65 lines
2.4 KiB
C
65 lines
2.4 KiB
C
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/* SPDX-License-Identifier: MIT */
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/**
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@file rawfile.h
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@brief Defines data structures used to read and write AJA raw files.
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@copyright (C) 2011-2021 AJA Video Systems, Inc. All rights reserved.
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**/
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#ifndef AJA_RAWFILE_H
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#define AJA_RAWFILE_H
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const uint32_t AJAAudioHeaderTag = AJA_FOURCC('a','j','a','h');
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const uint32_t AJAVideoHeaderTag = AJA_FOURCC('a','j','v','h');
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const uint32_t AJAAudioDataTag = AJA_FOURCC('a','j','a','d');
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const uint32_t AJAVideoDataTag = AJA_FOURCC('a','j','v','d');
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#pragma pack(push,1)
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struct AJARawAudioHeader
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{
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uint32_t tag; // should be AJAAudioHeaderTag
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int64_t size; // sizeof(AJARawAudioHeader)
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int64_t scale; // video frame scale for timecode, ie. 30000
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int64_t duration; // video frame duration for timecode, ie. 1001
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int64_t timecode; // video frame offset of first sample
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uint32_t rate; // number of samples per second, ie. 48000
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uint32_t channels; // number of channels, ie. 2,4,8, etc.
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uint32_t bigEndian; // non-zero if samples are in big endian format
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uint32_t sampleSize; // number of bytes per sample, ie. 2,3,4
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uint32_t isFloat; // non-zero if samples are in floating point format
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// crank this out to 1024 bytes for additional future stuff
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uint32_t reserved[(1024 - (sizeof(uint32_t) * 6) - (sizeof(int64_t) * 4)) / sizeof(uint32_t)];
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};
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struct AJARawVideoHeader
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{
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uint32_t tag; // should be AJAVideoHeaderTag
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int64_t size; // sizeof(AJARawVideoHeader)
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int64_t scale; // video frame scale for timecode, ie. 30000
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int64_t duration; // video frame duration for timecode, ie. 1001
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int64_t timecode; // video frame offset of first sample
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uint32_t fourcc; // fourcc of video frames, this format implies fixed bytes per frame
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uint32_t xRes; // x resolution of video frames, ie. 1920
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uint32_t yRes; // y resolution of video frames, ie. 1080
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uint32_t bytesPerFrame; // number of bytes per frame of video, all frames are the same
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uint32_t aspectX; // x aspect of video frames, ie. 1
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uint32_t aspectY; // y aspect of video frames, ie. 1
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uint32_t interlace; // interlace of frames, 0-progressive, 1-lower, 2-upper
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// crank this out to 1024 bytes for additional future stuff
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uint32_t reserved[(1024 - (sizeof(uint32_t) * 8) - (sizeof(int64_t) * 4)) / sizeof(uint32_t)];
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};
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struct AJARawDataHeader
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{
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uint32_t tag; // should be AJAVideoDataTag or AJAAudioDataTag
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int64_t size; // if size is zero, go to end of file with this chunk
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};
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#pragma pack(pop)
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#endif // AJA_RAWFILE_H
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