From 52e08249f1cf2f6adfb562daf502e78f8af1ac76 Mon Sep 17 00:00:00 2001
From: jp9000 <obs.jim@gmail.com>
Date: Fri, 12 Sep 2014 00:35:21 -0700
Subject: [PATCH] Only render async frames to texture once per frame
This prevents multiple needless calls to obs_source_get_frame and other
functions. If the texture has already been processed, then just render
it as-is in any subsequent calls to obs_source_video_render.
---
libobs/obs-internal.h | 1 +
libobs/obs-source.c | 22 ++++++++++++++--------
2 files changed, 15 insertions(+), 8 deletions(-)
diff --git a/libobs/obs-internal.h b/libobs/obs-internal.h
index 3fe9a9d00..080afa8d3 100644
--- a/libobs/obs-internal.h
+++ b/libobs/obs-internal.h
@@ -293,6 +293,7 @@ struct obs_source {
uint64_t next_audio_ts_min;
uint64_t last_frame_ts;
uint64_t last_sys_timestamp;
+ bool async_rendered;
/* audio */
bool audio_failed;
diff --git a/libobs/obs-source.c b/libobs/obs-source.c
index 9816d5e9b..875197acc 100644
--- a/libobs/obs-source.c
+++ b/libobs/obs-source.c
@@ -503,6 +503,8 @@ void obs_source_video_tick(obs_source_t source, float seconds)
if (source->context.data && source->info.video_tick)
source->info.video_tick(source->context.data, seconds);
+
+ source->async_rendered = false;
}
/* unless the value is 3+ hours worth of frames, this won't overflow */
@@ -1031,18 +1033,22 @@ static void obs_source_draw_async_texture(struct obs_source *source)
static void obs_source_render_async_video(obs_source_t source)
{
- struct obs_source_frame *frame = obs_source_get_frame(source);
- if (frame) {
- if (!set_async_texture_size(source, frame))
- return;
- if (!update_async_texture(source, frame))
- return;
+ if (!source->async_rendered) {
+ struct obs_source_frame *frame = obs_source_get_frame(source);
+
+ source->async_rendered = true;
+ if (frame) {
+ if (!set_async_texture_size(source, frame))
+ return;
+ if (!update_async_texture(source, frame))
+ return;
+ }
+
+ obs_source_release_frame(source, frame);
}
if (source->async_texture)
obs_source_draw_async_texture(source);
-
- obs_source_release_frame(source, frame);
}
static inline void obs_source_render_filters(obs_source_t source)
--
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