pcm_utils: added pcm_convert_init()

src/decoder_api.c

@@ -47,7 +47,7 @@ void decoder_initialized(struct decoder * decoder,
 {
 	assert(dc.state == DECODE_STATE_START);
 
-	memset(&decoder->conv_state, 0, sizeof(decoder->conv_state));
+	pcm_convert_init(&decoder->conv_state);
 
 	if (audio_format != NULL) {
 		dc.audioFormat = *audio_format;

src/output_init.c

@@ -90,7 +90,7 @@ int audio_output_init(struct audio_output *ao, ConfigParam * param)
 	ao->convBuffer = NULL;
 	ao->convBufferLen = 0;
 
-	memset(&ao->convState, 0, sizeof(ao->convState));
+	pcm_convert_init(&ao->convState);
 
 	if (format) {
 		if (0 != parseAudioConfig(&ao->reqAudioFormat, format)) {

src/pcm_utils.c

@@ -205,6 +205,11 @@ void pcm_mix(char *buffer1, const char *buffer2, size_t size,
 	pcm_add(buffer1, buffer2, size, vol1, 1000 - vol1, format);
 }
 
+void pcm_convert_init(struct pcm_convert_state *state)
+{
+	memset(state, 0, sizeof(*state));
+}
+
 #ifdef HAVE_LIBSAMPLERATE
 static int pcm_resample_get_converter(void)
 {

src/pcm_utils.h

@@ -51,6 +51,8 @@ void pcm_volume(char *buffer, int bufferSize,
 void pcm_mix(char *buffer1, const char *buffer2, size_t size,
              const struct audio_format *format, float portion1);
 
+void pcm_convert_init(struct pcm_convert_state *state);
+
 size_t pcm_convert(const struct audio_format *inFormat,
 		   const char *inBuffer, size_t inSize,
 		   const struct audio_format *outFormat,