Questions tagged [prores]
An intermediate video codec.
49
questions
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1answer
20 views
Transcoding from AVC to ProRes: Are there any negatives that would happen to the footage?
I've shot a short film and the files are using AVC codec within an .MP4 container. I'm wondering whether transcoding to say Quicktime (ProRes 422 HQ) would have any negatives that come with it.
I ...
0
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0answers
26 views
How to convert from a DNG sequence to Prores Raw?
I can’t find any code relating to how to create Prores RAW from scratch… I’m just wondering if anyone is aware of any commercial products that convert DNG sequences to ProRes Raw. Or is there any ...
0
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1answer
14 views
FFMPEG to make Quicktime reference MOV file from ProRes MOV source
I'm trying to figure out how to use FFMPEG to make a reference MOV from a ProRes MOV source.
I've found commands that will take reference file and make a rendered ProRes MOV file
ffmpeg -enable_drefs ...
0
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2answers
972 views
Convert ProRes RAW to CinemaDNG or Blackmagic RAW
I want to convert ProRes RAW files (.mov extension) to an open source format such as CinemaDNG or Blackmagic RAW. Is it possible? If so, how?
0
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0answers
23 views
Can two spinning drives in RAID 0 configuration support 4K ProRes Raw data rates?
I'm helping a friend to assess external storage options. We are hoping that a Lacie 2big will be fast enough to support a 4K final cut work flow. Can two spinning 7200RPM drives configured as RAID 0 ...
1
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0answers
78 views
Audio clipping after amerge in FFmpeg
Hoping someone out there can help me with this audio issue I'm having using FFmpeg. I've written a bash script using FFmpeg that processes as source a broadcast quality ProRes (HQ) file with four mono ...
0
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0answers
22 views
Add a cross-fade to a ProRes clip
I have a ProRes 422 HQ trailer clip that is about 70 seconds. I would like to add a 0.5s cross fade (to black/silence) at the head and tail of the clip. The output file must have the exact same ...
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0answers
51 views
ffmpeg prores 4444 banding
Converting an existing clean 8k Quicktime Prores 444 file in FFmpeg yields banding. It's a lenflare with a completely smooth gradient from center out to edge of frame (no alpha). If I use AE2020 to ...
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0answers
128 views
Do you always need to convert videos with a YUV color space for compositing in Blender?
I have a 10 bits .mov file with YUV color space encoded prores 422HQ of some green screen footage. -Do we always need to convert videos with a YUV color space for compositing work?
If I want to ...
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0answers
342 views
Why won't certain videos preview in MacOS Finder any more?
It used to be possible to preview all ProRes and PNG sequence .mov video files in the Finder in MacOS, by selecting the file and pressing the spacebar.
Now it isn't. It's a pain. Is there a workaround?...
2
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1answer
2k views
Intra-frame H.264 / H.265 compared to DNxHR or Prores as intermediate codecs for editing
IMPORTANT: ISSUE SOLVED (STILL A COUPLE OF QUESTIONS, THOUGH), I POSTED SOME INFO BELOW THE ORIGINAL POST AS AN UPDATE IF SOMEONE FINDS THIS USEFUL:
Quick question: what are the advantages of using ...
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0answers
341 views
ffmpeg ProRes to MP4 Alters Colors Slightly
I cannot for the life of me figure out what is going wrong, but I have a ProRes MOV file with the following specifications:
And I want to convert it to a 4:2:0 MP4 video file. Every time I attempt ...
0
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0answers
215 views
ffmpeg prores alpha channel quantization looks pretty bad
Might be related to this other ticket?
I've been doing some prores tests for both color and alpha. Usually this isn't a big deal since my alpha channels are solid with a 1-2pixel transition to black....
0
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1answer
412 views
ffmpeg prores alpha channel not present when colormatrix and colorspace operations are performed
So I've figured out how to convert images to prores with no colorspace shifts using either:
-vf colormatrix=bt601:bt709 filter for 8bit material
and
-vf colorspace=all=bt709:range=pc:format=...
1
vote
1answer
182 views
ffmpeg colormatrix operations only for 8bpc?
Unless I'm bad at reading, this page states that colormatrix is only good for 8 bpc.
From Colorspace support in FFmpeg:
... colormatrix produces horrible quality for anything > 8bpc (8-bit per ...
