From patchwork Thu Oct 10 03:48:40 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lance Wang X-Patchwork-Id: 15664 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 49A9244A642 for ; Thu, 10 Oct 2019 06:48:54 +0300 (EEST) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 25CF36880E8; Thu, 10 Oct 2019 06:48:54 +0300 (EEST) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from mail-pf1-f194.google.com (mail-pf1-f194.google.com [209.85.210.194]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id EEEB3680A7C for ; Thu, 10 Oct 2019 06:48:47 +0300 (EEST) Received: by mail-pf1-f194.google.com with SMTP id y22so2992141pfr.3 for ; Wed, 09 Oct 2019 20:48:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=q0zHw8OHrDsp8C8ucRvItm3FUHpu6Uj1OnXPU+f4ltc=; b=BxDLuU0AsvBXuublpACq67ZZwrlHWw2fCIeoRx5CLQsI660HnQ9mOzl7VFwvyVE21B HsijJueKA/3YpCaIRt2Ll+apBJWRiikFxxzLEwYdWjdpz9kUwNJ8Sq3hoy/2EOMBvqDu 0k5p5eS3x5cx9RP2Ff1QhsYkGOKXc3W61vKAJZ1iEPTXiR0ZY7ZMrejcr6OFpBv4djRo q2nN3PJEWUU1sUStwSkLI77h79NsPXVWpEypuAyO11iTfquXLPC9q+YCLkLjoLilSUc6 TG9iCbbgrQu8SiPPG0GBxfAvvV7MTgTjRKJuuqxkuAcIpgXfJuPi3wBq7bBTuQVsaWBm VRnA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=q0zHw8OHrDsp8C8ucRvItm3FUHpu6Uj1OnXPU+f4ltc=; b=NipcxfkkKgzFBrKkN/FHmOOlMCEl9XcaylEdOAhGU4QBbKMR0eOt+G0nvuH0O0iY3D 3AKZMsXH6ZN4VrdRXtgaZdfNVb0OgFNlAWYd334i6+/GIaeyzfCYT3AxV98M1gnQM/qJ PwJ+wzTJ+KC0LjSB67Q2VvwGgKnHySaf1kM1RwgsBwnkbEGP09hQIhIlZ3AmKBF5ZXFO SmVg0H/qDFPjxHs/QVa689Oyz4QaX3Vys7UmlX3Eilu6oMp5Xg8u6yB278aqjlksqgEg p9p40fYLZcgdWtDgPyVkU9GkcJXwRYwfB/WDSii3+YV/1XOLnjiAeQzEm4cMCAV6toV6 440w== X-Gm-Message-State: APjAAAUD4KtLcp4nwcpqAlPPZLiD5/niknck0nz0dasfWSpZxpjX6+em RV71cjcfmPhC/1/U1N/q8Wo77KZW X-Google-Smtp-Source: APXvYqzyiIyQbtzueXU8XGy0pemQ0u6LM6fu+qHOBReIB5G9RjZVG9UaF/J71DNkorcjjRaNGV2mnQ== X-Received: by 2002:a65:6205:: with SMTP id d5mr8614611pgv.424.1570679325793; Wed, 09 Oct 2019 20:48:45 -0700 (PDT) Received: from vpn.localdomain ([47.90.99.151]) by smtp.gmail.com with ESMTPSA id b20sm3857310pff.158.2019.10.09.20.48.44 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 09 Oct 2019 20:48:45 -0700 (PDT) From: lance.lmwang@gmail.com To: ffmpeg-devel@ffmpeg.org Date: Thu, 10 Oct 2019 11:48:40 +0800 Message-Id: <20191010034840.1736-1-lance.lmwang@gmail.com> X-Mailer: git-send-email 2.9.5 Subject: [FFmpeg-devel] [PATCH v1] avfilter/vf_freezedetect: add metadata lavfi.freezedetect.mafd 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: Limin Wang MIME-Version: 1.0 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" From: Limin Wang As suggested by Paul to support frozen frames discard, please refer to: https://patchwork.ffmpeg.org/patch/15423/ You can tested with below commands: ./ffmpeg -f lavfi -i "smptebars=duration=5:size=1280x720:rate=30,freezedetect,metadata=mode=select:key=lavfi.freezedetect.mafd:value=0.01:function=greater" -f null - frame= 1 fps=0.0 q=-0.0 Lsize=N/A time=00:00:00.03 bitrate=N/A speed=2.14x Signed-off-by: Limin Wang --- doc/filters.texi | 9 +++++++++ libavfilter/vf_freezedetect.c | 7 +++++++ 2 files changed, 16 insertions(+) diff --git a/doc/filters.texi b/doc/filters.texi index 55a8ebae56..cfc10c8479 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -10800,6 +10800,15 @@ timestamp of the first frame of the freeze. The @code{lavfi.freezedetect.freeze_end} metadata keys are set on the first frame after the freeze. +The @code{lavfi.freezedetect.mafd} metadata key is set for all frames except the +first reference frame. You can use it to drop frozen frames by metadata select +mode. Note that in this way the first few frozen frames(the detection interval) +are dropped also. An example is as follows: +@example +freezedetect,metadata=mode=select:key=lavfi.freezedetect.mafd:value=0.001:function=greater +@end example + + The filter accepts the following options: @table @option diff --git a/libavfilter/vf_freezedetect.c b/libavfilter/vf_freezedetect.c index cc086afee6..3931bcfa2e 100644 --- a/libavfilter/vf_freezedetect.c +++ b/libavfilter/vf_freezedetect.c @@ -124,11 +124,14 @@ static av_cold void uninit(AVFilterContext *ctx) av_frame_free(&s->reference_frame); } +static int set_meta(FreezeDetectContext *s, AVFrame *frame, const char *key, const char *value); static int is_frozen(FreezeDetectContext *s, AVFrame *reference, AVFrame *frame) { uint64_t sad = 0; uint64_t count = 0; double mafd; + char buf[64]; + for (int plane = 0; plane < 4; plane++) { if (s->width[plane]) { uint64_t plane_sad; @@ -141,6 +144,10 @@ static int is_frozen(FreezeDetectContext *s, AVFrame *reference, AVFrame *frame) } emms_c(); mafd = (double)sad / count / (1ULL << s->bitdepth); + + snprintf(buf, sizeof(buf), "%0.5f", mafd); + set_meta(s, frame, "lavfi.freezedetect.mafd", buf); + return (mafd <= s->noise); }