Hi there ! I've tried to build libv4lconvert (ubuntu 16.04, 64bits) cloning the git. After removing the first line of the Makefile in the libv4lconvert directory (that was set to arm architecture), the problem was that it didn't find "linux/videodev.h". I tried: sudo ln -s /usr/include/linux/videodev2.h /usr/include/linux/videodev.h but that was the same. I tried: sudo ln -s /usr/include/libv4l1-videodev.h /usr/include/linux/videodev.h and then it told me a lot things (that i don't understand): In file included from /usr/include/x86_64-linux-gnu/asm/ioctl.h:1:0, from /usr/include/linux/ioctl.h:4, from ../libv4lconvert/libv4lsyscall-priv.h:41, from log.c:21: log.c:42:11: error: ‘VIDIOCKEY’ undeclared here (not in a function) [_IOC_NR(VIDIOCKEY)] = "VIDIOCKEY", ... Here's the complete log: bobby@bobby-E202SA:~/Bureau/libv4lconvert$ git clone https://github.com/ashwing920/libv4lconvert.git Clonage dans 'libv4lconvert'... remote: Counting objects: 113, done. remote: Total 113 (delta 0), reused 0 (delta 0), pack-reused 113 Réception d'objets: 100% (113/113), 522.41 KiB | 687.00 KiB/s, fait. Résolution des deltas: 100% (24/24), fait. Vérification de la connectivité... fait. bobby@bobby-E202SA:~/Bureau/libv4lconvert$ make make: *** Pas de cible spécifiée et aucun makefile n'a été trouvé. Arrêt. bobby@bobby-E202SA:~/Bureau/libv4lconvert$ cd li* bobby@bobby-E202SA:~/Bureau/libv4lconvert/libv4lconvert$ make make -C libv4lconvert V4L2_LIB_VERSION=0.6.2-test all make[1] : on entre dans le répertoire « /home/bobby/Bureau/libv4lconvert/libv4lconvert/libv4lconvert » cc -Wp,-MMD,"libv4lconvert.d",-MQ,"libv4lconvert.o",-MP -c -I../include -I../../../include -fvisibility=hidden -DLIBDIR=\"/usr/local/lib\" -DLIBSUBDIR=\"libv4l\" -g -O1 -Wall -Wno-unused -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -o libv4lconvert.o libv4lconvert.c cc -Wp,-MMD,"sn9c10x.d",-MQ,"sn9c10x.o",-MP -c -I../include -I../../../include -fvisibility=hidden -DLIBDIR=\"/usr/local/lib\" -DLIBSUBDIR=\"libv4l\" -g -O1 -Wall -Wno-unused -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -o sn9c10x.o sn9c10x.c cc -Wp,-MMD,"pac207.d",-MQ,"pac207.o",-MP -c -I../include -I../../../include -fvisibility=hidden -DLIBDIR=\"/usr/local/lib\" -DLIBSUBDIR=\"libv4l\" -g -O1 -Wall -Wno-unused -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -o pac207.o pac207.c cc -Wp,-MMD,"mr97310a.d",-MQ,"mr97310a.o",-MP -c -I../include -I../../../include -fvisibility=hidden -DLIBDIR=\"/usr/local/lib\" -DLIBSUBDIR=\"libv4l\" -g -O1 -Wall -Wno-unused -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -o mr97310a.o mr97310a.c cc -Wp,-MMD,"flip.d",-MQ,"flip.o",-MP -c -I../include -I../../../include -fvisibility=hidden -DLIBDIR=\"/usr/local/lib\" -DLIBSUBDIR=\"libv4l\" -g -O1 -Wall -Wno-unused -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -o flip.o flip.c cc -Wp,-MMD,"crop.d",-MQ,"crop.o",-MP -c -I../include -I../../../include -fvisibility=hidden -DLIBDIR=\"/usr/local/lib\" -DLIBSUBDIR=\"libv4l\" -g -O1 -Wall -Wno-unused -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -o crop.o crop.c cc -Wp,-MMD,"jidctflt.d",-MQ,"jidctflt.o",-MP -c -I../include -I../../../include -fvisibility=hidden -DLIBDIR=\"/usr/local/lib\" -DLIBSUBDIR=\"libv4l\" -g -O1 -Wall -Wno-unused -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -o jidctflt.o jidctflt.c cc -Wp,-MMD,"rgbyuv.d",-MQ,"rgbyuv.o",-MP -c -I../include -I../../../include -fvisibility=hidden -DLIBDIR=\"/usr/local/lib\" -DLIBSUBDIR=\"libv4l\" -g -O1 -Wall -Wno-unused -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -o rgbyuv.o rgbyuv.c cc -Wp,-MMD,"sn9c2028-decomp.d",-MQ,"sn9c2028-decomp.o",-MP -c -I../include -I../../../include -fvisibility=hidden -DLIBDIR=\"/usr/local/lib\" -DLIBSUBDIR=\"libv4l\" -g -O1 -Wall -Wno-unused -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -o sn9c2028-decomp.o sn9c2028-decomp.c cc -Wp,-MMD,"bayer.d",-MQ,"bayer.o",-MP -c -I../include -I../../../include -fvisibility=hidden -DLIBDIR=\"/usr/local/lib\" -DLIBSUBDIR=\"libv4l\" -g -O1 -Wall -Wno-unused -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -o bayer.o bayer.c cc -Wp,-MMD,"hm12.d",-MQ,"hm12.o",-MP -c -I../include -I../../../include -fvisibility=hidden -DLIBDIR=\"/usr/local/lib\" -DLIBSUBDIR=\"libv4l\" -g -O1 -Wall -Wno-unused -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -o hm12.o hm12.c cc -Wp,-MMD,"control/libv4lcontrol.d",-MQ,"control/libv4lcontrol.o",-MP -c -I../include -I../../../include -fvisibility=hidden -DLIBDIR=\"/usr/local/lib\" -DLIBSUBDIR=\"libv4l\" -g -O1 -Wall -Wno-unused -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -o control/libv4lcontrol.o control/libv4lcontrol.c control/libv4lcontrol.c: In function ‘v4lcontrol_create’: control/libv4lcontrol.c:449:5: warning: ignoring return value of ‘ftruncate’, declared with attribute warn_unused_result [-Wunused-result] ftruncate(shm_fd, V4LCONTROL_SHM_SIZE); ^ cc -Wp,-MMD,"processing/libv4lprocessing.d",-MQ,"processing/libv4lprocessing.o",-MP -c -I../include -I../../../include -fvisibility=hidden -DLIBDIR=\"/usr/local/lib\" -DLIBSUBDIR=\"libv4l\" -g -O1 -Wall -Wno-unused -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -o processing/libv4lprocessing.o processing/libv4lprocessing.c cc -Wp,-MMD,"processing/whitebalance.d",-MQ,"processing/whitebalance.o",-MP -c -I../include -I../../../include -fvisibility=hidden -DLIBDIR=\"/usr/local/lib\" -DLIBSUBDIR=\"libv4l\" -g -O1 -Wall -Wno-unused -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -o processing/whitebalance.o processing/whitebalance.c cc -Wp,-MMD,"processing/autogain.d",-MQ,"processing/autogain.o",-MP -c -I../include -I../../../include -fvisibility=hidden -DLIBDIR=\"/usr/local/lib\" -DLIBSUBDIR=\"libv4l\" -g -O1 -Wall -Wno-unused -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -o processing/autogain.o processing/autogain.c cc -Wp,-MMD,"helper.d",-MQ,"helper.o",-MP -c -I../include -I../../../include -fvisibility=hidden -DLIBDIR=\"/usr/local/lib\" -DLIBSUBDIR=\"libv4l\" -g -O1 -Wall -Wno-unused -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -o helper.o helper.c ar cqs libv4lconvert.a libv4lconvert.o tinyjpeg.o sn9c10x.o sn9c20x.o pac207.o mr97310a.o flip.o crop.o jidctflt.o spca561-decompress.o rgbyuv.o sn9c2028-decomp.o spca501.o sq905c.o