1 /******************************************************************************
2 Copyright (C) 2013-2014 by Hugh Bailey <obs.jim@gmail.com>
3
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 2 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>.
16 ******************************************************************************/
17
18 #pragma once
19
20 #include "util/c99defs.h"
21 #include "util/darray.h"
22 #include "util/circlebuf.h"
23 #include "util/dstr.h"
24 #include "util/threading.h"
25 #include "util/platform.h"
26 #include "util/profiler.h"
27 #include "callback/signal.h"
28 #include "callback/proc.h"
29
30 #include "graphics/graphics.h"
31 #include "graphics/matrix4.h"
32
33 #include "media-io/audio-resampler.h"
34 #include "media-io/video-io.h"
35 #include "media-io/audio-io.h"
36
37 #include "obs.h"
38
39 #include <caption/caption.h>
40
41 #define NUM_TEXTURES 2
42 #define NUM_CHANNELS 3
43 #define MICROSECOND_DEN 1000000
44 #define NUM_ENCODE_TEXTURES 3
45 #define NUM_ENCODE_TEXTURE_FRAMES_TO_WAIT 1
46
packet_dts_usec(struct encoder_packet * packet)47 static inline int64_t packet_dts_usec(struct encoder_packet *packet)
48 {
49 return packet->dts * MICROSECOND_DEN / packet->timebase_den;
50 }
51
52 struct tick_callback {
53 void (*tick)(void *param, float seconds);
54 void *param;
55 };
56
57 struct draw_callback {
58 void (*draw)(void *param, uint32_t cx, uint32_t cy);
59 void *param;
60 };
61
62 /* ------------------------------------------------------------------------- */
63 /* validity checks */
64
obs_object_valid(const void * obj,const char * f,const char * t)65 static inline bool obs_object_valid(const void *obj, const char *f,
66 const char *t)
67 {
68 if (!obj) {
69 blog(LOG_DEBUG, "%s: Null '%s' parameter", f, t);
70 return false;
71 }
72
73 return true;
74 }
75
76 #define obs_ptr_valid(ptr, func) obs_object_valid(ptr, func, #ptr)
77 #define obs_source_valid obs_ptr_valid
78 #define obs_output_valid obs_ptr_valid
79 #define obs_encoder_valid obs_ptr_valid
80 #define obs_service_valid obs_ptr_valid
81
82 /* ------------------------------------------------------------------------- */
83 /* modules */
84
85 struct obs_module {
86 char *mod_name;
87 const char *file;
88 char *bin_path;
89 char *data_path;
90 void *module;
91 bool loaded;
92
93 bool (*load)(void);
94 void (*unload)(void);
95 void (*post_load)(void);
96 void (*set_locale)(const char *locale);
97 bool (*get_string)(const char *lookup_string,
98 const char **translated_string);
99 void (*free_locale)(void);
100 uint32_t (*ver)(void);
101 void (*set_pointer)(obs_module_t *module);
102 const char *(*name)(void);
103 const char *(*description)(void);
104 const char *(*author)(void);
105
106 struct obs_module *next;
107 };
108
109 extern void free_module(struct obs_module *mod);
110
111 struct obs_module_path {
112 char *bin;
113 char *data;
114 };
115
free_module_path(struct obs_module_path * omp)116 static inline void free_module_path(struct obs_module_path *omp)
117 {
118 if (omp) {
119 bfree(omp->bin);
120 bfree(omp->data);
121 }
122 }
123
check_path(const char * data,const char * path,struct dstr * output)124 static inline bool check_path(const char *data, const char *path,
125 struct dstr *output)
126 {
127 dstr_copy(output, path);
128 dstr_cat(output, data);
129
130 return os_file_exists(output->array);
131 }
132
133 /* ------------------------------------------------------------------------- */
134 /* hotkeys */
135
136 struct obs_hotkey {
137 obs_hotkey_id id;
138 char *name;
139 char *description;
140
141 obs_hotkey_func func;
142 void *data;
143 int pressed;
144
145 obs_hotkey_registerer_t registerer_type;
146 void *registerer;
147
148 obs_hotkey_id pair_partner_id;
149 };
150
151 struct obs_hotkey_pair {
152 obs_hotkey_pair_id pair_id;
153 obs_hotkey_id id[2];
154 obs_hotkey_active_func func[2];
155 bool pressed0;
156 bool pressed1;
157 void *data[2];
158 };
159
160 typedef struct obs_hotkey_pair obs_hotkey_pair_t;
161
162 typedef struct obs_hotkeys_platform obs_hotkeys_platform_t;
163
164 void *obs_hotkey_thread(void *param);
165
166 struct obs_core_hotkeys;
167 bool obs_hotkeys_platform_init(struct obs_core_hotkeys *hotkeys);
168 void obs_hotkeys_platform_free(struct obs_core_hotkeys *hotkeys);
169 bool obs_hotkeys_platform_is_pressed(obs_hotkeys_platform_t *context,
170 obs_key_t key);
171
172 const char *obs_get_hotkey_translation(obs_key_t key, const char *def);
