AskaEth
44a790dc1d
- §2① ncm_api.c level_attempt: 无损级(hires/lossless及以上)命中必须 type=flac，返回 mp3 视为该档不可用续降 (修「hires 档静默给 mp3 被当命中」) - §2② player_manager.c eff_level_for_resp: 显示档按响应实际格式/码率——mp3 绝不显示 Hi-Res(≤128k→标准, 否则极高), flac 采信链 eff; br 未知钳 ≤EXHIGH - §1 流式 SIGSEGV(《十面埋伏》sig=11) 审计+UBSAN 探针未复现 → 落地防御日志(dl start/done/interrupt + play done fin/exp/fail/underrun) - §3 cover.c: download_cover 回填 rc/status; 确定性 4xx(404等)不重试立即跳下一张, 仅瞬时错误退避(rc=%d status=%d 日志) - §4 playlist.c: pl_show_fav 我创建(is_collected==0)隐藏收藏钮, 我收藏保留, 搜索歌单保守显示(评论槽并入无空洞) - §5 ncm_cache.c 双点→单点迁移 + player_manager song_local_file 旧键→当前档位键(不重下) - §6 home.c: topbar 动作 ⚙↻⌕ 迁移 sb_icons 位图(meow_topappbar_set_item_icon, 修 4k 字库豆腐) - 测试: test_ncm_core 新 test_grade_flac_gate + test_cache 双点迁移断言; degrade_sim/player_flow_sim 桩 flac 化 - 验证: stream/player_flow/window/search/cache_evict/degrade sim 全 PASS + test_ncm_core host+mipsel(qemu) + mem_sim + build_ncm.sh 0 warning - 新 ncm md5 cb818786 (text 1017110/bss 1362500), 未部署留主会话; 0 真实 NCM 业务请求
894 lines
44 KiB
C
894 lines
44 KiB
C
/* play/player_manager.c — 播放线程：URL 获取(全档表逐级降级)→缓存(命中直接播/否则边下边播)→
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* minimp3/dr_flac 解码(stream_src 回调)→audio_out 直写。UI 不卡（网络+解码全在此线程）。
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*
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* 模型：一个持久的播放线程。外层循环取「目标曲目」，run_song() 负责一首歌的
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* 「下载(缓冲) → 解码 → 输出 → 结束/被指令打断」。暂停=冻结（停读停写停推 pos，状态置 PAUSED）；
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* seek=seek 解码器+重开输出到目标 ms（flac 精确帧/mp3 字节 offset 近似）；下一/上一首=打断当前 run_song 返回外层。
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* 所有跨线程共享状态在 g_play (mu)。g_st.ctx 的 device_id/cookie/cache 在播放期间稳定（登出会先停播）。
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* 返回码/错误经 g_play.err/errmsg 供 UI 提示。
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* §19：解码经 decoder.c 按 magic 分发（fLaC→dr_flac / 其它→minimp3）；rate/ch/bits 按实际流
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* 给 audio_out（flac ≤16bit→S16，>16bit→S32；audiod 格式归一/DAC 原生率跟随在服务端）；
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* 音频缓存键 = 歌曲ID+音质档位（用户定案 NCM_CACHE_DESIGN §2.5），旧无档位键温和兼容。
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* §20：音质体系全量——用户档超会员权限不硬拒（钳顶后逐级降级，eff_level 回填供播放页
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* 「已降级至 xx」标注；下一首回到用户档）；fee∈{1,4} 且非会员 → NCM_ERR_VIP 不发请求。
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* §21：边下边播（NCM_STREAM_PLAY 方案 A）——下载拆到独立线程（write(2) 直写 .tmp +
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* stream_src 推进可读边界），解码经 ncm_dec_open_src 的 read_cb（严格 fread 语义，F7）
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* pread 同一文件；预缓冲 ≥128KB 才 open（minimp3 MINIMP3_IO_SIZE 强制门槛，F3）；
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* 下载完成由播放线程 commit(rename)；缓存命中用 final=size 的静态 stream_src（P1：
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* 不再 mmap 整文件）；http 30s 绝对 deadline 已改空闲超时（P2）。.part 续传/LRU 防淘汰
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* 留阶段 3。
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* §25：切音质后重播同一曲——同 idx 再 play 时 cur/state 都不变（cur 同、state 由 PLAYING
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* 置 BUFFER），解码主循环此前只认 cur!=idx / STOPPED，导致：
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* ①旧曲（旧档）继续出声而 state 停在 BUFFER（UI 恒「缓冲中」）；②旧曲收尾后外层把
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* BUFFER 当「自然播完」顺延下一首，新档位永不生效。修法：以 seq 标识 play intent
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* （still_intent 取代仍_current），decode 主循环 seq 变化即 break，外层「自然播完」仅指
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* state==PLAYING——同 idx 新 intent 回到外层重跑 run_song（换档重播）。
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*/
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#include "../ncm_app_internal.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include "decoder.h"
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#include "stream_src.h"
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static pthread_t g_thr;
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static int g_thr_on;
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static int g_want_run = 1; /* 线程运行标志（quit=0） */
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#define PCM_CHUNK_FRAMES 4096 /* 每块帧数（≈旧 8192 样本/双声道） */
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/* ---- 线程内部一次性歌的状态 ---- */
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static char g_path[512]; /* 本地音频路径（缓存，mp3/flac） */
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static int64_t g_file_bytes;
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static int g_level; /* 音质档（来自设置） */
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static int g_cache_gb;
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/* 被抢占回调（SDK 读线程分发；audiod 后开流赢）：走 g_play 命令通道暂停（内部持锁），
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* 不直接动锁外状态。恢复时 audio_out_pause(0) 会检测流死并自动重开（见 audio_out.c）。 */
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static void on_audio_preempt(const char *by_app, void *ctx)
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{
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(void)ctx;
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meow_log(MEOW_LOG_WARN, "play: preempted by [%s] -> pause", (by_app && by_app[0]) ? by_app : "?");
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player_manager_pause(1);
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}
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int player_manager_state(void) { int s; pthread_mutex_lock(&g_play.mu); s = g_play.state; pthread_mutex_unlock(&g_play.mu); return s; }
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int player_manager_playing_song(void) { int s; pthread_mutex_lock(&g_play.mu); s = g_play.cur_song; pthread_mutex_unlock(&g_play.mu); return s; }
