[FFmpeg-devel] [PATCH v3 3/3] avcodec/adpcm: Fixes output from Westwood ADPCM.

Aidan Richmond aidan.is at hotmail.co.uk
Sun Apr 25 00:54:56 EEST 2021


Fixes bug #9198

Signed-off-by: Aidan Richmond <aidan.is at hotmail.co.uk>
---
 libavcodec/adpcm.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/libavcodec/adpcm.c b/libavcodec/adpcm.c
index be14607eac..5ec9691001 100644
--- a/libavcodec/adpcm.c
+++ b/libavcodec/adpcm.c
@@ -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;
             }
-- 
2.16.1.windows.1



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