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MediaSPIP version 0.1 Beta
16 avril 2011, parMediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
Pour avoir une installation fonctionnelle, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...) -
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 (...) -
Amélioration de la version de base
13 septembre 2013Jolie sélection multiple
Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)
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ffmpeg concat doesn't sync to manual frame by frame concatenation
5 juillet 2022, par memoI have hundreds of short (10-120seconds) videos (H264 mp4) with audio (aac). (let's call these 'clips'). All identical video and audio codecs, resolution, framerate, crf, pixel format, sample rate etc.


concat_demux :


If I concat these with ffmpeg concat (demuxer), I get a single nice H264 mp4 with audio perfectly synced to the video (as expected).


cmd_args = ['ffmpeg',
 '-f concat',
 '-safe 0',
 f'-i "{output_filelist_path}"',
 '-c copy',
 '-y',
 '-r 30', # trying this out of desperation
 f'"{output_concat_demux}"'
 ]

cmd = ' '.join(cmd_args)
r = subprocess.call(cmd, shell=True, cwd=args.output_dir)



frame_by_frame :


However, if I manually iterate every frame of every clip video and write the frames to an mp4 using skvideo.io, this video drifts out of sync with the concat_demux version.


input_dict = { '-r':str(fps) } 
output_dict = { '-r':str(fps), '-pix_fmt':'yuv420p', '-vcodec':'libx264', '-crf':'18' }
video_writer = skvideo.io.FFmpegWriter(output_path, inputdict=input_dict, outputdict=output_dict) 

for video_path in video_paths:
 video = skvideo.io.vread(video_path) # read all frames into np.array
 for frame in video:
 video_writer.writeFrame(frame)
video_writer.close()



When I compare these two files in a video editor (e.g. AfterEffects) and step through frame by frame, I can see that with every new clip, the frame_by_frame version slips 1 or 2 frames ahead of the ffmpeg concat_demux version. What is going on ? How can I fix - or at least debug - this ?


On a side note, I do need to concatenate manually frame by frame, as I'm also doing a ton of other stuff (triggering events on clip change, overlaying additional elements etc). And I need to be able to sync a concatenated audio. I was hoping to concatenate the video manually frame by frame and do my post-processing, and then mux with the audio from the ffmpeg concat_demux version. But alas they drift out of sync.



(I've found quite a few posts on SO where the problem is using ffmpeg concat results in videos which are out of sync with the audio. However, this is not my problem. My video created with ffmpeg concat is perfectly in sync with the audio, but it's out of sync with a manually frame-by-frame concatenated video.)



Update - concat_protocol


I've tried using the concat protocol. Now the output of this gives a file where the video is frame synced to the frame_by_frame version, BUT the audio is synced to the audio of the concat_demux version. So its audio is out of sync with the video.


intermediate_paths = []
for p in clip_file_list:
 intermediate_path = os.path.join(args.output_dir, 'intermediate', os.path.basename(p) + '.ts')
 intermediate_paths.append(intermediate_path)
 cmd_args = ['ffmpeg',
 f'-i "{p}"',
 '-c copy -bsf:v h264_mp4toannexb -f mpegts -y',
 f'"{intermediate_path}"'
 ]

 cmd = ' '.join(cmd_args)
 r = subprocess.call(cmd, shell=True, cwd=args.output_dir)


intermediate_paths = '|'.join(intermediate_paths)
cmd_args = ['ffmpeg',
 f'-i "concat:{intermediate_paths}"',
 '-c copy -bsf:a aac_adtstoasc',
 f'"{output_concat_path}"'
 ]

cmd = ' '.join(cmd_args)
r = subprocess.call(cmd, shell=True, cwd=args.output_dir)



I am getting loads of errors like below


corrupt input packet in stream 0
[mp4 @ 0x137e043d0] Non-monotonous DTS in output stream 0:1; previous: 83027966, current: 83027198; changing to 83027967. This may result in incorrect timestamps in the output file.




here's the info on the two output files. Input #0 is the ffmpeg concat_demux. Input #1 is the manual frame-by-frame. Note the concat.mp4 has a framerate of 29.94 fps. I'm not sure if this is the problem. I couldn't figure out how to make this 30 (see '-r 30' in the ffmpeg concat command above)


ffmpeg version 5.0.1 Copyright (c) 2000-2022 the FFmpeg developers
 built with Apple clang version 13.1.6 (clang-1316.0.21.2.5)
 configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/5.0.1_2 --enable-shared --enable-pthreads --enable-version3 --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-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --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-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-neon
 libavutil 57. 17.100 / 57. 17.100
 libavcodec 59. 18.100 / 59. 18.100
 libavformat 59. 16.100 / 59. 16.100
 libavdevice 59. 4.100 / 59. 4.100
 libavfilter 8. 24.100 / 8. 24.100
 libswscale 6. 4.100 / 6. 4.100
 libswresample 4. 3.100 / 4. 3.100
 libpostproc 56. 3.100 / 56. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'clips_concat.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf59.16.100
 Duration: 00:01:43.22, start: 0.000000, bitrate: 5412 kb/s
 Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 1080x1080 [SAR 1:1 DAR 1:1], 5276 kb/s, 29.94 fps, 30 tbr, 15360 tbn (default)
 Metadata:
 handler_name : VideoHandler
 vendor_id : [0][0][0][0]
 Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
 Metadata:
 handler_name : SoundHandler
 vendor_id : [0][0][0][0]
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'clips_frames.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf59.16.100
 Duration: 00:01:43.00, start: 0.000000, bitrate: 4917 kb/s
 Stream #1:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 1080x1080, 4914 kb/s, 30 fps, 30 tbr, 15360 tbn (default)
 Metadata:
 handler_name : VideoHandler
 vendor_id : [0][0][0][0]




