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82 lines
1.8 KiB
C
82 lines
1.8 KiB
C
/* AVB support */
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/* SPDX-FileCopyrightText: Copyright © 2022 Wim Taymans */
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/* SPDX-License-Identifier: MIT */
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#ifndef AVB_AAF_H
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#define AVB_AAF_H
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struct avb_packet_aaf {
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uint8_t subtype;
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#if __BYTE_ORDER == __BIG_ENDIAN
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unsigned sv:1;
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unsigned version:3;
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unsigned mr:1;
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unsigned _r1:1;
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unsigned gv:1;
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unsigned tv:1;
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uint8_t seq_num;
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unsigned _r2:7;
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unsigned tu:1;
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#elif __BYTE_ORDER == __LITTLE_ENDIAN
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unsigned tv:1;
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unsigned gv:1;
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unsigned _r1:1;
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unsigned mr:1;
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unsigned version:3;
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unsigned sv:1;
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uint8_t seq_num;
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unsigned tu:1;
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unsigned _r2:7;
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#endif
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uint64_t stream_id;
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uint32_t timestamp;
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#define AVB_AAF_FORMAT_USER 0x00
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#define AVB_AAF_FORMAT_FLOAT_32BIT 0x01
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#define AVB_AAF_FORMAT_INT_32BIT 0x02
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#define AVB_AAF_FORMAT_INT_24BIT 0x03
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#define AVB_AAF_FORMAT_INT_16BIT 0x04
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#define AVB_AAF_FORMAT_AES3_32BIT 0x05
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uint8_t format;
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#define AVB_AAF_PCM_NSR_USER 0x00
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#define AVB_AAF_PCM_NSR_8KHZ 0x01
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#define AVB_AAF_PCM_NSR_16KHZ 0x02
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#define AVB_AAF_PCM_NSR_32KHZ 0x03
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#define AVB_AAF_PCM_NSR_44_1KHZ 0x04
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#define AVB_AAF_PCM_NSR_48KHZ 0x05
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#define AVB_AAF_PCM_NSR_88_2KHZ 0x06
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#define AVB_AAF_PCM_NSR_96KHZ 0x07
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#define AVB_AAF_PCM_NSR_176_4KHZ 0x08
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#define AVB_AAF_PCM_NSR_192KHZ 0x09
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#define AVB_AAF_PCM_NSR_24KHZ 0x0A
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#if __BYTE_ORDER == __BIG_ENDIAN
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unsigned nsr:4;
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unsigned _r3:4;
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#elif __BYTE_ORDER == __LITTLE_ENDIAN
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unsigned _r3:4;
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unsigned nsr:4;
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#endif
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uint8_t chan_per_frame;
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uint8_t bit_depth;
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uint16_t data_len;
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#define AVB_AAF_PCM_SP_NORMAL 0x00
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#define AVB_AAF_PCM_SP_SPARSE 0x01
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#if __BYTE_ORDER == __BIG_ENDIAN
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unsigned _r4:3;
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unsigned sp:1;
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unsigned event:4;
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#elif __BYTE_ORDER == __LITTLE_ENDIAN
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unsigned event:4;
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unsigned sp:1;
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unsigned _r4:3;
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#endif
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uint8_t _r5;
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uint8_t payload[0];
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} __attribute__ ((__packed__));
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#endif /* AVB_AAF_H */
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