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The Great Big Beautiful Tomorrow
28 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Texte
Autres articles (107)
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Le profil des utilisateurs
12 avril 2011, parChaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...) -
Dépôt de média et thèmes par FTP
31 mai 2013, parL’outil MédiaSPIP traite aussi les média transférés par la voie FTP. Si vous préférez déposer par cette voie, récupérez les identifiants d’accès vers votre site MédiaSPIP et utilisez votre client FTP favori.
Vous trouverez dès le départ les dossiers suivants dans votre espace FTP : config/ : dossier de configuration du site IMG/ : dossier des média déjà traités et en ligne sur le site local/ : répertoire cache du site web themes/ : les thèmes ou les feuilles de style personnalisées tmp/ : dossier de travail (...) -
Configurer la prise en compte des langues
15 novembre 2010, parAccéder à la configuration et ajouter des langues prises en compte
Afin de configurer la prise en compte de nouvelles langues, il est nécessaire de se rendre dans la partie "Administrer" du site.
De là, dans le menu de navigation, vous pouvez accéder à une partie "Gestion des langues" permettant d’activer la prise en compte de nouvelles langues.
Chaque nouvelle langue ajoutée reste désactivable tant qu’aucun objet n’est créé dans cette langue. Dans ce cas, elle devient grisée dans la configuration et (...)
Sur d’autres sites (6372)
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Our latest improvement to QA : Screenshot Testing
2 octobre 2013, par benaka — DevelopmentIntroduction to QA in Piwik
Like any piece of good software, Piwik comes with a comprehensive QA suite that includes unit and integration tests. The unit tests make sure core components of Piwik work properly. The integration tests make sure Piwik’s tracking and report aggregation and APIs work properly.
To complete our QA suite, we’ve recently added a new type of tests : Screenshot tests, that we use to make sure Piwik’s controller and JavaScript code works properly.
This blog post will explain how they work and describe our experiences setting them up ; we hope to show you an example of innovative QA practices in an active open source project.
Screenshot Tests
As the name implies, our screenshot tests (1) first capture a screenshot of a URL, then (2) compare the result with an expected image. This lets us test the code in Piwik’s controllers and Piwik’s JavaScript simply by specifying a URL.
Contrast this with conventional UI tests that test for page content changes. Such tests require writing large amounts of test code that, at most, check for changes in HTML. Our tests, on the otherhand, will be able to show regressions in CSS and JavaScript rendering logic with a bare minimum of testing code.
Capturing Screenshots
Screenshots are captured using a 3rd party tool. We tried several tools before settling on PhantomJS. PhantomJS executes a JavaScript file with an environment that allows it to create WebKit powered web views. When capturing a screenshot, we supply PhantomJS with a script that :
- opens a web page view,
- loads a URL,
- waits for all AJAX requests to be completed,
- waits for all images to be loaded
- waits for all JavaScript to be run.
Then it renders the completed page to an PNG file.
- To see how we use PhantomJS see capture.js.
- To see how we wait for AJAX requests to complete and images to load see override.js.
Comparing Screenshots
Once a screenshot is generated we test for UI regressions by comparing it with an expected image. There is no sort of fuzzy matching involved. We just check that the images consist of the same bytes.
If a screenshot test fails we use ImageMagick’s compare command line tool to generate an image diff :
In this example above, there was a change that caused the Search box to be hidden in the datatable. This resulted in the whole Data table report being shifted up a few pixels. The differences are visible in red color which gives rapid feedback to the developers what has changed in the last commit.
Screenshot Tests on Travis
We experienced trouble generating identical screenshots on different machines, so our tests were not initially automated by Travis. Once we surpassed this hurdle, we created a new github repo to store our UI tests and screenshots and then enabled the travis build for it. We also made sure that every time a commit is pushed to the Piwik repo, our travis build will push a commit to the UI test repo to run the UI tests.
We decided to create a new repository so the main repository wouldn’t be burdened with the large screenshot files (which git would not handle very well). We also made sure the travis build would upload all the generated screenshots to a server so debugging failures would be easier.
