shithub: libvpx

Download patch

ref: 8565a1c99a18d29a72fb716ad64614dc8e92499f
parent: 66cf8098e6adb62402ff5620ab4c8751dabb8f17
parent: 04d2e574252ef017dab722e56393eadab1236060
author: Jingning Han <jingning@google.com>
date: Thu Jul 2 00:24:53 EDT 2015

Merge "Use vpx prefix for codec independent threading functions"

--- a/test/vp9_thread_test.cc
+++ b/test/vp9_thread_test.cc
@@ -24,27 +24,27 @@
 
 using std::string;
 
-class VP9WorkerThreadTest : public ::testing::TestWithParam<bool> {
+class VPxWorkerThreadTest : public ::testing::TestWithParam<bool> {
  protected:
-  virtual ~VP9WorkerThreadTest() {}
+  virtual ~VPxWorkerThreadTest() {}
   virtual void SetUp() {
-    vp9_get_worker_interface()->init(&worker_);
+    vpx_get_worker_interface()->init(&worker_);
   }
 
   virtual void TearDown() {
-    vp9_get_worker_interface()->end(&worker_);
+    vpx_get_worker_interface()->end(&worker_);
   }
 
-  void Run(VP9Worker* worker) {
+  void Run(VPxWorker* worker) {
     const bool synchronous = GetParam();
     if (synchronous) {
-      vp9_get_worker_interface()->execute(worker);
+      vpx_get_worker_interface()->execute(worker);
     } else {
-      vp9_get_worker_interface()->launch(worker);
+      vpx_get_worker_interface()->launch(worker);
     }
   }
 
-  VP9Worker worker_;
+  VPxWorker worker_;
 };
 
 int ThreadHook(void* data, void* return_value) {
@@ -53,12 +53,12 @@
   return *reinterpret_cast<int*>(return_value);
 }
 
-TEST_P(VP9WorkerThreadTest, HookSuccess) {
+TEST_P(VPxWorkerThreadTest, HookSuccess) {
   // should be a no-op.
-  EXPECT_NE(vp9_get_worker_interface()->sync(&worker_), 0);
+  EXPECT_NE(vpx_get_worker_interface()->sync(&worker_), 0);
 
   for (int i = 0; i < 2; ++i) {
-    EXPECT_NE(vp9_get_worker_interface()->reset(&worker_), 0);
+    EXPECT_NE(vpx_get_worker_interface()->reset(&worker_), 0);
 
     int hook_data = 0;
     int return_value = 1;  // return successfully from the hook
@@ -67,17 +67,17 @@
     worker_.data2 = &return_value;
 
     Run(&worker_);
-    EXPECT_NE(vp9_get_worker_interface()->sync(&worker_), 0);
+    EXPECT_NE(vpx_get_worker_interface()->sync(&worker_), 0);
     EXPECT_FALSE(worker_.had_error);
     EXPECT_EQ(5, hook_data);
 
     // should be a no-op.
-    EXPECT_NE(vp9_get_worker_interface()->sync(&worker_), 0);
+    EXPECT_NE(vpx_get_worker_interface()->sync(&worker_), 0);
   }
 }
 
-TEST_P(VP9WorkerThreadTest, HookFailure) {
-  EXPECT_NE(vp9_get_worker_interface()->reset(&worker_), 0);
+TEST_P(VPxWorkerThreadTest, HookFailure) {
+  EXPECT_NE(vpx_get_worker_interface()->reset(&worker_), 0);
 
   int hook_data = 0;
   int return_value = 0;  // return failure from the hook
@@ -86,29 +86,29 @@
   worker_.data2 = &return_value;
 
   Run(&worker_);
-  EXPECT_FALSE(vp9_get_worker_interface()->sync(&worker_));
+  EXPECT_FALSE(vpx_get_worker_interface()->sync(&worker_));
   EXPECT_EQ(1, worker_.had_error);
 
   // Ensure _reset() clears the error and _launch() can be called again.
   return_value = 1;
-  EXPECT_NE(vp9_get_worker_interface()->reset(&worker_), 0);
+  EXPECT_NE(vpx_get_worker_interface()->reset(&worker_), 0);
   EXPECT_FALSE(worker_.had_error);
-  vp9_get_worker_interface()->launch(&worker_);
-  EXPECT_NE(vp9_get_worker_interface()->sync(&worker_), 0);
+  vpx_get_worker_interface()->launch(&worker_);
+  EXPECT_NE(vpx_get_worker_interface()->sync(&worker_), 0);
   EXPECT_FALSE(worker_.had_error);
 }
 
-TEST_P(VP9WorkerThreadTest, EndWithoutSync) {
+TEST_P(VPxWorkerThreadTest, EndWithoutSync) {
   // Create a large number of threads to increase the chances of detecting a
   // race. Doing more work in the hook is no guarantee as any race would occur
   // post hook execution in the main thread loop driver.
   static const int kNumWorkers = 64;
-  VP9Worker workers[kNumWorkers];
+  VPxWorker workers[kNumWorkers];
   int hook_data[kNumWorkers];
   int return_value[kNumWorkers];
 
   for (int n = 0; n < kNumWorkers; ++n) {
-    vp9_get_worker_interface()->init(&workers[n]);
+    vpx_get_worker_interface()->init(&workers[n]);
     return_value[n] = 1;  // return successfully from the hook
     workers[n].hook = ThreadHook;
     workers[n].data1 = &hook_data[n];
@@ -117,7 +117,7 @@
 
   for (int i = 0; i < 2; ++i) {
     for (int n = 0; n < kNumWorkers; ++n) {
-      EXPECT_NE(vp9_get_worker_interface()->reset(&workers[n]), 0);
+      EXPECT_NE(vpx_get_worker_interface()->reset(&workers[n]), 0);
       hook_data[n] = 0;
     }
 
@@ -126,16 +126,16 @@
     }
 
     for (int n = kNumWorkers - 1; n >= 0; --n) {
-      vp9_get_worker_interface()->end(&workers[n]);
+      vpx_get_worker_interface()->end(&workers[n]);
     }
   }
 }
 
