write_read_test.tpl

Audacity是一款用於錄音和編輯聲音的、免費的開放源碼軟體。它可以執行於Mac OS X、Microsoft Windows、GNU/Linux和其它作業系統

		} ;

	if (do_all || ! strcmp (argv [1], "sds"))
	{	pcm_test_char	("char.sds"		, SF_FORMAT_SDS | SF_FORMAT_PCM_S8, SF_TRUE) ;
		pcm_test_short	("short.sds"	, SF_FORMAT_SDS | SF_FORMAT_PCM_16, SF_TRUE) ;
		pcm_test_24bit	("24bit.sds"	, SF_FORMAT_SDS | SF_FORMAT_PCM_24, SF_TRUE) ;
		test_count++ ;
		} ;

	if (do_all || ! strcmp (argv [1], "sd2"))
	{	pcm_test_char	("char.sd2"		, SF_FORMAT_SD2 | SF_FORMAT_PCM_S8, SF_TRUE) ;
		pcm_test_short	("short.sd2"	, SF_FORMAT_SD2 | SF_FORMAT_PCM_16, SF_TRUE) ;
		pcm_test_24bit	("24bit.sd2"	, SF_FORMAT_SD2 | SF_FORMAT_PCM_24, SF_TRUE) ;
		test_count++ ;
		} ;

	if (test_count == 0)
	{	printf ("Mono : ************************************\n") ;
		printf ("Mono : *  No '%s' test defined.\n", argv [1]) ;
		printf ("Mono : ************************************\n") ;
		return 1 ;
		} ;

	/* Only open file descriptors should be stdin, stdout and stderr. */
	check_open_file_count_or_die (__LINE__) ;

	return 0 ;
} /* main */

/*============================================================================================
**	Helper functions and macros.
*/

static void	create_short_file (const char *filename) ;

#define	CHAR_ERROR(x,y)		(abs ((x) - (y)) > 255)
#define	INT_ERROR(x,y)		(((x) - (y)) != 0)
#define	TRIBYTE_ERROR(x,y)	(abs ((x) - (y)) > 255)
#define	FLOAT_ERROR(x,y)	(fabs ((x) - (y)) > 1e-5)

#define CONVERT_DATA(k,len,new,orig)					\
			{	for ((k) = 0 ; (k) < (len) ; (k) ++)	\
					(new) [k] = (orig) [k] ;			\
				}

[+ FOR data_type
+]
/*======================================================================================
*/

static void
pcm_test_[+ (get "type_name") +] (const char *filename, int format, int long_file_ok)
{	SNDFILE		*file ;
	SF_INFO		sfinfo ;
	[+ (get "data_type") +]		*orig, *test ;
	sf_count_t	count ;
	int			k, items, frames, pass, allow_fd ;

	/* Sd2 files cannot be opened from an existing file descriptor. */
	allow_fd = ((format & SF_FORMAT_TYPEMASK) == SF_FORMAT_SD2) ? SF_FALSE : SF_TRUE ;

	print_test_name ("pcm_test_[+ (get "type_name") +]", filename) ;

	sfinfo.samplerate	= 44100 ;
	sfinfo.frames		= SILLY_WRITE_COUNT ; /* Wrong length. Library should correct this on sf_close. */
	sfinfo.channels		= 1 ;
	sfinfo.format		= format ;

	gen_windowed_sine_double (orig_data, DATA_LENGTH, [+ (get "max_val") +]) ;

	orig = ([+ (get "data_type") +]*) orig_data ;
	test = ([+ (get "data_type") +]*) test_data ;

	/* Make this a macro so gdb steps over it in one go. */
	CONVERT_DATA (k, DATA_LENGTH, orig, orig_data) ;

	items = DATA_LENGTH ;

	file = test_open_file_or_die (filename, SFM_WRITE, &sfinfo, allow_fd, __LINE__) ;

	sf_set_string (file, SF_STR_ARTIST, "Your name here") ;

	test_write_[+ (get "data_type") +]_or_die (file, 0, orig, items, __LINE__) ;

	/* Add non-audio data after the audio. */
	sf_set_string (file, SF_STR_COPYRIGHT, "Copyright (c) 2003") ;

	sf_close (file) ;

	memset (test, 0, items * sizeof ([+ (get "data_type") +])) ;

	if ((format & SF_FORMAT_TYPEMASK) != SF_FORMAT_RAW)
		memset (&sfinfo, 0, sizeof (sfinfo)) ;

	file = test_open_file_or_die (filename, SFM_READ, &sfinfo, allow_fd, __LINE__) ;

	if (sfinfo.format != format)
	{	printf ("\n\nLine %d : Mono : Returned format incorrect (0x%08X => 0x%08X).\n", __LINE__, format, sfinfo.format) ;
		exit (1) ;
		} ;

