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 185804755F for ; Mon, 11 Dec 2023 19:09:48 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 3B82768D1F6; Mon, 11 Dec 2023 21:09:29 +0200 (EET) Received: from ssq0.pkh.me (laubervilliers-656-1-228-164.w92-154.abo.wanadoo.fr [92.154.28.164]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id E17C368D1E9 for ; Mon, 11 Dec 2023 21:09:22 +0200 (EET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=pkh.me; s=selector1; t=1702321752; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=rGEJuWuLQ7D7ENpvq+bp0m6crgOLBGyOLX83TnzazMM=; b=jBB5mVZs71Iln2z3cErWU9YdH3huKtJ7hpcodyrcRgGxxPi7KFw93mZmAYZm1iXVldsWi8 vjZZfwy6VUXsHgQ2hDyjbgPZOi8bjSRKt8+Dw+XRXliBTF28RnmLnQ9dkw/nDjjUCxhevq hm5wfcXuTS1ohN/+UnPFn+Us9MuMk/8= Received: from localhost (ssq0.pkh.me [local]) by ssq0.pkh.me (OpenSMTPD) with ESMTPA id 43d9a4c0; Mon, 11 Dec 2023 19:09:12 +0000 (UTC) From: =?UTF-8?q?Cl=C3=A9ment=20B=C5=93sch?= To: ffmpeg-devel@ffmpeg.org Date: Mon, 11 Dec 2023 20:06:53 +0100 Message-ID: <20231211190908.1882569-4-u@pkh.me> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231211190908.1882569-1-u@pkh.me> References: <20231211190908.1882569-1-u@pkh.me> MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH 3/5] avcodec/proresenc_kostya: do not write into alpha reserved bitfields 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: =?UTF-8?q?Cl=C3=A9ment=20B=C5=93sch?= 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: This byte represents 4 reserved bits followed by 4 alpha_channel_type bits. alpha_channel_type currently has 3 differents defined values: 0 (no alpha), 1 (8b alpha), and 2 (16b alpha), all the other values are reserved. This part is correctly written (alpha_bits>>3 does the correct thing), but the 4 initial bits are reserved. --- libavcodec/proresenc_kostya.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/proresenc_kostya.c b/libavcodec/proresenc_kostya.c index 7e660a3708..a71452466e 100644 --- a/libavcodec/proresenc_kostya.c +++ b/libavcodec/proresenc_kostya.c @@ -1009,7 +1009,7 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt, bytestream_put_byte (&buf, pic->color_primaries); bytestream_put_byte (&buf, pic->color_trc); bytestream_put_byte (&buf, pic->colorspace); - bytestream_put_byte (&buf, 0x40 | (ctx->alpha_bits >> 3)); + bytestream_put_byte (&buf, ctx->alpha_bits >> 3); bytestream_put_byte (&buf, 0); // reserved if (ctx->quant_sel != QUANT_MAT_DEFAULT) { bytestream_put_byte (&buf, 0x03); // matrix flags - both matrices are present -- 2.43.0 _______________________________________________ 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".