From patchwork Thu Aug 22 21:47:38 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aman Karmani X-Patchwork-Id: 14665 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 BEA264481EB for ; Fri, 23 Aug 2019 00:48:59 +0300 (EEST) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id A41F368ACC9; Fri, 23 Aug 2019 00:48:59 +0300 (EEST) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from mail-ot1-f68.google.com (mail-ot1-f68.google.com [209.85.210.68]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 1889F68AC1E for ; Fri, 23 Aug 2019 00:48:50 +0300 (EEST) Received: by mail-ot1-f68.google.com with SMTP id b1so6911045otp.6 for ; Thu, 22 Aug 2019 14:48:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tmm1-net.20150623.gappssmtp.com; s=20150623; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=j1Fu7/pX1tPE49BLcxRF2TR1XNrCe4nMiYekDZO1LO8=; b=06JWc7Ruky0efhzec0it2C5iMY2DEuiAmmVjuImqjr8Mc6LnH9j+9Db/IWTHPA7urt GVCRHQMO8SSH2pbCi27TjekZ8jP02gmqlcWEIH4nZjjcsJv4Fa8XwZDK+KvawrY4Z9gq QhsydYMOykbMXkZLBanrlEAyq7DTO2DiTLdlCqF6OxBA3CSe7XOh53tsjyZY2n/75C56 uESxS8NgjRPzata9IkE1Kfm6Uu07rQET+KY0RZRT0wCAUER9PYa/Jk6nq+Bulj4eb4Iy JBIKtCWT6aivTNBPJXBR4jzls3LB9XIJWf1JEOwANSOXmWbViIVGLTISYR6CAVLwoGJf jHkA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-transfer-encoding; bh=j1Fu7/pX1tPE49BLcxRF2TR1XNrCe4nMiYekDZO1LO8=; b=Houm9h8Ca9ebl3OS33LRUl2QWYcb3Ju20A5xhxFG30P65MNSUvoLh+VYvTYUkY2syt CZgK5yoHD9SrulrslF1+L57T24gO1dqnqcUvBzOifKxf+mQCltdzWIV4zg8Z/sOQO2OP kmWyjBUFK4ClWzsnq++1+q9LhsrrRwCCqygIZ8Z1pZCqlS5pN1jI50/FAxPITsMOG0Pa O8t4qIw9UGTKT71DZlNrVgDrXsF2+U6O6+TqmEFSnuQprCdVra4wBdGPurrGU5GlHiMt CnKorcKbhpIwCMxdXB3NOXwxVjDbGsuSWOyEgKKCblCZhvSp/BB682kqTYmWR60L4ilJ j1IA== X-Gm-Message-State: APjAAAW++rmhb4PYpLse0FjDW3gPuEnfMMyxjf2xduSPW9EMfQ2hmBgV OpzFJWYDYmG9TrTrEqSag77M1+2wWlk= X-Google-Smtp-Source: APXvYqyi7uMoH79/RK6ZQlS7bf8HF79CDGjSlRbHpWV8PXCBbnd3keSNfZTfj0DiY3bqaSI5LdhHHw== X-Received: by 2002:a9d:5f02:: with SMTP id f2mr1485338oti.148.1566510528516; Thu, 22 Aug 2019 14:48:48 -0700 (PDT) Received: from tmm1-imac.lan (ip184-189-221-177.sb.sd.cox.net. [184.189.221.177]) by smtp.gmail.com with ESMTPSA id r2sm314253otk.49.2019.08.22.14.48.47 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 22 Aug 2019 14:48:47 -0700 (PDT) From: Aman Gupta To: ffmpeg-devel@ffmpeg.org Date: Thu, 22 Aug 2019 14:47:38 -0700 Message-Id: <20190822214741.12456-5-ffmpeg@tmm1.net> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190822214741.12456-1-ffmpeg@tmm1.net> References: <20190822214741.12456-1-ffmpeg@tmm1.net> MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH 5/8] avcodec/v4l2_context: log VIDIOC_REQBUFS failures 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: Aman Gupta , jro@xenomai.org Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" From: Aman Gupta Signed-off-by: Aman Gupta --- libavcodec/v4l2_context.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/libavcodec/v4l2_context.c b/libavcodec/v4l2_context.c index efcb0426e4..4958c634bf 100644 --- a/libavcodec/v4l2_context.c +++ b/libavcodec/v4l2_context.c @@ -678,8 +678,10 @@ int ff_v4l2_context_init(V4L2Context* ctx) req.memory = V4L2_MEMORY_MMAP; req.type = ctx->type; ret = ioctl(s->fd, VIDIOC_REQBUFS, &req); - if (ret < 0) + if (ret < 0) { + av_log(logger(ctx), AV_LOG_ERROR, "%s VIDIOC_REQBUFS failed: %s\n", ctx->name, strerror(errno)); return AVERROR(errno); + } ctx->num_buffers = req.count; ctx->buffers = av_mallocz(ctx->num_buffers * sizeof(V4L2Buffer));