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.

1 files changed, 0 insertions, 363 deletions

diff --git a/loader/dshow/allocator.c b/loader/dshow/allocator.c
deleted file mode 100644
index 744debf968..0000000000
--- a/loader/dshow/allocator.c
+++ /dev/null
@@ -1,363 +0,0 @@
-/*
- * Modified for use with MPlayer, detailed changelog at
- * http://svn.mplayerhq.hu/mplayer/trunk/
- */
-
-#include "config.h"
-#include "allocator.h"
-#include "loader/com.h"
-#include "loader/wine/winerror.h"
-#include <stdio.h>
-#include <stdlib.h>
-
-static int AllocatorKeeper = 0;
-
-struct avm_list_t
-{
-    struct avm_list_t* next;
-    struct avm_list_t* prev;
-    void* member;
-};
-
-static inline int avm_list_size(avm_list_t* head)
-{
-    avm_list_t* it = head;
-    int i = 0;
-    if (it)
-    {
-	for (;;)
-	{
-            i++;
-	    it = it->next;
-	    if (it == head)
-                break;
-	}
-    }
-    return i;
-}
-
-static inline int avm_list_print(avm_list_t* head)
-{
-    avm_list_t* it = head;
-    int i = 0;
-    printf("Head: %p\n", head);
-    if (it)
-    {
-	for (;;)
-	{
-	    i++;
-	    printf("%d:  member: %p    next: %p  prev: %p\n",
-		   i, it->member, it->next, it->prev);
-	    it = it->next;
-	    if (it == head)
-                break;
-	}
-    }
-    return i;
-}
-
-static inline avm_list_t* avm_list_add_head(avm_list_t* head, void* member)
-{
-    avm_list_t* n = malloc(sizeof(avm_list_t));
-    n->member = member;
-
-    if (!head)
-    {
-	head = n;
-        head->prev = head;
-    }
-
-    n->prev = head->prev;
-    head->prev = n;
-    n->next = head;
-
-    return n;
-}
-
-static inline avm_list_t* avm_list_add_tail(avm_list_t* head, void* member)
-{
-    avm_list_t* n = avm_list_add_head(head, member);
-    return (!head) ? n : head;
-}
-
-static inline avm_list_t* avm_list_del_head(avm_list_t* head)
-{
-    avm_list_t* n = 0;
-
-    if (head)
-    {
-	if (head->next != head)
-	{
-	    n = head->next;
-	    head->prev->next = head->next;
-	    head->next->prev = head->prev;
-	}
-	free(head);
-    }
-    return n;
-}
-
-static inline avm_list_t* avm_list_find(avm_list_t* head, void* member)
-{
-    avm_list_t* it = head;
-    if (it)
-    {
-	for (;;)
-	{
-	    if (it->member == member)
-		return it;
-	    it = it->next;
-	    if (it == head)
-                break;
-	}
-    }
-    return NULL;
-}
-
-#ifdef WIN32_LOADER
-static long MemAllocator_CreateAllocator(GUID* clsid, const GUID* iid, void** ppv)
-{
-    IUnknown* p;
-    int result;
-    if (!ppv)
-	return -1;
-    *ppv = 0;
-    if (memcmp(clsid, &CLSID_MemoryAllocator, sizeof(GUID)))
-	return -1;
-
-    p = (IUnknown*) MemAllocatorCreate();
-    result = p->vt->QueryInterface(p, iid, ppv);
-    p->vt->Release(p);
-
-    return result;
-}
-#endif
-
-static HRESULT STDCALL MemAllocator_SetProperties(IMemAllocator * This,
-						  /* [in] */ ALLOCATOR_PROPERTIES *pRequest,
-						  /* [out] */ ALLOCATOR_PROPERTIES *pActual)
-{
-    MemAllocator* me = (MemAllocator*)This;
-    Debug printf("MemAllocator_SetProperties(%p) called\n", This);
-    if (!pRequest || !pActual)
-	return E_INVALIDARG;
-    if (pRequest->cBuffers<=0 || pRequest->cbBuffer<=0)
-	return E_FAIL;
-    if (me->used_list != 0 || me->free_list != 0)
-	return E_FAIL;
-
-    *pActual = *pRequest;
-    /*
-       DirectShow DOCS ("Negotiating Allocators" chapter) says that allocator might not
-       honor the requested properties. Thus, since WMSP audio codecs requests bufer with two
-       bytes length for unknown reason, we should correct requested value. Otherwise above
-       codec don't want to load.
