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DLNAmpvRenderer

A script in Python 3 to turn mpv into a DLNA / UPnP renderer

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see https://www.gnu.org/licenses/.

DLNAmpvRenderer is an application written in Python 3 designed as a wrapper for mpv to use the player as a DLNA/UPnP renderer, on a computer running under Windows. The script does not need any other package, only the presence of an executable of mpv is required. The application has been tested with a few DLNA controlers (Windows Media Player Digital Media Controller, Bubble UPnP, UPnPlay, DLNAPlayOn) but should work with any DLNA compliant controler. Subtitles management is enabled through the DIDL description ('subtitlefileuri' or 'captioninfo'/'captioninfoex' tags) or the use of a 'captioninfo.sec' header in the response to the HEAD/GET request for the content to be played. Gapless playback has been tested with DLNAPlayon and Bubble UPnP. Several instances can run in parallel provided they use different ports and names.

To install the application:

To run the application:

DLNAmpvRenderer -h to display the complete syntax of command line and abbreviated commands

DLNAmpvRenderer [-h] [--bind [RENDERER_IP]] [--port RENDERER_TCP_PORT] [--name RENDERER_NAME] [--minimize] [--fullscreen] [--wmpdmc_no_mkv] [--trust_controler] [--search_subtitles] [--gapless [p]] [--verbosity VERBOSE]

--bind RENDERER_IP: the ip address used by the renderer on the local machine for communications with the controllers (to set it manually if the script does not manage to self-determine the ip address of the host or to select a specific network interface or all interfaces if no address is provided)
--port RENDERER_TCP_PORT: the port used by the renderer on the local machine sent to the controlers in the advertisements and the answers to the search requests
--name RENDERER_NAME: the name of the renderer, used to generate the uuid
--minimize: when set, minimizes the window of mpv when inactive and restore it to its previous size when a playback is launched (useful when displaying photos as some controlers stop the playback between two consecutive pictures or when playing music as there is no use showing the window)
--fullscreen: when set, makes mpv go fullscreen each time a playback starts (can be combined with 'minimize')
--wmpdmc_no_mkv: when set, Windows Media Player Digital Media Controller will transcode 'mkv' (matroska) files to 'mpegts' before streaming the content, allowing remote control of the playback, otherwise, the 'mkv' file will be streamed as it is, and the seekbar will probably be inactive in WMPDMC (but available in mpv)
--trust_controler: when set, the URL of the content sent to the renderer is not checked before being passed to mpv, which will not work if the server throws errors at range requests (as some DLNA servers do)
--search_subtitles: when set, always requests subtitles, trying different extensions if no subtitle uri is provided by the controler or the server (may slow down the process)
--gapless: when set, enables gapless playback (but compatibility with controlers supporting this feature is not ensured as it is not standardized) but disables playlist loading in mpv - if the access to the media contents has latency, it may be necessary to use the "prefetch-playlist" option (by either specifying "p" after the argument, or adding "--prefetch-playlist=yes" to mpv.bat or "prefetch-list=yes" in mpv.conf as explained below) which is experimental and might make mpv malfunction according to the manual
--verbosity VERBOSE: for troubleshooting purposes, from 0 (default) to 2

Example: DLNAmpvRenderer -p 9100 -m -f -g p

As for the settings of the firewall, mpv needs outgoing TCP connections allowed, and python outgoing TCP and UDP connections, as well as incoming TCP connections from local network on local port RENDERER_TCP_PORT (as in command line), incoming UDP connections from local network on local port 1900.

mpv can be configured either from the command line in mpv.bat (but do not remove the --input-ipc-server or there will be no way for the script to control mpv through a named pipe, and it is better not to remove also --idle=yes and --image-display-duration=inf) or in %APPDATA%\mpv\mpv.conf and %APPDATA%\mpv\input.conf (it will affect any playback with mpv beyond the use as a DLNA Renderer). An online manual is available at https://mpv.io/manual/master/.

Example of mpv.conf (change XXXX):
[default]
vd-lavc-threads=12
priority=high
index=default
screenshot-template=cap_%F_%p_%02n
screenshot-format=jpg
screenshot-directory=C:\Users\XXXX\Downloads
sub-auto=fuzzy
vo=gpu
gpu-api=d3d11
gpu-context=d3d11
hwdec=d3d11va
gpu-hwdec-interop=d3d11va
hwdec-codecs=all
vd=libdav1d
profile=gpu-hq
interpolation
video-sync=display-resample
tscale=mitchell
tscale-clamp=1
scale=ewa_lanczossharp
dscale=ewa_lanczossharp
cscale=ewa_lanczossharp
dither-depth=8
hdr-compute-peak=no
audio-pitch-correction=yes
volume=90
volume-max=100
ontop=yes

Example of input.conf:
ctrl+d osd-msg vf toggle d3d11vpp=deint=yes:interlaced-only=no:mode=adaptive