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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROMECAST_PUBLIC_MEDIA_DECODER_CONFIG_H_
#define CHROMECAST_PUBLIC_MEDIA_DECODER_CONFIG_H_
#include <stdint.h>
#include <vector>
#include "cast_decrypt_config.h"
#include "stream_id.h"
namespace chromecast {
namespace media {
// Maximum audio bytes per sample.
static const int kMaxBytesPerSample = 4;
// Maximum audio sampling rate.
static const int kMaxSampleRate = 192000;
// TODO(guohuideng): change at least AudioCodec and SampleFormat to enum class.
enum AudioCodec : int {
kAudioCodecUnknown = 0,
kCodecAAC,
kCodecMP3,
kCodecPCM,
kCodecPCM_S16BE,
kCodecVorbis,
kCodecOpus,
kCodecEAC3,
kCodecAC3,
kCodecDTS,
kCodecFLAC,
kCodecMpegHAudio,
kAudioCodecMin = kAudioCodecUnknown,
kAudioCodecMax = kCodecMpegHAudio,
};
enum class ChannelLayout {
UNSUPPORTED,
// Front C
MONO,
// Front L, Front R
STEREO,
// Front L, Front R, Front C, LFE, Side L, Side R
SURROUND_5_1,
// Actual channel layout is specified in the bitstream and the actual channel
// count is unknown at Chromium media pipeline level (useful for audio
// pass-through mode).
BITSTREAM,
// Channels are not explicitly mapped to speakers.
DISCRETE,
// Max value, must always equal the largest entry ever logged.
MAX_LAST = DISCRETE,
};
// Internal chromecast apps use this to decide on channel_layout.
inline ChannelLayout ChannelLayoutFromChannelNumber(int channel_number) {
switch (channel_number) {
case 1:
return ChannelLayout::MONO;
case 2:
return ChannelLayout::STEREO;
case 6:
return ChannelLayout::SURROUND_5_1;
default:
return ChannelLayout::UNSUPPORTED;
}
}
enum SampleFormat : int {
kUnknownSampleFormat = 0,
kSampleFormatU8, // Unsigned 8-bit w/ bias of 128.
kSampleFormatS16, // Signed 16-bit.
kSampleFormatS32, // Signed 32-bit.
kSampleFormatF32, // Float 32-bit.
kSampleFormatPlanarS16, // Signed 16-bit planar.
kSampleFormatPlanarF32, // Float 32-bit planar.
kSampleFormatPlanarS32, // Signed 32-bit planar.
kSampleFormatS24, // Signed 24-bit.
kSampleFormatMin = kUnknownSampleFormat,
kSampleFormatMax = kSampleFormatS24,
};
enum VideoCodec : int {
kVideoCodecUnknown = 0,
kCodecH264,
kCodecVC1,
kCodecMPEG2,
kCodecMPEG4,
kCodecTheora,
kCodecVP8,
kCodecVP9,
kCodecHEVC,
kCodecDolbyVisionH264,
kCodecDolbyVisionHEVC,
kCodecAV1,
kVideoCodecMin = kVideoCodecUnknown,
kVideoCodecMax = kCodecAV1,
};
// Profile for Video codec.
