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replay-source.c
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#include <obs-module.h>
#include <graphics/image-file.h>
#include <util/platform.h>
#include <util/dstr.h>
#include <util/threading.h>
#include <media-io/video-io.h>
#include <media-io/video-frame.h>
#include <media-io/video-scaler.h>
#include <obs-frontend-api.h>
#include "replay.h"
#include <inttypes.h>
#include <string.h>
#define VISIBILITY_ACTION_RESTART 0
#define VISIBILITY_ACTION_PAUSE 1
#define VISIBILITY_ACTION_CONTINUE 2
#define VISIBILITY_ACTION_NONE 3
#define END_ACTION_HIDE 0
#define END_ACTION_PAUSE 1
#define END_ACTION_LOOP 2
#define END_ACTION_REVERSE 3
#define END_ACTION_HIDE_ALL 4
#define END_ACTION_PAUSE_ALL 5
#define END_ACTION_LOOP_ALL 6
#define END_ACTION_REVERSE_ALL 7
enum saving_status {
SAVING_STATUS_NONE = 0,
SAVING_STATUS_STARTING = 1,
SAVING_STATUS_STARTING2 = 2,
SAVING_STATUS_SAVING = 3,
SAVING_STATUS_STOPPING = 4
};
struct replay {
struct obs_source_frame **video_frames;
uint64_t video_frame_count;
struct obs_audio_data *audio_frames;
struct audio_convert_info oai;
uint64_t audio_frame_count;
uint64_t first_frame_timestamp;
uint64_t last_frame_timestamp;
uint64_t duration;
int64_t trim_front;
int64_t trim_end;
};
struct replay_source {
obs_source_t *source;
obs_source_t *source_filter;
obs_source_t *source_audio_filter;
char *source_name;
char *source_audio_name;
float speed_percent;
bool backward;
bool backward_start;
int visibility_action;
int end_action;
char *next_scene_name;
bool next_scene_disabled;
char *load_switch_scene_name;
obs_hotkey_id replay_hotkey;
obs_hotkey_id next_hotkey;
obs_hotkey_id previous_hotkey;
obs_hotkey_id first_hotkey;
obs_hotkey_id last_hotkey;
obs_hotkey_id remove_hotkey;
obs_hotkey_id clear_hotkey;
obs_hotkey_id restart_hotkey;
obs_hotkey_id pause_hotkey;
obs_hotkey_id faster_hotkey;
obs_hotkey_id slower_hotkey;
obs_hotkey_id faster_by_5_hotkey;
obs_hotkey_id slower_by_5_hotkey;
obs_hotkey_id normal_or_faster_hotkey;
obs_hotkey_id normal_or_slower_hotkey;
obs_hotkey_id normal_speed_hotkey;
obs_hotkey_id half_speed_hotkey;
obs_hotkey_id double_speed_hotkey;
obs_hotkey_id trim_front_hotkey;
obs_hotkey_id trim_end_hotkey;
obs_hotkey_id trim_reset_hotkey;
obs_hotkey_id reverse_hotkey;
obs_hotkey_id forward_hotkey;
obs_hotkey_id backward_hotkey;
obs_hotkey_id forward_or_faster_hotkey;
obs_hotkey_id backward_or_faster_hotkey;
obs_hotkey_id save_hotkey;
obs_hotkey_id enable_hotkey;
obs_hotkey_id disable_hotkey;
obs_hotkey_id enable_next_scene_hotkey;
obs_hotkey_id disable_next_scene_hotkey;
obs_hotkey_id next_scene_current_hotkey;
obs_hotkey_id next_scene_hotkey;
obs_hotkey_id next_frame_hotkey;
obs_hotkey_id prev_frame_hotkey;
obs_hotkey_id next_n_frames_hotkey;
obs_hotkey_id prev_n_frames_hotkey;
uint64_t start_timestamp;
uint64_t previous_frame_timestamp;
uint64_t pause_timestamp;
int64_t start_delay;
int64_t retrieve_delay;
int64_t frame_step_count;
uint64_t retrieve_timestamp;
uint64_t threshold_timestamp;
struct obs_source_audio audio;
bool disabled;
bool play;
bool restart;
bool active;
bool end;
bool stepped;
enum saving_status saving_status;
int replay_position;
int replay_max;
#if LIBOBS_API_VER >= MAKE_SEMANTIC_VERSION(30, 1, 0)
struct deque replays;
#else
struct circlebuf replays;
#endif
struct replay current_replay;
struct replay saving_replay;
uint64_t video_frame_position;
uint64_t video_save_position;
/* stores the audio data */
uint64_t audio_frame_position;
struct obs_audio_data audio_output;
pthread_mutex_t video_mutex;
pthread_mutex_t audio_mutex;
pthread_mutex_t replay_mutex;
uint32_t known_width;
uint32_t known_height;
video_t *video_output;
obs_output_t *fileOutput;
obs_encoder_t *h264Recording;
audio_t *audio_t;
video_scaler_t *scaler;
bool lossless;
