save_codeddata(move(current));
1696 unique_lock<mutex> lock(storage_task_queue_mutex);
1697 srcsurface_status[current.display_order % SURFACE_NUM] = SRC_SURFACE_FREE;
1698 storage_task_queue_changed.notify_all();
1703 void QuickSyncEncoderImpl::release_encode()
1705 for (unsigned i = 0; i < SURFACE_NUM; i++) {
1706 vaDestroyBuffer(va_dpy, gl_surfaces[i].coded_buf);
1707 vaDestroySurfaces(va_dpy, &gl_surfaces[i].src_surface, 1);
1708 vaDestroySurfaces(va_dpy, &gl_surfaces[i].ref_surface, 1);
1711 vaDestroyContext(va_dpy, context_id);
1712 vaDestroyConfig(va_dpy, config_id);
1715 void QuickSyncEncoderImpl::release_gl_resources()
1717 assert(is_shutdown);
1718 if (has_released_gl_resources) {
1722 for (unsigned i = 0; i < SURFACE_NUM; i++) {
1723 if (!use_zerocopy) {
1724 glBindBuffer(GL_PIXEL_PACK_BUFFER, gl_surfaces[i].pbo);
1725 glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
1726 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1727 glDeleteBuffers(1, &gl_surfaces[i].pbo);
1729 resource_pool->release_2d_texture(gl_surfaces[i].y_tex);
1730 resource_pool->release_2d_texture(gl_surfaces[i].cbcr_tex);
1733 has_released_gl_resources = true;
1736 int QuickSyncEncoderImpl::deinit_va()
1738 vaTerminate(va_dpy);
1740 va_close_display(va_dpy);
1745 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)
1746 : 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)
1748 file_audio_encoder.reset(new AudioEncoder(AUDIO_OUTPUT_CODEC_NAME, DEFAULT_AUDIO_OUTPUT_BIT_RATE, oformat));
1749 open_output_file(filename);
1750 file_audio_encoder->add_mux(file_mux.get());
1752 frame_width_mbaligned = (frame_width + 15) & (~15);
1753 frame_height_mbaligned = (frame_height + 15) & (~15);
1757 if (global_flags.uncompressed_video_to_http ||
1758 global_flags.x264_video_to_http) {
1759 reorderer.reset(new FrameReorderer(ip_period - 1, frame_width, frame_height));
1761 if (global_flags.x264_video_to_http) {
1762 assert(x264_encoder != nullptr);
1764 assert(x264_encoder == nullptr);
1767 init_va(va_display);
1770 // No frames are ready yet.
1771 memset(srcsurface_status, SRC_SURFACE_FREE, sizeof(srcsurface_status));
1773 memset(&seq_param, 0, sizeof(seq_param));
1774 memset(&pic_param, 0, sizeof(pic_param));
1775 memset(&slice_param, 0, sizeof(slice_param));
1777 storage_thread = thread(&QuickSyncEncoderImpl::storage_task_thread, this);
1779 encode_thread = thread([this]{
1780 //SDL_GL_MakeCurrent(window, context);
1781 QOpenGLContext *context = create_context(this->surface);
1782 eglBindAPI(EGL_OPENGL_API);
1783 if (!make_current(context, this->surface)) {
1784 printf("display=%p surface=%p context=%p curr=%p err=%d\n", eglGetCurrentDisplay(), this->surface, context, eglGetCurrentContext(),
1788 encode_thread_func();
1789 delete_context(context);
1793 QuickSyncEncoderImpl::~QuickSyncEncoderImpl()
1796 release_gl_resources();
1799 bool QuickSyncEncoderImpl::begin_frame(GLuint *y_tex, GLuint *cbcr_tex)
1801 assert(!is_shutdown);
1803 // Wait until this frame slot is done encoding.
