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avcodec/ac3enc: Combine loops 

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2024-04-14 18:31:03 +02:00
parent 79d1814b71
commit 5b9fab0f07
1 changed files with 7 additions and 17 deletions
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24
libavcodec/ac3enc.c
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@ -2459,6 +2459,10 @@ static av_cold int allocate_buffers(AC3EncodeContext *s)
!FF_ALLOC_TYPED_ARRAY(s->qmant_buffer, total_coefs))
return AVERROR(ENOMEM);
if (!s->fixed_point) {
if (!FF_ALLOCZ_TYPED_ARRAY(s->fixed_coef_buffer, total_coefs))
return AVERROR(ENOMEM);
}
if (s->cpl_enabled) {
if (!FF_ALLOC_TYPED_ARRAY(s->cpl_coord_exp_buffer, channel_blocks * 16) ||
!FF_ALLOC_TYPED_ARRAY(s->cpl_coord_mant_buffer, channel_blocks * 16))
@ -2482,24 +2486,10 @@ static av_cold int allocate_buffers(AC3EncodeContext *s)
/* arrangement: channel, block, coeff */
block->exp[ch] = &s->exp_buffer [AC3_MAX_COEFS * (s->num_blocks * ch + blk)];
block->mdct_coef[ch] = &s->mdct_coef_buffer [AC3_MAX_COEFS * (s->num_blocks * ch + blk)];
}
}
if (!s->fixed_point) {
if (!FF_ALLOCZ_TYPED_ARRAY(s->fixed_coef_buffer, total_coefs))
return AVERROR(ENOMEM);
for (blk = 0; blk < s->num_blocks; blk++) {
AC3Block *block = &s->blocks[blk];
for (ch = 0; ch < channels; ch++)
block->fixed_coef[ch] = &s->fixed_coef_buffer[AC3_MAX_COEFS * (s->num_blocks * ch + blk)];
}
} else {
for (blk = 0; blk < s->num_blocks; blk++) {
AC3Block *block = &s->blocks[blk];
for (ch = 0; ch < channels; ch++)
if (s->fixed_point)
block->fixed_coef[ch] = (int32_t *)block->mdct_coef[ch];
else
block->fixed_coef[ch] = &s->fixed_coef_buffer[AC3_MAX_COEFS * (s->num_blocks * ch + blk)];
}
}