summaryrefslogtreecommitdiffstats
path: root/dom/media/MediaData.cpp
blob: fa545604e64983d2df999a97a70106bf390ea1cd (plain)
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
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "MediaData.h"

#include "ImageContainer.h"
#include "MediaInfo.h"
#include "MediaResult.h"
#include "PerformanceRecorder.h"
#include "VideoUtils.h"
#include "YCbCrUtils.h"
#include "mozilla/gfx/gfxVars.h"
#include "mozilla/layers/ImageBridgeChild.h"
#include "mozilla/layers/KnowsCompositor.h"
#include "mozilla/layers/SharedRGBImage.h"

#include <stdint.h>

#ifdef XP_WIN
#  include "mozilla/gfx/DeviceManagerDx.h"
#  include "mozilla/layers/D3D11ShareHandleImage.h"
#  include "mozilla/layers/D3D11YCbCrImage.h"
#elif XP_MACOSX
#  include "MacIOSurfaceImage.h"
#  include "mozilla/gfx/gfxVars.h"
#endif

namespace mozilla {

using namespace mozilla::gfx;
using layers::PlanarYCbCrData;
using layers::PlanarYCbCrImage;
using media::TimeUnit;

const char* AudioData::sTypeName = "audio";
const char* VideoData::sTypeName = "video";

AudioData::AudioData(int64_t aOffset, const media::TimeUnit& aTime,
                     AlignedAudioBuffer&& aData, uint32_t aChannels,
                     uint32_t aRate, uint32_t aChannelMap)
    // Passing TimeUnit::Zero() here because we can't pass the result of an
    // arithmetic operation to the CheckedInt ctor. We set the duration in the
    // ctor body below.
    : MediaData(sType, aOffset, aTime, TimeUnit::Zero()),
      mChannels(aChannels),
      mChannelMap(aChannelMap),
      mRate(aRate),
      mOriginalTime(aTime),
      mAudioData(std::move(aData)),
      mFrames(mAudioData.Length() / aChannels) {
  MOZ_RELEASE_ASSERT(aChannels != 0,
                     "Can't create an AudioData with 0 channels.");
  MOZ_RELEASE_ASSERT(aRate != 0,
                     "Can't create an AudioData with a sample-rate of 0.");
  mDuration = TimeUnit(mFrames, aRate);
}

Span<AudioDataValue> AudioData::Data() const {
  return Span{GetAdjustedData(), mFrames * mChannels};
}

void AudioData::SetOriginalStartTime(const media::TimeUnit& aStartTime) {
  MOZ_ASSERT(mTime == mOriginalTime,
             "Do not call this if data has been trimmed!");
  mTime = aStartTime;
  mOriginalTime = aStartTime;
}

bool AudioData::AdjustForStartTime(const media::TimeUnit& aStartTime) {
  mOriginalTime -= aStartTime;
  mTime -= aStartTime;
  if (mTrimWindow) {
    *mTrimWindow -= aStartTime;
  }
  if (mTime.IsNegative()) {
    NS_WARNING("Negative audio start time after time-adjustment!");
  }
  return mTime.IsValid() && mOriginalTime.IsValid();
}

bool AudioData::SetTrimWindow(const media::TimeInterval& aTrim) {
  MOZ_DIAGNOSTIC_ASSERT(aTrim.mStart.IsValid() && aTrim.mEnd.IsValid(),
                        "An overflow occurred on the provided TimeInterval");
  if (!mAudioData) {
    // MoveableData got called. Can no longer work on it.
    return false;
  }
  if (aTrim.mStart < mOriginalTime || aTrim.mEnd > GetEndTime()) {
    return false;
  }

  auto trimBefore = aTrim.mStart - mOriginalTime;
  auto trimAfter = aTrim.mEnd - mOriginalTime;
  if (!trimBefore.IsValid() || !trimAfter.IsValid()) {
    // Overflow.
    return false;
  }
  if (!mTrimWindow && trimBefore.IsZero() && trimAfter == mDuration) {
    // Nothing to change, abort early to prevent rounding errors.
    return true;
  }

