/*
  * RTP VP8 Packetizer
  * Copyright (c) 2010 Josh Allmann
  *
  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
  * FFmpeg is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #include "rtpenc.h"
 
 /* Based on a draft spec for VP8 RTP.
  * ( http://www.webmproject.org/code/specs/rtp/ ) */
 void ff_rtp_send_vp8(AVFormatContext *s1, const uint8_t *buf, int size)
 {
     RTPMuxContext *s = s1->priv_data;
     int len, max_packet_size;
 
     s->buf_ptr      = s->buf;
     s->timestamp    = s->cur_timestamp;
     max_packet_size = s->max_payload_size - 1; // minus one for header byte
 
     *s->buf_ptr++ = 1; // 0b1 indicates start of frame
     while (size > 0) {
         len = FFMIN(size, max_packet_size);
 
         memcpy(s->buf_ptr, buf, len);
         ff_rtp_send_data(s1, s->buf, len+1, size == len); // marker bit is last packet in frame
 
         size         -= len;
         buf          += len;
         s->buf_ptr    = s->buf;
         *s->buf_ptr++ = 0; // payload descriptor
     }
 }