General

File Formats for Video Editors: Ingest to Export

Published Mar 19, 2026 8 min read By ChangeThisFile Team

Quick Answer

Video editing involves three distinct format stages: ingest (camera-native MP4/MOV with H.264/H.265 codecs), editing (ProRes 422 or DNxHR intermediate codecs for smooth timeline performance), and export (H.264 MP4 for web, ProRes for handoff, H.265 for archival). Understanding the container-vs-codec distinction eliminates 90% of video format confusion.

Video formats are confusing because people use the terms wrong. MP4 is not a codec. H.264 is not a container. ProRes is not a file extension. This conflation causes real problems: editors choose the wrong export settings, clients can't open deliverables, and timelines stutter because the editing codec demands too much from the CPU.

This guide separates the container from the codec, maps each combination to its purpose in the editing pipeline, and gives you the actual export settings for every common delivery scenario. No ambiguity, no "it depends" without saying what it depends on.

Containers vs Codecs: The Critical Distinction

A container (MP4, MOV, MKV, AVI) is the packaging. It holds video, audio, subtitles, and metadata in a structured file. Think of it as a ZIP file for media streams.

A codec (H.264, H.265, ProRes, DNxHR, VP9, AV1) is the compression algorithm that encodes/decodes the actual video data inside the container.

The same codec can live in different containers. H.264 video can be in an MP4, MOV, or MKV container. The visual quality is identical — the container affects metadata support, subtitle handling, and player compatibility, not the image itself.

Common Containers

Container	Extension	Common Codecs Inside	Primary Use
MPEG-4 Part 14	.mp4	H.264, H.265, AAC	Web delivery, universal playback
QuickTime	.mov	ProRes, H.264, H.265, PCM	Apple ecosystem, professional editing
Matroska	.mkv	H.264, H.265, VP9, AV1, FLAC	Archival, multi-track (multiple audio/subtitle tracks)
AVI	.avi	Various (legacy)	Legacy Windows, avoid for new work
WebM	.webm	VP8, VP9, AV1, Opus	Web video (open/royalty-free)
Flash Video	.flv	H.264, VP6	Dead format, conversion only

Common Codecs

Codec	Type	Bitrate (1080p)	CPU Decode	Best For
H.264 (AVC)	Lossy, interframe	5–50 Mbps	Low (HW accel everywhere)	Web delivery, general use
H.265 (HEVC)	Lossy, interframe	3–30 Mbps	Medium	4K delivery, archival
ProRes 422	Lossy, intraframe	~150 Mbps	Medium	Editing, Apple handoff
ProRes 4444	Lossy, intraframe	~330 Mbps	Medium-High	VFX, alpha channels
DNxHR HQ	Lossy, intraframe	~150 Mbps	Medium	Editing, Avid workflows
VP9	Lossy, interframe	3–30 Mbps	Medium	YouTube (re-encoded server-side)
AV1	Lossy, interframe	2–20 Mbps	High (improving)	Next-gen web, streaming

Intraframe vs Interframe: Intraframe codecs (ProRes, DNxHR) compress each frame independently. Scrubbing the timeline is instant because any frame can be decoded alone. Interframe codecs (H.264, H.265) compress across frames — a given frame might depend on 15 others. Scrubbing requires decoding entire frame groups, which is why H.264 timelines stutter on slower hardware.

Ingest: Camera to Timeline

What your camera records determines your ingest workflow.

Camera Recording Formats

Consumer cameras / phones: H.264 or H.265 in MP4 container. 8-bit 4:2:0 color. Highly compressed (20–50Mbps at 4K). Editable directly but may stutter on complex timelines.

Mirrorless / cinema cameras: H.264/H.265 internally, ProRes or RAW externally (via HDMI to recorder). Sony records XAVC (H.264/H.265 variant in MP4), Canon records H.265 in MOV, Blackmagic records BRAW (Blackmagic RAW, proprietary). RED cameras record REDCODE RAW (.R3D).