  size_t frameOffset = trimBefore.ToTicksAtRate(mRate);
  mTrimWindow = Some(aTrim);
  mDataOffset = frameOffset * mChannels;
  MOZ_DIAGNOSTIC_ASSERT(mDataOffset <= mAudioData.Length(),
                        "Data offset outside original buffer");
  int64_t frameCountAfterTrim = (trimAfter - trimBefore).ToTicksAtRate(mRate);
  if (frameCountAfterTrim >
      AssertedCast<int64_t>(mAudioData.Length() / mChannels)) {
    // Accept rounding error caused by an imprecise time_base in the container,
    // that can cause a mismatch but not other kind of unexpected frame count.
    MOZ_RELEASE_ASSERT(!trimBefore.IsBase(mRate));
    mFrames = 0;
  } else {
    mFrames = frameCountAfterTrim;
  }
  mTime = mOriginalTime + trimBefore;
  mDuration = TimeUnit(mFrames, mRate);

  return true;
}

AudioDataValue* AudioData::GetAdjustedData() const {
  if (!mAudioData) {
    return nullptr;
  }
  return mAudioData.Data() + mDataOffset;
}

void AudioData::EnsureAudioBuffer() {
  if (mAudioBuffer || !mAudioData) {
    return;
  }
  const AudioDataValue* srcData = GetAdjustedData();
  CheckedInt<size_t> bufferSize(sizeof(AudioDataValue));
  bufferSize *= mFrames;
  bufferSize *= mChannels;
  mAudioBuffer = SharedBuffer::Create(bufferSize);

  AudioDataValue* destData = static_cast<AudioDataValue*>(mAudioBuffer->Data());
  for (uint32_t i = 0; i < mFrames; ++i) {
    for (uint32_t j = 0; j < mChannels; ++j) {
      destData[j * mFrames + i] = srcData[i * mChannels + j];
    }
  }
}

size_t AudioData::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const {
  size_t size =
      aMallocSizeOf(this) + mAudioData.SizeOfExcludingThis(aMallocSizeOf);
  if (mAudioBuffer) {
    size += mAudioBuffer->SizeOfIncludingThis(aMallocSizeOf);
  }
  return size;
}

AlignedAudioBuffer AudioData::MoveableData() {
  // Trim buffer according to trimming mask.
  mAudioData.PopFront(mDataOffset);
  mAudioData.SetLength(mFrames * mChannels);
  mDataOffset = 0;
  mFrames = 0;
  mTrimWindow.reset();
  return std::move(mAudioData);
}

static bool ValidatePlane(const VideoData::YCbCrBuffer::Plane& aPlane) {
  return aPlane.mWidth <= PlanarYCbCrImage::MAX_DIMENSION &&
         aPlane.mHeight <= PlanarYCbCrImage::MAX_DIMENSION &&
         aPlane.mWidth * aPlane.mHeight < MAX_VIDEO_WIDTH * MAX_VIDEO_HEIGHT &&
         aPlane.mStride > 0 && aPlane.mWidth <= aPlane.mStride;
}

static MediaResult ValidateBufferAndPicture(
    const VideoData::YCbCrBuffer& aBuffer, const IntRect& aPicture) {
  // The following situation should never happen unless there is a bug
  // in the decoder
  if (aBuffer.mPlanes[1].mWidth != aBuffer.mPlanes[2].mWidth ||
      aBuffer.mPlanes[1].mHeight != aBuffer.mPlanes[2].mHeight) {
    return MediaResult(NS_ERROR_INVALID_ARG,
                       "Chroma planes with different sizes");
  }

  // The following situations could be triggered by invalid input
  if (aPicture.width <= 0 || aPicture.height <= 0) {
    return MediaResult(NS_ERROR_INVALID_ARG, "Empty picture rect");
  }
  if (!ValidatePlane(aBuffer.mPlanes[0]) ||
      !ValidatePlane(aBuffer.mPlanes[1]) ||
      !ValidatePlane(aBuffer.mPlanes[2])) {
    return MediaResult(NS_ERROR_INVALID_ARG, "Invalid plane size");
  }

