Thank you. Please can you explain a little bit more about what option I should set.
Regards -----Original Message----- From: ffmpeg-user <[email protected]> On Behalf Of Paul B Mahol Sent: 11 September 2021 16:54 To: FFmpeg user questions <[email protected]> Subject: Re: [FFmpeg-user] Quality Reduced when Burning Subtitles Next time set option for overlay filter. On Sat, Sep 11, 2021 at 5:47 PM Veronica & Stephen McGuckin < [email protected]> wrote: > Hello, > > I am trying to overlay pgs subtitles onto a 4K video. I have extracted > 10 minute to make sure I have the correct ffmpeg coding. The input > file is 5.6 gigabytes with a bit rate of 78.6 Mb/s. I am using the > following ffmpeg commands. > > ffmpeg -i c:\video\input.mkv -filter_complex “[0:v][0:s]overlay[v]” > -c:v > libx265 -pix_fmt yuv420p10le -profile:v high -x265-params “-crf=10 > -film > -hdr10+=1 -preset slow” -map “[v]” -map 0:a:0 -c:a copy > -hdr10+c:\video\output.mkv > > When the conversion is complete the output file is 143 mb with a bit > rate of 279 b/s. I am surprised the output file is so small. I would > have expected it to be also around 5 Gb. I am concerned that I will > have lost some of the quality. Have I somehow got the wrong parameters? > > I have attached a word document which provides the console output. I > have also attached a screen shot showing the file data as reported by > Mediainfo. > > Any advice would be appreciated. > > Regards > > Stephen > _______________________________________________ > ffmpeg-user mailing list > [email protected] > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". > _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