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int64_t player_manager_pos_ms(void) { int64_t p; pthread_mutex_lock(&g_play.mu); p = g_play.pos_ms; pthread_mutex_unlock(&g_play.mu); return p; }
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int64_t player_manager_dur_ms(void) { int64_t d; pthread_mutex_lock(&g_play.mu); d = g_play.dur_ms; pthread_mutex_unlock(&g_play.mu); return d; }
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int player_manager_error(void) { int e; pthread_mutex_lock(&g_play.mu); e = g_play.err; pthread_mutex_unlock(&g_play.mu); return e; }
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/* 实际生效音质档（§20）：下载时由 song_url_auto 回填；缓存命中按 ext 推断；-1=未定。 */
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int player_manager_eff_level(void) { int e; pthread_mutex_lock(&g_play.mu); e = g_play.eff_level; pthread_mutex_unlock(&g_play.mu); return e; }
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/* 本曲下载进度（UI 缓冲反馈，§18）。total=0 表示未知（song_url 未给 size / 缓存命中）。 */
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void player_manager_dl(int64_t *done, int64_t *total)
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{
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pthread_mutex_lock(&g_play.mu);
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if (done) *done = g_play.dl_done;
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if (total) *total = g_play.dl_total;
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pthread_mutex_unlock(&g_play.mu);
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}
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/* 播放曲快照（REPORT §17）：run_song 起播时物化并拷入 g_play.play_song（mu 保护），
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* 之后播放/歌词/IPC/UI 一律读快照——窗口滑出当前播放曲不影响播放，不许崩。 */
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int player_manager_current_song(ncm_song_t *out)
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{
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if (!out) return -1;
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pthread_mutex_lock(&g_play.mu);
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int ok = g_play.play_song_valid;
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if (ok) *out = g_play.play_song;
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pthread_mutex_unlock(&g_play.mu);
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return ok ? 0 : -1;
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}
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void player_manager_set_quality(int level, int cache_gb)
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{
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g_level = level;
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g_cache_gb = cache_gb;
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pthread_mutex_lock(&g_play.mu);
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g_play.err = 0;
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ncm_cache_set_limit_gb(&g_st.ctx.cache, cache_gb);
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pthread_mutex_unlock(&g_play.mu);
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}
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void player_manager_play(int song_idx)
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{
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pthread_mutex_lock(&g_play.mu);
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g_play.cur_song = song_idx;
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g_play.cmd = 0;
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g_play.state = NCM_PC_BUFFER;
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g_play.pos_ms = 0;
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g_play.err = 0; /* 新播放意图清旧错误（UI 错误条随新点歌消失） */
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g_play.dl_done = 0;
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g_play.dl_total = 0;
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g_play.seq++;
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g_play.eff_level = -1; /* 新播放意图：生效档未定（song_local_file 回填） */
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g_play.underruns = 0; /* §21：边下边播统计随新播放意图清零 */
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g_play.underrun_ms = 0;
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g_play.stalled = 0;
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pthread_mutex_unlock(&g_play.mu);
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}
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void player_manager_pause(int on)
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{
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pthread_mutex_lock(&g_play.mu);
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if (on) { if (g_play.state == NCM_PC_PLAYING) g_play.state = NCM_PC_PAUSED; }
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else { if (g_play.state == NCM_PC_PAUSED) g_play.state = NCM_PC_PLAYING; }
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pthread_mutex_unlock(&g_play.mu);
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}
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void player_manager_seek(int64_t ms)
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{
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pthread_mutex_lock(&g_play.mu);
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g_play.cmd = NCM_CTL_SEEK;
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g_play.cmd_seek_ms = ms;
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pthread_mutex_unlock(&g_play.mu);
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}
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void player_manager_next(int dir)
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{
