From b0e7a932e6ea9bb83e7e15c4cd4c1bda110d16e2 Mon Sep 17 00:00:00 2001 From: Baptiste Coudurier Date: Thu, 5 May 2011 14:40:26 +0200 Subject: [PATCH] SVQ3: Check that things match up after a frame. Signed-off-by: Michael Niedermayer --- libavcodec/svq3.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/libavcodec/svq3.c b/libavcodec/svq3.c index 393c7b40ec..9dff9e9114 100644 --- a/libavcodec/svq3.c +++ b/libavcodec/svq3.c @@ -932,7 +932,7 @@ static int svq3_decode_frame(AVCodecContext *avctx, H264Context *h = &svq3->h; MpegEncContext *s = &h->s; int buf_size = avpkt->size; - int m, mb_type; + int m, mb_type, left; /* special case for last picture */ if (buf_size == 0) { @@ -1054,6 +1054,18 @@ static int svq3_decode_frame(AVCodecContext *avctx, ff_draw_horiz_band(s, 16*s->mb_y, 16); } + left = buf_size*8 - get_bits_count(&s->gb); + + if (s->mb_y != s->mb_height || s->mb_x != s->mb_width) { + av_log(avctx, AV_LOG_INFO, "frame num %d incomplete pic x %d y %d left %d\n", avctx->frame_number, s->mb_y, s->mb_x, left); + //av_hex_dump(stderr, buf+buf_size-8, 8); + } + + if (left < 0) { + av_log(avctx, AV_LOG_ERROR, "frame num %d left %d\n", avctx->frame_number, left); + return -1; + } + MPV_frame_end(s); if (s->pict_type == AV_PICTURE_TYPE_B || s->low_delay) {