1804 unique_lock<mutex> lock(storage_task_queue_mutex);
1805 if (srcsurface_status[current_storage_frame % SURFACE_NUM] != SRC_SURFACE_FREE) {
1806 fprintf(stderr, "Warning: Slot %d (for frame %d) is still encoding, rendering has to wait for H.264 encoder\n",
1807 current_storage_frame % SURFACE_NUM, current_storage_frame);
1809 storage_task_queue_changed.wait(lock, [this]{ return storage_thread_should_quit || (srcsurface_status[current_storage_frame % SURFACE_NUM] == SRC_SURFACE_FREE); });
1810 srcsurface_status[current_storage_frame % SURFACE_NUM] = SRC_SURFACE_IN_ENCODING;
1811 if (storage_thread_should_quit) return false;
1814 //*fbo = fbos[current_storage_frame % SURFACE_NUM];
1815 GLSurface *surf = &gl_surfaces[current_storage_frame % SURFACE_NUM];
1816 *y_tex = surf->y_tex;
1817 *cbcr_tex = surf->cbcr_tex;
1819 VAStatus va_status = vaDeriveImage(va_dpy, surf->src_surface, &surf->surface_image);
1820 CHECK_VASTATUS(va_status, "vaDeriveImage");
1823 VABufferInfo buf_info;
1824 buf_info.mem_type = VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME; // or VA_SURFACE_ATTRIB_MEM_TYPE_KERNEL_DRM?
1825 va_status = vaAcquireBufferHandle(va_dpy, surf->surface_image.buf, &buf_info);
1826 CHECK_VASTATUS(va_status, "vaAcquireBufferHandle");
1829 surf->y_egl_image = EGL_NO_IMAGE_KHR;
1830 EGLint y_attribs[] = {
1831 EGL_WIDTH, frame_width,
1832 EGL_HEIGHT, frame_height,
1833 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('R', '8', ' ', ' '),
1834 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
1835 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[0]),
1836 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[0]),
1840 surf->y_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, y_attribs);
1841 assert(surf->y_egl_image != EGL_NO_IMAGE_KHR);
1843 // Associate Y image to a texture.
1844 glBindTexture(GL_TEXTURE_2D, *y_tex);
1845 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->y_egl_image);
1847 // Create CbCr image.
1848 surf->cbcr_egl_image = EGL_NO_IMAGE_KHR;
1849 EGLint cbcr_attribs[] = {
1850 EGL_WIDTH, frame_width,
1851 EGL_HEIGHT, frame_height,
1852 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('G', 'R', '8', '8'),
1853 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
1854 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[1]),
1855 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[1]),
1859 surf->cbcr_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, cbcr_attribs);
1860 assert(surf->cbcr_egl_image != EGL_NO_IMAGE_KHR);
1862 // Associate CbCr image to a texture.
1863 glBindTexture(GL_TEXTURE_2D, *cbcr_tex);
1864 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->cbcr_egl_image);
1870 void QuickSyncEncoderImpl::add_audio(int64_t pts, vector<float> audio)
1872 assert(!is_shutdown);
1873 file_audio_encoder->encode_audio(audio, pts + global_delay());
1876 RefCountedGLsync QuickSyncEncoderImpl::end_frame(int64_t pts, int64_t duration, const vector<RefCountedFrame> &input_frames)
1878 assert(!is_shutdown);
1880 if (!use_zerocopy) {
1881 GLSurface *surf = &gl_surfaces[current_storage_frame % SURFACE_NUM];
1883 glPixelStorei(GL_PACK_ROW_LENGTH, 0);
1886 glBindBuffer(GL_PIXEL_PACK_BUFFER, surf->pbo);
1889 glBindTexture(GL_TEXTURE_2D, surf->y_tex);
1891 glGetTexImage(GL_TEXTURE_2D, 0, GL_RED, GL_UNSIGNED_BYTE, BUFFER_OFFSET(surf->y_offset));
1894 glBindTexture(GL_TEXTURE_2D, surf->cbcr_tex);
1896 glGetTexImage(GL_TEXTURE_2D, 0, GL_RG, GL_UNSIGNED_BYTE, BUFFER_OFFSET(surf->cbcr_offset));
1899 glBindTexture(GL_TEXTURE_2D, 0);
1901 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1904 glMemoryBarrier(GL_TEXTURE_UPDATE_BARRIER_BIT | GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT);
1908 RefCountedGLsync fence = RefCountedGLsync(GL_SYNC_GPU_COMMANDS_COMPLETE, /*flags=*/0);
1910 glFlush(); // Make the H.264 thread see the fence as soon as possible.
