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Can't open a specific video file?

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Daniel Mango
Can't open a specific video file?
on Jul 3, 2017 at 12:26:09 am
Last Edited By Daniel Mango on Jul 3, 2017 at 12:30:05 am

I've been trying for a while to open a video file in Sony Vegas, as it gives me a message saying either it has been corrupted or is an unknown file type.

Here are the specifications:

format: mp4

video encoder: libx264 (h264 i'm guessing)
pixel format: yuv420p
- 40 mbps

audio encoder: ac3
sample format: fltp
sample rate: 48k
bitrate: 320 kbps

I am able to change these settings when recording, but i'm not sure what video encoder works with which audio encoder, container, etc.

Can anyone help?



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Graham Bernard
Re: Can't open a specific video file?
on Jul 3, 2017 at 8:19:22 am

[Daniel Mango] "Can anyone help?"
Get the free download of MediaInfo. Point it at your file. Get the reports and bring 'em back here.

* Grazie

Video Content Creator and Potter
PC 7 64-bit 16gb * Intel® Core™i7-2600k Quad Core 3.40GHz * 2GB NVIDIA GEFORCE GTX 560 Ti
Cameras: Canon XF300 + PowerShot SX50HS Bridge


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Daniel Mangoianu
Re: Can't open a specific video file?
on Jul 3, 2017 at 9:41:12 pm

Alright, I did what you asked. Here is the report in 'text' format:

General
CompleteName : D:\ADD MOTION BLUR.mp4
Format : MPEG-4
Format_Profile : Base Media
CodecID/String : isom (isom/iso2/avc1/mp41)
FileSize/String : 2.61 GiB
Duration/String : 9 min 9 s
OverallBitRate/String : 40.8 Mb/s
Encoded_Application/String : Lavf56.40.101

Video
ID/String : 1
Format : AVC
Format/Info : Advanced Video Codec
Format_Profile : High@L5
Format_Settings_CABAC/String : Yes
Format_Settings_RefFrames/String : 5 frames
CodecID : avc1
CodecID/Info : Advanced Video Coding
Duration/String : 9 min 9 s
BitRate/String : 40.0 Mb/s
Width/String : 1 920 pixels
Height/String : 1 080 pixels
DisplayAspectRatio/String : 16:9
FrameRate_Mode/String : Constant
FrameRate/String : 60.000 FPS
ColorSpace : YUV
ChromaSubsampling/String : 4:2:0
BitDepth/String : 8 bits
ScanType/String : Progressive
Bits-(Pixel*Frame) : 0.322
StreamSize/String : 2.59 GiB (99%)
Encoded_Library/String : x264 core 148 r2665 a01e339
Encoded_Library_Settings : cabac=1 / ref=5 / deblock=1:0:0 / analyse=0x3:0x113 / me=umh / subme=8 / 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=12 / lookahead_threads=2 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=50 / rc=abr / mbtree=1 / bitrate=40000 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00

Audio
ID/String : 2
Format : AC-3
Format/Info : Audio Coding 3
Format_Settings_Endianness : Big
CodecID : ac-3
Duration/String : 9 min 8 s
BitRate_Mode/String : Constant
BitRate/String : 320 kb/s
Channel(s)/String : 2 channels
ChannelPositions : Front: L R
SamplingRate/String : 48.0 kHz
FrameRate/String : 31.250 FPS (1536 SPF)
BitDepth/String : 16 bits
Compression_Mode/String : Lossy
StreamSize/String : 20.9 MiB (1%)
ServiceKind/String : Complete Main
Default/String : Yes
AlternateGroup/String : 1


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Graham Bernard
Re: Can't open a specific video file?
on Jul 4, 2017 at 3:22:43 am
Last Edited By Graham Bernard on Jul 4, 2017 at 9:09:04 am

Good. This has confirmed the audio is AC3. Vegas has a history of difficulty with importing AC3, there are some exceptions and workflow workarounds to this, but mostly it's not a good idea to involve AC3 anywhere in the import workflow. You can go ahead and research the options in getting AC3 into VP. My thoughts would be to irradicate any AC3 Capture.

Also do check the part of the MediaInfo reporting logs that reveal the available CODEC on your PC. This will further indicate if your PC will deal with both the Video and Audio content.

I hope some of this helps.

* Grazie

Video Content Creator and Potter
PC 7 64-bit 16gb * Intel® Core™i7-2600k Quad Core 3.40GHz * 2GB NVIDIA GEFORCE GTX 560 Ti
Cameras: Canon XF300 + PowerShot SX50HS Bridge


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Daniel Mangoianu
Re: Can't open a specific video file?
on Jul 4, 2017 at 7:08:41 pm

Would there be a way to convert the AC3 to lossless format without re-recording the entire thing? Any free programs that would do so?


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Graham Bernard
Re: Can't open a specific video file?
on Jul 5, 2017 at 5:15:20 am

[Daniel Mangoianu] "Would there be a way to convert the AC3 to lossless format without re-recording the entire thing?"
On a tangential approach I've imported my own DVDs back into Vegas Pro. These where DVDs I'd created/burnt using DVDA. Now, realise that these would have been videos compressed down to a lower res MPEG. So how lossless you'd want, I dunno!

Any free programs or any programs I'd point you to? I haven't used nor needed to - sorry 😐 .... My workflows are straightforward and have been honed down by bad hard-knock purchases I've made over the decades, resulting in a wish to keep my Capture to Import to Edit to Deliver as seamless and as simple as I can, leaving me free to do the fun thing, being creative! 😁

Seriously, there should be something out there, but finding it or modding it for your needs is beyond my abilities.

* Grazie

Video Content Creator and Potter
PC 7 64-bit 16gb * Intel® Core™i7-2600k Quad Core 3.40GHz * 2GB NVIDIA GEFORCE GTX 560 Ti
Cameras: Canon XF300 + PowerShot SX50HS Bridge


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