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Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
Type : Texte
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Sur d’autres sites (11756)
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FFMPEG, macOS Catalina : "ffmpeg stderr : /private/tmp/com.apple.launchd.ID/org.macosforge.xquartz:0 : Operation not supported on socket"
11 février 2021, par Bogdan SlyusarenkoI'm trying to record selenium test run with FFMPEG, for automation testing of web extensions (selenium+js/ts).
FFMPEG initiated by command :


const { spawn } = require("child_process");
 ffmpeg = spawn("ffmpeg", [
 "-x265-params",
 "-f",
 "xcbgrab", 
 "-video_size",
 "1280x1024", 
 "-i",
 process.env.DISPLAY, // "/private/tmp/com.apple.launchd.ID/org.macosforge.xquartz:0"
 "-loglevel",
 "debug", 
 "-y", 
 "-pix_fmt",
 "yuv420p",
 videoPath, 
 ]);



Return constantly error,related to process.DISPLAY, I'm not sure why it's so :


ffmpeg stderr: /private/tmp/com.apple.launchd.W851FkeNXz/org.macosforge.xquartz:0: Operation not supported on socket



Full debug login is :


ffmpeg stderr: ffmpeg version 4.3.1 Copyright (c) 2000-2020 the FFmpeg developers
ffmpeg stderr: built with Apple clang version 12.0.0 (clang-1200.0.32.28)
ffmpeg stderr: configuration: --prefix=/usr/local/Cellar/ffmpeg/4.3.1_9 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr --enable-videotoolbox --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack
ffmpeg stderr: libavutil 56. 51.100 / 56. 51.100
ffmpeg stderr: libavcodec 58. 91.100 / 58. 91.100
ffmpeg stderr: libavformat 58. 45.100 / 58. 45.100
ffmpeg stderr: libavdevice 58. 10.100 / 58. 10.100
ffmpeg stderr: libavfilter 7. 85.100 / 7. 85.100
ffmpeg stderr: libavresample 4. 0. 0 / 4. 0. 0
ffmpeg stderr: libswscale 5. 7.100 / 5. 7.100
ffmpeg stderr: libswresample 3. 7.100 / 3. 7.100
ffmpeg stderr: libpostproc 55. 7.100 / 55. 7.100
ffmpeg stderr: Splitting the commandline.
ffmpeg stderr: Reading option '-x265-params' ...
ffmpeg stderr: matched as AVOption 'x265-params' with argument '-f'.
ffmpeg stderr: Reading option 'xcbgrab' ...
ffmpeg stderr: matched as output url.
ffmpeg stderr: Reading option '-video_size' ...
ffmpeg stderr: matched as AVOption 'video_size' with argument '1280x1024'.
ffmpeg stderr: Reading option '-i' ... matched as input url with argument '/private/tmp/com.apple.launchd.W851FkeNXz/org.macosforge.xquartz:0'.
ffmpeg stderr: Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'debug'.
ffmpeg stderr: Reading option '-y' ...
ffmpeg stderr: matched as option 'y' (overwrite output files) with argument '1'.
ffmpeg stderr: Reading option '-pix_fmt' ... matched as option 'pix_fmt' (set pixel format) with argument 'yuv420p'.
ffmpeg stderr: Reading option '/Volumes/MacHD2/Upprojects/TEST/log/Checkout-Google.com-Search-on-Google.mp4' ... matched as output url.
ffmpeg stderr: Finished splitting the commandline.
ffmpeg stderr: Parsing a group of options: global .
ffmpeg stderr: Applying option loglevel (set logging level) with argument debug.
ffmpeg stderr: Applying option y (overwrite output files) with argument 1.
ffmpeg stderr: Successfully parsed a group of options.
ffmpeg stderr: Parsing a group of options: input url /private/tmp/com.apple.launchd.W851FkeNXz/org.macosforge.xquartz:0.
ffmpeg stderr: Successfully parsed a group of options.
ffmpeg stderr: Opening an input file: /private/tmp/com.apple.launchd.W851FkeNXz/org.macosforge.xquartz:0.
ffmpeg stderr: [NULL @ 0x7fcf80016800] Opening '/private/tmp/com.apple.launchd.W851FkeNXz/org.macosforge.xquartz:0' for reading
ffmpeg stderr: [file @ 0x7fcf7f507a00] Setting default whitelist 'file,crypto,data'
ffmpeg stderr: /private/tmp/com.apple.launchd.W851FkeNXz/org.macosforge.xquartz:0: Operation not supported on socket




Any feedback appreciated


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Why does x264 keep giving me "command not found" error on my Mac ? [closed]
2 juillet 2021, par hd-dvdI just installed x264 via Homebrew on my Mac running MacOS 11.4 Big Sur. I'm trying to encode a video but I can't get x264 to run properly.


This is the command I am running in the Terminal :


x264 --bitrate 25000 --preset veryslow --bluray-compat --tune film --vbv-maxrate 40000 --vbv-bufsize 30000 --level 4.1 --keyint 30 --open-gop --slices 4 --fake-interlaced --colorprim "bt709" --transfer "bt709" --colormatrix "bt709" --sar 1:1 --pass 1 -o out.264 in.mp4


and this is what it outputs :


bash: x264 --bitrate 25000 --preset veryslow: command not found


If I delete the
--preset
part then it just gets hung up on some other part, like--tune
.

I have tried
brew doctor
and there are no errors.

If I just run
x264
then it gives mex264 [error]: No input file. Run x264 --help for a list of options.
so it seems as if x264 is installed. I don't know where to begin troubleshooting this but I'd like to get it to work.

If I simplify the command way down to
x264 -o out.264 in.mp4
then I get :

avs [error]: failed to load avisynth
raw [error]: raw input requires a resolution.
x264 [error]: could not open input file `in.mp4' via any method!



I would greatly appreciate some pointers on how to get this working.


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ffmpeg (IMAGE THUMBNAIL 1 frame) how to "choose" compression quality when we use -vframes 1 (how to do like convert -quality 60....)
25 juillet 2021, par jini• PRE-CONTEXT : with ImageMagick, I'm use to do
convert -quality 60 1.jpg 1.webp
here "quality 60" affect the final size of the output

• CONTEXT : create a poster.webp OR poster.jpg of a movie.mp4


• QUESTION : how can we "achieve" the same compression level choice with ffmpeg when we want 1 frame


• WHAT I TRIED [1] :


ffmpeg -i movie.mp4 -vframes 1 -qmin 0 -qmax 1 0.webp


and
ffmpeg -i movie.mp4 -vframes 1 -qmin 50 -qmax 51 50.webp


==>> both gives the exact same size for the output.


• WHAT I TRIED [2] :


ffmpeg -i movie.mp4 -vframes 1 -b:v 9k bv9k.webp


and
ffmpeg -i movie.mp4 -vframes 1 -b:v 1k bv1k.webp


==>> both gives the exact same size for the output.


what I'm I missing or miss using here ?


Thanks