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obs.c
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/******************************************************************************
Copyright (C) 2013-2014 by Hugh Bailey <[email protected]>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
******************************************************************************/
#include <inttypes.h>
#include "graphics/matrix4.h"
#include "callback/calldata.h"
#include "obs.h"
#include "obs-internal.h"
struct obs_core *obs = NULL;
extern void add_default_module_paths(void);
extern char *find_libobs_data_file(const char *file);
static inline void make_video_info(struct video_output_info *vi,
struct obs_video_info *ovi)
{
vi->name = "video";
vi->format = ovi->output_format;
vi->fps_num = ovi->fps_num;
vi->fps_den = ovi->fps_den;
vi->width = ovi->output_width;
vi->height = ovi->output_height;
vi->range = ovi->range;
vi->colorspace = ovi->colorspace;
vi->cache_size = 6;
}
#define PIXEL_SIZE 4
#define GET_ALIGN(val, align) \
(((val) + (align-1)) & ~(align-1))
static inline void set_420p_sizes(const struct obs_video_info *ovi)
{
struct obs_core_video *video = &obs->video;
uint32_t chroma_pixels;
uint32_t total_bytes;
chroma_pixels = (ovi->output_width * ovi->output_height / 4);
chroma_pixels = GET_ALIGN(chroma_pixels, PIXEL_SIZE);
video->plane_offsets[0] = 0;
video->plane_offsets[1] = ovi->output_width * ovi->output_height;
video->plane_offsets[2] = video->plane_offsets[1] + chroma_pixels;
video->plane_linewidth[0] = ovi->output_width;
video->plane_linewidth[1] = ovi->output_width/2;
video->plane_linewidth[2] = ovi->output_width/2;
video->plane_sizes[0] = video->plane_offsets[1];
video->plane_sizes[1] = video->plane_sizes[0]/4;
video->plane_sizes[2] = video->plane_sizes[1];
total_bytes = video->plane_offsets[2] + chroma_pixels;
video->conversion_height =
(total_bytes/PIXEL_SIZE + ovi->output_width-1) /
ovi->output_width;
video->conversion_height = GET_ALIGN(video->conversion_height, 2);
video->conversion_tech = "Planar420";
}
static inline void set_nv12_sizes(const struct obs_video_info *ovi)
{
struct obs_core_video *video = &obs->video;
uint32_t chroma_pixels;
uint32_t total_bytes;
chroma_pixels = (ovi->output_width * ovi->output_height / 2);
chroma_pixels = GET_ALIGN(chroma_pixels, PIXEL_SIZE);
video->plane_offsets[0] = 0;
video->plane_offsets[1] = ovi->output_width * ovi->output_height;
video->plane_linewidth[0] = ovi->output_width;
video->plane_linewidth[1] = ovi->output_width;
video->plane_sizes[0] = video->plane_offsets[1];
video->plane_sizes[1] = video->plane_sizes[0]/2;
total_bytes = video->plane_offsets[1] + chroma_pixels;
video->conversion_height =
(total_bytes/PIXEL_SIZE + ovi->output_width-1) /
ovi->output_width;
video->conversion_height = GET_ALIGN(video->conversion_height, 2);
video->conversion_tech = "NV12";
}
static inline void set_444p_sizes(const struct obs_video_info *ovi)
{
struct obs_core_video *video = &obs->video;
uint32_t chroma_pixels;
uint32_t total_bytes;
chroma_pixels = (ovi->output_width * ovi->output_height);
chroma_pixels = GET_ALIGN(chroma_pixels, PIXEL_SIZE);
video->plane_offsets[0] = 0;
video->plane_offsets[1] = chroma_pixels;
video->plane_offsets[2] = chroma_pixels + chroma_pixels;
video->plane_linewidth[0] = ovi->output_width;
video->plane_linewidth[1] = ovi->output_width;
video->plane_linewidth[2] = ovi->output_width;
