RTP_H261_HEADER_SIZE   83 libavformat/rtpenc_h261.c         cur_frame_size = FFMIN(rtp_ctx->max_payload_size - RTP_H261_HEADER_SIZE, frame_size);
RTP_H261_HEADER_SIZE   96 libavformat/rtpenc_h261.c         memcpy(&rtp_ctx->buf[RTP_H261_HEADER_SIZE], frame_buf, cur_frame_size);
RTP_H261_HEADER_SIZE   97 libavformat/rtpenc_h261.c         ff_rtp_send_data(ctx, rtp_ctx->buf, RTP_H261_HEADER_SIZE + cur_frame_size, last_packet_of_frame);