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Autres articles (70)
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Le plugin : Podcasts.
14 juillet 2010, parLe problème du podcasting est à nouveau un problème révélateur de la normalisation des transports de données sur Internet.
Deux formats intéressants existent : Celui développé par Apple, très axé sur l’utilisation d’iTunes dont la SPEC est ici ; Le format "Media RSS Module" qui est plus "libre" notamment soutenu par Yahoo et le logiciel Miro ;
Types de fichiers supportés dans les flux
Le format d’Apple n’autorise que les formats suivants dans ses flux : .mp3 audio/mpeg .m4a audio/x-m4a .mp4 (...) -
MediaSPIP Init et Diogène : types de publications de MediaSPIP
11 novembre 2010, parÀ l’installation d’un site MediaSPIP, le plugin MediaSPIP Init réalise certaines opérations dont la principale consiste à créer quatre rubriques principales dans le site et de créer cinq templates de formulaire pour Diogène.
Ces quatre rubriques principales (aussi appelées secteurs) sont : Medias ; Sites ; Editos ; Actualités ;
Pour chacune de ces rubriques est créé un template de formulaire spécifique éponyme. Pour la rubrique "Medias" un second template "catégorie" est créé permettant d’ajouter (...) -
Personnaliser l’affichage de mon Médiaspip
27 mai 2013Vous pouvez modifier la configuration du squelette afin de personnaliser votre Médiaspip Voir aussi plus d’informations en suivant ce lien
Comment supprimer le nombre de vues d’affichage d’un média ?
Administrer > Gestion du squelette > Pages des articles et médias Cocher dans "Informations non affichées sur les pages de médias" les paramètres que vous ne souhaitez pas afficher.
Comment supprimer le titre de mon Médiaspip dans le bandeau horizontal ?
Administrer > Gestion du squelette > (...)
Sur d’autres sites (6267)
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Ffmpeg and png watermark on OSX error
28 juin 2012, par StpnI am trying to add watermark with transparent background on OSX with ffmpeg.
I am using this command :
ffmpeg -i test.mpg -vf "movie=stuff.png, scale=100:100 [watermark]; [in][watermark] overlay=main_w-overlay_w:main_h-overlay_h-10 [out]" out.mpg
And I am getting this :
ffmpeg version 0.11.1 Copyright (c) 2000-2012 the FFmpeg developers
built on Jun 12 2012 21:37:10 with clang 3.1 (tags/Apple/clang-318.0.54)
configuration: --prefix=/usr/local/Cellar/ffmpeg/0.11.1 --enable-shared --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-libfreetype --cc=/usr/bin/clang --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libxvid --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libass --enable-libvo-aacenc --disable-ffplay
libavutil 51. 54.100 / 51. 54.100
libavcodec 54. 23.100 / 54. 23.100
libavformat 54. 6.100 / 54. 6.100
libavdevice 54. 0.100 / 54. 0.100
libavfilter 2. 77.100 / 2. 77.100
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 15.100 / 0. 15.100
libpostproc 52. 0.100 / 52. 0.100
Input #0, mpeg, from 'test.mpg':
Duration: 00:00:01.04, start: 1.000000, bitrate: 9106 kb/s
Stream #0:0[0x1e0]: Video: mpeg1video, yuv420p, 640x480 [SAR 1:1 DAR 4:3], 104857 kb/s, 24 fps, 24 tbr, 90k tbn, 24 tbc
Stream #0:1[0x1c0]: Audio: mp2, 44100 Hz, stereo, s16, 128 kb/s
File 'out.mpg' already exists. Overwrite ? [y/N] y
w:640 h:480 pixfmt:yuv420p tb:1/90000 sar:1/1 sws_param:flags=2
[buffersink @ 0x7ff50bc1c3e0] No opaque field provided
[png @ 0x7ff50c038400] unsupported bit depth 16 and color type 4
[image2 @ 0x7ff50c044800] decoding for stream 0 failed
[image2 @ 0x7ff50c044800] Could not find codec parameters (Video: png, 640x480)
[movie @ 0x7ff50bc17200] Failed to find stream info
[movie @ 0x7ff50bc17200] seek_point:0 format_name:(null) file_name:stuff.png stream_index:0
[scale @ 0x7ff50bc178c0] auto-inserting filter 'auto-inserted scaler 0' between the filter 'Parsed_movie_0' and the filter 'Parsed_scale_1'
Impossible to convert between the formats supported by the filter 'Parsed_movie_0' and the filter 'auto-inserted scaler 0'
Error opening filters!I thought I am missing png support and I checked homebrew for libpng install, but it turn out png support is already included by Apple with OSX.
