Difficult-Rocket/libs/pyglet/media/codecs/wmf.py
shenjack f9eeafe322
好活!
readme update

看起来更像 Dear ImGui 一些(looks more like Dear ImGui

and some intersting feature to the button

remove debug

确认一下action

404 修改

writing theme

looks good

better?

a ?

alpha=255 not 256

looks better

try new pyglet first

看起来好一些

sync pyglet

水一手

这波必须得水一手了,要不然commit太少了(确信

丢点正经东西上去

顺手继承一下Options

补充docs

坏了,忘记水commit了(

至少我能早睡了(

这里还能水一点来着(

试试再说

reee

保证能跑(

同步lib not dr 的修改

忘记带上 None了

还是加上一个额外的判断参数吧

刷点commit也不错

先更新一下依赖版本

水commit啦

理论可行,实践开始!

构建参数喜加一

reeeee

更新一下 pyproject 的依赖

fix typing

looks better

水一个(

测试?

sync pyglet to master

A | Try use rust-cache

looks good?

what?

C | sync pyglet

A | 添加了一个 Button Draw Theme

A | Magic Number (确信)

A | 尽量不继承Options

sync pyglet

A | Add theme

A | Add more Theme information

Enhance | Theme

sync pyglet

Add | add unifont

Enhance | use os.walk in font loading

Enhance | Use i18n in font loading

Enhance | doc

sync pyglet

Add | add 3.12 build option to build_rs

Fix | Button position have a z

sync pyglet

A | Logger.py 启动!

sync pyglet

Changed | Bump pyo3 to 0.20.0

add logger.py update

logger!

Add | more logger!