-TEST(VP9WorkerThreadTest, TestInterfaceAPI) {
-  EXPECT_EQ(0, vp9_set_worker_interface(NULL));
-  EXPECT_TRUE(vp9_get_worker_interface() != NULL);
+TEST(VPxWorkerThreadTest, TestInterfaceAPI) {
+  EXPECT_EQ(0, vpx_set_worker_interface(NULL));
+  EXPECT_TRUE(vpx_get_worker_interface() != NULL);
   for (int i = 0; i < 6; ++i) {
-    VP9WorkerInterface winterface = *vp9_get_worker_interface();
+    VPxWorkerInterface winterface = *vpx_get_worker_interface();
     switch (i) {
       default:
       case 0: winterface.init = NULL; break;
@@ -145,7 +145,7 @@
       case 4: winterface.execute = NULL; break;
       case 5: winterface.end = NULL; break;
     }
-    EXPECT_EQ(0, vp9_set_worker_interface(&winterface));
+    EXPECT_EQ(0, vpx_set_worker_interface(&winterface));
   }
 }
 
@@ -202,21 +202,21 @@
 // hang.
 namespace impl {
 
-void Init(VP9Worker *const worker) { memset(worker, 0, sizeof(*worker)); }
-int Reset(VP9Worker *const /*worker*/) { return 1; }
-int Sync(VP9Worker *const worker) { return !worker->had_error; }
+void Init(VPxWorker *const worker) { memset(worker, 0, sizeof(*worker)); }
+int Reset(VPxWorker *const /*worker*/) { return 1; }
+int Sync(VPxWorker *const worker) { return !worker->had_error; }
 
-void Execute(VP9Worker *const worker) {
+void Execute(VPxWorker *const worker) {
   worker->had_error |= !worker->hook(worker->data1, worker->data2);
 }
 
-void Launch(VP9Worker *const worker) { Execute(worker); }
-void End(VP9Worker *const /*worker*/) {}
+void Launch(VPxWorker *const worker) { Execute(worker); }
+void End(VPxWorker *const /*worker*/) {}
 
 }  // namespace impl
 
-TEST(VP9WorkerThreadTest, TestSerialInterface) {
-  static const VP9WorkerInterface serial_interface = {
+TEST(VPxWorkerThreadTest, TestSerialInterface) {
+  static const VPxWorkerInterface serial_interface = {
     impl::Init, impl::Reset, impl::Sync, impl::Launch, impl::Execute, impl::End
   };
   // TODO(jzern): Avoid using a file that will use the row-based thread
@@ -225,13 +225,13 @@
   // progress in the row above before proceeding.
   static const char expected_md5[] = "b35a1b707b28e82be025d960aba039bc";
   static const char filename[] = "vp90-2-03-size-226x226.webm";
-  VP9WorkerInterface default_interface = *vp9_get_worker_interface();
+  VPxWorkerInterface default_interface = *vpx_get_worker_interface();
 
-  EXPECT_NE(vp9_set_worker_interface(&serial_interface), 0);
+  EXPECT_NE(vpx_set_worker_interface(&serial_interface), 0);
   EXPECT_EQ(expected_md5, DecodeFile(filename, 2));
 
   // Reset the interface.
-  EXPECT_NE(vp9_set_worker_interface(&default_interface), 0);
+  EXPECT_NE(vpx_set_worker_interface(&default_interface), 0);
   EXPECT_EQ(expected_md5, DecodeFile(filename, 2));
 }
 
@@ -309,6 +309,6 @@
 }
 #endif  // CONFIG_WEBM_IO
 
-INSTANTIATE_TEST_CASE_P(Synchronous, VP9WorkerThreadTest, ::testing::Bool());
+INSTANTIATE_TEST_CASE_P(Synchronous, VPxWorkerThreadTest, ::testing::Bool());
 
 }  // namespace
--- a/vp9/common/vp9_onyxc_int.h
+++ b/vp9/common/vp9_onyxc_int.h
@@ -80,7 +80,7 @@
 
   // frame_worker_owner indicates which FrameWorker owns this buffer. NULL means
   // that no FrameWorker owns, or is decoding, this buffer.
-  VP9Worker *frame_worker_owner;
+  VPxWorker *frame_worker_owner;
 
   // row and col indicate which position frame has been decoded to in real
   // pixel unit. They are reset to -1 when decoding begins and set to INT_MAX
--- a/vp9/common/vp9_thread_common.c
+++ b/vp9/common/vp9_thread_common.c
@@ -157,9 +157,9 @@
                                 VP9_COMMON *cm,
                                 struct macroblockd_plane planes[MAX_MB_PLANE],
                                 int start, int stop, int y_only,
-                                VP9Worker *workers, int nworkers,
+                                VPxWorker *workers, int nworkers,
                                 VP9LfSync *lf_sync) {
-  const VP9WorkerInterface *const winterface = vp9_get_worker_interface();
+  const VPxWorkerInterface *const winterface = vpx_get_worker_interface();
   // Number of superblock rows and cols
   const int sb_rows = mi_cols_aligned_to_sb(cm->mi_rows) >> MI_BLOCK_SIZE_LOG2;
   // Decoder may allocate more threads than number of tiles based on user's
@@ -186,10 +186,10 @@
   // because of contention. If the multithreading code changes in the future
   // then the number of workers used by the loopfilter should be revisited.
   for (i = 0; i < num_workers; ++i) {
-    VP9Worker *const worker = &workers[i];
+    VPxWorker *const worker = &workers[i];
     LFWorkerData *const lf_data = &lf_sync->lfdata[i];
 
-    worker->hook = (VP9WorkerHook)loop_filter_row_worker;
+    worker->hook = (VPxWorkerHook)loop_filter_row_worker;
     worker->data1 = lf_sync;
     worker->data2 = lf_data;
 