0
votes
1answer
168 views
Can't tell if prores4444XQ is any different than prores4444 in ffmpeg 4.1
Using ffmpeg 4.1 and prores_ks codec. I've encoded various clips into 4444 and 4444XQ. All play and look fine but when I try to use -pix_fmt yuv444p16le for 4444XQ I get the warning:
Incompatible ...
1
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0answers
147 views
How to specify 422 8bit ProRes with ffmpeg?
I understand that if I want 444 10 bit, I use pix_fmt yuva444p10le, but what about if I want 8 bit 422? Using yuv422p does not work, and if I leave the pix_fmt field blank ffmpeg always defaults to ...
1
vote
1answer
605 views
Prores ffmpeg questions
I am trying to understand how to use Prores Kostya with FFmpeg, and I have a few questions regarding this:
I have a Panasonic G85 and Gopro Hero 7 black which I used to shoot 4k in. For 4k footage, ...
1
vote
1answer
792 views
what could prevents MPC-HC from opening and playing mov file?
... and the strangest thing is that the very same file plays back just fine on a different (but very much identical) Win 10 system.
The file is a .mov prores video file. Both system have prores ...
0
votes
1answer
310 views
How to slow down ProRes file from 25fps to 16fps without re-encoding?
This works to change the speed, but it also changes the codec to MPEG4 Video (H264).
ffmpeg -y -r 16 -i at25fps.mov -filter:v "setpts=25/16*PTS" at16fps.mov
I need the codec to stay untouched: ...
1
vote
2answers
2k views
Convert to ProRes with ffmpeg adds unwanted contrast to footage
I'm trying to convert H.264 footage from a Panasonic EVA1 camera to Apple ProRes with ffmpeg. However no matter which setting I use, the output file has slightly more contrast than the original input ...
2
votes
1answer
276 views
Is MP4 a valid or common container for ProRes?
Is MP4 a valid or common container for ProRes? I've only seen it in MOVs and MXFs.
0
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1answer
113 views
Source ProRes 422 Proxy / Edit / Export to ProRes 422 proxy?
Wondering what exporting best practice is when working on source clips that are captured ProRes 422 Proxy.
I've c-corrected/graded these clips in DaVinci.
When it's time to 'Add to Render Queue', do ...
2
votes
1answer
337 views
White balance auto-adjusted half way through recording
Unbeknownst to me at the time, the camera I was using to record a talking head (so fixed environment and lighting) seems to have drastically altered its colour temperature part-way through recording. ...
0
votes
1answer
33 views
Is footage recorded through external recorder really better?
Most DSLRs offer 8-bit recording, 4:2:0 with 100mb/s 50/mb/s 500mb/s in their own containers.
Why would shooting with an external recorder (let's say ProRes HQ or 422), make the picture look better ...
1
vote
1answer
1k views
Are ffmpeg prores files reliable enough to be used in production/broadcast environment?
Recently I'm transcoding a lot of material that I wish to use in broadcast and production environment where they use all sort of macs and apple software.
I'm not very fan of apple computers and I ...
1
vote
1answer
1k views
YouTube Upload Gamma Shift
I've just finished a music video in Resolve and exported it as Mov/Prores422HQ. It looks correct when played back in Quicktime and in VLC, however when I upload to YouTube, there is a huge gamma shift ...
4
votes
1answer
4k views
What are the differences between the three bundled ffmpeg prores encoders?
I'm using ffmpeg and while looking through the list of codes with ffmpeg -codecs I realized there are actually three different prores encoders:
prores
prores_aw
prores_ks
What are the differences ...
5
votes
1answer
2k views
Bad quality encodes to Prores4444 with alpha from ffmpeg
EDIT: This bug has been fixed. If you're experiencing the problem below, try updating ffmpeg
I need to supply video with alpha as a prores4444 encoded file. I've been trying to use ffmpeg, but for ...
1
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2answers
4k views
ProRes444 Codec download process to Adobe Media Encoder
I am using MacOS Sierra and am trying to download the ProRes444 Codec in order to export my Adobe After Effects 4k RED footage in this format (probably using Adobe Media Encoder based on what I have ...
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1answer
48 views
Which gives better prores bmpcc or 600d with atomus nimja 2
Which gives better prores bmpcc or 600d with atomus nimja 2. Which kit to buy.
1
vote
1answer
2k views
FFMPEG prores_ks 4444 color shift
I am attempting to encode "ProRes 4444" movies with ffmpeg. Some research led me to the "prores_ks" encoder, which is the only one of ffmpeg's prores encoders that supports "4444".
