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Médias (9)
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Stereo master soundtrack
17 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Audio
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Elephants Dream - Cover of the soundtrack
17 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Image
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#7 Ambience
16 octobre 2011, par
Mis à jour : Juin 2015
Langue : English
Type : Audio
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#6 Teaser Music
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
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#5 End Title
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
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#3 The Safest Place
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
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Sur d’autres sites (6269)
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What is Web Log Analytics and Why You Should Use It
26 juin 2024, par ErinCan’t use JavaScript tracking on your website ? Need a more secure and privacy-friendly way to understand your website visitors ? Web log analytics is your answer. This method pulls data directly from your server logs, offering a secure and privacy-respecting alternative.
In this blog, we cover what web log analytics is, how it compares to JavaScript tracking, who it is best suited for, and why it might be the right choice for you.
What are server logs ?
Before diving in, let’s start with the basics : What are server logs ? Think of your web server as a diary that notes every visit to your website. Each time someone visits, the server records details like :
- User agent : Information about the visitor’s browser and operating system.
- Timestamp : The exact time the request was made.
- Requested URL : The specific page or resource the visitor requested.
These “diary entries” are called server logs, and they provide a detailed record of all interactions with your website.
Server log example
Here’s what a server log looks like :
192.XXX.X.X – – [24/Jun/2024:14:32:01 +0000] “GET /index.html HTTP/1.1” 200 1024 “https://www.example.com/referrer.html” “Mozilla/5.0 (Windows NT 10.0 ; Win64 ; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36”
192.XXX.X.X – – [24/Jun/2024:14:32:02 +0000] “GET /style.css HTTP/1.1” 200 3456 “https://www.example.com/index.html” “Mozilla/5.0 (Windows NT 10.0 ; Win64 ; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36”
192.XXX.X.X – – [24/Jun/2024:14:32:03 +0000] “GET /script.js HTTP/1.1” 200 7890 “https://www.example.com/index.html” “Mozilla/5.0 (Windows NT 10.0 ; Win64 ; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36”
192.XXX.X.X – – [24/Jun/2024:14:32:04 +0000] “GET /images/logo.png HTTP/1.1” 200 1234 “https://www.example.com/index.html” “Mozilla/5.0 (Windows NT 10.0 ; Win64 ; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36”
Breakdown of the log entry
Each line in the server log represents a single request made by a visitor to your website. Here’s a detailed breakdown of what each part means :
- IP Address : 192.XXX.X.X
- This is the IP address of the visitor’s device.
- User Identifier : – –
- These fields are typically used for user identification and authentication, which are not applicable here, hence the hyphens.
- Timestamp : [24/Jun/2024:14:32:01 +0000]
- The date and time of the request, including the timezone.
- Request Line : “GET /index.html HTTP/1.1”
- The request method (GET), the requested resource (/index.html), and the HTTP version (HTTP/1.1).
- Response Code : 200
- The HTTP status code indicates the result of the request (200 means OK).
- Response Size : 1024
- The size of the response in bytes.
- Referrer : “https://www.example.com/referrer.html“
- The URL of the referring page that led the visitor to the current page.
- User Agent : “Mozilla/5.0 (Windows NT 10.0 ; Win64 ; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36”
- Information about the visitor’s browser and operating system.
In the example above, there are multiple log entries for different resources (HTML page, CSS file, JavaScript file, and an image). This shows that when a visitor loads a webpage, multiple requests are made to load all the necessary resources.
What is web log analytics ?
Web log analytics is one of many methods for tracking visitors to your site.
Web log analytics is the process of analysing server log files to track and understand website visitors. Unlike traditional methods that use JavaScript tracking codes embedded in web pages, web log analytics pulls data directly from these server logs.
How it works :
- Visitor request : A visitor’s browser requests your website.
- Server logging : The server logs the request details.
- Analysis : These logs are analysed to extract useful information about your visitors and their activities.
