Bandi Video LibraryBVL (Bandivid)

Comparisons

Bandi Video Library (BVL) has many more features than BINK.
See the table to compare Bandi Video Library with BINK.

	Bandi Video Library	BINK
Supported OS	Win32, Win64	Win32, PSP, PS2, PS3, Wii, NDS, Xbox, Xbox 360,...
Price (Win32)	$5,900	$8,500
codec	Video: MPEG1 Video, VP8 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)	40~60% (The lower the better)	100%

1. Benchmark: Video Quality

Good video codec has many benefits.
- If the file size is same, the quality of video is more similar to original one.
- If the quality of video is same, it needs less bitrates.


See below process to compare BINK video with Bandi Video Library MPEG1 codec.


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) encoded by Rad Video Tools without sound.
4. Bandi Video encoded by 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
• BINK file(low quality): Robotica_1080_bink_1700k.bik
• BINK file(mid quality): Robotica_1080_bink_2500k.bik
• BINK file(high quality): Robotica_1080_bink_4100k.bik
• Bandi Video file(MPEG1 low quality): Robotica_1080_mpeg1_1700k.avi
• Bandi Video file(MPEG1 mid quality): Robotica_1080_mpeg1_2500k.avi
• Bandi Video file(MPEG1 high quality): Robotica_1080_mpeg1_4100k.avi
• Bandi Video file(VP80 low quality): Robotica_1080_vp80_1700k.avi
• Bandi Video file(VP80 mid quality): Robotica_1080_vp80_2500k.avi
• Bandi Video file(VP80 high quality): Robotica_1080_vp80_4100k.avi

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

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

※ BINK uses unit of Bytes for video file size, on the other hands, Bandi Video Library uses unit of bits.

Image PSNR Comparison

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

Low Quality Image Comparison



 
• Robotica_1080_bink_1700k.bik: average 35.8db
• Robotica_1080_mpeg1_1700k.avi: average 37.6db
• Robotica_1080_vp80_1700k.avi: average 40.4db

Mid Quality Image Comparison



 
• Robotica_1080_bink_2500k.bik: average 37.9db
• Robotica_1080_mpeg1_2500k.avi: average 40.5db
• Robotica_1080_vp80_2500k.avi: average 43.1db

High Quality Image Comparison



 
• Robotica_1080_bink_4100k.bik: average 40.4db
• Robotica_1080_mpeg1_4100k.avi: average 43.4db
• Robotica_1080_vp80_4100k.avi: average 45.0db

Summary

It shows MPEG1 and VP8 video codec compresses video more efficiently than BINK about 40%~60%.





2. Benchmark: CPU Usage

CPU usage is the most important consideration in game. Even 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 uses 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 (10,095KB)
• BINK Test Program: The RAD Video Tools
• Bandi Video Library test video: Robotica_1080_4500k.avi (10,059KB)
• 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.



 

Summary

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