<div dir="auto"><div><br><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">пт, 22 нояб. 2024 г., 20:07 Terje Hanssen <<a href="mailto:terjejhanssen@gmail.com">terjejhanssen@gmail.com</a>>:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><u></u>
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<div>On 11/22/24 17:58, Andrew Randrianasulu
wrote:<br>
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<div dir="ltr" class="gmail_attr">пт, 22 нояб. 2024 г.,
19:55 Terje Hanssen <<a href="mailto:terjejhanssen@gmail.com" target="_blank" rel="noreferrer">terjejhanssen@gmail.com</a>>:<br>
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<div>On 11/22/24 18:41, Andrew Randrianasulu wrote:<br>
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<pre>On Fri, Nov 22, 2024 at 2:52 PM Terje Hanssen <a href="mailto:terjejhanssen@gmail.com" rel="noreferrer noreferrer" target="_blank"><terjejhanssen@gmail.com></a> wrote:
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<pre>On 11/22/24 08:45, Andrew Randrianasulu wrote:
---------- Forwarded message ---------
От: Wang, Fei W <a href="mailto:fei.w.wang-at-intel.com@ffmpeg.org" rel="noreferrer noreferrer" target="_blank"><fei.w.wang-at-intel.com@ffmpeg.org></a>
Date: пт, 22 нояб. 2024 г., 09:10
Subject: Re: [FFmpeg-devel] qsvenc.c & AV_CODEC_FLAG_INTERLACED_DCT
To: <a href="mailto:ffmpeg-devel@ffmpeg.org" rel="noreferrer noreferrer" target="_blank">ffmpeg-devel@ffmpeg.org</a> <a href="mailto:ffmpeg-devel@ffmpeg.org" rel="noreferrer noreferrer" target="_blank"><ffmpeg-devel@ffmpeg.org></a>
On Thu, 2024-11-21 at 11:50 +0300, Andrew Randrianasulu wrote:
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<pre>Hello.
Recently I teached cinelerra-gg to use qsv encoders in ffmpeg
(libavcodec)
and some test were working but some not.
We nailed it down to top-field first material, like HDV files. bff
files
like consumer version of DV and progressive worked fine.
I looked at source and ... I thought condition at
<a href="http://git.ffmpeg.org/gitweb/ffmpeg.git/blob/HEAD:/libavcodec/qsvenc.c#l852" rel="noreferrer noreferrer" target="_blank">http://git.ffmpeg.org/gitweb/ffmpeg.git/blob/HEAD:/libavcodec/qsvenc.c#l852</a>
must contain case for bff, but I tried this and it was reportedly not
helping?
We currently set flags = ildct+ilme on interlaced streams, I hope to
avoid
special-casing qsv encoders, but may be we have no other choice?
I asked user (Terje) to add +ildct flag to his normal system ffmpeg
line
and it started to fail too:
<a href="https://lists.cinelerra-gg.org/pipermail/cin/2024-November/009123.html" rel="noreferrer noreferrer" target="_blank">https://lists.cinelerra-gg.org/pipermail/cin/2024-November/009123.html</a>
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<pre>AV1 doesn't support interlaced frame.
We can dual check to transcode hdv to av1_qsv again, as I did with ffmpeg in this post
<a href="https://www.mail-archive.com/cin@lists.cinelerra-gg.org/msg08314.html" rel="noreferrer noreferrer" target="_blank">https://www.mail-archive.com/cin@lists.cinelerra-gg.org/msg08314.html</a>
My issue now currently on Kaby Lake is that I have no hdv.m2t file stored and could not find a download link with example hdv. Suggestion?
