2 #include "h264encode.h"
4 #include <movit/util.h>
5 #include <EGL/eglplatform.h>
11 #include <libavcodec/avcodec.h>
12 #include <libavformat/avformat.h>
13 #include <libavresample/avresample.h>
14 #include <libavutil/channel_layout.h>
15 #include <libavutil/frame.h>
16 #include <libavutil/rational.h>
17 #include <libavutil/samplefmt.h>
18 #include <libavutil/opt.h>
20 #include <libdrm/drm_fourcc.h>
26 #include <va/va_drm.h>
27 #include <va/va_drmcommon.h>
28 #include <va/va_enc_h264.h>
29 #include <va/va_x11.h>
31 #include <condition_variable>
47 #include "x264encode.h"
54 #define CHECK_VASTATUS(va_status, func) \
55 if (va_status != VA_STATUS_SUCCESS) { \
56 fprintf(stderr, "%s:%d (%s) failed with %d\n", __func__, __LINE__, func, va_status); \
60 #define BUFFER_OFFSET(i) ((char *)NULL + (i))
62 //#include "loadsurface.h"
64 #define NAL_REF_IDC_NONE 0
65 #define NAL_REF_IDC_LOW 1
66 #define NAL_REF_IDC_MEDIUM 2
67 #define NAL_REF_IDC_HIGH 3
75 #define SLICE_TYPE_P 0
76 #define SLICE_TYPE_B 1
77 #define SLICE_TYPE_I 2
78 #define IS_P_SLICE(type) (SLICE_TYPE_P == (type))
79 #define IS_B_SLICE(type) (SLICE_TYPE_B == (type))
80 #define IS_I_SLICE(type) (SLICE_TYPE_I == (type))
83 #define ENTROPY_MODE_CAVLC 0
84 #define ENTROPY_MODE_CABAC 1
86 #define PROFILE_IDC_BASELINE 66
87 #define PROFILE_IDC_MAIN 77
88 #define PROFILE_IDC_HIGH 100
90 #define BITSTREAM_ALLOCATE_STEPPING 4096
91 #define SURFACE_NUM 16 /* 16 surfaces for source YUV */
92 #define MAX_NUM_REF1 16 // Seemingly a hardware-fixed value, not related to SURFACE_NUM
93 #define MAX_NUM_REF2 32 // Seemingly a hardware-fixed value, not related to SURFACE_NUM
95 static constexpr unsigned int MaxFrameNum = (2<<16);
96 static constexpr unsigned int MaxPicOrderCntLsb = (2<<8);
97 static constexpr unsigned int Log2MaxFrameNum = 16;
98 static constexpr unsigned int Log2MaxPicOrderCntLsb = 8;
99 static constexpr int rc_default_modes[] = { // Priority list of modes.
102 VA_RC_VBR_CONSTRAINED,
108 /* thread to save coded data */
109 #define SRC_SURFACE_FREE 0
110 #define SRC_SURFACE_IN_ENCODING 1
113 unsigned int *buffer;
115 int max_size_in_dword;
117 typedef struct __bitstream bitstream;
121 // H.264 video comes out in encoding order (e.g. with two B-frames:
122 // 0, 3, 1, 2, 6, 4, 5, etc.), but uncompressed video needs to
123 // come in the right order. Since we do everything, including waiting
124 // for the frames to come out of OpenGL, in encoding order, we need
125 // a reordering buffer for uncompressed frames so that they come out
126 // correctly. We go the super-lazy way of not making it understand
127 // anything about the true order (which introduces some extra latency,
128 // though); we know that for N B-frames we need at most (N-1) frames
129 // in the reorder buffer, and can just sort on that.
131 // The class also deals with keeping a freelist as needed.
132 class FrameReorderer {
134 FrameReorderer(unsigned queue_length, int width, int height);
136 // Returns the next frame to insert with its pts, if any. Otherwise -1 and nullptr.
137 // Does _not_ take ownership of data; a copy is taken if needed.
138 // The returned pointer is valid until the next call to reorder_frame, or destruction.
139 // As a special case, if queue_length == 0, will just return pts and data (no reordering needed).
140 pair<int64_t, const uint8_t *> reorder_frame(int64_t pts, const uint8_t *data);
142 // The same as reorder_frame, but without inserting anything. Used to empty the queue.
143 pair<int64_t, const uint8_t *> get_first_frame();
145 bool empty() const { return frames.empty(); }
148 unsigned queue_length;
151 priority_queue<pair<int64_t, uint8_t *>> frames;
152 stack<uint8_t *> freelist; // Includes the last value returned from reorder_frame.
154 // Owns all the pointers. Normally, freelist and frames could do this themselves,
155 // except priority_queue doesn't work well with movable-only types.
156 vector<unique_ptr<uint8_t[]>> owner;
159 FrameReorderer::FrameReorderer(unsigned queue_length, int width, int height)
160 : queue_length(queue_length), width(width), height(height)
162 for (unsigned i = 0; i < queue_length; ++i) {
163 owner.emplace_back(new uint8_t[width * height * 2]);
164 freelist.push(owner.back().get());
168 pair<int64_t, const uint8_t *> FrameReorderer::reorder_frame(int64_t pts, const uint8_t *data)
170 if (queue_length == 0) {
171 return make_pair(pts, data);
174 assert(!freelist.empty());
175 uint8_t *storage = freelist.top();
177 memcpy(storage, data, width * height * 2);
178 frames.emplace(-pts, storage); // Invert pts to get smallest first.
180 if (frames.size() >= queue_length) {
181 return get_first_frame();
183 return make_pair(-1, nullptr);
187 pair<int64_t, const uint8_t *> FrameReorderer::get_first_frame()
189 assert(!frames.empty());
190 pair<int64_t, uint8_t *> storage = frames.top();
192 int64_t pts = storage.first;
193 freelist.push(storage.second);
194 return make_pair(-pts, storage.second); // Re-invert pts (see reorder_frame()).
197 class H264EncoderImpl : public KeyFrameSignalReceiver {
199 H264EncoderImpl(QSurface *surface, const string &va_display, int width, int height, HTTPD *httpd);
201 void add_audio(int64_t pts, vector<float> audio);
202 bool begin_frame(GLuint *y_tex, GLuint *cbcr_tex);
203 RefCountedGLsync end_frame(int64_t pts, const vector<RefCountedFrame> &input_frames);
205 void open_output_file(const std::string &filename);
206 void close_output_file();
208 virtual void signal_keyframe() override {
209 stream_mux_writing_keyframes = true;
213 struct storage_task {
214 unsigned long long display_order;
219 struct PendingFrame {
220 RefCountedGLsync fence;
221 vector<RefCountedFrame> input_frames;
225 // So we never get negative dts.
226 int64_t global_delay() const {
227 return int64_t(ip_period - 1) * (TIMEBASE / MAX_FPS);
230 void encode_thread_func();
231 void encode_remaining_frames_as_p(int encoding_frame_num, int gop_start_display_frame_num, int64_t last_dts);
232 void add_packet_for_uncompressed_frame(int64_t pts, const uint8_t *data);
233 void encode_frame(PendingFrame frame, int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num,
234 int frame_type, int64_t pts, int64_t dts);
235 void storage_task_thread();
236 void encode_audio(const vector<float> &audio,
237 vector<float> *audio_queue,
240 AVAudioResampleContext *resampler,
241 const vector<Mux *> &muxes);
242 void encode_audio_one_frame(const float *audio,
243 size_t num_samples, // In each channel.
246 AVAudioResampleContext *resampler,
247 const vector<Mux *> &muxes);
248 void encode_last_audio(vector<float> *audio_queue,
251 AVAudioResampleContext *resampler,
252 const vector<Mux *> &muxes);
253 void encode_remaining_audio();
254 void storage_task_enqueue(storage_task task);
255 void save_codeddata(storage_task task);
256 int render_packedsequence();
257 int render_packedpicture();
258 void render_packedslice();
259 int render_sequence();
260 int render_picture(int frame_type, int display_frame_num, int gop_start_display_frame_num);
261 void sps_rbsp(bitstream *bs);
262 void pps_rbsp(bitstream *bs);
263 int build_packed_pic_buffer(unsigned char **header_buffer);
264 int render_slice(int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num, int frame_type);
265 void slice_header(bitstream *bs);
266 int build_packed_seq_buffer(unsigned char **header_buffer);
267 int build_packed_slice_buffer(unsigned char **header_buffer);
268 int init_va(const string &va_display);
270 void enable_zerocopy_if_possible();
271 VADisplay va_open_display(const string &va_display);
272 void va_close_display(VADisplay va_dpy);
274 int release_encode();
275 void update_ReferenceFrames(int frame_type);
276 int update_RefPicList(int frame_type);
277 void open_output_stream();
278 void close_output_stream();
279 static int write_packet_thunk(void *opaque, uint8_t *buf, int buf_size);
280 int write_packet(uint8_t *buf, int buf_size);
282 bool is_shutdown = false;
286 thread encode_thread, storage_thread;
288 mutex storage_task_queue_mutex;
289 condition_variable storage_task_queue_changed;
290 int srcsurface_status[SURFACE_NUM]; // protected by storage_task_queue_mutex
291 queue<storage_task> storage_task_queue; // protected by storage_task_queue_mutex
292 bool storage_thread_should_quit = false; // protected by storage_task_queue_mutex
294 mutex frame_queue_mutex;
295 condition_variable frame_queue_nonempty;
296 bool encode_thread_should_quit = false; // under frame_queue_mutex
298 int current_storage_frame;
300 map<int, PendingFrame> pending_video_frames; // under frame_queue_mutex
301 map<int64_t, vector<float>> pending_audio_frames; // under frame_queue_mutex
302 int64_t last_audio_pts = 0; // The first pts after all audio we've encoded.
305 AVCodecContext *context_audio_file;
306 AVCodecContext *context_audio_stream = nullptr; // nullptr = don't code separate audio for stream.
308 AVAudioResampleContext *resampler_audio_file = nullptr;
309 AVAudioResampleContext *resampler_audio_stream = nullptr;
311 vector<float> audio_queue_file;
312 vector<float> audio_queue_stream;
314 unique_ptr<Mux> stream_mux; // To HTTP.
315 unique_ptr<Mux> file_mux; // To local disk.
317 // While Mux object is constructing, <stream_mux_writing_header> is true,
318 // and the header is being collected into stream_mux_header.
319 bool stream_mux_writing_header;
320 string stream_mux_header;
322 bool stream_mux_writing_keyframes = false;
324 AVFrame *audio_frame = nullptr;
326 unique_ptr<FrameReorderer> reorderer;
327 unique_ptr<X264Encoder> x264_encoder; // nullptr if not using x264.
329 Display *x11_display = nullptr;
331 // Encoder parameters
333 VAProfile h264_profile = (VAProfile)~0;
334 VAConfigAttrib config_attrib[VAConfigAttribTypeMax];
335 int config_attrib_num = 0, enc_packed_header_idx;
338 VASurfaceID src_surface, ref_surface;
339 VABufferID coded_buf;
341 VAImage surface_image;
342 GLuint y_tex, cbcr_tex;
344 // Only if use_zerocopy == true.
345 EGLImage y_egl_image, cbcr_egl_image;
347 // Only if use_zerocopy == false.
349 uint8_t *y_ptr, *cbcr_ptr;
350 size_t y_offset, cbcr_offset;
352 GLSurface gl_surfaces[SURFACE_NUM];
354 VAConfigID config_id;
355 VAContextID context_id;
356 VAEncSequenceParameterBufferH264 seq_param;
357 VAEncPictureParameterBufferH264 pic_param;
358 VAEncSliceParameterBufferH264 slice_param;
359 VAPictureH264 CurrentCurrPic;
360 VAPictureH264 ReferenceFrames[MAX_NUM_REF1], RefPicList0_P[MAX_NUM_REF2], RefPicList0_B[MAX_NUM_REF2], RefPicList1_B[MAX_NUM_REF2];
362 // Static quality settings.
363 static constexpr unsigned int frame_bitrate = 15000000 / 60; // Doesn't really matter; only initial_qp does.
