commit 8cf4ced8d25e9b1b56b69b544339acc1550e4038
author osamu fujita <osamu.x.fujita@sonymobile.com> Tue Oct 06 14:20:02 2015 +0900
committer Takahiro Aizawa <takahiro.aizawa@sonymobile.com> Tue Oct 27 18:34:51 2015 +0900
tree 14bc46b553b7a1f5d5c125def558e8d0cedd3381
parent 2d772fd4afd1481a8cea5f59b890d771dbada2f6

Tuning the number of packets for one read in StreamingSource

Read performance in StreamingSource became worse from LMR1 because
the design was changed to asynchronous from synchronous.
As a result, the generation of access unit does not make it
in time for some multiplexed contents, and this causes frame drop.
This patch improves read performance by increasing the number of
packets for one read.

Change-Id: I14955da5a9c5415e35905cc95f1471e0811a4991

media/libmediaplayerservice/nuplayer/StreamingSource.cpp

diff --git a/media/libmediaplayerservice/nuplayer/StreamingSource.cpp b/media/libmediaplayerservice/nuplayer/StreamingSource.cpp
index 0246b59..d4c88de 100644
--- a/media/libmediaplayerservice/nuplayer/StreamingSource.cpp
+++ b/media/libmediaplayerservice/nuplayer/StreamingSource.cpp
@@ -32,6 +32,8 @@
 
 namespace android {
 
+const int32_t kNumListenerQueuePackets = 80;
+
 NuPlayer::StreamingSource::StreamingSource(
         const sp<AMessage> &notify,
         const sp<IStreamSource> &source)
@@ -84,7 +86,7 @@
 }
 
 void NuPlayer::StreamingSource::onReadBuffer() {
-    for (int32_t i = 0; i < 50; ++i) {
+    for (int32_t i = 0; i < kNumListenerQueuePackets; ++i) {
         char buffer[188];
         sp<AMessage> extra;
         ssize_t n = mStreamListener->read(buffer, sizeof(buffer), &extra);