2 #include "h264encode.h"
4 #include <EGL/eglplatform.h>
10 #include <libavcodec/avcodec.h>
11 #include <libavformat/avformat.h>
12 #include <libavutil/channel_layout.h>
13 #include <libavutil/frame.h>
14 #include <libavutil/rational.h>
15 #include <libavutil/samplefmt.h>
17 #include <libdrm/drm_fourcc.h>
22 #include <va/va_drmcommon.h>
23 #include <va/va_enc_h264.h>
24 #include <va/va_x11.h>
26 #include <condition_variable>
46 #define CHECK_VASTATUS(va_status, func) \
47 if (va_status != VA_STATUS_SUCCESS) { \
48 fprintf(stderr, "%s:%d (%s) failed with %d\n", __func__, __LINE__, func, va_status); \
52 //#include "loadsurface.h"
54 #define NAL_REF_IDC_NONE 0
55 #define NAL_REF_IDC_LOW 1
56 #define NAL_REF_IDC_MEDIUM 2
57 #define NAL_REF_IDC_HIGH 3
65 #define SLICE_TYPE_P 0
66 #define SLICE_TYPE_B 1
67 #define SLICE_TYPE_I 2
68 #define IS_P_SLICE(type) (SLICE_TYPE_P == (type))
69 #define IS_B_SLICE(type) (SLICE_TYPE_B == (type))
70 #define IS_I_SLICE(type) (SLICE_TYPE_I == (type))
73 #define ENTROPY_MODE_CAVLC 0
74 #define ENTROPY_MODE_CABAC 1
76 #define PROFILE_IDC_BASELINE 66
77 #define PROFILE_IDC_MAIN 77
78 #define PROFILE_IDC_HIGH 100
80 #define BITSTREAM_ALLOCATE_STEPPING 4096
81 #define SURFACE_NUM 16 /* 16 surfaces for source YUV */
83 static constexpr unsigned int MaxFrameNum = (2<<16);
84 static constexpr unsigned int MaxPicOrderCntLsb = (2<<8);
85 static constexpr unsigned int Log2MaxFrameNum = 16;
86 static constexpr unsigned int Log2MaxPicOrderCntLsb = 8;
87 static constexpr int rc_default_modes[] = { // Priority list of modes.
90 VA_RC_VBR_CONSTRAINED,
96 /* thread to save coded data */
97 #define SRC_SURFACE_FREE 0
98 #define SRC_SURFACE_IN_ENCODING 1
101 unsigned int *buffer;
103 int max_size_in_dword;
105 typedef struct __bitstream bitstream;
109 class H264EncoderImpl {
111 H264EncoderImpl(QSurface *surface, int width, int height, HTTPD *httpd);
113 void add_audio(int64_t pts, vector<float> audio);
114 bool begin_frame(GLuint *y_tex, GLuint *cbcr_tex);
115 void end_frame(RefCountedGLsync fence, int64_t pts, const vector<RefCountedFrame> &input_frames);
119 struct storage_task {
120 unsigned long long display_order;
125 struct PendingFrame {
126 RefCountedGLsync fence;
127 vector<RefCountedFrame> input_frames;
131 void encode_thread_func();
132 void encode_remaining_frames_as_p(int encoding_frame_num, int gop_start_display_frame_num, int64_t last_dts);
133 void encode_frame(PendingFrame frame, int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num,
134 int frame_type, int64_t pts, int64_t dts);
135 void storage_task_thread();
136 void storage_task_enqueue(storage_task task);
137 void save_codeddata(storage_task task);
138 int render_packedsequence();
139 int render_packedpicture();
140 void render_packedslice();
141 int render_sequence();
142 int render_picture(int frame_type, int display_frame_num, int gop_start_display_frame_num);
143 void sps_rbsp(bitstream *bs);
144 void pps_rbsp(bitstream *bs);
145 int build_packed_pic_buffer(unsigned char **header_buffer);
146 int render_slice(int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num, int frame_type);
147 void slice_header(bitstream *bs);
148 int build_packed_seq_buffer(unsigned char **header_buffer);
149 int build_packed_slice_buffer(unsigned char **header_buffer);
152 VADisplay va_open_display(void);
153 void va_close_display(VADisplay va_dpy);
155 int release_encode();
156 void update_ReferenceFrames(int frame_type);
157 int update_RefPicList(int frame_type);
159 bool is_shutdown = false;
161 thread encode_thread, storage_thread;
163 mutex storage_task_queue_mutex;
164 condition_variable storage_task_queue_changed;
165 int srcsurface_status[SURFACE_NUM]; // protected by storage_task_queue_mutex
166 queue<storage_task> storage_task_queue; // protected by storage_task_queue_mutex
167 bool storage_thread_should_quit = false; // protected by storage_task_queue_mutex
169 mutex frame_queue_mutex;
170 condition_variable frame_queue_nonempty;
171 bool encode_thread_should_quit = false; // under frame_queue_mutex
173 int current_storage_frame;
175 map<int, PendingFrame> pending_video_frames; // under frame_queue_mutex
176 map<int64_t, vector<float>> pending_audio_frames; // under frame_queue_mutex
179 AVCodecContext *context_audio;
182 Display *x11_display;
185 // Encoder parameters
187 VAProfile h264_profile = (VAProfile)~0;
188 VAConfigAttrib config_attrib[VAConfigAttribTypeMax];
189 int config_attrib_num = 0, enc_packed_header_idx;
192 VASurfaceID src_surface, ref_surface;
193 VABufferID coded_buf;
195 VAImage surface_image;
196 GLuint y_tex, cbcr_tex;
197 EGLImage y_egl_image, cbcr_egl_image;
199 GLSurface gl_surfaces[SURFACE_NUM];
201 VAConfigID config_id;
202 VAContextID context_id;
203 VAEncSequenceParameterBufferH264 seq_param;
204 VAEncPictureParameterBufferH264 pic_param;
205 VAEncSliceParameterBufferH264 slice_param;
206 VAPictureH264 CurrentCurrPic;
207 VAPictureH264 ReferenceFrames[16], RefPicList0_P[32], RefPicList0_B[32], RefPicList1_B[32];
209 // Static quality settings.
210 static constexpr unsigned int frame_bitrate = 15000000 / 60; // Doesn't really matter; only initial_qp does.
211 static constexpr unsigned int num_ref_frames = 2;
212 static constexpr int initial_qp = 15;
213 static constexpr int minimal_qp = 0;
214 static constexpr int intra_period = 30;
215 static constexpr int intra_idr_period = MAX_FPS; // About a second; more at lower frame rates. Not ideal.
