Pixlet

Pixlet is a video codec created by Apple and based on wavelets, designed to enable viewing of full resolution, HD movies in real time at low DV data rates.^[1] According to Apple's claims, it allows for a 20-25:1 compression ratio. Similar to DV, it does not use interframe compression, making it suitable for previewing in production and special effects studios. It is designed to be an editing codec. However, this makes it poorly suited for broadcast use, due to low bitrates.

When it was introduced by Steve Jobs at Worldwide Developers Conference 2003, it was said that the codec was developed at the request of animation company Pixar.

A Power Macintosh with at least a 1 GHz PowerPC G4 processor is required for real time playback of half resolution High-Definition Video (960x540).

Pixlet, while part of the cross-platform QuickTime, is only available on Macs running Mac OS X v10.3 or later.

References

↑ http://www.technobuffalo.com/2013/06/07/flashback-friday-wwdc-2003/

Multimedia compression and container formats

Video
compression

ISO/IEC	MJPEG Motion JPEG 2000 MPEG-1 MPEG-2 Part 2 MPEG-4 Part 2/ASP Part 10/AVC MPEG-H Part 2/HEVC

ITU-T	H.120 H.261 H.262 H.263 H.264 H.265

SMPTE	VC-1 VC-2 VC-3 VC-5

Others	Apple Video AV1 AVS Bink Cinepak Daala Dirac DV DVI FFV1 Huffyuv Indeo Lagarith Microsoft Video 1 MSU Lossless OMS Video Pixlet ProRes 422 ProRes 4444 QuickTime Animation Graphics RealVideo RTVideo SheerVideo Smacker Sorenson Video, Spark Theora Thor VP3 VP6 VP7 VP8 VP9 WMV XEB YULS

Audio
compression

ISO/IEC	MPEG-1 Layer III (MP3) MPEG-1 Layer II Multichannel MPEG-1 Layer I AAC HE-AAC AAC-LD MPEG Surround MPEG-4 ALS MPEG-4 SLS MPEG-4 DST MPEG-4 HVXC MPEG-4 CELP MPEG-D USAC MPEG-H 3D Audio

ITU-T	G.711 (A-law, µ-law) G.718 G.719 G.722 G.722.1 G.722.2 G.723 G.723.1 G.726 G.728 G.729 G.729.1

IETF	Opus iLBC

3GPP	AMR AMR-WB AMR-WB+ EVRC EVRC-B GSM-HR GSM-FR GSM-EFR

Others	ACELP AC-3 ALAC Asao ATRAC CELT Codec2 DRA DTS FLAC iSAC Monkey's Audio TTA True Audio MT9 Musepack OptimFROG OSQ QCELP RCELP RealAudio RTAudio SD2 SHN SILK Siren SMV Speex SVOPC TwinVQ VMR-WB Vorbis VSELP WavPack WMA MQA aptX

Image
compression

IEC, ISO, ITU-T, W3C, IETF	CCITT Group 4 GIF HEVC JBIG JBIG2 JPEG JPEG 2000 JPEG XR Lossless JPEG PNG TIFF TIFF/EP TIFF/IT

Others	APNG BPG DjVu EXR FLIF ICER MNG PGF QTVR WBMP WebP

Containers

ISO/IEC	MPEG-ES MPEG-PES MPEG-PS MPEG-TS ISO base media file format MPEG-4 Part 14 (MP4) Motion JPEG 2000 MPEG-21 Part 9 MPEG media transport

ITU-T	H.222.0 T.802

IETF	RTP

Others	3GP and 3G2 AMV ASF AIFF AVI AU BPG Bink Smacker BMP DivX Media Format EVO Flash Video GXF IFF M2TS Matroska WebM MXF Ogg QuickTime File Format RatDVD RealMedia RIFF WAV MOD and TOD VOB, IFO and BUP

Collaborations

See Compression methods for methods and Compression software for codecs

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