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Autres articles (64)
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(Dés)Activation de fonctionnalités (plugins)
18 février 2011, parPour gérer l’ajout et la suppression de fonctionnalités supplémentaires (ou plugins), MediaSPIP utilise à partir de la version 0.2 SVP.
SVP permet l’activation facile de plugins depuis l’espace de configuration de MediaSPIP.
Pour y accéder, il suffit de se rendre dans l’espace de configuration puis de se rendre sur la page "Gestion des plugins".
MediaSPIP est fourni par défaut avec l’ensemble des plugins dits "compatibles", ils ont été testés et intégrés afin de fonctionner parfaitement avec chaque (...) -
Activation de l’inscription des visiteurs
12 avril 2011, parIl est également possible d’activer l’inscription des visiteurs ce qui permettra à tout un chacun d’ouvrir soit même un compte sur le canal en question dans le cadre de projets ouverts par exemple.
Pour ce faire, il suffit d’aller dans l’espace de configuration du site en choisissant le sous menus "Gestion des utilisateurs". Le premier formulaire visible correspond à cette fonctionnalité.
Par défaut, MediaSPIP a créé lors de son initialisation un élément de menu dans le menu du haut de la page menant (...) -
Support de tous types de médias
10 avril 2011Contrairement à beaucoup de logiciels et autres plate-formes modernes de partage de documents, MediaSPIP a l’ambition de gérer un maximum de formats de documents différents qu’ils soient de type : images (png, gif, jpg, bmp et autres...) ; audio (MP3, Ogg, Wav et autres...) ; vidéo (Avi, MP4, Ogv, mpg, mov, wmv et autres...) ; contenu textuel, code ou autres (open office, microsoft office (tableur, présentation), web (html, css), LaTeX, Google Earth) (...)
Sur d’autres sites (6675)
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avutil : remove deprecated FF_API_FRAME_KEY
19 février, par James Almeravutil : remove deprecated FF_API_FRAME_KEY
Deprecated since 2023-05-04.
Signed-off-by : James Almer <jamrial@gmail.com>
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ffprobe newer version detect audio codec incorrectly
16 janvier, par alanccI find a strange problem.


I have a test video with h264 video codec and aac audio codec. It is at https://drive.google.com/file/d/1YAyz5cO0kb9r0MgahCpISR4bZ_1_n8PL/view?usp=sharing


I build a ffmpeg version by myself, its version is :


ffprobe version 7.0.2 Copyright (c) 2007-2024 the FFmpeg developers
 built with gcc 14.1.0 (Rev3, Built by MSYS2 project)
 configuration: --enable-shared
 libavutil 59. 8.100 / 59. 8.100
 libavcodec 61. 3.100 / 61. 3.100
 libavformat 61. 1.100 / 61. 1.100
 libavdevice 61. 1.100 / 61. 1.100
 libavfilter 10. 1.100 / 10. 1.100
 libswscale 8. 1.100 / 8. 1.100
 libswresample 5. 1.100 / 5. 1.100



I then use ffprobe to get its info :


ffprobe -v quiet -print_format ini -show_streams -show_packets test_h264.mp4 > test_h264.ini



Then I get an ini file which shows the audio codec as MP2 :


[streams.stream.0]
index=0
codec_name=mp2
codec_long_name=MP2 (MPEG audio layer 2)
profile=unknown
codec_type=audio
codec_tag_string=mp4a
codec_tag=0x6134706d
sample_fmt=fltp
sample_rate=44100
channels=2
channel_layout=stereo
bits_per_sample=0
initial_padding=0
id=0x1
r_frame_rate=0/0
avg_frame_rate=0/0
time_base=1/44100
start_pts=2788
start_time=0.063220
duration_ts=435455
duration=9.874263
bit_rate=127706
max_bit_rate=N/A
bits_per_raw_sample=N/A
nb_frames=378
nb_read_frames=N/A
nb_read_packets=378



Another developer he uses his version of ffprobe :


ffprobe version 2023-02-22-git-d5cc7acff1-full_build-www.gyan.dev Copyright (c) 2007-2023 the FFmpeg developers 