-    */
-    if (pActual->cbBuffer == 2)
-        pActual->cbBuffer = 10240; //Enough for WMSP codec
-
-    me->props = *pActual;
-
-    return 0;
-}
-
-static HRESULT STDCALL MemAllocator_GetProperties(IMemAllocator * This,
-						  /* [out] */ ALLOCATOR_PROPERTIES *pProps)
-{
-    Debug printf("MemAllocator_GetProperties(%p) called\n", This);
-    if (!pProps)
-	return E_INVALIDARG;
-    if (((MemAllocator*)This)->props.cbBuffer<0)
-	return E_FAIL;
-    *pProps=((MemAllocator*)This)->props;
-
-    return 0;
-}
-
-static HRESULT STDCALL MemAllocator_Commit(IMemAllocator * This)
-{
-    MemAllocator* me = (MemAllocator*)This;
-    int i;
-    Debug printf("MemAllocator_Commit(%p) called\n", This);
-    if (((MemAllocator*)This)->props.cbBuffer < 0)
-	return E_FAIL;
-    if (me->used_list || me->free_list)
-	return E_INVALIDARG;
-    for (i = 0; i < me->props.cBuffers; i++)
-    {
-	CMediaSample* sample = CMediaSampleCreate((IMemAllocator*)me,
-						  me->props.cbBuffer);
-	if (!sample)
-            return E_OUTOFMEMORY;
-	//printf("FREEEEEEEEEEEE ADDED %p\n", sample);
-	me->free_list = avm_list_add_tail(me->free_list, sample);
-	//avm_list_print(me->free_list);
-    }
-
-    //printf("Added mem %p: lsz: %d  %d  size: %d\n", me, avm_list_size(me->free_list), me->props.cBuffers, me->props.cbBuffer);
-    return 0;
-}
-
-static HRESULT STDCALL MemAllocator_Decommit(IMemAllocator * This)
-{
-    MemAllocator* me=(MemAllocator*)This;
-    Debug printf("MemAllocator_Decommit(%p) called\n", This);
-    //printf("Deleted mem %p: %d  %d\n", me, me->free_list.size(), me->used_list.size());
-    while (me->used_list)
-    {
-	me->free_list = avm_list_add_tail(me->free_list,
-					  (CMediaSample*) me->used_list->member);
-	me->used_list = avm_list_del_head(me->used_list);
-    }
-
-    while (me->free_list)
-    {
-        CMediaSample* sample = (CMediaSample*) me->free_list->member;
-	//printf("****************** Decommiting FREE %p\n", sample);
-	//sample->vt->Release((IUnknown*)sample);
-	CMediaSample_Destroy((CMediaSample*)sample);
-	me->free_list = avm_list_del_head(me->free_list);
-    }
-
-    return 0;
-}
-
-static HRESULT STDCALL MemAllocator_GetBuffer(IMemAllocator * This,
-					      /* [out] */ IMediaSample **ppBuffer,
-					      /* [in] */ REFERENCE_TIME *pStartTime,
-					      /* [in] */ REFERENCE_TIME *pEndTime,
-					      /* [in] */ DWORD dwFlags)
-{
-    MemAllocator* me = (MemAllocator*)This;
-    CMediaSample* sample;
-    Debug printf("MemAllocator_ReleaseBuffer(%p) called   %d  %d\n", This,
-		 avm_list_size(me->used_list), avm_list_size(me->free_list));
-
-    if (!me->free_list)
-    {
-	Debug printf("No samples available\n");
-	return E_FAIL;//should block here if no samples are available
-    }
-
-    sample = (CMediaSample*) me->free_list->member;
-    me->free_list = avm_list_del_head(me->free_list);
-    me->used_list = avm_list_add_tail(me->used_list, sample);
-
-    *ppBuffer = (IMediaSample*) sample;
-    sample->vt->AddRef((IUnknown*) sample);
-    if (me->new_pointer)
-    {
-	if (me->modified_sample)
-	    me->modified_sample->ResetPointer(me->modified_sample);