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pthread_mutex_lock(&g_play.mu);
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int c = g_play.cur_song + dir;
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if (c < 0) c = 0;
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int cnt = appstate_queue_count(); /* §23：按队列来源（窗口全量 或 搜索条数） */
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if (c >= cnt) c = cnt - 1;
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if (c != g_play.cur_song) {
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g_play.cur_song = c;
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g_play.cmd = 0;
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g_play.state = NCM_PC_BUFFER;
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g_play.pos_ms = 0;
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g_play.err = 0;
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g_play.dl_done = 0;
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g_play.dl_total = 0;
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g_play.seq++;
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g_play.eff_level = -1; /* 切歌：生效档随新曲重估（下首恢复用户档，§20） */
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g_play.underruns = 0;
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g_play.underrun_ms = 0;
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g_play.stalled = 0;
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}
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pthread_mutex_unlock(&g_play.mu);
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}
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void player_manager_stop(void)
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{
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pthread_mutex_lock(&g_play.mu);
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g_play.cur_song = -1;
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g_play.state = NCM_PC_STOPPED;
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g_play.pos_ms = 0;
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g_play.play_song_valid = 0; /* 快照失效 */
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g_play.seq++;
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pthread_mutex_unlock(&g_play.mu);
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}
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/* ---- 每首歌的播放体（在外层循环内调用）---- */
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/* 边下边播每首曲的源对象（§21/阶段3）：读端 stream_src + 下载路径写端/线程。
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* run_song 栈上分配，下载线程 join 后才返回，生命周期安全。 */
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#define PREBUFFER_BYTES (128 * 1024) /* 预缓冲门槛 = minimp3 MINIMP3_IO_SIZE（F3 实测强制） */
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#define STREAM_RETRY_MAX 1 /* 阶段3（§21.8/§4.1）：首开声前失败重试上限（1 次，防风控） */
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#define STREAM_RETRY_BACKOFF_MS 800 /* 重试退避：避免连环请求轰炸（真实 NCM 节制，§7 风控） */
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/* song_download_attempt 返回哨兵（与 NCM_ERR_* 不冲突） */
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#define DL_RETRYABLE (-1001) /* 预缓冲前网络失败：可整首重试 */
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#define DL_ABORTED (-1002) /* 用户切歌/退出：静默放弃，不重试 */
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typedef struct {
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stream_src_t *src; /* 读端（下载路径 written 由下载线程推进；缓存命中=静态源） */
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ncm_cache_writer_t *w; /* 下载路径写端（commit/abort 归播放线程）；缓存命中=NULL */
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pthread_t dl_thr;
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int dl_thr_on;
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int dl_rc; /* 下载线程结果（NCM_OK / 负错误码） */
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char url[1024];/* 下载线程用（song_local_file 栈上 u.url 生命周期不够，拷贝） */
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size_t maxb; /* 下载限幅 */
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int64_t total; /* 标称大小（song_url size；0=未知；mp3 seek 分母） */
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/* 阶段3 .part 续传（§5.2） */
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uint64_t resume_base; /* >0=断点续传起点（.part 大小）；Http 带 Range: bytes=<n>- */
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int first_body; /* 首个 body 回调未处理（按响应状态切换写姿态） */
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int *st_ptr; /* 指向 dl_thread 的 status 局部变量（同线程，无竞态） */
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int need_fresh; /* 416/其它：服务器拒绝续传 → 放 .part、交调用方整首重下 */
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uint64_t skip; /* 200 忽略 Range：body 前 skip 字节与 .part 前缀重复，丢弃 */
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} song_src_t;
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/* http 体回调（下载线程上下文；ncm_http 每次投递 ≤4KB）：write(2) 直写落盘 +
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* 锁内推进 written + broadcast 唤醒读端 + 进度反馈。
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* 阶段3 续传（§5.2）：首 body 字节按 response status 切换写姿态——
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* 206（服务器支持 Range）：正常追加到 .part 尾；
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* 200（服务器忽略 Range）：body 头 resume_base 字节与 .part 前缀重复 → skip 丢弃；
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* 416/其它：放弃续传（need_fresh=1，abort），交调用方删残体整首重下。 */
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static int stream_dl_cb(void *ctx, const unsigned char *data, size_t len)
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{
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song_src_t *ss = (song_src_t *)ctx;
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if (stream_src_aborted(ss->src)) return 1; /* 切歌/停止：中止 http */
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if (ss->first_body) {
