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/*
* Copyright (C) 2022 Igalia S.L
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* aint with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "GStreamerCodecUtilities.h"
#if USE(GSTREAMER)
#include "HEVCUtilities.h"
#include "VP9Utilities.h"
#include <gst/pbutils/codec-utils.h>
#include <gst/video/video.h>
#include <wtf/text/StringBuilder.h>
#include <wtf/text/StringToIntegerConversion.h>
#include <wtf/text/WTFString.h>
GST_DEBUG_CATEGORY(webkit_gst_codec_utilities_debug);
#define GST_CAT_DEFAULT webkit_gst_codec_utilities_debug
namespace WebCore {
static void ensureDebugCategoryInitialized()
{
static std::once_flag debugRegisteredFlag;
std::call_once(debugRegisteredFlag, [] {
GST_DEBUG_CATEGORY_INIT(webkit_gst_codec_utilities_debug, "webkitcodec", 0, "WebKit Codecs Utilities");
});
}
std::pair<const char*, const char*> GStreamerCodecUtilities::parseH264ProfileAndLevel(const String& codec)
{
ensureDebugCategoryInitialized();
auto components = codec.split('.');
long int spsAsInteger = strtol(components[1].utf8().data(), nullptr, 16);
uint8_t sps[3];
sps[0] = spsAsInteger >> 16;
sps[1] = spsAsInteger >> 8;
sps[2] = spsAsInteger;
const char* profile = gst_codec_utils_h264_get_profile(sps, 3);
const char* level = gst_codec_utils_h264_get_level(sps, 3);
// To avoid going through a class hierarchy for such a simple
// string conversion, we use a little trick here: See
// https://bugs.webkit.org/show_bug.cgi?id=201870.
char levelAsStringFallback[2] = { '\0', '\0' };
if (!level && sps[2] > 0 && sps[2] <= 5) {
levelAsStringFallback[0] = static_cast<char>('0' + sps[2]);
level = levelAsStringFallback;
}
GST_DEBUG("Codec %s translates to H.264 profile %s and level %s", codec.utf8().data(), GST_STR_NULL(profile), GST_STR_NULL(level));
return { profile, level };
}
const char* GStreamerCodecUtilities::parseHEVCProfile(const String& codec)
{
ensureDebugCategoryInitialized();
GST_DEBUG("Parsing HEVC codec string: %s", codec.ascii().data());
auto parameters = parseHEVCCodecParameters(codec);
if (!parameters) {
GST_WARNING("Invalid HEVC codec: %s", codec.ascii().data());
return nullptr;
}
if (parameters->generalProfileSpace > 3) {
GST_WARNING("Invalid general_profile_space: %u", parameters->generalProfileSpace);
return nullptr;
}
if (parameters->generalProfileIDC > 0x1F) {
GST_WARNING("Invalid general_profile_idc: %u", parameters->generalProfileIDC);
return nullptr;
}
uint8_t profileTierLevel[11] = { 0, };
memset(profileTierLevel, 0, 11);
profileTierLevel[0] = parameters->generalProfileIDC;
if (profileTierLevel[0] >= 4) {
auto& constraints = parameters->generalConstraintIndicatorFlags;
for (unsigned i = 5, j = 0; i < 10; i++, j++)
profileTierLevel[i] = constraints[j];
}
return gst_codec_utils_h265_get_profile(profileTierLevel, sizeof(profileTierLevel));
}
static std::pair<GRefPtr<GstCaps>, GRefPtr<GstCaps>> vpxCapsFromCodecString(const String& codecString, unsigned width, unsigned height, int framerateNumerator, int framerateDenominator)
{
auto parameters = parseVPCodecParameters(codecString);
if (!parameters)
return { nullptr, nullptr };
auto inputCaps = adoptGRef(gst_caps_new_any());
if (parameters->codecName.startsWith("vp8"_s) || parameters->codecName.startsWith("vp08"_s))
return { inputCaps, adoptGRef(gst_caps_new_empty_simple("video/x-vp8")) };
auto outputCaps = adoptGRef(gst_caps_new_empty_simple("video/x-vp9"));
auto profile = makeString(parameters->profile);
gst_caps_set_simple(outputCaps.get(), "profile", G_TYPE_STRING, profile.ascii().data(), nullptr);
