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source-switcher.c
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#include <obs-module.h>
#include "source-switcher.h"
#include "version.h"
#include "util/platform.h"
#include <obs-frontend-api.h>
struct switcher_hotkey_info {
obs_hotkey_id hotkey_id;
obs_source_t *source;
};
struct switcher_info {
obs_source_t *source;
obs_source_t *current_source;
DARRAY(obs_source_t *) sources;
DARRAY(struct switcher_hotkey_info) hotkeys;
size_t current_index;
bool loop;
uint64_t last_switch_time;
bool log;
bool time_switch;
uint64_t time_switch_duration;
uint64_t time_switch_between;
int32_t time_switch_to;
bool media_state_switch;
int32_t media_switch_state;
int32_t media_state_switch_to;
obs_source_t *transition;
obs_source_t *hide_transition;
obs_source_t *show_transition;
obs_source_t *current_transition;
int transition_running;
bool transition_resize;
uint64_t transition_duration;
bool current_source_file;
char *current_source_file_path;
uint64_t current_source_file_interval;
float current_source_file_duration;
enum obs_media_state state;
};
static const char *switcher_get_name(void *type_data)
{
UNUSED_PARAMETER(type_data);
return obs_module_text("SourceSwitcher");
}
void switcher_source_rename(void *data, calldata_t *call_data)
{
struct switcher_info *switcher = data;
const char *new_name = calldata_string(call_data, "new_name");
const char *prev_name = calldata_string(call_data, "prev_name");
obs_data_t *settings = obs_source_get_settings(switcher->source);
if (!settings || !new_name || !prev_name)
return;
obs_data_array_t *sources = obs_data_get_array(settings, S_SOURCES);
if (sources) {
const size_t count = obs_data_array_count(sources);
for (size_t i = 0; i < count; i++) {
obs_data_t *item = obs_data_array_item(sources, i);
const char *source_name = obs_data_get_string(item, "value");
if (strcmp(source_name, prev_name) == 0) {
obs_data_set_string(item, "value", new_name);
}
obs_data_release(item);
}
obs_data_array_release(sources);
}
obs_data_release(settings);
}
void switcher_index_changed(struct switcher_info *switcher)
{
if (!switcher->sources.num)
return;
if (switcher->current_index >= switcher->sources.num) {
switcher->current_index = switcher->loop ? 0 : switcher->sources.num - 1;
}
obs_source_t *dest = switcher->sources.array[switcher->current_index];
if (switcher->current_source == dest)
return;
if (!switcher->current_source && switcher->show_transition) {
if (!switcher->transition_resize) {
uint32_t cx = obs_source_get_width(dest);
uint32_t cy = obs_source_get_height(dest);
if (switcher->current_source) {
const uint32_t cxa = obs_source_get_width(switcher->current_source);
if (cxa > cx)
cx = cxa;
const uint32_t cya = obs_source_get_height(switcher->current_source);
if (cya > cy)
cy = cya;
}
obs_transition_set_size(switcher->show_transition, cx, cy);
} else {
obs_transition_set_size(switcher->show_transition, obs_source_get_width(switcher->current_source),
obs_source_get_height(switcher->current_source));
}
obs_transition_set(switcher->show_transition, switcher->current_source);
obs_transition_start(switcher->show_transition, OBS_TRANSITION_MODE_AUTO, (uint32_t)switcher->transition_duration,
dest);
obs_source_add_active_child(switcher->source, switcher->show_transition);
switcher->transition_running = TRANSITION_SHOW;
uint32_t cx;
uint32_t cy;
obs_transition_get_size(switcher->show_transition, &cx, &cy);
if (switcher->log)
blog(LOG_INFO, "[source-switcher: '%s'] show transition to '%s' using '%s' for %i ms, %s {%i,%i}",
obs_source_get_name(switcher->source), obs_source_get_name(dest),
obs_source_get_name(switcher->show_transition), (int)switcher->transition_duration,
switcher->transition_resize ? "resize" : "fixed size", cx, cy);
obs_source_release(switcher->current_transition);
switcher->current_transition = obs_source_get_ref(switcher->show_transition);
} else if (switcher->transition) {
if (!switcher->transition_resize) {
uint32_t cx = obs_source_get_width(dest);
uint32_t cy = obs_source_get_height(dest);
if (switcher->current_source) {
const uint32_t cxa = obs_source_get_width(switcher->current_source);
if (cxa > cx)
cx = cxa;
const uint32_t cya = obs_source_get_height(switcher->current_source);
if (cya > cy)
cy = cya;
}
obs_transition_set_size(switcher->transition, cx, cy);
} else {
obs_transition_set_size(switcher->transition, obs_source_get_width(switcher->current_source),
obs_source_get_height(switcher->current_source));
}
obs_transition_set(switcher->transition, switcher->current_source);
obs_transition_start(switcher->transition, OBS_TRANSITION_MODE_AUTO, (uint32_t)switcher->transition_duration, dest);
obs_source_add_active_child(switcher->source, switcher->transition);
switcher->transition_running = TRANSITION_NORMAL;
uint32_t cx;
uint32_t cy;
obs_transition_get_size(switcher->transition, &cx, &cy);
if (switcher->log)
blog(LOG_INFO, "[source-switcher: '%s'] transition to '%s' using '%s' for %i ms, %s {%i,%i}",