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ss->first_body = 0;
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int st = ss->st_ptr ? *ss->st_ptr : 0;
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if (ss->resume_base > 0 && st != 206 && st != 200) {
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ss->need_fresh = 1; /* 416/其它：放弃续传 */
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return 1; /* abort http（error body 不入盘） */
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}
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if (ss->resume_base > 0 && st == 200) ss->skip = ss->resume_base; /* 全量头段与 .part 重复 */
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}
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if (ss->skip) { /* 丢弃重复前缀字节 */
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if (ss->skip >= len) { ss->skip -= len; return 0; }
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data += (size_t)ss->skip; len -= (size_t)ss->skip; ss->skip = 0;
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}
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if (ncm_cache_write(ss->w, data, len) != NCM_OK) return 1;
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stream_src_note_written(ss->src, (uint64_t)len);
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pthread_mutex_lock(&g_play.mu);
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g_play.dl_done += (int64_t)len;
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pthread_mutex_unlock(&g_play.mu);
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return 0;
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}
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static void *dl_thread(void *arg)
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{
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song_src_t *ss = (song_src_t *)arg;
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ncm_http_req_t req;
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memset(&req, 0, sizeof req);
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req.url = ss->url;
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req.method = "GET";
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/* 续传：Range 头（§5.2）。URL 为本次新拉签名（不复用旧 URL，风控不增请求）。
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* UA 现状保留；Connection: close 由 http 层补。 */
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char hdrs[1200];
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if (ss->resume_base > 0)
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snprintf(hdrs, sizeof hdrs,
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"User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) "
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"AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36\r\n"
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"Range: bytes=%llu-", (unsigned long long)ss->resume_base);
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else
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snprintf(hdrs, sizeof hdrs,
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"User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) "
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"AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36");
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req.extra_hdrs = hdrs;
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req.verify_ca = NCM_HTTP_VERIFY_DEFAULT;
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req.timeout_ms = 15000; /* 绝对段（连接/握手/头）上限；body 空闲超时 15s（P2） */
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/* 状态感知下载：首 body 前写入 *status（续传分支）。同线程，st_ptr 无竞态。 */
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int status = 0;
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ss->st_ptr = &status;
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ss->first_body = 1;
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ncm_http_resp_t resp;
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int rc = ncm_http_download_status(&req, stream_dl_cb, ss, ss->maxb, &resp, &status);
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ss->st_ptr = NULL;
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if (rc == NCM_OK) {
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/* 放行 200 与（续传时的）206；其余按 HTTP 错。续传遇 200=服务器忽略 Range（skip 已丢头段）。 */
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int ok_st = (ss->resume_base > 0) ? (resp.status == 206 || resp.status == 200)
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: (resp.status == 200);
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if (!ok_st) rc = NCM_ERR_HTTP;
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}
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ss->dl_rc = rc;
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/* 结束通知：成功 final=全长；失败/中止 final=截断点+failed（读端播到截断点自然结束，F5） */
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stream_src_finish(ss->src, rc == NCM_OK ? 0 : rc);
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return NULL;
|
||
}
|
||
|
||
/* 收尾（播放线程，解码循环退出后调用）：中止在途下载并 join → commit(rename 转正) 或
|
||
* abort（阶段3：中断保留 .part 供下次续传；拒绝续传的 416 删残体）。 */
|
||
static void song_src_dispose(song_src_t *ss)
|
||
{
|
||
if (ss->dl_thr_on) {
|
||
stream_src_abort(ss->src); /* 已完成则无副作用；在途则 cb 返回 NZ 中止 */
|
||
pthread_join(ss->dl_thr, NULL);
|
||
ss->dl_thr_on = 0;
|
||
}
|
||
if (ss->w) {
|
||
if (ss->dl_rc == NCM_OK) {
|
||
/* 下载完整：commit 转正进 LRU 池（rename 不影响读端已开 fd，此处已近曲终） */
|
||
int64_t fin = (int64_t)stream_src_final(ss->src);
|
||
meow_log(MEOW_LOG_INFO, "play: dl done id? final=%lld commit", (long long)fin);
|
||
if (ncm_cache_commit(ss->w) == 0)
|
||
ncm_cache_evict(&g_st.ctx.cache); /* 写后检查：新落盘可能推过上限 */
|
||
} else if (ss->need_fresh) {
|
||
/* 服务器拒绝续传（416/其它）：残体不可再续，删（下首整首重下） */
|
||
