2 #include "quicksync_encoder.h"
4 #include <movit/resource_pool.h>
5 #include <movit/util.h>
6 #include <EGL/eglplatform.h>
10 #include <epoxy/egl.h>
11 #include <libdrm/drm_fourcc.h>
17 #include <va/va_drm.h>
18 #include <va/va_drmcommon.h>
19 #include <va/va_enc_h264.h>
20 #include <va/va_x11.h>
22 #include <condition_variable>
32 #include "audio_encoder.h"
38 #include "x264_encoder.h"
45 #define CHECK_VASTATUS(va_status, func) \
46 if (va_status != VA_STATUS_SUCCESS) { \
47 fprintf(stderr, "%s:%d (%s) failed with %d\n", __func__, __LINE__, func, va_status); \
51 #define BUFFER_OFFSET(i) ((char *)NULL + (i))
53 //#include "loadsurface.h"
55 #define NAL_REF_IDC_NONE 0
56 #define NAL_REF_IDC_LOW 1
57 #define NAL_REF_IDC_MEDIUM 2
58 #define NAL_REF_IDC_HIGH 3
66 #define SLICE_TYPE_P 0
67 #define SLICE_TYPE_B 1
68 #define SLICE_TYPE_I 2
69 #define IS_P_SLICE(type) (SLICE_TYPE_P == (type))
70 #define IS_B_SLICE(type) (SLICE_TYPE_B == (type))
71 #define IS_I_SLICE(type) (SLICE_TYPE_I == (type))
74 #define ENTROPY_MODE_CAVLC 0
75 #define ENTROPY_MODE_CABAC 1
77 #define PROFILE_IDC_BASELINE 66
78 #define PROFILE_IDC_MAIN 77
79 #define PROFILE_IDC_HIGH 100
81 #define BITSTREAM_ALLOCATE_STEPPING 4096
82 #define SURFACE_NUM 16 /* 16 surfaces for source YUV */
83 #define MAX_NUM_REF1 16 // Seemingly a hardware-fixed value, not related to SURFACE_NUM
84 #define MAX_NUM_REF2 32 // Seemingly a hardware-fixed value, not related to SURFACE_NUM
86 static constexpr unsigned int MaxFrameNum = (2<<16);
87 static constexpr unsigned int MaxPicOrderCntLsb = (2<<8);
88 static constexpr unsigned int Log2MaxFrameNum = 16;
89 static constexpr unsigned int Log2MaxPicOrderCntLsb = 8;
90 static constexpr int rc_default_modes[] = { // Priority list of modes.
93 VA_RC_VBR_CONSTRAINED,
99 /* thread to save coded data */
100 #define SRC_SURFACE_FREE 0
101 #define SRC_SURFACE_IN_ENCODING 1
104 unsigned int *buffer;
106 int max_size_in_dword;
108 typedef struct __bitstream bitstream;
112 // H.264 video comes out in encoding order (e.g. with two B-frames:
113 // 0, 3, 1, 2, 6, 4, 5, etc.), but uncompressed video needs to
114 // come in the right order. Since we do everything, including waiting
115 // for the frames to come out of OpenGL, in encoding order, we need
116 // a reordering buffer for uncompressed frames so that they come out
117 // correctly. We go the super-lazy way of not making it understand
118 // anything about the true order (which introduces some extra latency,
119 // though); we know that for N B-frames we need at most (N-1) frames
120 // in the reorder buffer, and can just sort on that.
122 // The class also deals with keeping a freelist as needed.
123 class FrameReorderer {
125 FrameReorderer(unsigned queue_length, int width, int height);
128 int64_t pts, duration;
131 // Invert to get the smallest pts first.
132 bool operator< (const Frame &other) const { return pts > other.pts; }
135 // Returns the next frame to insert with its pts, if any. Otherwise -1 and nullptr.
136 // Does _not_ take ownership of data; a copy is taken if needed.
137 // The returned pointer is valid until the next call to reorder_frame, or destruction.
138 // As a special case, if queue_length == 0, will just return pts and data (no reordering needed).
139 Frame reorder_frame(int64_t pts, int64_t duration, uint8_t *data);
141 // The same as reorder_frame, but without inserting anything. Used to empty the queue.
142 Frame get_first_frame();
144 bool empty() const { return frames.empty(); }
147 unsigned queue_length;
150 priority_queue<Frame> frames;
151 stack<uint8_t *> freelist; // Includes the last value returned from reorder_frame.
153 // Owns all the pointers. Normally, freelist and frames could do this themselves,
154 // except priority_queue doesn't work well with movable-only types.
155 vector<unique_ptr<uint8_t[]>> owner;
158 FrameReorderer::FrameReorderer(unsigned queue_length, int width, int height)
159 : queue_length(queue_length), width(width), height(height)
161 for (unsigned i = 0; i < queue_length; ++i) {
162 owner.emplace_back(new uint8_t[width * height * 2]);
163 freelist.push(owner.back().get());
167 FrameReorderer::Frame FrameReorderer::reorder_frame(int64_t pts, int64_t duration, uint8_t *data)
169 if (queue_length == 0) {
170 return Frame{pts, duration, data};
173 assert(!freelist.empty());
174 uint8_t *storage = freelist.top();
176 memcpy(storage, data, width * height * 2);
177 frames.push(Frame{pts, duration, storage});
179 if (frames.size() >= queue_length) {
180 return get_first_frame();
182 return Frame{-1, -1, nullptr};
186 FrameReorderer::Frame FrameReorderer::get_first_frame()
188 assert(!frames.empty());
189 Frame storage = frames.top();
191 freelist.push(storage.data);
195 class QuickSyncEncoderImpl {
197 QuickSyncEncoderImpl(const std::string &filename, movit::ResourcePool *resource_pool, QSurface *surface, const string &va_display, int width, int height, AVOutputFormat *oformat, AudioEncoder *stream_audio_encoder, X264Encoder *x264_encoder);
198 ~QuickSyncEncoderImpl();
199 void add_audio(int64_t pts, vector<float> audio);
200 bool begin_frame(GLuint *y_tex, GLuint *cbcr_tex);
201 RefCountedGLsync end_frame(int64_t pts, int64_t duration, const vector<RefCountedFrame> &input_frames);
203 void release_gl_resources();
204 void set_stream_mux(Mux *mux)
210 struct storage_task {
211 unsigned long long display_order;
214 int64_t pts, dts, duration;
216 struct PendingFrame {
217 RefCountedGLsync fence;
218 vector<RefCountedFrame> input_frames;
219 int64_t pts, duration;
222 // So we never get negative dts.
223 int64_t global_delay() const {
224 return int64_t(ip_period - 1) * (TIMEBASE / MAX_FPS);
227 void open_output_file(const std::string &filename);
228 void encode_thread_func();
229 void encode_remaining_frames_as_p(int encoding_frame_num, int gop_start_display_frame_num, int64_t last_dts);
230 void add_packet_for_uncompressed_frame(int64_t pts, int64_t duration, const uint8_t *data);
231 void encode_frame(PendingFrame frame, int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num,
232 int frame_type, int64_t pts, int64_t dts, int64_t duration);
233 void storage_task_thread();
234 void encode_remaining_audio();
235 void storage_task_enqueue(storage_task task);
236 void save_codeddata(storage_task task);
237 int render_packedsequence();
238 int render_packedpicture();
239 void render_packedslice();
240 int render_sequence();
241 int render_picture(int frame_type, int display_frame_num, int gop_start_display_frame_num);
242 void sps_rbsp(bitstream *bs);
243 void pps_rbsp(bitstream *bs);
244 int build_packed_pic_buffer(unsigned char **header_buffer);
245 int render_slice(int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num, int frame_type);
246 void slice_header(bitstream *bs);
247 int build_packed_seq_buffer(unsigned char **header_buffer);
248 int build_packed_slice_buffer(unsigned char **header_buffer);
249 int init_va(const string &va_display);
251 void enable_zerocopy_if_possible();
252 VADisplay va_open_display(const string &va_display);
253 void va_close_display(VADisplay va_dpy);
255 void release_encode();
256 void update_ReferenceFrames(int frame_type);
257 int update_RefPicList(int frame_type);
259 bool is_shutdown = false;
260 bool has_released_gl_resources = false;
264 thread encode_thread, storage_thread;
266 mutex storage_task_queue_mutex;
267 condition_variable storage_task_queue_changed;
268 int srcsurface_status[SURFACE_NUM]; // protected by storage_task_queue_mutex
269 queue<storage_task> storage_task_queue; // protected by storage_task_queue_mutex
270 bool storage_thread_should_quit = false; // protected by storage_task_queue_mutex
272 mutex frame_queue_mutex;
273 condition_variable frame_queue_nonempty;
274 bool encode_thread_should_quit = false; // under frame_queue_mutex
276 int current_storage_frame;
278 map<int, PendingFrame> pending_video_frames; // under frame_queue_mutex
279 map<int64_t, vector<float>> pending_audio_frames; // under frame_queue_mutex
280 movit::ResourcePool *resource_pool;
283 unique_ptr<AudioEncoder> file_audio_encoder;
284 AudioEncoder *stream_audio_encoder;
286 unique_ptr<FrameReorderer> reorderer;
287 X264Encoder *x264_encoder; // nullptr if not using x264.
289 Mux* stream_mux = nullptr; // To HTTP.
290 unique_ptr<Mux> file_mux; // To local disk.
292 Display *x11_display = nullptr;
294 // Encoder parameters
296 VAProfile h264_profile = (VAProfile)~0;
297 VAConfigAttrib config_attrib[VAConfigAttribTypeMax];
298 int config_attrib_num = 0, enc_packed_header_idx;
301 VASurfaceID src_surface, ref_surface;
302 VABufferID coded_buf;
304 VAImage surface_image;
305 GLuint y_tex, cbcr_tex;
307 // Only if use_zerocopy == true.
308 EGLImage y_egl_image, cbcr_egl_image;
310 // Only if use_zerocopy == false.
312 uint8_t *y_ptr, *cbcr_ptr;
313 size_t y_offset, cbcr_offset;
315 GLSurface gl_surfaces[SURFACE_NUM];
317 VAConfigID config_id;
318 VAContextID context_id;
319 VAEncSequenceParameterBufferH264 seq_param;
320 VAEncPictureParameterBufferH264 pic_param;
321 VAEncSliceParameterBufferH264 slice_param;
322 VAPictureH264 CurrentCurrPic;
323 VAPictureH264 ReferenceFrames[MAX_NUM_REF1], RefPicList0_P[MAX_NUM_REF2], RefPicList0_B[MAX_NUM_REF2], RefPicList1_B[MAX_NUM_REF2];
325 // Static quality settings.
326 static constexpr unsigned int frame_bitrate = 15000000 / 60; // Doesn't really matter; only initial_qp does.
