Hello Mr Mortiz, I downloaded ffmpeg with this command :
*git clone https://git.ffmpeg.org/ffmpeg.git <https://git.ffmpeg.org/ffmpeg.git> ffmpeg* Thhe output of the command : *ffmpeg --version* is : *ffmpeg version 3.4.4-0ubuntu0.18.04.1 Copyright (c) 2000-2018 the FFmpeg developers built with gcc 7 (Ubuntu 7.3.0-16ubuntu3) configuration: --prefix=/usr --extra-version=0ubuntu0.18.04.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared libavutil 55. 78.100 / 55. 78.100 libavcodec 57.107.100 / 57.107.100 libavformat 57. 83.100 / 57. 83.100 libavdevice 57. 10.100 / 57. 10.100 libavfilter 6.107.100 / 6.107.100 libavresample 3. 7. 0 / 3. 7. 0 libswscale 4. 8.100 / 4. 8.100 libswresample 2. 9.100 / 2. 9.100 libpostproc 54. 7.100 / 54. 7.100* *The ouput error while running cmake is* : << CC libavdevice/utils.o In file included from src/libavdevice/fbdev_dec.c:42:0: src/libavutil/parseutils.h:186:64: warning: ‘struct tm’ declared inside parameter list will not be visible outside of this definition or declaration char *av_small_strptime(const char *p, const char *fmt, struct tm *dt); ^~ src/libavutil/parseutils.h:191:25: warning: ‘struct tm’ declared inside parameter list will not be visible outside of this definition or declaration time_t av_timegm(struct tm *tm); ^~ CC libavdevice/v4l2-common.o *src/libavdevice/fbdev_dec.c: In function ‘fbdev_read_packet’:src/libavdevice/fbdev_dec.c:155:21: error: storage size of ‘ts’ isn’t known struct timespec ts;* ^~ *src/libavdevice/fbdev_dec.c:178:9: error: implicit declaration of function ‘nanosleep’; did you mean ‘av_usleep’? [-Werror=implicit-function-declaration] while (nanosleep(&ts, &ts) < 0 && errno == EINTR);* ^~~~~~~~~ av_usleep src/libavdevice/fbdev_dec.c:155:21: warning: unused variable ‘ts’ [-Wunused-variable] struct timespec ts; ^~ cc1: some warnings being treated as errors /home/n_djore/Bureau/stego_Project/build/libs/ffmpeg/ffbuild/common.mak:60: recipe for target 'libavdevice/fbdev_dec.o' failed make[3]: *** [libavdevice/fbdev_dec.o] Error 1 make[3]: *** Attente des tâches non terminées.... In file included from src/libavutil/common.h:105:0, from src/libavutil/avutil.h:296, from src/libavutil/imgutils.h:30, from src/libavdevice/sdl2.c:30: ./config.h:189:0: warning: "HAVE_SEM_TIMEDWAIT" redefined #define HAVE_SEM_TIMEDWAIT 0 In file included from /usr/include/SDL2/SDL_stdinc.h:31:0, from /usr/include/SDL2/SDL_main.h:25, from /usr/include/SDL2/SDL.h:32, from src/libavdevice/sdl2.c:26: /usr/include/SDL2/SDL_config.h:188:0: note: this is the location of the previous definition #define HAVE_SEM_TIMEDWAIT 1 In file included from src/libavutil/common.h:105:0, from src/libavutil/avutil.h:296, from src/libavutil/imgutils.h:30, from src/libavdevice/sdl2.c:30: ./config.h:276:0: warning: "HAVE_CLOCK_GETTIME" redefined #define HAVE_CLOCK_GETTIME 0 In file included from /usr/include/SDL2/SDL_stdinc.h:31:0, from /usr/include/SDL2/SDL_main.h:25, from /usr/include/SDL2/SDL.h:32, from src/libavdevice/sdl2.c:26: /usr/include/SDL2/SDL_config.h:182:0: note: this is the location of the previous definition #define HAVE_CLOCK_GETTIME 1 In file included from src/libavutil/common.h:105:0, from src/libavutil/avutil.h:296, from src/libavutil/imgutils.h:30, from src/libavdevice/sdl2.c:30: ./config.h:304:0: warning: "HAVE_NANOSLEEP" redefined >> Thank you for your help Le jeu. 3 janv. 2019 à 11:09, Moritz Barsnick <[email protected]> a écrit : > On Thu, Jan 03, 2019 at 07:40:15 +0100, NDJORE BORIS wrote: > > It's impossible for me to build ffmpeg on ubuntu 18.04 with gcc7.3 and > > g++7.3 compiler. When I run ./configure, I have the errors "implicit > > declaration of nanosleep" and "size of ts is unknown". > > Can you help me please? > > Can you please be more specific: > - Which version of ffmpeg's source did you use? (We recommend git > master HEAD.) > - What is the complete error message? Please quote (as copy/pasted > text) the complete output when you run "make" for a second time. > (Second time so that only the failing compile is repeated.) > > Thanks, > Moritz > _______________________________________________ > ffmpeg-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