217 // Quality settings that are meant to be static, but might be overridden
219 int constraint_set_flag = 0;
220 int h264_packedheader = 0; /* support pack header? */
221 int h264_maxref = (1<<16|1);
222 int h264_entropy_mode = 1; /* cabac */
226 unsigned int current_frame_num = 0;
227 unsigned int numShortTerm = 0;
231 int frame_width_mbaligned;
232 int frame_height_mbaligned;
235 // Supposedly vaRenderPicture() is supposed to destroy the buffer implicitly,
236 // but if we don't delete it here, we get leaks. The GStreamer implementation
238 static void render_picture_and_delete(VADisplay dpy, VAContextID context, VABufferID *buffers, int num_buffers)
240 VAStatus va_status = vaRenderPicture(dpy, context, buffers, num_buffers);
241 CHECK_VASTATUS(va_status, "vaRenderPicture");
243 for (int i = 0; i < num_buffers; ++i) {
244 va_status = vaDestroyBuffer(dpy, buffers[i]);
245 CHECK_VASTATUS(va_status, "vaDestroyBuffer");
250 va_swap32(unsigned int val)
252 unsigned char *pval = (unsigned char *)&val;
254 return ((pval[0] << 24) |
261 bitstream_start(bitstream *bs)
263 bs->max_size_in_dword = BITSTREAM_ALLOCATE_STEPPING;
264 bs->buffer = (unsigned int *)calloc(bs->max_size_in_dword * sizeof(int), 1);
269 bitstream_end(bitstream *bs)
271 int pos = (bs->bit_offset >> 5);
272 int bit_offset = (bs->bit_offset & 0x1f);
273 int bit_left = 32 - bit_offset;
276 bs->buffer[pos] = va_swap32((bs->buffer[pos] << bit_left));
281 bitstream_put_ui(bitstream *bs, unsigned int val, int size_in_bits)
283 int pos = (bs->bit_offset >> 5);
284 int bit_offset = (bs->bit_offset & 0x1f);
285 int bit_left = 32 - bit_offset;
290 bs->bit_offset += size_in_bits;
292 if (bit_left > size_in_bits) {
293 bs->buffer[pos] = (bs->buffer[pos] << size_in_bits | val);
295 size_in_bits -= bit_left;
296 if (bit_left >= 32) {
297 bs->buffer[pos] = (val >> size_in_bits);
299 bs->buffer[pos] = (bs->buffer[pos] << bit_left) | (val >> size_in_bits);
301 bs->buffer[pos] = va_swap32(bs->buffer[pos]);
303 if (pos + 1 == bs->max_size_in_dword) {
304 bs->max_size_in_dword += BITSTREAM_ALLOCATE_STEPPING;
305 bs->buffer = (unsigned int *)realloc(bs->buffer, bs->max_size_in_dword * sizeof(unsigned int));
308 bs->buffer[pos + 1] = val;
313 bitstream_put_ue(bitstream *bs, unsigned int val)
315 int size_in_bits = 0;
323 bitstream_put_ui(bs, 0, size_in_bits - 1); // leading zero
324 bitstream_put_ui(bs, val, size_in_bits);
328 bitstream_put_se(bitstream *bs, int val)
330 unsigned int new_val;
335 new_val = 2 * val - 1;
337 bitstream_put_ue(bs, new_val);
341 bitstream_byte_aligning(bitstream *bs, int bit)
343 int bit_offset = (bs->bit_offset & 0x7);
344 int bit_left = 8 - bit_offset;
350 assert(bit == 0 || bit == 1);
353 new_val = (1 << bit_left) - 1;
357 bitstream_put_ui(bs, new_val, bit_left);
361 rbsp_trailing_bits(bitstream *bs)
363 bitstream_put_ui(bs, 1, 1);
364 bitstream_byte_aligning(bs, 0);
367 static void nal_start_code_prefix(bitstream *bs)
369 bitstream_put_ui(bs, 0x00000001, 32);
372 static void nal_header(bitstream *bs, int nal_ref_idc, int nal_unit_type)
374 bitstream_put_ui(bs, 0, 1); /* forbidden_zero_bit: 0 */
375 bitstream_put_ui(bs, nal_ref_idc, 2);
376 bitstream_put_ui(bs, nal_unit_type, 5);
379 void H264EncoderImpl::sps_rbsp(bitstream *bs)
381 int profile_idc = PROFILE_IDC_BASELINE;
383 if (h264_profile == VAProfileH264High)
384 profile_idc = PROFILE_IDC_HIGH;
385 else if (h264_profile == VAProfileH264Main)
386 profile_idc = PROFILE_IDC_MAIN;
388 bitstream_put_ui(bs, profile_idc, 8); /* profile_idc */
389 bitstream_put_ui(bs, !!(constraint_set_flag & 1), 1); /* constraint_set0_flag */
390 bitstream_put_ui(bs, !!(constraint_set_flag & 2), 1); /* constraint_set1_flag */
391 bitstream_put_ui(bs, !!(constraint_set_flag & 4), 1); /* constraint_set2_flag */
392 bitstream_put_ui(bs, !!(constraint_set_flag & 8), 1); /* constraint_set3_flag */
393 bitstream_put_ui(bs, 0, 4); /* reserved_zero_4bits */
394 bitstream_put_ui(bs, seq_param.level_idc, 8); /* level_idc */
395 bitstream_put_ue(bs, seq_param.seq_parameter_set_id); /* seq_parameter_set_id */
397 if ( profile_idc == PROFILE_IDC_HIGH) {
398 bitstream_put_ue(bs, 1); /* chroma_format_idc = 1, 4:2:0 */
399 bitstream_put_ue(bs, 0); /* bit_depth_luma_minus8 */
400 bitstream_put_ue(bs, 0); /* bit_depth_chroma_minus8 */
401 bitstream_put_ui(bs, 0, 1); /* qpprime_y_zero_transform_bypass_flag */
402 bitstream_put_ui(bs, 0, 1); /* seq_scaling_matrix_present_flag */
405 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_frame_num_minus4); /* log2_max_frame_num_minus4 */
406 bitstream_put_ue(bs, seq_param.seq_fields.bits.pic_order_cnt_type); /* pic_order_cnt_type */
408 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0)
409 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4); /* log2_max_pic_order_cnt_lsb_minus4 */
414 bitstream_put_ue(bs, seq_param.max_num_ref_frames); /* num_ref_frames */
415 bitstream_put_ui(bs, 0, 1); /* gaps_in_frame_num_value_allowed_flag */
417 bitstream_put_ue(bs, seq_param.picture_width_in_mbs - 1); /* pic_width_in_mbs_minus1 */
418 bitstream_put_ue(bs, seq_param.picture_height_in_mbs - 1); /* pic_height_in_map_units_minus1 */
419 bitstream_put_ui(bs, seq_param.seq_fields.bits.frame_mbs_only_flag, 1); /* frame_mbs_only_flag */
421 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
425 bitstream_put_ui(bs, seq_param.seq_fields.bits.direct_8x8_inference_flag, 1); /* direct_8x8_inference_flag */
426 bitstream_put_ui(bs, seq_param.frame_cropping_flag, 1); /* frame_cropping_flag */
428 if (seq_param.frame_cropping_flag) {
429 bitstream_put_ue(bs, seq_param.frame_crop_left_offset); /* frame_crop_left_offset */
430 bitstream_put_ue(bs, seq_param.frame_crop_right_offset); /* frame_crop_right_offset */
431 bitstream_put_ue(bs, seq_param.frame_crop_top_offset); /* frame_crop_top_offset */
432 bitstream_put_ue(bs, seq_param.frame_crop_bottom_offset); /* frame_crop_bottom_offset */
435 //if ( frame_bit_rate < 0 ) { //TODO EW: the vui header isn't correct
437 bitstream_put_ui(bs, 0, 1); /* vui_parameters_present_flag */
439 bitstream_put_ui(bs, 1, 1); /* vui_parameters_present_flag */
440 bitstream_put_ui(bs, 0, 1); /* aspect_ratio_info_present_flag */
441 bitstream_put_ui(bs, 0, 1); /* overscan_info_present_flag */
442 bitstream_put_ui(bs, 1, 1); /* video_signal_type_present_flag */
444 bitstream_put_ui(bs, 5, 3); /* video_format (5 = Unspecified) */
445 bitstream_put_ui(bs, 0, 1); /* video_full_range_flag */
446 bitstream_put_ui(bs, 1, 1); /* colour_description_present_flag */
448 bitstream_put_ui(bs, 1, 8); /* colour_primaries (1 = BT.709) */
449 bitstream_put_ui(bs, 2, 8); /* transfer_characteristics (2 = unspecified, since we use sRGB) */
450 bitstream_put_ui(bs, 6, 8); /* matrix_coefficients (6 = BT.601/SMPTE 170M) */
453 bitstream_put_ui(bs, 0, 1); /* chroma_loc_info_present_flag */
454 bitstream_put_ui(bs, 1, 1); /* timing_info_present_flag */
456 bitstream_put_ui(bs, 1, 32); // FPS
457 bitstream_put_ui(bs, TIMEBASE * 2, 32); // FPS
458 bitstream_put_ui(bs, 1, 1);
460 bitstream_put_ui(bs, 1, 1); /* nal_hrd_parameters_present_flag */
463 bitstream_put_ue(bs, 0); /* cpb_cnt_minus1 */
464 bitstream_put_ui(bs, 4, 4); /* bit_rate_scale */
465 bitstream_put_ui(bs, 6, 4); /* cpb_size_scale */
467 bitstream_put_ue(bs, frame_bitrate - 1); /* bit_rate_value_minus1[0] */
468 bitstream_put_ue(bs, frame_bitrate*8 - 1); /* cpb_size_value_minus1[0] */
469 bitstream_put_ui(bs, 1, 1); /* cbr_flag[0] */
471 bitstream_put_ui(bs, 23, 5); /* initial_cpb_removal_delay_length_minus1 */
472 bitstream_put_ui(bs, 23, 5); /* cpb_removal_delay_length_minus1 */
473 bitstream_put_ui(bs, 23, 5); /* dpb_output_delay_length_minus1 */
474 bitstream_put_ui(bs, 23, 5); /* time_offset_length */
476 bitstream_put_ui(bs, 0, 1); /* vcl_hrd_parameters_present_flag */
477 bitstream_put_ui(bs, 0, 1); /* low_delay_hrd_flag */
