
Recherche avancée
Médias (1)
-
The Great Big Beautiful Tomorrow
28 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Texte
Autres articles (48)
-
Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
Les formats acceptés
28 janvier 2010, parLes commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
ffmpeg -codecs ffmpeg -formats
Les format videos acceptés en entrée
Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
Les formats vidéos de sortie possibles
Dans un premier temps on (...) -
Automated installation script of MediaSPIP
25 avril 2011, parTo overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
The documentation of the use of this installation script is available here.
The code of this (...)
Sur d’autres sites (9003)
-
ffmpeg 4.4 problem with image2 combined with stream loop -1 and overlay
14 mai 2021, par codeSamI have a python app and my code to stream ffmpeg is :


'ffmpeg',
'-thread_queue_size', '1024',
'-i', 'rtsp://...',
'-f', 'image2',
'-stream_loop', '-1',
'-i', 'image.png',
'-filter_complex', 'overlay=(main_w-overlay_w)/2:main_h*0.1-overlay_h',
'-acodec', 'aac',
'-ar', '44100',
'-ab', '128k',
'-f', 'flv',
'-g', '30',
'-vcodec', 'libx264',
'-preset', 'ultrafast',
'-crf', '30',
'rtmp://...'



Works fine on ffmpeg 4.3.2. But after ffmpeg updated to 4.4 the stream doesn't start at all. If I change stream_loop -1 to loop 1 the stream starts but as I want to update the image.png like every 10 seconds or so, it stops being updated on the stream. That is probably because new image.png is being saved at the same time it is being read. stream_loop doesn't mind this as I have understood.


Also if I delay image.png start with -ss -5, the stream starts with main video from rtsp ://... but it stops when image.png starts to be read.


Also if I remove -f image2 from the code, the stream starts fine but image.png is not being updated to the stream.


Would be easy to downgrade ffmpeg to the older 4.3.2 version but it is not possible as I want this thing to run on Android device in Termux. Termux has only the latest ffmpeg 4.4 available.


Any ideas how to make this work on ffmpeg 4.4.


Here is what is printed out when I run the command above. The stream does not start. This is done with Termux in Android device. Stream does not start in my Mac Book Pro's ffmpeg 4.4 either, in that 4.3.2 is ok.


ffmpeg version 4.4 Copyright (c) 2000-2021 the FFmpeg developers
 built with Android (6454773 based on r365631c2) clang version 9.0.8 
(https://android.googlesource.com/toolchain/llvm-project 98c855489587874b2a325e7a516b99d838599c6f) (based on LLVM 9.0.8svn)
 configuration: --arch=aarch64 --as=aarch64-linux-android-clang --cc=aarch64-linux-android-clang
 --cxx=aarch64-linux-android-clang++ --cross-prefix=aarch64-linux-android- --disable-indevs 
 --disable-outdevs --enable-indev=lavfi --disable-static --disable-symver --enable-cross-compile 
 --enable-gnutls --enable-gpl --enable-libass --enable-libdav1d --enable-libmp3lame 
 --enable-libfreetype --enable-libvorbis --enable-libopus --enable-libx264 --enable-libx265 
 --enable-libxvid --enable-libvpx --enable-shared --enable-libsoxr --enable-libvidstab 
 --enable-libwebp --prefix=/data/data/com.termux/files/usr --target-os=android 
 --extra-libs=-landroid-glob --enable-neon
 libavutil 56. 70.100 / 56. 70.100
 libavcodec 58.134.100 / 58.134.100
 libavformat 58. 76.100 / 58. 76.100
 libavdevice 58. 13.100 / 58. 13.100
 libavfilter 7.110.100 / 7.110.100
 libswscale 5. 9.100 / 5. 9.100
 libswresample 3. 9.100 / 3. 9.100
 libpostproc 55. 9.100 / 55. 9.100
[udp @ 0x7ebe823840] 'circular_buffer_size' option was set but it is not supported on this build (pthread support is required)
[udp @ 0x7ebe8238e0] 'circular_buffer_size' option was set but it is not supported on this build (pthread support is required)
[udp @ 0x7ebe823a20] 'circular_buffer_size' option was set but it is not supported on this build (pthread support is required)
[udp @ 0x7ebe823ac0] 'circular_buffer_size' option was set but it is not supported on this build (pthread support is required)

Guessed Channel Layout for Input Stream #0.1 : mono
Input #0, rtsp, from 'rtsp://...':
 Metadata:
 title : Session streamed by "TP-LINK RTSP Server"
 comment : stream1
 Duration: N/A, start: 0.000000, bitrate: N/A
 Stream #0:0: Video: h264 (High), yuvj420p(pc, bt709, progressive), 1920x1080, 15 fps, 15 tbr, 90k tbn, 30 tbc
 Stream #0:1: Audio: pcm_alaw, 8000 Hz, mono, s16, 64 kb/s
Input #1, image2, from 'image.png':
 Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
 Stream #1:0: Video: png, rgba(pc), 1152x87 [SAR 8504:8504 DAR 384:29], 25 fps, 25 tbr, 25 tbn, 25 tbc
Stream mapping:
 Stream #0:0 (h264) -> overlay:main (graph 0)
 Stream #1:0 (png) -> overlay:overlay (graph 0)
 overlay (graph 0) -> Stream #0:0 (libx264)
 Stream #0:1 -> #0:1 (pcm_alaw (native) -> aac (native))
Press [q] to stop, [?] for help



-
Timestamp not printed on thumbnails with FFMPEG
26 août 2021, par mlatelcomI have a script using FFMPEG to generate an image with tiled thumbnails every 45 seconds for several videos on a given folder. The images are named with the name of the video it was generated from. It generates the thumbnails for each video but it does not print the time stamps on them. The path to the font file is correct ; so I don't know where the issue is. I'm using the script in Fedora Linux.