enum VideoProfile : int {
kVideoProfileUnknown = 0,
kH264Baseline,
kH264Main,
kH264Extended,
kH264High,
kH264High10,
kH264High422,
kH264High444Predictive,
kH264ScalableBaseline,
kH264ScalableHigh,
kH264StereoHigh,
kH264MultiviewHigh,
kVP8ProfileAny,
kVP9Profile0,
kVP9Profile1,
kVP9Profile2,
kVP9Profile3,
kDolbyVisionCompatible_EL_MD,
kDolbyVisionCompatible_BL_EL_MD,
kDolbyVisionNonCompatible_BL_MD,
kDolbyVisionNonCompatible_BL_EL_MD,
kHEVCMain,
kHEVCMain10,
kHEVCMainStillPicture,
kAV1ProfileMain,
kAV1ProfileHigh,
kAV1ProfilePro,
kVideoProfileMin = kVideoProfileUnknown,
kVideoProfileMax = kAV1ProfilePro,
};
struct CodecProfileLevel {
VideoCodec codec;
VideoProfile profile;
int level;
};
// ---- Begin copy/paste from //media/base/video_color_space.h ----
// Described in ISO 23001-8:2016
// Table 2
enum class PrimaryID : uint8_t {
INVALID = 0,
BT709 = 1,
UNSPECIFIED = 2,
BT470M = 4,
BT470BG = 5,
SMPTE170M = 6,
SMPTE240M = 7,
FILM = 8,
BT2020 = 9,
SMPTEST428_1 = 10,
SMPTEST431_2 = 11,
SMPTEST432_1 = 12,
EBU_3213_E = 22
};
// Table 3
enum class TransferID : uint8_t {
INVALID = 0,
BT709 = 1,
UNSPECIFIED = 2,
GAMMA22 = 4,
GAMMA28 = 5,
SMPTE170M = 6,
SMPTE240M = 7,
LINEAR = 8,
LOG = 9,
LOG_SQRT = 10,
IEC61966_2_4 = 11,
BT1361_ECG = 12,
IEC61966_2_1 = 13,
BT2020_10 = 14,
BT2020_12 = 15,
SMPTEST2084 = 16,
SMPTEST428_1 = 17,
// Not yet standardized
ARIB_STD_B67 = 18, // AKA hybrid-log gamma, HLG.
};
// Table 4
enum class MatrixID : uint8_t {
RGB = 0,
BT709 = 1,
UNSPECIFIED = 2,
FCC = 4,
BT470BG = 5,
SMPTE170M = 6,
SMPTE240M = 7,
YCOCG = 8,
BT2020_NCL = 9,
BT2020_CL = 10,
YDZDX = 11,
INVALID = 255,
};
// ---- End copy/pasted from media/base/video_color_space.h ----
// This corresponds to the WebM Range enum which is part of WebM color data
// (see http://www.webmproject.org/docs/container/#Range).
// H.264 only uses a bool, which corresponds to the LIMITED/FULL values.
// ---- Begin copy/paste from //ui/gfx/color_space.h ----
enum class RangeID : int8_t {
INVALID = 0,
// Limited Rec. 709 color range with RGB values ranging from 16 to 235.
LIMITED = 1,
// Full RGB color range with RGB valees from 0 to 255.
FULL = 2,
// Range is defined by TransferID/MatrixID.
DERIVED = 3,
LAST = DERIVED
};
// ---- Begin copy/paste from //ui/gfx/color_space.h ----
// ---- Begin copy/paste from media/base/hdr_metadata.h ----
// SMPTE ST 2086 mastering metadata.
struct MasteringMetadata {
float primary_r_chromaticity_x = 0;
float primary_r_chromaticity_y = 0;
float primary_g_chromaticity_x = 0;
float primary_g_chromaticity_y = 0;
float primary_b_chromaticity_x = 0;
float primary_b_chromaticity_y = 0;
float white_point_chromaticity_x = 0;
float white_point_chromaticity_y = 0;
float luminance_max = 0;
float luminance_min = 0;
MasteringMetadata();
MasteringMetadata(const MasteringMetadata& rhs);
};
// HDR metadata common for HDR10 and WebM/VP9-based HDR formats.
struct HDRMetadata {
MasteringMetadata mastering_metadata;
unsigned max_content_light_level = 0;
unsigned max_frame_average_light_level = 0;
HDRMetadata();
HDRMetadata(const HDRMetadata& rhs);
};
inline MasteringMetadata::MasteringMetadata() {}
inline MasteringMetadata::MasteringMetadata(const MasteringMetadata& rhs) =
default;
inline HDRMetadata::HDRMetadata() {}
inline HDRMetadata::HDRMetadata(const HDRMetadata& rhs) = default;
// ---- End copy/paste from media/base/hdr_metadata.h ----
constexpr int kChannelAll = -1;
// TODO(erickung): Remove constructor once CMA backend implementation doesn't
// create a new object to reset the configuration and use IsValidConfig() to
// determine if the configuration is still valid or not.
struct AudioConfig {
AudioConfig();
AudioConfig(const AudioConfig& other);
~AudioConfig();
bool is_encrypted() const {
return encryption_scheme != EncryptionScheme::kUnencrypted;
}
// Stream id.
