2021-04-16 23:21:06 +08:00
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# ----------------------------------------------------------------------------
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# pyglet
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# Copyright (c) 2006-2008 Alex Holkner
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2021-04-17 01:14:38 +08:00
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# Copyright (c) 2008-2021 pyglet contributors
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2021-04-16 23:21:06 +08:00
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in
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# the documentation and/or other materials provided with the
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# distribution.
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# * Neither the name of pyglet nor the names of its
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# contributors may be used to endorse or promote products
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# derived from this software without specific prior written
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# permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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# ----------------------------------------------------------------------------
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"""Wrapper for include/libswresample/swresample.h
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"""
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2022-04-08 23:07:41 +08:00
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from ctypes import c_int, c_int64
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from ctypes import c_uint8
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from ctypes import c_void_p, POINTER, Structure
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import pyglet.lib
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from pyglet.util import debug_print
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from . import compat
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2022-04-08 23:07:41 +08:00
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_debug = debug_print('debug_media')
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try:
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swresample = pyglet.lib.load_library(
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'swresample',
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win32='swresample-4',
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darwin='swresample.4'
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)
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version = 4
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except ImportError:
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if _debug:
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print("Failed to load: swresample-4. Trying older version.")
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swresample = pyglet.lib.load_library(
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'swresample',
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win32='swresample-3',
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darwin='swresample.3'
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)
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version = 3
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compat.set_version('swresample', version)
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SWR_CH_MAX = 32
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class SwrContext(Structure):
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pass
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swresample.swr_alloc_set_opts.restype = POINTER(SwrContext)
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swresample.swr_alloc_set_opts.argtypes = [POINTER(SwrContext),
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c_int64, c_int, c_int, c_int64,
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c_int, c_int, c_int, c_void_p]
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swresample.swr_init.restype = c_int
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swresample.swr_init.argtypes = [POINTER(SwrContext)]
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swresample.swr_free.argtypes = [POINTER(POINTER(SwrContext))]
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swresample.swr_convert.restype = c_int
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swresample.swr_convert.argtypes = [POINTER(SwrContext),
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POINTER(c_uint8) * SWR_CH_MAX,
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c_int,
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POINTER(POINTER(c_uint8)),
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c_int]
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swresample.swr_set_compensation.restype = c_int
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swresample.swr_set_compensation.argtypes = [POINTER(SwrContext),
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c_int, c_int]
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swresample.swr_get_out_samples.restype = c_int
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swresample.swr_get_out_samples.argtypes = [POINTER(SwrContext), c_int]
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__all__ = [
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'swresample',
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'SWR_CH_MAX',
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'SwrContext'
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]
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