  // Ensure the picture size specified in the headers can be extracted out of
  // the frame we've been supplied without indexing out of bounds.
  CheckedUint32 xLimit = aPicture.x + CheckedUint32(aPicture.width);
  CheckedUint32 yLimit = aPicture.y + CheckedUint32(aPicture.height);
  if (!xLimit.isValid() || xLimit.value() > aBuffer.mPlanes[0].mStride ||
      !yLimit.isValid() || yLimit.value() > aBuffer.mPlanes[0].mHeight) {
    // The specified picture dimensions can't be contained inside the video
    // frame, we'll stomp memory if we try to copy it. Fail.
    return MediaResult(NS_ERROR_INVALID_ARG, "Overflowing picture rect");
  }
  return MediaResult(NS_OK);
}

VideoData::VideoData(int64_t aOffset, const TimeUnit& aTime,
                     const TimeUnit& aDuration, bool aKeyframe,
                     const TimeUnit& aTimecode, IntSize aDisplay,
                     layers::ImageContainer::FrameID aFrameID)
    : MediaData(Type::VIDEO_DATA, aOffset, aTime, aDuration),
      mDisplay(aDisplay),
      mFrameID(aFrameID),
      mSentToCompositor(false),
      mNextKeyFrameTime(TimeUnit::Invalid()) {
  MOZ_ASSERT(!mDuration.IsNegative(), "Frame must have non-negative duration.");
  mKeyframe = aKeyframe;
  mTimecode = aTimecode;
}

VideoData::~VideoData() = default;

size_t VideoData::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const {
  size_t size = aMallocSizeOf(this);

  // Currently only PLANAR_YCBCR has a well defined function for determining
  // it's size, so reporting is limited to that type.
  if (mImage && mImage->GetFormat() == ImageFormat::PLANAR_YCBCR) {
    const mozilla::layers::PlanarYCbCrImage* img =
        static_cast<const mozilla::layers::PlanarYCbCrImage*>(mImage.get());
    size += img->SizeOfIncludingThis(aMallocSizeOf);
  }

  return size;
}

ColorDepth VideoData::GetColorDepth() const {
  if (!mImage) {
    return ColorDepth::COLOR_8;
  }

  return mImage->GetColorDepth();
}

void VideoData::UpdateDuration(const TimeUnit& aDuration) {
  MOZ_ASSERT(!aDuration.IsNegative());
  mDuration = aDuration;
}

void VideoData::UpdateTimestamp(const TimeUnit& aTimestamp) {
  MOZ_ASSERT(!aTimestamp.IsNegative());

  auto updatedDuration = GetEndTime() - aTimestamp;
  MOZ_ASSERT(!updatedDuration.IsNegative());

  mTime = aTimestamp;
  mDuration = updatedDuration;
}

bool VideoData::AdjustForStartTime(const media::TimeUnit& aStartTime) {
  mTime -= aStartTime;
  if (mTime.IsNegative()) {
    NS_WARNING("Negative video start time after time-adjustment!");
  }
  return mTime.IsValid();
}

PlanarYCbCrData ConstructPlanarYCbCrData(const VideoInfo& aInfo,
                                         const VideoData::YCbCrBuffer& aBuffer,
                                         const IntRect& aPicture) {
  const VideoData::YCbCrBuffer::Plane& Y = aBuffer.mPlanes[0];
  const VideoData::YCbCrBuffer::Plane& Cb = aBuffer.mPlanes[1];
  const VideoData::YCbCrBuffer::Plane& Cr = aBuffer.mPlanes[2];

  PlanarYCbCrData data;
  data.mYChannel = Y.mData;
  data.mYStride = AssertedCast<int32_t>(Y.mStride);
  data.mYSkip = AssertedCast<int32_t>(Y.mSkip);
  data.mCbChannel = Cb.mData;
  data.mCrChannel = Cr.mData;
  data.mCbCrStride = AssertedCast<int32_t>(Cb.mStride);
  data.mCbSkip = AssertedCast<int32_t>(Cb.mSkip);
  data.mCrSkip = AssertedCast<int32_t>(Cr.mSkip);
  data.mPictureRect = aPicture;
  data.mStereoMode = aInfo.mStereoMode;
  data.mYUVColorSpace = aBuffer.mYUVColorSpace;
  data.mColorPrimaries = aBuffer.mColorPrimaries;
  data.mColorDepth = aBuffer.mColorDepth;
  if (aInfo.mTransferFunction) {
    data.mTransferFunction = *aInfo.mTransferFunction;
  }
  data.mColorRange = aBuffer.mColorRange;
  data.mChromaSubsampling = aBuffer.mChromaSubsampling;
  return data;
}

