[FFmpeg-devel] (no subject)

Michael Niedermayer michael at niedermayer.cc
Thu Jun 21 19:10:09 EEST 2018


On Wed, Jun 20, 2018 at 05:25:32PM +0800, Wang Cao wrote:
> For example: with (-psnr)
> frame=  450 fps=315 q=0.0 LPSNR=Y:44.15 U:43.21 V:42.36 *:43.64 size=     385kB time=00:00:15.01 bitrate= 210.0kbits/s speed=10.5x (video stats)
> size=     107kB time=00:00:15.13 bitrate=  58.0kbits/s speed=10.6x (audio stats)
> 
> frame=  450 fps=112 q=0.0 LPSNR=Y:44.15 U:43.21 V:42.36 *:43.64 size=     385kB time=00:00:15.01 bitrate= 210.0kbits/s speed=3.74x
> size=     107kB time=00:00:15.13 bitrate=  58.0kbits/s speed=3.77x
> q=0.0 frame=  450 fps=112 q=0.0 LPSNR=Y:44.15 U:43.21 V:42.36 *:43.64 size=     385kB time=00:00:15.13 bitrate= 208.4kbits/s speed=3.77x
> size=     107kB time=00:00:15.13 bitrate=  58.0kbits/s speed=3.77x
> q=0.0 frame=  450 fps=112 q=0.0 LPSNR=Y:44.15 U:43.21 V:42.36 *:43.64 size=     385kB time=00:00:15.13 bitrate= 208.4kbits/s speed=3.77x
> size=     107kB time=00:00:15.13 bitrate=  58.0kbits/s speed=3.77x
> video:385kB audio:107kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.880871%
> video:385kB audio:107kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.880871%
> video:385kB audio:107kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.880871%

how does the user know which is which output ?

also some users may want just one line summarizing all

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Awnsering whenever a program halts or runs forever is
On a turing machine, in general impossible (turings halting problem).
On any real computer, always possible as a real computer has a finite number
of states N, and will either halt in less than N cycles or never halt.
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