	if (sfinfo.frames < items)
	{	printf ("\n\nLine %d : Mono : Incorrect number of frames in file (too short). (%ld should be %d)\n", __LINE__, SF_COUNT_TO_LONG (sfinfo.frames), items) ;
		exit (1) ;
		} ;

	if (! long_file_ok && sfinfo.frames > items)
	{	printf ("\n\nLine %d : Mono : Incorrect number of frames in file (too long). (%ld should be %d)\n", __LINE__, SF_COUNT_TO_LONG (sfinfo.frames), items) ;
		exit (1) ;
		} ;

	if (sfinfo.channels != 1)
	{	printf ("\n\nLine %d : Mono : Incorrect number of channels in file.\n", __LINE__) ;
		exit (1) ;
		} ;

	check_log_buffer_or_die (file, __LINE__) ;

	test_read_[+ (get "data_type") +]_or_die (file, 0, test, items, __LINE__) ;
	for (k = 0 ; k < items ; k++)
		if ([+ (get "error_func") +] (orig [k], test [k]))
		{	printf ("\n\nLine %d: Mono : Incorrect sample A (#%d : [+ (get "format_char") +] => [+ (get "format_char") +]).\n", __LINE__, k, orig [k], test [k]) ;
			exit (1) ;
			} ;

	/* Seek to start of file. */
	test_seek_or_die (file, 0, SEEK_SET, 0, sfinfo.channels, __LINE__) ;

	test_read_[+ (get "data_type") +]_or_die (file, 0, test, 4, __LINE__) ;
	for (k = 0 ; k < 4 ; k++)
		if ([+ (get "error_func") +] (orig [k], test [k]))
		{	printf ("\n\nLine %d : Mono : Incorrect sample A (#%d : [+ (get "format_char") +] => [+ (get "format_char") +]).\n", __LINE__, k, orig [k], test [k]) ;
			exit (1) ;
			} ;

	if ((format & SF_FORMAT_SUBMASK) == SF_FORMAT_DWVW_16 ||
			(format & SF_FORMAT_SUBMASK) == SF_FORMAT_DWVW_24)
	{	sf_close (file) ;
		unlink (filename) ;
		printf ("ok\n") ;
		return ;
		} ;

	/* Seek to offset from start of file. */
	test_seek_or_die (file, 10, SEEK_SET, 10, sfinfo.channels, __LINE__) ;

	test_read_[+ (get "data_type") +]_or_die (file, 0, test + 10, 4, __LINE__) ;
	for (k = 10 ; k < 14 ; k++)
		if ([+ (get "error_func") +] (orig [k], test [k]))
		{	printf ("\n\nLine %d : Mono : Incorrect sample A (#%d : [+ (get "format_char") +] => [+ (get "format_char") +]).\n", __LINE__, k, test [k], orig [k]) ;
			exit (1) ;
			} ;

	/* Seek to offset from current position. */
	test_seek_or_die (file, 6, SEEK_CUR, 20, sfinfo.channels, __LINE__) ;

	test_read_[+ (get "data_type") +]_or_die (file, 0, test + 20, 4, __LINE__) ;
	for (k = 20 ; k < 24 ; k++)
		if ([+ (get "error_func") +] (orig [k], test [k]))
		{	printf ("\n\nLine %d : Mono : Incorrect sample A (#%d : [+ (get "format_char") +] => [+ (get "format_char") +]).\n", __LINE__, k, test [k], orig [k]) ;
			exit (1) ;
			} ;

	/* Seek to offset from end of file. */
	test_seek_or_die (file, -1 * (sfinfo.frames - 10), SEEK_END, 10, sfinfo.channels, __LINE__) ;

	test_read_[+ (get "data_type") +]_or_die (file, 0, test + 10, 4, __LINE__) ;
	for (k = 10 ; k < 14 ; k++)
		if ([+ (get "error_func") +] (orig [k], test [k]))
		{	printf ("\n\nLine %d : Mono : Incorrect sample D (#%d : [+ (get "format_char") +] => [+ (get "format_char") +]).\n", __LINE__, k, test [k], orig [k]) ;
			exit (1) ;
			} ;

	/* Check read past end of file followed by sf_seek (sndfile, 0, SEEK_CUR). */
	test_seek_or_die (file, 0, SEEK_SET, 0, sfinfo.channels, __LINE__) ;

	count = 0 ;
	while (count < sfinfo.frames)
		count += sf_read_[+ (get "data_type") +] (file, test, 311) ;

	/* Check that no error has occurred. */
	if (sf_error (file))
	{	printf ("\n\nLine %d : Mono : error where there shouldn't have been one.\n", __LINE__) ;
		puts (sf_strerror (file)) ;
		exit (1) ;
		} ;