1914 unique_lock<mutex> lock(frame_queue_mutex);
1915 pending_video_frames[current_storage_frame] = PendingFrame{ fence, input_frames, pts, duration };
1916 ++current_storage_frame;
1918 frame_queue_nonempty.notify_all();
1922 void QuickSyncEncoderImpl::shutdown()
1929 unique_lock<mutex> lock(frame_queue_mutex);
1930 encode_thread_should_quit = true;
1931 frame_queue_nonempty.notify_all();
1933 encode_thread.join();
1935 unique_lock<mutex> lock(storage_task_queue_mutex);
1936 storage_thread_should_quit = true;
1937 frame_queue_nonempty.notify_all();
1938 storage_task_queue_changed.notify_all();
1940 storage_thread.join();
1942 // Encode any leftover audio in the queues, and also any delayed frames.
1943 file_audio_encoder->encode_last_audio();
1951 void QuickSyncEncoderImpl::open_output_file(const std::string &filename)
1953 AVFormatContext *avctx = avformat_alloc_context();
1954 avctx->oformat = av_guess_format(NULL, filename.c_str(), NULL);
1955 assert(filename.size() < sizeof(avctx->filename) - 1);
1956 strcpy(avctx->filename, filename.c_str());
1958 string url = "file:" + filename;
1959 int ret = avio_open2(&avctx->pb, url.c_str(), AVIO_FLAG_WRITE, &avctx->interrupt_callback, NULL);
1961 char tmp[AV_ERROR_MAX_STRING_SIZE];
1962 fprintf(stderr, "%s: avio_open2() failed: %s\n", filename.c_str(), av_make_error_string(tmp, sizeof(tmp), ret));
1966 string video_extradata = ""; // FIXME: See other comment about global headers.
1967 AVCodecParametersWithDeleter audio_codecpar = file_audio_encoder->get_codec_parameters();
1968 file_mux.reset(new Mux(avctx, frame_width, frame_height, Mux::CODEC_H264, video_extradata, audio_codecpar.get(), TIMEBASE,
1969 std::bind(&DiskSpaceEstimator::report_write, disk_space_estimator, filename, _1)));
1972 void QuickSyncEncoderImpl::encode_thread_func()
1974 int64_t last_dts = -1;
1975 int gop_start_display_frame_num = 0;
1976 for (int encoding_frame_num = 0; ; ++encoding_frame_num) {
1979 int frame_type, display_frame_num;
1980 encoding2display_order(encoding_frame_num, intra_period, intra_idr_period, ip_period,
1981 &display_frame_num, &frame_type, &pts_lag);
1982 if (frame_type == FRAME_IDR) {
1984 current_frame_num = 0;
1985 gop_start_display_frame_num = display_frame_num;
1989 unique_lock<mutex> lock(frame_queue_mutex);
1990 frame_queue_nonempty.wait(lock, [this, display_frame_num]{
1991 return encode_thread_should_quit || pending_video_frames.count(display_frame_num) != 0;
1993 if (encode_thread_should_quit && pending_video_frames.count(display_frame_num) == 0) {
1994 // We have queued frames that were supposed to be B-frames,
1995 // but will be no P-frame to encode them against. Encode them all
1996 // as P-frames instead. Note that this happens under the mutex,
1997 // but nobody else uses it at this point, since we're shutting down,
1998 // so there's no contention.
1999 encode_remaining_frames_as_p(encoding_frame_num, gop_start_display_frame_num, last_dts);
2002 frame = move(pending_video_frames[display_frame_num]);
2003 pending_video_frames.erase(display_frame_num);
2007 // Determine the dts of this frame.
