Phenomenon: No problem running on Mac environment, but an error occurs when running on Linux environment, unable to open video files;
Effort: Need to recompile OpenCV;
Issue: Unable to enable ffmpeg switch.
It has been bothering me for a long time, thank you very much for your help.
-DWITH_FFMPEG=ON \
– Video I/O:
– DC1394: NO
– FFMPEG: NO
– avcodec: NO
– avformat: NO
– avutil: NO
– swscale: NO
– avresample: NO
– AVFoundation: YES
(base) liupeng@okerdeMacBook-Pro build % cmake -DWITH_GSTREAMER=OFF \ -DBUILD_opencv_highgui=OFF \
-DBUILD_opencv_dnn=OFF \
-DBUILD_opencv_ml=OFF \
-DBUILD_opencv_apps=OFF \
-DBUILD_opencv_js=OFF \
-DBUILD_opencv_ts=OFF \
-DBUILD_opencv_viz=OFF \
-DBUILD_opencv_lagacy=OFF \
-DBUILD_opencv_androidcamera=OFF \
-DBUILD_SHARED_LIBS=OFF \
-DBUILD_PERF_TESTS=OFF \
-DBUILD_TESTS=OFF \
-DBUILD_opencv_python2=OFF \
-DOPENCV_FFMPEG_SKIP_BUILD_CHECK=ON \
-DWITH_V4L=OFF \
-DWITH_FFMPEG=ON \
-DBUILD_opencv_python3=OFF ../../opencv
-- Detected processor: x86_64
-- Looking for ccache - not found
-- AVX512_KNM is not supported by C++ compiler
-- libjpeg-turbo: VERSION = 2.1.3, BUILD = opencv-4.9.0-dev-libjpeg-turbo
-- libjpeg-turbo(SIMD): SIMD extensions disabled: could not find NASM compiler. Performance will suffer.
-- Could NOT find OpenJPEG (minimal suitable version: 2.0, recommended version >= 2.3.1). OpenJPEG will be built from sources
-- OpenJPEG: VERSION = 2.5.0, BUILD = opencv-4.9.0-dev-openjp2-2.5.0
-- OpenJPEG libraries will be built from sources: libopenjp2 (version "2.5.0")
-- IPPICV: Downloading ippicv_2021.9.1_mac_intel64_20230919_general.tgz from https://raw.githubusercontent.com/opencv/opencv_3rdparty/c7c6d527dde5fee7cb914ee9e4e20f7436aab3a1/ippicv/ippicv_2021.9.1_mac_intel64_20230919_general.tgz
-- Try 1 failed
CMake Warning at cmake/OpenCVDownload.cmake:248 (message):
IPPICV: Download failed: 22;"HTTP response code said error"
For details please refer to the download log file:
/Users/liupeng/Downloads/opencv/opencv/build/CMakeDownloadLog.txt
Call Stack (most recent call first):
3rdparty/ippicv/ippicv.cmake:37 (ocv_download)
cmake/OpenCVFindIPP.cmake:259 (download_ippicv)
cmake/OpenCVFindLibsPerf.cmake:12 (include)
CMakeLists.txt:820 (include)
-- LAPACK(LAPACK/Apple): LAPACK_LIBRARIES: /Library/Developer/CommandLineTools/SDKs/MacOSX13.3.sdk/System/Library/Frameworks/Accelerate.framework;-lm;-ldl
-- LAPACK(LAPACK/Apple): Support is enabled.
xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory '/Library/Developer/CommandLineTools' is a command line tools instance
-- Could NOT find JNI (missing: JAVA_INCLUDE_PATH JAVA_INCLUDE_PATH2 AWT)
-- VTK is not found. Please set -DVTK_DIR in CMake to VTK build directory, or to VTK install subdirectory with VTKConfig.cmake file
-- Allocator metrics storage type: 'long long'
-- Excluding from source files list: modules/imgproc/src/imgwarp.lasx.cpp
-- Excluding from source files list: modules/imgproc/src/resize.lasx.cpp
-- Found 'misc' Python modules from /Users/liupeng/Downloads/opencv/opencv/modules/python/package/extra_modules
-- Found 'mat_wrapper;utils' Python modules from /Users/liupeng/Downloads/opencv/opencv/modules/core/misc/python/package
-- Found 'gapi' Python modules from /Users/liupeng/Downloads/opencv/opencv/modules/gapi/misc/python/package
--
-- General configuration for OpenCV 4.9.0-dev =====================================
-- Version control: 4.9.0-300-geba158fb0c
--
-- Platform:
-- Timestamp: 2024-03-31T19:30:18Z
-- Host: Darwin 22.2.0 x86_64
-- CMake: 3.29.0
-- CMake generator: Unix Makefiles
-- CMake build tool: /usr/bin/make
-- Configuration: Release
--
-- CPU/HW features:
-- Baseline: SSE SSE2 SSE3 SSSE3 SSE4_1
-- requested: DETECT
-- Dispatched code generation: SSE4_2 FP16 AVX AVX2 AVX512_SKX
-- requested: SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX
-- SSE4_2 (1 files): + POPCNT SSE4_2
-- FP16 (0 files): + POPCNT SSE4_2 FP16 AVX
