in point fix, low latency sdl, minor fixes

[melted] / src / modules / sdl / consumer_sdl.c

diff --git a/src/modules/sdl/consumer_sdl.c b/src/modules/sdl/consumer_sdl.c
index 962d4ae..1d1e959 100644 (file)
--- a/src/modules/sdl/consumer_sdl.c
+++ b/src/modules/sdl/consumer_sdl.c
@@ -55,7 +55,6 @@ struct consumer_sdl_s
        SDL_Surface *sdl_screen;
        SDL_Overlay *sdl_overlay;
        uint8_t *buffer;
-       int time_taken;
 };
 
 /** Forward references to static functions.
@@ -104,10 +103,10 @@ mlt_consumer consumer_sdl_init( char *arg )
                mlt_properties_set( this->properties, "rescale", "nearest" );
 
                // Default buffer for low latency
-               mlt_properties_set_int( this->properties, "buffer", 8 );
+               mlt_properties_set_int( this->properties, "buffer", 2 );
 
                // Default progressive true
-               mlt_properties_set_int( this->properties, "progressive", 1 );
+               mlt_properties_set_int( this->properties, "progressive", 0 );
 
                // Get aspect ratio
                this->aspect_ratio = mlt_properties_get_double( this->properties, "aspect_ratio" );
@@ -264,6 +263,7 @@ static int consumer_play_audio( consumer_sdl this, mlt_frame frame, int init_aud
        if ( mlt_properties_get_int( properties, "audio_off" ) )
        {
                this->playing = 1;
+               init_audio = 1;
                return init_audio;
        }
 
@@ -295,11 +295,11 @@ static int consumer_play_audio( consumer_sdl this, mlt_frame frame, int init_aud
 
        if ( init_audio == 0 )
        {
+               mlt_properties properties = mlt_frame_properties( frame );
                bytes = ( samples * channels * 2 );
                pthread_mutex_lock( &this->audio_mutex );
                while ( bytes > ( sizeof( this->audio_buffer) - this->audio_avail ) )
                        pthread_cond_wait( &this->audio_cond, &this->audio_mutex );
-               mlt_properties properties = mlt_frame_properties( frame );
                if ( mlt_properties_get_double( properties, "_speed" ) == 1 )
                        memcpy( &this->audio_buffer[ this->audio_avail ], pcm, bytes );
                else
@@ -316,7 +316,7 @@ static int consumer_play_audio( consumer_sdl this, mlt_frame frame, int init_aud
        return init_audio;
 }
 
-static int consumer_play_video( consumer_sdl this, mlt_frame frame, int64_t elapsed, int64_t playtime )
+static int consumer_play_video( consumer_sdl this, mlt_frame frame )
 {
        // Get the properties of this consumer
        mlt_properties properties = this->properties;
@@ -326,26 +326,8 @@ static int consumer_play_video( consumer_sdl this, mlt_frame frame, int64_t elap
        uint8_t *image;
        int changed = 0;
 
-       if ( mlt_properties_get_int( properties, "video_off" ) )
-       {
-               mlt_frame_close( frame );
-               return 0;
-       }
-
-       // Set skip
-       mlt_properties_set_position( mlt_frame_properties( frame ), "playtime", playtime );
-
-       // Push this frame to the back of the queue
-       mlt_deque_push_back( this->queue, frame );
-       frame = NULL;
-
-       if ( this->playing )
-               frame = mlt_deque_pop_front( this->queue );
-
-       if ( this->playing && frame != NULL && mlt_properties_get_int( mlt_frame_properties( frame ), "rendered" ) == 1 )
+       if ( mlt_properties_get_int( properties, "video_off" ) == 0 )
        {
-               playtime = mlt_properties_get_position( mlt_frame_properties( frame ), "playtime" );
-
                // Get the image, width and height
                mlt_frame_get_image( frame, &image, &vfmt, &width, &height, 0 );
 
