stagefright/codec2: fix KEY_PREPEND_HEADER_TO_SYNC_FRAMES

This had incorrectly was copied as KEY_PREPEND_HEADERS_TO_SYNC_FRAMES.

Change-Id: Ie42d2f1b06d693c4a0e66fcf061bfd26ce3b1005
diff --git a/media/codec2/sfplugin/CCodec.cpp b/media/codec2/sfplugin/CCodec.cpp
index a23b9bd..80ef0c1 100644
--- a/media/codec2/sfplugin/CCodec.cpp
+++ b/media/codec2/sfplugin/CCodec.cpp
@@ -1133,10 +1133,10 @@
         int32_t clientPrepend;
         if ((config->mDomain & Config::IS_VIDEO)
                 && (config->mDomain & Config::IS_ENCODER)
-                && msg->findInt32(KEY_PREPEND_HEADERS_TO_SYNC_FRAMES, &clientPrepend)
+                && msg->findInt32(KEY_PREPEND_HEADER_TO_SYNC_FRAMES, &clientPrepend)
                 && clientPrepend
                 && (!prepend || prepend.value != PREPEND_HEADER_TO_ALL_SYNC)) {
-            ALOGE("Failed to set KEY_PREPEND_HEADERS_TO_SYNC_FRAMES");
+            ALOGE("Failed to set KEY_PREPEND_HEADER_TO_SYNC_FRAMES");
             return BAD_VALUE;
         }
 
diff --git a/media/codec2/sfplugin/CCodecConfig.cpp b/media/codec2/sfplugin/CCodecConfig.cpp
index d3814fb..8a2a8cf 100644
--- a/media/codec2/sfplugin/CCodecConfig.cpp
+++ b/media/codec2/sfplugin/CCodecConfig.cpp
@@ -507,7 +507,7 @@
     add(ConfigMapper(std::string(KEY_FEATURE_) + FEATURE_SecurePlayback,
                      C2_PARAMKEY_SECURE_MODE, "value"));
 
-    add(ConfigMapper(KEY_PREPEND_HEADERS_TO_SYNC_FRAMES,
+    add(ConfigMapper(KEY_PREPEND_HEADER_TO_SYNC_FRAMES,
                      C2_PARAMKEY_PREPEND_HEADER_MODE, "value")
         .limitTo(D::ENCODER & D::VIDEO)
         .withMappers([](C2Value v) -> C2Value {
@@ -531,7 +531,7 @@
             return C2Value();
         }));
     // remove when codecs switch to PARAMKEY
-    deprecated(ConfigMapper(KEY_PREPEND_HEADERS_TO_SYNC_FRAMES,
+    deprecated(ConfigMapper(KEY_PREPEND_HEADER_TO_SYNC_FRAMES,
                             "coding.add-csd-to-sync-frames", "value")
                .limitTo(D::ENCODER & D::VIDEO));
     // convert to timestamp base
diff --git a/media/libstagefright/include/media/stagefright/MediaCodecConstants.h b/media/libstagefright/include/media/stagefright/MediaCodecConstants.h
index 6cf1ba0..9793b89 100644
--- a/media/libstagefright/include/media/stagefright/MediaCodecConstants.h
+++ b/media/libstagefright/include/media/stagefright/MediaCodecConstants.h
@@ -793,7 +793,7 @@
 constexpr char KEY_PCM_ENCODING[] = "pcm-encoding";
 constexpr char KEY_PIXEL_ASPECT_RATIO_HEIGHT[] = "sar-height";
 constexpr char KEY_PIXEL_ASPECT_RATIO_WIDTH[] = "sar-width";
-constexpr char KEY_PREPEND_HEADERS_TO_SYNC_FRAMES[] = "prepend-sps-pps-to-idr-frames";
+constexpr char KEY_PREPEND_HEADER_TO_SYNC_FRAMES[] = "prepend-sps-pps-to-idr-frames";
 constexpr char KEY_PRIORITY[] = "priority";
 constexpr char KEY_PROFILE[] = "profile";
 constexpr char KEY_PUSH_BLANK_BUFFERS_ON_STOP[] = "push-blank-buffers-on-shutdown";