Bug 1295886 - P10. Add a FLAC only option to ffvpx. r=gerald

Remove the VP8 and VP9 decoder and the subsequently unused functions.

This drops the size to libmozavcodec to around 1MB down from 4MB.

MozReview-Commit-ID: Ge57fauG35L

--HG--
extra : rebase_source : 3f667d7bf89036e9b059727d846af2504ce488b3

media/ffvpx/libavcodec/moz.build

@@ -12,11 +12,7 @@ if CONFIG['FFVPX_ASFLAGS']:
 SharedLibrary('mozavcodec')
 SOURCES += [
     'allcodecs.c',
-    'audioconvert.c',
     'avpacket.c',
-    'avpicture.c',
-    'bitstream.c',
-    'bitstream_filter.c',
     'bitstream_filters.c',
     'bsf.c',
     'codec_desc.c',
@@ -26,11 +22,6 @@ SOURCES += [
     'flacdata.c',
     'flacdec.c',
     'flacdsp.c',
-    'golomb.c',
-    'h264pred.c',
-    'imgconvert.c',
-    'log2_tab.c',
-    'mathtables.c',
     'null_bsf.c',
     'options.c',
     'parser.c',
@@ -38,14 +29,28 @@ SOURCES += [
     'pthread.c',
     'pthread_frame.c',
     'pthread_slice.c',
+    'utils.c',
+    'vorbis_parser.c',
+    'xiph.c'
+]
+
+if not CONFIG['MOZ_FFVPX_FLACONLY']:
+    SOURCES += [
+        'audioconvert.c',
+        'avpicture.c',
+        'bitstream.c',
+        'bitstream_filter.c',
+        'golomb.c',
+        'h264pred.c',
+        'imgconvert.c',
+        'log2_tab.c',
+        'mathtables.c',
         'qsv_api.c',
         'raw.c',
         'resample.c',
         'resample2.c',
         'reverse.c',
-    'utils.c',
         'videodsp.c',
-    'vorbis_parser.c',
         'vp56rac.c',
         'vp8.c',
         'vp8_parser.c',
@@ -61,8 +66,7 @@ SOURCES += [
         'vp9lpf.c',
         'vp9mvs.c',
         'vp9prob.c',
-	'vp9recon.c',
-    'xiph.c'
+        'vp9recon.c'
     ]
 
 SYMBOLS_FILE = 'avcodec.symbols'

media/ffvpx/libavutil/moz.build

@@ -11,14 +11,11 @@ if CONFIG['FFVPX_ASFLAGS']:
 
 SharedLibrary('mozavutil')
 SOURCES += [
-    'adler32.c',
     'atomic.c',
     'avstring.c',
-    'base64.c',
     'bprint.c',
     'buffer.c',
     'channel_layout.c',
-    'color_utils.c',
     'cpu.c',
     'crc.c',
     'dict.c',
@@ -30,25 +27,31 @@ SOURCES += [
     'float_dsp.c',
     'frame.c',
     'imgutils.c',
-    'integer.c',
-    'intmath.c',
-    'lls.c',
     'log.c',
-    'log2_tab.c',
     'mathematics.c',
     'mem.c',
     'opt.c',
     'parseutils.c',
     'pixdesc.c',
-    'pixelutils.c',
     'rational.c',
     'reverse.c',
     'samplefmt.c',
     'slicethread.c',
-    'threadmessage.c',
     'time.c',
-    'timecode.c',
-    'utils.c',
+    'utils.c'
+]
+
+if not CONFIG['MOZ_FFVPX_FLACONLY']:
+    SOURCES += [
+        'adler32.c',
+        'base64.c',
+        'color_utils.c',
+        'integer.c',
+        'intmath.c',
+        'lls.c',
+        'pixelutils.c',
+        'threadmessage.c',
+        'timecode.c'
     ]
 
 SYMBOLS_FILE =  'avutil.symbols'

old-configure.in

@@ -3214,6 +3214,7 @@ dnl = FFmpeg's ffvpx configuration
 dnl ========================================================
 
 MOZ_FFVPX=
+MOZ_FFVPX_FLACONLY=
 case "$CPU_ARCH" in
   x86)
       MOZ_FFVPX=1
@@ -3223,6 +3224,7 @@ case "$CPU_ARCH" in
   ;;
   arm*)
       MOZ_FFVPX=1
+      MOZ_FFVPX_FLACONLY=1
   ;;
 esac
 
@@ -3233,6 +3235,9 @@ fi
 if test -n "$MOZ_FFVPX"; then
   AC_DEFINE(MOZ_FFVPX)
 fi
+if test -n "$MOZ_FFVPX_FLACONLY"; then
+  AC_DEFINE(MOZ_FFVPX_FLACONLY)
+fi
 
 dnl ========================================================
 dnl = Enable compilation of specific extension modules
@@ -4808,6 +4813,7 @@ AC_SUBST(WIN32_GUI_EXE_LDFLAGS)
 AC_SUBST(MOZ_VORBIS)
 AC_SUBST(MOZ_TREMOR)
 AC_SUBST(MOZ_FFVPX)
+AC_SUBST(MOZ_FFVPX_FLACONLY)
 AC_SUBST_LIST(FFVPX_ASFLAGS)
 AC_SUBST(VPX_USE_YASM)
 AC_SUBST_LIST(VPX_ASFLAGS)