110 lines
3.2 KiB
C++
110 lines
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef FrameStatistics_h_
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#define FrameStatistics_h_
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namespace mozilla {
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// Frame decoding/painting related performance counters.
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// Threadsafe.
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class FrameStatistics {
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public:
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(FrameStatistics);
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FrameStatistics() :
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mReentrantMonitor("FrameStats"),
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mParsedFrames(0),
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mDecodedFrames(0),
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mPresentedFrames(0),
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mDroppedFrames(0),
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mCorruptFrames(0) {}
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// Returns number of frames which have been parsed from the media.
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// Can be called on any thread.
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uint32_t GetParsedFrames() {
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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return mParsedFrames;
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}
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// Returns the number of parsed frames which have been decoded.
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// Can be called on any thread.
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uint32_t GetDecodedFrames() {
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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return mDecodedFrames;
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}
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// Returns the number of decoded frames which have been sent to the rendering
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// pipeline for painting ("presented").
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// Can be called on any thread.
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uint32_t GetPresentedFrames() {
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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return mPresentedFrames;
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}
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// Number of frames that have been skipped because they have missed their
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// compoisition deadline.
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uint32_t GetDroppedFrames() {
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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return mDroppedFrames + mCorruptFrames;
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}
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uint32_t GetCorruptedFrames() {
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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return mCorruptFrames;
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}
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// Increments the parsed and decoded frame counters by the passed in counts.
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// Can be called on any thread.
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void NotifyDecodedFrames(uint32_t aParsed, uint32_t aDecoded,
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uint32_t aDropped) {
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if (aParsed == 0 && aDecoded == 0 && aDropped == 0)
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return;
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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mParsedFrames += aParsed;
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mDecodedFrames += aDecoded;
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mDroppedFrames += aDropped;
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}
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// Increments the presented frame counters.
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// Can be called on any thread.
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void NotifyPresentedFrame() {
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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++mPresentedFrames;
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}
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void NotifyCorruptFrame() {
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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++mCorruptFrames;
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}
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private:
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~FrameStatistics() {}
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// ReentrantMonitor to protect access of playback statistics.
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ReentrantMonitor mReentrantMonitor;
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// Number of frames parsed and demuxed from media.
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// Access protected by mReentrantMonitor.
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uint32_t mParsedFrames;
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// Number of parsed frames which were actually decoded.
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// Access protected by mReentrantMonitor.
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uint32_t mDecodedFrames;
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// Number of decoded frames which were actually sent down the rendering
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// pipeline to be painted ("presented"). Access protected by mReentrantMonitor.
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uint32_t mPresentedFrames;
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uint32_t mDroppedFrames;
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uint32_t mCorruptFrames;
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};
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} // namespace mozilla
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#endif
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