const char* yuvFormat = "I420";
if (parameters->chromaSubsampling == VPConfigurationChromaSubsampling::Subsampling_422)
yuvFormat = "I422";
else if (parameters->chromaSubsampling == VPConfigurationChromaSubsampling::Subsampling_444)
yuvFormat = "Y444";
StringBuilder formatBuilder;
formatBuilder.append(yuvFormat);
if (parameters->bitDepth > 8) {
formatBuilder.append('_', parameters->bitDepth);
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
formatBuilder.append("LE"_s);
#else
formatBuilder.append("BE"_s);
#endif
}
auto formatString = formatBuilder.toString();
auto format = gst_video_format_from_string(formatString.ascii().data());
GstVideoInfo info;
gst_video_info_set_format(&info, format, width, height);
if (parameters->videoFullRangeFlag == VPConfigurationRange::FullRange)
GST_VIDEO_INFO_COLORIMETRY(&info).range = GST_VIDEO_COLOR_RANGE_0_255;
else
GST_VIDEO_INFO_COLORIMETRY(&info).range = GST_VIDEO_COLOR_RANGE_16_235;
auto primaries = parameters->colorPrimaries;
if (primaries == VPConfigurationColorPrimaries::BT_709_6)
GST_VIDEO_INFO_COLORIMETRY(&info).primaries = GST_VIDEO_COLOR_PRIMARIES_BT709;
else if (primaries == VPConfigurationColorPrimaries::BT_470_6_M)
GST_VIDEO_INFO_COLORIMETRY(&info).primaries = GST_VIDEO_COLOR_PRIMARIES_BT470M;
else if (primaries == VPConfigurationColorPrimaries::BT_470_7_BG || primaries == VPConfigurationColorPrimaries::BT_601_7)
GST_VIDEO_INFO_COLORIMETRY(&info).primaries = GST_VIDEO_COLOR_PRIMARIES_BT470BG;
else if (primaries == VPConfigurationColorPrimaries::SMPTE_ST_240)
GST_VIDEO_INFO_COLORIMETRY(&info).primaries = GST_VIDEO_COLOR_PRIMARIES_SMPTE240M;
else if (primaries == VPConfigurationColorPrimaries::Film)
GST_VIDEO_INFO_COLORIMETRY(&info).primaries = GST_VIDEO_COLOR_PRIMARIES_FILM;
else if (primaries == VPConfigurationColorPrimaries::BT_2020_Nonconstant_Luminance)
GST_VIDEO_INFO_COLORIMETRY(&info).primaries = GST_VIDEO_COLOR_PRIMARIES_BT2020;
else if (primaries == VPConfigurationColorPrimaries::SMPTE_ST_428_1)
GST_VIDEO_INFO_COLORIMETRY(&info).primaries = GST_VIDEO_COLOR_PRIMARIES_SMPTEST428;
else if (primaries == VPConfigurationColorPrimaries::SMPTE_RP_431_2)
GST_VIDEO_INFO_COLORIMETRY(&info).primaries = GST_VIDEO_COLOR_PRIMARIES_SMPTERP431;
else if (primaries == VPConfigurationColorPrimaries::SMPTE_EG_432_1)
GST_VIDEO_INFO_COLORIMETRY(&info).primaries = GST_VIDEO_COLOR_PRIMARIES_SMPTEEG432;
else if (primaries == VPConfigurationColorPrimaries::EBU_Tech_3213_E)
GST_VIDEO_INFO_COLORIMETRY(&info).primaries = GST_VIDEO_COLOR_PRIMARIES_EBU3213;
else if (primaries == VPConfigurationColorPrimaries::Unspecified)
GST_VIDEO_INFO_COLORIMETRY(&info).primaries = GST_VIDEO_COLOR_PRIMARIES_UNKNOWN;
auto transfer = parameters->transferCharacteristics;
if (transfer == VPConfigurationTransferCharacteristics::BT_709_6 || transfer == VPConfigurationTransferCharacteristics::BT_470_6_M || transfer == VPConfigurationTransferCharacteristics::BT_1361_0)
GST_VIDEO_INFO_COLORIMETRY(&info).transfer = GST_VIDEO_TRANSFER_BT709;
else if (transfer == VPConfigurationTransferCharacteristics::BT_470_7_BG)
GST_VIDEO_INFO_COLORIMETRY(&info).transfer = GST_VIDEO_TRANSFER_GAMMA28;
else if (transfer == VPConfigurationTransferCharacteristics::BT_601_7)
GST_VIDEO_INFO_COLORIMETRY(&info).transfer = GST_VIDEO_TRANSFER_BT601;
else if (transfer == VPConfigurationTransferCharacteristics::SMPTE_ST_240)
GST_VIDEO_INFO_COLORIMETRY(&info).transfer = GST_VIDEO_TRANSFER_SMPTE240M;
else if (transfer == VPConfigurationTransferCharacteristics::Linear)
GST_VIDEO_INFO_COLORIMETRY(&info).transfer = GST_VIDEO_TRANSFER_GAMMA10;
