demux: propagate streaming flag through demux_timeline

Before this commit, EDL or CUE files did not properly enable the cache
if they were on "slow" media (stream->streaming==true). This happened
because the stream is unset for demux_timeline, so the streaming flag
could not be queried anymore.

Fix this by adding this flag to struct demuxer, and propagate it exactly
like the is_network flag. is_network is not used for checking the cache
options anymore, and its main function seems to be something else.
Normal http streams set the streaming flag already.

This should fix #6958.

1 files changed, 4 insertions, 1 deletions

diff --git a/demux/demux_timeline.c b/demux/demux_timeline.c
index 8237a69a0f..b18ae70faa 100644
--- a/demux/demux_timeline.c
+++ b/demux/demux_timeline.c
@@ -591,8 +591,10 @@ static bool add_tl(struct demuxer *demuxer, struct timeline_par *tl)
 
         // demux_timeline already does caching, doing it for the sub-demuxers
         // would be pointless and wasteful.
-        if (part->source)
+        if (part->source) {
             demuxer->is_network |= part->source->is_network;
+            demuxer->is_streaming |= part->source->is_streaming;
+        }
 
         struct segment *seg = talloc_ptrtype(src, seg);
         *seg = (struct segment){
@@ -611,6 +613,7 @@ static bool add_tl(struct demuxer *demuxer, struct timeline_par *tl)
     }
 
     demuxer->is_network |= tl->track_layout->is_network;
+    demuxer->is_streaming |= tl->track_layout->is_streaming;
     return true;
 }