bayer.o hm12.o control/libv4lcontrol.o processing/libv4lprocessing.o processing/whitebalance.o processing/autogain.o processing/gamma.o helper.o make[1] : on quitte le répertoire « /home/bobby/Bureau/libv4lconvert/libv4lconvert/libv4lconvert » make -C libv4l2 V4L2_LIB_VERSION=0.6.2-test all make[1] : on entre dans le répertoire « /home/bobby/Bureau/libv4lconvert/libv4lconvert/libv4l2 » cc -Wp,-MMD,"libv4l2.d",-MQ,"libv4l2.o",-MP -c -I../include -I../../../include -fvisibility=hidden -fPIC -g -O1 -Wall -Wno-unused -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -o libv4l2.o libv4l2.c cc -Wp,-MMD,"log.d",-MQ,"log.o",-MP -c -I../include -I../../../include -fvisibility=hidden -fPIC -g -O1 -Wall -Wno-unused -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -o log.o log.c cc -shared -Wl,-soname,../libv4lconvert/libv4lconvert.so.0 -o ../libv4lconvert/libv4lconvert.so.0 ln -f -s ../libv4lconvert/libv4lconvert.so.0 ../libv4lconvert/libv4lconvert.so cc -shared -Wl,-soname,libv4l2.so.0 -o libv4l2.so.0 libv4l2.o log.o ../libv4lconvert/libv4lconvert.so -lpthread ln -f -s libv4l2.so.0 libv4l2.so cc -Wp,-MMD,"v4l2convert.d",-MQ,"v4l2convert.o",-MP -c -I../include -I../../../include -fvisibility=hidden -fPIC -g -O1 -Wall -Wno-unused -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -o v4l2convert.o v4l2convert.c cc -shared -Wl,-soname,v4l2convert.so.0 -o v4l2convert.so.0 v4l2convert.o libv4l2.so ln -f -s v4l2convert.so.0 v4l2convert.so make[1] : on quitte le répertoire « /home/bobby/Bureau/libv4lconvert/libv4lconvert/libv4l2 » make -C libv4l1 V4L2_LIB_VERSION=0.6.2-test all make[1] : on entre dans le répertoire « /home/bobby/Bureau/libv4lconvert/libv4lconvert/libv4l1 » cc -Wp,-MMD,"libv4l1.d",-MQ,"libv4l1.o",-MP -c -I../include -I../../../include -fvisibility=hidden -fPIC -g -O1 -Wall -Wno-unused -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -o libv4l1.o libv4l1.c libv4l1.c:53:28: fatal error: linux/videodev.h: Aucun fichier ou dossier de ce type compilation terminated. Makefile:81 : la recette pour la cible « libv4l1.o » a échouée make[1]: *** [libv4l1.o] Erreur 1 make[1] : on quitte le répertoire « /home/bobby/Bureau/libv4lconvert/libv4lconvert/libv4l1 » Makefile:5 : la recette pour la cible « all » a échouée make: *** [all] Erreur 2 bobby@bobby-E202SA:~/Bureau/libv4lconvert/libv4lconvert$ make make -C libv4lconvert V4L2_LIB_VERSION=0.6.2-test all make[1] : on entre dans le répertoire « /home/bobby/Bureau/libv4lconvert/libv4lconvert/libv4lconvert » make[1]: rien à faire pour « all ». make[1] : on quitte le répertoire « /home/bobby/Bureau/libv4lconvert/libv4lconvert/libv4lconvert » make -C libv4l2 V4L2_LIB_VERSION=0.6.2-test all make[1] : on entre dans le répertoire « /home/bobby/Bureau/libv4lconvert/libv4lconvert/libv4l2 » make[1]: rien à faire pour « all ». make[1] : on quitte le répertoire « /home/bobby/Bureau/libv4lconvert/libv4lconvert/libv4l2 » make -C libv4l1 V4L2_LIB_VERSION=0.6.2-test all make[1] : on entre dans le répertoire « /home/bobby/Bureau/libv4lconvert/libv4lconvert/libv4l1 » cc -Wp,-MMD,"libv4l1.d",-MQ,"libv4l1.o",-MP -c -I../include -I../../../include -fvisibility=hidden -fPIC -g -O1 -Wall -Wno-unused -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -o libv4l1.o libv4l1.c cc -Wp,-MMD,"log.d",-MQ,"log.o",-MP -c -I../include -I../../../include -fvisibility=hidden -fPIC -g -O1 -Wall -Wno-unused -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -o log.o log.c In file included from /usr/include/x86_64-linux-gnu/asm/ioctl.h:1:0, from /usr/include/linux/ioctl.h:4, from ../libv4lconvert/libv4lsyscall-priv.h:41, from log.c:21: log.c:42:11: error: ‘VIDIOCKEY’ undeclared here (not in a function) [_IOC_NR(VIDIOCKEY)] = "VIDIOCKEY", ^ log.c:42:3: error: array index in initializer not of integer type [_IOC_NR(VIDIOCKEY)] = "VIDIOCKEY", ^ log.c:42:3: note: (near initialization for ‘v4l1_ioctls’) log.c:50:11: error: ‘VIDIOCGUNIT’ undeclared here (not in a function) [_IOC_NR(VIDIOCGUNIT)] = "VIDIOCGUNIT", ^ log.c:50:3: error: array index in initializer not of integer type [_IOC_NR(VIDIOCGUNIT)] = "VIDIOCGUNIT", ^ log.c:50:3: note: (near initialization for ‘v4l1_ioctls’) log.c:51:11: error: ‘VIDIOCGCAPTURE’ undeclared here (not in a function) [_IOC_NR(VIDIOCGCAPTURE)] = "VIDIOCGCAPTURE", ^ log.c:51:3: error: array index in initializer not of integer type [_IOC_NR(VIDIOCGCAPTURE)] = "VIDIOCGCAPTURE", ^ log.c:51:3: note: (near initialization for ‘v4l1_ioctls’) log.c:52:11: error: ‘VIDIOCSCAPTURE’ undeclared here (not in a function) [_IOC_NR(VIDIOCSCAPTURE)] = "VIDIOCSCAPTURE", ^ log.c:52:3: error: array index in initializer not of integer type [_IOC_NR(VIDIOCSCAPTURE)] = "VIDIOCSCAPTURE", ^ log.c:52:3: note: (near initialization for ‘v4l1_ioctls’) log.c:53:11: error: ‘VIDIOCSPLAYMODE’ undeclared here (not in a function) [_IOC_NR(VIDIOCSPLAYMODE)] = "VIDIOCSPLAYMODE", ^ log.c:53:3: error: array index in initializer not of integer type [_IOC_NR(VIDIOCSPLAYMODE)] = "VIDIOCSPLAYMODE", ^ log.c:53:3: note: (near initialization for ‘v4l1_ioctls’) log.c:54:11: error: ‘VIDIOCSWRITEMODE’ undeclared here (not in a function) [_IOC_NR(VIDIOCSWRITEMODE)] = "VIDIOCSWRITEMODE", ^ log.c:54:3: error: array index in initializer not of integer type [_IOC_NR(VIDIOCSWRITEMODE)] = "VIDIOCSWRITEMODE", ^ log.c:54:3: note: (near initialization for ‘v4l1_ioctls’) log.c:55:11: error: ‘VIDIOCGPLAYINFO’ undeclared here (not in a function) [_IOC_NR(VIDIOCGPLAYINFO)] = "VIDIOCGPLAYINFO", ^ log.c:55:3: error: array index in initializer not of integer type [_IOC_NR(VIDIOCGPLAYINFO)] = "VIDIOCGPLAYINFO", ^ log.c:55:3: note: (near initialization for ‘v4l1_ioctls’) log.c:56:11: error: ‘VIDIOCSMICROCODE’ undeclared here (not in a function) [_IOC_NR(VIDIOCSMICROCODE)] = "VIDIOCSMICROCODE", ^ log.c:56:3: error: array index in initializer not of integer type [_IOC_NR(VIDIOCSMICROCODE)] = "VIDIOCSMICROCODE", ^ log.c:56:3: note: (near initialization for ‘v4l1_ioctls’) Makefile:81 : la recette pour la cible « log.o » a échouée make[1]: *** [log.o] Erreur 1 make[1] : on quitte le répertoire « /home/bobby/Bureau/libv4lconvert/libv4lconvert/libv4l1 » Makefile:5 : la recette pour la cible « all » a échouée make: *** [all] Erreur 2 bobby@bobby-E202SA:~/Bureau/libv4lconvert/libv4lconvert$ Best regards, Thomas
