[FFmpeg-devel] [PATCH 3/3] lavf/qsv_vpp: fix compiling warning

Zhong Li zhong.li at intel.com
Wed Nov 15 11:04:18 EET 2017


fix the compiling warning of "ignoring return value"

Signed-off-by: Zhong Li <zhong.li at intel.com>
---
 libavfilter/vf_vpp_qsv.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/libavfilter/vf_vpp_qsv.c b/libavfilter/vf_vpp_qsv.c
index eb2f1cc..bc059cc 100644
--- a/libavfilter/vf_vpp_qsv.c
+++ b/libavfilter/vf_vpp_qsv.c
@@ -332,6 +332,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *picref)
 
 static int query_formats(AVFilterContext *ctx)
 {
+    int ret;
     AVFilterFormats *in_fmts, *out_fmts;
     static const enum AVPixelFormat in_pix_fmts[] = {
         AV_PIX_FMT_YUV420P,
@@ -349,8 +350,10 @@ static int query_formats(AVFilterContext *ctx)
 
     in_fmts  = ff_make_format_list(in_pix_fmts);
     out_fmts = ff_make_format_list(out_pix_fmts);
-    ff_formats_ref(in_fmts, &ctx->inputs[0]->out_formats);
-    ff_formats_ref(out_fmts, &ctx->outputs[0]->in_formats);
+    if ((ret = ff_formats_ref(in_fmts, &ctx->inputs[0]->out_formats)) < 0)
+        return ret;
+    if ((ret = ff_formats_ref(out_fmts, &ctx->outputs[0]->in_formats)) < 0)
+        return ret;
 
     return 0;
 }
-- 
1.8.3.1



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