char *file_format;
char *directory;
uint64_t start_save_timestamp;
obs_encoder_t *aac;
char *progress_source_name;
char *text_source_name;
char *text_format;
bool sound_trigger;
bool filter_loaded;
bool free_after_save;
};
static void replace_text(struct dstr *str, size_t pos, size_t len, const char *new_text)
{
struct dstr front = {0};
struct dstr back = {0};
dstr_left(&front, str, pos);
dstr_right(&back, str, pos + len);
dstr_copy_dstr(str, &front);
dstr_cat(str, new_text);
dstr_cat_dstr(str, &back);
dstr_free(&front);
dstr_free(&back);
}
static void replay_update_text(struct replay_source *c)
{
if (!c->text_source_name || !c->text_format)
return;
obs_source_t *s = obs_get_source_by_name(c->text_source_name);
if (!s)
return;
struct dstr sf;
size_t pos = 0;
struct dstr buffer;
dstr_init(&buffer);
dstr_init_copy(&sf, c->text_format);
while (pos < sf.len) {
//duration, speed, index, count
const char *cmp = sf.array + pos;
if (astrcmp_n(cmp, "%SPEED%", 7) == 0) {
dstr_printf(&buffer, "%.1f", c->speed_percent * (c->backward ? -1.0f : 1.0f));
dstr_cat_ch(&buffer, '%');
replace_text(&sf, pos, 7, buffer.array);
pos += buffer.len;
} else if (astrcmp_n(cmp, "%PROGRESS%", 10) == 0) {
if (c->current_replay.video_frame_count && c->video_frame_position < c->current_replay.video_frame_count) {
dstr_printf(&buffer, "%.1f", c->video_frame_position * 100.0 / c->current_replay.video_frame_count);
dstr_cat_ch(&buffer, '%');
} else {
dstr_copy(&buffer, "");
}
replace_text(&sf, pos, 10, buffer.array);
pos += buffer.len;
} else if (astrcmp_n(cmp, "%COUNT%", 7) == 0) {
dstr_printf(&buffer, "%d", (int)(c->replays.size / sizeof c->current_replay));
replace_text(&sf, pos, 7, buffer.array);
pos += buffer.len;
} else if (astrcmp_n(cmp, "%INDEX%", 7) == 0) {
if (c->replays.size) {
dstr_printf(&buffer, "%d", c->replay_position + 1);
} else {
dstr_copy(&buffer, "0");
}
replace_text(&sf, pos, 7, buffer.array);
pos += buffer.len;
} else if (astrcmp_n(cmp, "%DURATION%", 10) == 0) {
if (c->replays.size) {
dstr_printf(&buffer, "%.2f", (double)c->current_replay.duration / (double)1000000000.0);
} else {
dstr_copy(&buffer, "");
}
replace_text(&sf, pos, 10, buffer.array);
pos += buffer.len;
} else if (astrcmp_n(cmp, "%TIME%", 6) == 0) {
if (c->replays.size && c->start_timestamp) {
int64_t time = 0;
if (c->pause_timestamp > c->start_timestamp) {
time = c->pause_timestamp - c->start_timestamp;
} else {
time = obs_get_video_frame_time() - c->start_timestamp;
}
if (c->speed_percent != 100.0f) {
time = (int64_t)((float)time * c->speed_percent / 100.0f);
}
dstr_printf(&buffer, "%.2f", (double)time / (double)1000000000.0);
} else {
dstr_copy(&buffer, "");
}
replace_text(&sf, pos, 6, buffer.array);
pos += buffer.len;
} else if (astrcmp_n(cmp, "%FPS%", 5) == 0) {
if (c->current_replay.video_frame_count && c->current_replay.duration) {
dstr_printf(&buffer, "%d",
(int)(c->current_replay.video_frame_count * 1000000000U / c->current_replay.duration));
} else {
dstr_copy(&buffer, "0");
}
replace_text(&sf, pos, 5, buffer.array);
pos += buffer.len;
} else {
pos++;
}
}
obs_data_t *settings = obs_data_create();
obs_data_set_string(settings, "text", sf.array);
obs_source_update(s, settings);
obs_data_release(settings);
dstr_free(&sf);
dstr_free(&buffer);
obs_source_release(s);
}
struct siu {
uint32_t crop_width;
obs_source_t *source;
};
static bool EnumSceneItem(obs_scene_t *scene, obs_sceneitem_t *item, void *data)
{
UNUSED_PARAMETER(scene);
struct siu *siu = data;
if (obs_sceneitem_get_source(item) == siu->source) {
struct obs_sceneitem_crop crop;
obs_sceneitem_get_crop(item, &crop);
crop.left = 0;
crop.right = siu->crop_width;
obs_sceneitem_set_crop(item, &crop);
} else if (obs_sceneitem_is_group(item)) {
obs_scene_enum_items(obs_sceneitem_group_get_scene(item), EnumSceneItem, data);
}
return true;
}
