[MPlayer-dev-eng] [PATCH 2/2] av_helpers: show libav* version and configuration.

[Nicolas George]

---


With this patch, mplayer will print something like this when opening the
files and codecs:

Playing <censored>
Init libavformat version 53.27.0 (dynamic)
libavformat file format detected.

Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Init libavcodec version 53.46.2 (dynamic version 53.46.1)
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)

With configure now pulling ffmpeg separately and distributions shipping
dynamically linked binaries, this will help recognize old and/or bogus
versions in bug reports.

Regards,

-- 
  Nicolas George



 av_helpers.c |   27 +++++++++++++++++++++++++++
 1 files changed, 27 insertions(+), 0 deletions(-)

diff --git a/av_helpers.c b/av_helpers.c
index 11bed7c..37ec00d 100644
--- a/av_helpers.c
+++ b/av_helpers.c
@@ -76,9 +76,34 @@ static void mp_msp_av_log_callback(void *ptr, int level, const char *fmt,
     mp_msg_va(type, mp_level, fmt, vl);
 }
 
+static void show_av_version(int type, const char *name,
+                            int st, int dl, const char *conf)
+{
+    char buf[128];
+    int l = 0;
+
+    snprintf(buf + l, sizeof(buf) - l, "Init %s version %d.%d.%d", name,
+             st >> 16, (st >> 8) & 0xFF, st & 0xFF);
+#ifdef CONFIG_FFMPEG_SO
+    l += strlen(buf + l);
+    snprintf(buf + l, sizeof(buf) - l, " (dynamic");
+    if (dl != st) {
+        l += strlen(buf + l);
+        snprintf(buf + l, sizeof(buf) - l, " version %d.%d.%d",
+                 dl >> 16, (dl >> 8) & 0xFF, dl & 0xFF);
+    }
+    l += strlen(buf + l);
+    snprintf(buf + l, sizeof(buf) - l, ")");
+#endif
+    mp_msg(type, MSGL_INFO, "%s\n", buf);
+    mp_msg(type, MSGL_V, "Configuration: %s\n", conf);
+}
+
 void init_avcodec(void)
 {
     if (!avcodec_initialized) {
+        show_av_version(MSGT_DECVIDEO, "libavcodec", LIBAVCODEC_VERSION_INT,
+                        avcodec_version(), avcodec_configuration());
         avcodec_register_all();
         avcodec_initialized = 1;
         av_log_set_callback(mp_msp_av_log_callback);
@@ -88,6 +113,8 @@ void init_avcodec(void)
 void init_avformat(void)
 {
     if (!avformat_initialized) {
+        show_av_version(MSGT_DEMUX, "libavformat", LIBAVFORMAT_VERSION_INT,
+                        avformat_version(), avformat_configuration());
         av_register_all();
         avformat_initialized = 1;
         av_log_set_callback(mp_msp_av_log_callback);
-- 
1.7.7.3