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vf_pixdesctest: switch to filter_frame

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Based on patch by Anton Khirnov
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-11-28 20:18:27 +01:00
parent 1f94f86ab5
commit e42b7ff2b2
1 changed files with 22 additions and 43 deletions
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65
libavfilter/vf_pixdesctest.c
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@ -52,86 +52,65 @@ static int config_props(AVFilterLink *inlink)
return 0;
}
static int start_frame(AVFilterLink *inlink, AVFilterBufferRef *picref)
static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *in)
{
PixdescTestContext *priv = inlink->dst->priv;
AVFilterLink *outlink = inlink->dst->outputs[0];
AVFilterBufferRef *outpicref, *for_next_filter;
int i, ret = 0;
AVFilterBufferRef *out;
int i, c, w = inlink->w, h = inlink->h;
outpicref = ff_get_video_buffer(outlink, AV_PERM_WRITE,
outlink->w, outlink->h);
if (!outpicref)
out = ff_get_video_buffer(outlink, AV_PERM_WRITE,
outlink->w, outlink->h);
if (!out) {
avfilter_unref_bufferp(&in);
return AVERROR(ENOMEM);
}
avfilter_copy_buffer_ref_props(outpicref, picref);
avfilter_copy_buffer_ref_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;
if (outpicref->data[i]) {
uint8_t *data = outpicref->data[i] +
(outpicref->linesize[i] > 0 ? 0 : outpicref->linesize[i] * (h-1));
memset(data, 0, FFABS(outpicref->linesize[i]) * 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);
}
}
/* copy palette */
if (priv->pix_desc->flags & PIX_FMT_PAL ||
priv->pix_desc->flags & PIX_FMT_PSEUDOPAL)
memcpy(outpicref->data[1], picref->data[1], AVPALETTE_SIZE);
for_next_filter = avfilter_ref_buffer(outpicref, ~0);
if (for_next_filter)
ret = ff_start_frame(outlink, for_next_filter);
else
ret = AVERROR(ENOMEM);
if (ret < 0) {
avfilter_unref_bufferp(&outpicref);
return ret;
}
outlink->out_buf = outpicref;
return 0;
}
static int draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
{
PixdescTestContext *priv = inlink->dst->priv;
AVFilterBufferRef *inpic = inlink->cur_buf;
AVFilterBufferRef *outpic = inlink->dst->outputs[0]->out_buf;
int i, c, w = inlink->w;
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;
int y1 = c == 1 || c == 2 ? y>>priv->pix_desc->log2_chroma_h : y;
for (i = y1; i < y1 + h1; i++) {
for (i = 0; i < h1; i++) {
av_read_image_line(priv->line,
(void*)inpic->data,
inpic->linesize,
(void*)in->data,
in->linesize,
priv->pix_desc,
0, i, c, w1, 0);
av_write_image_line(priv->line,
outpic->data,
outpic->linesize,
out->data,
out->linesize,
priv->pix_desc,
0, i, c, w1);
}
}
return ff_draw_slice(inlink->dst->outputs[0], y, h, slice_dir);
avfilter_unref_bufferp(&in);
return ff_filter_frame(outlink, out);
}
static const AVFilterPad avfilter_vf_pixdesctest_inputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.start_frame = start_frame,
.draw_slice = draw_slice,
.filter_frame = filter_frame,
.config_props = config_props,
.min_perms = AV_PERM_READ,
},