Thank you for your reply.
It's very helpful to me. Regards, HSK -----Original Message----- From: "Arash Cordi"<[email protected]> To: "This list is about using libavcodec, libavformat, libavutil, libavdevice and libavfilter."<[email protected]>; Cc: Sent: 2012-09-07 (금) 16:06:33 Subject: Re: [Libav-user] Is ffmpeg possibe to decode H.263 Mode B? normally h263 fragments are as follow: start of frame --> [Mode A][Mode B] .... [Mode B] <---- end of frame you only need the first byte of h263 payload header which is the same for all Mode A,B,C; +-+-+-+-+-+-+-+-+ |F|P|SBIT |EBIT | +-+-+-+-+-+-+-+-+ you need timestamp and marker bit (to identify start and end of frame) from rtp payload. you also need to align fragments according to SBIT, EBIT in h263 payload header -- ArasH
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