media/base/sample_format.cc - Issue 2503233003: Add enumerations for compressed (E)AC3 sample format

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Issue 2503233003: Add enumerations for compressed (E)AC3 sample format (Closed)

Patch Set: Fix proto Created 4 years, 1 month ago

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1 // Copyright 2013 The Chromium Authors. All rights reserved.	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	2 // Use of this source code is governed by a BSD-style license that can be

3 // found in the LICENSE file.	3 // found in the LICENSE file.

4	4

5 #include "media/base/sample_format.h"	5 #include "media/base/sample_format.h"

6	6

7 #include "base/logging.h"	7 #include "base/logging.h"

8	8

9 namespace media {	9 namespace media {

10	10

11 int SampleFormatToBytesPerChannel(SampleFormat sample_format) {	11 int SampleFormatToBytesPerChannel(SampleFormat sample_format) {

12 switch (sample_format) {	12 switch (sample_format) {

13 case kUnknownSampleFormat:	13 case kUnknownSampleFormat:

14 return 0;	14 return 0;

15 case kSampleFormatU8:	15 case kSampleFormatU8:

	16 case kSampleFormatAc3:

	17 case kSampleFormatEac3:

16 return 1;	18 return 1;

17 case kSampleFormatS16:	19 case kSampleFormatS16:

18 case kSampleFormatPlanarS16:	20 case kSampleFormatPlanarS16:

19 return 2;	21 return 2;

20 case kSampleFormatS24:	22 case kSampleFormatS24:

21 case kSampleFormatS32:	23 case kSampleFormatS32:

22 case kSampleFormatF32:	24 case kSampleFormatF32:

23 case kSampleFormatPlanarF32:	25 case kSampleFormatPlanarF32:

24 case kSampleFormatPlanarS32:	26 case kSampleFormatPlanarS32:

25 return 4;	27 return 4;

(...skipping 16 matching lines...) Expand all Loading...
42 case kSampleFormatS32:	44 case kSampleFormatS32:

43 return "Signed 32-bit";	45 return "Signed 32-bit";

44 case kSampleFormatF32:	46 case kSampleFormatF32:

45 return "Float 32-bit";	47 return "Float 32-bit";

46 case kSampleFormatPlanarS16:	48 case kSampleFormatPlanarS16:

47 return "Signed 16-bit planar";	49 return "Signed 16-bit planar";

48 case kSampleFormatPlanarF32:	50 case kSampleFormatPlanarF32:

49 return "Float 32-bit planar";	51 return "Float 32-bit planar";

50 case kSampleFormatPlanarS32:	52 case kSampleFormatPlanarS32:

51 return "Signed 32-bit planar";	53 return "Signed 32-bit planar";

	54 case kSampleFormatAc3:

	55 return "Compressed AC3 bitstream";

	56 case kSampleFormatEac3:

	57 return "Compressed E-AC3 bitstream";

52 }	58 }

53 NOTREACHED() << "Invalid sample format provided: " << sample_format;	59 NOTREACHED() << "Invalid sample format provided: " << sample_format;

54 return "";	60 return "";

55 }	61 }

56	62

57 bool IsPlanar(SampleFormat sample_format) {	63 bool IsPlanar(SampleFormat sample_format) {

58 switch (sample_format) {	64 switch (sample_format) {

59 case kSampleFormatPlanarS16:	65 case kSampleFormatPlanarS16:

60 case kSampleFormatPlanarF32:	66 case kSampleFormatPlanarF32:

61 case kSampleFormatPlanarS32:	67 case kSampleFormatPlanarS32:

62 return true;	68 return true;

63 case kUnknownSampleFormat:	69 case kUnknownSampleFormat:

64 case kSampleFormatU8:	70 case kSampleFormatU8:

65 case kSampleFormatS16:	71 case kSampleFormatS16:

66 case kSampleFormatS24:	72 case kSampleFormatS24:

67 case kSampleFormatS32:	73 case kSampleFormatS32:

68 case kSampleFormatF32:	74 case kSampleFormatF32:

	75 case kSampleFormatAc3:

	76 case kSampleFormatEac3:

69 return false;	77 return false;

70 }	78 }

71	79

72 NOTREACHED() << "Invalid sample format provided: " << sample_format;	80 NOTREACHED() << "Invalid sample format provided: " << sample_format;

73 return false;	81 return false;

74 }	82 }

75	83

76 bool IsInterleaved(SampleFormat sample_format) {	84 bool IsInterleaved(SampleFormat sample_format) {

77 switch (sample_format) {	85 switch (sample_format) {

78 case kSampleFormatU8:	86 case kSampleFormatU8:

79 case kSampleFormatS16:	87 case kSampleFormatS16:

80 case kSampleFormatS24:	88 case kSampleFormatS24:

81 case kSampleFormatS32:	89 case kSampleFormatS32:

82 case kSampleFormatF32:	90 case kSampleFormatF32:

	91 case kSampleFormatAc3:

	92 case kSampleFormatEac3:

83 return true;	93 return true;

84 case kUnknownSampleFormat:	94 case kUnknownSampleFormat:

85 case kSampleFormatPlanarS16:	95 case kSampleFormatPlanarS16:

86 case kSampleFormatPlanarF32:	96 case kSampleFormatPlanarF32:

87 case kSampleFormatPlanarS32:	97 case kSampleFormatPlanarS32:

88 return false;	98 return false;

89 }	99 }

90	100

91 NOTREACHED() << "Invalid sample format provided: " << sample_format;	101 NOTREACHED() << "Invalid sample format provided: " << sample_format;

92 return false;	102 return false;

93 }	103 }

94	104

	105 bool IsBitstream(SampleFormat sample_format) {

	106 switch (sample_format) {

	107 case kSampleFormatAc3:

	108 case kSampleFormatEac3:

	109 return true;

	110 case kUnknownSampleFormat:

	111 case kSampleFormatU8:

	112 case kSampleFormatS16:

	113 case kSampleFormatS24:

	114 case kSampleFormatS32:

	115 case kSampleFormatF32:

	116 case kSampleFormatPlanarS16:

	117 case kSampleFormatPlanarF32:

	118 case kSampleFormatPlanarS32:

	119 return false;

	120 }

	121

	122 NOTREACHED() << "Invalid sample format provided: " << sample_format;

	123 return false;

	124 }

	125

95 } // namespace media	126 } // namespace media

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