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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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/audio_decoder_config.h" | 5 #include "media/base/audio_decoder_config.h" |
6 | 6 |
7 #include "base/logging.h" | 7 #include "base/logging.h" |
8 #include "media/base/limits.h" | 8 #include "media/base/limits.h" |
9 | 9 |
10 namespace media { | 10 namespace media { |
11 | 11 |
12 AudioDecoderConfig::AudioDecoderConfig() | 12 AudioDecoderConfig::AudioDecoderConfig() |
13 : codec_(kUnknownAudioCodec), | 13 : codec_(kUnknownAudioCodec), |
14 sample_format_(kUnknownSampleFormat), | 14 sample_format_(kUnknownSampleFormat), |
15 bytes_per_channel_(0), | 15 bytes_per_channel_(0), |
16 channel_layout_(CHANNEL_LAYOUT_UNSUPPORTED), | 16 channel_layout_(CHANNEL_LAYOUT_UNSUPPORTED), |
17 samples_per_second_(0), | 17 samples_per_second_(0), |
18 bytes_per_frame_(0), | 18 bytes_per_frame_(0), |
19 is_encrypted_(false), | 19 encryption_scheme_(), |
20 codec_delay_(0) { | 20 codec_delay_(0) {} |
21 } | |
22 | 21 |
23 AudioDecoderConfig::AudioDecoderConfig(AudioCodec codec, | 22 AudioDecoderConfig::AudioDecoderConfig( |
24 SampleFormat sample_format, | 23 AudioCodec codec, |
25 ChannelLayout channel_layout, | 24 SampleFormat sample_format, |
26 int samples_per_second, | 25 ChannelLayout channel_layout, |
27 const std::vector<uint8_t>& extra_data, | 26 int samples_per_second, |
28 bool is_encrypted) { | 27 const std::vector<uint8_t>& extra_data, |
| 28 const EncryptionScheme& encryption_scheme) { |
29 Initialize(codec, sample_format, channel_layout, samples_per_second, | 29 Initialize(codec, sample_format, channel_layout, samples_per_second, |
30 extra_data, is_encrypted, base::TimeDelta(), 0); | 30 extra_data, encryption_scheme, base::TimeDelta(), 0); |
31 } | 31 } |
32 | 32 |
33 AudioDecoderConfig::AudioDecoderConfig(const AudioDecoderConfig& other) = | 33 AudioDecoderConfig::AudioDecoderConfig(const AudioDecoderConfig& other) = |
34 default; | 34 default; |
35 | 35 |
36 void AudioDecoderConfig::Initialize(AudioCodec codec, | 36 void AudioDecoderConfig::Initialize(AudioCodec codec, |
37 SampleFormat sample_format, | 37 SampleFormat sample_format, |
38 ChannelLayout channel_layout, | 38 ChannelLayout channel_layout, |
39 int samples_per_second, | 39 int samples_per_second, |
40 const std::vector<uint8_t>& extra_data, | 40 const std::vector<uint8_t>& extra_data, |
41 bool is_encrypted, | 41 const EncryptionScheme& encryption_scheme, |
42 base::TimeDelta seek_preroll, | 42 base::TimeDelta seek_preroll, |
43 int codec_delay) { | 43 int codec_delay) { |
44 codec_ = codec; | 44 codec_ = codec; |
45 channel_layout_ = channel_layout; | 45 channel_layout_ = channel_layout; |
46 samples_per_second_ = samples_per_second; | 46 samples_per_second_ = samples_per_second; |
47 sample_format_ = sample_format; | 47 sample_format_ = sample_format; |
48 bytes_per_channel_ = SampleFormatToBytesPerChannel(sample_format); | 48 bytes_per_channel_ = SampleFormatToBytesPerChannel(sample_format); |
49 extra_data_ = extra_data; | 49 extra_data_ = extra_data; |
50 is_encrypted_ = is_encrypted; | 50 encryption_scheme_ = encryption_scheme; |
51 seek_preroll_ = seek_preroll; | 51 seek_preroll_ = seek_preroll; |
52 codec_delay_ = codec_delay; | 52 codec_delay_ = codec_delay; |
53 | 53 |
54 int channels = ChannelLayoutToChannelCount(channel_layout_); | 54 int channels = ChannelLayoutToChannelCount(channel_layout_); |
55 bytes_per_frame_ = channels * bytes_per_channel_; | 55 bytes_per_frame_ = channels * bytes_per_channel_; |
56 } | 56 } |
57 | 57 |
58 AudioDecoderConfig::~AudioDecoderConfig() {} | 58 AudioDecoderConfig::~AudioDecoderConfig() {} |