327 static constexpr unsigned int num_ref_frames = 2;
328 static constexpr int initial_qp = 15;
329 static constexpr int minimal_qp = 0;
330 static constexpr int intra_period = 30;
331 static constexpr int intra_idr_period = MAX_FPS; // About a second; more at lower frame rates. Not ideal.
333 // Quality settings that are meant to be static, but might be overridden
335 int constraint_set_flag = 0;
336 int h264_packedheader = 0; /* support pack header? */
337 int h264_maxref = (1<<16|1);
338 int h264_entropy_mode = 1; /* cabac */
342 unsigned int current_frame_num = 0;
343 unsigned int numShortTerm = 0;
347 int frame_width_mbaligned;
348 int frame_height_mbaligned;
351 // Supposedly vaRenderPicture() is supposed to destroy the buffer implicitly,
352 // but if we don't delete it here, we get leaks. The GStreamer implementation
354 static void render_picture_and_delete(VADisplay dpy, VAContextID context, VABufferID *buffers, int num_buffers)
356 VAStatus va_status = vaRenderPicture(dpy, context, buffers, num_buffers);
357 CHECK_VASTATUS(va_status, "vaRenderPicture");
359 for (int i = 0; i < num_buffers; ++i) {
360 va_status = vaDestroyBuffer(dpy, buffers[i]);
361 CHECK_VASTATUS(va_status, "vaDestroyBuffer");
366 va_swap32(unsigned int val)
368 unsigned char *pval = (unsigned char *)&val;
370 return ((pval[0] << 24) |
377 bitstream_start(bitstream *bs)
379 bs->max_size_in_dword = BITSTREAM_ALLOCATE_STEPPING;
380 bs->buffer = (unsigned int *)calloc(bs->max_size_in_dword * sizeof(int), 1);
385 bitstream_end(bitstream *bs)
387 int pos = (bs->bit_offset >> 5);
388 int bit_offset = (bs->bit_offset & 0x1f);
389 int bit_left = 32 - bit_offset;
392 bs->buffer[pos] = va_swap32((bs->buffer[pos] << bit_left));
397 bitstream_put_ui(bitstream *bs, unsigned int val, int size_in_bits)
399 int pos = (bs->bit_offset >> 5);
400 int bit_offset = (bs->bit_offset & 0x1f);
401 int bit_left = 32 - bit_offset;
406 bs->bit_offset += size_in_bits;
408 if (bit_left > size_in_bits) {
409 bs->buffer[pos] = (bs->buffer[pos] << size_in_bits | val);
411 size_in_bits -= bit_left;
412 if (bit_left >= 32) {
413 bs->buffer[pos] = (val >> size_in_bits);
415 bs->buffer[pos] = (bs->buffer[pos] << bit_left) | (val >> size_in_bits);
417 bs->buffer[pos] = va_swap32(bs->buffer[pos]);
419 if (pos + 1 == bs->max_size_in_dword) {
420 bs->max_size_in_dword += BITSTREAM_ALLOCATE_STEPPING;
421 bs->buffer = (unsigned int *)realloc(bs->buffer, bs->max_size_in_dword * sizeof(unsigned int));
424 bs->buffer[pos + 1] = val;
429 bitstream_put_ue(bitstream *bs, unsigned int val)
431 int size_in_bits = 0;
439 bitstream_put_ui(bs, 0, size_in_bits - 1); // leading zero
440 bitstream_put_ui(bs, val, size_in_bits);
444 bitstream_put_se(bitstream *bs, int val)
446 unsigned int new_val;
451 new_val = 2 * val - 1;
453 bitstream_put_ue(bs, new_val);
457 bitstream_byte_aligning(bitstream *bs, int bit)
459 int bit_offset = (bs->bit_offset & 0x7);
460 int bit_left = 8 - bit_offset;
466 assert(bit == 0 || bit == 1);
469 new_val = (1 << bit_left) - 1;
473 bitstream_put_ui(bs, new_val, bit_left);
477 rbsp_trailing_bits(bitstream *bs)
479 bitstream_put_ui(bs, 1, 1);
480 bitstream_byte_aligning(bs, 0);
483 static void nal_start_code_prefix(bitstream *bs)
485 bitstream_put_ui(bs, 0x00000001, 32);
488 static void nal_header(bitstream *bs, int nal_ref_idc, int nal_unit_type)
490 bitstream_put_ui(bs, 0, 1); /* forbidden_zero_bit: 0 */
491 bitstream_put_ui(bs, nal_ref_idc, 2);
492 bitstream_put_ui(bs, nal_unit_type, 5);
495 void QuickSyncEncoderImpl::sps_rbsp(bitstream *bs)
497 int profile_idc = PROFILE_IDC_BASELINE;
499 if (h264_profile == VAProfileH264High)
500 profile_idc = PROFILE_IDC_HIGH;
501 else if (h264_profile == VAProfileH264Main)
502 profile_idc = PROFILE_IDC_MAIN;
504 bitstream_put_ui(bs, profile_idc, 8); /* profile_idc */
505 bitstream_put_ui(bs, !!(constraint_set_flag & 1), 1); /* constraint_set0_flag */
506 bitstream_put_ui(bs, !!(constraint_set_flag & 2), 1); /* constraint_set1_flag */
507 bitstream_put_ui(bs, !!(constraint_set_flag & 4), 1); /* constraint_set2_flag */
508 bitstream_put_ui(bs, !!(constraint_set_flag & 8), 1); /* constraint_set3_flag */
509 bitstream_put_ui(bs, 0, 4); /* reserved_zero_4bits */
510 bitstream_put_ui(bs, seq_param.level_idc, 8); /* level_idc */
511 bitstream_put_ue(bs, seq_param.seq_parameter_set_id); /* seq_parameter_set_id */
513 if ( profile_idc == PROFILE_IDC_HIGH) {
514 bitstream_put_ue(bs, 1); /* chroma_format_idc = 1, 4:2:0 */
515 bitstream_put_ue(bs, 0); /* bit_depth_luma_minus8 */
516 bitstream_put_ue(bs, 0); /* bit_depth_chroma_minus8 */
517 bitstream_put_ui(bs, 0, 1); /* qpprime_y_zero_transform_bypass_flag */
518 bitstream_put_ui(bs, 0, 1); /* seq_scaling_matrix_present_flag */
521 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_frame_num_minus4); /* log2_max_frame_num_minus4 */
522 bitstream_put_ue(bs, seq_param.seq_fields.bits.pic_order_cnt_type); /* pic_order_cnt_type */
524 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0)
525 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4); /* log2_max_pic_order_cnt_lsb_minus4 */
530 bitstream_put_ue(bs, seq_param.max_num_ref_frames); /* num_ref_frames */
531 bitstream_put_ui(bs, 0, 1); /* gaps_in_frame_num_value_allowed_flag */
533 bitstream_put_ue(bs, seq_param.picture_width_in_mbs - 1); /* pic_width_in_mbs_minus1 */
534 bitstream_put_ue(bs, seq_param.picture_height_in_mbs - 1); /* pic_height_in_map_units_minus1 */
535 bitstream_put_ui(bs, seq_param.seq_fields.bits.frame_mbs_only_flag, 1); /* frame_mbs_only_flag */
537 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
541 bitstream_put_ui(bs, seq_param.seq_fields.bits.direct_8x8_inference_flag, 1); /* direct_8x8_inference_flag */
542 bitstream_put_ui(bs, seq_param.frame_cropping_flag, 1); /* frame_cropping_flag */
544 if (seq_param.frame_cropping_flag) {
545 bitstream_put_ue(bs, seq_param.frame_crop_left_offset); /* frame_crop_left_offset */
546 bitstream_put_ue(bs, seq_param.frame_crop_right_offset); /* frame_crop_right_offset */
547 bitstream_put_ue(bs, seq_param.frame_crop_top_offset); /* frame_crop_top_offset */
548 bitstream_put_ue(bs, seq_param.frame_crop_bottom_offset); /* frame_crop_bottom_offset */
551 //if ( frame_bit_rate < 0 ) { //TODO EW: the vui header isn't correct
553 bitstream_put_ui(bs, 0, 1); /* vui_parameters_present_flag */
555 bitstream_put_ui(bs, 1, 1); /* vui_parameters_present_flag */
556 bitstream_put_ui(bs, 0, 1); /* aspect_ratio_info_present_flag */
557 bitstream_put_ui(bs, 0, 1); /* overscan_info_present_flag */
558 bitstream_put_ui(bs, 1, 1); /* video_signal_type_present_flag */
560 bitstream_put_ui(bs, 5, 3); /* video_format (5 = Unspecified) */
561 bitstream_put_ui(bs, 0, 1); /* video_full_range_flag */
562 bitstream_put_ui(bs, 1, 1); /* colour_description_present_flag */
564 bitstream_put_ui(bs, 1, 8); /* colour_primaries (1 = BT.709) */
565 bitstream_put_ui(bs, 2, 8); /* transfer_characteristics (2 = unspecified, since we use sRGB) */
566 bitstream_put_ui(bs, 6, 8); /* matrix_coefficients (6 = BT.601/SMPTE 170M) */
569 bitstream_put_ui(bs, 0, 1); /* chroma_loc_info_present_flag */
570 bitstream_put_ui(bs, 1, 1); /* timing_info_present_flag */
572 bitstream_put_ui(bs, 1, 32); // FPS
573 bitstream_put_ui(bs, TIMEBASE * 2, 32); // FPS
574 bitstream_put_ui(bs, 1, 1);
576 bitstream_put_ui(bs, 1, 1); /* nal_hrd_parameters_present_flag */
579 bitstream_put_ue(bs, 0); /* cpb_cnt_minus1 */
580 bitstream_put_ui(bs, 4, 4); /* bit_rate_scale */
581 bitstream_put_ui(bs, 6, 4); /* cpb_size_scale */
583 bitstream_put_ue(bs, frame_bitrate - 1); /* bit_rate_value_minus1[0] */
584 bitstream_put_ue(bs, frame_bitrate*8 - 1); /* cpb_size_value_minus1[0] */
585 bitstream_put_ui(bs, 1, 1); /* cbr_flag[0] */
587 bitstream_put_ui(bs, 23, 5); /* initial_cpb_removal_delay_length_minus1 */
588 bitstream_put_ui(bs, 23, 5); /* cpb_removal_delay_length_minus1 */
589 bitstream_put_ui(bs, 23, 5); /* dpb_output_delay_length_minus1 */
590 bitstream_put_ui(bs, 23, 5); /* time_offset_length */
592 bitstream_put_ui(bs, 0, 1); /* vcl_hrd_parameters_present_flag */
593 bitstream_put_ui(bs, 0, 1); /* low_delay_hrd_flag */
595 bitstream_put_ui(bs, 0, 1); /* pic_struct_present_flag */
596 bitstream_put_ui(bs, 0, 1); /* bitstream_restriction_flag */
599 rbsp_trailing_bits(bs); /* rbsp_trailing_bits */
603 void QuickSyncEncoderImpl::pps_rbsp(bitstream *bs)
605 bitstream_put_ue(bs, pic_param.pic_parameter_set_id); /* pic_parameter_set_id */
