lp
Output #0, mpeg, to 'T:\TEMP\0079\test_file_31629.mpg':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp42isom
encoder : Lavf59.16.100
Stream #0:0(eng): Video: mpeg1video, yuv420p(tv, bt709, progressive),
512x288 [SAR 1:1 DAR 16:9], q=2-31, 2123 kb/s, 25 fps, 90k tbn (default)
Metadata:
creation_time : 2022-11-02T15:43:01.00Z
vendor_id : TELE
encoder : Lavc59.18.100 mpeg1video
Side data:
cpb: bitrate max/min/avg: 2123200/2123200/2123200 buffer size: 327680
vbv_delay: N/A
Stream #0:1(eng): Audio: mp2, 48000 Hz, stereo, s16, 160 kb/s (default)
Metadata:
creation_time : 2022-11-02T15:43:01.00Z
vendor_id : [0][0][0][0]
encoder : Lavc59.18.100 mp2
[mpeg1video @ 01734eea26c0] warning, clipping 1 dct coefficients to
-255..255speed= 6.9x
Last message repeated 1 times
Le ven. 2 déc. 2022 à 11:47, Cédric Cochennec
a écrit :
> Hi all
>
> I am trying to understand and set things up for mpeg streams options in
> ffmpeg.
> Let's do this with mpeg1video codec in mpg container.
>
> I peaked up this command line in ffmpeg documentation wich work perfectly
> well :
>
> -f vcd -muxrate 1411200 -muxpreload 0.44 -packetsize 2324
> -s 352x288 -r 25
> -codec:v mpeg1video -g 15 -b:v 1150k -maxrate:v 1150k -minrate:v 1150k
> -bufsize:v 327680
> -ar 44100 -ac 2
> -codec:a mp2 -b:a 160k
>
>
> Now, I tried several changes to achieve bit_rate=2.123200 Mbit/s and
> overall bit_rate=2.332245 Mbit/s but with little success for readability,
> error buffer underflow etc...
>
> What would be the setup of these options :
>
>- -muxrate
>- -muxpreload
>- -packetsize
>- -b:v
>- -maxrate:v
>- -bufsize:v
>
> Many thanks for your help
>
> Cédric
>
>
>
>
>
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