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Autres articles (100)
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MediaSPIP 0.1 Beta version
25 avril 2011, parMediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
The zip file provided here only contains the sources of MediaSPIP in its standalone version.
To get a working installation, you must manually install all-software dependencies on the server.
If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...) -
Multilang : améliorer l’interface pour les blocs multilingues
18 février 2011, parMultilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela. -
Organiser par catégorie
17 mai 2013, parDans MédiaSPIP, une rubrique a 2 noms : catégorie et rubrique.
Les différents documents stockés dans MédiaSPIP peuvent être rangés dans différentes catégories. On peut créer une catégorie en cliquant sur "publier une catégorie" dans le menu publier en haut à droite ( après authentification ). Une catégorie peut être rangée dans une autre catégorie aussi ce qui fait qu’on peut construire une arborescence de catégories.
Lors de la publication prochaine d’un document, la nouvelle catégorie créée sera proposée (...)
Sur d’autres sites (13602)
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ffmpeg -i desktop Output file does not contain any stream [closed]
29 novembre 2024, par AntonioI'm trying to screen record a remote Windows VM machine which I'm accessing through ssh. I'm executing this command
ffmpeg -f gdigrab -framerate 30 -i desktop -t 00:00:10 output.mp4
which is returning the following error :

ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers
 built with gcc 14.2.0 (Rev1, Built by MSYS2 project)
 configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --en
able-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-zlib --enable-libsrt --enable-libss
h --enable-libzmq --enable-avisynth --enable-sdl2 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-lib
aom --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-libfreetype --enable-libfribidi --enabl
e-libharfbuzz --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-dxva2
--enable-d3d11va --enable-d3d12va --enable-ffnvcodec --enable-libvpl --enable-nvdec --enable-nvenc --enable-vaapi --enable-libgme
--enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvo-amrwbenc --enable-libgsm --en
able-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-librubberband
 libavutil 59. 39.100 / 59. 39.100
 libavcodec 61. 19.100 / 61. 19.100
 libavformat 61. 7.100 / 61. 7.100
 libavdevice 61. 3.100 / 61. 3.100
 libavfilter 10. 4.100 / 10. 4.100
 libswscale 8. 3.100 / 8. 3.100
 libswresample 5. 3.100 / 5. 3.100
 libpostproc 58. 3.100 / 58. 3.100
[gdigrab @ 000001a87f3af600] Capturing whole desktop as 1024x768x32 at (0,0)
[gdigrab @ 000001a87f3af600] Failed to capture image (error 5)
[gdigrab @ 000001a87f3af600] Could not find codec parameters for stream 0 (Video: bmp, none, 754987 kb/s): unspecified size
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options
Input #0, gdigrab, from 'desktop':
 Duration: N/A, bitrate: 754987 kb/s
 Stream #0:0: Video: bmp, none, 754987 kb/s, 30 fps, 1000k tbr, 1000k tbn
Output #0, mp4, to 'output.mp4':
[out#0/mp4 @ 000001a87f3aeec0] Output file does not contain any stream
Error opening output file output.mp4.
Error opening output files: Invalid argument



If I take a remote desktop connection and use the same command, then it works perfectly.


I've also tried running
ffmpeg.exe -f lavfi -i color=c=black:s=800x600:r=30:d=60 out.mp4
which records something but it's just a black screen.

Does anyone have any idea what could be happening ? I'm clueless at this point as I haven't been able to find more info online.


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ffmpeg chains parameters and options while being used in a loop
10 janvier 2024, par Simon NazarenkoI got a code that generates videos from scratch (got gifs, captions and audio). It works amazing when done once, however, when put in a loop and it should create more than 1 video it freezes being caused by memory leak. Upon investigation I realized that ffmpeg (v1.1.0) chains the loop iterations carrying the parameters and options from the first iteration to the second. It then breaks (overwrites) the first video and infinitely writes the second.


