Aaron Star
Forum Replies Created
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You should post media info on a clip from the phone.
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If you downloaded FFMEG, be sure to add the directory to your path statement. Google this if you do not know what I mean. Alternatively your can add FFMPEG to your windows directory but its harder to keep track of the version.
Then inside the folder with the .MOV files, do a Shift+right click and choose “Open command prompt here”
Then try the following statement.
ffmpeg -i (inputfilename).mov -vcodec copy -acodec copy (outputfilename).mp4
There might be some tweeks to get the audio and video mapped to the MP4 correctly. Also converting to -acodec pcm_s16le -ar 48000 -ac 2 would be a good thing to do at the same time. Use the uncompressed audio format that best fits your systems playback, for example 96khz-24bit if you have uber playback hardware.
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You would want to max your “Compute Units” on the device you choose. For instance, the 390X has 44 compute units, while the RX480 only has 33. The 390X is 5900 GFLOPs vs 5100 GFLOPs. The 480 is however the latest chipset with the most contemporary feature set that other apps or future apps may take advantage of.
For Vegas I would rank stats on a GPU in this order:
- GFLOP Performance
- Compute Units – for OpenCL performance
- Onboard Memory
- The most contemporary display port interfaces — Determine what your planned monitor will max out at here, and make sure your GPU supports this. Display Port is the better way to interface your monitor, but if you plan on using HDMI, make sure your HDMI version is maxed out.
Dual CPU motherboards would be Xeon CPU class systems only these days. There used to be AMD boards with this capability, but Xeon compute power is far superior and more stable. The AMD x370-1800X might be something to investigate, as well as the x99-5960x/6960X. Good Xeon Chips are very expensive, and the cheaper ones in dual mode are likely not faster than say a 5960 single. Compare GLFOPs on processors, that will offer a general rule of thumb for performance.
With motherboards:
- Look at DMI bridge bandwidth or QPI bandwidth (Xeon) and get the most contemporary versions.
- Compare motherboard DPC latency, and choose a manufacturer that does well here.
- Prefer Quad channel DDR4 memory interfacing vs Dual Channel
- Prefer 32+ PCI lanes off the CPU directly to interface slots, avoid desktop boards that use the chipset to supply more PCIe slots. This will be best for additional GPUs, capture cards, 10gbs NIC, SSD Hard card, or other high bandwidth interface devices.
- Choose an 80Plus certified power supply that is 50% more than you calculate your needs. Power supplies fade over time as caps get old.
- choose storage interfaces like NVME, or SAS vs SATA as these are full duplex storage interfaces with more random IO ability.
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Youtube supports up to 8k these days.
Your smoothest HD codecs to edit in Vegas will be HDCAM-SR-Lite, XDCAM422.MXF, XDCAM-EX.MXF, or Cineform.avi. XDCAM is a highly optimized workflow in VEGAS utilizing the GPU well for both rendering and Timeline playback.
If you edit or render out in XDCAM format, you can render to xdcam and directly upload the file to youtube.
This all assumes your system is powerful enough to handle smooth HD playback in the first place.
You could also try converting your 3K to cineform.avi and see if the playback is good enough. Make to use the Preview half or draft half settings on the preview for editing, and Best Full only to see effect results or CC. That will help with playback issues the most.
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The 1080 would only improve rendering with timeline computations of effects, and a very small amount of codec computation. I think the real issue would be the stability of the NVidia’s support of OpenCL. There is also the recent issue that people had with Vegas preview and the NV lastest drivers.
We should be seeing the release of AMD Vega in the next month or so. The Vega GPU will have 8GB of HBM2 and perform at 12.5 TFLOPS. The 1080ti is around 10 TFLOPS.
The fastest CPU, optimizing your motherboard architecture, and running 16-32GB of the fastest stable memory you can stick on your MB will be the best improvements for Vegas rendering. Clearly you want a good GPU that will help plow through the tough timeline effects that benefit from OpenCL computation abilities. The GPU adds certain enhanced math abilities that far exceed the performance of the CPU, but does not handle all aspects of the timeline or rendering like the CPU.
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The 8800 GT is only like 75GFLOPS. That card is really old by vegas 14 standards. To put things in perspective, the Vegas 11 minimum GPU was 1500 GFLOPS capable, and the AMD 5770 recommended. Vegas 14 was built during the time of the R9-290X, 390X, and R9-Fury cards. Those card are around 5600 to 8600 GFLOPs capable. If your GPU is that old, then the rest of your system might be that old as well. What does the rest of your computer look like in terms of CPU, mother board and RAM amounts?
You really should look into a better GPU that will work properly with Vegas 14. One of these would be best in order of compute performance:
5770
R9-270x
6970
7970-GHz
RX480
R9-290x/390x
R9-FuryXYou might try swapping the video DVI cables and seeing if the other port works better with the external mode of operation. Since that 8800 has an S-Video port along side the DVI ports, sometimes those ports were wired weird. You would think you could run 2 monitors plus an analog video output but most did not support this. You generally only got either the DVI or the SVideo port. Swapping the ports might resolve external full screen output problem. I know you are not trying to use the svideo port, just saying that if that if the DVI tied to the svideo is the one trying to be used for external display, this might help.
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“Channel(s) : 16 channels” are you sure you are reading the channels with audio?
In vegas right click on the file properties and check what .DLL is being used to read the file.
LPCM is basic uncompressed audio, so your audio stack might be screwed with some 3rd party player, audio driver, or external audio device.
Do you have another machine you can load up a trial version of vegas, and see if that clean install reads the audio?
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Some screen shots of your project settings, and media info on your source media would help.
Try a new blank project, and drag and drop one source clip to the timeline. Then see if you still have the artifact problems.
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Vegas does not support Avid.MXF which has always seemed nutty to me as a “Pro” product.
I would try to export to DNxHD/HR in .mov container. Then use FFMPEG to -vcodec copy and -acodec copy the media to a new .MXF format. You may need some extra instructions as to mapping the audio channels from mov to mxf. Then verify playback in AVID. This would keep you from re-encoding the video another generation.
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“Best non-compressed codec (PRO-RES or DNXHD” both of which are compressed, along with the Cineform suggestion.
The best uncompressed codec in Vegas is EXR. If you are doing short AE animations, compositing, and transitions. Why not use image sequences the way the pros do? You can use PNG too, if exr is to alien.