diff options
| author | Mike Isely <isely@pobox.com> | 2008-06-30 03:35:52 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2008-07-20 07:15:52 -0300 |
| commit | 00528d9c2e9e15625883c161867cba61725ba335 (patch) | |
| tree | 22ed2d4ea946c5b71351dc2cd10192490b3ad175 | |
| parent | ab062fe3b540c157eb66c4acedbedbc200cfd9e2 (diff) | |
V4L/DVB (8176): pvrusb2: Update video_gop_size
When switching video standard, ensure that video GOP size remains
appropriately configured.
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-hdw.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c index de0f41b956b..a5217a2cf4c 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c +++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c @@ -2456,18 +2456,35 @@ 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 && |