@@ -218,7 +218,7 @@
                               struct macroblockd_plane planes[MAX_MB_PLANE],
                               int frame_filter_level,
                               int y_only, int partial_frame,
-                              VP9Worker *workers, int num_workers,
+                              VPxWorker *workers, int num_workers,
                               VP9LfSync *lf_sync) {
   int start_mi_row, end_mi_row, mi_rows_to_filter;
 
--- a/vp9/common/vp9_thread_common.h
+++ b/vp9/common/vp9_thread_common.h
@@ -48,7 +48,7 @@
                               struct macroblockd_plane planes[MAX_MB_PLANE],
                               int frame_filter_level,
                               int y_only, int partial_frame,
-                              VP9Worker *workers, int num_workers,
+                              VPxWorker *workers, int num_workers,
                               VP9LfSync *lf_sync);
 
 void vp9_accumulate_frame_counts(struct VP9Common *cm,
--- a/vp9/decoder/vp9_decodeframe.c
+++ b/vp9/decoder/vp9_decodeframe.c
@@ -1259,7 +1259,7 @@
                                    const uint8_t *data,
                                    const uint8_t *data_end) {
   VP9_COMMON *const cm = &pbi->common;
-  const VP9WorkerInterface *const winterface = vp9_get_worker_interface();
+  const VPxWorkerInterface *const winterface = vpx_get_worker_interface();
   const int aligned_cols = mi_cols_aligned_to_sb(cm->mi_cols);
   const int tile_cols = 1 << cm->log2_tile_cols;
   const int tile_rows = 1 << cm->log2_tile_rows;
@@ -1272,7 +1272,7 @@
       pbi->lf_worker.data1 == NULL) {
     CHECK_MEM_ERROR(cm, pbi->lf_worker.data1,
                     vpx_memalign(32, sizeof(LFWorkerData)));
-    pbi->lf_worker.hook = (VP9WorkerHook)vp9_loop_filter_worker;
+    pbi->lf_worker.hook = (VPxWorkerHook)vp9_loop_filter_worker;
     if (pbi->max_threads > 1 && !winterface->reset(&pbi->lf_worker)) {
       vpx_internal_error(&cm->error, VPX_CODEC_ERROR,
                          "Loop filter thread creation failed");
@@ -1434,7 +1434,7 @@
                                       const uint8_t *data,
                                       const uint8_t *data_end) {
   VP9_COMMON *const cm = &pbi->common;
-  const VP9WorkerInterface *const winterface = vp9_get_worker_interface();
+  const VPxWorkerInterface *const winterface = vpx_get_worker_interface();
   const uint8_t *bit_reader_end = NULL;
   const int aligned_mi_cols = mi_cols_aligned_to_sb(cm->mi_cols);
   const int tile_cols = 1 << cm->log2_tile_cols;
@@ -1464,7 +1464,7 @@
     CHECK_MEM_ERROR(cm, pbi->tile_worker_info,
                     vpx_malloc(num_threads * sizeof(*pbi->tile_worker_info)));
     for (i = 0; i < num_threads; ++i) {
-      VP9Worker *const worker = &pbi->tile_workers[i];
+      VPxWorker *const worker = &pbi->tile_workers[i];
       ++pbi->num_tile_workers;
 
       winterface->init(worker);
@@ -1477,9 +1477,9 @@
 
   // Reset tile decoding hook
   for (n = 0; n < num_workers; ++n) {
-    VP9Worker *const worker = &pbi->tile_workers[n];
+    VPxWorker *const worker = &pbi->tile_workers[n];
     winterface->sync(worker);
-    worker->hook = (VP9WorkerHook)tile_worker_hook;
+    worker->hook = (VPxWorkerHook)tile_worker_hook;
     worker->data1 = &pbi->tile_worker_data[n];
     worker->data2 = &pbi->tile_worker_info[n];
   }
@@ -1529,7 +1529,7 @@
   while (n < tile_cols) {
     int i;
     for (i = 0; i < num_workers && n < tile_cols; ++i) {
-      VP9Worker *const worker = &pbi->tile_workers[i];
+      VPxWorker *const worker = &pbi->tile_workers[i];
       TileWorkerData *const tile_data = (TileWorkerData*)worker->data1;
       TileInfo *const tile = (TileInfo*)worker->data2;
       TileBuffer *const buf = &tile_buffers[0][n];
@@ -1561,7 +1561,7 @@
     }
 
     for (; i > 0; --i) {
-      VP9Worker *const worker = &pbi->tile_workers[i - 1];
+      VPxWorker *const worker = &pbi->tile_workers[i - 1];
       // TODO(jzern): The tile may have specific error data associated with
       // its vpx_internal_error_info which could be propagated to the main info
       // in cm. Additionally once the threads have been synced and an error is
@@ -2020,7 +2020,7 @@
   // If encoded in frame parallel mode, frame context is ready after decoding
   // the frame header.
   if (pbi->frame_parallel_decode && cm->frame_parallel_decoding_mode) {
-    VP9Worker *const worker = pbi->frame_worker_owner;
+    VPxWorker *const worker = pbi->frame_worker_owner;
     FrameWorkerData *const frame_worker_data = worker->data1;
     if (cm->refresh_frame_context) {
       context_updated = 1;
--- a/vp9/decoder/vp9_decoder.c
+++ b/vp9/decoder/vp9_decoder.c
@@ -118,7 +118,7 @@
 
   cm->error.setjmp = 0;
 
-  vp9_get_worker_interface()->init(&pbi->lf_worker);
+  vpx_get_worker_interface()->init(&pbi->lf_worker);
 
   return pbi;
 }
@@ -126,12 +126,12 @@
 void vp9_decoder_remove(VP9Decoder *pbi) {
   int i;
 
