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SPIP - plugins - embed code - Exemple
2 septembre 2013, par
Mis à jour : Septembre 2013
Langue : français
Type : Image
Autres articles (74)
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Ajouter notes et légendes aux images
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Modification lors de l’ajout d’un média
Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...) -
HTML5 audio and video support
13 avril 2011, parMediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
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De l’upload à la vidéo finale [version standalone]
31 janvier 2010, parLe chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
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Sur d’autres sites (7582)
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avutil : remove deprecated FF_API_PALETTE_HAS_CHANGED
19 février, par James Almeravutil : remove deprecated FF_API_PALETTE_HAS_CHANGED
Deprecated since 2023-05-18.
Signed-off-by : James Almer <jamrial@gmail.com>
- [DH] libavcodec/8bps.c
- [DH] libavcodec/ansi.c
- [DH] libavcodec/bethsoftvideo.c
- [DH] libavcodec/bfi.c
- [DH] libavcodec/bintext.c
- [DH] libavcodec/bmvvideo.c
- [DH] libavcodec/brenderpix.c
- [DH] libavcodec/c93.c
- [DH] libavcodec/cdgraphics.c
- [DH] libavcodec/cdtoons.c
- [DH] libavcodec/cinepak.c
- [DH] libavcodec/dds.c
- [DH] libavcodec/dfa.c
- [DH] libavcodec/dsicinvideo.c
- [DH] libavcodec/dxa.c
- [DH] libavcodec/flicvideo.c
- [DH] libavcodec/gemdec.c
- [DH] libavcodec/idcinvideo.c
- [DH] libavcodec/imx.c
- [DH] libavcodec/interplayvideo.c
- [DH] libavcodec/jvdec.c
- [DH] libavcodec/kmvc.c
- [DH] libavcodec/mscc.c
- [DH] libavcodec/msrle.c
- [DH] libavcodec/mss1.c
- [DH] libavcodec/msvideo1.c
- [DH] libavcodec/pafvideo.c
- [DH] libavcodec/pictordec.c
- [DH] libavcodec/psd.c
- [DH] libavcodec/qdrw.c
- [DH] libavcodec/qpeg.c
- [DH] libavcodec/qtrle.c
- [DH] libavcodec/rawdec.c
- [DH] libavcodec/rscc.c
- [DH] libavcodec/sga.c
- [DH] libavcodec/smacker.c
- [DH] libavcodec/smc.c
- [DH] libavcodec/targa.c
- [DH] libavcodec/tiertexseqv.c
- [DH] libavcodec/tmv.c
- [DH] libavcodec/tscc.c
- [DH] libavcodec/vb.c
- [DH] libavcodec/vqavideo.c
- [DH] libavcodec/yop.c
- [DH] libavutil/frame.c
- [DH] libavutil/frame.h
- [DH] libavutil/version.h
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FFmpeg-command freezes app on NET MAUI Android [closed]
28 septembre 2024, par Christian RöderCheers,


I'm developing a .NET MAUI app where I want to create videos from a list of images.


This is the command :
"-y -f concat -safe 0 -analyzeduration 100M -probesize 50M -i {Path.Combine(basePath, "input.txt")} -vf \"scale=720:1280,setsar=1:1\" -vcodec mpeg4 -pix_fmt yuv420p {outputPath}"


The problem is, my app freezes when the command is executed. I've tried so much await/async/await/Task stuff, it changes nothing. The video ist created anyway...
When I'm using a simple command like "-encoders" everything is fine.


This is the log when creating a video out of three images :


