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Autres articles (111)
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Récupération d’informations sur le site maître à l’installation d’une instance
26 novembre 2010, parUtilité
Sur le site principal, une instance de mutualisation est définie par plusieurs choses : Les données dans la table spip_mutus ; Son logo ; Son auteur principal (id_admin dans la table spip_mutus correspondant à un id_auteur de la table spip_auteurs)qui sera le seul à pouvoir créer définitivement l’instance de mutualisation ;
Il peut donc être tout à fait judicieux de vouloir récupérer certaines de ces informations afin de compléter l’installation d’une instance pour, par exemple : récupérer le (...) -
ANNEXE : Les plugins utilisés spécifiquement pour la ferme
5 mars 2010, parLe site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)
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Ajouter notes et légendes aux images
7 février 2011, parPour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
Une fois le plugin activé, vous pouvez le configurer dans l’espace de configuration afin de modifier les droits de création / modification et de suppression des notes. Par défaut seuls les administrateurs du site peuvent ajouter des notes aux images.
Modification lors de l’ajout d’un média
Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...)
Sur d’autres sites (11244)
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FFMPEG - How to accept inputs from other programs
18 mai 2017, par B HokI tried looking at the documentation and I even google it. Does anyone have any ideas on how or any general direction in doing this problem ?
I am trying to get the FFMPEG batch file to accept inputs from an outside program.
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Xuggle mp4 output (isom mp41 codec ?) issues
19 mai 2017, par JonSidesWe’re using Xuggler to create an mp4 from pictures, with no audio at this point. The mp4 we’re getting is playable locally, but cannot be embedded in a webpage or chromecast. I suspect the issue is that we’re getting an older ISOM mp41 codec that’s not supported by HTML5 and chromecast. That’s a guess based on this snippet of header info :
Internet media type : video/mp4
Codec ID : isom
Codec ID : isom (isom/iso2/mp41)
Codec ID/Url :
http://www.apple.com/quicktime/download/standalone.html
CodecID_Compatible : isom/iso2/mp41
Codec : MPEG-4
Codec : MPEG-4
Codec/Extensions usually used : mov mp4 m4v m4a m4b m4p 3ga 3gpa
3gpp 3gp 3gpp2 3g2 k3g jpm jpx mqv ismv isma ismt f4a f4b f4vI can embed and chromecast mp42 type files. So the first part of my question is Am I on the right track in looking at isom and mp41 ? And if so, can I get Xuggler to output using a newer codec ?
I can post the full header if that would be helpful.
The above snippet is from mediainfo. Here’s the whole thing, which is too long for a comment :
General
Count : 325
Count of stream of this kind : 1
Kind of stream : General
Kind of stream : General
Stream identifier : 0
Inform : MPEG-4 (Base Media) : 377 KiB, 12 s 301 ms
Count of video streams : 1
Video_Format_List : MPEG-4 Visual
Video_Format_WithHint_List : MPEG-4 Visual
Codecs Video : MPEG-4 Visual
Complete name : C :\Users\Jon\Desktop\vid-1.mp4
Folder name : C :\Users\Jon\Desktop
File name : vid-1
File extension : mp4
Format : MPEG-4
Format : MPEG-4
Format/Extensions usually used : mov mp4 m4v m4a m4b m4p 3ga 3gpa 3gpp 3gp 3gpp2 3g2 k3g jpm jpx mqv ismv isma ismt f4a f4b f4v
Commercial name : MPEG-4
Format profile : Base Media
Internet media type : video/mp4
Codec ID : isom
Codec ID : isom (isom/iso2/mp41)
Codec ID/Url :
http://www.apple.com/quicktime/download/standalone.html
CodecID_Compatible : isom/iso2/mp41
Codec : MPEG-4
Codec : MPEG-4
Codec/Extensions usually used : mov mp4 m4v m4a m4b m4p 3ga 3gpa 3gpp 3gp 3gpp2 3g2 k3g jpm jpx mqv ismv isma ismt f4a f4b f4v
File size : 386063
File size : 377 KiB
File size : 377 KiB
File size : 377 KiB
File size : 377 KiB
File size : 377.0 KiB
Duration : 12301
Duration : 12 s 301 ms
Duration : 12 s 301 ms
Duration : 12 s 301 ms
Duration : 00:00:12.301
Duration : 00:00:14:00
Duration : 00:00:12.301 (00:00:14:00)
Overall bit rate mode : CBR
