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ED-ME-5 1-DVD
11 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Audio
Autres articles (52)
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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 (...) -
Déploiements possibles
31 janvier 2010, parDeux types de déploiements sont envisageable dépendant de deux aspects : La méthode d’installation envisagée (en standalone ou en ferme) ; Le nombre d’encodages journaliers et la fréquentation envisagés ;
L’encodage de vidéos est un processus lourd consommant énormément de ressources système (CPU et RAM), il est nécessaire de prendre tout cela en considération. Ce système n’est donc possible que sur un ou plusieurs serveurs dédiés.
Version mono serveur
La version mono serveur consiste à n’utiliser qu’une (...) -
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 ;
Binaires complémentaires et facultatifs flvtool2 : (...)
Sur d’autres sites (9209)
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ffpmeg drops last frame when compressing from MP4 to MP4 (libx264)
28 octobre 2018, par UsoboiSo, I’m using this code to compress my *mp4 file. I need to get lower quality and decrease bitrate :
ffmpeg -i input.mp4 -c:v libx264 output.mp4
The problem is : the last frame of footage is dropped after ffmpeg compression.
Screenshot is here : screenshot_ffmpeg_drop frameI tried to use full preferences I need, but the problem is the same.
ffmpeg -i input.mp4 -c:v libx264 -vf scale=1280:720 -preset fast -crf 29 -r 25 -c:a copy output.mp4
logfile during ffmpeg encoding :
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from ’\input.mp4’ :
Metadata :
major_brand : mp42
minor_version : 0
compatible_brands : mp42mp41
creation_time : 2018-10-28T11:06:03.000000Z
Duration : 00:00:12.76, start : 0.000000, bitrate : 5374 kb/s
Stream #0:0(eng) : Video : h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 5368 kb/s, 25 fps, 25 tbr, 50k tbn, 50 tbc (default)
Metadata :
creation_time : 2018-10-28T11:06:03.000000Z
handler_name : Alias Data Handler
encoder : AVC CodingStream mapping : Stream #0:0 -> #0:0 (h264 (native) -> h264
(libx264)) Press [q] to stop, [?] for help [libx264 @
000002fae8b50780] using SAR=1/1 [libx264 @ 000002fae8b50780] using cpu
capabilities : MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 [libx264 @
000002fae8b50780] profile High, level 3.1 [libx264 @ 000002fae8b50780]
264 - core 155 r2901 7d0ff22 - H.264/MPEG-4 AVC codec - Copyleft
2003-2018 - http://www.videolan.org/x264.html - options : cabac=1 ref=2
deblock=1:0:0 analyse=0x3:0x113 me=hex subme=6 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=12
lookahead_threads=2 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=1 keyint=250
keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=30 rc=crf
mbtree=1 crf=29.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40
aq=1:1.00 Output #0, mp4, to ’\output.mp4’ : Metadata :
major_brand : mp42
minor_version : 0
compatible_brands : mp42mp41
encoder : Lavf58.17.100
Stream #0:0(eng) : Video : h264 (libx264) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1—1, 25 fps, 12800 tbn, 25
tbc (default)
Metadata :
creation_time : 2018-10-28T11:06:03.000000Z
handler_name : Alias Data Handler
encoder : Lavc58.19.104 libx264
Side data :
cpb : bitrate max/min/avg : 0/0/0 buffer size : 0 vbv_delay : -1frame= 318 fps=127 q=-1.0 Lsize= 855kB time=00:00:12.60 bitrate=
556.0kbits/s speed=5.05x video:851kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead : 0.534683% [libx264 @