479 bitstream_put_ui(bs, 0, 1); /* pic_struct_present_flag */
480 bitstream_put_ui(bs, 0, 1); /* bitstream_restriction_flag */
483 rbsp_trailing_bits(bs); /* rbsp_trailing_bits */
487 void H264EncoderImpl::pps_rbsp(bitstream *bs)
489 bitstream_put_ue(bs, pic_param.pic_parameter_set_id); /* pic_parameter_set_id */
490 bitstream_put_ue(bs, pic_param.seq_parameter_set_id); /* seq_parameter_set_id */
492 bitstream_put_ui(bs, pic_param.pic_fields.bits.entropy_coding_mode_flag, 1); /* entropy_coding_mode_flag */
494 bitstream_put_ui(bs, 0, 1); /* pic_order_present_flag: 0 */
496 bitstream_put_ue(bs, 0); /* num_slice_groups_minus1 */
498 bitstream_put_ue(bs, pic_param.num_ref_idx_l0_active_minus1); /* num_ref_idx_l0_active_minus1 */
499 bitstream_put_ue(bs, pic_param.num_ref_idx_l1_active_minus1); /* num_ref_idx_l1_active_minus1 1 */
501 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_pred_flag, 1); /* weighted_pred_flag: 0 */
502 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_bipred_idc, 2); /* weighted_bipred_idc: 0 */
504 bitstream_put_se(bs, pic_param.pic_init_qp - 26); /* pic_init_qp_minus26 */
505 bitstream_put_se(bs, 0); /* pic_init_qs_minus26 */
506 bitstream_put_se(bs, 0); /* chroma_qp_index_offset */
508 bitstream_put_ui(bs, pic_param.pic_fields.bits.deblocking_filter_control_present_flag, 1); /* deblocking_filter_control_present_flag */
509 bitstream_put_ui(bs, 0, 1); /* constrained_intra_pred_flag */
510 bitstream_put_ui(bs, 0, 1); /* redundant_pic_cnt_present_flag */
513 bitstream_put_ui(bs, pic_param.pic_fields.bits.transform_8x8_mode_flag, 1); /*transform_8x8_mode_flag */
514 bitstream_put_ui(bs, 0, 1); /* pic_scaling_matrix_present_flag */
515 bitstream_put_se(bs, pic_param.second_chroma_qp_index_offset ); /*second_chroma_qp_index_offset */
517 rbsp_trailing_bits(bs);
520 void H264EncoderImpl::slice_header(bitstream *bs)
522 int first_mb_in_slice = slice_param.macroblock_address;
524 bitstream_put_ue(bs, first_mb_in_slice); /* first_mb_in_slice: 0 */
525 bitstream_put_ue(bs, slice_param.slice_type); /* slice_type */
526 bitstream_put_ue(bs, slice_param.pic_parameter_set_id); /* pic_parameter_set_id: 0 */
527 bitstream_put_ui(bs, pic_param.frame_num, seq_param.seq_fields.bits.log2_max_frame_num_minus4 + 4); /* frame_num */
529 /* frame_mbs_only_flag == 1 */
530 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
535 if (pic_param.pic_fields.bits.idr_pic_flag)
536 bitstream_put_ue(bs, slice_param.idr_pic_id); /* idr_pic_id: 0 */
538 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0) {
539 bitstream_put_ui(bs, pic_param.CurrPic.TopFieldOrderCnt, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 + 4);
540 /* pic_order_present_flag == 0 */
546 /* redundant_pic_cnt_present_flag == 0 */
548 if (IS_P_SLICE(slice_param.slice_type)) {
549 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
551 if (slice_param.num_ref_idx_active_override_flag)
552 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
554 /* ref_pic_list_reordering */
555 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
556 } else if (IS_B_SLICE(slice_param.slice_type)) {
557 bitstream_put_ui(bs, slice_param.direct_spatial_mv_pred_flag, 1); /* direct_spatial_mv_pred: 1 */
559 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
561 if (slice_param.num_ref_idx_active_override_flag) {
562 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
563 bitstream_put_ue(bs, slice_param.num_ref_idx_l1_active_minus1);
566 /* ref_pic_list_reordering */
567 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
568 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l1: 0 */
571 if ((pic_param.pic_fields.bits.weighted_pred_flag &&
572 IS_P_SLICE(slice_param.slice_type)) ||
573 ((pic_param.pic_fields.bits.weighted_bipred_idc == 1) &&
574 IS_B_SLICE(slice_param.slice_type))) {
575 /* FIXME: fill weight/offset table */
579 /* dec_ref_pic_marking */
580 if (pic_param.pic_fields.bits.reference_pic_flag) { /* nal_ref_idc != 0 */
581 unsigned char no_output_of_prior_pics_flag = 0;
582 unsigned char long_term_reference_flag = 0;
583 unsigned char adaptive_ref_pic_marking_mode_flag = 0;
585 if (pic_param.pic_fields.bits.idr_pic_flag) {
586 bitstream_put_ui(bs, no_output_of_prior_pics_flag, 1); /* no_output_of_prior_pics_flag: 0 */
587 bitstream_put_ui(bs, long_term_reference_flag, 1); /* long_term_reference_flag: 0 */
589 bitstream_put_ui(bs, adaptive_ref_pic_marking_mode_flag, 1); /* adaptive_ref_pic_marking_mode_flag: 0 */
593 if (pic_param.pic_fields.bits.entropy_coding_mode_flag &&
594 !IS_I_SLICE(slice_param.slice_type))
595 bitstream_put_ue(bs, slice_param.cabac_init_idc); /* cabac_init_idc: 0 */
597 bitstream_put_se(bs, slice_param.slice_qp_delta); /* slice_qp_delta: 0 */
599 /* ignore for SP/SI */
601 if (pic_param.pic_fields.bits.deblocking_filter_control_present_flag) {
602 bitstream_put_ue(bs, slice_param.disable_deblocking_filter_idc); /* disable_deblocking_filter_idc: 0 */
604 if (slice_param.disable_deblocking_filter_idc != 1) {
605 bitstream_put_se(bs, slice_param.slice_alpha_c0_offset_div2); /* slice_alpha_c0_offset_div2: 2 */
606 bitstream_put_se(bs, slice_param.slice_beta_offset_div2); /* slice_beta_offset_div2: 2 */
610 if (pic_param.pic_fields.bits.entropy_coding_mode_flag) {
611 bitstream_byte_aligning(bs, 1);
615 int H264EncoderImpl::build_packed_pic_buffer(unsigned char **header_buffer)
619 bitstream_start(&bs);
620 nal_start_code_prefix(&bs);
621 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_PPS);
625 *header_buffer = (unsigned char *)bs.buffer;
626 return bs.bit_offset;
630 H264EncoderImpl::build_packed_seq_buffer(unsigned char **header_buffer)
634 bitstream_start(&bs);
635 nal_start_code_prefix(&bs);
636 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_SPS);
640 *header_buffer = (unsigned char *)bs.buffer;
641 return bs.bit_offset;
644 int H264EncoderImpl::build_packed_slice_buffer(unsigned char **header_buffer)
647 int is_idr = !!pic_param.pic_fields.bits.idr_pic_flag;
648 int is_ref = !!pic_param.pic_fields.bits.reference_pic_flag;
650 bitstream_start(&bs);
651 nal_start_code_prefix(&bs);
653 if (IS_I_SLICE(slice_param.slice_type)) {
654 nal_header(&bs, NAL_REF_IDC_HIGH, is_idr ? NAL_IDR : NAL_NON_IDR);
655 } else if (IS_P_SLICE(slice_param.slice_type)) {
656 nal_header(&bs, NAL_REF_IDC_MEDIUM, NAL_NON_IDR);
658 assert(IS_B_SLICE(slice_param.slice_type));
659 nal_header(&bs, is_ref ? NAL_REF_IDC_LOW : NAL_REF_IDC_NONE, NAL_NON_IDR);
665 *header_buffer = (unsigned char *)bs.buffer;
666 return bs.bit_offset;
671 Assume frame sequence is: Frame#0, #1, #2, ..., #M, ..., #X, ... (encoding order)
672 1) period between Frame #X and Frame #N = #X - #N
673 2) 0 means infinite for intra_period/intra_idr_period, and 0 is invalid for ip_period
674 3) intra_idr_period % intra_period (intra_period > 0) and intra_period % ip_period must be 0
675 4) intra_period and intra_idr_period take precedence over ip_period
676 5) if ip_period > 1, intra_period and intra_idr_period are not the strict periods
677 of I/IDR frames, see bellow examples
678 -------------------------------------------------------------------
679 intra_period intra_idr_period ip_period frame sequence (intra_period/intra_idr_period/ip_period)
680 0 ignored 1 IDRPPPPPPP ... (No IDR/I any more)
681 0 ignored >=2 IDR(PBB)(PBB)... (No IDR/I any more)
682 1 0 ignored IDRIIIIIII... (No IDR any more)
683 1 1 ignored IDR IDR IDR IDR...
684 1 >=2 ignored IDRII IDRII IDR... (1/3/ignore)
685 >=2 0 1 IDRPPP IPPP I... (3/0/1)
686 >=2 0 >=2 IDR(PBB)(PBB)(IBB) (6/0/3)
687 (PBB)(IBB)(PBB)(IBB)...
688 >=2 >=2 1 IDRPPPPP IPPPPP IPPPPP (6/18/1)
689 IDRPPPPP IPPPPP IPPPPP...
690 >=2 >=2 >=2 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)} (6/18/3)
691 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)}...
692 {IDR(PBB)(PBB)(IBB)(PBB)} (6/12/3)
693 {IDR(PBB)(PBB)(IBB)(PBB)}...