This is my dependency


const ffmpeg = require("fluent-ffmpeg")()
 .setFfprobePath(ffprobe.path)
 .setFfmpegPath(ffmpegInstaller.path)



It looks like this


async function convertGifToVideo(
 gifFile,
 audioFile,
 subtitlesFile,
 tempDirectory
) {
 return new Promise((resolve, reject) => {
 const outputFile = `${tempDirectory}/video_${Date.now()}.mp4`
 
 ffmpeg
 .input(gifFile)
 .inputFormat("gif")
 .inputOptions("-stream_loop -1")
 .input(audioFile)
 .outputOptions("-shortest")
 .outputOptions(`-vf subtitles=${subtitlesFile}`)
 .outputOptions("-report")
 .output(outputFile)
 .on("end", () => {
 console.log(`Combined ${gifFile} and ${audioFile} into ${outputFile}`)
 resolve(outputFile)
 })
 .on("error", (err, stdout, stderr) => {
 console.error("Error combining GIF and audio:", err)
 console.error("ffmpeg stdout:", stdout)
 console.error("ffmpeg stderr:", stderr)
 reject(err)
 })
 .run()
 })
}



And it's called in a loop


for (const key in script) {
 if (script.hasOwnProperty(key)) {
 ...stuff

 const videoFileName = await convertGifToVideo(
 gifFileName,
 audioFileName,
 subtitlesFileName,
 tempDirectory
 )
 }
 }



Here is a piece of log from the first video generation




ffmpeg started on 2024-01-10 at 02:58:52
Report written to "ffmpeg-20240110-025852.log"
Command line :
/home/simon/Documents/AFYTUBE/node_modules/@ffmpeg-installer/linux-x64/ffmpeg -f gif -stream_loop -1 -i ./temp/gif_funny_frogs.gif -i ./temp/funny_frogs.mp3 -y -shortest -vf "subtitles=./temp/funny_frogs.srt" -report ./temp/video_1704880732780.mp4




Here is a piece of log from the second one




/home/simon/Documents/AFYTUBE/node_modules/@ffmpeg-installer/linux-x64/ffmpeg -f gif -stream_loop -1 -i ./temp/gif_funny_frogs.gif -i ./temp/funny_frogs.mp3 -f gif -stream_loop -1 -i ./temp/gif_leg_exercises.gif -i ./temp/leg_exercises.mp3 -y -shortest -vf "subtitles=./temp/funny_frogs.srt" -report -shortest -vf "subtitles=./temp/leg_exercises.srt" -report ./temp/video_1704880732780.mp4 ./temp/video_1704880750879.mp4




Any ideas what I am doing wrong ?