/* static */
MediaResult VideoData::SetVideoDataToImage(PlanarYCbCrImage* aVideoImage,
                                           const VideoInfo& aInfo,
                                           const YCbCrBuffer& aBuffer,
                                           const IntRect& aPicture,
                                           bool aCopyData) {
  MOZ_ASSERT(aVideoImage);

  PlanarYCbCrData data = ConstructPlanarYCbCrData(aInfo, aBuffer, aPicture);

  if (aCopyData) {
    return MediaResult(aVideoImage->CopyData(data),
                       RESULT_DETAIL("Failed to copy image data"));
  }
  return MediaResult(aVideoImage->AdoptData(data),
                     RESULT_DETAIL("Failed to adopt image data"));
}

/* static */
Result<already_AddRefed<VideoData>, MediaResult> VideoData::CreateAndCopyData(
    const VideoInfo& aInfo, ImageContainer* aContainer, int64_t aOffset,
    const TimeUnit& aTime, const TimeUnit& aDuration,
    const YCbCrBuffer& aBuffer, bool aKeyframe, const TimeUnit& aTimecode,
    const IntRect& aPicture, layers::KnowsCompositor* aAllocator) {
  if (!aContainer) {
    // Create a dummy VideoData with no image. This gives us something to
    // send to media streams if necessary.
    RefPtr<VideoData> v(new VideoData(aOffset, aTime, aDuration, aKeyframe,
                                      aTimecode, aInfo.mDisplay, 0));
    return v.forget();
  }

  if (MediaResult r = ValidateBufferAndPicture(aBuffer, aPicture);
      NS_FAILED(r)) {
    return Err(r);
  }

  PerformanceRecorder<PlaybackStage> perfRecorder(MediaStage::CopyDecodedVideo,
                                                  aInfo.mImage.height);
  RefPtr<VideoData> v(new VideoData(aOffset, aTime, aDuration, aKeyframe,
                                    aTimecode, aInfo.mDisplay, 0));

  // Currently our decoder only knows how to output to ImageFormat::PLANAR_YCBCR
  // format.
#if XP_MACOSX
  if (aAllocator && aAllocator->GetWebRenderCompositorType() !=
                        layers::WebRenderCompositor::SOFTWARE) {
    RefPtr<layers::MacIOSurfaceImage> ioImage =
        new layers::MacIOSurfaceImage(nullptr);
    PlanarYCbCrData data = ConstructPlanarYCbCrData(aInfo, aBuffer, aPicture);
    if (ioImage->SetData(aContainer, data)) {
      v->mImage = ioImage;
      perfRecorder.Record();
      return v.forget();
    }
  }
#endif
  if (!v->mImage) {
    v->mImage = aContainer->CreatePlanarYCbCrImage();
  }

  if (!v->mImage) {
    // TODO: Should other error like NS_ERROR_UNEXPECTED be used here to
    // distinguish this error from the NS_ERROR_OUT_OF_MEMORY below?
    return Err(MediaResult(NS_ERROR_OUT_OF_MEMORY,
                           "Failed to create a PlanarYCbCrImage"));
  }
  NS_ASSERTION(v->mImage->GetFormat() == ImageFormat::PLANAR_YCBCR,
               "Wrong format?");
  PlanarYCbCrImage* videoImage = v->mImage->AsPlanarYCbCrImage();
  MOZ_ASSERT(videoImage);

  if (MediaResult r = VideoData::SetVideoDataToImage(
          videoImage, aInfo, aBuffer, aPicture, true /* aCopyData */);
      NS_FAILED(r)) {
    return Err(r);
  }

  perfRecorder.Record();
  return v.forget();
}

/* static */
already_AddRefed<VideoData> VideoData::CreateAndCopyData(
    const VideoInfo& aInfo, ImageContainer* aContainer, int64_t aOffset,
    const TimeUnit& aTime, const TimeUnit& aDuration,
    const YCbCrBuffer& aBuffer, const YCbCrBuffer::Plane& aAlphaPlane,
    bool aKeyframe, const TimeUnit& aTimecode, const IntRect& aPicture) {
  if (!aContainer) {
    // Create a dummy VideoData with no image. This gives us something to
    // send to media streams if necessary.
    RefPtr<VideoData> v(new VideoData(aOffset, aTime, aDuration, aKeyframe,
                                      aTimecode, aInfo.mDisplay, 0));
    return v.forget();
  }

  if (MediaResult r = ValidateBufferAndPicture(aBuffer, aPicture);
      NS_FAILED(r)) {
    NS_ERROR(r.Message().get());
    return nullptr;
  }

