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Code Issues Releases Activity

avcodec/adpcm: Fixes output from Westwood ADPCM.

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Fixes bug #9198

Reviewed-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Signed-off-by: Aidan Richmond <aidan.is@hotmail.co.uk>
Signed-off-by: Zane van Iperen <zane@zanevaniperen.com>
This commit is contained in:
Aidan Richmond 2021-04-25 21:00:02 +01:00 committed by Zane van Iperen
parent 7a6ea6ce2a
commit 50442540d0
No known key found for this signature in database
GPG Key ID: 68616B2D8AC4DCC5
2 changed files with 43 additions and 43 deletions
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6
libavcodec/adpcm.c
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@ -1400,16 +1400,16 @@ static int adpcm_decode_frame(AVCodecContext *avctx, void *data,
for (n = nb_samples / 2; n > 0; n--) {
int v = bytestream2_get_byteu(&gb);
*smp++ = adpcm_ima_expand_nibble(&c->status[channel], v >> 4 , 3);
*smp++ = adpcm_ima_expand_nibble(&c->status[channel], v & 0x0F, 3);
*smp++ = adpcm_ima_expand_nibble(&c->status[channel], v >> 4 , 3);
}
}
} else {
for (n = nb_samples / 2; n > 0; n--) {
for (channel = 0; channel < avctx->channels; channel++) {
int v = bytestream2_get_byteu(&gb);
*samples++ = adpcm_ima_expand_nibble(&c->status[channel], v >> 4 , 3);
samples[st] = adpcm_ima_expand_nibble(&c->status[channel], v & 0x0F, 3);
*samples++ = adpcm_ima_expand_nibble(&c->status[channel], v & 0x0F, 3);
samples[st] = adpcm_ima_expand_nibble(&c->status[channel], v >> 4 , 3);
}
samples += avctx->channels;
}

80
tests/ref/fate/adpcm-ima-ws
View File

@ -4,43 +4,43 @@
#sample_rate 0: 22050
#channel_layout 0: 4
#channel_layout_name 0: mono
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0, 25724, 25724, 1470, 2940, 0x55510c6d
0, 27194, 27194, 1470, 2940, 0x417dca08
0, 28664, 28664, 1470, 2940, 0x794acbd6
0, 30134, 30134, 1470, 2940, 0x7de4a788
0, 31604, 31604, 1470, 2940, 0xeea8a64a
0, 33074, 33074, 1470, 2940, 0x1e45f779
0, 34544, 34544, 1470, 2940, 0x795eda85
0, 36014, 36014, 1470, 2940, 0xfe12f067
0, 37484, 37484, 1470, 2940, 0x5b3bee02
0, 38954, 38954, 1470, 2940, 0x6870b61c
0, 40424, 40424, 1470, 2940, 0xfcd8d411
0, 41894, 41894, 1470, 2940, 0x6433d298
0, 43364, 43364, 1470, 2940, 0xb810c944
0, 44834, 44834, 1470, 2940, 0xa0f2deab
0, 46304, 46304, 1470, 2940, 0x1c06b258
0, 47774, 47774, 1470, 2940, 0x0664b374
0, 49244, 49244, 1470, 2940, 0xaafad6c2
0, 50714, 50714, 1470, 2940, 0x7348e80a
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0, 56594, 56594, 1470, 2940, 0x71fada5c
0, 58064, 58064, 1470, 2940, 0x7ea7a8dd
0, 59534, 59534, 1470, 2940, 0x0e73c977
0, 61004, 61004, 1470, 2940, 0x2c09c91b
0, 62474, 62474, 1470, 2940, 0xade3bc63
0, 63944, 63944, 1470, 2940, 0x10049fba
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