{"id":22370063,"url":"https://github.com/andreicherniaev/ffmpeg_mjpeg-transcode-vp9_c_universe","last_synced_at":"2025-08-12T18:06:21.083Z","repository":{"id":194436091,"uuid":"687991640","full_name":"AndreiCherniaev/FFMpeg_MJPEG-transcode-VP9_C_Universe","owner":"AndreiCherniaev","description":"MJPEG -transcoding-\u003e VP9 by FFmpeg in C example","archived":false,"fork":false,"pushed_at":"2024-07-18T07:43:21.000Z","size":384,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"main","last_synced_at":"2025-03-26T16:26:42.725Z","etag":null,"topics":["libav"],"latest_commit_sha":null,"homepage":"https://stackoverflow.com/questions/77096790/why-c-app-fail-because-of-shared-library","language":"C","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"apache-2.0","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/AndreiCherniaev.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2023-09-06T12:30:55.000Z","updated_at":"2024-07-18T07:43:25.000Z","dependencies_parsed_at":"2023-10-04T09:30:00.985Z","dependency_job_id":"eada46ff-65df-4ab8-8b4a-15b1fb2530c4","html_url":"https://github.com/AndreiCherniaev/FFMpeg_MJPEG-transcode-VP9_C_Universe","commit_stats":null,"previous_names":["andreicherniaev/ffmpeg_mjpeg-transcode-vp9_cxx_universe","andreicherniaev/ffmpeg_mjpeg-transcode-vp9_c_universe"],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/AndreiCherniaev/FFMpeg_MJPEG-transcode-VP9_C_Universe","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/AndreiCherniaev%2FFFMpeg_MJPEG-transcode-VP9_C_Universe","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/AndreiCherniaev%2FFFMpeg_MJPEG-transcode-VP9_C_Universe/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/AndreiCherniaev%2FFFMpeg_MJPEG-transcode-VP9_C_Universe/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/AndreiCherniaev%2FFFMpeg_MJPEG-transcode-VP9_C_Universe/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/AndreiCherniaev","download_url":"https://codeload.github.com/AndreiCherniaev/FFMpeg_MJPEG-transcode-VP9_C_Universe/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/AndreiCherniaev%2FFFMpeg_MJPEG-transcode-VP9_C_Universe/sbom","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":270109375,"owners_count":24528789,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","status":"online","status_checked_at":"2025-08-12T02:00:09.011Z","response_time":80,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["libav"],"created_at":"2024-12-04T19:32:23.845Z","updated_at":"2025-08-12T18:06:21.024Z","avatar_url":"https://github.com/AndreiCherniaev.png","language":"C","funding_links":[],"categories":[],"sub_categories":[],"readme":"This is C project that using libav (FFmpeg), build system is cmake. Tested on Ubuntu 23 server.\n\n## Prerequisites\n```bash\nsudo apt install cmake gcc git ninja-build pkg-config\nsudo apt-get install libvpx-dev\n```\n```bash\ngit clone --recurse-submodules -j8 --remote-submodules https://github.com/AndreiCherniaev/FFMpeg_MJPEG-transcode-VP9_C_Universe.git \u0026\u0026 cd FFMpeg_MJPEG-transcode-VP9_C_Universe\n```\n## Build FFmpeg\nNext step is about how [build](https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu#FFmpeg) FFmpeg\n```bash\nFFMpeg_MJPEG-transcode-VP9_C_Universe$ FFMpeg_themself/build_FFMpeg.sh\n```\n## Build C example\nBuild example\n```bash\nFFMpeg_MJPEG-transcode-VP9_C_Universe$ cmake -G Ninja -DCMAKE_BUILD_TYPE:STRING=Debug -S myExample/src/ -B myExample/build-host/ --fresh\nFFMpeg_MJPEG-transcode-VP9_C_Universe$ ninja -j16 -C myExample/build-host/\n```\nBefore