3 articles

28 mars

Newest 'x264' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/x264

05:10
Incorrect length of video produced with ffmpeg libraries [closed] - ivan.ukr Newest 'x264' Questions - Stack Overflow

I'm writing a C program that takes series of PNG images and converts them into a video. Video consists of the initial black screen and then each of those images, shown for the same constant amount of time, say 200 ms. I'm using libx264 as codec and mp4 as output format. I'm compiling my program with GCC 12 on Ubuntu 22.04 LTS. I'm using ffmpeg version from Ubuntu repositories. In order to achieve above behavior I've set time base to 1/5 in the both stream and codec. // assume imageDuration = 200 AVRational timeBase; av_reduce(&timeBase.num, (...)

22:30
How to initialize video decoder with a already decoded frame? - Ragdoll Car Newest 'x264' Questions - Stack Overflow

Let's say I have an FFmpeg video decoder x264 initially initialized with some parameters. I am using C++ in my scenario. In normal conditions we push an encoded I-frame into such decoder and then referencing encoded P-frames. I have a special case where my I-frame is already decoded. So in my case I want to: push already decoded I-frame into my decoder push referencing encoded P-frames into my decoder How can I initialize the decoder state with already decoded I-frame? Currently to bypass these limitations I have to: create a new (...)

14:29
FFMPEG compile with x264 support for Android - Pecana Newest 'x264' Questions - Stack Overflow

I am trying to build ffmpeg extensions for media3 (ExoPlayer) for Android https://github.com/androidx/media/tree/release/libraries/decoder_ffmpeg Using the default settings everything is fine but if I try to add support to libx264 the build failed. I compiled x264 for Android locally and it worked so the .so file for arm64 is present, I added it to the pkg-config with : export PKG_CONFIG_PATH=/build/x264/arm64/lib/pkgconfig:$PKG_CONFIG_PATH but when I try to build ffmpeg with the following command it fails : ./configure \\ --prefix=/build/ffmpeg (...) -- https://github.com/androidx/media/tree/release/libraries/decoder_ffmpeg