2 #include "h264encode.h"
4 #include <EGL/eglplatform.h>
9 #include <libavcodec/avcodec.h>
10 #include <libavformat/avio.h>
11 #include <libavutil/mathematics.h>
12 #include <libavutil/rational.h>
13 #include <libdrm/drm_fourcc.h>
19 #include <va/va_drmcommon.h>
20 #include <va/va_enc_h264.h>
21 #include <va/va_x11.h>
22 #include <condition_variable>
35 #define CHECK_VASTATUS(va_status, func) \
36 if (va_status != VA_STATUS_SUCCESS) { \
37 fprintf(stderr, "%s:%d (%s) failed with %d\n", __func__, __LINE__, func, va_status); \
41 //#include "loadsurface.h"
43 #define NAL_REF_IDC_NONE 0
44 #define NAL_REF_IDC_LOW 1
45 #define NAL_REF_IDC_MEDIUM 2
46 #define NAL_REF_IDC_HIGH 3
54 #define SLICE_TYPE_P 0
55 #define SLICE_TYPE_B 1
56 #define SLICE_TYPE_I 2
57 #define IS_P_SLICE(type) (SLICE_TYPE_P == (type))
58 #define IS_B_SLICE(type) (SLICE_TYPE_B == (type))
59 #define IS_I_SLICE(type) (SLICE_TYPE_I == (type))
62 #define ENTROPY_MODE_CAVLC 0
63 #define ENTROPY_MODE_CABAC 1
65 #define PROFILE_IDC_BASELINE 66
66 #define PROFILE_IDC_MAIN 77
67 #define PROFILE_IDC_HIGH 100
69 #define BITSTREAM_ALLOCATE_STEPPING 4096
71 #define SURFACE_NUM 16 /* 16 surfaces for source YUV */
72 static VADisplay va_dpy;
73 static VAProfile h264_profile = (VAProfile)~0;
74 static VAConfigAttrib config_attrib[VAConfigAttribTypeMax];
75 static int config_attrib_num = 0, enc_packed_header_idx;
78 VASurfaceID src_surface, ref_surface;
81 VAImage surface_image;
82 GLuint y_tex, cbcr_tex;
83 EGLImage y_egl_image, cbcr_egl_image;
85 GLSurface gl_surfaces[SURFACE_NUM];
87 static VAConfigID config_id;
88 static VAContextID context_id;
89 static VAEncSequenceParameterBufferH264 seq_param;
90 static VAEncPictureParameterBufferH264 pic_param;
91 static VAEncSliceParameterBufferH264 slice_param;
92 static VAPictureH264 CurrentCurrPic;
93 static VAPictureH264 ReferenceFrames[16], RefPicList0_P[32], RefPicList0_B[32], RefPicList1_B[32];
95 static unsigned int MaxFrameNum = (2<<16);
96 static unsigned int MaxPicOrderCntLsb = (2<<8);
97 static unsigned int Log2MaxFrameNum = 16;
98 static unsigned int Log2MaxPicOrderCntLsb = 8;
100 static unsigned int num_ref_frames = 2;
101 static unsigned int numShortTerm = 0;
102 static int constraint_set_flag = 0;
103 static int h264_packedheader = 0; /* support pack header? */
104 static int h264_maxref = (1<<16|1);
105 static int h264_entropy_mode = 1; /* cabac */
107 static char *coded_fn = NULL;
109 static int frame_width = 176;
110 static int frame_height = 144;
111 static int frame_width_mbaligned;
112 static int frame_height_mbaligned;
113 static int frame_rate = 60;
114 static unsigned int frame_bitrate = 0;
115 static unsigned int frame_slices = 1;
116 static double frame_size = 0;
117 static int initial_qp = 15;
118 //static int initial_qp = 28;
119 static int minimal_qp = 0;
120 static int intra_period = 30;
121 static int intra_idr_period = 60;
122 static int ip_period = 3;
123 static int rc_mode = -1;
124 static int rc_default_modes[] = {
127 VA_RC_VBR_CONSTRAINED,
132 static unsigned long long current_frame_encoding = 0;
133 static unsigned long long current_frame_display = 0;
134 static unsigned long long current_IDR_display = 0;
135 static unsigned int current_frame_num = 0;
136 static int current_frame_type;
138 static int misc_priv_type = 0;
139 static int misc_priv_value = 0;
141 /* thread to save coded data */
142 #define SRC_SURFACE_FREE 0
143 #define SRC_SURFACE_IN_ENCODING 1
146 unsigned int *buffer;
148 int max_size_in_dword;
150 typedef struct __bitstream bitstream;
155 va_swap32(unsigned int val)
157 unsigned char *pval = (unsigned char *)&val;
159 return ((pval[0] << 24) |
166 bitstream_start(bitstream *bs)
168 bs->max_size_in_dword = BITSTREAM_ALLOCATE_STEPPING;
169 bs->buffer = (unsigned int *)calloc(bs->max_size_in_dword * sizeof(int), 1);
174 bitstream_end(bitstream *bs)
176 int pos = (bs->bit_offset >> 5);
177 int bit_offset = (bs->bit_offset & 0x1f);
178 int bit_left = 32 - bit_offset;
181 bs->buffer[pos] = va_swap32((bs->buffer[pos] << bit_left));
186 bitstream_put_ui(bitstream *bs, unsigned int val, int size_in_bits)
188 int pos = (bs->bit_offset >> 5);
189 int bit_offset = (bs->bit_offset & 0x1f);
190 int bit_left = 32 - bit_offset;
195 bs->bit_offset += size_in_bits;
197 if (bit_left > size_in_bits) {
198 bs->buffer[pos] = (bs->buffer[pos] << size_in_bits | val);
200 size_in_bits -= bit_left;
201 bs->buffer[pos] = (bs->buffer[pos] << bit_left) | (val >> size_in_bits);
202 bs->buffer[pos] = va_swap32(bs->buffer[pos]);
204 if (pos + 1 == bs->max_size_in_dword) {
205 bs->max_size_in_dword += BITSTREAM_ALLOCATE_STEPPING;
206 bs->buffer = (unsigned int *)realloc(bs->buffer, bs->max_size_in_dword * sizeof(unsigned int));
209 bs->buffer[pos + 1] = val;
214 bitstream_put_ue(bitstream *bs, unsigned int val)
216 int size_in_bits = 0;
224 bitstream_put_ui(bs, 0, size_in_bits - 1); // leading zero
225 bitstream_put_ui(bs, val, size_in_bits);
229 bitstream_put_se(bitstream *bs, int val)
231 unsigned int new_val;
236 new_val = 2 * val - 1;
238 bitstream_put_ue(bs, new_val);
242 bitstream_byte_aligning(bitstream *bs, int bit)
244 int bit_offset = (bs->bit_offset & 0x7);
245 int bit_left = 8 - bit_offset;
251 assert(bit == 0 || bit == 1);
254 new_val = (1 << bit_left) - 1;
258 bitstream_put_ui(bs, new_val, bit_left);
262 rbsp_trailing_bits(bitstream *bs)
264 bitstream_put_ui(bs, 1, 1);
265 bitstream_byte_aligning(bs, 0);
268 static void nal_start_code_prefix(bitstream *bs)
270 bitstream_put_ui(bs, 0x00000001, 32);
273 static void nal_header(bitstream *bs, int nal_ref_idc, int nal_unit_type)
275 bitstream_put_ui(bs, 0, 1); /* forbidden_zero_bit: 0 */
276 bitstream_put_ui(bs, nal_ref_idc, 2);
277 bitstream_put_ui(bs, nal_unit_type, 5);
280 static void sps_rbsp(bitstream *bs)
282 int profile_idc = PROFILE_IDC_BASELINE;
284 if (h264_profile == VAProfileH264High)
285 profile_idc = PROFILE_IDC_HIGH;
286 else if (h264_profile == VAProfileH264Main)
287 profile_idc = PROFILE_IDC_MAIN;
289 bitstream_put_ui(bs, profile_idc, 8); /* profile_idc */
290 bitstream_put_ui(bs, !!(constraint_set_flag & 1), 1); /* constraint_set0_flag */
291 bitstream_put_ui(bs, !!(constraint_set_flag & 2), 1); /* constraint_set1_flag */
292 bitstream_put_ui(bs, !!(constraint_set_flag & 4), 1); /* constraint_set2_flag */
293 bitstream_put_ui(bs, !!(constraint_set_flag & 8), 1); /* constraint_set3_flag */
294 bitstream_put_ui(bs, 0, 4); /* reserved_zero_4bits */
295 bitstream_put_ui(bs, seq_param.level_idc, 8); /* level_idc */
296 bitstream_put_ue(bs, seq_param.seq_parameter_set_id); /* seq_parameter_set_id */
298 if ( profile_idc == PROFILE_IDC_HIGH) {
299 bitstream_put_ue(bs, 1); /* chroma_format_idc = 1, 4:2:0 */
300 bitstream_put_ue(bs, 0); /* bit_depth_luma_minus8 */
301 bitstream_put_ue(bs, 0); /* bit_depth_chroma_minus8 */
302 bitstream_put_ui(bs, 0, 1); /* qpprime_y_zero_transform_bypass_flag */
303 bitstream_put_ui(bs, 0, 1); /* seq_scaling_matrix_present_flag */
306 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_frame_num_minus4); /* log2_max_frame_num_minus4 */
