Also, one question to the OP: What version/variant of the Media SDK did you use to build FFmpeg? Is it the one issued in the licensed Media SDK or the opensource iMSDK (see https://github.com/Intel-Media-SDK/MediaSDK)?
Either way, you may need to insert a hwupload filter into the video filters with a fixed frame pool size, as shown below: ffmpeg -hwaccel qsv -vcodec h264_qsv -i input-file -acodec aac -ac 2 -b:a 48k -vcodec h264_qsv -b:v 2000k -vf "hwupload=extra_hw_frames=10,scale_qsv=960:720" -g 25 -r 25.0 -f flv output-file Should that bring you any issues (such as a fallback to software-based encoding), you may also pick up the h/w device for qsv as shown below: ffmpeg -init_hw_device qsv=qsv:MFX_IMPL_hw_any -hwaccel qsv -filter_hw_device qsv -vcodec h264_qsv -i input-file -acodec aac -ac 2 -b:a 48k -vcodec h264_qsv -b:v 2000k -vf "hwupload=extra_hw_frames=10,scale_qsv=960:720" -g 25 -r 25.0 -f flv output-file See that with the second command: (a). We initialize a hwaccel device named qsv, picking the IMPL_hw_any qsv platform device, and (b). Specify that we want to use that device for both hwaccel (-hwaccel qsv) and for the video filter chain (-filter_hw_device qsv). (c). The extra_hw_frames=n option is used to set an initial pool size. If it's feeding into a scaler, then probably 2 or 3 frames are sufficient, but if it's feeding into an encoder with look-ahead enabled (LA-BRC with target usage equivalent of 1), then you might need over 100. As such, it's currently under user control. Test and report back. On 20 June 2018 at 08:40, Li, Zhong <zhong...@intel.com> wrote: > Looks like qsv transcoding on system memory is broken. > Would you please create a ticket on https://trac.ffmpeg.org/? > > And for you case, switching to full hardware path is benefit to > performance. > Try: ffmpeg -hwaccel qsv -vcodec h264_qsv -i input-file -acodec aac -ac 2 > -b:a 48k -vcodec h264_qsv -b:v 2000k -vf " scale_qsv=960:720" -g 25 -r 25.0 > -f flv output-file > > > > -----Original Message----- > > From: ffmpeg-user [mailto:ffmpeg-user-boun...@ffmpeg.org] On Behalf Of > > qw > > Sent: Wednesday, June 20, 2018 10:17 AM > > To: FFmpeg user questions <ffmpeg-user@ffmpeg.org> > > Subject: Re: [FFmpeg-user] how to use Intel qsv codec for ffmpeg 4.0 > > > > Hi, > > > > > > I use the following ffmpeg command, and it's ok for ffmpeg 3.4.1. > > > > > > /usr/local/bin/ffmpeg -vcodec h264_qsv -i input-file -acodec aac -ac 2 > -b:a > > 48k -vcodec h264_qsv -b:v 2000k -vf "scale=960:720" -g 25 -r 25.0 -f flv > > output-file > > > > > > But the command fails for ffmpeg 4.0. The error message is shown as > below: > > > > > > ffmpeg version 4.0 Copyright (c) 2000-2018 the FFmpeg developers > > built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-16) > > configuration: --prefix=/usr/local --enable-nonfree --enable-static > > --enable-libmfx --enable-gpl > > libavutil 56. 14.100 / 56. 14.100 > > libavcodec 58. 18.100 / 58. 18.100 > > libavformat 58. 12.100 / 58. 12.100 > > libavdevice 58. 3.100 / 58. 3.100 > > libavfilter 7. 16.100 / 7. 16.100 > > libswscale 5. 1.100 / 5. 1.100 > > libswresample 3. 1.100 / 3. 1.100 > > libpostproc 55. 1.100 / 55. 1.100 > > Input #0, flv, from './1.flv': > > Metadata: > > jd-6cn-test : hello jdcloud > > hasMetadata : true > > hasVideo : true > > hasAudio : true > > lasttimestamp : 33 > > lastkeyframetimestamp: 33 > > videosize : 8229939 > > audiosize : 526094 > > datasize : 848 > > metadatacreator : flvmeta 1.2.1 > > audiodelay : 0 > > canSeekToEnd : true > > hasCuePoints : false > > hasKeyframes : true > > Duration: 00:00:32.60, start: 0.040000, bitrate: 2151 kb/s > > Stream #0:0: Video: h264 (High), yuv420p(tv, bt709, progressive), > > 1920x1080 [SAR 1:1 DAR 16:9], 2017 kb/s, 25 fps, 25 tbr, 1k tbn, 50 tbc > > Stream #0:1: Audio: aac (LC), 44100 Hz, stereo, fltp, 124 kb/s File > > './ffmpeg_qsv_transcoder_1.flv' already exists. Overwrite ? [y/N] y > Stream > > mapping: > > Stream #0:0 -> #0:0 (h264 (h264_qsv) -> h264 (h264_qsv)) > > Stream #0:1 -> #0:1 (aac (native) -> aac (native)) Press [q] to stop, > [?] for > > help [h264_qsv @ 0x2032e80] Error initializing the MFX video decoder: not > > initialized (-8) Error while decoding stream #0:0: Internal bug, should > not > > have happened [h264_qsv @ 0x2032e80] Error initializing the MFX video > > decoder: not initialized (-8) Error while decoding stream #0:0: Internal > bug, > > should not have happened [h264_qsv @ 0x2032e80] Error initializing the > > MFX video decoder: not initialized (-8) Error while decoding stream #0:0: > > Internal bug, should not have happened [h264_qsv @ 0x2032e80] Error > > initializing the MFX video decoder: not initialized (-8) Error while > decoding > > stream #0:0: Internal bug, should not have happened [h264_qsv @ > > 0x2032e80] Error initializing the MFX video decoder: not initialized > (-8) Error > > while decoding stream #0:0: Internal bug, should not have happened > > [h264_qsv @ 0x2032e80] Error initializing the MFX video decoder: not > > initialized (-8) Error while decoding stream #0:0: Internal bug, should > not > > have happened [h264_qsv @ 0x2032e80] Error initializing the MFX video > > decoder: not initialized (-8) Error while decoding stream #0:0: Internal > bug, > > should not have happened [h264_qsv @ 0x2032e80] Error initializing the > > MFX video decoder: not initialized (-8) Error while decoding stream #0:0: > > Internal bug, should not have happened [h264_qsv @ 0x2032e80] Error > > initializing the MFX video decoder: not initialized (-8) Error while > decoding > > stream #0:0: Internal bug, should not have happened [h264_qsv @ > > 0x2032e80] Error initializing the MFX video decoder: not initialized > (-8) Error > > while decoding stream #0:0: Internal bug, should not have happened > > [h264_qsv @ 0x2032e80] Error initializing the MFX video decoder: not > > initialized (-8) Error while decoding stream #0:0: Internal bug, should > not > > have happened [h264_qsv @ 0x2032e80] Error initializing the MFX video > > decoder: not initialized (-8) Error while decoding stream #0:0: Internal > bug, > > should not have happened [h264_qsv @ 0x2032e80] Error initializing the > > MFX video decoder: not initialized (-8) Error while decoding stream #0:0: > > Internal bug, should not have happened [h264_qsv @ 0x2032e80] Error > > initializing the MFX video decoder: not initialized (-8) Error while > decoding > > stream #0:0: Internal bug, should not have happened [h264_qsv @ > > 0x2032e80] Error initializing the MFX video decoder: not initialized > (-8) Error > > while decoding stream #0:0: Internal bug, should not have happened > > [h264_qsv @ 0x2032e80] Error initializing the MFX video decoder: not > > initialized (-8) Error while decoding stream #0:0: Internal bug, should > not > > have happened [h264_qsv @ 0x2032e80] Error initializing the MFX video > > decoder: not initialized (-8) Error while decoding stream #0:0: Internal > bug, > > should not have happened [h264_qsv @ 0x2032e80] Error initializing the > > MFX video decoder: not initialized (-8) Error while decoding stream #0:0: > > Internal bug, should not have happened [h264_qsv @ 0x2032e80] Error > > initializing the MFX video decoder: not initialized (-8) Error while > decoding > > stream #0:0: Internal bug, should not have happened [h264_qsv @ > > 0x2032e80] Error initializing the MFX video decoder: not initialized > (-8) Error > > while decoding stream #0:0: Internal bug, should not have happened > > [h264_qsv @ 0x2032e80] Error initializing the MFX video decoder: not > > initialized (-8) Error while decoding stream #0:0: Internal bug, should > not > > have happened [h264_qsv @ 0x2032e80] Error initializing the MFX video > > decoder: not initialized (-8) Error while decoding stream #0:0: Internal > bug, > > should not have happened [h264_qsv @ 0x2032e80] Error initializing the > > MFX video decoder: not initialized (-8) Error while decoding stream #0:0: > > Internal bug, should not have happened [h264_qsv @ 0x2032e80] Error > > initializing the MFX video decoder: not initialized (-8) Error while > decoding > > stream #0:0: Internal bug, should not have happened [h264_qsv @ > > 0x2032e80] Error initializing the MFX video decoder: not initialized > (-8) Error > > while decoding stream #0:0: Internal bug, should not have happened > > [h264_qsv @ 0x2032e80] Error initializing the MFX video decoder: not > > initialized (-8) Error while decoding stream #0:0: Internal bug, should > not > > have happened [h264_qsv @ 0x2032e80] Error initializing the MFX video > > decoder: not initialized (-8) Error while decoding stream #0:0: Internal > bug, > > should not have happened [h264_qsv @ 0x2032e80] Error initializing the > > MFX video decoder: not initialized (-8) Error while decoding stream #0:0: > > Internal bug, should not have happened [h264_qsv @ 0x2032e80] Error > > initializing the MFX video decoder: not initialized (-8) Error while > decoding > > stream #0:0: Internal bug, should not have happened [h264_qsv @ > > 0x2032e80] Error initializing the MFX video decoder: not initialized > (-8) Error > > while decoding stream #0:0: Internal bug, should not have happened > > [h264_qsv @ 0x2032e80] Error initializing the MFX video decoder: not > > initialized (-8) Error while decoding stream #0:0: Internal bug, should > not > > have happened [h264_qsv @ 0x2032e80] Error initializing the MFX video > > decoder: not initialized (-8) Error while decoding stream #0:0: Internal > bug, > > should not have happened [h264_qsv @ 0x2032e80] Error initializing the > > MFX video decoder: not initialized (-8) Error while decoding stream #0:0: > > Internal bug, should not have happened [h264_qsv @ 0x2032e80] Error > > initializing the MFX video decoder: not initialized (-8) Error while > decoding > > stream #0:0: Internal bug, should not have happened [h264_qsv @ > > 0x2032e80] Error initializing the MFX video decoder: not initialized > (-8) Error > > while decoding stream #0:0: Internal bug, should not have happened > > [h264_qsv @ 0x2032e80] Error initializing the MFX video decoder: not > > initialized (-8) Error while decoding stream #0:0: Internal bug, should > not > > have happened [h264_qsv @ 0x2032e80] Error initializing the MFX video > > decoder: not initialized (-8) Error while decoding stream #0:0: Internal > bug, > > should not have happened [h264_qsv @ 0x2032e80] Error initializing the > > MFX video decoder: not initialized (-8) Error while decoding stream #0:0: > > Internal bug, should not have happened [h264_qsv @ 0x2032e80] Error > > initializing the MFX video decoder: not initialized (-8) Error while > decoding > > stream #0:0: Internal bug, should not have happened [h264_qsv @ > > 0x2032e80] Error initializing the MFX video decoder: not initialized > (-8) Error > > while decoding stream #0:0: Internal bug, should not have happened > > [h264_qsv @ 0x2032e80] Error initializing the MFX video decoder: not > > initialized (-8) Error while decoding stream #0:0: Internal bug, should > not > > have happened [h264_qsv @ 0x2032e80] Error initializing the MFX video > > decoder: not initialized (-8) Error while decoding stream #0:0: Internal > bug, > > should not have happened [h264_qsv @ 0x2032e80] Error initializing the > > MFX video decoder: not initialized (-8) Error while decoding stream #0:0: > > Internal bug, should not have happened [h264_qsv @ 0x2032e80] Error > > initializing the MFX video decoder: not initialized (-8) Error while > decoding > > stream #0:0: Internal bug, should not have happened [h264_qsv @ > > 0x2032e80] Error initializing the MFX video decoder: not initialized > (-8) Error > > while decoding stream #0:0: Internal bug, should not have happened > > [h264_qsv @ 0x2032e80] Error initializing the MFX video decoder: not > > initialized (-8) Error while decoding stream #0:0: Internal bug, should > not > > have happened [h264_qsv @ 0x2032e80] Error initializing the MFX video > > decoder: not initialized (-8) Error while decoding stream #0:0: Internal > bug, > > should not have happened [h264_qsv @ 0x2032e80] Error initializing the > > MFX video decoder: not initialized (-8) Error while decoding stream #0:0: > > Internal bug, should not have happened [h264_qsv @ 0x2032e80] Error > > initializing the MFX video decoder: not initialized (-8) Error while > decoding > > stream #0:0: Internal bug, should not have happened [h264_qsv @ > > 0x2032e80] Error initializing the MFX video decoder: not initialized > (-8) Error > > while decoding stream #0:0: Internal bug, should not have happened > > [h264_qsv @ 0x2032e80] Error initializing the MFX video decoder: not > > initialized (-8) Error while decoding stream #0:0: Internal bug, should > not > > have happened [h264_qsv @ 0x2032e80] Error initializing the MFX video > > decoder: not initialized (-8) Error while decoding stream #0:0: Internal > bug, > > should not have happened [h264_qsv @ 0x2032e80] Error initializing the > > MFX video decoder: not initialized (-8) Error while decoding stream #0:0: > > Internal bug, should not have happened [h264_qsv @ 0x2032e80] Error > > initializing the MFX video decoder: not initialized (-8) Error while > decoding > > stream #0:0: Internal bug, should not have happened [h264_qsv @ > > 0x2032e80] Error initializing the MFX video decoder: not initialized > (-8) Error > > while decoding stream #0:0: Internal bug, should not have happened > > [h264_qsv @ 0x2032e80] Error initializing the MFX video decoder: not > > initialized (-8) Error while decoding stream #0:0: Internal bug, should > not > > have happened [h264_qsv @ 0x2032e80] Error initializing the MFX video > > decoder: not initialized (-8) Error while decoding stream #0:0: Internal > bug, > > should not have happened [h264_qsv @ 0x2032e80] Error initializing the > > MFX video decoder: not initialized (-8) Error while decoding stream #0:0: > > Internal bug, should not have happened [h264_qsv @ 0x2032e80] Error > > initializing the MFX video decoder: not initialized (-8) Error while > decoding > > stream #0:0: Internal bug, should not have happened [h264_qsv @ > > 0x2032e80] Error initializing the MFX video decoder: not initialized > (-8) Error > > while decoding stream #0:0: Internal bug, should not have happened > > [h264_qsv @ 0x2032e80] Error initializing the MFX video decoder: not > > initialized (-8) Error while decoding stream #0:0: Internal bug, should > not > > have happened [h264_qsv @ 0x2032e80] Error initializing the MFX video > > decoder: not initialized (-8) Error while decoding stream #0:0: Internal > bug, > > should not have happened [h264_qsv @ 0x2032e80] Error initializing the > > MFX video decoder: not initialized (-8) Error while decoding stream #0:0: > > Internal bug, should not have happened [h264_qsv @ 0x2032e80] Error > > initializing the MFX video decoder: not initialized (-8) Error while > decoding > > stream #0:0: Internal bug, should not have happened [h264_qsv @ > > 0x2032e80] Error initializing the MFX video decoder: not initialized > (-8) Error > > while decoding stream #0:0: Internal bug, should not have happened > > [h264_qsv @ 0x2032e80] Error initializing the MFX video decoder: not > > initialized (-8) Error while decoding stream #0:0: Internal bug, should > not > > have happened [h264_qsv @ 0x2032e80] Error initializing the MFX video > > decoder: not initialized (-8) Error while decoding stream #0:0: Internal > bug, > > should not have happened [h264_qsv @ 0x2032e80] Error initializing the > > MFX video decoder: not initialized (-8) Error while decoding stream #0:0: > > Internal bug, should not have happened [h264_qsv @ 0x2032e80] Error > > initializing the MFX video decoder: not initialized (-8) Error while > decoding > > stream #0:0: Internal bug, should not have happened [h264_qsv @ > > 0x2032e80] Error initializing the MFX video decoder: not initialized > (-8) Error > > while decoding stream #0:0: Internal bug, should not have happened > > [h264_qsv @ 0x2032e80] Error initializing the MFX video decoder: not > > initialized (-8) Error while decoding stream #0:0: Internal bug, should > not > > have happened [h264_qsv @ 0x2032e80] Error initializing the MFX video > > decoder: not initialized (-8) Error while decoding stream #0:0: Internal > bug, > > should not have happened [h264_qsv @ 0x2032e80] Error initializing the > > MFX video decoder: not initialized (-8) Error while decoding stream #0:0: > > Internal bug, should not have happened [h264_qsv @ 0x2032e80] Error > > initializing the MFX video decoder: not initialized (-8) Error while > decoding > > stream #0:0: Internal bug, should not have happened [h264_qsv @ > > 0x2032e80] Error initializing the MFX video decoder: not initialized > (-8) Error > > while decoding stream #0:0: Internal bug, should not have happened > > [h264_qsv @ 0x2032e80] Error initializing the MFX video decoder: not > > initialized (-8) Error while decoding stream #0:0: Internal bug, should > not > > have happened Too many packets buffered for output stream 0:1. > > [aac @ 0x21398c0] Qavg: 1872.197 > > [aac @ 0x21398c0] 2 frames left in the queue on closing Conversion > failed! > > > > > > > > > > What's wrong with the ffmpeg command? > > > > > > Thanks! > > > > > > Regards > > > > > > andrew > > > > > > > > > > > > > > At 2018-06-19 23:30:28, "DopeLabs" <dopel...@dubstep.fm> wrote: > > >have you searched the man page or. this page for "qsv" ? > > > > > >https://ffmpeg.org/ffmpeg-all.html > > > > > >> On Jun 19, 2018, at 1:44 46AM, qw <applema...@163.com> wrote: > > >> > > >> Hi, > > >> > > >> > > >> I want to use Intel qsv encoder/decoder for ffmpeg 4.0. I use > > '--enable-libmfx' to configure ffmpeg, and build it. What's ffmpeg > command > > to use Intel qsv h.264 encoder/decoder to do transcoding? > > >> > > >> > > >> Thanks! > > >> > > >> > > >> Regards > > >> > > >> > > >> Andrew > > >> _______________________________________________ > > >> ffmpeg-user mailing list > > >> ffmpeg-user@ffmpeg.org > > >> http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > >> > > >> To unsubscribe, visit link above, or email > > >> ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > > > > > >_______________________________________________ > > >ffmpeg-user mailing list > > >ffmpeg-user@ffmpeg.org > > >http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > > > > >To unsubscribe, visit link above, or email > > >ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > > _______________________________________________ > > ffmpeg-user mailing list > > ffmpeg-user@ffmpeg.org > > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org > > with subject "unsubscribe". > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
