Parse codec options in order of occurrence.

Each time a codec is enabled or disabled with the umbrella
--enable-vpN flag, set the encoder and decoder configurations as well.
This was done as a post-processing step but doing that lost the order of
the arguments.

BUG=webm:1205

Change-Id: Ic629bfdd06acc04bc5a7227309f36bba54dad8b1

build/make/configure.sh

@@ -185,6 +185,25 @@ add_extralibs() {
 #
 # Boolean Manipulation Functions
 #
+
+enable_codec(){
+  enabled $1 || echo "  enabling $1"
+  set_all yes $1
+
+  is_in $1 vp8 vp9 vp10 && \
+    set_all yes $1_encoder && \
+    set_all yes $1_decoder
+}
+
+disable_codec(){
+  disabled $1 || echo "  disabling $1"
+  set_all no $1
+
+  is_in $1 vp8 vp9 vp10 && \
+    set_all no $1_encoder && \
+    set_all no $1_decoder
+}
+
 enable_feature(){
   set_all yes $*
 }

configure

@@ -195,12 +195,12 @@ if [ ${doxy_major:-0} -ge 1 ]; then
 fi
 
 # disable codecs when their source directory does not exist
-[ -d "${source_path}/vp8" ] || disable_feature vp8
-[ -d "${source_path}/vp9" ] || disable_feature vp9
-[ -d "${source_path}/vp10" ] || disable_feature vp10
+[ -d "${source_path}/vp8" ] || disable_codec vp8
+[ -d "${source_path}/vp9" ] || disable_codec vp9
+[ -d "${source_path}/vp10" ] || disable_codec vp10
 
 # disable vp10 codec by default
-disable_feature vp10
+disable_codec vp10
 
 # install everything except the sources, by default. sources will have
 # to be enabled when doing dist builds, since that's no longer a common
@@ -391,7 +391,9 @@ process_cmdline() {
     for opt do
         optval="${opt#*=}"
         case "$opt" in
-        --disable-codecs) for c in ${CODECS}; do disable_feature $c; done ;;
+        --disable-codecs)
+          for c in ${CODEC_FAMILIES}; do disable_codec $c; done
+          ;;
         --enable-?*|--disable-?*)
         eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
         if echo "${EXPERIMENT_LIST}" | grep "^ *$option\$" >/dev/null; then
@@ -400,6 +402,8 @@ process_cmdline() {
             else
                 log_echo "Ignoring $opt -- not in experimental mode."
             fi
+        elif is_in ${option} "${CODECS} ${CODEC_FAMILIES}"; then
+            ${action}_codec ${option}
         else
             process_common_cmdline $opt
         fi
@@ -413,14 +417,6 @@ process_cmdline() {
 post_process_cmdline() {
     c=""
 
-    # If the codec family is disabled, disable all components of that family.
-    # If the codec family is enabled, enable all components of that family.
-    log_echo "Configuring selected codecs"
-    for c in ${CODECS}; do
-        disabled ${c%%_*} && disable_feature ${c}
-        enabled ${c%%_*} && enable_feature ${c}
-    done
-
     # Enable all detected codecs, if they haven't been disabled
     for c in ${CODECS}; do soft_enable $c; done