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>
25 #include <condition_variable>
45 #define CHECK_VASTATUS(va_status, func) \
46 if (va_status != VA_STATUS_SUCCESS) { \
47 fprintf(stderr, "%s:%d (%s) failed with %d\n", __func__, __LINE__, func, va_status); \
51 //#include "loadsurface.h"
53 #define NAL_REF_IDC_NONE 0
54 #define NAL_REF_IDC_LOW 1
55 #define NAL_REF_IDC_MEDIUM 2
56 #define NAL_REF_IDC_HIGH 3
64 #define SLICE_TYPE_P 0
65 #define SLICE_TYPE_B 1
66 #define SLICE_TYPE_I 2
67 #define IS_P_SLICE(type) (SLICE_TYPE_P == (type))
68 #define IS_B_SLICE(type) (SLICE_TYPE_B == (type))
69 #define IS_I_SLICE(type) (SLICE_TYPE_I == (type))
72 #define ENTROPY_MODE_CAVLC 0
73 #define ENTROPY_MODE_CABAC 1
75 #define PROFILE_IDC_BASELINE 66
76 #define PROFILE_IDC_MAIN 77
77 #define PROFILE_IDC_HIGH 100
79 #define BITSTREAM_ALLOCATE_STEPPING 4096
81 #define SURFACE_NUM 16 /* 16 surfaces for source YUV */
82 static VADisplay va_dpy;
83 static VAProfile h264_profile = (VAProfile)~0;
84 static VAConfigAttrib config_attrib[VAConfigAttribTypeMax];
85 static int config_attrib_num = 0, enc_packed_header_idx;
88 VASurfaceID src_surface, ref_surface;
91 VAImage surface_image;
92 GLuint y_tex, cbcr_tex;
93 EGLImage y_egl_image, cbcr_egl_image;
95 GLSurface gl_surfaces[SURFACE_NUM];
97 static VAConfigID config_id;
98 static VAContextID context_id;
99 static VAEncSequenceParameterBufferH264 seq_param;
100 static VAEncPictureParameterBufferH264 pic_param;
101 static VAEncSliceParameterBufferH264 slice_param;
102 static VAPictureH264 CurrentCurrPic;
103 static VAPictureH264 ReferenceFrames[16], RefPicList0_P[32], RefPicList0_B[32], RefPicList1_B[32];
105 static unsigned int MaxFrameNum = (2<<16);
106 static unsigned int MaxPicOrderCntLsb = (2<<8);
107 static unsigned int Log2MaxFrameNum = 16;
108 static unsigned int Log2MaxPicOrderCntLsb = 8;
110 static unsigned int num_ref_frames = 2;
111 static unsigned int numShortTerm = 0;
112 static int constraint_set_flag = 0;
113 static int h264_packedheader = 0; /* support pack header? */
114 static int h264_maxref = (1<<16|1);
115 static int h264_entropy_mode = 1; /* cabac */
117 static int frame_width = 176;
118 static int frame_height = 144;
119 static int frame_width_mbaligned;
120 static int frame_height_mbaligned;
121 static unsigned int frame_bitrate = 0;
122 static double frame_size = 0;
123 static int initial_qp = 15;
124 //static int initial_qp = 28;
125 static int minimal_qp = 0;
126 static int intra_period = 30;
127 static int intra_idr_period = MAX_FPS; // About a second; more at lower frame rates. Not ideal.
128 static int ip_period = 3;
129 static int rc_mode = -1;
130 static int rc_default_modes[] = {
133 VA_RC_VBR_CONSTRAINED,
138 static unsigned int current_frame_num = 0;
140 static int misc_priv_type = 0;
141 static int misc_priv_value = 0;
143 /* thread to save coded data */
144 #define SRC_SURFACE_FREE 0
145 #define SRC_SURFACE_IN_ENCODING 1
148 unsigned int *buffer;
150 int max_size_in_dword;
152 typedef struct __bitstream bitstream;
156 class H264EncoderImpl {
158 H264EncoderImpl(QSurface *surface, int width, int height, HTTPD *httpd);
160 void add_audio(int64_t pts, std::vector<float> audio); // Needs to come before end_frame() of same pts.
161 bool begin_frame(GLuint *y_tex, GLuint *cbcr_tex);
162 void end_frame(RefCountedGLsync fence, int64_t pts, const std::vector<RefCountedFrame> &input_frames);
165 struct storage_task {
166 unsigned long long display_order;
168 std::vector<float> audio;
171 struct PendingFrame {
172 RefCountedGLsync fence;
173 std::vector<RefCountedFrame> input_frames;
177 void encode_thread_func();
178 void encode_remaining_frames_as_p(int encoding_frame_num, int gop_start_display_frame_num, int64_t last_dts);
179 void encode_frame(PendingFrame frame, int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num,
180 int frame_type, int64_t pts, int64_t dts);
181 void storage_task_thread();
182 void storage_task_enqueue(storage_task task);
183 void save_codeddata(storage_task task);
185 std::thread encode_thread, storage_thread;
187 std::mutex storage_task_queue_mutex;
188 std::condition_variable storage_task_queue_changed;
189 int srcsurface_status[SURFACE_NUM]; // protected by storage_task_queue_mutex
190 std::queue<storage_task> storage_task_queue; // protected by storage_task_queue_mutex
191 bool storage_thread_should_quit = false; // protected by storage_task_queue_mutex
193 std::mutex frame_queue_mutex;
194 std::condition_variable frame_queue_nonempty;
195 bool encode_thread_should_quit = false; // under frame_queue_mutex
197 //int frame_width, frame_height;
199 int current_storage_frame;
201 std::map<int, PendingFrame> pending_video_frames; // under frame_queue_mutex
202 std::map<int64_t, std::vector<float>> pending_audio_frames; // under frame_queue_mutex
205 AVCodecContext *context_audio;
210 // Supposedly vaRenderPicture() is supposed to destroy the buffer implicitly,
211 // but if we don't delete it here, we get leaks. The GStreamer implementation
213 static void render_picture_and_delete(VADisplay dpy, VAContextID context, VABufferID *buffers, int num_buffers)
215 VAStatus va_status = vaRenderPicture(dpy, context, buffers, num_buffers);
216 CHECK_VASTATUS(va_status, "vaRenderPicture");
218 for (int i = 0; i < num_buffers; ++i) {
219 va_status = vaDestroyBuffer(va_dpy, buffers[i]);
220 CHECK_VASTATUS(va_status, "vaDestroyBuffer");
225 va_swap32(unsigned int val)
227 unsigned char *pval = (unsigned char *)&val;
229 return ((pval[0] << 24) |
236 bitstream_start(bitstream *bs)
238 bs->max_size_in_dword = BITSTREAM_ALLOCATE_STEPPING;
239 bs->buffer = (unsigned int *)calloc(bs->max_size_in_dword * sizeof(int), 1);
244 bitstream_end(bitstream *bs)
246 int pos = (bs->bit_offset >> 5);
247 int bit_offset = (bs->bit_offset & 0x1f);
248 int bit_left = 32 - bit_offset;
251 bs->buffer[pos] = va_swap32((bs->buffer[pos] << bit_left));
256 bitstream_put_ui(bitstream *bs, unsigned int val, int size_in_bits)
258 int pos = (bs->bit_offset >> 5);
259 int bit_offset = (bs->bit_offset & 0x1f);
260 int bit_left = 32 - bit_offset;
265 bs->bit_offset += size_in_bits;
267 if (bit_left > size_in_bits) {
268 bs->buffer[pos] = (bs->buffer[pos] << size_in_bits | val);
270 size_in_bits -= bit_left;
271 bs->buffer[pos] = (bs->buffer[pos] << bit_left) | (val >> size_in_bits);
272 bs->buffer[pos] = va_swap32(bs->buffer[pos]);
274 if (pos + 1 == bs->max_size_in_dword) {
275 bs->max_size_in_dword += BITSTREAM_ALLOCATE_STEPPING;
276 bs->buffer = (unsigned int *)realloc(bs->buffer, bs->max_size_in_dword * sizeof(unsigned int));
279 bs->buffer[pos + 1] = val;
284 bitstream_put_ue(bitstream *bs, unsigned int val)
286 int size_in_bits = 0;
294 bitstream_put_ui(bs, 0, size_in_bits - 1); // leading zero
295 bitstream_put_ui(bs, val, size_in_bits);
299 bitstream_put_se(bitstream *bs, int val)
301 unsigned int new_val;
306 new_val = 2 * val - 1;
308 bitstream_put_ue(bs, new_val);
312 bitstream_byte_aligning(bitstream *bs, int bit)
314 int bit_offset = (bs->bit_offset & 0x7);
315 int bit_left = 8 - bit_offset;
321 assert(bit == 0 || bit == 1);
324 new_val = (1 << bit_left) - 1;
328 bitstream_put_ui(bs, new_val, bit_left);
332 rbsp_trailing_bits(bitstream *bs)
334 bitstream_put_ui(bs, 1, 1);
335 bitstream_byte_aligning(bs, 0);
338 static void nal_start_code_prefix(bitstream *bs)
340 bitstream_put_ui(bs, 0x00000001, 32);
343 static void nal_header(bitstream *bs, int nal_ref_idc, int nal_unit_type)
345 bitstream_put_ui(bs, 0, 1); /* forbidden_zero_bit: 0 */
346 bitstream_put_ui(bs, nal_ref_idc, 2);
347 bitstream_put_ui(bs, nal_unit_type, 5);