694 {IDR(PBB)(PBB)} (6/6/3)
698 // General pts/dts strategy:
700 // Getting pts and dts right with variable frame rate (VFR) and B-frames can be a
701 // bit tricky. We assume first of all that the frame rate never goes _above_
702 // MAX_FPS, which gives us a frame period N. The decoder can always decode
703 // in at least this speed, as long at dts <= pts (the frame is not attempted
704 // presented before it is decoded). Furthermore, we never have longer chains of
705 // B-frames than a fixed constant C. (In a B-frame chain, we say that the base
706 // I/P-frame has order O=0, the B-frame depending on it directly has order O=1,
707 // etc. The last frame in the chain, which no B-frames depend on, is the “tip”
708 // frame, with an order O <= C.)
710 // Many strategies are possible, but we establish these rules:
712 // - Tip frames have dts = pts - (C-O)*N.
713 // - Non-tip frames have dts = dts_last + N.
715 // An example, with C=2 and N=10 and the data flow showed with arrows:
718 // pts: 30 40 50 60 70 80
720 // dts: 10 30 20 60 50←40
725 // To show that this works fine also with irregular spacings, let's say that
726 // the third frame is delayed a bit (something earlier was dropped). Now the
727 // situation looks like this:
730 // pts: 30 40 80 90 100 110
732 // dts: 10 30 20 90 50←40
737 // The resetting on every tip frame makes sure dts never ends up lagging a lot
738 // behind pts, and the subtraction of (C-O)*N makes sure pts <= dts.
740 // In the output of this function, if <dts_lag> is >= 0, it means to reset the
741 // dts from the current pts minus <dts_lag>, while if it's -1, the frame is not
742 // a tip frame and should be given a dts based on the previous one.
747 void encoding2display_order(
748 int encoding_order, int intra_period,
749 int intra_idr_period, int ip_period,
750 int *displaying_order,
751 int *frame_type, int *pts_lag)
753 int encoding_order_gop = 0;
757 if (intra_period == 1) { /* all are I/IDR frames */
758 *displaying_order = encoding_order;
759 if (intra_idr_period == 0)
760 *frame_type = (encoding_order == 0)?FRAME_IDR:FRAME_I;
762 *frame_type = (encoding_order % intra_idr_period == 0)?FRAME_IDR:FRAME_I;
766 if (intra_period == 0)
767 intra_idr_period = 0;
769 if (ip_period == 1) {
770 // No B-frames, sequence is like IDR PPPPP IPPPPP.
771 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % intra_idr_period);
772 *displaying_order = encoding_order;
774 if (encoding_order_gop == 0) { /* the first frame */
775 *frame_type = FRAME_IDR;
776 } else if (intra_period != 0 && /* have I frames */
777 encoding_order_gop >= 2 &&
778 (encoding_order_gop % intra_period == 0)) {
779 *frame_type = FRAME_I;
781 *frame_type = FRAME_P;
786 // We have B-frames. Sequence is like IDR (PBB)(PBB)(IBB)(PBB).
787 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % (intra_idr_period + 1));
788 *pts_lag = -1; // Most frames are not tip frames.
790 if (encoding_order_gop == 0) { /* the first frame */
791 *frame_type = FRAME_IDR;
792 *displaying_order = encoding_order;
793 // IDR frames are a special case; I honestly can't find the logic behind
794 // why this is the right thing, but it seems to line up nicely in practice :-)
795 *pts_lag = TIMEBASE / MAX_FPS;
796 } else if (((encoding_order_gop - 1) % ip_period) != 0) { /* B frames */
797 *frame_type = FRAME_B;
798 *displaying_order = encoding_order - 1;
799 if ((encoding_order_gop % ip_period) == 0) {
800 *pts_lag = 0; // Last B-frame.
802 } else if (intra_period != 0 && /* have I frames */
803 encoding_order_gop >= 2 &&
804 ((encoding_order_gop - 1) / ip_period % (intra_period / ip_period)) == 0) {
805 *frame_type = FRAME_I;
806 *displaying_order = encoding_order + ip_period - 1;
808 *frame_type = FRAME_P;
809 *displaying_order = encoding_order + ip_period - 1;
814 static const char *rc_to_string(int rc_mode)
827 case VA_RC_VBR_CONSTRAINED:
828 return "VBR_CONSTRAINED";
834 VADisplay H264EncoderImpl::va_open_display(void)
836 x11_display = XOpenDisplay(NULL);
838 fprintf(stderr, "error: can't connect to X server!\n");
841 return vaGetDisplay(x11_display);
844 void H264EncoderImpl::va_close_display(VADisplay va_dpy)
850 XUnmapWindow(x11_display, x11_window);
851 XDestroyWindow(x11_display, x11_window);
854 XCloseDisplay(x11_display);
858 int H264EncoderImpl::init_va()
860 VAProfile profile_list[]={VAProfileH264High, VAProfileH264Main, VAProfileH264Baseline, VAProfileH264ConstrainedBaseline};
861 VAEntrypoint *entrypoints;
862 int num_entrypoints, slice_entrypoint;
863 int support_encode = 0;
864 int major_ver, minor_ver;
868 va_dpy = va_open_display();
869 va_status = vaInitialize(va_dpy, &major_ver, &minor_ver);
870 CHECK_VASTATUS(va_status, "vaInitialize");
872 num_entrypoints = vaMaxNumEntrypoints(va_dpy);
873 entrypoints = (VAEntrypoint *)malloc(num_entrypoints * sizeof(*entrypoints));
875 fprintf(stderr, "error: failed to initialize VA entrypoints array\n");
879 /* use the highest profile */
880 for (i = 0; i < sizeof(profile_list)/sizeof(profile_list[0]); i++) {
881 if ((h264_profile != ~0) && h264_profile != profile_list[i])
884 h264_profile = profile_list[i];
885 vaQueryConfigEntrypoints(va_dpy, h264_profile, entrypoints, &num_entrypoints);
886 for (slice_entrypoint = 0; slice_entrypoint < num_entrypoints; slice_entrypoint++) {
887 if (entrypoints[slice_entrypoint] == VAEntrypointEncSlice) {
892 if (support_encode == 1)
896 if (support_encode == 0) {
897 printf("Can't find VAEntrypointEncSlice for H264 profiles\n");
900 switch (h264_profile) {
901 case VAProfileH264Baseline:
903 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
904 h264_entropy_mode = 0;
906 case VAProfileH264ConstrainedBaseline:
907 constraint_set_flag |= (1 << 0 | 1 << 1); /* Annex A.2.2 */
911 case VAProfileH264Main:
912 constraint_set_flag |= (1 << 1); /* Annex A.2.2 */
915 case VAProfileH264High:
916 constraint_set_flag |= (1 << 3); /* Annex A.2.4 */
919 h264_profile = VAProfileH264Baseline;
921 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
926 VAConfigAttrib attrib[VAConfigAttribTypeMax];
928 /* find out the format for the render target, and rate control mode */
929 for (i = 0; i < VAConfigAttribTypeMax; i++)
930 attrib[i].type = (VAConfigAttribType)i;
932 va_status = vaGetConfigAttributes(va_dpy, h264_profile, VAEntrypointEncSlice,
933 &attrib[0], VAConfigAttribTypeMax);
934 CHECK_VASTATUS(va_status, "vaGetConfigAttributes");
935 /* check the interested configattrib */
936 if ((attrib[VAConfigAttribRTFormat].value & VA_RT_FORMAT_YUV420) == 0) {
937 printf("Not find desired YUV420 RT format\n");
940 config_attrib[config_attrib_num].type = VAConfigAttribRTFormat;
941 config_attrib[config_attrib_num].value = VA_RT_FORMAT_YUV420;
945 if (attrib[VAConfigAttribRateControl].value != VA_ATTRIB_NOT_SUPPORTED) {
946 int tmp = attrib[VAConfigAttribRateControl].value;
948 if (rc_mode == -1 || !(rc_mode & tmp)) {
950 printf("Warning: Don't support the specified RateControl mode: %s!!!, switch to ", rc_to_string(rc_mode));
953 for (i = 0; i < sizeof(rc_default_modes) / sizeof(rc_default_modes[0]); i++) {
954 if (rc_default_modes[i] & tmp) {
955 rc_mode = rc_default_modes[i];
961 config_attrib[config_attrib_num].type = VAConfigAttribRateControl;
962 config_attrib[config_attrib_num].value = rc_mode;
967 if (attrib[VAConfigAttribEncPackedHeaders].value != VA_ATTRIB_NOT_SUPPORTED) {
968 int tmp = attrib[VAConfigAttribEncPackedHeaders].value;
970 h264_packedheader = 1;
971 config_attrib[config_attrib_num].type = VAConfigAttribEncPackedHeaders;
972 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
974 if (tmp & VA_ENC_PACKED_HEADER_SEQUENCE) {
975 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SEQUENCE;
978 if (tmp & VA_ENC_PACKED_HEADER_PICTURE) {
979 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_PICTURE;
982 if (tmp & VA_ENC_PACKED_HEADER_SLICE) {
983 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SLICE;
986 if (tmp & VA_ENC_PACKED_HEADER_MISC) {
987 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_MISC;
990 enc_packed_header_idx = config_attrib_num;
994 if (attrib[VAConfigAttribEncInterlaced].value != VA_ATTRIB_NOT_SUPPORTED) {
995 config_attrib[config_attrib_num].type = VAConfigAttribEncInterlaced;
996 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
1000 if (attrib[VAConfigAttribEncMaxRefFrames].value != VA_ATTRIB_NOT_SUPPORTED) {
1001 h264_maxref = attrib[VAConfigAttribEncMaxRefFrames].value;
1008 int H264EncoderImpl::setup_encode()
1011 VASurfaceID *tmp_surfaceid;
1012 int codedbuf_size, i;
1013 static VASurfaceID src_surface[SURFACE_NUM];
1014 static VASurfaceID ref_surface[SURFACE_NUM];
1016 va_status = vaCreateConfig(va_dpy, h264_profile, VAEntrypointEncSlice,
1017 &config_attrib[0], config_attrib_num, &config_id);
1018 CHECK_VASTATUS(va_status, "vaCreateConfig");
1020 /* create source surfaces */
1021 va_status = vaCreateSurfaces(va_dpy,
1022 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
1023 &src_surface[0], SURFACE_NUM,
1025 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
1027 /* create reference surfaces */
1028 va_status = vaCreateSurfaces(va_dpy,
1029 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
1030 &ref_surface[0], SURFACE_NUM,
1032 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
1034 tmp_surfaceid = (VASurfaceID *)calloc(2 * SURFACE_NUM, sizeof(VASurfaceID));
1035 memcpy(tmp_surfaceid, src_surface, SURFACE_NUM * sizeof(VASurfaceID));
1036 memcpy(tmp_surfaceid + SURFACE_NUM, ref_surface, SURFACE_NUM * sizeof(VASurfaceID));
1038 /* Create a context for this encode pipe */
1039 va_status = vaCreateContext(va_dpy, config_id,
1040 frame_width_mbaligned, frame_height_mbaligned,
1042 tmp_surfaceid, 2 * SURFACE_NUM,
1044 CHECK_VASTATUS(va_status, "vaCreateContext");
1045 free(tmp_surfaceid);
1047 codedbuf_size = (frame_width_mbaligned * frame_height_mbaligned * 400) / (16*16);
1049 for (i = 0; i < SURFACE_NUM; i++) {
1050 /* create coded buffer once for all
1051 * other VA buffers which won't be used again after vaRenderPicture.
