aboutsummaryrefslogtreecommitdiffstats
path: root/libavcodec
diff options
context:
space:
mode:
authorAndreas Rheinhardt <andreas.rheinhardt@outlook.com>2023-09-18 01:08:02 +0200
committerAndreas Rheinhardt <andreas.rheinhardt@outlook.com>2024-04-19 13:18:04 +0200
commit267a763a55799a73453d90fc61d5fcf1ee7697d1 (patch)
tree349ee9ac3fa41d4f60e5fe21b6efb1d0d3e41447 /libavcodec
parent259234b46ff867b42df27c7801012eace071e6ad (diff)
downloadffmpeg-267a763a55799a73453d90fc61d5fcf1ee7697d1.tar.gz
avcodec/vp9: Replace atomic_store() by atomic_init()
This part of the code is not slice-threaded and they are semantically an initialization, so use atomic_init() instead of the potentially expensive atomic_store() (which uses sequentially consistent memory ordering). Also remove the initial initialization directly after allocating this array. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Diffstat (limited to 'libavcodec')
-rw-r--r--libavcodec/vp9.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/libavcodec/vp9.c b/libavcodec/vp9.c
index 443eb74c3c..3adfb98f2d 100644
--- a/libavcodec/vp9.c
+++ b/libavcodec/vp9.c
@@ -55,7 +55,6 @@ DEFINE_OFFSET_ARRAY(VP9Context, vp9_context, pthread_init_cnt,
static int vp9_alloc_entries(AVCodecContext *avctx, int n) {
VP9Context *s = avctx->priv_data;
- int i;
if (avctx->active_thread_type & FF_THREAD_SLICE) {
if (s->entries)
@@ -64,9 +63,6 @@ static int vp9_alloc_entries(AVCodecContext *avctx, int n) {
s->entries = av_malloc_array(n, sizeof(atomic_int));
if (!s->entries)
return AVERROR(ENOMEM);
-
- for (i = 0; i < n; i++)
- atomic_init(&s->entries[i], 0);
}
return 0;
}
@@ -1661,7 +1657,7 @@ static int vp9_decode_frame(AVCodecContext *avctx, AVFrame *frame,
#if HAVE_THREADS
if (avctx->active_thread_type & FF_THREAD_SLICE) {
for (i = 0; i < s->sb_rows; i++)
- atomic_store(&s->entries[i], 0);
+ atomic_init(&s->entries[i], 0);
}
#endif