1 /*****************************************************************************
2 * thread.c: threaded input
3 *****************************************************************************
4 * Copyright (C) 2003-2010 x264 project
6 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
7 * Loren Merritt <lorenm@u.washington.edu>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
23 * This program is also available under a commercial proprietary license.
24 * For more information, contact us at licensing@x264.com.
25 *****************************************************************************/
34 x264_threadpool_t *pool;
37 struct thread_input_arg_t *next_args;
40 typedef struct thread_input_arg_t
48 static int open_file( char *psz_filename, hnd_t *p_handle, video_info_t *info, cli_input_opt_t *opt )
50 thread_hnd_t *h = malloc( sizeof(thread_hnd_t) );
51 FAIL_IF_ERR( !h || input.picture_alloc( &h->pic, info->csp, info->width, info->height ),
52 "x264", "malloc failed\n" )
54 h->p_handle = *p_handle;
56 h->next_args = malloc( sizeof(thread_input_arg_t) );
60 h->next_args->status = 0;
61 h->frame_total = info->num_frames;
62 thread_input.picture_alloc = h->input.picture_alloc;
63 thread_input.picture_clean = h->input.picture_clean;
65 if( x264_threadpool_init( &h->pool, 1, NULL, NULL ) )
72 static void read_frame_thread_int( thread_input_arg_t *i )
74 i->status = i->h->input.read_frame( i->pic, i->h->p_handle, i->i_frame );
77 static int read_frame( cli_pic_t *p_pic, hnd_t handle, int i_frame )
79 thread_hnd_t *h = handle;
82 if( h->next_frame >= 0 )
84 x264_threadpool_wait( h->pool, h->next_args );
85 ret |= h->next_args->status;
88 if( h->next_frame == i_frame )
89 XCHG( cli_pic_t, *p_pic, h->pic );
91 ret |= h->input.read_frame( p_pic, h->p_handle, i_frame );
93 if( !h->frame_total || i_frame+1 < h->frame_total )
96 h->next_args->i_frame = i_frame+1;
97 h->next_args->pic = &h->pic;
98 x264_threadpool_run( h->pool, (void*)read_frame_thread_int, h->next_args );
106 static int release_frame( cli_pic_t *pic, hnd_t handle )
108 thread_hnd_t *h = handle;
109 if( h->input.release_frame )
110 return h->input.release_frame( pic, h->p_handle );
114 static int close_file( hnd_t handle )
116 thread_hnd_t *h = handle;
117 x264_threadpool_delete( h->pool );
118 h->input.close_file( h->p_handle );
119 h->input.picture_clean( &h->pic );
120 free( h->next_args );
125 cli_input_t thread_input = { open_file, NULL, read_frame, release_frame, NULL, close_file };