1052 * so APP can always vaCreateBuffer for every frame
1053 * but coded buffer need to be mapped and accessed after vaRenderPicture/vaEndPicture
1054 * so VA won't maintain the coded buffer
1056 va_status = vaCreateBuffer(va_dpy, context_id, VAEncCodedBufferType,
1057 codedbuf_size, 1, NULL, &gl_surfaces[i].coded_buf);
1058 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1061 /* create OpenGL objects */
1062 //glGenFramebuffers(SURFACE_NUM, fbos);
1064 for (i = 0; i < SURFACE_NUM; i++) {
1065 glGenTextures(1, &gl_surfaces[i].y_tex);
1066 glGenTextures(1, &gl_surfaces[i].cbcr_tex);
1069 for (i = 0; i < SURFACE_NUM; i++) {
1070 gl_surfaces[i].src_surface = src_surface[i];
1071 gl_surfaces[i].ref_surface = ref_surface[i];
1077 // Given a list like 1 9 3 0 2 8 4 and a pivot element 3, will produce
1080 template<class T, class C>
1081 static void sort_two(T *begin, T *end, const T &pivot, const C &less_than)
1083 T *middle = partition(begin, end, [&](const T &elem) { return less_than(elem, pivot); });
1084 sort(begin, middle, [&](const T &a, const T &b) { return less_than(b, a); });
1085 sort(middle, end, less_than);
1088 void H264EncoderImpl::update_ReferenceFrames(int frame_type)
1092 if (frame_type == FRAME_B)
1095 CurrentCurrPic.flags = VA_PICTURE_H264_SHORT_TERM_REFERENCE;
1097 if (numShortTerm > num_ref_frames)
1098 numShortTerm = num_ref_frames;
1099 for (i=numShortTerm-1; i>0; i--)
1100 ReferenceFrames[i] = ReferenceFrames[i-1];
1101 ReferenceFrames[0] = CurrentCurrPic;
1103 current_frame_num++;
1104 if (current_frame_num > MaxFrameNum)
1105 current_frame_num = 0;
1109 int H264EncoderImpl::update_RefPicList(int frame_type)
1111 const auto descending_by_frame_idx = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1112 return a.frame_idx > b.frame_idx;
1114 const auto ascending_by_top_field_order_cnt = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1115 return a.TopFieldOrderCnt < b.TopFieldOrderCnt;
1117 const auto descending_by_top_field_order_cnt = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1118 return a.TopFieldOrderCnt > b.TopFieldOrderCnt;
1121 if (frame_type == FRAME_P) {
1122 memcpy(RefPicList0_P, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1123 sort(&RefPicList0_P[0], &RefPicList0_P[numShortTerm], descending_by_frame_idx);
1124 } else if (frame_type == FRAME_B) {
1125 memcpy(RefPicList0_B, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1126 sort_two(&RefPicList0_B[0], &RefPicList0_B[numShortTerm], CurrentCurrPic, ascending_by_top_field_order_cnt);
1128 memcpy(RefPicList1_B, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1129 sort_two(&RefPicList1_B[0], &RefPicList1_B[numShortTerm], CurrentCurrPic, descending_by_top_field_order_cnt);
1136 int H264EncoderImpl::render_sequence()
1138 VABufferID seq_param_buf, rc_param_buf, render_id[2];
1140 VAEncMiscParameterBuffer *misc_param;
1141 VAEncMiscParameterRateControl *misc_rate_ctrl;
1143 seq_param.level_idc = 41 /*SH_LEVEL_3*/;
1144 seq_param.picture_width_in_mbs = frame_width_mbaligned / 16;
1145 seq_param.picture_height_in_mbs = frame_height_mbaligned / 16;
1146 seq_param.bits_per_second = frame_bitrate;
1148 seq_param.intra_period = intra_period;
1149 seq_param.intra_idr_period = intra_idr_period;
1150 seq_param.ip_period = ip_period;
1152 seq_param.max_num_ref_frames = num_ref_frames;
1153 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1154 seq_param.time_scale = TIMEBASE * 2;
1155 seq_param.num_units_in_tick = 1; /* Tc = num_units_in_tick / scale */
1156 seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 = Log2MaxPicOrderCntLsb - 4;
1157 seq_param.seq_fields.bits.log2_max_frame_num_minus4 = Log2MaxFrameNum - 4;;
1158 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1159 seq_param.seq_fields.bits.chroma_format_idc = 1;
1160 seq_param.seq_fields.bits.direct_8x8_inference_flag = 1;
1162 if (frame_width != frame_width_mbaligned ||
1163 frame_height != frame_height_mbaligned) {
1164 seq_param.frame_cropping_flag = 1;
1165 seq_param.frame_crop_left_offset = 0;
1166 seq_param.frame_crop_right_offset = (frame_width_mbaligned - frame_width)/2;
1167 seq_param.frame_crop_top_offset = 0;
1168 seq_param.frame_crop_bottom_offset = (frame_height_mbaligned - frame_height)/2;
1171 va_status = vaCreateBuffer(va_dpy, context_id,
1172 VAEncSequenceParameterBufferType,
1173 sizeof(seq_param), 1, &seq_param, &seq_param_buf);
1174 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1176 va_status = vaCreateBuffer(va_dpy, context_id,
1177 VAEncMiscParameterBufferType,
1178 sizeof(VAEncMiscParameterBuffer) + sizeof(VAEncMiscParameterRateControl),
1179 1, NULL, &rc_param_buf);
1180 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1182 vaMapBuffer(va_dpy, rc_param_buf, (void **)&misc_param);
1183 misc_param->type = VAEncMiscParameterTypeRateControl;
1184 misc_rate_ctrl = (VAEncMiscParameterRateControl *)misc_param->data;
1185 memset(misc_rate_ctrl, 0, sizeof(*misc_rate_ctrl));
1186 misc_rate_ctrl->bits_per_second = frame_bitrate;
1187 misc_rate_ctrl->target_percentage = 66;
1188 misc_rate_ctrl->window_size = 1000;
1189 misc_rate_ctrl->initial_qp = initial_qp;
1190 misc_rate_ctrl->min_qp = minimal_qp;
1191 misc_rate_ctrl->basic_unit_size = 0;
1192 vaUnmapBuffer(va_dpy, rc_param_buf);
1194 render_id[0] = seq_param_buf;
1195 render_id[1] = rc_param_buf;
1197 render_picture_and_delete(va_dpy, context_id, &render_id[0], 2);
1202 static int calc_poc(int pic_order_cnt_lsb, int frame_type)
1204 static int PicOrderCntMsb_ref = 0, pic_order_cnt_lsb_ref = 0;
1205 int prevPicOrderCntMsb, prevPicOrderCntLsb;
1206 int PicOrderCntMsb, TopFieldOrderCnt;
1208 if (frame_type == FRAME_IDR)
1209 prevPicOrderCntMsb = prevPicOrderCntLsb = 0;
1211 prevPicOrderCntMsb = PicOrderCntMsb_ref;
1212 prevPicOrderCntLsb = pic_order_cnt_lsb_ref;
1215 if ((pic_order_cnt_lsb < prevPicOrderCntLsb) &&
1216 ((prevPicOrderCntLsb - pic_order_cnt_lsb) >= (int)(MaxPicOrderCntLsb / 2)))
1217 PicOrderCntMsb = prevPicOrderCntMsb + MaxPicOrderCntLsb;
1218 else if ((pic_order_cnt_lsb > prevPicOrderCntLsb) &&
1219 ((pic_order_cnt_lsb - prevPicOrderCntLsb) > (int)(MaxPicOrderCntLsb / 2)))
1220 PicOrderCntMsb = prevPicOrderCntMsb - MaxPicOrderCntLsb;
1222 PicOrderCntMsb = prevPicOrderCntMsb;
1224 TopFieldOrderCnt = PicOrderCntMsb + pic_order_cnt_lsb;
1226 if (frame_type != FRAME_B) {
1227 PicOrderCntMsb_ref = PicOrderCntMsb;
1228 pic_order_cnt_lsb_ref = pic_order_cnt_lsb;
1231 return TopFieldOrderCnt;
1234 int H264EncoderImpl::render_picture(int frame_type, int display_frame_num, int gop_start_display_frame_num)
1236 VABufferID pic_param_buf;
1240 pic_param.CurrPic.picture_id = gl_surfaces[display_frame_num % SURFACE_NUM].ref_surface;
1241 pic_param.CurrPic.frame_idx = current_frame_num;
1242 pic_param.CurrPic.flags = 0;
1243 pic_param.CurrPic.TopFieldOrderCnt = calc_poc((display_frame_num - gop_start_display_frame_num) % MaxPicOrderCntLsb, frame_type);
1244 pic_param.CurrPic.BottomFieldOrderCnt = pic_param.CurrPic.TopFieldOrderCnt;
