speeding transfert

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speeding transfert

jackyr
Hello
I am a volunter in a senior culture association, responsable for
streaming server application and have a question to vidéo gourous

We have a large DV file (about 4Gb) from each conference (once a week)
this dv file is encoded using ffmpeg supplying 2 differents flv files
(one 400kb/s
second 600kb/s)

We all are senior this means which we are working from home and we must
transfert from the team to the admin then from the admin to the server
this process is requiring about 7h total download and would like to
avoid or to
keep smaller (the admin and the video team are separated and can do both
tasks)

One supposed solution might be to slice a file in several parts et send
these
to Dropbox (as an exemple) and let the serveur fetching, concatenate and
running ffmpeg (a very large file is keeping vpn active and in case it
stops we have to
restart from start)
Do you thing it is possible to slice DV file and concatenate without too
much trouble ?
it seems it cannot be on flv easily
does somebody knows a better solution ? even complex requiring programming
thanks to all of you , ffmpeg is really a very powerfull tool

regards
jacky

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Re: speeding transfert

Jim Shupert, Jr.
well - this isn't a ffmpeg solution because it sounds like your
difficulty is data move/store/access.

How about you have your own ftp server
This would allow for not chopping up the video into dropBox valid size
then just use an ftp client, filezilla etc.

so you have dv25 --~ 4 GB .... so that is ~ 20 min?

do you really need 25Mbps of d1 411 & pcm audio??

could you deal w a really good mp4 , mov or wmv
meaning can your edit/view needs be satisfied with a smaller file?
So you might acquire as DV due to real world working means [ cam etc ]
but transcode that into something smaller - then send it .then That is >
flv & stream.
do not send the DV .... no need to chop -send -concat back together -
transcode to flv
a mp4 @ 5Mbps would be alot smaller and it ends up as a flv @ ~ 600kbps
anyhoo

On 10/3/2013 9:20 AM, jacky wrote:

> Hello
> I am a volunter in a senior culture association, responsable for
> streaming server application and have a question to vidéo gourous
>
> We have a large DV file (about 4Gb) from each conference (once a week)
> this dv file is encoded using ffmpeg supplying 2 differents flv files
> (one 400kb/s
> second 600kb/s)
>
> We all are senior this means which we are working from home and we must
> transfert from the team to the admin then from the admin to the server
> this process is requiring about 7h total download and would like to
> avoid or to
> keep smaller (the admin and the video team are separated and can do
> both tasks)
>
> One supposed solution might be to slice a file in several parts et
> send these
> to Dropbox (as an exemple) and let the serveur fetching, concatenate and
> running ffmpeg (a very large file is keeping vpn active and in case it
> stops we have to
> restart from start)
> Do you thing it is possible to slice DV file and concatenate without
> too much trouble ?
> it seems it cannot be on flv easily
> does somebody knows a better solution ? even complex requiring
> programming
> thanks to all of you , ffmpeg is really a very powerfull tool
>
> regards
> jacky
>
> _______________________________________________
> ffmpeg-user mailing list
> [hidden email]
> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
>
>

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Re: speeding transfert

jackyr

Le 03/10/2013 21:07, Jim Shupert a écrit :

> well - this isn't a ffmpeg solution because it sounds like your
> difficulty is data move/store/access.
>
> How about you have your own ftp server
> This would allow for not chopping up the video into dropBox valid size
> then just use an ftp client, filezilla etc.
>
> so you have dv25 --~ 4 GB .... so that is ~ 20 min?
>
> do you really need 25Mbps of d1 411 & pcm audio??
>
> could you deal w a really good mp4 , mov or wmv
> meaning can your edit/view needs be satisfied with a smaller file?
> So you might acquire as DV due to real world working means [ cam etc ]
> but transcode that into something smaller - then send it .then That is
> > flv & stream.
> do not send the DV .... no need to chop -send -concat back together -
> transcode to flv
> a mp4 @ 5Mbps would be alot smaller and it ends up as a flv @ ~
> 600kbps anyhoo
>
> On 10/3/2013 9:20 AM, jacky wrote:
>> Hello
>> I am a volunter in a senior culture association, responsable for
>> streaming server application and have a question to vidéo gourous
>>
>> We have a large DV file (about 4Gb) from each conference (once a week)
>> this dv file is encoded using ffmpeg supplying 2 differents flv files
>> (one 400kb/s
>> second 600kb/s)
>>
>> We all are senior this means which we are working from home and we must
>> transfert from the team to the admin then from the admin to the server
>> this process is requiring about 7h total download and would like to
>> avoid or to
>> keep smaller (the admin and the video team are separated and can do
>> both tasks)
>>
>> One supposed solution might be to slice a file in several parts et
>> send these
>> to Dropbox (as an exemple) and let the serveur fetching, concatenate and
>> running ffmpeg (a very large file is keeping vpn active and in case
>> it stops we have to
>> restart from start)
>> Do you thing it is possible to slice DV file and concatenate without
>> too much trouble ?
>> it seems it cannot be on flv easily
>> does somebody knows a better solution ? even complex requiring
>> programming
>> thanks to all of you , ffmpeg is really a very powerfull tool
>>
>> regards
>> jacky
>>
>> _______________________________________________
>> ffmpeg-user mailing list
>> [hidden email]
>> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
>>
>>
>
> _______________________________________________
> ffmpeg-user mailing list
> [hidden email]
> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
>
Many thanks Jim
i was quite affraid on making a ftp server (I have a lot of security
constraints)
but I think it is the best solution and I will move on

by the way is there a way to exhange programming tricks related to ffmpeg ?
we are several using batch files it will be great to share solved points

exemple : In case you run   ffmpeg  -list_devices true -f dshow -i dummy
you'll get webcam model name which might include acents and/or special
caracters
(mine is video="Périphérique vidéo USB")
accents cannot be handled very well with dos batch
I found a trick which may help the community and ready to share

regards
jacky


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Re: speeding transfert

Jim Shupert, Jr.
Many thanks Jim
> i was quite affraid on making a ftp server (I have a lot of security
> constraints)
> but I think it is the best solution and I will move on
you may wish to look at vsftp { very secure ftp } on a linux machine
in fact - run ffmpeg on the same machine
>
> by the way is there a way to exhange programming tricks related to
> ffmpeg ?
> we are several using batch files it will be great to share solved points
well.
You could always post here
I would love to know

best of luck
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