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337
res/vcpkg/libyuv/cpp/yuv_ffi.h
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337
res/vcpkg/libyuv/cpp/yuv_ffi.h
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#ifndef YUV_FFI_H
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#define YUV_FFI_H
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#include <stdint.h>
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#include <stddef.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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// ============================================================================
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// libyuv function declarations
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// These are the most commonly used functions for video format conversion
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// ============================================================================
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// ----------------------------------------------------------------------------
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// YUYV (YUY2) conversions - Common for USB capture cards
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// ----------------------------------------------------------------------------
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// YUYV -> I420 (YUV420P planar)
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int YUY2ToI420(const uint8_t* src_yuy2, int src_stride_yuy2,
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uint8_t* dst_y, int dst_stride_y,
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uint8_t* dst_u, int dst_stride_u,
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uint8_t* dst_v, int dst_stride_v,
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int width, int height);
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// YUYV -> NV12 (optimal for VAAPI)
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int YUY2ToNV12(const uint8_t* src_yuy2, int src_stride_yuy2,
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uint8_t* dst_y, int dst_stride_y,
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uint8_t* dst_uv, int dst_stride_uv,
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int width, int height);
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// ----------------------------------------------------------------------------
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// UYVY conversions
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// ----------------------------------------------------------------------------
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int UYVYToI420(const uint8_t* src_uyvy, int src_stride_uyvy,
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uint8_t* dst_y, int dst_stride_y,
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uint8_t* dst_u, int dst_stride_u,
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uint8_t* dst_v, int dst_stride_v,
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int width, int height);
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int UYVYToNV12(const uint8_t* src_uyvy, int src_stride_uyvy,
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uint8_t* dst_y, int dst_stride_y,
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uint8_t* dst_uv, int dst_stride_uv,
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int width, int height);
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// ----------------------------------------------------------------------------
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// I420 (YUV420P) conversions
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// ----------------------------------------------------------------------------
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// I422 (YUV422P) -> I420 (YUV420P) with vertical chroma downsampling
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int I422ToI420(const uint8_t* src_y, int src_stride_y,
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const uint8_t* src_u, int src_stride_u,
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const uint8_t* src_v, int src_stride_v,
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uint8_t* dst_y, int dst_stride_y,
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uint8_t* dst_u, int dst_stride_u,
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uint8_t* dst_v, int dst_stride_v,
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int width, int height);
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// I420 -> NV12
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int I420ToNV12(const uint8_t* src_y, int src_stride_y,
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const uint8_t* src_u, int src_stride_u,
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const uint8_t* src_v, int src_stride_v,
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uint8_t* dst_y, int dst_stride_y,
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uint8_t* dst_uv, int dst_stride_uv,
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int width, int height);
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// I420 -> NV21
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int I420ToNV21(const uint8_t* src_y, int src_stride_y,
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const uint8_t* src_u, int src_stride_u,
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const uint8_t* src_v, int src_stride_v,
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uint8_t* dst_y, int dst_stride_y,
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uint8_t* dst_vu, int dst_stride_vu,
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int width, int height);
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// ----------------------------------------------------------------------------
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// NV12/NV21 conversions
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// ----------------------------------------------------------------------------
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// NV12 -> I420
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int NV12ToI420(const uint8_t* src_y, int src_stride_y,
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const uint8_t* src_uv, int src_stride_uv,
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uint8_t* dst_y, int dst_stride_y,
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uint8_t* dst_u, int dst_stride_u,
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uint8_t* dst_v, int dst_stride_v,
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int width, int height);
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// NV21 -> I420
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int NV21ToI420(const uint8_t* src_y, int src_stride_y,
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const uint8_t* src_vu, int src_stride_vu,
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uint8_t* dst_y, int dst_stride_y,
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uint8_t* dst_u, int dst_stride_u,
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uint8_t* dst_v, int dst_stride_v,
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int width, int height);
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// ----------------------------------------------------------------------------
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// ARGB/BGRA conversions (32-bit RGB)
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// Note: libyuv uses ARGB to mean BGRA in memory (little-endian)
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// ----------------------------------------------------------------------------
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// BGRA -> I420
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int ARGBToI420(const uint8_t* src_argb, int src_stride_argb,
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uint8_t* dst_y, int dst_stride_y,
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uint8_t* dst_u, int dst_stride_u,
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uint8_t* dst_v, int dst_stride_v,
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int width, int height);
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// BGRA -> NV12
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int ARGBToNV12(const uint8_t* src_argb, int src_stride_argb,
