WP8 对音视频格式支持的完整说明

Supported media codecs for Windows Phone

http://msdn.microsoft.com/en-us/library/windowsphone/develop/ff462087(v=vs.105).aspx#BKMK_VideoSupport

 

 

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August 29, 2013

Applies to: Windows Phone 8 | Windows Phone OS 7.1

Windows Phone provides support for various audio and video codecs depending on the processor installed in the device.

Important Note:

Windows Phone Emulator performance may differ from actual hardware codec performance. Always test your app on a physical Windows Phone device to check its performance.

The following sections contain detailed information about the codecs you can use with the various processors used in Windows Phone devices.

This topic contains the following sections.

• Audio Support
• Video Support
• Image Support
• Related Topics

Audio Support

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Audio codecs supported by the Qualcomm 8x27, 8x30, and 8960 processors on Windows Phone

The following table lists the audio codecs that you can use with Windows Phone s that contain these processors.

 

Feature	MP3	WMA Std 9.2	WMA Pro	AMR-NB	AAC-LC	AAC+	eAAC+
Containers	MP3	WMA	WMA	3GP, 3G2, AMR	3GP, 3G2, MP4, M4A, MPR, AAC	3GP, 3G2, MP4, M4A, AAC	3GP, 3G2, MP4, M4A, AAC
Bit depth	16	16	16	16	16	16	16
Max bit rate (per second)	320 kbits	384 kbits	768 kbits	12.2 kbits	320 kbits	64 kbits for stereo 160 kbits for 5.1	32 kbits for stereo
Max sample rate	48 kHz	48 kHz	48 kHz	8kHz	48 kHz	48 kHz	48 kHz
Channels support	1, 2	1, 2	1, 2	1	1, 2	1, 2	1, 2
Streaming support	Yes	Yes	Yes	Yes for 3GP, 3G2	Yes	Yes	Yes
Emulator support	Yes	Yes	Yes	No	Yes	Yes	Yes

Note:

ADPCM is not supported.

Audio codecs supported by the Qualcomm 7x27a, 8x50, and 8x55 processors on Windows Phone

The following table lists the audio codecs that you can use with Windows Phone s that contain these processors.

 

Feature	MP3	WMA Std 9.2	WMA Pro	AMR-NB	AAC-LC	AAC+	eAAC+
Containers	MP3	WMA	WMA	3GP, 3G2, AMR	3GP, 3G2, MP4, M4A, AAC	3GP, 3G2, MP4, M4A, AAC	3GP, 3G2, MP4, M4A, AAC
Bit depth	16	16	16	16	16	16	16
Max bit rate (per second)	320 kbits	256 kbits	256 kbits	12.2 kbits	576 kbits	320 kbits	320 kbits
Max sample rate	48 kHz	48 kHz	48 kHz	48 kHz	48 kHz	48 kHz	48 kHz
Channels support	1, 2	1, 2	1, 2	1	1, 2	1, 2	1, 2
Streaming support	Yes	Yes	Yes	Yes for 3GP, 3G2	Yes	Yes	Yes
Emulator support	Yes	Yes	Yes	No	Yes	No	No

Important Note:

 The 7x27a processor allows audio input on only one stereo bus at a time. This means that applications cannot concurrently capture more than one audio source on 7x27a devices. If your application uses the AudioSink class with the FileSink class on a 7x27a device, the AudioSink class will not get audio samples, and the AudioCaptureDevice object will be set to null. The FileSink class works fine on the 7x27a processor. The FileSink class and the AudioSink class work correctly if used independent of one another.

Note:

 The 7x27a processor does not allow accessing the FM radio and microphone simultaneously.

Video Support

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If you want to use a video codec that works on all Windows Phone devices, use H.264-encoded video in MP4 files. Because the 7x27a processor defines the baseline, make sure your files do not exceed the parameters listed in the table for H.264 video on a 7x27a processor.

In addition, the IsMultiResolutionVideoSupported property indicates whether the processor supports HD video. Check this property at runtime if you want to scale the video based on the processor in the Windows Phone.

Video codecs supported by the Qualcomm 8x30 and 8960 processors on Windows Phone

The following table lists the video codecs that you can use with Windows Phone s that contain these processors.

 

Feature	H.263	VC1	VC1	VC1	MPEG-4 Pt 2	MPEG-4 Pt 2	H.264	H.264	H.264
Containers	3GP, 3G2	WMV	WMV	WMV	3GP, 3G2, MP4, M4V	MP4, M4V, AVI	3GP, 3G2, MP4, M4V, MOV	3GP, 3G2, MP4, M4V, MOV	3GP, 3G2, MP4, M4V, MOV
Profile	0	Simple	Main	Advanced	Simple	Advanced Simple	Baseline	Main	High
Level	70	Medium	High	L3	L5	L5	4	4	4
Max average video bit Rate	8 Mbps	20 Mbps	20 Mbps	20 Mbps	20 Mbps	20 Mbps	20 Mbps	20 Mbps	20 Mbps
Max peak video bit rate	16 Mbps	40 Mbps	40 Mbps	40 Mbps	40 Mbps	40 Mbps	40 Mbps	40 Mbps	40 Mbps
Max resolution and frame rate	720 x 480 @ 30 fps	352 × 288 @ 15fps	1920x1080 @ 30 fps	1920x1080 @ 30 fps	1920x1080 @ 30 fps	1920x1080 @ 30 fps	1920x1080 @ 30 fps	1920x1080 @ 30 fps	1920x1080 @ 30 fps
Smooth streaming support	No	No	No	Yes	No	No	Yes	Yes	Yes
Emulator support	No	Yes	Yes	Yes	No	No	Yes	Yes	Yes

Video codecs supported by the Qualcomm 8x27 processor on Windows Phone

The following table lists the video codecs that you can use with Windows Phone s that contain this processor.

