M2TS containers hold high-definition video from Blu-ray discs (H.264/H.265 at 20-50 Mbps) and AVCHD camcorders (H.264 at 17-28 Mbps) with AC3/DTS surround audio. The iPhone Video preset creates H.264 1080p MP4 files optimized for iPhone's hardware decoder and 6.1-6.7 inch display, with bitrate and profile settings tailored for efficient battery consumption during playback.

iPhones cannot play M2TS files — iOS has no MPEG-2 Transport Stream demuxer and lacks AC3/DTS decoders. The iPhone Video preset ensures your Blu-ray or camcorder content plays smoothly using iPhone's VideoToolbox hardware decoder. The 1080p output at 4-6 Mbps is optimized for iPhone's Super Retina XDR display — enough bitrate for sharp playback without wasting storage on quality the screen cannot resolve.

FFmpeg extracts video and audio from the M2TS, then encodes H.264 High Profile Level 4.1 at 1920x1080, targeting 4-6 Mbps. Audio is transcoded from multi-channel AC3/DTS to AAC-LC stereo at 128 kbps / 44.1 kHz. The moov atom is placed at file start for instant playback. Color metadata is set to BT.709 for correct rendering on iPhone's P3 wide color displays. Frame rate is matched to source content (typically 24 fps for film, 30/60 fps for camcorder).

Resolution: 1920x1080

Bitrate: 8-12 Mbps

H.264 recommended for fast processing

Resolution: 1080x1080

Bitrate: 3.5 Mbps

Square or 9:16 for Reels

Resolution: 1080x1920

Bitrate: 4 Mbps

9:16 vertical, under 60s ideal

Resolution: 1280x720

Bitrate: 5 Mbps

Under 140s, 512MB max

Resolution: 960x540

Bitrate: 2 Mbps

16MB limit for standard, 64MB for document

Resolution: 1280x720

Bitrate: 4 Mbps

8MB free, 50MB Nitro

At 4-6 Mbps, a 2-hour movie is approximately 3.6-5.4 GB. A 256 GB iPhone can hold 40-60+ full-length movies at this quality.

Yes. H.264 MP4 AirPlays perfectly to Apple TV and AirPlay-compatible smart TVs. On a larger screen, consider the iPad preset's higher bitrate for better quality.

Yes. H.264 MP4 imports natively into iMovie on iOS. The converted file is much easier for iMovie to handle than the original M2TS.

DTS is downmixed to stereo AAC. The downmix algorithm preserves center channel (dialogue) prominence. For surround sound playback, you would need to use an HDMI connection from the iPhone.

iPhone 15 Pro and later record 4K but 1080p provides the best bitrate-to-quality ratio for viewing on the phone's screen. 4K at the same bitrate looks worse than 1080p due to insufficient bits per pixel.

Device	M2TS	iPhone Video
Windows PC	Partial	Partial
macOS	Partial	Partial
iPhone/iPad	Partial	Partial
Android	Partial	Partial
Linux	Partial	Partial
Web Browser	No	No

Egenskap	M2TS	iPhone Video
Fullt navn	Blu-ray BDAV MPEG-2 Transport Stream	iPhone Compatible Video
Filendelse	.m2ts	.mp4
Best egnet for	Blu-ray format	iPhone optimized

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