307 bitstream_put_ue(bs, seq_param.seq_fields.bits.pic_order_cnt_type); /* pic_order_cnt_type */
309 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0)
310 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4); /* log2_max_pic_order_cnt_lsb_minus4 */
315 bitstream_put_ue(bs, seq_param.max_num_ref_frames); /* num_ref_frames */
316 bitstream_put_ui(bs, 0, 1); /* gaps_in_frame_num_value_allowed_flag */
318 bitstream_put_ue(bs, seq_param.picture_width_in_mbs - 1); /* pic_width_in_mbs_minus1 */
319 bitstream_put_ue(bs, seq_param.picture_height_in_mbs - 1); /* pic_height_in_map_units_minus1 */
320 bitstream_put_ui(bs, seq_param.seq_fields.bits.frame_mbs_only_flag, 1); /* frame_mbs_only_flag */
322 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
326 bitstream_put_ui(bs, seq_param.seq_fields.bits.direct_8x8_inference_flag, 1); /* direct_8x8_inference_flag */
327 bitstream_put_ui(bs, seq_param.frame_cropping_flag, 1); /* frame_cropping_flag */
329 if (seq_param.frame_cropping_flag) {
330 bitstream_put_ue(bs, seq_param.frame_crop_left_offset); /* frame_crop_left_offset */
331 bitstream_put_ue(bs, seq_param.frame_crop_right_offset); /* frame_crop_right_offset */
332 bitstream_put_ue(bs, seq_param.frame_crop_top_offset); /* frame_crop_top_offset */
333 bitstream_put_ue(bs, seq_param.frame_crop_bottom_offset); /* frame_crop_bottom_offset */
336 //if ( frame_bit_rate < 0 ) { //TODO EW: the vui header isn't correct
338 bitstream_put_ui(bs, 0, 1); /* vui_parameters_present_flag */
340 bitstream_put_ui(bs, 1, 1); /* vui_parameters_present_flag */
341 bitstream_put_ui(bs, 0, 1); /* aspect_ratio_info_present_flag */
342 bitstream_put_ui(bs, 0, 1); /* overscan_info_present_flag */
343 bitstream_put_ui(bs, 0, 1); /* video_signal_type_present_flag */
344 bitstream_put_ui(bs, 0, 1); /* chroma_loc_info_present_flag */
345 bitstream_put_ui(bs, 1, 1); /* timing_info_present_flag */
347 bitstream_put_ui(bs, 1, 32); // FPS
348 bitstream_put_ui(bs, TIMEBASE * 2, 32); // FPS
349 bitstream_put_ui(bs, 1, 1);
351 bitstream_put_ui(bs, 1, 1); /* nal_hrd_parameters_present_flag */
354 bitstream_put_ue(bs, 0); /* cpb_cnt_minus1 */
355 bitstream_put_ui(bs, 4, 4); /* bit_rate_scale */
356 bitstream_put_ui(bs, 6, 4); /* cpb_size_scale */
358 bitstream_put_ue(bs, frame_bitrate - 1); /* bit_rate_value_minus1[0] */
359 bitstream_put_ue(bs, frame_bitrate*8 - 1); /* cpb_size_value_minus1[0] */
360 bitstream_put_ui(bs, 1, 1); /* cbr_flag[0] */
362 bitstream_put_ui(bs, 23, 5); /* initial_cpb_removal_delay_length_minus1 */
363 bitstream_put_ui(bs, 23, 5); /* cpb_removal_delay_length_minus1 */
364 bitstream_put_ui(bs, 23, 5); /* dpb_output_delay_length_minus1 */
365 bitstream_put_ui(bs, 23, 5); /* time_offset_length */
367 bitstream_put_ui(bs, 0, 1); /* vcl_hrd_parameters_present_flag */
368 bitstream_put_ui(bs, 0, 1); /* low_delay_hrd_flag */
370 bitstream_put_ui(bs, 0, 1); /* pic_struct_present_flag */
371 bitstream_put_ui(bs, 0, 1); /* bitstream_restriction_flag */
374 rbsp_trailing_bits(bs); /* rbsp_trailing_bits */
378 static void pps_rbsp(bitstream *bs)
380 bitstream_put_ue(bs, pic_param.pic_parameter_set_id); /* pic_parameter_set_id */
381 bitstream_put_ue(bs, pic_param.seq_parameter_set_id); /* seq_parameter_set_id */
383 bitstream_put_ui(bs, pic_param.pic_fields.bits.entropy_coding_mode_flag, 1); /* entropy_coding_mode_flag */
385 bitstream_put_ui(bs, 0, 1); /* pic_order_present_flag: 0 */
387 bitstream_put_ue(bs, 0); /* num_slice_groups_minus1 */
389 bitstream_put_ue(bs, pic_param.num_ref_idx_l0_active_minus1); /* num_ref_idx_l0_active_minus1 */
390 bitstream_put_ue(bs, pic_param.num_ref_idx_l1_active_minus1); /* num_ref_idx_l1_active_minus1 1 */
392 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_pred_flag, 1); /* weighted_pred_flag: 0 */
393 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_bipred_idc, 2); /* weighted_bipred_idc: 0 */
395 bitstream_put_se(bs, pic_param.pic_init_qp - 26); /* pic_init_qp_minus26 */
396 bitstream_put_se(bs, 0); /* pic_init_qs_minus26 */
397 bitstream_put_se(bs, 0); /* chroma_qp_index_offset */
399 bitstream_put_ui(bs, pic_param.pic_fields.bits.deblocking_filter_control_present_flag, 1); /* deblocking_filter_control_present_flag */
400 bitstream_put_ui(bs, 0, 1); /* constrained_intra_pred_flag */
401 bitstream_put_ui(bs, 0, 1); /* redundant_pic_cnt_present_flag */
404 bitstream_put_ui(bs, pic_param.pic_fields.bits.transform_8x8_mode_flag, 1); /*transform_8x8_mode_flag */
405 bitstream_put_ui(bs, 0, 1); /* pic_scaling_matrix_present_flag */
406 bitstream_put_se(bs, pic_param.second_chroma_qp_index_offset ); /*second_chroma_qp_index_offset */
408 rbsp_trailing_bits(bs);
411 static void slice_header(bitstream *bs)
413 int first_mb_in_slice = slice_param.macroblock_address;
415 bitstream_put_ue(bs, first_mb_in_slice); /* first_mb_in_slice: 0 */
416 bitstream_put_ue(bs, slice_param.slice_type); /* slice_type */
417 bitstream_put_ue(bs, slice_param.pic_parameter_set_id); /* pic_parameter_set_id: 0 */
418 bitstream_put_ui(bs, pic_param.frame_num, seq_param.seq_fields.bits.log2_max_frame_num_minus4 + 4); /* frame_num */
420 /* frame_mbs_only_flag == 1 */
421 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
426 if (pic_param.pic_fields.bits.idr_pic_flag)
427 bitstream_put_ue(bs, slice_param.idr_pic_id); /* idr_pic_id: 0 */
429 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0) {
430 bitstream_put_ui(bs, pic_param.CurrPic.TopFieldOrderCnt, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 + 4);
431 /* pic_order_present_flag == 0 */
437 /* redundant_pic_cnt_present_flag == 0 */
439 if (IS_P_SLICE(slice_param.slice_type)) {
440 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
442 if (slice_param.num_ref_idx_active_override_flag)
443 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
445 /* ref_pic_list_reordering */
446 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
447 } else if (IS_B_SLICE(slice_param.slice_type)) {
448 bitstream_put_ui(bs, slice_param.direct_spatial_mv_pred_flag, 1); /* direct_spatial_mv_pred: 1 */
450 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
452 if (slice_param.num_ref_idx_active_override_flag) {
453 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
454 bitstream_put_ue(bs, slice_param.num_ref_idx_l1_active_minus1);
457 /* ref_pic_list_reordering */
458 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
459 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l1: 0 */
462 if ((pic_param.pic_fields.bits.weighted_pred_flag &&
463 IS_P_SLICE(slice_param.slice_type)) ||
464 ((pic_param.pic_fields.bits.weighted_bipred_idc == 1) &&
465 IS_B_SLICE(slice_param.slice_type))) {
466 /* FIXME: fill weight/offset table */
470 /* dec_ref_pic_marking */
471 if (pic_param.pic_fields.bits.reference_pic_flag) { /* nal_ref_idc != 0 */
472 unsigned char no_output_of_prior_pics_flag = 0;
473 unsigned char long_term_reference_flag = 0;
474 unsigned char adaptive_ref_pic_marking_mode_flag = 0;
476 if (pic_param.pic_fields.bits.idr_pic_flag) {
477 bitstream_put_ui(bs, no_output_of_prior_pics_flag, 1); /* no_output_of_prior_pics_flag: 0 */
