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make vp9 encoder static initializers thread safe

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Change-Id: If2d0888d13ebe52bc7c3b16f16319408a86ab6de
This commit is contained in:
Jim Bankoski 2014-12-18 15:50:46 -08:00
parent 5ccff43292
commit cd60930814
4 changed files with 8 additions and 4 deletions
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2
vp9/common/vp9_rtcd.c
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@ -16,5 +16,7 @@ void vpx_scale_rtcd(void);
void vp9_rtcd() {
vpx_scale_rtcd();
// TODO(JBB): Remove this once, by insuring that both the encoder and
// decoder setup functions are protected by once();
once(setup_rtcd_internal);
}

5
vp9/decoder/vp9_decoder.c
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@ -15,6 +15,7 @@
#include "./vpx_scale_rtcd.h"
#include "vpx_mem/vpx_mem.h"
#include "vpx_ports/vpx_once.h"
#include "vpx_ports/vpx_timer.h"
#include "vpx_scale/vpx_scale.h"
@ -34,7 +35,7 @@
#include "vp9/decoder/vp9_dthread.h"
static void initialize_dec() {
static int init_done = 0;
static volatile int init_done = 0;
if (!init_done) {
vp9_rtcd();
@ -85,7 +86,7 @@ VP9Decoder *vp9_decoder_create() {
sizeof(*cm->frame_contexts)));
pbi->need_resync = 1;
initialize_dec();
once(initialize_dec);
// Initialize the references to not point to any frame buffers.
vpx_memset(&cm->ref_frame_map, -1, sizeof(cm->ref_frame_map));

2
vp9/encoder/vp9_encoder.c
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@ -182,7 +182,7 @@ static void vp9_swap_mi_and_prev_mi(VP9_COMMON *cm) {
}
void vp9_initialize_enc() {
static int init_done = 0;
static volatile int init_done = 0;
if (!init_done) {
vp9_rtcd();

3
vp9/vp9_cx_iface.c
View File

@ -13,6 +13,7 @@
#include "./vpx_config.h"
#include "vpx/vpx_codec.h"
#include "vpx_ports/vpx_once.h"
#include "vpx/internal/vpx_codec_internal.h"
#include "./vpx_version.h"
#include "vp9/encoder/vp9_encoder.h"
@ -729,7 +730,7 @@ static vpx_codec_err_t encoder_init(vpx_codec_ctx_t *ctx,
}
priv->extra_cfg = default_extra_cfg;
vp9_initialize_enc();
once(vp9_initialize_enc);
res = validate_config(priv, &priv->cfg, &priv->extra_cfg);