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swscale/x86/input.asm : add x86-optimized planer rgb2yuv functions
24 novembre 2021, par Mark Reidswscale/x86/input.asm : add x86-optimized planer rgb2yuv functions
sse2 only operates on 2 lanes per loop for to_y and to_uv functions, due
to the lack of pmulld instruction. Emulating pmulld with 2 pmuludq and shuffles
proved too costly and made to_uv functions slower then the c implementation.For to_y on sse2 only float functions are generated,
I was are not able outperform the c implementation on the integer pixel formats.For to_a on see4 only the float functions are generated.
sse2 and sse4 generated nearly identical performing code on integer pixel formats,
so only sse2/avx2 versions are generated.planar_gbrp_to_y_512_c : 1197.5
planar_gbrp_to_y_512_sse4 : 444.5
planar_gbrp_to_y_512_avx2 : 287.5
planar_gbrap_to_y_512_c : 1204.5
planar_gbrap_to_y_512_sse4 : 447.5
planar_gbrap_to_y_512_avx2 : 289.5
planar_gbrp9be_to_y_512_c : 1380.0
planar_gbrp9be_to_y_512_sse4 : 543.5
planar_gbrp9be_to_y_512_avx2 : 340.0
planar_gbrp9le_to_y_512_c : 1200.5
planar_gbrp9le_to_y_512_sse4 : 442.0
planar_gbrp9le_to_y_512_avx2 : 282.0
planar_gbrp10be_to_y_512_c : 1378.5
planar_gbrp10be_to_y_512_sse4 : 544.0
planar_gbrp10be_to_y_512_avx2 : 337.5
planar_gbrp10le_to_y_512_c : 1200.0
planar_gbrp10le_to_y_512_sse4 : 448.0
planar_gbrp10le_to_y_512_avx2 : 285.5
planar_gbrap10be_to_y_512_c : 1380.0
planar_gbrap10be_to_y_512_sse4 : 542.0
planar_gbrap10be_to_y_512_avx2 : 340.5
planar_gbrap10le_to_y_512_c : 1199.0
planar_gbrap10le_to_y_512_sse4 : 446.0
planar_gbrap10le_to_y_512_avx2 : 289.5
planar_gbrp12be_to_y_512_c : 10563.0
planar_gbrp12be_to_y_512_sse4 : 542.5
planar_gbrp12be_to_y_512_avx2 : 339.0
planar_gbrp12le_to_y_512_c : 1201.0
planar_gbrp12le_to_y_512_sse4 : 440.5
planar_gbrp12le_to_y_512_avx2 : 286.0
planar_gbrap12be_to_y_512_c : 1701.5
planar_gbrap12be_to_y_512_sse4 : 917.0
planar_gbrap12be_to_y_512_avx2 : 338.5
planar_gbrap12le_to_y_512_c : 1201.0
planar_gbrap12le_to_y_512_sse4 : 444.5
planar_gbrap12le_to_y_512_avx2 : 288.0
planar_gbrp14be_to_y_512_c : 1370.5
planar_gbrp14be_to_y_512_sse4 : 545.0
planar_gbrp14be_to_y_512_avx2 : 338.5
planar_gbrp14le_to_y_512_c : 1199.0
planar_gbrp14le_to_y_512_sse4 : 444.0
planar_gbrp14le_to_y_512_avx2 : 279.5
planar_gbrp16be_to_y_512_c : 1364.0
planar_gbrp16be_to_y_512_sse4 : 544.5
planar_gbrp16be_to_y_512_avx2 : 339.5
planar_gbrp16le_to_y_512_c : 1201.0
planar_gbrp16le_to_y_512_sse4 : 445.5
planar_gbrp16le_to_y_512_avx2 : 280.5
planar_gbrap16be_to_y_512_c : 1377.0
planar_gbrap16be_to_y_512_sse4 : 545.0
planar_gbrap16be_to_y_512_avx2 : 338.5