ProRes from camera: Some cameras record ProRes internally (Blackmagic Pocket, Nikon Z8/Z9, Canon R5 C). These files are huge (ProRes 422 HQ at 4K = ~110GB/hour) but edit beautifully with zero transcoding.

Proxy Workflows

Why proxies: H.264/H.265 4K footage from consumer cameras is CPU-intensive to decode during editing. If your timeline stutters, the solution isn't a faster computer — it's proxies.

How it works: Transcode camera files to a lower-resolution editing codec (ProRes Proxy at 1080p, or DNxHR LB). Edit with proxies, then relink to originals for final export. DaVinci Resolve, Premiere Pro, and Final Cut Pro all have built-in proxy workflows.

Proxy specs: ProRes Proxy at 1080p = ~5GB/hour (vs ~40GB/hour for 4K H.264 source). DNxHR LB at 1080p is comparable. The quality looks rough at full screen but is perfectly fine for editing decisions. You only see the proxies during editing — the final export uses original quality.

Convert MP4 to MOV | Convert MKV to MP4 | Convert AVI to MP4

Timeline: Project File Formats

Each NLE (Non-Linear Editor) stores its project state in a proprietary format. These files don't contain video data — they reference source files and store edit decisions.

NLE Project Files

DaVinci Resolve (.drp / .drb): Binary project database. Stored locally or on a PostgreSQL server for multi-user collaboration. Not portable as a single file — use "Export Project" to create a shareable .drp.

Premiere Pro (.prproj): Gzipped XML. Can be unzipped and text-edited in emergencies (fixing broken media links, for instance). Media Cache (.mcdb, .ims) files are separate and regenerated automatically.

Final Cut Pro (.fcpbundle): macOS bundle (folder disguised as a file) containing XML project data, render files, and optionally the source media itself ("Managed" media). Self-contained projects are portable; event-referenced projects break when media moves.

Cross-NLE exchange: AAF (Advanced Authoring Format) and XML (FCPXML, Premiere XML) carry edit decisions between tools. They preserve cuts, basic transitions, and timing but lose effects, grades, and complex composites. Use these for handoff between editors on different NLEs, not for final delivery.

Intermediate Codecs: ProRes and DNxHR

Intermediate codecs are designed for editing and post-production handoff, not delivery. They prioritize decode speed and quality preservation over file size.

ProRes Variants

Variant	Bitrate (1080p)	Bitrate (4K)	Use Case
ProRes Proxy	~45 Mbps	~180 Mbps	Offline editing proxies
ProRes LT	~100 Mbps	~400 Mbps	Budget-conscious editing
ProRes 422	~150 Mbps	~600 Mbps	Standard editing, handoff
ProRes 422 HQ	~220 Mbps	~880 Mbps	High-quality editing, grading
ProRes 4444	~330 Mbps	~1.3 Gbps	VFX, compositing, alpha
ProRes 4444 XQ	~500 Mbps	~2 Gbps	HDR, extreme grading

ProRes 422 is the standard for professional handoff. If someone says "send me ProRes," they mean ProRes 422 in a .mov container. ProRes 4444 adds an alpha channel and 4:4:4 color subsampling — use for compositing deliveries (VFX plates, motion graphics overlays).

DNxHR Variants

Avid's answer to ProRes. Functionally equivalent quality and performance. DNxHR is cross-platform (ProRes encoding was historically macOS-only, though FFmpeg now encodes ProRes on any OS).

DNxHR LB (Low Bandwidth) = ProRes Proxy equivalent. DNxHR SQ (Standard Quality) = ProRes 422 equivalent. DNxHR HQ (High Quality) = ProRes 422 HQ equivalent. DNxHR HQX = ProRes 4444 equivalent (12-bit, 4:2:2). DNxHR 444 = ProRes 4444 equivalent (4:4:4 + alpha).

Export: Delivery Specs

Export settings depend entirely on where the video goes next.

