shithub: libsamplerate

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Add public function sf_get_channels(). Suggested by Max Flax.

--- a/src/samplerate.c

+++ b/src/samplerate.c

@@ -1,5 +1,5 @@

 /*

-** Copyright (C) 2002-2012 Erik de Castro Lopo <[email protected]>

+** Copyright (C) 2002-2013 Erik de Castro Lopo <[email protected]>

 **

 ** This program is free software; you can redistribute it and/or modify

 ** it under the terms of the GNU General Public License as published by

@@ -288,6 +288,20 @@

 	return SRC_ERR_NO_ERROR ;

 } /* src_set_ratio */

+

+int

+src_get_channels (SRC_STATE *state)

+{	SRC_PRIVATE *psrc ;

+

+	psrc = (SRC_PRIVATE*) state ;

+

+	if (psrc == NULL)

+		return SRC_ERR_BAD_STATE ;

+	if (psrc->vari_process == NULL || psrc->const_process == NULL)

+		return SRC_ERR_BAD_PROC_PTR ;

+

+	return psrc->channels ;

+} /* src_get_channels */

 int

 src_reset (SRC_STATE *state)

--- a/src/samplerate.h

+++ b/src/samplerate.h

@@ -132,6 +132,13 @@

 int src_set_ratio (SRC_STATE *state, double new_ratio) ;

 /*

+**	Get the current channel count.

+**	Returns negative on error, positive channel count otherwise

+*/

+

+int src_get_channels (SRC_STATE *state) ;

+

+/*

 **	Reset the internal SRC state.

 **	Does not modify the quality settings.

 **	Does not free any memory allocations.