fftools/ffmpeg_demux: add an AVClass to Demuxer/InputFile

Use it for logging. This makes log messages related to this input file
more consistent.

1 files changed, 2 insertions, 0 deletions

diff --git a/fftools/ffmpeg.h b/fftools/ffmpeg.h
index f1412f6446..c657f55911 100644
--- a/fftools/ffmpeg.h
+++ b/fftools/ffmpeg.h
@@ -448,6 +448,8 @@ typedef struct LastFrameDuration {
 } LastFrameDuration;
 
 typedef struct InputFile {
+    const AVClass *class;
+
     int index;
 
     AVFormatContext *ctx;