#if CONFIG_CUDA
&ff_hwcontext_type_cuda,
#endif
+#if CONFIG_DXVA2
+ &ff_hwcontext_type_dxva2,
+#endif
#if CONFIG_VAAPI
&ff_hwcontext_type_vaapi,
#endif
}
av_freep(constraints);
}
+
+int av_hwdevice_ctx_create(AVBufferRef **pdevice_ref, enum AVHWDeviceType type,
+ const char *device, AVDictionary *opts, int flags)
+{
+ AVBufferRef *device_ref = NULL;
+ AVHWDeviceContext *device_ctx;
+ int ret = 0;
+
+ device_ref = av_hwdevice_ctx_alloc(type);
+ if (!device_ref) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+ device_ctx = (AVHWDeviceContext*)device_ref->data;
+
+ if (!device_ctx->internal->hw_type->device_create) {
+ ret = AVERROR(ENOSYS);
+ goto fail;
+ }
+
+ ret = device_ctx->internal->hw_type->device_create(device_ctx, device,
+ opts, flags);
+ if (ret < 0)
+ goto fail;
+
+ ret = av_hwdevice_ctx_init(device_ref);
+ if (ret < 0)
+ goto fail;
+
+ *pdevice_ref = device_ref;
+ return 0;
+fail:
+ av_buffer_unref(&device_ref);
+ *pdevice_ref = NULL;
+ return ret;
+}