Leading Video Encoder Supplier
DIGICAST is a pioneer and leader in video transmission technology, focusing on R&D, manufacturing and sales of video encoder and related products for digital TV/IPTV/OTT headend and live video applications. Our encoder series delivers ultra-low latency transmission, widely used in sports, education, church and other live scenarios.
Backed by independent R&D, proprietary patents and ISO9001 certification, our products serve over 300 global operators with stable performance. We offer factory-direct pricing, 24/7 lifetime after-sales support and flexible OEM/ODM services, catering to hotels, hospitals, resorts and more.
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Advantages of Video Encoder
One of the main benefits of video encoding is that it reduces the amount of storage space and bandwidth required for video data. Uncompressed video can take up terabytes of storage space, making it impractical for most applications. By compressing the data, video encoding makes it possible to store and share videos more efficiently.
Another advantage of video encoding is that it allows videos to be played back on a wide range of devices. Different devices have different requirements for video formats and codecs, so encoding ensures that the video can be played back on a variety of devices, including smartphones, tablets, laptops, and smart TVs.
A video encoder makes it possible to convert source video files into optimized and smaller chunks of data. These compressed and optimized videos can be transmitted over the internet easily. This allows for smooth streaming with minimal buffering and latency.
A video encoder is a software or hardware solution that uses algorithms to reduce the video file size without losing quality. It compresses raw video files into a suitable digital video format for online streaming. The encoder also ensures that the video is optimized for streaming on devices like smartphones and tablets.
Our Factory
Hangzhou Dtvane Technology Co., Ltd. is located in China National High-Tech Development Zone, focusing on digital TV and network video system product development and sales, especially in high-quality video compression processing and channel transmission technology to maintain a leading edge, which is the domestic first-class of professional video operating system products and technical service providers.
Product Application
DVB-S/S2/S2X/ATSC/DVB-C/DVB-T/ISDB-T DIGITAL Cable TV Broadcasting SYSTEM
Video/Audio play online Any Screen Anywhere Any time (CCTV/ UAV/ Conference/ Speech/ Church/ School/ Wedding and so on)
Analog TV System upgrade to HD Digital TV System
Various IPTV OTT Application (Community/ Hospitality /Community/Hospital/Resort and so on)
FTTH/CATV/HDTV Fiber Transmission Solution including but not limited to above, DIGICAST Provide devices and solution for all applications that involve to video/audio convert, transport and distribute.
R&D
All equipments in our product portfolio are fully self-developed in our laboratories. With technology development and upgrading, it drives us to innovate constantly, via continuous researches and investments, our R&D team consists of high-qualified engineers and technicians, who work hard to design, develop new devices and improve current technology.
Our service
1: Original Factory Directly Price, Ready to Ship
2: Quality Guarantee, no worries on Products, expand your market rapidly
3: After-Sales : Remote Access for Technical Support 24*7 Lifetime
4: Professional R&D Team for various OEM/ODM services
Different Types of Video Encoders
H.264/AVC
One of the most popular video encoding standards is H.264, sometimes referred to as Advanced Video Coding (AVC). It is a top-notch codec that provides superb video quality at reduced bitrates. Most devices and browsers support this codec, which is frequently used for online video streaming and playing.
H.264 has good compression efficiency and is the best choice for streaming internet videos since it makes videos load more quickly and play more smoothly. Moreover, it enables adaptive bitrate streaming, allowing the video quality to change depending on how quickly the viewer's internet connection is.
HEVC/H.265
A more contemporary video encoding format is HEVC/H.265, often known as high-efficiency video coding (HEVC) or H.265. It uses a more sophisticated compression technique than H.264 and offers better video quality at lower bitrates. With 4K and 8K video material, which needs more effective compression to preserve excellent quality while keeping the file size manageable, HEVC is very helpful.
The majority of current gadgets and browsers support HEVC, however because it demands more processing power than H.264, its popularity may be constrained for some use applications.
VP9
Google created the VP9 video codec as a replacement for H.264. The high-quality video compression offered by this open-source codec makes it perfect for online video streaming. The majority of web browsers, including Microsoft Edge, Mozilla Firefox, and Google Chrome, support VP9.
At the same bitrate, VP9 offers greater video quality than H.264, making it a desirable alternative for online video streaming services. Moreover, it enables adaptive bitrate streaming, allowing users to watch streams at the highest quality possible given their internet connection bandwidth.
AV1
A collection of technology companies led by Google, Microsoft, and Amazon called the Alliance for Open Media created the relatively new video codec known as AV1. For high-quality video streaming on the internet, AV1 is the best option because it is made to offer even better video compression than VP9.
An open-source codec called AV1 offers high-quality video compression at bitrates that are lower than those of competing codecs. Because of its capability for adaptive bitrate streaming, users can watch videos at the resolution that best suits their internet connection speed. However, AV1 uses more processing power than H.264 or VP9, which may prevent it from being widely used in some situations.