run example we need copy input video to build folder\n```bash\nFFMpeg_MJPEG-transcode-VP9_C_Universe$ cp myExample/input.yuvj422p myExample/build-host\n```\nBefore start we should be in folder with input.yuvj422p video file. If no then \"Cannot open input file Segmentation fault (core dumped)\". LD_LIBRARY_PATH should be `/home/username/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib` where \"username\" is current user's name. This is universal code to run example\n```bash\nFFMpeg_MJPEG-transcode-VP9_C_Universe$ cd myExample/build-host/\nFFMpeg_MJPEG-transcode-VP9_C_Universe/myExample/build-host$ LD_LIBRARY_PATH=${PWD}/../../FFMpeg_themself/FFmpeg_build/lib ./myExample\n```\n## Run without LD_LIBRARY_PATH\nThis step is optional. If you want to run example without LD_LIBRARY_PATH then you should tell to the operating system about new locations of shared libraries.\n```bash\nFFMpeg_MJPEG-transcode-VP9_C_Universe$ sudo bash -c 'cat \u003c\u003cEOF \u003e /etc/ld.so.conf.d/myFFMpeg.conf\n#My path to my FFMpeg build\n#see details https://github.com/AndreiCherniaev/FFMpeg_MJPEG-transcode-VP9_C_Universe\n${PWD}/FFMpeg_themself/FFmpeg_build/lib\nEOF'\nsudo ldconfig -v\n```\nNow we can run example as usual\n```bash\n./myExample\n```\n## Synthesize MJPEG video\ninput.yuvj422p video I plan use as input to test my C example. This step is optional, you can use myExample/input.yuvj422p This step is if you want to synthesize video again.\n```bash\nFFMpeg_MJPEG-transcode-VP9_C_Universe$ FFMpeg_themself/bin/ffmpeg -y -f lavfi -i testsrc=size=1280x720:rate=1:duration=10 -vcodec mjpeg -pix_fmt yuvj422p -f mjpeg myExample/input.yuvj422p\n```\nIf you get error\n\"FFMpeg_themself/bin/ffmpeg: error while loading shared libraries: libavdevice.so.60: cannot open shared object file: No such file or directory\" then be in root of repo and do\n```bash\nFFMpeg_MJPEG-transcode-VP9_C_Universe$ export LD_LIBRARY_PATH=\"${PWD}/FFMpeg_themself/FFmpeg_build/lib/\"\n```\nAnd try again Synthesize MJPEG video.\n\n## In case of error \nCheck [dependency](https://habr.com/ru/articles/220961/).\n```bash\nchrpath -l myExample/build-host/myExample\n```\nYou do the same and compare my log with yours:\n```bash\nFFMpeg_MJPEG-transcode-VP9_C_Universe$ objdump -p myExample/build-host/myExample | grep NEEDE\n  NEEDED               libavcodec.so.60\n  NEEDED               libavutil.so.58\n  NEEDED               libavformat.so.60\n  NEEDED               libavfilter.so.9\n  NEEDED               libc.so.6\n  \nldd myExample/build-host/myExample\n\tlinux-vdso.so.1 (0x00007ffc8c9f9000)\n\tlibavcodec.so.60 =\u003e /home/q/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libavcodec.so.60 (0x00007ff1cfe00000)\n\tlibavutil.so.58 =\u003e /home/q/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libavutil.so.58 (0x00007ff1cec00000)\n\tlibavformat.so.60 =\u003e /home/q/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libavformat.so.60 (0x00007ff1ce800000)\n\tlibavfilter.so.9 =\u003e /home/q/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libavfilter.so.9 (0x00007ff1ce400000)\n\tlibc.so.6 =\u003e /lib/x86_64-linux-gnu/libc.so.6 (0x00007ff1ce000000)\n\tlibswresample.so.4 =\u003e /home/q/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libswresample.so.4 (0x00007ff1d0fc7000)\n\tlibvpx.so.7 =\u003e /lib/x86_64-linux-gnu/libvpx.so.7 (0x00007ff1cdc00000)\n\tlibm.so.6 =\u003e /lib/x86_64-linux-gnu/libm.so.6 (0x00007ff1cfd17000)\n\tlibswscale.so.7 =\u003e /home/q/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libswscale.so.7 (0x00007ff1ceb89000)\n\t/lib64/ld-linux-x86-64.so.2 (0x00007ff1d0ff1000)\n\t\n  \nobjdump -p ~/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libavcodec.so | grep NEEDE\n  NEEDED               libswresample.so.4\n  NEEDED               libavutil.so.58\n  NEEDED               libvpx.so.7\n  NEEDED               libm.so.6\n  NEEDED               libc.so.6\n\nldd ~/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libavcodec.so\n\tlinux-vdso.so.1 (0x00007ffc6612f000)\n\tlibswresample.so.4 =\u003e /home/q/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libswresample.so.4 (0x00007f6a3eee0000)\n\tlibavutil.so.58 =\u003e /home/q/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libavutil.so.58 (0x00007f6a3ca00000)\n\tlibvpx.so.7 =\u003e /lib/x86_64-linux-gnu/libvpx.so.7 (0x00007f6a3c600000)\n\tlibm.so.6 =\u003e /lib/x86_64-linux-gnu/libm.so.6 (0x00007f6a3edf7000)\n\tlibc.so.6 =\u003e /lib/x86_64-linux-gnu/libc.so.6 (0x00007f6a3c200000)\n\t/lib64/ld-linux-x86-64.so.2 (0x00007f6a3ef00000)\n\n\nobjdump -p ~/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libavdevice.so | grep NEEDE\n  NEEDED               libavfilter.so.9\n  NEEDED               libavformat.so.60\n  NEEDED               libavcodec.so.60\n  NEEDED               libavutil.so.58\n  NEEDED               libc.so.6\n  \nldd ~/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libavdevice.so\n\tlinux-vdso.so.1 (0x00007fffe79ee000)\n\tlibavfilter.so.9 =\u003e /home/q/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libavfilter.so.9 (0x00007f8db2800000)\n\tlibavformat.so.60 =\u003e /home/q/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libavformat.so.60 (0x00007f8db2400000)\n\tlibavcodec.so.60 =\u003e /home/q/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libavcodec.so.60 (0x00007f8db1200000)\n\tlibavutil.so.58 =\u003e /home/q/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libavutil.so.58 (0x00007f8db0000000)\n\tlibc.so.6 =\u003e /lib/x86_64-linux-gnu/libc.so.6 (0x00007f8dafc00000)\n\tlibswscale.so.7 =\u003e /home/q/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libswscale.so.7 (0x00007f8db2789000)\n\tlibswresample.so.4 =\u003e /home/q/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libswresample.so.4 (0x00007f8db2c0d000)\n\tlibm.so.6 =\u003e /lib/x86_64-linux-gnu/libm.so.6 (0x00007f8db26a0000)\n\tlibvpx.so.7 =\u003e /lib/x86_64-linux-gnu/libvpx.so.7 (0x00007f8daf800000)\n\t/lib64/ld-linux-x86-64.so.2 (0x00007f8db2c40000)\n\n\nobjdump -p ~/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libavfilter.so | grep NEEDE\n  NEEDED               libswscale.so.7\n  NEEDED               libavformat.so.60\n  NEEDED               libavcodec.so.60\n  NEEDED               libswresample.so.4\n  NEEDED               libavutil.so.58\n  NEEDED               libm.so.6\n  NEEDED               libc.so.6\n  \nldd ~/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libavfilter.so\n\tlinux-vdso.so.1 (0x00007ffd34fe1000)\n\tlibswscale.so.7 =\u003e /home/q/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libswscale.so.7 (0x00007fc76863c000)\n\tlibavformat.so.60 =\u003e /home/q/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libavformat.so.60 (0x00007fc767e00000)\n\tlibavcodec.so.60 =\u003e /home/q/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libavcodec.so.60 (0x00007fc766c00000)\n\tlibswresample.so.4 =\u003e /home/q/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libswresample.so.4 (0x00007fc768623000)\n\tlibavutil.so.58 =\u003e /home/q/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libavutil.so.58 (0x00007fc765a00000)\n\tlibm.so.6 =\u003e /lib/x86_64-linux-gnu/libm.so.6 (0x00007fc768117000)\n\tlibc.so.6 =\u003e /lib/x86_64-linux-gnu/libc.so.6 (0x00007fc765600000)\n\tlibvpx.so.7 =\u003e /lib/x86_64-linux-gnu/libvpx.so.7 (0x00007fc765200000)\n\t/lib64/ld-linux-x86-64.so.2 (0x00007fc7686ba000)\n\n\nobjdump -p ~/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libavformat.so | grep NEEDE\n  NEEDED               libavcodec.so.60\n  NEEDED               libavutil.so.58\n  NEEDED               libm.so.6\n  NEEDED               libc.so.6\n  \nldd ~/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libavformat.so\n\tlinux-vdso.so.1 (0x00007fffad7ec000)\n\tlibavcodec.so.60 =\u003e /home/q/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libavcodec.so.60 (0x00007f4498600000)\n\tlibavutil.so.58 =\u003e /home/q/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libavutil.so.58 (0x00007f4497400000)\n\tlibm.so.6 =\u003e /lib/x86_64-linux-gnu/libm.so.6 (0x00007f4498517000)\n\tlibc.so.6 =\u003e /lib/x86_64-linux-gnu/libc.so.6 (0x00007f4497000000)\n\tlibswresample.so.4 =\u003e /home/q/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libswresample.so.4 (0x00007f4499b3b000)\n\tlibvpx.so.7 =\u003e /lib/x86_64-linux-gnu/libvpx.so.7 (0x00007f4496c00000)\n\t/lib64/ld-linux-x86-64.so.2 (0x00007f4499b5b000)\n\n\nobjdump -p ~/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libavutil.so | grep NEEDE\n  NEEDED               libm.so.6\n  NEEDED               libc.so.6\n  \nldd ~/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libavutil.so\n\tlinux-vdso.so.1 (0x00007ffd821fd000)\n\tlibm.so.6 =\u003e /lib/x86_64-linux-gnu/libm.so.6 (0x00007faa92d17000)\n\tlibc.so.6 =\u003e /lib/x86_64-linux-gnu/libc.so.6 (0x00007faa92a00000)\n\t/lib64/ld-linux-x86-64.so.2 (0x00007faa93f46000)\n\n\nobjdump -p ~/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libswresample.so | grep NEEDE\n  NEEDED               libavutil.so.58\n  NEEDED               libm.so.6\n  NEEDED               libc.so.6\n  \nldd ~/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libswresample.so\n\tlinux-vdso.so.1 (0x00007ffd85927000)\n\tlibavutil.so.58 =\u003e /home/q/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libavutil.so.58 (0x00007f416b200000)\n\tlibm.so.6 =\u003e /lib/x86_64-linux-gnu/libm.so.6 (0x00007f416b117000)\n\tlibc.so.6 =\u003e /lib/x86_64-linux-gnu/libc.so.6 (0x00007f416ae00000)\n\t/lib64/ld-linux-x86-64.so.2 (0x00007f416c387000)\n\n\nobjdump -p ~/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libswscale.so | grep NEEDE\n  NEEDED               libavutil.so.58\n  NEEDED               libm.so.6\n  NEEDED               libc.so.6\n  \nldd ~/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libswscale.so\n\tlinux-vdso.so.1 (0x00007fff5e561000)\n\tlibavutil.so.58 =\u003e /home/q/FFMpeg_MJPEG-transcode-VP9_C_Universe/FFMpeg_themself/FFmpeg_build/lib/libavutil.so.58 (0x00007f574c000000)\n\tlibm.so.6 =\u003e /lib/x86_64-linux-gnu/libm.so.6 (0x00007f574d0dc000)\n\tlibc.so.6 =\u003e /lib/x86_64-linux-gnu/libc.so.6 (0x00007f574bc00000)\n\t/lib64/ld-linux-x86-64.so.2 (0x00007f574d243000)\n```\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fandreicherniaev%2Fffmpeg_mjpeg-transcode-vp9_c_universe","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fandreicherniaev%2Fffmpeg_mjpeg-transcode-vp9_c_universe","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fandreicherniaev%2Fffmpeg_mjpeg-transcode-vp9_c_universe/lists"}