static int source_config_props(AVFilterLink *outlink)
{
AVFilterContext *ctx = outlink->src;
Frei0rContext *s = ctx->priv;
if (av_image_check_size(s->w, s->h, 0, ctx) < 0)
return AVERROR(EINVAL);
outlink->w = s->w;
outlink->h = s->h;
outlink->time_base = s->time_base;
outlink->frame_rate = av_inv_q(s->time_base);
if (s->destruct && s->instance)
s->destruct(s->instance);
if (!(s->instance = s->construct(outlink->w, outlink->h))) {
av_log(ctx, AV_LOG_ERROR, "Impossible to load frei0r instance.\n");
return AVERROR(EINVAL);
}
if (!s->params) {
av_log(ctx, AV_LOG_ERROR, "frei0r filter parameters not set.\n");
return AVERROR(EINVAL);
}
return set_params(ctx, s->params);
}
static av_cold void uninit(AVFilterContext *ctx)
{
Frei0rContext *s = ctx->priv;
if (s->destruct && s->instance)
s->destruct(s->instance);
if (s->deinit)
s->deinit();
if (s->dl_handle)
dlclose(s->dl_handle);
}
static int config_input_props(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
Frei0rContext *s = ctx->priv;
if (s->destruct && s->instance)
s->destruct(s->instance);
if (!(s->instance = s->construct(inlink->w, inlink->h))) {
av_log(ctx, AV_LOG_ERROR, "Impossible to load frei0r instance.\n");
return AVERROR(EINVAL);
}
return set_params(ctx, s->params);
}
static int set_param(AVFilterContext *ctx, f0r_param_info_t info, int index, char *param)
{
Frei0rContext *s = ctx->priv;
union {
double d;
f0r_param_color_t col;
f0r_param_position_t pos;
} val;
char *tail;
uint8_t rgba[4];
switch (info.type) {
case F0R_PARAM_BOOL:
if (!strcmp(param, "y")) val.d = 1.0;
else if (!strcmp(param, "n")) val.d = 0.0;
else goto fail;
break;
case F0R_PARAM_DOUBLE:
val.d = strtod(param, &tail);
if (*tail || val.d == HUGE_VAL)
goto fail;
break;
case F0R_PARAM_COLOR:
if (sscanf(param, "%f/%f/%f", &val.col.r, &val.col.g, &val.col.b) != 3) {
if (av_parse_color(rgba, param, -1, ctx) < 0)
goto fail;
val.col.r = rgba[0] / 255.0;
val.col.g = rgba[1] / 255.0;
val.col.b = rgba[2] / 255.0;
}
break;
case F0R_PARAM_POSITION:
if (sscanf(param, "%lf/%lf", &val.pos.x, &val.pos.y) != 2)
goto fail;
break;
}
s->set_param_value(s->instance, &val, index);
return 0;
fail:
av_log(ctx, AV_LOG_ERROR, "Invalid value '%s' for parameter '%s'.\n",
param, info.name);
return AVERROR(EINVAL);
}
static int source_request_frame(AVFilterLink *outlink)
{
Frei0rContext *s = outlink->src->priv;
AVFrame *frame = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!frame)
return AVERROR(ENOMEM);
frame->sample_aspect_ratio = (AVRational) {1, 1};
frame->pts = s->pts++;
s->update(s->instance, av_rescale_q(frame->pts, s->time_base, (AVRational){1,1000}),
NULL, (uint32_t *)frame->data[0]);
return ff_filter_frame(outlink, frame);
}
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
Frei0rContext *s = inlink->dst->priv;
AVFilterLink *outlink = inlink->dst->outputs[0];
AVFrame *out;
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!out) {
av_frame_free(&in);
return AVERROR(ENOMEM);
}
av_frame_copy_props(out, in);
s->update(s->instance, in->pts * av_q2d(inlink->time_base) * 1000,
(const uint32_t *)in->data[0],
(uint32_t *)out->data[0]);
av_frame_free(&in);
return ff_filter_frame(outlink, out);
}
static int set_params(AVFilterContext *ctx, const char *params)
{
Frei0rContext *s = ctx->priv;
int i;
for (i = 0; i < s->plugin_info.num_params; i++) {
f0r_param_info_t info;
char *param;
int ret;
s->get_param_info(&info, i);
if (*params) {
if (!(param = av_get_token(¶ms, "|")))
return AVERROR(ENOMEM);
params++; /* skip ':' */
ret = set_param(ctx, info, i, param);
av_free(param);
if (ret < 0)
return ret;
}
av_log(ctx, AV_LOG_VERBOSE,
"idx:%d name:'%s' type:%s explanation:'%s' ",
i, info.name,
info.type == F0R_PARAM_BOOL ? "bool" :
info.type == F0R_PARAM_DOUBLE ? "double" :
info.type == F0R_PARAM_COLOR ? "color" :
info.type == F0R_PARAM_POSITION ? "position" :
info.type == F0R_PARAM_STRING ? "string" : "unknown",
info.explanation);
#ifdef DEBUG
av_log(ctx, AV_LOG_DEBUG, "value:");
switch (info.type) {
void *v;
double d;
char s[128];
f0r_param_color_t col;
f0r_param_position_t pos;
case F0R_PARAM_BOOL:
v = &d;
s->get_param_value(s->instance, v, i);
av_log(ctx, AV_LOG_DEBUG, "%s", d >= 0.5 && d <= 1.0 ? "y" : "n");
break;
case F0R_PARAM_DOUBLE:
v = &d;
s->get_param_value(s->instance, v, i);
av_log(ctx, AV_LOG_DEBUG, "%f", d);
break;
case F0R_PARAM_COLOR:
v = &col;
s->get_param_value(s->instance, v, i);
av_log(ctx, AV_LOG_DEBUG, "%f/%f/%f", col.r, col.g, col.b);
break;
case F0R_PARAM_POSITION:
v = &pos;
s->get_param_value(s->instance, v, i);
av_log(ctx, AV_LOG_DEBUG, "%f/%f", pos.x, pos.y);
break;
default: /* F0R_PARAM_STRING */
v = s;
s->get_param_value(s->instance, v, i);
av_log(ctx, AV_LOG_DEBUG, "'%s'", s);
break;
}
#endif
av_log(ctx, AV_LOG_VERBOSE, ".\n");
}
return 0;
}