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avfilter/avfiltergraph: remove unnecessary channel layout copy 

It's not modified, so we can simply use a const pointer to it.
Also check the return value of the other copy in the function while at it.

Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2022-08-05 20:13:33 -03:00
parent b710698790
commit d93e29154f
1 changed files with 8 additions and 7 deletions
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15
libavfilter/avfiltergraph.c
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@ -729,12 +729,12 @@ static int reduce_formats_on_filter(AVFilterContext *filter)
/* reduce channel layouts */
for (i = 0; i < filter->nb_inputs; i++) {
AVFilterLink *inlink = filter->inputs[i];
AVChannelLayout fmt = { 0 };
const AVChannelLayout *fmt;
if (!inlink->outcfg.channel_layouts ||
inlink->outcfg.channel_layouts->nb_channel_layouts != 1)
continue;
av_channel_layout_copy(&fmt, &inlink->outcfg.channel_layouts->channel_layouts[0]);
fmt = &inlink->outcfg.channel_layouts->channel_layouts[0];
for (j = 0; j < filter->nb_outputs; j++) {
AVFilterLink *outlink = filter->outputs[j];
@ -745,24 +745,25 @@ static int reduce_formats_on_filter(AVFilterContext *filter)
continue;
if (fmts->all_layouts &&
(KNOWN(&fmt) || fmts->all_counts)) {
(KNOWN(fmt) || fmts->all_counts)) {
/* Turn the infinite list into a singleton */
fmts->all_layouts = fmts->all_counts = 0;
if (ff_add_channel_layout(&outlink->incfg.channel_layouts, &fmt) < 0)
if (ff_add_channel_layout(&outlink->incfg.channel_layouts, fmt) < 0)
ret = 1;
break;
}
for (k = 0; k < outlink->incfg.channel_layouts->nb_channel_layouts; k++) {
if (!av_channel_layout_compare(&fmts->channel_layouts[k], &fmt)) {
av_channel_layout_copy(&fmts->channel_layouts[0], &fmt);
if (!av_channel_layout_compare(&fmts->channel_layouts[k], fmt)) {
ret = av_channel_layout_copy(&fmts->channel_layouts[0], fmt);
if (ret < 0)
return ret;
fmts->nb_channel_layouts = 1;
ret = 1;
break;
}
}
}
av_channel_layout_uninit(&fmt);
}
return ret;