avfilter/dnn_backend_tf: check TF_OperationOutputType return value

This also fixed a warning: implicit conversion from enumeration
type 'TF_DataType' (aka 'enum TF_DataType') to different
enumeration type 'DNNDataType'.

Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>

1 files changed, 13 insertions, 1 deletions

diff --git a/libavfilter/dnn/dnn_backend_tf.c b/libavfilter/dnn/dnn_backend_tf.c
index 74fe06d6fb..552a9f2fa1 100644
--- a/libavfilter/dnn/dnn_backend_tf.c
+++ b/libavfilter/dnn/dnn_backend_tf.c
@@ -274,6 +274,7 @@ static int get_input_tf(void *model, DNNData *input, const char *input_name)
     TFModel *tf_model = model;
     TFContext *ctx = &tf_model->ctx;
     TF_Status *status;
+    TF_DataType dt;
     int64_t dims[4];
 
     TF_Output tf_output;
@@ -284,7 +285,18 @@ static int get_input_tf(void *model, DNNData *input, const char *input_name)
     }
 
     tf_output.index = 0;
-    input->dt = TF_OperationOutputType(tf_output);
+    dt = TF_OperationOutputType(tf_output);
+    switch (dt) {
+    case TF_FLOAT:
+        input->dt = DNN_FLOAT;
+        break;
+    case TF_UINT8:
+        input->dt = DNN_UINT8;
+        break;
+    default:
+        av_log(ctx, AV_LOG_ERROR, "Unsupported output type %d in model\n", dt);
+        return AVERROR(EINVAL);
+    }
     input->order = DCO_RGB;
 
     status = TF_NewStatus();