From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ffbox0-bg.ffmpeg.org (ffbox0-bg.ffmpeg.org [79.124.17.100]) by master.gitmailbox.com (Postfix) with ESMTPS id 7C909479AB for ; Mon, 19 May 2025 11:42:36 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.ffmpeg.org (Postfix) with ESMTP id 6256868D432; Mon, 19 May 2025 14:42:31 +0300 (EEST) Received: from mail-pj1-f49.google.com (mail-pj1-f49.google.com [209.85.216.49]) by ffbox0-bg.ffmpeg.org (Postfix) with ESMTPS id B9ED568D245 for ; Mon, 19 May 2025 14:42:24 +0300 (EEST) Received: by mail-pj1-f49.google.com with SMTP id 98e67ed59e1d1-3081fe5987eso3542873a91.3 for ; Mon, 19 May 2025 04:42:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1747654943; x=1748259743; darn=ffmpeg.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=6Ib2Wvt/VJg7uCgR4FV4koKA4XrOm06T+cR0BNzpGSk=; b=k1ra46g71ATt4yUJLV5TBcx3NyspLPDKetSeDTeRCX+J921Xga3bt8w6twLCeV3QaT CsbsXs/LuKhyqPTVi9WOw4NFD+DYi85SYI1bIsGA9c/Y7aqg4eE7sNH+qDRxJFsK68Xe h7vB9vcbGxXcbHMjf/rosgCRG8wWvJ7uh9AHmCtPIkofYYUWPjP6gqStlmK+/6T++xZo pL7A2JzkcfVbDD9F8iU9TeYXbqt1uIWjLdB5tbqlS4SbH3Jl0fI9/o0OKVSD7CIqSo7q KlyROFP/Ecbwwg3Oi7xbbIVghFMngWTzkKI8MW9D/AfqqBSKxQshnSreQR2k8VanmYiU XOHg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1747654943; x=1748259743; 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=6Ib2Wvt/VJg7uCgR4FV4koKA4XrOm06T+cR0BNzpGSk=; b=RvuuU2HEDpVHpRndgLLpPERqr3V8MhWD0f1WEnVgYDm+5BwkZKL4azvHvcj5Fh0LVs oxwOyQr8CnP2++J66jnDaeA7X0qECmUuWr86PXeTNA/7F5o2Fk4ux1VRL4fLU8Y7XXhx lzaYc0JXTY5wwpgXbGy8mqPf8fViJbM8M5pYKoYYbciuKe1DsLRrZLvYdjGSc5nG8+IW mudF8BT9Ky4rUM3c0Bld4SAOTHm76R7zNcfuEs3yyOU9rjpjWIVqyjv6vi2ydnSqYLxS lq9ijnI7uDHGKQzaNfSZklSWTL/J5Sag3nmU3nH6QdmiGBDLcMKyvm4IEwKgbPOxvVhN ek+w== X-Gm-Message-State: AOJu0YxWGOnQd0373wOVglVPSGJcA5TWEeEfkyDYs5an//naOaRv4Cx4 TtGTIg5qCKdHYs/wlc2yBy4190pgDZEHKGGnS0Fl0zTcRTcLFONe0DA7MdVpRw== X-Gm-Gg: ASbGncsXRpnuQdP3dvRgBOkqOx4U3rn45lxy22L3wLRrmFv9WyFC1fMHqLglsnAoVUA 4Jeci0HOZPSUHmjEQOZg/Lf6nbx/ytGlAyXpZ59isAT7+8jM4q5alZBEzwSgLzlnsIWfM6PgnZd sX19y4//xPdSShuBsXyh+IZwKaeEapsK2oGiOH7lnyVuPWvKAlyNSxBImwjw/962cRInUYF2egS DasRq9W0KD70530ogSmwdSBkGBTzcg6sj0TOXB5Lg4hWyw+/ewsN2RCIrcWj9jEwgFbi45e4aMh f8HvGJT7JhZXTqjOszVnJ+43WOIVyp9WbIoLVRxNqkNp7dxBpB8MbVpGN7Q7SPjzfsrDn7Q2V5+ u5w== X-Google-Smtp-Source: AGHT+IHoRIB5YLZaT2ycAzhLhE6ahOsK9ztYirLApxcigXSfSWYGm2mQD24AiADC1MHOdEij/hL3Bw== X-Received: by 2002:a17:90b:4b82:b0:2ff:7b28:a51a with SMTP id 98e67ed59e1d1-30e8314db35mr21940777a91.17.1747654942504; Mon, 19 May 2025 04:42:22 -0700 (PDT) Received: from chenyu29.mioffice.cn ([43.224.245.247]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-b26eb0a9ac9sm6008504a12.78.2025.05.19.04.42.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 19 May 2025 04:42:22 -0700 (PDT) From: chenyu202107@gmail.com To: ffmpeg-devel@ffmpeg.org Date: Mon, 19 May 2025 19:41:34 +0800 Message-Id: <20250519114134.338832-1-chenyu202107@gmail.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH 1/1] [ffmpeg-deve] avcodec/mpegaudiodec optimizing code size 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: chenyu 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: chenyu Optimizing 160k code size by converting static array to dynamic malloc memory. Signed-off-by: chenyu --- libavcodec/mpegaudiodata.h | 4 ++-- libavcodec/mpegaudiodec_common_tablegen.h | 10 ++++++++-- 2 files changed, 10 insertions(+), 4 deletions(-) diff --git a/libavcodec/mpegaudiodata.h b/libavcodec/mpegaudiodata.h index 720c4bee64..6dfb74cd01 100644 --- a/libavcodec/mpegaudiodata.h +++ b/libavcodec/mpegaudiodata.h @@ -50,8 +50,8 @@ extern const unsigned char * const ff_mpa_alloc_tables[5]; extern const int8_t ff_table_4_3_exp [TABLE_4_3_SIZE]; extern const uint32_t ff_table_4_3_value[TABLE_4_3_SIZE]; #else -extern int8_t ff_table_4_3_exp [TABLE_4_3_SIZE]; -extern uint32_t ff_table_4_3_value[TABLE_4_3_SIZE]; +extern int8_t *ff_table_4_3_exp; +extern uint32_t *ff_table_4_3_value; #endif /* VLCs for decoding layer 3 huffman tables */ diff --git a/libavcodec/mpegaudiodec_common_tablegen.h b/libavcodec/mpegaudiodec_common_tablegen.h index bf402c9d84..66e93df27f 100644 --- a/libavcodec/mpegaudiodec_common_tablegen.h +++ b/libavcodec/mpegaudiodec_common_tablegen.h @@ -34,9 +34,10 @@ #else #include #include "libavutil/attributes.h" +#include "libavutil/mem.h" -int8_t ff_table_4_3_exp [TABLE_4_3_SIZE]; -uint32_t ff_table_4_3_value[TABLE_4_3_SIZE]; +int8_t *ff_table_4_3_exp; +uint32_t *ff_table_4_3_value; #define FRAC_BITS 23 #define IMDCT_SCALAR 1.759 @@ -51,6 +52,11 @@ static av_cold void mpegaudiodec_common_tableinit(void) }; double pow43_val = 0; +#if !CONFIG_HARDCODED_TABLES + ff_table_4_3_exp = (int8_t *)av_calloc(TABLE_4_3_SIZE, sizeof(int8_t)); + ff_table_4_3_value = (uint32_t *)av_calloc(TABLE_4_3_SIZE, sizeof(uint32_t)); +#endif + for (int i = 1; i < TABLE_4_3_SIZE; i++) { double f, fm; int e, m; -- 2.34.1 _______________________________________________ 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".