examples: update for mpg123_init() and sensible copyright

git-svn-id: svn://scm.orgis.org/mpg123/trunk@4831 35dc7657-300d-0410-a2e5-dc2837fedb53

NEWS

@@ -3,6 +3,8 @@
 - libmpg123: Running on precomputed tables now, no need to call
   mpg123_init() anymore. That and mpg123_exit() are both just
   empty shells now.
+- examples: Update for dropped mpg123_init(), more sensible
+  copyright notes.
 
 1.26.5
 ------

doc/examples/dumb_decoder.c

@@ -2,6 +2,8 @@
 	A simple and dumb decoder that does not even query the mpg123 output format.
 	It shall get MPG123_NEW_FORMAT once, but after that data!
 
+	This is example code only sensible to be considered in the public domain.
+
 	Beware: It writes raw audio to standard out!
 */
 
@@ -17,7 +19,11 @@ int main(int argc, char **argv)
 	int i;
 	int err;
 	mpg123_handle* mh;
+#if MPG123_API_VERSION < 46
+	// Newer versions of the library don't need that anymore, but it is safe
+	// to have the no-op call present for compatibility with old versions.
 	mpg123_init();
+#endif
 	mh = mpg123_new(NULL, NULL);
 	for(i=1; i<argc; ++i)
 	{
@@ -31,7 +37,6 @@ int main(int argc, char **argv)
 		}
 		else fprintf(stderr, "Failed to open file: %s\n", mpg123_strerror(mh));
 	}
-	mpg123_exit();
 }
 
 void decode_track(mpg123_handle *mh)

doc/examples/dump_seekindex.c

@@ -1,9 +1,8 @@
 /*
 	dump_seekindex: Scan a mpeg file and dump its seek index.
 
-	copyright 2010 by the mpg123 project - free software under the terms of the LGPL 2.1
-	see COPYING and AUTHORS files in distribution or http://mpg123.org
-	initially written by Patrick Dehne
+	This is example code only sensible to be considered in the public domain.
+	Initially written by Patrick Dehne.
 */
 
 #include <mpg123.h>
@@ -23,7 +22,11 @@ int main(int argc, char **argv)
 		fprintf(stderr, "\nUsage: %s <mpeg audio file>\n\n", argv[0]);
 		return -1;
 	}
-	mpg123_init();
+#if MPG123_API_VERSION < 46
+	// Newer versions of the library don't need that anymore, but it is safe
+	// to have the no-op call present for compatibility with old versions.
+	 mpg123_init();
+#endif
 	m = mpg123_new(NULL, NULL);
 	mpg123_param(m, MPG123_RESYNC_LIMIT, -1, 0);
 	mpg123_param(m, MPG123_INDEX_SIZE, -1, 0);
@@ -37,6 +40,5 @@ int main(int argc, char **argv)
 
 	mpg123_close(m);
 	mpg123_delete(m);
-	mpg123_exit();
 	return 0;
 }

doc/examples/extract_frames.c

@@ -1,9 +1,8 @@
 /*
 	extract_frams: utlize the framebyframe API and mpg123_framedata to extract the MPEG frames out of a stream (strip off anything else).
 
-	copyright 2011 by the mpg123 project - free software under the terms of the LGPL 2.1
-	see COPYING and AUTHORS files in distribution or http://mpg123.org
-	initially written by Thomas Orgis
+	This is example code only sensible to be considered in the public domain.
+	Initially written by Thomas Orgis.
 */
 
 #include <mpg123.h>
@@ -26,7 +25,11 @@ int main(int argc, char **argv)
 	int ret = 0;
 	mpg123_handle *m;
 
