On Sun, Sep 5, 2021 at 3:43 PM Veronica & Stephen McGuckin < vsmcguc...@outlook.com> 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 c:\video\output.mkv > > Make sure that overlay filter uses 10bit format by setting appropriate filter option if main format is also 10bit. > 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? > > Any help will be appreciated. > > Stephen McGuckin > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