obs_source_get_name(switcher->source), obs_source_get_name(dest),
obs_source_get_name(switcher->transition), (int)switcher->transition_duration,
switcher->transition_resize ? "resize" : "fixed size", cx, cy);
obs_source_release(switcher->current_transition);
switcher->current_transition = obs_source_get_ref(switcher->transition);
} else {
obs_source_release(switcher->current_transition);
switcher->current_transition = NULL;
if (switcher->log)
blog(LOG_INFO, "[source-switcher: '%s'] switch to '%s'", obs_source_get_name(switcher->source),
obs_source_get_name(dest));
}
if (switcher->current_source) {
obs_source_release(switcher->current_source);
obs_source_remove_active_child(switcher->source, switcher->current_source);
}
switcher->current_source = obs_source_get_ref(dest);
obs_source_add_active_child(switcher->source, switcher->current_source);
if (switcher->current_source_file && switcher->current_source_file_path && strlen(switcher->current_source_file_path)) {
const char *source_name = switcher->current_source ? obs_source_get_name(switcher->current_source) : "";
os_quick_write_utf8_file(switcher->current_source_file_path, source_name, strlen(source_name), false);
}
}
void switcher_switch_to(struct switcher_info *switcher, int32_t switch_to)
{
switcher->last_switch_time = obs_get_video_frame_time();
if (switch_to == SWITCH_NONE) {
if (switcher->current_source) {
obs_source_release(switcher->current_source);
obs_source_remove_active_child(switcher->source, switcher->current_source);
if (switcher->hide_transition) {
obs_transition_set_size(switcher->hide_transition, obs_source_get_width(switcher->current_source),
obs_source_get_height(switcher->current_source));
obs_transition_set(switcher->hide_transition, switcher->current_source);
obs_transition_start(switcher->hide_transition, OBS_TRANSITION_MODE_AUTO,
(uint32_t)switcher->transition_duration, NULL);
obs_source_add_active_child(switcher->source, switcher->hide_transition);
switcher->transition_running = TRANSITION_HIDE;
if (switcher->log)
blog(LOG_INFO, "[source-switcher: '%s'] hide transition to none",
obs_source_get_name(switcher->source));
obs_source_release(switcher->current_transition);
switcher->current_transition = obs_source_get_ref(switcher->hide_transition);
} else if (switcher->transition) {
obs_transition_set_size(switcher->transition, obs_source_get_width(switcher->current_source),
obs_source_get_height(switcher->current_source));
obs_transition_set(switcher->transition, switcher->current_source);
obs_transition_start(switcher->transition, OBS_TRANSITION_MODE_AUTO,
(uint32_t)switcher->transition_duration, NULL);
obs_source_add_active_child(switcher->source, switcher->transition);
switcher->transition_running = TRANSITION_NORMAL;
if (switcher->log)
blog(LOG_INFO, "[source-switcher: '%s'] transition to none",
obs_source_get_name(switcher->source));
obs_source_release(switcher->current_transition);
switcher->current_transition = obs_source_get_ref(switcher->transition);
} else {
obs_source_release(switcher->current_transition);
switcher->current_transition = NULL;
if (switcher->log)
blog(LOG_INFO, "[source-switcher: '%s'] switch to none",
obs_source_get_name(switcher->source));
}
switcher->current_source = NULL;
}
return;
}
if (switch_to == SWITCH_NEXT) {
switcher->current_index++;
} else if (switch_to == SWITCH_PREVIOUS) {
if (!switcher->current_index) {
if (switcher->loop && switcher->sources.num) {
switcher->current_index = switcher->sources.num - 1;
}
} else {
switcher->current_index--;
}
} else if (switch_to == SWITCH_RANDOM) {
if (switcher->sources.num <= 1) {
switcher->current_index = 0;
} else {
if (switcher->current_index < switcher->sources.num) {
const size_t r = (size_t)rand() % (switcher->sources.num - 1);
if (r < switcher->current_index)
switcher->current_index = r;
else
switcher->current_index = r + 1;
} else {
switcher->current_index = (size_t)rand() % switcher->sources.num;
}
}
} else if (switch_to == SWITCH_FIRST) {
switcher->current_index = 0;
} else if (switch_to == SWITCH_LAST) {
if (switcher->sources.num)
switcher->current_index = switcher->sources.num - 1;
}
switcher_index_changed(switcher);
}
void switcher_none_hotkey(void *data, obs_hotkey_id id, obs_hotkey_t *hotkey, bool pressed)
{
UNUSED_PARAMETER(id);
UNUSED_PARAMETER(hotkey);
struct switcher_info *switcher = data;
if (!pressed)
return;
switcher_switch_to(switcher, SWITCH_NONE);
}
void switcher_next_hotkey(void *data, obs_hotkey_id id, obs_hotkey_t *hotkey, bool pressed)
{
UNUSED_PARAMETER(id);
UNUSED_PARAMETER(hotkey);
struct switcher_info *switcher = data;
if (!pressed)
return;
switcher_switch_to(switcher, SWITCH_NEXT);
}
void switcher_previous_hotkey(void *data, obs_hotkey_id id, obs_hotkey_t *hotkey, bool pressed)
{
UNUSED_PARAMETER(id);
UNUSED_PARAMETER(hotkey);
struct switcher_info *switcher = data;
if (!pressed)
return;
switcher_switch_to(switcher, SWITCH_PREVIOUS);
}
void switcher_random_hotkey(void *data, obs_hotkey_id id, obs_hotkey_t *hotkey, bool pressed)
