media/formats/mp4/fourccs.h - Issue 812643005: Re-add AC3/EAC3 audio demuxing support

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Side by Side Diff: media/formats/mp4/fourccs.h

Issue 812643005: Re-add AC3/EAC3 audio demuxing support (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Code cleanup Created 5 years, 11 months ago

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1 // Copyright 2014 The Chromium Authors. All rights reserved.	1 // Copyright 2014 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 #ifndef MEDIA_FORMATS_MP4_FOURCCS_H_	5 #ifndef MEDIA_FORMATS_MP4_FOURCCS_H_

6 #define MEDIA_FORMATS_MP4_FOURCCS_H_	6 #define MEDIA_FORMATS_MP4_FOURCCS_H_

7	7

8 #include <string>	8 #include <string>

9	9

10 namespace media {	10 namespace media {

11 namespace mp4 {	11 namespace mp4 {

12	12

13 enum FourCC {	13 enum FourCC {

14 FOURCC_NULL = 0,	14 FOURCC_NULL = 0,

	15 #if defined(ENABLE_AC3_EAC3_AUDIO_DEMUXING)

	16 // AC3 fourcc codes

	17 FOURCC_A52 = 0x61353220, // "a52 " AC3 is also known as A52

	18 FOURCC_AC3 = 0x61633320, // "ac3 "

	19 FOURCC_AC_3 = 0x61632d33, // "ac-3"

	20 // EAC3 fourcc codes

	21 FOURCC_A52b = 0x61353262, // "a52b"

	22 FOURCC_EAC3 = 0x65632d33, // "ec-3"

	23 #endif

15 FOURCC_AVC1 = 0x61766331,	24 FOURCC_AVC1 = 0x61766331,

16 FOURCC_AVC3 = 0x61766333,	25 FOURCC_AVC3 = 0x61766333,

17 FOURCC_AVCC = 0x61766343,	26 FOURCC_AVCC = 0x61766343,

18 FOURCC_BLOC = 0x626C6F63,	27 FOURCC_BLOC = 0x626C6F63,

19 FOURCC_CENC = 0x63656e63,	28 FOURCC_CENC = 0x63656e63,

20 FOURCC_CO64 = 0x636f3634,	29 FOURCC_CO64 = 0x636f3634,

21 FOURCC_CTTS = 0x63747473,	30 FOURCC_CTTS = 0x63747473,

22 FOURCC_DINF = 0x64696e66,	31 FOURCC_DINF = 0x64696e66,

23 FOURCC_EDTS = 0x65647473,	32 FOURCC_EDTS = 0x65647473,

24 FOURCC_EMSG = 0x656d7367,	33 FOURCC_EMSG = 0x656d7367,

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95 buf[2] = (fourcc >> 8) & 0xff;	104 buf[2] = (fourcc >> 8) & 0xff;

96 buf[3] = (fourcc) & 0xff;	105 buf[3] = (fourcc) & 0xff;

97 buf[4] = 0;	106 buf[4] = 0;

98 return std::string(buf);	107 return std::string(buf);

99 }	108 }

100	109

101 } // namespace mp4	110 } // namespace mp4

102 } // namespace media	111 } // namespace media

103	112

104 #endif // MEDIA_FORMATS_MP4_FOURCCS_H_	113 #endif // MEDIA_FORMATS_MP4_FOURCCS_H_

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