Hey,
I'm recording my source via OBS to .mp4, no problems with that when editing in Vegas, but this time I recorded a specific window with different resolution
I opening Vegas and just drag and drop my file, creating a new project.
While the preview is set to FULL I can see only a black screen in the preview window.
Once I switch it to half, the video is showing up and everything is OK
Why is that and how can I fix it?
@4sol-n As best I understand it, when previewing in half you are using say proxie of the original.
Ok, I see your link gives mediainfo of the file. Can you supply a downloadable sample for other users to test.
Its possible that vp cannot handle the odd frame size. By odd I do mean odd, not even, just a guess.
It's easier for users who wish to help you if you post the mediainfo here in this thread, without the external link.
@4sol-n As best I understand it, when previewing in half you are using say proxie of the original.
Ok, I see your link gives mediainfo of the file. Can you supply a downloadable sample for other users to test.
Its possible that vp cannot handle the odd frame size. By odd I do mean odd, not even, just a guess.
It's easier for users who wish to help you if you post the mediainfo here in this thread, without the external link.
Here it is:
https://filebin.net/xh7gpr9c7jdr3mxo
So the issue file - I used a special plugin to record a specific window (drawing app) which will crop your resolution to the resolution of the window of that app.
In normal state (normal file) the same recording options is capturing the whole screen.
Issue.mp4 have black screen
nomral.mp4 is OK
Ok, the "Normal" file doesn't download properly, I tried twice, both different sizes, neither VLC or MPC cannot play.
The "Issue" file plays in both those players but crashes VP18.
It plays with a black preview screen in VP17 and plays ok in VP16.
Will try later, heading out now, but can you try unchecking everything in options/preferences/file I/O, and anything else you can think of.
@4sol-n I don't use obs enough to tell you how to configure it to fix the problem but it looks like the issue-video has an unusual gop config. That's easy to fix with ffmpeg... just re-encode it and specify the same frame size. I used this ffmpeg command and the resultant new.mp4 clip plays just fine in Vegas 18:
ffmpeg -i "ISSUE_FILE.mp4" -c:v libx264 -vf scale=1248x1108 new.mp4
For reference, MediaInfo says this about the new.mp4:
General Complete name : C:\Users\hv\Downloads\gop adjust\new.mp4 Format : MPEG-4 Format profile : Base Media Codec ID : isom (isom/iso2/avc1/mp41) File size : 281 KiB Duration : 8 s 967 ms Overall bit rate mode : Variable Overall bit rate : 257 kb/s Writing application : Lavf59.2.102 Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : High@L4 Format settings : CABAC / 4 Ref Frames Format settings, CABAC : Yes Format settings, Reference frames : 4 frames Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 8 s 967 ms Bit rate : 245 kb/s Width : 1 248 pixels Height : 1 108 pixels Display aspect ratio : 1.126 Frame rate mode : Constant Frame rate : 30.000 FPS Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel*Frame) : 0.006 Stream size : 268 KiB (95%) Writing library : x264 core 163 r3059 b684ebe Encoding settings : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=18 / lookahead_threads=3 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=crf / mbtree=1 / crf=23.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00 Color range : Limited Color primaries : BT.709 Transfer characteristics : BT.709 Matrix coefficients : BT.709 Codec configuration box : avcC
While your issue clip looks like this... notice the GOP stuff missing above. And also the very limited cabac info specified in the issue-clip.
