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, 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)
209 // So we never get negative dts.
210 int64_t global_delay() const {
211 return int64_t(ip_period - 1) * (TIMEBASE / MAX_FPS);
215 struct storage_task {
216 unsigned long long display_order;
219 int64_t pts, dts, duration;
221 struct PendingFrame {
222 RefCountedGLsync fence;
223 vector<RefCountedFrame> input_frames;
224 int64_t pts, duration;
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 storage_task_enqueue(storage_task task);
235 void save_codeddata(storage_task task);
236 int render_packedsequence();
237 int render_packedpicture();
238 void render_packedslice();
239 int render_sequence();
240 int render_picture(int frame_type, int display_frame_num, int gop_start_display_frame_num);
241 void sps_rbsp(bitstream *bs);
242 void pps_rbsp(bitstream *bs);
243 int build_packed_pic_buffer(unsigned char **header_buffer);
244 int render_slice(int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num, int frame_type);
245 void slice_header(bitstream *bs);
246 int build_packed_seq_buffer(unsigned char **header_buffer);
247 int build_packed_slice_buffer(unsigned char **header_buffer);
248 int init_va(const string &va_display);
250 void enable_zerocopy_if_possible();
251 VADisplay va_open_display(const string &va_display);
252 void va_close_display(VADisplay va_dpy);
254 void release_encode();
255 void update_ReferenceFrames(int frame_type);
256 int update_RefPicList(int frame_type);
258 bool is_shutdown = false;
259 bool has_released_gl_resources = false;
263 thread encode_thread, storage_thread;
265 mutex storage_task_queue_mutex;
266 condition_variable storage_task_queue_changed;
267 int srcsurface_status[SURFACE_NUM]; // protected by storage_task_queue_mutex
268 queue<storage_task> storage_task_queue; // protected by storage_task_queue_mutex
269 bool storage_thread_should_quit = false; // protected by storage_task_queue_mutex
271 mutex frame_queue_mutex;
272 condition_variable frame_queue_nonempty;
273 bool encode_thread_should_quit = false; // under frame_queue_mutex
275 int current_storage_frame;
277 map<int, PendingFrame> pending_video_frames; // under frame_queue_mutex
278 movit::ResourcePool *resource_pool;
281 unique_ptr<AudioEncoder> file_audio_encoder;
283 unique_ptr<FrameReorderer> reorderer;
284 X264Encoder *x264_encoder; // nullptr if not using x264.
286 Mux* stream_mux = nullptr; // To HTTP.
287 unique_ptr<Mux> file_mux; // To local disk.
289 Display *x11_display = nullptr;
291 // Encoder parameters
293 VAProfile h264_profile = (VAProfile)~0;
294 VAConfigAttrib config_attrib[VAConfigAttribTypeMax];
295 int config_attrib_num = 0, enc_packed_header_idx;
298 VASurfaceID src_surface, ref_surface;
299 VABufferID coded_buf;
301 VAImage surface_image;
302 GLuint y_tex, cbcr_tex;
304 // Only if use_zerocopy == true.
305 EGLImage y_egl_image, cbcr_egl_image;
307 // Only if use_zerocopy == false.
309 uint8_t *y_ptr, *cbcr_ptr;
310 size_t y_offset, cbcr_offset;
312 GLSurface gl_surfaces[SURFACE_NUM];
314 VAConfigID config_id;
315 VAContextID context_id;
316 VAEncSequenceParameterBufferH264 seq_param;
317 VAEncPictureParameterBufferH264 pic_param;
318 VAEncSliceParameterBufferH264 slice_param;
319 VAPictureH264 CurrentCurrPic;
320 VAPictureH264 ReferenceFrames[MAX_NUM_REF1], RefPicList0_P[MAX_NUM_REF2], RefPicList0_B[MAX_NUM_REF2], RefPicList1_B[MAX_NUM_REF2];
322 // Static quality settings.
323 static constexpr unsigned int frame_bitrate = 15000000 / 60; // Doesn't really matter; only initial_qp does.
324 static constexpr unsigned int num_ref_frames = 2;
325 static constexpr int initial_qp = 15;
326 static constexpr int minimal_qp = 0;
327 static constexpr int intra_period = 30;
328 static constexpr int intra_idr_period = MAX_FPS; // About a second; more at lower frame rates. Not ideal.
330 // Quality settings that are meant to be static, but might be overridden
332 int constraint_set_flag = 0;
333 int h264_packedheader = 0; /* support pack header? */
334 int h264_maxref = (1<<16|1);
335 int h264_entropy_mode = 1; /* cabac */
339 unsigned int current_frame_num = 0;
340 unsigned int numShortTerm = 0;
344 int frame_width_mbaligned;
345 int frame_height_mbaligned;
348 // Supposedly vaRenderPicture() is supposed to destroy the buffer implicitly,
349 // but if we don't delete it here, we get leaks. The GStreamer implementation
351 static void render_picture_and_delete(VADisplay dpy, VAContextID context, VABufferID *buffers, int num_buffers)
353 VAStatus va_status = vaRenderPicture(dpy, context, buffers, num_buffers);
354 CHECK_VASTATUS(va_status, "vaRenderPicture");
356 for (int i = 0; i < num_buffers; ++i) {
357 va_status = vaDestroyBuffer(dpy, buffers[i]);
358 CHECK_VASTATUS(va_status, "vaDestroyBuffer");
363 va_swap32(unsigned int val)
365 unsigned char *pval = (unsigned char *)&val;
367 return ((pval[0] << 24) |
374 bitstream_start(bitstream *bs)
376 bs->max_size_in_dword = BITSTREAM_ALLOCATE_STEPPING;
377 bs->buffer = (unsigned int *)calloc(bs->max_size_in_dword * sizeof(int), 1);
382 bitstream_end(bitstream *bs)
384 int pos = (bs->bit_offset >> 5);
385 int bit_offset = (bs->bit_offset & 0x1f);
386 int bit_left = 32 - bit_offset;
389 bs->buffer[pos] = va_swap32((bs->buffer[pos] << bit_left));
394 bitstream_put_ui(bitstream *bs, unsigned int val, int size_in_bits)
396 int pos = (bs->bit_offset >> 5);
397 int bit_offset = (bs->bit_offset & 0x1f);
398 int bit_left = 32 - bit_offset;
403 bs->bit_offset += size_in_bits;
405 if (bit_left > size_in_bits) {
406 bs->buffer[pos] = (bs->buffer[pos] << size_in_bits | val);
408 size_in_bits -= bit_left;
409 if (bit_left >= 32) {
410 bs->buffer[pos] = (val >> size_in_bits);
412 bs->buffer[pos] = (bs->buffer[pos] << bit_left) | (val >> size_in_bits);
414 bs->buffer[pos] = va_swap32(bs->buffer[pos]);
416 if (pos + 1 == bs->max_size_in_dword) {
417 bs->max_size_in_dword += BITSTREAM_ALLOCATE_STEPPING;
418 bs->buffer = (unsigned int *)realloc(bs->buffer, bs->max_size_in_dword * sizeof(unsigned int));
421 bs->buffer[pos + 1] = val;
426 bitstream_put_ue(bitstream *bs, unsigned int val)
428 int size_in_bits = 0;
436 bitstream_put_ui(bs, 0, size_in_bits - 1); // leading zero
437 bitstream_put_ui(bs, val, size_in_bits);
441 bitstream_put_se(bitstream *bs, int val)
443 unsigned int new_val;
448 new_val = 2 * val - 1;
450 bitstream_put_ue(bs, new_val);
454 bitstream_byte_aligning(bitstream *bs, int bit)
456 int bit_offset = (bs->bit_offset & 0x7);
457 int bit_left = 8 - bit_offset;
463 assert(bit == 0 || bit == 1);
466 new_val = (1 << bit_left) - 1;
470 bitstream_put_ui(bs, new_val, bit_left);
474 rbsp_trailing_bits(bitstream *bs)
476 bitstream_put_ui(bs, 1, 1);
477 bitstream_byte_aligning(bs, 0);
480 static void nal_start_code_prefix(bitstream *bs)
482 bitstream_put_ui(bs, 0x00000001, 32);
485 static void nal_header(bitstream *bs, int nal_ref_idc, int nal_unit_type)
487 bitstream_put_ui(bs, 0, 1); /* forbidden_zero_bit: 0 */
488 bitstream_put_ui(bs, nal_ref_idc, 2);
489 bitstream_put_ui(bs, nal_unit_type, 5);
492 void QuickSyncEncoderImpl::sps_rbsp(bitstream *bs)
494 int profile_idc = PROFILE_IDC_BASELINE;
496 if (h264_profile == VAProfileH264High)
497 profile_idc = PROFILE_IDC_HIGH;
498 else if (h264_profile == VAProfileH264Main)
499 profile_idc = PROFILE_IDC_MAIN;
501 bitstream_put_ui(bs, profile_idc, 8); /* profile_idc */
502 bitstream_put_ui(bs, !!(constraint_set_flag & 1), 1); /* constraint_set0_flag */
503 bitstream_put_ui(bs, !!(constraint_set_flag & 2), 1); /* constraint_set1_flag */
504 bitstream_put_ui(bs, !!(constraint_set_flag & 4), 1); /* constraint_set2_flag */
