From af60dd84194b8ae6a3c1bf4ee474bc06bcf7023d Mon Sep 17 00:00:00 2001 From: James Almer Date: Sat, 27 Dec 2025 17:08:30 -0300 Subject: [PATCH] avformat/iamf_parse: fix setting denominator in AVIAMFLayer.demixing_matrix The format of demixing_matrix is Q15 fixed point values. Signed-off-by: James Almer (cherry picked from commit 03a981445ee89a567e5a98ec88cbbbb8d3e3af72) --- libavformat/iamf_parse.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/iamf_parse.c b/libavformat/iamf_parse.c index 597d800be0..65dbfa0d1e 100644 --- a/libavformat/iamf_parse.c +++ b/libavformat/iamf_parse.c @@ -555,7 +555,7 @@ static int ambisonics_config(void *s, AVIOContext *pb, return AVERROR(ENOMEM); for (int i = 0; i < demixing_matrix_size; i++) - layer->demixing_matrix[i] = av_make_q(sign_extend(avio_rb16(pb), 16), 1 << 8); + layer->demixing_matrix[i] = av_make_q(sign_extend(avio_rb16(pb), 16), 1 << 15); for (int i = 0; i < substream_count; i++) { IAMFSubStream *substream = &audio_element->substreams[i];