364 static constexpr unsigned int num_ref_frames = 2;
365 static constexpr int initial_qp = 15;
366 static constexpr int minimal_qp = 0;
367 static constexpr int intra_period = 30;
368 static constexpr int intra_idr_period = MAX_FPS; // About a second; more at lower frame rates. Not ideal.
370 // Quality settings that are meant to be static, but might be overridden
372 int constraint_set_flag = 0;
373 int h264_packedheader = 0; /* support pack header? */
374 int h264_maxref = (1<<16|1);
375 int h264_entropy_mode = 1; /* cabac */
379 unsigned int current_frame_num = 0;
380 unsigned int numShortTerm = 0;
384 int frame_width_mbaligned;
385 int frame_height_mbaligned;
388 // Supposedly vaRenderPicture() is supposed to destroy the buffer implicitly,
389 // but if we don't delete it here, we get leaks. The GStreamer implementation
391 static void render_picture_and_delete(VADisplay dpy, VAContextID context, VABufferID *buffers, int num_buffers)
393 VAStatus va_status = vaRenderPicture(dpy, context, buffers, num_buffers);
394 CHECK_VASTATUS(va_status, "vaRenderPicture");
396 for (int i = 0; i < num_buffers; ++i) {
397 va_status = vaDestroyBuffer(dpy, buffers[i]);
398 CHECK_VASTATUS(va_status, "vaDestroyBuffer");
403 va_swap32(unsigned int val)
405 unsigned char *pval = (unsigned char *)&val;
407 return ((pval[0] << 24) |
414 bitstream_start(bitstream *bs)
416 bs->max_size_in_dword = BITSTREAM_ALLOCATE_STEPPING;
417 bs->buffer = (unsigned int *)calloc(bs->max_size_in_dword * sizeof(int), 1);
422 bitstream_end(bitstream *bs)
424 int pos = (bs->bit_offset >> 5);
425 int bit_offset = (bs->bit_offset & 0x1f);
426 int bit_left = 32 - bit_offset;
429 bs->buffer[pos] = va_swap32((bs->buffer[pos] << bit_left));
434 bitstream_put_ui(bitstream *bs, unsigned int val, int size_in_bits)
436 int pos = (bs->bit_offset >> 5);
437 int bit_offset = (bs->bit_offset & 0x1f);
438 int bit_left = 32 - bit_offset;
443 bs->bit_offset += size_in_bits;
445 if (bit_left > size_in_bits) {
446 bs->buffer[pos] = (bs->buffer[pos] << size_in_bits | val);
448 size_in_bits -= bit_left;
449 if (bit_left >= 32) {
450 bs->buffer[pos] = (val >> size_in_bits);
452 bs->buffer[pos] = (bs->buffer[pos] << bit_left) | (val >> size_in_bits);
454 bs->buffer[pos] = va_swap32(bs->buffer[pos]);
456 if (pos + 1 == bs->max_size_in_dword) {
457 bs->max_size_in_dword += BITSTREAM_ALLOCATE_STEPPING;
458 bs->buffer = (unsigned int *)realloc(bs->buffer, bs->max_size_in_dword * sizeof(unsigned int));
461 bs->buffer[pos + 1] = val;
466 bitstream_put_ue(bitstream *bs, unsigned int val)
468 int size_in_bits = 0;
476 bitstream_put_ui(bs, 0, size_in_bits - 1); // leading zero
477 bitstream_put_ui(bs, val, size_in_bits);
481 bitstream_put_se(bitstream *bs, int val)
483 unsigned int new_val;
488 new_val = 2 * val - 1;
490 bitstream_put_ue(bs, new_val);
494 bitstream_byte_aligning(bitstream *bs, int bit)
496 int bit_offset = (bs->bit_offset & 0x7);
497 int bit_left = 8 - bit_offset;
503 assert(bit == 0 || bit == 1);
506 new_val = (1 << bit_left) - 1;
510 bitstream_put_ui(bs, new_val, bit_left);
514 rbsp_trailing_bits(bitstream *bs)
516 bitstream_put_ui(bs, 1, 1);
517 bitstream_byte_aligning(bs, 0);
520 static void nal_start_code_prefix(bitstream *bs)
522 bitstream_put_ui(bs, 0x00000001, 32);
525 static void nal_header(bitstream *bs, int nal_ref_idc, int nal_unit_type)
527 bitstream_put_ui(bs, 0, 1); /* forbidden_zero_bit: 0 */
528 bitstream_put_ui(bs, nal_ref_idc, 2);
529 bitstream_put_ui(bs, nal_unit_type, 5);
532 void H264EncoderImpl::sps_rbsp(bitstream *bs)
534 int profile_idc = PROFILE_IDC_BASELINE;
536 if (h264_profile == VAProfileH264High)
537 profile_idc = PROFILE_IDC_HIGH;
538 else if (h264_profile == VAProfileH264Main)
539 profile_idc = PROFILE_IDC_MAIN;
541 bitstream_put_ui(bs, profile_idc, 8); /* profile_idc */
542 bitstream_put_ui(bs, !!(constraint_set_flag & 1), 1); /* constraint_set0_flag */
543 bitstream_put_ui(bs, !!(constraint_set_flag & 2), 1); /* constraint_set1_flag */
544 bitstream_put_ui(bs, !!(constraint_set_flag & 4), 1); /* constraint_set2_flag */
545 bitstream_put_ui(bs, !!(constraint_set_flag & 8), 1); /* constraint_set3_flag */
546 bitstream_put_ui(bs, 0, 4); /* reserved_zero_4bits */
547 bitstream_put_ui(bs, seq_param.level_idc, 8); /* level_idc */
548 bitstream_put_ue(bs, seq_param.seq_parameter_set_id); /* seq_parameter_set_id */
550 if ( profile_idc == PROFILE_IDC_HIGH) {
551 bitstream_put_ue(bs, 1); /* chroma_format_idc = 1, 4:2:0 */
552 bitstream_put_ue(bs, 0); /* bit_depth_luma_minus8 */
553 bitstream_put_ue(bs, 0); /* bit_depth_chroma_minus8 */
554 bitstream_put_ui(bs, 0, 1); /* qpprime_y_zero_transform_bypass_flag */
555 bitstream_put_ui(bs, 0, 1); /* seq_scaling_matrix_present_flag */
558 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_frame_num_minus4); /* log2_max_frame_num_minus4 */
559 bitstream_put_ue(bs, seq_param.seq_fields.bits.pic_order_cnt_type); /* pic_order_cnt_type */
561 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0)
562 bitstream_put_ue(bs, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4); /* log2_max_pic_order_cnt_lsb_minus4 */
567 bitstream_put_ue(bs, seq_param.max_num_ref_frames); /* num_ref_frames */
568 bitstream_put_ui(bs, 0, 1); /* gaps_in_frame_num_value_allowed_flag */
570 bitstream_put_ue(bs, seq_param.picture_width_in_mbs - 1); /* pic_width_in_mbs_minus1 */
571 bitstream_put_ue(bs, seq_param.picture_height_in_mbs - 1); /* pic_height_in_map_units_minus1 */
572 bitstream_put_ui(bs, seq_param.seq_fields.bits.frame_mbs_only_flag, 1); /* frame_mbs_only_flag */
574 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
578 bitstream_put_ui(bs, seq_param.seq_fields.bits.direct_8x8_inference_flag, 1); /* direct_8x8_inference_flag */
579 bitstream_put_ui(bs, seq_param.frame_cropping_flag, 1); /* frame_cropping_flag */
581 if (seq_param.frame_cropping_flag) {
582 bitstream_put_ue(bs, seq_param.frame_crop_left_offset); /* frame_crop_left_offset */
583 bitstream_put_ue(bs, seq_param.frame_crop_right_offset); /* frame_crop_right_offset */
584 bitstream_put_ue(bs, seq_param.frame_crop_top_offset); /* frame_crop_top_offset */
585 bitstream_put_ue(bs, seq_param.frame_crop_bottom_offset); /* frame_crop_bottom_offset */
588 //if ( frame_bit_rate < 0 ) { //TODO EW: the vui header isn't correct
590 bitstream_put_ui(bs, 0, 1); /* vui_parameters_present_flag */
592 bitstream_put_ui(bs, 1, 1); /* vui_parameters_present_flag */
593 bitstream_put_ui(bs, 0, 1); /* aspect_ratio_info_present_flag */
594 bitstream_put_ui(bs, 0, 1); /* overscan_info_present_flag */
595 bitstream_put_ui(bs, 1, 1); /* video_signal_type_present_flag */
597 bitstream_put_ui(bs, 5, 3); /* video_format (5 = Unspecified) */
598 bitstream_put_ui(bs, 0, 1); /* video_full_range_flag */
599 bitstream_put_ui(bs, 1, 1); /* colour_description_present_flag */
601 bitstream_put_ui(bs, 1, 8); /* colour_primaries (1 = BT.709) */
602 bitstream_put_ui(bs, 2, 8); /* transfer_characteristics (2 = unspecified, since we use sRGB) */
603 bitstream_put_ui(bs, 6, 8); /* matrix_coefficients (6 = BT.601/SMPTE 170M) */
606 bitstream_put_ui(bs, 0, 1); /* chroma_loc_info_present_flag */
607 bitstream_put_ui(bs, 1, 1); /* timing_info_present_flag */
609 bitstream_put_ui(bs, 1, 32); // FPS
610 bitstream_put_ui(bs, TIMEBASE * 2, 32); // FPS
611 bitstream_put_ui(bs, 1, 1);
613 bitstream_put_ui(bs, 1, 1); /* nal_hrd_parameters_present_flag */
616 bitstream_put_ue(bs, 0); /* cpb_cnt_minus1 */
617 bitstream_put_ui(bs, 4, 4); /* bit_rate_scale */
618 bitstream_put_ui(bs, 6, 4); /* cpb_size_scale */
620 bitstream_put_ue(bs, frame_bitrate - 1); /* bit_rate_value_minus1[0] */
621 bitstream_put_ue(bs, frame_bitrate*8 - 1); /* cpb_size_value_minus1[0] */
622 bitstream_put_ui(bs, 1, 1); /* cbr_flag[0] */
624 bitstream_put_ui(bs, 23, 5); /* initial_cpb_removal_delay_length_minus1 */
625 bitstream_put_ui(bs, 23, 5); /* cpb_removal_delay_length_minus1 */
626 bitstream_put_ui(bs, 23, 5); /* dpb_output_delay_length_minus1 */
627 bitstream_put_ui(bs, 23, 5); /* time_offset_length */
629 bitstream_put_ui(bs, 0, 1); /* vcl_hrd_parameters_present_flag */
630 bitstream_put_ui(bs, 0, 1); /* low_delay_hrd_flag */
632 bitstream_put_ui(bs, 0, 1); /* pic_struct_present_flag */
633 bitstream_put_ui(bs, 0, 1); /* bitstream_restriction_flag */
636 rbsp_trailing_bits(bs); /* rbsp_trailing_bits */
640 void H264EncoderImpl::pps_rbsp(bitstream *bs)
642 bitstream_put_ue(bs, pic_param.pic_parameter_set_id); /* pic_parameter_set_id */
643 bitstream_put_ue(bs, pic_param.seq_parameter_set_id); /* seq_parameter_set_id */
645 bitstream_put_ui(bs, pic_param.pic_fields.bits.entropy_coding_mode_flag, 1); /* entropy_coding_mode_flag */
647 bitstream_put_ui(bs, 0, 1); /* pic_order_present_flag: 0 */
649 bitstream_put_ue(bs, 0); /* num_slice_groups_minus1 */
651 bitstream_put_ue(bs, pic_param.num_ref_idx_l0_active_minus1); /* num_ref_idx_l0_active_minus1 */
652 bitstream_put_ue(bs, pic_param.num_ref_idx_l1_active_minus1); /* num_ref_idx_l1_active_minus1 1 */
654 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_pred_flag, 1); /* weighted_pred_flag: 0 */
655 bitstream_put_ui(bs, pic_param.pic_fields.bits.weighted_bipred_idc, 2); /* weighted_bipred_idc: 0 */
657 bitstream_put_se(bs, pic_param.pic_init_qp - 26); /* pic_init_qp_minus26 */
658 bitstream_put_se(bs, 0); /* pic_init_qs_minus26 */
659 bitstream_put_se(bs, 0); /* chroma_qp_index_offset */
661 bitstream_put_ui(bs, pic_param.pic_fields.bits.deblocking_filter_control_present_flag, 1); /* deblocking_filter_control_present_flag */
662 bitstream_put_ui(bs, 0, 1); /* constrained_intra_pred_flag */
663 bitstream_put_ui(bs, 0, 1); /* redundant_pic_cnt_present_flag */
666 bitstream_put_ui(bs, pic_param.pic_fields.bits.transform_8x8_mode_flag, 1); /*transform_8x8_mode_flag */