606 bitstream_put_ue(bs, pic_param.seq_parameter_set_id); /* seq_parameter_set_id */
608 bitstream_put_ui(bs, pic_param.pic_fields.bits.entropy_coding_mode_flag, 1); /* entropy_coding_mode_flag */
610 bitstream_put_ui(bs, 0, 1); /* pic_order_present_flag: 0 */
612 bitstream_put_ue(bs, 0); /* num_slice_groups_minus1 */
614 bitstream_put_ue(bs, pic_param.num_ref_idx_l0_active_minus1); /* num_ref_idx_l0_active_minus1 */
615 bitstream_put_ue(bs, pic_param.num_ref_idx_l1_active_minus1); /* num_ref_idx_l1_active_minus1 1 */
617 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_pred_flag, 1); /* weighted_pred_flag: 0 */
618 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_bipred_idc, 2); /* weighted_bipred_idc: 0 */
620 bitstream_put_se(bs, pic_param.pic_init_qp - 26); /* pic_init_qp_minus26 */
621 bitstream_put_se(bs, 0); /* pic_init_qs_minus26 */
622 bitstream_put_se(bs, 0); /* chroma_qp_index_offset */
624 bitstream_put_ui(bs, pic_param.pic_fields.bits.deblocking_filter_control_present_flag, 1); /* deblocking_filter_control_present_flag */
625 bitstream_put_ui(bs, 0, 1); /* constrained_intra_pred_flag */
626 bitstream_put_ui(bs, 0, 1); /* redundant_pic_cnt_present_flag */
629 bitstream_put_ui(bs, pic_param.pic_fields.bits.transform_8x8_mode_flag, 1); /*transform_8x8_mode_flag */
630 bitstream_put_ui(bs, 0, 1); /* pic_scaling_matrix_present_flag */
631 bitstream_put_se(bs, pic_param.second_chroma_qp_index_offset ); /*second_chroma_qp_index_offset */
633 rbsp_trailing_bits(bs);
636 void QuickSyncEncoderImpl::slice_header(bitstream *bs)
638 int first_mb_in_slice = slice_param.macroblock_address;
640 bitstream_put_ue(bs, first_mb_in_slice); /* first_mb_in_slice: 0 */
641 bitstream_put_ue(bs, slice_param.slice_type); /* slice_type */
642 bitstream_put_ue(bs, slice_param.pic_parameter_set_id); /* pic_parameter_set_id: 0 */
643 bitstream_put_ui(bs, pic_param.frame_num, seq_param.seq_fields.bits.log2_max_frame_num_minus4 + 4); /* frame_num */
645 /* frame_mbs_only_flag == 1 */
646 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
651 if (pic_param.pic_fields.bits.idr_pic_flag)
652 bitstream_put_ue(bs, slice_param.idr_pic_id); /* idr_pic_id: 0 */
654 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0) {
655 bitstream_put_ui(bs, pic_param.CurrPic.TopFieldOrderCnt, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 + 4);
656 /* pic_order_present_flag == 0 */
662 /* redundant_pic_cnt_present_flag == 0 */
664 if (IS_P_SLICE(slice_param.slice_type)) {
665 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
667 if (slice_param.num_ref_idx_active_override_flag)
668 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
670 /* ref_pic_list_reordering */
671 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
672 } else if (IS_B_SLICE(slice_param.slice_type)) {
673 bitstream_put_ui(bs, slice_param.direct_spatial_mv_pred_flag, 1); /* direct_spatial_mv_pred: 1 */
675 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
677 if (slice_param.num_ref_idx_active_override_flag) {
678 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
679 bitstream_put_ue(bs, slice_param.num_ref_idx_l1_active_minus1);
682 /* ref_pic_list_reordering */
683 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
684 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l1: 0 */
687 if ((pic_param.pic_fields.bits.weighted_pred_flag &&
688 IS_P_SLICE(slice_param.slice_type)) ||
689 ((pic_param.pic_fields.bits.weighted_bipred_idc == 1) &&
690 IS_B_SLICE(slice_param.slice_type))) {
691 /* FIXME: fill weight/offset table */
695 /* dec_ref_pic_marking */
696 if (pic_param.pic_fields.bits.reference_pic_flag) { /* nal_ref_idc != 0 */
697 unsigned char no_output_of_prior_pics_flag = 0;
698 unsigned char long_term_reference_flag = 0;
699 unsigned char adaptive_ref_pic_marking_mode_flag = 0;
701 if (pic_param.pic_fields.bits.idr_pic_flag) {
702 bitstream_put_ui(bs, no_output_of_prior_pics_flag, 1); /* no_output_of_prior_pics_flag: 0 */
703 bitstream_put_ui(bs, long_term_reference_flag, 1); /* long_term_reference_flag: 0 */
705 bitstream_put_ui(bs, adaptive_ref_pic_marking_mode_flag, 1); /* adaptive_ref_pic_marking_mode_flag: 0 */
709 if (pic_param.pic_fields.bits.entropy_coding_mode_flag &&
710 !IS_I_SLICE(slice_param.slice_type))
711 bitstream_put_ue(bs, slice_param.cabac_init_idc); /* cabac_init_idc: 0 */
713 bitstream_put_se(bs, slice_param.slice_qp_delta); /* slice_qp_delta: 0 */
715 /* ignore for SP/SI */
717 if (pic_param.pic_fields.bits.deblocking_filter_control_present_flag) {
718 bitstream_put_ue(bs, slice_param.disable_deblocking_filter_idc); /* disable_deblocking_filter_idc: 0 */
720 if (slice_param.disable_deblocking_filter_idc != 1) {
721 bitstream_put_se(bs, slice_param.slice_alpha_c0_offset_div2); /* slice_alpha_c0_offset_div2: 2 */
722 bitstream_put_se(bs, slice_param.slice_beta_offset_div2); /* slice_beta_offset_div2: 2 */
726 if (pic_param.pic_fields.bits.entropy_coding_mode_flag) {
727 bitstream_byte_aligning(bs, 1);
731 int QuickSyncEncoderImpl::build_packed_pic_buffer(unsigned char **header_buffer)
735 bitstream_start(&bs);
736 nal_start_code_prefix(&bs);
737 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_PPS);
741 *header_buffer = (unsigned char *)bs.buffer;
742 return bs.bit_offset;
746 QuickSyncEncoderImpl::build_packed_seq_buffer(unsigned char **header_buffer)
750 bitstream_start(&bs);
751 nal_start_code_prefix(&bs);
752 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_SPS);
756 *header_buffer = (unsigned char *)bs.buffer;
757 return bs.bit_offset;
760 int QuickSyncEncoderImpl::build_packed_slice_buffer(unsigned char **header_buffer)
763 int is_idr = !!pic_param.pic_fields.bits.idr_pic_flag;
764 int is_ref = !!pic_param.pic_fields.bits.reference_pic_flag;
766 bitstream_start(&bs);
767 nal_start_code_prefix(&bs);
769 if (IS_I_SLICE(slice_param.slice_type)) {
770 nal_header(&bs, NAL_REF_IDC_HIGH, is_idr ? NAL_IDR : NAL_NON_IDR);
771 } else if (IS_P_SLICE(slice_param.slice_type)) {
772 nal_header(&bs, NAL_REF_IDC_MEDIUM, NAL_NON_IDR);
774 assert(IS_B_SLICE(slice_param.slice_type));
775 nal_header(&bs, is_ref ? NAL_REF_IDC_LOW : NAL_REF_IDC_NONE, NAL_NON_IDR);
781 *header_buffer = (unsigned char *)bs.buffer;
782 return bs.bit_offset;
787 Assume frame sequence is: Frame#0, #1, #2, ..., #M, ..., #X, ... (encoding order)
788 1) period between Frame #X and Frame #N = #X - #N
789 2) 0 means infinite for intra_period/intra_idr_period, and 0 is invalid for ip_period
790 3) intra_idr_period % intra_period (intra_period > 0) and intra_period % ip_period must be 0
791 4) intra_period and intra_idr_period take precedence over ip_period
792 5) if ip_period > 1, intra_period and intra_idr_period are not the strict periods
793 of I/IDR frames, see bellow examples
794 -------------------------------------------------------------------
795 intra_period intra_idr_period ip_period frame sequence (intra_period/intra_idr_period/ip_period)
796 0 ignored 1 IDRPPPPPPP ... (No IDR/I any more)
797 0 ignored >=2 IDR(PBB)(PBB)... (No IDR/I any more)
798 1 0 ignored IDRIIIIIII... (No IDR any more)
799 1 1 ignored IDR IDR IDR IDR...
800 1 >=2 ignored IDRII IDRII IDR... (1/3/ignore)
801 >=2 0 1 IDRPPP IPPP I... (3/0/1)
802 >=2 0 >=2 IDR(PBB)(PBB)(IBB) (6/0/3)
803 (PBB)(IBB)(PBB)(IBB)...
804 >=2 >=2 1 IDRPPPPP IPPPPP IPPPPP (6/18/1)
805 IDRPPPPP IPPPPP IPPPPP...
806 >=2 >=2 >=2 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)} (6/18/3)
807 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)}...
808 {IDR(PBB)(PBB)(IBB)(PBB)} (6/12/3)
809 {IDR(PBB)(PBB)(IBB)(PBB)}...
810 {IDR(PBB)(PBB)} (6/6/3)
814 // General pts/dts strategy:
816 // Getting pts and dts right with variable frame rate (VFR) and B-frames can be a
817 // bit tricky. We assume first of all that the frame rate never goes _above_
818 // MAX_FPS, which gives us a frame period N. The decoder can always decode
819 // in at least this speed, as long at dts <= pts (the frame is not attempted
820 // presented before it is decoded). Furthermore, we never have longer chains of
821 // B-frames than a fixed constant C. (In a B-frame chain, we say that the base
822 // I/P-frame has order O=0, the B-frame depending on it directly has order O=1,
823 // etc. The last frame in the chain, which no B-frames depend on, is the “tip”
824 // frame, with an order O <= C.)
826 // Many strategies are possible, but we establish these rules:
828 // - Tip frames have dts = pts - (C-O)*N.
829 // - Non-tip frames have dts = dts_last + N.