Here is the FFMPEG command line code on the script :


ffmpeg -ss 00:00:05 -i test.mp4 -loglevel 40 -frames 1 -bt 20M -vf "drawtext=fontfile=/usr/share/fonts/open-sans/OpenSans-Light.ttf:timecode='00\\:00\\:00\\:00':r=30:fontcolor=white:x=220:y=220:box=1:boxcolor=black@0.5,select=not(mod(n\,1350)),scale=200:150,tile=15x48" -n "${name}.png"



and this is the console output


ffmpeg version 4.4 Copyright (c) 2000-2021 the FFmpeg developers
 built with gcc 11 (GCC)
 configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --docdir=/usr/share/doc/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection' --extra-ldflags='-Wl,-z,relro -Wl,--as-needed -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld ' --extra-cflags=' -I/usr/include/rav1e' --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-amrwbenc --enable-version3 --enable-bzlib --disable-crystalhd --enable-fontconfig --enable-frei0r --enable-gcrypt --enable-gnutls --enable-ladspa --enable-libaom --enable-libdav1d --enable-libass --enable-libbluray --enable-libcdio --enable-libdrm --enable-libjack --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-nvenc --enable-openal --enable-opencl --enable-opengl --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librav1e --enable-libsmbclient --enable-version3 --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-version3 --enable-vapoursynth --enable-libvpx --enable-vulkan --enable-libglslang --enable-libx264 --enable-libx265 --enable-libxvid --enable-libxml2 --enable-libzimg --enable-libzvbi --enable-lv2 --enable-avfilter --enable-avresample --enable-libmodplug --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-lto --enable-libmfx --enable-runtime-cpudetect
 libavutil 56. 70.100 / 56. 70.100
 libavcodec 58.134.100 / 58.134.100
 libavformat 58. 76.100 / 58. 76.100
 libavdevice 58. 13.100 / 58. 13.100
 libavfilter 7.110.100 / 7.110.100
 libavresample 4. 0. 0 / 4. 0. 0
 libswscale 5. 9.100 / 5. 9.100
 libswresample 3. 9.100 / 3. 9.100
 libpostproc 55. 9.100 / 55. 9.100
[h264 @ 0x56051b4b3cc0] Reinit context to 1280x720, pix_fmt: yuv420p
[mpegts @ 0x56051b4acc80] max_analyze_duration 5000000 reached at 5000000 microseconds st:0
Input #0, mpegts, from 'test.mp4':
 Duration: 00:04:57.02, start: 1.400000, bitrate: 2853 kb/s
 Program 1 
 Metadata:
 service_name : Service01
 service_provider: FFmpeg
 Stream #0:0[0x100]: Video: h264 (Main), 1 reference frame ([27][0][0][0] / 0x001B), yuv420p(progressive, left), 1280x720 [SAR 1:1 DAR 16:9], 30 fps, 30 tbr, 90k tbn, 60 tbc
 Stream #0:1[0x101]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 96 kb/s
Stream mapping:
 Stream #0:0 -> #0:0 (h264 (native) -> png (native))
Press [q] to stop, [?] for help
[h264 @ 0x56051ba69e00] Reinit context to 1280x720, pix_fmt: yuv420p
[Parsed_scale_2 @ 0x56051b5953c0] w:200 h:150 flags:'bicubic' interl:0
[graph 0 input from stream 0:0 @ 0x56051b725ac0] w:1280 h:720 pixfmt:yuv420p tb:1/90000 fr:30/1 sar:1/1
[Parsed_scale_2 @ 0x56051b5953c0] w:1280 h:720 fmt:yuv420p sar:1/1 -> w:200 h:150 fmt:rgb24 sar:4/3 flags:0x4
Output #0, image2, to '.png':
 Metadata:
 encoder : Lavf58.76.100
 Stream #0:0: Video: png, 1 reference frame, rgb24(pc, progressive, left), 3000x7200 (0x0) [SAR 4:3 DAR 5:9], q=2-31, 200 kb/s, 0.04 fps, 0.04 tbn
 Metadata:
 encoder : Lavc58.134.100 png
No more output streams to write to, finishing.00.00 bitrate=N/A speed= 0x 
[AVIOContext @ 0x56051b84c8c0] Statistics: 0 seeks, 2 writeouts
frame= 1 fps=0.0 q=-0.0 Lsize=N/A time=00:00:24.00 bitrate=N/A speed=0.47x 
video:465kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
Input file #0 (test.mp4):
 Input stream #0:0 (video): 8761 packets read (96159422 bytes); 8760 frames decoded; 
 Input stream #0:1 (audio): 0 packets read (0 bytes); 
 Total: 8761 packets (96159422 bytes) demuxed
Output file #0 (.png):
 Output stream #0:0 (video): 1 frames encoded; 1 packets muxed (476224 bytes); 
 Total: 1 packets (476224 bytes) muxed
[AVIOContext @ 0x56051b4b5d00] Statistics: 107090352 bytes read, 18 seeks