173
174 struct obs_context_data;
175 void obs_hotkeys_context_release(struct obs_context_data *context);
176
177 void obs_hotkeys_free(void);
178
179 struct obs_hotkey_binding {
180 obs_key_combination_t key;
181 bool pressed;
182 bool modifiers_match;
183
184 obs_hotkey_id hotkey_id;
185 obs_hotkey_t *hotkey;
186 };
187
188 struct obs_hotkey_name_map;
189 void obs_hotkey_name_map_free(void);
190
191 /* ------------------------------------------------------------------------- */
192 /* views */
193
194 struct obs_view {
195 pthread_mutex_t channels_mutex;
196 obs_source_t *channels[MAX_CHANNELS];
197 };
198
199 extern bool obs_view_init(struct obs_view *view);
200 extern void obs_view_free(struct obs_view *view);
201
202 /* ------------------------------------------------------------------------- */
203 /* displays */
204
205 struct obs_display {
206 bool size_changed;
207 bool enabled;
208 uint32_t cx, cy;
209 uint32_t background_color;
210 gs_swapchain_t *swap;
211 pthread_mutex_t draw_callbacks_mutex;
212 pthread_mutex_t draw_info_mutex;
213 DARRAY(struct draw_callback) draw_callbacks;
214
215 struct obs_display *next;
216 struct obs_display **prev_next;
217 };
218
219 extern bool obs_display_init(struct obs_display *display,
220 const struct gs_init_data *graphics_data);
221 extern void obs_display_free(struct obs_display *display);
222
223 /* ------------------------------------------------------------------------- */
224 /* core */
225
226 struct obs_vframe_info {
227 uint64_t timestamp;
228 int count;
229 };
230
231 struct obs_tex_frame {
232 gs_texture_t *tex;
233 gs_texture_t *tex_uv;
234 uint32_t handle;
235 uint64_t timestamp;
236 uint64_t lock_key;
237 int count;
238 bool released;
239 };
240
241 struct obs_task_info {
242 obs_task_t task;
243 void *param;
244 };
245
246 struct obs_core_video {
247 graphics_t *graphics;
248 gs_stagesurf_t *copy_surfaces[NUM_TEXTURES][NUM_CHANNELS];
249 gs_texture_t *render_texture;
250 gs_texture_t *output_texture;
251 gs_texture_t *convert_textures[NUM_CHANNELS];
252 bool texture_rendered;
253 bool textures_copied[NUM_TEXTURES];
254 bool texture_converted;
255 bool using_nv12_tex;
256 struct circlebuf vframe_info_buffer;
257 struct circlebuf vframe_info_buffer_gpu;
258 gs_effect_t *default_effect;
259 gs_effect_t *default_rect_effect;
260 gs_effect_t *opaque_effect;
261 gs_effect_t *solid_effect;
262 gs_effect_t *repeat_effect;
263 gs_effect_t *conversion_effect;
264 gs_effect_t *bicubic_effect;
265 gs_effect_t *lanczos_effect;
266 gs_effect_t *area_effect;
267 gs_effect_t *bilinear_lowres_effect;
268 gs_effect_t *premultiplied_alpha_effect;
269 gs_samplerstate_t *point_sampler;
270 gs_stagesurf_t *mapped_surfaces[NUM_CHANNELS];
271 int cur_texture;
272 long raw_active;
273 long gpu_encoder_active;
274 pthread_mutex_t gpu_encoder_mutex;
275 struct circlebuf gpu_encoder_queue;
276 struct circlebuf gpu_encoder_avail_queue;
277 DARRAY(obs_encoder_t *) gpu_encoders;
278 os_sem_t *gpu_encode_semaphore;
279 os_event_t *gpu_encode_inactive;
280 pthread_t gpu_encode_thread;
281 bool gpu_encode_thread_initialized;
282 volatile bool gpu_encode_stop;
283
284 uint64_t video_time;
285 uint64_t video_frame_interval_ns;
286 uint64_t video_avg_frame_time_ns;
287 double video_fps;
288 video_t *video;
289 pthread_t video_thread;
290 uint32_t total_frames;
291 uint32_t lagged_frames;
292 bool thread_initialized;
293
294 bool gpu_conversion;
295 const char *conversion_techs[NUM_CHANNELS];
296 bool conversion_needed;
297 float conversion_width_i;
298
299 uint32_t output_width;
300 uint32_t output_height;
301 uint32_t base_width;
302 uint32_t base_height;
303 float color_matrix[16];
304 enum obs_scale_type scale_type;
305
306 gs_texture_t *transparent_texture;
307
308 gs_effect_t *deinterlace_discard_effect;
309 gs_effect_t *deinterlace_discard_2x_effect;
310 gs_effect_t *deinterlace_linear_effect;
311 gs_effect_t *deinterlace_linear_2x_effect;
312 gs_effect_t *deinterlace_blend_effect;
313 gs_effect_t *deinterlace_blend_2x_effect;
314 gs_effect_t *deinterlace_yadif_effect;
315 gs_effect_t *deinterlace_yadif_2x_effect;
316
317 struct obs_video_info ovi;
318
319 pthread_mutex_t task_mutex;
320 struct circlebuf tasks;
321 };
322
323 struct audio_monitor;
324
325 struct obs_core_audio {
326 audio_t *audio;
327
328 DARRAY(struct obs_source *) render_order;
329 DARRAY(struct obs_source *) root_nodes;
330
331 uint64_t buffered_ts;
