From patchwork Fri Feb 21 21:32:10 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul B Mahol X-Patchwork-Id: 17862 Return-Path: X-Original-To: patchwork@ffaux-bg.ffmpeg.org Delivered-To: patchwork@ffaux-bg.ffmpeg.org Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by ffaux.localdomain (Postfix) with ESMTP id 8E61744B279 for ; Fri, 21 Feb 2020 23:40:50 +0200 (EET) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 6EC5C68B327; Fri, 21 Feb 2020 23:40:50 +0200 (EET) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from mail-wm1-f67.google.com (mail-wm1-f67.google.com [209.85.128.67]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 90FD668B1E7 for ; Fri, 21 Feb 2020 23:40:44 +0200 (EET) Received: by mail-wm1-f67.google.com with SMTP id p9so3248090wmc.2 for ; Fri, 21 Feb 2020 13:40:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id; bh=uBS5/16/xcd7btRVffJ68vc6jfF6r6n990ruUnEqgRk=; b=kwjzQS3623sBtytHjWOBXplUQUDubIcYypvNZyo84Hpbrf++dVVEAErdQ4pUnIlVW5 iJrKtvheEUhMLTprLULpYjYp9sAwEhxYxkh6W6aA6YUDGmZaoZMWHESQE2sg/bQyani6 e/0yj4Fy5+dHpglSZQT51o9Kqycf4Ty8Lca5QrNwSpxHXMNBmgfVQvC4OVFHU7SJdSwP HIh3RJkLP3/TcYUVa8NU1q+n0d+s0K0QZxTkC7WN1CcykbMXHmcI+ZmN0NX/zWjSd9k4 NCQngLrjo9R1+z19/OoIuszyBLEUvU1/VIEI49GiiqPTFi8v8h8SdjX0CYzuTK17YEA1 aWiQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id; bh=uBS5/16/xcd7btRVffJ68vc6jfF6r6n990ruUnEqgRk=; b=BOhmpHZTyXhwHheRoIjThkkOiesjAkhNiPy5Auew5Di/ctbV9DYuLCqfF/uYlVUWMB sSFtNEJWnkD6/xxlrdOAaUt9d/EoGh/Ysg1URe09hwx8ZKBvcEoZpnZsFdWwKyQUP+t0 Ds720mZQ+SzhQl6XATAh0l4Yooc5gFDF5/EnxySy4KA7niO3GnCo2/pf3TUF7Pig36ii xDDjc0HiXAdX2kDj06ZRhCUpdA2G/5O7XFzma4cbXvNUTXeMx5XKwT7YUuxvcaFtgVzp bMMS95/NIT6l3Y25wXeZOYZfyqniiIJsnTPBvnIKGht5NHGKbP9f8491KKjO+CwsmeQg Mk2Q== X-Gm-Message-State: APjAAAX4GyutghRKEnJr5P4NfkgCyIotfRNB3Ir3ilLG4/2CJkBQtOkU tjmg4UfMWIkkjnvQ+7KPVcDUf32U X-Google-Smtp-Source: APXvYqxAM/ZjU5XTF6+JYK6wy1U1SvYef20tERABxtZQfy9h+X/eU56qxTgUnOW2naeEG50yCic4qg== X-Received: by 2002:a1c:1dc7:: with SMTP id d190mr5910775wmd.48.1582320740387; Fri, 21 Feb 2020 13:32:20 -0800 (PST) Received: from localhost.localdomain ([109.227.58.206]) by smtp.gmail.com with ESMTPSA id a16sm5675245wrx.87.2020.02.21.13.32.19 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 21 Feb 2020 13:32:19 -0800 (PST) From: Paul B Mahol To: ffmpeg-devel@ffmpeg.org Date: Fri, 21 Feb 2020 22:32:10 +0100 Message-Id: <20200221213210.23251-1-onemda@gmail.com> X-Mailer: git-send-email 2.17.1 Subject: [FFmpeg-devel] [PATCH] avcodec/ac3_parser: recognize LE bitstream variant X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches MIME-Version: 1.0 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Signed-off-by: Paul B Mahol --- libavcodec/ac3_parser.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/libavcodec/ac3_parser.c b/libavcodec/ac3_parser.c index 1e203ae6ac..ba171653ef 100644 --- a/libavcodec/ac3_parser.c +++ b/libavcodec/ac3_parser.c @@ -201,6 +201,12 @@ static int ac3_sync(uint64_t state, AACAC3ParseContext *hdr_info, AC3HeaderInfo hdr; GetBitContext gbc; + if (tmp.u8[1] == 0x77 && tmp.u8[2] == 0x0b) { + FFSWAP(uint8_t, tmp.u8[1], tmp.u8[2]); + FFSWAP(uint8_t, tmp.u8[3], tmp.u8[4]); + FFSWAP(uint8_t, tmp.u8[5], tmp.u8[6]); + } + init_get_bits(&gbc, tmp.u8+8-AC3_HEADER_SIZE, 54); err = ff_ac3_parse_header(&gbc, &hdr);