Extract more metadata using exifTool

meshroom/nodes/aliceVision/ExtractMetadata.py

@@ -0,0 +1,133 @@
+__version__ = "0.1"
+
+from meshroom.core import desc
+from meshroom.core.utils import VERBOSE_LEVEL
+from pathlib import Path
+
+import pyalicevision as av
+
+import distutils.dir_util as du
+import shutil
+import glob
+import os
+import subprocess
+
+
+class ExtractMetadata(desc.Node):
+    size = desc.DynamicNodeSize("input")
+
+    category = 'Utils'
+    documentation = '''
+Using exifTool, this node extracts metadata of all images referenced in a sfmData and store them in appropriate files.
+'''
+
+    inputs = [
+        desc.File(
+            name="input",
+            label="Input",
+            description="SfMData file input.",
+            value="",
+        ),
+        desc.BoolParam(
+            name="keepFilename",
+            label="Keep Filename",
+            description="Keep the filename of the inputs for the outputs.",
+            value=False,
+        ),
+        desc.ChoiceParam(
+            name="extension",
+            label="Output File Extension",
+            description="Metadata file extension.",
+            value="txt",
+            values=["txt", "xml", "xmp"],
+            exclusive=True,
+        ),
+        desc.StringParam(
+            name="arguments",
+            label="Arguments",
+            description="ExifTool command arguments",
+            value="",
+        ),
+        desc.BoolParam(
+            name="insertInSfm",
+            label="Update sfmData",
+            description="Insert the extracted metadata in the sfmData file.",
+            value=False,
+        ),
+        desc.ChoiceParam(
+            name="verboseLevel",
+            label="Verbose Level",
+            description="Verbosity level (fatal, error, warning, info, debug, trace).",
+            values=VERBOSE_LEVEL,
+            value="info",
+        ),
+    ]
+
+    outputs = [
+        desc.File(
+            name="output",
+            label="Result Folder",
+            description="Output path for the resulting metadata files.",
+            value=desc.Node.internalFolder,
+        ),
+    ]
+
+    def processChunk(self, chunk):
+        try:
+            chunk.logManager.start(chunk.node.verboseLevel.value)
+
+            if chunk.node.input.value == "" or chunk.node.input.value[-4:].lower() != '.sfm':
+                error = 'This node need to have a sfmData connected as input.'
+                chunk.logger.error(error)
+                raise RuntimeError(error)
+
+            if not os.path.exists(chunk.node.output.value):
+                os.mkdir(chunk.node.output.value)
+
+            dataAV = av.sfmData.SfMData()
+            if av.sfmDataIO.load(dataAV, chunk.node.input.value, av.sfmDataIO.ALL):
+                views = dataAV.getViews()
+                for id, v in views.items():
+                    inputFile = v.getImage().getImagePath()
+                    chunk.logger.info(f"Processing {inputFile}")
+
+                    if chunk.node.keepFilename.value:
+                        outputMetadataFilename = os.path.join(chunk.node.output.value, Path(inputFile).stem + "." + chunk.node.extension.value)
+                    else:
+                        outputMetadataFilename = os.path.join(chunk.node.output.value, str(id) + "." + chunk.node.extension.value)
+
+                    if chunk.node.extension.value == 'txt':
+                        cmd = 'exiftool ' + chunk.node.arguments.value.strip() + ' ' + inputFile + ' > ' + outputMetadataFilename
+                    elif chunk.node.extension.value == 'xml':
+                        cmd = 'exiftool -X ' + chunk.node.arguments.value.strip() + ' ' + inputFile + ' > ' + outputMetadataFilename
+                    else: #xmp
+                        cmd = 'exiftool -tagsfromfile ' + inputFile + ' ' + chunk.node.arguments.value.strip() + ' ' + outputMetadataFilename
+
+                    chunk.logger.debug(cmd)
+                    error = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE).stderr.read().decode()
+
+                    chunk.logger.debug(error)
+
+                    if error != "":
+                        chunk.logger.error(error)
+                        raise RuntimeError(error)
+                    if not os.path.exists(outputMetadataFilename):
+                        info = 'No metadata extracted for file ' + inputFile
+                        chunk.logger.info(info)
+                    elif chunk.node.insertInSfm.value:
+                        cmd = 'exiftool ' + chunk.node.arguments.value.strip() + ' ' + inputFile
+                        metadata = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE).stdout.read().decode()
+                        chunk.logger.debug(metadata)
+                        lmeta = metadata.split('\n')
+                        for i in range(1, len(lmeta)-1):
+                            l = lmeta[i].split(':', 1)
+                            v.getImageInfo().addMetadata('ExifTool:'+l[0].strip(), l[1].strip())
+
+                if chunk.node.insertInSfm.value:
+                    outputSfm = os.path.join(chunk.node.output.value, Path(chunk.node.input.value).stem + ".sfm")
+                    av.sfmDataIO.save(dataAV, outputSfm, av.sfmDataIO.ALL)
+
+                chunk.logger.info('Metadata extraction end')
+
+        finally:
+            chunk.logManager.end()