update libwebm to libwebm-1.0.0.27-352-g6ab9fcf

https://chromium.googlesource.com/webm/libwebm/+log/af81f26..6ab9fcf

Change-Id: I9d56e1fbaba9b96404b4fbabefddc1a85b79c25d

11 files changed, 75 insertions, 29 deletions

diff --git a/third_party/libwebm/AUTHORS.TXT b/third_party/libwebm/AUTHORS.TXT
index 8ab6f794c..9686ac13e 100644
--- a/third_party/libwebm/AUTHORS.TXT
+++ b/third_party/libwebm/AUTHORS.TXT
@@ -1,4 +1,4 @@
-# Names should be added to this file like so:

-# Name or Organization <email address>

-

-Google Inc.

+# Names should be added to this file like so:
+# Name or Organization <email address>
+
+Google Inc.
diff --git a/third_party/libwebm/README.libvpx b/third_party/libwebm/README.libvpx
index 6d8b0b4cc..17b2f4715 100644
--- a/third_party/libwebm/README.libvpx
+++ b/third_party/libwebm/README.libvpx
@@ -1,5 +1,5 @@
 URL: https://chromium.googlesource.com/webm/libwebm
-Version: af81f26025b7435fa9a14ad07c58b44cf9280430
+Version: 9f23fbc50e7a76c815b1d3f0309abe1066301331
 License: BSD
 License File: LICENSE.txt
 
diff --git a/third_party/libwebm/common/file_util.cc b/third_party/libwebm/common/file_util.cc
index 618ffc087..e6109d5a0 100644
--- a/third_party/libwebm/common/file_util.cc
+++ b/third_party/libwebm/common/file_util.cc
@@ -46,7 +46,7 @@ std::string GetTempFileName() {
   errno_t err = tmpnam_s(tmp_file_name);
 #else
   char* fname_pointer = tmpnam(tmp_file_name);
-  errno_t err = (fname_pointer == &tmp_file_name[0]) ? 0 : -1;
+  int err = (fname_pointer == &tmp_file_name[0]) ? 0 : -1;
 #endif
   if (err == 0) {
     return std::string(tmp_file_name);
diff --git a/third_party/libwebm/common/webmids.h b/third_party/libwebm/common/webmids.h
index 89d722a71..fc0c20814 100644
--- a/third_party/libwebm/common/webmids.h
+++ b/third_party/libwebm/common/webmids.h
@@ -93,6 +93,7 @@ enum MkvId {
   kMkvDisplayHeight = 0x54BA,
   kMkvDisplayUnit = 0x54B2,
   kMkvAspectRatioType = 0x54B3,
+  kMkvColourSpace = 0x2EB524,
   kMkvFrameRate = 0x2383E3,
   // end video
   // colour
diff --git a/third_party/libwebm/mkvmuxer/mkvmuxer.cc b/third_party/libwebm/mkvmuxer/mkvmuxer.cc
index 481771db2..512031211 100644
--- a/third_party/libwebm/mkvmuxer/mkvmuxer.cc
+++ b/third_party/libwebm/mkvmuxer/mkvmuxer.cc
@@ -773,6 +773,14 @@ bool Track::Write(IMkvWriter* writer) const {
   if (!type_ || !codec_id_)
     return false;
 
