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
|
/* -*- 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/. */
#ifndef __FFmpegVideoDecoder_h__
#define __FFmpegVideoDecoder_h__
#include "ImageContainer.h"
#include "FFmpegDataDecoder.h"
#include "FFmpegLibWrapper.h"
#include "PerformanceRecorder.h"
#include "SimpleMap.h"
#include "mozilla/ScopeExit.h"
#include "nsTHashSet.h"
#if LIBAVCODEC_VERSION_MAJOR >= 57 && LIBAVUTIL_VERSION_MAJOR >= 56
# include "mozilla/layers/TextureClient.h"
#endif
#ifdef MOZ_WAYLAND_USE_HWDECODE
# include "FFmpegVideoFramePool.h"
#endif
struct _VADRMPRIMESurfaceDescriptor;
typedef struct _VADRMPRIMESurfaceDescriptor VADRMPRIMESurfaceDescriptor;
namespace mozilla {
class ImageBufferWrapper;
template <int V>
class FFmpegVideoDecoder : public FFmpegDataDecoder<V> {};
template <>
class FFmpegVideoDecoder<LIBAV_VER>;
DDLoggedTypeNameAndBase(FFmpegVideoDecoder<LIBAV_VER>,
FFmpegDataDecoder<LIBAV_VER>);
template <>
class FFmpegVideoDecoder<LIBAV_VER>
: public FFmpegDataDecoder<LIBAV_VER>,
public DecoderDoctorLifeLogger<FFmpegVideoDecoder<LIBAV_VER>> {
typedef mozilla::layers::Image Image;
typedef mozilla::layers::ImageContainer ImageContainer;
typedef mozilla::layers::KnowsCompositor KnowsCompositor;
typedef SimpleMap<int64_t> DurationMap;
public:
FFmpegVideoDecoder(FFmpegLibWrapper* aLib, const VideoInfo& aConfig,
KnowsCompositor* aAllocator,
ImageContainer* aImageContainer, bool aLowLatency,
bool aDisableHardwareDecoding,
Maybe<TrackingId> aTrackingId);
~FFmpegVideoDecoder();
RefPtr<InitPromise> Init() override;
void InitCodecContext() MOZ_REQUIRES(sMutex) override;
nsCString GetDescriptionName() const override {
#ifdef USING_MOZFFVPX
return "ffvpx video decoder"_ns;
#else
return "ffmpeg video decoder"_ns;
#endif
}
nsCString GetCodecName() const override;
ConversionRequired NeedsConversion() const override {
return ConversionRequired::kNeedAVCC;
}
static AVCodecID GetCodecId(const nsACString& aMimeType);
#if LIBAVCODEC_VERSION_MAJOR >= 57 && LIBAVUTIL_VERSION_MAJOR >= 56
int GetVideoBuffer(struct AVCodecContext* aCodecContext, AVFrame* aFrame,
int aFlags);
int GetVideoBufferDefault(struct AVCodecContext* aCodecContext,
AVFrame* aFrame, int aFlags) {
mIsUsingShmemBufferForDecode = Some(false);
return mLib->avcodec_default_get_buffer2(aCodecContext, aFrame, aFlags);
}
void ReleaseAllocatedImage(ImageBufferWrapper* aImage) {
mAllocatedImages.Remove(aImage);
}
#endif
private:
RefPtr<FlushPromise> ProcessFlush() override;
void ProcessShutdown() override;
MediaResult DoDecode(MediaRawData* aSample, uint8_t* aData, int aSize,
bool* aGotFrame, DecodedData& aResults) override;
void OutputDelayedFrames();
bool NeedParser() const override {
return
#if LIBAVCODEC_VERSION_MAJOR >= 58
false;
#else
# if LIBAVCODEC_VERSION_MAJOR >= 55
mCodecID == AV_CODEC_ID_VP9 ||
# endif
mCodecID == AV_CODEC_ID_VP8;
#endif
}
gfx::YUVColorSpace GetFrameColorSpace() const;
gfx::ColorSpace2 GetFrameColorPrimaries() const;
gfx::ColorRange GetFrameColorRange() const;
MediaResult CreateImage(int64_t aOffset, int64_t aPts, int64_t aDuration,
MediaDataDecoder::DecodedData& aResults) const;
bool IsHardwareAccelerated(nsACString& aFailureReason) const override;
bool IsHardwareAccelerated() const {
nsAutoCString dummy;
return IsHardwareAccelerated(dummy);
}
void UpdateDecodeTimes(TimeStamp aDecodeStart);
#if LIBAVCODEC_VERSION_MAJOR >= 57 && LIBAVUTIL_VERSION_MAJOR >= 56
layers::TextureClient* AllocateTextureClientForImage(
struct AVCodecContext* aCodecContext, layers::PlanarYCbCrImage* aImage);
