768 lines
24 KiB
C
768 lines
24 KiB
C
/******************************************************************************
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Copyright (C) 2013-2014 by Hugh Bailey <obs.jim@gmail.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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******************************************************************************/
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#pragma once
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#include "util/c99defs.h"
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#include "util/darray.h"
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#include "util/circlebuf.h"
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#include "util/dstr.h"
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#include "util/threading.h"
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#include "util/platform.h"
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#include "util/profiler.h"
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#include "callback/signal.h"
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#include "callback/proc.h"
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#include "graphics/graphics.h"
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#include "media-io/audio-resampler.h"
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#include "media-io/video-io.h"
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#include "media-io/audio-io.h"
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#include "obs.h"
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#define NUM_TEXTURES 2
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#define MICROSECOND_DEN 1000000
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static inline int64_t packet_dts_usec(struct encoder_packet *packet)
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{
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return packet->dts * MICROSECOND_DEN / packet->timebase_den;
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}
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struct draw_callback {
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void (*draw)(void *param, uint32_t cx, uint32_t cy);
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void *param;
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};
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/* ------------------------------------------------------------------------- */
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/* validity checks */
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static inline bool obs_object_valid(const void *obj, const char *f,
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const char *t)
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{
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if (!obj) {
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blog(LOG_WARNING, "Null %s passed to %s!", t, f);
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return false;
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}
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return true;
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}
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static inline bool obs_source_valid(const obs_source_t *obj, const char *f)
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{
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return obs_object_valid(obj, f, "source");
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}
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static inline bool obs_output_valid(const obs_output_t *obj, const char *f)
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{
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return obs_object_valid(obj, f, "output");
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}
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static inline bool obs_encoder_valid(const obs_encoder_t *obj, const char *f)
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{
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return obs_object_valid(obj, f, "encoder");
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}
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static inline bool obs_service_valid(const obs_service_t *obj, const char *f)
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{
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return obs_object_valid(obj, f, "service");
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}
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/* ------------------------------------------------------------------------- */
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/* modules */
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struct obs_module {
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char *mod_name;
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const char *file;
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char *bin_path;
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char *data_path;
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void *module;
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bool loaded;
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bool (*load)(void);
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void (*unload)(void);
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void (*set_locale)(const char *locale);
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void (*free_locale)(void);
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uint32_t (*ver)(void);
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void (*set_pointer)(obs_module_t *module);
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const char *(*name)(void);
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const char *(*description)(void);
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const char *(*author)(void);
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struct obs_module *next;
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};
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extern void free_module(struct obs_module *mod);
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struct obs_module_path {
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char *bin;
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char *data;
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};
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static inline void free_module_path(struct obs_module_path *omp)
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{
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if (omp) {
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bfree(omp->bin);
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bfree(omp->data);
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}
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}
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static inline bool check_path(const char *data, const char *path,
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struct dstr *output)
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{
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dstr_copy(output, path);
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dstr_cat(output, data);
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return os_file_exists(output->array);
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}
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/* ------------------------------------------------------------------------- */
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/* hotkeys */
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struct obs_hotkey {
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obs_hotkey_id id;
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char *name;
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char *description;
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obs_hotkey_func func;
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void *data;
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int pressed;
