image-source: Add image slideshow source
This commit is contained in:
jp9000
@@ -1,11 +1,18 @@
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project(image-source)
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if(MSVC)
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set(image-source_PLATFORM_DEPS
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w32-pthreads)
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endif()
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set(image-source_SOURCES
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image-source.c)
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image-source.c
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obs-slideshow.c)
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add_library(image-source MODULE
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${image-source_SOURCES})
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target_link_libraries(image-source
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libobs)
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libobs
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${image-source_PLATFORM_DEPS})
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install_obs_plugin_with_data(image-source data)
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@@ -1,3 +1,13 @@
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ImageInput="Image"
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File="Image File"
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UnloadWhenNotShowing="Unload image when not showing"
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SlideShow="Image Slide Show"
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SlideShow.TransitionSpeed="Transition Speed (milliseconds)"
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SlideShow.SlideTime="Time Between Slides (milliseconds)"
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SlideShow.Files="Image Files"
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SlideShow.Transition="Transition"
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SlideShow.Transition.Cut="Cut"
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SlideShow.Transition.Fade="Fade"
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SlideShow.Transition.Swipe="Swipe"
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SlideShow.Transition.Slide="Slide"
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@@ -270,8 +270,11 @@ static struct obs_source_info image_source_info = {
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OBS_DECLARE_MODULE()
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OBS_MODULE_USE_DEFAULT_LOCALE("image-source", "en-US")
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extern struct obs_source_info slideshow_info;
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bool obs_module_load(void)
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{
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obs_register_source(&image_source_info);
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obs_register_source(&slideshow_info);
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return true;
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}
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451
plugins/image-source/obs-slideshow.c
Normal file
451
plugins/image-source/obs-slideshow.c
Normal file
@@ -0,0 +1,451 @@
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#include <obs-module.h>
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#include <util/threading.h>
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#include <util/darray.h>
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#include <util/dstr.h>
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#define do_log(level, format, ...) \
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blog(level, "[slideshow: '%s'] " format, \
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obs_source_get_name(ss->source), ##__VA_ARGS__)
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#define warn(format, ...) do_log(LOG_WARNING, format, ##__VA_ARGS__)
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#define S_TR_SPEED "transition_speed"
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#define S_SLIDE_TIME "slide_time"
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#define S_TRANSITION "transition"
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#define S_FILES "files"
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#define TR_CUT "cut"
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#define TR_FADE "fade"
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#define TR_SWIPE "swipe"
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#define TR_SLIDE "slide"
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#define T_(text) obs_module_text("SlideShow." text)
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#define T_TR_SPEED T_("TransitionSpeed")
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#define T_SLIDE_TIME T_("SlideTime")
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#define T_TRANSITION T_("Transition")
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#define T_FILES T_("Files")
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#define T_TR_(text) obs_module_text("SlideShow.Transition." text)
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#define T_TR_CUT T_TR_("Cut")
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#define T_TR_FADE T_TR_("Fade")
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#define T_TR_SWIPE T_TR_("Swipe")
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#define T_TR_SLIDE T_TR_("Slide")
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/* ------------------------------------------------------------------------- */
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struct image_file_data {
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char *path;
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obs_source_t *source;
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};
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struct slideshow {
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obs_source_t *source;
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float slide_time;
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uint32_t tr_speed;
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const char *tr_name;
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obs_source_t *transition;
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float elapsed;
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size_t cur_item;
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uint32_t cx;
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uint32_t cy;
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pthread_mutex_t mutex;
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DARRAY(struct image_file_data) files;
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};
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static obs_source_t *get_transition(struct slideshow *ss)
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{
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obs_source_t *tr;
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pthread_mutex_lock(&ss->mutex);
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tr = ss->transition;
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obs_source_addref(tr);
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pthread_mutex_unlock(&ss->mutex);
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return tr;
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}
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static obs_source_t *get_source(struct darray *array, const char *path)
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{
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DARRAY(struct image_file_data) files;
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obs_source_t *source = NULL;