@@ -365,6 +347,9 @@ static int consumer_play_video( consumer_sdl this, mlt_frame frame, int64_t elap
                                                this->window_height = event.resize.h;
                                                changed = 1;
                                                break;
+                                       case SDL_QUIT:
+                                               this->running = 0;
+                                               break;
                                        case SDL_KEYDOWN:
                                                {
                                                        mlt_producer producer = mlt_properties_get_data( properties, "transport_producer", NULL );
@@ -451,17 +436,10 @@ static int consumer_play_video( consumer_sdl this, mlt_frame frame, int64_t elap
                                SDL_DisplayYUVOverlay( this->sdl_overlay, &this->sdl_screen->clip_rect );
                        }
                }
-
-               if ( playtime > elapsed + 25000 )
-               {
-                       struct timespec tm = { ( playtime - elapsed ) / 1000000, ( ( playtime - elapsed ) % 1000000 ) * 1000 };
-                       nanosleep( &tm, NULL );
-               }
        }
 
        // Close the frame
-       if ( frame != NULL )
-               mlt_frame_close( frame );
+       mlt_frame_close( frame );
 
        return 0;
 }
@@ -486,6 +464,9 @@ static void *consumer_thread( void *arg )
        int64_t elapsed = 0;
        int duration = 0;
        int64_t playtime = 0;
+       struct timespec tm;
+       mlt_frame next = NULL;
+       mlt_frame frame = NULL;
 
        if ( SDL_Init( SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_NOPARACHUTE ) < 0 )
        {
@@ -500,7 +481,7 @@ static void *consumer_thread( void *arg )
        while( this->running )
        {
                // Get a frame from the attached producer
-               mlt_frame frame = mlt_consumer_rt_frame( consumer );
+               frame = mlt_consumer_rt_frame( consumer );
 
                // Ensure that we have a frame
                if ( frame != NULL )
@@ -518,13 +499,53 @@ static void *consumer_thread( void *arg )
                                        start = ( int64_t )now.tv_sec * 1000000 + now.tv_usec;
                                else
                                        elapsed = ( ( int64_t )now.tv_sec * 1000000 + now.tv_usec) - start;
-
                        }
 
-                       consumer_play_video( this, frame, elapsed, playtime );
+                       // Set playtime for this frame
+                       mlt_properties_set_position( mlt_frame_properties( frame ), "playtime", playtime );
 
+                       // Push this frame to the back of the queue
+                       mlt_deque_push_back( this->queue, frame );
+
+                       // Calculate the next playtime
                        playtime += ( duration * 1000 );
                }
+
+               if ( this->playing )
+               {
+                       // Pop the next frame
+                       next = mlt_deque_pop_front( this->queue );
+
+                       // See if we have to delay the display of the current frame
+                       if ( next != NULL && mlt_properties_get_int( mlt_frame_properties( next ), "rendered" ) == 1 )
+                       {
+                               mlt_position scheduled = mlt_properties_get_position( mlt_frame_properties( next ), "playtime" ) + 5000;
+                               if ( scheduled > elapsed && mlt_deque_count( this->queue ) > 25 )
+                               {
+                                       tm.tv_sec = ( scheduled - elapsed ) / 1000000;
+                                       tm.tv_nsec = ( ( scheduled - elapsed ) % 1000000 ) * 1000;
+                                       nanosleep( &tm, NULL );
+
+                                       // Show current frame
+                                       consumer_play_video( this, next );
+                               }
+                               else if ( scheduled > elapsed )
+                               {
+                                       // More time to kill
+                                       mlt_deque_push_front( this->queue, next );
+                               }
+                               else
+                               {
+                                       // Show current frame
+                                       consumer_play_video( this, next );
+                               }
+                       }
+                       else
+                       {
+                               // This is an unrendered frame - just close it
+                               mlt_frame_close( next );
+                       }
+               }
        }
 
        // internal cleanup