StreamId id;
// Audio codec.
AudioCodec codec;
// Audio channel layout.
ChannelLayout channel_layout;
// The format of each audio sample.
SampleFormat sample_format;
// Number of bytes in each channel.
int bytes_per_channel;
// Number of channels in this audio stream.
int channel_number;
// Number of audio samples per second.
int samples_per_second;
// Extra data buffer for certain codec initialization.
std::vector<uint8_t> extra_data;
// Encryption scheme (if any) used for the content.
EncryptionScheme encryption_scheme;
};
inline AudioConfig::AudioConfig()
: id(kPrimary),
codec(kAudioCodecUnknown),
channel_layout(ChannelLayout::UNSUPPORTED),
sample_format(kUnknownSampleFormat),
bytes_per_channel(0),
channel_number(0),
samples_per_second(0),
encryption_scheme(EncryptionScheme::kUnencrypted) {}
inline AudioConfig::AudioConfig(const AudioConfig& other) = default;
inline AudioConfig::~AudioConfig() {
}
// TODO(erickung): Remove constructor once CMA backend implementation does't
// create a new object to reset the configuration and use IsValidConfig() to
// determine if the configuration is still valid or not.
struct VideoConfig {
VideoConfig();
VideoConfig(const VideoConfig& other);
~VideoConfig();
bool is_encrypted() const {
return encryption_scheme != EncryptionScheme::kUnencrypted;
}
// Stream Id.
StreamId id;
// Video codec.
VideoCodec codec;
// Video codec profile.
VideoProfile profile;
// Additional video config for the video stream if available. Consumers of
// this structure should make an explicit copy of |additional_config| if it
// will be used after SetConfig() finishes.
VideoConfig* additional_config;
// Extra data buffer for certain codec initialization.
std::vector<uint8_t> extra_data;
// Encryption scheme (if any) used for the content.
EncryptionScheme encryption_scheme;
// ColorSpace info
PrimaryID primaries = PrimaryID::UNSPECIFIED;
TransferID transfer = TransferID::UNSPECIFIED;
MatrixID matrix = MatrixID::UNSPECIFIED;
RangeID range = RangeID::INVALID;
bool have_hdr_metadata = false;
HDRMetadata hdr_metadata;
};
inline VideoConfig::VideoConfig()
: id(kPrimary),
codec(kVideoCodecUnknown),
profile(kVideoProfileUnknown),
additional_config(nullptr),
encryption_scheme(EncryptionScheme::kUnencrypted) {}
inline VideoConfig::VideoConfig(const VideoConfig& other) = default;
inline VideoConfig::~VideoConfig() {
}
inline bool IsValidConfig(const AudioConfig& config) {
return config.codec >= kAudioCodecMin && config.codec <= kAudioCodecMax &&
config.codec != kAudioCodecUnknown &&
config.channel_layout != ChannelLayout::UNSUPPORTED &&
config.sample_format >= kSampleFormatMin &&
config.sample_format <= kSampleFormatMax &&
((config.sample_format != kUnknownSampleFormat &&
config.channel_number > 0 && config.bytes_per_channel > 0 &&
config.bytes_per_channel <= kMaxBytesPerSample) ||
config.channel_layout == ChannelLayout::BITSTREAM) &&
config.samples_per_second > 0 &&
config.samples_per_second <= kMaxSampleRate;
}
inline bool IsValidConfig(const VideoConfig& config) {
return config.codec >= kVideoCodecMin &&
config.codec <= kVideoCodecMax &&
config.codec != kVideoCodecUnknown;
}
} // namespace media
} // namespace chromecast
#endif // CHROMECAST_PUBLIC_MEDIA_DECODER_CONFIG_H_