From 0200a71e2f40b26cbd9bd956089857205e72c6e5 Mon Sep 17 00:00:00 2001
From: wm4 <wm4@nowhere>
Date: Fri, 2 Mar 2018 19:07:12 +0100
Subject: demux_lavf: add some hacks for SDP

Just the usual guess-what-opaque-ffmpeg-thing-supports.

See #5550. It looks like we can reduce packet drop by having the cache
enabled automatically.
---
 demux/demux_lavf.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'demux/demux_lavf.c')

diff --git a/demux/demux_lavf.c b/demux/demux_lavf.c
index 4e1e3067ea..27c5f5087f 100644
--- a/demux/demux_lavf.c
+++ b/demux/demux_lavf.c
@@ -136,6 +136,8 @@ struct format_hack {
     bool clear_filepos : 1;
     bool ignore_start : 1;
     bool fix_editlists : 1;
+    bool is_network : 1;
+    bool no_seek : 1;
 };
 
 #define BLACKLIST(fmt) {fmt, .ignore = true}
@@ -153,6 +155,7 @@ static const struct format_hack format_hacks[] = {
 
     {"hls", .no_stream = true, .clear_filepos = true},
     {"dash", .no_stream = true, .clear_filepos = true},
+    {"sdp", .clear_filepos = true, .is_network = true, .no_seek = true},
     {"mpeg", .use_stream_ids = true},
     {"mpegts", .use_stream_ids = true},
 
@@ -935,6 +938,9 @@ static int demux_open_lavf(demuxer_t *demuxer, enum demux_check check)
         demuxer->seekable = false;
 #endif
 
+    demuxer->is_network |= priv->format_hack.is_network;
+    demuxer->seekable &= !priv->format_hack.no_seek;
+
     if (priv->avfc->duration > 0) {
         demuxer->duration = (double)priv->avfc->duration / AV_TIME_BASE;
     } else {
-- 
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