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uint8_t* dst_y, int dst_stride_y,
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uint8_t* dst_uv, int dst_stride_uv,
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int width, int height);
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// RGBA -> I420
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int ABGRToI420(const uint8_t* src_abgr, int src_stride_abgr,
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uint8_t* dst_y, int dst_stride_y,
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uint8_t* dst_u, int dst_stride_u,
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uint8_t* dst_v, int dst_stride_v,
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int width, int height);
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// RGBA -> NV12
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int ABGRToNV12(const uint8_t* src_abgr, int src_stride_abgr,
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uint8_t* dst_y, int dst_stride_y,
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uint8_t* dst_uv, int dst_stride_uv,
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int width, int height);
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// ARGB <-> ABGR swap (BGRA <-> RGBA)
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int ARGBToABGR(const uint8_t* src_argb, int src_stride_argb,
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uint8_t* dst_abgr, int dst_stride_abgr,
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int width, int height);
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int ABGRToARGB(const uint8_t* src_abgr, int src_stride_abgr,
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uint8_t* dst_argb, int dst_stride_argb,
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int width, int height);
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// ----------------------------------------------------------------------------
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// RGB24/BGR24 conversions (24-bit RGB)
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// ----------------------------------------------------------------------------
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// RGB24 -> I420
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int RGB24ToI420(const uint8_t* src_rgb24, int src_stride_rgb24,
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uint8_t* dst_y, int dst_stride_y,
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uint8_t* dst_u, int dst_stride_u,
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uint8_t* dst_v, int dst_stride_v,
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int width, int height);
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// BGR24 (RAW) -> I420
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int RAWToI420(const uint8_t* src_raw, int src_stride_raw,
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uint8_t* dst_y, int dst_stride_y,
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uint8_t* dst_u, int dst_stride_u,
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uint8_t* dst_v, int dst_stride_v,
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int width, int height);
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// RGB24 -> ARGB
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int RGB24ToARGB(const uint8_t* src_rgb24, int src_stride_rgb24,
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uint8_t* dst_argb, int dst_stride_argb,
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int width, int height);
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// BGR24 (RAW) -> ARGB
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int RAWToARGB(const uint8_t* src_raw, int src_stride_raw,
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uint8_t* dst_argb, int dst_stride_argb,
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int width, int height);
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// ----------------------------------------------------------------------------
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// YUV to RGB conversions (for display/JPEG encoding)
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// ----------------------------------------------------------------------------
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// I420 -> RGB24
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int I420ToRGB24(const uint8_t* src_y, int src_stride_y,
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const uint8_t* src_u, int src_stride_u,
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const uint8_t* src_v, int src_stride_v,
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uint8_t* dst_rgb24, int dst_stride_rgb24,
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int width, int height);
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// I420 -> ARGB (BGRA)
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int I420ToARGB(const uint8_t* src_y, int src_stride_y,
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const uint8_t* src_u, int src_stride_u,
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const uint8_t* src_v, int src_stride_v,
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uint8_t* dst_argb, int dst_stride_argb,
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int width, int height);
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// NV12 -> RGB24
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int NV12ToRGB24(const uint8_t* src_y, int src_stride_y,
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const uint8_t* src_uv, int src_stride_uv,
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uint8_t* dst_rgb24, int dst_stride_rgb24,
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int width, int height);
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// NV12 -> ARGB (BGRA)
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int NV12ToARGB(const uint8_t* src_y, int src_stride_y,
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const uint8_t* src_uv, int src_stride_uv,
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uint8_t* dst_argb, int dst_stride_argb,
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int width, int height);
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// YUYV -> ARGB (BGRA)
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int YUY2ToARGB(const uint8_t* src_yuy2, int src_stride_yuy2,
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uint8_t* dst_argb, int dst_stride_argb,
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int width, int height);
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// UYVY -> ARGB (BGRA)
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int UYVYToARGB(const uint8_t* src_uyvy, int src_stride_uyvy,
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uint8_t* dst_argb, int dst_stride_argb,
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int width, int height);
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// ARGB -> RGB24
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int ARGBToRGB24(const uint8_t* src_argb, int src_stride_argb,
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uint8_t* dst_rgb24, int dst_stride_rgb24,
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int width, int height);
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// ARGB -> RAW (BGR24)
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int ARGBToRAW(const uint8_t* src_argb, int src_stride_argb,
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uint8_t* dst_raw, int dst_stride_raw,
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int width, int height);
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// ----------------------------------------------------------------------------
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// MJPEG decoding (libyuv built-in, faster than FFmpeg for simple cases)
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// ----------------------------------------------------------------------------
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// MJPEG -> I420
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int MJPGToI420(const uint8_t* sample, size_t sample_size,
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uint8_t* dst_y, int dst_stride_y,
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uint8_t* dst_u, int dst_stride_u,