video->plane_sizes[0] = chroma_pixels;
video->plane_sizes[1] = chroma_pixels;
video->plane_sizes[2] = chroma_pixels;
total_bytes = video->plane_offsets[2] + chroma_pixels;
video->conversion_height =
(total_bytes/PIXEL_SIZE + ovi->output_width-1) /
ovi->output_width;
video->conversion_height = GET_ALIGN(video->conversion_height, 2);
video->conversion_tech = "Planar444";
}
static inline void calc_gpu_conversion_sizes(const struct obs_video_info *ovi)
{
obs->video.conversion_height = 0;
memset(obs->video.plane_offsets, 0, sizeof(obs->video.plane_offsets));
memset(obs->video.plane_sizes, 0, sizeof(obs->video.plane_sizes));
memset(obs->video.plane_linewidth, 0,
sizeof(obs->video.plane_linewidth));
switch ((uint32_t)ovi->output_format) {
case VIDEO_FORMAT_I420:
set_420p_sizes(ovi);
break;
case VIDEO_FORMAT_NV12:
set_nv12_sizes(ovi);
break;
case VIDEO_FORMAT_I444:
set_444p_sizes(ovi);
break;
}
}
static bool obs_init_gpu_conversion(struct obs_video_info *ovi)
{
struct obs_core_video *video = &obs->video;
calc_gpu_conversion_sizes(ovi);
if (!video->conversion_height) {
blog(LOG_INFO, "GPU conversion not available for format: %u",
(unsigned int)ovi->output_format);
video->gpu_conversion = false;
return true;
}
for (size_t i = 0; i < NUM_TEXTURES; i++) {
video->convert_textures[i] = gs_texture_create(
ovi->output_width, video->conversion_height,
GS_RGBA, 1, NULL, GS_RENDER_TARGET);
if (!video->convert_textures[i])
return false;
}
return true;
}
static bool obs_init_textures(struct obs_video_info *ovi)
{
struct obs_core_video *video = &obs->video;
uint32_t output_height = video->gpu_conversion ?
video->conversion_height : ovi->output_height;
size_t i;
for (i = 0; i < NUM_TEXTURES; i++) {
video->copy_surfaces[i] = gs_stagesurface_create(
ovi->output_width, output_height, GS_RGBA);
if (!video->copy_surfaces[i])
return false;
video->render_textures[i] = gs_texture_create(
ovi->base_width, ovi->base_height,
GS_RGBA, 1, NULL, GS_RENDER_TARGET);
if (!video->render_textures[i])
return false;
video->output_textures[i] = gs_texture_create(
ovi->output_width, ovi->output_height,
GS_RGBA, 1, NULL, GS_RENDER_TARGET);
if (!video->output_textures[i])
return false;
}
return true;
}
gs_effect_t *obs_load_effect(gs_effect_t **effect, const char *file)
{
if (!*effect) {
char *filename = find_libobs_data_file(file);
*effect = gs_effect_create_from_file(filename, NULL);
bfree(filename);
}
return *effect;
}
static int obs_init_graphics(struct obs_video_info *ovi)
{
struct obs_core_video *video = &obs->video;
uint8_t transparent_tex_data[2*2*4] = {0};
const uint8_t *transparent_tex = transparent_tex_data;
bool success = true;
int errorcode;
errorcode = gs_create(&video->graphics, ovi->graphics_module,
ovi->adapter);
if (errorcode != GS_SUCCESS) {
switch (errorcode) {
case GS_ERROR_MODULE_NOT_FOUND:
return OBS_VIDEO_MODULE_NOT_FOUND;
case GS_ERROR_NOT_SUPPORTED:
return OBS_VIDEO_NOT_SUPPORTED;
default:
return OBS_VIDEO_FAIL;
}
}
gs_enter_context(video->graphics);
char *filename = find_libobs_data_file("default.effect");
video->default_effect = gs_effect_create_from_file(filename,
NULL);
bfree(filename);
if (gs_get_device_type() == GS_DEVICE_OPENGL) {
filename = find_libobs_data_file("default_rect.effect");
video->default_rect_effect = gs_effect_create_from_file(
filename, NULL);
bfree(filename);
}
filename = find_libobs_data_file("opaque.effect");
video->opaque_effect = gs_effect_create_from_file(filename,
NULL);
