This patch adds "make local" target in examples/Makefile. Using this
target examples will be build using biTStream in their parent directory
(not the system wide install). This target simplifies biTSream development
and testing.

The fixed warnings are:
  bitstream/dvb/sim.h: In function "tlv_find_data":
  bitstream/dvb/sim.h:216:5: warning: return discards qualifiers from pointer target type

  bitstream/dvb/sim.h: In function "ecmg_validate":
  bitstream/dvb/sim.h:389:5: warning: excess elements in scalar initializer
  bitstream/dvb/sim.h:389:5: warning: (near initialization for "p_param")
  bitstream/dvb/sim.h:389:5: warning: excess elements in scalar initializer
  bitstream/dvb/sim.h:389:5: warning: (near initialization for "p_param")

  bitstream/dvb/si.h: In function "dvb_string_set":
  bitstream/dvb/si.h:174:9: warning: pointer targets in passing argument 1 of "strlen" differ in signedness
  /usr/include/string.h:399:15: note: expected "const char *" but argument is of type "const uint8_t *"

  bitstream/dvb/si.h:174:9: warning: pointer targets in passing argument 1 of "__strdup" differ in signedness
  /usr/include/bits/string2.h:1303:14: note: expected "const char *" but argument is of type "const uint8_t *"
  bitstream/dvb/si.h:174:9: warning: pointer targets in return differ in signedness

  bitstream/dvb/si.h: In function "dvb_string_get":
  bitstream/dvb/si.h:219:25: warning: passing argument 3 of "pf_iconv" discards qualifiers from pointer target type
  bitstream/dvb/si.h:219:25: note: expected "char *" but argument is of type "const uint8_t *"

  bitstream/dvb/si.h: In function "desc48_get_service":
  bitstream/dvb/si.h:742:5: warning: return discards qualifiers from pointer target type

Replace WTFPL with MIT license.
Acked-By: Christophe Massiot <massiot@via.ecp.fr>
Acked-By: Georgi Chorbadzhiyski <gf@unixsol.org>
Acked-By: Jean-Paul Saman <jpsaman@videolan.org>
Acked-By: Rémi Duraffort <ivoire@videolan.org>

This is to avoid the hack with the CAT table, which doesn't have a descs
"header". So there are new functions descl_* to handle descriptor lists
without length. This change is backwards compatible for all tables except
CAT.

* ietf/rtp.h: API CHANGE: Renamed RTP cc to seqnum because that's how it is actually called in the RFC, and CC is supposed to be something else. Applications have to be changed. * mpeg/ts.h: Add a missing const.

* examples/mpeg_print_pcr.c: New very basic (but useful) example program which prints the PCR PID of the first PMT.

* dvb/si.h: Add handling of service list, linkage and private data specifier descriptors, as well as EICTA's LCN and HD_SIMULCAST_LCN. * dvb/si_print.h: Store the last private data specifier and use it to call the private print functions.

* dvb/si.h: Properly escape string from XML special chars. * Makefile: Just bail out when called with no argument.

* examples/dvb_print_si.c: Fix a major bug when handling TS with a section begginning in the middle of the payload.

* mpeg/psi_print.h: Move DVB-specific functions to dvb/si_print.h. * examples/dvb_print_si.c: Fix a number of end-of-lines.

* mpeg/psi.h: Fix a segfault when the number of sections changes. * mpeg/psi.h, dvb/si.h: Add functions to validate if there is enough space for a new substructure. * dvb/si.h: Add support for DVB MJD format. * dvb/si.h: Correctly initialize a byte in SDT sub-structure. * dvb/si.h: Fully implement descriptor 0x48 (service descriptor).

* mpeg/psi.h, dvb/si.h: Add descXX_validate() functions. * mpeg/psi_print.h: Validate descriptors before accessing them. * mpeg/psi.h: Avoid duplicate copies of the CRC32 table. * ALL: Make sure we return booleans. * dvb/si.h: Add support for DVB character sets. * dvb/si.h: Add content delivery descriptors 0x43, 0x44 and 0x5a. * dvb/si.h: Add VBI teletext descriptor 0x46. * examples/dvb_print_si.c: Add support for charset conversion via iconv.

* mpeg/psi.h: Fix a bug with descriptor 0x05. * mpeg/psi.h, dvb/si.h: Cosmetic changes in print functions. * examples/dvb_print_si.c: New example file to print DVB tables in a TS stream.

* ALL: New *_print() set of functions. * ALL (tables): Check CRC only when needed; also check tables coherence. * ALL (descriptors): Add a lot of missing _get_ functions. * ALL (descriptors): Fix off-by-one overflow of structure array. * mpeg/psi.h: Fix off-by-one overflow of PAT program array.