Overall bit rate mode : Constant
Overall bit rate : 251077
Overall bit rate : 251 kb/s
Frame rate : 3.415
Frame rate : 3.415 FPS
Frame count : 42
Stream size : 1368
Stream size : 1.34 KiB (0%)
Stream size : 1 KiB
Stream size : 1.3 KiB
Stream size : 1.34 KiB
Stream size : 1.336 KiB
Stream size : 1.34 KiB (0%)
Proportion of this stream : 0.00354
HeaderSize : 36
DataSize : 384703
FooterSize : 1324
IsStreamable : No
File creation date : UTC 2017-05-05 19:49:25.209
File creation date (local) : 2017-05-05 15:49:25.209
File last modification date : UTC 2017-01-04 19:04:53.000
File last modification date (local) : 2017-01-04 15:04:53.000
Writing application : Lavf54.3.100
Writing application : Lavf54.3.100Video
Count : 338
Count of stream of this kind : 1
Kind of stream : Video
Kind of stream : Video
Stream identifier : 0
StreamOrder : 0
Inform : 250 kb/s, 200*200 (1.000), at
3.415 FPS, MPEG-4 Visual (Simple@L1)
ID : 1
ID : 1
Format : MPEG-4 Visual
Commercial name : MPEG-4 Visual
Format profile : Simple@L1
Format settings, BVOP : No
Format settings, BVOP : No
Format settings, QPel : No
Format settings, QPel : No
Format settings, GMC : 0
Format settings, GMC : No warppoints
Format settings, Matrix : Default (H.263)
Format settings, Matrix : Default (H.263)
Internet media type : video/MP4V-ES
Codec ID : 20
Codec : MPEG-4V
Codec : MPEG-4 Visual
Codec/Family : MPEG-4V
Codec/CC : 20
Codec profile : Simple@L1
Codec settings, Packet bitstream : No
Codec settings, BVOP : No
Codec settings, QPel : No
Codec settings, GMC : 0
Codec settings, GMC : No warppoints
Codec settings, Matrix : Default (H.263)
Duration : 12301
Duration : 12 s 301 ms
Duration : 12 s 301 ms
Duration : 12 s 301 ms
Duration : 00:00:12.301
Duration : 00:00:14:00
Duration : 00:00:12.301 (00:00:14:00)
Bit rate mode : CBR
Bit rate mode : Constant
Bit rate : 250207
Bit rate : 250 kb/s
Width : 200
Width : 200 pixels
Height : 200
Height : 200 pixels
Sampled_Width : 200
Sampled_Height : 200
Pixel aspect ratio : 1.000
Display aspect ratio : 1.000
Display aspect ratio : 1.000
Rotation : 0.000
Frame rate mode : VFR
Frame rate mode : Variable
Frame rate : 3.415
Frame rate : 3.415 FPS
Minimum frame rate : 3.333
Minimum frame rate : 3.333 FPS
Maximum frame rate : 65535.000
Maximum frame rate : 65 535.000 FPS
Frame count : 42
Resolution : 8
Resolution : 8 bits
Colorimetry : 4:2:0
Color space : YUV
Chroma subsampling : 4:2:0
Chroma subsampling : 4:2:0
Bit depth : 8
Bit depth : 8 bits
Scan type : Progressive
Scan type : Progressive
Interlacement : PPF
Interlacement : Progressive
Compression mode : Lossy
Compression mode : Lossy
Bits/(Pixel*Frame) : 1.832
Stream size : 384695
Stream size : 376 KiB (100%)
Stream size : 376 KiB
Stream size : 376 KiB
Stream size : 376 KiB
Stream size : 375.7 KiB
Stream size : 376 KiB (100%)
Proportion of this stream : 0.99646
Writing library : Lavc54.14.101
Writing library : Lavc54.14.101 -
How do I properly reduce the resolution of a 360 video using ffmpeg ?
10 avril 2017, par user3799235I have tried reduction with the following technique from a scale of
2048:1024with something like :ffmpeg -i eagle360half.mp4 -vf scale=1024:512 video360_1024.mp4however the playback then becomes warped and warbly (visually similar to a bad vhs tape). I can only speculate that this has something to do with the meridians and equirectangular projections. How would I properly scale/ reduce resolution of a 360 video usingffmpeg, or is this possible with some other cli tool ?Here is the output of mediainfo, ffmpeg, and then mediainfo again :
#######################MEDIAINFO OUTPUT PRE-ENCODING#################
$ mediainfo 360timessquare.mp4
General
Complete name : 360timessquare.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42
File size : 235 MiB
Duration : 14mn 18s
Overall bit rate mode : Variable
Overall bit rate : 2 297 Kbps
Encoded date : UTC 2016-10-21 19:11:41
Tagged date : UTC 2016-10-21 19:11:41
gsst : 0
gstd : 858209
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L3.1
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 14mn 18s
Bit rate : 2 168 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.094
Stream size : 222 MiB (94%)
Title : ISO Media file produced by Google Inc.
