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authorwm4 <wm4@nowhere>2012-08-12 15:30:21 +0200
committerwm4 <wm4@nowhere>2012-08-16 17:16:33 +0200
commitaebfbbf2bdda8e18beef90c16da97bd335f7d3b0 (patch)
treea7362bf3ef6f2d80a47b2e539a2ea4efe5e2e079 /loader/wineacm.h
parentc6b03ffef6250096373c4a81a489dae9fbff9087 (diff)
downloadmpv-aebfbbf2bdda8e18beef90c16da97bd335f7d3b0.tar.bz2
mpv-aebfbbf2bdda8e18beef90c16da97bd335f7d3b0.tar.xz
Remove win32/qt/xanim/real binary codecs loading
Remove the win32 loader - the win32 emulation layer, as well as the code for using DirectShow/DMO/VFW codecs. Remove loading of xanim, QuickTime, and RealMedia codecs. The win32 emulation layer is based on a very old version of wine. Apparently, wine code was copied and hacked until it was somehow able to load a limited collection of binary codecs. It poked around in the code segment of some known binary codecs to disable unsupported win32 API calls to make them work. Example from module.c: for (i=0;i<5;i++) RVA(0x19e842)[i]=0x90; // make_new_region ? for (i=0;i<28;i++) RVA(0x19e86d)[i]=0x90; // call__call_CreateCompatibleDC ? for (i=0;i<5;i++) RVA(0x19e898)[i]=0x90; // jmp_to_call_loadbitmap ? for (i=0;i<9;i++) RVA(0x19e8ac)[i]=0x90; // call__calls_OLE_shit ? for (i=0;i<106;i++) RVA(0x261b10)[i]=0x90; // disable threads Just to show how utterly insane this code is. You wouldn't want even your worst enemy to have to maintain this. In fact, it seems nobody made major changes to this code ever since it was committed. Most formats can be decoded by libavcodecs these days, and the loader couldn't be used on 64 bit platforms anyway. The same is (probably) true for the other binary codecs. General note about how support for win32 codecs could be added back: It's not possible to replace the win32 loader code by using wine as library, because modern wine can not be linked with native Linux programs for certain reasons. It would be possible to to move DirectShow video decoding into a separate process linked with wine, like the CoreAVC-for-Linux patches do. There is also the mplayer-ww fork, which uses the dshownative library to use DirectShow codecs on Windows.
Diffstat (limited to 'loader/wineacm.h')
-rw-r--r--loader/wineacm.h62
1 files changed, 0 insertions, 62 deletions
diff --git a/loader/wineacm.h b/loader/wineacm.h
deleted file mode 100644
index eb23146dea..0000000000
--- a/loader/wineacm.h
+++ /dev/null
@@ -1,62 +0,0 @@
-#ifndef MPLAYER_WINEACM_H
-#define MPLAYER_WINEACM_H
-
-/***********************************************************************
- * Wine specific - Win32
- */
-
-
-#include "wine/msacmdrv.h"
-
-typedef struct WINE_ACMDRIVERID *PWINE_ACMDRIVERID;
-typedef struct WINE_ACMDRIVER *PWINE_ACMDRIVER;
-
-typedef struct WINE_ACMOBJ
-{
- PWINE_ACMDRIVERID pACMDriverID;
-} WINE_ACMOBJ, *PWINE_ACMOBJ;
-
-typedef struct WINE_ACMDRIVER
-{
- WINE_ACMOBJ obj;
- HDRVR hDrvr;
- DRIVERPROC pfnDriverProc;
- PWINE_ACMDRIVER pNextACMDriver;
- int iUsage;
-} WINE_ACMDRIVER;
-
-typedef struct WINE_ACMSTREAM
-{
- WINE_ACMOBJ obj;
- PWINE_ACMDRIVER pDrv;
- ACMDRVSTREAMINSTANCE drvInst;
- HACMDRIVER hAcmDriver;
-} WINE_ACMSTREAM, *PWINE_ACMSTREAM;
-
-typedef struct WINE_ACMDRIVERID
-{
- LPSTR pszFileName;
- WORD wFormatTag;
- HINSTANCE hInstModule; /* NULL if global */
- DWORD dwProcessID; /* ID of process which installed a local driver */
- WIN_BOOL bEnabled;
- PWINE_ACMDRIVER pACMDriverList;
- PWINE_ACMDRIVERID pNextACMDriverID;
- PWINE_ACMDRIVERID pPrevACMDriverID;
-} WINE_ACMDRIVERID;
-
-/* From internal.c */
-extern HANDLE MSACM_hHeap;
-extern PWINE_ACMDRIVERID MSACM_pFirstACMDriverID;
-extern PWINE_ACMDRIVERID MSACM_pLastACMDriverID;
-
-PWINE_ACMDRIVERID MSACM_RegisterDriver(const char* pszFileName,
- WORD wFormatTag,
- HINSTANCE hinstModule);
-PWINE_ACMDRIVERID MSACM_UnregisterDriver(PWINE_ACMDRIVERID p);
-void MSACM_UnregisterAllDrivers(void);
-PWINE_ACMDRIVERID MSACM_GetDriverID(HACMDRIVERID hDriverID);
-PWINE_ACMDRIVER MSACM_GetDriver(HACMDRIVER hDriver);
-PWINE_ACMOBJ MSACM_GetObj(HACMOBJ hObj);
-
-#endif /* MPLAYER_WINEACM_H */