667 bitstream_put_ui(bs, 0, 1); /* pic_scaling_matrix_present_flag */
668 bitstream_put_se(bs, pic_param.second_chroma_qp_index_offset ); /*second_chroma_qp_index_offset */
670 rbsp_trailing_bits(bs);
673 void H264EncoderImpl::slice_header(bitstream *bs)
675 int first_mb_in_slice = slice_param.macroblock_address;
677 bitstream_put_ue(bs, first_mb_in_slice); /* first_mb_in_slice: 0 */
678 bitstream_put_ue(bs, slice_param.slice_type); /* slice_type */
679 bitstream_put_ue(bs, slice_param.pic_parameter_set_id); /* pic_parameter_set_id: 0 */
680 bitstream_put_ui(bs, pic_param.frame_num, seq_param.seq_fields.bits.log2_max_frame_num_minus4 + 4); /* frame_num */
682 /* frame_mbs_only_flag == 1 */
683 if (!seq_param.seq_fields.bits.frame_mbs_only_flag) {
688 if (pic_param.pic_fields.bits.idr_pic_flag)
689 bitstream_put_ue(bs, slice_param.idr_pic_id); /* idr_pic_id: 0 */
691 if (seq_param.seq_fields.bits.pic_order_cnt_type == 0) {
692 bitstream_put_ui(bs, pic_param.CurrPic.TopFieldOrderCnt, seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 + 4);
693 /* pic_order_present_flag == 0 */
699 /* redundant_pic_cnt_present_flag == 0 */
701 if (IS_P_SLICE(slice_param.slice_type)) {
702 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
704 if (slice_param.num_ref_idx_active_override_flag)
705 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
707 /* ref_pic_list_reordering */
708 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
709 } else if (IS_B_SLICE(slice_param.slice_type)) {
710 bitstream_put_ui(bs, slice_param.direct_spatial_mv_pred_flag, 1); /* direct_spatial_mv_pred: 1 */
712 bitstream_put_ui(bs, slice_param.num_ref_idx_active_override_flag, 1); /* num_ref_idx_active_override_flag: */
714 if (slice_param.num_ref_idx_active_override_flag) {
715 bitstream_put_ue(bs, slice_param.num_ref_idx_l0_active_minus1);
716 bitstream_put_ue(bs, slice_param.num_ref_idx_l1_active_minus1);
719 /* ref_pic_list_reordering */
720 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l0: 0 */
721 bitstream_put_ui(bs, 0, 1); /* ref_pic_list_reordering_flag_l1: 0 */
724 if ((pic_param.pic_fields.bits.weighted_pred_flag &&
725 IS_P_SLICE(slice_param.slice_type)) ||
726 ((pic_param.pic_fields.bits.weighted_bipred_idc == 1) &&
727 IS_B_SLICE(slice_param.slice_type))) {
728 /* FIXME: fill weight/offset table */
732 /* dec_ref_pic_marking */
733 if (pic_param.pic_fields.bits.reference_pic_flag) { /* nal_ref_idc != 0 */
734 unsigned char no_output_of_prior_pics_flag = 0;
735 unsigned char long_term_reference_flag = 0;
736 unsigned char adaptive_ref_pic_marking_mode_flag = 0;
738 if (pic_param.pic_fields.bits.idr_pic_flag) {
739 bitstream_put_ui(bs, no_output_of_prior_pics_flag, 1); /* no_output_of_prior_pics_flag: 0 */
740 bitstream_put_ui(bs, long_term_reference_flag, 1); /* long_term_reference_flag: 0 */
742 bitstream_put_ui(bs, adaptive_ref_pic_marking_mode_flag, 1); /* adaptive_ref_pic_marking_mode_flag: 0 */
746 if (pic_param.pic_fields.bits.entropy_coding_mode_flag &&
747 !IS_I_SLICE(slice_param.slice_type))
748 bitstream_put_ue(bs, slice_param.cabac_init_idc); /* cabac_init_idc: 0 */
750 bitstream_put_se(bs, slice_param.slice_qp_delta); /* slice_qp_delta: 0 */
752 /* ignore for SP/SI */
754 if (pic_param.pic_fields.bits.deblocking_filter_control_present_flag) {
755 bitstream_put_ue(bs, slice_param.disable_deblocking_filter_idc); /* disable_deblocking_filter_idc: 0 */
757 if (slice_param.disable_deblocking_filter_idc != 1) {
758 bitstream_put_se(bs, slice_param.slice_alpha_c0_offset_div2); /* slice_alpha_c0_offset_div2: 2 */
759 bitstream_put_se(bs, slice_param.slice_beta_offset_div2); /* slice_beta_offset_div2: 2 */
763 if (pic_param.pic_fields.bits.entropy_coding_mode_flag) {
764 bitstream_byte_aligning(bs, 1);
768 int H264EncoderImpl::build_packed_pic_buffer(unsigned char **header_buffer)
772 bitstream_start(&bs);
773 nal_start_code_prefix(&bs);
774 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_PPS);
778 *header_buffer = (unsigned char *)bs.buffer;
779 return bs.bit_offset;
783 H264EncoderImpl::build_packed_seq_buffer(unsigned char **header_buffer)
787 bitstream_start(&bs);
788 nal_start_code_prefix(&bs);
789 nal_header(&bs, NAL_REF_IDC_HIGH, NAL_SPS);
793 *header_buffer = (unsigned char *)bs.buffer;
794 return bs.bit_offset;
797 int H264EncoderImpl::build_packed_slice_buffer(unsigned char **header_buffer)
800 int is_idr = !!pic_param.pic_fields.bits.idr_pic_flag;
801 int is_ref = !!pic_param.pic_fields.bits.reference_pic_flag;
803 bitstream_start(&bs);
804 nal_start_code_prefix(&bs);
806 if (IS_I_SLICE(slice_param.slice_type)) {
807 nal_header(&bs, NAL_REF_IDC_HIGH, is_idr ? NAL_IDR : NAL_NON_IDR);
808 } else if (IS_P_SLICE(slice_param.slice_type)) {
809 nal_header(&bs, NAL_REF_IDC_MEDIUM, NAL_NON_IDR);
811 assert(IS_B_SLICE(slice_param.slice_type));
812 nal_header(&bs, is_ref ? NAL_REF_IDC_LOW : NAL_REF_IDC_NONE, NAL_NON_IDR);
818 *header_buffer = (unsigned char *)bs.buffer;
819 return bs.bit_offset;
824 Assume frame sequence is: Frame#0, #1, #2, ..., #M, ..., #X, ... (encoding order)
825 1) period between Frame #X and Frame #N = #X - #N
826 2) 0 means infinite for intra_period/intra_idr_period, and 0 is invalid for ip_period
827 3) intra_idr_period % intra_period (intra_period > 0) and intra_period % ip_period must be 0
828 4) intra_period and intra_idr_period take precedence over ip_period
829 5) if ip_period > 1, intra_period and intra_idr_period are not the strict periods
830 of I/IDR frames, see bellow examples
831 -------------------------------------------------------------------
832 intra_period intra_idr_period ip_period frame sequence (intra_period/intra_idr_period/ip_period)
833 0 ignored 1 IDRPPPPPPP ... (No IDR/I any more)
834 0 ignored >=2 IDR(PBB)(PBB)... (No IDR/I any more)
835 1 0 ignored IDRIIIIIII... (No IDR any more)
836 1 1 ignored IDR IDR IDR IDR...
837 1 >=2 ignored IDRII IDRII IDR... (1/3/ignore)
838 >=2 0 1 IDRPPP IPPP I... (3/0/1)
839 >=2 0 >=2 IDR(PBB)(PBB)(IBB) (6/0/3)
840 (PBB)(IBB)(PBB)(IBB)...
841 >=2 >=2 1 IDRPPPPP IPPPPP IPPPPP (6/18/1)
842 IDRPPPPP IPPPPP IPPPPP...
843 >=2 >=2 >=2 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)} (6/18/3)
844 {IDR(PBB)(PBB)(IBB)(PBB)(IBB)(PBB)}...
845 {IDR(PBB)(PBB)(IBB)(PBB)} (6/12/3)
846 {IDR(PBB)(PBB)(IBB)(PBB)}...
847 {IDR(PBB)(PBB)} (6/6/3)
851 // General pts/dts strategy:
853 // Getting pts and dts right with variable frame rate (VFR) and B-frames can be a
854 // bit tricky. We assume first of all that the frame rate never goes _above_
855 // MAX_FPS, which gives us a frame period N. The decoder can always decode
856 // in at least this speed, as long at dts <= pts (the frame is not attempted
857 // presented before it is decoded). Furthermore, we never have longer chains of
858 // B-frames than a fixed constant C. (In a B-frame chain, we say that the base
859 // I/P-frame has order O=0, the B-frame depending on it directly has order O=1,
860 // etc. The last frame in the chain, which no B-frames depend on, is the “tip”
861 // frame, with an order O <= C.)
863 // Many strategies are possible, but we establish these rules:
865 // - Tip frames have dts = pts - (C-O)*N.
866 // - Non-tip frames have dts = dts_last + N.
868 // An example, with C=2 and N=10 and the data flow showed with arrows:
871 // pts: 30 40 50 60 70 80
873 // dts: 10 30 20 60 50←40
878 // To show that this works fine also with irregular spacings, let's say that
879 // the third frame is delayed a bit (something earlier was dropped). Now the
880 // situation looks like this:
883 // pts: 30 40 80 90 100 110
885 // dts: 10 30 20 90 50←40
890 // The resetting on every tip frame makes sure dts never ends up lagging a lot
891 // behind pts, and the subtraction of (C-O)*N makes sure pts <= dts.
893 // In the output of this function, if <dts_lag> is >= 0, it means to reset the
894 // dts from the current pts minus <dts_lag>, while if it's -1, the frame is not
895 // a tip frame and should be given a dts based on the previous one.
900 void encoding2display_order(
901 int encoding_order, int intra_period,
902 int intra_idr_period, int ip_period,
903 int *displaying_order,
904 int *frame_type, int *pts_lag)
906 int encoding_order_gop = 0;
910 if (intra_period == 1) { /* all are I/IDR frames */
911 *displaying_order = encoding_order;
912 if (intra_idr_period == 0)
913 *frame_type = (encoding_order == 0)?FRAME_IDR:FRAME_I;
915 *frame_type = (encoding_order % intra_idr_period == 0)?FRAME_IDR:FRAME_I;
919 if (intra_period == 0)
920 intra_idr_period = 0;
922 if (ip_period == 1) {
923 // No B-frames, sequence is like IDR PPPPP IPPPPP.
924 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % intra_idr_period);
925 *displaying_order = encoding_order;
927 if (encoding_order_gop == 0) { /* the first frame */
928 *frame_type = FRAME_IDR;
929 } else if (intra_period != 0 && /* have I frames */
930 encoding_order_gop >= 2 &&
931 (encoding_order_gop % intra_period == 0)) {
932 *frame_type = FRAME_I;
934 *frame_type = FRAME_P;
939 // We have B-frames. Sequence is like IDR (PBB)(PBB)(IBB)(PBB).
940 encoding_order_gop = (intra_idr_period == 0) ? encoding_order : (encoding_order % (intra_idr_period + 1));
941 *pts_lag = -1; // Most frames are not tip frames.
943 if (encoding_order_gop == 0) { /* the first frame */
944 *frame_type = FRAME_IDR;
945 *displaying_order = encoding_order;
946 // IDR frames are a special case; I honestly can't find the logic behind
947 // why this is the right thing, but it seems to line up nicely in practice :-)
948 *pts_lag = TIMEBASE / MAX_FPS;
949 } else if (((encoding_order_gop - 1) % ip_period) != 0) { /* B frames */
950 *frame_type = FRAME_B;
951 *displaying_order = encoding_order - 1;
952 if ((encoding_order_gop % ip_period) == 0) {
953 *pts_lag = 0; // Last B-frame.
