stagefright: Fix issue with tracking media format in packet source

Media format in AnotherPacketSource is now tracked across discontinuities.
This fixes a bug where format was set on queueAccessUnit and cleared on
dequeueAccessUnit, thereby allowing it to remain cleared.

Change-Id: I20975a630443f4a223a2b4344e8244f34b9560b9
Signed-off-by: Lajos Molnar <lajos@google.com>
Bug: 12060952

1 files changed, 5 insertions, 4 deletions

diff --git a/media/libstagefright/httplive/PlaylistFetcher.cpp b/media/libstagefright/httplive/PlaylistFetcher.cpp
index 1754bf2..f095987 100644
--- a/media/libstagefright/httplive/PlaylistFetcher.cpp
+++ b/media/libstagefright/httplive/PlaylistFetcher.cpp
@@ -861,12 +861,13 @@ status_t PlaylistFetcher::extractAndQueueAccessUnits(
                     && source->dequeueAccessUnit(&accessUnit) == OK) {
                 // Note that we do NOT dequeue any discontinuities.
 
+                // for simplicity, store a reference to the format in each unit
+                sp<MetaData> format = source->getFormat();
+                if (format != NULL) {
+                    accessUnit->meta()->setObject("format", format);
+                }
                 packetSource->queueAccessUnit(accessUnit);
             }
-
-            if (packetSource->getFormat() == NULL) {
-                packetSource->setFormat(source->getFormat());
-            }
         }
 
         return OK;