Web Delivery (YouTube, Vimeo, Social)

YouTube upload: H.264 in MP4 at the highest quality you can manage. YouTube re-encodes everything to VP9 (or AV1 for popular videos) regardless of what you upload. Uploading ProRes or high-bitrate H.264 gives YouTube's encoder the best source material. Minimum: 1080p H.264 at 10Mbps. Recommended: 4K H.264 at 40–50Mbps (YouTube allocates more bitrate to 4K uploads even for 1080p viewers).

Vimeo: Same as YouTube. H.264 MP4, highest quality you can upload within their file size limits.

General web (self-hosted): H.264 MP4, CRF 18–23 (lower = better quality, larger file). Two-pass encoding for fixed bitrate control. Audio: AAC 192–256kbps stereo. Add -movflags +faststart in FFmpeg to move the moov atom to the beginning (enables progressive playback before full download).

Convert MOV to MP4 | Convert MKV to MP4 | Convert WebM to MP4

Professional Handoff

Post house / colorist: ProRes 422 HQ or ProRes 4444 in MOV. Full resolution, no scaling. Include handles (extra frames before first cut and after last cut, typically 24–48 frames). Separate audio tracks, not mixed down.

Sound designer: Video: ProRes Proxy or H.264 (reference only). Audio: WAV 48kHz 24-bit stems. Separate dialogue, music, and SFX tracks. Include a 2-pop (1kHz tone at exactly -2 seconds) for sync reference.

Broadcaster: Varies by network. Common: ProRes 422 HQ in MOV, 1080i or 1080p, 48kHz audio. Some require specific loudness (ATSC A/85: -24 LKFS in US, EBU R128: -23 LUFS in Europe). Always ask for the delivery spec document — every broadcaster has one.

Archival

Master archive: ProRes 422 HQ in MOV for the finished program. H.265 CRF 16–18 in MKV for space-efficient archival (50–70% smaller than ProRes with imperceptible quality loss). Keep separate audio stems as WAV files alongside the video master.

Storage math: A 10-minute 4K ProRes 422 HQ master: ~33GB. Same content as H.265 CRF 18: ~8GB. H.264 CRF 18: ~12GB. For long-term archival, H.265 offers the best space efficiency while maintaining quality sufficient for future re-editing or re-delivery.

Convert MP4 to MKV | Convert MOV to MKV

Audio Formats in Video Production

Audio in video production follows its own format rules, often overlooked until something goes wrong in the mix.

Audio Specs for Video

Production audio: WAV 48kHz 24-bit (film/video standard). Not 44.1kHz (that's CD/music). 48kHz aligns with video frame rates. 24-bit gives 144dB dynamic range, which matters for location recording where levels can't be perfectly controlled.

In the timeline: Most NLEs use WAV or AIFF internally. AAC and MP3 are decoded to PCM on import. If you import compressed audio, it's already losslessly expanded in the timeline — no quality difference during editing.

Delivery audio: AAC 192–256kbps for web delivery (inside the MP4). WAV 48kHz 24-bit stems for professional handoff. Dolby Digital (AC3) or DTS for broadcast/disc. Separate music, dialogue, effects, and mix stems.

Extract MP3 from MP4 | Extract WAV from MP4 | Extract MP3 from MOV

Video format mastery comes down to understanding one concept: the right format changes at each pipeline stage. Camera-native codecs are designed for recording efficiency, not editing performance. Intermediate codecs are designed for editing performance, not delivery file size. Delivery codecs are designed for playback compatibility and file size, not editing.

Use each format where it belongs, and the technical headaches disappear. When you need to move between stages, ChangeThisFile converts between video containers and codecs using FFmpeg on the server side.