332 struct circlebuf buffered_timestamps;
333 uint64_t buffering_wait_ticks;
334 int total_buffering_ticks;
335
336 float user_volume;
337
338 pthread_mutex_t monitoring_mutex;
339 DARRAY(struct audio_monitor *) monitors;
340 char *monitoring_device_name;
341 char *monitoring_device_id;
342 };
343
344 /* user sources, output channels, and displays */
345 struct obs_core_data {
346 struct obs_source *first_source;
347 struct obs_source *first_audio_source;
348 struct obs_display *first_display;
349 struct obs_output *first_output;
350 struct obs_encoder *first_encoder;
351 struct obs_service *first_service;
352
353 pthread_mutex_t sources_mutex;
354 pthread_mutex_t displays_mutex;
355 pthread_mutex_t outputs_mutex;
356 pthread_mutex_t encoders_mutex;
357 pthread_mutex_t services_mutex;
358 pthread_mutex_t audio_sources_mutex;
359 pthread_mutex_t draw_callbacks_mutex;
360 DARRAY(struct draw_callback) draw_callbacks;
361 DARRAY(struct tick_callback) tick_callbacks;
362
363 struct obs_view main_view;
364
365 long long unnamed_index;
366
367 obs_data_t *private_data;
368
369 volatile bool valid;
370 };
371
372 /* user hotkeys */
373 struct obs_core_hotkeys {
374 pthread_mutex_t mutex;
375 DARRAY(obs_hotkey_t) hotkeys;
376 obs_hotkey_id next_id;
377 DARRAY(obs_hotkey_pair_t) hotkey_pairs;
378 obs_hotkey_pair_id next_pair_id;
379
380 pthread_t hotkey_thread;
381 bool hotkey_thread_initialized;
382 os_event_t *stop_event;
383 bool thread_disable_press;
384 bool strict_modifiers;
385 bool reroute_hotkeys;
386 DARRAY(obs_hotkey_binding_t) bindings;
387
388 obs_hotkey_callback_router_func router_func;
389 void *router_func_data;
390
391 obs_hotkeys_platform_t *platform_context;
392
393 pthread_once_t name_map_init_token;
394 struct obs_hotkey_name_map *name_map;
395
396 signal_handler_t *signals;
397
398 char *translations[OBS_KEY_LAST_VALUE];
399 char *mute;
400 char *unmute;
401 char *push_to_mute;
402 char *push_to_talk;
403 char *sceneitem_show;
404 char *sceneitem_hide;
405 };
406
407 struct obs_core {
408 struct obs_module *first_module;
409 DARRAY(struct obs_module_path) module_paths;
410
411 DARRAY(struct obs_source_info) source_types;
412 DARRAY(struct obs_source_info) input_types;
413 DARRAY(struct obs_source_info) filter_types;
414 DARRAY(struct obs_source_info) transition_types;
415 DARRAY(struct obs_output_info) output_types;
416 DARRAY(struct obs_encoder_info) encoder_types;
417 DARRAY(struct obs_service_info) service_types;
418 DARRAY(struct obs_modal_ui) modal_ui_callbacks;
419 DARRAY(struct obs_modeless_ui) modeless_ui_callbacks;
420
421 signal_handler_t *signals;
422 proc_handler_t *procs;
423
424 char *locale;
425 char *module_config_path;
426 bool name_store_owned;
427 profiler_name_store_t *name_store;
428
429 /* segmented into multiple sub-structures to keep things a bit more
430 * clean and organized */
431 struct obs_core_video video;
432 struct obs_core_audio audio;
433 struct obs_core_data data;
434 struct obs_core_hotkeys hotkeys;
435
436 obs_task_handler_t ui_task_handler;
437 };
438
439 extern struct obs_core *obs;
440
441 struct obs_graphics_context {
442 uint64_t last_time;
443 uint64_t interval;
444 uint64_t frame_time_total_ns;
445 uint64_t fps_total_ns;
446 uint32_t fps_total_frames;
447 #ifdef _WIN32
448 bool gpu_was_active;
449 #endif
450 bool raw_was_active;
451 bool was_active;
452 const char *video_thread_name;
453 };
454
455 extern void *obs_graphics_thread(void *param);
456 extern bool obs_graphics_thread_loop(struct obs_graphics_context *context);
457 #ifdef __APPLE__
458 extern void *obs_graphics_thread_autorelease(void *param);
459 extern bool
460 obs_graphics_thread_loop_autorelease(struct obs_graphics_context *context);
461 #endif
462
463 extern gs_effect_t *obs_load_effect(gs_effect_t **effect, const char *file);
464
465 extern bool audio_callback(void *param, uint64_t start_ts_in,
466 uint64_t end_ts_in, uint64_t *out_ts,
467 uint32_t mixers, struct audio_output_data *mixes);
468
469 extern void
470 start_raw_video(video_t *video, const struct video_scale_info *conversion,
471 void (*callback)(void *param, struct video_data *frame),
472 void *param);
473 extern void stop_raw_video(video_t *video,
474 void (*callback)(void *param,
475 struct video_data *frame),
476 void *param);
477
478 /* ------------------------------------------------------------------------- */
479 /* obs shared context data */
480
481 struct obs_context_data {
