af_channelmap: ensure the output channel layout is valid.

This commit is contained in:
Anton Khirnov 2013-04-10 12:40:04 +02:00
parent 949c603ed9
commit 8aaab1113c

View File

@ -270,6 +270,12 @@ static av_cold int channelmap_init(AVFilterContext *ctx)
}
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);
if (mode == MAP_PAIR_INT_STR || mode == MAP_PAIR_STR_STR) {