meow_log(MEOW_LOG_WARN, "play: dl 416/refuse resume -> drop .part (dl_rc=%d)", ss->dl_rc);
|
||
ncm_cache_abort(ss->w);
|
||
} else {
|
||
/* 中断（切歌/断流）：保留 .part 残体，供下次播放 Range 续传（§5.2） */
|
||
meow_log(MEOW_LOG_INFO, "play: dl interrupt dl_rc=%d kept bytes=%lld -> .part",
|
||
ss->dl_rc, (long long)stream_src_written(ss->src));
|
||
ncm_cache_abort_part(ss->w);
|
||
}
|
||
ss->w = NULL;
|
||
}
|
||
if (ss->src) { stream_src_close(ss->src); ss->src = NULL; }
|
||
}
|
||
|
||
/* 缓存键（用户定案 NCM_CACHE_DESIGN §2.5）：歌曲ID + 音质档位 → "song_<id>_<level>.<ext>"。
|
||
* 同歌同档命中不重复下载；换档=新条目，旧档留给 LRU 自然淘汰。
|
||
* §20：键后缀用 ncm_api_level_key（sky 与 sky_c51 可区分）。 */
|
||
static void audio_cache_key(char *out, size_t sz, const char *id, int level)
|
||
{
|
||
snprintf(out, sz, "%s_%s", id, ncm_api_level_key(level));
|
||
}
|
||
|
||
/* §档位保真（REPORT §NEW 任务2②）：显示档以响应实际格式/码率为准——
|
||
* - type=flac：采信降级链 eff（无损档链已保证 flac，br/采样由解码后定）。
|
||
* - type=mp3：绝不显示 Hi-Res 及以上（Hi-Res 需 >16bit/高采样，mp3 达不到）。按响应 br
|
||
* 参与判定：≤128k→标准；否则→极高 HQ（≤320k，仅降级链中间档「较高 192k」不进 UI，不上屏）。
|
||
* - br 未知：钳 chain_eff 到 ≤EXHIGH（保守不夸大）。
|
||
* 返回 UI 显示用档位（g_play.eff_level）。 */
|
||
static int eff_level_for_resp(const ncm_play_url_t *u, int chain_eff, int want)
|
||
{
|
||
if (u && ncm_streq(u->type, "flac")) return (chain_eff >= 0) ? chain_eff : want;
|
||
int br = u ? u->br : 0;
|
||
if (br > 0) return (br <= 128000) ? NCM_LEVEL_STANDARD : NCM_LEVEL_EXHIGH; /* 按实际码率 */
|
||
int e = (chain_eff >= 0) ? chain_eff : want;
|
||
return (e < NCM_LEVEL_EXHIGH) ? e : NCM_LEVEL_EXHIGH; /* 未知：钳到 ≤EXHIGH */
|
||
}
|
||
|
||
/* 同曲重播护栏（§25 切音质后重播同一曲，替代 §18 的 still_current）：仅 cur/state 不够——
|
||
* 切音质时 play_manager_play
|
||
* 用的 idx 与在播曲相同（cur 不变）且置 state=BUFFER，仍会被 still_current 当「我的 intent
|
||
* 有效」而漏判。play/next 都会 seq++（新播放意图），故以 seq 判别「本次 intent 是否仍有效」。
|
||
* 调用方需持有 run_song 开始时捕获的 my_seq（本曲 intent 的 seq）。 */
|
||
static int still_intent(int idx, int my_seq)
|
||
{
|
||
pthread_mutex_lock(&g_play.mu);
|
||
int ok = (g_play.cur_song == idx) && (g_play.state == NCM_PC_BUFFER) &&
|
||
(g_play.seq == my_seq);
|
||
pthread_mutex_unlock(&g_play.mu);
|
||
return ok;
|
||
}
|
||
|
||
/* 一次「取 URL → 开写端(命中 .part 则续传) → 起下载线程 → 等预缓冲 ≥128KB」尝试（阶段3）。
|
||
* 返回：NCM_OK=src 就绪（下载在后台继续）；DL_RETRYABLE=预缓冲前网络失败（调用方整首重试）；
|
||
* DL_ABORTED=切歌/退出（静默放弃，不重试）；其它负数=硬错误（不重试）。
|
||
* *real_err 回填预缓冲失败的真实错误码。失败时 ss->w/src/dl_thr 已清理干净。 */
|
||
static int song_download_attempt(const ncm_song_t *s, int idx, int seq, const char *key, int want,
|
||
song_src_t *ss, char *path, size_t psz, int64_t *bytes,
|
||
int *real_err)
|
||
{
|
||
const char *id = s->id;
|
||
ss->resume_base = 0; ss->skip = 0; ss->need_fresh = 0; ss->first_body = 1; /* 每次尝试干净 */
|
||
/* 播放地址：账户/fee 感知降级（auto_av 链内钳顶+门槛跳档+fee 门禁，300 修复） */
|
||
ncm_play_url_t u;
|
||
int eff = -1;
|
||
int rc = ncm_api_song_url_auto_av(g_st.ctx.device_id, g_st.ctx.cookie, id,
|
||
account_vip(), s->fee, want, &u, &eff);
|
||
if (rc != NCM_OK) return rc;
|
||
if (!u.url[0]) return NCM_ERR_NOTFOUND;
|
||
pthread_mutex_lock(&g_play.mu);
|
||
g_play.eff_level = eff_level_for_resp(&u, eff, want); /* §2②：显示档按实际格式/码率 */
|
||
g_play.dl_total = (u.size > 0) ? u.size : 0; /* 缓冲进度% 分母（0=未知只转菊花） */
|
||
pthread_mutex_unlock(&g_play.mu);
|
||
/* 落盘扩展名：type 权威；type 缺失时看 url 扩展名，默认 mp3 */
|
||
const char *ext = "mp3";
|
||
if (ncm_streq(u.type, "flac")) ext = "flac";
|
||
else if (!u.type[0] && strstr(u.url, ".flac")) ext = "flac";
|
||
|
||
/* 写前检查：池大小超限先按 LRU 淘汰（半成品 .tmp/.part 已被 evict 跳过，无在途误删风险） */
|
||
ncm_cache_evict(&g_st.ctx.cache);
|
||
|
||
/* 断点续传起点（§5.2）：.part 残体存在且本次 URL 的 size > 残体大小 → 续传：
|
||
* 追加打开 .part（O_APPEND，保留已写字节），written 从 part_size 起算（读端秒开播）。 */
|
||
uint64_t part_size = 0;
|
||
int have_part = (ncm_cache_part_size(&g_st.ctx.cache, key, ext, &part_size) == NCM_OK) &&
|
||
part_size > 0;
|
||
int resuming = 0;
|
||
if (have_part && (long)part_size < u.size) {
|
||
rc = ncm_cache_open_resume(&g_st.ctx.cache, key, ext, &ss->w);
|
||
if (rc == NCM_OK) { ss->resume_base = part_size; resuming = 1; }
|
||
else have_part = 0; /* 残体打开失败：转整首 */
|
||
}
|
||
if (!resuming) {
|
||
if (have_part) ncm_cache_part_remove(&g_st.ctx.cache, key, ext); /* 残体过期（size 不符）：删 */
|
||
rc = ncm_cache_open(&g_st.ctx.cache, key, ext, &ss->w);
|
||
if (rc != NCM_OK) return rc;
|
||
}
|
||
if (stream_src_open_stream_at(&ss->src, ncm_cache_writer_tmp_path(ss->w),
|
||
resuming ? part_size : 0) != 0) {
|
||
ncm_cache_abort(ss->w); ss->w = NULL;
|
||
return NCM_ERR_IO;
|
||
}
|
||
ncm_strlcpy(path, ncm_cache_writer_tmp_path(ss->w), psz); /* 日志用 */
|
||
ss->total = (u.size > 0) ? u.size : 0;
|
||
/* §NEW 任务1（SIGSEGV 定位）：下载链路诊断日志——起播即留档，断流/崩溃后从 log 回溯。 */
|
||
meow_log(MEOW_LOG_INFO,
|
||
"play: dl start id=%s lv=%s eff=%s size=%lld resume=%s url=%.56s",
|
||
id, ncm_api_level_key(want), ncm_api_level_key(eff >= 0 ? eff : want),
|
||
(long long)u.size, resuming ? "yes" : "no", u.url);
|
||
/* 上限：Hi-Res flac 单曲可达数百 MB，flac 上限 1GB；mp3 维持 64MB。
|
||
* size 可信时按 size 限幅（防超额），未知按格式默认上限（续传 body ≤ size 亦安全）。 */
|
||
size_t cap = (ext[0] == 'f') ? (1024u << 20) : (64u << 20);
|
||
ss->maxb = (u.size > 0 && (uint64_t)u.size < cap) ? (size_t)u.size : cap;
|
||
ncm_strlcpy(ss->url, u.url, sizeof ss->url);
|
||
if (ncm_thread_create(&ss->dl_thr, dl_thread, ss) != 0) {
|
||
ncm_cache_abort(ss->w); ss->w = NULL;
|
||
stream_src_close(ss->src); ss->src = NULL;
|
||
return NCM_ERR_IO;
|
||
}
|
||
ss->dl_thr_on = 1;
|
||
|
||
/* 预缓冲：≥128KB（minimp3 强制门槛，F3）才放行 open_cb；final/failed 提前出。
|
||
* still_intent 护栏覆盖本阻塞点：等待期间切歌/停止/同曲重播 → 保留 .part 静默放弃。 */
|
||
for (;;) {
|
||
int wr = stream_src_wait(ss->src, PREBUFFER_BYTES, 100);
|
||
if (wr != 0) break;
|
||
if (g_app_quit || !still_intent(idx, seq)) {
|
||
stream_src_abort(ss->src);
|
||
pthread_join(ss->dl_thr, NULL); ss->dl_thr_on = 0;
|
||
ncm_cache_abort_part(ss->w); ss->w = NULL; /* 切歌/退出：保留残体供下次续传 */
|
||
stream_src_close(ss->src); ss->src = NULL;
|
||
