libavfilter/af_amix: avoid derreferencing possible null

ff_all_channel_layouts() might return null on alloc failure.

Fixes CID1241516

Signed-off-by: Reynaldo H. Verdejo Pinochet <reynaldo@osg.samsung.com>
This commit is contained in:
Reynaldo H. Verdejo Pinochet 2014-09-26 16:37:28 -03:00
parent 32288234a2
commit a9ea79bb49

View File

@ -528,10 +528,17 @@ static av_cold void uninit(AVFilterContext *ctx)
static int query_formats(AVFilterContext *ctx)
{
AVFilterFormats *formats = NULL;
AVFilterChannelLayouts *layouts;
layouts = ff_all_channel_layouts();
if (!layouts)
return AVERROR(ENOMEM);
ff_add_format(&formats, AV_SAMPLE_FMT_FLT);
ff_add_format(&formats, AV_SAMPLE_FMT_FLTP);
ff_set_common_formats(ctx, formats);
ff_set_common_channel_layouts(ctx, ff_all_channel_layouts());
ff_set_common_channel_layouts(ctx, layouts);
ff_set_common_samplerates(ctx, ff_all_samplerates());
return 0;
}