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 #include "media/midi/midi_message_util.h" 6 7 namespace media { 8 9 size_t GetMidiMessageLength(uint8 status_byte) { 10 if (status_byte < 0x80) 11 return 0; 12 if (0x80 <= status_byte && status_byte <= 0xbf) 13 return 3; 14 if (0xc0 <= status_byte && status_byte <= 0xdf) 15 return 2; 16 if (0xe0 <= status_byte && status_byte <= 0xef) 17 return 3; 18 if (status_byte == 0xf0) 19 return 0; 20 if (status_byte == 0xf1) 21 return 2; 22 if (status_byte == 0xf2) 23 return 3; 24 if (status_byte == 0xf3) 25 return 2; 26 if (0xf4 <= status_byte && status_byte <= 0xf6) 27 return 1; 28 if (status_byte == 0xf7) 29 return 0; 30 // 0xf8 <= status_byte && status_byte <= 0xff 31 return 1; 32 } 33 34 } // namespace media 35