831 // An example, with C=2 and N=10 and the data flow showed with arrows:
834 // pts: 30 40 50 60 70 80
836 // dts: 10 30 20 60 50←40
841 // To show that this works fine also with irregular spacings, let's say that
842 // the third frame is delayed a bit (something earlier was dropped). Now the
843 // situation looks like this:
846 // pts: 30 40 80 90 100 110
848 // dts: 10 30 20 90 50←40
853 // The resetting on every tip frame makes sure dts never ends up lagging a lot
854 // behind pts, and the subtraction of (C-O)*N makes sure pts <= dts.
856 // In the output of this function, if <dts_lag> is >= 0, it means to reset the
857 // dts from the current pts minus <dts_lag>, while if it's -1, the frame is not
858 // a tip frame and should be given a dts based on the previous one.
863 void encoding2display_order(
864 int encoding_order, int intra_period,
865 int intra_idr_period, int ip_period,
866 int *displaying_order,
867 int *frame_type, int *pts_lag)
869 int encoding_order_gop = 0;
873 if (intra_period == 1) { /* all are I/IDR frames */
874 *displaying_order = encoding_order;
875 if (intra_idr_period == 0)
876 *frame_type = (encoding_order == 0)?FRAME_IDR:FRAME_I;
878 *frame_type = (encoding_order % intra_idr_period == 0)?FRAME_IDR:FRAME_I;
882 if (intra_period == 0)
883 intra_idr_period = 0;
885 if (ip_period == 1) {
886 // No B-frames, sequence is like IDR PPPPP IPPPPP.
887 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % intra_idr_period);
888 *displaying_order = encoding_order;
890 if (encoding_order_gop == 0) { /* the first frame */
891 *frame_type = FRAME_IDR;
892 } else if (intra_period != 0 && /* have I frames */
893 encoding_order_gop >= 2 &&
894 (encoding_order_gop % intra_period == 0)) {
895 *frame_type = FRAME_I;
897 *frame_type = FRAME_P;
902 // We have B-frames. Sequence is like IDR (PBB)(PBB)(IBB)(PBB).
903 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % (intra_idr_period + 1));
904 *pts_lag = -1; // Most frames are not tip frames.
906 if (encoding_order_gop == 0) { /* the first frame */
907 *frame_type = FRAME_IDR;
908 *displaying_order = encoding_order;
909 // IDR frames are a special case; I honestly can't find the logic behind
910 // why this is the right thing, but it seems to line up nicely in practice :-)
911 *pts_lag = TIMEBASE / MAX_FPS;
912 } else if (((encoding_order_gop - 1) % ip_period) != 0) { /* B frames */
913 *frame_type = FRAME_B;
914 *displaying_order = encoding_order - 1;
915 if ((encoding_order_gop % ip_period) == 0) {
916 *pts_lag = 0; // Last B-frame.
918 } else if (intra_period != 0 && /* have I frames */
919 encoding_order_gop >= 2 &&
920 ((encoding_order_gop - 1) / ip_period % (intra_period / ip_period)) == 0) {
921 *frame_type = FRAME_I;
922 *displaying_order = encoding_order + ip_period - 1;
924 *frame_type = FRAME_P;
925 *displaying_order = encoding_order + ip_period - 1;
930 static const char *rc_to_string(int rc_mode)
943 case VA_RC_VBR_CONSTRAINED:
944 return "VBR_CONSTRAINED";
950 void QuickSyncEncoderImpl::enable_zerocopy_if_possible()
952 if (global_flags.uncompressed_video_to_http) {
953 fprintf(stderr, "Disabling zerocopy H.264 encoding due to --http-uncompressed-video.\n");
954 use_zerocopy = false;
955 } else if (global_flags.x264_video_to_http) {
956 fprintf(stderr, "Disabling zerocopy H.264 encoding due to --http-x264-video.\n");
957 use_zerocopy = false;
963 VADisplay QuickSyncEncoderImpl::va_open_display(const string &va_display)
965 if (va_display.empty()) {
966 x11_display = XOpenDisplay(NULL);
968 fprintf(stderr, "error: can't connect to X server!\n");
971 enable_zerocopy_if_possible();
972 return vaGetDisplay(x11_display);
973 } else if (va_display[0] != '/') {
974 x11_display = XOpenDisplay(va_display.c_str());
976 fprintf(stderr, "error: can't connect to X server!\n");
979 enable_zerocopy_if_possible();
980 return vaGetDisplay(x11_display);
982 drm_fd = open(va_display.c_str(), O_RDWR);
984 perror(va_display.c_str());
987 use_zerocopy = false;
988 return vaGetDisplayDRM(drm_fd);
992 void QuickSyncEncoderImpl::va_close_display(VADisplay va_dpy)
995 XCloseDisplay(x11_display);
996 x11_display = nullptr;
1003 int QuickSyncEncoderImpl::init_va(const string &va_display)
1005 VAProfile profile_list[]={VAProfileH264High, VAProfileH264Main, VAProfileH264Baseline, VAProfileH264ConstrainedBaseline};
1006 VAEntrypoint *entrypoints;
1007 int num_entrypoints, slice_entrypoint;
1008 int support_encode = 0;
1009 int major_ver, minor_ver;
1013 va_dpy = va_open_display(va_display);
1014 va_status = vaInitialize(va_dpy, &major_ver, &minor_ver);
1015 CHECK_VASTATUS(va_status, "vaInitialize");
1017 num_entrypoints = vaMaxNumEntrypoints(va_dpy);
1018 entrypoints = (VAEntrypoint *)malloc(num_entrypoints * sizeof(*entrypoints));
1020 fprintf(stderr, "error: failed to initialize VA entrypoints array\n");
1024 /* use the highest profile */
1025 for (i = 0; i < sizeof(profile_list)/sizeof(profile_list[0]); i++) {
1026 if ((h264_profile != ~0) && h264_profile != profile_list[i])
1029 h264_profile = profile_list[i];
1030 vaQueryConfigEntrypoints(va_dpy, h264_profile, entrypoints, &num_entrypoints);
1031 for (slice_entrypoint = 0; slice_entrypoint < num_entrypoints; slice_entrypoint++) {
1032 if (entrypoints[slice_entrypoint] == VAEntrypointEncSlice) {
1037 if (support_encode == 1)
1041 if (support_encode == 0) {
1042 printf("Can't find VAEntrypointEncSlice for H264 profiles. If you are using a non-Intel GPU\n");
1043 printf("but have one in your system, try launching Nageru with --va-display /dev/dri/renderD128\n");
1044 printf("to use VA-API against DRM instead of X11.\n");
1047 switch (h264_profile) {
1048 case VAProfileH264Baseline:
1050 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
1051 h264_entropy_mode = 0;
1053 case VAProfileH264ConstrainedBaseline:
1054 constraint_set_flag |= (1 << 0 | 1 << 1); /* Annex A.2.2 */
1058 case VAProfileH264Main:
1059 constraint_set_flag |= (1 << 1); /* Annex A.2.2 */
1062 case VAProfileH264High:
1063 constraint_set_flag |= (1 << 3); /* Annex A.2.4 */
1066 h264_profile = VAProfileH264Baseline;
1068 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
1073 VAConfigAttrib attrib[VAConfigAttribTypeMax];
1075 /* find out the format for the render target, and rate control mode */
1076 for (i = 0; i < VAConfigAttribTypeMax; i++)
1077 attrib[i].type = (VAConfigAttribType)i;
1079 va_status = vaGetConfigAttributes(va_dpy, h264_profile, VAEntrypointEncSlice,
1080 &attrib[0], VAConfigAttribTypeMax);
1081 CHECK_VASTATUS(va_status, "vaGetConfigAttributes");
1082 /* check the interested configattrib */
1083 if ((attrib[VAConfigAttribRTFormat].value & VA_RT_FORMAT_YUV420) == 0) {
1084 printf("Not find desired YUV420 RT format\n");
1087 config_attrib[config_attrib_num].type = VAConfigAttribRTFormat;
1088 config_attrib[config_attrib_num].value = VA_RT_FORMAT_YUV420;
1089 config_attrib_num++;
1092 if (attrib[VAConfigAttribRateControl].value != VA_ATTRIB_NOT_SUPPORTED) {
1093 int tmp = attrib[VAConfigAttribRateControl].value;
1095 if (rc_mode == -1 || !(rc_mode & tmp)) {
1096 if (rc_mode != -1) {
1097 printf("Warning: Don't support the specified RateControl mode: %s!!!, switch to ", rc_to_string(rc_mode));
1100 for (i = 0; i < sizeof(rc_default_modes) / sizeof(rc_default_modes[0]); i++) {
1101 if (rc_default_modes[i] & tmp) {
1102 rc_mode = rc_default_modes[i];
1108 config_attrib[config_attrib_num].type = VAConfigAttribRateControl;
1109 config_attrib[config_attrib_num].value = rc_mode;
1110 config_attrib_num++;
1114 if (attrib[VAConfigAttribEncPackedHeaders].value != VA_ATTRIB_NOT_SUPPORTED) {
1115 int tmp = attrib[VAConfigAttribEncPackedHeaders].value;
1117 h264_packedheader = 1;
1118 config_attrib[config_attrib_num].type = VAConfigAttribEncPackedHeaders;
1119 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
1121 if (tmp & VA_ENC_PACKED_HEADER_SEQUENCE) {
1122 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SEQUENCE;
1125 if (tmp & VA_ENC_PACKED_HEADER_PICTURE) {
1126 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_PICTURE;
1129 if (tmp & VA_ENC_PACKED_HEADER_SLICE) {
1130 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SLICE;
1133 if (tmp & VA_ENC_PACKED_HEADER_MISC) {
1134 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_MISC;
1137 enc_packed_header_idx = config_attrib_num;
1138 config_attrib_num++;
1141 if (attrib[VAConfigAttribEncInterlaced].value != VA_ATTRIB_NOT_SUPPORTED) {
1142 config_attrib[config_attrib_num].type = VAConfigAttribEncInterlaced;
1143 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
1144 config_attrib_num++;
1147 if (attrib[VAConfigAttribEncMaxRefFrames].value != VA_ATTRIB_NOT_SUPPORTED) {
1148 h264_maxref = attrib[VAConfigAttribEncMaxRefFrames].value;
1155 int QuickSyncEncoderImpl::setup_encode()
1158 VASurfaceID *tmp_surfaceid;
1159 int codedbuf_size, i;
1160 VASurfaceID src_surface[SURFACE_NUM];
1161 VASurfaceID ref_surface[SURFACE_NUM];
1163 va_status = vaCreateConfig(va_dpy, h264_profile, VAEntrypointEncSlice,
1164 &config_attrib[0], config_attrib_num, &config_id);
1165 CHECK_VASTATUS(va_status, "vaCreateConfig");
1167 /* create source surfaces */
1168 va_status = vaCreateSurfaces(va_dpy,
1169 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
1170 &src_surface[0], SURFACE_NUM,
1172 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
1174 /* create reference surfaces */
1175 va_status = vaCreateSurfaces(va_dpy,
1176 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
1177 &ref_surface[0], SURFACE_NUM,
1179 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
1181 tmp_surfaceid = (VASurfaceID *)calloc(2 * SURFACE_NUM, sizeof(VASurfaceID));
1182 memcpy(tmp_surfaceid, src_surface, SURFACE_NUM * sizeof(VASurfaceID));
1183 memcpy(tmp_surfaceid + SURFACE_NUM, ref_surface, SURFACE_NUM * sizeof(VASurfaceID));
1185 /* Create a context for this encode pipe */
1186 va_status = vaCreateContext(va_dpy, config_id,
1187 frame_width_mbaligned, frame_height_mbaligned,
1189 tmp_surfaceid, 2 * SURFACE_NUM,
1191 CHECK_VASTATUS(va_status, "vaCreateContext");
1192 free(tmp_surfaceid);
1194 codedbuf_size = (frame_width_mbaligned * frame_height_mbaligned * 400) / (16*16);
1196 for (i = 0; i < SURFACE_NUM; i++) {
1197 /* create coded buffer once for all
1198 * other VA buffers which won't be used again after vaRenderPicture.
