shithub: libsamplerate

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Accept NULL data_in pointer when passing zero input frames

Closes: https://github.com/erikd/libsamplerate/pull/33
Signed-off-by: Erik de Castro Lopo <erikd@mega-nerd.com>

--- a/src/samplerate.c

+++ b/src/samplerate.c

@@ -141,7 +141,7 @@

 		return SRC_ERR_BAD_DATA ;

 	/* And that data_in and data_out are valid. */

-	if (data->data_in == NULL || data->data_out == NULL)

+	if ((data->data_in == NULL && data->input_frames > 0) || data->data_out == NULL)

 		return SRC_ERR_BAD_DATA_PTR ;

 	/* Check src_ratio is in range. */