Hello.
I am using a program with FFmpeg’s libav to demux a mp4 file, try to extract the video, whose format is 264 . The file is transmitted in streaming media, using http protocol . Program start receiving data at any time, I mean not from the head. Then it complains that "Missing reference picture,default is 0" and " decode_slice_header_error", as showed in the following picture This error generates from the functions named “avformat_open_input“ and “avformat_find_stream_info ” in FFmpeg libav. I try to print out the frame data my program received, and I found that the program can’t get IDR frame. (the begin of the frames always be 0 0 0 1 65, it means the frame is not IDR frame) So it complains no reference frame. In fact, I have checked that the IDR frame is nearly 1/55 of all the frames. I think the proportion is OK. So I am looking for your help about this problem. I am looking forward to hearing from you soon.
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