[FFmpeg-cvslog] r9893 - trunk/libavcodec/ac3dec.c
jbr
subversion
Sat Aug 4 14:04:41 CEST 2007
Author: jbr
Date: Sat Aug 4 14:04:41 2007
New Revision: 9893
Log:
cosmetics: use braces when it makes the code easier to read.
Modified:
trunk/libavcodec/ac3dec.c
Modified: trunk/libavcodec/ac3dec.c
==============================================================================
--- trunk/libavcodec/ac3dec.c (original)
+++ trunk/libavcodec/ac3dec.c Sat Aug 4 14:04:41 2007
@@ -572,8 +572,9 @@ static int get_transform_coeffs(AC3Decod
got_cplchan = 1;
}
end = ctx->cplendmant;
- } else
+ } else {
end = ctx->endmant[i];
+ }
do
ctx->transform_coeffs[i + 1][end] = 0;
while(++end < 256);
@@ -673,13 +674,13 @@ static inline void do_imdct(AC3DecodeCon
ctx->window, 256);
}
for (ch=1; ch<=ctx->nfchans; ch++) {
- if (ctx->blksw[ch-1])
+ if (ctx->blksw[ch-1]) {
do_imdct_256(ctx, ch);
- else
+ } else {
ctx->imdct_512.fft.imdct_calc(&ctx->imdct_512, ctx->tmp_output,
ctx->transform_coeffs[ch],
ctx->tmp_imdct);
-
+ }
ctx->dsp.vector_fmul_add_add(ctx->output[ch], ctx->tmp_output,
ctx->window, ctx->delay[ch], 384, 256, 1);
ctx->dsp.vector_fmul_reverse(ctx->delay[ch], ctx->tmp_output+256,
@@ -749,11 +750,12 @@ static int ac3_parse_audio_block(AC3Deco
ctx->ncplbnd = ctx->ncplsubnd = 3 + cplendf - cplbegf;
ctx->cplstrtmant = cplbegf * 12 + 37;
ctx->cplendmant = cplendf * 12 + 73;
- for (i = 0; i < ctx->ncplsubnd - 1; i++) /* coupling band structure */
+ for (i = 0; i < ctx->ncplsubnd - 1; i++) { /* coupling band structure */
if (get_bits1(gb)) {
ctx->cplbndstrc[i] = 1;
ctx->ncplbnd--;
}
+ }
} else {
for (i = 0; i < nfchans; i++)
ctx->chincpl[i] = 0;
@@ -763,8 +765,8 @@ static int ac3_parse_audio_block(AC3Deco
if (ctx->cplinu) {
int cplcoe = 0;
- for (i = 0; i < nfchans; i++)
- if (ctx->chincpl[i])
+ for (i = 0; i < nfchans; i++) {
+ if (ctx->chincpl[i]) {
if (get_bits1(gb)) { /* coupling co-ordinates */
cplcoe = 1;
mstrcplco = 3 * get_bits(gb, 2);
@@ -778,11 +780,15 @@ static int ac3_parse_audio_block(AC3Deco
ctx->cplco[i][bnd] *= scale_factors[cplcoexp + mstrcplco];
}
}
+ }
+ }
- if (acmod == AC3_ACMOD_STEREO && ctx->phsflginu && cplcoe)
- for (bnd = 0; bnd < ctx->ncplbnd; bnd++)
+ if (acmod == AC3_ACMOD_STEREO && ctx->phsflginu && cplcoe) {
+ for (bnd = 0; bnd < ctx->ncplbnd; bnd++) {
if (get_bits1(gb))
ctx->cplco[1][bnd] = -ctx->cplco[1][bnd];
+ }
+ }
}
if (acmod == AC3_ACMOD_STEREO) {/* rematrixing */
@@ -805,7 +811,7 @@ static int ac3_parse_audio_block(AC3Deco
if (ctx->lfeon) /* lfe exponent strategy */
ctx->lfeexpstr = get_bits1(gb);
- for (i = 0; i < nfchans; i++) /* channel bandwidth code */
+ for (i = 0; i < nfchans; i++) { /* channel bandwidth code */
if (ctx->chexpstr[i] != EXP_REUSE) {
if (ctx->chincpl[i])
ctx->endmant[i] = ctx->cplstrtmant;
