I recently installed Potplayer v1.6.62949 and noticed that some files have their audio absent. I cycled through the audio codecs installed in Potplayer: Built-in FFmpeg, System MFT, OpenCodecUnity64(libFAAD2), OpenCodecUnity64(FDK), FFmpeg64.dll, but none of them fixed the audio. The audio works fine in VLC player and Media Player Classic so there doesn't seem to be a problem with the files. Here is the file and playback information for two files that have no audio:
File 1
General
Complete name : C:\Users\Int\Desktop\File A022.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom (isom/iso2/avc1/mp41)
File size : 433 MiB
Duration : 23 min
Overall bit rate mode : Variable
Overall bit rate : 2 534 kb/s
Video
ID : 2
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Baseline@L3.1
Format settings, CABAC : No
Format settings, ReFrames : 3 frames
Format settings, GOP : M=1, N=89
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 23 min
Duration_FirstFrame : 33 ms
Bit rate : 2 400 kb/s
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 (30000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.087
Stream size : 410 MiB (95%)
Writing library : x264 core 148
Encoding settings : cabac=0 / ref=3 / deblock=1:0:0 / analyse=0x1:0x111 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=22 / lookahead_threads=3 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=0 / weightp=0 / keyint=89 / keyint_min=8 / scenecut=0 / intra_refresh=0 / rc_lookahead=40 / rc=abr / mbtree=1 / bitrate=2400 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
mdhd_Duration : 1433732
Audio
ID : 1
Format : AAC
Format/Info : Advanced Audio Codec
Codec ID : 40
Duration : 23 min
Bit rate mode : Variable
Bit rate : 128 kb/s
Channel(s) : 2 channels
Sampling rate : 44.1 kHz
Frame rate : 43.066 FPS (1024 spf)
Compression mode : Lossy
Stream size : 21.9 MiB (5%)
File 2
General
Complete name : C:\Users\Int\Desktop\File B845.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom (isom/iso2/avc1/mp41)
File size : 530 MiB
Duration : 29 min
Overall bit rate mode : Variable
Overall bit rate : 2 536 kb/s
Video
ID : 2
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Baseline@L3.1
Format settings, CABAC : No
Format settings, ReFrames : 3 frames
Format settings, GOP : M=1, N=89
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 29 min
Duration_FirstFrame : 33 ms
Bit rate : 2 400 kb/s
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 (30000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.087
Stream size : 502 MiB (95%)
Writing library : x264 core 148
Encoding settings : cabac=0 / ref=3 / deblock=1:0:0 / analyse=0x1:0x111 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=22 / lookahead_threads=3 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=0 / weightp=0 / keyint=89 / keyint_min=8 / scenecut=0 / intra_refresh=0 / rc_lookahead=40 / rc=abr / mbtree=1 / bitrate=2400 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
mdhd_Duration : 1754152
Audio
ID : 1
Format : AAC
Format/Info : Advanced Audio Codec
Codec ID : 40
Duration : 29 min
Bit rate mode : Variable
Bit rate : 128 kb/s
Channel(s) : 2 channels
Sampling rate : 44.1 kHz
Frame rate : 43.066 FPS (1024 spf)
Compression mode : Lossy
Stream size : 26.8 MiB (5%)
mdhd_Duration : 1754221
Any suggestions would be greatly appreciated.
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