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, std::vector<float> audio); // Needs to come before end_frame() of same pts.
114 bool begin_frame(GLuint *y_tex, GLuint *cbcr_tex);
115 void end_frame(RefCountedGLsync fence, int64_t pts, const std::vector<RefCountedFrame> &input_frames);
118 struct storage_task {
119 unsigned long long display_order;
121 std::vector<float> audio;
124 struct PendingFrame {
125 RefCountedGLsync fence;
126 std::vector<RefCountedFrame> input_frames;
130 void encode_thread_func();
131 void encode_remaining_frames_as_p(int encoding_frame_num, int gop_start_display_frame_num, int64_t last_dts);
132 void encode_frame(PendingFrame frame, int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num,
133 int frame_type, int64_t pts, int64_t dts);
134 void storage_task_thread();
135 void storage_task_enqueue(storage_task task);
136 void save_codeddata(storage_task task);
137 int render_packedsequence();
138 int render_packedpicture();
139 void render_packedslice();
140 int render_sequence();
141 int render_picture(int frame_type, int display_frame_num, int gop_start_display_frame_num);
142 void sps_rbsp(bitstream *bs);
143 void pps_rbsp(bitstream *bs);
144 int build_packed_pic_buffer(unsigned char **header_buffer);
145 int render_slice(int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num, int frame_type);
146 void slice_header(bitstream *bs);
147 int build_packed_seq_buffer(unsigned char **header_buffer);
148 int build_packed_slice_buffer(unsigned char **header_buffer);
151 VADisplay va_open_display(void);
152 void va_close_display(VADisplay va_dpy);
154 int release_encode();
155 void update_ReferenceFrames(int frame_type);
156 int update_RefPicList(int frame_type);
158 std::thread encode_thread, storage_thread;
160 std::mutex storage_task_queue_mutex;
161 std::condition_variable storage_task_queue_changed;
162 int srcsurface_status[SURFACE_NUM]; // protected by storage_task_queue_mutex
163 std::queue<storage_task> storage_task_queue; // protected by storage_task_queue_mutex
164 bool storage_thread_should_quit = false; // protected by storage_task_queue_mutex
166 std::mutex frame_queue_mutex;
167 std::condition_variable frame_queue_nonempty;
168 bool encode_thread_should_quit = false; // under frame_queue_mutex
170 int current_storage_frame;
172 std::map<int, PendingFrame> pending_video_frames; // under frame_queue_mutex
173 std::map<int64_t, std::vector<float>> pending_audio_frames; // under frame_queue_mutex
176 AVCodecContext *context_audio;
179 Display *x11_display;
182 // Encoder parameters
184 VAProfile h264_profile = (VAProfile)~0;
185 VAConfigAttrib config_attrib[VAConfigAttribTypeMax];
186 int config_attrib_num = 0, enc_packed_header_idx;
189 VASurfaceID src_surface, ref_surface;
190 VABufferID coded_buf;
192 VAImage surface_image;
193 GLuint y_tex, cbcr_tex;
194 EGLImage y_egl_image, cbcr_egl_image;
196 GLSurface gl_surfaces[SURFACE_NUM];
198 VAConfigID config_id;
199 VAContextID context_id;
200 VAEncSequenceParameterBufferH264 seq_param;
201 VAEncPictureParameterBufferH264 pic_param;
202 VAEncSliceParameterBufferH264 slice_param;
203 VAPictureH264 CurrentCurrPic;
204 VAPictureH264 ReferenceFrames[16], RefPicList0_P[32], RefPicList0_B[32], RefPicList1_B[32];
206 // Static quality settings.
207 static constexpr unsigned int frame_bitrate = 15000000 / 60; // Doesn't really matter; only initial_qp does.
208 static constexpr unsigned int num_ref_frames = 2;
209 static constexpr int initial_qp = 15;
210 static constexpr int minimal_qp = 0;
211 static constexpr int intra_period = 30;
212 static constexpr int intra_idr_period = MAX_FPS; // About a second; more at lower frame rates. Not ideal.
214 // Quality settings that are meant to be static, but might be overridden
216 int constraint_set_flag = 0;
217 int h264_packedheader = 0; /* support pack header? */
218 int h264_maxref = (1<<16|1);
219 int h264_entropy_mode = 1; /* cabac */
223 unsigned int current_frame_num = 0;
224 unsigned int numShortTerm = 0;
228 int frame_width_mbaligned;
229 int frame_height_mbaligned;
233 // Supposedly vaRenderPicture() is supposed to destroy the buffer implicitly,
234 // but if we don't delete it here, we get leaks. The GStreamer implementation
236 static void render_picture_and_delete(VADisplay dpy, VAContextID context, VABufferID *buffers, int num_buffers)
238 VAStatus va_status = vaRenderPicture(dpy, context, buffers, num_buffers);
239 CHECK_VASTATUS(va_status, "vaRenderPicture");
241 for (int i = 0; i < num_buffers; ++i) {
242 va_status = vaDestroyBuffer(dpy, buffers[i]);
243 CHECK_VASTATUS(va_status, "vaDestroyBuffer");
248 va_swap32(unsigned int val)
250 unsigned char *pval = (unsigned char *)&val;
252 return ((pval[0] << 24) |
259 bitstream_start(bitstream *bs)
261 bs->max_size_in_dword = BITSTREAM_ALLOCATE_STEPPING;
262 bs->buffer = (unsigned int *)calloc(bs->max_size_in_dword * sizeof(int), 1);
267 bitstream_end(bitstream *bs)
269 int pos = (bs->bit_offset >> 5);
270 int bit_offset = (bs->bit_offset & 0x1f);
271 int bit_left = 32 - bit_offset;
274 bs->buffer[pos] = va_swap32((bs->buffer[pos] << bit_left));
279 bitstream_put_ui(bitstream *bs, unsigned int val, int size_in_bits)
281 int pos = (bs->bit_offset >> 5);
282 int bit_offset = (bs->bit_offset & 0x1f);
283 int bit_left = 32 - bit_offset;
288 bs->bit_offset += size_in_bits;
290 if (bit_left > size_in_bits) {
291 bs->buffer[pos] = (bs->buffer[pos] << size_in_bits | val);
293 size_in_bits -= bit_left;
294 bs->buffer[pos] = (bs->buffer[pos] << bit_left) | (val >> size_in_bits);
295 bs->buffer[pos] = va_swap32(bs->buffer[pos]);
297 if (pos + 1 == bs->max_size_in_dword) {
298 bs->max_size_in_dword += BITSTREAM_ALLOCATE_STEPPING;
299 bs->buffer = (unsigned int *)realloc(bs->buffer, bs->max_size_in_dword * sizeof(unsigned int));
302 bs->buffer[pos + 1] = val;
307 bitstream_put_ue(bitstream *bs, unsigned int val)
309 int size_in_bits = 0;
317 bitstream_put_ui(bs, 0, size_in_bits - 1); // leading zero
318 bitstream_put_ui(bs, val, size_in_bits);
322 bitstream_put_se(bitstream *bs, int val)
324 unsigned int new_val;
329 new_val = 2 * val - 1;
331 bitstream_put_ue(bs, new_val);
335 bitstream_byte_aligning(bitstream *bs, int bit)
337 int bit_offset = (bs->bit_offset & 0x7);
338 int bit_left = 8 - bit_offset;
344 assert(bit == 0 || bit == 1);
347 new_val = (1 << bit_left) - 1;
351 bitstream_put_ui(bs, new_val, bit_left);
355 rbsp_trailing_bits(bitstream *bs)
357 bitstream_put_ui(bs, 1, 1);
358 bitstream_byte_aligning(bs, 0);
361 static void nal_start_code_prefix(bitstream *bs)
363 bitstream_put_ui(bs, 0x00000001, 32);
366 static void nal_header(bitstream *bs, int nal_ref_idc, int nal_unit_type)
368 bitstream_put_ui(bs, 0, 1); /* forbidden_zero_bit: 0 */
369 bitstream_put_ui(bs, nal_ref_idc, 2);
370 bitstream_put_ui(bs, nal_unit_type, 5);
373 void H264EncoderImpl::sps_rbsp(bitstream *bs)
375 int profile_idc = PROFILE_IDC_BASELINE;
377 if (h264_profile == VAProfileH264High)
378 profile_idc = PROFILE_IDC_HIGH;
