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Diffstat (limited to 'src/modules/module-avb/stream.h')
| -rw-r--r-- | src/modules/module-avb/stream.h | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/src/modules/module-avb/stream.h b/src/modules/module-avb/stream.h new file mode 100644 index 0000000..7062e25 --- /dev/null +++ b/src/modules/module-avb/stream.h @@ -0,0 +1,104 @@ +/* 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 AVB_STREAM_H +#define AVB_STREAM_H + +#include <sys/socket.h> +#include <sys/types.h> +#include <linux/if_packet.h> +#include <net/if.h> + +#include <spa/utils/ringbuffer.h> +#include <spa/param/audio/format.h> + +#include <pipewire/pipewire.h> + +#define BUFFER_SIZE (1u<<16) +#define BUFFER_MASK (BUFFER_SIZE-1) + +struct stream { + struct spa_list link; + + struct server *server; + + uint16_t direction; + uint16_t index; + const struct descriptor *desc; + uint64_t id; + uint64_t peer_id; + + struct pw_stream *stream; + struct spa_hook stream_listener; + + uint8_t addr[6]; + struct spa_source *source; + int prio; + int vlan_id; + int mtt; + int t_uncertainty; + uint32_t frames_per_pdu; + int ptime_tolerance; + + uint8_t pdu[2048]; + size_t hdr_size; + size_t payload_size; + size_t pdu_size; + int64_t pdu_period; + uint8_t pdu_seq; + uint8_t prev_seq; + uint8_t dbc; + + struct iovec iov[3]; + struct sockaddr_ll sock_addr; + struct msghdr msg; + char control[CMSG_SPACE(sizeof(uint64_t))]; + struct cmsghdr *cmsg; + + struct spa_ringbuffer ring; + void *buffer_data; + size_t buffer_size; + + uint64_t format; + uint32_t stride; + struct spa_audio_info info; + + struct avb_msrp_attribute *talker_attr; + struct avb_msrp_attribute *listener_attr; + struct avb_mvrp_attribute *vlan_attr; +}; + +#include "msrp.h" +#include "mvrp.h" +#include "maap.h" + +struct stream *server_create_stream(struct server *server, + enum spa_direction direction, uint16_t index); + +void stream_destroy(struct stream *stream); + +int stream_activate(struct stream *stream, uint64_t now); +int stream_deactivate(struct stream *stream, uint64_t now); + +#endif /* AVB_STREAM_H */ |