test: Add sync tests
The async source sync test verifies that async sources are playing back in sync properly, and the "sync pair (video)" and "sync pair (audio)" sources test the back-end syncing down to the exact sample via inserting audio data directly in to the back-end with system timestamps. For these sources, when the video is white, a C sinewave should be playing, and when the video is black audio is mute.master
jp9000
parent
5b20942247
commit
292a6e59f4
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@ -12,6 +12,9 @@ set(test-input_SOURCES
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test-filter.c
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test-input.c
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test-sinewave.c
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sync-async-source.c
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sync-pair-vid.c
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sync-pair-aud.c
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test-random.c)
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add_library(test-input MODULE
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@ -0,0 +1,143 @@
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#include <stdlib.h>
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#include <util/threading.h>
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#include <util/platform.h>
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#include <obs.h>
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struct async_sync_test {
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obs_source_t *source;
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os_event_t *stop_signal;
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pthread_t thread;
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bool initialized;
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};
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/* middle C */
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static const double rate = 261.63/48000.0;
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#ifndef M_PI
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#define M_PI 3.1415926535897932384626433832795
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#endif
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#define M_PI_X2 M_PI*2
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static const char *ast_getname(void *unused)
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{
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UNUSED_PARAMETER(unused);
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return "Sync Test (Async Video/Audio Source)";
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}
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static void ast_destroy(void *data)
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{
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struct async_sync_test *ast = data;
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if (ast->initialized) {
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os_event_signal(ast->stop_signal);
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pthread_join(ast->thread, NULL);
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}
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os_event_destroy(ast->stop_signal);
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bfree(ast);
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}
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static inline void fill_texture(uint32_t *pixels, uint32_t color)
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{
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size_t x, y;
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for (y = 0; y < 20; y++) {
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for (x = 0; x < 20; x++) {
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pixels[y*20 + x] = color;
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}
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}
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}
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static void *video_thread(void *data)
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{
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struct async_sync_test *ast = data;
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uint32_t sample_rate = audio_output_get_sample_rate(obs_get_audio());
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uint32_t *pixels = bmalloc(20 * 20 * sizeof(uint32_t));
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float *samples = bmalloc(sample_rate * sizeof(float));
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uint64_t cur_time = os_gettime_ns();
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bool whitelist = false;
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double cos_val = 0.0;
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uint64_t start_time = cur_time;
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struct obs_source_frame frame = {
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.data = {[0] = (uint8_t*)pixels},
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.linesize = {[0] = 20*4},
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.width = 20,
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.height = 20,
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.format = VIDEO_FORMAT_BGRX
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};
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struct obs_source_audio audio = {
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.speakers = SPEAKERS_MONO,
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.data = {[0] = (uint8_t*)samples},
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.samples_per_sec = sample_rate,
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.frames = sample_rate,
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.format = AUDIO_FORMAT_FLOAT
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};
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while (os_event_try(ast->stop_signal) == EAGAIN) {
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fill_texture(pixels, whitelist ? 0xFFFFFFFF : 0xFF000000);
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frame.timestamp = cur_time - start_time;
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audio.timestamp = cur_time - start_time;
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if (whitelist) {
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for (size_t i = 0; i < sample_rate; i++) {
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cos_val += rate * M_PI_X2;
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if (cos_val > M_PI_X2)
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cos_val -= M_PI_X2;
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samples[i] = (float)(cos(cos_val) * 0.5);
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}
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} else {
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for (size_t i = 0; i < sample_rate; i++)
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samples[i] = 0.0f;
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}
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obs_source_output_video(ast->source, &frame);
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obs_source_output_audio(ast->source, &audio);
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os_sleepto_ns(cur_time += 1000000000);
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whitelist = !whitelist;
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}
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bfree(pixels);
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bfree(samples);
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return NULL;
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}
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static void *ast_create(obs_data_t *settings, obs_source_t *source)
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{
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struct async_sync_test *ast = bzalloc(sizeof(struct async_sync_test));
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ast->source = source;
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if (os_event_init(&ast->stop_signal, OS_EVENT_TYPE_MANUAL) != 0) {
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ast_destroy(ast);
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return NULL;
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}
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if (pthread_create(&ast->thread, NULL, video_thread, ast) != 0) {
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ast_destroy(ast);
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return NULL;
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}
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ast->initialized = true;
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UNUSED_PARAMETER(settings);
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UNUSED_PARAMETER(source);
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return ast;
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}
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struct obs_source_info async_sync_test = {
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.id = "async_sync_test",
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.type = OBS_SOURCE_TYPE_INPUT,
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.output_flags = OBS_SOURCE_ASYNC_VIDEO |