return DL_ABORTED; /* 调用方 still_intent 复核后静默返回 */
|
||
}
|
||
}
|
||
if (stream_src_aborted(ss->src)) {
|
||
int frc = stream_src_failed(ss->src);
|
||
pthread_join(ss->dl_thr, NULL); ss->dl_thr_on = 0;
|
||
ncm_cache_abort_part(ss->w); ss->w = NULL; /* 中止：保留残体 */
|
||
stream_src_close(ss->src); ss->src = NULL;
|
||
return frc ? frc : NCM_ERR_NET;
|
||
}
|
||
if (stream_src_failed(ss->src) && stream_src_written(ss->src) < PREBUFFER_BYTES) {
|
||
int frc = stream_src_failed(ss->src);
|
||
if (real_err) *real_err = frc;
|
||
pthread_join(ss->dl_thr, NULL); ss->dl_thr_on = 0;
|
||
/* 预缓冲前网络失败：删残体（不保留 .part），交调用方整首重试（含续传失败重下）。
|
||
* 已下过门槛的断流照常放行——读端播到截断点自然结束（F5）。 */
|
||
ncm_cache_abort(ss->w); ss->w = NULL;
|
||
stream_src_close(ss->src); ss->src = NULL;
|
||
return DL_RETRYABLE;
|
||
}
|
||
/* final < 门槛（小文件/截断）：照样放行，open_cb 读到的就是全部 */
|
||
*bytes = ss->total > 0 ? ss->total : (int64_t)stream_src_written(ss->src);
|
||
return NCM_OK;
|
||
}
|
||
|
||
/* 得到本地音频源（§21 边下边播）。命中缓存 → 静态 stream_src（final=size，read 不阻塞，
|
||
* 顺带修 P1：不再 mmap 整文件）；否则 URL 降级 → 起下载线程写 .tmp → 预缓冲 ≥128KB 即返回
|
||
* （下载在后台继续，解码经 stream_src read_cb 跟播）。
|
||
* 返回 NCM_OK 或负错误码；成功时 ss->src 就绪、ss->total 与 *bytes 回填（下载未完成时
|
||
* total=song_url 标称 size，0=未知）。s 为播放曲快照（run_song 物化，与窗口解耦 §17）。
|
||
* §20 权限/会员：
|
||
* - fee 门禁（BIZ_NOTES §3 社区口径）：fee∈{1,4}（VIP 才能听/付费专）且当前非会员
|
||
* → 直接 NCM_ERR_VIP，**不发 song_url 请求**（省一次请求，防风控）；fee=0/8 放行
|
||
* （8=免费听低音质，播放允许）。本地缓存命中优先于门禁（缓存可播不拦）。
|
||
* - VIP 档上限：用户档超会员权限不硬拒，播放时先钳到会员允许的最高档再逐级降级
|
||
* （免去注定空 URL 的高档请求）；实际生效档回填 g_play.eff_level。 */
|
||
static int song_local_file(const ncm_song_t *s, int idx, int seq, song_src_t *ss,
|
||
char *path, size_t psz, int64_t *bytes)
|
||
{
|
||
memset(ss, 0, sizeof *ss);
|
||
const char *id = s->id;
|
||
char key[64];
|
||
audio_cache_key(key, sizeof key, id, g_level);
|
||
|
||
/* 缓存命中 → 静态 stream_src（新键两扩展名都试；档位=用户设定档，降级产物也归该档键） */
|
||
int hit = 0;
|
||
if (ncm_cache_lookup(&g_st.ctx.cache, key, "flac", path, psz) == NCM_OK ||
|
||
ncm_cache_lookup(&g_st.ctx.cache, key, "mp3", path, psz) == NCM_OK) {
|
||
hit = 1;
|
||
} else if (ncm_cache_lookup(&g_st.ctx.cache, id, "mp3", path, psz) == NCM_OK) {
|
||
/* §19 前存量：无档位后缀的 song_<id>[.]mp3（含历史双点名 song_<id>..mp3）。
|
||
* §NEW 任务5：命中即**迁移重命名**到当前档位键 song_<id>_<level>.mp3（下方 hit==2
|
||
* 分支做 rename，不重下），之后不再回退旧键。 */
|
||
hit = 2;
|
||
}
|
||
if (hit) {
|
||
struct stat st;
|
||
if (stat(path, &st) != 0) return NCM_ERR_NOENT;
|
||
if (hit == 2) {
|
||
/* §NEW 任务5：存量旧键（无档位后缀 song_<id>.mp3 / 历史双点 song_<id>..mp3）
|
||
* 迁移重命名到当前档位键 song_<id>_<g_level>.<ext>（**不重下**，仅改名）。
|
||
* 目标已存在（该档已有正式条目）则删旧；迁移失败回退旧路径照常播。 */
|
||
char nk[64], np[512];
|
||
audio_cache_key(nk, sizeof nk, id, g_level);
|
||
const char *dot = strrchr(path, '.');
|
||
const char *ext = dot ? dot + 1 : "mp3";
|
||
if (ncm_cache_path(&g_st.ctx.cache, nk, ext, np, sizeof np) == NCM_OK) {
|
||
struct stat nst;
|
||
if (stat(np, &nst) == 0) unlink(path); /* 目标已在（或并发建成）：删旧双点/旧名 */
|
||
else rename(path, np);
|
||
ncm_strlcpy(path, np, psz); /* 迁移后即用新路径（无论 rename 成败，
|
||
* 覆盖到同一目标；失败则下次会再试） */
|
||
if (stat(np, &st) != 0) return NCM_ERR_NOENT;
|
||
}
|
||
}
|
||
if (stream_src_open_static(&ss->src, path, (uint64_t)st.st_size) != 0)
|
||
return NCM_ERR_IO;
|
||
ss->total = (int64_t)st.st_size;
|
||
*bytes = ss->total;
|
||
/* 生效档推断（缓存键=用户档，降级产物归用户档键，无法精确还原）：
|
||
* mp3 实体 + 用户档 > 极高 → 必为降级产物，标 EXHIGH；其余按用户档显示。
|
||
* （flac 实体视为与用户档一致；hires→lossless 档内降级会高估显示，已知取舍。） */
|
||
const char *dot = strrchr(path, '.');
|
||
int eff = g_level;
|
||
if (dot && ncm_streq(dot, "mp3") && g_level > NCM_LEVEL_EXHIGH)
|
||
eff = NCM_LEVEL_EXHIGH;
|
||
pthread_mutex_lock(&g_play.mu);
|
||
g_play.eff_level = eff;
|
||
pthread_mutex_unlock(&g_play.mu);
|
||
return NCM_OK;
|
||
}
|
||
|
||
/* fee 门禁：VIP 才能听（1=VIP 歌曲 / 4=付费数字专辑）且非会员 → 不请求 url。
|
||
* （必须在缓存查找之后：已缓存的过期/下架曲本地可播，NCM_CACHE_DESIGN §2.4。） */
|
||
if ((s->fee == 1 || s->fee == 4) && account_vip() < NCM_VIP_CVIP)
|
||
return NCM_ERR_VIP;
|
||
|
||
/* 播放下载（阶段3 重试策略 §4.1，风控 §7：真实 NCM 请求节制）：用户档先按会员权限
|
||
* 钳顶，再逐档降级（§20）。预缓冲前网络失败重试 STREAM_RETRY_MAX 次（退避
|
||
* STREAM_RETRY_BACKOFF_MS 防连环轰炸），重试每次重新 song_url（新签名 URL，eapi 便宜）；
|
||
* 硬错误/切歌/退出不重试。返回值：NCM_OK=src 就绪；DL_ABORTED=切歌/退出；其它负=错误。 */
|
||
int want = g_level;
|
||
int vip_cap = account_level_cap();
|
||
if (want > vip_cap) want = vip_cap;
|
||
int last_rc = NCM_ERR_NET;
|
||
for (int attempt = 0; attempt <= STREAM_RETRY_MAX; attempt++) {
|
||
if (attempt > 0) {
|
||
meow_log(MEOW_LOG_WARN, "play: download retry %d/%d id=%s backoff=%dms",
|
||
attempt, STREAM_RETRY_MAX, id, STREAM_RETRY_BACKOFF_MS);
|
||
usleep(STREAM_RETRY_BACKOFF_MS * 1000); /* 退避：不轰炸 */
|
||
if (g_app_quit || !still_intent(idx, seq)) return NCM_ERR_IO;
|
||
}
|
||
int real_err = NCM_ERR_NET;
|
||
int rc = song_download_attempt(s, idx, seq, key, want, ss, path, psz, bytes, &real_err);
|
||
if (rc == NCM_OK) return NCM_OK;
|
||
if (rc == DL_RETRYABLE) { last_rc = real_err; continue; } /* 重试整首 */
|
||
return rc; /* DL_ABORTED / 硬错误：不重试 */
|
||
}
|
||
return last_rc; /* 重试耗尽：最后一次网络错误 */
|
||
}
|
||
|
||
static void set_err(int err, const char *msg)
|
||
{
|
||
pthread_mutex_lock(&g_play.mu);
|
||
g_play.err = err;
|
||
if (msg) { ncm_strlcpy(g_play.errmsg, msg, sizeof g_play.errmsg); }
|
||
g_play.state = NCM_PC_STOPPED;
|
||
pthread_mutex_unlock(&g_play.mu);
|
||
}
|
||
|
||
/* 一首歌：源就绪(缓存/下载线程+预缓冲)→解码→输出，直到结束或被打断。返回后由外层处理下一首。 */
|
||
static void run_song(int idx)
|
||
{
|
||
/* §17 滑窗兼容：物化目标曲（窗内命中 / 盘缓存 / song_detail 单曲）并整体快照进
|
||
* g_play.play_song——之后本曲所有字段读快照，窗口滑出当前播放曲不影响播放。 */
|
||
/* §25：本条 run_song 服务的 play intent 用 seq 标识（play/next 递增）。切音质后重播
|
||
* 同一曲（同 idx 再 play）也会 seq++，故「我的 intent 是否仍有效」必须以 seq 判别
|
||
* （仅 cur/state 不够：同 idx 重播时 cur 不变、state 仍 BUFFER，详见 still_intent）。 */
|
||
pthread_mutex_lock(&g_play.mu);
|
||
int my_seq = g_play.seq;
|
||
int my_cur = g_play.cur_song;
|
||
pthread_mutex_unlock(&g_play.mu);
