summaryrefslogtreecommitdiff
path: root/dom/media/MediaData.cpp
blob: 4852ea486b90da56c576ba46341081d1828044a9 (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
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "MediaInfo.h"
#include "VideoUtils.h"
#include "ImageContainer.h"

#include <stdint.h>

namespace mozilla {

using namespace mozilla::gfx;
using layers::ImageContainer;
using layers::PlanarYCbCrImage;
using layers::PlanarYCbCrData;

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

void
AudioData::EnsureAudioBuffer()
{
  if (mAudioBuffer)
    return;
  mAudioBuffer = SharedBuffer::Create(mFrames*mChannels*sizeof(AudioDataValue));

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

bool
AudioData::IsAudible() const
{
  if (!mAudioData) {
    return false;
  }

  for (uint32_t frame = 0; frame < mFrames; ++frame) {
    for (uint32_t channel = 0; channel < mChannels; ++channel) {
      if (mAudioData[frame * mChannels + channel] != 0) {
        return true;
      }
    }
  }
  return false;
}

/* static */
already_AddRefed<AudioData>
AudioData::TransferAndUpdateTimestampAndDuration(AudioData* aOther,
                                                  int64_t aTimestamp,
                                                  int64_t aDuration)
{
  NS_ENSURE_TRUE(aOther, nullptr);
  RefPtr<AudioData> v = new AudioData(aOther->mOffset,
                                      aTimestamp,
                                      aDuration,
                                      aOther->mFrames,
                                      Move(aOther->mAudioData),
                                      aOther->mChannels,
                                      aOther->mRate);
  return v.forget();
}

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;
}

VideoData::VideoData(int64_t aOffset,
                     int64_t aTime,
                     int64_t aDuration,
                     bool aKeyframe,
                     int64_t aTimecode,
                     IntSize aDisplay,
                     layers::ImageContainer::FrameID aFrameID)
  : MediaData(VIDEO_DATA, aOffset, aTime, aDuration, 1)
  , mDisplay(aDisplay)
  , mFrameID(aFrameID)
  , mSentToCompositor(false)
{
  NS_ASSERTION(mDuration >= 0, "Frame must have non-negative duration.");
  mKeyframe = aKeyframe;
  mTimecode = aTimecode;
}

VideoData::~VideoData()
{
}

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;
}

/* static */
already_AddRefed<VideoData>
VideoData::ShallowCopyUpdateDuration(const VideoData* aOther,
                                     int64_t aDuration)
{
  RefPtr<VideoData> v = new VideoData(aOther->mOffset,
                                        aOther->mTime,
                                        aDuration,
                                        aOther->mKeyframe,
                                        aOther->mTimecode,
                                        aOther->mDisplay,
                                        aOther->mFrameID);
  v->mImage = aOther->mImage;
  return v.forget();
}

/* static */
already_AddRefed<VideoData>
VideoData::ShallowCopyUpdateTimestamp(const VideoData* aOther,
                                      int64_t aTimestamp)
{
  NS_ENSURE_TRUE(aOther, nullptr);
  RefPtr<VideoData> v = new VideoData(aOther->mOffset,
                                        aTimestamp,
                                        aOther->GetEndTime() - aTimestamp,
                                        aOther->mKeyframe,
                                        aOther->mTimecode,
                                        aOther->mDisplay,
                                        aOther->mFrameID);
  v->mImage = aOther->mImage;
  return v.forget();
}

/* static */
already_AddRefed<VideoData>
VideoData::ShallowCopyUpdateTimestampAndDuration(const VideoData* aOther,
                                                 int64_t aTimestamp,
                                                 int64_t aDuration)
{
  NS_ENSURE_TRUE(aOther, nullptr);
  RefPtr<VideoData> v = new VideoData(aOther->mOffset,
                                        aTimestamp,
                                        aDuration,
                                        aOther->mKeyframe,
                                        aOther->mTimecode,
                                        aOther->mDisplay,
                                        aOther->mFrameID);
  v->mImage = aOther->mImage;
  return v.forget();
}