350 static void sps_rbsp(bitstream *bs)
352 int profile_idc = PROFILE_IDC_BASELINE;
354 if (h264_profile == VAProfileH264High)
355 profile_idc = PROFILE_IDC_HIGH;
356 else if (h264_profile == VAProfileH264Main)
357 profile_idc = PROFILE_IDC_MAIN;
359 bitstream_put_ui(bs, profile_idc, 8); /* profile_idc */
360 bitstream_put_ui(bs, !!(constraint_set_flag & 1), 1); /* constraint_set0_flag */
361 bitstream_put_ui(bs, !!(constraint_set_flag & 2), 1); /* constraint_set1_flag */
362 bitstream_put_ui(bs, !!(constraint_set_flag & 4), 1); /* constraint_set2_flag */
363 bitstream_put_ui(bs, !!(constraint_set_flag & 8), 1); /* constraint_set3_flag */
364 bitstream_put_ui(bs, 0, 4); /* reserved_zero_4bits */
365 bitstream_put_ui(bs, seq_param.level_idc, 8); /* level_idc */
366 bitstream_put_ue(bs, seq_param.seq_parameter_set_id); /* seq_parameter_set_id */
368 if ( profile_idc == PROFILE_IDC_HIGH) {
369 bitstream_put_ue(bs, 1); /* chroma_format_idc = 1, 4:2:0 */
370 bitstream_put_ue(bs, 0); /* bit_depth_luma_minus8 */
371 bitstream_put_ue(bs, 0); /* bit_depth_chroma_minus8 */
372 bitstream_put_ui(bs, 0, 1); /* qpprime_y_zero_transform_bypass_flag */
373 bitstream_put_ui(bs, 0, 1); /* seq_scaling_matrix_present_flag */
376 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_frame_num_minus4); /* log2_max_frame_num_minus4 */
377 bitstream_put_ue(bs, seq_param.seq_fields.bits.pic_order_cnt_type); /* pic_order_cnt_type */
379 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0)
380 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4); /* log2_max_pic_order_cnt_lsb_minus4 */
385 bitstream_put_ue(bs, seq_param.max_num_ref_frames); /* num_ref_frames */
386 bitstream_put_ui(bs, 0, 1); /* gaps_in_frame_num_value_allowed_flag */
388 bitstream_put_ue(bs, seq_param.picture_width_in_mbs - 1); /* pic_width_in_mbs_minus1 */
389 bitstream_put_ue(bs, seq_param.picture_height_in_mbs - 1); /* pic_height_in_map_units_minus1 */
390 bitstream_put_ui(bs, seq_param.seq_fields.bits.frame_mbs_only_flag, 1); /* frame_mbs_only_flag */
392 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
396 bitstream_put_ui(bs, seq_param.seq_fields.bits.direct_8x8_inference_flag, 1); /* direct_8x8_inference_flag */
397 bitstream_put_ui(bs, seq_param.frame_cropping_flag, 1); /* frame_cropping_flag */
399 if (seq_param.frame_cropping_flag) {
400 bitstream_put_ue(bs, seq_param.frame_crop_left_offset); /* frame_crop_left_offset */
401 bitstream_put_ue(bs, seq_param.frame_crop_right_offset); /* frame_crop_right_offset */
402 bitstream_put_ue(bs, seq_param.frame_crop_top_offset); /* frame_crop_top_offset */
403 bitstream_put_ue(bs, seq_param.frame_crop_bottom_offset); /* frame_crop_bottom_offset */
406 //if ( frame_bit_rate < 0 ) { //TODO EW: the vui header isn't correct
408 bitstream_put_ui(bs, 0, 1); /* vui_parameters_present_flag */
410 bitstream_put_ui(bs, 1, 1); /* vui_parameters_present_flag */
411 bitstream_put_ui(bs, 0, 1); /* aspect_ratio_info_present_flag */
412 bitstream_put_ui(bs, 0, 1); /* overscan_info_present_flag */
413 bitstream_put_ui(bs, 1, 1); /* video_signal_type_present_flag */
415 bitstream_put_ui(bs, 5, 3); /* video_format (5 = Unspecified) */
416 bitstream_put_ui(bs, 0, 1); /* video_full_range_flag */
417 bitstream_put_ui(bs, 1, 1); /* colour_description_present_flag */
419 bitstream_put_ui(bs, 1, 8); /* colour_primaries (1 = BT.709) */
420 bitstream_put_ui(bs, 2, 8); /* transfer_characteristics (2 = unspecified, since we use sRGB) */
421 bitstream_put_ui(bs, 6, 8); /* matrix_coefficients (6 = BT.601/SMPTE 170M) */
424 bitstream_put_ui(bs, 0, 1); /* chroma_loc_info_present_flag */
425 bitstream_put_ui(bs, 1, 1); /* timing_info_present_flag */
427 bitstream_put_ui(bs, 1, 32); // FPS
428 bitstream_put_ui(bs, TIMEBASE * 2, 32); // FPS
429 bitstream_put_ui(bs, 1, 1);
431 bitstream_put_ui(bs, 1, 1); /* nal_hrd_parameters_present_flag */
434 bitstream_put_ue(bs, 0); /* cpb_cnt_minus1 */
435 bitstream_put_ui(bs, 4, 4); /* bit_rate_scale */
436 bitstream_put_ui(bs, 6, 4); /* cpb_size_scale */
438 bitstream_put_ue(bs, frame_bitrate - 1); /* bit_rate_value_minus1[0] */
439 bitstream_put_ue(bs, frame_bitrate*8 - 1); /* cpb_size_value_minus1[0] */
440 bitstream_put_ui(bs, 1, 1); /* cbr_flag[0] */
442 bitstream_put_ui(bs, 23, 5); /* initial_cpb_removal_delay_length_minus1 */
443 bitstream_put_ui(bs, 23, 5); /* cpb_removal_delay_length_minus1 */
444 bitstream_put_ui(bs, 23, 5); /* dpb_output_delay_length_minus1 */
445 bitstream_put_ui(bs, 23, 5); /* time_offset_length */
447 bitstream_put_ui(bs, 0, 1); /* vcl_hrd_parameters_present_flag */
448 bitstream_put_ui(bs, 0, 1); /* low_delay_hrd_flag */
450 bitstream_put_ui(bs, 0, 1); /* pic_struct_present_flag */
451 bitstream_put_ui(bs, 0, 1); /* bitstream_restriction_flag */
454 rbsp_trailing_bits(bs); /* rbsp_trailing_bits */
458 static void pps_rbsp(bitstream *bs)
460 bitstream_put_ue(bs, pic_param.pic_parameter_set_id); /* pic_parameter_set_id */
461 bitstream_put_ue(bs, pic_param.seq_parameter_set_id); /* seq_parameter_set_id */
463 bitstream_put_ui(bs, pic_param.pic_fields.bits.entropy_coding_mode_flag, 1); /* entropy_coding_mode_flag */
465 bitstream_put_ui(bs, 0, 1); /* pic_order_present_flag: 0 */
467 bitstream_put_ue(bs, 0); /* num_slice_groups_minus1 */
469 bitstream_put_ue(bs, pic_param.num_ref_idx_l0_active_minus1); /* num_ref_idx_l0_active_minus1 */
470 bitstream_put_ue(bs, pic_param.num_ref_idx_l1_active_minus1); /* num_ref_idx_l1_active_minus1 1 */
472 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_pred_flag, 1); /* weighted_pred_flag: 0 */
473 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_bipred_idc, 2); /* weighted_bipred_idc: 0 */
475 bitstream_put_se(bs, pic_param.pic_init_qp - 26); /* pic_init_qp_minus26 */
476 bitstream_put_se(bs, 0); /* pic_init_qs_minus26 */
477 bitstream_put_se(bs, 0); /* chroma_qp_index_offset */
479 bitstream_put_ui(bs, pic_param.pic_fields.bits.deblocking_filter_control_present_flag, 1); /* deblocking_filter_control_present_flag */
480 bitstream_put_ui(bs, 0, 1); /* constrained_intra_pred_flag */
481 bitstream_put_ui(bs, 0, 1); /* redundant_pic_cnt_present_flag */
484 bitstream_put_ui(bs, pic_param.pic_fields.bits.transform_8x8_mode_flag, 1); /*transform_8x8_mode_flag */
485 bitstream_put_ui(bs, 0, 1); /* pic_scaling_matrix_present_flag */
486 bitstream_put_se(bs, pic_param.second_chroma_qp_index_offset ); /*second_chroma_qp_index_offset */
488 rbsp_trailing_bits(bs);
491 static void slice_header(bitstream *bs)
493 int first_mb_in_slice = slice_param.macroblock_address;
495 bitstream_put_ue(bs, first_mb_in_slice); /* first_mb_in_slice: 0 */
496 bitstream_put_ue(bs, slice_param.slice_type); /* slice_type */
497 bitstream_put_ue(bs, slice_param.pic_parameter_set_id); /* pic_parameter_set_id: 0 */
498 bitstream_put_ui(bs, pic_param.frame_num, seq_param.seq_fields.bits.log2_max_frame_num_minus4 + 4); /* frame_num */
500 /* frame_mbs_only_flag == 1 */
501 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
506 if (pic_param.pic_fields.bits.idr_pic_flag)
507 bitstream_put_ue(bs, slice_param.idr_pic_id); /* idr_pic_id: 0 */
509 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0) {
510 bitstream_put_ui(bs, pic_param.CurrPic.TopFieldOrderCnt, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 + 4);
511 /* pic_order_present_flag == 0 */
517 /* redundant_pic_cnt_present_flag == 0 */
519 if (IS_P_SLICE(slice_param.slice_type)) {
520 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
522 if (slice_param.num_ref_idx_active_override_flag)
523 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
