demux_lavf: disable various other special behavior if hacks disabled

This affects in particular the heuristic that enables byte seeks in some
cases with .ts input. --demuxer-lavf-hacks=no should disable this
behavior now.

1 files changed, 2 insertions, 1 deletions

diff --git a/demux/demux_lavf.c b/demux/demux_lavf.c
index f853a775ff..4328c9d782 100644
--- a/demux/demux_lavf.c
+++ b/demux/demux_lavf.c
@@ -477,7 +477,8 @@ static int lavf_check_file(demuxer_t *demuxer, enum demux_check check)
         priv->format_hack.image_format = true;
     }
 
-    priv->avif_flags = priv->avif->flags | priv->format_hack.if_flags;
+    if (lavfdopts->hacks)
+        priv->avif_flags = priv->avif->flags | priv->format_hack.if_flags;
 
     demuxer->filetype = priv->avif->name;