all models: removed options 'src_scale_mod', and 'sort samples by yaw as target'

If you want, you can manually remove unnecessary angles from src faceset after sort by yaw.

Optimized sample generators (CPU workers). Now they consume less amount of RAM and work faster.

added
4.2.other) data_src/dst util faceset pack.bat
	Packs /aligned/ samples into one /aligned/samples.pak file.
	After that, all faces will be deleted.

4.2.other) data_src/dst util faceset unpack.bat
	unpacks faces from /aligned/samples.pak to /aligned/ dir.
	After that, samples.pak will be deleted.

Packed faceset load and work faster.

samplelib/PackedFaceset.py

@@ -0,0 +1,107 @@
+import pickle
+import struct
+from pathlib import Path
+
+from interact import interact as io
+from utils import Path_utils
+
+
+import samplelib.SampleHost
+
+packed_faceset_filename = 'samples.pak'
+
+class PackedFaceset():
+    VERSION = 1
+
+    @staticmethod
+    def pack(samples_path):
+        samples_dat_path = samples_path / packed_faceset_filename
+        
+        if samples_dat_path.exists():
+            io.log_info(f"{samples_dat_path} : file already exists !")
+            io.input_bool("Press enter to continue and overwrite.", False)
+            
+        of = open(samples_dat_path, "wb")
+
+        image_paths = Path_utils.get_image_paths(samples_path)
+
+        
+        samples = samplelib.SampleHost.load_face_samples(image_paths)
+        
+        for sample in samples:
+            sample.filename = str(Path(sample.filename).relative_to(samples_path))
+        samples_len = len(samples)
+
+        samples_bytes = pickle.dumps(samples, 4)
+
+        of.write ( struct.pack ("Q", PackedFaceset.VERSION ) )
+        of.write ( struct.pack ("Q", len(samples_bytes) ) )
+        of.write ( samples_bytes )
+
+        sample_data_table_offset = of.tell()
+        of.write ( bytes( 8*(samples_len+1) ) ) #sample data offset table
+
+        data_start_offset = of.tell()
+        offsets = []
+
+        for sample in io.progress_bar_generator(samples, "Packing"):
+            try:
+                with open( samples_path / sample.filename, "rb") as f:
+                    b = f.read()
+
+                offsets.append ( of.tell() - data_start_offset )
+                of.write(b)
+            except:
+                raise Exception(f"error while processing sample {sample.filename}")
+
+        offsets.append ( of.tell() )
+
+        of.seek(sample_data_table_offset, 0)
+        for offset in offsets:
+            of.write ( struct.pack("Q", offset) )
+        of.seek(0,2)
+        of.close()
+
+        for filename in io.progress_bar_generator(image_paths,"Deleting"):
+            Path(filename).unlink()
+
+
+    @staticmethod
+    def unpack(samples_path):
+        samples_dat_path = samples_path / packed_faceset_filename
+        if not samples_dat_path.exists():
+            io.log_info(f"{samples_dat_path} : file not found.")
+            return
+            
+        samples = PackedFaceset.load(samples_path)
+
+        for sample in io.progress_bar_generator(samples, "Unpacking"):
+            with open(samples_path / sample.filename, "wb") as f:
+                f.write( sample.read_raw_file() )
+
+        samples_dat_path.unlink()
+
+    @staticmethod
+    def load(samples_path):
+        samples_dat_path = samples_path / packed_faceset_filename
+        if not samples_dat_path.exists():
+            return None
+
+        f = open(samples_dat_path, "rb")
+        version, = struct.unpack("Q", f.read(8) )
+        if version != PackedFaceset.VERSION:
+            raise NotImplementedError
+
+        sizeof_samples_bytes, = struct.unpack("Q", f.read(8) )
+        samples = pickle.loads ( f.read(sizeof_samples_bytes) )
+        offsets = [ struct.unpack("Q", f.read(8) )[0] for _ in range(len(samples)+1) ]
+        data_start_offset = f.tell()
+        f.close()
+
+        for i, sample in enumerate(samples):
+            start_offset, end_offset = offsets[i], offsets[i+1]
+            sample.set_filename_offset_size( str(samples_dat_path), data_start_offset+start_offset, end_offset-start_offset )
+
+        return samples
+
+