2009 if (pts_lag == -1) {
2010 assert(last_dts != -1);
2011 dts = last_dts + (TIMEBASE / MAX_FPS);
2013 dts = frame.pts - pts_lag;
2017 encode_frame(frame, encoding_frame_num, display_frame_num, gop_start_display_frame_num, frame_type, frame.pts, dts, frame.duration);
2021 void QuickSyncEncoderImpl::encode_remaining_frames_as_p(int encoding_frame_num, int gop_start_display_frame_num, int64_t last_dts)
2023 if (pending_video_frames.empty()) {
2027 for (auto &pending_frame : pending_video_frames) {
2028 int display_frame_num = pending_frame.first;
2029 assert(display_frame_num > 0);
2030 PendingFrame frame = move(pending_frame.second);
2031 int64_t dts = last_dts + (TIMEBASE / MAX_FPS);
2032 printf("Finalizing encode: Encoding leftover frame %d as P-frame instead of B-frame.\n", display_frame_num);
2033 encode_frame(frame, encoding_frame_num++, display_frame_num, gop_start_display_frame_num, FRAME_P, frame.pts, dts, frame.duration);
2037 if (global_flags.uncompressed_video_to_http ||
2038 global_flags.x264_video_to_http) {
2039 // Add frames left in reorderer.
2040 while (!reorderer->empty()) {
2041 FrameReorderer::Frame output_frame = reorderer->get_first_frame();
2042 if (global_flags.uncompressed_video_to_http) {
2043 add_packet_for_uncompressed_frame(output_frame.pts, output_frame.duration, output_frame.data);
2045 assert(global_flags.x264_video_to_http);
2046 x264_encoder->add_frame(output_frame.pts, output_frame.duration, output_frame.data, output_frame.received_ts);
2052 void QuickSyncEncoderImpl::add_packet_for_uncompressed_frame(int64_t pts, int64_t duration, const uint8_t *data)
2055 memset(&pkt, 0, sizeof(pkt));
2057 pkt.data = const_cast<uint8_t *>(data);
2058 pkt.size = frame_width * frame_height * 2;
2059 pkt.stream_index = 0;
2060 pkt.flags = AV_PKT_FLAG_KEY;
2061 pkt.duration = duration;
2062 stream_mux->add_packet(pkt, pts, pts);
2067 void memcpy_with_pitch(uint8_t *dst, const uint8_t *src, size_t src_width, size_t dst_pitch, size_t height)
2069 if (src_width == dst_pitch) {
2070 memcpy(dst, src, src_width * height);
2072 for (size_t y = 0; y < height; ++y) {
2073 const uint8_t *sptr = src + y * src_width;
2074 uint8_t *dptr = dst + y * dst_pitch;
2075 memcpy(dptr, sptr, src_width);
2082 void QuickSyncEncoderImpl::encode_frame(QuickSyncEncoderImpl::PendingFrame frame, int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num,
2083 int frame_type, int64_t pts, int64_t dts, int64_t duration)
2085 // Wait for the GPU to be done with the frame.
2088 sync_status = glClientWaitSync(frame.fence.get(), 0, 1000000000);
2090 } while (sync_status == GL_TIMEOUT_EXPIRED);
2091 assert(sync_status != GL_WAIT_FAILED);
2093 // Find min and max timestamp of all input frames that have a timestamp.
2094 steady_clock::time_point min_ts = steady_clock::time_point::max(), max_ts = steady_clock::time_point::min();
2095 for (const RefCountedFrame &input_frame : frame.input_frames) {
2096 if (input_frame && input_frame->received_timestamp > steady_clock::time_point::min()) {
2097 min_ts = min(min_ts, input_frame->received_timestamp);
2098 max_ts = max(max_ts, input_frame->received_timestamp);
2101 const ReceivedTimestamps received_ts{ min_ts, max_ts };
2103 // Release back any input frames we needed to render this frame.
2104 frame.input_frames.clear();
2106 GLSurface *surf = &gl_surfaces[display_frame_num % SURFACE_NUM];
2110 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->y_egl_image);
2111 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->cbcr_egl_image);
2112 va_status = vaReleaseBufferHandle(va_dpy, surf->surface_image.buf);
2113 CHECK_VASTATUS(va_status, "vaReleaseBufferHandle");
2115 unsigned char *surface_p = nullptr;
2116 vaMapBuffer(va_dpy, surf->surface_image.buf, (void **)&surface_p);
2118 unsigned char *va_y_ptr = (unsigned char *)surface_p + surf->surface_image.offsets[0];
2119 memcpy_with_pitch(va_y_ptr, surf->y_ptr, frame_width, surf->surface_image.pitches[0], frame_height);
2121 unsigned char *va_cbcr_ptr = (unsigned char *)surface_p + surf->surface_image.offsets[1];
2122 memcpy_with_pitch(va_cbcr_ptr, surf->cbcr_ptr, (frame_width / 2) * sizeof(uint16_t), surf->surface_image.pitches[1], frame_height / 2);
2124 va_status = vaUnmapBuffer(va_dpy, surf->surface_image.buf);
2125 CHECK_VASTATUS(va_status, "vaUnmapBuffer");
2127 if (global_flags.uncompressed_video_to_http ||
2128 global_flags.x264_video_to_http) {
2129 // Add uncompressed video. (Note that pts == dts here.)
