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/*
* Copyright (C) 2022 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "VideoPixelFormat.h"
#include <wtf/NeverDestroyed.h>
#include <wtf/text/WTFString.h>
#if USE(GSTREAMER)
#include <gst/video/video-format.h>
#endif
#if PLATFORM(COCOA)
#include <pal/cf/CoreMediaSoftLink.h>
#include "CoreVideoSoftLink.h"
#endif
namespace WebCore {
std::optional<VideoPixelFormat> convertVideoFramePixelFormat(uint32_t format, bool shouldDiscardAlpha)
{
#if PLATFORM(COCOA)
if (format == kCVPixelFormatType_420YpCbCr8BiPlanarFullRange || format == kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange || format == kCVPixelFormatType_Lossless_420YpCbCr8BiPlanarVideoRange)
return VideoPixelFormat::NV12;
if (format == kCVPixelFormatType_32BGRA)
return shouldDiscardAlpha ? VideoPixelFormat::BGRX : VideoPixelFormat::BGRA;
if (format == kCVPixelFormatType_32ARGB)
return shouldDiscardAlpha ? VideoPixelFormat::RGBX : VideoPixelFormat::RGBA;
#elif USE(GSTREAMER)
switch (format) {
case GST_VIDEO_FORMAT_I420:
return VideoPixelFormat::I420;
case GST_VIDEO_FORMAT_A420:
return VideoPixelFormat::I420A;
case GST_VIDEO_FORMAT_Y42B:
return VideoPixelFormat::I422;
case GST_VIDEO_FORMAT_Y444:
return VideoPixelFormat::I444;
case GST_VIDEO_FORMAT_NV12:
return VideoPixelFormat::NV12;
case GST_VIDEO_FORMAT_RGBA:
return shouldDiscardAlpha ? VideoPixelFormat::RGBX : VideoPixelFormat::RGBA;
case GST_VIDEO_FORMAT_RGBx:
return VideoPixelFormat::RGBX;
case GST_VIDEO_FORMAT_BGRA:
return shouldDiscardAlpha ? VideoPixelFormat::BGRX : VideoPixelFormat::BGRA;
case GST_VIDEO_FORMAT_ARGB:
return shouldDiscardAlpha ? VideoPixelFormat::RGBX : VideoPixelFormat::RGBA;
case GST_VIDEO_FORMAT_BGRx:
return VideoPixelFormat::BGRX;
default:
break;
}
#else
UNUSED_PARAM(format);
UNUSED_PARAM(shouldDiscardAlpha);
#endif
return { };
}
String convertVideoPixelFormatToString(VideoPixelFormat format)
{
static const std::array<NeverDestroyed<String>, 9> values {
MAKE_STATIC_STRING_IMPL("I420"),
MAKE_STATIC_STRING_IMPL("I420A"),
MAKE_STATIC_STRING_IMPL("I422"),
MAKE_STATIC_STRING_IMPL("I444"),
MAKE_STATIC_STRING_IMPL("NV12"),
MAKE_STATIC_STRING_IMPL("RGBA"),
MAKE_STATIC_STRING_IMPL("RGBX"),
MAKE_STATIC_STRING_IMPL("BGRA"),
MAKE_STATIC_STRING_IMPL("BGRX"),
};
static_assert(!static_cast<size_t>(VideoPixelFormat::I420), "VideoPixelFormat::I420 is not 0 as expected");
static_assert(static_cast<size_t>(VideoPixelFormat::I420A) == 1, "VideoPixelFormat::I420A is not 1 as expected");
static_assert(static_cast<size_t>(VideoPixelFormat::I422) == 2, "VideoPixelFormat::I422 is not 2 as expected");
static_assert(static_cast<size_t>(VideoPixelFormat::I444) == 3, "VideoPixelFormat::I444 is not 3 as expected");
static_assert(static_cast<size_t>(VideoPixelFormat::NV12) == 4, "VideoPixelFormat::NV12 is not 4 as expected");
static_assert(static_cast<size_t>(VideoPixelFormat::RGBA) == 5, "VideoPixelFormat::RGBA is not 5 as expected");
static_assert(static_cast<size_t>(VideoPixelFormat::RGBX) == 6, "VideoPixelFormat::RGBX is not 6 as expected");
static_assert(static_cast<size_t>(VideoPixelFormat::BGRA) == 7, "VideoPixelFormat::BGRA is not 7 as expected");
static_assert(static_cast<size_t>(VideoPixelFormat::BGRX) == 8, "VideoPixelFormat::BGRX is not 8 as expected");
ASSERT(static_cast<size_t>(format) < std::size(values));
return values[static_cast<size_t>(format)];
}
} // namespace WebCore
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