478 bitstream_put_ui(bs, long_term_reference_flag, 1); /* long_term_reference_flag: 0 */
480 bitstream_put_ui(bs, adaptive_ref_pic_marking_mode_flag, 1); /* adaptive_ref_pic_marking_mode_flag: 0 */
484 if (pic_param.pic_fields.bits.entropy_coding_mode_flag &&
485 !IS_I_SLICE(slice_param.slice_type))
486 bitstream_put_ue(bs, slice_param.cabac_init_idc); /* cabac_init_idc: 0 */
488 bitstream_put_se(bs, slice_param.slice_qp_delta); /* slice_qp_delta: 0 */
490 /* ignore for SP/SI */
492 if (pic_param.pic_fields.bits.deblocking_filter_control_present_flag) {
493 bitstream_put_ue(bs, slice_param.disable_deblocking_filter_idc); /* disable_deblocking_filter_idc: 0 */
495 if (slice_param.disable_deblocking_filter_idc != 1) {
496 bitstream_put_se(bs, slice_param.slice_alpha_c0_offset_div2); /* slice_alpha_c0_offset_div2: 2 */
497 bitstream_put_se(bs, slice_param.slice_beta_offset_div2); /* slice_beta_offset_div2: 2 */
501 if (pic_param.pic_fields.bits.entropy_coding_mode_flag) {
502 bitstream_byte_aligning(bs, 1);
507 build_packed_pic_buffer(unsigned char **header_buffer)
511 bitstream_start(&bs);
512 nal_start_code_prefix(&bs);
513 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_PPS);
517 *header_buffer = (unsigned char *)bs.buffer;
518 return bs.bit_offset;
522 build_packed_seq_buffer(unsigned char **header_buffer)
526 bitstream_start(&bs);
527 nal_start_code_prefix(&bs);
528 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_SPS);
532 *header_buffer = (unsigned char *)bs.buffer;
533 return bs.bit_offset;
536 static int build_packed_slice_buffer(unsigned char **header_buffer)
539 int is_idr = !!pic_param.pic_fields.bits.idr_pic_flag;
540 int is_ref = !!pic_param.pic_fields.bits.reference_pic_flag;
542 bitstream_start(&bs);
543 nal_start_code_prefix(&bs);
545 if (IS_I_SLICE(slice_param.slice_type)) {
546 nal_header(&bs, NAL_REF_IDC_HIGH, is_idr ? NAL_IDR : NAL_NON_IDR);
547 } else if (IS_P_SLICE(slice_param.slice_type)) {
548 nal_header(&bs, NAL_REF_IDC_MEDIUM, NAL_NON_IDR);
550 assert(IS_B_SLICE(slice_param.slice_type));
551 nal_header(&bs, is_ref ? NAL_REF_IDC_LOW : NAL_REF_IDC_NONE, NAL_NON_IDR);
557 *header_buffer = (unsigned char *)bs.buffer;
558 return bs.bit_offset;
563 Assume frame sequence is: Frame#0, #1, #2, ..., #M, ..., #X, ... (encoding order)
564 1) period between Frame #X and Frame #N = #X - #N
565 2) 0 means infinite for intra_period/intra_idr_period, and 0 is invalid for ip_period
566 3) intra_idr_period % intra_period (intra_period > 0) and intra_period % ip_period must be 0
567 4) intra_period and intra_idr_period take precedence over ip_period
568 5) if ip_period > 1, intra_period and intra_idr_period are not the strict periods
569 of I/IDR frames, see bellow examples
570 -------------------------------------------------------------------
571 intra_period intra_idr_period ip_period frame sequence (intra_period/intra_idr_period/ip_period)
572 0 ignored 1 IDRPPPPPPP ... (No IDR/I any more)
573 0 ignored >=2 IDR(PBB)(PBB)... (No IDR/I any more)
574 1 0 ignored IDRIIIIIII... (No IDR any more)
575 1 1 ignored IDR IDR IDR IDR...
576 1 >=2 ignored IDRII IDRII IDR... (1/3/ignore)
577 >=2 0 1 IDRPPP IPPP I... (3/0/1)
578 >=2 0 >=2 IDR(PBB)(PBB)(IBB) (6/0/3)
579 (PBB)(IBB)(PBB)(IBB)...
580 >=2 >=2 1 IDRPPPPP IPPPPP IPPPPP (6/18/1)
581 IDRPPPPP IPPPPP IPPPPP...
582 >=2 >=2 >=2 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)} (6/18/3)
583 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)}...
584 {IDR(PBB)(PBB)(IBB)(PBB)} (6/12/3)
585 {IDR(PBB)(PBB)(IBB)(PBB)}...
586 {IDR(PBB)(PBB)} (6/6/3)
590 // General pts/dts strategy:
592 // Getting pts and dts right with variable frame rate (VFR) and B-frames can be a
593 // bit tricky. We assume first of all that the frame rate never goes _above_
594 // <frame_rate>, which gives us a frame period N. The decoder can always decode
595 // in at least this speed, as long at dts <= pts (the frame is not attempted
596 // presented before it is decoded). Furthermore, we never have longer chains of
597 // B-frames than a fixed constant C. (In a B-frame chain, we say that the base
598 // I/P-frame has order O=0, the B-frame depending on it directly has order O=1,
599 // etc. The last frame in the chain, which no B-frames depend on, is the “tip”
600 // frame, with an order O <= C.)
602 // Many strategies are possible, but we establish these rules:
604 // - Tip frames have dts = pts - (C-O)*N.
605 // - Non-tip frames have dts = dts_last + N.
607 // An example, with C=2 and N=10 and the data flow showed with arrows:
610 // pts: 30 40 50 60 70 80
612 // dts: 10 30 20 60 50←40
617 // To show that this works fine also with irregular spacings, let's say that
618 // the third frame is delayed a bit (something earlier was dropped). Now the
619 // situation looks like this:
622 // pts: 30 40 80 90 100 110
624 // dts: 10 30 20 90 50←40
629 // The resetting on every tip frame makes sure dts never ends up lagging a lot
630 // behind pts, and the subtraction of (C-O)*N makes sure pts <= dts.
632 // In the output of this function, if <dts_lag> is >= 0, it means to reset the
633 // dts from the current pts minus <dts_lag>, while if it's -1, the frame is not
634 // a tip frame and should be given a dts based on the previous one.
639 void encoding2display_order(
640 unsigned long long encoding_order, int intra_period,
641 int intra_idr_period, int ip_period,
642 unsigned long long *displaying_order,
643 int *frame_type, int *pts_lag)
645 int encoding_order_gop = 0;
649 if (intra_period == 1) { /* all are I/IDR frames */
650 *displaying_order = encoding_order;
651 if (intra_idr_period == 0)
652 *frame_type = (encoding_order == 0)?FRAME_IDR:FRAME_I;
654 *frame_type = (encoding_order % intra_idr_period == 0)?FRAME_IDR:FRAME_I;
658 if (intra_period == 0)
659 intra_idr_period = 0;
661 if (ip_period == 1) {
662 // No B-frames, sequence is like IDR PPPPP IPPPPP.
663 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % intra_idr_period);
664 *displaying_order = encoding_order;
666 if (encoding_order_gop == 0) { /* the first frame */
667 *frame_type = FRAME_IDR;
668 } else if (intra_period != 0 && /* have I frames */
669 encoding_order_gop >= 2 &&
670 (encoding_order_gop % intra_period == 0)) {
671 *frame_type = FRAME_I;
673 *frame_type = FRAME_P;
678 // We have B-frames. Sequence is like IDR (PBB)(PBB)(IBB)(PBB).
679 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % (intra_idr_period + 1));
680 *pts_lag = -1; // Most frames are not tip frames.
682 if (encoding_order_gop == 0) { /* the first frame */
683 *frame_type = FRAME_IDR;
684 *displaying_order = encoding_order;
685 // IDR frames are a special case; I honestly can't find the logic behind
686 // why this is the right thing, but it seems to line up nicely in practice :-)
687 *pts_lag = TIMEBASE / frame_rate;
688 } else if (((encoding_order_gop - 1) % ip_period) != 0) { /* B frames */
689 *frame_type = FRAME_B;
690 *displaying_order = encoding_order - 1;
691 if ((encoding_order_gop % ip_period) == 0) {
692 *pts_lag = 0; // Last B-frame.
