[FFmpeg-user] ffmpeg 4.0 fails to transcoding one 4k clip

[Dennis Mungai]

Also, can you provide the output of vainfo?

On 27 July 2018 at 09:27, Yang Zhang <yzfedora at gmail.com> wrote:

> It will cause you get the "partial HW acceleration" error message
> always. there is a patch fix the problem I remember, but I couldn't
> find the patch in the latest FFmpeg
>
> On 7/27/18, qw <applemax82 at 163.com> wrote:
> > Hi,
> >
> >
> > I use the following command, which reports error:
> >
> >
> > ffmpeg -nostdin -y -hwaccel qsv -c:v h264_qsv -i src_AVC_4K.mp4 -b:a
> 80000
> > -ar 44100 -c:v h264_qsv -g 300 -profile:v high -preset veryfast -c:a
> > libfdk_aac -max_muxing_queue_size 4000 -b:v 17418000 -movflags +faststart
> > -strict -3 -vsync passthrough -f mp4 dst_AVC_4K.mp4
> >
> >
> > 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: --enable-version3 --enable-asm --enable-x86asm
> > --enable-avfilter --disable-static --enable-shared --enable-gpl
> > --enable-nonfree --prefix=/usr/local/ --enable-libvidstab --enable-libass
> > --enable-libfreetype --extra-libs=-lfreetype --enable-libtesseract
> > --enable-libfdk_aac --enable-libmp3lame --enable-libx264
> > --enable-libopenjpeg --enable-libwebp --enable-libx265 --enable-libvorbis
> > --extra-cflags=-I/usr/local/include --extra-ldflags=-L/usr/local/lib
> > --enable-stripping --enable-libmfx
> >   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, mov,mp4,m4a,3gp,3g2,mj2, from 'src_AVC_4K.mp4':
> >   Metadata:
> >     major_brand     : isom
> >     minor_version   : 512
> >     compatible_brands: isomiso2avc1mp41
> >     encoder         : Lavf58.12.100
> >   Duration: 00:00:03.05, start: 0.000000, bitrate: 42590 kb/s
> >     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
> > 3840x2160 [SAR 1:1 DAR 16:9], 43119 kb/s, 29.97 fps, 29.97 tbr, 30k tbn,
> > 59.94 tbc (default)
> >     Metadata:
> >       handler_name    : VideoHandler
> >     Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz,
> stereo,
> > fltp, 82 kb/s (default)
> >     Metadata:
> >       handler_name    : SoundHandler
> > Stream mapping:
> >   Stream #0:0 -> #0:0 (h264 (h264_qsv) -> h264 (h264_qsv))
> >   Stream #0:1 -> #0:1 (aac (native) -> aac (libfdk_aac))
> > [h264_qsv @ 0x22b8480] Encoder will work with partial HW accelerationte=
> > -0.0kbits/s speed=N/A
> > [h264_qsv @ 0x22b8480] Error initializing the encoder: invalid video
> > parameters (-15)
> > Error initializing output stream 0:0 -- Error while opening encoder for
> > output stream #0:0 - maybe incorrect parameters such as bit_rate, rate,
> > width or height
> > [libfdk_aac @ 0x23b12c0] 2 frames left in the queue on closing
> > Conversion failed!
> >
> >
> > src_AVC_4K.mp4 can be downloaded via the link url:
> > https://drive.google.com/file/d/15X7RYIEEvInN8y1gqrZax3-
> ZGjpcJQ_C/view?usp=sharing
> >
> >
> > Is it a ffmpeg bug?
> >
> >
> > Thanks!
> >
> >
> > Regards
> >
> >
> > Andrew
> > _______________________________________________
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> >
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