Add | lib-not-dr

some lib-not-dr
2023-11-20 20:12:56 +08:00

847 lines
33 KiB
Python

import os
import platform
import warnings
from pyglet import image
from pyglet.libs.win32 import _kernel32 as kernel32
from pyglet.libs.win32 import _ole32 as ole32
from pyglet.libs.win32 import com
from pyglet.libs.win32.constants import *
from pyglet.libs.win32.types import *
from pyglet.media import Source
from pyglet.media.codecs import AudioFormat, AudioData, VideoFormat, MediaDecoder, StaticSource
from pyglet.util import debug_print, DecodeException
_debug = debug_print('debug_media')
try:
mfreadwrite = 'mfreadwrite'
mfplat = 'mfplat'
# System32 and SysWOW64 folders are opposite perception in Windows x64.
# System32 = x64 dll's | SysWOW64 = x86 dlls
# By default ctypes only seems to look in system32 regardless of Python architecture, which has x64 dlls.
if platform.architecture()[0] == '32bit':
if platform.machine().endswith('64'): # Machine is 64 bit, Python is 32 bit.
mfreadwrite = os.path.join(os.environ['WINDIR'], 'SysWOW64', 'mfreadwrite.dll')
mfplat = os.path.join(os.environ['WINDIR'], 'SysWOW64', 'mfplat.dll')
mfreadwrite_lib = ctypes.windll.LoadLibrary(mfreadwrite)
mfplat_lib = ctypes.windll.LoadLibrary(mfplat)
except OSError:
# Doesn't exist? Should stop import of library.
raise ImportError('Could not load WMF library.')
MF_SOURCE_READERF_ERROR = 0x00000001
MF_SOURCE_READERF_ENDOFSTREAM = 0x00000002
MF_SOURCE_READERF_NEWSTREAM = 0x00000004
MF_SOURCE_READERF_NATIVEMEDIATYPECHANGED = 0x00000010
MF_SOURCE_READERF_CURRENTMEDIATYPECHANGED = 0x00000020
MF_SOURCE_READERF_STREAMTICK = 0x00000100
# Audio attributes
MF_LOW_LATENCY = com.GUID(0x9c27891a, 0xed7a, 0x40e1, 0x88, 0xe8, 0xb2, 0x27, 0x27, 0xa0, 0x24, 0xee)
# Audio information
MF_MT_ALL_SAMPLES_INDEPENDENT = com.GUID(0xc9173739, 0x5e56, 0x461c, 0xb7, 0x13, 0x46, 0xfb, 0x99, 0x5c, 0xb9, 0x5f)
MF_MT_FIXED_SIZE_SAMPLES = com.GUID(0xb8ebefaf, 0xb718, 0x4e04, 0xb0, 0xa9, 0x11, 0x67, 0x75, 0xe3, 0x32, 0x1b)
MF_MT_SAMPLE_SIZE = com.GUID(0xdad3ab78, 0x1990, 0x408b, 0xbc, 0xe2, 0xeb, 0xa6, 0x73, 0xda, 0xcc, 0x10)
MF_MT_COMPRESSED = com.GUID(0x3afd0cee, 0x18f2, 0x4ba5, 0xa1, 0x10, 0x8b, 0xea, 0x50, 0x2e, 0x1f, 0x92)
MF_MT_WRAPPED_TYPE = com.GUID(0x4d3f7b23, 0xd02f, 0x4e6c, 0x9b, 0xee, 0xe4, 0xbf, 0x2c, 0x6c, 0x69, 0x5d)
MF_MT_AUDIO_NUM_CHANNELS = com.GUID(0x37e48bf5, 0x645e, 0x4c5b, 0x89, 0xde, 0xad, 0xa9, 0xe2, 0x9b, 0x69, 0x6a)
MF_MT_AUDIO_SAMPLES_PER_SECOND = com.GUID(0x5faeeae7, 0x0290, 0x4c31, 0x9e, 0x8a, 0xc5, 0x34, 0xf6, 0x8d, 0x9d, 0xba)
MF_MT_AUDIO_FLOAT_SAMPLES_PER_SECOND = com.GUID(0xfb3b724a, 0xcfb5, 0x4319, 0xae, 0xfe, 0x6e, 0x42, 0xb2, 0x40, 0x61, 0x32)
MF_MT_AUDIO_AVG_BYTES_PER_SECOND = com.GUID(0x1aab75c8, 0xcfef, 0x451c, 0xab, 0x95, 0xac, 0x03, 0x4b, 0x8e, 0x17, 0x31)
MF_MT_AUDIO_BLOCK_ALIGNMENT = com.GUID(0x322de230, 0x9eeb, 0x43bd, 0xab, 0x7a, 0xff, 0x41, 0x22, 0x51, 0x54, 0x1d)
MF_MT_AUDIO_BITS_PER_SAMPLE = com.GUID(0xf2deb57f, 0x40fa, 0x4764, 0xaa, 0x33, 0xed, 0x4f, 0x2d, 0x1f, 0xf6, 0x69)
MF_MT_AUDIO_VALID_BITS_PER_SAMPLE = com.GUID(0xd9bf8d6a, 0x9530, 0x4b7c, 0x9d, 0xdf, 0xff, 0x6f, 0xd5, 0x8b, 0xbd, 0x06)
MF_MT_AUDIO_SAMPLES_PER_BLOCK = com.GUID(0xaab15aac, 0xe13a, 0x4995, 0x92, 0x22, 0x50, 0x1e, 0xa1, 0x5c, 0x68, 0x77)
MF_MT_AUDIO_CHANNEL_MASK = com.GUID(0x55fb5765, 0x644a, 0x4caf, 0x84, 0x79, 0x93, 0x89, 0x83, 0xbb, 0x15, 0x88)
MF_PD_DURATION = com.GUID(0x6c990d33, 0xbb8e, 0x477a, 0x85, 0x98, 0xd, 0x5d, 0x96, 0xfc, 0xd8, 0x8a)
# Media types categories
MF_MT_MAJOR_TYPE = com.GUID(0x48eba18e, 0xf8c9, 0x4687, 0xbf, 0x11, 0x0a, 0x74, 0xc9, 0xf9, 0x6a, 0x8f)
MF_MT_SUBTYPE = com.GUID(0xf7e34c9a, 0x42e8, 0x4714, 0xb7, 0x4b, 0xcb, 0x29, 0xd7, 0x2c, 0x35, 0xe5)
# Major types
MFMediaType_Audio = com.GUID(0x73647561, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)
MFMediaType_Video = com.GUID(0x73646976, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71)
MFMediaType_Protected = com.GUID(0x7b4b6fe6, 0x9d04, 0x4494, 0xbe, 0x14, 0x7e, 0x0b, 0xd0, 0x76, 0xc8, 0xe4)
