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You can also use more advanced setups like Plex.TV.īut if you want to use your PS4, you will have to re-encode the video to a supported codec (H.264 aka. If you have a Chromecast, you can simply skip the PS in your setup and stream your files directly from your computer to your TV with the free Videostream for Chromecast app that plays all video types - new and old. Those will have to be supported by your device. Stream 0 codec is (normally) the video codec, and Stream 1 is the audio.
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You can always check the video codec by loading the problematic MKV or MP4 file in VLC media player and then press Ctrl+J. PS4 doesn't support the newest video codecs, AV1, H.265 (aka. It's without doubt the video codec (encoding method) that isn't supported by your PlayStation.
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