mirror of https://github.com/mpv-player/mpv
577 lines
17 KiB
C
577 lines
17 KiB
C
/*
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* Modified for use with MPlayer, detailed changelog at
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* http://svn.mplayerhq.hu/mplayer/trunk/
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*/
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#include "cmediasample.h"
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#include "mediatype.h"
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#include "wine/winerror.h"
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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/*
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* currently hack to make some extra room for DS Acel codec which
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* seems to overwrite allocated memory - FIXME better later
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* check the buffer allocation
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*/
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static const int SAFETY_ACEL = 1024;
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/**
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* \brief IPin::QueryInternalConnections (retries pin's internal connections)
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*
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* \param[in] This pointer to IPin interface
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* \param[out] apPin Array that receives pins, internally connected to this
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* \param[in,out] nPint Size of an array
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*
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* \return S_OK - success
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* \return S_FALSE - pin rejects media type
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* \return E_NOTIMPL - not implemented
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*
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*/
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static long STDCALL CMediaSample_QueryInterface(IUnknown* This,
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/* [in] */ const GUID* iid,
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/* [iid_is][out] */ void **ppv)
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{
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Debug printf("CMediaSample_QueryInterface(%p) called\n", This);
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if (!ppv)
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return E_INVALIDARG;
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if (memcmp(iid, &IID_IUnknown, sizeof(*iid)) == 0)
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{
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*ppv = (void*)This;
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((IMediaSample*) This)->vt->AddRef(This);
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return 0;
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}
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if (memcmp(iid, &IID_IMediaSample, sizeof(*iid)) == 0)
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{
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*ppv = (void*)This;
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((IMediaSample*) This)->vt->AddRef(This);
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return 0;
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}
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return E_NOINTERFACE;
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}
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/**
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* \brief IUnknown::AddRef (increases reference counter for interface)
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*
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* \param[in] This pointer to IUnknown class
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*
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* \return new value of reference counter
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*
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* \remarks
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* Return value should be used only for debug purposes
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*
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*/
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static long STDCALL CMediaSample_AddRef(IUnknown* This)
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{
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Debug printf("CMediaSample_AddRef(%p) called\n", This);
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((CMediaSample*)This)->refcount++;
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return 0;
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}
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/**
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* \brief CMediaSample destructor
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*
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* \param[in] This pointer to CMediaSample object
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*
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*/
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void CMediaSample_Destroy(CMediaSample* This)
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{
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Debug printf("CMediaSample_Destroy(%p) called (ref:%d)\n", This, This->refcount);
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free(This->vt);
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free(This->own_block);
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if(((CMediaSample*)This)->type_valid)
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FreeMediaType(&(This->media_type));
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free(This);
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}
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/**
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* \brief IUnknown::Release (desreases reference counter for interface)
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*
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* \param[in] This pointer to IUnknown class
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*
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* \return new value of reference counter
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*
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* \remarks
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* When reference counter reaches zero calls destructor
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* Return value should be used only for debug purposes
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*
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*/
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static long STDCALL CMediaSample_Release(IUnknown* This)
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{
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CMediaSample* parent = (CMediaSample*)This;
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Debug printf("CMediaSample_Release(%p) called (new ref:%d)\n",
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This, ((CMediaSample*)This)->refcount-1);
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if (--((CMediaSample*) This)->refcount == 0)
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{
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parent->all->vt->ReleaseBuffer((IMemAllocator*)(parent->all),
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(IMediaSample*)This);
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}
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return 0;
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}
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/**
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* \brief IMediaSample::GetPointer (retrieves a read/write pointer to the media sample's buffer)
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*
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* \param[in] This pointer to CMediaSample object
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* \param[out] address of variable that receives pointer to sample's buffer
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*
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* \return S_OK success
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* \return apropriate error otherwise
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*
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* \note The calles should not free or reallocate buffer
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*
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*/
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static HRESULT STDCALL CMediaSample_GetPointer(IMediaSample* This,
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/* [out] */ BYTE** ppBuffer)
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{
