preface

The first impression of the word "live broadcast" on the public will be associated with television stations, news anchors, and live sports events, and will feel that it is beyond reach. However, with the rapid development of the Internet, more and more people focus on live online video. Major Internet technology companies (including: Play More, Live One, Fighting Fish, etc.) have also invested in the market for live Internet platforms. Video live broadcast is to push sports events, major events, personal live broadcasts and news to various viewing terminals in the form of video through the Internet, so that we can experience the joy and convenience of live broadcast anytime, anywhere. Not long ago, Shanghai Heniao Technology released a sharp tool that can experience live broadcast anytime and anywhere - Hemiao coding stick. It is a collection and encoding device for live broadcast through mobile phones, and is an H.264 hardware encoding device that supports high-definition 1080p video source input. It can be connected to computers, video cameras, SLR cameras GoPro、 Various high-definition signal sources, such as UAV, broadcast guide station, DVD, and so on, are combined with Hemiao LIVE APP for real-time network live broadcast. Now let's learn about this live broadcast weapon.

Unpacking

It can be seen at a glance that the outer package of Hemiao coding stick is quite simple. It uses a popular white paper packaging box, with the logo of Hemiao live broadcast printed on the front and some decorative patterns. In addition, a black paper handbag is specially customized for the product, which is convenient to carry.

The bottom of the box is printed with the WeChat official account of Hemiao Live and the QR code for app download, so that users can follow the latest official news and download apps. At the bottom is the customer service telephone of Heniao Electronic Technology.

The whole outer packing box adopts the shape design of upper and lower covers, which looks extremely tall.

After opening the upper cover, we saw our main character - Hemiao coding stick. The inner layer was wire material and instructions (with opening code).

The standard hardware of Hemiao coding stick is as shown above, including the host of Hemiao coding stick, Micro USB data cable supporting OTG, USB Type-C data cable, HDMI HD cable, HDMI to mini HDMI HD cable, and instructions (with access code).

Micro USB cable

USB Type-C data cable

HDMI to mini HDMI HD cable

HDMI HD cable

The color of Hemiao coding stick is stable black, the shell metal texture is quite good, and the left side is HDMI IN interface. (HDMI interface is used to connect camera, UAV GoPro、 HD set-top box/network box, PC and other devices with HDMI output capability as the source of image acquisition)

The logo is printed on the upper left corner of the front, and there are 28 hollowed out heat dissipation holes in the middle. The HD on the lower left corner indicates its maximum support 1080P@60fps Video input source for.

On the right is the USB interface (which transfers the collected video data from the OTG cable to the mobile phone) PWR interface (Micro USB interface), according to the staff of Hemiao, some smart phones can be charged by connecting the PWR interface.

Experience

First, scan the QR code below or the QR code on the back of the box, install the Hemiao Live APP, register an account, and log in successfully. Users can also search for the keyword "Hemiao Live" and download APP through mainstream application markets such as Tencent App Bao, Baidu Mobile Assistant, 360 Mobile Assistant and Peapod

Open the "Hmong LIVE" APP on the mobile phone desktop. On the login page, click Register to enter the new account registration page: enter the mobile phone number → click "Get verification code" → enter the verification code of the received message → enter the user password → click Register. After successful registration, return to the login interface, enter the user name and password and click "Login".

After successfully logging in to Hemiao Live APP, in the "Personal Center", select "Hemiao Coder" (the new user displays the status of "Not Opened"), enter the "Coder" page, click "Open Now", scan the [Open Code] on the instructions to open the use permission, and upgrade to an advanced user of Hemiao.

Coding rod connection diagram

The coding bar is connected to the mobile phone first through the mobile phone connection cable (select the corresponding mobile phone OTG connection cable according to different mobile phone models, and the OTG cable specially equipped for Hemiao cannot be replaced by the ordinary data cable). A prompt message pops up (Hemiao Live needs to obtain the access permission for the coding bar), indicating that the coding bar has been successfully connected to the mobile phone. Click "OK".

The encoder bar is connected to the video source equipment (such as camera, UAV, GoPro, high-definition set-top box/network box, PC, etc.) through the high-definition connection line of the video source (selected according to the interface condition). After the connection is completed, it can be used.

For example, using PC as the video source device, the encoder will capture the entire computer display and audio signal through HDMI.

You can directly select the MP4 video file saved on the mobile phone to save the video content you want to play in the live broadcast process to the mobile phone, which can be called at any time during the live broadcast process to achieve richer program content in the live broadcast.

In addition to the built-in WeChat video live broadcast function, Hemiao Live also supports the streaming third-party platform.

In "My Activity", click "+" in the upper right corner to enter the activity information filling interface, complete the activity information filling, and click "Add" to complete the activity creation. Then click the button on the cover of the event to enter the live event interface. The activities created on the Hemiao live broadcast platform are available 24 hours a day. If you want to promote in advance, please create activities in advance.

