HLS: QCom enhancements

This commit consists of:

http://go/pag/c/188753 Add NULL check for empty playlist
http://go/pag/c/188754 Fix deadlock for low duration clips
http://go/pag/c/188757 Create a copy of last enqueued metadata
http://go/pag/c/188755 Propagate target duration to LiveSession
http://go/pag/c/188762 Decouple block size from bandwidth estimate
http://go/pag/c/188756 Reduce memcpy calls for chunked content
http://go/pag/c/188758 Dont resume if we have almost fetched till stop time

Bug: 18821145
Change-Id: I7fd650999c6c50bbadffd65adee9020e669dfe62

1 files changed, 4 insertions, 1 deletions

diff --git a/media/libstagefright/include/HTTPBase.h b/media/libstagefright/include/HTTPBase.h
index 1c3cd5e..0c66e27 100644
--- a/media/libstagefright/include/HTTPBase.h
+++ b/media/libstagefright/include/HTTPBase.h
@@ -48,6 +48,8 @@ struct HTTPBase : public DataSource {
 
     virtual status_t setBandwidthStatCollectFreq(int32_t freqMs);
 
+    virtual void setBandwidthHistorySize(size_t numHistoryItems);
+
     static void RegisterSocketUserTag(int sockfd, uid_t uid, uint32_t kTag);
     static void UnRegisterSocketUserTag(int sockfd);
 
@@ -55,7 +57,7 @@ struct HTTPBase : public DataSource {
     static void UnRegisterSocketUserMark(int sockfd);
 
 protected:
-    void addBandwidthMeasurement(size_t numBytes, int64_t delayUs);
+    virtual void addBandwidthMeasurement(size_t numBytes, int64_t delayUs);
 
 private:
     struct BandwidthEntry {
@@ -69,6 +71,7 @@ private:
     size_t mNumBandwidthHistoryItems;
     int64_t mTotalTransferTimeUs;
     size_t mTotalTransferBytes;
+    size_t mMaxBandwidthHistoryItems;
 
     enum {
         kMinBandwidthCollectFreqMs = 1000,   // 1 second