From 541c50e4f4bf935733e1772754424b9d83953983 Mon Sep 17 00:00:00 2001 From: Heesuk Jung Date: Mon, 29 Oct 2012 05:56:20 -0700 Subject: [PATCH] Wrong bit rate in MPEG2 video file (Ticket #1862) mpegvideo parser sometime get wrong stream bit rate which is 0x3FFFF*400. But maximum bit rate of MPEG2 video is up to 80 Mbps in case 1920x1080 resolution. When bit rate is 0x3FFFF*400, set bit rate zero. * Problematic link https://docs.google.com/open?id=0B6r7ZfWFIypCUkhPa0dyTGdFSE0 --- libavcodec/mpegvideo_parser.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/mpegvideo_parser.c b/libavcodec/mpegvideo_parser.c index c60d3cd..ff440fe 100644 --- a/libavcodec/mpegvideo_parser.c +++ b/libavcodec/mpegvideo_parser.c @@ -68,6 +68,9 @@ static void mpegvideo_extract_headers(AVCodecParserContext *s, pc->frame_rate.den = avctx->time_base.den = ff_mpeg12_frame_rate_tab[frame_rate_index].num; pc->frame_rate.num = avctx->time_base.num = ff_mpeg12_frame_rate_tab[frame_rate_index].den; avctx->bit_rate = ((buf[4]<<10) | (buf[5]<<2) | (buf[6]>>6))*400; + if (avctx->bit_rate == 0x3FFFF*400) { + avctx->bit_rate = 0; + } avctx->codec_id = AV_CODEC_ID_MPEG1VIDEO; } break; -- 1.7.9.5