Web log analytics vs. JavaScript tracking
JavaScript tracking
JavaScript tracking is the most common method used to track website visitors. It involves embedding a JavaScript code snippet into your web pages. This code collects data on visitor interactions and sends it to a web analytics platform.
Differences and benefits :
Privacy :
- Web log analytics : Since it doesn’t require embedding tracking codes, it is considered less intrusive and helps maintain higher privacy standards.
- JavaScript tracking : Embeds tracking codes directly on your website, which can be more invasive and raise privacy concerns.
Ease of setup :
- Web log analytics : No need to modify your website’s code. All you need is access to your server logs.
- JavaScript tracking : Requires adding tracking code on your web pages. This is generally an easier setup process.
Data collection :
- Web log analytics : Contain requests of users with adblockers (ghostery, adblock, adblock plus, privacy badger, etc.) sometimes making it more accurate. However, it may miss certain interactive elements like screen resolution or user events. It may also over-report data.
- JavaScript tracking : Can collect a wide range of data, including Custom dimensions, Ecommerce tracking, Heatmaps, Session recordings, Media and Form analytics, etc.
Why choose web log analytics ?
Enhanced privacy
Avoiding embedded tracking codes means there’s no JavaScript running on your visitors’ browsers. This significantly reduces the risk of data leakage and enhances overall privacy.
Comprehensive data collection
It isn’t affected by ad blockers or browser tracking protections, ensuring you capture more complete and accurate data about your visitors.
Historical data analysis
You can import and analyse historical log files, giving you insights into long-term visitor behaviour and trends.
Simple setup
Since it relies on server logs, there’s no need to alter your website’s code. This makes setup straightforward and minimises potential technical issues.
Who should use web log analytics ?
Web log analytics is particularly suited for businesses that prioritise data privacy and security.
Organisations that handle sensitive data, such as banks, healthcare providers, and government agencies, can benefit from the enhanced privacy.
By avoiding JavaScript tracking, these entities minimise data exposure and comply with strict privacy regulations like Sarbanes Oxley and PCI.
Why use Matomo for web log analytics ?
Matomo stands out as a top choice for web log analytics because it prioritises privacy and data ownership
Here’s why :
- Complete data control : You own all your data, so you don’t have to worry about third-party access.
- IP anonymisation : Matomo anonymises IP addresses to further protect user privacy.
- Bot filtering : Automatically excludes bots from your reports, ensuring you get accurate data.
- Simple migration : You can easily switch from other tools like AWStats by importing your historical logs into Matomo.
- Server log recognition : Recognises most server log formats (Apache, Nginx, IIS, etc.).
Start using web log analytics
Web log analytics offers a secure, privacy-focused alternative to traditional JavaScript tracking methods. By analysing server logs, you get valuable insights into your website traffic while maintaining high privacy standards.
If you’re serious about privacy and want reliable data, give Matomo’s web log analytics a try.
Start your 21-day free trial now. No credit card required.
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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 -
What flags should enable to get maximum performance using ffpeg ?
19 octobre 2017, par SamI am using windows, my application is using opencv and for codecs, we have used ffmpeg. We see the performance is very slow, we want to improve it by compiling ffmpeg with all flags which could take hardware and GPU acceleation into consideration.
