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mpv/loader/dshow/allocator.c
voroshil e33a1695ba Fixed loading of VoxWare and wma9sp binary audio codecs using dshow engine.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@22322 b3059339-0415-0410-9bf9-f77b7e298cf2
2007-02-23 08:07:07 +00:00

363 lines
9.1 KiB
C

/*
* Modified for use with MPlayer, detailed changelog at
* http://svn.mplayerhq.hu/mplayer/trunk/
* $Id$
*/
#include "config.h"
#include "allocator.h"
#include "com.h"
#include "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 = (avm_list_t*) 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;
}
static long MemAllocator_CreateAllocator(GUID* clsid, const GUID* iid, void** ppv)
{
IMemAllocator* p;
int result;
if (!ppv)
return -1;
*ppv = 0;
if (memcmp(clsid, &CLSID_MemoryAllocator, sizeof(GUID)))
return -1;
p = (IMemAllocator*) MemAllocatorCreate();
result = p->vt->QueryInterface((IUnknown*)p, iid, ppv);
p->vt->Release((IUnknown*)p);
return result;
}
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 = (MemAllocator*) 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 = (IMemAllocator_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;
}