Key Takeaways

Container (MP4, MOV, MKV) is packaging; codec (H.264, ProRes, H.265) is compression — don't confuse them
Edit with intraframe codecs (ProRes, DNxHR) for smooth scrubbing; deliver with interframe codecs (H.264, H.265) for small files
H.264 MP4 is the universal web delivery format; YouTube/Vimeo re-encode everything anyway so upload the highest quality source you can
ProRes 422 in MOV is the standard professional handoff format
Use proxy workflows for H.264/H.265 footage that stutters on the timeline
Audio: WAV 48kHz 24-bit for production, AAC 192-256kbps for delivery

Frequently Asked Questions

Why does my H.264 footage stutter in the timeline but play fine in VLC?

VLC plays video sequentially, decoding one frame after the next, which is what H.264's interframe compression is optimized for. Editing involves scrubbing, jumping to random positions, and playing in reverse. Each random seek may require decoding 15+ frames in the GOP (Group of Pictures) before the target frame can be displayed. Your CPU can't do this in real time at 4K. Solution: create proxy files in ProRes or DNxHR.

Is MKV or MP4 better for archival?

MKV is technically superior for archival: it supports more codecs, more audio tracks, more subtitle formats, chapter markers, and attachments (fonts, cover art). MP4 is more universally playable. For archival where you control the playback environment, use MKV. For archival where the files might be played on random devices in the future, use MP4. The video quality inside is identical if the codec and settings are the same.

Should I export H.264 or H.265 for YouTube?

H.264 unless your upload speed is very slow. YouTube re-encodes to VP9 or AV1 regardless. H.265 files are smaller (faster upload) but provide no quality advantage after YouTube's re-encoding. H.264 encoding is also faster, so your export completes sooner. The only case for H.265: extremely long videos where the smaller file size meaningfully reduces upload time.

What's the difference between CRF and CBR encoding?

CRF (Constant Rate Factor) varies the bitrate to maintain consistent quality. Simple scenes get low bitrate, complex scenes get high bitrate. The file size is unpredictable but quality is consistent. CBR (Constant Bit Rate) uses the same bitrate throughout, so complex scenes may show artifacts while simple scenes waste bits. Use CRF for quality-priority deliverables and CBR for streaming where consistent bandwidth is required.

Can I edit directly with H.265 footage without proxies?

Yes, if your hardware supports it. Apple Silicon Macs (M1+) have hardware H.265 decoding that makes native editing feasible in Final Cut Pro and DaVinci Resolve. NVIDIA GPUs with NVDEC also help. But even with hardware acceleration, intraframe codecs (ProRes, DNxHR) provide smoother scrubbing and faster rendering. If your timeline is simple (few cuts, minimal effects), native H.265 editing works. Complex multi-layer timelines still benefit from proxies.

Why is my MOV file 10x larger than the MP4 even though both are H.264?

Check the codec, not just the container. MOV files from professional cameras often contain ProRes (150+ Mbps) while MP4 files contain H.264 (20-50 Mbps). The container name tells you nothing about the compression level inside. Use MediaInfo or FFprobe to check the actual codec and bitrate: ffprobe -hide_banner -show_streams filename.mov.

What export settings should I use for a client who 'just wants to watch it'?

H.264 in MP4 container, 1080p, CRF 18-20 (or bitrate 15-20 Mbps), AAC audio 256kbps stereo. This plays on every computer, phone, tablet, smart TV, and game console made in the last 15 years. Don't send ProRes (1GB+ for a 5-minute video, won't play on Windows without installing codecs). Don't send MKV (some devices can't play it). MP4 with H.264 is the universal answer.

How do I extract just the audio from a video file?

You can <a href='/mp4-to-mp3'>convert MP4 to MP3</a> or <a href='/mp4-to-wav'>MP4 to WAV</a> directly. For lossless extraction (no re-encoding), use FFmpeg: ffmpeg -i input.mp4 -vn -acodec copy output.aac. The -vn flag drops the video stream, -acodec copy copies the audio stream without re-encoding. The output format depends on what codec the audio is in (usually AAC for MP4 files). If you need WAV for editing, re-encoding from AAC to WAV is fine since WAV is uncompressed.

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