|
||
if (my_cur != idx) return; /* 外层已同步过，防御 */
|
||
|
||
ncm_song_t s;
|
||
if (appstate_queue_song(idx, &s) != 0) { /* §23：按 queue_src 取（窗口 或 搜索队列） */
|
||
set_err(NCM_ERR_ARG, "load failed");
|
||
return;
|
||
}
|
||
if (!still_intent(idx, my_seq)) return; /* 物化期间已切歌/重播：不写过期快照 */
|
||
pthread_mutex_lock(&g_play.mu);
|
||
g_play.play_song = s;
|
||
g_play.play_song_valid = 1;
|
||
pthread_mutex_unlock(&g_play.mu);
|
||
|
||
song_src_t ss;
|
||
int64_t file_bytes = 0;
|
||
char path[512];
|
||
int rc = song_local_file(&s, idx, my_seq, &ss, path, sizeof path, &file_bytes);
|
||
if (rc != NCM_OK) {
|
||
if (!still_intent(idx, my_seq)) return; /* 期间已切歌/同曲重播：静默放弃（已落盘部分不亏） */
|
||
const char *m = (rc == NCM_ERR_VIP) ? "VIP only (fee gate)"
|
||
: (rc == NCM_ERR_NOTFOUND) ? "no stream (VIP/copyright)"
|
||
: (rc == NCM_ERR_AUTH) ? "session expired" : "load failed";
|
||
set_err(rc, m);
|
||
return;
|
||
}
|
||
if (!still_intent(idx, my_seq)) { /* 预缓冲完成但已切歌/同曲重播：勿开解码/勿动状态 */
|
||
song_src_dispose(&ss);
|
||
return;
|
||
}
|
||
ncm_strlcpy(g_path, path, sizeof g_path);
|
||
g_file_bytes = file_bytes;
|
||
|
||
int64_t dur = s.duration_ms > 0 ? s.duration_ms : 0;
|
||
|
||
/* 解码分发（§19/§21）：stream_src 上 magic 探测 fLaC→dr_flac / 其它→minimp3（open_cb
|
||
* SEEK_TO_BYTE|DO_NOT_SCAN）；rate/ch/bits 按实际流。 */
|
||
ncm_decoder_t *dec = NULL;
|
||
int rate = 0, ch = 0, bits = 0;
|
||
int64_t total_frames = 0;
|
||
if (ncm_dec_open_src(&dec, ss.src, &rate, &ch, &bits, &total_frames) != 0) {
|
||
song_src_dispose(&ss);
|
||
if (!still_intent(idx, my_seq)) return; /* open 期间（flac 元数据等待）已切歌/重播 */
|
||
set_err(NCM_ERR_IO, "decode open failed"); return;
|
||
}
|
||
if (dur <= 0 && total_frames > 0 && rate > 0) dur = total_frames * 1000 / rate;
|
||
|
||
/* 音频输出：按实际流参数开（flac ≤16bit→S16，>16bit→S32；audiod 侧格式归一+原生率跟随） */
|
||
if (audio_out_open(rate, ch, bits) != 0) {
|
||
ncm_dec_close(dec); song_src_dispose(&ss);
|
||
set_err(NCM_ERR_IO, "audio open failed"); return;
|
||
}
|
||
|
||
/* 状态→播放 */
|
||
pthread_mutex_lock(&g_play.mu);
|
||
g_play.state = NCM_PC_PLAYING;
|
||
g_play.pos_ms = 0;
|
||
g_play.dur_ms = dur;
|
||
g_play.err = 0;
|
||
pthread_mutex_unlock(&g_play.mu);
|
||
meow_log(MEOW_LOG_INFO, "play: start idx=%d id=%s fmt=%s %dHz/%dch/%dbit dur=%lldms level=%s eff=%s",
|
||
idx, s.id, ncm_dec_format(dec), rate, ch, bits, (long long)dur,
|
||
ncm_api_level_key(g_level), ncm_api_level_key(g_play.eff_level >= 0 ? g_play.eff_level : g_level));
|
||
|
||
/* 单块缓冲：4096 帧 × ≤2ch × 4B（S32 上限）= 32KB，静态（播放线程单实例，省 32KB 栈）。 */
|
||
static int32_t pcm[PCM_CHUNK_FRAMES * 2];
|
||
int64_t frames_done = 0; /* 已输出帧（每通道） */
|
||
int need_seek_ms = -1;
|
||
int paused_edge = 0; /* 暂停沿：进暂停已向 audiod 发 pause */
|
||
int stalled_edge = 0; /* §21 停滞沿：已对 audiod pause(1)，待数据恢复 pause(0) */
|
||
int underruns_seen = 0;
|
||
|
||
for (;;) {
|
||
if (g_app_quit) break;
|
||
|
||
/* 取命令 */
|
||
pthread_mutex_lock(&g_play.mu);
|
||
int cmd = g_play.cmd; g_play.cmd = 0;
|
||
int64_t seek_ms = g_play.cmd_seek_ms;
|
||
int cur = g_play.cur_song;
|
||
int st = g_play.state;
|
||
int seq = g_play.seq;
|
||
pthread_mutex_unlock(&g_play.mu);
|
||
|
||
if (cur != idx) { meow_log(MEOW_LOG_INFO, "play: switch idx=%d -> %d", idx, cur); break; } /* 切歌 → 回外层 */
|
||
if (st == NCM_PC_STOPPED) { meow_log(MEOW_LOG_INFO, "play: stopped idx=%d", idx); break; }
|
||
if (seq != my_seq) { /* §25：同 idx 新播放意图（切音质后重播同一曲）——seq 变
|
||
* 即新 intent，必须打断当前曲回外层重跑（换档重播）。 */
|
||
meow_log(MEOW_LOG_INFO, "play: new intent idx=%d seq=%d->%d -> restart", idx, my_seq, seq);
|
||
break; /* 当前曲（旧档）立即停，外层按新 cur/state 重跑 run_song */
|
||
}
|
||
|
||
if (cmd == NCM_CTL_SEEK && seek_ms >= 0) { need_seek_ms = (int)seek_ms; }
|
||
|
||
if (st == NCM_PC_PAUSED) {
|
||
if (!paused_edge) { /* 进暂停：停 PCM 时钟但不丢流（audiod MSG_AUDIO_PAUSE） */
|
||
paused_edge = 1;
|
||
meow_log(MEOW_LOG_INFO, "play: paused idx=%d pos=%lldms", idx,
|
||
rate > 0 ? (long long)(frames_done * 1000 / rate) : 0);
|
||
audio_out_pause(1);
|
||
}
|
||
usleep(40 * 1000);
|
||
continue; /* 冻结 */
|
||
}
|
||
if (paused_edge) { /* 出暂停：恢复 audiod 流（流死则自动重开） */
|
||
paused_edge = 0;
|
||
meow_log(MEOW_LOG_INFO, "play: resumed idx=%d", idx);
|
||
if (audio_out_pause(0) != 0) { set_err(NCM_ERR_IO, "audio resume failed"); break; }
|
||
}
|
||
|
||
if (need_seek_ms >= 0) {
|
||
/* seek：flac 精确帧 / mp3 字节近似（MP3D_SEEK_TO_BYTE 直接 seek，无需关重开）；
|
||
* 目标超已下载区时 read_cb 自然阻塞等待（F4），输出重开 */
|
||
meow_log(MEOW_LOG_INFO, "play: seek idx=%d -> %dms", idx, need_seek_ms);
|
||
audio_out_close();
|
||
if (ncm_dec_seek_ms(dec, need_seek_ms, g_file_bytes, dur) != 0) {
|
||
set_err(NCM_ERR_IO, "seek failed"); break;
|
||
}
|
||
if (audio_out_open(rate, ch, bits) != 0) { set_err(NCM_ERR_IO, "audio reopen failed"); break; }
|
||
frames_done = (int64_t)need_seek_ms * rate / 1000;
|
||
need_seek_ms = -1;
|
||
continue;
|
||
}
|
||
|
||
/* §21 停滞联动：read_cb 单次等待 >1s（audiod 流饥饿风险）→ 先对 audiod pause(1)
|
||
* 保住流（暂停路径现状已有），数据恢复后 pause(0)（流死自动重开）。 */
|
||
if (stream_src_take_stalled(ss.src) && !stalled_edge) {
|
||
stalled_edge = 1;
|
||
meow_log(MEOW_LOG_INFO, "play: stalled idx=%d -> audio pause(1)", idx);
|
||
audio_out_pause(1);
|
||
pthread_mutex_lock(&g_play.mu);
|
||
g_play.stalled = 1;
|
||
pthread_mutex_unlock(&g_play.mu);
|
||
}
|
||
|
||
int64_t frames = ncm_dec_read(dec, pcm, PCM_CHUNK_FRAMES);
|
||
if (frames == 0) { /* 播完（下载中断时=截断点，F5） */
|
||
/* §NEW 任务1（SIGSEGV 定位）：播完时区分自然完成 vs 截断（下载未满/失败）。
|
||
* expected=标称 size；final=实际落盘；failed<0=中断。供真机崩溃回溯。 */
|
||
int64_t fin = (int64_t)stream_src_final(ss.src);
|
||
int frc = stream_src_failed(ss.src);
|
||
int64_t exp = ss.total > 0 ? ss.total : 0;
|
||
meow_log(MEOW_LOG_INFO,
|
||
"play: done idx=%d frames=%lld fin=%lld exp=%lld fail=%d underrun=%d",
|
||
idx, (long long)frames_done, (long long)fin, (long long)exp, frc,
|
||
(int)stream_src_written(ss.src));
|
||
break;
|
||
}
|
||
/* 写失败（流死/audiod 断链）：置错停播——旧版静默 break 会被外层当「自然播完」