+#if MPG123_API_VERSION < 46
+	// Newer versions of the library don't need that anymore, but it is safe
+	// to have the no-op call present for compatibility with old versions.
 	mpg123_init();
+#endif
 	m = mpg123_new(NULL, &ret);
 
 	if(m == NULL)
@@ -53,7 +56,6 @@ int main(int argc, char **argv)
 
 		mpg123_delete(m); /* Closes, too. */
 	}
-	mpg123_exit();
 
 	return ret;
 }

doc/examples/feedseek.c

@@ -1,7 +1,7 @@
 /*
 	feedseek: test program for libmpg123, showing how to use fuzzy seeking in feeder mode
-	copyright 2008 by the mpg123 project - free software under the terms of the LGPL 2.1
-	see COPYING and AUTHORS files in distribution or http://mpg123.org	
+
+	This is example code only sensible to be considered in the public domain.
 */
 
 #include <mpg123.h>
@@ -110,7 +110,11 @@ int main(int argc, char **argv)
 		return -1;
 	}
 
+#if MPG123_API_VERSION < 46
+	// Newer versions of the library don't need that anymore, but it is safe
+	// to have the no-op call present for compatibility with old versions.
 	mpg123_init();
+#endif
 
 	m = mpg123_new(NULL, &ret);
 	if(m == NULL)
@@ -233,6 +237,5 @@ int main(int argc, char **argv)
 	fclose(out);
 	fclose(in);
 	mpg123_delete(m);
-	mpg123_exit();
 	return 0;
 }

doc/examples/id3dump.c

@@ -1,9 +1,8 @@
 /*
 	id3dump: Print ID3 tags of files, scanned using libmpg123.
 
-	copyright 2007 by the mpg123 project - free software under the terms of the LGPL 2.1
-	see COPYING and AUTHORS files in distribution or http://mpg123.org
-	initially written by Thomas Orgis
+	This is example code only sensible to be considered in the public domain.
+	Initially written by Thomas Orgis.
 */
 
 #include "mpg123.h"
@@ -141,7 +140,11 @@ int main(int argc, char **argv)
 		fprintf(stderr, "\nUsage: %s <mpeg audio file list>\n\n", argv[0]);
 		return -1;
 	}
+#if MPG123_API_VERSION < 46
+	// Newer versions of the library don't need that anymore, but it is safe
+	// to have the no-op call present for compatibility with old versions.
 	mpg123_init();
+#endif
 	m = mpg123_new(NULL, NULL);
 
 	for(i=1; i < argc; ++i)
@@ -173,6 +176,5 @@ int main(int argc, char **argv)
 		mpg123_close(m);
 	}
 	mpg123_delete(m);
-	mpg123_exit();
 	return 0;
 }

doc/examples/mpg123_to_out123.c

@@ -1,9 +1,8 @@
 /*
 	mpg123_to_wav.c
 
-	copyright 2007-2016 by the mpg123 project - free software under the terms of the LGPL 2.1
-	see COPYING and AUTHORS files in distribution or http://mpg123.org
-	initially written by Nicholas Humfrey
+	This is example code only sensible to be considered in the public domain.
+	Initially written by Nicholas Humfrey.
 
 	The most complicated part is about the choices to make about output format,
 	and prepare for the unlikely case a bastard mp3 might file change it.
@@ -29,7 +28,6 @@ void cleanup(mpg123_handle *mh, out123_handle *ao)
 	/* It's really to late for error checks here;-) */
 	mpg123_close(mh);
 	mpg123_delete(mh);
-	mpg123_exit();
 }
 
 int main(int argc, char *argv[])
@@ -62,7 +60,11 @@ int main(int argc, char *argv[])
 	printf("Output driver: %s\n", driver ? driver : "<nil> (default)");
 	printf("Output file:   %s\n", outfile ? outfile : "<nil> (default)");
 
