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
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
|
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "VPXDecoder.h"
#include "gfx2DGlue.h"
#include "nsError.h"
#include "TimeUnits.h"
#include "mozilla/PodOperations.h"
#include "mozilla/SyncRunnable.h"
#include "prsystem.h"
#include <algorithm>
#undef LOG
#define LOG(arg, ...) MOZ_LOG(sPDMLog, mozilla::LogLevel::Debug, ("VPXDecoder(%p)::%s: " arg, this, __func__, ##__VA_ARGS__))
namespace mozilla {
using namespace gfx;
using namespace layers;
static int MimeTypeToCodec(const nsACString& aMimeType)
{
if (aMimeType.EqualsLiteral("video/webm; codecs=vp8")) {
return VPXDecoder::Codec::VP8;
} else if (aMimeType.EqualsLiteral("video/webm; codecs=vp9")) {
return VPXDecoder::Codec::VP9;
} else if (aMimeType.EqualsLiteral("video/vp9")) {
return VPXDecoder::Codec::VP9;
}
return -1;
}
VPXDecoder::VPXDecoder(const CreateDecoderParams& aParams)
: mImageContainer(aParams.mImageContainer)
, mTaskQueue(aParams.mTaskQueue)
, mCallback(aParams.mCallback)
, mIsFlushing(false)
, mInfo(aParams.VideoConfig())
, mCodec(MimeTypeToCodec(aParams.VideoConfig().mMimeType))
{
MOZ_COUNT_CTOR(VPXDecoder);
PodZero(&mVPX);
}
VPXDecoder::~VPXDecoder()
{
MOZ_COUNT_DTOR(VPXDecoder);
}
void
VPXDecoder::Shutdown()
{
vpx_codec_destroy(&mVPX);
}
RefPtr<MediaDataDecoder::InitPromise>
VPXDecoder::Init()
{
int decode_threads = 2;
vpx_codec_iface_t* dx = nullptr;
if (mCodec == Codec::VP8) {
dx = vpx_codec_vp8_dx();
} else if (mCodec == Codec::VP9) {
dx = vpx_codec_vp9_dx();
if (mInfo.mDisplay.width >= 2048) {
decode_threads = 8;
} else if (mInfo.mDisplay.width >= 1024) {
decode_threads = 4;
}
}
decode_threads = std::min(decode_threads, PR_GetNumberOfProcessors());
vpx_codec_dec_cfg_t config;
config.threads = decode_threads;
config.w = config.h = 0; // set after decode
if (!dx || vpx_codec_dec_init(&mVPX, dx, &config, 0)) {
return InitPromise::CreateAndReject(NS_ERROR_DOM_MEDIA_FATAL_ERR, __func__);
}
return InitPromise::CreateAndResolve(TrackInfo::kVideoTrack, __func__);
}
void
VPXDecoder::Flush()
{
MOZ_ASSERT(mCallback->OnReaderTaskQueue());
mIsFlushing = true;
nsCOMPtr<nsIRunnable> r = NS_NewRunnableFunction([this] () {
// nothing to do for now.
});
SyncRunnable::DispatchToThread(mTaskQueue, r);
mIsFlushing = false;
}
MediaResult
VPXDecoder::DoDecode(MediaRawData* aSample)
{
MOZ_ASSERT(mTaskQueue->IsCurrentThreadIn());
#if defined(DEBUG)
vpx_codec_stream_info_t si;
PodZero(&si);
si.sz = sizeof(si);
if (mCodec == Codec::VP8) {
vpx_codec_peek_stream_info(vpx_codec_vp8_dx(), aSample->Data(), aSample->Size(), &si);
} else if (mCodec == Codec::VP9) {
vpx_codec_peek_stream_info(vpx_codec_vp9_dx(), aSample->Data(), aSample->Size(), &si);
}
NS_ASSERTION(bool(si.is_kf) == aSample->mKeyframe,
"VPX Decode Keyframe error sample->mKeyframe and si.si_kf out of sync");
#endif
if (vpx_codec_err_t r = vpx_codec_decode(&mVPX, aSample->Data(), aSample->Size(), nullptr, 0)) {
LOG("VPX Decode error: %s", vpx_codec_err_to_string(r));
return MediaResult(
NS_ERROR_DOM_MEDIA_DECODE_ERR,
RESULT_DETAIL("VPX error: %s", vpx_codec_err_to_string(r)));
}
