}
#if CONFIG_H264_DXVA2_HWACCEL
-AVHWAccel ff_h264_dxva2_hwaccel = {
+const AVHWAccel ff_h264_dxva2_hwaccel = {
.name = "h264_dxva2",
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_H264,
#endif
#if CONFIG_H264_D3D11VA_HWACCEL
-AVHWAccel ff_h264_d3d11va_hwaccel = {
+const AVHWAccel ff_h264_d3d11va_hwaccel = {
.name = "h264_d3d11va",
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_H264,
#endif
#if CONFIG_H264_D3D11VA2_HWACCEL
-AVHWAccel ff_h264_d3d11va2_hwaccel = {
+const AVHWAccel ff_h264_d3d11va2_hwaccel = {
.name = "h264_d3d11va2",
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_H264,