Problems we experienced
Getting generated screenshots to render identically on separate machines was quite a challenge. It took months to figure out how to get it right. Here’s what we learned :
Fonts will render identically on different machines, but different machines can pick the wrong fonts. When we first tried getting these tests to run on Travis, we noticed small differences in the way fonts were rendered on different machines. We thought this was an insurmountable problem that would occur due to the libraries installed on these machines. It turns out, the machines were just picking the wrong fonts. After installing certain fonts during our Travis build, everything started working.
Different versions of GD can generate slightly different images. GD is used in Piwik to, among other things, generate sparkline images. Different versions of GD will result in slightly different images. They look the same to the naked eye, but some pixels will have slightly different colors. This is, unfortunately, a problem we couldn’t solve. We couldn’t make sure that everyone who runs the tests uses the same version of GD, so instead we disabled sparklines for UI testing.
What we learned about existing screenshot capturing tools
We tried several screenshot capturing tools before finding one that would work adequately. Here’s what we learned about them :
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CutyCapt This is the first screenshot capturing tool we tried. CutyCapt is a C++ program that uses QtWebKit to load and take a screenshot of a page. It can’t be used to capture multiple screenshots in one run and it can’t be used to wait for all AJAX/Images/JavaScript to complete/load (at least not currently).
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PhantomJS This is the solution we eventually chose. PhantomJS is a headless scriptable browser that currently uses WebKit as its rendering engine.
For the most part, PhantomJS is the best solution we found. It reliably renders screenshots, allows JavaScript to be injected into pages it loads, and since it essentially just runs JavaScript code that you provide, it can be made to do whatever you want.
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SlimerJS SlimerJS is a clone of PhantomJS that uses Gecko as the rendering engine. It is meant to function similarly to PhantomJS. Unfortunately, due to some limitations hard-coded in Mozilla’s software, we couldn’t use it.
For one, SlimerJS is not headless. There is, apparently, no way to do that when embedding Mozilla. You can, however, run it through xvfb, however the fact that it has to create a window means some odd things can happen. When using SlimerJS, we would sometimes end up with images where tooltips would display as if the mouse was hovering over an element. This inconsistency meant we couldn’t use it for our tests.
One tool we didn’t try was Selenium Webdriver. Although Selenium is traditionally used to create tests that check for HTML content, it can be used to generate screenshots. (Note : PhantomJS supports using a remote WebDriver.)
Our Future Plans for Screenshot Testing
At the moment we render a couple dozen screenshots. We test how our PHP code, JavaScript code and CSS makes Piwik’s UI look, but we don’t test how it behaves. This is our next step.
We want to create Screenshot Unit Tests for each UI control Piwik uses (for example, the Data Table View or the Site Selector). These tests would use the Widgetize plugin to load a control by itself, then execute JavaScript that simulates events and user behavior, and finally take a screenshot. This way we can test how our code handles clicks and hovers and all sorts of other behavior.
Screenshots Tests will make Piwik more stable and keep us agile and able to release early and often. Thank you for your support & Spreading the word about Piwik !
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How to resize video using ffmpeg in php without exec
26 avril 2017, par aspirisenIs it possible to resize video using ffmpeg-php or something another library, because the server throws the error "Warning : exec() has been disabled for security reasons in..."
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cannot convert FLV to MP4 despite compiling ffmpeg with all codecs
1er novembre 2013, par RubytasticTry to convert FLV to MP4 with below params, but it always fails. I included also list of codeces that are compiled in. Why It will not convert the FLV to MP4, who knows ?
