Fix build with latest rockchip-mpp version 20171218

References
----------
https://trac.ffmpeg.org/ticket/6834
http://git.videolan.org/?p=ffmpeg.git;a=commit;h=c6f84106366c6f243a8b07dbffcc7880009aa904

Also important
--------------
http://git.videolan.org/?p=ffmpeg.git;a=commit;h=2ca65fc7b74444edd51d5803a2c1e05a801a6023

PKGBUILD

@@ -8,7 +8,7 @@
 pkgname=ffmpeg-full
 _srcname=ffmpeg
 pkgver=3.4.1
-pkgrel=1
+pkgrel=2
 pkgdesc='Record, convert and stream audio and video (all possible features including nvenc, qsv and libfdk-aac)'
 arch=('i686' 'x86_64')
 url='http://www.ffmpeg.org/'
@@ -51,10 +51,21 @@ conflicts=(
     'ffmpeg-git' 'ffmpeg-full-git' 'ffmpeg-semifull-git' 'ffmpeg-qsv-git'
 )
 source=("https://ffmpeg.org/releases/ffmpeg-${pkgver}.tar.xz"
+        'ffmpeg-full-rkmpp-build-fix.patch'
+        'ffmpeg-full-rkmpp-remove-stream-start.patch'
         'LICENSE')
 sha256sums=('5a77278a63741efa74e26bf197b9bb09ac6381b9757391b922407210f0f991c0'
+            '142923fd02851343bfbfd31b201ba014dced8a8c8898373c72d71d30d59f5851'
+            'cac8577126c3e49f8c915fa289f3f5aa624dc55f897b8b7a5613191bcfa9c097'
             '04a7176400907fd7db0d69116b99de49e582a6e176b3bfb36a03e50a4cb26a36')
 
+prepare() {
+    cd "${_srcname}-${pkgver}"
+    
+    patch -Np1 -i "${srcdir}/ffmpeg-full-rkmpp-build-fix.patch"
+    patch -Np1 -i "${srcdir}/ffmpeg-full-rkmpp-remove-stream-start.patch"
+}
+
 build() {
     cd "${_srcname}-${pkgver}"