MediaElement Supported Media Formats - Windows Phone

Windows Phone and MediaElement

Video

• Raw Video

• RGBA format

  • Uncompressed 32 bit Alpha Red, Green, Blue.

  • On Windows Phone 7, the alpha channel is ignored.

• YV12 format- YCrCb(4:2:0)

  • Uncompressed YCrCb(4:2:0).

  • Not supported on Windows Phone 7.

• RGBA - 32 bit Alpha Red, Green, Blue

• Windows Media Video and VC-1 formatsWMV1: Windows Media Video 7

  • Supports Simple, Main, and Advanced Profiles.

  • Supports only progressive (non-interlaced) content.

• WMV2: Windows Media Video 8

• WMV3: Windows Media Video 9

  • Supports Simple and Main Profiles.

  • Supports only progressive (non-interlaced) content.

• WMVA: Windows Media Video Advanced Profile, non-VC-1

• WVC1: Windows Media Video Advanced Profile, VC-1

  • Supports Advanced Profile.

  • Supports only progressive (non-interlaced) content.

• H264 (ITU-T H.264 / ISO MPEG-4 AVC) formats

  • Supports H.264 and MP43 codecs.

  • Supports Base, Main, and High Profiles.

  • Windows Phone 7 supports up to Level 3.0.

    Note that level 3.0 defines the maximum supported resolution for 30fps as 720x480. Other frame rates have different maximum supported resolutions.

  • Supports only progressive (non-interlaced) content.

  • Supports only 4:2:0 chroma subsampling profiles.

  • Desktop Silverlight only supports the Annex B NAL format (i.e. start codes).

    Note, that media libraries, such as the SmoothStreamingMediaElement, support the AVC NAL format by programmatically converting AVC NALs to Annex B NALs. As Silverlight supports partial encryption of H.264 samples, this conversion can occur on encrypted content as well if the NAL headers are not encrypted. The Annex B NAL format is described in MPEG-4 Part 10.

  • Supports PlayReady DRM with Mp4 (H264 and AAC-LC)

• H.263 format

  • Not supported by desktop versions of Silverlight.

  • Not supported by the MediaStreamSource class in Windows Phone 7.

• MPEG-4 Part 2 format

  • Supports Simple and Advanced Profiles.

Audio

• PCM / WAV format"1". This is Linear 8 or 16 bit Pulse Code Modulation. Roughly speaking, this is WAV format.

  • This is Linear 8 or 16 bit Pulse Code Modulation. Roughly speaking, this is WAV format.

• Microsoft Windows Media Audio Standard formats."353" - Microsoft Windows Media Audio v7, v8 and v9.x Standard (WMA Standard)

• Microsoft Windows Media Audio Professional formats."354" - Microsoft Windows Media Audio v9.x and v10 Professional (WMA Professional)

  • Supports full fidelity decoding of WMA 10 Professional Low Bit Rate (LBR) modes in the 32-96 kbps range.

  • Multichannel (5.1 and 7.1 surround) audio content is automatically mixed down to stereo.

  • 24 bit audio will return silence.

  • Sampling Rates beyond 48000 return an invalid format error code in same-domain and a 4001 in cross-domain scenarios.

• MP3 "85" -– (ISO MPEG-1 Layer III) format (MP3).

• AAC"255" - (ISO Advanced Audio Coding) (AAC)format.

  • Supports Low Complexity (AAC-LC) decoding at full fidelity (up to 48 kHz).

  • High Efficiency (HE-AAC) encoded content. will decode only at half fidelity (up to 24 kHz).

    1. HE-AAC v1 (AAC+) and HE-AAC v2 (eAAC+) supported.

    2. Desktop Silverlight will decode only at half fidelity (up to 24 kHz).

  • Multichannel (5.1 surround) audio content is not supported.

• AMR-NB (Adaptive Multi-Rate Narrow Band) format

  1. Not supported by desktop versions of Silverlight.

  2. Not supported by the MediaStreamSource class.

Additional Restrictions

• The following codec formats are not supported on any Silverlight platform:

  • Windows Media Screen

  • Windows Media Audio Professional Lossless

  • Windows Media Voice

• Windows Phone 7 does not support dynamic changes in video frame size