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// Copyright 2019 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.
// Note: ported from Chromium commit head: 27c98933749f
#include "fourcc.h"
#include <linux/videodev2.h>
#include "base/logging.h"
#include "base/strings/stringprintf.h"
#include <utils/Log.h>
namespace media {
Fourcc::Fourcc(Fourcc::Value fourcc) : value_(fourcc) {}
Fourcc::~Fourcc() = default;
Fourcc& Fourcc::operator=(const Fourcc& other) = default;
// static
std::optional<Fourcc> Fourcc::FromUint32(uint32_t fourcc) {
switch (fourcc) {
case AR24:
case AB24:
case XR24:
case XB24:
case RGB4:
case YU12:
case YV12:
case YM12:
case YM21:
case YUYV:
case NV12:
case NV21:
case NM12:
case NM21:
case YM16:
case MT21:
case MM21:
return Fourcc(static_cast<Value>(fourcc));
}
ALOGE("Unmapped fourcc: %s", FourccToString(fourcc).c_str());
return std::nullopt;
}
// static
base::Optional<Fourcc> Fourcc::FromVideoPixelFormat(
VideoPixelFormat pixel_format,
bool single_planar) {
if (single_planar) {
switch (pixel_format) {
case PIXEL_FORMAT_ARGB:
return Fourcc(AR24);
case PIXEL_FORMAT_ABGR:
return Fourcc(AB24);
case PIXEL_FORMAT_XRGB:
return Fourcc(XR24);
case PIXEL_FORMAT_XBGR:
return Fourcc(XB24);
case PIXEL_FORMAT_BGRA:
return Fourcc(RGB4);
case PIXEL_FORMAT_I420:
return Fourcc(YU12);
case PIXEL_FORMAT_YV12:
return Fourcc(YV12);
case PIXEL_FORMAT_YUY2:
return Fourcc(YUYV);
case PIXEL_FORMAT_NV12:
return Fourcc(NV12);
case PIXEL_FORMAT_NV21:
return Fourcc(NV21);
case PIXEL_FORMAT_I422:
case PIXEL_FORMAT_I420A:
case PIXEL_FORMAT_I444:
case PIXEL_FORMAT_RGB24:
case PIXEL_FORMAT_MJPEG:
case PIXEL_FORMAT_YUV420P9:
case PIXEL_FORMAT_YUV420P10:
case PIXEL_FORMAT_YUV422P9:
case PIXEL_FORMAT_YUV422P10:
case PIXEL_FORMAT_YUV444P9:
case PIXEL_FORMAT_YUV444P10:
case PIXEL_FORMAT_YUV420P12:
case PIXEL_FORMAT_YUV422P12:
case PIXEL_FORMAT_YUV444P12:
case PIXEL_FORMAT_Y16:
case PIXEL_FORMAT_P016LE:
case PIXEL_FORMAT_XR30:
case PIXEL_FORMAT_XB30:
case PIXEL_FORMAT_UNKNOWN:
break;
}
} else {
switch (pixel_format) {
case PIXEL_FORMAT_I420:
return Fourcc(YM12);
case PIXEL_FORMAT_YV12:
return Fourcc(YM21);
case PIXEL_FORMAT_NV12:
return Fourcc(NM12);
case PIXEL_FORMAT_I422:
return Fourcc(YM16);
case PIXEL_FORMAT_NV21:
return Fourcc(NM21);
case PIXEL_FORMAT_I420A:
case PIXEL_FORMAT_I444:
case PIXEL_FORMAT_YUY2:
case PIXEL_FORMAT_ARGB:
case PIXEL_FORMAT_XRGB:
case PIXEL_FORMAT_RGB24:
case PIXEL_FORMAT_MJPEG:
case PIXEL_FORMAT_YUV420P9:
case PIXEL_FORMAT_YUV420P10:
case PIXEL_FORMAT_YUV422P9:
case PIXEL_FORMAT_YUV422P10:
case PIXEL_FORMAT_YUV444P9:
case PIXEL_FORMAT_YUV444P10:
case PIXEL_FORMAT_YUV420P12:
case PIXEL_FORMAT_YUV422P12:
case PIXEL_FORMAT_YUV444P12:
case PIXEL_FORMAT_Y16:
case PIXEL_FORMAT_ABGR:
case PIXEL_FORMAT_XBGR:
case PIXEL_FORMAT_P016LE:
case PIXEL_FORMAT_XR30:
case PIXEL_FORMAT_XB30:
case PIXEL_FORMAT_BGRA:
case PIXEL_FORMAT_UNKNOWN:
break;
}
}
ALOGE("Unmapped %s for %s", VideoPixelFormatToString(pixel_format).c_str(),
single_planar ? "single-planar" : "multi-planar");
return base::nullopt;
}
VideoPixelFormat Fourcc::ToVideoPixelFormat() const {
switch (value_) {
case AR24:
return PIXEL_FORMAT_ARGB;
case AB24:
return PIXEL_FORMAT_ABGR;
case XR24:
return PIXEL_FORMAT_XRGB;
case XB24:
return PIXEL_FORMAT_XBGR;
case RGB4:
return PIXEL_FORMAT_BGRA;
case YU12:
case YM12:
return PIXEL_FORMAT_I420;
case YV12:
case YM21:
return PIXEL_FORMAT_YV12;
case YUYV:
return PIXEL_FORMAT_YUY2;
case NV12:
case NM12:
return PIXEL_FORMAT_NV12;
case NV21:
case NM21:
return PIXEL_FORMAT_NV21;
case YM16:
return PIXEL_FORMAT_I422;
// V4L2_PIX_FMT_MT21C is only used for MT8173 hardware video decoder output
// and should be converted by MT8173 image processor for compositor to
// render. Since it is an intermediate format for video decoder,
// VideoPixelFormat shall not have its mapping. However, we need to create a
// VideoFrameLayout for the format to process the intermediate frame. Hence
// we map V4L2_PIX_FMT_MT21C to PIXEL_FORMAT_NV12 as their layout are the
// same.