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files.da = *array;
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for (size_t i = 0; i < files.num; i++) {
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const char *cur_path = files.array[i].path;
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if (strcmp(path, cur_path) == 0) {
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source = files.array[i].source;
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obs_source_addref(source);
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break;
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}
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}
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return source;
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}
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static obs_source_t *create_source_from_file(const char *file)
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{
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obs_data_t *settings = obs_data_create();
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obs_source_t *source;
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obs_data_set_string(settings, "file", file);
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obs_data_set_bool(settings, "unload", false);
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source = obs_source_create_private("image_source", NULL, settings);
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obs_data_release(settings);
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return source;
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}
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static void free_files(struct darray *array)
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{
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DARRAY(struct image_file_data) files;
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files.da = *array;
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for (size_t i = 0; i < files.num; i++) {
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bfree(files.array[i].path);
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obs_source_release(files.array[i].source);
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}
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da_free(files);
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}
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/* ------------------------------------------------------------------------- */
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static const char *ss_getname(void *unused)
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{
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UNUSED_PARAMETER(unused);
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return obs_module_text("SlideShow");
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}
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static void ss_update(void *data, obs_data_t *settings)
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{
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DARRAY(struct image_file_data) new_files;
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DARRAY(struct image_file_data) old_files;
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obs_source_t *new_tr = NULL;
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obs_source_t *old_tr = NULL;
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struct slideshow *ss = data;
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obs_data_array_t *array;
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const char *tr_name;
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uint32_t new_duration;
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uint32_t new_speed;
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uint32_t cx = 0;
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uint32_t cy = 0;
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size_t count;
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/* ------------------------------------- */
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/* get settings data */
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da_init(new_files);
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tr_name = obs_data_get_string(settings, S_TRANSITION);
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if (astrcmpi(tr_name, TR_CUT) == 0)
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tr_name = "cut_transition";
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else if (astrcmpi(tr_name, TR_SWIPE) == 0)
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tr_name = "swipe_transition";
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else if (astrcmpi(tr_name, TR_SLIDE) == 0)
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tr_name = "slide_transition";
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else
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tr_name = "fade_transition";
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if (!ss->tr_name || strcmp(tr_name, ss->tr_name) != 0)
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new_tr = obs_source_create_private(tr_name, NULL, NULL);
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new_duration = (uint32_t)obs_data_get_int(settings, S_SLIDE_TIME);
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new_speed = (uint32_t)obs_data_get_int(settings, S_TR_SPEED);
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array = obs_data_get_array(settings, S_FILES);
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count = obs_data_array_count(array);
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/* ------------------------------------- */
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/* create new list of sources */
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for (size_t i = 0; i < count; i++) {
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obs_data_t *item = obs_data_array_item(array, i);
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const char *path = obs_data_get_string(item, "value");
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struct image_file_data data;
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obs_source_t *new_source;
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pthread_mutex_lock(&ss->mutex);
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new_source = get_source(&ss->files.da, path);
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pthread_mutex_unlock(&ss->mutex);
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if (!new_source)
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new_source = get_source(&new_files.da, path);
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if (!new_source)
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new_source = create_source_from_file(path);
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if (new_source) {
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uint32_t new_cx = obs_source_get_width(new_source);
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uint32_t new_cy = obs_source_get_height(new_source);
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data.path = bstrdup(path);
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data.source = new_source;
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da_push_back(new_files, &data);
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if (new_cx > cx) cx = new_cx;
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if (new_cy > cy) cy = new_cy;
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}
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obs_data_release(item);
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}
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/* ------------------------------------- */
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/* update settings data */
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pthread_mutex_lock(&ss->mutex);