Based on the year, my version(2024) should be newer than his(2023), but his version of ffprobe can get the audio codec properly :


[streams.stream.1]
index=1
codec_name=aac
codec_long_name=AAC (Advanced Audio Coding)
profile=LC
codec_type=audio
codec_tag_string=mp4a
codec_tag=0x6134706d
sample_fmt=fltp
sample_rate=44100
channels=2
channel_layout=stereo
bits_per_sample=0
initial_padding=0
id=0x2
r_frame_rate=0/0
avg_frame_rate=0/0
time_base=1/44100
start_pts=1764
start_time=0.040000
duration_ts=436480
duration=9.897506
bit_rate=111733
max_bit_rate=N/A
bits_per_raw_sample=N/A
nb_frames=427
nb_read_frames=N/A
nb_read_packets=427
extradata_size=5



Why ?


I also tried a ffprobe version on ubuntu with the following version :


ffprobe version 6.1.1-3ubuntu5 Copyright (c) 2007-2023 the FFmpeg developers
 built with gcc 13 (Ubuntu 13.2.0-23ubuntu3)
 configuration: --prefix=/usr --extra-version=3ubuntu5 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --disable-omx --enable-gnutls --enable-libaom --enable-libass --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libglslang --enable-libgme --enable-libgsm --enable-libharfbuzz --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg --enable-openal --enable-opencl --enable-opengl --disable-sndio --enable-libvpl --disable-libmfx --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-ladspa --enable-libbluray --enable-libjack --enable-libpulse --enable-librabbitmq --enable-librist --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libx264 --enable-libzmq --enable-libzvbi --enable-lv2 --enable-sdl2 --enable-libplacebo --enable-librav1e --enable-pocketsphinx --enable-librsvg --enable-libjxl --enable-shared
 libavutil 58. 29.100 / 58. 29.100
 libavcodec 60. 31.102 / 60. 31.102
 libavformat 60. 16.100 / 60. 16.100
 libavdevice 60. 3.100 / 60. 3.100
 libavfilter 9. 12.100 / 9. 12.100
 libswscale 7. 5.100 / 7. 5.100
 libswresample 4. 12.100 / 4. 12.100
 libpostproc 57. 3.100 / 57. 3.100



It will detect the audio as aac properly, but with different parameters, for example, bit_rate is 111733(developer) but 110399(ubuntu). But this parameter comes from the same file so should be the same.


[streams.stream.1]
index=1
codec_name=aac
codec_long_name=AAC (Advanced Audio Coding)
profile=LC
codec_type=audio
codec_tag_string=mp4a
codec_tag=0x6134706d
sample_fmt=fltp
sample_rate=44100
channels=2
channel_layout=stereo
bits_per_sample=0
initial_padding=0
id=0x2
r_frame_rate=0/0
avg_frame_rate=0/0
time_base=1/44100
start_pts=0
start_time=0.000000
duration_ts=441353
duration=10.008005
bit_rate=110399
max_bit_rate=N/A
bits_per_raw_sample=N/A
nb_frames=432
nb_read_frames=N/A
nb_read_packets=432
extradata_size=5




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ffmpeg.wasm - How to do literally anything with a blob url
24 novembre 2024, par SeriousLeeI'm using the ffmpeg.wasm for the first time and I can't get anything working, beyond loading it. I have this function that does nothing in particular (I got it from the vite + react example in the docs, slightly modified) and all I want to do is pass it a blob URL like this
blob:http://localhost:5173/c7a9ea7c-aa26-4f4f-9c80-11b8aef3e81f
and run through the function and have it give me anything back. But instead, it hangs on theffmpeg.exec
command and never completes. And yes, I've determined that the input blob does work - it's an 8MB, 12-second long mp4 clip.

