resample loops correctly according to current sample

rate of the engine

app/src/main/assets/lv2/liblooper.so/looper.json

@@ -1 +1 @@
-{"-1": {"Plugin": true, "AmplifierPlugin": true, "optionalFeature": "http://lv2plug.in/ns/lv2core#hardRTCapable", "port": "_:n62c4bb580b1c42edb579f4b1e2d6cc04b8", "project": "http://lv2plug.in/ns/lv2", "http://usefulinc.com/ns/doap#license": "http://opensource.org/licenses/isc", "http://usefulinc.com/ns/doap#name": "Looper Plugin", "pluginName": "Looper"}, "0": {"InputPort": true, "ControlPort": true, "default": "0.0", "index": 0, "maximum": 1, "minimum": 0, "name": "Toggle Record", "symbol": "toggle_rec"}, "1": {"InputPort": true, "ControlPort": true, "default": "0.0", "index": 1, "maximum": 1, "minimum": 0, "name": "Toggle Playback", "symbol": "toggle_play"}, "3": {"InputPort": true, "ControlPort": true, "default": "1.0", "index": 3, "maximum": 6, "minimum": 0, "name": "Gain", "symbol": "gain"},  "4": {"InputPort": true, "ControlPort": true, "default": 1024, "index": 4, "maximum": 2048, "minimum": 128, "name": "Buffer Size", "symbol": "buffer_size_control"}, "5": {"InputPort": true, "ControlPort": true, "default": 0, "index": 5, "maximum": 25, "minimum": 0, "step": 0.5, "name": "Start", "symbol": "start"}, "6": {"InputPort": true, "ControlPort": true, "step": 0.5, "default": 100, "index": 6, "maximum": 100, "minimum": 75, "name": "End", "symbol": "end"}, "7": {"AudioPort": true, "InputPort": true, "index": 7, "name": "In", "symbol": "input"}, "8": {"AudioPort": true, "OutputPort": true, "index": 8, "name": "Out", "symbol": "output"}}
+{"-1": {"Plugin": true, "AmplifierPlugin": true, "optionalFeature": "http://lv2plug.in/ns/lv2core#hardRTCapable", "port": "_:n62c4bb580b1c42edb579f4b1e2d6cc04b8", "project": "http://lv2plug.in/ns/lv2", "http://usefulinc.com/ns/doap#license": "http://opensource.org/licenses/isc", "http://usefulinc.com/ns/doap#name": "Looper Plugin", "pluginName": "Looper"}, "0": {"InputPort": true, "ControlPort": true, "default": "0.0", "index": 0, "maximum": 1, "minimum": 0, "name": "Toggle Record", "symbol": "toggle_rec"}, "1": {"InputPort": true, "ControlPort": true, "default": "0.0", "index": 1, "maximum": 1, "minimum": 0, "name": "Toggle Playback", "symbol": "toggle_play"}, "3": {"InputPort": true, "ControlPort": true, "default": "1.0", "index": 3, "maximum": 6, "minimum": 0, "name": "Gain", "symbol": "gain"},  "4": {"InputPort": true, "ControlPort": true, "default": 1024, "index": 4, "maximum": 2048, "minimum": 128, "name": "Buffer Size", "symbol": "buffer_size_control"}, "5": {"InputPort": true, "ControlPort": true, "default": 0, "index": 5, "maximum": 25, "minimum": 0, "step": 0.5, "name": "✂ Start", "symbol": "start"}, "6": {"InputPort": true, "ControlPort": true, "step": 0.5, "default": 100, "index": 6, "maximum": 100, "minimum": 75, "name": "✂ End", "symbol": "end"}, "7": {"AudioPort": true, "InputPort": true, "index": 7, "name": "In", "symbol": "input"}, "8": {"AudioPort": true, "OutputPort": true, "index": 8, "name": "Out", "symbol": "output"}}

app/src/main/java/com/shajikhan/ladspa/amprack/AudioDecoder.java

@@ -96,6 +96,8 @@ float[] decode (FileDescriptor fileDescriptor, String mimeType, int _sampleRate)
         int channels = format.getInteger(MediaFormat.KEY_CHANNEL_COUNT);
         String mime = format.getString(MediaFormat.KEY_MIME);
         Log.d(TAG, String.format ("mimetype: %s", mimeType));
+        codec = MediaCodec.createDecoderByType(mime);
+        /*
         if (_sampleRate != -1) {
             codec = MediaCodec.createEncoderByType(mimeType);
             Log.d(TAG, String.format ("converting to: %s [%d]", mimeType, sampleRate));
@@ -104,9 +106,11 @@ float[] decode (FileDescriptor fileDescriptor, String mimeType, int _sampleRate)
             Log.d(TAG, String.format ("converting to: %s [%d]", mime, sampleRate));
         }
 
+         */
+
         Log.i(TAG, "decode: detected format " + mime);
-        if (_sampleRate != -1)
-            format.setInteger(MediaFormat.KEY_SAMPLE_RATE, sampleRate);
+//        if (_sampleRate != -1)
+//            format.setInteger(MediaFormat.KEY_SAMPLE_RATE, sampleRate);
 
         codec.configure(format, null /* surface */, null /* crypto */, 0 /* flags */);
         codec.start();
@@ -217,7 +221,7 @@ float[] decode (FileDescriptor fileDescriptor, String mimeType, int _sampleRate)
             decoded = mono;
         }
 
-        if (sampleRate == 48000)
+        if (sampleRate == _sampleRate)
             return decoded;
 
         ByteBuffer bb = ByteBuffer.allocateDirect(decoded.length * 4);
@@ -227,7 +231,7 @@ float[] decode (FileDescriptor fileDescriptor, String mimeType, int _sampleRate)
         floatBuffer.position(0);
 
         Resampler resampler = new Resampler(true,0.1,30);
-        boolean result = resampler.process((double)48000.0/sampleRate,floatBuffer,true,resampled);
+        boolean result = resampler.process((double)_sampleRate/sampleRate,floatBuffer,true,resampled);
         float [] res = new float[resampled.limit()];
 //                resampled.position(0);
         for (int i = 0 ; i < resampled.limit(); i ++) {

app/src/main/java/com/shajikhan/ladspa/amprack/MainActivity.java

@@ -1579,7 +1579,7 @@ public void onActivityResult(int requestCode, int resultCode, Intent data) {
             }
 
             try {
-                float [] samples = audioDecoder.decode(data.getData(), null, -1);
+                float [] samples = audioDecoder.decode(data.getData(), null, AudioEngine.getSampleRate());
                 AudioEngine.setPluginBuffer(samples, plugin);
             } catch (IOException e) {
                 toast(e.getMessage());