Stagefright: Make classes customizable and add AV extensions

Change access modifiers and qualify methods with virtual, to
allow extensions. Add facility for loading customizations
(Extended classes) dynamically.

Conflicts:
	media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp

Change-Id: Icc8965754fb1c73175a13a9ad24c19665ad60988

1 files changed, 7 insertions, 1 deletions

diff --git a/media/libstagefright/ACodec.cpp b/media/libstagefright/ACodec.cpp
index e3cc413..5f8453f 100644
--- a/media/libstagefright/ACodec.cpp
+++ b/media/libstagefright/ACodec.cpp
@@ -539,6 +539,10 @@ ACodec::ACodec()
 ACodec::~ACodec() {
 }
 
+status_t ACodec::setupCustomCodec(status_t err, const char *, const sp<AMessage> &) {
+    return err;
+}
+
 void ACodec::setNotificationMessage(const sp<AMessage> &msg) {
     mNotify = msg;
 }
@@ -2125,6 +2129,8 @@ status_t ACodec::configureCodec(
         } else {
             err = setupEAC3Codec(encoder, numChannels, sampleRate);
         }
+    } else {
+        err = setupCustomCodec(err, mime, msg);
     }
 
     if (err != OK) {
@@ -2841,7 +2847,7 @@ static const struct VideoCodingMapEntry {
     { MEDIA_MIMETYPE_VIDEO_VP9, OMX_VIDEO_CodingVP9 },
 };
 
-static status_t GetVideoCodingTypeFromMime(
+status_t ACodec::GetVideoCodingTypeFromMime(
         const char *mime, OMX_VIDEO_CODINGTYPE *codingType) {
     for (size_t i = 0;
          i < sizeof(kVideoCodingMapEntry) / sizeof(kVideoCodingMapEntry[0]);