114 lines
2.8 KiB
C++
114 lines
2.8 KiB
C++
/*
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* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "frame_list.h"
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#include "frame_buffer.h"
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#include "jitter_buffer.h"
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#include <cstdlib>
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namespace webrtc {
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VCMFrameListTimestampOrderAsc::~VCMFrameListTimestampOrderAsc()
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{
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Flush();
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}
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void
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VCMFrameListTimestampOrderAsc::Flush()
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{
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while(Erase(First()) != -1) { }
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}
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// Inserts frame in timestamp order, with the oldest timestamp first. Takes wrap arounds into account
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WebRtc_Word32
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VCMFrameListTimestampOrderAsc::Insert(VCMFrameBuffer* frame)
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{
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VCMFrameListItem* item = static_cast<VCMFrameListItem*>(First());
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VCMFrameListItem* newItem = new VCMFrameListItem(frame);
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bool inserted = false;
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if (newItem == NULL)
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{
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return -1;
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}
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while (item != NULL)
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{
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const WebRtc_UWord32 itemTimestamp = item->GetItem()->TimeStamp();
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if (VCMJitterBuffer::LatestTimestamp(itemTimestamp, frame->TimeStamp()) == itemTimestamp)
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{
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if (InsertBefore(item, newItem) < 0)
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{
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delete newItem;
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return -1;
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}
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inserted = true;
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break;
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}
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item = Next(item);
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}
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if (!inserted && ListWrapper::Insert(ListWrapper::Last(), newItem) < 0)
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{
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delete newItem;
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return -1;
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}
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return 0;
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}
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VCMFrameBuffer*
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VCMFrameListTimestampOrderAsc::FirstFrame() const
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{
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VCMFrameListItem* item = First();
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if (item != NULL)
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{
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return item->GetItem();
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}
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return NULL;
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}
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VCMFrameListItem*
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VCMFrameListTimestampOrderAsc::FindFrameListItem(FindFrameCriteria criteria,
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const void* compareWith,
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VCMFrameListItem* startItem) const
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{
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if (startItem == NULL)
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{
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startItem = First();
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}
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if (criteria == NULL)
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{
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return NULL;
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}
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while (startItem != NULL)
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{
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if (criteria(startItem->GetItem(), compareWith))
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{
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return startItem;
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}
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startItem = Next(startItem);
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}
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// No frame found
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return NULL;
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}
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VCMFrameBuffer*
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VCMFrameListTimestampOrderAsc::FindFrame(FindFrameCriteria criteria,
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const void* compareWith,
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VCMFrameListItem* startItem) const
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{
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const VCMFrameListItem* frameListItem = FindFrameListItem(criteria, compareWith, startItem);
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if (frameListItem == NULL)
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{
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return NULL;
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}
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return frameListItem->GetItem();
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}
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}
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