Files
MeowOS-For-R3P2/patch_v2/ncm_app/build_ncm.sh
T
AskaEth 184ebd0ac9 feat(ncm): 缓存文件内嵌元数据模块 ncm_tag(FLAC VORBIS_COMMENT / MP3 ID3v2.3 写读 + 音频头探测)
core/ncm_tag.c/.h(纯 libc,宿主可单测,不依赖 mbedtls/jsmn):
- FLAC:在元数据末块之后插入 VORBIS_COMMENT(TITLE/ARTIST/ALBUM),旧 VORBIS_COMMENT
  替换、PADDING/PICTURE 原样保留;MP3:ID3v2.3 TIT2/TPE1/TALB(UTF-16LE+BOM,中英文
  与 emoji 均可),源已带 ID3v2 时先剥旧标签(不留双标签)。
- **按实际容器分支**(读 fLaC 魔数):缓存名档位段是请求档,真机存在
  song_<id>_hires.mp3(无损请求被降级链落到 exhigh mp3),不能按名字判容器。
- 写入 = 同目录 <path>.tag.tmp + 64KB 分块搬运 + fsync + rename 原子替换;任一步失败
  即 unlink 临时件、原文件保持不变(调用方 commit 裸流降级),峰值内存 64KB。
- ncm_audio_probe_file:只读文件头探测实际容器/位深/码率(FLAC STREAMINFO / MP3 首帧),
  「已缓存列表」据此显示实际档位而非请求档。
- test/test_ncm_tag.c + build_ncm_tag_host.sh:FLAC/MP3 构建+读回、中文 roundtrip、
  旧标签替换、容器判定、3MB 分块、失败降级、探测 —— 51 断言全过,0 warning。
2026-11-04 20:49:25 +08:00

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#!/bin/bash
# build_ncm.sh — 构建 dev.player.ncm(网易云 App,SDK framework=1):链 meow_ui.a + 核心库 + minimp3 + dr_flac + mbedtls。
# 静态 MIPS32r2 (musl sf)。自有代码(app/ + core/)+ core 支撑 vendor 编译;vendor/minimp3/dr_flac/qrcodegen/jsmn 豁免告警。
# 仅改本 App 目录;编译期不改 SDK(patch_v2/sdk/)、不动 meow_launcherd/。mipsel -Wall -Wextra 0 warning。
set -e
cd "$(dirname "$0")"
ROOT="$HOME/Project/R3ProII"
CC="$ROOT/.tools/zig-mipsel-cc"
SYSROOT="$ROOT/.tools/mipsel-linux-muslsf-cross/mipsel-linux-muslsf"
OUT="$PWD/out"
mkdir -p "$OUT/app-mipsel"
INC="-Icore -I../sdk -I../meow_launcherd \
-Ivendor/mbedtls/include -Ivendor/jsmn -Ivendor/qrcodegen/c -Ivendor/minimp3 -Ivendor/dr_flac"
STRICT="-Wall -Wextra -Os -DJSMN_HEADER"
CORE="core/ncm_common.c core/ncm_json.c core/ncm_store.c core/ncm_http.c \
core/ncm_crypto.c core/ncm_req.c core/ncm_login.c core/ncm_api.c \
core/ncm_cache.c core/ncm_ctx.c core/ncm_apicache.c core/ncm_tag.c"
APP="app/app.c app/ui/login.c app/ui/home.c app/ui/playlist.c app/ui/player.c \
app/ui/settings.c app/ui/search.c app/ui/minibar.c app/ui/queue.c \
app/ui/ncm_colors.c app/ui/chrome.c \
app/logic/appstate.c app/logic/lyric.c app/logic/songmeta.c \
app/logic/cover.c app/logic/account.c app/play/player_manager.c app/play/audio_out.c \
app/play/ipc_media.c app/play/decoder.c app/play/stream_src.c app/play/minimp3_impl.c \
app/play/mem_watch.c"
echo "==> app+core (strict)"
for f in $APP $CORE; do
b=$(basename "$f" .c)
$CC -static -c $STRICT $INC "$f" -o "$OUT/app-mipsel/$b.o"
done
echo "==> vendor impl (warn-exempt)"
$CC -static -c -Os -I../meow_launcherd -Ivendor/minimp3 app/play/minimp3_impl.c -o "$OUT/app-mipsel/minimp3_impl.o"
$CC -static -c -Os -Ivendor/dr_flac app/play/dr_flac_impl.c -o "$OUT/app-mipsel/dr_flac_impl.o"
$CC -static -c -Os -Ivendor/jsmn core/jsmn_impl.c -o "$OUT/app-mipsel/jsmn_impl.o"
$CC -static -c -Os -Ivendor/qrcodegen/c vendor/qrcodegen/c/qrcodegen.c -o "$OUT/app-mipsel/qrcodegen.o"
echo "==> link"
MIPS_LIBS="$OUT/mbedtls/mipsel/libmbedtls.a $OUT/mbedtls/mipsel/libmbedx509.a $OUT/mbedtls/mipsel/libmbedcrypto.a"
$CC -Os -static -Wl,--gc-sections -o ncm \
$OUT/app-mipsel/*.o \
../sdk/meow_ui.a "$SYSROOT/lib/libz.a" \
$MIPS_LIBS -lpthread -lm
ls -la ncm
file ncm
echo
echo "== size =="
size ncm
echo "(own code -Wall -Wextra: 0 warning enforced above; vendor exempt)"