-
Convert Webp to MP4 file in Python Script [duplicate]
13 mai 2021, par Sar sinuais there any way to convert Webp file to MP4 in python script ?i want to execute my codes on Heroku


i tried...


import moviepy.editor as mp

clip = mp.VideoFileClip("input.webp")
clip.write_videofile("output.mp4")



i got error :


OSError : MoviePy error : failed to read the duration of file giphy.webp.
Here are the file infos returned by ffmpeg :


ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 9.2.1 (GCC) 20200122
configuration : —enable-gpl —enable-version3 —enable-sdl2 —enable-fontconfig —enable-gnutls —enable-iconv —enable-libass —enable-libdav1d —enable-libbluray —enable-libfreetype —enable-libmp3lame —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-libopenjpeg —enable-libopus —enable-libshine —enable-libsnappy —enable-libsoxr —enable-libtheora —enable-libtwolame —enable-libvpx —enable-libwavpack —enable-libwebp —enable-libx264 —enable-libx265 —enable-libxml2 —enable-libzimg —enable-lzma —enable-zlib —enable-gmp —enable-libvidstab —enable-libvorbis —enable-libvo-amrwbenc —enable-libmysofa —enable-libspeex —enable-libxvid —enable-libaom —enable-libmfx —enable-amf —enable-ffnvcodec —enable-cuvid —enable-d3d11va —enable-nvenc —enable-nvdec —enable-dxva2 —enable-avisynth —enable-libopenmpt
libavutil 56. 31.100 / 56. 31.100
libavcodec 58. 54.100 / 58. 54.100
libavformat 58. 29.100 / 58. 29.100
libavdevice 58. 8.100 / 58. 8.100
libavfilter 7. 57.100 / 7. 57.100
libswscale 5. 5.100 / 5. 5.100
libswresample 3. 5.100 / 3. 5.100
libpostproc 55. 5.100 / 55. 5.100
[webp @ 00000275c1bab780] skipping unsupported chunk : ANIM
[webp @ 00000275c1bab780] skipping unsupported chunk : ANMF
Last message repeated 36 times
[webp @ 00000275c1bab780] image data not found
[webp_pipe @ 00000275c1b99380] decoding for stream 0 failed
[webp_pipe @ 00000275c1b99380] Could not find codec parameters for stream 0 (Video : webp, none) : unspecified size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, webp_pipe, from 'giphy.webp' :
Duration : N/A, bitrate : N/A
Stream #0:0 : Video : webp, none, 25 tbr, 25 tbn, 25 tbc
At least one output file must be specified


and also i tried this command in command line :


C:\Users\***\Desktop\Notebook>ffmpeg -i giphy.webp giphy.mp4



i got this error :


ffmpeg version 2021-05-12-git-175f675f7b-full_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers
 built with gcc 10.2.0 (Rev6, 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-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-frei0r --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-libmfx --enable-libglslang --enable-vulkan --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
 libavutil 57. 0.100 / 57. 0.100
 libavcodec 59. 1.100 / 59. 1.100
 libavformat 59. 0.101 / 59. 0.101
 libavdevice 59. 0.100 / 59. 0.100
 libavfilter 8. 0.101 / 8. 0.101
 libswscale 6. 0.100 / 6. 0.100
 libswresample 4. 0.100 / 4. 0.100
 libpostproc 56. 0.100 / 56. 0.100
[webp @ 0000025fb2a2ff00] skipping unsupported chunk: ANIM
[webp @ 0000025fb2a2ff00] skipping unsupported chunk: ANMF
 Last message repeated 36 times
[webp @ 0000025fb2a2ff00] image data not found
[webp_pipe @ 0000025fb2a1b180] decoding for stream 0 failed
[webp_pipe @ 0000025fb2a1b180] Could not find codec parameters for stream 0 (Video: webp, none): unspecified size
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options
Input #0, webp_pipe, from 'giphy.webp':
 Duration: N/A, bitrate: N/A
 Stream #0:0: Video: webp, none, 25 fps, 25 tbr, 25 tbn
File 'giphy.mp4' already exists. Overwrite? [y/N] y
Stream mapping:
 Stream #0:0 -> #0:0 (webp (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[webp @ 0000025fb324c1c0] skipping unsupported chunk: ANIM
[webp @ 0000025fb324c1c0] skipping unsupported chunk: ANMF
 Last message repeated 36 times
[webp @ 0000025fb324c1c0] image data not found
Error while decoding stream #0:0: Invalid data found when processing input
Cannot determine format of input stream 0:0 after EOF
Error marking filters as finished
Conversion failed!