I did./configure --helpinside the ffmpeg source, I see below list option, can you please tell which all can really imporve the performance. Note that we would like to take advantage of hardware and gpu capabilities.$ ./configure —help
Usage : configure [options]
Options : [defaults in brackets after descriptions]Help options :
—help print this message
—quiet Suppress showing informative output
—list-decoders show all available decoders
—list-encoders show all available encoders
—list-hwaccels show all available hardware accelerators
—list-demuxers show all available demuxers
—list-muxers show all available muxers
—list-parsers show all available parsers
—list-protocols show all available protocols
—list-bsfs show all available bitstream filters
—list-indevs show all available input devices
—list-outdevs show all available output devices
—list-filters show all available filtersStandard options :
—logfile=FILE log tests and output to FILE [ffbuild/config.log]
—disable-logging do not log configure debug information
—fatal-warnings fail if any configure warning is generated
—prefix=PREFIX install in PREFIX [/usr/local]
—bindir=DIR install binaries in DIR [PREFIX/bin]
—datadir=DIR install data files in DIR [PREFIX/share/ffmpeg]
—docdir=DIR install documentation in DIR [PREFIX/share/doc/ffmpeg ]
—libdir=DIR install libs in DIR [PREFIX/lib]
—shlibdir=DIR install shared libs in DIR [LIBDIR]
—incdir=DIR install includes in DIR [PREFIX/include]
—mandir=DIR install man page in DIR [PREFIX/share/man]
—pkgconfigdir=DIR install pkg-config files in DIR [LIBDIR/pkgconfig]
—enable-rpath use rpath to allow installing libraries in paths
not part of the dynamic linker search path
use rpath when linking programs (USE WITH CARE)
—install-name-dir=DIR Darwin directory name for installed targetsLicensing options :
—enable-gpl allow use of GPL code, the resulting libs
and binaries will be under GPL [no]
—enable-version3 upgrade (L)GPL to version 3 [no]
—enable-nonfree allow use of nonfree code, the resulting libs
and binaries will be unredistributable [no]Configuration options :
—disable-static do not build static libraries [no]
—enable-shared build shared libraries [no]
—enable-small optimize for size instead of speed
—disable-runtime-cpudetect disable detecting CPU capabilities at runtime (sma ller binary)
—enable-gray enable full grayscale support (slower color)
—disable-swscale-alpha disable alpha channel support in swscale
—disable-all disable building components, libraries and programs
—disable-autodetect disable automatically detected external libraries [no ]Program options :
—disable-programs do not build command line programs
—disable-ffmpeg disable ffmpeg build
—disable-ffplay disable ffplay build
—disable-ffprobe disable ffprobe build
—disable-ffserver disable ffserver buildDocumentation options :
—disable-doc do not build documentation
—disable-htmlpages do not build HTML documentation pages
—disable-manpages do not build man documentation pages
—disable-podpages do not build POD documentation pages
—disable-txtpages do not build text documentation pagesComponent options :
—disable-avdevice disable libavdevice build
—disable-avcodec disable libavcodec build
—disable-avformat disable libavformat build
—disable-swresample disable libswresample build
—disable-swscale disable libswscale build
—disable-postproc disable libpostproc build
—disable-avfilter disable libavfilter build
—enable-avresample enable libavresample build [no]
—disable-pthreads disable pthreads [autodetect]
—disable-w32threads disable Win32 threads [autodetect]
—disable-os2threads disable OS/2 threads [autodetect]
—disable-network disable network support [no]
—disable-dct disable DCT code
—disable-dwt disable DWT code
—disable-error-resilience disable error resilience code
—disable-lsp disable LSP code
—disable-lzo disable LZO decoder code
—disable-mdct disable MDCT code
—disable-rdft disable RDFT code
