rework descriptors raw

nightl
2024-10-06 09:58:37 +02:00 · 2024-10-05 22:41:57 +02:00 · 2024-10-04 23:45:25 +02:00 · 2024-10-03 23:22:32 +02:00
27 changed files with 1421 additions and 603 deletions
--- a/bin/ffx.py
+++ b/bin/ffx.py
@@ -4,6 +4,12 @@ import os, sys, subprocess, json, click, time, re

 from ffx.ffx_app import FfxApp

+from ffx.database import databaseContext
+
+from ffx.media_descriptor import MediaDescriptor
+from ffx.file_properties import FileProperties
+
+
 VERSION='0.1.0'

 DEFAULT_VIDEO_ENCODER = 'vp9'
@@ -41,11 +47,6 @@ STREAM_TYPE_VIDEO = 'video'
 STREAM_TYPE_AUDIO = 'audio'
 STREAM_TYPE_SUBTITLE = 'subtitle'

-STREAM_LAYOUT_6_1 = '6.1'
-STREAM_LAYOUT_5_1 = '5.1(side)'
-STREAM_LAYOUT_STEREO = 'stereo'
-STREAM_LAYOUT_6CH = '6ch'
-
 SEASON_EPISODE_INDICATOR_MATCH = '[sS]([0-9]+)[eE]([0-9]+)'
 EPISODE_INDICATOR_MATCH = '[eE]([0-9]+)'
 SEASON_EPISODE_STREAM_LANGUAGE_MATCH = '[sS]([0-9]+)[eE]([0-9]+)_([0-9]+)_([a-z]{3})'
@@ -53,119 +54,6 @@ SEASON_EPISODE_STREAM_LANGUAGE_MATCH = '[sS]([0-9]+)[eE]([0-9]+)_([0-9]+)_([a-z]
 SUBTITLE_FILE_EXTENSION = 'vtt'


-def executeProcess(commandSequence):
-
-    process = subprocess.Popen(commandSequence, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-
-    output, error = process.communicate()
-    
-    return output.decode('utf-8'), error.decode('utf-8'), process.returncode
-
-
-
-#[{'index': 0, 'codec_name': 'vp9', 'codec_long_name': 'Google VP9', 'profile': 'Profile 0', 'codec_type': 'video', 'codec_tag_string': '[0][0][0][0]', 'codec_tag': '0x0000', 'width': 1920, 'height': 1080, 'coded_width': 1920, 'coded_height': 1080, 'closed_captions': 0, 'film_grain': 0, 'has_b_frames': 0, 'sample_aspect_ratio': '1:1', 'display_aspect_ratio': '16:9', 'pix_fmt': 'yuv420p', 'level': -99, 'color_range': 'tv', 'chroma_location': 'left', 'field_order': 'progressive', 'refs': 1, 'r_frame_rate': '24000/1001', 'avg_frame_rate': '24000/1001', 'time_base': '1/1000', 'start_pts': 0, 'start_time': '0.000000', 'disposition': {'default': 1, 'dub': 0, 'original': 0, 'comment': 0, 'lyrics': 0, 'karaoke': 0, 'forced': 0, 'hearing_impaired': 0, 'visual_impaired': 0, 'clean_effects': 0, 'attached_pic': 0, 'timed_thumbnails': 0, 'non_diegetic': 0, 'captions': 0, 'descriptions': 0, 'metadata': 0, 'dependent': 0, 'still_image': 0}, 'tags': {'BPS': '7974017', 'NUMBER_OF_FRAMES': '34382', 'NUMBER_OF_BYTES': '1429358655', '_STATISTICS_WRITING_APP': "mkvmerge v63.0.0 ('Everything') 64-bit", '_STATISTICS_WRITING_DATE_UTC': '2023-10-07 13:59:46', '_STATISTICS_TAGS': 'BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES', 'ENCODER': 'Lavc61.3.100 libvpx-vp9', 'DURATION': '00:23:54.016000000'}}]
-#[{'index': 1, 'codec_name': 'opus', 'codec_long_name': 'Opus (Opus Interactive Audio Codec)', 'codec_type': 'audio', 'codec_tag_string': '[0][0][0][0]', 'codec_tag': '0x0000', 'sample_fmt': 'fltp', 'sample_rate': '48000', 'channels': 2, 'channel_layout': 'stereo', 'bits_per_sample': 0, 'initial_padding': 312, 'r_frame_rate': '0/0', 'avg_frame_rate': '0/0', 'time_base': '1/1000', 'start_pts': -7, 'start_time': '-0.007000', 'extradata_size': 19, 'disposition': {'default': 1, 'dub': 0, 'original': 0, 'comment': 0, 'lyrics': 0, 'karaoke': 0, 'forced': 0, 'hearing_impaired': 0, 'visual_impaired': 0, 'clean_effects': 0, 'attached_pic': 0, 'timed_thumbnails': 0, 'non_diegetic': 0, 'captions': 0, 'descriptions': 0, 'metadata': 0, 'dependent': 0, 'still_image': 0}, 'tags': {'language': 'jpn', 'title': 'Japanisch', 'BPS': '128000', 'NUMBER_OF_FRAMES': '61763', 'NUMBER_OF_BYTES': '22946145', '_STATISTICS_WRITING_APP': "mkvmerge v63.0.0 ('Everything') 64-bit", '_STATISTICS_WRITING_DATE_UTC': '2023-10-07 13:59:46', '_STATISTICS_TAGS': 'BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES', 'ENCODER': 'Lavc61.3.100 libopus', 'DURATION': '00:23:54.141000000'}}]
-
-#[{'index': 2, 'codec_name': 'webvtt', 'codec_long_name': 'WebVTT subtitle', 'codec_type': 'subtitle', 'codec_tag_string': '[0][0][0][0]', 'codec_tag': '0x0000', 'r_frame_rate': '0/0', 'avg_frame_rate': '0/0', 'time_base': '1/1000', 'start_pts': -7, 'start_time': '-0.007000', 'duration_ts': 1434141, 'duration': '1434.141000', 'disposition': {'default': 1, 'dub': 0, 'original': 0, 'comment': 0, 'lyrics': 0, 'karaoke': 0, 'forced': 0, 'hearing_impaired': 0, 'visual_impaired': 0, 'clean_effects': 0, 'attached_pic': 0, 'timed_thumbnails': 0, 'non_diegetic': 0, 'captions': 0, 'descriptions': 0, 'metadata': 0, 'dependent': 0, 'still_image': 0}, 'tags': {'language': 'ger', 'title': 'Deutsch [Full]', 'BPS': '118', 'NUMBER_OF_FRAMES': '300', 'NUMBER_OF_BYTES': '21128', '_STATISTICS_WRITING_APP': "mkvmerge v63.0.0 ('Everything') 64-bit", '_STATISTICS_WRITING_DATE_UTC': '2023-10-07 13:59:46', '_STATISTICS_TAGS': 'BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES', 'ENCODER': 'Lavc61.3.100 webvtt', 'DURATION': '00:23:54.010000000'}}, {'index': 3, 'codec_name': 'webvtt', 'codec_long_name': 'WebVTT subtitle', 'codec_type': 'subtitle', 'codec_tag_string': '[0][0][0][0]', 'codec_tag': '0x0000', 'r_frame_rate': '0/0', 'avg_frame_rate': '0/0', 'time_base': '1/1000', 'start_pts': -7, 'start_time': '-0.007000', 'duration_ts': 1434141, 'duration': '1434.141000', 'disposition': {'default': 0, 'dub': 0, 'original': 0, 'comment': 0, 'lyrics': 0, 'karaoke': 0, 'forced': 0, 'hearing_impaired': 0, 'visual_impaired': 0, 'clean_effects': 0, 'attached_pic': 0, 'timed_thumbnails': 0, 'non_diegetic': 0, 'captions': 0, 'descriptions': 0, 'metadata': 0, 'dependent': 0, 'still_image': 0}, 'tags': {'language': 'eng', 'title': 'Englisch [Full]', 'BPS': '101', 'NUMBER_OF_FRAMES': '276', 'NUMBER_OF_BYTES': '16980', '_STATISTICS_WRITING_APP': "mkvmerge v63.0.0 ('Everything') 64-bit", '_STATISTICS_WRITING_DATE_UTC': '2023-10-07 13:59:46', '_STATISTICS_TAGS': 'BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES', 'ENCODER': 'Lavc61.3.100 webvtt', 'DURATION': '00:23:53.230000000'}}]
-
-
-def getStreamData(filepath):
-    """Returns ffprobe stream data as array with elements according to the following example      
-    {
-        "index": 4,
-        "codec_name": "hdmv_pgs_subtitle",
-        "codec_long_name": "HDMV Presentation Graphic Stream subtitles",
-        "codec_type": "subtitle",
-        "codec_tag_string": "[0][0][0][0]",
-        "codec_tag": "0x0000",
-        "r_frame_rate": "0/0",
-        "avg_frame_rate": "0/0",
-        "time_base": "1/1000",
-        "start_pts": 0,
-        "start_time": "0.000000",
-        "duration_ts": 1421035,
-        "duration": "1421.035000",
-        "disposition": {
-            "default": 1,
-            "dub": 0,
-            "original": 0,
-            "comment": 0,
-            "lyrics": 0,
-            "karaoke": 0,
-            "forced": 0,
-            "hearing_impaired": 0,
-            "visual_impaired": 0,
-            "clean_effects": 0,
-            "attached_pic": 0,
-            "timed_thumbnails": 0,
-            "non_diegetic": 0,
-            "captions": 0,
-            "descriptions": 0,
-            "metadata": 0,
-            "dependent": 0,
-            "still_image": 0
-        },
-        "tags": {
-            "language": "ger",
-            "title": "German Full"
-        }
-    }
-    """
-
-    ffprobeOutput, ffprobeError, returnCode = executeProcess(["ffprobe",
-                                                    "-show_streams",
-                                                    "-of", "json",
-                                                    filepath])
-
-    if 'Invalid data found when processing input' in ffprobeError:
-        raise Exception(f"File {filepath} does not contain valid stream data")
-    
-    if returnCode != 0:
-        raise Exception(f"ffprobe returned with error {returnCode}")
-
-    return json.loads(ffprobeOutput)['streams']
-
-
-
-def getStreamDescriptor(filename):
-
-    streamData = getStreamData(filename)
-
-    descriptor = {}
-    descriptor['video'] = []
-    descriptor['audio'] = []
-    descriptor['subtitle'] = []
-
-    for subStream in streamData:
-
-        if subStream['codec_type'] in ['video', 'audio', 'subtitle']:
-
-            if not 'disposition' in subStream.keys():
-                subStream['disposition'] = {}
-            if not 'default' in subStream['disposition'].keys():
-                subStream['disposition']['default'] = 0
-            if not 'forced' in subStream['disposition'].keys():
-                subStream['disposition']['forced'] = 0
-            if not 'tags' in subStream.keys():
-                subStream['tags'] = {}
-            if not 'language' in subStream['tags'].keys():
-                subStream['tags']['language'] = 'undefined'
-            if not 'title' in subStream['tags'].keys():
-                subStream['tags']['title'] = 'undefined'
-
-            if subStream['codec_type'] == STREAM_TYPE_AUDIO:
-                if 'channel_layout' in subStream.keys():
-                    subStream['audio_layout'] = subStream['channel_layout']
-                elif subStream['channels'] == 6:
-                    subStream['audio_layout'] = STREAM_LAYOUT_6CH
-                else:
-                    subStream['audio_layout'] = 'undefined'
-
-            descriptor[subStream['codec_type']].append(subStream)
-            descriptor[subStream['codec_type']][-1]['sub_index'] = len(descriptor[subStream['codec_type']]) - 1
-
-    return descriptor
-

 def getModifiedStreamOrder(length, last):
    """This is jellyfin specific as the last stream in the order is set as default"""
@@ -232,38 +120,39 @@ def generateOutputTokens(filepath, format, ext):

 def generateAudioEncodingTokens(context, index, layout):
    """Generates ffmpeg options for one output audio stream including channel remapping, codec and bitrate"""
-
-    if layout == STREAM_LAYOUT_6_1:
-        return [f"-c:a:{index}",
-                        'libopus',
-                        f"-filter:a:{index}",
-                        'channelmap=channel_layout=6.1',
-                        f"-b:a:{index}",
-                            context['bitrates']['dts']]
-
-    elif layout == STREAM_LAYOUT_5_1:
-        return [f"-c:a:{index}",
-                        'libopus',
-                        f"-filter:a:{index}",
-                        "channelmap=FL-FL|FR-FR|FC-FC|LFE-LFE|SL-BL|SR-BR:5.1",
-                        f"-b:a:{index}",
-                        context['bitrates']['ac3']]
-
-    elif layout == STREAM_LAYOUT_STEREO:
-        return [f"-c:a:{index}",
-                        'libopus',
-                        f"-b:a:{index}",
-                        context['bitrates']['stereo']]
-
-    elif layout == STREAM_LAYOUT_6CH:
-        return [f"-c:a:{index}",
-                        'libopus',
-                        f"-filter:a:{index}",
-                        "channelmap=FL-FL|FR-FR|FC-FC|LFE-LFE|SL-BL|SR-BR:5.1",
-                        f"-b:a:{index}",
-                        context['bitrates']['ac3']]
-    else:
-        return []
+    pass
+# 
+#     if layout == STREAM_LAYOUT_6_1:
+#         return [f"-c:a:{index}",
+#                         'libopus',
+#                         f"-filter:a:{index}",
+#                         'channelmap=channel_layout=6.1',
+#                         f"-b:a:{index}",
+#                             context['bitrates']['dts']]
+# 
+#     elif layout == STREAM_LAYOUT_5_1:
+#         return [f"-c:a:{index}",
+#                         'libopus',
+#                         f"-filter:a:{index}",
+#                         "channelmap=FL-FL|FR-FR|FC-FC|LFE-LFE|SL-BL|SR-BR:5.1",
+#                         f"-b:a:{index}",
+#                         context['bitrates']['ac3']]
+# 
+#     elif layout == STREAM_LAYOUT_STEREO:
+#         return [f"-c:a:{index}",
+#                         'libopus',
+#                         f"-b:a:{index}",
+#                         context['bitrates']['stereo']]
+# 
+#     elif layout == STREAM_LAYOUT_6CH:
+#         return [f"-c:a:{index}",
+#                         'libopus',
+#                         f"-filter:a:{index}",
+#                         "channelmap=FL-FL|FR-FR|FC-FC|LFE-LFE|SL-BL|SR-BR:5.1",
+#                         f"-b:a:{index}",
+#                         context['bitrates']['ac3']]
+#     else:
+#         return []


 def generateClearTokens(streams):
@@ -334,8 +223,9 @@ def searchSubtitleFiles(dir, prefix):
@click.pass_context
 def ffx(ctx):
    """FFX"""
+
    ctx.obj = {}
-    pass        
+    ctx.obj['database'] = databaseContext()


