[mythtv-users] HD-PVR Framerate

[mythtv]

Does anyone know how to set the HD-PVR to record at 30fps instead of
60?  In trying to get the Pi3 to work, it was discovered that all of my
recordings are 720p at 59.94 fps instead 29.97.  Below is the output of
v4l2-ctl. Looking at the output below, it would seem that it would be
recording in 480i but full frame of 480 instead of half that.

I'm on an older kernel because newer kernels don't seem to be stable
enough (The HD-PVR just stops recording after a few minutes).  I'm
feeding it video from a u-verse STB that is locked at 720p.  Does the
HD-PVR get it's framerate from the component video?  I'm considering
setting the STB to 1080i but I hate to have to deal with deinterlacing
it during playback.  I've never had good results with doing that so I'd
rather just record it in Progressive mode.

mythbe ~ # v4l2-ctl --all -d /dev/hdpvr0
Driver Info (not using libv4l2):
        Driver name   : hdpvr
        Card type     : Hauppauge HD PVR
        Bus info      : usb-0000:00:1d.7-6
        Driver version: 3.12.0
        Capabilities  : 0x81020001
                Video Capture
                Audio
                Read/Write
                Device Capabilities
        Device Caps   : 0x01020001
                Video Capture
                Audio
                Read/Write
Priority: 2
Video input : 0 (Component: ok)
Audio input : 2 (SPDIF)
Video Standard = 0x0000b000
        NTSC-M/M-JP/M-KR
DV timings:
        Active width: 720
        Active height: 480
        Total width: 858
        Total height: 525
        Frame format: interlaced
        Polarities: -vsync -hsync
        Pixelclock: 13500000 Hz (59.94 fields per second)
        Horizontal frontporch: 19
        Horizontal sync: 62
        Horizontal backporch: 57
        Field 1:
        Vertical frontporch: 4
        Vertical sync: 3
        Vertical backporch: 15
        Field 2:
        Vertical frontporch: 4
        Vertical sync: 3
        Vertical backporch: 16
        Standards: CEA-861
        Flags: half-line
DV timings capabilities:
        Minimum Width: 720
        Maximum Width: 1920
        Minimum Height: 480
        Maximum Height: 1080
        Minimum PClock: 27000000
        Maximum PClock: 74250000
        Standards: CEA-861
        Capabilities: Interlaced, Progressive
Format Video Capture:
        Width/Height      : 720/480
        Pixel Format      : 'MPEG'
        Field             : Interlaced
        Bytes per Line    : 0
        Size Image        : 8192
        Colorspace        : SMPTE 170M
        Transfer Function : Default
        YCbCr Encoding    : Default
        Quantization      : Default

User Controls

                     brightness (int)    : min=0 max=255 step=1
default=128 value=128 flags=slider
                       contrast (int)    : min=0 max=255 step=1
default=64 value=64 flags=slider
                     saturation (int)    : min=0 max=255 step=1
default=64 value=64 flags=slider
                            hue (int)    : min=0 max=30 step=1
default=15 value=14 flags=slider
                      sharpness (int)    : min=0 max=255 step=1
default=128 value=128 flags=slider

Codec Controls

                    stream_type (menu)   : min=0 max=1 default=1 value=1
flags=update
                 audio_encoding (menu)   : min=0 max=4 default=3 value=4
flags=update
                 video_encoding (menu)   : min=0 max=2 default=2 value=2
             video_bitrate_mode (menu)   : min=0 max=1 default=1 value=0
flags=update
                  video_bitrate (int)    : min=1000000 max=13500000
step=100000 default=6500000 value=7000000
             video_peak_bitrate (int)    : min=1100000 max=20200000
step=100000 default=9000000 value=9000000