1199 * so APP can always vaCreateBuffer for every frame
1200 * but coded buffer need to be mapped and accessed after vaRenderPicture/vaEndPicture
1201 * so VA won't maintain the coded buffer
1203 va_status = vaCreateBuffer(va_dpy, context_id, VAEncCodedBufferType,
1204 codedbuf_size, 1, NULL, &gl_surfaces[i].coded_buf);
1205 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1208 /* create OpenGL objects */
1209 //glGenFramebuffers(SURFACE_NUM, fbos);
1211 for (i = 0; i < SURFACE_NUM; i++) {
1213 gl_surfaces[i].y_tex = resource_pool->create_2d_texture(GL_R8, 1, 1);
1214 gl_surfaces[i].cbcr_tex = resource_pool->create_2d_texture(GL_RG8, 1, 1);
1216 gl_surfaces[i].y_tex = resource_pool->create_2d_texture(GL_R8, frame_width, frame_height);
1217 gl_surfaces[i].cbcr_tex = resource_pool->create_2d_texture(GL_RG8, frame_width / 2, frame_height / 2);
1219 // Generate a PBO to read into. It doesn't necessarily fit 1:1 with the VA-API
1220 // buffers, due to potentially differing pitch.
1221 glGenBuffers(1, &gl_surfaces[i].pbo);
1222 glBindBuffer(GL_PIXEL_PACK_BUFFER, gl_surfaces[i].pbo);
1223 glBufferStorage(GL_PIXEL_PACK_BUFFER, frame_width * frame_height * 2, nullptr, GL_MAP_READ_BIT | GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT);
1224 uint8_t *ptr = (uint8_t *)glMapBufferRange(GL_PIXEL_PACK_BUFFER, 0, frame_width * frame_height * 2, GL_MAP_READ_BIT | GL_MAP_PERSISTENT_BIT);
1225 gl_surfaces[i].y_offset = 0;
1226 gl_surfaces[i].cbcr_offset = frame_width * frame_height;
1227 gl_surfaces[i].y_ptr = ptr + gl_surfaces[i].y_offset;
1228 gl_surfaces[i].cbcr_ptr = ptr + gl_surfaces[i].cbcr_offset;
1229 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1233 for (i = 0; i < SURFACE_NUM; i++) {
1234 gl_surfaces[i].src_surface = src_surface[i];
1235 gl_surfaces[i].ref_surface = ref_surface[i];
1241 // Given a list like 1 9 3 0 2 8 4 and a pivot element 3, will produce
1244 template<class T, class C>
1245 static void sort_two(T *begin, T *end, const T &pivot, const C &less_than)
1247 T *middle = partition(begin, end, [&](const T &elem) { return less_than(elem, pivot); });
1248 sort(begin, middle, [&](const T &a, const T &b) { return less_than(b, a); });
1249 sort(middle, end, less_than);
1252 void QuickSyncEncoderImpl::update_ReferenceFrames(int frame_type)
1256 if (frame_type == FRAME_B)
1259 CurrentCurrPic.flags = VA_PICTURE_H264_SHORT_TERM_REFERENCE;
1261 if (numShortTerm > num_ref_frames)
1262 numShortTerm = num_ref_frames;
1263 for (i=numShortTerm-1; i>0; i--)
1264 ReferenceFrames[i] = ReferenceFrames[i-1];
1265 ReferenceFrames[0] = CurrentCurrPic;
1267 current_frame_num++;
1268 if (current_frame_num > MaxFrameNum)
1269 current_frame_num = 0;
1273 int QuickSyncEncoderImpl::update_RefPicList(int frame_type)
1275 const auto descending_by_frame_idx = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1276 return a.frame_idx > b.frame_idx;
1278 const auto ascending_by_top_field_order_cnt = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1279 return a.TopFieldOrderCnt < b.TopFieldOrderCnt;
1281 const auto descending_by_top_field_order_cnt = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1282 return a.TopFieldOrderCnt > b.TopFieldOrderCnt;
1285 if (frame_type == FRAME_P) {
1286 memcpy(RefPicList0_P, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1287 sort(&RefPicList0_P[0], &RefPicList0_P[numShortTerm], descending_by_frame_idx);
1288 } else if (frame_type == FRAME_B) {
1289 memcpy(RefPicList0_B, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1290 sort_two(&RefPicList0_B[0], &RefPicList0_B[numShortTerm], CurrentCurrPic, ascending_by_top_field_order_cnt);
1292 memcpy(RefPicList1_B, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1293 sort_two(&RefPicList1_B[0], &RefPicList1_B[numShortTerm], CurrentCurrPic, descending_by_top_field_order_cnt);
1300 int QuickSyncEncoderImpl::render_sequence()
1302 VABufferID seq_param_buf, rc_param_buf, render_id[2];
1304 VAEncMiscParameterBuffer *misc_param;
1305 VAEncMiscParameterRateControl *misc_rate_ctrl;
1307 seq_param.level_idc = 41 /*SH_LEVEL_3*/;
1308 seq_param.picture_width_in_mbs = frame_width_mbaligned / 16;
1309 seq_param.picture_height_in_mbs = frame_height_mbaligned / 16;
1310 seq_param.bits_per_second = frame_bitrate;
1312 seq_param.intra_period = intra_period;
1313 seq_param.intra_idr_period = intra_idr_period;
1314 seq_param.ip_period = ip_period;
1316 seq_param.max_num_ref_frames = num_ref_frames;
1317 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1318 seq_param.time_scale = TIMEBASE * 2;
1319 seq_param.num_units_in_tick = 1; /* Tc = num_units_in_tick / scale */
1320 seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 = Log2MaxPicOrderCntLsb - 4;
1321 seq_param.seq_fields.bits.log2_max_frame_num_minus4 = Log2MaxFrameNum - 4;;
1322 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1323 seq_param.seq_fields.bits.chroma_format_idc = 1;
1324 seq_param.seq_fields.bits.direct_8x8_inference_flag = 1;
1326 if (frame_width != frame_width_mbaligned ||
1327 frame_height != frame_height_mbaligned) {
1328 seq_param.frame_cropping_flag = 1;
1329 seq_param.frame_crop_left_offset = 0;
1330 seq_param.frame_crop_right_offset = (frame_width_mbaligned - frame_width)/2;
1331 seq_param.frame_crop_top_offset = 0;
1332 seq_param.frame_crop_bottom_offset = (frame_height_mbaligned - frame_height)/2;
1335 va_status = vaCreateBuffer(va_dpy, context_id,
1336 VAEncSequenceParameterBufferType,
1337 sizeof(seq_param), 1, &seq_param, &seq_param_buf);
1338 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1340 va_status = vaCreateBuffer(va_dpy, context_id,
1341 VAEncMiscParameterBufferType,
1342 sizeof(VAEncMiscParameterBuffer) + sizeof(VAEncMiscParameterRateControl),
1343 1, NULL, &rc_param_buf);
1344 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1346 vaMapBuffer(va_dpy, rc_param_buf, (void **)&misc_param);
1347 misc_param->type = VAEncMiscParameterTypeRateControl;
1348 misc_rate_ctrl = (VAEncMiscParameterRateControl *)misc_param->data;
1349 memset(misc_rate_ctrl, 0, sizeof(*misc_rate_ctrl));
1350 misc_rate_ctrl->bits_per_second = frame_bitrate;
1351 misc_rate_ctrl->target_percentage = 66;
1352 misc_rate_ctrl->window_size = 1000;
1353 misc_rate_ctrl->initial_qp = initial_qp;
1354 misc_rate_ctrl->min_qp = minimal_qp;
1355 misc_rate_ctrl->basic_unit_size = 0;
1356 vaUnmapBuffer(va_dpy, rc_param_buf);
1358 render_id[0] = seq_param_buf;
1359 render_id[1] = rc_param_buf;
1361 render_picture_and_delete(va_dpy, context_id, &render_id[0], 2);
1366 static int calc_poc(int pic_order_cnt_lsb, int frame_type)
1368 static int PicOrderCntMsb_ref = 0, pic_order_cnt_lsb_ref = 0;
1369 int prevPicOrderCntMsb, prevPicOrderCntLsb;
1370 int PicOrderCntMsb, TopFieldOrderCnt;
1372 if (frame_type == FRAME_IDR)
1373 prevPicOrderCntMsb = prevPicOrderCntLsb = 0;
1375 prevPicOrderCntMsb = PicOrderCntMsb_ref;
1376 prevPicOrderCntLsb = pic_order_cnt_lsb_ref;
1379 if ((pic_order_cnt_lsb < prevPicOrderCntLsb) &&
1380 ((prevPicOrderCntLsb - pic_order_cnt_lsb) >= (int)(MaxPicOrderCntLsb / 2)))
1381 PicOrderCntMsb = prevPicOrderCntMsb + MaxPicOrderCntLsb;
1382 else if ((pic_order_cnt_lsb > prevPicOrderCntLsb) &&
1383 ((pic_order_cnt_lsb - prevPicOrderCntLsb) > (int)(MaxPicOrderCntLsb / 2)))
1384 PicOrderCntMsb = prevPicOrderCntMsb - MaxPicOrderCntLsb;
1386 PicOrderCntMsb = prevPicOrderCntMsb;
1388 TopFieldOrderCnt = PicOrderCntMsb + pic_order_cnt_lsb;
1390 if (frame_type != FRAME_B) {
1391 PicOrderCntMsb_ref = PicOrderCntMsb;
1392 pic_order_cnt_lsb_ref = pic_order_cnt_lsb;
1395 return TopFieldOrderCnt;
1398 int QuickSyncEncoderImpl::render_picture(int frame_type, int display_frame_num, int gop_start_display_frame_num)
1400 VABufferID pic_param_buf;
1404 pic_param.CurrPic.picture_id = gl_surfaces[display_frame_num % SURFACE_NUM].ref_surface;
1405 pic_param.CurrPic.frame_idx = current_frame_num;
1406 pic_param.CurrPic.flags = 0;
1407 pic_param.CurrPic.TopFieldOrderCnt = calc_poc((display_frame_num - gop_start_display_frame_num) % MaxPicOrderCntLsb, frame_type);
1408 pic_param.CurrPic.BottomFieldOrderCnt = pic_param.CurrPic.TopFieldOrderCnt;
1409 CurrentCurrPic = pic_param.CurrPic;
1411 memcpy(pic_param.ReferenceFrames, ReferenceFrames, numShortTerm*sizeof(VAPictureH264));
1412 for (i = numShortTerm; i < MAX_NUM_REF1; i++) {
1413 pic_param.ReferenceFrames[i].picture_id = VA_INVALID_SURFACE;
1414 pic_param.ReferenceFrames[i].flags = VA_PICTURE_H264_INVALID;
1417 pic_param.pic_fields.bits.idr_pic_flag = (frame_type == FRAME_IDR);
1418 pic_param.pic_fields.bits.reference_pic_flag = (frame_type != FRAME_B);
1419 pic_param.pic_fields.bits.entropy_coding_mode_flag = h264_entropy_mode;
1420 pic_param.pic_fields.bits.deblocking_filter_control_present_flag = 1;