 # Define a subcommand
@@ -351,61 +241,79 @@ def help():
    click.echo(f"Usage: ffx [input file] [output file] [vp9|av1] [q=[nn[,nn,...]]] [p=nn] [a=nnn[k]] [ac3=nnn[k]] [dts=nnn[k]] [crop]")


-@click.argument('filename', nargs=1)
-@ffx.command()
-def streams(filename):
-    
-    try:
-        sd = getStreamDescriptor(filename)
-    except Exception as ex:
-        raise click.ClickException(f"This file does not contain any audiovisual data: {ex}")
-    for d in sd:
-        click.echo(f"{d['codec_name']}{' (' + str(d['channels']) + ')' if d['codec_type'] == 'audio' else ''}")
-


@ffx.command()
@click.pass_context
+@click.argument('filename', nargs=1)
+def inspect(ctx, filename):

-@click.argument('paths', nargs=-1)
-@click.option('-l', '--label', type=str, default='', help='Label to be used as filename prefix')
+#     if 'database' not in ctx.obj.keys():
+#         ctx.obj['database'] = databaseContext()
+    
+    try:

-@click.option('-sd', '--subtitle-directory', type=str, default='', help='Load subtitles from here')
-@click.option('-sp', '--subtitle-prefix', type=str, default='', help='Subtitle filename prefix')
+        fp = FileProperties(ctx.obj, filename)
+        md = fp.getMediaDescriptor()

-@click.option("-o", "--output-directory", type=str, default='')
+        print(md.getTags())

-@click.option("--dry-run", is_flag=True, default=False)
+        for at in md.getAudioTracks():
+            print(f"Audio: {at.getLanguage()} {'|'.join([f"{k}={v}" for (k,v) in at.getTags().items()])}")
+
+        for st in md.getSubtitleTracks():
+            print(f"Subtitle: {st.getLanguage()} {'|'.join([[f"{k}={v}" for (k,v) in st.getTags().items()]])}")
+
+    except Exception as ex:
+        raise click.ClickException(f"This file does not contain any audiovisual data: {ex}")
+
+#     for d in sd:
+#         click.echo(f"{d['codec_name']}{' (' + str(d['channels']) + ')' if d['codec_type'] == 'audio' else ''}")


-def unmux(ctx,
-            label,
-            paths,
-            subtitle_directory,
-            subtitle_prefix,
-            output_directory,
-            dry_run):

-    existingSourcePaths = [p for p in paths if os.path.isfile(p)]
-    click.echo(f"\nUnmuxing {len(existingSourcePaths)} files")
-
-    for sourcePath in existingSourcePaths:
-
-        sd = getStreamDescriptor(sourcePath)
-
-        print(f"\nFile {sourcePath}\n")
-
-        for v in sd['video']:
-            
-            if v['codec_name'] == 'h264':
-
-                commandSequence = ['ffmpeg', '-i', sourcePath, '-map', '0:v:0', '-c', 'copy', '-f', 'h264']
-                executeProcess()
-
-        for a in sd['audio']:
-            print(f"A: {a}\n")
-        for s in sd['subtitle']:
-            print(f"S: {s}\n")
+# @ffx.command()
+# @click.pass_context
+# 
+# @click.argument('paths', nargs=-1)
+# @click.option('-l', '--label', type=str, default='', help='Label to be used as filename prefix')
+# 
+# @click.option('-sd', '--subtitle-directory', type=str, default='', help='Load subtitles from here')
+# @click.option('-sp', '--subtitle-prefix', type=str, default='', help='Subtitle filename prefix')
+# 
+# @click.option("-o", "--output-directory", type=str, default='')
+# 
+# @click.option("--dry-run", is_flag=True, default=False)
+# 
+# 
+# def unmux(ctx,
+#             label,
+#             paths,
+#             subtitle_directory,
+#             subtitle_prefix,
+#             output_directory,
+#             dry_run):
+# 
+#     existingSourcePaths = [p for p in paths if os.path.isfile(p)]
+#     click.echo(f"\nUnmuxing {len(existingSourcePaths)} files")
+# 
+#     for sourcePath in existingSourcePaths:
+# 
+#         sd = getStreamDescriptor(sourcePath)
+# 
+#         print(f"\nFile {sourcePath}\n")
+# 
+#         for v in sd['video']:
+#             
+#             if v['codec_name'] == 'h264':
+# 
+#                 commandSequence = ['ffmpeg', '-i', sourcePath, '-map', '0:v:0', '-c', 'copy', '-f', 'h264']
+#                 executeProcess()
+# 
+#         for a in sd['audio']:
+#             print(f"A: {a}\n")
+#         for s in sd['subtitle']:
+#             print(f"S: {s}\n")



@@ -415,6 +323,9 @@ def unmux(ctx,

 def shows(ctx):

+#     if 'database' not in ctx.obj.keys():
+#         ctx.obj['database'] = databaseContext()
+
    app = FfxApp(ctx.obj)
    app.run()

@@ -502,6 +413,10 @@ def convert(ctx,
    
    context = ctx.obj

+    if 'database' not in context.keys():
+        context['database'] = databaseContext()
+
+
    click.echo(f"\nVideo encoder: {video_encoder}")

    qualityTokens = quality.split(',')
--- a/bin/ffx/audio_layout.py
+++ b/bin/ffx/audio_layout.py
@@ -0,0 +1,46 @@
+from enum import Enum
+from .track_type import TrackType
+
+class AudioLayout(Enum):
+
+    LAYOUT_STEREO   = {"layout": "stereo", "index": 1}
+    LAYOUT_5_1      = {"layout": "5.1(side)", "index": 2}
+    LAYOUT_6_1      = {"layout": "6.1", "index": 3}
+    LAYOUT_7_1      = {"layout": "7.1", "index": 4} #TODO: Does this exist?
+
+    LAYOUT_6CH      = {"layout": "6ch", "index": 5}
+
+    LAYOUT_UNDEFINED  = {"layout": "undefined", "index": 0}
+
+
+    def layout(self):
+        """Returns the layout as string"""
+        return self.value['layout']
+
+    def index(self):
+        """Returns the layout as string"""
+        return self.value['layout']
+
+
+    def identify(self, streamObj):
+
+        FFPROBE_LAYOUT_KEY = 'channel_layout'
+        FFPROBE_CHANNELS_KEY = 'channels'
+        FFPROBE_CODEC_TYPE_KEY = 'codec_type'
+
+        if (type(streamObj) is not dict
+                or FFPROBE_CODEC_TYPE_KEY not in streamObj.keys()
+                or streamObj[FFPROBE_CODEC_TYPE_KEY] != TrackType.AUDIO.label()):
+            raise Exception('Not an ffprobe audio stream object')
+
+        if FFPROBE_LAYOUT_KEY in streamObj.keys():
+            matchingLayouts = [l for l in AudioLayout if l.value['layout'] == streamObj[FFPROBE_LAYOUT_KEY]]
+            if matchingLayouts:
+                return matchingLayouts[0]
+
+        if (FFPROBE_CHANNELS_KEY in streamObj.keys()
+                and int(streamObj[FFPROBE_CHANNELS_KEY]) == 6):
+
+            return AudioLayout.LAYOUT_6CH
+  
+        return AudioLayout.LAYOUT_UNDEFINED
--- a/bin/ffx/database.py
+++ b/bin/ffx/database.py
@@ -0,0 +1,41 @@
+import os
+
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+
+from ffx.model.show import Base, Show
+from ffx.model.pattern import Pattern
+from ffx.model.track import Track
+
+from ffx.model.media_tag import MediaTag
+from ffx.model.track_tag import TrackTag
+
+
+def databaseContext():
+
+    databaseContext = {}
+
+    # Initialize DB
+    homeDir = os.path.expanduser("~")
+    ffxVarDir = os.path.join(homeDir, '.local', 'var', 'ffx')
+    if not os.path.exists(ffxVarDir):
+        os.makedirs(ffxVarDir)
+
+    databaseContext['url'] = f"sqlite:///{os.path.join(ffxVarDir, 'ffx.db')}"
+    databaseContext['engine'] = create_engine(databaseContext['url'])
+    databaseContext['session'] = sessionmaker(bind=databaseContext['engine'])
+
+    Base.metadata.create_all(databaseContext['engine'])
+
+    # isSyncronuous = False
+    # while not isSyncronuous:
+    # while True:
+    #     try:
+    #         with databaseContext['database_engine'].connect() as connection:
+    #             connection.execute(sqlalchemy.text('PRAGMA foreign_keys=ON;'))
+    #             #isSyncronuous = True
+    #             break
+    #     except sqlite3.OperationalError:
+    #         time.sleep(0.1)
+
+    return databaseContext
--- a/bin/ffx/ffx_app.py
+++ b/bin/ffx/ffx_app.py
@@ -6,9 +6,12 @@ from textual.widgets import Header, Footer, Placeholder, Label

 from sqlalchemy import create_engine
 from sqlalchemy.orm import sessionmaker
-from ffx.model.show import Base, Show
-from ffx.model.pattern import Pattern
-from ffx.model.track import Track
+# from ffx.model.show import Base, Show
+# from ffx.model.pattern import Pattern
+# from ffx.model.track import Track
+
+# from ffx.model.media_tag import MediaTag
+# from ffx.model.track_tag import TrackTag

 from .shows_screen import ShowsScreen
 from .warning_screen import WarningScreen
@@ -32,29 +35,6 @@ class FfxApp(App):
        # Data 'input' variable
        self.context = context

-        # Initialize DB
-        homeDir = os.path.expanduser("~")
-        ffxVarDir = os.path.join(homeDir, '.local', 'var', 'ffx')
-        if not os.path.exists(ffxVarDir):
-            os.makedirs(ffxVarDir)
-
-        self.context['database_url'] = f"sqlite:///{os.path.join(ffxVarDir, 'ffx.db')}"
-        self.context['database_engine'] = create_engine(self.context['database_url'])
-        self.context['database_session'] = sessionmaker(bind=self.context['database_engine'])
-
-        Base.metadata.create_all(self.context['database_engine'])
-
-        # isSyncronuous = False
-        # while not isSyncronuous:
-        # while True:
-        #     try:
-        #         with self.context['database_engine'].connect() as connection:
-        #             connection.execute(sqlalchemy.text('PRAGMA foreign_keys=ON;'))
-        #             #isSyncronuous = True
-        #             break
-        #     except sqlite3.OperationalError:
-        #         time.sleep(0.1)
-

    def on_mount(self) -> None:
        self.push_screen(ShowsScreen())
--- a/bin/ffx/file_properties.py
+++ b/bin/ffx/file_properties.py
@@ -1,4 +1,15 @@
-import os, re, click
+import os, re, click, json
+
+from .media_descriptor import MediaDescriptor
+from .pattern_controller import PatternController
+
+#from .track_type import TrackType
+#from .audio_layout import AudioLayout
+
+#from .track_disposition import TrackDisposition
+
+from .process import executeProcess
+

 class FileProperties():

@@ -7,15 +18,18 @@ class FileProperties():
    SEASON_EPISODE_INDICATOR_MATCH = '[sS]([0-9]+)[eE]([0-9]+)' 
    EPISODE_INDICATOR_MATCH = '[eE]([0-9]+)'

-    def ___init__(self, sourcePath, ):

+    def __init__(self, context, sourcePath):

        # Separate basedir, basename and extension for current source file
-        self.__sourceDirectory = os.path.dirname(sourcePath)
-        self.__sourceFilename = os.path.basename(sourcePath)
+        self.__sourcePath = sourcePath
+
+        self.__sourceDirectory = os.path.dirname(self.__sourcePath)
+        self.__sourceFilename = os.path.basename(self.__sourcePath)
+
        sourcePathTokens = self.__sourceFilename.split('.')

-        if sourcePathTokens[-1] in FilenameController.FILE_EXTENSIONS:
+        if sourcePathTokens[-1] in FileProperties.FILE_EXTENSIONS:
            self.__sourceFileBasename = '.'.join(sourcePathTokens[:-1])
            self.__sourceFilenameExtension = sourcePathTokens[-1]
        else:
@@ -23,8 +37,8 @@ class FileProperties():
            self.__sourceFilenameExtension = ''


-        se_match = re.compile(FilenameController.SEASON_EPISODE_INDICATOR_MATCH)
-        e_match = re.compile(FilenameController.EPISODE_INDICATOR_MATCH)
+        se_match = re.compile(FileProperties.SEASON_EPISODE_INDICATOR_MATCH)
+        e_match = re.compile(FileProperties.EPISODE_INDICATOR_MATCH)

        se_result = se_match.search(self.__sourceFilename)
        e_result = e_match.search(self.__sourceFilename)
@@ -42,25 +56,165 @@ class FileProperties():
            file_index += 1


+        pc = PatternController(context)
+        pattern = pc.matchFilename(self.__sourceFilename)

-        matchingFileSubtitleDescriptors = sorted([d for d in availableFileSubtitleDescriptors if d['season'] == season and d['episode'] == episode], key=lambda d: d['stream'])  if availableFileSubtitleDescriptors else []
-
-        print(f"season={season} episode={episode} file={file_index}")
+        click.echo(pattern)
+#         matchingFileSubtitleDescriptors = sorted([d for d in availableFileSubtitleDescriptors if d['season'] == season and d['episode'] == episode], key=lambda d: d['stream'])  if availableFileSubtitleDescriptors else []
+# 
+#         print(f"season={season} episode={episode} file={file_index}")
+# 
+# 
+#         # Assemble target filename tokens
+#         targetFilenameTokens = []
+#         targetFilenameExtension = DEFAULT_FILE_EXTENSION
+# 
+#         if label:
+#             targetFilenameTokens = [label]
+# 
+#             if season > -1 and episode > -1:
+#                 targetFilenameTokens += [f"S{season:0{season_digits}d}E{episode:0{episode_digits}d}"]
+#             elif episode > -1:
+#                 targetFilenameTokens += [f"E{episode:0{episode_digits}d}"]
+#             else:
+#                 targetFilenameTokens += [f"{file_index:0{index_digits}d}"]
+# 
+#         else:
+#             targetFilenameTokens = [sourceFileBasename]
+# 


-        # Assemble target filename tokens
-        targetFilenameTokens = []
-        targetFilenameExtension = DEFAULT_FILE_EXTENSION
+    def getFormatData(self):
+        """
+        "format": {
+            "filename": "Downloads/nagatoro_s02/nagatoro_s01e02.mkv",
+            "nb_streams": 18,
+            "nb_programs": 0,
+            "nb_stream_groups": 0,
+            "format_name": "matroska,webm",
+            "format_long_name": "Matroska / WebM",
+            "start_time": "0.000000",
+            "duration": "1420.063000",
+            "size": "1489169824",
+            "bit_rate": "8389316",
+            "probe_score": 100,
+            "tags": {
+                "PUBLISHER": "Crunchyroll",
+                "ENCODER": "Lavf58.29.100"
+            }
+        }       
+        """

