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

[Stuart Porter]

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
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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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