The New Spark Platform transcoder accepts just about anything you can throw at it. We strive to support all consumer devices and myriad configurations, and our file conversion success rate is over 99%.
Below is a list of media types supported by the platform.
| Supported extension(s) | Name |
|---|---|
| bmp | Bitmap |
| eps | Encapsulated PostScript |
| jpg,jpeg | Joint Photographic Experts Group |
| gif | Graphics Interchange Format |
| pdf * | Portable Document Format |
| png | Portable Network Graphics |
| psd | Photoshop |
| tiff,tif | Tagged Image File Format |
| Raw Formats( Supported as Of September 15, 2014) | |
| crw,cr2,dng | Canon Raw |
| nef,nrw | Nikon Raw |
| mrw | Minolta Raw |
| raf | Fuji Raw |
| arw | Sony Raw |
| pef,dng | Pentax Raw |
| orf | Olympus Raw |
| kdc | Kodak Raw |
| orf | Olympus Raw |
| 3fr | Hasselblad Raw |
* Note: Only PDFs encoded with supported compression formats (ie. jpeg) are supported. Only the first page of a PDF document is transcoded.
This list of file formats are common wrappers/containers for video and audio 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 |
| mts | AVCHD multiplexed video/audio stream |
| Compression type |
|---|
| 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) |
| Compression type |
|---|
| 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 |
We currently have the best support for MPEG-4 H.264/AVC format. We recommend using this format to upload video files. Often these files have .mov or .mp4 extensions. If you intend to use passthrough, make sure the file has .mp4 extension by following the Video Encoding Guidelines.
We re-encode every uploaded audio file to MP3. If you'd like to keep the highest possible quality we recommend uploading in MP3, as these files just pass-through (meaning, we won't reconvert them.)
Some transcoder components, such as the video mixer will resample every incoming audio track (and audio file or an audio stream in a video) to 44100Hz. We recommend using this sampling rate as resampling audiotracks could result in quality degradation.
Files with a mono audio stream will be converted to joint-stereo for most output formats. Multi-channel audio (5.1, DTS, etc...) will be down-mixed to stereo.
