static int SharpenCallback(vlc_object_t *obj, const char *varname,
vlc_value_t prev, vlc_value_t cur, void *data)
{
filter_sys_t *sys = data;
union { uint32_t u; float f; } u;
u.f = vlc_to_vdp_sigma(cur.f_float);
atomic_store(&sys->sigma, u.u);
(void) obj; (void) varname; (void) prev;
return VLC_SUCCESS;
}
static int Open(vlc_object_t *obj)
{
filter_t *filter = (filter_t *)obj;
if (filter->fmt_in.video.i_chroma != VLC_CODEC_VDPAU_VIDEO_420
&& filter->fmt_in.video.i_chroma != VLC_CODEC_VDPAU_VIDEO_422
&& filter->fmt_in.video.i_chroma != VLC_CODEC_VDPAU_VIDEO_444)
return VLC_EGENERIC;
if (!video_format_IsSimilar(&filter->fmt_in.video, &filter->fmt_out.video))
return VLC_EGENERIC;
/* Check for sharpen support */
vdp_t *vdp;
VdpDevice device;
VdpStatus err;
VdpBool ok;
err = vdp_get_x11(NULL, -1, &vdp, &device);
if (err != VDP_STATUS_OK)
return VLC_EGENERIC; /* Weird. The decoder should be active... */
err = vdp_video_mixer_query_feature_support(vdp, device,
VDP_VIDEO_MIXER_FEATURE_SHARPNESS, &ok);
if (err != VDP_STATUS_OK)
ok = VDP_FALSE;
vdp_release_x11(vdp);
if (ok != VDP_TRUE)
{
msg_Err(filter, "sharpening/blurring not supported by VDPAU device");
return VLC_EGENERIC;
}
/* Initialization */
filter_sys_t *sys = malloc(sizeof (*sys));
if (unlikely(sys == NULL))
return VLC_ENOMEM;
filter->pf_video_filter = Sharpen;
filter->p_sys = sys;
config_ChainParse(filter, "sharpen-", options, filter->p_cfg);
var_AddCallback(filter, "sharpen-sigma", SharpenCallback, sys);
union { uint32_t u; float f; } u;
u.f = vlc_to_vdp_sigma(var_CreateGetFloatCommand(filter, "sharpen-sigma"));
atomic_init(&sys->sigma, u.u);
return VLC_SUCCESS;
}
