From 65d36473c930b2cefaab96da8e514cd200330c94 Mon Sep 17 00:00:00 2001 From: James Almer Date: Fri, 27 Apr 2018 19:08:42 -0300 Subject: [PATCH] avcodec/cbs_mpeg2: create a reference to the existing buffer when decomposing slice units Reviewed-by: Mark Thompson Signed-off-by: James Almer --- libavcodec/cbs_mpeg2.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/libavcodec/cbs_mpeg2.c b/libavcodec/cbs_mpeg2.c index 989daf0a4d..8ca47061fe 100644 --- a/libavcodec/cbs_mpeg2.c +++ b/libavcodec/cbs_mpeg2.c @@ -191,16 +191,11 @@ static int cbs_mpeg2_read_unit(CodedBitstreamContext *ctx, len = unit->data_size; slice->data_size = len - pos / 8; - slice->data_ref = av_buffer_alloc(slice->data_size + - AV_INPUT_BUFFER_PADDING_SIZE); + slice->data_ref = av_buffer_ref(unit->data_ref); if (!slice->data_ref) return AVERROR(ENOMEM); - slice->data = slice->data_ref->data; + slice->data = unit->data + pos / 8; - memcpy(slice->data, - unit->data + pos / 8, slice->data_size); - memset(slice->data + slice->data_size, 0, - AV_INPUT_BUFFER_PADDING_SIZE); slice->data_bit_start = pos % 8; } else {