Also I did
ffmpeg -codecs list | grep -i png
and I do have PNG support in ffmpeg :
DEV D png PNG (Portable Network Graphics) image
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FFmpeg fontcolor_expr to dynamically change fontcolor over time
26 juin 2017, par MatthewI’m using Fluent-FFmpeg with Node.JS to create videos with text overlaid on them and I’m wanting to change the color of the text as the video progresses.
My filters follow this pattern :
drawtext=enable='between(t,18.93,20.28)':fontfile=fonts/cousine-bold.ttf:fontsize=144:fontcolor_expr=%{expr\\\: if(between(t\\, 0\\, 20)\\, 888888\\, 111111)}:x=82:y=288:text='PROGRAMMING'
And it prints out this stuff :
ffmpeg version 3.3.2 Copyright (c) 2000-2017 the FFmpeg developers
built with Apple LLVM version 8.1.0 (clang-802.0.42)
configuration: --prefix=/usr/local/Cellar/ffmpeg/3.3.2 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libfreetype --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --disable-lzma --enable-vda
libavutil 55. 58.100 / 55. 58.100
libavcodec 57. 89.100 / 57. 89.100
libavformat 57. 71.100 / 57. 71.100
libavdevice 57. 6.100 / 57. 6.100
libavfilter 6. 82.100 / 6. 82.100
libavresample 3. 5. 0 / 3. 5. 0
libswscale 4. 6.100 / 4. 6.100
libswresample 2. 7.100 / 2. 7.100
libpostproc 54. 5.100 / 54. 5.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'uploads/0c719e39820366bc62c8fd66a6327828':
Metadata:
major_brand : qt
minor_version : 0
compatible_brands: qt
creation_time : 2017-06-23T00:19:46.000000Z
com.apple.quicktime.make: Apple
com.apple.quicktime.model: MacBookPro9,2
com.apple.quicktime.software: Mac OS X 10.12.5 (16F73)
com.apple.quicktime.creationdate: 2017-06-22T17:18:42-0700
Duration: 00:00:22.00, start: 0.000000, bitrate: 3408 kb/s
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1280x720 [SAR 1:1 DAR 16:9], 3091 kb/s, 15 fps, 15 tbr, 30k tbn, 50 tbc (default)
Metadata:
creation_time : 2017-06-23T00:19:46.000000Z
handler_name : Core Media Data Handler
encoder : H.264
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 316 kb/s (default)
Metadata:
creation_time : 2017-06-23T00:19:46.000000Z
handler_name : Core Media Data Handler
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 0x7ff72e810a00] using SAR=1/1
[libx264 @ 0x7ff72e810a00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 @ 0x7ff72e810a00] profile High, level 3.1
[libx264 @ 0x7ff72e810a00] 264 - core 148 r2748 97eaef2 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - 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=6 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=15 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 './outputFile.mp4':
Metadata:
major_brand : qt
minor_version : 0
compatible_brands: qt
com.apple.quicktime.creationdate: 2017-06-22T17:18:42-0700
com.apple.quicktime.make: Apple
com.apple.quicktime.model: MacBookPro9,2
com.apple.quicktime.software: Mac OS X 10.12.5 (16F73)
encoder : Lavf57.71.100
Stream #0:0(und): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 15 fps, 15360 tbn, 15 tbc (default)
Metadata:
creation_time : 2017-06-23T00:19:46.000000Z
handler_name : Core Media Data Handler
encoder : Lavc57.89.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Stream #0:1(und): Audio: aac (LC) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, fltp, 128 kb/s (default)
Metadata:
creation_time : 2017-06-23T00:19:46.000000Z
handler_name : Core Media Data Handler
encoder : Lavc57.89.100 aac
frame= 52 fps=0.0 q=27.0 size= 37kB time=00:00:04.66 bitrate= 65.7kbits/s speed=8.74x
