[FFmpeg-trac] #1725(avfilter:new): filter_complex losing frames
FFmpeg
trac at avcodec.org
Mon Sep 10 18:53:33 CEST 2012
#1725: filter_complex losing frames
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Reporter: takis | Owner:
Type: defect | Status: new
Priority: normal | Component: avfilter
Version: git-master | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by Cigaes):
Replying to [comment:1 takis]:
> {{{
> Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
'/srv/files/videos/big_buck_bunny_1080p_h264.mov':
> Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p,
1920x1080, 9282 kb/s, 24 fps, 24 tbr, 2400 tbn, 4800 tbc
> Input #1, image2, from 'frame%05d.png':
> Stream #1:0: Video: png, rgba, 3840x2160, 25 fps, 25 tbr, 25 tbn, 25
tbc
> }}}
As quoted, your main video is 24 FPS while the overlay video (they are
actually images, but ffmpeg sees them as a single video) is 25 FPS: one
frame per second of the overlay falls between two frames of the main input
and is dropped. That is normal behaviour. If your frames are supposed to
match, specify the frame rate for the images.
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1725#comment:3>
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