From patchwork Wed Aug 21 11:34:49 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Liu Steven X-Patchwork-Id: 14640 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 E96A144818B for ; Wed, 21 Aug 2019 14:35:04 +0300 (EEST) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id D228C68A913; Wed, 21 Aug 2019 14:35:04 +0300 (EEST) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from smtpbg202.qq.com (smtpbg202.qq.com [184.105.206.29]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 09F6E68978D for ; Wed, 21 Aug 2019 14:34:56 +0300 (EEST) X-QQ-mid: bizesmtp18t1566387291t2h2r912 Received: from localhost (unknown [43.247.177.226]) by esmtp6.qq.com (ESMTP) with id ; Wed, 21 Aug 2019 19:34:51 +0800 (CST) X-QQ-SSF: 01100000002000K0ZQF1000A0000000 X-QQ-FEAT: wiFzLE2pXy4YoJisAArBMw77I220w9nE5T16Wu0t1QzJYcOn431O1Q3d34d/p CoVkZuhXXZBVYXfevSpL8TTGbTNBXpmmosCEzAw5IbIn1p3HYgJenxsFnKaybPwLgm9Z3Oc l0gPuWmujijYsEItWbYl5Oedj9qLMwgEHvt0xEK2DzmBmGZy+SvPCyPjJrxeah+D70ImcrB y/HwZ/C5mRILQkK2RRtZY+Td6exNmIZsmx3dXDKXWc8UIhh9/0Gt59/5i61sVi/BfJtgAPn 154acQI/Qx9Lz9I37ApD5ENPEkyeMqrkca2lPgi/SzUGoj/wD9m384ws8jgkUshRBKNljhE 6K4Q42n X-QQ-GoodBg: 0 From: Steven Liu To: ffmpeg-devel@ffmpeg.org Date: Wed, 21 Aug 2019 19:34:49 +0800 Message-Id: <20190821113449.33190-1-lq@chinaffmpeg.org> X-Mailer: git-send-email 2.17.2 (Apple Git-113) X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:chinaffmpeg.org:qybgforeign:qybgforeign4 X-QQ-Bgrelay: 1 Subject: [FFmpeg-devel] [PATCH 2/2] doc/examples/decode_video: add input file format information for usage 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 Cc: Steven Liu MIME-Version: 1.0 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Signed-off-by: Steven Liu --- doc/examples/decode_video.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/doc/examples/decode_video.c b/doc/examples/decode_video.c index 5a9d43f689..169188a4b9 100644 --- a/doc/examples/decode_video.c +++ b/doc/examples/decode_video.c @@ -95,7 +95,8 @@ int main(int argc, char **argv) AVPacket *pkt; if (argc <= 2) { - fprintf(stderr, "Usage: %s \n", argv[0]); + fprintf(stderr, "Usage: %s \n" + "And check your input file is encoded by mpeg1video please.\n", argv[0]); exit(0); } filename = argv[1];