955 } else if (intra_period != 0 && /* have I frames */
956 encoding_order_gop >= 2 &&
957 ((encoding_order_gop - 1) / ip_period % (intra_period / ip_period)) == 0) {
958 *frame_type = FRAME_I;
959 *displaying_order = encoding_order + ip_period - 1;
961 *frame_type = FRAME_P;
962 *displaying_order = encoding_order + ip_period - 1;
967 static const char *rc_to_string(int rc_mode)
980 case VA_RC_VBR_CONSTRAINED:
981 return "VBR_CONSTRAINED";
987 void H264EncoderImpl::enable_zerocopy_if_possible()
989 if (global_flags.uncompressed_video_to_http) {
990 fprintf(stderr, "Disabling zerocopy H.264 encoding due to --http-uncompressed-video.\n");
991 use_zerocopy = false;
992 } else if (global_flags.x264_video_to_http) {
993 fprintf(stderr, "Disabling zerocopy H.264 encoding due to --http-x264-video.\n");
994 use_zerocopy = false;
1000 VADisplay H264EncoderImpl::va_open_display(const string &va_display)
1002 if (va_display.empty()) {
1003 x11_display = XOpenDisplay(NULL);
1005 fprintf(stderr, "error: can't connect to X server!\n");
1008 enable_zerocopy_if_possible();
1009 return vaGetDisplay(x11_display);
1010 } else if (va_display[0] != '/') {
1011 x11_display = XOpenDisplay(va_display.c_str());
1013 fprintf(stderr, "error: can't connect to X server!\n");
1016 enable_zerocopy_if_possible();
1017 return vaGetDisplay(x11_display);
1019 drm_fd = open(va_display.c_str(), O_RDWR);
1021 perror(va_display.c_str());
1024 use_zerocopy = false;
1025 return vaGetDisplayDRM(drm_fd);
1029 void H264EncoderImpl::va_close_display(VADisplay va_dpy)
1032 XCloseDisplay(x11_display);
1033 x11_display = nullptr;
1040 int H264EncoderImpl::init_va(const string &va_display)
1042 VAProfile profile_list[]={VAProfileH264High, VAProfileH264Main, VAProfileH264Baseline, VAProfileH264ConstrainedBaseline};
1043 VAEntrypoint *entrypoints;
1044 int num_entrypoints, slice_entrypoint;
1045 int support_encode = 0;
1046 int major_ver, minor_ver;
1050 va_dpy = va_open_display(va_display);
1051 va_status = vaInitialize(va_dpy, &major_ver, &minor_ver);
1052 CHECK_VASTATUS(va_status, "vaInitialize");
1054 num_entrypoints = vaMaxNumEntrypoints(va_dpy);
1055 entrypoints = (VAEntrypoint *)malloc(num_entrypoints * sizeof(*entrypoints));
1057 fprintf(stderr, "error: failed to initialize VA entrypoints array\n");
1061 /* use the highest profile */
1062 for (i = 0; i < sizeof(profile_list)/sizeof(profile_list[0]); i++) {
1063 if ((h264_profile != ~0) && h264_profile != profile_list[i])
1066 h264_profile = profile_list[i];
1067 vaQueryConfigEntrypoints(va_dpy, h264_profile, entrypoints, &num_entrypoints);
1068 for (slice_entrypoint = 0; slice_entrypoint < num_entrypoints; slice_entrypoint++) {
1069 if (entrypoints[slice_entrypoint] == VAEntrypointEncSlice) {
1074 if (support_encode == 1)
1078 if (support_encode == 0) {
1079 printf("Can't find VAEntrypointEncSlice for H264 profiles. If you are using a non-Intel GPU\n");
1080 printf("but have one in your system, try launching Nageru with --va-display /dev/dri/renderD128\n");
1081 printf("to use VA-API against DRM instead of X11.\n");
1084 switch (h264_profile) {
1085 case VAProfileH264Baseline:
1087 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
1088 h264_entropy_mode = 0;
1090 case VAProfileH264ConstrainedBaseline:
1091 constraint_set_flag |= (1 << 0 | 1 << 1); /* Annex A.2.2 */
1095 case VAProfileH264Main:
1096 constraint_set_flag |= (1 << 1); /* Annex A.2.2 */
1099 case VAProfileH264High:
1100 constraint_set_flag |= (1 << 3); /* Annex A.2.4 */
1103 h264_profile = VAProfileH264Baseline;
1105 constraint_set_flag |= (1 << 0); /* Annex A.2.1 */
1110 VAConfigAttrib attrib[VAConfigAttribTypeMax];
1112 /* find out the format for the render target, and rate control mode */
1113 for (i = 0; i < VAConfigAttribTypeMax; i++)
1114 attrib[i].type = (VAConfigAttribType)i;
1116 va_status = vaGetConfigAttributes(va_dpy, h264_profile, VAEntrypointEncSlice,
1117 &attrib[0], VAConfigAttribTypeMax);
1118 CHECK_VASTATUS(va_status, "vaGetConfigAttributes");
1119 /* check the interested configattrib */
1120 if ((attrib[VAConfigAttribRTFormat].value & VA_RT_FORMAT_YUV420) == 0) {
1121 printf("Not find desired YUV420 RT format\n");
1124 config_attrib[config_attrib_num].type = VAConfigAttribRTFormat;
1125 config_attrib[config_attrib_num].value = VA_RT_FORMAT_YUV420;
1126 config_attrib_num++;
1129 if (attrib[VAConfigAttribRateControl].value != VA_ATTRIB_NOT_SUPPORTED) {
1130 int tmp = attrib[VAConfigAttribRateControl].value;
1132 if (rc_mode == -1 || !(rc_mode & tmp)) {
1133 if (rc_mode != -1) {
1134 printf("Warning: Don't support the specified RateControl mode: %s!!!, switch to ", rc_to_string(rc_mode));
1137 for (i = 0; i < sizeof(rc_default_modes) / sizeof(rc_default_modes[0]); i++) {
1138 if (rc_default_modes[i] & tmp) {
1139 rc_mode = rc_default_modes[i];
1145 config_attrib[config_attrib_num].type = VAConfigAttribRateControl;
1146 config_attrib[config_attrib_num].value = rc_mode;
1147 config_attrib_num++;
1151 if (attrib[VAConfigAttribEncPackedHeaders].value != VA_ATTRIB_NOT_SUPPORTED) {
1152 int tmp = attrib[VAConfigAttribEncPackedHeaders].value;
1154 h264_packedheader = 1;
1155 config_attrib[config_attrib_num].type = VAConfigAttribEncPackedHeaders;
1156 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
1158 if (tmp & VA_ENC_PACKED_HEADER_SEQUENCE) {
1159 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SEQUENCE;
1162 if (tmp & VA_ENC_PACKED_HEADER_PICTURE) {
1163 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_PICTURE;
1166 if (tmp & VA_ENC_PACKED_HEADER_SLICE) {
1167 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_SLICE;
1170 if (tmp & VA_ENC_PACKED_HEADER_MISC) {
1171 config_attrib[config_attrib_num].value |= VA_ENC_PACKED_HEADER_MISC;
1174 enc_packed_header_idx = config_attrib_num;
1175 config_attrib_num++;
1178 if (attrib[VAConfigAttribEncInterlaced].value != VA_ATTRIB_NOT_SUPPORTED) {
1179 config_attrib[config_attrib_num].type = VAConfigAttribEncInterlaced;
1180 config_attrib[config_attrib_num].value = VA_ENC_PACKED_HEADER_NONE;
1181 config_attrib_num++;
1184 if (attrib[VAConfigAttribEncMaxRefFrames].value != VA_ATTRIB_NOT_SUPPORTED) {
1185 h264_maxref = attrib[VAConfigAttribEncMaxRefFrames].value;
1192 int H264EncoderImpl::setup_encode()
1195 VASurfaceID *tmp_surfaceid;
1196 int codedbuf_size, i;
1197 static VASurfaceID src_surface[SURFACE_NUM];
1198 static VASurfaceID ref_surface[SURFACE_NUM];
1200 va_status = vaCreateConfig(va_dpy, h264_profile, VAEntrypointEncSlice,
1201 &config_attrib[0], config_attrib_num, &config_id);
1202 CHECK_VASTATUS(va_status, "vaCreateConfig");
1204 /* create source surfaces */
1205 va_status = vaCreateSurfaces(va_dpy,
1206 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
1207 &src_surface[0], SURFACE_NUM,
1209 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
1211 /* create reference surfaces */
1212 va_status = vaCreateSurfaces(va_dpy,
1213 VA_RT_FORMAT_YUV420, frame_width_mbaligned, frame_height_mbaligned,
1214 &ref_surface[0], SURFACE_NUM,
1216 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
1218 tmp_surfaceid = (VASurfaceID *)calloc(2 * SURFACE_NUM, sizeof(VASurfaceID));
1219 memcpy(tmp_surfaceid, src_surface, SURFACE_NUM * sizeof(VASurfaceID));
1220 memcpy(tmp_surfaceid + SURFACE_NUM, ref_surface, SURFACE_NUM * sizeof(VASurfaceID));
1222 /* Create a context for this encode pipe */
1223 va_status = vaCreateContext(va_dpy, config_id,
1224 frame_width_mbaligned, frame_height_mbaligned,
1226 tmp_surfaceid, 2 * SURFACE_NUM,
1228 CHECK_VASTATUS(va_status, "vaCreateContext");
1229 free(tmp_surfaceid);
1231 codedbuf_size = (frame_width_mbaligned * frame_height_mbaligned * 400) / (16*16);
1233 for (i = 0; i < SURFACE_NUM; i++) {
1234 /* create coded buffer once for all
1235 * other VA buffers which won't be used again after vaRenderPicture.
1236 * so APP can always vaCreateBuffer for every frame
1237 * but coded buffer need to be mapped and accessed after vaRenderPicture/vaEndPicture
1238 * so VA won't maintain the coded buffer
1240 va_status = vaCreateBuffer(va_dpy, context_id, VAEncCodedBufferType,
1241 codedbuf_size, 1, NULL, &gl_surfaces[i].coded_buf);
1242 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1245 /* create OpenGL objects */
1246 //glGenFramebuffers(SURFACE_NUM, fbos);
1248 for (i = 0; i < SURFACE_NUM; i++) {
1249 glGenTextures(1, &gl_surfaces[i].y_tex);
1250 glGenTextures(1, &gl_surfaces[i].cbcr_tex);
1252 if (!use_zerocopy) {
1254 glBindTexture(GL_TEXTURE_2D, gl_surfaces[i].y_tex);
1255 glTexStorage2D(GL_TEXTURE_2D, 1, GL_R8, frame_width, frame_height);
1257 // Create CbCr image.
1258 glBindTexture(GL_TEXTURE_2D, gl_surfaces[i].cbcr_tex);
1259 glTexStorage2D(GL_TEXTURE_2D, 1, GL_RG8, frame_width / 2, frame_height / 2);
1261 // Generate a PBO to read into. It doesn't necessarily fit 1:1 with the VA-API
1262 // buffers, due to potentially differing pitch.