-        if label:
-            targetFilenameTokens = [label]
+        ffprobeOutput, ffprobeError, returnCode = executeProcess(["ffprobe",
+                                                        "-hide_banner",
+                                                        "-show_format",
+                                                        "-of", "json",
+                                                        self.__sourcePath])

-            if season > -1 and episode > -1:
-                targetFilenameTokens += [f"S{season:0{season_digits}d}E{episode:0{episode_digits}d}"]
-            elif episode > -1:
-                targetFilenameTokens += [f"E{episode:0{episode_digits}d}"]
-            else:
-                targetFilenameTokens += [f"{file_index:0{index_digits}d}"]

-        else:
-            targetFilenameTokens = [sourceFileBasename]
+        if 'Invalid data found when processing input' in ffprobeError:
+            raise Exception(f"File {self.__sourcePath} does not contain valid stream data")
+
+
+        if returnCode != 0:
+            raise Exception(f"ffprobe returned with error {returnCode}")
+
+
+        return json.loads(ffprobeOutput)['format']
+
+    #[{'index': 0, 'codec_name': 'vp9', 'codec_long_name': 'Google VP9', 'profile': 'Profile 0', 'codec_type': 'video', 'codec_tag_string': '[0][0][0][0]', 'codec_tag': '0x0000', 'width': 1920, 'height': 1080, 'coded_width': 1920, 'coded_height': 1080, 'closed_captions': 0, 'film_grain': 0, 'has_b_frames': 0, 'sample_aspect_ratio': '1:1', 'display_aspect_ratio': '16:9', 'pix_fmt': 'yuv420p', 'level': -99, 'color_range': 'tv', 'chroma_location': 'left', 'field_order': 'progressive', 'refs': 1, 'r_frame_rate': '24000/1001', 'avg_frame_rate': '24000/1001', 'time_base': '1/1000', 'start_pts': 0, 'start_time': '0.000000', 'disposition': {'default': 1, 'dub': 0, 'original': 0, 'comment': 0, 'lyrics': 0, 'karaoke': 0, 'forced': 0, 'hearing_impaired': 0, 'visual_impaired': 0, 'clean_effects': 0, 'attached_pic': 0, 'timed_thumbnails': 0, 'non_diegetic': 0, 'captions': 0, 'descriptions': 0, 'metadata': 0, 'dependent': 0, 'still_image': 0}, 'tags': {'BPS': '7974017', 'NUMBER_OF_FRAMES': '34382', 'NUMBER_OF_BYTES': '1429358655', '_STATISTICS_WRITING_APP': "mkvmerge v63.0.0 ('Everything') 64-bit", '_STATISTICS_WRITING_DATE_UTC': '2023-10-07 13:59:46', '_STATISTICS_TAGS': 'BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES', 'ENCODER': 'Lavc61.3.100 libvpx-vp9', 'DURATION': '00:23:54.016000000'}}]
+    #[{'index': 1, 'codec_name': 'opus', 'codec_long_name': 'Opus (Opus Interactive Audio Codec)', 'codec_type': 'audio', 'codec_tag_string': '[0][0][0][0]', 'codec_tag': '0x0000', 'sample_fmt': 'fltp', 'sample_rate': '48000', 'channels': 2, 'channel_layout': 'stereo', 'bits_per_sample': 0, 'initial_padding': 312, 'r_frame_rate': '0/0', 'avg_frame_rate': '0/0', 'time_base': '1/1000', 'start_pts': -7, 'start_time': '-0.007000', 'extradata_size': 19, 'disposition': {'default': 1, 'dub': 0, 'original': 0, 'comment': 0, 'lyrics': 0, 'karaoke': 0, 'forced': 0, 'hearing_impaired': 0, 'visual_impaired': 0, 'clean_effects': 0, 'attached_pic': 0, 'timed_thumbnails': 0, 'non_diegetic': 0, 'captions': 0, 'descriptions': 0, 'metadata': 0, 'dependent': 0, 'still_image': 0}, 'tags': {'language': 'jpn', 'title': 'Japanisch', 'BPS': '128000', 'NUMBER_OF_FRAMES': '61763', 'NUMBER_OF_BYTES': '22946145', '_STATISTICS_WRITING_APP': "mkvmerge v63.0.0 ('Everything') 64-bit", '_STATISTICS_WRITING_DATE_UTC': '2023-10-07 13:59:46', '_STATISTICS_TAGS': 'BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES', 'ENCODER': 'Lavc61.3.100 libopus', 'DURATION': '00:23:54.141000000'}}]
+
+    #[{'index': 2, 'codec_name': 'webvtt', 'codec_long_name': 'WebVTT subtitle', 'codec_type': 'subtitle', 'codec_tag_string': '[0][0][0][0]', 'codec_tag': '0x0000', 'r_frame_rate': '0/0', 'avg_frame_rate': '0/0', 'time_base': '1/1000', 'start_pts': -7, 'start_time': '-0.007000', 'duration_ts': 1434141, 'duration': '1434.141000', 'disposition': {'default': 1, 'dub': 0, 'original': 0, 'comment': 0, 'lyrics': 0, 'karaoke': 0, 'forced': 0, 'hearing_impaired': 0, 'visual_impaired': 0, 'clean_effects': 0, 'attached_pic': 0, 'timed_thumbnails': 0, 'non_diegetic': 0, 'captions': 0, 'descriptions': 0, 'metadata': 0, 'dependent': 0, 'still_image': 0}, 'tags': {'language': 'ger', 'title': 'Deutsch [Full]', 'BPS': '118', 'NUMBER_OF_FRAMES': '300', 'NUMBER_OF_BYTES': '21128', '_STATISTICS_WRITING_APP': "mkvmerge v63.0.0 ('Everything') 64-bit", '_STATISTICS_WRITING_DATE_UTC': '2023-10-07 13:59:46', '_STATISTICS_TAGS': 'BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES', 'ENCODER': 'Lavc61.3.100 webvtt', 'DURATION': '00:23:54.010000000'}}, {'index': 3, 'codec_name': 'webvtt', 'codec_long_name': 'WebVTT subtitle', 'codec_type': 'subtitle', 'codec_tag_string': '[0][0][0][0]', 'codec_tag': '0x0000', 'r_frame_rate': '0/0', 'avg_frame_rate': '0/0', 'time_base': '1/1000', 'start_pts': -7, 'start_time': '-0.007000', 'duration_ts': 1434141, 'duration': '1434.141000', 'disposition': {'default': 0, 'dub': 0, 'original': 0, 'comment': 0, 'lyrics': 0, 'karaoke': 0, 'forced': 0, 'hearing_impaired': 0, 'visual_impaired': 0, 'clean_effects': 0, 'attached_pic': 0, 'timed_thumbnails': 0, 'non_diegetic': 0, 'captions': 0, 'descriptions': 0, 'metadata': 0, 'dependent': 0, 'still_image': 0}, 'tags': {'language': 'eng', 'title': 'Englisch [Full]', 'BPS': '101', 'NUMBER_OF_FRAMES': '276', 'NUMBER_OF_BYTES': '16980', '_STATISTICS_WRITING_APP': "mkvmerge v63.0.0 ('Everything') 64-bit", '_STATISTICS_WRITING_DATE_UTC': '2023-10-07 13:59:46', '_STATISTICS_TAGS': 'BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES', 'ENCODER': 'Lavc61.3.100 webvtt', 'DURATION': '00:23:53.230000000'}}]
+
+
+    def getStreamData(self):
+        """Returns ffprobe stream data as array with elements according to the following example      
+        {
+            "index": 4,
+            "codec_name": "hdmv_pgs_subtitle",
+            "codec_long_name": "HDMV Presentation Graphic Stream subtitles",
+            "codec_type": "subtitle",
+            "codec_tag_string": "[0][0][0][0]",
+            "codec_tag": "0x0000",
+            "r_frame_rate": "0/0",
+            "avg_frame_rate": "0/0",
+            "time_base": "1/1000",
+            "start_pts": 0,
+            "start_time": "0.000000",
+            "duration_ts": 1421035,
+            "duration": "1421.035000",
+            "disposition": {
+                "default": 1,
+                "dub": 0,
+                "original": 0,
+                "comment": 0,
+                "lyrics": 0,
+                "karaoke": 0,
+                "forced": 0,
+                "hearing_impaired": 0,
+                "visual_impaired": 0,
+                "clean_effects": 0,
+                "attached_pic": 0,
+                "timed_thumbnails": 0,
+                "non_diegetic": 0,
+                "captions": 0,
+                "descriptions": 0,
+                "metadata": 0,
+                "dependent": 0,
+                "still_image": 0
+            },
+            "tags": {
+                "language": "ger",
+                "title": "German Full"
+            }
+        }
+        """
+
+
+        ffprobeOutput, ffprobeError, returnCode = executeProcess(["ffprobe",
+                                                        "-hide_banner",
+                                                        "-show_streams",
+                                                        "-of", "json",
+                                                        self.__sourcePath])
+
+        if 'Invalid data found when processing input' in ffprobeError:
+            raise Exception(f"File {self.__sourcePath} does not contain valid stream data")
+
+
+        if returnCode != 0:
+            raise Exception(f"ffprobe returned with error {returnCode}")
+
+
+        return json.loads(ffprobeOutput)['streams']
+
+
+#     def getTrackDescriptor(self, streamObj):
+#         """Convert the stream describing json object into a track descriptor"""
+# 
+#         trackType = streamObj['codec_type']
+# 
+#         descriptor = {}
+# 
+#         if trackType in [t.label() for t in TrackType]:
+# 
+#             descriptor['type'] = trackType
+# 
+#             descriptor = {}
+#             descriptor['disposition_list'] = [t for d in (k for (k,v) in streamObj['disposition'].items() if v) if (t := TrackDisposition.find(d)) if t is not None]
+# 
+#             descriptor['tags'] = streamObj['tags'] if 'tags' in streamObj.keys() else {}
+# 
+#             if trackType == TrackType.AUDIO.label():
+#                 descriptor['layout'] = AudioLayout.identify(streamObj)
+# 
+#         return descriptor
+
+
+    def getMediaDescriptor(self):
+
+        return MediaDescriptor.fromFfprobe(self.getFormatData(), self.getStreamData())
+
+        # formatData = self.getFormatData()
+        # streamData = self.getStreamData()
+
--- a/bin/ffx/iso_language.py
+++ b/bin/ffx/iso_language.py
@@ -73,6 +73,8 @@ class IsoLanguage(Enum):
    VIETNAMESE      = {"name": "Vietnamese", "iso639_1": "vi", "iso639_2": "vie"}
    WELSH           = {"name": "Welsh", "iso639_1": "cy", "iso639_2": "wel"}

+    UNDEFINED       = {"name": "undefined", "iso639_1": "xx", "iso639_2": "und"}
+

    @staticmethod
    def find(label : str):
@@ -81,14 +83,14 @@ class IsoLanguage(Enum):

        if closestMatches:
            foundLangs = [l for l in IsoLanguage if l.value['name'] == closestMatches[0]]
-            return foundLangs[0] if foundLangs else None
+            return foundLangs[0] if foundLangs else IsoLanguage.UNDEFINED
        else:
-            return None
+            return IsoLanguage.UNDEFINED

    @staticmethod
    def findThreeLetter(theeLetter : str):
        foundLangs = [l for l in IsoLanguage if l.value['iso639_2'] == str(theeLetter)]
-        return foundLangs[0] if foundLangs else None
+        return foundLangs[0] if foundLangs else IsoLanguage.UNDEFINED


 # def get(lang : str):
--- a/bin/ffx/media_descriptor.py
+++ b/bin/ffx/media_descriptor.py
@@ -1,2 +1,43 @@
+from ffx.track_type import TrackType
+from ffx.track_descriptor import TrackDescriptor
+
+
 class MediaDescriptor():
-    pass
+    """This class represents the structural content of a media file including streams and metadata"""
+    
+    def __init__(self, **kwargs):
+
+        self.__mediaTags = kwargs['tags'] if 'tags' in kwargs.keys() else {}
+        self.__trackDescriptors = kwargs['trackDescriptors'] if 'trackDescriptors' in kwargs.keys() else {}
+        self.__clearTags = kwargs['clearTags'] if 'clearTags' in kwargs.keys() else False
+
+
+    @classmethod
+    def fromFfprobe(cls, formatData, streamData):
+
+        descriptors = {}
+
+        for streamObj in streamData:
+
+            trackType = TrackType.fromLabel(streamObj['codec_type'])
+
+            if trackType != TrackType.UNKNOWN:
+
+                if trackType.label() not in descriptors.keys():
+                    descriptors[trackType.label()] = []
+
+                descriptors[trackType.label()].append(TrackDescriptor.fromFfprobe(streamObj))
+
+        return cls(tags=formatData['tags'] if 'tags' in formatData.keys() else {},
+                    trackDescriptors = descriptors)
+
+
+    def getTags(self):
+        return self.__mediaTags
+
+
+    def getAudioTracks(self):
+        return self.__trackDescriptors[TrackType.AUDIO.label()] if TrackType.AUDIO.label() in self.__trackDescriptors.keys() else []
+
+    def getSubtitleTracks(self):
+        return self.__trackDescriptors[TrackType.SUBTITLE.label()] if TrackType.SUBTITLE.label() in self.__trackDescriptors.keys() else []
--- a/bin/ffx/model/media_tag.py
+++ b/bin/ffx/model/media_tag.py
@@ -0,0 +1,28 @@
+# from typing import List
+from sqlalchemy import create_engine, Column, Integer, String, ForeignKey, Enum
+from sqlalchemy.orm import relationship, declarative_base, sessionmaker
+
+from .show import Base
+
+
+class MediaTag(Base):
+    """
+    relationship(argument, opt1, opt2, ...)
+    argument is string of class or Mapped class of the target entity
+    backref creates a bi-directional corresponding relationship (back_populates preferred)
+    back_populates points to the corresponding relationship (the actual class attribute identifier)
+    
+    See: https://docs.sqlalchemy.org/en/(14|20)/orm/basic_relationships.html
+    """
+
+    __tablename__ = 'media_tags'
+
+    # v1.x
+    id = Column(Integer, primary_key=True)
+
+    key = Column(String)
+    value = Column(String)
+
+    # v1.x
+    pattern_id = Column(Integer, ForeignKey('patterns.id', ondelete="CASCADE"))
+    pattern = relationship('Pattern', back_populates='media_tags')
--- a/bin/ffx/model/pattern.py
+++ b/bin/ffx/model/pattern.py
@@ -4,6 +4,7 @@ from sqlalchemy.orm import relationship, sessionmaker, Mapped, backref
 from .show import Base
 from .track import Track

