core: player: add tests

Test main player functions, but also decoder.c/es_out.c/input.c as a
consequence.

This test improves the test coverage of src/input by 20% (decoder.c coverage
goes from 0 to 60%).

test/Makefile.am

@@ -27,6 +27,7 @@ check_PROGRAMS = \
 	test_src_input_stream \
 	test_src_input_stream_fifo \
 	test_src_input_thumbnail \
+	test_src_input_player \
 	test_src_interface_dialog \
 	test_src_misc_bits \
 	test_src_misc_epg \
@@ -113,6 +114,8 @@ test_src_crypto_update_SOURCES = src/crypto/update.c
 test_src_crypto_update_LDADD = $(LIBVLCCORE) $(GCRYPT_LIBS)
 test_src_input_stream_SOURCES = src/input/stream.c
 test_src_input_stream_LDADD = $(LIBVLCCORE) $(LIBVLC)
+test_src_input_player_SOURCES = src/input/player.c
+test_src_input_player_LDADD = $(LIBVLCCORE) $(LIBVLC) $(LIBM)
 test_src_input_stream_net_SOURCES = src/input/stream.c
 test_src_input_stream_net_CFLAGS = $(AM_CFLAGS) -DTEST_NET
 test_src_input_stream_net_LDADD = $(LIBVLCCORE) $(LIBVLC)