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mirror of https://github.com/mpv-player/mpv synced 2024-12-14 10:55:43 +00:00
mpv/loader/dshow/cmediasample.c
alex 11df85a3dd CoTaskMemAlloc/Free vs malloc/free cleanup
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9965 b3059339-0415-0410-9bf9-f77b7e298cf2
2003-04-21 20:12:43 +00:00

325 lines
9.8 KiB
C

#include "cmediasample.h"
#include "wine/winerror.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
/*
* currently hack to make some extra room for DS Acel codec which
* seems to overwrite allocated memory - FIXME better later
* check the buffer allocation
*/
static const int SAFETY_ACEL = 1024;
static long STDCALL CMediaSample_QueryInterface(IUnknown* This,
/* [in] */ const GUID* iid,
/* [iid_is][out] */ void **ppv)
{
Debug printf("CMediaSample_QueryInterface(%p) called\n", This);
if (!ppv)
return E_INVALIDARG;
if (memcmp(iid, &IID_IUnknown, sizeof(*iid)) == 0)
{
*ppv = (void*)This;
((IMediaSample*) This)->vt->AddRef(This);
return 0;
}
if (memcmp(iid, &IID_IMediaSample, sizeof(*iid)) == 0)
{
*ppv = (void*)This;
((IMediaSample*) This)->vt->AddRef(This);
return 0;
}
return E_NOINTERFACE;
}
static long STDCALL CMediaSample_AddRef(IUnknown* This)
{
Debug printf("CMediaSample_AddRef(%p) called\n", This);
((CMediaSample*)This)->refcount++;
return 0;
}
void CMediaSample_Destroy(CMediaSample* This)
{
Debug printf("CMediaSample_Destroy(%p) called (ref:%d)\n", This, This->refcount);
free(This->vt);
free(This->own_block);
if (This->media_type.pbFormat)
free(This->media_type.pbFormat);
free(This);
}
static long STDCALL CMediaSample_Release(IUnknown* This)
{
CMediaSample* parent = (CMediaSample*)This;
Debug printf("CMediaSample_Release(%p) called (new ref:%d)\n",
This, ((CMediaSample*)This)->refcount-1);
if (--((CMediaSample*) This)->refcount == 0)
{
parent->all->vt->ReleaseBuffer((IMemAllocator*)(parent->all),
(IMediaSample*)This);
}
return 0;
}
static HRESULT STDCALL CMediaSample_GetPointer(IMediaSample* This,
/* [out] */ BYTE** ppBuffer)
{
Debug printf("CMediaSample_GetPointer(%p) called -> %p, size: %d %d\n", This, ((CMediaSample*) This)->block, ((CMediaSample*)This)->actual_size, ((CMediaSample*)This)->size);
if (!ppBuffer)
return E_INVALIDARG;
*ppBuffer = (BYTE*) ((CMediaSample*) This)->block;
return 0;
}
static long STDCALL CMediaSample_GetSize(IMediaSample * This)
{
Debug printf("CMediaSample_GetSize(%p) called -> %d\n", This, ((CMediaSample*) This)->size);
return ((CMediaSample*) This)->size;
}
static HRESULT STDCALL CMediaSample_GetTime(IMediaSample * This,
/* [out] */ REFERENCE_TIME *pTimeStart,
/* [out] */ REFERENCE_TIME *pTimeEnd)
{
Debug printf("CMediaSample_GetTime(%p) called (UNIMPLEMENTED)\n", This);
return E_NOTIMPL;
}
static HRESULT STDCALL CMediaSample_SetTime(IMediaSample * This,
/* [in] */ REFERENCE_TIME *pTimeStart,
/* [in] */ REFERENCE_TIME *pTimeEnd)
{
Debug printf("CMediaSample_SetTime(%p) called (UNIMPLEMENTED)\n", This);
return E_NOTIMPL;
}
static HRESULT STDCALL CMediaSample_IsSyncPoint(IMediaSample * This)
{
Debug printf("CMediaSample_IsSyncPoint(%p) called\n", This);
if (((CMediaSample*)This)->isSyncPoint)
return 0;
return 1;
}