[ffmpeg-kit] ffmpeg version n6.0
[ffmpeg-kit] Copyright (c) 2000-2023 the FFmpeg developers
[ffmpeg-kit] 
[ffmpeg-kit] built with Android (7155654, based on r399163b1) clang version 11.0.5 (https://android.googlesource.com/toolchain/llvm-project 87f1315dfbea7c137aa2e6d362dbb457e388158d)
[ffmpeg-kit] configuration: --cross-prefix=aarch64-linux-android- --sysroot=/Users/sue/Library/Android/sdk/ndk/22.1.7171670/toolchains/llvm/prebuilt/darwin-x86_64/sysroot --prefix=/Users/sue/Projects/arthenica/ffmpeg-kit/prebuilt/android-arm64/ffmpeg --pkg-config=/opt/homebrew/bin/pkg-config --enable-version3 --arch=aarch64 --cpu=armv8-a --target-os=android --enable-neon --enable-asm --enable-inline-asm --ar=aarch64-linux-android-ar --cc=aarch64-linux-android24-clang --cxx=aarch64-linux-android24-clang++ --ranlib=aarch64-linux-android-ranlib --strip=aarch64-linux-android-strip --nm=aarch64-linux-android-nm --extra-libs='-L/Users/sue/Projects/arthenica/ffmpeg-kit/prebuilt/android-arm64/cpu-features/lib -lndk_compat' --disable-autodetect --enable-cross-compile --enable-pic --enable-jni --enable-optimizations --enable-swscale --disable-static --enable-shared --enable-pthreads --enable-v4l2-m2m --disable-outdev=fbdev --disable-indev=fbdev --enable-small --disable-xmm-clobber-test --disable-debug --enable-lto --disable-neon-clobber-test --disable-programs --disable-postproc --disable-doc --disable-htmlpages --disable-manpages --disable-podpages --disable-txtpages --disable-sndio --disable-schannel --disable-securetransport --disable-xlib --disable-cuda --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau --disable-videotoolbox --disable-audiotoolbox --disable-appkit --disable-alsa --disable-cuda --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-gmp --enable-gnutls --enable-libmp3lame --enable-libass --enable-iconv --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libxml2 --enable-libopencore-amrnb --enable-libshine --enable-libspeex --enable-libdav1d --enable-libkvazaar --enable-libilbc --enable-libopus --enable-libsnappy --enable-libsoxr --enable-libtwolame --disable-sdl2 --enable-libvo-amrwbenc --enable-libzimg --disable-openssl --enable-zlib --enable-mediacodec
[ffmpeg-kit] libavutil 58. 2.100 / 58. 2.100
[ffmpeg-kit] libavcodec 60. 3.100 / 60. 3.100
[ffmpeg-kit] libavformat 60. 3.100 / 60. 3.100
[ffmpeg-kit] libavdevice 60. 1.100 / 60. 1.100
[ffmpeg-kit] libavfilter 9. 3.100 / 9. 3.100
[ffmpeg-kit] libswscale 7. 1.100 / 7. 1.100
[ffmpeg-kit] libswresample 4. 10.100 / 4. 10.100
[ffmpeg-kit] Input #0, concat, from '/data/user/0/com.companyname.myapp/cache/input.txt':
[ffmpeg-kit] Duration: 
[ffmpeg-kit] 00:00:01.50
[ffmpeg-kit] , start: 
[ffmpeg-kit] 0.000000
[ffmpeg-kit] , bitrate: 
[ffmpeg-kit] 1 kb/s
[ffmpeg-kit] 
[ffmpeg-kit] Stream #0:0
[ffmpeg-kit] : Video: png, rgba(pc), 1080x1970
[ffmpeg-kit] , 
[ffmpeg-kit] 25 fps, 
[ffmpeg-kit] 25 tbr, 
[ffmpeg-kit] 25 tbn
[ffmpeg-kit] 
[ffmpeg-kit] Stream mapping:
[ffmpeg-kit] Stream #0:0 -> #0:0
[ffmpeg-kit] (png (native) -> mpeg4 (native))
[ffmpeg-kit] 
[ffmpeg-kit] Press [q] to stop, [?] for help
[ffmpeg-kit] Output #0, mp4, to '/data/user/0/com.companyname.myapp/cache/myapp.mp4':
[ffmpeg-kit] Metadata:
[ffmpeg-kit] encoder : 
[ffmpeg-kit] Lavf60.3.100
[ffmpeg-kit] 
[ffmpeg-kit] Stream #0:0
[ffmpeg-kit] : Video: mpeg4 (mp4v / 0x7634706D), yuv420p(tv, unknown/bt709/iec61966-2-1, progressive), 720x1280 [SAR 1:1 DAR 9:16], q=2-31, 200 kb/s
[ffmpeg-kit] , 
[ffmpeg-kit] 25 fps, 
[ffmpeg-kit] 12800 tbn
[ffmpeg-kit] 
[ffmpeg-kit] Metadata:
[ffmpeg-kit] encoder : 
[ffmpeg-kit] Lavc60.3.100 mpeg4
[ffmpeg-kit] 
[ffmpeg-kit] Side data:
[ffmpeg-kit] 
[ffmpeg-kit] cpb: 
[ffmpeg-kit] bitrate max/min/avg: 0/0/200000 buffer size: 0 
[ffmpeg-kit] vbv_delay: N/A
[ffmpeg-kit] 
[ffmpeg-kit] frame= 0 fps=0.0 q=4.1 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x 
[ffmpeg-kit] frame= 36 fps=0.0 q=2.7 Lsize= 268kB time=00:00:01.40 bitrate=1568.3kbits/s dup=33 drop=0 speed=7.18x 
[ffmpeg-kit] video:267kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 
[ffmpeg-kit] 0.382941%
[ffmpeg-kit] 



I've putting the execute command in many different ways like
Task.Run(() => ffmpegService.Execute(encoderCommand));


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Attaching audio to video stream using ffmpeg
5 novembre 2023, par lazareaMy goal is to build a simple 10-second long video with a grey background, a simple text, and a simple mp3 audio to be played. I believe it should be a simple enough task ; yet, I am unable to get it right, as the audio is not attached to the video stream.


