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| author | Andreas Rheinhardt <andreas.rheinhardt@outlook.com> | 2023-09-18 01:08:02 +0200 |
|---|---|---|
| committer | Andreas Rheinhardt <andreas.rheinhardt@outlook.com> | 2024-04-19 13:18:04 +0200 |
| commit | 267a763a55799a73453d90fc61d5fcf1ee7697d1 (patch) | |
| tree | 349ee9ac3fa41d4f60e5fe21b6efb1d0d3e41447 /libavcodec | |
| parent | 259234b46ff867b42df27c7801012eace071e6ad (diff) | |
| download | ffmpeg-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.c | 6 |
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 |