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Code Issues Releases Activity

avfilter/vf_showpalette: Don't pretend disp_palette can fail

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It can't fail, yet it returns an int and other code checks whether it
failed; yet if it did fail, an AVFrame would leak. One could of course
add an av_frame_free for this (that compilers could optimize away), yet
it is easier to simply stop pretending that disp_palette could fail.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2020-06-15 20:01:07 +02:00
parent 05475ad26b
commit 3f2be5372e
1 changed files with 3 additions and 5 deletions
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8
libavfilter/vf_showpalette.c
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@ -76,7 +76,7 @@ static int config_output(AVFilterLink *outlink)
return 0;
}
static int disp_palette(AVFrame *out, const AVFrame *in, int size)
static void disp_palette(AVFrame *out, const AVFrame *in, int size)
{
int x, y, i, j;
uint32_t *dst = (uint32_t *)out->data[0];
@ -88,12 +88,10 @@ static int disp_palette(AVFrame *out, const AVFrame *in, int size)
for (j = 0; j < size; j++)
for (i = 0; i < size; i++)
dst[(y*dst_linesize + x) * size + j*dst_linesize + i] = pal[y*16 + x];
return 0;
}
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
int ret;
AVFrame *out;
AVFilterContext *ctx = inlink->dst;
const ShowPaletteContext *s = ctx->priv;
@ -105,9 +103,9 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
return AVERROR(ENOMEM);
}
av_frame_copy_props(out, in);
ret = disp_palette(out, in, s->size);
disp_palette(out, in, s->size);
av_frame_free(&in);
return ret < 0 ? ret : ff_filter_frame(outlink, out);
return ff_filter_frame(outlink, out);
}
static const AVFilterPad showpalette_inputs[] = {