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ffmpeg.wasm-core
Commit 251d75f2 authored by Vitor Sessak's avatar Vitor Sessak
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Reindent mace.c, its indentation was completly inconsistent with the coding rules. 

Originally committed as revision 15204 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent b0880d5d
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libavcodec/mace.c
View file @ 251d75f2
...@@ -236,124 +236,124 @@ static const uint16_t MACEtab4[][8] = { ...@@ -236,124 +236,124 @@ static const uint16_t MACEtab4[][8] = {
/* end of constants */ /* end of constants */
typedef struct MACEContext { typedef struct MACEContext {
short index, lev, factor, prev2, previous, level; short index, lev, factor, prev2, previous, level;
short *outPtr; short *outPtr;
} MACEContext; } MACEContext;
/* /// "chomp3()" */ /* /// "chomp3()" */
static void chomp3(MACEContext *ctx, static void chomp3(MACEContext *ctx, uint8_t val, const uint16_t tab1[],
uint8_t val, const uint16_t tab2[][8], uint32_t numChannels)
const uint16_t tab1[],
const uint16_t tab2[][8],
uint32_t numChannels)
{ {
short current; short current;
current=(short)tab2[(ctx->index & 0x7f0) >> 4][val]; current = (short) tab2[(ctx->index & 0x7f0) >> 4][val];
if (current+ctx->lev > 32767) current=32767;
else if (current+ctx->lev < -32768) current=-32767; if (current + ctx->lev > 32767)
else current+=ctx->lev; current = 32767;
ctx->lev=current-(current >> 3); else if (current + ctx->lev < -32768)
// *ctx->outPtr++=current >> 8; current = -32767;
*ctx->outPtr=current; else
ctx->outPtr+=numChannels; current += ctx->lev;
if ( ( ctx->index += tab1[val]-(ctx->index>>5) ) < 0 ) ctx->index = 0;
ctx->lev = current - (current >> 3);
//*ctx->outPtr++=current >> 8;
*ctx->outPtr = current;
ctx->outPtr += numChannels;
if (( ctx->index += tab1[val]-(ctx->index >> 5) ) < 0)
ctx->index = 0;
} }
/* \\\ */ /* \\\ */
/* /// "Exp1to3()" */ /* /// "Exp1to3()" */
static void Exp1to3(MACEContext *ctx, static void Exp1to3(MACEContext *ctx, const uint8_t *inBuffer, void *outBuffer,
const uint8_t *inBuffer, uint32_t cnt, uint32_t numChannels, uint32_t whichChannel)
void *outBuffer,
uint32_t cnt,
uint32_t numChannels,
uint32_t whichChannel)
{ {
uint8_t pkt; uint8_t pkt;
/* /*
if (inState) { if (inState) {
ctx->index=inState[0]; ctx->index=inState[0];
ctx->lev=inState[1]; ctx->lev=inState[1];
} else } else
*/ */
ctx->index=ctx->lev=0; ctx->index = ctx->lev = 0;
inBuffer+=(whichChannel-1)*2; inBuffer += (whichChannel - 1)*2;
ctx->outPtr=outBuffer; ctx->outPtr = outBuffer;
while (cnt>0) { while (cnt > 0) {
pkt=inBuffer[0]; pkt=inBuffer[0];
chomp3(ctx, pkt & 7, MACEtab1, MACEtab2, numChannels); chomp3(ctx, pkt & 7, MACEtab1, MACEtab2, numChannels);
chomp3(ctx,(pkt >> 3) & 3, MACEtab3, MACEtab4, numChannels); chomp3(ctx,(pkt >> 3) & 3, MACEtab3, MACEtab4, numChannels);
chomp3(ctx, pkt >> 5 , MACEtab1, MACEtab2, numChannels); chomp3(ctx, pkt >> 5 , MACEtab1, MACEtab2, numChannels);
pkt=inBuffer[1]; pkt=inBuffer[1];
chomp3(ctx, pkt & 7, MACEtab1, MACEtab2, numChannels); chomp3(ctx, pkt & 7, MACEtab1, MACEtab2, numChannels);
chomp3(ctx,(pkt >> 3) & 3, MACEtab3, MACEtab4, numChannels); chomp3(ctx,(pkt >> 3) & 3, MACEtab3, MACEtab4, numChannels);
chomp3(ctx, pkt >> 5 , MACEtab1, MACEtab2, numChannels); chomp3(ctx, pkt >> 5 , MACEtab1, MACEtab2, numChannels);
inBuffer+=numChannels*2; inBuffer += numChannels*2;
--cnt; --cnt;
} }
/* /*
if (outState) { if (outState) {
outState[0]=ctx->index; outState[0]=ctx->index;
outState[1]=ctx->lev; outState[1]=ctx->lev;