static bool EnumScenesItems(void *data, obs_source_t *source)
{
obs_scene_t *scene = obs_scene_from_source(source);
obs_scene_enum_items(scene, EnumSceneItem, data);
return true;
}
static void replay_update_progress_crop(struct replay_source *context, uint64_t t)
{
if (!context->progress_source_name)
return;
obs_source_t *s = obs_get_source_by_name(context->progress_source_name);
if (!s)
return;
const uint32_t width = obs_source_get_base_width(s);
if (width) {
struct siu siu;
siu.source = s;
if (t && context->current_replay.last_frame_timestamp && context->current_replay.duration) {
siu.crop_width = (uint32_t)((context->current_replay.last_frame_timestamp - t) * width /
context->current_replay.duration);
} else {
siu.crop_width = width;
}
obs_enum_scenes(EnumScenesItems, &siu);
}
obs_source_release(s);
}
static const char *replay_source_get_name(void *unused)
{
UNUSED_PARAMETER(unused);
return obs_module_text("ReplaySource");
}
static void EnumFilter(obs_source_t *source, obs_source_t *filter, void *data)
{
UNUSED_PARAMETER(source);
struct replay_source *c = data;
const char *filterName = obs_source_get_name(filter);
const char *sourceName = obs_source_get_name(c->source);
const char *id = obs_source_get_unversioned_id(filter);
if ((strcmp(REPLAY_FILTER_ASYNC_ID, id) == 0 || strcmp(REPLAY_FILTER_ID, id) == 0) && strcmp(filterName, sourceName) == 0)
c->source_filter = filter;
}
static void EnumAudioFilter(obs_source_t *source, obs_source_t *filter, void *data)
{
UNUSED_PARAMETER(source);
struct replay_source *c = data;
const char *filterName = obs_source_get_name(filter);
const char *sourceName = obs_source_get_name(c->source);
const char *id = obs_source_get_unversioned_id(filter);
if (strcmp(REPLAY_FILTER_AUDIO_ID, id) == 0 && strcmp(filterName, sourceName) == 0)
c->source_audio_filter = filter;
}
static void EnumAudioVideoFilter(obs_source_t *source, obs_source_t *filter, void *data)
{
UNUSED_PARAMETER(source);
struct replay_source *c = data;
const char *filterName = obs_source_get_name(filter);
const char *sourceName = obs_source_get_name(c->source);
const char *id = obs_source_get_unversioned_id(filter);
if ((strcmp(REPLAY_FILTER_AUDIO_ID, id) == 0 || strcmp(REPLAY_FILTER_ASYNC_ID, id) == 0 ||
strcmp(REPLAY_FILTER_ID, id) == 0) &&
strcmp(filterName, sourceName) == 0)
c->source_audio_filter = filter;
}
static inline void obs_source_signal(struct obs_source *source, const char *signal_source)
{
struct calldata data;
uint8_t stack[128];
calldata_init_fixed(&data, stack, sizeof(stack));
calldata_set_ptr(&data, "source", source);
if (signal_source)
signal_handler_signal(obs_source_get_signal_handler(source), signal_source, &data);
}
static void replay_reverse(struct replay_source *c, uint64_t os_timestamp)
{
c->backward = !c->backward;
if (c->end) {
c->end = false;
if (c->backward && c->current_replay.video_frame_count) {
c->video_frame_position = c->current_replay.video_frame_count - 1;
} else {
c->video_frame_position = 0;
}
}
const int64_t duration =
(int64_t)(((int64_t)c->current_replay.last_frame_timestamp - (int64_t)c->current_replay.first_frame_timestamp) *
100.0 / c->speed_percent);
int64_t play_duration = os_timestamp - c->start_timestamp;
if (play_duration > duration) {
play_duration = duration;
}
c->start_timestamp = os_timestamp - duration + play_duration;
}
static void replay_reverse_hotkey(void *data, obs_hotkey_id id, obs_hotkey_t *hotkey, bool pressed)
{
UNUSED_PARAMETER(id);
UNUSED_PARAMETER(hotkey);
struct replay_source *c = data;
if (pressed) {
const int64_t time = obs_get_video_frame_time();
if (c->pause_timestamp && !c->stepped) {
c->start_timestamp += time - c->pause_timestamp;
c->pause_timestamp = 0;
}
replay_reverse(c, time);
if (!c->play && !c->stepped) {
c->play = true;
obs_source_signal(c->source, "media_play");
}
}
}