379 else if (h264_profile == VAProfileH264Main)
380 profile_idc = PROFILE_IDC_MAIN;
382 bitstream_put_ui(bs, profile_idc, 8); /* profile_idc */
383 bitstream_put_ui(bs, !!(constraint_set_flag & 1), 1); /* constraint_set0_flag */
384 bitstream_put_ui(bs, !!(constraint_set_flag & 2), 1); /* constraint_set1_flag */
385 bitstream_put_ui(bs, !!(constraint_set_flag & 4), 1); /* constraint_set2_flag */
386 bitstream_put_ui(bs, !!(constraint_set_flag & 8), 1); /* constraint_set3_flag */
387 bitstream_put_ui(bs, 0, 4); /* reserved_zero_4bits */
388 bitstream_put_ui(bs, seq_param.level_idc, 8); /* level_idc */
389 bitstream_put_ue(bs, seq_param.seq_parameter_set_id); /* seq_parameter_set_id */
391 if ( profile_idc == PROFILE_IDC_HIGH) {
392 bitstream_put_ue(bs, 1); /* chroma_format_idc = 1, 4:2:0 */
393 bitstream_put_ue(bs, 0); /* bit_depth_luma_minus8 */
394 bitstream_put_ue(bs, 0); /* bit_depth_chroma_minus8 */
395 bitstream_put_ui(bs, 0, 1); /* qpprime_y_zero_transform_bypass_flag */
396 bitstream_put_ui(bs, 0, 1); /* seq_scaling_matrix_present_flag */
399 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_frame_num_minus4); /* log2_max_frame_num_minus4 */
400 bitstream_put_ue(bs, seq_param.seq_fields.bits.pic_order_cnt_type); /* pic_order_cnt_type */
402 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0)
403 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4); /* log2_max_pic_order_cnt_lsb_minus4 */
408 bitstream_put_ue(bs, seq_param.max_num_ref_frames); /* num_ref_frames */
409 bitstream_put_ui(bs, 0, 1); /* gaps_in_frame_num_value_allowed_flag */
411 bitstream_put_ue(bs, seq_param.picture_width_in_mbs - 1); /* pic_width_in_mbs_minus1 */
412 bitstream_put_ue(bs, seq_param.picture_height_in_mbs - 1); /* pic_height_in_map_units_minus1 */
413 bitstream_put_ui(bs, seq_param.seq_fields.bits.frame_mbs_only_flag, 1); /* frame_mbs_only_flag */
415 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
419 bitstream_put_ui(bs, seq_param.seq_fields.bits.direct_8x8_inference_flag, 1); /* direct_8x8_inference_flag */
420 bitstream_put_ui(bs, seq_param.frame_cropping_flag, 1); /* frame_cropping_flag */
422 if (seq_param.frame_cropping_flag) {
423 bitstream_put_ue(bs, seq_param.frame_crop_left_offset); /* frame_crop_left_offset */
424 bitstream_put_ue(bs, seq_param.frame_crop_right_offset); /* frame_crop_right_offset */
425 bitstream_put_ue(bs, seq_param.frame_crop_top_offset); /* frame_crop_top_offset */
426 bitstream_put_ue(bs, seq_param.frame_crop_bottom_offset); /* frame_crop_bottom_offset */
429 //if ( frame_bit_rate < 0 ) { //TODO EW: the vui header isn't correct
431 bitstream_put_ui(bs, 0, 1); /* vui_parameters_present_flag */
433 bitstream_put_ui(bs, 1, 1); /* vui_parameters_present_flag */
434 bitstream_put_ui(bs, 0, 1); /* aspect_ratio_info_present_flag */
435 bitstream_put_ui(bs, 0, 1); /* overscan_info_present_flag */
436 bitstream_put_ui(bs, 1, 1); /* video_signal_type_present_flag */
438 bitstream_put_ui(bs, 5, 3); /* video_format (5 = Unspecified) */
439 bitstream_put_ui(bs, 0, 1); /* video_full_range_flag */
440 bitstream_put_ui(bs, 1, 1); /* colour_description_present_flag */
442 bitstream_put_ui(bs, 1, 8); /* colour_primaries (1 = BT.709) */
443 bitstream_put_ui(bs, 2, 8); /* transfer_characteristics (2 = unspecified, since we use sRGB) */
444 bitstream_put_ui(bs, 6, 8); /* matrix_coefficients (6 = BT.601/SMPTE 170M) */
447 bitstream_put_ui(bs, 0, 1); /* chroma_loc_info_present_flag */
448 bitstream_put_ui(bs, 1, 1); /* timing_info_present_flag */
450 bitstream_put_ui(bs, 1, 32); // FPS
451 bitstream_put_ui(bs, TIMEBASE * 2, 32); // FPS
452 bitstream_put_ui(bs, 1, 1);
454 bitstream_put_ui(bs, 1, 1); /* nal_hrd_parameters_present_flag */
457 bitstream_put_ue(bs, 0); /* cpb_cnt_minus1 */
458 bitstream_put_ui(bs, 4, 4); /* bit_rate_scale */
459 bitstream_put_ui(bs, 6, 4); /* cpb_size_scale */
461 bitstream_put_ue(bs, frame_bitrate - 1); /* bit_rate_value_minus1[0] */
462 bitstream_put_ue(bs, frame_bitrate*8 - 1); /* cpb_size_value_minus1[0] */
463 bitstream_put_ui(bs, 1, 1); /* cbr_flag[0] */
465 bitstream_put_ui(bs, 23, 5); /* initial_cpb_removal_delay_length_minus1 */
466 bitstream_put_ui(bs, 23, 5); /* cpb_removal_delay_length_minus1 */
467 bitstream_put_ui(bs, 23, 5); /* dpb_output_delay_length_minus1 */
468 bitstream_put_ui(bs, 23, 5); /* time_offset_length */
470 bitstream_put_ui(bs, 0, 1); /* vcl_hrd_parameters_present_flag */
471 bitstream_put_ui(bs, 0, 1); /* low_delay_hrd_flag */
473 bitstream_put_ui(bs, 0, 1); /* pic_struct_present_flag */
474 bitstream_put_ui(bs, 0, 1); /* bitstream_restriction_flag */
477 rbsp_trailing_bits(bs); /* rbsp_trailing_bits */
481 void H264EncoderImpl::pps_rbsp(bitstream *bs)
483 bitstream_put_ue(bs, pic_param.pic_parameter_set_id); /* pic_parameter_set_id */
484 bitstream_put_ue(bs, pic_param.seq_parameter_set_id); /* seq_parameter_set_id */
486 bitstream_put_ui(bs, pic_param.pic_fields.bits.entropy_coding_mode_flag, 1); /* entropy_coding_mode_flag */
488 bitstream_put_ui(bs, 0, 1); /* pic_order_present_flag: 0 */
490 bitstream_put_ue(bs, 0); /* num_slice_groups_minus1 */
492 bitstream_put_ue(bs, pic_param.num_ref_idx_l0_active_minus1); /* num_ref_idx_l0_active_minus1 */
493 bitstream_put_ue(bs, pic_param.num_ref_idx_l1_active_minus1); /* num_ref_idx_l1_active_minus1 1 */
495 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_pred_flag, 1); /* weighted_pred_flag: 0 */
496 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_bipred_idc, 2); /* weighted_bipred_idc: 0 */
498 bitstream_put_se(bs, pic_param.pic_init_qp - 26); /* pic_init_qp_minus26 */
499 bitstream_put_se(bs, 0); /* pic_init_qs_minus26 */
500 bitstream_put_se(bs, 0); /* chroma_qp_index_offset */
502 bitstream_put_ui(bs, pic_param.pic_fields.bits.deblocking_filter_control_present_flag, 1); /* deblocking_filter_control_present_flag */
503 bitstream_put_ui(bs, 0, 1); /* constrained_intra_pred_flag */
504 bitstream_put_ui(bs, 0, 1); /* redundant_pic_cnt_present_flag */
507 bitstream_put_ui(bs, pic_param.pic_fields.bits.transform_8x8_mode_flag, 1); /*transform_8x8_mode_flag */
508 bitstream_put_ui(bs, 0, 1); /* pic_scaling_matrix_present_flag */
509 bitstream_put_se(bs, pic_param.second_chroma_qp_index_offset ); /*second_chroma_qp_index_offset */
511 rbsp_trailing_bits(bs);
514 void H264EncoderImpl::slice_header(bitstream *bs)
516 int first_mb_in_slice = slice_param.macroblock_address;
518 bitstream_put_ue(bs, first_mb_in_slice); /* first_mb_in_slice: 0 */
519 bitstream_put_ue(bs, slice_param.slice_type); /* slice_type */
520 bitstream_put_ue(bs, slice_param.pic_parameter_set_id); /* pic_parameter_set_id: 0 */
521 bitstream_put_ui(bs, pic_param.frame_num, seq_param.seq_fields.bits.log2_max_frame_num_minus4 + 4); /* frame_num */
523 /* frame_mbs_only_flag == 1 */
524 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
529 if (pic_param.pic_fields.bits.idr_pic_flag)
530 bitstream_put_ue(bs, slice_param.idr_pic_id); /* idr_pic_id: 0 */
532 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0) {
