mirrors/pipewire
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/pipewire/pipewire.git synced 2025-11-07 13:30:09 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

avbtp: add beginnings of AVB manager module

Browse source
This commit is contained in:
Wim Taymans 2022-03-15 18:16:00 +01:00
parent af4875eb47
commit f470354e67
14 changed files with 1657 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

115
src/modules/module-avbtp/packets.h Normal file
View file

@ -0,0 +1,115 @@
/* Spa AVB support
*
* Copyright © 2022 Wim Taymans
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef AVBTP_PACKETS_H
#define AVBTP_PACKETS_H
#include <arpa/inet.h>
#define AVBTP_SUBTYPE_61883_IIDC 0x00
#define AVBTP_SUBTYPE_MMA_STREAM 0x01
#define AVBTP_SUBTYPE_AAF 0x02
#define AVBTP_SUBTYPE_CVF 0x03
#define AVBTP_SUBTYPE_CRF 0x04
#define AVBTP_SUBTYPE_TSCF 0x05
#define AVBTP_SUBTYPE_SVF 0x06
#define AVBTP_SUBTYPE_RVF 0x07
#define AVBTP_SUBTYPE_AEF_CONTINUOUS 0x6E
#define AVBTP_SUBTYPE_VSF_STREAM 0x6F
#define AVBTP_SUBTYPE_EF_STREAM 0x7F
#define AVBTP_SUBTYPE_NTSCF 0x82
#define AVBTP_SUBTYPE_ESCF 0xEC
#define AVBTP_SUBTYPE_EECF 0xED
#define AVBTP_SUBTYPE_AEF_DISCRETE 0xEE
#define AVBTP_SUBTYPE_ADP 0xFA
#define AVBTP_SUBTYPE_AECP 0xFB
#define AVBTP_SUBTYPE_ACMP 0xFC
#define AVBTP_SUBTYPE_MAAP 0xFE
#define AVBTP_SUBTYPE_EF_CONTROL 0xFF
struct avbtp_packet_common {
uint8_t subtype;
#if __BYTE_ORDER == __BIG_ENDIAN
unsigned sv:1; /* stream_id valid */
unsigned version:3;
unsigned subtype_data1:4;
#elif __BYTE_ORDER == __LITTLE_ENDIAN
unsigned subtype_data1:4;
unsigned version:3;
unsigned sv:1;
#elif
#error "Unknown byte order"
#endif
uint16_t subtype_data2;
uint64_t stream_id;
uint8_t payload[0];
} __attribute__ ((__packed__));
#define AVBTP_PACKET_SET_SUBTYPE(p,v) ((p)->subtype = (v))
#define AVBTP_PACKET_SET_SV(p,v) ((p)->sv = (v))
#define AVBTP_PACKET_SET_VERSION(p,v) ((p)->version = (v))
#define AVBTP_PACKET_SET_STREAM_ID(p,v) ((p)->stream_id = htobe64(v))
#define AVBTP_PACKET_GET_SUBTYPE(p) ((p)->subtype)
#define AVBTP_PACKET_GET_SV(p) ((p)->sv)
#define AVBTP_PACKET_GET_VERSION(p) ((p)->version)
#define AVBTP_PACKET_GET_STREAM_ID(p) be64toh((p)->stream_id)
struct avbtp_packet_cc {
uint8_t subtype;
#if __BYTE_ORDER == __BIG_ENDIAN
unsigned sv:1;
unsigned version:3;
unsigned control_data1:4;
unsigned status:5;
unsigned len1:3;
#elif __BYTE_ORDER == __LITTLE_ENDIAN
unsigned control_data1:4;
unsigned version:3;
unsigned sv:1;
unsigned len1:3;
unsigned status:5;
#endif
uint8_t len2:8;
uint64_t stream_id;
uint8_t payload[0];
} __attribute__ ((__packed__));
#define AVBTP_PACKET_CC_SET_SUBTYPE(p,v) ((p)->subtype = (v))
#define AVBTP_PACKET_CC_SET_SV(p,v) ((p)->sv = (v))
#define AVBTP_PACKET_CC_SET_VERSION(p,v) ((p)->version = (v))
#define AVBTP_PACKET_CC_SET_STREAM_ID(p,v) ((p)->stream_id = htobe64(v))
#define AVBTP_PACKET_CC_SET_STATUS(p,v) ((p)->status = (v))
#define AVBTP_PACKET_CC_SET_LENGTH(p,v) ((p)->len1 = ((v) >> 8),(p)->len2 = (v))
#define AVBTP_PACKET_CC_GET_SUBTYPE(p) ((p)->subtype)
#define AVBTP_PACKET_CC_GET_SV(p) ((p)->sv)
#define AVBTP_PACKET_CC_GET_VERSION(p) ((p)->version)
#define AVBTP_PACKET_CC_GET_STREAM_ID(p) be64toh((p)->stream_id)
#define AVBTP_PACKET_CC_GET_STATUS(p) ((p)->status)
#define AVBTP_PACKET_CC_GET_LENGTH(p) ((p)->len1 << 8 || (p)->len2)
#endif /* AVBTP_PACKETS_H */