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https://github.com/xenia-project/FFmpeg.git
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spelling/grammar cosmetics
Originally committed as revision 28351 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
This commit is contained in:
Diego Biurrun
parent
7a24ec506c
commit
f40c7dbb7e
@ -46,7 +46,7 @@ tested special converters (most are tested actually, but I did not write it down
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YVU9 -> YV12
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untested special converters
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YV12/I420 -> BGR15/BGR24/BGR32 (it is the yuv2rgb stuff, so it should be ok)
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YV12/I420 -> BGR15/BGR24/BGR32 (it is the yuv2rgb stuff, so it should be OK)
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YV12/I420 -> YV12/I420
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YUY2/BGR15/BGR24/BGR32/RGB24/RGB32 -> same format
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BGR24 -> BGR32 & RGB24 -> RGB32
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@ -89,9 +89,9 @@ unsigned swscale_version(void)
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//#define WORDS_BIGENDIAN
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#define DITHER1XBPP
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#define FAST_BGR2YV12 // use 7 bit coeffs instead of 15bit
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#define FAST_BGR2YV12 // use 7 bit coefficients instead of 15 bit
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#define RET 0xC3 //near return opcode for X86
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#define RET 0xC3 //near return opcode for x86
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#ifdef M_PI
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#define PI M_PI
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@ -194,10 +194,10 @@ Special versions: fast Y 1:1 scaling (no interpolation in y direction)
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TODO
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more intelligent misalignment avoidance for the horizontal scaler
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write special vertical cubic upscale version
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Optimize C code (yv12 / minmax)
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add support for packed pixel yuv input & output
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optimize C code (YV12 / minmax)
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add support for packed pixel YUV input & output
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add support for Y8 output
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optimize bgr24 & bgr32
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optimize BGR24 & BGR32
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add BGR4 output support
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write special BGR->BGR scaler
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*/
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@ -471,7 +471,7 @@ static inline void yuv2yuvXinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilt
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int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
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uint8_t *dest, uint8_t *uDest, uint8_t *vDest, int dstW, int chrDstW)
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{
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//FIXME Optimize (just quickly writen not opti..)
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//FIXME Optimize (just quickly written not optimized..)
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int i;
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for (i=0; i<dstW; i++)
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{
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@ -504,7 +504,7 @@ static inline void yuv2nv12XinC(int16_t *lumFilter, int16_t **lumSrc, int lumFil
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int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
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uint8_t *dest, uint8_t *uDest, int dstW, int chrDstW, int dstFormat)
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{
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//FIXME Optimize (just quickly writen not opti..)
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//FIXME Optimize (just quickly written not optimized..)
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int i;
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for (i=0; i<dstW; i++)
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{
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@ -653,7 +653,7 @@ static inline void yuv2nv12XinC(int16_t *lumFilter, int16_t **lumSrc, int lumFil
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}
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#define YSCALE_YUV_2_RGBX_C(type) \
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YSCALE_YUV_2_PACKEDX_C(type) /* FIXME fix tables so that cliping is not needed and then use _NOCLIP*/\
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YSCALE_YUV_2_PACKEDX_C(type) /* FIXME fix tables so that clipping is not needed and then use _NOCLIP*/\
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r = (type *)c->table_rV[V]; \
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g = (type *)(c->table_gU[U] + c->table_gV[V]); \
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b = (type *)c->table_bU[U]; \
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@ -953,7 +953,7 @@ static inline void yuv2rgbXinC_full(SwsContext *c, int16_t *lumFilter, int16_t *
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}
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}
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//Note: we have C, X86, MMX, MMX2, 3DNOW version therse no 3DNOW+MMX2 one
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//Note: we have C, X86, MMX, MMX2, 3DNOW versions, there is no 3DNOW+MMX2 one
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//Plain C versions
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#if !HAVE_MMX || defined (RUNTIME_CPUDETECT) || !CONFIG_GPL
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#define COMPILE_C
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@ -1004,7 +1004,7 @@ static inline void yuv2rgbXinC_full(SwsContext *c, int16_t *lumFilter, int16_t *
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#if ARCH_X86
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//X86 versions
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//x86 versions
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/*
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#undef RENAME
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#undef HAVE_MMX
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@ -1055,7 +1055,7 @@ static inline void yuv2rgbXinC_full(SwsContext *c, int16_t *lumFilter, int16_t *
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#endif //ARCH_X86
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// minor note: the HAVE_xyz is messed up after that line so don't use it
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// minor note: the HAVE_xyz are messed up after this line so don't use them
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static double getSplineCoeff(double a, double b, double c, double d, double dist)
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{