-  vp9_get_worker_interface()->end(&pbi->lf_worker);
+  vpx_get_worker_interface()->end(&pbi->lf_worker);
   vpx_free(pbi->lf_worker.data1);
   vpx_free(pbi->tile_data);
   for (i = 0; i < pbi->num_tile_workers; ++i) {
-    VP9Worker *const worker = &pbi->tile_workers[i];
-    vp9_get_worker_interface()->end(worker);
+    VPxWorker *const worker = &pbi->tile_workers[i];
+    vpx_get_worker_interface()->end(worker);
   }
   vpx_free(pbi->tile_worker_data);
   vpx_free(pbi->tile_worker_info);
@@ -311,7 +311,7 @@
 
   pbi->hold_ref_buf = 0;
   if (pbi->frame_parallel_decode) {
-    VP9Worker *const worker = pbi->frame_worker_owner;
+    VPxWorker *const worker = pbi->frame_worker_owner;
     vp9_frameworker_lock_stats(worker);
     frame_bufs[cm->new_fb_idx].frame_worker_owner = worker;
     // Reset decoding progress.
@@ -325,7 +325,7 @@
 
 
   if (setjmp(cm->error.jmp)) {
-    const VP9WorkerInterface *const winterface = vp9_get_worker_interface();
+    const VPxWorkerInterface *const winterface = vpx_get_worker_interface();
     int i;
 
     cm->error.setjmp = 0;
@@ -387,7 +387,7 @@
   if (pbi->frame_parallel_decode) {
     // Need to lock the mutex here as another thread may
     // be accessing this buffer.
-    VP9Worker *const worker = pbi->frame_worker_owner;
+    VPxWorker *const worker = pbi->frame_worker_owner;
     FrameWorkerData *const frame_worker_data = worker->data1;
     vp9_frameworker_lock_stats(worker);
 
--- a/vp9/decoder/vp9_decoder.h
+++ b/vp9/decoder/vp9_decoder.h
@@ -57,9 +57,9 @@
   // the same.
   RefCntBuffer *cur_buf;   //  Current decoding frame buffer.
 
-  VP9Worker *frame_worker_owner;   // frame_worker that owns this pbi.
-  VP9Worker lf_worker;
-  VP9Worker *tile_workers;
+  VPxWorker *frame_worker_owner;   // frame_worker that owns this pbi.
+  VPxWorker lf_worker;
+  VPxWorker *tile_workers;
   TileWorkerData *tile_worker_data;
   TileInfo *tile_worker_info;
   int num_tile_workers;
--- a/vp9/decoder/vp9_dthread.c
+++ b/vp9/decoder/vp9_dthread.c
@@ -17,7 +17,7 @@
 // #define DEBUG_THREAD
 
 // TODO(hkuang): Clean up all the #ifdef in this file.
-void vp9_frameworker_lock_stats(VP9Worker *const worker) {
+void vp9_frameworker_lock_stats(VPxWorker *const worker) {
 #if CONFIG_MULTITHREAD
   FrameWorkerData *const worker_data = worker->data1;
   pthread_mutex_lock(&worker_data->stats_mutex);
@@ -26,7 +26,7 @@
 #endif
 }
 
-void vp9_frameworker_unlock_stats(VP9Worker *const worker) {
+void vp9_frameworker_unlock_stats(VPxWorker *const worker) {
 #if CONFIG_MULTITHREAD
   FrameWorkerData *const worker_data = worker->data1;
   pthread_mutex_unlock(&worker_data->stats_mutex);
@@ -35,7 +35,7 @@
 #endif
 }
 
-void vp9_frameworker_signal_stats(VP9Worker *const worker) {
+void vp9_frameworker_signal_stats(VPxWorker *const worker) {
 #if CONFIG_MULTITHREAD
   FrameWorkerData *const worker_data = worker->data1;
 
@@ -59,7 +59,7 @@
 #endif
 
 // TODO(hkuang): Remove worker parameter as it is only used in debug code.
-void vp9_frameworker_wait(VP9Worker *const worker, RefCntBuffer *const ref_buf,
+void vp9_frameworker_wait(VPxWorker *const worker, RefCntBuffer *const ref_buf,
                           int row) {
 #if CONFIG_MULTITHREAD
   if (!ref_buf)
@@ -74,7 +74,7 @@
   {
     // Find the worker thread that owns the reference frame. If the reference
     // frame has been fully decoded, it may not have owner.
-    VP9Worker *const ref_worker = ref_buf->frame_worker_owner;
+    VPxWorker *const ref_worker = ref_buf->frame_worker_owner;
     FrameWorkerData *const ref_worker_data =
         (FrameWorkerData *)ref_worker->data1;
     const VP9Decoder *const pbi = ref_worker_data->pbi;
@@ -114,7 +114,7 @@
 
 void vp9_frameworker_broadcast(RefCntBuffer *const buf, int row) {
 #if CONFIG_MULTITHREAD
-  VP9Worker *worker = buf->frame_worker_owner;
+  VPxWorker *worker = buf->frame_worker_owner;
 
 #ifdef DEBUG_THREAD
   {
@@ -134,8 +134,8 @@
 #endif  // CONFIG_MULTITHREAD
 }
 
-void vp9_frameworker_copy_context(VP9Worker *const dst_worker,
-                                  VP9Worker *const src_worker) {
+void vp9_frameworker_copy_context(VPxWorker *const dst_worker,
+                                  VPxWorker *const src_worker) {
 #if CONFIG_MULTITHREAD
   FrameWorkerData *const src_worker_data = (FrameWorkerData *)src_worker->data1;
   FrameWorkerData *const dst_worker_data = (FrameWorkerData *)dst_worker->data1;
--- a/vp9/decoder/vp9_dthread.h
+++ b/vp9/decoder/vp9_dthread.h
@@ -44,15 +44,15 @@
   int frame_decoded;        // Finished decoding current frame.
 } FrameWorkerData;
 
-void vp9_frameworker_lock_stats(VP9Worker *const worker);
-void vp9_frameworker_unlock_stats(VP9Worker *const worker);
-void vp9_frameworker_signal_stats(VP9Worker *const worker);
+void vp9_frameworker_lock_stats(VPxWorker *const worker);
+void vp9_frameworker_unlock_stats(VPxWorker *const worker);
+void vp9_frameworker_signal_stats(VPxWorker *const worker);
 
