Compressor 3.5. Pristine Format Conversions.

Compressor 3.5 uses optical flow technology to perform format and standards conversions with beautiful results. Convert NTSC to PAL, SD to HD, or interlaced video to a progressive format. Create flawless retiming effects. Or use the reverse telecine feature to restore the original frame rate of a film by removing pulldown.

Optical flow technology

Optical flow is a sophisticated method of motion analysis that tracks an image pixel by pixel to create “new” frames with stunningly smooth results. Compressor uses optical flow analysis to scale video, perform interlace and deinterlace operations, and change the frame rate for format and standards conversions as well as retiming effects. Compressor 3.5 offers significantly reduced rendering time thanks to improved optical flow technology.

Standards conversions

Run international standards conversions in either direction between NTSC and PAL or between 50Hz and 60Hz HD formats. Thanks to optical flow technology, the video in the new format will have the same quality as the original source file while maintaining smooth playback.

Video retiming

Flexible retiming controls in Compressor let you speed up, slow down, or fit your video to a time duration. Compressor interpolates frames for pristine retiming effects. If you prefer to use all of the existing frames, you can use frame mapping to adjust the playback speed of your clip to fit exactly the frame rate you need. Both types of retiming include automatic pitch adjustment for audio. Preview retiming effects of either type and make adjustments in real time as you work.

Reverse telecine

Compressor gives you the ability to convert 29.97-fps material to 23.98 fps. This process is called 3:2 pulldown removal, or reverse telecine. In fact there is a wide range of pulldown schemes, or cadences, in addition to 3:2, and a sequence may include footage with multiple cadences. Compressor uses an adaptive cadence approach to sample and analyse the footage, then select the dominant cadence to use for conversion.