三方APP分享电影模式拍摄的杜比视界视频，视频色彩信息错误
使用微信、LocalSend等三方App分享电影模式拍摄的杜比视界HDR视频到其他设备上后发现，分享的视频经过了转码，并且视频的VUI色彩信息错误，杜比视界Profile8-4视频本应为Limited的Range变成了Full。
这是
这是通过iTunes导出的视频的#1视频轨道元数据（通过MediaInfo读取）：
Video #1
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L4@Main
HDR format : Dolby Vision, Version 1.0, Profile 8.4, dvhe.08.04, BL+RPU, no metadata compression, HLG compatible
Codec ID : hvc1
Codec ID/Info : High Efficiency Video Coding
Duration : 4 s 667 ms
Bit rate : 7 662 kb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Rotation : 90°
Frame rate mode : Constant
Frame rate : 30.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.123
Stream size : 4.26 MiB (91%)
Title : Core Media Video
Encoded date : 2024-11-19 01:45:43 UTC
Tagged date : 2024-11-19 01:45:48 UTC
Color range : Limited
Color primaries : BT.2020
Transfer characteristics : HLG
Matrix coefficients : BT.2020 non-constant
Metas : 4
Codec configuration box : hvcC+dvvC
这是通过app分享到其他设备后的元数据：
Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L4.1@Main
HDR format : Dolby Vision, Version 1.0, Profile 8.4, dvhe.08.04, BL+RPU, no metadata compression, HLG compatible
Codec ID : hvc1
Codec ID/Info : High Efficiency Video Coding
Duration : 4 s 667 ms
Bit rate : 7 793 kb/s
Width : 1 920 pixels
Clean aperture width : 1 920 pixels
Height : 1 080 pixels
Clean aperture height : 1 080 pixels
Display aspect ratio : 16:9
Rotation : 90°
Frame rate mode : Constant
Frame rate : 30.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.125
Stream size : 4.34 MiB (98%)
Title : Core Media Video
Encoded date : 2024-11-19 01:46:20 UTC
Tagged date : 2024-11-19 01:46:22 UTC
Color range : Full
Color primaries : BT.2020
Transfer characteristics : HLG
Matrix coefficients : BT.2020 non-constant
Codec configuration box : hvcC+dvvC
iPhone 15