1421 pic_param.frame_num = current_frame_num;
1422 pic_param.coded_buf = gl_surfaces[display_frame_num % SURFACE_NUM].coded_buf;
1423 pic_param.last_picture = false; // FIXME
1424 pic_param.pic_init_qp = initial_qp;
1426 va_status = vaCreateBuffer(va_dpy, context_id, VAEncPictureParameterBufferType,
1427 sizeof(pic_param), 1, &pic_param, &pic_param_buf);
1428 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1430 render_picture_and_delete(va_dpy, context_id, &pic_param_buf, 1);
1435 int QuickSyncEncoderImpl::render_packedsequence()
1437 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1438 VABufferID packedseq_para_bufid, packedseq_data_bufid, render_id[2];
1439 unsigned int length_in_bits;
1440 unsigned char *packedseq_buffer = NULL;
1443 length_in_bits = build_packed_seq_buffer(&packedseq_buffer);
1445 packedheader_param_buffer.type = VAEncPackedHeaderSequence;
1447 packedheader_param_buffer.bit_length = length_in_bits; /*length_in_bits*/
1448 packedheader_param_buffer.has_emulation_bytes = 0;
1449 va_status = vaCreateBuffer(va_dpy,
1451 VAEncPackedHeaderParameterBufferType,
1452 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1453 &packedseq_para_bufid);
1454 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1456 va_status = vaCreateBuffer(va_dpy,
1458 VAEncPackedHeaderDataBufferType,
1459 (length_in_bits + 7) / 8, 1, packedseq_buffer,
1460 &packedseq_data_bufid);
1461 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1463 render_id[0] = packedseq_para_bufid;
1464 render_id[1] = packedseq_data_bufid;
1465 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1467 free(packedseq_buffer);
1473 int QuickSyncEncoderImpl::render_packedpicture()
1475 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1476 VABufferID packedpic_para_bufid, packedpic_data_bufid, render_id[2];
1477 unsigned int length_in_bits;
1478 unsigned char *packedpic_buffer = NULL;
1481 length_in_bits = build_packed_pic_buffer(&packedpic_buffer);
1482 packedheader_param_buffer.type = VAEncPackedHeaderPicture;
1483 packedheader_param_buffer.bit_length = length_in_bits;
1484 packedheader_param_buffer.has_emulation_bytes = 0;
1486 va_status = vaCreateBuffer(va_dpy,
1488 VAEncPackedHeaderParameterBufferType,
1489 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1490 &packedpic_para_bufid);
1491 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1493 va_status = vaCreateBuffer(va_dpy,
1495 VAEncPackedHeaderDataBufferType,
1496 (length_in_bits + 7) / 8, 1, packedpic_buffer,
1497 &packedpic_data_bufid);
1498 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1500 render_id[0] = packedpic_para_bufid;
1501 render_id[1] = packedpic_data_bufid;
1502 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1504 free(packedpic_buffer);
1509 void QuickSyncEncoderImpl::render_packedslice()
1511 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1512 VABufferID packedslice_para_bufid, packedslice_data_bufid, render_id[2];
1513 unsigned int length_in_bits;
1514 unsigned char *packedslice_buffer = NULL;
1517 length_in_bits = build_packed_slice_buffer(&packedslice_buffer);
1518 packedheader_param_buffer.type = VAEncPackedHeaderSlice;
1519 packedheader_param_buffer.bit_length = length_in_bits;
1520 packedheader_param_buffer.has_emulation_bytes = 0;
1522 va_status = vaCreateBuffer(va_dpy,
1524 VAEncPackedHeaderParameterBufferType,
1525 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1526 &packedslice_para_bufid);
1527 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1529 va_status = vaCreateBuffer(va_dpy,
1531 VAEncPackedHeaderDataBufferType,
1532 (length_in_bits + 7) / 8, 1, packedslice_buffer,
1533 &packedslice_data_bufid);
1534 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1536 render_id[0] = packedslice_para_bufid;
1537 render_id[1] = packedslice_data_bufid;
1538 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1540 free(packedslice_buffer);
1543 int QuickSyncEncoderImpl::render_slice(int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num, int frame_type)
1545 VABufferID slice_param_buf;
1549 update_RefPicList(frame_type);
1551 /* one frame, one slice */
1552 slice_param.macroblock_address = 0;
1553 slice_param.num_macroblocks = frame_width_mbaligned * frame_height_mbaligned/(16*16); /* Measured by MB */
1554 slice_param.slice_type = (frame_type == FRAME_IDR)?2:frame_type;
1555 if (frame_type == FRAME_IDR) {
1556 if (encoding_frame_num != 0)
1557 ++slice_param.idr_pic_id;
1558 } else if (frame_type == FRAME_P) {
1559 int refpiclist0_max = h264_maxref & 0xffff;
1560 memcpy(slice_param.RefPicList0, RefPicList0_P, refpiclist0_max*sizeof(VAPictureH264));
1562 for (i = refpiclist0_max; i < MAX_NUM_REF2; i++) {
1563 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1564 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1566 } else if (frame_type == FRAME_B) {
1567 int refpiclist0_max = h264_maxref & 0xffff;
1568 int refpiclist1_max = (h264_maxref >> 16) & 0xffff;
1570 memcpy(slice_param.RefPicList0, RefPicList0_B, refpiclist0_max*sizeof(VAPictureH264));
1571 for (i = refpiclist0_max; i < MAX_NUM_REF2; i++) {
1572 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1573 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1576 memcpy(slice_param.RefPicList1, RefPicList1_B, refpiclist1_max*sizeof(VAPictureH264));
1577 for (i = refpiclist1_max; i < MAX_NUM_REF2; i++) {
1578 slice_param.RefPicList1[i].picture_id = VA_INVALID_SURFACE;
1579 slice_param.RefPicList1[i].flags = VA_PICTURE_H264_INVALID;
1583 slice_param.slice_alpha_c0_offset_div2 = 0;
1584 slice_param.slice_beta_offset_div2 = 0;
1585 slice_param.direct_spatial_mv_pred_flag = 1;
1586 slice_param.pic_order_cnt_lsb = (display_frame_num - gop_start_display_frame_num) % MaxPicOrderCntLsb;
1589 if (h264_packedheader &&
1590 config_attrib[enc_packed_header_idx].value & VA_ENC_PACKED_HEADER_SLICE)
1591 render_packedslice();
1593 va_status = vaCreateBuffer(va_dpy, context_id, VAEncSliceParameterBufferType,
1594 sizeof(slice_param), 1, &slice_param, &slice_param_buf);
1595 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1597 render_picture_and_delete(va_dpy, context_id, &slice_param_buf, 1);
1604 void QuickSyncEncoderImpl::save_codeddata(storage_task task)
1606 VACodedBufferSegment *buf_list = NULL;
1611 va_status = vaMapBuffer(va_dpy, gl_surfaces[task.display_order % SURFACE_NUM].coded_buf, (void **)(&buf_list));
1612 CHECK_VASTATUS(va_status, "vaMapBuffer");
1613 while (buf_list != NULL) {
1614 data.append(reinterpret_cast<const char *>(buf_list->buf), buf_list->size);
1615 buf_list = (VACodedBufferSegment *) buf_list->next;
1617 vaUnmapBuffer(va_dpy, gl_surfaces[task.display_order % SURFACE_NUM].coded_buf);
1622 memset(&pkt, 0, sizeof(pkt));
1624 pkt.data = reinterpret_cast<uint8_t *>(&data[0]);
1625 pkt.size = data.size();
1626 pkt.stream_index = 0;
1627 if (task.frame_type == FRAME_IDR) {
1628 pkt.flags = AV_PKT_FLAG_KEY;
1632 pkt.duration = task.duration;
1634 file_mux->add_packet(pkt, task.pts + global_delay(), task.dts + global_delay());
1636 if (!global_flags.uncompressed_video_to_http &&
1637 !global_flags.x264_video_to_http) {
1638 stream_mux->add_packet(pkt, task.pts + global_delay(), task.dts + global_delay());
1641 // Encode and add all audio frames up to and including the pts of this video frame.
1644 vector<float> audio;
1646 unique_lock<mutex> lock(frame_queue_mutex);
1647 frame_queue_nonempty.wait(lock, [this]{ return storage_thread_should_quit || !pending_audio_frames.empty(); });
1648 if (storage_thread_should_quit && pending_audio_frames.empty()) return;
1649 auto it = pending_audio_frames.begin();
1650 if (it->first > task.pts) break;
1651 audio_pts = it->first;
1652 audio = move(it->second);
1653 pending_audio_frames.erase(it);
1656 file_audio_encoder->encode_audio(audio, audio_pts + global_delay());
1657 stream_audio_encoder->encode_audio(audio, audio_pts + global_delay());
1659 if (audio_pts == task.pts) break;
1664 // this is weird. but it seems to put a new frame onto the queue
1665 void QuickSyncEncoderImpl::storage_task_enqueue(storage_task task)
1667 unique_lock<mutex> lock(storage_task_queue_mutex);
1668 storage_task_queue.push(move(task));
1669 storage_task_queue_changed.notify_all();
1672 void QuickSyncEncoderImpl::storage_task_thread()
1675 storage_task current;
1677 // wait until there's an encoded frame
1678 unique_lock<mutex> lock(storage_task_queue_mutex);
1679 storage_task_queue_changed.wait(lock, [this]{ return storage_thread_should_quit || !storage_task_queue.empty(); });
1680 if (storage_thread_should_quit && storage_task_queue.empty()) return;
1681 current = move(storage_task_queue.front());
1682 storage_task_queue.pop();
1687 // waits for data, then saves it to disk.
