Video Specifications
The following are preferred digital video specifications
for the delivery of content to be compiled for screening at
the Australian Centre for the Moving Image. MIAF cinema tapes
will be compiled to the Standard Definition DV-PAL format.
SD-PAL Frame Sizes and Pixel Aspect Ratios
· SD-PAL video frame size is 720x576
· 4:3 SD-PAL Pixel Aspect Ratio is 1.0940
· 16:9 SD-PAL Pixel Aspect Ratio is 1.4587
SD-NTSC Frame Sizes and Pixel Aspect Ratios
· SD-NTSC video frame size is 720x480.
· 4:3 SD-NTSC Pixel Aspect Ratio is 0.9091.
· 16:9 SD-NTSC Pixel Aspect Ratio is 1.2121.
· NTSC videos will be converted to PAL.
· NTSC videos will not be resized when converted to PAL
to avoid degradation.
Content delivery Notes
· 16:9 videos are preferred in the Full Height Anamorphic
(FHA) format.
· The “16:9 Anamorphic” format (also known
as 4:3 Letterboxed) should be avoided if possible.
· Videos with Square Pixels will be converted to PAL
pixel aspect ratios.
· Content whose sub-titles that are outside of titles-safe
margins will be resized.
Frame Rates
· The PAL video frame rate is 25fps.
· The NTSC frame rate of 29.97fps will be converted to
PAL’s 25fps.
· Do NOT deliver 24fps videos - they may fail to play
smoothly from a 25fps timeline.
Bit Rates
· Higher bit-rates means less video compression and better
image quality.
· Avoid bit-rates below 6 Mbps for Standard Definition
videos.
Audio Specifications
· 48 kHz Sampling Rate.
· Stereo.
· 128 kbps or above.
· Surround audio is not supported.
Preferred Video CODEC’s
· DV PAL/NTSC (4x3)
· DV PAL/NTSC Anamorphic (16x9)
· Uncompressed 8-bit 4:2:2
· Uncompressed 10-bit 4:2:2
· MPEG 2
· Apple ProRes 4:2:2
· HDV 1080i25 (50i)
· HDV 1080p25
· H.264
· Use high bit-rates for H.264 videos - especially with
High Definition videos.
· The H.264 codec allows for low bit-rate & highly
compressed videos which can be problematic in a compilation
timeline.
Digital Tapes
· BETACAM
· DVCAM
· HDV (NOT the same as HD-CAM)
DVD’s
· Standard PAL/NTSC video DVD’s.
· Use the PAL DVD format if possible to minimise a loss
in image quality arising from NTSC to PAL conversions.
· BluRay Discs are not supported.
· DV files, in the formats listed above, can be submitted
on data-DVD’s.