+  // AV1 tracks require a CodecPrivate. See
+  // https://github.com/Matroska-Org/matroska-specification/blob/av1-mappin/codec/av1.md
+  // TODO(tomfinegan): Update the above link to the AV1 Matroska mappings to
+  // point to a stable version once it is finalized, or our own WebM mappings
+  // page on webmproject.org should we decide to release them.
+  if (!strcmp(codec_id_, Tracks::kAv1CodecId) && !codec_private_)
+    return false;
+
   // |size| may be bigger than what is written out in this function because
   // derived classes may write out more data in the Track element.
   const uint64_t payload_size = PayloadSize();
@@ -1027,19 +1035,16 @@ bool MasteringMetadata::Write(IMkvWriter* writer) const {
       !WriteEbmlElement(writer, libwebm::kMkvLuminanceMin, luminance_min_)) {
     return false;
   }
-  if (r_ &&
-      !r_->Write(writer, libwebm::kMkvPrimaryRChromaticityX,
-                 libwebm::kMkvPrimaryRChromaticityY)) {
+  if (r_ && !r_->Write(writer, libwebm::kMkvPrimaryRChromaticityX,
+                       libwebm::kMkvPrimaryRChromaticityY)) {
     return false;
   }
-  if (g_ &&
-      !g_->Write(writer, libwebm::kMkvPrimaryGChromaticityX,
-                 libwebm::kMkvPrimaryGChromaticityY)) {
+  if (g_ && !g_->Write(writer, libwebm::kMkvPrimaryGChromaticityX,
+                       libwebm::kMkvPrimaryGChromaticityY)) {
     return false;
   }
-  if (b_ &&
-      !b_->Write(writer, libwebm::kMkvPrimaryBChromaticityX,
-                 libwebm::kMkvPrimaryBChromaticityY)) {
+  if (b_ && !b_->Write(writer, libwebm::kMkvPrimaryBChromaticityX,
+                       libwebm::kMkvPrimaryBChromaticityY)) {
     return false;
   }
   if (white_point_ &&
@@ -1421,6 +1426,7 @@ VideoTrack::VideoTrack(unsigned int* seed)
       stereo_mode_(0),
       alpha_mode_(0),
       width_(0),
+      colour_space_(NULL),
       colour_(NULL),
       projection_(NULL) {}
 
@@ -1518,6 +1524,10 @@ bool VideoTrack::Write(IMkvWriter* writer) const {
                           static_cast<uint64>(alpha_mode_)))
       return false;
   }
+  if (colour_space_) {
+    if (!WriteEbmlElement(writer, libwebm::kMkvColourSpace, colour_space_))
+      return false;
+  }
   if (frame_rate_ > 0.0) {
     if (!WriteEbmlElement(writer, libwebm::kMkvFrameRate,
                           static_cast<float>(frame_rate_))) {
@@ -1542,6 +1552,22 @@ bool VideoTrack::Write(IMkvWriter* writer) const {
   return true;
 }
 
+void VideoTrack::set_colour_space(const char* colour_space) {
+  if (colour_space) {
+    delete[] colour_space_;
+
+    const size_t length = strlen(colour_space) + 1;
+    colour_space_ = new (std::nothrow) char[length];  // NOLINT
+    if (colour_space_) {
+#ifdef _MSC_VER
+      strcpy_s(colour_space_, length, colour_space);
+#else
+      strcpy(colour_space_, colour_space);
+#endif
+    }
+  }
+}
+
 bool VideoTrack::SetColour(const Colour& colour) {
   std::unique_ptr<Colour> colour_ptr(new Colour());
   if (!colour_ptr.get())
@@ -1625,6 +1651,8 @@ uint64_t VideoTrack::VideoPayloadSize() const {
   if (frame_rate_ > 0.0)
     size += EbmlElementSize(libwebm::kMkvFrameRate,
                             static_cast<float>(frame_rate_));
+  if (colour_space_)
+    size += EbmlElementSize(libwebm::kMkvColourSpace, colour_space_);
   if (colour_)
     size += colour_->ColourSize();
   if (projection_)
@@ -1702,9 +1730,9 @@ bool AudioTrack::Write(IMkvWriter* writer) const {
 
 const char Tracks::kOpusCodecId[] = "A_OPUS";
 const char Tracks::kVorbisCodecId[] = "A_VORBIS";
+const char Tracks::kAv1CodecId[] = "V_AV1";
 const char Tracks::kVp8CodecId[] = "V_VP8";
 const char Tracks::kVp9CodecId[] = "V_VP9";
-const char Tracks::kVp10CodecId[] = "V_VP10";
 const char Tracks::kWebVttCaptionsId[] = "D_WEBVTT/CAPTIONS";
 const char Tracks::kWebVttDescriptionsId[] = "D_WEBVTT/DESCRIPTIONS";
 const char Tracks::kWebVttMetadataId[] = "D_WEBVTT/METADATA";
@@ -4165,8 +4193,8 @@ bool Segment::DocTypeIsWebm() const {
   // TODO(vigneshv): Tweak .clang-format.
   const char* kWebmCodecIds[kNumCodecIds] = {
       Tracks::kOpusCodecId,          Tracks::kVorbisCodecId,
-      Tracks::kVp8CodecId,           Tracks::kVp9CodecId,
-      Tracks::kVp10CodecId,          Tracks::kWebVttCaptionsId,
+      Tracks::kAv1CodecId,           Tracks::kVp8CodecId,
+      Tracks::kVp9CodecId,           Tracks::kWebVttCaptionsId,
       Tracks::kWebVttDescriptionsId, Tracks::kWebVttMetadataId,
       Tracks::kWebVttSubtitlesId};
 
