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Diffstat (limited to 'scene/resources/audio_stream_resampled.cpp')
-rw-r--r--scene/resources/audio_stream_resampled.cpp55
1 files changed, 55 insertions, 0 deletions
diff --git a/scene/resources/audio_stream_resampled.cpp b/scene/resources/audio_stream_resampled.cpp
index 506b34fbf6..6317780bd3 100644
--- a/scene/resources/audio_stream_resampled.cpp
+++ b/scene/resources/audio_stream_resampled.cpp
@@ -230,6 +230,51 @@ bool AudioStreamResampled::mix(int32_t *p_dest, int p_frames) {
case 4: read=_resample<4>(p_dest,todo,increment); break;
case 6: read=_resample<6>(p_dest,todo,increment); break;
}
+#if 1
+ //end of stream, fadeout
+ int remaining = p_frames-todo;
+ if (remaining && todo>0) {
+
+ //print_line("fadeout");
+ for(int c=0;c<channels;c++) {
+
+ for(int i=0;i<todo;i++) {
+
+ int32_t samp = p_dest[i*channels+c]>>8;
+ uint32_t mul = (todo-i) * 256 /todo;
+ //print_line("mul: "+itos(i)+" "+itos(mul));
+ p_dest[i*channels+c]=samp*mul;
+ }
+
+ }
+
+ }
+
+#else
+ int remaining = p_frames-todo;
+ if (remaining && todo>0) {
+
+
+ for(int c=0;c<channels;c++) {
+
+ int32_t from = p_dest[(todo-1)*channels+c]>>8;
+
+ for(int i=0;i<remaining;i++) {
+
+ uint32_t mul = (remaining-i) * 256 /remaining;
+ p_dest[(todo+i)*channels+c]=from*mul;
+ }
+
+ }
+
+ }
+#endif
+
+ //zero out what remains there to avoid glitches
+ for(int i=todo*channels;i<int(p_frames)*channels;i++) {
+
+ p_dest[i]=0;
+ }
if (read>rb_todo)
read=rb_todo;
@@ -316,6 +361,16 @@ AudioStreamResampled::AudioStreamResampled() {
rb=NULL;
offset=0;
read_buf=NULL;
+ rb_read_pos=0;
+ rb_write_pos=0;
+
+ rb_bits=0;
+ rb_len=0;
+ rb_mask=0;
+ read_buff_len=0;
+ channels=0;
+ mix_rate=0;
+
}
AudioStreamResampled::~AudioStreamResampled() {