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obs_hotkey_registerer_t registerer_type;
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void *registerer;
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obs_hotkey_id pair_partner_id;
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};
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struct obs_hotkey_pair {
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obs_hotkey_pair_id pair_id;
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obs_hotkey_id id[2];
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obs_hotkey_active_func func[2];
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bool pressed0 : 1;
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bool pressed1 : 1;
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void *data[2];
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};
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typedef struct obs_hotkey_pair obs_hotkey_pair_t;
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typedef struct obs_hotkeys_platform obs_hotkeys_platform_t;
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void *obs_hotkey_thread(void *param);
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struct obs_core_hotkeys;
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bool obs_hotkeys_platform_init(struct obs_core_hotkeys *hotkeys);
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void obs_hotkeys_platform_free(struct obs_core_hotkeys *hotkeys);
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bool obs_hotkeys_platform_is_pressed(obs_hotkeys_platform_t *context,
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obs_key_t key);
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const char *obs_get_hotkey_translation(obs_key_t key, const char *def);
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struct obs_context_data;
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void obs_hotkeys_context_release(struct obs_context_data *context);
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void obs_hotkeys_free(void);
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struct obs_hotkey_binding {
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obs_key_combination_t key;
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bool pressed : 1;
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bool modifiers_match : 1;
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obs_hotkey_id hotkey_id;
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obs_hotkey_t *hotkey;
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};
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struct obs_hotkey_name_map;
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void obs_hotkey_name_map_free(void);
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/* ------------------------------------------------------------------------- */
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/* views */
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struct obs_view {
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pthread_mutex_t channels_mutex;
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obs_source_t *channels[MAX_CHANNELS];
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};
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extern bool obs_view_init(struct obs_view *view);
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extern void obs_view_free(struct obs_view *view);
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/* ------------------------------------------------------------------------- */
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/* displays */
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struct obs_display {
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bool size_changed;
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bool enabled;
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uint32_t cx, cy;
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uint32_t background_color;
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gs_swapchain_t *swap;
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pthread_mutex_t draw_callbacks_mutex;
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DARRAY(struct draw_callback) draw_callbacks;
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struct obs_display *next;
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struct obs_display **prev_next;
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};
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extern bool obs_display_init(struct obs_display *display,
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const struct gs_init_data *graphics_data);
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extern void obs_display_free(struct obs_display *display);
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/* ------------------------------------------------------------------------- */
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/* core */
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struct obs_vframe_info {
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uint64_t timestamp;
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int count;
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};
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struct obs_core_video {
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graphics_t *graphics;
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gs_stagesurf_t *copy_surfaces[NUM_TEXTURES];
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gs_texture_t *render_textures[NUM_TEXTURES];
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gs_texture_t *output_textures[NUM_TEXTURES];
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gs_texture_t *convert_textures[NUM_TEXTURES];
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bool textures_rendered[NUM_TEXTURES];
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bool textures_output[NUM_TEXTURES];
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bool textures_copied[NUM_TEXTURES];
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bool textures_converted[NUM_TEXTURES];
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struct circlebuf vframe_info_buffer;
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gs_effect_t *default_effect;
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gs_effect_t *default_rect_effect;
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gs_effect_t *opaque_effect;
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gs_effect_t *solid_effect;
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gs_effect_t *conversion_effect;
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gs_effect_t *bicubic_effect;
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gs_effect_t *lanczos_effect;
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gs_effect_t *bilinear_lowres_effect;
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gs_stagesurf_t *mapped_surface;
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int cur_texture;
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uint64_t video_time;
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video_t *video;
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pthread_t video_thread;
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bool thread_initialized;
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bool gpu_conversion;
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const char *conversion_tech;
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uint32_t conversion_height;
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uint32_t plane_offsets[3];
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uint32_t plane_sizes[3];
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uint32_t plane_linewidth[3];
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uint32_t output_width;
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uint32_t output_height;
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uint32_t base_width;
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uint32_t base_height;
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float color_matrix[16];
