From patchwork Thu Dec 10 11:16:26 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andreas Rheinhardt X-Patchwork-Id: 24481 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 A349D44AF7C for ; Thu, 10 Dec 2020 13:19:04 +0200 (EET) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 8D97268A403; Thu, 10 Dec 2020 13:19:04 +0200 (EET) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from mail-wm1-f66.google.com (mail-wm1-f66.google.com [209.85.128.66]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id DC86568A255 for ; Thu, 10 Dec 2020 13:18:53 +0200 (EET) Received: by mail-wm1-f66.google.com with SMTP id c198so4312088wmd.0 for ; Thu, 10 Dec 2020 03:18:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references:reply-to :mime-version:content-transfer-encoding; bh=2rZNQyOCA2PrkWKaOFlKvbCj6SW7TR/wTOJ72OaNrUk=; b=VMepO2O4QbSYy+WzoKJxg3tdIY8MinDQD/1NfssKZISieJga3UQ2fwZChaYZm5TEDb AzbAp3GymcvIpEpbRbKVuQsoFITbZo6aoS2g9+IPpCLgm1IgCjsQW3M5YIkXDwTJOBSt TKpUOtpsJmDrWhJMpnNN5GBsG4Q807p/EOA3+7CA4fWtGc1i4DDh17+yv/EJoAQ16BWm iT6cFrLAqtL6trYBtCGhEvABwR9DWfZJclYw7kdcxEnyIubQ8GY36xhAJeMXHDFB3Ok0 wHe0dBrbrQ/mLG/+bMFrSQe5eRumif7yyVXRBzAEDSHOg9WbYtecSrmLZiRVXXXpgJyi Ak4w== 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:in-reply-to :references:reply-to:mime-version:content-transfer-encoding; bh=2rZNQyOCA2PrkWKaOFlKvbCj6SW7TR/wTOJ72OaNrUk=; b=n9kOtMOBHtrSvQZlF3q1cQn1PKznsB/qI1JMN9smcmE+UfWSMe8WvcUMKt1uI3W1Xo r+7gTFAJ9lJBv6z+DKHaTXqFsr6hd3Ho0WDAD8m5Y5xqC3v5RuFtYxLJLqxP/zKkLFky iea3LhZHUllZUVvh58JqrtAjRbQ5tRwvHrNVpybQd+yZ/q5pPrPCVee8XcBswm3SnRb8 Lj9ryIlq6zftQ+hdDlGMoGyJQW6XwEWBIXgfrwLb08JDA+VFLzMTHXln3atm+PfBtsqR Gu5LfbQmhkSweTZTssZbuFFBA5T10fHxwX/Lfy2X5HqfB1+nhXbOh7eq1p0dBff/fJlF 7zhg== X-Gm-Message-State: AOAM533twnGQnTwraKGebkTJmRhiXxr4WLdAy+cn45qzJ+MSH8+WlpYt PlOFsUwT+XTb0q2q7exAW2yzuzUDST8Crg== X-Google-Smtp-Source: ABdhPJz4IQKGA6SstkiYJqdHSWHcXZHASuS5BAaG7SNJemTnkjYvyfMBAd472e6OIH2HLn7kYPDXvA== X-Received: by 2002:a1c:df85:: with SMTP id w127mr7835386wmg.166.1607599133142; Thu, 10 Dec 2020 03:18:53 -0800 (PST) Received: from sblaptop.fritz.box (ipbcc1aa4b.dynamic.kabel-deutschland.de. [188.193.170.75]) by smtp.gmail.com with ESMTPSA id s133sm8942330wmf.38.2020.12.10.03.18.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 10 Dec 2020 03:18:52 -0800 (PST) From: Andreas Rheinhardt To: ffmpeg-devel@ffmpeg.org Date: Thu, 10 Dec 2020 12:16:26 +0100 Message-Id: <20201210111657.2276739-9-andreas.rheinhardt@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201210111657.2276739-1-andreas.rheinhardt@gmail.com> References: <20201210111657.2276739-1-andreas.rheinhardt@gmail.com> MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH 08/39] avcodec/h261dec: Don't initialize unused VLCs 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: Andreas Rheinhardt Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" The H.261 decoder uses only the very first VLC of ff_h261_rl_tcoeff, so only initialize this one. Saves 68448B from the .bss segment; in case the decoder is actually used, this amount of memory is saved. Signed-off-by: Andreas Rheinhardt --- libavcodec/h261dec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/h261dec.c b/libavcodec/h261dec.c index 8a49e7d894..dfa779b574 100644 --- a/libavcodec/h261dec.c +++ b/libavcodec/h261dec.c @@ -65,7 +65,7 @@ static av_cold void h261_decode_init_vlc(H261Context *h) INIT_VLC_STATIC(&h261_cbp_vlc, H261_CBP_VLC_BITS, 63, &ff_h261_cbp_tab[0][1], 2, 1, &ff_h261_cbp_tab[0][0], 2, 1, 512); - INIT_VLC_RL(ff_h261_rl_tcoeff, 552); + INIT_FIRST_VLC_RL(ff_h261_rl_tcoeff, 552); } }