1688 va_status = vaSyncSurface(va_dpy, gl_surfaces[current.display_order % SURFACE_NUM].src_surface);
1689 CHECK_VASTATUS(va_status, "vaSyncSurface");
1690 save_codeddata(move(current));
1693 unique_lock<mutex> lock(storage_task_queue_mutex);
1694 srcsurface_status[current.display_order % SURFACE_NUM] = SRC_SURFACE_FREE;
1695 storage_task_queue_changed.notify_all();
1700 void QuickSyncEncoderImpl::release_encode()
1702 for (unsigned i = 0; i < SURFACE_NUM; i++) {
1703 vaDestroyBuffer(va_dpy, gl_surfaces[i].coded_buf);
1704 vaDestroySurfaces(va_dpy, &gl_surfaces[i].src_surface, 1);
1705 vaDestroySurfaces(va_dpy, &gl_surfaces[i].ref_surface, 1);
1708 vaDestroyContext(va_dpy, context_id);
1709 vaDestroyConfig(va_dpy, config_id);
1712 void QuickSyncEncoderImpl::release_gl_resources()
1714 assert(is_shutdown);
1715 if (has_released_gl_resources) {
1719 for (unsigned i = 0; i < SURFACE_NUM; i++) {
1720 if (!use_zerocopy) {
1721 glBindBuffer(GL_PIXEL_PACK_BUFFER, gl_surfaces[i].pbo);
1722 glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
1723 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1724 glDeleteBuffers(1, &gl_surfaces[i].pbo);
1726 resource_pool->release_2d_texture(gl_surfaces[i].y_tex);
1727 resource_pool->release_2d_texture(gl_surfaces[i].cbcr_tex);
1730 has_released_gl_resources = true;
1733 int QuickSyncEncoderImpl::deinit_va()
1735 vaTerminate(va_dpy);
1737 va_close_display(va_dpy);
1746 QuickSyncEncoderImpl::QuickSyncEncoderImpl(const std::string &filename, movit::ResourcePool *resource_pool, QSurface *surface, const string &va_display, int width, int height, AVOutputFormat *oformat, AudioEncoder *stream_audio_encoder, X264Encoder *x264_encoder)
1747 : current_storage_frame(0), resource_pool(resource_pool), surface(surface), stream_audio_encoder(stream_audio_encoder), x264_encoder(x264_encoder), frame_width(width), frame_height(height)
1749 file_audio_encoder.reset(new AudioEncoder(AUDIO_OUTPUT_CODEC_NAME, DEFAULT_AUDIO_OUTPUT_BIT_RATE, oformat));
1750 open_output_file(filename);
1751 file_audio_encoder->add_mux(file_mux.get());
1753 frame_width_mbaligned = (frame_width + 15) & (~15);
1754 frame_height_mbaligned = (frame_height + 15) & (~15);
1758 if (global_flags.uncompressed_video_to_http ||
1759 global_flags.x264_video_to_http) {
1760 reorderer.reset(new FrameReorderer(ip_period - 1, frame_width, frame_height));
1762 if (global_flags.x264_video_to_http) {
1763 assert(x264_encoder != nullptr);
1765 assert(x264_encoder == nullptr);
1768 init_va(va_display);
1771 // No frames are ready yet.
1772 memset(srcsurface_status, SRC_SURFACE_FREE, sizeof(srcsurface_status));
1774 memset(&seq_param, 0, sizeof(seq_param));
1775 memset(&pic_param, 0, sizeof(pic_param));
1776 memset(&slice_param, 0, sizeof(slice_param));
1778 storage_thread = thread(&QuickSyncEncoderImpl::storage_task_thread, this);
1780 encode_thread = thread([this]{
1781 //SDL_GL_MakeCurrent(window, context);
1782 QOpenGLContext *context = create_context(this->surface);
1783 eglBindAPI(EGL_OPENGL_API);
1784 if (!make_current(context, this->surface)) {
1785 printf("display=%p surface=%p context=%p curr=%p err=%d\n", eglGetCurrentDisplay(), this->surface, context, eglGetCurrentContext(),
1789 encode_thread_func();
1790 delete_context(context);
1794 QuickSyncEncoderImpl::~QuickSyncEncoderImpl()
1797 release_gl_resources();
1800 bool QuickSyncEncoderImpl::begin_frame(GLuint *y_tex, GLuint *cbcr_tex)
1802 assert(!is_shutdown);
1804 // Wait until this frame slot is done encoding.
1805 unique_lock<mutex> lock(storage_task_queue_mutex);
1806 if (srcsurface_status[current_storage_frame % SURFACE_NUM] != SRC_SURFACE_FREE) {
1807 fprintf(stderr, "Warning: Slot %d (for frame %d) is still encoding, rendering has to wait for H.264 encoder\n",
1808 current_storage_frame % SURFACE_NUM, current_storage_frame);
1810 storage_task_queue_changed.wait(lock, [this]{ return storage_thread_should_quit || (srcsurface_status[current_storage_frame % SURFACE_NUM] == SRC_SURFACE_FREE); });
1811 srcsurface_status[current_storage_frame % SURFACE_NUM] = SRC_SURFACE_IN_ENCODING;
1812 if (storage_thread_should_quit) return false;
1815 //*fbo = fbos[current_storage_frame % SURFACE_NUM];
1816 GLSurface *surf = &gl_surfaces[current_storage_frame % SURFACE_NUM];
1817 *y_tex = surf->y_tex;
1818 *cbcr_tex = surf->cbcr_tex;
1820 VAStatus va_status = vaDeriveImage(va_dpy, surf->src_surface, &surf->surface_image);
1821 CHECK_VASTATUS(va_status, "vaDeriveImage");
1824 VABufferInfo buf_info;
1825 buf_info.mem_type = VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME; // or VA_SURFACE_ATTRIB_MEM_TYPE_KERNEL_DRM?
1826 va_status = vaAcquireBufferHandle(va_dpy, surf->surface_image.buf, &buf_info);
1827 CHECK_VASTATUS(va_status, "vaAcquireBufferHandle");
1830 surf->y_egl_image = EGL_NO_IMAGE_KHR;
1831 EGLint y_attribs[] = {
1832 EGL_WIDTH, frame_width,
1833 EGL_HEIGHT, frame_height,
1834 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('R', '8', ' ', ' '),
1835 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
1836 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[0]),
1837 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[0]),
1841 surf->y_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, y_attribs);
1842 assert(surf->y_egl_image != EGL_NO_IMAGE_KHR);
1844 // Associate Y image to a texture.
1845 glBindTexture(GL_TEXTURE_2D, *y_tex);
1846 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->y_egl_image);
1848 // Create CbCr image.
1849 surf->cbcr_egl_image = EGL_NO_IMAGE_KHR;
1850 EGLint cbcr_attribs[] = {
1851 EGL_WIDTH, frame_width,
1852 EGL_HEIGHT, frame_height,
1853 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('G', 'R', '8', '8'),
1854 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
1855 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[1]),
1856 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[1]),
1860 surf->cbcr_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, cbcr_attribs);
1861 assert(surf->cbcr_egl_image != EGL_NO_IMAGE_KHR);
1863 // Associate CbCr image to a texture.
1864 glBindTexture(GL_TEXTURE_2D, *cbcr_tex);
1865 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->cbcr_egl_image);
1871 void QuickSyncEncoderImpl::add_audio(int64_t pts, vector<float> audio)
1873 assert(!is_shutdown);
1875 unique_lock<mutex> lock(frame_queue_mutex);
1876 pending_audio_frames[pts] = move(audio);
1878 frame_queue_nonempty.notify_all();
1881 RefCountedGLsync QuickSyncEncoderImpl::end_frame(int64_t pts, int64_t duration, const vector<RefCountedFrame> &input_frames)
1883 assert(!is_shutdown);
1885 if (!use_zerocopy) {
1886 GLSurface *surf = &gl_surfaces[current_storage_frame % SURFACE_NUM];
1888 glPixelStorei(GL_PACK_ROW_LENGTH, 0);
1891 glBindBuffer(GL_PIXEL_PACK_BUFFER, surf->pbo);
1894 glBindTexture(GL_TEXTURE_2D, surf->y_tex);
1896 glGetTexImage(GL_TEXTURE_2D, 0, GL_RED, GL_UNSIGNED_BYTE, BUFFER_OFFSET(surf->y_offset));
1899 glBindTexture(GL_TEXTURE_2D, surf->cbcr_tex);
1901 glGetTexImage(GL_TEXTURE_2D, 0, GL_RG, GL_UNSIGNED_BYTE, BUFFER_OFFSET(surf->cbcr_offset));
1904 glBindTexture(GL_TEXTURE_2D, 0);
1906 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1909 glMemoryBarrier(GL_TEXTURE_UPDATE_BARRIER_BIT | GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT);
1913 RefCountedGLsync fence = RefCountedGLsync(GL_SYNC_GPU_COMMANDS_COMPLETE, /*flags=*/0);
1915 glFlush(); // Make the H.264 thread see the fence as soon as possible.
1919 unique_lock<mutex> lock(frame_queue_mutex);
1920 pending_video_frames[current_storage_frame] = PendingFrame{ fence, input_frames, pts, duration };
1921 ++current_storage_frame;
1923 frame_queue_nonempty.notify_all();
1927 void QuickSyncEncoderImpl::shutdown()
1934 unique_lock<mutex> lock(frame_queue_mutex);
1935 encode_thread_should_quit = true;
1936 frame_queue_nonempty.notify_all();
1938 encode_thread.join();
1940 unique_lock<mutex> lock(storage_task_queue_mutex);
1941 storage_thread_should_quit = true;
1942 frame_queue_nonempty.notify_all();
1943 storage_task_queue_changed.notify_all();
1945 storage_thread.join();
1946 encode_remaining_audio();
1954 void QuickSyncEncoderImpl::open_output_file(const std::string &filename)
1956 AVFormatContext *avctx = avformat_alloc_context();
1957 avctx->oformat = av_guess_format(NULL, filename.c_str(), NULL);
1958 assert(filename.size() < sizeof(avctx->filename) - 1);
1959 strcpy(avctx->filename, filename.c_str());
1961 string url = "file:" + filename;
1962 int ret = avio_open2(&avctx->pb, url.c_str(), AVIO_FLAG_WRITE, &avctx->interrupt_callback, NULL);
1964 char tmp[AV_ERROR_MAX_STRING_SIZE];
1965 fprintf(stderr, "%s: avio_open2() failed: %s\n", filename.c_str(), av_make_error_string(tmp, sizeof(tmp), ret));
1969 string video_extradata = ""; // FIXME: See other comment about global headers.
