mlt_deque queue;
pthread_t thread;
int running;
- uint8_t audio_buffer[ 4096 * 6 ];
+ uint8_t audio_buffer[ 4096 * 24 ];
int audio_avail;
pthread_mutex_t audio_mutex;
pthread_cond_t audio_cond;
SDL_AudioSpec request;
SDL_AudioSpec got;
- SDL_EnableKeyRepeat( SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL );
- SDL_EnableUNICODE( 1 );
-
// specify audio format
memset( &request, 0, sizeof( SDL_AudioSpec ) );
this->playing = 0;
if ( SDL_OpenAudio( &request, &got ) != 0 )
{
fprintf( stderr, "SDL failed to open audio: %s\n", SDL_GetError() );
+ mlt_properties_set_int( properties, "audio_off", 1 );
init_audio = 2;
}
else if ( got.size != 0 )
return init_audio;
}
-static int consumer_play_video( consumer_sdl this, mlt_frame frame, int64_t elapsed, int skip, int64_t playtime )
+static int consumer_play_video( consumer_sdl this, mlt_frame frame, int64_t elapsed, int64_t playtime )
{
+ int error = 0;
// Get the properties of this consumer
mlt_properties properties = this->properties;
int width = this->width, height = this->height;
uint8_t *image;
int changed = 0;
- int show = 1;
+ struct timeb now;
+ ftime( &now );
+ int64_t start = ( ( int64_t )now.time * 1000 + now.millitm );
if ( mlt_properties_get_int( properties, "video_off" ) )
{
return 0;
}
- // Handle events
- if ( this->sdl_screen != NULL )
+ if ( frame != NULL )
{
- SDL_Event event;
+ // Set playtime
+ mlt_properties_set_position( mlt_frame_properties( frame ), "playtime", playtime );
+ mlt_properties_set_double( mlt_frame_properties( frame ), "consumer_scale", ( double )height / mlt_properties_get_double( properties, "height" ) );
- changed = consumer_get_dimensions( &this->window_width, &this->window_height );
-
- while ( SDL_PollEvent( &event ) )
- {
- switch( event.type )
- {
- case SDL_VIDEORESIZE:
- this->window_width = event.resize.w;
- this->window_height = event.resize.h;
- changed = 1;
- break;
- case SDL_KEYDOWN:
- {
- mlt_producer producer = mlt_properties_get_data( properties, "transport_producer", NULL );
- char keyboard[ 2 ] = " ";
- void (*callback)( mlt_producer, char * ) = mlt_properties_get_data( properties, "transport_callback", NULL );
- if ( callback != NULL && producer != NULL && event.key.keysym.unicode < 0x80 && event.key.keysym.unicode > 0 )
- {
- keyboard[ 0 ] = ( char )event.key.keysym.unicode;
- callback( producer, keyboard );
- }
- }
- break;
- }
- }
+ // Push this frame to the back of the queue
+ mlt_deque_push_back( this->queue, frame );
}
- // Set skip
- mlt_properties_set_int( mlt_frame_properties( frame ), "skip", 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 )
{
// We might want to use an old frame if the current frame is skipped
mlt_frame candidate = NULL;
+ frame = NULL;
while ( frame == NULL && mlt_deque_count( this->queue ) )
{
frame = mlt_deque_peek_front( this->queue );
- show = !mlt_properties_get_int( mlt_frame_properties( frame ), "skip" );
playtime = mlt_properties_get_position( mlt_frame_properties( frame ), "playtime" );
// Check if frame is in the future or past
- if ( !show )
+ if ( playtime > elapsed + 500 )
{
+ // Too far in the future - play it now
frame = mlt_deque_pop_front( this->queue );
- mlt_frame_close( frame );
- frame = NULL;
}
- else if ( playtime > elapsed )
+ else if ( playtime > elapsed + 160 )
{
- // no frame to show or remove
- frame = NULL;
+ // Time to squeeze a few more frames in
+ frame = candidate;
+ candidate = NULL;
+ error = 1;
break;
}
- else if ( playtime < elapsed - 40 )
+ else if ( playtime < elapsed )
{
if ( candidate != NULL )
mlt_frame_close( candidate );
else if ( candidate != NULL )
mlt_frame_close( candidate );
}
+ else
+ {
+ if ( frame != NULL )
+ mlt_frame_get_image( frame, &image, &vfmt, &width, &height, 0 );