ffmpeg -y -i stream2.flv -acodec libmp3lame -ar 44100 -ac 1 -vcodec libx264 stream2.mp4;
ffmpeg version git-2013-11-01-64a0ed1 Copyright (c) 2000-2013 the FFmpeg developers
built on Nov 1 2013 14:44:29 with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-3)
configuration: --prefix=/root/ffmpeg_build --extra-cflags=-I/root/ffmpeg_build/include --extra-ldflags=-L/root/ffmpeg_build/lib --bindir=/root/bin --extra-libs=-ldl --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264
libavutil 52. 49.100 / 52. 49.100
libavcodec 55. 40.100 / 55. 40.100
libavformat 55. 20.100 / 55. 20.100
libavdevice 55. 5.100 / 55. 5.100
libavfilter 3. 90.100 / 3. 90.100
libswscale 2. 5.101 / 2. 5.101
libswresample 0. 17.104 / 0. 17.104
libpostproc 52. 3.100 / 52. 3.100
Input #0, flv, from 'stream2.flv':
Duration: 00:00:01.60, start: 0.000000, bitrate: 636 kb/s
Stream #0:0: Video: h264 (Baseline), yuv420p(tv), 640x480 [SAR 1:1 DAR 4:3], 11.92 tbr, 1k tbn, 60 tbc
Stream #0:1: Audio: speex, 16000 Hz, mono
[graph 1 input from stream 0:1 @ 0xb000d40] Invalid sample format (null)
Error opening filters!i followed the official compile documentation with all the codes, this is my full codec list :
ffmpeg version git-2013-11-01-64a0ed1 Copyright (c) 2000-2013 the FFmpeg developers
built on Nov 1 2013 14:44:29 with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-3)
configuration: --prefix=/root/ffmpeg_build --extra-cflags=-I/root/ffmpeg_build/include --extra-ldflags=-L/root/ffmpeg_build/lib --bindir=/root/bin --extra-libs=-ldl --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264
libavutil 52. 49.100 / 52. 49.100
libavcodec 55. 40.100 / 55. 40.100
libavformat 55. 20.100 / 55. 20.100
libavdevice 55. 5.100 / 55. 5.100
libavfilter 3. 90.100 / 3. 90.100
libswscale 2. 5.101 / 2. 5.101
libswresample 0. 17.104 / 0. 17.104
libpostproc 52. 3.100 / 52. 3.100
Codecs:
D..... = Decoding supported
.E.... = Encoding supported
..V... = Video codec
..A... = Audio codec
..S... = Subtitle codec
...I.. = Intra frame-only codec
....L. = Lossy compression
.....S = Lossless compression
-------
D.VI.. 012v Uncompressed 4:2:2 10-bit
D.V.L. 4xm 4X Movie
D.VI.S 8bps QuickTime 8BPS video
.EVIL. a64_multi Multicolor charset for Commodore 64 (encoders: a64multi )
.EVIL. a64_multi5 Multicolor charset for Commodore 64, extended with 5th color (colram) (encoders: a64multi5 )
D.V..S aasc Autodesk RLE
D.VIL. aic Apple Intermediate Codec
DEVIL. amv AMV Video
D.V.L. anm Deluxe Paint Animation
D.V.L. ansi ASCII/ANSI art
DEVIL. asv1 ASUS V1
DEVIL. asv2 ASUS V2
D.VIL. aura Auravision AURA
D.VIL. aura2 Auravision Aura 2
D.V... avrn Avid AVI Codec
DEVI.. avrp Avid 1:1 10-bit RGB Packer
D.V.L. avs AVS (Audio Video Standard) video
DEVI.. avui Avid Meridien Uncompressed
DEVI.. ayuv Uncompressed packed MS 4:4:4:4
D.V.L. bethsoftvid Bethesda VID video
D.V.L. bfi Brute Force & Ignorance
D.V.L. binkvideo Bink video
D.VI.. bintext Binary text