{
UNUSED_PARAMETER(id);
UNUSED_PARAMETER(hotkey);
struct switcher_info *switcher = data;
if (!pressed || !switcher->sources.num)
return;
switcher_switch_to(switcher, SWITCH_RANDOM);
}
void switcher_shuffle_hotkey(void *data, obs_hotkey_id id, obs_hotkey_t *hotkey, bool pressed)
{
UNUSED_PARAMETER(id);
UNUSED_PARAMETER(hotkey);
struct switcher_info *switcher = data;
if (!pressed || !switcher->sources.num)
return;
obs_data_t *settings = obs_source_get_settings(switcher->source);
if (!settings)
return;
obs_data_array_t *sources = obs_data_get_array(settings, S_SOURCES);
if (sources) {
const size_t count = obs_data_array_count(sources);
for (size_t i = 0; i < count; i++) {
obs_data_t *item = obs_data_array_item(sources, i);
obs_data_array_erase(sources, i);
obs_data_array_insert(sources, (size_t)rand() % count, item);
obs_data_release(item);
}
}
obs_source_update(switcher->source, settings);
obs_data_release(settings);
}
void switcher_first_hotkey(void *data, obs_hotkey_id id, obs_hotkey_t *hotkey, bool pressed)
{
UNUSED_PARAMETER(id);
UNUSED_PARAMETER(hotkey);
struct switcher_info *switcher = data;
if (!pressed)
return;
switcher_switch_to(switcher, SWITCH_FIRST);
}
void switcher_last_hotkey(void *data, obs_hotkey_id id, obs_hotkey_t *hotkey, bool pressed)
{
UNUSED_PARAMETER(id);
UNUSED_PARAMETER(hotkey);
struct switcher_info *switcher = data;
if (!pressed)
return;
switcher_switch_to(switcher, SWITCH_LAST);
}
void switcher_switch_source_hotkey(void *data, obs_hotkey_id id, obs_hotkey_t *hotkey, bool pressed)
{
UNUSED_PARAMETER(hotkey);
if (!pressed)
return;
struct switcher_info *switcher = data;
obs_source_t *source = NULL;
for (size_t i = 0; i < switcher->hotkeys.num; i++) {
if (switcher->hotkeys.array[i].hotkey_id == id)
source = switcher->hotkeys.array[i].source;
}
if (!source)
return;
for (size_t i = 0; i < switcher->sources.num; i++) {
if (switcher->sources.array[i] == source) {
switcher->current_index = i;
switcher_index_changed(switcher);
break;
}
}
}
static void switcher_update(void *data, obs_data_t *settings)
{
struct switcher_info *switcher = data;
switcher->log = obs_data_get_bool(settings, S_LOG);
switcher->loop = obs_data_get_bool(settings, S_LOOP);
switcher->current_source_file = obs_data_get_bool(settings, S_CURRENT_SOURCE_FILE);
if (switcher->current_source_file) {
bfree(switcher->current_source_file_path);
switcher->current_source_file_path = bstrdup(obs_data_get_string(settings, S_CURRENT_SOURCE_FILE_PATH));
switcher->current_source_file_interval = obs_data_get_int(settings, S_CURRENT_SOURCE_FILE_INTERVAL);
}
obs_data_array_t *sources = obs_data_get_array(settings, S_SOURCES);
if (sources) {
for (size_t i = 0; i < switcher->sources.num; i++) {
obs_source_release(switcher->sources.array[i]);
}
switcher->sources.num = 0;
const size_t count = obs_data_array_count(sources);
for (size_t i = 0; i < count; i++) {
obs_data_t *item = obs_data_array_item(sources, i);
const char *source_name = obs_data_get_string(item, "value");
obs_source_t *source = obs_get_source_by_name(source_name);
if (source) {
da_push_back(switcher->sources, &source);
bool found = false;
for (size_t j = 0; !found && j < switcher->hotkeys.num; j++) {
if (source == switcher->hotkeys.array[j].source)
found = true;
}
if (!found) {
struct switcher_hotkey_info h;
h.source = source;
h.hotkey_id = obs_hotkey_register_source(switcher->source, obs_source_get_name(source),
obs_source_get_name(source),
switcher_switch_source_hotkey, switcher);
da_push_back(switcher->hotkeys, &h);
}
}
obs_data_release(item);
}
size_t i = 0;
while (i < switcher->hotkeys.num) {
bool found = false;
for (size_t j = 0; !found && j < switcher->sources.num; j++) {
if (switcher->sources.array[j] == switcher->hotkeys.array[i].source)
found = true;
}
if (found) {
i++;
} else {
obs_hotkey_unregister(switcher->hotkeys.array[i].hotkey_id);
da_erase(switcher->hotkeys, i);
}
}
if (!switcher->sources.num) {
switcher->current_index = 0;
if (switcher->current_source) {
obs_source_release(switcher->current_source);
obs_source_remove_active_child(switcher->source, switcher->current_source);
switcher->current_source = NULL;
}
} else {
if (switcher->current_source) {
for (size_t i = 0; i < switcher->sources.num; i++) {
if (switcher->current_source == switcher->sources.array[i]) {
switcher->current_index = i;
break;
}
}
}
switcher_index_changed(switcher);
}
obs_data_array_release(sources);
}
switcher->time_switch = obs_data_get_bool(settings, S_TIME_SWITCH);
switcher->time_switch_duration = obs_data_get_int(settings, S_TIME_SWITCH_DURATION);
switcher->time_switch_between = obs_data_get_int(settings, S_TIME_SWITCH_BETWEEN);
switcher->time_switch_to = (int32_t)obs_data_get_int(settings, S_TIME_SWITCH_TO);
switcher->media_state_switch = obs_data_get_bool(settings, S_MEDIA_STATE_SWITCH);
switcher->media_switch_state = (int32_t)obs_data_get_int(settings, S_MEDIA_SWITCH_STATE);
switcher->media_state_switch_to = (int32_t)obs_data_get_int(settings, S_MEDIA_STATE_SWITCH_TO);
