MTP protocol mining

1. For protocol, what MTP can achieve is to use the virtual local area network (VLAN) in the computer, that is 127.0.0.1 and so on, to form a storage disk at the network end and perform functions such as transferring files. In the final analysis, my feeling is that it is a protocol or function that can connect U disk through VLAN

2. The former is synchronous media, the latter is to read the data of memory card!

3.

1. Different functions

① MTP allows users to access media files linearly on mobile devices

(2) PTP is only designed to download photos from digital cameras

(1) MTP can only read or write in a single transmission, which makes reading and writing impossible in parallel

(2) PTP adopts the combination of hardware and software design, and effectively corrects various parts that affect the synchronization accuracy

(1) MTP was originally used in USB transmission, but now it has been extended to TCP / IP and Bluetooth

② PTP is suitable for the distributed network communication system of multicast message, and provides the support of unicast message

4. Media transfer protocol is an extension of PTP (picture transfer protocol) protocol, which is mainly used to transfer media files. The valuable application is the license of synchronous DRM files. At present, only wmp10 (Windows media player 10) and wmp11 (Windows Media Player 11) support MTP protocol. Wmp11 adds support for player and album art. Getobjectproplist replaces getobjectinfo command of wmp10 when getting media file information
MTP supports the transfer of music files from digital audio player and movie files from mobile media player. It is a part of Windows Media framework, so it is closely related to Windows media player. Windows Vista has built-in support for MTP. To support MTP in Windows XP, you need to install Windows media player 10 or above. Mac and Linux have packages that support MTP
the application of MTP can be divided into two roles, one as initiator and the other as responder. For example, WMP (Windows Media Player) is the initiator, and portable media player device is the responder. Responders respond to the initiator's commands passively, and will not issue commands actively. Its main purpose is to transfer media files and associate metadata from (to) the device. It has optional additional support for remote control of the device and can read and set device parameters, such as special DRM related restricted content device parameters. The device can also send events to the host
MTP can be implemented on both USB protocol and TCP / IP protocol. It belongs to the upper application protocol and does not care about the underlying transport protocol. At present, most devices are based on USB protocol. MTP devices on the market include Motorola's Z6, u9, E8, and Sony's nwz-a81x series. In a word, more and more devices begin to support MTP. Microsoft officially has a PlaysForSure certification. If your device passes the Microsoft test, it will grant you a PlaysForSure logo.

5.

In Huawei nova2, you can refer to the following steps to open MTP mode:

1. Open Huawei mobile phone and find the "Settings" icon

6. MTP mode is a set of media transfer protocol developed by Microsoft. It is a communication protocol supported by Windows media player 10 of Microsoft for multimedia file exchange between devices. It realizes the simple file into a protocol transmission mode. Through this agreement, MiniPlayer can

7.

MTP means media transport protocol

1. is an extension based on PTP (picture transfer protocol) protocol, which is mainly used to transfer media files. The valuable application is the license of synchronous DRM files

2. at present, only wmp10 (Windows media player 10) and wmp11 (Windows Media Player 11) support MTP protocol. Wmp11 adds support for player and album art, and getobjectproplist replaces getobjectinfo command of wmp10 when obtaining media file information
   

3. MTP supports the transfer of music files on digital audio player and movie files on mobile media player. It is a part of Windows Media framework, so it is closely related to Windows media player

4. Windows Vista has built-in support for MTP. To support MTP in Windows XP, you need to install Windows media player 10 or above. Mac and Linux have packages that support MTP

5. the application of MTP can be divided into two roles, one is as initiator, the other is as responder. For example, WMP (Windows Media Player) is the initiator, and portable media player device is the responder. Responders respond to the initiator's commands passively, and will not issue commands actively

6. its main purpose is to transfer media files and associate metadata from (to) devices. It has optional additional support for remote control of devices, and can read and set device parameters, such as special DRM related restricted content device parameters. The device can also send events to the host

8. Usb-mtp (Media Transfer Protocol)

MTP is a connection technology that Microsoft freely discloses to digital cameras, media devices and other manufacturers. These manufacturers can write it into the "firmware" of their own devices. The basis of MTP is "photo transfer protocol" (PTP)

MTP support will be integrated into the future Microsoft operating system by upgrading or upgrading the operating system. Digital camera users can connect their digital devices to Microsoft operating system computers without installing additional drivers

with MTP, a digital camera will be recognized by windows as the same device as a USB flash drive, so that photographers can share their works with the outside world.

9. Android mobile phone connection mode selection: first, media device (MTP): can transfer files through the computer; 2、 The camera (PTP) can transmit photos through the computer; 3、 Charging only: accelerate charging and rece power consumption; 4、 Built in CD: contains mobile phone driver and instructions.

10. Protocol for newsgroups