aaudio: add support for 24 and 32 bit PCM
Add new formats: AAUDIO_FORMAT_PCM_I24_PACKED
and AAUDIO_FORMAT_PCM_I32.
Pass formats to Legacy AudioTrack and AuddioRecord.
Request 24_PACKED in AAudio Service for MMAP streams.
Also add a flowgraph module for converting the I32 data
to/from FLOAT.
Bug: 65067568
Bug: 157671580
Test: To determine which format the MMAP path is using for the DSP,
Test: adb shell dumpsys media.aaudio
Test: then look for the "Exclusive MMAP Endpoints" and "Format:".
Test: The formats listed are the internal AudioFlinger formats:
Test: 1=16_BIT, 3=32_BIT, 4=8_24_BIT, 5=FLOAT, 6=24_BIT_PACKED
Test: atest AAudioTestCases
Test: adb shell write_sine_callback -? # to list new formats
Test: adb shell write_sine_callback -pl -f3 # MMAP LOWLAT I24_PACKED
Test: adb shell write_sine_callback -pl -f4 # MMAP LOWLAT I32
Test: # Legacy LOWLAT I24_PACKED
Test: adb shell write_sine_callback -pl -f3 -m1
Test: adb shell write_sine_callback -pl -f4 -m1 # Legacy LOWLAT I32
Test: adb shell write_sine_callback -pn -f3 # Legacy I24_PACKED
Test: adb shell write_sine_callback -pn -f4 # Legacy I32
Change-Id: Ibe13bfd54425d110f50f89eb10c63872a2f99839
diff --git a/media/libaaudio/src/flowgraph/SinkI32.h b/media/libaaudio/src/flowgraph/SinkI32.h
new file mode 100644
index 0000000..09d23b7
--- /dev/null
+++ b/media/libaaudio/src/flowgraph/SinkI32.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FLOWGRAPH_SINK_I32_H
+#define FLOWGRAPH_SINK_I32_H
+
+#include <stdint.h>
+
+#include "AudioProcessorBase.h"
+
+namespace flowgraph {
+
+class SinkI32 : public AudioSink {
+public:
+ explicit SinkI32(int32_t channelCount);
+ ~SinkI32() override = default;
+
+ int32_t read(void *data, int32_t numFrames) override;
+};
+
+} /* namespace flowgraph */
+
+#endif //FLOWGRAPH_SINK_I32_H