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| author | wm4 <wm4@nowhere> | 2020-02-21 00:19:17 +0100 |
|---|---|---|
| committer | wm4 <wm4@nowhere> | 2020-02-21 00:19:17 +0100 |
| commit | 6f0297dff497f219d6da3e09ecfe0fd545825d9c (patch) | |
| tree | db73f7bce99c45c33348e16905a97e48680f0417 /DOCS | |
| parent | 6726b7a1ba5248e4edcab3dbd24c730551afb012 (diff) | |
| download | mpv-6f0297dff497f219d6da3e09ecfe0fd545825d9c.tar.bz2 mpv-6f0297dff497f219d6da3e09ecfe0fd545825d9c.tar.xz | |
edl: make it possible to delay-load files with multiple tracks
Until now, delay-loading was for files with single tracks only
(basically what DASH and HLS like to expose, so adaptive streaming and
codec selection becomes easier - for sites, not for us). But they also
provide some interleaved versions, probably for compatibility. Until
now, we were forced to eagerly load it (making startup slightly slower).
But there is not much missing. We just need a way to provide multiple
metadata entries, and use them to represent each track.
A side effect is now that the "track_meta" header can be used for normal
EDL files too.
Diffstat (limited to 'DOCS')
| -rw-r--r-- | DOCS/edl-mpv.rst | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/DOCS/edl-mpv.rst b/DOCS/edl-mpv.rst index ec60d09ccc..ac85f427d0 100644 --- a/DOCS/edl-mpv.rst +++ b/DOCS/edl-mpv.rst @@ -214,6 +214,16 @@ It provides following parameters change track metadata: ``byterate`` Number of bytes per second this stream uses. (Purely informational.) +``index`` + The numeric index of the track this should map to (default: -1). This is + the 0-based index of the virtual stream as seen by the player, enumerating + all audio/video/subtitle streams. If nothing matches, this is silently + discarded. The special index -1 (the default) has two meanings: if there + was a previous meta data entry (either ``!track_meta`` or ``!delay_open`` + element since the last ``!new_stream``), then this element manipulates + the previous meta data entry. If there was no previous entry, a new meta + data entry that matches all streams is created. + Example:: # mpv EDL v0 @@ -244,6 +254,12 @@ Using multiple segments requires you to specify all offsets and durations (also it was never tested whether it works at all). Interaction with ``mp4_dash`` may be strange. +You can describe multiple sub-tracks by using multiple ``delay_open`` headers +before the same source URL. (If there are multiple sub-tracks of the same media +type, then the mapping to the real stream is probably rather arbitrary.) If the +source contains tracks not described, a warning is logged when the delayed +opening happens, and the track is hidden. + This has the following parameters: ``media_type`` |