DEVI.S bmp BMP (Windows and OS/2 bitmap)
D.V..S bmv_video Discworld II BMV video
D.VI.S brender_pix BRender PIX image
D.V.L. c93 Interplay C93
D.V.L. cavs Chinese AVS (Audio Video Standard) (AVS1-P2, JiZhun profile)
D.V.L. cdgraphics CD Graphics video
D.VIL. cdxl Commodore CDXL video
D.V.L. cinepak Cinepak
DEVIL. cljr Cirrus Logic AccuPak
D.VI.S cllc Canopus Lossless Codec
D.V.L. cmv Electronic Arts CMV video (decoders: eacmv )
D.V... cpia CPiA video format
D.V..S cscd CamStudio (decoders: camstudio )
D.VIL. cyuv Creative YUV (CYUV)
D.V.L. dfa Chronomaster DFA
D.V.LS dirac Dirac
DEVIL. dnxhd VC3/DNxHD
DEVI.S dpx DPX (Digital Picture Exchange) image
D.V.L. dsicinvideo Delphine Software International CIN video
DEVIL. dvvideo DV (Digital Video)
D.V..S dxa Feeble Files/ScummVM DXA
D.VI.S dxtory Dxtory
D.V.L. escape124 Escape 124
D.V.L. escape130 Escape 130
D.VILS exr OpenEXR image
DEV..S ffv1 FFmpeg video codec #1
DEVI.S ffvhuff Huffyuv FFmpeg variant
DEV..S flashsv Flash Screen Video v1
DEV.L. flashsv2 Flash Screen Video v2
D.V..S flic Autodesk Animator Flic video
DEV.L. flv1 FLV / Sorenson Spark / Sorenson H.263 (Flash Video) (decoders: flv ) (encoders: flv )
D.V..S fraps Fraps
D.VI.S frwu Forward Uncompressed
D.V.L. g2m Go2Meeting
DEV..S gif GIF (Graphics Interchange Format)
DEV.L. h261 H.261
DEV.L. h263 H.263 / H.263-1996, H.263+ / H.263-1998 / H.263 version 2
D.V.L. h263i Intel H.263
DEV.L. h263p H.263+ / H.263-1998 / H.263 version 2
DEV.LS h264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (encoders: libx264 libx264rgb )
D.V.LS hevc H.265 / HEVC
D.V.L. hnm4video HNM 4 video
DEVI.S huffyuv HuffYUV
D.V.L. idcin id Quake II CIN video (decoders: idcinvideo )
D.VI.. idf iCEDraw text
D.V.L. iff_byterun1 IFF ByteRun1 (decoders: iff )
D.V.L. iff_ilbm IFF ILBM (decoders: iff )
D.V.L. indeo2 Intel Indeo 2
D.V.L. indeo3 Intel Indeo 3
D.V.L. indeo4 Intel Indeo Video Interactive 4
D.V.L. indeo5 Intel Indeo Video Interactive 5
D.V.L. interplayvideo Interplay MVE video
DEVILS jpeg2000 JPEG 2000
DEVILS jpegls JPEG-LS
D.VIL. jv Bitmap Brothers JV video
D.V.L. kgv1 Kega Game Video
D.V.L. kmvc Karl Morton's video codec
D.VI.S lagarith Lagarith lossless
.EVI.S ljpeg Lossless JPEG
D.VI.S loco LOCO
D.V.L. mad Electronic Arts Madcow Video (decoders: eamad )
D.VIL. mdec Sony PlayStation MDEC (Motion DECoder)
D.V.L. mimic Mimic
DEVIL. mjpeg Motion JPEG
D.VIL. mjpegb Apple MJPEG-B
D.V.L. mmvideo American Laser Games MM Video
D.V.L. motionpixels Motion Pixels video
DEV.L. mpeg1video MPEG-1 video
DEV.L. mpeg2video MPEG-2 video (decoders: mpeg2video mpegvideo )
DEV.L. mpeg4 MPEG-4 part 2
..V.L. mpegvideo_xvmc MPEG-1/2 video XvMC (X-Video Motion Compensation)
D.V.L. msa1 MS ATC Screen
D.V.L. msmpeg4v1 MPEG-4 part 2 Microsoft variant version 1
DEV.L. msmpeg4v2 MPEG-4 part 2 Microsoft variant version 2
DEV.L. msmpeg4v3 MPEG-4 part 2 Microsoft variant version 3 (decoders: msmpeg4 ) (encoders: msmpeg4 )
