This simplifies the following commits
Signed-off-by: Michael Niedermayer <[email protected]>
---
libavradio/sdrdemux.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/libavradio/sdrdemux.c b/libavradio/sdrdemux.c
index 92b218d899..ef8a8a91d3 100644
--- a/libavradio/sdrdemux.c
+++ b/libavradio/sdrdemux.c
@@ -983,15 +983,17 @@ static int demodulate_fm(SDRContext *sdr, int
stream_index, AVPacket *pkt)
carrier19_i = lrint(carrier19_i_exact);
if (carrier19_i >= 0) {
- int shift = carrier19_i/2;
i = sst->block_size;
memset(sst->block + i, 0, 2*sst->block_size_p2 *
sizeof(AVComplexFloat));
- memcpy(sst->block + i + carrier19_i - W - shift , sst->block +
carrier19_i - W, sizeof(AVComplexFloat)*(2*W+1));
+ memcpy(sst->block + i, sst->block + carrier19_i,
sizeof(AVComplexFloat)*(W+1));
+ memcpy(sst->block + i + 2*sst->block_size_p2 - W, sst->block +
carrier19_i - W, sizeof(AVComplexFloat)*W);
sst->ifft_p2(sst->ifft_p2_ctx, sst->icarrier, sst->block + i,
sizeof(AVComplexFloat));
- memcpy(sst->block + i + 2*carrier19_i - 2*shift - len17_i, sst->block
+ 2*carrier19_i - len17_i, sizeof(AVComplexFloat)*2*len17_i);
- apply_deemphasis(sdr, sst->block + i + 2*carrier19_i - 2*shift,
sst->block_size_p2, sample_rate_p2, + 1);
- apply_deemphasis(sdr, sst->block + i + 2*carrier19_i - 2*shift,
sst->block_size_p2, sample_rate_p2, - 1);
+ memcpy(sst->block + i, sst->block + 2*carrier19_i,
sizeof(AVComplexFloat)*len17_i);
+ memcpy(sst->block + i + 2*sst->block_size_p2 - len17_i, sst->block +
2*carrier19_i - len17_i, sizeof(AVComplexFloat)*len17_i);
+
+ apply_deemphasis(sdr, sst->block + i, sst->block_size_p2,
sample_rate_p2, + 1);
+ apply_deemphasis(sdr, sst->block + i + 2*sst->block_size_p2,
sst->block_size_p2, sample_rate_p2, - 1);
sst->ifft_p2(sst->ifft_p2_ctx, sst->iside , sst->block + i,
sizeof(AVComplexFloat));
synchronous_am_demodulationN(sst->iside, sst->icarrier,
sst->window_p2, 2*sst->block_size_p2, 2);
}
--
2.31.1
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