How Do Video Encoder Work
Video Encoding
A single video file contains a lot of data — image data for the video frames, audio data for the sound, metadata like the title, and other elements like subtitles. Storing and distributing an uncompressed video as it is would require a considerable amount of disk space and bandwidth.
Video encoding involves compressing the size of raw digital video files and turning them into a more efficient format for distribution. Practically every video streaming platform you can think of — YouTube, Netflix, Hulu — uses an encoder to deliver content to its users.
There are two widely used compression techniques
Intraframe: Intraframe compression, also known as spatial compression, compresses each frame in a video individually and looks for any redundancies to reduce data. For example, a blue sky has nearly identical pixel data, so a block of a uniform color can represent those areas to cut down on file size. This compression technique is effective at reducing file sizes while maintaining high image quality.
Interframe: Interframe compression, also known as temporal compression, uses a more complex technique to reduce file sizes. Instead of compressing each frame individually, it only encodes the differences in subsequent frames. This technique delivers more compression than intraframe compression.
Video Decoding
Once videos are compressed and transmitted, they have to be decompressed or converted back into their original form to be viewed. The goal of the decoding process is to reproduce the video as close to the original as possible. However, video quality playback can vary depending on the codec used.
Video quality
Video quality is one of the most critical factors to consider when choosing a video encoder. The encoder should be able to maintain the high quality of the original video while still compressing it to a manageable size. Take note of the trade-off between video quality and file size, finding the right balance in your situation.
Compression efficiency
Compression efficiency refers to how well a video encoder is in reducing the original file size without losing critical video data. The more effective the encoder is, the smaller the resulting file size. Efficient encoder are best used for non-linear editing systems, cloud and online streaming platforms, and social media sites.
Device compatibility
Another vital factor to consider when choosing a video encoder is its compatibility with different devices. Ensure that the video encoder is compatible with the device or software used to view it. For instance, apple devices use the prores encoder, while android devices use the vp9 and h.264/avc encoder.
Licensing and cost
Some video encoder may require a license fee to use them commercially. When choosing a encoder, consider the licensing fees and balance them with the encoder benefits. Open-source encoder are usually free to use, while proprietary ones have associated costs.
Encoding and decoding speed
The encoding and decoding speed of a encoder depends on the hardware used. For example, h.264/avc has hardware acceleration support and can be faster to encode and decode than other formats. Faster encoding and decoding can significantly impact post-production time and save resource cost when uploading or downloading videos.
Application of Video Encoder
Video encoders provide an easy and cost-effective means of sharing high definition video content over IP networks and the internet. They are used across markets like broadcasting, live production, education, eSports, house of worship, corporate communications, and more.
Live Streaming: One of the most common and key applications of video encoders is live streaming video to online platforms or an organization's own streaming server. By encoding the video source into an internet-friendly format, it can be shared live with audiences.
Broadcasting: For broadcasting applications, video encoders are used to encode video and audio sources for delivery to television transmitters, cable TV headends, satellite uplinks, and other distribution endpoints. Encoders support streams compliant with standards like DVB-T/T2, DVB-C, DVB-S/S2, and ATSC amongst others.
Recording and production: Video encoders encode input signals into formats like H.264 which are ideal for recording, editing, and post-production. The compressed video files are high quality but with a small file size, simplifying storage and manipulation.
Video distribution: Encoded video streams can also be distributed to remote displays and screens over IP infrastructures. Encoders facilitate digital signage, video walls, and other AV setups where high resolution video needs to be shared simultaneously in multiple locations via networks.
Connecting analog and digital systems: Encoders can also serve as a bridge between older analog video equipment and modern IP-based digital networks and devices. The encoder converts analog or HDMI signals into compressed streams that are compatible with the latest in AV over IP technology.
How to Set Up a Video Encoder
1. Installing the Encoder Software
Depending on the type of encoder you have chosen, the procedure for setting them up and using them will vary.
For example, for installing a hardware encoder, you'll generally have to follow these steps:
Connect the encoding device to the video source.
Connect the encoding device to the internet. It would help if you used the ethernet cable to create a more stable network.
Configure the device settings by adjusting video bitrate, resolution, audio requirements, etc.
Connect the encoding device to the streaming platform.
Start streaming.
Installing software encoders is much easier. You don't have to undergo the hassle of establishing multiple connections using physical cables. There are many live-streaming platforms that you can consider. All of them have different installation guidelines. But they still follow the same general pattern.
2. Connecting Your Camera and Audio Equipment
After setting up the encoder, you must ensure that all your other streaming components are functional and ready to use. Start by connecting your camera and microphone to the setup.
