rtc: Avoid scene detection on resize
Don't enter scene detection under external resize.
Add rc->prev_coded_width/height to track the
previous encoded frame eweight/height.
The rc is part of layer context so this will be
per spatial layer for SVC.
This fixes the buffer overflow issue below.
Bug: chromium:1393384
Change-Id: I4b11818a27c439c2d2c42036dff7b8777f70a86e
(cherry picked from commit bee1caded272127a6d6b70ac79479083d183d5d0)
diff --git a/av1/encoder/ratectrl.c b/av1/encoder/ratectrl.c
index 85e7d79..834c930 100644
--- a/av1/encoder/ratectrl.c
+++ b/av1/encoder/ratectrl.c
@@ -2159,6 +2159,8 @@
if (current_frame->frame_type == KEY_FRAME) rc->frames_since_key = 0;
if (cpi->refresh_frame.golden_frame)
rc->frame_num_last_gf_refresh = current_frame->frame_number;
+ rc->prev_coded_width = cm->width;
+ rc->prev_coded_height = cm->height;
// if (current_frame->frame_number == 1 && cm->show_frame)
/*
rc->this_frame_target =
@@ -2175,6 +2177,8 @@
cpi->rc.rc_2_frame = 0;
cpi->rc.rc_1_frame = 0;
cpi->rc.prev_avg_frame_bandwidth = cpi->rc.avg_frame_bandwidth;
+ cpi->rc.prev_coded_width = cpi->common.width;
+ cpi->rc.prev_coded_height = cpi->common.height;
}
int av1_find_qindex(double desired_q, aom_bit_depth_t bit_depth,
@@ -3162,8 +3166,15 @@
}
}
// Check for scene change: for SVC check on base spatial layer only.
- if (cpi->sf.rt_sf.check_scene_detection && svc->spatial_layer_id == 0)
- rc_scene_detection_onepass_rt(cpi, frame_input);
+ if (cpi->sf.rt_sf.check_scene_detection && svc->spatial_layer_id == 0) {
+ if (rc->prev_coded_width == cm->width &&
+ rc->prev_coded_height == cm->height) {
+ rc_scene_detection_onepass_rt(cpi, frame_input);
+ } else if (cpi->src_sad_blk_64x64) {
+ aom_free(cpi->src_sad_blk_64x64);
+ cpi->src_sad_blk_64x64 = NULL;
+ }
+ }
// Check for dynamic resize, for single spatial layer for now.
// For temporal layers only check on base temporal layer.
if (cpi->oxcf.resize_cfg.resize_mode == RESIZE_DYNAMIC) {
diff --git a/av1/encoder/ratectrl.h b/av1/encoder/ratectrl.h
index 3e41283..06a1176 100644
--- a/av1/encoder/ratectrl.h
+++ b/av1/encoder/ratectrl.h
@@ -258,6 +258,9 @@
double frame_level_rate_correction_factors[RATE_FACTOR_LEVELS];
int frame_num_last_gf_refresh;
+
+ int prev_coded_width;
+ int prev_coded_height;
/*!\endcond */
} RATE_CONTROL;