static void replay_forward_hotkey(void *data, obs_hotkey_id id, obs_hotkey_t *hotkey, bool pressed)
{
UNUSED_PARAMETER(id);
UNUSED_PARAMETER(hotkey);
struct replay_source *c = data;
if (!pressed)
return;
const int64_t time = obs_get_video_frame_time();
if (c->pause_timestamp) {
c->start_timestamp += time - c->pause_timestamp;
c->pause_timestamp = 0;
}
if (!c->play) {
c->play = true;
obs_source_signal(c->source, "media_play");
}
if (c->end) {
c->end = false;
c->video_frame_position = 0;
c->start_timestamp = obs_get_video_frame_time();
c->backward = false;
} else if (c->backward) {
c->backward = false;
const int64_t duration = (int64_t)(((int64_t)c->current_replay.last_frame_timestamp -
(int64_t)c->current_replay.first_frame_timestamp) *
100.0 / c->speed_percent);
int64_t play_duration = time - c->start_timestamp;
if (play_duration > duration) {
play_duration = duration;
}
c->start_timestamp = time - duration + play_duration;
}
}
static void replay_backward_hotkey(void *data, obs_hotkey_id id, obs_hotkey_t *hotkey, bool pressed)
{
UNUSED_PARAMETER(id);
UNUSED_PARAMETER(hotkey);
struct replay_source *c = data;
if (!pressed)
return;
const int64_t time = obs_get_video_frame_time();
if (c->pause_timestamp) {
c->start_timestamp += time - c->pause_timestamp;
c->pause_timestamp = 0;
}
if (!c->play) {
c->play = true;
obs_source_signal(c->source, "media_play");
}
if (c->end || c->video_frame_position == 0) {
c->end = false;
if (c->current_replay.video_frame_count)
c->video_frame_position = c->current_replay.video_frame_count - 1;
c->start_timestamp = obs_get_video_frame_time();
c->backward = true;
} else if (!c->backward) {
c->backward = true;
const int64_t duration = (int64_t)(((int64_t)c->current_replay.last_frame_timestamp -
(int64_t)c->current_replay.first_frame_timestamp) *
100.0 / c->speed_percent);
int64_t play_duration = time - c->start_timestamp;
if (play_duration > duration) {
play_duration = duration;
}
c->start_timestamp = time - duration + play_duration;
}
}
static void replay_update_position(struct replay_source *context, bool lock)
{
if (lock)
pthread_mutex_lock(&context->video_mutex);
pthread_mutex_lock(&context->audio_mutex);
const int replay_count = (int)(context->replays.size / sizeof context->current_replay);
if (replay_count == 0) {
context->current_replay.video_frame_count = 0;
context->current_replay.video_frames = NULL;
context->current_replay.audio_frame_count = 0;
context->current_replay.audio_frames = NULL;
context->replay_position = 0;
obs_source_output_video(context->source, NULL);
pthread_mutex_unlock(&context->audio_mutex);
if (lock)
pthread_mutex_unlock(&context->video_mutex);
blog(LOG_INFO, "[replay_source: '%s'] No replay active", obs_source_get_name(context->source));
return;
}
if (context->replay_position >= replay_count) {
context->replay_position = replay_count - 1;
} else if (context->replay_position < 0) {
context->replay_position = 0;
}
memcpy(&context->current_replay,
circlebuf_data(&context->replays, context->replay_position * sizeof context->current_replay),
sizeof context->current_replay);
context->video_frame_position = 0;
context->audio_frame_position = 0;
context->start_timestamp = obs_get_video_frame_time();
context->backward = context->backward_start;
if (!context->backward && context->current_replay.trim_front != 0) {
context->start_timestamp -= (uint64_t)(context->current_replay.trim_front * 100.0 / context->speed_percent);
} else if (context->backward && context->current_replay.trim_end != 0) {
context->start_timestamp -= (uint64_t)(context->current_replay.trim_end * 100.0 / context->speed_percent);
}
context->pause_timestamp = 0;
if (context->backward && context->current_replay.video_frame_count) {
context->video_frame_position = context->current_replay.video_frame_count - 1;
}
if (context->active || context->visibility_action == VISIBILITY_ACTION_CONTINUE) {
