i have player on ios based on vlc via mobilevlckit.framework.
when executing , playing h264 rtsp stream, iphone show video correctly. however, in beginning few seconds, there green screen shown. think reason i-frame has not arrived, , yuv=000 mapped green color in rgb.
could add option or operation force player play after receiving i-frame? or there other method avoid green screen problem?
here code
- (instancetype)initwithframe:(cgrect)frame { self = [super init]; if (self) { self.player = [[vlcmediaplayer alloc] init]; self.player.delegate = self; self.player.media = [vlcmedia mediawithurl:[nsurl urlwithstring:@"rtsp://...."]]; self.player.drawable = self.contentview; } return self; } - (void)play { if (self.player && !self.player.isplaying) { [slef.player play]; } } any reply appreciated. thanks!
actually, modification should in function static picture_t *decodevideo( decoder_t *p_dec, block_t **pp_block ) of /modules/codec/avcodec/video.c.
add following code in beginning of decodevideo() function skip non-i frame green screen problem can solved.
if (p_sys->b_first_frame && b_gotpicture) { if (av_picture_type_i != frame->pict_type) { av_frame_unref(frame); break; } } and then, build mobilevlckit.framework myself.
