Bandi Video LibraryBandi Video Library

Comparisons

Bandi Video Library excels in many features than BINK. See below table to compare Bandi Video Library with BINK.

	Bandi Video Library	BINK
Supported OS	Win32	Win32, PSP, PS2, PS3, Wii, NDS, Xbox, Xbox 360,...
Price(Win32)	$2,400	$6,000
codec	Video: MPEG1 Video Audio: MPEG1 Audio Layer2	proprietary audio/video codec. inferior to MPEG1
CPU Usage (P4 , assume BINK to be 100)	50% (The lower the better)	100%
File Size (Same quality by PSNR, assume BINK to be 100)	60~90% (The lower the better)	100%

Picture quality

Better Quality means "If same size, more similar to original picture". As contrary if same quality, it needs less bitrates. Better Quality video codec benefits in many aspects. It can compress video file with more efficient way.

See below process to compare BINK video with Bandi Video Library MPEG1 codec by objective PSNR comparison.

Testing method

1. Download HD WMV testing video file in Microsoft homepage
2. Choose Robotica 1080p as test image (21 sec, 20MB)
3. Bink Video(.bik) encoding by Rad Video Tools without sound.
4. Bandi Video encoding with Bandi Video Converter without sound. The result file is same in size with BINK video file as close as possible by bitrate changing.
5. Compare frame by frame with PSNR analyzing tool.

Test Files

• Original File: Robotica_1080.wmv(19.3MB)
• BINK file(low quality): Robotica_1080_200k.bik(4.0MB)
• BINK file(mid quality): Robotica_1080_300k.bik(5.9MB)
• BINK file(high quality): Robotica_1080_500k.bik(9.9MB)
• Bandi Video file(low quality): Robotica_1080_1700k.avi(4.0MB)
• Bandi Video file(mid quality): Robotica_1080_2600k.avi(5.9MB)
• Bandi Video file(high quality): Robotica_1080_4500k.avi(9.8MB)

※ BINK(.bik) files are playable by installing Rad Video Tools.

※ Bandi Video Files -an AVI files that uses MPEG1 Video and MPEG1 layer 2 video - are playable by installing Bandisoft MPEG1 decoder.

※ BINK uses unit of Byte for video file size, Bandi Video Library uses unit of bits.

Image PSNR Comparison

See below graphs. every frame is decoded and compared frame by frame with PSNR compare tool.
If PSNR value is the higher, video quality is the better.

Low Quality Image Comparison



 
• Robotica_1080_200k.bik: average 35.6db (red)
• Robotica_1080_1700k.avi: average 35.2db (blue)
• BINK is slightly better

Mid Quality Image Comparison



 
• Robotica_1080_300k.bik: average 37.7db (red)
• Robotica_1080_2600k.avi: average 39.4db (blue)
• BVL is better

High Quality Image Comparison



 
• Robotica_1080_500k.bik: average 40.3db (yellow)
• Robotica_1080_4500k.avi: average 43.0db (purple)
• BVL is better

Results

Because it uses log scale, the slight difference between the PSNR values of the image results to great quality difference. It shows MPEG1 video codec compresses video more efficiently than BINK about 40%.

CPU Usages

CPU usage is the most important consideration in game. Though recent CPU improved dramatically, game developers still want to have more CPU power.

As a subsidiary role in games, Video library must not consume too much CPU power.

Bandi Video Library is the best solution which use the least CPU power.

Testing

The following test has been tested on the Intel Atom 330@1.6Ghz CPU. On Core2 Duo/Quad the difference is too small to compare. (On Core2 Duo CPU average usage is about 1~2%.) Same video file(1080p video file) is used to compare codecs .

• CPU: Intel Atom 330@1.6Ghz
• BINK Test video: Robotica_1080_500k.bik(9.9MB)
• BINK Test Program: The RAD Video Tools
• Bandi Video Library test video: Robotica_1080_4500k.avi(9.8MB)
• Bandi Video Library test program: HBitmapSample.exe in Bandi Video SDK

Results

BINK

50~60% of CPU Usage.



 

Bandi Video Library

30%~40% of CPU Usage.



 

Conclusion

Though difference in platform architectures, Bandi Video Library uses CPU resource about 20%~30% less than BINK.