694 } else if (intra_period != 0 && /* have I frames */
695 encoding_order_gop >= 2 &&
696 ((encoding_order_gop - 1) / ip_period % (intra_period / ip_period)) == 0) {
697 *frame_type = FRAME_I;
698 *displaying_order = encoding_order + ip_period - 1;
700 *frame_type = FRAME_P;
701 *displaying_order = encoding_order + ip_period - 1;
706 static const char *rc_to_string(int rcmode)
719 case VA_RC_VBR_CONSTRAINED:
720 return "VBR_CONSTRAINED";
727 static int process_cmdline(int argc, char *argv[])
730 const struct option long_opts[] = {
731 {"help", no_argument, NULL, 0 },
732 {"bitrate", required_argument, NULL, 1 },
733 {"minqp", required_argument, NULL, 2 },
734 {"initialqp", required_argument, NULL, 3 },
735 {"intra_period", required_argument, NULL, 4 },
736 {"idr_period", required_argument, NULL, 5 },
737 {"ip_period", required_argument, NULL, 6 },
738 {"rcmode", required_argument, NULL, 7 },
739 {"srcyuv", required_argument, NULL, 9 },
740 {"recyuv", required_argument, NULL, 10 },
741 {"fourcc", required_argument, NULL, 11 },
742 {"syncmode", no_argument, NULL, 12 },
743 {"enablePSNR", no_argument, NULL, 13 },
744 {"prit", required_argument, NULL, 14 },
745 {"priv", required_argument, NULL, 15 },
746 {"framecount", required_argument, NULL, 16 },
747 {"entropy", required_argument, NULL, 17 },
748 {"profile", required_argument, NULL, 18 },
749 {NULL, no_argument, NULL, 0 }};
752 while ((c =getopt_long_only(argc, argv, "w:h:n:f:o:?", long_opts, &long_index)) != EOF) {
755 frame_width = atoi(optarg);
758 frame_height = atoi(optarg);
762 frame_rate = atoi(optarg);
765 coded_fn = strdup(optarg);
771 frame_bitrate = atoi(optarg);
774 minimal_qp = atoi(optarg);
777 initial_qp = atoi(optarg);
780 intra_period = atoi(optarg);
783 intra_idr_period = atoi(optarg);
786 ip_period = atoi(optarg);
789 rc_mode = string_to_rc(optarg);
796 srcyuv_fn = strdup(optarg);
799 srcyuv_fourcc = string_to_fourcc(optarg);
800 if (srcyuv_fourcc <= 0) {
809 misc_priv_type = strtol(optarg, NULL, 0);
812 misc_priv_value = strtol(optarg, NULL, 0);
815 h264_entropy_mode = atoi(optarg) ? 1: 0;
818 if (strncmp(optarg, "BP", 2) == 0)
819 h264_profile = VAProfileH264Baseline;
820 else if (strncmp(optarg, "MP", 2) == 0)
821 h264_profile = VAProfileH264Main;
822 else if (strncmp(optarg, "HP", 2) == 0)
823 h264_profile = VAProfileH264High;
825 h264_profile = (VAProfile)0;
835 printf(" ip_period must be greater than 0\n");
838 if (intra_period != 1 && intra_period % ip_period != 0) {
839 printf(" intra_period must be a multiplier of ip_period\n");
842 if (intra_period != 0 && intra_idr_period % intra_period != 0) {
843 printf(" intra_idr_period must be a multiplier of intra_period\n");
847 if (frame_bitrate == 0)
848 frame_bitrate = frame_width * frame_height * 12 * frame_rate / 50;
850 if (coded_fn == NULL) {
852 if (stat("/tmp", &buf) == 0)
853 coded_fn = strdup("/tmp/test.264");
854 else if (stat("/sdcard", &buf) == 0)
855 coded_fn = strdup("/sdcard/test.264");
857 coded_fn = strdup("./test.264");
861 frame_width_mbaligned = (frame_width + 15) & (~15);
862 frame_height_mbaligned = (frame_height + 15) & (~15);
863 if (frame_width != frame_width_mbaligned ||
864 frame_height != frame_height_mbaligned) {
865 printf("Source frame is %dx%d and will code clip to %dx%d with crop\n",
866 frame_width, frame_height,
867 frame_width_mbaligned, frame_height_mbaligned
875 static Display *x11_display;
876 static Window x11_window;
879 va_open_display(void)
881 x11_display = XOpenDisplay(NULL);
883 fprintf(stderr, "error: can't connect to X server!\n");
886 return vaGetDisplay(x11_display);
890 va_close_display(VADisplay va_dpy)
896 XUnmapWindow(x11_display, x11_window);
897 XDestroyWindow(x11_display, x11_window);
900 XCloseDisplay(x11_display);
904 static int init_va(void)
906 VAProfile profile_list[]={VAProfileH264High, VAProfileH264Main, VAProfileH264Baseline, VAProfileH264ConstrainedBaseline};
907 VAEntrypoint *entrypoints;
908 int num_entrypoints, slice_entrypoint;
909 int support_encode = 0;
910 int major_ver, minor_ver;
914 va_dpy = va_open_display();
915 va_status = vaInitialize(va_dpy, &major_ver, &minor_ver);
916 CHECK_VASTATUS(va_status, "vaInitialize");
918 num_entrypoints = vaMaxNumEntrypoints(va_dpy);
919 entrypoints = (VAEntrypoint *)malloc(num_entrypoints * sizeof(*entrypoints));
921 fprintf(stderr, "error: failed to initialize VA entrypoints array\n");
925 /* use the highest profile */
926 for (i = 0; i < sizeof(profile_list)/sizeof(profile_list[0]); i++) {
927 if ((h264_profile != ~0) && h264_profile != profile_list[i])
930 h264_profile = profile_list[i];
931 vaQueryConfigEntrypoints(va_dpy, h264_profile, entrypoints, &num_entrypoints);
932 for (slice_entrypoint = 0; slice_entrypoint < num_entrypoints; slice_entrypoint++) {
933 if (entrypoints[slice_entrypoint] == VAEntrypointEncSlice) {
938 if (support_encode == 1)
942 if (support_encode == 0) {
943 printf("Can't find VAEntrypointEncSlice for H264 profiles\n");
946 switch (h264_profile) {
947 case VAProfileH264Baseline:
948 printf("Use profile VAProfileH264Baseline\n");
950 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
951 h264_entropy_mode = 0;
953 case VAProfileH264ConstrainedBaseline:
954 printf("Use profile VAProfileH264ConstrainedBaseline\n");
955 constraint_set_flag |= (1 << 0 | 1 << 1); /* Annex A.2.2 */
959 case VAProfileH264Main:
960 printf("Use profile VAProfileH264Main\n");
961 constraint_set_flag |= (1 << 1); /* Annex A.2.2 */
964 case VAProfileH264High:
965 constraint_set_flag |= (1 << 3); /* Annex A.2.4 */
966 printf("Use profile VAProfileH264High\n");
969 printf("unknow profile. Set to Baseline");
970 h264_profile = VAProfileH264Baseline;
972 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
977 VAConfigAttrib attrib[VAConfigAttribTypeMax];
979 /* find out the format for the render target, and rate control mode */
980 for (i = 0; i < VAConfigAttribTypeMax; i++)
981 attrib[i].type = (VAConfigAttribType)i;
983 va_status = vaGetConfigAttributes(va_dpy, h264_profile, VAEntrypointEncSlice,
984 &attrib[0], VAConfigAttribTypeMax);
985 CHECK_VASTATUS(va_status, "vaGetConfigAttributes");
986 /* check the interested configattrib */
987 if ((attrib[VAConfigAttribRTFormat].value & VA_RT_FORMAT_YUV420) == 0) {
988 printf("Not find desired YUV420 RT format\n");
991 config_attrib[config_attrib_num].type = VAConfigAttribRTFormat;
992 config_attrib[config_attrib_num].value = VA_RT_FORMAT_YUV420;
996 if (attrib[VAConfigAttribRateControl].value != VA_ATTRIB_NOT_SUPPORTED) {
997 int tmp = attrib[VAConfigAttribRateControl].value;
999 printf("Support rate control mode (0x%x):", tmp);
1001 if (tmp & VA_RC_NONE)
1003 if (tmp & VA_RC_CBR)
1005 if (tmp & VA_RC_VBR)
1007 if (tmp & VA_RC_VCM)
1009 if (tmp & VA_RC_CQP)
1011 if (tmp & VA_RC_VBR_CONSTRAINED)
1012 printf("VBR_CONSTRAINED ");
1016 if (rc_mode == -1 || !(rc_mode & tmp)) {
1017 if (rc_mode != -1) {
1018 printf("Warning: Don't support the specified RateControl mode: %s!!!, switch to ", rc_to_string(rc_mode));
1021 for (i = 0; i < sizeof(rc_default_modes) / sizeof(rc_default_modes[0]); i++) {
1022 if (rc_default_modes[i] & tmp) {
1023 rc_mode = rc_default_modes[i];
1028 printf("RateControl mode: %s\n", rc_to_string(rc_mode));
1031 config_attrib[config_attrib_num].type = VAConfigAttribRateControl;
1032 config_attrib[config_attrib_num].value = rc_mode;
1033 config_attrib_num++;
1037 if (attrib[VAConfigAttribEncPackedHeaders].value != VA_ATTRIB_NOT_SUPPORTED) {
