static void x264_lookahead_encoder_shift( x264_t *h )
{
int bframes = 0;
int i_frames = 0;
while( h->lookahead->ofbuf.list[i_frames] )
{
if( IS_X264_TYPE_B( h->lookahead->ofbuf.list[bframes]->i_type ) )
bframes++;
else
break;
i_frames++;
}
if( h->lookahead->ofbuf.list[i_frames] )
{
x264_frame_push( h->frames.current, x264_frame_shift( &h->lookahead->ofbuf.list[bframes] ) );
h->lookahead->ofbuf.i_size--;
if( h->param.b_bframe_pyramid && bframes > 1 )
{
x264_frame_t *mid = x264_frame_shift( &h->lookahead->ofbuf.list[bframes/2] );
h->lookahead->ofbuf.i_size--;
mid->i_type = X264_TYPE_BREF;
x264_frame_push( h->frames.current, mid );
bframes--;
}
while( bframes-- )
{
x264_frame_push( h->frames.current, x264_frame_shift( h->lookahead->ofbuf.list ) );
h->lookahead->ofbuf.i_size--;
}
x264_pthread_cond_broadcast( &h->lookahead->ofbuf.cv_empty );
}
}
static void x264_lookahead_shift( x264_synch_frame_list_t *dst, x264_synch_frame_list_t *src, int count )
{
int i = count;
while( i-- )
{
assert( dst->i_size < dst->i_max_size );
assert( src->i_size );
dst->list[ dst->i_size++ ] = x264_frame_shift( src->list );
src->i_size--;
}
if( count )
{
x264_pthread_cond_broadcast( &dst->cv_fill );
x264_pthread_cond_broadcast( &src->cv_empty );
}
}
static void *x264_lookahead_thread( x264_t *h )
{
while( !h->lookahead->b_exit_thread )
{
x264_pthread_mutex_lock( &h->lookahead->ifbuf.mutex );
x264_pthread_mutex_lock( &h->lookahead->next.mutex );
int shift = X264_MIN( h->lookahead->next.i_max_size - h->lookahead->next.i_size, h->lookahead->ifbuf.i_size );
x264_lookahead_shift( &h->lookahead->next, &h->lookahead->ifbuf, shift );
x264_pthread_mutex_unlock( &h->lookahead->next.mutex );
if( h->lookahead->next.i_size <= h->lookahead->i_slicetype_length + h->param.b_vfr_input )
{
while( !h->lookahead->ifbuf.i_size && !h->lookahead->b_exit_thread )
x264_pthread_cond_wait( &h->lookahead->ifbuf.cv_fill, &h->lookahead->ifbuf.mutex );
x264_pthread_mutex_unlock( &h->lookahead->ifbuf.mutex );
}
else
{
x264_pthread_mutex_unlock( &h->lookahead->ifbuf.mutex );
x264_lookahead_slicetype_decide( h );
}
} /* end of input frames */
x264_pthread_mutex_lock( &h->lookahead->ifbuf.mutex );
x264_pthread_mutex_lock( &h->lookahead->next.mutex );
x264_lookahead_shift( &h->lookahead->next, &h->lookahead->ifbuf, h->lookahead->ifbuf.i_size );
x264_pthread_mutex_unlock( &h->lookahead->next.mutex );
x264_pthread_mutex_unlock( &h->lookahead->ifbuf.mutex );
while( h->lookahead->next.i_size )
x264_lookahead_slicetype_decide( h );
x264_pthread_mutex_lock( &h->lookahead->ofbuf.mutex );
h->lookahead->b_thread_active = 0;
x264_pthread_cond_broadcast( &h->lookahead->ofbuf.cv_fill );
x264_pthread_mutex_unlock( &h->lookahead->ofbuf.mutex );
return NULL;
}
static void x264_lookahead_encoder_shift( x264_t *h )
{
if( !h->lookahead->ofbuf.i_size )
return;
int i_frames = h->lookahead->ofbuf.list[0]->i_bframes + 1;
while( i_frames-- )
{
x264_frame_push( h->frames.current, x264_frame_shift( h->lookahead->ofbuf.list ) );
h->lookahead->ofbuf.i_size--;