bfree(filename);
filename = find_libobs_data_file("solid.effect");
video->solid_effect = gs_effect_create_from_file(filename,
NULL);
bfree(filename);
filename = find_libobs_data_file("format_conversion.effect");
video->conversion_effect = gs_effect_create_from_file(filename,
NULL);
bfree(filename);
filename = find_libobs_data_file("bicubic_scale.effect");
video->bicubic_effect = gs_effect_create_from_file(filename,
NULL);
bfree(filename);
filename = find_libobs_data_file("lanczos_scale.effect");
video->lanczos_effect = gs_effect_create_from_file(filename,
NULL);
bfree(filename);
filename = find_libobs_data_file("bilinear_lowres_scale.effect");
video->bilinear_lowres_effect = gs_effect_create_from_file(filename,
NULL);
bfree(filename);
filename = find_libobs_data_file("premultiplied_alpha.effect");
video->premultiplied_alpha_effect = gs_effect_create_from_file(filename,
NULL);
bfree(filename);
obs->video.transparent_texture = gs_texture_create(2, 2, GS_RGBA, 1,
&transparent_tex, 0);
if (!video->default_effect)
success = false;
if (gs_get_device_type() == GS_DEVICE_OPENGL) {
if (!video->default_rect_effect)
success = false;
}
if (!video->opaque_effect)
success = false;
if (!video->solid_effect)
success = false;
if (!video->conversion_effect)
success = false;
if (!video->premultiplied_alpha_effect)
success = false;
if (!video->transparent_texture)
success = false;
gs_leave_context();
return success ? OBS_VIDEO_SUCCESS : OBS_VIDEO_FAIL;
}
static inline void set_video_matrix(struct obs_core_video *video,
struct obs_video_info *ovi)
{
struct matrix4 mat;
struct vec4 r_row;
if (format_is_yuv(ovi->output_format)) {
video_format_get_parameters(ovi->colorspace, ovi->range,
(float*)&mat, NULL, NULL);
matrix4_inv(&mat, &mat);
/* swap R and G */
r_row = mat.x;
mat.x = mat.y;
mat.y = r_row;
} else {
matrix4_identity(&mat);
}
memcpy(video->color_matrix, &mat, sizeof(float) * 16);
}
static int obs_init_video(struct obs_video_info *ovi)
{
struct obs_core_video *video = &obs->video;
struct video_output_info vi;
int errorcode;
make_video_info(&vi, ovi);
video->base_width = ovi->base_width;
video->base_height = ovi->base_height;
video->output_width = ovi->output_width;
video->output_height = ovi->output_height;
video->gpu_conversion = ovi->gpu_conversion;
video->scale_type = ovi->scale_type;
set_video_matrix(video, ovi);
errorcode = video_output_open(&video->video, &vi);
if (errorcode != VIDEO_OUTPUT_SUCCESS) {
if (errorcode == VIDEO_OUTPUT_INVALIDPARAM) {
blog(LOG_ERROR, "Invalid video parameters specified");
return OBS_VIDEO_INVALID_PARAM;
} else {
blog(LOG_ERROR, "Could not open video output");
}
return OBS_VIDEO_FAIL;
}
gs_enter_context(video->graphics);
if (ovi->gpu_conversion && !obs_init_gpu_conversion(ovi))
return OBS_VIDEO_FAIL;
if (!obs_init_textures(ovi))
return OBS_VIDEO_FAIL;
gs_leave_context();
errorcode = pthread_create(&video->video_thread, NULL,
obs_video_thread, obs);
if (errorcode != 0)
return OBS_VIDEO_FAIL;
video->thread_initialized = true;
return OBS_VIDEO_SUCCESS;
}
static void stop_video(void)
{
struct obs_core_video *video = &obs->video;
void *thread_retval;
if (video->video) {
video_output_stop(video->video);
if (video->thread_initialized) {
pthread_join(video->video_thread, &thread_retval);
video->thread_initialized = false;
}
}
}
static void obs_free_video(void)
{
struct obs_core_video *video = &obs->video;
if (video->video) {
video_output_close(video->video);