505 bitstream_put_ui(bs, !!(constraint_set_flag & 8), 1); /* constraint_set3_flag */
506 bitstream_put_ui(bs, 0, 4); /* reserved_zero_4bits */
507 bitstream_put_ui(bs, seq_param.level_idc, 8); /* level_idc */
508 bitstream_put_ue(bs, seq_param.seq_parameter_set_id); /* seq_parameter_set_id */
510 if ( profile_idc == PROFILE_IDC_HIGH) {
511 bitstream_put_ue(bs, 1); /* chroma_format_idc = 1, 4:2:0 */
512 bitstream_put_ue(bs, 0); /* bit_depth_luma_minus8 */
513 bitstream_put_ue(bs, 0); /* bit_depth_chroma_minus8 */
514 bitstream_put_ui(bs, 0, 1); /* qpprime_y_zero_transform_bypass_flag */
515 bitstream_put_ui(bs, 0, 1); /* seq_scaling_matrix_present_flag */
518 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_frame_num_minus4); /* log2_max_frame_num_minus4 */
519 bitstream_put_ue(bs, seq_param.seq_fields.bits.pic_order_cnt_type); /* pic_order_cnt_type */
521 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0)
522 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4); /* log2_max_pic_order_cnt_lsb_minus4 */
527 bitstream_put_ue(bs, seq_param.max_num_ref_frames); /* num_ref_frames */
528 bitstream_put_ui(bs, 0, 1); /* gaps_in_frame_num_value_allowed_flag */
530 bitstream_put_ue(bs, seq_param.picture_width_in_mbs - 1); /* pic_width_in_mbs_minus1 */
531 bitstream_put_ue(bs, seq_param.picture_height_in_mbs - 1); /* pic_height_in_map_units_minus1 */
532 bitstream_put_ui(bs, seq_param.seq_fields.bits.frame_mbs_only_flag, 1); /* frame_mbs_only_flag */
534 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
538 bitstream_put_ui(bs, seq_param.seq_fields.bits.direct_8x8_inference_flag, 1); /* direct_8x8_inference_flag */
539 bitstream_put_ui(bs, seq_param.frame_cropping_flag, 1); /* frame_cropping_flag */
541 if (seq_param.frame_cropping_flag) {
542 bitstream_put_ue(bs, seq_param.frame_crop_left_offset); /* frame_crop_left_offset */
543 bitstream_put_ue(bs, seq_param.frame_crop_right_offset); /* frame_crop_right_offset */
544 bitstream_put_ue(bs, seq_param.frame_crop_top_offset); /* frame_crop_top_offset */
545 bitstream_put_ue(bs, seq_param.frame_crop_bottom_offset); /* frame_crop_bottom_offset */
548 //if ( frame_bit_rate < 0 ) { //TODO EW: the vui header isn't correct
550 bitstream_put_ui(bs, 0, 1); /* vui_parameters_present_flag */
552 bitstream_put_ui(bs, 1, 1); /* vui_parameters_present_flag */
553 bitstream_put_ui(bs, 0, 1); /* aspect_ratio_info_present_flag */
554 bitstream_put_ui(bs, 0, 1); /* overscan_info_present_flag */
555 bitstream_put_ui(bs, 1, 1); /* video_signal_type_present_flag */
557 bitstream_put_ui(bs, 5, 3); /* video_format (5 = Unspecified) */
558 bitstream_put_ui(bs, 0, 1); /* video_full_range_flag */
559 bitstream_put_ui(bs, 1, 1); /* colour_description_present_flag */
561 bitstream_put_ui(bs, 1, 8); /* colour_primaries (1 = BT.709) */
562 bitstream_put_ui(bs, 2, 8); /* transfer_characteristics (2 = unspecified, since we use sRGB) */
563 bitstream_put_ui(bs, 6, 8); /* matrix_coefficients (6 = BT.601/SMPTE 170M) */
566 bitstream_put_ui(bs, 0, 1); /* chroma_loc_info_present_flag */
567 bitstream_put_ui(bs, 1, 1); /* timing_info_present_flag */
569 bitstream_put_ui(bs, 1, 32); // FPS
570 bitstream_put_ui(bs, TIMEBASE * 2, 32); // FPS
571 bitstream_put_ui(bs, 1, 1);
573 bitstream_put_ui(bs, 1, 1); /* nal_hrd_parameters_present_flag */
576 bitstream_put_ue(bs, 0); /* cpb_cnt_minus1 */
577 bitstream_put_ui(bs, 4, 4); /* bit_rate_scale */
578 bitstream_put_ui(bs, 6, 4); /* cpb_size_scale */
580 bitstream_put_ue(bs, frame_bitrate - 1); /* bit_rate_value_minus1[0] */
581 bitstream_put_ue(bs, frame_bitrate*8 - 1); /* cpb_size_value_minus1[0] */
582 bitstream_put_ui(bs, 1, 1); /* cbr_flag[0] */
584 bitstream_put_ui(bs, 23, 5); /* initial_cpb_removal_delay_length_minus1 */
585 bitstream_put_ui(bs, 23, 5); /* cpb_removal_delay_length_minus1 */
586 bitstream_put_ui(bs, 23, 5); /* dpb_output_delay_length_minus1 */
587 bitstream_put_ui(bs, 23, 5); /* time_offset_length */
589 bitstream_put_ui(bs, 0, 1); /* vcl_hrd_parameters_present_flag */
590 bitstream_put_ui(bs, 0, 1); /* low_delay_hrd_flag */
592 bitstream_put_ui(bs, 0, 1); /* pic_struct_present_flag */
593 bitstream_put_ui(bs, 0, 1); /* bitstream_restriction_flag */
596 rbsp_trailing_bits(bs); /* rbsp_trailing_bits */
600 void QuickSyncEncoderImpl::pps_rbsp(bitstream *bs)
602 bitstream_put_ue(bs, pic_param.pic_parameter_set_id); /* pic_parameter_set_id */
603 bitstream_put_ue(bs, pic_param.seq_parameter_set_id); /* seq_parameter_set_id */
605 bitstream_put_ui(bs, pic_param.pic_fields.bits.entropy_coding_mode_flag, 1); /* entropy_coding_mode_flag */
607 bitstream_put_ui(bs, 0, 1); /* pic_order_present_flag: 0 */
609 bitstream_put_ue(bs, 0); /* num_slice_groups_minus1 */
611 bitstream_put_ue(bs, pic_param.num_ref_idx_l0_active_minus1); /* num_ref_idx_l0_active_minus1 */
612 bitstream_put_ue(bs, pic_param.num_ref_idx_l1_active_minus1); /* num_ref_idx_l1_active_minus1 1 */
614 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_pred_flag, 1); /* weighted_pred_flag: 0 */
615 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_bipred_idc, 2); /* weighted_bipred_idc: 0 */
617 bitstream_put_se(bs, pic_param.pic_init_qp - 26); /* pic_init_qp_minus26 */
618 bitstream_put_se(bs, 0); /* pic_init_qs_minus26 */
619 bitstream_put_se(bs, 0); /* chroma_qp_index_offset */
621 bitstream_put_ui(bs, pic_param.pic_fields.bits.deblocking_filter_control_present_flag, 1); /* deblocking_filter_control_present_flag */
622 bitstream_put_ui(bs, 0, 1); /* constrained_intra_pred_flag */
623 bitstream_put_ui(bs, 0, 1); /* redundant_pic_cnt_present_flag */
626 bitstream_put_ui(bs, pic_param.pic_fields.bits.transform_8x8_mode_flag, 1); /*transform_8x8_mode_flag */
627 bitstream_put_ui(bs, 0, 1); /* pic_scaling_matrix_present_flag */
628 bitstream_put_se(bs, pic_param.second_chroma_qp_index_offset ); /*second_chroma_qp_index_offset */
630 rbsp_trailing_bits(bs);
633 void QuickSyncEncoderImpl::slice_header(bitstream *bs)
635 int first_mb_in_slice = slice_param.macroblock_address;
637 bitstream_put_ue(bs, first_mb_in_slice); /* first_mb_in_slice: 0 */
638 bitstream_put_ue(bs, slice_param.slice_type); /* slice_type */
639 bitstream_put_ue(bs, slice_param.pic_parameter_set_id); /* pic_parameter_set_id: 0 */
640 bitstream_put_ui(bs, pic_param.frame_num, seq_param.seq_fields.bits.log2_max_frame_num_minus4 + 4); /* frame_num */
642 /* frame_mbs_only_flag == 1 */
643 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
648 if (pic_param.pic_fields.bits.idr_pic_flag)
649 bitstream_put_ue(bs, slice_param.idr_pic_id); /* idr_pic_id: 0 */
651 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0) {
652 bitstream_put_ui(bs, pic_param.CurrPic.TopFieldOrderCnt, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 + 4);
653 /* pic_order_present_flag == 0 */
659 /* redundant_pic_cnt_present_flag == 0 */
661 if (IS_P_SLICE(slice_param.slice_type)) {
662 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
664 if (slice_param.num_ref_idx_active_override_flag)
665 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
667 /* ref_pic_list_reordering */
668 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
669 } else if (IS_B_SLICE(slice_param.slice_type)) {
670 bitstream_put_ui(bs, slice_param.direct_spatial_mv_pred_flag, 1); /* direct_spatial_mv_pred: 1 */
672 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
674 if (slice_param.num_ref_idx_active_override_flag) {
675 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
676 bitstream_put_ue(bs, slice_param.num_ref_idx_l1_active_minus1);
679 /* ref_pic_list_reordering */
680 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
681 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l1: 0 */
684 if ((pic_param.pic_fields.bits.weighted_pred_flag &&