1263 glGenBuffers(1, &gl_surfaces[i].pbo);
1264 glBindBuffer(GL_PIXEL_PACK_BUFFER, gl_surfaces[i].pbo);
1265 glBufferStorage(GL_PIXEL_PACK_BUFFER, frame_width * frame_height * 2, nullptr, GL_MAP_READ_BIT | GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT);
1266 uint8_t *ptr = (uint8_t *)glMapBufferRange(GL_PIXEL_PACK_BUFFER, 0, frame_width * frame_height * 2, GL_MAP_READ_BIT | GL_MAP_PERSISTENT_BIT);
1267 gl_surfaces[i].y_offset = 0;
1268 gl_surfaces[i].cbcr_offset = frame_width * frame_height;
1269 gl_surfaces[i].y_ptr = ptr + gl_surfaces[i].y_offset;
1270 gl_surfaces[i].cbcr_ptr = ptr + gl_surfaces[i].cbcr_offset;
1271 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1275 for (i = 0; i < SURFACE_NUM; i++) {
1276 gl_surfaces[i].src_surface = src_surface[i];
1277 gl_surfaces[i].ref_surface = ref_surface[i];
1283 // Given a list like 1 9 3 0 2 8 4 and a pivot element 3, will produce
1286 template<class T, class C>
1287 static void sort_two(T *begin, T *end, const T &pivot, const C &less_than)
1289 T *middle = partition(begin, end, [&](const T &elem) { return less_than(elem, pivot); });
1290 sort(begin, middle, [&](const T &a, const T &b) { return less_than(b, a); });
1291 sort(middle, end, less_than);
1294 void H264EncoderImpl::update_ReferenceFrames(int frame_type)
1298 if (frame_type == FRAME_B)
1301 CurrentCurrPic.flags = VA_PICTURE_H264_SHORT_TERM_REFERENCE;
1303 if (numShortTerm > num_ref_frames)
1304 numShortTerm = num_ref_frames;
1305 for (i=numShortTerm-1; i>0; i--)
1306 ReferenceFrames[i] = ReferenceFrames[i-1];
1307 ReferenceFrames[0] = CurrentCurrPic;
1309 current_frame_num++;
1310 if (current_frame_num > MaxFrameNum)
1311 current_frame_num = 0;
1315 int H264EncoderImpl::update_RefPicList(int frame_type)
1317 const auto descending_by_frame_idx = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1318 return a.frame_idx > b.frame_idx;
1320 const auto ascending_by_top_field_order_cnt = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1321 return a.TopFieldOrderCnt < b.TopFieldOrderCnt;
1323 const auto descending_by_top_field_order_cnt = [](const VAPictureH264 &a, const VAPictureH264 &b) {
1324 return a.TopFieldOrderCnt > b.TopFieldOrderCnt;
1327 if (frame_type == FRAME_P) {
1328 memcpy(RefPicList0_P, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1329 sort(&RefPicList0_P[0], &RefPicList0_P[numShortTerm], descending_by_frame_idx);
1330 } else if (frame_type == FRAME_B) {
1331 memcpy(RefPicList0_B, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1332 sort_two(&RefPicList0_B[0], &RefPicList0_B[numShortTerm], CurrentCurrPic, ascending_by_top_field_order_cnt);
1334 memcpy(RefPicList1_B, ReferenceFrames, numShortTerm * sizeof(VAPictureH264));
1335 sort_two(&RefPicList1_B[0], &RefPicList1_B[numShortTerm], CurrentCurrPic, descending_by_top_field_order_cnt);
1342 int H264EncoderImpl::render_sequence()
1344 VABufferID seq_param_buf, rc_param_buf, render_id[2];
1346 VAEncMiscParameterBuffer *misc_param;
1347 VAEncMiscParameterRateControl *misc_rate_ctrl;
1349 seq_param.level_idc = 41 /*SH_LEVEL_3*/;
1350 seq_param.picture_width_in_mbs = frame_width_mbaligned / 16;
1351 seq_param.picture_height_in_mbs = frame_height_mbaligned / 16;
1352 seq_param.bits_per_second = frame_bitrate;
1354 seq_param.intra_period = intra_period;
1355 seq_param.intra_idr_period = intra_idr_period;
1356 seq_param.ip_period = ip_period;
1358 seq_param.max_num_ref_frames = num_ref_frames;
1359 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1360 seq_param.time_scale = TIMEBASE * 2;
1361 seq_param.num_units_in_tick = 1; /* Tc = num_units_in_tick / scale */
1362 seq_param.seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 = Log2MaxPicOrderCntLsb - 4;
1363 seq_param.seq_fields.bits.log2_max_frame_num_minus4 = Log2MaxFrameNum - 4;;
1364 seq_param.seq_fields.bits.frame_mbs_only_flag = 1;
1365 seq_param.seq_fields.bits.chroma_format_idc = 1;
1366 seq_param.seq_fields.bits.direct_8x8_inference_flag = 1;
1368 if (frame_width != frame_width_mbaligned ||
1369 frame_height != frame_height_mbaligned) {
1370 seq_param.frame_cropping_flag = 1;
1371 seq_param.frame_crop_left_offset = 0;
1372 seq_param.frame_crop_right_offset = (frame_width_mbaligned - frame_width)/2;
1373 seq_param.frame_crop_top_offset = 0;
1374 seq_param.frame_crop_bottom_offset = (frame_height_mbaligned - frame_height)/2;
1377 va_status = vaCreateBuffer(va_dpy, context_id,
1378 VAEncSequenceParameterBufferType,
1379 sizeof(seq_param), 1, &seq_param, &seq_param_buf);
1380 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1382 va_status = vaCreateBuffer(va_dpy, context_id,
1383 VAEncMiscParameterBufferType,
1384 sizeof(VAEncMiscParameterBuffer) + sizeof(VAEncMiscParameterRateControl),
1385 1, NULL, &rc_param_buf);
1386 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1388 vaMapBuffer(va_dpy, rc_param_buf, (void **)&misc_param);
1389 misc_param->type = VAEncMiscParameterTypeRateControl;
1390 misc_rate_ctrl = (VAEncMiscParameterRateControl *)misc_param->data;
1391 memset(misc_rate_ctrl, 0, sizeof(*misc_rate_ctrl));
1392 misc_rate_ctrl->bits_per_second = frame_bitrate;
1393 misc_rate_ctrl->target_percentage = 66;
1394 misc_rate_ctrl->window_size = 1000;
1395 misc_rate_ctrl->initial_qp = initial_qp;
1396 misc_rate_ctrl->min_qp = minimal_qp;
1397 misc_rate_ctrl->basic_unit_size = 0;
1398 vaUnmapBuffer(va_dpy, rc_param_buf);
1400 render_id[0] = seq_param_buf;
1401 render_id[1] = rc_param_buf;
1403 render_picture_and_delete(va_dpy, context_id, &render_id[0], 2);
1408 static int calc_poc(int pic_order_cnt_lsb, int frame_type)
1410 static int PicOrderCntMsb_ref = 0, pic_order_cnt_lsb_ref = 0;
1411 int prevPicOrderCntMsb, prevPicOrderCntLsb;
1412 int PicOrderCntMsb, TopFieldOrderCnt;
1414 if (frame_type == FRAME_IDR)
1415 prevPicOrderCntMsb = prevPicOrderCntLsb = 0;
1417 prevPicOrderCntMsb = PicOrderCntMsb_ref;
1418 prevPicOrderCntLsb = pic_order_cnt_lsb_ref;
1421 if ((pic_order_cnt_lsb < prevPicOrderCntLsb) &&
1422 ((prevPicOrderCntLsb - pic_order_cnt_lsb) >= (int)(MaxPicOrderCntLsb / 2)))
1423 PicOrderCntMsb = prevPicOrderCntMsb + MaxPicOrderCntLsb;
1424 else if ((pic_order_cnt_lsb > prevPicOrderCntLsb) &&
1425 ((pic_order_cnt_lsb - prevPicOrderCntLsb) > (int)(MaxPicOrderCntLsb / 2)))
1426 PicOrderCntMsb = prevPicOrderCntMsb - MaxPicOrderCntLsb;
1428 PicOrderCntMsb = prevPicOrderCntMsb;
1430 TopFieldOrderCnt = PicOrderCntMsb + pic_order_cnt_lsb;
1432 if (frame_type != FRAME_B) {
1433 PicOrderCntMsb_ref = PicOrderCntMsb;
1434 pic_order_cnt_lsb_ref = pic_order_cnt_lsb;
1437 return TopFieldOrderCnt;
1440 int H264EncoderImpl::render_picture(int frame_type, int display_frame_num, int gop_start_display_frame_num)
1442 VABufferID pic_param_buf;
1446 pic_param.CurrPic.picture_id = gl_surfaces[display_frame_num % SURFACE_NUM].ref_surface;
1447 pic_param.CurrPic.frame_idx = current_frame_num;
1448 pic_param.CurrPic.flags = 0;
1449 pic_param.CurrPic.TopFieldOrderCnt = calc_poc((display_frame_num - gop_start_display_frame_num) % MaxPicOrderCntLsb, frame_type);
1450 pic_param.CurrPic.BottomFieldOrderCnt = pic_param.CurrPic.TopFieldOrderCnt;
1451 CurrentCurrPic = pic_param.CurrPic;
1453 memcpy(pic_param.ReferenceFrames, ReferenceFrames, numShortTerm*sizeof(VAPictureH264));
1454 for (i = numShortTerm; i < MAX_NUM_REF1; i++) {
1455 pic_param.ReferenceFrames[i].picture_id = VA_INVALID_SURFACE;
1456 pic_param.ReferenceFrames[i].flags = VA_PICTURE_H264_INVALID;
1459 pic_param.pic_fields.bits.idr_pic_flag = (frame_type == FRAME_IDR);
1460 pic_param.pic_fields.bits.reference_pic_flag = (frame_type != FRAME_B);
1461 pic_param.pic_fields.bits.entropy_coding_mode_flag = h264_entropy_mode;
1462 pic_param.pic_fields.bits.deblocking_filter_control_present_flag = 1;
1463 pic_param.frame_num = current_frame_num;
1464 pic_param.coded_buf = gl_surfaces[display_frame_num % SURFACE_NUM].coded_buf;
1465 pic_param.last_picture = false; // FIXME
1466 pic_param.pic_init_qp = initial_qp;
1468 va_status = vaCreateBuffer(va_dpy, context_id, VAEncPictureParameterBufferType,
1469 sizeof(pic_param), 1, &pic_param, &pic_param_buf);
1470 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1472 render_picture_and_delete(va_dpy, context_id, &pic_param_buf, 1);
1477 int H264EncoderImpl::render_packedsequence()
1479 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1480 VABufferID packedseq_para_bufid, packedseq_data_bufid, render_id[2];
1481 unsigned int length_in_bits;
1482 unsigned char *packedseq_buffer = NULL;
1485 length_in_bits = build_packed_seq_buffer(&packedseq_buffer);
1487 packedheader_param_buffer.type = VAEncPackedHeaderSequence;
1489 packedheader_param_buffer.bit_length = length_in_bits; /*length_in_bits*/
1490 packedheader_param_buffer.has_emulation_bytes = 0;
1491 va_status = vaCreateBuffer(va_dpy,
1493 VAEncPackedHeaderParameterBufferType,
1494 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1495 &packedseq_para_bufid);
1496 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1498 va_status = vaCreateBuffer(va_dpy,
1500 VAEncPackedHeaderDataBufferType,
1501 (length_in_bits + 7) / 8, 1, packedseq_buffer,
1502 &packedseq_data_bufid);
1503 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1505 render_id[0] = packedseq_para_bufid;
1506 render_id[1] = packedseq_data_bufid;
1507 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1509 free(packedseq_buffer);
1515 int H264EncoderImpl::render_packedpicture()
1517 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1518 VABufferID packedpic_para_bufid, packedpic_data_bufid, render_id[2];
1519 unsigned int length_in_bits;
1520 unsigned char *packedpic_buffer = NULL;
1523 length_in_bits = build_packed_pic_buffer(&packedpic_buffer);
1524 packedheader_param_buffer.type = VAEncPackedHeaderPicture;
