./libavcodec/avdct.h:30:37: note: declared here
 typedef struct attribute_deprecated AVDCT {
                                     ^~~~~
libavfilter/vf_spp.c: In function 'child_class_iterate':
libavfilter/vf_spp.c:50:5: warning: 'avcodec_dct_get_class' is deprecated [-Wdeprecated-declarations]
     const AVClass *c = *iter ? NULL : avcodec_dct_get_class();
     ^~~~~
In file included from libavfilter/vf_spp.h:26,
                 from libavfilter/vf_spp.c:40:
./libavcodec/avdct.h:91:16: note: declared here
 const AVClass *avcodec_dct_get_class(void);
                ^~~~~~~~~~~~~~~~~~~~~
libavfilter/vf_spp.c: In function 'config_input':
libavfilter/vf_spp.c:344:5: warning: 'avcodec_dct_init' is deprecated [-Wdeprecated-declarations]
     avcodec_dct_init(s->dct);
     ^~~~~~~~~~~~~~~~
In file included from libavfilter/vf_spp.h:26,
                 from libavfilter/vf_spp.c:40:
./libavcodec/avdct.h:88:5: note: declared here
 int avcodec_dct_init(AVDCT *);
     ^~~~~~~~~~~~~~~~
libavfilter/vf_spp.c: In function 'preinit':
libavfilter/vf_spp.c:461:5: warning: 'avcodec_dct_alloc' is deprecated [-Wdeprecated-declarations]
     s->dct = avcodec_dct_alloc();
     ^
In file included from libavfilter/vf_spp.h:26,
                 from libavfilter/vf_spp.c:40:
./libavcodec/avdct.h:85:8: note: declared here
 AVDCT *avcodec_dct_alloc(void);
        ^~~~~~~~~~~~~~~~~
libavformat/dashenc.c: In function 'dash_init':
libavformat/dashenc.c:1582:65: warning: '-stream' directive output may be truncated writing 7 bytes into a region of size between 1 and 1024 [-Wformat-truncation=]
                 snprintf(os->initfile, sizeof(os->initfile), '%s-stream%d.%s', basename, i, os->format_name);
                                                                 ^~~~~~~
libavformat/dashenc.c:1582:62: note: directive argument in the range [0, 2147483647]
                 snprintf(os->initfile, sizeof(os->initfile), '%s-stream%d.%s', basename, i, os->format_name);
                                                              ^~~~~~~~~~~~~~~~
libavformat/dashenc.c:1582:17: note: 'snprintf' output 10 or more bytes (assuming 1042) into a destination of size 1024
                 snprintf(os->initfile, sizeof(os->initfile), '%s-stream%d.%s', basename, i, os->format_name);
                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libavformat/dashenc.c:1586:49: 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);
                                                 ^~
libavformat/dashenc.c:1586:9: note: 'snprintf' output between 1 and 2047 bytes into a destination of size 1024
         snprintf(filename, sizeof(filename), '%s%s', c->dirname, os->initfile);
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libavformat/dashenc.c: In function 'flush_init_segment':
libavformat/dashenc.c:600:49: 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);
                                                 ^~
libavformat/dashenc.c:600:9: note: 'snprintf' output between 1 and 2047 bytes into a destination of size 1024
         snprintf(filename, sizeof(filename), '%s%s', c->dirname, os->initfile);
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libavformat/dashenc.c: In function 'write_hls_media_playlist':
libavformat/dashenc.c:494:49: 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:494:9: note: 'snprintf' output between 13 and 1046 bytes into a destination of size 1024
         snprintf(playlist_name, string_size, '%smedia_%d.m3u8', base_url, id);
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libavformat/dashenc.c: In function 'dash_flush':
libavformat/dashenc.c:1962:63: 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);
                                                               ^~
libavformat/dashenc.c:1962:13: note: 'snprintf' output between 1 and 2047 bytes into a destination of size 1024
             snprintf(os->full_path, sizeof(os->full_path), '%s%s', c->dirname, os->initfile);
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libavformat/dashenc.c: In function 'dash_write_trailer':
libavformat/dashenc.c:494:49: 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:494:46: note: directive argument in the range [0, 2147483647]
         snprintf(playlist_name, string_size, '%smedia_%d.m3u8', base_url, id);
                                              ^~~~~~~~~~~~~~~~~
libavformat/dashenc.c:494:9: note: 'snprintf' output between 13 and 1045 bytes into a destination of size 1024
         snprintf(playlist_name, string_size, '%smedia_%d.m3u8', base_url, id);
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libavformat/dashenc.c: In function 'dash_write_packet':
