The downside is that as you'll have to do this without a graphical interface, the learning curve is quite high, and if you don't know what you're doing you can worsen the quality of your video or even make it unplayable. It'll allow you to use it in automation on your server, which can be incredibly handy for any starting streaming platform. Ffmpeg is purely command line, which is both its downside and strength. Ffmpeg, the swiss army knife of streamingįfmpeg is an incredibly versatile piece of software when it comes to media encoding, pushing and even restreaming other streams. To cover them would require several posts, so instead I'll just talk about the one I like the most: ffmpeg. There's a lot of good options out there on the internet, both paid and open source. This time I'd like to talk doing your own encodes and stream pushes.
The video frame collection in the video stream has been realized when the YUV data was collected last time, mainly using av_read_frame() to read the video data from the AVFormatContext and decode it (avcodec_decode_video2()).Hello everyone, Balder here. The overall process of collecting video stream data for H264 encoding mainly includes the following steps: Here, only YUV data is encoded into H264 bare stream, so you don't need to consider these for the time being operate. In the demo process of FFmpeg, there are actually operations such as creating stream avformat_new_stream(), writing header information avformat_write_header() and tail information av_write_trailer(), etc. The process of FFmpeg encoding is the inverse process of decoding, but the main line process is similar, as shown below: (portal) JavaCV FFmpeg captures camera YUV dataĬollecting camera data is a decoding process, while H264 encoding of the collected data is an encoding process, as shown in the figure:Īs can be seen from the above figure, during the encoding process, the data stream flows from AVFrame to AVPacket, while the decoding process is just the opposite, and the data stream flows from AVPacket to AVFrame. The last time I successfully collected the YUV data of the camera through FFmpeg, this time it has been modified for the last program, and the collected data is encoded by H264.
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