 // Wait until ref_buf has been decoded to row in real pixel unit.
 // Note: worker may already finish decoding ref_buf and release it in order to
 // start decoding next frame. So need to check whether worker is still decoding
 // ref_buf.
-void vp9_frameworker_wait(VP9Worker *const worker, RefCntBuffer *const ref_buf,
+void vp9_frameworker_wait(VPxWorker *const worker, RefCntBuffer *const ref_buf,
                           int row);
 
 // FrameWorker broadcasts its decoding progress so other workers that are
@@ -60,7 +60,7 @@
 void vp9_frameworker_broadcast(RefCntBuffer *const buf, int row);
 
 // Copy necessary decoding context from src worker to dst worker.
-void vp9_frameworker_copy_context(VP9Worker *const dst_worker,
-                                  VP9Worker *const src_worker);
+void vp9_frameworker_copy_context(VPxWorker *const dst_worker,
+                                  VPxWorker *const src_worker);
 
 #endif  // VP9_DECODER_VP9_DTHREAD_H_
--- a/vp9/encoder/vp9_encoder.c
+++ b/vp9/encoder/vp9_encoder.c
@@ -2013,11 +2013,11 @@
 #endif
 
   for (t = 0; t < cpi->num_workers; ++t) {
-    VP9Worker *const worker = &cpi->workers[t];
+    VPxWorker *const worker = &cpi->workers[t];
     EncWorkerData *const thread_data = &cpi->tile_thr_data[t];
 
     // Deallocate allocated threads.
-    vp9_get_worker_interface()->end(worker);
+    vpx_get_worker_interface()->end(worker);
 
     // Deallocate allocated thread data.
     if (t < cpi->num_workers - 1) {
--- a/vp9/encoder/vp9_encoder.h
+++ b/vp9/encoder/vp9_encoder.h
@@ -497,7 +497,7 @@
 
   // Multi-threading
   int num_workers;
-  VP9Worker *workers;
+  VPxWorker *workers;
   struct EncWorkerData *tile_thr_data;
   VP9LfSync lf_row_sync;
 } VP9_COMP;
--- a/vp9/encoder/vp9_ethread.c
+++ b/vp9/encoder/vp9_ethread.c
@@ -69,7 +69,7 @@
 void vp9_encode_tiles_mt(VP9_COMP *cpi) {
   VP9_COMMON *const cm = &cpi->common;
   const int tile_cols = 1 << cm->log2_tile_cols;
-  const VP9WorkerInterface *const winterface = vp9_get_worker_interface();
+  const VPxWorkerInterface *const winterface = vpx_get_worker_interface();
   const int num_workers = MIN(cpi->oxcf.max_threads, tile_cols);
   int i;
 
@@ -94,7 +94,7 @@
                     sizeof(*cpi->tile_thr_data)));
 
     for (i = 0; i < allocated_workers; i++) {
-      VP9Worker *const worker = &cpi->workers[i];
+      VPxWorker *const worker = &cpi->workers[i];
       EncWorkerData *thread_data = &cpi->tile_thr_data[i];
 
       ++cpi->num_workers;
@@ -132,10 +132,10 @@
   }
 
   for (i = 0; i < num_workers; i++) {
-    VP9Worker *const worker = &cpi->workers[i];
+    VPxWorker *const worker = &cpi->workers[i];
     EncWorkerData *thread_data;
 
-    worker->hook = (VP9WorkerHook)enc_worker_hook;
+    worker->hook = (VPxWorkerHook)enc_worker_hook;
     worker->data1 = &cpi->tile_thr_data[i];
     worker->data2 = NULL;
     thread_data = (EncWorkerData*)worker->data1;
@@ -170,7 +170,7 @@
 
   // Encode a frame
   for (i = 0; i < num_workers; i++) {
-    VP9Worker *const worker = &cpi->workers[i];
+    VPxWorker *const worker = &cpi->workers[i];
     EncWorkerData *const thread_data = (EncWorkerData*)worker->data1;
 
     // Set the starting tile for each thread.
@@ -184,12 +184,12 @@
 
   // Encoding ends.
   for (i = 0; i < num_workers; i++) {
-    VP9Worker *const worker = &cpi->workers[i];
+    VPxWorker *const worker = &cpi->workers[i];
     winterface->sync(worker);
   }
 
   for (i = 0; i < num_workers; i++) {
-    VP9Worker *const worker = &cpi->workers[i];
+    VPxWorker *const worker = &cpi->workers[i];
     EncWorkerData *const thread_data = (EncWorkerData*)worker->data1;
 
     // Accumulate counters.
--- a/vp9/vp9_dx_iface.c
+++ b/vp9/vp9_dx_iface.c
@@ -59,7 +59,7 @@
 
   // Frame parallel related.
   int                     frame_parallel_decode;  // frame-based threading.
-  VP9Worker               *frame_workers;
+  VPxWorker               *frame_workers;
   int                     num_frame_workers;
   int                     next_submit_worker_id;
   int                     last_submit_worker_id;
@@ -112,10 +112,10 @@
   if (ctx->frame_workers != NULL) {
     int i;
     for (i = 0; i < ctx->num_frame_workers; ++i) {
-      VP9Worker *const worker = &ctx->frame_workers[i];
+      VPxWorker *const worker = &ctx->frame_workers[i];
       FrameWorkerData *const frame_worker_data =
           (FrameWorkerData *)worker->data1;
-      vp9_get_worker_interface()->end(worker);
+      vpx_get_worker_interface()->end(worker);
       vp9_remove_common(&frame_worker_data->pbi->common);
 #if CONFIG_VP9_POSTPROC
       vp9_free_postproc_buffers(&frame_worker_data->pbi->common);
@@ -279,7 +279,7 @@
   int i;
 
