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fftools/ffmpeg_filter: ensure that the inserted filters exist

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If not, report it as a bug. avfilter_graph_create_filter() will return ENOMEM if the
passed filter argument is NULL, which is misleading.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2024-09-20 10:29:54 -03:00
parent aeb64d6fa5
commit a48eba0021
1 changed files with 5 additions and 1 deletions
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6
fftools/ffmpeg_filter.c
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@ -1444,11 +1444,15 @@ static int insert_filter(AVFilterContext **last_filter, int *pad_idx,
const char *filter_name, const char *args) const char *filter_name, const char *args)
{ {
AVFilterGraph *graph = (*last_filter)->graph; AVFilterGraph *graph = (*last_filter)->graph;
const AVFilter *filter = avfilter_get_by_name(filter_name);
AVFilterContext *ctx; AVFilterContext *ctx;
int ret; int ret;
if (!filter)
return AVERROR_BUG;
ret = avfilter_graph_create_filter(&ctx, ret = avfilter_graph_create_filter(&ctx,
avfilter_get_by_name(filter_name), filter,
filter_name, args, NULL, graph); filter_name, args, NULL, graph);
if (ret < 0) if (ret < 0)
return ret; return ret;