lib*/version: Move library version functions into files of their own

This avoids having to rebuild big files every time FFMPEG_VERSION
changes (which it does with every commit).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

Makefile

@@ -19,6 +19,8 @@ vpath %/fate_config.sh.template $(SRC_PATH)
 TESTTOOLS   = audiogen videogen rotozoom tiny_psnr tiny_ssim base64 audiomatch
 HOSTPROGS  := $(TESTTOOLS:%=tests/%) doc/print_options
 
+ALLFFLIBS = avcodec avdevice avfilter avformat avutil postproc swscale swresample
+
 # $(FFLIBS-yes) needs to be in linking order
 FFLIBS-$(CONFIG_AVDEVICE)   += avdevice
 FFLIBS-$(CONFIG_AVFILTER)   += avfilter
@@ -113,7 +115,7 @@ include $(SRC_PATH)/fftools/Makefile
 include $(SRC_PATH)/doc/Makefile
 include $(SRC_PATH)/doc/examples/Makefile
 
-libavcodec/avcodec.o libavformat/utils.o libavdevice/avdevice.o libavfilter/avfilter.o libavutil/utils.o libpostproc/postprocess.o libswresample/swresample.o libswscale/utils.o : libavutil/ffversion.h
+$(ALLFFLIBS:%=lib%/version.o): libavutil/ffversion.h
 
 $(PROGS): %$(PROGSSUF)$(EXESUF): %$(PROGSSUF)_g$(EXESUF)
 ifeq ($(STRIPTYPE),direct)

ffbuild/common.mak

@@ -29,8 +29,6 @@ $(foreach VAR,$(SILENT),$(eval override $(VAR) = @$($(VAR))))
 $(eval INSTALL = @$(call ECHO,INSTALL,$$(^:$(SRC_DIR)/%=%)); $(INSTALL))
 endif
 
-ALLFFLIBS = avcodec avdevice avfilter avformat avutil postproc swscale swresample
-
 # NASM requires -I path terminated with /
 IFLAGS     := -I. -I$(SRC_LINK)/
 CPPFLAGS   := $(IFLAGS) $(CPPFLAGS)

libavcodec/Makefile

@@ -56,6 +56,7 @@ OBJS = ac3_parser.o                                                     \
        qsv_api.o                                                        \
        raw.o                                                            \
        utils.o                                                          \
+       version.o                                                        \
        vlc.o                                                            \
        vorbis_parser.o                                                  \
        xiph.o                                                           \

libavcodec/avcodec.c

@@ -40,31 +40,6 @@
 #include "frame_thread_encoder.h"
 #include "internal.h"
 #include "thread.h"
-#include "version.h"
-
-#include "libavutil/ffversion.h"
-const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
-
-unsigned avcodec_version(void)
-{
-    av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
-    av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
-    av_assert0(AV_CODEC_ID_SRT==94216);
-    av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
-
-    return LIBAVCODEC_VERSION_INT;
-}
-
-const char *avcodec_configuration(void)
-{
-    return FFMPEG_CONFIGURATION;
-}
-
-const char *avcodec_license(void)
-{
-#define LICENSE_PREFIX "libavcodec license: "
-    return &LICENSE_PREFIX FFMPEG_LICENSE[sizeof(LICENSE_PREFIX) - 1];
-}
 
 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
 {

libavcodec/version.c

@@ -0,0 +1,50 @@
+/*
+ * Version functions.
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "libavutil/avassert.h"
+#include "avcodec.h"
+#include "codec_id.h"
+#include "version.h"
+
+#include "libavutil/ffversion.h"
+const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
+
+unsigned avcodec_version(void)
+{
+    av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
+    av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
+    av_assert0(AV_CODEC_ID_SRT==94216);
+    av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
+
+    return LIBAVCODEC_VERSION_INT;
+}
+
+const char *avcodec_configuration(void)
+{
+    return FFMPEG_CONFIGURATION;
+}
+
+const char *avcodec_license(void)
+{
+#define LICENSE_PREFIX "libavcodec license: "
+    return &LICENSE_PREFIX FFMPEG_LICENSE[sizeof(LICENSE_PREFIX) - 1];
+}

libavdevice/Makefile

@@ -8,6 +8,7 @@ HEADERS = avdevice.h                                                    \
 OBJS    = alldevices.o                                                  \
           avdevice.o                                                    \
           utils.o                                                       \
+          version.o                                                     \
 