—disable-fft disable FFT code
—disable-faan disable floating point AAN (I)DCT code
—disable-pixelutils disable pixel utils in libavutilIndividual component options :
—disable-everything disable all components listed below
—disable-encoder=NAME disable encoder NAME
—enable-encoder=NAME enable encoder NAME
—disable-encoders disable all encoders
—disable-decoder=NAME disable decoder NAME
—enable-decoder=NAME enable decoder NAME
—disable-decoders disable all decoders
—disable-hwaccel=NAME disable hwaccel NAME
—enable-hwaccel=NAME enable hwaccel NAME
—disable-hwaccels disable all hwaccels
—disable-muxer=NAME disable muxer NAME
—enable-muxer=NAME enable muxer NAME
—disable-muxers disable all muxers
—disable-demuxer=NAME disable demuxer NAME
—enable-demuxer=NAME enable demuxer NAME
—disable-demuxers disable all demuxers
—enable-parser=NAME enable parser NAME
—disable-parser=NAME disable parser NAME
—disable-parsers disable all parsers
—enable-bsf=NAME enable bitstream filter NAME
—disable-bsf=NAME disable bitstream filter NAME
—disable-bsfs disable all bitstream filters
—enable-protocol=NAME enable protocol NAME
—disable-protocol=NAME disable protocol NAME
—disable-protocols disable all protocols
—enable-indev=NAME enable input device NAME
—disable-indev=NAME disable input device NAME
—disable-indevs disable input devices
—enable-outdev=NAME enable output device NAME
—disable-outdev=NAME disable output device NAME
—disable-outdevs disable output devices
—disable-devices disable all devices
—enable-filter=NAME enable filter NAME
—disable-filter=NAME disable filter NAME
—disable-filters disable all filters
—disable-v4l2_m2m disable V4L2 mem2mem code [autodetect]External library support :
Using any of the following switches will allow FFmpeg to link to the
corresponding external library. All the components depending on that library
will become enabled, if all their other dependencies are met and they are not
explicitly disabled. E.g. —enable-libwavpack will enable linking to
libwavpack and allow the libwavpack encoder to be built, unless it is
specifically disabled with —disable-encoder=libwavpack.Note that only the system libraries are auto-detected. All the other external
libraries must be explicitly enabled.Also note that the following help text describes the purpose of the libraries
themselves, not all their features will necessarily be usable by FFmpeg.—disable-alsa disable ALSA support [autodetect]
—disable-appkit disable Apple AppKit framework [autodetect]
—disable-avfoundation disable Apple AVFoundation framework [autodetect]
—enable-avisynth enable reading of AviSynth script files [no]
—disable-bzlib disable bzlib [autodetect]
—disable-coreimage disable Apple CoreImage framework [autodetect]
—enable-chromaprint enable audio fingerprinting with chromaprint [no]
—enable-frei0r enable frei0r video filtering [no]
—enable-gcrypt enable gcrypt, needed for rtmp(t)e support
if openssl, librtmp or gmp is not used [no]
—enable-gmp enable gmp, needed for rtmp(t)e support
if openssl or librtmp is not used [no]
—enable-gnutls enable gnutls, needed for https support
if openssl is not used [no]
—disable-iconv disable iconv [autodetect]
—disable-jack disable libjack support [autodetect]
—enable-jni enable JNI support [no]
—enable-ladspa enable LADSPA audio filtering [no]
—enable-libass enable libass subtitles rendering,
needed for subtitles and ass filter [no]
—enable-libbluray enable BluRay reading using libbluray [no]
—enable-libbs2b enable bs2b DSP library [no]
—enable-libcaca enable textual display using libcaca [no]
—enable-libcelt enable CELT decoding via libcelt [no]
—enable-libcdio enable audio CD grabbing with libcdio [no]
—enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
and libraw1394 [no]
—enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
—enable-libflite enable flite (voice synthesis) support via libflite [ no]
