From 90dd6ad22cee78ef8d8de27e30839f99e69a7909 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Wed, 15 Jul 2015 03:44:00 +0200 Subject: [PATCH] avformat/utils: inform the user if the protocol cannot be determined Assuming the wrong protocol can lead to suboptimal seeking performance Signed-off-by: Michael Niedermayer --- libavformat/utils.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/libavformat/utils.c b/libavformat/utils.c index 16901786a9..bcd3c52a46 100644 --- a/libavformat/utils.c +++ b/libavformat/utils.c @@ -1789,6 +1789,13 @@ void ff_configure_buffers_for_index(AVFormatContext *s, int64_t time_tolerance) //We could use URLProtocol flags here but as many user applications do not use URLProtocols this would be unreliable const char *proto = avio_find_protocol_name(s->filename); + if (!proto) { + av_log(s, AV_LOG_INFO, + "Protocol name not provided, cannot determine if input is local or " + "a network protocol, buffers and access patterns cannot be configured " + "optimally without knowing the protocol\n"); + } + if (proto && !(strcmp(proto, "file") && strcmp(proto, "pipe") && strcmp(proto, "cache"))) return;