}
x264_pthread_cond_broadcast( &h->lookahead->ofbuf.cv_empty );
}
void x264_threadpool_delete( x264_threadpool_t *pool )
{
x264_pthread_mutex_lock( &pool->run.mutex );
pool->exit = 1;
x264_pthread_cond_broadcast( &pool->run.cv_fill );
x264_pthread_mutex_unlock( &pool->run.mutex );
for( int i = 0; i < pool->threads; i++ )
x264_pthread_join( pool->thread_handle[i], NULL );
x264_threadpool_list_delete( &pool->uninit );
x264_threadpool_list_delete( &pool->run );
x264_threadpool_list_delete( &pool->done );
x264_free( pool->thread_handle );
x264_free( pool );
}
static void x264_lookahead_thread( x264_t *h )
{
int shift;
#ifdef HAVE_MMX
if( h->param.cpu&X264_CPU_SSE_MISALIGN )
x264_cpu_mask_misalign_sse();
#endif
while( !h->lookahead->b_exit_thread )
{
x264_pthread_mutex_lock( &h->lookahead->ifbuf.mutex );
x264_pthread_mutex_lock( &h->lookahead->next.mutex );
shift = X264_MIN( h->lookahead->next.i_max_size - h->lookahead->next.i_size, h->lookahead->ifbuf.i_size );
x264_lookahead_shift( &h->lookahead->next, &h->lookahead->ifbuf, shift );
x264_pthread_mutex_unlock( &h->lookahead->next.mutex );
if( h->lookahead->next.i_size <= h->lookahead->i_slicetype_length )
{
while( !h->lookahead->ifbuf.i_size && !h->lookahead->b_exit_thread )
x264_pthread_cond_wait( &h->lookahead->ifbuf.cv_fill, &h->lookahead->ifbuf.mutex );
x264_pthread_mutex_unlock( &h->lookahead->ifbuf.mutex );
}
else
{
x264_pthread_mutex_unlock( &h->lookahead->ifbuf.mutex );
x264_lookahead_slicetype_decide( h );
}
} /* end of input frames */
#ifdef ERR1
x264_pthread_mutex_lock( &h->lookahead->next.mutex );
x264_pthread_mutex_lock( &h->lookahead->ifbuf.mutex );
#else
x264_pthread_mutex_lock( &h->lookahead->ifbuf.mutex );
x264_pthread_mutex_lock( &h->lookahead->next.mutex );
#endif
x264_lookahead_shift( &h->lookahead->next, &h->lookahead->ifbuf, h->lookahead->ifbuf.i_size );
#ifdef ERR1
x264_pthread_mutex_unlock( &h->lookahead->ifbuf.mutex );
x264_pthread_mutex_unlock( &h->lookahead->next.mutex );
#else
x264_pthread_mutex_unlock( &h->lookahead->next.mutex );
x264_pthread_mutex_unlock( &h->lookahead->ifbuf.mutex );
#endif
while( h->lookahead->next.i_size )
x264_lookahead_slicetype_decide( h );
x264_pthread_mutex_lock( &h->lookahead->ofbuf.mutex );
h->lookahead->b_thread_active = 0;
x264_pthread_cond_broadcast( &h->lookahead->ofbuf.cv_fill );
x264_pthread_mutex_unlock( &h->lookahead->ofbuf.mutex );
}
void x264_lookahead_delete( x264_t *h )
{
if( h->param.i_sync_lookahead )
{
h->lookahead->b_exit_thread = 1;
x264_pthread_cond_broadcast( &h->lookahead->ifbuf.cv_fill );
x264_pthread_join( h->thread[h->param.i_threads]->thread_handle, NULL );
x264_macroblock_cache_end( h->thread[h->param.i_threads] );
x264_free( h->thread[h->param.i_threads] );
}
x264_synch_frame_list_delete( &h->lookahead->ifbuf );
x264_synch_frame_list_delete( &h->lookahead->next );
if( h->lookahead->last_nonb )
x264_frame_push_unused( h, h->lookahead->last_nonb );
x264_synch_frame_list_delete( &h->lookahead->ofbuf );
x264_free( h->lookahead );
}