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old_files.da = ss->files.da;
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ss->files.da = new_files.da;
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if (new_tr) {
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old_tr = ss->transition;
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ss->transition = new_tr;
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}
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if (new_duration < 50)
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new_duration = 50;
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if (new_speed > (new_duration - 50))
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new_speed = new_duration - 50;
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ss->tr_speed = new_speed;
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ss->tr_name = tr_name;
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ss->slide_time = (float)new_duration / 1000.0f;
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pthread_mutex_unlock(&ss->mutex);
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/* ------------------------------------- */
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/* clean up and restart transition */
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if (old_tr)
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obs_source_release(old_tr);
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free_files(&old_files.da);
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ss->cx = cx;
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ss->cy = cy;
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ss->cur_item = 0;
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ss->elapsed = 0.0f;
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obs_transition_set_size(ss->transition, cx, cy);
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obs_transition_set_alignment(ss->transition, OBS_ALIGN_CENTER);
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obs_transition_set_scale_type(ss->transition,
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OBS_TRANSITION_SCALE_ASPECT);
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if (new_tr)
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obs_source_add_active_child(ss->source, new_tr);
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if (ss->files.num)
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obs_transition_start(ss->transition, OBS_TRANSITION_MODE_AUTO,
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ss->tr_speed, ss->files.array[0].source);
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obs_data_array_release(array);
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}
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static void ss_destroy(void *data)
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{
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struct slideshow *ss = data;
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obs_source_release(ss->transition);
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free_files(&ss->files.da);
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pthread_mutex_destroy(&ss->mutex);
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bfree(ss);
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}
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static void *ss_create(obs_data_t *settings, obs_source_t *source)
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{
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struct slideshow *ss = bzalloc(sizeof(*ss));
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ss->source = source;
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pthread_mutex_init_value(&ss->mutex);
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if (pthread_mutex_init(&ss->mutex, NULL) != 0)
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goto error;
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obs_source_update(source, NULL);
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UNUSED_PARAMETER(settings);
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return ss;
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error:
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ss_destroy(ss);
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return NULL;
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}
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static void ss_video_render(void *data, gs_effect_t *effect)
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{
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struct slideshow *ss = data;
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obs_source_t *transition = get_transition(ss);
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if (transition) {
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obs_source_video_render(transition);
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obs_source_release(transition);
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}
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UNUSED_PARAMETER(effect);
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}
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static void ss_video_tick(void *data, float seconds)
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{
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struct slideshow *ss = data;
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if (!ss->transition || !ss->slide_time)
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return;
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ss->elapsed += seconds;
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if (ss->elapsed > ss->slide_time) {
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ss->elapsed -= ss->slide_time;
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if (++ss->cur_item >= ss->files.num)
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ss->cur_item = 0;
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if (ss->files.num)
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obs_transition_start(ss->transition,
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OBS_TRANSITION_MODE_AUTO, ss->tr_speed,
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ss->files.array[ss->cur_item].source);
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}
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}
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static inline bool ss_audio_render_(obs_source_t *transition, uint64_t *ts_out,
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struct obs_source_audio_mix *audio_output,
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uint32_t mixers, size_t channels, size_t sample_rate)
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{
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struct obs_source_audio_mix child_audio;
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uint64_t source_ts;
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if (obs_source_audio_pending(transition))
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return false;
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source_ts = obs_source_get_audio_timestamp(transition);
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if (!source_ts)
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return false;
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obs_source_get_audio_mix(transition, &child_audio);
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for (size_t mix = 0; mix < MAX_AUDIO_MIXES; mix++) {
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if ((mixers & (1 << mix)) == 0)
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continue;
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for (size_t ch = 0; ch < channels; ch++) {
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float *out = audio_output->output[mix].data[ch];
