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Revolution of Open-source and film making towards open film making
6 octobre 2011, par
Mis à jour : Juillet 2013
Langue : English
Type : Texte
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Diogene : création de masques spécifiques de formulaires d’édition de contenus
26 octobre 2010, parDiogene est un des plugins ? SPIP activé par défaut (extension) lors de l’initialisation de MediaSPIP.
A quoi sert ce plugin
Création de masques de formulaires
Le plugin Diogène permet de créer des masques de formulaires spécifiques par secteur sur les trois objets spécifiques SPIP que sont : les articles ; les rubriques ; les sites
Il permet ainsi de définir en fonction d’un secteur particulier, un masque de formulaire par objet, ajoutant ou enlevant ainsi des champs afin de rendre le formulaire (...) -
Utilisation et configuration du script
19 janvier 2011, parInformations spécifiques à la distribution Debian
Si vous utilisez cette distribution, vous devrez activer les dépôts "debian-multimedia" comme expliqué ici :
Depuis la version 0.3.1 du script, le dépôt peut être automatiquement activé à la suite d’une question.
Récupération du script
Le script d’installation peut être récupéré de deux manières différentes.
Via svn en utilisant la commande pour récupérer le code source à jour :
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Revision 6783 : On va utiliser l’inclure de forum de base soit de Zpip soit de comments ...
6 juillet 2012, par kent1 — LogOn va utiliser l’inclure de forum de base soit de Zpip soit de comments
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How to execute this ffmpeg command for multiple videos in a folder and rename them on Linux terminal [duplicate]
3 février 2023, par average_grad_studentI'm trying to change the framerate of my video to 15fps and I need to do that for 100+ videos that are in the same folder


For processing a single video I use the following command-

ffmpeg -i input.mp4 -filter:v fps=fps=15 processed/input_15fpst.mp4


How do I do this for multiple videos in the folder and add a suffix _15fps to them ? I'm not very familiar with Linux programming


Thank you so much !


I tried doing this-

for f in *.MP4; do ffmpeg -i "$f" -filter:v fps=fps=15 process/"$f"; done


But I want to rename the file as well, how do I change my loop ?


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C++ Boost launching FFMPEG doesnt work, working ok via terminal
21 juin 2023, par Pit DiggerI am launching an FFMPEG process from C++ , the command is workign fine from terminal command line, but gives error when laucnhed from code. What could cause this ?


Error


[AVFilterGraph @ 0x3cfadc0] Error parsing filterchain "[0:v]split=3[v1][v2][v3];[v1]copy[v1out];[v2]scale=w=1280:h=720[v2out];[v3]scale=w=640:h=360[v3out]"
 
[AVFilterGraph @ 0x2f9fb00] Error parsing filterchain 
 
[AVFilterGraph @ 0x3cfadc0] Trailing garbage after a filter: split=3[v1][v2][v3];[v1]copy[v1out];[v2]scale=w=1280:h=720[v2out];[v3]scale=w=640:h=360[v3out]



Code


std::vector args;
args.push_back("-i"); args.push_back("input.mp4");
args.push_back("-filter_complex");
args.push_back("\"[0:v]split=3[v1][v2][v3];[v1]copy[v1out];[v2]scale=w=1280:h=720[v2out];[v3]scale=w=640:h=360[v3out]\"");

args.push_back("-map"); args.push_back("[v1out]");
args.push_back("-c:v:0"); args.push_back("libx264");
args.push_back("-x264-params"); args.push_back("\"nal-hrd=cbr:force-cfr=1\"");
args.push_back("-b:v:0"); args.push_back("1M");
args.push_back("-maxrate:v:0"); args.push_back("2M");
args.push_back("-minrate:v:0"); args.push_back("2M");
args.push_back("-bufsize:v:0"); args.push_back("2M");
args.push_back("-preset"); args.push_back("fast");
args.push_back("-g"); args.push_back("48");
args.push_back("-sc_threshold"); args.push_back("0");
args.push_back("-keyint_min"); args.push_back("48");