vpx_codec_iter_t iter = nullptr;
vpx_image_t *img;
while ((img = vpx_codec_get_frame(&mVPX, &iter))) {
NS_ASSERTION(img->fmt == VPX_IMG_FMT_I420 ||
img->fmt == VPX_IMG_FMT_I444,
"WebM image format not I420 or I444");
// Chroma shifts are rounded down as per the decoding examples in the SDK
VideoData::YCbCrBuffer b;
b.mPlanes[0].mData = img->planes[0];
b.mPlanes[0].mStride = img->stride[0];
b.mPlanes[0].mHeight = img->d_h;
b.mPlanes[0].mWidth = img->d_w;
b.mPlanes[0].mOffset = b.mPlanes[0].mSkip = 0;
b.mPlanes[1].mData = img->planes[1];
b.mPlanes[1].mStride = img->stride[1];
b.mPlanes[1].mOffset = b.mPlanes[1].mSkip = 0;
b.mPlanes[2].mData = img->planes[2];
b.mPlanes[2].mStride = img->stride[2];
b.mPlanes[2].mOffset = b.mPlanes[2].mSkip = 0;
if (img->fmt == VPX_IMG_FMT_I420) {
b.mPlanes[1].mHeight = (img->d_h + 1) >> img->y_chroma_shift;
b.mPlanes[1].mWidth = (img->d_w + 1) >> img->x_chroma_shift;
b.mPlanes[2].mHeight = (img->d_h + 1) >> img->y_chroma_shift;
b.mPlanes[2].mWidth = (img->d_w + 1) >> img->x_chroma_shift;
} else if (img->fmt == VPX_IMG_FMT_I444) {
b.mPlanes[1].mHeight = img->d_h;
b.mPlanes[1].mWidth = img->d_w;
b.mPlanes[2].mHeight = img->d_h;
b.mPlanes[2].mWidth = img->d_w;
} else {
LOG("VPX Unknown image format");
return MediaResult(NS_ERROR_DOM_MEDIA_DECODE_ERR,
RESULT_DETAIL("VPX Unknown image format"));
}
RefPtr<VideoData> v =
VideoData::CreateAndCopyData(mInfo,
mImageContainer,
aSample->mOffset,
aSample->mTime,
aSample->mDuration,
b,
aSample->mKeyframe,
aSample->mTimecode,
mInfo.ScaledImageRect(img->d_w,
img->d_h));
if (!v) {
LOG("Image allocation error source %ldx%ld display %ldx%ld picture %ldx%ld",
img->d_w, img->d_h, mInfo.mDisplay.width, mInfo.mDisplay.height,
mInfo.mImage.width, mInfo.mImage.height);
return MediaResult(NS_ERROR_OUT_OF_MEMORY, __func__);
}
mCallback->Output(v);
}
return NS_OK;
}
void
VPXDecoder::ProcessDecode(MediaRawData* aSample)
{
MOZ_ASSERT(mTaskQueue->IsCurrentThreadIn());
if (mIsFlushing) {
return;
}
MediaResult rv = DoDecode(aSample);
if (NS_FAILED(rv)) {
mCallback->Error(rv);
} else {
mCallback->InputExhausted();
}
}
void
VPXDecoder::Input(MediaRawData* aSample)
{
MOZ_ASSERT(mCallback->OnReaderTaskQueue());
mTaskQueue->Dispatch(NewRunnableMethod<RefPtr<MediaRawData>>(
this, &VPXDecoder::ProcessDecode, aSample));
}
void
VPXDecoder::ProcessDrain()
{
MOZ_ASSERT(mTaskQueue->IsCurrentThreadIn());
mCallback->DrainComplete();
}
void
VPXDecoder::Drain()
{
MOZ_ASSERT(mCallback->OnReaderTaskQueue());
mTaskQueue->Dispatch(NewRunnableMethod(this, &VPXDecoder::ProcessDrain));
}
/* static */
bool
VPXDecoder::IsVPX(const nsACString& aMimeType, uint8_t aCodecMask)
{
return ((aCodecMask & VPXDecoder::VP8) &&
aMimeType.EqualsLiteral("video/webm; codecs=vp8")) ||
((aCodecMask & VPXDecoder::VP9) &&
aMimeType.EqualsLiteral("video/webm; codecs=vp9")) ||
((aCodecMask & VPXDecoder::VP9) &&
aMimeType.EqualsLiteral("video/vp9"));
}
/* static */
bool
VPXDecoder::IsVP8(const nsACString& aMimeType)
{
return IsVPX(aMimeType, VPXDecoder::VP8);
}
/* static */
bool
VPXDecoder::IsVP9(const nsACString& aMimeType)
{
return IsVPX(aMimeType, VPXDecoder::VP9);
}
} // namespace mozilla
#undef LOG
|