533 bitstream_put_ui(bs, pic_param.CurrPic.TopFieldOrderCnt, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 + 4);
534 /* pic_order_present_flag == 0 */
540 /* redundant_pic_cnt_present_flag == 0 */
542 if (IS_P_SLICE(slice_param.slice_type)) {
543 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
545 if (slice_param.num_ref_idx_active_override_flag)
546 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
548 /* ref_pic_list_reordering */
549 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
550 } else if (IS_B_SLICE(slice_param.slice_type)) {
551 bitstream_put_ui(bs, slice_param.direct_spatial_mv_pred_flag, 1); /* direct_spatial_mv_pred: 1 */
553 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
555 if (slice_param.num_ref_idx_active_override_flag) {
556 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
557 bitstream_put_ue(bs, slice_param.num_ref_idx_l1_active_minus1);
560 /* ref_pic_list_reordering */
561 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
562 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l1: 0 */
565 if ((pic_param.pic_fields.bits.weighted_pred_flag &&
566 IS_P_SLICE(slice_param.slice_type)) ||
567 ((pic_param.pic_fields.bits.weighted_bipred_idc == 1) &&
568 IS_B_SLICE(slice_param.slice_type))) {
569 /* FIXME: fill weight/offset table */
573 /* dec_ref_pic_marking */
574 if (pic_param.pic_fields.bits.reference_pic_flag) { /* nal_ref_idc != 0 */
575 unsigned char no_output_of_prior_pics_flag = 0;
576 unsigned char long_term_reference_flag = 0;
577 unsigned char adaptive_ref_pic_marking_mode_flag = 0;
579 if (pic_param.pic_fields.bits.idr_pic_flag) {
580 bitstream_put_ui(bs, no_output_of_prior_pics_flag, 1); /* no_output_of_prior_pics_flag: 0 */
581 bitstream_put_ui(bs, long_term_reference_flag, 1); /* long_term_reference_flag: 0 */
583 bitstream_put_ui(bs, adaptive_ref_pic_marking_mode_flag, 1); /* adaptive_ref_pic_marking_mode_flag: 0 */
587 if (pic_param.pic_fields.bits.entropy_coding_mode_flag &&
588 !IS_I_SLICE(slice_param.slice_type))
589 bitstream_put_ue(bs, slice_param.cabac_init_idc); /* cabac_init_idc: 0 */
591 bitstream_put_se(bs, slice_param.slice_qp_delta); /* slice_qp_delta: 0 */
593 /* ignore for SP/SI */
595 if (pic_param.pic_fields.bits.deblocking_filter_control_present_flag) {
596 bitstream_put_ue(bs, slice_param.disable_deblocking_filter_idc); /* disable_deblocking_filter_idc: 0 */
598 if (slice_param.disable_deblocking_filter_idc != 1) {
599 bitstream_put_se(bs, slice_param.slice_alpha_c0_offset_div2); /* slice_alpha_c0_offset_div2: 2 */
600 bitstream_put_se(bs, slice_param.slice_beta_offset_div2); /* slice_beta_offset_div2: 2 */
604 if (pic_param.pic_fields.bits.entropy_coding_mode_flag) {
605 bitstream_byte_aligning(bs, 1);
609 int H264EncoderImpl::build_packed_pic_buffer(unsigned char **header_buffer)
613 bitstream_start(&bs);
614 nal_start_code_prefix(&bs);
615 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_PPS);
619 *header_buffer = (unsigned char *)bs.buffer;
620 return bs.bit_offset;
624 H264EncoderImpl::build_packed_seq_buffer(unsigned char **header_buffer)
628 bitstream_start(&bs);
629 nal_start_code_prefix(&bs);
630 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_SPS);
634 *header_buffer = (unsigned char *)bs.buffer;
635 return bs.bit_offset;
638 int H264EncoderImpl::build_packed_slice_buffer(unsigned char **header_buffer)
641 int is_idr = !!pic_param.pic_fields.bits.idr_pic_flag;
642 int is_ref = !!pic_param.pic_fields.bits.reference_pic_flag;
644 bitstream_start(&bs);
645 nal_start_code_prefix(&bs);
647 if (IS_I_SLICE(slice_param.slice_type)) {
648 nal_header(&bs, NAL_REF_IDC_HIGH, is_idr ? NAL_IDR : NAL_NON_IDR);
649 } else if (IS_P_SLICE(slice_param.slice_type)) {
650 nal_header(&bs, NAL_REF_IDC_MEDIUM, NAL_NON_IDR);
652 assert(IS_B_SLICE(slice_param.slice_type));
653 nal_header(&bs, is_ref ? NAL_REF_IDC_LOW : NAL_REF_IDC_NONE, NAL_NON_IDR);
659 *header_buffer = (unsigned char *)bs.buffer;
660 return bs.bit_offset;
665 Assume frame sequence is: Frame#0, #1, #2, ..., #M, ..., #X, ... (encoding order)
666 1) period between Frame #X and Frame #N = #X - #N
667 2) 0 means infinite for intra_period/intra_idr_period, and 0 is invalid for ip_period
668 3) intra_idr_period % intra_period (intra_period > 0) and intra_period % ip_period must be 0
669 4) intra_period and intra_idr_period take precedence over ip_period
670 5) if ip_period > 1, intra_period and intra_idr_period are not the strict periods
671 of I/IDR frames, see bellow examples
672 -------------------------------------------------------------------
673 intra_period intra_idr_period ip_period frame sequence (intra_period/intra_idr_period/ip_period)
674 0 ignored 1 IDRPPPPPPP ... (No IDR/I any more)
675 0 ignored >=2 IDR(PBB)(PBB)... (No IDR/I any more)
676 1 0 ignored IDRIIIIIII... (No IDR any more)
677 1 1 ignored IDR IDR IDR IDR...
678 1 >=2 ignored IDRII IDRII IDR... (1/3/ignore)
679 >=2 0 1 IDRPPP IPPP I... (3/0/1)
680 >=2 0 >=2 IDR(PBB)(PBB)(IBB) (6/0/3)
681 (PBB)(IBB)(PBB)(IBB)...
682 >=2 >=2 1 IDRPPPPP IPPPPP IPPPPP (6/18/1)
683 IDRPPPPP IPPPPP IPPPPP...
684 >=2 >=2 >=2 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)} (6/18/3)
685 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)}...
686 {IDR(PBB)(PBB)(IBB)(PBB)} (6/12/3)
687 {IDR(PBB)(PBB)(IBB)(PBB)}...
688 {IDR(PBB)(PBB)} (6/6/3)
692 // General pts/dts strategy:
694 // Getting pts and dts right with variable frame rate (VFR) and B-frames can be a
695 // bit tricky. We assume first of all that the frame rate never goes _above_
696 // MAX_FPS, which gives us a frame period N. The decoder can always decode
697 // in at least this speed, as long at dts <= pts (the frame is not attempted
698 // presented before it is decoded). Furthermore, we never have longer chains of
699 // B-frames than a fixed constant C. (In a B-frame chain, we say that the base
700 // I/P-frame has order O=0, the B-frame depending on it directly has order O=1,
701 // etc. The last frame in the chain, which no B-frames depend on, is the “tip”
702 // frame, with an order O <= C.)
704 // Many strategies are possible, but we establish these rules:
706 // - Tip frames have dts = pts - (C-O)*N.
707 // - Non-tip frames have dts = dts_last + N.
709 // An example, with C=2 and N=10 and the data flow showed with arrows:
712 // pts: 30 40 50 60 70 80
714 // dts: 10 30 20 60 50←40
719 // To show that this works fine also with irregular spacings, let's say that
720 // the third frame is delayed a bit (something earlier was dropped). Now the
721 // situation looks like this:
724 // pts: 30 40 80 90 100 110
726 // dts: 10 30 20 90 50←40
731 // The resetting on every tip frame makes sure dts never ends up lagging a lot
732 // behind pts, and the subtraction of (C-O)*N makes sure pts <= dts.
734 // In the output of this function, if <dts_lag> is >= 0, it means to reset the
735 // dts from the current pts minus <dts_lag>, while if it's -1, the frame is not
736 // a tip frame and should be given a dts based on the previous one.
