static int filter_frame(AVFilterLink *link, AVFrame *picref)
{
AVFilterContext *ctx = link->dst;
IDETContext *idet = ctx->priv;
AVDictionary **metadata = avpriv_frame_get_metadatap(picref);
if (idet->prev)
av_frame_free(&idet->prev);
idet->prev = idet->cur;
idet->cur = idet->next;
idet->next = picref;
if (!idet->cur)
return 0;
if (!idet->prev)
idet->prev = av_frame_clone(idet->cur);
if (!idet->csp)
idet->csp = av_pix_fmt_desc_get(link->format);
if (idet->csp->comp[0].depth_minus1 / 8 == 1){
idet->filter_line = (ff_idet_filter_func)ff_idet_filter_line_c_16bit;
if (ARCH_X86)
ff_idet_init_x86(idet, 1);
}
filter(ctx);
av_dict_set_int(metadata, "lavfi.idet.tff", idet->prestat[TFF], 0);
av_dict_set_int(metadata, "lavfi.idet.bff", idet->prestat[BFF], 0);
av_dict_set_int(metadata, "lavfi.idet.progressive", idet->prestat[PROGRESSIVE], 0);
av_dict_set_int(metadata, "lavfi.idet.undetermined", idet->prestat[UNDETERMINED], 0);
return ff_filter_frame(ctx->outputs[0], av_frame_clone(idet->cur));
}
static int filter_frame(AVFilterLink *link, AVFrame *picref)
{
AVFilterContext *ctx = link->dst;
IDETContext *idet = ctx->priv;
if (idet->prev)
av_frame_free(&idet->prev);
idet->prev = idet->cur;
idet->cur = idet->next;
idet->next = picref;
if (!idet->cur)
return 0;
if (!idet->prev)
idet->prev = av_frame_clone(idet->cur);
if (!idet->csp)
idet->csp = av_pix_fmt_desc_get(link->format);
if (idet->csp->comp[0].depth_minus1 / 8 == 1){
idet->filter_line = (ff_idet_filter_func)ff_idet_filter_line_c_16bit;
if (ARCH_X86)
ff_idet_init_x86(idet, 1);
}
filter(ctx);
return ff_filter_frame(ctx->outputs[0], av_frame_clone(idet->cur));
}
static av_cold int init(AVFilterContext *ctx)
{
IDETContext *idet = ctx->priv;
idet->last_type = UNDETERMINED;
memset(idet->history, UNDETERMINED, HIST_SIZE);
idet->filter_line = ff_idet_filter_line_c;
if (ARCH_X86)
ff_idet_init_x86(idet, 0);
return 0;
}
static av_cold int init(AVFilterContext *ctx)
{
IDETContext *idet = ctx->priv;
idet->eof = 0;
idet->last_type = UNDETERMINED;
memset(idet->history, UNDETERMINED, HIST_SIZE);
if( idet->half_life > 0 )
idet->decay_coefficient = (uint64_t) round( PRECISION * exp2(-1.0 / idet->half_life) );
else
idet->decay_coefficient = PRECISION;
idet->filter_line = ff_idet_filter_line_c;
if (ARCH_X86)
ff_idet_init_x86(idet, 0);
return 0;
}
static int filter_frame(AVFilterLink *link, AVFrame *picref)
{
AVFilterContext *ctx = link->dst;
IDETContext *idet = ctx->priv;
// initial frame(s) and not interlaced, just pass through for
// the analyze_interlaced_flag mode
if (idet->analyze_interlaced_flag &&
!picref->interlaced_frame &&
!idet->next) {
return ff_filter_frame(ctx->outputs[0], picref);
}
if (idet->analyze_interlaced_flag_done) {
if (picref->interlaced_frame && idet->interlaced_flag_accuracy < 0)
picref->interlaced_frame = 0;
return ff_filter_frame(ctx->outputs[0], picref);
}
av_frame_free(&idet->prev);
if( picref->width != link->w
|| picref->height != link->h
|| picref->format != link->format) {
link->dst->inputs[0]->format = picref->format;
link->dst->inputs[0]->w = picref->width;
link->dst->inputs[0]->h = picref->height;
av_frame_free(&idet->cur );
av_frame_free(&idet->next);
}
idet->prev = idet->cur;
idet->cur = idet->next;
idet->next = picref;
if (!idet->cur &&
!(idet->cur = av_frame_clone(idet->next)))
return AVERROR(ENOMEM);
if (!idet->prev)
return 0;
if (!idet->csp)
idet->csp = av_pix_fmt_desc_get(link->format);
if (idet->csp->comp[0].depth > 8){
idet->filter_line = (ff_idet_filter_func)ff_idet_filter_line_c_16bit;
if (ARCH_X86)
ff_idet_init_x86(idet, 1);
}
if (idet->analyze_interlaced_flag) {
if (idet->cur->interlaced_frame) {
idet->cur->interlaced_frame = 0;
filter(ctx);
if (idet->last_type == PROGRESSIVE) {
idet->interlaced_flag_accuracy --;
idet->analyze_interlaced_flag --;
} else if (idet->last_type != UNDETERMINED) {
idet->interlaced_flag_accuracy ++;
idet->analyze_interlaced_flag --;
}
if (idet->analyze_interlaced_flag == 1) {
ff_filter_frame(ctx->outputs[0], av_frame_clone(idet->cur));
if (idet->next->interlaced_frame && idet->interlaced_flag_accuracy < 0)
idet->next->interlaced_frame = 0;
idet->analyze_interlaced_flag_done = 1;
av_log(ctx, AV_LOG_INFO, "Final flag accuracy %d\n", idet->interlaced_flag_accuracy);
return ff_filter_frame(ctx->outputs[0], av_frame_clone(idet->next));
}
}
} else {
filter(ctx);
}
return ff_filter_frame(ctx->outputs[0], av_frame_clone(idet->cur));
}