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Debug printf("CMediaSample_GetPointer(%p) called -> %p, size: %d %d\n", This, ((CMediaSample*) This)->block, ((CMediaSample*)This)->actual_size, ((CMediaSample*)This)->size);
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if (!ppBuffer)
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return E_INVALIDARG;
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*ppBuffer = (BYTE*) ((CMediaSample*) This)->block;
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return 0;
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}
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/**
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* \brief IMediaSample::GetSize (retrieves a size of buffer in bytes)
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*
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* \param[in] This pointer to CMediaSample object
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*
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* \return size of buffer in bytes
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*
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*/
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static long STDCALL CMediaSample_GetSize(IMediaSample * This)
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{
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Debug printf("CMediaSample_GetSize(%p) called -> %d\n", This, ((CMediaSample*) This)->size);
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return ((CMediaSample*) This)->size;
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}
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/**
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* \brief IMediaSample::GetTime (retrieves a stream time at wich sample sould start and finish)
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*
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* \param[in] This pointer to CMediaSample object
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* \param[out] pTimeStart pointer to variable that receives start time
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* \param[out] pTimeEnd pointer to variable that receives end time
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*
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* \return S_OK success
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* \return VFW_E_NO_STOP_TIME The sample has valid start time, but no stop time
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* \return VFW_E_SAMPLE_TIME_NOT_SET The sample is not time-stamped
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*
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* \remarks
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* Both values are relative to stream time
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*
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*/
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static HRESULT STDCALL CMediaSample_GetTime(IMediaSample * This,
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/* [out] */ REFERENCE_TIME *pTimeStart,
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/* [out] */ REFERENCE_TIME *pTimeEnd)
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{
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Debug printf("CMediaSample_GetTime(%p) called (UNIMPLEMENTED)\n", This);
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return E_NOTIMPL;
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}
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/**
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* \brief IMediaSample::SetTime (sets a stream time at wich sample sould start and finish)
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*
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* \param[in] This pointer to CMediaSample object
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* \param[out] pTimeStart pointer to variable that contains start time
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* \param[out] pTimeEnd pointer to variable that contains end time
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*
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* \return S_OK success
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* \return apropriate error otherwise
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*
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* \remarks
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* Both values are relative to stream time
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* To invalidate the stream times set pTimeStart and pTimeEnd to NULL. this will cause
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* IMEdiaSample::GetTime to return VFW_E_SAMPLE_TIME_NOT_SET
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*
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*/
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static HRESULT STDCALL CMediaSample_SetTime(IMediaSample * This,
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/* [in] */ REFERENCE_TIME *pTimeStart,
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/* [in] */ REFERENCE_TIME *pTimeEnd)
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{
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Debug printf("CMediaSample_SetTime(%p) called (UNIMPLEMENTED)\n", This);
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return E_NOTIMPL;
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}
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/**
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* \brief IMediaSample::IsSyncPoint (determines if start of this sample is sync point)
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*
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* \param[in] This pointer to CMediaSample object
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*
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* \return S_OK start of this sample is sync point
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* \return S_FALSE start of this sample is not sync point
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*
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* \remarks
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* If bTemporalCompression of AM_MEDIA_TYPE is FALSE, all samples are sync points.
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*
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*/
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static HRESULT STDCALL CMediaSample_IsSyncPoint(IMediaSample * This)
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{
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Debug printf("CMediaSample_IsSyncPoint(%p) called\n", This);
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if (((CMediaSample*)This)->isSyncPoint)
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return 0;
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return 1;
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}
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/**
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* \brief IMediaSample::SetSyncPoint (specifies if start of this sample is sync point)
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*
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* \param[in] This pointer to CMediaSample object
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* \param[in] bIsSyncPoint specifies whether this is sync point or not
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*
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* \return S_OK success
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* \return apropriate error code otherwise
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*
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*/
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static HRESULT STDCALL CMediaSample_SetSyncPoint(IMediaSample * This,
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long bIsSyncPoint)
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{
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Debug printf("CMediaSample_SetSyncPoint(%p) called\n", This);
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((CMediaSample*)This)->isSyncPoint = bIsSyncPoint;
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return 0;
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}
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/**
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* \brief IMediaSample::IsPreroll (determines if this sample is preroll sample)
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*
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* \param[in] This pointer to CMediaSample object
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*
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* \return S_OK if this sample is preroll sample
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* \return S_FALSE if this sample is not preroll sample
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*
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* \remarks
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* Preroll samples are processed but not displayed. They are lokated in media stream
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* before displayable samples.
