In file included from /usr/include/SDL2/SDL.h:38:0,
                 from libavdevice/sdl2.c:26:
/usr/include/SDL2/SDL_cpuinfo.h:63:5: warning: 'HAVE_IMMINTRIN_H' is not defined, evaluates to 0 [-Wundef]
 #if HAVE_IMMINTRIN_H && !defined(SDL_DISABLE_IMMINTRIN_H)
     ^~~~~~~~~~~~~~~~
libavformat/dashenc.c: In function 'flush_init_segment':
libavformat/dashenc.c:597:49: warning: '%s' directive output may be truncated writing up to 1023 bytes into a region of size between 1 and 1024 [-Wformat-truncation=]
         snprintf(filename, sizeof(filename), '%s%s', c->dirname, os->initfile);
                                                 ^~
In file included from /usr/include/stdio.h:862:0,
                 from ./libavutil/common.h:38,
                 from ./libavutil/avutil.h:296,
                 from libavformat/dashenc.c:30:
/usr/include/arm-linux-gnueabihf/bits/stdio2.h:64:10: note: '__builtin___snprintf_chk' output between 1 and 2047 bytes into a destination of size 1024
   return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        __bos (__s), __fmt, __va_arg_pack ());
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libavformat/dashenc.c: In function 'dash_init':
libavformat/dashenc.c:1583:49: warning: '%s' directive output may be truncated writing up to 1023 bytes into a region of size between 1 and 1024 [-Wformat-truncation=]
         snprintf(filename, sizeof(filename), '%s%s', c->dirname, os->initfile);
                                                 ^~
In file included from /usr/include/stdio.h:862:0,
                 from ./libavutil/common.h:38,
                 from ./libavutil/avutil.h:296,
                 from libavformat/dashenc.c:30:
/usr/include/arm-linux-gnueabihf/bits/stdio2.h:64:10: note: '__builtin___snprintf_chk' output between 1 and 2047 bytes into a destination of size 1024
   return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        __bos (__s), __fmt, __va_arg_pack ());
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libavformat/dashenc.c: In function 'write_hls_media_playlist':
libavformat/dashenc.c:491:49: warning: 'media_' directive output may be truncated writing 6 bytes into a region of size between 1 and 1024 [-Wformat-truncation=]
         snprintf(playlist_name, string_size, '%smedia_%d.m3u8', base_url, id);
                                                 ^~~~~~
In file included from /usr/include/stdio.h:862:0,
                 from ./libavutil/common.h:38,
                 from ./libavutil/avutil.h:296,
                 from libavformat/dashenc.c:30:
/usr/include/arm-linux-gnueabihf/bits/stdio2.h:64:10: note: '__builtin___snprintf_chk' output between 13 and 1046 bytes into a destination of size 1024
   return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        __bos (__s), __fmt, __va_arg_pack ());
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libavformat/dashenc.c: In function 'dash_flush':
libavformat/dashenc.c:1959:63: warning: '%s' directive output may be truncated writing up to 1023 bytes into a region of size between 1 and 1024 [-Wformat-truncation=]
             snprintf(os->full_path, sizeof(os->full_path), '%s%s', c->dirname, os->initfile);
                                                               ^~
In file included from /usr/include/stdio.h:862:0,
                 from ./libavutil/common.h:38,
                 from ./libavutil/avutil.h:296,
                 from libavformat/dashenc.c:30:
/usr/include/arm-linux-gnueabihf/bits/stdio2.h:64:10: note: '__builtin___snprintf_chk' output between 1 and 2047 bytes into a destination of size 1024
   return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        __bos (__s), __fmt, __va_arg_pack ());
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libavformat/dashenc.c: In function 'dash_write_trailer':
libavformat/dashenc.c:491:49: warning: 'media_' directive output may be truncated writing 6 bytes into a region of size between 1 and 1024 [-Wformat-truncation=]
         snprintf(playlist_name, string_size, '%smedia_%d.m3u8', base_url, id);
                                                 ^~~~~~
libavformat/dashenc.c:491:46: note: directive argument in the range [0, 2147483647]
         snprintf(playlist_name, string_size, '%smedia_%d.m3u8', base_url, id);
                                              ^~~~~~~~~~~~~~~~~
In file included from /usr/include/stdio.h:862:0,
                 from ./libavutil/common.h:38,
                 from ./libavutil/avutil.h:296,
                 from libavformat/dashenc.c:30:
/usr/include/arm-linux-gnueabihf/bits/stdio2.h:64:10: note: '__builtin___snprintf_chk' output between 13 and 1045 bytes into a destination of size 1024
   return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        __bos (__s), __fmt, __va_arg_pack ());
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libavformat/dashenc.c: In function 'dash_write_packet':
libavformat/dashenc.c:2256:59: warning: '%s' directive output may be truncated writing up to 1023 bytes into a region of size between 1 and 1024 [-Wformat-truncation=]
         snprintf(os->full_path, sizeof(os->full_path), '%s%s', c->dirname,
                                                           ^~
In file included from /usr/include/stdio.h:862:0,
                 from ./libavutil/common.h:38,
                 from ./libavutil/avutil.h:296,
                 from libavformat/dashenc.c:30:
/usr/include/arm-linux-gnueabihf/bits/stdio2.h:64:10: note: '__builtin___snprintf_chk' output between 1 and 2047 bytes into a destination of size 1024
   return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        __bos (__s), __fmt, __va_arg_pack ());
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libavformat/mlvdec.c: In function 'read_header':
libavformat/mlvdec.c:362:63: warning: '__builtin___snprintf_chk' output may be truncated before the last format character [-Wformat-truncation=]
             snprintf(filename + strlen(filename) - 2, 3, '%02d', i);
                                                               ^
In file included from /usr/include/stdio.h:862:0,
                 from libavformat/avformat.h:311,
                 from libavformat/mlvdec.c:31:
/usr/include/arm-linux-gnueabihf/bits/stdio2.h:64:10: note: '__builtin___snprintf_chk' output between 3 and 4 bytes into a destination of size 3
   return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        __bos (__s), __fmt, __va_arg_pack ());
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libavformat/matroskaenc.c: In function 'mkv_write_trailer':
libavformat/matroskaenc.c:3013:58: warning: '%012.9f' directive output may be truncated writing between 12 and 320 bytes into a region of size between 8 and 14 [-Wformat-truncation=]
                 snprintf(duration_string, 20, '%02d:%02d:%012.9f',
                                                          ^~~~~~~
In file included from /usr/include/stdio.h:862:0,
                 from libavformat/avio.h:30,
                 from libavformat/av1.h:26,
                 from libavformat/matroskaenc.c:27:
/usr/include/arm-linux-gnueabihf/bits/stdio2.h:64:10: note: '__builtin___snprintf_chk' output between 19 and 333 bytes into a destination of size 20
   return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        __bos (__s), __fmt, __va_arg_pack ());
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libavformat/mpegts.c: In function 'eit_cb':
libavformat/mpegts.c:2673:11: error: 'SectionHeader {aka struct SectionHeader}' has no member named 'current_next'
     if (!h->current_next)
           ^~
libavformat/mpegts.c:2621:10: warning: variable 'language' set but not used [-Wunused-but-set-variable]
     char language[252];
          ^~~~~~~~
make: *** [libavformat/mpegts.o] Error 1
make: *** Waiting for unfinished jobs....
libavformat/movenc.c: In function 'mov_flush_fragment':
libavformat/movenc.c:1107:8: warning: assuming signed overflow does not occur when assuming that (X - c) > X is always false [-Wstrict-overflow]
     if (cluster_idx >= track->entry)
        ^