Esempio n. 1
0
int
raw_open	(SF_PRIVATE *psf)
{	int	subformat, error = SFE_NO_ERROR ;

	subformat = psf->sf.format & SF_FORMAT_SUBMASK ;

	psf->endian = psf->sf.format & SF_FORMAT_ENDMASK ;

	if (CPU_IS_BIG_ENDIAN && (psf->endian == 0 || psf->endian == SF_ENDIAN_CPU))
		psf->endian = SF_ENDIAN_BIG ;
	else if (CPU_IS_LITTLE_ENDIAN && (psf->endian == 0 || psf->endian == SF_ENDIAN_CPU))
		psf->endian = SF_ENDIAN_LITTLE ;

	psf->blockwidth = psf->bytewidth * psf->sf.channels ;
	psf->dataoffset = 0 ;
	psf->datalength = psf->filelength ;

	switch (subformat)
	{	case SF_FORMAT_PCM_S8 :
				error = pcm_init (psf) ;
				break ;

		case SF_FORMAT_PCM_U8 :
				error = pcm_init (psf) ;
				break ;

		case SF_FORMAT_PCM_16 :
		case SF_FORMAT_PCM_24 :
		case SF_FORMAT_PCM_32 :
				error = pcm_init (psf) ;
				break ;

		case SF_FORMAT_ULAW :
				error = ulaw_init (psf) ;
				break ;

		case SF_FORMAT_ALAW :
				error = alaw_init (psf) ;
				break ;

		case SF_FORMAT_GSM610 :
				error = gsm610_init (psf) ;
				break ;

		/* Lite remove start */
		case SF_FORMAT_FLOAT :
				error = float32_init (psf) ;
				break ;

		case SF_FORMAT_DOUBLE :
				error = double64_init (psf) ;
				break ;

		case SF_FORMAT_DWVW_12 :
				error = dwvw_init (psf, 12) ;
				break ;

		case SF_FORMAT_DWVW_16 :
				error = dwvw_init (psf, 16) ;
				break ;

		case SF_FORMAT_DWVW_24 :
				error = dwvw_init (psf, 24) ;
				break ;

		case SF_FORMAT_VOX_ADPCM :
				error = vox_adpcm_init (psf) ;
				break ;
		/* Lite remove end */

		default : return SFE_BAD_OPEN_FORMAT ;
		} ;

	return error ;
} /* raw_open */
Esempio n. 2
0
int
w64_open	(SF_PRIVATE *psf)
{	WAV_PRIVATE * wpriv ;
	int	subformat, error, blockalign = 0, framesperblock = 0 ;

	if ((wpriv = calloc (1, sizeof (WAV_PRIVATE))) == NULL)
		return SFE_MALLOC_FAILED ;
	psf->container_data = wpriv ;

	if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR &&psf->filelength > 0))
	{	if ((error = w64_read_header (psf, &blockalign, &framesperblock)))
			return error ;
		} ;

	if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_W64)
		return	SFE_BAD_OPEN_FORMAT ;

	subformat = SF_CODEC (psf->sf.format) ;

	if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
	{	if (psf->is_pipe)
			return SFE_NO_PIPE_WRITE ;

		psf->endian = SF_ENDIAN_LITTLE ;		/* All W64 files are little endian. */

		psf->blockwidth = psf->bytewidth * psf->sf.channels ;

		if (subformat == SF_FORMAT_IMA_ADPCM || subformat == SF_FORMAT_MS_ADPCM)
		{	blockalign = wav_w64_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ;
			framesperblock = -1 ;

			/*
			** At this point we don't know the file length so set it stupidly high, but not
			** so high that it triggers undefined behaviour whan something is added to it.
			*/
			psf->filelength = SF_COUNT_MAX - 10000 ;
			psf->datalength = psf->filelength ;
			if (psf->sf.frames <= 0)
				psf->sf.frames = (psf->blockwidth) ? psf->filelength / psf->blockwidth : psf->filelength ;
			} ;

		if ((error = w64_write_header (psf, SF_FALSE)))
			return error ;

		psf->write_header = w64_write_header ;
		} ;

	psf->container_close = w64_close ;

	switch (subformat)
	{	case SF_FORMAT_PCM_U8 :
					error = pcm_init (psf) ;
					break ;

		case SF_FORMAT_PCM_16 :
		case SF_FORMAT_PCM_24 :
		case SF_FORMAT_PCM_32 :
					error = pcm_init (psf) ;
					break ;

		case SF_FORMAT_ULAW :
					error = ulaw_init (psf) ;
					break ;

		case SF_FORMAT_ALAW :
					error = alaw_init (psf) ;
					break ;

