| /* |
| * RTP packetizer for VP9 payload format (draft version 02) - experimental |
| * Copyright (c) 2016 Thomas Volkert <thomas@netzeal.de> |
| * |
| * 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" |
| |
| #define RTP_VP9_DESC_REQUIRED_SIZE 1 |
| |
| void ff_rtp_send_vp9(AVFormatContext *ctx, const uint8_t *buf, int size) |
| { |
| RTPMuxContext *rtp_ctx = ctx->priv_data; |
| int len; |
| |
| rtp_ctx->timestamp = rtp_ctx->cur_timestamp; |
| rtp_ctx->buf_ptr = rtp_ctx->buf; |
| |
| /* mark the first fragment */ |
| *rtp_ctx->buf_ptr++ = 0x08; |
| |
| while (size > 0) { |
| len = FFMIN(size, rtp_ctx->max_payload_size - RTP_VP9_DESC_REQUIRED_SIZE); |
| |
| if (len == size) { |
| /* mark the last fragment */ |
| rtp_ctx->buf[0] |= 0x04; |
| } |
| |
| memcpy(rtp_ctx->buf_ptr, buf, len); |
| ff_rtp_send_data(ctx, rtp_ctx->buf, len + RTP_VP9_DESC_REQUIRED_SIZE, size == len); |
| |
| size -= len; |
| buf += len; |
| |
| /* clear the end bit */ |
| rtp_ctx->buf[0] &= ~0x08; |
| } |
| } |