1038 int tmp = attrib[VAConfigAttribEncPackedHeaders].value;
1040 printf("Support VAConfigAttribEncPackedHeaders\n");
1042 h264_packedheader = 1;
1043 config_attrib[config_attrib_num].type = VAConfigAttribEncPackedHeaders;
1044 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
1046 if (tmp & VA_ENC_PACKED_HEADER_SEQUENCE) {
1047 printf("Support packed sequence headers\n");
1048 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SEQUENCE;
1051 if (tmp & VA_ENC_PACKED_HEADER_PICTURE) {
1052 printf("Support packed picture headers\n");
1053 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_PICTURE;
1056 if (tmp & VA_ENC_PACKED_HEADER_SLICE) {
1057 printf("Support packed slice headers\n");
1058 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SLICE;
1061 if (tmp & VA_ENC_PACKED_HEADER_MISC) {
1062 printf("Support packed misc headers\n");
1063 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_MISC;
1066 enc_packed_header_idx = config_attrib_num;
1067 config_attrib_num++;
1070 if (attrib[VAConfigAttribEncInterlaced].value != VA_ATTRIB_NOT_SUPPORTED) {
1071 int tmp = attrib[VAConfigAttribEncInterlaced].value;
1073 printf("Support VAConfigAttribEncInterlaced\n");
1075 if (tmp & VA_ENC_INTERLACED_FRAME)
1076 printf("support VA_ENC_INTERLACED_FRAME\n");
1077 if (tmp & VA_ENC_INTERLACED_FIELD)
1078 printf("Support VA_ENC_INTERLACED_FIELD\n");
1079 if (tmp & VA_ENC_INTERLACED_MBAFF)
1080 printf("Support VA_ENC_INTERLACED_MBAFF\n");
1081 if (tmp & VA_ENC_INTERLACED_PAFF)
1082 printf("Support VA_ENC_INTERLACED_PAFF\n");
1084 config_attrib[config_attrib_num].type = VAConfigAttribEncInterlaced;
1085 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
1086 config_attrib_num++;
1089 if (attrib[VAConfigAttribEncMaxRefFrames].value != VA_ATTRIB_NOT_SUPPORTED) {
1090 h264_maxref = attrib[VAConfigAttribEncMaxRefFrames].value;
1092 printf("Support %d RefPicList0 and %d RefPicList1\n",
1093 h264_maxref & 0xffff, (h264_maxref >> 16) & 0xffff );
1096 if (attrib[VAConfigAttribEncMaxSlices].value != VA_ATTRIB_NOT_SUPPORTED)
1097 printf("Support %d slices\n", attrib[VAConfigAttribEncMaxSlices].value);
1099 if (attrib[VAConfigAttribEncSliceStructure].value != VA_ATTRIB_NOT_SUPPORTED) {
1100 int tmp = attrib[VAConfigAttribEncSliceStructure].value;
1102 printf("Support VAConfigAttribEncSliceStructure\n");
1104 if (tmp & VA_ENC_SLICE_STRUCTURE_ARBITRARY_ROWS)
1105 printf("Support VA_ENC_SLICE_STRUCTURE_ARBITRARY_ROWS\n");
1106 if (tmp & VA_ENC_SLICE_STRUCTURE_POWER_OF_TWO_ROWS)
1107 printf("Support VA_ENC_SLICE_STRUCTURE_POWER_OF_TWO_ROWS\n");
1108 if (tmp & VA_ENC_SLICE_STRUCTURE_ARBITRARY_MACROBLOCKS)
1109 printf("Support VA_ENC_SLICE_STRUCTURE_ARBITRARY_MACROBLOCKS\n");
1111 if (attrib[VAConfigAttribEncMacroblockInfo].value != VA_ATTRIB_NOT_SUPPORTED) {
1112 printf("Support VAConfigAttribEncMacroblockInfo\n");
1119 static int setup_encode()
1122 VASurfaceID *tmp_surfaceid;
1123 int codedbuf_size, i;
1124 static VASurfaceID src_surface[SURFACE_NUM];
1125 static VASurfaceID ref_surface[SURFACE_NUM];
1127 va_status = vaCreateConfig(va_dpy, h264_profile, VAEntrypointEncSlice,
1128 &config_attrib[0], config_attrib_num, &config_id);
1129 CHECK_VASTATUS(va_status, "vaCreateConfig");
1131 /* create source surfaces */
1132 va_status = vaCreateSurfaces(va_dpy,
1133 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
1134 &src_surface[0], SURFACE_NUM,
1136 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
1138 /* create reference surfaces */
1139 va_status = vaCreateSurfaces(va_dpy,
1140 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
1141 &ref_surface[0], SURFACE_NUM,
1143 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
1145 tmp_surfaceid = (VASurfaceID *)calloc(2 * SURFACE_NUM, sizeof(VASurfaceID));
1146 memcpy(tmp_surfaceid, src_surface, SURFACE_NUM * sizeof(VASurfaceID));
1147 memcpy(tmp_surfaceid + SURFACE_NUM, ref_surface, SURFACE_NUM * sizeof(VASurfaceID));
1149 /* Create a context for this encode pipe */
1150 va_status = vaCreateContext(va_dpy, config_id,
1151 frame_width_mbaligned, frame_height_mbaligned,
1153 tmp_surfaceid, 2 * SURFACE_NUM,
1155 CHECK_VASTATUS(va_status, "vaCreateContext");
1156 free(tmp_surfaceid);
1158 codedbuf_size = (frame_width_mbaligned * frame_height_mbaligned * 400) / (16*16);
1160 for (i = 0; i < SURFACE_NUM; i++) {
1161 /* create coded buffer once for all
1162 * other VA buffers which won't be used again after vaRenderPicture.
1163 * so APP can always vaCreateBuffer for every frame
1164 * but coded buffer need to be mapped and accessed after vaRenderPicture/vaEndPicture
1165 * so VA won't maintain the coded buffer
1167 va_status = vaCreateBuffer(va_dpy, context_id, VAEncCodedBufferType,
1168 codedbuf_size, 1, NULL, &gl_surfaces[i].coded_buf);
1169 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1172 /* create OpenGL objects */
1173 //glGenFramebuffers(SURFACE_NUM, fbos);
1175 for (i = 0; i < SURFACE_NUM; i++) {
1176 glGenTextures(1, &gl_surfaces[i].y_tex);
1177 glGenTextures(1, &gl_surfaces[i].cbcr_tex);
1180 for (i = 0; i < SURFACE_NUM; i++) {
1181 gl_surfaces[i].src_surface = src_surface[i];
1182 gl_surfaces[i].ref_surface = ref_surface[i];
1190 #define partition(ref, field, key, ascending) \
1193 while (ref[i].field < key) \
1195 while (ref[j].field > key) \
1198 while (ref[i].field > key) \
1200 while (ref[j].field < key) \
1212 static void sort_one(VAPictureH264 ref[], int left, int right,
1213 int ascending, int frame_idx)
1215 int i = left, j = right;
1220 key = ref[(left + right) / 2].frame_idx;
1221 partition(ref, frame_idx, key, ascending);
1223 key = ref[(left + right) / 2].TopFieldOrderCnt;
1224 partition(ref, TopFieldOrderCnt, (signed int)key, ascending);
1229 sort_one(ref, left, j, ascending, frame_idx);
1232 sort_one(ref, i, right, ascending, frame_idx);
1235 static void sort_two(VAPictureH264 ref[], int left, int right, unsigned int key, unsigned int frame_idx,
1236 int partition_ascending, int list0_ascending, int list1_ascending)
1238 int i = left, j = right;
1242 partition(ref, frame_idx, key, partition_ascending);
1244 partition(ref, TopFieldOrderCnt, (signed int)key, partition_ascending);
1248 sort_one(ref, left, i-1, list0_ascending, frame_idx);
1249 sort_one(ref, j+1, right, list1_ascending, frame_idx);
1252 static int update_ReferenceFrames(void)
1256 if (current_frame_type == FRAME_B)
1259 CurrentCurrPic.flags = VA_PICTURE_H264_SHORT_TERM_REFERENCE;
1261 if (numShortTerm > num_ref_frames)
1262 numShortTerm = num_ref_frames;
1263 for (i=numShortTerm-1; i>0; i--)
1264 ReferenceFrames[i] = ReferenceFrames[i-1];
1265 ReferenceFrames[0] = CurrentCurrPic;
1267 if (current_frame_type != FRAME_B)
1268 current_frame_num++;
1269 if (current_frame_num > MaxFrameNum)
1270 current_frame_num = 0;
1276 static int update_RefPicList(void)
1278 unsigned int current_poc = CurrentCurrPic.TopFieldOrderCnt;
1280 if (current_frame_type == FRAME_P) {
1281 memcpy(RefPicList0_P, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1282 sort_one(RefPicList0_P, 0, numShortTerm-1, 0, 1);
1285 if (current_frame_type == FRAME_B) {
1286 memcpy(RefPicList0_B, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1287 sort_two(RefPicList0_B, 0, numShortTerm-1, current_poc, 0,
1290 memcpy(RefPicList1_B, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1291 sort_two(RefPicList1_B, 0, numShortTerm-1, current_poc, 0,
1299 static int render_sequence(void)
1301 VABufferID seq_param_buf, rc_param_buf, misc_param_tmpbuf, render_id[2];