1245 CurrentCurrPic = pic_param.CurrPic;
1247 memcpy(pic_param.ReferenceFrames, ReferenceFrames, numShortTerm*sizeof(VAPictureH264));
1248 for (i = numShortTerm; i < SURFACE_NUM; i++) {
1249 pic_param.ReferenceFrames[i].picture_id = VA_INVALID_SURFACE;
1250 pic_param.ReferenceFrames[i].flags = VA_PICTURE_H264_INVALID;
1253 pic_param.pic_fields.bits.idr_pic_flag = (frame_type == FRAME_IDR);
1254 pic_param.pic_fields.bits.reference_pic_flag = (frame_type != FRAME_B);
1255 pic_param.pic_fields.bits.entropy_coding_mode_flag = h264_entropy_mode;
1256 pic_param.pic_fields.bits.deblocking_filter_control_present_flag = 1;
1257 pic_param.frame_num = current_frame_num;
1258 pic_param.coded_buf = gl_surfaces[display_frame_num % SURFACE_NUM].coded_buf;
1259 pic_param.last_picture = false; // FIXME
1260 pic_param.pic_init_qp = initial_qp;
1262 va_status = vaCreateBuffer(va_dpy, context_id, VAEncPictureParameterBufferType,
1263 sizeof(pic_param), 1, &pic_param, &pic_param_buf);
1264 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1266 render_picture_and_delete(va_dpy, context_id, &pic_param_buf, 1);
1271 int H264EncoderImpl::render_packedsequence()
1273 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1274 VABufferID packedseq_para_bufid, packedseq_data_bufid, render_id[2];
1275 unsigned int length_in_bits;
1276 unsigned char *packedseq_buffer = NULL;
1279 length_in_bits = build_packed_seq_buffer(&packedseq_buffer);
1281 packedheader_param_buffer.type = VAEncPackedHeaderSequence;
1283 packedheader_param_buffer.bit_length = length_in_bits; /*length_in_bits*/
1284 packedheader_param_buffer.has_emulation_bytes = 0;
1285 va_status = vaCreateBuffer(va_dpy,
1287 VAEncPackedHeaderParameterBufferType,
1288 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1289 &packedseq_para_bufid);
1290 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1292 va_status = vaCreateBuffer(va_dpy,
1294 VAEncPackedHeaderDataBufferType,
1295 (length_in_bits + 7) / 8, 1, packedseq_buffer,
1296 &packedseq_data_bufid);
1297 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1299 render_id[0] = packedseq_para_bufid;
1300 render_id[1] = packedseq_data_bufid;
1301 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1303 free(packedseq_buffer);
1309 int H264EncoderImpl::render_packedpicture()
1311 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1312 VABufferID packedpic_para_bufid, packedpic_data_bufid, render_id[2];
1313 unsigned int length_in_bits;
1314 unsigned char *packedpic_buffer = NULL;
1317 length_in_bits = build_packed_pic_buffer(&packedpic_buffer);
1318 packedheader_param_buffer.type = VAEncPackedHeaderPicture;
1319 packedheader_param_buffer.bit_length = length_in_bits;
1320 packedheader_param_buffer.has_emulation_bytes = 0;
1322 va_status = vaCreateBuffer(va_dpy,
1324 VAEncPackedHeaderParameterBufferType,
1325 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1326 &packedpic_para_bufid);
1327 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1329 va_status = vaCreateBuffer(va_dpy,
1331 VAEncPackedHeaderDataBufferType,
1332 (length_in_bits + 7) / 8, 1, packedpic_buffer,
1333 &packedpic_data_bufid);
1334 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1336 render_id[0] = packedpic_para_bufid;
1337 render_id[1] = packedpic_data_bufid;
1338 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1340 free(packedpic_buffer);
1345 void H264EncoderImpl::render_packedslice()
1347 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1348 VABufferID packedslice_para_bufid, packedslice_data_bufid, render_id[2];
1349 unsigned int length_in_bits;
1350 unsigned char *packedslice_buffer = NULL;
1353 length_in_bits = build_packed_slice_buffer(&packedslice_buffer);
1354 packedheader_param_buffer.type = VAEncPackedHeaderSlice;
1355 packedheader_param_buffer.bit_length = length_in_bits;
1356 packedheader_param_buffer.has_emulation_bytes = 0;
1358 va_status = vaCreateBuffer(va_dpy,
1360 VAEncPackedHeaderParameterBufferType,
1361 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1362 &packedslice_para_bufid);
1363 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1365 va_status = vaCreateBuffer(va_dpy,
1367 VAEncPackedHeaderDataBufferType,
1368 (length_in_bits + 7) / 8, 1, packedslice_buffer,
1369 &packedslice_data_bufid);
1370 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1372 render_id[0] = packedslice_para_bufid;
1373 render_id[1] = packedslice_data_bufid;
1374 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1376 free(packedslice_buffer);
1379 int H264EncoderImpl::render_slice(int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num, int frame_type)
1381 VABufferID slice_param_buf;
1385 update_RefPicList(frame_type);
1387 /* one frame, one slice */
1388 slice_param.macroblock_address = 0;
1389 slice_param.num_macroblocks = frame_width_mbaligned * frame_height_mbaligned/(16*16); /* Measured by MB */
1390 slice_param.slice_type = (frame_type == FRAME_IDR)?2:frame_type;
1391 if (frame_type == FRAME_IDR) {
1392 if (encoding_frame_num != 0)
1393 ++slice_param.idr_pic_id;
1394 } else if (frame_type == FRAME_P) {
1395 int refpiclist0_max = h264_maxref & 0xffff;
1396 memcpy(slice_param.RefPicList0, RefPicList0_P, refpiclist0_max*sizeof(VAPictureH264));
1398 for (i = refpiclist0_max; i < 32; i++) {
1399 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1400 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1402 } else if (frame_type == FRAME_B) {
1403 int refpiclist0_max = h264_maxref & 0xffff;
1404 int refpiclist1_max = (h264_maxref >> 16) & 0xffff;
1406 memcpy(slice_param.RefPicList0, RefPicList0_B, refpiclist0_max*sizeof(VAPictureH264));
1407 for (i = refpiclist0_max; i < 32; i++) {
1408 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1409 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1412 memcpy(slice_param.RefPicList1, RefPicList1_B, refpiclist1_max*sizeof(VAPictureH264));
1413 for (i = refpiclist1_max; i < 32; i++) {
1414 slice_param.RefPicList1[i].picture_id = VA_INVALID_SURFACE;
1415 slice_param.RefPicList1[i].flags = VA_PICTURE_H264_INVALID;
1419 slice_param.slice_alpha_c0_offset_div2 = 0;
1420 slice_param.slice_beta_offset_div2 = 0;
1421 slice_param.direct_spatial_mv_pred_flag = 1;
1422 slice_param.pic_order_cnt_lsb = (display_frame_num - gop_start_display_frame_num) % MaxPicOrderCntLsb;
1425 if (h264_packedheader &&
1426 config_attrib[enc_packed_header_idx].value & VA_ENC_PACKED_HEADER_SLICE)
1427 render_packedslice();
1429 va_status = vaCreateBuffer(va_dpy, context_id, VAEncSliceParameterBufferType,
1430 sizeof(slice_param), 1, &slice_param, &slice_param_buf);
1431 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1433 render_picture_and_delete(va_dpy, context_id, &slice_param_buf, 1);
1440 void H264EncoderImpl::save_codeddata(storage_task task)
1442 VACodedBufferSegment *buf_list = NULL;
1447 const int64_t global_delay = int64_t(ip_period - 1) * (TIMEBASE / MAX_FPS); // So we never get negative dts.