525 /* ref_pic_list_reordering */
526 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
527 } else if (IS_B_SLICE(slice_param.slice_type)) {
528 bitstream_put_ui(bs, slice_param.direct_spatial_mv_pred_flag, 1); /* direct_spatial_mv_pred: 1 */
530 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
532 if (slice_param.num_ref_idx_active_override_flag) {
533 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
534 bitstream_put_ue(bs, slice_param.num_ref_idx_l1_active_minus1);
537 /* ref_pic_list_reordering */
538 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
539 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l1: 0 */
542 if ((pic_param.pic_fields.bits.weighted_pred_flag &&
543 IS_P_SLICE(slice_param.slice_type)) ||
544 ((pic_param.pic_fields.bits.weighted_bipred_idc == 1) &&
545 IS_B_SLICE(slice_param.slice_type))) {
546 /* FIXME: fill weight/offset table */
550 /* dec_ref_pic_marking */
551 if (pic_param.pic_fields.bits.reference_pic_flag) { /* nal_ref_idc != 0 */
552 unsigned char no_output_of_prior_pics_flag = 0;
553 unsigned char long_term_reference_flag = 0;
554 unsigned char adaptive_ref_pic_marking_mode_flag = 0;
556 if (pic_param.pic_fields.bits.idr_pic_flag) {
557 bitstream_put_ui(bs, no_output_of_prior_pics_flag, 1); /* no_output_of_prior_pics_flag: 0 */
558 bitstream_put_ui(bs, long_term_reference_flag, 1); /* long_term_reference_flag: 0 */
560 bitstream_put_ui(bs, adaptive_ref_pic_marking_mode_flag, 1); /* adaptive_ref_pic_marking_mode_flag: 0 */
564 if (pic_param.pic_fields.bits.entropy_coding_mode_flag &&
565 !IS_I_SLICE(slice_param.slice_type))
566 bitstream_put_ue(bs, slice_param.cabac_init_idc); /* cabac_init_idc: 0 */
568 bitstream_put_se(bs, slice_param.slice_qp_delta); /* slice_qp_delta: 0 */
570 /* ignore for SP/SI */
572 if (pic_param.pic_fields.bits.deblocking_filter_control_present_flag) {
573 bitstream_put_ue(bs, slice_param.disable_deblocking_filter_idc); /* disable_deblocking_filter_idc: 0 */
575 if (slice_param.disable_deblocking_filter_idc != 1) {
576 bitstream_put_se(bs, slice_param.slice_alpha_c0_offset_div2); /* slice_alpha_c0_offset_div2: 2 */
577 bitstream_put_se(bs, slice_param.slice_beta_offset_div2); /* slice_beta_offset_div2: 2 */
581 if (pic_param.pic_fields.bits.entropy_coding_mode_flag) {
582 bitstream_byte_aligning(bs, 1);
587 build_packed_pic_buffer(unsigned char **header_buffer)
591 bitstream_start(&bs);
592 nal_start_code_prefix(&bs);
593 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_PPS);
597 *header_buffer = (unsigned char *)bs.buffer;
598 return bs.bit_offset;
602 build_packed_seq_buffer(unsigned char **header_buffer)
606 bitstream_start(&bs);
607 nal_start_code_prefix(&bs);
608 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_SPS);
612 *header_buffer = (unsigned char *)bs.buffer;
613 return bs.bit_offset;
616 static int build_packed_slice_buffer(unsigned char **header_buffer)
619 int is_idr = !!pic_param.pic_fields.bits.idr_pic_flag;
620 int is_ref = !!pic_param.pic_fields.bits.reference_pic_flag;
622 bitstream_start(&bs);
623 nal_start_code_prefix(&bs);
625 if (IS_I_SLICE(slice_param.slice_type)) {
626 nal_header(&bs, NAL_REF_IDC_HIGH, is_idr ? NAL_IDR : NAL_NON_IDR);
627 } else if (IS_P_SLICE(slice_param.slice_type)) {
628 nal_header(&bs, NAL_REF_IDC_MEDIUM, NAL_NON_IDR);
630 assert(IS_B_SLICE(slice_param.slice_type));
631 nal_header(&bs, is_ref ? NAL_REF_IDC_LOW : NAL_REF_IDC_NONE, NAL_NON_IDR);
637 *header_buffer = (unsigned char *)bs.buffer;
638 return bs.bit_offset;
643 Assume frame sequence is: Frame#0, #1, #2, ..., #M, ..., #X, ... (encoding order)
644 1) period between Frame #X and Frame #N = #X - #N
645 2) 0 means infinite for intra_period/intra_idr_period, and 0 is invalid for ip_period
646 3) intra_idr_period % intra_period (intra_period > 0) and intra_period % ip_period must be 0
647 4) intra_period and intra_idr_period take precedence over ip_period
648 5) if ip_period > 1, intra_period and intra_idr_period are not the strict periods
649 of I/IDR frames, see bellow examples
650 -------------------------------------------------------------------
651 intra_period intra_idr_period ip_period frame sequence (intra_period/intra_idr_period/ip_period)
652 0 ignored 1 IDRPPPPPPP ... (No IDR/I any more)
653 0 ignored >=2 IDR(PBB)(PBB)... (No IDR/I any more)
654 1 0 ignored IDRIIIIIII... (No IDR any more)
655 1 1 ignored IDR IDR IDR IDR...
656 1 >=2 ignored IDRII IDRII IDR... (1/3/ignore)
657 >=2 0 1 IDRPPP IPPP I... (3/0/1)
658 >=2 0 >=2 IDR(PBB)(PBB)(IBB) (6/0/3)
659 (PBB)(IBB)(PBB)(IBB)...
660 >=2 >=2 1 IDRPPPPP IPPPPP IPPPPP (6/18/1)
661 IDRPPPPP IPPPPP IPPPPP...
662 >=2 >=2 >=2 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)} (6/18/3)
663 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)}...
664 {IDR(PBB)(PBB)(IBB)(PBB)} (6/12/3)
665 {IDR(PBB)(PBB)(IBB)(PBB)}...
666 {IDR(PBB)(PBB)} (6/6/3)
670 // General pts/dts strategy:
672 // Getting pts and dts right with variable frame rate (VFR) and B-frames can be a
673 // bit tricky. We assume first of all that the frame rate never goes _above_
674 // MAX_FPS, which gives us a frame period N. The decoder can always decode
675 // in at least this speed, as long at dts <= pts (the frame is not attempted
676 // presented before it is decoded). Furthermore, we never have longer chains of
677 // B-frames than a fixed constant C. (In a B-frame chain, we say that the base
678 // I/P-frame has order O=0, the B-frame depending on it directly has order O=1,
679 // etc. The last frame in the chain, which no B-frames depend on, is the “tip”
680 // frame, with an order O <= C.)
682 // Many strategies are possible, but we establish these rules:
684 // - Tip frames have dts = pts - (C-O)*N.
685 // - Non-tip frames have dts = dts_last + N.
687 // An example, with C=2 and N=10 and the data flow showed with arrows:
690 // pts: 30 40 50 60 70 80
692 // dts: 10 30 20 60 50←40
697 // To show that this works fine also with irregular spacings, let's say that
698 // the third frame is delayed a bit (something earlier was dropped). Now the
699 // situation looks like this:
702 // pts: 30 40 80 90 100 110
704 // dts: 10 30 20 90 50←40
709 // The resetting on every tip frame makes sure dts never ends up lagging a lot
710 // behind pts, and the subtraction of (C-O)*N makes sure pts <= dts.
712 // In the output of this function, if <dts_lag> is >= 0, it means to reset the
713 // dts from the current pts minus <dts_lag>, while if it's -1, the frame is not
714 // a tip frame and should be given a dts based on the previous one.
719 void encoding2display_order(
720 int encoding_order, int intra_period,
721 int intra_idr_period, int ip_period,
722 int *displaying_order,
723 int *frame_type, int *pts_lag)
725 int encoding_order_gop = 0;
729 if (intra_period == 1) { /* all are I/IDR frames */
730 *displaying_order = encoding_order;
731 if (intra_idr_period == 0)
732 *frame_type = (encoding_order == 0)?FRAME_IDR:FRAME_I;
734 *frame_type = (encoding_order % intra_idr_period == 0)?FRAME_IDR:FRAME_I;
738 if (intra_period == 0)
739 intra_idr_period = 0;
741 if (ip_period == 1) {
742 // No B-frames, sequence is like IDR PPPPP IPPPPP.
743 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % intra_idr_period);
744 *displaying_order = encoding_order;
746 if (encoding_order_gop == 0) { /* the first frame */
747 *frame_type = FRAME_IDR;
748 } else if (intra_period != 0 && /* have I frames */
749 encoding_order_gop >= 2 &&
750 (encoding_order_gop % intra_period == 0)) {
751 *frame_type = FRAME_I;
753 *frame_type = FRAME_P;
758 // We have B-frames. Sequence is like IDR (PBB)(PBB)(IBB)(PBB).