if (!context->play && !context->stepped) {
context->play = true;
obs_source_signal(context->source, "media_play");
}
} else {
if (context->play) {
context->play = false;
obs_source_signal(context->source, "media_pause");
}
context->pause_timestamp = obs_get_video_frame_time();
}
pthread_mutex_unlock(&context->audio_mutex);
if (lock)
pthread_mutex_unlock(&context->video_mutex);
replay_update_text(context);
}
static void replay_free_replay(struct replay *replay, struct replay_source *context)
{
if (replay == &context->saving_replay) {
context->free_after_save = false;
} else if (replay->video_frames == context->saving_replay.video_frames && context->saving_status != SAVING_STATUS_NONE) {
context->free_after_save = true;
return;
}
for (uint64_t i = 0; i < replay->video_frame_count; i++) {
struct obs_source_frame *frame = replay->video_frames[i];
if (frame && os_atomic_dec_long(&frame->refs) <= 0) {
obs_source_frame_destroy(frame);
replay->video_frames[i] = NULL;
}
}
replay->video_frame_count = 0;
if (replay->video_frames) {
bfree(replay->video_frames);
replay->video_frames = NULL;
}
for (uint64_t i = 0; i < replay->audio_frame_count; i++) {
free_audio_packet(&replay->audio_frames[i]);
}
replay->audio_frame_count = 0;
if (replay->audio_frames) {
bfree(replay->audio_frames);
replay->audio_frames = NULL;
}
}
static void replay_purge_replays(struct replay_source *context)
{
if ((int)(context->replays.size / sizeof context->current_replay) > context->replay_max) {
pthread_mutex_lock(&context->replay_mutex);
const int replays_to_delete = (int)(context->replays.size / sizeof context->current_replay - context->replay_max);
if (replays_to_delete > context->replay_position) {
context->replay_position = replays_to_delete;
replay_update_position(context, true);
}
while ((int)(context->replays.size / sizeof context->current_replay) > context->replay_max) {
struct replay old_replay;
circlebuf_pop_front(&context->replays, &old_replay, sizeof context->current_replay);
replay_free_replay(&old_replay, context);
context->replay_position--;
}
if (context->replay_max > 1)
blog(LOG_INFO, "[replay_source: '%s'] switched to replay %i/%i", obs_source_get_name(context->source),
context->replay_position + 1, (int)(context->replays.size / sizeof context->current_replay));
pthread_mutex_unlock(&context->replay_mutex);
}
}
static void replay_retrieve(struct replay_source *context);
void replay_trigger_threshold(void *data)
{
struct replay_source *context = data;
const uint64_t os_time = obs_get_video_frame_time();
uint64_t duration = context->current_replay.duration;
if (context->speed_percent < 100.f)
duration = (uint64_t)(duration * 100.0 / context->speed_percent);
if (context->threshold_timestamp && context->threshold_timestamp + context->retrieve_delay + duration > os_time)
return;
context->threshold_timestamp = os_time;
blog(LOG_INFO, "[replay_source: '%s'] audio triggered", obs_source_get_name(context->source));
if (context->retrieve_delay > 0) {
context->retrieve_timestamp = obs_get_video_frame_time() + context->retrieve_delay;
} else {
replay_retrieve(context);
}
}
static void replay_source_defaults(obs_data_t *settings)
{
obs_data_set_default_int(settings, SETTING_DURATION, 5000);
obs_data_set_default_int(settings, SETTING_REPLAYS, 1);
obs_data_set_default_int(settings, SETTING_SPEED, 100);
obs_data_set_default_int(settings, SETTING_VISIBILITY_ACTION, VISIBILITY_ACTION_CONTINUE);
obs_data_set_default_int(settings, SETTING_START_DELAY, 0);
obs_data_set_default_int(settings, SETTING_FRAME_STEP_COUNT, 5);
obs_data_set_default_int(settings, SETTING_END_ACTION, END_ACTION_LOOP);
obs_data_set_default_bool(settings, SETTING_BACKWARD, false);
obs_data_set_default_string(settings, SETTING_FILE_FORMAT, "%CCYY-%MM-%DD %hh.%mm.%ss");