} }
*/ */
} }
/* \\\ */ /* \\\ */
/* /// "chomp6()" */ /* /// "chomp6()" */
static void chomp6(MACEContext *ctx, static void chomp6(MACEContext *ctx, uint8_t val, const uint16_t tab1[],
uint8_t val, const uint16_t tab2[][8], uint32_t numChannels)
const uint16_t tab1[],
const uint16_t tab2[][8],
uint32_t numChannels)
{ {
short current; short current;
current=(short)tab2[(ctx->index & 0x7f0) >> 4][val]; current = (short)tab2[(ctx->index & 0x7f0) >> 4][val];
if ((ctx->previous^current)>=0) { if ((ctx->previous ^ current) >= 0) {
if (ctx->factor+506>32767) ctx->factor=32767; if (ctx->factor + 506 > 32767)
else ctx->factor+=506; ctx->factor = 32767;
} else { else
if (ctx->factor-314<-32768) ctx->factor=-32767; ctx->factor += 506;
else ctx->factor-=314; } else {
} if (ctx->factor - 314 < -32768)
ctx->factor = -32767;
else
ctx->factor -= 314;
}
if (current+ctx->level>32767) current=32767; if (current + ctx->level > 32767)
else if (current+ctx->level<-32768) current=-32767; current = 32767;
else current+=ctx->level; else if (current + ctx->level < -32768)
current = -32767;
else
current += ctx->level;
ctx->level=((current*ctx->factor) >> 15); ctx->level = ((current*ctx->factor) >> 15);
current>>=1; current >>= 1;
// *ctx->outPtr++=(ctx->previous+ctx->prev2-((ctx->prev2-current) >> 2)) >> 8; // *ctx->outPtr++=(ctx->previous+ctx->prev2-((ctx->prev2-current) >> 2)) >> 8;
// *ctx->outPtr++=(ctx->previous+current+((ctx->prev2-current) >> 2)) >> 8; // *ctx->outPtr++=(ctx->previous+current+((ctx->prev2-current) >> 2)) >> 8;
*ctx->outPtr=(ctx->previous+ctx->prev2-((ctx->prev2-current) >> 2)); *ctx->outPtr = (ctx->previous + ctx->prev2 - ((ctx->prev2-current) >> 2));
ctx->outPtr+=numChannels; ctx->outPtr += numChannels;
*ctx->outPtr=(ctx->previous+current+((ctx->prev2-current) >> 2)); *ctx->outPtr = (ctx->previous + current + ((ctx->prev2-current) >> 2));
ctx->outPtr+=numChannels; ctx->outPtr += numChannels;
ctx->prev2=ctx->previous; ctx->prev2 = ctx->previous;
ctx->previous=current; ctx->previous = current;
if( ( ctx->index += tab1[val]-(ctx->index>>5) ) < 0 ) ctx->index = 0; if ((ctx->index += tab1[val] - (ctx->index >> 5)) < 0)
ctx->index = 0;
} }
/* \\\ */ /* \\\ */
/* /// "Exp1to6()" */ /* /// "Exp1to6()" */
static void Exp1to6(MACEContext *ctx, static void Exp1to6(MACEContext *ctx, const uint8_t *inBuffer, void *outBuffer,
const uint8_t *inBuffer, uint32_t cnt, uint32_t numChannels, uint32_t whichChannel)
void *outBuffer,
uint32_t cnt,
uint32_t numChannels,
uint32_t whichChannel)
{ {
uint8_t pkt; uint8_t pkt;
/* /*
if (inState) { if (inState) {
...@@ -364,21 +364,21 @@ static void Exp1to6(MACEContext *ctx, ...@@ -364,21 +364,21 @@ static void Exp1to6(MACEContext *ctx,
ctx->factor=inState[4]; ctx->factor=inState[4];
} else } else
*/ */
ctx->previous=ctx->prev2=ctx->index=ctx->level=ctx->factor=0; ctx->previous = ctx->prev2 = ctx->index = ctx->level = ctx->factor = 0;
inBuffer+=(whichChannel-1); inBuffer += (whichChannel - 1);
ctx->outPtr=outBuffer; ctx->outPtr = outBuffer;
while (cnt>0) { while (cnt>0) {
pkt=*inBuffer; pkt = *inBuffer;
chomp6(ctx, pkt >> 5 , MACEtab1, MACEtab2, numChannels); chomp6(ctx, pkt >> 5 , MACEtab1, MACEtab2, numChannels);
chomp6(ctx,(pkt >> 3) & 3, MACEtab3, MACEtab4, numChannels); chomp6(ctx,(pkt >> 3) & 3, MACEtab3, MACEtab4, numChannels);
chomp6(ctx, pkt & 7, MACEtab1, MACEtab2, numChannels); chomp6(ctx, pkt & 7, MACEtab1, MACEtab2, numChannels);
inBuffer+=numChannels; inBuffer += numChannels;
--cnt; --cnt;
} }
/* /*
if (outState) { if (outState) {
......
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