Add HEVC codec support for HTSP (TV) streams

[scotty007]

Pretty simple else if addition.
HEVC is used by e.g. German HD TV via DVB-T2.

[029A-h]

DVB-T2 support would be awesome. Movian is the best client for tvheadend for me but I was unsuccessful in compilation with yout patch.
After adding

      } else if(!strcmp(type, "HEVC")) {
	codec_id = AV_CODEC_ID_HEVC;
	media_type = MEDIA_TYPE_VIDEO;
	nicename = "HEVC";

I got this make error

/home/william/builds/movian/ext/rtmpdump/librtmp/hashswf.c:252:12: error: field ‘ctx’ has incomplete type
   HMAC_CTX ctx;
            ^~~
/home/william/builds/movian/ext/rtmpdump/librtmp/hashswf.c: In function ‘RTMP_HashSWF’:
/home/william/builds/movian/ext/rtmpdump/librtmp/hashswf.c:62:35: warning: implicit declaration of function ‘HMAC_CTX_init’; did you mean ‘HMAC_CTX_new’? [-Wimplicit-function-declaration]
 #define HMAC_setup(ctx, key, len) HMAC_CTX_init(&ctx); HMAC_Init_ex(&ctx, (unsigned char *)key, len, EVP_sha256(), 0)
                                   ^~~~~~~~~~~~~
/home/william/builds/movian/ext/rtmpdump/librtmp/hashswf.c:545:3: note: in expansion of macro ‘HMAC_setup’
   HMAC_setup(in.ctx, "Genuine Adobe Flash Player 001", 30);
   ^~~~~~~~~~
/home/william/builds/movian/ext/rtmpdump/librtmp/hashswf.c:65:25: warning: implicit declaration of function ‘HMAC_CTX_cleanup’; did you mean ‘HMAC_CTX_get_md’? [-Wimplicit-function-declaration]
 #define HMAC_close(ctx) HMAC_CTX_cleanup(&ctx)
                         ^~~~~~~~~~~~~~~~
/home/william/builds/movian/ext/rtmpdump/librtmp/hashswf.c:611:3: note: in expansion of macro ‘HMAC_close’
   HMAC_close(in.ctx);
   ^~~~~~~~~~
make: *** [Makefile:861: /home/william/builds/movian/build.linux/ext/rtmpdump/librtmp/hashswf.o] Error 1
make: *** Waiting for unfinished jobs....
duk_bi_date.c: In function ‘duk__format_parts_iso8601’:
duk_bi_date.c:982:39: warning: ‘%02d’ directive output may be truncated writing 2 bytes into a region of size between 0 and 4 [-Wformat-truncation=]
duk_bi_date.c:982:39: note: directive argument in the range [0, 59]
In file included from /home/william/builds/movian/ext/duktape/duktape.h:130,
                 from duk_internal.h:26:
/home/william/builds/movian/ext/duktape/duk_config.h:1983:26: note: ‘snprintf’ output between 7 and 11 bytes into a destination of size 8
 #define DUK_SNPRINTF     snprintf
duk_bi_date.c:982:4: note: in expansion of macro ‘DUK_SNPRINTF’
duk_bi_date.c:979:39: warning: ‘%02d’ directive output may be truncated writing 2 bytes into a region of size between 0 and 4 [-Wformat-truncation=]
duk_bi_date.c:979:39: note: directive argument in the range [0, 59]
In file included from /home/william/builds/movian/ext/duktape/duktape.h:130,
                 from duk_internal.h:26:
/home/william/builds/movian/ext/duktape/duk_config.h:1983:26: note: ‘snprintf’ output between 7 and 11 bytes into a destination of size 8
 #define DUK_SNPRINTF     snprintf
duk_bi_date.c:979:4: note: in expansion of macro ‘DUK_SNPRINTF’

How can I interpret the failure?
[compiled on Debian Buster]

[scotty007]

@willi-smith: I don't think the failed build is caused by this patch. It happens while building an external library (librtmp) and it fails for the current master as well. I excluded librtmp via ./configure --disable-librtmp.

[nkichukov]

Thanks a lot, it works here too.