some ASF files hold metadata and cover art in the
Metadata Library Object which was so far not read
e.g.:
before:
Input #0, asf, from 'wma_with_metadata_library_object_tag.wma':
Metadata:
track : 0
WM/MediaPrimaryClassID: {D1607DBC-E323-4BE2-86A1-48A42A28441E}
WMFSDKVersion : 10.00.00.3646
WMFSDKNeeded : 0.0.0.0000
IsVBR : 0
WM/Year : 2004
WM/EncodingTime : 2085925
WM/UniqueFileIdentifier: AMGa_id=R 713232;AMGp_id=P 24137;AMGt_id=T
7262505
publisher : Columbia
WM/Provider : AMG
WM/ProviderRating: 5
WM/ProviderStyle: Rock
Duration: 00:03:18.19, start: 0.000000, bitrate: 193 kb/s
Stream #0.0(eng): Audio: wmav2, 44100 Hz, 2 channels, fltp, 192 kb/s
after:
Input #0, asf, from 'wma_with_metadata_library_object_tag.wma':
Metadata:
genre : Rock
WM/MediaPrimaryClassID: {D1607DBC-E323-4BE2-86A1-48A42A28441E}
WMFSDKVersion : 10.00.00.3646
WMFSDKNeeded : 0.0.0.0000
WM/ProviderStyle: Rock
WM/Year : 2004
WM/EncodingTime : 2085925
WM/UniqueFileIdentifier: AMGa_id=R 713232;AMGp_id=P 24137;AMGt_id=T
7262505
publisher : Columbia
WM/Provider : AMG
WM/ProviderRating: 5
IsVBR : 0
DeviceConformanceTemplate: L3
WM/WMADRCPeakReference: 326
WM/WMADRCAverageReference: 109
Title : Wheels
album : Pressure Chief
track : 1
artist : Cake
album_artist : Cake
composer : J. McCrea
Duration: 00:03:18.19, start: 0.000000, bitrate: 193 kb/s
Stream #0.0, 1, 1/90000: Video: mjpeg, yuvj420p, 200x201 [PAR 300:300 DAR
200:201], 0/1, 90k tbn
Metadata:
title : Front Cover
comment : Cover (front)
Stream #0.1, 1, 1/90000: Video: mjpeg, yuvj420p, 75x75 [PAR 300:300 DAR
1:1], 0/1, 90k tbn
Metadata:
title : Back Cover
comment : Cover (back)
Stream #0.2(eng), 18, 1/1000: Audio: wmav2, 44100 Hz, 2 channels, fltp, 192
kb/s
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