video->video = NULL;
if (!video->graphics)
return;
gs_enter_context(video->graphics);
if (video->mapped_surface) {
gs_stagesurface_unmap(video->mapped_surface);
video->mapped_surface = NULL;
}
for (size_t i = 0; i < NUM_TEXTURES; i++) {
gs_stagesurface_destroy(video->copy_surfaces[i]);
gs_texture_destroy(video->render_textures[i]);
gs_texture_destroy(video->convert_textures[i]);
gs_texture_destroy(video->output_textures[i]);
video->copy_surfaces[i] = NULL;
video->render_textures[i] = NULL;
video->convert_textures[i] = NULL;
video->output_textures[i] = NULL;
}
gs_leave_context();
circlebuf_free(&video->vframe_info_buffer);
memset(&video->textures_rendered, 0,
sizeof(video->textures_rendered));
memset(&video->textures_output, 0,
sizeof(video->textures_output));
memset(&video->textures_copied, 0,
sizeof(video->textures_copied));
memset(&video->textures_converted, 0,
sizeof(video->textures_converted));
video->cur_texture = 0;
}
}
static void obs_free_graphics(void)
{
struct obs_core_video *video = &obs->video;
if (video->graphics) {
gs_enter_context(video->graphics);
gs_texture_destroy(video->transparent_texture);
gs_effect_destroy(video->default_effect);
gs_effect_destroy(video->default_rect_effect);
gs_effect_destroy(video->opaque_effect);
gs_effect_destroy(video->solid_effect);
gs_effect_destroy(video->conversion_effect);
gs_effect_destroy(video->bicubic_effect);
gs_effect_destroy(video->lanczos_effect);
gs_effect_destroy(video->bilinear_lowres_effect);
video->default_effect = NULL;
gs_leave_context();
gs_destroy(video->graphics);
video->graphics = NULL;
}
}
static bool obs_init_audio(struct audio_output_info *ai)
{
struct obs_core_audio *audio = &obs->audio;
int errorcode;
/* TODO: sound subsystem */
audio->user_volume = 1.0f;
errorcode = audio_output_open(&audio->audio, ai);
if (errorcode == AUDIO_OUTPUT_SUCCESS)
return true;
else if (errorcode == AUDIO_OUTPUT_INVALIDPARAM)
blog(LOG_ERROR, "Invalid audio parameters specified");
else
blog(LOG_ERROR, "Could not open audio output");
return false;
}
static void obs_free_audio(void)
{
struct obs_core_audio *audio = &obs->audio;
if (audio->audio)
audio_output_close(audio->audio);
circlebuf_free(&audio->buffered_timestamps);
da_free(audio->render_order);
da_free(audio->root_nodes);
memset(audio, 0, sizeof(struct obs_core_audio));
}
static bool obs_init_data(void)
{
struct obs_core_data *data = &obs->data;
pthread_mutexattr_t attr;
assert(data != NULL);
pthread_mutex_init_value(&obs->data.displays_mutex);
if (pthread_mutexattr_init(&attr) != 0)
return false;
if (pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE) != 0)
goto fail;
if (pthread_mutex_init(&data->sources_mutex, &attr) != 0)
goto fail;
if (pthread_mutex_init(&data->audio_sources_mutex, &attr) != 0)
goto fail;
if (pthread_mutex_init(&data->displays_mutex, &attr) != 0)
goto fail;
if (pthread_mutex_init(&data->outputs_mutex, &attr) != 0)
goto fail;
if (pthread_mutex_init(&data->encoders_mutex, &attr) != 0)
goto fail;
if (pthread_mutex_init(&data->services_mutex, &attr) != 0)
goto fail;
if (!obs_view_init(&data->main_view))
goto fail;
data->valid = true;
fail:
pthread_mutexattr_destroy(&attr);
return data->valid;
}
void obs_main_view_free(struct obs_view *view)
{
if (!view) return;
for (size_t i = 0; i < MAX_CHANNELS; i++)
obs_source_release(view->channels[i]);
memset(view->channels, 0, sizeof(view->channels));
pthread_mutex_destroy(&view->channels_mutex);
}