   for (i = 0; i < ctx->num_frame_workers; ++i) {
-    VP9Worker *const worker = &ctx->frame_workers[i];
+    VPxWorker *const worker = &ctx->frame_workers[i];
     FrameWorkerData *const frame_worker_data = (FrameWorkerData *)worker->data1;
     VP9_COMMON *const cm = &frame_worker_data->pbi->common;
     BufferPool *const pool = cm->buffer_pool;
@@ -336,7 +336,7 @@
     // the compressed data.
     if (frame_worker_data->result != 0 ||
         frame_worker_data->data + frame_worker_data->data_size - 1 > data) {
-      VP9Worker *const worker = frame_worker_data->pbi->frame_worker_owner;
+      VPxWorker *const worker = frame_worker_data->pbi->frame_worker_owner;
       BufferPool *const pool = frame_worker_data->pbi->common.buffer_pool;
       // Signal all the other threads that are waiting for this frame.
       vp9_frameworker_lock_stats(worker);
@@ -359,7 +359,7 @@
 
 static vpx_codec_err_t init_decoder(vpx_codec_alg_priv_t *ctx) {
   int i;
-  const VP9WorkerInterface *const winterface = vp9_get_worker_interface();
+  const VPxWorkerInterface *const winterface = vpx_get_worker_interface();
 
   ctx->last_show_frame = -1;
   ctx->next_submit_worker_id = 0;
@@ -387,7 +387,7 @@
     }
 #endif
 
-  ctx->frame_workers = (VP9Worker *)
+  ctx->frame_workers = (VPxWorker *)
       vpx_malloc(ctx->num_frame_workers * sizeof(*ctx->frame_workers));
   if (ctx->frame_workers == NULL) {
     set_error_detail(ctx, "Failed to allocate frame_workers");
@@ -395,7 +395,7 @@
   }
 
   for (i = 0; i < ctx->num_frame_workers; ++i) {
-    VP9Worker *const worker = &ctx->frame_workers[i];
+    VPxWorker *const worker = &ctx->frame_workers[i];
     FrameWorkerData *frame_worker_data = NULL;
     winterface->init(worker);
     worker->data1 = vpx_memalign(32, sizeof(FrameWorkerData));
@@ -435,7 +435,7 @@
     frame_worker_data->pbi->frame_parallel_decode = ctx->frame_parallel_decode;
     frame_worker_data->pbi->common.frame_parallel_decode =
         ctx->frame_parallel_decode;
-    worker->hook = (VP9WorkerHook)frame_worker_hook;
+    worker->hook = (VPxWorkerHook)frame_worker_hook;
     if (!winterface->reset(worker)) {
       set_error_detail(ctx, "Frame Worker thread creation failed");
       return VPX_CODEC_MEM_ERROR;
@@ -464,7 +464,7 @@
 static vpx_codec_err_t decode_one(vpx_codec_alg_priv_t *ctx,
                                   const uint8_t **data, unsigned int data_sz,
                                   void *user_priv, int64_t deadline) {
-  const VP9WorkerInterface *const winterface = vp9_get_worker_interface();
+  const VPxWorkerInterface *const winterface = vpx_get_worker_interface();
   (void)deadline;
 
   // Determine the stream parameters. Note that we rely on peek_si to
@@ -483,7 +483,7 @@
   }
 
   if (!ctx->frame_parallel_decode) {
-    VP9Worker *const worker = ctx->frame_workers;
+    VPxWorker *const worker = ctx->frame_workers;
     FrameWorkerData *const frame_worker_data = (FrameWorkerData *)worker->data1;
     frame_worker_data->data = *data;
     frame_worker_data->data_size = data_sz;
@@ -506,7 +506,7 @@
 
     check_resync(ctx, frame_worker_data->pbi);
   } else {
-    VP9Worker *const worker = &ctx->frame_workers[ctx->next_submit_worker_id];
+    VPxWorker *const worker = &ctx->frame_workers[ctx->next_submit_worker_id];
     FrameWorkerData *const frame_worker_data = (FrameWorkerData *)worker->data1;
     // Copy context from last worker thread to next worker thread.
     if (ctx->next_submit_worker_id != ctx->last_submit_worker_id)
@@ -554,8 +554,8 @@
 static void wait_worker_and_cache_frame(vpx_codec_alg_priv_t *ctx) {
   YV12_BUFFER_CONFIG sd;
   vp9_ppflags_t flags = {0, 0, 0};
-  const VP9WorkerInterface *const winterface = vp9_get_worker_interface();
-  VP9Worker *const worker = &ctx->frame_workers[ctx->next_output_worker_id];
+  const VPxWorkerInterface *const winterface = vpx_get_worker_interface();
+  VPxWorker *const worker = &ctx->frame_workers[ctx->next_output_worker_id];
   FrameWorkerData *const frame_worker_data = (FrameWorkerData *)worker->data1;
   ctx->next_output_worker_id =
       (ctx->next_output_worker_id + 1) % ctx->num_frame_workers;
@@ -746,8 +746,8 @@
     do {
       YV12_BUFFER_CONFIG sd;
       vp9_ppflags_t flags = {0, 0, 0};
-      const VP9WorkerInterface *const winterface = vp9_get_worker_interface();
-      VP9Worker *const worker =
+      const VPxWorkerInterface *const winterface = vpx_get_worker_interface();
+      VPxWorker *const worker =
           &ctx->frame_workers[ctx->next_output_worker_id];
       FrameWorkerData *const frame_worker_data =
           (FrameWorkerData *)worker->data1;
@@ -819,7 +819,7 @@
   if (data) {
     vpx_ref_frame_t *const frame = (vpx_ref_frame_t *)data;
     YV12_BUFFER_CONFIG sd;
-    VP9Worker *const worker = ctx->frame_workers;
+    VPxWorker *const worker = ctx->frame_workers;
     FrameWorkerData *const frame_worker_data = (FrameWorkerData *)worker->data1;
     image2yuvconfig(&frame->img, &sd);
     return vp9_set_reference_dec(&frame_worker_data->pbi->common,
@@ -842,7 +842,7 @@
   if (data) {
     vpx_ref_frame_t *frame = (vpx_ref_frame_t *) data;
     YV12_BUFFER_CONFIG sd;
-    VP9Worker *const worker = ctx->frame_workers;
+    VPxWorker *const worker = ctx->frame_workers;
     FrameWorkerData *const frame_worker_data = (FrameWorkerData *)worker->data1;
     image2yuvconfig(&frame->img, &sd);
     return vp9_copy_reference_dec(frame_worker_data->pbi,
@@ -864,7 +864,7 @@
 
