PotPlayer将3个声道信息识别为4个是为什么啊？
今天用PotPlayer的播放一段演示片的时候发现演示片里有3个声道，但是PotPlayer却在右下角选择声音的时候给了4个声道，多了一个的(其实这个视频没字幕)，如下图然后我打开文件信息发现只有3个声道啊，用电视机播放的时候也只有3个声道给我选择。
Audio #1
ID : 4352 (0x1100)
Menu ID : 1 (0x1)
Format : AC-3 MLP FBA 16-ch
Format/Info : Audio Coding 3 + Meridian Lossless Packing FBA with 16-channel presentation
Commercial name : Dolby TrueHD with Dolby Atmos
Muxing mode : Stream extension
Codec ID : 131
Duration : 2 min 54 s
Bit rate mode : Variable
Bit rate : 640 kb/s
Maximum bit rate : 7 563 kb/s
Channel(s) : 8 channels
Channel layout : L R C LFE Ls Rs Lb Rb
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Bit depth : 16 bits
Compression mode : Lossy
Stream size : 13.3 MiB (0%)
Service kind : Complete Main
Number of dynamic objects : 15
Bed channel count : 1 channel
Bed channel configuration : LFE
Audio #2
ID : 4353 (0x1101)
Menu ID : 1 (0x1)
Format : E-AC-3 JOC
Format/Info : Enhanced AC-3 with Joint Object Coding
Commercial name : Dolby Digital Plus with Dolby Atmos
Format profile : Blu-ray Disc
Muxing mode : Stream extension
Codec ID : 132
Duration : 2 min 54 s
Bit rate mode : Constant
Bit rate : 1 664 kb/s
Channel(s) : 8 channels
Channel layout : L R C LFE Ls Rs Lb Rb
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Compression mode : Lossy
Stream size : 34.7 MiB (0%)
Service kind : Complete Main
Complexity index : 16
Number of dynamic objects : 15
Bed channel count : 1 channel
Bed channel configuration : LFE
Audio #3
ID : 4354 (0x1102)
Menu ID : 1 (0x1)
Format : AC-3
Format/Info : Audio Coding 3
Commercial name : Dolby Digital
Codec ID : 129
Duration : 2 min 54 s
Bit rate mode : Constant
Bit rate : 640 kb/s
Channel(s) : 6 channels
Channel layout : L R C LFE Ls Rs
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Bit depth : 16 bits
Compression mode : Lossy
Stream size : 13.3 MiB (0%)
Service kind : Complete Main以前好像也遇到过这种情况，当时都没在意，今天想请教一下这个东西是怎么回事？貌似默认选项不是第一个声道是第二个声道，望各位不吝赐教，多谢了。
Since Dolby TrueHD is an optional codec, a companion Dolby Digital bitstream (2.0 192kbit/s or 5.1 448kbit/s/640kbit/s) must accompany the Dolby TrueHD bitstream on Blu-ray discs. Blu-ray Disc players consider this combination of two audio bitstreams as a single logical audio track, and a Blu-ray Disc player will automatically select the Dolby Digital or Dolby TrueHD bitstream depending on its decoding and/or bitstreaming capabilities.
https://en.wikipedia.org/wiki/Dolby_TrueHD#Blu-ray_Disc Jan 发表于 2019-12-30 10:16
Since Dolby TrueHD is an optional codec, a companion Dolby Digital bitstream (2.0 192kbit/s or 5.1 4 ...
多谢，差不多看明白了，顺便吐槽一下这个WIKI条目居然都没中文的。
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