[FFmpeg-user] Error psz_cqm_file=8-0-8

abhishek punjabi abhishekpunjabi95 at gmail.com
Tue Jul 16 15:38:17 EEST 2019

Dear Sir,

As referred by Moritz below command is working fine for FFmpeg 4.1
-x264opts cqmfile=filename

I would like to know the difference between psz_cqm_file and cqmfile.
>From notes I got

/* JM format reads the external quantization matrix file in JM format,
automatically ignores other -cqm option */
    uint8_t cqm_4iy[16]; /* used only if i_cqm_preset == X264_CQM_CUSTOM */
    uint8_t cqm_4ic[16];

Thanks Regards
Abhishek Punjabi

On Mon, Jul 15, 2019 at 8:54 PM Moritz Barsnick <barsnick at gmx.net> wrote:

> On Mon, Jul 15, 2019 at 18:57:00 +0530, abhishek punjabi wrote:
> > I want to use the above parameter for FFmpeg 4.1
> > Its working fine in FFmpeg 2.6 version but not supported by 4.1 version.
> > Please provide a solution and asap to include parameter in
> > psz_cqm_file=8-0-8.
> As Ted pointed out, that probably needed to be a file name.
> Nevertheless, kindly show us the actual working ffmpeg-2.6 command
> line. As far as I can tell, psz_cqm_file was never an ffmpeg option. It
> may have been an x264 option, which is now called cqmfile in the
> command line tool.
> You can pass that option from ffmpeg using
> "-x264opts cqmfile=filename".
> Cheers,
> Moritz
> _______________________________________________
> ffmpeg-user mailing list
> ffmpeg-user at ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-user
> To unsubscribe, visit link above, or email
> ffmpeg-user-request at ffmpeg.org with subject "unsubscribe".


*Abhishek Punjabi,*

*Department of Computer Science and Engineering, Institute of Computer
*Ganpat University,*

       *Contact : +91 9913001667*
*abhishek.cba1501 at ict.gnu.ac.in <abhishek.cba1501 at ict.gnu.ac.in>*

More information about the ffmpeg-user mailing list