`buffer underflow' error message
I do: $ ffmpeg -i minpian.wav -i minpian.m2v -target dvd -acodec pcm_s16be -b 8000k -s 720x576 -ab 1536k -ac 2 -r 25 minpian.mpg and get the following: [...] [dvd @ 0x8311670]buffer underflow i=1 bufi=4026 size=4096te= 344.9kbits/s [dvd @ 0x8311670]packet too large, ignoring buffer limits to mux it [...] Please help thanks Rodolfo
Hola, Rodolfo Medina said:
I do:
$ ffmpeg -i minpian.wav -i minpian.m2v -target dvd -acodec pcm_s16be -b 8000k -s 720x576 -ab 1536k -ac 2 -r 25 minpian.mpg
and get the following:
[...] [dvd @ 0x8311670]buffer underflow i=1 bufi=4026 size=4096te= 344.9kbits/s [dvd @ 0x8311670]packet too large, ignoring buffer limits to mux it [...]
I remember someone posted an explanation to this message some time ago. You will need to use Gmane to look for it in the archives of this mail list. Probably, your video source can be compressed into much less than the 8000kbits/s you are asking for. I would use "-sameq" instead. Saludos, V?ctor
On Thu, Dec 25, 2008 at 11:24 PM, V?ctor Paesa <wzrlpy at arsystel.com> wrote:
Rodolfo Medina said:
I do:
$ ffmpeg -i minpian.wav -i minpian.m2v -target dvd -acodec pcm_s16be -b 8000k -s 720x576 -ab 1536k -ac 2 -r 25 minpian.mpg
and get the following:
[...] [dvd @ 0x8311670]buffer underflow i=1 bufi=4026 size=4096te= 344.9kbits/s [dvd @ 0x8311670]packet too large, ignoring buffer limits to mux it [...]
Probably, your video source can be compressed into much less than the 8000kbits/s you are asking for. I would use "-sameq" instead.
Thanks, but also with 80 in place of 8000 or with -sameq in place of -b 8000 the error message remain. And the `cat' produces noise. Bye Rodolfo
Le 26 d?c. 08 ? 00:44, Rodolfo Medina a ?crit :
On Thu, Dec 25, 2008 at 11:24 PM, V?ctor Paesa <wzrlpy at arsystel.com> wrote:
Rodolfo Medina said:
I do:
$ ffmpeg -i minpian.wav -i minpian.m2v -target dvd -acodec pcm_s16be -b 8000k -s 720x576 -ab 1536k -ac 2 -r 25 minpian.mpg
and get the following:
[...] [dvd @ 0x8311670]buffer underflow i=1 bufi=4026 size=4096te= 344.9kbits/s [dvd @ 0x8311670]packet too large, ignoring buffer limits to mux it [...]
Probably, your video source can be compressed into much less than the 8000kbits/s you are asking for. I would use "-sameq" instead.
Thanks, but also with 80 in place of 8000 or with -sameq in place of -b 8000
read again Victor answer:
your video source can be compressed into much less than the 8000kbits/s you are asking for
you just want to remove the warning? just increase bitrate (to 18 000 k ;-)) and or VideoBufferSize (=more than 224KiB, if my memories are correct) you will lose DVD standard but remove the warning :-D PS (tips): add noise reduction, and/or fixed gop, and you will reduce the necessary bitrate to compress each picture so, the picture will fit the DVD buffer bye Herv?
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