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// Copyright 2017 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.
#include "media/base/decode_capabilities.h"
#include "base/command_line.h"
#include "base/feature_list.h"
#include "media/base/media_switches.h"
#include "ui/display/display_switches.h"
#if !defined(MEDIA_DISABLE_LIBVPX)
// VPX_CODEC_DISABLE_COMPAT excludes parts of the libvpx API that provide
// backwards compatibility for legacy applications using the library.
#define VPX_CODEC_DISABLE_COMPAT 1
extern "C" {
#include "third_party/libvpx/source/libvpx/vpx/vp8dx.h"
#include "third_party/libvpx/source/libvpx/vpx/vpx_codec.h"
}
#endif
namespace media {
bool IsColorSpaceSupported(const media::VideoColorSpace& color_space) {
bool color_management =
base::CommandLine::ForCurrentProcess()->HasSwitch(switches::kEnableHDR) ||
base::FeatureList::IsEnabled(media::kVideoColorManagement);
switch (color_space.primaries) {
case media::VideoColorSpace::PrimaryID::EBU_3213_E:
case media::VideoColorSpace::PrimaryID::INVALID:
return false;
// Transfers supported without color management.
case media::VideoColorSpace::PrimaryID::BT709:
case media::VideoColorSpace::PrimaryID::UNSPECIFIED:
case media::VideoColorSpace::PrimaryID::BT470M:
case media::VideoColorSpace::PrimaryID::BT470BG:
case media::VideoColorSpace::PrimaryID::SMPTE170M:
break;
// Supported with color management.
case media::VideoColorSpace::PrimaryID::SMPTE240M:
case media::VideoColorSpace::PrimaryID::FILM:
case media::VideoColorSpace::PrimaryID::BT2020:
case media::VideoColorSpace::PrimaryID::SMPTEST428_1:
case media::VideoColorSpace::PrimaryID::SMPTEST431_2:
case media::VideoColorSpace::PrimaryID::SMPTEST432_1:
if (!color_management)
return false;
break;
}
switch (color_space.transfer) {
// Transfers supported without color management.
case media::VideoColorSpace::TransferID::UNSPECIFIED:
case media::VideoColorSpace::TransferID::GAMMA22:
case media::VideoColorSpace::TransferID::BT709:
case media::VideoColorSpace::TransferID::SMPTE170M:
case media::VideoColorSpace::TransferID::BT2020_10:
case media::VideoColorSpace::TransferID::BT2020_12:
case media::VideoColorSpace::TransferID::IEC61966_2_1:
break;
// Supported with color management.
case media::VideoColorSpace::TransferID::GAMMA28:
case media::VideoColorSpace::TransferID::SMPTE240M:
case media::VideoColorSpace::TransferID::LINEAR:
case media::VideoColorSpace::TransferID::LOG:
case media::VideoColorSpace::TransferID::LOG_SQRT:
case media::VideoColorSpace::TransferID::BT1361_ECG:
case media::VideoColorSpace::TransferID::SMPTEST2084:
case media::VideoColorSpace::TransferID::IEC61966_2_4:
case media::VideoColorSpace::TransferID::SMPTEST428_1:
case media::VideoColorSpace::TransferID::ARIB_STD_B67:
if (!color_management)
return false;
break;
// Never supported.
case media::VideoColorSpace::TransferID::INVALID:
return false;
}
switch (color_space.matrix) {
// Supported without color management.
case media::VideoColorSpace::MatrixID::BT709:
case media::VideoColorSpace::MatrixID::UNSPECIFIED:
case media::VideoColorSpace::MatrixID::BT470BG:
case media::VideoColorSpace::MatrixID::SMPTE170M:
case media::VideoColorSpace::MatrixID::BT2020_NCL:
break;
// Supported with color management.
case media::VideoColorSpace::MatrixID::RGB:
case media::VideoColorSpace::MatrixID::FCC:
case media::VideoColorSpace::MatrixID::SMPTE240M:
case media::VideoColorSpace::MatrixID::YCOCG:
case media::VideoColorSpace::MatrixID::YDZDX:
case media::VideoColorSpace::MatrixID::BT2020_CL:
if (!color_management)
return false;
break;
// Never supported.
case media::VideoColorSpace::MatrixID::INVALID:
return false;
}
if (color_space.range == gfx::ColorSpace::RangeID::INVALID)
return false;
return true;
}
bool IsVp9ProfileSupported(VideoCodecProfile profile) {
#if !defined(MEDIA_DISABLE_LIBVPX)
// High bit depth capabilities may be toggled via LibVPX config flags.
static bool vpx_supports_high_bit_depth =
(vpx_codec_get_caps(vpx_codec_vp9_dx()) & VPX_CODEC_CAP_HIGHBITDEPTH) !=
0;
switch (profile) {
// LibVPX always supports Profiles 0 and 1.
case VP9PROFILE_PROFILE0:
case VP9PROFILE_PROFILE1:
return true;
case VP9PROFILE_PROFILE2:
case VP9PROFILE_PROFILE3:
return vpx_supports_high_bit_depth;
default:
NOTREACHED();
}
#endif
return false;
}
bool IsSupportedAudioConfig(const AudioConfig& config) {
switch (config.codec) {
case media::kCodecAAC:
case media::kCodecFLAC:
case media::kCodecMP3:
case media::kCodecOpus:
case media::kCodecPCM:
case media::kCodecPCM_MULAW:
case media::kCodecPCM_S16BE:
case media::kCodecPCM_S24BE:
case media::kCodecPCM_ALAW:
case media::kCodecVorbis:
return true;
case media::kCodecAMR_NB:
case media::kCodecAMR_WB:
case media::kCodecGSM_MS:
#if defined(OS_CHROMEOS)
return true;
#else
return false;
#endif
case media::kCodecEAC3:
case media::kCodecALAC:
case media::kCodecAC3:
case media::kUnknownAudioCodec:
return false;
}
NOTREACHED();
return false;
}
// TODO(chcunningham): Query decoders for codec profile support. Add platform
// specific logic for Android (move from MimeUtilIntenral).
bool IsSupportedVideoConfig(const VideoConfig& config) {
switch (config.codec) {
case media::kCodecVP9:
// Color management required for HDR to not look terrible.
return IsColorSpaceSupported(config.color_space) &&
IsVp9ProfileSupported(config.profile);
case media::kCodecH264:
case media::kCodecVP8:
case media::kCodecTheora:
return true;
case media::kUnknownVideoCodec:
case media::kCodecVC1:
case media::kCodecMPEG2:
case media::kCodecMPEG4:
case media::kCodecHEVC:
case media::kCodecDolbyVision:
return false;
}
NOTREACHED();
return false;
}
} // namespace media
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