685 IS_P_SLICE(slice_param.slice_type)) ||
686 ((pic_param.pic_fields.bits.weighted_bipred_idc == 1) &&
687 IS_B_SLICE(slice_param.slice_type))) {
688 /* FIXME: fill weight/offset table */
692 /* dec_ref_pic_marking */
693 if (pic_param.pic_fields.bits.reference_pic_flag) { /* nal_ref_idc != 0 */
694 unsigned char no_output_of_prior_pics_flag = 0;
695 unsigned char long_term_reference_flag = 0;
696 unsigned char adaptive_ref_pic_marking_mode_flag = 0;
698 if (pic_param.pic_fields.bits.idr_pic_flag) {
699 bitstream_put_ui(bs, no_output_of_prior_pics_flag, 1); /* no_output_of_prior_pics_flag: 0 */
700 bitstream_put_ui(bs, long_term_reference_flag, 1); /* long_term_reference_flag: 0 */
702 bitstream_put_ui(bs, adaptive_ref_pic_marking_mode_flag, 1); /* adaptive_ref_pic_marking_mode_flag: 0 */
706 if (pic_param.pic_fields.bits.entropy_coding_mode_flag &&
707 !IS_I_SLICE(slice_param.slice_type))
708 bitstream_put_ue(bs, slice_param.cabac_init_idc); /* cabac_init_idc: 0 */
710 bitstream_put_se(bs, slice_param.slice_qp_delta); /* slice_qp_delta: 0 */
712 /* ignore for SP/SI */
714 if (pic_param.pic_fields.bits.deblocking_filter_control_present_flag) {
715 bitstream_put_ue(bs, slice_param.disable_deblocking_filter_idc); /* disable_deblocking_filter_idc: 0 */
717 if (slice_param.disable_deblocking_filter_idc != 1) {
718 bitstream_put_se(bs, slice_param.slice_alpha_c0_offset_div2); /* slice_alpha_c0_offset_div2: 2 */
719 bitstream_put_se(bs, slice_param.slice_beta_offset_div2); /* slice_beta_offset_div2: 2 */
723 if (pic_param.pic_fields.bits.entropy_coding_mode_flag) {
724 bitstream_byte_aligning(bs, 1);
728 int QuickSyncEncoderImpl::build_packed_pic_buffer(unsigned char **header_buffer)
732 bitstream_start(&bs);
733 nal_start_code_prefix(&bs);
734 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_PPS);
738 *header_buffer = (unsigned char *)bs.buffer;
739 return bs.bit_offset;
743 QuickSyncEncoderImpl::build_packed_seq_buffer(unsigned char **header_buffer)
747 bitstream_start(&bs);
748 nal_start_code_prefix(&bs);
749 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_SPS);
753 *header_buffer = (unsigned char *)bs.buffer;
754 return bs.bit_offset;
757 int QuickSyncEncoderImpl::build_packed_slice_buffer(unsigned char **header_buffer)
760 int is_idr = !!pic_param.pic_fields.bits.idr_pic_flag;
761 int is_ref = !!pic_param.pic_fields.bits.reference_pic_flag;
763 bitstream_start(&bs);
764 nal_start_code_prefix(&bs);
766 if (IS_I_SLICE(slice_param.slice_type)) {
767 nal_header(&bs, NAL_REF_IDC_HIGH, is_idr ? NAL_IDR : NAL_NON_IDR);
768 } else if (IS_P_SLICE(slice_param.slice_type)) {
769 nal_header(&bs, NAL_REF_IDC_MEDIUM, NAL_NON_IDR);
771 assert(IS_B_SLICE(slice_param.slice_type));
772 nal_header(&bs, is_ref ? NAL_REF_IDC_LOW : NAL_REF_IDC_NONE, NAL_NON_IDR);
778 *header_buffer = (unsigned char *)bs.buffer;
779 return bs.bit_offset;
784 Assume frame sequence is: Frame#0, #1, #2, ..., #M, ..., #X, ... (encoding order)
785 1) period between Frame #X and Frame #N = #X - #N
786 2) 0 means infinite for intra_period/intra_idr_period, and 0 is invalid for ip_period
787 3) intra_idr_period % intra_period (intra_period > 0) and intra_period % ip_period must be 0
788 4) intra_period and intra_idr_period take precedence over ip_period
789 5) if ip_period > 1, intra_period and intra_idr_period are not the strict periods
790 of I/IDR frames, see bellow examples
791 -------------------------------------------------------------------
792 intra_period intra_idr_period ip_period frame sequence (intra_period/intra_idr_period/ip_period)
793 0 ignored 1 IDRPPPPPPP ... (No IDR/I any more)
794 0 ignored >=2 IDR(PBB)(PBB)... (No IDR/I any more)
795 1 0 ignored IDRIIIIIII... (No IDR any more)
796 1 1 ignored IDR IDR IDR IDR...
797 1 >=2 ignored IDRII IDRII IDR... (1/3/ignore)
798 >=2 0 1 IDRPPP IPPP I... (3/0/1)
799 >=2 0 >=2 IDR(PBB)(PBB)(IBB) (6/0/3)
800 (PBB)(IBB)(PBB)(IBB)...
801 >=2 >=2 1 IDRPPPPP IPPPPP IPPPPP (6/18/1)
802 IDRPPPPP IPPPPP IPPPPP...
803 >=2 >=2 >=2 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)} (6/18/3)
804 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)}...
805 {IDR(PBB)(PBB)(IBB)(PBB)} (6/12/3)
806 {IDR(PBB)(PBB)(IBB)(PBB)}...
807 {IDR(PBB)(PBB)} (6/6/3)
811 // General pts/dts strategy:
813 // Getting pts and dts right with variable frame rate (VFR) and B-frames can be a
814 // bit tricky. We assume first of all that the frame rate never goes _above_
815 // MAX_FPS, which gives us a frame period N. The decoder can always decode
816 // in at least this speed, as long at dts <= pts (the frame is not attempted
817 // presented before it is decoded). Furthermore, we never have longer chains of
818 // B-frames than a fixed constant C. (In a B-frame chain, we say that the base
819 // I/P-frame has order O=0, the B-frame depending on it directly has order O=1,
820 // etc. The last frame in the chain, which no B-frames depend on, is the “tip”
821 // frame, with an order O <= C.)
823 // Many strategies are possible, but we establish these rules:
825 // - Tip frames have dts = pts - (C-O)*N.
826 // - Non-tip frames have dts = dts_last + N.
828 // An example, with C=2 and N=10 and the data flow showed with arrows:
831 // pts: 30 40 50 60 70 80
833 // dts: 10 30 20 60 50←40
838 // To show that this works fine also with irregular spacings, let's say that
839 // the third frame is delayed a bit (something earlier was dropped). Now the
840 // situation looks like this:
843 // pts: 30 40 80 90 100 110
845 // dts: 10 30 20 90 50←40
850 // The resetting on every tip frame makes sure dts never ends up lagging a lot
851 // behind pts, and the subtraction of (C-O)*N makes sure pts <= dts.
853 // In the output of this function, if <dts_lag> is >= 0, it means to reset the
854 // dts from the current pts minus <dts_lag>, while if it's -1, the frame is not
855 // a tip frame and should be given a dts based on the previous one.
860 void encoding2display_order(
861 int encoding_order, int intra_period,
862 int intra_idr_period, int ip_period,
863 int *displaying_order,
864 int *frame_type, int *pts_lag)
866 int encoding_order_gop = 0;
870 if (intra_period == 1) { /* all are I/IDR frames */
871 *displaying_order = encoding_order;
872 if (intra_idr_period == 0)
873 *frame_type = (encoding_order == 0)?FRAME_IDR:FRAME_I;
875 *frame_type = (encoding_order % intra_idr_period == 0)?FRAME_IDR:FRAME_I;
879 if (intra_period == 0)
880 intra_idr_period = 0;
882 if (ip_period == 1) {
883 // No B-frames, sequence is like IDR PPPPP IPPPPP.
884 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % intra_idr_period);
885 *displaying_order = encoding_order;
887 if (encoding_order_gop == 0) { /* the first frame */
888 *frame_type = FRAME_IDR;
889 } else if (intra_period != 0 && /* have I frames */
890 encoding_order_gop >= 2 &&
891 (encoding_order_gop % intra_period == 0)) {
892 *frame_type = FRAME_I;
894 *frame_type = FRAME_P;
899 // We have B-frames. Sequence is like IDR (PBB)(PBB)(IBB)(PBB).
900 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % (intra_idr_period + 1));
901 *pts_lag = -1; // Most frames are not tip frames.
903 if (encoding_order_gop == 0) { /* the first frame */
904 *frame_type = FRAME_IDR;
905 *displaying_order = encoding_order;
906 // IDR frames are a special case; I honestly can't find the logic behind
907 // why this is the right thing, but it seems to line up nicely in practice :-)
908 *pts_lag = TIMEBASE / MAX_FPS;
909 } else if (((encoding_order_gop - 1) % ip_period) != 0) { /* B frames */
910 *frame_type = FRAME_B;
911 *displaying_order = encoding_order - 1;
912 if ((encoding_order_gop % ip_period) == 0) {
913 *pts_lag = 0; // Last B-frame.
