Posted to this forum as it seems to have most 4:2:2 discussions, but mods please move as appropriate.
I am wondering if anyone else has seen the VLC behaviour below?
I watch 422 feeds by streaming from various Enigma 2 receivers' web interfaces to VLC on a Linux PC.
PC is an AMD A10-7860K Radeon R7 processor, 1Gb Ethernet running Gentoo (so nearly infinitely customisable
)
420 transmissions use the onboard VDPAU hardware decoding in VLC, so < 50% of 1 core for 1080p. However, 422 transmissions fall back to software decoding using about "150% CPU", i.e. 1.5 cores.
VLC debug logs show an attempt to use VDPAU and then:
avcodec decoder debug: available software decoder output format 4 (yuv422p)
avcodec decoder error: existing hardware acceleration cannot be reused
Googling has not produced a solution.
If I stream using mplayer, it uses VDPAU with ~62% of one core. This requires a few more manual steps.
Interestingly, running Ubuntu on the same hardware produces identical results.
Seems like a VLC bug or "limitation" to me. Anyone else notice this?
I am wondering if anyone else has seen the VLC behaviour below?
I watch 422 feeds by streaming from various Enigma 2 receivers' web interfaces to VLC on a Linux PC.
PC is an AMD A10-7860K Radeon R7 processor, 1Gb Ethernet running Gentoo (so nearly infinitely customisable
)420 transmissions use the onboard VDPAU hardware decoding in VLC, so < 50% of 1 core for 1080p. However, 422 transmissions fall back to software decoding using about "150% CPU", i.e. 1.5 cores.
VLC debug logs show an attempt to use VDPAU and then:
avcodec decoder debug: available software decoder output format 4 (yuv422p)
avcodec decoder error: existing hardware acceleration cannot be reused
Googling has not produced a solution.
If I stream using mplayer, it uses VDPAU with ~62% of one core. This requires a few more manual steps.
Interestingly, running Ubuntu on the same hardware produces identical results.
Seems like a VLC bug or "limitation" to me. Anyone else notice this?