MFMediaType_Image = com.GUID(0x72178C23, 0xE45B, 0x11D5, 0xBC, 0x2A, 0x00, 0xB0, 0xD0, 0xF3, 0xF4, 0xAB)
MFMediaType_HTML = com.GUID(0x72178C24, 0xE45B, 0x11D5, 0xBC, 0x2A, 0x00, 0xB0, 0xD0, 0xF3, 0xF4, 0xAB)
MFMediaType_Subtitle = com.GUID(0xa6d13581, 0xed50, 0x4e65, 0xae, 0x08, 0x26, 0x06, 0x55, 0x76, 0xaa, 0xcc)
# Video subtypes, attributes, and enums (Uncompressed)
D3DFMT_X8R8G8B8 = 22
D3DFMT_P8 = 41
D3DFMT_A8R8G8B8 = 21
MFVideoFormat_RGB32 = com.GUID(D3DFMT_X8R8G8B8, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)
MFVideoFormat_RGB8 = com.GUID(D3DFMT_P8, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)
MFVideoFormat_ARGB32 = com.GUID(D3DFMT_A8R8G8B8, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)
MFVideoInterlace_Progressive = 2
MF_MT_INTERLACE_MODE = com.GUID(0xe2724bb8, 0xe676, 0x4806, 0xb4, 0xb2, 0xa8, 0xd6, 0xef, 0xb4, 0x4c, 0xcd)
MF_MT_FRAME_SIZE = com.GUID(0x1652c33d, 0xd6b2, 0x4012, 0xb8, 0x34, 0x72, 0x03, 0x08, 0x49, 0xa3, 0x7d)
MF_MT_FRAME_RATE = com.GUID(0xc459a2e8, 0x3d2c, 0x4e44, 0xb1, 0x32, 0xfe, 0xe5, 0x15, 0x6c, 0x7b, 0xb0)
MF_MT_PIXEL_ASPECT_RATIO = com.GUID(0xc6376a1e, 0x8d0a, 0x4027, 0xbe, 0x45, 0x6d, 0x9a, 0x0a, 0xd3, 0x9b, 0xb6)
MF_MT_DRM_FLAGS = com.GUID(0x8772f323, 0x355a, 0x4cc7, 0xbb, 0x78, 0x6d, 0x61, 0xa0, 0x48, 0xae, 0x82)
MF_MT_DEFAULT_STRIDE = com.GUID(0x644b4e48, 0x1e02, 0x4516, 0xb0, 0xeb, 0xc0, 0x1c, 0xa9, 0xd4, 0x9a, 0xc6)
# Audio Subtypes (Uncompressed)
WAVE_FORMAT_PCM = 1
WAVE_FORMAT_IEEE_FLOAT = 3
MFAudioFormat_PCM = com.GUID(WAVE_FORMAT_PCM, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)
MFAudioFormat_Float = com.GUID(WAVE_FORMAT_IEEE_FLOAT, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)
# Image subtypes.
MFImageFormat_RGB32 = com.GUID(0x00000016, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)
MFImageFormat_JPEG = com.GUID(0x19e4a5aa, 0x5662, 0x4fc5, 0xa0, 0xc0, 0x17, 0x58, 0x02, 0x8e, 0x10, 0x57)
# Video attributes
# Enables hardware decoding
MF_READWRITE_ENABLE_HARDWARE_TRANSFORMS = com.GUID(0xa634a91c, 0x822b, 0x41b9, 0xa4, 0x94, 0x4d, 0xe4, 0x64, 0x36, 0x12,
0xb0)
# Enable video decoding
MF_SOURCE_READER_ENABLE_VIDEO_PROCESSING = com.GUID(0xfb394f3d, 0xccf1, 0x42ee, 0xbb, 0xb3, 0xf9, 0xb8, 0x45, 0xd5,
0x68, 0x1d)
MF_SOURCE_READER_D3D_MANAGER = com.GUID(0xec822da2, 0xe1e9, 0x4b29, 0xa0, 0xd8, 0x56, 0x3c, 0x71, 0x9f, 0x52, 0x69)
MF_MEDIA_ENGINE_DXGI_MANAGER = com.GUID(0x065702da, 0x1094, 0x486d, 0x86, 0x17, 0xee, 0x7c, 0xc4, 0xee, 0x46, 0x48)
MF_SOURCE_READER_ENABLE_ADVANCED_VIDEO_PROCESSING = com.GUID(0xf81da2c, 0xb537, 0x4672, 0xa8, 0xb2, 0xa6, 0x81, 0xb1,
0x73, 0x7, 0xa3)
# Some common errors
MF_E_INVALIDSTREAMNUMBER = -1072875853 # 0xC00D36B3
MF_E_UNSUPPORTED_BYTESTREAM_TYPE = -1072875836 # 0xC00D36C4
MF_E_NO_MORE_TYPES = 0xC00D36B9
MF_E_TOPO_CODEC_NOT_FOUND = -1072868846 # 0xC00D5212
VT_I8 = 20 # Only enum we care about: https://docs.microsoft.com/en-us/windows/win32/api/wtypes/ne-wtypes-varenum
def timestamp_from_wmf(timestamp): # 100-nanoseconds
return float(timestamp) / 10000000
def timestamp_to_wmf(timestamp): # 100-nanoseconds
return int(timestamp * 10000000)
class IMFAttributes(com.pIUnknown):
_methods_ = [
('GetItem',
com.STDMETHOD()),
('GetItemType',
com.STDMETHOD()),
('CompareItem',
com.STDMETHOD()),
('Compare',
com.STDMETHOD()),
('GetUINT32',
com.STDMETHOD(com.REFIID, POINTER(c_uint32))),
('GetUINT64',
com.STDMETHOD(com.REFIID, POINTER(c_uint64))),
('GetDouble',
com.STDMETHOD()),
('GetGUID',
com.STDMETHOD(com.REFIID, POINTER(com.GUID))),
('GetStringLength',
com.STDMETHOD()),
('GetString',
com.STDMETHOD()),
('GetAllocatedString',
com.STDMETHOD()),
('GetBlobSize',
com.STDMETHOD()),
('GetBlob',
com.STDMETHOD()),
('GetAllocatedBlob',
com.STDMETHOD()),
('GetUnknown',
com.STDMETHOD()),
('SetItem',
com.STDMETHOD()),
('DeleteItem',
com.STDMETHOD()),
('DeleteAllItems',
com.STDMETHOD()),
('SetUINT32',
com.STDMETHOD(com.REFIID, c_uint32)),