-	sample->SetPointer(sample, me->new_pointer);
-	me->modified_sample = sample;
-	me->new_pointer = 0;
-    }
-    return 0;
-}
-
-static HRESULT STDCALL MemAllocator_ReleaseBuffer(IMemAllocator* This,
-						  /* [in] */ IMediaSample* pBuffer)
-{
-    avm_list_t* l;
-    MemAllocator* me = (MemAllocator*)This;
-    Debug printf("MemAllocator_ReleaseBuffer(%p) called   %d  %d\n", This,
-		 avm_list_size(me->used_list), avm_list_size(me->free_list));
-
-    l = avm_list_find(me->used_list, pBuffer);
-    if (l)
-    {
-	CMediaSample* sample = (CMediaSample*) l->member;
-	if (me->modified_sample == sample)
-	{
-	    me->modified_sample->ResetPointer(me->modified_sample);
-	    me->modified_sample = 0;
-	}
-	me->used_list = avm_list_del_head(me->used_list);
-	me->free_list = avm_list_add_head(me->free_list, sample);
-	//printf("****************** RELEASED OK %p  %p\n", me->used_list, me->free_list);
-	return 0;
-    }
-    Debug printf("MemAllocator_ReleaseBuffer(%p) releasing unknown buffer!!!! %p\n", This, pBuffer);
-    return E_FAIL;
-}
-
-
-static void MemAllocator_SetPointer(MemAllocator* This, char* pointer)
-{
-    This->new_pointer = pointer;
-}
-
-static void MemAllocator_ResetPointer(MemAllocator* This)
-{
-    if (This->modified_sample)
-    {
-	This->modified_sample->ResetPointer(This->modified_sample);
-	This->modified_sample = 0;
-    }
-}
-
-static void MemAllocator_Destroy(MemAllocator* This)
-{
-    Debug printf("MemAllocator_Destroy(%p) called  (%d, %d)\n", This, This->refcount, AllocatorKeeper);
-#ifdef WIN32_LOADER
-    if (--AllocatorKeeper == 0)
-	UnregisterComClass(&CLSID_MemoryAllocator, MemAllocator_CreateAllocator);
-#endif
-    free(This->vt);
-    free(This);
-}
-
-IMPLEMENT_IUNKNOWN(MemAllocator)
-
-MemAllocator* MemAllocatorCreate()
-{
-    MemAllocator* This = malloc(sizeof(MemAllocator));
-
-    if (!This)
-        return NULL;
-
-    Debug printf("MemAllocatorCreate() called -> %p\n", This);
-
-    This->refcount = 1;
-    This->props.cBuffers = 1;
-    This->props.cbBuffer = 65536; /* :/ */
-    This->props.cbAlign = 1;
-    This->props.cbPrefix = 0;
-
-    This->vt = malloc(sizeof(IMemAllocator_vt));
-
-    if (!This->vt)
-    {
-        free(This);
-	return NULL;
-    }
-
-    This->vt->QueryInterface = MemAllocator_QueryInterface;
-    This->vt->AddRef = MemAllocator_AddRef;
-    This->vt->Release = MemAllocator_Release;
-    This->vt->SetProperties = MemAllocator_SetProperties;
-    This->vt->GetProperties = MemAllocator_GetProperties;
-    This->vt->Commit = MemAllocator_Commit;
-    This->vt->Decommit = MemAllocator_Decommit;
-    This->vt->GetBuffer = MemAllocator_GetBuffer;
-    This->vt->ReleaseBuffer = MemAllocator_ReleaseBuffer;
-
-    This->SetPointer = MemAllocator_SetPointer;
-    This->ResetPointer = MemAllocator_ResetPointer;
-
-    This->modified_sample = 0;
-    This->new_pointer = 0;
-    This->used_list = 0;
-    This->free_list = 0;
-
-    This->interfaces[0]=IID_IUnknown;
-    This->interfaces[1]=IID_IMemAllocator;
-
-#ifdef WIN32_LOADER
-    if (AllocatorKeeper++ == 0)
-	RegisterComClass(&CLSID_MemoryAllocator, MemAllocator_CreateAllocator);
-#endif
-
-    return This;
-}