planar_gbrap16le_to_y_512_c : 1201.0
planar_gbrap16le_to_y_512_sse4 : 442.0
planar_gbrap16le_to_y_512_avx2 : 279.0
planar_gbrpf32be_to_y_512_c : 4113.0
planar_gbrpf32be_to_y_512_sse2 : 2438.0
planar_gbrpf32be_to_y_512_sse4 : 1068.0
planar_gbrpf32be_to_y_512_avx2 : 904.5
planar_gbrpf32le_to_y_512_c : 3818.5
planar_gbrpf32le_to_y_512_sse2 : 2024.5
planar_gbrpf32le_to_y_512_sse4 : 1241.5
planar_gbrpf32le_to_y_512_avx2 : 657.0
planar_gbrapf32be_to_y_512_c : 3707.0
planar_gbrapf32be_to_y_512_sse2 : 2444.0
planar_gbrapf32be_to_y_512_sse4 : 1077.0
planar_gbrapf32be_to_y_512_avx2 : 909.0
planar_gbrapf32le_to_y_512_c : 3822.0
planar_gbrapf32le_to_y_512_sse2 : 2024.5
planar_gbrapf32le_to_y_512_sse4 : 1176.0
planar_gbrapf32le_to_y_512_avx2 : 658.5planar_gbrp_to_uv_512_c : 2325.8
planar_gbrp_to_uv_512_sse2 : 1726.8
planar_gbrp_to_uv_512_sse4 : 771.8
planar_gbrp_to_uv_512_avx2 : 506.8
planar_gbrap_to_uv_512_c : 2281.8
planar_gbrap_to_uv_512_sse2 : 1726.3
planar_gbrap_to_uv_512_sse4 : 768.3
planar_gbrap_to_uv_512_avx2 : 496.3
planar_gbrp9be_to_uv_512_c : 2336.8
planar_gbrp9be_to_uv_512_sse2 : 1924.8
planar_gbrp9be_to_uv_512_sse4 : 852.3
planar_gbrp9be_to_uv_512_avx2 : 552.8
planar_gbrp9le_to_uv_512_c : 2270.3
planar_gbrp9le_to_uv_512_sse2 : 1512.3
planar_gbrp9le_to_uv_512_sse4 : 764.3
planar_gbrp9le_to_uv_512_avx2 : 491.3
planar_gbrp10be_to_uv_512_c : 2281.8
planar_gbrp10be_to_uv_512_sse2 : 1917.8
planar_gbrp10be_to_uv_512_sse4 : 855.3
planar_gbrp10be_to_uv_512_avx2 : 541.3
planar_gbrp10le_to_uv_512_c : 2269.8
planar_gbrp10le_to_uv_512_sse2 : 1515.3
planar_gbrp10le_to_uv_512_sse4 : 759.8
planar_gbrp10le_to_uv_512_avx2 : 487.8
planar_gbrap10be_to_uv_512_c : 2382.3
planar_gbrap10be_to_uv_512_sse2 : 1924.8
planar_gbrap10be_to_uv_512_sse4 : 855.3
planar_gbrap10be_to_uv_512_avx2 : 540.8
planar_gbrap10le_to_uv_512_c : 2382.3
planar_gbrap10le_to_uv_512_sse2 : 1512.3
planar_gbrap10le_to_uv_512_sse4 : 759.3
planar_gbrap10le_to_uv_512_avx2 : 484.8
planar_gbrp12be_to_uv_512_c : 2283.8
planar_gbrp12be_to_uv_512_sse2 : 1936.8
planar_gbrp12be_to_uv_512_sse4 : 858.3
planar_gbrp12be_to_uv_512_avx2 : 541.3
planar_gbrp12le_to_uv_512_c : 2278.8
planar_gbrp12le_to_uv_512_sse2 : 1507.3
planar_gbrp12le_to_uv_512_sse4 : 760.3
planar_gbrp12le_to_uv_512_avx2 : 485.8
planar_gbrap12be_to_uv_512_c : 2385.3
planar_gbrap12be_to_uv_512_sse2 : 1927.8
planar_gbrap12be_to_uv_512_sse4 : 855.3
planar_gbrap12be_to_uv_512_avx2 : 539.8
planar_gbrap12le_to_uv_512_c : 2377.3
planar_gbrap12le_to_uv_512_sse2 : 1516.3
planar_gbrap12le_to_uv_512_sse4 : 759.3
planar_gbrap12le_to_uv_512_avx2 : 484.8
planar_gbrp14be_to_uv_512_c : 2283.8
planar_gbrp14be_to_uv_512_sse2 : 1935.3
planar_gbrp14be_to_uv_512_sse4 : 852.3