—enable-libfontconfig enable libfontconfig, useful for drawtext filter [no]
—enable-libfreetype enable libfreetype, needed for drawtext filter [no]
—enable-libfribidi enable libfribidi, improves drawtext filter [no]
—enable-libgme enable Game Music Emu via libgme [no]
—enable-libgsm enable GSM de/encoding via libgsm [no]
—enable-libiec61883 enable iec61883 via libiec61883 [no]
—enable-libilbc enable iLBC de/encoding via libilbc [no]
—enable-libkvazaar enable HEVC encoding via libkvazaar [no]
—enable-libmodplug enable ModPlug via libmodplug [no]
—enable-libmp3lame enable MP3 encoding via libmp3lame [no]
—enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no ]
—enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
—enable-libopencv enable video filtering via libopencv [no]
—enable-libopenh264 enable H.264 encoding via OpenH264 [no]
—enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
—enable-libopenmpt enable decoding tracked files via libopenmpt [no]
—enable-libopus enable Opus de/encoding via libopus [no]
—enable-libpulse enable Pulseaudio input via libpulse [no]
—enable-librsvg enable SVG rasterization via librsvg [no]
—enable-librubberband enable rubberband needed for rubberband filter [no]
—enable-librtmp enable RTMP[E] support via librtmp [no]
—enable-libshine enable fixed-point MP3 encoding via libshine [no]
—enable-libsmbclient enable Samba protocol via libsmbclient [no]
—enable-libsnappy enable Snappy compression, needed for hap encoding [n o]
—enable-libsoxr enable Include libsoxr resampling [no]
—enable-libspeex enable Speex de/encoding via libspeex [no]
—enable-libssh enable SFTP protocol via libssh [no]
—enable-libtesseract enable Tesseract, needed for ocr filter [no]
—enable-libtheora enable Theora encoding via libtheora [no]
—enable-libtwolame enable MP2 encoding via libtwolame [no]
—enable-libv4l2 enable libv4l2/v4l-utils [no]
—enable-libvidstab enable video stabilization using vid.stab [no]
—enable-libvmaf enable vmaf filter via libvmaf [no]
—enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
—enable-libvorbis enable Vorbis en/decoding via libvorbis,
native implementation exists [no]
—enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
—enable-libwavpack enable wavpack encoding via libwavpack [no]
—enable-libwebp enable WebP encoding via libwebp [no]
—enable-libx264 enable H.264 encoding via x264 [no]
—enable-libx265 enable HEVC encoding via x265 [no]
—enable-libxavs enable AVS encoding via xavs [no]
—enable-libxcb enable X11 grabbing using XCB [autodetect]
—enable-libxcb-shm enable X11 grabbing shm communication [autodetect]
—enable-libxcb-xfixes enable X11 grabbing mouse rendering [autodetect]
—enable-libxcb-shape enable X11 grabbing shape rendering [autodetect]
—enable-libxvid enable Xvid encoding via xvidcore,
native MPEG-4/Xvid encoder exists [no]
—enable-libxml2 enable XML parsing using the C library libxml2 [no]
—enable-libzimg enable z.lib, needed for zscale filter [no]
—enable-libzmq enable message passing via libzmq [no]
—enable-libzvbi enable teletext support via libzvbi [no]
—disable-lzma disable lzma [autodetect]
—enable-decklink enable Blackmagic DeckLink I/O support [no]
—enable-libndi_newtek enable Newteck NDI I/O support [no]
—enable-mediacodec enable Android MediaCodec support [no]
—enable-libmysofa enable libmysofa, needed for sofalizer filter [no]
—enable-openal enable OpenAL 1.1 capture support [no]
—enable-opencl enable OpenCL code
—enable-opengl enable OpenGL rendering [no]
—enable-openssl enable openssl, needed for https support
if gnutls is not used [no]
—disable-sndio disable sndio support [autodetect]
—disable-schannel disable SChannel SSP, needed for TLS support on
Windows if openssl and gnutls are not used [autodetec t]
—disable-sdl2 disable sdl2 [autodetect]
—disable-securetransport disable Secure Transport, needed for TLS support
on OSX if openssl and gnutls are not used [autodetect ]
—disable-xlib disable xlib [autodetect]