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enum obs_scale_type scale_type;
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};
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struct obs_core_audio {
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/* TODO: sound output subsystem */
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audio_t *audio;
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float user_volume;
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float present_volume;
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};
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/* user sources, output channels, and displays */
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struct obs_core_data {
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pthread_mutex_t user_sources_mutex;
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DARRAY(struct obs_source*) user_sources;
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struct obs_source *first_source;
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struct obs_display *first_display;
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struct obs_output *first_output;
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struct obs_encoder *first_encoder;
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struct obs_service *first_service;
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pthread_mutex_t sources_mutex;
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pthread_mutex_t displays_mutex;
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pthread_mutex_t outputs_mutex;
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pthread_mutex_t encoders_mutex;
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pthread_mutex_t services_mutex;
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struct obs_view main_view;
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volatile long active_transitions;
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long long unnamed_index;
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volatile bool valid;
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};
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/* user hotkeys */
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struct obs_core_hotkeys {
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pthread_mutex_t mutex;
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DARRAY(obs_hotkey_t) hotkeys;
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obs_hotkey_id next_id;
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DARRAY(obs_hotkey_pair_t) hotkey_pairs;
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obs_hotkey_pair_id next_pair_id;
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pthread_t hotkey_thread;
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bool hotkey_thread_initialized;
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os_event_t *stop_event;
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bool thread_disable_press : 1;
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bool strict_modifiers : 1;
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bool reroute_hotkeys : 1;
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DARRAY(obs_hotkey_binding_t) bindings;
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obs_hotkey_callback_router_func router_func;
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void *router_func_data;
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obs_hotkeys_platform_t *platform_context;
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pthread_once_t name_map_init_token;
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struct obs_hotkey_name_map *name_map;
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signal_handler_t *signals;
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char *translations[OBS_KEY_LAST_VALUE];
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char *mute;
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char *unmute;
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char *push_to_mute;
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char *push_to_talk;
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char *sceneitem_show;
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char *sceneitem_hide;
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};
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struct obs_core {
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struct obs_module *first_module;
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DARRAY(struct obs_module_path) module_paths;
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DARRAY(struct obs_source_info) input_types;
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DARRAY(struct obs_source_info) filter_types;
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DARRAY(struct obs_source_info) transition_types;
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DARRAY(struct obs_output_info) output_types;
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DARRAY(struct obs_encoder_info) encoder_types;
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DARRAY(struct obs_service_info) service_types;
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DARRAY(struct obs_modal_ui) modal_ui_callbacks;
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DARRAY(struct obs_modeless_ui) modeless_ui_callbacks;
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signal_handler_t *signals;
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proc_handler_t *procs;
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char *locale;
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char *module_config_path;
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bool name_store_owned;
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profiler_name_store_t *name_store;
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/* segmented into multiple sub-structures to keep things a bit more
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* clean and organized */
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struct obs_core_video video;
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struct obs_core_audio audio;
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struct obs_core_data data;
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struct obs_core_hotkeys hotkeys;
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};
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extern struct obs_core *obs;
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extern void *obs_video_thread(void *param);
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/* ------------------------------------------------------------------------- */
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/* obs shared context data */
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struct obs_context_data {
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char *name;
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void *data;
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obs_data_t *settings;
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signal_handler_t *signals;
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proc_handler_t *procs;
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DARRAY(obs_hotkey_id) hotkeys;
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DARRAY(obs_hotkey_pair_id) hotkey_pairs;
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obs_data_t *hotkey_data;
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DARRAY(char*) rename_cache;
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pthread_mutex_t rename_cache_mutex;
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pthread_mutex_t *mutex;
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struct obs_context_data *next;
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struct obs_context_data **prev_next;
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};
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extern bool obs_context_data_init(
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struct obs_context_data *context,
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obs_data_t *settings,
