diff options
Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-hdw.c')
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-hdw.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c index a7d636f..68f4315 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c +++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c @@ -402,6 +402,52 @@ static int ctrl_freq_set(struct pvr2_ctrl *cptr,int m,int v) return 0; } +static int ctrl_cropl_min_get(struct pvr2_ctrl *cptr, int *left) +{ + struct v4l2_cropcap *cap = &cptr->hdw->cropcap; + if (cap->bounds.width > 0) { + /* This statement is present purely to shut up + checkpatch.pl */ + *left = cap->bounds.left - cap->defrect.left; + } else { + /* This statement is present purely to shut up + checkpatch.pl */ + *left = -119; + } + return 0; +} + +static int ctrl_cropl_max_get(struct pvr2_ctrl *cptr, int *left) +{ + struct v4l2_cropcap *cap = &cptr->hdw->cropcap; + if (cap->bounds.width > 0) { + *left = cap->bounds.left + cap->bounds.width + - cap->defrect.left; + *left += 3; + *left -= cptr->hdw->cropw_val; + } else { + /* This statement is present purely to shut up + checkpatch.pl */ + *left = 340; + } + return 0; +} + +static int ctrl_cropt_min_get(struct pvr2_ctrl *cptr, int *top) +{ + struct v4l2_cropcap *cap = &cptr->hdw->cropcap; + if (cap->bounds.height > 0) { + /* This statement is present purely to shut up + checkpatch.pl */ + *top = cap->bounds.top - cap->defrect.top; + } else { + /* This statement is present purely to shut up + checkpatch.pl */ + *top = -19; + } + return 0; +} + static int ctrl_vres_max_get(struct pvr2_ctrl *cptr,int *vp) { /* Actual maximum depends on the video standard in effect. */ @@ -413,6 +459,19 @@ static int ctrl_vres_max_get(struct pvr2_ctrl *cptr,int *vp) return 0; } +static int ctrl_cropt_max_get(struct pvr2_ctrl *cptr, int *top) +{ + struct v4l2_cropcap *cap = &cptr->hdw->cropcap; + if (cap->bounds.height > 0) { + *top = cap->bounds.top + cap->bounds.height - cap->defrect.top; + *top -= cptr->hdw->croph_val; + } else { + ctrl_vres_max_get(cptr, top); + *top -= 32; + } + return 0; +} + static int ctrl_vres_min_get(struct pvr2_ctrl *cptr,int *vp) { /* Actual minimum depends on device digitizer type. */ @@ -779,6 +838,10 @@ VCREATE_FUNCS(balance) VCREATE_FUNCS(bass) VCREATE_FUNCS(treble) VCREATE_FUNCS(mute) +VCREATE_FUNCS(cropl) +VCREATE_FUNCS(cropt) +VCREATE_FUNCS(cropw) +VCREATE_FUNCS(croph) VCREATE_FUNCS(audiomode) VCREATE_FUNCS(res_hor) VCREATE_FUNCS(res_ver) @@ -849,6 +912,39 @@ static const struct pvr2_ctl_info control_defs[] = { .default_value = 0, DEFREF(mute), DEFBOOL, + }, { + .desc = "Capture left margin", + .name = "crop_left", + .internal_id = PVR2_CID_CROPL, + .default_value = 0, + DEFREF(cropl), + DEFINT(-129, 340), + .get_min_value = ctrl_cropl_min_get, + .get_max_value = ctrl_cropl_max_get, + }, { + .desc = "Capture top margin", + .name = "crop_top", + .internal_id = PVR2_CID_CROPT, + .default_value = 0, + DEFREF(cropt), + DEFINT(-35, 544), + .get_min_value = ctrl_cropt_min_get, + .get_max_value = ctrl_cropt_max_get, + }, { + .desc = "Capture width", + .name = "crop_width", + .internal_id = PVR2_CID_CROPW, + .default_value = 720, + DEFREF(cropw), + DEFINT(388, 849), /* determined empirically, any res_hor>=64 */ + }, { + .desc = "Capture height", + .name = "crop_height", + .internal_id = PVR2_CID_CROPH, + .default_value = 480, + DEFREF(croph), + DEFINT(32, 576), + .get_max_value = ctrl_vres_max_get, },{ .desc = "Video Source", .name = "input", @@ -2092,6 +2188,7 @@ struct pvr2_hdw *pvr2_hdw_create(struct usb_interface *intf, valid_std_mask; } + memset(&hdw->cropcap, 0, sizeof hdw->cropcap); hdw->eeprom_addr = -1; hdw->unit_number = -1; hdw->v4l_minor_number_video = -1; @@ -2528,6 +2625,28 @@ static int pvr2_hdw_commit_execute(struct pvr2_hdw *hdw) /* Can't commit anything until pathway is ok. */ return 0; } + /* The broadcast decoder can only scale down, so if + * res_*_dirty && crop window < output format ==> enlarge crop. + * + * The mpeg encoder receives fields of res_hor_val dots and + * res_ver_val halflines. Limits: hor<=720, ver<=576. + */ + if (hdw->res_hor_dirty && hdw->cropw_val < hdw->res_hor_val) { + hdw->cropw_val = hdw->res_hor_val; + hdw->cropw_dirty = !0; + } else if (hdw->cropw_dirty) { + hdw->res_hor_dirty = !0; /* must rescale */ + hdw->res_hor_val = min(720, hdw->cropw_val); + } + if (hdw->res_ver_dirty && hdw->croph_val < hdw->res_ver_val) { + hdw->croph_val = hdw->res_ver_val; + hdw->croph_dirty = !0; + } else if (hdw->croph_dirty) { + int nvres = hdw->std_mask_cur & V4L2_STD_525_60 ? 480 : 576; + hdw->res_ver_dirty = !0; + hdw->res_ver_val = min(nvres, hdw->croph_val); + } + /* If any of the below has changed, then we can't do the update while the pipeline is running. Pipeline must be paused first and decoder -> encoder connection be made quiescent before we |