Proxies vs Transcoding for YouTube Footage
In short
Proxies keep the original YouTube file and add a lighter copy for editing, while transcoding replaces it with an edit-ready ProRes or DNxHR file. For YouTube sources, one transcode to an intraframe codec usually replaces a proxy workflow, because the original is a long-GOP delivery file that is heavy to decode. B-ROLL runs that conversion right after each download.
On this page
What is the difference between proxies and transcoding?
A proxy is a lightweight copy of a clip that you edit with while the original stays linked for the export. A transcode is a new edit-ready file, usually ProRes or DNxHR, that replaces the original from import to export.
Both routes fix a timeline that stutters because the editor cannot decode the source fast enough. The table compares them for footage downloaded from YouTube.
| Aspect | Proxy workflow | Transcode workflow |
|---|---|---|
| Files per clip | Two: the original download plus a proxy | One: the edit-ready .mov |
| When the work happens | Inside the editor, after import | Before import; B-ROLL converts right after each download |
| Timeline playback | Light while proxies are on | Easy to decode at full resolution, because ProRes and DNxHR are intraframe |
| What the export reads | The original AV1, VP9 or H.264 file | The ProRes or DNxHR file |
| Final render cost | Decodes the long-GOP original again | Reads intraframe frames, one at a time |
| Disk use | Small original plus a small proxy | One file, larger than the original |
| Relink and offline risk | Proxy and original must stay paired | Nothing to pair |
| Color and effects work | Viewer shows the proxy until you switch back | Viewer shows the file you deliver from |
Ema Zamboni, the video editor who built B-ROLL, ran into this on a DaVinci Resolve Studio timeline on Windows 11: 4K60 AV1 footage from YouTube was heavy to play back, and AV1 or VP9 downloads crashed Resolve at times. A proxy would have kept those files in the project; B-ROLL’s automatic ProRes and DNxHR conversion takes them out.
When do proxies make sense for YouTube footage?
Proxies make sense when a YouTube download is already on disk and cannot be fetched again, or when disk space matters more than a simple project. A proxy then costs one render in DaVinci Resolve, Premiere Pro or Final Cut Pro, and no new download.
Three situations favor proxies:
- The files are already on disk. A proxy works on the file you have; a transcode through B-ROLL means downloading the video again.
- The batch is huge and mostly reference. Hours of research footage you only scrub stay small as originals plus low-resolution proxies.
- Storage is tight or shared. A laptop drive or a shared server may not fit intraframe files for every source.
Proxies do not remove the source codec from the project. The export still decodes the long-GOP original, and a file that crashes your editor stays in the media pool. The mechanism behind that cost is explained in why H.264 and AV1 are hard to edit.
Why is a transcode simpler for YouTube sources?
For YouTube sources, one transcode to an intraframe codec usually replaces a proxy workflow. The original is already a compressed delivery file, so there is no camera master worth keeping in the edit, and an intraframe copy plays smoothly at full resolution on its own.
Proxy advice is written for camera originals, too heavy to edit and too valuable to replace. A YouTube download is the opposite. As of September 2026, a YouTube download with yt-dlp’s default format ranking usually holds VP9 or AV1 video, light on disk but heavy to decode, and a ProRes or DNxHR copy fixes the decode side without a second file to manage.
B-ROLL runs that transcode for you. Choose ProRes or DNx as the video format, and B-ROLL downloads the best streams into an MKV master, converts it with ffmpeg into a .mov, and deletes the master after a successful conversion. Resolution and frame rate are kept, and the audio becomes uncompressed 16-bit PCM. The full pipeline is on download YouTube videos in ProRes or DNxHR.
B-ROLL also picks the tier: it scales each tier’s reference data rate to the source’s resolution and frame rate, then takes the lightest tier that reaches 10 times the measured source bitrate.
A 1080p 30 fps source at 8 Mbps gets DNxHR SQ, which the app estimates at 124 Mbps, or 0.93 GB per minute (124 x 60 / 8 / 1000). In ProRes the same source gets 422 LT at 102 Mbps, or 0.77 GB per minute (102 x 60 / 8 / 1000).
Section downloads keep that cost down: a 60-second cutaway at those settings takes 0.93 GB, not the size of the full video. Every tier and its trade-offs are compared in best format to download YouTube videos for editing.
How do Resolve, Premiere and Final Cut Pro handle proxies?
DaVinci Resolve, Premiere Pro and Final Cut Pro all create proxies from clips already in a project and switch between proxy and original with a playback setting. The export reads the original unless you change a setting.
