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+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#ifndef AOM_AV1_DECODER_DTHREAD_H_
+#define AOM_AV1_DECODER_DTHREAD_H_
+
+#include "config/aom_config.h"
+
+#include "aom_util/aom_thread.h"
+#include "aom/internal/aom_codec_internal.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct AV1Common;
+struct AV1Decoder;
+struct ThreadData;
+
+typedef struct DecWorkerData {
+ struct ThreadData *td;
+ const uint8_t *data_end;
+ struct aom_internal_error_info error_info;
+} DecWorkerData;
+
+// WorkerData for the FrameWorker thread. It contains all the information of
+// the worker and decode structures for decoding a frame.
+typedef struct FrameWorkerData {
+ struct AV1Decoder *pbi;
+ const uint8_t *data;
+ const uint8_t *data_end;
+ size_t data_size;
+ void *user_priv;
+ int worker_id;
+ int received_frame;
+
+ // scratch_buffer is used in frame parallel mode only.
+ // It is used to make a copy of the compressed data.
+ uint8_t *scratch_buffer;
+ size_t scratch_buffer_size;
+
+#if CONFIG_MULTITHREAD
+ pthread_mutex_t stats_mutex;
+ pthread_cond_t stats_cond;
+#endif
+
+ int frame_context_ready; // Current frame's context is ready to read.
+ int frame_decoded; // Finished decoding current frame.
+} FrameWorkerData;
+
+void av1_frameworker_lock_stats(AVxWorker *const worker);
+void av1_frameworker_unlock_stats(AVxWorker *const worker);
+void av1_frameworker_signal_stats(AVxWorker *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 av1_frameworker_wait(AVxWorker *const worker, RefCntBuffer *const ref_buf,
+ int row);
+
+// FrameWorker broadcasts its decoding progress so other workers that are
+// waiting on it can resume decoding.
+void av1_frameworker_broadcast(RefCntBuffer *const buf, int row);
+
+// Copy necessary decoding context from src worker to dst worker.
+void av1_frameworker_copy_context(AVxWorker *const dst_worker,
+ AVxWorker *const src_worker);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // AOM_AV1_DECODER_DTHREAD_H_