Restore ffmpeg-new-coder-errors.diff

OBS-URL: https://build.opensuse.org/package/show/multimedia:libs/ffmpeg-6?expand=0&rev=23

ffmpeg-new-coder-errors.diff

@@ -0,0 +1,23 @@
+From: Jan Engelhardt <jengelh@inai.de>
+Date: 2016-04-10 23:23:53.138440254 +0200
+
+Improve the error messages a bit to say what's really going on
+(in light of openSUSE's reduced build).
+
+---
+ fftools/ffmpeg_dec.c |    2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+Index: ffmpeg-6.1.1/fftools/ffmpeg_dec.c
+===================================================================
+--- ffmpeg-6.1.1.orig/fftools/ffmpeg_dec.c
++++ ffmpeg-6.1.1/fftools/ffmpeg_dec.c
+@@ -1075,7 +1075,7 @@ int dec_open(InputStream *ist)
+ 
+     if (!codec) {
+         av_log(ist, AV_LOG_ERROR,
+-               "Decoding requested, but no decoder found for: %s\n",
++               "Decoding was requested, but this build of ffmpeg does not include a \"%s\" decoder\n",
+                 avcodec_get_name(ist->dec_ctx->codec_id));
+         return AVERROR(EINVAL);
+     }