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@ -1085,7 +1085,7 @@ static inline int initFilter(int16_t **outFilter, int16_t **filterPos, int *outF
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__asm__ volatile("emms\n\t"::: "memory"); //FIXME this should not be required but it IS (even for non-MMX versions)
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#endif
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// Note the +1 is for the MMXscaler which reads over the end
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// NOTE: the +1 is for the MMX scaler which reads over the end
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*filterPos = av_malloc((dstW+1)*sizeof(int16_t));
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if (FFABS(xInc - 0x10000) <10) // unscaled
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@ -1134,7 +1134,7 @@ static inline int initFilter(int16_t **outFilter, int16_t **filterPos, int *outF
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int j;
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(*filterPos)[i]= xx;
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//Bilinear upscale / linear interpolate / Area averaging
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//bilinear upscale / linear interpolate / area averaging
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for (j=0; j<filterSize; j++)
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{
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int64_t coeff= fone - FFABS((xx<<16) - xDstInSrc)*(fone>>16);
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@ -1315,7 +1315,7 @@ static inline int initFilter(int16_t **outFilter, int16_t **filterPos, int *outF
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/* preserve monotonicity because the core can't handle the filter otherwise */
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if (i<dstW-1 && (*filterPos)[i] >= (*filterPos)[i+1]) break;
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// Move filter coeffs left
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// move filter coefficients left
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for (k=1; k<filter2Size; k++)
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filter2[i*filter2Size + k - 1]= filter2[i*filter2Size + k];
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filter2[i*filter2Size + k - 1]= 0;
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@ -1341,10 +1341,10 @@ static inline int initFilter(int16_t **outFilter, int16_t **filterPos, int *outF
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if (minFilterSize < 5)
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filterAlign = 4;
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// we really don't want to waste our time
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// doing useless computation, so fall-back on
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// the scalar C code for very small filter.
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// vectorizing is worth it only if you have
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// We really don't want to waste our time
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// doing useless computation, so fall back on
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// the scalar C code for very small filters.
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// Vectorizing is worth it only if you have a
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// decent-sized vector.
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if (minFilterSize < 3)
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filterAlign = 1;
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@ -1381,7 +1381,7 @@ static inline int initFilter(int16_t **outFilter, int16_t **filterPos, int *outF
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}
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//FIXME try to align filterpos if possible
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//FIXME try to align filterPos if possible
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//fix borders
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for (i=0; i<dstW; i++)
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@ -1389,7 +1389,7 @@ static inline int initFilter(int16_t **outFilter, int16_t **filterPos, int *outF
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int j;
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if ((*filterPos)[i] < 0)
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{
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// Move filter coeffs left to compensate for filterPos
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// move filter coefficients left to compensate for filterPos
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for (j=1; j<filterSize; j++)
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{
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int left= FFMAX(j + (*filterPos)[i], 0);
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@ -1402,7 +1402,7 @@ static inline int initFilter(int16_t **outFilter, int16_t **filterPos, int *outF
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if ((*filterPos)[i] + filterSize > srcW)
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{
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int shift= (*filterPos)[i] + filterSize - srcW;
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// Move filter coeffs right to compensate for filterPos
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// move filter coefficients right to compensate for filterPos
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for (j=filterSize-2; j>=0; j--)
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{
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int right= FFMIN(j + shift, filterSize-1);
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@ -1413,11 +1413,11 @@ static inline int initFilter(int16_t **outFilter, int16_t **filterPos, int *outF
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}
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}
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// Note the +1 is for the MMXscaler which reads over the end
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// Note the +1 is for the MMX scaler which reads over the end
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/* align at 16 for AltiVec (needed by hScale_altivec_real) */
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*outFilter= av_mallocz(*outFilterSize*(dstW+1)*sizeof(int16_t));
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/* Normalize & Store in outFilter */
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/* normalize & store in outFilter */
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for (i=0; i<dstW; i++)
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{
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int j;
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@ -2075,7 +2075,7 @@ static uint16_t roundToInt16(int64_t f){
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}
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/**
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* @param inv_table the yuv2rgb coeffs, normally Inverse_Table_6_9[x]
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* @param inv_table the yuv2rgb coefficients, normally Inverse_Table_6_9[x]
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* @param fullRange if 1 then the luma range is 0..255 if 0 it is 16..235
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* @return -1 if not supported
