56 lines
1.7 KiB
C
56 lines
1.7 KiB
C
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/*
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streamdump: I/O interposing for reading input streams
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This initially was about dumping a copy of the input data, as read
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by libmpg123. Now it is a generic interposer to wrap around plain file
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and network stream reading.
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copyright 2010-2022 by the mpg123 project - free software under the terms of the LGPL 2.1
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see COPYING and AUTHORS files in distribution or http://mpg123.org
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initially written by Thomas Orgis
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*/
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#ifndef STREAMDUMP_H
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#define STREAMDUMP_H
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#include "mpg123app.h"
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#ifdef NET123
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#include "net123.h"
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#endif
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#ifdef NETWORK
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#include "httpget.h"
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#endif
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// The stream is either addressed via file descriptor or net123 handle.
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struct stream
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{
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char buf[256]; // buffer for getline
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char *bufp; // read pointer in buffer
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int fill; // bytes in buffer
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int fd; // if > 0: plain file descriptor or win32 net socket
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struct httpdata htd;
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#ifdef NET123
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net123_handle *nh; // if != null: a net123 stream
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#endif
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};
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// Open a stream resource, creating and returning a new handle.
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struct stream * stream_open(const char *url);
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// Read lines, with arbitrary line end, which is stripped.
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// Return number of bytes in line (including closing zero byte) or error < 0.
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// End of file returns zero, consequently.
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mpg123_ssize_t stream_getline(struct stream *sd, mpg123_string *line);
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void stream_close(struct stream *sd);
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// Use an open stream object to optionally prepare the dump and
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// link up input to the mpg123 handle.
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// Can be called repeatedly to switch input methods with new
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// stream objects, but keeping a stream dump file open.
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// Return value is 0 for no error, -1 when bad.
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int dump_setup(struct stream *sd, mpg123_handle *mh);
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// Just close the dump output, not touching anything else.
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void dump_close(void);
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#endif
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