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  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • Les formats acceptés

    28 janvier 2010, par

    Les 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 (...)

Sur d’autres sites (10343)

  • ffmpeg override the same file for every second of the video [on hold]

    5 février 2017, par Dorin Pleava

    I want to get one image for every 10 seconds from a livestream/video, but the image should have the same name, meaning I want to override it every cycle.

    This is my command :

    ffmpeg.exe -i http://iphone-streaming.ustream.tv/uhls/17074538/streams/live/iphone/playlist.m3u8 -bt 20M -s 480x300 -vf fps=1/10 -y photo.jpg

    This code works for one image but for the next I get this

    "Could not get frame filename number 2 from pattern ’photo.jpg’ (either set updatefirst or use a pattern like %03d within the filename pattern)
    av_interleaved_write_frame() : Invalid argument"

    If I replace photo.jpeg with photo%03d.jpg I get photo001.jpec, followed by photo002.jpeg, etc.

  • Is there a method to identify the audio channel layout ?

    2 septembre 2016, par Pony

    A video file has many channels, and each channel is contained in a stream, e.g.

    libavutil      52. 38.100 / 52. 38.100
    
libavcodec     55. 18.102 / 55. 18.102
    
libavformat    55. 12.100 / 55. 12.100
    
libavdevice    55.  3.100 / 55.  3.100
    
libavfilter     3. 79.101 /  3. 79.101
    
libswscale      2.  3.100 /  2.  3.100
    
libswresample   0. 17.102 /  0. 17.102
    
libpostproc    52.  3.100 / 52.  3.100
    
Guessed Channel Layout for  Input Stream #0.1 : mono
    
Guessed Channel Layout for  Input Stream #0.2 : mono
    
Guessed Channel Layout for  Input Stream #0.3 : mono
    
Guessed Channel Layout for  Input Stream #0.4 : mono
    
Guessed Channel Layout for  Input Stream #0.5 : mono
    
Guessed Channel Layout for  Input Stream #0.6 : mono
    
Guessed Channel Layout for  Input Stream #0.7 : mono
    
Guessed Channel Layout for  Input Stream #0.8 : mono
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/data/tmp/ff6.mov':
    
Metadata:
    
major_brand     : qt  
    
minor_version   : 537199360
    
compatible_brands: qt  
    
creation_time   : 2015-01-16 17:54:47
    
Duration: 00:01:54.00, start: 0.000000, bitrate: 160836 kb/s
    
Stream #0:0(eng): Video: prores (apch / 0x68637061), yuv422p10le, 1920x1080, 154650 kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 25 tbn, 25 tbc
    
Metadata:
    
  creation_time   : 2015-01-16 17:54:47
    
  handler_name    : Apple Alias Data Handler
    
  timecode        : 00:59:55:00
    
Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16, 768 kb/s
    
Metadata:
    
  creation_time   : 2015-01-16 17:54:47
    
  handler_name    : Apple Alias Data Handler
    
Stream #0:2(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16, 768 kb/s
    
Metadata:
    
  creation_time   : 2015-01-16 17:54:47
    
  handler_name    : Apple Alias Data Handler
    
Stream #0:3(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16, 768 kb/s
    
Metadata:
    
  creation_time   : 2015-01-16 17:54:47
    
  handler_name    : Apple Alias Data Handler
    
Stream #0:4(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16, 768 kb/s
    
Metadata:
    
  creation_time   : 2015-01-16 17:54:47
    
  handler_name    : Apple Alias Data Handler
    
Stream #0:5(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16, 768 kb/s
    
Metadata:
    
  creation_time   : 2015-01-16 17:54:47
    
  handler_name    : Apple Alias Data Handler
    
Stream #0:6(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16, 768 kb/s
    
Metadata:
    
  creation_time   : 2015-01-16 17:54:47
    
  handler_name    : Apple Alias Data Handler
    
Stream #0:7(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16, 768 kb/s
    
Metadata:
    
  creation_time   : 2015-01-16 17:54:47
    
  handler_name    : Apple Alias Data Handler
    
Stream #0:8(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16, 768 kb/s
    
Metadata:
    
  creation_time   : 2015-01-16 17:54:47
    
  handler_name    : Apple Alias Data Handler
    
Stream #0:9(eng): Data: none (tmcd / 0x64636D74)
    
Metadata:
    
  creation_time   : 2015-01-16 17:55:17
    
  handler_name    : Apple Alias Data Handler
    
  timecode        : 00:59:55:00

    Is there a method to identify which stream represents the left channel, and which represent right channel, and so on.
    Thanks for reviewing my question.