Encoded date : UTC 2016-10-21 19:11:41
Tagged date : UTC 2016-10-21 19:11:41
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 14mn 18s
Bit rate mode : Variable
Bit rate : 126 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 12.8 MiB (5%)
Title : ISO Media file produced by Google Inc.
Encoded date : UTC 2016-10-21 19:11:41
Tagged date : UTC 2016-10-21 19:11:41
########################FFMPEG LOG:#############################
$ffmpeg -i 360timessquare.mp4 -s 542x320 -o 360timessquare542x320.mp4
ffmpeg version 2.4 Copyright (c) 2000-2014 the FFmpeg developers
built on Sep 26 2015 22:27:26 with gcc 4.8.3 (GCC) 20140911 (Red Hat 4.8.3-9)
configuration: --prefix=/usr --bindir=/usr/bin --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --extra-libs=-ldl --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libfreetype --enable-fontconfig --enable-libspeex --enable-libtheora --enable-frei0r --enable-libopencv --enable-zlib --enable-shared --disable-htmlpages --disable-podpages --disable-txtpages
libavutil 54. 7.100 / 54. 7.100
libavcodec 56. 1.100 / 56. 1.100
libavformat 56. 4.101 / 56. 4.101
libavdevice 56. 0.100 / 56. 0.100
libavfilter 5. 1.100 / 5. 1.100
libswscale 3. 0.100 / 3. 0.100
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 0.100 / 53. 0.100
Unrecognized option 'o'.
Error splitting the argument list: Option not found
[kevin@clipcentric 360Video]$ ffmpeg -i 360timessquare.mp4 -vf -s 542x320 360timessquare542x320.mp4
ffmpeg version 2.4 Copyright (c) 2000-2014 the FFmpeg developers
built on Sep 26 2015 22:27:26 with gcc 4.8.3 (GCC) 20140911 (Red Hat 4.8.3-9)
configuration: --prefix=/usr --bindir=/usr/bin --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --extra-libs=-ldl --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libfreetype --enable-fontconfig --enable-libspeex --enable-libtheora --enable-frei0r --enable-libopencv --enable-zlib --enable-shared --disable-htmlpages --disable-podpages --disable-txtpages
libavutil 54. 7.100 / 54. 7.100
libavcodec 56. 1.100 / 56. 1.100
libavformat 56. 4.101 / 56. 4.101
libavdevice 56. 0.100 / 56. 0.100
libavfilter 5. 1.100 / 5. 1.100
libswscale 3. 0.100 / 3. 0.100
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 0.100 / 53. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '360timessquare.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2016-10-21 19:11:41
Duration: 00:14:18.09, start: 0.000000, bitrate: 2296 kb/s
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 2168 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc (default)
Metadata:
creation_time : 2016-10-21 19:11:41
handler_name : ISO Media file produced by Google Inc.
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
Metadata:
creation_time : 2016-10-21 19:11:41
handler_name : ISO Media file produced by Google Inc.
[NULL @ 0x14a0120] Unable to find a suitable output format for '542x320'
542x320: Invalid argument
[kevin@clipcentric 360Video]$ ffmpeg -i 360timessquare.mp4 -s 542x320 360timessquare542x320.mp4
ffmpeg version 2.4 Copyright (c) 2000-2014 the FFmpeg developers
built on Sep 26 2015 22:27:26 with gcc 4.8.3 (GCC) 20140911 (Red Hat 4.8.3-9)
configuration: --prefix=/usr --bindir=/usr/bin --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --extra-libs=-ldl --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libfreetype --enable-fontconfig --enable-libspeex --enable-libtheora --enable-frei0r --enable-libopencv --enable-zlib --enable-shared --disable-htmlpages --disable-podpages --disable-txtpages
libavutil 54. 7.100 / 54. 7.100
libavcodec 56. 1.100 / 56. 1.100
libavformat 56. 4.101 / 56. 4.101
libavdevice 56. 0.100 / 56. 0.100
libavfilter 5. 1.100 / 5. 1.100
libswscale 3. 0.100 / 3. 0.100
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 0.100 / 53. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '360timessquare.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2016-10-21 19:11:41
Duration: 00:14:18.09, start: 0.000000, bitrate: 2296 kb/s
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 2168 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc (default)
Metadata:
creation_time : 2016-10-21 19:11:41
handler_name : ISO Media file produced by Google Inc.