0000015d5cef0500] frame I:2 Avg QP:26.18 size : 67800 [libx264 @
0000015d5cef0500] frame P:80 Avg QP:27.93 size : 5439 [libx264 @
0000015d5cef0500] frame B:236 Avg QP:32.44 size : 1269 [libx264 @
0000015d5cef0500] consecutive B-frames : 0.9% 0.0% 0.9% 98.1%
[libx264 @ 0000015d5cef0500] mb I I16..4 : 10.6% 62.5% 26.8% [libx264
@ 0000015d5cef0500] mb P I16..4 : 0.5% 1.0% 0.2% P16..4 : 36.1%
5.1% 3.6% 0.0% 0.0% skip:53.6% [libx264 @ 0000015d5cef0500] mb B I16..4 : 0.6% 0.5% 0.0% B16..8 : 22.2% 0.6% 0.0% direct : 2.0%
skip:74.2% L0:44.9% L1:54.5% BI : 0.6% [libx264 @ 0000015d5cef0500]
8x8 transform intra:55.0% inter:86.2% [libx264 @ 0000015d5cef0500]
coded y,uvDC,uvAC intra : 48.1% 54.9% 27.0% inter : 3.2% 5.2% 0.2%
[libx264 @ 0000015d5cef0500] i16 v,h,dc,p : 19% 56% 10% 15% [libx264 @
0000015d5cef0500] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu : 19% 25% 18% 5% 6%
5% 8% 5% 8% [libx264 @ 0000015d5cef0500] i4
v,h,dc,ddl,ddr,vr,hd,vl,hu : 27% 24% 9% 5% 8% 7% 9% 5% 7%
[libx264 @ 0000015d5cef0500] i8c dc,h,v,p : 60% 20% 15% 4% [libx264 @
0000015d5cef0500] Weighted P-Frames : Y:0.0% UV:0.0% [libx264 @
0000015d5cef0500] ref P L0 : 67.7% 32.3% [libx264 @ 0000015d5cef0500]
ref B L0 : 80.4% 19.6% [libx264 @ 0000015d5cef0500] ref B L1 : 92.1%
7.9% [libx264 @ 0000015d5cef0500] kb/s:547.35 -
ffmpeg how to select the audio channel with the biggest bps ?
31 octobre 2018, par Kris RoofeI have mp4 file with below format,
$ ffprobe -i 70_1.mp4 -hide_banner
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '70_1.mp4':
Metadata:
major_brand : qt
minor_version : 0
compatible_brands: qt
creation_time : 2018-10-30T08:57:38.000000Z
Duration: 00:13:55.76, start: 0.000000, bitrate: 2246 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, smpte170m/bt709/unknown, progressive), 1440x1920, 2118 kb/s, 58.75 fps, 60 tbr, 600 tbn, 1200 tbc (default)
Metadata:
creation_time : 2018-10-30T08:57:38.000000Z
handler_name : Core Media Video
encoder : 'avc1'
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 2 kb/s (default)
Metadata:
creation_time : 2018-10-30T08:57:38.000000Z
handler_name : Core Media Audio
Stream #0:2(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 119 kb/s (default)
Metadata:
creation_time : 2018-10-30T08:57:38.000000Z
handler_name : Core Media AudioAs the auto channel is special, there is no sound when play in the browser.
So I use ffmpeg to transfer it with
ffmpeg -i 70_1.mp4 -crf 30 -b:a 23k -b:v 96k -threads 4 -map 0:0 -map 0:2 -y ooo.mp4
, the generated mp4 file can play in the browser.$ ffprobe.exe ooo.mp4 -hide_banner
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'ooo.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.17.101
Duration: 00:13:55.79, start: 0.000000, bitrate: 246 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc), 1440x1920, 209 kb/s, 60 fps, 60 tbr, 15360 tbn, 120 tbc (default)
Metadata:
handler_name : Core Media Video
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 23 kb/s (default)
Metadata:
handler_name : Core Media AudioBut there is one issue, I need to process mp4 file with many formats, some with 1 audio channel, some with 2, So I want to know how to select the audio channel with the biggest bps.
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ffpmeg drops last frame when compressing from MP4 to MP4 (libx264)
28 octobre 2018, par UsoboiSo, I’m using this code to compress my *mp4 file. I need to get lower quality and decrease bitrate :
ffmpeg -i input.mp4 -c:v libx264 output.mp4
The problem is : the last frame of footage is dropped after ffmpeg compression.