1525 packedheader_param_buffer.bit_length = length_in_bits;
1526 packedheader_param_buffer.has_emulation_bytes = 0;
1528 va_status = vaCreateBuffer(va_dpy,
1530 VAEncPackedHeaderParameterBufferType,
1531 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1532 &packedpic_para_bufid);
1533 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1535 va_status = vaCreateBuffer(va_dpy,
1537 VAEncPackedHeaderDataBufferType,
1538 (length_in_bits + 7) / 8, 1, packedpic_buffer,
1539 &packedpic_data_bufid);
1540 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1542 render_id[0] = packedpic_para_bufid;
1543 render_id[1] = packedpic_data_bufid;
1544 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1546 free(packedpic_buffer);
1551 void H264EncoderImpl::render_packedslice()
1553 VAEncPackedHeaderParameterBuffer packedheader_param_buffer;
1554 VABufferID packedslice_para_bufid, packedslice_data_bufid, render_id[2];
1555 unsigned int length_in_bits;
1556 unsigned char *packedslice_buffer = NULL;
1559 length_in_bits = build_packed_slice_buffer(&packedslice_buffer);
1560 packedheader_param_buffer.type = VAEncPackedHeaderSlice;
1561 packedheader_param_buffer.bit_length = length_in_bits;
1562 packedheader_param_buffer.has_emulation_bytes = 0;
1564 va_status = vaCreateBuffer(va_dpy,
1566 VAEncPackedHeaderParameterBufferType,
1567 sizeof(packedheader_param_buffer), 1, &packedheader_param_buffer,
1568 &packedslice_para_bufid);
1569 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1571 va_status = vaCreateBuffer(va_dpy,
1573 VAEncPackedHeaderDataBufferType,
1574 (length_in_bits + 7) / 8, 1, packedslice_buffer,
1575 &packedslice_data_bufid);
1576 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1578 render_id[0] = packedslice_para_bufid;
1579 render_id[1] = packedslice_data_bufid;
1580 render_picture_and_delete(va_dpy, context_id, render_id, 2);
1582 free(packedslice_buffer);
1585 int H264EncoderImpl::render_slice(int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num, int frame_type)
1587 VABufferID slice_param_buf;
1591 update_RefPicList(frame_type);
1593 /* one frame, one slice */
1594 slice_param.macroblock_address = 0;
1595 slice_param.num_macroblocks = frame_width_mbaligned * frame_height_mbaligned/(16*16); /* Measured by MB */
1596 slice_param.slice_type = (frame_type == FRAME_IDR)?2:frame_type;
1597 if (frame_type == FRAME_IDR) {
1598 if (encoding_frame_num != 0)
1599 ++slice_param.idr_pic_id;
1600 } else if (frame_type == FRAME_P) {
1601 int refpiclist0_max = h264_maxref & 0xffff;
1602 memcpy(slice_param.RefPicList0, RefPicList0_P, refpiclist0_max*sizeof(VAPictureH264));
1604 for (i = refpiclist0_max; i < MAX_NUM_REF2; i++) {
1605 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1606 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1608 } else if (frame_type == FRAME_B) {
1609 int refpiclist0_max = h264_maxref & 0xffff;
1610 int refpiclist1_max = (h264_maxref >> 16) & 0xffff;
1612 memcpy(slice_param.RefPicList0, RefPicList0_B, refpiclist0_max*sizeof(VAPictureH264));
1613 for (i = refpiclist0_max; i < MAX_NUM_REF2; i++) {
1614 slice_param.RefPicList0[i].picture_id = VA_INVALID_SURFACE;
1615 slice_param.RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1618 memcpy(slice_param.RefPicList1, RefPicList1_B, refpiclist1_max*sizeof(VAPictureH264));
1619 for (i = refpiclist1_max; i < MAX_NUM_REF2; i++) {
1620 slice_param.RefPicList1[i].picture_id = VA_INVALID_SURFACE;
1621 slice_param.RefPicList1[i].flags = VA_PICTURE_H264_INVALID;
1625 slice_param.slice_alpha_c0_offset_div2 = 0;
1626 slice_param.slice_beta_offset_div2 = 0;
1627 slice_param.direct_spatial_mv_pred_flag = 1;
1628 slice_param.pic_order_cnt_lsb = (display_frame_num - gop_start_display_frame_num) % MaxPicOrderCntLsb;
1631 if (h264_packedheader &&
1632 config_attrib[enc_packed_header_idx].value & VA_ENC_PACKED_HEADER_SLICE)
1633 render_packedslice();
1635 va_status = vaCreateBuffer(va_dpy, context_id, VAEncSliceParameterBufferType,
1636 sizeof(slice_param), 1, &slice_param, &slice_param_buf);
1637 CHECK_VASTATUS(va_status, "vaCreateBuffer");
1639 render_picture_and_delete(va_dpy, context_id, &slice_param_buf, 1);
1646 void H264EncoderImpl::save_codeddata(storage_task task)
1648 VACodedBufferSegment *buf_list = NULL;
1653 va_status = vaMapBuffer(va_dpy, gl_surfaces[task.display_order % SURFACE_NUM].coded_buf, (void **)(&buf_list));
1654 CHECK_VASTATUS(va_status, "vaMapBuffer");
1655 while (buf_list != NULL) {
1656 data.append(reinterpret_cast<const char *>(buf_list->buf), buf_list->size);
1657 buf_list = (VACodedBufferSegment *) buf_list->next;
1659 vaUnmapBuffer(va_dpy, gl_surfaces[task.display_order % SURFACE_NUM].coded_buf);
1664 memset(&pkt, 0, sizeof(pkt));
1666 pkt.data = reinterpret_cast<uint8_t *>(&data[0]);
1667 pkt.size = data.size();
1668 pkt.stream_index = 0;
1669 if (task.frame_type == FRAME_IDR) {
1670 pkt.flags = AV_PKT_FLAG_KEY;
1676 file_mux->add_packet(pkt, task.pts + global_delay(), task.dts + global_delay());
1678 if (!global_flags.uncompressed_video_to_http &&
1679 !global_flags.x264_video_to_http) {
1680 stream_mux->add_packet(pkt, task.pts + global_delay(), task.dts + global_delay());
1683 // Encode and add all audio frames up to and including the pts of this video frame.
1686 vector<float> audio;
1688 unique_lock<mutex> lock(frame_queue_mutex);
1689 frame_queue_nonempty.wait(lock, [this]{ return storage_thread_should_quit || !pending_audio_frames.empty(); });
1690 if (storage_thread_should_quit && pending_audio_frames.empty()) return;
1691 auto it = pending_audio_frames.begin();
1692 if (it->first > task.pts) break;
1693 audio_pts = it->first;
1694 audio = move(it->second);
1695 pending_audio_frames.erase(it);
1698 if (context_audio_stream) {
1699 encode_audio(audio, &audio_queue_file, audio_pts, context_audio_file, resampler_audio_file, { file_mux.get() });
1700 encode_audio(audio, &audio_queue_stream, audio_pts, context_audio_stream, resampler_audio_stream, { stream_mux.get() });
1702 encode_audio(audio, &audio_queue_file, audio_pts, context_audio_file, resampler_audio_file, { stream_mux.get(), file_mux.get() });
1704 last_audio_pts = audio_pts + audio.size() * TIMEBASE / (OUTPUT_FREQUENCY * 2);
1706 if (audio_pts == task.pts) break;
1710 void H264EncoderImpl::encode_audio(
1711 const vector<float> &audio,
1712 vector<float> *audio_queue,
1714 AVCodecContext *ctx,
1715 AVAudioResampleContext *resampler,
1716 const vector<Mux *> &muxes)
1718 if (ctx->frame_size == 0) {
1719 // No queueing needed.
1720 assert(audio_queue->empty());
1721 assert(audio.size() % 2 == 0);
1722 encode_audio_one_frame(&audio[0], audio.size() / 2, audio_pts, ctx, resampler, muxes);
1726 int64_t sample_offset = audio_queue->size();
1728 audio_queue->insert(audio_queue->end(), audio.begin(), audio.end());
1730 for (sample_num = 0;
1731 sample_num + ctx->frame_size * 2 <= audio_queue->size();
1732 sample_num += ctx->frame_size * 2) {
1733 int64_t adjusted_audio_pts = audio_pts + (int64_t(sample_num) - sample_offset) * TIMEBASE / (OUTPUT_FREQUENCY * 2);
1734 encode_audio_one_frame(&(*audio_queue)[sample_num],
1741 audio_queue->erase(audio_queue->begin(), audio_queue->begin() + sample_num);
1744 void H264EncoderImpl::encode_audio_one_frame(
1748 AVCodecContext *ctx,
1749 AVAudioResampleContext *resampler,
1750 const vector<Mux *> &muxes)
1752 audio_frame->pts = audio_pts + global_delay();
1753 audio_frame->nb_samples = num_samples;
1754 audio_frame->channel_layout = AV_CH_LAYOUT_STEREO;
1755 audio_frame->format = ctx->sample_fmt;
1756 audio_frame->sample_rate = OUTPUT_FREQUENCY;
1758 if (av_samples_alloc(audio_frame->data, nullptr, 2, num_samples, ctx->sample_fmt, 0) < 0) {
1759 fprintf(stderr, "Could not allocate %ld samples.\n", num_samples);
1763 if (avresample_convert(resampler, audio_frame->data, 0, num_samples,
1764 (uint8_t **)&audio, 0, num_samples) < 0) {
1765 fprintf(stderr, "Audio conversion failed.\n");
1770 av_init_packet(&pkt);
1774 avcodec_encode_audio2(ctx, &pkt, audio_frame, &got_output);
1776 pkt.stream_index = 1;
1778 for (Mux *mux : muxes) {
1779 mux->add_packet(pkt, pkt.pts, pkt.dts);
1783 av_freep(&audio_frame->data[0]);
1785 av_frame_unref(audio_frame);
1786 av_free_packet(&pkt);
1789 void H264EncoderImpl::encode_last_audio(
1790 vector<float> *audio_queue,
1792 AVCodecContext *ctx,
1793 AVAudioResampleContext *resampler,
1794 const vector<Mux *> &muxes)
1796 if (!audio_queue->empty()) {
1797 // Last frame can be whatever size we want.
1798 assert(audio_queue->size() % 2 == 0);
1799 encode_audio_one_frame(&(*audio_queue)[0], audio_queue->size() / 2, audio_pts, ctx, resampler, muxes);
1800 audio_queue->clear();
1803 if (ctx->codec->capabilities & AV_CODEC_CAP_DELAY) {
1804 // Collect any delayed frames.
1808 av_init_packet(&pkt);
1811 avcodec_encode_audio2(ctx, &pkt, nullptr, &got_output);
1812 if (!got_output) break;
1814 pkt.stream_index = 1;
1816 for (Mux *mux : muxes) {
1817 mux->add_packet(pkt, pkt.pts, pkt.dts);
1819 av_free_packet(&pkt);
1824 // this is weird. but it seems to put a new frame onto the queue
1825 void H264EncoderImpl::storage_task_enqueue(storage_task task)
1827 unique_lock<mutex> lock(storage_task_queue_mutex);
1828 storage_task_queue.push(move(task));
1829 storage_task_queue_changed.notify_all();
1832 void H264EncoderImpl::storage_task_thread()
1835 storage_task current;
1837 // wait until there's an encoded frame
1838 unique_lock<mutex> lock(storage_task_queue_mutex);
1839 storage_task_queue_changed.wait(lock, [this]{ return storage_thread_should_quit || !storage_task_queue.empty(); });
1840 if (storage_thread_should_quit && storage_task_queue.empty()) return;
1841 current = move(storage_task_queue.front());
1842 storage_task_queue.pop();
1847 // waits for data, then saves it to disk.