D.V..S msrle Microsoft RLE
D.V.L. mss1 MS Screen 1
D.VIL. mss2 MS Windows Media Video V9 Screen
DEV.L. msvideo1 Microsoft Video 1
D.VI.S mszh LCL (LossLess Codec Library) MSZH
D.V.L. mts2 MS Expression Encoder Screen
D.VIL. mvc1 Silicon Graphics Motion Video Compressor 1
D.VIL. mvc2 Silicon Graphics Motion Video Compressor 2
D.V.L. mxpeg Mobotix MxPEG video
D.V.L. nuv NuppelVideo/RTJPEG
D.V.L. paf_video Amazing Studio Packed Animation File Video
DEVI.S pam PAM (Portable AnyMap) image
DEVI.S pbm PBM (Portable BitMap) image
DEVI.S pcx PC Paintbrush PCX image
DEVI.S pgm PGM (Portable GrayMap) image
DEVI.S pgmyuv PGMYUV (Portable GrayMap YUV) image
D.VIL. pictor Pictor/PC Paint
DEV..S png PNG (Portable Network Graphics) image
DEVI.S ppm PPM (Portable PixelMap) image
DEVIL. prores Apple ProRes (iCodec Pro) (decoders: prores prores_lgpl ) (encoders: prores prores_aw prores_ks )
D.VIL. ptx V.Flash PTX image
D.VI.S qdraw Apple QuickDraw
D.V.L. qpeg Q-team QPEG
DEV..S qtrle QuickTime Animation (RLE) video
DEVI.S r10k AJA Kona 10-bit RGB Codec
DEVI.S r210 Uncompressed RGB 10-bit
DEVI.S rawvideo raw video
D.VIL. rl2 RL2 video
DEV.L. roq id RoQ video (decoders: roqvideo ) (encoders: roqvideo )
D.V.L. rpza QuickTime video (RPZA)
DEV.L. rv10 RealVideo 1.0
DEV.L. rv20 RealVideo 2.0
D.V.L. rv30 RealVideo 3.0
D.V.L. rv40 RealVideo 4.0
D.V.L. sanm LucasArts SMUSH video
DEVI.S sgi SGI image
D.VI.S sgirle SGI RLE 8-bit
D.V.L. smackvideo Smacker video (decoders: smackvid )
D.V.L. smc QuickTime Graphics (SMC)
D.V... smv Sigmatel Motion Video (decoders: smvjpeg )
DEV.LS snow Snow
D.VIL. sp5x Sunplus JPEG (SP5X)
DEVI.S sunrast Sun Rasterfile image
DEV.L. svq1 Sorenson Vector Quantizer 1 / Sorenson Video 1 / SVQ1
D.V.L. svq3 Sorenson Vector Quantizer 3 / Sorenson Video 3 / SVQ3
DEVI.S targa Truevision Targa image
D.VI.. targa_y216 Pinnacle TARGA CineWave YUV16
D.V.L. tgq Electronic Arts TGQ video (decoders: eatgq )
D.V.L. tgv Electronic Arts TGV video (decoders: eatgv )
D.V.L. theora Theora
D.VIL. thp Nintendo Gamecube THP video
D.V.L. tiertexseqvideo Tiertex Limited SEQ video
DEVI.S tiff TIFF image
D.VIL. tmv 8088flex TMV
D.V.L. tqi Electronic Arts TQI video (decoders: eatqi )
D.V.L. truemotion1 Duck TrueMotion 1.0
D.V.L. truemotion2 Duck TrueMotion 2.0
D.V..S tscc TechSmith Screen Capture Codec (decoders: camtasia )
D.V.L. tscc2 TechSmith Screen Codec 2
D.VIL. txd Renderware TXD (TeXture Dictionary) image
D.V.L. ulti IBM UltiMotion (decoders: ultimotion )
DEVI.S utvideo Ut Video
DEVI.S v210 Uncompressed 4:2:2 10-bit
D.VI.S v210x
DEVI.. v308 Uncompressed packed 4:4:4
DEVI.. v408 Uncompressed packed QT 4:4:4:4
DEVI.S v410 Uncompressed 4:4:4 10-bit
D.V.L. vb Beam Software VB
D.VI.S vble VBLE Lossless Codec
D.V.L. vc1 SMPTE VC-1
D.V.L. vc1image Windows Media Video 9 Image v2
D.VIL. vcr1 ATI VCR1
D.VIL. vixl Miro VideoXL (decoders: xl )
D.V.L. vmdvideo Sierra VMD video
