Linjie Fu (12021-08-03): > From: Linjie Fu <linjie.justin...@gmail.com> > > Pass sws_flags to scale filter through scale_sws_opts and correct the > dumped flags information. > > CMD: > $ffmpeg -v verbose -i input.mp4 -sws_flags lanczos+bitexact+accurate_rnd \ > -vf format=yuv420p,scale=800x600 -an -vframes 10 -f md5 - > > Before: > [auto_scaler_0 @ 0x7f899a418780] w:iw h:ih flags:'bilinear' interl:0 > [auto_scaler_0 @ 0x7f899a418780] w:1920 h:1080 fmt:yuvj420p sar:0/1 -> w:1920 > h:1080 fmt:yuv420p sar:0/1 flags:0x2 > [Parsed_scale_1 @ 0x7f899a417100] w:1920 h:1080 fmt:yuv420p sar:0/1 -> w:800 > h:600 fmt:yuv420p sar:0/1 flags:0x2 > MD5=ff1d6091690c6fcd36d458d2a9f648ce > > After: > [auto_scaler_0 @ 0x7fc7a3a06080] w:iw h:ih > flags:'lanczos+bitexact+accurate_rnd' interl:0 > [auto_scaler_0 @ 0x7fc7a3a06080] w:1920 h:1080 fmt:yuvj420p sar:0/1 -> w:1920 > h:1080 fmt:yuv420p sar:0/1 flags:0xc0200 > [Parsed_scale_1 @ 0x7fc7a3a04780] w:1920 h:1080 fmt:yuv420p sar:0/1 -> w:800 > h:600 fmt:yuv420p sar:0/1 flags:0xc0200 > MD5=ff1d6091690c6fcd36d458d2a9f648ce > > Signed-off-by: Linjie Fu <linjie.justin...@gmail.com> > --- > fftools/ffmpeg_filter.c | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > > diff --git a/fftools/ffmpeg_filter.c b/fftools/ffmpeg_filter.c > index 958d74f008..94838adc56 100644 > --- a/fftools/ffmpeg_filter.c > +++ b/fftools/ffmpeg_filter.c > @@ -977,7 +977,11 @@ int configure_filtergraph(FilterGraph *fg) > } > if (strlen(args)) > args[strlen(args)-1] = 0;
> - fg->graph->scale_sws_opts = av_strdup(args);
> +
> + if (!strncmp(args, "sws_flags=", 10)) {
> + // keep the 'flags=' part
> + fg->graph->scale_sws_opts = av_strdup(args+4);
> + }
What? This code does not seem to match the commit message. More
explanation needed.
>
> args[0] = 0;
> while ((e = av_dict_get(ost->swr_opts, "", e,
Regards,
--
Nicolas George
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