482 char *name;
483 void *data;
484 obs_data_t *settings;
485 signal_handler_t *signals;
486 proc_handler_t *procs;
487 enum obs_obj_type type;
488
489 DARRAY(obs_hotkey_id) hotkeys;
490 DARRAY(obs_hotkey_pair_id) hotkey_pairs;
491 obs_data_t *hotkey_data;
492
493 DARRAY(char *) rename_cache;
494 pthread_mutex_t rename_cache_mutex;
495
496 pthread_mutex_t *mutex;
497 struct obs_context_data *next;
498 struct obs_context_data **prev_next;
499
500 bool private;
501 };
502
503 extern bool obs_context_data_init(struct obs_context_data *context,
504 enum obs_obj_type type, obs_data_t *settings,
505 const char *name, obs_data_t *hotkey_data,
506 bool private);
507 extern void obs_context_data_free(struct obs_context_data *context);
508
509 extern void obs_context_data_insert(struct obs_context_data *context,
510 pthread_mutex_t *mutex, void *first);
511 extern void obs_context_data_remove(struct obs_context_data *context);
512
513 extern void obs_context_data_setname(struct obs_context_data *context,
514 const char *name);
515
516 /* ------------------------------------------------------------------------- */
517 /* ref-counting */
518
519 struct obs_weak_ref {
520 volatile long refs;
521 volatile long weak_refs;
522 };
523
obs_ref_addref(struct obs_weak_ref * ref)524 static inline void obs_ref_addref(struct obs_weak_ref *ref)
525 {
526 os_atomic_inc_long(&ref->refs);
527 }
528
obs_ref_release(struct obs_weak_ref * ref)529 static inline bool obs_ref_release(struct obs_weak_ref *ref)
530 {
531 return os_atomic_dec_long(&ref->refs) == -1;
532 }
533
obs_weak_ref_addref(struct obs_weak_ref * ref)534 static inline void obs_weak_ref_addref(struct obs_weak_ref *ref)
535 {
536 os_atomic_inc_long(&ref->weak_refs);
537 }
538
obs_weak_ref_release(struct obs_weak_ref * ref)539 static inline bool obs_weak_ref_release(struct obs_weak_ref *ref)
540 {
541 return os_atomic_dec_long(&ref->weak_refs) == -1;
542 }
543
obs_weak_ref_get_ref(struct obs_weak_ref * ref)544 static inline bool obs_weak_ref_get_ref(struct obs_weak_ref *ref)
545 {
546 long owners = os_atomic_load_long(&ref->refs);
547 while (owners > -1) {
548 if (os_atomic_compare_exchange_long(&ref->refs, &owners,
549 owners + 1)) {
550 return true;
551 }
552 }
553
554 return false;
555 }
556
557 /* ------------------------------------------------------------------------- */
558 /* sources */
559
560 struct async_frame {
561 struct obs_source_frame *frame;
562 long unused_count;
563 bool used;
564 };
565
566 enum audio_action_type {
567 AUDIO_ACTION_VOL,
568 AUDIO_ACTION_MUTE,
569 AUDIO_ACTION_PTT,
570 AUDIO_ACTION_PTM,
571 };
572
573 struct audio_action {
574 uint64_t timestamp;
575 enum audio_action_type type;
576 union {
577 float vol;
578 bool set;
579 };
580 };
581
582 struct obs_weak_source {
583 struct obs_weak_ref ref;
584 struct obs_source *source;
585 };
586
587 struct audio_cb_info {
588 obs_source_audio_capture_t callback;
589 void *param;
590 };
591
592 struct caption_cb_info {
593 obs_source_caption_t callback;
594 void *param;
595 };
596
597 struct obs_source {
598 struct obs_context_data context;
599 struct obs_source_info info;
600 struct obs_weak_source *control;
601
602 /* general exposed flags that can be set for the source */
603 uint32_t flags;
604 uint32_t default_flags;
605 uint32_t last_obs_ver;
606
607 /* indicates ownership of the info.id buffer */
608 bool owns_info_id;
609
610 /* signals to call the source update in the video thread */
611 long defer_update_count;
612
613 /* ensures show/hide are only called once */
614 volatile long show_refs;
615
616 /* ensures activate/deactivate are only called once */
617 volatile long activate_refs;
618
619 /* used to indicate that the source has been removed and all
620 * references to it should be released (not exactly how I would prefer
621 * to handle things but it's the best option) */
622 bool removed;
623
624 /* used to indicate if the source should show up when queried for user ui */
625 bool temp_removed;
626
627 bool active;
628 bool showing;
629
630 /* used to temporarily disable sources if needed */
631 bool enabled;
632
633 /* hint to allow sources to render more quickly */
634 bool texcoords_centered;
635
636 /* timing (if video is present, is based upon video) */
637 volatile bool timing_set;
638 volatile uint64_t timing_adjust;
639 uint64_t resample_offset;
640 uint64_t last_audio_ts;
641 uint64_t next_audio_ts_min;