+from ffx.media_descriptor import MediaDescriptor

 class Pattern(Base):

@@ -26,3 +27,50 @@ class Pattern(Base):
    # show: Mapped["Show"] = relationship(back_populates="patterns")

    tracks = relationship('Track', back_populates='pattern', cascade="all, delete")
+
+
+    media_tags = relationship('MediaTag', back_populates='pattern', cascade="all, delete")
+
+
+    # def getDescriptor(self):
+# 
+    #     descriptor = {}
+    #     descriptor['id'] = int(self.id)
+    #     descriptor['pattern'] = str(self.pattern)
+    #     descriptor['show_id'] = int(self.show_id)
+# 
+    #     descriptor['tags'] = {}
+    #     for t in self.media_tags:
+    #         descriptor['tags'][str(t.key)] = str(t.value)
+# 
+    #     return descriptor
+
+
+    def getShow(self):
+        pass
+
+    def getTracks(self):
+        pass
+
+
+    def getMediaDescriptor(self):
+
+        md = MediaDescriptor(tags = self.getDescriptor()['tags'])
+
+        for t in self.tracks:
+            md.appendTrack(t.getDescriptor())
+
+        return md
+
+
+    def getId(self):
+        return int(self.id)
+
+    def getPattern(self):
+        return str(self.pattern)
+    
+    def getShowId(self):
+        return int(self.show_id)
+    
+    def getTags(self):
+        return {str(k.value):str(v.value) for (k,v) in self.media_tags}
--- a/bin/ffx/model/show.py
+++ b/bin/ffx/model/show.py
@@ -39,3 +39,19 @@ class Show(Base):
    index_episode_digits = Column(Integer, default=2)
    indicator_season_digits = Column(Integer, default=2)
    indicator_episode_digits = Column(Integer, default=2)
+
+
+    def getDesciptor(self):
+
+        descriptor = {}
+            
+        descriptor['id'] = int(self.id)
+        descriptor['name'] = str(self.name)
+        descriptor['year'] = int(self.year)
+
+        descriptor['index_season_digits'] = int(self.index_season_digits)
+        descriptor['index_episode_digits'] = int(self.index_episode_digits)
+        descriptor['indicator_season_digits'] = int(self.indicator_season_digits)
+        descriptor['indicator_episode_digits'] = int(self.indicator_episode_digits)
+
+        return descriptor
--- a/bin/ffx/model/track.py
+++ b/bin/ffx/model/track.py
@@ -8,9 +8,10 @@ from ffx.track_type import TrackType

 from ffx.iso_language import IsoLanguage

-from ffx.model.tag import Tag
-
+from ffx.track_disposition import TrackDisposition
+from ffx.track_descriptor import TrackDescriptor

+import click

 class Track(Base):
    """
@@ -29,6 +30,8 @@ class Track(Base):

    # P=pattern_id+sub_index+track_type
    track_type = Column(Integer) # TrackType
+
+    index = Column(Integer)
    sub_index = Column(Integer)

    # v1.x
@@ -36,14 +39,135 @@ class Track(Base):
    pattern = relationship('Pattern', back_populates='tracks')


-    language = Column(String) # IsoLanguage threeLetter
-    title = Column(String)
+    # language = Column(String) # IsoLanguage threeLetter
+    # title = Column(String)

-    tags = relationship('Tag', back_populates='track', cascade="all, delete")
+
+    track_tags = relationship('TrackTag', back_populates='track', cascade="all, delete", lazy="joined")


    disposition_flags = Column(Integer)


-    def getDescriptor(self):
-        pass
+    def __init__(self, **kwargs):
+
+        trackType = kwargs.pop('track_type', None)
+        if trackType is not None:
+            self.track_type = int(trackType)
+
+        # language = kwargs.pop('language', None)
+        # if language is not None:
+        #     self.language = str(language.threeLetter())
+
+        dispositionSet = kwargs.pop(TrackDescriptor.DISPOSITION_SET_KEY, set())
+        self.disposition_flags = int(TrackDisposition.toFlags(dispositionSet))
+
+        super().__init__(**kwargs) 
+
+
+    @classmethod
+    def fromStreamObj(cls, streamObj, subIndex, patternId):
+        """{
+                'index': 4,
+                'codec_name': 'hdmv_pgs_subtitle',
+                'codec_long_name': 'HDMV Presentation Graphic Stream subtitles',
+                'codec_type': 'subtitle',
+                'codec_tag_string': '[0][0][0][0]',
+                'codec_tag': '0x0000',
+                'r_frame_rate': '0/0',
+                'avg_frame_rate': '0/0',
+                'time_base': '1/1000',
+                'start_pts': 0,
+                'start_time': '0.000000',
+                'duration_ts': 1421035,
+                'duration': '1421.035000',
+                'disposition': {
+                    'default': 1,
+                    'dub': 0,
+                    'original': 0,
+                    'comment': 0,
+                    'lyrics': 0,
+                    'karaoke': 0,
+                    'forced': 0,
+                    'hearing_impaired': 0,
+                    'visual_impaired': 0,
+                    'clean_effects': 0,
+                    'attached_pic': 0,
+                    'timed_thumbnails': 0,
+                    'non_diegetic': 0,
+                    'captions': 0,
+                    'descriptions': 0,
+                    'metadata': 0,
+                    'dependent': 0,
+                    'still_image': 0
+                },
+                'tags': {
+                    'language': 'ger',
+                    'title': 'German Full'
+                }
+        }
+        
+
+        # v1.x
+        id = Column(Integer, primary_key=True, autoincrement = True)
+
+        # P=pattern_id+sub_index+track_type
+        track_type = Column(Integer) # TrackType
+        sub_index = Column(Integer)
+
+        # v1.x
+        pattern_id = Column(Integer, ForeignKey('patterns.id', ondelete='CASCADE'))
+        pattern = relationship('Pattern', back_populates='tracks')
+
+
+        language = Column(String) # IsoLanguage threeLetter
+        title = Column(String)
+
+
+        track_tags = relationship('TrackTag', back_populates='track', cascade='all, delete')
+
+
+        disposition_flags = Column(Integer)
+
+    
+        """
+
+
+        trackType = streamObj['codec_type']
+
+        if trackType in [t.label() for t in TrackType]:
+
+            return cls(pattern_id = patternId,
+                        sub_index = int(subIndex),
+                        track_type = trackType,
+                        disposition_flags = sum([2**t.index() for (k,v) in streamObj['disposition'].items() if v and (t := TrackDisposition.find(k)) is not None]))
+
+        else:
+            return None
+
+
+    def getId(self):
+        return int(self.id)
+
+    def getPatternId(self):
+        return int(self.pattern_id)
+    
+    def getType(self):
+        return TrackType.fromIndex(self.track_type)
+    
+    def getSubIndex(self):
+        return int(self.sub_index)
+    
+    def getLanguage(self):
+        tags = {t.key:t.value for t in self.track_tags}
+        return IsoLanguage.findThreeLetter(tags['language']) if 'language' in tags.keys() else IsoLanguage.UNDEFINED
+    
+    def getTitle(self):
+        tags = {t.key:t.value for t in self.track_tags}
+        return tags['title'] if 'title' in tags.keys() else ''
+
+    def getDispositionSet(self):
+        return TrackDisposition.toSet(self.disposition_flags)
+    
+    def getTags(self):
+        return {str(t.key):str(t.value) for t in self.track_tags}
--- a/bin/ffx/model/track_tag.py
+++ b/bin/ffx/model/track_tag.py
@@ -4,10 +4,8 @@ from sqlalchemy.orm import relationship, declarative_base, sessionmaker

 from .show import Base

-from ffx.track_type import TrackType

-
-class Tag(Base):
+class TrackTag(Base):
    """
    relationship(argument, opt1, opt2, ...)
    argument is string of class or Mapped class of the target entity
@@ -17,7 +15,7 @@ class Tag(Base):
    See: https://docs.sqlalchemy.org/en/(14|20)/orm/basic_relationships.html
    """

-    __tablename__ = 'tags'
+    __tablename__ = 'track_tags'

    # v1.x
    id = Column(Integer, primary_key=True)
@@ -27,4 +25,4 @@ class Tag(Base):

    # v1.x
    track_id = Column(Integer, ForeignKey('tracks.id', ondelete="CASCADE"))
-    track = relationship('Track', back_populates='tags')
+    track = relationship('Track', back_populates='track_tags')
--- a/bin/ffx/pattern_controller.py
+++ b/bin/ffx/pattern_controller.py
@@ -2,13 +2,15 @@ import click, re

 from ffx.model.pattern import Pattern

+from .media_descriptor import MediaDescriptor
+

 class PatternController():
    
    def __init__(self, context):
        
        self.context = context
-        self.Session = self.context['database_session'] # convenience
+        self.Session = self.context['database']['session'] # convenience


    def addPattern(self, patternDescriptor):
@@ -77,26 +79,24 @@ class PatternController():
            s.close()


-    def getPatternDict(self, pattern):
-        patternDescriptor = {}
-        patternDescriptor['id'] = int(pattern.id)
-        patternDescriptor['pattern'] = str(pattern.pattern)
-        patternDescriptor['show_id'] = int(pattern.show_id)
-        return patternDescriptor
+    def getPattern(self, patternId : int):

-
-    def getPatternDescriptor(self, patternId):
+        if type(patternId) is not int:
+            raise ValueError(f"PatternController.getPattern(): Argument patternId is required to be of type int")

        try:
            s = self.Session()
            q = s.query(Pattern).filter(Pattern.id == int(patternId))

            if q.count():
-                pattern = q.first()
-                return self.getPatternDict(pattern)
+                # pattern = q.first()
+                #return self.getPatternDict(pattern)
+                return q.first()
+            else:
+                return None

        except Exception as ex:
-            raise click.ClickException(f"PatternController.getPatternDescriptor(): {repr(ex)}")
+            raise click.ClickException(f"PatternController.getPattern(): {repr(ex)}")
        finally:
            s.close()

@@ -125,39 +125,62 @@ class PatternController():

    def matchFilename(self, filename):

-        SEASON_PATTERN = '[sS]([0-9]+)'
-        EPISODE_PATTERN = '[eE]([0-9]+)'
+        #SEASON_PATTERN = '[sS]([0-9]+)'
+        #EPISODE_PATTERN = '[eE]([0-9]+)'

-        result = {}
+        #result = {}

        try:
            s = self.Session()
            q = s.query(Pattern)

-            for pattern in q.all():
+            matchedPatterns = [p for p in q.all() if re.search(p.pattern, filename)]

-                match = re.search(pattern.pattern, filename)
-                
-                if match:
+            if matchedPatterns:
+                return matchedPatterns[0]
+            else:
+                return None

-                    result['pattern_id'] = pattern.id
-                    result['show_id'] = pattern.show_id
-
-                    result['indicator'] = match.group(1)
-
-                    seasonMatch = re.search(SEASON_PATTERN, result['indicator'])
-                    if seasonMatch:
-                        result['season'] = int(seasonMatch.group(1))
-
-                    episodeMatch = re.search(EPISODE_PATTERN, result['indicator'])
-                    if episodeMatch:
-                        result['episode'] = int(episodeMatch.group(1))
+#             for pattern in q.all():
+# 
+#                 match = re.search(pattern.pattern, filename)
+#                 
+#                 if match:
+# 
+#                     result['pattern_id'] = pattern.id
+#                     result['show_id'] = pattern.show_id
+# 
+#                     result['indicator'] = match.group(1)
+# 
+#                     seasonMatch = re.search(SEASON_PATTERN, result['indicator'])
+#                     if seasonMatch:
+#                         result['season'] = int(seasonMatch.group(1))
+# 
+#                     episodeMatch = re.search(EPISODE_PATTERN, result['indicator'])
+#                     if episodeMatch:
+#                         result['episode'] = int(episodeMatch.group(1))


        except Exception as ex:
-            raise click.ClickException(f"PatternController.matchFilename(): {repr(ex)}")
+            raise click.ClickException(f"PatternController.findPattern(): {repr(ex)}")
        finally:
            s.close()

        return result
-    
+    
+
+    def getMediaDescriptor(self, patternId):
+
+        try:
+            s = self.Session()
+            q = s.query(Pattern).filter(Pattern.id == int(patternId))
+
+            if q.count():
+                pattern = q.first()
+                #return self.getPatternDict(pattern)
+                return pattern.getMediaDescriptor()
+
+        except Exception as ex:
+            raise click.ClickException(f"PatternController.getPatternDescriptor(): {repr(ex)}")
+        finally:
+            s.close()
--- a/bin/ffx/pattern_delete_screen.py
+++ b/bin/ffx/pattern_delete_screen.py
@@ -50,7 +50,7 @@ class PatternDeleteScreen(Screen):
        super().__init__()

        self.context = self.app.getContext()
-        self.Session = self.context['database_session'] # convenience
+        self.Session = self.context['database']['session'] # convenience

        self.__pc = PatternController(context = self.context)
        self.__sc = ShowController(context = self.context)
--- a/bin/ffx/pattern_details_screen.py
+++ b/bin/ffx/pattern_details_screen.py
@@ -19,6 +19,7 @@ from .track_delete_screen import TrackDeleteScreen
 from ffx.track_type import TrackType

 from ffx.track_disposition import TrackDisposition
+from ffx.track_descriptor import TrackDescriptor

 from textual.widgets._data_table import CellDoesNotExist

@@ -73,13 +74,13 @@ class PatternDetailsScreen(Screen):
        super().__init__()

        self.context = self.app.getContext()
-        self.Session = self.context['database_session'] # convenience
+        self.Session = self.context['database']['session'] # convenience

        self.__pc = PatternController(context = self.context)
        self.__sc = ShowController(context = self.context)
        self.__tc = TrackController(context = self.context)

-        self.pattern_obj = self.__pc.getPatternDescriptor(patternId) if patternId is not None else {}
+        self.__pattern = self.__pc.getPattern(patternId) if patternId is not None else None

        self.show_obj = self.__sc.getShowDesciptor(showId) if showId is not None else {}

@@ -98,7 +99,7 @@ class PatternDetailsScreen(Screen):
            return [{'id': int(p.id), 'pattern': p.pattern} for p in q.all()]

        except Exception as ex:
-            click.ClickException(f"loadPatterns(): {repr(ex)}")
+            raise click.ClickException(f"loadTracks(): {repr(ex)}")
        finally:
            s.close()