—disable-zlib disable zlib [autodetect]The following libraries provide various hardware acceleration features :
—disable-audiotoolbox disable Apple AudioToolbox code [autodetect]
—disable-cuda disable dynamically linked Nvidia CUDA code [autodete ct]
—enable-cuda-sdk enable CUDA features that require the CUDA SDK [no]
—disable-cuvid disable Nvidia CUVID support [autodetect]
—disable-d3d11va disable Microsoft Direct3D 11 video acceleration code [autodetect]
—disable-dxva2 disable Microsoft DirectX 9 video acceleration code [ autodetect]
—enable-libdrm enable DRM code (Linux) [no]
—enable-libmfx enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
—enable-libnpp enable Nvidia Performance Primitives-based code [no]
—enable-mmal enable Broadcom Multi-Media Abstraction Layer (Raspbe rry Pi) via MMAL [no]
—disable-nvenc disable Nvidia video encoding code [autodetect]
—enable-omx enable OpenMAX IL code [no]
—enable-omx-rpi enable OpenMAX IL code for Raspberry Pi [no]
—enable-rkmpp enable Rockchip Media Process Platform code [no]
—disable-vaapi disable Video Acceleration API (mainly Unix/Intel) co de [autodetect]
—disable-vda disable Apple Video Decode Acceleration code [autodet ect]
—disable-vdpau disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
—disable-videotoolbox disable VideoToolbox code [autodetect]Toolchain options :
—arch=ARCH select architecture []
—cpu=CPU select the minimum required CPU (affects
instruction selection, may crash on older CPUs)
—cross-prefix=PREFIX use PREFIX for compilation tools []
—progs-suffix=SUFFIX program name suffix []
—enable-cross-compile assume a cross-compiler is used
—sysroot=PATH root of cross-build tree
—sysinclude=PATH location of cross-build system headers
—target-os=OS compiler targets OS []
—target-exec=CMD command to run executables on target
—target-path=DIR path to view of build directory on target
—target-samples=DIR path to samples directory on target
—tempprefix=PATH force fixed dir/prefix instead of mktemp for checks
—toolchain=NAME set tool defaults according to NAME
—nm=NM use nm tool NM [nm -g]
—ar=AR use archive tool AR [ar]
—as=AS use assembler AS []
—ln_s=LN_S use symbolic link tool LN_S [ln -s -f]
—strip=STRIP use strip tool STRIP [strip]
—windres=WINDRES use windows resource compiler WINDRES [windres]
—x86asmexe=EXE use nasm-compatible assembler EXE [nasm]
—cc=CC use C compiler CC [gcc]
—cxx=CXX use C compiler CXX [g++]
—objcc=OCC use ObjC compiler OCC [gcc]
—dep-cc=DEPCC use dependency generator DEPCC [gcc]
—nvcc=NVCC use Nvidia CUDA compiler NVCC [nvcc]
—ld=LD use linker LD []
—pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [pkg-config]
—pkg-config-flags=FLAGS pass additional flags to pkgconf []
—ranlib=RANLIB use ranlib RANLIB [ranlib]
—doxygen=DOXYGEN use DOXYGEN to generate API doc [doxygen]
—host-cc=HOSTCC use host C compiler HOSTCC
—host-cflags=HCFLAGS use HCFLAGS when compiling for host
—host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
—host-ld=HOSTLD use host linker HOSTLD
—host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
—host-libs=HLIBS use libs HLIBS when linking for host
—host-os=OS compiler host OS []
—extra-cflags=ECFLAGS add ECFLAGS to CFLAGS []
—extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS []
—extra-objcflags=FLAGS add FLAGS to OBJCFLAGS []
—extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS []
—extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS []
—extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS []
—extra-libs=ELIBS add ELIBS []
—extra-version=STRING version string suffix []
—optflags=OPTFLAGS override optimization-related compiler flags
—nvccflags=NVCCFLAGS override nvcc flags [-gencode arch=compute_30,code=sm _30 -O2]
—build-suffix=SUFFIX library name suffix []
—enable-pic build position-independent code
—enable-thumb compile for Thumb instruction set
—enable-lto use link-time optimization
