chromium/third_party/libaom/source/libaom/aom_util/aom_thread.h

/*
 * 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.
 */
//
// Multi-threaded worker
//
// Original source:
//  https://chromium.googlesource.com/webm/libwebp

#ifndef AOM_AOM_UTIL_AOM_THREAD_H_
#define AOM_AOM_UTIL_AOM_THREAD_H_

#ifdef __cplusplus
extern "C" {
#endif

// State of the worker thread object
AVxWorkerStatus;

// Function to be called by the worker thread. Takes two opaque pointers as
// arguments (data1 and data2). Should return true on success and return false
// in case of error.
AVxWorkerHook;

// Platform-dependent implementation details for the worker.
AVxWorkerImpl;

// Synchronization object used to launch job in the worker thread
AVxWorker;

// The interface for all thread-worker related functions. All these functions
// must be implemented.
AVxWorkerInterface;

// 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
// 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 aom_set_worker_interface(const AVxWorkerInterface *const winterface);

// Retrieve the currently set thread worker interface.
const AVxWorkerInterface *aom_get_worker_interface(void);

//------------------------------------------------------------------------------

#ifdef __cplusplus
}  // extern "C"
#endif

#endif  // AOM_AOM_UTIL_AOM_THREAD_H_