libav (or libav*) is the collective name of the FFmpeg libraries: libavcodec, libavformat, libavfilter, libavutil, etc. The name has also been appropriated by the Libav project–a fork of FFmpeg.
Questions tagged [libav]
591 questions
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How do I set the framerate/FPS in an FFmpeg code (C)?
I try to encode single pictures to a .avi video. The goal is to have every picture displayed for a set amount of seconds to create a slide show. I tried my script with 10 pictures and a delay of 1/5 of a second but the output file was not even half…
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Errors while building customised ffmpeg4.1 with opencv
I am trying to build my customised ffmpeg of version 4.1. As we know that ffmpeg4.1 needs libavcodec.so.58 and other related libraries(newest). I have some functions related to opencv in my code such as cvLoadImage and other. I updated the…
geo-freak
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Error parsing audio files with more than one stream - ffmpeg
I am working on a small application in cpp that will convert audio, apply filters and generate waveform using ffmpeg. I am using ffmpeg as a library and not using ffmpeg binary.
My reference was from here.…
Andrews
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Replace Bento4 with libav / ffmpeg
We use Bento4 - a really well designed SDK - to demux mp4 files in .mov containers. Decoding is done by an own codec, so only the raw (intraframe) samples are needed. By now this works pretty straightforward
AP4_Track *test_videoTrack =…
Heiner
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Libav hls parse manifest to get access to variants
It is possible to parse master playlist to get and store all the url’s associated with the variants, using libav, to make downloads according to the variant of my choice. Thanks, all help is welcome
luxor
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Converting RGB frames to YUV420P using FFmpeg/C++
I tried a code based on this tutorial. What this does is it writes first 5 frames of a video into memory in RGB format. I need to convert these RGB frames to YUV420P format so that I can pass them to YUV420P encoder. I tried using the sws_scale but…
learner
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