logo


Canon HV30 Post Processing

This info comes from researching the subjects over the web, and some experimentation as well.

First it is important to know the type of footage you have captured.  There are three types you can obtain from the Canon HV30:

HDV – This is 29.97 interlaced frames per second, notated like this: 1080i30 (60i)
HDV(PF24) – 24 progressive frames per second, notated like this: 1080p24
HDV(PF30) – 30 progressive frames per second, notated like this: 1080p30

Audio – The HV30 records on 2 channels and in an MPEG-1 Audio layer at 16 bits at 48kHZ

I am going to concentrate on HDV(PF24) footage.  These are the steps I take with my footage:

Capture and PullDown Removal:

1.  Capture Using HDVSplit
2.  Import into TMPGEnc 4.0 XPress
3.  Click “Filters” button
4.  Make sure “Deinterlace” is checked
5.  Change Deinterlace Mode to “24fps special animation”
6.  Change Deinterlace Method to “Inverse Pulldown”
7.  Click “OK”
8.  Click “Format” button
9.  Chose “HDV format MPEG file” (double click it)
10.  Click “MPEG output” in ‘non-standard settings’ box on the right
11.  Click “yes” when the warning box comes up (who reads those anyway?)
12.  Change framerate to ‘23.976’
13.  Change DC Component to ‘9 bit’
14.  Change Display Mode to ‘progressive’
15.  Save as template if you’d like
16.  Go to Encode and encode – Properties for the output file should read HDV .m2t at 23.976

Importing into Adobe Premiere CS4 or After Effects CS4:

For After Effects, open the footage in the project and drag the footage to the Create New Composition icon. The composition will take on the settings of the footage. For Adobe Premiere CS4, follow the steps below.

1.  Click New Project, name it and click OK
2.  Click HDV 1080p24
3.  The settings should be as follows:

Editing mode: HDV 1080p
Timebase: 23.976fps

Video Settings
Frame size: 1440h 1080v (1.3333)
Frame rate: 23.976 frames/second
Pixel Aspect Ratio: HD Anamorphic 1080 (1.333)
Fields: No Fields (Progressive Scan)

Audio Settings
Sample rate: 48000 samples/second (Hz)

Exporting Video in HD from Adobe Premiere and After Effects CS4 for Upload to Vimeo or YouTube

1.  Use an H.264/MP4 Codec

2.  Vimeo recommends using the following bitrates:

2000 kbits/sec for standard definition 4:3 video, 3000 kbits/sec for widescreen DV, or 5000 kbits/sec for high definition 720p footage.  For export at 1080p high definition, use a 12 mbps bitrate (VBR preferably).

4.  If you have the option to control the pixel aspect ratio (not display aspect ratio) make sure it’s set to “1:1” or “1.00”, also sometimes called “square pixels.”  The standard resolutions are: 640×480 for standard definition 4:3 video, 853×480 for widescreen DV, and 1280×720 or 1920×1080 for high definition.

5.  For the best quality, audio should be set  to a bit rate of 320 kbps/and a sample rate of 48,000Hz (Use 44,100 Hz if there are any A/V sync issues when uploading to YouTube or Vimeo).

Adobe Premiere CS4 Particulars

1.  Under Export Settings, be sure you have “export video” and “export audio” checked off.

2.  Filters tab: Gaussian Blur should not be checked unless you know why you would need it checked.

3.  Multiplexer tab: Multiplexing: MP4 and Stream Compatibility: Standard.

4.  Video Tab: I won’t discuss the obvious ones here.  Set them the same as your source footage.  If you have interlaced footage, set the proper field order according to your source footage.  Set the profile to Main. Level should 4.0 to 4.1 for 720p HD footage and 4.2 or higher for 1080p HD footage.  This setting changes the maximum bitrate available, and is not so important overall as long as you have all the other values set as you want them.  Bitrate Encoding: Set this to either VBR, 1 Pass, or VBR, 2 Pass.  The latter will give you slightly higher video quality, but take longer to encode.  Set Target bitrate and Maximum bitrate as outlined above.

5.  Audio tab: Set audio quality to AAC, Stereo, 48 or 44.1 kHZ, and a bitrate of 320 kbps.  Precedence: check off “frequency

Adobe After Effects CS4 Particulars

1.  Render Settings:

Quality: Best, Resolution: Full, Disk Cache: Read Only, Proxies: Use No Proxies, Effects, Solo Switches, and Color Depth: Current Settings, Guide Layers: All Off, Frame Blending: On for Checked Layers, Field Render: Off, Motion Blur: On for Checked Layers, Time Span: Length of Comp.

Check off the following: Use comp’s frame rate, and Use storage overflow

2.  Output Module Settings:

Format: H264, Post Render Action: None, Channels: RGB, Depth: Millions of Colors, Color: Premultiplied(Matted).  Under Format Options, the tabs are almost the same as in Premiere CS4 so use the same settings as outlined above for both Video and Audio.

Color Management: Leave this tab alone unless you are an advanced user.  A guide by adobe is here:  Color management workflow in Adobe After Effects CS4.

Other Useful Explanations of How things work:

The footage that comes out of Hv20 is 1440×1080 but carries the identity “PAR : 1.33“.  PAR is the Pixel Aspect Ratio.  This means that the pixels recorded by the HV30 are not square, but rectangular.  Each pixel is 1.33 times high as it is wide, making the image squished widthwise.  When interpreted by software, the image becomes unsquished (stretched horizontally) to full HD proportions and a pixel aspect ratio of 1:1, or square pixels.  Why 1440??? Well, 1440x 1.33 = 1920.  After Effects makes this interpretation automatically when you drag footage to the make new composition icon, and premiere makes it when you adjust the new project settings.  So, you don’t have to worry about this at all during export in Premiere CS4 or rendering in After Effects CS4.

All HD video is 16:9

Some Notes on Burning DVD’s:

AVCHD (dvd with HD content) = 18mbps > 13392kbps video and 4608kbps audio (Uncompressed PCM 5.1 @ 16bit/48khz) and you can do the same for bluray, which gives you more space to include other audio tracks and increase the video bitrate.

If you encode videos as AVCHD on dual-layer discs, it will give you a good video bitrate (~12mbps) and the chance to get Uncompressed 5.1 audio at the same time, if you record that type.

An Mpeg-2 Bluray DVD is 1920×1080 24p 25mbps

You can put a complete HD feature on a DVD, single or dual layer, no matter how long it is, as long as it remains within the 4482mb for a 4.7GB or a 8152mb for a 8.5GB disc with the maximum of 18Mbps Audio/Video allowed specs/limit to the AVCHD.

The only factor to adjust  to fit your movie on to different media is the bitrate, the shorter your content is, the higher the bitrate that you can use.  Burned onto a single layer DVD with  a bitrate of 4.5Mbps, a video at 720p is watchable.