741 void encoding2display_order(
742 int encoding_order, int intra_period,
743 int intra_idr_period, int ip_period,
744 int *displaying_order,
745 int *frame_type, int *pts_lag)
747 int encoding_order_gop = 0;
751 if (intra_period == 1) { /* all are I/IDR frames */
752 *displaying_order = encoding_order;
753 if (intra_idr_period == 0)
754 *frame_type = (encoding_order == 0)?FRAME_IDR:FRAME_I;
756 *frame_type = (encoding_order % intra_idr_period == 0)?FRAME_IDR:FRAME_I;
760 if (intra_period == 0)
761 intra_idr_period = 0;
763 if (ip_period == 1) {
764 // No B-frames, sequence is like IDR PPPPP IPPPPP.
765 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % intra_idr_period);
766 *displaying_order = encoding_order;
768 if (encoding_order_gop == 0) { /* the first frame */
769 *frame_type = FRAME_IDR;
770 } else if (intra_period != 0 && /* have I frames */
771 encoding_order_gop >= 2 &&
772 (encoding_order_gop % intra_period == 0)) {
773 *frame_type = FRAME_I;
775 *frame_type = FRAME_P;
780 // We have B-frames. Sequence is like IDR (PBB)(PBB)(IBB)(PBB).
781 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % (intra_idr_period + 1));
782 *pts_lag = -1; // Most frames are not tip frames.
784 if (encoding_order_gop == 0) { /* the first frame */
785 *frame_type = FRAME_IDR;
786 *displaying_order = encoding_order;
787 // IDR frames are a special case; I honestly can't find the logic behind
788 // why this is the right thing, but it seems to line up nicely in practice :-)
789 *pts_lag = TIMEBASE / MAX_FPS;
790 } else if (((encoding_order_gop - 1) % ip_period) != 0) { /* B frames */
791 *frame_type = FRAME_B;
792 *displaying_order = encoding_order - 1;
793 if ((encoding_order_gop % ip_period) == 0) {
794 *pts_lag = 0; // Last B-frame.
796 } else if (intra_period != 0 && /* have I frames */
797 encoding_order_gop >= 2 &&
798 ((encoding_order_gop - 1) / ip_period % (intra_period / ip_period)) == 0) {
799 *frame_type = FRAME_I;
800 *displaying_order = encoding_order + ip_period - 1;
802 *frame_type = FRAME_P;
803 *displaying_order = encoding_order + ip_period - 1;
808 static const char *rc_to_string(int rc_mode)
821 case VA_RC_VBR_CONSTRAINED:
822 return "VBR_CONSTRAINED";
828 VADisplay H264EncoderImpl::va_open_display(void)
830 x11_display = XOpenDisplay(NULL);
832 fprintf(stderr, "error: can't connect to X server!\n");
835 return vaGetDisplay(x11_display);
838 void H264EncoderImpl::va_close_display(VADisplay va_dpy)
844 XUnmapWindow(x11_display, x11_window);
845 XDestroyWindow(x11_display, x11_window);
848 XCloseDisplay(x11_display);
852 int H264EncoderImpl::init_va()
854 VAProfile profile_list[]={VAProfileH264High, VAProfileH264Main, VAProfileH264Baseline, VAProfileH264ConstrainedBaseline};
855 VAEntrypoint *entrypoints;
856 int num_entrypoints, slice_entrypoint;
857 int support_encode = 0;
858 int major_ver, minor_ver;
862 va_dpy = va_open_display();
863 va_status = vaInitialize(va_dpy, &major_ver, &minor_ver);
864 CHECK_VASTATUS(va_status, "vaInitialize");
866 num_entrypoints = vaMaxNumEntrypoints(va_dpy);
867 entrypoints = (VAEntrypoint *)malloc(num_entrypoints * sizeof(*entrypoints));
869 fprintf(stderr, "error: failed to initialize VA entrypoints array\n");
873 /* use the highest profile */
874 for (i = 0; i < sizeof(profile_list)/sizeof(profile_list[0]); i++) {
875 if ((h264_profile != ~0) && h264_profile != profile_list[i])
878 h264_profile = profile_list[i];
879 vaQueryConfigEntrypoints(va_dpy, h264_profile, entrypoints, &num_entrypoints);
880 for (slice_entrypoint = 0; slice_entrypoint < num_entrypoints; slice_entrypoint++) {
881 if (entrypoints[slice_entrypoint] == VAEntrypointEncSlice) {
886 if (support_encode == 1)
890 if (support_encode == 0) {
891 printf("Can't find VAEntrypointEncSlice for H264 profiles\n");
894 switch (h264_profile) {
895 case VAProfileH264Baseline:
897 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
898 h264_entropy_mode = 0;
900 case VAProfileH264ConstrainedBaseline:
901 constraint_set_flag |= (1 << 0 | 1 << 1); /* Annex A.2.2 */
905 case VAProfileH264Main:
906 constraint_set_flag |= (1 << 1); /* Annex A.2.2 */
909 case VAProfileH264High:
910 constraint_set_flag |= (1 << 3); /* Annex A.2.4 */
913 h264_profile = VAProfileH264Baseline;
915 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
920 VAConfigAttrib attrib[VAConfigAttribTypeMax];
922 /* find out the format for the render target, and rate control mode */
923 for (i = 0; i < VAConfigAttribTypeMax; i++)
924 attrib[i].type = (VAConfigAttribType)i;
926 va_status = vaGetConfigAttributes(va_dpy, h264_profile, VAEntrypointEncSlice,
927 &attrib[0], VAConfigAttribTypeMax);
928 CHECK_VASTATUS(va_status, "vaGetConfigAttributes");
929 /* check the interested configattrib */
930 if ((attrib[VAConfigAttribRTFormat].value & VA_RT_FORMAT_YUV420) == 0) {
931 printf("Not find desired YUV420 RT format\n");
934 config_attrib[config_attrib_num].type = VAConfigAttribRTFormat;
935 config_attrib[config_attrib_num].value = VA_RT_FORMAT_YUV420;
939 if (attrib[VAConfigAttribRateControl].value != VA_ATTRIB_NOT_SUPPORTED) {
940 int tmp = attrib[VAConfigAttribRateControl].value;
942 if (rc_mode == -1 || !(rc_mode & tmp)) {
944 printf("Warning: Don't support the specified RateControl mode: %s!!!, switch to ", rc_to_string(rc_mode));
947 for (i = 0; i < sizeof(rc_default_modes) / sizeof(rc_default_modes[0]); i++) {
948 if (rc_default_modes[i] & tmp) {
949 rc_mode = rc_default_modes[i];
955 config_attrib[config_attrib_num].type = VAConfigAttribRateControl;
956 config_attrib[config_attrib_num].value = rc_mode;
961 if (attrib[VAConfigAttribEncPackedHeaders].value != VA_ATTRIB_NOT_SUPPORTED) {
962 int tmp = attrib[VAConfigAttribEncPackedHeaders].value;
964 h264_packedheader = 1;
965 config_attrib[config_attrib_num].type = VAConfigAttribEncPackedHeaders;
966 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
968 if (tmp & VA_ENC_PACKED_HEADER_SEQUENCE) {
969 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SEQUENCE;
972 if (tmp & VA_ENC_PACKED_HEADER_PICTURE) {
973 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_PICTURE;
976 if (tmp & VA_ENC_PACKED_HEADER_SLICE) {
977 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SLICE;
980 if (tmp & VA_ENC_PACKED_HEADER_MISC) {
981 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_MISC;
984 enc_packed_header_idx = config_attrib_num;
988 if (attrib[VAConfigAttribEncInterlaced].value != VA_ATTRIB_NOT_SUPPORTED) {
989 config_attrib[config_attrib_num].type = VAConfigAttribEncInterlaced;
990 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
994 if (attrib[VAConfigAttribEncMaxRefFrames].value != VA_ATTRIB_NOT_SUPPORTED) {
995 h264_maxref = attrib[VAConfigAttribEncMaxRefFrames].value;
1002 int H264EncoderImpl::setup_encode()
1005 VASurfaceID *tmp_surfaceid;
1006 int codedbuf_size, i;
1007 static VASurfaceID src_surface[SURFACE_NUM];
1008 static VASurfaceID ref_surface[SURFACE_NUM];
1010 va_status = vaCreateConfig(va_dpy, h264_profile, VAEntrypointEncSlice,
1011 &config_attrib[0], config_attrib_num, &config_id);
1012 CHECK_VASTATUS(va_status, "vaCreateConfig");
1014 /* create source surfaces */
1015 va_status = vaCreateSurfaces(va_dpy,
1016 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
1017 &src_surface[0], SURFACE_NUM,
1019 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
1021 /* create reference surfaces */
1022 va_status = vaCreateSurfaces(va_dpy,
1023 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
1024 &ref_surface[0], SURFACE_NUM,
1026 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
1028 tmp_surfaceid = (VASurfaceID *)calloc(2 * SURFACE_NUM, sizeof(VASurfaceID));
1029 memcpy(tmp_surfaceid, src_surface, SURFACE_NUM * sizeof(VASurfaceID));
1030 memcpy(tmp_surfaceid + SURFACE_NUM, ref_surface, SURFACE_NUM * sizeof(VASurfaceID));
1032 /* Create a context for this encode pipe */
1033 va_status = vaCreateContext(va_dpy, config_id,
1034 frame_width_mbaligned, frame_height_mbaligned,
1036 tmp_surfaceid, 2 * SURFACE_NUM,
1038 CHECK_VASTATUS(va_status, "vaCreateContext");
1039 free(tmp_surfaceid);
1041 codedbuf_size = (frame_width_mbaligned * frame_height_mbaligned * 400) / (16*16);
1043 for (i = 0; i < SURFACE_NUM; i++) {
1044 /* create coded buffer once for all
1045 * other VA buffers which won't be used again after vaRenderPicture.