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*
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*/
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static HRESULT STDCALL CMediaSample_IsPreroll(IMediaSample * This)
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{
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Debug printf("CMediaSample_IsPreroll(%p) called\n", This);
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if (((CMediaSample*)This)->isPreroll)
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return 0;//S_OK
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return 1;//S_FALSE
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}
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/**
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* \brief IMediaSample::SetPreroll (specifies if this sample is preroll sample)
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*
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* \param[in] This pointer to CMediaSample object
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* \param[in] bIsPreroll specifies whether this sample is preroll sample or not
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*
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* \return S_OK success
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* \return apropriate error code otherwise
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*
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* \remarks
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* Preroll samples are processed but not displayed. They are lokated in media stream
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* before displayable samples.
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*
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*/
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static HRESULT STDCALL CMediaSample_SetPreroll(IMediaSample * This,
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long bIsPreroll)
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{
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Debug printf("CMediaSample_SetPreroll(%p) called\n", This);
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((CMediaSample*)This)->isPreroll=bIsPreroll;
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return 0;
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}
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/**
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* \brief IMediaSample::GetActualDataLength (retrieves the length of valid data in the buffer)
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*
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* \param[in] This pointer to CMediaSample object
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*
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* \return length of valid data in buffer in bytes
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*
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*/
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static long STDCALL CMediaSample_GetActualDataLength(IMediaSample* This)
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{
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Debug printf("CMediaSample_GetActualDataLength(%p) called -> %d\n", This, ((CMediaSample*)This)->actual_size);
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return ((CMediaSample*)This)->actual_size;
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}
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/**
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* \brief IMediaSample::SetActualDataLength (specifies the length of valid data in the buffer)
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*
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* \param[in] This pointer to CMediaSample object
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* \param[in] __MIDL_0010 length of data in sample in bytes
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*
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* \return S_OK success
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* \return VFW_E_BUFFER_OVERFLOW length specified by parameter is larger than buffer size
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*
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*/
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static HRESULT STDCALL CMediaSample_SetActualDataLength(IMediaSample* This,
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long __MIDL_0010)
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{
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CMediaSample* cms = (CMediaSample*)This;
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Debug printf("CMediaSample_SetActualDataLength(%p, %ld) called\n", This, __MIDL_0010);
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if (__MIDL_0010 > cms->size)
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{
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char* c = cms->own_block;
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Debug printf("CMediaSample - buffer overflow %ld %d %p %p\n",
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__MIDL_0010, ((CMediaSample*)This)->size, cms->own_block, cms->block);
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cms->own_block = (char*) realloc(cms->own_block, (size_t) __MIDL_0010 + SAFETY_ACEL);
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if (c == cms->block)
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cms->block = cms->own_block;
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cms->size = __MIDL_0010;
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}
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cms->actual_size = __MIDL_0010;
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return 0;
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}
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/**
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* \brief IMediaSample::GetMediaType (retrieves media type, if it changed from previous sample)
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*
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* \param[in] This pointer to CMediaSample object
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* \param[out] ppMediaType address of variable that receives pointer to AM_MEDIA_TYPE.
