[Cin] Fwd: [FFmpeg-devel] qsvenc.c & AV_CODEC_FLAG_INTERLACED_DCT
Terje Hanssen
terjejhanssen at gmail.com
Sat Nov 23 13:15:01 CET 2024
On 11/22/24 18:54, Andrew Randrianasulu wrote:
>
>
> пт, 22 нояб. 2024 г., 20:37 Terje Hanssen <terjejhanssen at gmail.com>:
>
>
>
>
> On 11/22/24 18:12, Andrew Randrianasulu wrote:
>>
>>
>> пт, 22 нояб. 2024 г., 20:07 Terje Hanssen <terjejhanssen at gmail.com>:
>>
>>
>>
>>
>> On 11/22/24 17:58, Andrew Randrianasulu wrote:
>>>
>>>
>>> пт, 22 нояб. 2024 г., 19:55 Terje Hanssen
>>> <terjejhanssen at gmail.com>:
>>>
>>>
>>>
>>>
>>> On 11/22/24 18:41, Andrew Randrianasulu wrote:
>>>> On Fri, Nov 22, 2024 at 2:52 PM Terje Hanssen<terjejhanssen at gmail.com> <mailto:terjejhanssen at gmail.com> wrote:
>>>>> On 11/22/24 08:45, Andrew Randrianasulu wrote:
>>>>>
>>>>>
>>>>>
>>>>> ---------- Forwarded message ---------
>>>>> От: Wang, Fei W<fei.w.wang-at-intel.com at ffmpeg.org> <mailto:fei.w.wang-at-intel.com at ffmpeg.org>
>>>>> Date: пт, 22 нояб. 2024 г., 09:10
>>>>> Subject: Re: [FFmpeg-devel] qsvenc.c & AV_CODEC_FLAG_INTERLACED_DCT
>>>>> To:ffmpeg-devel at ffmpeg.org <ffmpeg-devel at ffmpeg.org> <mailto:ffmpeg-devel at ffmpeg.org>
>>>>>
>>>>>
>>>>> On Thu, 2024-11-21 at 11:50 +0300, Andrew Randrianasulu wrote:
>>>>>> 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
>>>>>>
>>>>>> http://git.ffmpeg.org/gitweb/ffmpeg.git/blob/HEAD:/libavcodec/qsvenc.c#l852
>>>>>>
>>>>>>
>>>>>> 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:
>>>>>>
>>>>>> https://lists.cinelerra-gg.org/pipermail/cin/2024-November/009123.html
>>>>> AV1 doesn't support interlaced frame.
>>>
I wonder if AV1 generic doesn't support interlaced input video, then
neither AV1 software encoders like av1_svt should be able to do it. Or
may this mean interlaced output?
>>>>> We can dual check to transcode hdv to av1_qsv again, as I did with ffmpeg in this post
>>>>> https://www.mail-archive.com/cin@lists.cinelerra-gg.org/msg08314.html
>>>>>
>>>>> 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?
>>>>>
>>>> https://archive.org/download/hdv01
>>>
>>> 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.)
