rawfile.h

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/* SPDX-License-Identifier: MIT */
#ifndef AJA_RAWFILE_H 
#define AJA_RAWFILE_H
 
const uint32_t AJAAudioHeaderTag = AJA_FOURCC('a','j','a','h');
const uint32_t AJAVideoHeaderTag = AJA_FOURCC('a','j','v','h');
const uint32_t AJAAudioDataTag   = AJA_FOURCC('a','j','a','d');
const uint32_t AJAVideoDataTag   = AJA_FOURCC('a','j','v','d');
 
#pragma pack(push,1)
 
struct AJARawAudioHeader
{
    uint32_t tag;           // should be AJAAudioHeaderTag
    int64_t size;           // sizeof(AJARawAudioHeader)
    int64_t scale;          // video frame scale for timecode, ie. 30000
    int64_t duration;       // video frame duration for timecode, ie. 1001
    int64_t timecode;       // video frame offset of first sample
 
    uint32_t rate;          // number of samples per second, ie. 48000
    uint32_t channels;      // number of channels, ie. 2,4,8, etc.
    uint32_t bigEndian;     // non-zero if samples are in big endian format
    uint32_t sampleSize;    // number of bytes per sample, ie. 2,3,4
    uint32_t isFloat;       // non-zero if samples are in floating point format
 
                            // crank this out to 1024 bytes for additional future stuff
    uint32_t reserved[(1024 - (sizeof(uint32_t) * 6) - (sizeof(int64_t) * 4)) / sizeof(uint32_t)];
};
 
struct AJARawVideoHeader
{
    uint32_t tag;           // should be AJAVideoHeaderTag
    int64_t size;           // sizeof(AJARawVideoHeader)
    int64_t scale;          // video frame scale for timecode, ie. 30000
    int64_t duration;       // video frame duration for timecode, ie. 1001
    int64_t timecode;       // video frame offset of first sample
 
    uint32_t fourcc;        // fourcc of video frames, this format implies fixed bytes per frame
    uint32_t xRes;          // x resolution of video frames, ie. 1920
    uint32_t yRes;          // y resolution of video frames, ie. 1080
    uint32_t bytesPerFrame; // number of bytes per frame of video, all frames are the same
    uint32_t aspectX;       // x aspect of video frames, ie. 1
    uint32_t aspectY;       // y aspect of video frames, ie. 1
    uint32_t interlace;     // interlace of frames, 0-progressive, 1-lower, 2-upper
 
                            // crank this out to 1024 bytes for additional future stuff
    uint32_t reserved[(1024 - (sizeof(uint32_t) * 8) - (sizeof(int64_t) * 4)) / sizeof(uint32_t)];
};
 
struct AJARawDataHeader
{
    uint32_t tag;           // should be AJAVideoDataTag or AJAAudioDataTag
    int64_t  size;          // if size is zero, go to end of file with this chunk
};
 
#pragma pack(pop)
 
#endif  //  AJA_RAWFILE_H