[FFmpeg-user] Support request - configuring ffmpeg for YouTube Live 60fps

Stuart Porter stuart.porter at ctvc.co.uk
Wed Apr 25 19:11:36 EEST 2018


However, if I increase the -rtbufsize to 1G I get this



Before it eventually fails

*Stuart Porter **| Head of Digital  *

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On 25 April 2018 at 17:02, Stuart Porter <stuart.porter at ctvc.co.uk> wrote:

> Thanks for replying Gyan, :-)
>
> We have tried adding that in yes, though admittedly not in the specific
> test config mentioned above.
>
> I get something very similar.
>
>
>
>
>
> *Stuart Porter **| Head of Digital  *
>
> *C**T**V**C* <http://www.ctvc.co.uk/> | McBeath House | 1st Floor | 310
> Goswell Road | London | EC1V 7LW
>
> <https://www.google.com/maps/dir//CTVC,+MacBeath+House,+310+Goswell+Rd,+London+EC1V+7LW,+UK/@51.5303537,-0.1033914,18.08z/data=%214m8%214m7%211m0%211m5%211m1%211s0x48760346117ae513:0x29b32b81d4111d0a%212m2%211d-0.1021599%212d51.5297478?hl=en-GB>(+44)
> 0207 940 8495 | (+44) 07870 233 359 | Skype: stuartctvc
>
> On 25 April 2018 at 16:53, Gyan Doshi <gyandoshi at gmail.com> wrote:
>
>>
>>
>> On 4/25/2018 9:15 PM, Stuart Porter wrote:
>>
>>
>>>   ffmpeg -f dshow -video_size 1920x1080 -r 60 -i video="AVerMedia Live
>>> Gamer
>>> HD 2":audio="Line (3- AVerMedia Live Gamer H" -r 30 -g 60 -s 1920x1080
>>> -quality good -speed 5 -threads 16 -row-mt 1 -tile-columns 3
>>> -frame-parallel 1 -qmin 4 -qmax 48 -b:v 7800k -c:v libvpx-vp9 -b:a 128k
>>> -c:a libopus -f webm rtmp://a.rtmp.youtube.com/live2/[my
>>> <http://a.rtmp.youtube.com/live2/%5Bmy> key]
>>>
>>> results in a string of failures such as
>>>
>>> [dshow @ 00000000003d4dc0] real-time buffer [AVerMedia Live Gamer HD 2]
>>> [video input] too full or near too full (272% of size: 3041280 [rtbufsize
>>> parameter])! frame dropped!
>>>
>>> We have tried adjusting the quality, speed, framerate and bandwidth but
>>> get
>>> very similar results each time.
>>>
>>
>> Have you tried changing the parameter indicated by the error msg?
>>
>> e.g.   -rtbufsize 256M  to be placed before  -i video=...
>>
>>
>> Gyan
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>
>
>

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