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*/
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@ -2242,7 +2242,7 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, int d
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|SWS_BICUBLIN);
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if(!i || (i & (i-1)))
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{
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av_log(NULL, AV_LOG_ERROR, "swScaler: Exactly one scaler algorithm must be choosen\n");
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av_log(NULL, AV_LOG_ERROR, "swScaler: Exactly one scaler algorithm must be chosen\n");
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return NULL;
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}
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@ -2254,7 +2254,7 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, int d
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return NULL;
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}
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if(srcW > VOFW || dstW > VOFW){
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av_log(NULL, AV_LOG_ERROR, "swScaler: Compile time max width is "AV_STRINGIFY(VOFW)" change VOF/VOFW and recompile\n");
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av_log(NULL, AV_LOG_ERROR, "swScaler: Compile-time maximum width is "AV_STRINGIFY(VOFW)" change VOF/VOFW and recompile\n");
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return NULL;
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}
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@ -2288,14 +2288,14 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, int d
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getSubSampleFactors(&c->chrSrcHSubSample, &c->chrSrcVSubSample, srcFormat);
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getSubSampleFactors(&c->chrDstHSubSample, &c->chrDstVSubSample, dstFormat);
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// reuse chroma for 2 pixles rgb/bgr unless user wants full chroma interpolation
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// reuse chroma for 2 pixels RGB/BGR unless user wants full chroma interpolation
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if ((isBGR(dstFormat) || isRGB(dstFormat)) && !(flags&SWS_FULL_CHR_H_INT)) c->chrDstHSubSample=1;
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// drop some chroma lines if the user wants it
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c->vChrDrop= (flags&SWS_SRC_V_CHR_DROP_MASK)>>SWS_SRC_V_CHR_DROP_SHIFT;
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c->chrSrcVSubSample+= c->vChrDrop;
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// drop every 2. pixel for chroma calculation unless user wants full chroma
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// drop every other pixel for chroma calculation unless user wants full chroma
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if ((isBGR(srcFormat) || isRGB(srcFormat)) && !(flags&SWS_FULL_CHR_H_INP)
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&& srcFormat!=PIX_FMT_RGB8 && srcFormat!=PIX_FMT_BGR8
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&& srcFormat!=PIX_FMT_RGB4 && srcFormat!=PIX_FMT_BGR4
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@ -2322,7 +2322,7 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, int d
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sws_setColorspaceDetails(c, Inverse_Table_6_9[SWS_CS_DEFAULT], srcRange, Inverse_Table_6_9[SWS_CS_DEFAULT] /* FIXME*/, dstRange, 0, 1<<16, 1<<16);
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/* unscaled special Cases */
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/* unscaled special cases */
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if (unscaled && !usesHFilter && !usesVFilter && (srcRange == dstRange || isBGR(dstFormat) || isRGB(dstFormat)))
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{
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/* yv12_to_nv12 */
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@ -2348,7 +2348,7 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, int d
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if (srcFormat==PIX_FMT_BGR24 && dstFormat==PIX_FMT_YUV420P && !(flags & SWS_ACCURATE_RND))
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c->swScale= bgr24toyv12Wrapper;
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/* rgb/bgr -> rgb/bgr (no dither needed forms) */
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/* RGB/BGR -> RGB/BGR (no dither needed forms) */
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if ( (isBGR(srcFormat) || isRGB(srcFormat))
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&& (isBGR(dstFormat) || isRGB(dstFormat))
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&& srcFormat != PIX_FMT_BGR8 && dstFormat != PIX_FMT_BGR8
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@ -2448,7 +2448,7 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, int d
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if (!c->canMMX2BeUsed && dstW >=srcW && (srcW&15)==0 && (flags&SWS_FAST_BILINEAR))
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{
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if (flags&SWS_PRINT_INFO)
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av_log(c, AV_LOG_INFO, "output Width is not a multiple of 32 -> no MMX2 scaler\n");
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av_log(c, AV_LOG_INFO, "output width is not a multiple of 32 -> no MMX2 scaler\n");
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}
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if (usesHFilter) c->canMMX2BeUsed=0;
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}
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@ -2471,7 +2471,7 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, int d
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c->lumXInc+= 20;
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c->chrXInc+= 20;
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}
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//we don't use the x86asm scaler if mmx is available
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//we don't use the x86 asm scaler if MMX is available
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else if (flags & SWS_CPU_CAPS_MMX)
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{
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c->lumXInc = ((srcW-2)<<16)/(dstW-2) - 20;
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@ -2517,7 +2517,7 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, int d
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initMMX2HScaler(c->chrDstW, c->chrXInc, c->funnyUVCode, c->chrMmx2Filter, c->chrMmx2FilterPos, 4);
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}
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#endif /* defined(COMPILE_MMX2) */
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} // Init Horizontal stuff
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} // initialize horizontal stuff
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@ -2557,7 +2557,7 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, int d
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#endif
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}
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// Calculate Buffer Sizes so that they won't run out while handling these damn slices
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// calculate buffer sizes so that they won't run out while handling these damn slices
