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authorAngie Chiang <angiebird@google.com>2019-03-14 12:28:25 -0700
committerAngie Chiang <angiebird@google.com>2019-03-15 18:33:16 -0700
commitd887413eca3b683c2f3d110c01e7e680c7072548 (patch)
treef1ed5957f1c95cb90b5a1de2d00ef995bf545066
parent5df8d048c67af0e1f5f43eba1eae45fdf16805ff (diff)
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Fix race condition in wiener_var_rd_mult
Change-Id: Id5e9c2cbfe35809ac99a3bc9ba93cf462a6b1a34
-rw-r--r--vp9/encoder/vp9_encodeframe.c6
-rw-r--r--vp9/encoder/vp9_encoder.c6
-rw-r--r--vp9/encoder/vp9_encoder.h3
3 files changed, 15 insertions, 0 deletions
diff --git a/vp9/encoder/vp9_encodeframe.c b/vp9/encoder/vp9_encodeframe.c
index a0e531e3d..047b06b53 100644
--- a/vp9/encoder/vp9_encodeframe.c
+++ b/vp9/encoder/vp9_encodeframe.c
@@ -3595,9 +3595,15 @@ static int wiener_var_rdmult(VP9_COMP *cpi, BLOCK_SIZE bsize, int mi_row,
for (col = mb_col_start; col < mb_col_end; ++col)
wiener_variance += cpi->mb_wiener_variance[row * cm->mb_cols + col];
+#if CONFIG_MULTITHREAD
+ pthread_mutex_lock(&cpi->kmeans_mutex);
+#endif // CONFIG_MULTITHREAD
kmeans_data = &cpi->kmeans_data_arr[cpi->kmeans_data_size++];
kmeans_data->value = log(1 + wiener_variance);
kmeans_data->pos = mi_row * cpi->kmeans_data_stride + mi_col;
+#if CONFIG_MULTITHREAD
+ pthread_mutex_unlock(&cpi->kmeans_mutex);
+#endif // CONFIG_MULTITHREAD
if (wiener_variance)
wiener_variance /=
(mb_row_end - mb_row_start) * (mb_col_end - mb_col_start);
diff --git a/vp9/encoder/vp9_encoder.c b/vp9/encoder/vp9_encoder.c
index ccaa0815d..2a9a36f61 100644
--- a/vp9/encoder/vp9_encoder.c
+++ b/vp9/encoder/vp9_encoder.c
@@ -2593,6 +2593,9 @@ void vp9_remove_compressor(VP9_COMP *cpi) {
#endif
if (cpi->kmeans_data_arr_alloc) {
+#if CONFIG_MULTITHREAD
+ pthread_mutex_destroy(&cpi->kmeans_mutex);
+#endif
vpx_free(cpi->kmeans_data_arr);
}
@@ -7263,6 +7266,9 @@ int vp9_get_compressed_data(VP9_COMP *cpi, unsigned int *frame_flags,
if (cpi->kmeans_data_arr_alloc == 0) {
const int mi_cols = mi_cols_aligned_to_sb(cm->mi_cols);
const int mi_rows = mi_cols_aligned_to_sb(cm->mi_rows);
+#if CONFIG_MULTITHREAD
+ pthread_mutex_init(&cpi->kmeans_mutex, NULL);
+#endif
CHECK_MEM_ERROR(
cm, cpi->kmeans_data_arr,
vpx_calloc(mi_rows * mi_cols, sizeof(*cpi->kmeans_data_arr)));
diff --git a/vp9/encoder/vp9_encoder.h b/vp9/encoder/vp9_encoder.h
index 24ccaf99d..567f05934 100644
--- a/vp9/encoder/vp9_encoder.h
+++ b/vp9/encoder/vp9_encoder.h
@@ -602,6 +602,9 @@ typedef struct VP9_COMP {
TplDepFrame tpl_stats[MAX_ARF_GOP_SIZE];
YV12_BUFFER_CONFIG *tpl_recon_frames[REF_FRAMES];
EncFrameBuf enc_frame_buf[REF_FRAMES];
+#if CONFIG_MULTITHREAD
+ pthread_mutex_t kmeans_mutex;
+#endif
int kmeans_data_arr_alloc;
KMEANS_DATA *kmeans_data_arr;
int kmeans_data_size;