ncm: FLAC 解码落地(dr_flac 0.13.4 单头入库) + 缓存键=歌曲ID+音质档位
- 解码分发 decoder.c:magic(fLaC→dr_flac / 其它→minimp3);flac ≤16bit→S16、 >16bit→S32 满幅送 audiod(AUDIO_FMT_S32),rate/ch/bits 按实际流,零 SRC 零裁剪 - song_url_auto 接受 flac(type 权威/url 扩展名兜底),降级语义不变;flac 下载限幅 1GB - 缓存键 song_<id>_<level>.<ext>:同歌同档命中不重下,换档新条目旧档留 LRU; ext 前导点正名(修双点名),lookup 回退历史双点名+旧无档键温和兼容 - audio_out S32 通路(AUDIOD/ALSA/WAV)+ 流死重开按 bits 还原格式 - 验证(0 真实请求):44.1k/16 与 96k/24 自制样本宿主+qemu 帧数/时长精确、 逐样本零误差;mp3 回归逐帧一致;player_flow_sim P1-P6(新 P6 档位键/flac ext)、 cache_evict/cover/pagination/window/audiod_chain sim 全 PASS;mipsel 0 warning - REPORT §19 / VENDOR_NOTES dr_flac 条目;未部署真机(留主会话)
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@@ -142,6 +142,21 @@ static void test_cache(void) {
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/* 恢复默认上限 */
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ncm_cache_set_limit_gb(&c, 10);
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CHECK(ncm_cache_limit_gb(&c) == 10, "limit_gb reset to 10");
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/* §19 命名正名:ext 带前导点(".flac")与不带("flac")生成同一单点路径 */
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char p2[NCM_CACHE_DIR_MAX + 32];
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CHECKRC(ncm_cache_path(&c, "103", ".flac", p2, sizeof p2), "path with dotted ext");
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CHECK(strstr(p2, "song_103.flac") != NULL && strstr(p2, "..") == NULL,
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"dotted ext normalized to single dot (%s)", p2);
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/* §19 温和兼容:历史双点名 song_<id>..mp3(旧版 ext 带前导点所致)lookup 可命中 */
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{
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char legacy[NCM_CACHE_DIR_MAX + 40];
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snprintf(legacy, sizeof legacy, "%s/song_104..mp3", dir);
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FILE *lf = fopen(legacy, "wb");
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if (lf) { fputs("LEGACY", lf); fclose(lf); }
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int lrc = ncm_cache_lookup(&c, "104", "mp3", path, sizeof path);
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CHECK(lrc == NCM_OK && strstr(path, "song_104..mp3") != NULL,
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"legacy double-dot name hit (rc=%d path=%s)", lrc, path);
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}
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}
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static void test_qr(void) {
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