@@ -107,53 +108,53 @@ class PatternDetailsScreen(Screen):

        self.audioStreamsTable.clear()

-        trackIds = self.__tc.findAllTracks(self.pattern_obj['id'])
+        if self.__pattern is not None:

-        for audioTrackId in trackIds[TrackType.AUDIO.label()]:
+            audioTracks = self.__tc.findAudioTracks(self.__pattern.getId())

-            ad = self.__tc.getTrackDescriptor(audioTrackId)
-            dispoList = ad['disposition_list']
+            for at in audioTracks:

-            row = (ad['sub_index'],
-                    " ",
-                    ad['language'].label(),
-                    ad['title'],
-                    'Yes' if TrackDisposition.DEFAULT in dispoList else 'No',
-                    'Yes' if TrackDisposition.FORCED in dispoList else 'No')
+                dispoSet = at.getDispositionSet()

-            self.audioStreamsTable.add_row(*map(str, row))
+                row = (at.getSubIndex(),
+                        " ",
+                        at.getLanguage().label(),
+                        at.getTitle(),
+                        'Yes' if TrackDisposition.DEFAULT in dispoSet else 'No',
+                        'Yes' if TrackDisposition.FORCED in dispoSet else 'No')
+
+                self.audioStreamsTable.add_row(*map(str, row))

    def updateSubtitleTracks(self):

        self.subtitleStreamsTable.clear()

-        trackIds = self.__tc.findAllTracks(self.pattern_obj['id'])
+        if self.__pattern is not None:

-        for subtitleTrackId in trackIds[TrackType.SUBTITLE.label()]:
+            subtitleTracks = self.__tc.findSubtitleTracks(self.__pattern.getId())

-            sd = self.__tc.getTrackDescriptor(subtitleTrackId)
-            dispoList = sd['disposition_list']
+            for st in subtitleTracks:

-            row = (sd['sub_index'],
-                    " ",
-                    sd['language'].label(),
-                    sd['title'],
-                    'Yes' if TrackDisposition.DEFAULT in dispoList else 'No',
-                    'Yes' if TrackDisposition.FORCED in dispoList else 'No')
+                dispoSet = st.getDispositionSet()

-            self.subtitleStreamsTable.add_row(*map(str, row))
+                row = (st.getSubIndex(),
+                        " ",
+                        st.getLanguage().label(),
+                        st.getTitle(),
+                        'Yes' if TrackDisposition.DEFAULT in dispoSet else 'No',
+                        'Yes' if TrackDisposition.FORCED in dispoSet else 'No')
+
+                self.subtitleStreamsTable.add_row(*map(str, row))


    def on_mount(self):

-        if self.pattern_obj:
-            self.query_one("#pattern_input", Input).value = str(self.pattern_obj['pattern'])
-
        if self.show_obj:
            self.query_one("#showlabel", Static).update(f"{self.show_obj['id']} - {self.show_obj['name']} ({self.show_obj['year']})")

-        
-        if self.pattern_obj:
+        if self.__pattern is not None:
+
+            self.query_one("#pattern_input", Input).value = str(self.__pattern.getPattern())

            self.updateAudioTracks()
            self.updateSubtitleTracks()
@@ -192,7 +193,7 @@ class PatternDetailsScreen(Screen):
        with Grid():

            # 1
-            yield Static("Edit filename pattern" if self.pattern_obj else "New filename pattern", id="toplabel")
+            yield Static("Edit filename pattern" if self.__pattern is not None else "New filename pattern", id="toplabel")
            yield Input(type="text", id="pattern_input", classes="four")

            # 2
@@ -209,7 +210,7 @@ class PatternDetailsScreen(Screen):
            yield Static("Audio streams")
            yield Static(" ")

-            if self.pattern_obj:
+            if self.__pattern is not None:
                yield Button("Add", id="button_add_audio_stream")
                yield Button("Edit", id="button_edit_audio_stream")
                yield Button("Delete", id="button_delete_audio_stream")
@@ -227,7 +228,7 @@ class PatternDetailsScreen(Screen):
            yield Static("Subtitle streams")
            yield Static(" ")

-            if self.pattern_obj:
+            if self.__pattern is not None:
                yield Button("Add", id="button_add_subtitle_stream")
                yield Button("Edit", id="button_edit_subtitle_stream")
                yield Button("Delete", id="button_delete_subtitle_stream")
@@ -253,9 +254,9 @@ class PatternDetailsScreen(Screen):



-    def getSelectedAudioTrackId(self):
+    def getSelectedAudioTrackDescriptor(self):

-        if not self.pattern_obj:
+        if not self.__pattern:
            return None

        try:
@@ -269,7 +270,18 @@ class PatternDetailsScreen(Screen):

                subIndex = int(selected_track_data[0])

-                return self.__tc.findTrack(self.pattern_obj['id'], TrackType.AUDIO, subIndex)
+                audioTrack =  self.__tc.findTrack(self.__pattern.getId(), TrackType.AUDIO, subIndex)
+
+                kwargs = {}
+
+                kwargs[TrackDescriptor.PATTERN_ID_KEY] = self.__pattern.getId()
+                kwargs[TrackDescriptor.SUB_INDEX_KEY] = subIndex
+
+                kwargs[TrackDescriptor.TRACK_TYPE_KEY] = TrackType.AUDIO
+                kwargs[TrackDescriptor.DISPOSITION_SET_KEY] = audioTrack.getDispositionSet()
+                kwargs[TrackDescriptor.TAGS_KEY] = audioTrack.getTags()
+
+                return TrackDescriptor(**kwargs)

            else:
                return None
@@ -278,9 +290,9 @@ class PatternDetailsScreen(Screen):
            return None


-    def getSelectedSubtitleTrackId(self):
+    def getSelectedSubtitleTrackDescriptor(self):

-        if not self.pattern_obj:
+        if not self.__pattern is None:
            return None

        try:
@@ -294,7 +306,18 @@ class PatternDetailsScreen(Screen):

                subIndex = int(selected_track_data[0])

-                return self.__tc.findTrack(self.pattern_obj['id'], TrackType.SUBTITLE, subIndex)
+                subtitleTrack = self.__tc.findTrack(self.__pattern.getId(), TrackType.SUBTITLE, subIndex)
+
+                kwargs = {}
+
+                kwargs[TrackDescriptor.PATTERN_ID_KEY] = self.__pattern.getId()
+                kwargs[TrackDescriptor.SUB_INDEX_KEY] = subIndex
+
+                kwargs[TrackDescriptor.TRACK_TYPE_KEY] = TrackType.SUBTITLE
+                kwargs[TrackDescriptor.DISPOSITION_SET_KEY] = subtitleTrack.getDispositionSet()
+                kwargs[TrackDescriptor.TAGS_KEY] = subtitleTrack.getTags()
+
+                return TrackDescriptor(**kwargs)

            else:
                return None
@@ -313,9 +336,9 @@ class PatternDetailsScreen(Screen):
            patternDescriptor['show_id'] = self.show_obj['id']
            patternDescriptor['pattern'] = self.getPatternFromInput()

-            if self.pattern_obj:
+            if self.__pattern is not None:

-                if self.__pc.updatePattern(self.pattern_obj['id'], patternDescriptor):
+                if self.__pc.updatePattern(self.__pattern.getId(), patternDescriptor):
                    self.dismiss(patternDescriptor)
                else:
                    #TODO: Meldung
@@ -335,29 +358,28 @@ class PatternDetailsScreen(Screen):


        # Save pattern when just created before adding streams
-        if self.pattern_obj:
-
-            #self.pattern_obj
+        if self.__pattern is not None:

            if event.button.id == "button_add_audio_stream":
-                self.app.push_screen(TrackDetailsScreen(trackType = TrackType.AUDIO, patternId = self.pattern_obj['id'], subIndex = len(self.audioStreamsTable.rows)), self.handle_add_track)
+                self.app.push_screen(TrackDetailsScreen(trackType = TrackType.AUDIO, patternId = self.__pattern.getId(), subIndex = len(self.audioStreamsTable.rows)), self.handle_add_track)

-            selectedAudioTrackId = self.getSelectedAudioTrackId()
-            if selectedAudioTrackId is not None:
+            selectedAudioTrack = self.getSelectedAudioTrackDescriptor()
+            if selectedAudioTrack is not None:
                if event.button.id == "button_edit_audio_stream":
-                    self.app.push_screen(TrackDetailsScreen(trackId = selectedAudioTrackId), self.handle_edit_track)
+
+                    self.app.push_screen(TrackDetailsScreen(trackDescriptor = selectedAudioTrack), self.handle_edit_track)
                if event.button.id == "button_delete_audio_stream":
-                    self.app.push_screen(TrackDeleteScreen(trackId = selectedAudioTrackId), self.handle_delete_track)
+                    self.app.push_screen(TrackDeleteScreen(trackDescriptor = selectedAudioTrack), self.handle_delete_track)
            
            if event.button.id == "button_add_subtitle_stream":
-                self.app.push_screen(TrackDetailsScreen(trackType = TrackType.SUBTITLE, patternId = self.pattern_obj['id'], subIndex = len(self.subtitleStreamsTable.rows)), self.handle_add_track)
+                self.app.push_screen(TrackDetailsScreen(trackType = TrackType.SUBTITLE, patternId = self.__pattern.getId(), subIndex = len(self.subtitleStreamsTable.rows)), self.handle_add_track)

-            selectedSubtitleTrackId = self.getSelectedSubtitleTrackId()
-            if selectedSubtitleTrackId is not None:
+            selectedSubtitleTrack = self.getSelectedSubtitleTrackDescriptor()
+            if selectedSubtitleTrack is not None:
                if event.button.id == "button_edit_subtitle_stream":
-                    self.app.push_screen(TrackDetailsScreen(trackId = selectedSubtitleTrackId), self.handle_edit_track)            
+                    self.app.push_screen(TrackDetailsScreen(trackDescriptor = selectedSubtitleTrack), self.handle_edit_track)            
                if event.button.id == "button_delete_subtitle_stream":
-                    self.app.push_screen(TrackDeleteScreen(trackId = selectedSubtitleTrackId), self.handle_delete_track)
+                    self.app.push_screen(TrackDeleteScreen(trackDescriptor = selectedSubtitleTrack), self.handle_delete_track)

        if event.button.id == "patternbutton":

@@ -373,63 +395,67 @@ class PatternDetailsScreen(Screen):

    def handle_add_track(self, trackDescriptor):

-        dispoList = trackDescriptor['disposition_list']
-        
-        if trackDescriptor['type'] == TrackType.AUDIO:
+        dispoSet = trackDescriptor.getDispositionSet()
+        trackType = trackDescriptor.getType()
+        subIndex = trackDescriptor.getSubIndex()
+        language = trackDescriptor.getLanguage()
+        title = trackDescriptor.getTitle()

-            row = (trackDescriptor['sub_index'],
+        if trackType == TrackType.AUDIO:
+
+            row = (subIndex,
                    " ",
-                    trackDescriptor['language'].label(),
-                    trackDescriptor['title'],
-                    'Yes' if TrackDisposition.DEFAULT in dispoList else 'No',
-                    'Yes' if TrackDisposition.FORCED in dispoList else 'No')
+                    language.label(),
+                    title,
+                    'Yes' if TrackDisposition.DEFAULT in dispoSet else 'No',
+                    'Yes' if TrackDisposition.FORCED in dispoSet else 'No')

            self.audioStreamsTable.add_row(*map(str, row))

-        if trackDescriptor['type'] == TrackType.SUBTITLE:
+        if trackType == TrackType.SUBTITLE:

-            row = (trackDescriptor['sub_index'],
+            row = (subIndex,
                    " ",
-                    trackDescriptor['language'].label(),
-                    trackDescriptor['title'],
-                    'Yes' if TrackDisposition.DEFAULT in dispoList else 'No',
-                    'Yes' if TrackDisposition.FORCED in dispoList else 'No')
+                    language.label(),
+                    title,
+                    'Yes' if TrackDisposition.DEFAULT in dispoSet else 'No',
+                    'Yes' if TrackDisposition.FORCED in dispoSet else 'No')

            self.subtitleStreamsTable.add_row(*map(str, row))


-    def handle_edit_track(self, trackDescriptor):
+    def handle_edit_track(self, trackDescriptor : TrackDescriptor):

-        try:        
-            if trackDescriptor['type'] == TrackType.AUDIO:
+        try:
+            if trackDescriptor.getType() == TrackType.AUDIO:

                row_key, col_key = self.audioStreamsTable.coordinate_to_cell_key(self.audioStreamsTable.cursor_coordinate)

-                self.audioStreamsTable.update_cell(row_key, self.column_key_audio_language, trackDescriptor['language'].label())
-                self.audioStreamsTable.update_cell(row_key, self.column_key_audio_title, trackDescriptor['title'])
-                self.audioStreamsTable.update_cell(row_key, self.column_key_audio_default, 'Yes' if TrackDisposition.DEFAULT in trackDescriptor['disposition_list'] else 'No')
-                self.audioStreamsTable.update_cell(row_key, self.column_key_audio_forced, 'Yes' if TrackDisposition.FORCED in trackDescriptor['disposition_list'] else 'No')
+                self.audioStreamsTable.update_cell(row_key, self.column_key_audio_language, trackDescriptor.getLanguage().label())
+                self.audioStreamsTable.update_cell(row_key, self.column_key_audio_title, trackDescriptor.getTitle())
+                self.audioStreamsTable.update_cell(row_key, self.column_key_audio_default, 'Yes' if TrackDisposition.DEFAULT in trackDescriptor.getDispositionSet() else 'No')
+                self.audioStreamsTable.update_cell(row_key, self.column_key_audio_forced, 'Yes' if TrackDisposition.FORCED in trackDescriptor.getDispositionSet() else 'No')

-            if trackDescriptor['type'] == TrackType.SUBTITLE:
+            if trackDescriptor.getType() == TrackType.SUBTITLE:

                row_key, col_key = self.subtitleStreamsTable.coordinate_to_cell_key(self.subtitleStreamsTable.cursor_coordinate)