1303 VAEncMiscParameterBuffer *misc_param, *misc_param_tmp;
1304 VAEncMiscParameterRateControl *misc_rate_ctrl;
1306 seq_param.level_idc = 41 /*SH_LEVEL_3*/;
1307 seq_param.picture_width_in_mbs = frame_width_mbaligned / 16;
1308 seq_param.picture_height_in_mbs = frame_height_mbaligned / 16;
1309 seq_param.bits_per_second = frame_bitrate;
1311 seq_param.intra_period = intra_period;
1312 seq_param.intra_idr_period = intra_idr_period;
1313 seq_param.ip_period = ip_period;
1315 seq_param.max_num_ref_frames = num_ref_frames;
1316 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1317 seq_param.time_scale = TIMEBASE * 2;
1318 seq_param.num_units_in_tick = 1; /* Tc = num_units_in_tick / scale */
1319 seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 = Log2MaxPicOrderCntLsb - 4;
1320 seq_param.seq_fields.bits.log2_max_frame_num_minus4 = Log2MaxFrameNum - 4;;
1321 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1322 seq_param.seq_fields.bits.chroma_format_idc = 1;
1323 seq_param.seq_fields.bits.direct_8x8_inference_flag = 1;
1325 if (frame_width != frame_width_mbaligned ||
1326 frame_height != frame_height_mbaligned) {
1327 seq_param.frame_cropping_flag = 1;
1328 seq_param.frame_crop_left_offset = 0;
1329 seq_param.frame_crop_right_offset = (frame_width_mbaligned - frame_width)/2;
1330 seq_param.frame_crop_top_offset = 0;
1331 seq_param.frame_crop_bottom_offset = (frame_height_mbaligned - frame_height)/2;
1334 va_status = vaCreateBuffer(va_dpy, context_id,
1335 VAEncSequenceParameterBufferType,
1336 sizeof(seq_param), 1, &seq_param, &seq_param_buf);
1337 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1339 va_status = vaCreateBuffer(va_dpy, context_id,
1340 VAEncMiscParameterBufferType,
1341 sizeof(VAEncMiscParameterBuffer) + sizeof(VAEncMiscParameterRateControl),
1342 1, NULL, &rc_param_buf);
1343 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1345 vaMapBuffer(va_dpy, rc_param_buf, (void **)&misc_param);
1346 misc_param->type = VAEncMiscParameterTypeRateControl;
1347 misc_rate_ctrl = (VAEncMiscParameterRateControl *)misc_param->data;
1348 memset(misc_rate_ctrl, 0, sizeof(*misc_rate_ctrl));
1349 misc_rate_ctrl->bits_per_second = frame_bitrate;
1350 misc_rate_ctrl->target_percentage = 66;
1351 misc_rate_ctrl->window_size = 1000;
1352 misc_rate_ctrl->initial_qp = initial_qp;
1353 misc_rate_ctrl->min_qp = minimal_qp;
1354 misc_rate_ctrl->basic_unit_size = 0;
1355 vaUnmapBuffer(va_dpy, rc_param_buf);
1357 render_id[0] = seq_param_buf;
1358 render_id[1] = rc_param_buf;
1360 va_status = vaRenderPicture(va_dpy, context_id, &render_id[0], 2);
1361 CHECK_VASTATUS(va_status, "vaRenderPicture");;
1363 if (misc_priv_type != 0) {
1364 va_status = vaCreateBuffer(va_dpy, context_id,
1365 VAEncMiscParameterBufferType,
1366 sizeof(VAEncMiscParameterBuffer),
1367 1, NULL, &misc_param_tmpbuf);
1368 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1369 vaMapBuffer(va_dpy, misc_param_tmpbuf, (void **)&misc_param_tmp);
1370 misc_param_tmp->type = (VAEncMiscParameterType)misc_priv_type;
1371 misc_param_tmp->data[0] = misc_priv_value;
1372 vaUnmapBuffer(va_dpy, misc_param_tmpbuf);
1374 va_status = vaRenderPicture(va_dpy, context_id, &misc_param_tmpbuf, 1);
1380 static int calc_poc(int pic_order_cnt_lsb)
1382 static int PicOrderCntMsb_ref = 0, pic_order_cnt_lsb_ref = 0;
1383 int prevPicOrderCntMsb, prevPicOrderCntLsb;
1384 int PicOrderCntMsb, TopFieldOrderCnt;
1386 if (current_frame_type == FRAME_IDR)
1387 prevPicOrderCntMsb = prevPicOrderCntLsb = 0;
1389 prevPicOrderCntMsb = PicOrderCntMsb_ref;
1390 prevPicOrderCntLsb = pic_order_cnt_lsb_ref;
1393 if ((pic_order_cnt_lsb < prevPicOrderCntLsb) &&
1394 ((prevPicOrderCntLsb - pic_order_cnt_lsb) >= (int)(MaxPicOrderCntLsb / 2)))
1395 PicOrderCntMsb = prevPicOrderCntMsb + MaxPicOrderCntLsb;
1396 else if ((pic_order_cnt_lsb > prevPicOrderCntLsb) &&
1397 ((pic_order_cnt_lsb - prevPicOrderCntLsb) > (int)(MaxPicOrderCntLsb / 2)))
1398 PicOrderCntMsb = prevPicOrderCntMsb - MaxPicOrderCntLsb;
1400 PicOrderCntMsb = prevPicOrderCntMsb;
1402 TopFieldOrderCnt = PicOrderCntMsb + pic_order_cnt_lsb;
1404 if (current_frame_type != FRAME_B) {
1405 PicOrderCntMsb_ref = PicOrderCntMsb;
1406 pic_order_cnt_lsb_ref = pic_order_cnt_lsb;
1409 return TopFieldOrderCnt;
1412 static int render_picture(void)
1414 VABufferID pic_param_buf;
1418 pic_param.CurrPic.picture_id = gl_surfaces[current_frame_display % SURFACE_NUM].ref_surface;
1419 pic_param.CurrPic.frame_idx = current_frame_num;
1420 pic_param.CurrPic.flags = 0;
1421 pic_param.CurrPic.TopFieldOrderCnt = calc_poc((current_frame_display - current_IDR_display) % MaxPicOrderCntLsb);
1422 pic_param.CurrPic.BottomFieldOrderCnt = pic_param.CurrPic.TopFieldOrderCnt;
1423 CurrentCurrPic = pic_param.CurrPic;
1425 if (getenv("TO_DEL")) { /* set RefPicList into ReferenceFrames */
1426 update_RefPicList(); /* calc RefPicList */
1427 memset(pic_param.ReferenceFrames, 0xff, 16 * sizeof(VAPictureH264)); /* invalid all */
1428 if (current_frame_type == FRAME_P) {
1429 pic_param.ReferenceFrames[0] = RefPicList0_P[0];
1430 } else if (current_frame_type == FRAME_B) {
1431 pic_param.ReferenceFrames[0] = RefPicList0_B[0];
1432 pic_param.ReferenceFrames[1] = RefPicList1_B[0];
1435 memcpy(pic_param.ReferenceFrames, ReferenceFrames, numShortTerm*sizeof(VAPictureH264));
1436 for (i = numShortTerm; i < SURFACE_NUM; i++) {
1437 pic_param.ReferenceFrames[i].picture_id = VA_INVALID_SURFACE;
1438 pic_param.ReferenceFrames[i].flags = VA_PICTURE_H264_INVALID;
1442 pic_param.pic_fields.bits.idr_pic_flag = (current_frame_type == FRAME_IDR);
1443 pic_param.pic_fields.bits.reference_pic_flag = (current_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[current_frame_display % 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 va_status = vaRenderPicture(va_dpy, context_id, &pic_param_buf, 1);
1456 CHECK_VASTATUS(va_status, "vaRenderPicture");
1461 static int render_packedsequence(void)
1463 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1464 VABufferID packedseq_para_bufid, packedseq_data_bufid, render_id[2];
1465 unsigned int length_in_bits;
1466 unsigned char *packedseq_buffer = NULL;
1469 length_in_bits = build_packed_seq_buffer(&packedseq_buffer);
1471 packedheader_param_buffer.type = VAEncPackedHeaderSequence;
1473 packedheader_param_buffer.bit_length = length_in_bits; /*length_in_bits*/
1474 packedheader_param_buffer.has_emulation_bytes = 0;
1475 va_status = vaCreateBuffer(va_dpy,
1477 VAEncPackedHeaderParameterBufferType,
1478 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1479 &packedseq_para_bufid);
1480 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1482 va_status = vaCreateBuffer(va_dpy,
1484 VAEncPackedHeaderDataBufferType,
1485 (length_in_bits + 7) / 8, 1, packedseq_buffer,
1486 &packedseq_data_bufid);
1487 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1489 render_id[0] = packedseq_para_bufid;
1490 render_id[1] = packedseq_data_bufid;
1491 va_status = vaRenderPicture(va_dpy, context_id, render_id, 2);
1492 CHECK_VASTATUS(va_status, "vaRenderPicture");
1494 free(packedseq_buffer);
1500 static int render_packedpicture(void)
1502 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1503 VABufferID packedpic_para_bufid, packedpic_data_bufid, render_id[2];
1504 unsigned int length_in_bits;
1505 unsigned char *packedpic_buffer = NULL;
1508 length_in_bits = build_packed_pic_buffer(&packedpic_buffer);
1509 packedheader_param_buffer.type = VAEncPackedHeaderPicture;