#define FREE_OBS_LINKED_LIST(type) \
do { \
int unfreed = 0; \
while (data->first_ ## type ) { \
obs_ ## type ## _destroy(data->first_ ## type ); \
unfreed++; \
} \
if (unfreed) \
blog(LOG_INFO, "\t%d " #type "(s) were remaining", \
unfreed); \
} while (false)
static void obs_free_data(void)
{
struct obs_core_data *data = &obs->data;
data->valid = false;
obs_main_view_free(&data->main_view);
blog(LOG_INFO, "Freeing OBS context data");
FREE_OBS_LINKED_LIST(source);
FREE_OBS_LINKED_LIST(output);
FREE_OBS_LINKED_LIST(encoder);
FREE_OBS_LINKED_LIST(display);
FREE_OBS_LINKED_LIST(service);
pthread_mutex_destroy(&data->sources_mutex);
pthread_mutex_destroy(&data->audio_sources_mutex);
pthread_mutex_destroy(&data->displays_mutex);
pthread_mutex_destroy(&data->outputs_mutex);
pthread_mutex_destroy(&data->encoders_mutex);
pthread_mutex_destroy(&data->services_mutex);
}
static const char *obs_signals[] = {
"void source_create(ptr source)",
"void source_destroy(ptr source)",
"void source_remove(ptr source)",
"void source_save(ptr source)",
"void source_load(ptr source)",
"void source_activate(ptr source)",
"void source_deactivate(ptr source)",
"void source_show(ptr source)",
"void source_hide(ptr source)",
"void source_rename(ptr source, string new_name, string prev_name)",
"void source_volume(ptr source, in out float volume)",
"void source_volume_level(ptr source, float level, float magnitude, "
"float peak)",
"void source_transition_start(ptr source)",
"void source_transition_video_stop(ptr source)",
"void source_transition_stop(ptr source)",
"void channel_change(int channel, in out ptr source, ptr prev_source)",
"void master_volume(in out float volume)",
"void hotkey_layout_change()",
"void hotkey_register(ptr hotkey)",
"void hotkey_unregister(ptr hotkey)",
"void hotkey_bindings_changed(ptr hotkey)",
NULL
};
static inline bool obs_init_handlers(void)
{
obs->signals = signal_handler_create();
if (!obs->signals)
return false;
obs->procs = proc_handler_create();
if (!obs->procs)
return false;
return signal_handler_add_array(obs->signals, obs_signals);
}
static pthread_once_t obs_pthread_once_init_token = PTHREAD_ONCE_INIT;
static inline bool obs_init_hotkeys(void)
{
struct obs_core_hotkeys *hotkeys = &obs->hotkeys;
pthread_mutexattr_t attr;
bool success = false;
assert(hotkeys != NULL);
da_init(hotkeys->hotkeys);
hotkeys->signals = obs->signals;
hotkeys->name_map_init_token = obs_pthread_once_init_token;
hotkeys->mute = bstrdup("Mute");
hotkeys->unmute = bstrdup("Unmute");
hotkeys->push_to_mute = bstrdup("Push-to-mute");
hotkeys->push_to_talk = bstrdup("Push-to-talk");
hotkeys->sceneitem_show = bstrdup("Show '%1'");
hotkeys->sceneitem_hide = bstrdup("Hide '%1'");
if (!obs_hotkeys_platform_init(hotkeys))
return false;
if (pthread_mutexattr_init(&attr) != 0)
return false;
if (pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE) != 0)
goto fail;
if (pthread_mutex_init(&hotkeys->mutex, &attr) != 0)
goto fail;
if (os_event_init(&hotkeys->stop_event, OS_EVENT_TYPE_MANUAL) != 0)
goto fail;
if (pthread_create(&hotkeys->hotkey_thread, NULL,
obs_hotkey_thread, NULL))
goto fail;
hotkeys->hotkey_thread_initialized = true;
success = true;
fail:
pthread_mutexattr_destroy(&attr);
return success;
}
static inline void stop_hotkeys(void)
{
struct obs_core_hotkeys *hotkeys = &obs->hotkeys;
void *thread_ret;
if (hotkeys->hotkey_thread_initialized) {
os_event_signal(hotkeys->stop_event);