obs_data_set_default_bool(settings, SETTING_LOSSLESS, false);
}
static void replay_source_show(void *data)
{
struct replay_source *context = data;
UNUSED_PARAMETER(context);
}
static void replay_source_hide(void *data)
{
struct replay_source *context = data;
UNUSED_PARAMETER(context);
}
static void replay_source_active(void *data)
{
struct replay_source *context = data;
if (context->visibility_action == VISIBILITY_ACTION_PAUSE || context->visibility_action == VISIBILITY_ACTION_CONTINUE) {
if (!context->play && !context->end) {
context->play = true;
if (context->pause_timestamp) {
context->start_timestamp += obs_get_video_frame_time() - context->pause_timestamp;
context->pause_timestamp = 0;
}
obs_source_signal(context->source, "media_play");
}
} else if (context->visibility_action == VISIBILITY_ACTION_RESTART) {
context->play = true;
context->restart = true;
obs_source_signal(context->source, "media_restart");
}
context->active = true;
}
static void replay_source_deactive(void *data)
{
struct replay_source *context = data;
if (context->visibility_action == VISIBILITY_ACTION_PAUSE) {
if (context->play) {
context->play = false;
context->pause_timestamp = obs_get_video_frame_time();
obs_source_signal(context->source, "media_pause");
}
} else if (context->visibility_action == VISIBILITY_ACTION_RESTART) {
if (context->play) {
context->play = false;
obs_source_signal(context->source, "media_pause");
}
context->restart = true;
}
context->active = false;
}
void replay_restart(void *data)
{
struct replay_source *c = data;
c->restart = true;
c->play = true;
obs_source_signal(c->source, "media_restart");
}
void replay_stop(void *data)
{
struct replay_source *c = data;
c->play = false;
c->restart = true;
obs_source_media_ended(c->source);
}
void replay_next(void *data)
{
struct replay_source *context = data;
const int replay_count = (int)(context->replays.size / sizeof context->current_replay);
if (replay_count == 0)
return;
if (context->replay_position + 1 >= replay_count) {
context->replay_position = replay_count - 1;
} else {
context->replay_position++;
}
replay_update_position(context, true);
blog(LOG_INFO, "[replay_source: '%s'] next switched to replay %i/%i", obs_source_get_name(context->source),
context->replay_position + 1, replay_count);
}
void replay_previous(void *data)
{
struct replay_source *context = data;
if (context->replay_position <= 0) {
context->replay_position = 0;
} else {
context->replay_position--;
}
replay_update_position(context, true);
blog(LOG_INFO, "[replay_source: '%s'] previous hotkey switched to replay %i/%i", obs_source_get_name(context->source),
context->replay_position + 1, (int)(context->replays.size / sizeof context->current_replay));
}
static void replay_play_pause(void *data, bool pause)
{
struct replay_source *c = data;
if (pause) {
if (c->play) {
c->play = false;
c->pause_timestamp = obs_get_video_frame_time();
obs_source_signal(c->source, "media_pause");
} else {
c->play = true;
if (c->pause_timestamp) {
c->start_timestamp += obs_get_video_frame_time() - c->pause_timestamp;
c->pause_timestamp = 0;
}
obs_source_signal(c->source, "media_play");
}
} else {
const int64_t time = obs_get_video_frame_time();
if (c->pause_timestamp) {
c->start_timestamp += time - c->pause_timestamp;
c->pause_timestamp = 0;
}
c->play = true;
if (c->end || (c->video_frame_position == 0 && c->backward)) {
c->end = false;
if (c->backward) {
if (c->current_replay.video_frame_count)
c->video_frame_position = c->current_replay.video_frame_count - 1;
} else {
c->video_frame_position = 0;
}
c->start_timestamp = obs_get_video_frame_time();
}
obs_source_signal(c->source, "media_play");
}
}
static void replay_restart_hotkey(void *data, obs_hotkey_id id, obs_hotkey_t *hotkey, bool pressed)
{
UNUSED_PARAMETER(id);
UNUSED_PARAMETER(hotkey);
if (pressed)
replay_restart(data);
}