-                self.subtitleStreamsTable.update_cell(row_key, self.column_key_subtitle_language, trackDescriptor['language'].label())
-                self.subtitleStreamsTable.update_cell(row_key, self.column_key_subtitle_title, trackDescriptor['title'])
-                self.subtitleStreamsTable.update_cell(row_key, self.column_key_subtitle_default, 'Yes' if TrackDisposition.DEFAULT in trackDescriptor['disposition_list'] else 'No')
-                self.subtitleStreamsTable.update_cell(row_key, self.column_key_subtitle_forced, 'Yes' if TrackDisposition.FORCED in trackDescriptor['disposition_list'] else 'No')
+                self.subtitleStreamsTable.update_cell(row_key, self.column_key_subtitle_language, trackDescriptor.getLanguage().label())
+                self.subtitleStreamsTable.update_cell(row_key, self.column_key_subtitle_title, trackDescriptor.getTitle())
+                self.subtitleStreamsTable.update_cell(row_key, self.column_key_subtitle_default, 'Yes' if TrackDisposition.DEFAULT in trackDescriptor.getDispositionSet() else 'No')
+                self.subtitleStreamsTable.update_cell(row_key, self.column_key_subtitle_forced, 'Yes' if TrackDisposition.FORCED in trackDescriptor.getDispositionSet() else 'No')

        except CellDoesNotExist:
            pass


-    def handle_delete_track(self, trackDescriptor):
+    def handle_delete_track(self, trackDescriptor : TrackDescriptor):

        try:
-            if trackDescriptor['type'] == TrackType.AUDIO:
+            if trackDescriptor.getType() == TrackType.AUDIO:
                self.updateAudioTracks()

-            if trackDescriptor['type'] == TrackType.SUBTITLE:
+            if trackDescriptor.getType() == TrackType.SUBTITLE:
                self.updateSubtitleTracks()

        except CellDoesNotExist:
--- a/bin/ffx/process.py
+++ b/bin/ffx/process.py
@@ -0,0 +1,16 @@
+import subprocess
+
+
+#class ProcessController():
+    
+    #def __init__(self, commandSequence):
+    #    self.__commandSequence = commandSequence
+
+def executeProcess(commandSequence):
+
+    process = subprocess.Popen(commandSequence, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+
+    output, error = process.communicate()
+    
+    return output.decode('utf-8'), error.decode('utf-8'), process.returncode
+
--- a/bin/ffx/show_controller.py
+++ b/bin/ffx/show_controller.py
@@ -8,7 +8,7 @@ class ShowController():
    def __init__(self, context):
        
        self.context = context
-        self.Session = self.context['database_session'] # convenience
+        self.Session = self.context['database']['session'] # convenience


    def getShowDesciptor(self, showId):
@@ -22,16 +22,19 @@ class ShowController():
            if q.count():
                show = q.first()
                
-                showDescriptor['id'] = int(show.id)
-                showDescriptor['name'] = str(show.name)
-                showDescriptor['year'] = int(show.year)
+#                 showDescriptor['id'] = int(show.id)
+#                 showDescriptor['name'] = str(show.name)
+#                 showDescriptor['year'] = int(show.year)
+# 
+#                 showDescriptor['index_season_digits'] = int(show.index_season_digits)
+#                 showDescriptor['index_episode_digits'] = int(show.index_episode_digits)
+#                 showDescriptor['indicator_season_digits'] = int(show.indicator_season_digits)
+#                 showDescriptor['indicator_episode_digits'] = int(show.indicator_episode_digits)
+# 
+#             return showDescriptor
+                
+                return show.getDesciptor()

-                showDescriptor['index_season_digits'] = int(show.index_season_digits)
-                showDescriptor['index_episode_digits'] = int(show.index_episode_digits)
-                showDescriptor['indicator_season_digits'] = int(show.indicator_season_digits)
-                showDescriptor['indicator_episode_digits'] = int(show.indicator_episode_digits)
-
-            return showDescriptor

        except Exception as ex:
            raise click.ClickException(f"ShowController.getShowDesciptor(): {repr(ex)}")
--- a/bin/ffx/show_delete_screen.py
+++ b/bin/ffx/show_delete_screen.py
@@ -48,7 +48,7 @@ class ShowDeleteScreen(Screen):
        super().__init__()

        self.context = self.app.getContext()
-        self.Session = self.context['database_session'] # convenience
+        self.Session = self.context['database']['session'] # convenience

        self.__sc = ShowController(context = self.context)
        self.show_obj = self.__sc.getShowDesciptor(showId) if showId is not None else {}
--- a/bin/ffx/show_details_screen.py
+++ b/bin/ffx/show_details_screen.py
@@ -76,7 +76,7 @@ class ShowDetailsScreen(Screen):
        super().__init__()

        self.context = self.app.getContext()
-        self.Session = self.context['database_session'] # convenience
+        self.Session = self.context['database']['session'] # convenience
        
        self.__sc = ShowController(context = self.context)
        self.__pc = PatternController(context = self.context)
--- a/bin/ffx/shows_screen.py
+++ b/bin/ffx/shows_screen.py
@@ -57,7 +57,7 @@ class ShowsScreen(Screen):

        self.context = self.app.getContext()

-        self.Session = self.context['database_session'] # convenience
+        self.Session = self.context['database']['session'] # convenience



--- a/bin/ffx/tag_controller.py
+++ b/bin/ffx/tag_controller.py
@@ -0,0 +1,193 @@
+import click
+
+from ffx.model.track import Track
+
+from .track_type import TrackType
+
+from .track_disposition import TrackDisposition
+from .iso_language import IsoLanguage
+
+from ffx.model.media_tag import MediaTag
+from ffx.model.track_tag import TrackTag
+
+
+class TagController():
+    
+    def __init__(self, context):
+        
+        self.context = context
+        self.Session = self.context['database']['session'] # convenience
+
+
+    def addMediaTag(self, trackDescriptor):
+
+        try:
+            s = self.Session()
+
+            track = Track(pattern_id = int(trackDescriptor['pattern_id']),
+
+                            track_type = int(trackDescriptor['type'].value),
+
+                            sub_index = int(trackDescriptor['sub_index']),
+
+                            # language = str(trackDescriptor['language'].threeLetter()),
+                            # title = str(trackDescriptor['title']),
+
+                            disposition_flags = int(TrackDisposition.toFlags(trackDescriptor['disposition_list'])))
+
+            s.add(track)
+            s.commit()
+
+        except Exception as ex:
+            raise click.ClickException(f"TrackController.addTrack(): {repr(ex)}")
+        finally:
+            s.close()
+
+    def addTrackTag(self, trackDescriptor):
+
+        try:
+            s = self.Session()
+
+            track = Track(pattern_id = int(trackDescriptor['pattern_id']),
+
+                            track_type = int(trackDescriptor['type'].value),
+
+                            sub_index = int(trackDescriptor['sub_index']),
+
+                            # language = str(trackDescriptor['language'].threeLetter()),
+                            # title = str(trackDescriptor['title']),
+
+                            disposition_flags = int(TrackDisposition.toFlags(trackDescriptor['disposition_list'])))
+
+            s.add(track)
+            s.commit()
+
+        except Exception as ex:
+            raise click.ClickException(f"TrackController.addTrack(): {repr(ex)}")
+        finally:
+            s.close()
+
+
+
+    def updateTrack(self, trackId, trackDescriptor):
+
+        try:
+            s = self.Session()
+            q = s.query(Track).filter(Track.id == int(trackId))
+
+            if q.count():
+
+                track = q.first()
+
+                track.sub_index = int(trackDescriptor['sub_index'])
+                # track.language = str(trackDescriptor['language'].threeLetter())
+                # track.title = str(trackDescriptor['title'])
+                track.disposition_flags = int(TrackDisposition.toFlags(trackDescriptor['disposition_list']))
+
+                s.commit()
+
+                return True
+
+            else:
+                return False
+
+        except Exception as ex:
+            raise click.ClickException(f"TrackController.addTrack(): {repr(ex)}")
+        finally:
+            s.close()
+
+
+    def findAllTracks(self, patternId):
+
+        try:
+            s = self.Session()
+
+            trackDescriptors = {}
+            trackDescriptors[TrackType.AUDIO.label()] = []
+            trackDescriptors[TrackType.SUBTITLE.label()] = []
+
+            q_audio = s.query(Track).filter(Track.pattern_id == int(patternId), Track.track_type == TrackType.AUDIO.index())
+            for audioTrack in q_audio.all():
+                trackDescriptors[TrackType.AUDIO.label()].append(audioTrack.id)
+                
+            q_subtitle = s.query(Track).filter(Track.pattern_id == int(patternId), Track.track_type == TrackType.SUBTITLE.index())
+            for subtitleTrack in q_subtitle.all():
+                trackDescriptors[TrackType.SUBTITLE.label()].append(subtitleTrack.id)
+
+            return trackDescriptors
+
+        except Exception as ex:
+            raise click.ClickException(f"TrackController.findAllTracks(): {repr(ex)}")
+        finally:
+            s.close()
+
+
+    def findTrack(self, patternId, trackType : TrackType, subIndex):
+        
+        try:
+            s = self.Session()
+            q = s.query(Track).filter(Track.pattern_id == int(patternId), Track.track_type == trackType.value, Track.sub_index == int(subIndex))
+
+            if q.count():
+                track = q.first()
+                return int(track.id)
+            else:
+                return None
+
+        except Exception as ex:
+            raise click.ClickException(f"TrackController.findTrack(): {repr(ex)}")
+        finally:
+            s.close()
+
+
+    def getTrackDescriptor(self, trackId):
+
+        try:
+            s = self.Session()
+            q = s.query(Track).filter(Track.id == int(trackId))
+
+            if q.count():
+                track = q.first()
+                #return self.getTrackDict(track)
+                return track.getDescriptor()
+            else:
+                return {}
+
+        except Exception as ex:
+            raise click.ClickException(f"TrackController.getTrackDescriptor(): {repr(ex)}")
+        finally:
+            s.close()
+
+
+    def deleteTrack(self, trackId):
+        try:
+            s = self.Session()
+            q = s.query(Track).filter(Track.id == int(trackId))
+
+            if q.count():
+
+                trackDescriptor = self.getTrackDict(q.first())
+
+
+                q_siblings = s.query(Track).filter(Track.pattern_id == int(trackDescriptor['pattern_id']), Track.track_type == trackDescriptor['type'].value).order_by(Track.sub_index)
+
+                subIndex = 0
+                for track in q_siblings.all():
+
+                    if track.sub_index == trackDescriptor['sub_index']:
+                        s.delete(track)
+                    else:
+                        track.sub_index = subIndex
+                        subIndex += 1
+
+                s.commit()
+                return True
+
+
+            return False
+
+
+        except Exception as ex:
+            raise click.ClickException(f"TrackController.deleteTrack(): {repr(ex)}")
+        finally:
+            s.close()
--- a/bin/ffx/track_controller.py
+++ b/bin/ffx/track_controller.py
@@ -9,13 +9,15 @@ from .iso_language import IsoLanguage

 from .track_type import TrackType

+from ffx.model.track_tag import TrackTag
+

 class TrackController():
    
    def __init__(self, context):
        
        self.context = context
-        self.Session = self.context['database_session'] # convenience
+        self.Session = self.context['database']['session'] # convenience


    def addTrack(self, trackDescriptor):
@@ -23,21 +25,22 @@ class TrackController():
        try:
            s = self.Session()

-            track = Track(pattern_id = int(trackDescriptor['pattern_id']),
-
-                            track_type = int(trackDescriptor['type'].value),
-
-                            sub_index = int(trackDescriptor['sub_index']),
-
-                            language = str(trackDescriptor['language'].threeLetter()),
-
-                            title = str(trackDescriptor['title']),
-
-                            disposition_flags = int(TrackDisposition.toFlags(trackDescriptor['disposition_list'])))
+            track = Track(pattern_id = int(trackDescriptor.getPatternId()),
+                            track_type = int(trackDescriptor.getType().index()),
+                            sub_index = int(trackDescriptor.getSubIndex()),
+                            disposition_flags = int(TrackDisposition.toFlags(trackDescriptor.getDispositionSet())))

            s.add(track)
            s.commit()

+            for k,v in trackDescriptor.getTags().items():
+
+                tag = TrackTag(track_id = track.id,
+                                key = k,
+                                value = v)
+                s.add(tag)
+            s.commit()
+
        except Exception as ex:
            raise click.ClickException(f"TrackController.addTrack(): {repr(ex)}")
        finally:
@@ -55,9 +58,9 @@ class TrackController():
                track = q.first()

                track.sub_index = int(trackDescriptor['sub_index'])
-                track.language = str(trackDescriptor['language'].threeLetter())
-                track.title = str(trackDescriptor['title'])
-                track.disposition_flags = int(TrackDisposition.toFlags(trackDescriptor['disposition_list']))
+                # track.language = str(trackDescriptor['language'].threeLetter())
+                # track.title = str(trackDescriptor['title'])
+                track.disposition_flags = int(TrackDisposition.toFlags(trackDescriptor.getDispositionSet()))

                s.commit()

@@ -71,44 +74,68 @@ class TrackController():
        finally:
            s.close()

-
-    def findAllTracks(self, patternId):
+#
+#    def findAllTracks(self, patternId):
+#
+#        try:
+#            s = self.Session()
+#
+#            trackDescriptors = {}
+#            trackDescriptors[TrackType.AUDIO.label()] = []
+#            trackDescriptors[TrackType.SUBTITLE.label()] = []
+#
+#            q_audio = s.query(Track).filter(Track.pattern_id == int(patternId), Track.track_type == TrackType.AUDIO.index())
+#            for audioTrack in q_audio.all():
+#                trackDescriptors[TrackType.AUDIO.label()].append(audioTrack.id)
+#                
+#            q_subtitle = s.query(Track).filter(Track.pattern_id == int(patternId), Track.track_type == TrackType.SUBTITLE.index())
+#            for subtitleTrack in q_subtitle.all():
+#                trackDescriptors[TrackType.SUBTITLE.label()].append(subtitleTrack.id)
+#
+#            return trackDescriptors
+#
+#        except Exception as ex:
+#            raise click.ClickException(f"TrackController.findAllTracks(): {repr(ex)}")
+#        finally:
+#            s.close()
+#
+    def findAudioTracks(self, patternId):

        try:
            s = self.Session()

-            trackDescriptors = {}
-            trackDescriptors[TrackType.AUDIO.label()] = []
-            trackDescriptors[TrackType.SUBTITLE.label()] = []
-
-            q_audio = s.query(Track).filter(Track.pattern_id == int(patternId), Track.track_type == TrackType.AUDIO.value)
-
-            for audioTrack in q_audio.all():
-                trackDescriptors[TrackType.AUDIO.label()].append(audioTrack.id)
-                
-            q_subtitle = s.query(Track).filter(Track.pattern_id == int(patternId), Track.track_type == TrackType.SUBTITLE.value)
-            for subtitleTrack in q_subtitle.all():
-                trackDescriptors[TrackType.SUBTITLE.label()].append(subtitleTrack.id)
-
-
-            return trackDescriptors
-
+            q = s.query(Track).filter(Track.pattern_id == int(patternId), Track.track_type == TrackType.AUDIO.index())
+            return [a for a in q.all()]

        except Exception as ex:
-            raise click.ClickException(f"TrackController.findAllTracks(): {repr(ex)}")
+            raise click.ClickException(f"TrackController.findAudioTracks(): {repr(ex)}")
+        finally:
+            s.close()
+
+    def findSubtitleTracks(self, patternId):
+
+        try:
+            s = self.Session()
+                
+            q = s.query(Track).filter(Track.pattern_id == int(patternId), Track.track_type == TrackType.SUBTITLE.index())
+            return [s for s in q.all()]
+
+        except Exception as ex:
+            raise click.ClickException(f"TrackController.findSubtitleTracks(): {repr(ex)}")
        finally:
            s.close()