diff --git a/third_party/libwebm/mkvmuxer/mkvmuxer.h b/third_party/libwebm/mkvmuxer/mkvmuxer.h
index 46b0029dc..f2db37714 100644
--- a/third_party/libwebm/mkvmuxer/mkvmuxer.h
+++ b/third_party/libwebm/mkvmuxer/mkvmuxer.h
@@ -795,6 +795,8 @@ class VideoTrack : public Track {
   uint64_t alpha_mode() { return alpha_mode_; }
   void set_width(uint64_t width) { width_ = width; }
   uint64_t width() const { return width_; }
+  void set_colour_space(const char* colour_space);
+  const char* colour_space() const { return colour_space_; }
 
   Colour* colour() { return colour_; }
 
@@ -824,6 +826,7 @@ class VideoTrack : public Track {
   uint64_t stereo_mode_;
   uint64_t alpha_mode_;
   uint64_t width_;
+  char* colour_space_;
 
   Colour* colour_;
   Projection* projection_;
@@ -871,9 +874,9 @@ class Tracks {
 
   static const char kOpusCodecId[];
   static const char kVorbisCodecId[];
+  static const char kAv1CodecId[];
   static const char kVp8CodecId[];
   static const char kVp9CodecId[];
-  static const char kVp10CodecId[];
   static const char kWebVttCaptionsId[];
   static const char kWebVttDescriptionsId[];
   static const char kWebVttMetadataId[];
diff --git a/third_party/libwebm/mkvmuxer/mkvmuxerutil.cc b/third_party/libwebm/mkvmuxer/mkvmuxerutil.cc
index 355d4e22b..3bff7cd51 100644
--- a/third_party/libwebm/mkvmuxer/mkvmuxerutil.cc
+++ b/third_party/libwebm/mkvmuxer/mkvmuxerutil.cc
@@ -136,9 +136,8 @@ uint64 WriteBlock(IMkvWriter* writer, const Frame* const frame, int64 timecode,
     return false;
   }
 
-  if (!frame->is_key() &&
-      !WriteEbmlElement(writer, libwebm::kMkvReferenceBlock,
-                        reference_block_timestamp)) {
+  if (!frame->is_key() && !WriteEbmlElement(writer, libwebm::kMkvReferenceBlock,
+                                            reference_block_timestamp)) {
     return false;
   }
 
diff --git a/third_party/libwebm/mkvmuxer/mkvwriter.cc b/third_party/libwebm/mkvmuxer/mkvwriter.cc
index 84655d802..d668384d8 100644
--- a/third_party/libwebm/mkvmuxer/mkvwriter.cc
+++ b/third_party/libwebm/mkvmuxer/mkvwriter.cc
@@ -78,6 +78,8 @@ int32 MkvWriter::Position(int64 position) {
 
 #ifdef _MSC_VER
   return _fseeki64(file_, position, SEEK_SET);
+#elif defined(_WIN32)
+  return fseeko64(file_, static_cast<off_t>(position), SEEK_SET);
 #else
   return fseeko(file_, static_cast<off_t>(position), SEEK_SET);
 #endif
diff --git a/third_party/libwebm/mkvparser/mkvparser.cc b/third_party/libwebm/mkvparser/mkvparser.cc
index e7b76f7da..9c78ead2b 100644
--- a/third_party/libwebm/mkvparser/mkvparser.cc
+++ b/third_party/libwebm/mkvparser/mkvparser.cc
@@ -36,8 +36,6 @@ inline bool isnan(double val) { return std::isnan(val); }
 inline bool isinf(double val) { return std::isinf(val); }
 #endif  // MSC_COMPAT
 