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*
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* \return S_OK success
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* \return S_FALSE Media type was not changed from previous sample
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* \return E_OUTOFMEMORY Insufficient memory
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*
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* \remarks
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* If media type is not changed from previous sample, ppMediaType is null
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* If method returns S_OK caller should free memory allocated for structure
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* including pbFormat block
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*/
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static HRESULT STDCALL CMediaSample_GetMediaType(IMediaSample* This,
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AM_MEDIA_TYPE** ppMediaType)
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{
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AM_MEDIA_TYPE* t;
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Debug printf("CMediaSample_GetMediaType(%p) called\n", This);
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if(!ppMediaType)
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return E_INVALIDARG;
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if(!((CMediaSample*)This)->type_valid)
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{
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*ppMediaType=0;
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return 1;
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}
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t = &((CMediaSample*)This)->media_type;
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// if(t.pbFormat)free(t.pbFormat);
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*ppMediaType=CreateMediaType(t);
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// *ppMediaType=0; //media type was not changed
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return 0;
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}
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/**
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* \brief IMediaType::SetMediaType (specifies media type for sample)
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*
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* \param[in] This pointer to CMediaSample object
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* \param[in] pMediaType pointer to AM_MEDIA_TYPE specifies new media type
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*
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* \return S_OK success
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* \return E_OUTOFMEMORY insufficient memory
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*
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*/
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static HRESULT STDCALL CMediaSample_SetMediaType(IMediaSample * This,
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AM_MEDIA_TYPE *pMediaType)
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{
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AM_MEDIA_TYPE* t;
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Debug printf("CMediaSample_SetMediaType(%p) called\n", This);
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if (!pMediaType)
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return E_INVALIDARG;
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t = &((CMediaSample*)This)->media_type;
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if(((CMediaSample*)This)->type_valid)
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FreeMediaType(t);
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CopyMediaType(t,pMediaType);
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((CMediaSample*) This)->type_valid=1;
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return 0;
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}
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/**
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* \brief IMediaSample::IsDiscontinuity (determines if this sample represents data break
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* in stream)
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*
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* \param[in] This pointer to CMediaSample object
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*
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* \return S_OK if this sample is break in data stream
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* \return S_FALSE otherwise
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*
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* \remarks
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* Discontinuity occures when filter seeks to different place in the stream or when drops
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* samples.
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*
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*/
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static HRESULT STDCALL CMediaSample_IsDiscontinuity(IMediaSample * This)
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{
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Debug printf("CMediaSample_IsDiscontinuity(%p) called\n", This);
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return ((CMediaSample*) This)->isDiscontinuity;
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}
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/**
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* \brief IMediaSample::IsDiscontinuity (specifies whether this sample represents data break
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* in stream)
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*
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* \param[in] This pointer to CMediaSample object
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* \param[in] bDiscontinuity if TRUE this sample represents discontinuity with previous sample
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*
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* \return S_OK success
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* \return apropriate error code otherwise
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*
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*/
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static HRESULT STDCALL CMediaSample_SetDiscontinuity(IMediaSample * This,
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long bDiscontinuity)
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{
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Debug printf("CMediaSample_SetDiscontinuity(%p) called (%ld)\n", This, bDiscontinuity);
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((CMediaSample*) This)->isDiscontinuity = bDiscontinuity;
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return 0;
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}
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/**
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* \brief IMediaSample::GetMediaTime (retrieves the media times of this sample)
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*
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* \param[in] This pointer to CMediaSample object
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* \param[out] pTimeStart pointer to variable that receives start time
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* \param[out] pTimeEnd pointer to variable that receives end time
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*
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* \return S_OK success
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* \return VFW_E_MEDIA_TIME_NOT_SET The sample is not time-stamped
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*
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*/
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static HRESULT STDCALL CMediaSample_GetMediaTime(IMediaSample * This,
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/* [out] */ LONGLONG *pTimeStart,
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/* [out] */ LONGLONG *pTimeEnd)
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{
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Debug printf("CMediaSample_GetMediaTime(%p) called\n", This);
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if (pTimeStart)
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*pTimeStart = ((CMediaSample*) This)->time_start;
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if (pTimeEnd)
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*pTimeEnd = ((CMediaSample*) This)->time_end;
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return 0;
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}
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/**
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* \brief IMediaSample::GetMediaTime (retrieves the media times of this sample)
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*
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* \param[in] This pointer to CMediaSample object
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* \param[out] pTimeStart pointer to variable that specifies start time
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* \param[out] pTimeEnd pointer to variable that specifies end time