Here's the function :


const processOutputVideo = async (videoURL) => {
 const ffmpeg = ffmpegRef.current;

 await ffmpeg.writeFile("input.mp4", await fetchFile(videoURL));
 await ffmpeg.exec(["-i", "input.mp4", "output.mp4"]);

 const fileData = await ffmpeg.readFile("output.mp4");
 const blob = new Blob([fileData.buffer], { type: "video/mp4" });
 const blobUrl = URL.createObjectURL(blob);

 return blobUrl;
 };



And here's the ffmpeg logs from my terminal.


[FFMPEG stderr] ffmpeg version 5.1.4 Copyright (c) 2000-2023 the FFmpeg developers
Post.jsx:35 [FFMPEG stderr] built with emcc (Emscripten gcc/clang-like replacement + linker emulating GNU ld) 3.1.40 (5c27e79dd0a9c4e27ef2326841698cdd4f6b5784)
Post.jsx:35 [FFMPEG stderr] configuration: --target-os=none --arch=x86_32 --enable-cross-compile --disable-asm --disable-stripping --disable-programs --disable-doc --disable-debug --disable-runtime-cpudetect --disable-autodetect --nm=emnm --ar=emar --ranlib=emranlib --cc=emcc --cxx=em++ --objcc=emcc --dep-cc=emcc --extra-cflags='-I/opt/include -O3 -msimd128 -sUSE_PTHREADS -pthread' --extra-cxxflags='-I/opt/include -O3 -msimd128 -sUSE_PTHREADS -pthread' --enable-gpl --enable-libx264 --enable-libx265 --enable-libvpx --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libopus --enable-zlib --enable-libwebp --enable-libfreetype --enable-libfribidi --enable-libass --enable-libzimg
Post.jsx:35 [FFMPEG stderr] libavutil 57. 28.100 / 57. 28.100
Post.jsx:35 [FFMPEG stderr] libavcodec 59. 37.100 / 59. 37.100
Post.jsx:35 [FFMPEG stderr] libavformat 59. 27.100 / 59. 27.100
Post.jsx:35 [FFMPEG stderr] libavdevice 59. 7.100 / 59. 7.100
Post.jsx:35 [FFMPEG stderr] libavfilter 8. 44.100 / 8. 44.100
Post.jsx:35 [FFMPEG stderr] libswscale 6. 7.100 / 6. 7.100
Post.jsx:35 [FFMPEG stderr] libswresample 4. 7.100 / 4. 7.100
Post.jsx:35 [FFMPEG stderr] libpostproc 56. 6.100 / 56. 6.100
Post.jsx:35 [FFMPEG stderr] Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4':
Post.jsx:35 [FFMPEG stderr] Metadata:
Post.jsx:35 [FFMPEG stderr] major_brand : mp42
Post.jsx:35 [FFMPEG stderr] minor_version : 0
Post.jsx:35 [FFMPEG stderr] compatible_brands: mp42mp41isomavc1
Post.jsx:35 [FFMPEG stderr] creation_time : 2019-03-15T17:39:05.000000Z
Post.jsx:35 [FFMPEG stderr] Duration: 00:00:12.82, start: 0.000000, bitrate: 5124 kb/s
Post.jsx:35 [FFMPEG stderr] Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1920x1080, 4985 kb/s, 29.97 fps, 29.97 tbr, 30k tbn (default)
Post.jsx:35 [FFMPEG stderr] Metadata:
Post.jsx:35 [FFMPEG stderr] creation_time : 2019-03-15T17:39:05.000000Z
Post.jsx:35 [FFMPEG stderr] handler_name : L-SMASH Video Handler
Post.jsx:35 [FFMPEG stderr] vendor_id : [0][0][0][0]
Post.jsx:35 [FFMPEG stderr] encoder : AVC Coding
Post.jsx:35 [FFMPEG stderr] Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 137 kb/s (default)
Post.jsx:35 [FFMPEG stderr] Metadata:
Post.jsx:35 [FFMPEG stderr] creation_time : 2019-03-15T17:39:05.000000Z
Post.jsx:35 [FFMPEG stderr] handler_name : L-SMASH Audio Handler
Post.jsx:35 [FFMPEG stderr] vendor_id : [0][0][0][0]
Post.jsx:35 [FFMPEG stderr] Stream mapping:
Post.jsx:35 [FFMPEG stderr] Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Post.jsx:35 [FFMPEG stderr] Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Post.jsx:35 [FFMPEG stderr] [libx264 @ 0x154e4f0] using cpu capabilities: none!
Post.jsx:35 [FFMPEG stderr] [libx264 @ 0x154e4f0] profile High, level 4.0, 4:2:0, 8-bit
Post.jsx:35 [FFMPEG stderr] [libx264 @ 0x154e4f0] 264 - core 164 - H.264/MPEG-4 AVC codec - Copyleft 2003-2022 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00



