Morgan M-JPEG codec V3 developer pages

Codec features ...	Codec specifications ...
Codec settings ...	DirectShow Decompressor specifications ...
	DirectShow Compressor specifications ...
Sample source code ...
Developer forum ...

MJPEG2000 codec: visit our MJPEG2000 LIB SDK page.

1. Codec features :

• 100% software.
   
• Playback hardware M-JPEG AVI files (Rainbow Runner, DC10, DC20, DC30, Buz, ...) without the specific hardware codec.
   
• Realtime software M-JPEG compression on capture cards that does not perform hardware compression (Hauppauge WinTV, Miro PCTV, bt8x8 based cards, ...).
   
• Video Editing of M-JPEG projects without the specific hardware codec.
   
• Software M-JPEG AVI files can be played back by hardware codecs (Rainbow Runner, DC10, DC20, DC30, Buz, ...).
   
• Windows XP, 2000, me, 98, 95, NT, Video for Windows, ActiveMovie & DirectShow, Adobe Premiere, Ulead Media Studio compliant.
   
• MMX, SSE, SSE2, 3DNow!+ and SMP heavily optimized.
   
• DirectDraw YUV accelerated overlay output supported (YUY2, UYVY, ...).
   
• Support most of the M-JPEG formats  (4:2:2, 4:1:1, 4:2:0, MJPG, dmb1, jpeg).

2. Decompressor new features :

• SSE support added.
• SSE2 support added.
• 3DNow!+ support added.
• New SSE/3DNow!+ optimised huffman decoder.
• New SSE/3DNow!+/SSE2 optimised integer iDCT.
• New SSE optimised floating point iDCT.
• New SSE/3DNow!+ optimised color conversion/upsampling functions.
• Redesigned MMX optimised color conversion/upsampling functions.
• Redesigned decompression manager with SMP support.
• Optimised for Windows 2000 & Windows XP.

Benefits :

• “Integer mode” (more accurate) is now faster than older “Fast integer mode”.
• SSE “Float mode” (most accurate) is up to 3.5x faster than older “Float mode”.
• 25% to 50% (Avg 33%) performance boost (V3 Integer vs. V2 Fast integer).
• 300% to 350% (Avg 340%) performance boost (V3 Float/SSE vs. V2 Float).
• 50% to 70% (Avg 65%) performance boost (V3 / 2 CPU, SMP on vs. SMP off).
• 10% to 20% (Avg 17%) performance boost (V3/SSE2 vs. V3/SSE).

3. Compressor new features :

• Brand new compression core with SSE, 3DNow!+ & SSE2 support.
• New MMX/SSE/3DNow!+/SSE2 optimised color conversion/subsampling functions.
• New 4:1:1 subsampling mode.
• New MMX/SSE/3DNow!+/SSE2 optimised integer fDCT.
• New SSE optimised floating point fDCT.
• Redesigned MMX optimised huffman encoder.
• Redesigned compression manager with SMP support.
• Optimised for Windows 2000 & Windows XP.

Benefits :

• “Integer mode” (more accurate) is now faster than older “Fast integer mode”.
• SSE “Float mode” (most accurate) is up to 5x faster than older “Float mode”.
• More accurate and faster color conversion.
• More accurate and faster fDCT.
• 10% to 45% (Avg 33%) performance boost (V3 Integer vs. V2 Fast integer, 4:2:2).
• 20% to 66% (Avg 40%) performance boost (V3 Integer vs. V2 Fast integer, 4:1:1).
• 250% to 430% (Avg 340%) performance boost (V3 Float/SSE vs. V2 Float, 4:2:2).
• 310% to 545% (Avg 400%) performance boost (V3 Float/SSE vs. V2 Float, 4:1:1).
• 80% to 90% (Avg 85%) performance boost (V3 / 2 CPU, SMP on vs. SMP off).
• 10% to 20% (Avg 17%) performance boost (V3/SSE2 vs. V3/SSE).

Test systems