commit f911152d60b5e149e5baf699f547011977fc5a8a
author Ben Romberger <bromberg@codeaurora.org> Mon May 15 13:46:10 2017 -0700
committer Gerrit - the friendly Code Review server <code-review@localhost> Wed May 24 07:18:00 2017 -0700
tree 51c98db8a71e22aaa27a76bd8ffd5a6bbbe4d422
parent 28718c54549dae5d1ae4a02592ae9dc27c6b547f

hal: Add property to set TrueHD buffer size

Add the property audio.truehd.buffer.size.kb to
allow users to set the TrueHD buffer size to
a value other than the default of 2kb. TrueHD
is supported only for compress pass-through
and can be set as IEC format audio.

Change-Id: I97698eb84c7f6fe94219771650654204c203be55

hal/msm8916/platform.c

diff --git a/hal/msm8916/platform.c b/hal/msm8916/platform.c
index 935bae3..ed6b712 100644
--- a/hal/msm8916/platform.c
+++ b/hal/msm8916/platform.c
@@ -6327,9 +6327,18 @@
                                           audio_offload_info_t* info)
 {
     uint32_t fragment_size = MIN_COMPRESS_PASSTHROUGH_FRAGMENT_SIZE;
+    char value[PROPERTY_VALUE_MAX] = {0};
+
+    if (((info->format == AUDIO_FORMAT_DOLBY_TRUEHD) ||
+            (info->format == AUDIO_FORMAT_IEC61937)) &&
+            property_get("audio.truehd.buffer.size.kb", value, "") &&
+            atoi(value)) {
+        fragment_size = atoi(value) * 1024;
+        goto done;
+    }
     if (!info->has_video)
         fragment_size = MIN_COMPRESS_PASSTHROUGH_FRAGMENT_SIZE;
-
+done:
     return fragment_size;
 }
 

hal/msm8974/platform.c

diff --git a/hal/msm8974/platform.c b/hal/msm8974/platform.c
index 1d32409..88763ee 100644
--- a/hal/msm8974/platform.c
+++ b/hal/msm8974/platform.c
@@ -5996,9 +5996,18 @@
                                           audio_offload_info_t* info)
 {
     uint32_t fragment_size = MIN_COMPRESS_PASSTHROUGH_FRAGMENT_SIZE;
+    char value[PROPERTY_VALUE_MAX] = {0};
+
+    if (((info->format == AUDIO_FORMAT_DOLBY_TRUEHD) ||
+            (info->format == AUDIO_FORMAT_IEC61937)) &&
+            property_get("audio.truehd.buffer.size.kb", value, "") &&
+            atoi(value)) {
+        fragment_size = atoi(value) * 1024;
+        goto done;
+    }
     if (!info->has_video)
         fragment_size = MIN_COMPRESS_PASSTHROUGH_FRAGMENT_SIZE;
-
+done:
     return fragment_size;
 }