1046 * so APP can always vaCreateBuffer for every frame
1047 * but coded buffer need to be mapped and accessed after vaRenderPicture/vaEndPicture
1048 * so VA won't maintain the coded buffer
1050 va_status = vaCreateBuffer(va_dpy, context_id, VAEncCodedBufferType,
1051 codedbuf_size, 1, NULL, &gl_surfaces[i].coded_buf);
1052 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1055 /* create OpenGL objects */
1056 //glGenFramebuffers(SURFACE_NUM, fbos);
1058 for (i = 0; i < SURFACE_NUM; i++) {
1059 glGenTextures(1, &gl_surfaces[i].y_tex);
1060 glGenTextures(1, &gl_surfaces[i].cbcr_tex);
1063 for (i = 0; i < SURFACE_NUM; i++) {
1064 gl_surfaces[i].src_surface = src_surface[i];
1065 gl_surfaces[i].ref_surface = ref_surface[i];
1071 // Given a list like 1 9 3 0 2 8 4 and a pivot element 3, will produce
1074 template<class T, class C>
1075 static void sort_two(T *begin, T *end, const T &pivot, const C &less_than)
1077 T *middle = partition(begin, end, [&](const T &elem) { return less_than(elem, pivot); });
1078 sort(begin, middle, [&](const T &a, const T &b) { return less_than(b, a); });
1079 sort(middle, end, less_than);
1082 void H264EncoderImpl::update_ReferenceFrames(int frame_type)
1086 if (frame_type == FRAME_B)
1089 CurrentCurrPic.flags = VA_PICTURE_H264_SHORT_TERM_REFERENCE;
1091 if (numShortTerm > num_ref_frames)
1092 numShortTerm = num_ref_frames;
1093 for (i=numShortTerm-1; i>0; i--)
1094 ReferenceFrames[i] = ReferenceFrames[i-1];
1095 ReferenceFrames[0] = CurrentCurrPic;
1097 current_frame_num++;
1098 if (current_frame_num > MaxFrameNum)
1099 current_frame_num = 0;
1103 int H264EncoderImpl::update_RefPicList(int frame_type)
1105 const auto descending_by_frame_idx = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1106 return a.frame_idx > b.frame_idx;
1108 const auto ascending_by_top_field_order_cnt = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1109 return a.TopFieldOrderCnt < b.TopFieldOrderCnt;
1111 const auto descending_by_top_field_order_cnt = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1112 return a.TopFieldOrderCnt > b.TopFieldOrderCnt;
1115 if (frame_type == FRAME_P) {
1116 memcpy(RefPicList0_P, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1117 sort(&RefPicList0_P[0], &RefPicList0_P[numShortTerm], descending_by_frame_idx);
1118 } else if (frame_type == FRAME_B) {
1119 memcpy(RefPicList0_B, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1120 sort_two(&RefPicList0_B[0], &RefPicList0_B[numShortTerm], CurrentCurrPic, ascending_by_top_field_order_cnt);
1122 memcpy(RefPicList1_B, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1123 sort_two(&RefPicList1_B[0], &RefPicList1_B[numShortTerm], CurrentCurrPic, descending_by_top_field_order_cnt);
1130 int H264EncoderImpl::render_sequence()
1132 VABufferID seq_param_buf, rc_param_buf, render_id[2];
1134 VAEncMiscParameterBuffer *misc_param;
1135 VAEncMiscParameterRateControl *misc_rate_ctrl;
1137 seq_param.level_idc = 41 /*SH_LEVEL_3*/;
1138 seq_param.picture_width_in_mbs = frame_width_mbaligned / 16;
1139 seq_param.picture_height_in_mbs = frame_height_mbaligned / 16;
1140 seq_param.bits_per_second = frame_bitrate;
1142 seq_param.intra_period = intra_period;
1143 seq_param.intra_idr_period = intra_idr_period;
1144 seq_param.ip_period = ip_period;
1146 seq_param.max_num_ref_frames = num_ref_frames;
1147 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1148 seq_param.time_scale = TIMEBASE * 2;
1149 seq_param.num_units_in_tick = 1; /* Tc = num_units_in_tick / scale */
1150 seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 = Log2MaxPicOrderCntLsb - 4;
1151 seq_param.seq_fields.bits.log2_max_frame_num_minus4 = Log2MaxFrameNum - 4;;
1152 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1153 seq_param.seq_fields.bits.chroma_format_idc = 1;
1154 seq_param.seq_fields.bits.direct_8x8_inference_flag = 1;
1156 if (frame_width != frame_width_mbaligned ||
1157 frame_height != frame_height_mbaligned) {
1158 seq_param.frame_cropping_flag = 1;
1159 seq_param.frame_crop_left_offset = 0;
1160 seq_param.frame_crop_right_offset = (frame_width_mbaligned - frame_width)/2;
1161 seq_param.frame_crop_top_offset = 0;
1162 seq_param.frame_crop_bottom_offset = (frame_height_mbaligned - frame_height)/2;
1165 va_status = vaCreateBuffer(va_dpy, context_id,
1166 VAEncSequenceParameterBufferType,
1167 sizeof(seq_param), 1, &seq_param, &seq_param_buf);
1168 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1170 va_status = vaCreateBuffer(va_dpy, context_id,
1171 VAEncMiscParameterBufferType,
1172 sizeof(VAEncMiscParameterBuffer) + sizeof(VAEncMiscParameterRateControl),
1173 1, NULL, &rc_param_buf);
1174 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1176 vaMapBuffer(va_dpy, rc_param_buf, (void **)&misc_param);
1177 misc_param->type = VAEncMiscParameterTypeRateControl;
1178 misc_rate_ctrl = (VAEncMiscParameterRateControl *)misc_param->data;
1179 memset(misc_rate_ctrl, 0, sizeof(*misc_rate_ctrl));
1180 misc_rate_ctrl->bits_per_second = frame_bitrate;
1181 misc_rate_ctrl->target_percentage = 66;
1182 misc_rate_ctrl->window_size = 1000;
1183 misc_rate_ctrl->initial_qp = initial_qp;
1184 misc_rate_ctrl->min_qp = minimal_qp;
1185 misc_rate_ctrl->basic_unit_size = 0;
1186 vaUnmapBuffer(va_dpy, rc_param_buf);
1188 render_id[0] = seq_param_buf;
1189 render_id[1] = rc_param_buf;
1191 render_picture_and_delete(va_dpy, context_id, &render_id[0], 2);
1196 static int calc_poc(int pic_order_cnt_lsb, int frame_type)
1198 static int PicOrderCntMsb_ref = 0, pic_order_cnt_lsb_ref = 0;
1199 int prevPicOrderCntMsb, prevPicOrderCntLsb;
1200 int PicOrderCntMsb, TopFieldOrderCnt;
1202 if (frame_type == FRAME_IDR)
1203 prevPicOrderCntMsb = prevPicOrderCntLsb = 0;
1205 prevPicOrderCntMsb = PicOrderCntMsb_ref;
1206 prevPicOrderCntLsb = pic_order_cnt_lsb_ref;
1209 if ((pic_order_cnt_lsb < prevPicOrderCntLsb) &&
1210 ((prevPicOrderCntLsb - pic_order_cnt_lsb) >= (int)(MaxPicOrderCntLsb / 2)))
1211 PicOrderCntMsb = prevPicOrderCntMsb + MaxPicOrderCntLsb;
1212 else if ((pic_order_cnt_lsb > prevPicOrderCntLsb) &&
1213 ((pic_order_cnt_lsb - prevPicOrderCntLsb) > (int)(MaxPicOrderCntLsb / 2)))
1214 PicOrderCntMsb = prevPicOrderCntMsb - MaxPicOrderCntLsb;
1216 PicOrderCntMsb = prevPicOrderCntMsb;
1218 TopFieldOrderCnt = PicOrderCntMsb + pic_order_cnt_lsb;
1220 if (frame_type != FRAME_B) {
1221 PicOrderCntMsb_ref = PicOrderCntMsb;
1222 pic_order_cnt_lsb_ref = pic_order_cnt_lsb;
1225 return TopFieldOrderCnt;
1228 int H264EncoderImpl::render_picture(int frame_type, int display_frame_num, int gop_start_display_frame_num)
1230 VABufferID pic_param_buf;
1234 pic_param.CurrPic.picture_id = gl_surfaces[display_frame_num % SURFACE_NUM].ref_surface;
1235 pic_param.CurrPic.frame_idx = current_frame_num;
1236 pic_param.CurrPic.flags = 0;
1237 pic_param.CurrPic.TopFieldOrderCnt = calc_poc((display_frame_num - gop_start_display_frame_num) % MaxPicOrderCntLsb, frame_type);
1238 pic_param.CurrPic.BottomFieldOrderCnt = pic_param.CurrPic.TopFieldOrderCnt;