—env="ENV=override" override the environment variablesAdvanced options (experts only) :
—malloc-prefix=PREFIX prefix malloc and related names with PREFIX
—custom-allocator=NAME use a supported custom allocator
—disable-symver disable symbol versioning
—enable-hardcoded-tables use hardcoded tables instead of runtime generation
—disable-safe-bitstream-reader
disable buffer boundary checking in bitreaders
(faster, but may crash)
—sws-max-filter-size=N the max filter size swscale uses [256]Optimization options (experts only) :
—disable-asm disable all assembly optimizations
—disable-altivec disable AltiVec optimizations
—disable-vsx disable VSX optimizations
—disable-power8 disable POWER8 optimizations
—disable-amd3dnow disable 3DNow ! optimizations
—disable-amd3dnowext disable 3DNow ! extended optimizations
—disable-mmx disable MMX optimizations
—disable-mmxext disable MMXEXT optimizations
—disable-sse disable SSE optimizations
—disable-sse2 disable SSE2 optimizations
—disable-sse3 disable SSE3 optimizations
—disable-ssse3 disable SSSE3 optimizations
—disable-sse4 disable SSE4 optimizations
—disable-sse42 disable SSE4.2 optimizations
—disable-avx disable AVX optimizations
—disable-xop disable XOP optimizations
—disable-fma3 disable FMA3 optimizations
—disable-fma4 disable FMA4 optimizations
—disable-avx2 disable AVX2 optimizations
—disable-aesni disable AESNI optimizations
—disable-armv5te disable armv5te optimizations
—disable-armv6 disable armv6 optimizations
—disable-armv6t2 disable armv6t2 optimizations
—disable-vfp disable VFP optimizations
—disable-neon disable NEON optimizations
—disable-inline-asm disable use of inline assembly
—disable-x86asm disable use of standalone x86 assembly
—disable-mipsdsp disable MIPS DSP ASE R1 optimizations
—disable-mipsdspr2 disable MIPS DSP ASE R2 optimizations
—disable-msa disable MSA optimizations
—disable-mipsfpu disable floating point MIPS optimizations
—disable-mmi disable Loongson SIMD optimizations
—disable-fast-unaligned consider unaligned accesses slowDeveloper options (useful when working on FFmpeg itself) :
—disable-debug disable debugging symbols
—enable-debug=LEVEL set the debug level []
—disable-optimizations disable compiler optimizations
—enable-extra-warnings enable more compiler warnings
—disable-stripping disable stripping of executables and shared libraries
—assert-level=level 0(default), 1 or 2, amount of assertion testing,
2 causes a slowdown at runtime.
—enable-memory-poisoning fill heap uninitialized allocated space with arbitra ry data
—valgrind=VALGRIND run "make fate" tests through valgrind to detect memo ry
leaks and errors, using the specified valgrind binary .
Cannot be combined with —target-exec
—enable-ftrapv Trap arithmetic overflows
—samples=PATH location of test samples for FATE, if not set use
$FATE_SAMPLES at make invocation time.
—enable-neon-clobber-test check NEON registers for clobbering (should be
used only for debugging purposes)
—enable-xmm-clobber-test check XMM registers for clobbering (Win64-only ;
should be used only for debugging purposes)
—enable-random randomly enable/disable components
—disable-random
—enable-random=LIST randomly enable/disable specific components or
—disable-random=LIST component groups. LIST is a comma-separated list
of NAME[:PROB] entries where NAME is a component
(group) and PROB the probability associated with
NAME (default 0.5).
—random-seed=VALUE seed value for —enable/disable-random
—disable-valgrind-backtrace do not print a backtrace under Valgrind
(only applies to —disable-optimizations builds)
—enable-osfuzz Enable building fuzzer tool
—libfuzzer=PATH path to libfuzzer
—ignore-tests=TESTS comma-separated list (without "fate-" prefix
in the name) of tests whose result is ignored
—enable-linux-perf enable Linux Performance Monitor APINOTE : Object files are built at the place where configure is launched.
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