Module: libav Branch: master Commit: a46a4f722d2fac07c57990f0f548777622599f59
Author: Luca Barbato <[email protected]> Committer: Luca Barbato <[email protected]> Date: Tue Mar 14 09:15:30 2017 +0000 dca: Refactor dca_filter_channels() a little Signed-off-by: Luca Barbato <[email protected]> --- libavcodec/dcadec.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/libavcodec/dcadec.c b/libavcodec/dcadec.c index af26dce..fa2a240 100644 --- a/libavcodec/dcadec.c +++ b/libavcodec/dcadec.c @@ -947,15 +947,16 @@ static int dca_filter_channels(DCAContext *s, int block_index, int upsample) /* 64 subbands QMF */ for (k = 0; k < s->audio_header.prim_channels; k++) { + int channel = s->channel_order_tab[k]; int32_t (*subband_samples)[SAMPLES_PER_SUBBAND] = s->dca_chan[k].subband_samples[block_index]; s->fmt_conv.int32_to_float(samples[0], subband_samples[0], DCA_SUBBANDS_X96K * SAMPLES_PER_SUBBAND); - if (s->channel_order_tab[k] >= 0) + if (channel >= 0) qmf_64_subbands(s, k, samples, - s->samples_chanptr[s->channel_order_tab[k]], + s->samples_chanptr[channel], /* Upsampling needs a factor 2 here. */ M_SQRT2 / 32768.0); } @@ -964,15 +965,16 @@ static int dca_filter_channels(DCAContext *s, int block_index, int upsample) LOCAL_ALIGNED(32, float, samples, [DCA_SUBBANDS], [SAMPLES_PER_SUBBAND]); for (k = 0; k < s->audio_header.prim_channels; k++) { + int channel = s->channel_order_tab[k]; int32_t (*subband_samples)[SAMPLES_PER_SUBBAND] = s->dca_chan[k].subband_samples[block_index]; s->fmt_conv.int32_to_float(samples[0], subband_samples[0], DCA_SUBBANDS * SAMPLES_PER_SUBBAND); - if (s->channel_order_tab[k] >= 0) + if (channel >= 0) qmf_32_subbands(s, k, samples, - s->samples_chanptr[s->channel_order_tab[k]], + s->samples_chanptr[channel], M_SQRT1_2 / 32768.0); } } _______________________________________________ libav-commits mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-commits