759 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % (intra_idr_period + 1));
760 *pts_lag = -1; // Most frames are not tip frames.
762 if (encoding_order_gop == 0) { /* the first frame */
763 *frame_type = FRAME_IDR;
764 *displaying_order = encoding_order;
765 // IDR frames are a special case; I honestly can't find the logic behind
766 // why this is the right thing, but it seems to line up nicely in practice :-)
767 *pts_lag = TIMEBASE / MAX_FPS;
768 } else if (((encoding_order_gop - 1) % ip_period) != 0) { /* B frames */
769 *frame_type = FRAME_B;
770 *displaying_order = encoding_order - 1;
771 if ((encoding_order_gop % ip_period) == 0) {
772 *pts_lag = 0; // Last B-frame.
774 } else if (intra_period != 0 && /* have I frames */
775 encoding_order_gop >= 2 &&
776 ((encoding_order_gop - 1) / ip_period % (intra_period / ip_period)) == 0) {
777 *frame_type = FRAME_I;
778 *displaying_order = encoding_order + ip_period - 1;
780 *frame_type = FRAME_P;
781 *displaying_order = encoding_order + ip_period - 1;
786 static const char *rc_to_string(int rcmode)
799 case VA_RC_VBR_CONSTRAINED:
800 return "VBR_CONSTRAINED";
807 static int process_cmdline(int argc, char *argv[])
810 const struct option long_opts[] = {
811 {"help", no_argument, NULL, 0 },
812 {"bitrate", required_argument, NULL, 1 },
813 {"minqp", required_argument, NULL, 2 },
814 {"initialqp", required_argument, NULL, 3 },
815 {"intra_period", required_argument, NULL, 4 },
816 {"idr_period", required_argument, NULL, 5 },
817 {"ip_period", required_argument, NULL, 6 },
818 {"rcmode", required_argument, NULL, 7 },
819 {"srcyuv", required_argument, NULL, 9 },
820 {"recyuv", required_argument, NULL, 10 },
821 {"fourcc", required_argument, NULL, 11 },
822 {"syncmode", no_argument, NULL, 12 },
823 {"enablePSNR", no_argument, NULL, 13 },
824 {"prit", required_argument, NULL, 14 },
825 {"priv", required_argument, NULL, 15 },
826 {"framecount", required_argument, NULL, 16 },
827 {"entropy", required_argument, NULL, 17 },
828 {"profile", required_argument, NULL, 18 },
829 {NULL, no_argument, NULL, 0 }};
832 while ((c =getopt_long_only(argc, argv, "w:h:n:f:o:?", long_opts, &long_index)) != EOF) {
835 frame_width = atoi(optarg);
838 frame_height = atoi(optarg);
842 frame_rate = atoi(optarg);
845 coded_fn = strdup(optarg);
851 frame_bitrate = atoi(optarg);
854 minimal_qp = atoi(optarg);
857 initial_qp = atoi(optarg);
860 intra_period = atoi(optarg);
863 intra_idr_period = atoi(optarg);
866 ip_period = atoi(optarg);
869 rc_mode = string_to_rc(optarg);
876 srcyuv_fn = strdup(optarg);
879 srcyuv_fourcc = string_to_fourcc(optarg);
880 if (srcyuv_fourcc <= 0) {
889 misc_priv_type = strtol(optarg, NULL, 0);
892 misc_priv_value = strtol(optarg, NULL, 0);
895 h264_entropy_mode = atoi(optarg) ? 1: 0;
898 if (strncmp(optarg, "BP", 2) == 0)
899 h264_profile = VAProfileH264Baseline;
900 else if (strncmp(optarg, "MP", 2) == 0)
901 h264_profile = VAProfileH264Main;
902 else if (strncmp(optarg, "HP", 2) == 0)
903 h264_profile = VAProfileH264High;
905 h264_profile = (VAProfile)0;
915 printf(" ip_period must be greater than 0\n");
918 if (intra_period != 1 && intra_period % ip_period != 0) {
919 printf(" intra_period must be a multiplier of ip_period\n");
922 if (intra_period != 0 && intra_idr_period % intra_period != 0) {
923 printf(" intra_idr_period must be a multiplier of intra_period\n");
927 if (frame_bitrate == 0)
928 frame_bitrate = frame_width * frame_height * 12 * MAX_FPS / 50;
930 if (coded_fn == NULL) {
932 if (stat("/tmp", &buf) == 0)
933 coded_fn = strdup("/tmp/test.264");
934 else if (stat("/sdcard", &buf) == 0)
935 coded_fn = strdup("/sdcard/test.264");
937 coded_fn = strdup("./test.264");
941 frame_width_mbaligned = (frame_width + 15) & (~15);
942 frame_height_mbaligned = (frame_height + 15) & (~15);
943 if (frame_width != frame_width_mbaligned ||
944 frame_height != frame_height_mbaligned) {
945 printf("Source frame is %dx%d and will code clip to %dx%d with crop\n",
946 frame_width, frame_height,
947 frame_width_mbaligned, frame_height_mbaligned
955 static Display *x11_display;
956 static Window x11_window;
959 va_open_display(void)
961 x11_display = XOpenDisplay(NULL);
963 fprintf(stderr, "error: can't connect to X server!\n");
966 return vaGetDisplay(x11_display);
970 va_close_display(VADisplay va_dpy)
976 XUnmapWindow(x11_display, x11_window);
977 XDestroyWindow(x11_display, x11_window);
980 XCloseDisplay(x11_display);
984 static int init_va(void)
986 VAProfile profile_list[]={VAProfileH264High, VAProfileH264Main, VAProfileH264Baseline, VAProfileH264ConstrainedBaseline};
987 VAEntrypoint *entrypoints;
988 int num_entrypoints, slice_entrypoint;
989 int support_encode = 0;
990 int major_ver, minor_ver;
994 va_dpy = va_open_display();
995 va_status = vaInitialize(va_dpy, &major_ver, &minor_ver);
996 CHECK_VASTATUS(va_status, "vaInitialize");
998 num_entrypoints = vaMaxNumEntrypoints(va_dpy);
999 entrypoints = (VAEntrypoint *)malloc(num_entrypoints * sizeof(*entrypoints));
1001 fprintf(stderr, "error: failed to initialize VA entrypoints array\n");
1005 /* use the highest profile */
1006 for (i = 0; i < sizeof(profile_list)/sizeof(profile_list[0]); i++) {
1007 if ((h264_profile != ~0) && h264_profile != profile_list[i])
1010 h264_profile = profile_list[i];
1011 vaQueryConfigEntrypoints(va_dpy, h264_profile, entrypoints, &num_entrypoints);
1012 for (slice_entrypoint = 0; slice_entrypoint < num_entrypoints; slice_entrypoint++) {
1013 if (entrypoints[slice_entrypoint] == VAEntrypointEncSlice) {
1018 if (support_encode == 1)
1022 if (support_encode == 0) {
1023 printf("Can't find VAEntrypointEncSlice for H264 profiles\n");
1026 switch (h264_profile) {
1027 case VAProfileH264Baseline:
1029 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
1030 h264_entropy_mode = 0;
1032 case VAProfileH264ConstrainedBaseline:
1033 constraint_set_flag |= (1 << 0 | 1 << 1); /* Annex A.2.2 */
1037 case VAProfileH264Main:
1038 constraint_set_flag |= (1 << 1); /* Annex A.2.2 */
1041 case VAProfileH264High:
1042 constraint_set_flag |= (1 << 3); /* Annex A.2.4 */
1045 h264_profile = VAProfileH264Baseline;
1047 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
1052 VAConfigAttrib attrib[VAConfigAttribTypeMax];
1054 /* find out the format for the render target, and rate control mode */
1055 for (i = 0; i < VAConfigAttribTypeMax; i++)
1056 attrib[i].type = (VAConfigAttribType)i;
1058 va_status = vaGetConfigAttributes(va_dpy, h264_profile, VAEntrypointEncSlice,
1059 &attrib[0], VAConfigAttribTypeMax);
1060 CHECK_VASTATUS(va_status, "vaGetConfigAttributes");
1061 /* check the interested configattrib */
1062 if ((attrib[VAConfigAttribRTFormat].value & VA_RT_FORMAT_YUV420) == 0) {
1063 printf("Not find desired YUV420 RT format\n");
1066 config_attrib[config_attrib_num].type = VAConfigAttribRTFormat;
1067 config_attrib[config_attrib_num].value = VA_RT_FORMAT_YUV420;
1068 config_attrib_num++;
1071 if (attrib[VAConfigAttribRateControl].value != VA_ATTRIB_NOT_SUPPORTED) {
1072 int tmp = attrib[VAConfigAttribRateControl].value;
1074 if (rc_mode == -1 || !(rc_mode & tmp)) {
1075 if (rc_mode != -1) {
1076 printf("Warning: Don't support the specified RateControl mode: %s!!!, switch to ", rc_to_string(rc_mode));
1079 for (i = 0; i < sizeof(rc_default_modes) / sizeof(rc_default_modes[0]); i++) {
1080 if (rc_default_modes[i] & tmp) {
1081 rc_mode = rc_default_modes[i];
1087 config_attrib[config_attrib_num].type = VAConfigAttribRateControl;
1088 config_attrib[config_attrib_num].value = rc_mode;
1089 config_attrib_num++;
1093 if (attrib[VAConfigAttribEncPackedHeaders].value != VA_ATTRIB_NOT_SUPPORTED) {
1094 int tmp = attrib[VAConfigAttribEncPackedHeaders].value;
1096 h264_packedheader = 1;
1097 config_attrib[config_attrib_num].type = VAConfigAttribEncPackedHeaders;
1098 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
1100 if (tmp & VA_ENC_PACKED_HEADER_SEQUENCE) {
1101 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SEQUENCE;
1104 if (tmp & VA_ENC_PACKED_HEADER_PICTURE) {
1105 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_PICTURE;
1108 if (tmp & VA_ENC_PACKED_HEADER_SLICE) {
1109 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SLICE;
1112 if (tmp & VA_ENC_PACKED_HEADER_MISC) {
1113 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_MISC;
1116 enc_packed_header_idx = config_attrib_num;
