Convert MPEG-2 Transport Stream (.m2ts) to Flash Video (.flv) online for free. Fast, secure video conversion with no watermarks or registration.
Conversion settings — add a file to adjust
Upload your .m2ts file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .flv file when it's ready.
M2TS is the MPEG-2 Transport Stream container used by Blu-ray discs and AVCHD camcorders, carrying H.264/H.265 video with AC3/DTS audio. FLV (Flash Video) was Adobe's streaming video format, widely used for internet video delivery from 2005 to 2015 before HTML5 video took over. Converting M2TS to FLV is a legacy operation for systems still running Flash-based video infrastructure.
FLV conversion from M2TS is needed only for legacy Flash-based video players and streaming servers that specifically require the FLV container. Some older CDN configurations, Flash-based media players embedded in legacy applications, and RTMP streaming workflows still use FLV. While FLV is obsolete for new projects, it remains in use in some legacy enterprise and educational systems.
FFmpeg extracts H.264 video and audio from the M2TS transport stream. If the video is H.264, it can be stream-copied into the FLV container (modern FLV supports H.264). Audio is transcoded from AC3/DTS to AAC or MP3, as FLV supports both. For legacy Flash Player 7/8 compatibility, re-encoding to VP6 video may be needed, though this is extremely rare. The FLV container uses a simple tag-based structure with AMF metadata for duration and dimensions.
Stream copying H.264 from M2TS to FLV is lossless. When re-encoding is needed (downscaling, or VP6 for legacy Flash), quality depends on output settings. VP6 re-encoding from H.264 will show visible quality degradation. Audio transcoding from AC3 to AAC at 128+ kbps is perceptually transparent.
| Device | M2TS | FLV |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No |
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
M2TS to FLV is a legacy conversion for Flash-based infrastructure. For any modern application, convert to MP4 or WebM instead. Use FLV only when your target system has no alternative.
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文件处理后自动删除
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即刻开始转换
随处可用
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| No |
| 特性 | M2TS | FLV |
|---|---|---|
| 全称 | Blu-ray BDAV MPEG-2 Transport Stream | Flash Video |
| 扩展名 | .m2ts | .flv |
| 最适合 | Blu-ray format | Small file size |