My code is as follows :


import subprocess
from pathlib import Path

folder_path = Path(__file__).parent.absolute()
assert folder_path / "i_have_a_cat.mp3"

ffmpeg_command = [
 'ffmpeg',
 '-y', # Force override without prompting
 '-f', 'lavfi',
 '-i', 'color=c=gray:s=640x480:d=10',
 '-i', str(folder_path / 'i_have_a_cat.mp3'),
 '-vf', 'drawtext=text=\'I have a cat\':fontsize=24:fontcolor=white:x=(w-text_w)/2:y=(h-text_h)/3*2:enable=\'between(t,2,5)\'',
 '-t', '10',
 str(folder_path / 'output.mp4')
]

subprocess.run(ffmpeg_command)



Checking the ffmpeg logs, I don't see anything extraordinary but I'll paste them here nevertheless because I might be overlooking something.


Input #0, lavfi, from 'color=c=gray:s=640x480:d=10':
 Duration: N/A, start: 0.000000, bitrate: N/A
 Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 640x480 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc

[mp3 @ 000001d271db1140] Estimating duration from bitrate, this may be inaccurate
Input #1, mp3, from 'c:\Users\myfolder\ffmpeg_poc\i_have_a_cat.mp3':
 Metadata:
 encoder : Lavf58.76.100
 Duration: 00:00:00.86, start: 0.000000, bitrate: 48 kb/s
 Stream #1:0: Audio: mp3, 22050 Hz, mono, fltp, 48 kb/s
Stream mapping:
 Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
 Stream #1:0 -> #0:1 (mp3 (mp3float) -> aac (native))



Output #0, mp4, to 'c:\Users\myfolder\ffmpeg_poc\output.mp4':
 Metadata:
 encoder : Lavf58.29.100
 Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p(progressive), 640x480 [SAR 1:1 DAR 4:3], q=-1--1, 25 fps, 12800 tbn, 25 tbc 
 Metadata:
 encoder : Lavc58.54.100 libx264
 Side data:
 cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
 Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 22050 Hz, mono, fltp, 69 kb/s
 Metadata:
 encoder : Lavc58.54.100 aac
[Parsed_color_0 @ 000001d271c6b040] EOF timestamp not reliable
frame= 250 fps=0.0 q=-1.0 Lsize= 24kB time=00:00:09.88 bitrate= 19.9kbits/s speed=31.3x 
video:7kB audio:12kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 23.716467%
[libx264 @ 000001d271d058c0] frame I:1 Avg QP: 9.00 size: 104
[libx264 @ 000001d271d058c0] frame P:63 Avg QP: 9.21 size: 41
[libx264 @ 000001d271d058c0] frame B:186 Avg QP:12.67 size: 21
[libx264 @ 000001d271d058c0] consecutive B-frames: 0.8% 0.0% 0.0% 99.2%
[libx264 @ 000001d271d058c0] mb I I16..4: 100.0% 0.0% 0.0%
[libx264 @ 000001d271d058c0] mb P I16..4: 0.0% 0.0% 0.0% P16..4: 0.0% 0.0% 0.0% 0.0% 0.0% skip:100.0%
[libx264 @ 000001d271d058c0] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 0.0% 0.0% 0.0% direct: 0.0% skip:100.0% L0:50.0% L1:50.0% BI: 0.0% 
[libx264 @ 000001d271d058c0] 8x8 transform intra:0.0%
[libx264 @ 000001d271d058c0] coded y,uvDC,uvAC intra: 0.7% 0.0% 0.0% inter: 0.0% 0.0% 0.0%
[libx264 @ 000001d271d058c0] i16 v,h,dc,p: 97% 0% 3% 0%
[libx264 @ 000001d271d058c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 58% 10% 17% 2% 4% 2% 2% 2% 2%
[libx264 @ 000001d271d058c0] i8c dc,h,v,p: 100% 0% 0% 0%
[libx264 @ 000001d271d058c0] Weighted P-Frames: Y:1.6% UV:0.0%
[libx264 @ 000001d271d058c0] kb/s:5.26
[aac @ 000001d271d071c0] Qavg: 24689.965



Edit


The output of
ffprobe -i output.mp4
is as follows :

ffprobe version 6.0-essentials_build-www.gyan.dev Copyright (c) 2007-2023 the FFmpeg developers
 built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
 configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth 
--enable-sdl2 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libvpl --enable-libgme --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvo-amrwbenc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-librubberband
 libavutil 58. 2.100 / 58. 2.100
 libavcodec 60. 3.100 / 60. 3.100
 libavformat 60. 3.100 / 60. 3.100
 libavdevice 60. 1.100 / 60. 1.100
 libavfilter 9. 3.100 / 9. 3.100
 libswscale 7. 1.100 / 7. 1.100
 libswresample 4. 10.100 / 4. 10.100
 libpostproc 57. 1.100 / 57. 1.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'output.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.29.100
 Duration: 00:00:04.00, start: 0.000000, bitrate: 37 kb/s
 Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 640x480 [SAR 1:1 DAR 4:3], 6 kb/s, 25 fps, 25 tbr, 12800 tbn 
(default)
 Metadata:
 handler_name : VideoHandler
 vendor_id : [0][0][0][0]
 Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 22050 Hz, mono, fltp, 111 kb/s (default)
 Metadata:
 handler_name : SoundHandler
 vendor_id : [0][0][0][0]