915 } else if (intra_period != 0 && /* have I frames */
916 encoding_order_gop >= 2 &&
917 ((encoding_order_gop - 1) / ip_period % (intra_period / ip_period)) == 0) {
918 *frame_type = FRAME_I;
919 *displaying_order = encoding_order + ip_period - 1;
921 *frame_type = FRAME_P;
922 *displaying_order = encoding_order + ip_period - 1;
927 static const char *rc_to_string(int rc_mode)
940 case VA_RC_VBR_CONSTRAINED:
941 return "VBR_CONSTRAINED";
947 void QuickSyncEncoderImpl::enable_zerocopy_if_possible()
949 if (global_flags.uncompressed_video_to_http) {
950 fprintf(stderr, "Disabling zerocopy H.264 encoding due to --http-uncompressed-video.\n");
951 use_zerocopy = false;
952 } else if (global_flags.x264_video_to_http) {
953 fprintf(stderr, "Disabling zerocopy H.264 encoding due to --http-x264-video.\n");
954 use_zerocopy = false;
960 VADisplay QuickSyncEncoderImpl::va_open_display(const string &va_display)
962 if (va_display.empty()) {
963 x11_display = XOpenDisplay(NULL);
965 fprintf(stderr, "error: can't connect to X server!\n");
968 enable_zerocopy_if_possible();
969 return vaGetDisplay(x11_display);
970 } else if (va_display[0] != '/') {
971 x11_display = XOpenDisplay(va_display.c_str());
973 fprintf(stderr, "error: can't connect to X server!\n");
976 enable_zerocopy_if_possible();
977 return vaGetDisplay(x11_display);
979 drm_fd = open(va_display.c_str(), O_RDWR);
981 perror(va_display.c_str());
984 use_zerocopy = false;
985 return vaGetDisplayDRM(drm_fd);
989 void QuickSyncEncoderImpl::va_close_display(VADisplay va_dpy)
992 XCloseDisplay(x11_display);
993 x11_display = nullptr;
1000 int QuickSyncEncoderImpl::init_va(const string &va_display)
1002 VAProfile profile_list[]={VAProfileH264High, VAProfileH264Main, VAProfileH264Baseline, VAProfileH264ConstrainedBaseline};
1003 VAEntrypoint *entrypoints;
1004 int num_entrypoints, slice_entrypoint;
1005 int support_encode = 0;
1006 int major_ver, minor_ver;
1010 va_dpy = va_open_display(va_display);
1011 va_status = vaInitialize(va_dpy, &major_ver, &minor_ver);
1012 CHECK_VASTATUS(va_status, "vaInitialize");
1014 num_entrypoints = vaMaxNumEntrypoints(va_dpy);
1015 entrypoints = (VAEntrypoint *)malloc(num_entrypoints * sizeof(*entrypoints));
1017 fprintf(stderr, "error: failed to initialize VA entrypoints array\n");
1021 /* use the highest profile */
1022 for (i = 0; i < sizeof(profile_list)/sizeof(profile_list[0]); i++) {
1023 if ((h264_profile != ~0) && h264_profile != profile_list[i])
1026 h264_profile = profile_list[i];
1027 vaQueryConfigEntrypoints(va_dpy, h264_profile, entrypoints, &num_entrypoints);
1028 for (slice_entrypoint = 0; slice_entrypoint < num_entrypoints; slice_entrypoint++) {
1029 if (entrypoints[slice_entrypoint] == VAEntrypointEncSlice) {
1034 if (support_encode == 1)
1038 if (support_encode == 0) {
1039 printf("Can't find VAEntrypointEncSlice for H264 profiles. If you are using a non-Intel GPU\n");
1040 printf("but have one in your system, try launching Nageru with --va-display /dev/dri/renderD128\n");
1041 printf("to use VA-API against DRM instead of X11.\n");
1044 switch (h264_profile) {
1045 case VAProfileH264Baseline:
1047 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
1048 h264_entropy_mode = 0;
1050 case VAProfileH264ConstrainedBaseline:
1051 constraint_set_flag |= (1 << 0 | 1 << 1); /* Annex A.2.2 */
1055 case VAProfileH264Main:
1056 constraint_set_flag |= (1 << 1); /* Annex A.2.2 */
1059 case VAProfileH264High:
1060 constraint_set_flag |= (1 << 3); /* Annex A.2.4 */
1063 h264_profile = VAProfileH264Baseline;
1065 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
1070 VAConfigAttrib attrib[VAConfigAttribTypeMax];
1072 /* find out the format for the render target, and rate control mode */
1073 for (i = 0; i < VAConfigAttribTypeMax; i++)
1074 attrib[i].type = (VAConfigAttribType)i;
1076 va_status = vaGetConfigAttributes(va_dpy, h264_profile, VAEntrypointEncSlice,
1077 &attrib[0], VAConfigAttribTypeMax);
1078 CHECK_VASTATUS(va_status, "vaGetConfigAttributes");
1079 /* check the interested configattrib */
1080 if ((attrib[VAConfigAttribRTFormat].value & VA_RT_FORMAT_YUV420) == 0) {
1081 printf("Not find desired YUV420 RT format\n");
1084 config_attrib[config_attrib_num].type = VAConfigAttribRTFormat;
1085 config_attrib[config_attrib_num].value = VA_RT_FORMAT_YUV420;
1086 config_attrib_num++;
1089 if (attrib[VAConfigAttribRateControl].value != VA_ATTRIB_NOT_SUPPORTED) {
1090 int tmp = attrib[VAConfigAttribRateControl].value;
1092 if (rc_mode == -1 || !(rc_mode & tmp)) {
1093 if (rc_mode != -1) {
1094 printf("Warning: Don't support the specified RateControl mode: %s!!!, switch to ", rc_to_string(rc_mode));
1097 for (i = 0; i < sizeof(rc_default_modes) / sizeof(rc_default_modes[0]); i++) {
1098 if (rc_default_modes[i] & tmp) {
1099 rc_mode = rc_default_modes[i];
1105 config_attrib[config_attrib_num].type = VAConfigAttribRateControl;
1106 config_attrib[config_attrib_num].value = rc_mode;
1107 config_attrib_num++;
1111 if (attrib[VAConfigAttribEncPackedHeaders].value != VA_ATTRIB_NOT_SUPPORTED) {
1112 int tmp = attrib[VAConfigAttribEncPackedHeaders].value;
1114 h264_packedheader = 1;
1115 config_attrib[config_attrib_num].type = VAConfigAttribEncPackedHeaders;
1116 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
1118 if (tmp & VA_ENC_PACKED_HEADER_SEQUENCE) {
1119 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SEQUENCE;
1122 if (tmp & VA_ENC_PACKED_HEADER_PICTURE) {
1123 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_PICTURE;
1126 if (tmp & VA_ENC_PACKED_HEADER_SLICE) {
1127 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SLICE;
1130 if (tmp & VA_ENC_PACKED_HEADER_MISC) {
1131 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_MISC;
1134 enc_packed_header_idx = config_attrib_num;
1135 config_attrib_num++;
1138 if (attrib[VAConfigAttribEncInterlaced].value != VA_ATTRIB_NOT_SUPPORTED) {
1139 config_attrib[config_attrib_num].type = VAConfigAttribEncInterlaced;
1140 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
1141 config_attrib_num++;
1144 if (attrib[VAConfigAttribEncMaxRefFrames].value != VA_ATTRIB_NOT_SUPPORTED) {
1145 h264_maxref = attrib[VAConfigAttribEncMaxRefFrames].value;
1152 int QuickSyncEncoderImpl::setup_encode()
1155 VASurfaceID *tmp_surfaceid;
1156 int codedbuf_size, i;
1157 VASurfaceID src_surface[SURFACE_NUM];
1158 VASurfaceID ref_surface[SURFACE_NUM];
1160 va_status = vaCreateConfig(va_dpy, h264_profile, VAEntrypointEncSlice,
1161 &config_attrib[0], config_attrib_num, &config_id);
1162 CHECK_VASTATUS(va_status, "vaCreateConfig");
1164 /* create source surfaces */
1165 va_status = vaCreateSurfaces(va_dpy,
1166 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
1167 &src_surface[0], SURFACE_NUM,
1169 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
1171 /* create reference surfaces */
1172 va_status = vaCreateSurfaces(va_dpy,
1173 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
1174 &ref_surface[0], SURFACE_NUM,
1176 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
1178 tmp_surfaceid = (VASurfaceID *)calloc(2 * SURFACE_NUM, sizeof(VASurfaceID));
1179 memcpy(tmp_surfaceid, src_surface, SURFACE_NUM * sizeof(VASurfaceID));
1180 memcpy(tmp_surfaceid + SURFACE_NUM, ref_surface, SURFACE_NUM * sizeof(VASurfaceID));
1182 /* Create a context for this encode pipe */
1183 va_status = vaCreateContext(va_dpy, config_id,
1184 frame_width_mbaligned, frame_height_mbaligned,
1186 tmp_surfaceid, 2 * SURFACE_NUM,
1188 CHECK_VASTATUS(va_status, "vaCreateContext");
1189 free(tmp_surfaceid);
1191 codedbuf_size = (frame_width_mbaligned * frame_height_mbaligned * 400) / (16*16);
1193 for (i = 0; i < SURFACE_NUM; i++) {
1194 /* create coded buffer once for all
1195 * other VA buffers which won't be used again after vaRenderPicture.
1196 * so APP can always vaCreateBuffer for every frame
1197 * but coded buffer need to be mapped and accessed after vaRenderPicture/vaEndPicture
1198 * so VA won't maintain the coded buffer
1200 va_status = vaCreateBuffer(va_dpy, context_id, VAEncCodedBufferType,
1201 codedbuf_size, 1, NULL, &gl_surfaces[i].coded_buf);
1202 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1205 /* create OpenGL objects */
1206 //glGenFramebuffers(SURFACE_NUM, fbos);
1208 for (i = 0; i < SURFACE_NUM; i++) {
1210 gl_surfaces[i].y_tex = resource_pool->create_2d_texture(GL_R8, 1, 1);
1211 gl_surfaces[i].cbcr_tex = resource_pool->create_2d_texture(GL_RG8, 1, 1);
1213 gl_surfaces[i].y_tex = resource_pool->create_2d_texture(GL_R8, frame_width, frame_height);
1214 gl_surfaces[i].cbcr_tex = resource_pool->create_2d_texture(GL_RG8, frame_width / 2, frame_height / 2);
1216 // Generate a PBO to read into. It doesn't necessarily fit 1:1 with the VA-API
1217 // buffers, due to potentially differing pitch.