>>>
>>> mediainfo FX1_01.mpg | egrep -i
>>> "scan|bit|format|FileExtension"
>>> Format : MPEG-TS
>>> Overall bit rate mode : Variable
>>> Overall bit rate : 26.1 Mb/s
>>> Maximum Overall bit rate : 33.0 Mb/s
>>> FileExtension_Invalid : ts m2t m2s
>>> m4t m4s tmf ts tp trp ty
>>> Format : MPEG Video
>>> Format version : Version 2
>>> Format profile : Main at High 1440
>>> Format settings : CustomMatrix / BVOP
>>> Format settings, BVOP : Yes
>>> Format settings, Matrix : Custom
>>> Format settings, GOP : M=3, N=12
>>> Format settings, picture structure : Frame
>>> Bit rate mode : Constant
>>> Bit rate : 24.5 Mb/s
>>> Maximum bit rate : 25.0 Mb/s
>>> Bit depth : 8 bits
>>> Scan type : Interlaced
>>> Scan order : Top Field First
>>> Bits/(Pixel*Frame) : 0.629
>>> Format : MPEG Audio
>>> Format version : Version 1
>>> Format profile : Layer 2
>>> Bit rate mode : Constant
>>> Bit rate : 384 kb/s
>>> Format : MPEG Video /
>>> MPEG Audio / /
>>>
>>>
>>> But unhappily, the HDV --> av1_qsv transcoding I
>>> previous did on i17-12700/DG2 WS
>>> https://www.mail-archive.com/cin@lists.cinelerra-gg.org/msg08314.html
>>>
>>> HDV --> av1_qsv -global_quality 25
>>> -----------------------------------
>>> 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
>>>
>>> ffprobe -hide_banner
>>> hdv09_04_av1_qsv_format_nv12_gq25.mp4
>>> 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)
>>>
>>> is not possible on my legacy KBL i7-8550U Intel UHD
>>> Graphics 620
>>>
>>> [av1_qsv @ 0x5641dd0f5440] This version of runtime
>>> doesn't support AV1 encoding
>>>
>>> as confirmed by these limited capabilites
>>>
>>> vainfo | grep -i enc
>>> libva info: VA-API version 1.22.0
>>> libva info: Trying to open /usr/lib64/dri/iHD_drv_video.so
>>> libva info: Found init function __vaDriverInit_1_22
>>> libva info: va_openDriver() returns 0
>>> VAProfileMPEG2Simple : VAEntrypointEncSlice
>>> VAProfileMPEG2Main : VAEntrypointEncSlice
>>> VAProfileH264Main : VAEntrypointEncSlice
>>> VAProfileH264Main : VAEntrypointEncSliceLP
>>> VAProfileH264High : VAEntrypointEncSlice
>>> VAProfileH264High : VAEntrypointEncSliceLP
>>> VAProfileJPEGBaseline : VAEntrypointEncPicture
>>> VAProfileH264ConstrainedBaseline: VAEntrypointEncSlice
>>> VAProfileH264ConstrainedBaseline: VAEntrypointEncSliceLP
>>> VAProfileVP8Version0_3 : VAEntrypointEncSlice
>>> VAProfileHEVCMain : VAEntrypointEncSlice
>>> VAProfileHEVCMain10 : VAEntrypointEncSlice
>>>
>>> By the way, neither this attempt claims about
>>> unsupported or wrong image structure format !?
>>>
>>>
>>>
>>> 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)
>>
>> HDV --> av1_qsv transcoded as referenced above on the newer
>> i17-12700/DG2
>>
>>
>> ??
>>
>> you mean why default ffmpeg does not trip over this line?
>>
>> it silently ignores interlace and makes something flagged as
>> interlaced but actually not?
>
> We can have a closer look at the av1_qsv output, possibly with
> loglevel verbose or debug on that WS, when I'm back again. I don't
> know what ffmpeg really does here, but as far it is accelerated
> (fps=561 for cfhd.mkv), viewable and playable, it will be good?
>
>
>
> welll ..may be?
>
> If it works good enough for those goals may be you can just set
> cingg's format to progressive even if autodetect says interlaced, and
> try to render.
I'll try that also.
>
>
>
>
>
>
>
>>
>>
>>
>>
>>
>>>
>>>
>>>
>>>
>>>>> You may add deinterlace filter
>>>>> before encoder after apply this patch:
>>>>> https://patchwork.ffmpeg.org/project/ffmpeg/list/?series=13372
>>>>>
>>>>> 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
>>>>>
>>>>>> _______________________________________________
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>>>>>> ffmpeg-devel at ffmpeg.org
>>>>>> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>>>>>>
>>>>>> To unsubscribe, visit link above, or email
>>>>>> ffmpeg-devel-request at ffmpeg.org with subject "unsubscribe".
>>>>> _______________________________________________
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>>>>> ffmpeg-devel at ffmpeg.org
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>>>>>
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>>>>> ffmpeg-devel-request at ffmpeg.org with subject "unsubscribe".
>>>>>
>>>>>
>>>
>>
>
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