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Diffstat (limited to 'media/base/buffer_queue.h')
-rw-r--r-- | media/base/buffer_queue.h | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/media/base/buffer_queue.h b/media/base/buffer_queue.h deleted file mode 100644 index e6018c9..0000000 --- a/media/base/buffer_queue.h +++ /dev/null @@ -1,70 +0,0 @@ -// Copyright (c) 2009 The Chromium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -// BufferQueue is a simple Buffer manager that handles requests for data -// while hiding Buffer boundaries, treating its internal queue of Buffers -// as a contiguous region. -// -// This class is not threadsafe and requires external locking. - -#ifndef MEDIA_BASE_BUFFER_QUEUE_H_ -#define MEDIA_BASE_BUFFER_QUEUE_H_ - -#include <deque> - -#include "base/ref_counted.h" -#include "base/time.h" - -namespace media { - -class Buffer; - -class BufferQueue { - public: - BufferQueue(); - ~BufferQueue(); - - // Clears |queue_|. - void Clear(); - - // Advances front pointer |bytes_to_be_consumed| bytes and discards - // "consumed" buffers. - void Consume(size_t bytes_to_be_consumed); - - // Tries to copy |bytes| bytes from our data to |dest|. Returns the number - // of bytes successfully copied. - size_t Copy(uint8* dest, size_t bytes); - - // Enqueues |buffer_in| and adds a reference. - void Enqueue(Buffer* buffer_in); - - // Returns the current timestamp, taking into account |data_offset_|. - base::TimeDelta GetTime(); - - // Returns true if the |queue_| is empty. - bool IsEmpty(); - - // Returns the number of bytes in the |queue_|. - size_t SizeInBytes(); - - private: - // Queued audio data. - std::deque< scoped_refptr<Buffer> > queue_; - - // Remembers the amount of remaining audio data in the front buffer. - size_t data_offset_; - - // Keeps track of the |queue_| size in bytes. - size_t size_in_bytes_; - - // Keeps track of the most recent time we've seen in case the |queue_| is - // empty when our owner asks what time it is. - base::TimeDelta most_recent_time_; - - DISALLOW_COPY_AND_ASSIGN(BufferQueue); -}; - -} // namespace media - -#endif // MEDIA_BASE_BUFFER_QUEUE_H_ |