Add FFMPEG_VERSION into the binary libs

This simplifies identifying from which revision a binary of a lib came from
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/utils.c

@@ -66,6 +66,9 @@
 #include "compat/os2threads.h"
 #endif
 
+#include "libavutil/ffversion.h"
+const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
+
 #if HAVE_PTHREADS || HAVE_W32THREADS || HAVE_OS2THREADS
 static int default_lockmgr_cb(void **arg, enum AVLockOp op)
 {

libavdevice/avdevice.c

@@ -23,6 +23,9 @@
 #include "avdevice.h"
 #include "config.h"
 
+#include "libavutil/ffversion.h"
+const char av_device_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
+
 #define E AV_OPT_FLAG_ENCODING_PARAM
 #define D AV_OPT_FLAG_DECODING_PARAM
 #define A AV_OPT_FLAG_AUDIO_PARAM

libavfilter/avfilter.c

@@ -37,6 +37,9 @@
 #include "formats.h"
 #include "internal.h"
 
+#include "libavutil/ffversion.h"
+const char av_filter_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
+
 static int ff_filter_frame_framed(AVFilterLink *link, AVFrame *frame);
 
 void ff_tlog_ref(void *ctx, AVFrame *ref, int end)

libavformat/utils.c

@@ -53,6 +53,9 @@
 #include "riff.h"
 #include "url.h"
 
+#include "libavutil/ffversion.h"
+const char av_format_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
+
 /**
  * @file
  * various utility functions for use within FFmpeg

libavutil/utils.c

@@ -27,6 +27,9 @@
  * various utility functions
  */
 
+#include "libavutil/ffversion.h"
+const char av_util_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
+
 unsigned avutil_version(void)
 {
     static int checks_done;

libpostproc/postprocess.c

@@ -89,6 +89,9 @@ try to unroll inner for(x=0 ... loop to avoid these damn if(x ... checks
 #include "postprocess_internal.h"
 #include "libavutil/avstring.h"
 
+#include "libavutil/ffversion.h"
+const char postproc_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
+
 unsigned postproc_version(void)
 {
     av_assert0(LIBPOSTPROC_VERSION_MICRO >= 100);

libswresample/swresample.c

@@ -28,6 +28,9 @@
 
 #define ALIGN 32
 
+#include "libavutil/ffversion.h"
+const char swr_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
+
 unsigned swresample_version(void)
 {
     av_assert0(LIBSWRESAMPLE_VERSION_MICRO >= 100);