7b24787e73
o flac works, opus and pcm are untested and not working - improve on resyncing issues - add wifi logger component submodule - optimize stack sizes
119 lines
2.7 KiB
C
119 lines
2.7 KiB
C
#ifndef __SNAPCAST_H__
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#define __SNAPCAST_H__
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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enum message_type
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{
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SNAPCAST_MESSAGE_BASE = 0,
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SNAPCAST_MESSAGE_CODEC_HEADER = 1,
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SNAPCAST_MESSAGE_WIRE_CHUNK = 2,
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SNAPCAST_MESSAGE_SERVER_SETTINGS = 3,
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SNAPCAST_MESSAGE_TIME = 4,
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SNAPCAST_MESSAGE_HELLO = 5,
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SNAPCAST_MESSAGE_STREAM_TAGS = 6,
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SNAPCAST_MESSAGE_FIRST = SNAPCAST_MESSAGE_BASE,
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SNAPCAST_MESSAGE_LAST = SNAPCAST_MESSAGE_STREAM_TAGS
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};
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typedef struct tv
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{
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int32_t sec;
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int32_t usec;
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} tv_t;
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typedef struct base_message
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{
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uint16_t type;
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uint16_t id;
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uint16_t refersTo;
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tv_t sent;
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tv_t received;
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uint32_t size;
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} base_message_t;
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#define BASE_MESSAGE_SIZE 26
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#define TIME_MESSAGE_SIZE 8
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int base_message_serialize (base_message_t *msg, char *data, uint32_t size);
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int base_message_deserialize (base_message_t *msg, const char *data,
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uint32_t size);
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/* Sample Hello message
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{
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"Arch": "x86_64",
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"ClientName": "Snapclient",
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"HostName": "my_hostname",
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"ID": "00:11:22:33:44:55",
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"Instance": 1,
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"MAC": "00:11:22:33:44:55",
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"OS": "Arch Linux",
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"SnapStreamProtocolVersion": 2,
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"Version": "0.17.1"
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}
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*/
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typedef struct hello_message
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{
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char *mac;
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char *hostname;
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char *version;
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char *client_name;
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char *os;
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char *arch;
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int instance;
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char *id;
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int protocol_version;
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} hello_message_t;
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char *hello_message_serialize (hello_message_t *msg, size_t *size);
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typedef struct server_settings_message
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{
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int32_t buffer_ms;
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int32_t latency;
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uint32_t volume;
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bool muted;
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} server_settings_message_t;
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int server_settings_message_deserialize (server_settings_message_t *msg,
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const char *json_str);
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typedef struct codec_header_message
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{
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char *codec;
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uint32_t size;
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char *payload;
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} codec_header_message_t;
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int codec_header_message_deserialize (codec_header_message_t *msg,
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const char *data, uint32_t size);
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void codec_header_message_free (codec_header_message_t *msg);
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typedef struct wire_chunk_message
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{
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tv_t timestamp;
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size_t size;
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char *payload;
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} wire_chunk_message_t;
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// TODO currently copies, could be made to not copy probably
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int wire_chunk_message_deserialize (wire_chunk_message_t *msg,
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const char *data, uint32_t size);
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void wire_chunk_message_free (wire_chunk_message_t *msg);
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typedef struct time_message
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{
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tv_t latency;
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} time_message_t;
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int time_message_serialize (time_message_t *msg, char *data, uint32_t size);
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int time_message_deserialize (time_message_t *msg, const char *data,
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uint32_t size);
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#endif // __SNAPCAST_H__
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