Howto Enable Intel Quick Sync H.264 GPU Encoding ?

[edf]

To capture a single raw video, stream output to multicast address and display locally:

vlc -vvv dshow:// --dshow-vdev="Video FC1" --dshow-adev=none --live-caching=0 --sout=#transcode{vcodec=h264,venc=qsv,scale=Auto,acodec=none}:duplicate{dst=rtp{dst=239.0.0.10,port=5004,mux=ts},dst=display} --sout-keep

messages: (subset)
avcodec warning: More than 4 late frames, dropping frame
core warning: late buffer for mux input (1713244)
core warning: late buffer for mux input (1713877)
avcodec warning: More than 4 late frames, dropping frame
core warning: late buffer for mux input (1718511)
core warning: late buffer for mux input (1713144)
avcodec warning: More than 4 late frames, dropping frame
avcodec error: more than 5 seconds of late video -> dropping frame (computer too slow ?)

modules tree: (subset)
encoder "x264" (0x4c7de9c)

observed:
window frozen on local screen
clients are slow and poor quality



vlc -vvv dshow:// --dshow-vdev="Video FC1" --dshow-adev=none --live-caching=0 --sout=#transcode{venc=qsv{vcodec=h264},scale=Auto,acodec=none}:duplicate{dst=rtp{dst=239.0.0.10,port=5004,mux=ts},dst=display} --sout-keep


messages:
core debug: VLC media player - 2.2.1 Terry Pratchett (Weatherwax)
core debug: Copyright © 1996-2015 the VideoLAN team
core debug: revision 2.2.1-0-ga425c42
core debug: configured with ../extras/package/win32/../../../configure '--enable-update-check' '--enable-lua' '--enable-faad' '--enable-flac' '--enable-theora' '--enable-twolame' '--enable-quicktime' '--enable-avcodec' '--enable-merge-ffmpeg' '--enable-dca' '--enable-mpc' '--enable-libass' '--enable-x264' '--enable-schroedinger' '--enable-realrtsp' '--enable-live555' '--enable-dvdread' '--enable-shout' '--enable-goom' '--enable-caca' '--disable-sdl' '--enable-qt' '--enable-skins2' '--enable-sse' '--enable-mmx' '--enable-libcddb' '--enable-zvbi' '--disable-telx' '--enable-nls' '--host=i686-w64-mingw32' '--disable-debug' 'host_alias=i686-w64-mingw32'
core error: ES_OUT_SET_(GROUP_)PCR is called too late (pts_delay increased to 2 ms)
core error: ES_OUT_RESET_PCR called
rawvideo warning: invalid frame size (128
core debug: Buffering 0%
core debug: Stream buffering done (33 ms in 34 ms)
core debug: Decoder wait done in 0 ms
core debug: picture might be displayed late (missing 7 ms)
core debug: auto hiding mouse cursor
core debug: auto hiding mouse cursor

modules tree: (subset)
encoder (0x2b4bd34)
generic (0x2b4b9ec)


observed:
window on local screen works well
no network stream

[Jean-Baptiste Kempf]

I believe dshow is borken in 2.2.1

[joshi42]

I have trouble transcoding live UDP stream on Windows 8.1 with VLC 2.2.1 installed:

Code: Select all

vlc -I dummy udp://@224.0.16.23:16023 --sout #transcode{threads=4,width=720,height=576,fps=25,vcodec=h264,vb=2048,venc=qsv{h264-profile=high,level=42},acodec=mpga,ab=96,channels=2}:duplicate{dst=std{select={es=0,es=2},access=udp,mux=ts,dst=239.1.1.1:1111}}

Error message is:

Code: Select all

[02a5bb04] qsv encoder error: Framerate and picture dimensions must be non-zero

Incoming stream is played by VLC fine otherwise without any error messages.

Thanks in advance for any help.

[joshi42]

I tried it on file sources to the same effect. MSDK is installed, Handbrake QSV encoder and other QSV software works fine on that PC. CPU is i7 3370K.

[joshi42]

It feels like monologue, but I'll continue anyway.

Following string seems to work, but it outputs MPEG2 instead of H.264:

Code: Select all

vlc -I dummy udp://@224.0.16.23:16023 --http-host=94.137.191.158 --sout #transcode{venc=qsv{vcodec=h264},width=352,height=288,acodec=mpga,ab=192,channels=2}:duplicate{dst=std{access=http,mux=ts,dst=94.137.191.158:1111}}

[korsanovix]

I still can't let the venc=qsv work with VLC versions above 2.1.3
After 2.1.3 I get always this error: "qsv error: Framerate and picture dimensions must be non-zero"