flvtag.h

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#pragma once
 
 
#include <promeki/config.h>
#if PROMEKI_ENABLE_PROAV
#include <cstdint>
#include <promeki/namespace.h>
#include <promeki/buffer.h>
#include <promeki/bufferview.h>
#include <promeki/error.h>
#include <promeki/string.h>
#include <promeki/amf0.h>
 
PROMEKI_NAMESPACE_BEGIN
 
class FlvVideoTag {
        public:
                enum FrameType : uint8_t {
                        FrameTypeUnknown    = 0,
                        Keyframe            = 1, 
                        InterFrame          = 2,
                        DisposableInterFrame = 3,
                        GeneratedKeyframe   = 4,
                        InfoFrame           = 5
                };
 
                enum Codec : uint8_t {
                        CodecUnknown = 0,
                        H263         = 2,
                        Screen1      = 3,
                        Vp6          = 4,
                        Vp6Alpha     = 5,
                        Screen2      = 6,
                        Avc          = 7,
                        // Enhanced RTMP: not legacy CodecID values.
                        ExHevc       = 100,
                        ExVp9        = 101,
                        ExAv1        = 102
                };
 
                enum AvcPacketType : uint8_t {
                        SequenceHeader = 0, 
                        Nalu           = 1, 
                        EndOfSequence  = 2  
                };
 
                static constexpr uint32_t FourCcHvc1 = 0x68766331; 
                static constexpr uint32_t FourCcVp09 = 0x76703039; 
                static constexpr uint32_t FourCcAv01 = 0x61763031; 
 
                FrameType     frameType                = InterFrame;
                Codec         codec                    = Avc;
                AvcPacketType packetType               = Nalu;
                int32_t       compositionTimeOffsetMs  = 0;  
                Buffer        data;
 
                Error pack(Buffer &out) const;
 
                static Error unpack(const BufferView &in, FlvVideoTag &out);
};
 
class FlvAudioTag {
        public:
                enum SoundFormat : uint8_t {
                        LinearPcmPlatform     = 0,
                        Adpcm                 = 1,
                        Mp3                   = 2,
                        LinearPcmLittleEndian = 3,
                        Nellymoser16k         = 4,
                        Nellymoser8k          = 5,
                        Nellymoser            = 6,
                        G711ALaw              = 7,
                        G711MuLaw             = 8,
                        Aac                   = 10,
                        Speex                 = 11,
                        Mp38k                 = 14,
                        DeviceSpecific        = 15
                };
 
                enum SoundRate : uint8_t {
                        Rate5500  = 0,
                        Rate11000 = 1,
                        Rate22000 = 2,
                        Rate44000 = 3
                };
 
                enum SoundSize : uint8_t { Bits8 = 0, Bits16 = 1 };
 
                enum SoundType : uint8_t { Mono = 0, Stereo = 1 };
 
                enum AacPacketType : uint8_t {
                        AudioSpecificConfig = 0, 
                        Raw                 = 1  
                };
 
                SoundFormat   format        = Aac;
                SoundRate     rate          = Rate44000;
                SoundSize     size          = Bits16;
                SoundType     channelType   = Stereo;
                AacPacketType aacPacketType = Raw;
                Buffer        data;
 
                Error pack(Buffer &out) const;
 
                static Error unpack(const BufferView &in, FlvAudioTag &out);
};
 
class FlvScriptTag {
        public:
                promeki::String name;
 
                Amf0Value body;
 
                Error pack(Buffer &out) const;
 
                static Error unpack(const BufferView &in, FlvScriptTag &out);
};
 
PROMEKI_NAMESPACE_END
 
#endif // PROMEKI_ENABLE_PROAV