+#if MPG123_API_VERSION < 46
+	// Newer versions of the library don't need that anymore, but it is safe
+	// to have the no-op call present for compatibility with old versions.
 	err = mpg123_init();
+#endif
 	if(err != MPG123_OK || (mh = mpg123_new(NULL, &err)) == NULL)
 	{
 		fprintf(stderr, "Basic setup goes wrong: %s", mpg123_plain_strerror(err));

doc/examples/mpg123_to_wav_replaced_io.c

@@ -1,9 +1,8 @@
 /*
 	mpg123_to_wav_replaced_io.c
 
-	copyright 2007-2015 by the mpg123 project - free software under the terms of the LGPL 2.1
-	see COPYING and AUTHORS files in distribution or http://mpg123.org
-	initially written by Nicholas Humfrey (moved to handle I/O by Thomas Orgis)
+	This is example code only sensible to be considered in the public domain.
+	Initially written by Nicholas Humfrey (moved to handle I/O by Thomas Orgis).
 
 	This example program demonstrates how to use libmpg123 to decode a file to WAV (writing via libsndfile), while doing the I/O (read and seek) with custom callback functions.
 	This should cater for any situation where you have some special means to get to the data (like, mmapped files / plain buffers in memory, funky network streams).
@@ -105,7 +104,11 @@ int main(int argc, char *argv[])
 	printf( "Input file: %s\n", argv[1]);
 	printf( "Output file: %s\n", argv[2]);
 
+#if MPG123_API_VERSION < 46
+	// Newer versions of the library don't need that anymore, but it is safe
+	// to have the no-op call present for compatibility with old versions.
 	err = mpg123_init();
+#endif
 
 	errno = 0;
 	iohandle = malloc(sizeof(struct ioh));

doc/examples/mpglib.c

@@ -1,9 +1,8 @@
 /*
 	mpglib: test program for libmpg123, in the style of the legacy mpglib test program
 
-	copyright 2007 by the mpg123 project - free software under the terms of the LGPL 2.1
-	see COPYING and AUTHORS files in distribution or http://mpg123.org
-	initially written by Thomas Orgis
+	This is example code only sensible to be considered in the public domain.
+	Initially written by Thomas Orgis.
 */
 
 #include <mpg123.h>
@@ -40,7 +39,11 @@ _setmode(_fileno(stdin),_O_BINARY);
 _setmode(_fileno(stdout),_O_BINARY);
 #endif
 
+#if MPG123_API_VERSION < 46
+	// Newer versions of the library don't need that anymore, but it is safe
+	// to have the no-op call present for compatibility with old versions.
 	mpg123_init();
+#endif
 	m = mpg123_new(argc > 1 ? argv[1] : NULL, &ret);
 	if(m == NULL)
 	{
@@ -87,6 +90,5 @@ _setmode(_fileno(stdout),_O_BINARY);
 
 	/* Done decoding, now just clean up and leave. */
 	mpg123_delete(m);
-	mpg123_exit();
 	return 0;
 }

doc/examples/scan.c

@@ -1,9 +1,8 @@
 /*
 	scan: Estimate length (sample count) of a mpeg file and compare to length from exact scan.
 
-	copyright 2007 by the mpg123 project - free software under the terms of the LGPL 2.1
-	see COPYING and AUTHORS files in distribution or http://mpg123.org
-	initially written by Thomas Orgis
+	This is example code only sensible to be considered in the public domain.
+	Initially written by Thomas Orgis
 */
 
 /* Note the lack of error checking here.
@@ -23,7 +22,9 @@ int main(int argc, char **argv)
 		fprintf(stderr, "\nUsage: %s <mpeg audio file list>\n\n", argv[0]);
 		return -1;
 	}
+#if MPG123_API_VERSION < 46
 	mpg123_init();
+#endif
 	m = mpg123_new(NULL, NULL);
 	mpg123_param(m, MPG123_RESYNC_LIMIT, -1, 0); /* New in library version 0.0.1 . */
 	for(i = 1; i < argc; ++i)
@@ -42,6 +43,5 @@ int main(int argc, char **argv)
 	}
 
 	mpg123_delete(m);
-	mpg123_exit();
 	return 0;
 }