pthread_join(hotkeys->hotkey_thread, &thread_ret);
hotkeys->hotkey_thread_initialized = false;
}
os_event_destroy(hotkeys->stop_event);
obs_hotkeys_free();
}
static inline void obs_free_hotkeys(void)
{
struct obs_core_hotkeys *hotkeys = &obs->hotkeys;
bfree(hotkeys->mute);
bfree(hotkeys->unmute);
bfree(hotkeys->push_to_mute);
bfree(hotkeys->push_to_talk);
bfree(hotkeys->sceneitem_show);
bfree(hotkeys->sceneitem_hide);
obs_hotkey_name_map_free();
obs_hotkeys_platform_free(hotkeys);
pthread_mutex_destroy(&hotkeys->mutex);
}
extern const struct obs_source_info scene_info;
extern void log_system_info(void);
static bool obs_init(const char *locale, const char *module_config_path,
profiler_name_store_t *store)
{
obs = bzalloc(sizeof(struct obs_core));
obs->name_store_owned = !store;
obs->name_store = store ? store : profiler_name_store_create();
if (!obs->name_store) {
blog(LOG_ERROR, "Couldn't create profiler name store");
return false;
}
log_system_info();
if (!obs_init_data())
return false;
if (!obs_init_handlers())
return false;
if (!obs_init_hotkeys())
return false;
if (module_config_path)
obs->module_config_path = bstrdup(module_config_path);
obs->locale = bstrdup(locale);
obs_register_source(&scene_info);
add_default_module_paths();
return true;
}
#ifdef _WIN32
extern void initialize_crash_handler(void);
extern void initialize_com(void);
extern void uninitialize_com(void);
#endif
static const char *obs_startup_name = "obs_startup";
bool obs_startup(const char *locale, const char *module_config_path,
profiler_name_store_t *store)
{
bool success;
profile_start(obs_startup_name);
if (obs) {
blog(LOG_WARNING, "Tried to call obs_startup more than once");
return false;
}
#ifdef _WIN32
initialize_crash_handler();
initialize_com();
#endif
success = obs_init(locale, module_config_path, store);
profile_end(obs_startup_name);
if (!success)
obs_shutdown();
return success;
}
void obs_shutdown(void)
{
struct obs_module *module;
if (!obs)
return;
#define FREE_REGISTERED_TYPES(structure, list) \
do { \
for (size_t i = 0; i < list.num; i++) { \
struct structure *item = &list.array[i]; \
if (item->type_data && item->free_type_data) \
item->free_type_data(item->type_data); \
} \
da_free(list); \
} while (false)
FREE_REGISTERED_TYPES(obs_source_info, obs->source_types);
FREE_REGISTERED_TYPES(obs_source_info, obs->input_types);
FREE_REGISTERED_TYPES(obs_source_info, obs->filter_types);
FREE_REGISTERED_TYPES(obs_source_info, obs->transition_types);
FREE_REGISTERED_TYPES(obs_output_info, obs->output_types);
FREE_REGISTERED_TYPES(obs_encoder_info, obs->encoder_types);
FREE_REGISTERED_TYPES(obs_service_info, obs->service_types);
FREE_REGISTERED_TYPES(obs_modal_ui, obs->modal_ui_callbacks);
FREE_REGISTERED_TYPES(obs_modeless_ui, obs->modeless_ui_callbacks);
#undef FREE_REGISTERED_TYPES
stop_video();
stop_hotkeys();
obs_free_audio();
obs_free_data();
obs_free_video();
obs_free_hotkeys();
obs_free_graphics();
proc_handler_destroy(obs->procs);
signal_handler_destroy(obs->signals);
module = obs->first_module;
while (module) {
struct obs_module *next = module->next;
free_module(module);
module = next;
}
obs->first_module = NULL;
for (size_t i = 0; i < obs->module_paths.num; i++)
free_module_path(obs->module_paths.array+i);
da_free(obs->module_paths);
if (obs->name_store_owned)
profiler_name_store_free(obs->name_store);
bfree(obs->module_config_path);
bfree(obs->locale);
bfree(obs);
obs = NULL;
#ifdef _WIN32
uninitialize_com();