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*
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* \return S_OK success
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* \return apropriate error code otherwise
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*
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* \remarks
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* To invalidate the media times set pTimeStart and pTimeEnd to NULL. this will cause
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* IMEdiaSample::GetTime to return VFW_E_MEDIA_TIME_NOT_SET
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*/
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static HRESULT STDCALL CMediaSample_SetMediaTime(IMediaSample * This,
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/* [in] */ LONGLONG *pTimeStart,
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/* [in] */ LONGLONG *pTimeEnd)
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{
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Debug printf("CMediaSample_SetMediaTime(%p) called\n", This);
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if (pTimeStart)
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((CMediaSample*) This)->time_start = *pTimeStart;
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if (pTimeEnd)
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((CMediaSample*) This)->time_end = *pTimeEnd;
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return 0;
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}
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/**
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* \brief CMediaSample::SetPointer (extension for direct memory write of decompressed data)
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*
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* \param[in] This pointer to CMediaSample object
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* \param[in] pointer pointer to an external buffer to store data to
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*
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*/
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static void CMediaSample_SetPointer(CMediaSample* This, char* pointer)
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{
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Debug printf("CMediaSample_SetPointer(%p) called -> %p\n", This, pointer);
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if (pointer)
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This->block = pointer;
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else
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This->block = This->own_block;
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}
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/**
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* \brief CMediaSample::SetPointer (resets pointer to external buffer with internal one)
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*
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* \param[in] This pointer to CMediaSample object
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*
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*/
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static void CMediaSample_ResetPointer(CMediaSample* This)
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{
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Debug printf("CMediaSample_ResetPointer(%p) called\n", This);
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This->block = This->own_block;
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}
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/**
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* \brief CMediaSample constructor
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*
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* \param[in] allocator IMemallocator interface of allocator to use
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* \param[in] size size of internal buffer
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*
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* \return pointer to CMediaSample object of NULL if error occured
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*
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*/
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CMediaSample* CMediaSampleCreate(IMemAllocator* allocator, int size)
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{
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CMediaSample* This = (CMediaSample*) malloc(sizeof(CMediaSample));
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if (!This)
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return NULL;
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// some hack here!
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// it looks like Acelp decoder is actually accessing
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// the allocated memory before it sets the new size for it ???
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// -- maybe it's being initialized with wrong parameters
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// anyway this is fixes the problem somehow with some reserves
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//
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// using different trick for now - in DS_Audio modify sample size
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//if (size < 0x1000)
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// size = (size + 0xfff) & ~0xfff;
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This->vt = (IMediaSample_vt*) malloc(sizeof(IMediaSample_vt));
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This->own_block = (char*) malloc((size_t)size + SAFETY_ACEL);
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This->media_type.pbFormat = 0;
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This->media_type.pUnk = 0;
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if (!This->vt || !This->own_block)
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{
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CMediaSample_Destroy(This);
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return NULL;
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}
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This->vt->QueryInterface = CMediaSample_QueryInterface;
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This->vt->AddRef = CMediaSample_AddRef;
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This->vt->Release = CMediaSample_Release;
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This->vt->GetPointer = CMediaSample_GetPointer;
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This->vt->GetSize = CMediaSample_GetSize;
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This->vt->GetTime = CMediaSample_GetTime;
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This->vt->SetTime = CMediaSample_SetTime;
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This->vt->IsSyncPoint = CMediaSample_IsSyncPoint;
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This->vt->SetSyncPoint = CMediaSample_SetSyncPoint;
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This->vt->IsPreroll = CMediaSample_IsPreroll;
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This->vt->SetPreroll = CMediaSample_SetPreroll;
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This->vt->GetActualDataLength = CMediaSample_GetActualDataLength;
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This->vt->SetActualDataLength = CMediaSample_SetActualDataLength;
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This->vt->GetMediaType = CMediaSample_GetMediaType;
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This->vt->SetMediaType = CMediaSample_SetMediaType;
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This->vt->IsDiscontinuity = CMediaSample_IsDiscontinuity;
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This->vt->SetDiscontinuity = CMediaSample_SetDiscontinuity;
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This->vt->GetMediaTime = CMediaSample_GetMediaTime;
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This->vt->SetMediaTime = CMediaSample_SetMediaTime;
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This->all = allocator;
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This->size = size;
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This->refcount = 0; // increased by MemAllocator
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This->actual_size = 0;
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This->isPreroll = 0;
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This->isDiscontinuity = 1;
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This->time_start = 0;
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This->time_end = 0;
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This->type_valid = 0;
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This->block = This->own_block;
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This->SetPointer = CMediaSample_SetPointer;
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This->ResetPointer = CMediaSample_ResetPointer;
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Debug printf("CMediaSample_Create(%p) called - sample size %d, buffer %p\n",
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This, This->size, This->block);
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return This;
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}
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