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lavfi/pixdesctest: fix chroma subsampling with odd sizes.

This commit is contained in:
Clément Bœsch 2013-05-16 18:54:28 +02:00
parent 35cf069aea
commit 7ba04b3c48
1 changed files with 7 additions and 6 deletions
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13
libavfilter/vf_pixdesctest.c
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@ -59,6 +59,8 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
AVFilterLink *outlink = inlink->dst->outputs[0];
AVFrame *out;
int i, c, w = inlink->w, h = inlink->h;
const int cw = FF_CEIL_RSHIFT(w, priv->pix_desc->log2_chroma_w);
const int ch = FF_CEIL_RSHIFT(h, priv->pix_desc->log2_chroma_h);
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!out) {
@ -69,12 +71,11 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
av_frame_copy_props(out, in);
for (i = 0; i < 4; i++) {
int h = outlink->h;
h = i == 1 || i == 2 ? h>>priv->pix_desc->log2_chroma_h : h;
const int h1 = i == 1 || i == 2 ? ch : h;
if (out->data[i]) {
uint8_t *data = out->data[i] +
(out->linesize[i] > 0 ? 0 : out->linesize[i] * (h-1));
memset(data, 0, FFABS(out->linesize[i]) * h);
(out->linesize[i] > 0 ? 0 : out->linesize[i] * (h1-1));
memset(data, 0, FFABS(out->linesize[i]) * h1);
}
}
@ -84,8 +85,8 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
memcpy(out->data[1], in->data[1], AVPALETTE_SIZE);
for (c = 0; c < priv->pix_desc->nb_components; c++) {
int w1 = c == 1 || c == 2 ? w>>priv->pix_desc->log2_chroma_w : w;
int h1 = c == 1 || c == 2 ? h>>priv->pix_desc->log2_chroma_h : h;
const int w1 = c == 1 || c == 2 ? cw : w;
const int h1 = c == 1 || c == 2 ? ch : h;
for (i = 0; i < h1; i++) {
av_read_image_line(priv->line,