def __init__(self, config):
import sys
try:
self.codec = ffi.dlopen('./librtpsbc.so')
except:
print 'Exception:', sys.exc_info()[0]
self.config = ffi.new('sbc_t *')
self.ts = ffi.new('unsigned int *', 0)
self.seq_num = ffi.new('unsigned int *', 0)
self._init_sbc_config(config)
self.codec.sbc_init(self.config, 0)
def __init__(self, config):
import sys
try:
self.codec = ffi.verify(b'#include "rtpsbc.h"',
libraries=[b'rtpsbc'],
ext_package=b'rtpsbc')
except:
print 'Exception:', sys.exc_info()[0]
self.config = ffi.new('sbc_t *')
self.ts = ffi.new('unsigned int *', 0)
self.seq_num = ffi.new('unsigned int *', 0)
self._init_sbc_config(config)
self.codec.sbc_init(self.config, 0)
def __init__(self, config):
import sys
try:
self.codec = ffi.verify(b'#include "rtpsbc.h"',
libraries=[b'rtpsbc'],
ext_package=b'rtpsbc')
except:
print 'Exception:', sys.exc_info()[0]
self.config = ffi.new('sbc_t *')
self.ts = ffi.new('unsigned int *', 0)
self.seq_num = ffi.new('unsigned int *', 0)
self._init_sbc_config(config)
self.codec.sbc_init(self.config, 0)
def __init__(self, config):
import sys
so_path = './librtpsbc.so'
if platform.machine() == 'aarch64':
so_path = './librtpsbc_aarch64.so'
try:
self.codec = ffi.dlopen(so_path)
except Exception as e:
print('Exception:' + str(sys.exc_info()[0]))
print(str(e))
self.config = ffi.new('sbc_t *')
self.ts = ffi.new('unsigned int *', 0)
self.seq_num = ffi.new('unsigned int *', 0)
self._init_sbc_config(config)
self.codec.sbc_init(self.config, 0)
def encode(self, fd, mtu, data):
"""
Encode the supplied data (byte array) and write to
the media transport file descriptor encapsulated
as RTP packets. The encoder will calculate the
required number of SBC frames and encapsulate as
RTP to fit the MTU size.
:param int fd: Media transport file descriptor
:param int mtu: Media transport MTU size as returned
when the media transport was acquired.
:param array{byte} data: Data to encode and send
over the media transport.
:return:
"""
self.codec.rtp_sbc_encode_to_fd(self.config, ffi.new('char[]', data),
len(data), mtu, self.ts, self.seq_num,
fd)
def decode(self, fd, mtu, max_len=2560):
"""
Read the media transport descriptor, depay
the RTP payload and decode the SBC frames into
a byte array. The maximum number of bytes to
be returned may be passed as an argument and all
available bytes are returned to the caller.
:param int fd: Media transport file descriptor
:param int mtu: Media transport MTU size as returned
when the media transport was acquired.
:param int max_len: Optional. Set maximum number of
bytes to read.
:return data: Decoded data bytes as an array.
:rtype: array{byte}
"""
output_buffer = ffi.new('char[]', max_len)
sz = self.codec.rtp_sbc_decode_from_fd(self.config, output_buffer,
max_len, mtu, fd)
return ffi.buffer(output_buffer[0:sz])
def decode(self, fd, mtu, max_len=2560):
"""
Read the media transport descriptor, depay
the RTP payload and decode the SBC frames into
a byte array. The maximum number of bytes to
be returned may be passed as an argument and all
available bytes are returned to the caller.
:param int fd: Media transport file descriptor
:param int mtu: Media transport MTU size as returned
when the media transport was acquired.
:param int max_len: Optional. Set maximum number of
bytes to read.
:return data: Decoded data bytes as an array.
:rtype: array{byte}
"""
output_buffer = ffi.new('char[]', max_len)
sz = self.codec.rtp_sbc_decode_from_fd(self.config,
output_buffer,
max_len,
mtu,
fd)
return ffi.buffer(output_buffer[0:sz])
def encode(self, fd, mtu, data):
"""
Encode the supplied data (byte array) and write to
the media transport file descriptor encapsulated
as RTP packets. The encoder will calculate the
required number of SBC frames and encapsulate as
RTP to fit the MTU size.
:param int fd: Media transport file descriptor
:param int mtu: Media transport MTU size as returned
when the media transport was acquired.
:param array{byte} data: Data to encode and send
over the media transport.
:return:
"""
self.codec.rtp_sbc_encode_to_fd(self.config,
ffi.new('char[]',
data),
len(data),
mtu,
self.ts,
self.seq_num,
fd)
