75 lines
2.1 KiB
Dart
75 lines
2.1 KiB
Dart
class H264 {
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static const profileConstrained = 1 << 9;
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static const profileIntra = 1 << 11;
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static const profileBaseline = 66;
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static const profileConstrainedBaseline = 66 | profileConstrained;
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static const profileMain = 77;
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static const profileExtended = 88;
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static const profileHigh = 100;
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static const profileHigh10 = 110;
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static const profileHigh422 = 122;
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static const profileHigh444 = 144;
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static const profileHigh444Predictive = 244;
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// intra
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static const profileHigh10Intra = 110 | profileIntra;
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static const profileHigh422Intra = 122 | profileIntra;
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static const profileHigh444Intra = 244 | profileIntra;
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static const profileCAVLC444 = 44;
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// multiview
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static const profileMultiviewHigh = 118;
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static const profileStereoHigh = 128;
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static const profileMultiviewDepthHigh = 138;
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static String formatProfile(int profileIndex, int levelIndex) {
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String profile;
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switch (profileIndex) {
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case profileBaseline:
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profile = 'Baseline';
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break;
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case profileConstrainedBaseline:
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profile = 'Constrained Baseline';
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break;
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case profileMain:
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profile = 'Main';
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break;
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case profileExtended:
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profile = 'Extended';
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break;
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case profileHigh:
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profile = 'High';
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break;
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case profileHigh10:
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profile = 'High 10';
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break;
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case profileHigh10Intra:
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profile = 'High 10 Intra';
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break;
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case profileHigh422:
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profile = 'High 4:2:2';
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break;
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case profileHigh422Intra:
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profile = 'High 4:2:2 Intra';
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break;
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case profileHigh444:
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profile = 'High 4:4:4';
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break;
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case profileHigh444Predictive:
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profile = 'High 4:4:4 Predictive';
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break;
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case profileHigh444Intra:
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profile = 'High 4:4:4 Intra';
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break;
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case profileCAVLC444:
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profile = 'CAVLC 4:4:4';
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break;
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default:
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return '$profileIndex';
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}
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if (levelIndex <= 0) return profile;
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final level = (levelIndex / 10.0).toStringAsFixed(levelIndex % 10 != 0 ? 1 : 0);
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return '$profile Profile, Level $level';
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}
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}
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