raw G3 data是什么意思

二师兄89 2012-05-16 01:42:11

从视频服务器上获取了一段原始码流，是G711标准，结果存储下来的文件，linux显示是raw G3 data，byte-padded。请问，这是什么意思？如果想要播放这段音频，是要给其编码成MP3或者其他的格式的吗？

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Unity Pro的IO管理块库-2006-CN.pdf.pdf

---------------------------------------------------------------- Canon Digital Camera SDK README file Version 7.3.0 July 2005 Windows edition ---------------------------------------------------------------- Copyright (c)1997-2005 Canon Inc. ________________________________________________________________ Thank you for developing software for Canon digital cameras. This README file contains some information which may be helpful in diagnosing problems with the Canon Digital Camera SDK or Canon digital cameras. ________________________________________________________________ -------- CONTENTS -------- 1. Supported Cameras 2. Windows 2000/XP Specific Notes 3. Windows 98SE/Me/2000/XP Specific Notes 4. Installing the Canon Digital Camera SDK 5. Un-Installing the Canon Digital Camera SDK 6. Caution relating to Remote Release Control Function 7. RAW Developmet Function 1. Supported Cameras ================================================================ This version of the Canon Digital Camera SDK supports the cameras shown below. PowerShot A10, PowerShot A20, PowerShot A30, PowerShot A40, PowerShot A60, PowerShot A70, PowerShot A75, PowerShot A80, PowerShot A85, PowerShot A95 PowerShot A100, PowerShot A200, PowerShot A300, PowerShot A310, PowerShot A400, PowerShot A510, PowerShot A520 PowerShot S10, PowerShot S20, PowerShot S30, PowerShot S40, PowerShot S45, PowerShot S50, PowerShot S60, PowerShot S70 PowerShot S100, IXY DIGITAL, DIGITAL IXUS, PowerShot S110, IXY DIGITAL 200, DIGITAL IXUS v, PowerShot S200, IXY DIGITAL 200a, DIGITAL IXUS v2, PowerShot S230, IXY DIGITAL 320, DIGITAL IXUS v3, PowerShot S300, IXY DIGITAL 300, DIGITAL IXUS 300, PowerShot S330, IXY DIGITAL 300a, DIGITAL IXUS 330, PowerShot S400, IXY DIGITAL 400, DIGITAL IXUS 400, PowerShot SD100, IXY DIGITAL 30, DIGITAL IXUS II, PowerShot SD10, IXY DIGITAL L, DIGITAL IXUS i, PowerShot SD110, IXY DIGITAL 30a, DIGITAL IXUS IIs, PowerShot S410, IXY DIGITAL 450, DIGITAL IXUS 430, PowerShot S500, IXY DIGITAL 500, DIGITAL IXUS 500, PowerShot SD20, IXY DIGITAL L2, DIGITAL IXUS I5, PowerShot SD200, IXY DIGITAL 40, DIGITAL IXUS 30, PowerShot SD300, IXY DIGITAL 50, DIGITAL IXUS 40, PowerShot SD400, IXY DIGITAL 55, DIGITAL IXUS 50, PowerShot SD500, IXY DIGITAL 600, DIGITAL IXUS 700 PowerShot G1, PowerShot G2, PowerShot G3, PowerShot G5, PowerShot G6, PowerShot Pro90 IS, PowerShot S1 IS, PowerShot Pro1 The EOS class of digital cameras are not supported. 2. Windows 2000/XP Specific Notes ================================================================ (1) NTFS (NT File System) not supported on memory card installed in camera. Memory card must be formatted with the FAT File System before camera will recognize it. (2) Removing a memory card from the card reader when system is running results in system lockup. Be sure that Windows is completely shut down before removing or inserting a memory card. (3) Not all Memory Card Readers have Windows 2000/XP support. Check with your PC Card vendor for details. 3. Windows 98SE/Me/2000/XP Specific Notes ================================================================ (1) Cautions relating to USB connection Please do not place your computer into standby mode while the Canon digital camera is connected to its USB port. If the computer is placed into standby mode while the camera is connected to the USB port, do NOT disconnect the USB cable from the camera or computer. Try to revive the computer. Instead, restore the computer to normal operation mode with the cable still connected. Unplugging the cable with the computer in standby mode may cause some computers to not recover correctly from standby mode. For details on standby mode, refer to your computer's manual. (2) Cautions relating to communication between the SDK and a Canon digital camera When the SDK is running and is connected to a camera, the driver makes communications with the camera periodically. Do not operate the camera controls, remove the memory card or battery, disconnect the communication cable, or otherwise interfere with the communications. Such actions may cause misoperation on some PCs. Wait until the driver has shut down before doing such actions. 4. Installing the Canon Digital Camera SDK ================================================================ To start the installation program, double-click on the SETUP.EXE program on the first installation disk. The program will prompt you for further actions. Once you have started the Installation program, remove an installation diskette from your diskette drive only under the following circumstances: (1) The Canon Digital Camera SDK installation program prompts you to do so. (2) You have completed the installation successfully. (3) You have Canceled out of the Installation program (pressed "Cancel" button) before successful completion. 5. Un-Installing the Canon Digital Camera SDK ================================================================ To uninstall Canon Digital Camera SDK, please carry out the following procedure: (1) Click the Start button, point to Settings, and then click Control Panel. (2) Double-click the "Add/Remove Programs" icon. (3) On the Install/Uninstall tab, click "Canon Digital Camera SDK 7.1", and then click the "Add/Remove..." button. (4) The uninstaller may ask you about removing shared files. Click on "Yes" to remove the specified file, or click on "Yes To All" to simply remove all of these files. 6. Caution relating to Remote Release Control Function ================================================================ The processing of CDRelease() and CDGetReleasedData() cannot be canceled. Therefore, never return cdOPERATION_CANCELLED in the callback function specified by pCallbackFunc parameter. 7. RAW Developmet Function ================================================================ CD-SDK 7 and later do not support the RAW development function. To use the development function for RAW data captured using a PowerShot digital camera, use the RD-SDK(RAW Development SDK).

FROM：http://blog.chinaunix.net/uid-27134408-id-4145092.html 目录[-] YUV、RGB、RAW DATA、JPEG 4种方式 YUV、RGB、RAW DATA、JPEG 4种方式区别 RAW和JPEG的区别为何要拍摄RAW？ JPEG格式有什么优点？我该拍摄RAW还是JPEG？后记摄像头数据格式数字

颜色的学问 (1)颜色的本质是光的波长，是因为有人去看才有了颜色这个概念，所以本质上来说，颜色是主观存在的。 (2)颜色的三个关键：亮度、色度、饱和度 (3)人的眼睛并非理想完美的颜色识别器件，图像表达也有清晰度和质量高低的差异 (4)科学研究如何定义（或者表达、记录、计算）一种颜色？通过一个二进制数来表达，比如RGB888，就是用24位二进制来表达16777216种颜色，每一个不同的数代表一种不同的颜色简单来讲, YUV: luma (Y) + chroma (UV) 格式，通常状况下sens.

简单来说, YUV: luma (Y) + chroma (UV) 格式，一般情况下sensor支持YUV422格式，即数据格式是按Y-U-Y-V次序输出的 RGB: 传统的红绿蓝格式，比如RGB565，其16-bit数据格式为5-bit R + 6-bit G + 5-bit B。G多一位，原因是人眼对绿色比较敏感。 RAW RGB: sensor的每一像素对应一个彩色滤光片，滤光片按B

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