1510 packedheader_param_buffer.bit_length = length_in_bits;
1511 packedheader_param_buffer.has_emulation_bytes = 0;
1513 va_status = vaCreateBuffer(va_dpy,
1515 VAEncPackedHeaderParameterBufferType,
1516 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1517 &packedpic_para_bufid);
1518 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1520 va_status = vaCreateBuffer(va_dpy,
1522 VAEncPackedHeaderDataBufferType,
1523 (length_in_bits + 7) / 8, 1, packedpic_buffer,
1524 &packedpic_data_bufid);
1525 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1527 render_id[0] = packedpic_para_bufid;
1528 render_id[1] = packedpic_data_bufid;
1529 va_status = vaRenderPicture(va_dpy, context_id, render_id, 2);
1530 CHECK_VASTATUS(va_status, "vaRenderPicture");
1532 free(packedpic_buffer);
1537 static void render_packedslice()
1539 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1540 VABufferID packedslice_para_bufid, packedslice_data_bufid, render_id[2];
1541 unsigned int length_in_bits;
1542 unsigned char *packedslice_buffer = NULL;
1545 length_in_bits = build_packed_slice_buffer(&packedslice_buffer);
1546 packedheader_param_buffer.type = VAEncPackedHeaderSlice;
1547 packedheader_param_buffer.bit_length = length_in_bits;
1548 packedheader_param_buffer.has_emulation_bytes = 0;
1550 va_status = vaCreateBuffer(va_dpy,
1552 VAEncPackedHeaderParameterBufferType,
1553 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1554 &packedslice_para_bufid);
1555 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1557 va_status = vaCreateBuffer(va_dpy,
1559 VAEncPackedHeaderDataBufferType,
1560 (length_in_bits + 7) / 8, 1, packedslice_buffer,
1561 &packedslice_data_bufid);
1562 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1564 render_id[0] = packedslice_para_bufid;
1565 render_id[1] = packedslice_data_bufid;
1566 va_status = vaRenderPicture(va_dpy, context_id, render_id, 2);
1567 CHECK_VASTATUS(va_status, "vaRenderPicture");
1569 free(packedslice_buffer);
1572 static int render_slice(void)
1574 VABufferID slice_param_buf;
1578 update_RefPicList();
1580 /* one frame, one slice */
1581 slice_param.macroblock_address = 0;
1582 slice_param.num_macroblocks = frame_width_mbaligned * frame_height_mbaligned/(16*16); /* Measured by MB */
1583 slice_param.slice_type = (current_frame_type == FRAME_IDR)?2:current_frame_type;
1584 if (current_frame_type == FRAME_IDR) {
1585 if (current_frame_encoding != 0)
1586 ++slice_param.idr_pic_id;
1587 } else if (current_frame_type == FRAME_P) {
1588 int refpiclist0_max = h264_maxref & 0xffff;
1589 memcpy(slice_param.RefPicList0, RefPicList0_P, refpiclist0_max*sizeof(VAPictureH264));
1591 for (i = refpiclist0_max; i < 32; i++) {
1592 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1593 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1595 } else if (current_frame_type == FRAME_B) {
1596 int refpiclist0_max = h264_maxref & 0xffff;
1597 int refpiclist1_max = (h264_maxref >> 16) & 0xffff;
1599 memcpy(slice_param.RefPicList0, RefPicList0_B, refpiclist0_max*sizeof(VAPictureH264));
1600 for (i = refpiclist0_max; i < 32; i++) {
1601 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1602 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1605 memcpy(slice_param.RefPicList1, RefPicList1_B, refpiclist1_max*sizeof(VAPictureH264));
1606 for (i = refpiclist1_max; i < 32; i++) {
1607 slice_param.RefPicList1[i].picture_id = VA_INVALID_SURFACE;
1608 slice_param.RefPicList1[i].flags = VA_PICTURE_H264_INVALID;
1612 slice_param.slice_alpha_c0_offset_div2 = 0;
1613 slice_param.slice_beta_offset_div2 = 0;
1614 slice_param.direct_spatial_mv_pred_flag = 1;
1615 slice_param.pic_order_cnt_lsb = (current_frame_display - current_IDR_display) % MaxPicOrderCntLsb;
1618 if (h264_packedheader &&
1619 config_attrib[enc_packed_header_idx].value & VA_ENC_PACKED_HEADER_SLICE)
1620 render_packedslice();
1622 va_status = vaCreateBuffer(va_dpy, context_id, VAEncSliceParameterBufferType,
1623 sizeof(slice_param), 1, &slice_param, &slice_param_buf);
1624 CHECK_VASTATUS(va_status, "vaCreateBuffer");;
1626 va_status = vaRenderPicture(va_dpy, context_id, &slice_param_buf, 1);
1627 CHECK_VASTATUS(va_status, "vaRenderPicture");
1634 int H264Encoder::save_codeddata(storage_task task)
1636 VACodedBufferSegment *buf_list = NULL;
1638 unsigned int coded_size = 0;
1642 const int64_t global_delay = (ip_period - 1) * (TIMEBASE / frame_rate); // So we never get negative dts.
1644 va_status = vaMapBuffer(va_dpy, gl_surfaces[task.display_order % SURFACE_NUM].coded_buf, (void **)(&buf_list));
1645 CHECK_VASTATUS(va_status, "vaMapBuffer");
1646 while (buf_list != NULL) {
1647 data.append(reinterpret_cast<const char *>(buf_list->buf), buf_list->size);
1648 buf_list = (VACodedBufferSegment *) buf_list->next;
1650 frame_size += coded_size;
1652 vaUnmapBuffer(va_dpy, gl_surfaces[task.display_order % SURFACE_NUM].coded_buf);
1657 memset(&pkt, 0, sizeof(pkt));
1659 pkt.data = reinterpret_cast<uint8_t *>(&data[0]);
1660 pkt.size = data.size();
1661 pkt.stream_index = 0;
1662 if (task.frame_type == FRAME_IDR || task.frame_type == FRAME_I) {
1663 pkt.flags = AV_PKT_FLAG_KEY;
1668 httpd->add_packet(pkt, task.pts + global_delay, task.dts + global_delay);
1670 // Encode and add all audio frames up to and including the pts of this video frame.
1671 // (They can never be queued to us after the video frame they belong to, only before.)
1674 std::vector<float> audio;
1676 unique_lock<mutex> lock(frame_queue_mutex);
1677 if (pending_audio_frames.empty()) break;
1678 auto it = pending_audio_frames.begin();
1679 if (it->first > task.pts) break;
1680 audio_pts = it->first;
1681 audio = move(it->second);
1682 pending_audio_frames.erase(it);
1685 AVFrame *frame = avcodec_alloc_frame();
1686 frame->nb_samples = audio.size() / 2;
1687 frame->format = AV_SAMPLE_FMT_FLT;
1688 frame->channel_layout = AV_CH_LAYOUT_STEREO;
1690 unique_ptr<float[]> planar_samples(new float[audio.size()]);
1691 avcodec_fill_audio_frame(frame, 2, AV_SAMPLE_FMT_FLTP, (const uint8_t*)planar_samples.get(), audio.size() * sizeof(float), 0);
1692 for (int i = 0; i < frame->nb_samples; ++i) {
1693 planar_samples[i] = audio[i * 2 + 0];
1694 planar_samples[i + frame->nb_samples] = audio[i * 2 + 1];
1698 av_init_packet(&pkt);
1702 avcodec_encode_audio2(context_audio, &pkt, frame, &got_output);
1704 pkt.stream_index = 1;
1705 httpd->add_packet(pkt, audio_pts + global_delay, audio_pts + global_delay);
1707 // TODO: Delayed frames.
1708 avcodec_free_frame(&frame);
1712 printf("\r "); /* return back to startpoint */
1713 switch (encode_order % 4) {
1727 printf("%08lld", encode_order);
1728 printf("(%06d bytes coded)", coded_size);
1735 // this is weird. but it seems to put a new frame onto the queue
1736 void H264Encoder::storage_task_enqueue(storage_task task)
1738 std::unique_lock<std::mutex> lock(storage_task_queue_mutex);
1739 storage_task_queue.push(move(task));
1740 srcsurface_status[task.display_order % SURFACE_NUM] = SRC_SURFACE_IN_ENCODING;
1741 storage_task_queue_changed.notify_all();
1744 void H264Encoder::storage_task_thread()
1747 storage_task current;
1749 // wait until there's an encoded frame
1750 std::unique_lock<std::mutex> lock(storage_task_queue_mutex);
1751 storage_task_queue_changed.wait(lock, [this]{ return storage_thread_should_quit || !storage_task_queue.empty(); });
1752 if (storage_thread_should_quit) return;
1753 current = move(storage_task_queue.front());
1754 storage_task_queue.pop();
1759 // waits for data, then saves it to disk.