After entering the live broadcast interface, select "Hemiao Encoder" in the "Select Playback Source" column. (Signal sources include: mobile phone camera, Hemiao coding stick, USB camera, Hemiao encoder, network stream, MP4 file selection, live video review.)

In "Select Add Layer", you can edit the video again to make the live broadcast more exciting.

Hemiao Live supports LOGO customization, time display, rolling subtitles, advertising slogans, competition score mode, title customization, dynamic subtitle group and other features.

Taking the addition of "score mode" as an example, the user can select the score board template, edit the team name and score, and adjust the size, position, transparency, etc. of the score board. And the score information can be updated in real time in the live screen through the "score editing" below the score board layer.

Hemiao Live has built in WeChat video live broadcast. In the "Select Playback Source" column, click the small icon of QR code below, and then use the QR code generated by WeChat scanning to share on WeChat, or enter the WeChat management page. You can also share the live broadcast through WeChat and the circle of friends after the activity is created, or you can copy the page address and place it in the IE page to open the live broadcast.

Click "Live" in the "Streaming Control Bar". (There are more settings in the "Streaming Control Bar" to experience)

Sound adjustment: you can select: Encoder, mobile phone microphone, Bluetooth microphone, Encoder @ Bluetooth, and add background music.

Screen switching: you can select: coding stick mode, mobile phone mode, picture in picture mode, and modify picture in picture.

Switch camera: select front camera and rear camera of mobile phone

Atmosphere sound effect: you can choose: Bleach, NBA, NBA Rush horn, applause, nervous thinking, laughter, star laugh, my brother has been killed, dizzy, gunshots, goals, penalties, playing with him. It's really beautiful.

Advanced settings: You can select: brightness, contrast, saturation, code rate, image and sound delay settings.

Energy saving by screen pinning: used to pin the display screen during live broadcast, which becomes a dark screen and cannot be operated.

Bullet screen: used to switch the display of bullet screen content

Whitening: used to increase the whitening function of the image.

Enter the "Live broadcast settings" page, select the "Live broadcast room settings" tab, and find two settings in the settings: "rtmp address" and "Live broadcast code" (other platforms call it "String code stream"). "rtmp address"+"Live broadcast code" is the streaming address. In Hemiao Live, select the "Streaming" menu, and on the "Third party Streaming" page, scan the QR code of the streaming address generated above according to the prompt, and you will directly enter the live broadcast page. The streaming address entered is saved in the APP. When the next live broadcast, you can select this streaming address for the live broadcast. You don't need to scan and enter it again.

Live broadcast settings of Hemiao Live Personal Center:

Test Assistant: used to test the live network upload bandwidth. You can set the live broadcast output bandwidth and live broadcast resolution according to the tested parameters.

Live broadcast direction: used to set the display direction of live broadcast output, vertical and horizontal screens

Output code rate of mobile phone live broadcast: used to modify the upload bandwidth of images captured by mobile phone camera for live broadcast.

Resolution of mobile phone live broadcast: used to select the resolution of mobile phone camera live broadcast, full HD, HD, SD and smooth.

Auto focus during mobile phone live broadcast: used to select whether or not to auto focus during mobile phone camera live broadcast.

Encoder bar live broadcast output code rate: used to modify the live broadcast upload bandwidth of the image captured by the encoder bar.

Encoder bar live broadcast resolution: used to modify the image captured by the encoder bar for live broadcast resolution: full HD, HD, SD.

USB camera live broadcast output code rate: used to modify the bandwidth of USB camera captured images for live broadcast upload.

Live broadcast resolution of USB camera: used to modify the output resolution of USB camera captured image: HD, SD.

Auto focus of USB camera during live broadcast: used to modify the auto focus of USB camera, which is generally set to off.

Audio code rate: used to modify the audio code rate size during live broadcast: 128K, 160K, 192K, 256Kbps.

Audio acquisition rate: used to modify the audio acquisition rate. According to different platforms, the modified acquisition rates are: 48KHz, 44.1KHz.

Streaming and recording settings during live broadcast: streaming, streaming and recording, and recording.

summary

Hemiao Encoding Stick is a collection and coding device for live broadcast through mobile phones. It is an H.264 hardware coding device that supports high-definition 1080p @ 60fps input. It can access cameras, unmanned aerial vehicles, SLR cameras GoPro、 Guide station DVD、 Computer and other high-definition signal sources (HDMI), USB cameras can be directly connected to the USB interface of mobile phones, while combining with the HIMIAO LIVE APP for real-time webcast. As a lightweight handheld live broadcast device, it is quite simple from installation to use and easy to use, especially suitable for live broadcast of ball games, outdoor fishing, travel, etc. In short, for outdoor photography sharing, Hemiao live broadcast stick is a very ideal live broadcast weapon.

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