static void replay_pause_hotkey(void *data, obs_hotkey_id id, obs_hotkey_t *hotkey, bool pressed)
{
UNUSED_PARAMETER(id);
UNUSED_PARAMETER(hotkey);
if (pressed)
replay_play_pause(data, true);
}
static void InitFileOutputLossless(struct replay_source *context)
{
context->fileOutput = obs_output_create("ffmpeg_output", "replay_ffmpeg_output", NULL, NULL);
obs_data_t *foSettings = obs_data_create();
obs_data_set_string(foSettings, "format_name", "avi");
obs_data_set_string(foSettings, "video_encoder", "utvideo");
obs_data_set_string(foSettings, "audio_encoder", "pcm_s16le");
obs_output_update(context->fileOutput, foSettings);
obs_data_release(foSettings);
obs_output_set_media(context->fileOutput, context->video_output, context->audio_t);
}
static void InitFileOutput(struct replay_source *context)
{
context->fileOutput = obs_output_create("ffmpeg_muxer", "replay_ffmpeg_output", NULL, NULL);
context->h264Recording = obs_video_encoder_create("obs_x264", "replay_h264_recording", NULL, NULL);
obs_data_t *xsettings = obs_data_create();
obs_data_set_int(xsettings, "crf", 23);
obs_data_set_bool(xsettings, "use_bufsize", true);
obs_data_set_string(xsettings, "rate_control", "CRF");
obs_data_set_string(xsettings, "profile", "high");
obs_data_set_string(xsettings, "preset", "veryfast");
obs_encoder_update(context->h264Recording, xsettings);
obs_data_release(xsettings);
obs_encoder_set_video(context->h264Recording, context->video_output);
obs_output_set_video_encoder(context->fileOutput, context->h264Recording);
context->aac = obs_audio_encoder_create("ffmpeg_aac", "aac", NULL, 0, NULL);
obs_encoder_set_audio(context->aac, context->audio_t);
obs_output_set_audio_encoder(context->fileOutput, context->aac, 0);
}
static inline size_t convert_time_to_frames(size_t sample_rate, uint64_t t)
{
return (size_t)(t * (uint64_t)sample_rate / 1000000000ULL);
}
bool audio_input_callback(void *param, uint64_t start_ts_in, uint64_t end_ts_in, uint64_t *out_ts, uint32_t mixers,
struct audio_output_data *mixes)
{
UNUSED_PARAMETER(mixers);
struct replay_source *context = param;
*out_ts = start_ts_in;
if (!context->audio_t)
return true;
if (!context->start_save_timestamp || start_ts_in < context->start_save_timestamp)
return true;
uint64_t end_timestamp = context->start_save_timestamp + context->saving_replay.last_frame_timestamp -
context->saving_replay.first_frame_timestamp;
if (start_ts_in > end_timestamp)
return true;
size_t channels = audio_output_get_channels(context->audio_t);
size_t sample_rate = audio_output_get_sample_rate(context->audio_t);
pthread_mutex_lock(&context->audio_mutex);
uint64_t i = 0;
uint64_t duration_start = start_ts_in - context->start_save_timestamp;
uint64_t duration_end = end_ts_in - context->start_save_timestamp;
while (i < context->saving_replay.audio_frame_count &&
context->saving_replay.audio_frames[i].timestamp < context->saving_replay.first_frame_timestamp) {
i++;
}
if (i == context->saving_replay.audio_frame_count) {
pthread_mutex_unlock(&context->audio_mutex);
return true;
}
while (i < context->saving_replay.audio_frame_count &&
context->saving_replay.audio_frames[i].timestamp - context->saving_replay.first_frame_timestamp < duration_start) {
i++;
}
if (i == context->saving_replay.audio_frame_count) {
pthread_mutex_unlock(&context->audio_mutex);
return true;
}
if (i)
i--;
while (i < context->saving_replay.audio_frame_count &&
duration_end >= context->saving_replay.audio_frames[i].timestamp - context->saving_replay.first_frame_timestamp) {
size_t total_floats = AUDIO_OUTPUT_FRAMES;
size_t start_point = 0;
size_t start_point2 = 0;
if (context->saving_replay.audio_frames[i].timestamp - context->saving_replay.first_frame_timestamp >
duration_start) {
start_point = convert_time_to_frames(sample_rate, context->saving_replay.audio_frames[i].timestamp -