D.V..S vmnc VMware Screen Codec / VMware Video
D.V.L. vp3 On2 VP3
D.V.L. vp5 On2 VP5
D.V.L. vp6 On2 VP6
D.V.L. vp6a On2 VP6 (Flash version, with alpha channel)
D.V.L. vp6f On2 VP6 (Flash version)
DEV.L. vp8 On2 VP8 (decoders: vp8 libvpx ) (encoders: libvpx )
DEV.L. vp9 Google VP9 (decoders: vp9 libvpx-vp9 ) (encoders: libvpx-vp9 )
D.VILS webp WebP
DEV.L. wmv1 Windows Media Video 7
DEV.L. wmv2 Windows Media Video 8
D.V.L. wmv3 Windows Media Video 9
D.V.L. wmv3image Windows Media Video 9 Image
D.VIL. wnv1 Winnov WNV1
D.V.L. ws_vqa Westwood Studios VQA (Vector Quantized Animation) video (decoders: vqavideo )
D.V.L. xan_wc3 Wing Commander III / Xan
D.V.L. xan_wc4 Wing Commander IV / Xxan
D.VI.. xbin eXtended BINary text
DEVI.S xbm XBM (X BitMap) image
DEVIL. xface X-face image
DEVI.S xwd XWD (X Window Dump) image
DEVI.. y41p Uncompressed YUV 4:1:1 12-bit
D.V.L. yop Psygnosis YOP Video
DEVI.. yuv4 Uncompressed packed 4:2:0
D.V..S zerocodec ZeroCodec Lossless Video
DEVI.S zlib LCL (LossLess Codec Library) ZLIB
DEV..S zmbv Zip Motion Blocks Video
D.A.L. 8svx_exp 8SVX exponential
D.A.L. 8svx_fib 8SVX fibonacci
DEA.L. aac AAC (Advanced Audio Coding) (decoders: aac libfdk_aac ) (encoders: aac libfdk_aac )
D.A.L. aac_latm AAC LATM (Advanced Audio Coding LATM syntax)
DEA.L. ac3 ATSC A/52A (AC-3) (encoders: ac3 ac3_fixed )
D.A.L. adpcm_4xm ADPCM 4X Movie
DEA.L. adpcm_adx SEGA CRI ADX ADPCM
D.A.L. adpcm_afc ADPCM Nintendo Gamecube AFC
D.A.L. adpcm_ct ADPCM Creative Technology
D.A.L. adpcm_dtk ADPCM Nintendo Gamecube DTK
D.A.L. adpcm_ea ADPCM Electronic Arts
D.A.L. adpcm_ea_maxis_xa ADPCM Electronic Arts Maxis CDROM XA
D.A.L. adpcm_ea_r1 ADPCM Electronic Arts R1
D.A.L. adpcm_ea_r2 ADPCM Electronic Arts R2
D.A.L. adpcm_ea_r3 ADPCM Electronic Arts R3
D.A.L. adpcm_ea_xas ADPCM Electronic Arts XAS
DEA.L. adpcm_g722 G.722 ADPCM (decoders: g722 ) (encoders: g722 )
DEA.L. adpcm_g726 G.726 ADPCM (decoders: g726 ) (encoders: g726 )
D.A.L. adpcm_g726le G.726 ADPCM little-endian (decoders: g726le )
D.A.L. adpcm_ima_amv ADPCM IMA AMV
D.A.L. adpcm_ima_apc ADPCM IMA CRYO APC
D.A.L. adpcm_ima_dk3 ADPCM IMA Duck DK3
D.A.L. adpcm_ima_dk4 ADPCM IMA Duck DK4
D.A.L. adpcm_ima_ea_eacs ADPCM IMA Electronic Arts EACS
D.A.L. adpcm_ima_ea_sead ADPCM IMA Electronic Arts SEAD
D.A.L. adpcm_ima_iss ADPCM IMA Funcom ISS
D.A.L. adpcm_ima_oki ADPCM IMA Dialogic OKI
DEA.L. adpcm_ima_qt ADPCM IMA QuickTime
D.A.L. adpcm_ima_rad ADPCM IMA Radical
D.A.L. adpcm_ima_smjpeg ADPCM IMA Loki SDL MJPEG
DEA.L. adpcm_ima_wav ADPCM IMA WAV
D.A.L. adpcm_ima_ws ADPCM IMA Westwood
DEA.L. adpcm_ms ADPCM Microsoft
D.A.L. adpcm_sbpro_2 ADPCM Sound Blaster Pro 2-bit
D.A.L. adpcm_sbpro_3 ADPCM Sound Blaster Pro 2.6-bit
D.A.L. adpcm_sbpro_4 ADPCM Sound Blaster Pro 4-bit
DEA.L. adpcm_swf ADPCM Shockwave Flash
D.A.L. adpcm_thp ADPCM Nintendo Gamecube THP
D.A.L. adpcm_xa ADPCM CDROM XA
DEA.L. adpcm_yamaha ADPCM Yamaha
