avcodec/roqaudioenc: unbreak mono encoding

2 years ago · 2b4273072d
parent a13210ab39
commit 2b4273072d
1 changed files with 1 additions and 1 deletions
--- a/libavcodec/roqaudioenc.c
+++ b/libavcodec/roqaudioenc.c
@ -174,7 +174,7 @@ static int roq_dpcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,

    /* Write the actual samples */
    for (i = 0; i < data_size; i++)
-        *out++ = dpcm_predict(&context->lastSample[i & 1], *in++);
+        *out++ = dpcm_predict(&context->lastSample[(i & 1) & stereo], *in++);

    avpkt->pts      = context->input_frames <= 7 ? context->first_pts : frame->pts;
    avpkt->duration = data_size / channels;