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af_channelmap: ensure the output channel layout is valid.

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Anton Khirnov
2013-04-10 12:40:04 +02:00
parent 949c603ed9
commit 8aaab1113c
1 changed files with 6 additions and 0 deletions
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6
libavfilter/af_channelmap.c
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@@ -270,6 +270,12 @@ static av_cold int channelmap_init(AVFilterContext *ctx)
} }
s->output_layout = fmt; s->output_layout = fmt;
} }
if (!s->output_layout) {
av_log(ctx, AV_LOG_ERROR, "Output channel layout is not set and "
"cannot be guessed from the maps.\n");
return AVERROR(EINVAL);
}
ff_add_channel_layout(&s->channel_layouts, s->output_layout); ff_add_channel_layout(&s->channel_layouts, s->output_layout);
if (mode == MAP_PAIR_INT_STR || mode == MAP_PAIR_STR_STR) { if (mode == MAP_PAIR_INT_STR || mode == MAP_PAIR_STR_STR) {