diff options
Diffstat (limited to 'media/libaom/src/third_party/libwebm/common/hdr_util.cc')
| -rw-r--r-- | media/libaom/src/third_party/libwebm/common/hdr_util.cc | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/media/libaom/src/third_party/libwebm/common/hdr_util.cc b/media/libaom/src/third_party/libwebm/common/hdr_util.cc new file mode 100644 index 000000000..916f7170b --- /dev/null +++ b/media/libaom/src/third_party/libwebm/common/hdr_util.cc @@ -0,0 +1,220 @@ +// Copyright (c) 2016 The WebM project authors. All Rights Reserved. +// +// Use of this source code is governed by a BSD-style license +// that can be found in the LICENSE file in the root of the source +// tree. An additional intellectual property rights grant can be found +// in the file PATENTS. All contributing project authors may +// be found in the AUTHORS file in the root of the source tree. +#include "hdr_util.h" + +#include <climits> +#include <cstddef> +#include <new> + +#include "mkvparser/mkvparser.h" + +namespace libwebm { +const int Vp9CodecFeatures::kValueNotPresent = INT_MAX; + +bool CopyPrimaryChromaticity(const mkvparser::PrimaryChromaticity& parser_pc, + PrimaryChromaticityPtr* muxer_pc) { + muxer_pc->reset(new (std::nothrow) + mkvmuxer::PrimaryChromaticity(parser_pc.x, parser_pc.y)); + if (!muxer_pc->get()) + return false; + return true; +} + +bool MasteringMetadataValuePresent(double value) { + return value != mkvparser::MasteringMetadata::kValueNotPresent; +} + +bool CopyMasteringMetadata(const mkvparser::MasteringMetadata& parser_mm, + mkvmuxer::MasteringMetadata* muxer_mm) { + if (MasteringMetadataValuePresent(parser_mm.luminance_max)) + muxer_mm->set_luminance_max(parser_mm.luminance_max); + if (MasteringMetadataValuePresent(parser_mm.luminance_min)) + muxer_mm->set_luminance_min(parser_mm.luminance_min); + + PrimaryChromaticityPtr r_ptr(nullptr); + PrimaryChromaticityPtr g_ptr(nullptr); + PrimaryChromaticityPtr b_ptr(nullptr); + PrimaryChromaticityPtr wp_ptr(nullptr); + + if (parser_mm.r) { + if (!CopyPrimaryChromaticity(*parser_mm.r, &r_ptr)) + return false; + } + if (parser_mm.g) { + if (!CopyPrimaryChromaticity(*parser_mm.g, &g_ptr)) + return false; + } + if (parser_mm.b) { + if (!CopyPrimaryChromaticity(*parser_mm.b, &b_ptr)) + return false; + } + if (parser_mm.white_point) { + if (!CopyPrimaryChromaticity(*parser_mm.white_point, &wp_ptr)) + return false; + } + + if (!muxer_mm->SetChromaticity(r_ptr.get(), g_ptr.get(), b_ptr.get(), + wp_ptr.get())) { + return false; + } + + return true; +} + +bool ColourValuePresent(long long value) { + return value != mkvparser::Colour::kValueNotPresent; +} + +bool CopyColour(const mkvparser::Colour& parser_colour, + mkvmuxer::Colour* muxer_colour) { + if (!muxer_colour) + return false; + + if (ColourValuePresent(parser_colour.matrix_coefficients)) + muxer_colour->set_matrix_coefficients(parser_colour.matrix_coefficients); + if (ColourValuePresent(parser_colour.bits_per_channel)) + muxer_colour->set_bits_per_channel(parser_colour.bits_per_channel); + if (ColourValuePresent(parser_colour.chroma_subsampling_horz)) { + muxer_colour->set_chroma_subsampling_horz( + parser_colour.chroma_subsampling_horz); + } + if (ColourValuePresent(parser_colour.chroma_subsampling_vert)) { + muxer_colour->set_chroma_subsampling_vert( + parser_colour.chroma_subsampling_vert); + } + if (ColourValuePresent(parser_colour.cb_subsampling_horz)) + muxer_colour->set_cb_subsampling_horz(parser_colour.cb_subsampling_horz); + if (ColourValuePresent(parser_colour.cb_subsampling_vert)) + muxer_colour->set_cb_subsampling_vert(parser_colour.cb_subsampling_vert); + if (ColourValuePresent(parser_colour.chroma_siting_horz)) + muxer_colour->set_chroma_siting_horz(parser_colour.chroma_siting_horz); + if (ColourValuePresent(parser_colour.chroma_siting_vert)) + muxer_colour->set_chroma_siting_vert(parser_colour.chroma_siting_vert); + if (ColourValuePresent(parser_colour.range)) + muxer_colour->set_range(parser_colour.range); + if (ColourValuePresent(parser_colour.transfer_characteristics)) { + muxer_colour->set_transfer_characteristics( + parser_colour.transfer_characteristics); + } + if (ColourValuePresent(parser_colour.primaries)) + muxer_colour->set_primaries(parser_colour.primaries); + if (ColourValuePresent(parser_colour.max_cll)) + muxer_colour->set_max_cll(parser_colour.max_cll); + if (ColourValuePresent(parser_colour.max_fall)) + muxer_colour->set_max_fall(parser_colour.max_fall); + + if (parser_colour.mastering_metadata) { + mkvmuxer::MasteringMetadata muxer_mm; + if (!CopyMasteringMetadata(*parser_colour.mastering_metadata, &muxer_mm)) + return false; + if (!muxer_colour->SetMasteringMetadata(muxer_mm)) + return false; + } + return true; +} + +// Format of VPx private data: +// +// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +// | ID Byte | Length | | +// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | +// | | +// : Bytes 1..Length of Codec Feature : +// | | +// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +// +// ID Byte Format +// ID byte is an unsigned byte. +// 0 1 2 3 4 5 6 7 +// +-+-+-+-+-+-+-+-+ +// |X| ID | +// +-+-+-+-+-+-+-+-+ +// +// The X bit is reserved. +// +// See the following link for more information: +// http://www.webmproject.org/vp9/profiles/ +bool ParseVpxCodecPrivate(const uint8_t* private_data, int32_t length, + Vp9CodecFeatures* features) { + const int kVpxCodecPrivateMinLength = 3; + if (!private_data || !features || length < kVpxCodecPrivateMinLength) + return false; + + const uint8_t kVp9ProfileId = 1; + const uint8_t kVp9LevelId = 2; + const uint8_t kVp9BitDepthId = 3; + const uint8_t kVp9ChromaSubsamplingId = 4; + const int kVpxFeatureLength = 1; + int offset = 0; + + // Set features to not set. + features->profile = Vp9CodecFeatures::kValueNotPresent; + features->level = Vp9CodecFeatures::kValueNotPresent; + features->bit_depth = Vp9CodecFeatures::kValueNotPresent; + features->chroma_subsampling = Vp9CodecFeatures::kValueNotPresent; + do { + const uint8_t id_byte = private_data[offset++]; + const uint8_t length_byte = private_data[offset++]; + if (length_byte != kVpxFeatureLength) + return false; + if (id_byte == kVp9ProfileId) { + const int priv_profile = static_cast<int>(private_data[offset++]); + if (priv_profile < 0 || priv_profile > 3) + return false; + if (features->profile != Vp9CodecFeatures::kValueNotPresent && + features->profile != priv_profile) { + return false; + } + features->profile = priv_profile; + } else if (id_byte == kVp9LevelId) { + const int priv_level = static_cast<int>(private_data[offset++]); + + const int kNumLevels = 14; + const int levels[kNumLevels] = {10, 11, 20, 21, 30, 31, 40, + 41, 50, 51, 52, 60, 61, 62}; + + for (int i = 0; i < kNumLevels; ++i) { + if (priv_level == levels[i]) { + if (features->level != Vp9CodecFeatures::kValueNotPresent && + features->level != priv_level) { + return false; + } + features->level = priv_level; + break; + } + } + if (features->level == Vp9CodecFeatures::kValueNotPresent) + return false; + } else if (id_byte == kVp9BitDepthId) { + const int priv_profile = static_cast<int>(private_data[offset++]); + if (priv_profile != 8 && priv_profile != 10 && priv_profile != 12) + return false; + if (features->bit_depth != Vp9CodecFeatures::kValueNotPresent && + features->bit_depth != priv_profile) { + return false; + } + features->bit_depth = priv_profile; + } else if (id_byte == kVp9ChromaSubsamplingId) { + const int priv_profile = static_cast<int>(private_data[offset++]); + if (priv_profile != 0 && priv_profile != 2 && priv_profile != 3) + return false; + if (features->chroma_subsampling != Vp9CodecFeatures::kValueNotPresent && + features->chroma_subsampling != priv_profile) { + return false; + } + features->chroma_subsampling = priv_profile; + } else { + // Invalid ID. + return false; + } + } while (offset + kVpxCodecPrivateMinLength <= length); + + return true; +} +} // namespace libwebm |