2. The VP6 codec was introduced in May
2003
In November 2003, On2 announced that VP6 had been chosen as a
codec for China's Enhanced Versatile Disc
In November 2003, On2 announced that the VP6 codec will be used in
products for broadcasting in the field, such as with BBC reporters
Later incarnations of this codec are VP7 and VP8. With the Google
acquisition of On2, VP8 is licensed as open source.
3. On2vps
lossy video compression format
video codecs developed by On2 Technologies
Commonly used by Adobe Flash, Flash Video, and JavaFX media files.
4. On2 VP6 Codec Info
On2 boasts the VP6 video codec performs 40% better quality and 50%
better playback performance over the VP5 codec. On2 also claims that
the TrueMotion VP6 outperforms H.264, Windows Media 9 and Real
Networks 9 codecs in standardized testing.
5. VP6 ALGORITHM FUNDAMENTALS
VP6 is a leading edge video compression algorithm having the following features:
YUV 4:2:0 image format
Macro-block (MB) based coding (MB is 16x16 luma plus two 8x8 chroma)
¼ pixel accuracy motion compensated prediction
8x8 DCT transform
64-level linear quantizer
Prediction loop filter
Frame variable quantization level
Scaling on output after decode
Two entropy coding strategies: Huffman & Binary Arithmetic (BoolCoder)
Extensive context-based entropy coding strategy
6. FRAME TYPES
Intra Frame
Intra, or I-frames, may be reconstructed from their compressed representation
with no reference to other frames in the sequence
Inter Frame
Inter, prediction or P-frames, are encoded differentially with respect to a
previously encoded reference frame in the sequence.
7. Features of VP6
VP6 is a high-quality,
low bitrate video compression codec
can be used as a plug-in within any video processing application that is
capable of utilizing third party codecs.
The codec is free for personal/non-commercial use.
8. Features of VP6
VP6 can play back 1920x1080 HD material on a 2.5 GHz PC and 1280x720
material on a 1.5 GHz PC.
- Supports real-time encoding at full D1 resolution.
- Up to 40% image quality improvement over VP5.
- Up to 50% faster playback than VP5.
- Optimized to produce the best quality video available on high-resolution
material (640x480 and higher).
- Achieves any requested data rate by choosing automatically to adjust
quantization levels, adjust encoded frame dimensions, or drop frames
altogether.
9. XML template for On2 VP6 FLV
creation
<format>
<output>vp6</output>
<file_extension>flv</file_extension>
<video_codec>vp6</video_codec>
<size>320x240</size>
<bitrate>200k</bitrate>
<audio_bitrate>64k</audio_bitrate>
<audio_sample_rate>44100</audio_sample_rate>
<audio_channels_number>2</audio_channels_number>
</format>