planar_gbrp14be_to_uv_512_avx2 : 540.3
planar_gbrp14le_to_uv_512_c : 2276.8
planar_gbrp14le_to_uv_512_sse2 : 1514.8
planar_gbrp14le_to_uv_512_sse4 : 762.3
planar_gbrp14le_to_uv_512_avx2 : 484.8
planar_gbrp16be_to_uv_512_c : 2383.3
planar_gbrp16be_to_uv_512_sse2 : 1881.8
planar_gbrp16be_to_uv_512_sse4 : 852.3
planar_gbrp16be_to_uv_512_avx2 : 541.8
planar_gbrp16le_to_uv_512_c : 2378.3
planar_gbrp16le_to_uv_512_sse2 : 1476.8
planar_gbrp16le_to_uv_512_sse4 : 765.3
planar_gbrp16le_to_uv_512_avx2 : 485.8
planar_gbrap16be_to_uv_512_c : 2382.3
planar_gbrap16be_to_uv_512_sse2 : 1886.3
planar_gbrap16be_to_uv_512_sse4 : 853.8
planar_gbrap16be_to_uv_512_avx2 : 550.8
planar_gbrap16le_to_uv_512_c : 2381.8
planar_gbrap16le_to_uv_512_sse2 : 1488.3
planar_gbrap16le_to_uv_512_sse4 : 765.3
planar_gbrap16le_to_uv_512_avx2 : 491.8
planar_gbrpf32be_to_uv_512_c : 4863.0
planar_gbrpf32be_to_uv_512_sse2 : 3347.5
planar_gbrpf32be_to_uv_512_sse4 : 1800.0
planar_gbrpf32be_to_uv_512_avx2 : 1199.0
planar_gbrpf32le_to_uv_512_c : 4725.0
planar_gbrpf32le_to_uv_512_sse2 : 2753.0
planar_gbrpf32le_to_uv_512_sse4 : 1474.5
planar_gbrpf32le_to_uv_512_avx2 : 927.5
planar_gbrapf32be_to_uv_512_c : 4859.0
planar_gbrapf32be_to_uv_512_sse2 : 3269.0
planar_gbrapf32be_to_uv_512_sse4 : 1802.0
planar_gbrapf32be_to_uv_512_avx2 : 1201.5
planar_gbrapf32le_to_uv_512_c : 6338.0
planar_gbrapf32le_to_uv_512_sse2 : 2756.5
planar_gbrapf32le_to_uv_512_sse4 : 1476.0
planar_gbrapf32le_to_uv_512_avx2 : 908.5planar_gbrap_to_a_512_c : 383.3
planar_gbrap_to_a_512_sse2 : 66.8
planar_gbrap_to_a_512_avx2 : 43.8
planar_gbrap10be_to_a_512_c : 601.8
planar_gbrap10be_to_a_512_sse2 : 86.3
planar_gbrap10be_to_a_512_avx2 : 34.8
planar_gbrap10le_to_a_512_c : 602.3
planar_gbrap10le_to_a_512_sse2 : 48.8
planar_gbrap10le_to_a_512_avx2 : 31.3
planar_gbrap12be_to_a_512_c : 601.8
planar_gbrap12be_to_a_512_sse2 : 111.8
planar_gbrap12be_to_a_512_avx2 : 41.3
planar_gbrap12le_to_a_512_c : 385.8
planar_gbrap12le_to_a_512_sse2 : 75.3
planar_gbrap12le_to_a_512_avx2 : 39.8
planar_gbrap16be_to_a_512_c : 386.8
planar_gbrap16be_to_a_512_sse2 : 79.8
planar_gbrap16be_to_a_512_avx2 : 31.3
planar_gbrap16le_to_a_512_c : 600.3
planar_gbrap16le_to_a_512_sse2 : 40.3
planar_gbrap16le_to_a_512_avx2 : 30.3
planar_gbrapf32be_to_a_512_c : 1148.8
planar_gbrapf32be_to_a_512_sse2 : 611.3
planar_gbrapf32be_to_a_512_sse4 : 234.8
planar_gbrapf32be_to_a_512_avx2 : 183.3
planar_gbrapf32le_to_a_512_c : 851.3
planar_gbrapf32le_to_a_512_sse2 : 263.3
planar_gbrapf32le_to_a_512_sse4 : 199.3
planar_gbrapf32le_to_a_512_avx2 : 156.8Reviewed-by : Paul B Mahol <onemda@gmail.com>
Signed-off-by : James Almer <jamrial@gmail.com>