From 31f2616db86fb50174bc053f26c14db7c03e3685 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sat, 21 Feb 2009 15:32:56 +0000 Subject: Fix raw rgb/bgr vertical flip in avi based on info from http://www.fourcc.org/fccbihgt.php. partially fixes issue862. Originally committed as revision 17475 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavformat/avidec.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'libavformat/avidec.c') diff --git a/libavformat/avidec.c b/libavformat/avidec.c index e3cc14c958..2216b35582 100644 --- a/libavformat/avidec.c +++ b/libavformat/avidec.c @@ -451,7 +451,7 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap) } get_le32(pb); /* size */ st->codec->width = get_le32(pb); - st->codec->height = get_le32(pb); + st->codec->height = (int32_t)get_le32(pb); get_le16(pb); /* panes */ st->codec->bits_per_coded_sample= get_le16(pb); /* depth */ tag1 = get_le32(pb); @@ -499,6 +499,15 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap) st->codec->codec_tag = tag1; st->codec->codec_id = codec_get_id(codec_bmp_tags, tag1); st->need_parsing = AVSTREAM_PARSE_HEADERS; // This is needed to get the pict type which is necessary for generating correct pts. + + if(st->codec->codec_tag==0 && st->codec->height > 0 && st->codec->extradata_size < 1U<<30){ + st->codec->extradata_size+= 9; + st->codec->extradata= av_realloc(st->codec->extradata, st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE); + if(st->codec->extradata) + memcpy(st->codec->extradata + st->codec->extradata_size - 9, "BottomUp", 9); + } + st->codec->height= FFABS(st->codec->height); + // url_fskip(pb, size - 5 * 4); break; case CODEC_TYPE_AUDIO: -- cgit v1.2.3