else if (transfer == VPConfigurationTransferCharacteristics::Logrithmic)
GST_VIDEO_INFO_COLORIMETRY(&info).transfer = GST_VIDEO_TRANSFER_LOG100;
else if (transfer == VPConfigurationTransferCharacteristics::Logrithmic_Sqrt)
GST_VIDEO_INFO_COLORIMETRY(&info).transfer = GST_VIDEO_TRANSFER_LOG316;
else if (transfer == VPConfigurationTransferCharacteristics::IEC_61966_2_4)
GST_VIDEO_INFO_COLORIMETRY(&info).transfer = GST_VIDEO_TRANSFER_SRGB;
else if (transfer == VPConfigurationTransferCharacteristics::IEC_61966_2_1) {
GST_WARNING("VPConfigurationTransferCharacteristics::IEC_61966_2_1 not supported");
GST_VIDEO_INFO_COLORIMETRY(&info).transfer = GST_VIDEO_TRANSFER_UNKNOWN;
} else if (transfer == VPConfigurationTransferCharacteristics::BT_2020_10bit)
GST_VIDEO_INFO_COLORIMETRY(&info).transfer = GST_VIDEO_TRANSFER_BT2020_10;
else if (transfer == VPConfigurationTransferCharacteristics::BT_2020_12bit)
GST_VIDEO_INFO_COLORIMETRY(&info).transfer = GST_VIDEO_TRANSFER_BT2020_12;
else if (transfer == VPConfigurationTransferCharacteristics::SMPTE_ST_2084)
GST_VIDEO_INFO_COLORIMETRY(&info).transfer = GST_VIDEO_TRANSFER_SMPTE2084;
else if (transfer == VPConfigurationTransferCharacteristics::SMPTE_ST_428_1) {
GST_WARNING("VPConfigurationTransferCharacteristics::SMPTE_ST_428_1 not supported");
GST_VIDEO_INFO_COLORIMETRY(&info).transfer = GST_VIDEO_TRANSFER_UNKNOWN;
} else if (transfer == VPConfigurationTransferCharacteristics::BT_2100_HLG)
GST_VIDEO_INFO_COLORIMETRY(&info).transfer = GST_VIDEO_TRANSFER_ARIB_STD_B67;
auto matrix = parameters->matrixCoefficients;
if (matrix == VPConfigurationMatrixCoefficients::Identity)
GST_VIDEO_INFO_COLORIMETRY(&info).matrix = GST_VIDEO_COLOR_MATRIX_RGB;
else if (matrix == VPConfigurationMatrixCoefficients::BT_709_6)
GST_VIDEO_INFO_COLORIMETRY(&info).matrix = GST_VIDEO_COLOR_MATRIX_BT709;
else if (matrix == VPConfigurationMatrixCoefficients::Unspecified)
GST_VIDEO_INFO_COLORIMETRY(&info).matrix = GST_VIDEO_COLOR_MATRIX_UNKNOWN;
else if (matrix == VPConfigurationMatrixCoefficients::FCC)
GST_VIDEO_INFO_COLORIMETRY(&info).matrix = GST_VIDEO_COLOR_MATRIX_FCC;
else if (matrix == VPConfigurationMatrixCoefficients::BT_601_7)
GST_VIDEO_INFO_COLORIMETRY(&info).matrix = GST_VIDEO_COLOR_MATRIX_BT601;
else if (matrix == VPConfigurationMatrixCoefficients::SMPTE_ST_240)
GST_VIDEO_INFO_COLORIMETRY(&info).matrix = GST_VIDEO_COLOR_MATRIX_SMPTE240M;
else if (matrix == VPConfigurationMatrixCoefficients::BT_2020_Constant_Luminance)
GST_VIDEO_INFO_COLORIMETRY(&info).matrix = GST_VIDEO_COLOR_MATRIX_BT2020;
else {
GST_WARNING("Color matrix not supported: %u", matrix);
GST_VIDEO_INFO_COLORIMETRY(&info).matrix = GST_VIDEO_COLOR_MATRIX_UNKNOWN;
}
inputCaps = adoptGRef(gst_video_info_to_caps(&info));
gst_caps_set_simple(inputCaps.get(), "framerate", GST_TYPE_FRACTION, framerateNumerator, framerateDenominator, nullptr);
return { inputCaps, outputCaps };
}
std::pair<GRefPtr<GstCaps>, GRefPtr<GstCaps>> GStreamerCodecUtilities::capsFromCodecString(const String& codecString, unsigned width, unsigned height, int framerateNumerator, int framerateDenominator)
{
if (codecString.startsWith("vp8"_s) || codecString.startsWith("vp08"_s) || codecString.startsWith("vp9"_s) || codecString.startsWith("vp09"_s))
return vpxCapsFromCodecString(codecString, width, height, framerateNumerator, framerateDenominator);
if (codecString.startsWith("avc1"_s))
return { nullptr, nullptr };
return { nullptr, nullptr };
}
#undef GST_CAT_DEFAULT
} // namespace WebCore
#endif // USE(GSTREAMER)
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