[FFmpeg-devel] [PATCH 6/7] avcodec/adpcm_ima_wav: support variable block size for encoding

Zane van Iperen zane at zanevaniperen.com
Wed Oct 14 16:10:40 EEST 2020


Signed-off-by: Zane van Iperen <zane at zanevaniperen.com>
---
 libavcodec/adpcmenc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavcodec/adpcmenc.c b/libavcodec/adpcmenc.c
index 800a9b0b00..83c7e7ee05 100644
--- a/libavcodec/adpcmenc.c
+++ b/libavcodec/adpcmenc.c
@@ -113,11 +113,11 @@ static av_cold int adpcm_encode_init(AVCodecContext *avctx)
     case AV_CODEC_ID_ADPCM_IMA_WAV:
         /* each 16 bits sample gives one nibble
            and we have 4 bytes per channel overhead */
-        avctx->frame_size = (BLKSIZE - 4 * avctx->channels) * 8 /
+        avctx->frame_size = (s->block_size - 4 * avctx->channels) * 8 /
                             (4 * avctx->channels) + 1;
         /* seems frame_size isn't taken into account...
            have to buffer the samples :-( */
-        avctx->block_align = BLKSIZE;
+        avctx->block_align = s->block_size;
         avctx->bits_per_coded_sample = 4;
         break;
     case AV_CODEC_ID_ADPCM_IMA_QT:
-- 
2.25.4




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