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Des sites réalisés avec MediaSPIP
2 mai 2011, parCette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page. -
La sauvegarde automatique de canaux SPIP
1er avril 2010, parDans le cadre de la mise en place d’une plateforme ouverte, il est important pour les hébergeurs de pouvoir disposer de sauvegardes assez régulières pour parer à tout problème éventuel.
Pour réaliser cette tâche on se base sur deux plugins SPIP : Saveauto qui permet une sauvegarde régulière de la base de donnée sous la forme d’un dump mysql (utilisable dans phpmyadmin) mes_fichiers_2 qui permet de réaliser une archive au format zip des données importantes du site (les documents, les éléments (...) -
Script d’installation automatique de MediaSPIP
25 avril 2011, parAfin de palier aux difficultés d’installation dues principalement aux dépendances logicielles coté serveur, un script d’installation "tout en un" en bash a été créé afin de faciliter cette étape sur un serveur doté d’une distribution Linux compatible.
Vous devez bénéficier d’un accès SSH à votre serveur et d’un compte "root" afin de l’utiliser, ce qui permettra d’installer les dépendances. Contactez votre hébergeur si vous ne disposez pas de cela.
La documentation de l’utilisation du script d’installation (...)
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Translating Handbrake options to a FFMPEG command
9 mai 2020, par ArifI want to convert a bunch of videos from x264 to x265, but I need to do so with ffmpeg in terminal because it's a remote server. These are my Handbrake options (listed items are ticked) :



Summary tab



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- Web optimized
- Align A/V Start







Dimensions tab unchanged



Filters tab



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- Sharpen - LapSharp, preset : Medium





Video tab



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Video codec - H.265 (x265)
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Framerate (FPS) - 30 - Peak Framerate
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Quality - Constant Quality - 28
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Encoder preset - Medium
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Encoder tune - None
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Encoder profile - Auto















Audio tab



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- Audio track - AAC, bitrate : 128





Subtitles tab - No subtitles (remove if exists)



This is the ffmpeg command that I've managed to compile so far :



ffmpeg -i input.mp4 -c:v libx265 -crf 28 -c:a aac -b:a 128k -max_muxing_queue_size 400 -movflags +faststart output.mp4



I have the following two questions :



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- Does the ffmpeg command provided list all the options except the peak framerate, sharpening filter and removing subtitle ones ? How do I incorporate these three ?
- Slightly unrelated, but does having
-max_muxing_queue_size 400
negatively affect file size or video quality ? I've only included this because I'd ran into encoding errors in the past.







Thank you.



My Handbrake log with the above options, if it helps :



Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'E:\input.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.10.100
 Duration: 00:02:20.52, start: 0.000000, bitrate: 1487 kb/s
 Stream #0:0(und): Video: h264 (High) [avc1 / 0x31637661]
 yuv420p, tv, bt709/bt709/bt709
 1280x720 [PAR 1:1 DAR 16:9], 1288 kb/s, PAR 1:1 DAR 16:9
 29.97 fps, 30k tbn (default)
 Metadata:
 handler_name : VideoHandler
 Stream #0:1(eng): Audio: aac (LC) [mp4a / 0x6134706D]
 44100 Hz, stereo, fltp, 192 kb/s (default)
 Metadata:
 handler_name : SoundHandler
[04:26:49] scan: decoding previews for title 1
[04:26:49] scan: audio 0x1: aac, rate=44100Hz, bitrate=192025 English (AAC) (2.0 ch)
[04:26:50] scan: 10 previews, 1280x720, 29.970 fps, autocrop = 0/0/0/0, aspect 16:9, PAR 1:1
[04:26:50] scan: supported video decoders: avcodec qsv
[04:26:50] libhb: scan thread found 1 valid title(s)
[04:26:50] starting job
[04:26:50] decomb filter thread started for segment 0
[04:26:50] decomb filter thread started for segment 1
[04:26:50] decomb filter thread started for segment 3
[04:26:50] decomb check thread started for segment 0
[04:26:50] decomb check thread started for segment 1
[04:26:50] yadif thread started for segment 0
[04:26:50] decomb check thread started for segment 3
[04:26:50] mask filter thread started for segment 0
[04:26:50] work: track 1, dithering not supported by codec
[04:26:50] mask filter thread started for segment 1
[04:26:50] work: only 1 chapter, disabling chapter markers
[04:26:50] job configuration:
[04:26:50] * source
[04:26:50] + E:\input.mp4
[04:26:50] + title 1, chapter(s) 1 to 1
[04:26:50] + container: mov,mp4,m4a,3gp,3g2,mj2
[04:26:50] mask filter thread started for segment 3
[04:26:50] + data rate: 1487 kbps
[04:26:50] * destination
[04:26:50] + C:\Users\Hp\Desktop\output.mp4
[04:26:50] + container: MPEG-4 (libavformat)
[04:26:50] + optimized for HTTP streaming (fast start)
[04:26:50] + align initial A/V stream timestamps
[04:26:50] * video track
[04:26:50] + decoder: h264
[04:26:50] + bitrate 1288 kbps
[04:26:50] + filters
[04:26:50] mask filter thread started for segment 2
[04:26:50] + Comb Detect (mode=3:spatial-metric=2:motion-thresh=1:spatial-thresh=1:filter-mode=2:block-thresh=40:block-width=16:block-height=16)
[04:26:50] + Decomb (mode=39)
[04:26:50] + Framerate Shaper (mode=2:rate=27000000/900000)
[04:26:50] + frame rate: 29.970 fps -> peak rate limited to 30.000 fps
[04:26:50] mask erode thread started for segment 1
[04:26:50] + Crop and Scale (width=1280:height=720:crop-top=0:crop-bottom=0:crop-left=0:crop-right=0)
[04:26:50] + source: 1280 * 720, crop (0/0/0/0): 1280 * 720, scale: 1280 * 720
[04:26:50] + Sharpen (lapsharp) (y-strength=0.2:y-kernel=isolap:cb-strength=0.2:cb-kernel=isolap)
[04:26:50] + Output geometry
[04:26:50] + storage dimensions: 1280 x 720
[04:26:50] + pixel aspect ratio: 1 : 1
[04:26:50] + display dimensions: 1280 x 720
[04:26:50] + encoder: H.265 (libx265)
[04:26:50] + preset: medium
[04:26:50] + profile: auto
[04:26:50] + quality: 28.00 (RF)
[04:26:50] * audio track 1
[04:26:50] mask erode thread started for segment 2
[04:26:50] + decoder: English (AAC) (2.0 ch) (track 1, id 0x1)
[04:26:50] + bitrate: 192 kbps, samplerate: 44100 Hz
[04:26:50] + mixdown: Stereo
[04:26:50] + encoder: AAC (libavcodec)
[04:26:50] + bitrate: 128 kbps, samplerate: 48000 Hz
[04:26:50] mask erode thread started for segment 3
[04:26:50] mask dilate thread started for segment 0
[04:26:50] mask dilate thread started for segment 1
[04:26:50] mask dilate thread started for segment 2
[04:26:50] decomb check thread started for segment 2
[04:26:50] yadif thread started for segment 1
[04:26:50] yadif thread started for segment 2
[04:26:50] yadif thread started for segment 3
[04:26:50] MTFrame thread started for segment 1
[04:26:50] MTFrame thread started for segment 2
[04:26:50] MTFrame thread started for segment 3
[04:26:50] mask dilate thread started for segment 3
[04:26:50] sync: expecting 4211 video frames
[04:26:50] mask erode thread started for segment 0
[04:26:50] decomb filter thread started for segment 2
[04:26:50] MTFrame thread started for segment 0
x265 [info]: HEVC encoder version 2.6
x265 [info]: build info [Windows][GCC 7.2.0][64 bit] 8bit+10bit+12bit
x265 [info]: using cpu capabilities: MMX2 SSE2Fast LZCNT SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
x265 [info]: Main profile, Level-3.1 (Main tier)
x265 [info]: Thread pool created using 4 threads
x265 [info]: Slices : 1
x265 [info]: frame threads / pool features : 2 / wpp(12 rows)
x265 [info]: Coding QT: max CU size, min CU size : 64 / 8
x265 [info]: Residual QT: max TU size, max depth : 32 / 1 inter / 1 intra
x265 [info]: ME / range / subpel / merge : hex / 57 / 2 / 2
x265 [info]: Keyframe min / max / scenecut / bias: 30 / 300 / 40 / 5.00
x265 [info]: Lookahead / bframes / badapt : 20 / 4 / 2
x265 [info]: b-pyramid / weightp / weightb : 1 / 1 / 0
x265 [info]: References / ref-limit cu / depth : 3 / on / on
x265 [info]: AQ: mode / str / qg-size / cu-tree : 1 / 1.0 / 32 / 1
x265 [info]: Rate Control / qCompress : CRF-28.0 / 0.60
x265 [info]: tools: rd=3 psy-rd=2.00 rskip signhide tmvp strong-intra-smoothing
x265 [info]: tools: lslices=4 deblock sao
[04:26:50] sync: first pts video is 0
[04:26:50] sync: "Chapter 1" (1) at frame 1 time 0
[04:26:50] sync: first pts audio 0x1 is 0
[04:40:02] reader: done. 1 scr changes
[04:40:13] work: average encoding speed for job is 5.245789 fps
[04:40:13] comb detect: heavy 3 | light 10 | uncombed 4198 | total 4211
[04:40:13] decomb: deinterlaced 3 | blended 10 | unfiltered 4198 | total 4211
[04:40:13] vfr: 4211 frames output, 0 dropped and 0 duped for CFR/PFR
[04:40:13] vfr: lost time: 0 (0 frames)
[04:40:13] vfr: gained time: 0 (0 frames) (0 not accounted for)
[04:40:13] aac-decoder done: 6052 frames, 0 decoder errors
[04:40:13] h264-decoder done: 4211 frames, 0 decoder errors
[04:40:13] sync: got 4211 frames, 4211 expected
[04:40:13] sync: framerate min 18.394 fps, max 29.970 fps, avg 29.966 fps
x265 [info]: frame I: 18, Avg QP:24.13 kb/s: 2900.85
x265 [info]: frame P: 1079, Avg QP:26.64 kb/s: 1040.14
x265 [info]: frame B: 3114, Avg QP:33.15 kb/s: 235.18
x265 [info]: Weighted P-Frames: Y:0.4% UV:0.4%
x265 [info]: consecutive B-frames: 4.0% 1.4% 20.1% 55.7% 18.8%
encoded 4211 frames in 802.93s (5.24 fps), 452.83 kb/s, Avg QP:31.44
[04:40:13] mux: track 0, 4211 frames, 7970061 bytes, 453.68 kbps, fifo 8192
[04:40:13] mux: track 1, 6588 frames, 2254132 bytes, 128.31 kbps, fifo 8192
[04:40:13] libhb: work result = 0

