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- #pragma once
- #include "foundation/types.h"
- class MPEGHeader
- {
- public:
- void ReadBuffer(const uint8_t *buffer);
- int GetNumChannels() const;
- bool IsSync() const;
- int GetBitrate() const;
- int HeaderSize() const;
- int GetSampleRate() const;
- int FrameSize() const;
- int GetLayer() const;
- bool IsCRC() const;
- bool IsCopyright() const;
- bool IsOriginal() const;
- int GetSamplesPerFrame() const;
- enum
- {
- NotPadded=0,
- Padded=1,
- CRC = 0,
- NoProtection = 1,
- Stereo = 0,
- JointStereo = 1,
- DualChannel = 2,
- Mono = 3,
- MPEG1 = 3,
- MPEG2 = 2,
- MPEG_Error = 1,
- MPEG2_5 = 0,
- Layer1 = 3,
- Layer2 = 2,
- Layer3 = 1,
- LayerError = 0,
- Emphasis_None = 0,
- Emphasis_50_15_ms = 1,
- Emphasis_reserved = 2,
- Emphasis_CCIT_J_17 = 3,
- };
- uint16_t sync;
- uint8_t mpeg_version, layer, protection, bitrate_index;
- uint8_t padding_bit, private_bit, channel_mode, mode_extension;
- uint8_t sample_rate_index, copyright, original, emphasis;
- };
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