1848 va_status = vaSyncSurface(va_dpy, gl_surfaces[current.display_order % SURFACE_NUM].src_surface);
1849 CHECK_VASTATUS(va_status, "vaSyncSurface");
1850 save_codeddata(move(current));
1853 unique_lock<mutex> lock(storage_task_queue_mutex);
1854 srcsurface_status[current.display_order % SURFACE_NUM] = SRC_SURFACE_FREE;
1855 storage_task_queue_changed.notify_all();
1860 int H264EncoderImpl::release_encode()
1862 for (unsigned i = 0; i < SURFACE_NUM; i++) {
1863 vaDestroyBuffer(va_dpy, gl_surfaces[i].coded_buf);
1864 vaDestroySurfaces(va_dpy, &gl_surfaces[i].src_surface, 1);
1865 vaDestroySurfaces(va_dpy, &gl_surfaces[i].ref_surface, 1);
1867 if (!use_zerocopy) {
1868 glBindBuffer(GL_PIXEL_PACK_BUFFER, gl_surfaces[i].pbo);
1869 glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
1870 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
1871 glDeleteBuffers(1, &gl_surfaces[i].pbo);
1873 glDeleteTextures(1, &gl_surfaces[i].y_tex);
1874 glDeleteTextures(1, &gl_surfaces[i].cbcr_tex);
1877 vaDestroyContext(va_dpy, context_id);
1878 vaDestroyConfig(va_dpy, config_id);
1883 int H264EncoderImpl::deinit_va()
1885 vaTerminate(va_dpy);
1887 va_close_display(va_dpy);
1894 void init_audio_encoder(const string &codec_name, int bit_rate, AVCodecContext **ctx, AVAudioResampleContext **resampler)
1896 AVCodec *codec_audio = avcodec_find_encoder_by_name(codec_name.c_str());
1897 if (codec_audio == nullptr) {
1898 fprintf(stderr, "ERROR: Could not find codec '%s'\n", codec_name.c_str());
1902 AVCodecContext *context_audio = avcodec_alloc_context3(codec_audio);
1903 context_audio->bit_rate = bit_rate;
1904 context_audio->sample_rate = OUTPUT_FREQUENCY;
1905 context_audio->sample_fmt = codec_audio->sample_fmts[0];
1906 context_audio->channels = 2;
1907 context_audio->channel_layout = AV_CH_LAYOUT_STEREO;
1908 context_audio->time_base = AVRational{1, TIMEBASE};
1909 context_audio->flags |= CODEC_FLAG_GLOBAL_HEADER;
1910 if (avcodec_open2(context_audio, codec_audio, NULL) < 0) {
1911 fprintf(stderr, "Could not open codec '%s'\n", codec_name.c_str());
1915 *ctx = context_audio;
1917 *resampler = avresample_alloc_context();
1918 if (*resampler == nullptr) {
1919 fprintf(stderr, "Allocating resampler failed.\n");
1923 av_opt_set_int(*resampler, "in_channel_layout", AV_CH_LAYOUT_STEREO, 0);
1924 av_opt_set_int(*resampler, "out_channel_layout", AV_CH_LAYOUT_STEREO, 0);
1925 av_opt_set_int(*resampler, "in_sample_rate", OUTPUT_FREQUENCY, 0);
1926 av_opt_set_int(*resampler, "out_sample_rate", OUTPUT_FREQUENCY, 0);
1927 av_opt_set_int(*resampler, "in_sample_fmt", AV_SAMPLE_FMT_FLT, 0);
1928 av_opt_set_int(*resampler, "out_sample_fmt", context_audio->sample_fmt, 0);
1930 if (avresample_open(*resampler) < 0) {
1931 fprintf(stderr, "Could not open resample context.\n");
1938 H264EncoderImpl::H264EncoderImpl(QSurface *surface, const string &va_display, int width, int height, HTTPD *httpd)
1939 : current_storage_frame(0), surface(surface), httpd(httpd), frame_width(width), frame_height(height)
1941 init_audio_encoder(AUDIO_OUTPUT_CODEC_NAME, DEFAULT_AUDIO_OUTPUT_BIT_RATE, &context_audio_file, &resampler_audio_file);
1943 if (!global_flags.stream_audio_codec_name.empty()) {
1944 init_audio_encoder(global_flags.stream_audio_codec_name,
1945 global_flags.stream_audio_codec_bitrate, &context_audio_stream, &resampler_audio_stream);
1948 frame_width_mbaligned = (frame_width + 15) & (~15);
1949 frame_height_mbaligned = (frame_height + 15) & (~15);
1951 open_output_stream();
1953 audio_frame = av_frame_alloc();
1957 if (global_flags.uncompressed_video_to_http ||
1958 global_flags.x264_video_to_http) {
1959 reorderer.reset(new FrameReorderer(ip_period - 1, frame_width, frame_height));
1961 if (global_flags.x264_video_to_http) {
1962 x264_encoder.reset(new X264Encoder(stream_mux.get()));
1965 init_va(va_display);
1968 // No frames are ready yet.
1969 memset(srcsurface_status, SRC_SURFACE_FREE, sizeof(srcsurface_status));
1971 memset(&seq_param, 0, sizeof(seq_param));
1972 memset(&pic_param, 0, sizeof(pic_param));
1973 memset(&slice_param, 0, sizeof(slice_param));
1975 storage_thread = thread(&H264EncoderImpl::storage_task_thread, this);
1977 encode_thread = thread([this]{
1978 //SDL_GL_MakeCurrent(window, context);
1979 QOpenGLContext *context = create_context(this->surface);
1980 eglBindAPI(EGL_OPENGL_API);
1981 if (!make_current(context, this->surface)) {
1982 printf("display=%p surface=%p context=%p curr=%p err=%d\n", eglGetCurrentDisplay(), this->surface, context, eglGetCurrentContext(),
1986 encode_thread_func();
1990 H264EncoderImpl::~H264EncoderImpl()
1993 av_frame_free(&audio_frame);
1994 avresample_free(&resampler_audio_file);
1995 avresample_free(&resampler_audio_stream);
1996 avcodec_free_context(&context_audio_file);
1997 avcodec_free_context(&context_audio_stream);
1998 close_output_stream();
2001 bool H264EncoderImpl::begin_frame(GLuint *y_tex, GLuint *cbcr_tex)
2003 assert(!is_shutdown);
2005 // Wait until this frame slot is done encoding.
2006 unique_lock<mutex> lock(storage_task_queue_mutex);
2007 if (srcsurface_status[current_storage_frame % SURFACE_NUM] != SRC_SURFACE_FREE) {
2008 fprintf(stderr, "Warning: Slot %d (for frame %d) is still encoding, rendering has to wait for H.264 encoder\n",
2009 current_storage_frame % SURFACE_NUM, current_storage_frame);
2011 storage_task_queue_changed.wait(lock, [this]{ return storage_thread_should_quit || (srcsurface_status[current_storage_frame % SURFACE_NUM] == SRC_SURFACE_FREE); });
2012 srcsurface_status[current_storage_frame % SURFACE_NUM] = SRC_SURFACE_IN_ENCODING;
2013 if (storage_thread_should_quit) return false;
2016 //*fbo = fbos[current_storage_frame % SURFACE_NUM];
2017 GLSurface *surf = &gl_surfaces[current_storage_frame % SURFACE_NUM];
2018 *y_tex = surf->y_tex;
2019 *cbcr_tex = surf->cbcr_tex;
2021 VAStatus va_status = vaDeriveImage(va_dpy, surf->src_surface, &surf->surface_image);
2022 CHECK_VASTATUS(va_status, "vaDeriveImage");
2025 VABufferInfo buf_info;
2026 buf_info.mem_type = VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME; // or VA_SURFACE_ATTRIB_MEM_TYPE_KERNEL_DRM?
2027 va_status = vaAcquireBufferHandle(va_dpy, surf->surface_image.buf, &buf_info);
2028 CHECK_VASTATUS(va_status, "vaAcquireBufferHandle");
2031 surf->y_egl_image = EGL_NO_IMAGE_KHR;
2032 EGLint y_attribs[] = {
2033 EGL_WIDTH, frame_width,
2034 EGL_HEIGHT, frame_height,
2035 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('R', '8', ' ', ' '),
2036 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
2037 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[0]),
2038 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[0]),
2042 surf->y_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, y_attribs);
2043 assert(surf->y_egl_image != EGL_NO_IMAGE_KHR);
2045 // Associate Y image to a texture.
2046 glBindTexture(GL_TEXTURE_2D, *y_tex);
2047 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->y_egl_image);
2049 // Create CbCr image.
2050 surf->cbcr_egl_image = EGL_NO_IMAGE_KHR;
2051 EGLint cbcr_attribs[] = {
2052 EGL_WIDTH, frame_width,
2053 EGL_HEIGHT, frame_height,
2054 EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('G', 'R', '8', '8'),
2055 EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
2056 EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[1]),
2057 EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[1]),
2061 surf->cbcr_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, cbcr_attribs);
2062 assert(surf->cbcr_egl_image != EGL_NO_IMAGE_KHR);
2064 // Associate CbCr image to a texture.
2065 glBindTexture(GL_TEXTURE_2D, *cbcr_tex);
2066 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->cbcr_egl_image);
2072 void H264EncoderImpl::add_audio(int64_t pts, vector<float> audio)
2074 assert(!is_shutdown);
2076 unique_lock<mutex> lock(frame_queue_mutex);
2077 pending_audio_frames[pts] = move(audio);
2079 frame_queue_nonempty.notify_all();
2082 RefCountedGLsync H264EncoderImpl::end_frame(int64_t pts, const vector<RefCountedFrame> &input_frames)
2084 assert(!is_shutdown);
2086 if (!use_zerocopy) {
2087 GLSurface *surf = &gl_surfaces[current_storage_frame % SURFACE_NUM];
2089 glPixelStorei(GL_PACK_ROW_LENGTH, 0);
2092 glBindBuffer(GL_PIXEL_PACK_BUFFER, surf->pbo);
2095 glBindTexture(GL_TEXTURE_2D, surf->y_tex);
2097 glGetTexImage(GL_TEXTURE_2D, 0, GL_RED, GL_UNSIGNED_BYTE, BUFFER_OFFSET(surf->y_offset));
2100 glBindTexture(GL_TEXTURE_2D, surf->cbcr_tex);
2102 glGetTexImage(GL_TEXTURE_2D, 0, GL_RG, GL_UNSIGNED_BYTE, BUFFER_OFFSET(surf->cbcr_offset));
2105 glBindTexture(GL_TEXTURE_2D, 0);
2107 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
2110 glMemoryBarrier(GL_TEXTURE_UPDATE_BARRIER_BIT | GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT);
2114 RefCountedGLsync fence = RefCountedGLsync(GL_SYNC_GPU_COMMANDS_COMPLETE, /*flags=*/0);
2116 glFlush(); // Make the H.264 thread see the fence as soon as possible.