/* static */
bool VideoData::SetVideoDataToImage(PlanarYCbCrImage* aVideoImage,
                                    const VideoInfo& aInfo,
                                    const YCbCrBuffer &aBuffer,
                                    const IntRect& aPicture,
                                    bool aCopyData)
{
  if (!aVideoImage) {
    return false;
  }
  const YCbCrBuffer::Plane &Y = aBuffer.mPlanes[0];
  const YCbCrBuffer::Plane &Cb = aBuffer.mPlanes[1];
  const YCbCrBuffer::Plane &Cr = aBuffer.mPlanes[2];

  PlanarYCbCrData data;
  data.mYChannel = Y.mData + Y.mOffset;
  data.mYSize = IntSize(Y.mWidth, Y.mHeight);
  data.mYStride = Y.mStride;
  data.mYSkip = Y.mSkip;
  data.mCbChannel = Cb.mData + Cb.mOffset;
  data.mCrChannel = Cr.mData + Cr.mOffset;
  data.mCbCrSize = IntSize(Cb.mWidth, Cb.mHeight);
  data.mCbCrStride = Cb.mStride;
  data.mCbSkip = Cb.mSkip;
  data.mCrSkip = Cr.mSkip;
  data.mPicX = aPicture.x;
  data.mPicY = aPicture.y;
  data.mPicSize = aPicture.Size();
  data.mStereoMode = aInfo.mStereoMode;
  data.mYUVColorSpace = aBuffer.mYUVColorSpace;
  data.mColorRange = aBuffer.mColorRange;

  aVideoImage->SetDelayedConversion(true);
  if (aCopyData) {
    return aVideoImage->CopyData(data);
  } else {
    return aVideoImage->AdoptData(data);
  }
}

/* static */
already_AddRefed<VideoData>
VideoData::CreateAndCopyData(const VideoInfo& aInfo,
                             ImageContainer* aContainer,
                             int64_t aOffset,
                             int64_t aTime,
                             int64_t aDuration,
                             const YCbCrBuffer& aBuffer,
                             bool aKeyframe,
                             int64_t 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();
  }

  // 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) {
    NS_ERROR("C planes with different sizes");
    return nullptr;
  }

  // The following situations could be triggered by invalid input
  if (aPicture.width <= 0 || aPicture.height <= 0) {
    // In debug mode, makes the error more noticeable
    MOZ_ASSERT(false, "Empty picture rect");
    return nullptr;
  }
  if (!ValidatePlane(aBuffer.mPlanes[0]) || !ValidatePlane(aBuffer.mPlanes[1]) ||
      !ValidatePlane(aBuffer.mPlanes[2])) {
    NS_WARNING("Invalid plane size");
    return nullptr;
  }

  // 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.
    NS_WARNING("Overflowing picture rect");
    return nullptr;
  }

  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 (!v->mImage) {
    v->mImage = aContainer->CreatePlanarYCbCrImage();
  }

  if (!v->mImage) {
    return nullptr;
  }
  NS_ASSERTION(v->mImage->GetFormat() == ImageFormat::PLANAR_YCBCR ||
               v->mImage->GetFormat() == ImageFormat::GRALLOC_PLANAR_YCBCR,
               "Wrong format?");
  PlanarYCbCrImage* videoImage = v->mImage->AsPlanarYCbCrImage();
  MOZ_ASSERT(videoImage);

  if (!VideoData::SetVideoDataToImage(videoImage, aInfo, aBuffer, aPicture,
                                      true /* aCopyData */)) {
    return nullptr;
  }

  return v.forget();
}

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

MediaRawData::MediaRawData()
  : MediaData(RAW_DATA, 0)
  , mCrypto(mCryptoInternal)
{
}

MediaRawData::MediaRawData(const uint8_t* aData, size_t aSize)
  : MediaData(RAW_DATA, 0)
  , mCrypto(mCryptoInternal)
  , mBuffer(aData, aSize)
{
}

already_AddRefed<MediaRawData>
MediaRawData::Clone() const
{
  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;
  if (!s->mBuffer.Append(mBuffer.Data(), mBuffer.Length())) {
    return nullptr;
  }
  return s.forget();
}

MediaRawData::~MediaRawData()
{
}

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

MediaRawDataWriter*
MediaRawData::CreateWriter()
{
  return new MediaRawDataWriter(this);
}

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::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();
}

} // namespace mozilla