642 uint64_t next_audio_sys_ts_min;
643 uint64_t last_frame_ts;
644 uint64_t last_sys_timestamp;
645 bool async_rendered;
646
647 /* audio */
648 bool audio_failed;
649 bool audio_pending;
650 bool pending_stop;
651 bool audio_active;
652 bool user_muted;
653 bool muted;
654 struct obs_source *next_audio_source;
655 struct obs_source **prev_next_audio_source;
656 uint64_t audio_ts;
657 struct circlebuf audio_input_buf[MAX_AUDIO_CHANNELS];
658 size_t last_audio_input_buf_size;
659 DARRAY(struct audio_action) audio_actions;
660 float *audio_output_buf[MAX_AUDIO_MIXES][MAX_AUDIO_CHANNELS];
661 float *audio_mix_buf[MAX_AUDIO_CHANNELS];
662 struct resample_info sample_info;
663 audio_resampler_t *resampler;
664 pthread_mutex_t audio_actions_mutex;
665 pthread_mutex_t audio_buf_mutex;
666 pthread_mutex_t audio_mutex;
667 pthread_mutex_t audio_cb_mutex;
668 DARRAY(struct audio_cb_info) audio_cb_list;
669 struct obs_audio_data audio_data;
670 size_t audio_storage_size;
671 uint32_t audio_mixers;
672 float user_volume;
673 float volume;
674 int64_t sync_offset;
675 int64_t last_sync_offset;
676 float balance;
677
678 /* async video data */
679 gs_texture_t *async_textures[MAX_AV_PLANES];
680 gs_texrender_t *async_texrender;
681 struct obs_source_frame *cur_async_frame;
682 bool async_gpu_conversion;
683 enum video_format async_format;
684 bool async_full_range;
685 enum video_format async_cache_format;
686 bool async_cache_full_range;
687 enum gs_color_format async_texture_formats[MAX_AV_PLANES];
688 int async_channel_count;
689 long async_rotation;
690 bool async_flip;
691 bool async_linear_alpha;
692 bool async_active;
693 bool async_update_texture;
694 bool async_unbuffered;
695 bool async_decoupled;
696 struct obs_source_frame *async_preload_frame;
697 DARRAY(struct async_frame) async_cache;
698 DARRAY(struct obs_source_frame *) async_frames;
699 pthread_mutex_t async_mutex;
700 uint32_t async_width;
701 uint32_t async_height;
702 uint32_t async_cache_width;
703 uint32_t async_cache_height;
704 uint32_t async_convert_width[MAX_AV_PLANES];
705 uint32_t async_convert_height[MAX_AV_PLANES];
706
707 pthread_mutex_t caption_cb_mutex;
708 DARRAY(struct caption_cb_info) caption_cb_list;
709
710 /* async video deinterlacing */
711 uint64_t deinterlace_offset;
712 uint64_t deinterlace_frame_ts;
713 gs_effect_t *deinterlace_effect;
714 struct obs_source_frame *prev_async_frame;
715 gs_texture_t *async_prev_textures[MAX_AV_PLANES];
716 gs_texrender_t *async_prev_texrender;
717 uint32_t deinterlace_half_duration;
718 enum obs_deinterlace_mode deinterlace_mode;
719 bool deinterlace_top_first;
720 bool deinterlace_rendered;
721
722 /* filters */
723 struct obs_source *filter_parent;
724 struct obs_source *filter_target;
725 DARRAY(struct obs_source *) filters;
726 pthread_mutex_t filter_mutex;
727 gs_texrender_t *filter_texrender;
728 enum obs_allow_direct_render allow_direct;
729 bool rendering_filter;
730
731 /* sources specific hotkeys */
732 obs_hotkey_pair_id mute_unmute_key;
733 obs_hotkey_id push_to_mute_key;
734 obs_hotkey_id push_to_talk_key;
735 bool push_to_mute_enabled;
736 bool push_to_mute_pressed;
737 bool user_push_to_mute_pressed;
738 bool push_to_talk_enabled;
739 bool push_to_talk_pressed;
740 bool user_push_to_talk_pressed;
741 uint64_t push_to_mute_delay;
742 uint64_t push_to_mute_stop_time;
743 uint64_t push_to_talk_delay;
744 uint64_t push_to_talk_stop_time;
745
746 /* transitions */
747 uint64_t transition_start_time;
748 uint64_t transition_duration;
749 pthread_mutex_t transition_tex_mutex;
750 gs_texrender_t *transition_texrender[2];
751 pthread_mutex_t transition_mutex;
752 obs_source_t *transition_sources[2];
753 float transition_manual_clamp;
754 float transition_manual_torque;
755 float transition_manual_target;
756 float transition_manual_val;
757 bool transitioning_video;
758 bool transitioning_audio;
759 bool transition_source_active[2];
760 uint32_t transition_alignment;
761 uint32_t transition_actual_cx;
762 uint32_t transition_actual_cy;
763 uint32_t transition_cx;
764 uint32_t transition_cy;
765 uint32_t transition_fixed_duration;
766 bool transition_use_fixed_duration;
767 enum obs_transition_mode transition_mode;
768 enum obs_transition_scale_type transition_scale_type;
769 struct matrix4 transition_matrices[2];
770
771 struct audio_monitor *monitor;
772 enum obs_monitoring_type monitoring_type;
773
774 obs_data_t *private_settings;
775 };
776
