I have packaged the HDR10Plus content with the latest bento4, but the playback was not working.
As per observation in the m3u8 file, the VIDEO-RANGE tag is coming as SDR instead of PQ.

 Bento4 Command line :
```
./bento4/bin/mp4dash --
encryption-key=bbbbbbdc4b704b2eb610682bb8222222:aaaaaa5627905cfd341fce15bc222222:894b570bfc4525fae2fbbfdf77ccc111
--fairplay-key-uri=skd://abc --encryption-cenc-scheme=cbcs --hls hdr10plusfrag.mp4 --hls-master-playlist-name=index.m3u8 --output-dir=./output
``` 
----
M3U8 File:

```
#EXTM3U
# Created with Bento4 mp4-dash.py, VERSION=2.0.0-641
#
#EXT-X-VERSION:6

# Media Playlists

# Audio
#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="audio/ec-3",LANGUAGE="de",NAME="Deutsch",AUTOSELECT=YES,DEFAULT=YES,CHANNELS="16/JOC",URI="audio/de/ec-3/media.m3u8"
#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="audio/mp4a.40.2",LANGUAGE="en",NAME="English",AUTOSELECT=YES,DEFAULT=YES,CHANNELS="2",URI="audio/ta/mp4a.40.2/media.m3u8"

# Video
#EXT-X-STREAM-INF:AUDIO="audio/ec-3",AVERAGE-BANDWIDTH=735846,BANDWIDTH=803514,VIDEO-RANGE=SDR,CODECS="hvc1.2.4.L90.b0,ec-3",RESOLUTION=640x360,FRAME-RATE=25.000
video/hvc1/1/media.m3u8
#EXT-X-STREAM-INF:AUDIO="audio/mp4a.40.2",AVERAGE-BANDWIDTH=416348,BANDWIDTH=484500,VIDEO-RANGE=SDR,CODECS="hvc1.2.4.L90.b0,mp4a.40.2",RESOLUTION=640x360,FRAME-RATE=25.000
video/hvc1/1/media.m3u8
#EXT-X-STREAM-INF:AUDIO="audio/ec-3",AVERAGE-BANDWIDTH=1000479,BANDWIDTH=1145396,VIDEO-RANGE=SDR,CODECS="hvc1.2.4.L90.b0,ec-3",RESOLUTION=768x432,FRAME-RATE=25.000
video/hvc1/2/media.m3u8
#EXT-X-STREAM-INF:AUDIO="audio/mp4a.40.2",AVERAGE-BANDWIDTH=680981,BANDWIDTH=826382,VIDEO-RANGE=SDR,CODECS="hvc1.2.4.L90.b0,mp4a.40.2",RESOLUTION=768x432,FRAME-RATE=25.000
```
Could you please fix this issue in the upcoming version? 

HDR10Plus signaling issue
This is a GitHub Issue
repo:Bento4
owner:axiomatic-systems
Title : HDR10Plus signaling issue
Issue date:

--- start body ---
I have packaged the HDR10Plus content with the latest bento4, but the playback was not working.
As per observation in the m3u8 file, the VIDEO-RANGE tag is coming as SDR instead of PQ.

 Bento4 Command line :
```
./bento4/bin/mp4dash --
encryption-key=bbbbbbdc4b704b2eb610682bb8222222:aaaaaa5627905cfd341fce15bc222222:894b570bfc4525fae2fbbfdf77ccc111
--fairplay-key-uri=skd://abc --encryption-cenc-scheme=cbcs --hls hdr10plusfrag.mp4 --hls-master-playlist-name=index.m3u8 --output-dir=./output
``` 
----
M3U8 File:

```
#EXTM3U
# Created with Bento4 mp4-dash.py, VERSION=2.0.0-641
#
#EXT-X-VERSION:6

# Media Playlists

# Audio
#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="audio/ec-3",LANGUAGE="de",NAME="Deutsch",AUTOSELECT=YES,DEFAULT=YES,CHANNELS="16/JOC",URI="audio/de/ec-3/media.m3u8"
#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="audio/mp4a.40.2",LANGUAGE="en",NAME="English",AUTOSELECT=YES,DEFAULT=YES,CHANNELS="2",URI="audio/ta/mp4a.40.2/media.m3u8"

# Video
#EXT-X-STREAM-INF:AUDIO="audio/ec-3",AVERAGE-BANDWIDTH=735846,BANDWIDTH=803514,VIDEO-RANGE=SDR,CODECS="hvc1.2.4.L90.b0,ec-3",RESOLUTION=640x360,FRAME-RATE=25.000
video/hvc1/1/media.m3u8
#EXT-X-STREAM-INF:AUDIO="audio/mp4a.40.2",AVERAGE-BANDWIDTH=416348,BANDWIDTH=484500,VIDEO-RANGE=SDR,CODECS="hvc1.2.4.L90.b0,mp4a.40.2",RESOLUTION=640x360,FRAME-RATE=25.000
video/hvc1/1/media.m3u8
#EXT-X-STREAM-INF:AUDIO="audio/ec-3",AVERAGE-BANDWIDTH=1000479,BANDWIDTH=1145396,VIDEO-RANGE=SDR,CODECS="hvc1.2.4.L90.b0,ec-3",RESOLUTION=768x432,FRAME-RATE=25.000
video/hvc1/2/media.m3u8
#EXT-X-STREAM-INF:AUDIO="audio/mp4a.40.2",AVERAGE-BANDWIDTH=680981,BANDWIDTH=826382,VIDEO-RANGE=SDR,CODECS="hvc1.2.4.L90.b0,mp4a.40.2",RESOLUTION=768x432,FRAME-RATE=25.000
```
Could you please fix this issue in the upcoming version? 

--- end body ---