1970 file_mux.reset(new Mux(avctx, frame_width, frame_height, Mux::CODEC_H264, video_extradata, file_audio_encoder->get_ctx(), TIMEBASE, nullptr));
1973 void QuickSyncEncoderImpl::encode_thread_func()
1975 int64_t last_dts = -1;
1976 int gop_start_display_frame_num = 0;
1977 for (int encoding_frame_num = 0; ; ++encoding_frame_num) {
1980 int frame_type, display_frame_num;
1981 encoding2display_order(encoding_frame_num, intra_period, intra_idr_period, ip_period,
1982 &display_frame_num, &frame_type, &pts_lag);
1983 if (frame_type == FRAME_IDR) {
1985 current_frame_num = 0;
1986 gop_start_display_frame_num = display_frame_num;
1990 unique_lock<mutex> lock(frame_queue_mutex);
1991 frame_queue_nonempty.wait(lock, [this, display_frame_num]{
1992 return encode_thread_should_quit || pending_video_frames.count(display_frame_num) != 0;
1994 if (encode_thread_should_quit && pending_video_frames.count(display_frame_num) == 0) {
1995 // We have queued frames that were supposed to be B-frames,
1996 // but will be no P-frame to encode them against. Encode them all
1997 // as P-frames instead. Note that this happens under the mutex,
1998 // but nobody else uses it at this point, since we're shutting down,
1999 // so there's no contention.
2000 encode_remaining_frames_as_p(encoding_frame_num, gop_start_display_frame_num, last_dts);
2003 frame = move(pending_video_frames[display_frame_num]);
2004 pending_video_frames.erase(display_frame_num);
2008 // Determine the dts of this frame.
2010 if (pts_lag == -1) {
2011 assert(last_dts != -1);
2012 dts = last_dts + (TIMEBASE / MAX_FPS);
2014 dts = frame.pts - pts_lag;
2018 encode_frame(frame, encoding_frame_num, display_frame_num, gop_start_display_frame_num, frame_type, frame.pts, dts, frame.duration);
2022 void QuickSyncEncoderImpl::encode_remaining_frames_as_p(int encoding_frame_num, int gop_start_display_frame_num, int64_t last_dts)
2024 if (pending_video_frames.empty()) {
2028 for (auto &pending_frame : pending_video_frames) {
2029 int display_frame_num = pending_frame.first;
2030 assert(display_frame_num > 0);
2031 PendingFrame frame = move(pending_frame.second);
2032 int64_t dts = last_dts + (TIMEBASE / MAX_FPS);
2033 printf("Finalizing encode: Encoding leftover frame %d as P-frame instead of B-frame.\n", display_frame_num);
2034 encode_frame(frame, encoding_frame_num++, display_frame_num, gop_start_display_frame_num, FRAME_P, frame.pts, dts, frame.duration);
2038 if (global_flags.uncompressed_video_to_http ||
2039 global_flags.x264_video_to_http) {
2040 // Add frames left in reorderer.
2041 while (!reorderer->empty()) {
2042 FrameReorderer::Frame output_frame = reorderer->get_first_frame();
2043 if (global_flags.uncompressed_video_to_http) {
2044 add_packet_for_uncompressed_frame(output_frame.pts, output_frame.duration, output_frame.data);
2046 assert(global_flags.x264_video_to_http);
2047 x264_encoder->add_frame(output_frame.pts, output_frame.duration, output_frame.data);
2053 void QuickSyncEncoderImpl::encode_remaining_audio()
2055 // This really ought to be empty by now, but just to be sure...
2056 for (auto &pending_frame : pending_audio_frames) {
2057 int64_t audio_pts = pending_frame.first;
2058 vector<float> audio = move(pending_frame.second);
2060 file_audio_encoder->encode_audio(audio, audio_pts + global_delay());
2061 if (stream_audio_encoder) {
2062 stream_audio_encoder->encode_audio(audio, audio_pts + global_delay());
2065 pending_audio_frames.clear();
2067 // Encode any leftover audio in the queues, and also any delayed frames.
2068 // Note: stream_audio_encoder is not owned by us, so don't call encode_last_audio().
2069 file_audio_encoder->encode_last_audio();
2072 void QuickSyncEncoderImpl::add_packet_for_uncompressed_frame(int64_t pts, int64_t duration, const uint8_t *data)
2075 memset(&pkt, 0, sizeof(pkt));
2077 pkt.data = const_cast<uint8_t *>(data);
2078 pkt.size = frame_width * frame_height * 2;
2079 pkt.stream_index = 0;
2080 pkt.flags = AV_PKT_FLAG_KEY;
2081 pkt.duration = duration;
2082 stream_mux->add_packet(pkt, pts, pts);
2087 void memcpy_with_pitch(uint8_t *dst, const uint8_t *src, size_t src_width, size_t dst_pitch, size_t height)
2089 if (src_width == dst_pitch) {
2090 memcpy(dst, src, src_width * height);
2092 for (size_t y = 0; y < height; ++y) {
2093 const uint8_t *sptr = src + y * src_width;
2094 uint8_t *dptr = dst + y * dst_pitch;
2095 memcpy(dptr, sptr, src_width);
2102 void QuickSyncEncoderImpl::encode_frame(QuickSyncEncoderImpl::PendingFrame frame, int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num,
2103 int frame_type, int64_t pts, int64_t dts, int64_t duration)
2105 // Wait for the GPU to be done with the frame.
2108 sync_status = glClientWaitSync(frame.fence.get(), 0, 1000000000);
2110 } while (sync_status == GL_TIMEOUT_EXPIRED);
2111 assert(sync_status != GL_WAIT_FAILED);
2113 // Release back any input frames we needed to render this frame.
2114 frame.input_frames.clear();
2116 GLSurface *surf = &gl_surfaces[display_frame_num % SURFACE_NUM];
2120 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->y_egl_image);
2121 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->cbcr_egl_image);
2122 va_status = vaReleaseBufferHandle(va_dpy, surf->surface_image.buf);
2123 CHECK_VASTATUS(va_status, "vaReleaseBufferHandle");
2125 unsigned char *surface_p = nullptr;
2126 vaMapBuffer(va_dpy, surf->surface_image.buf, (void **)&surface_p);
2128 unsigned char *va_y_ptr = (unsigned char *)surface_p + surf->surface_image.offsets[0];
2129 memcpy_with_pitch(va_y_ptr, surf->y_ptr, frame_width, surf->surface_image.pitches[0], frame_height);
2131 unsigned char *va_cbcr_ptr = (unsigned char *)surface_p + surf->surface_image.offsets[1];
2132 memcpy_with_pitch(va_cbcr_ptr, surf->cbcr_ptr, (frame_width / 2) * sizeof(uint16_t), surf->surface_image.pitches[1], frame_height / 2);
2134 va_status = vaUnmapBuffer(va_dpy, surf->surface_image.buf);
2135 CHECK_VASTATUS(va_status, "vaUnmapBuffer");
2137 if (global_flags.uncompressed_video_to_http ||
2138 global_flags.x264_video_to_http) {
2139 // Add uncompressed video. (Note that pts == dts here.)
2140 // Delay needs to match audio.
2141 FrameReorderer::Frame output_frame = reorderer->reorder_frame(pts + global_delay(), duration, reinterpret_cast<uint8_t *>(surf->y_ptr));
2142 if (output_frame.data != nullptr) {
2143 if (global_flags.uncompressed_video_to_http) {
2144 add_packet_for_uncompressed_frame(output_frame.pts, output_frame.duration, output_frame.data);
2146 assert(global_flags.x264_video_to_http);
2147 x264_encoder->add_frame(output_frame.pts, output_frame.duration, output_frame.data);
2153 va_status = vaDestroyImage(va_dpy, surf->surface_image.image_id);
2154 CHECK_VASTATUS(va_status, "vaDestroyImage");
2156 // Schedule the frame for encoding.
2157 VASurfaceID va_surface = surf->src_surface;
2158 va_status = vaBeginPicture(va_dpy, context_id, va_surface);
2159 CHECK_VASTATUS(va_status, "vaBeginPicture");
2161 if (frame_type == FRAME_IDR) {
2162 // FIXME: If the mux wants global headers, we should not put the
2163 // SPS/PPS before each IDR frame, but rather put it into the
2164 // codec extradata (formatted differently?).
2166 render_picture(frame_type, display_frame_num, gop_start_display_frame_num);
2167 if (h264_packedheader) {
2168 render_packedsequence();
2169 render_packedpicture();
2172 //render_sequence();
2173 render_picture(frame_type, display_frame_num, gop_start_display_frame_num);
2175 render_slice(encoding_frame_num, display_frame_num, gop_start_display_frame_num, frame_type);
2177 va_status = vaEndPicture(va_dpy, context_id);
2178 CHECK_VASTATUS(va_status, "vaEndPicture");
2180 // so now the data is done encoding (well, async job kicked off)...
2181 // we send that to the storage thread
2183 tmp.display_order = display_frame_num;
2184 tmp.frame_type = frame_type;
2187 tmp.duration = duration;
2188 storage_task_enqueue(move(tmp));
2190 update_ReferenceFrames(frame_type);
2194 QuickSyncEncoder::QuickSyncEncoder(const std::string &filename, movit::ResourcePool *resource_pool, QSurface *surface, const string &va_display, int width, int height, AVOutputFormat *oformat, AudioEncoder *stream_audio_encoder, X264Encoder *x264_encoder)
2195 : impl(new QuickSyncEncoderImpl(filename, resource_pool, surface, va_display, width, height, oformat, stream_audio_encoder, x264_encoder)) {}
2197 // Must be defined here because unique_ptr<> destructor needs to know the impl.
2198 QuickSyncEncoder::~QuickSyncEncoder() {}
2200 void QuickSyncEncoder::add_audio(int64_t pts, vector<float> audio)
2202 impl->add_audio(pts, audio);
2205 bool QuickSyncEncoder::begin_frame(GLuint *y_tex, GLuint *cbcr_tex)
2207 return impl->begin_frame(y_tex, cbcr_tex);
2210 RefCountedGLsync QuickSyncEncoder::end_frame(int64_t pts, int64_t duration, const vector<RefCountedFrame> &input_frames)
2212 return impl->end_frame(pts, duration, input_frames);
2215 void QuickSyncEncoder::shutdown()
2220 void QuickSyncEncoder::set_stream_mux(Mux *mux)
2222 impl->set_stream_mux(mux);