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/base/sample_format.h" 6 7 #include "base/logging.h" 8 9 namespace media { 10 SampleFormatToBytesPerChannel(SampleFormat sample_format)11int SampleFormatToBytesPerChannel(SampleFormat sample_format) { 12 switch (sample_format) { 13 case kUnknownSampleFormat: 14 return 0; 15 case kSampleFormatU8: 16 return 1; 17 case kSampleFormatS16: 18 case kSampleFormatPlanarS16: 19 return 2; 20 case kSampleFormatS32: 21 case kSampleFormatF32: 22 case kSampleFormatPlanarF32: 23 return 4; 24 } 25 26 NOTREACHED() << "Invalid sample format provided: " << sample_format; 27 return 0; 28 } 29 SampleFormatToString(SampleFormat sample_format)30const char* SampleFormatToString(SampleFormat sample_format) { 31 switch(sample_format) { 32 case kUnknownSampleFormat: 33 return "Unknown sample format"; 34 case kSampleFormatU8: 35 return "Unsigned 8-bit with bias of 128"; 36 case kSampleFormatS16: 37 return "Signed 16-bit"; 38 case kSampleFormatS32: 39 return "Signed 32-bit"; 40 case kSampleFormatF32: 41 return "Float 32-bit"; 42 case kSampleFormatPlanarS16: 43 return "Signed 16-bit planar"; 44 case kSampleFormatPlanarF32: 45 return "Float 32-bit planar"; 46 } 47 NOTREACHED() << "Invalid sample format provided: " << sample_format; 48 return ""; 49 } 50 51 } // namespace media 52