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

Thu Apr 26 11:55:33 EEST 2018

However the video is completely blank

*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 26 April 2018 at 09:50, Stuart Porter <stuart.porter at ctvc.co.uk> wrote:

> When i run that it seems fine
>
> c:\ffmpeg\bin>ffmpeg -f dshow -video_size 1920x1080 -r 60 -rtbufsize 1G -i
> video="AVerMedia Live Gamer HD 2":audio="Line
>  (3- AVerMedia Live Gamer H" -c copy -t 30 test.mov
> ffmpeg version N-90793-g30940be359 Copyright (c) 2000-2018 the FFmpeg
> developers
>   built with gcc 7.3.0 (GCC)
>   configuration: --enable-gpl --enable-version3 --enable-sdl2
> --enable-bzlib --enable-fontconfig --enable-gnutls --enabl
> e-iconv --enable-libass --enable-libbluray --enable-libfreetype
> --enable-libmp3lame --enable-libopencore-amrnb --enable-
> libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine
> --enable-libsnappy --enable-libsoxr --enable-l
> ibtheora --enable-libtwolame --enable-libvpx --enable-libwavpack
> --enable-libwebp --enable-libx264 --enable-libx265 --en
> able-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp
> --enable-libvidstab --enable-libvorbis --enable-l
> ibvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid
> --enable-libaom --enable-libmfx --enable-amf --enabl
> e-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec
> --enable-dxva2 --enable-avisynth
>   libavutil      56. 15.100 / 56. 15.100
>   libavcodec     58. 19.100 / 58. 19.100
>   libavformat    58. 13.100 / 58. 13.100
>   libavdevice    58.  4.100 / 58.  4.100
>   libavfilter     7. 18.100 /  7. 18.100
>   libswscale      5.  2.100 /  5.  2.100
>   libswresample   3.  2.100 /  3.  2.100
>   libpostproc    55.  2.100 / 55.  2.100
> [mjpeg @ 000000000037b780] Found EOI before any SOF, ignoring
> [mjpeg @ 000000000037b780] No JPEG data found in image
> Guessed Channel Layout for Input Stream #0.1 : stereo
> Input #0, dshow, from 'video=AVerMedia Live Gamer HD 2:audio=Line (3-
> AVerMedia Live Gamer H':
>   Duration: N/A, start: 248386.756000, bitrate: N/A
>     Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj422p(pc,
> bt470bg/unknown/unknown), 1920x1080, 60 fps, 60 tbr, 100
> 00k tbn, 10000k tbc
>     Stream #0:1: Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s
> Output #0, mov, to 'test.mov':
>   Metadata:
>     encoder         : Lavf58.13.100
>     Stream #0:0: Video: mjpeg (jpeg / 0x6765706A), yuvj422p(pc,
> bt470bg/unknown/unknown), 1920x1080, q=2-31, 60 fps, 60
> tbr, 15360 tbn, 60 tbc
>     Stream #0:1: Audio: pcm_s16le (sowt / 0x74776F73), 44100 Hz, stereo,
> s16, 1411 kb/s
> Stream mapping:
>   Stream #0:0 -> #0:0 (copy)
>   Stream #0:1 -> #0:1 (copy)
> Press [q] to stop, [?] for help
> frame= 1800 fps= 59 q=-1.0 Lsize=  333950kB time=00:00:29.96
> bitrate=91284.8kbits/s speed=0.982x
> video:328678kB audio:5254kB subtitle:0kB other streams:0kB global
> headers:0kB muxing overhead: 0.005557%
>
>
> *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 17:53, Gyan Doshi <gyandoshi at gmail.com> wrote:
>
>>
>> On 4/25/2018 10:09 PM, Stuart Porter wrote:
>>
>>> Thanks Guan,
>>>
>>> I pasted a screengrab there but it's been stripped out. I've left the
>>> office now but will find a way to send it later.
>>>
>>
>> Oh, got it then. They show up as attachments.
>>
>> With 1G, there's no longer a buffer error. Apparently, ffmpeg is finding
>> corrupted frames in the video input.
>>
>> Does the output of
>>
>>     ffmpeg -f dshow -video_size 1920x1080 -r 60 -rtbufsize 1G -i
>> video="AVerMedia Live Gamer HD 2":audio="Line (3- AVerMedia Live Gamer H"
>> -c copy -t 30 test.mov
>>
>> appear free of corruption or missing frames? And without those latest
>> errors?
>>
>> Gyan
>>
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>>
>
>

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