args.push_back("-map"); args.push_back("[v2out]");
args.push_back("-c:v:1"); args.push_back("libx264");
args.push_back("-x264-params"); args.push_back("\"nal-hrd=cbr:force-cfr=1\"");
args.push_back("-b:v:1"); args.push_back("1M");
args.push_back("-maxrate:v:1"); args.push_back("1M");
args.push_back("-minrate:v:1"); args.push_back("1M");
args.push_back("-bufsize:v:1"); args.push_back("1M");
args.push_back("-preset"); args.push_back("fast");
args.push_back("-g"); args.push_back("48");
args.push_back("-sc_threshold"); args.push_back("0");
args.push_back("-keyint_min"); args.push_back("48");

args.push_back("-map"); args.push_back("[v3out]");
args.push_back("-c:v:2"); args.push_back("libx264");
args.push_back("-x264-params"); args.push_back("\"nal-hrd=cbr:force-cfr=1\"");
args.push_back("-b:v:2"); args.push_back("500K");
args.push_back("-maxrate:v:2"); args.push_back("500K");
args.push_back("-minrate:v:2"); args.push_back("500K");
args.push_back("-bufsize:v:2"); args.push_back("500K");
args.push_back("-preset"); args.push_back("fast");
args.push_back("-g"); args.push_back("48");
args.push_back("-sc_threshold"); args.push_back("0");
args.push_back("-keyint_min"); args.push_back("48");

args.push_back("-map"); args.push_back("a:0");
args.push_back("-c:a:0"); args.push_back("aac");
args.push_back("-b:a:0"); args.push_back("96k");
args.push_back("-ac"); args.push_back("2");
args.push_back("-map"); args.push_back("a:0");
args.push_back("-c:a:1"); args.push_back("aac");
args.push_back("-b:a:1"); args.push_back("96k");
args.push_back("-ac"); args.push_back("2");
args.push_back("-map"); args.push_back("a:0");
args.push_back("-c:a:2"); args.push_back("aac");
args.push_back("-b:a:2"); args.push_back("48k");
args.push_back("-ac"); args.push_back("2");

args.push_back("-avoid_negative_ts"); args.push_back("1");
args.push_back("-f"); args.push_back("hls");
args.push_back("-hls_time"); args.push_back("6");
args.push_back("-hls_list_size"); args.push_back("15");
args.push_back("-hls_flags"); args.push_back("independent_segments");
args.push_back("-hls_segment_type"); args.push_back("mpegts");
args.push_back("-hls_segment_filename"); args.push_back("/output/stream_%v_data%02d.ts");
args.push_back("-master_pl_name"); args.push_back("index.m3u8");
args.push_back("-var_stream_map"); args.push_back("\"v:0,a:0 v:1,a:1 v:2,a:2\"");
args.push_back("/output/stream_%v.m3u8");


m_childProcess = std::make_unique(
 bp::exe = ffmpegPath,
 bp::args = args);



Command that above code builds (indented for visibility) :


ffmpeg -i input.mp4 -c copy -filter_complex "[0:v]split=3[v1][v2][v3];[v1]copy[v1out];[v2]scale=w=1280:h=720[v2out];[v3]scale=w=640:h=360[v3out]" 
-map [v1out] -c:v:0 libx264 -x264-params "nal-hrd=cbr:force-cfr=1" -b:v:0 1M -maxrate:v:0 2M -minrate:v:0 2M -bufsize:v:0 2M -preset fast -g 48 -sc_threshold 0 -keyint_min 48 
-map [v2out] -c:v:1 libx264 -x264-params "nal-hrd=cbr:force-cfr=1" -b:v:1 1M -maxrate:v:1 1M -minrate:v:1 1M -bufsize:v:1 1M -preset fast -g 48 -sc_threshold 0 -keyint_min 48 
-map [v3out] -c:v:2 libx264 -x264-params "nal-hrd=cbr:force-cfr=1" -b:v:2 500K -maxrate:v:2 500K -minrate:v:2 500K -bufsize:v:2 500K -preset fast -g 48 -sc_threshold 0 -keyint_min 48 -map a:0 -c:a:0 aac -b:a:0 96k -ac 2 
-map a:0 -c:a:1 aac -b:a:1 96k -ac 2 -map a:0 -c:a:2 aac -b:a:2 48k -ac 2 
-avoid_negative_ts 1 -f hls -hls_time 6 -hls_list_size 15 -hls_flags independent_segments -hls_segment_type mpegts -hls_segment_filename /output/stream_%v_data%02d.ts -master_pl_name index.m3u8 -var_stream_map "v:0,a:0 v:1,a:1 v:2,a:2" /output/stream_%v.m3u8