1239 CurrentCurrPic = pic_param.CurrPic;
1241 memcpy(pic_param.ReferenceFrames, ReferenceFrames, numShortTerm*sizeof(VAPictureH264));
1242 for (i = numShortTerm; i < SURFACE_NUM; i++) {
1243 pic_param.ReferenceFrames[i].picture_id = VA_INVALID_SURFACE;
1244 pic_param.ReferenceFrames[i].flags = VA_PICTURE_H264_INVALID;
1247 pic_param.pic_fields.bits.idr_pic_flag = (frame_type == FRAME_IDR);
1248 pic_param.pic_fields.bits.reference_pic_flag = (frame_type != FRAME_B);
1249 pic_param.pic_fields.bits.entropy_coding_mode_flag = h264_entropy_mode;
1250 pic_param.pic_fields.bits.deblocking_filter_control_present_flag = 1;
1251 pic_param.frame_num = current_frame_num;
1252 pic_param.coded_buf = gl_surfaces[display_frame_num % SURFACE_NUM].coded_buf;
1253 pic_param.last_picture = false; // FIXME
1254 pic_param.pic_init_qp = initial_qp;
1256 va_status = vaCreateBuffer(va_dpy, context_id, VAEncPictureParameterBufferType,
1257 sizeof(pic_param), 1, &pic_param, &pic_param_buf);
1258 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1260 render_picture_and_delete(va_dpy, context_id, &pic_param_buf, 1);
1265 int H264EncoderImpl::render_packedsequence()
1267 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1268 VABufferID packedseq_para_bufid, packedseq_data_bufid, render_id[2];
1269 unsigned int length_in_bits;
1270 unsigned char *packedseq_buffer = NULL;
1273 length_in_bits = build_packed_seq_buffer(&packedseq_buffer);
1275 packedheader_param_buffer.type = VAEncPackedHeaderSequence;
1277 packedheader_param_buffer.bit_length = length_in_bits; /*length_in_bits*/
1278 packedheader_param_buffer.has_emulation_bytes = 0;
1279 va_status = vaCreateBuffer(va_dpy,
1281 VAEncPackedHeaderParameterBufferType,
1282 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1283 &packedseq_para_bufid);
1284 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1286 va_status = vaCreateBuffer(va_dpy,
1288 VAEncPackedHeaderDataBufferType,
1289 (length_in_bits + 7) / 8, 1, packedseq_buffer,
1290 &packedseq_data_bufid);
1291 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1293 render_id[0] = packedseq_para_bufid;
1294 render_id[1] = packedseq_data_bufid;
1295 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1297 free(packedseq_buffer);
1303 int H264EncoderImpl::render_packedpicture()
1305 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1306 VABufferID packedpic_para_bufid, packedpic_data_bufid, render_id[2];
1307 unsigned int length_in_bits;
1308 unsigned char *packedpic_buffer = NULL;
1311 length_in_bits = build_packed_pic_buffer(&packedpic_buffer);
1312 packedheader_param_buffer.type = VAEncPackedHeaderPicture;
1313 packedheader_param_buffer.bit_length = length_in_bits;
1314 packedheader_param_buffer.has_emulation_bytes = 0;
1316 va_status = vaCreateBuffer(va_dpy,
1318 VAEncPackedHeaderParameterBufferType,
1319 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1320 &packedpic_para_bufid);
1321 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1323 va_status = vaCreateBuffer(va_dpy,
1325 VAEncPackedHeaderDataBufferType,
1326 (length_in_bits + 7) / 8, 1, packedpic_buffer,
1327 &packedpic_data_bufid);
1328 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1330 render_id[0] = packedpic_para_bufid;
1331 render_id[1] = packedpic_data_bufid;
1332 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1334 free(packedpic_buffer);
1339 void H264EncoderImpl::render_packedslice()
1341 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1342 VABufferID packedslice_para_bufid, packedslice_data_bufid, render_id[2];
1343 unsigned int length_in_bits;
1344 unsigned char *packedslice_buffer = NULL;
1347 length_in_bits = build_packed_slice_buffer(&packedslice_buffer);
1348 packedheader_param_buffer.type = VAEncPackedHeaderSlice;
1349 packedheader_param_buffer.bit_length = length_in_bits;
1350 packedheader_param_buffer.has_emulation_bytes = 0;
1352 va_status = vaCreateBuffer(va_dpy,
1354 VAEncPackedHeaderParameterBufferType,
1355 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1356 &packedslice_para_bufid);
1357 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1359 va_status = vaCreateBuffer(va_dpy,
1361 VAEncPackedHeaderDataBufferType,
1362 (length_in_bits + 7) / 8, 1, packedslice_buffer,
1363 &packedslice_data_bufid);
1364 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1366 render_id[0] = packedslice_para_bufid;
1367 render_id[1] = packedslice_data_bufid;
1368 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1370 free(packedslice_buffer);
1373 int H264EncoderImpl::render_slice(int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num, int frame_type)
1375 VABufferID slice_param_buf;
1379 update_RefPicList(frame_type);
1381 /* one frame, one slice */
1382 slice_param.macroblock_address = 0;
1383 slice_param.num_macroblocks = frame_width_mbaligned * frame_height_mbaligned/(16*16); /* Measured by MB */
1384 slice_param.slice_type = (frame_type == FRAME_IDR)?2:frame_type;
1385 if (frame_type == FRAME_IDR) {
1386 if (encoding_frame_num != 0)
1387 ++slice_param.idr_pic_id;
1388 } else if (frame_type == FRAME_P) {
1389 int refpiclist0_max = h264_maxref & 0xffff;
1390 memcpy(slice_param.RefPicList0, RefPicList0_P, refpiclist0_max*sizeof(VAPictureH264));
1392 for (i = refpiclist0_max; i < 32; i++) {
1393 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1394 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1396 } else if (frame_type == FRAME_B) {
1397 int refpiclist0_max = h264_maxref & 0xffff;
1398 int refpiclist1_max = (h264_maxref >> 16) & 0xffff;
1400 memcpy(slice_param.RefPicList0, RefPicList0_B, refpiclist0_max*sizeof(VAPictureH264));
1401 for (i = refpiclist0_max; i < 32; i++) {
1402 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1403 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1406 memcpy(slice_param.RefPicList1, RefPicList1_B, refpiclist1_max*sizeof(VAPictureH264));
1407 for (i = refpiclist1_max; i < 32; i++) {
1408 slice_param.RefPicList1[i].picture_id = VA_INVALID_SURFACE;
1409 slice_param.RefPicList1[i].flags = VA_PICTURE_H264_INVALID;
1413 slice_param.slice_alpha_c0_offset_div2 = 0;
1414 slice_param.slice_beta_offset_div2 = 0;
1415 slice_param.direct_spatial_mv_pred_flag = 1;
1416 slice_param.pic_order_cnt_lsb = (display_frame_num - gop_start_display_frame_num) % MaxPicOrderCntLsb;
1419 if (h264_packedheader &&
1420 config_attrib[enc_packed_header_idx].value & VA_ENC_PACKED_HEADER_SLICE)
1421 render_packedslice();
1423 va_status = vaCreateBuffer(va_dpy, context_id, VAEncSliceParameterBufferType,
1424 sizeof(slice_param), 1, &slice_param, &slice_param_buf);
1425 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1427 render_picture_and_delete(va_dpy, context_id, &slice_param_buf, 1);
1434 void H264EncoderImpl::save_codeddata(storage_task task)
1436 VACodedBufferSegment *buf_list = NULL;
1441 const int64_t global_delay = (ip_period - 1) * (TIMEBASE / MAX_FPS); // So we never get negative dts.