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<pre><a href="https://archive.org/download/hdv01" rel="noreferrer noreferrer" target="_blank">https://archive.org/download/hdv01</a></pre>
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<br>
Thanks, I downloaded FX1_01.mpg, which even its wrong
file extension is a 1080i50 HDV recorded on a
predecessor of my own Sony FX7-E camcorder.)<br>
<br>
<font face="Courier New, Courier, monospace">mediainfo
FX1_01.mpg | egrep -i "scan|bit|format|FileExtension"<br>
Format : MPEG-TS<br>
Overall bit rate mode : Variable<br>
Overall bit rate : 26.1 Mb/s<br>
Maximum Overall bit rate : 33.0 Mb/s<br>
FileExtension_Invalid : ts m2t m2s
m4t m4s tmf ts tp trp ty<br>
Format : MPEG Video<br>
Format version : Version 2<br>
Format profile : Main@High
1440<br>
Format settings :
CustomMatrix / BVOP<br>
Format settings, BVOP : Yes<br>
Format settings, Matrix : Custom<br>
Format settings, GOP : M=3, N=12<br>
Format settings, picture structure : Frame<br>
Bit rate mode : Constant<br>
Bit rate : 24.5 Mb/s<br>
Maximum bit rate : 25.0 Mb/s<br>
Bit depth : 8 bits<br>
Scan type : Interlaced<br>
Scan order : Top Field
First<br>
Bits/(Pixel*Frame) : 0.629<br>
Format : MPEG Audio<br>
Format version : Version 1<br>
Format profile : Layer 2<br>
Bit rate mode : Constant<br>
Bit rate : 384 kb/s<br>
Format : MPEG Video
/ MPEG Audio / / <br>
<br>
<br>
But unhappily, the HDV --> av1_qsv transcoding I
previous did on i17-12700/DG2 WS<br>
<a href="https://www.mail-archive.com/cin@lists.cinelerra-gg.org/msg08314.html" rel="noreferrer noreferrer" target="_blank">https://www.mail-archive.com/cin@lists.cinelerra-gg.org/msg08314.html</a><br>
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<blockquote><font face="Courier New, Courier, monospace">HDV
--> av1_qsv -global_quality 25</font><br>
<font face="Courier New, Courier, monospace">-----------------------------------</font><br>
<font face="Courier New, Courier, monospace">ffmpeg
-hide_banner -qsv_device /dev/dri/renderD128 -i
hdv09_04.m2t -pix_fmt nv12 -c:v av1_qsv
-global_quality 25
hdv09_04_av1_qsv_format_nv12_gq25.mp4</font><br>
<br>
<font face="Courier New, Courier, monospace">ffprobe
-hide_banner hdv09_04_av1_qsv_format_nv12_gq25.mp4</font><br>
<font face="Courier New, Courier, monospace"> Stream
#0:0[0x1](und): Video: av1 (libdav1d) (Main) (av01 /
0x31307661), yuv420p(tv, bt709, top coded first
(swapped)), 1440x1080, 7902 kb/s, SAR 4:3 DAR 16:9,
24.99 fps, 25 tbr, 12800 tbn (default) <br>
</font></blockquote>
is not possible on my legacy KBL i7-8550U Intel UHD
Graphics 620 <br>
<br>
<font face="Courier New, Courier, monospace">[av1_qsv @
0x5641dd0f5440] This version of runtime doesn't
support AV1 encoding</font><br>
<br>
as confirmed by these limited capabilites <br>
<br>
<font face="Courier New, Courier, monospace">vainfo |
grep -i enc<br>
libva info: VA-API version 1.22.0<br>
libva info: Trying to open
/usr/lib64/dri/iHD_drv_video.so<br>
libva info: Found init function __vaDriverInit_1_22<br>
libva info: va_openDriver() returns 0<br>
VAProfileMPEG2Simple :
VAEntrypointEncSlice<br>
VAProfileMPEG2Main :
VAEntrypointEncSlice<br>
VAProfileH264Main :
VAEntrypointEncSlice<br>
VAProfileH264Main :
VAEntrypointEncSliceLP<br>
VAProfileH264High :
VAEntrypointEncSlice<br>
VAProfileH264High :
VAEntrypointEncSliceLP<br>
VAProfileJPEGBaseline :
VAEntrypointEncPicture<br>
VAProfileH264ConstrainedBaseline:
VAEntrypointEncSlice<br>
VAProfileH264ConstrainedBaseline:
VAEntrypointEncSliceLP<br>
VAProfileVP8Version0_3 :
VAEntrypointEncSlice<br>
VAProfileHEVCMain :
VAEntrypointEncSlice<br>
VAProfileHEVCMain10 :
VAEntrypointEncSlice</font><br>
<br>
By the way, neither this attempt claims about
unsupported or wrong image structure format !?<br>
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<div dir="auto">may be it not even come to this line and abort
earlier? (in compiled languages functions can be executed out
of order they appear in file)</div>
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<br>
HDV --> av1_qsv transcoded as referenced above on the newer
i17-12700/DG2<br>
</div></blockquote></div></div><div dir="auto"><br></div><div dir="auto">??</div><div dir="auto"><br></div><div dir="auto">you mean why default ffmpeg does not trip over this line?</div><div dir="auto"><br></div><div dir="auto">it silently ignores interlace and makes something flagged as interlaced but actually not?</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><br>
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<pre>You may add deinterlace filter
before encoder after apply this patch:
<a href="https://patchwork.ffmpeg.org/project/ffmpeg/list/?series=13372" rel="noreferrer noreferrer" target="_blank">https://patchwork.ffmpeg.org/project/ffmpeg/list/?series=13372</a>
cmd:
ffmpeg -hide_banner -qsv_device /dev/dri/renderD128 -
hwaccel_output_format qsv -i input.mp4 -pix_fmt nv12 -vf
vpp_qsv=deinterlace=advanced -c:v av1_qsv -f null -
Thanks
Fei
</pre>
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