-- AVX (3 files): + POPCNT SSE4_2 AVX
-- AVX2 (30 files): + POPCNT SSE4_2 FP16 FMA3 AVX AVX2
-- AVX512_SKX (3 files): + POPCNT SSE4_2 FP16 FMA3 AVX AVX2 AVX_512F AVX512_COMMON AVX512_SKX
--
-- C/C++:
-- Built as dynamic libs?: NO
-- C++ standard: 11
-- C++ Compiler: /Library/Developer/CommandLineTools/usr/bin/c++ (ver 14.0.3.14030022)
-- C++ flags (Release): -fsigned-char -W -Wall -Wreturn-type -Wnon-virtual-dtor -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wno-delete-non-virtual-dtor -Wno-unnamed-type-template-args -Wno-comment -fdiagnostics-show-option -Wno-long-long -Qunused-arguments -Wno-semicolon-before-method-body -ffunction-sections -fdata-sections -fvisibility=hidden -fvisibility-inlines-hidden -Wno-deprecated-copy -O3 -DNDEBUG -DNDEBUG
-- C++ flags (Debug): -fsigned-char -W -Wall -Wreturn-type -Wnon-virtual-dtor -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wno-delete-non-virtual-dtor -Wno-unnamed-type-template-args -Wno-comment -fdiagnostics-show-option -Wno-long-long -Qunused-arguments -Wno-semicolon-before-method-body -ffunction-sections -fdata-sections -fvisibility=hidden -fvisibility-inlines-hidden -Wno-deprecated-copy -g -O0 -DDEBUG -D_DEBUG
-- C Compiler: /Library/Developer/CommandLineTools/usr/bin/cc
-- C flags (Release): -fsigned-char -W -Wall -Wreturn-type -Wnon-virtual-dtor -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wno-delete-non-virtual-dtor -Wno-unnamed-type-template-args -Wno-comment -fdiagnostics-show-option -Wno-long-long -Qunused-arguments -Wno-semicolon-before-method-body -ffunction-sections -fdata-sections -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 -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wno-delete-non-virtual-dtor -Wno-unnamed-type-template-args -Wno-comment -fdiagnostics-show-option -Wno-long-long -Qunused-arguments -Wno-semicolon-before-method-body -ffunction-sections -fdata-sections -fvisibility=hidden -fvisibility-inlines-hidden -g -O0 -DDEBUG -D_DEBUG
-- Linker flags (Release): -Wl,-dead_strip
-- Linker flags (Debug): -Wl,-dead_strip
-- ccache: NO
-- Precompiled headers: NO
-- Extra dependencies: -framework OpenCL /Library/Developer/CommandLineTools/SDKs/MacOSX13.3.sdk/System/Library/Frameworks/Accelerate.framework -lm -ldl OpenEXR::OpenEXR -framework AppKit
-- 3rdparty dependencies: ade ittnotify libjpeg-turbo libwebp libpng libtiff libopenjp2 zlib
--
-- OpenCV modules:
-- To be built: calib3d core features2d flann gapi imgcodecs imgproc objdetect photo stitching video videoio
-- Disabled: dnn highgui ml world
-- Disabled by dependency: -
-- Unavailable: java python2 python3 ts
-- Applications: -
-- Documentation: NO
-- Non-free algorithms: NO
--
-- GUI:
-- Cocoa: YES
-- VTK support: NO
--
-- Media I/O:
-- ZLib: build (ver 1.3.1)
-- JPEG: build-libjpeg-turbo (ver 2.1.3-62)
-- SIMD Support Request: YES
-- SIMD Support: NO
-- WEBP: build (ver encoder: 0x020f)
-- PNG: build (ver 1.6.37)
-- TIFF: build (ver 42 - 4.6.0)
-- JPEG 2000: build (ver 2.5.0)
-- OpenEXR: OpenEXR::OpenEXR (ver 3.2.4)
-- 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
-- AVFoundation: YES
--
-- Parallel framework: GCD
--
-- Trace: YES (with Intel ITT)
--
-- Other third-party libraries:
-- Lapack: YES (/Library/Developer/CommandLineTools/SDKs/MacOSX13.3.sdk/System/Library/Frameworks/Accelerate.framework -lm -ldl)
-- Eigen: NO
-- Custom HAL: NO
-- Protobuf: build (3.19.1)
-- Flatbuffers: builtin/3rdparty (23.5.9)
--
-- OpenCL: YES (no extra features)
-- Include path: NO
-- Link libraries: -framework OpenCL
--
-- Python (for build): /Users/liupeng/anaconda3/bin/python3
--
-- Java:
-- ant: NO
-- Java: YES (ver 21.0.2)
-- JNI: NO
-- Java wrappers: NO
-- Java tests: NO
--
-- Install to: /usr/local
-- -----------------------------------------------------------------
--
-- Configuring done (9.7s)
-- Generating done (0.7s)
-- Build files have been written to: /Users/liupeng/Downloads/opencv/opencv/build