Mediainfo is missing attributes when inspecting Theora file without audio.
I get following attributes for video when I run mediainfo for normal file with audio stream:
Video
Count : 144
Count of stream of this kind : 1
Kind of stream : Video
Kind of stream : Video
Stream identifier : 0
ID : 1210757980
ID : 1210757980 (0x482AB35C)
Format : Theora
Codec : Theora
Codec : Theora
Codec/Family : Theora
Codec/Url : http://www.theora.com
Duration : 2600
Duration : 2s 600ms
Duration : 2s 600ms
Duration : 2s 600ms
Duration : 00:00:02.600
Bit rate : 45000
Bit rate : 45.0 Kbps
Width : 304
Width : 304 pixels
Height : 208
Height : 208 pixels
Pixel aspect ratio : 1.000
Display aspect ratio : 1.462
Display aspect ratio : 1.462
Frame rate : 15.000
Frame rate : 15.000 fps
Frame count : 39
Bits/(Pixel*Frame) : 0.047
Writing library : Xiph.Org libTheora I 20071025 3 2 1
Writing library : libTheora 3.2.1 (UTC 2007-10-25)
Writing library/Name : libTheora
Writing library/Version : 3.2.1
Writing library/Date : UTC 2007-10-25
But after I removed audio track from the file with ffmpeg (ffmpeg -i theora.ogv -acodec none -an noaudio.ogv) Mediainfo only gives me following:
Video
Count : 144
Count of stream of this kind : 1
Kind of stream : Video
Kind of stream : Video
Stream identifier : 0
ID : 0
ID : 0 (0x0)
Format : Theora
Codec : Theora
Codec : Theora
Codec/Family : Theora
Codec/Url : http://www.theora.com
Bit rate : 200000
Bit rate : 200 Kbps
Width : 304
Width : 304 pixels
Height : 208
Height : 208 pixels
Pixel aspect ratio : 1.000
Display aspect ratio : 1.462
Display aspect ratio : 1.462
Frame rate : 15.000
Frame rate : 15.000 fps
Bits/(Pixel*Frame) : 0.211
Writing library : Xiph.Org libTheora I 20071025 3 2 1
Writing library : libTheora 3.2.1 (UTC 2007-10-25)
Writing library/Name : libTheora
Writing library/Version : 3.2.1
Writing library/Date : UTC 2007-10-25
As you can see there is missing a many attrbutes. Like Duration and Frame count.
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Theora file without audio
Last edit: Anonymous 2013-11-26
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Normal ogg theora file
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Oh, and I'm using MediaInfo Command line, MediaInfoLib - v0.7.18
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Tested also with MediaInfoLib - v0.7.24.
Theora timestamp is awful, I didn't yet implemented it.
When there is audio, I use the audio timestamp.
No audio --> No cool timestamp.
Modified to feature request.