|
||
* 自动顺延下一首，流死时连环跳歌并狂发 song_url 请求（§18 修）。 */
|
||
if (audio_out_write(pcm, (int)frames) != (int)frames) {
|
||
if (!g_app_quit) set_err(NCM_ERR_IO, "audio write failed");
|
||
break;
|
||
}
|
||
frames_done += frames;
|
||
if (stalled_edge) { /* 数据恢复：解除停滞 pause */
|
||
stalled_edge = 0;
|
||
meow_log(MEOW_LOG_INFO, "play: stall recovered idx=%d -> audio pause(0)", idx);
|
||
if (audio_out_pause(0) != 0) { set_err(NCM_ERR_IO, "audio resume failed"); break; }
|
||
pthread_mutex_lock(&g_play.mu);
|
||
g_play.stalled = 0;
|
||
pthread_mutex_unlock(&g_play.mu);
|
||
}
|
||
/* underrun 统计落 g_play（§21，设置页/日志可见；变化才持锁写） */
|
||
{
|
||
int u; uint64_t wm;
|
||
stream_src_stats(ss.src, &u, &wm);
|
||
if (u != underruns_seen) {
|
||
underruns_seen = u;
|
||
pthread_mutex_lock(&g_play.mu);
|
||
g_play.underruns = u;
|
||
g_play.underrun_ms = wm;
|
||
pthread_mutex_unlock(&g_play.mu);
|
||
meow_log(MEOW_LOG_INFO, "play: underrun idx=%d count=%d wait=%llums",
|
||
idx, u, (unsigned long long)wm);
|
||
}
|
||
}
|
||
/* 更新进度（~200ms 节流）*/
|
||
int64_t pos = rate > 0 ? frames_done * 1000 / rate : 0;
|
||
pthread_mutex_lock(&g_play.mu);
|
||
g_play.pos_ms = pos;
|
||
if (dur > 0 && pos >= dur) g_play.pos_ms = dur;
|
||
pthread_mutex_unlock(&g_play.mu);
|
||
}
|
||
|
||
audio_out_close();
|
||
ncm_dec_close(dec);
|
||
/* 下载完成由播放线程 commit(rename) / 中断 abort（阶段 2 语义，§21） */
|
||
song_src_dispose(&ss);
|
||
/* 若应继续播下一首且非因命令打断，由外层处理（外层见 cur==idx 且需自然结束） */
|
||
}
|
||
|
||
/* 外层播放线程循环 */
|
||
static void *player_thread(void *arg)
|
||
{
|
||
(void)arg;
|
||
while (g_want_run && !g_app_quit) {
|
||
pthread_mutex_lock(&g_play.mu);
|
||
int cur = g_play.cur_song;
|
||
int st = g_play.state;
|
||
pthread_mutex_unlock(&g_play.mu);
|
||
|
||
if (cur < 0 || cur >= appstate_queue_count() || st == NCM_PC_STOPPED) {
|
||
usleep(60 * 1000);
|
||
continue;
|
||
}
|
||
/* 以本地快照播放（idx 被外层线程独占，无需再锁） */
|
||
run_song(cur);
|
||
|
||
pthread_mutex_lock(&g_play.mu);
|
||
int cur2 = g_play.cur_song;
|
||
int st2 = g_play.state;
|
||
pthread_mutex_unlock(&g_play.mu);
|
||
/* 自然播完（decode 循环正常退出，state 仍 PLAYING）且无新命令 → 顺延下一首；
|
||
* 若是因同 idx 重播（seq 变、state=BUFFER）返回，则循环顶会按当前 cur/state 重跑
|
||
* run_song（§25：切音质后重播同一曲换档生效），**不得**当播完顺延下一首。 */
|
||
int qc = appstate_queue_count();
|
||
if (cur2 >= 0 && cur2 < qc && st2 == NCM_PC_PLAYING && cur2 == cur) {
|
||
int nx = cur + 1;
|
||
if (nx < qc) { player_manager_next(1); }
|
||
else { player_manager_stop(); }
|
||
} else {
|
||
usleep(50 * 1000);
|
||
}
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
/* ---- 歌词后台加载（二期）：UI 不阻塞 —— 持久 worker 监视当前播放歌曲，首播/切歌/自动顺延
|
||
* 时在独立线程拉取并解析，UI 经 lyric_state() 判「加载中 / 无词」。 ----
|
||
* §17：曲目 id 改读播放快照（g_play.play_song，mu 保护），不再依赖窗口内
|
||
* g_st.songs[]——窗口滑出当前播放曲歌词照常。 */
|
||
static pthread_mutex_t g_lyrmu = PTHREAD_MUTEX_INITIALIZER;
|
||
static pthread_t g_lyr_thr;
|
||
static int g_lyr_thr_on;
|
||
static volatile int g_lyr_state; /* 0=空闲/未拉 1=加载中 2=已拉完 */
|
||
static char g_lyr_song_id[24]; /* 歌词归属歌曲 id */
|
||
|
||
static void *lyric_worker(void *arg)
|
||
{
|
||
(void)arg;
|
||
char last_id[24] = "";
|
||
while (!g_app_quit) {
|
||
usleep(300 * 1000);
|
||
char id[24];
|
||
pthread_mutex_lock(&g_play.mu);
|
||
int idx = g_play.cur_song;
|
||
int have = g_play.play_song_valid;
|
||
ncm_strlcpy(id, have ? g_play.play_song.id : "", sizeof id);
|
||
pthread_mutex_unlock(&g_play.mu);
|
||
if (idx < 0 || idx >= appstate_queue_count() || !have) {
|
||
lyric_clear();
|
||
pthread_mutex_lock(&g_lyrmu);
|
||
g_lyr_song_id[0] = 0;
|
||
g_lyr_state = 0;
|
||
pthread_mutex_unlock(&g_lyrmu);
|
||
last_id[0] = 0;
|
||
continue;
|
||
}
|
||
if (!id[0]) continue;
|
||
if (strcmp(id, last_id) == 0) continue; /* 同一曲已拉/在拉 */
|
||
|
||
ncm_strlcpy(last_id, id, sizeof last_id);
|
||
lyric_clear();
|
||
pthread_mutex_lock(&g_lyrmu);
|
||
g_lyr_state = 1; /* 加载中 */
|
||
pthread_mutex_unlock(&g_lyrmu);
|
||
|
||
char *lrc = (char *)malloc(64 * 1024);
|
||
char *tl = (char *)malloc(32 * 1024);
|
||
if (!lrc || !tl) {
|
||
free(lrc); free(tl);
|
||
pthread_mutex_lock(&g_lyrmu); g_lyr_state = 0; pthread_mutex_unlock(&g_lyrmu);
|
||
continue;
|
||
}
|
||
int rc = ncm_api_lyric(g_st.ctx.device_id, g_st.ctx.cookie, id, lrc, 64 * 1024, tl, 32 * 1024);
|
||
if (rc == NCM_OK) lyric_parse(lrc, tl);
|
||
free(lrc); free(tl);
|
||
|
||
pthread_mutex_lock(&g_lyrmu);
|
||
ncm_strlcpy(g_lyr_song_id, id, sizeof g_lyr_song_id);
|
||
g_lyr_state = 2; /* 拉完（可能 0 行=无词） */
|
||
pthread_mutex_unlock(&g_lyrmu);
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
static void lyric_ensure_worker(void)
|
||
{
|
||
pthread_mutex_lock(&g_lyrmu);
|
||
if (!g_lyr_thr_on) {
|
||
g_lyr_thr_on = 1;
|
||
if (ncm_thread_create(&g_lyr_thr, lyric_worker, NULL) == 0) pthread_detach(g_lyr_thr);
|
||
else g_lyr_thr_on = 0;
|
||
}
|
||
pthread_mutex_unlock(&g_lyrmu);
|
||
}
|
||
|
||
/* 为当前曲目「异步」拉歌词：确保后台 worker 在跑即返回（UI 不阻塞网络/解析）。
|
||
* 实际拉取+解析在 worker 线程（约 0.3s 内开始），结束置 lyric_state()=2。 */
|
||
int player_manager_load_lyric(void)
|
||
{
|
||
lyric_ensure_worker();
|
||
return NCM_OK;
|
||
}
|
||
|
||
/* 歌词加载状态（UI 判「loading / no lyric」）。 */
|
||
int lyric_state(void)
|
||
{
|
||
int s;
|
||
pthread_mutex_lock(&g_lyrmu);
|
||
s = g_lyr_state;
|
||
pthread_mutex_unlock(&g_lyrmu);
|
||
return s;
|
||
}
|
||
|
||
int player_manager_start(void)
|
||
{
|
||
if (g_thr_on) return 0;
|
||
g_want_run = 1;
|
||
g_level = g_st.level;
|
||
g_cache_gb = g_st.cache_limit_gb;
|
||
pthread_mutex_init(&g_play.mu, NULL);
|
||
meow_audio_on_preempt(on_audio_preempt, NULL); /* 被抢占 → 暂停（SDK 读线程分发） */
|
||
if (ncm_thread_create(&g_thr, player_thread, NULL) != 0) return -1;
|
||
g_thr_on = 1;
|
||
return 0;
|
||
}
|
||
|
||
void player_manager_stop_thread(void)
|
||
{
|
||
g_want_run = 0;
|
||
g_app_quit = 1;
|
||
audio_out_close(); /* 打断阻塞写 */
|
||
if (g_thr_on) {
|
||
pthread_join(g_thr, NULL);
|
||
g_thr_on = 0;
|
||
}
|
||
}
|