I tried to install minidlna on my machine but it appeared to me that it's not in repositories anymore. Well then I decided to compile it myself. After downloading version 1.1.3 I tried to compile but I needed libav headers which I couldn't install via apt - no idea why there has been a lot of broken packages:

$ sudo apt-get install libavcodec-dev
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 libavcodec-dev : Depends: libavutil-dev (= 6:9.13-0ubuntu0.14.04.1) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

Anyways I installed libav 9.13 from source and now I came to this point:

$ ./configure
 ...
checking for av_open_input_file in -lavformat... no
checking for avformat_open_input in -lavformat... no
checking for av_open_input_file in -lavformat... no
checking for avformat_open_input in -lavformat... no
configure: error: Could not find libavformat - part of ffmpeg

but I have installed that! Even in the install log I can see :

...
INSTALL libavdevice/libavdevice.a
INSTALL libavfilter/libavfilter.a
INSTALL libavformat/libavformat.a
INSTALL libavresample/libavresample.a
INSTALL libavcodec/libavcodec.a
INSTALL libswscale/libswscale.a
INSTALL libavutil/libavutil.a
INSTALL libavdevice/avdevice.h
INSTALL libavdevice/version.h
INSTALL libavdevice/libavdevice.pc
INSTALL libavfilter/avfilter.h
INSTALL libavfilter/avfiltergraph.h
INSTALL libavfilter/buffersink.h
INSTALL libavfilter/buffersrc.h
INSTALL libavfilter/version.h
INSTALL libavfilter/libavfilter.pc
INSTALL libavformat/avformat.h
....