From 1ba32a3c464a37beeb0943a630d5905d84d61b32 Mon Sep 17 00:00:00 2001 From: Carl Eugen Hoyos Date: Tue, 18 Sep 2018 00:16:42 +0200 Subject: [PATCH] lavd/dshow: Interpret negative height as bottom-down frame. Fixes ticket #7436. --- libavdevice/dshow.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libavdevice/dshow.c b/libavdevice/dshow.c index de910c0994..757f7a515d 100644 --- a/libavdevice/dshow.c +++ b/libavdevice/dshow.c @@ -996,11 +996,15 @@ dshow_add_device(AVFormatContext *avctx, par->codec_id = AV_CODEC_ID_RAWVIDEO; if (bih->biCompression == BI_RGB || bih->biCompression == BI_BITFIELDS) { par->bits_per_coded_sample = bih->biBitCount; + if (par->height < 0) { + par->height *= -1; + } else { par->extradata = av_malloc(9 + AV_INPUT_BUFFER_PADDING_SIZE); if (par->extradata) { par->extradata_size = 9; memcpy(par->extradata, "BottomUp", 9); } + } } } } else {