1760 va_status = vaSyncSurface(va_dpy, gl_surfaces[current.display_order % SURFACE_NUM].src_surface);
1761 CHECK_VASTATUS(va_status, "vaSyncSurface");
1762 save_codeddata(move(current));
1765 std::unique_lock<std::mutex> lock(storage_task_queue_mutex);
1766 srcsurface_status[current.display_order % SURFACE_NUM] = SRC_SURFACE_FREE;
1767 storage_task_queue_changed.notify_all();
1772 static int release_encode()
1776 for (i = 0; i < SURFACE_NUM; i++) {
1777 vaDestroyBuffer(va_dpy, gl_surfaces[i].coded_buf);
1778 vaDestroySurfaces(va_dpy, &gl_surfaces[i].src_surface, 1);
1779 vaDestroySurfaces(va_dpy, &gl_surfaces[i].ref_surface, 1);
1782 vaDestroyContext(va_dpy, context_id);
1783 vaDestroyConfig(va_dpy, config_id);
1788 static int deinit_va()
1790 vaTerminate(va_dpy);
1792 va_close_display(va_dpy);
1798 static int print_input()
1800 printf("\n\nINPUT:Try to encode H264...\n");
1802 printf("INPUT: RateControl : %s\n", rc_to_string(rc_mode));
1803 printf("INPUT: Resolution : %dx%dframes\n", frame_width, frame_height);
1804 printf("INPUT: FrameRate : %d\n", frame_rate);
1805 printf("INPUT: Bitrate : %d\n", frame_bitrate);
1806 printf("INPUT: Slieces : %d\n", frame_slices);
1807 printf("INPUT: IntraPeriod : %d\n", intra_period);
1808 printf("INPUT: IDRPeriod : %d\n", intra_idr_period);
1809 printf("INPUT: IpPeriod : %d\n", ip_period);
1810 printf("INPUT: Initial QP : %d\n", initial_qp);
1811 printf("INPUT: Min QP : %d\n", minimal_qp);
1812 printf("INPUT: Coded Clip : %s\n", coded_fn);
1814 printf("\n\n"); /* return back to startpoint */
1819 H264Encoder::H264Encoder(QSurface *surface, int width, int height, HTTPD *httpd)
1820 : current_storage_frame(0), surface(surface), httpd(httpd)
1822 AVCodec *codec_audio = avcodec_find_encoder(AV_CODEC_ID_MP3);
1823 context_audio = avcodec_alloc_context3(codec_audio);
1824 context_audio->bit_rate = 256000;
1825 context_audio->sample_rate = 48000;
1826 context_audio->sample_fmt = AV_SAMPLE_FMT_FLTP;
1827 context_audio->channels = 2;
1828 context_audio->channel_layout = AV_CH_LAYOUT_STEREO;
1829 context_audio->time_base = AVRational{1, TIMEBASE};
1830 if (avcodec_open2(context_audio, codec_audio, NULL) < 0) {
1831 fprintf(stderr, "Could not open codec\n");
1835 frame_width = width;
1836 frame_height = height;
1837 frame_width_mbaligned = (frame_width + 15) & (~15);
1838 frame_height_mbaligned = (frame_height + 15) & (~15);
1839 frame_bitrate = 15000000; // / 60;
1840 current_frame_encoding = 0;
1847 // No frames are ready yet.
1848 memset(srcsurface_status, SRC_SURFACE_FREE, sizeof(srcsurface_status));
1850 memset(&seq_param, 0, sizeof(seq_param));
1851 memset(&pic_param, 0, sizeof(pic_param));
1852 memset(&slice_param, 0, sizeof(slice_param));
1854 storage_thread = std::thread(&H264Encoder::storage_task_thread, this);
1856 copy_thread = std::thread([this]{
1857 //SDL_GL_MakeCurrent(window, context);
1858 QOpenGLContext *context = create_context();
1859 eglBindAPI(EGL_OPENGL_API);
1860 if (!make_current(context, this->surface)) {
1861 printf("display=%p surface=%p context=%p curr=%p err=%d\n", eglGetCurrentDisplay(), this->surface, context, eglGetCurrentContext(),
1869 H264Encoder::~H264Encoder()
1872 unique_lock<mutex> lock(storage_task_queue_mutex);
1873 storage_thread_should_quit = true;
1874 storage_task_queue_changed.notify_all();
1877 unique_lock<mutex> lock(frame_queue_mutex);
1878 copy_thread_should_quit = true;
1879 frame_queue_nonempty.notify_one();
1881 storage_thread.join();
1888 bool H264Encoder::begin_frame(GLuint *y_tex, GLuint *cbcr_tex)
1891 // Wait until this frame slot is done encoding.
1892 std::unique_lock<std::mutex> lock(storage_task_queue_mutex);
1893 storage_task_queue_changed.wait(lock, [this]{ return storage_thread_should_quit || (srcsurface_status[current_storage_frame % SURFACE_NUM] == SRC_SURFACE_FREE); });
1894 if (storage_thread_should_quit) return false;
1897 //*fbo = fbos[current_storage_frame % SURFACE_NUM];
1898 GLSurface *surf = &gl_surfaces[current_storage_frame % SURFACE_NUM];
1899 *y_tex = surf->y_tex;
1900 *cbcr_tex = surf->cbcr_tex;
1902 VASurfaceID surface = surf->src_surface;
1903 VAStatus va_status = vaDeriveImage(va_dpy, surface, &surf->surface_image);
1904 CHECK_VASTATUS(va_status, "vaDeriveImage");
1906 VABufferInfo buf_info;
1907 buf_info.mem_type = VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME; // or VA_SURFACE_ATTRIB_MEM_TYPE_KERNEL_DRM?
1908 va_status = vaAcquireBufferHandle(va_dpy, surf->surface_image.buf, &buf_info);
1909 CHECK_VASTATUS(va_status, "vaAcquireBufferHandle");
1912 surf->y_egl_image = EGL_NO_IMAGE_KHR;
1913 EGLint y_attribs[] = {
1914 EGL_WIDTH, frame_width,
1915 EGL_HEIGHT, frame_height,
1916 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('R', '8', ' ', ' '),
1917 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
1918 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[0]),
1919 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[0]),
1923 surf->y_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, y_attribs);
1924 assert(surf->y_egl_image != EGL_NO_IMAGE_KHR);
1926 // Associate Y image to a texture.
1927 glBindTexture(GL_TEXTURE_2D, *y_tex);
1928 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->y_egl_image);
1930 // Create CbCr image.
1931 surf->cbcr_egl_image = EGL_NO_IMAGE_KHR;
1932 EGLint cbcr_attribs[] = {
1933 EGL_WIDTH, frame_width,
1934 EGL_HEIGHT, frame_height,
1935 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('G', 'R', '8', '8'),
1936 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
1937 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[1]),
1938 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[1]),
1942 surf->cbcr_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, cbcr_attribs);
1943 assert(surf->cbcr_egl_image != EGL_NO_IMAGE_KHR);
1945 // Associate CbCr image to a texture.
1946 glBindTexture(GL_TEXTURE_2D, *cbcr_tex);
1947 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->cbcr_egl_image);
1952 void H264Encoder::add_audio(int64_t pts, std::vector<float> audio)
1955 unique_lock<mutex> lock(frame_queue_mutex);
1956 pending_audio_frames[pts] = move(audio);
1958 frame_queue_nonempty.notify_one();
1962 void H264Encoder::end_frame(RefCountedGLsync fence, int64_t pts, const std::vector<RefCountedFrame> &input_frames)
1965 unique_lock<mutex> lock(frame_queue_mutex);
1966 pending_video_frames[current_storage_frame] = PendingFrame{ fence, input_frames, pts };
1967 ++current_storage_frame;
1969 frame_queue_nonempty.notify_one();
1972 void H264Encoder::copy_thread_func()
1974 int64_t last_dts = -1;
1978 encoding2display_order(current_frame_encoding, intra_period, intra_idr_period, ip_period,
1979 ¤t_frame_display, ¤t_frame_type, &pts_lag);
1980 if (current_frame_type == FRAME_IDR) {
1982 current_frame_num = 0;
1983 current_IDR_display = current_frame_display;
1987 unique_lock<mutex> lock(frame_queue_mutex);
1988 frame_queue_nonempty.wait(lock, [this]{ return copy_thread_should_quit || pending_video_frames.count(current_frame_display) != 0; });
1989 if (copy_thread_should_quit) return;
1990 frame = move(pending_video_frames[current_frame_display]);
1991 pending_video_frames.erase(current_frame_display);
1994 // Wait for the GPU to be done with the frame.
1995 glClientWaitSync(frame.fence.get(), 0, 0);
1997 // Release back any input frames we needed to render this frame.
1998 frame.input_frames.clear();
2001 GLSurface *surf = &gl_surfaces[current_frame_display % SURFACE_NUM];
2002 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->y_egl_image);
2003 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->cbcr_egl_image);
2004 VAStatus va_status = vaReleaseBufferHandle(va_dpy, surf->surface_image.buf);
2005 CHECK_VASTATUS(va_status, "vaReleaseBufferHandle");
2006 va_status = vaDestroyImage(va_dpy, surf->surface_image.image_id);
2007 CHECK_VASTATUS(va_status, "vaDestroyImage");
2009 VASurfaceID surface = surf->src_surface;
2011 // Schedule the frame for encoding.
2012 va_status = vaBeginPicture(va_dpy, context_id, surface);
2013 CHECK_VASTATUS(va_status, "vaBeginPicture");
2015 if (current_frame_type == FRAME_IDR) {
2018 if (h264_packedheader) {
2019 render_packedsequence();
2020 render_packedpicture();
2023 //render_sequence();
2028 va_status = vaEndPicture(va_dpy, context_id);
2029 CHECK_VASTATUS(va_status, "vaEndPicture");
2031 // Determine the pts and dts of this frame.
2032 int64_t pts = frame.pts;
2034 if (pts_lag == -1) {
2035 assert(last_dts != -1);
2036 dts = last_dts + (TIMEBASE / frame_rate);
2038 dts = pts - pts_lag;
2042 // so now the data is done encoding (well, async job kicked off)...
2043 // we send that to the storage thread
2045 tmp.display_order = current_frame_display;
2046 tmp.frame_type = current_frame_type;
2049 storage_task_enqueue(move(tmp));
2051 update_ReferenceFrames();
2052 ++current_frame_encoding;