case MT21:
// V4L2_PIX_FMT_MM21 is used for MT8183 hardware video decoder. It is
// similar to V4L2_PIX_FMT_MT21C but is not compressed ; thus it can also
// be mapped to PIXEL_FORMAT_NV12.
case MM21:
return PIXEL_FORMAT_NV12;
}
NOTREACHED() << "Unmapped Fourcc: " << ToString();
return PIXEL_FORMAT_UNKNOWN;
}
// static
std::optional<Fourcc> Fourcc::FromV4L2PixFmt(uint32_t v4l2_pix_fmt) {
// We can do that because we adopt the same internal definition of Fourcc as
// V4L2.
return FromUint32(v4l2_pix_fmt);
}
uint32_t Fourcc::ToV4L2PixFmt() const {
// Note that we can do that because we adopt the same internal definition of
// Fourcc as V4L2.
return static_cast<uint32_t>(value_);
}
base::Optional<Fourcc> Fourcc::ToSinglePlanar() const {
switch (value_) {
case AR24:
case AB24:
case XR24:
case XB24:
case RGB4:
case YU12:
case YV12:
case YUYV:
case NV12:
case NV21:
return Fourcc(value_);
case YM12:
return Fourcc(YU12);
case YM21:
return Fourcc(YV12);
case NM12:
return Fourcc(NV12);
case NM21:
return Fourcc(NV21);
case YM16:
case MT21:
case MM21:
return base::nullopt;
}
}
bool operator!=(const Fourcc& lhs, const Fourcc& rhs) {
return !(lhs == rhs);
}
bool Fourcc::IsMultiPlanar() const {
switch (value_) {
case AR24:
case AB24:
case XR24:
case XB24:
case RGB4:
case YU12:
case YV12:
case YUYV:
case NV12:
case NV21:
return false;
case YM12:
case YM21:
case NM12:
case NM21:
case YM16:
case MT21:
case MM21:
return true;
}
}
std::string Fourcc::ToString() const {
return FourccToString(static_cast<uint32_t>(value_));
}
static_assert(Fourcc::AR24 == V4L2_PIX_FMT_ABGR32, "Mismatch Fourcc");
#ifdef V4L2_PIX_FMT_RGBA32
// V4L2_PIX_FMT_RGBA32 is defined since v5.2
static_assert(Fourcc::AB24 == V4L2_PIX_FMT_RGBA32, "Mismatch Fourcc");
#endif // V4L2_PIX_FMT_RGBA32
static_assert(Fourcc::XR24 == V4L2_PIX_FMT_XBGR32, "Mismatch Fourcc");
#ifdef V4L2_PIX_FMT_RGBX32
// V4L2_PIX_FMT_RGBX32 is defined since v5.2
static_assert(Fourcc::XB24 == V4L2_PIX_FMT_RGBX32, "Mismatch Fourcc");
#endif // V4L2_PIX_FMT_RGBX32
static_assert(Fourcc::RGB4 == V4L2_PIX_FMT_RGB32, "Mismatch Fourcc");
static_assert(Fourcc::YU12 == V4L2_PIX_FMT_YUV420, "Mismatch Fourcc");
static_assert(Fourcc::YV12 == V4L2_PIX_FMT_YVU420, "Mismatch Fourcc");
static_assert(Fourcc::YM12 == V4L2_PIX_FMT_YUV420M, "Mismatch Fourcc");
static_assert(Fourcc::YM21 == V4L2_PIX_FMT_YVU420M, "Mismatch Fourcc");
static_assert(Fourcc::YUYV == V4L2_PIX_FMT_YUYV, "Mismatch Fourcc");
static_assert(Fourcc::NV12 == V4L2_PIX_FMT_NV12, "Mismatch Fourcc");
static_assert(Fourcc::NV21 == V4L2_PIX_FMT_NV21, "Mismatch Fourcc");
static_assert(Fourcc::NM12 == V4L2_PIX_FMT_NV12M, "Mismatch Fourcc");
static_assert(Fourcc::NM21 == V4L2_PIX_FMT_NV21M, "Mismatch Fourcc");
static_assert(Fourcc::YM16 == V4L2_PIX_FMT_YUV422M, "Mismatch Fourcc");
static_assert(Fourcc::MT21 == V4L2_PIX_FMT_MT21C, "Mismatch Fourcc");
#ifdef V4L2_PIX_FMT_MM21
// V4L2_PIX_FMT_MM21 is not yet upstreamed.
static_assert(Fourcc::MM21 == V4L2_PIX_FMT_MM21, "Mismatch Fourcc");
#endif // V4L2_PIX_FMT_MM21
} // namespace media
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