commit ca6a3f4a18f50e4121ccb2b191f0c48a5b8d6fed
author jiabin <jiabin@google.com> Thu Jun 09 20:33:47 2022 +0000
committer Jiabin Huang <jiabin@google.com> Wed Jun 15 18:23:20 2022 +0000
tree 976fede8a71614bd52c2256b8fad1e2019e9cf3b
parent a5219650a4917fd216e71b976f1cc194a4021a3c

AAudio: add IEC61937 support.

Add IEC61937 support. As IEC61937 is not supported by MMAP path,
whenever IEC61937 is requested, only try with legacy path.

Bug: 141583521
Test: manually
Change-Id: I62116b966d390fe80b9cba1a9df490fa23aa5326

media/libaaudio/src/core/AAudioStreamParameters.cpp

diff --git a/media/libaaudio/src/core/AAudioStreamParameters.cpp b/media/libaaudio/src/core/AAudioStreamParameters.cpp
index 8b7b75e..e654cda 100644
--- a/media/libaaudio/src/core/AAudioStreamParameters.cpp
+++ b/media/libaaudio/src/core/AAudioStreamParameters.cpp
@@ -58,6 +58,7 @@
         case AUDIO_FORMAT_PCM_32_BIT:
         case AUDIO_FORMAT_PCM_FLOAT:
         case AUDIO_FORMAT_PCM_24_BIT_PACKED:
+        case AUDIO_FORMAT_IEC61937:
             break; // valid
         default:
             ALOGD("audioFormat not valid, audio_format_t = 0x%08x", format);

media/libaaudio/src/core/AudioGlobal.cpp

diff --git a/media/libaaudio/src/core/AudioGlobal.cpp b/media/libaaudio/src/core/AudioGlobal.cpp
index 0e5b8be..30f9677 100644
--- a/media/libaaudio/src/core/AudioGlobal.cpp
+++ b/media/libaaudio/src/core/AudioGlobal.cpp
@@ -82,6 +82,7 @@
         AAUDIO_CASE_ENUM(AAUDIO_FORMAT_PCM_FLOAT);
         AAUDIO_CASE_ENUM(AAUDIO_FORMAT_PCM_I24_PACKED);
         AAUDIO_CASE_ENUM(AAUDIO_FORMAT_PCM_I32);
+        AAUDIO_CASE_ENUM(AAUDIO_FORMAT_IEC61937);
     }
     return "Unrecognized";
 }

media/libaaudio/src/core/AudioStreamBuilder.cpp

diff --git a/media/libaaudio/src/core/AudioStreamBuilder.cpp b/media/libaaudio/src/core/AudioStreamBuilder.cpp
index a100aa9..04b4325 100644
--- a/media/libaaudio/src/core/AudioStreamBuilder.cpp
+++ b/media/libaaudio/src/core/AudioStreamBuilder.cpp
@@ -192,6 +192,11 @@
         allowMMap = false;
     }
 
+    if (getFormat() == AUDIO_FORMAT_IEC61937) {
+        ALOGD("%s IEC61937 format is selected, do not allow MMAP in this case.", __func__);
+        allowMMap = false;
+    }
+
     if (!allowMMap && !allowLegacy) {
         ALOGE("%s() no backend available: neither MMAP nor legacy path are allowed", __func__);
         return AAUDIO_ERROR_ILLEGAL_ARGUMENT;

media/libaaudio/src/utility/AAudioUtilities.cpp

diff --git a/media/libaaudio/src/utility/AAudioUtilities.cpp b/media/libaaudio/src/utility/AAudioUtilities.cpp
index 872faca..a197ced 100644
--- a/media/libaaudio/src/utility/AAudioUtilities.cpp
+++ b/media/libaaudio/src/utility/AAudioUtilities.cpp
@@ -140,6 +140,9 @@
     case AAUDIO_FORMAT_PCM_I32:
         androidFormat = AUDIO_FORMAT_PCM_32_BIT;
         break;
+    case AAUDIO_FORMAT_IEC61937:
+        androidFormat = AUDIO_FORMAT_IEC61937;
+        break;
     default:
         androidFormat = AUDIO_FORMAT_INVALID;
         ALOGE("%s() 0x%08X unrecognized", __func__, aaudioFormat);
@@ -166,6 +169,9 @@
     case AUDIO_FORMAT_PCM_32_BIT:
         aaudioFormat = AAUDIO_FORMAT_PCM_I32;
         break;
+    case AUDIO_FORMAT_IEC61937:
+        aaudioFormat = AAUDIO_FORMAT_IEC61937;
+        break;
     default:
         aaudioFormat = AAUDIO_FORMAT_INVALID;
         ALOGE("%s() 0x%08X unrecognized", __func__, androidFormat);