Android 支援的媒體格式

http://blog.csdn.net/ddna/article/details/5173481

Android支援的媒體格式

       Android平台支援的基本媒體格式清單如下表：

Type	Format	Encoder	Decoder	Details	File Type(s) Supported
Audio	AAC LC/LTP	X	Mono/Stereo content in any combination of standard bit rates up to 160 kbps and sampling rates from 8 to 48kHz	3GPP (.3gp) and MPEG-4 (.mp4, .m4a). No support for raw AAC (.aac)
HE-AACv1 (AAC+)	X
HE-AACv2 (enhanced AAC+)	X
AMR-NB	X	X	4.75 to 12.2 kbps sampled @ 8kHz	3GPP (.3gp)
AMR-WB	X	9 rates from 6.60 kbit/s to 23.85 kbit/s sampled @ 16kHz	3GPP (.3gp)
MP3	X	Mono/Stereo 8-320Kbps constant (CBR) or variable bit-rate (VBR)	MP3 (.mp3)
MIDI	X	MIDI Type 0 and 1. DLS Version 1 and 2. XMF and Mobile XMF. Support for ringtone formats RTTTL/RTX, OTA, and iMelody	Type 0 and 1 (.mid, .xmf, .mxmf). Also RTTTL/RTX (.rtttl, .rtx), OTA (.ota), and iMelody (.imy)
Ogg Vorbis	X	Ogg (.ogg)
PCM/WAVE	X	8- and 16-bit linear PCM (rates up to limit of hardware)	WAVE (.wav)
Image	JPEG	X	X	Base+progressive	JPEG (.jpg)
GIF	X	GIF (.gif)
PNG	X	PNG (.png)
BMP	X	BMP (.bmp)
Video	H.263	X	X	3GPP (.3gp) and MPEG-4 (.mp4)
H.264 AVC	X	3GPP (.3gp) and MPEG-4 (.mp4)
MPEG-4 SP	X	3GPP (.3gp)

除了上面列出的基本的媒體格式外，不同硬體的手機還可能具有自己特有的一些媒體格式的編解碼能力，這一點需要開發者留意。

       T-Mobile G1 額外支援的媒體格式：

Type	Format	Encoder	Decoder	Comment	File Type(s) Supported
Audio	WMA	X	Supports WMA standard L1-L3: ·                                 L1: 64 kbps - 161 kbps @ 44.1kHz ·                                 L2: <=161 kbps <=48 kHz ·                                 L3: <385 kbps <=48 kHz Mono and stereo profiles with 16-bits per sample. Decoder does not support WMA Pro, Lossless, or Speech codecs.	Windows Media Audio (.wma)
Video	WMV	X	Versions 7, 8 and 9. Simple profile only	Windows Media Video (.wmv)
H.264 AVC	X	On the G1, this decoder is limited to baseline profile up to 480x320, and 600 kbps average bitrate for the video stream.	3GPP (.3gp) and MPEG-4 (.mp4)

參考資料：

Android1.5SDK官方文檔：android-sdk-windows-1.5_r3/docs/guide/appendix/media-formats.html