[mythtv-users] PVR-250 and low frame rate

[Neal Cruz]

Hi,

I've just set up MythTV and have one nagging problem. My PVR-250 seems to
capture video at half the frame rate.

The video plays correctly in mythtv but the OSD shows the total time to be
half the correct value, and the seconds on the OSD pass at half the rate.
For example, a 30min program will show a total time of something like 14:57

Also the preview window in the watch recording screen plays very fast.

I capture at 640x480 MPEG2-PS bitrate 4400-7000

Maybe I'm missing an important setting?

Here are my settings from test_ioctl -a

ioctl: IVTV_IOC_G_CODEC
Codec parameters
aspect      : 2
audio       : 0x00e9
bframes     : 3
bitrate_mode: 0
bitrate     : 4400000
bitrate_peak: 7000000
dnr_mode    : 0
dnr_spatial : 3
dnr_temporal: 6
dnr_type    : 0
framerate   : 0
framespergop: 15
gop_closure : 0
pulldown    : 0
stream_type : 0
ioctl: VIDIOC_G_FMT
        Type   : Video Capture
        Width  : 720
        Height : 480
ioctl: VIDIOC_QUERYCAP
        Driver name   : ivtv
        Card type     : Vanilla iTVC15 card
        Bus info      : 0
        Driver version: 265
        Capabilities  : 0x01030011
ioctl: VIDIOC_ENUMINPUT
        Name    : Composite 0
        Type    : 0x00000002
        Audioset: 0x00000001
        Tuner   : 0x00000000
        Standard: 0x            3000 ( NTSC )
        Status  : 0
        Name    : Composite 1
        Type    : 0x00000002
        Audioset: 0x00000001
        Tuner   : 0x00000000
        Standard: 0x            3000 ( NTSC )
        Status  : 0
        Name    : Composite 2
        Type    : 0x00000002
        Audioset: 0x00000001
        Tuner   : 0x00000000
        Standard: 0x            3000 ( NTSC )
        Status  : 0
        Name    : Composite 3
        Type    : 0x00000002
        Audioset: 0x00000001
        Tuner   : 0x00000000
        Standard: 0x            3000 ( NTSC )
        Status  : 0
        Name    : Tuner 0
        Type    : 0x00000001
        Audioset: 0x00000000
        Tuner   : 0x00000000
        Standard: 0x            3000 ( NTSC )
        Status  : 0
        Name    : Composite 4
        Type    : 0x00000002
        Audioset: 0x00000001
        Tuner   : 0x00000000
        Standard: 0x            3000 ( NTSC )
        Status  : 0
        Name    : S-Video 0
        Type    : 0x00000002
        Audioset: 0x00000001
        Tuner   : 0x00000000
        Standard: 0x            3000 ( NTSC )
        Status  : 0
        Name    : S-Video 1
        Type    : 0x00000002
        Audioset: 0x00000001
        Tuner   : 0x00000000
        Standard: 0x            3000 ( NTSC )
        Status  : 0
        Name    : S-Video 2
        Type    : 0x00000002
        Audioset: 0x00000001
        Tuner   : 0x00000000
        Standard: 0x            3000 ( NTSC )
        Status  : 0
        Name    : S-Video 3
        Type    : 0x00000002
        Audioset: 0x00000001
        Tuner   : 0x00000000
        Standard: 0x            3000 ( NTSC )
        Status  : 0
ioctl: VIDIOC_G_INPUT
Input = 4
ioctl: VIDIOC_G_FREQUENCY
Frequency = 7412
ioctl: VIDIOC_ENUMSTD
        ID          : 0x            3000
        Name        : NTSC
        Frame period: 1001/30000
        Frame lines : 525
        ID          : 0x              FF
        Name        : PAL
        Frame period: 1/25
        Frame lines : 625
        ID          : 0x          7F0000
        Name        : SECAM
        Frame period: 1/25
        Frame lines : 625
ioctl: VIDIOC_G_STD
Standard = 0x00003000
ioctl: VIDIOC_QUERYCTRL
Brightness = 127
Contrast = 57
Saturation = 63
Hue = 0
Volume = 58950
Mute = 0


-Neal