const char *transition_id = obs_data_get_string(settings, S_TRANSITION);
if (!transition_id || !strlen(transition_id)) {
obs_source_t *old_transition = switcher->transition;
switcher->transition = NULL;
obs_source_release(old_transition);
} else if (switcher->transition && strcmp(obs_source_get_id(switcher->transition), transition_id) == 0) {
} else {
obs_source_t *old_transition = switcher->transition;
obs_data_t *s = obs_data_get_obj(settings, S_TRANSITION_PROPERTIES);
if (s == NULL) { //for backwards compatibility
const char *j = obs_data_get_json(settings);
s = obs_data_create_from_json(j);
}
switcher->transition = obs_source_create_private(transition_id, obs_module_text("Transition"), s);
obs_data_release(s);
obs_source_release(old_transition);
}
if (switcher->transition) {
obs_transition_set_alignment(switcher->transition, (uint32_t)obs_data_get_int(settings, S_TRANSITION_ALIGNMENT));
obs_transition_set_scale_type(switcher->transition,
(enum obs_transition_scale_type)obs_data_get_int(settings, S_TRANSITION_SCALE));
}
const char *show_transition_id = obs_data_get_string(settings, S_SHOW_TRANSITION);
if (!show_transition_id || !strlen(show_transition_id)) {
obs_source_release(switcher->show_transition);
switcher->show_transition = NULL;
} else if (switcher->show_transition && strcmp(obs_source_get_id(switcher->show_transition), show_transition_id) == 0) {
} else {
obs_source_release(switcher->show_transition);
obs_data_t *s = obs_data_get_obj(settings, S_SHOW_TRANSITION_PROPERTIES);
switcher->show_transition = obs_source_create_private(show_transition_id, obs_module_text("ShowTransition"), s);
obs_data_release(s);
}
if (switcher->show_transition) {
obs_transition_set_alignment(switcher->show_transition,
(uint32_t)obs_data_get_int(settings, S_TRANSITION_ALIGNMENT));
obs_transition_set_scale_type(switcher->show_transition,
(enum obs_transition_scale_type)obs_data_get_int(settings, S_TRANSITION_SCALE));
}
const char *hide_transition_id = obs_data_get_string(settings, S_HIDE_TRANSITION);
if (!hide_transition_id || !strlen(hide_transition_id)) {
obs_source_release(switcher->hide_transition);
switcher->hide_transition = NULL;
} else if (switcher->hide_transition && strcmp(obs_source_get_id(switcher->hide_transition), hide_transition_id) == 0) {
} else {
obs_source_release(switcher->hide_transition);
obs_data_t *s = obs_data_get_obj(settings, S_HIDE_TRANSITION_PROPERTIES);
switcher->hide_transition = obs_source_create_private(hide_transition_id, obs_module_text("HideTransition"), s);
obs_data_release(s);
}
if (switcher->hide_transition) {
obs_transition_set_alignment(switcher->hide_transition,
(uint32_t)obs_data_get_int(settings, S_TRANSITION_ALIGNMENT));
obs_transition_set_scale_type(switcher->hide_transition,
(enum obs_transition_scale_type)obs_data_get_int(settings, S_TRANSITION_SCALE));
}
switcher->transition_duration = obs_data_get_int(settings, S_TRANSITION_DURATION);
switcher->transition_resize = obs_data_get_bool(settings, S_TRANSITION_RESIZE);
if (switcher->current_source_file && switcher->current_source_file_path && strlen(switcher->current_source_file_path) &&
!os_file_exists(switcher->current_source_file_path)) {
const char *source_name = switcher->current_source ? obs_source_get_name(switcher->current_source) : "";
os_quick_write_utf8_file(switcher->current_source_file_path, source_name, strlen(source_name), false);
}
}
static void current_slide_proc(void *data, calldata_t *cd)
{
struct switcher_info *switcher = data;
calldata_set_int(cd, "current_index", switcher->current_index);
}
static void total_slides_proc(void *data, calldata_t *cd)
{
struct switcher_info *switcher = data;
calldata_set_int(cd, "total_files", switcher->sources.num);
}
static void *switcher_create(obs_data_t *settings, obs_source_t *source)
{
UNUSED_PARAMETER(settings);
struct switcher_info *switcher = bzalloc(sizeof(struct switcher_info));
proc_handler_t *ph = obs_source_get_proc_handler(source);
switcher->source = source;
switcher->state = OBS_MEDIA_STATE_PLAYING;
da_init(switcher->sources);
da_init(switcher->hotkeys);
obs_hotkey_register_source(source, "none", obs_module_text("None"), switcher_none_hotkey, switcher);
obs_hotkey_register_source(source, "next", obs_module_text("Next"), switcher_next_hotkey, switcher);
obs_hotkey_register_source(source, "previous", obs_module_text("Previous"), switcher_previous_hotkey, switcher);
obs_hotkey_register_source(source, "random", obs_module_text("Random"), switcher_random_hotkey, switcher);
obs_hotkey_register_source(source, "shuffle", obs_module_text("Shuffle"), switcher_shuffle_hotkey, switcher);
obs_hotkey_register_source(source, "first", obs_module_text("First"), switcher_first_hotkey, switcher);
obs_hotkey_register_source(source, "last", obs_module_text("Last"), switcher_last_hotkey, switcher);
signal_handler_connect(obs_get_signal_handler(), "source_rename", switcher_source_rename, switcher);
