From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by master.gitmailbox.com (Postfix) with ESMTP id 589E74461F for ; Thu, 20 Oct 2022 16:06:54 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id E1BAF68BDD9; Thu, 20 Oct 2022 19:06:51 +0300 (EEST) Received: from mail-pg1-f174.google.com (mail-pg1-f174.google.com [209.85.215.174]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 08D2768BD79 for ; Thu, 20 Oct 2022 19:06:45 +0300 (EEST) Received: by mail-pg1-f174.google.com with SMTP id 78so19618021pgb.13 for ; Thu, 20 Oct 2022 09:06:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=gP1NSKo5pwyb9RJN1YsYY6/2SmMItU+jZ6I/QD7X25Q=; b=VrD5C4xoStVwb0YgBjZe2wHa8FEjTiqltvRPz4HzRJf7MlJ8FOvQGTDNDxjNGNRW37 J9HKbNpsBVNnHyObUIfv+R0kc7NXJcypqVSIxtTp2j1o66hFLWf00v5znqxmod60Df9n mW5WVoRpTMGPb/ZpDUCu5iOFAfwzXG5YUDle5wJTQLaoKfGfo3mvy0EDdzIyLJFhKIwn X2WRK70pB/OT9KGRZVRgXPMbnHABgXY4CoiQCLxNhU5lk8QoxJ1r35EMH/tAJO1HL6d0 jtuzvTusAmXfgtOoZf1x6X3IvzK+g/Js3mxvOsFxUyKD5HN/9B1Hj6EQ1AKnEqsW7yKh rUTg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=gP1NSKo5pwyb9RJN1YsYY6/2SmMItU+jZ6I/QD7X25Q=; b=HN3d/60w0Fv62uLI8gHNoffRWGa2Wmq50BHqH9P+1B+BtqtbA9AB/rhgbrXmoKLC5p CxBsqwKGKL9sYRrvdv1Ggz5jjwORhu4ndYcxwoxXGsdPsefzztah08vBZEiMiGY2eOFF 9/vMiTxQIrLumW6b8UsAEbNM1eN5mvzXP5zsyaBPDg9h828oHiNY00e6t94BB8PfE43f g5OiF/aCJy5MgkYmz7n09yva8icrDkOoZ052h3ngNWv4/PEWu+0tWKzUjfGK3+OQWZl0 E56rwkeiD3V85A0JMrICN2Aj3iSfAlVNSKuOjFLTC1vgTouB2ZTtvtPBX+EX2lDOAIOE 6jvw== X-Gm-Message-State: ACrzQf1PM3YCpRLu5cojAX7nqNHkz7hn8uxn6gfPvQF2g0eWBIAlRlaF TlBdj6bU8miPypnIG08c+AmXQ5kdwps= X-Google-Smtp-Source: AMsMyM5d4/rpytxbPuTwMnP8BZ2V8+VwQno8AegG8+MZilOvj5277j7Bf4mqdqiaVd4tujAMGRkVtQ== X-Received: by 2002:a63:e52:0:b0:438:ebec:363e with SMTP id 18-20020a630e52000000b00438ebec363emr12526520pgo.437.1666282002023; Thu, 20 Oct 2022 09:06:42 -0700 (PDT) Received: from wilferico.thefacebook.com ([2620:10d:c090:400::5:b6a7]) by smtp.gmail.com with ESMTPSA id b7-20020a170903228700b0017a0668befasm13252092plh.124.2022.10.20.09.06.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 20 Oct 2022 09:06:41 -0700 (PDT) From: Chema Gonzalez To: ffmpeg-devel@ffmpeg.org, ffmpeg@gyani.pro Date: Thu, 20 Oct 2022 09:06:37 -0700 Message-Id: <20221020160637.1835527-1-chemag@gmail.com> X-Mailer: git-send-email 2.37.3 MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH] avformat/yuv4mpegdec: increase header limit X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 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: Chema Gonzalez Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: From: Chema Gonzalez Allows demuxing UHD F1000000000:33333333 fps yuvj420p files ffmpeg (at HEAD as of now) is creating this: ``` $ ffmpeg -y -i source.265 /tmp/foo.y4m >& /dev/null ... $ xxd /tmp/raw.y4m |less 00000000: 5955 5634 4d50 4547 3220 5731 3932 3020 YUV4MPEG2 W1920 00000010: 4831 3038 3020 4631 3030 3030 3030 3030 H1080 F100000000 00000020: 303a 3333 3333 3333 3333 2049 7020 4130 0:33333333 Ip A0 00000030: 3a30 2043 3432 306d 7065 6732 2058 5953 :0 C420mpeg2 XYS 00000040: 4353 533d 3432 304d 5045 4732 2058 434f CSS=420MPEG2 XCO 00000050: 4c4f 5252 414e 4745 3d4c 494d 4954 4544 LORRANGE=LIMITED 00000060: 0a46 5241 4d45 0a82 8282 8282 8282 8282 .FRAME.......... ... ``` Which cannot be parsed by the same ffmpeg decoder: ``` $ ffmpeg -i /tmp/foo.y4m /tmp/bar.y4m ... [yuv4mpegpipe @ 0x2b69a40] Header too large. /tmp/foo.y4m: Invalid argument ``` This is kicking the ball (per 0b1ff3265e9bdad3b4b6b97ced2f126cb3599568), but seems to work. --- libavformat/yuv4mpegdec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/yuv4mpegdec.c b/libavformat/yuv4mpegdec.c index b24275acc1..c0972af7de 100644 --- a/libavformat/yuv4mpegdec.c +++ b/libavformat/yuv4mpegdec.c @@ -27,7 +27,7 @@ #include "yuv4mpeg.h" /* Header size increased to allow room for optional flags */ -#define MAX_YUV4_HEADER 96 +#define MAX_YUV4_HEADER 128 #define MAX_FRAME_HEADER 80 static int yuv4_read_header(AVFormatContext *s) -- 2.37.3 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".