>>107089231
>>107090747
pic related is such a 10bit h.264 example. i don't know of any hardware decoders that support this.
also important to note that this doesn't mean your hardware can't decoder 10bit in general, H.265 decoders often support 10bit decoding, as it was more of a standard/early feature in H.265, being an important part of supporting HDR, which is before H.264's heyday