static HRESULT STDCALL CMediaSample_SetSyncPoint(IMediaSample * This,
long bIsSyncPoint)
{
Debug printf("CMediaSample_SetSyncPoint(%p) called\n", This);
((CMediaSample*)This)->isSyncPoint = bIsSyncPoint;
return 0;
}
static HRESULT STDCALL CMediaSample_IsPreroll(IMediaSample * This)
{
Debug printf("CMediaSample_IsPreroll(%p) called\n", This);
if (((CMediaSample*)This)->isPreroll)
return 0;//S_OK
return 1;//S_FALSE
}
static HRESULT STDCALL CMediaSample_SetPreroll(IMediaSample * This,
long bIsPreroll)
{
Debug printf("CMediaSample_SetPreroll(%p) called\n", This);
((CMediaSample*)This)->isPreroll=bIsPreroll;
return 0;
}
static long STDCALL CMediaSample_GetActualDataLength(IMediaSample* This)
{
Debug printf("CMediaSample_GetActualDataLength(%p) called -> %d\n", This, ((CMediaSample*)This)->actual_size);
return ((CMediaSample*)This)->actual_size;
}
static HRESULT STDCALL CMediaSample_SetActualDataLength(IMediaSample* This,
long __MIDL_0010)
{
CMediaSample* cms = (CMediaSample*)This;
Debug printf("CMediaSample_SetActualDataLength(%p, %ld) called\n", This, __MIDL_0010);
if (__MIDL_0010 > cms->size)
{
char* c = cms->own_block;
Debug printf("CMediaSample - buffer overflow %ld %d %p %p\n",
__MIDL_0010, ((CMediaSample*)This)->size, cms->own_block, cms->block);
cms->own_block = (char*) realloc(cms->own_block, (size_t) __MIDL_0010 + SAFETY_ACEL);
if (c == cms->block)
cms->block = cms->own_block;
cms->size = __MIDL_0010;
}
cms->actual_size = __MIDL_0010;
return 0;
}
static HRESULT STDCALL CMediaSample_GetMediaType(IMediaSample* This,
AM_MEDIA_TYPE** ppMediaType)
{
AM_MEDIA_TYPE* t;
Debug printf("CMediaSample_GetMediaType(%p) called\n", This);
if(!ppMediaType)
return E_INVALIDARG;
if(!((CMediaSample*)This)->type_valid)
{
*ppMediaType=0;
return 1;
}
t = &((CMediaSample*)This)->media_type;
// if(t.pbFormat)free(t.pbFormat);
(*ppMediaType) = (AM_MEDIA_TYPE*)malloc(sizeof(AM_MEDIA_TYPE));
**ppMediaType = *t;
(*ppMediaType)->pbFormat = (char*)malloc(t->cbFormat);
memcpy((*ppMediaType)->pbFormat, t->pbFormat, t->cbFormat);
// *ppMediaType=0; //media type was not changed
return 0;
}
static HRESULT STDCALL CMediaSample_SetMediaType(IMediaSample * This,
AM_MEDIA_TYPE *pMediaType)
{
AM_MEDIA_TYPE* t;
Debug printf("CMediaSample_SetMediaType(%p) called\n", This);
if (!pMediaType)
return E_INVALIDARG;
t = &((CMediaSample*)This)->media_type;
if (t->pbFormat)
free(t->pbFormat);
t = pMediaType;
if (t->cbFormat)
{
t->pbFormat = (char*)malloc(t->cbFormat);
memcpy(t->pbFormat, pMediaType->pbFormat, t->cbFormat);
}
else
t->pbFormat = 0;
((CMediaSample*) This)->type_valid=1;
return 0;
}
static HRESULT STDCALL CMediaSample_IsDiscontinuity(IMediaSample * This)
{
Debug printf("CMediaSample_IsDiscontinuity(%p) called\n", This);
return ((CMediaSample*) This)->isDiscontinuity;
}
static HRESULT STDCALL CMediaSample_SetDiscontinuity(IMediaSample * This,
long bDiscontinuity)
{
Debug printf("CMediaSample_SetDiscontinuity(%p) called (%ld)\n", This, bDiscontinuity);
((CMediaSample*) This)->isDiscontinuity = bDiscontinuity;
return 0;
}
static HRESULT STDCALL CMediaSample_GetMediaTime(IMediaSample * This,
/* [out] */ LONGLONG *pTimeStart,
/* [out] */ LONGLONG *pTimeEnd)
{
