From f55a7ba0376d45599f6ff46ba49ee80d43d0d7d9 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sat, 24 Aug 2013 23:06:59 +0200 Subject: [PATCH] avcodec/ituh263dec: detect and warn about RTP Fixes Ticket925 Signed-off-by: Michael Niedermayer --- libavcodec/ituh263dec.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libavcodec/ituh263dec.c b/libavcodec/ituh263dec.c index cd6ed4e620..08aeb30aeb 100644 --- a/libavcodec/ituh263dec.c +++ b/libavcodec/ituh263dec.c @@ -874,6 +874,10 @@ int ff_h263_decode_picture_header(MpegEncContext *s) align_get_bits(&s->gb); + if (show_bits(&s->gb, 2) == 2 && s->avctx->frame_number == 0) { + av_log(s->avctx, AV_LOG_WARNING, "Header looks like RTP instead of H.263\n"); + } + startcode= get_bits(&s->gb, 22-8); for(i= get_bits_left(&s->gb); i>24; i-=8) {