[FFmpeg-cvslog] dnn_backend_native_layer_avgpool: Fix invalid assignment, use av_assert

[Andreas Rheinhardt]

ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinhardt at gmail.com> | Fri Aug 21 13:47:27 2020 +0200| [128e6df1cd79076e3d5f51bbc88607b3d1c62689] | committer: Guo, Yejun

dnn_backend_native_layer_avgpool: Fix invalid assignment, use av_assert

dnn_execute_layer_avg_pool() contains the following line:

assert(avgpool_params->padding_method = VALID);

This statement contains an assignment where obviously a comparison was
intended. Furthermore, *avgpool_params is const, so that the attempted
assignment leads to a compilation failure if asserts are enabled
(i.e. if DEBUG is defined which leads libavutil/internal.h to not define
NDEBUG). Moreover, the enumeration constant VALID actually has the value 0,
so that the assert would be triggered if a compiler compiles this with
asserts enabled. Finally, the statement uses assert() directly instead
of av_assert*().

All these errors have been fixed.

Thanks to ubitux for providing a FATE-box [1] where DEBUG is defined.

[1]: http://fate.ffmpeg.org/history.cgi?slot=x86_64-archlinux-gcc-ddebug

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at gmail.com>
Reviewed-by: Guo, Yejun <yejun.guo at intel.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=128e6df1cd79076e3d5f51bbc88607b3d1c62689
---

 libavfilter/dnn/dnn_backend_native_layer_avgpool.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavfilter/dnn/dnn_backend_native_layer_avgpool.c b/libavfilter/dnn/dnn_backend_native_layer_avgpool.c
index d745c35b4a..8d4d8db98c 100644
--- a/libavfilter/dnn/dnn_backend_native_layer_avgpool.c
+++ b/libavfilter/dnn/dnn_backend_native_layer_avgpool.c
@@ -91,7 +91,7 @@ int dnn_execute_layer_avg_pool(DnnOperand *operands, const int32_t *input_operan
         output_height = ceil(height / (kernel_strides * 1.0));
         output_width = ceil(width / (kernel_strides * 1.0));
     } else {
-        assert(avgpool_params->padding_method = VALID);
+        av_assert0(avgpool_params->padding_method == VALID);
         height_end = height - avgpool_params->kernel_size + 1;
         width_end = width - avgpool_params->kernel_size + 1;
         height_radius = 0;