Debug printf("CMediaSample_GetMediaTime(%p) called\n", This);
if (pTimeStart)
*pTimeStart = ((CMediaSample*) This)->time_start;
if (pTimeEnd)
*pTimeEnd = ((CMediaSample*) This)->time_end;
return 0;
}
static HRESULT STDCALL CMediaSample_SetMediaTime(IMediaSample * This,
/* [in] */ LONGLONG *pTimeStart,
/* [in] */ LONGLONG *pTimeEnd)
{
Debug printf("CMediaSample_SetMediaTime(%p) called\n", This);
if (pTimeStart)
((CMediaSample*) This)->time_start = *pTimeStart;
if (pTimeEnd)
((CMediaSample*) This)->time_end = *pTimeEnd;
return 0;
}
// extension for direct memory write or decompressed data
static void CMediaSample_SetPointer(CMediaSample* This, char* pointer)
{
Debug printf("CMediaSample_SetPointer(%p) called -> %p\n", This, pointer);
if (pointer)
This->block = pointer;
else
This->block = This->own_block;
}
static void CMediaSample_ResetPointer(CMediaSample* This)
{
Debug printf("CMediaSample_ResetPointer(%p) called\n", This);
This->block = This->own_block;
}
CMediaSample* CMediaSampleCreate(IMemAllocator* allocator, int _size)
{
CMediaSample* This = (CMediaSample*) malloc(sizeof(CMediaSample));
if (!This)
return NULL;
// some hack here!
// it looks like Acelp decoder is actually accessing
// the allocated memory before it sets the new size for it ???
// -- maybe it's being initialized with wrong parameters
// anyway this is fixes the problem somehow with some reserves
//
// using different trick for now - in DS_Audio modify sample size
//if (_size < 0x1000)
// _size = (_size + 0xfff) & ~0xfff;
This->vt = (IMediaSample_vt*) malloc(sizeof(IMediaSample_vt));
This->own_block = (char*) malloc((size_t)_size + SAFETY_ACEL);
This->media_type.pbFormat = 0;
if (!This->vt || !This->own_block)
{
CMediaSample_Destroy(This);
return NULL;
}
This->vt->QueryInterface = CMediaSample_QueryInterface;
This->vt->AddRef = CMediaSample_AddRef;
This->vt->Release = CMediaSample_Release;
This->vt->GetPointer = CMediaSample_GetPointer;
This->vt->GetSize = CMediaSample_GetSize;
This->vt->GetTime = CMediaSample_GetTime;
This->vt->SetTime = CMediaSample_SetTime;
This->vt->IsSyncPoint = CMediaSample_IsSyncPoint;
This->vt->SetSyncPoint = CMediaSample_SetSyncPoint;
This->vt->IsPreroll = CMediaSample_IsPreroll;
This->vt->SetPreroll = CMediaSample_SetPreroll;
This->vt->GetActualDataLength = CMediaSample_GetActualDataLength;
This->vt->SetActualDataLength = CMediaSample_SetActualDataLength;
This->vt->GetMediaType = CMediaSample_GetMediaType;
This->vt->SetMediaType = CMediaSample_SetMediaType;
This->vt->IsDiscontinuity = CMediaSample_IsDiscontinuity;
This->vt->SetDiscontinuity = CMediaSample_SetDiscontinuity;
This->vt->GetMediaTime = CMediaSample_GetMediaTime;
This->vt->SetMediaTime = CMediaSample_SetMediaTime;
This->all = allocator;
This->size = _size;
This->refcount = 0; // increased by MemAllocator
This->actual_size = 0;
This->isPreroll = 0;
This->isDiscontinuity = 1;
This->time_start = 0;
This->time_end = 0;
This->type_valid = 0;
This->block = This->own_block;
This->SetPointer = CMediaSample_SetPointer;
This->ResetPointer = CMediaSample_ResetPointer;
Debug printf("CMediaSample_Create(%p) called - sample size %d, buffer %p\n",
This, This->size, This->block);
return This;
}