* sws_scale() wrapper so they can be freely modified here.
*/
SwsFunc swScale;
- int srcW, srcH, dstH;
- int chrSrcW, chrSrcH, chrDstW, chrDstH;
+ int srcW; ///< Width of source luma/alpha planes.
+ int srcH; ///< Height of source luma/alpha planes.
+ int dstH; ///< Height of destination luma/alpha planes.
+ int chrSrcW; ///< Width of source chroma planes.
+ int chrSrcH; ///< Height of source chroma planes.
+ int chrDstW; ///< Width of destination chroma planes.
+ int chrDstH; ///< Height of destination chroma planes.
int lumXInc, chrXInc;
int lumYInc, chrYInc;
- enum PixelFormat dstFormat, srcFormat; ///< format 4:2:0 type is always YV12
+ enum PixelFormat dstFormat; ///< Destination pixel format.
+ enum PixelFormat srcFormat; ///< Source pixel format.
int chrSrcHSubSample, chrSrcVSubSample;
int chrDstHSubSample, chrDstVSubSample;
int vChrDrop;
int sliceDir;
- double param[2];
+ double param[2]; ///< Input parameters for scaling algorithms that need them.
uint32_t pal_yuv[256];
uint32_t pal_rgb[256];
int vLumBufSize;
int vChrBufSize;
- int lumMmx2FilterCodeSize;
- int chrMmx2FilterCodeSize;
- uint8_t *lumMmx2FilterCode;
- uint8_t *chrMmx2FilterCode;
+ int lumMmx2FilterCodeSize; ///< Runtime-generated MMX2 horizontal fast bilinear scaler code size for luma/alpha planes.
+ int chrMmx2FilterCodeSize; ///< Runtime-generated MMX2 horizontal fast bilinear scaler code size for chroma planes.
+ uint8_t *lumMmx2FilterCode; ///< Runtime-generated MMX2 horizontal fast bilinear scaler code for luma/alpha planes.
+ uint8_t *chrMmx2FilterCode; ///< Runtime-generated MMX2 horizontal fast bilinear scaler code for chroma planes.
int canMMX2BeUsed;
int lastInChrBuf;
int lumBufIndex;
int chrBufIndex;
- int dstY;
- int flags;
+ int dstY; ///< Last destination vertical line output from last slice.
+ int flags; ///< Flags passed by the user to select scaler algorithm, optimizations, subsampling, etc...
void * yuvTable; // pointer to the yuv->rgb table start so it can be freed()
uint8_t * table_rV[256];
uint8_t * table_gU[256];
int contrast, brightness, saturation; // for sws_getColorspaceDetails
int srcColorspaceTable[4];
int dstColorspaceTable[4];
- int srcRange, dstRange;
+ int srcRange; ///< 0 = MPG YUV range, 1 = JPG YUV range (source image).
+ int dstRange; ///< 0 = MPG YUV range, 1 = JPG YUV range (destination image).
int yuv2rgb_y_offset;
int yuv2rgb_y_coeff;
int yuv2rgb_v2r_coeff;