1218 glGenBuffers(1, &gl_surfaces[i].pbo);
1219 glBindBuffer(GL_PIXEL_PACK_BUFFER, gl_surfaces[i].pbo);
1220 glBufferStorage(GL_PIXEL_PACK_BUFFER, frame_width * frame_height * 2, nullptr, GL_MAP_READ_BIT | GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT);
1221 uint8_t *ptr = (uint8_t *)glMapBufferRange(GL_PIXEL_PACK_BUFFER, 0, frame_width * frame_height * 2, GL_MAP_READ_BIT | GL_MAP_PERSISTENT_BIT);
1222 gl_surfaces[i].y_offset = 0;
1223 gl_surfaces[i].cbcr_offset = frame_width * frame_height;
1224 gl_surfaces[i].y_ptr = ptr + gl_surfaces[i].y_offset;
1225 gl_surfaces[i].cbcr_ptr = ptr + gl_surfaces[i].cbcr_offset;
1226 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1230 for (i = 0; i < SURFACE_NUM; i++) {
1231 gl_surfaces[i].src_surface = src_surface[i];
1232 gl_surfaces[i].ref_surface = ref_surface[i];
1238 // Given a list like 1 9 3 0 2 8 4 and a pivot element 3, will produce
1241 template<class T, class C>
1242 static void sort_two(T *begin, T *end, const T &pivot, const C &less_than)
1244 T *middle = partition(begin, end, [&](const T &elem) { return less_than(elem, pivot); });
1245 sort(begin, middle, [&](const T &a, const T &b) { return less_than(b, a); });
1246 sort(middle, end, less_than);
1249 void QuickSyncEncoderImpl::update_ReferenceFrames(int frame_type)
1253 if (frame_type == FRAME_B)
1256 CurrentCurrPic.flags = VA_PICTURE_H264_SHORT_TERM_REFERENCE;
1258 if (numShortTerm > num_ref_frames)
1259 numShortTerm = num_ref_frames;
1260 for (i=numShortTerm-1; i>0; i--)
1261 ReferenceFrames[i] = ReferenceFrames[i-1];
1262 ReferenceFrames[0] = CurrentCurrPic;
1264 current_frame_num++;
1265 if (current_frame_num > MaxFrameNum)
1266 current_frame_num = 0;
1270 int QuickSyncEncoderImpl::update_RefPicList(int frame_type)
1272 const auto descending_by_frame_idx = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1273 return a.frame_idx > b.frame_idx;
1275 const auto ascending_by_top_field_order_cnt = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1276 return a.TopFieldOrderCnt < b.TopFieldOrderCnt;
1278 const auto descending_by_top_field_order_cnt = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1279 return a.TopFieldOrderCnt > b.TopFieldOrderCnt;
1282 if (frame_type == FRAME_P) {
1283 memcpy(RefPicList0_P, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1284 sort(&RefPicList0_P[0], &RefPicList0_P[numShortTerm], descending_by_frame_idx);
1285 } else if (frame_type == FRAME_B) {
1286 memcpy(RefPicList0_B, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1287 sort_two(&RefPicList0_B[0], &RefPicList0_B[numShortTerm], CurrentCurrPic, ascending_by_top_field_order_cnt);
1289 memcpy(RefPicList1_B, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1290 sort_two(&RefPicList1_B[0], &RefPicList1_B[numShortTerm], CurrentCurrPic, descending_by_top_field_order_cnt);
1297 int QuickSyncEncoderImpl::render_sequence()
1299 VABufferID seq_param_buf, rc_param_buf, render_id[2];
1301 VAEncMiscParameterBuffer *misc_param;
1302 VAEncMiscParameterRateControl *misc_rate_ctrl;
1304 seq_param.level_idc = 41 /*SH_LEVEL_3*/;
1305 seq_param.picture_width_in_mbs = frame_width_mbaligned / 16;
1306 seq_param.picture_height_in_mbs = frame_height_mbaligned / 16;
1307 seq_param.bits_per_second = frame_bitrate;
1309 seq_param.intra_period = intra_period;
1310 seq_param.intra_idr_period = intra_idr_period;
1311 seq_param.ip_period = ip_period;
1313 seq_param.max_num_ref_frames = num_ref_frames;
1314 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1315 seq_param.time_scale = TIMEBASE * 2;
1316 seq_param.num_units_in_tick = 1; /* Tc = num_units_in_tick / scale */
1317 seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 = Log2MaxPicOrderCntLsb - 4;
1318 seq_param.seq_fields.bits.log2_max_frame_num_minus4 = Log2MaxFrameNum - 4;;
1319 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1320 seq_param.seq_fields.bits.chroma_format_idc = 1;
1321 seq_param.seq_fields.bits.direct_8x8_inference_flag = 1;
1323 if (frame_width != frame_width_mbaligned ||
1324 frame_height != frame_height_mbaligned) {
1325 seq_param.frame_cropping_flag = 1;
1326 seq_param.frame_crop_left_offset = 0;
1327 seq_param.frame_crop_right_offset = (frame_width_mbaligned - frame_width)/2;
1328 seq_param.frame_crop_top_offset = 0;
1329 seq_param.frame_crop_bottom_offset = (frame_height_mbaligned - frame_height)/2;
1332 va_status = vaCreateBuffer(va_dpy, context_id,
1333 VAEncSequenceParameterBufferType,
1334 sizeof(seq_param), 1, &seq_param, &seq_param_buf);
1335 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1337 va_status = vaCreateBuffer(va_dpy, context_id,
1338 VAEncMiscParameterBufferType,
1339 sizeof(VAEncMiscParameterBuffer) + sizeof(VAEncMiscParameterRateControl),
1340 1, NULL, &rc_param_buf);
1341 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1343 vaMapBuffer(va_dpy, rc_param_buf, (void **)&misc_param);
1344 misc_param->type = VAEncMiscParameterTypeRateControl;
1345 misc_rate_ctrl = (VAEncMiscParameterRateControl *)misc_param->data;
1346 memset(misc_rate_ctrl, 0, sizeof(*misc_rate_ctrl));
1347 misc_rate_ctrl->bits_per_second = frame_bitrate;
1348 misc_rate_ctrl->target_percentage = 66;
1349 misc_rate_ctrl->window_size = 1000;
1350 misc_rate_ctrl->initial_qp = initial_qp;
1351 misc_rate_ctrl->min_qp = minimal_qp;
1352 misc_rate_ctrl->basic_unit_size = 0;
1353 vaUnmapBuffer(va_dpy, rc_param_buf);
1355 render_id[0] = seq_param_buf;
1356 render_id[1] = rc_param_buf;
1358 render_picture_and_delete(va_dpy, context_id, &render_id[0], 2);
1363 static int calc_poc(int pic_order_cnt_lsb, int frame_type)
1365 static int PicOrderCntMsb_ref = 0, pic_order_cnt_lsb_ref = 0;
1366 int prevPicOrderCntMsb, prevPicOrderCntLsb;
1367 int PicOrderCntMsb, TopFieldOrderCnt;
1369 if (frame_type == FRAME_IDR)
1370 prevPicOrderCntMsb = prevPicOrderCntLsb = 0;
1372 prevPicOrderCntMsb = PicOrderCntMsb_ref;
1373 prevPicOrderCntLsb = pic_order_cnt_lsb_ref;
1376 if ((pic_order_cnt_lsb < prevPicOrderCntLsb) &&
1377 ((prevPicOrderCntLsb - pic_order_cnt_lsb) >= (int)(MaxPicOrderCntLsb / 2)))
1378 PicOrderCntMsb = prevPicOrderCntMsb + MaxPicOrderCntLsb;
1379 else if ((pic_order_cnt_lsb > prevPicOrderCntLsb) &&
1380 ((pic_order_cnt_lsb - prevPicOrderCntLsb) > (int)(MaxPicOrderCntLsb / 2)))
1381 PicOrderCntMsb = prevPicOrderCntMsb - MaxPicOrderCntLsb;
1383 PicOrderCntMsb = prevPicOrderCntMsb;
1385 TopFieldOrderCnt = PicOrderCntMsb + pic_order_cnt_lsb;
1387 if (frame_type != FRAME_B) {
1388 PicOrderCntMsb_ref = PicOrderCntMsb;
1389 pic_order_cnt_lsb_ref = pic_order_cnt_lsb;
1392 return TopFieldOrderCnt;
1395 int QuickSyncEncoderImpl::render_picture(int frame_type, int display_frame_num, int gop_start_display_frame_num)
1397 VABufferID pic_param_buf;
1401 pic_param.CurrPic.picture_id = gl_surfaces[display_frame_num % SURFACE_NUM].ref_surface;
1402 pic_param.CurrPic.frame_idx = current_frame_num;
1403 pic_param.CurrPic.flags = 0;
1404 pic_param.CurrPic.TopFieldOrderCnt = calc_poc((display_frame_num - gop_start_display_frame_num) % MaxPicOrderCntLsb, frame_type);
1405 pic_param.CurrPic.BottomFieldOrderCnt = pic_param.CurrPic.TopFieldOrderCnt;
1406 CurrentCurrPic = pic_param.CurrPic;
1408 memcpy(pic_param.ReferenceFrames, ReferenceFrames, numShortTerm*sizeof(VAPictureH264));
1409 for (i = numShortTerm; i < MAX_NUM_REF1; i++) {
1410 pic_param.ReferenceFrames[i].picture_id = VA_INVALID_SURFACE;
1411 pic_param.ReferenceFrames[i].flags = VA_PICTURE_H264_INVALID;
1414 pic_param.pic_fields.bits.idr_pic_flag = (frame_type == FRAME_IDR);
1415 pic_param.pic_fields.bits.reference_pic_flag = (frame_type != FRAME_B);
1416 pic_param.pic_fields.bits.entropy_coding_mode_flag = h264_entropy_mode;
1417 pic_param.pic_fields.bits.deblocking_filter_control_present_flag = 1;
1418 pic_param.frame_num = current_frame_num;
1419 pic_param.coded_buf = gl_surfaces[display_frame_num % SURFACE_NUM].coded_buf;
