Multimedia playback method and system suitable for digital set-top boxes
A technology for multimedia playback and digital set-top boxes, applied in image communication, selective content distribution, electrical components, etc., can solve problems such as differences in multimedia resolution capabilities and different playback experiences, and avoid data overflow and blurred screens, ensure decoding efficiency, and improve audio and video performance. The effect of time synchronization
Active Publication Date: 2021-05-25
SICHUAN CHANGHONG NETWORK TECH CO LTD
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is: to overcome the problem of different playback experience caused by the difference in multimedia resolution capabilities of the chip platform in the digital set-top box, and to propose a multimedia playback method and system suitable for digital set-top boxes
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Embodiment
[0041] The present invention can use the open source software VLC or FFMPEG to complete the protocol analysis of the multimedia. In this embodiment, the open source VLC is used to analyze the multimedia protocol as an example in order to describe the working principle of the present invention in detail. The present embodiment adopts C / S (client / server) framework mode to realize, and the client initiates the play request to the service end and transmits the play address and the play control instruction, opens the reading and analyzing data module as a thread and opens the decoder of the bottom chip of the digital set-top box, Then wait for the amount of video data of the PES stream in the shared memory module to reach the start threshold. The VLC process is used as the server to initialize the shared memory, map the local process address, and wait for the multimedia analysis request. After the VLC process obtains the playback address, it starts the analysis scene for analysis, o...
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The invention relates to the field of multimedia playback. Aiming at the problem of different playback experiences caused by differences in multimedia resolution capabilities of chip platforms in digital set-top boxes, a multimedia playback method suitable for digital set-top boxes is proposed. Step 1: The client determines the playback source according to the user's choice Play the address and send the play address and the play control command selected by the user to the server; step 2, the server obtains the play file according to the play address, and performs protocol analysis on the play file according to the play control command to obtain ES stream and media information and package the ES stream into a PES stream, and transmit the PES stream and media information to the client; step 3, the client reads the PES stream and media information, decodes the PES stream according to the media information, and performs time synchronization of audio and video Display after control. The invention is applicable to the multimedia playing of the digital set-top box.
Description
technical field [0001] The invention relates to the field of multimedia playing, in particular to the field of multimedia playing of digital set-top boxes. Background technique [0002] The main functions of the multimedia player include protocol analysis, audio decoding, video decoding, subtitle decoding, audio and video and subtitle display. The subtitle data is separated, and the separated data are sent to their respective decoders. The decoder parses the basic stream data from the data and sends it to the renderer. The renderer converts the audio and video at the correct time according to the time tag of the basic stream data And the subtitles are displayed on the display device. [0003] Multimedia includes traditional container formats such as MKV, AVI, FLV, WMV, and TS, and protocol formats such as HLS, SmoothStreaming, and MPEG DASH in streaming media. For a long time, the functions of multimedia players on digital set-top boxes have been heavily dependent on the de...
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IPC IPC(8): H04N21/233H04N21/2343H04N21/235H04N21/239H04N21/43H04N21/435H04N21/439H04N21/4402H04N21/6377
CPCH04N21/2335H04N21/234309H04N21/235H04N21/2393H04N21/4307H04N21/435H04N21/4398H04N21/440218H04N21/6377
Inventor 蔡晓丽
Owner SICHUAN CHANGHONG NETWORK TECH CO LTD