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OBS_SOURCE_AUDIO,
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.get_name = ast_getname,
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.create = ast_create,
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.destroy = ast_destroy,
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};
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@ -0,0 +1,137 @@
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#include <math.h>
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#include <util/bmem.h>
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#include <util/threading.h>
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#include <util/platform.h>
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#include <obs.h>
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struct sync_pair_aud {
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bool initialized_thread;
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pthread_t thread;
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os_event_t *event;
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obs_source_t *source;
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};
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/* middle C */
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static const double rate = 261.63/48000.0;
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#ifndef M_PI
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#define M_PI 3.1415926535897932384626433832795
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#endif
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#define M_PI_X2 M_PI*2
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extern uint64_t starting_time;
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static inline bool whitelist_time(uint64_t ts, uint64_t interval,
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uint64_t fps_num, uint64_t fps_den)
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{
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if (!starting_time)
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return false;
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uint64_t count = (ts - starting_time) / interval;
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uint64_t sec = count * fps_den / fps_num;
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return sec % 2 == 1;
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}
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static void *sync_pair_aud_thread(void *pdata)
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{
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struct sync_pair_aud *spa = pdata;
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uint32_t sample_rate = audio_output_get_sample_rate(obs_get_audio());
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uint32_t frames = sample_rate / 100;
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uint64_t last_time = obs_get_video_frame_time();
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double cos_val = 0.0;
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float *samples = malloc(frames * sizeof(float));
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uint64_t interval = video_output_get_frame_time(obs_get_video());
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const struct video_output_info *voi =
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video_output_get_info(obs_get_video());
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uint64_t fps_num = voi->fps_num;
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uint64_t fps_den = voi->fps_den;
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while (os_event_try(spa->event) == EAGAIN) {
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if (!os_sleepto_ns(last_time += 10000000))
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last_time = obs_get_video_frame_time();
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for (uint64_t i = 0; i < frames; i++) {
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uint64_t ts = last_time +
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i * 1000000000ULL / sample_rate;
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if (whitelist_time(ts, interval, fps_num, fps_den)) {
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cos_val += rate * M_PI_X2;
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if (cos_val > M_PI_X2)
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cos_val -= M_PI_X2;
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samples[i] = (float)(cos(cos_val) * 0.5);
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} else {
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samples[i] = 0.0f;
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}
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}
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struct obs_source_audio data;
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data.data[0] = (uint8_t*)samples;
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data.frames = frames;
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data.speakers = SPEAKERS_MONO;
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data.samples_per_sec = sample_rate;
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data.timestamp = last_time;
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data.format = AUDIO_FORMAT_FLOAT;
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obs_source_output_audio(spa->source, &data);
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}
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free(samples);
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return NULL;
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}
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/* ------------------------------------------------------------------------- */
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static const char *sync_pair_aud_getname(void *unused)
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{
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UNUSED_PARAMETER(unused);
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return "Sync Test Pair (Audio)";
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}
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static void sync_pair_aud_destroy(void *data)
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{
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struct sync_pair_aud *spa = data;
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if (spa) {
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if (spa->initialized_thread) {
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void *ret;
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os_event_signal(spa->event);
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pthread_join(spa->thread, &ret);
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}
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os_event_destroy(spa->event);
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bfree(spa);
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}
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}
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static void *sync_pair_aud_create(obs_data_t *settings,
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obs_source_t *source)
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{
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struct sync_pair_aud *spa = bzalloc(sizeof(struct sync_pair_aud));
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spa->source = source;
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if (os_event_init(&spa->event, OS_EVENT_TYPE_MANUAL) != 0)
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goto fail;
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if (pthread_create(&spa->thread, NULL, sync_pair_aud_thread, spa) != 0)
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goto fail;
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spa->initialized_thread = true;
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UNUSED_PARAMETER(settings);
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return spa;
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fail:
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sync_pair_aud_destroy(spa);
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return NULL;
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}
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struct obs_source_info sync_audio = {
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.id = "sync_audio",
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.type = OBS_SOURCE_TYPE_INPUT,
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.output_flags = OBS_SOURCE_AUDIO,
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.get_name = sync_pair_aud_getname,
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.create = sync_pair_aud_create,
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.destroy = sync_pair_aud_destroy,
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};
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@ -0,0 +1,132 @@
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#include <stdlib.h>
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#include <util/threading.h>
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#include <util/platform.h>
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#include <graphics/graphics.h>
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#include <obs.h>
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struct sync_pair_vid {
