Adobe Media Encoder User Manual
Page 64
Frame Rate
Field Order or Field Type
Aspect or Pixel Aspect Ratio
Profile
Note:
Level
Quality
Good
Best
Speed
Export As Sequence
Header Type
Resize video
Depth
Encoding Passes
M Frames
N Frames
Simple Profile
Undershoot [% target]
sets this value to match the frame dimensions of the source. (See
Frame rate of the output file in frames per second. Some codecs support a specific set of frame rates. When set to Automatic (Based
On Source), Adobe Media Encoder automatically sets this value to match the frame rate of the source. (See
.)
Specifies whether the output file has progressive frames or frames made up of interlaced fields, and if the latter, which
field will be written first. Progressive is the correct setting for computer display and motion picture film. Choose Upper First or Lower First when
exporting video for an interlaced medium, such as NTSC, or PAL. When set to Automatic (Based On Source), Adobe Media Encoder automatically
sets this value to match the field order of the source. (See
.)
Select the pixel aspect ratio appropriate for the output type. When the pixel aspect ratio (displayed in parentheses)
is 1.0, the output will have square pixels; all others will have non-square pixels. Because computers generally display pixels as squares, content
using non-square pixel aspect ratios appear stretched when viewed on a computer but appear with the correct proportions when viewed on a video
monitor. When set to Automatic (Based On Source), in H.264 Blu-ray, MPEG-2 Blu-ray, or MPEG-2-DVD format, Adobe Media Encoder
automatically sets this value to match the pixel aspect ratio of the source. (See
Specifies whether Adobe Media Encoder will use the Baseline, Main, or High profile.
Profile and Level settings are relevant to formats that use variants of MPEG encoding, including H.264. Recommended settings are often a
combination of Profile and Level settings. For example, a common recommendation for high-quality encoding for Internet distribution is a setting of
High Profile, Level 5.1. For more information, see the
.
Level used by Adobe Media Encoder, with ranges that differ depending on output format. This setting, in part, specifies a maximum bitrate.
Generally, higher values increase rendering time and image quality.
Strikes a balance between image quality and the amount of time it takes to encode video. This is the default value.
Creates the best possible image quality, but will take substantially longer to encode video.
Specifies that the video be encoded as fast as possible. However, the image will be of lower quality. Recommended for video
content used in testing deployments.
For still-image export, select this option to export as a sequentially numbered series of still-image files.
Specifies SMPTE/DPX or Cineon header.
Selecting this option allows you to change the frame width and frame height from the size of the input file or sequence. You can
also click a button to maintain the aspect ratio while resizing.
Color depth in bits per pixel.
Number of times the encoder will analyze the clip before encoding. Multiple passes increase the time it takes to encode the
file, but generally result in more efficient compression and higher image quality.
Number of B frames (bi-directional frames) between consecutive I frames (intra-frames) and P frames (predicted frames).
Number of frames between I frames (intra-frames). This value must be a multiple of the M frames value.
Available only when exporting in the FLV video format using the On2 VP6 codec, selecting Simple Profile optimizes high-resolution
video content that will be played back on older computers or other devices with limited memory and processing resources.
Available only when exporting in the FLV video format using the On2 VP6 codec, this option lets you specify the
percentage of the target data rate to shoot for so that additional data is available in the buffer to improve difficult sections.
62