diff options
Diffstat (limited to 'linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c')
| -rw-r--r-- | linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c index 5db03eeda..cf56b10d9 100644 --- a/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c +++ b/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c @@ -2477,22 +2477,38 @@ static int pvr2_hdw_commit_execute(struct pvr2_hdw *hdw) struct pvr2_ctrl *cptr; int disruptive_change; - /* When video standard changes, reset the hres and vres values - - but if the user has pending changes there, then let the changes - take priority. */ + /* 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 && |