-    def findTrack(self, patternId, trackType : TrackType, subIndex):
+    def findTrack(self, patternId : int, trackType : TrackType, subIndex : int):
        
        try:
            s = self.Session()
-            q = s.query(Track).filter(Track.pattern_id == int(patternId), Track.track_type == trackType.value, Track.sub_index == int(subIndex))
+            q = s.query(Track).filter(Track.pattern_id == int(patternId), Track.track_type == trackType.index(), Track.sub_index == int(subIndex))

            if q.count():
-                track = q.first()
-                return int(track.id)
+                #track = q.first()
+                #return int(track.id)
+                return q.first()
            else:
                return None

@@ -117,37 +144,6 @@ class TrackController():
        finally:
            s.close()

-
-    def getTrackDict(self, track):
-        trackDescriptor = {}
-        trackDescriptor['id'] = int(track.id)
-        trackDescriptor['pattern_id'] = int(track.pattern_id)
-        trackDescriptor['type'] = TrackType(track.track_type)
-        trackDescriptor['sub_index'] = int(track.sub_index)
-        trackDescriptor['language'] = IsoLanguage.findThreeLetter(track.language)
-        trackDescriptor['title'] = str(track.title)
-        trackDescriptor['disposition_list'] = TrackDisposition.toList(track.disposition_flags)
-        return trackDescriptor
-
-
-    def getTrackDescriptor(self, trackId):
-
-        try:
-            s = self.Session()
-            q = s.query(Track).filter(Track.id == int(trackId))
-
-            if q.count():
-                track = q.first()
-                return self.getTrackDict(track)
-            else:
-                return {}
-
-        except Exception as ex:
-            raise click.ClickException(f"TrackController.getTrackDescriptor(): {repr(ex)}")
-        finally:
-            s.close()
-
-
    def deleteTrack(self, trackId):
        try:
            s = self.Session()
@@ -155,15 +151,15 @@ class TrackController():

            if q.count():

-                trackDescriptor = self.getTrackDict(q.first())
+                #trackDescriptor = self.getTrackDict(q.first())
+                track = q.first()

-
-                q_siblings = s.query(Track).filter(Track.pattern_id == int(trackDescriptor['pattern_id']), Track.track_type == trackDescriptor['type'].value).order_by(Track.sub_index)
+                q_siblings = s.query(Track).filter(Track.pattern_id == track.getPatternId(), Track.track_type == track.getType().index()).order_by(Track.sub_index)

                subIndex = 0
                for track in q_siblings.all():

-                    if track.sub_index == trackDescriptor['sub_index']:
+                    if track.sub_index == track.getSubIndex():
                        s.delete(track)
                    else:
                        track.sub_index = subIndex
--- a/bin/ffx/track_delete_screen.py
+++ b/bin/ffx/track_delete_screen.py
@@ -7,6 +7,7 @@ from textual.widgets import Header, Footer, Placeholder, Label, ListView, ListIt
 from textual.containers import Grid, Horizontal

 from ffx.model.pattern import Pattern
+from ffx.track_descriptor import TrackDescriptor

 # from .show_controller import ShowController
 # from .pattern_controller import PatternController
@@ -54,26 +55,26 @@ class TrackDeleteScreen(Screen):
    }
    """

-    def __init__(self, trackId = None):
+    def __init__(self, trackDescriptor : TrackDescriptor):
        super().__init__()

        self.context = self.app.getContext()
-        self.Session = self.context['database_session'] # convenience
+        self.Session = self.context['database']['session'] # convenience

-        if trackId is None:
-            raise click.ClickException('TrackDeleteScreen.init(): trackId is required to be set')
+        if type(trackDescriptor) is not TrackDescriptor:
+            raise click.ClickException('TrackDeleteScreen.init(): trackDescriptor is required to be of type TrackDescriptor')

        self.__tc = TrackController(context = self.context)

-        self.track_obj = self.__tc.getTrackDescriptor(trackId)
+        self.__trackDescriptor = trackDescriptor


    def on_mount(self):

-        self.query_one("#subindexlabel", Static).update(str(self.track_obj['sub_index']))
-        self.query_one("#patternlabel", Static).update(str(self.track_obj['pattern_id']))
-        self.query_one("#languagelabel", Static).update(str(self.track_obj['language'].label()))
-        self.query_one("#titlelabel", Static).update(str(str(self.track_obj['title'])))
+        self.query_one("#subindexlabel", Static).update(str(self.__trackDescriptor.getSubIndex()))
+        self.query_one("#patternlabel", Static).update(str(self.__trackDescriptor.getPatternId()))
+        self.query_one("#languagelabel", Static).update(str(self.__trackDescriptor.getLanguage().label()))
+        self.query_one("#titlelabel", Static).update(str(str(self.__trackDescriptor.getTitle())))


    def compose(self):
@@ -83,7 +84,7 @@ class TrackDeleteScreen(Screen):
        with Grid():
            
            #1
-            yield Static(f"Are you sure to delete the following {self.track_obj['type'].label()} track?", id="toplabel", classes="four")
+            yield Static(f"Are you sure to delete the following {self.__trackDescriptor.getType().label()} track?", id="toplabel", classes="four")

            #2
            yield Static("sub index")
@@ -122,12 +123,15 @@ class TrackDeleteScreen(Screen):

        if event.button.id == "delete_button":

-            trackId = self.__tc.findTrack(self.track_obj['pattern_id'], self.track_obj['type'], self.track_obj['sub_index'])
-            
-            if trackId is not None:
+            track = self.__tc.findTrack(self.__trackDescriptor.getPatternId(), self.__trackDescriptor.getType(), self.__trackDescriptor.getSubIndex())

-                if self.__tc.deleteTrack(trackId):                    
-                    self.dismiss(self.track_obj)
+            if track is None:
+                raise click.ClickException(f"Track is none: patternId={self.__trackDescriptor.getPatternId()} type={self.__trackDescriptor.getType()} subIndex={self.__trackDescriptor.getSubIndex()}")
+
+            if track is not None:
+
+                if self.__tc.deleteTrack(track.getId()):                    
+                    self.dismiss(self.__trackDescriptor)

                else:
                    #TODO: Meldung
--- a/bin/ffx/track_descriptor.py
+++ b/bin/ffx/track_descriptor.py
@@ -1,56 +1,170 @@
-from language_data import LanguageData
-from stream_type import StreamType
+from .iso_language import IsoLanguage
+from .track_type import TrackType
+from .audio_layout import AudioLayout
+from .track_disposition import TrackDisposition

-class StreamDescriptor():

-    def __init__(self,
-                streamType : StreamType,
-                language : LanguageData,
-                title : str,
-                codec : str,
-                subIndex : int = -1):
+class TrackDescriptor():
+    
+        INDEX_KEY = 'index'
+        SUB_INDEX_KEY = 'sub_index'
+        PATTERN_ID_KEY = 'pattern_id'

-        self.__streamType = streamType
-        self.__subIndex = subIndex
+        TRACK_TYPE_KEY = 'track_type'
+        DISPOSITION_SET_KEY = 'disposition_set'
+        TAGS_KEY = 'tags'
+        AUDIO_LAYOUT_KEY = 'audio_layout'

-        self.__streamLanguage = language
-        self.__streamTitle = title
+        FFPROBE_DISPOSITION_KEY = 'disposition'
+        FFPROBE_TAGS_KEY = 'tags'

-        self.__codecName = codec
+        def __init__(self, **kwargs):

-#             "index": 4,
-#             "codec_name": "hdmv_pgs_subtitle",
-#             "codec_long_name": "HDMV Presentation Graphic Stream subtitles",
-#             "codec_type": "subtitle",
-#             "codec_tag_string": "[0][0][0][0]",
-#             "codec_tag": "0x0000",
-#             "r_frame_rate": "0/0",
-#             "avg_frame_rate": "0/0",
-#             "time_base": "1/1000",
-#             "start_pts": 0,
-#             "start_time": "0.000000",
-#             "duration_ts": 1421035,
-#             "duration": "1421.035000",
-#             "disposition": {
-#                 "default": 1,
-#                 "dub": 0,
-#                 "original": 0,
-#                 "comment": 0,
-#                 "lyrics": 0,
-#                 "karaoke": 0,
-#                 "forced": 0,
-#                 "hearing_impaired": 0,
-#                 "visual_impaired": 0,
-#                 "clean_effects": 0,
-#                 "attached_pic": 0,
-#                 "timed_thumbnails": 0,
-#                 "non_diegetic": 0,
-#                 "captions": 0,
-#                 "descriptions": 0,
-#                 "metadata": 0,
-#                 "dependent": 0,
-#                 "still_image": 0
-#             },
-#             "tags": {
-#                 "language": "ger",
-#                 "title": "German Full"
+                if TrackDescriptor.PATTERN_ID_KEY in kwargs.keys():
+                        if type(kwargs[TrackDescriptor.PATTERN_ID_KEY]) is not int:
+                                raise TypeError(f"TrackDesciptor.__init__(): Argument {TrackDescriptor.PATTERN_ID_KEY} is required to be of type int")
+                        self.__patternId = kwargs[TrackDescriptor.PATTERN_ID_KEY]
+                else:
+                        self.__patternId = -1
+
+                if TrackDescriptor.INDEX_KEY in kwargs.keys():
+                        if type(kwargs[TrackDescriptor.INDEX_KEY]) is not int:
+                                raise TypeError(f"TrackDesciptor.__init__(): Argument {TrackDescriptor.INDEX_KEY} is required to be of type int")
+                        self.__index = kwargs[TrackDescriptor.INDEX_KEY]
+                else:
+                        self.__index = -1
+
+                if TrackDescriptor.SUB_INDEX_KEY in kwargs.keys():
+                        if type(kwargs[TrackDescriptor.SUB_INDEX_KEY]) is not int:
+                                raise TypeError(f"TrackDesciptor.__init__(): Argument {TrackDescriptor.SUB_INDEX_KEY} is required to be of type dict")
+                        self.__subIndex = kwargs[TrackDescriptor.SUB_INDEX_KEY]
+                else:
+                        self.__subIndex = -1
+
+
+                if TrackDescriptor.TRACK_TYPE_KEY in kwargs.keys():
+                        if type(kwargs[TrackDescriptor.TRACK_TYPE_KEY]) is not TrackType:
+                                raise TypeError(f"TrackDesciptor.__init__(): Argument {TrackDescriptor.TRACK_TYPE_KEY} is required to be of type TrackType")
+                        self.__trackType = kwargs[TrackDescriptor.TRACK_TYPE_KEY]
+                else:
+                        self.__trackType = TrackType.UNKNOWN
+
+                if TrackDescriptor.TAGS_KEY in kwargs.keys():
+                        if type(kwargs[TrackDescriptor.TAGS_KEY]) is not dict:
+                                raise TypeError(f"TrackDesciptor.__init__(): Argument {TrackDescriptor.TAGS_KEY} is required to be of type dict")
+                        self.__trackTags = kwargs[TrackDescriptor.TAGS_KEY]
+                else:
+                        self.__trackTags = {}
+
+                if TrackDescriptor.DISPOSITION_SET_KEY in kwargs.keys():
+                        if type(kwargs[TrackDescriptor.DISPOSITION_SET_KEY]) is not set:
+                                raise TypeError(f"TrackDesciptor.__init__(): Argument {TrackDescriptor.DISPOSITION_SET_KEY} is required to be of type set")
+                        for d in kwargs[TrackDescriptor.DISPOSITION_SET_KEY]:
+                                if type(d) is not TrackDisposition:
+                                        raise TypeError(f"TrackDesciptor.__init__(): All elements of argument set {TrackDescriptor.DISPOSITION_SET_KEY} is required to be of type TrackDisposition")
+                        self.__dispositionSet = kwargs[TrackDescriptor.DISPOSITION_SET_KEY]
+                else:
+                        self.__dispositionSet = set()
+
+                if TrackDescriptor.AUDIO_LAYOUT_KEY in kwargs.keys():
+                        if type(kwargs[TrackDescriptor.AUDIO_LAYOUT_KEY]) is not AudioLayout:
+                                raise TypeError(f"TrackDesciptor.__init__(): Argument {TrackDescriptor.AUDIO_LAYOUT_KEY} is required to be of type AudioLayout")
+                        self.__audioLayout = kwargs[TrackDescriptor.AUDIO_LAYOUT_KEY]
+                else:
+                        self.__audioLayout = AudioLayout.LAYOUT_UNDEFINED
+
+
+        @classmethod
+        def fromFfprobe(cls, streamObj):
+                """Processes ffprobe stream data as array with elements according to the following example      
+                {
+                "index": 4,
+                "codec_name": "hdmv_pgs_subtitle",
+                "codec_long_name": "HDMV Presentation Graphic Stream subtitles",
+                "codec_type": "subtitle",
+                "codec_tag_string": "[0][0][0][0]",
+                "codec_tag": "0x0000",
+                "r_frame_rate": "0/0",
+                "avg_frame_rate": "0/0",
+                "time_base": "1/1000",
+                "start_pts": 0,
+                "start_time": "0.000000",
+                "duration_ts": 1421035,
+                "duration": "1421.035000",
+                "disposition": {
+                        "default": 1,
+                        "dub": 0,
+                        "original": 0,
+                        "comment": 0,
+                        "lyrics": 0,
+                        "karaoke": 0,
+                        "forced": 0,
+                        "hearing_impaired": 0,
+                        "visual_impaired": 0,
+                        "clean_effects": 0,
+                        "attached_pic": 0,
+                        "timed_thumbnails": 0,
+                        "non_diegetic": 0,
+                        "captions": 0,
+                        "descriptions": 0,
+                        "metadata": 0,
+                        "dependent": 0,
+                        "still_image": 0
+                },
+                "tags": {
+                        "language": "ger",
+                        "title": "German Full"
+                }
+                }
+                """
+
+                trackType = TrackType.fromLabel(streamObj['codec_type']) if 'codec_type' in streamObj.keys() else TrackType.UNKNOWN
+
+                if trackType != TrackType.UNKNOWN:
+
+                        kwargs = {}
+                        kwargs[TrackDescriptor.TRACK_TYPE_KEY]          = trackType
+                        kwargs[TrackDescriptor.DISPOSITION_SET_KEY]     = {t for d in (k for (k,v) in streamObj[TrackDescriptor.FFPROBE_DISPOSITION_KEY].items() if v)
+                                                                                if (t := TrackDisposition.find(d)) if t is not None} if TrackDescriptor.FFPROBE_DISPOSITION_KEY in streamObj.keys() else set()
+                        kwargs[TrackDescriptor.TAGS_KEY]                = streamObj[TrackDescriptor.FFPROBE_TAGS_KEY] if TrackDescriptor.FFPROBE_TAGS_KEY in streamObj.keys() else {}
+                        kwargs[TrackDescriptor.AUDIO_LAYOUT_KEY]        = AudioLayout.identify(streamObj) if trackType == TrackType.AUDIO.label() else AudioLayout.LAYOUT_UNDEFINED
+
+                        return cls(**kwargs)
+                else:
+                        return None
+
+
+        def getPatternId(self):
+                return self.__patternId
+
+        def getIndex(self):
+                return self.__index
+
+        def getSubIndex(self):
+                return self.__subIndex
+
+
+        def getType(self):
+                return self.__trackType
+
+        def getLanguage(self):
+                if 'language' in self.__trackTags.keys():
+                       return IsoLanguage.findThreeLetter(self.__trackTags['language'])
+                else:
+                       return IsoLanguage.UNDEFINED
+
+        def getTitle(self):
+                if 'title' in self.__trackTags.keys():
+                       return str(self.__trackTags['title'])
+                else:
+                       return ''
+
+        def getAudioLayout(self):
+                return self.__audioLayout
+
+
+        def getTags(self):
+                return self.__trackTags
+        
+        def getDispositionSet(self):
+                return self.__dispositionSet
--- a/bin/ffx/track_details_screen.py
+++ b/bin/ffx/track_details_screen.py
@@ -18,6 +18,9 @@ from .track_type import TrackType

 from .iso_language import IsoLanguage
 from .track_disposition import TrackDisposition
+from .audio_layout import AudioLayout
+
+from .track_descriptor import TrackDescriptor