777 extern struct obs_source_info *get_source_info(const char *id);
778 extern struct obs_source_info *get_source_info2(const char *unversioned_id,
779 uint32_t ver);
780 extern bool obs_source_init_context(struct obs_source *source,
781 obs_data_t *settings, const char *name,
782 obs_data_t *hotkey_data, bool private);
783
784 extern bool obs_transition_init(obs_source_t *transition);
785 extern void obs_transition_free(obs_source_t *transition);
786 extern void obs_transition_tick(obs_source_t *transition, float t);
787 extern void obs_transition_enum_sources(obs_source_t *transition,
788 obs_source_enum_proc_t enum_callback,
789 void *param);
790 extern void obs_transition_save(obs_source_t *source, obs_data_t *data);
791 extern void obs_transition_load(obs_source_t *source, obs_data_t *data);
792
793 struct audio_monitor *audio_monitor_create(obs_source_t *source);
794 void audio_monitor_reset(struct audio_monitor *monitor);
795 extern void audio_monitor_destroy(struct audio_monitor *monitor);
796
797 extern obs_source_t *obs_source_create_set_last_ver(const char *id,
798 const char *name,
799 obs_data_t *settings,
800 obs_data_t *hotkey_data,
801 uint32_t last_obs_ver);
802 extern void obs_source_destroy(struct obs_source *source);
803
804 enum view_type {
805 MAIN_VIEW,
806 AUX_VIEW,
807 };
808
obs_source_dosignal(struct obs_source * source,const char * signal_obs,const char * signal_source)809 static inline void obs_source_dosignal(struct obs_source *source,
810 const char *signal_obs,
811 const char *signal_source)
812 {
813 struct calldata data;
814 uint8_t stack[128];
815
816 calldata_init_fixed(&data, stack, sizeof(stack));
817 calldata_set_ptr(&data, "source", source);
818 if (signal_obs && !source->context.private)
819 signal_handler_signal(obs->signals, signal_obs, &data);
820 if (signal_source)
821 signal_handler_signal(source->context.signals, signal_source,
822 &data);
823 }
824
825 /* maximum timestamp variance in nanoseconds */
826 #define MAX_TS_VAR 2000000000ULL
827
frame_out_of_bounds(const obs_source_t * source,uint64_t ts)828 static inline bool frame_out_of_bounds(const obs_source_t *source, uint64_t ts)
829 {
830 if (ts < source->last_frame_ts)
831 return ((source->last_frame_ts - ts) > MAX_TS_VAR);
832 else
833 return ((ts - source->last_frame_ts) > MAX_TS_VAR);
834 }
835
836 static inline enum gs_color_format
convert_video_format(enum video_format format)837 convert_video_format(enum video_format format)
838 {
839 switch (format) {
840 case VIDEO_FORMAT_RGBA:
841 return GS_RGBA;
842 case VIDEO_FORMAT_BGRA:
843 case VIDEO_FORMAT_I40A:
844 case VIDEO_FORMAT_I42A:
845 case VIDEO_FORMAT_YUVA:
846 case VIDEO_FORMAT_AYUV:
847 return GS_BGRA;
848 default:
849 return GS_BGRX;
850 }
851 }
852
853 extern void obs_source_set_texcoords_centered(obs_source_t *source,
854 bool centered);
855 extern void obs_source_activate(obs_source_t *source, enum view_type type);
856 extern void obs_source_deactivate(obs_source_t *source, enum view_type type);
857 extern void obs_source_video_tick(obs_source_t *source, float seconds);
858 extern float obs_source_get_target_volume(obs_source_t *source,
859 obs_source_t *target);
860
861 extern void obs_source_audio_render(obs_source_t *source, uint32_t mixers,
862 size_t channels, size_t sample_rate,
863 size_t size);
864
865 extern void add_alignment(struct vec2 *v, uint32_t align, int cx, int cy);
866
867 extern struct obs_source_frame *filter_async_video(obs_source_t *source,
868 struct obs_source_frame *in);
869 extern bool update_async_texture(struct obs_source *source,
870 const struct obs_source_frame *frame,
871 gs_texture_t *tex, gs_texrender_t *texrender);
872 extern bool update_async_textures(struct obs_source *source,
873 const struct obs_source_frame *frame,
874 gs_texture_t *tex[MAX_AV_PLANES],
875 gs_texrender_t *texrender);
876 extern bool set_async_texture_size(struct obs_source *source,
877 const struct obs_source_frame *frame);
878 extern void remove_async_frame(obs_source_t *source,
879 struct obs_source_frame *frame);
880
881 extern void set_deinterlace_texture_size(obs_source_t *source);
882 extern void deinterlace_process_last_frame(obs_source_t *source,
883 uint64_t sys_time);
884 extern void deinterlace_update_async_video(obs_source_t *source);
885 extern void deinterlace_render(obs_source_t *s);
886
887 /* ------------------------------------------------------------------------- */
888 /* outputs */
