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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 <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2015-07-15 03:44:00 +02:00
parent 901922e047
commit 90dd6ad22c
1 changed files with 7 additions and 0 deletions
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7
libavformat/utils.c
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@ -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;