1443 va_status = vaMapBuffer(va_dpy, gl_surfaces[task.display_order % SURFACE_NUM].coded_buf, (void **)(&buf_list));
1444 CHECK_VASTATUS(va_status, "vaMapBuffer");
1445 while (buf_list != NULL) {
1446 data.append(reinterpret_cast<const char *>(buf_list->buf), buf_list->size);
1447 buf_list = (VACodedBufferSegment *) buf_list->next;
1449 vaUnmapBuffer(va_dpy, gl_surfaces[task.display_order % SURFACE_NUM].coded_buf);
1454 memset(&pkt, 0, sizeof(pkt));
1456 pkt.data = reinterpret_cast<uint8_t *>(&data[0]);
1457 pkt.size = data.size();
1458 pkt.stream_index = 0;
1459 if (task.frame_type == FRAME_IDR || task.frame_type == FRAME_I) {
1460 pkt.flags = AV_PKT_FLAG_KEY;
1465 httpd->add_packet(pkt, task.pts + global_delay, task.dts + global_delay);
1467 // Encode and add all audio frames up to and including the pts of this video frame.
1470 vector<float> audio;
1472 unique_lock<mutex> lock(frame_queue_mutex);
1473 frame_queue_nonempty.wait(lock, [this]{ return storage_thread_should_quit || !pending_audio_frames.empty(); });
1474 if (storage_thread_should_quit && pending_audio_frames.empty()) return;
1475 auto it = pending_audio_frames.begin();
1476 if (it->first > task.pts) break;
1477 audio_pts = it->first;
1478 audio = move(it->second);
1479 pending_audio_frames.erase(it);
1482 AVFrame *frame = avcodec_alloc_frame();
1483 frame->nb_samples = audio.size() / 2;
1484 frame->format = AV_SAMPLE_FMT_S32;
1485 frame->channel_layout = AV_CH_LAYOUT_STEREO;
1487 unique_ptr<int32_t[]> int_samples(new int32_t[audio.size()]);
1488 int ret = avcodec_fill_audio_frame(frame, 2, AV_SAMPLE_FMT_S32, (const uint8_t*)int_samples.get(), audio.size() * sizeof(int32_t), 1);
1490 fprintf(stderr, "avcodec_fill_audio_frame() failed with %d\n", ret);
1493 for (int i = 0; i < frame->nb_samples * 2; ++i) {
1494 if (audio[i] >= 1.0f) {
1495 int_samples[i] = 2147483647;
1496 } else if (audio[i] <= -1.0f) {
1497 int_samples[i] = -2147483647;
1499 int_samples[i] = lrintf(audio[i] * 2147483647.0f);
1504 av_init_packet(&pkt);
1508 avcodec_encode_audio2(context_audio, &pkt, frame, &got_output);
1510 pkt.stream_index = 1;
1511 httpd->add_packet(pkt, audio_pts + global_delay, audio_pts + global_delay);
1513 // TODO: Delayed frames.
1514 avcodec_free_frame(&frame);
1515 av_free_packet(&pkt);
1516 if (audio_pts == task.pts) break;
1520 printf("\r "); /* return back to startpoint */
1521 switch (encode_order % 4) {
1535 printf("%08lld", encode_order);
1540 // this is weird. but it seems to put a new frame onto the queue
1541 void H264EncoderImpl::storage_task_enqueue(storage_task task)
1543 unique_lock<mutex> lock(storage_task_queue_mutex);
1544 storage_task_queue.push(move(task));
1545 srcsurface_status[task.display_order % SURFACE_NUM] = SRC_SURFACE_IN_ENCODING;
1546 storage_task_queue_changed.notify_all();
1549 void H264EncoderImpl::storage_task_thread()
1552 storage_task current;
1554 // wait until there's an encoded frame
1555 unique_lock<mutex> lock(storage_task_queue_mutex);
1556 storage_task_queue_changed.wait(lock, [this]{ return storage_thread_should_quit || !storage_task_queue.empty(); });
1557 if (storage_thread_should_quit && storage_task_queue.empty()) return;
1558 current = move(storage_task_queue.front());
1559 storage_task_queue.pop();
1564 // waits for data, then saves it to disk.
1565 va_status = vaSyncSurface(va_dpy, gl_surfaces[current.display_order % SURFACE_NUM].src_surface);
1566 CHECK_VASTATUS(va_status, "vaSyncSurface");
1567 save_codeddata(move(current));
1570 unique_lock<mutex> lock(storage_task_queue_mutex);
1571 srcsurface_status[current.display_order % SURFACE_NUM] = SRC_SURFACE_FREE;
1572 storage_task_queue_changed.notify_all();
1577 int H264EncoderImpl::release_encode()
1581 for (i = 0; i < SURFACE_NUM; i++) {
1582 vaDestroyBuffer(va_dpy, gl_surfaces[i].coded_buf);
1583 vaDestroySurfaces(va_dpy, &gl_surfaces[i].src_surface, 1);
1584 vaDestroySurfaces(va_dpy, &gl_surfaces[i].ref_surface, 1);
1587 vaDestroyContext(va_dpy, context_id);
1588 vaDestroyConfig(va_dpy, config_id);
1593 int H264EncoderImpl::deinit_va()
1595 vaTerminate(va_dpy);
1597 va_close_display(va_dpy);
1603 H264EncoderImpl::H264EncoderImpl(QSurface *surface, int width, int height, HTTPD *httpd)
1604 : current_storage_frame(0), surface(surface), httpd(httpd)
1606 AVCodec *codec_audio = avcodec_find_encoder(AUDIO_OUTPUT_CODEC);
1607 context_audio = avcodec_alloc_context3(codec_audio);
1608 context_audio->bit_rate = AUDIO_OUTPUT_BIT_RATE;
1609 context_audio->sample_rate = OUTPUT_FREQUENCY;
1610 context_audio->sample_fmt = AUDIO_OUTPUT_SAMPLE_FMT;
1611 context_audio->channels = 2;
1612 context_audio->channel_layout = AV_CH_LAYOUT_STEREO;
1613 context_audio->time_base = AVRational{1, TIMEBASE};
1614 if (avcodec_open2(context_audio, codec_audio, NULL) < 0) {
1615 fprintf(stderr, "Could not open codec\n");
1619 frame_width = width;
1620 frame_height = height;
1621 frame_width_mbaligned = (frame_width + 15) & (~15);
1622 frame_height_mbaligned = (frame_height + 15) & (~15);
1629 // No frames are ready yet.
1630 memset(srcsurface_status, SRC_SURFACE_FREE, sizeof(srcsurface_status));
1632 memset(&seq_param, 0, sizeof(seq_param));
1633 memset(&pic_param, 0, sizeof(pic_param));
1634 memset(&slice_param, 0, sizeof(slice_param));
1636 storage_thread = thread(&H264EncoderImpl::storage_task_thread, this);
1638 encode_thread = thread([this]{
1639 //SDL_GL_MakeCurrent(window, context);
1640 QOpenGLContext *context = create_context(this->surface);
1641 eglBindAPI(EGL_OPENGL_API);
1642 if (!make_current(context, this->surface)) {
1643 printf("display=%p surface=%p context=%p curr=%p err=%d\n", eglGetCurrentDisplay(), this->surface, context, eglGetCurrentContext(),
1647 encode_thread_func();
1651 H264EncoderImpl::~H264EncoderImpl()
1654 unique_lock<mutex> lock(frame_queue_mutex);
1655 encode_thread_should_quit = true;
1656 frame_queue_nonempty.notify_all();
1658 encode_thread.join();
1660 unique_lock<mutex> lock(storage_task_queue_mutex);
1661 storage_thread_should_quit = true;
1662 frame_queue_nonempty.notify_all();
1663 storage_task_queue_changed.notify_all();
1665 storage_thread.join();
1671 bool H264EncoderImpl::begin_frame(GLuint *y_tex, GLuint *cbcr_tex)
1674 // Wait until this frame slot is done encoding.