here's info on first few clips (the manual concat is already 2 frames out of sync with the ffmpeg concat version by the second clip !)


ffmpeg version 5.0.1 Copyright (c) 2000-2022 the FFmpeg developers
 built with Apple clang version 13.1.6 (clang-1316.0.21.2.5)
 configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/5.0.1_2 --enable-shared --enable-pthreads --enable-version3 --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-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --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-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-neon
 libavutil 57. 17.100 / 57. 17.100
 libavcodec 59. 18.100 / 59. 18.100
 libavformat 59. 16.100 / 59. 16.100
 libavdevice 59. 4.100 / 59. 4.100
 libavfilter 8. 24.100 / 8. 24.100
 libswscale 6. 4.100 / 6. 4.100
 libswresample 4. 3.100 / 4. 3.100
 libpostproc 56. 3.100 / 56. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'clip_1080px_0.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.29.100
 Duration: 00:00:05.02, start: 0.000000, bitrate: 3944 kb/s
 Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 1080x1080 [SAR 1:1 DAR 1:1], 3818 kb/s, 30 fps, 30 tbr, 15360 tbn (default)
 Metadata:
 handler_name : VideoHandler
 vendor_id : [0][0][0][0]
 Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 131 kb/s (default)
 Metadata:
 handler_name : SoundHandler
 vendor_id : [0][0][0][0]
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'clip_1080px_1.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.29.100
 Duration: 00:00:05.02, start: 0.000000, bitrate: 4557 kb/s
 Stream #1:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 1080x1080 [SAR 1:1 DAR 1:1], 4438 kb/s, 30 fps, 30 tbr, 15360 tbn (default)
 Metadata:
 handler_name : VideoHandler
 vendor_id : [0][0][0][0]
 Stream #1:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
 Metadata:
 handler_name : SoundHandler
 vendor_id : [0][0][0][0]
Input #2, mov,mp4,m4a,3gp,3g2,mj2, from 'clip_1080px_2.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.29.100
 Duration: 00:00:11.02, start: 0.000000, bitrate: 5447 kb/s
 Stream #2:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 1080x1080 [SAR 1:1 DAR 1:1], 5320 kb/s, 30 fps, 30 tbr, 15360 tbn (default)
 Metadata:
 handler_name : VideoHandler
 vendor_id : [0][0][0][0]
 Stream #2:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
 Metadata:
 handler_name : SoundHandler
 vendor_id : [0][0][0][0]
Input #3, mov,mp4,m4a,3gp,3g2,mj2, from 'clip_1080px_3.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.29.100
 Duration: 00:00:11.02, start: 0.000000, bitrate: 5978 kb/s
 Stream #3:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 1080x1080 [SAR 1:1 DAR 1:1], 5851 kb/s, 30 fps, 30 tbr, 15360 tbn (default)
 Metadata:
 handler_name : VideoHandler
 vendor_id : [0][0][0][0]
 Stream #3:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
 Metadata:
 handler_name : SoundHandler
 vendor_id : [0][0][0][0]
Input #4, mov,mp4,m4a,3gp,3g2,mj2, from 'clip_1080px_4.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.29.100
 Duration: 00:00:16.02, start: 0.000000, bitrate: 6570 kb/s
 Stream #4:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 1080x1080 [SAR 1:1 DAR 1:1], 6441 kb/s, 30 fps, 30 tbr, 15360 tbn (default)
 Metadata:
 handler_name : VideoHandler
 vendor_id : [0][0][0][0]
 Stream #4:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
 Metadata:
 handler_name : SoundHandler
 vendor_id : [0][0][0][0]
Input #5, mov,mp4,m4a,3gp,3g2,mj2, from 'clip_1080px_5.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.29.100
 Duration: 00:00:13.02, start: 0.000000, bitrate: 5069 kb/s
 Stream #5:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 1080x1080 [SAR 1:1 DAR 1:1], 4940 kb/s, 30 fps, 30 tbr, 15360 tbn (default)
 Metadata:
 handler_name : VideoHandler
 vendor_id : [0][0][0][0]
 Stream #5:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
 Metadata:
 handler_name : SoundHandler
 vendor_id : [0][0][0][0]
Input #6, mov,mp4,m4a,3gp,3g2,mj2, from 'clip_1080px_6.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.29.100
 Duration: 00:00:22.02, start: 0.000000, bitrate: 4775 kb/s
 Stream #6:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 1080x1080 [SAR 1:1 DAR 1:1], 4642 kb/s, 30 fps, 30 tbr, 15360 tbn (default)
 Metadata:
 handler_name : VideoHandler
 vendor_id : [0][0][0][0]
 Stream #6:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
 Metadata:
 handler_name : SoundHandler
 vendor_id : [0][0][0][0]
Input #7, mov,mp4,m4a,3gp,3g2,mj2, from 'clip_1080px_7.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.29.100
 Duration: 00:00:22.02, start: 0.000000, bitrate: 5402 kb/s
 Stream #7:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 1080x1080 [SAR 1:1 DAR 1:1], 5269 kb/s, 30 fps, 30 tbr, 15360 tbn (default)
 Metadata:
 handler_name : VideoHandler
 vendor_id : [0][0][0][0]
 Stream #7:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
 Metadata:
 handler_name : SoundHandler
 vendor_id : [0][0][0][0]



