mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
synced 2025-11-06 13:29:56 -05:00
9e70d05201
Rename struct rtp_payload to rtp_sbc_payload as it is specific for SBC codec payload. Add proper checks for endianity in rtp.h header and use uint8_t type where appropriated. Field frame_count is only 4 bit number, so add checks to prevent overflow. And because is_fragmented field is not parsed by decoder there is no support for decoding fragmented SBC frames. So throw an error in this case.
80 lines
1.9 KiB
C
80 lines
1.9 KiB
C
/*
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*
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* BlueZ - Bluetooth protocol stack for Linux
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*
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* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
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* Copyright (C) 2019 Pali Rohár <pali.rohar@gmail.com>
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*
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*
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* This library 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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* This library 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 this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include <endian.h>
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#include <stdint.h>
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#if defined(__BYTE_ORDER) && defined(__LITTLE_ENDIAN) && \
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__BYTE_ORDER == __LITTLE_ENDIAN
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struct rtp_header {
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uint8_t cc:4;
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uint8_t x:1;
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uint8_t p:1;
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uint8_t v:2;
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uint8_t pt:7;
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uint8_t m:1;
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uint16_t sequence_number;
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uint32_t timestamp;
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uint32_t ssrc;
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uint32_t csrc[0];
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} __attribute__ ((packed));
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struct rtp_sbc_payload {
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uint8_t frame_count:4;
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uint8_t rfa0:1;
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uint8_t is_last_fragment:1;
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uint8_t is_first_fragment:1;
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uint8_t is_fragmented:1;
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} __attribute__ ((packed));
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#elif defined(__BYTE_ORDER) && defined(__BIG_ENDIAN) && \
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__BYTE_ORDER == __BIG_ENDIAN
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struct rtp_header {
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uint8_t v:2;
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uint8_t p:1;
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uint8_t x:1;
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uint8_t cc:4;
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uint8_t m:1;
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uint8_t pt:7;
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uint16_t sequence_number;
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uint32_t timestamp;
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uint32_t ssrc;
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uint32_t csrc[0];
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} __attribute__ ((packed));
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struct rtp_sbc_payload {
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uint8_t is_fragmented:1;
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uint8_t is_first_fragment:1;
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uint8_t is_last_fragment:1;
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uint8_t rfa0:1;
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uint8_t frame_count:4;
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} __attribute__ ((packed));
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#else
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#error "Unknown byte order"
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#endif
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