static int config_out_props(AVFilterLink *outlink)
{
AVFilterContext *ctx = outlink->src;
AVFilterLink *inlink = outlink->src->inputs[0];
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(outlink->format);
TInterlaceContext *tinterlace = ctx->priv;
tinterlace->vsub = desc->log2_chroma_h;
outlink->flags |= FF_LINK_FLAG_REQUEST_LOOP;
outlink->w = inlink->w;
outlink->h = tinterlace->mode == MODE_MERGE || tinterlace->mode == MODE_PAD ?
inlink->h*2 : inlink->h;
if (tinterlace->mode == MODE_PAD) {
uint8_t black[4] = { 16, 128, 128, 16 };
int i, ret;
if (ff_fmt_is_in(outlink->format, full_scale_yuvj_pix_fmts))
black[0] = black[3] = 0;
ret = av_image_alloc(tinterlace->black_data, tinterlace->black_linesize,
outlink->w, outlink->h, outlink->format, 1);
if (ret < 0)
return ret;
/* fill black picture with black */
for (i = 0; i < 4 && tinterlace->black_data[i]; i++) {
int h = i == 1 || i == 2 ? FF_CEIL_RSHIFT(outlink->h, desc->log2_chroma_h) : outlink->h;
memset(tinterlace->black_data[i], black[i],
tinterlace->black_linesize[i] * h);
}
}
if ((tinterlace->flags & TINTERLACE_FLAG_VLPF)
&& !(tinterlace->mode == MODE_INTERLEAVE_TOP
|| tinterlace->mode == MODE_INTERLEAVE_BOTTOM)) {
av_log(ctx, AV_LOG_WARNING, "low_pass_filter flag ignored with mode %d\n",
tinterlace->mode);
tinterlace->flags &= ~TINTERLACE_FLAG_VLPF;
}
if (tinterlace->mode == MODE_INTERLACEX2) {
outlink->time_base.num = inlink->time_base.num;
outlink->time_base.den = inlink->time_base.den * 2;
outlink->frame_rate = av_mul_q(inlink->frame_rate, (AVRational){2,1});
} else if (tinterlace->mode != MODE_PAD) {
outlink->frame_rate = av_mul_q(inlink->frame_rate, (AVRational){1,2});
}
if (tinterlace->flags & TINTERLACE_FLAG_VLPF) {
tinterlace->lowpass_line = lowpass_line_c;
if (ARCH_X86)
ff_tinterlace_init_x86(tinterlace);
}
av_log(ctx, AV_LOG_VERBOSE, "mode:%d filter:%s h:%d -> h:%d\n",
tinterlace->mode, (tinterlace->flags & TINTERLACE_FLAG_VLPF) ? "on" : "off",
inlink->h, outlink->h);
return 0;
}
static int config_out_props(AVFilterLink *outlink)
{
AVFilterContext *ctx = outlink->src;
AVFilterLink *inlink = outlink->src->inputs[0];
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(outlink->format);
TInterlaceContext *tinterlace = ctx->priv;
int i;
tinterlace->vsub = desc->log2_chroma_h;
outlink->w = inlink->w;
outlink->h = tinterlace->mode == MODE_MERGE || tinterlace->mode == MODE_PAD || tinterlace->mode == MODE_MERGEX2?
inlink->h*2 : inlink->h;
if (tinterlace->mode == MODE_MERGE || tinterlace->mode == MODE_PAD || tinterlace->mode == MODE_MERGEX2)
outlink->sample_aspect_ratio = av_mul_q(inlink->sample_aspect_ratio,
av_make_q(2, 1));
if (tinterlace->mode == MODE_PAD) {
uint8_t black[4] = { 0, 0, 0, 16 };
int ret;
ff_draw_init(&tinterlace->draw, outlink->format, 0);
ff_draw_color(&tinterlace->draw, &tinterlace->color, black);
if (ff_fmt_is_in(outlink->format, full_scale_yuvj_pix_fmts))
tinterlace->color.comp[0].u8[0] = 0;
ret = av_image_alloc(tinterlace->black_data, tinterlace->black_linesize,
outlink->w, outlink->h, outlink->format, 16);
if (ret < 0)
return ret;
ff_fill_rectangle(&tinterlace->draw, &tinterlace->color, tinterlace->black_data,
tinterlace->black_linesize, 0, 0, outlink->w, outlink->h);
}
if (tinterlace->flags & (TINTERLACE_FLAG_VLPF | TINTERLACE_FLAG_CVLPF)
&& !(tinterlace->mode == MODE_INTERLEAVE_TOP
|| tinterlace->mode == MODE_INTERLEAVE_BOTTOM)) {
av_log(ctx, AV_LOG_WARNING, "low_pass_filter flags ignored with mode %d\n",
tinterlace->mode);
tinterlace->flags &= ~(TINTERLACE_FLAG_VLPF | TINTERLACE_FLAG_CVLPF);
}
tinterlace->preout_time_base = inlink->time_base;
if (tinterlace->mode == MODE_INTERLACEX2) {
tinterlace->preout_time_base.den *= 2;
outlink->frame_rate = av_mul_q(inlink->frame_rate, (AVRational){2,1});
outlink->time_base = av_mul_q(inlink->time_base , (AVRational){1,2});
} else if (tinterlace->mode == MODE_MERGEX2) {
outlink->frame_rate = inlink->frame_rate;
outlink->time_base = inlink->time_base;
} else if (tinterlace->mode != MODE_PAD) {
outlink->frame_rate = av_mul_q(inlink->frame_rate, (AVRational){1,2});
outlink->time_base = av_mul_q(inlink->time_base , (AVRational){2,1});
}
for (i = 0; i<FF_ARRAY_ELEMS(standard_tbs); i++){
if (!av_cmp_q(standard_tbs[i], outlink->time_base))
break;
}
if (i == FF_ARRAY_ELEMS(standard_tbs) ||
(tinterlace->flags & TINTERLACE_FLAG_EXACT_TB))
outlink->time_base = tinterlace->preout_time_base;
tinterlace->csp = av_pix_fmt_desc_get(outlink->format);
if (tinterlace->flags & TINTERLACE_FLAG_CVLPF) {
if (tinterlace->csp->comp[0].depth > 8)
tinterlace->lowpass_line = lowpass_line_complex_c_16;
else
tinterlace->lowpass_line = lowpass_line_complex_c;
if (ARCH_X86)
ff_tinterlace_init_x86(tinterlace);
} else if (tinterlace->flags & TINTERLACE_FLAG_VLPF) {
if (tinterlace->csp->comp[0].depth > 8)
tinterlace->lowpass_line = lowpass_line_c_16;
else
tinterlace->lowpass_line = lowpass_line_c;
if (ARCH_X86)
ff_tinterlace_init_x86(tinterlace);
}
av_log(ctx, AV_LOG_VERBOSE, "mode:%d filter:%s h:%d -> h:%d\n", tinterlace->mode,
(tinterlace->flags & TINTERLACE_FLAG_CVLPF) ? "complex" :
(tinterlace->flags & TINTERLACE_FLAG_VLPF) ? "linear" : "off",
inlink->h, outlink->h);
return 0;
}