1117 config_attrib_num++;
1120 if (attrib[VAConfigAttribEncInterlaced].value != VA_ATTRIB_NOT_SUPPORTED) {
1121 config_attrib[config_attrib_num].type = VAConfigAttribEncInterlaced;
1122 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
1123 config_attrib_num++;
1126 if (attrib[VAConfigAttribEncMaxRefFrames].value != VA_ATTRIB_NOT_SUPPORTED) {
1127 h264_maxref = attrib[VAConfigAttribEncMaxRefFrames].value;
1134 static int setup_encode()
1137 VASurfaceID *tmp_surfaceid;
1138 int codedbuf_size, i;
1139 static VASurfaceID src_surface[SURFACE_NUM];
1140 static VASurfaceID ref_surface[SURFACE_NUM];
1142 va_status = vaCreateConfig(va_dpy, h264_profile, VAEntrypointEncSlice,
1143 &config_attrib[0], config_attrib_num, &config_id);
1144 CHECK_VASTATUS(va_status, "vaCreateConfig");
1146 /* create source surfaces */
1147 va_status = vaCreateSurfaces(va_dpy,
1148 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
1149 &src_surface[0], SURFACE_NUM,
1151 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
1153 /* create reference surfaces */
1154 va_status = vaCreateSurfaces(va_dpy,
1155 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
1156 &ref_surface[0], SURFACE_NUM,
1158 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
1160 tmp_surfaceid = (VASurfaceID *)calloc(2 * SURFACE_NUM, sizeof(VASurfaceID));
1161 memcpy(tmp_surfaceid, src_surface, SURFACE_NUM * sizeof(VASurfaceID));
1162 memcpy(tmp_surfaceid + SURFACE_NUM, ref_surface, SURFACE_NUM * sizeof(VASurfaceID));
1164 /* Create a context for this encode pipe */
1165 va_status = vaCreateContext(va_dpy, config_id,
1166 frame_width_mbaligned, frame_height_mbaligned,
1168 tmp_surfaceid, 2 * SURFACE_NUM,
1170 CHECK_VASTATUS(va_status, "vaCreateContext");
1171 free(tmp_surfaceid);
1173 codedbuf_size = (frame_width_mbaligned * frame_height_mbaligned * 400) / (16*16);
1175 for (i = 0; i < SURFACE_NUM; i++) {
1176 /* create coded buffer once for all
1177 * other VA buffers which won't be used again after vaRenderPicture.
1178 * so APP can always vaCreateBuffer for every frame
1179 * but coded buffer need to be mapped and accessed after vaRenderPicture/vaEndPicture
1180 * so VA won't maintain the coded buffer
1182 va_status = vaCreateBuffer(va_dpy, context_id, VAEncCodedBufferType,
1183 codedbuf_size, 1, NULL, &gl_surfaces[i].coded_buf);
1184 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1187 /* create OpenGL objects */
1188 //glGenFramebuffers(SURFACE_NUM, fbos);
1190 for (i = 0; i < SURFACE_NUM; i++) {
1191 glGenTextures(1, &gl_surfaces[i].y_tex);
1192 glGenTextures(1, &gl_surfaces[i].cbcr_tex);
1195 for (i = 0; i < SURFACE_NUM; i++) {
1196 gl_surfaces[i].src_surface = src_surface[i];
1197 gl_surfaces[i].ref_surface = ref_surface[i];
1205 #define partition(ref, field, key, ascending) \
1208 while (ref[i].field < key) \
1210 while (ref[j].field > key) \
1213 while (ref[i].field > key) \
1215 while (ref[j].field < key) \
1227 static void sort_one(VAPictureH264 ref[], int left, int right,
1228 int ascending, int frame_idx)
1230 int i = left, j = right;
1235 key = ref[(left + right) / 2].frame_idx;
1236 partition(ref, frame_idx, key, ascending);
1238 key = ref[(left + right) / 2].TopFieldOrderCnt;
1239 partition(ref, TopFieldOrderCnt, (signed int)key, ascending);
1244 sort_one(ref, left, j, ascending, frame_idx);
1247 sort_one(ref, i, right, ascending, frame_idx);
1250 static void sort_two(VAPictureH264 ref[], int left, int right, unsigned int key, unsigned int frame_idx,
1251 int partition_ascending, int list0_ascending, int list1_ascending)
1253 int i = left, j = right;
1257 partition(ref, frame_idx, key, partition_ascending);
1259 partition(ref, TopFieldOrderCnt, (signed int)key, partition_ascending);
1263 sort_one(ref, left, i-1, list0_ascending, frame_idx);
1264 sort_one(ref, j+1, right, list1_ascending, frame_idx);
1267 static void update_ReferenceFrames(int frame_type)
1271 if (frame_type == FRAME_B)
1274 CurrentCurrPic.flags = VA_PICTURE_H264_SHORT_TERM_REFERENCE;
1276 if (numShortTerm > num_ref_frames)
1277 numShortTerm = num_ref_frames;
1278 for (i=numShortTerm-1; i>0; i--)
1279 ReferenceFrames[i] = ReferenceFrames[i-1];
1280 ReferenceFrames[0] = CurrentCurrPic;
1282 current_frame_num++;
1283 if (current_frame_num > MaxFrameNum)
1284 current_frame_num = 0;
1288 static int update_RefPicList(int frame_type)
1290 unsigned int current_poc = CurrentCurrPic.TopFieldOrderCnt;
1292 if (frame_type == FRAME_P) {
1293 memcpy(RefPicList0_P, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1294 sort_one(RefPicList0_P, 0, numShortTerm-1, 0, 1);
1297 if (frame_type == FRAME_B) {
1298 memcpy(RefPicList0_B, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1299 sort_two(RefPicList0_B, 0, numShortTerm-1, current_poc, 0,
1302 memcpy(RefPicList1_B, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1303 sort_two(RefPicList1_B, 0, numShortTerm-1, current_poc, 0,
1311 static int render_sequence(void)
1313 VABufferID seq_param_buf, rc_param_buf, misc_param_tmpbuf, render_id[2];
1315 VAEncMiscParameterBuffer *misc_param, *misc_param_tmp;
1316 VAEncMiscParameterRateControl *misc_rate_ctrl;
1318 seq_param.level_idc = 41 /*SH_LEVEL_3*/;
1319 seq_param.picture_width_in_mbs = frame_width_mbaligned / 16;
1320 seq_param.picture_height_in_mbs = frame_height_mbaligned / 16;
1321 seq_param.bits_per_second = frame_bitrate;
1323 seq_param.intra_period = intra_period;
1324 seq_param.intra_idr_period = intra_idr_period;
1325 seq_param.ip_period = ip_period;
1327 seq_param.max_num_ref_frames = num_ref_frames;
1328 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1329 seq_param.time_scale = TIMEBASE * 2;
1330 seq_param.num_units_in_tick = 1; /* Tc = num_units_in_tick / scale */
1331 seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 = Log2MaxPicOrderCntLsb - 4;
1332 seq_param.seq_fields.bits.log2_max_frame_num_minus4 = Log2MaxFrameNum - 4;;
1333 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1334 seq_param.seq_fields.bits.chroma_format_idc = 1;
1335 seq_param.seq_fields.bits.direct_8x8_inference_flag = 1;
1337 if (frame_width != frame_width_mbaligned ||
1338 frame_height != frame_height_mbaligned) {
1339 seq_param.frame_cropping_flag = 1;
1340 seq_param.frame_crop_left_offset = 0;
1341 seq_param.frame_crop_right_offset = (frame_width_mbaligned - frame_width)/2;
1342 seq_param.frame_crop_top_offset = 0;
1343 seq_param.frame_crop_bottom_offset = (frame_height_mbaligned - frame_height)/2;
1346 va_status = vaCreateBuffer(va_dpy, context_id,
1347 VAEncSequenceParameterBufferType,
1348 sizeof(seq_param), 1, &seq_param, &seq_param_buf);
1349 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1351 va_status = vaCreateBuffer(va_dpy, context_id,
1352 VAEncMiscParameterBufferType,
1353 sizeof(VAEncMiscParameterBuffer) + sizeof(VAEncMiscParameterRateControl),
1354 1, NULL, &rc_param_buf);
1355 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1357 vaMapBuffer(va_dpy, rc_param_buf, (void **)&misc_param);
1358 misc_param->type = VAEncMiscParameterTypeRateControl;
1359 misc_rate_ctrl = (VAEncMiscParameterRateControl *)misc_param->data;
1360 memset(misc_rate_ctrl, 0, sizeof(*misc_rate_ctrl));
1361 misc_rate_ctrl->bits_per_second = frame_bitrate;
1362 misc_rate_ctrl->target_percentage = 66;
1363 misc_rate_ctrl->window_size = 1000;
1364 misc_rate_ctrl->initial_qp = initial_qp;
1365 misc_rate_ctrl->min_qp = minimal_qp;
1366 misc_rate_ctrl->basic_unit_size = 0;
1367 vaUnmapBuffer(va_dpy, rc_param_buf);
1369 render_id[0] = seq_param_buf;
1370 render_id[1] = rc_param_buf;
1372 render_picture_and_delete(va_dpy, context_id, &render_id[0], 2);
1374 if (misc_priv_type != 0) {
1375 va_status = vaCreateBuffer(va_dpy, context_id,
1376 VAEncMiscParameterBufferType,
1377 sizeof(VAEncMiscParameterBuffer),
1378 1, NULL, &misc_param_tmpbuf);
1379 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1380 vaMapBuffer(va_dpy, misc_param_tmpbuf, (void **)&misc_param_tmp);
1381 misc_param_tmp->type = (VAEncMiscParameterType)misc_priv_type;
1382 misc_param_tmp->data[0] = misc_priv_value;
1383 vaUnmapBuffer(va_dpy, misc_param_tmpbuf);
1385 render_picture_and_delete(va_dpy, context_id, &misc_param_tmpbuf, 1);
1391 static int calc_poc(int pic_order_cnt_lsb, int frame_type)
1393 static int PicOrderCntMsb_ref = 0, pic_order_cnt_lsb_ref = 0;
1394 int prevPicOrderCntMsb, prevPicOrderCntLsb;