# Encode Completed ...



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Matomo vs WP-Statistics – which web analytics plugin suits you best ?
2 avril 2020, par Joselyn Khor — Analytics Tips, Plugins -
Is there any way to make image compression and saving faster on Android ?
24 octobre 2016, par Arsen SenchThe situation
I should show 200-350 frames animation in my application. Images have 500x300ish resolution. If user wants to share animation, i have to convert it to Video. For convertion i am using ffmpeg command.
ffmpeg -y -r 1 -i /sdcard/videokit/pic00%d.jpg -i /sdcard/videokit/in.mp3 -strict experimental -ar 44100 -ac 2 -ab 256k -b 2097152 -ar 22050 -vcodec mpeg4 -b 2097152 -s 320x240 /sdcard/videokit/out.mp4
To convert images to video ffmpeg wants actual files not Bitmap or byte[].
Problem
Compressing bitmaps to image files taking to much time. 210 image convertion takes about 1 minute to finish on average device(HTC ONE m7). Converting image files to mp4 takes about 15 seconds on the same device. All together user have to wait about 1.5 minutes.
What i have tried
- I changed comrpession format form PNG to JPEG(1.5 minute result is
achieved with JPEG compression(quality=80),with PNG it takes about
2-2.5 minutes) success - Tried to find how pass byte[] or bitmap to ffmpeg - no succes.
QUESTION
- Is there any way(library (even native)) to make saving process faster.
- Is there any way to pass byte[] or Bitmap objects (i mean png file decompressed to Android Bitmap Class Object) to ffmpeg library video creating method
- Is there any other working library which will create mp4(or any supported format(supported by main Social Networks)) from byte[] or Bitmap objects in about 30 seconds(for 200 frames).
- I changed comrpession format form PNG to JPEG(1.5 minute result is