1420 pic_param.last_picture = false; // FIXME
1421 pic_param.pic_init_qp = initial_qp;
1423 va_status = vaCreateBuffer(va_dpy, context_id, VAEncPictureParameterBufferType,
1424 sizeof(pic_param), 1, &pic_param, &pic_param_buf);
1425 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1427 render_picture_and_delete(va_dpy, context_id, &pic_param_buf, 1);
1432 int QuickSyncEncoderImpl::render_packedsequence()
1434 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1435 VABufferID packedseq_para_bufid, packedseq_data_bufid, render_id[2];
1436 unsigned int length_in_bits;
1437 unsigned char *packedseq_buffer = NULL;
1440 length_in_bits = build_packed_seq_buffer(&packedseq_buffer);
1442 packedheader_param_buffer.type = VAEncPackedHeaderSequence;
1444 packedheader_param_buffer.bit_length = length_in_bits; /*length_in_bits*/
1445 packedheader_param_buffer.has_emulation_bytes = 0;
1446 va_status = vaCreateBuffer(va_dpy,
1448 VAEncPackedHeaderParameterBufferType,
1449 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1450 &packedseq_para_bufid);
1451 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1453 va_status = vaCreateBuffer(va_dpy,
1455 VAEncPackedHeaderDataBufferType,
1456 (length_in_bits + 7) / 8, 1, packedseq_buffer,
1457 &packedseq_data_bufid);
1458 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1460 render_id[0] = packedseq_para_bufid;
1461 render_id[1] = packedseq_data_bufid;
1462 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1464 free(packedseq_buffer);
1470 int QuickSyncEncoderImpl::render_packedpicture()
1472 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1473 VABufferID packedpic_para_bufid, packedpic_data_bufid, render_id[2];
1474 unsigned int length_in_bits;
1475 unsigned char *packedpic_buffer = NULL;
1478 length_in_bits = build_packed_pic_buffer(&packedpic_buffer);
1479 packedheader_param_buffer.type = VAEncPackedHeaderPicture;
1480 packedheader_param_buffer.bit_length = length_in_bits;
1481 packedheader_param_buffer.has_emulation_bytes = 0;
1483 va_status = vaCreateBuffer(va_dpy,
1485 VAEncPackedHeaderParameterBufferType,
1486 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1487 &packedpic_para_bufid);
1488 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1490 va_status = vaCreateBuffer(va_dpy,
1492 VAEncPackedHeaderDataBufferType,
1493 (length_in_bits + 7) / 8, 1, packedpic_buffer,
1494 &packedpic_data_bufid);
1495 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1497 render_id[0] = packedpic_para_bufid;
1498 render_id[1] = packedpic_data_bufid;
1499 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1501 free(packedpic_buffer);
1506 void QuickSyncEncoderImpl::render_packedslice()
1508 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1509 VABufferID packedslice_para_bufid, packedslice_data_bufid, render_id[2];
1510 unsigned int length_in_bits;
1511 unsigned char *packedslice_buffer = NULL;
1514 length_in_bits = build_packed_slice_buffer(&packedslice_buffer);
1515 packedheader_param_buffer.type = VAEncPackedHeaderSlice;
1516 packedheader_param_buffer.bit_length = length_in_bits;
1517 packedheader_param_buffer.has_emulation_bytes = 0;
1519 va_status = vaCreateBuffer(va_dpy,
1521 VAEncPackedHeaderParameterBufferType,
1522 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1523 &packedslice_para_bufid);
1524 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1526 va_status = vaCreateBuffer(va_dpy,
1528 VAEncPackedHeaderDataBufferType,
1529 (length_in_bits + 7) / 8, 1, packedslice_buffer,
1530 &packedslice_data_bufid);
1531 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1533 render_id[0] = packedslice_para_bufid;
1534 render_id[1] = packedslice_data_bufid;
1535 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1537 free(packedslice_buffer);
1540 int QuickSyncEncoderImpl::render_slice(int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num, int frame_type)
1542 VABufferID slice_param_buf;
1546 update_RefPicList(frame_type);
1548 /* one frame, one slice */
1549 slice_param.macroblock_address = 0;
1550 slice_param.num_macroblocks = frame_width_mbaligned * frame_height_mbaligned/(16*16); /* Measured by MB */
1551 slice_param.slice_type = (frame_type == FRAME_IDR)?2:frame_type;
1552 if (frame_type == FRAME_IDR) {
1553 if (encoding_frame_num != 0)
1554 ++slice_param.idr_pic_id;
1555 } else if (frame_type == FRAME_P) {
1556 int refpiclist0_max = h264_maxref & 0xffff;
1557 memcpy(slice_param.RefPicList0, RefPicList0_P, refpiclist0_max*sizeof(VAPictureH264));
1559 for (i = refpiclist0_max; i < MAX_NUM_REF2; i++) {
1560 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1561 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1563 } else if (frame_type == FRAME_B) {
1564 int refpiclist0_max = h264_maxref & 0xffff;
1565 int refpiclist1_max = (h264_maxref >> 16) & 0xffff;
1567 memcpy(slice_param.RefPicList0, RefPicList0_B, refpiclist0_max*sizeof(VAPictureH264));
1568 for (i = refpiclist0_max; i < MAX_NUM_REF2; i++) {
1569 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1570 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1573 memcpy(slice_param.RefPicList1, RefPicList1_B, refpiclist1_max*sizeof(VAPictureH264));
1574 for (i = refpiclist1_max; i < MAX_NUM_REF2; i++) {
1575 slice_param.RefPicList1[i].picture_id = VA_INVALID_SURFACE;
1576 slice_param.RefPicList1[i].flags = VA_PICTURE_H264_INVALID;
1580 slice_param.slice_alpha_c0_offset_div2 = 0;
1581 slice_param.slice_beta_offset_div2 = 0;
1582 slice_param.direct_spatial_mv_pred_flag = 1;
1583 slice_param.pic_order_cnt_lsb = (display_frame_num - gop_start_display_frame_num) % MaxPicOrderCntLsb;
1586 if (h264_packedheader &&
1587 config_attrib[enc_packed_header_idx].value & VA_ENC_PACKED_HEADER_SLICE)
1588 render_packedslice();
1590 va_status = vaCreateBuffer(va_dpy, context_id, VAEncSliceParameterBufferType,
1591 sizeof(slice_param), 1, &slice_param, &slice_param_buf);
1592 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1594 render_picture_and_delete(va_dpy, context_id, &slice_param_buf, 1);
1601 void QuickSyncEncoderImpl::save_codeddata(storage_task task)
1603 VACodedBufferSegment *buf_list = NULL;
1608 va_status = vaMapBuffer(va_dpy, gl_surfaces[task.display_order % SURFACE_NUM].coded_buf, (void **)(&buf_list));
1609 CHECK_VASTATUS(va_status, "vaMapBuffer");
1610 while (buf_list != NULL) {
1611 data.append(reinterpret_cast<const char *>(buf_list->buf), buf_list->size);
1612 buf_list = (VACodedBufferSegment *) buf_list->next;
1614 vaUnmapBuffer(va_dpy, gl_surfaces[task.display_order % SURFACE_NUM].coded_buf);
1619 memset(&pkt, 0, sizeof(pkt));
1621 pkt.data = reinterpret_cast<uint8_t *>(&data[0]);
1622 pkt.size = data.size();
1623 pkt.stream_index = 0;
1624 if (task.frame_type == FRAME_IDR) {
1625 pkt.flags = AV_PKT_FLAG_KEY;
1629 pkt.duration = task.duration;
1631 file_mux->add_packet(pkt, task.pts + global_delay(), task.dts + global_delay());
1633 if (!global_flags.uncompressed_video_to_http &&
1634 !global_flags.x264_video_to_http) {
1635 stream_mux->add_packet(pkt, task.pts + global_delay(), task.dts + global_delay());
1641 // this is weird. but it seems to put a new frame onto the queue
1642 void QuickSyncEncoderImpl::storage_task_enqueue(storage_task task)
1644 unique_lock<mutex> lock(storage_task_queue_mutex);
1645 storage_task_queue.push(move(task));
1646 storage_task_queue_changed.notify_all();
1649 void QuickSyncEncoderImpl::storage_task_thread()
1652 storage_task current;
1654 // wait until there's an encoded frame
1655 unique_lock<mutex> lock(storage_task_queue_mutex);
1656 storage_task_queue_changed.wait(lock, [this]{ return storage_thread_should_quit || !storage_task_queue.empty(); });
1657 if (storage_thread_should_quit && storage_task_queue.empty()) return;
1658 current = move(storage_task_queue.front());
1659 storage_task_queue.pop();
1664 // waits for data, then saves it to disk.
