From patchwork Mon Jan 27 22:16:29 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: 17592 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 E6A7D4499E3 for ; Tue, 28 Jan 2020 00:16:48 +0200 (EET) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id C279B68B1B0; Tue, 28 Jan 2020 00:16:48 +0200 (EET) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from mail-wr1-f68.google.com (mail-wr1-f68.google.com [209.85.221.68]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id EC4B768B162 for ; Tue, 28 Jan 2020 00:16:42 +0200 (EET) Received: by mail-wr1-f68.google.com with SMTP id z3so13628720wru.3 for ; Mon, 27 Jan 2020 14:16:42 -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=Hrxd9PEJ+NJ73UzW7XI+g23gfj9CUdEV58IUfaypPoc=; b=BS8+KnuzVT3Ys8dFHICm4TRNKytoon5miz85WY1HlcwcHF4Fl/jNOFxKom70aVQ+bx /MIQR+hCObD7jvuIUxfNsOyHqwrGd4AxSS/34NwE3WstzWoagtvbyljXO21FXWtv3+Yq 1Mifkptsr/kchev6Rrqzi0DInbfma7IgLVylVWOnbb1+vWtkTsKQc2PRiegBlPTnTSqQ FXFp7od/hnXE3MVsQ1WDp992EDuMrqioyhLRr/Q4sjF7sBTLv9fqzubjGHGNSuf/y3Zr 6MhxGJtcPE53VDzywkZ1dNVQw7loeNp0R36s7gDyOWnwBwe4yk4Qtsutv8i/OJcysrA9 OVcA== 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=Hrxd9PEJ+NJ73UzW7XI+g23gfj9CUdEV58IUfaypPoc=; b=oQS5tW1ub3x9/2Ad1tSkIQmAEHeqUuxBz6gq0+4VOiJwMVhXYdysTwqN3CZ4THFgQ1 4HuIImHcpWgS93Mx0SQbJlijsFuGgzI/uP9xbnk89fi60xgvrdwqrKoBQc7u6aWIQecn avwH+6T7By0FRLk/VZZyzmxI82OQ6+/7K58n6LnTfTjvNyRkyGVx1deCUm4wZsYWizn+ hBb5Xs+ENPMSncUHX/ZT+WeXPxV4ovdHfzJEPgjtV+LLaTp8hp8PUcwDi6dLZOdVUi0m gYXiWs/9Ln7lEnRm3f6ORzRvANJXkrqgCi6Qb7JRWsn2je4S2DprgIkMMEsEXnpJe7xI j0Gw== X-Gm-Message-State: APjAAAUsynrNnO6Sq1aUxT3CKO1xhbuh9ktcNBp5O8sud2E0sOWuRnv0 hDOcF7NOKcCzVnZsXH53/iviUonnXis= X-Google-Smtp-Source: APXvYqxkO5Jt7RVYJsfDzBoxEaXbZC5eQhnh+kYVD1WHZS65C2TBHMi66y4vbJZbhbsT2YIkyUmQfA== X-Received: by 2002:adf:f7c4:: with SMTP id a4mr23242635wrq.332.1580163402132; Mon, 27 Jan 2020 14:16:42 -0800 (PST) Received: from localhost.localdomain ([77.237.98.59]) by smtp.gmail.com with ESMTPSA id q19sm288913wmc.12.2020.01.27.14.16.41 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 27 Jan 2020 14:16:41 -0800 (PST) From: Paul B Mahol To: ffmpeg-devel@ffmpeg.org Date: Mon, 27 Jan 2020 23:16:29 +0100 Message-Id: <20200127221629.6948-1-onemda@gmail.com> X-Mailer: git-send-email 2.17.1 Subject: [FFmpeg-devel] [PATCH] avformat/tty: add probe function 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 --- libavformat/tty.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/libavformat/tty.c b/libavformat/tty.c index 8d48f2c45c..75af16a6f1 100644 --- a/libavformat/tty.c +++ b/libavformat/tty.c @@ -24,6 +24,8 @@ * Tele-typewriter demuxer */ +#include + #include "libavutil/intreadwrite.h" #include "libavutil/avstring.h" #include "libavutil/log.h" @@ -42,6 +44,17 @@ typedef struct TtyDemuxContext { AVRational framerate; /**< Set by a private option. */ } TtyDemuxContext; +static int read_probe(const AVProbeData *p) +{ + int64_t cnt = 0; + + for (int i = 0; i < p->buf_size; i++) + cnt += !!isprint(p->buf[i]); + + return (cnt * 100 / p->buf_size) * (cnt > 500) * + !!av_match_ext(p->filename, "ans,art,asc,diz,ice,nfo,txt,vt"); +} + /** * Parse EFI header */ @@ -153,6 +166,7 @@ AVInputFormat ff_tty_demuxer = { .name = "tty", .long_name = NULL_IF_CONFIG_SMALL("Tele-typewriter"), .priv_data_size = sizeof(TtyDemuxContext), + .read_probe = read_probe, .read_header = read_header, .read_packet = read_packet, .extensions = "ans,art,asc,diz,ice,nfo,txt,vt",