Fix the pop noise with samplerate plugin

A (temporary) fix for the pop noise at the beginning of playback
with samplerate plugin.

diff --git a/rate/rate_samplerate.c b/rate/rate_samplerate.c
index d07e7cef2926838a5ac4379ac370c416b2d83b54..e366db06af3e2cf40281106dd59aa113e038ef8c 100644 (file)
--- a/rate/rate_samplerate.c
+++ b/rate/rate_samplerate.c
@@ -116,6 +116,7 @@ static void pcm_src_convert_s16(void *obj, int16_t *dst, unsigned int dst_frames
                                const int16_t *src, unsigned int src_frames)
 {
        struct rate_src *rate = obj;
+       unsigned int ofs;
 
        rate->data.input_frames = src_frames;
        rate->data.output_frames = dst_frames;
@@ -123,7 +124,12 @@ static void pcm_src_convert_s16(void *obj, int16_t *dst, unsigned int dst_frames
        
        src_short_to_float_array(src, rate->src_buf, src_frames * rate->channels);
        src_process(rate->state, &rate->data);
-       src_float_to_short_array(rate->dst_buf, dst, dst_frames * rate->channels);
+       if (rate->data.output_frames_gen < dst_frames)
+               ofs = dst_frames - rate->data.output_frames_gen;
+       else
+               ofs = 0;
+       src_float_to_short_array(rate->dst_buf, dst + ofs * rate->channels,
+                                rate->data.output_frames_gen * rate->channels);
 }
 
 static void pcm_src_close(void *obj)