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96 lines
2.9 KiB
C
96 lines
2.9 KiB
C
/* PipeWire */
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/* SPDX-FileCopyrightText: Copyright © 2023 Wim Taymans <wim.taymans@gmail.com> */
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/* SPDX-License-Identifier: MIT */
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#ifndef PIPEWIRE_RTP_STREAM_H
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#define PIPEWIRE_RTP_STREAM_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct rtp_stream;
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#define DEFAULT_FORMAT "S16BE"
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#define DEFAULT_RATE 48000
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#define DEFAULT_CHANNELS 2
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#define DEFAULT_POSITION "[ FL FR ]"
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#define DEFAULT_LAYOUT "Stereo"
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#define ERROR_MSEC 2.0f
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#define DEFAULT_SESS_LATENCY 100.0f
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#define IP4_HEADER_SIZE 20
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#define IP6_HEADER_SIZE 40
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#define UDP_HEADER_SIZE 8
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/* 12 bytes RTP header */
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#define RTP_HEADER_SIZE 12
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#define DEFAULT_MTU 1280
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#define DEFAULT_MIN_PTIME 2.0f
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#define DEFAULT_MAX_PTIME 20.0f
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struct rtp_stream_events {
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#define RTP_VERSION_STREAM_EVENTS 0
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uint32_t version;
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void (*destroy) (void *data);
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void (*report_error) (void *data, const char *error);
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/* Requests the network connection to be opened. If result is non-NULL,
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* the call sets it to >0 in case of success, and a negative errno error
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* code in case of failure. (Result value 0 is unused.) */
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void (*open_connection) (void *data, int *result);
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/* Requests the network connection to be closed. If result is non-NULL,
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* the call sets it to >0 in case of success, 0 if the connection was
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* already closed, and a negative errno error code in case of failure. */
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void (*close_connection) (void *data, int *result);
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void (*param_changed) (void *data, uint32_t id, const struct spa_pod *param);
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void (*send_packet) (void *data, struct iovec *iov, size_t iovlen);
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void (*send_feedback) (void *data, uint32_t seqnum);
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};
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struct rtp_stream *rtp_stream_new(struct pw_core *core,
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enum pw_direction direction, struct pw_properties *props,
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const struct rtp_stream_events *events, void *data);
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void rtp_stream_destroy(struct rtp_stream *s);
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int rtp_stream_update_properties(struct rtp_stream *s, const struct spa_dict *dict);
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int rtp_stream_receive_packet(struct rtp_stream *s, uint8_t *buffer, size_t len,
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uint64_t current_time);
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uint64_t rtp_stream_get_nsec(struct rtp_stream *s);
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uint64_t rtp_stream_get_time(struct rtp_stream *s, uint32_t *rate);
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uint16_t rtp_stream_get_seq(struct rtp_stream *s);
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size_t rtp_stream_get_mtu(struct rtp_stream *s);
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void rtp_stream_set_first(struct rtp_stream *s);
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int rtp_stream_set_active(struct rtp_stream *s, bool active);
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void rtp_stream_set_error(struct rtp_stream *s, int res, const char *error);
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enum pw_stream_state rtp_stream_get_state(struct rtp_stream *s, const char **error);
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int rtp_stream_set_param(struct rtp_stream *s, uint32_t id, const struct spa_pod *param);
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int rtp_stream_update_params(struct rtp_stream *stream,
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const struct spa_pod **params,
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uint32_t n_params);
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void rtp_stream_update_process_latency(struct rtp_stream *stream,
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const struct spa_process_latency_info *process_latency);
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#ifdef __cplusplus
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}
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#endif
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#endif /* PIPEWIRE_RTP_STREAM_H */
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