From bb5efd1727eeecc9be8f1402810c7ab72344eed3 Mon Sep 17 00:00:00 2001 From: Jeremy Dorfman via ffmpeg-devel Date: Mon, 8 Apr 2019 08:14:27 -0400 Subject: [PATCH] avformat/av1: Initialize padding in ff_isom_write_av1c Otherwise, AV1 encodes with FFmpeg trigger use-of-uninitialized-value warnings under MemorySanitizer, and the output buffer potentially changes from run to run. Signed-off-by: James Almer --- libavformat/av1.c | 1 + 1 file changed, 1 insertion(+) diff --git a/libavformat/av1.c b/libavformat/av1.c index a0aad436a6..5fde8df97e 100644 --- a/libavformat/av1.c +++ b/libavformat/av1.c @@ -372,6 +372,7 @@ int ff_isom_write_av1c(AVIOContext *pb, const uint8_t *buf, int size) put_bits(&pbc, 1, seq_params.chroma_subsampling_x); put_bits(&pbc, 1, seq_params.chroma_subsampling_y); put_bits(&pbc, 2, seq_params.chroma_sample_position); + put_bits(&pbc, 8, 0); // padding flush_put_bits(&pbc); avio_write(pb, header, sizeof(header));