889
890 enum delay_msg {
891 DELAY_MSG_PACKET,
892 DELAY_MSG_START,
893 DELAY_MSG_STOP,
894 };
895
896 struct delay_data {
897 enum delay_msg msg;
898 uint64_t ts;
899 struct encoder_packet packet;
900 };
901
902 typedef void (*encoded_callback_t)(void *data, struct encoder_packet *packet);
903
904 struct obs_weak_output {
905 struct obs_weak_ref ref;
906 struct obs_output *output;
907 };
908
909 #define CAPTION_LINE_CHARS (32)
910 #define CAPTION_LINE_BYTES (4 * CAPTION_LINE_CHARS)
911 struct caption_text {
912 char text[CAPTION_LINE_BYTES + 1];
913 double display_duration;
914 struct caption_text *next;
915 };
916
917 struct pause_data {
918 pthread_mutex_t mutex;
919 uint64_t last_video_ts;
920 uint64_t ts_start;
921 uint64_t ts_end;
922 uint64_t ts_offset;
923 };
924
925 extern bool video_pause_check(struct pause_data *pause, uint64_t timestamp);
926 extern bool audio_pause_check(struct pause_data *pause, struct audio_data *data,
927 size_t sample_rate);
928 extern void pause_reset(struct pause_data *pause);
929
930 struct obs_output {
931 struct obs_context_data context;
932 struct obs_output_info info;
933 struct obs_weak_output *control;
934
935 /* indicates ownership of the info.id buffer */
936 bool owns_info_id;
937
938 bool received_video;
939 bool received_audio;
940 volatile bool data_active;
941 volatile bool end_data_capture_thread_active;
942 int64_t video_offset;
943 int64_t audio_offsets[MAX_AUDIO_MIXES];
944 int64_t highest_audio_ts;
945 int64_t highest_video_ts;
946 pthread_t end_data_capture_thread;
947 os_event_t *stopping_event;
948 pthread_mutex_t interleaved_mutex;
949 DARRAY(struct encoder_packet) interleaved_packets;
950 int stop_code;
951
952 int reconnect_retry_sec;
953 int reconnect_retry_max;
954 int reconnect_retries;
955 int reconnect_retry_cur_sec;
956 pthread_t reconnect_thread;
957 os_event_t *reconnect_stop_event;
958 volatile bool reconnecting;
959 volatile bool reconnect_thread_active;
960
961 uint32_t starting_drawn_count;
962 uint32_t starting_lagged_count;
963 uint32_t starting_frame_count;
964
965 int total_frames;
966
967 volatile bool active;
968 volatile bool paused;
969 video_t *video;
970 audio_t *audio;
971 obs_encoder_t *video_encoder;
972 obs_encoder_t *audio_encoders[MAX_AUDIO_MIXES];
973 obs_service_t *service;
974 size_t mixer_mask;
975
976 struct pause_data pause;
977
978 struct circlebuf audio_buffer[MAX_AUDIO_MIXES][MAX_AV_PLANES];
979 uint64_t audio_start_ts;
980 uint64_t video_start_ts;
981 size_t audio_size;
982 size_t planes;
983 size_t sample_rate;
984 size_t total_audio_frames;
985
986 uint32_t scaled_width;
987 uint32_t scaled_height;
988
989 bool video_conversion_set;
990 bool audio_conversion_set;
991 struct video_scale_info video_conversion;
992 struct audio_convert_info audio_conversion;
993
994 pthread_mutex_t caption_mutex;
995 double caption_timestamp;
996 struct caption_text *caption_head;
997 struct caption_text *caption_tail;
998
999 struct circlebuf caption_data;
1000
1001 bool valid;
1002
1003 uint64_t active_delay_ns;
1004 encoded_callback_t delay_callback;
1005 struct circlebuf delay_data; /* struct delay_data */
1006 pthread_mutex_t delay_mutex;
1007 uint32_t delay_sec;
1008 uint32_t delay_flags;
1009 uint32_t delay_cur_flags;
1010 volatile long delay_restart_refs;
1011 volatile bool delay_active;
1012 volatile bool delay_capturing;
1013
1014 char *last_error_message;
1015
1016 float audio_data[MAX_AUDIO_CHANNELS][AUDIO_OUTPUT_FRAMES];
1017 };
1018
do_output_signal(struct obs_output * output,const char * signal)1019 static inline void do_output_signal(struct obs_output *output,
1020 const char *signal)
1021 {
1022 struct calldata params = {0};
1023 calldata_set_ptr(¶ms, "output", output);
1024 signal_handler_signal(output->context.signals, signal, ¶ms);
1025 calldata_free(¶ms);
1026 }
1027
1028 extern void process_delay(void *data, struct encoder_packet *packet);
1029 extern void obs_output_cleanup_delay(obs_output_t *output);
1030 extern bool obs_output_delay_start(obs_output_t *output);
1031 extern void obs_output_delay_stop(obs_output_t *output);
1032 extern bool obs_output_actual_start(obs_output_t *output);
1033 extern void obs_output_actual_stop(obs_output_t *output, bool force,
1034 uint64_t ts);
1035
1036 extern const struct obs_output_info *find_output(const char *id);
1037
1038 extern void obs_output_remove_encoder(struct obs_output *output,
1039 struct obs_encoder *encoder);