('SetUINT64',
com.STDMETHOD()),
('SetDouble',
com.STDMETHOD()),
('SetGUID',
com.STDMETHOD(com.REFIID, com.REFIID)),
('SetString',
com.STDMETHOD()),
('SetBlob',
com.STDMETHOD()),
('SetUnknown',
com.STDMETHOD(com.REFIID, com.pIUnknown)),
('LockStore',
com.STDMETHOD()),
('UnlockStore',
com.STDMETHOD()),
('GetCount',
com.STDMETHOD()),
('GetItemByIndex',
com.STDMETHOD()),
('CopyAllItems',
com.STDMETHOD(c_void_p)), # IMFAttributes
]
class IMFMediaBuffer(com.pIUnknown):
_methods_ = [
('Lock',
com.STDMETHOD(POINTER(POINTER(BYTE)), POINTER(DWORD), POINTER(DWORD))),
('Unlock',
com.STDMETHOD()),
('GetCurrentLength',
com.STDMETHOD(POINTER(DWORD))),
('SetCurrentLength',
com.STDMETHOD(DWORD)),
('GetMaxLength',
com.STDMETHOD(POINTER(DWORD)))
]
class IMFSample(IMFAttributes, com.pIUnknown):
_methods_ = [
('GetSampleFlags',
com.STDMETHOD()),
('SetSampleFlags',
com.STDMETHOD()),
('GetSampleTime',
com.STDMETHOD()),
('SetSampleTime',
com.STDMETHOD()),
('GetSampleDuration',
com.STDMETHOD(POINTER(c_ulonglong))),
('SetSampleDuration',
com.STDMETHOD(DWORD, IMFMediaBuffer)),
('GetBufferCount',
com.STDMETHOD(POINTER(DWORD))),
('GetBufferByIndex',
com.STDMETHOD(DWORD, IMFMediaBuffer)),
('ConvertToContiguousBuffer',
com.STDMETHOD(POINTER(IMFMediaBuffer))), # out
('AddBuffer',
com.STDMETHOD(POINTER(DWORD))),
('RemoveBufferByIndex',
com.STDMETHOD()),
('RemoveAllBuffers',
com.STDMETHOD()),
('GetTotalLength',
com.STDMETHOD(POINTER(DWORD))),
('CopyToBuffer',
com.STDMETHOD()),
]
class IMFMediaType(IMFAttributes, com.pIUnknown):
_methods_ = [
('GetMajorType',
com.STDMETHOD()),
('IsCompressedFormat',
com.STDMETHOD()),
('IsEqual',
com.STDMETHOD()),
('GetRepresentation',
com.STDMETHOD()),
('FreeRepresentation',
com.STDMETHOD()),
]
class IMFByteStream(com.pIUnknown):
_methods_ = [
('GetCapabilities',
com.STDMETHOD()),
('GetLength',
com.STDMETHOD()),
('SetLength',
com.STDMETHOD()),
('GetCurrentPosition',
com.STDMETHOD()),
('SetCurrentPosition',
com.STDMETHOD(c_ulonglong)),
('IsEndOfStream',
com.STDMETHOD()),
('Read',
com.STDMETHOD()),
('BeginRead',
com.STDMETHOD()),
('EndRead',
com.STDMETHOD()),
('Write',
com.STDMETHOD(POINTER(BYTE), ULONG, POINTER(ULONG))),
('BeginWrite',
com.STDMETHOD()),
('EndWrite',
com.STDMETHOD()),
('Seek',
com.STDMETHOD()),
('Flush',
com.STDMETHOD()),
('Close',
com.STDMETHOD()),
]
class IMFSourceReader(com.pIUnknown):
_methods_ = [
('GetStreamSelection',
com.STDMETHOD(DWORD, POINTER(BOOL))), # in, out
('SetStreamSelection',
com.STDMETHOD(DWORD, BOOL)),
('GetNativeMediaType',
com.STDMETHOD(DWORD, DWORD, POINTER(IMFMediaType))),
('GetCurrentMediaType',
com.STDMETHOD(DWORD, POINTER(IMFMediaType))),
('SetCurrentMediaType',
com.STDMETHOD(DWORD, POINTER(DWORD), IMFMediaType)),
('SetCurrentPosition',
com.STDMETHOD(com.REFIID, POINTER(PROPVARIANT))),
('ReadSample',
com.STDMETHOD(DWORD, DWORD, POINTER(DWORD), POINTER(DWORD), POINTER(c_longlong), POINTER(IMFSample))),
('Flush',
com.STDMETHOD(DWORD)), # in
('GetServiceForStream',
com.STDMETHOD()),
('GetPresentationAttribute',
com.STDMETHOD(DWORD, com.REFIID, POINTER(PROPVARIANT))),
]
class WAVEFORMATEX(ctypes.Structure):
_fields_ = [
('wFormatTag', WORD),
('nChannels', WORD),
('nSamplesPerSec', DWORD),
('nAvgBytesPerSec', DWORD),
('nBlockAlign', WORD),
('wBitsPerSample', WORD),
('cbSize', WORD),
]
def __repr__(self):
return 'WAVEFORMATEX(wFormatTag={}, nChannels={}, nSamplesPerSec={}, nAvgBytesPersec={}' \
', nBlockAlign={}, wBitsPerSample={}, cbSize={})'.format(
self.wFormatTag, self.nChannels, self.nSamplesPerSec,
self.nAvgBytesPerSec, self.nBlockAlign, self.wBitsPerSample,
self.cbSize)
# Stream constants
MF_SOURCE_READER_ALL_STREAMS = 0xfffffffe
MF_SOURCE_READER_ANY_STREAM = 4294967294 # 0xfffffffe
MF_SOURCE_READER_FIRST_AUDIO_STREAM = 4294967293 # 0xfffffffd
MF_SOURCE_READER_FIRST_VIDEO_STREAM = 0xfffffffc
MF_SOURCE_READER_MEDIASOURCE = 0xffffffff
# Version calculation
if WINDOWS_7_OR_GREATER:
MF_SDK_VERSION = 0x0002
else:
MF_SDK_VERSION = 0x0001
