fix skopeo copy can't entrypt to docker-daemon image

Signed-off-by: ningmingxiao <ning.mingxiao@zte.com.cn>

internal/image/oci.go

@@ -8,6 +8,7 @@ import (
 
 	"github.com/containers/image/v5/docker/reference"
 	"github.com/containers/image/v5/internal/iolimits"
+	ociencspec "github.com/containers/ocicrypt/spec"
 	internalManifest "github.com/containers/image/v5/internal/manifest"
 	"github.com/containers/image/v5/manifest"
 	"github.com/containers/image/v5/pkg/blobinfocache/none"
@@ -217,13 +218,13 @@ func (m *manifestOCI1) convertToManifestSchema2(_ context.Context, _ *types.Mani
 		switch layers[idx].MediaType {
 		case imgspecv1.MediaTypeImageLayerNonDistributable:
 			layers[idx].MediaType = manifest.DockerV2Schema2ForeignLayerMediaType
-		case imgspecv1.MediaTypeImageLayerNonDistributableGzip:
+		case imgspecv1.MediaTypeImageLayerNonDistributableGzip,ociencspec.MediaTypeLayerNonDistributableGzipEnc :
 			layers[idx].MediaType = manifest.DockerV2Schema2ForeignLayerMediaTypeGzip
 		case imgspecv1.MediaTypeImageLayerNonDistributableZstd:
 			return nil, fmt.Errorf("Error during manifest conversion: %q: zstd compression is not supported for docker images", layers[idx].MediaType)
-		case imgspecv1.MediaTypeImageLayer:
+		case imgspecv1.MediaTypeImageLayer,ociencspec.MediaTypeLayerEnc:
 			layers[idx].MediaType = manifest.DockerV2SchemaLayerMediaTypeUncompressed
-		case imgspecv1.MediaTypeImageLayerGzip:
+		case imgspecv1.MediaTypeImageLayerGzip,ociencspec.MediaTypeLayerGzipEnc:
 			layers[idx].MediaType = manifest.DockerV2Schema2LayerMediaType
 		case imgspecv1.MediaTypeImageLayerZstd:
 			return nil, fmt.Errorf("Error during manifest conversion: %q: zstd compression is not supported for docker images", layers[idx].MediaType)