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<< Click to Display Table of Contents >> Navigation: »No topics above this level« Basic Requirements for Media Shows |
As initial guidance, this section provides a brief overview of media formats and other requirements that enable smooth running of Delta shows.
Movies are typically held on the E:\ drive. A movie consists of a single folder full of files, where each frame of the movie is a separate file. You can load movies onto the server via the ‘Movie Drive’ Windows Share, or locally via a Windows-formatted USB external hard drive (USB3 is supported). Note: TGA files should be placed in a single folder within the Movies folder of the Delta Media Server movie drive and named with a constant number of digits between 4 and 12 digits long, preceded by an underscore like this: •The frame number must be the last set of characters in the filename before the extension. •If files are incorrectly named (or have fewer than 4 digits or greater than 12) there will be no output (playback will be black).
➢See the Delta Workflow Guide for more detailed information about Delta media storage requirements.
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Movie dimensions matter. On older versions of Delta odd sizes may not run or run badly. From Delta 2.6.74 bad dimensions will generate an alert in the Resource Pool. Please be aware of these requirements: 4:2:2 8-bit must have a width divisible by 2 4:2:2 10-bit 7th (not DPX) must have a width divisible by 8 4:2:0 8-bit must have a width and height divisible by 2 YCoCg must have a width and height divisible by 4
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TGA sequences – or 7TH (STH) DPX A7S / CIN / SGI / YUV JPG, JPG2000, BMP, TIFF, PNG 7th420, 7th422, 7th444 Codec filetypes
NotchLC is a Luma & Chroma (YUV) codec that achieves compression rates between 5:1 and 8:1 with minimal perceived quality loss, and is suitable for very large canvases. From Delta 2.8, NotchLC codec in .mov wrappers can be played, but note that audio is not enabled in this format. If exporting from Adobe Media Encoder, first deselect ‘Export Audio’.
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Regarding Wrapped Codec Movies (not appropriate for performance)
DeltaServer can play most popular codec formats, but it is only recommended for prototyping/utility/testing/preview purposes. Wrapped codec movies (.mov, mp4. h264 etc.) come in many types, with numerous settings, and are generally variable bit rate with a much higher and varying CPU load impacting system resources. This makes it difficult to predict server performance and stability. Uncompressed image sequence playback results in a flat load on the system, requiring very little CPU. It relies heavily on GPU, and high bandwidth disks to read the larger files. DeltaServers are built strongly in these areas, and the result is stable, predictable playback.
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The playback capability of servers is set by the disk and graphics configuration specified. Typically each server is configured to meet the customer requirements, playing fully uncompressed 4:4:4 unless otherwise specified. Typical playback rates for common resolutions in 4:4:4
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Typical Capability by Hardware Host Type
* Disk upgrade required
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Servers are specified to meet user media size requirements. Some examples of available movie disk space:
➢Side topic: File Size versus ‘Size on Disk’
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Still image Formats (Typically C:\Images)
JPG, JPEG2000, BMP, DPX, PSD, TIF, TGA, PNG, GIF, A7S. From Delta 2.7 build 7: DPX 2.0HDR. PNG, TIFF and TGA can have 8-bit alpha plane Up to 1920 × 1200 in size (Nano-1) Up to 8192 × 8192 in size (Nano-2, Nano-3) Up to 16384 × 16384 in size (Nucleus / Infinity) Image sizes add up and will fill up RAM (normal Mode) – see Dynamic Image Loading
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Audio Formats (Typically C:\Audio)
Mono WAV preferred Can adjust Speaker Mapping for Mono files Stereo, 5.1 and 7.1 also played Note a 2 GB file size limit for WAV files Can also play MP3, AIFF, and FLAC (introduced Delta 2.7) Can apply rate compensation if required to correct production error in audiovisual sync
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Any Direct Show Compliant Capture Device 1 – 12 DVI Inputs (auto-detect most PC formats) 2 – 8 SDI inputs (manual HD format selection) Composite, sVideo, Webcams No HDCP available (DVD or BluRay players) Number of possible inputs dependent on free slots in the server Number of onscreen live inputs dependent on overall load (other content, graphics resolution) Can ChromaKey, warp, position etc Some capture cards can spoof DVI EDID: example is 3000 × 3000 30 Hz input
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