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const char *name,
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obs_data_t *hotkey_data);
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extern void obs_context_data_free(struct obs_context_data *context);
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extern void obs_context_data_insert(struct obs_context_data *context,
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pthread_mutex_t *mutex, void *first);
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extern void obs_context_data_remove(struct obs_context_data *context);
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extern void obs_context_data_setname(struct obs_context_data *context,
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const char *name);
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/* ------------------------------------------------------------------------- */
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/* ref-counting */
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struct obs_weak_ref {
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volatile long refs;
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volatile long weak_refs;
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};
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static inline void obs_ref_addref(struct obs_weak_ref *ref)
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{
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os_atomic_inc_long(&ref->refs);
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}
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static inline bool obs_ref_release(struct obs_weak_ref *ref)
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{
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return os_atomic_dec_long(&ref->refs) == -1;
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}
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static inline void obs_weak_ref_addref(struct obs_weak_ref *ref)
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{
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os_atomic_inc_long(&ref->weak_refs);
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}
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static inline bool obs_weak_ref_release(struct obs_weak_ref *ref)
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{
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return os_atomic_dec_long(&ref->weak_refs) == -1;
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}
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static inline bool obs_weak_ref_get_ref(struct obs_weak_ref *ref)
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{
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long owners = ref->refs;
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while (owners > -1) {
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if (os_atomic_compare_swap_long(&ref->refs, owners, owners + 1))
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return true;
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owners = ref->refs;
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}
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return false;
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}
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/* ------------------------------------------------------------------------- */
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/* sources */
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struct async_frame {
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struct obs_source_frame *frame;
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long unused_count;
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bool used;
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};
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struct obs_weak_source {
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struct obs_weak_ref ref;
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struct obs_source *source;
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};
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struct obs_source {
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struct obs_context_data context;
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struct obs_source_info info;
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struct obs_weak_source *control;
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/* general exposed flags that can be set for the source */
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uint32_t flags;
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uint32_t default_flags;
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/* indicates ownership of the info.id buffer */
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bool owns_info_id;
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/* signals to call the source update in the video thread */
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bool defer_update;
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/* ensures show/hide are only called once */
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volatile long show_refs;
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/* ensures activate/deactivate are only called once */
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volatile long activate_refs;
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/* used to indicate that the source has been removed and all
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* references to it should be released (not exactly how I would prefer
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* to handle things but it's the best option) */
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bool removed;
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bool active;
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bool showing;
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/* used to temporarily disable sources if needed */
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bool enabled;
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/* timing (if video is present, is based upon video) */
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volatile bool timing_set;
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volatile uint64_t timing_adjust;
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uint64_t next_audio_ts_min;
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uint64_t last_frame_ts;
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uint64_t last_sys_timestamp;
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bool async_rendered;
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/* audio */
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bool audio_failed;
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bool muted;
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struct resample_info sample_info;
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audio_resampler_t *resampler;
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audio_line_t *audio_line;
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pthread_mutex_t audio_mutex;
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struct obs_audio_data audio_data;
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size_t audio_storage_size;
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float base_volume;
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float user_volume;
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float present_volume;
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int64_t sync_offset;
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/* async video data */
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gs_texture_t *async_texture;
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gs_texrender_t *async_convert_texrender;
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struct obs_source_frame *cur_async_frame;
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bool async_gpu_conversion;
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enum video_format async_format;