 OBJS-$(HAVE_LIBC_MSVCRT)                 += file_open.o
 

libavdevice/avdevice.c

@@ -17,15 +17,8 @@
  */
 
 #include "libavutil/avassert.h"
-#include "libavutil/samplefmt.h"
-#include "libavutil/pixfmt.h"
 #include "avdevice.h"
 #include "internal.h"
-#include "config.h"
-#include "version.h"
-
-#include "libavutil/ffversion.h"
-const char av_device_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
 
 #if FF_API_DEVICE_CAPABILITIES
 const AVOption av_device_capabilities[] = {
@@ -33,23 +26,6 @@ const AVOption av_device_capabilities[] = {
 };
 #endif
 
-unsigned avdevice_version(void)
-{
-    av_assert0(LIBAVDEVICE_VERSION_MICRO >= 100);
-    return LIBAVDEVICE_VERSION_INT;
-}
-
-const char * avdevice_configuration(void)
-{
-    return FFMPEG_CONFIGURATION;
-}
-
-const char * avdevice_license(void)
-{
-#define LICENSE_PREFIX "libavdevice license: "
-    return &LICENSE_PREFIX FFMPEG_LICENSE[sizeof(LICENSE_PREFIX) - 1];
-}
-
 int avdevice_app_to_dev_control_message(struct AVFormatContext *s, enum AVAppToDevMessageType type,
                                         void *data, size_t data_size)
 {

libavdevice/version.c

@@ -0,0 +1,45 @@
+/*
+ * Version functions.
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "libavutil/avassert.h"
+#include "avdevice.h"
+#include "version.h"
+
+#include "libavutil/ffversion.h"
+const char av_device_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
+
+unsigned avdevice_version(void)
+{
+    av_assert0(LIBAVDEVICE_VERSION_MICRO >= 100);
+    return LIBAVDEVICE_VERSION_INT;
+}
+
+const char * avdevice_configuration(void)
+{
+    return FFMPEG_CONFIGURATION;
+}
+
+const char * avdevice_license(void)
+{
+#define LICENSE_PREFIX "libavdevice license: "
+    return &LICENSE_PREFIX FFMPEG_LICENSE[sizeof(LICENSE_PREFIX) - 1];
+}

libavfilter/Makefile

@@ -20,6 +20,7 @@ OBJS = allfilters.o                                                     \
        framequeue.o                                                     \
        graphdump.o                                                      \
        graphparser.o                                                    \
+       version.o                                                        \
        video.o                                                          \
 
 OBJS-$(HAVE_THREADS)                         += pthread.o

libavfilter/avfilter.c

@@ -29,10 +29,8 @@
 #include "libavutil/hwcontext.h"
 #include "libavutil/internal.h"
 #include "libavutil/opt.h"
-#include "libavutil/pixdesc.h"
 #include "libavutil/rational.h"
 #include "libavutil/samplefmt.h"
-#include "libavutil/thread.h"
 
 #define FF_INTERNAL_FIELDS 1
 #include "framequeue.h"
@@ -43,10 +41,6 @@
 #include "formats.h"
 #include "framepool.h"
 #include "internal.h"
-#include "version.h"
-
-#include "libavutil/ffversion.h"
-const char av_filter_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
 
 static void tlog_ref(void *ctx, AVFrame *ref, int end)
 {
@@ -75,23 +69,6 @@ static void tlog_ref(void *ctx, AVFrame *ref, int end)
     ff_tlog(ctx, "]%s", end ? "\n" : "");
 }
 
-unsigned avfilter_version(void)
-{
-    av_assert0(LIBAVFILTER_VERSION_MICRO >= 100);
-    return LIBAVFILTER_VERSION_INT;
-}
-
-const char *avfilter_configuration(void)
-{
-    return FFMPEG_CONFIGURATION;
-}
-
-const char *avfilter_license(void)
-{
-#define LICENSE_PREFIX "libavfilter license: "
-    return &LICENSE_PREFIX FFMPEG_LICENSE[sizeof(LICENSE_PREFIX) - 1];
-}
-
 void ff_command_queue_pop(AVFilterContext *filter)
 {
     AVFilterCommand *c= filter->command_queue;