1449 va_status = vaMapBuffer(va_dpy, gl_surfaces[task.display_order % SURFACE_NUM].coded_buf, (void **)(&buf_list));
1450 CHECK_VASTATUS(va_status, "vaMapBuffer");
1451 while (buf_list != NULL) {
1452 data.append(reinterpret_cast<const char *>(buf_list->buf), buf_list->size);
1453 buf_list = (VACodedBufferSegment *) buf_list->next;
1455 vaUnmapBuffer(va_dpy, gl_surfaces[task.display_order % SURFACE_NUM].coded_buf);
1460 memset(&pkt, 0, sizeof(pkt));
1462 pkt.data = reinterpret_cast<uint8_t *>(&data[0]);
1463 pkt.size = data.size();
1464 pkt.stream_index = 0;
1465 if (task.frame_type == FRAME_IDR || task.frame_type == FRAME_I) {
1466 pkt.flags = AV_PKT_FLAG_KEY;
1471 httpd->add_packet(pkt, task.pts + global_delay, task.dts + global_delay);
1473 // Encode and add all audio frames up to and including the pts of this video frame.
1476 vector<float> audio;
1478 unique_lock<mutex> lock(frame_queue_mutex);
1479 frame_queue_nonempty.wait(lock, [this]{ return storage_thread_should_quit || !pending_audio_frames.empty(); });
1480 if (storage_thread_should_quit && pending_audio_frames.empty()) return;
1481 auto it = pending_audio_frames.begin();
1482 if (it->first > task.pts) break;
1483 audio_pts = it->first;
1484 audio = move(it->second);
1485 pending_audio_frames.erase(it);
1488 AVFrame *frame = avcodec_alloc_frame();
1489 frame->nb_samples = audio.size() / 2;
1490 frame->format = AV_SAMPLE_FMT_S32;
1491 frame->channel_layout = AV_CH_LAYOUT_STEREO;
1493 unique_ptr<int32_t[]> int_samples(new int32_t[audio.size()]);
1494 int ret = avcodec_fill_audio_frame(frame, 2, AV_SAMPLE_FMT_S32, (const uint8_t*)int_samples.get(), audio.size() * sizeof(int32_t), 1);
1496 fprintf(stderr, "avcodec_fill_audio_frame() failed with %d\n", ret);
1499 for (int i = 0; i < frame->nb_samples * 2; ++i) {
1500 if (audio[i] >= 1.0f) {
1501 int_samples[i] = 2147483647;
1502 } else if (audio[i] <= -1.0f) {
1503 int_samples[i] = -2147483647;
1505 int_samples[i] = lrintf(audio[i] * 2147483647.0f);
1510 av_init_packet(&pkt);
1514 avcodec_encode_audio2(context_audio, &pkt, frame, &got_output);
1516 pkt.stream_index = 1;
1517 httpd->add_packet(pkt, audio_pts + global_delay, audio_pts + global_delay);
1519 // TODO: Delayed frames.
1520 avcodec_free_frame(&frame);
1521 av_free_packet(&pkt);
1522 if (audio_pts == task.pts) break;
1526 printf("\r "); /* return back to startpoint */
1527 switch (encode_order % 4) {
1541 printf("%08lld", encode_order);
1546 // this is weird. but it seems to put a new frame onto the queue
1547 void H264EncoderImpl::storage_task_enqueue(storage_task task)
1549 unique_lock<mutex> lock(storage_task_queue_mutex);
1550 storage_task_queue.push(move(task));
1551 srcsurface_status[task.display_order % SURFACE_NUM] = SRC_SURFACE_IN_ENCODING;
1552 storage_task_queue_changed.notify_all();
1555 void H264EncoderImpl::storage_task_thread()
1558 storage_task current;
1560 // wait until there's an encoded frame
1561 unique_lock<mutex> lock(storage_task_queue_mutex);
1562 storage_task_queue_changed.wait(lock, [this]{ return storage_thread_should_quit || !storage_task_queue.empty(); });
1563 if (storage_thread_should_quit && storage_task_queue.empty()) return;
1564 current = move(storage_task_queue.front());
1565 storage_task_queue.pop();
1570 // waits for data, then saves it to disk.
1571 va_status = vaSyncSurface(va_dpy, gl_surfaces[current.display_order % SURFACE_NUM].src_surface);
1572 CHECK_VASTATUS(va_status, "vaSyncSurface");
1573 save_codeddata(move(current));
1576 unique_lock<mutex> lock(storage_task_queue_mutex);
1577 srcsurface_status[current.display_order % SURFACE_NUM] = SRC_SURFACE_FREE;
1578 storage_task_queue_changed.notify_all();
1583 int H264EncoderImpl::release_encode()
1587 for (i = 0; i < SURFACE_NUM; i++) {
1588 vaDestroyBuffer(va_dpy, gl_surfaces[i].coded_buf);
1589 vaDestroySurfaces(va_dpy, &gl_surfaces[i].src_surface, 1);
1590 vaDestroySurfaces(va_dpy, &gl_surfaces[i].ref_surface, 1);
1593 vaDestroyContext(va_dpy, context_id);
1594 vaDestroyConfig(va_dpy, config_id);
1599 int H264EncoderImpl::deinit_va()
1601 vaTerminate(va_dpy);
1603 va_close_display(va_dpy);
1609 H264EncoderImpl::H264EncoderImpl(QSurface *surface, int width, int height, HTTPD *httpd)
1610 : current_storage_frame(0), surface(surface), httpd(httpd)
1612 AVCodec *codec_audio = avcodec_find_encoder(AUDIO_OUTPUT_CODEC);
1613 context_audio = avcodec_alloc_context3(codec_audio);
1614 context_audio->bit_rate = AUDIO_OUTPUT_BIT_RATE;
1615 context_audio->sample_rate = OUTPUT_FREQUENCY;
1616 context_audio->sample_fmt = AUDIO_OUTPUT_SAMPLE_FMT;
1617 context_audio->channels = 2;
1618 context_audio->channel_layout = AV_CH_LAYOUT_STEREO;
1619 context_audio->time_base = AVRational{1, TIMEBASE};
1620 if (avcodec_open2(context_audio, codec_audio, NULL) < 0) {
1621 fprintf(stderr, "Could not open codec\n");
1625 frame_width = width;
1626 frame_height = height;
1627 frame_width_mbaligned = (frame_width + 15) & (~15);
1628 frame_height_mbaligned = (frame_height + 15) & (~15);
1635 // No frames are ready yet.
1636 memset(srcsurface_status, SRC_SURFACE_FREE, sizeof(srcsurface_status));
1638 memset(&seq_param, 0, sizeof(seq_param));
1639 memset(&pic_param, 0, sizeof(pic_param));
1640 memset(&slice_param, 0, sizeof(slice_param));
1642 storage_thread = thread(&H264EncoderImpl::storage_task_thread, this);
1644 encode_thread = thread([this]{
1645 //SDL_GL_MakeCurrent(window, context);
1646 QOpenGLContext *context = create_context(this->surface);
1647 eglBindAPI(EGL_OPENGL_API);
1648 if (!make_current(context, this->surface)) {
1649 printf("display=%p surface=%p context=%p curr=%p err=%d\n", eglGetCurrentDisplay(), this->surface, context, eglGetCurrentContext(),
1653 encode_thread_func();
1657 H264EncoderImpl::~H264EncoderImpl()
1662 bool H264EncoderImpl::begin_frame(GLuint *y_tex, GLuint *cbcr_tex)
1664 assert(!is_shutdown);
1666 // Wait until this frame slot is done encoding.