  RefPtr<VideoData> v(new VideoData(aOffset, aTime, aDuration, aKeyframe,
                                    aTimecode, aInfo.mDisplay, 0));

  // Convert from YUVA to BGRA format on the software side.
  RefPtr<layers::SharedRGBImage> videoImage =
      aContainer->CreateSharedRGBImage();
  v->mImage = videoImage;

  if (!v->mImage) {
    return nullptr;
  }
  if (!videoImage->Allocate(
          IntSize(aBuffer.mPlanes[0].mWidth, aBuffer.mPlanes[0].mHeight),
          SurfaceFormat::B8G8R8A8)) {
    return nullptr;
  }

  RefPtr<layers::TextureClient> texture =
      videoImage->GetTextureClient(/* aKnowsCompositor */ nullptr);
  if (!texture) {
    NS_WARNING("Failed to allocate TextureClient");
    return nullptr;
  }

  layers::TextureClientAutoLock autoLock(texture,
                                         layers::OpenMode::OPEN_WRITE_ONLY);
  if (!autoLock.Succeeded()) {
    NS_WARNING("Failed to lock TextureClient");
    return nullptr;
  }

  layers::MappedTextureData buffer;
  if (!texture->BorrowMappedData(buffer)) {
    NS_WARNING("Failed to borrow mapped data");
    return nullptr;
  }

  // The naming convention for libyuv and associated utils is word-order.
  // The naming convention in the gfx stack is byte-order.
  ConvertI420AlphaToARGB(aBuffer.mPlanes[0].mData, aBuffer.mPlanes[1].mData,
                         aBuffer.mPlanes[2].mData, aAlphaPlane.mData,
                         AssertedCast<int>(aBuffer.mPlanes[0].mStride),
                         AssertedCast<int>(aBuffer.mPlanes[1].mStride),
                         buffer.data, buffer.stride, buffer.size.width,
                         buffer.size.height);

  return v.forget();
}

/* static */
already_AddRefed<VideoData> VideoData::CreateFromImage(
    const IntSize& aDisplay, int64_t aOffset, const TimeUnit& aTime,
    const TimeUnit& aDuration, const RefPtr<Image>& aImage, bool aKeyframe,
    const TimeUnit& aTimecode) {
  RefPtr<VideoData> v(new VideoData(aOffset, aTime, aDuration, aKeyframe,
                                    aTimecode, aDisplay, 0));
  v->mImage = aImage;
  return v.forget();
}

nsCString VideoData::ToString() const {
  std::array ImageFormatStrings = {
      "PLANAR_YCBCR",
      "NV_IMAGE",
      "SHARED_RGB",
      "MOZ2D_SURFACE",
      "MAC_IOSURFACE",
      "SURFACE_TEXTURE",
      "D3D9_RGB32_TEXTURE",
      "OVERLAY_IMAGE",
      "D3D11_SHARE_HANDLE_TEXTURE",
      "D3D11_TEXTURE_IMF_SAMPLE",
      "TEXTURE_WRAPPER",
      "D3D11_YCBCR_IMAGE",
      "GPU_VIDEO",
      "DMABUF",
      "DCOMP_SURFACE",
  };

  nsCString rv;
  rv.AppendPrintf(
      "VideoFrame [%s,%s] [%dx%d] format: %s", mTime.ToString().get(),
      mDuration.ToString().get(), mDisplay.Width(), mDisplay.Height(),
      mImage ? ImageFormatStrings[static_cast<int>(mImage->GetFormat())]
             : "null");
  return rv;
}

MediaRawData::MediaRawData()
    : MediaData(Type::RAW_DATA), mCrypto(mCryptoInternal) {}

MediaRawData::MediaRawData(const uint8_t* aData, size_t aSize)
    : MediaData(Type::RAW_DATA),
      mCrypto(mCryptoInternal),
      mBuffer(aData, aSize) {}

