1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
|
/*
* Copyright (C) 2017 Hendrik Leppkes
* http://www.1f0.de
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "stdafx.h"
#include "D3D11SurfaceAllocator.h"
#include "decoders/d3d11va.h"
extern "C" {
#include "libavutil/hwcontext.h"
}
CD3D11MediaSample::CD3D11MediaSample(CD3D11SurfaceAllocator *pAllocator, AVFrame *pFrame, HRESULT *phr)
: CMediaSampleSideData(NAME("CD3D11MediaSample"), (CBaseAllocator*)pAllocator, phr, nullptr, 0)
, m_pFrame(pFrame)
{
ASSERT(m_pFrame && m_pFrame->format == AV_PIX_FMT_D3D11);
}
CD3D11MediaSample::~CD3D11MediaSample()
{
av_frame_free(&m_pFrame);
}
//Note: CMediaSample does not derive from CUnknown, so we cannot use the
// DECLARE_IUNKNOWN macro that is used by most of the filter classes.
STDMETHODIMP CD3D11MediaSample::QueryInterface(REFIID riid, __deref_out void **ppv)
{
CheckPointer(ppv, E_POINTER);
ValidateReadWritePtr(ppv, sizeof(PVOID));
if (riid == __uuidof(IMediaSampleD3D11)) {
return GetInterface((IMediaSampleD3D11 *) this, ppv);
}
else {
return __super::QueryInterface(riid, ppv);
}
}
STDMETHODIMP_(ULONG) CD3D11MediaSample::AddRef()
{
return __super::AddRef();
}
STDMETHODIMP_(ULONG) CD3D11MediaSample::Release()
{
// Return a temporary variable for thread safety.
ULONG cRef = __super::Release();
return cRef;
}
STDMETHODIMP CD3D11MediaSample::GetD3D11Texture(int nView, ID3D11Texture2D **ppTexture, UINT *pArraySlice)
{
CheckPointer(ppTexture, E_POINTER);
CheckPointer(pArraySlice, E_POINTER);
// only view 0 is implemented at this time
if (nView != 0)
return E_INVALIDARG;
if (m_pFrame)
{
*ppTexture = (ID3D11Texture2D *)m_pFrame->data[0];
*pArraySlice = (intptr_t)m_pFrame->data[1];
(*ppTexture)->AddRef();
return S_OK;
}
return E_FAIL;
}
static void bufref_release_sample(void *opaque, uint8_t *data)
{
CD3D11MediaSample *pSample = (CD3D11MediaSample *)opaque;
pSample->Release();
}
STDMETHODIMP CD3D11MediaSample::GetAVFrameBuffer(AVFrame *pFrame)
{
CheckPointer(pFrame, E_POINTER);
// reference bufs
for (int i = 0; i < AV_NUM_DATA_POINTERS; i++)
{
// copy existing refs
if (m_pFrame->buf[i])
{
pFrame->buf[i] = av_buffer_ref(m_pFrame->buf[i]);
if (pFrame->buf[i] == 0)
return E_OUTOFMEMORY;
}
else
{
// and add a ref to this sample
pFrame->buf[i] = av_buffer_create((uint8_t*)this, 1, bufref_release_sample, this, 0);
if (pFrame->buf[i] == 0)
return E_OUTOFMEMORY;
AddRef();
break;
}
}
// ref the hwframes ctx
pFrame->hw_frames_ctx = av_buffer_ref(m_pFrame->hw_frames_ctx);
// copy data into the new frame
pFrame->data[0] = m_pFrame->data[0];
pFrame->data[1] = m_pFrame->data[1];
pFrame->data[3] = (uint8_t *)this;
pFrame->format = AV_PIX_FMT_D3D11;
return S_OK;
}
CD3D11SurfaceAllocator::CD3D11SurfaceAllocator(CDecD3D11 *pDec, HRESULT *phr)
: CBaseAllocator(NAME("CD3D11SurfaceAllocator"), nullptr, phr)
, m_pDec(pDec)
{
}
CD3D11SurfaceAllocator::~CD3D11SurfaceAllocator()
{
}
HRESULT CD3D11SurfaceAllocator::Alloc(void)
{
DbgLog((LOG_TRACE, 10, L"CD3D11SurfaceAllocator::Alloc()"));
HRESULT hr = S_OK;
CAutoLock cObjectLock(this);
if (m_pDec == nullptr)
return E_FAIL;
hr = __super::Alloc();
if (FAILED(hr))
return hr;
// free old resources
//m_pDec->FlushFromAllocator();
Free();
// get the frames context from the decoder
AVBufferRef *pDecoderFramesCtx = m_pDec->m_pFramesCtx;
if (pDecoderFramesCtx == nullptr)
return S_FALSE;
m_pFramesCtx = av_buffer_ref(pDecoderFramesCtx);
if (m_pFramesCtx == nullptr)
return E_FAIL;
// create samples
for (int i = 0; i < m_lCount; i++)
{
AVFrame *pFrame = av_frame_alloc();
int ret = av_hwframe_get_buffer(m_pFramesCtx, pFrame, 0);
if (ret < 0)
{
av_frame_free(&pFrame);
Free();
return E_FAIL;
}
CD3D11MediaSample *pSample = new CD3D11MediaSample(this, pFrame, &hr);
if (pSample == nullptr || FAILED(hr))
{
delete pSample;
Free();
return E_FAIL;
}
m_lFree.Add(pSample);
}
m_lAllocated = m_lCount;
m_bChanged = FALSE;
return S_OK;
}
void CD3D11SurfaceAllocator::Free(void)
{
CAutoLock lock(this);
CMediaSample *pSample = nullptr;
do {
pSample = m_lFree.RemoveHead();
if (pSample) {
delete pSample;
}
} while (pSample);
m_lAllocated = 0;
av_buffer_unref(&m_pFramesCtx);
}
|