DEA..S alac ALAC (Apple Lossless Audio Codec)
D.A.L. amr_nb AMR-NB (Adaptive Multi-Rate NarrowBand) (decoders: amrnb )
D.A.L. amr_wb AMR-WB (Adaptive Multi-Rate WideBand) (decoders: amrwb )
D.A..S ape Monkey's Audio
D.A.L. atrac1 ATRAC1 (Adaptive TRansform Acoustic Coding)
D.A.L. atrac3 ATRAC3 (Adaptive TRansform Acoustic Coding 3)
..A.L. atrac3p ATRAC3+ (Adaptive TRansform Acoustic Coding 3+)
D.A.L. binkaudio_dct Bink Audio (DCT)
D.A.L. binkaudio_rdft Bink Audio (RDFT)
D.A.L. bmv_audio Discworld II BMV audio
..A.L. celt Constrained Energy Lapped Transform (CELT)
DEA.L. comfortnoise RFC 3389 Comfort Noise
D.A.L. cook Cook / Cooker / Gecko (RealAudio G2)
D.A.L. dsicinaudio Delphine Software International CIN audio
DEA.LS dts DCA (DTS Coherent Acoustics) (decoders: dca ) (encoders: dca )
..A.L. dvaudio
DEA.L. eac3 ATSC A/52B (AC-3, E-AC-3)
D.A.L. evrc EVRC (Enhanced Variable Rate Codec)
DEA..S flac FLAC (Free Lossless Audio Codec)
DEA.L. g723_1 G.723.1
D.A.L. g729 G.729
D.A.L. gsm GSM
D.A.L. gsm_ms GSM Microsoft variant
D.A.L. iac IAC (Indeo Audio Coder)
..A.L. ilbc iLBC (Internet Low Bitrate Codec)
D.A.L. imc IMC (Intel Music Coder)
D.A.L. interplay_dpcm DPCM Interplay
D.A.L. mace3 MACE (Macintosh Audio Compression/Expansion) 3:1
D.A.L. mace6 MACE (Macintosh Audio Compression/Expansion) 6:1
D.A.L. metasound Voxware MetaSound
D.A..S mlp MLP (Meridian Lossless Packing)
D.A.L. mp1 MP1 (MPEG audio layer 1) (decoders: mp1 mp1float )
DEA.L. mp2 MP2 (MPEG audio layer 2) (decoders: mp2 mp2float )
DEA.L. mp3 MP3 (MPEG audio layer 3) (decoders: mp3 mp3float ) (encoders: libmp3lame )
D.A.L. mp3adu ADU (Application Data Unit) MP3 (MPEG audio layer 3) (decoders: mp3adu mp3adufloat )
D.A.L. mp3on4 MP3onMP4 (decoders: mp3on4 mp3on4float )
D.A..S mp4als MPEG-4 Audio Lossless Coding (ALS) (decoders: als )
D.A.L. musepack7 Musepack SV7 (decoders: mpc7 )
D.A.L. musepack8 Musepack SV8 (decoders: mpc8 )
DEA.L. nellymoser Nellymoser Asao
DEA.L. opus Opus (Opus Interactive Audio Codec) (decoders: libopus ) (encoders: libopus )
D.A.L. paf_audio Amazing Studio Packed Animation File Audio
DEA.L. pcm_alaw PCM A-law / G.711 A-law
D.A..S pcm_bluray PCM signed 16|20|24-bit big-endian for Blu-ray media
D.A..S pcm_dvd PCM signed 20|24-bit big-endian
DEA..S pcm_f32be PCM 32-bit floating point big-endian
DEA..S pcm_f32le PCM 32-bit floating point little-endian
DEA..S pcm_f64be PCM 64-bit floating point big-endian
DEA..S pcm_f64le PCM 64-bit floating point little-endian
D.A..S pcm_lxf PCM signed 20-bit little-endian planar
DEA.L. pcm_mulaw PCM mu-law / G.711 mu-law
DEA..S pcm_s16be PCM signed 16-bit big-endian
DEA..S pcm_s16be_planar PCM signed 16-bit big-endian planar
DEA..S pcm_s16le PCM signed 16-bit little-endian
DEA..S pcm_s16le_planar PCM signed 16-bit little-endian planar
DEA..S pcm_s24be PCM signed 24-bit big-endian
DEA..S pcm_s24daud PCM D-Cinema audio signed 24-bit
DEA..S pcm_s24le PCM signed 24-bit little-endian
