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Export images in bview

Export as images or movies from Bview is via Export button under the timeline, it opens a window containing the following parameters :

Input

  • Source : choose from CURRENT (save current sequence), MODULE (save current module), IN/OUT (export frames between IN and OUT bounds), ALL (save all sequences contained in Bview).
  • begin : starting frame.
  • end : ending frame.
  • remove_alpha : to remove alpha in the save (used to reduce the weight of the file for delivery).
  • apply interface settings : apply the selected options in the interface (lut, brighten, gate...) to the image/movie output.
  • apply annotations : insert annotations to the image output.

Output

  • anim : animated sequence.
  • stereo : when checked, allows you to save two files (left and right).
  • file_name : destination file name and path.
  • file_format : file format (PNG, DPX, MOV...).
  • color_space : color space (LINEAR, SRGB, CINEON...).
  • as_link : save as link.

Export DPX

Export as DPX images with DPX Options to define parameter :

  • dpx_depth : bit depth.

Export EXR

Export as EXR images with EXR Options to define parameter :

  • exr_compression : compression algorithms.

Export TIFF

Export as TIFF images with TIFF Options to define parameter :

  • tiff_compression : compression algorithms.

Export JPEG

Export as JPEG images with JPEG Options to define parameter :

  • jpeg_quality : quality.

Export images

Export as images (PNG, CINEON, EXR, JPEG, etc.. ) with File Options to define parameters :

  • frame : frame number on which the sequence begins.
  • padding : sequence padding.

Export movie

Export as movie (.mov) with a set of options to define codec and parameters.

For the moment, only H.264 and DNxHD codecs are available.

DNxHD

Parameters are not customizable, predefined profiles have to be selected.

Profile samples:

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1920x1080 23.976fps 422p 115M
1920x1080 25fps 422p10 185M
1920x1080 50fps 422p 365M
1280x720 23.976fps 422p 90M
1280x720 59.94fps 422p 220M

H.264

3 options can be set for an H264 export.

  • H264_bitrate : video data rates are given in bits per second. The data rate for a video file is the bitrate.
  • H264_frame_rate : a frame rate is the frequency at which an imaging device produces unique consecutive images called frames.
  • H264_profile : set a profile on the output stream. If a profile is specified, it overrides all other settings which guarantees a compatible stream.
    • baseline : mainly for low-cost applications that use few resources, this profile is widely used in mobile applications and video conferencing.
    • main : originally intended for consumer applications, distribution and storage, this profile has become less important since the release of high profile which has the same purpose.
    • high : main profile for broadcast and disk storage, especially for high definition television (profile was adopted for HD DVD and Blue-Ray as well as the French digital TV high definition).

Common values:

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480p: 848x480 baseline profile 1.28Mbps (1280000 bitrate)
480p HQ: 848x480 baseline profile 1.60Mbps (1600000 bitrate)
576p: 1024x576 baseline profile 1.92Mbps (1920000 bitrate)
576p HQ: 1024x576 baseline profile 2.24Mbps (2240000 bitrate)
720p: 1280x720 high profile 2.56Mbps (2560000 bitrate)
720p HQ: 1280x720 high profile 3.20Mbps (3200000 bitrate)
1080p: 1920x1080 high profile 5.12Mbps (5120000 bitrate)
1080p HQ: 1920x1080 high profile 7.68Mbps (7680000 bitrate)
1080p Superbit: 1920x1080 high profile 20.32Mbps (20320000 bitrate)

Resize

It is possible to redefine the output resolution by changing the resize mode resize_mode which is at NONE by default :

  • ABSOLUTE : offer standard sizes (HD, 2K, 1K) or CUSTOM mode to define its own values of width/height.
  • RELATIVE : apply a multiplication factor to the width and height of the input size: keeps the ratio of the image.

BUF Compagnie - Documentation. 2015-04-04.