59 | 59 |
60 bool AudioDecoderConfig::IsValidConfig() const { | 60 bool AudioDecoderConfig::IsValidConfig() const { |
61 return codec_ != kUnknownAudioCodec && | 61 return codec_ != kUnknownAudioCodec && |
62 channel_layout_ != CHANNEL_LAYOUT_UNSUPPORTED && | 62 channel_layout_ != CHANNEL_LAYOUT_UNSUPPORTED && |
63 bytes_per_channel_ > 0 && | 63 bytes_per_channel_ > 0 && |
64 bytes_per_channel_ <= limits::kMaxBytesPerSample && | 64 bytes_per_channel_ <= limits::kMaxBytesPerSample && |
65 samples_per_second_ > 0 && | 65 samples_per_second_ > 0 && |
66 samples_per_second_ <= limits::kMaxSampleRate && | 66 samples_per_second_ <= limits::kMaxSampleRate && |
67 sample_format_ != kUnknownSampleFormat && | 67 sample_format_ != kUnknownSampleFormat && |
68 seek_preroll_ >= base::TimeDelta() && | 68 seek_preroll_ >= base::TimeDelta() && |
69 codec_delay_ >= 0; | 69 codec_delay_ >= 0; |
70 } | 70 } |
71 | 71 |
72 bool AudioDecoderConfig::Matches(const AudioDecoderConfig& config) const { | 72 bool AudioDecoderConfig::Matches(const AudioDecoderConfig& config) const { |
73 return ((codec() == config.codec()) && | 73 return ((codec() == config.codec()) && |
74 (bytes_per_channel() == config.bytes_per_channel()) && | 74 (bytes_per_channel() == config.bytes_per_channel()) && |
75 (channel_layout() == config.channel_layout()) && | 75 (channel_layout() == config.channel_layout()) && |
76 (samples_per_second() == config.samples_per_second()) && | 76 (samples_per_second() == config.samples_per_second()) && |
77 (extra_data() == config.extra_data()) && | 77 (extra_data() == config.extra_data()) && |
78 (is_encrypted() == config.is_encrypted()) && | 78 (encryption_scheme().Matches(config.encryption_scheme())) && |
79 (sample_format() == config.sample_format()) && | 79 (sample_format() == config.sample_format()) && |
80 (seek_preroll() == config.seek_preroll()) && | 80 (seek_preroll() == config.seek_preroll()) && |
81 (codec_delay() == config.codec_delay())); | 81 (codec_delay() == config.codec_delay())); |
82 } | 82 } |
83 | 83 |
84 std::string AudioDecoderConfig::AsHumanReadableString() const { | 84 std::string AudioDecoderConfig::AsHumanReadableString() const { |
85 std::ostringstream s; | 85 std::ostringstream s; |
86 s << "codec: " << GetCodecName(codec()) | 86 s << "codec: " << GetCodecName(codec()) |
87 << " bytes_per_channel: " << bytes_per_channel() | 87 << " bytes_per_channel: " << bytes_per_channel() |
88 << " channel_layout: " << channel_layout() | 88 << " channel_layout: " << channel_layout() |
89 << " samples_per_second: " << samples_per_second() | 89 << " samples_per_second: " << samples_per_second() |
90 << " sample_format: " << sample_format() | 90 << " sample_format: " << sample_format() |
91 << " bytes_per_frame: " << bytes_per_frame() | 91 << " bytes_per_frame: " << bytes_per_frame() |
92 << " seek_preroll: " << seek_preroll().InMilliseconds() << "ms" | 92 << " seek_preroll: " << seek_preroll().InMilliseconds() << "ms" |
93 << " codec_delay: " << codec_delay() << " has extra data? " | 93 << " codec_delay: " << codec_delay() << " has extra data? " |
94 << (extra_data().empty() ? "false" : "true") << " encrypted? " | 94 << (extra_data().empty() ? "false" : "true") << " encrypted? " |
95 << (is_encrypted() ? "true" : "false"); | 95 << (is_encrypted() ? "true" : "false"); |
96 return s.str(); | 96 return s.str(); |
97 } | 97 } |
98 | 98 |
| 99 bool AudioDecoderConfig::is_encrypted() const { |
| 100 return encryption_scheme_.is_encrypted(); |
| 101 } |
| 102 |
99 } // namespace media | 103 } // namespace media |
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