@@ -818,6 +824,7 @@ static int ac3_parse_audio_block(AC3Deco
ctx->endmant[i] = chbwcod * 3 + 73;
}
}
+ }
if (ctx->cplexpstr != EXP_REUSE) {/* coupling exponents */
bit_alloc_flags = 64;
@@ -826,7 +833,7 @@ static int ac3_parse_audio_block(AC3Deco
decode_exponents(gb, ctx->cplexpstr, ngrps, cplabsexp, ctx->dcplexps + ctx->cplstrtmant);
}
- for (i = 0; i < nfchans; i++) /* fbw channel exponents */
+ for (i = 0; i < nfchans; i++) { /* fbw channel exponents */
if (ctx->chexpstr[i] != EXP_REUSE) {
bit_alloc_flags |= 1 << i;
grpsize = 3 << (ctx->chexpstr[i] - 1);
@@ -836,6 +843,7 @@ static int ac3_parse_audio_block(AC3Deco
decode_exponents(gb, ctx->chexpstr[i], ngrps, dexps[0], dexps + 1);
skip_bits(gb, 2); /* skip gainrng */
}
+ }
if (ctx->lfeexpstr != EXP_REUSE) { /* lfe exponents */
bit_alloc_flags |= 32;
@@ -895,7 +903,7 @@ static int ac3_parse_audio_block(AC3Deco
}
}
- if (ctx->cplinu)
+ if (ctx->cplinu) {
if (ctx->cpldeltbae == DBA_NEW) { /*coupling delta offset, len and bit allocation */
ctx->cpldeltnseg = get_bits(gb, 3);
for (seg = 0; seg <= ctx->cpldeltnseg; seg++) {
@@ -904,8 +912,9 @@ static int ac3_parse_audio_block(AC3Deco
ctx->cpldeltba[seg] = get_bits(gb, 3);
}
}
+ }
- for (i = 0; i < nfchans; i++)
+ for (i = 0; i < nfchans; i++) {
if (ctx->deltbae[i] == DBA_NEW) {/*channel delta offset, len and bit allocation */
ctx->deltnseg[i] = get_bits(gb, 3);
for (seg = 0; seg <= ctx->deltnseg[i]; seg++) {
@@ -914,6 +923,7 @@ static int ac3_parse_audio_block(AC3Deco
ctx->deltba[i][seg] = get_bits(gb, 3);
}
}
+ }
} else if(blk == 0) {
if(ctx->cplinu)
ctx->cpldeltbae = DBA_NONE;
@@ -923,7 +933,7 @@ static int ac3_parse_audio_block(AC3Deco
}
if (bit_alloc_flags) {
- if (ctx->cplinu && (bit_alloc_flags & 64))
+ if (ctx->cplinu && (bit_alloc_flags & 64)) {
ac3_parametric_bit_allocation(&ctx->bit_alloc_params, ctx->cplbap,
ctx->dcplexps, ctx->cplstrtmant,
ctx->cplendmant, ctx->cplsnroffst,
@@ -931,19 +941,23 @@ static int ac3_parse_audio_block(AC3Deco
ctx->cpldeltbae, ctx->cpldeltnseg,
ctx->cpldeltoffst, ctx->cpldeltlen,
ctx->cpldeltba);
- for (i = 0; i < nfchans; i++)
- if ((bit_alloc_flags >> i) & 1)
+ }
+ for (i = 0; i < nfchans; i++) {
+ if ((bit_alloc_flags >> i) & 1) {
ac3_parametric_bit_allocation(&ctx->bit_alloc_params,
ctx->bap[i], ctx->dexps[i], 0,
ctx->endmant[i], ctx->snroffst[i],
ctx->fgain[i], 0, ctx->deltbae[i],
ctx->deltnseg[i], ctx->deltoffst[i],
ctx->deltlen[i], ctx->deltba[i]);
- if (ctx->lfeon && (bit_alloc_flags & 32))
+ }
+ }
+ if (ctx->lfeon && (bit_alloc_flags & 32)) {
ac3_parametric_bit_allocation(&ctx->bit_alloc_params, ctx->lfebap,
ctx->dlfeexps, 0, 7, ctx->lfesnroffst,
ctx->lfefgain, 1,
DBA_NONE, 0, NULL, NULL, NULL);
+ }
}
if (get_bits1(gb)) { /* unused dummy data */
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