frame= 72 fps= 70 q=27.0 size= 187kB time=00:00:06.03 bitrate= 253.4kbits/s speed=5.83x
frame= 95 fps= 61 q=27.0 size= 358kB time=00:00:07.52 bitrate= 390.4kbits/s speed=4.82x
frame= 117 fps= 57 q=27.0 size= 569kB time=00:00:08.98 bitrate= 518.9kbits/s speed=4.35x
frame= 137 fps= 53 q=27.0 size= 732kB time=00:00:10.32 bitrate= 580.2kbits/s speed=4.03x
frame= 159 fps= 52 q=27.0 size= 942kB time=00:00:11.79 bitrate= 654.7kbits/s speed=3.84x
frame= 180 fps= 50 q=27.0 size= 1110kB time=00:00:13.18 bitrate= 689.5kbits/s speed=3.67x
frame= 204 fps= 50 q=27.0 size= 1331kB time=00:00:14.78 bitrate= 737.2kbits/s speed= 3.6x
frame= 223 fps= 48 q=27.0 size= 1486kB time=00:00:16.06 bitrate= 757.9kbits/s speed=3.49x
frame= 248 fps= 48 q=27.0 size= 1708kB time=00:00:17.71 bitrate= 789.7kbits/s speed=3.46x
frame= 266 fps= 47 q=27.0 size= 1859kB time=00:00:18.92 bitrate= 805.0kbits/s speed=3.35x
frame= 285 fps= 46 q=27.0 size= 2013kB time=00:00:20.19 bitrate= 816.4kbits/s speed=3.28x
[drawtext @ 0x7ff72d84bc00] Cannot find color '888888.000000'
Last message repeated 9 times
frame= 308 fps= 46 q=27.0 size= 2224kB time=00:00:21.75 bitrate= 837.5kbits/s speed=3.27x
frame= 330 fps= 46 q=27.0 size= 2401kB time=00:00:21.96 bitrate= 895.5kbits/s speed=3.06x
frame= 330 fps= 41 q=-1.0 Lsize= 2834kB time=00:00:22.00 bitrate=1055.0kbits/s speed=2.73x
video:2484kB audio:338kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.441003%
[libx264 @ 0x7ff72e810a00] frame I:22 Avg QP:13.64 size: 47604
[libx264 @ 0x7ff72e810a00] frame P:154 Avg QP:16.76 size: 8574
[libx264 @ 0x7ff72e810a00] frame B:154 Avg QP:19.42 size: 1138
[libx264 @ 0x7ff72e810a00] consecutive B-frames: 6.7% 93.3% 0.0% 0.0%
[libx264 @ 0x7ff72e810a00] mb I I16..4: 85.1% 13.3% 1.6%
[libx264 @ 0x7ff72e810a00] mb P I16..4: 5.5% 3.1% 0.0% P16..4: 41.5% 4.0% 5.5% 0.0% 0.0% skip:40.4%
[libx264 @ 0x7ff72e810a00] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 14.7% 0.1% 0.0% direct: 4.7% skip:80.4% L0:28.0% L1:71.4% BI: 0.7%
[libx264 @ 0x7ff72e810a00] 8x8 transform intra:21.7% inter:84.8%
[libx264 @ 0x7ff72e810a00] coded y,uvDC,uvAC intra: 60.5% 98.6% 92.9% inter: 6.0% 24.3% 3.1%
[libx264 @ 0x7ff72e810a00] i16 v,h,dc,p: 35% 19% 43% 3%
[libx264 @ 0x7ff72e810a00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 10% 7% 80% 1% 1% 1% 1% 0% 0%
[libx264 @ 0x7ff72e810a00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% 20% 45% 0% 0% 0% 0% 0% 0%
[libx264 @ 0x7ff72e810a00] i8c dc,h,v,p: 77% 9% 10% 4%
[libx264 @ 0x7ff72e810a00] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x7ff72e810a00] ref P L0: 75.3% 0.3% 17.1% 7.3%
[libx264 @ 0x7ff72e810a00] ref B L0: 80.0% 20.0%
[libx264 @ 0x7ff72e810a00] kb/s:924.66
[aac @ 0x7ff72e812200] Qavg: 2159.960In particular this annoying bit :
[drawtext @ 0x7ff72d84bc00] Cannot find color '888888.000000'
However, it would be really nice to do something like this :
fontcolor_expr=%{expr\\\\: if(between(t\\, 0\\, 20)\\, pink\\, white)}
Which prints out this error :
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Undefined constant or missing '(' in 'pink,white)'
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Missing ')' or too many args in 'if(between(t,0,20),pink,white)'
[Parsed_drawtext_0 @ 0x7ff3cf523300] Expression 'if(between(t, 0, 20), pink, white)' for the expr text expansion function is not valid
frame= 287 fps= 46 q=27.0 size= 2023kB time=00:00:20.31 bitrate= 815.9kbits/s speed=3.27x
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Undefined constant or missing '(' in 'pink,white)'