-IMkvReader::~IMkvReader() {}
-
 template <typename Type>
 Type* SafeArrayAlloc(unsigned long long num_elements,
                      unsigned long long element_size) {
@@ -5274,6 +5272,7 @@ bool Projection::Parse(IMkvReader* reader, long long start, long long size,
 VideoTrack::VideoTrack(Segment* pSegment, long long element_start,
                        long long element_size)
     : Track(pSegment, element_start, element_size),
+      m_colour_space(NULL),
       m_colour(NULL),
       m_projection(NULL) {}
 
@@ -5299,6 +5298,7 @@ long VideoTrack::Parse(Segment* pSegment, const Info& info,
   long long stereo_mode = 0;
 
   double rate = 0.0;
+  char* colour_space = NULL;
 
   IMkvReader* const pReader = pSegment->m_pReader;
 
@@ -5312,7 +5312,7 @@ long VideoTrack::Parse(Segment* pSegment, const Info& info,
   const long long stop = pos + s.size;
 
   Colour* colour = NULL;
-  Projection* projection = NULL;
+  std::unique_ptr<Projection> projection_ptr;
 
   while (pos < stop) {
     long long id, size;
@@ -5364,8 +5364,16 @@ long VideoTrack::Parse(Segment* pSegment, const Info& info,
       if (!Colour::Parse(pReader, pos, size, &colour))
         return E_FILE_FORMAT_INVALID;
     } else if (id == libwebm::kMkvProjection) {
-      if (!Projection::Parse(pReader, pos, size, &projection))
+      Projection* projection = NULL;
+      if (!Projection::Parse(pReader, pos, size, &projection)) {
         return E_FILE_FORMAT_INVALID;
+      } else {
+        projection_ptr.reset(projection);
+      }
+    } else if (id == libwebm::kMkvColourSpace) {
+      const long status = UnserializeString(pReader, pos, size, colour_space);
+      if (status < 0)
+        return status;
     }
 
     pos += size;  // consume payload
@@ -5397,7 +5405,8 @@ long VideoTrack::Parse(Segment* pSegment, const Info& info,
   pTrack->m_stereo_mode = stereo_mode;
   pTrack->m_rate = rate;
   pTrack->m_colour = colour;
-  pTrack->m_projection = projection;
+  pTrack->m_colour_space = colour_space;
+  pTrack->m_projection = projection_ptr.release();
 
   pResult = pTrack;
   return 0;  // success
diff --git a/third_party/libwebm/mkvparser/mkvparser.h b/third_party/libwebm/mkvparser/mkvparser.h
index 26c2b7e5e..848d01f03 100644
--- a/third_party/libwebm/mkvparser/mkvparser.h
+++ b/third_party/libwebm/mkvparser/mkvparser.h
@@ -22,7 +22,7 @@ class IMkvReader {
   virtual int Length(long long* total, long long* available) = 0;
 
  protected:
-  virtual ~IMkvReader();
+  virtual ~IMkvReader() {}
 };
 
 template <typename Type>
@@ -527,6 +527,8 @@ class VideoTrack : public Track {
 
   Projection* GetProjection() const;
 
+  const char* GetColourSpace() const { return m_colour_space; }
+
  private:
   long long m_width;
   long long m_height;
@@ -534,7 +536,7 @@ class VideoTrack : public Track {
   long long m_display_height;
   long long m_display_unit;
   long long m_stereo_mode;
-
+  char* m_colour_space;
   double m_rate;
 
   Colour* m_colour;
diff --git a/third_party/libwebm/mkvparser/mkvreader.cc b/third_party/libwebm/mkvparser/mkvreader.cc
index 23d68f508..9d19c1be5 100644
--- a/third_party/libwebm/mkvparser/mkvreader.cc
+++ b/third_party/libwebm/mkvparser/mkvreader.cc
@@ -118,6 +118,8 @@ int MkvReader::Read(long long offset, long len, unsigned char* buffer) {
 
   if (status)
     return -1;  // error
+#elif defined(_WIN32)
+  fseeko64(m_file, static_cast<off_t>(offset), SEEK_SET);
 #else
   fseeko(m_file, static_cast<off_t>(offset), SEEK_SET);
 #endif