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Settings / what would you do?
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Joined: 12/27/2012(UTC) Posts: 5,216  Location: Belgium Thanks: 291 times
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vMix makes it very easy to connect a camera and start streaming & recording and it looks good sort of :-)
At some point one needs to tweak settings and preferences assuming they have their purposes (allowing for the fact that Martin has set basic settings as a good starting point)
What are your experiences , preferences and why?
footage subject: often fast subject movement and/or panning
example situation
camera source pal 1920x1080i HDMI
Capture card Startech USB3HDCAP
Camera Input:
- Input: Default - does it makes sence to change that to HDMI?
- Resolution 1920x1080
- Framerate Pal 50i
- Interlaced checkbox ? (see card settings below)
- Video Format : Default - does it makes sense to change ?
Now the capture card itself has settings options (Advanced Properties)
Custom Properties:
Device:
- Deinterlace: High Motion/ Low Motion/ Weave and BOB Fast (standard setting)
- Data Transfer Pipe : Auto (standard) / Isochronous / Bulk
Receiver:
- HDMI EQ: 2 meter/ 10 Meter(standard) /15~20 Meter ( purpose ?)
- HDMI Bandwidth: 50% / 75 % (standard) / 100% / 125% / 150% / 175%
- Output color Range: Bypass(Standard so vMix can deal with this?) / Shrink 0~255 -> 16~235 / expand 16~235->0~255
- Other: Auto Phase (standard off) , value option 0~63
Driver:
- auto resolution (checked standard) / frame rate adjustment etc
Recording:
preferences 1280x720 for easy transfer, reasonable file size without re-editing and playback on multiple types of customers machines, average 1 minute clips :
Frame rate: 50i 50p 25p ?
FFMPEG : Codec MPEG-2, MP4 ? Video Quality ?
or
MP4: Bit Rate? Profile?
Stream / external:
Frame rate: 50i 50p 25p ?
Application: FMLE or FFMPEG?
Quality (1500 bit rate 1280x720):
FMLE: profile? Level ? Keyframe frequency? autoadjust ?
or
FFMPEG: Profile? Level? Preset? keyframe frequency? Threads ? Network Buffer? Strict CBR? Keyframe Aligned?
Thank you
Guy
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Rank: Advanced Member
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Joined: 10/13/2012(UTC) Posts: 1,162  Location: Melbourne Thanks: 220 times
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If you can, bring the video in at 720p50 rather than 1080i50. (Assuming sport is the content) Set the master frame rate the same and record at that too. I record MPEG.ts @ 12 mb and get good results. MP4 is ok on win10 but is not fault tolerant. I stream using FFMPEG/AAC and data rate varies depending on bandwidth available.
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Rank: Advanced Member
Groups: Registered
Joined: 12/27/2012(UTC) Posts: 5,216 Location: Belgium Thanks: 291 times
Was thanked: 955 time(s) in 790 post(s)
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ask wrote:If you can, bring the video in at 720p50 rather than 1080i50. (Assuming sport is the content) Set the master frame rate the same and record at that too. I record MPEG.ts @ 12 mb and get good results. MP4 is ok on win10 but is not fault tolerant. I stream using FFMPEG/AAC and data rate varies depending on bandwidth available. Strange MP4 had no playback problem, MPEG did . in fact did not play at all in for example Windows Mediaplayer or had just statinary artifacts. must be missing something but even so if I didnt't a client could be Yes sports and windows 10
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