ffmpeg/android: collect assemble object automatically

android/contrib/tools/do-compile-ffmpeg.sh

@@ -85,7 +85,9 @@ FF_CFG_FLAGS=
 FF_EXTRA_CFLAGS=
 FF_EXTRA_LDFLAGS=
 FF_DEP_LIBS=
-FF_ASM_OBJ_DIR=
+
+FF_MODULE_DIRS="compat libavcodec libavfilter libavformat libavutil libswresample libswscale"
+FF_ASSEMBLER_SUB_DIRS=
 
 #--------------------
 echo ""
@@ -124,7 +126,7 @@ if [ "$FF_ARCH" = "armv7a" ]; then
     FF_EXTRA_CFLAGS="$FF_EXTRA_CFLAGS -march=armv7-a -mcpu=cortex-a8 -mfpu=vfpv3-d16 -mfloat-abi=softfp -mthumb"
     FF_EXTRA_LDFLAGS="$FF_EXTRA_LDFLAGS -Wl,--fix-cortex-a8"
 
-    FF_ASM_OBJ_DIR="libavcodec/arm/*.o libavutil/arm/*.o libswresample/arm/*.o"
+    FF_ASSEMBLER_SUB_DIRS="arm"
 
 elif [ "$FF_ARCH" = "armv5" ]; then
     FF_BUILD_NAME=ffmpeg-armv5
@@ -139,7 +141,7 @@ elif [ "$FF_ARCH" = "armv5" ]; then
     FF_EXTRA_CFLAGS="$FF_EXTRA_CFLAGS -march=armv5te -mtune=arm9tdmi -msoft-float"
     FF_EXTRA_LDFLAGS="$FF_EXTRA_LDFLAGS"
 
-    FF_ASM_OBJ_DIR="libavcodec/arm/*.o libavutil/arm/*.o libswresample/arm/*.o"
+    FF_ASSEMBLER_SUB_DIRS="arm"
 
 elif [ "$FF_ARCH" = "x86" ]; then
     FF_BUILD_NAME=ffmpeg-x86
@@ -154,7 +156,7 @@ elif [ "$FF_ARCH" = "x86" ]; then
     FF_EXTRA_CFLAGS="$FF_EXTRA_CFLAGS -march=atom -msse3 -ffast-math -mfpmath=sse"
     FF_EXTRA_LDFLAGS="$FF_EXTRA_LDFLAGS"
 
-    FF_ASM_OBJ_DIR="libavcodec/x86/*.o libavfilter/x86/*.o libavutil/x86/*.o libswresample/x86/*.o libswscale/x86/*.o"
+    FF_ASSEMBLER_SUB_DIRS="x86"
 
 elif [ "$FF_ARCH" = "x86_64" ]; then
     FF_ANDROID_PLATFORM=android-21
@@ -171,7 +173,7 @@ elif [ "$FF_ARCH" = "x86_64" ]; then
     FF_EXTRA_CFLAGS="$FF_EXTRA_CFLAGS"
     FF_EXTRA_LDFLAGS="$FF_EXTRA_LDFLAGS"
 
-    FF_ASM_OBJ_DIR="libavcodec/x86/*.o libavfilter/x86/*.o libavutil/x86/*.o libswresample/x86/*.o libswscale/x86/*.o"
+    FF_ASSEMBLER_SUB_DIRS="x86"
 
 elif [ "$FF_ARCH" = "arm64" ]; then
     FF_ANDROID_PLATFORM=android-21
@@ -188,7 +190,7 @@ elif [ "$FF_ARCH" = "arm64" ]; then
     FF_EXTRA_CFLAGS="$FF_EXTRA_CFLAGS"
     FF_EXTRA_LDFLAGS="$FF_EXTRA_LDFLAGS"
 
-    FF_ASM_OBJ_DIR="libavcodec/aarch64/*.o libavutil/aarch64/*.o libswresample/aarch64/*.o libavcodec/neon/*.o"
+    FF_ASSEMBLER_SUB_DIRS="aarch64"
 
 else
     echo "unknown architecture $FF_ARCH";
@@ -325,16 +327,31 @@ echo "--------------------"
 echo "[*] link ffmpeg"
 echo "--------------------"
 echo $FF_EXTRA_LDFLAGS
+
+FF_C_OBJ_FILES=
+FF_ASM_OBJ_FILES=
+for MODULE_DIR in $FF_MODULE_DIRS
+do
+    C_OBJ_FILES="$MODULE_DIR/*.o"
+    if ls $C_OBJ_FILES 1> /dev/null 2>&1; then
+        echo "link $MODULE_DIR/*.o"
+        FF_C_OBJ_FILES="$FF_C_OBJ_FILES $C_OBJ_FILES"
+    fi
+
+    for ASM_SUB_DIR in $FF_ASSEMBLER_SUB_DIRS
+    do
+        ASM_OBJ_FILES="$MODULE_DIR/$ASM_SUB_DIR/*.o"
+        if ls $ASM_OBJ_FILES 1> /dev/null 2>&1; then
+            echo "link $MODULE_DIR/$ASM_SUB_DIR/*.o"
+            FF_ASM_OBJ_FILES="$FF_ASM_OBJ_FILES $ASM_OBJ_FILES"
+        fi
+    done
+done
+
 $CC -lm -lz -shared --sysroot=$FF_SYSROOT -Wl,--no-undefined -Wl,-z,noexecstack $FF_EXTRA_LDFLAGS \
     -Wl,-soname,libijkffmpeg.so \
-    compat/*.o \
-    libavcodec/*.o \
-    libavfilter/*.o \
-    libavformat/*.o \
-    libavutil/*.o \
-    libswresample/*.o \
-    libswscale/*.o \
-    $FF_ASM_OBJ_DIR \
+    $FF_C_OBJ_FILES \
+    $FF_ASM_OBJ_FILES \
     $FF_DEP_LIBS \
     -o $FF_PREFIX/libijkffmpeg.so