ijkplayer-ios: distinction between normal buffering and seek buffering

Author: raymondzheng

ios/IJKMediaPlayer/IJKMediaPlayer/IJKFFMoviePlayerController.m

@@ -99,6 +99,7 @@ @implementation IJKFFMoviePlayerController {
 
 @synthesize monitor = _monitor;
 @synthesize shouldShowHudView           = _shouldShowHudView;
+@synthesize isSeekBuffering = _isSeekBuffering;
 
 #define FFP_IO_STAT_STEP (50 * 1024)
 
@@ -1180,10 +1181,12 @@ - (void)postEvent: (IJKFFMoviePlayerMessage *)msg
             _monitor.lastPrerollStartTick = (int64_t)SDL_GetTickHR();
 
             _loadState = IJKMPMovieLoadStateStalled;
+            _isSeekBuffering = avmsg->arg1;
 
             [[NSNotificationCenter defaultCenter]
              postNotificationName:IJKMPMoviePlayerLoadStateDidChangeNotification
              object:self];
+            _isSeekBuffering = 0;
             break;
         }
         case FFP_MSG_BUFFERING_END: {
@@ -1192,13 +1195,15 @@ - (void)postEvent: (IJKFFMoviePlayerMessage *)msg
             _monitor.lastPrerollDuration = (int64_t)SDL_GetTickHR() - _monitor.lastPrerollStartTick;
 
             _loadState = IJKMPMovieLoadStatePlayable | IJKMPMovieLoadStatePlaythroughOK;
+            _isSeekBuffering = avmsg->arg1;
 
             [[NSNotificationCenter defaultCenter]
              postNotificationName:IJKMPMoviePlayerLoadStateDidChangeNotification
              object:self];
             [[NSNotificationCenter defaultCenter]
              postNotificationName:IJKMPMoviePlayerPlaybackStateDidChangeNotification
              object:self];
+            _isSeekBuffering = 0;
             break;
         }
         case FFP_MSG_BUFFERING_UPDATE:

ios/IJKMediaPlayer/IJKMediaPlayer/IJKMediaPlayback.h

@@ -84,6 +84,7 @@ typedef NS_ENUM(NSInteger, IJKMPMovieTimeOption) {
 @property(nonatomic, readonly)  BOOL isPreparedToPlay;
 @property(nonatomic, readonly)  IJKMPMoviePlaybackState playbackState;
 @property(nonatomic, readonly)  IJKMPMovieLoadState loadState;
+@property(nonatomic, readonly) int isSeekBuffering;
 
 @property(nonatomic, readonly) int64_t numberOfBytesTransferred;