Final Cut Pro is the most documented of the three. Apple’s guide to creating optimized and proxy files says Final Cut Pro makes proxies as Apple ProRes 422 Proxy or H.264, at frame sizes from 12.5 percent to 100 percent of the original, and always keeps the original media.
- DaVinci Resolve: right-click clips in the Media Pool and choose Generate Proxy Media; the Playback menu decides whether the viewer prefers proxies or originals.
- Premiere Pro: create proxies from the Project panel or with an ingest preset, then switch the viewer with the Toggle Proxies button.
- Final Cut Pro: transcode to proxy media on import or later, then choose proxy playback in the viewer. Final Cut Pro runs on macOS, so copy the Windows
.movfiles to the Mac first.
The practical routes for each editor are in download YouTube videos for DaVinci Resolve and download YouTube videos for Premiere Pro and After Effects. Premiere Pro may refuse a VP9 or AV1 file outright, and a proxy cannot be made from a file the editor will not import.
What about Resolve’s optimized media and render cache?
Optimized media is a DaVinci Resolve copy of a clip in an edit-friendly codec, managed inside the project, and the render cache stores rendered frames of the timeline. Neither one replaces the downloaded original, and neither changes the file the export reads by default.
Optimized media sits between a proxy and a transcode. Resolve builds it from the original, uses it for playback when available, and keeps the AV1 or VP9 file as the source. Final Cut Pro has the same idea: Apple’s guide says optimized media is transcoded to Apple ProRes 422 for better editing performance.
The render cache solves a different problem: grades, effects and titles stacked on a clip. The decode cost of a long-GOP source stays in place for every uncached frame.
| Resolve option | What it stores | What it fixes | What the export reads by default |
|---|---|---|---|
| Proxy media | Smaller copies of each clip | Decoding and frame size in the viewer | The original clip |
| Optimized media | Edit-friendly copies inside the project cache | Decoding of heavy sources | The original clip |
| Render cache | Rendered frames of the timeline | Grades, effects and titles | The original clip |
| B-ROLL transcode | One ProRes or DNxHR .mov per download | Decoding, before import | The .mov itself |
When Resolve still stutters on a YouTube clip, the step-by-step fix is in YouTube video choppy in DaVinci Resolve? AV1 and VP9 fix. Every page on codecs for downloaded video sits in codecs and formats for editing YouTube footage.
Proxies or transcode: which should you pick for YouTube footage?
For YouTube footage you will cut with, pick the transcode: download as ProRes or DNxHR and edit the .mov. Pick proxies only for files you already hold, huge reference batches, or tight storage.
When to pick the transcode:
- The clip goes on a real timeline for cutting, color or effects.
- Your editor struggles with AV1 or VP9, or crashes on them.
- You want one file per shot, with no proxies to relink before export.
When to pick proxies:
- The download is already in the project and a second download is not practical.
- You only scrub the footage for reference and never deliver from it.
- Disk space cannot hold intraframe files for every source.
The verdict: a transcode to ProRes or DNxHR is the default for downloaded YouTube footage, and proxies are the fallback for files you already have. Generate proxies on top of a transcode only when a slow laptop still stutters on 4K intraframe files.
Frequently asked questions
Do proxies reduce quality in the final export?
No, as long as the export reads the original media. Proxies are editing stand-ins, and DaVinci Resolve and Premiere Pro render from the originals by default. With YouTube footage the original is the downloaded AV1, VP9 or H.264 file, so the final render decodes the downloaded file again at full quality and pays its full decoding cost.
Can I relink proxies to ProRes later?
Yes, when the ProRes file matches the original clip's duration and frame rate. Relink the clip's original media to the new .mov and the edit stays in place. A full-video conversion from B-ROLL keeps the source resolution and frame rate, so it lines up; a clip section covers a different range and has to be cut in again.
Which is faster to set up?
A transcode that happens at download time. In B-ROLL you pick ProRes or DNx once as the video format, and every file converts right after it downloads, in its own queue. Proxies need a proxy render for each clip inside the editor after import, plus a playback mode to check before export. For files already on disk, editor proxies avoid a second download.
Sources
- Apple: Create optimized and proxy files in Final Cut Pro support.apple.com
- Blackmagic Design: DaVinci Resolve and Fusion support blackmagicdesign.com
- Adobe Help: Premiere Pro supported file formats helpx.adobe.com
