mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
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103 lines
2.8 KiB
C
103 lines
2.8 KiB
C
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/* AVB support
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*
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* Copyright © 2022 Wim Taymans
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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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_number;
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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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