		/* Lite remove start */
		case SF_FORMAT_FLOAT :
					error = float32_init (psf) ;
					break ;

		case SF_FORMAT_DOUBLE :
					error = double64_init (psf) ;
					break ;

		case SF_FORMAT_IMA_ADPCM :
					error = wav_w64_ima_init (psf, blockalign, framesperblock) ;
					break ;

		case SF_FORMAT_MS_ADPCM :
					error = wav_w64_msadpcm_init (psf, blockalign, framesperblock) ;
					break ;
		/* Lite remove end */

		case SF_FORMAT_GSM610 :
					error = gsm610_init (psf) ;
					break ;

		default : 	return SFE_UNIMPLEMENTED ;
		} ;

	return error ;
} /* w64_open */
Esempio n. 3
0
File: w64.c Progetto: joshlong/libcd
int
w64_open	(SF_PRIVATE *psf)
{	int	subformat, error, blockalign = 0, framesperblock = 0 ;
	
	if (psf->mode == SFM_READ || (psf->mode == SFM_RDWR &&psf->filelength > 0))
	{	if ((error = w64_read_header (psf, &blockalign, &framesperblock)))
			return error ;
		};
		
	if ((psf->sf.format & SF_FORMAT_TYPEMASK) != SF_FORMAT_W64)
		return	SFE_BAD_OPEN_FORMAT ;
		
	subformat = psf->sf.format & SF_FORMAT_SUBMASK ;

	if (psf->mode == SFM_WRITE || psf->mode == SFM_RDWR)
	{	psf->endian      = SF_ENDIAN_LITTLE ;		/* All W64 files are little endian. */
	
		psf->blockwidth  = psf->bytewidth * psf->sf.channels ;

		if (subformat == SF_FORMAT_IMA_ADPCM || subformat == SF_FORMAT_MS_ADPCM)
		{	blockalign = wav_w64_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ;
			framesperblock = -1 ;

			/* FIXME : This block must go */
			SF_COUNT_MAX_POSITIVE (psf->filelength) ;
			psf->datalength = psf->filelength ;
			if (psf->sf.frames <= 0)
				psf->sf.frames = (psf->blockwidth) ? psf->filelength / psf->blockwidth : psf->filelength ; 
			/* EMXIF : This block must go */
			} ;

		if ((error = w64_write_header (psf, SF_FALSE)))
			return error ;

		psf->write_header = w64_write_header ;
		} ;

	psf->close = w64_close ;

	switch (subformat)
	{	case SF_FORMAT_PCM_U8 :
					error = pcm_init (psf) ;
					break ;

		case SF_FORMAT_PCM_16 : 
		case SF_FORMAT_PCM_24 : 
		case SF_FORMAT_PCM_32 : 
					error = pcm_init (psf) ;
					break ;

		case SF_FORMAT_FLOAT : 
					error = float32_init (psf) ;
					break ;

		case SF_FORMAT_DOUBLE : 
					error = double64_init (psf) ;
					break ;

		case SF_FORMAT_ULAW : 
					error = ulaw_init (psf) ;
					break ;
					
		case SF_FORMAT_ALAW : 
					error = alaw_init (psf) ;
					break ;

		case SF_FORMAT_IMA_ADPCM : 
					error = wav_w64_ima_init (psf, blockalign, framesperblock) ;
					break ;

		case SF_FORMAT_MS_ADPCM : 
					error = wav_w64_msadpcm_init (psf, blockalign, framesperblock) ;
					break ;

		case SF_FORMAT_GSM610 : 
					error = gsm610_init (psf) ;
					break ;

		default : 	return SFE_UNIMPLEMENTED ;
		} ;

	return error ;
} /* w64_open */