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
Metadata:
creation_time : 2016-10-21 19:11:41
handler_name : ISO Media file produced by Google Inc.
[libx264 @ 0x25f7a60] using SAR=2560/2439
[libx264 @ 0x25f7a60] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
[libx264 @ 0x25f7a60] profile High, level 2.1
[libx264 @ 0x25f7a60] 264 - core 142 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to '360timessquare542x320.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
encoder : Lavf56.4.101
Stream #0:0(und): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 542x320 [SAR 2560:2439 DAR 16:9], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)
Metadata:
creation_time : 2016-10-21 19:11:41
handler_name : ISO Media file produced by Google Inc.
encoder : Lavc56.1.100 libx264
Stream #0:1(und): Audio: aac (libfdk_aac) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, s16, 128 kb/s (default)
Metadata:
creation_time : 2016-10-21 19:11:41
handler_name : ISO Media file produced by Google Inc.
encoder : Lavc56.1.100 libfdk_aac
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Stream #0:1 -> #0:1 (aac (native) -> aac (libfdk_aac))
Press [q] to stop, [?] for help
frame=21452 fps= 66 q=-1.0 Lsize= 64454kB time=00:14:18.09 bitrate= 615.3kbits/s
video:50428kB audio:13439kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.918954%
[libx264 @ 0x25f7a60] frame I:86 Avg QP:19.09 size: 45669
[libx264 @ 0x25f7a60] frame P:18026 Avg QP:22.11 size: 2541
[libx264 @ 0x25f7a60] frame B:3340 Avg QP:29.11 size: 572
[libx264 @ 0x25f7a60] consecutive B-frames: 75.9% 6.9% 9.6% 7.6%
[libx264 @ 0x25f7a60] mb I I16..4: 3.4% 30.9% 65.7%
[libx264 @ 0x25f7a60] mb P I16..4: 0.1% 0.3% 0.3% P16..4: 25.1% 6.6% 7.4% 0.0% 0.0% skip:60.2%
[libx264 @ 0x25f7a60] mb B I16..4: 0.0% 0.1% 0.1% B16..8: 13.3% 2.4% 1.3% direct: 1.9% skip:81.0% L0:25.9% L1:66.1% BI: 8.0%
[libx264 @ 0x25f7a60] 8x8 transform intra:38.5% inter:48.3%
[libx264 @ 0x25f7a60] coded y,uvDC,uvAC intra: 81.5% 84.3% 58.6% inter: 14.3% 14.5% 2.8%
[libx264 @ 0x25f7a60] i16 v,h,dc,p: 7% 49% 7% 37%
[libx264 @ 0x25f7a60] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12% 25% 17% 5% 7% 7% 11% 8% 9%
[libx264 @ 0x25f7a60] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 18% 14% 7% 8% 10% 11% 9% 7%
[libx264 @ 0x25f7a60] i8c dc,h,v,p: 51% 25% 15% 9%
[libx264 @ 0x25f7a60] Weighted P-Frames: Y:1.5% UV:0.3%
[libx264 @ 0x25f7a60] ref P L0: 77.6% 15.9% 5.2% 1.3% 0.0%
[libx264 @ 0x25f7a60] ref B L0: 94.0% 5.1% 0.9%
[libx264 @ 0x25f7a60] ref B L1: 96.1% 3.9%
[libx264 @ 0x25f7a60] kb/s:481.43
#################POST ENCODING #####################
$ mediainfo 360timessquare542x320.mp4
General
Complete name : 360timessquare542x320.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 62.9 MiB
Duration : 14mn 18s
Overall bit rate : 615 Kbps
Encoded date : UTC 1904-01-01 00:00:00
Tagged date : UTC 1904-01-01 00:00:00
Writing application : Lavf56.4.101
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L2.1
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 14mn 18s
Bit rate : 481 Kbps
Width : 542 pixels
Height : 320 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.111
Stream size : 49.2 MiB (78%)
Writing library : x264 core 142
Encoding settings : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=3 / lookahead_threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=crf / mbtree=1 / crf=23.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Encoded date : UTC 1904-01-01 00:00:00
Tagged date : UTC 1904-01-01 00:00:00
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 14mn 18s
Bit rate mode : Constant
Bit rate : 128 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 13.1 MiB (21%)
Encoded date : UTC 1904-01-01 00:00:00
Tagged date : UTC 1904-01-01 00:00:00
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