Hi Cecil! On 2020-08-15 16:25 +0200, Cecil Westerhof wrote: > Simon Roberts <[email protected]> writes: > > > On Sat, Aug 15, 2020 at 5:01 AM Cecil Westerhof <[email protected]> wrote: > > > >> Through scripts I use ffmpeg for cutting and compressing videos and > >> sometimes adding a watermark. Nothing fancy, but handy. > >> > >> In the past the original file was between 4 to 13 times bigger as the > >> compressed file. Today I compressed a few files again. The compression > >> was almost non existing to less as three. > >> > > > > [...] > > > > > >> > > > > What could be happening here? > > > > > > The most immediate thought is that zoom improved their compression > > algorithm and now there's not so much room left for a secondary > > improvement. > > > > You might want to take a look at the original, perhaps using ffprobe, to > > determine what codec was used, and what bitrate it started out with. > > No, that is not the case. These where videos I shot with my Sony > handycam. So uncompressed files. > But maybe I should have described it a bit clearer.
Did I misread your logs? | Input #0, mpegts, from '00039.MTS': | Duration: 00:02:49.02, start: 1.040000, bitrate: 22533 kb/s | Program 1 | Stream #0:0[0x1011]: Video: h264 (High) (HDMV / 0x564D4448), yuv420p(top first), 1920x1080 [SAR 1:1 DAR 16:9], |+25 fps, 50 tbr, 90k tbn, 50 tbc | Stream #0:1[0x1100]: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, stereo, fltp, 256 kb/s | Stream #0:2[0x1200]: Subtitle: hdmv_pgs_subtitle ([144][0][0][0] / 0x0090), 1920x1080 | Stream mapping: | Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264)) The input doesn't look uncompressed to me. [...] Alexander _______________________________________________ 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".