 

Feature	H.263	VC1	VC1	VC1	MPEG-4 Pt 2	MPEG-4 Pt 2	H.264	H.264	H.264
Profile	0	Simple	Main	Advanced	Simple	Advanced Simple	Baseline	Main	High
Level	70	Medium	High	L3	L5	L5	4	4	4
Max average video bit Rate	8 Mbps	14 Mbps	14 Mbps	14 Mbps	14 Mbps	14 Mbps	14 Mbps	14 Mbps	14 Mbps
Max peak video bit rate	16 Mbps	28 Mbps	28 Mbps	28 Mbps	28 Mbps	28 Mbps	28 Mbps	28 Mbps	28 Mbps
Max resolution and frame rate	720 x 480 @ 30 fps	1280x720 @ 30 fps	1280x720 @ 30 fps	1280x720 @ 30 fps	1280x720 @ 30 fps	1280x720 @ 30 fps	1280x720 @ 30 fps	1280x720 @ 30 fps	1280x720 @ 30 fps

Video codecs supported by the Qualcomm 8x50 and 8x55 processors on Windows Phone

The following table lists the video codecs that you can use with Windows Phone s that contain these processors.

 

Feature	H.263	VC1	VC1	VC1	MPEG-4 Pt 2	MPEG-4 Pt 2	MPEG-4 Pt 2 (for 512-MB devices)	H.264	H.264	H.264
Containers	3GP, 3G2	WMV	WMV	WMV	3GP, 3G2, MP4, M4V	3GP, 3G2, MP4, M4V	3GP, 3G2, MP4, M4V	3GP, 3G2, MP4, M4V, MOV	3GP, 3G2, MP4, M4V, MOV	3GP, 3G2, MP4, M4V, MOV
Profile	0	Simple	Main	Advanced	Simple	Advanced Simple	Simple	Baseline	Main	High
Level	40	Medium	Medium	L1	3b	3b	5	3.1	3.1	3.1
Max average video bit Rate	2 Mbps	2 Mbps	2 Mbps	2 Mbps	2 Mbps	2 Mbps	10 Mbps	10 Mbps	10 Mbps	10 Mbps
Max peak video bit rate	20 Mbps	20 Mbps	20 Mbps	20 Mbps	27 Mbps	27 Mbps	27 Mbps	27 Mbps	27 Mbps	27 Mbps
Max resolution and frame rate	800x600 @ 30 fps	800x600 @ 30 fps	800x600 @ 30 fps	800x600 @ 30 fps	800x600 @ 30 fps	800x600 @ 30 fps	1280x720 @ 30 fps	1280x720 @ 30 fps	1280x720 @ 30 fps	1280x720 @ 30 fps
Smooth streaming support	No	No	No	Yes	No	No	No	Yes	Yes	Yes
Emulator support	No	Yes	Yes	Yes	No	No	No	Yes	Yes	Yes

Note:

8x50 devices support up to Level 3.0 at 720x480 @ 30 fps or 720x576 @ 25 fps.

Important Note:

Smooth Streaming Media Element (SSME) allows for dynamic resolution changes. This option is only supported on 8x55 based devices. The 8x50 and 7x27a processors do not support this feature. Only a single bit rate and resolution can be used for playing back video content on those devices by using smooth streaming.

Video codecs supported by the Qualcomm 7x27a processor on Windows Phone

The following table lists the video codecs that you can use with Windows Phone s that contain these processors.

 

Feature	H.263	VC1	VC1	MPEG-4 Pt 2	H.264	H.264	H.264
Containers	3GP, 3G2	WMV	WMV	3GP, 3G2, MP4, M4V	3GP, 3G2, MP4, M4V, MOV	3GP, 3G2, MP4, M4V, MOV	3GP, 3G2, MP4, M4V, MOV
Profile	0	Simple	Main	Simple	Baseline	Main	High
Level	30	Main	Low	3	2.0	1.3 - CABAC, 2.0 - CAVLC	1.3 - CABAC, 2.0 - CAVLC
Max average video bit rate	2 Mbps	2 Mbps	1 Mbps	2 Mbps	2 Mbps	CABAC: 2 Mbps, CAVLC: 768 Kbps	CABAC: 2 Mbps, CAVLC: 768 Kbps
Max peak video bit rate	4 Mbps	Not Available	Not Available	4 Mbps	4 Mbps	4 Mbps	4 Mbps
Max resolution and frame rate	800×480 @ 30 fps	800×480 @ 30 fps	400×240 @ 30 fps	800×480 @ 30 fps	800×480 @ 30 fps	800×480 @ 30 fps	800×480 @ 30 fps
Smooth streaming support	No	No	No	No	Yes	Yes	Yes
Emulator support	No	Yes	Yes	No	Yes	Yes	Yes

Note:

The 7x27a processor does not support the VC1 Advanced profile.

Image Support

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Image codecs supported on Windows Phone

The following table lists the image codecs that you can use on all Windows Phone devices.

 

Feature	Bitmap	Joint Photographic Experts Group (JPEG)	Portable Network Graphics	Graphics Interchange Format (both GIF87a and GIF89a)
Container	BMP	JPG	PNG	GIF
Emulator support	Yes	Yes	Yes	Yes

See Also

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Other Resources

Media for Windows Phone