gfx::IntSize GetAlignmentVideoFrameSize(struct AVCodecContext* aCodecContext,
int32_t aWidth,
int32_t aHeight) const;
#endif
#ifdef MOZ_WAYLAND_USE_HWDECODE
void InitHWDecodingPrefs();
MediaResult InitVAAPIDecoder();
bool CreateVAAPIDeviceContext();
void InitVAAPICodecContext();
AVCodec* FindVAAPICodec();
bool GetVAAPISurfaceDescriptor(VADRMPRIMESurfaceDescriptor* aVaDesc);
void AddAcceleratedFormats(nsTArray<AVCodecID>& aCodecList,
AVCodecID aCodecID, AVVAAPIHWConfig* hwconfig);
nsTArray<AVCodecID> GetAcceleratedFormats();
bool IsFormatAccelerated(AVCodecID aCodecID) const;
MediaResult CreateImageVAAPI(int64_t aOffset, int64_t aPts, int64_t aDuration,
MediaDataDecoder::DecodedData& aResults);
#endif
#ifdef MOZ_WAYLAND_USE_HWDECODE
AVBufferRef* mVAAPIDeviceContext;
bool mEnableHardwareDecoding;
VADisplay mDisplay;
UniquePtr<VideoFramePool<LIBAV_VER>> mVideoFramePool;
static nsTArray<AVCodecID> mAcceleratedFormats;
#endif
RefPtr<KnowsCompositor> mImageAllocator;
RefPtr<ImageContainer> mImageContainer;
VideoInfo mInfo;
int mDecodedFrames;
#if LIBAVCODEC_VERSION_MAJOR >= 58
int mDecodedFramesLate;
// Tracks when decode time of recent frame and averange decode time of
// previous frames is bigger than frame interval,
// i.e. we fail to decode in time.
// We switch to SW decode when we hit HW_DECODE_LATE_FRAMES treshold.
int mMissedDecodeInAverangeTime;
#endif
float mAverangeDecodeTime;
class PtsCorrectionContext {
public:
PtsCorrectionContext();
int64_t GuessCorrectPts(int64_t aPts, int64_t aDts);
void Reset();
int64_t LastDts() const { return mLastDts; }
private:
int64_t mNumFaultyPts; /// Number of incorrect PTS values so far
int64_t mNumFaultyDts; /// Number of incorrect DTS values so far
int64_t mLastPts; /// PTS of the last frame
int64_t mLastDts; /// DTS of the last frame
};
PtsCorrectionContext mPtsContext;
DurationMap mDurationMap;
const bool mLowLatency;
const Maybe<TrackingId> mTrackingId;
PerformanceRecorderMulti<DecodeStage> mPerformanceRecorder;
// True if we're allocating shmem for ffmpeg decode buffer.
Maybe<Atomic<bool>> mIsUsingShmemBufferForDecode;
#if LIBAVCODEC_VERSION_MAJOR >= 57 && LIBAVUTIL_VERSION_MAJOR >= 56
// These images are buffers for ffmpeg in order to store decoded data when
// using custom allocator for decoding. We want to explictly track all images
// we allocate to ensure that we won't leak any of them.
//
// All images tracked by mAllocatedImages are used by ffmpeg,
// i.e. ffmpeg holds a reference to them and uses them in
// its internal decoding queue.
//
// When an image is removed from mAllocatedImages it's recycled
// for a new frame by AllocateTextureClientForImage() in
// FFmpegVideoDecoder::GetVideoBuffer().
nsTHashSet<RefPtr<ImageBufferWrapper>> mAllocatedImages;
#endif
};
#if LIBAVCODEC_VERSION_MAJOR >= 57 && LIBAVUTIL_VERSION_MAJOR >= 56
class ImageBufferWrapper final {
public:
typedef mozilla::layers::Image Image;
typedef mozilla::layers::PlanarYCbCrImage PlanarYCbCrImage;
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(ImageBufferWrapper)
ImageBufferWrapper(Image* aImage, void* aDecoder)
: mImage(aImage), mDecoder(aDecoder) {
MOZ_ASSERT(aImage);
MOZ_ASSERT(mDecoder);
}
Image* AsImage() { return mImage; }
void ReleaseBuffer() {
auto* decoder = static_cast<FFmpegVideoDecoder<LIBAV_VER>*>(mDecoder);
decoder->ReleaseAllocatedImage(this);
}
private:
~ImageBufferWrapper() = default;
const RefPtr<Image> mImage;
void* const MOZ_NON_OWNING_REF mDecoder;
};
#endif
} // namespace mozilla
#endif // __FFmpegVideoDecoder_h__
|
