1// Copyright 2013 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#ifndef MEDIA_MIDI_MIDI_MESSAGE_UTIL_H_ 6#define MEDIA_MIDI_MIDI_MESSAGE_UTIL_H_ 7 8#include <deque> 9#include <vector> 10 11#include "base/basictypes.h" 12#include "media/base/media_export.h" 13 14namespace media { 15 16// Returns the length of a MIDI message in bytes. Never returns 4 or greater. 17// Returns 0 if |status_byte| is: 18// - not a valid status byte, namely data byte. 19// - the MIDI System Exclusive message. 20// - the End of System Exclusive message. 21MEDIA_EXPORT size_t GetMidiMessageLength(uint8 status_byte); 22 23const uint8 kSysExByte = 0xf0; 24const uint8 kEndOfSysExByte = 0xf7; 25 26const uint8 kSysMessageBitMask = 0xf0; 27const uint8 kSysMessageBitPattern = 0xf0; 28const uint8 kSysRTMessageBitMask = 0xf8; 29const uint8 kSysRTMessageBitPattern = 0xf8; 30 31} // namespace media 32 33#endif // MEDIA_MIDI_MIDI_MESSAGE_UTIL_H_ 34