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

[Phyllis Smith]

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!

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.
> --
> Cin mailing list
> Cin at lists.cinelerra-gg.org
> https://lists.cinelerra-gg.org/mailman/listinfo/cin
>
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