1040
1041 extern void
1042 obs_encoder_packet_create_instance(struct encoder_packet *dst,
1043 const struct encoder_packet *src);
1044 void obs_output_destroy(obs_output_t *output);
1045
1046 /* ------------------------------------------------------------------------- */
1047 /* encoders */
1048
1049 struct obs_weak_encoder {
1050 struct obs_weak_ref ref;
1051 struct obs_encoder *encoder;
1052 };
1053
1054 struct encoder_callback {
1055 bool sent_first_packet;
1056 void (*new_packet)(void *param, struct encoder_packet *packet);
1057 void *param;
1058 };
1059
1060 struct obs_encoder {
1061 struct obs_context_data context;
1062 struct obs_encoder_info info;
1063 struct obs_weak_encoder *control;
1064
1065 /* allows re-routing to another encoder */
1066 struct obs_encoder_info orig_info;
1067
1068 pthread_mutex_t init_mutex;
1069
1070 uint32_t samplerate;
1071 size_t planes;
1072 size_t blocksize;
1073 size_t framesize;
1074 size_t framesize_bytes;
1075
1076 size_t mixer_idx;
1077
1078 uint32_t scaled_width;
1079 uint32_t scaled_height;
1080 enum video_format preferred_format;
1081
1082 volatile bool active;
1083 volatile bool paused;
1084 bool initialized;
1085
1086 /* indicates ownership of the info.id buffer */
1087 bool owns_info_id;
1088
1089 uint32_t timebase_num;
1090 uint32_t timebase_den;
1091
1092 int64_t cur_pts;
1093
1094 struct circlebuf audio_input_buffer[MAX_AV_PLANES];
1095 uint8_t *audio_output_buffer[MAX_AV_PLANES];
1096
1097 /* if a video encoder is paired with an audio encoder, make it start
1098 * up at the specific timestamp. if this is the audio encoder,
1099 * wait_for_video makes it wait until it's ready to sync up with
1100 * video */
1101 bool wait_for_video;
1102 bool first_received;
1103 struct obs_encoder *paired_encoder;
1104 int64_t offset_usec;
1105 uint64_t first_raw_ts;
1106 uint64_t start_ts;
1107
1108 pthread_mutex_t outputs_mutex;
1109 DARRAY(obs_output_t *) outputs;
1110
1111 bool destroy_on_stop;
1112
1113 /* stores the video/audio media output pointer. video_t *or audio_t **/
1114 void *media;
1115
1116 pthread_mutex_t callbacks_mutex;
1117 DARRAY(struct encoder_callback) callbacks;
1118
1119 struct pause_data pause;
1120
1121 const char *profile_encoder_encode_name;
1122 char *last_error_message;
1123
1124 /* reconfigure encoder at next possible opportunity */
1125 bool reconfigure_requested;
1126 };
1127
1128 extern struct obs_encoder_info *find_encoder(const char *id);
1129
1130 extern bool obs_encoder_initialize(obs_encoder_t *encoder);
1131 extern void obs_encoder_shutdown(obs_encoder_t *encoder);
1132
1133 extern void obs_encoder_start(obs_encoder_t *encoder,
1134 void (*new_packet)(void *param,
1135 struct encoder_packet *packet),
1136 void *param);
1137 extern void obs_encoder_stop(obs_encoder_t *encoder,
1138 void (*new_packet)(void *param,
1139 struct encoder_packet *packet),
1140 void *param);
1141
1142 extern void obs_encoder_add_output(struct obs_encoder *encoder,
1143 struct obs_output *output);
1144 extern void obs_encoder_remove_output(struct obs_encoder *encoder,
1145 struct obs_output *output);
1146
1147 extern bool start_gpu_encode(obs_encoder_t *encoder);
1148 extern void stop_gpu_encode(obs_encoder_t *encoder);
1149
1150 extern bool do_encode(struct obs_encoder *encoder, struct encoder_frame *frame);
1151 extern void send_off_encoder_packet(obs_encoder_t *encoder, bool success,
1152 bool received, struct encoder_packet *pkt);
1153
1154 void obs_encoder_destroy(obs_encoder_t *encoder);
1155
1156 /* ------------------------------------------------------------------------- */
1157 /* services */
1158
1159 struct obs_weak_service {
1160 struct obs_weak_ref ref;
1161 struct obs_service *service;
1162 };
1163
1164 struct obs_service {
1165 struct obs_context_data context;
1166 struct obs_service_info info;
1167 struct obs_weak_service *control;
1168
1169 /* indicates ownership of the info.id buffer */
1170 bool owns_info_id;
1171
1172 bool active;
1173 bool destroy;
1174 struct obs_output *output;
1175 };
1176
1177 extern const struct obs_service_info *find_service(const char *id);
1178
1179 extern void obs_service_activate(struct obs_service *service);
1180 extern void obs_service_deactivate(struct obs_service *service, bool remove);
1181 extern bool obs_service_initialize(struct obs_service *service,
1182 struct obs_output *output);
1183
1184 void obs_service_destroy(obs_service_t *service);
1185