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96 lines
3.3 KiB
Text
96 lines
3.3 KiB
Text
= Media detail browser =
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The package contains a UI for browsing media files and showing details of the
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files.
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= Browsing =
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- in the preview hook of the file browser we run discover and update the details
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- if one has grillo installed we could use grillo sources in addition to local files
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- there should be a "open url" menu entry in addition
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= Details =
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- show container, video-tracks, audio-track, subtitle-trackes, metadata and
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parsing messages
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- auto-play after updating the details
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have a menu command to turn auto-play off
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- offer several commands in addition (see below)
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example output from commandline tool:
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> gst-discoverer -v /home/ensonic/Musik/xotox-hypnocat.mp3
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Topology:
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audio: audio/mpeg, mpegversion=(int)1, mpegaudioversion=(int)1, layer=(int)3, rate=(int)44100, channels=(int)2, parsed=(boolean)true
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Codec:
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audio/mpeg, mpegversion=(int)1, mpegaudioversion=(int)1, layer=(int)3, rate=(int)44100, channels=(int)2, parsed=(boolean)true
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Additional info:
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None
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Channels: 2
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Sample rate: 44100
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Depth: 16
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Bitrate: 128000
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Max bitrate: 0
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Tags:
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taglist, audio-codec=(string)"MPEG\ 1\ Audio\,\ Layer\ 3\ \(MP3\)", has-crc=(boolean)false, channel-mode=(string)stereo, bitrate=(uint)128000;
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Duration:
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0:04:00.039125000
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== compare ==
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- dup detail pane and allow to pick a new file
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- show differing entries in red
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- add a narrow vertical bar between the two details panes and mark blocks with a
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delta red
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- diffing one (broken) file against several known working files would be nice
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- it would build ranges for the group of files (e.g. for the video width)
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- it would highlight fields that the are different to any of the working files
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== analyse ==
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- play the file by using fakesinks and gather statistics:
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- bitrate profiles for each a/mediainfo/v track
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- media specific:
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- audio: volume profile
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- video: contrast profile
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- show disconts as vertical bars
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== structural view/hex view ==
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- make parsing elements post structural messages (if enabled via property)
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- message would contain:
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- stream offset in bytes
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- block identifier (e.g. fourcc)
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- human readable description (if available)
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- flags (e.g. if the block is used or skipped)
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- indentation depth
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- we would need a way to indicate that e.g. h264parse would be indented below
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the containing container block
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- a structured hex view would be nice
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(somehow align the parse tree with the hexdump)
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== unsorted ==
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- handle chapters
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- tag lists
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- if there is a "language-code" in the tags (or subtitles?) use flag icons
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- deluge installs some under: /usr/share/pyshared/deluge/data/mediainfo/pixmaps/flags/
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- handle album art in tag lists
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- geo-tags: map-widget?, link to google-maps?
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- artist: links to {last.fm,wikipedia}
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- show level meters for audio
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== deep scan mode ==
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- update fields when playing
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- listen for duration messages on the bus
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- get bit-rate over time
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- specify window size, get min,max,avg bitrate for each window
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- gst-mi can draw them as a graph
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- get key-frame statistics
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- number of keyframes
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- min,max,avg keyframe intervall
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- raw data statistics
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- audio: level, ...
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- video: histogram, ...
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= TODO for discoverer =
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- add deep-scan mode (see above)
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- get duration per stream
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- this would need individual queries on the demuxer src pads
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- or duration as part of per stream tags
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