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Convert 264 to MP4

Verified by Adam B.· reviewed by FE Editorial ·updated Aug 21, 2026
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Is it possible to convert 264 to MP4?
Yes - 264 converts to MP4.

Use FFmpeg's -c copy flag to wrap the H.264 stream in an MP4 container instantly with no quality loss. The only caveat is that the output will have no audio, because .264 files carry video only.

6 programs
Also to MP4: AVCHD · USM · MXF

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Tested on macOS, Windows & Linux
Last verified Sep 2026

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Why convert 264 to MP4?

Most media players, editors and video-sharing platforms require a proper container and refuse to open a raw elementary stream. Wrapping the stream in .mp4 adds the timing index players need to seek and show a correct duration, making CCTV footage shareable across any device.

How to convert 264 to MP4

FFmpeg FREE

Run ffmpeg -i in.264 -c copy out.mp4 to remux without re-encoding. If playback speed is wrong, add -framerate 25 (or your camera's actual fps) before -i.

MP4Box (GPAC) FREE

Run MP4Box -add in.264 -fps 25 out.mp4; adjust the -fps value to match your camera's actual frame rate.

Programs that convert 264

Miro Video Converter
Adobe Premiere Pro
Freemake Video Converter
Miro Video Converter for Mac
Adapter
Adobe Premiere Pro for Mac

About these formats

.264 Raw H.264 / AVC Video Elementary Stream (DVR/CCTV export)

A .264 file is a raw H.264 (AVC) video stream, most commonly exported by a CCTV camera, DVR, or NVR. It contains video only - no audio, no container, no timing data - which is why most…

Open .264 details →
.MP4 MPEG-4 Part 14 Video File

An MP4 file is a video container (MPEG-4 Part 14, standardized 2003) that holds video, audio, subtitles, and chapters in one file. It plays on every phone, computer, browser, and smart TV…

Open .MP4 details →

Quality & what to watch

  • No re-encoding occurs - the H.264 bitstream is copied byte-for-byte into the MP4 container, so there is no quality loss.
  • The output has no audio track; a raw .264 stream carries video only.
  • If the output plays at the wrong speed, the stream has no embedded timing - specify the camera's frame rate explicitly with -framerate in FFmpeg or -fps in MP4Box.

Frequently asked questions

Does remuxing to MP4 reduce video quality?
No. The -c copy flag copies the H.264 data unchanged; no re-encoding happens and quality is identical to the source.
Why is there no audio in the output MP4?
A raw .264 elementary stream is video-only by definition; there is no audio data to include.
What if MP4 remuxing fails with a muxing error?
Try MKV instead - run ffmpeg -i in.264 -c copy out.mkv. MKV is more tolerant of streams with unusual headers.
Is `.264` the same as `.h264`?
Yes, both extensions refer to the same raw H.264 elementary stream format.