AVC-Intra Format Specifications

AVC-Intra is an HD video format that uses Advanced Video Coding (AVC) compression, just as with AVCHD. However, AVC-Intra uses only intraframe compression (I-frame-only compression) as opposed to the interframe (long-GOP) compression used by AVCHD. AVC-Intra can also record higher-quality color using 10-bit, 4:2:2 color sampling.

Storage Medium

AVC-Intra is recorded on Panasonic P2 cards. As with other formats recorded on Panasonic P2 cards, AVC-Intra is stored in MXF container files. For more information, see Panasonic P2 Card Format Specifications.

Video Standard

The AVC-Intra specification supports 1080i, 1080p, and 720p HD recording standards.

Aspect Ratio

AVC-Intra records HD video with an aspect ratio of 16:9.

Frame Dimensions, Number of Lines, and Resolution

AVC-Intra supports the following HD resolutions:

  • 1920 x 1080: This format is sometimes called Full HD because it contains the full 1920 horizontal pixels of the 1080-line HD format.
  • 1440 x 1080: This is a horizontally subsampled image with 1080 lines.
  • 1280 x 720: This is a full-resolution 720p format.
  • 960 x 720: This is a horizontally subsampled image with 720 lines.
Frame Rate

The specified AVC-Intra frame rates are:

  • NTSC-compatible frame rate: 29.97 fps (1080i60, 1080p30, 720p60, 720p30)
  • PAL-compatible frame rate: 25 fps (1080i50, 1080p25, 720p50, 720p25)
  • Film-compatible frame rate: 23.98 fps (1080p24, 720p24)
Scanning Method

AVC-Intra can record either interlaced or progressive scan images:

  • 1080 lines: Interlaced (1080i) or progressive (1080p)
  • 720 lines: Progressive
Color Recording Method

The 100 Mbps AVC-Intra color sample ratio is 4:2:2, with 10 bits per sample. The 50 Mbps AVC-Intra color sample ratio is 4:2:0, with 10 bits per sample.

Data Rate

AVC-Intra can be recorded at either 100 or 50 Mbps. Lower frame rates reduce the storage space used by your footage.

Data rate
Frame dimensions
Color sample ratio
50 Mbps
1440 x 1080, 960 x 720
4:2:0 with 10 bits per sample
100 Mbps
1920 x 1080, 1280 x 720
4:2:2 with 10 bits per sample
Audio

AVC-Intra camcorders provide four-channel uncompressed audio recording.