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Médias (91)
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Géodiversité
9 septembre 2011, par ,
Mis à jour : Août 2018
Langue : français
Type : Texte
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USGS Real-time Earthquakes
8 septembre 2011, par
Mis à jour : Septembre 2011
Langue : français
Type : Texte
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SWFUpload Process
6 septembre 2011, par
Mis à jour : Septembre 2011
Langue : français
Type : Texte
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La conservation du net art au musée. Les stratégies à l’œuvre
26 mai 2011
Mis à jour : Juillet 2013
Langue : français
Type : Texte
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Podcasting Legal guide
16 mai 2011, par
Mis à jour : Mai 2011
Langue : English
Type : Texte
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Creativecommons informational flyer
16 mai 2011, par
Mis à jour : Juillet 2013
Langue : English
Type : Texte
Autres articles (51)
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HTML5 audio and video support
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For older browsers the Flowplayer flash fallback is used.
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Support audio et vidéo HTML5
10 avril 2011MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
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Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...) -
Librairies et binaires spécifiques au traitement vidéo et sonore
31 janvier 2010, parLes logiciels et librairies suivantes sont utilisées par SPIPmotion d’une manière ou d’une autre.
Binaires obligatoires FFMpeg : encodeur principal, permet de transcoder presque tous les types de fichiers vidéo et sonores dans les formats lisibles sur Internet. CF ce tutoriel pour son installation ; Oggz-tools : outils d’inspection de fichiers ogg ; Mediainfo : récupération d’informations depuis la plupart des formats vidéos et sonores ;
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Sur d’autres sites (7998)
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Ffmpeg live streaming to Youtube - "Connect streaming software to start preview"
10 septembre 2019, par Zoltan FedorI have an rtsp feed (H.265) which I am trying to stream to YouTube Live, but whatever I do YouTube Studio just showing the waiting icon with "Connect streaming software to start preview".
.sh file for streaming :
VBR="1000k"
FPS="30"
QUAL="ultrafast"
YOUTUBE_URL="rtmp://b.rtmp.youtube.com/live2"
SOURCE="rtsp://qhatever.org:8555/whatever.sdp"
KEY="xxxx-xxxx-xxxx-xxxx"
~/ffmpeg-git-20190905-amd64-static/ffmpeg \
-thread_queue_size 512 \
-rtsp_transport tcp -i "$SOURCE" \
-f lavfi -i anullsrc \
-vcodec libx264 -pix_fmt yuvj420p -preset $QUAL -r $FPS -g $(($FPS * 2)) -b:v 2250k -minrate $VBR -maxrate 6000k -bufsize 6000k -keyint_min 60 \
-acodec libmp3lame -ar 44100 -b:a 128k \
-f flv "$YOUTUBE_URL/$KEY"Ffmpeg’s output :
ffmpeg version N-49800-g2b66c757d6-static https://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-libgme --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzvbi --enable-libzimg
libavutil 56. 35.100 / 56. 35.100
libavcodec 58. 56.101 / 58. 56.101
libavformat 58. 32.104 / 58. 32.104
libavdevice 58. 9.100 / 58. 9.100
libavfilter 7. 58.102 / 7. 58.102
libswscale 5. 6.100 / 5. 6.100
libswresample 3. 6.100 / 3. 6.100
libpostproc 55. 6.100 / 55. 6.100
Input #0, rtsp, from 'rtsp://whatever.org:8555/whatever.sdp':
Metadata:
title : streamed by the Rtsp Server
comment : RTSP_STREAM_0
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0:0: Video: hevc (Main), yuvj420p(pc, bt709), 1920x1080, 30 fps, 30 tbr, 90k tbn, 30 tbc
Stream #0:1: Data: none
Input #1, lavfi, from 'anullsrc':
Duration: N/A, start: 0.000000, bitrate: 705 kb/s
Stream #1:0: Audio: pcm_u8, 44100 Hz, stereo, u8, 705 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (hevc (native) -> h264 (libx264))
Stream #1:0 -> #0:1 (pcm_u8 (native) -> mp3 (libmp3lame))
Press [q] to stop, [?] for help
[hevc @ 0x5fbfd80] Could not find ref with POC 4
[libx264 @ 0x5fb9d80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x5fb9d80] profile Constrained Baseline, level 4.0, 4:2:0, 8-bit
[libx264 @ 0x5fb9d80] 264 - core 157 r2969 d4099dd - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=60 keyint_min=31 scenecut=0 intra_refresh=0 rc_lookahead=0 rc=abr mbtree=0 bitrate=2250 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=6000 vbv_bufsize=6000 nal_hrd=none filler=0 ip_ratio=1.40 aq=0
Output #0, flv, to 'rtmp://b.rtmp.youtube.com/live2/xxxx-xxxx-xxxx-xxxx':
Metadata:
title : streamed by the Rtsp Server
comment : RTSP_STREAM_0
encoder : Lavf58.32.104
Stream #0:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuvj420p(pc, progressive), 1920x1080, q=-1--1, 2250 kb/s, 30 fps, 1k tbn, 30 tbc
Metadata:
encoder : Lavc58.56.101 libx264
Side data:
cpb: bitrate max/min/avg: 6000000/0/2250000 buffer size: 6000000 vbv_delay: N/A
Stream #0:1: Audio: mp3 (libmp3lame) ([2][0][0][0] / 0x0002), 44100 Hz, stereo, s16p, 128 kb/s
Metadata:
encoder : Lavc58.56.101 libmp3lame
frame= 522 fps=31 q=19.0 size= 8802Kb time=00:00:36:53 bitrate 2481.0kbits/s dup= drop=2 speed=1.01xBasically all looks good to me - still, in YouTube Studio only the waiting icon with the "Connect streaming software to start preview" message is visible, not video feed.
Any ideas ?
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How to remove "wrting library" from an MP3 file using ffmpeg ?
3 septembre 2022, par aveceuxI tried to remove the "writing library" entry from some of my mp3 files with ffmpeg, and this is the command I used :



