Canon Format Settings - Import

The following settings apply to all of Canon camera files.

Notes regarding Canon's XF-AVC codec.

• Canon XF-AVC clips are OP-1a clips with LPCM 16- or 24-bit 48 kHz audio.
• Canon XF-AVC media is recorded to a folder structure. Flame interprets that structure to present in MediaHub a clip that includes both audio and video tracks, in a manner similar to its processing of Panasonic P2 media. Enable Browsing > Essence Mode to browse the folder structure and access directly the MXF media files.
• Flame supports both Intra and Long GOP flavors, as well as spanned clips.

Tips when importing Canon spanned clips:

• Canon cameras can split the recording of a long clip in a series of smaller clips, either across many memory cards (spans) or within a single memory card (breaks). Flame rebuilds, from related spans or breaks, a single clip, making it easier to import and manage. But this only works if you preserve the camera original folder structure to be able to rebuild the spanned clips as the MXF files do not contain enough information for that.
• You can browse the individual segments by enabling Browsing > Essence Mode.
• For AAF Conform using the camera original media files, see the AAF Conform topics.

Metadata Settings

Tape Name box

Select an option to determine how the tape name is set when importing clips.

Select:	To:
Enter Tape Name	Activate the Tape Name field where you enter the tape name. When selecting multiple files for import, this tape name is used for all imported files.
Tape Name from File Name	Use the name of the imported file as the tape name.
Tape Name from Directory	Determine the tape name from the detected directory structure. Use the Level field below to configure the relative path to the directory from which the tape name can be determined.
Tape Name from Essence	Use the tape name inferred from the directory structure of the clip.

Level field

Set from which directory the tape name is taken, relative to the location of the clip in the directory structure.

Although available for all types of files, the Level field is intended for directory structures output by film scanners. A typical image file directory structure looks like this: ./<tape>/<resolution>/clip.######. In this case, selecting Levels Up 2 in the Level field identifies the directory that corresponds to the tape name (./<tape>). Enabled if Tape Name is set to Tape From Directory.

Tape Name field

Enter the name to use as tape name when importing the clip. Enabled if Tape Name is set to Enter Tape Name.

Timecode box

Timecode is read from the file header, when present. Not editable.

Clip Settings

Clip Name box

Select how the clip is named when the file is imported.

Select:	To:
Enter Clip Name	Activate the Clip Name field so that you can manually enter the clip name. When selecting multiple files for import, this name is used for all imported files.
Clip Name from File Name	Use the name of the imported file as the clip name.
Clip Name from XML	Use the clip name listed in the XML file accompanying the file.
Clip Name from Essence	Use the clip name inferred from the directory structure of the clip.

Clip Name field

Enter the name to use when importing the clip. Enabled if Name is set to Enter Clip Name.

Image Settings

Aspect Ratio box

Select the aspect ratio assigned to imported clips. Enter Pixel and Enter Aspect affect pixel and frame a pixel and frame aspect ratios respectively. You might need to change the aspect ratio as many applications erroneously write to exported files a pixel aspect ratio of 1 (a square pixel), even for formats that have non-square pixels (NTSC, PAL).

Viewing the clip in the Player with the specified aspect ratio requires you to enable, in the Player, Options > Show Viewing Settings > Use Ratio. The Previewer in the MediaHub always displays clips using the specified aspect ratio.

Note that the application internally uses a frame ratio, not a pixel ratio. To specify a pixel ratio, you must select Enter Pixel Aspect Ratio; Aspect Ratio from Resolution and Aspect Ratio from Header are interpreted as frame ratios.

Aspect Ratio field

Enter the aspect ratio of the imported frames, as a Width:Height ratio. Enabled when the Aspect Ratio box is set to Enter Aspect Ratio or Square Pixels.

YUV Decoding box

Select the YUV colour space used by the clip to import. Because Flame works in the RGB colour space, it needs to translate YUV information into RGB. This setting ensures that the right decoder is used for this. The Auto setting selects the colour decoder based on the resolution of the clip: Rec. 601 for clips with a resolution lower than 720 lines, Rec. 709 for everything else. Specifying the wrong colour space results in colours that are off.

Per Recommendation BT. 2020, UHD media should use the Rec. 2020 colour space. But this is rarely the case at the moment: UHD clips use Rec. 709. The Rec. 2020 option is there is case you come upon a correctly encoded UHD clip.

Include YUV Headroom button

Enable Include YUV Headroom when importing content that has Full Range video levels. Content with Full Range includes original media from cameras, such as:

• Sony S-Log
• ARRI Log-C
• Canon Log
• Panasonic Varicam Log

Include YUV Headroom should also be enabled when importing from grading systems content that has not been legalized. Disable this setting when importing content with legal video levels, like masters or final grade media.

Note: This setting has no impact on media that is not YUV.