All you need to do is connect the camera and the microphone (or other audio equipment) to the computer using HDMI or SDI outputs. If you are using hardware encoders, ensure they have established a physical connection with the computer. Now, go to your streaming platform and configure the encoder settings to ensure that the audio and video signals are captured and compressed correctly.
3. Configuring the Encoder Settings
Next up, you should configure some advanced settings in your encoder as per your requirements. Doing so can be the difference between an average streaming experience and a great one.
Taking example, mentioned below are some alterations you can make to the software's default settings for an optimal streaming session. You can make these changes by accessing the “Settings” menu under the “Files” section.
Video Settings
The first point of interest should be the video settings area. You can make multiple adjustments here, including altering the video capture resolution, framerate, etc.
The Base (Canvas) Resolution basically means what will be the size of your video capture. By default, it'll be set as your entire screen. You can downsize the stream to only a portion of your scream, but it's not a common practice among streamers.
The Output (Scaled) Resolution should either be smaller than the base resolution or the same.
The Downscale Filter determines the final look of your stream. It's an essential component and should not be taken lightly.
Output Settings
Next, go to the output section. The first thing you need to do is change the Output Mode to Advanced.
Next up, go to the Recording section.
The most important setting here is the Recording Format field. Using MP4/MOV is inadvisable as doing so can make your video unrecoverable if there is a power outage or application crash. Using MKV or FLV is the safer option.
Another big decision is filling out the Encoder field. For this decision, consider the power and performance of your CPU and GPU.
For computers with an NVIDIA series GPU, NVENC is the best option. Mid-Range CPUs and AMD users should opt for AMF. On the other hand, if you have a powerful processor, x264 should be the best option.
Audio Settings
Lastly, you should try altering your audio settings for the best possible listening experience. Go to the Advanced tab of the Output section and choose the Audio option.
In the main area, you will only have the option to change the bitrate. You can bump it up to 320 KBPS for a better experience.
Now, navigate the Audio Settings section by choosing Audio on the left pane.
The first thing that you want to do is keep the Sample Rate the same as your microphone's.
Now, choose the Channel to be Stereo.
The Global Audio Devices is the section where you control your audio inputs. You should only use this section to enable or disable the audio inputs you will use in your live streams. Everything else should not be altered or changed.
4. Testing Your Live Stream
Next up, streamers should ensure all their settings and configurations run smoothly. For example, here's how you can give a trial run to your live stream settings using:
Navigate to the application's homepage after adjusting the settings and choosing your streaming service.
On the bottom right of the page, click on Start Streaming.
After recording for a few seconds, stop the stream and run your diagnostics.
Check out the recorded footage for any inconsistencies. You can also consult the OBS Studio log to see if there are any errors. It's located under the View section in the Logs area.
Troubleshooting and Maintenance Tips for Video Encoders
Check for Overheating
Video encoders generate heat due to the intensive workload of compression and streaming processes. If your encoder seems to be dropping frames or acting unstable, overheating could be an issue. Make sure your encoder is in a well-ventilated area, fans and vents are clear of dust, and all cooling components are functioning properly. For rackmount encoders, consistent data center temperature control and circulation are important.
Update Firmware and Software
Encoder manufacturers regularly release firmware and software updates to patch security issues, fix bugs, improve stability and add new features. Keeping your encoder up to date with the latest firmware and streaming software versions helps prevent potential problems and ensures all components are compatible. Most updates can be completed through the encoder interface or with the assistance of technical support.
Test and Calibrate
For mission-critical streaming events, testing your entire encode and delivery workflow in advance is key. Calibrate all inputs, outputs, resolution settings, streaming destinations and failover mechanisms to verify functionality and make adjustments as needed. Double check that you have redundancies in place for components like power sources, internet connections and distribution networks. Conducting dry run tests in the days leading up to major streaming can help guarantee everything operates properly when you're live.
Monitor Usage and Performance
Most professional encoders provide usage metrics, logging and alerts to detect abnormalities in performance. Monitor factors like CPU usage, memory consumption, stream call statistics and disc space regularly to ensure healthy encoder operation. Set threshold alerts for metrics that indicate potential issues like drastically increased latency, dropped frames or a large percentage of 502 gateway errors. Watch for any unexplained spikes or drops in resources and streaming quality.
Schedule Routine Maintenance
For on-premise hardware encoders, developing a regular maintenance schedule is highly recommended. This includes:
Vacuuming vents and fans to prevent overheating from dust buildup
Checking that all cable connections are secure and undamaged
Performing hardware diagnostics to detect potential component issues early
Re-seating modular components like capture cards to establish secure connections
Disc defragmentation and deletion of unnecessary cached files to optimize storage
If rackmount, inspecting rails, trays and brackets for proper installation
FAQ
As one of the most professional video encoder manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to wholesale high-grade video encoder from our factory.
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