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