context->saving_replay.first_frame_timestamp -
duration_start);
if (start_point >= AUDIO_OUTPUT_FRAMES) {
pthread_mutex_unlock(&context->audio_mutex);
return true;
}
total_floats -= start_point;
} else if (context->saving_replay.audio_frames[i].timestamp - context->saving_replay.first_frame_timestamp <
duration_start) {
start_point2 = convert_time_to_frames(sample_rate,
duration_start - (context->saving_replay.audio_frames[i].timestamp -
context->saving_replay.first_frame_timestamp));
if (start_point2 >= context->saving_replay.audio_frames[i].frames) {
i++;
continue;
}
}
if (context->saving_replay.audio_frames[i].frames - start_point2 < total_floats) {
total_floats = context->saving_replay.audio_frames[i].frames - start_point2;
}
for (size_t mix_idx = 0; mix_idx < MAX_AUDIO_MIXES; mix_idx++) {
for (size_t ch = 0; ch < channels; ch++) {
register float *mix = mixes[mix_idx].data[ch];
register float *aud = (float *)context->saving_replay.audio_frames[i].data[ch];
register float *end;
if (!aud)
continue;
aud += start_point2;
mix += start_point;
end = aud + total_floats;
while (aud < end)
*(mix++) += *(aud++);
}
}
i++;
}
pthread_mutex_unlock(&context->audio_mutex);
return true;
}
void replay_save(struct replay_source *context)
{
if (context->current_replay.video_frame_count == 0) {
context->saving_status = SAVING_STATUS_NONE;
return;
}
if (context->saving_status != SAVING_STATUS_NONE && context->saving_status != SAVING_STATUS_STARTING)
return;
pthread_mutex_lock(&context->video_mutex);
memcpy(&context->saving_replay, &context->current_replay, sizeof context->current_replay);
const uint32_t width = context->saving_replay.video_frames[0]->width;
const uint32_t height = context->saving_replay.video_frames[0]->height;
if (context->known_width != width || context->known_height != height) {
video_t *t = obs_get_video();
const struct video_output_info *ovi = video_output_get_info(t);
struct video_output_info vi = {0};
vi.format = ovi->format;
vi.width = width;
vi.height = height;
vi.fps_den = ovi->fps_den;
vi.fps_num = ovi->fps_num;
vi.cache_size = 16;
vi.colorspace = ovi->colorspace;
vi.range = ovi->range;
vi.name = "ReplayOutput";
video_output_close(context->video_output);
const int r = video_output_open(&context->video_output, &vi);
if (r != VIDEO_OUTPUT_SUCCESS) {
context->saving_status = SAVING_STATUS_NONE;
pthread_mutex_unlock(&context->video_mutex);
if (context->free_after_save) {
replay_free_replay(&context->saving_replay, context);
}
return;
}
context->known_width = width;
context->known_height = height;
if (context->scaler) {
video_scaler_destroy(context->scaler);
context->scaler = NULL;
}
struct video_scale_info ssi;
ssi.format = context->saving_replay.video_frames[0]->format;
ssi.colorspace = ovi->colorspace;
ssi.range = ovi->range;
ssi.width = context->saving_replay.video_frames[0]->width;
ssi.height = context->saving_replay.video_frames[0]->height;
struct video_scale_info dsi;
dsi.format = vi.format;
dsi.colorspace = ovi->colorspace;
dsi.range = ovi->range;
dsi.height = height;
dsi.width = width;
video_scaler_create(&context->scaler, &dsi, &ssi, VIDEO_SCALE_DEFAULT);
}
if (!context->audio_t) {
struct audio_output_info oi;
oi.name = "ReplayAudio";
oi.speakers = context->saving_replay.oai.speakers;
oi.samples_per_sec = context->saving_replay.oai.samples_per_sec;
oi.format = context->saving_replay.oai.format;
oi.input_param = context;
oi.input_callback = audio_input_callback;
const int r = audio_output_open(&context->audio_t, &oi);
if (r != AUDIO_OUTPUT_SUCCESS) {
context->saving_status = SAVING_STATUS_NONE;
pthread_mutex_unlock(&context->video_mutex);
if (context->free_after_save) {
replay_free_replay(&context->saving_replay, context);
}
return;
}
}
if (!context->fileOutput) {
if (context->lossless) {
InitFileOutputLossless(context);
} else {
InitFileOutput(context);
}