proc_handler_add(ph, "void current_index(out int current_index)", current_slide_proc, switcher);
proc_handler_add(ph, "void total_files(out int total_files)", total_slides_proc, switcher);
switcher_update(switcher, settings);
return switcher;
}
static void switcher_destroy(void *data)
{
struct switcher_info *switcher = data;
signal_handler_disconnect(obs_get_signal_handler(), "source_rename", switcher_source_rename, switcher);
if (switcher->current_source) {
obs_source_release(switcher->current_source);
obs_source_remove_active_child(switcher->source, switcher->current_source);
switcher->current_source = NULL;
}
if (switcher->current_transition) {
obs_source_release(switcher->current_transition);
switcher->current_transition = NULL;
}
for (size_t i = 0; i < switcher->sources.num; i++) {
obs_source_release(switcher->sources.array[i]);
}
da_free(switcher->sources);
da_free(switcher->hotkeys);
obs_source_release(switcher->transition);
obs_source_release(switcher->show_transition);
obs_source_release(switcher->hide_transition);
bfree(switcher->current_source_file_path);
bfree(switcher);
}
bool switcher_transition_active(obs_source_t *transition)
{
if (!transition)
return false;
const float t = obs_transition_get_time(transition);
return t >= 0.0f && t < 1.0f;
}
static void switcher_video_render(void *data, gs_effect_t *effect)
{
UNUSED_PARAMETER(effect);
struct switcher_info *switcher = data;
if (switcher_transition_active(switcher->current_transition)) {
if (switcher->transition_resize) {
obs_source_t *source_a = obs_transition_get_source(switcher->current_transition, OBS_TRANSITION_SOURCE_A);
obs_source_t *source_b = obs_transition_get_source(switcher->current_transition, OBS_TRANSITION_SOURCE_B);
uint32_t cxa = 0;
uint32_t cya = 0;
uint32_t cxb = 0;
uint32_t cyb = 0;
if (source_a) {
cxa = obs_source_get_width(source_a);
cya = obs_source_get_height(source_a);
}
if (source_b) {
cxb = obs_source_get_width(source_b);
cyb = obs_source_get_height(source_b);
}
const float t = obs_transition_get_time(switcher->current_transition);
const uint32_t cx = (cxa && cxb) ? (uint32_t)((1.0f - t) * (float)cxa + t * (float)cxb) : cxa + cxb;
const uint32_t cy = (cya && cyb) ? (uint32_t)((1.0f - t) * (float)cya + t * (float)cyb) : cya + cyb;
obs_source_release(source_a);
obs_source_release(source_b);
obs_transition_set_size(switcher->current_transition, cx, cy);
}
obs_source_video_render(switcher->current_transition);
} else {
if (switcher->transition && switcher->transition_running == TRANSITION_NORMAL) {
const uint64_t t = obs_get_video_frame_time();
if (t > switcher->last_switch_time &&
t - switcher->last_switch_time > 10000000UL) { // wait 10 ms before start checking state
switcher->transition_running = TRANSITION_NONE;
obs_source_remove_active_child(switcher->source, switcher->transition);
obs_transition_force_stop(switcher->transition);
obs_transition_clear(switcher->transition);
if (switcher->current_source) {
obs_source_video_render(switcher->current_source);
}
} else {
obs_source_t *source = obs_transition_get_source(switcher->transition, OBS_TRANSITION_SOURCE_A);
if (source) {
obs_source_video_render(source);
obs_source_release(source);
} else {
obs_source_video_render(switcher->transition);
}
}
} else if (switcher->show_transition && switcher->transition_running == TRANSITION_SHOW) {
const uint64_t t = obs_get_video_frame_time();
if (t > switcher->last_switch_time &&
t - switcher->last_switch_time > 10000000UL) { // wait 10 ms before start checking state
switcher->transition_running = TRANSITION_NONE;
obs_source_remove_active_child(switcher->source, switcher->show_transition);
obs_transition_force_stop(switcher->show_transition);
obs_transition_clear(switcher->show_transition);
if (switcher->current_source) {
obs_source_video_render(switcher->current_source);
}
} else {
obs_source_t *source =
obs_transition_get_source(switcher->show_transition, OBS_TRANSITION_SOURCE_A);
if (source) {
obs_source_video_render(source);
obs_source_release(source);
} else {
obs_source_video_render(switcher->show_transition);
}
}
} else if (switcher->hide_transition && switcher->transition_running == TRANSITION_SHOW) {
const uint64_t t = obs_get_video_frame_time();
if (t > switcher->last_switch_time &&
t - switcher->last_switch_time > 10000000UL) { // wait 10 ms before start checking state
switcher->transition_running = TRANSITION_NONE;
obs_source_remove_active_child(switcher->source, switcher->hide_transition);
obs_transition_force_stop(switcher->hide_transition);
obs_transition_clear(switcher->hide_transition);
if (switcher->current_source) {
obs_source_video_render(switcher->current_source);
}
} else {
obs_source_t *source =
obs_transition_get_source(switcher->hide_transition, OBS_TRANSITION_SOURCE_A);
if (source) {
obs_source_video_render(source);
obs_source_release(source);
} else {
obs_source_video_render(switcher->hide_transition);
}
}
} else if (switcher->current_source) {
obs_source_video_render(switcher->current_source);
}
}
}