   if (data) {
     YV12_BUFFER_CONFIG* fb;
-    VP9Worker *const worker = ctx->frame_workers;
+    VPxWorker *const worker = ctx->frame_workers;
     FrameWorkerData *const frame_worker_data = (FrameWorkerData *)worker->data1;
     fb = get_ref_frame(&frame_worker_data->pbi->common, data->idx);
     if (fb == NULL) return VPX_CODEC_ERROR;
@@ -913,7 +913,7 @@
 
   if (update_info) {
     if (ctx->frame_workers) {
-      VP9Worker *const worker = ctx->frame_workers;
+      VPxWorker *const worker = ctx->frame_workers;
       FrameWorkerData *const frame_worker_data =
           (FrameWorkerData *)worker->data1;
       *update_info = frame_worker_data->pbi->refresh_frame_flags;
@@ -932,7 +932,7 @@
 
   if (corrupted) {
     if (ctx->frame_workers) {
-      VP9Worker *const worker = ctx->frame_workers;
+      VPxWorker *const worker = ctx->frame_workers;
       FrameWorkerData *const frame_worker_data =
           (FrameWorkerData *)worker->data1;
       RefCntBuffer *const frame_bufs =
@@ -962,7 +962,7 @@
 
   if (frame_size) {
     if (ctx->frame_workers) {
-      VP9Worker *const worker = ctx->frame_workers;
+      VPxWorker *const worker = ctx->frame_workers;
       FrameWorkerData *const frame_worker_data =
           (FrameWorkerData *)worker->data1;
       const VP9_COMMON *const cm = &frame_worker_data->pbi->common;
@@ -989,7 +989,7 @@
 
   if (display_size) {
     if (ctx->frame_workers) {
-      VP9Worker *const worker = ctx->frame_workers;
+      VPxWorker *const worker = ctx->frame_workers;
       FrameWorkerData *const frame_worker_data =
           (FrameWorkerData *)worker->data1;
       const VP9_COMMON *const cm = &frame_worker_data->pbi->common;
@@ -1007,7 +1007,7 @@
 static vpx_codec_err_t ctrl_get_bit_depth(vpx_codec_alg_priv_t *ctx,
                                           va_list args) {
   unsigned int *const bit_depth = va_arg(args, unsigned int *);
-  VP9Worker *const worker = &ctx->frame_workers[ctx->next_output_worker_id];
+  VPxWorker *const worker = &ctx->frame_workers[ctx->next_output_worker_id];
 
   if (bit_depth) {
     if (worker) {
@@ -1053,7 +1053,7 @@
 
   ctx->byte_alignment = byte_alignment;
   if (ctx->frame_workers) {
-    VP9Worker *const worker = ctx->frame_workers;
+    VPxWorker *const worker = ctx->frame_workers;
     FrameWorkerData *const frame_worker_data =
         (FrameWorkerData *)worker->data1;
     frame_worker_data->pbi->common.byte_alignment = byte_alignment;
@@ -1066,7 +1066,7 @@
   ctx->skip_loop_filter = va_arg(args, int);
 
   if (ctx->frame_workers) {
-    VP9Worker *const worker = ctx->frame_workers;
+    VPxWorker *const worker = ctx->frame_workers;
     FrameWorkerData *const frame_worker_data = (FrameWorkerData *)worker->data1;
     frame_worker_data->pbi->common.skip_loop_filter = ctx->skip_loop_filter;
   }
--- a/vpx_thread/vpx_thread.c
+++ b/vpx_thread/vpx_thread.c
@@ -20,7 +20,7 @@
 
 #if CONFIG_MULTITHREAD
 
-struct VP9WorkerImpl {
+struct VPxWorkerImpl {
   pthread_mutex_t mutex_;
   pthread_cond_t  condition_;
   pthread_t       thread_;
@@ -28,10 +28,10 @@
 
 //------------------------------------------------------------------------------
 
-static void execute(VP9Worker *const worker);  // Forward declaration.
+static void execute(VPxWorker *const worker);  // Forward declaration.
 
 static THREADFN thread_loop(void *ptr) {
-  VP9Worker *const worker = (VP9Worker*)ptr;
+  VPxWorker *const worker = (VPxWorker*)ptr;
   int done = 0;
   while (!done) {
     pthread_mutex_lock(&worker->impl_->mutex_);
@@ -52,8 +52,8 @@
 }
 
 // main thread state control
-static void change_state(VP9Worker *const worker,
-                         VP9WorkerStatus new_status) {
+static void change_state(VPxWorker *const worker,
+                         VPxWorkerStatus new_status) {
   // No-op when attempting to change state on a thread that didn't come up.
   // Checking status_ without acquiring the lock first would result in a data
   // race.
@@ -78,12 +78,12 @@
 
 //------------------------------------------------------------------------------
 
-static void init(VP9Worker *const worker) {
+static void init(VPxWorker *const worker) {
   memset(worker, 0, sizeof(*worker));
   worker->status_ = NOT_OK;
 }
 
-static int sync(VP9Worker *const worker) {
+static int sync(VPxWorker *const worker) {
 #if CONFIG_MULTITHREAD
   change_state(worker, OK);
 #endif
@@ -91,12 +91,12 @@
   return !worker->had_error;
 }
 
-static int reset(VP9Worker *const worker) {
+static int reset(VPxWorker *const worker) {
   int ok = 1;
   worker->had_error = 0;
   if (worker->status_ < OK) {
 #if CONFIG_MULTITHREAD
-    worker->impl_ = (VP9WorkerImpl*)vpx_calloc(1, sizeof(*worker->impl_));
+    worker->impl_ = (VPxWorkerImpl*)vpx_calloc(1, sizeof(*worker->impl_));
     if (worker->impl_ == NULL) {
       return 0;
     }
@@ -129,13 +129,13 @@
   return ok;
 }
 