1667 unique_lock<mutex> lock(storage_task_queue_mutex);
1668 storage_task_queue_changed.wait(lock, [this]{ return storage_thread_should_quit || (srcsurface_status[current_storage_frame % SURFACE_NUM] == SRC_SURFACE_FREE); });
1669 if (storage_thread_should_quit) return false;
1672 //*fbo = fbos[current_storage_frame % SURFACE_NUM];
1673 GLSurface *surf = &gl_surfaces[current_storage_frame % SURFACE_NUM];
1674 *y_tex = surf->y_tex;
1675 *cbcr_tex = surf->cbcr_tex;
1677 VASurfaceID surface = surf->src_surface;
1678 VAStatus va_status = vaDeriveImage(va_dpy, surface, &surf->surface_image);
1679 CHECK_VASTATUS(va_status, "vaDeriveImage");
1681 VABufferInfo buf_info;
1682 buf_info.mem_type = VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME; // or VA_SURFACE_ATTRIB_MEM_TYPE_KERNEL_DRM?
1683 va_status = vaAcquireBufferHandle(va_dpy, surf->surface_image.buf, &buf_info);
1684 CHECK_VASTATUS(va_status, "vaAcquireBufferHandle");
1687 surf->y_egl_image = EGL_NO_IMAGE_KHR;
1688 EGLint y_attribs[] = {
1689 EGL_WIDTH, frame_width,
1690 EGL_HEIGHT, frame_height,
1691 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('R', '8', ' ', ' '),
1692 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
1693 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[0]),
1694 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[0]),
1698 surf->y_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, y_attribs);
1699 assert(surf->y_egl_image != EGL_NO_IMAGE_KHR);
1701 // Associate Y image to a texture.
1702 glBindTexture(GL_TEXTURE_2D, *y_tex);
1703 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->y_egl_image);
1705 // Create CbCr image.
1706 surf->cbcr_egl_image = EGL_NO_IMAGE_KHR;
1707 EGLint cbcr_attribs[] = {
1708 EGL_WIDTH, frame_width,
1709 EGL_HEIGHT, frame_height,
1710 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('G', 'R', '8', '8'),
1711 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
1712 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[1]),
1713 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[1]),
1717 surf->cbcr_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, cbcr_attribs);
1718 assert(surf->cbcr_egl_image != EGL_NO_IMAGE_KHR);
1720 // Associate CbCr image to a texture.
1721 glBindTexture(GL_TEXTURE_2D, *cbcr_tex);
1722 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->cbcr_egl_image);
1727 void H264EncoderImpl::add_audio(int64_t pts, vector<float> audio)
1729 assert(!is_shutdown);
1731 unique_lock<mutex> lock(frame_queue_mutex);
1732 pending_audio_frames[pts] = move(audio);
1734 frame_queue_nonempty.notify_all();
1737 void H264EncoderImpl::end_frame(RefCountedGLsync fence, int64_t pts, const vector<RefCountedFrame> &input_frames)
1739 assert(!is_shutdown);
1741 unique_lock<mutex> lock(frame_queue_mutex);
1742 pending_video_frames[current_storage_frame] = PendingFrame{ fence, input_frames, pts };
1743 ++current_storage_frame;
1745 frame_queue_nonempty.notify_all();
1748 void H264EncoderImpl::shutdown()
1755 unique_lock<mutex> lock(frame_queue_mutex);
1756 encode_thread_should_quit = true;
1757 frame_queue_nonempty.notify_all();
1759 encode_thread.join();
1761 unique_lock<mutex> lock(storage_task_queue_mutex);
1762 storage_thread_should_quit = true;
1763 frame_queue_nonempty.notify_all();
1764 storage_task_queue_changed.notify_all();
1766 storage_thread.join();
1773 void H264EncoderImpl::encode_thread_func()
1775 int64_t last_dts = -1;
1776 int gop_start_display_frame_num = 0;
1777 for (int encoding_frame_num = 0; ; ++encoding_frame_num) {
1780 int frame_type, display_frame_num;
1781 encoding2display_order(encoding_frame_num, intra_period, intra_idr_period, ip_period,
1782 &display_frame_num, &frame_type, &pts_lag);
1783 if (frame_type == FRAME_IDR) {
1785 current_frame_num = 0;
1786 gop_start_display_frame_num = display_frame_num;
1790 unique_lock<mutex> lock(frame_queue_mutex);
1791 frame_queue_nonempty.wait(lock, [this, display_frame_num]{
1792 return encode_thread_should_quit || pending_video_frames.count(display_frame_num) != 0;
1794 if (encode_thread_should_quit && pending_video_frames.count(display_frame_num) == 0) {
1795 // We have queued frames that were supposed to be B-frames,
1796 // but will be no P-frame to encode them against. Encode them all
1797 // as P-frames instead. Note that this happens under the mutex,
1798 // but nobody else uses it at this point, since we're shutting down,
1799 // so there's no contention.
1800 encode_remaining_frames_as_p(encoding_frame_num, gop_start_display_frame_num, last_dts);
1803 frame = move(pending_video_frames[display_frame_num]);
1804 pending_video_frames.erase(display_frame_num);
1808 // Determine the dts of this frame.
1810 if (pts_lag == -1) {
1811 assert(last_dts != -1);
1812 dts = last_dts + (TIMEBASE / MAX_FPS);
1814 dts = frame.pts - pts_lag;
1818 encode_frame(frame, encoding_frame_num, display_frame_num, gop_start_display_frame_num, frame_type, frame.pts, dts);
1822 void H264EncoderImpl::encode_remaining_frames_as_p(int encoding_frame_num, int gop_start_display_frame_num, int64_t last_dts)
1824 if (pending_video_frames.empty()) {
1828 for (auto &pending_frame : pending_video_frames) {
1829 int display_frame_num = pending_frame.first;
1830 assert(display_frame_num > 0);
1831 PendingFrame frame = move(pending_frame.second);
1832 int64_t dts = last_dts + (TIMEBASE / MAX_FPS);
1833 printf("Finalizing encode: Encoding leftover frame %d as P-frame instead of B-frame.\n", display_frame_num);
1834 encode_frame(frame, encoding_frame_num++, display_frame_num, gop_start_display_frame_num, FRAME_P, frame.pts, dts);
1839 void H264EncoderImpl::encode_frame(H264EncoderImpl::PendingFrame frame, int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num,
1840 int frame_type, int64_t pts, int64_t dts)
1842 // Wait for the GPU to be done with the frame.
1843 glClientWaitSync(frame.fence.get(), 0, 0);
1845 // Release back any input frames we needed to render this frame.
1846 frame.input_frames.clear();
1849 GLSurface *surf = &gl_surfaces[display_frame_num % SURFACE_NUM];
1850 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->y_egl_image);
1851 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->cbcr_egl_image);
1852 VAStatus va_status = vaReleaseBufferHandle(va_dpy, surf->surface_image.buf);
1853 CHECK_VASTATUS(va_status, "vaReleaseBufferHandle");
1854 va_status = vaDestroyImage(va_dpy, surf->surface_image.image_id);
1855 CHECK_VASTATUS(va_status, "vaDestroyImage");
1857 VASurfaceID surface = surf->src_surface;
1859 // Schedule the frame for encoding.
1860 va_status = vaBeginPicture(va_dpy, context_id, surface);
1861 CHECK_VASTATUS(va_status, "vaBeginPicture");
1863 if (frame_type == FRAME_IDR) {
1865 render_picture(frame_type, display_frame_num, gop_start_display_frame_num);
1866 if (h264_packedheader) {
1867 render_packedsequence();
1868 render_packedpicture();
1871 //render_sequence();
1872 render_picture(frame_type, display_frame_num, gop_start_display_frame_num);
1874 render_slice(encoding_frame_num, display_frame_num, gop_start_display_frame_num, frame_type);
1876 va_status = vaEndPicture(va_dpy, context_id);
1877 CHECK_VASTATUS(va_status, "vaEndPicture");
1879 // so now the data is done encoding (well, async job kicked off)...
1880 // we send that to the storage thread
1882 tmp.display_order = display_frame_num;
1883 tmp.frame_type = frame_type;
1886 storage_task_enqueue(move(tmp));
1888 update_ReferenceFrames(frame_type);
1892 H264Encoder::H264Encoder(QSurface *surface, int width, int height, HTTPD *httpd)
1893 : impl(new H264EncoderImpl(surface, width, height, httpd)) {}
1895 // Must be defined here because unique_ptr<> destructor needs to know the impl.
1896 H264Encoder::~H264Encoder() {}
1898 void H264Encoder::add_audio(int64_t pts, vector<float> audio)
1900 impl->add_audio(pts, audio);
1903 bool H264Encoder::begin_frame(GLuint *y_tex, GLuint *cbcr_tex)
1905 return impl->begin_frame(y_tex, cbcr_tex);
1908 void H264Encoder::end_frame(RefCountedGLsync fence, int64_t pts, const vector<RefCountedFrame> &input_frames)
1910 impl->end_frame(fence, pts, input_frames);
1913 void H264Encoder::shutdown()