diff options
Diffstat (limited to 'third_party/libwebm/mkvparser/mkvparser.cc')
| -rw-r--r-- | third_party/libwebm/mkvparser/mkvparser.cc | 112 |
1 files changed, 97 insertions, 15 deletions
diff --git a/third_party/libwebm/mkvparser/mkvparser.cc b/third_party/libwebm/mkvparser/mkvparser.cc index 21801154d..d92637b75 100644 --- a/third_party/libwebm/mkvparser/mkvparser.cc +++ b/third_party/libwebm/mkvparser/mkvparser.cc @@ -25,6 +25,7 @@ namespace mkvparser { const float MasteringMetadata::kValueNotPresent = FLT_MAX; const long long Colour::kValueNotPresent = LLONG_MAX; +const float Projection::kValueNotPresent = FLT_MAX; #ifdef MSC_COMPAT inline bool isnan(double val) { return !!_isnan(val); } @@ -1475,6 +1476,8 @@ long Segment::Load() { } } +SeekHead::Entry::Entry() : id(0), pos(0), element_start(0), element_size(0) {} + SeekHead::SeekHead(Segment* pSegment, long long start, long long size_, long long element_start, long long element_size) : m_pSegment(pSegment), @@ -1766,18 +1769,7 @@ bool SeekHead::ParseEntry(IMkvReader* pReader, long long start, long long size_, if ((pos + seekIdSize) > stop) return false; - // Note that the SeekId payload really is serialized - // as a "Matroska integer", not as a plain binary value. - // In fact, Matroska requires that ID values in the - // stream exactly match the binary representation as listed - // in the Matroska specification. - // - // This parser is more liberal, and permits IDs to have - // any width. (This could make the representation in the stream - // different from what's in the spec, but it doesn't matter here, - // since we always normalize "Matroska integer" values.) - - pEntry->id = ReadUInt(pReader, pos, len); // payload + pEntry->id = ReadID(pReader, pos, len); // payload if (pEntry->id <= 0) return false; @@ -5188,11 +5180,92 @@ bool Colour::Parse(IMkvReader* reader, long long colour_start, return true; } +bool Projection::Parse(IMkvReader* reader, long long start, long long size, + Projection** projection) { + if (!reader || *projection) + return false; + + std::auto_ptr<Projection> projection_ptr(new Projection()); + if (!projection_ptr.get()) + return false; + + const long long end = start + size; + long long read_pos = start; + + while (read_pos < end) { + long long child_id = 0; + long long child_size = 0; + + const long long status = + ParseElementHeader(reader, read_pos, end, child_id, child_size); + if (status < 0) + return false; + + if (child_id == libwebm::kMkvProjectionType) { + long long projection_type = kTypeNotPresent; + projection_type = UnserializeUInt(reader, read_pos, child_size); + if (projection_type < 0) + return false; + + projection_ptr->type = static_cast<ProjectionType>(projection_type); + } else if (child_id == libwebm::kMkvProjectionPrivate) { + unsigned char* data = SafeArrayAlloc<unsigned char>(1, child_size); + + if (data == NULL) + return false; + + const int status = + reader->Read(read_pos, static_cast<long>(child_size), data); + + if (status) { + delete[] data; + return status; + } + + projection_ptr->private_data = data; + projection_ptr->private_data_length = static_cast<size_t>(child_size); + } else { + double value = 0; + const long long value_parse_status = + UnserializeFloat(reader, read_pos, child_size, value); + if (value_parse_status < 0) { + return false; + } + + switch (child_id) { + case libwebm::kMkvProjectionPoseYaw: + projection_ptr->pose_yaw = static_cast<float>(value); + break; + case libwebm::kMkvProjectionPosePitch: + projection_ptr->pose_pitch = static_cast<float>(value); + break; + case libwebm::kMkvProjectionPoseRoll: + projection_ptr->pose_roll = static_cast<float>(value); + break; + default: + return false; + } + } + + read_pos += child_size; + if (read_pos > end) + return false; + } + + *projection = projection_ptr.release(); + return true; +} + VideoTrack::VideoTrack(Segment* pSegment, long long element_start, long long element_size) - : Track(pSegment, element_start, element_size), m_colour(NULL) {} + : Track(pSegment, element_start, element_size), + m_colour(NULL), + m_projection(NULL) {} -VideoTrack::~VideoTrack() { delete m_colour; } +VideoTrack::~VideoTrack() { + delete m_colour; + delete m_projection; +} long VideoTrack::Parse(Segment* pSegment, const Info& info, long long element_start, long long element_size, @@ -5224,6 +5297,7 @@ long VideoTrack::Parse(Segment* pSegment, const Info& info, const long long stop = pos + s.size; Colour* colour = NULL; + Projection* projection = NULL; while (pos < stop) { long long id, size; @@ -5274,6 +5348,9 @@ long VideoTrack::Parse(Segment* pSegment, const Info& info, } else if (id == libwebm::kMkvColour) { if (!Colour::Parse(pReader, pos, size, &colour)) return E_FILE_FORMAT_INVALID; + } else if (id == libwebm::kMkvProjection) { + if (!Projection::Parse(pReader, pos, size, &projection)) + return E_FILE_FORMAT_INVALID; } pos += size; // consume payload @@ -5305,6 +5382,7 @@ 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; pResult = pTrack; return 0; // success @@ -5405,6 +5483,8 @@ long VideoTrack::Seek(long long time_ns, const BlockEntry*& pResult) const { Colour* VideoTrack::GetColour() const { return m_colour; } +Projection* VideoTrack::GetProjection() const { return m_projection; } + long long VideoTrack::GetWidth() const { return m_width; } long long VideoTrack::GetHeight() const { return m_height; } @@ -6698,8 +6778,10 @@ Cluster::Cluster(Segment* pSegment, long idx, long long element_start {} Cluster::~Cluster() { - if (m_entries_count <= 0) + if (m_entries_count <= 0) { + delete[] m_entries; return; + } BlockEntry** i = m_entries; BlockEntry** const j = m_entries + m_entries_count; |