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c->vLumBufSize= c->vLumFilterSize;
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c->vChrBufSize= c->vChrFilterSize;
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for (i=0; i<dstH; i++)
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@ -2577,7 +2577,7 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, int d
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// allocate pixbufs (we use dynamic allocation because otherwise we would need to
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c->lumPixBuf= av_malloc(c->vLumBufSize*2*sizeof(int16_t*));
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c->chrPixBuf= av_malloc(c->vChrBufSize*2*sizeof(int16_t*));
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//Note we need at least one pixel more at the end because of the mmx code (just in case someone wanna replace the 4000/8000)
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//Note we need at least one pixel more at the end because of the MMX code (just in case someone wanna replace the 4000/8000)
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/* align at 16 bytes for AltiVec */
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for (i=0; i<c->vLumBufSize; i++)
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c->lumPixBuf[i]= c->lumPixBuf[i+c->vLumBufSize]= av_mallocz(VOF+1);
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@ -2668,7 +2668,7 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, int d
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else
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{
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#if ARCH_X86
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av_log(c, AV_LOG_VERBOSE, "using X86-Asm scaler for horizontal scaling\n");
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av_log(c, AV_LOG_VERBOSE, "using x86 asm scaler for horizontal scaling\n");
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#else
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if (flags & SWS_FAST_BILINEAR)
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av_log(c, AV_LOG_VERBOSE, "using FAST_BILINEAR C scaler for horizontal scaling\n");
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@ -2695,22 +2695,22 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, int d
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}
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if (dstFormat==PIX_FMT_BGR24)
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av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR24 Converter\n",
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av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR24 converter\n",
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(flags & SWS_CPU_CAPS_MMX2) ? "MMX2" : ((flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C"));
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else if (dstFormat==PIX_FMT_RGB32)
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av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR32 Converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
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av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR32 converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
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else if (dstFormat==PIX_FMT_BGR565)
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av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR16 Converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
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av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR16 converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
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else if (dstFormat==PIX_FMT_BGR555)
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av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR15 Converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
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av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR15 converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
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av_log(c, AV_LOG_VERBOSE, "%dx%d -> %dx%d\n", srcW, srcH, dstW, dstH);
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}
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if (flags & SWS_PRINT_INFO)
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{
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av_log(c, AV_LOG_DEBUG, "Lum srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
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av_log(c, AV_LOG_DEBUG, "lum srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
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c->srcW, c->srcH, c->dstW, c->dstH, c->lumXInc, c->lumYInc);
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av_log(c, AV_LOG_DEBUG, "Chr srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
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av_log(c, AV_LOG_DEBUG, "chr srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
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c->chrSrcW, c->chrSrcH, c->chrDstW, c->chrDstH, c->chrXInc, c->chrYInc);
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}
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@ -2720,7 +2720,7 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, int d
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/**
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* swscale wrapper, so we don't need to export the SwsContext.
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* assumes planar YUV to be in YUV order instead of YVU
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* Assumes planar YUV to be in YUV order instead of YVU.
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*/
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int sws_scale(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
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int srcSliceH, uint8_t* dst[], int dstStride[]){
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@ -2820,7 +2820,7 @@ int sws_scale(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
|
||||
}
|
||||
|
||||
/**
|
||||
* swscale wrapper, so we don't need to export the SwsContext
|
||||
* swscale wrapper, so we don't need to export the SwsContext.
|
||||
*/
|
||||
int sws_scale_ordered(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
|
||||
int srcSliceH, uint8_t* dst[], int dstStride[]){
|
||||
@ -2886,8 +2886,8 @@ SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur,
|
||||
}
|
||||
|
||||
/**
|
||||
* returns a normalized gaussian curve used to filter stuff
|
||||
* quality=3 is high quality, lowwer is lowwer quality
|
||||
* Returns a normalized Gaussian curve used to filter stuff
|
||||
* quality=3 is high quality, lower is lower quality.
|
||||
*/
|
||||
SwsVector *sws_getGaussianVec(double variance, double quality){
|
||||
const int length= (int)(variance*quality + 0.5) | 1;
|
||||
@ -3168,7 +3168,7 @@ void sws_freeContext(SwsContext *c){
|
||||
/**
|
||||
* Checks if context is valid or reallocs a new one instead.
|
||||
* If context is NULL, just calls sws_getContext() to get a new one.
|
||||
* Otherwise, checks if the parameters are the same already saved in context.
|
||||
* Otherwise, checks if the parameters are the ones already saved in context.
|
||||
* If that is the case, returns the current context.
|
||||
* Otherwise, frees context and gets a new one.
|
||||
*
|
||||
|
||||
Loading…
Reference in New Issue
Block a user