2120 unique_lock<mutex> lock(frame_queue_mutex);
2121 pending_video_frames[current_storage_frame] = PendingFrame{ fence, input_frames, pts };
2122 ++current_storage_frame;
2124 frame_queue_nonempty.notify_all();
2128 void H264EncoderImpl::shutdown()
2135 unique_lock<mutex> lock(frame_queue_mutex);
2136 encode_thread_should_quit = true;
2137 frame_queue_nonempty.notify_all();
2139 encode_thread.join();
2140 x264_encoder.reset();
2142 unique_lock<mutex> lock(storage_task_queue_mutex);
2143 storage_thread_should_quit = true;
2144 frame_queue_nonempty.notify_all();
2145 storage_task_queue_changed.notify_all();
2147 storage_thread.join();
2148 encode_remaining_audio();
2155 void H264EncoderImpl::open_output_file(const std::string &filename)
2157 AVFormatContext *avctx = avformat_alloc_context();
2158 avctx->oformat = av_guess_format(NULL, filename.c_str(), NULL);
2159 assert(filename.size() < sizeof(avctx->filename) - 1);
2160 strcpy(avctx->filename, filename.c_str());
2162 string url = "file:" + filename;
2163 int ret = avio_open2(&avctx->pb, url.c_str(), AVIO_FLAG_WRITE, &avctx->interrupt_callback, NULL);
2165 char tmp[AV_ERROR_MAX_STRING_SIZE];
2166 fprintf(stderr, "%s: avio_open2() failed: %s\n", filename.c_str(), av_make_error_string(tmp, sizeof(tmp), ret));
2170 file_mux.reset(new Mux(avctx, frame_width, frame_height, Mux::CODEC_H264, context_audio_file->codec, TIMEBASE, DEFAULT_AUDIO_OUTPUT_BIT_RATE, nullptr));
2173 void H264EncoderImpl::close_output_file()
2178 void H264EncoderImpl::open_output_stream()
2180 AVFormatContext *avctx = avformat_alloc_context();
2181 AVOutputFormat *oformat = av_guess_format(global_flags.stream_mux_name.c_str(), nullptr, nullptr);
2182 assert(oformat != nullptr);
2183 avctx->oformat = oformat;
2188 if (global_flags.stream_audio_codec_name.empty()) {
2189 codec_name = AUDIO_OUTPUT_CODEC_NAME;
2190 bit_rate = DEFAULT_AUDIO_OUTPUT_BIT_RATE;
2192 codec_name = global_flags.stream_audio_codec_name;
2193 bit_rate = global_flags.stream_audio_codec_bitrate;
2196 uint8_t *buf = (uint8_t *)av_malloc(MUX_BUFFER_SIZE);
2197 avctx->pb = avio_alloc_context(buf, MUX_BUFFER_SIZE, 1, this, nullptr, &H264EncoderImpl::write_packet_thunk, nullptr);
2199 Mux::Codec video_codec;
2200 if (global_flags.uncompressed_video_to_http) {
2201 video_codec = Mux::CODEC_NV12;
2203 video_codec = Mux::CODEC_H264;
2206 avctx->flags = AVFMT_FLAG_CUSTOM_IO;
2207 AVCodec *codec_audio = avcodec_find_encoder_by_name(codec_name.c_str());
2208 if (codec_audio == nullptr) {
2209 fprintf(stderr, "ERROR: Could not find codec '%s'\n", codec_name.c_str());
2213 int time_base = global_flags.stream_coarse_timebase ? COARSE_TIMEBASE : TIMEBASE;
2214 stream_mux_writing_header = true;
2215 stream_mux.reset(new Mux(avctx, frame_width, frame_height, video_codec, codec_audio, time_base, bit_rate, this));
2216 stream_mux_writing_header = false;
2217 httpd->set_header(stream_mux_header);
2218 stream_mux_header.clear();
2221 void H264EncoderImpl::close_output_stream()
2226 int H264EncoderImpl::write_packet_thunk(void *opaque, uint8_t *buf, int buf_size)
2228 H264EncoderImpl *h264_encoder = (H264EncoderImpl *)opaque;
2229 return h264_encoder->write_packet(buf, buf_size);
2232 int H264EncoderImpl::write_packet(uint8_t *buf, int buf_size)
2234 if (stream_mux_writing_header) {
2235 stream_mux_header.append((char *)buf, buf_size);
2237 httpd->add_data((char *)buf, buf_size, stream_mux_writing_keyframes);
2238 stream_mux_writing_keyframes = false;
2243 void H264EncoderImpl::encode_thread_func()
2245 int64_t last_dts = -1;
2246 int gop_start_display_frame_num = 0;
2247 for (int encoding_frame_num = 0; ; ++encoding_frame_num) {
2250 int frame_type, display_frame_num;
2251 encoding2display_order(encoding_frame_num, intra_period, intra_idr_period, ip_period,
2252 &display_frame_num, &frame_type, &pts_lag);
2253 if (frame_type == FRAME_IDR) {
2255 current_frame_num = 0;
2256 gop_start_display_frame_num = display_frame_num;
2260 unique_lock<mutex> lock(frame_queue_mutex);
2261 frame_queue_nonempty.wait(lock, [this, display_frame_num]{
2262 return encode_thread_should_quit || pending_video_frames.count(display_frame_num) != 0;
2264 if (encode_thread_should_quit && pending_video_frames.count(display_frame_num) == 0) {
2265 // We have queued frames that were supposed to be B-frames,
2266 // but will be no P-frame to encode them against. Encode them all
2267 // as P-frames instead. Note that this happens under the mutex,
2268 // but nobody else uses it at this point, since we're shutting down,
2269 // so there's no contention.
2270 encode_remaining_frames_as_p(encoding_frame_num, gop_start_display_frame_num, last_dts);
2273 frame = move(pending_video_frames[display_frame_num]);
2274 pending_video_frames.erase(display_frame_num);
2278 // Determine the dts of this frame.
2280 if (pts_lag == -1) {
2281 assert(last_dts != -1);
2282 dts = last_dts + (TIMEBASE / MAX_FPS);
2284 dts = frame.pts - pts_lag;
2288 encode_frame(frame, encoding_frame_num, display_frame_num, gop_start_display_frame_num, frame_type, frame.pts, dts);
2292 void H264EncoderImpl::encode_remaining_frames_as_p(int encoding_frame_num, int gop_start_display_frame_num, int64_t last_dts)
2294 if (pending_video_frames.empty()) {
2298 for (auto &pending_frame : pending_video_frames) {
2299 int display_frame_num = pending_frame.first;
2300 assert(display_frame_num > 0);
2301 PendingFrame frame = move(pending_frame.second);
2302 int64_t dts = last_dts + (TIMEBASE / MAX_FPS);
2303 printf("Finalizing encode: Encoding leftover frame %d as P-frame instead of B-frame.\n", display_frame_num);
2304 encode_frame(frame, encoding_frame_num++, display_frame_num, gop_start_display_frame_num, FRAME_P, frame.pts, dts);
2308 if (global_flags.uncompressed_video_to_http ||
2309 global_flags.x264_video_to_http) {
2310 // Add frames left in reorderer.
2311 while (!reorderer->empty()) {
2312 pair<int64_t, const uint8_t *> output_frame = reorderer->get_first_frame();
2313 if (global_flags.uncompressed_video_to_http) {
2314 add_packet_for_uncompressed_frame(output_frame.first, output_frame.second);
2316 assert(global_flags.x264_video_to_http);
2317 x264_encoder->add_frame(output_frame.first, output_frame.second);
2323 void H264EncoderImpl::encode_remaining_audio()
2325 // This really ought to be empty by now, but just to be sure...
2326 for (auto &pending_frame : pending_audio_frames) {
2327 int64_t audio_pts = pending_frame.first;
2328 vector<float> audio = move(pending_frame.second);
2330 if (context_audio_stream) {
2331 encode_audio(audio, &audio_queue_file, audio_pts, context_audio_file, resampler_audio_file, { file_mux.get() });
2332 encode_audio(audio, &audio_queue_stream, audio_pts, context_audio_stream, resampler_audio_stream, { stream_mux.get() });
2334 encode_audio(audio, &audio_queue_file, audio_pts, context_audio_file, resampler_audio_file, { stream_mux.get(), file_mux.get() });
2336 last_audio_pts = audio_pts + audio.size() * TIMEBASE / (OUTPUT_FREQUENCY * 2);
2338 pending_audio_frames.clear();
2340 // Encode any leftover audio in the queues, and also any delayed frames.
2341 if (context_audio_stream) {
2342 encode_last_audio(&audio_queue_file, last_audio_pts, context_audio_file, resampler_audio_file, { file_mux.get() });
2343 encode_last_audio(&audio_queue_stream, last_audio_pts, context_audio_stream, resampler_audio_stream, { stream_mux.get() });
2345 encode_last_audio(&audio_queue_file, last_audio_pts, context_audio_file, resampler_audio_file, { stream_mux.get(), file_mux.get() });
2349 void H264EncoderImpl::add_packet_for_uncompressed_frame(int64_t pts, const uint8_t *data)
2352 memset(&pkt, 0, sizeof(pkt));
2354 pkt.data = const_cast<uint8_t *>(data);
2355 pkt.size = frame_width * frame_height * 2;
2356 pkt.stream_index = 0;
2357 pkt.flags = AV_PKT_FLAG_KEY;
2358 stream_mux->add_packet(pkt, pts, pts);
2363 void memcpy_with_pitch(uint8_t *dst, const uint8_t *src, size_t src_width, size_t dst_pitch, size_t height)
2365 if (src_width == dst_pitch) {
2366 memcpy(dst, src, src_width * height);
2368 for (size_t y = 0; y < height; ++y) {
2369 const uint8_t *sptr = src + y * src_width;
2370 uint8_t *dptr = dst + y * dst_pitch;
2371 memcpy(dptr, sptr, src_width);
2378 void H264EncoderImpl::encode_frame(H264EncoderImpl::PendingFrame frame, int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num,
2379 int frame_type, int64_t pts, int64_t dts)
2381 // Wait for the GPU to be done with the frame.
2384 sync_status = glClientWaitSync(frame.fence.get(), 0, 1000000000);
2386 } while (sync_status == GL_TIMEOUT_EXPIRED);
2387 assert(sync_status != GL_WAIT_FAILED);
2389 // Release back any input frames we needed to render this frame.
2390 frame.input_frames.clear();
2392 GLSurface *surf = &gl_surfaces[display_frame_num % SURFACE_NUM];
2396 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->y_egl_image);
2397 eglDestroyImageKHR(eglGetCurrentDisplay(), surf->cbcr_egl_image);
2398 va_status = vaReleaseBufferHandle(va_dpy, surf->surface_image.buf);
2399 CHECK_VASTATUS(va_status, "vaReleaseBufferHandle");
2401 unsigned char *surface_p = nullptr;
2402 vaMapBuffer(va_dpy, surf->surface_image.buf, (void **)&surface_p);
2404 unsigned char *va_y_ptr = (unsigned char *)surface_p + surf->surface_image.offsets[0];
2405 memcpy_with_pitch(va_y_ptr, surf->y_ptr, frame_width, surf->surface_image.pitches[0], frame_height);
2407 unsigned char *va_cbcr_ptr = (unsigned char *)surface_p + surf->surface_image.offsets[1];
2408 memcpy_with_pitch(va_cbcr_ptr, surf->cbcr_ptr, (frame_width / 2) * sizeof(uint16_t), surf->surface_image.pitches[1], frame_height / 2);
2410 va_status = vaUnmapBuffer(va_dpy, surf->surface_image.buf);
2411 CHECK_VASTATUS(va_status, "vaUnmapBuffer");
2413 if (global_flags.uncompressed_video_to_http ||
2414 global_flags.x264_video_to_http) {
2415 // Add uncompressed video. (Note that pts == dts here.)
2416 // Delay needs to match audio.
2417 pair<int64_t, const uint8_t *> output_frame = reorderer->reorder_frame(pts + global_delay(), reinterpret_cast<uint8_t *>(surf->y_ptr));
2418 if (output_frame.second != nullptr) {
2419 if (global_flags.uncompressed_video_to_http) {
2420 add_packet_for_uncompressed_frame(output_frame.first, output_frame.second);
2422 assert(global_flags.x264_video_to_http);
2423 x264_encoder->add_frame(output_frame.first, output_frame.second);
2429 va_status = vaDestroyImage(va_dpy, surf->surface_image.image_id);
2430 CHECK_VASTATUS(va_status, "vaDestroyImage");
2432 // Schedule the frame for encoding.
2433 VASurfaceID va_surface = surf->src_surface;
2434 va_status = vaBeginPicture(va_dpy, context_id, va_surface);
2435 CHECK_VASTATUS(va_status, "vaBeginPicture");
2437 if (frame_type == FRAME_IDR) {
2439 render_picture(frame_type, display_frame_num, gop_start_display_frame_num);
2440 if (h264_packedheader) {
2441 render_packedsequence();
2442 render_packedpicture();
2445 //render_sequence();
2446 render_picture(frame_type, display_frame_num, gop_start_display_frame_num);
2448 render_slice(encoding_frame_num, display_frame_num, gop_start_display_frame_num, frame_type);
2450 va_status = vaEndPicture(va_dpy, context_id);
2451 CHECK_VASTATUS(va_status, "vaEndPicture");
2453 // so now the data is done encoding (well, async job kicked off)...
2454 // we send that to the storage thread
2456 tmp.display_order = display_frame_num;
2457 tmp.frame_type = frame_type;
2460 storage_task_enqueue(move(tmp));
2462 update_ReferenceFrames(frame_type);
2466 H264Encoder::H264Encoder(QSurface *surface, const string &va_display, int width, int height, HTTPD *httpd)
2467 : impl(new H264EncoderImpl(surface, va_display, width, height, httpd)) {}
2469 // Must be defined here because unique_ptr<> destructor needs to know the impl.
2470 H264Encoder::~H264Encoder() {}
2472 void H264Encoder::add_audio(int64_t pts, vector<float> audio)
2474 impl->add_audio(pts, audio);
2477 bool H264Encoder::begin_frame(GLuint *y_tex, GLuint *cbcr_tex)
2479 return impl->begin_frame(y_tex, cbcr_tex);
2482 RefCountedGLsync H264Encoder::end_frame(int64_t pts, const vector<RefCountedFrame> &input_frames)
2484 return impl->end_frame(pts, input_frames);
2487 void H264Encoder::shutdown()
2492 void H264Encoder::open_output_file(const std::string &filename)
2494 impl->open_output_file(filename);
2497 void H264Encoder::close_output_file()
2499 impl->close_output_file();