diff options
| author | Mike Isely <isely@pobox.com> | 2008-06-29 22:35:52 -0500 |
|---|---|---|
| committer | Mike Isely <isely@pobox.com> | 2008-06-29 22:35:52 -0500 |
| commit | 2ad4308d0841f8adae53a2d3d3cdb5d756383794 (patch) | |
| tree | 3e0c58746326af33cb9754881423fe4333bf3487 /linux/drivers/media/video | |
| parent | 8d7e0f68d005f2a0137230a742adc574e09ada78 (diff) | |
| download | mediapointer-dvb-s2-2ad4308d0841f8adae53a2d3d3cdb5d756383794.tar.gz mediapointer-dvb-s2-2ad4308d0841f8adae53a2d3d3cdb5d756383794.tar.bz2 | |
pvrusb2: Update video_gop_size
From: Mike Isely <isely@pobox.com>
When switching video standard, ensure that video GOP size remains
appropriately configured.
Signed-off-by: Mike Isely <isely@pobox.com>
Diffstat (limited to 'linux/drivers/media/video')
| -rw-r--r-- | linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c index 4b7b9226e..cf56b10d9 100644 --- a/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c +++ b/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c @@ -2480,18 +2480,35 @@ static int pvr2_hdw_commit_execute(struct pvr2_hdw *hdw) /* Handle some required side effects when the video standard is changed.... */ if (hdw->std_dirty) { - /* Rewrite the vertical resolution to be appropriate to the - video standard that has been selected. */ int nvres; + int gop_size; if (hdw->std_mask_cur & V4L2_STD_525_60) { nvres = 480; + gop_size = 15; } else { nvres = 576; + gop_size = 12; } + /* Rewrite the vertical resolution to be appropriate to the + video standard that has been selected. */ if (nvres != hdw->res_ver_val) { hdw->res_ver_val = nvres; hdw->res_ver_dirty = !0; } + /* Rewrite the GOP size to be appropriate to the video + standard that has been selected. */ + if (gop_size != hdw->enc_ctl_state.video_gop_size) { + struct v4l2_ext_controls cs; + struct v4l2_ext_control c1; + memset(&cs, 0, sizeof(cs)); + memset(&c1, 0, sizeof(c1)); + cs.controls = &c1; + cs.count = 1; + c1.id = V4L2_CID_MPEG_VIDEO_GOP_SIZE; + c1.value = gop_size; + cx2341x_ext_ctrls(&hdw->enc_ctl_state, 0, &cs, + VIDIOC_S_EXT_CTRLS); + } } if (hdw->input_dirty && hdw->state_pathway_ok && |