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Autres articles (25)
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Supporting all media types
13 avril 2011, parUnlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)
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Creating farms of unique websites
13 avril 2011, parMediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...) -
Soumettre bugs et patchs
10 avril 2011Un logiciel n’est malheureusement jamais parfait...
Si vous pensez avoir mis la main sur un bug, reportez le dans notre système de tickets en prenant bien soin de nous remonter certaines informations pertinentes : le type de navigateur et sa version exacte avec lequel vous avez l’anomalie ; une explication la plus précise possible du problème rencontré ; si possibles les étapes pour reproduire le problème ; un lien vers le site / la page en question ;
Si vous pensez avoir résolu vous même le bug (...)
Sur d’autres sites (2465)
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FFMPEG unexpected behavior inside nodejs Lambda function
29 juin 2021, par Rafael CasteloI'm trying to burn subtitles into a video using FFMPEG. I'm working within a serverless lambda architecture, and we've used FFMPEG with lambda by using layers before and everything worked okay.
Now I'm trying to burn subtitles inside a video using the following command :


ffmpeg -i https://some-bucket.s3.region.amazonaws.com/my-video.mp4 -f mp4 -vf subtitles=sub.srt subtitled-video.mp4


The issue is, that command works perfectly inside my local machine or any other instance I try. However inside my lambda function, I just get the original video without the subtitles.
At first I thought it could be the ffmpeg build I was using, but after trying wiht it, it worked in every other environment I tried.


Also I don't get any error in the output from the ffmpeg job inside lambda, everything seeems to work okay. Just that it doesn't burn the subtitles


I hope you can help me with this issue. Or at least point me in the right direction.


Thanks in advance


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Unable to find a suitable output format for 'protocols'
10 mai 2018, par Perl DenielI was trying to analyse a video with ffmpeg and it gives this error. I have referred to other sources but those solutions do not seem to work.
[NULL @ 0x24eb600] Unable to find a suitable output format for 'protocols'
protocols: Invalid argumentI have a video currently hosting on Google Cloud Storage and I want to use
ffprobeto study its orientation. This is the command I use.ffprobe -v error -show_streams -show_format https://storage.googleapis.com/bucket/filename.mp4 | grep rotationI am currently running on Debian Jessie and I installed
ffmpegfrom source.Here’s my installation script
cd ffmpeg-3.4.1
./configure --enable-shared
make
make install
ldconfigCan anyone tell me how to solve this ?
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Why does this ffmpeg filter result in an "Invalid Size" error ?
10 avril 2019, par pdoherty926Why do I see this error message :
[Parsed_scale_0 @ 0x559a264c28a0] Invalid size ’if(gt(iw’
[AVFilterGraph @ 0x559a268a19e0] Error initializing filter ’scale’
with args ’if(gt(iw’ Error initializing complex filters.
Invalid argument
when trying to crop a video using ffmpeg and the following complex filter :
ffmpeg -f mp4 -ss 01:24 \
-i https://storage.googleapis.com/bucket/video.mp4 \
-y \
-filter_complex scale='if(gt(iw,ih),-1,616):if(gt(iw,ih),1440,-1)', crop=1440:616 \
-an \
-vcodec libx264 \
-r 60 -pix_fmt yuv420p \
-movflags faststart \
-f mp4 \
-t 1 \
/tmp/asset.1554913197962.mp4In case it’s relevant, here’s the output of ffprobe :
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'https://storage.googleapis.com/bucket/video.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.56.101
Duration: 00:02:53.76, start: 0.000000, bitrate: 2910 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 2777 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
Metadata:
handler_name : SoundHandler
"streams": [
{
"index": 0,
"codec_name": "h264",
"codec_long_name": "H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10",
"profile": "High",
"codec_type": "video",
"codec_time_base": "1001/60000",
"codec_tag_string": "avc1",
"codec_tag": "0x31637661",
"width": 1920,
"height": 1080,
"coded_width": 1920,
"coded_height": 1080,
"has_b_frames": 1,
"sample_aspect_ratio": "1:1",
"display_aspect_ratio": "16:9",
"pix_fmt": "yuv420p",
"level": 40,
"color_range": "tv",
"color_space": "bt709",
"color_transfer": "bt709",
"color_primaries": "bt709",
"chroma_location": "left",
"refs": 1,
"is_avc": "true",
"nal_length_size": "4",
"r_frame_rate": "30000/1001",
"avg_frame_rate": "30000/1001",
"time_base": "1/90000",
"start_pts": 0,
"start_time": "0.000000",
"duration_ts": 15633630,
"duration": "173.707000",
"bit_rate": "2777254",
"bits_per_raw_sample": "8",
"nb_frames": "5206",
"disposition": {
"default": 1,
"dub": 0,
"original": 0,
"comment": 0,
"lyrics": 0,
"karaoke": 0,
"forced": 0,
"hearing_impaired": 0,
"visual_impaired": 0,
"clean_effects": 0,
"attached_pic": 0,
"timed_thumbnails": 0
},
"tags": {
"language": "und",
"handler_name": "VideoHandler"
}
},
{
"index": 1,
"codec_name": "aac",
"codec_long_name": "AAC (Advanced Audio Coding)",
"profile": "LC",
"codec_type": "audio",
"codec_time_base": "1/44100",
"codec_tag_string": "mp4a",
"codec_tag": "0x6134706d",
"sample_fmt": "fltp",
"sample_rate": "44100",
"channels": 2,
"channel_layout": "stereo",
"bits_per_sample": 0,
"r_frame_rate": "0/0",
"avg_frame_rate": "0/0",
"time_base": "1/44100",
"start_pts": 0,
"start_time": "0.000000",
"duration_ts": 7662596,
"duration": "173.755011",
"bit_rate": "125588",
"max_bit_rate": "125588",
"nb_frames": "7483",
"disposition": {
"default": 1,
"dub": 0,
"original": 0,
"comment": 0,
"lyrics": 0,
"karaoke": 0,
"forced": 0,
"hearing_impaired": 0,
"visual_impaired": 0,
"clean_effects": 0,
"attached_pic": 0,
"timed_thumbnails": 0
},
"tags": {
"language": "eng",
"handler_name": "SoundHandler"
}
}
],
"format": {
"filename": "https://storage.googleapis.com/bucket/video.mp4",
"nb_streams": 2,
"nb_programs": 0,
"format_name": "mov,mp4,m4a,3gp,3g2,mj2",
"format_long_name": "QuickTime / MOV",
"start_time": "0.000000",
"duration": "173.755000",
"size": "63209767",
"bit_rate": "2910294",
"probe_score": 100,
"tags": {
"major_brand": "isom",
"minor_version": "512",
"compatible_brands": "isomiso2avc1mp41",
"encoder": "Lavf57.56.101"
}
}
}
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