And it just hangs there. When I use the example video URL from the official example (
https://raw.githubusercontent.com/ffmpegwasm/testdata/master/video-15s.avi
), it doesn't hang and it completes the function and returns me a blob URL in the same format as that first blob URL I showed you guys and this is what the ffmpeg output looks like in my console in that case :

Post.jsx:35 [FFMPEG stderr] [libx264 @ 0xdf3000] frame P:160 Avg QP:23.62 size: 1512
Post.jsx:35 [FFMPEG stderr] [libx264 @ 0xdf3000] frame B:385 Avg QP:26.75 size: 589
Post.jsx:35 [FFMPEG stderr] [libx264 @ 0xdf3000] consecutive B-frames: 5.5% 3.6% 0.0% 90.9%
Post.jsx:35 [FFMPEG stderr] [libx264 @ 0xdf3000] mb I I16..4: 12.6% 87.4% 0.0%
Post.jsx:35 [FFMPEG stderr] [libx264 @ 0xdf3000] mb P I16..4: 3.8% 47.5% 1.6% P16..4: 12.9% 7.4% 5.0% 0.0% 0.0% skip:21.7%
Post.jsx:35 [FFMPEG stderr] [libx264 @ 0xdf3000] mb B I16..4: 1.2% 10.3% 0.4% B16..8: 22.3% 6.9% 1.4% direct: 2.7% skip:54.8% L0:46.9% L1:40.2% BI:12.9%
Post.jsx:35 [FFMPEG stderr] [libx264 @ 0xdf3000] 8x8 transform intra:88.7% inter:74.7%
Post.jsx:35 [FFMPEG stderr] [libx264 @ 0xdf3000] coded y,uvDC,uvAC intra: 68.3% 0.0% 0.0% inter: 11.8% 0.0% 0.0%
Post.jsx:35 [FFMPEG stderr] [libx264 @ 0xdf3000] i16 v,h,dc,p: 33% 40% 24% 3%
Post.jsx:35 [FFMPEG stderr] [libx264 @ 0xdf3000] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 15% 26% 52% 2% 1% 1% 1% 1% 3%
Post.jsx:35 [FFMPEG stderr] [libx264 @ 0xdf3000] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 21% 20% 5% 5% 5% 4% 6% 5%
Post.jsx:35 [FFMPEG stderr] [libx264 @ 0xdf3000] i8c dc,h,v,p: 100% 0% 0% 0%
Post.jsx:35 [FFMPEG stderr] [libx264 @ 0xdf3000] Weighted P-Frames: Y:12.5% UV:0.0%
Post.jsx:35 [FFMPEG stderr] [libx264 @ 0xdf3000] ref P L0: 48.9% 12.5% 22.3% 14.7% 1.6%
Post.jsx:35 [FFMPEG stderr] [libx264 @ 0xdf3000] ref B L0: 77.5% 15.7% 6.8%
Post.jsx:35 [FFMPEG stderr] [libx264 @ 0xdf3000] ref B L1: 90.9% 9.1%
Post.jsx:35 [FFMPEG stderr] [libx264 @ 0xdf3000] kb/s:242.65
Post.jsx:35 [FFMPEG stderr] Aborted()



Where am I going wrong, what should I convert my input blob into ? And just FYI, ChatGPT has been completely garbage at helping me solve this lmao.