static bool switcher_audio_render(void *data, uint64_t *ts_out, struct obs_source_audio_mix *audio_output, uint32_t mixers,
size_t channels, size_t sample_rate)
{
UNUSED_PARAMETER(mixers);
UNUSED_PARAMETER(channels);
UNUSED_PARAMETER(sample_rate);
struct switcher_info *switcher = data;
obs_source_t *source = switcher_transition_active(switcher->current_transition) ? switcher->current_transition
: switcher->current_source;
if (!source)
return false;
uint64_t timestamp = 0;
if (!obs_source_audio_pending(source)) {
timestamp = obs_source_get_audio_timestamp(source);
struct obs_source_audio_mix child_audio;
obs_source_get_audio_mix(source, &child_audio);
memcpy(audio_output->output[0].data[0], child_audio.output[0].data[0], TOTAL_AUDIO_SIZE);
}
*ts_out = timestamp;
return true;
}
void prop_list_add_switch_to(obs_property_t *p)
{
obs_property_list_add_int(p, obs_module_text("None"), SWITCH_NONE);
obs_property_list_add_int(p, obs_module_text("Next"), SWITCH_NEXT);
obs_property_list_add_int(p, obs_module_text("Previous"), SWITCH_PREVIOUS);
obs_property_list_add_int(p, obs_module_text("First"), SWITCH_FIRST);
obs_property_list_add_int(p, obs_module_text("Last"), SWITCH_LAST);
obs_property_list_add_int(p, obs_module_text("Random"), SWITCH_RANDOM);
}
void prop_list_add_scales(obs_property_t *p)
{
obs_property_list_add_int(p, obs_module_text("TransitionScale.MaxOnly"), OBS_TRANSITION_SCALE_MAX_ONLY);
obs_property_list_add_int(p, obs_module_text("TransitionScale.Aspect"), OBS_TRANSITION_SCALE_ASPECT);
obs_property_list_add_int(p, obs_module_text("TransitionScale.Stretch"), OBS_TRANSITION_SCALE_STRETCH);
}
bool remove_prop(obs_properties_t *props, const char *name)
{
obs_property_t *p = obs_properties_get(props, name);
if (p) {
obs_properties_remove_by_name(props, name);
return true;
}
return false;
}
bool switcher_transition_changed(void *data, obs_properties_t *props, obs_property_t *property, obs_data_t *settings)
{
UNUSED_PARAMETER(property);
struct switcher_info *switcher = data;
const char *transition_id = obs_data_get_string(settings, S_TRANSITION);
const char *show_transition_id = obs_data_get_string(settings, S_SHOW_TRANSITION);
const char *hide_transition_id = obs_data_get_string(settings, S_HIDE_TRANSITION);
obs_properties_t *transition_group = obs_property_group_content(obs_properties_get(props, S_TRANSITION_GROUP));
if ((!transition_id || !strlen(transition_id)) && (!show_transition_id || !strlen(show_transition_id)) &&
(!hide_transition_id || !strlen(hide_transition_id))) {
if (switcher->transition) {
obs_source_release(switcher->transition);
switcher->transition = NULL;
}
if (switcher->show_transition) {
obs_source_release(switcher->show_transition);
switcher->show_transition = NULL;
}
if (switcher->hide_transition) {
obs_source_release(switcher->hide_transition);
switcher->hide_transition = NULL;
}
remove_prop(transition_group, S_TRANSITION_DURATION);
remove_prop(transition_group, S_TRANSITION_SCALE);
remove_prop(transition_group, S_TRANSITION_RESIZE);
remove_prop(transition_group, S_TRANSITION_ALIGNMENT);
return true;
}
if (transition_id && strlen(transition_id)) {
if (!switcher->transition || strcmp(obs_source_get_id(switcher->transition), transition_id) != 0) {
obs_source_t *old_transition = switcher->transition;
obs_data_t *s = obs_data_get_obj(settings, S_TRANSITION_PROPERTIES);
switcher->transition = obs_source_create_private(transition_id, obs_module_text("Transition"), s);
obs_data_release(s);
obs_transition_set_alignment(switcher->transition,
(uint32_t)obs_data_get_int(settings, S_TRANSITION_ALIGNMENT));
obs_transition_set_scale_type(switcher->transition, (enum obs_transition_scale_type)obs_data_get_int(
settings, S_TRANSITION_SCALE));
obs_source_release(old_transition);
}
} else if (switcher->transition) {
obs_source_t *old_transition = switcher->transition;
switcher->transition = NULL;
obs_source_release(old_transition);
}
if (show_transition_id && strlen(show_transition_id)) {
if (!switcher->show_transition || strcmp(obs_source_get_id(switcher->show_transition), show_transition_id) != 0) {
obs_source_t *old_transition = switcher->show_transition;
obs_data_t *s = obs_data_get_obj(settings, S_SHOW_TRANSITION_PROPERTIES);
switcher->show_transition =
obs_source_create_private(show_transition_id, obs_module_text("ShowTransition"), s);
obs_data_release(s);
obs_transition_set_alignment(switcher->show_transition,
(uint32_t)obs_data_get_int(settings, S_TRANSITION_ALIGNMENT));
obs_transition_set_scale_type(switcher->show_transition, (enum obs_transition_scale_type)obs_data_get_int(
settings, S_TRANSITION_SCALE));
obs_source_release(old_transition);
}
} else if (switcher->show_transition) {
obs_source_t *old_transition = switcher->show_transition;
switcher->show_transition = NULL;
obs_source_release(old_transition);
}
if (hide_transition_id && strlen(hide_transition_id)) {
if (!switcher->hide_transition || strcmp(obs_source_get_id(switcher->hide_transition), hide_transition_id) != 0) {