1395 int PicOrderCntMsb, TopFieldOrderCnt;
1397 if (frame_type == FRAME_IDR)
1398 prevPicOrderCntMsb = prevPicOrderCntLsb = 0;
1400 prevPicOrderCntMsb = PicOrderCntMsb_ref;
1401 prevPicOrderCntLsb = pic_order_cnt_lsb_ref;
1404 if ((pic_order_cnt_lsb < prevPicOrderCntLsb) &&
1405 ((prevPicOrderCntLsb - pic_order_cnt_lsb) >= (int)(MaxPicOrderCntLsb / 2)))
1406 PicOrderCntMsb = prevPicOrderCntMsb + MaxPicOrderCntLsb;
1407 else if ((pic_order_cnt_lsb > prevPicOrderCntLsb) &&
1408 ((pic_order_cnt_lsb - prevPicOrderCntLsb) > (int)(MaxPicOrderCntLsb / 2)))
1409 PicOrderCntMsb = prevPicOrderCntMsb - MaxPicOrderCntLsb;
1411 PicOrderCntMsb = prevPicOrderCntMsb;
1413 TopFieldOrderCnt = PicOrderCntMsb + pic_order_cnt_lsb;
1415 if (frame_type != FRAME_B) {
1416 PicOrderCntMsb_ref = PicOrderCntMsb;
1417 pic_order_cnt_lsb_ref = pic_order_cnt_lsb;
1420 return TopFieldOrderCnt;
1423 static int render_picture(int frame_type, int display_frame_num, int gop_start_display_frame_num)
1425 VABufferID pic_param_buf;
1429 pic_param.CurrPic.picture_id = gl_surfaces[display_frame_num % SURFACE_NUM].ref_surface;
1430 pic_param.CurrPic.frame_idx = current_frame_num;
1431 pic_param.CurrPic.flags = 0;
1432 pic_param.CurrPic.TopFieldOrderCnt = calc_poc((display_frame_num - gop_start_display_frame_num) % MaxPicOrderCntLsb, frame_type);
1433 pic_param.CurrPic.BottomFieldOrderCnt = pic_param.CurrPic.TopFieldOrderCnt;
1434 CurrentCurrPic = pic_param.CurrPic;
1436 memcpy(pic_param.ReferenceFrames, ReferenceFrames, numShortTerm*sizeof(VAPictureH264));
1437 for (i = numShortTerm; i < SURFACE_NUM; i++) {
1438 pic_param.ReferenceFrames[i].picture_id = VA_INVALID_SURFACE;
1439 pic_param.ReferenceFrames[i].flags = VA_PICTURE_H264_INVALID;
1442 pic_param.pic_fields.bits.idr_pic_flag = (frame_type == FRAME_IDR);
1443 pic_param.pic_fields.bits.reference_pic_flag = (frame_type != FRAME_B);
1444 pic_param.pic_fields.bits.entropy_coding_mode_flag = h264_entropy_mode;
1445 pic_param.pic_fields.bits.deblocking_filter_control_present_flag = 1;
1446 pic_param.frame_num = current_frame_num;
1447 pic_param.coded_buf = gl_surfaces[display_frame_num % SURFACE_NUM].coded_buf;
1448 pic_param.last_picture = false; // FIXME
1449 pic_param.pic_init_qp = initial_qp;
1451 va_status = vaCreateBuffer(va_dpy, context_id, VAEncPictureParameterBufferType,
1452 sizeof(pic_param), 1, &pic_param, &pic_param_buf);
1453 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1455 render_picture_and_delete(va_dpy, context_id, &pic_param_buf, 1);
1460 static int render_packedsequence(void)
1462 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1463 VABufferID packedseq_para_bufid, packedseq_data_bufid, render_id[2];
1464 unsigned int length_in_bits;
1465 unsigned char *packedseq_buffer = NULL;
1468 length_in_bits = build_packed_seq_buffer(&packedseq_buffer);
1470 packedheader_param_buffer.type = VAEncPackedHeaderSequence;
1472 packedheader_param_buffer.bit_length = length_in_bits; /*length_in_bits*/
1473 packedheader_param_buffer.has_emulation_bytes = 0;
1474 va_status = vaCreateBuffer(va_dpy,
1476 VAEncPackedHeaderParameterBufferType,
1477 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1478 &packedseq_para_bufid);
1479 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1481 va_status = vaCreateBuffer(va_dpy,
1483 VAEncPackedHeaderDataBufferType,
1484 (length_in_bits + 7) / 8, 1, packedseq_buffer,
1485 &packedseq_data_bufid);
1486 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1488 render_id[0] = packedseq_para_bufid;
1489 render_id[1] = packedseq_data_bufid;
1490 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1492 free(packedseq_buffer);
1498 static int render_packedpicture(void)
1500 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1501 VABufferID packedpic_para_bufid, packedpic_data_bufid, render_id[2];
1502 unsigned int length_in_bits;
1503 unsigned char *packedpic_buffer = NULL;
1506 length_in_bits = build_packed_pic_buffer(&packedpic_buffer);
1507 packedheader_param_buffer.type = VAEncPackedHeaderPicture;
1508 packedheader_param_buffer.bit_length = length_in_bits;
1509 packedheader_param_buffer.has_emulation_bytes = 0;
1511 va_status = vaCreateBuffer(va_dpy,
1513 VAEncPackedHeaderParameterBufferType,
1514 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1515 &packedpic_para_bufid);
1516 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1518 va_status = vaCreateBuffer(va_dpy,
1520 VAEncPackedHeaderDataBufferType,
1521 (length_in_bits + 7) / 8, 1, packedpic_buffer,
1522 &packedpic_data_bufid);
1523 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1525 render_id[0] = packedpic_para_bufid;
1526 render_id[1] = packedpic_data_bufid;
1527 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1529 free(packedpic_buffer);
1534 static void render_packedslice()
1536 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1537 VABufferID packedslice_para_bufid, packedslice_data_bufid, render_id[2];
1538 unsigned int length_in_bits;
1539 unsigned char *packedslice_buffer = NULL;
1542 length_in_bits = build_packed_slice_buffer(&packedslice_buffer);
1543 packedheader_param_buffer.type = VAEncPackedHeaderSlice;
1544 packedheader_param_buffer.bit_length = length_in_bits;
1545 packedheader_param_buffer.has_emulation_bytes = 0;
1547 va_status = vaCreateBuffer(va_dpy,
1549 VAEncPackedHeaderParameterBufferType,
1550 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1551 &packedslice_para_bufid);
1552 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1554 va_status = vaCreateBuffer(va_dpy,
1556 VAEncPackedHeaderDataBufferType,
1557 (length_in_bits + 7) / 8, 1, packedslice_buffer,
1558 &packedslice_data_bufid);
1559 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1561 render_id[0] = packedslice_para_bufid;
1562 render_id[1] = packedslice_data_bufid;
1563 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1565 free(packedslice_buffer);
1568 static int render_slice(int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num, int frame_type)
1570 VABufferID slice_param_buf;
1574 update_RefPicList(frame_type);
1576 /* one frame, one slice */
1577 slice_param.macroblock_address = 0;
1578 slice_param.num_macroblocks = frame_width_mbaligned * frame_height_mbaligned/(16*16); /* Measured by MB */
1579 slice_param.slice_type = (frame_type == FRAME_IDR)?2:frame_type;
1580 if (frame_type == FRAME_IDR) {
1581 if (encoding_frame_num != 0)
1582 ++slice_param.idr_pic_id;
1583 } else if (frame_type == FRAME_P) {
1584 int refpiclist0_max = h264_maxref & 0xffff;
1585 memcpy(slice_param.RefPicList0, RefPicList0_P, refpiclist0_max*sizeof(VAPictureH264));
1587 for (i = refpiclist0_max; i < 32; i++) {
1588 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1589 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1591 } else if (frame_type == FRAME_B) {
1592 int refpiclist0_max = h264_maxref & 0xffff;
1593 int refpiclist1_max = (h264_maxref >> 16) & 0xffff;
1595 memcpy(slice_param.RefPicList0, RefPicList0_B, refpiclist0_max*sizeof(VAPictureH264));
1596 for (i = refpiclist0_max; i < 32; i++) {
1597 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1598 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1601 memcpy(slice_param.RefPicList1, RefPicList1_B, refpiclist1_max*sizeof(VAPictureH264));
1602 for (i = refpiclist1_max; i < 32; i++) {
1603 slice_param.RefPicList1[i].picture_id = VA_INVALID_SURFACE;
1604 slice_param.RefPicList1[i].flags = VA_PICTURE_H264_INVALID;
1608 slice_param.slice_alpha_c0_offset_div2 = 0;
1609 slice_param.slice_beta_offset_div2 = 0;
1610 slice_param.direct_spatial_mv_pred_flag = 1;
1611 slice_param.pic_order_cnt_lsb = (display_frame_num - gop_start_display_frame_num) % MaxPicOrderCntLsb;
1614 if (h264_packedheader &&
1615 config_attrib[enc_packed_header_idx].value & VA_ENC_PACKED_HEADER_SLICE)
1616 render_packedslice();
1618 va_status = vaCreateBuffer(va_dpy, context_id, VAEncSliceParameterBufferType,
1619 sizeof(slice_param), 1, &slice_param, &slice_param_buf);
1620 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1622 render_picture_and_delete(va_dpy, context_id, &slice_param_buf, 1);
1629 void H264EncoderImpl::save_codeddata(storage_task task)
1631 VACodedBufferSegment *buf_list = NULL;
1633 unsigned int coded_size = 0;
1637 const int64_t global_delay = (ip_period - 1) * (TIMEBASE / MAX_FPS); // So we never get negative dts.