#endif
}
bool obs_initialized(void)
{
return obs != NULL;
}
uint32_t obs_get_version(void)
{
return LIBOBS_API_VER;
}
void obs_set_locale(const char *locale)
{
struct obs_module *module;
if (!obs)
return;
if (obs->locale)
bfree(obs->locale);
obs->locale = bstrdup(locale);
module = obs->first_module;
while (module) {
if (module->set_locale)
module->set_locale(locale);
module = module->next;
}
}
const char *obs_get_locale(void)
{
return obs ? obs->locale : NULL;
}
#define OBS_SIZE_MIN 2
#define OBS_SIZE_MAX (32 * 1024)
static inline bool size_valid(uint32_t width, uint32_t height)
{
return (width >= OBS_SIZE_MIN && height >= OBS_SIZE_MIN &&
width <= OBS_SIZE_MAX && height <= OBS_SIZE_MAX);
}
int obs_reset_video(struct obs_video_info *ovi)
{
if (!obs) return OBS_VIDEO_FAIL;
/* don't allow changing of video settings if active. */
if (obs->video.video && video_output_active(obs->video.video))
return OBS_VIDEO_CURRENTLY_ACTIVE;
if (!size_valid(ovi->output_width, ovi->output_height) ||
!size_valid(ovi->base_width, ovi->base_height))
return OBS_VIDEO_INVALID_PARAM;
struct obs_core_video *video = &obs->video;
stop_video();
obs_free_video();
if (!ovi) {
obs_free_graphics();
return OBS_VIDEO_SUCCESS;
}
/* align to multiple-of-two and SSE alignment sizes */
ovi->output_width &= 0xFFFFFFFC;
ovi->output_height &= 0xFFFFFFFE;
if (!video->graphics) {
int errorcode = obs_init_graphics(ovi);
if (errorcode != OBS_VIDEO_SUCCESS) {
obs_free_graphics();
return errorcode;
}
}
blog(LOG_INFO, "---------------------------------");
blog(LOG_INFO, "video settings reset:\n"
"\tbase resolution: %dx%d\n"
"\toutput resolution: %dx%d\n"
"\tfps: %d/%d\n"
"\tformat: %s",
ovi->base_width, ovi->base_height,
ovi->output_width, ovi->output_height,
ovi->fps_num, ovi->fps_den,
get_video_format_name(ovi->output_format));
return obs_init_video(ovi);
}
bool obs_reset_audio(const struct obs_audio_info *oai)
{
struct audio_output_info ai;
if (!obs) return false;
/* don't allow changing of audio settings if active. */
if (obs->audio.audio && audio_output_active(obs->audio.audio))
return false;
obs_free_audio();
if (!oai)
return true;
ai.name = "Audio";
ai.samples_per_sec = oai->samples_per_sec;
ai.format = AUDIO_FORMAT_FLOAT_PLANAR;
ai.speakers = oai->speakers;
ai.input_callback = audio_callback;
blog(LOG_INFO, "---------------------------------");
blog(LOG_INFO, "audio settings reset:\n"
"\tsamples per sec: %d\n"
"\tspeakers: %d",
(int)ai.samples_per_sec,
(int)ai.speakers);
return obs_init_audio(&ai);
}
bool obs_get_video_info(struct obs_video_info *ovi)
{
struct obs_core_video *video = &obs->video;
const struct video_output_info *info;
if (!obs || !video->graphics)
return false;
info = video_output_get_info(video->video);
if (!info)
return false;
memset(ovi, 0, sizeof(struct obs_video_info));
ovi->base_width = video->base_width;
ovi->base_height = video->base_height;
ovi->gpu_conversion= video->gpu_conversion;
ovi->scale_type = video->scale_type;
ovi->colorspace = info->colorspace;
ovi->range = info->range;
ovi->output_width = info->width;
ovi->output_height = info->height;
ovi->output_format = info->format;
ovi->fps_num = info->fps_num;
ovi->fps_den = info->fps_den;
return true;
}
bool obs_get_audio_info(struct obs_audio_info *oai)
{
struct obs_core_audio *audio = &obs->audio;
const struct audio_output_info *info;
if (!obs || !oai || !audio->audio)
return false;
info = audio_output_get_info(audio->audio);