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Missing ')' or too many args in 'if(between(t,0,20),pink,white)'
[Parsed_drawtext_0 @ 0x7ff3cf523300] Expression 'if(between(t, 0, 20), pink, white)' for the expr text expansion function is not valid
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Undefined constant or missing '(' in 'pink,white)'
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Missing ')' or too many args in 'if(between(t,0,20),pink,white)'
[Parsed_drawtext_0 @ 0x7ff3cf523300] Expression 'if(between(t, 0, 20), pink, white)' for the expr text expansion function is not valid
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Undefined constant or missing '(' in 'pink,white)'
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Missing ')' or too many args in 'if(between(t,0,20),pink,white)'
[Parsed_drawtext_0 @ 0x7ff3cf523300] Expression 'if(between(t, 0, 20), pink, white)' for the expr text expansion function is not valid
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Undefined constant or missing '(' in 'pink,white)'
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Missing ')' or too many args in 'if(between(t,0,20),pink,white)'
[Parsed_drawtext_0 @ 0x7ff3cf523300] Expression 'if(between(t, 0, 20), pink, white)' for the expr text expansion function is not valid
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Undefined constant or missing '(' in 'pink,white)'
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Missing ')' or too many args in 'if(between(t,0,20),pink,white)'
[Parsed_drawtext_0 @ 0x7ff3cf523300] Expression 'if(between(t, 0, 20), pink, white)' for the expr text expansion function is not valid
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Undefined constant or missing '(' in 'pink,white)'
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Missing ')' or too many args in 'if(between(t,0,20),pink,white)'
[Parsed_drawtext_0 @ 0x7ff3cf523300] Expression 'if(between(t, 0, 20), pink, white)' for the expr text expansion function is not valid
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Undefined constant or missing '(' in 'pink,white)'
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Missing ')' or too many args in 'if(between(t,0,20),pink,white)'
[Parsed_drawtext_0 @ 0x7ff3cf523300] Expression 'if(between(t, 0, 20), pink, white)' for the expr text expansion function is not valid
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Undefined constant or missing '(' in 'pink,white)'
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Missing ')' or too many args in 'if(between(t,0,20),pink,white)'
[Parsed_drawtext_0 @ 0x7ff3cf523300] Expression 'if(between(t, 0, 20), pink, white)' for the expr text expansion function is not valid
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Undefined constant or missing '(' in 'pink,white)'
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Missing ')' or too many args in 'if(between(t,0,20),pink,white)'
[Parsed_drawtext_0 @ 0x7ff3cf523300] Expression 'if(between(t, 0, 20), pink, white)' for the expr text expansion function is not validThere aren’t a lot of examples of fontcolor_expr, so I wanted to see if anyone had experience with this. Any tips on changing fonrcolors dynamically without creating multiple filters ?
Please note that
fontcolor_expr=white
andfontcolor_expr=888888
are valid and create videos with a fixed font color. -
avformat/movenc : fix mime-types in movenc.c
8 juillet 2015, par compnavformat/movenc : fix mime-types in movenc.c
says video/mp4
suggested by BBB on irc.
Signed-off-by : Michael Niedermayer <michaelni@gmx.at>