MediaRawData::MediaRawData(const uint8_t* aData, size_t aSize,
                           const uint8_t* aAlphaData, size_t aAlphaSize)
    : MediaData(Type::RAW_DATA),
      mCrypto(mCryptoInternal),
      mBuffer(aData, aSize),
      mAlphaBuffer(aAlphaData, aAlphaSize) {}

MediaRawData::MediaRawData(AlignedByteBuffer&& aData)
    : MediaData(Type::RAW_DATA),
      mCrypto(mCryptoInternal),
      mBuffer(std::move(aData)) {}

MediaRawData::MediaRawData(AlignedByteBuffer&& aData,
                           AlignedByteBuffer&& aAlphaData)
    : MediaData(Type::RAW_DATA),
      mCrypto(mCryptoInternal),
      mBuffer(std::move(aData)),
      mAlphaBuffer(std::move(aAlphaData)) {}

already_AddRefed<MediaRawData> MediaRawData::Clone() const {
  int32_t sampleHeight = 0;
  if (mTrackInfo && mTrackInfo->GetAsVideoInfo()) {
    sampleHeight = mTrackInfo->GetAsVideoInfo()->mImage.height;
  }
  PerformanceRecorder<PlaybackStage> perfRecorder(MediaStage::CopyDemuxedData,
                                                  sampleHeight);
  RefPtr<MediaRawData> s = new MediaRawData;
  s->mTimecode = mTimecode;
  s->mTime = mTime;
  s->mDuration = mDuration;
  s->mOffset = mOffset;
  s->mKeyframe = mKeyframe;
  s->mExtraData = mExtraData;
  s->mCryptoInternal = mCryptoInternal;
  s->mTrackInfo = mTrackInfo;
  s->mEOS = mEOS;
  s->mOriginalPresentationWindow = mOriginalPresentationWindow;
  if (!s->mBuffer.Append(mBuffer.Data(), mBuffer.Length())) {
    return nullptr;
  }
  if (!s->mAlphaBuffer.Append(mAlphaBuffer.Data(), mAlphaBuffer.Length())) {
    return nullptr;
  }
  perfRecorder.Record();
  return s.forget();
}

MediaRawData::~MediaRawData() = default;

size_t MediaRawData::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const {
  size_t size = aMallocSizeOf(this);
  size += mBuffer.SizeOfExcludingThis(aMallocSizeOf);
  return size;
}

UniquePtr<MediaRawDataWriter> MediaRawData::CreateWriter() {
  UniquePtr<MediaRawDataWriter> p(new MediaRawDataWriter(this));
  return p;
}

MediaRawDataWriter::MediaRawDataWriter(MediaRawData* aMediaRawData)
    : mCrypto(aMediaRawData->mCryptoInternal), mTarget(aMediaRawData) {}

bool MediaRawDataWriter::SetSize(size_t aSize) {
  return mTarget->mBuffer.SetLength(aSize);
}

bool MediaRawDataWriter::Prepend(const uint8_t* aData, size_t aSize) {
  return mTarget->mBuffer.Prepend(aData, aSize);
}

bool MediaRawDataWriter::Append(const uint8_t* aData, size_t aSize) {
  return mTarget->mBuffer.Append(aData, aSize);
}

bool MediaRawDataWriter::Replace(const uint8_t* aData, size_t aSize) {
  return mTarget->mBuffer.Replace(aData, aSize);
}

void MediaRawDataWriter::Clear() { mTarget->mBuffer.Clear(); }

uint8_t* MediaRawDataWriter::Data() { return mTarget->mBuffer.Data(); }

size_t MediaRawDataWriter::Size() { return mTarget->Size(); }

void MediaRawDataWriter::PopFront(size_t aSize) {
  mTarget->mBuffer.PopFront(aSize);
}

const char* CryptoSchemeToString(const CryptoScheme& aScheme) {
  switch (aScheme) {
    case CryptoScheme::None:
      return "None";
    case CryptoScheme::Cenc:
      return "Cenc";
    case CryptoScheme::Cbcs:
      return "Cbcs";
    default:
      MOZ_ASSERT_UNREACHABLE();
      return "";
  }
}

}  // namespace mozilla