From patchwork Wed Apr 3 10:55:29 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aman Karmani X-Patchwork-Id: 12604 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 4553E449446 for ; Wed, 3 Apr 2019 13:55:51 +0300 (EEST) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 25C0968AE86; Wed, 3 Apr 2019 13:55:51 +0300 (EEST) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from mail-ot1-f65.google.com (mail-ot1-f65.google.com [209.85.210.65]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 98A3A68AE71 for ; Wed, 3 Apr 2019 13:55:43 +0300 (EEST) Received: by mail-ot1-f65.google.com with SMTP id o74so15049888ota.3 for ; Wed, 03 Apr 2019 03:55:43 -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:mime-version :content-transfer-encoding; bh=efmzne1DA3qfxVlY2HlLNXQVM8JeT6H6tEtWQysgWT4=; b=Kmx6GqFlKSqliSzQY11gd9vnGTtR9YYTQBUHyRBqppFgbIfZqtc45mb4iMco9MsdtO qm0AGfwr8jX/gMm7xZhuh7iSwaUrISsjWaNDw57ULNKmMAPDUZm/z1N0iXxYqqBEhpqc 0K7tgwgLd78e6G0ZyYiiYMDda83TUTgCP2MTr122NxxzG2ZYsDCw90H1EMxsDA01iwNM kkzRqLBth0A7lPVOwf/CjGyxKa8IQDEJ2/oauyKU/OAp2FS9DjID8lc9YjoI1lbyz712 YXeACluJ99xcw1HWrRy2/vLm5qAbhURJnseQykTHkErkfPdVCsXf5XHhE7Z5fOqeRWKd dxtQ== 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 :mime-version:content-transfer-encoding; bh=efmzne1DA3qfxVlY2HlLNXQVM8JeT6H6tEtWQysgWT4=; b=fuErC33V04XI2xT6I55wpr7ZT9AunzCfvAJX4qZQLhap4FSYsye8XLbgaZRISvMPNJ x9a3ajmaoO4nwYrllaV0vuRrwROp7UCV0dPaqPjkjTxCusNde5OzQPzM0Tepx31TE34a f5ORXzbvZ+dNRWqYiw8Zwubz+iJdJv77eFbhE5/x62eoHuQMNCIaha6+4raywleZha2t 9sTaf/or2DvyAuCuf+K9AvEWs2VyX9NdtsVc+ZziAKdxxMu7sRkcYHfPI7rUN17n/PSR RjMfJsEEDr5/dL2lFLr7ntTiQ+Av84iEhEUi7WzmCRke0SBK3F8Ds63mlbcEvwwfXJBz GvbQ== X-Gm-Message-State: APjAAAV6CefMWR1L0bov50sgMFKOq1SCIONgJw4PlmRCG6wnLF1vTPVf OLjilhOQ5zbEJQsV2eLWXz5ByBHb2F6J0NBa X-Google-Smtp-Source: APXvYqx0H87F3WE86FBRHX7pawp9VrruNp0DzzEoqHQGKAcLk2gzSkmvo74jq0FCr595VJ76d8CaTQ== X-Received: by 2002:a9d:186:: with SMTP id e6mr46790528ote.258.1554288941699; Wed, 03 Apr 2019 03:55:41 -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 a198sm6707796oib.19.2019.04.03.03.55.40 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 03 Apr 2019 03:55:40 -0700 (PDT) From: Aman Gupta To: ffmpeg-devel@ffmpeg.org Date: Wed, 3 Apr 2019 03:55:29 -0700 Message-Id: <20190403105529.88874-1-ffmpeg@tmm1.net> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH] avformat/utils: use AVIOContext.read_seek for seeks if available 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 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" From: Aman Gupta Currently only flv and asf decoders attempt to use pb->read_seek, by calling avio_read_seek() expliclity. This change allows avformat users to specify a custom AVIOContext with a read_seek callback, and have it be used with any format whenever av_seek_frame() is invoked. Signed-off-by: Aman Gupta --- libavformat/utils.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavformat/utils.c b/libavformat/utils.c index 9b3f0d28e6..b38727b3ed 100644 --- a/libavformat/utils.c +++ b/libavformat/utils.c @@ -2487,6 +2487,9 @@ static int seek_frame_internal(AVFormatContext *s, int stream_index, if (s->iformat->read_seek) { ff_read_frame_flush(s); ret = s->iformat->read_seek(s, stream_index, timestamp, flags); + } else if (s->pb->read_seek) { + ff_read_frame_flush(s); + ret = s->pb->read_seek(s->pb->opaque, stream_index, timestamp, flags); } else ret = -1; if (ret >= 0)