Screenshot is here : screenshot_ffmpeg_drop frameI tried to use full preferences I need, but the problem is the same.
ffmpeg -i input.mp4 -c:v libx264 -vf scale=1280:720 -preset fast -crf 29 -r 25 -c:a copy output.mp4
logfile during ffmpeg encoding :
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from ’\input.mp4’ :
Metadata :
major_brand : mp42
minor_version : 0
compatible_brands : mp42mp41
creation_time : 2018-10-28T11:06:03.000000Z
Duration : 00:00:12.76, start : 0.000000, bitrate : 5374 kb/s
Stream #0:0(eng) : Video : h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 5368 kb/s, 25 fps, 25 tbr, 50k tbn, 50 tbc (default)
Metadata :
creation_time : 2018-10-28T11:06:03.000000Z
handler_name : Alias Data Handler
encoder : AVC CodingStream mapping : Stream #0:0 -> #0:0 (h264 (native) -> h264
(libx264)) Press [q] to stop, [?] for help [libx264 @
000002fae8b50780] using SAR=1/1 [libx264 @ 000002fae8b50780] using cpu
capabilities : MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 [libx264 @
000002fae8b50780] profile High, level 3.1 [libx264 @ 000002fae8b50780]
264 - core 155 r2901 7d0ff22 - H.264/MPEG-4 AVC codec - Copyleft
2003-2018 - http://www.videolan.org/x264.html - options : cabac=1 ref=2
deblock=1:0:0 analyse=0x3:0x113 me=hex subme=6 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=12
lookahead_threads=2 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=1 keyint=250
keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=30 rc=crf
mbtree=1 crf=29.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40
aq=1:1.00 Output #0, mp4, to ’\output.mp4’ : Metadata :
major_brand : mp42
minor_version : 0
compatible_brands : mp42mp41
encoder : Lavf58.17.100
Stream #0:0(eng) : Video : h264 (libx264) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1—1, 25 fps, 12800 tbn, 25
tbc (default)
Metadata :
creation_time : 2018-10-28T11:06:03.000000Z
handler_name : Alias Data Handler
encoder : Lavc58.19.104 libx264
Side data :
cpb : bitrate max/min/avg : 0/0/0 buffer size : 0 vbv_delay : -1frame= 318 fps=127 q=-1.0 Lsize= 855kB time=00:00:12.60 bitrate=
556.0kbits/s speed=5.05x video:851kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead : 0.534683% [libx264 @
0000015d5cef0500] frame I:2 Avg QP:26.18 size : 67800 [libx264 @
0000015d5cef0500] frame P:80 Avg QP:27.93 size : 5439 [libx264 @
0000015d5cef0500] frame B:236 Avg QP:32.44 size : 1269 [libx264 @
0000015d5cef0500] consecutive B-frames : 0.9% 0.0% 0.9% 98.1%
[libx264 @ 0000015d5cef0500] mb I I16..4 : 10.6% 62.5% 26.8% [libx264
@ 0000015d5cef0500] mb P I16..4 : 0.5% 1.0% 0.2% P16..4 : 36.1%
5.1% 3.6% 0.0% 0.0% skip:53.6% [libx264 @ 0000015d5cef0500] mb B I16..4 : 0.6% 0.5% 0.0% B16..8 : 22.2% 0.6% 0.0% direct : 2.0%
skip:74.2% L0:44.9% L1:54.5% BI : 0.6% [libx264 @ 0000015d5cef0500]
8x8 transform intra:55.0% inter:86.2% [libx264 @ 0000015d5cef0500]
coded y,uvDC,uvAC intra : 48.1% 54.9% 27.0% inter : 3.2% 5.2% 0.2%
[libx264 @ 0000015d5cef0500] i16 v,h,dc,p : 19% 56% 10% 15% [libx264 @
0000015d5cef0500] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu : 19% 25% 18% 5% 6%
5% 8% 5% 8% [libx264 @ 0000015d5cef0500] i4
v,h,dc,ddl,ddr,vr,hd,vl,hu : 27% 24% 9% 5% 8% 7% 9% 5% 7%
[libx264 @ 0000015d5cef0500] i8c dc,h,v,p : 60% 20% 15% 4% [libx264 @
0000015d5cef0500] Weighted P-Frames : Y:0.0% UV:0.0% [libx264 @
0000015d5cef0500] ref P L0 : 67.7% 32.3% [libx264 @ 0000015d5cef0500]
ref B L0 : 80.4% 19.6% [libx264 @ 0000015d5cef0500] ref B L1 : 92.1%
7.9% [libx264 @ 0000015d5cef0500] kb/s:547.35