libavformat/dashenc.c:2259:59: 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,
                                                           ^~
libavformat/dashenc.c:2259:9: note: 'snprintf' output between 1 and 2047 bytes into a destination of size 1024
         snprintf(os->full_path, sizeof(os->full_path), '%s%s', c->dirname,
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                  os->filename);
                  ~~~~~~~~~~~~~
libavformat/img2enc.c: In function 'write_packet':
libavformat/img2enc.c:180:55: warning: '.tmp' directive output may be truncated writing 4 bytes into a region of size between 1 and 1024 [-Wformat-truncation=]
         snprintf(img->tmp[i], sizeof(img->tmp[i]), '%s.tmp', filename);
                                                       ^~~~
libavformat/img2enc.c:180:9: note: 'snprintf' output between 5 and 1028 bytes into a destination of size 1024
         snprintf(img->tmp[i], sizeof(img->tmp[i]), '%s.tmp', filename);
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In function 'new_rendition',
    inlined from 'parse_playlist' at libavformat/hls.c:826:13:
libavformat/hls.c:544:13: warning: 'strncpy' output may be truncated copying between 2 and 62 bytes from a string of length 63 [-Wstringop-truncation]
             strncpy(rend->language + langlen + 1, info->assoc_language,
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                     sizeof(rend->language) - langlen - 2);
                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libavformat/mlvdec.c: In function 'read_header':
libavformat/mlvdec.c:361:63: warning: 'snprintf' output may be truncated before the last format character [-Wformat-truncation=]
             snprintf(filename + strlen(filename) - 2, 3, '%02d', i);
                                                               ^
libavformat/mlvdec.c:361:13: note: 'snprintf' output between 3 and 4 bytes into a destination of size 3
             snprintf(filename + strlen(filename) - 2, 3, '%02d', i);
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libavformat/rtmpproto.c: In function 'send_invoke_response':
libavformat/rtmpproto.c:1967:51: warning: ' is now published' directive output may be truncated writing 17 bytes into a region of size between 1 and 128 [-Wformat-truncation=]
         snprintf(statusmsg, sizeof(statusmsg), '%s is now published', filename);
                                                   ^~~~~~~~~~~~~~~~~
libavformat/rtmpproto.c:1967:9: note: 'snprintf' output between 18 and 145 bytes into a destination of size 128
         snprintf(statusmsg, sizeof(statusmsg), '%s is now published', filename);
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libavformat/matroskaenc.c: In function 'mkv_write_trailer':
libavformat/matroskaenc.c:3079:58: 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',
                                                          ^~~~~~~
libavformat/matroskaenc.c:3079:17: note: 'snprintf' output between 19 and 333 bytes into a destination of size 20
                 snprintf(duration_string, 20, '%02d:%02d:%012.9f',
                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                          (int) duration_sec / 3600, ((int) duration_sec / 60) % 60,
                          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                          fmod(duration_sec, 60));
                          ~~~~~~~~~~~~~~~~~~~~~~~
libavformat/smoothstreamingenc.c: In function 'ism_flush':
libavformat/smoothstreamingenc.c:509:49: warning: '/temp' directive output may be truncated writing 5 bytes into a region of size between 1 and 1024 [-Wformat-truncation=]
         snprintf(filename, sizeof(filename), '%s/temp', os->dirname);
                                                 ^~~~~
libavformat/smoothstreamingenc.c:509:9: note: 'snprintf' output between 6 and 1029 bytes into a destination of size 1024
         snprintf(filename, sizeof(filename), '%s/temp', os->dirname);
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libavformat/smoothstreamingenc.c:537:53: warning: '/temp' directive output may be truncated writing 5 bytes into a region of size between 1 and 1024 [-Wformat-truncation=]
             snprintf(filename, sizeof(filename), '%s/temp', os->dirname);
                                                     ^~~~~
libavformat/smoothstreamingenc.c:537:13: note: 'snprintf' output between 6 and 1029 bytes into a destination of size 1024
             snprintf(filename, sizeof(filename), '%s/temp', os->dirname);
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libavformat/smoothstreamingenc.c:544:63: warning: '/FragmentInfo(' directive output may be truncated writing 14 bytes into a region of size between 1 and 1024 [-Wformat-truncation=]