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enum video_format async_cache_format;
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enum gs_color_format async_texture_format;
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float async_color_matrix[16];
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bool async_full_range;
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float async_color_range_min[3];
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float async_color_range_max[3];
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int async_plane_offset[2];
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bool async_flip;
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bool async_active;
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DARRAY(struct async_frame) async_cache;
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DARRAY(struct obs_source_frame*)async_frames;
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pthread_mutex_t async_mutex;
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uint32_t async_width;
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uint32_t async_height;
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uint32_t async_cache_width;
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uint32_t async_cache_height;
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uint32_t async_convert_width;
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uint32_t async_convert_height;
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/* filters */
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struct obs_source *filter_parent;
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struct obs_source *filter_target;
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DARRAY(struct obs_source*) filters;
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pthread_mutex_t filter_mutex;
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gs_texrender_t *filter_texrender;
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enum obs_allow_direct_render allow_direct;
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bool rendering_filter;
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/* sources specific hotkeys */
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obs_hotkey_pair_id mute_unmute_key;
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obs_hotkey_id push_to_mute_key;
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obs_hotkey_id push_to_talk_key;
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bool push_to_mute_enabled : 1;
|
|
bool push_to_mute_pressed : 1;
|
|
bool push_to_talk_enabled : 1;
|
|
bool push_to_talk_pressed : 1;
|
|
uint64_t push_to_mute_delay;
|
|
uint64_t push_to_mute_stop_time;
|
|
uint64_t push_to_talk_delay;
|
|
uint64_t push_to_talk_stop_time;
|
|
};
|
|
|
|
extern const struct obs_source_info *find_source(struct darray *list,
|
|
const char *id);
|
|
extern bool obs_source_init_context(struct obs_source *source,
|
|
obs_data_t *settings, const char *name,
|
|
obs_data_t *hotkey_data);
|
|
extern bool obs_source_init(struct obs_source *source,
|
|
const struct obs_source_info *info);
|
|
|
|
extern void obs_source_destroy(struct obs_source *source);
|
|
|
|
enum view_type {
|
|
MAIN_VIEW,
|
|
AUX_VIEW
|
|
};
|
|
|
|
extern void obs_source_activate(obs_source_t *source, enum view_type type);
|
|
extern void obs_source_deactivate(obs_source_t *source, enum view_type type);
|
|
extern void obs_source_video_tick(obs_source_t *source, float seconds);
|
|
extern float obs_source_get_target_volume(obs_source_t *source,
|
|
obs_source_t *target);
|
|
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
/* outputs */
|
|
|
|
struct obs_weak_output {
|
|
struct obs_weak_ref ref;
|
|
struct obs_output *output;
|
|
};
|
|
|
|
struct obs_output {
|
|
struct obs_context_data context;
|
|
struct obs_output_info info;
|
|
struct obs_weak_output *control;
|
|
|
|
bool received_video;
|
|
bool received_audio;
|
|
int64_t video_offset;
|
|
int64_t audio_offsets[MAX_AUDIO_MIXES];
|
|
int64_t highest_audio_ts;
|
|
int64_t highest_video_ts;
|
|
pthread_mutex_t interleaved_mutex;
|
|
DARRAY(struct encoder_packet) interleaved_packets;
|
|
|
|
int reconnect_retry_sec;
|
|
int reconnect_retry_max;
|
|
int reconnect_retries;
|
|
int reconnect_retry_cur_sec;
|
|
bool reconnecting;
|
|
pthread_t reconnect_thread;
|
|
os_event_t *reconnect_stop_event;
|
|
volatile bool reconnect_thread_active;
|
|
|
|
uint32_t starting_frame_count;
|
|
uint32_t starting_skipped_frame_count;
|
|
|
|
int total_frames;
|
|
|
|
bool active;
|
|
volatile bool stopped;
|
|
video_t *video;
|
|
audio_t *audio;
|
|
obs_encoder_t *video_encoder;
|
|
obs_encoder_t *audio_encoders[MAX_AUDIO_MIXES];
|
|
obs_service_t *service;
|
|
size_t mixer_idx;
|
|
|
|
uint32_t scaled_width;
|
|
uint32_t scaled_height;
|
|
|
|
bool video_conversion_set;
|
|
bool audio_conversion_set;
|
|
struct video_scale_info video_conversion;
|
|
struct audio_convert_info audio_conversion;
|
|
|
|
bool valid;
|
|
};
|
|
|
|
extern const struct obs_output_info *find_output(const char *id);
|
|
|
|
extern void obs_output_remove_encoder(struct obs_output *output,
|
|
struct obs_encoder *encoder);
|
|
|
|
void obs_output_destroy(obs_output_t *output);
|
|
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
/* encoders */
|
|
|
|
struct obs_weak_encoder {
|
|
struct obs_weak_ref ref;
|
|
struct obs_encoder *encoder;
|
|
};
|
|
|
|
struct encoder_callback {
|
|
bool sent_first_packet;
|
|
void (*new_packet)(void *param, struct encoder_packet *packet);
|
|
void *param;
|
|
};
|
|
|
|
struct obs_encoder {
|
|
struct obs_context_data context;
|
|
struct obs_encoder_info info;
|
|
struct obs_weak_encoder *control;
|
|
|
|
uint32_t samplerate;
|
|
size_t planes;
|
|
size_t blocksize;
|
|
size_t framesize;
|
|
size_t framesize_bytes;
|
|
|
|
size_t mixer_idx;
|
|
|
|
uint32_t scaled_width;
|
|
uint32_t scaled_height;
|
|
enum video_format preferred_format;
|
|
|
|
bool active;
|
|
|
|
uint32_t timebase_num;
|
|
uint32_t timebase_den;
|
|
|
|
int64_t cur_pts;
|
|
|
|
struct circlebuf audio_input_buffer[MAX_AV_PLANES];
|
|
uint8_t *audio_output_buffer[MAX_AV_PLANES];
|
|
|
|
/* if a video encoder is paired with an audio encoder, make it start
|
|
* up at the specific timestamp. if this is the audio encoder,
|
|
* wait_for_video makes it wait until it's ready to sync up with
|
|
* video */
|
|
bool wait_for_video;
|
|
struct obs_encoder *paired_encoder;
|
|
uint64_t start_ts;
|
|
|
|
pthread_mutex_t outputs_mutex;
|
|
DARRAY(obs_output_t*) outputs;
|
|
|
|
bool destroy_on_stop;
|
|
|
|
/* stores the video/audio media output pointer. video_t *or audio_t **/
|
|
void *media;
|
|
|
|
pthread_mutex_t callbacks_mutex;
|
|
DARRAY(struct encoder_callback) callbacks;
|
|
|
|
const char *profile_encoder_encode_name;
|
|
};
|
|
|
|
extern struct obs_encoder_info *find_encoder(const char *id);
|
|
|
|
extern bool obs_encoder_initialize(obs_encoder_t *encoder);
|
|
|
|
extern void obs_encoder_start(obs_encoder_t *encoder,
|
|
void (*new_packet)(void *param, struct encoder_packet *packet),
|
|
void *param);
|
|
extern void obs_encoder_stop(obs_encoder_t *encoder,
|
|
void (*new_packet)(void *param, struct encoder_packet *packet),
|
|
void *param);
|
|
|
|
extern void obs_encoder_add_output(struct obs_encoder *encoder,
|
|
struct obs_output *output);
|
|
extern void obs_encoder_remove_output(struct obs_encoder *encoder,
|
|
struct obs_output *output);
|
|
|
|
void obs_encoder_destroy(obs_encoder_t *encoder);
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
/* services */
|
|
|
|
struct obs_weak_service {
|
|
struct obs_weak_ref ref;
|
|
struct obs_service *service;
|
|
};
|
|
|
|
struct obs_service {
|
|
struct obs_context_data context;
|
|
struct obs_service_info info;
|
|
struct obs_weak_service *control;
|
|
|
|
bool active;
|
|
bool destroy;
|
|
struct obs_output *output;
|
|
};
|
|
|
|
extern const struct obs_service_info *find_service(const char *id);
|
|
|
|
extern void obs_service_activate(struct obs_service *service);
|
|
extern void obs_service_deactivate(struct obs_service *service, bool remove);
|
|
extern bool obs_service_initialize(struct obs_service *service,
|
|
struct obs_output *output);
|
|
|
|
void obs_service_destroy(obs_service_t *service);
|
|
|