commit 04e805b0a206161d3913b2c675d2d110c4f21f0f
author Phil Burk <philburk@google.com> Tue Mar 27 09:13:53 2018 -0700
committer Phil Burk <philburk@google.com> Thu Nov 19 14:52:58 2020 +0000
tree 4e20d50ae5dd1f1a82cd0e5fa7407b18dc55fd8d
parent bb29fdf9ae85ae6394e691ce38dafbfaa0411ff6

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

media/libaaudio/src/utility/AAudioUtilities.cpp

diff --git a/media/libaaudio/src/utility/AAudioUtilities.cpp b/media/libaaudio/src/utility/AAudioUtilities.cpp
index 3dfb801..d795725 100644
--- a/media/libaaudio/src/utility/AAudioUtilities.cpp
+++ b/media/libaaudio/src/utility/AAudioUtilities.cpp
@@ -134,6 +134,12 @@
     case AAUDIO_FORMAT_PCM_FLOAT:
         androidFormat = AUDIO_FORMAT_PCM_FLOAT;
         break;
+    case AAUDIO_FORMAT_PCM_I24_PACKED:
+        androidFormat = AUDIO_FORMAT_PCM_24_BIT_PACKED;
+        break;
+    case AAUDIO_FORMAT_PCM_I32:
+        androidFormat = AUDIO_FORMAT_PCM_32_BIT;
+        break;
     default:
         androidFormat = AUDIO_FORMAT_INVALID;
         ALOGE("%s() 0x%08X unrecognized", __func__, aaudioFormat);
@@ -154,6 +160,12 @@
     case AUDIO_FORMAT_PCM_FLOAT:
         aaudioFormat = AAUDIO_FORMAT_PCM_FLOAT;
         break;
+    case AUDIO_FORMAT_PCM_24_BIT_PACKED:
+        aaudioFormat = AAUDIO_FORMAT_PCM_I24_PACKED;
+        break;
+    case AUDIO_FORMAT_PCM_32_BIT:
+        aaudioFormat = AAUDIO_FORMAT_PCM_I32;
+        break;
     default:
         aaudioFormat = AAUDIO_FORMAT_INVALID;
         ALOGE("%s() 0x%08X unrecognized", __func__, androidFormat);