+ frame = NULL;
+ }
if ( this->playing && frame != NULL )
{
// Get the image, width and height
mlt_frame_get_image( frame, &image, &vfmt, &width, &height, 0 );
+ ftime( &now );
+ elapsed += ( ( int64_t )now.time * 1000 + now.millitm ) - start;
+ playtime = mlt_properties_get_position( mlt_frame_properties( frame ), "playtime" );
+ struct timespec slow = { 0, ( playtime - elapsed ) * 1000 };
+ if ( slow.tv_nsec > 50 )
+ nanosleep( &slow, NULL );
+
+ // Handle events
+ if ( this->sdl_screen != NULL )
+ {
+ SDL_Event event;
+
+ changed = consumer_get_dimensions( &this->window_width, &this->window_height );
+
+ while ( SDL_PollEvent( &event ) )
+ {
+ switch( event.type )
+ {
+ case SDL_VIDEORESIZE:
+ this->window_width = event.resize.w;
+ this->window_height = event.resize.h;
+ changed = 1;
+ break;
+ case SDL_KEYDOWN:
+ {
+ mlt_producer producer = mlt_properties_get_data( properties, "transport_producer", NULL );
+ char keyboard[ 2 ] = " ";
+ void (*callback)( mlt_producer, char * ) = mlt_properties_get_data( properties, "transport_callback", NULL );
+ if ( callback != NULL && producer != NULL && event.key.keysym.unicode < 0x80 && event.key.keysym.unicode > 0 )
+ {
+ keyboard[ 0 ] = ( char )event.key.keysym.unicode;
+ callback( producer, keyboard );
+ }
+ }
+ break;
+ }
+ }
+ }
+
if ( width != this->width || height != this->height )
{
this->width = width;
if ( frame != NULL )
mlt_frame_close( frame );
- if ( mlt_deque_count( this->queue ) && !skip )
- {
- // Tell the producers about our scale relative to the normalisation
- frame = mlt_deque_peek_front( this->queue );
- mlt_properties_set_double( mlt_frame_properties( frame ), "consumer_scale",
- ( double )height / mlt_properties_get_double( properties, "height" ) );
- mlt_frame_get_image( frame, &image, &vfmt, &width, &height, 0 );
- }
-
- return 0;
+ return error;
}
/** Threaded wrapper for pipe.
int64_t elapsed = 0;
int duration = 0;
int64_t playtime = 0;
- int skip = 0;
+ // Initialise the SDL subsystem
if ( SDL_Init( SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_NOPARACHUTE ) < 0 )
{
fprintf( stderr, "Failed to initialize SDL: %s\n", SDL_GetError() );
return NULL;
}
-
+
+ // Additional initialisation
+ SDL_EnableKeyRepeat( SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL );
+ SDL_EnableUNICODE( 1 );
+
// Loop until told not to
while( this->running )
{
// Get a frame from the attached producer
mlt_frame frame = mlt_consumer_get_frame( consumer );
+ mlt_frame video_frame = frame;
+ int done = 0;
// Ensure that we have a frame
- if ( frame != NULL )
+ while ( !done )
{
- skip = 0;
-
- // SDL adapts display aspect, but set this so pixel aspect can be normalised
-// mlt_properties_set_double( mlt_frame_properties( frame ), "consumer_aspect_ratio",
-// mlt_frame_get_aspect_ratio( frame ) );
-
// Play audio
- init_audio = consumer_play_audio( this, frame, init_audio, &duration );
+ if ( sizeof( this->audio_buffer ) - this->audio_avail > 8192 || mlt_deque_count( this->queue ) == 1 )
+ {
+ init_audio = consumer_play_audio( this, frame, init_audio, &duration );
+ done = 1;
+ }
if ( this->playing )
{
start = ( int64_t )now.time * 1000 + now.millitm;
else
elapsed = ( ( int64_t )now.time * 1000 + now.millitm ) - start;
-
- skip = playtime < elapsed;
-
- if ( skip )
- start = start + ( elapsed - playtime );
}
- consumer_play_video( this, frame, elapsed, skip, playtime );
+ if ( consumer_play_video( this, video_frame, elapsed, playtime ) )
+ {
+ if ( !done )
+ {
+ init_audio = consumer_play_audio( this, frame, init_audio, &duration );
+ done = 1;
+ }
+ }
- playtime += duration;
+ if ( video_frame != NULL )
+ {
+ video_frame = NULL;
+ playtime += duration;
+ }
}
}
projects / mlt / commitdiff