obs_source_t *old_transition = switcher->hide_transition;
obs_data_t *s = obs_data_get_obj(settings, S_SHOW_TRANSITION_PROPERTIES);
switcher->hide_transition =
obs_source_create_private(hide_transition_id, obs_module_text("HideTransition"), s);
obs_data_release(s);
obs_transition_set_alignment(switcher->hide_transition,
(uint32_t)obs_data_get_int(settings, S_TRANSITION_ALIGNMENT));
obs_transition_set_scale_type(switcher->hide_transition, (enum obs_transition_scale_type)obs_data_get_int(
settings, S_TRANSITION_SCALE));
obs_source_release(old_transition);
}
} else if (switcher->hide_transition) {
obs_source_t *old_transition = switcher->hide_transition;
switcher->hide_transition = NULL;
obs_source_release(old_transition);
}
obs_property_t *p = obs_properties_get(transition_group, S_TRANSITION_DURATION);
if (obs_transition_fixed(switcher->transition)) {
remove_prop(transition_group, S_TRANSITION_DURATION);
} else if (!p) {
p = obs_properties_add_int(transition_group, S_TRANSITION_DURATION, obs_module_text("Duration"), 50, 10000, 100);
obs_property_int_set_suffix(p, "ms");
}
p = obs_properties_get(transition_group, S_TRANSITION_SCALE);
if (!p) {
p = obs_properties_add_list(transition_group, S_TRANSITION_SCALE, obs_module_text("TransitionScaleType"),
OBS_COMBO_TYPE_LIST, OBS_COMBO_FORMAT_INT);
prop_list_add_scales(p);
}
p = obs_properties_get(transition_group, S_TRANSITION_RESIZE);
if (!p) {
p = obs_properties_add_bool(transition_group, S_TRANSITION_RESIZE, obs_module_text("Resize"));
}
p = obs_properties_get(transition_group, S_TRANSITION_ALIGNMENT);
if (!p) {
p = obs_properties_add_list(transition_group, S_TRANSITION_ALIGNMENT, obs_module_text("Alignment"),
OBS_COMBO_TYPE_LIST, OBS_COMBO_FORMAT_INT);
obs_property_list_add_int(p, obs_module_text("TopLeft"), OBS_ALIGN_TOP | OBS_ALIGN_LEFT);
obs_property_list_add_int(p, obs_module_text("Top"), OBS_ALIGN_TOP);
obs_property_list_add_int(p, obs_module_text("TopRight"), OBS_ALIGN_TOP | OBS_ALIGN_RIGHT);
obs_property_list_add_int(p, obs_module_text("Left"), OBS_ALIGN_LEFT);
obs_property_list_add_int(p, obs_module_text("Center"), OBS_ALIGN_CENTER);
obs_property_list_add_int(p, obs_module_text("Right"), OBS_ALIGN_RIGHT);
obs_property_list_add_int(p, obs_module_text("BottomLeft"), OBS_ALIGN_BOTTOM | OBS_ALIGN_LEFT);
obs_property_list_add_int(p, obs_module_text("Bottom"), OBS_ALIGN_BOTTOM);
obs_property_list_add_int(p, obs_module_text("BottomRight"), OBS_ALIGN_BOTTOM | OBS_ALIGN_RIGHT);
}
obs_property_set_enabled(obs_properties_get(transition_group, S_TRANSITION_PROPERTIES),
transition_id && strlen(transition_id) && obs_is_source_configurable(transition_id));
obs_property_set_enabled(obs_properties_get(transition_group, S_SHOW_TRANSITION_PROPERTIES),
show_transition_id && strlen(show_transition_id) &&
obs_is_source_configurable(show_transition_id));
obs_property_set_enabled(obs_properties_get(transition_group, S_HIDE_TRANSITION_PROPERTIES),
hide_transition_id && strlen(hide_transition_id) &&
obs_is_source_configurable(hide_transition_id));
return true;
}
static bool open_transition_properties(obs_properties_t *props, obs_property_t *property, void *data)
{
UNUSED_PARAMETER(props);
UNUSED_PARAMETER(property);
const struct switcher_info *switcher = data;
if (switcher->transition)
obs_frontend_open_source_properties(switcher->transition);
return false;
}
static bool open_show_transition_properties(obs_properties_t *props, obs_property_t *property, void *data)
{
UNUSED_PARAMETER(props);
UNUSED_PARAMETER(property);
const struct switcher_info *switcher = data;
if (switcher->show_transition)
obs_frontend_open_source_properties(switcher->show_transition);
return false;
}
static bool open_hide_transition_properties(obs_properties_t *props, obs_property_t *property, void *data)
{
UNUSED_PARAMETER(props);
UNUSED_PARAMETER(property);
const struct switcher_info *switcher = data;
if (switcher->hide_transition)
obs_frontend_open_source_properties(switcher->hide_transition);
return false;
}
static obs_properties_t *switcher_properties(void *data)
{
obs_property_t *p;
obs_properties_t *ppts = obs_properties_create();
obs_properties_add_editable_list(ppts, S_SOURCES, obs_module_text("Sources"), OBS_EDITABLE_LIST_TYPE_STRINGS, NULL, NULL);
obs_properties_add_bool(ppts, S_LOOP, obs_module_text("Loop"));
obs_properties_add_bool(ppts, S_LOG, obs_module_text("Log"));
obs_properties_t *tsppts = obs_properties_create();
p = obs_properties_add_int(tsppts, S_TIME_SWITCH_DURATION, obs_module_text("Duration"), 50, 1000000UL, 1000);
obs_property_int_set_suffix(p, "ms");
p = obs_properties_add_int(tsppts, S_TIME_SWITCH_BETWEEN, obs_module_text("Between"), 0, 1000000UL, 1000);
obs_property_int_set_suffix(p, "ms");
p = obs_properties_add_list(tsppts, S_TIME_SWITCH_TO, obs_module_text("SwitchTo"), OBS_COMBO_TYPE_LIST,
OBS_COMBO_FORMAT_INT);
prop_list_add_switch_to(p);
obs_properties_add_group(ppts, S_TIME_SWITCH, obs_module_text("TimeSwitch"), OBS_GROUP_CHECKABLE, tsppts);
obs_properties_t *mssppts = obs_properties_create();