DEA..S pcm_s24le_planar PCM signed 24-bit little-endian planar
DEA..S pcm_s32be PCM signed 32-bit big-endian
DEA..S pcm_s32le PCM signed 32-bit little-endian
DEA..S pcm_s32le_planar PCM signed 32-bit little-endian planar
DEA..S pcm_s8 PCM signed 8-bit
DEA..S pcm_s8_planar PCM signed 8-bit planar
DEA..S pcm_u16be PCM unsigned 16-bit big-endian
DEA..S pcm_u16le PCM unsigned 16-bit little-endian
DEA..S pcm_u24be PCM unsigned 24-bit big-endian
DEA..S pcm_u24le PCM unsigned 24-bit little-endian
DEA..S pcm_u32be PCM unsigned 32-bit big-endian
DEA..S pcm_u32le PCM unsigned 32-bit little-endian
DEA..S pcm_u8 PCM unsigned 8-bit
D.A.L. pcm_zork PCM Zork
D.A.L. qcelp QCELP / PureVoice
D.A.L. qdm2 QDesign Music Codec 2
..A.L. qdmc QDesign Music
DEA.L. ra_144 RealAudio 1.0 (14.4K) (decoders: real_144 ) (encoders: real_144 )
D.A.L. ra_288 RealAudio 2.0 (28.8K) (decoders: real_288 )
D.A..S ralf RealAudio Lossless
DEA.L. roq_dpcm DPCM id RoQ
DEA..S s302m SMPTE 302M
D.A..S shorten Shorten
D.A.L. sipr RealAudio SIPR / ACELP.NET
D.A.L. smackaudio Smacker audio (decoders: smackaud )
..A.L. smv SMV (Selectable Mode Vocoder)
D.A.L. sol_dpcm DPCM Sol
DEA... sonic Sonic
.EA... sonicls Sonic lossless
..A.L. speex Speex
D.A..S tak TAK (Tom's lossless Audio Kompressor)
D.A..S truehd TrueHD
D.A.L. truespeech DSP Group TrueSpeech
DEA..S tta TTA (True Audio)
D.A.L. twinvq VQF TwinVQ
D.A.L. vima LucasArts VIMA audio
D.A.L. vmdaudio Sierra VMD audio
DEA.L. vorbis Vorbis (decoders: vorbis libvorbis ) (encoders: vorbis libvorbis )
..A.L. voxware Voxware RT29 Metasound
D.A... wavesynth Wave synthesis pseudo-codec
DEA.LS wavpack WavPack
D.A.L. westwood_snd1 Westwood Audio (SND1) (decoders: ws_snd1 )
D.A..S wmalossless Windows Media Audio Lossless
D.A.L. wmapro Windows Media Audio 9 Professional
DEA.L. wmav1 Windows Media Audio 1
DEA.L. wmav2 Windows Media Audio 2
D.A.L. wmavoice Windows Media Audio Voice
D.A.L. xan_dpcm DPCM Xan
..D... dvd_nav_packet DVD Nav packet
..D... klv SMPTE 336M Key-Length-Value (KLV) metadata
DES... ass ASS (Advanced SSA) subtitle
DES... dvb_subtitle DVB subtitles (decoders: dvbsub ) (encoders: dvbsub )
..S... dvb_teletext DVB teletext
DES... dvd_subtitle DVD subtitles (decoders: dvdsub ) (encoders: dvdsub )
..S... eia_608 EIA-608 closed captions
D.S... hdmv_pgs_subtitle HDMV Presentation Graphic Stream subtitles (decoders: pgssub )
D.S... jacosub JACOsub subtitle
D.S... microdvd MicroDVD subtitle
DES... mov_text MOV text
D.S... mpl2 MPL2 subtitle
D.S... pjs PJS (Phoenix Japanimation Society) subtitle
D.S... realtext RealText subtitle
D.S... sami SAMI subtitle
DES... srt SubRip subtitle with embedded timing
DES... ssa SSA (SubStation Alpha) subtitle
DES... subrip SubRip subtitle
D.S... subviewer SubViewer subtitle
D.S... subviewer1 SubViewer v1 subtitle
D.S... text raw UTF-8 text
D.S... vplayer VPlayer subtitle
D.S... webvtt WebVTT subtitle
DES... xsub XSUB