	/* Check that we haven't read beyond EOF. */
	if (count > sfinfo.frames)
	{	printf ("\n\nLines %d : read past end of file (%ld should be %ld)\n", __LINE__, (long) count, (long) sfinfo.frames) ;
		exit (1) ;
		} ;

	test_seek_or_die (file, 0, SEEK_CUR, sfinfo.frames, sfinfo.channels, __LINE__) ;

	sf_close (file) ;

	/*==================================================================================
	** Now test Mono RDWR.
	*/

	sfinfo.samplerate	= SAMPLE_RATE ;
	sfinfo.frames		= DATA_LENGTH ;
	sfinfo.channels		= 1 ;
	sfinfo.format		= format ;

	if ((format & SF_FORMAT_TYPEMASK) == SF_FORMAT_RAW || (format & SF_FORMAT_TYPEMASK) == SF_FORMAT_SD2)
		unlink (filename) ;
	else
	{	/* Create a short file. */
		create_short_file (filename) ;

		/* Opening a already existing short file (ie invalid header) RDWR is disallowed.
		** If this returns a valif pointer sf_open() screwed up.
		*/
		if ((file = sf_open (filename, SFM_RDWR, &sfinfo)))
		{	printf ("\n\nLine %d: sf_open should (SFM_RDWR) have failed but didn't.\n", __LINE__) ;
			exit (1) ;
			} ;

		/* Truncate the file to zero bytes. */
		if (truncate (filename, 0) < 0)
		{	printf ("\n\nLine %d: truncate (%s) failed", __LINE__, filename) ;
			perror (NULL) ;
			exit (1) ;
			} ;
		} ;

	/* Opening a zero length file RDWR is allowed, but the SF_INFO struct must contain
	** all the usual data required when opening the file in WRITE mode.
	*/
	sfinfo.samplerate	= SAMPLE_RATE ;
	sfinfo.frames		= DATA_LENGTH ;
	sfinfo.channels		= 1 ;
	sfinfo.format		= format ;

	file = test_open_file_or_die (filename, SFM_RDWR, &sfinfo, allow_fd, __LINE__) ;

	/* Do 3 writes followed by reads. After each, check the data and the current
	** read and write offsets.
	*/
	for (pass = 1 ; pass <= 3 ; pass ++)
	{	orig [20] = pass * 2 ;

		/* Write some data. */
		test_write_[+ (get "data_type") +]_or_die (file, pass, orig, DATA_LENGTH, __LINE__) ;

		test_read_write_position_or_die (file, __LINE__, pass, (pass - 1) * DATA_LENGTH, pass * DATA_LENGTH) ;

		/* Read what we just wrote. */
		test_read_[+ (get "data_type") +]_or_die (file, 0, test, DATA_LENGTH, __LINE__) ;

		/* Check the data. */
		for (k = 0 ; k < DATA_LENGTH ; k++)
			if ([+ (get "error_func") +] (orig [k], test [k]))
			{	printf ("\n\nLine %d (pass %d): Error at sample %d ([+ (get "format_char") +] => [+ (get "format_char") +]).\n", __LINE__, pass, k, orig [k], test [k]) ;
				oct_save_[+ (get "data_type") +] (orig, test, DATA_LENGTH) ;
				exit (1) ;
				} ;

		test_read_write_position_or_die (file, __LINE__, pass, pass * DATA_LENGTH, pass * DATA_LENGTH) ;
		} ; /* for (pass ...) */

	sf_close (file) ;

	/* Open the file again to check the data. */
	file = test_open_file_or_die (filename, SFM_RDWR, &sfinfo, allow_fd, __LINE__) ;

	if (sfinfo.format != format)
	{	printf ("\n\nLine %d : Returned format incorrect (0x%08X => 0x%08X).\n", __LINE__, format, sfinfo.format) ;
		exit (1) ;
		} ;

	if (sfinfo.frames < 3 * DATA_LENGTH)
	{	printf ("\n\nLine %d : Not enough frames in file. (%ld < %d)\n", __LINE__, SF_COUNT_TO_LONG (sfinfo.frames), 3 * DATA_LENGTH ) ;
		exit (1) ;
		}

	if (! long_file_ok && sfinfo.frames != 3 * DATA_LENGTH)
	{	printf ("\n\nLine %d : Incorrect number of frames in file. (%ld should be %d)\n", __LINE__, SF_COUNT_TO_LONG (sfinfo.frames), 3 * DATA_LENGTH ) ;
		exit (1) ;
		} ;

	if (sfinfo.channels != 1)
	{	printf ("\n\nLine %d : Incorrect number of channels in file.\n", __LINE__) ;
		exit (1) ;
		} ;

	if (! long_file_ok)
		test_read_write_position_or_die (file, __LINE__, 0, 0, 3 * DATA_LENGTH) ;
	else