MF_API_VERSION = 0x0070 # Only used in Vista.
MF_VERSION = (MF_SDK_VERSION << 16 | MF_API_VERSION)
MFStartup = mfplat_lib.MFStartup
MFStartup.restype = HRESULT
MFStartup.argtypes = [LONG, DWORD]
MFShutdown = mfplat_lib.MFShutdown
MFShutdown.restype = HRESULT
MFShutdown.argtypes = []
MFCreateAttributes = mfplat_lib.MFCreateAttributes
MFCreateAttributes.restype = HRESULT
MFCreateAttributes.argtypes = [POINTER(IMFAttributes), c_uint32] # attributes, cInitialSize
MFCreateSourceReaderFromURL = mfreadwrite_lib.MFCreateSourceReaderFromURL
MFCreateSourceReaderFromURL.restype = HRESULT
MFCreateSourceReaderFromURL.argtypes = [LPCWSTR, IMFAttributes, POINTER(IMFSourceReader)]
MFCreateSourceReaderFromByteStream = mfreadwrite_lib.MFCreateSourceReaderFromByteStream
MFCreateSourceReaderFromByteStream.restype = HRESULT
MFCreateSourceReaderFromByteStream.argtypes = [IMFByteStream, IMFAttributes, POINTER(IMFSourceReader)]
if WINDOWS_7_OR_GREATER:
MFCreateMFByteStreamOnStream = mfplat_lib.MFCreateMFByteStreamOnStream
MFCreateMFByteStreamOnStream.restype = HRESULT
MFCreateMFByteStreamOnStream.argtypes = [c_void_p, POINTER(IMFByteStream)]
MFCreateTempFile = mfplat_lib.MFCreateTempFile
MFCreateTempFile.restype = HRESULT
MFCreateTempFile.argtypes = [UINT, UINT, UINT, POINTER(IMFByteStream)]
MFCreateMediaType = mfplat_lib.MFCreateMediaType
MFCreateMediaType.restype = HRESULT
MFCreateMediaType.argtypes = [POINTER(IMFMediaType)]
MFCreateWaveFormatExFromMFMediaType = mfplat_lib.MFCreateWaveFormatExFromMFMediaType
MFCreateWaveFormatExFromMFMediaType.restype = HRESULT
MFCreateWaveFormatExFromMFMediaType.argtypes = [IMFMediaType, POINTER(POINTER(WAVEFORMATEX)), POINTER(c_uint32), c_uint32]
class WMFSource(Source):
low_latency = True # Quicker latency but possible quality loss.
decode_audio = True
decode_video = True
def __init__(self, filename, file=None):
assert any([self.decode_audio, self.decode_video]), "Source must decode audio, video, or both, not none."
self._current_video_sample = None
self._current_video_buffer = None
self._timestamp = 0
self._attributes = None
self._stream_obj = None
self._imf_bytestream = None
self._wfx = None
self._stride = None
self.set_config_attributes()
# Create SourceReader
self._source_reader = IMFSourceReader()
# If it's a file, we need to load it as a stream.
if file is not None:
data = file.read()
self._imf_bytestream = IMFByteStream()
data_len = len(data)
if WINDOWS_7_OR_GREATER:
# Stole code from GDIPlus for older IStream support.
hglob = kernel32.GlobalAlloc(GMEM_MOVEABLE, data_len)
ptr = kernel32.GlobalLock(hglob)
ctypes.memmove(ptr, data, data_len)
kernel32.GlobalUnlock(hglob)
# Create IStream
self._stream_obj = com.pIUnknown()
ole32.CreateStreamOnHGlobal(hglob, True, ctypes.byref(self._stream_obj))
# MFCreateMFByteStreamOnStreamEx for future async operations exists, however Windows 8+ only. Requires new interface
# (Also unsure how/if new Windows async functions and callbacks work with ctypes.)
MFCreateMFByteStreamOnStream(self._stream_obj, ctypes.byref(self._imf_bytestream))
else:
# Vista does not support MFCreateMFByteStreamOnStream.
# HACK: Create file in Windows temp folder to write our byte data to.
# (Will be automatically deleted when IMFByteStream is Released.)
MFCreateTempFile(MF_ACCESSMODE_READWRITE,
MF_OPENMODE_DELETE_IF_EXIST,
MF_FILEFLAGS_NONE,
ctypes.byref(self._imf_bytestream))
wrote_length = ULONG()
data_ptr = cast(data, POINTER(BYTE))
self._imf_bytestream.Write(data_ptr, data_len, ctypes.byref(wrote_length))
self._imf_bytestream.SetCurrentPosition(0)
if wrote_length.value != data_len:
raise DecodeException("Could not write all of the data to the bytestream file.")
try:
MFCreateSourceReaderFromByteStream(self._imf_bytestream, self._attributes, ctypes.byref(self._source_reader))
except OSError as err:
raise DecodeException(err) from None
else:
# We can just load from filename if no file object specified..
try:
MFCreateSourceReaderFromURL(filename, self._attributes, ctypes.byref(self._source_reader))
except OSError as err:
raise DecodeException(err) from None
if self.decode_audio:
self._load_audio()
if self.decode_video:
self._load_video()
assert self.audio_format or self.video_format, "Source was decoded, but no video or audio streams were found."
# Get duration of the media file after everything has been ok to decode.
try:
prop = PROPVARIANT()
self._source_reader.GetPresentationAttribute(MF_SOURCE_READER_MEDIASOURCE,
ctypes.byref(MF_PD_DURATION),
ctypes.byref(prop))
self._duration = timestamp_from_wmf(prop.llVal)
ole32.PropVariantClear(ctypes.byref(prop))
except OSError:
warnings.warn("Could not determine duration of media file: '{}'.".format(filename))
def _load_audio(self, stream=MF_SOURCE_READER_FIRST_AUDIO_STREAM):
""" Prepares the audio stream for playback by detecting if it's compressed and attempting to decompress to PCM.
Default: Only get the first available audio stream.
"""
# Will be an audio file.
self._audio_stream_index = stream
# Get what the native/real media type is (audio only)
imfmedia = IMFMediaType()
try:
self._source_reader.GetNativeMediaType(self._audio_stream_index, 0, ctypes.byref(imfmedia))
except OSError as err:
if err.winerror == MF_E_INVALIDSTREAMNUMBER:
assert _debug('WMFAudioDecoder: No audio stream found.')
return
# Get Major media type (Audio, Video, etc)
# TODO: Make GUID take no arguments for a null version:
guid_audio_type = com.GUID(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
imfmedia.GetGUID(MF_MT_MAJOR_TYPE, ctypes.byref(guid_audio_type))
if guid_audio_type == MFMediaType_Audio:
assert _debug('WMFAudioDecoder: Found Audio Stream.')
# Deselect any other streams if we don't need them. (Small speedup)
if not self.decode_video:
self._source_reader.SetStreamSelection(MF_SOURCE_READER_ANY_STREAM, False)
# Select first audio stream.
self._source_reader.SetStreamSelection(MF_SOURCE_READER_FIRST_AUDIO_STREAM, True)
# Check sub media type, AKA what kind of codec
guid_compressed = com.GUID(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
imfmedia.GetGUID(MF_MT_SUBTYPE, ctypes.byref(guid_compressed))
if guid_compressed == MFAudioFormat_PCM or guid_compressed == MFAudioFormat_Float:
assert _debug('WMFAudioDecoder: Found Uncompressed Audio:', guid_compressed)
else:
assert _debug('WMFAudioDecoder: Found Compressed Audio:', guid_compressed)
# If audio is compressed, attempt to decompress it by forcing source reader to use PCM
mf_mediatype = IMFMediaType()
MFCreateMediaType(ctypes.byref(mf_mediatype))
mf_mediatype.SetGUID(MF_MT_MAJOR_TYPE, MFMediaType_Audio)
mf_mediatype.SetGUID(MF_MT_SUBTYPE, MFAudioFormat_PCM)
try:
self._source_reader.SetCurrentMediaType(self._audio_stream_index, None, mf_mediatype)
except OSError as err: # Can't decode codec.
raise DecodeException(err) from None
# Current media type should now be properly decoded at this point.
decoded_media_type = IMFMediaType() # Maybe reusing older IMFMediaType will work?
self._source_reader.GetCurrentMediaType(self._audio_stream_index, ctypes.byref(decoded_media_type))
wfx_length = ctypes.c_uint32()
wfx = POINTER(WAVEFORMATEX)()
MFCreateWaveFormatExFromMFMediaType(decoded_media_type,
ctypes.byref(wfx),
ctypes.byref(wfx_length),
0)
self._wfx = wfx.contents
self.audio_format = AudioFormat(channels=self._wfx.nChannels,
sample_size=self._wfx.wBitsPerSample,
sample_rate=self._wfx.nSamplesPerSec)
else:
assert _debug('WMFAudioDecoder: Audio stream not found')
def get_format(self):
"""Returns the WAVEFORMATEX data which has more information thah audio_format"""
return self._wfx
def _load_video(self, stream=MF_SOURCE_READER_FIRST_VIDEO_STREAM):
self._video_stream_index = stream
# Get what the native/real media type is (video only)
imfmedia = IMFMediaType()
try:
self._source_reader.GetCurrentMediaType(self._video_stream_index, ctypes.byref(imfmedia))
except OSError as err:
if err.winerror == MF_E_INVALIDSTREAMNUMBER:
assert _debug('WMFVideoDecoder: No video stream found.')
return
assert _debug('WMFVideoDecoder: Found Video Stream')
# All video is basically compressed, try to decompress.
uncompressed_mt = IMFMediaType()
MFCreateMediaType(ctypes.byref(uncompressed_mt))
imfmedia.CopyAllItems(uncompressed_mt)
imfmedia.Release()
uncompressed_mt.SetGUID(MF_MT_SUBTYPE, MFVideoFormat_ARGB32)
uncompressed_mt.SetUINT32(MF_MT_INTERLACE_MODE, MFVideoInterlace_Progressive)
uncompressed_mt.SetUINT32(MF_MT_ALL_SAMPLES_INDEPENDENT, 1)
try:
self._source_reader.SetCurrentMediaType(self._video_stream_index, None, uncompressed_mt)
except OSError as err: # Can't decode codec.
raise DecodeException(err) from None
height, width = self._get_attribute_size(uncompressed_mt, MF_MT_FRAME_SIZE)
self.video_format = VideoFormat(width=width, height=height)
assert _debug('WMFVideoDecoder: Frame width: {} height: {}'.format(width, height))
# Frame rate
den, num = self._get_attribute_size(uncompressed_mt, MF_MT_FRAME_RATE)
self.video_format.frame_rate = num / den
assert _debug('WMFVideoDecoder: Frame Rate: {} / {} = {}'.format(num, den, self.video_format.frame_rate))
# Sometimes it can return negative? Variable bit rate? Needs further tests and examples.
if self.video_format.frame_rate < 0:
self.video_format.frame_rate = 30000 / 1001
assert _debug('WARNING: Negative frame rate, attempting to use default, but may experience issues.')
# Pixel ratio
den, num = self._get_attribute_size(uncompressed_mt, MF_MT_PIXEL_ASPECT_RATIO)
self.video_format.sample_aspect = num / den
assert _debug('WMFVideoDecoder: Pixel Ratio: {} / {} = {}'.format(num, den, self.video_format.sample_aspect))
def get_audio_data(self, num_bytes, compensation_time=0.0):
flags = DWORD()
timestamp = ctypes.c_longlong()
imf_sample = IMFSample()
imf_buffer = IMFMediaBuffer()
while True:
self._source_reader.ReadSample(self._audio_stream_index, 0, None, ctypes.byref(flags),
ctypes.byref(timestamp), ctypes.byref(imf_sample))
if flags.value & MF_SOURCE_READERF_CURRENTMEDIATYPECHANGED:
assert _debug('WMFAudioDecoder: Data is no longer valid.')
break
if flags.value & MF_SOURCE_READERF_ENDOFSTREAM:
assert _debug('WMFAudioDecoder: End of data from stream source.')
break
if not imf_sample:
assert _debug('WMFAudioDecoder: No sample.')
continue
# Convert to single buffer as a sample could potentially(rarely) have multiple buffers.
imf_sample.ConvertToContiguousBuffer(ctypes.byref(imf_buffer))
audio_data_ptr = POINTER(BYTE)()
audio_data_length = DWORD()
imf_buffer.Lock(ctypes.byref(audio_data_ptr), None, ctypes.byref(audio_data_length))
audio_data = ctypes.string_at(audio_data_ptr, audio_data_length.value)
imf_buffer.Unlock()
imf_buffer.Release()
imf_sample.Release()
return AudioData(audio_data,
audio_data_length.value,
timestamp_from_wmf(timestamp.value),
audio_data_length.value / self.audio_format.sample_rate,
[])
return None
def get_next_video_frame(self, skip_empty_frame=True):
video_data_length = DWORD()
flags = DWORD()
timestamp = ctypes.c_longlong()
if self._current_video_sample:
self._current_video_buffer.Release()
self._current_video_sample.Release()
self._current_video_sample = IMFSample()
self._current_video_buffer = IMFMediaBuffer()
while True:
self._source_reader.ReadSample(self._video_stream_index, 0, None, ctypes.byref(flags),
ctypes.byref(timestamp), ctypes.byref(self._current_video_sample))
if flags.value & MF_SOURCE_READERF_CURRENTMEDIATYPECHANGED:
assert _debug('WMFVideoDecoder: Data is no longer valid.')
# Get Major media type (Audio, Video, etc)
new = IMFMediaType()
self._source_reader.GetCurrentMediaType(self._video_stream_index, ctypes.byref(new))
# Sometimes this happens once. I think this only
# changes if the stride is added/changed before playback?
stride = ctypes.c_uint32()
new.GetUINT32(MF_MT_DEFAULT_STRIDE, ctypes.byref(stride))
new.Release()
self._stride = stride.value
if flags.value & MF_SOURCE_READERF_ENDOFSTREAM:
self._timestamp = None
