1 files changed, 83 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vp9/common/vp9_thread_common.h b/media/libvpx/libvpx/vp9/common/vp9_thread_common.h
new file mode 100644
index 0000000000..5df0117f12
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+++ b/media/libvpx/libvpx/vp9/common/vp9_thread_common.h
@@ -0,0 +1,83 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef VPX_VP9_COMMON_VP9_THREAD_COMMON_H_
+#define VPX_VP9_COMMON_VP9_THREAD_COMMON_H_
+#include "./vpx_config.h"
+#include "vp9/common/vp9_loopfilter.h"
+#include "vpx_util/vpx_thread.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct VP9Common;
+struct FRAME_COUNTS;
+
+// Loopfilter row synchronization
+typedef struct VP9LfSyncData {
+#if CONFIG_MULTITHREAD
+  pthread_mutex_t *mutex;
+  pthread_cond_t *cond;
+#endif
+  // Allocate memory to store the loop-filtered superblock index in each row.
+  int *cur_sb_col;
+  // The optimal sync_range for different resolution and platform should be
+  // determined by testing. Currently, it is chosen to be a power-of-2 number.
+  int sync_range;
+  int rows;
+
+  // Row-based parallel loopfilter data
+  LFWorkerData *lfdata;
+  int num_workers;         // number of allocated workers.
+  int num_active_workers;  // number of scheduled workers.
+
+#if CONFIG_MULTITHREAD
+  pthread_mutex_t *lf_mutex;
+  pthread_mutex_t *recon_done_mutex;
+  pthread_cond_t *recon_done_cond;
+#endif
+  int *num_tiles_done;
+  int corrupted;
+} VP9LfSync;
+
+// Allocate memory for loopfilter row synchronization.
+void vp9_loop_filter_alloc(VP9LfSync *lf_sync, struct VP9Common *cm, int rows,
+                           int width, int num_workers);
+
+// Deallocate loopfilter synchronization related mutex and data.
+void vp9_loop_filter_dealloc(VP9LfSync *lf_sync);
+
+// Multi-threaded loopfilter that uses the tile threads.
+void vp9_loop_filter_frame_mt(YV12_BUFFER_CONFIG *frame, struct VP9Common *cm,
+                              struct macroblockd_plane planes[MAX_MB_PLANE],
+                              int frame_filter_level, int y_only,
+                              int partial_frame, VPxWorker *workers,
+                              int num_workers, VP9LfSync *lf_sync);
+
+// Multi-threaded loopfilter initialisations
+void vp9_lpf_mt_init(VP9LfSync *lf_sync, struct VP9Common *cm,
+                     int frame_filter_level, int num_workers);
+
+void vp9_loopfilter_rows(LFWorkerData *lf_data, VP9LfSync *lf_sync);
+
+void vp9_set_row(VP9LfSync *lf_sync, int num_tiles, int row, int is_last_row,
+                 int corrupted);
+
+void vp9_loopfilter_job(LFWorkerData *lf_data, VP9LfSync *lf_sync);
+
+void vp9_accumulate_frame_counts(struct FRAME_COUNTS *accum,
+                                 const struct FRAME_COUNTS *counts, int is_dec);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VPX_VP9_COMMON_VP9_THREAD_COMMON_H_