1675 unique_lock<mutex> lock(storage_task_queue_mutex);
1676 storage_task_queue_changed.wait(lock, [this]{ return storage_thread_should_quit || (srcsurface_status[current_storage_frame % SURFACE_NUM] == SRC_SURFACE_FREE); });
1677 if (storage_thread_should_quit) return false;
1680 //*fbo = fbos[current_storage_frame % SURFACE_NUM];
1681 GLSurface *surf = &gl_surfaces[current_storage_frame % SURFACE_NUM];
1682 *y_tex = surf->y_tex;
1683 *cbcr_tex = surf->cbcr_tex;
1685 VASurfaceID surface = surf->src_surface;
1686 VAStatus va_status = vaDeriveImage(va_dpy, surface, &surf->surface_image);
1687 CHECK_VASTATUS(va_status, "vaDeriveImage");
1689 VABufferInfo buf_info;
1690 buf_info.mem_type = VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME; // or VA_SURFACE_ATTRIB_MEM_TYPE_KERNEL_DRM?
1691 va_status = vaAcquireBufferHandle(va_dpy, surf->surface_image.buf, &buf_info);
1692 CHECK_VASTATUS(va_status, "vaAcquireBufferHandle");
1695 surf->y_egl_image = EGL_NO_IMAGE_KHR;
1696 EGLint y_attribs[] = {
1697 EGL_WIDTH, frame_width,
1698 EGL_HEIGHT, frame_height,
1699 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('R', '8', ' ', ' '),
1700 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
1701 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[0]),
1702 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[0]),
1706 surf->y_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, y_attribs);
1707 assert(surf->y_egl_image != EGL_NO_IMAGE_KHR);
1709 // Associate Y image to a texture.
1710 glBindTexture(GL_TEXTURE_2D, *y_tex);
1711 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->y_egl_image);
1713 // Create CbCr image.
1714 surf->cbcr_egl_image = EGL_NO_IMAGE_KHR;
1715 EGLint cbcr_attribs[] = {
1716 EGL_WIDTH, frame_width,
1717 EGL_HEIGHT, frame_height,
1718 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('G', 'R', '8', '8'),
1719 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
1720 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[1]),
1721 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[1]),
1725 surf->cbcr_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, cbcr_attribs);
1726 assert(surf->cbcr_egl_image != EGL_NO_IMAGE_KHR);
1728 // Associate CbCr image to a texture.
1729 glBindTexture(GL_TEXTURE_2D, *cbcr_tex);
1730 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->cbcr_egl_image);
1735 void H264EncoderImpl::add_audio(int64_t pts, vector<float> audio)
1738 unique_lock<mutex> lock(frame_queue_mutex);
1739 pending_audio_frames[pts] = move(audio);
1741 frame_queue_nonempty.notify_all();
1744 void H264EncoderImpl::end_frame(RefCountedGLsync fence, int64_t pts, const vector<RefCountedFrame> &input_frames)
1747 unique_lock<mutex> lock(frame_queue_mutex);
1748 pending_video_frames[current_storage_frame] = PendingFrame{ fence, input_frames, pts };
1749 ++current_storage_frame;
1751 frame_queue_nonempty.notify_all();
1754 void H264EncoderImpl::encode_thread_func()
1756 int64_t last_dts = -1;
1757 int gop_start_display_frame_num = 0;
1758 for (int encoding_frame_num = 0; ; ++encoding_frame_num) {
1761 int frame_type, display_frame_num;
1762 encoding2display_order(encoding_frame_num, intra_period, intra_idr_period, ip_period,
1763 &display_frame_num, &frame_type, &pts_lag);
1764 if (frame_type == FRAME_IDR) {
1766 current_frame_num = 0;
1767 gop_start_display_frame_num = display_frame_num;
1771 unique_lock<mutex> lock(frame_queue_mutex);
1772 frame_queue_nonempty.wait(lock, [this, display_frame_num]{
1773 return encode_thread_should_quit || pending_video_frames.count(display_frame_num) != 0;
1775 if (encode_thread_should_quit && pending_video_frames.count(display_frame_num) == 0) {
1776 // We have queued frames that were supposed to be B-frames,
1777 // but will be no P-frame to encode them against. Encode them all
1778 // as P-frames instead. Note that this happens under the mutex,
1779 // but nobody else uses it at this point, since we're shutting down,
1780 // so there's no contention.
1781 encode_remaining_frames_as_p(encoding_frame_num, gop_start_display_frame_num, last_dts);
1784 frame = move(pending_video_frames[display_frame_num]);
1785 pending_video_frames.erase(display_frame_num);
1789 // Determine the dts of this frame.
1791 if (pts_lag == -1) {
1792 assert(last_dts != -1);
1793 dts = last_dts + (TIMEBASE / MAX_FPS);
1795 dts = frame.pts - pts_lag;
1799 encode_frame(frame, encoding_frame_num, display_frame_num, gop_start_display_frame_num, frame_type, frame.pts, dts);
1803 void H264EncoderImpl::encode_remaining_frames_as_p(int encoding_frame_num, int gop_start_display_frame_num, int64_t last_dts)
1805 if (pending_video_frames.empty()) {
1809 for (auto &pending_frame : pending_video_frames) {
1810 int display_frame_num = pending_frame.first;
1811 assert(display_frame_num > 0);
1812 PendingFrame frame = move(pending_frame.second);
1813 int64_t dts = last_dts + (TIMEBASE / MAX_FPS);
1814 printf("Finalizing encode: Encoding leftover frame %d as P-frame instead of B-frame.\n", display_frame_num);
1815 encode_frame(frame, encoding_frame_num++, display_frame_num, gop_start_display_frame_num, FRAME_P, frame.pts, dts);
1820 void H264EncoderImpl::encode_frame(H264EncoderImpl::PendingFrame frame, int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num,
1821 int frame_type, int64_t pts, int64_t dts)
1823 // Wait for the GPU to be done with the frame.
1824 glClientWaitSync(frame.fence.get(), 0, 0);
1826 // Release back any input frames we needed to render this frame.
1827 frame.input_frames.clear();
1830 GLSurface *surf = &gl_surfaces[display_frame_num % SURFACE_NUM];
1831 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->y_egl_image);
1832 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->cbcr_egl_image);
1833 VAStatus va_status = vaReleaseBufferHandle(va_dpy, surf->surface_image.buf);
1834 CHECK_VASTATUS(va_status, "vaReleaseBufferHandle");
1835 va_status = vaDestroyImage(va_dpy, surf->surface_image.image_id);
1836 CHECK_VASTATUS(va_status, "vaDestroyImage");
1838 VASurfaceID surface = surf->src_surface;
1840 // Schedule the frame for encoding.
1841 va_status = vaBeginPicture(va_dpy, context_id, surface);
1842 CHECK_VASTATUS(va_status, "vaBeginPicture");
1844 if (frame_type == FRAME_IDR) {
1846 render_picture(frame_type, display_frame_num, gop_start_display_frame_num);
1847 if (h264_packedheader) {
1848 render_packedsequence();
1849 render_packedpicture();
1852 //render_sequence();
1853 render_picture(frame_type, display_frame_num, gop_start_display_frame_num);
1855 render_slice(encoding_frame_num, display_frame_num, gop_start_display_frame_num, frame_type);
1857 va_status = vaEndPicture(va_dpy, context_id);
1858 CHECK_VASTATUS(va_status, "vaEndPicture");
1860 // so now the data is done encoding (well, async job kicked off)...
1861 // we send that to the storage thread
1863 tmp.display_order = display_frame_num;
1864 tmp.frame_type = frame_type;
1867 storage_task_enqueue(move(tmp));
1869 update_ReferenceFrames(frame_type);
1873 H264Encoder::H264Encoder(QSurface *surface, int width, int height, HTTPD *httpd)
1874 : impl(new H264EncoderImpl(surface, width, height, httpd)) {}
1876 // Must be defined here because unique_ptr<> destructor needs to know the impl.
1877 H264Encoder::~H264Encoder() {}
1879 void H264Encoder::add_audio(int64_t pts, std::vector<float> audio)
1881 impl->add_audio(pts, audio);
1884 bool H264Encoder::begin_frame(GLuint *y_tex, GLuint *cbcr_tex)
1886 return impl->begin_frame(y_tex, cbcr_tex);
1889 void H264Encoder::end_frame(RefCountedGLsync fence, int64_t pts, const std::vector<RefCountedFrame> &input_frames)
1891 impl->end_frame(fence, pts, input_frames);