Update transcode_bench.py

transcode_bench.py

@@ -382,8 +382,8 @@ class TranscodeJob:
 
             # Configure encoding parameters based on encoder type
             if 'vaapi' in self.hevc_encoder:
-                # VA-API: use CQP mode
-                encode_params.extend(['-qp', '23'])
+                # VA-API: use CQP mode with Main profile (4:2:0)
+                encode_params.extend(['-profile:v', 'main', '-qp', '23'])
             elif self.hevc_encoder == 'libx265':
                 # Software HEVC: use CRF mode
                 encode_params.extend(['-preset', 'medium', '-crf', '23'])
@@ -517,11 +517,22 @@ class Benchmark:
             cmd2.extend([
                 '-f', 'rawvideo', '-pix_fmt', 'nv12', '-s:v', '1920x1080', '-i', yuv_file,
                 '-vf', 'scale=1280x720,format=nv12,hwupload' if 'vaapi' in hw_hevc_encoder else 'scale=1280x720',
-                '-frames:v', '1', '-c:v', hw_hevc_encoder, '-qp', '23',
-                '-f', 'null', '-'
+                '-frames:v', '1', '-c:v', hw_hevc_encoder,
             ])
+
+            # Add profile and quality settings for VA-API HEVC
+            if 'vaapi' in hw_hevc_encoder:
+                cmd2.extend(['-profile:v', 'main', '-qp', '23'])
+            else:
+                cmd2.extend(['-qp', '23'])
+
+            cmd2.extend(['-f', 'null', '-'])
             result = subprocess.run(cmd2, capture_output=True, timeout=5)
 
+            # Debug output if it fails
+            if result.returncode != 0:
+                print(f"  Hardware HEVC test failed: {result.stderr.decode()[:200]}")
+
             os.unlink(yuv_file)
 
             if result.returncode == 0: