Hey, Any feedback on the solution posted above?
On Wed, Jun 20, 2018, 09:03 Dennis Mungai <dmng...@gmail.com> wrote: > 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".