1665 va_status = vaSyncSurface(va_dpy, gl_surfaces[current.display_order % SURFACE_NUM].src_surface);
1666 CHECK_VASTATUS(va_status, "vaSyncSurface");
1667 save_codeddata(move(current));
1670 unique_lock<mutex> lock(storage_task_queue_mutex);
1671 srcsurface_status[current.display_order % SURFACE_NUM] = SRC_SURFACE_FREE;
1672 storage_task_queue_changed.notify_all();
1677 void QuickSyncEncoderImpl::release_encode()
1679 for (unsigned i = 0; i < SURFACE_NUM; i++) {
1680 vaDestroyBuffer(va_dpy, gl_surfaces[i].coded_buf);
1681 vaDestroySurfaces(va_dpy, &gl_surfaces[i].src_surface, 1);
1682 vaDestroySurfaces(va_dpy, &gl_surfaces[i].ref_surface, 1);
1685 vaDestroyContext(va_dpy, context_id);
1686 vaDestroyConfig(va_dpy, config_id);
1689 void QuickSyncEncoderImpl::release_gl_resources()
1691 assert(is_shutdown);
1692 if (has_released_gl_resources) {
1696 for (unsigned i = 0; i < SURFACE_NUM; i++) {
1697 if (!use_zerocopy) {
1698 glBindBuffer(GL_PIXEL_PACK_BUFFER, gl_surfaces[i].pbo);
1699 glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
1700 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1701 glDeleteBuffers(1, &gl_surfaces[i].pbo);
1703 resource_pool->release_2d_texture(gl_surfaces[i].y_tex);
1704 resource_pool->release_2d_texture(gl_surfaces[i].cbcr_tex);
1707 has_released_gl_resources = true;
1710 int QuickSyncEncoderImpl::deinit_va()
1712 vaTerminate(va_dpy);
1714 va_close_display(va_dpy);
1723 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)
1724 : current_storage_frame(0), resource_pool(resource_pool), surface(surface), x264_encoder(x264_encoder), frame_width(width), frame_height(height)
1726 file_audio_encoder.reset(new AudioEncoder(AUDIO_OUTPUT_CODEC_NAME, DEFAULT_AUDIO_OUTPUT_BIT_RATE, oformat));
1727 open_output_file(filename);
1728 file_audio_encoder->add_mux(file_mux.get());
1730 frame_width_mbaligned = (frame_width + 15) & (~15);
1731 frame_height_mbaligned = (frame_height + 15) & (~15);
1735 if (global_flags.uncompressed_video_to_http ||
1736 global_flags.x264_video_to_http) {
1737 reorderer.reset(new FrameReorderer(ip_period - 1, frame_width, frame_height));
1739 if (global_flags.x264_video_to_http) {
1740 assert(x264_encoder != nullptr);
1742 assert(x264_encoder == nullptr);
1745 init_va(va_display);
1748 // No frames are ready yet.
1749 memset(srcsurface_status, SRC_SURFACE_FREE, sizeof(srcsurface_status));
1751 memset(&seq_param, 0, sizeof(seq_param));
1752 memset(&pic_param, 0, sizeof(pic_param));
1753 memset(&slice_param, 0, sizeof(slice_param));
1755 storage_thread = thread(&QuickSyncEncoderImpl::storage_task_thread, this);
1757 encode_thread = thread([this]{
1758 //SDL_GL_MakeCurrent(window, context);
1759 QOpenGLContext *context = create_context(this->surface);
1760 eglBindAPI(EGL_OPENGL_API);
1761 if (!make_current(context, this->surface)) {
1762 printf("display=%p surface=%p context=%p curr=%p err=%d\n", eglGetCurrentDisplay(), this->surface, context, eglGetCurrentContext(),
1766 encode_thread_func();
1767 delete_context(context);
1771 QuickSyncEncoderImpl::~QuickSyncEncoderImpl()
1774 release_gl_resources();
1777 bool QuickSyncEncoderImpl::begin_frame(GLuint *y_tex, GLuint *cbcr_tex)
1779 assert(!is_shutdown);
1781 // Wait until this frame slot is done encoding.
1782 unique_lock<mutex> lock(storage_task_queue_mutex);
1783 if (srcsurface_status[current_storage_frame % SURFACE_NUM] != SRC_SURFACE_FREE) {
1784 fprintf(stderr, "Warning: Slot %d (for frame %d) is still encoding, rendering has to wait for H.264 encoder\n",
1785 current_storage_frame % SURFACE_NUM, current_storage_frame);
1787 storage_task_queue_changed.wait(lock, [this]{ return storage_thread_should_quit || (srcsurface_status[current_storage_frame % SURFACE_NUM] == SRC_SURFACE_FREE); });
1788 srcsurface_status[current_storage_frame % SURFACE_NUM] = SRC_SURFACE_IN_ENCODING;
1789 if (storage_thread_should_quit) return false;
1792 //*fbo = fbos[current_storage_frame % SURFACE_NUM];
1793 GLSurface *surf = &gl_surfaces[current_storage_frame % SURFACE_NUM];
1794 *y_tex = surf->y_tex;
1795 *cbcr_tex = surf->cbcr_tex;
1797 VAStatus va_status = vaDeriveImage(va_dpy, surf->src_surface, &surf->surface_image);
1798 CHECK_VASTATUS(va_status, "vaDeriveImage");
1801 VABufferInfo buf_info;
1802 buf_info.mem_type = VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME; // or VA_SURFACE_ATTRIB_MEM_TYPE_KERNEL_DRM?
1803 va_status = vaAcquireBufferHandle(va_dpy, surf->surface_image.buf, &buf_info);
1804 CHECK_VASTATUS(va_status, "vaAcquireBufferHandle");
1807 surf->y_egl_image = EGL_NO_IMAGE_KHR;
1808 EGLint y_attribs[] = {
1809 EGL_WIDTH, frame_width,
1810 EGL_HEIGHT, frame_height,
1811 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('R', '8', ' ', ' '),
1812 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
1813 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[0]),
1814 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[0]),
1818 surf->y_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, y_attribs);
1819 assert(surf->y_egl_image != EGL_NO_IMAGE_KHR);
1821 // Associate Y image to a texture.
1822 glBindTexture(GL_TEXTURE_2D, *y_tex);
1823 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->y_egl_image);
1825 // Create CbCr image.
1826 surf->cbcr_egl_image = EGL_NO_IMAGE_KHR;
1827 EGLint cbcr_attribs[] = {
1828 EGL_WIDTH, frame_width,
1829 EGL_HEIGHT, frame_height,
1830 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('G', 'R', '8', '8'),
1831 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
1832 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[1]),
1833 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[1]),
1837 surf->cbcr_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, cbcr_attribs);
1838 assert(surf->cbcr_egl_image != EGL_NO_IMAGE_KHR);
1840 // Associate CbCr image to a texture.
1841 glBindTexture(GL_TEXTURE_2D, *cbcr_tex);
1842 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->cbcr_egl_image);
1848 void QuickSyncEncoderImpl::add_audio(int64_t pts, vector<float> audio)
1850 assert(!is_shutdown);
1851 file_audio_encoder->encode_audio(audio, pts + global_delay());
1854 RefCountedGLsync QuickSyncEncoderImpl::end_frame(int64_t pts, int64_t duration, const vector<RefCountedFrame> &input_frames)
1856 assert(!is_shutdown);
1858 if (!use_zerocopy) {
1859 GLSurface *surf = &gl_surfaces[current_storage_frame % SURFACE_NUM];
1861 glPixelStorei(GL_PACK_ROW_LENGTH, 0);
1864 glBindBuffer(GL_PIXEL_PACK_BUFFER, surf->pbo);
1867 glBindTexture(GL_TEXTURE_2D, surf->y_tex);
1869 glGetTexImage(GL_TEXTURE_2D, 0, GL_RED, GL_UNSIGNED_BYTE, BUFFER_OFFSET(surf->y_offset));
1872 glBindTexture(GL_TEXTURE_2D, surf->cbcr_tex);
1874 glGetTexImage(GL_TEXTURE_2D, 0, GL_RG, GL_UNSIGNED_BYTE, BUFFER_OFFSET(surf->cbcr_offset));
1877 glBindTexture(GL_TEXTURE_2D, 0);
1879 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1882 glMemoryBarrier(GL_TEXTURE_UPDATE_BARRIER_BIT | GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT);
1886 RefCountedGLsync fence = RefCountedGLsync(GL_SYNC_GPU_COMMANDS_COMPLETE, /*flags=*/0);
1888 glFlush(); // Make the H.264 thread see the fence as soon as possible.
1892 unique_lock<mutex> lock(frame_queue_mutex);
1893 pending_video_frames[current_storage_frame] = PendingFrame{ fence, input_frames, pts, duration };
1894 ++current_storage_frame;
1896 frame_queue_nonempty.notify_all();
1900 void QuickSyncEncoderImpl::shutdown()
1907 unique_lock<mutex> lock(frame_queue_mutex);
1908 encode_thread_should_quit = true;
1909 frame_queue_nonempty.notify_all();
1911 encode_thread.join();
1913 unique_lock<mutex> lock(storage_task_queue_mutex);
1914 storage_thread_should_quit = true;
1915 frame_queue_nonempty.notify_all();
1916 storage_task_queue_changed.notify_all();
1918 storage_thread.join();
1920 // Encode any leftover audio in the queues, and also any delayed frames.
1921 file_audio_encoder->encode_last_audio();
1929 void QuickSyncEncoderImpl::open_output_file(const std::string &filename)
1931 AVFormatContext *avctx = avformat_alloc_context();
1932 avctx->oformat = av_guess_format(NULL, filename.c_str(), NULL);
1933 assert(filename.size() < sizeof(avctx->filename) - 1);
1934 strcpy(avctx->filename, filename.c_str());
1936 string url = "file:" + filename;
1937 int ret = avio_open2(&avctx->pb, url.c_str(), AVIO_FLAG_WRITE, &avctx->interrupt_callback, NULL);
1939 char tmp[AV_ERROR_MAX_STRING_SIZE];
1940 fprintf(stderr, "%s: avio_open2() failed: %s\n", filename.c_str(), av_make_error_string(tmp, sizeof(tmp), ret));
1944 string video_extradata = ""; // FIXME: See other comment about global headers.
