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avcodec/ac3enc: Combine cpl_coord buffers

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Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2024-04-14 18:46:42 +02:00
parent 5b9fab0f07
commit da460fb95c
2 changed files with 7 additions and 8 deletions
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12
libavcodec/ac3enc.c
View File

@ -2194,8 +2194,7 @@ av_cold int ff_ac3_encode_close(AVCodecContext *avctx)
av_freep(&s->band_psd_buffer);
av_freep(&s->mask_buffer);
av_freep(&s->qmant_buffer);
av_freep(&s->cpl_coord_exp_buffer);
av_freep(&s->cpl_coord_mant_buffer);
av_freep(&s->cpl_coord_buffer);
av_freep(&s->fdsp);
av_tx_uninit(&s->tx);
@ -2439,6 +2438,7 @@ static av_cold int allocate_buffers(AC3EncodeContext *s)
int channels = s->channels + 1; /* includes coupling channel */
int channel_blocks = channels * s->num_blocks;
int total_coefs = AC3_MAX_COEFS * channel_blocks;
uint8_t *cpl_coord_mant_buffer;
const unsigned sampletype_size = SAMPLETYPE_SIZE(s);
for (int ch = 0; ch < s->channels; ch++) {
@ -2464,9 +2464,9 @@ static av_cold int allocate_buffers(AC3EncodeContext *s)
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))
if (!FF_ALLOC_TYPED_ARRAY(s->cpl_coord_buffer, channel_blocks * 32))
return AVERROR(ENOMEM);
cpl_coord_mant_buffer = s->cpl_coord_buffer + 16 * channel_blocks;
}
for (blk = 0; blk < s->num_blocks; blk++) {
AC3Block *block = &s->blocks[blk];
@ -2479,8 +2479,8 @@ static av_cold int allocate_buffers(AC3EncodeContext *s)
block->mask[ch] = &s->mask_buffer [64 * (blk * channels + ch)];
block->qmant[ch] = &s->qmant_buffer [AC3_MAX_COEFS * (blk * channels + ch)];
if (s->cpl_enabled) {
block->cpl_coord_exp[ch] = &s->cpl_coord_exp_buffer [16 * (blk * channels + ch)];
block->cpl_coord_mant[ch] = &s->cpl_coord_mant_buffer[16 * (blk * channels + ch)];
block->cpl_coord_exp[ch] = &s->cpl_coord_buffer [16 * (blk * channels + ch)];
block->cpl_coord_mant[ch] = &cpl_coord_mant_buffer[16 * (blk * channels + ch)];
}
/* arrangement: channel, block, coeff */

3
libavcodec/ac3enc.h
View File

@ -243,8 +243,7 @@ typedef struct AC3EncodeContext {
int16_t *band_psd_buffer;
int16_t *mask_buffer;
int16_t *qmant_buffer;
uint8_t *cpl_coord_exp_buffer;
uint8_t *cpl_coord_mant_buffer;
uint8_t *cpl_coord_buffer;
uint8_t exp_strategy[AC3_MAX_CHANNELS][AC3_MAX_BLOCKS]; ///< exponent strategies
uint8_t frame_exp_strategy[AC3_MAX_CHANNELS]; ///< frame exp strategy index