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obs_source_t *source;
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gs_texture_t *tex;
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gs_texture_t *white;
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gs_texture_t *black;
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};
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uint64_t starting_time = 0;
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uint64_t last_frame = 0;
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static const char *sync_pair_vid_getname(void *unused)
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{
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UNUSED_PARAMETER(unused);
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return "Sync Test Pair (Video)";
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}
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static void sync_pair_vid_destroy(void *data)
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{
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struct sync_pair_vid *spv = data;
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obs_enter_graphics();
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gs_texture_destroy(spv->tex);
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gs_texture_destroy(spv->white);
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gs_texture_destroy(spv->black);
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obs_leave_graphics();
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bfree(spv);
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}
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static inline void fill_texture(uint32_t *pixels, uint32_t pixel)
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{
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size_t x, y;
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for (y = 0; y < 32; y++) {
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for (x = 0; x < 32; x++) {
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pixels[y*32 + x] = pixel;
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}
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}
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}
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static void *sync_pair_vid_create(obs_data_t *settings, obs_source_t *source)
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{
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struct sync_pair_vid *spv = bzalloc(sizeof(struct sync_pair_vid));
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spv->source = source;
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obs_enter_graphics();
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spv->tex = gs_texture_create(32, 32, GS_RGBA, 1, NULL, GS_DYNAMIC);
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spv->white = gs_texture_create(32, 32, GS_RGBA, 1, NULL, GS_DYNAMIC);
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spv->black = gs_texture_create(32, 32, GS_RGBA, 1, NULL, GS_DYNAMIC);
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uint8_t *ptr;
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uint32_t linesize;
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if (gs_texture_map(spv->white, &ptr, &linesize)) {
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fill_texture((uint32_t*)ptr, 0xFFFFFFFF);
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gs_texture_unmap(spv->white);
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}
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if (gs_texture_map(spv->black, &ptr, &linesize)) {
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fill_texture((uint32_t*)ptr, 0xFF000000);
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gs_texture_unmap(spv->black);
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}
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obs_leave_graphics();
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return spv;
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}
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static inline bool whitelist_time(uint64_t ts, uint64_t interval,
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uint64_t fps_num, uint64_t fps_den)
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{
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if (!starting_time)
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return false;
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uint64_t count = (ts - starting_time) / interval;
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uint64_t sec = count * fps_den / fps_num;
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return sec % 2 == 1;
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}
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static void sync_pair_vid_render(void *data, gs_effect_t *effect)
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{
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struct sync_pair_vid *spv = data;
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uint64_t ts = obs_get_video_frame_time();
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if (!starting_time)
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starting_time = ts;
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uint64_t interval = video_output_get_frame_time(obs_get_video());
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const struct video_output_info *voi =
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video_output_get_info(obs_get_video());
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uint64_t fps_num = voi->fps_num;
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uint64_t fps_den = voi->fps_den;
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bool whitelist = whitelist_time(ts, interval, fps_num, fps_den);
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#if 0
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if (last_frame != ts) {
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uint8_t *ptr;
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uint32_t linesize;
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if (gs_texture_map(spv->tex, &ptr, &linesize)) {
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fill_texture((uint32_t*)ptr, whitelist ? 0xFFFFFFFF : 0xFF000000);
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gs_texture_unmap(spv->tex);
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}
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last_frame = ts;
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}
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obs_source_draw(spv->tex, 0, 0, 0, 0, 0);
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#else
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obs_source_draw(whitelist ? spv->white : spv->black, 0, 0, 0, 0, 0);
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#endif
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}
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static uint32_t sync_pair_vid_size(void *data)
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{
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return 32;
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}
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struct obs_source_info sync_video = {
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.id = "sync_video",
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.type = OBS_SOURCE_TYPE_INPUT,
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.output_flags = OBS_SOURCE_VIDEO,
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.get_name = sync_pair_vid_getname,
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.create = sync_pair_vid_create,
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.destroy = sync_pair_vid_destroy,
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.video_render = sync_pair_vid_render,
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.get_width = sync_pair_vid_size,
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.get_height = sync_pair_vid_size,
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};
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@ -5,11 +5,17 @@ OBS_DECLARE_MODULE()
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extern struct obs_source_info test_random;
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extern struct obs_source_info test_sinewave;
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extern struct obs_source_info test_filter;
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extern struct obs_source_info async_sync_test;
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extern struct obs_source_info sync_video;
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extern struct obs_source_info sync_audio;
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bool obs_module_load(void)
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{
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obs_register_source(&test_random);
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obs_register_source(&test_sinewave);
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obs_register_source(&test_filter);
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obs_register_source(&async_sync_test);
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obs_register_source(&sync_video);
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obs_register_source(&sync_audio);
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return true;
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}
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