  • ffmpeg : How to create multi playlist m3u8 ?

    21 août 2018, par noc

    I have an example :

    ffmpeg -loglevel debug -threads 4 -vsync 1 -i 'bunny.mp4' -vf yadif -g 29.97 -r 29.97 -b:v:0 5250k -c:v h264_nvenc -preset llhq -vcodec vbr_hq -pix_fmt yuv420p -profile:v main -level 4.1 -strict_gop 1 -rc-lookahead 32 -no-scenecut 1 -forced-idr 1 -gpu 0 -b:v:1 4200k -c:v h264_nvenc -preset llhq -rc:v vbr_hq -pix_fmt yuv420p -profile:v main -level 4.1 -strict_gop 1 -rc-lookahead 32 -no-scenecut 1 -forced-idr 1 -gpu 1 -b:v:1 3150k -c:v h264_nvenc -preset llhq -rc:v vbr_hq -pix_fmt yuv420p -profile:v main -level 4.1 -strict_gop 1 -rc-lookahead 32 -no-scenecut 1 -forced-idr 1 -gpu 2 -b:a:0 256k -b:a:0 192k -b:a:0 128k -c:a aac -ar 48000  -map 0:v -map 0:a:0 -map 0:v -map 0:a:0 -map 0:v -map 0:a:0 -f hls -var_stream_map "v:0,a:0  v:1,a:1 v:2,a:2" -master_pl_name  master.m3u8 -t 300 -hls_time 10 -hls_init_time 4 -hls_list_size 10 -master_pl_publish_rate 10 -hls_flags delete_segments+discont_start+split_by_time "out/manifest.m3u8"

    but alltime a have error like :
    Unrecognized option ’rc:v’
    Unrecognized option ’strict_gop’

    I’d like to create the playlist like this :

    #EXTM3U
    
#EXT-X-STREAM-INF:PROGRAM-ID=1, BANDWIDTH=688301
    
http://qthttp.apple.com.edgesuite.net/1010qwoeiuryfg/0640_vod.m3u8
    
#EXT-X-STREAM-INF:PROGRAM-ID=1, BANDWIDTH=165135
    
http://qthttp.apple.com.edgesuite.net/1010qwoeiuryfg/0150_vod.m3u8
    
#EXT-X-STREAM-INF:PROGRAM-ID=1, BANDWIDTH=262346
    
http://qthttp.apple.com.edgesuite.net/1010qwoeiuryfg/0240_vod.m3u8
    
#EXT-X-STREAM-INF:PROGRAM-ID=1, BANDWIDTH=481677
    
http://qthttp.apple.com.edgesuite.net/1010qwoeiuryfg/0440_vod.m3u8
    
#EXT-X-STREAM-INF:PROGRAM-ID=1, BANDWIDTH=1308077
    
http://qthttp.apple.com.edgesuite.net/1010qwoeiuryfg/1240_vod.m3u8
    
#EXT-X-STREAM-INF:PROGRAM-ID=1, BANDWIDTH=1927853
    
http://qthttp.apple.com.edgesuite.net/1010qwoeiuryfg/1840_vod.m3u8
    
#EXT-X-STREAM-INF:PROGRAM-ID=1, BANDWIDTH=2650941
    
http://qthttp.apple.com.edgesuite.net/1010qwoeiuryfg/2540_vod.m3u8
    
#EXT-X-STREAM-INF:PROGRAM-ID=1, BANDWIDTH=3477293
    
http://qthttp.apple.com.edgesuite.net/1010qwoeiuryfg/3340_vod.m3u8

    with ability to choose quality in player (videojs)

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