ffmpeg -i input.mp3 -map_metadata -1 -c copy output.mp3




The command removed all the other tags, but the "writing library" still remained intact.



I've also tried other mp3 tag editing tools, but none of them did the job.



Here's the mediainfo of an example mp3 file :



Format : MPEG Audio
File size : 32.1 MiB
Duration : 1 h 9 min
Overall bit rate mode : Variable
Overall bit rate : 64.0 kb/s
Writing library : LAMEUUULAME3.91
Cover : Yes
Cover MIME : image/jpeg

Audio
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 3
Format settings : Joint stereo / MS Stereo
Duration : 1 h 9 min
Bit rate mode : Variable
Bit rate : 64.0 kb/s
Channel(s) : 2 channels
Sampling rate : 44.1 kHz
Frame rate : 38.281 FPS (1152 SPF)
Compression mode : Lossy
Stream size : 31.9 MiB (100%)
Writing library : LAMEUUULAME3.91




Any help would be greatly appreciated. Thank you.


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"Non-monotonous DTS in output stream 0:0 This may result in incorrect timestamps in the output file." error
1er août 2019, par petaireI’m trying to go from .mkv to .mp4 through ffmpeg. Normally I would use
ffmpeg -i $1 -codec copy -strict -2 $2
But on this particular file, I get this error, like, A LOT :
Non-monotonous DTS in output stream 0:0; previous: 49189232, current: 49189232; changing to 49189233. This may result in incorrect timestamps in the output file.
I guess it has something to do with the DTS :
[mp4 @ 0x7f8b14001200] Invalid DTS: 14832 PTS: 13552 in output stream 0:0, replacing by guess
[mp4 @ 0x7f8b14001200] Invalid DTS: 15472 PTS: 12272 in output stream 0:0, replacing by guessI would not care if the result was ok, but the sound is out of sync, and the video is "stuttering". Feels like everything is out of sync.
I’ve tried a lot of things, including -async 1 -vsync 1 , but nothing seems to work.
Here’s some mediainfo :
Complete name : /Users/petaire/Desktop/CNEWS-2019-07-23_16-00-00h.mkv
Format : Matroska
Format version : Version 2
File size : 1.19 GiB
Movie name : Time-2019-07-23_16:00
Writing application : Tvheadend 4.3-1801~g7f952c2ed
Writing library : Tvheadend Matroska muxer
Original source form : TV
Comment : Time recording
IsTruncated : Yes
DATE_BROADCASTED : 2019-07-23 16:00:00
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : V_MPEG4/ISO/AVC
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 fps
Standard : Component
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : MBAFF
Scan type, store method : Interleaved fields
Scan order : Top Field First
Language : English
Default : Yes
Forced : No
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Audio
ID : 2
Format : E-AC-3
Format/Info : Enhanced AC-3
Commercial name : Dolby Digital Plus
Codec ID : A_EAC3
Bit rate mode : Constant
Bit rate : 128 Kbps
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 KHz
Frame rate : 31.250 fps (1536 SPF)
Compression mode : Lossy
Delay relative to video : -757ms
Language : French
Service kind : Complete Main
Default : Yes
Forced : No
Text
ID : 3
Format : DVB Subtitle
Codec ID : S_DVBSUB
Codec ID/Info : Picture based subtitle format used on DVBs
Language : French
Default : Yes
Forced : NoAny idea ?