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float *in = child_audio.output[mix].data[ch];
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memcpy(out, in, AUDIO_OUTPUT_FRAMES *
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MAX_AUDIO_CHANNELS * sizeof(float));
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}
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}
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*ts_out = source_ts;
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UNUSED_PARAMETER(sample_rate);
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return true;
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}
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static bool ss_audio_render(void *data, uint64_t *ts_out,
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struct obs_source_audio_mix *audio_output,
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uint32_t mixers, size_t channels, size_t sample_rate)
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{
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struct slideshow *ss = data;
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obs_source_t *transition = get_transition(ss);
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bool success;
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if (!transition)
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return false;
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success = ss_audio_render_(transition, ts_out, audio_output, mixers,
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channels, sample_rate);
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obs_source_release(transition);
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return success;
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}
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static void ss_enum_sources(void *data, obs_source_enum_proc_t cb, void *param)
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{
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struct slideshow *ss = data;
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pthread_mutex_lock(&ss->mutex);
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if (ss->transition)
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cb(ss->source, ss->transition, param);
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pthread_mutex_unlock(&ss->mutex);
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}
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static uint32_t ss_width(void *data)
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{
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struct slideshow *ss = data;
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return ss->transition ? ss->cx : 0;
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}
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static uint32_t ss_height(void *data)
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{
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struct slideshow *ss = data;
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return ss->transition ? ss->cy : 0;
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}
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static void ss_defaults(obs_data_t *settings)
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{
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obs_data_set_default_string(settings, S_TRANSITION, "fade");
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obs_data_set_default_int(settings, S_SLIDE_TIME, 8000);
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obs_data_set_default_int(settings, S_TR_SPEED, 700);
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}
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static const char *file_filter =
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"Image files (*.bmp *.tga *.png *.jpeg *.jpg *.gif)";
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static obs_properties_t *ss_properties(void *data)
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{
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obs_properties_t *ppts = obs_properties_create();
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struct slideshow *ss = data;
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struct dstr path = {0};
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obs_property_t *p;
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p = obs_properties_add_list(ppts, S_TRANSITION, T_TRANSITION,
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OBS_COMBO_TYPE_LIST, OBS_COMBO_FORMAT_STRING);
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obs_property_list_add_string(p, T_TR_CUT, TR_CUT);
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obs_property_list_add_string(p, T_TR_FADE, TR_FADE);
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obs_property_list_add_string(p, T_TR_SWIPE, TR_SWIPE);
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obs_property_list_add_string(p, T_TR_SLIDE, TR_SLIDE);
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obs_properties_add_int(ppts, S_SLIDE_TIME, T_SLIDE_TIME,
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50, 3600000, 50);
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obs_properties_add_int(ppts, S_TR_SPEED, T_TR_SPEED,
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0, 3600000, 50);
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if (ss) {
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pthread_mutex_lock(&ss->mutex);
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if (ss->files.num) {
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struct image_file_data *last = da_end(ss->files);
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const char *slash;
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dstr_copy(&path, last->path);
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dstr_replace(&path, "\\", "/");
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slash = strrchr(path.array, '/');
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if (slash)
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dstr_resize(&path, slash - path.array + 1);
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}
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pthread_mutex_unlock(&ss->mutex);
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}
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obs_properties_add_editable_list(ppts, S_FILES, T_FILES,
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OBS_EDITABLE_LIST_TYPE_FILES, file_filter, path.array);
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dstr_free(&path);
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return ppts;
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}
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struct obs_source_info slideshow_info = {
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.id = "slideshow",
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.type = OBS_SOURCE_TYPE_INPUT,
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.output_flags = OBS_SOURCE_VIDEO |
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OBS_SOURCE_CUSTOM_DRAW |
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OBS_SOURCE_COMPOSITE,
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.get_name = ss_getname,
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.create = ss_create,
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.destroy = ss_destroy,
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.update = ss_update,
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.video_render = ss_video_render,
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.video_tick = ss_video_tick,
|
||||
.audio_render = ss_audio_render,
|
||||
.enum_active_sources = ss_enum_sources,
|
||||
.get_width = ss_width,
|
||||
.get_height = ss_height,
|
||||
.get_defaults = ss_defaults,
|
||||
.get_properties = ss_properties
|
||||
};
|
||||
Reference in New Issue
Block a user