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uint8_t* dst_v, int dst_stride_v,
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int src_width, int src_height,
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int dst_width, int dst_height);
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// MJPEG -> NV12
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int MJPGToNV12(const uint8_t* sample, size_t sample_size,
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uint8_t* dst_y, int dst_stride_y,
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uint8_t* dst_uv, int dst_stride_uv,
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int src_width, int src_height,
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int dst_width, int dst_height);
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// MJPEG -> ARGB
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int MJPGToARGB(const uint8_t* sample, size_t sample_size,
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uint8_t* dst_argb, int dst_stride_argb,
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int src_width, int src_height,
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int dst_width, int dst_height);
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// Get MJPEG dimensions without decoding
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int MJPGSize(const uint8_t* sample, size_t sample_size,
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int* width, int* height);
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// ----------------------------------------------------------------------------
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// Scaling
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// ----------------------------------------------------------------------------
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// Scale filter modes
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enum FilterMode {
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kFilterNone = 0, // Point sample; Fastest
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kFilterLinear = 1, // Filter horizontally only
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kFilterBilinear = 2, // Faster than box, but lower quality scaling down
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kFilterBox = 3 // Highest quality
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};
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// I420 scale
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int I420Scale(const uint8_t* src_y, int src_stride_y,
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const uint8_t* src_u, int src_stride_u,
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const uint8_t* src_v, int src_stride_v,
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int src_width, int src_height,
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uint8_t* dst_y, int dst_stride_y,
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uint8_t* dst_u, int dst_stride_u,
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uint8_t* dst_v, int dst_stride_v,
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int dst_width, int dst_height,
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enum FilterMode filtering);
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// NV12 scale
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int NV12Scale(const uint8_t* src_y, int src_stride_y,
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const uint8_t* src_uv, int src_stride_uv,
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int src_width, int src_height,
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uint8_t* dst_y, int dst_stride_y,
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uint8_t* dst_uv, int dst_stride_uv,
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int dst_width, int dst_height,
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enum FilterMode filtering);
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// ARGB scale
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int ARGBScale(const uint8_t* src_argb, int src_stride_argb,
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int src_width, int src_height,
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uint8_t* dst_argb, int dst_stride_argb,
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int dst_width, int dst_height,
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enum FilterMode filtering);
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// ----------------------------------------------------------------------------
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// Rotation
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// ----------------------------------------------------------------------------
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enum RotationMode {
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kRotate0 = 0,
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kRotate90 = 90,
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kRotate180 = 180,
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kRotate270 = 270
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};
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// I420 rotate
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int I420Rotate(const uint8_t* src_y, int src_stride_y,
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const uint8_t* src_u, int src_stride_u,
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const uint8_t* src_v, int src_stride_v,
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uint8_t* dst_y, int dst_stride_y,
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uint8_t* dst_u, int dst_stride_u,
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uint8_t* dst_v, int dst_stride_v,
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int width, int height,
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enum RotationMode mode);
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// NV12 rotate
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int NV12ToI420Rotate(const uint8_t* src_y, int src_stride_y,
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const uint8_t* src_uv, int src_stride_uv,
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uint8_t* dst_y, int dst_stride_y,
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uint8_t* dst_u, int dst_stride_u,
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uint8_t* dst_v, int dst_stride_v,
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int width, int height,
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enum RotationMode mode);
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// ----------------------------------------------------------------------------
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// Copy functions
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// ----------------------------------------------------------------------------
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// Copy I420
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int I420Copy(const uint8_t* src_y, int src_stride_y,
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const uint8_t* src_u, int src_stride_u,
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const uint8_t* src_v, int src_stride_v,
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uint8_t* dst_y, int dst_stride_y,
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uint8_t* dst_u, int dst_stride_u,
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uint8_t* dst_v, int dst_stride_v,
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int width, int height);
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// Copy NV12
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int NV12Copy(const uint8_t* src_y, int src_stride_y,
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const uint8_t* src_uv, int src_stride_uv,
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uint8_t* dst_y, int dst_stride_y,
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uint8_t* dst_uv, int dst_stride_uv,
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int width, int height);
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#ifdef __cplusplus
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}
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#endif
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#endif // YUV_FFI_H
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