mk_player api 增加seek和获取进度以相对开始时间的接口以适应按时间轴方式回放的需求

api/include/mk_player.h

@@ -80,6 +80,13 @@ API_EXPORT void API_CALL mk_player_pause(mk_player ctx, int pause);
  */
 API_EXPORT void API_CALL mk_player_seekto(mk_player ctx, float progress);
 
+/**
+ * 设置点播进度条
+ * @param ctx 对象指针
+ * @param seekPos 取值范围 相对于开始时间增量 单位秒
+ */
+API_EXPORT void API_CALL mk_player_seektoByPos(mk_player ctx, int seekPos);
+
 /**
  * 设置播放器开启播放结果回调函数
  * @param ctx 播放器指针
@@ -155,10 +162,15 @@ API_EXPORT int API_CALL mk_player_audio_channel(mk_player ctx);
 API_EXPORT float API_CALL mk_player_duration(mk_player ctx);
 
 /**
- * 获取点播播放进度，取值范围未 0.0～1.0
+ * 获取点播播放进度，取值范围 0.0～1.0
  */
 API_EXPORT float API_CALL mk_player_progress(mk_player ctx);
 
+/**
+ * 获取点播播放进度位置，取值范围 相对于开始时间增量 单位秒
+ */
+API_EXPORT int API_CALL mk_player_progress_pos(mk_player ctx);
+
 /**
  * 获取丢包率，rtsp时有效
  * @param ctx 对象指针

api/source/mk_player.cpp

@@ -62,6 +62,16 @@ API_EXPORT void API_CALL mk_player_seekto(mk_player ctx, float progress) {
     });
 }
 
+
+API_EXPORT void API_CALL mk_player_seektoByPos(mk_player ctx, int seekPos)
+{
+    MediaPlayer::Ptr& player = *((MediaPlayer::Ptr*)ctx);
+    player->getPoller()->async([seekPos, player]() {
+        //切换线程后再操作
+        player->seekTo((uint32_t)seekPos);
+        });
+}
+
 static void mk_player_set_on_event(mk_player ctx, on_mk_play_event cb, void *user_data, int type) {
     assert(ctx && cb);
     MediaPlayer::Ptr &player = *((MediaPlayer::Ptr *)ctx);
@@ -169,6 +179,14 @@ API_EXPORT float API_CALL mk_player_progress(mk_player ctx) {
     return player->getProgress();
 }
 
+
+API_EXPORT int API_CALL mk_player_progress_pos(mk_player ctx)
+{
+    assert(ctx);
+    MediaPlayer::Ptr& player = *((MediaPlayer::Ptr*)ctx);
+    return player->getProgressPos();
+}
+
 API_EXPORT float API_CALL mk_player_loss_rate(mk_player ctx, int track_type) {
     assert(ctx);
     MediaPlayer::Ptr &player = *((MediaPlayer::Ptr *)ctx);

src/Common/Stamp.cpp

@@ -52,7 +52,10 @@ void Stamp::revise(int64_t dts, int64_t pts, int64_t &dts_out, int64_t &pts_out,
         //这是点播
         dts_out = dts;
         pts_out = pts;
-        _relativeStamp = dts_out;
+        _last_dts = dts;
+        if (_dts_base == -1)
+            _dts_base = dts;
+        _relativeStamp = _npt_base + dts - _dts_base;
         return;
     }
 
@@ -84,6 +87,8 @@ void Stamp::revise(int64_t dts, int64_t pts, int64_t &dts_out, int64_t &pts_out,
 }
 
 void Stamp::setRelativeStamp(int64_t relativeStamp) {
+    _dts_base = _last_dts;
+    _npt_base = relativeStamp;
     _relativeStamp = relativeStamp;
 }
 

src/Common/Stamp.h

@@ -71,6 +71,9 @@ private:
     int64_t _last_dts = -1;
     SmoothTicker _ticker;
     bool _playback = false;
+
+    int64_t _dts_base = 0;
+    int64_t _npt_base = 0;
 };
 
 

src/Player/PlayerBase.h

@@ -93,12 +93,24 @@ public:
      */
     virtual float getProgress() const { return 0;}
 
+    /**
+     * 获取播放进度pos，取值 相对开始时间增量 单位秒
+     * @return
+     */
+    virtual uint32_t getProgressPos() const { return 0; }
+
     /**
      * 拖动进度条
      * @param fProgress 进度，取值 0.0 ~ 1.0
      */
     virtual void seekTo(float fProgress) {}
 
+    /**
+     * 拖动进度条
+     * @param seekPos 进度，取值 相对于开始时间的增量 单位秒
+     */
+    virtual void seekTo(uint32_t seekPos) {}
+
     /**
      * 设置一个MediaSource，直接生产rtsp/rtmp代理
      * @param src
@@ -174,6 +186,12 @@ public:
         }
         return Parent::getProgress();
     }
+    uint32_t getProgressPos() const override {
+        if (_delegate) {
+            return _delegate->getProgressPos();
+        }
+        return Parent::getProgressPos();
+    }
     void seekTo(float fProgress) override{
         if (_delegate) {
             return _delegate->seekTo(fProgress);
@@ -181,6 +199,13 @@ public:
         return Parent::seekTo(fProgress);
     }
 
+    void seekTo(uint32_t seekPos) override {
+        if (_delegate) {
+            return _delegate->seekTo(seekPos);
+        }
+        return Parent::seekTo(seekPos);
+    }
+
     void setMediaSouce(const MediaSource::Ptr & src) override {
         if (_delegate) {
             _delegate->setMediaSouce(src);