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Side by Side Diff: media/base/limits.h

Issue 2973763002: Revert of Make OS audio buffer size limits visible. (Closed)
Patch Set: Created 3 years, 5 months ago
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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2011 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 // Contains limit definition constants for the media subsystem. 5 // Contains limit definition constants for the media subsystem.
6 6
7 #ifndef MEDIA_BASE_LIMITS_H_ 7 #ifndef MEDIA_BASE_LIMITS_H_
8 #define MEDIA_BASE_LIMITS_H_ 8 #define MEDIA_BASE_LIMITS_H_
9 9
10 #include "build/build_config.h"
11
12 namespace media { 10 namespace media {
13 11
14 namespace limits { 12 namespace limits {
15 13
16 enum { 14 enum {
17 // Maximum possible dimension (width or height) for any video. 15 // Maximum possible dimension (width or height) for any video.
18 kMaxDimension = (1 << 15) - 1, // 32767 16 kMaxDimension = (1 << 15) - 1, // 32767
19 17
20 // Maximum possible canvas size (width multiplied by height) for any video. 18 // Maximum possible canvas size (width multiplied by height) for any video.
21 kMaxCanvas = (1 << (14 * 2)), // 16384 x 16384 19 kMaxCanvas = (1 << (14 * 2)), // 16384 x 16384
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53 // lengths are somewhat arbitrary as the EME spec doesn't specify any limits. 51 // lengths are somewhat arbitrary as the EME spec doesn't specify any limits.
54 kMinCertificateLength = 128, 52 kMinCertificateLength = 128,
55 kMaxCertificateLength = 16 * 1024, 53 kMaxCertificateLength = 16 * 1024,
56 kMaxSessionIdLength = 512, 54 kMaxSessionIdLength = 512,
57 kMinKeyIdLength = 1, 55 kMinKeyIdLength = 1,
58 kMaxKeyIdLength = 512, 56 kMaxKeyIdLength = 512,
59 kMaxKeyIds = 128, 57 kMaxKeyIds = 128,
60 kMaxInitDataLength = 64 * 1024, // 64 KB 58 kMaxInitDataLength = 64 * 1024, // 64 KB
61 kMaxSessionResponseLength = 64 * 1024, // 64 KB 59 kMaxSessionResponseLength = 64 * 1024, // 64 KB
62 kMaxKeySystemLength = 256, 60 kMaxKeySystemLength = 256,
63
64 // Minimum and maximum buffer sizes for certain audio platforms.
65 #if defined(OS_MACOSX)
66 kMinAudioBufferSize = 128,
67 kMaxAudioBufferSize = 4096,
68 #elif defined(USE_PULSEAUDIO)
69 kMinAudioBufferSize = 512,
70 kMaxAudioBufferSize = 8192,
71 #elif defined(USE_CRAS)
72 // Though CRAS has different per-board defaults, allow explicitly requesting
73 // this buffer size on any board.
74 kMinAudioBufferSize = 256,
75 kMaxAudioBufferSize = 8192,
76 #endif
77 }; 61 };
78 62
79 } // namespace limits 63 } // namespace limits
80 64
81 } // namespace media 65 } // namespace media
82 66
83 #endif // MEDIA_BASE_LIMITS_H_ 67 #endif // MEDIA_BASE_LIMITS_H_
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