1639 va_status = vaMapBuffer(va_dpy, gl_surfaces[task.display_order % SURFACE_NUM].coded_buf, (void **)(&buf_list));
1640 CHECK_VASTATUS(va_status, "vaMapBuffer");
1641 while (buf_list != NULL) {
1642 data.append(reinterpret_cast<const char *>(buf_list->buf), buf_list->size);
1643 buf_list = (VACodedBufferSegment *) buf_list->next;
1645 frame_size += coded_size;
1647 vaUnmapBuffer(va_dpy, gl_surfaces[task.display_order % SURFACE_NUM].coded_buf);
1652 memset(&pkt, 0, sizeof(pkt));
1654 pkt.data = reinterpret_cast<uint8_t *>(&data[0]);
1655 pkt.size = data.size();
1656 pkt.stream_index = 0;
1657 if (task.frame_type == FRAME_IDR || task.frame_type == FRAME_I) {
1658 pkt.flags = AV_PKT_FLAG_KEY;
1663 httpd->add_packet(pkt, task.pts + global_delay, task.dts + global_delay);
1665 // Encode and add all audio frames up to and including the pts of this video frame.
1668 vector<float> audio;
1670 unique_lock<mutex> lock(frame_queue_mutex);
1671 frame_queue_nonempty.wait(lock, [this]{ return storage_thread_should_quit || !pending_audio_frames.empty(); });
1672 if (storage_thread_should_quit && pending_audio_frames.empty()) return;
1673 auto it = pending_audio_frames.begin();
1674 if (it->first > task.pts) break;
1675 audio_pts = it->first;
1676 audio = move(it->second);
1677 pending_audio_frames.erase(it);
1680 AVFrame *frame = avcodec_alloc_frame();
1681 frame->nb_samples = audio.size() / 2;
1682 frame->format = AV_SAMPLE_FMT_S32;
1683 frame->channel_layout = AV_CH_LAYOUT_STEREO;
1685 unique_ptr<int32_t[]> int_samples(new int32_t[audio.size()]);
1686 int ret = avcodec_fill_audio_frame(frame, 2, AV_SAMPLE_FMT_S32, (const uint8_t*)int_samples.get(), audio.size() * sizeof(int32_t), 1);
1688 fprintf(stderr, "avcodec_fill_audio_frame() failed with %d\n", ret);
1691 for (int i = 0; i < frame->nb_samples * 2; ++i) {
1692 if (audio[i] >= 1.0f) {
1693 int_samples[i] = 2147483647;
1694 } else if (audio[i] <= -1.0f) {
1695 int_samples[i] = -2147483647;
1697 int_samples[i] = lrintf(audio[i] * 2147483647.0f);
1702 av_init_packet(&pkt);
1706 avcodec_encode_audio2(context_audio, &pkt, frame, &got_output);
1708 pkt.stream_index = 1;
1709 httpd->add_packet(pkt, audio_pts + global_delay, audio_pts + global_delay);
1711 // TODO: Delayed frames.
1712 avcodec_free_frame(&frame);
1713 av_free_packet(&pkt);
1714 if (audio_pts == task.pts) break;
1718 printf("\r "); /* return back to startpoint */
1719 switch (encode_order % 4) {
1733 printf("%08lld", encode_order);
1734 printf("(%06d bytes coded)", coded_size);
1739 // this is weird. but it seems to put a new frame onto the queue
1740 void H264EncoderImpl::storage_task_enqueue(storage_task task)
1742 unique_lock<mutex> lock(storage_task_queue_mutex);
1743 storage_task_queue.push(move(task));
1744 srcsurface_status[task.display_order % SURFACE_NUM] = SRC_SURFACE_IN_ENCODING;
1745 storage_task_queue_changed.notify_all();
1748 void H264EncoderImpl::storage_task_thread()
1751 storage_task current;
1753 // wait until there's an encoded frame
1754 unique_lock<mutex> lock(storage_task_queue_mutex);
1755 storage_task_queue_changed.wait(lock, [this]{ return storage_thread_should_quit || !storage_task_queue.empty(); });
1756 if (storage_thread_should_quit && storage_task_queue.empty()) return;
1757 current = move(storage_task_queue.front());
1758 storage_task_queue.pop();
1763 // waits for data, then saves it to disk.
1764 va_status = vaSyncSurface(va_dpy, gl_surfaces[current.display_order % SURFACE_NUM].src_surface);
1765 CHECK_VASTATUS(va_status, "vaSyncSurface");
1766 save_codeddata(move(current));
1769 unique_lock<mutex> lock(storage_task_queue_mutex);
1770 srcsurface_status[current.display_order % SURFACE_NUM] = SRC_SURFACE_FREE;
1771 storage_task_queue_changed.notify_all();
1776 static int release_encode()
1780 for (i = 0; i < SURFACE_NUM; i++) {
1781 vaDestroyBuffer(va_dpy, gl_surfaces[i].coded_buf);
1782 vaDestroySurfaces(va_dpy, &gl_surfaces[i].src_surface, 1);
1783 vaDestroySurfaces(va_dpy, &gl_surfaces[i].ref_surface, 1);
1786 vaDestroyContext(va_dpy, context_id);
1787 vaDestroyConfig(va_dpy, config_id);
1792 static int deinit_va()
1794 vaTerminate(va_dpy);
1796 va_close_display(va_dpy);
1802 H264EncoderImpl::H264EncoderImpl(QSurface *surface, int width, int height, HTTPD *httpd)
1803 : current_storage_frame(0), surface(surface), httpd(httpd)
1805 AVCodec *codec_audio = avcodec_find_encoder(AUDIO_OUTPUT_CODEC);
1806 context_audio = avcodec_alloc_context3(codec_audio);
1807 context_audio->bit_rate = AUDIO_OUTPUT_BIT_RATE;
1808 context_audio->sample_rate = OUTPUT_FREQUENCY;
1809 context_audio->sample_fmt = AUDIO_OUTPUT_SAMPLE_FMT;
1810 context_audio->channels = 2;
1811 context_audio->channel_layout = AV_CH_LAYOUT_STEREO;
1812 context_audio->time_base = AVRational{1, TIMEBASE};
1813 if (avcodec_open2(context_audio, codec_audio, NULL) < 0) {
1814 fprintf(stderr, "Could not open codec\n");
1818 frame_width = width;
1819 frame_height = height;
1820 frame_width_mbaligned = (frame_width + 15) & (~15);
1821 frame_height_mbaligned = (frame_height + 15) & (~15);
1822 frame_bitrate = 15000000; // / 60;
1829 // No frames are ready yet.