p = obs_properties_add_list(mssppts, S_MEDIA_SWITCH_STATE, obs_module_text("MediaState"), OBS_COMBO_TYPE_LIST,
OBS_COMBO_FORMAT_INT);
obs_property_list_add_int(p, obs_module_text("Playing"), OBS_MEDIA_STATE_PLAYING);
obs_property_list_add_int(p, obs_module_text("Opening"), OBS_MEDIA_STATE_OPENING);
obs_property_list_add_int(p, obs_module_text("Buffering"), OBS_MEDIA_STATE_BUFFERING);
obs_property_list_add_int(p, obs_module_text("Paused"), OBS_MEDIA_STATE_PAUSED);
obs_property_list_add_int(p, obs_module_text("Stopped"), OBS_MEDIA_STATE_STOPPED);
obs_property_list_add_int(p, obs_module_text("Ended"), OBS_MEDIA_STATE_ENDED);
obs_property_list_add_int(p, obs_module_text("Error"), OBS_MEDIA_STATE_ERROR);
obs_property_list_add_int(p, obs_module_text("NotPlaying"), -OBS_MEDIA_STATE_PLAYING);
obs_property_list_add_int(p, obs_module_text("NotOpening"), -OBS_MEDIA_STATE_OPENING);
obs_property_list_add_int(p, obs_module_text("NotBuffering"), -OBS_MEDIA_STATE_BUFFERING);
obs_property_list_add_int(p, obs_module_text("NotPaused"), -OBS_MEDIA_STATE_PAUSED);
obs_property_list_add_int(p, obs_module_text("NotStopped"), -OBS_MEDIA_STATE_STOPPED);
obs_property_list_add_int(p, obs_module_text("NotEnded"), -OBS_MEDIA_STATE_ENDED);
obs_property_list_add_int(p, obs_module_text("NotError"), -OBS_MEDIA_STATE_ERROR);
p = obs_properties_add_list(mssppts, S_MEDIA_STATE_SWITCH_TO, obs_module_text("SwitchTo"), OBS_COMBO_TYPE_LIST,
OBS_COMBO_FORMAT_INT);
prop_list_add_switch_to(p);
obs_properties_add_group(ppts, S_MEDIA_STATE_SWITCH, obs_module_text("MediaStateSwitch"), OBS_GROUP_CHECKABLE, mssppts);
obs_properties_t *transition_group = obs_properties_create();
p = obs_properties_add_list(transition_group, S_TRANSITION, obs_module_text("TransitionType"), OBS_COMBO_TYPE_LIST,
OBS_COMBO_FORMAT_STRING);
obs_property_set_modified_callback2(p, switcher_transition_changed, data);
obs_property_list_add_string(p, obs_module_text("None"), "");
obs_properties_add_button(transition_group, S_TRANSITION_PROPERTIES, obs_module_text("Properties"),
open_transition_properties);
obs_property_t *sp = obs_properties_add_list(transition_group, S_SHOW_TRANSITION, obs_module_text("ShowTransitionType"),
OBS_COMBO_TYPE_LIST, OBS_COMBO_FORMAT_STRING);
obs_property_set_modified_callback2(sp, switcher_transition_changed, data);
obs_property_list_add_string(sp, obs_module_text("None"), "");
obs_properties_add_button(transition_group, S_SHOW_TRANSITION_PROPERTIES, obs_module_text("Properties"),
open_show_transition_properties);
obs_property_t *hp = obs_properties_add_list(transition_group, S_HIDE_TRANSITION, obs_module_text("HideTransitionType"),
OBS_COMBO_TYPE_LIST, OBS_COMBO_FORMAT_STRING);
obs_property_set_modified_callback2(hp, switcher_transition_changed, data);
obs_property_list_add_string(hp, obs_module_text("None"), "");
obs_properties_add_button(transition_group, S_HIDE_TRANSITION_PROPERTIES, obs_module_text("Properties"),
open_hide_transition_properties);
size_t idx = 0;
const char *id;
while (obs_enum_transition_types(idx++, &id)) {
const char *name = obs_source_get_display_name(id);
obs_property_list_add_string(p, name, id);
obs_property_list_add_string(sp, name, id);
obs_property_list_add_string(hp, name, id);
}
obs_properties_add_group(ppts, S_TRANSITION_GROUP, obs_module_text("Transition"), OBS_GROUP_NORMAL, transition_group);
obs_properties_t *file_group = obs_properties_create();
obs_properties_add_path(file_group, S_CURRENT_SOURCE_FILE_PATH, obs_module_text("File"), OBS_PATH_FILE_SAVE,
"Text Files (*.txt);;"
"All Files (*.*)",
NULL);
p = obs_properties_add_int(file_group, S_CURRENT_SOURCE_FILE_INTERVAL, obs_module_text("ReadInterval"), 0, 100000, 100);
obs_property_int_set_suffix(p, "ms");
obs_properties_add_group(ppts, S_CURRENT_SOURCE_FILE, obs_module_text("CurrentSourceFile"), OBS_GROUP_CHECKABLE,
file_group);
obs_properties_add_text(
ppts, "plugin_info",
"<a href=\"https://obsproject.com/forum/resources/source-switcher.941/\">Source Switcher</a> (" PROJECT_VERSION
") by <a href=\"https://www.exeldro.com\">Exeldro</a>",
OBS_TEXT_INFO);
return ppts;
}
void switcher_defaults(obs_data_t *settings)
{
obs_data_set_default_bool(settings, S_LOG, false);
obs_data_set_default_bool(settings, S_LOOP, true);
obs_data_set_default_int(settings, S_TIME_SWITCH_DURATION, 5000);
obs_data_set_default_int(settings, S_TIME_SWITCH_BETWEEN, 0);
obs_data_set_default_int(settings, S_TIME_SWITCH_TO, SWITCH_NEXT);
obs_data_set_default_int(settings, S_MEDIA_SWITCH_STATE, OBS_MEDIA_STATE_STOPPED);
obs_data_set_default_int(settings, S_MEDIA_STATE_SWITCH_TO, SWITCH_NEXT);
obs_data_set_default_int(settings, S_TRANSITION_DURATION, 1000);
obs_data_set_default_int(settings, S_TRANSITION_SCALE, OBS_TRANSITION_SCALE_ASPECT);
obs_data_set_default_int(settings, S_TRANSITION_ALIGNMENT, OBS_ALIGN_CENTER);
obs_data_set_default_bool(settings, S_TRANSITION_RESIZE, true);
}
uint32_t switcher_get_width(void *data)
{
struct switcher_info *switcher = data;