commit de7d175031e54a8f2f12c89d920bfcc2bc7055a9
author Naresh Tanniru <ntanniru@codeaurora.org> Wed Jul 01 15:07:46 2015 +0530
committer Gerrit - the friendly Code Review server <code-review@localhost> Fri Jul 03 15:10:18 2015 -0700
tree aebad485db17e876f58b8ab5caa9704111c971cf
parent 26787462994babeac8582e1c21256fd7cdee3547

hal: Reduce minimum offload fragment size for PCM offload

- Video frame drops are observed on RTSP streaming
  for low sampling rate clips

- For PCM offload audio track uses server proxy position
  value to caluclate render position.
  Due to high minimum fragment size value of PCM offload,
  low sampling rate clips are using bigger audio buffer
  than desired 20ms PCM offload buffer. This results
  improper audio render position return to Nuplayer,
  which leads to video frame drops

- Reduce minimum fragement size for PCM offload from 4k
  to 512

Change-Id: I661f1ffe7cfd41edead82d06063802a3ad7b9b66

hal/msm8916/platform.c

diff --git a/hal/msm8916/platform.c b/hal/msm8916/platform.c
index bb229b8..50465e3 100644
--- a/hal/msm8916/platform.c
+++ b/hal/msm8916/platform.c
@@ -78,7 +78,7 @@
  * 24 - lcm of channels supported by DSP
  */
 #define MAX_PCM_OFFLOAD_FRAGMENT_SIZE (240 * 1024)
-#define MIN_PCM_OFFLOAD_FRAGMENT_SIZE (4 * 1024)
+#define MIN_PCM_OFFLOAD_FRAGMENT_SIZE  512
 
 /*
  * Offload buffer size for compress passthrough

hal/msm8974/platform.c

diff --git a/hal/msm8974/platform.c b/hal/msm8974/platform.c
index b30eb97..42e5b9b 100644
--- a/hal/msm8974/platform.c
+++ b/hal/msm8974/platform.c
@@ -75,7 +75,7 @@
  * 24 - lcm of channels supported by DSP
  */
 #define MAX_PCM_OFFLOAD_FRAGMENT_SIZE (240 * 1024)
-#define MIN_PCM_OFFLOAD_FRAGMENT_SIZE (4 * 1024)
+#define MIN_PCM_OFFLOAD_FRAGMENT_SIZE 512
 
 /*
  * Offload buffer size for compress passthrough