I used this ...
15
votes
3answers
16k views
H.264 or VP9 for encoding for YouTube?
I make short films which I distribute through YouTube. I know YouTube uses VP9 for streaming, but YouTube still recommends uploading with h.264. It makes more sense to me to upload in as similar a ...
4
votes
1answer
3k views
ffmpeg concatenation introduces video stutter but does not affect audio
I've gone through several different variants of this process and it always causes me problems. I've gotten it working sometimes but it doesn't seem to be consistent.
I have a video camera which ...
2
votes
2answers
982 views
If I shoot in H.264 is it worth it to export the product in ProRes?
I shoot video in H.264. I assume that my footage is forever compressed really small and that exporting to ProRes in FCPX would do nothing but make my file bigger. Is this true? Or am I missing ...
2
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0answers
842 views
Can you edit Apple ProRes in iMovie '11?
I have an older Mac Pro, and I am not able to run Final Cut Pro X because of graphics card limitations. However, because I have it installed, it seems like the codecs are present that are required ...
3
votes
1answer
2k views
Troubleshooting XDCAM import into Premirere Pro CC 2014
I am in the middle of editing a TV spot we create bi-weekly and therefore on a tight timeline. I am using Premiere Pro CC (2014) just upadted last week on Win8.1, 4790k, 16GB, OS SSD 256GB, Project ...
2
votes
1answer
5k views
Can't Import Video with Alpha to Premiere
This is really annoying. I've heard a lot about how Apple have removed a lot of different codec uses including the most needed Quicktime RGB+Alpha one in After Effects. I can no longer import videos ...
20
votes
5answers
35k views
How to encode Apple ProRes on Windows or Linux?
Is it also possible to encode video with Apple ProRes on Windows and Linux?
4
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1answer
3k views
Converting MLV to Prores
I have some Magic Lantern Raw footage that I want to convert to Prores 444 for use in this workflowenter link description here.
I understand the process, other than the use of LUTs.
In the process, ...
0
votes
1answer
36 views
Re-encoding Archival Movies
I have some old quicktime movies from a project I did in 2005. The client came back recently and wants to do some changes and run off a new version, and since I've got all his media restored at the ...
6
votes
2answers
10k views
Can H264 achieve "equivalence" with ProRes 422?
Has anyone done or seen any tests comparing Apple ProRes 422 with high-bitrate H.264?
We use 422 as a delivery format to go to DCP for theatrical versions of trailers.
The bitrate is around 150mbps.
...
3
votes
1answer
2k views
Premiere Pro PC timeline only plays for a few frames and then no Audio after installing Miraizon DNxHD / ProRes Codec
Since installing Miraizon DNxHD / ProRes Codec I am not able to play my timeline in real-time. It gives me a few frames and then the video freezes and audio keeps playing. I changed from Performance ...
1
vote
1answer
241 views
Batch splitting ProRes into equal-length segments
I routinely have to take ProRes footage and break it up into twenty minute segments of both ProRes and h.264. The computer I'm currently using to do this does has Premiere but not FCP. Any ideas on ...
2
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0answers
130 views
What hardware should I get for a conversion farm for MXF => Prores
I currently use a mac pro for importing mxf files into FCP (equivalent to converting to prores, I believe) at about 3x realtime @29.97fps. I want to get a machine to run ffmpeg & do the ...
2
votes
2answers
258 views
Where does the 'extra' data come from when transcoding video?
This is something I've never quite understood, but have always wondered. Forgive my basic knowledge here, but I've tried to research this without a specific answer as to what is going on.
When I ...
0
votes
1answer
225 views
Why is after effects turning my Prores audio into white noise
I have some footage that I converted from red to prores444. I am able to view the converted mov in quicktime and the audio sounds fine. However, I when import it to Efter Effects, the audio previews ...
2
votes
2answers
506 views
Problem exporting a mixture of PAL and ProRes 422 in FCP
I have a FCP sequence made of a mixture of ProRes 422 and PAL clips. As soon as I export it using "QuickTime Movie" (Apple ProRes 422 PAL 48KHz option), the quality of the ProRes clips is superb, but ...
10
votes
2answers
8k views
The ProRes of Premiere Pro?
I'm going to be editing more and more DSLR videos, most notably music videos for my band as we start releasing singles and want to know if there is an intermediate format for both cutting and ...
