This is a non-exhaustive list of files we currently support for conversion. The transcoder actually transcodes more formats than listed, but the most obscure ones have been ommitted.
Image formats
| Common extension(s) | Name |
|---|---|
| bmp | Bitmap |
| eps | Encapsulated PostScript |
| jpg,jpeg | Joint Photographic Experts Group |
| gif | Graphics Interchange Format |
| Portable Document Format | |
| png | Portable Network Graphics |
| psd | Photoshop |
| tiff,tif | Tagged Image File Format |
Video codecs
| Cinepak |
| FLV (H.263/Spark and On2 VP6) |
| H.261 |
| H.263 |
| H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 |
| MJPEG (Motion JPEG) |
| MPEG-1 |
| MPEG-2 |
| MPEG-4 (part 2) |
| On2 VP3 |
| On2 VP5 |
| On2 VP6 |
| RealVideo 1.0 |
| RealVideo 2.0 |
| Snow |
| Theora |
| WMV1 (Windows Media Video 7) |
| WMV2 (Windows Media Video 8) |
| WMV3 (Windows Media Video 9) |
Audio codecs
| AAC |
| ATSC A/52A (AC-3) |
| ALAC (Apple Lossless Audio Codec) |
| AMR (adaptive multi-band rate (narrow and wide-band)) |
| FLAC (Free Lossless Audio Codec) |
| GSM |
| MP2 (MPEG audio layer 2) |
| MP3 (MPEG audio layer 3) |
| Nellymoser (within the FLV format) |
| PCM |
| Vorbis |
| Wavpack |
| Windows Media Audio 1 |
| Windows Media Audio 2 |
Media formats
This list of file formats are common wrappers/containers for video-streams. In some cases a wrapper indicates also which codecs are embedded (mp3 for example), but a file has an .mov wrapper does not necessarily mean we also support its audio or video codecs.
| Common extension(s) | Description |
|---|---|
| 3g2 | 3GP2 Format |
| 3gp | 3GPP Format |
| ac3 | Raw AC3 |
| aac | Advanced Audio Coding |
| aiff | Audio Interchange File Format |
| amr | 3GPP AMR Format |
| asf | ASF Format |
| au | Sun AU format |
| avi | AVI format |
| dirac | Raw Dirac format |
| dv | DV format |
| flav | Raw FLAC |
| flv | Flash Video |
| mkv | Matroska format |
| mov,mp4,m4a,3gp,3g2,mj2 | QuickTime/MPEG-4/Motion JPEG 2000 format |
| mp2 | MPEG audio layer 2 |
| mp3 | MPEG audio layer 3 |
| mpeg, mpg | MPEG format |
| ogg | OGG format |
| wav | WAV format |
Known problems
We don't currently deal well with audio-streams containing more than 2 channels (for example 5.1 sound). These files will end up having no sound in the transcoded file.
If a file contains multiple audio-streams (for example for different languages). The resulting file will also have no audio.