1945 file_mux.reset(new Mux(avctx, frame_width, frame_height, Mux::CODEC_H264, video_extradata, file_audio_encoder->get_ctx(), TIMEBASE, nullptr));
1948 void QuickSyncEncoderImpl::encode_thread_func()
1950 int64_t last_dts = -1;
1951 int gop_start_display_frame_num = 0;
1952 for (int encoding_frame_num = 0; ; ++encoding_frame_num) {
1955 int frame_type, display_frame_num;
1956 encoding2display_order(encoding_frame_num, intra_period, intra_idr_period, ip_period,
1957 &display_frame_num, &frame_type, &pts_lag);
1958 if (frame_type == FRAME_IDR) {
1960 current_frame_num = 0;
1961 gop_start_display_frame_num = display_frame_num;
1965 unique_lock<mutex> lock(frame_queue_mutex);
1966 frame_queue_nonempty.wait(lock, [this, display_frame_num]{
1967 return encode_thread_should_quit || pending_video_frames.count(display_frame_num) != 0;
1969 if (encode_thread_should_quit && pending_video_frames.count(display_frame_num) == 0) {
1970 // We have queued frames that were supposed to be B-frames,
1971 // but will be no P-frame to encode them against. Encode them all
1972 // as P-frames instead. Note that this happens under the mutex,
1973 // but nobody else uses it at this point, since we're shutting down,
1974 // so there's no contention.
1975 encode_remaining_frames_as_p(encoding_frame_num, gop_start_display_frame_num, last_dts);
1978 frame = move(pending_video_frames[display_frame_num]);
1979 pending_video_frames.erase(display_frame_num);
1983 // Determine the dts of this frame.
1985 if (pts_lag == -1) {
1986 assert(last_dts != -1);
1987 dts = last_dts + (TIMEBASE / MAX_FPS);
1989 dts = frame.pts - pts_lag;
1993 encode_frame(frame, encoding_frame_num, display_frame_num, gop_start_display_frame_num, frame_type, frame.pts, dts, frame.duration);
1997 void QuickSyncEncoderImpl::encode_remaining_frames_as_p(int encoding_frame_num, int gop_start_display_frame_num, int64_t last_dts)
1999 if (pending_video_frames.empty()) {
2003 for (auto &pending_frame : pending_video_frames) {
2004 int display_frame_num = pending_frame.first;
2005 assert(display_frame_num > 0);
2006 PendingFrame frame = move(pending_frame.second);
2007 int64_t dts = last_dts + (TIMEBASE / MAX_FPS);
2008 printf("Finalizing encode: Encoding leftover frame %d as P-frame instead of B-frame.\n", display_frame_num);
2009 encode_frame(frame, encoding_frame_num++, display_frame_num, gop_start_display_frame_num, FRAME_P, frame.pts, dts, frame.duration);
2013 if (global_flags.uncompressed_video_to_http ||
2014 global_flags.x264_video_to_http) {
2015 // Add frames left in reorderer.
2016 while (!reorderer->empty()) {
2017 FrameReorderer::Frame output_frame = reorderer->get_first_frame();
2018 if (global_flags.uncompressed_video_to_http) {
2019 add_packet_for_uncompressed_frame(output_frame.pts, output_frame.duration, output_frame.data);
2021 assert(global_flags.x264_video_to_http);
2022 x264_encoder->add_frame(output_frame.pts, output_frame.duration, output_frame.data);
2028 void QuickSyncEncoderImpl::add_packet_for_uncompressed_frame(int64_t pts, int64_t duration, const uint8_t *data)
2031 memset(&pkt, 0, sizeof(pkt));
2033 pkt.data = const_cast<uint8_t *>(data);
2034 pkt.size = frame_width * frame_height * 2;
2035 pkt.stream_index = 0;
2036 pkt.flags = AV_PKT_FLAG_KEY;
2037 pkt.duration = duration;
2038 stream_mux->add_packet(pkt, pts, pts);
2043 void memcpy_with_pitch(uint8_t *dst, const uint8_t *src, size_t src_width, size_t dst_pitch, size_t height)
2045 if (src_width == dst_pitch) {
2046 memcpy(dst, src, src_width * height);
2048 for (size_t y = 0; y < height; ++y) {
2049 const uint8_t *sptr = src + y * src_width;
2050 uint8_t *dptr = dst + y * dst_pitch;
2051 memcpy(dptr, sptr, src_width);
2058 void QuickSyncEncoderImpl::encode_frame(QuickSyncEncoderImpl::PendingFrame frame, int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num,
2059 int frame_type, int64_t pts, int64_t dts, int64_t duration)
2061 // Wait for the GPU to be done with the frame.
2064 sync_status = glClientWaitSync(frame.fence.get(), 0, 1000000000);
2066 } while (sync_status == GL_TIMEOUT_EXPIRED);
2067 assert(sync_status != GL_WAIT_FAILED);
2069 // Release back any input frames we needed to render this frame.
2070 frame.input_frames.clear();
2072 GLSurface *surf = &gl_surfaces[display_frame_num % SURFACE_NUM];
2076 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->y_egl_image);
2077 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->cbcr_egl_image);
2078 va_status = vaReleaseBufferHandle(va_dpy, surf->surface_image.buf);
2079 CHECK_VASTATUS(va_status, "vaReleaseBufferHandle");
2081 unsigned char *surface_p = nullptr;
2082 vaMapBuffer(va_dpy, surf->surface_image.buf, (void **)&surface_p);
2084 unsigned char *va_y_ptr = (unsigned char *)surface_p + surf->surface_image.offsets[0];
2085 memcpy_with_pitch(va_y_ptr, surf->y_ptr, frame_width, surf->surface_image.pitches[0], frame_height);
2087 unsigned char *va_cbcr_ptr = (unsigned char *)surface_p + surf->surface_image.offsets[1];
2088 memcpy_with_pitch(va_cbcr_ptr, surf->cbcr_ptr, (frame_width / 2) * sizeof(uint16_t), surf->surface_image.pitches[1], frame_height / 2);
2090 va_status = vaUnmapBuffer(va_dpy, surf->surface_image.buf);
2091 CHECK_VASTATUS(va_status, "vaUnmapBuffer");
2093 if (global_flags.uncompressed_video_to_http ||
2094 global_flags.x264_video_to_http) {
2095 // Add uncompressed video. (Note that pts == dts here.)
2096 // Delay needs to match audio.
2097 FrameReorderer::Frame output_frame = reorderer->reorder_frame(pts + global_delay(), duration, reinterpret_cast<uint8_t *>(surf->y_ptr));
2098 if (output_frame.data != nullptr) {
2099 if (global_flags.uncompressed_video_to_http) {
2100 add_packet_for_uncompressed_frame(output_frame.pts, output_frame.duration, output_frame.data);
2102 assert(global_flags.x264_video_to_http);
2103 x264_encoder->add_frame(output_frame.pts, output_frame.duration, output_frame.data);
2109 va_status = vaDestroyImage(va_dpy, surf->surface_image.image_id);
2110 CHECK_VASTATUS(va_status, "vaDestroyImage");
2112 // Schedule the frame for encoding.
2113 VASurfaceID va_surface = surf->src_surface;
2114 va_status = vaBeginPicture(va_dpy, context_id, va_surface);
2115 CHECK_VASTATUS(va_status, "vaBeginPicture");
2117 if (frame_type == FRAME_IDR) {
2118 // FIXME: If the mux wants global headers, we should not put the
2119 // SPS/PPS before each IDR frame, but rather put it into the
2120 // codec extradata (formatted differently?).
2122 render_picture(frame_type, display_frame_num, gop_start_display_frame_num);
2123 if (h264_packedheader) {
2124 render_packedsequence();
2125 render_packedpicture();
2128 //render_sequence();
2129 render_picture(frame_type, display_frame_num, gop_start_display_frame_num);
2131 render_slice(encoding_frame_num, display_frame_num, gop_start_display_frame_num, frame_type);
2133 va_status = vaEndPicture(va_dpy, context_id);
2134 CHECK_VASTATUS(va_status, "vaEndPicture");
2136 // so now the data is done encoding (well, async job kicked off)...
2137 // we send that to the storage thread
2139 tmp.display_order = display_frame_num;
2140 tmp.frame_type = frame_type;
2143 tmp.duration = duration;
2144 storage_task_enqueue(move(tmp));
2146 update_ReferenceFrames(frame_type);
2150 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)
2151 : impl(new QuickSyncEncoderImpl(filename, resource_pool, surface, va_display, width, height, oformat, x264_encoder)) {}
2153 // Must be defined here because unique_ptr<> destructor needs to know the impl.
2154 QuickSyncEncoder::~QuickSyncEncoder() {}
2156 void QuickSyncEncoder::add_audio(int64_t pts, vector<float> audio)
2158 impl->add_audio(pts, audio);
2161 bool QuickSyncEncoder::begin_frame(GLuint *y_tex, GLuint *cbcr_tex)
2163 return impl->begin_frame(y_tex, cbcr_tex);
2166 RefCountedGLsync QuickSyncEncoder::end_frame(int64_t pts, int64_t duration, const vector<RefCountedFrame> &input_frames)
2168 return impl->end_frame(pts, duration, input_frames);
2171 void QuickSyncEncoder::shutdown()
2176 void QuickSyncEncoder::set_stream_mux(Mux *mux)
2178 impl->set_stream_mux(mux);
2181 int64_t QuickSyncEncoder::global_delay() const {
2182 return impl->global_delay();