1830 memset(srcsurface_status, SRC_SURFACE_FREE, sizeof(srcsurface_status));
1832 memset(&seq_param, 0, sizeof(seq_param));
1833 memset(&pic_param, 0, sizeof(pic_param));
1834 memset(&slice_param, 0, sizeof(slice_param));
1836 storage_thread = thread(&H264EncoderImpl::storage_task_thread, this);
1838 encode_thread = thread([this]{
1839 //SDL_GL_MakeCurrent(window, context);
1840 QOpenGLContext *context = create_context(this->surface);
1841 eglBindAPI(EGL_OPENGL_API);
1842 if (!make_current(context, this->surface)) {
1843 printf("display=%p surface=%p context=%p curr=%p err=%d\n", eglGetCurrentDisplay(), this->surface, context, eglGetCurrentContext(),
1847 encode_thread_func();
1851 H264EncoderImpl::~H264EncoderImpl()
1854 unique_lock<mutex> lock(frame_queue_mutex);
1855 encode_thread_should_quit = true;
1856 frame_queue_nonempty.notify_all();
1858 encode_thread.join();
1860 unique_lock<mutex> lock(storage_task_queue_mutex);
1861 storage_thread_should_quit = true;
1862 frame_queue_nonempty.notify_all();
1863 storage_task_queue_changed.notify_all();
1865 storage_thread.join();
1871 bool H264EncoderImpl::begin_frame(GLuint *y_tex, GLuint *cbcr_tex)
1874 // Wait until this frame slot is done encoding.
1875 unique_lock<mutex> lock(storage_task_queue_mutex);
1876 storage_task_queue_changed.wait(lock, [this]{ return storage_thread_should_quit || (srcsurface_status[current_storage_frame % SURFACE_NUM] == SRC_SURFACE_FREE); });
1877 if (storage_thread_should_quit) return false;
1880 //*fbo = fbos[current_storage_frame % SURFACE_NUM];
1881 GLSurface *surf = &gl_surfaces[current_storage_frame % SURFACE_NUM];
1882 *y_tex = surf->y_tex;
1883 *cbcr_tex = surf->cbcr_tex;
1885 VASurfaceID surface = surf->src_surface;
1886 VAStatus va_status = vaDeriveImage(va_dpy, surface, &surf->surface_image);
1887 CHECK_VASTATUS(va_status, "vaDeriveImage");
1889 VABufferInfo buf_info;
1890 buf_info.mem_type = VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME; // or VA_SURFACE_ATTRIB_MEM_TYPE_KERNEL_DRM?
1891 va_status = vaAcquireBufferHandle(va_dpy, surf->surface_image.buf, &buf_info);
1892 CHECK_VASTATUS(va_status, "vaAcquireBufferHandle");
1895 surf->y_egl_image = EGL_NO_IMAGE_KHR;
1896 EGLint y_attribs[] = {
1897 EGL_WIDTH, frame_width,
1898 EGL_HEIGHT, frame_height,
1899 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('R', '8', ' ', ' '),
1900 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
1901 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[0]),
1902 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[0]),
1906 surf->y_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, y_attribs);
1907 assert(surf->y_egl_image != EGL_NO_IMAGE_KHR);
1909 // Associate Y image to a texture.
1910 glBindTexture(GL_TEXTURE_2D, *y_tex);
1911 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->y_egl_image);
1913 // Create CbCr image.
1914 surf->cbcr_egl_image = EGL_NO_IMAGE_KHR;
1915 EGLint cbcr_attribs[] = {
1916 EGL_WIDTH, frame_width,
1917 EGL_HEIGHT, frame_height,
1918 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('G', 'R', '8', '8'),
1919 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
1920 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[1]),
1921 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[1]),
1925 surf->cbcr_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, cbcr_attribs);
1926 assert(surf->cbcr_egl_image != EGL_NO_IMAGE_KHR);
1928 // Associate CbCr image to a texture.
1929 glBindTexture(GL_TEXTURE_2D, *cbcr_tex);
1930 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->cbcr_egl_image);
1935 void H264EncoderImpl::add_audio(int64_t pts, vector<float> audio)
1938 unique_lock<mutex> lock(frame_queue_mutex);
1939 pending_audio_frames[pts] = move(audio);
1941 frame_queue_nonempty.notify_all();
1944 void H264EncoderImpl::end_frame(RefCountedGLsync fence, int64_t pts, const vector<RefCountedFrame> &input_frames)
1947 unique_lock<mutex> lock(frame_queue_mutex);
1948 pending_video_frames[current_storage_frame] = PendingFrame{ fence, input_frames, pts };
1949 ++current_storage_frame;
1951 frame_queue_nonempty.notify_all();
1954 void H264EncoderImpl::encode_thread_func()
1956 int64_t last_dts = -1;
1957 int gop_start_display_frame_num = 0;
1958 for (int encoding_frame_num = 0; ; ++encoding_frame_num) {
1961 int frame_type, display_frame_num;
1962 encoding2display_order(encoding_frame_num, intra_period, intra_idr_period, ip_period,
1963 &display_frame_num, &frame_type, &pts_lag);
1964 if (frame_type == FRAME_IDR) {
1966 current_frame_num = 0;
1967 gop_start_display_frame_num = display_frame_num;
1971 unique_lock<mutex> lock(frame_queue_mutex);
1972 frame_queue_nonempty.wait(lock, [this, display_frame_num]{
1973 return encode_thread_should_quit || pending_video_frames.count(display_frame_num) != 0;
1975 if (encode_thread_should_quit && pending_video_frames.count(display_frame_num) == 0) {
1976 // We have queued frames that were supposed to be B-frames,
1977 // but will be no P-frame to encode them against. Encode them all
1978 // as P-frames instead. Note that this happens under the mutex,
1979 // but nobody else uses it at this point, since we're shutting down,
1980 // so there's no contention.
1981 encode_remaining_frames_as_p(encoding_frame_num, gop_start_display_frame_num, last_dts);
1984 frame = move(pending_video_frames[display_frame_num]);
1985 pending_video_frames.erase(display_frame_num);
1989 // Determine the dts of this frame.
1991 if (pts_lag == -1) {
1992 assert(last_dts != -1);
1993 dts = last_dts + (TIMEBASE / MAX_FPS);
1995 dts = frame.pts - pts_lag;
1999 encode_frame(frame, encoding_frame_num, display_frame_num, gop_start_display_frame_num, frame_type, frame.pts, dts);
2003 void H264EncoderImpl::encode_remaining_frames_as_p(int encoding_frame_num, int gop_start_display_frame_num, int64_t last_dts)
2005 if (pending_video_frames.empty()) {
2009 for (auto &pending_frame : pending_video_frames) {
2010 int display_frame_num = pending_frame.first;
2011 assert(display_frame_num > 0);
2012 PendingFrame frame = move(pending_frame.second);
2013 int64_t dts = last_dts + (TIMEBASE / MAX_FPS);
2014 printf("Finalizing encode: Encoding leftover frame %d as P-frame instead of B-frame.\n", display_frame_num);
2015 encode_frame(frame, encoding_frame_num++, display_frame_num, gop_start_display_frame_num, FRAME_P, frame.pts, dts);
2020 void H264EncoderImpl::encode_frame(H264EncoderImpl::PendingFrame frame, int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num,
2021 int frame_type, int64_t pts, int64_t dts)
2023 // Wait for the GPU to be done with the frame.
2024 glClientWaitSync(frame.fence.get(), 0, 0);
2026 // Release back any input frames we needed to render this frame.
2027 frame.input_frames.clear();
2030 GLSurface *surf = &gl_surfaces[display_frame_num % SURFACE_NUM];
2031 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->y_egl_image);
2032 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->cbcr_egl_image);
2033 VAStatus va_status = vaReleaseBufferHandle(va_dpy, surf->surface_image.buf);
2034 CHECK_VASTATUS(va_status, "vaReleaseBufferHandle");
2035 va_status = vaDestroyImage(va_dpy, surf->surface_image.image_id);
2036 CHECK_VASTATUS(va_status, "vaDestroyImage");
2038 VASurfaceID surface = surf->src_surface;
2040 // Schedule the frame for encoding.
2041 va_status = vaBeginPicture(va_dpy, context_id, surface);
2042 CHECK_VASTATUS(va_status, "vaBeginPicture");
2044 if (frame_type == FRAME_IDR) {
2046 render_picture(frame_type, display_frame_num, gop_start_display_frame_num);
2047 if (h264_packedheader) {
2048 render_packedsequence();
2049 render_packedpicture();
2052 //render_sequence();
2053 render_picture(frame_type, display_frame_num, gop_start_display_frame_num);
2055 render_slice(encoding_frame_num, display_frame_num, gop_start_display_frame_num, frame_type);
2057 va_status = vaEndPicture(va_dpy, context_id);
2058 CHECK_VASTATUS(va_status, "vaEndPicture");
2060 // so now the data is done encoding (well, async job kicked off)...
2061 // we send that to the storage thread
2063 tmp.display_order = display_frame_num;
2064 tmp.frame_type = frame_type;
2067 storage_task_enqueue(move(tmp));
2069 update_ReferenceFrames(frame_type);
2073 H264Encoder::H264Encoder(QSurface *surface, int width, int height, HTTPD *httpd)
2074 : impl(new H264EncoderImpl(surface, width, height, httpd)) {}
2076 // Must be defined here because unique_ptr<> destructor needs to know the impl.
2077 H264Encoder::~H264Encoder() {}
2079 void H264Encoder::add_audio(int64_t pts, std::vector<float> audio)
2081 impl->add_audio(pts, audio);
2084 bool H264Encoder::begin_frame(GLuint *y_tex, GLuint *cbcr_tex)
2086 return impl->begin_frame(y_tex, cbcr_tex);
2089 void H264Encoder::end_frame(RefCountedGLsync fence, int64_t pts, const std::vector<RefCountedFrame> &input_frames)
2091 impl->end_frame(fence, pts, input_frames);