         snprintf(header_filename, sizeof(header_filename), '%s/FragmentInfo(%s=%'PRIu64')', os->dirname, os->stream_type_tag, start_ts);
                                                               ^~~~~~~~~~~~~~
libavformat/smoothstreamingenc.c:544:9: note: 'snprintf' output 18 or more bytes (assuming 1041) into a destination of size 1024
         snprintf(header_filename, sizeof(header_filename), '%s/FragmentInfo(%s=%'PRIu64')', os->dirname, os->stream_type_tag, start_ts);
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libavformat/smoothstreamingenc.c:545:63: warning: '/Fragments(' directive output may be truncated writing 11 bytes into a region of size between 1 and 1024 [-Wformat-truncation=]
         snprintf(target_filename, sizeof(target_filename), '%s/Fragments(%s=%'PRIu64')', os->dirname, os->stream_type_tag, start_ts);
                                                               ^~~~~~~~~~~
libavformat/smoothstreamingenc.c:545:9: note: 'snprintf' output 15 or more bytes (assuming 1038) into a destination of size 1024
         snprintf(target_filename, sizeof(target_filename), '%s/Fragments(%s=%'PRIu64')', os->dirname, os->stream_type_tag, start_ts);
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libavformat/vorbiscomment.c: In function 'ff_vorbiscomment_write':
libavformat/vorbiscomment.c:103:63: warning: '%03d' directive output may be truncated writing between 3 and 10 bytes into a region of size 4 [-Wformat-truncation=]
             snprintf(chapter_number, sizeof(chapter_number), '%03d', i);
                                                               ^~~~
libavformat/vorbiscomment.c:103:62: note: directive argument in the range [0, 2147483647]
             snprintf(chapter_number, sizeof(chapter_number), '%03d', i);
                                                              ^~~~~~
libavformat/vorbiscomment.c:103:13: note: 'snprintf' output between 4 and 11 bytes into a destination of size 4
             snprintf(chapter_number, sizeof(chapter_number), '%03d', i);
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libavformat/vorbiscomment.c:104:69: warning: '%02d' directive output may be truncated writing between 2 and 3 bytes into a region of size between 1 and 7 [-Wformat-truncation=]
             snprintf(chapter_time, sizeof(chapter_time), '%02d:%02d:%02d.%03d', h, m, s, ms);
                                                                     ^~~~
libavformat/vorbiscomment.c:104:58: note: directive argument in the range [-59, 59]
             snprintf(chapter_time, sizeof(chapter_time), '%02d:%02d:%02d.%03d', h, m, s, ms);
                                                          ^~~~~~~~~~~~~~~~~~~~~
libavformat/vorbiscomment.c:104:58: note: directive argument in the range [-999, 999]
libavformat/vorbiscomment.c:104:13: note: 'snprintf' output between 13 and 21 bytes into a destination of size 13
             snprintf(chapter_time, sizeof(chapter_time), '%02d:%02d:%02d.%03d', h, m, s, ms);
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./ffbuild/pkgconfig_generate.sh: 21: .: Can't open libavcodec/libavcodec.version
make: *** [ffbuild/library.mak:118: libavformat/libavformat.pc] Error 127
make: *** Waiting for unfinished jobs....
libavformat/rtsp.c: In function 'ff_rtsp_make_setup_request':
libavformat/rtsp.c:1584:30: warning: '%s' directive output may be truncated writing up to 4095 bytes into a region of size 4085 [-Wformat-truncation=]
                  'Transport: %s\r\n',
                              ^~
                  transport);
                  ~~~~~~~~~    
libavformat/rtsp.c:1583:9: note: 'snprintf' output between 14 and 4109 bytes into a destination of size 4096
         snprintf(cmd, sizeof(cmd),
         ^~~~~~~~~~~~~~~~~~~~~~~~~~
                  'Transport: %s\r\n',
                  ~~~~~~~~~~~~~~~~~~~~
                  transport);
                  ~~~~~~~~~~
libavformat/rtsp.c: In function 'ff_rtsp_connect':
libavformat/rtsp.c:1584:30: warning: '%s' directive output may be truncated writing up to 4095 bytes into a region of size 4085 [-Wformat-truncation=]
                  'Transport: %s\r\n',
                              ^~
                  transport);
                  ~~~~~~~~~    
libavformat/rtsp.c:1583:9: note: 'snprintf' output between 14 and 4109 bytes into a destination of size 4096
         snprintf(cmd, sizeof(cmd),
         ^~~~~~~~~~~~~~~~~~~~~~~~~~
                  'Transport: %s\r\n',
                  ~~~~~~~~~~~~~~~~~~~~
                  transport);
                  ~~~~~~~~~~