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audio/flacdec: add eof handler avoiding endless spinning on broken files (thanks deuteron)

--- a/sys/src/cmd/audio/flacdec/flacdec.c

+++ b/sys/src/cmd/audio/flacdec/flacdec.c

@@ -119,6 +119,12 @@

 	fprintf(stderr, "decode error: %s (%d)\n", FLAC__StreamDecoderErrorStatusString[status], status);

 }

+static FLAC__bool

+checkeof(const FLAC__StreamDecoder*, void*)

+{

+	return feof(stdin);

+}

+

 int main(int argc, char *argv[])

 {

 	FLAC__bool ok = true;

@@ -125,7 +131,7 @@

 	FLAC__StreamDecoder *dec = 0;

 	dec = FLAC__stream_decoder_new();

-	FLAC__stream_decoder_init_stream(dec, decinput, NULL, NULL, NULL, NULL, decoutput, NULL, decerror, NULL);

+	FLAC__stream_decoder_init_stream(dec, decinput, NULL, NULL, NULL, checkeof, decoutput, NULL, decerror, NULL);

 	FLAC__stream_decoder_process_until_end_of_stream(dec);

 	FLAC__stream_decoder_finish(dec);

 	return 0;

-- 

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