-
ffmpeg concat iMovie Import - Inconsistent Failure
9 octobre 2017, par Erik KastmanI’m attempting to create two movies using a set of timed screenshots with
ffmpeg
, using-f concat
to specify png screenshots and durations that they should be shown for. I’m pulling mostly from the ffmpeg slideshow tutorial
and concat documentation. Quicktime is able to open both of my ffmpeg-generated movies without problem, but despite using identical commands and scripts to create them, iMovie has no problem opening one and never opens the other, no matter how many times I recreate the source screenshots/durations and recreate the video.I have two screens that are captured from my input and converted to pngs, and I’m trying to generate two movies to import into iMovie and show side by side at the same time. To generate the movies, I’m using the following command :
ffmpeg -f concat -i win1input.txt -vsync vfr -pix_fmt yuv420p win1.mov
ffmpeg -f concat -i win2input.txt -vsync vfr -pix_fmt yuv420p win2.movWhere win1input.txt and win2input.txt are essentially identical (generated from the same script with different filenames and times) :
file 'win1-01.png'
duration 3.07
file 'win1-02.png'
duration 2.55
...Both movies are generated and can be opened by quicktime without any complaints. However, when I try to import them into iMovie, the first movie always imports just fine, and the second gives the error "No importable files" and has a 0 duration in the media preview window.
Can anyone suggest ways to look at the movies and try to find what could be throwing iMovie ? Without a more detailed error I’m stuck. And I’m totally confused as to what could be the difference between the two, since they are generated from the same process, codec, etc. Any help or suggestions for further info about the movies would be appreciated !
UPDATE with
ffmpeg -i
output :$ ffmpeg -i badMovie.mov
ffmpeg version 3.3.2 Copyright (c) 2000-2017 the FFmpeg developers
built with Apple LLVM version 8.1.0 (clang-802.0.42)
configuration: --prefix=/usr/local/Cellar/ffmpeg/3.3.2 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libass --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-opencl --enable-openssl --disable-lzma --enable-nonfree --enable-vda
libavutil 55. 58.100 / 55. 58.100
libavcodec 57. 89.100 / 57. 89.100
libavformat 57. 71.100 / 57. 71.100
libavdevice 57. 6.100 / 57. 6.100
libavfilter 6. 82.100 / 6. 82.100
libavresample 3. 5. 0 / 3. 5. 0
libswscale 4. 6.100 / 4. 6.100
libswresample 2. 7.100 / 2. 7.100
libpostproc 54. 5.100 / 54. 5.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'badMovie.mov':
Metadata:
major_brand : qt
minor_version : 512
compatible_brands: qt
encoder : Lavf56.40.101
Duration: 00:02:09.84, start: 0.000000, bitrate: 36 kb/s
Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x800, 35 kb/s, 0.28 fps, 25 tbr, 12800 tbn, 50 tbc (default)
Metadata:
handler_name : DataHandler
encoder : Lavc56.60.100 libx264
$ ffmpeg -i goodMovie.mov
ffmpeg version 3.3.2 Copyright (c) 2000-2017 the FFmpeg developers
built with Apple LLVM version 8.1.0 (clang-802.0.42)
configuration: --prefix=/usr/local/Cellar/ffmpeg/3.3.2 --enable-shared -- enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libass --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-opencl --enable-openssl --disable-lzma --enable-nonfree --enable-vda
libavutil 55. 58.100 / 55. 58.100
libavcodec 57. 89.100 / 57. 89.100
libavformat 57. 71.100 / 57. 71.100
libavdevice 57. 6.100 / 57. 6.100
libavfilter 6. 82.100 / 6. 82.100
libavresample 3. 5. 0 / 3. 5. 0
libswscale 4. 6.100 / 4. 6.100
libswresample 2. 7.100 / 2. 7.100
libpostproc 54. 5.100 / 54. 5.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'goodMovie.mov':
Metadata:
major_brand : qt
minor_version : 512
compatible_brands: qt
encoder : Lavf56.40.101
Duration: 00:02:11.84, start: 0.000000, bitrate: 13 kb/s
Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x800, 13 kb/s, 0.64 fps, 25 tbr, 12800 tbn, 50 tbc (default)
Metadata:
handler_name : DataHandler
encoder : Lavc56.60.100 libx264 -
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