a4d873786f
This CL was generated by running git ls-files | grep -P "(\.h|\.cc)$" | grep -v 'sdk/' | grep -v 'rtc_base/ssl_' | \ grep -v 'fake_rtc_certificate_generator.h' | grep -v 'modules/audio_device/win/' | \ grep -v 'system_wrappers/source/clock.cc' | grep -v 'rtc_base/trace_event.h' | \ grep -v 'modules/audio_coding/codecs/ilbc/' | grep -v 'screen_capturer_mac.h' | \ grep -v 'spl_inl_mips.h' | grep -v 'data_size_unittest.cc' | grep -v 'timestamp_unittest.cc' \ | xargs clang-format -i ; git cl format Most of these changes are clang-format grouping and reordering includes differently. Bug: webrtc:9340 Change-Id: Ic83ddbc169bfacd21883e381b5181c3dd4fe8a63 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/144051 Commit-Queue: Jonas Olsson <jonasolsson@webrtc.org> Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Cr-Commit-Position: refs/heads/master@{#28505}
75 lines
3.0 KiB
C++
75 lines
3.0 KiB
C++
/*
|
|
* Copyright (c) 2015 The WebRTC 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 COMMON_VIDEO_INCLUDE_I420_BUFFER_POOL_H_
|
|
#define COMMON_VIDEO_INCLUDE_I420_BUFFER_POOL_H_
|
|
|
|
#include <stddef.h>
|
|
|
|
#include <list>
|
|
|
|
#include "api/scoped_refptr.h"
|
|
#include "api/video/i420_buffer.h"
|
|
#include "rtc_base/race_checker.h"
|
|
#include "rtc_base/ref_counted_object.h"
|
|
|
|
namespace webrtc {
|
|
|
|
// Simple buffer pool to avoid unnecessary allocations of I420Buffer objects.
|
|
// The pool manages the memory of the I420Buffer returned from CreateBuffer.
|
|
// When the I420Buffer is destructed, the memory is returned to the pool for use
|
|
// by subsequent calls to CreateBuffer. If the resolution passed to CreateBuffer
|
|
// changes, old buffers will be purged from the pool.
|
|
// Note that CreateBuffer will crash if more than kMaxNumberOfFramesBeforeCrash
|
|
// are created. This is to prevent memory leaks where frames are not returned.
|
|
class I420BufferPool {
|
|
public:
|
|
I420BufferPool();
|
|
explicit I420BufferPool(bool zero_initialize);
|
|
I420BufferPool(bool zero_initialze, size_t max_number_of_buffers);
|
|
~I420BufferPool();
|
|
|
|
// Returns a buffer from the pool. If no suitable buffer exist in the pool
|
|
// and there are less than |max_number_of_buffers| pending, a buffer is
|
|
// created. Returns null otherwise.
|
|
rtc::scoped_refptr<I420Buffer> CreateBuffer(int width, int height);
|
|
|
|
// Returns a buffer from the pool with the explicitly specified stride.
|
|
rtc::scoped_refptr<I420Buffer> CreateBuffer(int width,
|
|
int height,
|
|
int stride_y,
|
|
int stride_u,
|
|
int stride_v);
|
|
|
|
// Clears buffers_ and detaches the thread checker so that it can be reused
|
|
// later from another thread.
|
|
void Release();
|
|
|
|
private:
|
|
// Explicitly use a RefCountedObject to get access to HasOneRef,
|
|
// needed by the pool to check exclusive access.
|
|
using PooledI420Buffer = rtc::RefCountedObject<I420Buffer>;
|
|
|
|
rtc::RaceChecker race_checker_;
|
|
std::list<rtc::scoped_refptr<PooledI420Buffer>> buffers_;
|
|
// If true, newly allocated buffers are zero-initialized. Note that recycled
|
|
// buffers are not zero'd before reuse. This is required of buffers used by
|
|
// FFmpeg according to http://crbug.com/390941, which only requires it for the
|
|
// initial allocation (as shown by FFmpeg's own buffer allocation code). It
|
|
// has to do with "Use-of-uninitialized-value" on "Linux_msan_chrome".
|
|
const bool zero_initialize_;
|
|
// Max number of buffers this pool can have pending.
|
|
const size_t max_number_of_buffers_;
|
|
};
|
|
|
|
} // namespace webrtc
|
|
|
|
#endif // COMMON_VIDEO_INCLUDE_I420_BUFFER_POOL_H_
|