-static void execute(VP9Worker *const worker) {
+static void execute(VPxWorker *const worker) {
   if (worker->hook != NULL) {
     worker->had_error |= !worker->hook(worker->data1, worker->data2);
   }
 }
 
-static void launch(VP9Worker *const worker) {
+static void launch(VPxWorker *const worker) {
 #if CONFIG_MULTITHREAD
   change_state(worker, WORK);
 #else
@@ -143,7 +143,7 @@
 #endif
 }
 
-static void end(VP9Worker *const worker) {
+static void end(VPxWorker *const worker) {
 #if CONFIG_MULTITHREAD
   if (worker->impl_ != NULL) {
     change_state(worker, NOT_OK);
@@ -162,11 +162,11 @@
 
 //------------------------------------------------------------------------------
 
-static VP9WorkerInterface g_worker_interface = {
+static VPxWorkerInterface g_worker_interface = {
   init, reset, sync, launch, execute, end
 };
 
-int vp9_set_worker_interface(const VP9WorkerInterface* const winterface) {
+int vpx_set_worker_interface(const VPxWorkerInterface* const winterface) {
   if (winterface == NULL ||
       winterface->init == NULL || winterface->reset == NULL ||
       winterface->sync == NULL || winterface->launch == NULL ||
@@ -177,7 +177,7 @@
   return 1;
 }
 
-const VP9WorkerInterface *vp9_get_worker_interface(void) {
+const VPxWorkerInterface *vpx_get_worker_interface(void) {
   return &g_worker_interface;
 }
 
--- a/vpx_thread/vpx_thread.h
+++ b/vpx_thread/vpx_thread.h
@@ -13,8 +13,8 @@
 //  http://git.chromium.org/webm/libwebp.git
 //  100644 blob 7bd451b124ae3b81596abfbcc823e3cb129d3a38  src/utils/thread.h
 
-#ifndef VP9_DECODER_VP9_THREAD_H_
-#define VP9_DECODER_VP9_THREAD_H_
+#ifndef VPX_THREAD_H_
+#define VPX_THREAD_H_
 
 #include "./vpx_config.h"
 
@@ -160,49 +160,49 @@
   NOT_OK = 0,   // object is unusable
   OK,           // ready to work
   WORK          // busy finishing the current task
-} VP9WorkerStatus;
+} VPxWorkerStatus;
 
 // Function to be called by the worker thread. Takes two opaque pointers as
 // arguments (data1 and data2), and should return false in case of error.
-typedef int (*VP9WorkerHook)(void*, void*);
+typedef int (*VPxWorkerHook)(void*, void*);
 
 // Platform-dependent implementation details for the worker.
-typedef struct VP9WorkerImpl VP9WorkerImpl;
+typedef struct VPxWorkerImpl VPxWorkerImpl;
 
 // Synchronization object used to launch job in the worker thread
 typedef struct {
-  VP9WorkerImpl *impl_;
-  VP9WorkerStatus status_;
-  VP9WorkerHook hook;     // hook to call
+  VPxWorkerImpl *impl_;
+  VPxWorkerStatus status_;
+  VPxWorkerHook hook;     // hook to call
   void *data1;            // first argument passed to 'hook'
   void *data2;            // second argument passed to 'hook'
   int had_error;          // return value of the last call to 'hook'
-} VP9Worker;
+} VPxWorker;
 
 // The interface for all thread-worker related functions. All these functions
 // must be implemented.
 typedef struct {
   // Must be called first, before any other method.
-  void (*init)(VP9Worker *const worker);
+  void (*init)(VPxWorker *const worker);
   // Must be called to initialize the object and spawn the thread. Re-entrant.
   // Will potentially launch the thread. Returns false in case of error.
-  int (*reset)(VP9Worker *const worker);
+  int (*reset)(VPxWorker *const worker);
   // Makes sure the previous work is finished. Returns true if worker->had_error
   // was not set and no error condition was triggered by the working thread.
-  int (*sync)(VP9Worker *const worker);
+  int (*sync)(VPxWorker *const worker);
   // Triggers the thread to call hook() with data1 and data2 arguments. These
   // hook/data1/data2 values can be changed at any time before calling this
   // function, but not be changed afterward until the next call to Sync().
-  void (*launch)(VP9Worker *const worker);
+  void (*launch)(VPxWorker *const worker);
   // This function is similar to launch() except that it calls the
   // hook directly instead of using a thread. Convenient to bypass the thread
-  // mechanism while still using the VP9Worker structs. sync() must
+  // mechanism while still using the VPxWorker structs. sync() must
   // still be called afterward (for error reporting).
-  void (*execute)(VP9Worker *const worker);
+  void (*execute)(VPxWorker *const worker);
   // Kill the thread and terminate the object. To use the object again, one
   // must call reset() again.
-  void (*end)(VP9Worker *const worker);
-} VP9WorkerInterface;
+  void (*end)(VPxWorker *const worker);
+} VPxWorkerInterface;
 
 // Install a new set of threading functions, overriding the defaults. This
 // should be done before any workers are started, i.e., before any encoding or
@@ -209,10 +209,10 @@
 // decoding takes place. The contents of the interface struct are copied, it
 // is safe to free the corresponding memory after this call. This function is
 // not thread-safe. Return false in case of invalid pointer or methods.
-int vp9_set_worker_interface(const VP9WorkerInterface *const winterface);
+int vpx_set_worker_interface(const VPxWorkerInterface *const winterface);
 
 // Retrieve the currently set thread worker interface.
-const VP9WorkerInterface *vp9_get_worker_interface(void);
+const VPxWorkerInterface *vpx_get_worker_interface(void);
 
 //------------------------------------------------------------------------------
 
@@ -220,4 +220,4 @@
 }    // extern "C"
 #endif
 
-#endif  // VP9_DECODER_VP9_THREAD_H_
+#endif  // VPX_THREAD_H_