 # Screen[dict[int, str, int]]
@@ -75,59 +78,68 @@ class TrackDetailsScreen(Screen):
    }
    """

-    def __init__(self, trackId = None, patternId = None, trackType : TrackType = None, subIndex = None):
+    def __init__(self, trackDescriptor = None, patternId = None, trackType : TrackType = None, subIndex = None):
        super().__init__()

        self.context = self.app.getContext()
-        self.Session = self.context['database_session'] # convenience
+        self.Session = self.context['database']['session'] # convenience

        self.__tc = TrackController(context = self.context)
        self.__pc = PatternController(context = self.context)

-        self.track_obj = self.__tc.getTrackDescriptor(trackId) if trackId is not None else {}
+    
+        INDEX_KEY = 'index'
+        SUB_INDEX_KEY = 'sub_index'
+        PATTERN_ID_KEY = 'pattern_id'

-        if self.track_obj:
-            self.trackType = self.track_obj['type']
-            self.subIndex = self.track_obj['sub_index']
-            self.pattern_obj = self.__pc.getPatternDescriptor(self.track_obj['pattern_id'])
-            self.track_obj['is_new'] = False
+        TRACK_TYPE_KEY = 'track_type'
+        DISPOSITION_SET_KEY = 'disposition_set'
+        TAGS_KEY = 'tags'
+        AUDIO_LAYOUT_KEY = 'audio_layout'
+        
+#         if trackDescriptor is None:
+#             self.__trackDescriptor = TrackDescriptor(index=,
+#                                                      sub_index=
+#                                                      pattern_id=patternId,
+#                                                      track_type=trackType)
+#         else:
+
+        self.__isNew = trackDescriptor is None
+        if self.__isNew:
+            self.__trackType = trackType
+            self.__subIndex = subIndex
+            self.__trackDescriptor = None
+            self.__pattern = self.__pc.getPattern(patternId) if patternId is not None else {}
        else:
-            self.trackType = trackType
-            self.subIndex = subIndex
-            self.pattern_obj = self.__pc.getPatternDescriptor(patternId) if patternId is not None else {}
-            self.track_obj['is_new'] = True
-
-        if self.trackType is None:
-            raise click.ClickException('Track type is required to be set')
-        if self.subIndex is None:
-            raise click.ClickException('Sub index for track is required to be set')
+            self.__trackType = trackDescriptor.getType()
+            self.__subIndex = trackDescriptor.getSubIndex()
+            self.__trackDescriptor = trackDescriptor
+            self.__pattern = self.__pc.getPattern(self.__trackDescriptor.getPatternId())


    def on_mount(self):

-        if self.pattern_obj:
-            self.query_one("#patternlabel", Static).update(str(self.pattern_obj['pattern']))
+        if self.__pattern is not None:
+            self.query_one("#patternlabel", Static).update(self.__pattern.getPattern())


-        if self.subIndex is not None:
-            self.query_one("#subindexlabel", Static).update(str(self.subIndex))
+        if self.__subIndex is not None:
+            self.query_one("#subindexlabel", Static).update(str(self.__subIndex))
+


        for d in TrackDisposition:

-            dispositionIsSet = (self.track_obj
-                                and 'disposition_list' in self.track_obj.keys()
-                                and d in self.track_obj['disposition_list'])
+            dispositionIsSet = (self.__trackDescriptor is not None
+                                and d in self.__trackDescriptor.getDispositionSet())

-            disposition = (d.label(), d.index(), dispositionIsSet)
-            self.query_one("#dispositions_selection_list", SelectionList).add_option(disposition) 
+            dispositionOption = (d.label(), d.index(), dispositionIsSet)
+            self.query_one("#dispositions_selection_list", SelectionList).add_option(dispositionOption) 

-        if 'language' in self.track_obj.keys():
-            self.query_one("#language_select", Select).value = self.track_obj['language'].label()
-
-        if 'title' in self.track_obj.keys():
-            self.query_one("#title_input", Input).value = str(self.track_obj['title'])
+        if self.__trackDescriptor is not None:

+            self.query_one("#language_select", Select).value = self.__trackDescriptor.getLanguage().label()
+            self.query_one("#title_input", Input).value = self.__trackDescriptor.getTitle()


    def compose(self):
@@ -148,7 +160,7 @@ class TrackDetailsScreen(Screen):
        with Grid():

            # 1
-            yield Static(f"New {self.trackType.label()} stream" if self.track_obj['is_new'] else f"Edit {self.trackType.label()} stream", id="toplabel", classes="five")
+            yield Static(f"New {self.__trackType.label()} stream" if self.__isNew else f"Edit {self.__trackType.label()} stream", id="toplabel", classes="five")

            # 2
            yield Static("for pattern")
@@ -220,50 +232,57 @@ class TrackDetailsScreen(Screen):

    def getTrackDescriptorFromInput(self):

-        trackDescriptor = {}
+        kwargs = {}

-        trackDescriptor['pattern_id'] = int(self.pattern_obj['id'])
+        kwargs[TrackDescriptor.PATTERN_ID_KEY] = int(self.__pattern.getId())

-        trackDescriptor['type'] = TrackType(self.trackType)
-        trackDescriptor['sub_index'] = self.subIndex
+        kwargs[TrackDescriptor.INDEX_KEY] = -1
+        kwargs[TrackDescriptor.SUB_INDEX_KEY] = self.__subIndex

-        trackDescriptor['language'] = IsoLanguage.find(str(self.query_one("#language_select", Select).value))
-        trackDescriptor['title'] = str(self.query_one("#title_input", Input).value)
+        kwargs[TrackDescriptor.TRACK_TYPE_KEY] = self.__trackType

+        trackTags = {}
+        language = self.query_one("#language_select", Select).value
+        # raise click.ClickException(f"language={language}")
+        if language:
+            trackTags['language'] = IsoLanguage.find(language).threeLetter()
+        title = self.query_one("#title_input", Input).value
+        if title:
+            trackTags['title'] = title
+        kwargs[TrackDescriptor.TAGS_KEY] = trackTags

-        disposition_flags = sum([2**f for f in self.query_one("#dispositions_selection_list", SelectionList).selected])
+        dispositionFlags = sum([2**f for f in self.query_one("#dispositions_selection_list", SelectionList).selected])
+        kwargs[TrackDescriptor.DISPOSITION_SET_KEY] = TrackDisposition.toSet(dispositionFlags)

-        trackDescriptor['disposition_list'] = TrackDisposition.toList(disposition_flags)
+        kwargs[TrackDescriptor.AUDIO_LAYOUT_KEY] = AudioLayout.LAYOUT_UNDEFINED

-
-        return trackDescriptor
+        return TrackDescriptor(**kwargs)


   # Event handler for button press
    def on_button_pressed(self, event: Button.Pressed) -> None:
+
        # Check if the button pressed is the one we are interested in
        if event.button.id == "save_button":

            trackDescriptor = self.getTrackDescriptorFromInput()

-
            # Check for multiple default/forced disposition flags

-            trackIdList = self.__tc.findAllTracks(self.pattern_obj['id'])[self.trackType.label()]
+            if self.__trackType == TrackType.AUDIO:
+                trackList = self.__tc.findAudioTracks(self.__pattern.getId())
+            elif self.__trackType == TrackType.SUBTITLE:
+                trackList = self.__tc.findSubtitleTracks(self.__pattern.getId())
+            else:
+                trackList = []

-            descriptorList = [d for d in (self.__tc.getTrackDescriptor(t) for t in trackIdList)    
-                                if d['type'] == self.trackType
-                                and d['sub_index'] != self.subIndex]
+            siblingTrackList = [t for t in trackList if t.getType() == self.__trackType and t.getSubIndex() != self.__subIndex]

+            numDefaultTracks = len([t for t in siblingTrackList if TrackDisposition.DEFAULT in t.getDispositionSet()])
+            numForcedTracks = len([t for t in siblingTrackList if TrackDisposition.FORCED in t.getDispositionSet()])

-            numDefaultTracks = [d for d in descriptorList if TrackDisposition.DEFAULT in d['disposition_list']]
-            numForcedTracks = [d for d in descriptorList if TrackDisposition.FORCED in d['disposition_list']]
-
-            doubleDefaultOrForced = ((TrackDisposition.DEFAULT in trackDescriptor['disposition_list'] and numDefaultTracks)
-                                        or (TrackDisposition.FORCED in trackDescriptor['disposition_list'] and numForcedTracks))
-
-
-            if doubleDefaultOrForced:
+            if ((TrackDisposition.DEFAULT in trackDescriptor.getDispositionSet() and numDefaultTracks)
+                    or (TrackDisposition.FORCED in trackDescriptor.getDispositionSet() and numForcedTracks)):

                self.query_one("#messagestatic", Static).update("Cannot add another stream with disposition flag 'debug' or 'forced' set")
      
@@ -271,15 +290,15 @@ class TrackDetailsScreen(Screen):

                self.query_one("#messagestatic", Static).update(" ")

-                if self.track_obj['is_new']:
+                if self.__isNew:

                    self.__tc.addTrack(trackDescriptor)
                    self.dismiss(trackDescriptor)

                else:

-                    trackId = self.__tc.findTrack(self.pattern_obj['id'], self.trackType, self.subIndex)
-                
+                    trackId = self.__tc.findTrack(self.__pattern.getId(), self.__trackType, self.__subIndex)
+
                    if self.__tc.updateTrack(trackId, trackDescriptor):
                        self.dismiss(trackDescriptor)

--- a/bin/ffx/track_disposition.py
+++ b/bin/ffx/track_disposition.py
@@ -1,5 +1,7 @@
+import difflib, click
+
 from enum import Enum
-import difflib
+

 class TrackDisposition(Enum):

@@ -23,6 +25,7 @@ class TrackDisposition(Enum):
    DEPENDENT           = {"name": "dependent", "index": 16}
    STILL_IMAGE         = {"name": "still_image", "index": 17}

+
    def label(self):
        return str(self.value['name'])

@@ -31,19 +34,32 @@ class TrackDisposition(Enum):


    @staticmethod
-    def toFlags(dispositionList):
+    def toFlags(dispositionSet):
        """Flags stored in integer bits (2**index)"""

+        if type(dispositionSet) is not set:
+            raise click.ClickException('TrackDisposition.toFlags(): Argument is not of type set')
+
        flags = 0
-        for d in dispositionList:
+        for d in dispositionSet:
+            if type(d) is not TrackDisposition:
+                raise click.ClickException('TrackDisposition.toFlags(): Element not of type TrackDisposition')
            flags += 2 ** d.index()
        return flags

    @staticmethod
-    def toList(flags):
-        
-        dispositionList = []
+    def toSet(flags):
+        dispositionSet = set()
        for d in TrackDisposition:
            if flags & int(2 ** d.index()):
-                dispositionList += [d]
-        return dispositionList
+                dispositionSet.add(d)
+        return dispositionSet
+
+
+    @staticmethod
+    def find(label):
+        matchingDispositions = [d for d in TrackDisposition if d.label() == str(label)]
+        if matchingDispositions:
+            return matchingDispositions[0]
+        else:
+            return None
--- a/bin/ffx/track_type.py
+++ b/bin/ffx/track_type.py
@@ -2,18 +2,33 @@ from enum import Enum

 class TrackType(Enum):

-    VIDEO = 1
-    AUDIO = 2
-    SUBTITLE = 3
+    VIDEO       = {'label': 'video', 'index': 1}
+    AUDIO       = {'label': 'audio', 'index': 2}
+    SUBTITLE    = {'label': 'subtitle', 'index': 3}
+
+    UNKNOWN    = {'label': 'unknown', 'index': 0}


    def label(self):
        """Returns the stream type as string"""
+        return str(self.value['label'])

-        labels = {
-            TrackType.VIDEO: "video",
-            TrackType.AUDIO: "audio",
-            TrackType.SUBTITLE: "subtitle"
-        }
+    def index(self):
+        """Returns the stream type index"""
+        return int(self.value['index'])

-        return labels.get(self, "undefined")
+    @staticmethod
+    def fromLabel(label):
+        tlist = [t for t in TrackType if t.value['label'] == label]
+        if tlist:
+            return tlist[0]
+        else:
+            return TrackType.UNKNOWN
+
+    @staticmethod
+    def fromIndex(index):
+        tlist = [t for t in TrackType if t.value['index'] == index]
+        if tlist:
+            return tlist[0]
+        else:
+            return TrackType.UNKNOWN
Author	SHA1	Message	Date
Maveno	7d7e43c6f0	rework descriptors raw	2024-10-06 09:58:37 +02:00
Maveno	1c9f67e47a	nightl	2024-10-05 22:41:57 +02:00
Maveno	eaee3b34da	nightl	2024-10-04 23:45:25 +02:00
Maveno	5e017a8373	nightl	2024-10-03 23:22:32 +02:00