Complete name : C:\Users\hv\Downloads\ISSUE_FILE.mp4 Format : MPEG-4 Format profile : Base Media Codec ID : isom (isom/iso2/avc1/mp41) File size : 9.67 MiB Duration : 9 s 0 ms Overall bit rate mode : Variable Overall bit rate : 9 012 kb/s Writing application : Lavf58.29.100 Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : High@L4 Format settings : CABAC / 4 Ref Frames Format settings, CABAC : Yes Format settings, Reference frames : 4 frames Format settings, GOP : M=3, N=60 Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 9 s 0 ms Bit rate mode : Constant Bit rate : 9 000 kb/s Width : 1 247 pixels Original width : 1 248 pixels Height : 1 107 pixels Original height : 1 108 pixels Display aspect ratio : 1.126 Frame rate mode : Constant Frame rate : 30.000 FPS Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel*Frame) : 0.217 Stream size : 9.66 MiB (100%) Color range : Limited Color primaries : BT.709 Transfer characteristics : BT.709 Matrix coefficients : BT.709 Codec configuration box : avcC
Also looks like your OBS is using ffmpeg libs (Lavf58.29.100) that are a bit older than what I used (Lavf59.2.102).
So it's not something with Vegas or codecs as I received the following developer feedback:
odd frame sizes are not supported by all type of encoders, try making the source 1 pixel larger or smaller
@4sol-n I don't use obs enough to tell you how to configure it to fix the problem but it looks like the issue-video has an unusual gop config. That's easy to fix with ffmpeg... just re-encode it and specify the same frame size. I used this ffmpeg command and the resultant new.mp4 clip plays just fine in Vegas 18:
ffmpeg -i "ISSUE_FILE.mp4" -c:v libx264 -vf scale=1248x1108 new.mp4For reference, MediaInfo says this about the new.mp4:
General Complete name : C:\Users\hv\Downloads\gop adjust\new.mp4 Format : MPEG-4 Format profile : Base Media Codec ID : isom (isom/iso2/avc1/mp41) File size : 281 KiB Duration : 8 s 967 ms Overall bit rate mode : Variable Overall bit rate : 257 kb/s Writing application : Lavf59.2.102 Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : High@L4 Format settings : CABAC / 4 Ref Frames Format settings, CABAC : Yes Format settings, Reference frames : 4 frames Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 8 s 967 ms Bit rate : 245 kb/s Width : 1 248 pixels Height : 1 108 pixels Display aspect ratio : 1.126 Frame rate mode : Constant Frame rate : 30.000 FPS Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel*Frame) : 0.006 Stream size : 268 KiB (95%) Writing library : x264 core 163 r3059 b684ebe Encoding settings : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=18 / lookahead_threads=3 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=crf / mbtree=1 / crf=23.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00 Color range : Limited Color primaries : BT.709 Transfer characteristics : BT.709 Matrix coefficients : BT.709 Codec configuration box : avcCWhile your issue clip looks like this... notice the GOP stuff missing above. And also the very limited cabac info specified in the issue-clip.
Complete name : C:\Users\hv\Downloads\ISSUE_FILE.mp4 Format : MPEG-4 Format profile : Base Media Codec ID : isom (isom/iso2/avc1/mp41) File size : 9.67 MiB Duration : 9 s 0 ms Overall bit rate mode : Variable Overall bit rate : 9 012 kb/s Writing application : Lavf58.29.100 Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : High@L4 Format settings : CABAC / 4 Ref Frames Format settings, CABAC : Yes Format settings, Reference frames : 4 frames Format settings, GOP : M=3, N=60 Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 9 s 0 ms Bit rate mode : Constant Bit rate : 9 000 kb/s Width : 1 247 pixels Original width : 1 248 pixels Height : 1 107 pixels Original height : 1 108 pixels Display aspect ratio : 1.126 Frame rate mode : Constant Frame rate : 30.000 FPS Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel*Frame) : 0.217 Stream size : 9.66 MiB (100%) Color range : Limited Color primaries : BT.709 Transfer characteristics : BT.709 Matrix coefficients : BT.709 Codec configuration box : avcCAlso looks like your OBS is using ffmpeg libs (Lavf58.29.100) that are a bit older than what I used (Lavf59.2.102).
What program do you use and where should I type
ffmpeg -i "ISSUE_FILE.mp4" -c:v libx264 -vf scale=1248x1108 new.mp4