2130 // Delay needs to match audio.
2131 FrameReorderer::Frame output_frame = reorderer->reorder_frame(pts + global_delay(), duration, reinterpret_cast<uint8_t *>(surf->y_ptr), received_ts);
2132 if (output_frame.data != nullptr) {
2133 if (global_flags.uncompressed_video_to_http) {
2134 add_packet_for_uncompressed_frame(output_frame.pts, output_frame.duration, output_frame.data);
2136 assert(global_flags.x264_video_to_http);
2137 x264_encoder->add_frame(output_frame.pts, output_frame.duration, output_frame.data, output_frame.received_ts);
2143 static int frameno = 0;
2144 print_latency("Current mixer latency (video inputs → ready for encode):",
2145 received_ts, (frame_type == FRAME_B), &frameno);
2147 va_status = vaDestroyImage(va_dpy, surf->surface_image.image_id);
2148 CHECK_VASTATUS(va_status, "vaDestroyImage");
2150 // Schedule the frame for encoding.
2151 VASurfaceID va_surface = surf->src_surface;
2152 va_status = vaBeginPicture(va_dpy, context_id, va_surface);
2153 CHECK_VASTATUS(va_status, "vaBeginPicture");
2155 if (frame_type == FRAME_IDR) {
2156 // FIXME: If the mux wants global headers, we should not put the
2157 // SPS/PPS before each IDR frame, but rather put it into the
2158 // codec extradata (formatted differently?).
2160 render_picture(frame_type, display_frame_num, gop_start_display_frame_num);
2161 if (h264_packedheader) {
2162 render_packedsequence();
2163 render_packedpicture();
2166 //render_sequence();
2167 render_picture(frame_type, display_frame_num, gop_start_display_frame_num);
2169 render_slice(encoding_frame_num, display_frame_num, gop_start_display_frame_num, frame_type);
2171 va_status = vaEndPicture(va_dpy, context_id);
2172 CHECK_VASTATUS(va_status, "vaEndPicture");
2174 // so now the data is done encoding (well, async job kicked off)...
2175 // we send that to the storage thread
2177 tmp.display_order = display_frame_num;
2178 tmp.frame_type = frame_type;
2181 tmp.duration = duration;
2182 tmp.received_ts = received_ts;
2183 storage_task_enqueue(move(tmp));
2185 update_ReferenceFrames(frame_type);
2189 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)
2190 : impl(new QuickSyncEncoderImpl(filename, resource_pool, surface, va_display, width, height, oformat, x264_encoder, disk_space_estimator)) {}
2192 // Must be defined here because unique_ptr<> destructor needs to know the impl.
2193 QuickSyncEncoder::~QuickSyncEncoder() {}
2195 void QuickSyncEncoder::add_audio(int64_t pts, vector<float> audio)
2197 impl->add_audio(pts, audio);
2200 bool QuickSyncEncoder::begin_frame(GLuint *y_tex, GLuint *cbcr_tex)
2202 return impl->begin_frame(y_tex, cbcr_tex);
2205 RefCountedGLsync QuickSyncEncoder::end_frame(int64_t pts, int64_t duration, const vector<RefCountedFrame> &input_frames)
2207 return impl->end_frame(pts, duration, input_frames);
2210 void QuickSyncEncoder::shutdown()
2215 void QuickSyncEncoder::set_stream_mux(Mux *mux)
2217 impl->set_stream_mux(mux);
2220 int64_t QuickSyncEncoder::global_delay() const {
2221 return impl->global_delay();