Hello,
I used AVPlayer in my project to play network movie.
Most movie could play normally, but I found the sound will disappear sometimes if I play specified 4K video network stream.
The video will continue playing but audio stops after video is played for a while. If I pause player and then resume, the sound will be back but disappeared again after several seconds
Check AVPlayerItem status:
isPlaybackLikelyToKeepUp` == true
isPlaybackBufferEmpty` = false
player.volume > 0
According the value above, it seems not cause by empty playback buffer or volume issue. I am so confused for this situation.
Movie information
Video
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High L5.1
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Bit rate mode : Variable
Bit rate : 100.0 Mb/s
Width : 3 840 pixels
Height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 (30000/1001) FPS
Audio
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : mp4a-40-2
Duration : 5 min 19 s
Bit rate mode : Constant
Bit rate : 192 kb/s
Nominal bit rate : 48.0 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Does anyone know if AVPlayer has this limitations when playing high-bitrate movie streams, and are there any solutions?