assert _debug('WMFVideoDecoder: End of data from stream source.')
break
if not self._current_video_sample:
assert _debug('WMFVideoDecoder: No sample.')
continue
self._current_video_buffer = IMFMediaBuffer()
# Convert to single buffer as a sample could potentially have multiple buffers.
self._current_video_sample.ConvertToContiguousBuffer(ctypes.byref(self._current_video_buffer))
video_data = POINTER(BYTE)()
self._current_video_buffer.Lock(ctypes.byref(video_data), None, ctypes.byref(video_data_length))
width = self.video_format.width
height = self.video_format.height
# buffer = ctypes.create_string_buffer(size)
self._timestamp = timestamp_from_wmf(timestamp.value)
self._current_video_buffer.Unlock()
# This is made with the assumption that the video frame will be blitted into the player texture immediately
# after, and then cleared next frame attempt.
return image.ImageData(width, height, 'BGRA', video_data, self._stride)
return None
def get_next_video_timestamp(self):
return self._timestamp
def seek(self, timestamp):
timestamp = min(timestamp, self._duration) if self._duration else timestamp
prop = PROPVARIANT()
prop.vt = VT_I8
prop.llVal = timestamp_to_wmf(timestamp)
pos_com = com.GUID(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
try:
self._source_reader.SetCurrentPosition(pos_com, prop)
except OSError as err:
warnings.warn(str(err))
ole32.PropVariantClear(ctypes.byref(prop))
@staticmethod
def _get_attribute_size(attributes, guidKey):
""" Convert int64 attributes to int32""" # HI32/LOW32
size = ctypes.c_uint64()
attributes.GetUINT64(guidKey, size)
lParam = size.value
x = ctypes.c_int32(lParam).value
y = ctypes.c_int32(lParam >> 32).value
return x, y
def set_config_attributes(self):
""" Here we set user specified attributes, by default we try to set low latency mode. (Win7+)"""
if self.low_latency or self.decode_video:
self._attributes = IMFAttributes()
MFCreateAttributes(ctypes.byref(self._attributes), 3)
if self.low_latency and WINDOWS_7_OR_GREATER:
self._attributes.SetUINT32(ctypes.byref(MF_LOW_LATENCY), 1)
assert _debug('WMFAudioDecoder: Setting configuration attributes.')
# If it's a video we need to enable the streams to be accessed.
if self.decode_video:
self._attributes.SetUINT32(ctypes.byref(MF_READWRITE_ENABLE_HARDWARE_TRANSFORMS), 1)
self._attributes.SetUINT32(ctypes.byref(MF_SOURCE_READER_ENABLE_VIDEO_PROCESSING), 1)
assert _debug('WMFVideoDecoder: Setting configuration attributes.')
def __del__(self):
if self._source_reader:
self._source_reader.Release()
if self._stream_obj:
self._stream_obj.Release()
if self._imf_bytestream:
self._imf_bytestream.Release()
if self._current_video_sample:
self._current_video_buffer.Release()
self._current_video_sample.Release()
#########################################
# Decoder class:
#########################################
class WMFDecoder(MediaDecoder):
def __init__(self):
self.MFShutdown = None
try:
MFStartup(MF_VERSION, 0)
except OSError as err:
raise ImportError('WMF could not startup:', err.strerror)
self.extensions = self._build_decoder_extensions()
self.MFShutdown = MFShutdown
assert _debug('Windows Media Foundation: Initialized.')
@staticmethod
def _build_decoder_extensions():
"""Extension support varies depending on OS version."""
extensions = []
if WINDOWS_VISTA_OR_GREATER:
extensions.extend(['.asf', '.wma', '.wmv',
'.mp3',
'.sami', '.smi',
])
if WINDOWS_7_OR_GREATER:
extensions.extend(['.3g2', '.3gp', '.3gp2', '.3gp',
'.aac', '.adts',
'.avi',
'.m4a', '.m4v',
# '.wav' # Can do wav, but we have a WAVE decoder.
])
if WINDOWS_10_ANNIVERSARY_UPDATE_OR_GREATER:
extensions.extend(['.flac'])
return extensions
def get_file_extensions(self):
return self.extensions
def decode(self, filename, file, streaming=True):
if streaming:
return WMFSource(filename, file)
else:
return StaticSource(WMFSource(filename, file))
def __del__(self):
if self.MFShutdown is not None:
self.MFShutdown()
def get_decoders():
return [WMFDecoder()]
def get_encoders():
return []