# Except MJPG any codec doesn't work **URL:** \ **Category:** C++\ **Tags:** videoio\ **Created:** [January 9, 2023, 1:04am UTC](https://forum.opencv.org/t/except-mjpg-any-codec-doesnt-work/11539 "2023-01-09T01:04:01Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![newbird](https://avatars.discourse-cdn.com/v4/letter/n/5f8ce5/32.png) [@newbird](https://forum.opencv.org/u/newbird)\ **Post date:** [January 9, 2023, 1:04am UTC](https://forum.opencv.org/t/except-mjpg-any-codec-doesnt-work/11539/1 "2023-01-09T01:04:01Z")
using videowriter, tried to save MATs into video file(like ‘.avi’ 'mp4 etc) only I could make .avi with MJPG codec. should I install additional things to use other codec like h264? i’m using ubuntu os, QT environment ---
**Author:** ![berak](https://avatars.discourse-cdn.com/v4/letter/b/85f322/32.png) [@berak](https://forum.opencv.org/u/berak)\ **Post date:** [January 9, 2023, 8:25am UTC](https://forum.opencv.org/t/except-mjpg-any-codec-doesnt-work/11539/2 "2023-01-09T08:25:04Z")
opencv version ? self built ? output of `cout << getBuildInformation();` ? (there’s a VideoIO section) > [@newbird](#): > > only I could make .avi with MJPG codec. this is indeed the only ‘builtin’ codec, anything else is handled from ffmpeg / gstreamer ---
**Author:** ![newbird](https://avatars.discourse-cdn.com/v4/letter/n/5f8ce5/32.png) [@newbird](https://forum.opencv.org/u/newbird)\ **Post date:** [January 10, 2023, 6:32am UTC](https://forum.opencv.org/t/except-mjpg-any-codec-doesnt-work/11539/3 "2023-01-10T06:32:35Z")
…then I must build it again…? ```auto General configuration for OpenCV 4.6.0-dev ===================================== Version control: unknown Platform: Timestamp: 2022-12-19T03:12:02Z Host: Linux 5.4.0-135-generic x86_64 CMake: 3.10.2 CMake generator: Unix Makefiles CMake build tool: /usr/bin/make Configuration: Release CPU/HW features: Baseline: SSE SSE2 SSE3 requested: SSE3 Dispatched code generation: SSE4_1 SSE4_2 FP16 AVX AVX2 AVX512_SKX requested: SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX SSE4_1 (18 files): + SSSE3 SSE4_1 SSE4_2 (2 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 (1 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX AVX (5 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX AVX2 (34 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2 AVX512_SKX (8 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2 AVX_512F AVX512_COMMON AVX512_SKX C/C++: Built as dynamic libs?: YES C++ standard: 11 C++ Compiler: /usr/bin/c++ (ver 7.5.0) C++ flags (Release): -fsigned-char -W -Wall -Wreturn-type -Wnon-virtual-dtor -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG -DNDEBUG C++ flags (Debug): -fsigned-char -W -Wall -Wreturn-type -Wnon-virtual-dtor -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -g -O0 -DDEBUG -D_DEBUG C Compiler: /usr/bin/cc C flags (Release): -fsigned-char -W -Wall -Wreturn-type -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -fvisibility=hidden -O3 -DNDEBUG -DNDEBUG C flags (Debug): -fsigned-char -W -Wall -Wreturn-type -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -fvisibility=hidden -g -O0 -DDEBUG -D_DEBUG Linker flags (Release): -Wl,--exclude-libs,libippicv.a -Wl,--exclude-libs,libippiw.a -Wl,--gc-sections -Wl,--as-needed -Wl,--no-undefined Linker flags (Debug): -Wl,--exclude-libs,libippicv.a -Wl,--exclude-libs,libippiw.a -Wl,--gc-sections -Wl,--as-needed -Wl,--no-undefined ccache: NO Precompiled headers: NO Extra dependencies: dl m pthread rt 3rdparty dependencies: OpenCV modules: To be built: calib3d core dnn features2d flann gapi highgui imgcodecs imgproc ml objdetect photo stitching ts video videoio Disabled: world Disabled by dependency: - Unavailable: java python2 python3 Applications: tests perf_tests apps Documentation: NO Non-free algorithms: NO GUI: GTK3 GTK+: YES (ver 3.22.30) GThread : YES (ver 2.56.4) GtkGlExt: NO VTK support: NO Media I/O: ZLib: /usr/lib/x86_64-linux-gnu/libz.so (ver 1.2.11) JPEG: /usr/lib/x86_64-linux-gnu/libjpeg.so (ver 80) WEBP: build (ver encoder: 0x020f) PNG: /usr/lib/x86_64-linux-gnu/libpng.so (ver 1.6.34) TIFF: build (ver 42 - 4.2.0) JPEG 2000: build (ver 2.4.0) OpenEXR: build (ver 2.3.0) HDR: YES SUNRASTER: YES PXM: YES PFM: YES Video I/O: DC1394: NO FFMPEG: NO avcodec: NO avformat: NO avutil: NO swscale: NO avresample: NO GStreamer: NO v4l/v4l2: YES (linux/videodev2.h) Parallel framework: pthreads Trace: YES (with Intel ITT) Other third-party libraries: Intel IPP: 2020.0.0 Gold [2020.0.0] at: /home/mskim/opencv/build/3rdparty/ippicv/ippicv_lnx/icv Intel IPP IW: sources (2020.0.0) at: /home/mskim/opencv/build/3rdparty/ippicv/ippicv_lnx/iw VA: NO Lapack: NO Eigen: NO Custom HAL: NO Protobuf: build (3.19.1) OpenCL: YES (no extra features) Include path: /home/mskim/opencv/opencv/3rdparty/include/opencl/1.2 Link libraries: Dynamic load Python (for build): /usr/bin/python2.7 Java: ant: NO JNI: NO Java wrappers: NO Java tests: NO Install to: /usr/local ----------------------------------------------------------------- ``` ---
**Author:** ![berak](https://avatars.discourse-cdn.com/v4/letter/b/85f322/32.png) [@berak](https://forum.opencv.org/u/berak)\ **Post date:** [January 10, 2023, 6:40am UTC](https://forum.opencv.org/t/except-mjpg-any-codec-doesnt-work/11539/4 "2023-01-10T06:40:04Z")
> [@newbird](#): > > …then I must build it again…? i think so, too . . . . ;/