Hi. I am new to C++ and FFmpeg and wanted to write application that streams video from camera (webcam at least) to some server.
I've seen StreamingGuide <https://trac.ffmpeg.org/wiki/StreamingGuide> and wanted to know how to implement it. I think that basic flow is like this, please correct me if I'm wrong: 1. Get input device AVInputFormat from libavdevice 2. Open that input with avformat_open_input 3. Find its streams' codecs 4. Get decoder with avcodec_find_decoder 5. Decode it somehow 6. Encode it for stream 7. Write data with muxer 8. Send muxed data to server So I imagine how to implement the first half of this list but not the second. 2 questions that I have are: 1. Do I understand the streaming flow right? What are the nuances that I must consider? What modules/methods should I look into to implement it? 2. How can I do a preview of stream in a GUI using, for example, Qt Quick? Is an input device blocked by one of the processes (either FFmpeg or Qt)? If it is, should I somehow copy frames for GUI to show them for user or just reference it? Thanks in advance! Kind regards, Timur Guseynov
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