Help needed for installation

[Sudarshini Tyagi]

I cloned Echoprint from Github. I installed boost (latest version), zlib, taglib. However, I get

Reading package lists... Done
Building dependency tree      
Reading state information... Done
Package ffmpeg is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'ffmpeg' has no installation candidate

error when I try to run

sudo apt-get install ffmpeg libboost1.42-dev libtag1-dev zlib1g-dev

And when I try to run "make" it shows:

g++ -shared -fPIC -Wl,-soname,libcodegen.so.4 -o libcodegen.so.4.1.2 AudioBufferInput.o AudioStreamInput.o Base64.o Codegen.o Fingerprint.o MatrixUtility.o SubbandAnalysis.o Whitening.o -lz
g++ -Wall -I/usr/local/include/boost-1_35 `taglib-config --cflags` -fPIC -O3 -DBOOST_UBLAS_NDEBUG -DNDEBUG -c -o Metadata.o Metadata.cxx
/bin/sh: 1: taglib-config: not found
Metadata.cxx:8:21: fatal error: fileref.h: No such file or directory
 #include <fileref.h>
                     ^
compilation terminated.
make: *** [Metadata.o] Error 1 

Could anyone explain this?

Regards
Sudarshini Tyagi