[Cin] I tried to add AVC-Intra 100 output profiles

Wed May 7 02:26:01 CEST 2025

I had already removed the Windows ^M line ends when testing.  Not sure what
I did wrong, but the attached one here works so it will be checked in next
time I boot the desktop.

On Tue, May 6, 2025 at 2:26 PM Andrew Randrianasulu <randrianasulu at gmail.com>
wrote:

>
>
> вт, 6 мая 2025 г., 23:15 Andrew Randrianasulu <randrianasulu at gmail.com>:
>
>>
>>
>> вт, 6 мая 2025 г., 23:10 Phyllis Smith via Cin <
>> cin at lists.cinelerra-gg.org>:
>>
>>> Although the attached render file AVC_Intra_100.mp4 was checked in
>>> awhile ago, I have NOT been able to get AVC_Intra_100.mov to work on Fedora
>>> 32.  Error I get is:
>>>
>>>> [libx264 @ 0x7f9b9c0b1040]  8-bit AVC-Intra is not widely compatible
>>>> [libx264 @ 0x7f9b9c0b1040] 10-bit x264 is required to encode AVC-Intra
>>>> FFMPEG::open_encoder  err: Generic error in an external library
>>>> int FFMPEG::open_encoder(const char*, const char*):
>>>> open failed libx264:/tmp/hdrnmm.mov
>>>>
>>> If I delete the input line of "avcintra-class=100" which is perfectly
>>> legal per "view" it works, but then there is no point!
>>>
>>
>> I think our ffmpeg accidently get headers from system's x264, probably
>> compiled without 10bit support?  (this is strange, but Fedora! they cut
>> codec support due to *patent* reasons because they operate in USA)
>>
>> try to remove x264-devel from system and recompile cingg?
>>
>> Or just check that Pixels set to yuv422p10le .... (may he i missed _that_
>> back in time )....
>>
>
>
> oh, I tried it on Termux and it was failing to set Pixels, so I discovered
> it had Windows line ends (^M in midnight commander's mcedit).
>
> I deleted those and now profile works!
>
> Attaching anew ..
>
>
>
>
>>
>>
>>> On Fri, Mar 20, 2020 at 3:11 PM Andrew Randrianasulu <
>>> randrianasulu at gmail.com> wrote:
>>>
>>>> But not sure if I did this correctly.
>>>>
>>>> https://en.wikipedia.org/wiki/AVC-Intra
>>>> says for AVC-Intra 100:
>>>>
>>>> AVC-Intra 100:
>>>> nominally 100 Mbit/s, size of each frame is fixed
>>>> CAVLC entropy coding only.
>>>> All formats are High 4:2:2 Intra Profile, Level 4.1
>>>> 4:2:2 chrominance sampling
>>>> frames are not scaled
>>>>
>>>> and yeah, this French-language pdf actually says the same:
>>>>
>>>> https://web.archive.org/web/20110720215759/http://www.ficam.fr/upload/documents/AVCIntra.pdf
>>>>
>>>>                         50M                           100M
>>>> Standard                     MPEG-4 part10 AVC/H.264
>>>> Profile             High 10 Intra                 High 4:2:2 Intra
>>>> Level               Level 3.2/4.0                    Level 4.1
>>>> Resolution       1440x1080 / 960x720           1920x1080 / 1280x720
>>>> Sampling                4:2:0                          4:2:2
>>>> Bit rate               54Mbps                        111Mbps
>>>> Block size                         Y: 8x8, C: 4x4
>>>> Intra Prediction                Y: 9mode, C: 4mode
>>>> MBAFF                                   Yes
>>>> De-block filter                         No
>>>> Slice/frame                             10
>>>> Entropy coding        CABAC                          CAVLC
>>>>
>>>> so, I looked up ffmpeg cmd line
>>>> https://trac.ffmpeg.org/ticket/3597
>>>>
>>>> ffmpeg -v info -i /mnt-data/backup4/vol0/export/CUHK\ 2014-1/V017b.mov
>>>> -vcodec libx264 -intra -pix_fmt yuv422p10le -vb 100M -x264opts
>>>> avcintra-class=100
>>>> -x264opts colorprim=bt709 -x264opts transfer=bt709 -x264opts
>>>> colormatrix=bt709
>>>> -threads 4 -acodec copy V017b-ffmpeg-git-avcintra100.mov
>>>>
>>>> Huh, said I and entered those params in opts file, actually in two
>>>> files (mp4 and mov containers)
>>>>
>>>> mov libx264
>>>> cin_pix_fmt=yuv422p10le
>>>> flags -global_header
>>>> keyint_min=0
>>>> x264-params=keyint=0:colorprim=bt709:transfer=bt709:colormatrix=bt709
>>>> avcintra-class=100
>>>> bufsize=100000000
>>>> level=4.1
>>>>
>>>> mp4 libx264
>>>> cin_pix_fmt=yuv422p10le
>>>> flags -global_header
>>>> keyint_min=0
>>>> x264-params=keyint=0:colorprim=bt709:transfer=bt709:colormatrix=bt709
>>>> avcintra-class=100
>>>> bufsize=100000000
>>>> level=4.1
>>>>
>>>> both for progressive content, for interlace you must add some more
>>>> flags:
>>>> https://lists.ffmpeg.org/pipermail/ffmpeg-user/2017-January/035049.html
>>>>
>>>> -flags +ildct+ilme
>>>> -x264opts interlaced=1
>>>>
>>>> Also, there is still lack of (GUI) user notification if file writing
>>>> failed due to
>>>> NO SPACE on device :}
>>>>
>>>> FFStream::write_packet: write packet failed.
>>>> file:/dev/shm/avci_new.mp4
>>>>   err: На устройстве не осталось свободного места
>>>> FFStream::encode_frame: encode failed.
>>>> file: /dev/shm/avci_new.mp4
>>>>   err: На устройстве не осталось свободного места
>>>> FFStream::flush failed
>>>> :file:/dev/shm/avci_new.mp4
>>>>   err: Операция не позволена
>>>> Render::render_single: Session finished.
>>>> ** rendered 273 frames in 85.585 secs, 3.190 fps
>>>> Render::render_single: Session finished.
>>>> ** rendered 273 frames in 85.485 secs, 3.194 fps
>>>> Render::render_single: Session finished.
>>>> ** rendered 273 frames in 82.176 secs, 3.322 fps
>>>>
>>>> Profile sort of assumes you set project to some supported resolution,
>>>> framerate, etc,
>>>> otherwise libx264 will fail with console error message.....
>>>>
>>>> I found some talk about AVC-Ultra, there even was patch for x264, but
>>>> it was not merged:
>>>>
>>>> https://mailman.videolan.org/pipermail/x264-devel/2015-September/011412.html
>>>>
>>>>
>>>> Also, I think sound must be uncompressed, but I'm not sure.
>>>> --
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>>>> Cin at lists.cinelerra-gg.org
>>>> https://lists.cinelerra-gg.org/mailman/listinfo/cin
>>>>
>>> --
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>>> Cin at lists.cinelerra-gg.org
>>> https://lists.cinelerra-gg.org/mailman/listinfo/cin
>>>
>>
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