Thanks for the detailed info, I will look into the issue. BTW can you try other vaapi based tools, such as yamitranscode?
Thanks Haihao >-----Original Message----- >From: Mark Thompson [mailto:s...@jkqxz.net] >Sent: Friday, January 13, 2017 6:11 AM >To: libva@lists.freedesktop.org; Xiang, Haihao <haihao.xi...@intel.com> >Subject: Re: [Libva] [PATCH 2/4] Set the pipeline to use the new VP8 encoding >shaders on BSW > >On 12/01/17 07:30, Xiang, Haihao wrote: >> >> Hi Mark, >> >> Can you reproduce the issue you mentioned below? If yes, I would like >> to fix it in the new version of the patch series. > >Hi, > >Yes, I can reproduce it consistently on both Skylake and Kaby Lake. Some >detailed instructions follow... > > >Get standard test input: ><http://distribution.bbb3d.renderfarming.net/video/mp4/bbb_sunflower_10 >80p_60fps_normal.mp4>. (The input file does matter somewhat: I tried some >others and found it harder to reproduce. Maybe the highly variable >complexity here helps to show the problem.) > >Get current libav from git: <git://git.libav.org/libav.git>. > >Apply patches adding framerate configuration and VP8 encode support to >libav: <http://ixia.jkqxz.net/~mrt/libva/vp8/0001-vaapi_encode-Pass- >framerate-parameters-to-driver.patch>, ><http://ixia.jkqxz.net/~mrt/libva/vp8/0002-vaapi_encode-Add-VP8- >support.patch>. > >Configure libav with --enable-vaapi and build. > > >Now run a transcode from the H.264 of the input file to VP8. What happens >varies with the bitrate selected (this is now on Skylake GT2, 6300): > > >./avconv -y -threads 1 -vaapi_device /dev/dri/renderD128 -hwaccel vaapi - >hwaccel_output_format vaapi -i bbb_sunflower_1080p_60fps_normal.mp4 - >an -c:v vp8_vaapi -r 60 -b:v 5M out.webm > >(CBR at 5Mbps) Everything works and the output looks good: yay! (This is an >immense improvement over the current driver - if you run the same >command there, the output is working but terrible quality.) > > >./avconv -y -threads 1 -vaapi_device /dev/dri/renderD128 -hwaccel vaapi - >hwaccel_output_format vaapi -i bbb_sunflower_1080p_60fps_normal.mp4 - >an -c:v vp8_vaapi -r 60 -b:v 5M out.webm > >(CBR at 2Mbps) Mostly works, but the output is broken at times and the >bitrate target is often missed by a long way. > > >./avconv -y -threads 1 -vaapi_device /dev/dri/renderD128 -hwaccel vaapi - >hwaccel_output_format vaapi -i bbb_sunflower_1080p_60fps_normal.mp4 - >an -c:v vp8_vaapi -r 60 -b:v 1M out.webm > >(CBR at 1Mbps) Consistently hangs at around frame 570. > > >[1321697.079583] drm/i915: Resetting chip after gpu hang [1321697.081571] >[drm] GuC firmware load skipped [1321699.063831] [drm] RC6 on > >/sys/class/drm/card0/error for one case: ><http://ixia.jkqxz.net/~mrt/libva/vp8/sys_class_drm_card0_error>. > >Backtrace of userspace at the hang point: > >#0 0x00007ffff6351cc7 in ioctl () at ../sysdeps/unix/syscall-template.S:84 >#1 0x00007ffff5821708 in drmIoctl () from /usr/lib/x86_64-linux- >gnu/libdrm.so.2 >#2 0x00007ffff48e3e00 in ?? () from /usr/lib/x86_64-linux- >gnu/libdrm_intel.so.1 >#3 0x00007ffff48e4036 in ?? () from /usr/lib/x86_64-linux- >gnu/libdrm_intel.so.1 >#4 0x00007ffff4bded57 in intel_batchbuffer_flush (batch=0x555556c03240) >at ../../src/intel_batchbuffer.c:147 >#5 0x00007ffff4b9c821 in i965_run_kernel_media_object >(ctx=0x555556ad15b0, encoder_context=0x555556bfff10, >gpe_context=0x555556b6da38, media_function=11, param=0x7fffffffd5f0) >at ../../src/i965_encoder_vp8.c:2174 >#6 0x00007ffff4baa044 in i965_encoder_vp8_pak_tpu (ctx=0x555556ad15b0, >encode_state=0x555556ae5cd0, encoder_context=0x555556bfff10) >at ../../src/i965_encoder_vp8.c:6503 >#7 0x00007ffff4baa5a7 in i965_encoder_vp8_pak_pipeline >(ctx=0x555556ad15b0, profile=VAProfileVP8Version0_3, >encode_state=0x555556ae5cd0, encoder_context=0x555556bfff10) >at ../../src/i965_encoder_vp8.c:6620 >#8 0x00007ffff4b988b3 in intel_encoder_end_picture (ctx=0x555556ad15b0, >profile=VAProfileVP8Version0_3, codec_state=0x555556ae5cd0, >hw_context=0x555556bfff10) at ../../src/i965_encoder.c:1313 >#9 0x00007ffff4b8aa23 in i965_EndPicture (ctx=0x555556ad15b0, >context=33554433) at ../../src/i965_drv_video.c:3588 >#10 0x00007ffff76744ca in vaEndPicture (dpy=0x555556ad1540, >context=33554433) at ../../git/va/va.c:1285 >#11 0x0000555555df76d8 in vaapi_encode_issue (avctx=0x555556b5f100, >pic=0x555556c64d20) at >/home/mrt/video/libav/vp8/libavcodec/vaapi_encode.c:387 >#12 0x0000555555df7f29 in vaapi_encode_step (avctx=0x555556b5f100, >target=0x555556c64d20) at >/home/mrt/video/libav/vp8/libavcodec/vaapi_encode.c:608 >#13 0x0000555555df8be9 in ff_vaapi_encode2 (avctx=0x555556b5f100, >pkt=0x555556b19380, input_image=0x555556b188c0, >got_packet=0x7fffffffdcfc) at >/home/mrt/video/libav/vp8/libavcodec/vaapi_encode.c:895 >#14 0x00005555557a409b in avcodec_encode_video2 (avctx=0x555556b5f100, >avpkt=0x555556b19380, frame=0x555556b188c0, >got_packet_ptr=0x7fffffffdcfc) at >/home/mrt/video/libav/vp8/libavcodec/encode.c:231 >#15 0x00005555557a4280 in do_encode (avctx=0x555556b5f100, >frame=0x555556b188c0, got_packet=0x7fffffffdcfc) at >/home/mrt/video/libav/vp8/libavcodec/encode.c:278 >#16 0x00005555557a444a in avcodec_send_frame (avctx=0x555556b5f100, >frame=0x555556b188c0) at >/home/mrt/video/libav/vp8/libavcodec/encode.c:327 >#17 0x00005555555c3c5c in do_video_out (of=0x555556c61ba0, >ost=0x555556c61680, in_picture=0x555556b188c0, frame_size=0x7fffffffe1cc) >at /home/mrt/video/libav/vp8/avconv.c:579 >#18 0x00005555555c43ce in poll_filter (ost=0x555556c61680) at >/home/mrt/video/libav/vp8/avconv.c:718 >#19 0x00005555555c4753 in poll_filters () at >/home/mrt/video/libav/vp8/avconv.c:792 >#20 0x00005555555cab23 in transcode () at >/home/mrt/video/libav/vp8/avconv.c:2730 >#21 0x00005555555cb063 in main (argc=20, argv=0x7fffffffe438) at >/home/mrt/video/libav/vp8/avconv.c:2898 > > >avconv there also supports CQP mode as well as CBR (pass "-qindex N" for N >between 0 and 127 instead of the "-b:v M" above): this is always fine for me. > >Can you reproduce a hang with that? Is there any other information I can >provide to help? > >Thanks, > >- Mark > > >>>> On Tue, Jan 10, 2017 at 4:21 PM, Mark Thompson <s...@jkqxz.net> wrote: >>>>> On 10/01/17 22:02, Sean V Kelley wrote: >>>>>> From: "Xiang, Haihao" <haihao.xi...@intel.com> >>>>>> >>>>>> Currently only one temporal layer is supported >>>>>> >>>>>> Signed-off-by: Xiang, Haihao <haihao.xi...@intel.com> >>>>>> Reviewed-by: Sean V Kelley <sea...@posteo.de> >>>>>> --- >>>>>> src/Makefile.am | 3 + >>>>>> src/gen8_encoder_vp8.c | 140 + >>>>>> src/gen8_mfc.c | 8 +- >>>>>> src/gen8_vme.c | 5 + >>>>>> src/i965_defines.h | 10 + >>>>>> src/i965_encoder.c | 2 + >>>>>> src/i965_encoder_vp8.c | 6697 >>>>> ++++++++++++++++++++++++++++++++++++++++++++++++ >>>>>> src/i965_encoder_vp8.h | 2643 +++++++++++++++++++ >>>>>> 8 files changed, 9507 insertions(+), 1 deletion(-) >>>>> >>>>> I had a go with this on Kaby Lake. In general, big win - looks >>>>> like it can be under half the bitrate at comparable quality (though >>>>> it was pretty terrible before...). >>>>> >>>>> However, the rate control seems to do odd things at low bitrate >>>>> relative to the frame size? I can get GPU hangs and wildly varying >>>>> output bitrate with it, though it seems ok at high bitrate. >>>> That's a concern. Please report the If it really is a GPU hang, I >>>> need the error report for the DRM card0 log. >>>> >>>> cat /sys/class/drm/card0/error >>>> >>>> Please rerun and capture the DRM (i915) card0 error log. >>>> >>>>> >>>>> I had a look around the rate control and found two minor issues in >>>>> the RC configuration, though I don't think either of them are >>>>> relevant to my problem (see below). I can try to make a reproducer >>>>> if this is not already known? >>>>> >>>> Please do attempt to reproduce. That's why I've put the patches out >>>> here to test. >>> >>> Thanks for testing the patch, could you detail the steps to reproduce >>> this issue? >>> >>> >>>> >>>> Thanks, >>>> >>>> Sean >>>> >>>>> Thanks, >>>>> >>>>> - Mark >>>>> _______________________________________________ Libva mailing list Libva@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/libva
